JPS6315431Y2 - - Google Patents
Info
- Publication number
- JPS6315431Y2 JPS6315431Y2 JP4142987U JP4142987U JPS6315431Y2 JP S6315431 Y2 JPS6315431 Y2 JP S6315431Y2 JP 4142987 U JP4142987 U JP 4142987U JP 4142987 U JP4142987 U JP 4142987U JP S6315431 Y2 JPS6315431 Y2 JP S6315431Y2
- Authority
- JP
- Japan
- Prior art keywords
- drilling
- hole
- rod
- auxiliary cylinder
- hood
- 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
- 239000000428 dust Substances 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 8
- 238000004080 punching Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 40
- 230000000694 effects Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4142987U JPS6315431Y2 (en]) | 1987-03-20 | 1987-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4142987U JPS6315431Y2 (en]) | 1987-03-20 | 1987-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62169092U JPS62169092U (en]) | 1987-10-27 |
| JPS6315431Y2 true JPS6315431Y2 (en]) | 1988-04-28 |
Family
ID=30856423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4142987U Expired JPS6315431Y2 (en]) | 1987-03-20 | 1987-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6315431Y2 (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE528549C2 (sv) * | 2004-10-07 | 2006-12-12 | Atlas Copco Rock Drills Ab | Manschett samt borrigg innefattande en sådan masschett |
-
1987
- 1987-03-20 JP JP4142987U patent/JPS6315431Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62169092U (en]) | 1987-10-27 |
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