EP3703529B1 - Umbrella - Google Patents

Description

The invention relates to a screen and a screen arrangement.

From the DE2628738A1 , the DE4303679A1 , the DE20210082U1 , the EP1820416A1 , the US6371140B1 , the WO 89/00225 A1 , the US 5,235,997 A , the DE 20 2014 002217 U1 and the DE 75 08 651 Various umbrellas are known to us.

The umbrellas known from these documents have the disadvantage that their covering has little stability. Especially with large umbrellas and locations with a lot of wind, this often results in the umbrella fabric flapping in the wind and creating loud noises.

The object of the present invention was to overcome the disadvantages of the prior art and to provide an umbrella that can withstand even stronger gusts of wind.

This task is solved by a screen according to the claims.

• mehrere bewegliche Streben, welche eine längliche Erstreckung aufweisen;
• ein zentraler Strebenhalter an welchem ein erstes Längsende der Streben schwenkbar befestigt ist;
• eine Bespannung, welche an einem äußeren Aufhängepunkt der Streben mit diesen gekoppelt ist.

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

• several movable struts which have an elongated extension;
• a central strut holder to which a first longitudinal end of the struts is pivotally attached;
• a covering which is coupled to the struts at an external suspension point.

The covering comprises at least one membrane and a plurality of slats, the membrane being designed to be flexible in comparison to the slats, with at least some of the slats being coupled to the struts at the outer suspension point or with at least some of the slats being designed as struts.

The advantage of the design of the umbrella according to the invention is that the use of a covering which has a flexible membrane and a stiff one in comparison Slat includes, the umbrella can be given a high level of stability. This is particularly advantageous when setting up the umbrella in a place with a lot of wind.

In a first exemplary embodiment, it can be provided that a single membrane is formed, to which several slats are connected.

Alternatively, it can be provided that several membranes are formed, with a membrane being arranged between two mutually adjacent slats.

Furthermore, it can be expedient if the slats have a longitudinal extension starting from the outer suspension point, with a connection between the membrane and the slat being formed at least over partial areas of the longitudinal extension of the slat. The advantage here is that this measure allows the membrane to have a good connection to the lamella.

Furthermore, it can be provided that at least some of the slats are coupled to a common slat holder at a central longitudinal end. The advantage here is that this measure allows the slats to be moved in the vertical direction using the common slat holder.

In addition, it can be provided that a central support element is formed, with the slat holder being displaceably received on the support element and with the covering being arranged on the underside of the struts. Due to the movable arrangement of the slat holder and support element, the umbrella can be moved between a stretched state and a closed state.

An embodiment is also advantageous, according to which it can be provided that the central support element is designed as a pipe and serves to drain away the rainwater collected in the covering. The advantage here is that the covering can be designed to be funnel-shaped due to this measure, with the rainwater flowing on the surface of the covering towards the center.

According to a further development, it is possible for the membrane and the lamella to be connected to one another using an adhesive. The advantage here is that such an adhesive connection is easy to produce and can also have high strength. In addition, such an adhesive connection can be used to create a tight connection between the lamella and the membrane.

Alternatively, it can be provided that the membrane and the lamella are connected to one another by means of a weld seam.

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, the threads being intertwined with one another or with the membrane.

In yet another embodiment, it is also conceivable that the membrane is connected to the lamella by means of a piping. The slat can be designed to accommodate the piping. 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 a 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 fibers are woven with the membrane at the edge of the lamella.

It is also provided that every second of the slats is coupled to the central strut holder and every second of the slats is coupled to the slat holder, with the central strut holder being arranged in an upper receiving level and the slat holder being arranged in a lower receiving level when the umbrella is in the stretched state , wherein the upper recording level and the lower recording level are arranged at a distance from one another. The advantage here is that this measure can create a contoured surface of the covering, which can give the covering additional support.

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 this measure allows the slats to have a higher rigidity than would be the case with a flat slat.

Furthermore, it can be provided that the slats have an internal prestress and when an acting force on the slats is exceeded, the bulge of the curvature of the slats with respect to their longitudinal extent and / or the bulge of the curvature of the slats with respect to their width can be turned over to the opposite side. The advantage here is that this measure allows the large number of slats to form a trumpet-shaped or funnel-shaped covering when the umbrella is in the open state and the slats can form a protective cover when the umbrella is closed.

