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    Retraction spring for clutches, brakes and like devices
    2.
    发明授权
    Retraction spring for clutches, brakes and like devices 失效
    离合器，制动器和类似装置的回退弹簧

    公开(公告)号：US3669232A

    公开(公告)日：1972-06-13

    申请号：US3669232D

    申请日：1970-09-03

    申请人： CATERPILLAR TRACTOR CO

    发明人： ROHWEDER GERALD D ,  WINDISH WILLIS E

    IPC分类号： F16D25/0635 ,  F16D55/224 ,  F16D55/32 ,  F16H57/10 ,  F16D19/00

    CPC分类号： F16D55/32 ,  F16D25/0635 ,  F16D55/224 ,  F16H57/10

    摘要： A clutch or brake comprises at least one annular piston reciprocally mounted therein to be selectively moved to compress an annular pressure plate against a friction disc for clutching or braking purposes. A plurality of circumferentially disposed Ushaped resilient pincher-like retraction springs each comprises parallel first and second leg portions connected together by an intermediate portion. The springs are arranged to have each first leg portion engage the piston to urge it towards its retracted position and away from the pressure plate. In one embodiment of this invention, employing a single piston, the second leg portion of the spring engages in a recess formed on a housing having the piston mounted therein. In a second embodiment, employing two back-to-back pistons each positioned adjacent to a friction disc, each leg portion of the spring engages a respective one of the pistons to urge them towards each other.

    摘要翻译： 离合器或制动器包括往复安装在其中的至少一个环形活塞以选择性地移动以将环形压板压靠在摩擦盘上用于抓住或制动目的。 多个沿圆周方向设置的U形弹性捏合器缩回弹簧各自包括通过中间部分连接在一起的平行的第一和第二腿部。 弹簧被布置成使得每个第一腿部部分接合活塞以将其推向其缩回位置并远离压力板。 在本发明的一个实施例中，使用单个活塞，弹簧的第二腿部接合在形成在其上安装有活塞的壳体上的凹部中。 在第二实施例中，采用每个靠近摩擦盘定位的两个背对背活塞，弹簧的每个腿部与相应的一个活塞接合以将它们朝向彼此推动。