Patent ID: 9701163
Date: 2017-07-11
CPC Classifications: B60C

Claim:
1. A pneumatic tire provided with a tread pattern having land portions where a sipe is formed, wherein the sipe includes: groove side walls of the sipe which face each other in an opposed manner are disposed away from each other thus gradually increasing the groove width as the groove side walls extend toward the first large width portion from the opening end, the groove side walls which face each other in an opposed manner are disposed closer to each other thus gradually decreasing the groove width as the groove side walls extend toward the neck portion from the first large width portion, the groove side walls which face each other in an opposed manner are disposed away from each other thus gradually increasing the groove width as the groove side walls extend toward the second large width portion from the neck portion, and wherein the first large width portion has a larger groove width than the second large width portion.