Steering brake and clutch control

Details Steering brake and clutch control Steering brake and clutch control

1981-06-25

1983-08-23

Purser, Ernest R.

192 clutches and power-stop control

Clutch and brake

Vehicle type

192 12R, F16D 6704

Patent

active

043998968

ABSTRACT:
A steering brake and clutch control for a crawler vehicle includes a pair of primary control levers, each of which, when operated by itself, acts through a spring to first effect disengagement of normally pressure-engaged clutch and then through a linkage to effect engagement of a brake. The clutch control levers are interconnected so that simultaneous actuation of the primary control levers results in both brakes being engaged without the clutches being disengaged. A pair of brake control levers have respective one-way connections with the pair of primary control levers and are spring-biased for simultaneously actuating the primary control levers to effect brake engagement. A pressure-operated plunger assembly is operative to maintain the brake control levers away from the primary control levers so long as sufficient hydraulic system pressure exists for normal operation.

REFERENCES:
patent: 29293 (1877-07-01), Ehlke et al.
patent: 3494449 (1970-02-01), Umeda et al.
patent: 3899058 (1975-08-01), Pasquini
patent: 4044849 (1977-08-01), Imon
patent: 4076107 (1978-02-01), Yasoshima
patent: 4088209 (1978-05-01), Drone

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