US2582041A - Safety razor - Google Patents

Description

M. KAPL'AN SAFETY RAZOR Jan. 8, 1952 2 SHEETSSHEET 1 Filed April 5, 1948 Fig. 2.

Max Kap/an INVENTOR.

MWWEMW together with ooperatin meansn operation upon rotatio Of the handle Patented Jan. 8, 1952 t .if. s g g r, e

hast n, ronx; N. Y.

1-- This invention comprises novel and- 1156151111111.- provements in a safety razornand morespecifie cally pertains to a razor wherein thereon and guard} are hingedly connected and automatically operable for easy insertion and safety razor blade therebetween.

The principal object of this invention is to: provide a safety razor having an improved mechanism for automatically clamping and releasing a safety razor blade between a coverand a; uard;

An important feature of the invention resides in the provision of a safetyrazor ha-v g a hollow head to which is removably securedaaz i ard, V constitutes: a cover for the-chamber with n-- it hollow head, which chamber houses the operating parts of the razor mechanism 1. A further feature of the invention resides the prov sion of a safety azor eon m, ,e Set forth in the preee ingpbia t a r-i et re f, wherei a ap is hinseda m unte u on theh e and .eap tor seeurinaflexip and v o ti-nee safe y raz r b ade 'th reb t een A r er f atu e of t e intention s desremoval of a ab e w h a t o theea or =1o91kia .;.i let er p e h a and a uard e11 sea at";

And a final important feature and object of the invention resides in the provision of a safety razor wherein the operating parts thereof shall be fully enclosed and protected against excessive wear and abuse, wherein the cap and 1ocking means are automatically operated-in. timed rela tion to each other upon a single rotational move ment of the operating rod of the zor, and wherein there is provided a device which is simple of construction, dependable in operationand inexpensive to manufacture. I

These, together with various ancillary features and objects of the invention which will later become apparent as the following description pro.- ceeds, are attained by this device, a preferredenirbodimentof which has beenillustrated, solelyby jer-red embodimentor the invention; l

- Fi ure 2 is a perspective view ofthe a ran ement ofvFigure 1', the cap bein shown irrits opep p ti and a safety razor blad b ins ind gated inldotted' lines todiselose the ma nerpi-a pl i e the r or;

the section line 5-5 of Figure f1, Q39, open position being indicated dotte t therein; and p I p Figure-o is a vertical transverse sectionalr detail view, parts being-broken away, takenubstanr tially upon the plane'of the section linefifiieu-fiaof Figure 5 andindicatihg-zthe positionsof the gap, guard, headand a razor blade rclamped there between;

Referring now more"specifically tothe acoomepanying' drawings wherein like numerals desige nate sim ilar parts throughout the variousviews, attention isidirected-first primarily to 318. 1 Sill and- 2- wherein a preferredembodiment of the invention includes a hollow.,;head- -rne n;ber l- 9 which is open' at its top, aswshown Eigur e '5, and which is provided zwitha preferably ,intee aL tubular handle .12 in which is suitably journaled an operating rod- .ip i having .a detachable fin er g'ripor knurled portion 1 .6 .atitsouter extremity for-manipulation of the rod, .ariduwhich at its ii iner extremity and within-the confines ofthe hollow head- 4:0 is provided :with a plate in the form o-i-a disk l il. This diskha'sa collaror sleeve nes I 3 attached thereto or formed thereon and is sec red t vh head a by emovable S Wh e i i d sir d to" pram acc or the'hollow head" to: Th g p i a r i removed irlac a s i o 'lth' hemm ner'surface of the cap 32.

, 3 after by merely removing the screws 24 after the cap 32 is raised.

At one end thereof, the head In is provided with a pair of parallel lugs 26 which terminate in loops 28 for receiving a hinge pin 30 therein, this hinge pin serving to journal and pivotally connect a cap plate 32, as by means of an apertured boss 34, to the head It. A leaf or coil spring 33 of anysuitable type. is engaged with arm 36,;pin 36 and capv 32 and yieldingly urges the cap to its open position when released by the disk l8 as set forth hereinafter.

The boss 34 is provided with an integral arm 36, see Figures 3 and 5, by means of which the cap may be actuated selectively into its open v closed position as set forth hereinafter.

This arm 36 preferably comprises'a narrow strip which overlies a slot 38 formed in an end a wall of the head [0 adjacent the lugs 26.' Operable through this slot;-is an actuatin means whi'clifconnects thearm 36 to the plate 18 for operation of the former by the latter. This actua'tin'g- -mean's consists of a crank pin 40 carried upon' the plate l8, and a-connecting rod 42 journaledat one end upon the crank pin and at the other end pivoted as at 44 to a link 46 whose other sire is journaled as at 48 to the end of the arm 36. It is contemplated that when the operating rod-His oscillated in one direction by the thumb or finger grip member I6, the crank pin 40 will cause theconnecting rod 42 and the link 46 to fpivotally move the arm 36 and thereby oscillate the cap 32 about its hinge, from its open to its closed position, as shown in dotted and full lines, respectively,- in Figure 5. The position of the actuating linkage for the open and closed positions is shown'respectively in dotted and full lines-in Figure 5, also.

