| 摘要 |
<p>The invention relates to a tread (1) for a tyre having a wheel tread (10), at least two wearing courses (C1, C2, C3) overlapping in the body of the tread, a first wearing course (C1) made up of a plurality of raised elements (21, 22) each including a contact area, including at least circumferential grooves (20, 20'), and contacting the road when the tread is new, and at least one other wearing course (C2, C3) contacting the road once the first course (C1) is completely worn out, said courses comprising at least one channel (30) extending in the circumferential direction, and leading into the wheel tread whenever said wearing course is reached, each of the other wearing courses (C2, C3) comprising a plurality of transverse cuts (31) distributed in the circumferential direction and extending from a channel (30) of the course in question in a direction other than the circumferential direction to completely or partially lead into at least one other circumferential groove (20, 20'), regardless of the wear of said other wearing course.</p> |
