US1690801A - Clipper - Google Patents

Description

Nov. 6, 1928. 1,690,801

H. VAN BRL-:E

CLIPPER Filed May 14, 1923 27M z8 1514 je, FKIG-Z w/TNESSES NVENTOQ wwwa@ ATTORNEY Patented Nov. `6, 1928.

`'UNIT/*151DV s'jrpfrlis -1,690,801 PATENT OFFICE. f

HUBERT VAN BREE, OF RACINE, WISCONSIN, ASSIGNOR TO 'RACINE ELECTRIC COM PANY, OF RACINE, WISCONSIN, A'CORPORATION 0F WISCONSIN.

CLIPPER.

Application led May 14,

The invention relates to motor-driven hair y cli pers.

nevof the ob'ects of theV invention is. to provide a motorriven hair clipper 1n which the clipper-actuating mechanism is directly connected to the driving motor without the yuse of a flexible shaft, and which permits the ready disconnection of theclipper from the motor so that different forms of cllppers may be readily connected to and used with the same motor, and more particularly the connection between the motor and the clipper includes a separable gear drive connection.

A further objectof the invention 1s to provide a simple andextremely compact clipper Y drive construction.

The invention further consists in the several features hereinafter set forth and more particularly pointed out by claims at the conclusion hereof. In the drawings: Fig. 1 is a plan view of a device embodyin the invention, with parts removed to show t e drive mechanism; Fig. 2 is a side view of the device,-parts being' broken away and parts being shown in section; Fig. 3 is a section taken on the line 3-3 of Fig. 1.

` Referring to the drawings, the numeral 4 designates generally a small electric motor having a casing 4 and an armature or drive shaft 5. A worm 6 is mounted onor may be formed integral with the shaft 5.'

The cli per includes a casin or housing 7 having aliollow interior 8 an a cover plate 9 resting upon marginal edge flanges 10 of said housing. At its rear en'd the housing 1s rovided vwith a bore 11 through which the ont bearing 12 for the motor shaft 5 projects, said bearing being on the front end wall f 13 of the motor housing. This construction permits the shaft and its worm to be properly alined with the other parts, hereinafter described, in the casing 7. The casing 7 is provided with an end wall or end flange 14 which abuts against the end wall 13I of the motor housing and is secured thereto by screws 15. To provide for quick detachment the end wall 14 of the clipper casing 7 is provided with holes 16 admitting the heads of the screws and slots 17 `communicating with said holes so that a partial withdrawal of the screws 15l permits the clipper to be turned for alining the screws 15 with the holes 16 in order that 1923. Serial No. 638,894. f

countersunk to confine' them in definite positions in the slots against shifting.

The casing 7 preferably has straight flat topand bottom portions substantially parallel to each other. The front end 18 of the casing 7 is inclined, and to this inclined face a. fixed cli per blade 19 is secured by screws 20. This orm of connection insures a rigid mounting of the blade onthe casing and permits of a handheld close to the blade, thus securing efficient control of the clipper.

A movable blade 21 cooperates with the blade 19 to perform the cutting operation. This blade 21 has a bearing surface running on the upper surfaceof the blade 19 and is guided in its movement with respect to the blade 21 by tongues 22 running in a transverse slot or groove 23 in said blade 19. The blade 21 is retained in operative position against the blade 19 by a compression plate 24 mounted on the housing and having itsl 29 fitting over the sides of the casing to hold it against lateral movement.

The post or stud 27 is alined vwith the axis of the shaft 6 and centered in a slot -30 in the front end of the casing. A flat rocking lever 31 is pivotally mounted intermediate its ends upon the stud or post 27 and its pivotal portion works in said slot 30 in the front end of the casing 7. One 'arm 33 of thislever engages the sides of a slot 34 centrally located in the rear edgerportion of the blade 21. The other arm 35 of this lever is canted or obliquely inclined from the arm 33 and is provided with a slot 36 in which a driving block 37 is slidably mounted. The block 37 is pivotally mounted on a crank pin 38 carried by a wormwheel 39. The wheel 39 is journalled on a stud 40 fixedly mounted in the casing 7 at one side of the motor shaft and is adapted to mesh with the worm 6 when the clipper is connected to the motor. The worm may be readily disconnected from the worm-wheel so that interchangeable clippers designed for the motor.

different depths of cut may be connected to The clipper is preferably gripped near the blades when operating it, and the casing of the clipper and that of the motor are made of a light weight metal to facilitate handling the device. The conductor wires 4l for the motor enter the rear end of the motor housing so that the d'o not interfere with the free movement of t e device.

I desire it to be understood that this invention is not limited to any specific form or arrangement of parts except in so far as such limitations are specified 1n the claims.

What I claim as my invention is:

l. In a motor-driven clipper, the combination of a clipper casing having an end wall including a central aperture, a motor casing having an end wall abutting against said irstnamed end wall and having a projecting shaft entering said aperture, one of said end walls having a central alining boss fitting within a recess in the other end wall, there being a plurality of slots in one of said end walls disposed substantially arcuately about the axis of said abutting end Walls and threaded openings in the other end wall in register with said slots, and headed screws passing through said slots and entering said threaded openings for clamping said end walls in abutment, said slots each having an enlarged end portion for permitting free passage Aof said headed screws therethrough after relative rotation of said end ywalls about their axis, and at least one of said slots having at its other end a counter- A having a central bore communicating with the interior of the casing, cli per blades mounted at the front portion o the casing, clipper actuating mechanism within the casing, an electric motor having a front end wall abutting against the rear end wall of said casing and including a shaft projecting into said casing through said bore and having a detachable operative connection with said actuating mechanism, and fastening means passing through the oppositely projecting end wall flange portions of said clipper casingr for releasably securing the end wall of said motor in clamping end abutment with said end wall of said casing.

In testimony whereof, I afliX my signature.

HUBERT VAN BREE.

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