| 摘要 |
Provided is a pneumatic tire that has a directional tread pattern and includes: a rib-shaped first land area extending in the tire-circumferential direction in a center section of a tread portion; paired first main grooves being adjacent respectively to the two sides of the first land area; paired second land areas being adjacent respectively to the outer sides of the first main grooves; paired second main grooves being adjacent respectively to the outer sides of the second land areas; paired third land areas being adjacent respectively to the outer sides of the second main grooves; a fine groove extending at the center of the first land area; plural lug grooves formed in the first land area; and plural sipes formed in the first land area. The lug grooves alternate with the sipes along the tire-circumferential direction. Each lug groove intersects with a corresponding sipe. An end of the lug groove formed in the first land area is formed as a dead end between the fine groove and a corresponding first main groove. The width and depth of each lug groove formed in the first land area are gradually reduced from its open-end side to its closed-end side. Each sipe formed in the first land area communicates with the fine groove, and includes: a deeper section between a corresponding first main groove and the intersection with a corresponding lug groove; and a shallower section between the fine groove and the intersection with the corresponding lug groove, the shallower section being shallower than the deeper section.
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