| 摘要 |
PROBLEM TO BE SOLVED: To provide a steering device capable of suppressing looseness of a fastening body.SOLUTION: A flange section 41a is formed over the peripheral direction whole area on an outer peripheral surface at one end of a ball screw nut 41. A groove section 41b is formed over the peripheral direction whole area on a peripheral surface of the flange section 41a. A driven pulley 52 is fitted to the outer peripheral surface of the ball screw nut 41 so as to cover the ball screw nut 41 corresponding to the shape of the flange section 41a of the ball screw nut 41. The driven pulley 52 includes a step section 52a corresponding to the flange section 41a, and an abutting surface 41c of the flange section 41a abuts on the step section 52a. The flange section 41a abuts on a cylindrical lock screw 44 on an abutting surface 41d to be an end face on an opposite side of the abutting surface 41c. The flange section 41a is held by the step section 52a of the driven pulley 52 and the lock screw 44 so as to fix the ball screw nut 41 integrally and rotatably to the driven pulley 52.SELECTED DRAWING: Figure 2 |