According to a special embodiment, it is possible for at least one traction means, in particular an elastic band, to be coupled to the membrane, which applies a traction force directed towards the center of the screen to the membrane. This allows the membrane to be pulled towards the center when the umbrella is transferred from the opened state to the closed state, so that the individual slats can form a protective cover for the membrane and the membrane is not clamped between the individual slats.

According to an advantageous development, it can be provided that the elastic band is stretched between the membrane and the central support tube.

In particular, it can be advantageous if the slats form a protective cover when the umbrella is closed. With this measure, the membrane can be protected by means of the slats or can be achieved by ensuring that when the umbrella is closed, the area exposed to the wind is as small as possible and the umbrella can therefore not be damaged even in strong wind events.

Furthermore, it can be provided that a total of six slats are formed.

In addition, it can be provided that the number of slats is the same as the number of struts. This measure allows each strut to be assigned a slat, which can give the screen increased strength.

Also advantageous is an embodiment according to which it can be provided that the membrane is connected to the lamella over a length of between 70% and 100%, in particular between 90% and 100%, of the longitudinal extent of the lamella. The advantage here is that this measure can achieve a good seal between the membrane and the lamella and that the covering can form a closed surface thanks to this measure.

According to a further development, it is possible for the covering to be funnel-shaped when the umbrella is stretched, with the covering having a slope towards the center. The advantage here is that this measure directs the rainwater that hits the umbrella to the center of the umbrella and can be drained away centrally there. This can prevent rainwater from running down the edge of the umbrella in an uncontrolled manner. This makes it possible to set up several umbrellas next to each other to cover a larger area without rainwater dripping from the edge of the umbrella onto the ground.

Furthermore, it can be expedient if, when the screen is in the open state, all of the slats are arranged at their outer longitudinal end in approximately one plane and the central longitudinal end of every second slat is arranged on an upper receiving level and the central longitudinal ends of the remaining slats are arranged on a lower receiving level are. This measure can give the umbrella increased stability. In particular, the membrane can be easily stretched between the individual slats so that the membrane flutters as little as possible in the wind when the umbrella is stretched.

In addition, it can be provided that the slat 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 this measure can achieve a slim shape of the slat, so that it can function well as a protective cover when the umbrella is closed.

In particular, it can be provided that the lamella is designed in the shape of a leaf.

In addition, it can be provided that each of the movable struts is coupled to a strut support at a distance from the first longitudinal end. The strut support allows the struts to be held in their position. In particular, it can be provided that the strut support is coupled to the movable strut at its first longitudinal end and is coupled to the central support tube at its second longitudinal end.

A membrane refers to thin, flat materials that can be flexibly deformed and can only be statically subjected to tension, but not to compression. Membranes can have different properties; they can in particular be films or textiles that can be coated or uncoated. Films used as a membrane for shield construction can, for example, be formed from a thin plastic layer, in particular a thermoplastic, preferably polyethylene. Textiles used as a membrane for umbrella construction can be, for example, woven, knitted fabrics and other flat textile materials, e.g. polyester fabric with PVC coating, glass fiber fabric with PTFE coating, PVC foil, ETFE foil or the like. The membrane can also be called a cloth. The thickness of the membrane can be between 0.001mm and 2mm, in particular between 0.05mm and 1mm.

A lamella is an element with a longitudinal extent, a width and a thickness, where the width is smaller than the longitudinal extent and the thickness is less than 15mm. The lamella has a higher rigidity than the membrane and can also be able to withstand pressure. In particular, it can be provided that the thickness of the lamella is between 0.5mm and 10mm, preferably between 2mm and 6mm. The slat can be formed from a metallic material, such as a steel sheet or an aluminum sheet. In addition, it is also conceivable that the slat is made of 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.

Covering is a flat structure that has one or more membrane(s) and one or more lamella(s). The covering is from the struts of the umbrella and serves to cover the surface of the underlying surface.

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

Furthermore, it can be provided that the slats overlap one another in the closed state of the umbrella in such a way that they form an inner shell and an outer shell, with the slats being alternately assigned to the inner shell and the outer shell.

Furthermore, it can be provided that a central cover element is formed, which, when the umbrella is closed, projects beyond the outer longitudinal end of the slats when viewed from above on the umbrella.

In other words, the invention is a folding funnel umbrella with an even number of spokes and struts arranged around a central pole in the pattern of an inverted umbrella and which control the folding of the umbrella, with the spokes at one end tension the material of the sectors in the unfolded state and are flanged at the other end to a movable ring around the mast via a joint and the spreaders are also flanged at one end to a second ring around the mast, but at the other end with a joint are connected to the spoke.

Furthermore, it can be useful if a stiff element, called a lamella, is inserted between the individual sectors of the umbrella, made of foldable material with zero bending stiffness, which is firmly connected to the material of the sectors and takes over the task of the spokes.

Furthermore, it can be provided that these slats are also formed from rigid spokes, against which a flexible frame is braced.

In addition, it can be provided that these slats, when unfolded, spread the material of the sectors in the circumferential direction of the screen and in the tangential direction in order to generate the stabilizing tension.

An embodiment is also advantageous, according to which it can be provided that these slats wrap around the material of the sectors when the umbrella is folded in order to protect it against environmental influences such as rain, wind, storms and UV radiation and in particular to prevent the flapping of the to prevent tension-free material when folded.

According to a further development, it is possible for these slats to overlap in the folded state in such a way that they form an inner and an outer shell, with inner and outer slats alternating and with neither the inner nor the outer shell being individually completely closed

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

In addition, it can be provided that the inner shell is formed by the slats of the inner layer being retracted with an, albeit small, projection in front of the slats of the outer layer when folding due to the geometry of the spreading process, in order to thus form the inner shell, which is then sealed by the slats of the outer shell.

Furthermore, it can be provided that the slats of the inner shell can also have their own drive to ensure overlapping.

According to a special embodiment, it is possible that the slats can also be formed by applying a strip of flexible material to the closed membrane material.

According to an advantageous development, it can be provided that the material of the sectors near the mast has an opening through which drainage can be carried out due to the geometric difference between the inner and outer shell.

Furthermore, it can be provided that at the end of the retraction process, the tip of the capsule is closed by a pot placed over it, so that no water can penetrate into the tip either.

In addition, provision can be made for the pot to be put over by a mechanical or hydraulic control 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 set up on a flat surface and used for shading or as rain protection. For example, the umbrellas can be set up in a guest garden. It can be provided that the central support element of the umbrellas has a longitudinal extension of up to 5m in order to keep the struts at a distance from the ground. The central support element can be attached to a stand or connected directly to the ground, for example inserted into a corresponding hole.

The position information used in the description above and below, as well as vertically and horizontally, refers to this conventional positioning of the umbrella.

In a further exemplary embodiment it can also be provided that the screen is arranged, for example, on a roof surface and serves to shade the roof surface. Here too, the screen can have a conventional orientation, with the central support element having a significantly smaller longitudinal extent than described above.

In yet another exemplary embodiment, it can be provided that the screen serves for shading on a facade and is tilted by 90° or attached to the facade.

For a better understanding of the invention, it will be explained in more detail using the following figures.

Fig. 1

das Grundgerüst eines ersten Ausführungsbeispiels eines Schirms im aufgespannten Zustand;

Fig. 2

eine Ansicht von schräg oben auf das erste Ausführungsbeispiel des Schirms im aufgespannten Zustand;

Fig. 3

eine Ansicht von schräg unten auf das erste Ausführungsbeispiel des Schirms im aufgespannten Zustand;

Fig. 4

eine Schnittansicht von schräg oben auf das erste Ausführungsbeispiel des Schirms im aufgespannten Zustand;

Fig. 5

eine Ansicht von schräg unten auf das erste Ausführungsbeispiel des Schirms im geschlossenen Zustand;

Fig. 6

eine Anordnung von mehreren Schirmen in einer Draufsicht;

Fig. 7

einen Querschnitt eines weiteren Ausführungsbeispiels einer Lamelle;

Fig. 8

einen Längsschnitt eines weiteren Ausführungsbeispiels einer Lamelle;

Fig. 9

einen Querschnitt eines ersten Ausführungsbeispiels einer Verbindung zwischen der Lamelle und einer Membran;

Fig. 10

einen Querschnitt eines zweiten Ausführungsbeispiels einer Verbindung zwischen der Lamelle und einer Membran;

Fig. 11

einen Querschnitt eines dritten Ausführungsbeispiels einer Verbindung zwischen der Lamelle und einer Membran;

Fig. 12

ein weiteres Ausführungsbeispiel des Aufbau der Schirmkrone.

