| 摘要 |
<p>Method for modifying the coefficient of adhesion of tyres, new or old, which consists in temporarily forcing into the tread (2), substantially in a radial direction, elements (3) in order to produce holes, the opening of which has a section such that it is opened up in the stressed zones of the tyre and is closed up in the non-stressed zones, device suitable for such a method and tyre thus obtained. <IMAGE></p> |
