WO2005098190A1

WO2005098190A1 - Slatted blind comprising an integrated protection system against insects

Info

Publication number: WO2005098190A1
Application number: PCT/CH2005/000193
Authority: WO
Inventors: Felix Fritz Leuenberger
Original assignee: Lamellanet Ag
Priority date: 2004-04-05
Filing date: 2005-04-04
Publication date: 2005-10-20
Also published as: EP1584781A1

Abstract

Known slatted blinds comprise slats (1) that are interspaced when lowered and can be pivoted about an axis (6) and gathered up when the blind is lifted. According to the invention, in order to prevent insects from entering, an insect repellent strip (10) consisting of a flexible material is respectively fixed between two adjacent slats (1). So that insects can also be prevented from entering by the side of the slatted blind, in the soffit region, said insect repellent strip (10) is longer than the slats (1) in such a way that it protrudes laterally past the slats, in the soffit region, where it comes into contact with the soffit or soffit profiled element (15) fixed thereto.

Description

Louvre blind with integrated insect protection

The invention relates to a slat blind with slats which are spaced apart from one another in the lowered state and pivotable about an axis and which are gathered together when the slat blind opens.

Louvre blinds of this type are used in particular to shade and / or darken rooms. Known slat blinds have horizontally arranged slats which can be pivoted about a central axis and which are gathered when the store is pulled up. In addition, insect screens are also known, in which a fine network is mixed in guide rails that are arranged in a window or door reveal. If you want to combine slatted blinds and insect screen blinds, this requires practically double the effort, since both the drive for pulling up and the side guides have to be carried out twice.

It has also been proposed to combine a slat blind and an insect protection device. The Swiss patent CH 690968 relates to a shutter or a blind with pivotable sun slats, each sun slat in a pivoted state forming an air inlet slot with an adjacent sun slat.

This shutter or the blind is characterized in that at least one insect protection slat is arranged on each Som en slat and that the insect protection slat bears against an adjacent sun slat at least in the pivoted state of the sun slats. According to the exemplary embodiment shown in the patent specification, each insect screen slat is only attached to the upper sun slat and only bears against the lower sun slat. When swiveling the sun slats, the insect protection slats move relative to the neighboring sun slats, against which they rest. This means that the insect protection slats must be made relatively rigid. The patent specification also specifies measures which are intended to prevent insects from penetrating into the building in question at the top and bottom slats. In the area of the window ledge, this measure consists of the fact that an insect screen slat hangs from the lowest sun louvre and lies loosely on the window ledge. Due to the stiffness of the island protection slats mentioned, this is

Confirmation head ^ Measure not very effective. It must be noted that the window ledges can be designed very differently, for example, weatherstrips protrude from window frames into the area of the store. If the slats are swiveled into their vertical position, the lowest insect protection slat lifts completely from the window ledge and can no longer prevent insects from entering. Nothing is mentioned in this document with regard to the lateral sealing in the area of the reveal. A major disadvantage of this slat blind is that it requires specially made slats. In the exemplary embodiment shown, the swiveling range of the slats is also limited to approximately 45 °, because each insect protection slat hangs on a projection of the sun slat arranged below it.

Patent application FR 1364674 shows a store with orientable slats, in which one end of each slat is connected to a web of fabric covering the entire window opening. The document JP 2000110462 relates to a store similar to the aforementioned document from France. There are none in these documents

Indications of a seal above the uppermost slat, below the lowest slat and to the side of the slats in the reveal area.

On the basis of this prior art, the object of the invention is to propose a slat blind which can be easily manufactured in different dimensions and in which insects can also be reliably prevented from entering laterally in the region of the reveal.

This object is achieved according to the invention in that an insect protection strip made of a flexible material is attached between two adjacent slats and that this insect protection strip is longer than the slats, so that it protrudes laterally over the slats.

