An anti-derailment device for lift or elevator door leaves (2), of the type provided with at least one guide shoe (4) at the lower or upper end thereof, suitable for sliding in a groove (5) formed in a lower sill (6) of the door or defined in an upper recess of the door, is characterised in that it comprises an element (9), associated with the shoe (4), which is shaped like a hook and constructed from a bi-material. The element (9) has two opposing faces of different materials forming a thermal couple, the materials constituting each of the two faces having different thermal expansion coefficients so that the element (9) will hook to at least one corresponding bent edge (11) of the groove (5) in response to a heating stress of the leaf (2).


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    Title :

    ANTI-DERAILMENT DEVICE FOR LIFT OR ELEVATOR DOOR LEAVES


    Additional title:

    ENTGLEISUNGSSCHUTZVORRICHTUNG FÜR LIFT- ODER AUFZUGSTÜREN
    DISPOSITIF ANTI-DÉRAILLEMENT POUR PANNEAUX DE PORTE D'ASCENSEUR OU D'ÉLÉVATEUR


    Contributors:

    Publication date :

    2020-03-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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