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    • 1. 发明专利
    • Sheet feeding apparatus
    • 面料送料装置
    • JP2011121765A
    • 2011-06-23
    • JP2009282696
    • 2009-12-14
    • Canon Incキヤノン株式会社
    • MORINAGA KAZUYUKIKAWAZOE KENJISHINMACHI MASAYAHAMANO TORUTOKIZAWA SOMEI
    • B65H1/12
    • B65H1/12B65H3/0607B65H2405/1117B65H2511/212B65H2515/32B65H2515/704B65H2555/25B65H2801/06B65H2220/01B65H2220/11B65H2220/03B65H2220/02
    • PROBLEM TO BE SOLVED: To provide a sheet feeding apparatus capable of detecting the stacked amount of sheets with a simple structure without adding a sensor.
      SOLUTION: A printer includes: a separating unit, such as a depressing cam 407 and a depressing slider 413, which presses a middle plate 402 against the biasing force of a spring 403 and separates a sheet on the middle plate 402 from a sheet feeding roller 405 by a predetermined distance; a separation driving unit, such as a DC motor, which moves the separating unit; a measuring unit which measures the driving load applied to the separation driving unit when the separation driving unit drives the separating unit; and a load imparting unit, such as a brake plate 420, which imparts load to the middle plate 402, the separating unit, or the like. The brake plate 420 or the like imparts load when a sheet is separated from the sheet feeding roller 405 by the separating unit, and the brake plate 420 or the like changes the load to be imparted, according to the turning angle of the middle plate 402.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够在不添加传感器的情况下以简单的结构检测片材的堆叠量的片材进给装置。 解决方案:打印机包括:抵抗弹簧403的偏置力按压中间板402的分离单元,例如按压凸轮407和压下滑块413,并将中间板402上的薄片与 送纸辊405预定距离; 分离驱动单元,例如DC马达,其移动分离单元; 测量单元,其在分离驱动单元驱动分离单元时测量施加到分离驱动单元的驱动负载; 以及赋予中间板402,分离单元等负载的载荷赋予单元,例如制动板420。 当片材通过分离单元与片材进给辊405分离时,制动板420等施加载荷,并且制动板420等根据中间板402的转动角度改变要施加的载荷 版权所有(C)2011,JPO&INPIT