Parking brake control

Details Parking brake control Parking brake control

1974-07-01

1976-06-08

Scott, Samuel

Machine element or mechanism

Control lever and linkage systems

Variable output force

74130, G05G 104

Patent

active

039615456

ABSTRACT:
According to the present disclosure, a multi-stroke parking brake control has a pulley connected to a parking brake cable, a slidable actuating rod and connecting means constructed to drive the pulley when the rod is displaced. A gear is rotatably supported on the pulley and is in mesh engagement with a toothed rack formed on the rod. A one-way helical spring clutch drivingly interconnects the pulley and the gear in response to rotation of the gear caused by movement of the rod in a direction to tension the brake cable. A second one-way helical spring clutch interconnects the pulley and the housing and functions to hold the pulley in a brake applied condition. A release mechanism is arranged to release the second helical spring clutch to permit the pulley and cable to move to a released position under the force of a release spring. This construction of a parking brake control permits the actuating rod to be stroked a plurality of times to tension the brake cable as desired.

REFERENCES:
patent: 2251893 (1941-08-01), Snell
patent: 2868887 (1959-01-01), Greshel
patent: 2869394 (1959-01-01), Koehl

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