| 摘要 |
<p>A perforator for perforating a stack of paper sheets comprises an inclined perforated plate having a plurality of holes therein and a recess formed in the inner surface of the perforated plate extending down from the upper edge and terminating short of the lower edge of the plate to provide a stop for the stick of paper sheets. An inclined perforated punching rod guide member is positioned opposite and parallel to the inner surface of the perforated plate to define an inclined paper stack receiving opening in cooperation with the recess. The punching rod guide member has a plurality of holes in alignment with the holes in the perforated plate, and a plurality of punching rods are reciprocably received in the holes in the rod guide member for advancing into and retracting relative to the holes in the perforated plate. A punching rod actuation member is connected to the rear ends of the rods for advancing and retracting the punching rods simultaneously into and from the holes in the plate, and a handle is operatively connected to the punching rod actuation member through an interlocking mechanism for actuating the rod actuation member.</p> |
