| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a punching device 1 which can reduce the number of parts and punch holes on a material to be punched at an arbitrary position by a structure which can reduce a force necessary for punching. <P>SOLUTION: A holder 2 holds one or a plurality of punches and dies. The holder 2 can move in the direction of an alignment of a plurality of holes to be punched on the material to be punched. On an upper side of the holder 2, an eccentric cam 3 is arranged in parallel with the direction of the alignment. The eccentric cam 3 is rotated to move the punches in the holder 2 to the dies irrespective of the moving position of the holder 2. Then, the holder 2 is sequentially moved to rotate the eccentric cam 3, so that the holes more than the number of punches held in the holder 2 can be punched on the material to be punched. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
