US2400227A - Hair extractor apparatus - Google Patents

Description

May 14, 1946. J. FIGHTER I HAIR EXTRACTOR' APPARATUS Filed June 9, 1945 WN. NNN

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INVENTOR. JU LIU 5 FIGHTER Patented May 14, 1946 HAIR EXTKACTOR- APPARATUS Julius. Fichter, South. Euclid, Ohio, assigner to Maurice M.. Cohen, ClevelandHeghts, Ohio Application Janet); 1945, Serial No. 598,534

(Cl. E28-355) 4 Claims.

The present invention relates toanv improved' power operated hair extractor apparatusV for re moving undesirable hair from the skin, and more particularlyto improvements in the typef of hair extractor apparatus' disclosed in the patent application of Harry Orner, Serial No. 561,565'.

In the hair extractor apparatus disclosedA in the aforementioned application, there is provided a pencil-like handle having a sleeveproj'ecting` from one end thereof andi a shaft extending from the projecting end ofthe sleeve and carrying a head on the end thereof. The head provides an annular surface against which the end of the sleeve may be intermittently pressed for clasping hair. The sleeve and shaft are rotated and the sleeve is reciprocatedflongitudinally during'the rotation thereof for clasping and pulling hair entering between the end of the sleeve andthe head of the shaft. The power for actuating the shaft and' sleeve is furnished by an electric motor mounted on a separate base and connectedwith the shaft through a flexible cable, for example, that extends from the motor to the handle of tht; apparatus. It has been found that the'vstructuredlis` closed in the said patent application is subject to wear in certain parts thereof and this wearing of partscauses excessive play between the-sleeve and the shaft so that undesirable vibrations and noise occur after the apparatus has been in usel fork sometime. l

An object of the present invention, therefore, is to provide a power-operated hair extractorl so constructed that there is a minimum of wear of the parts and which will give long service 'Without developing undesirable vibrations, noises and loss of efficiency.

Another object of the invention is to provide a hair extracting apparatus comprised of parts that are relatively easily manufactured and' assembled, but which mechanism operates with precision and efficiency.

Other objects and advantages of the invention will be apparent from the following description of one embodiment of the invention, reference being had to the accompanying drawing wherein a View in section of a hair extractor mechanism is shown.

In carrying out my invention, I propose to cause the rotating and reciprocating sleeve ofl the extractor apparatus to extend substantially the full length of the handle and toY be journalled inside the handle by two anti-friction members, one bearing being located adjacent to. each" end of the handle, thus minimizing the possible wobble at the projecting end of the sleeve.

Also, I propose to extend the head carryingV shaft through the sleeve and to provide two bearing` surfaces between the shaft and the sleeve, which surfaces are located adjacent to opposite ends of the` sleeve, respectively, which structure minimizes endr wobble of the shaft and minimizes friction between theshaft and sleeve.

The sleeve is adapted to carry a member hav-ing a channel extending about the sleeve, the walls of which channel form a cam, and a cam follower member extends from the handle into the channel and engages th'e cam surface for causing the member on the sleeve tobe actuated longi tudinally as it is rotated by the sleeve. A spring connection is provided between the cam member and the sleeve so that theY cam member resiliently` urges the sleeve in the hair clasping direction during each revolution of the sleeve, and a stop member is provided on the sleeve which is engaged by the cam member for positively moving the sleeve in a direction to release hair from between the end of the sleeve and the annular surface of the head carried by the shaft extending through the sleeve. Y

It is toy be understood that although the h'air extractor shown is a preferred form of the inven'- tion, the invention might be embodied in other forms and still fall within the purview of my inventicn.

Referring now to the drawing, I have shown a' hair extractor apparatus, indicated generally at 5, which' apparatus may be used for extracting hair froml the skin. The apparatus comprises a tubular, pencil-like handle 6, which handle is formed of a tubular section 'l having a tapered nose member 8 threaded in one end thereof and a bushing 9 threaded in the opposite end thereof.

MountedA within the handle 6 is a sleeve H, which sleeve preferably comprises a metallic tubular steel member that extends substantially the length of the handle 6, and one end I2 of the tube extends through a bore I3 in the nose portion 8 of the handle, the sleeve clearing the walls of the bore. The sleeve Il is journalled in the handle by two anti-friction needle type rolle-r bearings t4 and l5, which bearings are press fitted in the nose part 8 and the bushing S of the handle 6l, respectively. The needle bearings I4 and. l5 each comprise a band of metal il surrounding the sleeve Iland having the end edges thereof turned inwardly for retaining a plurality of rollers I8, which rollers are pointed at each end. This type; of bearings permits free rotation of the sleeve in the bearings and also permits the sleeve to move longitudinally with relative freedom.

