| 摘要 |
A sheet supply inlet (4) receives sheets (3) one by one from a printing machine (2). A sheet gathering and registering mechanism (20) comprises a pair of sheet feed rollers (24A, 24B) arranged in the neighborhood of the sheet supply inlet (4) for successively supplying each sheet (3) from the sheet supply inlet (4) to the sheet stitching station (5) so as to lay the sheets (3) one above another in the sheet stitching station (5), and a guide plate (26) arranged adjacent to the sheet feed rollers (24A, 24B) for swing movement in such a manner that the guide plate (26) pushes the rear end of the top sheet (3) toward the stopper (12; 13) until the front end of the top sheet (3) abuts against the stopper (12;13) each time the sheet is supplied to the sheet stitching station (5).
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