JPS5751009A - Hydraulic cylinder device for telescopic boom - Google Patents

Hydraulic cylinder device for telescopic boom

Info

Publication number
JPS5751009A
JPS5751009A JP12562080A JP12562080A JPS5751009A JP S5751009 A JPS5751009 A JP S5751009A JP 12562080 A JP12562080 A JP 12562080A JP 12562080 A JP12562080 A JP 12562080A JP S5751009 A JPS5751009 A JP S5751009A
Authority
JP
Japan
Prior art keywords
cylinders
boom
change
over valves
telescopic 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
JP12562080A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6356159B2 (enExample
Inventor
Masaaki Inaoka
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.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry 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 Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP12562080A priority Critical patent/JPS5751009A/ja
Publication of JPS5751009A publication Critical patent/JPS5751009A/ja
Publication of JPS6356159B2 publication Critical patent/JPS6356159B2/ja
Granted 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)
  • Fluid-Pressure Circuits (AREA)
  • Jib Cranes (AREA)
  • Actuator (AREA)
JP12562080A 1980-09-09 1980-09-09 Hydraulic cylinder device for telescopic boom Granted JPS5751009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12562080A JPS5751009A (en) 1980-09-09 1980-09-09 Hydraulic cylinder device for telescopic boom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12562080A JPS5751009A (en) 1980-09-09 1980-09-09 Hydraulic cylinder device for telescopic boom

Publications (2)

Publication Number Publication Date
JPS5751009A true JPS5751009A (en) 1982-03-25
JPS6356159B2 JPS6356159B2 (enExample) 1988-11-07

Family

ID=14914576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12562080A Granted JPS5751009A (en) 1980-09-09 1980-09-09 Hydraulic cylinder device for telescopic boom

Country Status (1)

Country Link
JP (1) JPS5751009A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06205860A (ja) * 1993-12-27 1994-07-26 Daiwa Golf Kk ゴルフクラブシャフトの製造方法
CN109973463A (zh) * 2019-04-22 2019-07-05 韶关市起重机厂有限责任公司 一种能可靠顺序伸缩的油缸、多油缸顺序伸缩机构及工程机械
CN111689408A (zh) * 2020-05-25 2020-09-22 中联重科股份有限公司 过渡臂节、双臂连接组件、双臂臂架及轻型臂架

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4737802U (enExample) * 1971-05-21 1972-12-26
JPS5139850A (ja) * 1974-09-28 1976-04-03 Unic Corp Tadanshinshukukureenbuumutoyo no tadanjunjisadoshirindasochi
JPS53120062U (enExample) * 1977-03-01 1978-09-25
JPS5557502U (enExample) * 1978-10-15 1980-04-18

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4737802U (enExample) * 1971-05-21 1972-12-26
JPS5139850A (ja) * 1974-09-28 1976-04-03 Unic Corp Tadanshinshukukureenbuumutoyo no tadanjunjisadoshirindasochi
JPS53120062U (enExample) * 1977-03-01 1978-09-25
JPS5557502U (enExample) * 1978-10-15 1980-04-18

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06205860A (ja) * 1993-12-27 1994-07-26 Daiwa Golf Kk ゴルフクラブシャフトの製造方法
CN109973463A (zh) * 2019-04-22 2019-07-05 韶关市起重机厂有限责任公司 一种能可靠顺序伸缩的油缸、多油缸顺序伸缩机构及工程机械
CN111689408A (zh) * 2020-05-25 2020-09-22 中联重科股份有限公司 过渡臂节、双臂连接组件、双臂臂架及轻型臂架

Also Published As

Publication number Publication date
JPS6356159B2 (enExample) 1988-11-07

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