Patent ID: 8727065
Filing Date: 2014-05-20
Classification: B62D,F16H

Abstract:
1. An electric power steering device comprising: a steering shaft that includes an input shaft connected to a steering member, an output shaft connected to a steerable mechanism, and a torsion bar through which the input shaft and the output shaft are connected together; a torque sensor that detects steering torque loaded onto the steering shaft; an electric motor that is controlled based on an output of the torque sensor; a transmitting mechanism that includes a driving member and a driven member and that decelerates and transmits output rotation of the electric motor to the output shaft; a first bearing that rotatably supports the output shaft; a first housing that supports the first bearing; and a second housing that rotatably supports the driving member; wherein the driven member is rotatable together with the output shaft, the first housing includes a first bearing holding section that holds the first bearing, an eccentric engagement section that is eccentric with respect to the first bearing holding section such that a center of the eccentric engagement section is radially offset from a center of the first bearing holding section, and a torque sensor holding section that holds the torque sensor, the torque sensor holding section is concentric with the first bearing holding section, the second housing includes an engagement section fitted to the eccentric engagement section, and the eccentric engagement section of the first housing is arranged to be rotated with respect to the engagement section of the second housing when a center-to-center distance between the driving member and the driven member is adjusted.