Pneumatic tire

摘要

A pneumatic tire having a tread portion, side wall portions, and bead portions includes at least one row of blocks constituted by a plurality of blocks aligned in a tire circumferential direction formed in a vehicle inner side region and a vehicle outer side region of the tread portion. Sipes extend in a tire width direction 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 the pitch count of the blocks constituting the row of blocks in the vehicle outer side region. Sipes formed in the blocks in the vehicle outer side region are provided with a structure extending in a linear manner along the depth direction thereof and sipes formed in the blocks in the vehicle inner side region are provided with a structure extending while curving along the depth direction thereof.

主权项

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.