Patent ID: 11964521
Assignee: THE YOKOHAMA RUBBER CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A pneumatic tire, comprising:
a tread portion extending in a tire circumferential direction and having an annular shape;
a pair of sidewall portions disposed on both sides of the tread portion; and
a pair of bead portions disposed on an inner side in a tire radial direction of the pair of sidewall portions, at least one carcass layer formed by arranging a plurality of carcass cords in a radial direction being mounted between the pair of bead portions,
a tread development width TDW in the tread portion and a tire maximum width SW satisfying a relationship of 0.70≤TDW/SW≤0.75,
in a tire meridian cross-section, when a profile line forming an outer surface of the sidewall portions comprises at least three arcs having mutually different radii of curvature, an end point of the tread development width TDW is a point P1, and an end point of a tread pattern on an outer surface of the sidewall portions is a point P2, a radius of curvature R1 of an arc from the point P1 to the point P2, a radius of curvature R2 of an arc from the point P2 to a tire maximum width position, and a radius of curvature R3 of an arc forming a portion on an inner side in the tire radial direction from the tire maximum width position satisfying a relationship of R1>R2>R3 in the profile line, and
a height SDH in the tire radial direction from a bead heel of the bead portions to the tire maximum width position and a tire cross-sectional height SH satisfying a relationship of 0.47≤SDH/SH≤0.50.