Steering apparatus for motor vehicles

Details Steering apparatus for motor vehicles Steering apparatus for motor vehicles

1985-07-23

1987-10-27

Mitchell, David M.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

92131, 180148, 280 91, B62D 506

Patent

active

047023333

ABSTRACT:
A steering apparatus for a motor vehicle has a steering gear connected to a first set of vehicle wheels, and a selectable auxiliary steering gear connected to a second set of wheels. The steering gear for the first wheel set is connected to a steering wheel and includes a hydraulic servo mechanism which provides steering assistance to the steering gear when the force required to turn the steering wheel exceeds a predetermined limit. A hydraulic pressure transmitting device is attached to the gear output of the steering gear and is hydraulically connected to the auxiliary steering gear. The pressure transmitting device transmits hydraulic pressure to the auxiliary steering gear, when auxiliary steering is selected, which varies in correspondence with movements of the gear output of the steering gear and which is independent of the pressure supplied to the hydraulic servo mechanism.

REFERENCES:
patent: 2354830 (1944-08-01), Reid
patent: 3227238 (1966-01-01), Strader
patent: 3572460 (1971-03-01), Berlich
patent: 3871469 (1975-03-01), Millard et al.
patent: 4351226 (1982-09-01), Cyrot
patent: 4467885 (1984-08-01), Furukawa et al.

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