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:
Sep. 06, 2011
Filed:
Aug. 24, 2006
Makoto Ishiyama, Kodaira, JP;
Masafumi Koide, Hidaka, JP;
Makoto Ishiyama, Kodaira, JP;
Masafumi Koide, Hidaka, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A pneumatic tire for a motorcycle in which partial abrasion is suppressed by making the slip component of a tread lubber in the circumferential direction of tire as uniform as possible in the ground contacting plane. A cushion rubber layerhaving elastic modulus lower than that of the tread rubberis arranged on a spiral belt layer, and an inclination belt layerincluding a cord inclining at an angle of 45 to 90 degrees to the circumferential direction of the tire is arranged on the cushion rubber layer. Consequently, shear deformation of the cushion rubber layerduring traveling can be transmitted to the tread rubberafter being smoothed by the inclination belt layer. As compared with a case not provided with the cushion rubber layerand the inclination belt layer, shear deformation of the tread rubber layercan be reduced relatively because shear deformation occurs in the cushion rubber layerin place of the tread rubber; and since the slip component of the tread rubberin the circumferential direction of the tire becomes substantially uniform in the ground contacting plane, partial abrasion can be suppressed.