Patent ID: 9623710
Date: 2017-04-18
CPC Classifications: B60C

Claim:
1. A pneumatic tire comprising: a tread formed with a plurality of blocks partitioned by circumferential direction grooves and transverse grooves; at least one sipe formed in each of the blocks; a standing projection formed at the bottom of the at least one sipe in a bar shape extending radially outward in the tire radial direction, and a void being formed at both sides of the standing projection in the sipe length direction that extends from a lowermost portion of the sipe to an uppermost portion of the sipe; and a fine structure formed on at least one portion of the wall face of the sipe with a fundamental height in the range of from 1/50 of the sipe width to less than 1/10 of the sipe width, wherein the fine structure is formed with a fine projections network and a plurality of hollow portions disposed in a mesh shape defined by the fine projections network, and the fine projections network projects out from the wall face of the sipe so as to form a mound shape such that a width of each link configuring the fine projections network is narrower than a distance between adjacent links, wherein the standing projections are configured to prevent the fine structures on one wall face from contacting an adjacent wall face.