CAR TIRE Russian patent published in 2021 - IPC B60C11/12 B60C11/11 

FIELD: off-road vehicles.

SUBSTANCE: invention relates to off-road vehicles. The tire (1) has a tread band (2) containing a central annular part (A1) located across the equatorial plane (X-X), and two shoulder annular parts (A2, A3), separated from the central annular part (A1) by two circumferential grooves (3, 4). The central annular part (A1) has at least one circumferential row (8) of central blocks containing multiple central blocks (20) and at least two rows (9, 10) of side blocks opposite to each other with respect to at least one circumferential a row (8) of central blocks and containing multiple side blocks (21). The central blocks (20) have the first and second parts (20a; 20b), located opposite each other relative to the equatorial plane (X-X). The central blocks (20) and side blocks (21) have a circumferential dimension exceeding 2% of the extent of the tire tread sweep; side blocks (21) have an elongated part (13) and a front part (14) located at the end of the elongated part (13), and the elongated part (13) has a dimension S1 in the axial direction and the front part (14) has a dimension S2 in the axial direction with S2>S1. The elongated part (13) extends in accordance with the direction of the extension, forming an angle relative to the equatorial plane, ranging between 0 and 30°. The elongated part (13) has an axially outer side wall (15) facing one of the circumferential grooves (3, 4), and an axially inner side wall (16) facing one of the first and second parts (20a, 20b) of the central blocks (20). The front part (14) has a first transverse wall (17) located so that it forms, together with the axially inner side wall (16), a concavity directed towards the equatorial plane (X-X) so that the first or second part (20a; 20b) of the central block (20), axially following it, faces the concavity and is at least partially surrounded by an axially inner side wall (16) and a first transverse wall (17).

EFFECT: improving tire performance.

22 cl, 1 tbl, 4 dwg