Leaf spring lift axle suspension system

Details Leaf spring lift axle suspension system Leaf spring lift axle suspension system

1983-05-16

1985-03-12

Bertsch, Richard A.

Land vehicles

Wheeled

Running gear

267 45, B60G 1146

Patent

active

045040800

ABSTRACT:
An upwardly biasing back-to-back, quarter-elliptic, diverging pair of leaf springs are employed as the lifting mechanism in a lift axle suspension system for wheeled vehicles. The springs normally bias the lift axle off of the road surface. By inflation of air bags, the wheels are lowered into engagement with the road surface against the normal upward bias of the leaf springs. Release of the air automatically retracts the wheels to their riding, lift position.

REFERENCES:
patent: 1819548 (1931-08-01), Erickson
patent: 3285621 (1966-11-01), Turner, Jr.
patent: 4102424 (1978-07-01), Heinze
patent: 4134604 (1979-01-01), Jackson
patent: 4166639 (1979-09-01), Taylor
patent: 4373738 (1973-02-01), Lange

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