WO2007118488A1

WO2007118488A1 - Slatted blind

Info

Publication number: WO2007118488A1
Application number: PCT/EP2006/003419
Authority: WO
Inventors: Felix Fritz Leuenberger; André CHABLAIS
Original assignee: Lamellanet Ag
Priority date: 2006-04-13
Filing date: 2006-04-13
Publication date: 2007-10-25

Abstract

The object of the invention is to provide a slatted blind with easily produced slats (1) which have a high flexural strength and to which functional elements such as swivel pins can be attached very easily. Every slat (1) is delimited by two longitudinal boundaries (4, 5) running essentially parallel to the swivel axis and two side faces (15, 16) arranged essentially perpendicular to the longitudinal boundaries (4, 5). In addition, each slat (1) has a first groove (17) extending over its entire length which on both side faces (15, 16) of the slat (1) accommodates in each case one shaft pin (10) forming the swivel axis. Such slats can be produced very easily and cheaply, for example by extrusion. Because the shaft pins (10) are accommodated in grooves (17) no drill holes are required in the slat and the methods used previously for attaching the shaft pins to the slats such as welding, soldering, gluing or clamping are also dispensed with.

Description

slat blinds

The invention relates to a slatted blind with spaced apart in the lowered state, about an axis pivotable slats, which are gathered when opening the slats store, each slat is bounded by two substantially parallel to the pivot axis longitudinal edges and two arranged substantially at right angles to the longitudinal edges end faces ,

Known slat blinds have slats made of sheet metal or thin plastic. Many of the known sheet-metal laminations are flanged at their longitudinal edges to obtain increased flexural rigidity. In addition, the lamellae may be bent or folded between their longitudinal edges to further increase their rigidity. The pivot axes, with which the slats are guided in lateral profiles, are connected to the slats by welding, soldering, gluing or clamping. Finally, at the longitudinal edges of the known lamellae, traction means, such as ribbons, are fastened, which determine the distance between the lamellas and with which the lamellae are brought into the desired pivoting position. To connect the traction means with the lamellae holes are provided, for example, in the slats, which serve for the passage and / or attachment of the traction means, wherein optionally connecting pieces are inserted into the holes.

Despite the measures described for increasing the flexural rigidity of the slats, these slat blinds offer only a weak protection of privacy, since a person can bend the slats from outside the relevant room without great effort to see into the room or even in this break. Due to the relatively low bending stiffness of the known lamellae, these disturbances tend even in relatively weak wind to produce unpleasant, clanking noises and can even be destroyed by strong wind. The attachment of the pivot axes and the traction means on the slats is complex in the known slats. Laminated steel sheets also tend to rust once a protective coating, such as a paint, has been damaged. Based on this prior art, the invention is based on the object to propose a slatted blind whose slats are easy to produce and have a high bending stiffness and in which functional elements such as pivot axes can be very easily attached to the slats.

This object is achieved according to the invention in that each lamella has a first groove extending over its entire length, which receives on both end faces of the lamella each a pivot axis forming the axial pin.

Slats with these features can be very easily and inexpensively produced, for example by extrusion. By receiving the axle pins in grooves no holes in the blade are required and also eliminates the usual methods for attaching the axle pins on the fins such as welding, soldering, gluing or clamps.

According to one embodiment of the invention according to claim 2, the first groove is arranged adjacent to one of the longitudinal edges of the lamella. As a result, the pivot axis of the slats is close to the edge of the slats, so that the relevant longitudinal edge during pivoting at most by a very small amount displaced horizontally. Such a slatted blind can for example be attached closer to a window than a slatted blind according to the prior art, in which the pivot axes of the slats are located approximately in the middle thereof.

According to a further embodiment according to claim 3, the opening of the first groove is directed towards the longitudinal edge of the lamella on which it is arranged. Preferably, as described in claim 4, the opening of the first groove inclined to the plane of the blade by about 45 °. In this way, the first groove is suitable to record in addition to the axle pins also holding elements for traction means.

