JPS6238512B2 - - Google Patents
Info
- Publication number
- JPS6238512B2 JPS6238512B2 JP5216681A JP5216681A JPS6238512B2 JP S6238512 B2 JPS6238512 B2 JP S6238512B2 JP 5216681 A JP5216681 A JP 5216681A JP 5216681 A JP5216681 A JP 5216681A JP S6238512 B2 JPS6238512 B2 JP S6238512B2
- Authority
- JP
- Japan
- Prior art keywords
- case
- bit
- revolving
- shaft
- hole
- 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
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000009412 basement excavation Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5216681A JPS57165587A (en) | 1981-04-07 | 1981-04-07 | Drilling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5216681A JPS57165587A (en) | 1981-04-07 | 1981-04-07 | Drilling apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57165587A JPS57165587A (en) | 1982-10-12 |
| JPS6238512B2 true JPS6238512B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-08-18 |
Family
ID=12907240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5216681A Granted JPS57165587A (en) | 1981-04-07 | 1981-04-07 | Drilling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57165587A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60221009A (ja) * | 1984-04-17 | 1985-11-05 | ヤンマー農機株式会社 | 田植機の苗植装置 |
| JPS6460305A (en) * | 1988-08-01 | 1989-03-07 | Yanmar Agricult Equip | Seedling planter in rice transplanter |
| JPH0620373B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1988-12-19 | 1994-03-23 | Yanmar Agricult Equip | |
| JPH07121172B2 (ja) * | 1993-09-09 | 1995-12-25 | ヤンマー農機株式会社 | 田植機の苗植装置 |
| JPH07121174B2 (ja) * | 1993-09-13 | 1995-12-25 | ヤンマー農機株式会社 | 田植機の苗植装置 |
| JPH07121173B2 (ja) * | 1993-09-13 | 1995-12-25 | ヤンマー農機株式会社 | 田植機の苗植装置 |
| JP2507869B2 (ja) * | 1994-09-19 | 1996-06-19 | ヤンマー農機株式会社 | 田植機の苗植装置 |
-
1981
- 1981-04-07 JP JP5216681A patent/JPS57165587A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57165587A (en) | 1982-10-12 |