Zero bump steer suspension

Details Zero bump steer suspension Zero bump steer suspension

1989-09-05

1991-03-19

Rice, Kenneth R.

Land vehicles

Wheeled

Running gear

280673, B62D 1700

Patent

active

050004760

ABSTRACT:
A suspension system having a horizontal roll axis eliminates bump steer. The roll axis is formed by a line connecting the instant center of the axle locating links and the roll center. A pair of locating links trail rearwardly from a pivot point on the chassis to pivotal mounting point on the axle adjacent the wheels. In another embodiment, the roll center is controlled by a pair of lateral links which are mounted at their outboard ends to the axle and at their inboard ends to a pair of bellcranks pivotally mounted to the chassis, the bellcranks being linked to one another by a connecting link, gear teeth or a flexible member. The lateral links may also be mounted using compliant elastomer mounting points or by using a fore-aft pivoting A-arm mounted to the chassis. A rack and pinion steering mechanism may be mounted directly to the solid axle to enhance handling and reduce weight.

REFERENCES:
patent: 3633933 (1972-01-01), Millard
patent: 3858901 (1975-01-01), Johnson
patent: 3883152 (1975-05-01), de Carbon
patent: 4440419 (1984-04-01), Kosak et al.
patent: 4603881 (1986-08-01), Mikina

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