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WO1993006969A3 - Torque wrench - Google Patents

Torque wrench Download PDF

Info

Publication number
WO1993006969A3
WO1993006969A3 PCT/US1992/008632 US9208632W WO9306969A3 WO 1993006969 A3 WO1993006969 A3 WO 1993006969A3 US 9208632 W US9208632 W US 9208632W WO 9306969 A3 WO9306969 A3 WO 9306969A3
Authority
WO
WIPO (PCT)
Prior art keywords
wrench
torque
adapter
ratchet mechanism
memory
Prior art date
Application number
PCT/US1992/008632
Other languages
French (fr)
Other versions
WO1993006969A2 (en
Inventor
George L Castle
Robert L Brass
Stephen B Boyd
Douglas A Johnson
Roger W Masson
Anthony J Sergan
Original Assignee
Barnes Group Inc
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
Priority claimed from US07/774,678 external-priority patent/US5203239A/en
Priority claimed from US07/940,552 external-priority patent/US5388478A/en
Application filed by Barnes Group Inc filed Critical Barnes Group Inc
Publication of WO1993006969A2 publication Critical patent/WO1993006969A2/en
Publication of WO1993006969A3 publication Critical patent/WO1993006969A3/en

Links

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
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/004—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type
    • B25B21/005—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type driven by a radially acting hydraulic or pneumatic piston
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

A torque wrench (10) and monitoring system (82, 100, 112, 114, 180, etc.), for measuring and displaying torque applied and angle of rotation of a part being torqued. In one embodiment, the invention comprises a torque wrench (10) with a central rotating ratchet mechanism (20) linked to a plurality of hydraulic cylinders (22) by clevises (26). The cylinders (22) are arranged to provide at least two pairs of diametrically-opposed forces acting on the ratchet mechanism (20). Torque is measured by strain gauges (82) mounted on reaction pins (80) of the torque wrench (10). Angle of rotation is measured by optical encoder (100) cooperating with the ratchet mechanism (20). In a preferred embodiment, a processing system (112) including a memory (114) is mounted integrally within the wrench housing (14, 16), thus, insuring that key information with respect to the wrench remains with the wrench. A second processing system (150), memory (174) and display unit (110) is provided to manipulate information monitored from the wrench. In an alternative embodiment, an adapter (212) for a wrench is provided. The adapter (212) includes an optical encoder (222) and strain gauges (82) mounted on reaction pins (220). The adapter (212) also includes a first processor (112) and memory unit (114) as described above. In a further feature of the invention, a rapid traverse adapter assembly (230) is provided to rapidly pretorque or pretighten the part to be torqued without utilizing the hydraulic system of the wrench.
PCT/US1992/008632 1991-10-11 1992-10-09 Torque wrench WO1993006969A2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US774,678 1991-10-11
US07/774,678 US5203239A (en) 1990-05-22 1991-10-11 Torque wrench
US94135592A 1992-09-04 1992-09-04
US94135492A 1992-09-04 1992-09-04
US941,355 1992-09-04
US940,552 1992-09-04
US07/940,552 US5388478A (en) 1992-09-04 1992-09-04 Torque wrench having a rapid traverse adapter and a method for its use
US941,354 1992-09-04

Publications (2)

Publication Number Publication Date
WO1993006969A2 WO1993006969A2 (en) 1993-04-15
WO1993006969A3 true WO1993006969A3 (en) 1993-05-13

Family

ID=27505733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/008632 WO1993006969A2 (en) 1991-10-11 1992-10-09 Torque wrench

Country Status (1)

Country Link
WO (1) WO1993006969A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29607207U1 (en) * 1996-04-20 1997-08-21 Wagner, Paul-Heinz, 53804 Much Hydraulic power wrench
US5898598A (en) * 1996-10-25 1999-04-27 Cooper Technologies Company System and apparatus for a torque transducer with data processing capabilities
US5918201A (en) * 1996-10-25 1999-06-29 Gpx Corporation System and method for monitoring tool cycles
WO2013036137A2 (en) * 2011-09-09 2013-03-14 National Oilwell Varco Norway As An apparatus and a method for torque compensation

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091451A (en) * 1977-04-26 1978-05-23 Weatherford/Lamb, Inc. Method of and apparatus for making up a threaded connection
EP0018115A1 (en) * 1979-03-28 1980-10-29 Charles W. Calhoun Method and apparatus for measuring the makeup of a threaded connection
US4375122A (en) * 1980-04-07 1983-03-01 Sps Technologies, Inc. Method and apparatus for tightening threaded fastener assemblies
DE3221658A1 (en) * 1982-06-08 1983-12-08 Schatz Testronic GmbH, 5630 Remscheid Method and device for checking the tightening torque of screws and similar connecting elements
DE3222156A1 (en) * 1982-06-12 1983-12-15 Spitznas Maschinenfabrik GmbH, 5620 Velbert Screwdriver for the defined tightening of screws by means of a tool operated by auxiliary force
EP0133557A1 (en) * 1983-08-09 1985-02-27 Dr. Staiger, Mohilo + Co GmbH Ratchet wrench for driving screws
US4845998A (en) * 1988-02-01 1989-07-11 Kent-Moore Corporation Apparatus for precision tensioning of threaded fasteners
US4976159A (en) * 1989-10-11 1990-12-11 Raymond Engineering Inc. Dual mode torque wrench
US5056384A (en) * 1990-05-22 1991-10-15 Barnes Group Inc. Torque wrench

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091451A (en) * 1977-04-26 1978-05-23 Weatherford/Lamb, Inc. Method of and apparatus for making up a threaded connection
EP0018115A1 (en) * 1979-03-28 1980-10-29 Charles W. Calhoun Method and apparatus for measuring the makeup of a threaded connection
US4375122A (en) * 1980-04-07 1983-03-01 Sps Technologies, Inc. Method and apparatus for tightening threaded fastener assemblies
DE3221658A1 (en) * 1982-06-08 1983-12-08 Schatz Testronic GmbH, 5630 Remscheid Method and device for checking the tightening torque of screws and similar connecting elements
DE3222156A1 (en) * 1982-06-12 1983-12-15 Spitznas Maschinenfabrik GmbH, 5620 Velbert Screwdriver for the defined tightening of screws by means of a tool operated by auxiliary force
EP0133557A1 (en) * 1983-08-09 1985-02-27 Dr. Staiger, Mohilo + Co GmbH Ratchet wrench for driving screws
US4845998A (en) * 1988-02-01 1989-07-11 Kent-Moore Corporation Apparatus for precision tensioning of threaded fasteners
US4976159A (en) * 1989-10-11 1990-12-11 Raymond Engineering Inc. Dual mode torque wrench
US5056384A (en) * 1990-05-22 1991-10-15 Barnes Group Inc. Torque wrench

Also Published As

Publication number Publication date
WO1993006969A2 (en) 1993-04-15

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