WO2007034016A1 - Tool for the manual grinding and sharpening of cutting implements - Google Patents

Tool for the manual grinding and sharpening of cutting implements Download PDF

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Publication number
WO2007034016A1
WO2007034016A1 PCT/ES2006/000522 ES2006000522W WO2007034016A1 WO 2007034016 A1 WO2007034016 A1 WO 2007034016A1 ES 2006000522 W ES2006000522 W ES 2006000522W WO 2007034016 A1 WO2007034016 A1 WO 2007034016A1
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WO
WIPO (PCT)
Prior art keywords
hard metal
useful
metal plates
sharpening
handle
Prior art date
Application number
PCT/ES2006/000522
Other languages
Spanish (es)
French (fr)
Inventor
Frederic Sciamma
Agustí CHICO ROCA
Lluís CHICO ROCA
Antonio VIÑAS GARCIA
Jaume Coma Pedrals
Original Assignee
Frederic Sciamma
Chico Roca Agusti
Chico Roca Lluis
Vinas Garcia Antonio
Jaume Coma Pedrals
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frederic Sciamma, Chico Roca Agusti, Chico Roca Lluis, Vinas Garcia Antonio, Jaume Coma Pedrals filed Critical Frederic Sciamma
Priority to EP06819986A priority Critical patent/EP1944127B1/en
Priority to ES06819986T priority patent/ES2420681T3/en
Publication of WO2007034016A1 publication Critical patent/WO2007034016A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
    • B24D15/081—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors with sharpening elements in interengaging or in mutual contact

Definitions

  • the present invention relates to a tool for grinding and polishing manually cutting tools. such as knives and other similar edges, by means of superimposed and crossed hard metal plates.
  • the tool is multifunctional and includes a coupling for different accessories, as well as an accessible drawer to house other accessories.
  • the international patent application WO 03/076137 A1 discloses a tool of this type comprising a body with a head at one end and a handle extending to the other end.
  • the head includes seats in which the aforementioned rectangular hard metal plates are mounted, arranged one on the other and with respective crossed edges.
  • from each of the seats protruding bolts that are inserted into corresponding holes formed in each of the hard metal plates, so that the hard metal plates are arranged in fixed positions.
  • the head defines a notch through which the crossing zone of the hard metal plates is accessible, which constitutes a sharpening zone.
  • the present invention aims to provide a tool for manually sharpening and polishing cutting tools that incorporates several improvements over the prior art useful.
  • the tool for manually sharpening and polishing cutting tools comprises: a body defining a head and a handle; first and second seats located in said head to respectively support first and second hard metal plates arranged one on the other with respective crossed edges; articulation means of each of said first and second hard metal plates to said first and second seats and comprising a first stud or rod and a first hole, coupled by insertion; a notch in said head through which a crossing zone of said crossed edges of the first and second hard metal plates is accessible, said crossing zone constituting at least one sharpening zone; and a cover adapted to be releasably coupled to the head and configured to retain the first and second hard metal plates in the head.
  • Said first and second seats provide sufficient space to allow the first and second hard metal plates to pivot in opposite directions around the respective first studs or stems inserted in the first holes, at least one elastic element being arranged to push the first and second hard metal plates Ia towards each other, so that the first and second hard metal plates pivot against the thrust of said elastic element, which is at least one, as a consequence of a pressure exerted by a cutting tool on said Crossing area of the crossed edges of the first and second hard metal plates.
  • the tool further comprises, for each of said hard metal plates, guide and stop means integrated by a second stud or rod which is coupled by insertion in a corresponding second elongated hole and / or enlarged, so said coupling of said second elongated and / or enlarged holes and studs allows relative sliding when the first and second hard metal plates pivot.
  • the lugs or stems may protrude from the seats to be inserted into holes in the plates, or they may protrude from the plates to be inserted in holes in the seats, or combinations thereof, or the stems may be separate pieces inserted in holes. of the seats and in holes of the plates.
  • the head includes a cover adapted to be releasably coupled to the head and configured to retain the first and second hard metal plates in the head.
  • the tool of the present invention is characterized in that said second holes of the first and second hard metal plates are elongated and / or enlarged, and because it includes at least one elastic element arranged to push the first and second hard metal plates Ia a towards the other.
  • first and second hard metal plates are suitable for pivoting in opposite directions around the respective first studs inserted in the first holes against the thrust of said elastic element, which is at least one, while the second elongated holes and / or enlarged slide over the corresponding second lugs as a result of a pressure exerted by a cutting tool on said crossing area of the crossed edges of the first and second hard metal plates.
  • the first studs or rods that act as pivots on which the corresponding first and second carbide plates rotate are located closer to the entrance of the notch than the crossing point and that the second studs, which act as a guide and travel limit for the turns of the corresponding first and second hard metal plates.
  • the first and second hard metal plates rotate or swing against the thrust of the elastic element so that the angle formed by the respective crossed edges becomes more acute, so that the edges of the hard metal plates increase the contact with the flanks of the cutting edge of the cutting tool to be sharpened.
  • the sharpening system of tilting plates and depending on the force or pressure exerted by the tool to be sharpened the platelets adapt to the different contours of the knife or tool to be sharpened.
  • each of the first and second hard metal plates has their respective curved cross edges convexly, which increases the effect of sharpening the angle in the crossing area.
  • the angle in the crossing area corresponds to the angle formed by the tangents to the curved convex edges crossed in the crossing area.
  • each of the first and second hard metal plates has a symmetrical contour with respect to a longitudinal plane centered on the respective first and second holes.
  • said contour of each of the first and second hard metal plates is approximately oval and optionally has a truncated portion at a longitudinal end closer to the respective second hole, while the end closest to the respective first hole is rounded.
  • This configuration allows the first and second hard metal plates to be interchanged in order to make the most of their edges that can be crossed in the crossing area.
  • the crossing zone experiences displacements due to the tilting of the first and second hard metal plates during sharpening and / or polishing, which provides a better use of the material of the cross edges of the hard metal plates by allowing less wear of the hard metal plates since it does not always act on the Same sharpening point. Therefore, there is a greater use of sharpening or polishing edges.
  • each of the first and second hard metal plates has a rounded edge at the confluence of a first major face with a perimeter edge defining said convex curved edge, and a living edge at the confluence of a second, opposite major face , with the aforementioned song.
  • the first and second hard metal plates are arranged with the first face of the one on the second face of the other, whereby the said rounded edge of one of the plates is adjacent to said living edge of the Another of the plates.
  • the edge of a cutting tool when the edge of a cutting tool is pressed against the crossing area and moved along one direction in one direction against the two living edges of the crossed edges, the living edges produce a sharpness of the edge, and when then the edge is displaced along said direction in the opposite direction, against the two rounded edges, the rounded edges produce a sharpening of the previously sharpened edge.
  • the notch In the head, the notch is oriented towards a first side of said handle, where the tool has a widening. This configuration means that the cutting tool edge that is being sharpened is not directed towards the hand that grabs the tool by the handle, but perpendicular to it, which reduces the risk of cuts and accidents.
  • the elongated body has a flat bottom that is suitable for being supported on a flat base, such as a table or the like.
  • This flat lower part has a projection suitable for abutting against a edge of said flat base and thereby resisting the pressure exerted by a cutting tool on the crossing area. This configuration reduces the effort to be made and increases the safety in the handling of the tool.
  • the head comprises, on a second side of the handle, opposite said first side, a coupling adapted to receive and releasably hold an accessory such as, for example, a sharpening assembly with a first sharpening plate, a can opener, or a peeling set among others.
  • the accessory includes one or more elastic tabs that engage in corresponding coupling retention configurations.
  • the coupling comprises guide configurations that cooperate with corresponding guide configurations existing in a coupling portion of the accessory.
  • the handle in a possible embodiment includes a housing that extends along it.
  • This housing has, at one end of the handle opposite the head, an opening to receive inserted a drawer or tray capable of housing at least one complement, such as a tool tip, a Japanese whetstone, a set of tool tips, or a utensil such as a useful clipper or a spoon.
  • This drawer or tray has, next to an outer end thereof, at least one elastic tongue capable of engaging and being retained in a handle retention configuration, and an end wall capable of closing said opening of the housing when the drawer or tray is housed in the handle.
  • the drawer or tray also has a seat with an opening in said final wall to hold the tool tip in an operative situation.
  • the drawer or tray also has a cavity with an opening in said final wall to receive inserted a rear portion of a second sharpening plate, so that a front portion thereof protrudes outwardly from the final wall.
  • Both the first sharpening plate mentioned above and this second sharpening plate are held and held in their respective cavities by elastic clips that have outer parts capable of pressing against interior surfaces of the cavity and inner parts capable of pressing against outer surfaces of the grinding plates.
  • Fig. 1 is an exploded perspective view of a multifunctional tool for sharpening and polishing cutting tools manually, according to an embodiment of the present invention, with an accessory that constitutes a sharpening assembly installed in a coupling of the Useful;
  • Fig. 2 is a perspective view of an enlarged detail showing the assembly of first and second hard metal plates in a head of the tool of Fig. 1;
  • Fig. 3 is an enlarged perspective view of one of said hard metal plates;
  • Figs. 4 and 5 are partial plan views showing the operation of a sharpening and polishing area of the head before and during a sharpening and / or polishing operation;
  • Fig. 6 is a plan view of the tool of Fig. 1;
  • Figs. 7, 8 and 9 are cross-sectional views taken along lines VII-VII, VIII-VIII and IX-IX of Fig. 6, respectively;
  • Fig. 10 is an enlarged partial view in cross section taken along line X-X of Fig. 6;
  • Fig. 11 is a rear view of the tool of Fig. 1 showing the end of the handle furthest from the head;
  • Fig. 12 is a partial plan view showing alternative mounting means of the first and second hard metal plates in the head;
  • Figs. 13 and 14 are plan and profile views of a tool such as that of Fig. 1 in which the accessory constituting a sharpening assembly is replaced by a can opener accessory;
  • Fig. 15 is a perspective view of an enlarged detail showing the can opener accessory ready to be installed in the tool coupling;
  • Fig. 16 is a perspective view of an enlarged detail showing an accessory that constitutes an alternative stripping assembly ready to be installed in the coupling of the tool; Y
  • Figs. 17 to 20 are views that illustrate various ways of holding the tool, demonstrating its ergonomics. Detailed description of some embodiments
  • an exploding multifunctional tool for manually sharpening and polishing cutting tools which comprises a body 1 defining a head 3 at one end and a handle 2 extending from head 3 to the other end.
  • Said head 3 has a widening on a first side of said handle 2 in which an oriented groove 10 is formed, approximately 90 degrees with respect to the longitudinal direction of the handle 2.
  • first and second seats 4a and 4b are formed on which first and second carbide plates 5a and 5b are mounted respectively, equal to each other, as best shown in Fig. 2.
  • Each of the first and second hard metal plates 5a and 5b (see, for example, the first plate 5a illustrated in Fig. 3) has a larger first face 43, a larger, opposite second face 44 and a perimeter edge 45 defining an outline, and having a first circular hole ⁇ a, 8b and a second elongated hole 9a, 9b of curved path with its center in said first circular hole 8a, 8b formed.
  • the mentioned contour is symmetrical with respect to a longitudinal plane centered in the respective first and second holes 8a, 8b and 9a, 9b.
  • the first and second seats 4a, 4b are at different levels, so that the first and second hard metal plates 5a and 5b are arranged one on the other and with respective crossed edges. Through the aforementioned notch 10 formed in the head 3, the crossing area of said crossed edges of the first and second hard metal plates 5a and 5b is accessible, which constitutes a sharpening and polishing zone.
  • each of the first and second hard metal plates 5a and 5b is approximately oval, with a truncated portion at a longitudinal end closer to the respective second hole 9a, 9b, so that respective crossed edges are convexly curved.
  • the mentioned convex portion is optional.
  • the confluence of said first face 43 with said perimeter edge 45 (Fig. 3) forms a rounded edge 37 and the confluence of said second face 44 with the perimeter edge 45 forms a living edge 38.
  • the difference in level between the first and second seats 4a, 4b is equal to the thickness of the plates, and the first and second hard metal plates 5a and 5b are arranged so that the first face 43 of one of them is attached to the second face 44 of The other, whereby said rounded edge 37 of one of the plates 5b is adjacent to said living edge 38 of the other of the plates 5a.
  • the first faces 43 of both first and second hard metal plates 5a and 5b are supported on their respective first and second seats 4a, 4b in the head 3 (see also Fig. 10).
  • first and second lugs 6a, 6b and 7a, 7b are adapted to be inserted in the corresponding first and second holes 8a, 8b and 9a, 9b formed in each of the first and second hard metal plates 5a and 5b.
  • a cover 11 adapted to be releasably coupled to the head 3 is arranged by means of an elastic tongue 39 capable of fit and be retained in a retention configuration 40 of the head 3 (see also Fig. 7) and of fins 46 formed in the cover 11 capable of being inserted in corresponding recesses 47 of the head 3 (see also Fig. 8 ).
  • This cover 11 has ribs 48 configured to rest on the first and second hard metal plates 5a and 5b in order to retain them in the head 3, as shown in Fig. 7.
  • To allow unlocking the elastic tongue 39 of The retention configuration 40 Ia cover 11 includes a pressable area 49 capable of deflecting the elastic tongue 39 when pressed (Fig. 7).
  • the head 3 includes elastic elements 12a, 12b constituted by two pieces of an elastomeric material arranged between the respective first and second hard metal plates 5a and 5b and surfaces of the head 3 to push the first and second plates of hard metal 5a and 5b Ia towards the other.
  • the first and second hard metal plates 5a and 5b are able to pivot in opposite directions around the respective first studs 6a, 6b inserted in the first holes 8a, 8b, while the second elongated and / or enlarged second holes 9a, 9b slide over the corresponding second lugs 7a, 7b as a result of a pressure exerted by a cutting tool H on said crossing area of the crossed edges of the first and second hard metal plates 5a and 5b.
  • first studs 6a, 6b and corresponding first holes 8a, 8b are located closer to the entrance of said notch 10 than the crossing point and that the second studs 7a, 7b and corresponding second holes 9a, 9b.
  • the rotation of the first and second hard metal plates 5a and 5b as a result of a pressure exerted by a cutting tool H on the crossing area tends to close this crossing area by sharpening the angle formed by the crossed edges of the first and second hard metal plates 5a and 5b.
  • the second holes 9a, 9b could simply be enlarged to allow the movement of the first and second hard metal plates 5a and 5b in relation to the second studs 7a, 7b.
  • the elongated body 1 has a flat bottom part 13 suitable for being supported on a flat base P and said flat bottom part 13 has a shoulder 41 suitable for abutting against an edge M of said flat base P and thereby resist said pressure exerted by a cutting tool H on the crossing area.
  • Fig. 12 an alternative embodiment example is shown comprising a metal strip 50 arranged to push the first and second hard metal plates 5a and 5b Ia towards each other instead of the mentioned elastomeric material parts.
  • the function of pushing the first and second hard metal plates 5a and 5b towards each other makes a torsion spring, or a pair of compression springs, or other means, itself known and functionally equivalent.
  • the head 3 On a second side of the handle 2 opposite said first side towards which the notch 10 is oriented, the head 3 comprises a coupling 14 adapted to receive and detachably hold an accessory.
  • the aforementioned accessory is a sharpening assembly 15 specially adapted for sharpening scissors, although it is applicable to other types of edges, and other accessories such as a can opener 16 and a stripping set 42, which will be described below. All accessories are interchangeable, and for this purpose said coupling 14 of head 3 comprises a housing 17 for receiving a coupling portion 18 common in any of said accessories, and at least one retention configuration 19 adapted to receive and retain at least one elastic tongue 20 of the accessory.
  • guide configurations 21 are arranged to cooperate with corresponding guide configurations 22 of said coupling portion 18 of the accessory to guide the insertion of the accessory and resist a torque of the accessory relative to the handle 2 when the accessory is coupled in said coupling 14.
  • said guide configurations 22 are mutually parallel and are as far apart as possible in a plane parallel to the longitudinal direction of handle 2 (Fig. 14). With this, the guide configurations 22 define an insertion plane of the accessory to the housing 17 of the head 3.
  • Each accessory also includes a pressable area 55 capable of deflecting the elastic tongue 20 when pressed (Fig.
  • the accessory consisting of a sharpening assembly 15 is illustrated in Figs. 1 and 2 and in Figs. 6 to 9.
  • the sharpening assembly 15 comprises a support 23 that includes said coupling portion 18, a pair of said elastic tongues 20 with their corresponding pressable areas 55, and said guide configurations 22.
  • Said support 23 has a cavity formed 25 adapted to accommodate a rear portion of a first sharpening plate 24 having a front portion protruding out of said support 23.
  • first elastic clips 26 are arranged approximately in the form of "U" having outer parts capable of pressing against facing inner surfaces of said cavity 25 and inner parts capable of pressing at the same time against opposite outer surfaces of said first sharpening plate 24, as shown in Fig. 9.
  • the body 1 of the tool has a protuberance that defines an inc plane lined 58 (Fig. 6) with a predetermined degree of inclination in relation to an outer edge of the first sharpening plate 24, said inclined plane serving as a support for a cutting tool, especially a scissors, to be sharpened.
  • the accessory consisting of a can opener 16 is described below, which comprises a support 51 which includes, like all the aforementioned accessories, said coupling portion 18, a pair of said elastic tongues 20 with their corresponding areas pressable 55, and said guide configurations 22.
  • the can opener 16 is of the rotary type and comprises a rotation axis 56 perpendicular to an insertion plane of the accessory in said housing 17 defined by the guide configurations 21.
  • the axis of rotation 56 of the can opener 16 is perpendicular to the longitudinal direction of the handle 2.
  • the mentioned axis of rotation 56 is connected to a drive knob 52 located in a position shifted to one side with respect to the body 1 so that it can be seized and operated comfortably without interference (Figs. 14, 15 and 20).
  • the accessory consisting of a stripping assembly 42 is described below in relation to Fig. 16.
  • the said stripping assembly 42 comprises a support 53 which includes, like all the aforementioned accessories, said coupling portion 18, a pair of said elastic tabs 20 with their corresponding pressable areas 55, and said guide configurations 22.
  • Said support 53 defines a fork that pivotally supports a peeler blade 54.
  • the handle 2 comprises an inner housing that extends along it.
  • Said housing has an opening 27 at one end of the handle 2 opposite the head 3 to receive inserted through it a drawer or tray 28 capable of housing one or more complements, such as a series of tool tips 31.
  • Said drawer or tray 28 has elastic fins 32 adapted to hold said tool tips 31 in storage situation.
  • the drawer or tray 28 has, next to an outer end thereof, an end wall 30 capable of closing said opening 27 when the drawer or tray 28 is housed in the handle 2. From the lateral ends of said end wall 30 a pair of elastic tongues 29 able to fit and being retained in a retention configuration formed in the handle 2.
  • each elastic tongue 29 has an associated pressable area 57 capable of deflecting the elastic tongue 29 when pressed .
  • each of said tool tips 31 has a coupling portion of polygonal section, and in said end wall 30 a seat 33 is formed with an opening through which said coupling portion of any of the tool tips 31 for holding the tool tip 31 in an operative situation aligned with the longitudinal direction of the handle 2.
  • the said seat 33 has a polygonal section conjugated with said polygonal section of the coupling portion of the tool tip 31 for transmitting to it a torque applied on the handle 2.
  • the drawer or tray 28 has a cavity 34 having an opening in said end wall 30.
  • Said cavity 34 is adapted to receive a rear portion of a second sharpening plate 35 inserted , so that a front portion of the second sharpening plate 35 protrudes outwardly from the final wall 30.
  • second elastic clips 36 are provided which have outer parts capable of pressing against facing inner surfaces of said cavity 34 and inner parts capable of pressing against opposite outer surfaces of the second sharpening plate 35.
  • the handle 2 is designed from an ergonomic point of view so that it can be grasped with one hand in different ways adapted to the use of the sharpener and the different accessories.
  • Fig. 17 shows a way of grasping the handle 2 suitable for using the accessory that constitutes a sharpening assembly 15 coupled to the head 3.
  • Fig. 18 shows a way of grasping the handle 2 suitable for using the area of sharpening and polishing defined by the notch 10 of the head 3.
  • Fig. 19 shows a way of grasping the handle 2 suitable for using a tip of tool 31 installed in the final wall 30 of the drawer or tray 28 located at the end of the handle 2 furthest from the head 3.
  • Fig. 20 shows a way of grasping the handle 2 suitable for using the attached can opener accessory 16 to head 3 to open a can L.

