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EP0240065B1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Folding curtain screen structure for a triangular window

Assignee: Bw Interior Products Bv
•
Filing: 1987-03-20
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Granted: 1989-06-28
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Expires: 2007-03-20
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Abstract

Abstract 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.

Inventors

  • 👤 Remmelt Cornelis Niemeijer

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 16:19
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/262; E06B2009/2482; E06B2009/2488; E06B2009/2494; E06B2009/2625

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 229 words
Folding curtain screen structure for a window with an oblique upper edge consisting of an obliquely extending upper bar installed in a fixed manner and a movable lower bar with screening material folded in a zigzag form between them, the uppermost fold being attached to the upper bar and the lowermost fold being attached to the lower bar, pulling cords being present which run through at least two rows of openings in the screening material and in the lower and upper bar so as to extend from the one end of the upper bar to the outside, whereby the screening material is cut so that, in the closed position of the structure, in which the lower bar runs essentially horizontally the free boundary of the screening material runs along an essentially straight vertical line, with one of said rows of openings essentially parallel to and adjacent to the straight free boundary of the screening material characterized in that the lower bar is pivotably linked at one end to one end of the upper bar and in that the pulling cords are threaded as at least one closed loop through said row of openings parallel to the vertical boundery of the screening material and through at least one row of openings which, in the closed position of the structure run along a circular arc with the pivot point as centre.
Claim 2
Dependent Claim 229 words
Folding curtain screen structure for a window with an oblique upper edge consisting of an obliquely extending upper bar installed in a fixed manner and a movable lower bar with screening material folded in a zigzag form between them, the uppermost fold being attached to the upper bar and the lowermost fold being attached to the lower bar, pulling cords being present which run through at least two rows of openings in the screening material and in the lower and upper bar so as to extend from the one end of the upper bar to the outside, whereby the screening material is cut so that, in the closed position of the structure, in which the lower bar runs essentially horizontally the free boundary of the screening material runs along an essentially straight vertical line, with one of said rows of openings essentially parallel to and adjacent to the straight free boundary of the screening material characterized in that the lower bar is pivotably linked at one end to one end of the upper bar and in that the pulling cords are threaded as at least one closed loop through said row of openings parallel to the vertical boundery of the screening material and through at least one row of openings which, in the closed position of the structure run along a circular arc with the pivot point as centre.
Claim 3
Dependent Claim 101 words
Folding curtain structure according to Claim 1, in which the screening material is constructed of one or more rectangular sheets which are provided at both ends with openings running in a straight line through which the pulling cords extend, characterized in that a further sheet of screening material is present with a row of openings at both ends, which sheet loosely overlaps at one end the end of the rectangular sheet facing away from the pivoting point, which further sheet, in the closed position of the structure in which the lower bar runs essentially horizontally, forms the straight free boun dary.
Claim 4
Dependent Claim 56 words
Folding curtain structure according to Claim 2, characterized in that with an even number of rows of openings the pulling cords form one or more freely movable closed loops, and in that with an odd number of rows of openings an extra pulling cord is used, an end of which is attached to the lower bar.

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