JPH03122191U - - Google Patents
Info
- Publication number
- JPH03122191U JPH03122191U JP2978090U JP2978090U JPH03122191U JP H03122191 U JPH03122191 U JP H03122191U JP 2978090 U JP2978090 U JP 2978090U JP 2978090 U JP2978090 U JP 2978090U JP H03122191 U JPH03122191 U JP H03122191U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- bit body
- blades fixed
- tip
- tip surface
- 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.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims 1
Description
第１図ないし第４図はこの考案のビツトの実施
例を示すものである。第１図は第一実施例のビツ
トの断面図、第２図ないし第４図は第二実施例を
示し、第２図はビツトの先端視図、第３図は第２
図における−線視断面図、第４図は第３図に
おける矢視図である。
１，１５……ビツト本体、２……チツプ（刃体
）、１２……リングビツト（外周ビツト）、１７
……外周ビツト。
1 to 4 show an embodiment of the bit of this invention. Fig. 1 is a sectional view of the bit of the first embodiment, Figs. 2 to 4 show the second embodiment, Fig. 2 is a view of the tip of the bit, and Fig. 3 is a cross-sectional view of the bit of the second embodiment.
4 is a sectional view taken along the - line in the figure, and FIG. 4 is a view taken along the arrow in FIG. 1, 15... Bit body, 2... Chip (blade body), 12... Ring bit (outer circumference bit), 17
...Outer bit.
Claims (1)
、このビツト本体の先端外周部に着脱自在に嵌合
されかつ先端面に多数の刃体が固定された外周ビ
ツトとを具備してなることを特徴とするビツト。 A bit body comprising a bit body having a number of blades fixed to the tip surface, and an outer peripheral bit detachably fitted to the outer periphery of the tip of the bit body and having a number of blades fixed to the tip surface. A bit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2978090U JPH03122191U (en) | 1990-03-23 | 1990-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2978090U JPH03122191U (en) | 1990-03-23 | 1990-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122191U true JPH03122191U (en) | 1991-12-13 |
Family
ID=31532530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2978090U Pending JPH03122191U (en) | 1990-03-23 | 1990-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020528504A (en) * | 2017-07-20 | 2020-09-24 | ミンコン インターナショナル リミテッドＭｉｎｃｏｎ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｌｉｍｉｔｅｄ | Drill bit with removable bit head |
-
1990
- 1990-03-23 JP JP2978090U patent/JPH03122191U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020528504A (en) * | 2017-07-20 | 2020-09-24 | ミンコン インターナショナル リミテッドＭｉｎｃｏｎ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｌｉｍｉｔｅｄ | Drill bit with removable bit head |