Patent ID: 9346324
Filing Date: 2016-05-24
CPC Classification: B60C

Claim Text:
1. A pneumatic tire where a mounting direction of the tire inside and outside is designated when the tire is mounted on a vehicle, comprising a tread portion forming an annular shape extending in a tire circumferential direction, a pair of side wall portions disposed on both sides of the tread portion, and a pair of bead portions disposed on an inner side in the tire radial direction of the side wall portions; wherein: at least one row of blocks constituted by a plurality of blocks aligned in the tire circumferential direction respectively in a vehicle inner side region and a vehicle outer side region of the tread portion is formed; a plurality of sipes extending in a tire width direction is formed in each of the blocks; a pitch count of the blocks constituting the row of blocks in the vehicle inner side region is greater than a pitch count of the blocks constituting the row of blocks in the vehicle outer side region; the sipes formed in the blocks in the vehicle outer side region are provided with a structure extending in a linear manner along a depth direction thereof; the sipes formed in the blocks in the vehicle inner side region are provided with a structure extending while curving along the depth direction thereof, and a sipe density of the blocks in the vehicle inner side region is from 1.2 to 2.0 times the sipe density of the blocks in the vehicle outer side region.