Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3306639 A
Publication typeGrant
Publication dateFeb 28, 1967
Filing dateOct 2, 1964
Priority dateOct 2, 1964
Publication numberUS 3306639 A, US 3306639A, US-A-3306639, US3306639 A, US3306639A
InventorsLyon Chester S
Original AssigneeLyon Chester S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Extensible torque rod
US 3306639 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Feb. 28, 1%? c. s. LYON EXTENSIBLE TORQUE ROD Filed Oct. 2, 1964 m U S R E T S F. H C

United States Patent 3,306,639 7 V EXTENSIBLE TORQUE Roi) Chester S. Lyon, 1108 Leadville, Boise, Idaho 83706 Filed Oct. 2, 1964, Ser. No. 401,040 3 Claims. Cl. 287-58) This invention relates to extensible torque rods of the type used for driving socket wrenches and the like devices. It is an improvement over my prior Patent No. 2,893,765, of July 7, 1959, entitled, Extensible Torque Rod.

The primary object of this invention is to provide an extensible torque rod of extremely rugged characteristics comprising a pair of telescoping members Which can be adjusted to any one of a number of selected over-all lengths and locked in adjusted position.

More particularly, it is intended now to provide a hexagonal rod telescopingly engaging in a tube having a hexagonal interior whereby relative rotation of the rod and tube is prevented. The rod is to be provided along one flat face with a series of transverse grooves, and around the periphery of the tube, which is preferably round, there is to be a longitudinally slidable sleeve carrying a spring-pressed roller which engages through a sleeve aperture into one of the transverse notches in the rod, in order to lock the rod and tube together. When it is desired to unlock the rod and tube so that they may be longitudinally adjusted, the sleeve is moved longitudinally along the tube so as to free the roller from its engagement with the rod notch. The improvement over the device disclosed in my prior patent resides in increased strength and durability, and in manufacturing advantages.

These and other objects will be apparent from the following specification and drawing, in which:

FIG. 1 is a plan view of my extensible torque rod;

FIG. 2 is an exploded view showing the parts in perspective;

FIG. 3 is a longitudinal cross section along the line 3-3 of FIG. 1 showing the sleeve and roller in locking position;

FIG. 4 is a transverse corss section along the line 4--4 of FIG. 3; and

FIG. 5 is a longitudinal cross section similar to FIG. 3, but showing the sleeve and roller in unlocking position.

Referring now to the drawing in which like reference numerals denote similar elements, the extensible torque rod 2 consists of a tube 4 in which telescopically engages a hex rod 6. Tube 4 has on its free end a non-round surface 8 adapted to be driven by a wrench or similar driving element and hex rod 6 has on its free end a spring biased ball 10 and a non-round driving surface 12 for receiving a socket or like device adapted to be driven by a torque rod 2. Hex rod 6 has a series of transverse grooves 14 spaced along one flat face16 thereof and a tube 4 has a hexagonal interior 18 which closely surrounds hex rod 6 so as to prevent relative rotation between tube 4 and rod 6.

Longitudinally slidable around the exterior of tube 4 is a knurled sleeve 20 whose lengthwise movements are limited by split rings 22 and 24 engaging in annular grooves 26 in the surface of tube 4. Sleeve 20 has a diamond-shape opening 28 through which engages a W- shape bend 30 of a spring strip 32 whose ends 34 fit through and are held by raised straps 36 on sleeve 20. Engaged beneath the central portion of W-shape bend 30 is a roller 38 slightly shorter in length than the transverse width of diamond-shape opening 28 which, in locking position, fits through an aperture 40 in tube 4 and engages a select one of notches 14 in hex rod 6. Part of the material at the outer surface of tube 4 is cut away to provide a ledge 42 for purposes described hereinbelow,

In operation, when it is desired to adjust the length of torque rod 2, sleeve 20 is slid lengthwise to its FIG. 5 position, thereby Withdrawing roller 38 from the transverse notch 14 on hex rod 6 in which it had previously been engaged and, instead, lodging roller 38 on ledge 42 on the exterior of sleeve 4. In the FIG. 5 position of the parts, hex rod 6 is free to slide in tube 4 to the desired lengthwise position. When it is desired to lock tube 4 and hex rod 6 in lengthwise adjusted position, sleeve 20 is slid forwardly along rod 4 to its position in FIGS. 3 and 4, whereupon roller 38 snaps into one of transverse grooves 14. It will be noted that ring 24 limits the sliding of sleeve 20 in one direction beyond the position in which roller 38 engages through aperture 40, and ring 22 limits the sliding of sleeve 20 in the other direction beyond the position in which roller 38 lies at the end of ledge 42. In event one of transverse grooves 14 does not happen to be immediately below aperture 40 at the time sleeve 20 is slid forwardly to its locking position, rod 6 and tube 4 are telescoped in one direction or the other until a transverse groove 14 comes beneath roller 38, whereupon roller 38 steps into the transverse groove.

