Pneumatic tire
AssigneeBridgestone Corporation
InventorMasashi YAMAGUCHI
Life of this patent
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Abstract
The present invention relates to a pneumatic tire 1 in which turbulent-flow generating projections 10 each extending from an inner circumference side to an outer circumference side are provided on a outer circumferential face 3a which is tire surface of tire side portion 3 at intervals in a tire circumferential direction. Each of the turbulent-flow generating projections 10 includes an edge portion 10g when being viewed in a cross-sectional shape taken along a direction perpendicular to an extending direction thereof, and a front wall angle θ formed between a front wall face 10a of each turbulent-flow generating projection 10 and the tire surface (outer circumferential face 3a) is set in the range of 70° to 110°, the front wall face being hit by an airflow.
Claims12
A pneumatic tire in which turbulent-flow generating projections each extending from an inner circumference side to an outer circumference side are provided on a tire surface at intervals in a tire circumferential direction, wherein:
- each of the turbulent-flow generating projections includes an edge portion when being viewed in a cross-sectional shape taken along a direction perpendicular to an extending direction thereof;
- and
- a front wall angle formed between a front wall face of each turbulent-flow generating projection and the tire surface is set in the range of 70° to 110°, the front wall face being hit by an airflow,
- wherein each of the turbulent-flow generating projections is provided in a groove formed in a tread portion.
Dependencies are inferred from the claim text.