After the training according to claim 5, the axle pins are pressed into the first groove. A press connection is very simple and inexpensive to manufacture. According to another embodiment according to claim 6, at least one retaining element for the distance keeping and / or pivoting of the blade serving traction means is added in the first groove between the end faces of the blade. Thus eliminates the need to attach, for example, holes in the blade for the attachment of the holding elements on the lamella.

Also advantageous is a development according to claim 7, according to which adjacent to the second of the two longitudinal edges, a second groove is arranged, whose opening is directed to the second longitudinal edge of the lamella and inclined to the plane of the lamella by about 45 ° and in the second groove is received between the end faces of the blade at least one holding element for the distance attitude and / or pivoting of the blade serving traction means. The attachment of the holding elements to the slats can be done very easily.

In the embodiment according to claim 8, a third groove is arranged on one of the two longitudinal edges of the lamella, in which a protective profile covering a region of the surface of the lamella is received. The latter is preferably made of a relatively soft plastic and prevents the direct contact of the slats with each other and so among other things, the rattling of the slatted blinds in wind.

A further preferred embodiment according to claim 9 provides that in each case between two slats an insect protection strip of a flexible, translucent and preferably air-permeable material is arranged. Thus, the task of the slat blind can be very easily extended to prevent the ingress of insects in rooms shaded by the lamella sturgeons.

According to the further embodiment according to claim 10, a fourth groove and a fifth groove is disposed on each blade, the openings of the fourth groove and the fifth groove are arranged on opposite surfaces of the blade, the fourth groove and the fifth groove are undercut and in the fourth groove and in the fifth groove is held in each case an insect repellent strip with a reinforced edge. Through this training, the insect repellent strips can be easily connected by pulling into the grooves with the slats. According to an embodiment as described in claim 11, the fourth groove and the fifth groove are arranged adjacent to one of the longitudinal edges of the lamella. As a result, the insect protection strips mounted in these grooves come to lie in the immediate vicinity of the pivot axis and thus shift at the pivoting movements of the slats at most slightly in a direction perpendicular to the plane of the slatted blind.

The embodiment according to claim 12, according to which the openings of the fourth groove and the fifth groove are remote from the adjacent longitudinal edge and enclose an angle of less than 90 ° with the plane of the lamella, is advantageous because namely by the insect protection strips when shirring the slats are folded between the slats.

According to an advantageous embodiment according to claim 13, the first groove and / or the second groove and / or the third groove is undercut, so that these grooves can fulfill their task, namely the holding of an element introduced into them, particularly well.

However, an embodiment according to claim 14, according to which the axle pins are guided in a guide profile adjacent to the end faces of the slats, and brush guides are arranged on the guide profile, which are in contact with the insect protection strips in each pivot position of the slats. This measure ensures the tightness against the ingress of insects also laterally between the slats and the guide profiles.

According to claim 15, a closing profile is arranged adjacent to the bottom slat, which carries on its side facing away from the slats a sealing strip. This prevents insects from passing underneath the lamella gates.

Finally, it is provided according to another embodiment according to claim 16, that the lamellae consist of an extruded metal profile. Such a profile meets particularly well the requirements for simple and cost-effective manufacturability and high bending stiffness. An exemplary embodiment of the inventive slat blind is explained in more detail below with reference to the accompanying drawings. In the drawings shows:

Figure 1 shows a detail of the store in an elevated state in cross section.

FIG. 2 shows a section corresponding to FIG. 1 during the lowering of the store; FIG.

3 shows the store in the lowered state with closed lamellae;

4 shows the store in the lowered state with opened lamellae;

FIG. 5 is a detail of FIG. 4 in a perspective view; FIG.

6 shows a longitudinal edge of a lamella in side view;

Figure 7 shows another longitudinal edge of the blade, also in side view.

8 shows a holding element for traction means.

9 shows an insect protection strip;

10 is a sectional view of a portion of the slatted blind in plan view.

