FR2294974A1 - Dispositif de blocage pour troncons mobiles relativement de la fleche d'une grue mobile - Google Patents

Dispositif de blocage pour troncons mobiles relativement de la fleche d'une grue mobile

Info

Publication number
FR2294974A1
FR2294974A1 FR7538863A FR7538863A FR2294974A1 FR 2294974 A1 FR2294974 A1 FR 2294974A1 FR 7538863 A FR7538863 A FR 7538863A FR 7538863 A FR7538863 A FR 7538863A FR 2294974 A1 FR2294974 A1 FR 2294974A1
Authority
FR
France
Prior art keywords
mobile
trunks
boom
relating
locking device
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
FR7538863A
Other languages
English (en)
Other versions
FR2294974B1 (fr
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.)
Harnischfeger Corp
Original Assignee
Harnischfeger Corp
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 Harnischfeger Corp filed Critical Harnischfeger Corp
Publication of FR2294974A1 publication Critical patent/FR2294974A1/fr
Application granted granted Critical
Publication of FR2294974B1 publication Critical patent/FR2294974B1/fr
Granted 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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
FR7538863A 1974-12-20 1975-12-18 Dispositif de blocage pour troncons mobiles relativement de la fleche d'une grue mobile Granted FR2294974A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/534,777 US3944082A (en) 1974-12-20 1974-12-20 Locking means for relatively movable boom sections of boom of mobile crane

Publications (2)

Publication Number Publication Date
FR2294974A1 true FR2294974A1 (fr) 1976-07-16
FR2294974B1 FR2294974B1 (fr) 1979-09-14

Family

ID=24131490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538863A Granted FR2294974A1 (fr) 1974-12-20 1975-12-18 Dispositif de blocage pour troncons mobiles relativement de la fleche d'une grue mobile

Country Status (6)

Country Link
US (1) US3944082A (fr)
JP (1) JPS5711835B2 (fr)
BR (1) BR7508538A (fr)
DE (1) DE2552112A1 (fr)
FR (1) FR2294974A1 (fr)
GB (1) GB1486359A (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4169535A (en) * 1976-09-09 1979-10-02 Pyramid Manufacturing Company Crane
US4091936A (en) * 1976-11-15 1978-05-30 The Warner & Swasey Company Apparatus for extending a boom assembly
US4155464A (en) * 1976-12-15 1979-05-22 Caterpillar Tractor Co. Offset jib for cranes
US4491229A (en) * 1981-02-25 1985-01-01 Fmc Corporation Boom extension stowage system
US4431109A (en) * 1981-02-25 1984-02-14 Fmc Corporation Boom extension stowage system
US4658972A (en) * 1982-01-26 1987-04-21 Kabushiki Kaisha Kobe Seiko Sho Method for stretching and folding extension jib in wheeled type crane
US4595108A (en) * 1982-01-26 1986-06-17 Kabushiki Kaisha Kobe Seiko Sho Method for stretching and folding extension jib in wheeled type crane
US4483447A (en) * 1982-05-26 1984-11-20 Kidde, Inc. Safety mounting for side stowable boom extension or jib
JPS58194538U (ja) * 1982-06-22 1983-12-24 日本電気ホームエレクトロニクス株式会社 波形整形回路
JPS6327396A (ja) * 1986-07-21 1988-02-05 株式会社タダノ 伸縮ブ−ムに継ぎ足されるジブ
DE4005082C1 (fr) * 1990-02-17 1991-09-19 Krupp Industrietechnik Gmbh, 4100 Duisburg, De
US5111945A (en) * 1991-09-13 1992-05-12 Kidde Industries, Inc. Boom extension alignment device
DE9307900U1 (de) * 1993-05-25 1994-10-06 Liebherr-Werk Biberach GmbH, 88400 Biberach Vorrichtung zum selbsttätigen Verriegeln eines inneren austeleskopierbaren Turmschusses mit einem äußeren Turmschuß
US5803279A (en) * 1996-09-13 1998-09-08 Pioneer Engineering Automatically deployable load-line receiving mast structure for limiting deflection of proportionally extendable boom section crane
GB0205899D0 (en) * 2002-03-13 2002-04-24 Huntleigh Technology Plc Hoist
DE10321493B4 (de) 2003-05-13 2006-07-20 Grove U.S. Llc Klappspitzen-Abwinklungsvorrichtung
RU2006106920A (ru) 2003-08-06 2007-09-20 Синомикс Инк. (Us) Гетеро-олигомерные вкусовые рецепторы t1r, клеточные линии, которые экспрессируют указанные рецепторы и вкусовые соединения
US7878346B1 (en) 2008-08-25 2011-02-01 Link-Belt Construction Equipment Co., L.P., Lllp Adaptable boom extension for a mobile crane having a telescoping boom
US7923233B1 (en) * 2009-12-07 2011-04-12 E. I. Du Pont De Nemours And Company Perhydrolase providing improved peracid stability
US8678210B1 (en) * 2010-11-17 2014-03-25 Link-Belt Construction Equipment Co., L.P., Lllp Telescoping boom assembly with base section having primary shell and secondary formed shell
US20210238010A1 (en) * 2018-06-27 2021-08-05 Inventio Ag Method and elevator controller for detecting a malfunction in an elevator
EP4244173A4 (fr) * 2020-11-13 2024-10-23 Bachmaier & Co Maschb Gmbh Véhicule à flèche avec ensemble flèche repliable verticalement et latéralement
CN115142679B (zh) * 2021-03-31 2023-08-29 三一汽车制造有限公司 工程机械

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1440796A (fr) * 1965-04-12 1966-06-03 Richier Sa Dispositif de verrouillage automatique d'un mât télescopique
US3674157A (en) * 1970-03-25 1972-07-04 Tyee Construction Co Crane with telescopic boom

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1410190A (en) * 1920-04-17 1922-03-21 John J Kaiser Fire apparatus
US1711282A (en) * 1928-03-30 1929-04-30 William J Orr Door holder
US3658189A (en) * 1970-01-06 1972-04-25 American Hoist & Derrick Co Hydraulic extensible boom structure
JPS509367Y2 (fr) * 1971-08-16 1975-03-22
US3831771A (en) * 1973-02-16 1974-08-27 Harnischfeger Corp Mobile crane with telescopic boom and jib and method for connecting the latter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1440796A (fr) * 1965-04-12 1966-06-03 Richier Sa Dispositif de verrouillage automatique d'un mât télescopique
US3674157A (en) * 1970-03-25 1972-07-04 Tyee Construction Co Crane with telescopic boom

Also Published As

Publication number Publication date
JPS5187248A (fr) 1976-07-30
FR2294974B1 (fr) 1979-09-14
US3944082A (en) 1976-03-16
JPS5711835B2 (fr) 1982-03-06
GB1486359A (en) 1977-09-21
DE2552112A1 (de) 1976-06-24
BR7508538A (pt) 1976-08-24

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Legal Events

Date Code Title Description
ST Notification of lapse