EP0357821A1 - Razor - Google Patents

Razor Download PDF

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Publication number
EP0357821A1
EP0357821A1 EP88114642A EP88114642A EP0357821A1 EP 0357821 A1 EP0357821 A1 EP 0357821A1 EP 88114642 A EP88114642 A EP 88114642A EP 88114642 A EP88114642 A EP 88114642A EP 0357821 A1 EP0357821 A1 EP 0357821A1
Authority
EP
European Patent Office
Prior art keywords
razor blade
razor
spring
blade unit
pivot axis
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP88114642A
Other languages
German (de)
French (fr)
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EP0357821B1 (en
Inventor
Wolfgang Althaus
Michael Schwarz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilkinson Sword GmbH
Original Assignee
Wilkinson Sword GmbH
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Filing date
Publication date
Application filed by Wilkinson Sword GmbH filed Critical Wilkinson Sword GmbH
Publication of EP0357821A1 publication Critical patent/EP0357821A1/en
Application granted granted Critical
Publication of EP0357821B1 publication Critical patent/EP0357821B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
    • B26B21/222—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit
    • B26B21/225—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit the changeable unit being resiliently mounted on the handle

Definitions

  • the invention relates to a razor consisting of a razor blade unit, in which a razor blade is embedded in a plastic housing, and a handle, at the front end of which the razor blade unit by means of an openable and closable fork holder, starting from a spring-loaded zero position around the cutting edge of the razor blade parallel pivot axis is pivotally mounted.
  • Shavers in which a razor blade unit is interchangeably and pivotably mounted at the front end of a handle by means of a fork holder are known.
  • the fork holder of the handle engages in the middle of the underside of the razor blade unit, the razor blade unit being able to be pivoted on both sides of this zero position, starting from a spring-loaded zero position within a swivel range of 60 ° to 70 °.
  • the razor blade unit is always stored in the middle on the handle, which leads to unsafe guidance, as is the play that is inevitable between the bearing bore and the journal.
  • the object of the invention is to create a swivel-head razor with fewer swiveling movements of the razor blade unit with respect to the handle during the shaving process.
  • the invention proposes that the pivot axis of the fork holder extends in the region of the cutting edge of the razor blade.
  • a trained according to this technical teaching swivel head shaver has the advantage that the torque occurring during the shaving process is significantly reduced by the arrangement of the pivot axis in the cutting edge of the razor blade, so that the resulting pivoting movements during the shaving process are relatively low.
  • This has the particular advantage that the razor blade unit adapts exactly to the contour of the face.
  • the pivot axis of the fork holder preferably extends in the area of the cutting edge of the foremost razor blade.
  • the pivot axis preferably runs in front of the cutting edge of the razor blade and is arranged somewhat below the plane of the razor blade. This results in optimal shaving properties of the swivel head razor, since this is a stable guide.
  • the force is applied through the handle at the level of the force reduction on the blades.
  • the pivot axis can also be arranged below a front guide bar.
  • the razor blade unit is mounted on the fork holder in the area of the side walls of the plastic housing. In this way, there is a storage lying far outside, which leads to a safe guidance.
  • the fork holder is preferably designed as a spring mounted in the handle, in particular a wire spring, which has an actuation area for the fingers of the user to disengage the spring from the razor blade unit.
  • This poses represents a technically very simple possibility for locking the handle with the razor blade unit, in particular thereby enabling simple one-hand operation by the user.
  • this spring for the fork holder has a U-shaped base element, the front leg ends of which have fork arms lying in the plane of the base spring element and projecting outwards, which are engaged with their front ends in corresponding recesses in the razor blade unit and the bearing points define.
  • the U-shaped base spring element enables a simple disengagement of the fork holder on the razor blade unit by pressing the legs of this base spring element together, so that the front ends of the fork arms pivot inwards.
  • the front ends of the fork arms are each preferably S-shaped in the plane of the spring and form trunnions. This bend allows the fork holder of the handle to be inserted into the inside of the razor blade unit in a simple manner, so that the bearing points can be brought into close proximity to the foremost cutting edge in a technically very simple manner.
  • the razor blade unit has a stop for the zero position corresponding to the fork holder, against which the zero position spring presses the razor blade unit and the razor blade unit can only be pivoted in one direction, preferably backwards, starting from this zero position.
  • a U-shaped spring, a leaf spring, a leg spring or the like made of plastic or metal can be provided as the so-called zero-position spring.
  • the zero-position spring is preferably arranged at the rear, upper end of the handle and is supported on the rear underside of the razor blade unit. In any case, this zero-position spring presses the razor-blade unit into the zero-position position, from which the razor-blade unit can only be pivoted in one direction.
  • the swivel range of the razor blade unit is preferably 15 ° to 30 °. Together with the close arrangement of the swivel axis on the Cutting edge of the razor blade results in an optimal design of the razor with regard to its shaving properties, since the one-sided pivoting movement ensures a constant optimal contact pressure, which is not dependent on a central position.
  • FIGS. 4 and 5 show a schematic sectional illustration of a complete shaving apparatus 2, in which the razor blade unit 1 from FIGS. 1 to 3 is attached to the front end of a handle 3. This handle 3 or parts thereof are shown in FIGS. 4 and 5.
  • the razor blade unit 1 consists of a one-piece plastic housing 4. This has a front guide bar 5, two side walls 6 and a blade platform 7 on the inside.
  • a double razor blade consisting of the two razor blades 8,8 'is inserted from above through an opening 9 formed in the plastic housing 4.
  • the two razor blades 8, 8 ' are attached to a flat, elongated, cuboid spacer 10 in such a manner that the spacer 10 is sandwiched between the two razor blades 8, 8'.
  • the razor blades 8,8 'and the spacer 10 thus form a so-called razor blade / spacer unit 11.
  • the spacer 10 is somewhat longer than the two razor blades 8,8', so that the spacer 10 slightly over the ends of the razor blades 8, 8 'survives.
  • the blade platform 7 of the razor blade unit 1 has a recess 12 on both sides in the region of the side walls 6.
  • the razor blade / spacer unit 11 is placed from above in the direction of arrow P in the plastic housing 4 on the blade platform 7. Subsequently, as can be seen in FIG. 2, the plastic housing 4 is wrapped with wire 13 together with the razor blades / spacer unit 11 used.
  • a cap 14 with an essentially U-shaped cross-sectional profile is used for this purpose.
  • the cap 14, which extends over the entire length of the plastic housing 4 has a latching device 15 on the upper side. This consists of end-side latch arms 16 which each have a latch 17 at their front ends. Corresponding to these locking lugs 17, the plastic housing 4 each has a locking recess 18.
  • FIG. 3 Because the top of the cap 14 rests on the razor blade / spacer unit 11, the latter is fixed firmly on the blade platform 7 of the plastic housing 4.
  • a handle 3 is provided for the razor blade unit 1. This has a special fork holder 19 at its front end, by means of which the handle 3 can be snapped into the razor blade unit 1.
  • This fork holder 19 consists of a spring 20 in the form of a wire spring. This is shown in FIG. 4 on its own without the handle 3.
  • This spring 20 initially consists of a U-shaped base spring element 21, the front leg ends of which are bent vertically outwards and form fork arms 22. The front ends of the fork arms 22 are bent in an S-shape and form bearing pins 23.
  • FIG. 5 shows how the spring 20 of the fork holder 19 is arranged in the front area of the handle 3.
  • the base of the U-shaped base spring element 21 is fixed within the handle 3 in such a way that the legs extend forward.
  • the fork arms 22 come to lie in a T-shaped extension 24 of the handle 3.
  • the legs of the basic spring element 21 are exposed in the front area.
  • actuation areas B are formed so that the bearing pins 23 of the spring 20 can be pivoted inwards toward one another by compressing the legs of the base spring element 21. This is indicated by the arrows P ⁇ . After releasing the bearing pins 23 return to their starting position.
  • a so-called zero-position spring 25 can be seen in FIGS. 4 and 5.
  • this is designed as a leaf spring made of plastic or metal and is mounted with its lower end in the handle 3.
  • it can also be designed as a U-spring, as a leg spring, etc.
  • the technical meaning of the zero position spring 25 will be explained later with reference to FIG. 6.
  • the journals 23 are first pivoted inward in the manner described.
  • the fork holder 19 can be inserted into the razor blade unit 1, as can be seen in particular in FIGS. 3 and 6.
  • the razor blade unit 1 is each provided in the region of its side walls 6 with a recess 26 into which the bearing pins 23 of the fork holder 19 engage after the spring 20 has been released.
  • the pivot axis S defined by the bearing pin 23 lies in the region of the cutting edge 27 of the front razor blade 8, ie the pivot axis S runs in front of this cutting edge 27 parallel to it and somewhat offset below the plane of this front razor blade 8
  • FIG. 1 the pivot axis S defined by the bearing pin 23 lies in the region of the cutting edge 27 of the front razor blade 8
  • the pivot axis S runs in front of this cutting edge 27 parallel to it and somewhat offset below the plane of this front razor blade 8
  • the zero-position spring 25 presses the razor blade unit 1 forward against a stop 28 inside the plastic housing 4. During the shaving process, the razor-blade unit 1 can thus only be pivoted backwards against the force of the zero-position spring 25, the pivoting range being between 15 ° and 30 °.

