| 摘要 |
PURPOSE:To improve a small sharp turning property in a simple structure by installing a rear-wheel steering control valve as a rotary valve in a gap with a feedback shaft out of a rear-wheel side steering link mechanism on the output shaft of a displacement take-off shaft. CONSTITUTION:Pressure oil being controlled with its supply according to a car speed is fed to a cylinder 12 constituting a rear-wheel steering displacement transfer control mechanism 14, and it is made to flow back via a fixed restrictor 13a of a piston 13, thereby determining a moving position of the piston 13 through size of a flow rate. In this piston 13, an input shaft 20 of front-wheel steering displacement information is coupled through a spline free of movement, and a notch groove 22 making a transfer play stroke variable is provided at the other end, and it is engaged with an engaging means 23 of an output shaft 21 with a play stroke conformed to a position of the piston 13 and transmitted to a rotary control valve 15, while it is fed back from a feedback shaft 32 via a torsion bar, steering rear wheels via a power cylinder. Thus, constitution is simplifiable and, what is more, a small sharp turning property is improved in this way. |
