US2561610A - Razor - Google Patents

Description

July 24, 1951 A. J. BRUNEAU @fondre/V July 24, 1951 A. J. BRUNEAU `2,561,610

RAZOR Filed May 19, 1948 2 Sheets-Sheet 2 Patented July 24, 1951 OFFICE RAZOR Albert J. Bruneau, Montreal, Quebec, Canada Application May 19, 1948, Serial No. 27,889 In Canada May 20, 1947 claims.

Introduction l This invention relates to razors andmore particularly to a razor of the safety type.

Safety razors of the variety in common use today, using double-edged razor blades, usually comprise a handle, a blade seat, and a blade cover. Either on the blade seat or on the blade cover, or sometimes on both, are guide strips or teeth which act as a guide, which the shaver places against the face in order to gauge the eX- tent to which the open edge of the razor blade comes in contact with the skin and whiskers. This amount is gauged by the angle and the pressure applied by the user. At the present time, the majority of safety razors available on the market are manufactured with approximately the same clearance between the guide member and the cutting edge of the blade, and do not provide any means for adjusting this clearance to suit the individual needs of the shaver. Many people have resorted to leaving the blade loose between the blade cover and the blade seat in order to secure a closer shave, but as will be understood this is a dangerous means of securing a closer shave.

Further, it is quite often found that when shaving with a safety razor, one edge of the blade will give a much closer shave than the other edge. It has been found by experiment that this is caused by the blade not being properly centered on the blade seat or that the cutting edge of the blade is not` parallel with the edge of the guide.

Objects It is, therefore, an object of this invention to provide an yadjustable feature to a safety razor, that will allow adjustment of the guide, thus making it possible for the shaver to yadjust the clearance between the cutting edge of the blade and the guide to suit his personal requirements.

It is a further object of this invention to provide a blade-positioning means by which the razorblade is properly centered on the blade seat with the cutting edges of the blade parallel with the guide edge of the razor.

Itis a still further object of this invention to provide a razor of the safety type which is easy to clean, inexpensive to manufacture, combining the adjustable feature and the proper 'alignment of the blade.

Preferred structure Means are also provided so that the shaver may adjust his razor to a predetermined clearance, to suit the type of shave desired.

The cover or blade-seating member is provided with improved type of blade-holding means,

c which are engineered to accommodate the varying characteristics of a double-edged blade as it is curved when clinched against the blade seat. These improved blade-holding means ensure that the blade is properly centered on the blade-holding seat, and also that the cutting edges of the blade are parallel with the guiding edges.

Other features, such as ease of cleaning, have been taken into consideration in the design of this razor and the open structure of lthe razor provides easy cleaning, thuspreventing clogging.

Detailed description Still other features will be apparent in the course of the following detailed description in which reference is made to the accompanying drawings, wherein: I

Figure 1 is an assembled side elevation of a preferred form of razor embodying the invention.

Figure 2 is an end elevation of the razor illustrated in Figure 1.

Figure 3 is an exploded end view, showing the various pieces going to make up one preferred version of the razor.

Figure 4 is a plan View of the body member.

Figure 5 is a plan view of the adjustable member.

Figure 6 is a side sectional elevation ofthe adjustable portion taken on the line 6-6 of Figure 5. l

Figure 'l is a side sectional elevation of the blade-seating member taken on the line 1l, Figure 3. Y

Figure 8 is an enlarged end sectional eleva` tion of a razor blade illustrating the deformity of the aligning means during bending.

Figure 9 is a plan view of an alternative structure for the blade-adjusting member.

LFigure l0 is a side sectional elevation taken on the line IU-I 0 of the structure illustrated in Figure 9. I

Figure 11 is a facsimile in plan view of a standard double-edged safety razor blade.

With reference to the drawings, which illustrate a preferred embodiment of the invention, the razor comprises a handle I0 having a shank I2 and a screw-threaded shank I4 of smaller diarneter extending from said first-mentioned shank I2 forming a shoulder I6. Adapted for free rotation about the shank I2 is an adjustment member c in the form of a flanged screw I8, having a beveled and knurled flange 2l] and a screw-threaded shank 22 which is centrally bored to provide a clearance passage for the shanks I2 and I4 of the handle I0.

A guard member 24, is adapted to be supported I the blade is bent by the clinching pressure. The

When the razor is assembled and ready for use as illustrated in Figures 1 and 2, the handle I0, the block 30, and the cover plate 46 with the razor blade clinched between, are held in definitely static relative positions by the threaded connection I4 of the handle with the cover plate and the meeting of the two shouldersl I6 and 34.

