SCREEN, IN PARTICULAR FLAT SCREEN, AS WELL AS SYSTEM INDICATING THE SCREEN

Description

[0001] The present invention relates to an umbrella, comprising an umbrella cover for protection against the effects of the weather, a support element with a central guide and a slider which is displaceably mounted on the central guide and which can be displaced from a first position to a second position, thereby transferring the umbrella from a closed state to an open state, a pivotable first spoke which is articulatedly connected to the support element and a first rod which is connected to the first spoke and the slider. State of the art

[0002] Both round and flat umbrellas are known from the prior art. In round umbrellas, the spokes of the umbrella are arranged radially around a support element and, when the umbrella is opened, protrude radially from it. The umbrella cover is usually round or square and is also arranged radially around the central support element. When folded, the umbrella cover encloses the support element and rests against it. Umbrellas and parasols are usually designed as round umbrellas, and these are available in both portable and stationary versions. Stationary round umbrellas can be designed as central mast or side mast umbrellas. In a central mast umbrella, the support element is formed by the central mast itself, while in a side mast umbrella the support element is attached to the side mast and supported by it.

[0003] In the context of the present invention, however, flat umbrellas are understood to mean umbrellas in which the spokes are not arranged radially around a central support element, but in the stretched state form an umbrella surface on one long side of the support element.

[0004] For example, flat umbrellas are known from the prior art (GB 159,743 A) that have a plurality of spokes that are pivotally connected to the central support element of the umbrella. The spokes are also connected via rods to a slider that is slidably mounted on the support element. When the slider on the support element is moved, the rods are displaced, increasing the angle between the spokes and the support element, thereby opening the umbrella.

[0005] Flat umbrellas are also known from the prior art (DE 47479 C) in which several spokes are connected to the central support element in an articulated manner. The spokes are arranged one behind the other in a scissor-like manner and connected to each other via joints, so that when the angle of a spoke is changed, all spokes can be moved from a position adjacent to the support element (closed) to a position extending away from the support element (open). When opened, the spokes then jointly stretch the umbrella cover. The support element can also have a curved shape, resulting in a leaf-like shape of the opened umbrella.

[0006] However, the flat umbrellas known from the state of the art all suffer from the disadvantage of their low stability against acting forces (especially wind pressure), especially with larger umbrella surfaces. Furthermore, such umbrellas are usually complex in design and require numerous spokes to achieve the necessary tension in the umbrella cover when opened. Disclosure of the invention

[0007] The present invention therefore aims to improve an umbrella of the type mentioned above so that it can be manufactured in a simple and cost-effective manner and has high stability and durability. Such an umbrella can thus be associated with significant economic potential.

[0008] The invention solves the stated problem by a screen according to the subject matter of independent patent claim 1. Preferred embodiments of the screen emerge from the dependent patent claims and the embodiments presented below.

[0009] In general, it is stated that the umbrella in the sense of the present invention is a flat umbrella in which the spokes and the umbrella cover are not arranged radially around the central support element, but span an umbrella surface on one longitudinal side of the support element.

[0010] According to a first aspect of the invention, the umbrella has a cover. The cover can be any type of cover suitable for protection against the elements.

[0011] In particular, within the meaning of the present invention, reference refers to any flexible or dimensionally unstable element which, in an open state, forms the screen surface of the screen.

[0012] The umbrella surface is the area exposed to the elements and forms a barrier to protect people or objects beneath or behind the umbrella surface from the elements. These environmental influences can include sunlight, rain, wind, and other atmospheric conditions. The umbrella can be used as a parasol, umbrella, windbreak, advertising umbrella, or similar.

[0013] According to a further aspect of the invention, the umbrella has a support element with a central guide and a slider which is displaceably mounted on the central guide and can be moved from a first position to a second position, thereby changing the umbrella from a closed state to an open state. This means that if the slider is in the first position, the umbrella is in its closed state, and if the slider is in the second position, the umbrella is in its open state. If the slider is moved from the first position to the second position, the umbrella is opened; if the slider is moved from the second position back to the first position, the umbrella is closed. The support element serves as the structural backbone of the umbrella and provides essential structural support for all of the umbrella's components.In particular, the forces introduced via the umbrella cover are absorbed and dissipated or diverted via the supporting element.

