A trolley assembly comprises a frame incorporating at least one tire encompassing a wheel bearing and a bumper comprising a first portion made of a comparably incompressible material and a second portion made of a comparably compressible material. The bumper is mounted on the frame such that the bumper moves upon impact with an object, compressing the compressible material. For example, the incompressible material may be a polyamide and the compressible material may be a neoprene extrusion.


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    Title :

    Trolley and track


    Contributors:
    WELDON MARK (author)

    Publication date :

    2018-01-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E05D Scharniere oder andere Aufhängevorrichtungen für Türen, Fenster oder Flügel , HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS, OR WINGS / B61B RAILWAY SYSTEMS , Eisenbahnanlagen



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