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Publication numberUS2158728 A
Publication typeGrant
Publication dateMay 16, 1939
Filing dateOct 6, 1938
Priority dateOct 6, 1938
Publication numberUS 2158728 A, US 2158728A, US-A-2158728, US2158728 A, US2158728A
InventorsFrederick W Peters
Original AssigneeFrederick W Peters
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tool handle
US 2158728 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

May 16, 1939. w PETERS 2,158,728

TOOL HANDLE Filed Oct. 6, 1958 v 9 5 I I! II ose /0/ 1 I INVENTOR,

PredericK W Peters 3 I BY dMMv QWM.


Patented May 16, 1939 UNITED STATES PATENT OFFICE TOOL HANDLE This inventionrelates to tools, and more particularly to the means for removably securing the shanks of tool implements within the handles therefor. It has for its general object to provide means whereby the implements may be secured firmly within their respective handles while enabling the former to be readily and conveniently removed.

Further and more limited objects of the invention will be set forth in the detailed description which follows and in connection with the drawing forming part hereof, wherein Fig. 1 represents a side elevation of a tool comprising a handle constructed in accordance with my invention; Fig. 2 a central longitudinal section through the handle, the implement being shown in elevation; Fig. 3 a sectional detail in perspective through the handle and the parts associated therewith for securing the shank of the implement in position; Fig. 4 a detail in perspective of thesleeve forming part'of theimplement-retaining means; Fig. 5 a detail in perspective of the spring forming part of the implement-retaining means; Fig.6 a detail insection'taken on u the line\66 of Fig. 1; and Fig. 7 a detail in mer preferably being of a size to cooperate with perspective of an implement employed with the handle.

Describing the parts by reference characters.

I denotes the shank portiqn of a tool implement,

such as a screwdriver, the said shank being pro-.

vided with wedge-shaped ends'2 and 3, the forscrews. varying in size from No. 5 to No. 8 and thelatter being of a size adapted to operate upon screws varying in size from No. 8 to N0. 16. It

will be noted that the shaft is angular in section, preferably square.

4 denotes the handle; which is provided with a bore 5 for the reception of a portion of the shank and either end of the implement l. The bore is also shown as square in cross section and is of sufficiently larger cross sectional area than the cross sectional area of the shank l'to enable it to receive within the .front portion thereof a sleeve 6, preferably of metal, the bottom and I sides of the sleeve fitting snugly against the bottom and sides of the bore and the rear portion of the top of the sleeve fitting snugly against the corresponding portion of the upper wall of the bore. The upper wall 6 of the sleeve is provided with a slot 1 of less width than the said wall, the front and rear walls defining the said slot being beveled upwardly, as shown at l and 1 The front wall ,I is shown as located adjacent to the front of the sleeve and the front end of thehandle. The front portion of the upper wall of the bore comprises theslde portions 6* which constitute continuations of the rear portion of said wall and a wall 6 located above the side portions 6 and connected therewith by short vertical walls 6, the construction providing a recess -8 extending rearwardly from the front of the handle bore above the upper wall of the sleeve and beyond the rear end of the slot and being preferably of substantially the same width as the slot.

9 denotes a metal block which extends across the rear end of the bore 5 and which forms a solid abutment for the end of the implement I within said bore.

Cooperating with the slot! and with the inclined walls 1* and l and with the upper wall 6' of the recess 8 is a slidable locking member indicated generally at 10. This locking member is preferably in the form of a spring made of fiat stock and having an intermediate depressed flat body portion l of less'length than the length of the, slot 1 and upwardly bowed ends I0 and m connected with said depressed body portion by inclined portions Ill and I0", respectively. The sleeve may be retained in place within the bore by being press-fitted within the said bore.

