Patent ID: 7413052
Filing Date: 2008-08-19
Classification: B62D,F16H

Abstract:
1. An electric power steering apparatus comprising an electric motor for producing a steering assist force, further comprising: a speed reducing mechanism for decelerating a rotation of a rotatable shaft in the electric motor; and a converting mechanism for converting an output rotation of the speed reducing mechanism into an axial movement of a steering shaft extending toward right and left sides of a vehicle, the speed reducing mechanism comprising an input pulley rotatably coupled to an input shaft driven by the electric motor, an output pulley arranged with the steering shaft enclosed thereby, a belt for connecting the input pulley and the output pulley, and a mechanism for adjusting a tension of the belt, the mechanism for adjusting the tension including a mechanism for changing a center-to-center distance between the input pulley and the output pulley, the mechanism for changing the center-to-center distance including: a guiding mechanism for relatively guiding a first housing for holding the input pulley and a second housing for holding the steering shaft in a predetermined guiding direction in which the center-to-center distance can be changed, the guiding mechanism comprising: a connection housing comprising: a speed reducing mechanism housing integrally formed with the second housing, the speed reducing mechanism comprising: