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发明授权
CN101508392B 纸张压摺器、纸张传送器、纸张整理器、成像设备以及纸张压摺方法 失效 - 权利终止

纸张压摺器、纸张传送器、纸张整理器、成像设备以及纸张压摺方法
摘要：
一种挤压单元，其挤压由折叠单元(74，81)折叠的一叠纸张的折叠侧，从而对这叠纸张进行有力的压摺。该挤压单元包括压力辊(600)，在旋转时，其在折叠侧上滑动；弹性偏压单元(609)，其在所述一叠纸张的厚度方向上挤压压力辊(600)；以及驱动单元(606，607，612)，其使压力辊(600)在充分垂直于所述一叠纸张的传送方向的方向上滑动。提升单元(602，611)，当压力辊(600)滑到第一位置时，临时地提升压力辊(600)，并且当被提升的压力辊(600)滑动到第二位置时，将提升的压力辊(600)放下到折叠侧上。第一位置和第二位置位于折叠侧的角前面，由此，压力辊(600)不能折叠侧上上滑。
摘要（英）：

A pressing unit presses a folded side of a stack of sheets folded by a folding unit (74, 81), thereby making a strong crease on the stack of sheets. The pressing unit includes a pressure roller (600) that slides on the folded side while rotating, an elastic biasing unit (609) that presses the pressure roller (600) in a thickness direction of the stack of sheets, and a driving unit (606, 607, 612)that slides the pressure roller (600) in a direction substantially perpendicular to a conveying direction of the stack of sheets. A lifting unit (602, 611), when the pressure roller (600) slides to afirst position, temporarily lifts up the pressure roller (600), and when lifted-up pressure roller (600) slides to a second position, lifts the lifted-up pressure roller (600) down onto the folded side. The first position and the second position are located before a corner of the folded side, whereby the pressure roller (600) cannot slide up on the folded side.

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