A radial tire (10) for a heavy vehicle of construction plant type, and more particularly, to the sidewalls thereof (20), aims to reduce the surface cracking of the tire sidewalls and slow down the propagation of cracks in the thickness of the sidewall. The tire (10) comprises two sidewalls (20), each sidewall (20) consisting of a laminate comprising at least first and second sidewall layers (21, 22) that are axially superposed and have a total thickness E, the axially outermost first sidewall layer (21) having a thickness E1 and consisting of a elastomeric compound M1, the axially innermost second sidewall layer (22) having a thickness E2 and consisting of a second elastomeric compound M2. The thickness E1 is at most equal to 0.9 times the total thickness E, the thickness E2 is at least equal to the minimum value between 3 mm and 0.1 times the total thickness E, the first elastomer compound M1 has a number of cycles to failure NR1 at least equal to 150,000 cycles, the second elastomeric compound M2 has a number of cycles to failure NR2 at least equal to 300,000 cycles and the VP1/VP2 ratio of the respective crack propagation rates in the first and second elastomeric compounds (M1, M2) is at least equal to 1.25.


    Access

    Download


    Export, share and cite



    Title :

    TIRE SIDEWALL FOR A HEAVY DUTY CIVIL ENGINEERING VEHICLE


    Contributors:

    Publication date :

    2019-11-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



    Tire sidewall for a heavy duty civil engineering vehicle

    LEMARCHAND CHRISTOPHE / ROUSSEL CÉCILE / BELIN CÉCILE et al. | European Patent Office | 2022

    Free access

    Tire Sidewall for a Heavy Duty Civil Engineering Vehicle

    LEMARCHAND CHRISTOPHE / ROUSSEL CÉCILE / BELIN CÉCILE et al. | European Patent Office | 2020

    Free access

    Tire Sidewall For A Heavy Civil Engineering Vehicle

    FERLIN OLIVIER | European Patent Office | 2015

    Free access

    Tire sidewall for a heavy civil engineering vehicle

    FERLIN OLIVIER | European Patent Office | 2018

    Free access

    Tyre sidewall for a heavy duty civil engineering vehicle

    LEMARCHAND CHRISTOPHE / ROUSSEL CÉCILE / BELIN CÉCILE et al. | European Patent Office | 2024

    Free access