Abstract

A razor having a razor blade unit with a razor blade fixedly disposed in a plastic housing, and also having a handle, on the front end of which the razor blade unit is pivotably mounted via a forked holder that can be opened and closed. The razor blade unit, starting from a spring-loaded neutral position, is pivotable about a pivot axis that extends parallel to the cutting edge of the razor blade. To provide a pivot head razor where the razor blade unit can execute only slight pivot movements relative to the handle during the shaving process, the pivot axis of the forked holder extends in the region of the cutting edge of the razor blade.

Description

Die Erfindung betrifft einen Rasierapparat bestehend aus einer Rasierklingeneinheit, bei der eine Rasierklinge unlösbar in einem Kunststoffgehäuse eingebettet ist, sowie aus einem Handgriff, an dessen vorderem Ende die Rasierklingeneinheit mittels einer öffen- und schließbaren Gabelhalterung ausgehend von einer federbelasteten Nullage um eine zur Schneidkante der Rasierklinge parallele Schwenkachse verschwenkbar gelagert ist.The invention relates to a razor consisting of a razor blade unit, in which a razor blade is embedded in a plastic housing, and a handle, at the front end of which the razor blade unit by means of an openable and closable fork holder, starting from a spring-loaded zero position around the cutting edge of the razor blade parallel pivot axis is pivotally mounted.

Rasierapparate, bei denen eine Rasierklingeneinheit am vorde­ren Ende eines Handgriffes mittels einer Gabelhalterung aus­wechselbar sowie verschwenkbar gelagert ist, sind bekannt. Bei derartigen Schwenkkopf-Rasierapparaten greift die Gabelhalte­rung des Handgriffes in der Mitte der Unterseite der Rasier­klingeneinheit an dieser an, wobei die Rasierklingeneinheit ausgehend von einer federbelasteten Nullage innerhalb eines Schwenkbereiches von 60° bis 70° beidseitig dieser Nullage verschwenkt werden kann.Shavers in which a razor blade unit is interchangeably and pivotably mounted at the front end of a handle by means of a fork holder are known. In such swivel-head razors, the fork holder of the handle engages in the middle of the underside of the razor blade unit, the razor blade unit being able to be pivoted on both sides of this zero position, starting from a spring-loaded zero position within a swivel range of 60 ° to 70 °.

