US3672419A - Hand tools - Google Patents

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Publication number
US3672419A
US3672419A US3672419DA US3672419A US 3672419 A US3672419 A US 3672419A US 3672419D A US3672419D A US 3672419DA US 3672419 A US3672419 A US 3672419A
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Prior art keywords
handle
shank
opening
openings
end
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Alvin G Fischer
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ALVIN G FISCHER
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ALVIN G FISCHER
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25GHANDLES FOR HAND IMPLEMENTS
    • B25G1/00Handle constructions

Abstract

A hand tool, and particularly a screw driver, comprising a handle and a detachable shank. The handle has intersecting longitudinal and transverse openings, and either opening receives either end of the shank. A single holding means, in the form of a spring-pressed ball detent, is contained within the handle and is cooperable with the shank end to hold the shank assembled with the handle.

Description

iinited States Patent Fischer 1 June 27, 1972 [54] HAND TOOLS 2,158,728 5 1939 Peters .279 102 2,487,696 1 1/1949 Coffing.... [721 Invent "3 Fischer 4516 Pleasant Valley 2,950,746 8/1960 Towne ..145/77 R03 "dependence, Ohm 4413 2,679,272 5/1954 Giannone ..145/76 22 i 6, 1970 2,596,594 5/1952 Petre ..279/79 1,573,464 2/1926 Topping ..l45/50 B UX [21] Appl. No.: 78,463

Primary Examiner-Andrew R, .luhasz Assistant Examiner-Michael Koczo Jr. [52] U.S.Cl. ..l45/65,8l/177D 51 161.01 ..B25g 3/06 [58] Field ofSearch ..145/61 R,6l L, C, 65,76, AB TRACT 145/77; 81/177 ST, 177 PP, 177 G, 177 D; 279/76, [57] S 79 24 A hand tool, and particularly a screw driver, comprising a handle and a detachable shank. The handle has intersecting lon- {56] References Cited gitudinal and transverse openings, and either opening receives either end of the shank. A single holding means, in the form of UNlTED STATES PATENTS a spring-pressed ball detent, is contained within the handle d' bl 'thth h k dt hldth h k Dl59,482 8/1950 Garbs ..145/ x gi 'j fgfgf g j fi e S an en 0 o e S assem 802,248 10/1905 Twardoks ..279/24 729,004 5/1903 Starrett /50 6 Claims, 6 Drawing Figures PATENTEDJUHZ'T I972 3,672,419

Z ak/W ATTOPNE) HAND TOOLS BACKGROUND AND SUMMARY Hand tools, such as screw drivers, having a shank which is detachable from a handle are well known in the prior art. Also known are constructions wherein either end of a shank may be disposed within an opening in a handle. Such prior art tools, although finding some commercial acceptance, do not provide simply yet sturdy structure which my invention makes possible, nor do they provide the utility of my improved structure.

According to my invention, the handle may be made as a metal or plastic casting or molding to eliminate expensive machining operations, and the shank may be made in accordance with standard methods. Either of the pair of openings in the handle receive a sufficient length of the shank end so that considerable force may be applied to the handle; yet the shank may be easily removed from the handle so that either of its ends may be disposed in either of the handle openings. The single spring-pressed ball detent securely holds the shank assembled with the handle in any of their variously related positions. Accordingly, it is a principal object of my invention to provide new and improved hand tools of the character described.

DESCRIPTION OF THE DRAWING In the drawing accompanying this description and forming a part of this application there is shown, for purposes of illustration, an embodiment which my invention may assume, and in this drawing:

FIG. 1 is an elevational view of a screw driver, showing the handle and shank assembled in one relation, the shank being fragmentarily shown to conserve space,

FIG. 2 is an end view of the construction shown in FIG. 1,

FIG. 3 is an elevational view of a screw driver, showing the handle and shank assembled in another relation, the shank again being fragmentarily shown, and a socket being included in the combination,

FIG. 4 is an enlarged sectional view corresponding to the line 5-5 of FIG. 3, the shank being fragmentarily shown, and

FIG. 6 is an enlarged sectional view corresponding to the line 6-6 of FIG. 1, the shank being fragmentarily shown.

