The invention relates to an unlocking device (1), comprising an actuator (2), by means of which a safety cover (30) of a maintenance opening (40) can be released for opening. In addition, the unlocking device (1) has a safety circuit (5), by means of which the actuator (2) can be activated. The invention is characterized in that the safety circuit (5) comprises at least a first switching contact (6) and a second switching contact (7), which is arranged in series, wherein the actuator (2) can be connected to an energy source (V) by means of the safety circuit (5) when the first and the second switching contacts (6, 7) are in the closed state and the first switching contact can be switched by means of a control unit. The invention relates to an elevator apparatus (10) having said unlocking device (1) and a method for actuating the unlocking device (1).


    Access

    Download


    Export, share and cite



    Title :

    Unlocking device, elevator system having an unlocking device, and method for actuating an unlocking device


    Contributors:

    Publication date :

    2018-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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

    STUDER CHRISTIAN / BITZI RAPHAEL | European Patent Office | 2017

    Free access

    Unlocking device, elevator system having an unlocking device, and method for actuating an unlocking device

    STUDER CHRISTIAN / BITZI RAPHAEL | European Patent Office | 2020

    Free access

    ELEVATOR DOOR UNLOCKING DEVICE

    YOSHINAGA RYO | European Patent Office | 2025

    Free access

    Elevator landing unlocking device

    JIANG JI / LU YUEHUA / JIA XUECHENG et al. | European Patent Office | 2021

    Free access

    ELEVATOR DOOR UNLOCKING DEVICE

    KOBAYASHI KENJI | European Patent Office | 2021

    Free access