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    Heavy duty pneumatic radial tires
    2.
    发明授权
    Heavy duty pneumatic radial tires 失效
    重型气动子午线轮胎

    公开(公告)号：US4541467A

    公开(公告)日：1985-09-17

    申请号：US580271

    申请日：1984-02-16

    申请人： Masao Nakamura ,  Kenji Karato

    发明人： Masao Nakamura ,  Kenji Karato

    IPC分类号： B60C9/08 ,  B60C15/00 ,  B60C15/06

    CPC分类号： B60C15/06 ,  B60C15/0607 ,  Y10T152/10828 ,  Y10T152/10837 ,  Y10T152/10855

    摘要： A heavy duty pneumatic radial tire is disclosed, which comprises a tread portion, a pair of side portions, a pair of bead portions each reinforced with a bead ring, a radial carcass ply, a metal cord reinforcing layer and a composite rubber filler. In this tire, the carcass ply is a rubberized layer of aromatic polyamide fiber cords and a tip of its turnup portion terminates at a position lower than an upper end of a rim flange when the tire is mounted on a rim. In the metal cord reinforcing layer, one end facing the turnup portion terminates over the tip of the turnup portion and the other end facing the carcass ply extends toward the side portion over a position corresponding to the above-mentioned one end facing the turnup portion. The rubber filler consists of a hard rubber stock and a soft rubber stock, wherein the hard rubber stock extends above the bead ring along the carcass ply over a position corresponding to the end of the reinforcing layer facing the carcass ply, and the soft rubber stock extends toward the side portion over the hard rubber stock between the hard rubber stock and the reinforcing layer facing the turnup portion and the lower end thereof locates between the hard rubber stock and the turnup portion in a wedge shape.

    摘要翻译： 公开了一种重型充气子午线轮胎，其包括胎面部分，一对侧部，一对胎圈部分，每个胎圈部分用胎圈环加强，径向胎体帘布层，金属帘线增强层和复合橡胶填料。 在该轮胎中，胎体帘布层是芳香族聚酰胺纤维帘线的橡胶层，当轮胎安装在轮辋上时，其翻转部的末端终止于比轮辋凸缘的上端低的位置。 在金属帘线加强层中，面向上翻部分的一端终止于上翻部分的末端，面向胎体帘布层的另一端在对应于上述提升面的一端的位置上朝向侧部延伸。 橡胶填料由硬橡胶原料和软橡胶原料组成，其中硬橡胶原料沿着胎体帘布层在胎圈环的上方延伸超过对应于面向胎体帘布层的增强层的端部的位置，软橡胶原料 朝着硬橡胶原料与面向上燃部分的增强层之间的硬橡胶原料上的侧部延伸，并且其下端位于硬橡胶原料和翻转部分之间，呈楔形。