| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a boring device, a post-processing device, and an image formation device, enabling a punch member to be moved in boring direction while being rotated, with a relatively simple configuration and efficiency.SOLUTION: A boring device includes a slide arm 61 which is driven by a driving means to reciprocate in a predetermined direction, and a punch member 62 which, with a direction across the direction in which the slide arm 61 reciprocates as a boring direction, reciprocates in the boring direction interlocking with the reciprocation of the slide arm 61. The punch member 62 is provided with a punch rotation part 64 which rotates interlocking with the reciprocation of the slide arm 61, with the boring direction as a rotating axis direction.</p> |