Abstract

The invention relates to a tool for the manual grinding and sharpening of cutting implements. The inventive tool comprises a body (1) defining a handle (2) and a head (3) which is equipped with seats (4a, 4b) for supporting respective hard metal plates (5a, 5b) which are disposed on top of one another with respective overlapping edges and which can be accessed through a notch (10). According to the invention, when a pressure is exerted on said overlapping edges by a cutting implement that is to be sharpened, the plates (5a, 5b) pivot in opposing directions around respective first lugs (6a, 6b) which are inserted into first holes (8a, 8b) in the plates, against the thrust from elastic elements (12a, 12b), while second long holes (9a, 9b) in the plates slide along second lugs (7a, 7b). The multi-purpose tool also includes a device (14) for coupling different attachments such as a sharpening assembly (15), a can opener or a peeler and the handle (2) houses a compartment (28) for other accessories.

Description

ÚTIL PARA AFILAR Y PULIR MANUALMENTE HERRAMIENTAS DE CORTE USEFUL TO SHARP AND POLISH MANUALLY CUTTING TOOLS
Sector de Ia técnicaTechnical sector
La presente invención concierne a un útil para afilar y pulir manualmente herramientas de corte, .tales como cuchillos y otros filos similares, mediante placas de metal duro superpuestas y cruzadas. El útil es multifuncional e incluye a tal efecto un acoplamiento para diferentes accesorios, así como un cajón accesible para albergar otros complementos.The present invention relates to a tool for grinding and polishing manually cutting tools. such as knives and other similar edges, by means of superimposed and crossed hard metal plates. The tool is multifunctional and includes a coupling for different accessories, as well as an accessible drawer to house other accessories.
Estado de Ia técnica anteriorState of the prior art
Es conocido un tipo de útil para afilar y pulir manualmente herramientas de corte que utiliza un soporte en el que están fijadas dos placas de metal duro superpuestas, con unos respectivos cantos cruzados en un ángulo agudo, donde Ia zona de afilado está constituida por Ia zona de cruce de dichos cantos cruzados. Presionando y desplazando el filo de una herramienta de corte a afilar contra Ia mencionada zona de cruce ocasiona que unas aristas vivas de los cantos de las placas-de metal duro arranquen material de ambos lados del filo de Ia herramienta de corte, afilándolo.It is known a type of tool for manually sharpening and polishing cutting tools that uses a support in which two superimposed hard metal plates are fixed, with respective edges crossed at an acute angle, where the sharpening zone is constituted by the area of crossing of said crossed songs. Pressing and moving the edge of a cutting tool to be sharpened against the said crossing area causes live edges of the edges of the hard metal plates to tear material from both sides of the cutting tool edge, sharpening it.
La solicitud de patente internacional WO 03/076137 A1 da a conocer un útil de este tipo que comprende un cuerpo con un cabezal en un extremo y un mango que se extiende hasta el otro extremo. El cabezal incluye unos asientos en los que están montadas las mencionadas placas de metal duro rectangulares, dispuestas Ia una sobre Ia otra y con unos respectivos cantos cruzados. En un ejemplo de realización, desde cada uno de los asientos sobresalen unos tetones que se insertan en unos correspondientes agujeros formados en cada una de las placas de metal duro, con Io que las placas de metal duro quedan dispuestas en unas posiciones fijas. El cabezal define una entalladura a través de Ia cual es accesible Ia zona de cruce de las placas de metal duro, Ia cual constituye una zona de afilado. Sobre los asientos del cabezal se dispone una cubierta de quita y pon configurada para retener las primera y segunda placas de metal duro en el cabezal impidiendo que escapen de los mencionados tetones. La presente invención tiene como objetivo aportar un útil para afilar y pulir manualmente herramientas de corte que incorpore varias mejoras respecto al útil del estado de Ia técnica anterior.The international patent application WO 03/076137 A1 discloses a tool of this type comprising a body with a head at one end and a handle extending to the other end. The head includes seats in which the aforementioned rectangular hard metal plates are mounted, arranged one on the other and with respective crossed edges. In an exemplary embodiment, from each of the seats protruding bolts that are inserted into corresponding holes formed in each of the hard metal plates, so that the hard metal plates are arranged in fixed positions. The head defines a notch through which the crossing zone of the hard metal plates is accessible, which constitutes a sharpening zone. On the head seats there is a removable cover set to retain the first and second hard metal plates in the head preventing them from escaping from the mentioned lugs. The present invention aims to provide a tool for manually sharpening and polishing cutting tools that incorporates several improvements over the prior art useful.
Exposición de Ia invenciónExhibition of the invention
El útil para afilar y pulir manualmente herramientas de corte, multifuncional, de acuerdo con Ia presente invención comprende: un cuerpo que define un cabezal y un mango; unos primer y segundo asientos situados en dicho cabezal para soportar respectivamente unas primera y segunda placas de metal duro dispuestas Ia una sobre Ia otra con unos respectivos cantos cruzados; medios de articulación de cada una de dichas primera y segunda placas de metal duro a dichos primer y segundo asientos y que comprenden un primer tetón ó vastago y un primer agujero, acoplados por inserción; una entalladura en dicho cabezal a través de Ia cual es accesible una zona de cruce de dichos cantos cruzados de las primera y segunda placas de metal duro, constituyendo dicha zona de cruce al menos una zona de afilado; y una cubierta adaptada para ser acoplada de manera liberable al cabezal y configurada para retener las primera y segunda placas de metal duro en el cabezal.The tool for manually sharpening and polishing cutting tools, multifunctional, according to the present invention comprises: a body defining a head and a handle; first and second seats located in said head to respectively support first and second hard metal plates arranged one on the other with respective crossed edges; articulation means of each of said first and second hard metal plates to said first and second seats and comprising a first stud or rod and a first hole, coupled by insertion; a notch in said head through which a crossing zone of said crossed edges of the first and second hard metal plates is accessible, said crossing zone constituting at least one sharpening zone; and a cover adapted to be releasably coupled to the head and configured to retain the first and second hard metal plates in the head.
Dichos primer y segundo asientos proporcionan un espacio suficiente para permitir a las primera y segunda placas de metal duro pivotar en direcciones opuestas alrededor de los respectivos primeros tetones o vastagos insertados en los primeros agujeros, estando dispuesto al menos un elemento elástico para empujar las primera y segunda placas de metal duro Ia una hacia Ia otra, por Io que las primera y segunda placas de metal duro pivotan contra el empuje de dicho elemento elástico, que es al menos uno, como consecuencia de una presión ejercida por una herramienta de corte sobre dicha zona de cruce de los cantos cruzados de las primera y segunda placas de metal duro. Según una primera variante de Ia presente invención, el útil comprende además, para cada una de dicha placas de metal duro, unos medios de guía y tope integrados por un segundo tetón o vastago que está acoplado por inserción en un correspondiente segundo agujero alargado y/o agrandado, por Io que dicho acoplamiento de dichos segundos agujeros alargados y/o agrandados y tetones permite un deslizamiento relativo cuando las primera y segunda placas de metal duro pivotan.Said first and second seats provide sufficient space to allow the first and second hard metal plates to pivot in opposite directions around the respective first studs or stems inserted in the first holes, at least one elastic element being arranged to push the first and second hard metal plates Ia towards each other, so that the first and second hard metal plates pivot against the thrust of said elastic element, which is at least one, as a consequence of a pressure exerted by a cutting tool on said Crossing area of the crossed edges of the first and second hard metal plates. According to a first variant of the present invention, the tool further comprises, for each of said hard metal plates, guide and stop means integrated by a second stud or rod which is coupled by insertion in a corresponding second elongated hole and / or enlarged, so said coupling of said second elongated and / or enlarged holes and studs allows relative sliding when the first and second hard metal plates pivot.
Se comprenderá que los tetones o vastagos pueden sobresalir de los asientos para insertarse en agujeros de las placas, o pueden sobresalir de las placas para insertarse en agujeros de los asientos, o combinaciones de los mismos, o los vastagos pueden ser piezas separadas insertadas en agujeros de los asientos y en agujeros de las placas.It will be understood that the lugs or stems may protrude from the seats to be inserted into holes in the plates, or they may protrude from the plates to be inserted in holes in the seats, or combinations thereof, or the stems may be separate pieces inserted in holes. of the seats and in holes of the plates.
En una versión preferida de ejecución de Ia invención el útil para afilar y pulir manualmente herramientas de corte, multifuncional, de acuerdo con Ia presente invención comprende, como es conocido, un cuerpo que define un cabezal y un mango, con unos primer y segundo asientos situados en dicho cabezal para soportar respectivamente unas primera y segunda placas de metal duro dispuestas Ia una sobre Ia otra con unos respectivos cantos cruzados. De cada uno de dichos primer y segundo asientos sobresalen unos primer y segundo tetones que van insertados en unos correspondientes primer y segundo agujeros formados en cada una de dichas primera y segunda placas de metal duro. En dicho cabezal está formada una entalladura a través de Ia cual es accesible Ia zona de cruce de dichos cantos cruzados de las primera y segunda placas de metal duro, constituyendo dicha zona de cruce una zona de afilado y pulido. El cabezal incluye una cubierta adaptada para ser acoplada de manera liberable al cabezal y configurada para retener las primera y segunda placas de metal duro en el cabezal. El útil de Ia presente invención está caracterizado porque los mencionados segundos agujeros de las primera y segunda placas de metal duro son alargados y/o agrandados, y porque incluye al menos un elemento elástico dispuesto para empujar las primera y segunda placas de metal duro Ia una hacia Ia otra. Con ello, las primera y segunda placas de metal duro son aptas para pivotar en direcciones opuestas alrededor de los respectivos primeros tetones insertados en los primeros agujeros contra el empuje de dicho elemento elástico, que es al menos uno, mientras los segundos agujeros alargados y/o agrandados deslizan sobre los correspondientes segundos tetones como consecuencia de una presión ejercida por una herramienta de corte sobre dicha zona de cruce de los cantos cruzados de las primera y segunda placas de metal duro.In a preferred embodiment of the invention, the tool for sharpening and polishing cutting tools, multifunctional, according to the present invention comprises, as is known, a body defining a head and a handle, with first and second seats located in said head to respectively support first and second hard metal plates arranged one on the other with respective crossed edges. From each of said first and second seats, first and second studs protrude, which are inserted in corresponding first and second holes formed in each of said first and second hard metal plates. In said head a notch is formed through which the crossing area of said crossed edges of the first and second hard metal plates is accessible, said crossing area constituting a zone of sharpening and polishing. The head includes a cover adapted to be releasably coupled to the head and configured to retain the first and second hard metal plates in the head. The tool of the present invention is characterized in that said second holes of the first and second hard metal plates are elongated and / or enlarged, and because it includes at least one elastic element arranged to push the first and second hard metal plates Ia a towards the other. With this, the first and second hard metal plates are suitable for pivoting in opposite directions around the respective first studs inserted in the first holes against the thrust of said elastic element, which is at least one, while the second elongated holes and / or enlarged slide over the corresponding second lugs as a result of a pressure exerted by a cutting tool on said crossing area of the crossed edges of the first and second hard metal plates.
Preferiblemente, los primeros tetones o vastagos que actúan como pivotes sobre los que giran las correspondientes primera y segunda placas de metal duro están situados más cerca de Ia entrada de Ia entalladura que el punto de cruce y que los segundos tetones, los cuales actúan como guía y límite de recorrido para los giros de las correspondientes primera y segunda placas de metal duro. Por esta razón, cuando una herramienta de corte es presionada sobre dicha zona de cruce, las primera y segunda placas de metal duro giran o basculan contra el empuje del elemento elástico de manera que el ángulo formado por los respectivos cantos cruzados se hace más agudo, con Io que los cantos de las placas de metal duro aumentan el contacto con los flancos del filo de Ia herramienta de corte a afilar. Así, cuanta más presión se ejerce con el filo de Ia herramienta de corte sobre Ia zona de cruce, más agudo se obtiene el filo afilado. Así, con el sistema de afilado de placas basculantes y en función de Ia fuerza o presión ejercida por Ia herramienta a afilar, las plaquetas se adaptan a los diferentes contornos del cuchillo o herramienta a afilar.Preferably, the first studs or rods that act as pivots on which the corresponding first and second carbide plates rotate are located closer to the entrance of the notch than the crossing point and that the second studs, which act as a guide and travel limit for the turns of the corresponding first and second hard metal plates. For this reason, when a cutting tool is pressed on said crossing area, the first and second hard metal plates rotate or swing against the thrust of the elastic element so that the angle formed by the respective crossed edges becomes more acute, so that the edges of the hard metal plates increase the contact with the flanks of the cutting edge of the cutting tool to be sharpened. Thus, the more pressure is exerted with the cutting tool edge on the crossing area, the sharper the sharp edge is obtained. Thus, with the sharpening system of tilting plates and depending on the force or pressure exerted by the tool to be sharpened, the platelets adapt to the different contours of the knife or tool to be sharpened.
