| 摘要 |
Tire tread (10) having at least two wearing layers, provided with at least one continuous groove (2) including a plurality of outer cavities (21) opening onto the tread surface in the new condition and a plurality of inner cavities (22) placed radially and completely inside the tread surface in its new condition, each outer cavity (21) of the continuous groove (2) being connected to at least two inner cavities (22) of the same groove by connecting channels (23) ensuring the continuity between said inner and outer cavities, and said tread further includes a plurality of scorings (30) opening out onto the rolling surface of the tread in the new condition, each of said scorings connecting two consecutive outer cavities of the same groove and at least two connecting channels and at least one inner cavity. |
