NL8600845A - FOLDABLE CURTAIN SCREEN CONSTRUCTION FOR A TRIANGULAR WINDOW. - Google Patents

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.

Description

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Foldable curtain screen construction for a triangular window.

The invention relates to a foldable curtain screen construction, consisting of a fixedly arranged top beam and a movable bottom beam, with zigzag-shaped folded screen material between them, the top fold of which is attached to the top beam and the bottom fold of which is attached to the bottom beam, with drawstrings being present. which pass through at least two rows of apertures in the screen material and in the bottom and top beam to extend outwardly from one end of the top beam 10.

Such a construction is known for a rectangular window from the applicant's Dutch patent 167,220. When operating the pull cords, the horizontal bottom bar moves up or down parallel to itself, with the screen material folding or unfolding.

Such a construction is not suitable for a window in the form of a right-angled triangle. The two perpendicular sides then extend horizontally and vertically and the other base angle can have different values, for example 45 ° or less or for example 60: °

The top beam must then be attached to the hypothenusa of the right triangle. It will be clear that the known construction is then not usable.

Such triangular windows are common in top facades of houses or other buildings, but also in conservatories and there is an increasing need for 30 awnings for this, which may have to connect to a conventional rectangular awning, if the triangular window is an extension of a below located rectangular window, „- _j - · j ί * - 2 -

The object of the invention is to meet this request and this is achieved in that the bottom beam is hingedly connected at one end to one end of the top beam, in that the screen material is cut such that in the closed position of the construction, the bottom beam in the free boundary of the screen material extends substantially horizontally along a substantially straight vertical line and in that the pull cords are guided as at least one closed loop through a row of openings substantially parallel to and near the straight free boundary of the screen material and through at least one row of openings * which, in the closed position of the construction, run along a circular arc with the hinge point as the center »15 Due to the hinged connection between the two beams, the bottom beam can be swung down to the horizontal base of the triangular window.

Since the bottom beam at the hinge end moves a smaller distance from the top beam, a length compensation must be provided in the pull cords at the other end.

The pull cords must in any case run through the openings extending in a vertical straight line near the vertical straight boundary, in order to prevent sagging of the screen material in the raised position of the sun protection.

In the raised position, part of the screen material is not enclosed by the bottom beam, which then lies close to the top beam.

As with the known rectangular curtain screen construction, also with a triangle pleated screen material can be built up of one or more rectangular strips, which are provided at both ends with openings running in a straight line, through which the drawstrings 35 extend. Preferably, a further web of - - \ *, / **; · Λ '* / • i - 3 - screen material is present with a row of openings at both ends, which web at one end, the end of the hinge point remote from the hinge point. rectangular track loosely overlaps, which further track in the closed position of the construction, wherein the bottom beam thus runs substantially horizontally, forms the straight free boundary.

The invention will be further elucidated on the basis of a number of embodiments, in which:

Fig. 1 is a view of a so-called triangular pleat, 10 in which the screen material consists of one strip;

Fig. 2 is a view of a so-called triangular pleat, in which the screen material consists of a rectangular strip and an approximately triangular strip;

Fig. 3 shows a triangle pleated with two overlapping 13 'rectangular strips and an approximately triangular strip with one closed cord loop;

Fig. 4 shows the same pleated panel as FIG. 3 with two closed cord loops;

Fig. 5 shows a pleated blind with three overlapping rectangular strips and an approximately triangular strip with one closed cord loop;

Fig. 6 shows the same pleated panel as FIG. 5 with two closed cord loops;

Fig. 7 shows the same pleated panel as FIGS. 5 and 6 with 23 two closed cord loops and an open cord;

Fig. 8 shows a pleated net of four overlapping rectangular strips and an approximately triangular strip with a closed cord loop;

Fig. 9 shows the same plisse as fig. 8 with two closed cord loops;

Fig. 10 shows the same pleated blind as FIGS. 8 and 9 with three closed cord loops;

Fig. 11 shows a multi-loop compensation means.

The triangle pleated fabric according to the invention consists of a conventional top beam 1, a conventional bottom beam 2 and one or more strips of zigzag-shaped folded screen material, generally sun-resistant material.

