Bridgestone Corporation

Yukio Aoike

Hiroshi Shima

Masami Kikuchi

Takashi Yokoi

Takahisa Shizuku

Wataru Seki

Katsuhiro Kobayashi

A bead wire has a composition of Mn: 5-35 at % and Al: 5-20 at % and the remainder being Fe and inevitable impurities, in which a steel structure is an austenite single-phase structure, and achieves weight reduction and high ductility without reducing strength.

Lightweight and excellent ductile bead wire, method for producing the same and lightweight tire

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.

Method for measuring forces acted upon tire and apparatus for measuring forces acted upon tire

Growing community of inventors

Kodaira, Japan

Yukio Aoike