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    Automatic sheet feeding mechanism
    1.
    发明公开
    Automatic sheet feeding mechanism 失效
    Automatischer Blattzufuhr机制

    公开(公告)号：EP0845429A1

    公开(公告)日：1998-06-03

    申请号：EP97306868.7

    申请日：1997-09-04

    申请人： Hewlett-Packard Company

    发明人： Padget, Martin Jay

    IPC分类号： B65H3/06 ,  B65H9/10

    CPC分类号： B65H3/0607 ,  B65H3/0638 ,  B65H3/34 ,  B65H3/5223 ,  B65H3/56 ,  B65H3/565 ,  B65H9/10 ,  B65H2301/4222 ,  B65H2404/121 ,  B65H2404/122 ,  B65H2601/2531 ,  Y10S271/902

    摘要： A sheet feeding mechanism including a pick apparatus for selectively moving a sheet of media from a stack. A kicker is disclosed in several embodiments and serves to retain media on the stack. In a first embodiment, a cam is coupled to the pick apparatus for deflecting the kicker from the first position at which it retains media on the stack to a second position at which paper is allowed to move through the mechanism. In a particular implementation of the first illustrative embodiment, the mechanism includes a frame and a shaft mounted on the frame for rotational movement relative thereto. The pick apparatus includes a pick tire mounted on the shaft and adapted to rotate therewith. The kicker is mounted on the frame for retaining media on the stack in a first position. The cam is adapted to deflect the kicker during a first portion of a rotational cycle and to release the kicker when the cam is in a second rotational position. In a second embodiment, the cam is contoured to provide a protruded edge which engages the kicker when the cam is counter-rotated. This forces the kicker to push media remaining on a separation roll back onto the stack and is particularly well suited for printers utilizing inclined media trays. In a third embodiment, the kicker is mounted on a shaft along with a separation roll. In a specific implementation of this embodiment, the kicker is a flexible strip of plastic that flexes as it engages the stack when the shaft is rotated and after it has rotated around, pushes media remaining on the separation roll back onto the stack. Finally, a fourth embodiment is disclosed by which the kickers are implemented with a plurality of small gravity actuated kickers mounted between two pick tires. The kickers are adapted to fall out of the way when the pick tires are rotating in a first direction and to fall into position to push media back onto the stack when the pick tires are counter-rotated.

    摘要翻译： 一种送纸机构，包括用于选择性地将纸张从纸叠移动的拾取装置。 在几个实施例中公开了一种踢球器，并用于将介质保持在堆叠上。 在第一实施例中，凸轮联接到拾取装置，用于使踢球器从第一位置偏转，在第一位置，其将纸张上的介质保持在第二位置，纸张被允许移动通过该机构。 在第一示例性实施例的特定实施方式中，该机构包括框架和安装在框架上的轴，用于相对于其旋转运动。 拾取装置包括安装在轴上并适于与其一起旋转的拾取轮胎。 踢球器安装在框架上，用于将纸张上的介质保持在第一位置。 凸轮适于在旋转周期的第一部分期间偏转踢球者，并且当凸轮处于第二旋转位置时释放踢球者。 在第二实施例中，当凸轮逆向旋转时，凸轮的轮廓被设计成提供与踢球器接合的突出边缘。 这迫使踢球者将残留在分离辊上的介质推回到堆叠上，并且特别适用于使用倾斜介质托盘的打印机。 在第三实施例中，踢球者与分离辊一起安装在轴上。 在该实施例的具体实施方式中，踢球者是一种柔性塑料条，当其旋转时，当其旋转时，它在与堆叠接合时弯曲，并且在旋转之后，将残留在分离辊上的介质推回到堆叠上。 最后，公开了一种第四实施例，通过该第四实施例，推杆具有安装在两个拾取轮胎之间的多个小重力驱动的推杆。 当拾取轮胎沿第一方向旋转并且当拾取轮胎反向旋转时，推动器适于脱离路径并且落入到位置以将介质推回到堆叠上。

    Automatic sheet feeding mechanism
    4.
    发明公开
    Automatic sheet feeding mechanism 失效
    AutomatischerBlattzuführmechanismus

    公开(公告)号：EP1199268A1

    公开(公告)日：2002-04-24

    申请号：EP02075141.8

    申请日：1997-09-04

    申请人： Hewlett-Packard Company

    发明人： Padget, Martin Jay

    IPC分类号： B65H3/06 ,  B65H3/56 ,  B65H3/52

    CPC分类号： B65H3/0607 ,  B65H3/0638 ,  B65H3/34 ,  B65H3/5223 ,  B65H3/56 ,  B65H3/565 ,  B65H9/10 ,  B65H2301/4222 ,  B65H2404/121 ,  B65H2404/122 ,  B65H2601/2531 ,  Y10S271/902

    摘要： An automatic sheet feeding mechanism comprising: first means (66,68) for selectively moving a sheet (33) of media from a stack (32); a separation roll (72") for engaging said sheet (33) of media, said separation roll (72") being mounted on a first shaft (65") and adapted to rotate therewith; and kicker means (76";77") for retaining media on said stack (32) in a first position, said kicker means (76";77") being mounted on said shaft (65") and adapted to rotate therewith.

    摘要翻译： 一种自动送纸机构，包括：第一装置（66,68），用于选择性地从纸叠（32）移动纸张（33）; 用于与所述纸张（33）接合的分离辊（72“），所述分离辊（72”）安装在第一轴（65“）上并适于与其一起旋转;以及推杆装置（76”; 77“） 用于将第一位置上的所述堆叠（32）上的保持介质保持在所述轴（65“）上并且适于随其一起旋转的所述踢击装置（76”; 77“）。

    Automatic sheet feeding mechanism
    6.
    发明公开
    Automatic sheet feeding mechanism 失效
    自动送纸机构

    公开(公告)号：EP1205412A1

    公开(公告)日：2002-05-15

    申请号：EP02075142.6

    申请日：1997-09-04

    申请人： Hewlett-Packard Company

    发明人： Padget, Martin Jay

    IPC分类号： B65H3/06 ,  B65H3/50 ,  B65H3/56

    CPC分类号： B65H3/0607 ,  B65H3/0638 ,  B65H3/34 ,  B65H3/5223 ,  B65H3/56 ,  B65H3/565 ,  B65H9/10 ,  B65H2301/4222 ,  B65H2404/121 ,  B65H2404/122 ,  B65H2601/2531 ,  Y10S271/902

    摘要： An automatic sheet feeding mechanism comprising:

    first and second kick tires (72''', 73''') mounted on a shaft (64) for selectively moving a sheet (33) of media from a stack (32); and
    kicker means mounted to said first and second kicker tires (72''', 73''') for retaining media on said stack (32) in a first position, said kicker means including plural blades (76''') pivotally mounted to said first and second kicker tires (72''', 73''') and mounted therebetween for rotational movement from said first position to a second position in response to gravity.

    摘要翻译： 一种自动送纸机构，包括：安装在轴（64）上的第一和第二反冲轮胎（72''，73'''），用于选择性地从堆（32）移动介质板（33）; 和用于将介质保持在所述堆垛（32）上的第一和第二推送器轮胎（72'''，73'''）的第一和第二推送器轮胎（7“'，7”'），所述推送器装置包括多个可枢转地安装的刀片 到所述第一和第二踢轮轮胎（72''，73'''）并且安装在它们之间，用于响应于重力从所述第一位置到第二位置的旋转运动。