PNEUMATIC TIRE Russian patent published in 2016 - IPC B60C11/01 B60C13/02 

FIELD: motor car construction.

SUBSTANCE: claimed tire comprises the tread crown and rolling surface with crosswise grooves made therein. Tread side strip extends from the tread edge radially inside the tire and has the surface with ledge located on one side in the tire circumference direction and the holes for crosswise grove opening to the tread side strip. Said ledge has radially outer end face spaced from the tire centre in radial direction more than radially inner end face of crosswise groove opening to the tread side strip. Note here that the outer outline of said ledge in cutaway view in the direction over the tire width extends radially inward and has the flexure points.

EFFECT: heat dissipation in the area of crosswise groove, reduced temperature on the crown area at loaded tire rolling.

13 cl, 10 dwg, 1 tbl