| 摘要 |
A device for cyclically rearranging a pile of rectangular or square sheets, particularly a pile of photographic prints, comprises a first (12) and a second (14) frame parts movable with respect to each other in parallel to the main plane of the pile. Elements grab an individual sheet from one side of the pile and bring it to the other side of the pile during a reciprocating motion of the frame parts. Said elements comprise: (a) a separator device (20/266) to separate an individual sheet from the pile, (b) a feeding device (460) to feed sheets to the separator device, (c) holding devices (460/20) for holding the individual sheet in the first frame part and the remainder of the pile in the other frame part, and (d) a guiding device (386) to bring back the individual sheet to the other side of the remainder of the pile. The feeding and holding devices for the individual sheet are comprised of a drive member (460) which hooks the rear edge of the sheet to be separated, in the feed direction thereof. A pressure device (476) is provided on the pile side facing the drive member. The rearranging device may receive piles with a variable number of sheets. The pressure device for the sheet to be separated presses the sheet until the drive member gets into the separator device. The guiding device (490) comprises elements which enable the introduction of the individual sheet between the pressure device and the pile, when they are actuated by the motion of the frame parts. |
