JPH0513832Y2 - - Google Patents
Info
- Publication number
- JPH0513832Y2 JPH0513832Y2 JP20372885U JP20372885U JPH0513832Y2 JP H0513832 Y2 JPH0513832 Y2 JP H0513832Y2 JP 20372885 U JP20372885 U JP 20372885U JP 20372885 U JP20372885 U JP 20372885U JP H0513832 Y2 JPH0513832 Y2 JP H0513832Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- supported
- connecting member
- stopper
- swing
- 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 - Lifetime
Links
- 239000011435 rock Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20372885U JPH0513832Y2 (enrdf_load_stackoverflow) | 1985-12-28 | 1985-12-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20372885U JPH0513832Y2 (enrdf_load_stackoverflow) | 1985-12-28 | 1985-12-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62114992U JPS62114992U (enrdf_load_stackoverflow) | 1987-07-22 |
JPH0513832Y2 true JPH0513832Y2 (enrdf_load_stackoverflow) | 1993-04-13 |
Family
ID=31169329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20372885U Expired - Lifetime JPH0513832Y2 (enrdf_load_stackoverflow) | 1985-12-28 | 1985-12-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0513832Y2 (enrdf_load_stackoverflow) |
-
1985
- 1985-12-28 JP JP20372885U patent/JPH0513832Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS62114992U (enrdf_load_stackoverflow) | 1987-07-22 |
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