PROBLEM TO BE SOLVED: To provide a retreated tire which improves direct advance performance and of which uneven wear of a shoulder part does not occur.SOLUTION: A retreated tire 1 is manufactured by combination of a base tire which satisfies T1w/B0w≥1.50 and a retreated tread when a width of a belt, which becomes a maximum width at an existing belt layer of the base belt 20, is represented by B0w and a width of the retreated tread is represented by T1w. An additional belt layer B1 having a rigidity and a strength of degrees same as or more than that of the belt which becomes a maximum width at the existing belt layer of the base belt is located on an outer side of a buff boundary face of a buff crown width BFw. When a width of the additional belt layer is represented by B1w, the width B1w and the tread width T1w satisfy 1.00≤T1w/B1w≤1.50, and B0w≤B1w≤BFw is satisfied. When a shoulder width of the buff boundary face is represented by BFw, B0w×1.05≤BFw≤T1w×0.95 and 0.96≤B1w/BFw<1.00 are satisfied.SELECTED DRAWING: Figure 5
【課題】直進性能を向上させ、かつ、タイヤのショルダー部の偏摩耗が発生しない更生タイヤを提供する。【解決手段】更生タイヤ1は、台タイヤ20の既存のベルト層で最大幅となるベルトの幅をB0w、更生トレッドの幅をT1wとした場合に、T1w/B0w≧1.50である台タイヤと更生トレッドとを組み合わせて製造され、台タイヤの既存のベルト層で最大幅となるベルトと同程度以上の剛性および強力を有する追加ベルト層B1を、バフクラウン幅BFwのバフ界面の外側に配置し、追加ベルト層の幅をB1wとした場合、トレッド幅T1wに対し、1.00≦T1w/B1w≦1.50およびB0w≦B1w≦BFwを満たし、かつ、バフ界面のショルダー幅をBFwとした場合、B0w×1.05≦BFw≦T1w×0.95および0.96≦B1w/BFw<1.00を満たす。【選択図】図5
RETREATED TIRE
更生タイヤ
2018-05-10
Patent
Electronic Resource
Japanese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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