The slat blind consists of a number of slats 1, which are gathered together in the raised position of the store to a package, as shown in Fig. 1 can be seen. The package is carried by a lower end profile 2, which is guided vertically displaceable in laterally mounted in a window or Türleibung guide profiles 3 (Fig. 5 and 10). In the following description, it is assumed that in FIGS. 1 to 7, the outside and on the right, the inside of a building opening to be shuttered by the slat blind is on the left. Accordingly, each lamella 1 has an outer longitudinal edge 4 and an inner longitudinal edge 5. At each longitudinal edge 4, 5 holding elements 6 are arranged at intervals, with which outer traction means 7 and inner traction means 8 are connected. The Traction means determine the vertical distance between the slats 1 and also serve to pivot the slats. 1

A peculiarity of the illustrated embodiment of the inventive slat lenstore is that the pivot axis 9 (Fig. 10) of the slats 1 is not arranged as in the prior art, approximately in the middle between the longitudinal edges 4, 5, but in the immediate vicinity of inner longitudinal edge 5. With "pivot axis 9" is here the geometric axis meant by which the lamella 1 executes a pivoting movement. Physically, the lamella 1 has two coaxially arranged axle pins 10, which determine the pivot axis 9 and are connected to the lamella 1 in a manner to be described. To the

Closing the slat blind, the end profile 2 is lowered by not shown drive means in the guide sections 3. Due to the pivot axis 9 at the inner longitudinal edge 5 of the lamella 1, the inner traction means 8 may be fixed immovably at the upper end of the slat blind in the illustrated embodiment. The pivotal movement of the lamellae 1 can be accomplished exclusively by the outer traction means 7 in this exemplary embodiment. To control the outer traction means 7, there are two options in the illustrated embodiment, one of which will be explained with reference to FIG. During the lowering of the end profile 2, the outer traction means 7 remain loose and there is no tensile force exerted on them. The inner traction means 8 cause one blade 1 after the other lifts from the package to finally assume a vertical orientation, as shown in Fig. 3. In Fig. 2, the uppermost slat 1 is in an intermediate position in which it is inclined to the horizontal by about 45 °. As you can see, the outer longitudinal edge 4 of the lamella 1 slides over the surface of the underlying lamella. In order to prevent unwanted noise from being generated during this sliding movement and to prevent the lamellae 1 from being scratched and worn, a protective profile 12 preferably made of a relatively soft plastic material is arranged on the outer longitudinal edge 4.

The second possibility of controlling the outer traction means 7, which is not shown in the drawing, is that the outer traction means 7 are kept taut during lowering of the slat blind, so that the slats 1 maintain the horizontal position shown in FIG. 1 and are lifted from the stack one after the other, so that the lamellar blind can be transferred directly from the layer according to FIG. 1 into the layer according to FIG. 4. As shown particularly in FIGS. 1 and 5, each lamella merges from its outer longitudinal edge 4 into a main surface region 13 offset perpendicular to the lamellar plane, to which a recessed region 14 adjoins in the direction of the inner longitudinal edge 5. Fig. 3 shows the slat blind in the lowered and closed position. It can be clearly seen that the outer longitudinal edge 4 of each slat 1 is received in the recessed area 14 of the arranged above lamella 1 and seal the lamella in this way, with two adjacent lamellae each rest exclusively on the Schutzprofϊl 12 to each other. Thus, a seal against light, dust and insects is achieved and the generation of noise by direct contact of the slats is avoided when the store is moved, for example, by wind. Starting from the position shown in Fig. 3, the slats 1 are pivotable by the traction means 7 by 90 ° and in the position shown in Fig. 4 can be brought in the light between the slats can penetrate. The holding elements 6, by which the traction means 7, 8 are connected to the longitudinal edges 4, 5 of the slats 1, are arranged on the slats such that they have an angle of about 45 ° to the plane of the slats. In the present context, a "plane of the lamella" is understood to mean a geometric plane passing through the outer longitudinal edge 4 and the inner longitudinal edge 5. The advantage of this arrangement can be seen by comparing FIGS. 3 and 4. Both in the light-tight position of the lamellae according to FIG. 3 and in the maximum light-permeable layer according to FIG. 4, the angle between the holding elements 6 and a vertical is never less than 45 °. In addition, in the position according to FIG. 3, the holding elements 6 arranged on the outer longitudinal edge 4 each fit into the recessed area 14 of the lamella 1 which is adjacent below.

