SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS
    3.
    发明申请
    SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS 失效
    纸张进给装置和图像形成装置

    公开(公告)号:US20120242033A1

    公开(公告)日:2012-09-27

    申请号:US13409577

    申请日:2012-03-01

    IPC分类号: B65H3/06

    摘要: The sheet feeding apparatus includes a feeding roller that includes an arc-shaped friction portion and a notch portion, and causes the friction portion to feed the sheet; a feeding motor rotationally driving the feeding roller; a separation pad that presses the sheet fed by the friction portion on a surface other than a surface at the friction portion, and separates a double-fed sheet; and a feeding spring that causes the sheet supporting portion to wait below the feeding roller such that the sheet supported on the sheet supporting portion is not in contact with the friction portion until the friction portion reaches the separation pad, and, when the friction portion reaches the separation pad, moves up the sheet supporting portion to an abutting position at which the sheet supported on the sheet supporting portion is pressed against the friction portion and the friction portion feeds the sheet.

    摘要翻译: 片材进给装置包括:进给辊,其包括弧形摩擦部分和切口部分,并使摩擦部分进给片材; 进给马达旋转地驱动进给辊; 分离垫,其将由所述摩擦部分供给的所述片材挤压在所述摩擦部分的除了表面之外的表面上,并分离双重供给的片材; 以及进给弹簧,其使片材支撑部等待进给辊的下方,使得支撑在片材支撑部分上的片材不与摩擦部分接触,直到摩擦部分到达分离垫,并且当摩擦部分到达时 分离垫将片材支撑部分向上移动到支撑在片材支撑部分上的片材被压靠在摩擦部分上并且摩擦部分馈送片材的邻接位置。

    Sheet feeding apparatus and image forming apparatus
    4.
    发明授权
    Sheet feeding apparatus and image forming apparatus 失效
    送纸装置和成像装置

    公开(公告)号:US08752823B2

    公开(公告)日:2014-06-17

    申请号:US13409577

    申请日:2012-03-01

    IPC分类号: B65H3/06

    摘要: The sheet feeding apparatus includes a feeding roller that includes an arc-shaped friction portion and a notch portion, and causes the friction portion to feed the sheet; a feeding motor rotationally driving the feeding roller; a separation pad that presses the sheet fed by the friction portion on a surface other than a surface at the friction portion, and separates a double-fed sheet; and a feeding spring that causes the sheet supporting portion to wait below the feeding roller such that the sheet supported on the sheet supporting portion is not in contact with the friction portion until the friction portion reaches the separation pad, and, when the friction portion reaches the separation pad, moves up the sheet supporting portion to an abutting position at which the sheet supported on the sheet supporting portion is pressed against the friction portion and the friction portion feeds the sheet.

    摘要翻译: 片材进给装置包括:进给辊,其包括弧形摩擦部分和切口部分,并使摩擦部分进给片材; 进给马达旋转地驱动进给辊; 分离垫,其将由所述摩擦部分供给的所述片材挤压在所述摩擦部分的表面以外的表面上,并且分离双重供给的片材; 以及进给弹簧,其使片材支撑部等待进给辊的下方,使得支撑在片材支撑部分上的片材不与摩擦部分接触,直到摩擦部分到达分离垫,并且当摩擦部分到达时 分离垫将片材支撑部分向上移动到支撑在片材支撑部分上的片材被压靠在摩擦部分上并且摩擦部分馈送片材的邻接位置。

    Sheet feeding apparatus and image forming apparatus
    5.
    发明授权
    Sheet feeding apparatus and image forming apparatus 有权
    送纸装置和成像装置

    公开(公告)号:US08616545B2

    公开(公告)日:2013-12-31

    申请号:US13406995

    申请日:2012-02-28

    IPC分类号: B65H3/06

    摘要: A link member is rotatably supported by a lifting plate. When the lifting plate moves upward and downward, the movement of the link member is guided by a guide portion provided on a link guide hole. Before sheet feeding starts, the movement of the link member is regulated by a holding portion provided on a lower end of the guide portion so as to hold the lifting plate in a standby position against a biasing force of a feed spring. When the sheet is fed, a feed cam rotating integrally with a feed roller presses the link member to release the link member from being locked by the holding portion of the link guide hole to thereby make the link member movable along the guide portion.

