US2850801A

US2850801A - Safety razor having plurality of shaving adjustments

Info

Publication number: US2850801A
Application number: US531714A
Authority: US
Inventors: John J King
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-08-31
Filing date: 1955-08-31
Publication date: 1958-09-09
Anticipated expiration: 1975-09-09

Description

P 1958 J. J. KING I 2,850,801

SAFETY RAZOR HAVING PLURALITY 0F SHAVING ADJUSTMENTS Filed Aug. 51,1955

IN VEN TOR.

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United States Patent Q SAFETY RAZOR HAVING PLURALITY F SHAVING ADJUSTMENTS John J. King, Chicago, Ill.

Application August 31, 1955, Serial No. 531,714

1 Claim. (CI. 30-46) The present invention relates to safety razors; and, more particularly, pertains to a safety razor and blade combination which provides for four positions of adjustment of the razor blade cuttingedges relative to the razor guard edges and, thus, allows for four different dispositions of the cutting edge of a razor blade relative to the skin of the user.

The razor embodiment illustrated in the accompanying drawings is of the type wherein the blade is reciprocated longitudinally during the shaving operation. However, it is to be understood that the novel features of the razor and blade herein presented are equally well adapted for incorporationin the ordinary safety razor construction having no moving parts in which the blade remains stationary in the normal course of shaving.

It is well known by those skilled in the razor art that the ordinary double-edged blade is usually centrally disposed on the razor support plate, whereby the opposed cutting edges of the blade project over opposed uniform guard edges of the support plate precisely the same distance. It is apparent that in such a construction only one position of adjustment of the blade cutting edges relative to the support plate guard edges is possible.

It is an object, therefore, of the invention to provide a reversible, double-edged blade, the cutting edges of which project over opposed guard edges unequal distances, in combination with a razor construction in which the distal free end limits of the guard edges are disposed at unequal distances from the plane of the blade.

Utilizing such a combination, upon reversing the blade in the razor, four positions of adjustment of the blade edges relative to the guard edges are possible and, thus, four cutting edges are available for shaving use, as will hereinafter be explained in greater detail.

It is a further object of this invention to enable four cutting edges to be obtainable with the provided razor by the mere punching of a plurality of locating apertures in the ordinary double-edged blade sold in retail stores.

It is a still further object of this invention to provide a razor construction" employing a novel retaining plate, thereby assuring stability of razor assembly.

It is a still further object of this invention to provide a novel shaving concept which is readily adaptable to either safety razors employing reciprocating blades or to the ordinary type razor in which the blade is fixedly positioned.

The above and other objects will become more apparent from the following description, accompanying drawings and appended claims. I

In carrying out this invention in one form, a razor is provided having a support plate, the opposed longi-- tudinal edges of which have guard edges formed integral therewith. The free or distal end limits of the guard edges, however, differ in that they are disposed at unequal distances from the plane of the support plate. Protruding studs or other equivalent locating means are po sitioned on the top surface of the support plate for purposes of engaging a double-edged blade which is to be supported thereon. The double-edged blade is appropriately apertured for purposes of engaging the lattermentioned studs. These apertures, however, are so positioned in the blade that, in the normal assembled position, the cutting edges of the blade project unequal distances over the opposed longitudinal edges of the support plate and assume different relative dispositions with the guard edges. By reversing the double-edged blade, new relative dispositions between the opposed cutting edges of the blade and the support plate guard edges are effected. It is thus apparent that four positions of adjustment of the cutting edges of a double-edged blade relative to the guard edges of a support plate are possible and, thus, four different dispositions of the cutting edges of a double-edged blade relative to the skin of a user, affording four different degrees of shaving closeness, are available. I I

For a more complete understanding of this invention, reference should now be had to the drawings, wherein Figure l is a top plan view of the razor employed in one embodiment of this invention.

Fig. 2 is a top plan view of the support plate utilized in the razor provided;

Fig. 3 is a front elevational view of the provided razor in which the top portion thereof is shown in section taken on line 3-3 of Fig. 1;

Fig. 4 is a fragmentary side elevational view of the embodiment illustrated in Fig. 3 in which the top portion thereof is shown in section taken on line 4-4 of Fig. 3;

Fig. 5 is a fragmentary left side elevational view of the top portion of the embodiment illustrated in Fig. 3;

Fig. 6 is a fragmentary right side elevational view of the top portion of the embodiment illustrated in Fig. 3; and

Fig. 7 is a top plan view of a double-edged blade to be utilized with the illustrated razor showing in dotted lines the new disposition of theblade cutting edges when reversed on the support plate.

