Vehicle steering brake and clutch control

Details Vehicle steering brake and clutch control Vehicle steering brake and clutch control

1979-04-13

1981-11-10

Peters, Jr., Joseph F.

Motor vehicles

Steering by driving

Combined with manual steering

60435, 180 67, 192 13R, B60K 4124, B62D 1108

Patent

active

042993008

ABSTRACT:
A crawler tractor vehicle having steering clutches and associated steering brake includes a control apparatus for each clutch and brake system, including a valve made up of a valve body, and a clutch valving spool and a brake valving spool movably associated therewith. In one embodiment, the clutch valving spool and brake valving spool are identical in configuration, and are disposed in a common bore. Actuator means are associated with such clutch valving spool and brake valving spool, in one embodiment including an actuator assembly made up of a plurality of plungers movable relative to each other and relative to the valve body to provide particular movement of the clutch and brake valving spools. In another embodiment, the actuator means comprise mechanical linkage means, for providing movement of brake and clutch valving spools positioned in respective separate bores defined by the valve body.

REFERENCES:
patent: 2961057 (1960-11-01), Johnson
patent: 2989986 (1961-06-01), Scmitt
patent: 3374846 (1968-03-01), Massone
patent: 3815697 (1974-06-01), Bridwell et al.
patent: 3837449 (1974-09-01), Drone
patent: 3895703 (1975-07-01), Schmitt et al.
patent: 3899058 (1975-08-01), Pasquini

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