TREAD OF TIRE Russian patent published in 2006 - IPC B60C11/12 B60C11/04 B60C11/13 

FIELD: tire industry; heavy-weight truck tires.

SUBSTANCE: proposed tire tread with relief pattern is formed by two circumferential grooves. Said grooves are limited by two ribs of mean width containing great number of cuts whose contours on contact surface, when non-worn-out, are arranged between two points of intersection A and B, AB segment forming angle α not exceeding 40° in cross direction of tread. Each cut 7 of mean width E contains sequence of sections of cut. Some of said sections of cut over entire surface parallel to contact surface in non-worn-out state and enclosed between surface in non-worn-out state and 2/3 of maximum depth of cut have contours forming mean angle β not exceeding 15° in longitudinal direction of tread.

EFFECT: increased tire life.

8 cl, 7 dwg