Door control device
    1.
    发明授权
    Door control device 失效
    门控制装置

    公开(公告)号:US3860993A

    公开(公告)日:1975-01-21

    申请号:US32424273

    申请日:1973-01-16

    Inventor: MATUSKA JAMES E

    Abstract: A viscous fluid is contained between a housing and a rotor to dampen rotation of the rotor. A tension spring extending inside the rotor is connected at one end to a means for controlling spring loading, and at the other end to a drive shaft for controlling movement of a door. A clutch is located on the drive shaft to allow the spring to move the door and the rotor in one direction of rotation and to release the rotor upon counter rotation.

    Abstract translation: 在壳体和转子之间容纳粘性流体以阻尼转子的旋转。 在转子内部延伸的拉伸弹簧的一端连接到用于控制弹簧加载的装置,另一端连接到用于控制门的移动的驱动轴。 离合器位于驱动轴上,以允许弹簧在一个旋转方向上移动门和转子,并在反转时释放转子。

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