JPS5273455A - System to set up and back auxiliary boom for crane with retractable bo om - Google Patents

System to set up and back auxiliary boom for crane with retractable bo om

Info

Publication number
JPS5273455A
JPS5273455A JP14878375A JP14878375A JPS5273455A JP S5273455 A JPS5273455 A JP S5273455A JP 14878375 A JP14878375 A JP 14878375A JP 14878375 A JP14878375 A JP 14878375A JP S5273455 A JPS5273455 A JP S5273455A
Authority
JP
Japan
Prior art keywords
retractable
crane
auxiliary boom
boom
back auxiliary
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
JP14878375A
Other languages
Japanese (ja)
Other versions
JPS5443786B2 (en
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 JP14878375A priority Critical patent/JPS5273455A/en
Publication of JPS5273455A publication Critical patent/JPS5273455A/en
Publication of JPS5443786B2 publication Critical patent/JPS5443786B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)

Abstract

PURPOSE: To set up and extend an auxiliary boom easily by releasing the fastener of the auxiliary boom with absorbing wire movement arised at the initial expanding of tip boom by means of expanding and contracting boom.
COPYRIGHT: (C)1977,JPO&Japio
JP14878375A 1975-12-12 1975-12-12 System to set up and back auxiliary boom for crane with retractable bo om Granted JPS5273455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14878375A JPS5273455A (en) 1975-12-12 1975-12-12 System to set up and back auxiliary boom for crane with retractable bo om

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14878375A JPS5273455A (en) 1975-12-12 1975-12-12 System to set up and back auxiliary boom for crane with retractable bo om

Publications (2)

Publication Number Publication Date
JPS5273455A true JPS5273455A (en) 1977-06-20
JPS5443786B2 JPS5443786B2 (en) 1979-12-21

Family

ID=15460568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14878375A Granted JPS5273455A (en) 1975-12-12 1975-12-12 System to set up and back auxiliary boom for crane with retractable bo om

Country Status (1)

Country Link
JP (1) JPS5273455A (en)

Also Published As

Publication number Publication date
JPS5443786B2 (en) 1979-12-21

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