| 摘要 |
<p>A safety door for buildings and rooms in general, has a supporting column (3), which disappears during the opening stage at the inside of a cavity (17) of the fixed works (1) at the side of the hinges (5), which remain at the outside of the cavity (17); the edge of the door body (4) opposite to the one of the hinges (5) disappears, during the closing stage, at the inside of a cavity (37) of the fixed works (1), opposite to the cavity (17).</p><p>The lock of the door is installed in the door body (4) in correspondence of its edge, which disappears at the inside of the cavity (37), in such a manner that only its keyhole or its control member are accessible from the outside or from the inside, through slits (11, 12) machined in the two bodies of the fixed works (1) delimiting said cavity (37) towards the outside and the inside. The seat of the door is surrounded by a closed continuous frame (2).</p> |