Durch den großen Abstand zwischen der Schwenkachse der Gabel­halterung des Handgriffes und der Schneidkante der Rasier­klinge wird während des Rasiervorganges ein großes Drehmoment erzeugt, was zu einer unsicheren Führung der Rasierklinge und damit verbunden zu einem Schneidrisiko beim Benutzer führt. Darüber hinaus führt die unstabile Krafteinleitung aus einer Nullage in beide Richtungen zu unterschiedlichen Anpreßdrücken in Abhänigigkeit des Schwenkwinkels.Due to the large distance between the swivel axis of the fork holder of the handle and the cutting edge of the razor blade, a large torque is generated during the shaving process, which leads to unsafe guidance of the razor blade and, consequently, to a risk of cutting by the user. In addition, the unstable application of force from a zero position in both directions leads to different contact pressures depending on the swivel angle.

Darüber hinaus erfolgt bei den herkömmlichen Rasierapparaten die Lagerung der Rasierklingeneinheit am Handgriff immer in der Mitte, was zu einer unsicheren Führung führt, ebenso wie das zwischen Lagerbohrung und Lagerzapfen unvermeidliche Spiel.In addition, with the conventional razors, the razor blade unit is always stored in the middle on the handle, which leads to unsafe guidance, as is the play that is inevitable between the bearing bore and the journal.

Davon ausgehend liegt der Erfindung die Aufgabe zu­grunde, einen Schwenkkopf-Rasierapparat mit geringeren Ver­schwenkbewegungen der Rasierklingeneinheit bezüglich zum Hand­griff während des Rasiervorganges zu schaffen.Proceeding from this, the object of the invention is to create a swivel-head razor with fewer swiveling movements of the razor blade unit with respect to the handle during the shaving process.

Als technische Lösung wird mit der Erfindung vorge­schlagen, daß sich die Schwenkachse der Gabelhalterung im Be­reich der Schneidkante der Rasierklinge erstreckt.As a technical solution, the invention proposes that the pivot axis of the fork holder extends in the region of the cutting edge of the razor blade.

Ein nach dieser technischen Lehre ausgebildeter Schwenkkopf-­Rasierapparat hat den Vorteil, daß durch die Anordnung der Schwenkachse im Bereich der Schneidkante der Rasierklinge das während des Rasiervorganges auftretende Drehmoment entschei­dend verringert ist, so daß die aus dem Drehmoment resultie­renden Verschwenkbewegungen während des Rasiervorganges rela­tiv gering sind. Dies hat insbesondere den Vorteil, daß sich die Rasierklingeneinheit exakt der Gesichtskontur anpaßt.A trained according to this technical teaching swivel head shaver has the advantage that the torque occurring during the shaving process is significantly reduced by the arrangement of the pivot axis in the cutting edge of the razor blade, so that the resulting pivoting movements during the shaving process are relatively low. This has the particular advantage that the razor blade unit adapts exactly to the contour of the face.

Bei einem Rasierapparat mit einer Doppelrasierklinge erstreckt sich die Schwenkachse der Gabelhalterung vorzugsweise im Be­reich der Schneidkante der vordersten Rasierklinge.In a razor with a double razor blade, the pivot axis of the fork holder preferably extends in the area of the cutting edge of the foremost razor blade.

Vorzugsweise verläuft die Schwenkachse vor der Schneidkante der Rasierklinge und ist etwas unterhalb der Ebene der Rasier­klinge angeordnet. Dies ergibt optimale Rasiereigenschaften des Schwenkkopf-Rasierapparates, da es sich hierbei um eine stabile Führung handelt. Die Krafteinleitung durch den Handgriff erfolgt dabei in der Ebene der Kraftabnahme an den Klingen. Auch kann die Schwenkachse unterhalb einer vorderen Führungsleiste angeordnet sein.The pivot axis preferably runs in front of the cutting edge of the razor blade and is arranged somewhat below the plane of the razor blade. This results in optimal shaving properties of the swivel head razor, since this is a stable guide. The force is applied through the handle at the level of the force reduction on the blades. The pivot axis can also be arranged below a front guide bar.

In einer Weiterbildung ist die Rasierklingeneinheit im Bereich der Seitenwände des Kunststoffgehäuses an der Gabelhalterung gelagert. Auf diese Weise ergibt sich eine weit außen liegende Lagerung, was zu einer sicheren Führung führt.In a further development, the razor blade unit is mounted on the fork holder in the area of the side walls of the plastic housing. In this way, there is a storage lying far outside, which leads to a safe guidance.

Die Gabelhalterung ist vorzugsweise als eine im Handgriff ge­lagerte Feder, insbesondere Drahtfeder, ausgebildet, die einen Betätigungsbereich für die Finger des Benutzers zum Ausrasten der Feder aus der Rasierklingeneinheit aufweist. Dies stellt eine technisch sehr einfach Möglichkeit zum Verrasten des Handgriffes mit der Rasierklingeneinheit dar, wobei insbeson­dere dadurch eine einfache Einhandbedienung durch den Benutzer ermöglicht wird.The fork holder is preferably designed as a spring mounted in the handle, in particular a wire spring, which has an actuation area for the fingers of the user to disengage the spring from the razor blade unit. This poses represents a technically very simple possibility for locking the handle with the razor blade unit, in particular thereby enabling simple one-hand operation by the user.

