US 2030658 A
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Description (OCR text may contain errors)
M. mm3@ ESCHODLBAUER www SAFETY RAZOR Filed Feb. 5, 1954 INVENTOR l /Lm ATTORNEY Afm/1 M Patented Feb. 11, 1936 lUN-I TED STATES PATENT OFFIQE SAFETY RAZOR Erwin Schodlbauer, New York, N. Y.
Application February 3, 1934, Serial No. 709,549
,The present invention relates to safety razors andisanimprovement upon my prior patent, No. l,848,666, although -some of the features of the presentimprovement maybe embodied in other types Y of constructions.
-Safetyrazors usuallyare cleaned after each shave, 4whichordinarilyrequires the removal of thezblade. `In many instances, the blade is removedandreplacedby -a new blade or is sharp- 'enedgbeforeshaving .By reason of the frequent use oflthe` razors andthe removal and replacementbf the-blade ,before or after each use, an improvementinthe attachment and removal of the blade orlintheassembly and disassembly of the parts .is important as a convenience to the user. .A .savingof time or of annoyance may mean the dierence between satisfaction and dissatisfaction. Since -millions of people from all walks of life usesafety razors daily, it is essentialthat therazors be simple in construction and substantially fool-proof so that each personcan readily remove and replace the Vblades `without difficulty, and so that the blades; are retained in accurate position, regardless of the care .used in inserting them. In my prior patent, provision was made `for quick and convenient removal of the blade, but thepresent invention is a further improvement lin this respect.
Thepresentinventionaims to achieve the above results without increasing materially the cost of `the -construction and without complicating the construction or the manufacture of the parts.
:An objectof thepresent invention is to provide a safety .razor with parts which can be readily Ymanufactured at a low cost.
,Another object of the invention is to provide a safety razor .from which the blades can be r.neadilyremoved .and replaced with a minimum `,of .time and effort.
.'Another .object of the invention is to provide an improvedsafety razor of the class described, .in which the xblade Aisheld accurately in .place ,without requiringany particular care on the part .o'f :the .userfin inserting the blade.
Another-.object ,of `the invention lis to `facilitate A.removal of the b'lade.
be in'dicated in the accompanying claims, and
various advantages not referred to herein will .occur to onefskilled inthe art upon employment .dflthe invention .in i practice.
A preferred embodiment of the invention has been chosen for purposes of illustration and description and is shown in the accompanying drawing, forming a part of the specification, wherein Fig. l-is a front elevational view of the razor with the blade clamping member raised to permit removal ofthe blade;
Fig. 2 is a top plan View of the razor with the clamping member swung back and with the blade removed;
Fig. 3 is adetailed perspective view of one end of the .clamping member showing a modification thereof;
Fig. 4 is a fragmentary top plan view of a blade having one form of slots therein;
Fig. 5 is a fragmentary top plan view of a \b1ade having another form of slots therein; and
Fig. 6 is a fragmentary top plan view of a blade having a third form of slots therein.
Referring more particularly to the drawing, there is shown a safety razor having a handle l and a blade holder 2 secured together in any suitable manner, for example, as shown in my previous Patent No. 1,848,666. The holder 2 may also be provided with a pair of projections l adapted to receive and retain the ends of a shaft 5, on which suitable rings 6 are loosely mounted to serve as a guard for the cutting edge of the blade, as described more particularly in my said prior patent.
The holding member 2 preferably has a flat surface l adapted to receive and support a razor blade `8. The ends of the blade may abut against the upwardly extending projections l to prevent longitudinal movement thereof. Projections li extending from the projections lll serve to engage the end portions of the cutting edges of the blade to cooperate with the projections l2 engaging the opposite edge of the blade to hold the blade against forward or backward movement vwith respect to the guard members.
A lclamping bar i4 is adapted to clamp the blade 8 on the holding member 2. Preferably, this bar is hinged to one end of the holding memberby means of a pin l extending through suitable apertures in the pair of spaced extensions I6 on the holding member 2. The hinged end of the clamping member ll! isbent or rolled to extend `about the pin l5 to form a hinged connection. The other end of the clamping-member 'i is preferably rolled in a similar manner to form a resilient projection ll adapted to snap over and be secured to the other end of the holding member. The end of the holding member adapted to receive the free end of the clamping member is when the clamping member is locked on the holding member 2, the blade is held more securely in position.
The rolled end Il' of the clampingY member I4 provides a very effective projection having suflicient resilience to snap over-the end of the holding member and, at the same time, having sufcient strength to hold it securely in position. The rolled portion also oifers a convenient means Vforengagement with the thumb or finger to raise the clamping member and remove the blade.
By hinging the clamping barY I4 to the holding member 2, the parts of the razor need not be disassembled in order to remove or replace the blade... Another advantage is that the several parts are connected while the blade isV removed,
A and cannot accidentally fall apa-rt or become lost.
It may be desirable, in some cases, to provide a more convenient means than'the rolled end I'I for engaging and raising the clamping member I4. A slightly different construction is shown in Fig. 3 for this purpose, wherein the end ,of lthe clamping member is slotted, as shown at 2i), to form a tab or end part 22 and the two side portions are"roiled, as shown, to form projections 2l adapted to engage the end of the holding member in the same way as projection Il. In the construction shown in Fig. 3, the outwardly extending end part 22 serves as a more convenient means for engaging and raising the clampingmember. If desired, the tip of the end part or tab 22 may be bent slightly upwardly to'facilitate engageing recesses or slots 23 formed inthe clamping member I-/i and'within recesses or slots 25 formed in the blade. The recesses may be substantially rectangular, as shown in Fig. 4, but preferably the entrance portions are flared outwardly to facilitate entry of the projections 24 therein.
' Preferably, the width of the recesses is such that the sides thereof wedge against the projections Eid to prevent anylon'gitudinal movement of the blades. ,Other forms of recesses are shown at 25a and Reb, in Figs. 5 and 6, respectively. In
Ythese figures, the entrance portion is flared outwardly slightly to form a converging neck portion 2. The bottom of the recesses below the neck is preferably or" a slightly greater width than 'the neck portion. The advantage of the neck portion 2i is that the unsupported metal is more Due to limitaresilient or flexible than the wall portions of the` recesses 25 in Fig. 4, and allows for greater inaccuracies in the manufacture Yof the blades, without impairing the fit between the recesses and the projections 2d. The bottoms of the recesses may be of any desired shape, for example, Y
star-shaped, as shown in Fig. 6, to improve the Y appearance or to serve as a trade-mark.
In removing and replacing the blade, the clamping member I4 is engagedV by its rolled endV II or bythe projection 22, as shown in Fig.'3, and the end is raised upwardly about its opposite-hinged n end so that the blade is completely exposed and may be removed without diiculty. If desired, the central portion of the blade holding member 2, intermediate the projections 24, may be provided with a recess 2S so that the blade extends,
has been placed in the holder, the'clamping mem'- er I4 is swung about its hinge and the free end clamped over the end of theholder to hold the blade in the` holder. The Vrazor is then ready to be used. from the holder to Vfacilitate manufacture of the parts butmay be integral with it, if desired. Y
It .will be seen that the present invention provides a simple construction made from parts which can be readily manufactured. The blade is securely held in position against movement in any direction and can be removed and replaced in minimum time and with minimum ,eiort Thepparts of the holder are completely exposed when the clamping member is raised so that they may be readily reached for cleaning purposes. 'Ihe guard rings cooperate with the cutting edge to prevent injuries to the face and, in addition, to afford a massaging action which gives a cleaner, smoother and more comfortable shave.
As various changes maybe made in the form, construction and arrangement of parts without departing from the spirit and scope of the invention and without sacrificing its advantages, it is to be understood that all matter herein is to be interpreted as illustrative and not in a limiting sense. Y
Having thus described my invention, I claim:
1. In a safety razor, the combination of a hold- `ing member, a clamping bar hinged at one end of said holding member for clamping a razor blade in operative position, the opposite end of said bar having a projection adapted to snap over the other end of the holding member to hold the barV in position, said other end ofthe holding member having a pair of raised projections extending along the sides of said clamping bar, said projections having upwardlyand outwardly taperingY surfaces at the sides thereof adapted to guide the sides of the free end of said clamping bar into its closed position. v l
2. In a safety razor, the combination of a supporting member made of relatively thin metal, one edge of said supporting member being bent upwardly to form an abutment for one edge of the razor blade, projections extendinginwardly from. said upwardly bent portion, a razor blade The handle is preferablyV detachable having a plurality of recesses in one edge thereof adapted to register with said projections to hold the razor blade accurately in position, and a clamping member adapted to further secure said razor blade in position.
