| 摘要 |
<p>Folding curtain screen structure for a triangular window consisting of an upper bar (1) installed in a fixed manner along the oblique upper edge and a movable lower bar (2) linked at one end to one end of the upper bar (1)with screening material (3a, 3b, 3') folded in a zigzag form between them, pulling cords being present which run through at least two rows of openings (8,9,7,6) in the screening material and in the lower (2) and upper bar (1) so as to extend from the one end of the upper bar (1) to the outside, wherein the screening material (3a, 3b, 3') is cut so that, in the closed position of the structure, in which the lower bar (2) runs essentially horizontally the free boundary of the screening material runs along an essentially straight vertical line, and the pulling cords are threaded as at least one closed loop (A) through a row of openings (6) essentially parallel to and adjacent to the straight free boundary of the screening material and through at least one row of openings (8,9,7) which, in the closed position of the structure run along a circular arc with the pivot point (4) as centre.</p> |
