JPS4955048A - - Google Patents

Info

Publication number
JPS4955048A
JPS4955048A JP5479273A JP5479273A JPS4955048A JP S4955048 A JPS4955048 A JP S4955048A JP 5479273 A JP5479273 A JP 5479273A JP 5479273 A JP5479273 A JP 5479273A JP S4955048 A JPS4955048 A JP S4955048A
Authority
JP
Japan
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
JP5479273A
Other languages
Japanese (ja)
Other versions
JPS5434983B2 (nl
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 filed Critical
Publication of JPS4955048A publication Critical patent/JPS4955048A/ja
Publication of JPS5434983B2 publication Critical patent/JPS5434983B2/ja
Expired 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
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
JP5479273A 1972-05-18 1973-05-18 Expired JPS5434983B2 (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25466572A 1972-05-18 1972-05-18

Publications (2)

Publication Number Publication Date
JPS4955048A true JPS4955048A (nl) 1974-05-28
JPS5434983B2 JPS5434983B2 (nl) 1979-10-30

Family

ID=22965115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5479273A Expired JPS5434983B2 (nl) 1972-05-18 1973-05-18

Country Status (4)

Country Link
US (1) US3795321A (nl)
JP (1) JPS5434983B2 (nl)
BR (1) BR7303551D0 (nl)
DE (1) DE2325117A1 (nl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117972U (nl) * 1974-07-26 1976-02-09
JPS567896A (en) * 1979-06-29 1981-01-27 Harnischfeger Gmbh Telescope type jib crane* particularly mobile one

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2638185C3 (de) * 1976-08-25 1979-10-11 O & K Orenstein & Koppel Ag, 1000 Berlin Teleskopausleger für fahrbare Krane
US4396126A (en) * 1980-11-24 1983-08-02 Harnischfeger Corporation Telescoping crane boom
US4514939A (en) * 1981-08-17 1985-05-07 Fmc Corporation Extensible boom with manual section stored in base
US4592474A (en) * 1981-08-17 1986-06-03 Fmc Corporation Coupling and latching mechanism for extensible boom
US4492311A (en) * 1981-08-17 1985-01-08 Fmc Corporation Coupling and latching mechanism for extensible boom
US4585132A (en) * 1984-09-10 1986-04-29 Fmc Corporation Extensible boom with manual section stored in base
US4688690A (en) * 1986-03-07 1987-08-25 Harnischfeger Corporation Method and apparatus for extending fly section of crane boom
US4927315A (en) * 1989-03-06 1990-05-22 Chevron, Inc. Vehicle lifting and towing apparatus
US4986721A (en) * 1989-08-17 1991-01-22 Eagle-Picher Industries, Inc. Extendable boom fork lift vehicle
US5865327A (en) 1989-10-24 1999-02-02 J & R Engineering Co., Inc. Hydraulic boom for gantry and the like
US6685038B1 (en) 1999-10-15 2004-02-03 J & R Engineering Company, Inc. Extendible boom with locking mechanism having equalizer arrangement
US10894699B2 (en) * 2017-08-31 2021-01-19 Stellar Industries, Inc. Lightweight crane
JP6635244B1 (ja) * 2019-03-14 2020-01-22 株式会社タダノ 伸縮装置及びクレーン

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4427626Y1 (nl) * 1966-03-30 1969-11-18
JPS4518821Y1 (nl) * 1967-03-03 1970-07-31

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217041B (de) * 1964-10-01 1966-05-18 Demag Zug Gmbh Teleskopausleger mit einem innerhalb des Auslegers angeordneten Kraftgeraet
DE1268804B (de) * 1965-09-17 1968-05-22 Beteiligungs & Patentverw Gmbh Teleskopausleger
US3386594A (en) * 1967-05-08 1968-06-04 Grove Mfg Company Method of and apparatus for extending a telescopic crane boom
US3591016A (en) * 1967-07-19 1971-07-06 Tadano Tekkosho Kk Boom extension means having more than three boom extension members for use with a truck crane
CH476625A (de) * 1967-12-22 1969-08-15 Warner Swasey Co Teleskopischer hydraulisch ausfahrbarer Ladebaum für einen Kran, und Verfahren zum Betrieb des Ladebaumes
US3633460A (en) * 1968-12-13 1972-01-11 Tadano Tekkosho Kk Extension means of a multistage extensible boom

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4427626Y1 (nl) * 1966-03-30 1969-11-18
JPS4518821Y1 (nl) * 1967-03-03 1970-07-31

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117972U (nl) * 1974-07-26 1976-02-09
JPS5624710Y2 (nl) * 1974-07-26 1981-06-10
JPS567896A (en) * 1979-06-29 1981-01-27 Harnischfeger Gmbh Telescope type jib crane* particularly mobile one

Also Published As

Publication number Publication date
BR7303551D0 (pt) 1974-06-27
DE2325117A1 (de) 1973-12-06
US3795321A (en) 1974-03-05
JPS5434983B2 (nl) 1979-10-30

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