Koyo Seiko Company, Ltd.

Tatsuhiro Yamamoto

Manabu Takaoka

Osamu Sano

Susumu Imagaki

Kunihiro Oka

Shigetaka Kinme

Masanori Kobayashi

Tatsuo Otsuka

Yoshio Ito

Tomoyuki Takei

A motor operated power steering device which transmits rotational force from a steering assistance motor to a steering shaft by way of a gear fitted around the outer circumference of the steering shaft. A torque limiter fitted in between the steering shaft and the gear comprises a torque setting member, which is subject to diametric deformation as a result of being fitted in between the outer circumference of the steering shaft and the inner circumference of the gear. Diametric force is applied to the steering shaft and the gear in accordance with the diametric deformation of the torque setting member. The limit torque value of the torque limiter corresponds to the diametric deformation of the torque setting member.

Motor operated power steering device

An electric power steering apparatus in which a shaft of a worm interlocking with rotation of a motor for steering assistance is movable in a radial direction, a pressing body for pressing the worm toward a worm wheel is provided, and the pressing body is provided with a V-shaped contact portion to abut in two circumferential positions of the shaft and an annular elastic body for restricting movement of the pressing body in a direction crossing the radial direction.

Electric power steering apparatus

Growing community of inventors

Kashiwara, Japan

Tatsuhiro Yamamoto