There is provided a crane winch device allowing a suspended load to freely fall due to a load thereof. The crane winch device includes a winch drum around which a rope for suspending the suspended load is wound, braking brake unit that brakes the winch drum, speed-increasing unit that performs speed-increasing assist of the winch drum in a direction of free fall acceleration when a braking force of the brake unit is smaller than a first threshold, and an adjustment unit that adjusts the first threshold.


    Access

    Download


    Export, share and cite



    Title :

    CRANE WINCH DEVICE AND CRANE


    Contributors:
    HONJO KOHEI (author)

    Publication date :

    2020-09-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66D Haspeln , CAPSTANS



    Crane winch protection device, crane and crane winch protection method

    XIE LANG / HUANG JIE | European Patent Office | 2020

    Free access

    Crane winch device and crane

    HONJO KOHEI | European Patent Office | 2021

    Free access

    WINCH DEVICE OF CRANE AND CRANE

    HONJO KOHEI | European Patent Office | 2020

    Free access

    WINCH MONITORING METHOD, WINCH MONITORING DEVICE, CRANE

    MAEFUJI TEPPEI / NAKAYAMA HIROKI / KUDARA KAZUFUMI et al. | European Patent Office | 2022

    Free access

    WINCH OPERATING DEVICE OF CRANE

    SEKINE AKIHIKO | European Patent Office | 2016

    Free access