| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulling-in prevention device for an elevator door having a photoelectric device only in a car to simplify the device. SOLUTION: This pulling-in prevention device for the elevator door is provided with a projector 2 provided in the upper side of the car 20 and emitting light signals; a reflecting plate 3 provided in the lower side of the car 20 and reflecting the light signals passing between the car 20 and a car side door 21; a reflecting plate 4 provided on a landing floor 12 and reflecting the light signals reflected by the reflecting plate 3; a reflecting plate 5 which is provided on a landing ceiling 13 and reflects the light signals reflected by the reflecting plate 4 and passing between a landing 10 and a landing side door 11; a photo detector 6 provided in the upper side of the car 20 and receiving the light signals reflected by the reflecting plate 5; and a door control device 1 preventing opening/closing operation of the landing side door 11 and the car side door 21 when the light signals emitted from the projector 2 are not received by the photo detector 6 at the time of landing. COPYRIGHT: (C)2007,JPO&INPIT
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