| 摘要 |
<p>A wire stitcher for binding sets of sheets has a driver 106 for driving a staple through a set and an active clincher 201. In one form the clincher has a drive for the clincher ears which is actuated by the driver 106. The drive is by a spring 220 which is loaded during a return motion of the clincher housing 202 at the completion of a stitching operation. In another form the clincher ear drive is effected by a cam 250. Both forms are capable of accommodating variations in set thickness essentially without affecting the timing of the operation of the clincher ears 204 (Figures 6 and 7).</p> |
