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    PNEUMATIC TIRE
    1.
    发明公开
    PNEUMATIC TIRE 有权
    LUFTREIFEN

    公开(公告)号：EP1892126A4

    公开(公告)日：2008-11-19

    申请号：EP06756838

    申请日：2006-05-31

    申请人： YOKOHAMA RUBBER CO LTD

    发明人： MATSUNAGA FUTOSHI ,  MORITA KENICHI

    IPC分类号： B60C11/00 ,  B60C3/06 ,  B60C5/00 ,  B60C9/22 ,  B60C11/01 ,  B60C11/04 ,  B60C11/13 ,  B60C15/06

    CPC分类号： B60C11/00 ,  B60C3/04 ,  B60C11/005 ,  B60C11/0083 ,  B60C11/01 ,  B60C11/0306 ,  B60C11/0332 ,  B60C11/13 ,  B60C2011/013 ,  Y02T10/862

    摘要： A pneumatic tire capable of improving overturning characteristics while maintaining steering stability, wherein a tread face (11) is formed of a center circular arc part (31) and shoulder side circular arc parts (32) and (33). A value obtained by using a relational expression K1 = L1/(TDW x 0.5) where a contour area which is a width between the equatorial plane (5) and the end part of the center circular arc part (31) of the tire is L1 and an extended tread width is TDW is set within the range of 0.6 = K1 = 0.8, and the ratio K2 of the radius of curvature TR1 of the center circular arc part (31) to the outer diameter OD of the tire K2 = TR1/OD is set to within the range of 0.9 = K2 = 2.0. Also, a value obtained by using a relational expression K3 = (ß x TDW)/(100 x SW) where a flatness is ß, the extended tread width is TDW, and the overall width is SW is set within the range of 0.40 = K3 = 0.48. As a result, the overturning characteristics can be improved while maintaining the steering stability.

    摘要翻译： 本发明提供一种能够在维持操纵稳定性的同时改善翻倒特性的充气轮胎，其中胎面（11）由中心圆弧部分（31）和肩部侧圆弧部分（32）和（33）形成。 将赤道面（5）与轮胎的中央圆弧部（31）的端部之间的轮廓面积即轮胎面积为L1时的关系式K1 = L1 /（TDW×0.5） 并且扩展胎面宽度TDW设定在0.6 = K1 = 0.8的范围内，并且中心圆弧部分（31）的曲率半径TR1与轮胎K2的外径OD的比值K2 = TR1 / OD设置在0.9 = K2 = 2.0的范围内。 另外，使用平坦度为β，扩展胎面宽度为TDW，整体宽度为SW的关系式K3 =（ß×TDW）/（100×SW）而得到的值为0.40 = K3 = 0.48。 结果，可以在保持操纵稳定性的同时改善倾覆特性。