JPH0242994U - - Google Patents
Info
- Publication number
- JPH0242994U JPH0242994U JP12299788U JP12299788U JPH0242994U JP H0242994 U JPH0242994 U JP H0242994U JP 12299788 U JP12299788 U JP 12299788U JP 12299788 U JP12299788 U JP 12299788U JP H0242994 U JPH0242994 U JP H0242994U
- Authority
- JP
- Japan
- Prior art keywords
- rotary drive
- drive body
- engagement
- kelly rod
- strips
- 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.)
- Granted
Links
- 238000009412 basement excavation Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12299788U JPH0624467Y2 (ja) | 1988-09-19 | 1988-09-19 | 掘削機械 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12299788U JPH0624467Y2 (ja) | 1988-09-19 | 1988-09-19 | 掘削機械 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0242994U true JPH0242994U (de) | 1990-03-26 |
| JPH0624467Y2 JPH0624467Y2 (ja) | 1994-06-29 |
Family
ID=31371447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12299788U Expired - Lifetime JPH0624467Y2 (ja) | 1988-09-19 | 1988-09-19 | 掘削機械 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624467Y2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858201A (zh) * | 2010-05-06 | 2010-10-13 | 侯庆国 | 一种桩工钻机用滑移主动钻杆 |
-
1988
- 1988-09-19 JP JP12299788U patent/JPH0624467Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624467Y2 (ja) | 1994-06-29 |