| 摘要 |
<p>Punch for paper comprising a bottom part (10) with a punch die, an entering slot (11) for the material to be perforated, and punch guides, for the punches of the punch, and a top part (12) hingedly connected to the bottom part and designed as a pressure plate. As extruded, both the bottom part (10) and the top part (12) are designed with a continously running channel (14, 15), wherein, alternately on the bottom part (10) and the top part (12), certain parts of the channels (14, 15) are removed so that remaining parts on one part may enter into the space between remaining parts on the other part to form a hinge, into which an axle (16) is entered.</p> |
