US2324555A - Safety razor - Google Patents

Description

July 20, 1943. v w. E. BLUNK SAFETY RAZOR 'mqa May 8. 1942 im /wry I Patented July 20, 1943 UNITED STATES PATENT- OFFICE sapling-RAZOR I William E. Blunk, McGregor, Tex. Application May 8, 1942, Serial No. 442,200 5 c a s. m-)

This invention relates torazors. and it has particular reference to certain new and .useful improvements in safety razors.

The principal object of the invention is to provide a safety razor having a head of triangular shape to accommodate a blade of analogous shape, provided with two sharpened cutting edges converging into a sharp point, the purpose-of which is to enable one to reach and sever beard in otherwise inaccessible places such as in facial cavities adjacent the nostrils, in. wrinkles and other depressions in which beard :cannot be removed by the conventional safety razor.

Another object of the inventionis to provide a razor which, by virtue of the triangular blade, will sever the beard by oblique engagement therewith of the cutting edges of the blade "without likelihood of cutting the skinQ In this manner, the beard is removed more effectively and without the attendant pull which results byymoving the conventional razor directly againstthe beard. i

Another object of the invention is to provide a head having a pivoted guard or shield conceal ing the blade and which is spring actuatedto open position when latching means are released by axial manipulationof a plunger contained in the handle of the razor.

Another object of the invention is toprovide a novel form of plunger actuated means for hold.

ing the pivoted guard or shield in closed and operative relation to the head proper and which means consists of a spring bridge, the extremities of which are bent and formed into retainers for the pivoted guard but so disposed and related to the plunger that depression thereof will displace the spring ends to release the guard to the influence of a separate spring to snap the guard to open position. .1 1 With the foregoing objects as paramount, the invention has further reference to salient features of accomplishment, to become apparent as the invention proceeds, taken in connection with the accompanying drawingwherein:

Figure 1 is a perspective View of a safety razor constructed according to the present inventionl Figure 2 is a detail view in perspective of the head showing the guard in dottedlines. l it Figure 3 is a vertical sectional view of the hea theinner faceof the guard 23,when the guard of the handle next adjacent to the head, showing in detail, the guard latching and releasing means. i

Continuing with a more detailed description of the drawing, the razor is provided with ahol: low handle l0, preferably knurled, as shown, in which is axially mounted a plunger ll, one end of which extends slightly beyond the end of the handle. Further reference to this plunger and-its purpose willbe made presently. 1

Thehead of the razor is of triangular shape and consists of a;plate or portion 12, stationary with respect to the handle I0 and to which the handle is rigidly attached. In Figures 3 andfi the form of securement between the handle and head is shown. The handle is bifurcated and the two legs l3 are aflixed to the plate [2 to de-. line a transverse opening edge of the head. 1

Extending through the opening [4 a mem to that of the spring member 15 and. which notches receive the spring at points spaced from either end and the midsection thereof. The pur pose of these bridges is twofold, namely, to hold the spring against lateral displacement and to resist movement of its ends towards the plate 12 when its midsection is so urged by pressure upon the end of the plunger I I. i

It is apparent that when the tip of the plunger II is urged inwardly, pressure of its end l9 upon the middle of spring I5 will warp the same, causing its ends IE to retract, by reasonof the bridges l8. An example of the displacementof the spring ends is shown'in Figure 5Yin dotted lines. The purpose of this operation will now be described...

' It will be observed that the ends I5 of 'the spring 15 which extend through the slots ll of the plate l2 are each provided with confronting These protuberances correspond to and are receivedin small depressions ll protuberances 20.

in projections -22 afiixedto and extending from is in closed position. It is through this medium that the guard is held in position until it is desired to open the same to change blades.

l l parallel withthe top flange 24 along its top edge which overreaches the top edge of the plate I2 and at either end of this flange, cars 25 are provided and apertured to correspond with similar apertures in ears 28 on the plate l2, A pin 21 extends across the plate I2 immediately below its top edge and its ends are journaled in the apertures of the ears 25 and 26, providing a hinge for the guard 23. A torsion spring 28 is so arranged on the pin 21 as to swing the guard 23 to open position, a shown in dotted lines in Figure 2, when the latches are released in the manner described, i. e., by pressing the plunger II.

