Patent ID: 6957676

Claim:
A tyre for a vehicle wheel, comprising: a carcass structure; a belt structure coaxially associated with the carcass structure; and a tread coaxially extending around the belt structure; wherein the carcass structure comprises a central crown portion and two axially opposed sidewalls, wherein the tread is moulded with a relief design comprising a plurality of transverse grooves and at least two circumferential series of incisions, wherein the transverse grooves delimit a corresponding plurality of transverse ribs, wherein the at least two circumferential series of incisions are inclined with respect to a circumferential direction of the tyre, wherein the at least two circumferential series of incisions delimit at least three rows of blocks, wherein the at least three rows of blocks comprise a central row and two axially outer rows, wherein the blocks of the central row essentially lie across an equatorial plane of the tyre, wherein each block comprises an essentially polygonal shape, wherein the essentially polygonal shape is delimited by two longitudinal sides, a front transverse edge, and a rear transverse edge, wherein the two longitudinal sides extend in an essentially circumferential direction, wherein, for the blocks of the central row, axially outer ends of the two longitudinal sides lie on two first planes parallel to each other, wherein the two first planes are a first distance from each other, wherein the two first planes are parallel to the equatorial plane of the tyre, wherein each transverse groove extends over an entire width of the tread, wherein each transverse groove comprises a central portion and two lateral portions, wherein the central portion is located between a pair of consecutive blocks of the central row, wherein at least part of the lateral portions are located between respective pairs of consecutive blocks of the two axially outer rows, wherein each lateral portion comprises, along a respective mid-line axis, a first depth that is greater than a second depth of a respective central portion, wherein each lateral portion comprises, along the respective mid-line axis, a first width that is greater than a second width of the respective central portion, wherein the first depth is also greater than a third depth of the at least two circumferential series of incisions, wherein the first width is also greater than a third width of the at least two circumferential series of incisions, wherein the mid-line axis of each lateral portion comprises a zigzag configuration, wherein the lateral portions of each transverse groove are staggered with respect to each other in the circumferential direction, and wherein axial inner ends of the lateral portions of each transverse groove are staggered with respect to each other in the circumferential direction by a third distance in a range from 60% to 70% of a pitch of the tread.