To provide an automobile pneumatic radial tire satisfied in both noise suppression properties and tire durability.SOLUTION: An automobile pneumatic radial tire includes a carcass striding in a toroidal manner between a pair of bead parts and composed of a ply of a radial array cord. A section width SW and an outer diameter OD of the tire satisfies a predetermined relational expression. On an inner surface of the tire, a noise suppression body is provided. The noise suppression body continuously extends to stride both halves bordered by a tire equator plane in a tire width direction. Each end part of the noise suppression body is positioned in a tire radial direction region extending from a bead base line being a virtual line through a bead base and parallel to the tire width direction to a tire-radial-direction position spaced away from the bead base line toward an outer side in a tire radial direction by 70% of a tire cross section height SH.SELECTED DRAWING: Figure 2

    【課題】本発明は、制音性とタイヤ耐久性とを両立させた、乗用車用空気入りラジアルタイヤを提供することを目的とする。【解決手段】本発明の乗用車用空気入りラジアルタイヤは、一対のビード部間でトロイダル状に跨る、ラジアル配列コードのプライからなるカーカスを備え、前記タイヤの断面幅SW及び外径ODは、所定の関係式を満たし、前記タイヤの内面に制音体を設け、前記制音体は、タイヤ赤道面を境界とするタイヤ幅方向両半部間に跨って連続して延在し、前記制音体の各端部は、ビードベースを通りタイヤ幅方向に平行な仮想線であるビードベースラインから、該ビードベースラインからタイヤ径方向外側にタイヤ断面高さSHの70%離間したタイヤ径方向位置までの、タイヤ径方向領域に位置する。【選択図】図2


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    Title :

    AUTOMOBILE PNEUMATIC RADIAL TIRE


    Additional title:

    乗用車用空気入りラジアルタイヤ


    Contributors:

    Publication date :

    2020-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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