| 摘要 |
The invention concerns a tyre tread comprising, over at least a lateral part and radially inside said tread running surface (38) a plurality of cavities (36, 39) oriented almost transversely and emerging on at least one of the tread edges, said cavities being designed to form notches and indentations emerging radially towards the running tread outer part after wear ranging between 15 % and 45 % of the thickness E of said tread as manufactured The invention also concerns a mould (200) adapted to mould such a pattern and comprising, over at least a part moulding one of the sidewalls, embossed elements for moulding cavities radially beneath a tyre tread running surface in new condition. |
