JPH02118618U - - Google Patents
Info
- Publication number
- JPH02118618U JPH02118618U JP2445589U JP2445589U JPH02118618U JP H02118618 U JPH02118618 U JP H02118618U JP 2445589 U JP2445589 U JP 2445589U JP 2445589 U JP2445589 U JP 2445589U JP H02118618 U JPH02118618 U JP H02118618U
- Authority
- JP
- Japan
- Prior art keywords
- rod
- hole punch
- tip surface
- turning function
- circular cross
- 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
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Punching Or Piercing (AREA)
Description
第１〜２図は本考案の一実施例としてのめくれ
防止機能をもつ穴あけパンチを示すもので、第１
図はその側面図、第２図ａ，ｂ，ｃはその穴あけ
作動を示した側断面図であり、第３図ａ，ｂ，ｃ
は従来の穴あけパンチによる穴あけ作動を示した
側断面図である。
１０……穴あけパンチ、１１……棒体、１２…
…前端面、１３……ダイス、１４……パツド、１
５……鋼板、１６……小径の半球状突起。
Figures 1 and 2 show a hole punch with an anti-turning function as an embodiment of the present invention.
The figure is a side view, Figures 2 a, b, and c are side sectional views showing the drilling operation, and Figures 3 are a, b, and c.
FIG. 2 is a side sectional view showing a hole punching operation using a conventional hole punch. 10... Hole punch, 11... Rod, 12...
...Front end surface, 13...Dice, 14...Pad, 1
5... Steel plate, 16... Small diameter hemispherical projection.
Claims (1)
軸線に直角な平面で形成された穴あけパンチにお
いて、上記先端面の中心部に小径の半球状突起が
形成されたことを特徴とする、めくれ防止機能を
もつ穴あけパンチ。 A hole punch consisting of a rod with a circular cross section and a tip surface formed in a plane perpendicular to the axis of the rod, characterized in that a small-diameter hemispherical protrusion is formed at the center of the tip surface, A hole punch with anti-turning function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2445589U JPH02118618U (en) | 1989-03-03 | 1989-03-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2445589U JPH02118618U (en) | 1989-03-03 | 1989-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02118618U true JPH02118618U (en) | 1990-09-25 |
Family
ID=31244317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2445589U Pending JPH02118618U (en) | 1989-03-03 | 1989-03-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02118618U (en) |
-
1989
- 1989-03-03 JP JP2445589U patent/JPH02118618U/ja active Pending