发明公开
EP2342091A1 TYRE HAVING A BELT PLY WITH CORDS DISPOSED ALONG THE CIRCUMFERENCE OF THE TIRE TO REDUCE THE TIRE NOISE 有权
用皮带LOCATION轮胎,其蔻IN TIRE SCOPE DIRECTION输给轮胎噪音TO REDUCE

TYRE HAVING A BELT PLY WITH CORDS DISPOSED ALONG THE CIRCUMFERENCE OF THE TIRE TO REDUCE THE TIRE NOISE
摘要:
Tyre comprising a hooping reinforcement (100), which reduces the tire noise emission, wherein the axial distance between neighbouring portions of the hooping reinforcement is greater than or equal to 0.7 mm and smaller than or equal to 2mm, with the exception of one first axial region Ll and two second axial regions L2. The axial distance of each of the axial ends of the first axial region Ll from the median plane is greater than or equal to 0.05-S and smaller than or equal to 0.15-S, S being the maximum axial width of the tyre. The two regions L2 are provided on both sides of the median plane, each second axial region being centred at an axial distance D2 from the median plane, D2 being greater than or equal to 0.25-S and smaller than or equal to 0.4-S. Each second axial region L2 has an axial width W2 that is greater than or equal to 0.1 -S. The sum of the axial widths of the first and second axial regions is smaller than or equal to 0.5-S. The difference between the average axial distance between neighbouring portions of the hooping reinforcement in the first and second axial regions Ll and L2, and the distance outside the first and second axial regions Ll and L2 is at least 0.2 mm. tyre having a belt ply with cords disposed along the circumference of the tire to reduce the tire noise
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