JPS6223907Y2 - - Google Patents

Info

Publication number
JPS6223907Y2
JPS6223907Y2 JP8702481U JP8702481U JPS6223907Y2 JP S6223907 Y2 JPS6223907 Y2 JP S6223907Y2 JP 8702481 U JP8702481 U JP 8702481U JP 8702481 U JP8702481 U JP 8702481U JP S6223907 Y2 JPS6223907 Y2 JP S6223907Y2
Authority
JP
Japan
Prior art keywords
mast
locking
stopper
locking device
locking members
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.)
Expired
Application number
JP8702481U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57197587U (cs
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 filed Critical
Priority to JP8702481U priority Critical patent/JPS6223907Y2/ja
Publication of JPS57197587U publication Critical patent/JPS57197587U/ja
Application granted granted Critical
Publication of JPS6223907Y2 publication Critical patent/JPS6223907Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP8702481U 1981-06-13 1981-06-13 Expired JPS6223907Y2 (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8702481U JPS6223907Y2 (cs) 1981-06-13 1981-06-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8702481U JPS6223907Y2 (cs) 1981-06-13 1981-06-13

Publications (2)

Publication Number Publication Date
JPS57197587U JPS57197587U (cs) 1982-12-15
JPS6223907Y2 true JPS6223907Y2 (cs) 1987-06-18

Family

ID=29882236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8702481U Expired JPS6223907Y2 (cs) 1981-06-13 1981-06-13

Country Status (1)

Country Link
JP (1) JPS6223907Y2 (cs)

Also Published As

Publication number Publication date
JPS57197587U (cs) 1982-12-15

Similar Documents

Publication Publication Date Title
US3882964A (en) Mobile lever arrangement
EP0549359B1 (en) Support system
US4169338A (en) Telescopic boom
US6527131B1 (en) Crane with a telescopic boom
US2923381A (en) Telescopic derrick and locking means therefor
US3979814A (en) Pipe fitting device
JPS6223907Y2 (cs)
JP3023549B1 (ja) 梁支持用サポーター
US3863407A (en) Telescopic crane jib
CN107269236B (zh) 一种可折叠的作业机轨道装置
JPH0124197Y2 (cs)
US2347534A (en) Cylindrical coupling for hollow tubing
JPS6126479Y2 (cs)
JP2518923Y2 (ja) 移動式高所作業台
US20030141432A1 (en) Collapsible corner assembly for use in a form assembly
JPH0613040Y2 (ja) クローラ間隔拡縮装置
JPS6227556Y2 (cs)
JPS6136623Y2 (cs)
JPH0547823Y2 (cs)
JPS629430Y2 (cs)
SU1613558A1 (ru) Механизм фиксации мачты самоходной буровой установки
CN117605881A (zh) 双壁波纹管承插辅助装置及其施工方法
JPH0442400Y2 (cs)
JP3225140B2 (ja) セグメント把持装置
JPH02161013A (ja) 伸縮式リーダー