Referring now to the drawings and more particularly to Figs. 1 and 3, a razor 10 of the type in which the blade is reciprocated longitudinally during the cutting operation is provided. Such a razor is particularly desirable for persons having beards of unusual toughness since the reciprocal cutting action of the blade insures positive cutting of the hairs of the beard. Consequently, the tendency of the blade to slide over tough beards is obviated. The razor comprises a handle 12 to which a support plate 14 is affixed at the upper end limit thereof. The latter plate has disposed on the top surface thereof two projecting stud members 16 for purposes of engaging locating apertures 13 of a double-edged razor blade 22, such as is illustrated in Fig. 7, which is to be positioned thereon. Formed integral with the, opposed edges of the support plate 14 are two serrated guard edges 18 which, as will be more clearly shown in Figs. 4 through 6, have a substantially U-shaped, cross-sectional configuration. By utilizing such a configuration, the cream or softening agent in contact with the beard is disturbed to a minimum degree in the course of shaving, while the whiskers and cream removed by the blade are supported by the guard edges 18 and prevented from carelessly.

blade 22 and the support plate, because of the point con tacts effected between blade 22 and projections 20.

The blade 22 is provided with an aperture '24 which is centrally disposed relative to the length of the blade but which is offset slightly toward one longitudinal edge as illustrated (see Fig. 7). Blade 22 is adapted to be engaged by a reciprocating, projecting pin 26 which. is a part' of the razor It]; as is clearly shown in Figs. 3 and 4. As is more clearly shown in Fig. 3, the pin 26 is aflixed to a supporting saddle or frame member 23 which is supported by a transversely disposed pin member 30; The latter pin is, in turn, journalled at opposed end limits in bracket-bearing portions 32 which are formed integral with the top surface of a retaining plate 36. It will be noted. from the plan view of the latter retaining plate in Fig. 1 that the bracket bearings 32 are at opposed longitudinal end limits of an aperture 34 formed in the top surface of the retaining plate 36. The saddle 28 depends through the aperture 34 in the retaining plate, as shown in Fig. 3, and the projecting pin 26 fixedly positioned on the saddle 28 depends still further so as to traverse the aperture 24 formed in the blade 22.

Referring to Fig. 2, it will be noted that the support plate 14 has a central aperture 38 which enables the projecting pin 26 of the saddle to depend below the plane of the support plate and is of such a diameter so as to allow lateral reciprocal movement of pin 26, as will hereinafter be explained.

The motive means for reciprocally moving the saddle 28, attached pin 26 and underlying blade 22 comprises a roller 40 which is suitably keyed to the rotatable transverse pin 30. The roller 40 is knurled about its periphery so as to be readily and rotatably moved upon contact with the surface of the face in the course of a shaving stroke. The opposed end portions of the roller 40 comprise cam portions 42, more clearly shown in Figs. 1 and 3. Upon rotating the roller 40 by contact with the face in the course of a shaving stroke, the cam portions 42 also rotate, simultaneously reciprocally moving those portions of the frame 28 which depend from the pin 30 against which the cam portions abut. The saddle or frame 28 is, therefore, forced to reciprocally move from side to side. As the roller member 40 rotates, the projecting pin 26 aflixed to the saddle 28 simultaneously reciprocates the blade 22 positioned on the support plate. The slotlike nature of the apertures 13 formed in the double-edged blade 22 enables the blade to reciprocally move and, yet, be prevented from moving laterally on the support plate 14 as the blade 22 slidably engages the projecting blade locating studs 16.

It will be noted from Figs. 3 and 4 that the surface of the blade 22 remains horizontal when positioned on the support plate 14. Any bending or gripping of the blade by components of the razor illustrated would render impossible the reciprocal movement of the blade.

The irregular disposition of the locating apertures 13 on the blade 22 comprises one of the main features of the invention provided. By having the distance between each set of blade apertures 13 and the adjacent blade cutting edge vary, one cutting edge of the blade must, of necessity, project over a longitudinal edge of the support plate and the underlying guard a greater distance than the opposed cutting edge of the blade projects over the opposed edge of the support plate when the blade apertures 13 engage locating studs 16. The difference in blade edge disposition upon reversing blade 22 on support plate 14 is shown in Fig. 7 wherein the dotted and solid line blade figures depict the two blade positions on the support plate and also indicates the changed position of the blade due to its reciprocal movement.

