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    • 24. 发明授权
    • Sheet feeding apparatus
    • 送纸装置
    • US5249795A
    • 1993-10-05
    • US989948
    • 1992-12-10
    • Yoshifumi Nishimoto
    • Yoshifumi Nishimoto
    • B65H5/00B65H7/02
    • B65H7/02B65H5/008B65H2511/20B65H2511/212B65H2513/10B65H2513/11B65H2515/34B65H2515/50B65H2553/41B65H2553/61B65H2555/41
    • The present invention provides a sheet feeding apparatus comprising a feeding device for feeding a sheet, in which the sheet (member to be fed) is urged against surfaces of elastic members that are opposed to surfaces on which vibration elements are fixedly mounted, and a frequency voltage is applied to the vibration elements to create vibration waves in the elastic members, whereby a feeding force is supplied to the sheet by vibrating surfaces of the elastic members on which the vibration waves are created. A detecting device is also provided for detecting a feeding amount of the sheet. The apparatus is adapted to urge and pinch the sheet by a rotary shaft of a rotation angle detection device or a roller fixed to the rotary shaft and a rotatable pressure roller disposed in confronting relation to the aforementioned roller. The pressure roller of the sheet feeding amount detecting device or the rotation angle detection device is attached to a pressurizing device which can vary an urging force acting on the sheet.
    • 本发明提供了一种片材进给装置,其包括用于供给片材的供给装置,其中片材(被供给的构件)被推压到与固定安装振动元件的表面相对的弹性构件的表面上,频率 对振动元件施加电压,从而在弹性部件中产生振动波,由此通过产生振动波的弹性部件的振动面向片材供给供给力。 还设置有用于检测片材的进给量的检测装置。 该装置适于通过旋转角度检测装置的旋转轴或固定在旋转轴上的辊和与上述辊相对设置的可旋转压力辊来推压和夹紧片材。 片材进给量检测装置或旋转角度检测装置的加压辊安装在加压装置上,该加压装置可以改变作用在片材上的作用力。