[0014] According to a further aspect of the invention, the umbrella has a pivotable first spoke articulated to the support element, and a first rod connected to the first spoke and the slider. Because the first rod is connected to both the slider and the first spoke, the angle between the support element and the first spoke can be changed by moving the slider along the central guide on the support element. Thus, by changing the position of the slider, pressure can be exerted on the first spoke, which can be used to flatten the umbrella cover.

[0015] According to the invention, the umbrella cover has at least one first edge guide in which the first spoke is guided so as to be displaceable along its longitudinal direction. The first spoke can thus move essentially freely within the first edge guide, allowing it to change its position within the first edge guide when the umbrella is opened or closed. The first spoke is guided in a sliding or sliding manner within the edge guide; the first spoke can therefore slide up and down within the edge guide.

[0016] By guiding the first spoke in an edge guide of the umbrella cover, the maximum tension exerted by the spoke on the umbrella cover can also be increased, as the spoke can exert the pressure evenly over an extended edge area of ​​the umbrella cover. State-of-the-art flat umbrellas usually have rib-like spokes that extend from the supporting element to an edge area of ​​the umbrella cover and usually exert pressure there in a specific location (e.g., by the spoke engaging in an edge pocket of the umbrella cover - in which the spoke is not freely movable - or by the spoke being permanently attached to an edge end of the umbrella cover). Thus, even a single spoke can exert a high pressure across the entire length of the edge guide of the umbrella cover.

[0017] In summary, the sliding guide of the first spoke in a first edge guide of the umbrella cover allows for the creation of a mechanically and structurally particularly simple umbrella, which can offer the largest possible canopy surface for protection against the weather while maintaining high stability. Furthermore, the material and cost requirements for umbrella production can be kept to a minimum.

[0018] Thanks to the articulated and pivoting first spoke, which in particular has a lower free end not directly connected to the support element, the length of the first spoke can be limited to the length of the support element without significantly restricting the available canopy area. This is particularly true in contrast to umbrellas in which both ends of the first spoke are directly connected to the support element. In this case, the length of the first spoke must correspond to a multiple of the projected length of the (bent) spoke onto the support element in order to achieve a corresponding curvature and thus expansion of the canopy area. An umbrella with a particularly compact design can thus be created.

[0019] Further embodiments of the invention are presented below. Unless otherwise stated, the illustrated embodiments, or individual aspects of the embodiments, can be combined with one another in any way.

[0020] According to one embodiment of the invention, the first spoke is connected to the umbrella cover at least in part, so that the umbrella cover is stretched by changing the angle between the first spoke and the support element. The connection between the first spoke and the umbrella cover can be achieved by guiding the first spoke in the first edge guide of the umbrella cover.

[0021] According to one embodiment of the invention, the edge guide forms the edge of the umbrella cover at least in part and / or the edge guide at least in part follows the edge of the umbrella cover. By guiding the first spoke in a first edge guide of the umbrella cover, which at least partially forms the edge of the umbrella cover or follows it, a high tension can be reliably exerted by the spoke directly on the edge of the umbrella cover.

[0022] According to one embodiment of the invention, the first spoke can have a free area at its lower end which protrudes from the lower end of the first edge guide when the umbrella is closed. The free area of ​​the spoke enables the umbrella to be folded compactly, whereby the umbrella cover can be held slackly and tightly against the support element when folded. The umbrella cover can thus gather along the first spoke when folded and thus shorten its length in the area of ​​the edge guide in order to release the free area at the lower end of the first spoke and relieve the tension in the umbrella cover. This enables the outer shape of the umbrella to be precisely specified through the design of the umbrella cover and the guide of the edge guide. The first spoke can flexibly adapt to the shape of the umbrella cover.

[0023] According to a further embodiment of the invention, the free area of ​​the first spoke can be located within the first edge guide when the umbrella is open. When the umbrella is opened or unfolded, the first spoke is in turn pressed into the edge guide of the umbrella cover by the first rod and in the process takes on the shape of the edge guide of the umbrella cover. In particular, the first rod can exert high pressure on the first spoke and thus also on the edge of the umbrella cover, which is then unfolded and its surface area is enlarged according to its external shape. The free area of ​​the first spoke disappears back into the first edge guide due to the change in length of the edge guide (by loosening the gathers of the umbrella cover), and the first spoke can exert pressure on the edge of the umbrella cover along its entire length.

