192 clutches and power-stop control – Clutch and brake – Sliding operation
Patent
1976-12-22
1980-07-22
Krizmanich, George H.
192 clutches and power-stop control
Clutch and brake
Sliding operation
192 35, 192 54, 192 93A, 192 89A, 56 113, F16D 6702, A01D 6908
Patent
active
042135214
ABSTRACT:
The blades of a rotary lawn mower are driven by a constantly rotating shaft through a clutch-brake assembly which, when the operator leaves the operating station of the mower such as the mower handles, automatically disengages the blades from the shaft and brakes the blades while permitting the shaft to continue to rotate. The clutch-brake assembly is self-energizing and normally is engaged but is held in the disengaged condition by an actuator which also is self-energized and which initially is energized by a spring. The latter is effective to disengage the clutch and actuate the brake thereby to prevent the blades from rotating until the operator moves a manual member at the operating station to overcome the spring which initially energizes the actuator. This de-energizes the actuator so that the brake is disengaged and the clutch is engaged whereby the shaft rotates the blades.
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Krizmanich George H.
Warner Electric Brake & Clutch Company
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