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1. (WO2018159782) TIRE

Pub. No.:    WO/2018/159782    International Application No.:    PCT/JP2018/007894
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Fri Mar 02 00:59:59 CET 2018
IPC: B60C 11/13
B60C 11/03
Applicants: BRIDGESTONE CORPORATION
株式会社ブリヂストン
Inventors: WATANABE Toshiyuki
渡辺 敏幸
Title: TIRE
Abstract:
Provided is a tire with which air column resonance noise can be reduced while maintaining the degree of freedom of the tread design, and uneven abrasion of the treads can be suppressed. The tire comprises, in a tread surface, at least one circumferential direction groove that extends continuously in the tire circumferential direction, and a shoulder land portion defined by the circumferential direction groove and a tread grounding end. The shoulder land portion has a first width direction groove that extends in the tire width direction and that establishes communication between the circumferential direction groove and the tread grounding end. The first width direction groove has, within the first width direction groove, a second width direction groove that communicates with the first width direction groove. The groove widths of the circumferential direction groove, the first width direction groove, and the second width direction groove satisfy the following relational expression: "groove width of circumferential direction groove > groove width of first width direction groove > groove width of second width direction groove".