GB201314523D0 - Device for limiting chain slippage and hoist system using the same - Google Patents

Device for limiting chain slippage and hoist system using the same

Info

Publication number
GB201314523D0
GB201314523D0 GBGB1314523.0A GB201314523A GB201314523D0 GB 201314523 D0 GB201314523 D0 GB 201314523D0 GB 201314523 A GB201314523 A GB 201314523A GB 201314523 D0 GB201314523 D0 GB 201314523D0
Authority
GB
United Kingdom
Prior art keywords
chain
lock
handle
roller
locking arm
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
GBGB1314523.0A
Other versions
GB2501848A (en
GB2501848B (en
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.)
Balfour Beatty PLC
Original Assignee
Balfour Beatty PLC
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 Balfour Beatty PLC filed Critical Balfour Beatty PLC
Publication of GB201314523D0 publication Critical patent/GB201314523D0/en
Publication of GB2501848A publication Critical patent/GB2501848A/en
Application granted granted Critical
Publication of GB2501848B publication Critical patent/GB2501848B/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
    • 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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/02—Driving-chains
    • F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
    • 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
    • B66D3/16—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable operated by an endless chain passing over a pulley or a sprocket
    • 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
    • B66D3/18—Power-operated hoists
    • B66D3/26—Other details, e.g. housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
    • B66D5/32—Detent devices
    • B66D5/34—Detent devices having latches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

A chain lock or stopper for clamping to a roller chain 10 includes a handle 24 rotatable between lock and release positions and a locking arm 22 moved by the handle 24 between a lock position between adjacent roller surfaces of a roller chain and a release position spaced from the path of the roller chain. In a release mode, the chain lock can be slid along the chain 10 and in the lock mode it is fixed in position along the chain 10 and may abut the casing of a hoist (12 fig. 1) and limit slippage should the chain slip in the hoist. The locking arm 22 may be rotatable by the handle 24. Two locking arms 22 may be provided and may be positioned between different roller surfaces. The locking arm 22 may be curved. The chain lock may include a central body 26 for mounting on the chain by means of a slot 28. A spring 40 may bias the handle 24 to the locked position.
GB1314523.0A 2011-02-28 2012-02-27 Device for limiting chain slippage and hoist system using the same Active GB2501848B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1103351.1A GB2488363A (en) 2011-02-28 2011-02-28 Lock device for limiting chain slippage in a hoist system
PCT/GB2012/050438 WO2012117237A1 (en) 2011-02-28 2012-02-27 Device for limiting chain slippage and hoist system using the same

Publications (3)

Publication Number Publication Date
GB201314523D0 true GB201314523D0 (en) 2013-09-25
GB2501848A GB2501848A (en) 2013-11-06
GB2501848B GB2501848B (en) 2016-03-16

Family

ID=43904261

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1103351.1A Withdrawn GB2488363A (en) 2011-02-28 2011-02-28 Lock device for limiting chain slippage in a hoist system
GB1314523.0A Active GB2501848B (en) 2011-02-28 2012-02-27 Device for limiting chain slippage and hoist system using the same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1103351.1A Withdrawn GB2488363A (en) 2011-02-28 2011-02-28 Lock device for limiting chain slippage in a hoist system

Country Status (2)

Country Link
GB (2) GB2488363A (en)
WO (1) WO2012117237A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI126405B (en) 2012-10-08 2016-11-15 Konecranes Global Oy Chain lock

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2340409A (en) * 1941-08-08 1944-02-01 Continental Gin Co Chain hoist
GB830545A (en) * 1956-01-09 1960-03-16 Legrand Pierre Improvements in or relating to chain locking devices
US4398387A (en) * 1982-03-08 1983-08-16 Columbus Mckinnon Corporation Chain travel stop
JPS6016496U (en) * 1983-03-02 1985-02-04 象印チエンブロツク株式会社 electric chain block
JPH026070Y2 (en) * 1987-12-14 1990-02-14
DE10034950B4 (en) * 2000-07-13 2009-02-12 Hoffmann Fördertechnik GmbH Wurzen Chain attachment for the steel chain of chain hoists

Also Published As

Publication number Publication date
WO2012117237A1 (en) 2012-09-07
GB201103351D0 (en) 2011-04-13
GB2501848A (en) 2013-11-06
GB2501848B (en) 2016-03-16
GB2488363A (en) 2012-08-29

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