Toyota Jidosha Kabushiki Kaisha

Yasuhiro Tsutiya

Yasushi Yamazawa

Katsumi Kondo

Takatsune Niimi

Takashi Yamamoto

Masaki Terada

Hiroyuki Sato

Kunihiro Matsuba

Tosio Aoki

A steering wheel made of resin, wherein a reinforcement, as a core of the steering wheel, consists of reinforcing members corresponding to a ring part, a sub-ring part and spoke parts, which are formed of windings and by hardening of a strand of continuously long fiber impregnated with a resin for hardening, after being wound onto the ring part, the sub-ring part and the spoke parts via a boss and spacers which are disposed at the joints between the ring part, the sub-ring part and the spoke parts.

Steering wheel

A method for the manufacture of a fiber reinforced resin structure having branched portions comprising, winding a long continuous resin impregnated fiber strand repeatedly on a molding jig having a predetermined structure, winding said fiber strand tightly around each of the branched portions of the structure, and hardening said resin.

Method for manufacture of fiber reinforced resin structure such as a

A core material for steering wheels, comprising a boss equipped with sleeves in a unitary structure, each of which sleeves has a slit in the axial direction thereof, said sleeves further being packed with superposed fiber strands; a ring portion; and spoke portions which connect said ring portion to said boss and being formed by winding and stretching continuous long-staple fiber strands impregnated with a resin to form the superposed strands within said sleeves.

Fiber-reinforced plastic core material for steering wheels

Growing community of inventors

Toyota, Japan

Yasuhiro Tsutiya