The blade 29, shown in detail in Figure l is of triangular shape and has two cutting edges a, converging into a sharp point D. The object in providing this point is to afford a means for shaving off beard growing in facial cavities and inaccessible places otherwise. The point is adequately shielded to protect the slain while shaving, yet without interfering with its eifectiveness for the purpose intended. The blade is further provided with an aperture 38, preferably triangular in shape and located centrally thereof to receive a correspondingly shaped protuberance 3| inthc center of the plate l2, (Figure 2). The blade is thus held against displacement in the head and its edges are kept in proper relationship with the serrated edges cof the guard 23. Furthermore, the blade 29 has slots 32 which, when the blade is mounted in the head, receive the ends I6 of the spring H) which extend through the slots H of the plate 12. The blade, by reason of the openings 33 is made highly flexible so that its cutting edges will adjust themselves closely to the guard and plate I2.

In operation, the plunger ll whose inner end l9 enters an aperture in the middle of spring IE to prevent longitudinal displacement, isdepressed which causes the spring to warp and its ends IE to retract partially from slots of the plate 12. Not only are the ends it thus displaced, but they also move outwardly away from each other. While this movement is but slight, it is sufficient to release the protuberances 20 thereof from the depressions 2| of the projections 22 and-allow the torsion spring 28 to swing the guard plate 23 away from the plate I2. In this manner, the head is opened to remove and replace the blade 29, after which the guard 23 is snapped shut, the spring l having in'th'e meantime resumed its original shape to return the endsl E to a position to again operate to latch the guard plate to the plate [2.

Manifestly, the construction as shown and described is capable of some modification and such modification as may be construed within the scope and meaning of the appended claims is also considered to be within the spirit and intent of the invention.

What is claimed is:

l. A safety razor including a hollow handle having a bifurcated end and a triangular head in hinged sections, one of said sections being stationary with respect to the handle, the companion and guard section being hinged to said first section along one edge and having two castellated edges, a flat resilient element lying in the bifurcated end of said handle and having its ends bent abruptly and extended through apertures in said stationary section, means on said guard section and engaging said ends to latch said guard section to said stationary section, a spring between said sections, a plunger in said handle adapted to bear upon said resilient element to release said guard section to the influence of said spring to swing said guard section to open position.

2. A safety razor including a head and a hollow handle, said head comprising a pairof triangular members hinged along one edge, one of said members being apertured and stationary with said handle, the other of said members having castellated edges forming a guard, a substantially U-shaped and resilient plate having its ends bent abruptly inward and extended through the apertures of said stationary members, protubera-nces carried by and complementary to said bent ends to latch said members in operative position, a. spring between said members, a plunger axially mounted in said handle adapted to bear against the central portion of said plate to release said latching means whereby to effect opening movement of the guard member under the influence of said spring. 7

3. A safety razor including a head and a handle, said head comprising a pair of triangular members hinged along one edge, one of which is apertured and stationary with respect to said handle, a torsion spring normally urging one of said members outward from the companion member, a substantially U-shaped and resilient plate whose endsare formed to enter the apertures in said stationary member and adapted to hold saidmembers in closed position against the resistance of said torsion spring and a plunger in said handle adapted to bear upon and distort said resilient plate to efiect release of theholding means.

4. A safety razor comprising a head and a hollow handle, said head comprising complementary triangular members, one of which is hinged, and provided withcastellated edges affording a blade guard, the other being apertured and stationary with respect to said handle, spring means normally urging said members apart, a resilient plate rearwardly of saidi'stationary member and having. its ends turned into the apertures of said latter member, means mounted on said hinged member and co-operating with the ends of said plate for latching said members together against the resistance of said spring "and means in said, hollow handl'e'adapted to bear against and distort. said plate for releasing said latching means.

5. A safety razor as. set forth in claim 4. in which the latching means comprises a substantially U-shaped spring element lying transversely across one end of the handle and whose ends are directed through apertures in one memberxof the head of said razor and provided with protuberances, extensions carried by another member of the head having recesses: therein to receive the protuberances on said'ends of said spring element and means arranged in the handle of said razor adapted to bear 'against'and warp said spring element to'displace its'ends to eifectdisconnection between the said ends and said first means.

- WILLIAM E. BLUNK.

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