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公开(公告)号：EP0913274A4
公开(公告)日：2002-01-02
申请号：EP97947869
申请日：1997-12-10
IPC分类号： B60C11/00 , B60C11/03 , B60C11/04 , B60C11/11 , B60C19/00 , B60C11/113 , B60C11/117
CPC分类号： B60C11/0306 , B60C11/0302 , B60C11/0304 , B60C11/0318 , B60C11/033 , B60C19/001 , B60C2011/0374 , Y10S152/904
摘要： A pneumatic tire, for which noises of passage are decreased while draining performance being maintained on a directional tread pattern, and a pneumatic tire set. Arranged on a tread surface, for which a direction of tire revolution is indicated, alternately in a circumferential direction of a tire are groups of rightwardly inclined grooves, each group composed of a unit of grooves starting at a tread center portion and inclining in a direction opposite to the direction of tire revolution to pass through a rightward shoulder edge, and groups of leftwardly inclined grooves, each group composed of a unit of grooves starting at the tread center portion and inclining in the direction opposite to the direction of tire revolution to pass through a leftward shoulder edge. Formed on the tread center portion are a single, main rib, which is defined zigzaggedly in a circumferential direction of the tire by starting ends of the groups of rightwardly inclined grooves and the groups of leftwardly inclined grooves, and sub-ribs branching off the main rib along the groups of rightwardly inclined grooves and the groups of leftwardly inclined grooves. Further, noises are decreased by lessening a groove area ratio for a tire for rear wheels, and providing small grooves at variable pitches on the sub-ribs of a tire for idler wheels.
摘要翻译： 本发明提供一种充气轮胎和充气轮胎组件，其充气轮胎在通
过方向胎面花纹上保持排水性能的同时降低了通道噪音。 在轮胎周向方向上轮胎的旋转方向交替地设置在胎面上的是右侧倾斜槽组，每个组由从胎面中央部开始并在方向上倾斜的槽单元组成 与通过右侧肩部边缘的轮胎旋转方向相反的左侧倾斜槽以及从胎面中央部开始并沿与轮胎转动方向相反的方向倾斜的槽单位组成的各组左倾斜槽 通过左肩边缘。 在胎面中央部分形成有单一的主肋，该主肋通过右侧倾斜槽组和左侧倾斜槽组的开始端在轮胎的圆周方向上锯齿状地限定，并且分支出主体 沿着右侧倾斜槽组和左侧倾斜槽组。 此外，通过减小用于后轮的轮胎的槽面积比并且在用于惰轮的轮胎的子肋上以可变间距设置小槽，降低了噪声。
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