The invention provides a free-steering pulley device. The pulley device (200) comprises a permanent seat (1) and a rotation seat (2), wherein the rotation seat (2) is rotationally connected under the permanent seat (1); the rotation seat (2) is supported with a pulley body (24) through a pulley shaft (26), and the pulley body (24) is used for hanging a rope (100). The pulley body (24) in the free-steering pulley device (200) can rotate along with the rotation seat (2), so that the angle of the pulley body (24) can be adjusted timely along with the change of stress direction of the rope (100), and a part of horizontal pulleys and vertical pulleys can be omitted. Through the pulleys as few as possible, the right pulley-in angle of the rope (100) is ensured, and the complexity and the construction cost of pulley systems including the pulley device (200) and a horizontal-steering pulley (300) are reduced.


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    Title :

    Free-steering pulley device


    Publication date :

    2015-12-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66D Haspeln , CAPSTANS



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