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    Sheet feeding apparatus and image forming apparatus
    1.
    发明公开
    Sheet feeding apparatus and image forming apparatus 有权
    Bogenzuführvorrichtungund Bilderzeugungsvorrichtung

    公开(公告)号：EP1053961A2

    公开(公告)日：2000-11-22

    申请号：EP00109999.3

    申请日：2000-05-11

    申请人： CANON KABUSHIKI KAISHA

    发明人： Nakano, Yuji, c/o Canon Kabushiki Kaisha

    IPC分类号： B65H3/06

    CPC分类号： B41J13/103 ,  B65H3/0638 ,  B65H2403/481 ,  B65H2403/72 ,  B65H2403/723

    摘要： A sheet feeding apparatus including a feeding roller (2) for separating and feeding a sheet, a conveying roller for conveying the sheet, a drive motor directly connected to the conveying roller (6) and capable of being rotated forwardly and reversely, a drive intermittent device for selectively transmitting a driving force from the drive motor to the feeding roller (2), and a drive switching device for rotating the feeding roller (2) in a conveying direction regardless of a rotational direction of the drive motor, and wherein, in the drive switching device, a spring clutch is used as a one-way clutch for effecting drive transmitting when the drive motor rotates the conveying roller (6) in the conveying direction as forwardly rotation and a clutch of pendulum type is used as a one-way clutch for effecting the drive transmission when the drive motor rotates the conveying roller (6) in a direction opposite to the conveying direction as reverse rotation, and the number of gears is differentiated between the forward rotation and the reverse rotation by one or odd.

    摘要翻译： 一种送纸装置，包括用于分离和供给纸张的进给辊（2），用于输送纸张的输送辊，直接连接到输送辊（6）并能够向前和向后旋转的驱动马达，驱动间歇 用于选择性地将驱动力从驱动马达传送到进给辊（2）的装置;以及驱动切换装置，用于沿着输送方向旋转进给辊（2），而不管驱动马达的旋转方向如何 驱动切换装置，弹簧离合器被用作单向离合器，用于当驱动马达沿着输送方向旋转输送辊（6）向前旋转时进行驱动传递，并且使用摆锤式离合器作为单向离合器， 当驱动电动机以与反转方向相反的方向旋转输送辊（6）时，实现驱动传动，并且齿轮数不同 正向旋转和反向旋转之间有一个或多个。