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US 2013/0220501 A1Published application
Pneumatic radial tire for passenger cars
AssigneeBridgestone Corporation
InventorsShintaro Hatanaka, Isao Kuwayama
Life of this patent
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Abstract
The pneumatic radial tire for passenger cars according to the present invention specifies the ratio W/L between the section width W and outside diameter L and includes a width direction groove located at an appropriate position on the tread surface.
Claims6
A pneumatic radial tire for passenger cars, provided with a pair of bead portions, a carcass formed by a ply of radial cords toroidally extending between the bead portions, and a tread, comprising:
- a section width W and an outside diameter L such that a ratio W/L is 0.24 or less;
- a tread edge main groove in at least half of a surface of the tread divided by a tire equatorial plane, the tread edge main groove being adjacent to a tread edge, separated from the tread edge in a tread width direction by a distance of at least 25% of a tread width TW, and extending in a tread circumferential direction;
- and
- at least one transverse groove in an adjacent land portion adjacent to a tread edge land portion defined by the tread edge main groove and the tread edge, the transverse groove extending from the tread edge main groove in the tread width direction and terminating within the adjacent land portion.
1 more element
Dependencies are inferred from the claim text.