JPH0316949Y2 - - Google Patents
Info
- Publication number
- JPH0316949Y2 JPH0316949Y2 JP1214186U JP1214186U JPH0316949Y2 JP H0316949 Y2 JPH0316949 Y2 JP H0316949Y2 JP 1214186 U JP1214186 U JP 1214186U JP 1214186 U JP1214186 U JP 1214186U JP H0316949 Y2 JPH0316949 Y2 JP H0316949Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- auger
- base
- locking
- support
- 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
- 238000005553 drilling Methods 0.000 claims description 14
- 210000000078 claw Anatomy 0.000 description 26
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1214186U JPH0316949Y2 (fr) | 1986-01-29 | 1986-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1214186U JPH0316949Y2 (fr) | 1986-01-29 | 1986-01-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62125192U JPS62125192U (fr) | 1987-08-08 |
| JPH0316949Y2 true JPH0316949Y2 (fr) | 1991-04-10 |
Family
ID=30799997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1214186U Expired JPH0316949Y2 (fr) | 1986-01-29 | 1986-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0316949Y2 (fr) |
-
1986
- 1986-01-29 JP JP1214186U patent/JPH0316949Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62125192U (fr) | 1987-08-08 |
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