| 摘要 |
<p>Fire door which comprises - a fireproof canvas (1) in an upper drum (11); - a fixed frame (2) formed by two vertical profiles and an upper horizontal one in the form of a doorway, - a moving gripper frame (3) formed also by two vertical profiles and another horizontal one parallel to the fixed frame (2) and movable between a non-operational position, in which it is positioned at a distance from the fixed frame (2), said frames jointly demarcating a space for passage of the fireproof canvas (1), and an operational position wherein said moving gripper frame (3) presses the fireproof canvas (1) against the fixed frame (2), thereby sealing the door, - a second fixed frame (4) formed by two vertical profiles, serving as a support element for the moving gripper frame (3) and, - an actuating device for shifting the moving gripper frame (3) into the operational position.</p> |
