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:
Sep. 26, 2017
Filed:
Nov. 27, 2012
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Ikuo Atake, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES LTD., Kobe-Shi, Hyogo, JP;
Abstract
Shoulder drop wear and triangular wear are prevented. A heavy duty tire which includes a shoulder block includes a first arc portion having a radius of curvature, in which a tread contour includes an arc center at a tire equatorial surface at a 5% internal pressure state; and a second arc portion having a radius of curvature of which intersects with the first arc portion at an intersection. An arc center of the second arc portion is located on a radial line passing through the intersection. A ratio of the radii of curvature is between 0.2 and 0.5. A ratio between a tire radial direction distance from an equatorial point to a tread edge and a radial direction distance from the equatorial point to a virtual tread edge on a line extending from the first arc portion is equal to or higher than 0.5 or lower than 1.0.