| 摘要 |
<p>A fire door (1) with improved fire resistance comprising a fixed frame (2) couplable to a fixed structure (4), and at least one movable frame (10) defining a movable leaf (10) of a door hinged to the fixed frame (2), on the edge of the movable leaf (10), at least on one side that is different from the pivoting side, a locking body (20, 40) being provided that is engageable to the fixed frame (2) in the presence of generation of heat, means being further provided for the actuation of the locking body (20, 40) which are constituted by a heat-expanding body (25).</p> |
