Clutch-brake steering mechanism for tractors

Details Clutch-brake steering mechanism for tractors Clutch-brake steering mechanism for tractors

1983-05-23

1984-08-28

Krizmanich, George H.

192 clutches and power-stop control

Clutch and brake

Vehicle type

B60K 4124

Patent

active

044679009

ABSTRACT:
Clutch-brake steering unit having hydraulically actuated cylinders for controlling same to control rotation of a track-drive sprocket in a crawler tractor. Specifically a clutch cylinder and a brake cylinder provided in the unit have an inlet-outlet port in common, and are so arranged on a spring-applied-brake, hydraulically-applied-clutch basis that a single pressure signal in the inlet-outlet port alternately operates the cylinders to apply the brake and release the clutch, to apply the clutch and release the brake, or by proper modulation to partially engage either, i.e., slip the clutch or drag the brake to intermediate degrees as desired.

REFERENCES:
patent: 3321055 (1967-05-01), Randol
patent: 3374846 (1968-03-01), Massone
patent: 4029183 (1977-06-01), Toyomura
patent: 4122926 (1978-10-01), Spanke et al.

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