Pneumatic radial tire for heavy-duty vehicles
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsKazuyuki Kabe, Nobuhiro Yamashita, Izumi Kuramochi, Kohtaroh Iwabuchi
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Abstract
A pneumatic radial tire for heavy-duty vehicles in which reinforcement belts comprising metal cords are disposed in the tread portion, and a plurality of main grooves extending in the circumferential direction of the tire are provided in the tread surface. In addition, recessed and projecting portions are provided on the edges of the tread surface in a zig-zag fashion along the circumferential direction of the tire.
Claims4
A pneumatic radial tire for heavy-duty vehicles having reinforcement belts consisting of metal cords disposed in a tread portion, and a plurality of main grooves extending in the circumferential direction of the tire and formed in a tread surface, wherein recessed projecting portions are provided in the edges of said tread surface in a zig-zag fashion along the circumferential direction of said tire, said recessed and projecting portions comprising V-shaped recessed portions continuously arranged on the edge portions of said tread surface around the entire circumferential direction of said tire, and a bottom portion of each of said recessed portions gradually increases in depth to an end portion and said bottom portion at the outer surface of the shoulder portion is a round curved surface.
Dependencies are inferred from the claim text.