Pneumatic tire

摘要

A shoulder main groove has a plurality of circumferential components inclined to an inside in a tire width direction toward a forward in a tire rotating direction. The circumferential components are communicated with each other via a lateral groove. A shoulder block row includes a first block positioned in a rear side in the tire rotating direction of the circumferential component, and a second block which has a smaller area of a top surface than the first block, and is adjacent to the first block with the lateral groove sandwiched therebetween. A plurality of projections elevating from a groove bottom and protruding out of a side wall of the second block are provided. A volume of the projection positioned in a trailing side of the second block is larger than a volume of the projection positioned in a leading side.

主权项

1. A pneumatic tire comprising:
a plurality of main grooves which extend in a tire circumferential direction; a shoulder block row which is arranged in an outer side in a tire width direction of a shoulder main groove which is positioned in an outermost side in the tire width direction among the main grooves; and a tread surface which is provided with a plurality of main grooves and the shoulder block row, wherein the shoulder main groove has a plurality of circumferential components which are inclined to an inner side in the tire width direction toward a forward in a tire rotating direction, and the circumferential components which are adjacent in the tire circumferential direction are communicated with each other via a lateral groove, wherein the shoulder block row includes a first block which is positioned in a rear side in the tire rotating direction of the circumferential component, and a second block which has a smaller area of a top surface than the first block, and is adjacent to the first block in the tire circumferential direction with the lateral groove sandwiched there between, wherein a plurality of projections which are elevated from a groove bottom of the shoulder main groove and protruding out of a side wall of the second block are provided so as to be spaced at a distance in the tire circumferential direction, and a volume of the projection which is positioned in a trailing side of the second block is larger than a volume of the projection which is positioned in a leading side, and wherein respective heights of the plurality of projections with the groove bottom of the shoulder main groove as a reference are within 25 to 70% of a groove depth of the shoulder main groove.