They show in a highly simplified, schematic representation:

Fig. 1

the basic structure of a first exemplary embodiment of a screen in the stretched state;

Fig. 2

a view obliquely from above of the first exemplary embodiment of the umbrella in the opened state;

Fig. 3

a view obliquely from below of the first exemplary embodiment of the umbrella in the stretched state;

Fig. 4

a sectional view obliquely from above of the first exemplary embodiment of the umbrella in the stretched state;

Fig. 5

a view obliquely from below of the first embodiment of the umbrella in the closed state;

Fig. 6

an arrangement of several screens in a top view;

Fig. 7

a cross section of a further embodiment of a lamella;

Fig. 8

a longitudinal section of a further embodiment of a lamella;

Fig. 9

a cross section of a first exemplary embodiment of a connection between the lamella and a membrane;

Fig. 10

a cross section of a second embodiment of a connection between the lamella and a membrane;

Fig. 11

a cross section of a third embodiment of a connection between the lamella and a membrane;

Fig. 12

another embodiment of the structure of the umbrella crown.

As an introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numbers or the same component names, whereby the disclosures contained in the entire description can be transferred analogously to the same parts with the same reference numbers or the same component names.

In the Figures 1 to 5 a first exemplary embodiment of a screen 1 is shown in different views, with the same reference numbers or component names being used for the same parts as in the previous figures. In order to avoid unnecessary repetitions, reference is made to the detailed description and the reference numerals in the previous figures. The description of the structure of the screen 1 is based on a synopsis of the Figures 1 to 5 .

Fig. 1 shows a schematic representation of the basic structure of the umbrella 1. How from Fig. 1 As can be seen, it can be provided that the umbrella 1 has a central support element 2, which serves as a support for an umbrella crown 3. The umbrella crown 3 has several struts 4, which serve to accommodate a covering 5. The struts 4 can have an elongated extension and can be formed, for example, from a shaped tube. In particular, it can be provided that the struts 4 are made 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 is provided that the struts 4 are coupled to a strut holder 8 at the first longitudinal end 6. It can preferably be provided that the struts 4 are coupled to the strut holder 8 by means of a swivel joint 9. The strut 4 can thus be pivotally coupled to the strut holder 8. The swivel joint 9 can, for example, comprise a fork with two pieces of flat iron, which are accommodated on the strut holder 8 and between which the strut 4 can be inserted. Furthermore, a pivotal connection between the strut 4 and the strut holder 8 can be established by means of a bolt or a screw which protrudes through both the strut 4 and this fork.

The covering 5 is attached to the struts 4 at an external suspension point 10. In particular, it can be provided that the outer suspension point 10 is formed at the second longitudinal end 7 of the strut 4. In a further exemplary 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, each of which has a first longitudinal end 12 and a second longitudinal end 13. The strut supports 11 can also be designed in the form of shaped tubes. Alternatively, it is also conceivable that the strut supports 11 are formed, for example, by flat steel. The first longitudinal end 12 of the strut support 11 is articulated to the strut 4 and the second longitudinal end 13 of the strut support 11 is articulated to the central support element 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.

Through this described structure of the umbrella crown 3, in particular the struts 4 and the strut supports 11, it can be achieved that when the strut holder 8 is vertically displaced relative to the central support element 2, the struts 4 are pivoted between the open position of the umbrella 1 and the closed position of the umbrella 1 can be.

