Tire

摘要

A land block (100) has: a side surface (101) (which constitutes a lateral side surface section) forming a groove wall of a lateral groove (40A); and a side surface (102) (which constitutes a circumferential side surface section) forming a groove wall of a circumferential groove (20A). A protrusion (200) protruding from the side surface (101) in the circumferential direction (tc) of the tire and extending in the radial direction of the tire is formed in the region (101a) of the side surface (101) which is located at a position further toward one side of the side surface (101) in the width direction of the tread than the center of the side surface (101) in the width direction (tw) of the tread.

主权项

1. A tire comprising:
a tread portion having a grounding surface contacting with a road surface; a plurality of lateral grooves which are depressed inside of a tire radial direction from the grounding surface, and which are formed along a tread widthwise direction; a plurality of circumferential grooves which communicate with the plurality of lateral grooves, which is depressed inside of a tire radial direction from the grounding surface, and which is formed along a tire circumferential direction; and a plurality of land blocks which are partitioned by the lateral grooves and the circumferential grooves, wherein the plurality of lateral grooves, the plurality of circumferential grooves, and the plurality of land blocks are formed at the tread portion, the lateral grooves cross the circumferential grooves in a range of the tread widthwise direction in which the lateral grooves are formed, the land block comprising:
a lateral side face portion forming a groove wall of the lateral grooves; anda circumferential side face portion forming a groove wall of the circumferential grooves, wherein a protrusion protruding in the tire circumferential direction from the lateral side face portion and extending in a tire radial direction is formed in a region of one side of the tread widthwise direction of the land blocks more significantly than a central part of the lateral side face portion, the tire further comprising:
a bead portion, a side wall portion communicating with the bead portion, the tread portion contacting with the road surface, and a buttress portion extending from a tread end part located outside of the widthwise direction of the tread portion toward inside of the tire radial direction leading up to a groove bottom of the lateral grooves, whereina buttress protrusion protruding in the tread widthwise direction and supplying pneumatic air to the lateral grooves is provided on the buttress portion.