JPS51149652A - Extention apparatus for th ree stage telescopic beam - Google Patents

Extention apparatus for th ree stage telescopic beam

Info

Publication number
JPS51149652A
JPS51149652A JP7400275A JP7400275A JPS51149652A JP S51149652 A JPS51149652 A JP S51149652A JP 7400275 A JP7400275 A JP 7400275A JP 7400275 A JP7400275 A JP 7400275A JP S51149652 A JPS51149652 A JP S51149652A
Authority
JP
Japan
Prior art keywords
extention
ree
stage telescopic
telescopic beam
stage
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
JP7400275A
Other languages
Japanese (ja)
Inventor
Taizo Kondo
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.)
Tadano Ltd
Original Assignee
Tadano Iron Works 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 Tadano Iron Works Co Ltd filed Critical Tadano Iron Works Co Ltd
Priority to JP7400275A priority Critical patent/JPS51149652A/en
Publication of JPS51149652A publication Critical patent/JPS51149652A/en
Pending legal-status Critical Current

Links

Landscapes

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Abstract

PURPOSE: Three stage telescopic beam is operated without many hydraulic cylinders, to attain low cost and light weight beam.
COPYRIGHT: (C)1976,JPO&Japio
JP7400275A 1975-06-17 1975-06-17 Extention apparatus for th ree stage telescopic beam Pending JPS51149652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7400275A JPS51149652A (en) 1975-06-17 1975-06-17 Extention apparatus for th ree stage telescopic beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7400275A JPS51149652A (en) 1975-06-17 1975-06-17 Extention apparatus for th ree stage telescopic beam

Publications (1)

Publication Number Publication Date
JPS51149652A true JPS51149652A (en) 1976-12-22

Family

ID=13534420

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7400275A Pending JPS51149652A (en) 1975-06-17 1975-06-17 Extention apparatus for th ree stage telescopic beam

Country Status (1)

Country Link
JP (1) JPS51149652A (en)

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