DESCRIPTION OF PREFERRED EMBODIMENT My improved hand tool is herein disclosed in the form of a screw driver comprising a handle 10 and a shank or blade 11. The handle may be formed of any suitable material, such as metal or plastic. Metal is preferred in order to provide strength for withstanding the great pressure that may be applied by the tool.

The handle 10 is oblong and is preferably provided with longitudinal ribs 12 to improve gripping qualities. The handle may be made of cast metal to provide the contour shown in the drawing and to provide a pair of intersecting openings, thereby eliminating expensive machining operations.

As shown in FIG. 6, the handle 10 is provided with a longitudinal opening 14 which extends from an end 15 inwardly to a point 16 beyond the longitudinal midpoint of the handle. As shown in FIG. 4, the handle is also provided with a transverse opening 17 which extends from a side 18 inwardly to a point 19 beyond the transverse midpoint of the handle. The longitudinal and transverse openings intersect at the midpoint of the handle, to provide a balanced effect. A transverse bore 20 is formed in the handle at its midpoint and the line with the intersection of the longitudinal and transverse openings.

Either end of the blade 22 may be disposed in either of the longitudinal or transverse openings, and the cross-section of the blade is complementary to that of the openings for a close, non-rotatable fit. In the present embodiment, the blade 11 is square in cross-section, and so are the openings. One end of the blade is herein shown as provided with a wedge-like tip 25 to fit the kerf in the head of a conventional screw, while the other end of the blade is provided with a cross-like tip 26 to fit the head of a Philli s screw.

A hardened stee ball 27 is disposed within the bore 20 and is prevented from fiilly entering the intersection of the longitudinal and transverse openings 14 and 17 by an annular lip 28. The ball is pressed inwardly by a spring 29 which is disposed between the ball and a seat 30 formed by an inward deformation of the metal surrounding the outer end of the bore.

To assemble the blade, it is merely necessary to insert either end thereof into either opening and push on the blade to cam the ball 27 rearwardly. The inner ends of the longitudinal and transverse openings form stops against which inner end of the blade abut. The pressure of the ball 27 against the inner end of the blade will adequately hold the letter assembled with the handle. Because of the ribbed contour of the handle, the latter may be firmly gripped by the hand of a user. With the blade and handle assembled in the relation shown in FIG. 3, a tremendous pressure may be applied to turn the most stubbornly locked screw. The invention may also be used to turn nuts and bolts by merely assembling a socket 31 over the free end of the blade.

I claim:

1. A hand tool, comprising an oblong handle, and a shank detachably securable to said handle, said handle having longitudinal and transverse non-circular openings of equal transverse size which extend inwardly from respective transverse and longitudinal walls of said handle and intersect at a midpoint of the longitudinal axis of said handle, each opening extending beyond the point of intersection but short of penetration through an opposed wall of said handle to form a bottom for each opening, said shank comprising end portions of crosssection complementary to the non-circular transverse size of said openings to fit closely within either opening and extend beyond the point of intersection so that an extremity abuts the bottom of the opening and a part between the latter and the point of intersection is supported by the adjoining wall surface of the opening, and means within the handle at said point of intersection to engage a shank end portion in either opening and releasably hold said shank assembled with said handle.

2. The construction according to claim 1 wherein said last named means is a detent permanently carried by said handle and resiliently urged into the intersection of said openings and adapted to frictionally engage the shank portion within one of said openings.

3. The construction according to claim 2 wherein said detent is a ball which is spring-pressed to frictionally engage said shank portion.

4. The construction according to claim 1 wherein said openings are rectangular in transverse size and said handle portions are correspondingly rectangular in cross-section.

5. The construction according to claim 1 wherein said shank is a screw driver blade of uniform cross-section throughout its length and has its opposite ends of different formation for engagement with screw heads having different types of screw driver slots.

6. The construction according to claim 4 and further including a socket having one end formed with an opening rectangular in transverse size to closely receive an end of said shank, said socket at its other end having an opening to receive and rotate conventional nuts and bolt heads.