In einer bevorzugten Ausführungsform dieser Feder für die Ga­belhalterung weist diese ein U-förmiges Grundelement auf, dessen vordere Schenkelenden in der Ebene des Grundfederele­ments liegende sowie nach außen abstehende Gabelarme auf­weisen, die mit ihren vorderen Enden in entsprechenden Ausspa­rungen in der Rasierklingeneinheit eingerastet sind und die Lagerstellen definieren. Das U-förmige Grundfederelement er­möglicht dabei ein einfaches Ausrasten der Gabelhalterung auf der Rasierklingeneinheit, indem die Schenkel dieses Grundfe­derelements zusammengedrückt werden, so daß die vorderen Enden der Gabelarme nach innen schwenken. Die vorderen Enden der Ga­belarme sind dabei vorzugsweise jeweils S-förmig in der Ebene der Feder gebogen und bilden Lagerzapfen. Durch diese Biegung läßt sich die Gabelhalterung des Handgriffes auf einfache Wei­se ins Innere der Rasierklingeneinheit einführen, so daß auf technisch sehr einfache Weise die Lagerstellen in unmittelbare Nähe zu der vordersten Schneidkante gebracht werden können.In a preferred embodiment of this spring for the fork holder, this has a U-shaped base element, the front leg ends of which have fork arms lying in the plane of the base spring element and projecting outwards, which are engaged with their front ends in corresponding recesses in the razor blade unit and the bearing points define. The U-shaped base spring element enables a simple disengagement of the fork holder on the razor blade unit by pressing the legs of this base spring element together, so that the front ends of the fork arms pivot inwards. The front ends of the fork arms are each preferably S-shaped in the plane of the spring and form trunnions. This bend allows the fork holder of the handle to be inserted into the inside of the razor blade unit in a simple manner, so that the bearing points can be brought into close proximity to the foremost cutting edge in a technically very simple manner.

In einer bevorzugten Weiterbildung weist die Rasierklingenein­heit einen mit der Gabelhalterung korrespondierenden Anschlag für die Nullage auf, gegen den die Nullagenfeder die Rasier­klingeneinheit drückt und wobei die Rasierklingeneinheit aus­gehend von dieser Nullage nur in eine Richtung, vorzugsweise nach hinten verschwenkbar ist. Als sogenannte Nullagenfeder kann eine U-förmige Feder, eine Blattfeder, eine Schenkelfeder oder dgl. aus Kunststoff oder Metall vorgesehen sein. Vorzugs­weise ist die Nullagenfeder am hinteren, oberen Ende des Hand­griffs angeordnet und ist an der hinteren Unterseite der Ra­sierklingeneinheit abgestützt.Auf jeden Fall drückt diese Nullagenfeder die Rasierklingeneinheit in die Nullagen­stellung, aus der die Rasierklingeneinheit nur in eine Richtung verschwenkt werden kann. Der Schwenkbereich der Rasierklingeneinheit beträgt dabei vorzugsweise 15° bis 30°. Zusammen mit der nahen Anordnung der Schwenkachse an der Schneidkante der Rasierklinge ergibt dies eine optimale Aus­bildung des Rasierapparates hinsichtlich seiner Rasiereigen­schaften, da durch die Einseitigkeit der Schwenkbewegung ein gleichbleibender optimaler Anpreßdruck sichergestellt werden kann, der nicht abhängig ist von einer Mittellage.In a preferred development, the razor blade unit has a stop for the zero position corresponding to the fork holder, against which the zero position spring presses the razor blade unit and the razor blade unit can only be pivoted in one direction, preferably backwards, starting from this zero position. A U-shaped spring, a leaf spring, a leg spring or the like made of plastic or metal can be provided as the so-called zero-position spring. The zero-position spring is preferably arranged at the rear, upper end of the handle and is supported on the rear underside of the razor blade unit. In any case, this zero-position spring presses the razor-blade unit into the zero-position position, from which the razor-blade unit can only be pivoted in one direction. The swivel range of the razor blade unit is preferably 15 ° to 30 °. Together with the close arrangement of the swivel axis on the Cutting edge of the razor blade results in an optimal design of the razor with regard to its shaving properties, since the one-sided pivoting movement ensures a constant optimal contact pressure, which is not dependent on a central position.

Ein Ausführungsbeispiel eines Rasierapparates mit einem Ra­sierapparatekopf in Form einer Rasierklingeneinheit ist in den Zeichnungen dargestellt. In den Zeichnungen zeigen:

  • Fig. 1 eine perspektivische Ansicht einer Rasierklingen­einheit vor dem Einsetzen der Doppelrasierklinge von oben in das Kunststoffgehäusse;
  • Fig. 2 die Rasierklingeneinheit aus Fig. 1 nach dem Ein­setzen der Doppelrasierklinge und nach Umwickeln mit Draht sowie vor dem Aufschieben einer U-för­migen Kappe von hinten auf das Kunststoffgehäuse;
  • Fig. 3 die fertige Rasierklingeneinheit im fertigen Zu­stand, wobei eine Gabelhalterung eines Handgrif­fes zur Bildung eines Rasierapparates angedeutet ist;
  • Fig. 4 eine perspektivische Ansicht der Gabelfeder für die Halterung der Rasierklingeneinheit am vorde­ren Ende des Handgriffes sowie einer Nullagenfe­der in Form einer Blattfeder;
  • Fig. 5 die Federn aus Fig. 4 nach dem Einbau im Hand­griff des Rasierapparates;
  • Fig. 6 eine schematische Schnittdarstellung durch den Kopfbereich des Rasierapparates.
An embodiment of a razor with a razor head in the form of a razor blade unit is shown in the drawings. The drawings show:
  • Figure 1 is a perspective view of a razor blade unit before inserting the double razor blade from above into the plastic housing.
  • FIG. 2 shows the razor blade unit from FIG. 1 after inserting the double razor blade and after wrapping it with wire and before pushing on a U-shaped cap from behind onto the plastic housing;
  • 3 shows the finished razor blade unit in the finished state, a fork holder of a handle for forming a razor being indicated;
  • Figure 4 is a perspective view of the fork spring for holding the razor blade unit at the front end of the handle and a zero position spring in the form of a leaf spring.
  • 5 shows the springs from FIG. 4 after installation in the handle of the razor;
  • Fig. 6 is a schematic sectional view through the head region of the razor.

