The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2018
Filed:
Oct. 01, 2012
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Yukihide Oya, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;
Abstract
A heavy duty pneumatic tire includes a clinch portion extending from the sidewalls to the beads. A concave curved surface extends on an outer surface of the clinch portion in a circumferential direction. A convex curved surface is engageable with the concave curved surface. A ratio R/Rof a radius of curvature of the concave curved surface to a radius of curvature of the convex curved surface, satisfies 1.7≤R/R≤3.9, a ratio D/Rof a depth of the concave curved surface to the radius of curvature of the convex curved surface satisfies 0.05≤D/R≤0.09, and the radius of curvature Rof the concave curved surface and the radius of curvature Rof the convex curved surface are each a radius of curvature of an arc on a cross section as taken along a plane including a center axis of the tire.