| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide sharp cutting, by reducing cutting pressure, in a punching cutter usable as a Thompson blade. <P>SOLUTION: An inclined blade part 12 for forming a shear angle is formed over a recessed blade part 11 from a projecting blade part 10, by forming a recess-projection in the edge pointed end direction in an edge part 1A. Thus, the edge part can have the shear angle by the inclined blade part, and abuts on a cutting object material W in a dot state or a short line state, and excellent bites in the cutting object material, to perform sharp cutting. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
