US2027213A

US2027213A - Safety razor

Info

Publication number: US2027213A
Application number: US673127A
Authority: US
Inventors: Vonschott William
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-05-27
Filing date: 1933-05-27
Publication date: 1936-01-07
Anticipated expiration: 1953-01-07
Also published as: DE630053C

Description

Jan. 7, 1936. WVONSCHOTT 2,027,213

SAFETY RAZOR Original Filed May 27, 1933 INVENTOR Mlllgm l ansclmfl ATTORNEY Patented Jan. 7, 1936 UNITED STATES SAFETY RAZOR William Vonschott, Flushing, N. Y.

' Application May 27, 1933, Serial No. 673,127

Renewed April 16, 1935 10 Claims.

The invention is a safety razor in which the intermediate part of the guard is open providing continuous clearance on the inner side of the blade thereby eliminating the possibility of hairs holding against the guard teeth and preventing the blade cutting at these points.

The invention also relates to a safety razor in which the cutting edges of the blade are held continuously thruout the length thereof, and in which rollers are held in upwardly extending edges of the guard and are mounted to permit the largest possible clearance between the centers thereof and the cutting edge of the blade.

Safety razors of this type have been made heretofore but these have not contained the combination of a shield for continuously holding the edges of the blade with an open guard which provides a continuous opening behind the cutting edge of the blade, and this combination makes it possible to obtain the greatest possible efiiciency in safety razors.

The object of the invention is, therefore, to provide an improvement in safety razors of the type having rollers in the edges of the guard in which the rollers are mounted to provide 'maximum clearance between the 'axle thereof and the razor blade, continuous clearance along, the blade, and means continuously holding the cutting edges of the blade.

Another object isto provide a safety razor in which soap lather and hairs will not collect behind the cutting edge of the blade.

' Another object is to provide a holding member in a safety razor which holds the blade continuously.

Another object is to provide means for mounting rollers in a safety razor guard so that the pin upon which they are mounted is held between 4 each roller.

Another object is to provide means for holding the central portion of a razor blade in safety razors in which the blade is held at both ends, at the center, and continuously along the cutting 45 edges.

A further object is to provide a safety razor having a resilient shield between the blade and the guard. A still further object is to provide a roller guard for'safety razors in which lather which collects edges thereof, and a resilient shield in combination therewith which is of a simple and economical construction.

With these ends in view the invention embodies a safety razor having a back, a handle, an open 5 guard with rollers in the edges thereof, and a spring shield between the guard and blade.

Other features and advantages of the invention will appear from the following description taken in connection with the drawing, wherein: m

Figure 1 is a view showing an end elevation of the razor assembled.

Figure 2 is a detail showing a plan view of a portion of the guard.

Figure 3 is a view showing the back, shield, 15 and blade with the blade in the free position.

Figure 4 is a plan View showing the base of the razor with a blade thereon.

Figure 5 is a longitudinal section thru the razor showing the parts in the free position.

Figure 6 is a plan view showing the guard with part of the rollers thereof omitted.

Figure '7 is a detail showing a portion of a guard of an alternate design in which the teeth are extruded from the sides of the guard.

Figure 8 is a similar view showing the teeth formed in an alternate manner.

Figure 9 is a view showing a portion of a guard of an alternate design as it is stampedand before it is bent into shape.

Figure 10 is a cross section thru a portion of the guard shown in Figure 9 showing the guard in the finished position.

Figure 11 is a view similar to that shown in Figure 9 showing a guard of an alternate design. Figure 12 is a cross section showing a portion of the guard shown in Figurell in the finished position.

Figure -13 is a plan view showing the shield as it is formed before being bent into shape.

Figure 14 is a cross section thru the shield showing a concave shield.

Figure 15 is a similar section showing a straight shield.

Figure 16 is a similar section showing a convex shield.

Figure 17 is a detail showing a longitudinal section thru a safety razor of an alternate design with the parts partly assembled.

Figure 18 is a detail showing an alternate arrangement in which the shield is attached to the guard.

In the drawing the razor is shown as it may be made wherein numeral I indicates the handle, 55

numeral 2 the back, numeral 3 the guard, numeral 4 the blade, and numeral 5 a spring shield.

