| 摘要 |
A tread for motor-vehicle tyres has a raised pattern formed of a plurality of shaped blocks (7) distributed according to circumferential rows (3, 4, 5, 6) disposed parallelly in side by side relation. The number of the shaped blocks (7) arranged in each row gradually increases on passing from the equatorial plane (X-X) to the side edges (1a) of the tread (1). Thus a gradual increase in the longitudinal stiffness of the shaped blocks (7) is achieved on passing from the side edges (1a) of the tread (1) to the equatorial plane (X-X), which brings about a reduction in the mobility of said blocks on the imprinting area and a greater quietness of the tyre in use. <IMAGE> |
