Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1985-10-24
1987-03-03
Pekar, John A.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
74498, 180148, B62D 506
Patent
active
046468676
ABSTRACT:
A four-wheel steering system comprises a steering wheel; a steering shaft which is connected to the steering wheel to be rotated in response to operation of the steering wheel and is provided with a first pinion fixedly mounted thereon; a rack bar which is supported for sliding motion in the transverse direction of the vehicle body, is provided with a first rack gear in mesh with the first pinion and a second rack gear, and is connected to the right and left front wheels by way of tie rods, a rear wheel turning force taking-out mechanism which includes a second pinion in mesh with the second rack gear on the rack bar and a rod member connected to the second pinion, and which converts the sliding motion of the rack bar into rotation of the rod member; and a rear wheel turning mechanism which is arranged to turn the rear wheels in response to rotation of the rod member. There are provided a first resilient pressing mechanism which presses one of the first and second rack gears, from the rear, towards the pinion in mesh therewith, and a second resilient pressing mechanism which presses the pinion in mesh with the other of the first and second rack gears toward said the other of the first and second rack gears.
REFERENCES:
patent: 2867284 (1959-01-01), Hruska
patent: 3207254 (1965-09-01), D'Espinassy
patent: 3753375 (1973-08-01), Colletti
Chikuma Isamu
Eda Hiroshi
Furutani Shigeki
Kanazawa Hirotaka
Shimada Satoru
Ferguson Jr. Gerald J.
Hoffman Michael P.
Malamud Ronni S.
Mazda Motor Corporation
Pekar John A.
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