A caster structure in which a mark groove is provided in a tire of a wheel of a caster in which rotation of the wheel is braked by pressing a brake shoe onto the tire, characterized in that the mark groove in which a groove bottom portion is set to a predetermined depth is provided in an outer peripheral surface of the tire annularly along an outer periphery of the tire, and projecting portions for alarm each having an upper surface connecting right and left side walls forming the groove and closing the groove are provided in plural at predetermined intervals along an extending direction of the mark groove at a middle position of the depth between the groove bottom portion and a groove opening portion in the mark groove.


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    Title :

    CASTER STRUCTURE


    Contributors:

    Publication date :

    2019-12-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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