Patent ID: 7549515
Filing Date: 2009-06-23
Classification: B66B

Abstract:
1. Elevator ( 2 ) comprising a car ( 4 ), a counterweight ( 6 ), a hoisting rope ( 8 ) for suspending the car ( 4 ) and the counterweight ( 6 ), a drive motor ( 10 ), a motor drive unit ( 26 ) for supplying the power to the drive motor ( 10 ), and a brake ( 18 ) for stopping the movement of the car ( 4 ) in an emergency situation, the elevator ( 2 ) further comprising an elevator rescue system ( 40 ), comprising an emergency power supply ( 42 ), an emergency brake switch ( 44 ) for connecting and disconnecting the emergency power supply ( 42 ) to the brake ( 18 ), and an emergency drive switch ( 46 ) for connecting and disconnecting the power of the emergency power supply ( 42 ) to the drive motor ( 10 ) and to the brake ( 18 ) wherein the elevator rescue system ( 40 ) further comprises the motor drive unit ( 26 ) and a power line ( 74 ) connecting the emergency power supply ( 42 ) with the motor drive unit ( 26 ) and including the emergency drive switch ( 46 ) and wherein the brake ( 18 ) and the motor drive unit ( 26 ) are coupled with each other in a way which allows energizing of the drive motor ( 10 ) only if the brake ( 18 ) is energized.