JPS6314971Y2 - - Google Patents
Info
- Publication number
- JPS6314971Y2 JPS6314971Y2 JP1984098170U JP9817084U JPS6314971Y2 JP S6314971 Y2 JPS6314971 Y2 JP S6314971Y2 JP 1984098170 U JP1984098170 U JP 1984098170U JP 9817084 U JP9817084 U JP 9817084U JP S6314971 Y2 JPS6314971 Y2 JP S6314971Y2
- Authority
- JP
- Japan
- Prior art keywords
- drill
- spring
- mounting recess
- hole
- support ball
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005553 drilling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9817084U JPS6116211U (ja) | 1984-06-29 | 1984-06-29 | ホ−ルソ− |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9817084U JPS6116211U (ja) | 1984-06-29 | 1984-06-29 | ホ−ルソ− |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6116211U JPS6116211U (ja) | 1986-01-30 |
JPS6314971Y2 true JPS6314971Y2 (US07714131-20100511-C00038.png) | 1988-04-26 |
Family
ID=30657718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9817084U Granted JPS6116211U (ja) | 1984-06-29 | 1984-06-29 | ホ−ルソ− |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6116211U (US07714131-20100511-C00038.png) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6021122Y2 (ja) * | 1980-01-26 | 1985-06-24 | 昌明 宮永 | 切抜廃板の落下防止機構付コアドリル |
-
1984
- 1984-06-29 JP JP9817084U patent/JPS6116211U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6116211U (ja) | 1986-01-30 |
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