Another feature of the invention provided comprises the unequal distances which the distal or free end limits 46 and 47 of the guard edges 18 are disposed from the planes of the support plate and blade. It is obvious that the guard distal end limit 47 being disposed closer to the plane of the blade will effect a closer shave with blade edge 44a than the opposed guard distal end limit 46 will effect with blade edge 46b, which is disposed at a greater distance from the plane of the blade. The closest shave is obtainable when the long edge 44a of the blade is disposed adjacent the distal edge end limit 47 of the guard 18 which end limit is disposed closer to the blade. A razor-blade disposition which provides a cutting edge which efiects a shave not quite as close as that above described comprises that of the blade edge 44b over the distal end limit 46 of the guard edge 18. Two alternate blade edge-razor guard dispositions providing varying degrees of shaving closeness intermediate the two above shaving edges are obtainable upon reversing the blade 22 on the support plate 14 of the razor 10 so that edge 44a will now be disposed adjacent distal end limit 46 of the guard 18 and blade edge 44b will be disposed adjacent the distal end limit 47 of the guard edge 18. it is thus apparent from the above that four separate shaving edges are available utilizing the provided razor-blade combination.

The user of the blade and razor provided may thus select the blade edge and guard disposition which aifords him the greatest shaving efliciency and comfort. It may be desirable for the user of the provided razor and blade combination to use one edge disposition for a rough shave in which the bulk of the whiskers is removed and the opposite blade edge disposition for a second operation in which a finishing close shave is effected.

Referring now to details of the razor construction provided, it will be seen in Fig. 6 that the blade retaining plate 36 has two depending bracket portions 48 for purposes of pivotally engaging a pin 50 which is journalled in opposed projecting lug portions 52 formed integral with the support plate 14, as more clearly shown in Fig. 2. Because of the double bearing, as illustrated in Fig. 6, any tendency of the retaining plate 36 to twist and become distorted in the course of retaining plate movement is minimized. It will be further noted from Fig. 5 that two depressions 53 are formed in a depending lip formed integral with one end limit of the retaining plate 36. The two depressions 53 function as locking snaps which secure the retaining plate 36 in a fixed position over the blade support plate 14. Two projecting lugs 56, shown in Fig. 2, are formed integral with the support plate 14 and provide side stops which prevent lateral movement of the depending lip 54 of the retaining plate when the retaining plate is in locked position. It is thus seen that the razor construction 10 provided is sturdy and assures the absence of rattling and movement of the retaining plate 36 in the normal course of a shaving operation.

The blades to be utilized in the provided razor construction may be the usual type double-edged blades sold in retail stores but which have been punched, as above described, so as to enable the cutting edges to project unequal distances on the razor support plate.

it is thus seen that a razor and blade combination has been provided which allows four positions of blade to razor adjustment and, thus four cutting edges affording four degrees of shaving closeness, which the user thereof may employ in the normal course of shaving. The four distinct blade-razor disposition allow great flexibility in the course of shaving and enables the user of the combination illustrated to employ a rough shaving and a finish shaving operation which he deems most suitable. The razor construction illustrated is free from rattling and of sturdy construction. Ordinary blades may be used with the illustrated razor following a simple punching operation.

It is intended that many modifications which may be based on the illustrated embodiment remain within the inventive concept here disclosed. This invention is to be limited, therefore, only by the scope of the appended claim.

I claim:

in a safety razor, a handle, a razor blade support attached to said handle, at least two blade positioning means disposed on said blade support for engaging and positioning an apertured double-edged razor blade on said blade support, blade retaining means hingedly secured to said blade support, roller means disposed atop said blade retaining means having cam surfaces defining opposed end limits, a mounting for said roller means, saddle means abutting against opposed cam end limits of said roller means, reciprocally movable pin means secured to a lower portion of said saddle means reciprocally movable over the longitudinal axis of said blade support and depending from said blade retaining means and into the plane of said blade support, rotational movement of said roller means imparting reciprocal movement to said saddle means by means of said roller cam end limits and depending saddle means, and two opposed guard portions formed integrally with the opposed longitudinal edges of said blade support, so that the intervals between the plane of said support and said guard portions distal end limits are unequal.

References Cited in the file of this patent UNITED STATES PATENTS Clauberg Mar. 27, Reed Aug. 4, Reed Aug. 18, La Chance et a1 Feb. 2, King Aug. 7, Valabregne Oct. 16, Love Apr. 12, King Dec. 13, Parkin Aug. 10, Parkin Aug. 10, Bunnell Aug. 17, Gump Feb. 17, Williams et a1 May 12,