Patent ID: 7520367
Filing Date: 2009-04-21
Classification: B62D

Abstract:
1. A vehicle steering apparatus wherein a steering handle is mechanically connected to a pair of left and right steering wheels for steering the steering wheels according to a steering operation of the steering handle, the vehicle steering apparatus comprising: a first differential gear mechanism that can output a rotation angle of an input shaft to an output shaft as increased or decreased, the first differential gear mechanism being arranged in a portion between the steering handle and one of the steering wheels; and a second differential gear mechanism that can output a rotation angle of an input shaft to an output shaft as increased or decreased, the second differential gear mechanism being arranged in a portion between the steering handle and the other of the steering wheels which portion does not include the portion between the steering handle and the one of the steering wheels; wherein the rotation angle outputted by the first differential gear mechanism is independent of the rotation angle outputted by the second differential gear mechanism, the first differential gear mechanism and the second differential gear mechanism are connected in mechanical series to the steering handle in this order, and the pair of left and right steering wheels are connected to the respective output shafts of the first differential gear mechanism and the second differential gear mechanism.