Tire for a vehicle wheel including at least two circumferential series of inclined incisions delimiting at least three rows of blocks

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 four circumferential series of incisions,
• wherein the transverse grooves delimit a corresponding plurality of transverse ribs,
• wherein the at least four circumferential series of incisions are inclined with respect to a circumferential direction of the tyre,
• wherein the at least four circumferential series of incisions delimit at least five rows of blocks,
• wherein the at least five rows of blocks comprise a central row, two axially inner rows, 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 four circumferential series of incisions,
• wherein the first width is also greater than a third width of the at least four circumferential series of incisions,
• wherein the at least four circumferential series of incisions comprise at least two axially inner circumferential series and at least two axially outer circumferential series, and
• wherein mid-line axes of the at least two axially inner circumferential series of incisions are inclined, with respect to the circumferential direction of the tyre, in a direction opposite to mid-line axes of the at least two axially outer circumferential series of incisions.