As particularly shown in FIGS. 5 to 7, each lamella 1 has a number of grooves extending over the entire length of the lamella 1 from one end face 15 to the other end face 16. A first groove 17 extends in the immediate vicinity of the inner longitudinal edge 5 parallel to this. In this first groove 17 are from both end faces 15, 16 of the slat 1 ago axial pins 10 are pressed, which form the pivot axis 9 of the slat 1. As shown in FIGS. 5 and 10, the axle pins 10 have a head 11 and are guided in the guide professional 1 3. The same groove 17 serves to receive the holding elements 6, which are pressed into the groove 17 at intervals along the lamella. Thus, the holding elements 6 have the desired, above-mentioned angle of about 45 ° with respect to the plane of the lamella, the opening of the groove 17 is inclined α1 according to the angle αl to the plane of the lamella. At the outer longitudinal edge 4, a second groove 18 is mounted, which also serves to receive holding elements 6. The opening of this second groove 18 is inclined to the plane of the lamella 1 by the angle αl8, which is also 45 °, wherein the opening of the second groove 18 in a direction opposite to that of the first groove 17 is opposite. Fig. 8 shows a perspective view of a holding element 6, which is preferably made of plastic in

Injection molding is made. An eyelet 27 serves to receive the traction means 7 or 8, wherein a slot 28 is connected for insertion of the traction means in the eyelet 27 with the latter. The holding element 6 is inserted into the first groove 17, wherein it is supported by feet 29 in the groove 17 and is held by snap-lugs 30 in this. A third groove 19 is arranged in the immediate vicinity of the second groove 18 on the outer longitudinal edge 4 of the lamella 1. This third groove has the task of receiving the protective profile 12 which covers the lamella in that area in which it can come into contact with the adjacent lamella. The orientation of their opening is less important because the protective profile can be designed accordingly.

Another peculiarity of the illustrated embodiment is that between two slats 1, an insect protection strip 22 is arranged, through which the penetration of insects is prevented by a closed by the slatted store opening. The insect repellent strip 22 is made of a material which is permeable to light, but not to insects. Such a material may be a fine mesh, nonwoven or film, the latter preferably being perforated to give it some air permeability. One of these insect protection strips 22 is shown in FIG. 9 in an enlarged scale relative to FIGS. 1 to 4. The width of the insect protection strip 22 is slightly larger than the distance between two lamellae in the lowered state of the lamellar store and the insect protection strip 22 has at both its longitudinal edges a thickening the longitudinal edge element, such as a sewn or welded cord 23. The seam or weld is designated 24. The length of the insect protection strip 22 corresponds approximately to the length of the lamellae 1. To attach the insect protection strips 22 on each two adjacent lamellae 1 further grooves are present in each lamella, namely a fourth groove 20, the horizontally aligned lamella 1 at the Top is arranged and a fifth groove 21 which is arranged at horizontally oriented blade 1 at the bottom. The fourth groove 20 and the fifth groove 21 are arranged in the vicinity of the inner longitudinal edge 5 of the lamella 1 and their openings are facing away from the inner longitudinal edge 5, wherein their opening in the example shown to the fin plane have an angle α.20 and α21 of 45 °.

All of the grooves 17 to 21 have a round, preferably approximately circular cross-section in their base and are undercut, that is, their width Where their opening near the surface is less than their width WQ near the bottom, as shown particularly clearly in FIGS. 6 and 7 shows.