[0024] According to a further embodiment of the invention, the first spoke can additionally have a retaining means at its lower end. This retaining means ensures that the lower end of the first spoke does not completely penetrate the first edge guide. The retaining means is positioned, in particular, against a lower stop of the first edge guide, thus allowing the first spoke to rest in the first edge guide along its entire length and exert pressure on it.

[0025] According to a further embodiment of the invention, the first spoke can follow a curved curve along its longitudinal direction when the umbrella is open, and essentially a straight line when the umbrella is closed. The curved curve in the open state is created by the course of the first edge guide along the edge of the umbrella cover, with the first spoke being pressed into the first edge guide by the pressure of the first rod. When the umbrella is closed, the first spoke is not pressed into the first edge guide by the first rod, so it can resume its tension-free, straight shape, and the umbrella cover can be pushed upwards in a gathered manner along the first spoke.

[0026] According to a further embodiment of the invention, the first spoke can be connected to one end of the support element via a joint. This jointed connection allows the first spoke to seamlessly follow the shape defined by the edge guide of the umbrella cover.

[0027] According to a preferred embodiment, the joint can have at least one degree of freedom and be designed as a planar pivot joint. The planar pivot joint allows the first spoke to be mounted at a specific angle to the support element, so that the rotational axis of the pivot joint is not perpendicular to the longitudinal direction of the support element or to a direction of extension of the support element.

[0028] The angle of attack in the sense of the present invention is the angle between the first spoke and the support element by which the axis of rotation of the joint is tilted relative to the support element.

[0029] Preferably, the first spoke can be connected to an upper end of the support element via the joint. Thus, the first spoke can extend from the upper end of the support element to the lower end of the support element and, when the umbrella is folded, rest against the support element. This allows the user to open the umbrella comfortably.

[0030] According to one embodiment, the joint between the first spoke and the support element can be formed as a solid-state joint by the first spoke itself (for example, by a tapered portion of the material). The first spoke can be attached, in particular clamped, to the support element in the area of ​​the joint.

[0031] According to a preferred embodiment, the joint between the first spoke and the supporting element can be designed as a radial spherical plain bearing. Such a radial spherical plain bearing has a ball joint rotatably mounted in a radial bearing, which, on the one hand, enables complete (unrestricted) rotation around the axis of rotation of the radial bearing and, on the other hand, enables partial (restricted) rotational movement in the two other axes, which are orthogonal to the axis of rotation of the radial bearing. In addition to the free rotation of the first spoke around a rotational axis, this also enables the spoke to deflect in other spatial directions when forces act on the first spoke (for example, due to wind pressure), thus reducing the loads on the joints and the spoke. This creates a more reliable and stable umbrella.

[0032] According to one embodiment, the first spoke can be designed as an elastic rod. The elastic rod can be made of an elastic material that does not undergo plastic deformation under the forces acting on the rod during intended use. The first spoke can thus spring back to its original straight position after each load, or relax and assume its original straight position.

[0033] According to one design variant, the first spoke (the elastic rod) can be made of glass-fiber-reinforced plastic. This allows for high elasticity with reliably adjustable flexural rigidity, while the glass-fiber reinforcement also prevents spoke breakage or buckling.

[0034] The glass-fiber-reinforced plastic can preferably comprise a polyetherimide. Glass-fiber-reinforced polyetherimides, in particular, can exhibit particularly high impact resistance, thus further increasing the stability of the umbrella. In particular, this counteracts early material fatigue, for example, due to wind forces.

[0035] According to one design variant, the first spoke can also be made of spring steel.

[0036] According to a variant embodiment of the invention, the first spoke may have a round, square, rectangular or elliptical cross-section.

