US2487886A - Multibladed razor - Google Patents

Description

Nov. 15, 1949 G. s. McCUNE MULTIBLADED RAZOR Filed Jan. 26, 1945 Ana-47oz @Lf/VA/ v 5. M CUA/A 5) 42m 4 HrroeA/EK.

Patented Nov. 15, 1949 UNITED STATES FATENT OFFICE.

2,487,886 I 4 MULTIBLADED'IRAZOR Glenn s. McOune, Richmond'Heights, M0... Application January 26, 1945. Serial No. 574 729 4 Claims. 1

This-invention relates to safety razors, and has for its principal object the provision of a multibladed razor which is simple in its construction, inexpensive to make and possessed of novel fea tures: making it possible to give a close, smooth shave withbut a single pass over the skin.

Aspecific object of theinvention is to provide a razor head and handle which are made from a single piece of materialshaped, folded and united inform a. unit capable of accommodating a plu rality of removable blade-holding members.

It is.also an object of the invention to provide a. safetyrazor which may be assembled and disassembled with. ease and. rapidity.

A further purpose of the invention is to provide a. safety razor having removable blademounting means in which extra. blades may be positioned for ready placement in a razor head.

A still, further object of the invention is to provide a safety razor having the qualities outlined in the foregoing objects that is neat in appearance and easy to clean and dry.

Other objects and advantages will become ap parent as the description proceeds, and. a more comprehensive understanding of the invention will be afforded from the following detailed description when considered in connection with the accompanying drawing in which like numerals have been used throughout the different views to designate like parts and in which: I

Fig. 1 is a side elevational view of a. razor embodying a form of the invention and showing the same assembled;

Fig. 2 is a rear elevational view illustrating its construction;

Fig. 3 is an ideal vertical sectional view taken along the line 33 of Fig. 2 showing the position of: the blades and their holders and the clamping mechanism for holding them in position;

Fig. 4 is a cross-sectional View of the razor handle taken along the line 4-4 of Fig. 1;

Fig- 5 is a plan view of a removable bladeholding member which holds a blade in position inthe razor head;

Fig. 6 is a perspective View of a movable skirt carried in the razor head to close the ends thereof;

Fig. 7 is an. ideal sectional View illustrating an alternate method of mounting the blade-holding members in'the razor head; and

Fig. 8 is a plan View of the blank from which the body of the razor is formed.

In its preferred form, the razor comprises a shaving head II, a handle I2, and separate bladeholding members l3, Hand l5, assembled as illustrated in Figs. 1 and 3. The head of the razor of the razor is so shaped that when the blade-holding members;v or separators, are-clampedin their proper places. a blade It, held on the separator l.3,.is positioned for'shaving. This blade is presented. toa'given point onthe skin,.first. A second blade. 7 l7, and. a, third blade l8. held, respectively, on'.

the separators l4 and [5, are arranged to'follow the blade l 6 passed this point in the order named. Thus, the three blades, are disposed in tandem vto be passed over the skin one after the other. I

Their cutting edges-are substantially paralleland each blade is heldfirmly by-a suitable clamping-v devicewhich holds the; separators in the head. In the embodimentof the invention. illustrated, this clamping means takes the form of a screw l9 which is threaded at 2| to engage anut 22.

vides a meansfor rotating; the screw. The oppositeend of thescrew formsa bearing surface 25 which acts againsta skirt 26 undergirding the separators I 3, i l and i5. This shirt is, attached.

to the head at eachof its sides and pivots about the pins 2! and 28 soas to be movable under the forces developedv by turningthe screw l9. This;

latter action moves the skirt, upwardly and clamps the separators l3, l4 and I5, together with the blades IE, I! and I8, firmly between it and the top of head H. Two wings29 and 30 of the skirt.

26 serve to close the openends of theheadand enhance the lines thereof.

