JPH0388697U

JPH0388697U -

Info

Publication number: JPH0388697U
Application number: JP15052189U
Authority: JP
Priority date: 1989-12-26
Filing date: 1989-12-26
Publication date: 1991-09-10

Description

[Brief explanation of the drawing]

第１図乃至第２図は、従来物の斜視図、第３図
は本考案の一実施例の斜視図、第４ａ図乃至第４
ｂ図は第３図の要部断面図。１……刃物、２……第２の刃面、３……第１の
刃面、４……溝。 Figures 1 and 2 are perspective views of a conventional product, Figure 3 is a perspective view of an embodiment of the present invention, and Figures 4a and 4.
Figure b is a sectional view of the main part of Figure 3. 1...Blade, 2...Second blade surface, 3...First blade surface, 4...Groove.

Claims

[Claims for Utility Model Registration] 1. A knife for cutting and punching sheet materials in a stacked state, which comprises a first blade surface with a certain grinding angle and a second blade surface with a grinding angle larger than the first blade surface. A blade punched from sheet material, characterized by having blade surfaces arranged in a dispersed manner. 2. The cutter according to claim 1, wherein the two types of polishing angles have a difference of at least 2 degrees. 3. The cutter according to claim 1, wherein the first blade surface follows the shape to be punched, and the second blade surface is polished into a concave shape within the first blade surface. 4. The cutter according to claim 3, wherein the first blade surface follows the shape to be punched, and the second blade surface is ground into a V-groove shape within the first blade surface. 5. The first blade surface is along the shape to be punched, the second blade surface is polished into a cylindrical surface within the first blade surface, and the second blade surface is polished in a cylindrical shape within the first blade surface, and the chord of the arc of the cylindrical surface is The cutter according to claim 3, having a length of 7 mm or less.