JPH0448885Y2 - - Google Patents
Info
- Publication number
- JPH0448885Y2 JPH0448885Y2 JP1987030382U JP3038287U JPH0448885Y2 JP H0448885 Y2 JPH0448885 Y2 JP H0448885Y2 JP 1987030382 U JP1987030382 U JP 1987030382U JP 3038287 U JP3038287 U JP 3038287U JP H0448885 Y2 JPH0448885 Y2 JP H0448885Y2
- Authority
- JP
- Japan
- Prior art keywords
- drill
- cutting piece
- plate
- drilling
- holding plate
- 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 93
- 238000005553 drilling Methods 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987030382U JPH0448885Y2 (US07993877-20110809-P00003.png) | 1987-03-04 | 1987-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987030382U JPH0448885Y2 (US07993877-20110809-P00003.png) | 1987-03-04 | 1987-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63140311U JPS63140311U (US07993877-20110809-P00003.png) | 1988-09-14 |
| JPH0448885Y2 true JPH0448885Y2 (US07993877-20110809-P00003.png) | 1992-11-18 |
Family
ID=30835135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987030382U Expired JPH0448885Y2 (US07993877-20110809-P00003.png) | 1987-03-04 | 1987-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448885Y2 (US07993877-20110809-P00003.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3273156B2 (ja) * | 1992-06-18 | 2002-04-08 | 臼井国際産業株式会社 | 穴あけ方法および装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146216U (US07993877-20110809-P00003.png) * | 1979-04-06 | 1980-10-21 |
-
1987
- 1987-03-04 JP JP1987030382U patent/JPH0448885Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63140311U (US07993877-20110809-P00003.png) | 1988-09-14 |
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