JPH0512516B2 - - Google Patents
Info
- Publication number
- JPH0512516B2 JPH0512516B2 JP63199669A JP19966988A JPH0512516B2 JP H0512516 B2 JPH0512516 B2 JP H0512516B2 JP 63199669 A JP63199669 A JP 63199669A JP 19966988 A JP19966988 A JP 19966988A JP H0512516 B2 JPH0512516 B2 JP H0512516B2
- Authority
- JP
- Japan
- Prior art keywords
- digging
- claws
- excavation
- claw
- excavating
- 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 - Fee Related
Links
- 210000000078 claw Anatomy 0.000 claims description 79
- 238000009412 basement excavation Methods 0.000 claims description 42
- 238000005553 drilling Methods 0.000 claims description 11
- 239000011435 rock Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19966988A JPH0249888A (ja) | 1988-08-10 | 1988-08-10 | 回転式掘削ビット |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19966988A JPH0249888A (ja) | 1988-08-10 | 1988-08-10 | 回転式掘削ビット |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0249888A JPH0249888A (ja) | 1990-02-20 |
JPH0512516B2 true JPH0512516B2 (US20090163788A1-20090625-C00002.png) | 1993-02-18 |
Family
ID=16411652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19966988A Granted JPH0249888A (ja) | 1988-08-10 | 1988-08-10 | 回転式掘削ビット |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0249888A (US20090163788A1-20090625-C00002.png) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4863342B2 (ja) * | 2004-07-09 | 2012-01-25 | 株式会社技研製作所 | 掘削へッド及び杭圧入機 |
JP2007000117A (ja) * | 2005-06-27 | 2007-01-11 | Yoshiro Nakamatsu | ミニ具大寿司 |
GB2510433A (en) * | 2013-02-05 | 2014-08-06 | Attachment Torque Mfg China Co Ltd | Curved auger tooth and auger tooth holder |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5733790B2 (US20090163788A1-20090625-C00002.png) * | 1973-11-19 | 1982-07-19 | ||
JPS6136621U (ja) * | 1984-08-10 | 1986-03-06 | 木村寝台工業株式会社 | 仰臥台に於ける床部の昇降用駆動機構 |
JPS6145273U (ja) * | 1984-08-30 | 1986-03-26 | いすゞ自動車株式会社 | ハンドブレ−キレバ− |
JPS62189293A (ja) * | 1987-02-17 | 1987-08-19 | 村崎 和雄 | ドリルのヘツド用爪 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5733790U (US20090163788A1-20090625-C00002.png) * | 1980-08-05 | 1982-02-22 |
-
1988
- 1988-08-10 JP JP19966988A patent/JPH0249888A/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5733790B2 (US20090163788A1-20090625-C00002.png) * | 1973-11-19 | 1982-07-19 | ||
JPS6136621U (ja) * | 1984-08-10 | 1986-03-06 | 木村寝台工業株式会社 | 仰臥台に於ける床部の昇降用駆動機構 |
JPS6145273U (ja) * | 1984-08-30 | 1986-03-26 | いすゞ自動車株式会社 | ハンドブレ−キレバ− |
JPS62189293A (ja) * | 1987-02-17 | 1987-08-19 | 村崎 和雄 | ドリルのヘツド用爪 |
Also Published As
Publication number | Publication date |
---|---|
JPH0249888A (ja) | 1990-02-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |