Control for a door closer having a power-assist opening feature
    72.
    发明授权
    Control for a door closer having a power-assist opening feature 失效
    具有助力开启特征的门闭合器的控制

    公开(公告)号:US5251400A

    公开(公告)日:1993-10-12

    申请号:US905420

    申请日:1992-06-29

    Abstract: A control for a power-assist feature for an hydraulic closer is driven by structure mounted on the pinion shaft of the closer. It includes a pump-activating arm slidably mounted on the shaft, the end of the arm adapted to cover a pump-on sensor when the door is `bumped`. It also includes a follower rotatably mounted near the pinion and engageable escapement-fashion by a wheel in friction fit on the pinion shaft, the follower carrying a pump-deactivating arm, the end of the latter arm adapted to move away from a pump-off sensor when the door opens to its preset limit.

    Abstract translation: 用于液压闭合器的辅助功能的控制由安装在靠近器的小齿轮轴上的结构驱动。 它包括可滑动地安装在轴上的泵激活臂,当门被“碰撞”时,臂的端部适于覆盖泵送传感器。 它还包括可转动地安装在小齿轮附近的随动件,并且可通过摩擦配合在小齿轮轴上的轮进行可接合的擒纵机构,后者承载泵停用臂,后者臂的端部适于远离泵送 传感器当门打开到其预设极限。

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