JPH0428958Y2 - - Google Patents
Info
- Publication number
- JPH0428958Y2 JPH0428958Y2 JP1986004846U JP484686U JPH0428958Y2 JP H0428958 Y2 JPH0428958 Y2 JP H0428958Y2 JP 1986004846 U JP1986004846 U JP 1986004846U JP 484686 U JP484686 U JP 484686U JP H0428958 Y2 JPH0428958 Y2 JP H0428958Y2
- Authority
- JP
- Japan
- Prior art keywords
- telescopic
- drive device
- rotary drive
- kelly
- bar
- 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
- 238000009412 basement excavation Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986004846U JPH0428958Y2 (US07922777-20110412-C00004.png) | 1986-01-17 | 1986-01-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986004846U JPH0428958Y2 (US07922777-20110412-C00004.png) | 1986-01-17 | 1986-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62120594U JPS62120594U (US07922777-20110412-C00004.png) | 1987-07-31 |
| JPH0428958Y2 true JPH0428958Y2 (US07922777-20110412-C00004.png) | 1992-07-14 |
Family
ID=30785888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986004846U Expired JPH0428958Y2 (US07922777-20110412-C00004.png) | 1986-01-17 | 1986-01-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428958Y2 (US07922777-20110412-C00004.png) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60195390U (ja) * | 1984-05-30 | 1985-12-26 | 日本車輌製造株式会社 | アースドリル |
-
1986
- 1986-01-17 JP JP1986004846U patent/JPH0428958Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62120594U (US07922777-20110412-C00004.png) | 1987-07-31 |
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