| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an elevator door open-traveling preventive device capable of preventing a car from traveling while an elevator door is open even when a brake is in trouble. <P>SOLUTION: The elevator door open-traveling preventive device comprises a solenoid (22) fixed to a balancing weight (5) of an elevator, a stopper (21) fixed to a guide (13) at the position corresponding to the balancing weight which is stopped when a car of the elevator is stopped at each floor, a transmitter (26) which transmits the signal when the car of the elevator is stopped at each floor in a door-opening state, and is provided on the guide at the position corresponding to the balancing weight, a receiver (27) fixed to the car to receive the signal from the transmitter, and a driving circuit (24) for preventing the balancing weight from being vertically moved by engaging a plunger (23) of the solenoid with the stopper by driving the solenoid when the receiver receives the signal. <P>COPYRIGHT: (C)2009,JPO&INPIT |
