| 摘要 |
<p>A tire tread intended to be fitted on heavy vehicles, comprising a plurality of elements in relief (30), this tread being divided in the axial direction into three parts, a central part (33) and axially on either side a first edge (31) and a second edge (32), the first and the second edge parts comprising elements in relief (30) arranged at a pitch Pe corresponding to the average circumference of the edge in question divided by the number of elements in relief on the edge in question, the elements in relief of each edge part having a line of leading ridges and a line of trailing ridges. The lines of ridges (312, 322) of the elements in relief of the first edge part (31) have profiles which cannot be superposed on the profiles of the lines of ridges (321, 322) of the elements in relief of the second edge part (32), and the difference between the absolute value of the angle of the average direction of each line of ridges (311, 312) of an element in relief of the first edge part and each of the absolute values of the angles of the average directions of the lines of ridges (321, 322) of each element in relief of the second edge part is at least equal to 10 degrees and at most equal to 20 degrees.</p> |
