Tread (1) for a heavy-duty vehicle tire having a total thickness corresponding to the thickness of material to be worn away during running, this tread having, in the new state, a tread surface (10) intended to come into contact with a roadway when running, this tread (1) comprising at least one hidden cavity (2) intended to form a new groove opening onto the tread surface after a predetermined amount of partial wear, this hidden cavity (2) comprising two opposite lateral walls (21, 22) connected together by a bottom (23) radially towards the inside and by a crown part (24) radially towards the outside, the tread according to invention being characterized in that the crown part (24) of the hidden cavity is provided with a plurality of fine ribs (25) extending radially towards the inside of the hidden cavity (2) from the crown part (24) delimiting the hidden cavity.


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    Titel :

    Tread Having Hidden Cavities


    Beteiligte:
    ZIVKOVIC TONY (Autor:in) / LARREGAIN ARNAUD (Autor:in)

    Erscheinungsdatum :

    07.11.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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