JPS5825037Y2 - オ−ガ−ドリルヘツド - Google Patents
オ−ガ−ドリルヘツドInfo
- Publication number
- JPS5825037Y2 JPS5825037Y2 JP11476278U JP11476278U JPS5825037Y2 JP S5825037 Y2 JPS5825037 Y2 JP S5825037Y2 JP 11476278 U JP11476278 U JP 11476278U JP 11476278 U JP11476278 U JP 11476278U JP S5825037 Y2 JPS5825037 Y2 JP S5825037Y2
- Authority
- JP
- Japan
- Prior art keywords
- main cutter
- drill head
- auger drill
- arm
- cutter bits
- 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
- 238000005553 drilling Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 description 10
- 238000009412 basement excavation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11476278U JPS5825037Y2 (ja) | 1978-08-22 | 1978-08-22 | オ−ガ−ドリルヘツド |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11476278U JPS5825037Y2 (ja) | 1978-08-22 | 1978-08-22 | オ−ガ−ドリルヘツド |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5531856U JPS5531856U (enrdf_load_stackoverflow) | 1980-02-29 |
JPS5825037Y2 true JPS5825037Y2 (ja) | 1983-05-28 |
Family
ID=29065796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11476278U Expired JPS5825037Y2 (ja) | 1978-08-22 | 1978-08-22 | オ−ガ−ドリルヘツド |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5825037Y2 (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62189292A (ja) * | 1987-02-17 | 1987-08-19 | 村崎 和雄 | ア−スオ−ガのドリルヘツド用爪 |
-
1978
- 1978-08-22 JP JP11476278U patent/JPS5825037Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5531856U (enrdf_load_stackoverflow) | 1980-02-29 |
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