In den Fig. 1 bis 3 sind die verschiedenen Phasen des Zusam­menbaus einer Rasierklingeneinheit 1 dargestellt, während Fig. 6 in einer schematischen Schnittdarstellung einen kompletten Rasierapparat 2 zeigt, bei dem die Rasierklingeneinheit 1 aus den Fig. 1 bis 3 am vorderen Ende eines Handgriffes 3 befe­stigt ist. Dieser Handgriff 3 bzw. Teile davon sind in den Fig. 4 und 5 dargestellt.1 to 3, the various phases of the assembly of a razor blade unit 1 are shown, while Fig. 6 shows a schematic sectional illustration of a complete shaving apparatus 2, in which the razor blade unit 1 from FIGS. 1 to 3 is attached to the front end of a handle 3. This handle 3 or parts thereof are shown in FIGS. 4 and 5.

Die Rasierklingeneinheit 1 besteht aus einem einstückigen Kunststoffgehäuse 4. Dieses weist eine vordere Führungsleiste 5, zwei Seitenwände 6 sowie im Innern eine Klingenplattform 7 auf.The razor blade unit 1 consists of a one-piece plastic housing 4. This has a front guide bar 5, two side walls 6 and a blade platform 7 on the inside.

In dieses Kunststoffgehäuse 4 der Rasierklingeneinheit 1 wird eine Doppelrasierklinge bestehend aus den beiden Rasierklingen 8,8′ von oben durch eine im Kunststoffgehäuse 4 ausgebildete Öffnung 9 eingesetzt. Zu diesem Zweck sind die beiden Rasier­klingen 8,8′ an einem flachen, länglichen, quaderförmigen Ab­standhalter 10 derart unlösbar befestigt, daß der Abstandhal­ter 10 sandwichartig zwischen den beiden Rasierklingen 8,8′ festgelegt ist. Die Rasierklingen 8,8′ sowie der Abstandhalter 10 bilden somit eine sogenannte Rasierklingen/Abstandhalter-­Einheit 11. Dabei ist der Abstandhalter 10 etwas länger als die beiden Rasierklingen 8,8′, so daß der Abstandhalter 10 etwas über die Enden der Rasierklingen 8,8′ übersteht. Korres­pondierend zu diesen Überständen weist die Klingenplattform 7 der Rasierklingeneinheit 1 beidseitig im Bereich der Seiten­wände 6 jeweils eine Ausnehmung 12 auf.In this plastic housing 4 of the razor blade unit 1, a double razor blade consisting of the two razor blades 8,8 'is inserted from above through an opening 9 formed in the plastic housing 4. For this purpose, the two razor blades 8, 8 'are attached to a flat, elongated, cuboid spacer 10 in such a manner that the spacer 10 is sandwiched between the two razor blades 8, 8'. The razor blades 8,8 'and the spacer 10 thus form a so-called razor blade / spacer unit 11. The spacer 10 is somewhat longer than the two razor blades 8,8', so that the spacer 10 slightly over the ends of the razor blades 8, 8 'survives. Corresponding to these projections, the blade platform 7 of the razor blade unit 1 has a recess 12 on both sides in the region of the side walls 6.

Wie in Fig. 1 angedeutet ist, wird die Rasierklingen/Abstand­halter-Einheit 11 von oben in Richtung des Pfeiles P in das Kunststoffgehäuse 4 auf die Klingenplattform 7 aufgesetzt. An­schließend wird, wie in Fig. 2 zu erkennen ist, das Kunst­stoffgehäuse 4 zusammen mit der eingesetzten Rasierklingen/Ab­standhalter-Einheit 11 mit Draht 13 umwickelt.As indicated in Fig. 1, the razor blade / spacer unit 11 is placed from above in the direction of arrow P in the plastic housing 4 on the blade platform 7. Subsequently, as can be seen in FIG. 2, the plastic housing 4 is wrapped with wire 13 together with the razor blades / spacer unit 11 used.

Da bislang die Rasierklingen/Abstandhalter-Einheit 11 nur lose in die Öffnung 9 des Kunststoffgehäuses 4 eingesetzt ist und lediglich durch den Draht 13 gehalten wird, muß eine spezielle Fixierung der Rasierklingen/Abstandhalter-Einheit 11 innerhalb des Kunststoffgehäuses 4 vorgesehen werden. Zu diesem Zweck dient eine Kappe 14 mit einem im wesentlichen U-förmigen Quer­schnittsprofil. Die über die gesamte Länge des Kunststoffge­häuses 4 sich erstreckende Kappe 14 weist an der Oberseite eine Rasteinrichtung 15 auf. Diese besteht aus endseitigen nach vorne sich erstreckenden Rastarmen 16, die an ihren vor­deren Enden jeweils eine Rastnase 17 aufweisen. Korrespon­dierend zu diesen Rastnasen 17 weist das Kunststoffgehäuse 4 jeweils eine Rastaufnehmung 18 auf.Since so far the razor blades / spacer unit 11 is only loosely inserted into the opening 9 of the plastic housing 4 and is only held by the wire 13, a special fixation of the razor blades / spacer unit 11 must be provided within the plastic housing 4. A cap 14 with an essentially U-shaped cross-sectional profile is used for this purpose. The cap 14, which extends over the entire length of the plastic housing 4, has a latching device 15 on the upper side. This consists of end-side latch arms 16 which each have a latch 17 at their front ends. Corresponding to these locking lugs 17, the plastic housing 4 each has a locking recess 18.

