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:
Oct. 30, 2018
Filed:
Mar. 11, 2014
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Kei Kohara, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-shi, Hyogo, JP;
Abstract
Provided is a pneumatic tire which is configured so as to prevent carcass cords from biting into an inner liner, thereby improving the durability performance of the tire. A pneumatic tire () is provided with a carcass () which comprises, a carcass ply () extending from a tread () through side walls () to the bead cores () of bead sections (), the bead cores () each including an inner core () and an outer core (). The carcass, ply () is sandwiched between the inner cores () and the outer cores (). Each of an inner core () and an outer core () includes a bead cord () which is wound at least one turn in the circumferential direction of the tire. Each of the bead cords () includes an outermost layer () formed by twisting filaments () together. In at least one bead section, the outermost layer () of the bead cord () of each of the inner core () and the outer core () is twisted in the direction which allows the carcass ply () to easily move to the outside in the radial direction of the tire from between the inner core () and the outer core ().