| 摘要 |
PURPOSE:To provide an uncostly rear wheel steering device equipped with the same phase and opposite phase steering characteristics by furnishing the cam surface with a cam surface portion, which is for steering the rear wheels in the same phase when the front wheels steering angle is below a specified value, and another portion which steers the rear wheels in the opposite phase when it lies in a certain range exceeding the specified value. CONSTITUTION:When a steering wheel is turned clockwise with the steering angle remaining under a specified value, the rolling contact positions P, Q of rollers 54l, 54r are changed so that the rollers come in contact with No.3 cam surface 43l and No.1 cam surface 41r, respectively, and the whole output shaft is moved left, and the rear wheels are steered to the right, the same as the front wheels. When further turning rightwise attains the specified value, the rollers 54l, 54r are put in rolling contact with junctions Kl, Jr, respectively, to nullify the rear wheel steering angle. A still further turning rightwise beyond the specified steering wheel angle shall change the rolling contact positions P, Q so that the rollers 54l, 54r come in contact with No.4 cam surface 44l and No.2 cam surface 42r, respectively, and the rear wheel are steered in opposite phase to the front wheels. |
