US2549542A - Razor blade holder - Google Patents

Description

April 17, 1951 c. B. sTAlR 2,549,542

RAzoR BLADE HOLDER Filed Aug. 20, 1949 'Bumm Patented Apr. 17, 1951 UNITED STATES PATENT y OFFICE 2,549,542v i RAzoR BLADEl HOLDER yCarlyle B. Stair, Glendale, Calif. v Application August 20, 1949, Serial No. 111,352

This invention relates to a holder kforrazor blades to enable theblade to bevused for various cutting and scrapingoperations, and particularly to a form thereof in which Ythe 4blade isfheld normally retracted and can be nreadily movedv out of 'the protecting portions ci the holder incident to use.

'I'he principal object of the invention is to provide a holder forsafety razor blades including spring means operable normally to retract the blade, and which, Vupon applying pressureincident to the normal manner of gripping the holder for use,l will operate to move the edge of the blade out of the holder.

Another object of the invention is to provide a holder for razor blades of the 'above character including means wherebyl the blade Vmay be locked in exposed or operative position.

Still another object ofthe invention is to provide a holder for safety razor blades having capacity tof retract and expose the edge of the blade at the will of theuser in which a single manually operable element serves both to move the blade into exposed positionv and, optionally, to lock the .blade inl exposed position.

A further object of the invention is to provide a'razor blade holder in which the blade is normally retracted by spring meansand in which the bladesare inserted throughv a'slot in one end of the holder; the insertion of one blade serving to eject the blade in the holder.

A still further object of the invention is to provide a razor blade holder having the above desirable characteristics which is composed of few parts of simple design, which is economical to manufacture, attractive in appearance and both reliable and safe in use.

With the above objects in view, together with such other objects and advantages as may subsequently appear, the invention resides in the parts, and in the construction, combination, and arrangement of parts, described in the following specification and illustrated in the accompanying drawings which form a part of said specification showing by way of example, one mode of execution of the invention and in which:`

Fig. 1 is a front elevation of a razor blade holder embodying the invention,

Fig. 2 is an end elevation of Fig. 1,

Fig. 3 is a rear elevation of the holder shown Y of the case being broken away to show details of interior construction,

1o '-claims.v (cl. sil-,162) v,

tion, respectively. y

The case of the device comprises a front mem- Fig. 4 is a side elevation of the interior face of the rear case member,

Fig. 5 is an elevation of the inner face of the front case member, v

Figs. 6,- 7 and 8 are front endv and rear elevations, respectively, of the blade manipulating element, Y y

Figs. 9 and `10 are transverse sectional views taken on the line 9-9 of Fig. 1 showing the relative positions of the case, the blade and the blade manipulating elements as the blade is retracted or exposed, respectively, and

Figs. 11, 12 and `13 are vertical sectional views taken on the lines II-II of Figs. 3 and 9 showing the relative positions of the case and the blade manipulating element when the blade is retracted, exposed, and locked in exposed posiber I having a rectangular openin'g`2 in the side face thereof, and on its inner face having a longitudinal slot 3 adapted to receive a tongue 4 on the inner face of the rear member 5. tionally, the member l is providedr with a pair of dowel pins 6, 6 which engage corresponding holes I, 1 in the member I. The upper ends of both members meet along the center line 8 of the case and are preferably cemented together. At

about their midpoints, the inner faces ofthe members I and 5 are provided with shallow, op-

posed longitudinal grooves 9 and I0 which combine to form a slot I0 sufficiently large to receive the reinforced head H of a single edge razor blade B. Below. the `grooves 9 and I0, the inner faces of the members I and 5 are spaced apart slightly more than the thickness of a razor blade. Thus, the case has openings extending from end to end thereof through which razor blades may be passed, asY will be later explained.

Disposed on the inner face of the member 5 adjacent the upper edge of the slot I0 isa rectangular recess I I and adjacent the lower edge thereof, the inner face of the member 5 is a second rectangu-lar recess I2 adapted to receive a double ended leaf spring I3, which is somewhat wider thanthe depthof the recess I2 (see Figs. 9 and 10) Vand the upper inturned ends vof which spring are engaged by the lower edge ofk Il' is provided with a V-shaped, longitudinallyVv extending lug i9 adapted to enter the rectangu- The upper cam face of 'thelug i' lar recess Il.

