| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire allowing improvement of drainage property, while suppressing lowering of braking performance, when a main groove is formed. SOLUTION: This pneumatic tire 1 includes a land part 10 extending along a tire peripheral direction TR, and a land part 20 extending along the tire peripheral direction TR. The main groove 50 extending along the tire peripheral direction TR is formed between the land part 10 and the land part 20. A groove wall 10a of the land part 10 and a groove wall 20a of the land part 20 meander along the tire peripheral direction TR in a tread surface view. A groove width of the main groove 50 along a tread width direction TW is changed at a prescribed repeated period along the tire peripheral direction TR. When a maximum width part of the groove width is W<SB>MAX</SB>, a minimum width part of the groove width is W<SB>MIN</SB>and an average length along the tread width direction TW of the main groove 50 is A, relation of (W<SB>MAX</SB>-W<SB>MIN</SB>)/A≤0.25 is satisfied. COPYRIGHT: (C)2011,JPO&INPIT |
