Patent ID: 9346326
Filing Date: 2016-05-24
CPC Classification: B60C

Claim Text:
1. A pneumatic tire provided with a plurality of main grooves extending along the tire circumferential direction, lateral grooves extending in the direction inclined with respect to the tire width direction, and land portions partitioned by the main grooves and the lateral grooves on a tread portion, wherein the land portion includes an obtuse angle portion defined at an obtuse angle by the main groove and the lateral groove, and an acute angle portion defined at an acute angle by the main groove and the lateral groove, a plurality of holes are formed in a side wall of the land portion facing the main groove at intervals in the tire circumferential direction, and the holes formed on an obtuse angle portion side are arranged at positions closer to a ground contact surface of the land portion than the holes formed on an acute angle portion side, wherein among the plurality of holes a first set of holes are arranged adjacent to each other in the tire circumferential direction and at the same position in the depth direction of the main groove, and a second set of holes are arranged in a stepwise manner towards the ground contact surface in a direction from the acute angle portion of the land portion to the obtuse angle portion of the land portion.