The handle I may be made as shown or may be of any type or design and may be held to the back in any manner. In the design shown the back is provided with a threaded stem 6 upon which the handle is threaded and it will be noted that as the handle is screwed downward upon the stem, it will clamp the parts in the cutting position.

The back 2 may also be of any type or design and may be secured to the handle in any manner. In the design shown the back is made of a crescent shape and the stem 6 extends from a boss 'I in the central portion thereof. The back may also be provided with pins 8 and 9, the lower ends l0 and H of which may be enlarged, whereas the upper ends are comparatively small as it will be noted that the razor blades 4 are located by the lower ends of these pins and the openings in the blades are comparatively large whereas it isdesired to provide comparatively small portions at the upper ends of the pins which locate and hold the guard so that the bar forming the central portion of the guard may be comparatively narrow. The back may be otherwise similar to that of other safety razors of this type.

The guard 3 may be made, as shown in Figure 6, with a central bar I2, side bars l3 and I4 and transverse bars and I6 at the ends which connect the bars l3 and M to the bar l2. The bar I2 is provided with a central opening I I that may be placed over the threaded stem 6 extending upward'from' the back and at each side of this opening is a smaller opening [8 which is placed over one of the pins 8 and 9 to locate and hold the guard in relation to the back. At the ends of the guard'are downwardly extending projections l9 and which engage the upper surface of the blade 4, asshown in Figure 1, and between these projections is a recess 2| in which extensions 22 at the ends of the shield 5 may be snapped to locate and hold the shield in relationto the guard. The extensions 22 may be provided with enlarged portions 23 at their upper ends to hold the shield to the guard, however, it will be un derstood that any other means may be used for removably holding the shield in position upon the guard, and it will also be understood that it may be permanently held to the guard by screws 24, as shown in Figure 18, or by any other means.

The outer edges of the guard may be formed similar to the edges of guards now in use or may be provided with comb edges or teeth of any design which may be formed in any manner therein. 7 These teeth may be formed, as shown in Figures 6, 7, and 8 in which they are stamped and formed with the guard or, as shown in Figures 9 and 11, in which they are formed in the edge of the guard. These teeth may be used as spacers between the rollers, asshown in Figures 6 and 9, or the rollers may be omitted and the teeth made sufiiciently long, as shown in Figures 7, 8, and 11, so that they will contact the skin similar to the teeth of guards now in use.

In the design shown in Figures 1 and 6 the side bars l3 and I4 form continuous edges which ex tend downward to the dotted lines 25 which are slightly above the edges of rollers 26 and the teeth 21 extend downward to the points indicated by the dotted lines 23 where they engage the upper surfaces of pins 29 upon which the rollers 26 are ro-tatably mounted. The lower edges of the teeth may be straight or may be provided with recesses 38, as shown in Figure 1, in which the shafts may be held. The teeth 21, therefore, form spaces for the rollers 26 and also form supports for the shafts thru the intermediate portion of the guard as the pressure against the lower surfaces of the rollers will cause an upward thrust which will force the shafts against the lower edges of the teeth. It will be understood, however, that these teeth may be of any other shape or design and may be formed to support the shaft in any other manner. The ends of the shafts 29 are held in openings 3| in the transverse bars 15 and I6 and these bars may be enlarged, as indicated by the numeral 32, if desired to reinforce the bars at the points at which the ends of the shafts are held. In the design shown in Figure 9 in which the guard, as indicated by the numeral 33, is stamped from a flat piece of material, ears 34 may be formed at the ends of the guard and provided with openings 35 in which the shafts may be held. When the guard is formed, these ears may be bent upward, as shown in Figure 10, and teeth 36 on the inner edges of the side members 3'! will form spacers to locate and hold the rollers, which in this design, are indicated by the numeral 38.

These teeth will not engage the pin on which 0 the rollers are mounted but they may engage at the center or at any point, as in Figure 1. In the design shown in Figure 11, in which the rollers. may be omitted, teeth 39 are provided which are comparatively long so that when the guard is formed, they may extend downward to the point 40, or to any point desired. In this design the ends of the guard may be curved outward, as shown so that the corners will stop short of the ends of the blade.

are extruded from a bar 42 at the ends of the transverse bars l3. and I4. These teeth may be of any shape or design and may be arranged in any manner.

