| 摘要 |
The window leaves (F1, F2 etc.) of a window front are mounted pivotably in pairs on vertical bars (4) so that they can be pivoted out of the wall plane by 90 DEG and laid against one another. The vertical bars (4) are mounted displaceably in upper and lower guide rails (2, 3). In this manner, the window leaf pairs, which have been pivoted out by 90 DEG , can be pushed together on the guide rails to form a pack so that a large completely free wall opening is created. <IMAGE>
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