Patent ID: 9499013
Filing Date: 2016-11-22
CPC Classification: B60C,Y02T

Claim Text:
1. A pneumatic tire, comprising: at least one carcass ply constituted of rubber-coated ply cords and including a main body portion extending in a toroidal shape across respective bead cores embedded in a pair of bead portions and turn-up portions respectively turned up around the bead cores from the main body portion to extend on the outer side in the tire radial direction; a bead filler provided between the main body portion and each of the turned-up portions to extend from the corresponding bead core on the outer side in the tire radial direction; and a side rubber, wherein a tip portion extending on the outer side in the tire radial direction than the outer end in the tire radial direction of the bead filler, of each of the turned-up portions, extends to a position of at least 5 mm distance from the outer end in the tire radial direction of the bead filler with maintaining distance of 1 mm or less between the tip portion and the main body portion of the carcass ply, a turn-up end as the outer end in the tire radial direction of each turn-up portion of the carcass ply is disposed on the inner side in the tire widthwise direction than a neutral axis of bending of the bead portion and a corresponding sidewall portion and at 10%-40% height of a tire cross section measured from the innermost end in the radial direction of the tire, the side rubber, disposed on the outer side in the tire widthwise direction of the main body portion and each turn-up portion of the carcass ply, covers the turn-up end and constitutes a part of an outer surface of the tire, and provided that a tire cross sectional height (SH) is ½ of a dimensional difference between outer and inner diameters of a tire inflated at a predetermined internal pressure under no load applied thereon as prescribed by JATMA, the tire cross sectional height (SH) of a tire side portion on the vehicle outer side is smaller than the tire cross sectional height (SH) of a tire side portion on the vehicle inner side.