EP4151584A4 - Telescopic boom - Google Patents

Telescopic boom Download PDF

Info

Publication number
EP4151584A4
EP4151584A4 EP21821923.6A EP21821923A EP4151584A4 EP 4151584 A4 EP4151584 A4 EP 4151584A4 EP 21821923 A EP21821923 A EP 21821923A EP 4151584 A4 EP4151584 A4 EP 4151584A4
Authority
EP
European Patent Office
Prior art keywords
telescopic boom
boom
telescopic
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.)
Pending
Application number
EP21821923.6A
Other languages
German (de)
French (fr)
Other versions
EP4151584A1 (en
Inventor
Kenji Shimizu
Kazuhiro Kobayashi
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.)
Tadano Ltd
Original Assignee
Tadano Ltd
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 Tadano Ltd filed Critical Tadano Ltd
Priority claimed from PCT/JP2021/021572 external-priority patent/WO2021251338A1/en
Publication of EP4151584A1 publication Critical patent/EP4151584A1/en
Publication of EP4151584A4 publication Critical patent/EP4151584A4/en
Pending 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
    • 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
    • B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
EP21821923.6A 2020-06-08 2021-06-07 Telescopic boom Pending EP4151584A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020099619 2020-06-08
PCT/JP2021/021572 WO2021251338A1 (en) 2020-06-08 2021-06-07 Telescopic boom

Publications (2)

Publication Number Publication Date
EP4151584A1 EP4151584A1 (en) 2023-03-22
EP4151584A4 true EP4151584A4 (en) 2024-05-29

Family

ID=79168648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21821923.6A Pending EP4151584A4 (en) 2020-06-08 2021-06-07 Telescopic boom

Country Status (3)

Country Link
EP (1) EP4151584A4 (en)
JP (1) JP2021193055A (en)
CN (1) CN115515887A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332548A (en) * 1976-09-04 1978-03-27 Nippon Guroobu Kk Extendable boom reaction support mechanism
US6206213B1 (en) * 1999-04-29 2001-03-27 Mannesmann Ag Crane with a luffing jib
DE29824867U1 (en) * 1997-05-28 2003-03-06 Demag Mobile Cranes GmbH & Co. KG, 80333 München Crane with telescopic boom - has individual sections movable by hydraulic piston cylinder unit whose displaceable element has at inner and outer ends security locking units to couple with recesses in telescopic sections
DE202014002187U1 (en) * 2014-03-13 2014-06-26 Tadano Faun Gmbh Telescopic Booms
EP3053869A1 (en) * 2015-02-04 2016-08-10 Tadano Ltd. Telescopic boom extension device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332548A (en) * 1976-09-04 1978-03-27 Nippon Guroobu Kk Extendable boom reaction support mechanism
DE29824867U1 (en) * 1997-05-28 2003-03-06 Demag Mobile Cranes GmbH & Co. KG, 80333 München Crane with telescopic boom - has individual sections movable by hydraulic piston cylinder unit whose displaceable element has at inner and outer ends security locking units to couple with recesses in telescopic sections
US6206213B1 (en) * 1999-04-29 2001-03-27 Mannesmann Ag Crane with a luffing jib
DE202014002187U1 (en) * 2014-03-13 2014-06-26 Tadano Faun Gmbh Telescopic Booms
EP3053869A1 (en) * 2015-02-04 2016-08-10 Tadano Ltd. Telescopic boom extension device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021251338A1 *

Also Published As

Publication number Publication date
CN115515887A (en) 2022-12-23
JP2021193055A (en) 2021-12-23
EP4151584A1 (en) 2023-03-22

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A4 Supplementary search report drawn up and despatched

Effective date: 20240502

RIC1 Information provided on ipc code assigned before grant

Ipc: B66C 23/70 20060101ALI20240426BHEP

Ipc: B66C 23/693 20060101ALI20240426BHEP

Ipc: B66C 23/687 20060101AFI20240426BHEP