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    Convertible tread for a radial truck or trailer tire
    6.
    发明授权
    Convertible tread for a radial truck or trailer tire 失效
    用于径向卡车或拖车轮胎的敞篷车胎面

    公开(公告)号：US06481480B1

    公开(公告)日：2002-11-19

    申请号：US09180738

    申请日：1998-11-12

    申请人： Daniel Edward Schuster ,  John James Serich

    发明人： Daniel Edward Schuster ,  John James Serich

    IPC分类号： B60C1111

    CPC分类号： B60C11/13 ,  B60C11/033 ,  B60C11/11 ,  B60C11/12 ,  B60C11/125 ,  B60C2011/1213 ,  B60C2011/1254 ,  Y10S152/03 ,  Y10S152/902

    摘要： A radial ply pneumatic tire 10 for trucks or trailers has a tread 12 with at least three circumferential grooves 20,22 extending circumferentially to divide the tread 12 into at least four parts and lateral grooves 30,31,32,33,34 extending across the at least four parts of the tread to form at least four rows 1,2,3,4 and 5 of circumferentially separated blocks 40. The circumferential grooves 20,22 have average groove widths of W1 for a depth between the radially outer surface of the adjacent blocks and a groove depth that is less than 60% of the non-skid depth D, the circumferential grooves having a second average groove width W2 at the groove depth less than 60% of the non-skid depth D, the second average groove width W2 being less than 50% of W1. The lateral grooves 30,34 in each shoulder row 15 have a first average groove width W3 and a groove depth that is less than 60% of the non-skid depth D. The lateral grooves 31,32,33 in the central rows 2,3 and 4 have a first average length L1 for a depth between a radially outer surface of the adjacent blocks and a groove depth that is less than 60% of the non-skid depth D, the lateral grooves in the central rows having a second average length L2 at the groove depth that is less than 60% of the non-skid depth D, the second average length L2 being greater than the first average length L1. The tie 10 when new, provides a tread 12 for the drive axle position and when less than 60% worn, the tread pattern changes to one ideally suited for the trailer wheel position.

    摘要翻译： 用于卡车或拖车的径向帘布层充气轮胎10具有胎面12，胎面12具有周向延伸的至少三个周向槽20,22，以将胎面12分成至少四个部分，并且横向槽30,31,32,33,34延伸穿过 胎面的至少四个部分形成周向分隔的块40的至少四排的1,2,3,4和5.圆周槽20,22具有W1的平均槽宽度，用于在 相邻的块和槽深度小于非滑动深度D的60％，所述周向槽具有凹槽深度小于非滑动深度D的60％的第二平均槽宽度W2，第二平均槽 宽度W2小于W1的50％。 每个肩部行15中的横向槽30,34具有第一平均槽宽度W3和小于非滑动深度D的60％的槽深度。中心行2中的横向槽31,32,33， 3和4具有相邻块的径向外表面之间的深度和小于非滑动深度D的60％的槽深度的第一平均长度L1，中心行中的横向凹槽具有第二平均 在凹槽深度处的长度L2小于非滑动深度D的60％，第二平均长度L2大于第一平均长度L1。 领带10在新的时候，提供用于驱动轴位置的胎面12，并且当小于60％的磨损时，胎面花纹变成理想地适合于拖车轮位置的胎面花纹。