A vehicle tire having two beads comprising metal/non-metal hybrid bead cores intended to come into contact with a wheel rim and a carcass reinforcement anchored by a bead core located in each bead, wherein the bead core includes a plurality of separate spirally-wound reinforcements that are placed adjacent to one another in a substantially axial arrangement. The innermost of the spirally-wound reinforcements, the one farthest from the reinforcement turn-up, is formed of a first metal wire and there is a non-metallic wire forming a second reinforcement. The metal wire has an elongation at break that is at least 40% greater than an elongation at break of the nonmetallic wire or alternatively at least 100% or at least 200% greater than the elongation at break of the non-metallic wire. Optionally wires of other metals or nonmetals may be useful for forming others of the plurality of spirally-wound reinforcements.


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    Title :

    HYBRID BEAD CORES FOR TIRES


    Additional title:

    HYBRIDWULSTKERNE FÜR REIFEN
    TRINGLES DE TALON HYBRIDES POUR PNEUMATIQUES


    Contributors:

    Publication date :

    2021-04-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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    BUCHER LAURENT | European Patent Office | 2017

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    BUCHER LAURENT | European Patent Office | 2017

    Free access