GB2556449B - Dual pawl having two pawl arms rotatable about a common axis - Google Patents

Dual pawl having two pawl arms rotatable about a common axis

Info

Publication number
GB2556449B
GB2556449B GB1716952.5A GB201716952A GB2556449B GB 2556449 B GB2556449 B GB 2556449B GB 201716952 A GB201716952 A GB 201716952A GB 2556449 B GB2556449 B GB 2556449B
Authority
GB
United Kingdom
Prior art keywords
pawl
common axis
dual
arms rotatable
rotatable
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.)
Active
Application number
GB1716952.5A
Other versions
GB2556449A (en
GB201716952D0 (en
Inventor
Thomas Ross Bell Roderick
Ryan Phillips David
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.)
William Hackett Lifting Products Ltd
Original Assignee
William Hackett Lifting Products 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 William Hackett Lifting Products Ltd filed Critical William Hackett Lifting Products Ltd
Priority to GB1716952.5A priority Critical patent/GB2556449B/en
Publication of GB201716952D0 publication Critical patent/GB201716952D0/en
Publication of GB2556449A publication Critical patent/GB2556449A/en
Priority to PCT/GB2018/052901 priority patent/WO2019077311A1/en
Application granted granted Critical
Publication of GB2556449B publication Critical patent/GB2556449B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
    • 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
    • B25B13/462—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 a direction radial to the tool operating axis
    • B25B13/463—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 a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/04—Driving gear manually operated
    • B66D1/06—Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
GB1716952.5A 2017-10-16 2017-10-16 Dual pawl having two pawl arms rotatable about a common axis Active GB2556449B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1716952.5A GB2556449B (en) 2017-10-16 2017-10-16 Dual pawl having two pawl arms rotatable about a common axis
PCT/GB2018/052901 WO2019077311A1 (en) 2017-10-16 2018-10-10 Improvements in or relating to ratchets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1716952.5A GB2556449B (en) 2017-10-16 2017-10-16 Dual pawl having two pawl arms rotatable about a common axis

Publications (3)

Publication Number Publication Date
GB201716952D0 GB201716952D0 (en) 2017-11-29
GB2556449A GB2556449A (en) 2018-05-30
GB2556449B true GB2556449B (en) 2018-10-24

Family

ID=60419329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1716952.5A Active GB2556449B (en) 2017-10-16 2017-10-16 Dual pawl having two pawl arms rotatable about a common axis

Country Status (2)

Country Link
GB (1) GB2556449B (en)
WO (1) WO2019077311A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112873625B (en) * 2021-01-08 2022-09-02 南丰县乾泰再生资源回收利用有限公司 Extrusion forming and recycling machine for waste polyester films

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB776916A (en) * 1955-11-23 1957-06-12 George Uhlig Improvements in winch
US3139268A (en) * 1960-05-02 1964-06-30 Duff Norton Co Ratchet lever hoist
FR2282917A1 (en) * 1974-08-29 1976-03-26 Lindblad O L Lock for vehicle safety belt winder - has inertial ball device lifting pawl against tooth wheel of belt reel
EP0048897A2 (en) * 1980-10-01 1982-04-07 Eaton Corporation Ratchet pawl
US4596310A (en) * 1983-04-12 1986-06-24 Fuji Electric Company, Ltd. Driving apparatus for an energy accumulator of a circuit breaker
US20060130614A1 (en) * 2004-10-12 2006-06-22 Easco Hand Tools, Inc. Method of forming a pawl pocket for a ratcheting tool and tool thereby formed
WO2017129402A1 (en) * 2016-01-27 2017-08-03 Wera - Werk Hermann Werner Gmbh & Co. Kg Screwdriver having a changeable direction freewheel lock

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951130B4 (en) * 1999-10-23 2005-09-15 Alstom S.A. Actuating device for actuating current paths
CN102184800A (en) * 2011-01-07 2011-09-14 无锡市锡山湖光电器有限公司 Compound ratchet wheel used for vacuum circuit breaker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB776916A (en) * 1955-11-23 1957-06-12 George Uhlig Improvements in winch
US3139268A (en) * 1960-05-02 1964-06-30 Duff Norton Co Ratchet lever hoist
FR2282917A1 (en) * 1974-08-29 1976-03-26 Lindblad O L Lock for vehicle safety belt winder - has inertial ball device lifting pawl against tooth wheel of belt reel
EP0048897A2 (en) * 1980-10-01 1982-04-07 Eaton Corporation Ratchet pawl
US4596310A (en) * 1983-04-12 1986-06-24 Fuji Electric Company, Ltd. Driving apparatus for an energy accumulator of a circuit breaker
US20060130614A1 (en) * 2004-10-12 2006-06-22 Easco Hand Tools, Inc. Method of forming a pawl pocket for a ratcheting tool and tool thereby formed
WO2017129402A1 (en) * 2016-01-27 2017-08-03 Wera - Werk Hermann Werner Gmbh & Co. Kg Screwdriver having a changeable direction freewheel lock

Also Published As

Publication number Publication date
WO2019077311A1 (en) 2019-04-25
GB2556449A (en) 2018-05-30
GB201716952D0 (en) 2017-11-29

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