JPS5288957A - Boom derrick crane - Google Patents

Boom derrick crane

Info

Publication number
JPS5288957A
JPS5288957A JP515076A JP515076A JPS5288957A JP S5288957 A JPS5288957 A JP S5288957A JP 515076 A JP515076 A JP 515076A JP 515076 A JP515076 A JP 515076A JP S5288957 A JPS5288957 A JP S5288957A
Authority
JP
Japan
Prior art keywords
derrick crane
boom
boom derrick
wieght
lookout
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
JP515076A
Other languages
Japanese (ja)
Inventor
Yoshio Ichikawa
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.)
IHI Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co 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 Ishikawajima Harima Heavy Industries Co Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP515076A priority Critical patent/JPS5288957A/en
Publication of JPS5288957A publication Critical patent/JPS5288957A/en
Pending legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)

Abstract

PURPOSE: To reduce the wieght of boom derrick crane and improve the lookout in navigation by the provision of horizontal swing arms provided at the opposite ends of a stationary arm secured to the top of a center frame.
COPYRIGHT: (C)1977,JPO&Japio
JP515076A 1976-01-20 1976-01-20 Boom derrick crane Pending JPS5288957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP515076A JPS5288957A (en) 1976-01-20 1976-01-20 Boom derrick crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP515076A JPS5288957A (en) 1976-01-20 1976-01-20 Boom derrick crane

Publications (1)

Publication Number Publication Date
JPS5288957A true JPS5288957A (en) 1977-07-26

Family

ID=11603240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP515076A Pending JPS5288957A (en) 1976-01-20 1976-01-20 Boom derrick crane

Country Status (1)

Country Link
JP (1) JPS5288957A (en)

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