The invention is not limited to the details of the structure described and shown herein, but is intended to cover all substitutions, modifications and equivalents within the scope of the following claims.

I claim:

1. An extensible torque rod comprising: a rod member of polygonal cross-section having a series of longitudinally-spaced transverse grooves along one flat face thereof, a tube member having an interior of polygonal cross-section complementary with the rod member and telescopically engaging thereover in non-rotative rela tionship therewith, said members having surfaces on free ends thereof adapted respectively to engage driving and driven tools, said tube member having an aperture therethrough and having the material adjacent a side of said aperture which is disposed towards one end of said tube cut-away whereby to provide a ledge, a longitudinally slidable sleeve disposed around said tube in the region of said aperture, said sleeve having an opening therethrough and being longitudinally slidable on said tube between two positions, in the first of which positions said opening overlies said aperture and in the second of said positions said opening overlies said ledge, a spring strip having its length disposed axially on the exterior of said sleeve, means securing the ends of said spring strip to said sleeve, said strip having a substantially W-shape bend intermediate the ends thereof extending downwardly through the opening in said sleeve, and a roller engaged beneath said bend, said roller being biased by said spring strip to snap into one of the transverse grooves in the rod when said sleeve is in said first position and to ride up upon said ledge when said sleeve is moved to said second position.

2. The combination claimed in claim 1, and means on said tube member for limiting the longitudinal sliding movement of said sleeve thereon between said first and second positions.

3. The combination claimed in claim 1, said opening being substantially diamond-shaped and being slightly longer in the circumferential direction of the sleeve than the length of the roller.

References Cited by the Examiner UNITED STATES PATENTS 2,893,765 7/1959 Lyon 287-58 2,963,930 12/1960 Clothier et al. 81-177 CARL W. TOMLIN, Primary Examiner.

