Patent ID: 9150058
Filing Date: 2015-10-06
Classification: B60C

Abstract:
1. A pneumatic tire comprising: in a tread portion, at least one block group, the block group comprising a plurality of independent blocks defined by grooves; and in the tread portion, at least one circumferential main groove comprising a see-through groove portion, the see-through groove portion linearly extending in the tire circumferential direction, wherein block number density D (pieces/mm wherein PL (mm) represents a reference pitch length of the block in the block group, W (mm) represents a width of the block group, a (pieces) represents the number of the blocks existing in a reference zone of the block group, the reference zone being demarcated by the reference pitch length PL and the width W, and N (%) represents a negative ratio in the reference zone, wherein the at least one block group includes a block having a lateral length being larger than a longitudinal length thereof, wherein in the block group, a distance BGL between blocks adjacent to each other in the tire circumferential direction is larger than a distance BGO between blocks adjacent to each other in an oblique direction with respect to the tire circumferential direction, and wherein in the block group, a distance BGW between blocks adjacent to each other in the tire width direction is smaller than a length BW of the blocks in the tire width direction.