JPS63150716U - - Google Patents
Info
- Publication number
- JPS63150716U JPS63150716U JP4049287U JP4049287U JPS63150716U JP S63150716 U JPS63150716 U JP S63150716U JP 4049287 U JP4049287 U JP 4049287U JP 4049287 U JP4049287 U JP 4049287U JP S63150716 U JPS63150716 U JP S63150716U
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- right sides
- blade surfaces
- gouge
- acute 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
- 230000001154 acute effect Effects 0.000 claims description 2
Landscapes
- Punching Or Piercing (AREA)
Description
第１図はこの考案孔あけパンチの斜視図、第２
図は同正面図、第３図は同側面図、第４図は同平
面図、第５図は同要部の縦断正面図、第６図は同
縦断側面図である。
１…筒状部、２…筒孔、３…刃先、４…刃先稜
線、５…えぐり刃面、５ａ…凹陥弯曲刃先、５ｂ
…弯曲内刃、６…シヤンク、α…鋭角。
Figure 1 is a perspective view of this invented hole punch, Figure 2
The drawings are a front view of the same, FIG. 3 is a side view of the same, FIG. 4 is a plan view of the same, FIG. 5 is a longitudinal sectional front view of the main parts, and FIG. DESCRIPTION OF SYMBOLS 1... Cylindrical part, 2... Cylindrical hole, 3... Cutting edge, 4... Cutting edge ridgeline, 5... Gouged blade surface, 5a... Concave curved cutting edge, 5b
...curved inner blade, 6...shank, α...acute angle.
Claims (1)
５ａの前後えぐり刃面５，５を夫々設け、該両え
ぐり刃面５，５の両端が対向する左右両側で鋭角
αの刃先稜線４を夫々形成して左右両側に嘴状に
刃先３が夫々設けられてなる孔あけパンチ。 Front and rear gouge blade surfaces 5, 5 each having a curved cutting edge 5a with a concave outer periphery are provided on both the front and rear sides of the tip of the cylindrical portion 1, and a cutting edge ridge line 4 with an acute angle α is formed on both left and right sides where both ends of the two gouge blade surfaces 5, 5 face each other. A hole punch in which beak-shaped cutting edges 3 are formed on both the left and right sides, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4049287U JPH0233938Y2 (en) | 1987-03-19 | 1987-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4049287U JPH0233938Y2 (en) | 1987-03-19 | 1987-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63150716U true JPS63150716U (en) | 1988-10-04 |
| JPH0233938Y2 JPH0233938Y2 (en) | 1990-09-12 |
Family
ID=30854624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4049287U Expired JPH0233938Y2 (en) | 1987-03-19 | 1987-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233938Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06547A (en) * | 1992-06-19 | 1994-01-11 | Amada Metrecs Co Ltd | Die for punching |
| JP2006159210A (en) * | 2004-12-02 | 2006-06-22 | Sango Co Ltd | Punch for punching pipe and punching method |
-
1987
- 1987-03-19 JP JP4049287U patent/JPH0233938Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06547A (en) * | 1992-06-19 | 1994-01-11 | Amada Metrecs Co Ltd | Die for punching |
| JP2006159210A (en) * | 2004-12-02 | 2006-06-22 | Sango Co Ltd | Punch for punching pipe and punching method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0233938Y2 (en) | 1990-09-12 |