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Publication numberUS2259797 A
Publication typeGrant
Publication dateOct 21, 1941
Filing dateDec 8, 1938
Priority dateDec 8, 1938
Publication numberUS 2259797 A, US 2259797A, US-A-2259797, US2259797 A, US2259797A
InventorsCohen Maurice M
Original AssigneeCohen Maurice M
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Manicuring tool holder
US 2259797 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Oct. 21, 1941,. M M `Q01-IEN 2,259,797

MANICURING`A TOOL HOLDER Filed Dec. 8, 1938 A un f nmlmllllll IN VENTOR. MHz/mcs M 60H54/ BY C.

ATTO EY.

Patented Oct. 21, 1941 UNITED STATES PATENT OFFICE MANICURING Toor. HOLDER'.

Maurice M. Cohen, Cleveland, Ohio Application December 8, 1938, Serial No. 244,604

\ 7 Claims.

This invention relates to power operated manicuring apparatus, and more particularly to manicuring tool holders.

Power operated manicuring apparatus, adapted to actuate a number of manicuring tools is known in the art, but in using such apparatus ordinarily it is necessary to stop the motor before taking out or inserting various tools in the tool holder, in order that such operations may occur while the apparatus is at rest, due to the impossibility of performing such operations while the apparatus is in motion. The advantages of providing tool holders which will permit the ready removal from and insertion of tools into the holders while tool driving power is being supplied to the handle, are obvious, when the necessity of successively using various manicuring tools essential to manicuring operations is considered.

Therefore, an object of my invention is to provide an improved tool handle for power operated manicuring apparatus, which permits the vari- 'ous tools to be quickly and easily detached from, or inserted into the handle while tool driving power is being supplied to the handle.

Another object is to provide in a tool supporting handle for power actuated manicuring apparatus, improved means for operating the handie in the manner of a chuck to engage and disengage a tool.

Another object is to provide an improved chuck means, adapted to be used in cooperating with a handle for operatively engaging and disengaging manicuring tools.

Another object is to provide new and improved power driven manicuring tools and associated Parts.

Other objects and advantages of the invention will appear during the course of the following description:

In the drawing forming a part of this specification:

Fig. 1 is an elevational view of manicuring device with buffer installed,

Fig. 2 is an enlarged sectional view of driving member,

Fig. 3 is an end view of Fig. 2 from the right end thereof,

Fig. 4 is an enlarged sectional view showing both the driving member andbuing member just ready to snap in place, connecting the two members together,

Fig. 5 is a vertical sectional View taken on the line 5-5 of Fig. 4,

Fig. 6 is an enlarged sectional view of both members in place and as one unit taken on line 6-6 of Fig. l, with parts in elevation,

Fig. 7 is a vertical sectional view taken on line 'I--l of Fig. 6,

Fig. 8 is an enlarged sectional view of filing member,

Fig. 9 is an enlarged sectional View of brush member,

Fig.'10 is an end view of Fig. 8, looking toward filing member,

Fig. 11 is an enlarged sectional view of pusher member, l

Fig. 12 is a vertical sectional view taken on line I2-I2 of Fig. 1l, while,

Fig. 13 is an elevational view of another typey of orange stick.

In the drawing the numeral I4 refers to a cable of suitable size and construction, and in the illustrated embodiment comprises a close- Wound helical spring, commonly referred to as Bowden wire, suitably operatively secured at one end to an electric driving motor, not illustrated herein, as such is well known in the art. Preferably the motor, however, should have al speed not to exceed 1600 revolutions per minute, in order that the manicuring tools will not heat suiiiciently to burn the fingers. The cable I4 preferably should be secured to the motor in a manner permitting a sliding action, in order that the cable I4 may be freely operable in various operating positions.

The other end of the cable I 4 is secured to a small tubular coupling I5 in any suitable manner such as a press fit, or by any means securely fastening it therein. The coupling, I5 is rotatably mounted in an outer coupling I6 threaded inberiorly at its large end at I6a, where it screwthreadedly engages the forward end of a sleeve I1 having the end of a cable covering I8, of any suitable construction, mounted thereon, while the small end of the small or forward end of the coupling I6 is threaded exteriorly at ISb, where it screwthreadedly engages the inner rear end of a housing or handpiece I9, shouldered at 20, provided with a longitudinal bore 2| and a counter bore 22 terminating at a shoulder 23.