Las primera y segunda placas de metal duro tienen sus respectivos cantos cruzados curvados de forma convexa, Io que aumenta el efecto de agudización del ángulo en Ia zona de cruce. Hay que señalar que en este caso el ángulo en Ia zona de cruce corresponde al ángulo que forman las tangentes a los cantos curvados convexos cruzados en Ia zona de cruce. Preferiblemente, cada una de las primera y segunda placas de metal duro tiene un contorno simétrico respecto a un plano longitudinal centrado en los respectivos primer y segundo agujeros. Según un ejemplo de realización, el mencionado contorno de cada una de las primera y segunda placas de metal duro es aproximadamente ovalado y opcionalmente tiene una porción truncada en un extremo longitudinal más próximo al respectivo segundo agujero, mientras que el extremo más próximo al respectivo primer agujero es redondeado. Esta configuración permite que las primera y segunda placas de metal duro sean intercambiadas de posición con el fin de aprovechar al máximo los cantos de las mismas susceptibles de cruzarse en Ia zona de cruce. Además, Ia zona de cruce experimenta unos desplazamientos debidos a Ia basculación de las primera y segunda placas de metal duro durante el afilado y/o pulido, Io que proporciona un mejor aprovechamiento del material de los cantos cruzados de las placas de metal duro al permitir un menor desgaste de las placas de metal duro ya que no siempre se actúa sobre el mismo punto de afilado. Por Io tanto hay un mayor aprovechamiento de las aristas de afilado o pulido.The first and second hard metal plates have their respective curved cross edges convexly, which increases the effect of sharpening the angle in the crossing area. It should be noted that in this case the angle in the crossing area corresponds to the angle formed by the tangents to the curved convex edges crossed in the crossing area. Preferably, each of the first and second hard metal plates has a symmetrical contour with respect to a longitudinal plane centered on the respective first and second holes. According to an exemplary embodiment, said contour of each of the first and second hard metal plates is approximately oval and optionally has a truncated portion at a longitudinal end closer to the respective second hole, while the end closest to the respective first hole is rounded. This configuration allows the first and second hard metal plates to be interchanged in order to make the most of their edges that can be crossed in the crossing area. In addition, the crossing zone experiences displacements due to the tilting of the first and second hard metal plates during sharpening and / or polishing, which provides a better use of the material of the cross edges of the hard metal plates by allowing less wear of the hard metal plates since it does not always act on the Same sharpening point. Therefore, there is a greater use of sharpening or polishing edges.
Opcionalmente, cada una de las primera y segunda placas de metal duro tiene una arista redondeada en Ia confluencia de una primera cara mayor con un canto perimétrico que define dicho canto curvado convexo, y una arista viva en Ia confluencia de una segunda cara mayor, opuesta, con el mencionado canto. En una situación operativa, las primera y segunda placas de metal duro están dispuestas con Ia primera cara de Ia una sobre Ia segunda cara de Ia otra, por Io que Ia mencionada arista redondeada de una de las placas está adyacente a dicha arista viva de Ia otra de las placas. Con ello, cuando el filo de una herramienta de corte es presionada contra Ia zona de cruce y desplazado a Io largo de una dirección en un sentido contra las dos aristas vivas de los cantos cruzados, las aristas vivas producen un afilado del filo, y cuando a continuación el filo es desplazado a Io largo de dicha dirección en sentido opuesto, contra las dos aristas redondeadas, las aristas redondeadas producen un afinado del filo previamente afilado. En el cabezal, Ia entalladura está orientada hacia un primer lado de dicho mango, en donde el útil presenta un ensanchamiento. Esta configuración hace que el filo de Ia herramienta de corte que está siendo afilada no esté dirigida hacia Ia mano que agarra el útil por el mango, sino perpendicular al mismo, Io que disminuye el riesgo de cortes y accidentes. Además, el cuerpo alargado tiene una parte inferior plana que es apta para ser apoyada sobre una base plana, tal como una mesa o similar. Esta parte inferior plana tiene un resalto apto para hacer tope contra un canto de dicha base plana y con ello resistir Ia presión ejercida por una herramienta de corte sobre Ia zona de cruce. Esta configuración disminuye el esfuerzo a realizar y aumenta Ia seguridad en el manejo del útil.Optionally, each of the first and second hard metal plates has a rounded edge at the confluence of a first major face with a perimeter edge defining said convex curved edge, and a living edge at the confluence of a second, opposite major face , with the aforementioned song. In an operative situation, the first and second hard metal plates are arranged with the first face of the one on the second face of the other, whereby the said rounded edge of one of the plates is adjacent to said living edge of the Another of the plates. With this, when the edge of a cutting tool is pressed against the crossing area and moved along one direction in one direction against the two living edges of the crossed edges, the living edges produce a sharpness of the edge, and when then the edge is displaced along said direction in the opposite direction, against the two rounded edges, the rounded edges produce a sharpening of the previously sharpened edge. In the head, the notch is oriented towards a first side of said handle, where the tool has a widening. This configuration means that the cutting tool edge that is being sharpened is not directed towards the hand that grabs the tool by the handle, but perpendicular to it, which reduces the risk of cuts and accidents. In addition, the elongated body has a flat bottom that is suitable for being supported on a flat base, such as a table or the like. This flat lower part has a projection suitable for abutting against a edge of said flat base and thereby resisting the pressure exerted by a cutting tool on the crossing area. This configuration reduces the effort to be made and increases the safety in the handling of the tool.
El cabezal comprende, en un segundo lado del mango, opuesto a dicho primer lado, un acoplamiento adaptado para recibir y sujetar de manera liberable un accesorio tal como, por ejemplo, un conjunto de afilado con una primera placa de afilar, un abrelatas, o un conjunto de pelar entre otros. El accesorio incluye una o más lengüetas elásticas que enclavan en unas correspondientes configuraciones de retención del acoplamiento. Para guiar Ia inserción del accesorio y resistir un par de giro del accesorio respecto al mango, el acoplamiento comprende unas configuraciones de guía que cooperan con unas correspondientes configuraciones de guía existentes en una porción de acoplamiento del accesorio.The head comprises, on a second side of the handle, opposite said first side, a coupling adapted to receive and releasably hold an accessory such as, for example, a sharpening assembly with a first sharpening plate, a can opener, or a peeling set among others. The accessory includes one or more elastic tabs that engage in corresponding coupling retention configurations. To guide the insertion of the accessory and resist a torque of the accessory with respect to the handle, the coupling comprises guide configurations that cooperate with corresponding guide configurations existing in a coupling portion of the accessory.
El mango en una posible realización incluye un alojamiento que se extiende a Io largo del mismo. Este alojamiento tiene, en un extremo del mango opuesto al cabezal, una abertura para recibir insertado un cajón o bandeja capaz de albergar al menos un complemento, tal como una punta de herramienta, una piedra de afilar japonesa, un juego de puntas de herramienta, o un utensilio de menaje tal como un útil cortapiñas o una cuchara. Este cajón o bandeja tiene, junto a un extremo exterior del mismo, al menos una lengüeta elástica capaz de encajar y quedar retenida en una configuración de retención del mango, y una pared final capaz de cerrar dicha abertura del alojamiento cuando el cajón o bandeja está alojado en el mango. El cajón o bandeja tiene además un asiento con una abertura en dicha pared final para sujetar Ia punta de herramienta en situación operativa. Opcionalmente, el cajón o bandeja tiene además una cavidad con una abertura en dicha pared final para recibir insertada una porción trasera de una segunda placa de afilar, de manera que una porción delantera de Ia misma sobresale hacia fuera desde Ia pared final. Tanto Ia primera placa de afilar mencionada más arriba como esta segunda placa de afilar están sujetadas y retenidas en sus respectivas cavidades por unos clips elásticos que tienen unas partes exteriores capaces de presionar contra unas superficies interiores de Ia cavidad y unas partes interiores capaces de presionar contra unas superficies exteriores de las placas de amolar.The handle in a possible embodiment includes a housing that extends along it. This housing has, at one end of the handle opposite the head, an opening to receive inserted a drawer or tray capable of housing at least one complement, such as a tool tip, a Japanese whetstone, a set of tool tips, or a utensil such as a useful clipper or a spoon. This drawer or tray has, next to an outer end thereof, at least one elastic tongue capable of engaging and being retained in a handle retention configuration, and an end wall capable of closing said opening of the housing when the drawer or tray is housed in the handle. The drawer or tray also has a seat with an opening in said final wall to hold the tool tip in an operative situation. Optionally, the drawer or tray also has a cavity with an opening in said final wall to receive inserted a rear portion of a second sharpening plate, so that a front portion thereof protrudes outwardly from the final wall. Both the first sharpening plate mentioned above and this second sharpening plate are held and held in their respective cavities by elastic clips that have outer parts capable of pressing against interior surfaces of the cavity and inner parts capable of pressing against outer surfaces of the grinding plates.
Breve descripción de los dibujos Las anteriores y otras ventajas y características se comprenderán más plenamente a partir de Ia siguiente descripción detallada de un ejemplo de realización con referencia a los dibujos adjuntos, en los que: Ia Fig. 1 es una vista en perspectiva en explosión de un útil multifuncional para afilar y pulir manualmente herramientas de corte, de acuerdo con un ejemplo de realización de Ia presente invención, con un accesorio que constituye un conjunto de afilado instalado en un acoplamiento del útil; Ia Fig. 2 es una vista en perspectiva de un detalle ampliado que muestra el montaje de unas primera y segunda placas de metal duro en un cabezal del útil de Ia Fig. 1 ;BRIEF DESCRIPTION OF THE DRAWINGS The foregoing and other advantages and features will be more fully understood from the following detailed description of an exemplary embodiment with reference to the attached drawings, in which: Fig. 1 is an exploded perspective view of a multifunctional tool for sharpening and polishing cutting tools manually, according to an embodiment of the present invention, with an accessory that constitutes a sharpening assembly installed in a coupling of the Useful; Fig. 2 is a perspective view of an enlarged detail showing the assembly of first and second hard metal plates in a head of the tool of Fig. 1;
Ia Fig. 3 es una vista en perspectiva ampliada de una de dichas placas de metal duro; las Figs. 4 y 5 son vistas parciales en planta que muestran el funcionamiento de una zona de afilado y pulido del cabezal antes y durante una operación de afilado y/o pulido;Fig. 3 is an enlarged perspective view of one of said hard metal plates; Figs. 4 and 5 are partial plan views showing the operation of a sharpening and polishing area of the head before and during a sharpening and / or polishing operation;
Ia Fig. 6 es una vista en planta del útil de Ia Fig. 1 ; las Figs. 7, 8 y 9 son vistas en sección transversal tomadas por las líneas VII-VII, VIII-VIII y IX-IX de Ia Fig. 6, respectivamente;Fig. 6 is a plan view of the tool of Fig. 1; Figs. 7, 8 and 9 are cross-sectional views taken along lines VII-VII, VIII-VIII and IX-IX of Fig. 6, respectively;
Ia Fig. 10 es una vista parcial ampliada en sección transversal tomada por Ia línea X-X de Ia Fig. 6;Fig. 10 is an enlarged partial view in cross section taken along line X-X of Fig. 6;
Ia Fig. 11 es una vista trasera del útil de Ia Fig. 1 mostrando el extremo del mango más alejado del cabezal; Ia Fig. 12 es una vista parcial en planta que muestra unos medios de montaje alternativos de las primera y segunda placas de metal duro en el cabezal; las Figs. 13 y 14 son vistas en planta y de perfil de un útil como el de Ia Fig. 1 en el que el accesorio que constituye un conjunto de afilado está sustituido por un accesorio abrelatas;Fig. 11 is a rear view of the tool of Fig. 1 showing the end of the handle furthest from the head; Fig. 12 is a partial plan view showing alternative mounting means of the first and second hard metal plates in the head; Figs. 13 and 14 are plan and profile views of a tool such as that of Fig. 1 in which the accessory constituting a sharpening assembly is replaced by a can opener accessory;
