JPS6139019Y2 - - Google Patents
Info
- Publication number
- JPS6139019Y2 JPS6139019Y2 JP2259482U JP2259482U JPS6139019Y2 JP S6139019 Y2 JPS6139019 Y2 JP S6139019Y2 JP 2259482 U JP2259482 U JP 2259482U JP 2259482 U JP2259482 U JP 2259482U JP S6139019 Y2 JPS6139019 Y2 JP S6139019Y2
- Authority
- JP
- Japan
- Prior art keywords
- guide shell
- boom
- spindle
- angle
- drilling
- 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 26
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000008531 maintenance mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004080 punching Methods 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 |
|---|---|---|---|
| JP2259482U JPS58129985U (ja) | 1982-02-19 | 1982-02-19 | 穿孔装置用ブ−ムのガイドシエル差し角規制装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2259482U JPS58129985U (ja) | 1982-02-19 | 1982-02-19 | 穿孔装置用ブ−ムのガイドシエル差し角規制装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58129985U JPS58129985U (ja) | 1983-09-02 |
| JPS6139019Y2 true JPS6139019Y2 (enExample) | 1986-11-10 |
Family
ID=30034668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2259482U Granted JPS58129985U (ja) | 1982-02-19 | 1982-02-19 | 穿孔装置用ブ−ムのガイドシエル差し角規制装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58129985U (enExample) |
-
1982
- 1982-02-19 JP JP2259482U patent/JPS58129985U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58129985U (ja) | 1983-09-02 |
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