EP0893392A3 - Telescopic crane with luffable jib extension - Google Patents

Telescopic crane with luffable jib extension Download PDF

Info

Publication number
EP0893392A3
EP0893392A3 EP98250227A EP98250227A EP0893392A3 EP 0893392 A3 EP0893392 A3 EP 0893392A3 EP 98250227 A EP98250227 A EP 98250227A EP 98250227 A EP98250227 A EP 98250227A EP 0893392 A3 EP0893392 A3 EP 0893392A3
Authority
EP
European Patent Office
Prior art keywords
arm
jib
luffable
telescopic crane
jib extension
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
EP98250227A
Other languages
German (de)
French (fr)
Other versions
EP0893392B1 (en
EP0893392A2 (en
Inventor
Michael Dipl.-Ing. Irsch
Oliver Dr.-Ing. Fries
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.)
Demag Mobile Cranes GmbH and Co KG
Original Assignee
Mannesmann AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7836601&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0893392(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0893392A2 publication Critical patent/EP0893392A2/en
Publication of EP0893392A3 publication Critical patent/EP0893392A3/en
Application granted granted Critical
Publication of EP0893392B1 publication Critical patent/EP0893392B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B66C23/82—Luffing gear
    • 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
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The sections of the telescopic main jib-arm are moved in and out by a telescopic cylinder linked to the outer jib-arm section. The tiltable auxiliary jib-arm possessing an end-piece has at least one or more interconnectable lattice mast elements, and is positioned on the main jib-arm. An angled lattice point (11) is positioned on the top (9) of the tiltable auxiliary jib-arm element (16) by means of an intermediate piece (10) setting the angle towards the main jib arm (1). The intermediate piece has at least one connecting rod and piston-cylinder unit.
EP98250227A 1997-07-17 1998-06-23 Telescopic crane with luffable jib extension Expired - Lifetime EP0893392B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19731587A DE19731587A1 (en) 1997-07-17 1997-07-17 Telescopic crane with luffing jib
DE19731587 1997-07-17

Publications (3)

Publication Number Publication Date
EP0893392A2 EP0893392A2 (en) 1999-01-27
EP0893392A3 true EP0893392A3 (en) 2000-09-06
EP0893392B1 EP0893392B1 (en) 2002-05-15

Family

ID=7836601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98250227A Expired - Lifetime EP0893392B1 (en) 1997-07-17 1998-06-23 Telescopic crane with luffable jib extension

Country Status (3)

Country Link
EP (1) EP0893392B1 (en)
AT (1) ATE217602T1 (en)
DE (2) DE19731587A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001094249A1 (en) * 2000-06-06 2001-12-13 Demag Mobile Cranes Gmbh Method and device for mounting a wind turbine
DE10321493B4 (en) * 2003-05-13 2006-07-20 Grove U.S. Llc Folding pinnacle bending
DE102005049606B4 (en) * 2005-10-17 2016-03-31 Liebherr-Werk Ehingen Gmbh Mobile crane with additional boom and procedure for disassembling the jib
DE202005016743U1 (en) * 2005-10-25 2007-03-29 Liebherr-Werk Ehingen Gmbh Crane comprises a bracing device having two brace supports hinged on an auxiliary boom and inclined opposite a rocker surface
DE202008004663U1 (en) * 2008-04-04 2009-08-13 Liebherr-Werk Ehingen Gmbh Lattice boom crane and lattice boom
DE102018106753B4 (en) 2018-03-22 2021-11-11 Liebherr-Werk Ehingen Gmbh Mobile crane with a two-part luffing jib and a method for erecting the boom system of such a mobile crane
CN111099506A (en) * 2019-12-13 2020-05-05 燕山大学 Optimal stress angle adjusting device for suspension arm of automobile crane
CN111704049A (en) * 2020-06-30 2020-09-25 三一汽车起重机械有限公司 Crane boom and crane

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849144A1 (en) * 1977-11-21 1979-05-23 Creusot Loire TELESCOPIC BOOM CRANE WITH ADDITIONAL BOOM
DE3042287A1 (en) * 1980-11-08 1982-06-09 Fried. Krupp Gmbh, 4300 Essen Heavy-duty telescopic crane jib - has fly jib attached by pivot pins to main jib and gantry
DE9013488U1 (en) * 1990-09-25 1990-12-06 Liebherr-Werk Ehingen Gmbh, 7930 Ehingen, De

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2593349B2 (en) * 1988-10-21 1997-03-26 清水建設株式会社 Crane device and method of using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849144A1 (en) * 1977-11-21 1979-05-23 Creusot Loire TELESCOPIC BOOM CRANE WITH ADDITIONAL BOOM
DE3042287A1 (en) * 1980-11-08 1982-06-09 Fried. Krupp Gmbh, 4300 Essen Heavy-duty telescopic crane jib - has fly jib attached by pivot pins to main jib and gantry
DE9013488U1 (en) * 1990-09-25 1990-12-06 Liebherr-Werk Ehingen Gmbh, 7930 Ehingen, De

Also Published As

Publication number Publication date
DE59804117D1 (en) 2002-06-20
EP0893392B1 (en) 2002-05-15
DE19731587A1 (en) 1999-01-28
EP0893392A2 (en) 1999-01-27
ATE217602T1 (en) 2002-06-15

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