Patent ID: 8794279
Filing Date: 2014-08-05
Classification: B60C

Abstract:
1. A pneumatic tire comprising a thin groove that continuously extends in the tread circumferential direction in a shoulder rib that is demarcated to the tread edge side portion by a circumferential direction main groove that is continuous in the tread circumferential direction, the pneumatic tire comprises: an annular groove provided continuously in the circumferential direction in a groove wall on the tread equatorial surface side of the thin groove, which, is formed facing the normal direction of the tread surface, to be contiguous to the groove bottom, in a cross section taken in the width direction of the tread; wherein the shape of the annular groove in a cross section taken in the width direction of the tread is formed such that a corner portion contiguous to the groove wall on the tread equatorial surface side is rounded to a curvature radius R the depth of the thin groove is greater than 1.0 and less than or equal to 1.5 times the depth of the circumferential direction main groove, and the curvature radius R