The guard member 24 is urged away from the block 30 by the resilient members 38 or 42, and is governed as to relative positions with the block 30 and the cutting edges of the razor blade by the screw-threaded adjustment bushing I8, which is threadably engaged with the block 30, the underside of the ilange 20 being in contact with the upper face of the guard member 24. As the bushing I8 is screwed against the resilient means and closer to the block 30, the guiding wings 28 are brought closer to the cutting edges of the blade, and vice versa when the bushing is screwed in the opposite direction the guiding wings 28 are drawn away from the cutting edges, thus providing an adjustable exposure of the cutting edges of the razor blade.

A graduated marking may be made on the flanged face to enable the shaver to gauge the clearance desired.

Advantages The advantages to be had by this invention are rst, the ability to adjust the clearance between the cutting edges of the blade and the guides, the second advantage being that the cutting edges of the blade and the guide members are held parallel to each other. These first two advantages provide for the shaver a better shave as Well as allowing the shaver to suit the shave to his whim. The third advantage is that the construction of the guide members, as illustrated, provides for easy cleaning, thus giving the shaver the added advantage of not having to take a long While to clean up.

It will be understood that Without departing from the spirit of the invention, or the scope of the claims, various modications may be made in the specific expedients described. The latter are illustrative only, and not oiered in a restricting sense, it being desired that only such limitations shall be placed thereon as may be required by the state of the prior art.

The sub-titles used throughout the specication are merely to simplify reference thereto and should otherwise be disregarded.

I claim:

1. A safety razor comprising a handle having a shank, a cover plate mounted on said handle shank, an adjustable guard assembly mounted between said handle and cover plate, said adjustable guard assembly including an adjustment member having a flanged head and a threaded shank internally bored to provide a clearance passage for the shank of said handle, a guard member having a centrally disposed opening constituting a clearance passage for the threaded shank of said adjustment member, a blade-end gaging member including a centrally disposed opening constituting a clearance passage for the shank of said handle and co-axially with said opening a counter bored tapped opening adapted to receive the threaded shank of said adjustment member, and resilient means between said blade engaging member and guard member adapted to urge one from the other, said adjustable guard assembly fitting over the shank of said handle and being retained in position by the engagement of said handle and cover plate, whereby a razor blade is adapted to be retained between said cover plate and blade engaging member in xed position relative to said handle and rotation of said adjustment member is adapted to move said guard member towards and away from said blade retaining members and blade.

2. A safety razor as claimed in claim 1, wherein the blade-engaging member is of substantially rectangular form having parallel outer walls, and said guard member includes a centrally disposed recess having parallel inside walls adapted to slidably iit over said blade-engaging member outer walls, whereby said guide member is maintained in parallel relationship with said blade-engaging member during upward or downward movement.

3. A safety razor, as set forth in claim 1, in which the resilient means, urging said bladeengaging member and said guard member apart, comprises a plurality of rubber-like cushion members mounted in countersunk holes in one member, the protruding portion of the cushion members acting against the juxtaposed face of the other member.

4. A safety razor, as set forth in claim 1, in which the resilient means urging said blade-engaging member and said guard member apart, comprises a pair of resilient spring members seated in a recess on one of the members, and adapted to act against the juxtaposed face of the other member to force said members apart.

5. A safety razor as claimed in claim 1 wherein said cover plate includes means for seating a razor blade with the cutting edges parallel to said blade-engaging member comprising a pair of spaced apart substantially semi-circular wing members extending at right angles to the inner surface of said cover member, the opposing flat faces on each side of said members sloping to- Wards each other to form substantially frustroconical wings in cross section, said blade-engaging members including a pair of corresponding recesses adapted to mate with said extended wing members whereby the blade-engaging member is adapted to clinch a razor blade over said wing members and against the inner surface of said cover member, the engagement of said wing members with said blade-engaging member recess being adapted to maintain said cover member alilid blade-engaging member in parallel relations p.

ALBERT J. BRUNEAU.

REFERENCES CITED The following references are of record in the ille of this patent:

UNITED STATES PATENTS Number Name Date 1,755,726 Conill Apr. 22, 1930 1,944,604 Holtzman Jan. 2B, 1934 2,008,589 Ohmer July 16, 1985 2,238,899 Harshberger ...mw- Apr. 22. 194:1,

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