In order to fasten the insect protection strips 22 to the lamellae 1, the reinforced edges of the insect protection strips 22 are drawn from an end face 15 or 16 into the groove 20 or 21. The particular arrangement and orientation of the fourth groove 20 and the fifth groove 21, which receive the insect protection strips 22, causes the insect protection strip 22 with closed lamellar blinds and horizontally oriented lamellae, curved away from the inner longitudinal edges 5, as clearly from Fig. 4 before goes. As a result, the insect protection strips are folded when opening the slat blind 1 between the slats 1, as can be seen particularly clearly in Fig. 2. Thus, the insect protection strips are included with the slats open between the slats 1 and protected against contamination and damage. In addition, the whole thing looks better than if the insect screen strips were hanging out between the slats. The angles α20 and α.21 need not necessarily be 45 °, but only have to be less than 90 °. Preferably, the angles α20 and α21 are significantly smaller than 90 °, preferably even smaller than 45 °. The lowermost insect protection strip 22 is connected in the same way with the Abschlusspro fil 2, as can be seen in Figs. 1 to 4 and the uppermost strip is in the same way with a lamellar up the top, not shown element, For example, an upper end profile or a housing for receiving the drive of the slatted blind connected.

In order to prevent insects from penetrating on the end faces 15, 16 of the lamellae 1 between the insect protection strips 22 and the guide profiles 3, the guide profiles 3 in the area of the insect protection strips 22 are provided with brush seals 25 which, as shown in FIG 10 can be recorded in the guide profiles 3. It is particularly advantageous if the insect protection strips 22 are arranged close to the pivot axis 9, because in this case the insect protection strips 22 during pivoting the lamellae 1 only slightly shift in a direction perpendicular to the plane of the lamellar store, so that the lateral brush seals 25 can be kept relatively narrow and still guaranteed in any pivotal position of the lamellae the contact of the insects strips 22 with the brush seals 25. Therefore, the locations at which the insect protection strips 22 are connected to the lamellae 1, ie the fourth and fifth grooves 20 and 21, are preferably arranged close to the pivot axis 9. In order to prevent the insects from passing underneath the end profile 2, the latter carries a sealing strip 26, which is preferably designed as a further brush seal and can be seen in FIGS. 1 to 4.

The described and illustrated embodiment of the slats 1 allows their production of metal, for example light metal, preferably of an aluminum alloy, in the extrusion process. It is also conceivable to produce the lamellae 1 from a plastic by extrusion. Although both methods would allow the incorporation of longitudinal cavities in a profile, for example, for receiving the axle pins 10, but relatively complicated tools would be necessary and the profile would be correspondingly expensive. Characterized in that according to the invention instead of cavities outwardly open grooves are provided, the production of the slats 1 is much easier and cheaper. In addition, lamellae from a profile have the advantage over the lamellae of bent, thin sheet metal known from the prior art that they withstand much better winds and even break-in attempts. Finally, metal profiles are particularly suitable for decorative and protective surface treatments.

10 additionally shows a lateral covering profile 31, which is received in a groove 32 provided on the guide profile 3, bears against the inside of the closed lamellar store and thus prevents the penetration of light. 33 denotes a guide pin arranged on the lower end profile 2, which slides in the lateral guide profile 3 during the raising and lowering of the lamella blinds and thus ensures parallel guidance of the lower end profile 2. Finally, the reference numeral 34 designates an adjusting mechanism with which the guide profile 3 can be adjusted in a window or door revival, in order to adapt the lateral play between the end faces 15, 16 of the slats 1 and the lateral guide profile 3. REFERENCE NUMBERS

