WO2019040962A1

WO2019040962A1 - Umbrella

Info

Publication number: WO2019040962A1
Application number: PCT/AT2018/060196
Authority: WO
Inventors: Robert Roithmayr
Original assignee: Formfinder Software Gmbh
Priority date: 2017-09-04
Filing date: 2018-09-03
Publication date: 2019-03-07
Also published as: EP3703529B1; AT520372B1; AT520372A1; EP3703529A1; EP3703529C0

Abstract

The invention relates to an umbrella having the following components: - multiple movable struts (4) extending longitudinally; - a central strut support (8), to which a first longitudinal end (6) of the struts (4) is pivotally secured; - a covering (5) which is coupled to the struts (4) at an outer fastening point (10) of said struts. The covering (5) comprises at least one membrane (15) and multiple segments (16), the membrane (15) being flexible in comparison with the segments (16). At least some of the segments (16) are coupled to the struts (4) at respective outer fastening points (10), or at least some of the segments (16) are in the form of struts (4).

Description

umbrella

The invention relates to a screen, and a screen assembly.

Various screens are known from DE2628738Al, DE4303679A1, DE20210082Ul, EP1820416A1 and US6371140B1.

The screens known from these documents have the disadvantage that their clothing has only a low stability. Especially with large umbrellas and locations with a lot of wind, this often causes the covering of the umbrellas to flutter in the wind and produce loud noises.

The object of the present invention was to overcome the disadvantages of the prior art and to provide a screen which can withstand even stronger gusts of wind.

This object is achieved by a screen according to the claims.

According to the invention, a screen is formed which has the following components:

- Several movable struts, which have an elongated extent;

- A central strut holder on which a first longitudinal end of the struts is pivotally mounted;

- A string, which is coupled to an outer suspension point of the struts with these.

The fabric comprises at least one membrane and a plurality of fins, wherein the membrane is designed to be flexible compared to the fins, wherein at least some of the fins are each coupled to the outer suspension point with the struts or wherein at least some of the fins are formed as struts. An advantage of the inventive design of the screen is that the umbrella can be given a high stability by the use of a fabric comprising a flexible membrane and a comparatively rigid blade. Especially when installing the umbrella in a place with a lot of wind, this brings advantages. In a first exemplary embodiment it can be provided that a single membrane is formed, with which a plurality of fins are connected. Alternatively, it can be provided that a plurality of membranes are formed, wherein in each case between two adjacent lamellae, a membrane is arranged.

Furthermore, it may be expedient if the lamellae, starting from the outer suspension point, have a longitudinal extension, wherein a connection between the diaphragm and the lamella is formed at least over partial regions of the longitudinal extension of the lamella. The advantage here is that by this measure the membrane can have a good connection with the lamella.

Furthermore, it can be provided that at least some of the lamellae are coupled at a central longitudinal end with a common lamella holder. The advantage here is that the blades can be moved by this measure by means of the common blade holder in the vertical direction.

In addition, it can be provided that a central support element is formed, wherein the lamella holder is slidably received on the support element and wherein the fabric is arranged on the underside of the struts. Due to the slidable arrangement of the slat holder and support member, the screen can be moved between a clamped state and a closed state. Also advantageous is an expression, according to which it can be provided that the central support element is designed as a tube and serves to dissipate the collected in the fabric rainwater. The advantage here is that the fabric can be funnel-shaped by this measure, the rainwater flows to the surface of the fabric towards the center.

According to a development, it is possible that the membrane and the lamella are interconnected by means of an adhesive. The advantage here is that such adhesive bonding tion is simple and can also have high strengths. In addition, by means of such an adhesive bond, a tight connection between the blade and the membrane can be made. Alternatively, it can be provided that the membrane and the lamella are connected to each other by means of a weld.

In a further alternative it can be provided that the connection between the membrane and the lamella is realized by a seam in which one or more threads are repeatedly passed through the membrane, wherein the threads are entangled with each other or with the membrane.

