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    Heavy load pneumatic radial tire
    4.
    发明授权
    Heavy load pneumatic radial tire 失效
    重载充气子午线轮胎

    公开(公告)号：US5307851A

    公开(公告)日：1994-05-03

    申请号：US838660

    申请日：1992-02-21

    申请人： Nobuhiro Yamashita

    发明人： Nobuhiro Yamashita

    IPC分类号： B60C11/00 ,  B60C11/01 ,  B60C11/04 ,  B60C11/12

    CPC分类号： B60C11/042 ,  B60C11/01 ,  B60C11/0309 ,  B60C11/12 ,  B60C2011/0388 ,  B60C2011/1254 ,  Y10S152/03

    摘要： A heavy load pneumatic radial tire which includes at least one carcass layer in a radial direction and a reinforcing belt comprising at least two layers of metal cords around the outer periphery of the carcass in a tread portion, and in which a plurality of ribs partitioned by a plurality of main grooves extending in a tire circumferential direction are formed in a main grounding region of the tread surface and a narrow groove having a groove width of 1.5 to 5 mm and a groove depth of 60 to 120% of the depth of the main groove are disposed in a shoulder end zone of the ribs positioned at the shoulder in the tire circumferential direction, characterized in that a large number of primary kerfs extending from the narrow groove towards the tread center are intermittently disposed in the tire circumferential direction, and a large number of secondary kerfs extending in the tire circumferential direction are intermittently disposed at the positions closer to the tread center than the primary kerfs in the tire circumferential direction.

    摘要翻译： 一种重负荷充气子午线轮胎，其包括沿径向的至少一个胎体层和加强带，所述加强带包括在胎面部分中围绕胎体外周的至少两层金属帘线，并且其中多个肋由 在胎面表面的主接地区域形成有沿轮胎周向延伸的多个主槽，槽宽为1.5〜5mm，槽深为主体深度的60〜120％的窄槽 凹槽设置在位于轮胎周向上的肩部的肋的肩端部区域中，其特征在于，从轮胎周向方向间歇地设置有从窄槽向胎面中心延伸的大量主切口， 在轮胎周向上延伸的大量二次切口间歇地设置在比主要部分更靠近胎面中心的位置处 轮胎周向的轮廓。