JPH0413110Y2 - - Google Patents
Info
- Publication number
- JPH0413110Y2 JPH0413110Y2 JP8400187U JP8400187U JPH0413110Y2 JP H0413110 Y2 JPH0413110 Y2 JP H0413110Y2 JP 8400187 U JP8400187 U JP 8400187U JP 8400187 U JP8400187 U JP 8400187U JP H0413110 Y2 JPH0413110 Y2 JP H0413110Y2
- Authority
- JP
- Japan
- Prior art keywords
- chisel
- drilling
- hole
- main body
- rock drill
- 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 38
- 239000011435 rock Substances 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8400187U JPH0413110Y2 (en)van) | 1987-05-30 | 1987-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8400187U JPH0413110Y2 (en)van) | 1987-05-30 | 1987-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63193671U JPS63193671U (en)van) | 1988-12-13 |
| JPH0413110Y2 true JPH0413110Y2 (en)van) | 1992-03-27 |
Family
ID=30938104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8400187U Expired JPH0413110Y2 (en)van) | 1987-05-30 | 1987-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413110Y2 (en)van) |
-
1987
- 1987-05-30 JP JP8400187U patent/JPH0413110Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63193671U (en)van) | 1988-12-13 |
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