Pneumatic tire
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United States of America
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Feb 11, 2025
Grant Date -
Jul 7, 2022
app pub date -
Dec 28, 2021
filing date -
Dec 28, 2021
priority date (Note) -
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Abstract
To provide a pneumatic tire excellent in steering stability and fuel efficiency at high-speed driving, it is provided a pneumatic tire having a tread portion with a circumferential groove and a belt layer, wherein a monofilament cord is used as a reinforcing cord for the belt layer; the number of arrangements e (lines/5 cm) of the monofilament cords arranged per 5 cm in the tire width direction in the tire radial cross section of the belt layer is 50/5 cm or more; and the distance G (mm) from the surface of the land portion closest to the equatorial plane among land portions separated by the circumferential groove to the monofilament cord, and the loss tangent (30° C. tan δ) when the rubber composition constituting the surface of the tread portion is measured under conditions of temperature: 30° C., initial strain: 5%, dynamic strain: ±1%, frequency: 10 Hz, and deformation mode: tensile, satisfy 30° C. tan δ×G<1.5.
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