Due to the above-mentioned lateral protrusion of the insect protection strips, which are made of a flexible material, it is very easy to attach these strips to one in the area of the window reveal

Leave the surface in line and thereby prevent insects from penetrating not only between the slats, but also on the sides of the slat blind in the area of the reveal. This surface can be the reveal itself, provided that it is set off accordingly or if the guide rail is embedded in the reveal. However, the surface is advantageously the surface of a reveal profile arranged in the reveal. In addition, in contrast to the solutions mentioned with a continuous fabric web, the assembly of the store according to the invention is extremely simple. Since the distance between the slats is always the same for a certain type of slat, the insect screen can be in the form of a

Tape must be kept ready, the width of which corresponds to the distance between the slats and which therefore only has to be cut to the required length. Another essential advantage of the invention is that it can be used on a conventional slat blind and for this purpose only minor changes need to be made to the slat blind.

According to a further embodiment of the invention, the reveal profile is preferably connected in one piece to a guide rail for the slat blind. Since each slat blind of this type has lateral guide profiles anyway, this embodiment is particularly cost-effective and easy to install.

According to a further embodiment of the invention, a soft support, preferably in the form of a brush, is arranged on the reveal profile, with which the insect protection strips are in contact in any pivoting position of the slats in the region in which they protrude laterally beyond the slats. This can compensate for inaccuracies in the distance between the slats and the reveal profile.

According to another embodiment, the reveal profile is designed in such a way that the distance of its surface facing the slats from the reveal can be adjusted. With this measure, the distance between the reveal profile and the lamellae can be set precisely and thus kept very small. This small distance is bridged by the strip projecting laterally over the slats and the strips lie securely against the reveal profile even if they only protrude a small amount over the slats. This measure of the adjustable reveal profile consequently enables secure lateral sealing, even if no soft support, for example in the form of a brush, is arranged on the reveal profile.

Various options are available for attaching the insect screen strips to the slats. possibilities conceivable. The insect protection strips are particularly preferably tightly fixed by means of a snap-in fastening on a longitudinal edge of each slat.

To seal the slat blind against the penetration of insects, a seal is preferably also attached to the uppermost slat, namely a so-called lintel seal, and a window sill seal can be attached to the lowest slat. The latter preferably consists of a profile with a semicircular cross section and a soft layer attached to its semicircular side facing away from the lowest lamella. The soft layer can be a brush or a foam layer.

An embodiment of the invention is explained below with reference to the accompanying drawings, for example. In the drawings shows

1 shows a vertical cross section through the upper part of a slat blind installed in a window opening, in the lowered state,

2 shows a vertical cross section through the lower part of the slat blind according to FIG. 1, likewise in the lowered state,

3 shows a section corresponding to FIG. 1, the store being raised,

4 shows a detail of a horizontal section of the store,

5 shows a detail of a frontal view of the store, for example seen from the window,

6 shows a representation similar to FIG. 3, an additional upper seal,

7 is a sectional view of an alternative reveal profile,

8 is a perspective view of a fill type of the window sill gasket,

9 shows a first variant of fastening the strips, 10 shows a second variant of the fastening of the strips,

11 shows a third variant of the fastening of the strips,

Fig. 12 shows a fourth variant of the attachment of the strips and

Fig. 13 shows a fifth variant of the attachment of the strips.

In Figures 1 and 2, the slats 1 are in their horizontal position with continuous

Lines shown. Each lamella 1 can be pivoted about an axis 6, its longitudinal edges 2, 3 covering one distance when pivoting, which is indicated by broken lines 4. The reference number 5 designates the slats in the vertically aligned state in which they overlap slightly, so that the store no longer lets light through. A drive for the store is arranged in a drive housing 7 and connected to a crank rod 8. Of course, the drive could also be equipped with a motor, in which case the crank rod would be omitted. The slats 1 are connected in a known manner with spacer strips 9 which determine the maximum distance between two adjacent slats in the open state of the store.

As can be clearly seen in FIG. 1, an insect screen in the form of a strip 10 made of a flexible material is fastened between two slats 1 at the edge facing the window. The material is preferably a fine-mesh fabric, but can also be a film, which is advantageously provided with a grid of fine holes in order to ensure the air circulation through the store. Fastening means 11, with which the insect protection is fixed to the slats 1, are only indicated in FIG. 1. This can be a snap connection which interacts with a flanged edge of the lamella. The fastening means 11 can, however, also be designed as clamps or wires which engage in small holes which have been attached for this purpose in the region of the edge of the lamella 1. In this way, the passage of insects between the slats 1 is made impossible. Since the distance between their longitudinal edges lying on the same side always remains the same when the slats are pivoted, the insect protection strip 10 does not hinder this pivoting movement. Actually it doesn't matter at which point of the slats 1 of the strip 10 is attached. As long as this point is the same for all slats, the distance between these points from one slat to the next remains the same when the slats are pivoted in parallel. For the fastening of the strips 10 to the slats 1, however, it is advantageous to choose a longitudinal edge 3 of the slats 1, as shown in the present example. In Figure 1 is also on the window facing

Side of the slats 1, a spacer tape 9 is drawn. This inner spacer band favors the folding in of the insect protection strips 10 when the slats are gathered.

