| 摘要 |
PROBLEM TO BE SOLVED: To provide an elevator atmospheric pressure control device that is able to eliminate discomfort involving stuffed feeling of an ear, causing deglutition, while simplifying the configuration of the control device and a control method therefor.SOLUTION: In a control device for atmospheric pressure in an elevator car, pressure increase control is exerted such that, during a first operating period (first half Ta/2), atmospheric pressure Pi in the car changes stepwise in a positive pressure range where the atmospheric pressure Pi is higher than atmospheric pressure Po outside the car. Additionally, pressure decrease control is exerted such that, during a second operating period (second half Ta/2), the atmospheric pressure Pi in the car changes stepwise in a negative pressure range in which the atmospheric pressure Pi is lower than the atmospheric pressure Po outside the car. Furthermore, a control interval for atmospheric pressure in the car, which is shorter than an operating time required from when an ascending/descending operation initiates to the time when the operation terminates. During the control interval for atmospheric pressure in the car, the pressure increase control and pressure decrease control are exerted.SELECTED DRAWING: Figure 4 |
