| 摘要 |
<p>The device has polygonal plate-shaped closure units (1.11 - 1.15) opening and closing an opening e.g. a window opening. A geometrical rotation axis of the closure units runs through non-adjacent edges (1.66, 1.67) of the closure units. The closure units are designed in a rectangular shape and connected among each other by a coupling mechanism such that the closure units are moved. The closure units form an inclined level between a polygon side and a diametrically facing another polygon side in a closed condition.</p> |
