Patent ID: 8408261
Filing Date: 2013-04-02
Classification: B60C,Y10T

Abstract:
1. A pneumatic tire comprising: a pair of bead portions having bead cores embedded therein, each bead core being constituted of annular bead wires juxtaposed in the tire widthwise direction; a pair of side wall portions extending from the bead portions on the outer side in the tire radial direction; a tread portion extending over the respective sidewall portions; and a carcass extending in a toroidal shape across the aforementioned portions and having respective end portions being turned up around the bead cores, wherein the bead wire has, in a section in the tire widthwise direction, a parallelogram section having a pair of acute corner portions including a first acute corner portion and a second acute corner portion and a pair of obtuse corner portions including a first obtuse corner portion and a second obtuse corner portion, the first acute corner portion is positioned on the outer side in the tire widthwise direction and on the inner side in the tire radial direction of the second acute corner portion, the first obtuse corner portion is positioned on the inner side in the tire widthwise direction and on the outer side in the tire radial direction of the first acute corner portion, and the second obtuse corner portion is positioned on the inner side in the tire widthwise direction of the first acute corner portion and on the inner side or aligned, in the tire radial direction, of/with the first acute corner portion.