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    Automatic document feeder and image forming apparatus using the same
    1.
    发明公开
    Automatic document feeder and image forming apparatus using the same 有权
    自动化Dokumentzuführgerätund Bilderzeugungsvorrichtung mit einem solchenGerät

    公开(公告)号：EP1215536A1

    公开(公告)日：2002-06-19

    申请号：EP01129379.2

    申请日：2001-12-18

    申请人： Ricoh Company, Ltd.

    发明人： Sueoka, Hideki

    IPC分类号： G03G15/00 ,  B65H3/06 ,  H04N1/00

    CPC分类号： B65H3/0684 ,  B65H3/0615 ,  B65H2403/42 ,  B65H2403/723 ,  B65H2403/732 ,  B65H2403/942 ,  B65H2404/1521 ,  G03G15/60 ,  H04N1/00567 ,  H04N1/00588 ,  H04N1/00591 ,  H04N1/00602 ,  H04N1/0062 ,  H04N1/00628 ,  H04N1/00655

    摘要： An ADF (Automatic Document Feeder) of the present invention includes a feed roller for feeding a document. A drive shaft causes the feed roller to rotate. A bracket is angularly movably supported by the drive shaft. A pickup roller is journalled to the support member, rotatable by being driven in interlocked relation to the feed roller, and movable, when the bracket is angularly moved, between a pickup position and a stand-by position. A clutch transmits the rotation of the drive shaft to the bracket. A drive transmission mechanism transmits the output torque of a motor to the drive shaft. A holding device holds the pickup roller. When the pickup roller is moved to the stand-by position, the drive transmission mechanism interrupts drive transmission to the drive shaft while the holding device holds the pickup roller at the stand-by position.

    摘要翻译： 本发明的ADF（自动输稿器）包括用于馈送文件的馈送辊。 驱动轴使进给辊旋转。 支架由驱动轴成角度地移动地支撑。 拾取辊轴承到支撑构件，通过与进给辊互锁地驱动而可旋转，并且当托架成角度地移动时，拾取辊可在拾取位置和待机位置之间移动。 离合器将驱动轴的旋转传递到支架。 驱动传递机构将电机的输出转矩传递给驱动轴。 保持装置保持拾取辊。 当拾取辊移动到待机位置时，驱动传动机构在保持装置将拾取辊保持在待机位置的同时中断到驱动轴的驱动传动。

    Sheet feeding apparatus and image forming apparatus
    2.
    发明公开
    Sheet feeding apparatus and image forming apparatus 有权
    供纸装置和图像形成装置

    公开(公告)号：EP1053961A3

    公开(公告)日：2002-07-17

    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 ,  B41J23/02

    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.

    Sheet feeding apparatus and image forming apparatus
    3.
    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。

    Paper feeding device
    8.
    发明公开
    Paper feeding device 失效
    造纸装置

    公开(公告)号：EP0137381A3

    公开(公告)日：1986-12-10

    申请号：EP84111250

    申请日：1984-09-20

    申请人： MITA INDUSTRIAL CO. LTD.

    发明人： Miyoshi, Yoshitake

    IPC分类号： G03B27/62

    CPC分类号： B65H3/5261 ,  B65H3/0684 ,  B65H2301/5122 ,  B65H2403/21 ,  B65H2403/723 ,  B65H2404/1119 ,  B65H2404/133 ,  G03B27/6264 ,  G03G15/602

    摘要： A paper feeding device comprising conveyor rollers including top rollers (9) and bottom rollers (10) which rotate in the same direction (L) and disposed on two shafts (18,19) individually so as to be alternately positioned, and timing rollers (12,13) provided on the downstream side of the conveyor rollers, wherein a center-to-center distance between the abovesaid two shafts (18,19) is adapted to be somewhat smaller than the sum of radii of the top and the bottom rollers (9,10), a recess (9a) is provided on each of the abovesaid top rollers (9) so that the recess faces the circumference of the bottom roller (10) when the tip of the sheet of paper as the original conveyed to the side of timing rollers (12,13) by said conveyor rollers abuts on the timing rollers.

    摘要翻译： 送纸装置包括输送辊，该输送辊包括上辊和底辊，它们沿相同的方向旋转并分别设置在两个交替位置的轴上。 在输送辊的下游侧设有定时辊。 两个轴之间的中心到中心的距离略小于顶部和底部辊的半径的总和。 当每个上滚筒上设有一个凹槽，使得当由输送辊输送到定时辊的原始纸张的前端抵靠定时辊时，凹槽面向底辊的圆周方向。

    Paper feeding device
    9.
    发明公开
    Paper feeding device 失效
    Blattzuführeinrichtung。

    公开(公告)号：EP0137381A2

    公开(公告)日：1985-04-17

    申请号：EP84111250.1

    申请日：1984-09-20

    申请人： MITA INDUSTRIAL CO. LTD.

    发明人： Miyoshi, Yoshitake

    IPC分类号： G03B27/62

    CPC分类号： B65H3/5261 ,  B65H3/0684 ,  B65H2301/5122 ,  B65H2403/21 ,  B65H2403/723 ,  B65H2404/1119 ,  B65H2404/133 ,  G03B27/6264 ,  G03G15/602

    摘要： A paper feeding device comprising conveyor rollers including top rollers (9) and bottom rollers (10) which rotate in the same direction (L) and disposed on two shafts (18,19) individually so as to be alternately positioned, and timing rollers (12,13) provided on the downstream side of the conveyor rollers, wherein a center-to-center distance between the abovesaid two shafts (18,19) is adapted to be somewhat smaller than the sum of radii of the top and the bottom rollers (9,10), a recess (9a) is provided on each of the abovesaid top rollers (9) so that the recess faces the circumference of the bottom roller (10) when the tip of the sheet of paper as the original conveyed to the side of timing rollers (12,13) by said conveyor rollers abuts on the timing rollers.

    摘要翻译： 送纸装置包括输送辊，该输送辊包括上辊和底辊，它们沿相同的方向旋转并分别设置在两个交替位置的轴上。 在输送辊的下游侧设有定时辊。 两个轴之间的中心到中心的距离略小于顶部和底部辊的半径的总和。 当每个上滚筒上设有一个凹槽，使得当由输送辊输送到定时辊的原始纸张的前端抵靠定时辊时，凹槽面向底辊的圆周方向。