| 摘要 |
<p>A building roof or cover has at least one roof part (2) a closable roof aperture (3) in a roof surface (4) and a roll-off/roll-on mechanism with which at least one roof part (2) can slide to and fro between a rolled-in position and a rolled-out position along the length of the roof surface (4). A lift-up mechanism enables at least one part of the roof to be raised and lowered. A coupling mechanism blocks the rolling mechanism in the raised position of its at least one roof-part and releases it with the roof-part in the lowered position.</p> |