Ia Fig. 15 es una vista en perspectiva de un detalle ampliado que muestra el accesorio abrelatas en disposición de ser instalado en el acoplamiento del útil;Fig. 15 is a perspective view of an enlarged detail showing the can opener accessory ready to be installed in the tool coupling;
Ia Fig. 16 es una vista en perspectiva de un detalle ampliado que muestra un accesorio que constituye un conjunto de pelar alternativo en disposición de ser instalado en el acoplamiento del útil; yFig. 16 is a perspective view of an enlarged detail showing an accessory that constitutes an alternative stripping assembly ready to be installed in the coupling of the tool; Y
Las Figs. 17 a 20 son vistas que ilustran varias formas de sujeción del útil evidenciando Ia ergonomía del mismo. Descripción detallada de unos ejemplos de realizaciónFigs. 17 to 20 are views that illustrate various ways of holding the tool, demonstrating its ergonomics. Detailed description of some embodiments
Haciendo en primer lugar referencia a Ia Fig. 1 , en ella se muestra en explosión un útil multifuncional para afilar y pulir manualmente herramientas de corte, el cual comprende un cuerpo 1 que define un cabezal 3 en un extremo y un mango 2 que se extiende desde el cabezal 3 hasta el otro extremo. El mencionado cabezal 3 presenta un ensanchamiento en un primer lado de dicho mango 2 en el que está formada una entalladura 10 orientada, aproximadamente a 90 grados respecto a Ia dirección longitudinal del mango 2. En el cabezal 3, a lado y lado de Ia citada entalladura 10, están formados unos primer y segundo asientos 4a y 4b sobre los cuales están montadas respectivamente unas primera y segunda placas de metal duro 5a y 5b, iguales entre sí, tal como se muestra mejor en Ia Fig. 2.Referring firstly to Fig. 1, there is an exploding multifunctional tool for manually sharpening and polishing cutting tools, which comprises a body 1 defining a head 3 at one end and a handle 2 extending from head 3 to the other end. Said head 3 has a widening on a first side of said handle 2 in which an oriented groove 10 is formed, approximately 90 degrees with respect to the longitudinal direction of the handle 2. In the head 3, side and side of said Notch 10, first and second seats 4a and 4b are formed on which first and second carbide plates 5a and 5b are mounted respectively, equal to each other, as best shown in Fig. 2.
Cada una de las primera y segunda placas de metal duro 5a y 5b (véase a modo de ejemplo Ia primera placa 5a ilustrada en Ia Fig. 3) tiene una primera cara 43 mayor, una segunda cara 44 mayor, opuesta y un canto perimétrico 45 que define un contorno, y tiene formados un primer agujero δa, 8b circular y un segundo agujero 9a, 9b alargado de trayectoria curvada con su centro en dicho primer agujero 8a, 8b circular. El mencionado contorno es simétrico respecto a un plano longitudinal centrado en los respectivos primer y segundo agujeros 8a, 8b y 9a, 9b. En el cabezal 3, los primer y segundo asientos 4a, 4b están a diferentes niveles, de manera que las primera y segunda placas de metal duro 5a y 5b quedan dispuestas Ia una sobre Ia otra y con unos respectivos cantos cruzados. A través de Ia mencionada entalladura 10 formada en el cabezal 3 es accesible Ia zona de cruce de dichos cantos cruzados de las primera y segunda placas de metal duro 5a y 5b, Ia cual constituye una zona de afilado y pulido.Each of the first and second hard metal plates 5a and 5b (see, for example, the first plate 5a illustrated in Fig. 3) has a larger first face 43, a larger, opposite second face 44 and a perimeter edge 45 defining an outline, and having a first circular hole δa, 8b and a second elongated hole 9a, 9b of curved path with its center in said first circular hole 8a, 8b formed. The mentioned contour is symmetrical with respect to a longitudinal plane centered in the respective first and second holes 8a, 8b and 9a, 9b. In head 3, the first and second seats 4a, 4b are at different levels, so that the first and second hard metal plates 5a and 5b are arranged one on the other and with respective crossed edges. Through the aforementioned notch 10 formed in the head 3, the crossing area of said crossed edges of the first and second hard metal plates 5a and 5b is accessible, which constitutes a sharpening and polishing zone.
En el ejemplo de realización mostrado, el contorno de cada una de las primera y segunda placas de metal duro 5a y 5b es aproximadamente ovalado, con una porción truncada en un extremo longitudinal más próximo al respectivo segundo agujero 9a, 9b, por Io que los respectivos cantos cruzados son curvados de forma convexa. La mencionada porción convexa es opcional. La confluencia de Ia mencionada primera cara 43 con dicho canto perimétrico 45 (Fig. 3) forma una arista redondeada 37 y Ia confluencia de dicha segunda cara 44 con el canto perimétrico 45 forma una arista viva 38. La diferencia de nivel entre los primer y segundo asientos 4a, 4b es igual al grosor de las placas, y las primera y segunda placas de metal duro 5a y 5b están dispuestas de manera que Ia primera cara 43 de una de ellas queda adosada a Ia segunda cara 44 de Ia otra, por Io que dicha arista redondeada 37 de una de las placas 5b está adyacente a dicha arista viva 38 de Ia otra de las placas 5a. Las primeras caras 43 de ambas primera y segunda placas de metal duro 5a y 5b están apoyadas sobre sus respectivos primer y segundo asientos 4a, 4b en el cabezal 3 (véase también Ia Fig. 10).In the exemplary embodiment shown, the contour of each of the first and second hard metal plates 5a and 5b is approximately oval, with a truncated portion at a longitudinal end closer to the respective second hole 9a, 9b, so that respective crossed edges are convexly curved. The mentioned convex portion is optional. The confluence of said first face 43 with said perimeter edge 45 (Fig. 3) forms a rounded edge 37 and the confluence of said second face 44 with the perimeter edge 45 forms a living edge 38. The difference in level between the first and second seats 4a, 4b is equal to the thickness of the plates, and the first and second hard metal plates 5a and 5b are arranged so that the first face 43 of one of them is attached to the second face 44 of The other, whereby said rounded edge 37 of one of the plates 5b is adjacent to said living edge 38 of the other of the plates 5a. The first faces 43 of both first and second hard metal plates 5a and 5b are supported on their respective first and second seats 4a, 4b in the head 3 (see also Fig. 10).
Desde cada uno de los primer y segundo asientos 4a y 4b sobresalen unos primer y segundo tetones 6a, 6b y 7a, 7b adaptados para quedar insertados en los correspondientes primer y segundo agujeros 8a, 8b y 9a, 9b formados en cada una de las primera y segunda placas de metal duro 5a y 5b. Sobre las primera y segunda placas de metal duro 5a y 5b, una vez instaladas en los primer y segundo asientos 4a y 4b, va dispuesta una cubierta 11 adaptada para ser acoplada de manera liberable al cabezal 3 por medio de una lengüeta elástica 39 capaz de encajar y quedar retenida en un configuración de retención 40 del cabezal 3 (véase también Ia Fig. 7) y de unas aletas 46 formadas en Ia cubierta 11 capaces de quedar insertadas en unos correspondientes huecos 47 del cabezal 3 (véase también Ia Fig. 8). Esta cubierta 11 tiene unos nervios 48 configurados para apoyarse sobre las primera y segunda placas de metal duro 5a y 5b con el fin de retenerlas en el cabezal 3, tal como se muestra en Ia Fig. 7. Para permitir desenclavar Ia lengüeta elástica 39 de Ia configuración de retención 40 Ia cubierta 11 incluye un área presionable 49 capaz de desviar Ia lengüeta elástica 39 al ser presionada (Fig. 7). Tal como se muestra en el ejemplo de realización de las Figs. 4 y 5, el cabezal 3 incluye unos elementos elásticos 12a, 12b constituidos por sendas piezas de un material elastómero dispuestas entre las respectivas primera y segunda placas de metal duro 5a y 5b y unas superficies del cabezal 3 para empujar las primera y segunda placas de metal duro 5a y 5b Ia una hacia Ia otra. En virtud de Ia configuración alargada de los mencionados segundos agujeros 9a, 9b de las primera y segunda placas de metal duro 5a y 5b, las primera y segunda placas de metal duro 5a y 5b son aptas para pivotar en direcciones opuestas alrededor de los respectivos primeros tetones 6a, 6b insertados en los primeros agujeros 8a, 8b, mientras los segundos agujeros 9a, 9b alargados y/o agrandados deslizan sobre los correspondientes segundos tetones 7a, 7b como consecuencia de una presión ejercida por una herramienta de corte H sobre dicha zona de cruce de los cantos cruzados de las primera y segunda placas de metal duro 5a y 5b. Se observará que los primeros tetones 6a, 6b y correspondientes primeros agujeros 8a, 8b están situados más cerca de Ia entrada de dicha entalladura 10 que el punto de cruce y que los segundos tetones 7a, 7b y correspondientes segundos agujeros 9a, 9b. Con ello, el giro de las primera y segunda placas de metal duro 5a y 5b como consecuencia de una presión ejercida por una herramienta de corte H sobre Ia zona de cruce tiende a cerrar esta zona de cruce agudizando el ángulo formado por los cantos cruzados de las primera y segunda placas de metal duro 5a y 5b. Alternativamente, los segundos agujeros 9a, 9b podrían ser simplemente agrandados para permitir el movimiento de las primera y segunda placas de metal duro 5a y 5b en relación con los segundos tetones 7a, 7b.From each of the first and second seats 4a and 4b, first and second lugs 6a, 6b and 7a, 7b are adapted to be inserted in the corresponding first and second holes 8a, 8b and 9a, 9b formed in each of the first and second hard metal plates 5a and 5b. On the first and second hard metal plates 5a and 5b, once installed in the first and second seats 4a and 4b, a cover 11 adapted to be releasably coupled to the head 3 is arranged by means of an elastic tongue 39 capable of fit and be retained in a retention configuration 40 of the head 3 (see also Fig. 7) and of fins 46 formed in the cover 11 capable of being inserted in corresponding recesses 47 of the head 3 (see also Fig. 8 ). This cover 11 has ribs 48 configured to rest on the first and second hard metal plates 5a and 5b in order to retain them in the head 3, as shown in Fig. 7. To allow unlocking the elastic tongue 39 of The retention configuration 40 Ia cover 11 includes a pressable area 49 capable of deflecting the elastic tongue 39 when pressed (Fig. 7). As shown in the embodiment example of Figs. 4 and 5, the head 3 includes elastic elements 12a, 12b constituted by two pieces of an elastomeric material arranged between the respective first and second hard metal plates 5a and 5b and surfaces of the head 3 to push the first and second plates of hard metal 5a and 5b Ia towards the other. By virtue of the elongated configuration of said second holes 9a, 9b of the first and second hard metal plates 5a and 5b, the first and second hard metal plates 5a and 5b are able to pivot in opposite directions around the respective first studs 6a, 6b inserted in the first holes 8a, 8b, while the second elongated and / or enlarged second holes 9a, 9b slide over the corresponding second lugs 7a, 7b as a result of a pressure exerted by a cutting tool H on said crossing area of the crossed edges of the first and second hard metal plates 5a and 5b. It will be observed that the first studs 6a, 6b and corresponding first holes 8a, 8b are located closer to the entrance of said notch 10 than the crossing point and that the second studs 7a, 7b and corresponding second holes 9a, 9b. With this, the rotation of the first and second hard metal plates 5a and 5b as a result of a pressure exerted by a cutting tool H on the crossing area tends to close this crossing area by sharpening the angle formed by the crossed edges of the first and second hard metal plates 5a and 5b. Alternatively, the second holes 9a, 9b could simply be enlarged to allow the movement of the first and second hard metal plates 5a and 5b in relation to the second studs 7a, 7b.
Tal como se muestra mejor en Ia Fig. 7, el cuerpo alargado 1 tiene una parte inferior plana 13 apta para ser apoyada sobre una base plana P y dicha parte inferior plana 13 tiene un resalto 41 apto para hacer tope contra un borde M de dicha base plana P y con ello resistir dicha presión ejercida por una herramienta de corte H sobre Ia zona de cruce.As best shown in Fig. 7, the elongated body 1 has a flat bottom part 13 suitable for being supported on a flat base P and said flat bottom part 13 has a shoulder 41 suitable for abutting against an edge M of said flat base P and thereby resist said pressure exerted by a cutting tool H on the crossing area.
En Ia Fig. 12 se muestra un ejemplo de realización alternativo que comprende un fleje metálico 50 dispuesto para empujar las primera y segunda placas de metal duro 5a y 5b Ia una hacia Ia otra en vez de las mencionadas piezas de material elastómero. En otro ejemplo de realización alternativo, no mostrado, Ia función de empujar las primera y segunda placas de metal duro 5a y 5b Ia una hacia Ia otra Ia realiza un muelle de torsión, o bien un par de muelles a compresión, u otro medio, en sí conocido y funcionalmente equivalente.In Fig. 12 an alternative embodiment example is shown comprising a metal strip 50 arranged to push the first and second hard metal plates 5a and 5b Ia towards each other instead of the mentioned elastomeric material parts. In another alternative embodiment, not shown, the function of pushing the first and second hard metal plates 5a and 5b towards each other makes a torsion spring, or a pair of compression springs, or other means, itself known and functionally equivalent.
