Toyo Tire Corporation

Toyo Tire Rubber Co., Ltd.

Soichi Takahashi

Tire

In a pneumatic tire, in which a sub-grooveextending in a tire circumferential direction is provided on a shoulder land portion inside a width direction center of the shoulder land in a tire width direction, and the shoulder land portion is divided into an inner portioninside the sub-groovein the tire width direction and an outer portionoutside the sub-groovein the tire width direction, the shoulder land portion protrudes to the outside of a tire reference profile line L in a normal direction of the tire reference profile line on a cross-section in the tire width direction and a protrusion height Hat an sub-grooveside end of the outer portionis higher than a protrusion height Hat a sub-grooveside end of the inner portion

Pneumatic tire

An inner end () of a slit () provided in a shoulder rib () in a tire width direction is terminated within the shoulder rib (). The shoulder rib () includes a slit region () that has the slit () and a rib region () that has not the slit (). The shoulder rib () protrudes to the outside of a tire reference profile line L on a cross-section in the tire width direction and has a protrusion peak () in the rib region (). A ground contact surface of the shoulder rib () draw, on a cross-section in the tire width direction, an arch (M) passing through a ground contact end (), the protrusion peak (), and a point () on an inner sidewall of a shoulder-side main groove () in the tire width direction. The arch (M) passes through a point () on the tire reference profile line (L) or outside the tire reference profile line (L) in a normal direction of the tire reference profile line (L) at an inner end of the shoulder rib () in the tire width direction.

Growing community of inventors

Osaka, Japan

Soichi Takahashi