In the present exemplary embodiment, the strut supports 11 are arranged above the struts 4, whereby when the strut holder 8 is vertically displaced downwards, the struts 4 pivot upwards or inwards at their second longitudinal end 7 and thus into the closed position of the umbrella 1. When the strut holder 8 is moved vertically upwards, the struts 4 are pivoted downwards or outwards at their second longitudinal end 7, as a result of which the umbrella 1 is transferred to its opened position.

In the present exemplary 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 top view, are arranged in a hexagon.

How out Fig. 2 As can be seen, the covering 5 comprises at least one membrane 15 and several slats 16. The slats 16 serve to give the covering 5 dimensional stability and to support the membrane 15. In a first exemplary embodiment, it can be provided that the membrane 15 is designed as a continuous and closed structure and that the slats 16 are coupled to a lower surface or an upper surface of the membrane 15. Here, the slats 16 can be glued onto the membrane 15, for example. For example, it is also conceivable that the slats 16 are laminated onto the membrane 15.

In a further exemplary embodiment, it is also conceivable that several membranes 15 are formed, which extend between the individual slats 16. The closed shape of the covering 5 is achieved through the interaction of the membrane 15 and the slats 16.

How out Fig. 2 As can be seen, it can be provided that the covering 5 is arranged below the struts 4.

How particularly good looking Fig. 3 As can be seen, the slats 16 have a longitudinal extent 17 and a width 18. The width 18 can vary over the longitudinal extent 17 of the slat 16. In particular, it can be provided that the lamella 16 converges to a point at a central longitudinal end 19 and at an outer longitudinal end 20 and has a larger width 18 in between. In other words, the lamella 16 can be designed in the shape of a leaf.

The outer longitudinal ends 20 of the slats 16 can be attached to the outer suspension point 10 of the struts 4. In particular, it can be provided that a slat 16 is attached to each of the outer suspension points 10. The number of slats 16 is therefore the same as the number of struts 4.

How particularly good from the Fig. 3 and 4 As can be seen, it can be provided that every second of the slats 16 is designed as an upper slat 21 and the slats 16 in between are designed as a lower slat 22. In this case it is then provided that the central longitudinal ends 19 of the upper slats 21 are arranged in an upper receiving level 23 in the stretched state of the screen 1 and that the central longitudinal ends 19 of the lower slats 22 are arranged in a lower receiving level 24. The upper receiving level 23 and the lower receiving level 24 are arranged at a distance 25 from one another in the stretched state of the screen 1. The distance 25 can be between 5 mm and 1000 mm, in particular between 50 mm and 500 mm, preferably between 200 mm and 400 mm.

In addition, in this case it is then provided that the central longitudinal ends 19 of the upper slats 21 are coupled to the strut holder 8 and the central longitudinal ends 19 of the lower slat 22 are coupled to a slat holder 26. In other words, the upper receiving level 23 is formed in the area of the strut holder 8 and the lower receiving level 24 is formed in the area of the slat holder 26. For example, if a total of six slats 16 are formed, then three of the slats 16 can be coupled to the slat holder 26 at their central longitudinal end 19.

How particularly good looking Fig. 3 As can be seen, a three-dimensional shape of the covering 5 can be achieved by designing the upper slats 21 and the lower slats 22, whereby the covering 5 can be given a high level of stability. Due to the vertical offset of the central longitudinal ends 19 of two mutually adjacent slats 16, the membrane 15 in between can have a high tension when the screen 1 is stretched.

The slat holder 26, like the strut holder 8, can also be arranged on the central support element 2 so that it can be displaced in the vertical direction. In particular, it can be provided that the central support element 2 is designed in the form of a hollow profile, and both the strut holder 8 and the slat holder 26 surround the central support element 2 and are slidably guided on the central support element 2.

In particular, it can be provided that the strut holder 8 and the slat holder 26 are driven by different drive units in order to achieve a displacement of these two elements at different speeds or by a different amount. The strut holder 8 and the slat holder 26 can be moved, for example, by means of an electric motor. In an alternative variant, it can also be provided that the strut holder 8 and the slat holder 26 are coupled to a gear, by means of which the different displacement can be achieved.

