| 摘要 |
PROBLEM TO BE SOLVED: To true up the end edge of all of the paper sheets, which are different from each other in length and width and are randomly piled, in order while peeling each of them. SOLUTION: Two end edges of the paper sheets piled in a tray 13 can be trued up to a first face to be trued up and a second face to be trued up by two dimensionally vibrating them. The first paper sheet truing-up face is inclined to the horizontal plane, and the second paper sheet truing-up face crosses the first paper sheet truing-up face at nearly 90 deg.. The paper sheets adjacent to each other, when vibrated in a piling direction, create space between them, and air goes into the space, as a result, paper sheets drop to the first paper sheet truing-up face, and one of the end edges is trued-up, and in addition, the paper sheets are slidden and drop on the first paper sheet truing-up, and the other end edge is trued up by the second paper sheet truing-up face.
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