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:
Feb. 25, 2014
Filed:
Apr. 03, 2006
Hidemitsu Nakagawa, Kodaira, JP;
Hidemitsu Nakagawa, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
There is provided a pneumatic radial tire for a motorcycle enabling safe running the motorcycle in conformity to various road conditions by achieving both performances of wet performance, i.e., hydroplaning and traction performances in particular, and linearity in handling at high level. In the pneumatic radial tire for a motorcycle, (a) tilt lug grooves are disposed at a tilt angle of 5 to 85° relative to a tire circumferential direction, (b) a ratio of the minimum length Lmin thereof to the surface length W thereof along one side of a tread is 0.1 or higher, (c) two groups of the tilt lug grooves are formed of two or more tilt lug grooves disposed substantially in parallel from each other, (d) they are formed of a first group of tilt lug grooves (G) formed in a shape of chevron and a second group of tilt lug grooves (G) formed in a shape of reversed chevron, (e) the Gand Ggroups are alternately disposed in the circumferential direction, and (f) the Gand Ggroups are mutually disposed on both sides of the equator of the tire line-symmetrically with respect to the equator and with an offset in the circumferential direction.