In the design shown in Figure8 the teeth are formed in the edges 43 of the guard which are bent upward, outward, and downward with teeth 44 formed in the downwardly extending portion. These teeth may also be of any type or design.

The guard may be provided with or without rollers, and when rollers are used and mounted as shown in Figure 1, the maximum amount of clearance is provided between the lower edges of the teeth and the cutting edge of the razor blade.

diately moved away from the blade by the rollers. The type of guard shown in all figures provides a continuous open space behind the edge of the blade as the side members are connected to the central portion of the guard by end members thereby providing a continuous open space along the cutting edge of the blade. It will be understood that any other means may be used for locating and holding the guard and extensions or projections of any type or design may be used for holding the blade by the guard.

In the design shown in Figures 9 and 10 the central member 45 of the guard is formed of a flat piece of material with the edges 46 bent downward, as shown in Figure 10, when the guard is formed. In. this design the end of the guard is provided with extensions 47 similar to the extensions l9 and 20, shown in Figure 1, and these are bent downward, as shown in Figure 10. In the design shown in Figures 11 and 12 the central These teeth may also be formed, as shown in Figure 7, in which teeth 4| member, which is indicated by the numeral 48,

shown in Figure 12, so that they will engage the upper surface of the razor blade to hold the blade 'downward continuously 'alongthe center and the members l9 and 20 may then' be omitted. It will be understood that extensionsofany other type or description may be provided upon the guard which may extend downward to engage and hold the blade. The guards shown inFigures 9 and 11 are also provided with notches 2! into which extensions 22 at the ends of the shield may be snappedas shown in the design shown in Figure 1. i

j ,It will be understood that other means may be usedto hold the blade in relation to the guard instead of the projections l9 and 20 shown in Figure 1, or 49, shown in Figure 12', and these may be made continuous, as shown in Figure 1'7, in which openings are provided therein to clear the stem and locating pins, or formed in any manher, or located to hold the blade at any point or points. It will also be understood that any other means may be used for locating and holding the blade in relation to the guard and also for 10- cating and holding the shield in relation to the guard or blade.

The shield is preferably made of thin spring material and may be stamped, as shown inFigure 13, or formed in any manner or by any means. In Figure 13 the shield I3 is shown in the flat position, however, it will be understood that when it is formed, the ends 22 will be bent vertically upward and the body portion may be fiat, as shown in Figure 15, or curved, as shown in Figures 14 and 16 so that it may be concave or con- -vex or of any shape. It will alsobe understood that this shield may be of any type or design and may be arranged in any manner. It may also be provided with other means for locating and holding it to the razor or by which the edges of the razor blade may be held. It is preferred to form the shield with a center opening 50 which may be placed over the center stem 6 of the back, and smaller openings 5| and 52which may be placed over the pins 8 and 9. These openings may, however, be of any other shape or design and may be arranged in any manner. This shield is preferably snapped upon the guard, as shown in Figure 1, so that the edges thereof will continuously engage the edges of the razor blade and thereby positively hold the cutting edges of the blade continuously thruout the lengths thereof. The edges of the shield may be bevelled, as shown inFigures l4, l5, and 16, so that as little obstruction as possible is provided behind the cutting edges of the razor blade. The edges of the shield, however, may be of any other shape and formed in any manner.

When the shields shown in Figures 15 and 16 are used the flanges 49, shown in Figure 12, will press the shield down upon the upper surface of the razor blade, thereby holding it rigid throughout.

Small projections 53 may be used on the lower edges of the ends of the guard 3, as shown in Figure 1, to maintain the blade and guard in the proper position, particularly when the handle is slightly unscrewed. These projections may or may not be used as may be desired.