1 lamella

2 end profile

3 leadership profile

4 outer longitudinal edge

5 inner longitudinal edge

6 holding element

7 external traction means

8 internal traction devices

9 pivot axis

10 axle pin

11 Head of the axle pin

12 protection profile

13 main surface area

14 recessed area

15 front side

16 front side

17 first groove

18 second groove

19 third groove

20 fourth groove

21 fifth groove

22 insect repellent stripes

23 string

24 seam

25 brush seals on the side

26 sealing strips

27 eyelet

28 slot

29 feet

30 snap nose

31 Cover profile

32 groove

33 guide pins

34 Adjusting mechanism W ₀ Width of groove opening W _G Width at the bottom of the groove

Claims

Patent claims

1. lamellar blind with spaced apart in the lowered state, about an axis (9) pivotable lamellae (1), which are gathered when opening the lamellar store, each lamella (1) by two substantially parallel to the pivot axis (9) extending longitudinal edges (4th , 5) and two substantially perpendicular to the longitudinal edges (4, 5) arranged end faces (15, 16) is limited, characterized in that each lamella (1) has a over its entire length extending first groove (17) which on each of the end faces (15, 16) of the lamella (1) each receives a pivot pin (9) forming the pivot pin (10).

2. slat blind according to claim 1, characterized in that the first groove (17) adjacent to one (5) of the longitudinal edges of the slat (1) is arranged.

3. slatted blind according to claim 2, characterized in that the opening of the first groove (17) is directed towards the longitudinal edge (5) of the lamella (1), on which it is arranged.

4. Slat blind according to claim 3, characterized in that the opening of the first groove (17) to the plane of the slat (1) is inclined by about 45 °.

5. lamellar blind according to one of the preceding claims, characterized in that the axle pins (10) in the first groove (17) are pressed.

6. lamellar blind according to one of the preceding claims, characterized in that in the first groove (17) between the end faces (15, 16) of the lamella (1) at least one holding element (6) for the distance attitude and / or pivoting of the lamella (1 ) serving traction means (7, 8) is received.

7. slat blind according to claims 1 and 2, characterized in that adjacent to the second (4) of the two longitudinal edges, a second groove (18) is arranged, whose opening is directed to the second longitudinal edge (4) of the lamella (1) and to the plane of the lamella (1) is inclined by about 45 ° and that in the second groove (18) between the end faces (15, 16) of the lamella (1) at least one holding element (6) for the distance attitude and / or pivoting of the lamella (1) serving traction means (7, 8) is received.

8. lamellar blind according to one of the preceding claims, characterized in that at one (4) of the two longitudinal edges of the lamella (1) a third groove (19) is arranged, in which a an area of the surface of the lamella (1) covering protective profile ( 12) is recorded.

9. slat blind according to one of the preceding claims, characterized in that in each case between two slats (1) an insect protection strip (22) made of a flexible, translucent and preferably air-permeable material is arranged.

10. slat blind according to claim 9, characterized in that on each slat (1) a fourth groove (20) and a fifth groove (21) is arranged, that the openings of the fourth groove (20) and the fifth groove (21) are arranged opposite surfaces of the lamella (1), that the fourth groove (20) and the fifth groove (21) are undercut and in that in the fourth groove (20) and in the fifth groove (21) in each case an insect protection strip ( 22) is held with a reinforced edge (23).

11. slat blind according to claim 10, characterized in that the fourth groove (20) and the fifth groove (21) adjacent to a (5) of the longitudinal edges of the slat (1) are arranged.

12. slat blind according to claim 11, characterized in that the openings of the fourth groove (20) and the fifth groove (21) facing away from the adjacent longitudinal edge (5) and with the plane of the slat (1) an angle (α20, α21) of less than 90 °.

13. lamellar blind according to one of the preceding claims, characterized in that the first groove (17) and / or the second groove (18) and / or the third groove (19) is undercut.

14. lamellar blind according to one of claims 9 to 13, characterized in that the axle pins (10) in a front sides of the slats adjacent guide profile (3) are guided and that the guide profile (3) brush seals (26) are arranged, which in each Swivel position of the slats (1) with the insect protection strips (22) are in contact.

15. slat blind according to one of the preceding claims, characterized in that adjacent to the bottom slat (1) a closing profile (2) is arranged, which carries on its side facing away from the slats (1) side a sealing strip (26).

16. lamellar blind according to one of the preceding claims, characterized in that the lamellae (1) consist of an extruded metal profile.