Power-assisted steering system

Details Power-assisted steering system Power-assisted steering system

1979-10-15

1981-11-24

Silverstrim, John P.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

180162, 280 95R, B62D 506

Patent

active

043018823

ABSTRACT:
A power-assisted steering system for a motor vehicle comprises a flexible tie, the ends of which are wrapped in opposite directions around, and are anchored to drums which turn with the steering movements of the steerable guiding wheels. The tie carries at its center, rollers which follow fixed cams. The profiles of the cams are such that, during the steering of the wheels under the action of two hydraulic rams acting through racks and pinions fixed to the drums, the wheels always turn about a single common instantaneous center of turning. The rams are controlled by a distributor valve which is in turn controlled by a rocking lever which is actuated by Bowden wire cables from a steering wheel. The system is especially applicable to load handling trucks having small turning circles.

REFERENCES:
patent: 2368142 (1945-01-01), Kelley
patent: 2516074 (1950-07-01), Remde
patent: 3720282 (1973-03-01), Bianchetta
patent: 3882952 (1975-05-01), Crabb
patent: 3884320 (1975-05-01), Leveau

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