UNIT STATES PA'i'ENi Uflr'ifl-E CERTIFlfiATE OF CURECHUN Patent No. 3 672 419 Dated June 1972 InventoflZDZ Alvin Go Fischer It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 1, line 9, "simply" should be simple-" Line 40, cancel'the entire line-and insert--line 4-4 of Figure 1,

Figure 5 is an enlarged sectional View corresponding to the line 5-5 of Figure 3, the shank being fragmentarily shown, and

Line 67, '.'22"should be --11 Column 2, line 20, "letter" should he----. --latter--- Signed and sealed this Sthda of December1972i (SEAL) Attest:

EDWARD BLFLETCHER, I ROBERT GOTTSCIIALK I Attesting Officer Commissioner of Patents

Claims (6)

1. A hand tool, comprising an oblong handle, and a shank detachably securable to said handle, said handle having longitudinal and transverse non-circular openings of equal transverse size which extend inwardly from respective transverse and longitudinal walls of said handle and intersect at a midpoint of the longitudinal axis of said handle, each opening extending beyond the point of intersection but short of penetration through an opposed wall of said handle to form a bottom for each opening, said shank comprising end portions of cross-section complementary to the non-circular transverse size of said openings to fit closely within either opening and extend beyond the point of intersection so that an extremity abuts the bottom of the opening and a part between the latter and the point of intersection is supported by the adjoining wall surface of the opening, and means within the handle at said point of intersection to engage a shank end portion in either opening and releasably hold said shank assembled with said handle.
2. The construction according to claim 1 wherein said last named means is a detent permanently carried by said handle and resiliently urged into the intersection of said openings and adapted to frictionally engage the shank portion within one of said openings.
3. The construction according to claim 2 wherein said detent is a ball which is spring-pressed to frictionally engage said shank portion.
4. The construction according to claim 1 wherein said openings are rectangular in transverse size and said handle portions are correspondingly rectangular in cross-section.
5. The construction according to claim 1 wherein said shank is a screw driver blade of uniform cross-section throughout its length and has its opposite ends of different formation for engagement with screw heads having different types of screw dRiver slots.
6. The construction according to claim 4 and further including a socket having one end formed with an opening rectangular in transverse size to closely receive an end of said shank, said socket at its other end having an opening to receive and rotate conventional nuts and bolt heads.
US3672419A 1970-10-06 1970-10-06 Hand tools Expired - Lifetime US3672419A (en)

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Cited By (39)

