JPS6141834Y2 - - Google Patents
Info
- Publication number
- JPS6141834Y2 JPS6141834Y2 JP18201981U JP18201981U JPS6141834Y2 JP S6141834 Y2 JPS6141834 Y2 JP S6141834Y2 JP 18201981 U JP18201981 U JP 18201981U JP 18201981 U JP18201981 U JP 18201981U JP S6141834 Y2 JPS6141834 Y2 JP S6141834Y2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- bit
- groove
- protrusion
- hole
- 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
- 238000005553 drilling Methods 0.000 claims description 39
- 239000011435 rock Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18201981U JPS5885696U (ja) | 1981-12-07 | 1981-12-07 | さく岩機のさく孔装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18201981U JPS5885696U (ja) | 1981-12-07 | 1981-12-07 | さく岩機のさく孔装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5885696U JPS5885696U (ja) | 1983-06-10 |
| JPS6141834Y2 true JPS6141834Y2 (en:Method) | 1986-11-27 |
Family
ID=29980010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18201981U Granted JPS5885696U (ja) | 1981-12-07 | 1981-12-07 | さく岩機のさく孔装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5885696U (en:Method) |
-
1981
- 1981-12-07 JP JP18201981U patent/JPS5885696U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5885696U (ja) | 1983-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6142719A (en) | Self-drilling screw | |
| EP3184729A1 (en) | Excavation tool | |
| JPH11170246A (ja) | 孔あけ用工具 | |
| JPS6141834Y2 (en:Method) | ||
| JPH11197970A (ja) | 工作機械における内張りチャック | |
| JPH09103906A (ja) | 円筒状穿孔工具 | |
| JP2018119345A (ja) | 掘削工具 | |
| JP2936143B2 (ja) | 穿孔ビット | |
| JPS639674Y2 (en:Method) | ||
| EP1214179B1 (en) | Hole-forming tool | |
| JP2000080879A (ja) | 地山削孔用資材及びそれを用いた水抜き工法 | |
| JPS6239182Y2 (en:Method) | ||
| KR20200078160A (ko) | 앵커볼트 타격용 비트 | |
| SU926218A1 (ru) | Бурова коронка | |
| JPS6136620Y2 (en:Method) | ||
| JP2001032664A (ja) | さく孔装置 | |
| JP2001287173A (ja) | 切断されたねじの残存部除去補助具 | |
| JPH0131432Y2 (en:Method) | ||
| KR200333566Y1 (ko) | 인서트 드릴 | |
| JPS6118636B2 (en:Method) | ||
| JP2578078B2 (ja) | 穿孔ビット | |
| GB2307930A (en) | Drill bit | |
| JPH02308088A (ja) | さく孔装置 | |
| JPH0433358B2 (en:Method) | ||
| JPH07301084A (ja) | さく岩機のロッドシステム |