Furthermore, one or more pull cords are provided, which>> ν - 4 - come out at one end of the top beam 1 to be operated. All this is entirely in accordance with the construction according to the Dutch patent 167.220.

The top beam 1 is thereby attached along the top edge of the window (not shown) and the bottom beam 2 can be lowered or raised.

A triangular window to be provided with a sun blind has the shape of a rectangular triangle, with a horizontal and a vertical boundary 10 and with a sloping top edge.

The screen according to Fig. 1 can be used for such a window, provided that the horizontal width is not too great.

In the manufacture and pleating of screen material 15, one is limited to a certain maximum width, generally of 1500 mm. This width is then cut into standard widths of 410, 450, 480, 510 and 580 mm.

In practice, a screen is built up from a number of strips of equal width, which overlap at the 20 ends. Openings are provided in these overlaps through which the drawstrings extend. This is also known from the Dutch patent 167.220.

According to the invention, the bottom beam 2 is hingedly connected at one end to the corresponding end of the top beam 1. This hinge can engage directly on the top and bottom beam, but can also be formed by a short piece of cord or the like 4, which extends through aligned openings in top beam 1, 30 screen material 3 and bottom beam 2 and which has a stop at the ends.

In the construction according to Fig. 1, two rows of openings are furthermore present. One row is indicated by 5 and the second by 6.

The left boundary line of the track 3 is straight and the row of openings 5 extends along a straight line when the top beam 1 and the bottom beam 2 'run parallel.

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The right boundary line is cut so that it is straight and vertical in the position shown in Fig. 1.

The row of openings 6 thus runs parallel, 5 close to the right boundary line. It will be clear that the construction can also be used in mirror image.

The drawstring A formed in a closed loop extends through the top beam 1, down through the row of openings 5, 10 through the bottom beam 2 to the right and through the row of openings 6 up and out again.

Loop A can move freely, both through both bars and through the screen material.

When the loop A is pulled, the bottom bar 2 pivots to the top bar 1 and the screen 5 collapses.

The screen 3 according to fig. 1 can also be made up of two parts, see fig. 2. The first and largest part is then formed by a rectangular strip 3a with rows of holes 5 and 7 at both ends, the one row 5 serving for the hinge cord 4.

The second and smallest part is formed by a more or less triangular track 3 ', with the row of holes * 6.

In the track 3a and the track 3 'there are a row of overlapping holes 7.

The cord loop A is then passed through the rows of holes 6 and 7 and is attached to the end stop of the bottom beam 2.

The construction according to fig. 3 and fig. 4 consists of two rectangular strips indicated by 3a and 3b and of a more or less triangular part 3 '.

The left lane 3a contains a row of holes for the hinge cord 4 on the left, in addition a row of holes 8 and on the right a row of holes 9, which are overlapped by the left side 35 of the lane 3b. The track 3b contains on the right the row of holes 7, which in turn are overlapped by the more or less triangular track 3 'with the holes 6.

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In fig. 3 one cord loop A is used, which runs down through the row 6, through the bottom beam 2 completely to the left, up through the row 8, through the top beam 1 to the right, through the row 9 down, through the bottom beam 2 to 5 right, through row 7 upwards and through top beam 1 outwards.

In Fig. 4, two cord loops A and B are used, which is preferable.

Loop A goes down through row 6, through bar 2 all the way to the left, up through row 8, and through bar 1 to the right 10 and out.

Loop B goes down through row 7, left through bar 2, up through row 9 and out through bar 1.

The loops A and B are connected by a cord D, which is guided over a freely rotating disc or roller 12 in a holder 13 by means of which the screen can be operated, see fig. 11. In this way compensation is obtained for the differences in distance over which loops A and B move.

In the construction according to Figs. -5, 6 and 7 three rectangular strips 3a, 3b and 3c are used and a more or less triangular strip 3 '.

In fig. 5 one cord loop A is used, which goes down through the row 6, in the bottom bar 2 to the left, up through the row 9, through the top bar 1 to the left, through the row 8 down, through the bottom bar 2 to right, through row 7 upwards and through top beam 1 outwards.

In Fig. 6, two cord loops A and B are used.

Cord loop A goes down through row 6, through bottom beam 2 to the left, up through row 8 and through top beam 1 to 30 to the right and out.

