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US 2022/0324258 A1Published application
Pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorsManabu INOUE, Noboru OKABE
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Abstract
A pneumatic tire includes a ply having a plurality of cords each having an average cord diameter D, and a sidewall rubber having a loss tangent tan δ The plurality of cords each includes a plurality of filaments twisted together, the plurality of filaments each having an outer diameter d. The plurality of cords each has a ratio D/d of the average cord diameter D to the outer diameter d being equal to or more than 28. The ratio D/d and the loss tangent tan δ of the sidewall rubber satisfy the following formula; (tan δ)/(D/d)*1000≤5.5.
Claims20
A pneumatic tire comprising:
- a ply having a plurality of cords each having an average cord diameter D;
- and
- a sidewall rubber having a loss tangent tan δ,
- wherein
- the plurality of cords each comprises a plurality of filaments twisted together, the plurality of filaments each having an outer diameter d,
- the plurality of cords each has a ratio D/d of the average cord diameter D to the outer diameter d being equal to or more than 28, and
- the ratio D/d and the loss tangent tan δ of the sidewall rubber satisfy the following formula (1);
- (tan δ)/(D/d)*1000≤5.5 (1).
5 more elements
Dependencies are inferred from the claim text.