Furthermore, it can be provided that when the umbrella 1 is transferred from the opened state to the closed state, the distance 25 between the slat holder 26 and the strut holder 8 is reduced, so that when the umbrella 1 is closed, the upper receiving level 23 and the lower receiving level 24 are on the same level height or at least approximately at the same height. This can achieve that - as in Fig. 5 shown - the slats 16 evenly surround the central support element 2 and thus form a protective jacket for the membrane 15.

In order to ensure that the lower receiving level 23 and the upper receiving level 24 are spaced apart from one another at a distance of 25 in the opened state of the umbrella 1 and are approximately at the same height in the closed state of the umbrella 1, it can be provided that during the opening process or during During the closing process, the slat holder 26 and the strut holder 8 are moved at a different speed. This can be achieved using an appropriate mechanism.

How out Fig. 2 As can be seen, it can 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 pull the membrane 15 inwards when the umbrella 1 is closed and thus prevent the membrane 15 from being clamped between the individual slats 16 when the umbrella 1 is closed. In a preferred embodiment, the traction means 27 can be designed 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 attached centrally to the membrane 15 between two mutually adjacent slats 16.

Fig. 6 shows an arrangement of several screens 1 in a top view. How out Fig. 6 As can be seen, the individual umbrellas 1 can be set up in such a way that the area underneath is completely covered. This is achieved in particular by the hexagonal shape of the screen 1 when stretched. Due to the special structure of the umbrellas 1, it can also be achieved that individual centrally located umbrellas 1 can be opened and tensioned again independently of the other umbrellas.

Fig. 7 shows a cross section of a further exemplary embodiment of a lamella 16. As shown Fig. 7 As can be seen, it can be provided that the slat 16 is bulbous over its width 18.

Fig. 8 shows a longitudinal section of a further exemplary embodiment of a slat 16. As shown Fig. 8 As can be seen, 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 as well as the bulbous shape Fig. 8 exhibit.

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

How out Fig. 9 As can be seen, it can be provided that the membrane 15 is continuous and that the lamella 16 is attached to one side of the membrane 15. This can be done, for example, by gluing or by laminating or by some other connection.

As in the exemplary embodiment Fig. 10 As can be seen, it can be provided that the lamella 16 serves to connect two membranes 15 to one another. Here they can Membrane 15 may also be coupled to the lamella 16 by means of an adhesive connection or another connection.

As in the exemplary embodiment Fig. 11 As can be seen, it can also be provided that the membrane 15 is coupled to the lamella 16 by means of a piping connection. A clamping element 28 can be provided here, which serves to fasten the membrane 15 to the lamella 16.

Fig. 12 shows a further exemplary embodiment of the structure of the umbrella crown 3, the struts 4 being shown to be greatly reduced in size compared to the dimensions of the support element. How out Fig. 12 As can be seen, it can be provided that a hold-down device 29 is arranged on the struts 4, by means of which the upper lamella 21 is deformed when the umbrella 1 is in the clamped state. This allows the upper slat 21 to be given increased stability. Furthermore, the connection points of the slat 16 to the strut 4 are shown. A lower lamella 22, which is arranged adjacent to the upper lamella 21, is also shown in dashed lines. In the case of a screen with six slats 16, the lower section showing the lower slat 22 is therefore offset by 60 ° to the upper section showing the upper slat 21.

In a further exemplary embodiment, not shown, it can also be provided that every second strut 4 simultaneously serves as an upper slat 21. In such an embodiment, the membrane 15 is attached directly to the strut 4.

For the sake of order, it should finally be pointed out that in order to better understand the structure, elements have sometimes been shown out of scale and/or enlarged and/or reduced in size.

List of reference symbols

1

umbrella

2

central support element

3

umbrella crown

4

strut

5

covering

6

first longitudinal end strut

7

second longitudinal end strut

8th

Strut holder

9

Swivel joint

10

external suspension point

11

strut support

12

first longitudinal end of strut support

13

second longitudinal end of strut support

14

Length of strut

15

membrane

16

lamella

17

Longitudinal extension of the lamella

18

Wide slat

19

central longitudinal end slat

20

outer longitudinal end of slat

21

upper slat

22

lower slat

23

upper recording level

24

lower recording level

25

Distance

26

Slat holder

27

traction means

28

Clamping element

29

Hold-down device

Claims (15)