In yet another embodiment, it is also conceivable that the membrane is connected by means of a piping with the lamella. The blade may in this case be designed to receive the welt. In particular, it can be provided that a piping is coupled to the membrane by means of a welded connection. The advantage here is that such Keder- connection is easy to produce.

In yet another embodiment variant, it can be provided that the lamella is formed from carbon fibers and that the carbon fiber is interwoven with the membrane at the edge of the lamella.

Furthermore, it may be expedient for each second of the lamellae to be coupled to the central strut holder and for each second of the lamellae to be coupled to the lamella holder, with the central strut holder being arranged in an upper receiving plane and the lamella holder in the clamped state of the shield is arranged in a lower receiving plane, wherein the upper receiving plane and the lower receiving plane are arranged at a distance from each other. The advantage here is that a contoured surface of the fabric can be produced by this measure, whereby the fabric additional support can be awarded. In addition, it can be provided that the slats have a bulbous curvature with respect to their longitudinal extent and / or have a bulbous curvature with respect to their width. The advantage here is that the lamellae may have a higher rigidity by this measure than would be the case with a flat lamella of the trap.

Furthermore, it can be provided that the lamellae have an inner bias and, when an acting force on the lamellae is exceeded, the bulge of the curvature of the lamellae with respect to their longitudinal extension and / or the bulge of the curvature of the lamellae with respect to their width can be reversed into the opposite side. The advantage here is that can form a trumpet-shaped or funnel-shaped fabric by this measure the plurality of slats in the clamped state of the screen and the slats can form a protective cover in the closed state of the screen.

According to a particular embodiment, it is possible that at least one traction means, in particular an elastic band, is coupled to the membrane, which is one to the center of the

Umbrella directed pulling force on the membrane applies. As a result, when transferring the shield from the clamped state into the closed state, the membrane can be pulled towards the center so that the individual laminations can form a protective cover for the membrane and the membrane is not clamped between the individual laminas.

According to an advantageous development can be provided that the elastic band between the membrane and the central support tube is stretched. In particular, it may be advantageous if the slats in the closed state of

Umbrella form a protective cover. By this measure, the membrane can be protected by means of the lamellae or can be achieved in that in the closed state of the screen, the windage surface is as low as possible and the screen can not be damaged even in strong wind events.

Furthermore, it can be provided that a total of six fins are formed. In addition, it can be provided that the number of slats is the same size as the number of struts. By this measure, each strut can be associated with a lamella, whereby the screen can be given increased strength. Also advantageous is an expression according to which it can be provided that the membrane is connected to the longitudinal extent of the lamella over a length of between 70% and 100%, in particular between 90% and 100%. The advantage here is that by this measure a good tightness between the membrane and lamella can be achieved or that by this measure the fabric can form a closed surface.

According to a development, it is possible that the fabric is funnel-shaped in the clamped state of the screen, wherein the fabric has a gradient towards the center. The advantage here is that by this measure, the rainwater striking the screen is guided to the center of the screen and can be derived there centrally. This can avoid that the rainwater runs down unchecked in the edge region of the screen. Thus, it is possible to set up several umbrellas next to each other to cover a larger area, without dripping rainwater from the edge of the umbrellas on the ground. Furthermore, it may be expedient if, in the unfolded state of the umbrella, all lamellas are arranged at their outer longitudinal end approximately in one plane and the central longitudinal end of each second lamella is arranged on an upper receiving plane and the central longitudinal ends of the remaining lamellae are arranged on a lower receiving plane are. By this measure, the screen can be given increased stability. In particular, the membrane can be well stretched between the individual lamellae, so that the membrane flaps as little as possible in the wind in the clamped state of the screen.

In addition, it can be provided that the lamella has a smaller width at the central longitudinal end and at the outer longitudinal end than at its longitudinal center. The advantage here is that a slim shape of the lamella can be achieved by this measure, so that it can act well as a protective cover in the closed state of the screen.

