Vehicle having a four-wheel steering device

Details Vehicle having a four-wheel steering device Vehicle having a four-wheel steering device

1994-09-23

1996-07-02

Ellis, Christopher P.

Land vehicles

Wheeled

Running gear

280 99, 180409, B62D 100

Patent

active

055314660

ABSTRACT:
A four-wheel steering vehicle having a body frame, front and rear wheels steerable by a steering wheel, and a connecting mechanism for transmitting movement of the steering wheel to the front and wheels. The connecting mechanism includes a pitman arm overhanging laterally of the body frame to be pivotable with turning of the steering wheel, a first front wheel knuckle arm operatively connected to one of the front wheels, a first rear wheel knuckle arm operatively connected to one of the rear wheels disposed at the same side as the other front wheel, a front wheel drag link disposed laterally outwardly of the body frame and extending longitudinally of the body frame, the front wheel drag link interconnecting the pitman arm and the first front wheel knuckle arm, and a rear wheel drag link extending substantially horizontally over and across the body frame, the rear wheel drag link interconnecting the pitman arm and the first rear wheel knuckle arm. The one rear wheel and the first rear wheel knuckle arm are operatively interconnected through a rear wheel kingpin assembly. The rear wheel kingpin assembly includes an inner support fixed to a rear axle case, an outer support, and a kingpin rotatable about a vertical axis and interconnecting the inner support and the outer support. The first rear wheel knuckle arm is fixed to an upper end region of the outer support.

REFERENCES:
patent: 3198541 (1965-08-01), Christenson et al.
patent: 3596730 (1971-08-01), Cecce
patent: 4738459 (1988-04-01), Nakamura et al.
patent: 4798393 (1989-01-01), Miura et al.
patent: 4977733 (1990-12-01), Samejima et al.
patent: 5288091 (1994-02-01), Deschamps

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