JPS57107396A - Successive extension working device for multistage boom - Google Patents

Successive extension working device for multistage boom

Info

Publication number
JPS57107396A
JPS57107396A JP18491180A JP18491180A JPS57107396A JP S57107396 A JPS57107396 A JP S57107396A JP 18491180 A JP18491180 A JP 18491180A JP 18491180 A JP18491180 A JP 18491180A JP S57107396 A JPS57107396 A JP S57107396A
Authority
JP
Japan
Prior art keywords
working device
extension working
multistage boom
successive extension
successive
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
JP18491180A
Other languages
Japanese (ja)
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 JP18491180A priority Critical patent/JPS57107396A/en
Publication of JPS57107396A publication Critical patent/JPS57107396A/en
Pending legal-status Critical Current

Links

Landscapes

  • Jib Cranes (AREA)
JP18491180A 1980-12-24 1980-12-24 Successive extension working device for multistage boom Pending JPS57107396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18491180A JPS57107396A (en) 1980-12-24 1980-12-24 Successive extension working device for multistage boom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18491180A JPS57107396A (en) 1980-12-24 1980-12-24 Successive extension working device for multistage boom

Publications (1)

Publication Number Publication Date
JPS57107396A true JPS57107396A (en) 1982-07-03

Family

ID=16161483

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18491180A Pending JPS57107396A (en) 1980-12-24 1980-12-24 Successive extension working device for multistage boom

Country Status (1)

Country Link
JP (1) JPS57107396A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141392A (en) * 1981-02-24 1982-09-01 Shin Meiwa Ind Co Ltd Expansion device for multistage boom
JPS57166289A (en) * 1982-02-26 1982-10-13 Shin Meiwa Ind Co Ltd Successive operating device for multistage boom
JPS58127086U (en) * 1982-02-24 1983-08-29 新明和工業株式会社 Engagement device for sequential actuation device in multistage boom

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57141392A (en) * 1981-02-24 1982-09-01 Shin Meiwa Ind Co Ltd Expansion device for multistage boom
JPS58127086U (en) * 1982-02-24 1983-08-29 新明和工業株式会社 Engagement device for sequential actuation device in multistage boom
JPS6143833Y2 (en) * 1982-02-24 1986-12-10
JPS57166289A (en) * 1982-02-26 1982-10-13 Shin Meiwa Ind Co Ltd Successive operating device for multistage boom

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