Steering control system for crawler tractor type vehicles

Details Steering control system for crawler tractor type vehicles Steering control system for crawler tractor type vehicles

1982-09-08

1985-01-22

Mitchell, David M.

Motor vehicles

Steering by driving

Combined with manual steering

137596, 1375962, 180 67, 192 12C, 192 13R, B60K 4124, B62D 1108

Patent

active

044946210

ABSTRACT:
A steering control system for crawler tractor type vehicles with dual power trains which is capable of separately driving left and right endless track mechanisms and comprises an interlocking valve unit and a hydraulic circuit, the interlocking valve unit being located between a manually operated section and an actuating section and adapted to operatively connect these two sections with each other, the manually operated section including left and right steering levers and a commonly used brake pedal, the actuating section including left and right steering brake units and a center clutch unit, the hydraulic circuit selectively supplying hydraulic fluid delivered by a hydraulic pump into the actuating section in response to the action of the interlocking valve unit caused by the manipulation of either of the steering levers and/or the brake pedal.

REFERENCES:
patent: 3017941 (1962-01-01), Baker
patent: 3282286 (1966-01-01), Glidden et al.
patent: 3722541 (1973-03-01), Wilke
patent: 3760896 (1973-09-01), Kawamura et al.
patent: 3785450 (1974-01-01), Suzuki
patent: 3808812 (1974-05-01), Kawamura et al.
patent: 4015619 (1977-04-01), Shore et al.
patent: 4093048 (1978-06-01), Hakes et al.
patent: 4401132 (1983-08-01), Hakes et al.

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