US2562137A - Safety razor blade changing - Google Patents

Description

July 24, 1951 A. E. TOTH 2,562,137

SAFETY RAZOR BLADE CHANGING Filed Oct. 21, 1948 34 50 H 56 ZZ 28 Y /z I l 28 Z Z L A? I .3 I i I Patented July 24, 1951 r SAFETY RAzonBLAnn-oHANG NG.- Alexander ,E.., Toth,'L ucas ctiiiity',johio,,assigilt Gillette sarety Razor, Company; B o'ston,

Masa, a corporationof Delaware r This invention relates to razors more particu-I larly safety razors and to the changing, 'of

blades therein.

An object of this invention t iq r omgg bination between the magazine and the razor whereby a blade being delivered from the magazine may be gripped o1. booked by the razor during the blade delivery operation and the blade positively held between the razor and magazine until the blade is entirely free from the magazine and then automaticallyfalls into place within the razor. During the blade delivery, the razor books; the. blade and the blade can be withdrawn-from the. magazine by a manual pull, the pressure on the razor bythe hand being remote from any cutting edge. This is lik wise true of the manual rip n t e magazine both for delivery and reca tion.

While a more recently marketed form of safety razor is herein shown with the blade hook disposed on a movable positioning bar, it is an additional object of this invention to provide blade engaging means on any of the blade positioning elements in safety razors which may hook into the central blade slot usually provided in the type of blades herein illustrated and which may be conveniently dispensed from and restored in the novel magazine disclosed.

Many types and styles of safety razors are available which employ a blade support with means for positioning the blade on the support by cooperating with a centrally apertured blade and having additional blade clamping means. The invention herein has for a primary object, the introduction of a hook means to be incorporated with the blade positioning means for engaging the blade through its aperture, to cooperate with the magazine to securely support the blade therebetween during its delivery from the magazine, to aid in the delivery, to properly release the blade upon delivery from the magazine and cooperate in guiding the blade into its proper razor assembly position. Such a hook or notch may be incorporated in various types of positioning elements which are in turn associated with a blade support. Furthermore utility is present to aid in blade return to the storageregion within the magazine when such disposal is desired.

claim, reference being had to the accompanying drawingsv forming a partof this. specification respondin -p tain hes ere vi ws 1 Re e r att e ra I I wherein like reference characters designate cor ,Fig. ,l.is ,a. side elevation of one type of safety? razor embodyingthe invention, therazor beingv in closed or ready to shave position; I ,Fig. 2. is a plan vievvof the razor of Fig. 1; p

l lijig; 3, is aside elevation of the razor of Fig. l,

the.razor ;,being in open or in position to receive a blade or allow removal thereof;

inga blade thereto tioning means; and

Fig. 6 is a bottom plan view of the cartridge partially shown in Fig. 4.

The style or type of razor shown to illustrate a typical embodiment of the invention comprises handle ID mounting plate I2. A shiftable positioning bar I4 is disposed centrally across the plate I2 and is movable toward and from the plate by suitable mechanism within the handle III as controlled by knob I6. Shifting of the bar I4 opens and closes wings I8 associated therewith as means for clamping or looking blade 20 in the razor or upon release swinging away to permit removal of a blade and the insertion of another. This mechanism and associated plate parts with their respective functions in the charging and shaving operations are well known in the art and need no further explanation herein.

In order to facilitate blade placement in the razor, each end of the bar I4 is provided with a notch 22. These notches are each formed by a minor inwardly and angularly extending face 24 from the free edge 26 of the bar and major face 28 extending from the intersection 30 of the faces toward the base 32 of such bar. In some types of razors, the positioning means is a lug, pins or a rib integral with the plate. One or more notches in any of these enhances their utility as well as creates advantages under the invention herein.

When the razor is in open position (Fig. 4), the bar I4 may be inserted through central slot 34 of a blade 20 and the terminus of the slot hooked into the notch. The blade 20 may then be withdrawn from a supplying cartridge 36 and when free of the cartridge, the blade will drop into assembly position within the razor, due to the comparatively long and angular extent of the face 28 toward the bar base 32. The razor may then be Fig. .4 is a viewon the line rv -iwni' 3 with; the cartridgeor magazine in position for deliver-.

closed and the shaving operation proceed without the necessity of manually touching the blade. During the time the blade is being withdrawn from the cartridge, it is firmly held between the cartridge and razor and being hooked onto a terminus of the positioning bar in the razor, little chance exists the blade will be dropped or otherwise misplaced.

The razor may satisfactorily coact with cartridges of various types which deliver centrally slotted blades, as for example, the cartridge 36.

A side 38 thereof may have cut-out region 40 therein forming an opening whereby a user may insert a finger therein to frictionally engage the outer blade 20 of stack disposed within a guage used in the specification relating to the operation and function of the elements of the invention is employed for purposes of description and not of limitation, and it is not intended to limit the scope of the following claim beyond the requirements of the prior art. W What is claimed and it is desired to secure by United States Letters Patent: I

In a safety razor for use with an insertable centrally slotted blade, a support for the blade,

"'a positioning bar associated with said support chamber in the cartridge which stack rests against the inner face of the side 38. Initial movement of the blade from this magazine is executed by the finger, partially exposing the blade through a slot in an intersecting end of said enclosure. The blade is then hooked into a notch in the positioning element I4 and the operation completed as described.

It is obvious the notches or hooks, while shown as being on each end of a movable bar, may be employed on positioning pins, ribs and the like and on either or both ends as shown.

It is to be understood that the above detailed description of the present invention is intended to disclose an embodiment thereof to those skilled in the art, but that the invention is not to be construed as limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings,

since the invention is capable of being practiced and carried out in various ways without departing from the spirit of the invention. The lanand adaptable to engage the slot of the blade, at least one end of the positioning bar being formed with 'a'notchj for engagement with a terminus'ofthej slot during insertion of the blade into the razor fsaid notch comprising a substan- Number 'Name' Date 2,009,272 r Muros July 23, 1935 2,048,560 Mnros July 21, 1936 2,200,530 Benjamin May 14, 1940 2,287,487 Roberts June 23, 1942 2,299,436

Testi' Oct. 20, 1942

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