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    • 10. 发明专利
    • Pneumatic tire with durability improved
    • 具有耐久性改善的气动轮胎
    • JPS61119406A
    • 1986-06-06
    • JP23978984
    • 1984-11-14
    • Bridgestone Corp
    • OGAWA MASAKIYAHAGI MASAHISATANAKA TSUTOMUKUDO TAKAFUMI
    • B60C9/18B60C9/20
    • B60C9/1821
    • PURPOSE:To prevent possible damage due to peeling between belt layers by arranging a rubber spacer, which is composed of a composition of rubber with short fibers that have the stated dimension and are mixed with the stated ratio, between adjacently plied belt layers embedded between a carcass ply and a treat, at their both sides. CONSTITUTION:A pneumatic tire 1 includes a carcass ply 5 which is composed of a rubber coated layer where numbers of cords are arranged in parallel, a belt 6 which is located on the outer circumference of the carcass ply and is composed of steel cords, and a tread 7 which is located on the outer circumference of the belt. In this case, a belt cord in a belt layer out of numbers of belt layers which compose the belt 6, intersects with a belt cord in the adjacent belt layer with the angle of smaller than 60 deg. across the equator surface of a tire. In addition, a rubber spacer 8 with a cross-section of an approximate triangle form, is arranged between adjacently plied belt layers at their both sides. This rubber spacer 8 is made of a composition of rubber with short fibers of more than 5pts.wt. Here, the short fibers have an average diameter of smaller than 1mum, and a ration L/D of more than 8 where L represents an average length of the short fibers while D represents their average diameter.
    • 目的:为了防止由于皮带层之间的剥离而导致的可能的损坏,通过将由具有所述尺寸的短纤维的橡胶组合物与所述比例混合的橡胶隔离件布置在嵌入在相邻层之间的相邻层带之间 胴体层和一个对待,在他们的两边。 构成:充气轮胎1包括胎体帘布层5,胎体帘布层5由数量多个帘线平行布置的橡胶涂层组成,皮带6位于胎体帘布层的外圆周上并由钢帘线构成, 位于带的外周上的胎面7。 在这种情况下,构成带6的带束层中的带束层中的带束带与相邻带束层中的带束线以小于60度的角度相交。 穿过轮胎的赤道表面。 此外,具有近似三角形形状的横截面的橡胶隔离件8布置在其两侧的相邻的带状层之间。 该橡胶隔离物8由具有大于5pts.wt。的短纤维的橡胶组合物制成。 这里,短纤维的平均直径小于1μm,比L / D大于8,其中L表示短纤维的平均长度,而D表示其平均直径。