An apparatus includes a motor and a drum rotated by the motor to draw in or let out a line from the drum. The drum includes a groove formed in an outer surface thereof to accommodate the line. In certain embodiments, a depth of the groove is equal to or greater than a radius of the line. In the same or other embodiments, a passive guide that physically engages and tracks the groove may be used to guide the line into the groove.


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    Title :

    Grooved drum and associated passive guide for motorized lifting device


    Contributors:
    HALL DAVID R (author) / MILES JEROME (author) / HALL MICHAEL (author) / MADSEN DANIEL (author)

    Publication date :

    2017-02-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66D Haspeln , CAPSTANS



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