The removable blade-mounting means employedin the head ll may take the, form of the separators shown in. Fig. 5. Each separator, three of which are shown superposed, comprises a body plate 3|. 3la and 3|b, blade clamps and positioning projections. For each separator two,

blade clamps 32 and 33- are formed fromcut sections of theplates 3| ,y3la. and 38b, and are bent so asto hold a double edged blade 34 in position thereon. One end 35 of each plate extends a. fixed distance from the blade clamps 32 and 33 thereof, that is a function of the dimensions of the blade used. This dimension of the separator is so chosen that when theshoulders 3E and 31 of the blade are in abutment with the clamps 32 and. 33, the cutting edge of the blade will extend beyond the end 35 only'an amount sufficient to give a close; comfortable shave with absolute safety.

Each of the separators is similar in shape with the exceptions of slightly different longitudinal dimensions (Fig. and the positioning projections individual to each which assure the proper placement of the blade-holding device in the head. It will be appreciated that each of the blades must occupy a position in the head which gives optimum shaving results and still provides absolute safety. These conditions are met by maintaining each of the blades at a certain angle with each other and in proper spaced relationship so that they converge on what may be termed as a shaving point. The blade angles are fixed by the position of the slots in the back of the razor head and the spacing of the blades by the length of each separator. Since it is imperative that all critical relationships of the parts be maintained, provision against the incorrect placement of the separators in the head is made.

To accomplish this purpose, a positioning projection 38 for the separator I5 is provided and is so sized as to fit in a slot 39 (Fig. 2) in the back of the head I I. Likewise, a pair of projections 4| and 42 and a larger projection 43 for the separators Hi and i3, respectively, are provided. These projections are insertable in their distinctly different slots, which are the slots 44 and 45 for the projections 4| and 42 and a slot 46 for the projection 43.

It is thought advisable at this point to call attention to the salient fact that, while it is necessary for the proper angular relationship of the blades to be maintained when a plurality of blades are used in the razor, it is not necessarily so when a single blade is used, if such use is ever occasioned. In other words, if only one separator is inserted in the head and the screw |9 is adjusted to clamp this separator in position, it is obvious that the blade carried on the particular separator will be at a somewhat different angle than it would be if three separators were inserted in the head. This condition presents no problem, however, since it would be only required to alter the angle at which the razor is applied to the skin to brin the cutting edge of the blade into proper shaving position. The same would be true if only two blades were used since the angularrelationship of the blades, together with their proper spacing would be maintained by their proper placement in the head, and it would only be required to rock the entire razor into a different cutting position to bring both of the blades into proper shaving position. This, in effect, would compensate for the change in the position of the shaving point due to the absence of one separator.

The arrangement for mounting the blades in the head of a razor just described provides for quick, accurate placement of the blades and assures a convenient way for carrying extra blades. Here, the extra blades may be positioned on extra separators and they are ready for instant use. Moreover, by mounting the blades in this manner, all of the parts of the razor are readily accessible for thorough cleaning and drying. It is conceivable, however, that for some uses it may be desirable to fix the separators in the head at the expense of these distinctly unique advantages. This may be done as illustrated in Fig. 7. Instead of the projection-slot arrangement, the separators, such as 41, 48 and 49, are formed to be pivotally attached to the back of a head Ila by suitable hinges 5|, 52 and 53, respectively. In all other respects the parts are like those previously described. r

As contemplated in its present embodiment, the razor just described may be produced inexpensively by the following method. The body of the razor comprising the head H and the handle 52 is made from a single piece of material such as that shown in Fig. 8. This piece of material, which may be shaped by stamping, is also punched to form the slots 39, 44, and 46, and a hole 54 provided for the screw |9. The sections 55, 56, 51, 58 and 59 form the top, the two sides, the back and the bottom, respectively, of the head The tubular handle II is formed from the sections GI, 62 and 63 and assumes a triangular shape (Fig. 4) which makes the razor easy to hold and prevents the handle from turning in the hand. As uniting members, the wing sections 64, 65, 66, 61, 68 and 69 also serve to reenforce the head so that the proper angular relationship between the top and the bottom 58 will always be maintained despite the forces applied to clamp the blade-holding members in the head.