A cylindrical sleeve 24 xedly mounted within the hand piece counter bore 22, and having its inner bore aligned with the hand piece bore 2|, has its forward end mounted against the shoulder 23, while its opposite end bears against a thrust spacer 25. A spindle 24a rotatably mounted within the sleeve 24, disposed in the hand piece counter bore 22, is tted against the thrust spacer 25 at its rear end for protecting it against end play,*while extending rearwardly from the spindle 24a is a reduced threaded portion 26, screwthreadedly engaged by cooperating threads 21 provided in a bore in the forward end of the coupling I5. The spindle 24a is partially cut away at its forward end where it is provided interiorly with a flat outwardly sloping surface 28 having a clutch spring 29 preferably formed of suitable spring steel. and secured thereto in any suitable manner, as for example by a rivet 38. 'I'he spring 29 hasy a fiat outwardly sloping surface 3| terminating at its outer end in a curved portion 32 arched away from the sloping surface 28. The construction and arrangement of the aforesaid parts are such that rotation of the cable I4, as previously described, through the medium of the coupling I5, rotates the spindle 24a in the counter bore 22 of the handpiece I9.

The parts thus far described constitute the driving mechanism and a part of lthe clutch mechanism, adapted to operate various manicuring tools hereinafter described. l A

A buffer tool indicated generally by the numeral 33 is shown in Figs. 1, 4, 5, 6 and '1, and comprises a tubular sleeve 34 adapted to slide longitudinally over the front end of the handpiece I9 and be retained there when the buffer tool 33 is in operating position. A buffer guard 35, mounted in the forward end of the sleeve 34, receives at its front end a buffer tool 36, formed of suitable material, such as felt or the like and adapted to polish nger nails in a well known manner. The buffer guard 35 is threaded interiorly to engage and retain the buffer tool 39, this construction permitting the buffer tool 35 to be quickly and easily removed therefrom.

An elongated tool shank 31 is mounted in the rear end of the buffer guard 35 and retained therein in any suitable manner, as by a pressed t and extends rearwardly therefrom. The rear end of the tool shank 31 has a right angle cut.

away portion at the point indicated by the numeral 38 adjoining a concave portion 39, while the rear end terminates in an outwardly curved portion 40. As illustrated in Fig. 6, the concave circular portion 39 of the tool shank 31 is of a configuration corresponding to the arched portion 32 of the clutch spring 29 in order that the two parts may be locked in operative relation.

In order to keep the buffer guard 35 and the tool shank 31 aligned in the sleeve 34 and prevent end play of these parts, a new and novel method of construction is Provided, wherein the buffer guard 35 is provided with a circumferential groove 4I into which is pressed or rolled a strip of the overlying portion of the sleeve 34, providing a curved portion thereof 42 seated in the circumferential groove 4I. This formation of the parts may be quickly and easily accomplished by a rolling operation well known in the art.

As shown in Fig. 6 the buffer tool 33 is inserted into the handpiece I9 until the cut-away portion 38 at the rear of the tool shank 31 rests against the forward end of the handpiece I9 at which point the curved end 32 of the clutch spring 29 is engaged by the concave circular portion 39 of the tool shank 31 and the parts thus described are in operative relation.

Due to the particular construction and arrangement of the clutch spring 29 and the tool shank 31, the interlocking of and disengaging of these parts may be accompllshedduring the continuous rotation of the clutch spring 29. 'I'his feature presents a material saving of time by permitting the operator to quickly andeasily insert and detach, in rapid succession, a wide selective choice of tools as successive manicuring operations are performed, without 'shutting off the driving motor actuating the clutch spring 29. The clutch spring 29 and associated parts are also adapted to actuate a rotary Ille, referred to generally by the numeral 43, and illustrated ln Fig. 8, comprising a file tool sleeve 44, having a disc guard 45 provided with a rearwardly projecting shank 49 secured within the front end of the sleeve 44 in any suitable manner, as by a pressed fit. The front surface of the disc guard 45 is of flat circular shape, and is indicated by the numeral 41, and is provided with a forwardly projecting peripherial flange 48.

A disc driver 49 havlnga flat circular front surface 59, is provided with a rearwardly extending portion 5I, having the forward end of the tool shank 31a securedthereto by a pressed nt, or by any suitable means. A strip of the sleeve 44 indicated by the numeral 52 is rolled inwardly providing -an inwardly extending flange for preventing end play of the disc driver 49 and the tool shank 31a. Locking arms 53 projecting forwardly from the circular surface 59 of the disc driver 49, through the cooperation of slots 54 provided in a. circular piece of abrasive material such as emery paper 55, form a bayonerl locking means for releasably locking the emery paper 55 therein in a well known manner.

The construction and arrangement of the rotary lle 43 and associated parts are such that the file 43 is adapted to be inserted over the forward end of the handpiece I9 and locked thereto in driving relation, in the same manner as the buner tool 33 is operated, the emery paper 55 being rotated in an obvious manner.