En un segundo lado del mango 2 opuesto a dicho primer lado hacia el que está orientada Ia entalladura 10, el cabezal 3 comprende un acoplamiento 14 adaptado para recibir y sujetar de manera liberable un accesorio. En el ejemplo de realización mostrado en las Figs. 1 a 11 el mencionado accesorio es un conjunto de afilado 15 especialmente adaptado para afilar tijeras, aunque es aplicable a otro tipo de filos, y se han previsto otros accesorios tales como un abrelatas 16 y un conjunto de pelar 42, los cuales serán descritos más abajo. Todos los accesorios son intercambiables, y para ello el mencionado acoplamiento 14 del cabezal 3 comprende un alojamiento 17 para recibir una porción de acoplamiento 18 común en cualquiera de dichos accesorios, y al menos una configuración de retención 19 adaptada para recibir y retener al menos una lengüeta elástica 20 del accesorio. Además, en dicho alojamiento 17 están dispuestas unas configuraciones de guía 21 para cooperar con unas correspondientes configuraciones de guía 22 de dicha porción de acoplamiento 18 del accesorio para guiar Ia inserción del accesorio y resistir un par de giro del accesorio respecto al mango 2 cuando el accesorio está acoplado en dicho acoplamiento 14. Ventajosamente, las mencionadas configuraciones de guía 22 son mutuamente paralelas y están Io más distanciadas entre sí posible en un plano paralelo a Ia dirección longitudinal del mango 2 (Fig. 14). Con ello, las configuraciones de guía 22 definen un plano de inserción del accesorio al alojamiento 17 del cabezal 3. Cada accesorio incluye además un área presionable 55 capaz de desviar Ia lengüeta elástica 20 al ser presionada (Fig.On a second side of the handle 2 opposite said first side towards which the notch 10 is oriented, the head 3 comprises a coupling 14 adapted to receive and detachably hold an accessory. In the exemplary embodiment shown in Figs. 1 to 11 the aforementioned accessory is a sharpening assembly 15 specially adapted for sharpening scissors, although it is applicable to other types of edges, and other accessories such as a can opener 16 and a stripping set 42, which will be described below. All accessories are interchangeable, and for this purpose said coupling 14 of head 3 comprises a housing 17 for receiving a coupling portion 18 common in any of said accessories, and at least one retention configuration 19 adapted to receive and retain at least one elastic tongue 20 of the accessory. In addition, in said housing 17 guide configurations 21 are arranged to cooperate with corresponding guide configurations 22 of said coupling portion 18 of the accessory to guide the insertion of the accessory and resist a torque of the accessory relative to the handle 2 when the accessory is coupled in said coupling 14. Advantageously, said guide configurations 22 are mutually parallel and are as far apart as possible in a plane parallel to the longitudinal direction of handle 2 (Fig. 14). With this, the guide configurations 22 define an insertion plane of the accessory to the housing 17 of the head 3. Each accessory also includes a pressable area 55 capable of deflecting the elastic tongue 20 when pressed (Fig.
8).8).
El accesorio que consiste en un conjunto de afilado 15 está ilustrado en las Figs. 1 y 2 y en las Figs. 6 a 9. El conjunto de afilado 15 comprende un soporte 23 que incluye dicha porción de acoplamiento 18, un par de dichas lengüetas elásticas 20 con sus correspondientes áreas presionables 55, y dichas configuraciones de guía 22. El mencionado soporte 23 tiene formada una cavidad 25 adaptada para alojar una porción trasera de una primera placa de afilar 24 que tiene una porción delantera que sobresale hacia fuera de dicho soporte 23. Para sujetar y retener Ia primera placa de afilar 24 en Ia cavidad 25 están dispuestos unos primeros clips elásticos 26 aproximadamente en forma de "U" que tienen unas partes exteriores capaces de presionar contra unas superficies interiores enfrentadas de dicha cavidad 25 y unas partes interiores capaces de presionar al mismo tiempo contra unas superficies exteriores opuestas de dicha primera placa de afilar 24, tal como se muestra en Ia Fig. 9. Junto a dicho acoplamiento 14, el cuerpo 1 del útil presenta una protuberancia que define una plano inclinado 58 (Fig. 6) con un grado de inclinación predeterminando en relación con un canto exterior de Ia primera placa de afilar 24, sirviendo dicho plano inclinado como apoyo para una herramienta de corte, en especial una tijera, a afilar.The accessory consisting of a sharpening assembly 15 is illustrated in Figs. 1 and 2 and in Figs. 6 to 9. The sharpening assembly 15 comprises a support 23 that includes said coupling portion 18, a pair of said elastic tongues 20 with their corresponding pressable areas 55, and said guide configurations 22. Said support 23 has a cavity formed 25 adapted to accommodate a rear portion of a first sharpening plate 24 having a front portion protruding out of said support 23. To hold and retain the first sharpening plate 24 in the cavity 25 approximately first elastic clips 26 are arranged approximately in the form of "U" having outer parts capable of pressing against facing inner surfaces of said cavity 25 and inner parts capable of pressing at the same time against opposite outer surfaces of said first sharpening plate 24, as shown in Fig. 9. Next to said coupling 14, the body 1 of the tool has a protuberance that defines an inc plane lined 58 (Fig. 6) with a predetermined degree of inclination in relation to an outer edge of the first sharpening plate 24, said inclined plane serving as a support for a cutting tool, especially a scissors, to be sharpened.
En relación con las Figs. 13, 14 y 15 se describe a continuación el accesorio que consiste en un abrelatas 16, el cual comprende un soporte 51 que incluye, como todos los accesorios citados, dicha porción de acoplamiento 18, un par de dichas lengüetas elásticas 20 con sus correspondientes áreas presionables 55, y dichas configuraciones de guía 22. En este ejemplo de realización el abrelatas 16 es de tipo giratorio y comprende un eje de giro 56 perpendicular a un plano de inserción del accesorio en dicho alojamiento 17 definido por las configuraciones de guía 21. Por consiguiente, el eje de giro 56 del abrelatas 16 es perpendicular a Ia dirección longitudinal del mango 2. El mencionado eje de giro 56 está conectado a un pomo de accionamiento 52 situado en una posición desplazada hacia un lado respecto al cuerpo 1 de manera que puede ser agarrado y accionado cómodamente sin interferencias (Figs. 14, 15 y 20).In relation to Figs. 13, 14 and 15, the accessory consisting of a can opener 16 is described below, which comprises a support 51 which includes, like all the aforementioned accessories, said coupling portion 18, a pair of said elastic tongues 20 with their corresponding areas pressable 55, and said guide configurations 22. In this exemplary embodiment the can opener 16 is of the rotary type and comprises a rotation axis 56 perpendicular to an insertion plane of the accessory in said housing 17 defined by the guide configurations 21. By consequently, the axis of rotation 56 of the can opener 16 is perpendicular to the longitudinal direction of the handle 2. The mentioned axis of rotation 56 is connected to a drive knob 52 located in a position shifted to one side with respect to the body 1 so that it can be seized and operated comfortably without interference (Figs. 14, 15 and 20).
El accesorio que consiste en un conjunto de pelar 42 se describe a continuación en relación con Ia Fig. 16. El mencionado conjunto de pelar 42 comprende un soporte 53 que incluye, como todos los accesorios citados, dicha porción de acoplamiento 18, un par de dichas lengüetas elásticas 20 con sus correspondientes áreas presionables 55, y dichas configuraciones de guía 22. El mencionado soporte 53 define una horquilla que soporta de manera basculante una hoja de pelador 54.The accessory consisting of a stripping assembly 42 is described below in relation to Fig. 16. The said stripping assembly 42 comprises a support 53 which includes, like all the aforementioned accessories, said coupling portion 18, a pair of said elastic tabs 20 with their corresponding pressable areas 55, and said guide configurations 22. Said support 53 defines a fork that pivotally supports a peeler blade 54.
Haciendo de nuevo referencia a Ia Fig. 1 , el mango 2 comprende un alojamiento interior que se extiende a Io largo del mismo. El mencionado alojamiento tiene una abertura 27 en un extremo del mango 2 opuesto al cabezal 3 para recibir insertado a su través un cajón o bandeja 28 capaz de albergar uno o más complementos, tales como una serie de puntas de herramienta 31. El mencionado cajón o bandeja 28 tiene unas aletas elásticas 32 adaptadas para sujetar dichas puntas de herramienta 31 en situación de almacenamiento. El cajón o bandeja 28 tiene, junto a un extremo exterior del mismo, una pared final 30 capaz de cerrar dicha abertura 27 cuando el cajón o bandeja 28 está alojado en el mango 2. Desde los extremos laterales de dicha pared final 30 se extienden un par de lengüetas elásticas 29 capaces de encajar y quedar retenidas en un configuración de retención formada en el mango 2. Para permitir desenclavar las lengüetas elásticas 29 de Ia configuración de retención del mango 2, cada lengüeta elástica 29 tiene asociada un área presionable 57 capaz de desviar Ia lengüeta elástica 29 al ser presionada. Como es convencional, cada una de dichas puntas de herramienta 31 tiene una porción de acoplamiento de sección poligonal, y en dicha pared final 30 está formado un asiento 33 con una abertura a través de Ia cual puede ser insertada dicha porción de acoplamiento de cualquiera de las puntas de herramienta 31 para sujetar Ia punta de herramienta 31 en situación operativa alineada con Ia dirección longitudinal del mango 2. El mencionado asiento 33 tiene una sección poligonal conjugada con dicha sección poligonal de Ia porción de acoplamiento de Ia punta de herramienta 31 para transmitir a Ia misma un par de giro aplicado sobre el mango 2.Referring again to Fig. 1, the handle 2 comprises an inner housing that extends along it. Said housing has an opening 27 at one end of the handle 2 opposite the head 3 to receive inserted through it a drawer or tray 28 capable of housing one or more complements, such as a series of tool tips 31. Said drawer or tray 28 has elastic fins 32 adapted to hold said tool tips 31 in storage situation. The drawer or tray 28 has, next to an outer end thereof, an end wall 30 capable of closing said opening 27 when the drawer or tray 28 is housed in the handle 2. From the lateral ends of said end wall 30 a pair of elastic tongues 29 able to fit and being retained in a retention configuration formed in the handle 2. To allow unlocking the elastic tongues 29 of the retention configuration of the handle 2, each elastic tongue 29 has an associated pressable area 57 capable of deflecting the elastic tongue 29 when pressed . As is conventional, each of said tool tips 31 has a coupling portion of polygonal section, and in said end wall 30 a seat 33 is formed with an opening through which said coupling portion of any of the tool tips 31 for holding the tool tip 31 in an operative situation aligned with the longitudinal direction of the handle 2. The said seat 33 has a polygonal section conjugated with said polygonal section of the coupling portion of the tool tip 31 for transmitting to it a torque applied on the handle 2.
Adicionalmente, tal como se muestra mejor en Ia Fig. 11 , el cajón o bandeja 28 tiene una cavidad 34 que tiene una abertura en dicha pared final 30. Dicha cavidad 34 está adaptada para recibir insertada una porción trasera de una segunda placa de afilar 35, de manera que una porción delantera de Ia segunda placa de afilar 35 sobresale en situación operativa hacia fuera desde Ia pared final 30. Para sujetar y retener Ia segunda placa de afilar 35 en Ia mencionada cavidad 34 están dispuestos unos segundos clips elásticos 36 que tienen unas partes exteriores capaces de presionar contra unas superficies interiores enfrentadas de dicha cavidad 34 y unas partes interiores capaces de presionar contra unas superficies exteriores opuestas de Ia segunda placa de afilar 35. Haciendo referencia ahora a las Figs. 17 a 20, en ellas se ilustran diferentes posibilidades de asido del útil. El mango 2 está diseñado desde un punto de vista ergonómico para que pueda ser agarrado con una mano de diferentes maneras adaptadas al uso del afilador y de los diferentes accesorios. La Fig. 17 muestra un modo de agarrar el mango 2 adecuado para utilizar el accesorio que constituye un conjunto de afilado 15 acoplado al cabezal 3. La Fig. 18 muestra un modo de agarrar el mango 2 adecuado para utilizar Ia zona de afilado y pulido definida por Ia entalladura 10 del cabezal 3. La Fig. 19 muestra un modo de agarrar el mango 2 adecuado para utilizar una punta de herramienta 31 instalada en Ia pared final 30 del cajón o bandeja 28 situado/a en el extremo del mango 2 más alejado del cabezal 3. Finalmente, Ia Fig. 20 muestra un modo de agarrar el mango 2 adecuado para utilizar el accesorio abrelatas 16 acoplado al cabezal 3 para abrir una lata L.Additionally, as best shown in Fig. 11, the drawer or tray 28 has a cavity 34 having an opening in said end wall 30. Said cavity 34 is adapted to receive a rear portion of a second sharpening plate 35 inserted , so that a front portion of the second sharpening plate 35 protrudes outwardly from the final wall 30. To hold and retain the second sharpening plate 35 in said cavity 34, second elastic clips 36 are provided which have outer parts capable of pressing against facing inner surfaces of said cavity 34 and inner parts capable of pressing against opposite outer surfaces of the second sharpening plate 35. Referring now to Figs. 17 to 20, they illustrate different possibilities of grasping the tool. The handle 2 is designed from an ergonomic point of view so that it can be grasped with one hand in different ways adapted to the use of the sharpener and the different accessories. Fig. 17 shows a way of grasping the handle 2 suitable for using the accessory that constitutes a sharpening assembly 15 coupled to the head 3. Fig. 18 shows a way of grasping the handle 2 suitable for using the area of sharpening and polishing defined by the notch 10 of the head 3. Fig. 19 shows a way of grasping the handle 2 suitable for using a tip of tool 31 installed in the final wall 30 of the drawer or tray 28 located at the end of the handle 2 furthest from the head 3. Finally, Fig. 20 shows a way of grasping the handle 2 suitable for using the attached can opener accessory 16 to head 3 to open a can L.
Un experto en Ia materia será capaz de introducir variaciones y modificaciones en los ejemplos de realización mostrados y descritos sin salirse del alcance de Ia presente invención según está definido en las reivindicaciones adjuntas. One skilled in the art will be able to introduce variations and modifications in the examples of embodiment shown and described without departing from the scope of the present invention as defined in the appended claims.

