TIRE

摘要

An object of the present invention is to provide a tire exhibiting improved braking and driving performances on each of an icy/snowy road surface and a dry road surface. Specifically, the present invention provides a tire, comprising: a tread having at least two circumferential grooves formed therein; at least three rows of land portions demarcated in the ground contract surface by the at least two circumferential grooves, including a pair of outer side land portions and a central land portion other than the outer side land portions; a shoulder sipe formed in each outer side land portion such that respective ends of the sipe in the longitudinal direction thereof terminate in the outer side land portion, the shoulder sipe having in at least a portion in the depth direction thereof a bent section alternately bent on one side and the other side in the sipe width direction and continuously extending along the entire length in the sipe longitudinal direction to form a bent region; a center sipe formed in the central land portion such that each end of the sipe in the longitudinal direction thereof opens to either the circumferential groove or a lug groove, the center sipe having in at least a portion in the depth direction thereof: a bent section similar to the bent section of the shoulder sipe; and a flat section extending orthogonal to the ground contact surface of the tread, the flat section being continuous in the sipe longitudinal direction with at least one side of the bent region and extending in the sipe longitudinal direction to form a flat region.

主权项

1. A tire, comprising:
a tread having at least two circumferential grooves formed in a ground contact surface thereof; at least three rows of land portions demarcated in the ground contract surface by the at least two circumferential grooves, including a pair of outer side land portions located on the outermost side in the tread width direction and a central land portion constituted of the land portion(s) other than the outer side land portions; a shoulder sipe formed in each outer side land portion such that respective ends of the sipe in the longitudinal direction thereof terminate in the outer side land portion, the shoulder sipe having in at least a portion in the depth direction thereof a bent section alternately bent on one side and the other side in the sipe width direction and continuously extending along the entire length in the sipe longitudinal direction to form a bent region; a center sipe formed in the central land portion such that each end of the sipe in the longitudinal direction thereof opens to either the circumferential groove or a lug groove, the center sipe having in at least a portion in the depth direction thereof: a bent section alternately bent on one side and the other side in the sipe width direction and continuously extending in the sipe longitudinal direction to form a bent region; and a flat section extending orthogonal to the ground contact surface of the tread, the flat section being continuous in the sipe longitudinal direction with at least one side of the bent region and extending in the sipe longitudinal direction to form a flat region.