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    • 2. 发明授权
    • Variable support for fan-folded paper dispenser
    • 风扇折叠纸分配器的可变支撑
    • US5065895A
    • 1991-11-19
    • US388396
    • 1989-08-02
    • Raymond F. De LucaPaul W. Jespersen
    • Raymond F. De LucaPaul W. Jespersen
    • A47K10/34
    • A47K10/34
    • A dispesner for a stack of fan-folded sheet material is disclosed. The dispenser housing has a pivoting brake at the rear wall and contains a major support roller at a height above the rear support rollers to minimize the weight of the stack on the rear support rollers. The major support roller is movably mounted in a pair of vertically-disposed slots and connected at either end to one of a pair of pivot arms. The pivot arms are connected across the width of the dispenser by a connector. The weight of the stack causes the major suport roller to move downwardly in the vertically disposed slots which causes the pivot arms to rotate in the clockwise direction. The clockwise rotation of the pivot arms brings the connector into contact with the pivoting brake which presses against the stack of sheet material in the lateral direction. The lateral pressure on the sheet material decreases the vertical pressure on the bottommost piece of sheet material making it easier for such piece to be removed intact from the dispenser. A piece of friction material may be placed along the inner surface of the front of the dispenser to provide additonal friction on the stack to further decrease the vertical pressure on the bottommost piece of sheet material. An alternative embodiment uses a flat spring in lieu of the pivoting brake, pivot arms and connector. Another alternative embodiment uses two pivoting rollers and a rear brake which forms part of the back wall and is pivotally connected to each side of the dispenser.
    • 公开了一种风扇折叠片材的叠层分配器。 分配器壳体在后壁处具有枢转制动器,并且在后支撑辊上方包含高度支撑辊,以最小化后支撑辊上的堆叠的重量。 主支撑辊可移动地安装在一对垂直设置的槽中,并且在任一端连接到一对枢转臂中的一个。 枢转臂通过连接器连接在分配器的宽度上。 堆叠的重量导致主要的上升辊在垂直设置的槽中向下移动,这导致枢转臂沿顺时针方向旋转。 枢转臂的顺时针旋转使得连接器与枢转制动器接触,该枢转制动器在横向方向上挤压片材的堆叠。 片材上的侧向压力降低了最下面的片材的垂直压力,使得更容易将这种片从分配器中完整地移除。 可以沿着分配器的前部的内表面放置一块摩擦材料,以在叠层上提供额外的摩擦力,以进一步降低最底层的片材上的垂直压力。 替代实施例使用平板弹簧来代替枢转制动器,枢转臂和连接器。 另一替代实施例使用两个枢转辊和后制动器,该后制动器形成后壁的一部分并且枢转地连接到分配器的每一侧。