9 to 13 show five examples of the fastening of the strips 10 on the inner longitudinal edge 3 of a lamella 1. FIG. 9 shows a variant with clamps 34 arranged on both surfaces of the lamella 1, which, for example, consist of plastic and can be connected to the lamella 1 by gluing. 10 shows that, in principle, a single clamp can also be sufficient to accommodate two strips 10, namely a strip 10 connected to the lamella adjacent (not shown) above and a strip 10 connected to the lamella adjacent (not shown) below the strips 10 are held securely in the lobes 34, they have thickenings 37 on their longitudinal edges, which can be formed, for example, in the manner of a hem. The hem can be formed by sewing, welding or gluing. It is also conceivable to sew in or otherwise fasten a profile, for example a type of cord, to the longitudinal edges of the strip in order to form the thickening 37. In many commercially available slats, at least one of the longitudinal edges 3 is flanged in order to give the slat increased bending stability. Figure 11 shows how this crimp can be used to secure one of the strips 10 while a clip 34 is provided for the other strip as described above. FIG. 12 illustrates that the flanging can also be used to fasten two strips 10, as was described above in connection with FIG. 10 for the clamp 34. Finally, FIG. 13 shows a variant in which the longitudinal edge 3 of the lamella 1 is cut at intervals and the sections separated from one another by these cuts alternately have upward and downward flanges 35, 36 into which the longitudinal edges of the strips 10 have the thickenings 37 can be drawn in. As the figure further shows, there is a small distance between the flanges 35 and 36, so that the height of the shirred lamella package does not become too great when the store is open. The downward flanges 36 then each protrude between two upward flanges. flanges 35 of the adjacent lamella 1 below and vice versa.

In order to prevent insects from passing through at the upper end of the store, a lintel seal 12 is arranged there, which can consist of the same material as the insect screen 10. The lintel seal 12 is on with its lower edge in the manner previously described the uppermost lamella attached and with its upper edge, for example, to the drive housing 7. If the lamellae are pivoted, the lintel seal is folded and assumes the position indicated by a broken line 13. The required width of the lintel seal depends on the height of the plate pack, which in turn depends on the height of the building opening in question. The lintel seal can

Can be assembled from several insect protection strips.

FIG. 6 shows an additional brush profile 26, which prevents insects from penetrating through a drive housing 7, which may not be closed on all sides. The brush profile 26 is held on the drive housing 7 by means of a holding profile 25 and extends inwards to the wall. As shown in the figure, the lintel seal 13 described above is also attached to this brush profile 26.

Figure 2 shows the lower end of the store in a completely lowered state. A lower end profile 18, on which a window sill seal 19 is arranged, is connected to the lowest slat 1 of the store. The latter consists of a profile 20 with a semicircular cross section and a soft pad 21. The pad 21 can be, for example, a brush with soft bristles or a layer of soft foam. As the figure clearly shows, the window sill seal 19 thus constructed rests on the window sill 22 in any pivoting position of the slats 1 and also easily adjusts to unevenness, such as a weatherstrip 23. Fig. 8 shows a perspective view of a possible embodiment of this window sill seal 19. It can be clearly seen how the profile 20 is offset on the one hand to accommodate the soft support 21 and how it has two upper, flat contact surfaces 33 with which it is on the end profile 18 can be attached, for example by gluing.

Figure 3 shows the store in the raised state, in which the slats 1 are gathered such that there is only a small distance between them. But this distance is still enough to accommodate the folded insect protection strips 10 between the slats 1. Also shown in this figure is the lintel seal 12, which has enough space in the area of the drive housing 7 to fold in.

