US3403551A - Torque wrenches - Google Patents

Torque wrenches Download PDF

Info

Publication number
US3403551A
US3403551A US560236A US56023666A US3403551A US 3403551 A US3403551 A US 3403551A US 560236 A US560236 A US 560236A US 56023666 A US56023666 A US 56023666A US 3403551 A US3403551 A US 3403551A
Authority
US
United States
Prior art keywords
sleeve
torque
inner sleeve
slots
wrench
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US560236A
Other languages
English (en)
Inventor
Agostini Antoine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Simca Automobiles SA
Original Assignee
Simca Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Simca Automobiles SA filed Critical Simca Automobiles SA
Application granted granted Critical
Publication of US3403551A publication Critical patent/US3403551A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers

Definitions

  • a torque wrench comprising an outer sleeve having a substantially transversely extending handle rigidly secured thereto, an inner sleeve mounted within the outer sleeve and having slots between its two ends to define a plurality of deformable blades.
  • One end of the inner sleeve is mounted for rotation with the outer sleeve, and the other end of the inner sleeve is rigid with a threaded member adapted to receive a tool head for cooperation with an element to which the wrench is to be applied.
  • a member for measuring the displacement of the heads of the inner sleeve, under the action of torque transmitted by the wrench from the handle to the element, is mounted at one end of the inner sleeve.
  • the present invention relates generally to torque wrenches.
  • a torque wrench according to the invention may be used either for ascertaining the torque which has already been applied during a tightening operation which has already been effected, or for carrying out a tightening operation, under the normal conditions of use of a torque wrench.
  • a torque wrench according to the invention comprises a handle 1, for holding and controlling the wrench, this handle being welded, or fixed in any other desired manner, to an outer sleeve 2.
  • An inner sleeve 3 whose diameter, along part of its length, is smaller than the internal diameter of the sleeve 2, is arranged in the latter and is located by one end by a tip 4, which is, for example, square or hexagonal, interlocking in the corresponding end of the sleeve 2.
  • Two bearings 5 and 6, whose function will be described later, are provided between the sleeves 2 and 3.
  • the sleeve 3 is tubular in shape in its median part between its two ends 21, 22 and has slots 8 which, in the example shown in the drawing, are inclined with respect to the longitudinal axis of the tubular part of the sleeve and form a predetermined angle therewith, said slots 8 being parallel so as to define deformable blades 81:.
  • slots 8 could also be parallel to the longitudinal axis of the inner sleeve 3.
  • the slots 8 shown in the drawing have rounded ends, but this is not of course essential and the slots may be of any desired shape.
  • the upper end 21 of the sleeve 3 has a threaded recess 9 in which is screwed a dial indicator 10, having a rod 11 which extends into the internal cavity of the sleeve 3.
  • the dial indicator 10 is of conventional type having an indicating needle 18 and therefore does not need to be described in greater detail.
  • the lower end 12 of the rod 11 is urged by a spring (not shown) arranged in the casing of the dial indicator 10, against the upper face of the head 16 of a screw 13, screwed into an internally threaded aperture 14 of the nosepiece 22 (i.e., the toothed end) of the sleeve 3, the degree of penetration of the screw 13 being regulatable by shims 15 arranged between the head 16 of the screw 13 and the surface 17 of the sleeve 3.
  • the torsion of the sleeve 3 is shown, whatever may be the direction of application of the torque, by a deformation of the blades 8a and a shortening of this sleeve, in other words, the head 16 of the screw 13 integral with the lower part 22 of the sleeve, will approach the upper end 21 of the sleeve 3, consequently exerting a pressure on the rod 12 of the dial indicator.
  • the dial of the indicator 10 will advantageously be calibrated in increasing values, from one end of its scale to the other.
  • the slots 8 are sloping, the torsion of the sleeve 3 in one direction will produce a shortening, the head 16 then approaching the upper end 21 of the sleeve 3 and exerting a pressure on the rod 12 and, in contradistinction, if the torsion of the sleeve 3 is produced in the other direction, the sleeve 3 will be elongated; the head 16 will become separated from the upper end 21 of the sleeve 3, followed by the point of the dial indicator urged by its spring. If it were desired to utilize the wrench in the two directions, it would then be advantageous, with sloping slots -8, to locate the zero of the scale at the center, this. zero being the initial point of two parts of the scale, one directed towards the left of the figure and the other towards the right, in the increasing values.
  • a wrench according to the invention is extremely simple, robust, light in Weight, accurate and easily operable.
  • the measurement of the displacement which is ensured in the example chosen, by a dial indicator of conventional type, may be effected by any other mechanical, hydraulic, pneumatic or electrical indicating means.
  • a torque wrench for transmitting torque to an element comprising an outer sleeve having a substantially transversely extending handle rigidly secured thereto, an inner sleeve having two ends mounted within said outer sleeve, said inner sleeve being slotted to define a plurality of deformable blades between its two ends, one end of the inner sleeve being mounted for rotation with the outer sleeve, a threaded member rigid with the other end of the inner sleeve, a tool head removably mounted on said threaded member for cooperation with said element to which the wrench is to be applied, and indicator means carried at the one end of the inner sleeve, said indicator means including a movable rod depending thereform and bearing against said other end of the inner sleeve so as to be capable of measuring the relative displacement of the ends of the inner sleeve under the action of torque transmitted from the handle to the element.
  • said inner sleeve includes an internally threaded aperture at said other end, a screw having a head and threadably engaging in said aperture, and adjusting shims displaceably mounted between the inner sleeve and said screw head, said screw head being in contact with the rod of the indicator means.
  • a torque wrench according to claim 1 wherein said a r 4 slots in the wall of said inner sleeve are arranged with their axes parallel.
  • a torque wrench according to claim 1 wherein said slots in the wall of said inner sleeve are disposed with their axes parallel and inclined by a determined angle with respect to the longitudinal axis of the tubular part of said inner sleeve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US560236A 1965-06-28 1966-06-24 Torque wrenches Expired - Lifetime US3403551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR22619A FR1488217A (fr) 1965-06-28 1965-06-28 Clé dynamométrique

