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. 05, 2014
Filed:
Nov. 20, 2009
Shinsaku Katayama, Kodaira, JP;
Shinsaku Katayama, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A pneumatic tire for motorcycle is provided which can improve the traction performance especially during sharp cornering by largely leaning a vehicle (motorbike) followed by acceleration, and the stability during leaning of a vehicle in addition to enhancing steering stability at high speed. A pneumatic tire for motorcycle having a tread portionformed in a circular shape, the tread portionhaving a crown portion which has a spiral belt layerin its inside in the radial direction of the tire, the spiral belt layer having an angle of 0 to 5° with respect to the circumferential direction of the tire and an arrangement width 0.5 to 0.8 times as large as the tread width, wherein the spiral belt layer is arranged in such a manner that the center of the transverse direction of the spiral belt layer coincides with the tire equator and the curvature radius (R) from one the end portion of the spiral belt layer to the end portion of the tread portion is larger than the curvature radius (R) from the end portion of the spiral belt layer to the equatorial plane.