| 摘要 |
PURPOSE:To provide a four-wheel steering device where the minimum turning radius of an automobile can be greatly reduced, the parking in the longitudinal direction can be performed in a narrow space, the structure is simple, the manufacturing cost is small, and excellent maintenance can be attained. CONSTITUTION:When two front wheels 12L, 12R are steered close to the maximum steering angle, the steering condition is detected by pushingly pressing electric switches 17L, 17R pressed by members 16L, 16R, and two rear wheels 25L, 25R are steered by a hydraulic cylinder device 32 through a control valve 35. A switch 18 to switch the steering of the rear wheels 25L, 25R to either of the in-phase position (s) with the front wheels 12L, 12R, the antiphase position (o) or the neutral position (n) where the steering angle is 0 is mounted on a mounting table in an operating room. |