1. An umbrella (1) with

   - a plurality of movable struts (4), which have an elongate extension;

   - a central strut holder (8) to which a first longitudinal end (6) of the struts (4) is pivotably attached;

   - a covering (5) which is coupled to the struts (4) at an outer suspension point (10) thereof,

   wherein

   the covering (5) comprises at least one membrane (15) and a plurality of slats (16), wherein the membrane (15) is flexible in comparison with the slats (16), wherein at least some of the slats (16) are each coupled to the struts (4) at the outer suspension point (10) or wherein every second one of the slats (16) is configured as an upper slat (21) and the slats (16) lying between these are configured as a lower slat (22) and every second one of the struts (4) simultaneously serves as an upper slat (21),

   characterized in that

   each second of the slats (16) is coupled to the central strut holder (8) and each intermediate slat (16) is coupled to a slat holder (26), wherein the central strut holder (8) is arranged in an upper receiving plane (23) and the slat holder (26) is arranged in a lower receiving plane (24) when the umbrella (1) is in the open state, wherein the upper receiving plane (23) and the lower receiving plane (24) are arranged at a distance (25) from one another.
2. The umbrella according to claim 1, characterized in that at least individual ones of the slats (16) are coupled at a central longitudinal end (19) to a common slat holder (26).
3. The umbrella according to claim 2, characterized in that a central support element (2) is formed, wherein the slat holder (26) is slidably received on the support element (2) and wherein the covering (5) is arranged on the underside of the struts (4).
4. The umbrella according to claim 3, characterized in that the central support element (2) is configured as a tube and serves to drain off the rainwater collected in the covering (5).
5. The umbrella according to one of the preceding claims, characterized in that the membrane (15) and the slat (16) are connected to one another by means of an adhesive.
6. The umbrella according to one of the preceding claims, characterized in that the slats (16) have a bulbous curvature with respect to their longitudinal extent (17) and/or have a bulbous curvature with respect to their width (18), wherein the slats (16) have an internal pretension and, when an acting force on the slats (16) is exceeded, the bulbousness of the curvature of the slats (16) with respect to their longitudinal extent (17) and/or the bulbousness of the curvature of the slats (16) with respect to their width (18) can be turned to the opposite side.
7. The umbrella according to one of the preceding claims, characterized in that at least one tensile means (27), in particular an elastic band, is coupled to the membrane (15), which applies a tensile force directed towards the center of the umbrella (1) to the membrane (15), wherein the elastic band (27) is tensioned between the membrane (15) and the central support tube (2).
8. The umbrella according to one of the preceding claims, characterized in that the slats (16) form a protective cover in the closed state of the umbrella (1).
9. The umbrella according to one of the preceding claims, characterized in that the number of slats (16) is the same as the number of struts (4).
10. The umbrella according to one of the preceding claims, characterized in that the membrane (15) is connected to the slat (16) over a length of between 70% and 100%, in particular between 90% and 100%, of the longitudinal extent (17) of the slat (16).
11. The umbrella according to one of the preceding claims, characterized in that the covering (5) is funnel-shaped when the umbrella (1) is stretched out, wherein the covering (5) has a gradient towards the center.
12. The umbrella according to one of the preceding claims, characterized in that, in the open state of the umbrella, all the slats (16) are arranged approximately in one plane at their outer longitudinal end (20) and the central longitudinal end (19) of every second slat (16) is arranged at an upper receiving plane (23) and the central longitudinal ends (19) of the remaining slats (16) are arranged at a lower receiving plane (24).
13. The umbrella according to one of the preceding claims, characterized in that the slat (16) has a smaller width (18) at the central longitudinal end (19) and at the outer longitudinal end (20) than at its longitudinal center.
14. The umbrella according to one of the preceding claims, characterized in that, in the closed state of the umbrella (1), the slats (16) overlap in such a way that they form an inner shell and an outer shell, wherein the slats (16) are assigned alternately to the inner shell and to the outer shell.
15. An umbrella arrangement comprising at least two umbrellas (1), which are positioned relative to one another in such a way that the underlying surface is completely covered by the covering (5) of the two umbrellas (1), characterized in that the umbrellas (1) are formed according to one of the preceding claims.

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