Provided is heavy load pneumatic radial tire capable of providing excellent durability by effectively preventing progression of fracture to low heat generation-type base rubber that contributes to improve high-speed durability. Heavy load pneumatic radial tire according to the present invention includes: tread rubber 6 having laminated structure of cap rubber 5 and base rubber 4; and four or more belt layers 3a-3e disposed radially inward of tread rubber 6. A radially outer side of a width direction side edge of at least one of radially outermost belt layer 3e and widest-width belt layer 3c is covered by reinforcing rubber layer 7 that terminates on a radially inner side of tread rubber 6 without reaching tire equatorial plane E. Relative relation between reinforcing rubber constituting reinforcing rubber layer 7 and base rubber 4 in terms of modulus of rebound elasticity satisfies the condition: reinforcing rubber < base rubber 4.


    Access

    Download


    Export, share and cite



    Title :

    HEAVY LOAD PNEUMATIC RADIAL TIRE


    Additional title:

    SCHWERLAST-RADIALLUFTREIFEN
    PNEU RADIAL POUR LOURDES CHARGES


    Contributors:

    Publication date :

    2017-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



    HEAVY LOAD PNEUMATIC RADIAL TIRE

    YAMADA ATSUSHI | European Patent Office | 2018

    Free access

    HEAVY LOAD PNEUMATIC RADIAL TIRE

    MATSUMURA HIROYUKI | European Patent Office | 2015

    Free access

    Heavy load pneumatic radial tire

    MATSUMURA HIROYUKI | European Patent Office | 2015

    Free access

    HEAVY LOAD PNEUMATIC RADIAL TIRE

    SATO AKIHITO | European Patent Office | 2018

    Free access

    PNEUMATIC RADIAL TIRE FOR HEAVY LOAD

    SONODA YUSUKE / KOJIMA KUNIHIRO | European Patent Office | 2019

    Free access