Of course, the insects must also be prevented from passing between the lateral ends of the store and the window reveal. How this is achieved can best be seen in FIGS. 4 and 5. First of all, it can be seen in FIG. 4 that each lamella is guided laterally in a guide rail 14 by a guide pin 16 engaging in this guide rail 14. In addition to the guide rail 14, a reveal profile 15 is arranged which slightly projects beyond the inner longitudinal edge 3 of the slats 1 towards the window when the

Slat 1 is aligned horizontally. As can be seen, a narrow gap remains between the end face of the slats 1 and the reveal profile 15, which gap is required for the mobility of the slats. This gap is closed by the insect protection strip 10 in that it is longer by an amount than the slat 1, thereby protruding laterally from the slat 1 and forming a soffit seal 17, which has a soft pad 24 in at all times

Contact is available, which is attached to the reveal profile 15. Just like the previously mentioned support 21 of the window sill seal 19, the support 24 can also be designed as a brush. The projection 17 thus forms, together with the support 24, a reveal seal which can be seen particularly well in the front view in FIG. 5.

FIG. 7 shows, in a section enlarged somewhat compared to FIG. 4, an alternative embodiment of the reveal profile 15. This reveal profile according to FIG. 7 is composed of two profiles, namely a base profile 27 which is fixedly mounted in the reveal and a base profile which overlaps it. shaped adjustment profile 28. Threaded bushes 30 are arranged in the base profile 27 and screws 29 are accommodated in the adjustment profile 28, the rotation of which changes the distance between the two profiles 27, 28 such that the adjustment profile can assume the positions designated 31 in the figure. In this way, the distance between the adjustment profile 28 and the slats 1 can be adjusted very precisely, so that the projection 17 of the strip 10 which forms the lateral reveal seal can be kept to a minimum. In Fig. 7 it can also be seen that the guide rail

14 can be equipped with sliding profiles 32 made of plastic in order to promote low-wear and low-noise operation of the store. The slat blind according to the invention thus offers, in addition to protection against solar radiation, also reliable protection against the penetration of insects.

Reference numerals position slat horizontally aligned outer long edge of 1 inner long edge of 1 broken line (path) slat vertically aligned swivel axis drive housing crank rod spacer strip strips fasteners lintel seal with horizontal slat position lintel seal with vertical slat position guide rail soffit profile guide pin soffit seal lower end profile window sill seal profile of 19 brush from 19 window sill weatherstrip Support profile brush profile basic profile adjusting profile screw threaded bushing positions sliding profile contact surface clamp flange above flange below thickening at 10

Claims

P atentan speech

1. slat blind with spaced apart in the lowered state, pivotable about an axis (6) slats (1), which are gathered together when the slat blind is opened, characterized in that between two adjacent slats (1)

Insect protection strip (10) made of a flexible material is attached and that this insect protection strip (10) is longer than the slats (1) so that it protrudes laterally in the reveal area over the slats.

2. slat blind according to claim 1, characterized in that each reveal profile

(15) at both longitudinal ends of the slats (1) with which the insect protection strips (10) are in contact.

3. slat blind according to claim 2, characterized in that the reveal profile (15) with a guide rail (14) for the slat blind is preferably connected in one piece.

4. slat blind according to claim 3, characterized in that on the reveal profile (15) a soft pad (24), preferably in the form of a brush, is arranged with which the insect protection strips (10) in the area in which they are laterally protrude above the slats, in contact in any swivel position of the slats.

5. slat blind according to one of claims 2 to 4, characterized in that the reveal profile is designed such that the distance of its surface facing the slats (1) from the reveal is adjustable.

6. slat blind according to one of the preceding claims, characterized in that the insect protection strips (10) are fastened by means of a snap-in fastening (11) on a longitudinal edge of each slat (1).

7. slat blind according to one of the preceding claims, characterized in that a lintel seal (12, 13) is attached to the top slat (1).

8. slat blind according to one of the preceding claims, characterized in that a window sill seal (19) is attached to the lowest slat (1).

9. slat blind according to claim 8, characterized in that the window sill seal (19) consists of a profile (20) with a semicircular cross-section and a soft layer (21) attached to its semicircular side facing away from the lowest slat (1).

10. slat blind according to claim 9, characterized in that the soft layer (21) is a brush.

11. slat blind according to claim 9, characterized in that the soft layer (21) is a foam layer.