Claims

REIVINDICACIONES
1.- Útil para afilar y pulir manualmente herramientas de corte, que comprende: un cuerpo (1) que define un cabezal (3) y un mango (2); unos primer y segundo asientos (4a) y (4b) situados en dicho cabezal (3) para soportar respectivamente unas primera y segunda placas de metal duro (5a) y (5b) dispuestas Ia una sobre Ia otra con unos respectivos cantos cruzados; medios de articulación de cada una de dichas primera y segunda placas de metal duro (5a) y (5b) a dichos primer y segundo asientos (4a) y (4b) y que comprenden un primer tetón ó vastago (6a, 6b) y un primer agujero (8a, 8b), acoplados por inserción; una entalladura (10) en dicho cabezal (3) a través de Ia cual es accesible una zona de cruce de dichos cantos cruzados de las primera y segunda placas de metal duro (5a) y (5b), constituyendo dicha zona de cruce al menos una zona de afilado; una cubierta (11) adaptada para ser acoplada de manera liberable al cabezal (3) y configurada para retener las primera y segunda placas de metal duro (5a) y (5b) en el cabezal (3); en donde dichos primer y segundo asientos (4a) y (4b) proporcionan un espacio suficiente para permitir a las primera y segunda placas de metal duro (5a) y (5b) pivotar en direcciones opuestas alrededor de los respectivos primeros tetones o vastagos (6a, 6b) insertados en los primeros agujeros (8a, 8b), estando dispuesto al menos un elemento elástico (12a, 12b, 50) para empujar las primera y segunda placas de metal duro (5a) y (5b) Ia una hacia Ia otra, por Io que las primera y segunda placas de metal duro (5a) y (5b) pivotan contra el empuje de dicho elemento elástico (12a, 12b, 50), que es al menos uno, como consecuencia de una presión ejercida por una herramienta de corte (H) sobre dicha zona de cruce de los cantos cruzados de las primera y segunda placas de metal duro (5a) y (5b).1.- Useful for sharpening and polishing cutting tools manually, comprising: a body (1) defining a head (3) and a handle (2); first and second seats (4a) and (4b) located in said head (3) to respectively support first and second hard metal plates (5a) and (5b) arranged one on the other with respective crossed edges; articulation means of each of said first and second hard metal plates (5a) and (5b) to said first and second seats (4a) and (4b) and comprising a first stud or rod (6a, 6b) and a first hole (8a, 8b), inserted by insertion; a notch (10) in said head (3) through which a crossing area of said crossed edges of the first and second hard metal plates (5a) and (5b) is accessible, said crossing area constituting at least a sharpening zone; a cover (11) adapted to be releasably coupled to the head (3) and configured to retain the first and second hard metal plates (5a) and (5b) in the head (3); wherein said first and second seats (4a) and (4b) provide sufficient space to allow the first and second hard metal plates (5a) and (5b) to pivot in opposite directions around the respective first studs or stems (6a , 6b) inserted in the first holes (8a, 8b), at least one elastic element (12a, 12b, 50) being arranged to push the first and second hard metal plates (5a) and (5b) Ia towards each other , so that the first and second hard metal plates (5a) and (5b) pivot against the thrust of said elastic element (12a, 12b, 50), which is at least one, as a result of a pressure exerted by a tool cutting (H) on said crossing area of the crossed edges of the first and second hard metal plates (5a) and (5b).
2.- Útil, de acuerdo con Ia reivindicación 1 , caracterizado porque comprende además, para cada una de dichas primera y segunda placas de metal duro (5a) y (5b), unos medios de guía y tope integrados por un segundo tetón o vastago (7a, 7b) que está acoplado por inserción en un correspondiente segundo agujero (9a, 9b) alargado y/o agrandado, por Io que dicho acoplamiento de dichos segundos agujeros (9a, 9b) alargados y/o agrandados y tetones (7a, 7b) permite un deslizamiento relativo cuando las primera y segunda placas de metal duro (5a) y (5b) pivotan.2.- Useful, according to claim 1, characterized in that it also comprises, for each of said first and second plates of hard metal (5a) and (5b), guide and stop means integrated by a second stud or rod (7a, 7b) which is coupled by insertion in a corresponding second elongated and / or enlarged second hole (9a, 9b), by Therefore, said coupling of said second elongated and / or enlarged holes (9a, 9b) and lugs (7a, 7b) allows a relative sliding when the first and second hard metal plates (5a) and (5b) pivot.
3,- Útil, de acuerdo con Ia reivindicación 1 , caracterizado porque comprende unos primer y segundo tetones (6a, 6b) y (7a, 7b) que sobresalen de cada uno de dichos primer y segundo asientos (4a) y (4b) y que están insertados en unos correspondientes primer y segundo agujeros (8a, 8b) y (9a, 9b) formados en cada una de dichas primera y segunda placas de metal duro (5a) y (5b) y porque los mencionados segundos agujeros (9a, 9b) de las primera y segunda placas de metal duro (5a) y (5b) son alargados y/o agrandados, y al menos un elemento elástico (12a, 12b, 50) está dispuesto para empujar las primera y segunda placas de metal duro (5a) y (5b) Ia una hacia Ia otra, por Io que las primera y segunda placas de metal duro (5a) y (5b) son aptas para pivotar en direcciones opuestas alrededor de los respectivos primeros tetones (6a, 6b) insertados en los primeros agujeros (8a, 8b) contra el empuje de dicho elemento elástico (12a, 12b, 50), que es al menos uno, mientras los segundos agujeros (9a, 9b) alargados y/o agrandados deslizan sobre los correspondientes segundos tetones (7a, 7b) como consecuencia de una presión ejercida por una herramienta de corte (H) sobre dicha zona de cruce de los cantos cruzados de las primera y segunda placas de metal duro (5a) y (5b).3, - Useful, according to claim 1, characterized in that it comprises first and second lugs (6a, 6b) and (7a, 7b) protruding from each of said first and second seats (4a) and (4b) and which are inserted in corresponding first and second holes (8a, 8b) and (9a, 9b) formed in each of said first and second hard metal plates (5a) and (5b) and because said second holes (9a, 9b) of the first and second hard metal plates (5a) and (5b) are elongated and / or enlarged, and at least one elastic element (12a, 12b, 50) is arranged to push the first and second hard metal plates (5a) and (5b) Ia towards each other, so that the first and second hard metal plates (5a) and (5b) are able to pivot in opposite directions around the respective first studs (6a, 6b) inserted in the first holes (8a, 8b) against the thrust of said elastic element (12a, 12b, 50), which is at least one, while the second hole s (9a, 9b) elongated and / or enlarged slide over the corresponding second lugs (7a, 7b) as a result of a pressure exerted by a cutting tool (H) on said crossing zone of the first and second cross edges hard metal plates (5a) and (5b).
4.- Útil, de acuerdo con Ia reivindicación 2 ó 3, caracterizado porque los primeros tetones (6a, 6b) y correspondientes primeros agujeros (8a, 8b) están situados más cerca de Ia entrada de dicha entalladura (10) que el punto de cruce.4.- Useful, according to claim 2 or 3, characterized in that the first studs (6a, 6b) and corresponding first holes (8a, 8b) are located closer to the entrance of said recess (10) than the point of crossing.
5.- Útil, de acuerdo con Ia reivindicación 4, caracterizado porque los respectivos cantos cruzados de las primera y segunda placas de metal duro (5a) y (5b) son curvados de forma convexa.5.- Useful, according to claim 4, characterized in that the respective crossed edges of the first and second hard metal plates (5a) and (5b) are convexly curved.
6.- Útil, de acuerdo con Ia reivindicación 5, caracterizado porque cada una de las primera y segunda placas de metal duro (5a) y (5b) tiene un contorno simétrico respecto a un plano longitudinal centrado en los respectivos primer y segundo agujeros (8a, 8b) y (9a, 9b).6.- Useful, according to claim 5, characterized in that each of the first and second hard metal plates (5a) and (5b) has an outline symmetrical with respect to a longitudinal plane centered on the respective first and second holes (8a, 8b) and (9a, 9b).
7.- Útil, de acuerdo con Ia reivindicación 6, caracterizado porque dicho contorno de cada una de las primera y segunda placas de metal duro (5a) y (5b) es aproximadamente ovalado con una porción truncada en un extremo longitudinal más próximo al respectivo segundo agujero (9a, 9b).7.- Useful, according to claim 6, characterized in that said contour of each of the first and second hard metal plates (5a) and (5b) is approximately oval with a truncated portion at a longitudinal end closer to the respective second hole (9a, 9b).
8.- Útil, de acuerdo con Ia reivindicación 7, caracterizado porque cada una de las primera y segunda placas de metal duro (5a) y (5b) tiene una primera cara (43) mayor, una segunda cara (44) mayor, opuesta, y un canto perimétrico (45) que define dicho canto curvado convexo, comprendiendo una arista redondeada (37) en Ia confluencia de dicha primera cara (43) con dicho canto perimétrico (45) y una arista viva (38) en Ia confluencia de dicha segunda cara (44) con el canto perimétrico (45).8.- Useful, according to claim 7, characterized in that each of the first and second hard metal plates (5a) and (5b) has a larger first face (43), a larger, opposite second face (44) , and a perimeter edge (45) defining said convex curved edge, comprising a rounded edge (37) at the confluence of said first face (43) with said perimeter edge (45) and a living edge (38) at the confluence of said second face (44) with the perimeter edge (45).
9.- Útil, de acuerdo con Ia reivindicación 8, caracterizado porque las primera y segunda placas de metal duro (5a) y (5b) están dispuestas con Ia primera cara (43) de una sobre Ia segunda cara (44) de Ia otra, por Io que dicha arista redondeada (37) de una de las placas (5b) está adyacente a dicha arista viva (38) de Ia otra placa (5a), de manera que según sea el sentido de avance del Ia herramienta de corte (H) sobre dicha zona de cruce proporciona un afilado o un pulido.9.- Useful, according to claim 8, characterized in that the first and second hard metal plates (5a) and (5b) are arranged with the first face (43) of one on the second face (44) of the other , so that said rounded edge (37) of one of the plates (5b) is adjacent to said living edge (38) of the other plate (5a), so that according to the direction of advance of the cutting tool ( H) on said crossing area provides a sharpening or polishing.
10.- Útil, de acuerdo con Ia reivindicación 1, caracterizado porque dicho elemento elástico (12a, 12b, 50), que es al menos uno, está seleccionado a partir de un grupo que comprende una pieza de material elastómero, un fleje metálico o un muelle. 10.- Useful, according to claim 1, characterized in that said elastic element (12a, 12b, 50), which is at least one, is selected from a group comprising a piece of elastomeric material, a metallic strap or a pier.
11.- Útil, de acuerdo con Ia reivindicación 1 , caracterizado porque dicha entalladura (10) está orientada en dicho cabezal (3) hacia un primer lado de dicho mango (2), en donde el útil presenta un ensanchamiento.11.- Useful, according to claim 1, characterized in that said notch (10) is oriented in said head (3) towards a first side of said handle (2), wherein the tool has a widening.
