| 摘要 |
<p>Tread for passenger car tyre having, radially on the outside, a tread surface (10) and comprising a plurality of elements (2), at least some of these elements being provided with at least one incision (5) delimited by two opposing faces, this incision being made up of a succession of thin sections (51) and of thick sections (52) which alternate with one another, the thin sections (51) being inclined by an angle A of at most 40 degrees, this angle being measured in relation to a direction perpendicular to the tread surface and passing through the points of the incision on the tread surface, the thick sections (52) making an angle B of between 60 degrees and 120 degrees with a direction perpendicular to the tread surface, and the thin section (51) having a width e less than the width E of the thick sections (52), the width of the thin sections being such that as they go through the contact patch, the walls delimiting said thin sections are in contact and the width of the thick sections being such that on passing through the contact patch the walls delimiting the thick sections are not in contact.</p> |