With the parts assembled as shown in Fig. 3 and prior to the insertion of the shank of the implement within the handle, the central portion I 0' of the spring will project slightly below the slot 1, with a small clearance between the tops of the bowed ends l and 1 and the upper wall of the recess 8. However, when the shank of the implement l is inserted into the sleeve, the corner I0 between the front bow and the body Ill of the spring will, as the shank is pushed rearwardy into the sleeve, be engaged by the shank and, due to such frictional engagement, the spring will be moved bodily rearwardly until such time as the top of the rear bow Ill will be wedged into locking engagement with the upper wall of the recess 8, through the action of the inclined surface Ill upon the inclined wall I which will press the corner I0 between the body Ill and the rear bow into firm frictional engagement with the top of the shank. The frictional grip exerted by the spring upon the shank of the imthe handle, it being noted that; as the implement is pulled outwardly or forwardly, the spring will be moved forwardly until the bow lll at the front of the spring is tightly wedged against the upper wall of the recess 8 through the action of the inclined wall I upon the inclined surface [0 .of the spring.

The sliding movement of the spring within the slot 1 is facilitated by the use, in the construction of the handle, of material having a smaller coeflicient of friction than that which exists between the'spring and the shank of the tool. The material which I prefer to use for the handle is what is known to the trade as acetate material, being similar in appearance to Celluloid but without the inflammability and liability to explosion of the latter material.

I have found that the action of the spring is facilitated by making the angular upward deflection of the walls l0 and HF and the angular downward deflection of the extreme ends of the bowed portionsof the spring not materially greater than 5 with respect to a plane extending through and constituting an extension of the middle portion Ill of the spring. In actual constructions which I have built, very satisfactory results have been obtained wherein the slot 1 was 3' 5" wide and 7 long, wherein the spring was wide, with the central portion thereof long, and with the bowed ends each long; and also wherein the recess 8 was slightly in excess of in width and deep.

The sleeve 6 not only cooperates in looking implements in place within the handle, but also strengthens the handle at the place where its cross section is usually diminished and where the strain incidental to the use of the implements is greatest.

For convenience of description the wall of the bore which is provided with the recess 8 has been referred to hereinbefore and will be referred to in the claim as the top or upper wall and the wall of the sleeve which is provided with the slot 1 will also be referred to as the top or upper wall of said sleeve.

Having thus described my invention, what I claim is:

