JPH0426554Y2 - - Google Patents
Info
- Publication number
- JPH0426554Y2 JPH0426554Y2 JP1986018529U JP1852986U JPH0426554Y2 JP H0426554 Y2 JPH0426554 Y2 JP H0426554Y2 JP 1986018529 U JP1986018529 U JP 1986018529U JP 1852986 U JP1852986 U JP 1852986U JP H0426554 Y2 JPH0426554 Y2 JP H0426554Y2
- Authority
- JP
- Japan
- Prior art keywords
- kelly
- kelly bar
- lever
- bar
- bucket
- 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
- 239000000463 material Substances 0.000 claims description 19
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986018529U JPH0426554Y2 (ru) | 1986-02-12 | 1986-02-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986018529U JPH0426554Y2 (ru) | 1986-02-12 | 1986-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62133788U JPS62133788U (ru) | 1987-08-22 |
| JPH0426554Y2 true JPH0426554Y2 (ru) | 1992-06-25 |
Family
ID=30812281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986018529U Expired JPH0426554Y2 (ru) | 1986-02-12 | 1986-02-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426554Y2 (ru) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH057354Y2 (ru) * | 1987-12-21 | 1993-02-24 | ||
| JPH0689625B2 (ja) * | 1988-07-11 | 1994-11-09 | 日立建機株式会社 | アースドリルのケリーバ |
| JP5608571B2 (ja) * | 2011-01-11 | 2014-10-15 | 三和機材株式会社 | 掘削作業ロッドの圧力流体供給管支持装置 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5655323U (ru) * | 1979-10-05 | 1981-05-14 |
-
1986
- 1986-02-12 JP JP1986018529U patent/JPH0426554Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5655323U (ru) * | 1979-10-05 | 1981-05-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62133788U (ru) | 1987-08-22 |
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