Fail safe elevator governor rope emergency brake

Details Fail safe elevator governor rope emergency brake Fail safe elevator governor rope emergency brake

B - Operations, Transporting

66

B

B66B 5/24 (2006.01) B66B 5/04 (2006.01) B66B 13/24 (2006.01)

Patent

CA 2067284

Abstract The governor rope on an elevator is provided with an auxiliary brake which is a fail-safe brake and which operates to stop movement of the governor rope when the elevator car moves away from a landing with its doors open. The brake includes two rope gripper jaws in the machine room beneath the governor sheave, which jaws are held away from the governor rope by a solenoid so long as power is supplied to energize the solenoid. When the power supply to the solenoid is interrupted, the jaws are released to fall by gravity toward each other to grip the governor rope. The car emergency brakes are thus tripped and movement of the car stops. The brake may also be provided to control the counterweight governor rope. OT-913

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