| 摘要 |
An emergency escape apparatus for elevator is disclosed. In response to power outage manually pulling an actuation rope will pivot a pivot bar counterclockwise to rotate front and rear cams, press front and rear cams onto front and rear actuation members respectively, lower a pinion to be in mesh with a gear on a front of a drive sheave, press pressing rollers onto hoist ropes, activate a bar member to deactivate a brake, close a switch, and activate a backup motor to turn the pinion and the drive sheave through the gear, thereby lowering a car until a safe floor is reached. In another operation speeding the car will automatically enable an electromagnetic actuator to pull the actuation rope and activate a main motor to lower the car.
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