JPS6220547Y2 - - Google Patents
Info
- Publication number
- JPS6220547Y2 JPS6220547Y2 JP12464680U JP12464680U JPS6220547Y2 JP S6220547 Y2 JPS6220547 Y2 JP S6220547Y2 JP 12464680 U JP12464680 U JP 12464680U JP 12464680 U JP12464680 U JP 12464680U JP S6220547 Y2 JPS6220547 Y2 JP S6220547Y2
- Authority
- JP
- Japan
- Prior art keywords
- drill
- ground
- hydraulic motor
- drills
- flow rate
- 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 18
- 230000001105 regulatory effect Effects 0.000 description 10
- 239000002689 soil Substances 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 7
- 244000025254 Cannabis sativa Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- Soil Working Implements (AREA)
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12464680U JPS6220547Y2 (de) | 1980-09-02 | 1980-09-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12464680U JPS6220547Y2 (de) | 1980-09-02 | 1980-09-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5751786U JPS5751786U (de) | 1982-03-25 |
| JPS6220547Y2 true JPS6220547Y2 (de) | 1987-05-25 |
Family
ID=29485172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12464680U Expired JPS6220547Y2 (de) | 1980-09-02 | 1980-09-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6220547Y2 (de) |
-
1980
- 1980-09-02 JP JP12464680U patent/JPS6220547Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5751786U (de) | 1982-03-25 |
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