Wie in Fig. 2 zu erkennen ist, wird die Kappe 14 in Richtung des Pfeiles P′ von hinten auf das Kunststoffgehäuse 4 derart aufgeschoben, daß die Rastnasen 17 der Kappe 14 in den Rast­ausnehmungen 18 im Kunststoffgehäuse 4 einrasten. Dieser fer­tige Montagezustand der Rasierklingeneinheit 1 ist in Fig. 3 dargestellt. Indem die Oberseite der Kappe 14 auf der Rasier­klingen/Abstandhalter-Einheit 11 aufliegt, ist diese fest auf der Klingenplattform 7 des Kunststoffgehäuses 4 fixiert.As can be seen in Fig. 2, the cap 14 is pushed in the direction of arrow P 'from behind onto the plastic housing 4 such that the locking lugs 17 of the cap 14 snap into the recesses 18 in the plastic housing 4. This finished assembly state of the razor blade unit 1 is shown in FIG. 3. Because the top of the cap 14 rests on the razor blade / spacer unit 11, the latter is fixed firmly on the blade platform 7 of the plastic housing 4.

Zur Bildung eines Rasierapparates 2 ist zu der Rasierklingen­einheit 1 ein Handgriff 3 vorgesehen. Dieser weist an seinem vorderen Ende eine spezielle Gabelhalterung 19 auf, mittels der der Handgriff 3 in der Rasierklingeneinheit 1 eingerastet werden kann.To form a razor 2, a handle 3 is provided for the razor blade unit 1. This has a special fork holder 19 at its front end, by means of which the handle 3 can be snapped into the razor blade unit 1.

Diese Gabelhalterung 19 besteht aus einer Feder 20 in Form einer Drahtfeder. Diese ist in Fig. 4 für sich alleine ohne den Handgriff 3 dargestellt. Diese Feder 20 besteht zunächst aus einem U-förmigen Grundfederelement 21, dessen vordere Schenkelenden senkrecht nach außen gebogen sind und Gabelarme 22 bilden. Die vorderen Enden der Gabelarme 22 sind dabei S-förmig gebogen und bilden Lagerzapfen 23.This fork holder 19 consists of a spring 20 in the form of a wire spring. This is shown in FIG. 4 on its own without the handle 3. This spring 20 initially consists of a U-shaped base spring element 21, the front leg ends of which are bent vertically outwards and form fork arms 22. The front ends of the fork arms 22 are bent in an S-shape and form bearing pins 23.

In Fig. 5 ist gezeigt, wie die Feder 20 der Gabelhalterung 19 im Vorderbereich des Handgriffs 3 angeordnet ist. Die Basis des U-förmigen Grundfederelements 21 ist dabei innerhalb des Handgriffes 3 derart fixiert, daß sich die Schenkel nach vorne hin erstecken. Die Gabelarme 22 kommen dabei in einem T-förmige Fortsatz 24 des Handgriffs 3 zu liegen. Wie in Fig. 5 zu erkennen ist, liegen die Schenkel des Grundfederelements 21 im vorderen Bereich frei. Dadurch werden Betätigungsbe­reiche B gebildet, so daß durch Zusammendrücken der Schenkel des Grundfederelements 21 die Lagerzapfen 23 der Feder 20 nach innen aufeinander zu verschwenkt werden können. Dies ist durch die Pfeile P˝ angedeutet. Nach Loslassen kehren die Lagerzap­fen 23 wieder in ihre Ausgangsstellung zurück.FIG. 5 shows how the spring 20 of the fork holder 19 is arranged in the front area of the handle 3. The base of the U-shaped base spring element 21 is fixed within the handle 3 in such a way that the legs extend forward. The fork arms 22 come to lie in a T-shaped extension 24 of the handle 3. As can be seen in FIG. 5, the legs of the basic spring element 21 are exposed in the front area. As a result, actuation areas B are formed so that the bearing pins 23 of the spring 20 can be pivoted inwards toward one another by compressing the legs of the base spring element 21. This is indicated by the arrows P˝. After releasing the bearing pins 23 return to their starting position.

Weiterhin ist in den Fig. 4 und 5 eine sogenannte Nullagenfe­der 25 erkennbar. Diese ist in dem dargestellten Ausführungs­beispiel als Blattfeder aus Kunststoff oder Metall ausgebildet und mit ihrem unteren Ende im Handgriff 3 gelagert. Statt der Ausbildung als Blattfeder kann sie auch als U-Feder, als Schenkelfeder etc. ausgebildet sein. Die technische Bedeutung der Nullagenfeder 25 wird später anhand Fig. 6 erläutert.Furthermore, a so-called zero-position spring 25 can be seen in FIGS. 4 and 5. In the exemplary embodiment shown, this is designed as a leaf spring made of plastic or metal and is mounted with its lower end in the handle 3. Instead of being designed as a leaf spring, it can also be designed as a U-spring, as a leg spring, etc. The technical meaning of the zero position spring 25 will be explained later with reference to FIG. 6.

