| 摘要 |
A pneumatic tire includes a narrow groove on a tread surface, inclined from the tire circumferential direction, groove width being smaller than groove depth, and an air inflow part opening to the tread surface and formed on one of the opposing groove walls. At least one end of the narrow groove is a terminal end. The air inflow part is disposed at the terminal end of the narrow groove, and in a development plan view of the tread surface, ∠XOY is an acute angle, where O is an intersection between a widthwise center line of the air inflow part and a groove widthwise center line of the narrow groove, X is a terminal endpoint of the air inflow part along the widthwise center line of the air inflow part, and Y is a lengthwise center point of the narrow groove along the groove widthwise center line. |
| 主权项 |
1. A pneumatic tire comprising:
a narrow groove formed on a tread surface and extending in a direction inclined with respect to a tire circumferential direction, a width of the narrow groove being smaller than a depth of the narrow groove, at least one end of the narrow groove is a terminal end terminating in a land portion; and an air inflow part opening to the tread surface and formed on at least one of groove walls of the narrow groove that face each other in the tire circumferential direction, wherein the air inflow part is disposed at the terminal end of the narrow groove, and in a development plan view of the tread surface, ∠XOY is an acute angle, where a point O is an intersection between a widthwise center line of the air inflow part and a groove widthwise center line of the narrow groove, a point X is a terminal endpoint of the air inflow part along the widthwise center line of the air inflow part, and a point Y is a lengthwise center point of the narrow groove along the groove widthwise center line of the narrow groove. |
