JPS62114993U - - Google Patents
Info
- Publication number
- JPS62114993U JPS62114993U JP20428585U JP20428585U JPS62114993U JP S62114993 U JPS62114993 U JP S62114993U JP 20428585 U JP20428585 U JP 20428585U JP 20428585 U JP20428585 U JP 20428585U JP S62114993 U JPS62114993 U JP S62114993U
- Authority
- JP
- Japan
- Prior art keywords
- drilling machine
- guide rail
- reverse rotation
- tip
- rotation motor
- 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
- 238000005553 drilling Methods 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Landscapes
- Shovels (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20428585U JPH0346042Y2 (cs) | 1985-12-28 | 1985-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20428585U JPH0346042Y2 (cs) | 1985-12-28 | 1985-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62114993U true JPS62114993U (cs) | 1987-07-22 |
| JPH0346042Y2 JPH0346042Y2 (cs) | 1991-09-27 |
Family
ID=31170301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20428585U Expired JPH0346042Y2 (cs) | 1985-12-28 | 1985-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0346042Y2 (cs) |
-
1985
- 1985-12-28 JP JP20428585U patent/JPH0346042Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0346042Y2 (cs) | 1991-09-27 |
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