Zur Befestigung des Handgriffs 3 an der Rasierklingeneinheit 1 werden zunächst die Lagerzapfen 23 in der beschriebenen Weise nach innen verschwenkt. Dadurch kann die Gabelhalterung 19 in die Rasierklingeneinheit 1 eingeführt werden, wie dies insbe­sondere in den Fig. 3 und 6 erkennbar ist. Die Rasierklingen­einheit 1 ist dabei im Bereich ihrer Seitenwände 6 jeweils mit einer Aussparung 26 ausgestattet, in die die Lagerzapfen 23 der Gabelhalterung 19 nach Loslassen der Feder 20 einrasten. Wie insbesondere in Fig. 6 erkennbar ist, liegt die durch die Lagerzapfen 23 definierte Schwenkachse S im Bereich der Schneidkante 27 der vorderen Rasierklinge 8, d.h. die Schwenk­achse S verläuft vor dieser Schneidkante 27 parallel zu ihr sowie etwas versetzt unterhalb der Ebene dieser vorderen Ra­sierklinge 8. Wie in Fig. 6 darüber hinaus erkennbar ist, drückt die Nullagenfeder 25 die Rasierklingeneinheit 1 nach vorne gegen einen Anschlag 28 innerhalb des Kunststoffgehäuses 4. Während des Rasiervorganges ist somit die Rasierklingenein­heit 1 nur nach hinten entgegen der Kraft der Nullagenfeder 25 verschwenkbar, wobei der Schwenkbereich zwischen 15° und 30° beträgt.To attach the handle 3 to the razor blade unit 1, the journals 23 are first pivoted inward in the manner described. As a result, the fork holder 19 can be inserted into the razor blade unit 1, as can be seen in particular in FIGS. 3 and 6. The razor blade unit 1 is each provided in the region of its side walls 6 with a recess 26 into which the bearing pins 23 of the fork holder 19 engage after the spring 20 has been released. As can be seen in particular in FIG. 6, the pivot axis S defined by the bearing pin 23 lies in the region of the cutting edge 27 of the front razor blade 8, ie the pivot axis S runs in front of this cutting edge 27 parallel to it and somewhat offset below the plane of this front razor blade 8 As can also be seen in FIG. 6, the zero-position spring 25 presses the razor blade unit 1 forward against a stop 28 inside the plastic housing 4. During the shaving process, the razor-blade unit 1 can thus only be pivoted backwards against the force of the zero-position spring 25, the pivoting range being between 15 ° and 30 °.

BezugszeichenlisteReference symbol list

  • 1 Rasierklingeneiheit1 razor blade unit
  • 2 Rasierapparat2 shaver
  • 3 Handgriff3 handle
  • 4 Kunststoffgehäuse4 plastic housings
  • 5 Führungsleiste5 guide bar
  • 6 Seitenwand6 side wall
  • 7 Klingenplattform7 blade platform
  • 8 Rasierklinge8 razor blade
  • 8′ Rasierklinge8 ′ razor blade
  • 9 Öffnung9 opening
  • 10 Abstandhalter10 spacers
  • 11 Rasierklingen/Absandhalter-Einheit11 razor blades / sanding unit
  • 12 Ausnehmung12 recess
  • 13 Draht13 wire
  • 14 Kappe14 cap
  • 15 Rasteinrichtung15 locking device
  • 16 Rastarm16 locking arm
  • 17 Rastnase17 latch
  • 18 Rastausnehmung18 notch
  • 19 Gabelhalterung19 fork bracket
  • 20 Feder20 spring
  • 21 Grundfederelement21 basic spring element
  • 22 Gabelarm22 fork arm
  • 23 Lagerzapfen23 journals
  • 24 Fortsatz24 extension
  • 25 Nullagenfeder25 zero position spring
  • 26 Aussparung26 recess
  • 27 Schneidkante27 cutting edge
  • 28 Anschlag28 stop
  • P PfeilP arrow
  • P′ PfeilP ′ arrow
  • P˝ PfeilP˝ arrow
  • B BetätigungsbereichB area of operation
  • S SchwenkachseS swivel axis

Claims (13)

