PNEUMATIC TIRE Russian patent published in 2012 - IPC B60C11/04 B60C11/11 B60C11/13 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Tread surface 2 has outer zone 2o directed the vehicle outward and including one main lengthwise groove 3 arranged there inside. Internal zone 2i directed the vehicle inward comprises first and second lengthwise grooves 4, 5 arranged there inside. Central area Rc between main lengthwise grooves 3 and 4 are made up of rib 10 extending in lengthwise direction. Outer shoulder zone Ro between main lengthwise groove 3 and edge TEo of contact with soil is made up of set of external blocks 12 separated by main inclined grooves 6. External blocks 12 comprises additional inclined grooves with inclination other than that of inclined grooves 6 to make external blocks 12 divided into first part on tire equator side and second part on the side of contact with soil.

EFFECT: higher wear resistance and better road holding, higher performances on wet road surface.

7 cl, 13 dwg