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    • 2. 发明授权
    • Roll sheet dispenser
    • 卷片机
    • US4192442A
    • 1980-03-11
    • US950830
    • 1978-10-12
    • Lehyman J. BastianRichard D. Kley
    • Lehyman J. BastianRichard D. Kley
    • B65H19/10A47K10/36B65H20/04F16H35/00G05G7/02B65H17/26
    • A47K10/36A47K10/3637
    • A sheet material dispensing apparatus wherein the sheet passes through a nip formed by a drive roller and a pressure roller. A lever is mounted for rotation about a first point and a gear segment is mounted for rotation about a second point. When the lever is rotated, a point or surface on the lever slidingly contacts a point or surface on the gear segment causing the gear segment to rotate through a greater angle than the lever. The teeth of the gear segment are operably engaged with gear means which causes rotation of the drive roller. In another aspect of the invention, the gear means for rotating the drive roller includes a floating gear mounted in a slot that is aligned generally parallel to the teeth of the gear segment and which causes rotation of the drive roller during one direction of travel of the gear segment and is disengaged from the drive roller during the other direction of travel of the lever. The invention also employs an overload mechanism which prevents excessive force from being applied to the gears in the event the dispenser becomes jammed.
    • 一种片材分配装置,其中片材通过由驱动辊和压力辊形成的辊隙。 安装杠杆以围绕第一点旋转,并且安装齿轮段以围绕第二点旋转。 当杠杆旋转时,杠杆上的点或表面滑动地接触齿轮段上的点或表面,使得齿轮段比杠杆更大的角度旋转。 齿轮段的齿与齿轮装置可操作地接合,这导致驱动辊的旋转。 在本发明的另一方面,用于旋转驱动辊的齿轮装置包括安装在槽中的浮动齿轮,其大致平行于齿轮段的齿排列,并且引起驱动辊在一个行进方向上的旋转 并且在杠杆的另一个行进方向处与驱动辊分离。 本发明还采用了过载机构,其在分配器卡住的情况下防止过大的力施加到齿轮上。