|Publication number||US2814108 A|
|Publication date||Nov 26, 1957|
|Filing date||Mar 8, 1957|
|Priority date||Oct 10, 1956|
|Publication number||US 2814108 A, US 2814108A, US-A-2814108, US2814108 A, US2814108A|
|Inventors||Bassett William E|
|Original Assignee||Bassett William E|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (2), Referenced by (39), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Nov. 26, 1957 w. E. BASSETT COMBINED TOOL Original Filed Oct. 10, 1956 INVENTOR Mum/w E. 84.9.9577
ATTORNEYS 2,814,108 Patented Nov. 26, 1957 fiice COMBINED TOOL William E. Bassett, Woodbridge, Conn.
Original application October 10, 1956, Serial No. 615,200,
now Patent No. 2,798,290, dated July 9, 1957. Divided and this application March 8, 1957, Serial No. 648,455
4 Claims. (Cl. 30-152) My invention relates to a combined tool involving a case and plural tool elements protected by the case and selectively available for use. This application is a division from my copending application, Serial No. 615,200, filed October 10, 1956, now Patent No. 2,798,290.
it is an object of the invention to provide an improved device of the character indicated.
It is another object to provide a simplified combined tool of the character indicated, wherein the selected tool may be removed and positioned for use without disturbing the position of the other tool elements.
It is also an object to provide an improved device of the character indicated, wherein a plurality of tool elements are supported on the same pivot axis and in which detent means formed integrally out of the tool elements and out of the case serve to retain selected positions of selected tool elements independently of each other.
It is a general object to meet the above objects with a very simple construction which will not wear loose, which will avoid the use of washers, and which will require no more parts than merely the separate tool elements, the case, and the means on which they are pivoted.
Other objects and various further features of novelty and invention will be pointed out or will occur to those skilled in the art from a reading of the following specification, in conjunction with the accompanying drawings. In said drawings, which show, for illustrative purposes only, preferred for-ms of the invention:
Fig. 1 is an exploded view in perspective showing a disassembled combined tool of my invention;
Fig. 2 is a view in perspective of the fully assembled tool of Fig. 1, with the tool elements held in closed position;
Fig. 3 is an enlarged longitudinal sectional view through the device of Fig. 2, with an outer or side tool element removed;
Fig. 4 is an enlarged left-end view of the assembly of Fig. 2;
Fig. 5 is a sectional view in the plane 5-5 of Fig. 2;
. Fig. 6 is an inverted perspective view of one end of a tool case representing a modification of the variety displayed in Fig. 1;
Fig. 7 'is a fragmentary longitudinal sectional view similar to Fig. 3, but illustrating the modified combination using the case of Fig. 6;
Fig. 8 is a fragmentary perspective view of an end of another modified case;
'- Fig. 9 is a fragmentary longitudinal sectional view to illustrate cooperation of the parts with the modification of Fig. 8;
Fig. 10 is a view similar to Fig. 9, but illustrating a still further modification; I
Fig. 11 is a view similar toFig. 1 to illustrate a modified assembly; and
Fig. 12 is a sectional view similar to Fig- 5 and taken in the plane 12-12 of Fig. -11. I
' Briefly stated, my invention contemplates a combined tool of utmost simplicity, comprising essentially only a case, a plurality of bladed tool elements, and a single pivot-fastening means securing the blade elements to the case. This case is of sheet material, preferably spring steel, of channel section defining upstanding side walls connected by a base. Novel spacer and detent mechanisms are described for permitting the easy independent operation of a selected one of the various blade members and for releasably holding a selected one or more of the blade members in closed or in open position.
Referring to Figs. 1 to 5 of the drawings, the invention is shown in application to a tool comprising five parts, namely, a case 10, three tool elements 11-12-13, and a pivot fastener 14, such as a rivet or eyelet. The tool elements are formed of flat stock, and may be referred to as blade members. Blade member 11 has a roughened surface to serve as a file and is locally recessed at 15 for engagement by a fingernail to remove the same. Blade member 12 is contoured as a bottle-cap remover and is also locally recessed at 16 for fingernail engagement. Blade member 13 is formed with a knife edge and may be locally recessed at 17 for fingernail engagement. The case 10 is formed from a single piece of sheet metal, folded along spaced elongated edges 18-19 to define opposed upstanding side walls 20-21 between which the blade members 11-12-13 are removably received. The upper edge of each of the side walls may be recessed, as at 22, to provide fingernail access to the various recessed portions 15-16-17 of the blade elements. Aligned openings 22 in the side walls 20-21 are located near the base 27 in order to clear the outer ends of all blades 11-12-13 (when closed), so that openings 22' may, for example accommodate a key chain or the like (not shown).
', In order to provide easy-acting (that is, non-binding) frictional retention of the blades 11-12-13, regardless of angular position, each of the outer blades 11-13 is shown formed with a dimple or bump 23-24, olfset from the pivot axis and projecting laterally to ride on the adjacent flat surface of the central blade member 12. Since the blades 11-13 are cut from sheet stock, the formation of each dimple or bump 23-24 necessarily involves formation of corresponding recesses 23-24' on the blade surfaces immediately adjacent the side walls 20-21 (see Fig. 5).
