US1065109A - Safety-razor. - Google Patents

Description

M. G. BUNNELL.

SAFETY RAZOR.

APPLICATION FILED MAY 11, 1906.

Patented June 17, 1913.

gil/wanton Wi h1 zooeo GILLETTESAFETY RAZOR COMPANY, A CORBQRATION OF MASSACHUSETTS.

SAFETY-RAZOR. l

- l. Y spgcieation of Leiters raient. patented June 11,1913,

My iy vent-ion contemplates a safety razor in which the iiexibility of the blade consti tutes; the expedient for inserting and removing the blade. The nature and advantage of my invention will, however, hereinafter more fully appear.

In the accompanying drawings-Figure 1 is a top-plan of a razor embodying the principlesof my invention Fig. 2 is a vertical section of the same; Fig. 3 is a rear view of the razor; Figa is a plan of the blade; and Fig. 5 is an enlarged detail view showing the manner in which the lugs hold the corners of the blade.

ln the present illustration my improved safety razor is shown as comprising a flat, rectangular, flexible blade A,

having two cutting edges and four corners. The blade is sutliciently lexible that it may be compressed endwise between the thumb and forenger. The holder-portion B is shown comprising a plate having a flat seat Z), for the blade. Four overhanging lugs b',

one for each corner of the blade, are shown carried by the plate-portion of the holder.

vThe lugs are shown rigidly carried by the plate and -each rigid relative to the others, and so positioned on the respective ends of the holder that the smallest distance between the overlapping portions of the lugs on each side of the holder is less than the length vof the bladefand that the smallest/distance between the overlapping portions ofthe lugs on each endv ofthe holder is less thanthe width of the blade. The disposition of the lugs herein illustrated leaves the upper sur- "face of the blade practically fully exposed and free to be flexed away from the bladeseat in removing and inserting it in position. The lugs illustrated are sho-wn so located that each will engage the blade and diagonally overlap the corner thereof. The lugs will prevent edgewise movement of the blade all directions, as, well .as prevent move-A ment away from the blade-seat of the holder. The ends of the holderyare shown provided with notches b2. The notch b2 at each end extends inwardly vbeyond the inner sides of the-overhanging portions of the lugs b at that end, This disposition of the notches permits the blade to be compressed-endwise between the*v thumb and-forelinger to such an extentI that the ends of 'the blade will assume a. position inwardly of' the overhangingv portions ofx the lugsat the, respective ends and the blade-caused to-buckle or-hump up from lts seat and its corners pass inwardly from under the overliangi'ngd portions of the lugs and thus be disengaged, from the same'. Thus the-exibility'o'fthe blade constitutes the expedient by which the blade is inserted and' removed The four lugs are all' rigid-ly connected, since they are integral with the top plateof the holder..

` As a means of starting the upward bend- -ing of the blade, the handle C is provided internally withY a plunger 0 held normally down by a spring c. The lower end c2 of this plunger projects at the lower end of the handle. A slight upward pressure on the f plungt? is suliicient to start the blade and allow it to Hex under the pressure of t-he thumb and forefinger.

With my improved arrangement no movable clamping oriholding parts are necessary for the holder, and in addition the blade is left exposedthat is to say,l the smooth upper surface of the blade is left uncovered.

It will\be seen that each lug bengages both longitudinal Aand transverse edges of. the blade.

The holder has the usual guard D.

It will be seen that the over-hanging, portions of the lugs b constitute holding means for disengaging the blade when it is flexed to draw its two ends toward each other. It will alsobe seen that the portions of these lugs i. which engage the ends or edges of the blade constitute means for preventing displacement ofthe blade in the plane thereof. The formation of the bladev and also `of the lugs can,

- however, be changed or modified without de=V parting from the spirit of my invention, so long as the -exibility of the blade constitutes the expedient for `inserting and removing the same-that is, for engaging its ends in and Ydlsengaging' them from any suitable holding means with which the razor is provided. Y

It will be seen that the fourI holding lugs engage oppositely facing edges on the blade, and that the mam body of the blade is left free to be lexed when it is inserted and removed,

straighten out being utilized to hold it down the tendency of the blade to in place ,on the holder.

What Iclaim as my invention is l. In a safety razor, the eombinationwith a flexible blade,of a holder comprising a blade-seat, a. guard, and holding means rigidly mounted on said blade-seat for holding the blade firmly in position When inserted and from which the blade is disengaged by flexing the same and means for flexing said blade.

2. In a safety razor, the combination With a flexible blade, of aholder comprising a blade-seat, a guard, and holding means rigidly mounted on said bladeseat for holding the blade firmly in position when inserted and from which the blade is disengaged by flexing the same, and means forflexing the blade While in the holder' for effecting its removal therefrom.

3. A razor comprising a guard, a flexible blade, a holder, and a plurality of securing means rigidly carried by the holder and provided With portions for overlapping the blade, the overlapping portions on each side being separatedone from the other by a distance less than the length of the blade and overlapping the ends of the blade at its corners, whereby itis necessary to flex the blade to' engage it With and disengage it from the said securing means, and means for flexing the blade to effect its removal from the holder.

4. In a safety razor, the combination of a flexible blade, a holder provided with means for engaging the ends of the blade, leaving the blade free to be flexed, and a plunger for flexing and lifting the middle of said blade, to draw its two ends lroWard each other, for the purpose set forth.

Signed by meat Chicago, Ill., this 21st day of April, 1906.

MORTON G. BUNNELL.

Witnesses:

ALBERT JOHN SAUsnR, J. Nomar.

Images