US1166094A - Hair-clipper. - Google Patents

Description

M. TANAKA.

HAIR CLIPPER.

APPLICATION FILED APR. 2|, I915- L166JOQ4 Patented DMZ-28,1915.-

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M. TANAKA.

HAIR CLIPPER.

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MAS'AO TANAKA, OF NEW YORK, N. Y.

HAIR- CLIPPER.

icense.

Specification of Letters Patent.

Patented Dec. 28, 1915.

Application filed Apri121, 1915. Serial No. 22,725.

To all whom it may concern:

Be it known that I, MASAO TANAKA, a subject of the Emperor of Japan, and a resident of New York, in the county of New York and State of New York, haveinvented certain new and useful Improvements in Hair-Clippers, of which the following is a specification.

This invention relates to improvements in hair clippers and particularly to the manually controlled, power driven type.

One of the objects is to provide a mechanism that can be readily maneuvered, on

the head of a person or body of an animal, to trim the hair without muscular fatigue involved by hand operated devices and which can be used with entire safety.

Another object is to provide means combined with the mechanism whereby the clippings, dust and debris are collected and maintained until a convenient time for discharge.

These and other objects, such as lightness, strength, accessibility of parts, ease of control and simplicity of operation, are secured by the novel construction and combination of parts hereinafter described and shown in the accompanying drawings, forming part of this specification, and in which Figure 1 is a general plan View of a clipper made in accordance with the invention, the cover and certain other parts being removed. Fig. 2 is a partial plan View of the same, the cover being in place. Fig. 3 is a longitudinal sectional view, taken on line 33 of Fig. 1, and showing the motor drive. Fig. 4 is a transverse sectional view, taken on line 44 of Fig. 1. Fig. 5 is a perspective view of the lower, fixed cutter blade. Fig. 6 is a similar-view of the upper, reciprocating blade. Fig. 7 is a like view of the oscillator, and Fig. 8 is a perspective view of adjusting cap.

From the drawings to consist of a lower plate 10, substantially circular in profile, having raised side walls 11, 12 and 13, over which is a cover 15, having an extension 16, providing a mounting for the electric motor 17, the same being operated by current entering through the wires 18 in the handle 20, a switch 19 being carried by the handle convenient of access by the fingers of an operator. 7

The shaft 21 of the motor 17 has mounted the casing will be seen upon it a bevel gear 22, meshing with its mate 23, both being within, and partially supported by, the housing 24, attached by standards 25 to the cover 15, the gears being accessible through the hinged cover 26 of the housing.

The driven bevel gear 23 is rigidly mounted on the vertically disposed shaft 28 which extends down through an opening 29, formed in the cover 15, to the bottom of the casing where a step bearing 30 is provided for it.

Attached to the shaft 28, just below the cover 15 is a rotary fan, the blades 31 of which revolve freely within the casing, causing air to enter through the port openings 33 and 34, and force it exteriorly of the fixed plate 35, past the cutters and expel the air, together with any matter which may be entrained with it, into the discharge tube 36. This tube may be formed integral with the casing or engaged as shown and by means of the plate 35 and baffles 37 38 and 39 convey the air into the receptacle 40, held normally expanded by the wire frame 41, removably attached to the tube 36, the purpose of the receptacle being to gather and hold clippings, etc., blown into it.

In the lower plate 10 a rectangular opening is formed adapted to receive the fixed cutter blade 45 which is secured to the casing by means of a screw passing through the ear 46 into the lug 47 of the casing, to which the cutter is further held by the projections 48 and 49, the same engaging above and below the plate 10 respectively; also a slot 50 is formed in the edge of the cutter 45, opposite to the ear 46, and engageable with the corresponding edge of the plate 10. The cutter teeth 48 are beveled on the back or outer side as usual and are formed in the ordinary shape, their upper side 49 being raised as shown to allow for grinding. Just back of the teeth are two square pins 50, rigid with and extending above the level surface of the cutter plate, and back of these pins, central of the plate is a screw stud 51.

The upper reciprocating cutter plate 52 is provided at its front edge with teeth 53 similar to those of the lower plate with which they coact. Toward the center of the plate 52 are formed two rectangular slots engaged by the pins 50, the same guiding the plate rectilinearly when it is actuated.

Substantially in alinement with the slots 54, and midway between them, is an open recess 55 the side walls of which extend parallel for a definite distance and are then bev eled outwardly as shown.

Motion is communicated to the upper cutter by means of the oscillator 56, pivoted on the stud 51, and formed with a lug at the end 57 engageable in the recess 55. The opposite end of the oscillator is formed'with a semi-circular opening 58, terminating in two points 59, which receive between them, and are driven by, the cam or eccentri 60 secured on the shaft 28, immediately below the fan.

In order to hold the upper blade in proper close relation to the lower blade, a pair of contact posts 61, rigidly guided by the plate 35, rest on the upper surface of the cutter plate 52 and can be pressed against it under a variable tension obtained by the spring adjusting cap 62, the latter being formed with a flanged supporting edge 63 and held down by means of a knurled adjusting screw 64.

from the exact construction shown may be made without affecting the scope of the claims hereto appended.

Having thus described and explained the construction what I claim as new and desire to secure by Letters Patent, is

1. In a hair clipper, the combination with a hollow, substantially cylindrical casing, an electric motor mounted thereon, a handle and a motor control means combined with said handle, of a shaft perpendicularly mounted in said casing and driven by said motor, a fixed cutter blade attached within said casing, a movable cutter blade coacting with said fixed blade, means for tensionally maintaining said cutter blades in engagement, an oscillator pivoted to said fixed blade, said oscillator having a part engaging said movable blade, and a fan driven by said perpen dicular shaft for producing an air blast past the cutter plate teeth.

2. In a hair clipper, a casing, a motor mounted thereon, a fixed cutter blade, a movable cutter blade, means combined with said motor for transmitting reciprocative motion to said movable blade, a fan driven by said motor within said casing, baffie plates for directing the air current and a receptacle for receiving the debris, said receptacle being removably engaged with said casing.

In testimony whereof I have signed my name to this specification.

MASAO TANAKA.

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