WO2008138027A1 - Improvement for tools that are used to tighten and loosen threaded fixings - Google Patents

Improvement for tools that are used to tighten and loosen threaded fixings Download PDF

Info

Publication number
WO2008138027A1
WO2008138027A1 PCT/AU2007/000614 AU2007000614W WO2008138027A1 WO 2008138027 A1 WO2008138027 A1 WO 2008138027A1 AU 2007000614 W AU2007000614 W AU 2007000614W WO 2008138027 A1 WO2008138027 A1 WO 2008138027A1
Authority
WO
WIPO (PCT)
Prior art keywords
tighten
tool
tools
fixing
improvement
Prior art date
Application number
PCT/AU2007/000614
Other languages
French (fr)
Inventor
James Allan Horan
Brent Garry Philp
Original Assignee
James Allan Horan
Brent Garry Philp
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 James Allan Horan, Brent Garry Philp filed Critical James Allan Horan
Priority to PCT/AU2007/000614 priority Critical patent/WO2008138027A1/en
Publication of WO2008138027A1 publication Critical patent/WO2008138027A1/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
    • B25B13/00—Spanners; Wrenches
    • 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
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type
    • 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
    • B25B13/48—Spanners; Wrenches for special purposes
    • 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
    • B25B13/56—Spanner sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/005—Handle constructions for screwdrivers, wrenches or spanners with additional levers, e.g. for increasing torque

Definitions

  • threaded fixings nuts, bolts or similar
  • Standard tools have a fixed length arm that will only allow for a single person to exercise a given amount of force onto the tool handle to remove the fixing.
  • This invention allows for a tool to increase the torque strength of the user and thus allowing for greater force to be applied to the problem fixing. By rotating two arms about a common pivot point and therefore increase the overall length of a tool there is an increase in force that can be applied by the user.
  • a tool that applies this invention is used to tighten any given threaded fixing, one should always be able to remove the same fixing with the same tool. This is achieved by allowing the tool arms to split, rotate and lock off when opened up for undoing the fixing (see drawings attached).
  • the force applied to a tool to tighten the fixing will always be less than the force applied when undoing the fixing by opening up the arms to increase leverage.
  • the invention increases the amount of purchase power the user, therefore a tool, can apply when undoing threaded fixings.
  • the invention must consist of at least two arms rotating around a pivot. When a tool is opened out about the pivot, the rotation of the arms is stopped by a stopper located on one of the arms.
  • This stopper strikes the alternate arm prior to overlapping or rotating past one hundred and eighty degrees. It is this arresting of the rotating motion that allows for the increasing of the tools length and therefore increased pressure that can be applied over the tools new and increased length.
  • the tool When rotated in the motion to tighten a threaded fixing, the tool will fold back to its shortest length. Matching rebates in the head of the tool stop the arms passing each other whilst tightening a fixing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rehabilitation Tools (AREA)

Abstract

A tool that can tighten any given threaded fixing and the same tool be able to remove the fixing, allowing the tool arms to split, rotate and lock when opened for undoing the fixing.

Description

IMPROVEMENT FOR TOOLS THAT ARE USED TO TIGHTEN AND
LOOSEN THREADED FIXINGS
The removal of threaded fixings (nuts, bolts or similar) that have been in place for extended periods, seized in place, been over tightened or been under heavy load often requires brute force to remove them from their housing. Standard tools have a fixed length arm that will only allow for a single person to exercise a given amount of force onto the tool handle to remove the fixing. This invention allows for a tool to increase the torque strength of the user and thus allowing for greater force to be applied to the problem fixing. By rotating two arms about a common pivot point and therefore increase the overall length of a tool there is an increase in force that can be applied by the user.
If a tool that applies this invention is used to tighten any given threaded fixing, one should always be able to remove the same fixing with the same tool. This is achieved by allowing the tool arms to split, rotate and lock off when opened up for undoing the fixing (see drawings attached). The force applied to a tool to tighten the fixing will always be less than the force applied when undoing the fixing by opening up the arms to increase leverage. The invention increases the amount of purchase power the user, therefore a tool, can apply when undoing threaded fixings. The invention must consist of at least two arms rotating around a pivot. When a tool is opened out about the pivot, the rotation of the arms is stopped by a stopper located on one of the arms. This stopper strikes the alternate arm prior to overlapping or rotating past one hundred and eighty degrees. It is this arresting of the rotating motion that allows for the increasing of the tools length and therefore increased pressure that can be applied over the tools new and increased length. When rotated in the motion to tighten a threaded fixing, the tool will fold back to its shortest length. Matching rebates in the head of the tool stop the arms passing each other whilst tightening a fixing.

Claims

Figure imgf000004_0001
PCT/AU2007/000614 2007-05-09 2007-05-09 Improvement for tools that are used to tighten and loosen threaded fixings WO2008138027A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/AU2007/000614 WO2008138027A1 (en) 2007-05-09 2007-05-09 Improvement for tools that are used to tighten and loosen threaded fixings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/AU2007/000614 WO2008138027A1 (en) 2007-05-09 2007-05-09 Improvement for tools that are used to tighten and loosen threaded fixings

Publications (1)

Publication Number Publication Date
WO2008138027A1 true WO2008138027A1 (en) 2008-11-20

Family

ID=40001567

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2007/000614 WO2008138027A1 (en) 2007-05-09 2007-05-09 Improvement for tools that are used to tighten and loosen threaded fixings

Country Status (1)

Country Link
WO (1) WO2008138027A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445404A (en) * 1981-12-09 1984-05-01 Bob Barber, Jr. Reversible ratchet wrench
DE20217684U1 (en) * 2002-11-15 2003-07-31 Hudel, Gudrun, 61169 Friedberg Foldable wheel nut wrench/spanner has fold-out grip arm extension forming long lever arm to release screw connection, short lever arm to tighten screw
US6651532B1 (en) * 2002-01-07 2003-11-25 Darcy L. Whitelock Drivable socket wrench
US20040139828A1 (en) * 2003-01-21 2004-07-22 Chang Hsueh Chin Structure of spanner handle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445404A (en) * 1981-12-09 1984-05-01 Bob Barber, Jr. Reversible ratchet wrench
US6651532B1 (en) * 2002-01-07 2003-11-25 Darcy L. Whitelock Drivable socket wrench
DE20217684U1 (en) * 2002-11-15 2003-07-31 Hudel, Gudrun, 61169 Friedberg Foldable wheel nut wrench/spanner has fold-out grip arm extension forming long lever arm to release screw connection, short lever arm to tighten screw
US20040139828A1 (en) * 2003-01-21 2004-07-22 Chang Hsueh Chin Structure of spanner handle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 200359, Derwent World Patents Index; Class P62, AN 2003-619554 *

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