THOMAS F. CALLAGHAN, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2893765 *Aug 18, 1955Jul 7, 1959Lyon Chester SExtensible torque rod
US2963930 *Dec 1, 1958Dec 13, 1960Future Tool CoExtensible torque bar
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3603628 *Jul 7, 1969Sep 7, 1971Smith Edward AFrame connector structure
US3832916 *Jan 24, 1973Sep 3, 1974Atlas Copco AbImpact wrench
US4102375 *Jan 31, 1977Jul 25, 1978Rossini James LVariable-length tool holder
US4317393 *Aug 25, 1980Mar 2, 1982Kenneth GraffamExtensible torque bar
US4367663 *Mar 30, 1981Jan 11, 1983Merics Joseph SVariable length torque rod
US4376397 *Feb 13, 1981Mar 15, 1983Newby Robert AApparatus for variably spacing a driving tool and a driven tool
US4440517 *Mar 23, 1981Apr 3, 1984Potter Michael AAdjustable torque-multiplier breaker-bar
US4495834 *Feb 22, 1982Jan 29, 1985Clark Equipment CompanyAdjustable steering column
US4503728 *Sep 29, 1982Mar 12, 1985Robert Bosch GmbhStop device
US4586406 *Sep 20, 1984May 6, 1986Howard Willis HExtensible wrench construction
US4589308 *Mar 4, 1985May 20, 1986Bernhard PalmSocket wrench extension
US5109737 *Jun 17, 1991May 5, 1992Raber Scott MExtended tool
US5361655 *Aug 30, 1993Nov 8, 1994Fowlkes Alex SExtensible torque rod
US5513873 *Oct 18, 1994May 7, 1996Chen; Shou-MaoAdjustable handle assembly for push cart
US5729865 *Mar 7, 1996Mar 24, 1998Bestt Rollr, Inc.Lock for telescoping extension poles
US5836564 *May 23, 1996Nov 17, 1998Avibank Mfg., IncFail safe hold open telescoping rod
US5839326 *Jun 7, 1996Nov 24, 1998Song; Young-RyeolPedal and pedal-length controller for automobile
US5911798 *Apr 9, 1997Jun 15, 1999Hand Tool Design CorporationHandle extension for ratchet wrench
US5931065 *May 19, 1997Aug 3, 1999Jackson; Roger LeeHand tool with axially repositionable shaft
US6038946 *May 19, 1997Mar 21, 2000Jackson; Roger LeeAxially repositionable adapter for use with a ratchet assembly
US6170161Mar 13, 2000Jan 9, 2001Ekco Housewares, Inc.Collapsible barbecue tools
US6266885Dec 4, 2000Jul 31, 2001Ekco Housewares, Inc.Collapsible barbecue tools
US6374500May 2, 2001Apr 23, 2002World Kitchen, Inc.Collapsible barbecue tools
US6490761 *Feb 21, 2001Dec 10, 2002Randy C. DurrantTelescoping tool handle
US6546596 *Jan 8, 2001Apr 15, 2003Rick V. GroteExtension pole for tools
US6779767Mar 13, 2001Aug 24, 2004Mavig GmbhExtension arm
US6814175Aug 7, 2003Nov 9, 2004John LeenBent torque rod
US6971290 *Jul 25, 2003Dec 6, 2005Ybarra Luis MAdjustable extension for socket wrenches
US6997654 *Aug 20, 2003Feb 14, 2006John BlickTapping tool for use with drill press
US7004671 *Jun 21, 2002Feb 28, 2006Kao CorporationPipe connecting structure and cleaning tool
US7287449 *Jul 21, 2003Oct 30, 2007Wera Werk Hermann Werner Gmbh & Co.KgScrewdriver with removable rod
US7290468 *Jan 24, 2005Nov 6, 2007Chin Shun ChengSocket adapter having positioning effect
US7798213 *Dec 14, 2006Sep 21, 2010Baker Hughes IncorporatedRadial spring latch apparatus and methods for making and using same
US7878094Feb 1, 2011Stanley Black & Decker, Inc.Tool with extendable handle
US8439122May 14, 2013Baker Hughes IncorporatedRadial spring latch apparatus and methods for making and using same
US8602366 *Mar 14, 2012Dec 10, 2013Hong Fu Jin Precision Industry (Wuhan) Co., Ltd.Supporting bracket for computer monitor
US8602367 *Mar 22, 2012Dec 10, 2013Hon Hai Precision Industry Co., Ltd.Supporting bracket for computer monitor device
US8667871Jan 13, 2011Mar 11, 2014Larry C. AhrensTelescoping extension tool
US8683657 *Aug 29, 2012Apr 1, 2014Thomas LinPress button-controlled retractable bar
US8757569 *Jun 19, 2012Jun 24, 2014Hong Fu Jin Precision Industry (Wuhan) Co., Ltd.Supporting apparatus for monitor
US20030001387 *Jun 21, 2002Jan 2, 2003Kao CorporationPipe connecting structure and cleaning tool
US20040026888 *Aug 7, 2003Feb 12, 2004John LeenBent torque rod
US20050042045 *Aug 20, 2003Feb 24, 2005John BlickTapping tool for use with drill press
US20050160882 *Jan 22, 2004Jul 28, 2005Crow Wesley L.Variable length socket
US20050204873 *Mar 22, 2004Sep 22, 2005Ana Giovanni STool handle extension
US20060048613 *Jul 21, 2003Mar 9, 2006Michael AbelScrewdriver with removable rod
US20070215771 *Jan 12, 2007Sep 20, 2007Karl KronungFixture to mount a device
US20080142228 *Dec 14, 2006Jun 19, 2008Harvey Peter RRadial spring latch apparatus and methods for making and using same
US20090272238 *Nov 5, 2009David Harrisscrew driver
US20110000681 *Jan 6, 2011Baker Hughes IncorporatedRadial Spring Latch Apparatus and Methods for Making and Using Same
US20110030224 *Aug 10, 2009Feb 10, 2011Desheng WangSide-push type composite putty knife
US20130026311 *Jan 31, 2013Hon Hai Precision Industry Co., Ltd.Supporting bracket for computer monitor
US20130026312 *Mar 22, 2012Jan 31, 2013Hon Hai Precision Industry Co., Ltd.Supporting bracket for computer monitor device
US20130068901 *Jun 19, 2012Mar 21, 2013Hon Hai Precision Industry Co., Ltd.Supporting apparatus for monitor
US20150336259 *May 21, 2014Nov 26, 2015Chad HartmanAdjustable tool extender
DE3038647A1 *Oct 13, 1980Apr 30, 1981NadellaKupplung
EP2946889A1May 19, 2014Nov 25, 2015SLS Powerinvest BVBAA connector assembly for connecting a domestic implement to a handle
WO1993010366A1 *Oct 30, 1992May 27, 1993Ina Wälzlager Schaeffler KgBall bearing for shafts subject to linear motion
WO2001090631A1 *Mar 13, 2001Nov 29, 2001Mavig GmbhExtension arm
U.S. Classification403/107, 16/429, 403/109.3, 81/177.2
International ClassificationB25G1/00, F16B7/10, F16D3/06, F16D3/02, F16B7/00, B25G1/04
Cooperative ClassificationB25G1/043, F16B7/105, F16D3/065
European ClassificationF16D3/06B, B25G1/04S, F16B7/10B