| 摘要 |
<p>A tread for a tire with raised elements delimited by cuts, at least one of these raised elements having a sipe of a maximum depth at most equal to the thickness of the tread, and running in a main direction determined by the ends of the sipe on the tread surface in the as-new condition and a secondary direction running into the thickness of the tread, having a first part, running in the secondary direction between the contact face in the as-new condition and a depth at least equal to 40% of the maximum depth and a second part extending the first part into the thickness of the tread, and extending over a depth. The second part has, in the main direction of the sipe, at least one first portion and at least one second portion, each having a length less than the length (L).</p> |