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Publication number Priority date Publication date Assignee Title
US5193419A (en) * 1992-06-15 1993-03-16 Lee Chang Chuan Wrench with telescopic handle
US5461950A (en) * 1994-04-25 1995-10-31 Snap-On Incorporated T-shaped reversible ratchet tool
US6237228B1 (en) * 1999-07-20 2001-05-29 Andrew Moody Apparatus for adjusting tightness of a chain saw cutting element
US6378402B1 (en) 2000-02-29 2002-04-30 Black & Decker Inc. Hand tool
US20040112184A1 (en) * 2002-12-17 2004-06-17 Brian Stafford Gearcase service tool
US20040242343A1 (en) * 2002-11-08 2004-12-02 Taylor Made Golf Company, Inc. Removable weight and kit for golf club head
US20040250378A1 (en) * 2003-06-11 2004-12-16 Tontz William L. Torque magnifying handle for driving tool
US20050181884A1 (en) * 2002-11-08 2005-08-18 Taylor Made Golf Company, Inc. Golf club information system and methods
US20050209021A1 (en) * 2002-11-08 2005-09-22 Taylor Made Golf Company, Inc. Golf club head weight reinforcement
US20050221911A1 (en) * 2002-11-08 2005-10-06 Taylor Made Golf Company, Inc. Movable weights for a golf club head
US6996886B1 (en) 2002-08-09 2006-02-14 Pilling Weck Incorporated Method of making a torque tool handle
US20070000097A1 (en) * 2005-06-29 2007-01-04 Smith Robin E Multi-function tool handle
US7186190B1 (en) 2002-11-08 2007-03-06 Taylor Made Golf Company, Inc. Golf club head having movable weights
US7373860B1 (en) * 2006-07-19 2008-05-20 Rinner James A Screwdriver T-handle
US20090088269A1 (en) * 2007-09-27 2009-04-02 Taylor Made Golf Company, Inc. golf club head
US20090088271A1 (en) * 2007-09-27 2009-04-02 Taylor Made Golf Company, Inc. Golf club head
US20100042076A1 (en) * 2007-12-21 2010-02-18 Smith & Nephew, Inc. Surgical Aimer
US7744484B1 (en) 2002-11-08 2010-06-29 Taylor Made Golf Company, Inc. Movable weights for a golf club head
US7753806B2 (en) 2007-12-31 2010-07-13 Taylor Made Golf Company, Inc. Golf club
US7771291B1 (en) 2007-10-12 2010-08-10 Taylor Made Golf Company, Inc. Golf club head with vertical center of gravity adjustment
US20100284629A1 (en) * 2009-05-06 2010-11-11 University Of New Brunswick Method for rpc refinement using ground control information
JP2011507639A (en) * 2007-12-21 2011-03-10 スミス アンド ネフュー インコーポレーテッドSmith & Nephew,Inc. Surgical drilling aimer
USD667710S1 (en) 2012-03-22 2012-09-25 Karsten Manufacturing Corporation Wrench tool for sports equipment
USD668921S1 (en) 2012-03-22 2012-10-16 Karsten Manufacturing Corporation Wrench tool for sports equipment
US20120304802A1 (en) * 2010-02-13 2012-12-06 Christian Wall Rotary actuator
US8430763B2 (en) 2010-12-28 2013-04-30 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US8591353B1 (en) 2008-01-10 2013-11-26 Taylor Made Golf Company, Inc. Fairway wood golf club head
US8801541B2 (en) 2007-09-27 2014-08-12 Taylor Made Golf Company, Inc. Golf club
US8820195B2 (en) 2010-07-01 2014-09-02 Stanley Black & Decker, Inc. Bit or fastener driver
US8821312B2 (en) 2010-06-01 2014-09-02 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature with aperture
US8827831B2 (en) 2010-06-01 2014-09-09 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature
US8888607B2 (en) 2010-12-28 2014-11-18 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US9089749B2 (en) 2010-06-01 2015-07-28 Taylor Made Golf Company, Inc. Golf club head having a shielded stress reducing feature
US9168428B2 (en) 2010-06-01 2015-10-27 Taylor Made Golf Company, Inc. Hollow golf club head having sole stress reducing feature
US9220953B2 (en) 2010-12-28 2015-12-29 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US9707457B2 (en) 2010-12-28 2017-07-18 Taylor Made Golf Company, Inc. Golf club
US9861864B2 (en) 2013-11-27 2018-01-09 Taylor Made Golf Company, Inc. Golf club
US20180015605A1 (en) * 2016-07-15 2018-01-18 James Caesius Ratcheting Wrench Assembly
US9943734B2 (en) 2004-11-08 2018-04-17 Taylor Made Golf Company, Inc. Golf club