A brush tool, indicated generally by the numeral 55 illustrated in Fig. 9, comprises a brush sleeve '51 having a brush guard 58 rotatably mounted in the front end thereof, while the forward end of a. tool shank 31h is suitably mounted in the rear end of the brush guard 58 by a pressed t. The outer surface of the brush guard 58, near the rear end thereof, is provided with a circumferential groove 59 receiving an inwardly rolled portion 60 of the sleeve 51, thereby providing means for preventing end play of the brush guard 58 and tool shank 31h.

A brush tool 5I having bristles 52, a back 53 from 'which projects a brush shank 54, is screwthreadedly retained in the forward end of the tool shank 31h. Obviously brush tool 55 is operated in a rotary manner through the cooperation of the tool shank 31h driven by the driving mechanism previously described.

A cuticle pusher tool, indicated generally by thenumeral 55 and illustrated in Figs. 11, 12 and 13 comprises a sleeve 55 having a pusher guide 61 screwthreadedly retained within the front end of the housing 65, while a cuticle pusher tool 58 having a ridged forward portion 59 and a circular shank portion 18, is screwthreadedly retained within a bore 1I in a cam follower 12 reciprocably mounted in the pusher guide 51.

The rear end of the cam follower 12 is disposed diagonally to the axis of the sleeve 55 as indicated by the numeral 13. A coil spring 14 is positioned around the cam follower 12 and is retained in position between a collar 15 on the follower 12 and a collar 15 on the pusher guide guide 19, bored centrally and receiving a tool shank 31e having a cam 8B xedly mounted on its forward end, by a pressed fit. A thrust spacer 8| is positioned between the rear end of the cam 80 and the guide 19 to prevent end play of the cam 80.

'Ihe cuticle pusher 68 may be formed of metal,

. if desired, as shown in Fig. ll, or it may be formed of any other suitable material, such as orange wood, as shown in Fig. 13, wherein the f inner end of the tool 88 is provided with threads adapted to engage the threads in the bore in the cam follower 12. Bakelite, plastic or other suitable material may also be used for the tool 6I. Rotation of the tool shank 31e after it is placed in driving relation tothe clutch spring 29, as`

previously explained, causes rotation of the cam 80 mounted on the forward end thereof. The

Y coil spring 14 urges the end 13 of the cam follower 12 against the forward end of the cam 80. The rotating movement of the cam 8,0 is converted Ito reciprocable movement by the cooperation of the follower 12, and the cam 80, resulting in the outwardly pushing of the follower 12 while the coilspring 1I serves to return the follower to its normal position. o

The invention, herein disclosed, is not limited to uses in connection with manicuring apparatus as it is adapted to be used for various types of tools and applicators.

It will be apparent to those skilled in the art that the invention herein described may be variously changed, used or-modifled, without departing from the spirit of the invention, or sacrificing the advantages thereof, and that the present ernbodiment of my invention is illustrative only, and that my invention is not'limited thereto.

1. In a manicuring tool, an elongated handpiece, a spindle positioned inwardly of the handle, and adapted to be rotated on its longitudinal axis therein, said spindle having an elongated sloping surface at its outer end, a clutch spring, secured to said sloping surface and formed at its outer end to provide a tool shank engaging means, an elongated sleeve, adapted to telescopically engage the outer end of said handpiece, a tool shank rotatively secured within said sleeve, said shank being free and unsecured throughout the greater part of its length and being provided at its inner end with a portion mating with said clutch spring on the spindle and adapted to be seated and retained thereby when the sleeve telescopically engages the handpiece, the position and arrangement of the tool shank and the shank engagingA means being4 such as to permit considerable transverse play of the inner end of the tool shank in order to facilitate its engagement with the shank engaging means, while the latter is in continuous operation.

2. In a manicuring tool holder, an elongated tubular hand piece, a rotatively mounted spindle positioned inwardly of the outward end of the hand piece, said spindle having a part of its forward end cut away, providing an elongated nat sloping surface, means for rotating said spindle, and a clutch means secured to said sloping surface, the same being positioned and arranged at its outer end to provide a tool shank engaging means adapted to be engaged by a cooperating shank of a manicuring tool, the position and arrangement of the parts being such that a tool shank may be attached to and detached from said clutch means during the continuous rotation thereof, thereby permitting theready vexchange of manicuring tools.

3. In a manicuring tool holder, an elongated tubular hand piece. a rotatively mounted spindle positioned inwardly of the outward end of the hand piece, said spindle having a part of its forward end cut away. Providing an elongated flat sloping surface,means for rotating said spindle,v

and a -clutch spring secured to said sloping surface. the same being positioned and arranged at its outer end to provide a tool shank engaging means adapted to be engaged by a cooperating shank of a lmanicuring tool, the position and arrangement ofthe parts being such that a tool shankmay be attached to and detached from said clutch spring during the continuous rotation thereof, thereby permitting the ready exchange of manicuring tools.

