Patent ID: 8511357
Filing Date: 2013-08-20
Classification: B60C

Abstract:
1. A pneumatic tire in which a tread surface is provided with a plurality of main grooves, and land portions defined by the main grooves, wherein all inside wall surfaces of the main grooves face an inner side at a time of being installed to a vehicle and are formed by a zigzag surface, the zigzag surface being constructed by alternately repeating a first portion in which an angle with respect to a tire circumferential direction is about 90 degrees and a second portion which is inclined with respect to the tire circumferential direction and all outside wall surfaces of the main grooves face an outer side at a time of being installed to the vehicle and are formed by a flat surface, in wall surfaces facing the main grooves in the land portions, and the land portions have sipes, all of which extend in a tire width direction and are open at each end, one end of each sipe being open in a root portion of the zigzag surface of one of the inside wall surfaces and the other end of each sipe being open to one of the outside wall surfaces formed by the flat surface.