Cited By (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193419A (en) * 1992-06-15 1993-03-16 Lee Chang Chuan Wrench with telescopic handle
US5461950A (en) * 1994-04-25 1995-10-31 Snap-On Incorporated T-shaped reversible ratchet tool
US6237228B1 (en) * 1999-07-20 2001-05-29 Andrew Moody Apparatus for adjusting tightness of a chain saw cutting element
US6378402B1 (en) 2000-02-29 2002-04-30 Black & Decker Inc. Hand tool
US6996886B1 (en) 2002-08-09 2006-02-14 Pilling Weck Incorporated Method of making a torque tool handle
US9789372B2 (en) 2002-11-08 2017-10-17 Taylor Made Golf Company, Inc. Golf club head having movable weights
US7963861B2 (en) 2002-11-08 2011-06-21 Taylor Made Golf Company, Inc. Golf club head having movable weights
US7846041B2 (en) 2002-11-08 2010-12-07 Taylor Made Golf Company, Inc. Movable weights for a golf club head
US20050181884A1 (en) * 2002-11-08 2005-08-18 Taylor Made Golf Company, Inc. Golf club information system and methods
US20050209021A1 (en) * 2002-11-08 2005-09-22 Taylor Made Golf Company, Inc. Golf club head weight reinforcement
US20050221911A1 (en) * 2002-11-08 2005-10-06 Taylor Made Golf Company, Inc. Movable weights for a golf club head
US20040242343A1 (en) * 2002-11-08 2004-12-02 Taylor Made Golf Company, Inc. Removable weight and kit for golf club head
US10058749B2 (en) 2002-11-08 2018-08-28 Taylor Made Golf Company, Inc. Golf club head having movable weights
US7166040B2 (en) 2002-11-08 2007-01-23 Taylor Made Golf Company, Inc. Removable weight and kit for golf club head
US8562457B2 (en) 2002-11-08 2013-10-22 Taylor Made Golf Company, Inc. Golf club head having movable weights
US20070105647A1 (en) * 2002-11-08 2007-05-10 Taylor Made Golf Company, Inc. Golf club head having movable weights
US20070105649A1 (en) * 2002-11-08 2007-05-10 Taylor Made Golf Company, Inc. Golf club head having movable weights
US20070105651A1 (en) * 2002-11-08 2007-05-10 Taylor Made Golf Company, Inc. Golf club head having movable weights
US7744484B1 (en) 2002-11-08 2010-06-29 Taylor Made Golf Company, Inc. Movable weights for a golf club head
US20070105646A1 (en) * 2002-11-08 2007-05-10 Taylor Made Golf Company, Inc. Golf club head having movable weights
US20070105653A1 (en) * 2002-11-08 2007-05-10 Taylor Made Golf Company, Inc. Golf club head having movable weights
US20070111817A1 (en) * 2002-11-08 2007-05-17 Taylor Made Golf Company, Inc. Weight kit for golf club head
US7186190B1 (en) 2002-11-08 2007-03-06 Taylor Made Golf Company, Inc. Golf club head having movable weights
US7407447B2 (en) 2002-11-08 2008-08-05 Taylor Made Golf Company, Inc. Movable weights for a golf club head
US7419441B2 (en) 2002-11-08 2008-09-02 Taylor Made Golf Company, Inc. Golf club head weight reinforcement
US20080261717A1 (en) * 2002-11-08 2008-10-23 Taylor Made Golf Company, Inc. Golf club head weight reinforcement
US7713142B2 (en) 2002-11-08 2010-05-11 Taylor Made Golf Company, Inc. Golf club head weight reinforcement
US20080280698A1 (en) * 2002-11-08 2008-11-13 Taylor Made Golf Company, Inc. Movable weights for a golf club head
US7452285B2 (en) 2002-11-08 2008-11-18 Taylor Made Golf Company, Inc. Weight kit for golf club head
US7628707B2 (en) 2002-11-08 2009-12-08 Taylor Made Golf Company, Inc. Golf club information system and methods
US9919190B2 (en) 2002-11-08 2018-03-20 Taylor Made Gold Company, Inc. Golf club head having movable weights
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US20070105650A1 (en) * 2002-11-08 2007-05-10 Taylor Made Golf Company, Inc. Golf club head having movable weights
US7632194B2 (en) 2002-11-08 2009-12-15 Taylor Made Golf Company, Inc. Movable weights for a golf club head
US8888609B2 (en) 2002-11-08 2014-11-18 Taylor Made Golf Company, Inc. Golf club head having movable weights
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US7717805B2 (en) 2002-11-08 2010-05-18 Taylor Made Golf Company, Inc. Golf club head having movable weights
US20040112184A1 (en) * 2002-12-17 2004-06-17 Brian Stafford Gearcase service tool
US6922870B2 (en) * 2003-06-11 2005-08-02 William L. Tontz, Sr. Torque magnifying handle for driving tool
US20040250378A1 (en) * 2003-06-11 2004-12-16 Tontz William L. Torque magnifying handle for driving tool
US9675849B2 (en) 2004-02-23 2017-06-13 Taylor Made Golf Company, Inc. Golf club
US9452327B2 (en) 2004-02-23 2016-09-27 Taylor Made Golf Company, Inc. Golf club head with vertical center of gravity adjustment
US9943734B2 (en) 2004-11-08 2018-04-17 Taylor Made Golf Company, Inc. Golf club
US20070000097A1 (en) * 2005-06-29 2007-01-04 Smith Robin E Multi-function tool handle
US7571517B2 (en) 2005-06-29 2009-08-11 Irwin Industrial Tool Company Multi-function tool handle
US7373860B1 (en) * 2006-07-19 2008-05-20 Rinner James A Screwdriver T-handle
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US8753222B2 (en) 2010-12-28 2014-06-17 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US8430763B2 (en) 2010-12-28 2013-04-30 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
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