JPS6332224Y2 - - Google Patents
Info
- Publication number
- JPS6332224Y2 JPS6332224Y2 JP14531283U JP14531283U JPS6332224Y2 JP S6332224 Y2 JPS6332224 Y2 JP S6332224Y2 JP 14531283 U JP14531283 U JP 14531283U JP 14531283 U JP14531283 U JP 14531283U JP S6332224 Y2 JPS6332224 Y2 JP S6332224Y2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- hole drilling
- drilling machine
- groove
- retainer
- 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 21
- 238000005422 blasting Methods 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14531283U JPS6053893U (ja) | 1983-09-20 | 1983-09-20 | 続孔穿孔機のロツド支持機構 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14531283U JPS6053893U (ja) | 1983-09-20 | 1983-09-20 | 続孔穿孔機のロツド支持機構 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6053893U JPS6053893U (ja) | 1985-04-16 |
| JPS6332224Y2 true JPS6332224Y2 (fi) | 1988-08-29 |
Family
ID=30323785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14531283U Granted JPS6053893U (ja) | 1983-09-20 | 1983-09-20 | 続孔穿孔機のロツド支持機構 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053893U (fi) |
-
1983
- 1983-09-20 JP JP14531283U patent/JPS6053893U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6053893U (ja) | 1985-04-16 |
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