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. 07, 2012
Filed:
May. 01, 2007
Yasuaki Kuniyasu, Kobe, JP;
Yasuaki Kuniyasu, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Abstract
A pneumatic tire including bead apex rubbershaving a rubber hardness Hsof 80 to 95 and extending radially outward from bead cores, and clinch rubbershaving a rubber hardness Hsof 65 to 85 lower than the rubber hardness Hsand forming outer surfaces of bead portions. A carcassis formed of an inner carcass plyA comprising a body portionextending between bead coresand turnup portionswhich are continuous with the body portionand are turned up around the bead cores, and an outer carcass plyB comprising a body portionwhich extends along the outer surface of the body portion, and the radially inner ends of which are sandwiched between the body portionand the bead apex rubbersto terminate there. The turnup height Lc of the turnup portionfrom the bead base line BL is 60% or less of the tire section height L, and the height Ld of inner ends of the body portionis 60% or less of the height Lof the bead apex rubber