    摘要翻译: 连杆构件由提升板可旋转地支撑。 当升降板向上和向下移动时,连杆构件的移动由设置在连杆导向孔上的引导部分引导。 在片材进给开始之前,连杆构件的移动由设置在引导部的下端的保持部限制,以便克服馈送弹簧的偏压力将提升板保持在待机位置。 当进给片材时,与进给辊一体旋转的进给凸轮压紧连杆构件以将连杆构件从连杆导向孔的保持部分锁定,从而使连杆构件沿导向部分移动。

    SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS
    6.
    发明申请
    SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS 有权
    纸张进给装置和图像形成装置

    公开(公告)号:US20120235347A1

    公开(公告)日:2012-09-20

    申请号:US13406995

    申请日:2012-02-28

    IPC分类号: B65H3/06 B65H5/06 B65H1/08

    摘要: A link member is rotatably supported by a lifting plate. When the lifting plate moves upward and downward, the movement of the link member is guided by a guide portion provided on a link guide hole. Before sheet feeding starts, the movement of the link member is regulated by a holding portion provided on a lower end of the guide portion so as to hold the lifting plate in a standby position against a biasing force of a feed spring. When the sheet is fed, a feed cam rotating integrally with a feed roller presses the link member to release the link member from being locked by the holding portion of the link guide hole to thereby make the link member movable along the guide portion.

    摘要翻译: 连杆构件由提升板可旋转地支撑。 当升降板向上和向下移动时,连杆构件的移动由设置在连杆导向孔上的引导部分引导。 在片材进给开始之前,连杆构件的移动由设置在引导部的下端的保持部限制,以便克服馈送弹簧的偏压力将提升板保持在待机位置。 当进给片材时,与进给辊一体旋转的进给凸轮压紧连杆构件以将连杆构件从连杆导向孔的保持部分锁定,从而使连杆构件沿导向部分移动。

    Sheet feeding apparatus and image forming apparatus
    7.
    发明授权
    Sheet feeding apparatus and image forming apparatus 有权
    送纸装置和成像装置

    公开(公告)号:US08511671B2

    公开(公告)日:2013-08-20

    申请号:US13159825

    申请日:2011-06-14

    IPC分类号: B65H3/06

    摘要: The present invention provides a sheet feeding apparatus including a sheet stacking portion, a feeding roller, a biasing member, and a cam member, wherein a predetermined idling section in which the feeding roller does not work with rotation of the feeding shaft is provided between the feeding roller and the feeding shaft, the sheet feeding apparatus comprises a returning mechanism which returns the feeding roller to the initial feeding position after the feeding roller finishes feeding the sheet on the sheet stacking portion, and when a sheet feeding operation is started, at a time when the cam member starts rotating together with the feeding shaft and passes the idling section, the feeding roller starts rotating, feeds out the sheet on the sheet stacking portion and then is returned to the initial feeding position by the returning mechanism.

    摘要翻译: 本发明提供了一种片材进给装置,其包括片材堆叠部分,进给辊,偏压件和凸轮件,其中,在进给辊不能与进给轴旋转的预定怠速部分之间设置 进给辊和进给轴,片材进给装置包括一个返回机构,该退回机构在进给辊完成在片材堆叠部分上输送片材之后将进给辊返回到初始进给位置,并且当片材进给操作开始时 当凸轮构件与进给轴一起开始旋转并通过怠速部分时,进给辊开始旋转,将纸张送出在纸张堆叠部分上,然后由返回机构返回到初始进给位置。

    SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS
    8.
    发明申请
    SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS 有权
    纸张进给装置和图像形成装置

    公开(公告)号:US20110316223A1

    公开(公告)日:2011-12-29

    申请号:US13155798

    申请日:2011-06-08

    IPC分类号: B65H3/06 B65H1/08

    摘要: At a start of sheet feeding operation, a feed cam starts to rotate in association with rotation of a feed shaft and a feed roller starts to rotate from a time when the feed shaft has passed an idle zone, so as to send out each of sheets on a rising and lowering plate. After that, the feed roller is returned to a feed initial position by a return mechanism including a conveyance roller and a feed rotatable member. A cam curve of the feed cam reduces a rising speed as compared to a rising speed of a conventional rising and lowering plate, and reduces generation of noise at the time of collision between the sheets on the rising and lowering plate and the feed rotatable member. Thus, an image forming apparatus having lower noise level can be provided.

