JPS632879B2 - - Google Patents
Info
- Publication number
- JPS632879B2 JPS632879B2 JP2659581A JP2659581A JPS632879B2 JP S632879 B2 JPS632879 B2 JP S632879B2 JP 2659581 A JP2659581 A JP 2659581A JP 2659581 A JP2659581 A JP 2659581A JP S632879 B2 JPS632879 B2 JP S632879B2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- locking
- arm
- roller
- abutment
- 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
Links
- 230000013011 mating Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 24
- 230000008602 contraction Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2659581A JPS57141392A (en) | 1981-02-24 | 1981-02-24 | Expansion device for multistage boom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2659581A JPS57141392A (en) | 1981-02-24 | 1981-02-24 | Expansion device for multistage boom |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57141392A JPS57141392A (en) | 1982-09-01 |
JPS632879B2 true JPS632879B2 (enrdf_load_stackoverflow) | 1988-01-21 |
Family
ID=12197877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2659581A Granted JPS57141392A (en) | 1981-02-24 | 1981-02-24 | Expansion device for multistage boom |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57141392A (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0636471A1 (en) | 1993-07-28 | 1995-02-01 | Asahi Glass Company Ltd. | Laminated glass and method for its production |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58127086U (ja) * | 1982-02-24 | 1983-08-29 | 新明和工業株式会社 | 多段ブ−ムにおける順次作動装置の係合装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57107396A (en) * | 1980-12-24 | 1982-07-03 | Shin Meiwa Ind Co Ltd | Successive extension working device for multistage boom |
-
1981
- 1981-02-24 JP JP2659581A patent/JPS57141392A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0636471A1 (en) | 1993-07-28 | 1995-02-01 | Asahi Glass Company Ltd. | Laminated glass and method for its production |
Also Published As
Publication number | Publication date |
---|---|
JPS57141392A (en) | 1982-09-01 |
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