In accordance with the invention, I provide further dimples or bumps 25-26 in the side walls 20-21 of the case, said further bumps 25-26 being in register with the recesses 23'-24' for one desired angle of retention of the blade members. For the form shown, this desired retention angle is for the blade-closed position; thus, when the nail-file blade 11 is moved to the closed position between side walls 20-21, the bump 25 will fall into the socket of recess 23' to locate blade 11 in the closed position.
Preferably, the rivet or eyelet 14 is tightly swaged to the side walls so as to hold said walls frictionally against the blade members 11-12-13. Thus, as a selected blade 11 or 13 is moved out of the closed position, one
of the bumps 25-26 will ride out of the socket (23-24') in which it is received, so as to more firmly axially compressionally load all blade members against each other at their points of contact. This will mean a slight sepa ration of one of the side walls (20-21) from the adjacent selected blade member (11 or 13) as such blade member is lifted out of the closed position.
Thus, while such blade member 11 or 13 is being positioned, its only points of axial thrust-bearing contact with the adjacent parts 12 and 20-21 (as the case may be) will be localized at one of the bumps 23-24-25-26,
and easy action is assured for all angular positions of such blade member. Once the file blade 11 has been lifted, ready access is presented to the central blade 12 for removal, and the same essentially single-point axialthrust-bearing contact characterizes suspension of the blade 12 as that described for blades 11 or 13, so that for all angular positions of the central blade 12, easy action and firm, resilient retention are assured.
In accordance with a further feature of the invention, I provide, integrally with the blade members 11-12-13 and with the case 10, coacting spring-detent means for retention of one of the extreme positions of movement of a selected blade member, it being a particular feature that the detent part integral with the case serves the detent parts of all the blade members in common. For the form shown, the position of blade retention is the outer position, shown for the file blade 11 in Fig. 3.
The pivoted end of each of the blade members may be generally arcuate at a radius to clear the inner surface of the base 27, but at one angular location, as at 28 for the blade 11, and at 28-28" for the blades 12-13, I provide a radially projecting detent lobe. The projection of lobe 28 is preferably of radial extent (about the pivotal axis) slightly exceeding the space between the base 27 and the pivotal axis; thus, for detent action to take place, one of thelobes 28 will have to bear directly on the base 27.
I prefer that the base 27 be locally weakened at the location of'contact with lobe 28, and in Fig. 3 I show that the base 27 has been slitted to define an integral leaf spring 29 to resiliently ride the arcuate blade end, including lobe 28. Preferably, the lobe 28 is so located on the blade 11 as to assume a position on spring 29 past dead center, for the relationship shown in Fig. 3. By this I mean that lobe 28 will have had to pass through the vertical plane (said plane being through the pivot axis and normal to the base 27), just before assuming; theposition shown in Fig. 3.
The slits defining the spring 29 preferably terminate short of the pivot end of the case 11 so that an integral connecting piece or bridge 30 defines a rigid stop to locate the extended position of a selected tool edge, said tool being. provided with a notch or recess 31 to be engaged by stop 30. The spring 29 is necessarily defined by two elongated slits connected by a transverse slit 32. Preferably, this. transverse slit 32 is near the outer end of the caselt), so that the main body of the case may provide primary; support and reference for the spring 29. The longitudinal slits defining the spring 29 may be and preferably are cut on the folds defining edges 18-19 of the case.10'.
If desired, inwardly directed bumps 33-34 may be formed in the. side walls 20-21 near the opposite end of the tool. and in position to engage the adjacent side surfaces of the outer blade members 11-13. It will be appreciated that if the case 16 is made of sufficiently strong stock, the simultaneous closure of all tool elements 11-12-13 into the position shown in Fig. 4 will necessarily involve engagement with both dimples 33-34, thereby slightly outwardly deforming the side walls 20-21 (the deformation being shown exaggerated in Fig. 4), so that by reaction, the adjacent side faces of the various blade members 11-12-13 may be in frictional contact. All blade members are thus securely retained in the closed position so that, when the tool is carried in ones pocket, the tool elements are not at all likely to drop out of closed position.
In Figs. 6 and 7, I show an alternative means for detent-retention of the blade members in the open position. Fig. 7'illustrates that detent action involves coaction between a lobe, such as the lobe, 28 on blade 41, and a transverse slot or opening 42. in the base 43 of case 44.
If desired, a second lobe 45 may be formed at:a location.
substantially diametrically opposed to the. lobe 28'so. as
to also engage the slot 42 with detent action, but for the closed-blade position, as will be understood.
