Patent ID: 7406890

Claim:
A steering control device for a vehicle comprising: a housing; a first input shaft; a second input shaft; an output shaft supported by the housing in a state to allow the output shaft to rotate around an axis thereof and limit a linear motion in the axial direction and having a center line aligned on substantially the same straight line on which a center line of second input shaft is aligned, said output shaft being formed with a screw at an outer peripheral surface thereof; a nut mounted to the output shaft; a first transmission unit for rotating the nut in accordance with the rotational motion of the first input shalt so as to transmit the rotational motion of the first input shaft to the rotational motion of the output shaft; and a second transmission unit for linearly moving the nut in the axial direction of the output shaft in accordance with the rotational motion of the second input shaft so as to transmit the rotational motion of the second input shaft to the rotational motion of the output shaft.