Patent ID: 8439094

Claim:
A pneumatic tire comprising: a plurality of land portions partitioned by grooves and formed in a tread surface; and a plurality of sipes formed in each of the land portions, wherein a plurality of first protrusions are formed on only one of sipe inner wall surfaces opposed to each other in all the sipes, each of the first protrusions continuing in a tire depth direction from the tread surface to a sipe bottom and protruding toward an opposite sipe inner wall surface, the first protrusions are tapered toward the opposite sipe inner wall surface and are provided with a narrow portion so that a protrusion width of the first protrusions is formed to be narrow, the narrow portion is provided between the tread surface and the sipe bottom, and second protrusions protruding toward the opposite sipe inner wall surface are formed between narrow portions of adjacent first protrusions, and wherein the sipe inner wall surface on which the first protrusions and the second protrusions are formed in the sipe is a surface closer to the center of the land portion in a tire circumferential direction among the sipe inner wall surfaces opposed to each other.