JPH0251095U

JPH0251095U -

Info

Publication number: JPH0251095U
Application number: JP12634588U
Authority: JP
Priority date: 1988-09-29
Filing date: 1988-09-29
Publication date: 1990-04-10

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例を示す正面図、第
２図は第１図の側面図、第３図は回転刃の要部断
面図、第４図Ａは第１実施例の回転刃の要部断面
図、第４図Ｂは第２実施例の回転刃の要部断面図
、第５図は従来例の正面図、第６図は第５図の側
面図、第７図は同従来例のシート切断状態を示す
断面図、第８図Ａ，Ｂはシート切断部の平面図と
正面図、第９図は他の従来例の正面図、第１０図
は第９図の側面図、第１１図は第９図の回転刃の
要聞断面図である。１ａ，１ｂ：回転軸、１２ａ，１２ｂ：回転刃
、Ｐ：平坦側面、Ｋ：刃先、Ｓ：支持肩部。 Figure 1 is a front view showing the first embodiment of the present invention, Figure 2 is a side view of Figure 1, Figure 3 is a sectional view of the main part of the rotary blade, and Figure 4A is the rotation of the first embodiment. 4B is a sectional view of the main part of the rotary blade of the second embodiment, FIG. 5 is a front view of the conventional example, FIG. 6 is a side view of FIG. 5, and FIG. 7 is a sectional view of the main part of the blade. 8A and 8B are a plan view and a front view of the sheet cutting section, FIG. 9 is a front view of another conventional example, and FIG. 10 is a side view of FIG. 9. 11 is a schematic cross-sectional view of the rotary blade shown in FIG. 9. 1a, 1b: rotating shaft, 12a, 12b: rotating blade, P: flat side, K: cutting edge, S: supporting shoulder.

Claims

[Scope of utility model registration request]

A pair of rotary blades having cutting edges formed on the outer periphery of the flat side surfaces are fitted onto rotating shafts arranged in parallel, and the outer periphery portions of the flat side surfaces of both rotary blades are arranged in contact with each other to slit the sheet. A rotary cutting device, characterized in that a support shoulder portion of a sheet surface formed with a small diameter by providing a step on a flat side surface of the rotary blade from the cutting edge toward the axis side is integrally protruded. .