I9 engages the upper corner 2| of the recessY II and the lower face 22 engages the'upper edge of the head H of the razor blade. iThe element Il also includes a depending narrow flange 23, which is disposed in the lower portion ofthe recess I4 and which serves as a fulcrum point for' the movement of the element incident to its movement With the razor blade. At its upper end, the element Il' is provided with spaced, upwardly extending flange portions 24 and 25 adapted normally to fit into the spaces 26 .and 2l' adjacent the locking lugs I5. and I6.

When the device is not being used, the spring.

sure-on the portion- I8 thereof, the wedging ac-l tion of the cam member I9 will move both the member Il and the razor blade downwardly as shown in Fig. 10 exposingv the edge of the blade through the slot 28, extending along the lowerend of the case. This movement will bring the flanges 24 and 25 clear of the members I5 and I6 as shown inFig. l2, and, since the member I8 is of less length than the opening 2, it can be moved to the left as viewed in Fig. 1 or to the right as viewed in Fig. 2, bringing the flanges 24 and 25 opposite the locking lugs i5 and I 6, respectively, las shown in Fig.V 13, thus locking the member il in its inward position and consequently, locking the blade with the edge thereof exposed. Upon moving the element Il endwise of the case in the opposite direction, the action of the spring will be free to movev the blade upwardly with incident outward movement of the member I1.

To insert a blade in the device, it is necesary merely to move the blade endwise with the head thereof entering the slot formed by the opposed grooves 9 and Il] and the under edge of the head of one side of the blade will ride over the ends of the spring I3. When a new blade is to be inserted, such endwise insertion will operate simultaneouslyto push out the blade to be removed from the opposite end of the device.

' While the above described vform of the invention is adapted for a specic type of razor blade, of which there are several forms on the market, it will be appreciated 'that the'p'rinciples of the device can be adapted to'other forms of blades without departure from the invention.

All of the parts are of simple design, and are not of great depth so that the making -of molds to produce these parts in plastic is not expensive. The only metal part, aside from the razor blade, is the spring element and this too is of very simple design. The device is safe to use in that whenever it is not in use, the blade is retracted 4 into the case and therefore the device is safe to handle. At the same time, the device is large enough to permit it to be readily grasped in the hand for such operation as scraping paint, ripping seams, making erasures, and all of the other uses to which razor blades are put.

While in the foregoing specifications and drawings, I have disclosed one embodiment of my invention, I do not intend thereby to limit myself to the exact form there disclosed, and the invention'includes all such modiiications in the parts, and in the construction, combination and arrangement of parts, as shall come within the purvi'ewofithe appended claims.

I claim:

1. A holder for safety razor blades adapted to enable such blades to be used for scraping and cutting Auses comprising a case formed of mating halves,`the interiors of which combine to form a blade receiving cavity therein and having slots at each end to permit the insertion and removal of blades, spring means in said case operative to maintain a blade retracted and a manually operable element disposed in said cavity and having a, portion thereof protruding through an opening in said case operable to cause the'edge of a blade contained in said case to beprojected be-' yond said case'l Y 2. A holder for safety razor blades adapted to enable such blades to be used for scraping 'and cutting uses comprising a case formed of a pair of generally rectangular .members secured together along one side edge and part of the adjacent end edges and having the adjacent faces thereof along the other side edge and the rest of said end edges spaced apart to form a blade receiving slot, 'spring means in said casing constructed and arranged to normally maintain a blade in said case retracted, and a member in.

said case having a manually engageable surface extending through an opening in said case, operable to move said bladeV against saidV spring means so that the edge thereof is moved through said slot and exposed for use.

3. A holder for safety razor blades adapted to enable such blades to be used for scraping and cutting uses comprising a case formed of a pair of generally rectangular members secured together along one side edge and part of the adjacent end 'edges and having the adjacent faces thereof along the other side edge and the rest of said end edges spaced apart to form a blade receiving slot, spring means in said casing constructed and arranged. to normally maintain a blade in said case retracted, and a member in said case having a manually engageable surface extending through an opening in said case operable to move said blade against said spring means so that the edge thereof lis moved through said slot and exposed for use; said member and said case having interengaging portions effective to lock the blade in exposed position.

4. A holder for safety razor blades adapted to blades, spring means in said case operative to maintain a blade retracted and a manually operable element disposed in said cavity and having a portion thereof protruding through an opening in said case operable to cause the edge of a blade contained in said case to be projected beyond said "case; said element being operable in one direction to project the edge of the blade beyond said case and movable in another direction to lock the edge of the blade in said projected position.

