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    Highly durable tread pattern of a rib type pneumatic tire
    90.
    发明授权
    Highly durable tread pattern of a rib type pneumatic tire 失效
    肋型充气轮胎的高耐用胎面花纹

    公开(公告)号：US4078596A

    公开(公告)日：1978-03-14

    申请号：US729458

    申请日：1976-10-04

    申请人： Osamu Nakayama ,  Hiroshi Kojima

    发明人： Osamu Nakayama ,  Hiroshi Kojima

    IPC分类号： B60C11/04 ,  B60C11/01 ,  B60C11/03 ,  B60C11/12 ,  B60C11/06

    CPC分类号： B60C11/1369 ,  B60C11/0306 ,  B60C11/04 ,  B60C11/12 ,  B60C11/1263 ,  B60C2011/0383 ,  B60C2011/0388 ,  B60C2011/1213 ,  B60C2011/1254 ,  Y10S152/03 ,  Y10S152/90

    摘要： A highly durable tread pattern of a rib type pneumatic tire using two grooves for heavy vehicles is disclosed. The tread is provided with a pair of zigzag grooves extending circumferentially of the tread and dividing the tread into a center rib and a pair of side ribs. The center rib is provided with a plurality of sipe grooves arranged in a row and substantially equally spaced on the circumference of the tread by a pitch corresponding to a pitch between the zigzag tread grooves. The center rib and the pair of side ribs do not interrupt their circumferential continuity. Each of the sipe grooves is composed of a circumferentially extending section inclined at an acute angle of smaller than 45.degree. with respect to the circumferential direction and a widthwisely extending section inclined at an angle of at least 45.degree. with respect to the circumferential direction. These sections are formed into hook-shaped, bracket-shaped or curve-shaped formation or a combination of these formations.

    摘要翻译： 公开了一种使用重型车辆的两个槽的肋式充气轮胎的高度耐用的胎面花纹。 胎面设置有一对在胎面周向延伸的锯齿形槽，并将胎面分成中心肋和一对侧肋。 中心肋设置有多个排列成行的刀槽花纹槽，并且在胎面的圆周上基本上等间隔地具有相当于之字形胎面花纹沟之间间距的节距。 中心肋和一对侧肋不会中断其圆周连续性。 每个刀槽花纹槽由相对于圆周方向以小于45°的锐角倾斜的周向延伸部分和相对于圆周方向以至少45°的角度倾斜的宽度方向延伸部分构成。 这些部分形成为钩形，托架形或曲线形状或这些结构的组合。