发明名称 |
Tire for motor vehicle wheels having a tread producing a low rolling noise |
摘要 |
A tread for motor-vehicle tires has a raised pattern formed of a plurality of shaped blocks 7 distributed in circumferential rows 3, 4, 5, 6 disposed in parallel and in side by side relation. The number of the shaped blocks 7 arranged in each row gradually increases while moving from the equatorial plane X-X to the axial outer side edges 1a of the tread 1. Thus a gradual increase in the longitudinal stiffness of the shaped blocks 7 is achieved on passing from the side edges 1a of the tread 1 to the equatorial plane X-X, which brings about a reduction in the mobility of said blocks on the road contact patch and lower rolling noise.
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申请公布号 |
US6311748(B1) |
申请公布日期 |
2001.11.06 |
申请号 |
US19990233182 |
申请日期 |
1999.01.20 |
申请人 |
PIRELLI COORDINAMENTO PNEUMATICI SPA |
发明人 |
BOIOCCHI MAURIZIO;COLOMBO GIANFRANCO |
分类号 |
B60C11/03;B60C11/00;B60C11/04;B60C11/11;G10K11/16;(IPC1-7):B60C11/03;B60C11/12;B60C113/00 |
主分类号 |
B60C11/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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