Pneumatic tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorNoriyoshi Watanabe
Life of this patent
Estimating the term…
Abstract
A pneumatic tire is provided including a multiplicity of land portions 3A, 3B, 3C, 3D, and 3E formed by main grooves 2 extending linearly in the tire width direction partitioning the tread surface 1, and having a designated mounting direction on a vehicle. Among the multiplicity of land portions 3A, 3B, 3C, 3D, and 3E, lug grooves are not provided in a ground contact region R of the land portions 3A and 3E positioned on both shoulder sides. Lug grooves 4 inclining in the tire circumferential direction that have terminating parts in the land portions and opening to the main groove 2 on the vehicle inner side are formed at specified intervals in the tire circumferential direction in the land portions 3B and 3D inwardly adjacent to the land portions on both shoulder sides.
Claims20
A pneumatic tire having a designated mounting direction on a vehicle comprising:
- a plurality of main grooves provided on a tread surface extending linearly in a tire circumferential direction;
- and a multiplicity of land portions formed by the main grooves partitioning the tread surface, wherein,
- among the multiplicity of land portions,
- lug grooves are not provided in a ground contact region of the land portions positioned on both shoulder sides,
- lug grooves inclining in the tire circumferential direction that have terminating parts in the land portions and opening to the main grooves on a vehicle inner side partitioning the tread surface into the land portions are formed at specified intervals in the tire circumferential direction in land portions adjacent to an inner side of the land portions on both shoulder sides, the lug grooves being open only to the vehicle inner side,
- and a length of the lug grooves extending in the tire width direction is 40 to 60% of a width of the land portions in which the lug grooves are formed and an inclination angle on an acute angle side of the lug grooves with respect to the tire circumferential direction for the land portions on the vehicle outer side is equal to or less than that of the land portions on the vehicle inner side.
Dependencies are inferred from the claim text.