Publications (1)

Publication Number Publication Date
US3403551A true US3403551A (en) 1968-10-01

Family

ID=8583269

Family Applications (1)

Application Number Title Priority Date Filing Date
US560236A Expired - Lifetime US3403551A (en) 1965-06-28 1966-06-24 Torque wrenches

Country Status (7)

Country Link
US (1) US3403551A (de)
BE (1) BE682381A (de)
DE (1) DE1603960A1 (de)
ES (1) ES328353A1 (de)
FR (1) FR1488217A (de)
GB (1) GB1112806A (de)
OA (1) OA02234A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529460A (en) * 1968-02-23 1970-09-22 Ernst Marcus Load sensor and controller
EP1462221A1 (de) * 2003-03-24 2004-09-29 Kuken Co. Ltd Schlüssel
US7055415B1 (en) 2003-01-23 2006-06-06 Pilling Weck Incorporated Screwdriver assembly and method with torque measuring scale
WO2006062463A1 (en) * 2004-12-07 2006-06-15 Atlas Copco Tools Ab Pneumatic power wrench with pre-set torque levels
CN105313055A (zh) * 2015-10-30 2016-02-10 沈阳黎明航空发动机(集团)有限责任公司 一种用于锁紧周向环形槽叶片组合块的限力装置
CN112326106A (zh) * 2019-09-24 2021-02-05 河南牛帕力学工程研究院 一种标准扭矩扳子

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412382A1 (de) * 1984-04-03 1985-10-10 Hazet-Werk Hermann Zerver Gmbh & Co Kg, 5630 Remscheid Vorrichtung zur anzeige des ueberschreitens eines vorgegebenen, einstellbaren drehmoments an drehmomentschluesseln

