Tread for heavy-duty vehicle tire, having tread surface in the new state, having a first volume of cavities opening onto the tread surface, a second volume of cavities formed entirely under the tread surface and having at least one channel of height Hc delimited by two main walls spaced apart from one another by a width Lc and connected together by a lower part and by an upper part, this channel intended to form, after partial wear corresponding to a thickness Lu, an additional groove, such that each channel has a plurality of extensions forming cavities extending between this channel and the tread surface over a height He at least equal to 20% and at most equal to 75% of the thickness Lu, each extension opening at least into the upper part of the channel through an opening having a cross-sectional area Sa at least equal to 0.8*(Hc*Lc).


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    Titel :

    Tread Comprising Hidden Cavities and Grooves


    Beteiligte:
    BARDIN DAMIEN (Autor:in) / BERTHIER ROMAIN (Autor:in) / MARLIER FABIEN (Autor:in)

    Erscheinungsdatum :

    17.03.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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