JPH061667Y2 - さく孔機の角度保持装置 - Google Patents
さく孔機の角度保持装置Info
- Publication number
- JPH061667Y2 JPH061667Y2 JP1311587U JP1311587U JPH061667Y2 JP H061667 Y2 JPH061667 Y2 JP H061667Y2 JP 1311587 U JP1311587 U JP 1311587U JP 1311587 U JP1311587 U JP 1311587U JP H061667 Y2 JPH061667 Y2 JP H061667Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- angle
- guide shell
- detector
- punching machine
- 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 - Lifetime
Links
- 238000004080 punching Methods 0.000 title claims description 16
- 238000005553 drilling Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock 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 |
---|---|---|---|
JP1311587U JPH061667Y2 (ja) | 1987-01-31 | 1987-01-31 | さく孔機の角度保持装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1311587U JPH061667Y2 (ja) | 1987-01-31 | 1987-01-31 | さく孔機の角度保持装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63121693U JPS63121693U (enrdf_load_stackoverflow) | 1988-08-08 |
JPH061667Y2 true JPH061667Y2 (ja) | 1994-01-12 |
Family
ID=30801875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1311587U Expired - Lifetime JPH061667Y2 (ja) | 1987-01-31 | 1987-01-31 | さく孔機の角度保持装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH061667Y2 (enrdf_load_stackoverflow) |
-
1987
- 1987-01-31 JP JP1311587U patent/JPH061667Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS63121693U (enrdf_load_stackoverflow) | 1988-08-08 |
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