EP0768274A4 - Method of and apparatus for extending and storing boom - Google Patents

Method of and apparatus for extending and storing boom

Info

Publication number
EP0768274A4
EP0768274A4 EP95922760A EP95922760A EP0768274A4 EP 0768274 A4 EP0768274 A4 EP 0768274A4 EP 95922760 A EP95922760 A EP 95922760A EP 95922760 A EP95922760 A EP 95922760A EP 0768274 A4 EP0768274 A4 EP 0768274A4
Authority
EP
European Patent Office
Prior art keywords
boom
storing
extending
storing boom
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
EP95922760A
Other languages
German (de)
French (fr)
Other versions
EP0768274A1 (en
EP0768274B1 (en
Inventor
Masayuki Mukaino
Keiichi Mokka
Masanori Ikari
Minori Wada
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.)
Komatsu Ltd
Komatsu MEC Corp
Komatsu MEC KK
Original Assignee
Komatsu Ltd
Komatsu MEC Corp
Komatsu MEC KK
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=15895953&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0768274(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Komatsu Ltd, Komatsu MEC Corp, Komatsu MEC KK filed Critical Komatsu Ltd
Publication of EP0768274A1 publication Critical patent/EP0768274A1/en
Publication of EP0768274A4 publication Critical patent/EP0768274A4/en
Application granted granted Critical
Publication of EP0768274B1 publication Critical patent/EP0768274B1/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
    • B66C23/64—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)
EP95922760A 1994-06-28 1995-06-26 Method of and apparatus for extending and storing boom Expired - Lifetime EP0768274B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP16995594 1994-06-28
JP169955/94 1994-06-28
JP16995594A JP3215577B2 (en) 1994-06-28 1994-06-28 Method and apparatus for extending and storing boom
PCT/JP1995/001271 WO1996000694A1 (en) 1994-06-28 1995-06-26 Method of and apparatus for extending and storing boom

Publications (3)

Publication Number Publication Date
EP0768274A1 EP0768274A1 (en) 1997-04-16
EP0768274A4 true EP0768274A4 (en) 1997-06-04
EP0768274B1 EP0768274B1 (en) 2002-03-13

Family

ID=15895953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95922760A Expired - Lifetime EP0768274B1 (en) 1994-06-28 1995-06-26 Method of and apparatus for extending and storing boom

Country Status (7)

Country Link
EP (1) EP0768274B1 (en)
JP (1) JP3215577B2 (en)
KR (1) KR100378584B1 (en)
CN (1) CN1151147A (en)
DE (1) DE69525842T2 (en)
TW (1) TW355542U (en)
WO (1) WO1996000694A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100327664B1 (en) * 1999-11-22 2002-03-12 김성수 Oil Pressure System of Container Crane for Protecting Heavy Burden
CN102381630B (en) * 2011-10-11 2013-09-04 中联重科股份有限公司 Crane and hydraulic system thereof
JP6300694B2 (en) * 2014-09-30 2018-03-28 株式会社クボタ Working machine
CN105650048B (en) * 2016-03-04 2018-09-18 柳州柳工液压件有限公司 Pilot control valve group
CN106050771B (en) * 2016-06-23 2017-12-15 徐州徐工挖掘机械有限公司 A kind of hydraulic circuit for excavator multifunctional tool
JP7326971B2 (en) * 2019-07-30 2023-08-16 株式会社タダノ Boom device and crane car

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467722A1 (en) * 1990-05-03 1992-01-22 Ppm Societe Anonyme: Lifting boom comprising a principal boom and a complementary boom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6327396A (en) * 1986-07-21 1988-02-05 株式会社タダノ Jib extended to expansion boom
JP2740035B2 (en) * 1990-03-16 1998-04-15 株式会社神戸製鋼所 Wheel crane operating device
JPH0616389A (en) * 1992-06-30 1994-01-25 Kobe Steel Ltd Jib extending/accommodating device for crane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0467722A1 (en) * 1990-05-03 1992-01-22 Ppm Societe Anonyme: Lifting boom comprising a principal boom and a complementary boom

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9600694A1 *

Also Published As

Publication number Publication date
EP0768274A1 (en) 1997-04-16
KR100378584B1 (en) 2003-06-09
WO1996000694A1 (en) 1996-01-11
TW355542U (en) 1999-04-01
CN1151147A (en) 1997-06-04
JPH0812269A (en) 1996-01-16
EP0768274B1 (en) 2002-03-13
JP3215577B2 (en) 2001-10-09
DE69525842T2 (en) 2002-11-07
DE69525842D1 (en) 2002-04-18

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