A shaft 20, which may be formed of a solid steel rod, which preferably has a hollow portion 2| formed at one end thereof, extends through the sleeve Il, and the shaft 20 is enlarged at 22 and 23 for forming two bearing surfaces by which the shaft is supported in the sleeve. Preferably, the bearing surfaces are adjacent opposite ends of the sleeve and thev portion of the shaft intermediate the bearing surfaces is spaced from the walls of the sleeve. A head 24 is formed at one end of the shaft 20 for providing an annular face 25 that is adapted to cooperate with the end 26 of the sleeve for forming a hair clasp ing device.

The shaft 20 is adapted to rotate the sleeve and is connected in driving relation therewith by a pin 28, which pin extends through an opening formed transversely of the shaft, the ends of the pin 28 being secured in an annular bearing race member 29 which surrounds the sleeve I but has sufficient clearance from the sleeve to permit the sleeve to move longitudinally therethrough. The pin 28 extends through slots 30 and 3| formed in the sleeve, and when the shaft 20 is rotated the pin engages the sides of the slots for driving the sleeve. The slots permit the sleeve to move longitudinally relative to the shaft.

The annular member 29 forms one race of a ball bearing, which bearing includes an annular race 32 that is press tted within the tubular portion 1 of the handle 6 and which provides a race for balls 34 which are interposed between the members 29 and 32. The annular member 29 is resiliently urged toward the member 32 by the action of a spring 35 that surrounds the shaft 20, one end of the spring being secured in a collar 36 attached to the shaft 20 by a set screw 31 and the opposite end of the spring being attached to an annular member 38 which forms a retaining member for balls 39 which roll in a raceway 40 formed in the end of the bushing 9. Thus, the members 29, 32 and 34 are retained in operative relation for forming a bearingby the resiliency of spring 35, and this bearing and the spring 35 also positions the shaft 20 within the handle 6. It is apparent that when the shaft 26 is rotated the sleeve will be rotated by the shaft, and the sleeve may move longitudinally relative to the shaft 20.

The sleeve is adapted to be reciprocated longitudinally during rotation thereof by a cam member 42 which is mounted on the sleeve, there being clearance between the sleeve and member for permitting relative longitudinal movement therebetween and the member 42 is positively connected with the sleeve for rotation by the sleeve by a set screw 4| which extends into the slot 3l. The cam member 42 has a channel 43 formed thereabout, which channel provides cam surfaces 44 and 45 that are adapted t0 be engaged by a cam follower 46 that extends from the handle into the channel. The cam follower 46 comprises a ring like member 41 supported on an inverted T-shaped shaft 48 press fitted in a plug member 49 threaded into a projection D formed on the handle 6. A plurality of rollers 5| are interposed between the ring 41 and the shaft 48 for forming an antifriction roller for cam member 42 a coil spring 51 is disposed about the sleeve and compressed intermediate the member 42 and a collar 48 secured to the sleeve by a set screw 59. The channel 43 is shaped so that when the sleeve I rotates, the cam member 42 is urged to the right, as viewed in the drawing, and by the intersection of the cam follower 46 and the wall 45 of the channel, this movement is translated to the sleeve through the spring 51. Thus, the sleeve |I will be resiliently urged in a direction for causing the end edge 26 thereof to engage the annular face 25 of the head 24. Preferably, the form of the channel 43 is such that the sleeve is urged in this direction for approximately one-half of the revolution of the sleeve and then the member 42 is moved in the opposite direction by the spring 51. The member 42 will abut the stop 55 for positively moving the sleeve to the left, as viewed in the drawing, for releasing any hair caught between the end edge 26 and the surface 25. If for any reason the spring 51 could not move the sleeve to the left, the coaction of cam surface 44 with the follower 46 would positively move the member 42 to the left against the stop 55 and move the sleeve. Thus, as the sleeve is rotated by the shaft 20 the sleeve is intermittently moved toward the surface 25 of the head 24 for clasping hair between the end thereof and the head, and the rotation of the shaft and sleeve remove the hair from the skin and then the hair is released. A clasping action takes place through the spring 51 so that the spacing between the surface 25 and end 26 of the sleeve may vary according to the thickness of the material clasped between the two surfaces without straining any of the parts. Also, the spring 51 provides a shock absorber effect so that hair caught between the surfaces 25 and 26 will not be squeezed off. Furthermore, the spring fauses self-adjustment between the cam surfaces and cam follower member, and the surfaces 25 and 26 so that wear between such parts will not aiect the efhciency of the apparatus.

