PNEUMATIC TIRE Russian patent published in 2014 - IPC B60C19/08 B60C11/00 B29D30/60 

FIELD: transport.

SUBSTANCE: tread rubber 2G comprises: subtread ply 9 consisting of non-electro conducting rubber including silicon dioxide in width equal, in fact, to that of cords ply 7 reinforcing the tread. It includes conducting area 11 consisting of conducting rubber extending axial to cover subtread ply outer surface and including opposite ends 11a, 11b extending outward from subtread ply 9 and connected with tire elements Ty electrically connected with rim J with tire fitted thereon. Tire tread 10 consists of non-electro conducting rubber including silicon dioxide and arranged outside said conducting area 10 to make the major contact surface area 2a. Conducting area 10 is bent to extend outward in tire radial direction. Conducting area outer surface 11A extends to contact surface 2a. Tire tread 10 includes first part 10A arranged at one side of conducting area outer surface 11A in tire axial direction and second part 10B located at opposite side of outer surface 11A.

EFFECT: lower rolling resistance, better homogeneity and conductance.

11 cl, 16 dwg, 1 tbl