Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1986-10-30
1989-03-14
Marmor, Charles A.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
180141, 180143, 180158, 280 91, B62D 5087
Patent
active
048118052
ABSTRACT:
A rear-wheel steering apparatus includes a steering unit for steering the front wheels in association with a rotation of the steering wheel, and a hydraulic actuator for steering the rear wheels. The actuator has first and second hydraulic chambers and a drive member connected to the rear wheels and operating in accordance with an oil pressure supplied to the hydraulic chambers. A directional control valve is provided between the steering unit and the actuator. The valve supplies oil pressure to the actuator in association with the operation of the steering unit. The valve includes a casing, and a valve body slidably arranged in the casing. First and second pressure chambers filled with oil pressure are defined in the casing. When the steering angle of the front wheels is smaller than a predetermined angle, the valve body moves to an in-phase position for supplying oil pressure to the actuator so that the rear wheels are steered in the same direction as the front wheels. When the steering angle is larger than the predetermined angle, the valve body moves to an antiphase position for supplying oil pressure to the actuator so that the rear wheels are steered in the direction opposite to the steering direction of the front wheels.
REFERENCES:
patent: 3185245 (1965-05-01), Hoyt
patent: 4295657 (1981-10-01), Sano et al.
patent: 4534435 (1985-08-01), Shibahata et al.
Honda Masahiro
Takizawa Shozo
Yoshida Yasuhiko
Marmor Charles A.
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
LandOfFree
Rear-wheel steering apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rear-wheel steering apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rear-wheel steering apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-888821