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Pneumatic tire having thin tread reinforcing layer embedded in the outermost layer of a tread portion
Pneumatic tire having thin tread reinforcing layer embedded in the outermost layer of a tread portion
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机译:在胎面部的最外层埋设有薄胎面补强层的充气轮胎
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摘要
In a pneumatic tire of the present invention, a tread reinforcing rubber layer composed of a rubber having larger tensile modulus of elasticity than that of a rubber composing the tread rubber layer and is less stretchable is provided in a thickness direction central area of a tread rubber layer. Because the tread reinforcing rubber layer diminishes the amount of lateral expansion and the amount of vertical compressive deformation when the tread rubber layer contacts the ground, generation of heat in the tread rubber layer can be suppressed. Therefore, in the present invention, the unique tread structure reliably suppresses heat-generation and the rubber of the tread rubber layer exhibits excellent tire wear resistance. As a result, suppression of heat-generation and high tire resistance can readily be achieved simultaneously.
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