5. A holder for safety razor blades adapted to enable such blades to be used for scraping and cutting uses comprising a case of generally rectangular side outline having an internal cavity and a blade receiving slot communicating with said cavity; said slot extending along one side edge of said case and part way along theportions of both end edges adjacent said side edge, an opening in one side wall of said case communicating with said cavity, a cam face on the side of said cavity remote from said side Wall, a blade operating element in said cavity having a manually engageable portion projecting through said opening and having a cam face engageable with said rst named cam face; said cam faces being so disposed that upon movement of said element by pressure on said manually engageable portion said element Will be moved bodily to cause the edge of a blade carried in said case to be projected through said slot.

6. A holder for safety razor blades adapted to enable such blades to be used for scraping and cutting uses comprising a case of generally rectangular side outline having an internal cavity and a blade receiving slot communicating with said cavity; said slot extending along one side edge of said case and part Way along the portions of both end edges adjacent said side edge, an opening in lone side wall of said case communicating with said cavity, a cam face on the side of said cavity remote from said side Wall, a blade operating element in said cavity having a manually engageable portion projecting through said opening and having a cam face engageable with said iirst named cam face; said cam faces being so disposed that upon movement of said element by pressure on said manually engageable portion, said element will be moved bodily to cause the edge of a blade carried in said case to be projected through said slot, a spring in said cavity, operable to engage a blade carried in said case and to maintain the blade in engagement with said element.

7. A holder for safety razor blades adapted to enable such blades to be used for scraping and cutting uses comprising a case of generally rectangular side outline having an internal cavity and a blade receiving slot communicating with said cavity;v said slot extending along one side edge of said case and part Way along the portions of both end edges adjacent said side edge, an opening in one side Wall of said case communicating with said cavity, a cam face on the side 0f said cavity remote from said side wall, a blade operating element in said cavity having a manually engageable portion projecting through said opening and having` one cam face engageable with said first named cam face and a second cam face engageable With a razor blade in said case, and a spring mounted in said cavity and'operable to maintain a razor blade carried by said case in engagement with said second cam face.

8. A holder for safety razor blades adapted to enable such blades to be used for scraping and cutting uses comprising a case of generally rectangular side outline having an internal cavity and a blade receiving slot communicating with said cavity; said slot extending along one side edge of said case and part way along the portions of both end edges adjacent said side edge, an opening in one side Wall of said case communicating with said cavity, a cam face on the side of said cavity remote from said side Wall, a blade operating element in said cavity having a manually engageable portion projecting through said opening and having one cam face engageable with said rst named cam face and a second cam face engageable With'a razor blade in said case, and a spring mounted in said cavity and-operable to maintain a razor blade carried by said case in engagement with said second cam face; said cam faces being operative upon manual pressure applied to said element to cause the edge of the blade to be projectedthrough said slot.

9. A holder for safety razor blades'adapted to enable such blades to be Iused for scraping Yand cutting uses comprising a case of generally rectangular side outline having an internal cavity and a blade receiving slot communicating with said cavity; said slot extending along one side edge of said case and part'way along the portions of both end edges adjacent said side edge, an opening in one side Wall of said case communicating with said cavity, a cam face on the side of said cavity remote from said side vvall,r a blade operating element in said cavity having a manually engageable portion projecting through said opening and having a cam face engageable with said first named cam face; said cam faces being so disposed that upon movement of said element by pressure on said manually engageable portion,

vsaid element will be moved bodily to cause the edge of a blade ,carried in said case to be projected through said slot, a spring in said cavity, operable to engage a blade carried in said case and to maintain the blade in engagement with said element; said element and said case having interengaging portions operable to lock the blade in projected position'.

10. A holder for safety razor blades adapted to enable such blades to be used for scraping and cutting uses comprising a case of generally rectangular side outline having an internal cavity and a blade receiving slot communicating with said cavity; said slot extending along one side edge of said case and part way along the portions of both end edges adjacent said side edge, an opening in one side wall of said case communicating with said cavity, a cam face on the side of said cavity remote from said side wall, a blade operating element in said cavity having a manually engageable portion projecting through said opening and having one camV face engageable with said first named cam face and a second cam face engageable with a razor blade in said case, and a spring mounted in said cavity and operable to maintain a razor blade carriedby said case in engagement with said second cam face; said cam faces being operative upon manual pressure applied to said element to cause the edge of the blade to be projected through said slot; said element and said case having interengaging portions operable to lock the blade `in projected position.

' CARLYLE B. STAIR.

No references cited.

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