JPH0477689U - - Google Patents
Info
- Publication number
- JPH0477689U JPH0477689U JP11848390U JP11848390U JPH0477689U JP H0477689 U JPH0477689 U JP H0477689U JP 11848390 U JP11848390 U JP 11848390U JP 11848390 U JP11848390 U JP 11848390U JP H0477689 U JPH0477689 U JP H0477689U
- Authority
- JP
- Japan
- Prior art keywords
- sub
- hammer
- rod
- drill
- hammer sub
- 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
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990118483U JP2531792Y2 (ja) | 1990-11-10 | 1990-11-10 | ロータリーパーカッションドリルにおけるハンマーサブ接続部の構造 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990118483U JP2531792Y2 (ja) | 1990-11-10 | 1990-11-10 | ロータリーパーカッションドリルにおけるハンマーサブ接続部の構造 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0477689U true JPH0477689U (cs) | 1992-07-07 |
| JP2531792Y2 JP2531792Y2 (ja) | 1997-04-09 |
Family
ID=31866401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990118483U Expired - Lifetime JP2531792Y2 (ja) | 1990-11-10 | 1990-11-10 | ロータリーパーカッションドリルにおけるハンマーサブ接続部の構造 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531792Y2 (cs) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5178003A (ja) * | 1974-12-27 | 1976-07-07 | Koken Boring Machine Co | Paakatsushonnaizogataoogadoriru |
| JPS60148391U (ja) * | 1984-03-13 | 1985-10-02 | 三菱重工業株式会社 | ドリフタ |
-
1990
- 1990-11-10 JP JP1990118483U patent/JP2531792Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5178003A (ja) * | 1974-12-27 | 1976-07-07 | Koken Boring Machine Co | Paakatsushonnaizogataoogadoriru |
| JPS60148391U (ja) * | 1984-03-13 | 1985-10-02 | 三菱重工業株式会社 | ドリフタ |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2531792Y2 (ja) | 1997-04-09 |