In particular, it can be provided that the lamella is formed leaf-shaped. In addition, it can be provided that each of the movable struts is coupled at a distance from the first longitudinal end with a strut support. Through the strut support, the struts can be held in position. In particular, it can be provided that the strut support is coupled in each case at its first longitudinal end with the movable strut and is coupled at its second longitudinal end with the central support tube.

The term "membrane" refers to thin, flat materials which are flexibly deformable and can only be stressed statically by tension, but not by pressure. Membranes can have different structures, in particular they can be films or textiles which can be coated or uncoated. Films used as membrane for the shield construction can be formed, for example, from a thin plastic layer, in particular a thermoplastic, preferably polyethylene. For example, textiles used as a membrane for umbrella construction may include woven, knitted or other spun textile materials, e.g. Polyester fabric with PVC coating, glass fiber fabric with PTFE coating, PVC foil, ETFE film or the like. The membrane can also be referred to as a cloth. The thickness of the membrane can be between 0.001 mm and 2 mm, in particular between 0.05 mm and 1 mm. A lamella is understood to mean an element having a longitudinal extent, a width and a thickness, the width being smaller than the longitudinal extent and the thickness being less than 15 mm. The lamella has a higher rigidity than the membrane and in particular can be loaded under pressure. In particular, it can be provided that the thickness of the lamella is between 0.5 mm and 10 mm, preferably between 2 mm and 6 mm. The blade may be formed of a metallic material such as a steel sheet or an aluminum sheet. In addition, it is also conceivable that the lamella is formed from a plastic. In yet another embodiment variant, it is also conceivable that the lamella is formed from a composite material, such as a fiber composite material, in particular a carbon fiber reinforced plastic.

Under tension refers to a flat structure, which has one or more membranes) and one or more lamella (s). The covering is from the struts worn on the screen and serves to cover the underlying surface.

Furthermore, it is also conceivable that the membrane and the blade made of the same material, such as a plastic, in particular polyethylene is formed and the different mechanical properties are achieved only by the different material thickness. In particular, it can be provided that the lamella has a greater material thickness than the membrane. The width of the lamella can vary over its longitudinal extent. In particular, it can be provided that the width of the lamella is between 30 mm and 500 mm, preferably between 50 mm and 150 mm. The length of the lamella can be between 500 mm and 4,000 mm, in particular between 1,000 mm and 3,000 mm, preferably between 1,500 mm and 2,500 mm.

Furthermore, it can be provided that the lamellae overlap in the closed state of the screen such that they form an inner shell and an outer shell, wherein the lamellae are alternately associated with the inner shell and the outer shell. Furthermore, it can be provided that a central cover element is formed, which projects beyond the outer longitudinal end of the slats seen in the closed state of the screen in plan view of the screen.

In other words, the invention is a foldable trich- ter screen with an even number of spokes and struts, which are arranged around a central mast in the pattern of a reverse umbrella and control the folding of the screen, the spokes on the one end to stretch the material of the sectors in the unfolded state and flanged at the other end to a movable ring about the mast via a joint and the struts are also flanged at one end hinged to a second ring around the mast, but at the other end with a joint are connected to the spoke. Furthermore, it may be useful if between the individual sectors of the screen, consisting of foldable material with vanishing bending stiffness, a rigid element called lamella is inserted, which is firmly connected to the material of the sectors and takes over the role of the spokes.

Furthermore, it can be provided that these lamellae are also formed of rigid spokes, against which a flexible frame is clamped.

In addition, it can be provided that these lamellae in the unfolded state, the material of the sectors in the circumferential direction of the screen and in the tangential direction spread to produce the stabilizing voltage.

Also advantageous is an expression according to which it can be provided that these lamellas wrap themselves around the material of the sectors during the folding of the umbrella, in order to protect it against environmental influences such as rain, wind, storm and UV radiation and, in particular, that Fluttering to prevent the tensioned material in the folded state.

According to a development, it is possible that these lamellae overlap in the folded state such that they form an inner and an outer shell, with alternating inner and outer lamellae and wherein neither the inner nor the outer shell are individually completed completely

Furthermore, it can be provided that the contact zone between the inner and outer shell is provided by a sealing strip made of a suitable material and that the interior is thus sealed against precipitation water.

In addition, it may be provided that the inner shell is formed by the fact that the lamellae of the inner layer are retracted during the folding by the geometry of the spreading process with a slight projection in front of the lamellae of the outer layer, so as to form the inner shell, which is then sealed by the slats of the outer shell. Furthermore, it can be provided that the lamellae of the inner shell can also have their own drive in order to ensure the overlapping.

According to a particular embodiment, it is possible that the formation of the slats can also be done by the fact that a strip of flexible material can be applied to the closed membrane material.

According to an advantageous development can be provided that the material of the sectors near the mast by the geometric difference between the inner and outer shell has an opening through which can be drained.

Furthermore, it can be provided that at the conclusion of the retraction process, the tip of the capsule is closed by a slipped pot, so that even at the top no water can penetrate.

In addition, it can be provided that the slipping of the pot is controlled by a mechanical or hydraulic in the center at the top of the central mast.

In a first application, it can be provided that, for example, one or more umbrellas are placed on a level surface and used for shading or as rain protection. For example, the umbrellas can be set up in an outdoor dining area. It can be provided that the central support element of the screens has a longitudinal extent of up to 5m to keep the struts at a distance from the ground. The central support element can in this case be fixed in a stand, or connected directly to the ground, for example, be inserted into a corresponding hole.

The positional information used in the description above and below, as well as vertically and horizontally refer to this conventional installation of the screen.

In a further embodiment, it can also be provided that the screen is arranged, for example, on a roof surface and serves to shadow the roof surface. Again, the screen may have a conventional orientation, wherein the central support member may have a substantially smaller longitudinal extent than described above. In yet another exemplary embodiment, it can be provided that the screen serves for shadowing on a facade and in this case is set up tilted by 90 ° or attached to the facade.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

In each case, in a highly simplified, schematic representation:

1 shows the basic structure of a first embodiment of a screen in the clamped state.

Figure 2 is a view obliquely from above of the first embodiment of the screen in the clamped state.

3 is a view obliquely from below of the first embodiment of the screen in the clamped state. Fig. 4 is a sectional view obliquely from above of the first embodiment of the

Umbrella in the opened state;

Fig. S is a view obliquely from below of the first embodiment of the screen in the closed state;

Fig. 6 shows an arrangement of a plurality of screens in a plan view;

7 shows a cross section of a further embodiment of a lamella; 8 shows a longitudinal section of a further embodiment of a lamella;

9 shows a cross section of a first embodiment of a connection between the lamella and a membrane; 10 shows a cross section of a second exemplary embodiment of a connection between the lamella and a membrane; 11 shows a cross section of a third exemplary embodiment of a connection between the lamella and a membrane;

Fig. 12 shows a further exemplary embodiment of the structure of the Schirmkrone. By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, the disclosures contained throughout the description can be mutatis mutandis to the same parts with the same reference numerals or component names.

A first exemplary embodiment of a screen 1 is shown in different views in FIGS. 1 to 5, the same reference numerals and component designations being used again for the same parts as in the respective preceding figures. In order to avoid unnecessary repetition, reference is made to the detailed description or the reference numeral assignment in the respective preceding figures.

The description of the structure of the screen 1 is based on a synopsis of FIGS. 1 to 5.

1 shows a schematic representation of the basic structure of the screen 1. As can be seen from FIG. 1, it can be provided that the screen 1 has a central support element 2, which serves as a support for a screen crown 3. The screen crown 3 has a plurality of struts 4, which serve to receive a fabric 5. The struts 4 may have an elongated extension and be formed, for example, from a forming tube. In particular, it can be provided that the struts 4 are formed of a metallic material, such as aluminum or steel. The struts 4 extend between a first longitudinal end 6 and a second longitudinal end 7. In particular, it may be provided that the struts 4 are coupled to a strut holder 8 at the first longitudinal end 6. Preferably, it can be provided that the struts 4 are coupled by means of a rotary joint 9 with the strut holder 8. Thus, the strut 4 may be pivotally coupled to the strut holder 8. The swivel joint 9 may for example comprise a fork with two flat iron pieces, which are received on the strut holder 8 and between which the strut 4 can be used. Furthermore, by means of a bolt or a screw, which projects through both the strut 4 and this fork, a pivotal connection between the strut 4 and the strut holder 8 are made.

The fabric 5 is attached to an outer suspension point 10 on the struts 4. In particular, it can be provided that the outer suspension point 10 is formed on the second longitudinal end 7 of the strut 4. In another embodiment, not shown, it can also be provided that the strut 4 extends beyond the outer suspension point 10.

Furthermore, strut supports 11 are provided which each have a first longitudinal end 12 and a second longitudinal end 13. The strut supports 11 may also be formed in the form of forming tubes. Alternatively, it is also conceivable that the strut supports 11 are formed, for example, by a flat steel. The first longitudinal end 12 of the strut support 11 is pivotally coupled to the strut 4 and the second longitudinal end 13 of the strut support 11 is pivotally coupled to the central support member 2. In particular, it is provided here that the first longitudinal end 12 of the strut support 11 is arranged at a distance from the first longitudinal end 6 of the strut 4.

By this described structure of the Schirmkrone 3, in particular the struts 4 and the strut supports 11 can be achieved that pivoted with vertical displacement of the strut holder 8 relative to the central support member 2, the struts 4 between the clamped position of the screen 1 and the closed position of the screen 1 can be.

In the present exemplary embodiment, the strut supports 11 are arranged above the struts 4, whereby the struts 4 pivot at a vertical displacement of the strut holder 8 downwards at the second longitudinal end 7 upwards or inwards and thus in the closed position of the screen 1 are transferred. In a vertical displacement of the strut holder 8 up the struts 4 are pivoted at the second longitudinal end 7 downwards or outwards, whereby the screen 1 is converted into its clamped position.

In the present embodiment, a length 14 of all struts 4 is the same size. As a result, the second longitudinal ends 7 of the struts 4 seen in a plan view, arranged in a hexagon. 2, the fabric 5 comprises at least one membrane 15 and a plurality of fins 16. The fins 16 serve to give the fabric 5 a dimensional stability and to support the membrane 15. In a first embodiment it can be provided that the membrane 15 is designed as a continuous and closed structure and that the fins 16 are coupled to a lower surface or an upper surface of the membrane 15. In this case, the lamellae 16 may be glued to the membrane 15, for example. For example, it is also conceivable that the fins 16 are laminated to the membrane 15.

In a further exemplary embodiment, it is also conceivable that a plurality of membranes 15 are formed, which extend between the individual lamellae 16. The closed shape of the fabric 5 is achieved here by the interaction of the membrane 15 and the fins 16.

As can be seen from FIG. 2, it can be provided that the clothing 5 is arranged below the struts 4.

As can be seen particularly well from FIG. 3, the lamellae 16 have a longitudinal extent 17 and a width 18. The width 18 may vary over the longitudinal extent 17 of the blade 16. In particular, it can be provided that the lamella 16 converges at a central longitudinal end 19 and at an outer longitudinal end 20 pointed and therebetween a larger

Width 18 has. In other words, the lamella 16 may be sheet-shaped. The outer longitudinal ends 20 of the fins 16 may be attached to the outer suspension point 10 of the struts 4. In particular, it can be provided that a lamella 16 is attached to each of the outer suspension points 10. Thus, the number of fins 16 is equal to the number of struts. 4

As can be seen particularly well from FIGS. 3 and 4, it can be provided that every second of the lamellae 16 is designed as an upper lamella 21 and the lamellae 16 lying in between are designed as a lower lamella 22. In particular, it can be provided that the central longitudinal ends 19 of the upper lamella 21 are arranged in the clamped state of the screen 1 in an upper receiving plane 23 and that the central longitudinal ends 19 of the lower lamellae 22 are arranged in a lower receiving plane 24. The upper receiving plane 23 and the lower receiving plane 24 are in this case arranged in the clamped state of the screen 1 at a distance 25 from each other. The distance 25 may be between 5 mm and 1000 mm, in particular between 50 mm and 500 mm, preferably between 200 mm and 400 mm.

In particular, it can be provided that the central longitudinal ends 19 of the upper lamellae 21 are coupled to the strut holder 8 and the central longitudinal ends 19 of the lower lamella 22 are coupled to a lamella holder 26. In other words, the upper receiving plane 23 may be formed in the region of the strut holder 8 and the lower receiving plane 24 may be formed in the region of the lamella holder 26. If, for example, a total of six lamellae 16 are formed, then three of the lamellae 16 may be coupled to the lamella holder 26 at their central longitudinal end 19. As can be seen particularly well from FIG. 3, a three-dimensional shaping of the fabric 5 can be achieved by forming the upper lamellae 21 and the lower lamellae 22, as a result of which the fabric 5 can be given high stability. Due to the vertical offset of the central longitudinal ends 19 of two mutually adjacent lamellae 16, the intermediate membrane 15 in the clamped state of the screen 1 may have a high voltage.

The lamella holder 26 may also be arranged as the strut holder 8 in the vertical direction displaceable on the central support member 2. In particular, it may be provided the central support element 2 is designed in the form of a hollow profile, and both the strut holder 8 and the lamella holder 26 surround the central support element 2 and are guided so as to be veschiebbar on the central support element 2. In particular, it can be provided that the strut holder 8 and the lamella holder 26 are driven by different drive units in order to achieve a displacement of these two elements with different speeds or by a different amount. The strut holder 8 and the lamella holder 26 can be moved for example by means of an electric motor. In a Altematiwariante can also be provided that the strut holder 8 and the blade holder 26 are coupled to a transmission, by means of which the different displacement can be achieved.

Furthermore, it can be provided that the distance 25 between the fin holder 26 and the strut holder 8 is reduced when transferring the screen 1 from the clamped state in the closed state, so that in the closed state of the umbrella 1, the upper receiving plane 23 and the lower receiving plane 24 on the same Height or at least approximately at the same height. It can thereby be achieved that - as shown in FIG. 5 - the lamellae 16 uniformly surround the central support element 2 and thus form a protective jacket for the membrane 15.

In order to ensure that the lower receiving plane 23 and the upper receiving plane 24 are spaced apart in the clamped state of the screen 1 at a distance 25 and approximately in the closed state of the screen 1 are at the same level, it can be provided that during the Öffenvorganges or during the closing operation of the lamella holder 26 and the strut holder 8 are moved at a different speed. This can be achieved by means of a corresponding mechanism.

As can be seen from FIG. 2, it may optionally be provided that a traction means 27 is fastened between the membrane 15 and the central support element 2. The traction means 27 can serve to draw the diaphragm 15 inwards when closing the screen 1 and thus prevent the diaphragm 15 from becoming trapped between the individual discs 16 in the closed state of the screen 1. The traction means 27 may be formed in a preferred embodiment as an elastic band. Alternatively, it is also conceivable that Any type of band is used as traction means 27. In a preferred embodiment, it is provided that the traction means 27 is fixed centrally between two mutually adjacent fins 16 on the membrane 15. Fig. 6 shows an arrangement of a plurality of screens 1 in a plan view. As can be seen from Fig. 6, the individual screens 1 can be set up so that the underlying surface is completely covered. This is achieved in particular by the hexagonal shape of the screen 1 in the clamped state. Due to the special structure of the umbrellas 1 can also be achieved that individual centrally located umbrellas 1 can be braced on and off again regardless of the other umbrellas.

FIG. 7 shows a cross section of a further exemplary embodiment of a lamella 16. As can be seen from FIG. 7, it can be provided that the lamella 16 is designed to be bulbous over its width 18.

8 shows a longitudinal section of a further exemplary embodiment of a lamella 16. As can be seen from FIG. 8, it can be provided that the lamella 16 has a bulbous shape over its longitudinal extent 17. In a further exemplary embodiment, the lamella 16 can have both the bulbous shape according to FIG. 7 and the bulbous shape according to FIG. 8.

Various embodiments of a possible connection between the membrane 15 of the lamella 16 in cross-section are shown in FIGS. 9 to 11.

As can be seen from FIG. 9, it can be provided that the membrane 15 is designed to be continuous and that the lamella 16 is fastened to one side of the membrane 15. This can be done for example by gluing or by lamination or by another connection.

As can be seen from the embodiment of FIG. 10, it can be provided that the lamella 16 serves to connect two membranes 15 to one another. Here, the Membrane IS also be coupled by means of an adhesive bond or other connection to the blade 16.

As can be seen in the exemplary embodiment according to FIG. 11, it can also be provided that the membrane IS is coupled to the lamella 16 by means of a welt connection. In this case, a clamping element 28 may be provided which serves for fastening the membrane IS to the lamella 16.

Fig. 12 shows a further embodiment of the structure of the screen crown 3, wherein the struts 4 have been shown greatly reduced compared to the dimensioning of the support element. As can be seen from FIG. 12, provision can be made for a hold-down 29 to be arranged on the struts 4, by means of which the upper lamella 21 is deformed in the unfolded state of the umbrella 1. As a result, the upper fin 21 can be given increased stability. Furthermore, the attachment points of the blade 16 are shown on the strut 4. Shown is also a lower slat 22 which is arranged adjacent to the upper slat 21. In a screen with six blades 16 of the lower section to represent the lower blade 22 is thus offset by 60 ° to the upper section of the representation of the upper blade 21. In another exemplary embodiment, not shown, it may also be provided that each second strut 4 simultaneously serves as the upper lamella 21. In such an embodiment, the membrane 15 is attached directly to the strut 4.

The exemplary embodiments show possible embodiments, wherein it should be noted at this point that the invention is not restricted to the specifically illustrated embodiments of the same, but rather also various combinations of the individual variants are possible with each other and this possibility of variation due to the doctrine of technical action by representational Invention in the skill of those skilled in this technical field.

The scope of protection is determined by the claims. However, the description and drawings are to be considered to interpret the claims. Individual characteristics or characteristic features combinations of the shown and described different Ausführungsbei play can represent for themselves inventive solutions. The task underlying the independent inventive solutions can be taken from the description.

All statements of value ranges in the present description should be understood to include any and all sub-ranges thereof, e.g. is the statement 1 to 10 to be understood that all sub-areas, starting from the lower limit 1 and the upper limit 10 are included, ie. all sub-areas begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

For the sake of order, it should finally be pointed out that, for a better understanding of the structure, elements have been shown partly unevenly and / or enlarged and / or reduced in size.

Claims

P a n t a n s p r e c h e

1st screen (1) with

- A plurality of movable struts (4), which have an elongated extent;

- A central strut holder (8) on which a first longitudinal end (6) of the struts (4) is pivotally mounted;

- A string (5), which at an outer suspension point (10) of the struts (4) is coupled thereto,

characterized in that

the covering (5) comprises at least one membrane (15) and a plurality of lamellae (16), wherein the membrane (15) is designed to be flexible in comparison to the lamellae (16), wherein at least some of the lamellae (16) each at the outer suspension point (16) 10) are coupled to the struts (4) or wherein at least some of the lamellae (16) are designed as struts (4).

2. Screen according to claim 1, characterized in that the lamellae (16), starting from the outer suspension point (10) have a longitudinal extent (17), wherein at least over partial areas of the longitudinal extent (17) of the lamella (16) a connection between the membrane (16). 15) and the lamella (16) is formed.

3. Screen according to claim 1 or 2, characterized in that at least one of the lamellae (16) are coupled at a central longitudinal end (19) with a common lamella holder (26). 4. Screen according to claim 3, characterized in that a central support element

(2) is formed, wherein the lamella holder (26) is slidably received on the support element (2) and wherein the covering (5) on the underside of the struts (4) is arranged.

5. Screen according to claim 4, characterized in that the central support element (2) is designed as a tube and for the discharge of the in the covering (5) collected rainwater is used.

6. Screen according to one of the preceding claims, characterized in that the membrane (15) and the lamella (16) are interconnected by means of an adhesive.

7. Screen according to one of the preceding claims, characterized in that each second of the lamellae (16) is coupled to the central strut holder (8) and every other of the lamellae (16) is coupled to the lamella holder (26), wherein in the clamped state the shield (1) of the central strut holder (8) is arranged in an upper receiving plane (23) and the lamella holder (26) is arranged in a lower receiving plane (24), wherein the upper receiving plane (23) and the lower receiving plane (24) at a distance (25) are arranged to each other.

8. Screen according to one of the preceding claims, characterized in that the lamellae (16) with respect to the longitudinal extent (17) have a bulbous curvature and / or with respect to the width (18) have a bulbous curvature.

9. Screen according to claim 8, characterized in that the lamellae (16) have an inner bias and when an acting force on the lamellae is exceeded

(16) the bumpiness of the curvature of the lamellae (16) with respect to their longitudinal extent

(17) and / or the bumpiness of the curvature of the lamellae (16) with respect to the width (18) in the opposite side is reversible.

10. Screen according to one of the preceding claims, characterized in that at least one traction means (27), in particular an elastic band, is coupled to the membrane (15), which is directed towards the center of the screen (1) tensile force on the membrane (15 ).

11. Screen according to claim 10, characterized in that the elastic band (27) between the membrane (15) and the central support tube (2) is stretched. 12. Screen according to one of the preceding claims, characterized in that the slats (16) in the closed state of the screen (1) form a protective cover.

13. Screen according to one of the preceding claims, characterized in that a total of six blades (16) are formed.

14. Screen according to one of the preceding claims, characterized in that the number of lamellae (16) is equal to the number of struts (4).

15. Screen according to one of the preceding claims, characterized in that the membrane (15) over a length between 70% and 100%, in particular between 90% and 100%, of the longitudinal extension (17) of the lamella (16) is connected thereto ,

16. Screen according to one of the preceding claims, characterized in that the covering (5) in the clamped state of the screen (1) is funnel-shaped, wherein the fabric (5) towards the center has a slope. 17. Shade according to one of the preceding claims, characterized in that in the clamped state of the screen, all the slats (16) at its outer longitudinal end (20) are arranged approximately in one plane and the central longitudinal end (19) of each second slat (16). is arranged on an upper receiving plane (23) and the central longitudinal ends (19) of the remaining lamellae (16) are arranged on a lower receiving plane (24).

18. Screen according to one of the preceding claims, characterized in that the lamella (16) at the central longitudinal end (19) and at the outer longitudinal end (20) has a smaller width (18) than at its longitudinal center. 19. Screen according to one of the preceding claims, characterized in that overlap the slats (16) in the closed state of the screen (1) such that they form an inner shell and an outer shell, wherein the lamellae (16) alternately the inner Shell and the outer shell are assigned. Shade arrangement comprising at least two screens (1), which are positioned relative to each other so that the underlying surface is completely covered by the fabric (5) of the two screens (1), characterized in that the screens (1) according to one of the preceding Claims are formed.