4. In a manicuring tool holder, an elongated tubular hand piece, a rotatively mounted spindle positioned inwardly of the outward end of the hand piece, means for preventing axial shifting of the spindle in the handpiece, said spindle having a part of its forward end cut away, providing an elongated fiat sloping surface, means for rotating said spindle. and a clutch spring secured to said sloping surface', the same being positioned and arranged at its outer l end to provide a tool shank engaging means adapted to be engaged by a cooperating shank of a manicuring tool, the position and arrangement of the parts being such that a tool shank may be attached to and detached from said clutch spring during the continuous rotation thereof, thereby permitting the ready exchange of manicuring tools.

5. In a manicuring tool holder, an elongated tubular hand piece, a rotatively mountedspindle positioned inwardlyof the outward end of the. khand piece, said spindle having a part of its .forward end cut away, providing an elongated fiat sloping surface crossing the axis of said l spindle, means for rotating said spindle, and a clutchspring secured to said sloping surface, the same being positioned and arranged at its outer end to provide a tool shank engaging means adapted to be engaged by a cooperating shank of a manicuring-tool, the position and arrangement of the parts being such that a tool shank may be attached to and detached from said clutch spring during the continuous rotation thereof, thereby permitting the ready exchange of manicuring tools. v

6. In manicuring apparatus, the combination of an elongated tubular hand piece, a rotatively mounted spindle positioned inwardly of the outer end of the hand piece, said spindle having a part of its forward end cut away, providing an elongated flat sloping surface, a clutch spring secured to said sloping surface and having an arched portion near. its outer end thereof, a manicuring tool having a tool shank rotatively mounted in a sleeve adapted to be slid over the forward end of said hand piece, the outer end of said tool shank having a curved formation adapted to engage and be seated on said arched portion of said clutch spring, thereby providing a means for operatively locking said tool shank on said spindle during the continuous operation `of the spindle, for the purposes described.

7. vIn manicuring apparatus, the combination of an elongated tubular hand piece, a rotatively mounted spindle positioned inwardly of the outer end of the hand piece, said spindle having a part oi its forward end cut away, providing an elongated fiat sloping surface, a clutch spring secured to said sloping surface and having an arched portion near its outer end thereof, a manicuring tool, a tool shank operatively secured to said tool and rotatively mounted in' a sleeve adapted to be slid over the forward end of said hand piece, means for preventing axial shifting of the shank in its sleeve, the outer end of said tool shank having a curved formation adapted to engage and be seated on said arched portion of said clutch spring. thereby providing a means for operatively locking said tool shank on said spindle during the continuous operation of the spindle. for the purposesvdescribed.

MAURICE M. COHEN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2518279 *Jun 30, 1947Aug 8, 1950Bruder Albert FDrive connection for a shoe polisher
US2537122 *Jul 23, 1948Jan 9, 1951Houdaille Hershey CorpSafety coupling for shafts
US2544219 *Jun 9, 1945Mar 6, 1951Cohen Maurice MPower-operated tool driving apparatus
US2582873 *Apr 28, 1947Jan 15, 1952Independent Pneumatic Tool CoFlexible spindle for rotary power tools
US2735704 *Sep 5, 1951Feb 21, 1956 Joint for rock drills
US3902279 *May 10, 1974Sep 2, 1975Lookadoo Weldon RDenture polisher with manually operable drive
US4161061 *Jun 17, 1977Jul 17, 1979Dracon IndustriesTermination tool blade and slide apparatus
US4234201 *Jan 29, 1979Nov 18, 1980Irvin SorensenChuck for miniature rotary tool
US5289604 *Sep 5, 1990Mar 1, 1994Braun AktiengesellschaftElectric toothbrush with demountable brush section
US5788400 *May 27, 1997Aug 4, 1998The Torrington CompanyQuick connecting bayonet style linkage
US6799346Jan 4, 2002Oct 5, 2004Atico International Usa, Inc.Toothbrush with oppositely reciprocating brush heads
US8256055Jun 20, 2008Sep 4, 2012Braun GmbhToothbrush
US20030126700 *Jan 4, 2002Jul 10, 2003Johnny JengToothbrush with oppositely reciprocating brush heads
US20100162501 *Jun 20, 2008Jul 1, 2010Gerhard KressnerToothbrush
US20100170051 *Jun 20, 2008Jul 8, 2010Gerhard KressnerToothbrush
EP0894451A1 *Jun 25, 1998Feb 3, 1999Kutzner + Weber GmbH & Co. KGRotatable apparatus for personal body care
Classifications
U.S. Classification132/75.8, 403/329, 433/127, 279/79, 464/53, 15/28, 132/73.6
International ClassificationA45D29/00, A45D29/14
Cooperative ClassificationA45D29/14
European ClassificationA45D29/14