In case the designs shown in Figures 15 and 16 are used the openings 5! and 52 of the shield should be as large as the opening 50 as the shield will pass over the enlarged portions of the pins 8 and 9.

a handle, a back, a blade, and a guard in which *5 The projections '19 and '20 -at the ends of the guard may be located at a greater distance from the center or at any point or points as may be desired. i i

It will be'understood that other changes may 5 be made in the construction without departing from the spirit of the invention. One of which changes may be in the use of a razor of any other type or descriptiom'another may be in the use of other means for mounting the rollers in the outer edges of the guard, another may be in the use of other meansforlccating andholding the guard or shield, and still another may be in the use of other means for continuously holding the edges of the'razor blade against the back.

The construction will be readily understood from' the foregoing description. In use the razor 7 may be provided as shown and described and it will be noted that when assembling the razor, the blade is placed upon the back, the shield upon 20 the blade, the guard upon the shield, and all the parts are clamped and held by the handle as it is screwed downward upon the stem. It will be noted, however, that the shield may first be snapped upon the guard or secured thereto by any means, or made part thereof so that the shield and guard may be supplied and used as a unit. It will also be noted that the shield may be made slightly curved or may be made straight, concave, convex, or in any shape or design. The an outer edge of the shield may also be square, or may be bevelled or sharpened so that the upper surface thereof will be flush with the edge of the razor blade in order to eliminate any obstructing edge whatever, to hold hairs or lather behind the as cutting edge of the razor.

It will be noted that with these parts formed in this manner and assembled as shown, the complete intermediate portion of the guard is open so that lather and hairs will pass directly away 0 from the cutting edge thereby making it possible to keep the cutting edge free and clean while the razor is being used. With a razor of this type the blade is also not only held at the center or at any one point but is held at the ends and 5 center and also continuously along the edges so that the cutting edges are firmly gripped and held while in use, thereby eliminating any resiliency or give in the blade. 1 1

Having thus fully described the invention, what I claim as new and desire to secure by Letters Patent, is?

1. In a safety razor having a back, a handle and a blade sharpened at both edges, a guard adapted to be placed over said blade adapted to resiliently hold the same'and held by said handle inwhich the intermediate portions thereof are continuously open, providing a continuous open area behind the cutting edge of the blade and in which teeth are formed in the outer edges, with rollers rotatably mounted in the outer edges between the teeth, said guard having projections substantially in the centers of the ends adapted to hold the central portion of the blade against the back and also having posts adjacent the outer edges holding the outer edges of the guard in spaced relation to the edges of the back.

2. In a safety razor as described in claim 1, said rollers mounted on pins held at the ends of the guard, and said outer edges of the guard "0 having teeth extending downward between the rollers and engaging the pins forming intermediate supports therefor.

3. The combination with a safety razor having the guard is formed with continuous openings behind the cutting edges of the blade and provided with teeth overhanging the said cutting edges and spaced apart therefrom; of a. shield of springy material held at the center by said guard and yieldingly engaging said blade at the edges only and continuouslyalong the cutting edges just inside of the edges of the back.

4. A razor as described in claim 3 having rollers between and spaced apart by the overhanging teeth of the guard.

5. A razor as described in claim 3 having rollers between and spaced apart by the overhanging teeth of the guard, and feet extending downward from said guard engaging and holding said blade at the center thereof.

6. In a combination as described in claim 3, means continuously holding said blade at' the center thereof.

7. A combination as described in claim 3 in which the shield is substantially straight when in a free position.

8. A razor as described in claim 3 having rollers between and spaced apart by the overhanging teeth of the guard, and pins extending continuously of said guard upon which said rollers are mounted.

9. A razor as described in claim 3 having rollers between andspaced apart by the overhanging teeth of the guard, and pins extending continuously of said guard upon which said rollers are mounted, said pins made of springy material permitting yielding movement of said rollers.

10. In a safety razor of the type having a back, a handle threaded to the back, a blade adapted to be mounted upon the back, a. convex resilient shield adapted to be placed upon the blade with the edges thereof continuously engaging the edges of the blade and holding said edges at points substantially corresponding with the edges of the back against the back, a guard adapted to be placed over said shield having comb teeth in the outer edges and continuous openings over the cutting edges of the blade and a plurality of inde- 20 pendently mounted rollers positioned between the comb teeth of the guard and held in spaced relation thereby.

WILLIAM VONSCHOTT.