JPH0434233Y2 - - Google Patents
Info
- Publication number
- JPH0434233Y2 JPH0434233Y2 JP1987172885U JP17288587U JPH0434233Y2 JP H0434233 Y2 JPH0434233 Y2 JP H0434233Y2 JP 1987172885 U JP1987172885 U JP 1987172885U JP 17288587 U JP17288587 U JP 17288587U JP H0434233 Y2 JPH0434233 Y2 JP H0434233Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- enlarged
- excavation
- bit body
- rod
- 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
- 238000009412 basement excavation Methods 0.000 claims description 33
- 238000003825 pressing Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 description 17
- 239000004576 sand Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- ZUFQODAHGAHPFQ-UHFFFAOYSA-N pyridoxine hydrochloride Chemical compound Cl.CC1=NC=C(CO)C(CO)=C1O ZUFQODAHGAHPFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987172885U JPH0434233Y2 (it) | 1987-11-11 | 1987-11-11 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987172885U JPH0434233Y2 (it) | 1987-11-11 | 1987-11-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0179692U JPH0179692U (it) | 1989-05-29 |
JPH0434233Y2 true JPH0434233Y2 (it) | 1992-08-14 |
Family
ID=31464834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987172885U Expired JPH0434233Y2 (it) | 1987-11-11 | 1987-11-11 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0434233Y2 (it) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5322404U (it) * | 1976-08-03 | 1978-02-24 | ||
JPS5519370A (en) * | 1978-07-28 | 1980-02-12 | Tone Boring Co | Device for enlarging hole |
JPS56596U (it) * | 1979-06-15 | 1981-01-06 | ||
JPS56596A (en) * | 1979-04-12 | 1981-01-07 | Framatome Sa | Liquid recirculation type centrifugal pump |
JPS5637031U (it) * | 1979-08-30 | 1981-04-09 | ||
JPS5716948U (it) * | 1980-07-04 | 1982-01-28 | ||
JPS5753514A (en) * | 1980-09-17 | 1982-03-30 | Mitsubishi Rayon Co Ltd | Preparation of high-impact resin |
JPS5976391A (ja) * | 1982-10-25 | 1984-05-01 | 株式会社利根ボ−リング | 空圧打撃式拡孔掘削装置 |
-
1987
- 1987-11-11 JP JP1987172885U patent/JPH0434233Y2/ja not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5322404U (it) * | 1976-08-03 | 1978-02-24 | ||
JPS5519370A (en) * | 1978-07-28 | 1980-02-12 | Tone Boring Co | Device for enlarging hole |
JPS56596A (en) * | 1979-04-12 | 1981-01-07 | Framatome Sa | Liquid recirculation type centrifugal pump |
JPS56596U (it) * | 1979-06-15 | 1981-01-06 | ||
JPS5637031U (it) * | 1979-08-30 | 1981-04-09 | ||
JPS5716948U (it) * | 1980-07-04 | 1982-01-28 | ||
JPS5753514A (en) * | 1980-09-17 | 1982-03-30 | Mitsubishi Rayon Co Ltd | Preparation of high-impact resin |
JPS5976391A (ja) * | 1982-10-25 | 1984-05-01 | 株式会社利根ボ−リング | 空圧打撃式拡孔掘削装置 |
Also Published As
Publication number | Publication date |
---|---|
JPH0179692U (it) | 1989-05-29 |
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