ZA915517B - Fluid-operated wrench - Google Patents

Fluid-operated wrench

Info

Publication number
ZA915517B
ZA915517B ZA915517A ZA915517A ZA915517B ZA 915517 B ZA915517 B ZA 915517B ZA 915517 A ZA915517 A ZA 915517A ZA 915517 A ZA915517 A ZA 915517A ZA 915517 B ZA915517 B ZA 915517B
Authority
ZA
South Africa
Prior art keywords
housing
threaded connector
loosening
fluid
ratchet
Prior art date
Application number
ZA915517A
Inventor
John K Junkers
K Junkers John
Original Assignee
K Junkers John
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 K Junkers John filed Critical K Junkers John
Publication of ZA915517B publication Critical patent/ZA915517B/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
    • B25B23/0078—Reaction arms
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Pens And Brushes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Switches With Compound Operations (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

A fluid-operated power wrench has a housing (5), a fluid-operated drive (1), a ratchet (6) turnably mounted in the housing (5) and connected with the drive (1) so as to be turned by the latter, and also formed as a one-way ratchet so that when going from loosening of a threaded connector to tightening of a threaded connector and vice versa, the housing (5) together with the ratchet (6) is to be turned over. A first engaging element (19) is connected with the ratchet (6) for loosening the threaded connector on one side of the housing (5) and for tightening the threaded connector on the other side of the housing (5). A second engaging element (24) is connected with the housing (5) for loosening a threaded connector on the one side of the housing (5) and for tightening a threaded connector on the other side of the housing (5). A reaction element (27) is connected with the second engaging element (24) so as to transfer the reaction force to a stationary object during tightening and loosening, so that the housing (5) becomes stationary while the first engaging element (19) turns.
ZA915517A 1990-10-08 1991-07-15 Fluid-operated wrench ZA915517B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61116890A 1990-10-08 1990-10-08

Publications (1)

Publication Number Publication Date
ZA915517B true ZA915517B (en) 1992-05-27

Family

ID=24447900

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA915517A ZA915517B (en) 1990-10-08 1991-07-15 Fluid-operated wrench

Country Status (11)

Country Link
EP (1) EP0504331B1 (en)
JP (1) JPH0755453B2 (en)
KR (1) KR970001153B1 (en)
AT (1) ATE168308T1 (en)
AU (1) AU641502B2 (en)
BR (1) BR9105922A (en)
DE (1) DE69129799T2 (en)
DK (1) DK0504331T3 (en)
ES (1) ES2118083T3 (en)
WO (1) WO1992005917A1 (en)
ZA (1) ZA915517B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7497147B2 (en) * 2006-09-12 2009-03-03 Unex Corporation Torque tool for tightening or loosening connections, and method of tightening or loosening the same
ES2349981B2 (en) * 2006-09-12 2011-12-12 Unex Corporation TORSION TOOL TO TIGHTEN AND LOOSE CONNECTIONS, AND METHOD TO TIGHTEN AND LOOSE THEMSELVES.
US7735397B2 (en) * 2007-06-01 2010-06-15 Junkers John K Fluid operated torque tool for and a method of tightening a nut on a plate on railroad crossings
EP2747943B1 (en) * 2011-08-26 2019-10-09 Hytorc Division Unex Corporation Apparatus for tightening threaded fasteners

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015700B1 (en) * 1971-02-25 1975-06-06
US3941017A (en) * 1975-04-14 1976-03-02 Davenport Tool Co. Plier type ratchet wrench
US4201099B1 (en) * 1978-08-14 1993-12-07 K. Junkers John Hydraulic wrench
US4448096A (en) * 1980-12-22 1984-05-15 Collins Bobby W Flutter lift for torque wrench
US4706527A (en) * 1984-10-22 1987-11-17 Junkers John K Fluid operated wrench for tightening or loosening a threaded connector
GB8701194D0 (en) * 1987-01-20 1987-02-25 Hedley Purvis Ltd Torque wrenches
US4846028A (en) * 1987-10-06 1989-07-11 Junkers John K Fluid-operated wrench
GB8902659D0 (en) * 1989-02-07 1989-03-30 Hedley Purvis Ltd Improved hydraulic torque wrench

Also Published As

Publication number Publication date
WO1992005917A1 (en) 1992-04-16
JPH05504918A (en) 1993-07-29
EP0504331B1 (en) 1998-07-15
BR9105922A (en) 1993-03-30
EP0504331A4 (en) 1992-11-19
AU641502B2 (en) 1993-09-23
DE69129799T2 (en) 1998-11-19
DE69129799D1 (en) 1998-08-20
ES2118083T3 (en) 1998-09-16
KR970001153B1 (en) 1997-01-29
AU7760291A (en) 1992-04-28
DK0504331T3 (en) 1999-04-19
KR920702273A (en) 1992-09-03
JPH0755453B2 (en) 1995-06-14
ATE168308T1 (en) 1998-08-15
EP0504331A1 (en) 1992-09-23

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