To provide a retreaded tire that can suppress occurrence of a region with poor vulcanization of a tread rubber.SOLUTION: A retreaded tire comprises a base tire 20, a retreaded tread 2 arranged in a buff part 40 of the base tire 20, and a thermally-conductive layer 50 arranged between the retreaded tread 2 and the base tire 20. When a region positioned at a center in a tire width direction with a position away by 25% of a tire grounding width Tw from a tire grounding end T as a border in the retreaded tread 2 is defined as a center region Tc and regions positioned at both sides of the center region Tc are defined as shoulder regions Ts, rubber volumes Vc of the center region Tc and rubber volumes Vs of the shoulder regions Ts, in the retreaded tread 2, satisfy a relational expression of: (Vs/Vc)≤0.85. The thermally-conductive layer 50, whose thermal conductivity is higher than thermal conductivity of a tread rubber 4 constituting the retreaded tread 2, is arranged in a range of 0.7 times or more and 1.2 times or less of a range in which the center region Tc is positioned in the tire width direction.SELECTED DRAWING: Figure 1

    【課題】トレッドゴムの加硫不足となる領域が発生することを抑制することのできる更生タイヤを提供すること。【解決手段】台タイヤ20と、台タイヤ20のバフ部40に配設される更生トレッド2と、更生トレッド2と台タイヤ20との間に配設される熱伝導層50と、を備え、更生トレッド2における、タイヤ接地端Tからタイヤ接地幅Twの25%の位置を境としてタイヤ幅方向における中央に位置する領域をセンター領域Tcとし、センター領域Tcの両側に位置する領域をショルダー領域Tsとする場合に、更生トレッド2は、センター領域Tcのゴム体積Vcとショルダー領域Tsのゴム体積Vsとが(Vs/Vc)≦0.85の関係になっており、熱伝導層50は、熱伝導率が更生トレッド2を構成するトレッドゴム4の熱伝導率よりも高くなっており、タイヤ幅方向においてセンター領域Tcが位置する範囲の0.7倍以上1.2倍以下の範囲内に配置される。【選択図】図1


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    Title :

    RETREADED TIRE


    Additional title:

    更生タイヤ


    Contributors:

    Publication date :

    2018-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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