After the blank shown in Fig. 8 has been shaped, the body of the razor is formed by bending and folding it along the section lines indicated and as illustrated in Fig. 2. Here the sections 66 and iii are bent under the sides 55 and 51, as the top 55 is bent downwardly and the wings 64 and 55 are folded over the back section 58. The bottom section 59 is then bent upwardly as is the handle section 52 until both are at a proper angle with the top, and the wings 68 and 69 are folded under the bottom section 58. Next, the wings 64, 55, 68, and 59 are secured to the back and bottom sections 53 and 59 as by spot welding, and the assembly is completed by fixing the skirt 25, also formed by stamping, in its proper place.

The separators may be made also by stamping them to the desired shape and forming the guard 35 as a part thereof. By a subsequent operation, the blade clamps 32 and 33 are bent into shape from the sections of the plate 3| cut in the previous operation.

In operation, the razor is quickly conditioned for use by positioning the blades on the separators, and, while holding the razor so that the mouth of the head extends upwardly, dropping them into their proper places in the head. The knob 24 at the foot of the handle is then turned to clamp the separators in their proper shaving positions. During the clamping action, the weight of the separators together with their blades hold them in their slots and keep them flush with the back of the head By loosening the screw H], the separators may be withdrawn from the head their blades removed, and the parts cleaned and dried for subsequent use. Further, the razor is so shaped that it may be flushed clean with tap water while completely assembled.

While specific embodiments of the invention have been illustrated and described, it is apparent that many changes and widely different embodiments could be made thereto without departing from the invention in spirit or scope. Accordingly, the recitations andrepresentations herein made are to be interpreted as illustrative only and not in a limiting sense, and, insofar as the changes and embodiments to which the invention is susceptible fall within the appended claims, they are included as if described.

What is claimed is:

1. In a, safety razor, a shaving head having a top, bottom, back and sides, a handle attached to the bottom of said head, a plurality of bladev mounting members having projections passed into slots provided in the back of said shaving head, said members also having means associated with each to clamp and hold a blade in position with respect to an end thereof, and a threaded member extending through said handle having one end thereof bearing against the lowermost of said mounting, members and turnable to clamp all mounting members and the blades carried thereon into shaving position between the top of said head and the lowermost mounting member, whereby said blades are maintained at acute angles with each other and with their cutting edges substantially parallel.

2. In a safety razor, a shaving head having a top, bottom, back and sides, a handle attached to the bottom of said head, a plurality of blademounting members hinged to the back of said head, said members having means associated therewith for clamping and holding a blade in position with respect to a guard formed as a part of each of said members, and a threaded member extending through said handle having one end thereof bearing against the lowermost of said mounting members and turnable to clamp all mounting members and the blades carried thereon into shaving position between the top of said head and the lowermost mounting member, whereby said blades are maintained at acute angles with each other and their cutting edges substantially parallel.

3. In a. safety razor, a shaving head having a. top, bottom, back and sides, a handle attached to the bottom of said head, a plurality of blademounting members having portions thereof supported on the back of said head, a skirt undergirding said mounting members and pivotally attached to the sides of said head whereby to be movable with said members and close the ends of said head between the lower edge of its sides and its bottom; and a threaded member extending through said handle having one end thereof bearing against said skirt and turnable to clamp all mounting members and the blades carried thereon between said skirt and the top of said head whereby said blades are maintained at acute angles with each other and with their cutting edges held substantially parallel to present the same in tendem to an area to be shaved.

4. As an article of manufacture, a razor blade holding device comprising a single piece of material shaped, folded and joined to form a. razor head and handle both integral with each other, a plurality of blade-holding members carried in said razor head having means associated with each to clamp and hold a blade in position with respect to one end of each of said members, and means operable to clamp and hold said bladeholding members in said razor head to maintain them in positions relative to each other whereby thecutting edges of blades held thereon are presented in tandem to an area to be shaved.

' GLENN S. MCCUNE.

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

UNITED STATES PATENTS Number Name Date 1,146,945 Molkenthin July 20, 1915 1,599,607 Zeller Sept. 14, 1926 1,829,667 Mirafuentes Oct. 27, 1931 1,920,711 Pelizzola Aug. 1, 1933 2,051,160 Behrman Aug. 18, 1936

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