12.- Útil, de acuerdo con Ia reivindicación 11 , caracterizado porque Ia entalladura (10) está orientada aproximadamente a 90 grados respecto a Ia dirección longitudinal del mango (2).12.- Useful, according to claim 11, characterized in that the notch (10) is oriented approximately 90 degrees with respect to the longitudinal direction of the handle (2).
13.- Útil, de acuerdo con Ia reivindicación 11, caracterizado porque el cabezal comprende, en un segundo lado del mango (2) opuesto a dicho primer lado, un acoplamiento (14) adaptado para recibir y sujetar de manera liberable un accesorio seleccionado a partir de un grupo que comprende un conjunto de afilado (15), un abrelatas (16), un conjunto de pelar (42), entre otros.13.- Useful, according to claim 11, characterized in that the head comprises, on a second side of the handle (2) opposite said first side, a coupling (14) adapted to receive and hold releasably an accessory selected from a group comprising a sharpening assembly (15), a can opener (16), a stripping assembly (42), among others.
14.- Útil, de acuerdo con Ia reivindicación 13, caracterizado porque dicho acoplamiento (14) comprende un alojamiento (17) para recibir una porción de acoplamiento (18) de dicho accesorio, y al menos un configuración de retención14.- Useful, according to claim 13, characterized in that said coupling (14) comprises a housing (17) for receiving a coupling portion (18) of said accessory, and at least one retention configuration
(19) adaptada para recibir y retener al menos una lengüeta elástica (20) de dicho accesorio, estando dispuestas unas configuraciones de guía (21) en dicho alojamiento (17) para cooperar con unas correspondientes configuraciones de guía (22) de dicha porción de acoplamiento (18) del accesorio para guiar Ia inserción del accesorio y resistir un par de giro del accesorio respecto al mango(19) adapted to receive and retain at least one elastic tongue (20) of said accessory, guide configurations (21) being arranged in said housing (17) to cooperate with corresponding guide configurations (22) of said portion of said coupling (18) of the accessory to guide the insertion of the accessory and resist a torque of the accessory with respect to the handle
(2) cuando el accesorio está acoplado en dicho acoplamiento (14).(2) when the accessory is coupled in said coupling (14).
15.- Útil, de acuerdo con Ia reivindicación 14, caracterizado porque dicho conjunto de afilado (15) comprende un soporte (23) que incluye dicha porción de acoplamiento (18), dicha lengüeta elástica (20), que es al menos una, y dichas configuraciones de guía (22), y una primera placa de afilar (24) que tiene una porción trasera adaptada para alojarse en una cavidad (25) de dicho soporte15.- Useful, according to claim 14, characterized in that said sharpening assembly (15) comprises a support (23) that includes said coupling portion (18), said elastic tongue (20), which is at least one, and said guide configurations (22), and a first sharpening plate (24) having a rear portion adapted to accommodate in a cavity (25) of said support
(23) y una porción delantera que sobresale hacia fuera de dicho soporte (23), estando dispuestos unos primeros clips elásticos (26) que tienen unas partes exteriores capaces de presionar contra dicha cavidad (25) y unas partes interiores capaces de presionar contra dicha primera placa de afilar (24) para sujetar y retener Ia primera placa de afilar (24) en Ia cavidad (25).(23) and a front portion protruding out of said support (23), first elastic clips (26) being arranged having outer parts capable of pressing against said cavity (25) and inner parts capable of pressing against said support first sharpening plate (24) to hold and retain the first sharpening plate (24) in the cavity (25).
16.- Útil, de acuerdo con Ia reivindicación 14, caracterizado porque dicho abrelatas (16) comprende un soporte (51) que incluye dicha porción de acoplamiento (18), dicha lengüeta elástica (20), que es' al menos una, y dichas configuraciones de guía (22), siendo dicho abrelatas (16) de tipo giratorio comprendiendo un eje de giro (56) perpendicular a un plano de inserción del accesorio en dicho alojamiento (17) y perpendicular a Ia dirección longitudinal del mango (2).16.- Useful, according to claim 14, characterized in that said can opener (16) comprises a support (51) that includes said coupling portion (18), said elastic tongue (20), which is ' at least one, and said guide configurations (22), said opener (16) being of rotating type comprising a rotation axis (56) perpendicular to a plane of insertion of the accessory in said housing (17) and perpendicular to the longitudinal direction of the handle (2) .
17.- Útil, de acuerdo con Ia reivindicación 16, caracterizado porque dicho abrelatas (16) comprende un pomo de accionamiento (52) desplazado hacia un lado respecto al cuerpo (1).17.- Useful, according to claim 16, characterized in that said can opener (16) comprises a drive knob (52) moved to one side with respect to the body (1).
18,- Útil, de acuerdo con Ia reivindicación 14, caracterizado porque dicho conjunto de pelar (42) comprende un soporte (53) que incluye dicha porción de acoplamiento (18), dicha lengüeta elástica (20), que es al menos una, y dichas configuraciones de guía (22), definiendo dicho soporte (53) una horquilla que soporta una hoja de pelador (54).18, - Useful, according to claim 14, characterized in that said stripping assembly (42) comprises a support (53) including said portion of coupling (18), said elastic tongue (20), which is at least one, and said guide configurations (22), said support (53) defining a fork that supports a peeler blade (54).
19.- Útil, de acuerdo con Ia reivindicación 1 , caracterizado porque dicho mango (2) comprende un alojamiento que se extiende a Io largo del mismo y que tiene una abertura (27) en un extremo opuesto al cabezal (3) para recibir insertado un cajón o bandeja (28) capaz de albergar al menos un complemento, teniendo dicho cajón o bandeja (28) junto a un extremo exterior al menos una lengüeta elástica (29) capaz de encajar y quedar retenida en un configuración de retención formada en el mango (2) y una pared final (30) capaz de cerrar dicha abertura (27) cuando el cajón o bandeja (28) está alojado en el mango (2).19.- Useful, according to claim 1, characterized in that said handle (2) comprises a housing that extends along it and has an opening (27) at an end opposite the head (3) to receive inserted a drawer or tray (28) capable of housing at least one complement, said drawer or tray (28) having at least one elastic tongue (29) capable of engaging and being retained in a retention configuration formed in the handle (2) and an end wall (30) capable of closing said opening (27) when the drawer or tray (28) is housed in the handle (2).
20,- Útil, de acuerdo con Ia reivindicación 19, caracterizado porque dicho complemento es una punta de herramienta (31) que tiene una porción de acoplamiento de sección poligonal, y el cajón o bandeja (28) tiene unas aletas elásticas (32) adaptadas para sujetar dicha punta de herramienta (31) en situación de almacenamiento y un asiento (33) con una abertura en dicha pared final (30) para sujetar Ia punta de herramienta (31) en situación operativa, teniendo dicho asiento (33) una sección poligonal conjugada con dicha sección poligonal de Ia porción de acoplamiento de Ia punta de herramienta (31) para transmitir a Ia misma un par de giro aplicado sobre el mango (2).20, - Useful, according to claim 19, characterized in that said complement is a tool tip (31) having a coupling portion of polygonal section, and the drawer or tray (28) has adapted elastic fins (32) to hold said tool tip (31) in storage situation and a seat (33) with an opening in said end wall (30) to hold the tool tip (31) in operative situation, said seat (33) having a section polygonal conjugated with said polygonal section of the coupling portion of the tool tip (31) to transmit to it a torque applied on the handle (2).
21.- Útil, de acuerdo con Ia reivindicación 19, caracterizado porque dicho cajón o bandeja (28) tiene una cavidad (34) con una abertura en dicha pared final (30) para recibir insertada una porción trasera de una segunda placa de afilar (35) de manera que una porción delantera de Ia misma sobresale hacia fuera desde Ia pared final (30), estando dispuestos unos segundos clips elásticos (36) que tienen unas partes exteriores capaces de presionar contra dicha cavidad (34) y unas partes interiores capaces de presionar contra dicha segunda placa de afilar (35) para sujetar y retener Ia segunda placa de afilar (35) en Ia cavidad (34). 21.- Useful, according to claim 19, characterized in that said drawer or tray (28) has a cavity (34) with an opening in said end wall (30) to receive inserted a rear portion of a second sharpening plate ( 35) so that a front portion thereof protrudes outwardly from the final wall (30), with second elastic clips (36) being arranged having outer parts capable of pressing against said cavity (34) and inner parts capable pressing against said second sharpening plate (35) to hold and retain the second sharpening plate (35) in the cavity (34).
22.- Útil, de acuerdo con Ia reivindicación 1 , caracterizado porque dicha cubierta (11) incluye una lengüeta elástica (39) capaz de encajar y quedar retenida en un configuración de retención (40) del cabezal (3). 22.- Useful, according to claim 1, characterized in that said cover (11) includes an elastic tongue (39) capable of fitting and being retained in a retention configuration (40) of the head (3).
23.- Útil, de acuerdo con cualquiera de las reivindicaciones precedentes, caracterizado porque el cuerpo alargado (1) tiene una parte inferior plana (13) apta para ser apoyada sobre una base plana (P) y dicha parte inferior plana (13) tiene un resalto (41) apto para hacer tope contra un borde (M) de dicha base plana (P) y con ello resistir dicha presión ejercida por una herramienta de corte (H) sobre Ia zona de cruce.23. Useful, according to any of the preceding claims, characterized in that the elongated body (1) has a flat bottom part (13) suitable for being supported on a flat base (P) and said flat bottom part (13) has a shoulder (41) suitable for abutting against an edge (M) of said flat base (P) and thereby resisting said pressure exerted by a cutting tool (H) on the crossing area.
24,- Útil, de acuerdo con Ia reivindicación 19, caracterizado porque dicho complemento está seleccionado de un grupo que comprende una piedra de afilar japonesa, un juego de puntas de herramienta, un utensilio de menaje tal como un útil cortapiñas, y una o más cucharas, entre otros. 24, - Useful, according to claim 19, characterized in that said complement is selected from a group comprising a Japanese whetstone, a set of tool tips, a utensil such as a useful clipper, and one or more Spoons, among others.
PCT/ES2006/000522 2005-09-21 2006-09-19 Tool for the manual grinding and sharpening of cutting implements WO2007034016A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06819986A EP1944127B1 (en) 2005-09-21 2006-09-19 Tool for the manual grinding and sharpening of cutting implements
ES06819986T ES2420681T3 (en) 2005-09-21 2006-09-19 Useful for sharpening and polishing cutting tools manually

