JPH02132790U - - Google Patents
Info
- Publication number
- JPH02132790U JPH02132790U JP3977789U JP3977789U JPH02132790U JP H02132790 U JPH02132790 U JP H02132790U JP 3977789 U JP3977789 U JP 3977789U JP 3977789 U JP3977789 U JP 3977789U JP H02132790 U JPH02132790 U JP H02132790U
- Authority
- JP
- Japan
- Prior art keywords
- kelly bar
- connecting shaft
- attached
- coaxially connected
- pit excavator
- 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 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3977789U JPH0637114Y2 (ja) | 1989-04-04 | 1989-04-04 | 竪孔掘削機のケリーバ振れ防止装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3977789U JPH0637114Y2 (ja) | 1989-04-04 | 1989-04-04 | 竪孔掘削機のケリーバ振れ防止装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02132790U true JPH02132790U (en]) | 1990-11-05 |
| JPH0637114Y2 JPH0637114Y2 (ja) | 1994-09-28 |
Family
ID=31548983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3977789U Expired - Lifetime JPH0637114Y2 (ja) | 1989-04-04 | 1989-04-04 | 竪孔掘削機のケリーバ振れ防止装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637114Y2 (en]) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0499783U (en]) * | 1991-01-24 | 1992-08-28 | ||
| JPH0499787U (en]) * | 1991-01-28 | 1992-08-28 | ||
| JP2003531979A (ja) * | 2000-04-20 | 2003-10-28 | ソンデックス リミテッド | ワイヤラインツールのためのセントラライザ |
| JP2010281145A (ja) * | 2009-06-05 | 2010-12-16 | Nippon Steel & Sumikin Metal Products Co Ltd | 立坑内壁調査用計測器の固定装置 |
-
1989
- 1989-04-04 JP JP3977789U patent/JPH0637114Y2/ja not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0499783U (en]) * | 1991-01-24 | 1992-08-28 | ||
| JPH0499787U (en]) * | 1991-01-28 | 1992-08-28 | ||
| JP2003531979A (ja) * | 2000-04-20 | 2003-10-28 | ソンデックス リミテッド | ワイヤラインツールのためのセントラライザ |
| JP2010281145A (ja) * | 2009-06-05 | 2010-12-16 | Nippon Steel & Sumikin Metal Products Co Ltd | 立坑内壁調査用計測器の固定装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0637114Y2 (ja) | 1994-09-28 |