| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a door capable of preventing spread of fire because a gap between a lower end of a door body on a door end side and a door frame is effectively blocked at the time of occurrence of a fire on an indoor side.SOLUTION: A door body 2 is installed to be openable/closable within a rectangular door frame composed of vertical frames and horizontal frames. A sheet-like heat forming medium 28 is attached to a part of a bottom face of the door body 2 nearer to an indoor side. A sheet-like foaming regulation medium 29 for preventing foaming downward is additionally attached below the heat forming medium 28.</p> |
