The invention relates to a drive machinery (M) for an elevator, the drive machinery (M) comprising a rotatable drive sheave (1) for driving plurality of ropes (2) of the elevator, and a motor (m) for rotating the drive sheave (1); the drive sheave (1) comprising a drive sheave body (3) rotatable around a rotational axis (X); and plurality of rim arrangements (4A) mounted on the drive sheave body (3) side by side in direction of said rotational axis (X), each said rim arrangement (4A) defining a circular outer rim (5) for transmitting traction to a rope (2), said circular outer rims (5) being coaxial with each other. The diameter (dl,d2) of the circular outer rim (5) of one or more of said rim arrangements (4A) is individually adjustable for enlarging or reducing the turning radius of a rope (2) passing around the circular outer rim (5) in question. The invention also relates to an elevator comprising said drive machinery (M).


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    Titel :

    ELEVATOR DRIVE MACHINERY AND ELEVATOR


    Weitere Titelangaben:

    AUFZUGSANTRIEBSMASCHINE UND AUFZUG
    MACHINERIE D'ENTRAÎNEMENT D'ASCENSEUR ET ASCENSEUR


    Beteiligte:

    Erscheinungsdatum :

    2021-10-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



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