3. In a safety razor, the combination of a supporting member having an upwardly extending abutment at one side thereof, a razor blade seatedl on said member and adapted to fit against said abutment, a plurality of loosely mounted rings mounted on said supporting member adjacent to the cutting edge of the blade, projections extending inwardly from said abutment on said supporting member, said blade having recesses at the edge opposite to the cutting edge adapted to t and engage said projection to accurately position the blade on the supporting member, and a bar hinged to one end of said supporting member adapted to hold said blade in position.
4. In a safety razor, the combination of a holding member having a substantially at surface adapted to support and hold a razor blade, a pair of upwardly and outwardly extending portions on one end of said member having apertures therein, a pin extending through said apertures, a bar having one end rolled about said pin to hinge said end to the holding member, and tting between said portions, the other end of said bar being `bent to engage and snap over the other end of said holding member, and a pair of upwardly and outwardly extending portions at said other end of said holding member having tapered surfaces on the inner sides thereof for guiding the free end (gf the bar into engagement with the holding mem- 5. In a safety razor, the combination of a supporting member adapted to receive a single edge razor blade, said supporting member having portions at one edge bent upwardly to form an abutment for the edge of the blade opposite to the razor edge and projections extending inwardly from said upwardly bent portions, a single edge razor blade having a plurality of slots on the edge opposite to the razor edge, said projections being adapted to fit into said slots to hold said blade accurately in position, and an elongated clamping bar hinged at one end thereof to said holding member and having a projection at the opposite end thereof snapped into engagement with said holding member to hold the blade in position.
6. In a safety razor, the combination of a blade supporting member, one edge of said supporting member having an upwardly extending portion to form an abutment for one edge of a razor blade, projections extending inwardly from said upwardly extending portion, and a blade clamping bar hinged at one end thereof to said blade supporting member and having a projection at the opposite end adapted to be snapped over a portion of said supporting member, said bar having a plurality of recesses at one side between the respective ends thereof adapted to register with said projections to hold said bar accurately in position.
7. In a safety razor, the combination of a holding member, a projection formed at one edge of said holding member, a razor blade having a recess in one edge thereof adapted to register with said projection, a converging neck portion at each side of said recess formed substantially at the edge of the blade providing an entrance portion of reduced width for the recess, said converging neck portions being adapted to wedge against and engage the projection at opposite sides thereof to hold the blade accurately in position, and a clamping member extending across the top of the blade for holding said blade on said holding member.
8. In a safety razor, the combination of a blade holding member having a pair o-f upwardly extending portions at one side thereof to form abutments for one edge of the blade, a projection extending inwardly from each of said upwardly extending portions, said blade holding member having a recess therein between said projections to facilitate removal of the blade, a razor blade having recesses in one edge thereof adapted to register with said projections to hold the razor blade in accurate position with respect to said blade holding member, and means for clamping said blade on said holding member.
9. In a safety razor, the combination of a blade holding member having a pair of upwardly bent edge portions at one side thereof to form abutm-ents for one edge of the blade, a projection extending inwardly from each of said upwardly bent portions, said holding member having a recess between said projections to facilitate removal of the blade, a razor blade having recesses in one edge thereof adapted to register with said projections to hold the razor blade in accurate position with respect to said blade holding member, and means for clamping said blade on said blade holding member, said clamping means having recesses therein adapted to register with said projections.
10. In a safety razor, the combination of a blade holding member having a substantially rectangular blade receiving cavity, upwardly extending rectangular portions at the four corners of said blade receiving cavity adapted to engage the corners of a blade and hold the blade in position, projections at one side of said blade receiving cavity extending transversely inwardly with respect to said cavity, a razor blade having recesses adapted to register with said projections to accurately position said blade, and means for clamping said blade on said holding member.