[0037] If the first spoke has an elliptical or rectangular cross-section, it will exhibit varying flexural rigidity along its transverse directions. Along a transverse direction with lower flexural rigidity, a primary bending direction can develop, with the first spoke preferentially bending or curving in the primary bending direction when subjected to forces. This is because the flexural rigidity is directly proportional to the square of the ratio between the extensions of the first spoke along its transverse directions. Doubling the width of the first spoke along a transverse direction thus quadruples the flexural rigidity along this direction. By changing the cross-section, a clear preferred direction for the bending of the first spoke can be created, further increasing the dimensional stability of the umbrella when unfolded.In particular, wind forces can be better dissipated in this way.

[0038] According to one embodiment, the first spoke can have a cross-sectional taper along its longitudinal direction. Preferably, the first spoke has the largest cross-sectional area at its upper end, by which it is attached to the support element. This cross-sectional area can then taper towards the lower end of the first spoke, thus changing the flexural rigidity along the longitudinal direction of the first spoke. The first spoke then has the highest flexural rigidity in the region of the upper end and a lower flexural rigidity in the region of the lower end. This also allows the achievable curvature of the first spoke to change along its longitudinal extent, with smaller radii of curvature being possible in the region of the lower end of the first spoke.

[0039] According to one design variant, the first spoke and / or the first rod and / or the supporting element can be constructed in multiple parts. This significantly reduces the pack size of the umbrella, as the spokes, rods, and supporting element require a lot of space due to their length. This allows for the creation of an umbrella with a large canopy surface that can also be particularly transportable.

[0040] According to one embodiment variant, the first spoke can have several spoke segments along its longitudinal extent, which can be connected to one another to form the first spoke.

[0041] Furthermore, according to one embodiment variant, the first rod can have several rod segments along its longitudinal extent, which can be connected to one another to form the first rod.

[0042] Likewise, according to one embodiment variant, the support element can have several segments along its longitudinal extent, which can be connected to one another to form the support element.

[0043] The connections between the spoke segments of the first spoke, the connections between the rod segments of the first rod, or the connection between the segments of the supporting element can each be achieved by plug connections, screw connections, or the like, depending on a design variant. For example, each segment can have a plug-in receptacle at one end and a pin at its opposite end, which form the connection with the next segment.

[0044] In addition, the connections between the spoke segments, the rod segments or the segments of the supporting element can be secured by securing elements such as pins, screws, cords, elastic bands, etc.

[0045] According to one embodiment, the spoke segments of the first spoke can be connected by a clamping element that penetrates the spoke segments one after the other along central bores. The connections of the spoke segments can then be released by pulling them apart (and releasing the clamping element), allowing the spoke segments to be folded together parallel to one another. When reassembling, the spoke segments can be lined up again lengthwise, whereby the clamping element can be re-tensioned and holds the spoke segments together. In particular, the spoke segments can have plug-in connections for easy assembly. This creates a particularly compact and portable umbrella that is easy to assemble.

[0046] According to one design variant, the first guide can be designed as a guide tunnel or tube in the umbrella cover. This guide tunnel or tube can be provided in a particularly simple way, for example, by means of darts in the umbrella cover, thus enabling a particularly simple and cost-effective production of the umbrella.

[0047] According to a further embodiment, the first guide can be formed by one or more guide means, such as rings, eyelets, or the like. The guide means can preferably be provided at regular intervals along the edge of the umbrella cover, with the first spoke being slidably guided within the guide means.

[0048] According to one embodiment, the lower end of the first guide can be connected to the support element via a first spacer. The spacer can ensure that, when opened, the umbrella cover can be fixed in the area of ​​the lower end at a distance from the support element. In particular, this is intended to avoid the lower end of the umbrella cover and the first spoke also having to be fixed to the support element, as this would severely limit the available umbrella area. The first spacer not only ensures reliable fixation of the umbrella cover, but also allows larger umbrella areas to be achieved. When the umbrella is opened, the pressure of the first rod rotates the first spoke relative to the support element and protrudes at an angle from the support element. Initially, the first spoke is still straight and the umbrella cover is gathered over the first spoke in the area of ​​the edge guide.As soon as the spacer in the lower area of ​​the canopy limits the opening angle of the (straight) first spoke, the rotation of the first spoke changes into a rotation with bending and pressure along the edge guide. Finally, when the canopy is fully extended, the first spoke takes on the shape of the canopy in the area of ​​the edge guide.

