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
hoist
chain
state
limiter
Prior art date
Application number
PCT/CA2009/000048
Other languages
French (fr)
Other versions
WO2009089628A1 (en
Inventor
Eric Beaulieu
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
Priority to US648708P priority Critical
Priority to US61/006,487 priority
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/88Safety gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54Safety gear
    • B66D1/56Adaptations of limit switches

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 WO2009089628A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US648708P true 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 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 (10)

* 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.
RU171135U1 (en) * 2016-11-01 2017-05-22 Алексей Викторович Курбаков Lifting height limiter of the load gripping device of the load lifting machine
WO2020229731A1 (en) * 2019-05-13 2020-11-19 Konecranes Global Oy Wire rope hoist limiter
RU192567U1 (en) * 2019-06-04 2019-09-23 Владимир Анатольевич Панфилов Load-capture device with function of weighing weights when loading

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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