Patent ID: 7014009
Filing Date: 2006-03-21
Classification: B62D,F16D

Abstract:
1. A motor operated power steering device, comprising: a steering shaft; a gear fitted around the outer circumference of the steering shaft; a steering assistance motor which transmits its rotational force by way of the gear to the steering shaft; and a torque limiter fitted in between the steering shaft and the gear; wherein: the torque limiter comprises a torque setting member, which is subjected 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; the torque setting member causes a diametric force corresponding to its diametric deformation to act on the steering shaft and the gear; the steering shaft is forced into the gear; and the limit torque value of the torque limiter corresponds to the total of the first frictional resistance, which corresponds to the diametric deformation of the torque setting member, and the second frictional resistance, which corresponds to the press fit force with which the steering shaft is forced into the gear.