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IT1062016B - Perfezionamento nei dispositivi idraulici per l estensione ed il ritiro rapido di bracci telescopici di gru e simili - Google Patents

Perfezionamento nei dispositivi idraulici per l estensione ed il ritiro rapido di bracci telescopici di gru e simili

Info

Publication number
IT1062016B
IT1062016B IT49944/76A IT4994476A IT1062016B IT 1062016 B IT1062016 B IT 1062016B IT 49944/76 A IT49944/76 A IT 49944/76A IT 4994476 A IT4994476 A IT 4994476A IT 1062016 B IT1062016 B IT 1062016B
Authority
IT
Italy
Prior art keywords
cranes
extension
improvement
similar
telescopic arms
Prior art date
Application number
IT49944/76A
Other languages
English (en)
Original Assignee
Fmc 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 Fmc Corp filed Critical Fmc Corp
Application granted granted Critical
Publication of IT1062016B publication Critical patent/IT1062016B/it

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)
IT49944/76A 1975-08-27 1976-06-14 Perfezionamento nei dispositivi idraulici per l estensione ed il ritiro rapido di bracci telescopici di gru e simili IT1062016B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/608,111 US4011699A (en) 1975-08-27 1975-08-27 Telescopic boom quick retract hydraulic circuit

Publications (1)

Publication Number Publication Date
IT1062016B true IT1062016B (it) 1983-06-25

Family

ID=24435071

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49944/76A IT1062016B (it) 1975-08-27 1976-06-14 Perfezionamento nei dispositivi idraulici per l estensione ed il ritiro rapido di bracci telescopici di gru e simili

Country Status (5)

Country Link
US (1) US4011699A (it)
JP (1) JPS5817119B2 (it)
BR (1) BR7604151A (it)
CA (1) CA1045586A (it)
IT (1) IT1062016B (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352434A (en) * 1980-05-01 1982-10-05 Fmc Corporation Pendant supported hydraulic extensible boom
JPH0696432B2 (ja) * 1983-06-14 1994-11-30 株式会社加藤製作所 伸縮ブームの油圧ホース巻取リール制御装置
JPS61273914A (ja) * 1985-05-29 1986-12-04 Kobe Kikai Kk 無端ゴムベルトの加硫装置
DE8607727U1 (de) * 1986-03-20 1986-05-22 Hoesch Maschinenfabrik Deutschland Ag, 4600 Dortmund Vorrichtung zum Herstellen von gepreßten Formteilen od. dgl.
JPH01119319U (it) * 1988-02-08 1989-08-11
US5927520A (en) * 1995-10-06 1999-07-27 Kidde Industries, Inc. Electro-hydraulic operating system for extensible boom crane
US5695082A (en) * 1996-04-08 1997-12-09 Pioneer Engineering Crane having a readily removable outer boom section
US6029559A (en) * 1998-04-06 2000-02-29 Grove U.S. L.L.C. Telescoping system with multiple single-stage telescopic cylinders
US20090019794A1 (en) * 2006-03-30 2009-01-22 Oscar Centelles Vilalta Device for collapsing towers in movable structures
JP5653197B2 (ja) * 2010-12-07 2015-01-14 株式会社タダノ クレーン装置
CN102788060B (zh) * 2012-08-27 2015-09-16 徐州重型机械有限公司 单缸插销式起重机及其伸缩油缸、伸缩油缸的缸头
US9593460B2 (en) * 2012-09-21 2017-03-14 Harnischfeger Technologies, Inc. Fluid conveyance system for industrial machine
AU2013245549B2 (en) 2012-10-19 2017-05-25 Joy Global Surface Mining Inc Conduit support system
CA3123283C (en) * 2013-06-28 2023-08-29 Joy Global Surface Mining Inc Reel system within boom
US10183847B2 (en) * 2015-03-31 2019-01-22 Manitowoc Crane Companies, Llc Cylinder retention device
IT201800004537A1 (it) * 2018-04-16 2019-10-16 Piattaforma aerea
CN112591633B (zh) * 2020-12-23 2023-05-09 徐州重型机械有限公司 一种绳排式伸缩臂及其性能优化方法和起重机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2938351A (en) * 1959-05-14 1960-05-31 Bickerstaff Inc Fluid pressure balancing valve
US3481489A (en) * 1967-12-05 1969-12-02 Robert E Stauffer Means for extending and retracting boom sections of a crane
US3841494A (en) * 1968-12-04 1974-10-15 Fmc Corp Sequenced crane boom
US3609974A (en) * 1969-06-05 1971-10-05 Pettibone Corp Telescopic boom with movement proportioned by cylinders in series
US3620579A (en) * 1969-06-13 1971-11-16 American Hoist & Derrick Co Extensible boom assembly
US3610433A (en) * 1970-05-07 1971-10-05 Baker Equipment Eng Co Hydraulically operable extendable boom

Also Published As

Publication number Publication date
JPS5227154A (en) 1977-03-01
CA1045586A (en) 1979-01-02
JPS5817119B2 (ja) 1983-04-05
US4011699A (en) 1977-03-15
BR7604151A (pt) 1977-07-26

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