JPH0247113U - - Google Patents
Info
- Publication number
- JPH0247113U JPH0247113U JP12692288U JP12692288U JPH0247113U JP H0247113 U JPH0247113 U JP H0247113U JP 12692288 U JP12692288 U JP 12692288U JP 12692288 U JP12692288 U JP 12692288U JP H0247113 U JPH0247113 U JP H0247113U
- Authority
- JP
- Japan
- Prior art keywords
- drill
- core drill
- holes
- barrel
- inclination angle
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Drilling Tools (AREA)
Description
第１図はこの考案に係るコアードリルの一部断
面側面図、第２図は背面図、第３図は第１図の
−断面図である。
符号、１……ドリル筒体、１ａ……ドリル筒体
のシヤンク部、１ｂ……ドリル筒体の作用部、２
……内部穴、３……孔、＋θ……正の傾斜角、−
θ……負の傾斜角。
FIG. 1 is a partially sectional side view of a core drill according to this invention, FIG. 2 is a rear view, and FIG. 3 is a cross-sectional view taken from FIG. 1. Code, 1...Drill barrel, 1a...Shank part of drill barrel, 1b...Action part of drill barrel, 2
...internal hole, 3...hole, +θ...positive inclination angle, -
θ... Negative tilt angle.
Claims (1)
と連通する複数の孔３を設けてなるコアードリル
。 ドリル筒体１の作用部１ｂとシヤンク部１ａ
の段部側壁に内部穴２と連通する複数の孔３を設
けてなる請求項記載のコアードリル。 孔３のあるものはドリル筒体１の回転方向に
対して負の傾斜角−θを有し、他のものは正の傾
斜角＋θを有するものである請求項または記
載のコアードリル。[Claims for Utility Model Registration] An internal hole 2 is provided on the outer peripheral surface of the operating portion 1b of the drill barrel 1.
A core drill having a plurality of holes 3 communicating with the core drill. Working part 1b and shank part 1a of drill barrel 1
2. A core drill according to claim 1, wherein a plurality of holes 3 communicating with the internal hole 2 are provided in a step side wall of the core drill. The core drill according to claim 1, wherein some of the holes (3) have a negative inclination angle -θ with respect to the rotational direction of the drill barrel 1, and others have a positive inclination angle +θ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988126922U JPH0632252Y2 (en) | 1988-09-27 | 1988-09-27 | Core drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988126922U JPH0632252Y2 (en) | 1988-09-27 | 1988-09-27 | Core drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0247113U true JPH0247113U (en) | 1990-03-30 |
| JPH0632252Y2 JPH0632252Y2 (en) | 1994-08-24 |
Family
ID=31378882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988126922U Expired - Lifetime JPH0632252Y2 (en) | 1988-09-27 | 1988-09-27 | Core drill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632252Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100736941B1 (en) * | 2006-02-24 | 2007-07-10 | 이화다이아몬드공업 주식회사 | Core drill and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5494693U (en) * | 1977-12-17 | 1979-07-04 | ||
| JPS54175091U (en) * | 1978-05-31 | 1979-12-11 | ||
| JPS59131806U (en) * | 1983-02-23 | 1984-09-04 | 三菱マテリアル株式会社 | diamond core drill |
-
1988
- 1988-09-27 JP JP1988126922U patent/JPH0632252Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5494693U (en) * | 1977-12-17 | 1979-07-04 | ||
| JPS54175091U (en) * | 1978-05-31 | 1979-12-11 | ||
| JPS59131806U (en) * | 1983-02-23 | 1984-09-04 | 三菱マテリアル株式会社 | diamond core drill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100736941B1 (en) * | 2006-02-24 | 2007-07-10 | 이화다이아몬드공업 주식회사 | Core drill and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0632252Y2 (en) | 1994-08-24 |