An unlocking device with an actuator releases a safety cover of a maintenance opening for opening. The locking device has a safety circuit for actuating the actuator. The safety circuit includes at least one first switching contact and a second switching contact arranged in series, wherein the actuator in a closed state of the first and the second switching contacts is connected by the safety circuit with a power source, and the first switching contact can be switched by a control unit. One or more of the unlocking device can be used in an elevator system.


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    Title :

    UNLOCKING DEVICE, ELEVATOR SYSTEM HAVING AN UNLOCKING DEVICE, AND METHOD FOR ACTUATING AN UNLOCKING DEVICE


    Contributors:

    Publication date :

    2017-11-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS / E05B LOCKS , Schlösser



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