JPH0545666Y2 - - Google Patents
Info
- Publication number
- JPH0545666Y2 JPH0545666Y2 JP16416685U JP16416685U JPH0545666Y2 JP H0545666 Y2 JPH0545666 Y2 JP H0545666Y2 JP 16416685 U JP16416685 U JP 16416685U JP 16416685 U JP16416685 U JP 16416685U JP H0545666 Y2 JPH0545666 Y2 JP H0545666Y2
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- piston
- valve
- diameter portion
- tool
- 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
- 239000011435 rock Substances 0.000 claims description 21
- 239000010720 hydraulic oil Substances 0.000 description 21
- 238000005553 drilling Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16416685U JPH0545666Y2 (enrdf_load_stackoverflow) | 1985-10-28 | 1985-10-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16416685U JPH0545666Y2 (enrdf_load_stackoverflow) | 1985-10-28 | 1985-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6272389U JPS6272389U (enrdf_load_stackoverflow) | 1987-05-09 |
JPH0545666Y2 true JPH0545666Y2 (enrdf_load_stackoverflow) | 1993-11-24 |
Family
ID=31093032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16416685U Expired - Lifetime JPH0545666Y2 (enrdf_load_stackoverflow) | 1985-10-28 | 1985-10-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0545666Y2 (enrdf_load_stackoverflow) |
-
1985
- 1985-10-28 JP JP16416685U patent/JPH0545666Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS6272389U (enrdf_load_stackoverflow) | 1987-05-09 |
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