Patent ID: 7270163

Claim:
A tyre for a vehicle wheel, the tyre being configured to be provided on a contact surface, the tyre comprising: a carcass structure; a belt structure associated coaxially with the carcass structure; and a tread band extending coaxially around the belt structure; wherein the carcass structure comprises a central crown portion and two axially-opposed sidewalls, wherein the tread band comprises a relief pattern comprising at least one row of blocks separated by transverse grooves intersecting two circumferential grooves, wherein each block of the at least one row is essentially delimited by two longitudinal sides in a circumferential direction of the tyre, wherein each block of the at least one row is essentially delimited by two transverse sides, a front side and a rear side with respect to a predetermined rolling direction of the tyre, wherein each block of the at least one row is formed by two block portions, wherein the two block portions of each block are mirror images of each other, wherein the two block portions are axially adjacent to each other, wherein each of the transverse sides of each block portion comprise at least two successive curvilinear portions shaped differently from each other, wherein the transverse grooves comprise two branches, wherein each branch comprises a widened branch cross-section of substantially-curvilinear shape wherein a junction of the two branches defines a widened junction cross-section, and wherein each widened branch cross-section is disposed in an area substantially equidistant from ends of a respective branch, the widened junction cross-section being wider than the widened branch cross-section.