| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire door device which enables a pressure difference between an ancillary room and an adjacent space to be instantaneously set at a predetermined magnitude irrespective of an installation location. SOLUTION: This fire door device (10) includes a fire door (20) for defining the ancillary room 1, which is arranged in an openable/closable manner in an evacuation section of a building, and a knob 30 which is provided on the fire door (20) and which allows the fire door (20) to make an opening motion when operated to be opened. The fire door device (10) also includes: a pressure adjusting door 23 which constitutes a part of the fire door (20), and which is moved for opening depending on the opening operation of the knob 30, so as to open a pressure adjusting port 22 formed in the fire door (20); and an opening movement amount adjusting means (281) for adjusting the amount of the opening movement of the pressure adjusting door 23 moving for opening depending on the opening operation of the knob 30. COPYRIGHT: (C)2010,JPO&INPIT
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