Self-steering axle assembly for vehicles

Details Self-steering axle assembly for vehicles Self-steering axle assembly for vehicles

1987-08-11

1988-09-13

Bertsch, Richard A.

Land vehicles

Wheeled

Running gear

280 815, 280405R, 280661, B62D 6112

Patent

active

047704306

ABSTRACT:
The self-steering axle assembly includes a transverse axle member extending below the vehicle frame, either forwardly or rearwardly of the vehicle rear wheels, a king pin assembly on each of the opposite, outer end portions of the axle member, a wheel rotatably mounted on each of the king pin assemblies for steering movement and a tie rod interconnecting the wheels so they steer together. The axle member is supported from the vehicle frame for pivotal movement of the king pin assemblies relative to the frame between a forward position wherein the longitudinal axes of the king pin assemblies are upwardly inclined in a rearward direction at a forward angle of less than about 30.degree. relative to a vertical plane passing through the rotational axes of the wheels and a reverse position wherein the longitudinal axes are upwardly inclined in a forward direction at an angle of less than about 30.degree.. The king pin assemblies are selectively moved between the forward position for forward movement of the vehicle and the reverse position for backing, so that the wheels track vehicle movement in both directions.

REFERENCES:
patent: 2847228 (1958-08-01), Hall
patent: 3704896 (1972-12-01), Buelow
patent: 3880440 (1975-04-01), Tidewell
patent: 4084833 (1978-04-01), Mohrbacker et al.
patent: 4195856 (1980-04-01), Larson et al.
patent: 4373738 (1983-02-01), Lange
patent: 4449727 (1984-05-01), Roos

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