To provide a tyre/wheel assembly that exhibits excellent travel stability during run-flat travel and also is excellent in rim fitting, while maintaining, in normal travel, the same steering stability and ride quality as a conventional pneumatic tyre.SOLUTION: In a tyre/wheel assembly in which, on a rim 1 in a hollow part of a pneumatic tyre 2, a plurality of run-flat supports 3 separated in a tyre circumferential direction are coupled by belt like members 6 and are annularly arranged in the tire circumferential direction. Each run-flat support 3 comprises: a body part 4 formed from foam; and an outer peripheral part 5 disposed outside in a tyre radial direction. The thickness of the outer peripheral part 5 is 0.5 mm to 5.0 mm. The surface area of the outer peripheral part 5 brought into contact with a tyre inner peripheral surface during run-flat travel is 1/4 or more but 3/4 or less of the area of the tyre inner peripheral surface.SELECTED DRAWING: Figure 1

    【課題】通常走行時に、従来の空気入りタイヤと同等の操縦安定性、乗り心地を維持しながら、ランフラット走行時に、優れた走行安定性を有し、且つリム組み性に優れたタイヤ/ホイール組立体を提供する。【解決手段】空気入りタイヤ2の空洞部内のリム上1に、タイヤ周方向に複数に分割されたランフラット支持体3を、帯状部材6で連結しタイヤ周方向に環状に配置したタイヤ/ホイール組立体であって、ランフラット支持体3が、発泡体からなる本体部4と、そのタイヤ径方向外側に配置された外周部5とからなり、外周部5の厚さが0.5mm〜5.0mm、ランフラット走行時にタイヤ内周面と接する外周部5の表面積が、タイヤ内周面の面積の1/4以上3/4以下であることを特徴とする。【選択図】図1


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    Title :

    TYRE/WHEEL ASSEMBLY


    Additional title:

    タイヤ/ホイール組立体


    Contributors:

    Publication date :

    2019-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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