Preferably, the shaft 20 is adapted to be driven by an electric motor, for example, not shown, which motor may be mounted on a separate base and connected with the shaft through a flexible cable, also not shown, which cable may be secured in the tubular portion 2| of the shaft 20. Also, it may be ldesirable to provide a housing member over the spring 35, which member may be threaded on the bushing 9.

By extending the sleeve lengthwise of the handle and journalling the sleeve in the bearings |4 and I5 located adjacent opposite ends of the handle, very little, if any, wobbling will occur at the protruding end I2 of the sleeve, due to wearing between the sleeve and its bearing. Also, by providing the bearing surfaces 22 and 23 between the shaft and the sleeve adjacent the ends of the sleeve, any wear between the sleeve and the shaft will not be appreciable as far as the operation of the apparatus is concerned.

Although I have described but one form of my invention, it is to be understood that other forms might be adopted, all drawn within the scope of the claims which follow.

I claim:

1. In a power operated hair extractor, a pencillike hollow handle; a sleeve rotatively mounted in said handle and extending substantially the length of the handle and protruding from one end of the latter; a shaft extending through rsaid sleeve, said shaft having bearing surfaces engageable with the inside of said sleeve adjacent the ends of said sleeve, said shaft including a head disposed adjacent the end of the sleeve protruding from said handle, a face of said head cooperating with the end edge of said sleeve for forming a hair clasp; and means for rotating said shaft and sleeve and for reciprocating the sleeve longitudinally during rotation thereof.

2. In a power operated hair extractor. a pencil-like hollow handle; a sleeve member rotatvely mounted in said handle and extending substantially the length of the handle and protruding from one end of the latter; a shaft member extending through said sleeve, said members having cooperating bearing surfaces adjacent the ends of the sleeve member, said shaft member including a head disposed adjacent the end of the sleeve member projecting from the handle, a face of said head cooperating with the end edge of said sleeve for forming a hair clasp; and means for rotating said members and for reciprocating one of said members longitudinally with respect to the other of said members.

3. In a power operated hair extractor, a

pencil-like handle; a sleeve member extending substantially the length of the handle inside thereof and protruding from one end of the handle; two frictionless bearings mounted inside said handle, said bearings being disposed adjacent opposite ends of the handle and adapted to rotatively support said sleeve; a rotatable shaft extending through said sleeve, said shaft having a head disposed adjacent the end of said sleeve projecting from the handle, a face of said head being adapted to cooperate with the end edge of the sleeve protruding from the handle for forming' a hair clasp; a pin extending transversely through said shaft and through a slot in said sleeve; a frictionless bearing comprising a fixed raceway and a rotatable raceway having rolling elements interposed therebetween, said pin being attached to said rotatable raceway; means for resiliently urging said shaft in a direction to cause said rotatable raceway to be pressed toward said xed raceway; and means for reciprocating said sleeve longitudinally as the sleeve is rotated.

4. In a power operated hair extractor, a pencil-like handle; a sleeve extending substantially the length of said handle on the inside thereof and projecting from one end of the handle; two needle bearings for supporting said sleeve in the handle for rotation and reciprocatioh longitudinally; a rotatable shaft extending through said sleeve, said shaft having a head disposed at one end adjacent to the end of the sleeve projecting from the handle, a face of said head cooperating with said end of the sleeve for forming a hair clasp; means on said sleeve forming a cam surface surrounding the sleeve, said means being movable longitudinally of said sleeve and rotatable by said sleeve; a spring interconnecting the sleeve and the said means whereby movement of said means in one direction acts through said spring for moving said sleeve longitudinally; a cam follower member carried by said handle and -engaging with said cam for causing longitudinal movement of said means; and means for interconnecting said sleeve and shaft whereby rotation of said shaft causes rotation of the sleeve.

JULIUS FIGHTER.

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