1. Rasierapparat (2) bestehend aus einer Rasierklingeneinheit (1), bei der eine Rasierklinge (8,8′) unlösbar In einem Kunststoffgehäuse (4) eingebettet ist, sowie aus einem Handgriff (3), an dessen vorderem Ende die Rasierklingeneinheit (1) mittels einer öffen- und schließ­baren Gabelhalterung (19) ausgehend von einer federbelaste­ten Nullage um eine zur Schneidkante (27) der Rasierklinge (8,8′) parallele Schwenkachse (5) verschwenkbar gelagert ist,
dadurch gekennzeichnet,
daß sich die Schwenkachse (S) der Gabelhalterung (19) im Bereich der Schneidkante (27) der Rasierklinge (8,8′) erstreckt.1. razor (2) consisting of a razor blade unit (1), in which a razor blade (8,8 ') is non-detachably embedded in a plastic housing (4), and a handle (3), at the front end of which the razor blade unit (1 ) is pivotally mounted by means of an openable and closable fork holder (19) starting from a spring-loaded zero position about a pivot axis (5) parallel to the cutting edge (27) of the razor blade (8,8 ′),
characterized,
that the pivot axis (S) of the fork holder (19) extends in the region of the cutting edge (27) of the razor blade (8,8 '). 2. Rasierapparat nach Anspruch 1 mit einer Doppelrasierklinge (8,8′) dadurch gekennzeichnet, daß sich die Schwenkachse (S) der Gabelhalterung (19) im Bereich der Schneidkante (27) der vordersten Rasierklinge (8) erstreckt.2. Razor according to claim 1 with a double razor blade (8,8 '), characterized in that the pivot axis (S) of the fork holder (19) extends in the region of the cutting edge (27) of the foremost razor blade (8). 3. Rasierapparat nach Anspruch 1 oder 2, dadurch gekennzeich­net, daß die Schwenkachse (S) vor der Schneidkante (27) der Rasierklinge (8,8′) verläuft.3. Razor according to claim 1 or 2, characterized in that the pivot axis (S) in front of the cutting edge (27) of the razor blade (8,8 '). 4. Rasierapparat nach einem der Ansprüche 1 bis 3, dadurch ge­kennzeichnet, daß die Schwenkachse (S) etwas unterhalb der Ebene der Rasierklinge (8,8′) angeordnet ist.4. Razor according to one of claims 1 to 3, characterized in that the pivot axis (S) is arranged slightly below the plane of the razor blade (8,8 '). 5. Rasierapparat nach einem der Ansprüche 1 bis 4, dadurch ge­kennzeichnet, daß die Schwenkachse (S) unterhalb einer vorderen Führungsleiste (5) angeordnet ist.5. Shaver according to one of claims 1 to 4, characterized in that the pivot axis (S) is arranged below a front guide bar (5). 6. Rasierapparat nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Rasierklingeneinheit (1) im Bereich der Seitenwände (6) des Kunststoffgehäuses (4) an der Ga­belhalterung (19) gelagert ist.6. Razor according to one of claims 1 to 5, characterized in that the razor blade unit (1) in the region of the side walls (6) of the plastic housing (4) is mounted on the fork holder (19). 7. Rasierapparat nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Gabelhalterung (19) als eine im Handgriff (3) gelagerte Feder (20), insbesondere Draht­feder, ausgebildet ist, die einen Betätigungsbereich (B) für die Finger des Benutzers zum Ausrasten der Feder (20) aus der Rasierklingeneinheit (1) aufweist.7. Shaver according to one of claims 1 to 6, characterized in that the fork holder (19) as a in the handle (3) mounted spring (20), in particular wire spring, is formed, which has an actuation area (B) for the fingers of the user for disengaging the spring (20) from the razor blade unit (1). 8. Rasierapparat nach Anspruch 7, dadurch gekennzeichnet, daß die Feder (20) ein U-förmiges Grundfederelement (21) auf­weist, dessen vordere Schenkelenden in der Ebene des Grund­federelements (21) liegende sowie nach außen abstehende Ga­belarme (22) aufweisen, die mit ihren vorderen Enden in entsprechenden Aussparungen (26) in der Rasierklingenein­heit (1) eingerastet sind und die Lagerstellen definieren.8. Shaver according to claim 7, characterized in that the spring (20) has a U-shaped base spring element (21) whose front leg ends in the plane of the base spring element (21) lying and outwardly projecting fork arms (22) with their front ends are engaged in corresponding recesses (26) in the razor blade unit (1) and define the bearing points. 9. Rasierapparat nach Anspruch 8, dadurch gekennzeichnet, daß die vorderen Enden der Gabelarme (22) jeweils S-förmig in der Ebene der Feder (20) gebogen sind und Lagerzapfen (23) bilden.9. A shaver according to claim 8, characterized in that the front ends of the fork arms (22) are each S-shaped in the plane of the spring (20) and form bearing pins (23). 10. Rasierapparat nach einem der Ansprüche 1 bis 9, dadurch ge­kennzeichnet, daß die Rasierklingeneinheit (1) einen mit der Gabelhalterung (19) korrespondierenden Anschlag (28) für die Nullage aufweist, gegen den die Nullagenfeder (25) die Rasierklingeneinheit (1) drückt und wobei die Rasier­klingeneinheit (1) ausgehend von dieser Nullage nur in eine Richtung, vorzugsweise nach hinten verschwenkbar ist.10. Razor according to one of claims 1 to 9, characterized in that the razor blade unit (1) has a stop (28) corresponding to the fork holder (19). for the zero position against which the zero position spring (25) presses the razor blade unit (1) and the razor blade unit (1) can only be pivoted in one direction, preferably backwards, starting from this zero position. 11. Rasierapparat nach Anspruch 10, dadurch gekennzeichnet, daß die Nullagenfeder (25) eine U-förmige Feder, eine Blatt­feder, eine Schenkelfeder oder dgl. aus Kunststoff oder Metall ist.11. Shaver according to claim 10, characterized in that the zero-layer spring (25) is a U-shaped spring, a leaf spring, a leg spring or the like. Made of plastic or metal. 12. Rasierapparat nach Anspruch 10 oder 11, dadurch gekenn­zeichnet, daß die Nullagenfeder (25) am hinteren, oberen Ende des Handgriffs (3) angeordnet und an der hinteren Unterseite der Rasierklingeneinheit (1) abgestützt ist.12. A razor according to claim 10 or 11, characterized in that the neutral spring (25) is arranged at the rear, upper end of the handle (3) and is supported on the rear underside of the razor blade unit (1). 13. Rasierapparat nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, daß der Schwenkbereich der Rasierklingeneinheit 15° bis 30° beträgt.13. Razor according to one of claims 10 to 12, characterized in that the pivoting range of the razor blade unit is 15 ° to 30 °.
EP88114642A 1988-09-08 1988-09-08 Razor Expired - Lifetime EP0357821B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8811355U DE8811355U1 (en) 1988-09-08 1988-09-08

Publications (2)

Publication Number Publication Date
EP0357821A1 true EP0357821A1 (en) 1990-03-14
EP0357821B1 EP0357821B1 (en) 1991-11-06

Family

ID=6827698

Family Applications (1)

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EP88114642A Expired - Lifetime EP0357821B1 (en) 1988-09-08 1988-09-08 Razor

Country Status (9)

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US (1) US4970784A (en)
EP (1) EP0357821B1 (en)
JP (1) JPH02107290A (en)
AT (1) ATE69192T1 (en)
AU (1) AU620642B2 (en)
BR (1) BR8904487A (en)
DE (2) DE3866104D1 (en)
ES (1) ES2027742T3 (en)
HK (1) HK123994A (en)

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TR26884A (en) * 1991-11-27 1994-08-22 Gillette Co Safe tras machine including a rotating blade unit

Also Published As

Publication number Publication date
ES2027742T3 (en) 1992-06-16
DE3866104D1 (en) 1991-12-12
ATE69192T1 (en) 1991-11-15
AU4116789A (en) 1990-03-15
JPH02107290A (en) 1990-04-19
US4970784A (en) 1990-11-20
HK123994A (en) 1994-11-18
EP0357821B1 (en) 1991-11-06
AU620642B2 (en) 1992-02-20
BR8904487A (en) 1990-04-24
DE8811355U1 (en) 1988-10-20

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