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    Expander device
    1.
    发明授权
    Expander device 失效
    膨胀装置

    公开(公告)号：US4156959A

    公开(公告)日：1979-06-05

    申请号：US641700

    申请日：1975-12-17

    申请人： August Weisenburger

    发明人： August Weisenburger

    IPC分类号： B25B27/12 ,  B25B27/30 ,  B23P19/08

    CPC分类号： B25B27/306 ,  B25B27/12 ,  Y10T29/53613

    摘要： An expander device, particularly for use in expanding springs, piston rings, circlips and similar objects, comprises a support member and an actuating member which are pivotally connected to one another and equipped with handgrip portions. A pair of expanding jaws is mounted on the support member for pivoting in a plane which is parallel to the axis of pivoting of the actuating member relative to the support member. A transmission converts the pivoting of the actuating member into spreading apart of the jaws, the transmission including a ratchet mechanism which includes a toothed rack mounted on a guide track for movement in the frontward direction of the device, a transporting pawl which is actuated by the actuating member so as to engage the teeth of the rack and to move the latter, and an arresting pawl which arrests the rack against movement in the rearward direction of the support member. Connecting links are pivoted to the rack, on the one hand, and to the jaws, on the other hand and cause the jaws to spread apart as the rack moves in the frontward direction so as to expand an object extending between the free ends of the jaws. The jaws may include separate lever and jaw elements, and additional connecting links may be provided which pivotally connect the respective jaw element with the other lever element on which the other jaw element is pivoted. The additional links may be guided on the other lever elements in elongated slots, and arrested in a plurality of positions in such slots.

    摘要翻译： 特别是用于膨胀弹簧，活塞环，卡簧和类似物体的膨胀器装置包括支承件和致动件，这些支承件和致动件彼此枢转地相互连接并装有手柄部分。 一对扩张钳口安装在支撑构件上，用于在平行于致动构件相对于支撑构件的枢转轴线的平面中枢转。 变速器将致动构件的枢转转换成颚的扩展分开，传动装置包括棘轮机构，该棘轮机构包括安装在导轨上的齿条，用于沿装置的前方移动;传动棘爪，其由 致动构件，以便接合齿条的齿并使其移动;以及止动爪，其阻止齿条在支撑构件的向后方向上的运动。 另一方面，连接件一方面枢转到机架，另一方面枢轴转动，并且当机架向前移动时，使夹爪分开，以便扩展在物体的自由端之间延伸的物体 颚。 夹爪可以包括单独的杆和钳口元件，并且可以提供额外的连接链节，其将相应的钳口元件与另一个爪元件枢转连接的另一杠杆元件枢转连接。 附加连杆可以在细长槽中的另一杠杆元件上引导，并且在这些槽中的多个位置中被阻止。