A tool comprising an implement having a shank and a handle, the said handle having a bore provided with a recess extending longitudinally thereof, a sleeve fitted within the said bore, the said sleeve being provided with a slot extending longitudinally thereof and in register with said recess, the walls defining the ends of the said slot being beveled rearwardly and forwardly toward the outer wall of the said recess, and a spring having a central body portion located within the slot and being of less length than the length of the said slot, said spring having bowed end portions extending from the body portion thereof the extreme ends of which end portions are adapted to ride upon the sleeve in front and at the rear of the said slot, respectively and adapted to be forced into engagement with the wall of the recess in register with the said slot by the action of the inclined walls at the front and rear ends of the said slot upon the corresponding inclined portions of the bowed ends of said spring.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2475608 *Aug 3, 1944Jul 12, 1949Anton GasparichFile handle
US2476762 *Feb 9, 1946Jul 19, 1949Park Metalware Company IncChuck
US2515839 *Sep 20, 1944Jul 18, 1950Robertson Peter LScrew driver
US2522388 *Mar 26, 1949Sep 12, 1950Gunnar MadsenDetachable handle screw driver
US2534027 *Jan 14, 1949Dec 12, 1950Orchard Ind IncFishing rod handle
US2551117 *Nov 25, 1946May 1, 1951William Gortner JohnFit-all bushing
US2596594 *Oct 11, 1950May 13, 1952Park Metalware Company IncChuck feature of tools of the detachably connected shank and handle type
US2625360 *Jul 31, 1948Jan 13, 1953Gen ElectricArticle retaining clamp
US2641478 *Oct 18, 1947Jun 9, 1953Sigg Joseph AScrew driver
US2655963 *Mar 18, 1950Oct 20, 1953Bostitch IncFinger grip for handles of tools
US2866648 *Oct 25, 1955Dec 30, 1958Hardinge Brothers IncSprings for feed chucks
US2925982 *Nov 8, 1957Feb 23, 1960John C Virden CompanyChannel biased ballast holddown
US3270368 *Oct 7, 1964Sep 6, 1966Julian B RozierFish scaling device
US3329452 *Dec 31, 1964Jul 4, 1967Gen ElectricCoupling means for attaching a knob to a shaft
US3455355 *Nov 13, 1967Jul 15, 1969Vaco Products CoReversible bit handtool
US4644831 *Jul 5, 1985Feb 24, 1987Miriam YangAdaptor sleeve
US4782555 *Jul 22, 1987Nov 8, 1988Heinrich Baumgarten Kg, Spezialfabrik Fuer BeschlagteileUtensil handle for fastening on bolts
US4983080 *Sep 19, 1989Jan 8, 1991Black & Decker, Inc.Push-button controlled apparatus for releasably storing a tool bit
US5335409 *Jun 18, 1993Aug 9, 1994Enderes Tool Co., Inc.Screwdriver including a handle with an O-ring therein for retaining a removable bit and method of assembly therefor
US5643089 *Oct 19, 1995Jul 1, 1997Scott R. HummelNon-jarring torque wrench with removable output shaft
US5881614 *Dec 9, 1996Mar 16, 1999Millers Falls Tool CompanyTool with reversible bit and method of assembly
US6148696 *Jun 1, 1999Nov 21, 2000Chiang; Shu ChiRatchet screw driver
US6533291Feb 14, 2001Mar 18, 2003Power Tool Holders IncorporatedChuck having quick change mechanism
US6688610May 10, 2001Feb 10, 2004Power Tool Holders IncorporatedChuck with quick change
US6722668Feb 4, 2003Apr 20, 2004Power Tool Holders IncorporatedChuck having quick change mechanism
US6820523Jan 9, 2004Nov 23, 2004Chia Yu ChenTool having detachable handle
US6834864Oct 16, 2002Dec 28, 2004Power Tool Holders IncorporatedChuck having quick change mechanism
US7040630Mar 31, 2003May 9, 2006Jacobs Chuck Manufacturing CompanyChuck with quick change
US7159319 *Jun 11, 2004Jan 9, 2007Wu Sheng HuangTube cutter having retractable tool device
US7160065Mar 17, 2006Jan 9, 2007Jacobs Chuck Manufacturing CompanyChuck with quick change
US7185569 *Dec 15, 2004Mar 6, 2007Leatherman Tool Group, Inc.Multipurpose folding tool with tool bit holder and blade lock
US7353736Jul 27, 2005Apr 8, 2008Leatherman Tool Group, Inc.Enhanced multi-function hand tool
US7634956Feb 5, 2007Dec 22, 2009Leatherman Tool Group, Inc.Multipurpose folding tool with tool bit holder and blade lock
US7921752Apr 12, 2011Leatherman Tool Group, Inc.Enhanced multi-function hand tool
US20030075880 *Oct 16, 2002Apr 24, 2003Girardeau Samuel G.Chuck having quick change mechanism
US20050150334 *Dec 15, 2004Jul 14, 2005Knight Nathan E.Multipurpose folding tool with tool bit holder and blade lock
US20050274023 *Jun 11, 2004Dec 15, 2005Huang Wu STube cutter having retractable tool device
US20060175769 *Mar 17, 2006Aug 10, 2006Jacobs Chuck Manufacturing CompanyChuck with quick change
US20110146464 *Jun 23, 2011Hung-Ming HuClamping member for portable and replaceable bit assembly
U.S. Classification279/102, 279/24, D08/83, 81/439, 16/DIG.240
International ClassificationB25G1/00
Cooperative ClassificationB25G1/00, Y10S16/24
European ClassificationB25G1/00