PNEUMATIC TIRE Russian patent published in 2011 - IPC B60C11/04 B60C11/11 B60C11/12 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed pneumatic tire comprises multiple angular grooves 3 on tread 1 on both sides of equator E to run at angle on to outer surface along tire width in direction opposite the tire rotational direction R, and multiple crosswise grooves 4 on treat on both sides of equator E running at angle on to outer side of tire in direction opposite said rotational direction R. Contact central surface 10 running continuously along tire circumference is formed by angular grooves 3 and crosswise grooves 4 at tread center relative to tire equator E. Outer sections of contact surface 20 formed by multiple blocks 21 are arranged on outer sections over tire width in direction of angular grooves 3. Multiple slot-like drain grooves 11, 21 ruing along tire width are located at the center of contact surface 10 and on every outer section of contact surface 20. Angular grooves 3 are arranged to intersect at least two crosswise grooves 4.

EFFECT: improved operating performances on ice, snow and wet road coat.

7 cl, 6 dwg, 1 tbl