Pneumatic Tire

摘要

Provided is a pneumatic tire that can be obtained without requiring complicated design and has improved noise performance. On the inner vehicle-mounting side, the circumferential pitch length of the tire has pitch variation comprising at least three pitch lengths and, if the number of pitches is n and the pitch lengths (Pi) are Pi1, Pi2, Pi3, . . . , Pin, in order from the greatest pitch length, the pitch lengths satisfy the relationships Pi1/Pi2≦Pi2/Pi3≦ . . . ≦Pin−1/Pin, and Pi1/Pi2.

主权项

1. A pneumatic tire with a designated vehicle mounting direction, comprising:
in a tire tread portion, at least one main groove extending in a tire circumferential direction; and a plurality of inclined grooves intersecting with the main groove; on an inner vehicle-mounting side, in a region on an outer side in a tire width direction of the main groove positioned on an outermost side in the tire width direction, tire circumferential pitch lengths have pitch variations including at least three pitch lengths in a region formed of the inclined grooves and land portions adjacent to the inclined grooves on one side in the tire circumferential direction; and when a number of pitches is n and pitch lengths Pi are each defined as Pi1, Pi2, Pi3, . . . , Pin in the order from a greatest pitch length, relationships of Pi1/Pi2≦Pi2/Pi3≦, . . . ≦Pin−1/Pin, and Pi1/Pi2