Cord loop B goes down through row 7, through bar 2 to the left, up through row 9 and through bar 1 to the right and out. The compensation means according to Fig. 11 are also used here.

In Fig. 7, two cord loops A and B and a cord C are used.

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The track 3a has a further row of holes 10 on the left.

Cord loop A passes through row 6 down through bar 2 to the left, up through row 10 up and through bar 1 to the right and out.

5 'Cord loop B runs down through row 7, through bar 2 to the left, up through row 8 and through bar 1 to the right and out.

A non-looped cord C passes through the top bar 1 to the left, down through the row 9 and through 10 the bottom bar 2 to the right, where it is attached to the right end stop.

Again, the two loops A and B are coupled by the cord D, while the cord C is connected to one of the loops A or B.

In the embodiment according to fig. 8, 9 and 10, four rectangular strips 3a, 3b, 3c and 3d are used, as well as an approximately triangular strip 3 '.

In the embodiment according to fig. 8 one cord loop A is used, which runs down through the row 6, through the bar 2 all the way to the left, through the row 8 up, through the bar 1 to the right, through the row 9 down, through the bar 2 to the right, through the row 10 upwards, through the bar 1 to the right, down the row 11, through the bar 2 to the right and up through the row 7.

Loops A and B are used in the embodiment according to Fig. 9.

Loop A goes down through row 6, through bar 2 all the way to the left, up through row 8, and through bar 1 to the right.

Loop B goes down through row 7, through bar 2 to the left, 30 through row 10 up, through bar 1 to the left, through row 9 down, through bar 2 to the right, up through row 11, and through bar 1 to the right.

The movement paths of the loops A and B are again compensated with a device according to fig. 11.

Three loops are used in the embodiment of Figure 10.

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Loop A goes down through row 6, through bar 2 to the left, through row 8 up, and through bar 1 to the right.

Loop B goes down through row 7, through bar 2 to the left, up through row 9 and through bar 1 to the right.

5 Loop C goes down through row 11, through bar 2 to the left, up through row 10, and through bar 1 to the right.

When the tracks 3a-3d have the same width, the loops B and C move the same distance.

They can thus be connected together with one end of the compensation cord D, while the loop A is connected to the other end of this cord D.

The width of the curtain construction can be increased by using even more rectangular strips.

The cord guiding system remains basically the same. 15 The number of cord loops depends on the number of strips. One additional cord may be used.

With an even number of rows of holes, only cord loops can always be used.

20 An odd number of holes also requires an additional cord.

The cord loops always move with respect to both beams and with respect to the webs of screen material.

25 The extra cord is always attached to one end of the bottom beam.

The cord loops and possibly the cord are operated simultaneously with one and the same handle and are connected to each other via the compensation means according to Fig. 11 or not.

Claims (3)

1. Foldable curtain screen construction, consisting of a fixedly arranged top beam and a movable bottom beam, with zigzag-shaped folded screen material between them, the top fold of which is attached to the top beam and the bottom fold of which is provided with drawstrings, which extend through at least two rows of openings in the screen material and in the bottom and top beam to extend outwardly from one end of the top beam, with the characteristic that the bottom beam is hinged at one end to one end of the top beam, such that the screen material is cut such that in the closed position of the construction, the bottom beam extending substantially horizontally, the free boundary of the screen material extends along a substantially straight vertical line and that the drawstrings are arranged as at least one closed loop are guided through a row of openings substantially parallel to and near the straight free boundary of In the screen material and through at least one row of openings, which in the closed position of the construction run along a circular arc with the hinge point as the center. 2. Foldable curtain construction as claimed in claim 1, wherein the screen material is built up of more or less rectangular strips, which are provided at both ends with openings extending in a straight line * through which the drawstrings extend, characterized in that a further web of screen material is present with a row of openings at both ends, which track 30 at one end, loosely overlaps the end of the rectangular track remote from the hinge point, which further. in closed position of the construction, the bottom beam thus running substantially horizontally forms the straight free boundary. 5 Foldable curtain construction according to claim 2, characterized in that with an even number of rows of openings the drawstrings form one or more freely movable closed loops, and with an odd number of rows of openings one additional drawstring is used, one end of which is attached on the bottom bar. ·; ; V ·. J