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200502365A ES2270728B1 (en) 2005-09-21 2005-09-21 USEFUL TO MANUALLY SHARP CUTTING TOOLS.
ESP200502365 2005-09-21

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WO2007034016A1 true WO2007034016A1 (en) 2007-03-29

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PCT/ES2006/000522 WO2007034016A1 (en) 2005-09-21 2006-09-19 Tool for the manual grinding and sharpening of cutting implements

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ES (2) ES2270728B1 (en)
WO (1) WO2007034016A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432231A (en) * 1945-12-20 1947-12-09 Design Service Inc Device for sharpening knives or the like
US5291805A (en) * 1992-07-06 1994-03-08 Byers Gary L Sharpening and deburring tool
US6142038A (en) * 1998-10-17 2000-11-07 Theodore Kenesky Knife and broadhead blade sharpener
DE10052439C1 (en) * 2000-10-23 2001-10-31 Alois Spreitz Knife sharpening device with two crossed sharpening rods has ceramic rods and arc-shaped guides either side of slot

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004006714A1 (en) * 2004-02-11 2005-08-25 Harald Stallegger Sharpening device for knives were has sharpening bars in housing with front and rear wall forming knife insertion aperture, with parallel slots

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432231A (en) * 1945-12-20 1947-12-09 Design Service Inc Device for sharpening knives or the like
US5291805A (en) * 1992-07-06 1994-03-08 Byers Gary L Sharpening and deburring tool
US6142038A (en) * 1998-10-17 2000-11-07 Theodore Kenesky Knife and broadhead blade sharpener
DE10052439C1 (en) * 2000-10-23 2001-10-31 Alois Spreitz Knife sharpening device with two crossed sharpening rods has ceramic rods and arc-shaped guides either side of slot

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1944127A4 *

Also Published As

Publication number Publication date
EP1944127A1 (en) 2008-07-16
ES2420681T3 (en) 2013-08-26
ES2270728B1 (en) 2008-03-16
ES2270728A1 (en) 2007-04-01
EP1944127B1 (en) 2013-03-06
EP1944127A4 (en) 2011-06-22

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