Figs. 8 and 9 illustrate a further means of detent-retention of the blades in open position, and in Fig. 9 the pivoted end of a blade 46 is shown formed with a discontinuity, such as a recess 47, to receive an inwardly pressed spring portion 48 formed integrally out of the base 49 of case 50. The spring portion 48 may be defined between laterally spaced longitudinal slits 51-52 near the location of vertical support for the blade 46. If desired, a second recessed discontinuity 53 may also be formed in the pivoted end of the blade 46, at a diametrically opposite location, to releasably retain the closed position of the blade.
In Fig. 10, I show a still further alternative in which detent action again involves cooperation between a part of a blade 54 and the base 55 of a case 56. However, in Fig. 10, no special formation is required on the base 55, and spring action is achieved through locally weakened parts of the blade 54. As shown, a first discontinuity, bump, or projection 57 on the pivoted end of blade 54 is formed on a spring, defined by slitting blade 54 at 58, so that as blade 54 is moved into the position shown in Fig. 10, the base 55 may deflect bump 57 radially inwardly. For the retained position shown in Fig. 10, the bump 57 preferably passes the dead-center position, as defined above. If desired, the pivoted end of blade 54 may be further slitted at 59 so that a second and diametrically opposite bump 60 may similarly retain the blade 54 in closed position.
The assembly of Figs. 11 and 12 may in all respects resemble that described for Figs. 1 to 5, except that an extended arcuate recess 61 is provided on one face of the central blade element 12.. Since the parts correspond so closely with those of Figs. 1 to 5, they have been given the same reference numerals. The purpose of the recess 61' is to reduce the overall width requirements of the assembly and to. permit accommodation of the bump 23 of blade member 11 without spacing blade 11 from blade 12. The arcuate extent of recess 61 preferably exceeds about the pivot axis so that blade 12 may offer no impediment to movement of the blade 1.1, regardless of the position of the blade 11 with respect to blade 12. Also the limit 61' of recess 61 is preferably so located as to engage dimple 23 of blade 11' when blade 11 is closed, thereby providing a more positive locking action to retain blade. 12 closed as long asblade 11 is closed, it being understood that when blade 11 is closed, blade 11 is positively retained by detent action at 25-23; thus, all blades, including even the central blade 12, are positively referenced to the case 10 when closed.
It Will be seen that I have described basically simple toolv constructions involving an absolute minimum of parts and yet featuring positive retention of parts in selected positions. In particular, I provide assurance against tool elements shaking out of position when not in use, and there is positive'detent action to hold any selected tool element in the open position. For intermediate positions, smooth thrust-bearing action is provided with sufficient friction to avoid any undue looseness.
While I have described the invention in detail for the preferred forms illustrated, it will be understood that modifications may be made within the scope of the invention as defined in the claims which follow.
1. In a device of the character indicated, an elongated channel having a base and opposed upstanding side walls and defining a retaining case, an elongated blade member pivotally supported on an axis extending between saidside walls, said blade member being movablefrom a closed position between said side walls to an open position projecting away from said case, said blade member being formed near the pivotally supported endthereof with a retaining projection at one angular location about said' axis, said projection being so located on said blade member as to frictionally engage a part of said base When said blade member is in the full-open extended position, said part of said base being integrally joined to adjacent portions of both said side walls, said blade end being slitted at a location radially intermediate said projection and said axis, whereby said end is locally weakened at said projection and said projection can be resiliently and radially inwardly deflected to ride said base to hold said blade member in the full-open extended position.
2. In a tool of the character indicated, a handle comprising a single-piece sheet-metal channel having a base and opposed upstanding side walls, said base integrally joining said side Walls at one end and thereby defining an abutment at said one end, and an elongated blade member having one end thereof pivotally mounted between said side walls near said abutment, said blade member having an edge surface to cooperate with said base in the fullopen extreme position relatively to said handle and in engagement with said abutment, thereby defining a line of radial stress on said blade member when in open position, said line extending from the pivot mounting to the point of contact with said base, said blade member being slitted generally transversely of said line to radially weaken the support of said surface when said blade member is in the full-open extreme position.
3. In a tool of the character indicated, a handle comprising a single-piece sheet-metal channel having a base and opposed upstanding side walls, said base integrally joining said side walls at one end, and an elongated blade member having one end thereof pivotally mounted between said side walls near said end, said base at said end extending longitudinally beyond the point of pivotal support, thereby defining an abutment at said end, said blade member being in engagement with said abutment when in the full-open extreme position relatively to said handle,
whereby a radial line normal to said base may be defined on said blade member when in said full-open position, said blade member having a surface including a radially outward projection to cooperate with said base, said projection contacting said base on the side of said normal radial line away from said one end when said blade member is in said full-open position, said blade member being slitted generally transversely of said line, whereby said projection may be radially inwardly displaced as said blade member is swung between closed and open positions.
4. The tool of claim 3, in which said blade member includes a second similar projection at a location substantially diametrically opposite said first-mentioned projection, said blade member being slitted at a second location substantially diametrically opposite the location of the first-mentioned slit.
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|International Classification||B25F1/00, B25F1/04|