EP0086082A3 - Ratchet and tools incorporating a ratchet - Google Patents

Ratchet and tools incorporating a ratchet Download PDF

Info

Publication number
EP0086082A3
EP0086082A3 EP83300535A EP83300535A EP0086082A3 EP 0086082 A3 EP0086082 A3 EP 0086082A3 EP 83300535 A EP83300535 A EP 83300535A EP 83300535 A EP83300535 A EP 83300535A EP 0086082 A3 EP0086082 A3 EP 0086082A3
Authority
EP
European Patent Office
Prior art keywords
ratchet
discs
ramps
shoulders
drive
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.)
Withdrawn
Application number
EP83300535A
Other languages
German (de)
French (fr)
Other versions
EP0086082A2 (en
Inventor
David William Marshall
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.)
Polstar Engineering Ltd
Original Assignee
Polstar Engineering Ltd
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 Polstar Engineering Ltd filed Critical Polstar Engineering Ltd
Publication of EP0086082A2 publication Critical patent/EP0086082A2/en
Publication of EP0086082A3 publication Critical patent/EP0086082A3/en
Withdrawn legal-status Critical Current

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
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings
    • 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
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/466—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in an axial direction
    • 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
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/467—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member which are gear-operated
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

In order to provide a ratchet which can be made from inexpensive parts, it comprises a pair of discs (5 and 6) having ramps (5a, 6a) upset from a peripheral zone of the discs and terminating in shoulders (5b, 6b). The discs are loaded together by a spring 9 which enables the drive to be transmitted via the faces of the ramps (5 and 6) up to a predetermined limit before the discs separate and the ratchet clicks over. In the opposite direction the drive is transmitted through the shoulders (5b, 6b), which may then be inclined to provide a torque limitation. The ratchet may for example be used in wheel braces (as illustrated in Figure 1) or in spark plug spanners.
EP83300535A 1982-02-04 1983-02-02 Ratchet and tools incorporating a ratchet Withdrawn EP0086082A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB8203215 1982-02-04
GB8203216 1982-02-04
GB8203215 1982-02-04
GB8203216 1982-02-04
GB8227947 1982-09-30
GB8227947 1982-09-30

Publications (2)

Publication Number Publication Date
EP0086082A2 EP0086082A2 (en) 1983-08-17
EP0086082A3 true EP0086082A3 (en) 1984-08-22

Family

ID=27261448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300535A Withdrawn EP0086082A3 (en) 1982-02-04 1983-02-02 Ratchet and tools incorporating a ratchet

Country Status (1)

Country Link
EP (1) EP0086082A3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565880B1 (en) * 1984-06-13 1989-02-03 Rousseau Jean Paul MULTIFUNCTIONAL CRANK FOR TIGHTENING AND UNLOCKING NUTS
DE4104352A1 (en) * 1991-02-13 1992-08-20 Carl Walter Schraubwerkzeug Fa Torque key for measuring tightening force of threaded parts - has two lever arms, one with contact section for force or pressure measurement device
GB2337717A (en) * 1998-05-26 1999-12-01 Phillip Jarrett Ratchet wheel brace
EP0960747A3 (en) * 1998-05-26 2000-11-02 Phillip Jarrett Wheel brace

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641136A (en) * 1949-12-03 1953-06-09 Jr Morris B Marsden Ratchet wrench
FR1051913A (en) * 1952-02-29 1954-01-20 Torque wrench
GB1107130A (en) * 1965-11-10 1968-03-20 Webb H C & Co Ltd Improvements relating to ratchet mechanism in lawn mowers
DE1603908A1 (en) * 1967-11-02 1972-03-09 P H Wagner Maschf Wrench like a socket wrench
US3905254A (en) * 1974-06-10 1975-09-16 Leonard Palatnick Lug nut remover
FR2340174A1 (en) * 1976-02-03 1977-09-02 Garconnet Michel CLAMPING FORCE LIMITER
GB2062524A (en) * 1979-11-02 1981-05-28 Rendl R Spark plug wrench adapted for adjustable torque

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641136A (en) * 1949-12-03 1953-06-09 Jr Morris B Marsden Ratchet wrench
FR1051913A (en) * 1952-02-29 1954-01-20 Torque wrench
GB1107130A (en) * 1965-11-10 1968-03-20 Webb H C & Co Ltd Improvements relating to ratchet mechanism in lawn mowers
DE1603908A1 (en) * 1967-11-02 1972-03-09 P H Wagner Maschf Wrench like a socket wrench
US3905254A (en) * 1974-06-10 1975-09-16 Leonard Palatnick Lug nut remover
FR2340174A1 (en) * 1976-02-03 1977-09-02 Garconnet Michel CLAMPING FORCE LIMITER
GB2062524A (en) * 1979-11-02 1981-05-28 Rendl R Spark plug wrench adapted for adjustable torque

Also Published As

Publication number Publication date
EP0086082A2 (en) 1983-08-17

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19850215

17Q First examination report despatched

Effective date: 19861105

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860831

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MARSHALL, DAVID WILLIAM