US2598243A - Razor - Google Patents

Description

May 27, 1952 A. ESTRADA l 2,598,243

RAZOR Filed March 16, 194e ATTORNEY Eatentecl May 27, 195

UNITED STATES PATENT OFFICE RAZOR Alberto Estrada, Los Angeles, Calif.

Application March 16, 1946, Serial No. 654,968 1 Claim. v(c1. 30-59) This invention relates to new and useful improvements in a shaving device, in which means for operating the same are enclosed within the handle and the head, and more particularly to such devices, where a shaving blade of conventional design is moved to and fro and with its cutting edge in direct contact with the skin.

With the above and other objects in view, this invention consists of the novel features of construction, combination, and arrangement, of parts, hereinafter fully described, claimed, and illustrated in the accompanying drawings, forming part of this specification, and in which similar characters of reference indicate corresponding parts in all views, and in which:

Figure 1 is a longitudinal section of my invention.

Figure 2 is a longitudinal section taken on line 2-2 of Figure 1.

Figure 3 is a transverse section taken on line 3-3 of Figure 1.

Figure 4 is an enlarged sectional view of a detail of my invention.

Figure 5 is a plan view of Figure 1 with the blade holding means removed.

Figure 6 is a perspective View of the blade holding means.

Referring now particularly to Figures 1, 2, and 3 my shaving device consists of a handle I0, which is secured to a hollow head II, as shown at I2.

A spring I3 is housed within the handle III,`

one end of this spring being attached at I4 to a knob I4 rotatably arranged within the handle I0. The knob I4 is provided with openings I5, which may be engaged by a spring prong I6 formed from the handle I0. The other end of the spring I3 is fastened at I1 to a disk I1, which is secured as at I8 to a hub I9 extending from a gear and rotatably arranged within the head II. As shown at I8, the disk I1 and hub I9 are also connected to a rod 2 I, which extends through the hub I9 and gear 20 into a pinion 22. As shown at 23 the rod 2l is formed with a shoulder to act as a spacer between the gear 20 and pinion 22.

A gear 24 and a pinion 25 are rotatably mounted in the housing I I, as shown at 26, and in a plate 21, as shown at 28. This plate 21 may be secured to the head II as by means of screws 29. Thus arranged the gear 20 is in mesh with the pinion 25 and through the gear 24 engages the pinion 22. A friction disk may be brought into contact with the gear 24, said disk 30 ex- 2 tending into a threaded stem 3I through the head I I and terminating into a knob 32.

The other end of the rod 2| extends through the knob I4 and is threaded as at 33 to receive a nut 34, thus longitudinally holding the knob I4 in place within the handle I9, but still allowing a free rotary movement of the knob I4.

As may be clearly seen now, when the friction disk 30 is brought in full contact with the gear 24, the spring I3 may be wound to any desired tension by means of the knob I4 and locked by the spring prong IB and openings I5.-

' The pinion 22 extends into a hub 35 and through the plate 21 as shown at 36 in Figure 4. An eccentrically located bore is provided in the hub 35 and pinion 22 to accommodate a pin 31,

the latter being normally held against the shoulder 33 by a spring 39.

The plate 21 carries the usual guards 49 and is provided with dovetails 4I. Balls 42 may also be arranged in the plate 21, if so desired.

Referring now speciiically to Figures 1, 2 and 6 a blade holding member 43 is formed from a lower plate 44 and an upper plate 45 which are hinged as at 43. The upper plate 45 is provided with a latch member 41 to engage a notched portion 41 on the lower plate 44 when in a locked position. The upper plate 45 also carries ribs 49 which in a locked position fit into grooves 50 in the lower plate 44. The latter also carries downwardly extending and inwardly bevelled lugs 5I to slidably fit over the dovetails 4I of the plate 21.

As may now clearly be seen that by means of the ribs 49 passing through the slot 52 of a conventional razor blade 53 and by the locking members 41 and 43, the blade 53 may securely be held in place between the lower plate 44 and the upper plate 45.

The blade holding member 43 may then be slidably mounted on the plate 21 by means of the lugs 5I and dovetails 4I untilI the pin 31 engages a slot 54 in the lower plate 44. The pin 31 may be depressed until the blade holding member 43 has cleared the latter.

As may be now fully understood from the foregoing description, that after releasing of the friction disk 30, wound up spring I3 will operate the gear 20, the pinion 25, the gear 24 and the pinion 22 and by means of the eccentrically rotating pin 31 engaging the slot 54, will cause a to and fro movement of the blade 53 and'blade holding member 43.

To reduce friction the underside 55 of the` lower plate 44 may engage the balls 42.

It is obvious that slight changes may be made inthe form, construction and arrangement of the several parts, as shown, within the scope of the appended claim, without departing from the spirit of my invention, and I do not, therefore, Wish to limit myself to the exact construction and arrangement shown and described herein.

What I claim as new, and desire to secure by Letters Patent of the United States, is:

In a device of lthe classdescribed, a blade holding member `comprising a lower and an upper plate hingedly connected, said lower plate having a notched portion, the upper plate being formed with a latch member adapted to engage the latter, the lower plate having grooves and ribs upon the upper plate adapted to engagesaid grooves, when said plates are in lockedpositon, a plate provided with guards and being formed with dovetails, downwardly extending and inwardly bevelled lugs upon the aforesaid lower plate adapted to slidably iit over said dovetails.

ALBERTO ESTRADA.

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

UNITED STATES PATENTS ig Number Name Date 1,199,132 Wakeley Sept. 26, 1916 1,552,543 Conill Sept. 8', 1925 y1,823,100 Hodge Sept. 15, 1931 2,030,658 Schodlbauer Feb. 11, 1936 2,146,947 Enright Feb. 14, 1939 FOREIGN PATENTS Number Country Date 473,041 Great Britain Oct. 5, 1937

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