Vehicle suspension system having auxiliary spring for lightly lo

Details Vehicle suspension system having auxiliary spring for lightly lo Vehicle suspension system having auxiliary spring for lightly lo

1977-04-01

1979-11-27

Goodman, Philip

Land vehicles

Wheeled

Running gear

267 46, 267 56, B60G 1104

Patent

active

041757726

ABSTRACT:
A vehicle suspension system in which an auxiliary spring having a lower spring rate than the mainspring provides a resilient ride under empty or lightly loaded conditions by urging the mainspring toward the lower limit of its vertical travel. The auxiliary spring, which can be added to an existing suspension system of conventional design, extends continuously, without any stress concentrating reverse bends, from a selected point of attachment on the bottom of the frame to a hanger that retains an end of the mainspring. To accommodate differences in vehicle construction and make fine adjustments in the auxiliary spring rate, the point of attachment of the auxiliary spring to the frame can be varied or a wedge between the spring and the frame can be repositioned.

REFERENCES:
patent: 1558017 (1925-10-01), Kintz
patent: 1632993 (1927-06-01), Brush
patent: 1858930 (1932-05-01), Hoover
patent: 3194580 (1965-07-01), Hamlet
patent: 3434734 (1969-03-01), Poulos

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