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    • 8. 发明授权
    • Sheet carrying device and image forming apparatus
    • 纸张承载装置和图像形成装置
    • US08910939B2
    • 2014-12-16
    • US13780030
    • 2013-02-28
    • Makoto NakuraNaoto UedaKoichi KudoShingo Takai
    • Makoto NakuraNaoto UedaKoichi KudoShingo Takai
    • B65H5/02B41J13/00G03G15/00
    • B41J13/0009G03G15/1615G03G15/6529G03G15/6561G03G21/1647G03G2221/1657
    • A disclosed sheet carrying device includes a first carrying unit that includes a first rotary body, a first driving unit outputting a driving force at a first peripheral speed, a one-way clutch transmitting the driving force only in a sheet carrying direction, and a second rotary body driven by the first rotary body via the sheet; and a second carrying unit including a third rotary body rotating at a second peripheral speed being the first peripheral speed or more, a fourth rotary body carrying the sheet with the third rotary body, a second driving unit outputting a driving force for driving the fourth rotary body at a third peripheral speed being the second peripheral speed or more, and a torque limiter having a slip torque smaller than a sheet carrying torque and cutting off the driving force while the sheet is interposed between the third and fourth rotary bodies.
    • 公开的片材承载装置包括第一承载单元,其包括第一旋转体,以第一圆周速度输出驱动力的第一驱动单元,仅在片材传送方向上传递驱动力的单向离合器, 由第一旋转体经由片材驱动的旋转体; 以及第二承载单元,其包括以第一圆周速度以上的第二圆周速度旋转的第三旋转体,具有第三旋转体的第四旋转体,第二驱动单元,其输出用于驱动第四旋转体的驱动力 第三圆周速度为第二圆周速度以上的扭矩限制器,以及转矩限制器,其具有小于输送力矩的滑动转矩,并且在片材插入在第三和第四旋转体之间时切断驱动力。