| 摘要 |
PROBLEM TO BE SOLVED: To provide a fitting that allows a wide ventilation passage to be formed and ventilation using an airflow derived from a small negative pressure.SOLUTION: A bathroom door 1 as a fitting includes a frame body 10, a sash 20, and an opening/closing mechanism 30, the frame body 10 having a ventilation passage S formed that communicates the bathroom side with a dressing room side. The opening/closing mechanism 30 is installed along the ventilation passage S, the opening/closing mechanism having an opening/closing member 31 supported on the frame body 10 and a valve body 34 supported on the opening/closing member 31. The opening/closing member 31 and the valve body 34 are installed so as to close the ventilation passage S when both the opening/closing member and the valve body are positioned at a closing position of the ventilation passage S. The valve body 34 makes an opening movement when a pressure in the bathroom reaches a value greater than or equals to a first negative pressure, while the opening/closing member 31 makes an opening movement when the pressure inside the bathroom reaches a value greater than or equals to a second negative pressure that is greater than the first negative pressure.SELECTED DRAWING: Figure 2 |
