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:
Aug. 25, 2009
Filed:
Aug. 24, 2006
Kiyoshi Funahara, Kobe, JP;
Kiyoshi Funahara, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Abstract
A tirecomprises a tread, a sidewall, a bead, and a carcass. The beadincludes a coreand an apexwhich extends outward in a radial direction from the core. The apexhas an outer layerand an inner layerwhich is located to the inside of the outer layerin the axial direction. A hardness of the outer layeris greater than that of the inner layer. A difference of the hardness between the outer layerand the inner layeris 15 or greater and 30 or less. A ratio of a thickness of the inner layerto that of the apexis 40% or greater and 60% or less. A ratio of a height HA in the radial direction of the apexto a height HS in the radial direction from a bead base line to an end of the treadis 40% or greater and 60% or less.