| 摘要 |
<p>A flat roof skylight which opens by vertically moving the sash (2). The skylight uses scissor mechanisms (4) to guide the moving sash (2) and rigid chain operators (12) to move the sash (2) and support the load of the sash (2). The guide mechanisms (4) and/or operators (12) may be integrated in the frame (1) / sash (2).</p> |
