| 摘要 |
<p>Described herein is a rotatable disks type sheet inverting, registration and stacking system (10) which comprises a disk unit (12) having finger units (16a, 16b), with sheet carrying slots (18a, 18b), which are mounted to the disk units (12) for variable radial movement. The finger units (16a, 16b) automatically adjust their radius to release sheets from their respective slots (18a, 18b) closely adjacent to the top of output stack (44) at their registration position to compensate automatically for variations in the height of the stack (44), preferably by limited force engagement of the ends of the fingers (16a, 16b) with the top of the stack (44). Preferably, the finger units (16a, 16b) are radially pivotally outwardly lightly spring loaded to provide a transporting and inverting position for the sheets which is at a substantially greater radius than the reduced radius thereof for releasing sheets at the stacking registration position. A vertically movable sheet hold-down bail system (30, 32, 34, 36a, 36b) is automatically actuated in coordination with the release of the sheet only to engage the sheet when it is very closely adjacent to the top of the stack (44).</p> |
