CA2146069A1 - A dual-pawl ratcheting mechanism with provision for preventing pawl jamming - Google Patents

A dual-pawl ratcheting mechanism with provision for preventing pawl jamming

Info

Publication number
CA2146069A1
CA2146069A1 CA002146069A CA2146069A CA2146069A1 CA 2146069 A1 CA2146069 A1 CA 2146069A1 CA 002146069 A CA002146069 A CA 002146069A CA 2146069 A CA2146069 A CA 2146069A CA 2146069 A1 CA2146069 A1 CA 2146069A1
Authority
CA
Canada
Prior art keywords
pawl
teeth
pawls
drive body
jamming
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.)
Granted
Application number
CA002146069A
Other languages
French (fr)
Other versions
CA2146069C (en
Inventor
Thomas J. Diedrich
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.)
Snap On Inc
Original Assignee
Snap On 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
Application filed by Snap On Inc filed Critical Snap On Inc
Priority to CA002146069A priority Critical patent/CA2146069C/en
Publication of CA2146069A1 publication Critical patent/CA2146069A1/en
Application granted granted Critical
Publication of CA2146069C publication Critical patent/CA2146069C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

A ratcheting assembly around which is coaxially coupled a ratchet head of the type having internal teeth, the latter imparting rotational movement to the ratcheting assembly. The ratchet assembly includes a drive body having recessed grooves for receiving pivotably mounted first and second elongated pawls. Each pawl includes teeth on opposite ends thereof for engagement with the teeth on the ratchet head.
A reversing knob assembly is coupled to the drive body and includes a reversing knob and pins for pivotally rotating said pawls between first and second conditions. Pawl positioning pins coupled to the drive body operate to maintain the pawls with their longitudinal axes substantially parallel to each other so as to prevent them from jamming relative to the teeth on the ratchet head.
CA002146069A 1995-03-31 1995-03-31 A dual-pawl ratcheting mechanism with provision for preventing pawl jamming Expired - Fee Related CA2146069C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002146069A CA2146069C (en) 1995-03-31 1995-03-31 A dual-pawl ratcheting mechanism with provision for preventing pawl jamming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002146069A CA2146069C (en) 1995-03-31 1995-03-31 A dual-pawl ratcheting mechanism with provision for preventing pawl jamming

Publications (2)

Publication Number Publication Date
CA2146069A1 true CA2146069A1 (en) 1996-10-01
CA2146069C CA2146069C (en) 2001-05-22

Family

ID=4155546

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002146069A Expired - Fee Related CA2146069C (en) 1995-03-31 1995-03-31 A dual-pawl ratcheting mechanism with provision for preventing pawl jamming

Country Status (1)

Country Link
CA (1) CA2146069C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7987747B2 (en) 2007-04-05 2011-08-02 Snap-On Incorporated Bias assembly for ratchet tools
WO2018059607A1 (en) * 2016-09-30 2018-04-05 南通天茂机械制造有限公司 Mechanism that is non-engaging in forward direction and prevents direction change
CN115042115A (en) * 2021-03-09 2022-09-13 施耐宝公司 Combined casing for indexable electric ratchet tool
CN115383666A (en) * 2021-05-25 2022-11-25 施耐宝公司 Internal double pawl mechanism for indexable motorized ratchet tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7987747B2 (en) 2007-04-05 2011-08-02 Snap-On Incorporated Bias assembly for ratchet tools
USRE44655E1 (en) 2007-04-05 2013-12-24 Snap-On Incorporated Bias assembly for ratchet tools
WO2018059607A1 (en) * 2016-09-30 2018-04-05 南通天茂机械制造有限公司 Mechanism that is non-engaging in forward direction and prevents direction change
CN115042115A (en) * 2021-03-09 2022-09-13 施耐宝公司 Combined casing for indexable electric ratchet tool
CN115383666A (en) * 2021-05-25 2022-11-25 施耐宝公司 Internal double pawl mechanism for indexable motorized ratchet tool
GB2609077A (en) * 2021-05-25 2023-01-25 Snap On Incorporated Internal dual pawl mechanism for indexable motorized ratchet tools

Also Published As

Publication number Publication date
CA2146069C (en) 2001-05-22

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed