JPS6294187U - - Google Patents
Info
- Publication number
- JPS6294187U JPS6294187U JP18582185U JP18582185U JPS6294187U JP S6294187 U JPS6294187 U JP S6294187U JP 18582185 U JP18582185 U JP 18582185U JP 18582185 U JP18582185 U JP 18582185U JP S6294187 U JPS6294187 U JP S6294187U
- Authority
- JP
- Japan
- Prior art keywords
- expansion
- piece
- wing piece
- rotating cam
- opposing
- 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
- 230000008602 contraction Effects 0.000 claims 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985185821U JPH0227031Y2 (enExample) | 1985-12-02 | 1985-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985185821U JPH0227031Y2 (enExample) | 1985-12-02 | 1985-12-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6294187U true JPS6294187U (enExample) | 1987-06-16 |
| JPH0227031Y2 JPH0227031Y2 (enExample) | 1990-07-23 |
Family
ID=31134808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985185821U Expired JPH0227031Y2 (enExample) | 1985-12-02 | 1985-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0227031Y2 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006200285A (ja) * | 2005-01-24 | 2006-08-03 | Sanwa Kizai Co Ltd | 掘削作業ロッドの拡大ヘッド |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55159285U (enExample) * | 1979-05-02 | 1980-11-15 | ||
| JPS5817835U (ja) * | 1981-07-27 | 1983-02-03 | 象印マホービン株式会社 | コ−ヒ−メ−カ−のドリップパイプ |
-
1985
- 1985-12-02 JP JP1985185821U patent/JPH0227031Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55159285U (enExample) * | 1979-05-02 | 1980-11-15 | ||
| JPS5817835U (ja) * | 1981-07-27 | 1983-02-03 | 象印マホービン株式会社 | コ−ヒ−メ−カ−のドリップパイプ |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006200285A (ja) * | 2005-01-24 | 2006-08-03 | Sanwa Kizai Co Ltd | 掘削作業ロッドの拡大ヘッド |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0227031Y2 (enExample) | 1990-07-23 |