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210632A (en) * 1938-02-23 1940-08-06 Perrill Harlan Knox Golf bag carrier
US2260036A (en) * 1940-08-24 1941-10-21 Gen Electric Transmission dynamometer
US3009360A (en) * 1960-04-29 1961-11-21 Bendix Corp Slotted tubular torsion bar suspension for an angular rate gyroscope
US3080334A (en) * 1959-12-04 1963-03-05 Goodyear Tire & Rubber Method of increasing the particle size and solids content of synthetic rubber latex
US3153930A (en) * 1960-08-18 1964-10-27 Autotronics Inc Torque-measuring device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210632A (en) * 1938-02-23 1940-08-06 Perrill Harlan Knox Golf bag carrier
US2260036A (en) * 1940-08-24 1941-10-21 Gen Electric Transmission dynamometer
US3080334A (en) * 1959-12-04 1963-03-05 Goodyear Tire & Rubber Method of increasing the particle size and solids content of synthetic rubber latex
US3009360A (en) * 1960-04-29 1961-11-21 Bendix Corp Slotted tubular torsion bar suspension for an angular rate gyroscope
US3153930A (en) * 1960-08-18 1964-10-27 Autotronics Inc Torque-measuring device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529460A (en) * 1968-02-23 1970-09-22 Ernst Marcus Load sensor and controller
US7055415B1 (en) 2003-01-23 2006-06-06 Pilling Weck Incorporated Screwdriver assembly and method with torque measuring scale
EP1462221A1 (de) * 2003-03-24 2004-09-29 Kuken Co. Ltd Schlüssel
WO2006062463A1 (en) * 2004-12-07 2006-06-15 Atlas Copco Tools Ab Pneumatic power wrench with pre-set torque levels
US20080115635A1 (en) * 2004-12-07 2008-05-22 Tore Gunnar Hellstrom Pneumatic Power Wrench With Pre-Set Torque Levels
US7587964B2 (en) 2004-12-07 2009-09-15 Atlas Copco Tools Ab Pneumatic power wrench with pre-set torque levels
CN105313055A (zh) * 2015-10-30 2016-02-10 沈阳黎明航空发动机(集团)有限责任公司 一种用于锁紧周向环形槽叶片组合块的限力装置
CN112326106A (zh) * 2019-09-24 2021-02-05 河南牛帕力学工程研究院 一种标准扭矩扳子
CN112326106B (zh) * 2019-09-24 2022-05-20 河南牛帕力学工程研究院 一种标准扭矩扳子

Also Published As

Publication number Publication date
BE682381A (de) 1966-11-14
DE1603960A1 (de) 1971-05-27
OA02234A (fr) 1970-05-05
ES328353A1 (es) 1967-04-01
GB1112806A (en) 1968-05-08
FR1488217A (fr) 1967-07-13

Similar Documents

Publication Publication Date Title
US2747454A (en) Bolt with frangible, ejectable tension indicating means
US2792733A (en) Pre-set torque indicating wrench
US3403551A (en) Torque wrenches
US2394022A (en) Torque screw driver
US2400978A (en) Torque indicating tool
US2099662A (en) Dynamometer
US3535958A (en) Preset torqueing devices for measured fastener turning
US2159373A (en) Torque wrench
US3429179A (en) Fastener tester
US4454790A (en) Bolt stretch measurement device
GB1166160A (en) Torque Measuring Equipment
US2219632A (en) Mechanical torque indicatoe
US2715333A (en) Torque measuring wrenches
US2913690A (en) Angular position transducers
US1557846A (en) Precision gauge, flexible type
US2803133A (en) Torque wrench
US2387814A (en) Gauging device
US2556761A (en) Combination micrometer caliper and dial gauge
US2312104A (en) Torque wrench
US3391573A (en) Torque wrench indicator and compensator
US2479230A (en) Torque measuring tool
US1420951A (en) Hole gauge
US3820388A (en) Device for measuring tensile forces
US3481193A (en) Torque wrench
US1649495A (en) Tool