A castor includes a castor body provided with an upper slideway, a lower slideway and a projection, two rollers mounted on the castor body, a first braking member pivotally connected with the castor body and provided with a protrusion, a second braking member mounted in the lower slideway, a sliding block mounted in the upper slideway of the castor body, a compression spring biased between the castor body and the sliding block, and a linear spring mounted between the projection of the castor body and the protrusion of the first braking member. Thus, the linear spring provides a restoring force to the protrusion of the first braking member and eliminates the stress applied on the protrusion of the first braking member and the projection of the castor body.


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    Title :

    Castor with two braking functions


    Contributors:

    Publication date :

    2015-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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