Patent ID: 6786261
Filing Date: 2004-09-07
Classification: B60C,Y10T

Abstract:
A pneumatic tire comprisinga carcass toroidally extending between a pair of bead portions, a belt arranged on an outside of the carcass in a radial direction and comprised of at least two belt layers containing many reinforcing cords inclined with respect to an equatorial plane of the tire, the cords of which layers being crossed with each other, a belt reinforcement arranged on an inside of the belt in the radial direction and comprised of at least one belt reinforcing layer embedded with reinforcing elements extending in a circumferential direction, and a tread rubber arranged on outsides of the belt and the belt reinforcement in the radial direction, in which a widthwise outer end of a widest-width belt reinforcing layer is arranged outward from a widthwise outer end of a widest-width belt layer among the belt layers, and a restraining rubber having a JIS hardness not less than a JIS hardness of a coating rubber for the widest-width belt reinforcing layer is arranged outward from the widthwise outer end of the widest-width belt reinforcing layer at least in a direction directly adjacent to the widthwise outer end of the widest-width belt reinforcing layer in an axial direction, wherein: the restraining rubber has a width of not less than 4 mm from the widthwise outer end of the widest-width belt reinforcing layer; and the restraining rubber is extended inward in the widthwise direction so as to envelop the widthwise outer end part of the belt reinforcement from its outside and inside in the radial direction.