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:
Dec. 04, 2007
Filed:
Jun. 11, 2003
Hiroshi Shima, Kodaira, JP;
Katsuhiro Kobayashi, Kodaira, JP;
Wataru Seki, Kodaira, JP;
Yukio Aoike, Kodaira, JP;
Takahisa Shizuku, Kodaira, JP;
Hiroshi Shima, Kodaira, JP;
Katsuhiro Kobayashi, Kodaira, JP;
Wataru Seki, Kodaira, JP;
Yukio Aoike, Kodaira, JP;
Takahisa Shizuku, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
There is provided an apparatus for measuring forces acted upon a tire in which a radial force and a peripheral force acting to the tire, which are required for the high precision measurement of a friction coefficient on a road surface, are simply measured in a high precision by detecting a magnetic field formed by a magnet fixed to a tread portion of the tire by a magnetic sensor fixed to a rim and measuring the forces acting to the tire from a variant pattern of a magnetic flux density detected un the rotation of the tire and without influencing upon the balance of the tire, which contributes to the high precision measurement of the friction coefficient on the road surface.