The present invention relates to a safety device for preventing a hand from being trapped in a gap between a door of an elevator and a doorframe thereof by installing optical sensors in a cage of theelevator without any reflection plate, wherein light-emitting sensors and light-receiving sensors are installed in only the cage to have a one-to-one correspondence relationship therebetween, therebyremoving inefficiency of installing optical sensors on all floors of a building.

    本发明涉及在没有反射板的情况下通过在电梯的轿厢设置光传感器来防止手夹在门与门框之间的缝隙的安全装置,即,通过仅在轿厢按1:1的对应关系设置多个发光传感器和多个受光传感器,来消除了需在建筑物的所有楼层都安装多个光传感器的非效率性。


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    Title :

    SAFETY DEVICE FOR PREVENTING ELEVATOR HAND TRAPPING


    Additional title:

    电梯的防夹手用安全装置


    Contributors:

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS / G01V Geophysik , GEOPHYSICS



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