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WO2009089628A8 - Upper hoist limiter - Google Patents

Upper hoist limiter Download PDF

Info

Publication number
WO2009089628A8
WO2009089628A8 PCT/CA2009/000048 CA2009000048W WO2009089628A8 WO 2009089628 A8 WO2009089628 A8 WO 2009089628A8 CA 2009000048 W CA2009000048 W CA 2009000048W WO 2009089628 A8 WO2009089628 A8 WO 2009089628A8
Authority
WO
WIPO (PCT)
Prior art keywords
crane
chain
state
hook block
upper hoist
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.)
Ceased
Application number
PCT/CA2009/000048
Other languages
French (fr)
Other versions
WO2009089628A1 (en
Inventor
Eric Beaulieu
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.)
LOAD SYSTEMS INTERNATIONAL Inc
Original Assignee
LOAD SYSTEMS INTERNATIONAL 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 LOAD SYSTEMS INTERNATIONAL Inc filed Critical LOAD SYSTEMS INTERNATIONAL Inc
Publication of WO2009089628A1 publication Critical patent/WO2009089628A1/en
Publication of WO2009089628A8 publication Critical patent/WO2009089628A8/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear
    • 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
    • B66D1/54—Safety gear
    • B66D1/56—Adaptations of limit switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

Described herein is an upper hoist limiter including a relatively heavy body that is suspended to the upper portion of a crane by a chain. A hoist cable of the crane is encircled by the body but is free to slide therein. When the hook block lifts the body, the tension on the chain is removed and the state of a switch enclosed in the body changes. A signal indicating this change of state is supplied to the crane operator so as to stop the upward movement of the hook block.
PCT/CA2009/000048 2008-01-16 2009-01-16 Upper hoist limiter Ceased WO2009089628A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US648708P 2008-01-16 2008-01-16
US61/006,487 2008-01-16

Publications (2)

Publication Number Publication Date
WO2009089628A1 WO2009089628A1 (en) 2009-07-23
WO2009089628A8 true WO2009089628A8 (en) 2009-10-22

Family

ID=40885027

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2009/000048 Ceased WO2009089628A1 (en) 2008-01-16 2009-01-16 Upper hoist limiter

Country Status (1)

Country Link
WO (1) WO2009089628A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102616686A (en) * 2012-03-13 2012-08-01 青岛金桥建设机械有限公司 Electronic limiting control system for lifting height of tower crane hook

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009014066U1 (en) * 2009-10-16 2011-03-03 Liebherr-Werk Ehingen Gmbh Lift limit switch and lifting device
US8905250B2 (en) 2010-04-16 2014-12-09 Manitowoc Crane Companies, Llc Power and control for wireless anti-two block system
CN102491182A (en) * 2011-11-18 2012-06-13 武汉船用机械有限责任公司 Heavy hammer type lifting limiter
CN102602816B (en) * 2012-03-30 2014-08-06 刘德明 Stroke double-insurance device for hook of bridge crane
CN102720800A (en) * 2012-07-04 2012-10-10 上海三一科技有限公司 Counterweight hammer and hoisting device
CN102910537A (en) * 2012-09-27 2013-02-06 太原重工股份有限公司 Counterweight limit switch device of hoisting mechanism
ES2534957B1 (en) * 2013-09-30 2016-02-02 Yoel Orlando IZQUIERDO HERNÁNDEZ SYSTEM FOR REPORTING THE CRANK OF LIFTING CRANES AND APPLIANCES WITH RESPECT TO LOAD.
JP6680056B2 (en) * 2016-04-13 2020-04-15 株式会社タダノ Suspended position detector and suspended position detector
RU171135U1 (en) * 2016-11-01 2017-05-22 Алексей Викторович Курбаков Lifting height limiter of the load gripping device of the load lifting machine
CN113853350B (en) * 2019-05-13 2024-06-04 科尼起重机全球公司 Limiter for steel wire rope hoister
RU192567U1 (en) * 2019-06-04 2019-09-23 Владимир Анатольевич Панфилов LOAD-CAPTURE DEVICE WITH FUNCTION OF WEIGHING WEIGHTS WHEN LOADING
JP7136135B2 (en) * 2020-01-17 2022-09-13 コベルコ建機株式会社 Overwinding detection structure for suspended load ropes of heavy weights and construction machinery
TR2021017876A2 (en) * 2021-11-17 2021-12-21 Elfatek Elektronik Makina Ve Otomasyonu Sanayi Ticaret Ltd Sirketi Rope Swing Safety System
CN115401642A (en) * 2022-08-27 2022-11-29 湖南湘钢工程技术有限公司 Process for replacing radiant tube of heat treatment furnace of medium-thickness steel plate in steel mill in thermal state
CN118545612B (en) * 2024-07-29 2024-10-01 杭萧钢构(洛阳)有限公司 High-precision intelligent hoisting equipment for steel structure corridor and construction method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969714A (en) * 1975-01-06 1976-07-13 Greer Gerald L Safety system for cranes
US4067447A (en) * 1975-12-29 1978-01-10 Goss John B Safety device for cranes
US5263660A (en) * 1990-08-17 1993-11-23 Iowa Mold Tooling Company, Inc. Anti-two block device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102616686A (en) * 2012-03-13 2012-08-01 青岛金桥建设机械有限公司 Electronic limiting control system for lifting height of tower crane hook

Also Published As

Publication number Publication date
WO2009089628A1 (en) 2009-07-23

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