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发明公开
CN110612219A 具有优化的结构和胎面的轮胎 有权

具有优化的结构和胎面的轮胎
摘要：
本发明的目的是增加轮胎的耐久性，所述轮胎包括两个交叉的工作层(41、42)，所述工作层(41、42)包括由单根金属线或单丝组成的增强元件，所述单根金属线或单丝具有至少等于0.20mm且至多等于0.5mm的截面。胎面的两个轴向外部部分中的至少一个轴向外部部分包含橡胶材料M1，所述橡胶材料M1具有至少等于48且至多等于60的肖氏硬度以及在23℃下测得的至少等于0.12且至多等于0.30的动力学性能tan(d)max。包含橡胶材料M1的所述至少一个轴向外部部分(22、23)的轴向外部切口(24)具有至少等于5mm的深度D和至多等于2mm的宽度W。
摘要（英）：

The aim of the invention is to increase the endurance of tyres comprising 2 crossed working layers (41, 42), the working layers comprising strengthening elements consisting of single metal wires or monofilaments that have a section at least equal to 0.20 mm and at most equal to 0.5 mm. At least one of the two axially outer portions of the tread comprises a rubber material M1 having a shore hardness at least equal to 48 and at most equal to 60, and a dynamic property tan (d) max measured at 23 DEG C at least equal to 0.12 and at most equal to 0.30. The axially outer notches (24) of said at least one axially outer portion (22, 23) comprising the rubber material M1 having a depth D at least equal to 5 mm and a width W at most equal to 2 mm.

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