' The guard 20, as shown best in Figures 2 and 5, is provided with an aperture 56 for the reception and passage of a hook 52 secured to the. in- Thus, as the cap is raised or lowered, the hook is withdrawn or returned through theiaperture 50 into the interior 6f the hollow head member I8; A cam member or finger 54 is carried by the disk [8 in a position to'en'g'age the hook 52, whereby the cam will overlie the hook and prevent withdrawal of the same, and-hence lockand' clamp the .cap in its closed position. The shape of the cam surface 54 is such that any desired pressure can be exerted upon the hook, whereby the cap .can flex and clamp a safety razor blade of any desired construction, such as that indicated by the blade 56, between the guard 20 and the cap 32. It should be here noted that the guard 28 is provided with a plurality of positioning bosses '58 thereon which are engageable with complementary positionin aperture 60, with which various types of safety razor blades are provided, while the aperture 50 and the hook 52 are likewise positionedto align with the usual longitudinal slot or opening 62 likewise customarily provided in razor blades. 7 As is well known, different makes of razor blades have different shapes and arrangements of ape rtures 66 which adapt them to be operable with only selected types of razors, by means of correspondingly designed registering bosses ,thereon. .In this invention various guards may be employed, each of which has its boss arrangejrn'en't designed to receive various known types of blades, or..if preferred, to receive an entirely different'type of blade. I

The crank'pin 40 and" the cam 54' will'be angularly spaced upon the rotatable disk [8 so as to cause a sequential operation of the actuating means for pivoting the hinged cap, and for causing the engagement or withdrawal of the locking cam 54 from the hook 52.

From the foregoing, it will be readily seen that a single twist of the operating rod I4 is sufficient, after a blade has been placed upon the guard in proper position thereon to first positively close the cap' upon the blades, andthjereafter engage the locking cam'54 with the hook 52 to thereby clamp and draw the cap tightly upon the blade,

" flexing the latter against the convex surface of .7 ,the guard, to render the razor ready for use. Ob- 5 viously, the reverse oscillation or rotation of the rod 'l4' will be sufficient to release and disengage the parts, whereby the blade may be removed.

From the foregoing, the construction, operation and obvious advantages of the device will bereadily understood and further. explanation is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art after a consideration of the foregoing specification and accompanying drawings, it is not desired to limit the invention to the exact construction shown and described, but all suitable modification and equivalents may be resorted to falling within the scope of the appended claims. Having thus disclosed and described the invention, what is claimed as new is as follows:

1. A safety razor consisting of a head having achamber therein and a tubular handle attached thereto,"a razor blade guard detachably mounted upon said head and forming a closure for said for pivotal movement towards and from said head to releasably clamp a razor blade against said guard, actuating means in said chamber for causing pivotal'movement of said cap, an operating rod ro'tatably journaled in said handle and extending'into said chamber, said operating rod being connected'with saidactuating means, locking means in said chamber responsive to a partial rotation of said control rod "for fastening said cap in closed position upon said guard.

2 .'A safety razor consisting'of a head having a chamber thereinand a tubular handle attached thereto, a' razor blade guard detachably mounted upon said head and forming a closure for said :chamber, a cap hinged to said head at one end for pivotal' movement towards and from said head to releasablyclamp, a razor blade against said guard, actuating means in said chamber for causing pivot- ,al movement of said cap, an operating rod rotatably journaledin said handle and extending into said chamber, said operating rod being connected with said actuating means, lockingjmeans in said jchamber responsive to a partial rotation of said control rod for, fastening said cap in closed position upon said guard,,said guard having an aperture, {said cap having a hook insertable through said iaperture into said chamber, said locking means including a rotatable cam releasably engageable with said hook.

65 3.. In a safety razor; a head having a chamber therein, a combined razorguard and closure for said chamber detachably secured to said head, a cap hinged to said head at one end thereof for pivotal movement towards and from said head, a plate in said chamber mounted for oscillatory movement, a'linkage connecting said plate to said cap-"for causing positive pivotal movement of the latter .in response to oscillation of said plate, means for oscillatingsaid plate, said guard having an aperture-therein, a-locking hook on said chamber, a'cap'hinged to said head at one end i cap receivable through said aperture into said chamber, locking means on said plate engageable with said hook to lock said cap to said guard.

4. The combination of claim 3 wherein said locking means comprises a cam extending arouately of said plate about its axis of rotation.

5. In a safety razor, a head having a chamber therein, a combined razor guard and closure for said chamber detachably secured to said head, a cap hinged to said head at one end thereof for pivotal movement towards and from said head, a plate in said chamber mounted for oscillatory movement, a linkage connecting said plate to said cap for causing positive pivotal movement of the latter in response to oscillation of said plate, means for oscillating said plate, said g'uard having an aperture therein, a locking hook on said cap REFERENCES CITED The following references are of record in the fileof this patent:

UNITED STATES PATENTS Number Name Date 1,912,155 Muros May 30, 1933 5 2,071,105 Black Feb. 16, 1937 2,324,555 Blunk July 30, 1943

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