JPH0426550Y2 - - Google Patents
Info
- Publication number
- JPH0426550Y2 JPH0426550Y2 JP1214086U JP1214086U JPH0426550Y2 JP H0426550 Y2 JPH0426550 Y2 JP H0426550Y2 JP 1214086 U JP1214086 U JP 1214086U JP 1214086 U JP1214086 U JP 1214086U JP H0426550 Y2 JPH0426550 Y2 JP H0426550Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- guide
- auger
- base
- tip
- 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
- 230000008602 contraction Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 11
- 239000003921 oil Substances 0.000 description 56
- 210000000078 claw Anatomy 0.000 description 12
- 238000005553 drilling Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1214086U JPH0426550Y2 (en]) | 1986-01-29 | 1986-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1214086U JPH0426550Y2 (en]) | 1986-01-29 | 1986-01-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62125191U JPS62125191U (en]) | 1987-08-08 |
| JPH0426550Y2 true JPH0426550Y2 (en]) | 1992-06-25 |
Family
ID=30799995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1214086U Expired JPH0426550Y2 (en]) | 1986-01-29 | 1986-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426550Y2 (en]) |
-
1986
- 1986-01-29 JP JP1214086U patent/JPH0426550Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62125191U (en]) | 1987-08-08 |
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