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:
Apr. 02, 2019
Filed:
Jun. 30, 2014
Bridgestone Corporation, Tokyo, JP;
Tadashi Wakiyama, Tokyo, JP;
Shoji Hayashi, Tokyo, JP;
Ietomo Matsunaga, Tokyo, JP;
Masaki Wada, Tokyo, JP;
Masafumi Koide, Tokyo, JP;
Tatsuya Nakai, Tokyo, JP;
BRIDGESTONE CORPORATION, Chuo-ku, Tokyo, JP;
Abstract
An object is to improve noise performance of a tire while enhancing movement performance thereof. At least one of the land portions () includes an outer wall surface () positioned on a vehicle outer side, an inner wall surface () positioned on a vehicle inner side, a tread surface () on an outer side in a tire radial direction, an outer edge () of the tread surface () in contact with the outer wall surface (), and an inner edge () of the tread surface () in contact with the inner wall surface (). The tread surface () is formed in a convex shape which is smoothly curved between the outer edge () and the inner edge () and which has a top portion () most protruded outward in the tire radial direction, in a cross section of the land portion () in a tire width direction. A relationship of Do <Di is satisfied when a distance between the top portion () and the outer edge () in the tire radial direction is denoted as Do, and a distance between the top portion () and the inner edge() in the tire radial direction is denoted as Di. The top portion () is positioned closer to the inner edge () side from a center (P) of the land portion () in the tire width direction.