| 摘要 |
Disclosed is a motor-operated power steering relative to coupling composition of a pinion sensor assembly in a motor-operated power steering of a steering device for a vehicle. According to an embodiment of the present invention, the motor-operated power steering comprises: a rack bar transmitting a driving force to a vehicle wheel; and a pinion sensor assembly wherein a pinion shaft is provided for torque transmitted from a steering wheel to be transmitted to the rack bar. The pinion sensor assembly comprises: an input shaft connected to steering shaft; a pinion shaft wherein the input shaft is coupled to an upper portion, and a pinion gear is provided to be engaged to the rack bar in a lower portion; and a torsion bar penetrating through the input shaft in an axial direction, and accommodated in the pinion shaft. In a coupling portion between the input shaft and the pinion shaft, each tapered portion is formed to be loosely engaged to each other. |
