JPH0422929Y2 - - Google Patents
Info
- Publication number
- JPH0422929Y2 JPH0422929Y2 JP17403385U JP17403385U JPH0422929Y2 JP H0422929 Y2 JPH0422929 Y2 JP H0422929Y2 JP 17403385 U JP17403385 U JP 17403385U JP 17403385 U JP17403385 U JP 17403385U JP H0422929 Y2 JPH0422929 Y2 JP H0422929Y2
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- chisel
- cylinder
- air
- hammer
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 239000011435 rock Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17403385U JPH0422929Y2 (en, 2012) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17403385U JPH0422929Y2 (en, 2012) | 1985-11-11 | 1985-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6281582U JPS6281582U (en, 2012) | 1987-05-25 |
| JPH0422929Y2 true JPH0422929Y2 (en, 2012) | 1992-05-27 |
Family
ID=31112052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17403385U Expired JPH0422929Y2 (en, 2012) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0422929Y2 (en, 2012) |
-
1985
- 1985-11-11 JP JP17403385U patent/JPH0422929Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6281582U (en, 2012) | 1987-05-25 |
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