    摘要翻译: 在进纸操作开始时,进给凸轮与进给轴的旋转一起开始旋转,并且进给辊从进给轴已经经过空转区域的时刻开始旋转,从而将每个薄片 在升降板上。 此后,通过包括输送辊和进给可旋转构件的返回机构将进给辊返回到进给初始位置。 与常规升降板的上升速度相比,进给凸轮的凸轮曲线减小了上升速度,并且降低了升降板和进给可旋转部件之间的片材之间的碰撞时的噪音的产生。 因此,可以提供具有较低噪声水平的图像形成装置。

    Sheet feeding apparatus and image forming apparatus
    9.
    发明授权
    Sheet feeding apparatus and image forming apparatus 有权
    送纸装置和成像装置

    公开(公告)号:US08342509B2

    公开(公告)日:2013-01-01

    申请号:US13155798

    申请日:2011-06-08

    IPC分类号: B65H3/06

    摘要: At a start of sheet feeding operation, a feed cam starts to rotate in association with rotation of a feed shaft and a feed roller starts to rotate from a time when the feed shaft has passed an idle zone, so as to send out each of sheets on a rising and lowering plate. After that, the feed roller is returned to a feed initial position by a return mechanism including a conveyance roller and a feed rotatable member. A cam curve of the feed cam reduces a rising speed as compared to a rising speed of a conventional rising and lowering plate, and reduces generation of noise at the time of collision between the sheets on the rising and lowering plate and the feed rotatable member. Thus, an image forming apparatus having lower noise level can be provided.

    摘要翻译: 在进纸操作开始时,进给凸轮与进给轴的旋转一起开始旋转,并且进给辊从进给轴已经经过空转区域的时刻开始旋转,从而将每个薄片 在升降板上。 此后,通过包括输送辊和进给可旋转构件的返回机构将进给辊返回到进给初始位置。 与常规升降板的上升速度相比,进给凸轮的凸轮曲线减小了上升速度,并且降低了升降板和进给可旋转部件之间的片材之间的碰撞时的噪音的产生。 因此,可以提供具有较低噪声水平的图像形成装置。

    SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS
    10.
    发明申请
    SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS 有权
    纸张进给装置和图像形成装置

    公开(公告)号:US20110316222A1

    公开(公告)日:2011-12-29

    申请号:US13159825

    申请日:2011-06-14

    IPC分类号: B65H1/12 B65H3/06

    摘要: The present invention provides a sheet feeding apparatus including a sheet stacking portion, a feeding roller, a biasing member, and a cam member, wherein a predetermined idling section in which the feeding roller does not work with rotation of the feeding shaft is provided between the feeding roller and the feeding shaft, the sheet feeding apparatus comprises a returning mechanism which returns the feeding roller to the initial feeding position after the feeding roller finishes feeding the sheet on the sheet stacking portion, and when a sheet feeding operation is started, at a time when the cam member starts rotating together with the feeding shaft and passes the idling section, the feeding roller starts rotating, feeds out the sheet on the sheet stacking portion and then is returned to the initial feeding position by the returning mechanism.

    摘要翻译: 本发明提供了一种片材进给装置,其包括片材堆叠部分,进给辊,偏压件和凸轮件,其中,在进给辊不能与进给轴旋转的预定怠速部分之间设置 进给辊和进给轴,片材进给装置包括一个返回机构,该退回机构在进给辊完成在片材堆叠部分上输送片材之后将进给辊返回到初始进给位置,并且当片材进给操作开始时 当凸轮构件与进给轴一起开始旋转并通过怠速部分时,进给辊开始旋转,将纸张送出在纸张堆叠部分上,然后由返回机构返回到初始进给位置。