[0049] According to another design variant, the lower end of the first guide can also be connected to another spoke, such as a second spoke. This eliminates the need for a direct connection to the supporting element in the lower area, allowing for an even more flexible design of the canopy surface. Furthermore, this can further increase flexibility in the lower area, further facilitating the transfer of wind forces.

[0050] According to one embodiment, the spacer can be formed by a free edge of the umbrella cover. This is preferably the lower edge or the lower border of the umbrella cover, where there is no edge guide and thus no spoke. The free edge can be reinforced to increase stability.

[0051] According to one embodiment, the spacer can be formed by a separate, particularly flexible, element, for example, a cord, a (steel) cable, or the like. This can also be provided in addition to the free edge of the umbrella cover, for example, to further increase the safety of the umbrella, in particular to prevent the umbrella cover from tearing.

[0052] According to one embodiment of the invention, the umbrella cover and the first guide can have a recess in the region of the connection between the first rod and the first spoke. The recess can be provided such that a hole is provided at the edge in the umbrella cover, and the first edge guide is recessed in the region of the hole or divided into an upper and a lower part.

[0053] According to one design variant, the umbrella cover can be made of textile, foil, or another flat material. The textile can be, for example, a woven, knitted, or warp-knitted fabric.

[0054] According to one embodiment, the umbrella cover can be made of a weather-resistant material. In particular, the umbrella cover can comprise natural fibers and / or synthetic fibers or mixtures thereof, preferably hemp, cotton, wool, silk, viscose, lyocell, modal, acetate, polyester, polyethylene, polyamide, polyimide, aramid, polypropylene, polyvinyl alcohol, or elastane fibers.

[0055] According to one embodiment, the umbrella cover can contain substances, in particular titanium dioxide (TiO2) and / or barium sulfate (BaSO4), to increase UV absorption and / or reflection. These substances can be incorporated, in particular, into the fibers of the umbrella cover. This allows for the creation of an umbrella cover with lower UV transmittance.

[0056] According to one embodiment, the umbrella cover can have a coating or finish, in particular comprising a synthetic resin, which further increases the weather resistance and stability or integrity of the umbrella cover.

[0057] According to one embodiment, the umbrella can have at least one tensioning device for tensioning the umbrella cover on the support element. The tensioning device can preferably be provided in the region of the upper side and / or the lower side of the support element. Thus, by actuating the tensioning device, the tension of the umbrella cover over the support element can be increased or decreased.

[0058] The umbrella cover can preferably be connected to the support element via the tensioning device.

[0059] According to one embodiment, the umbrella can have a tensioning device for tensioning the umbrella cover on the first rod. The tensioning device can, for example, cause a change in the length of the first rod, thus increasing or decreasing the tension on the first spoke. This, in turn, increases or decreases the tension of the umbrella cover in the edge area (at the first spoke).

[0060] According to one embodiment, the first rod can be connected to the first spoke and the slider via a joint. The joints can have at least one (rotational) degree of freedom and each allow rotation about a rotational axis. For example, the joints can be designed as swivel joints, ball joints, or radial spherical plain bearings.

[0061] According to one embodiment of the invention, the slider can be designed to be manually movable along the central guide. In particular, the slider can have a handle or an actuating element for this purpose, which allows for easy and secure gripping of the slider.

[0062] According to one embodiment of the invention, the screen can have a drive to move the slider along the central guide. The drive can be a linear drive, a crank drive, or the like.

[0063] For example, a crank drive can have a crank for manual operation and a cable connected to the crank, with the cable being guided over a pulley at the upper end of the support element. By turning the crank, the free cable length can be shortened or lengthened, and the slider can be moved toward the top or bottom of the support element.

[0064] Alternatively, the crank can also drive a toothed belt or a rack or the like to move the slider along the central guide.

[0065] According to one embodiment, the drive can comprise a cable connected to the slider, whereby a user can pull the cable directly to move the slider along the central guide. The cable can comprise a cable that is guided over a pulley at the upper end of the support element, in order to open the umbrella from below by pulling on the cable. Due to the force of gravity, the umbrella can then, for example, automatically return to its closed position without pulling. In particular, a spring can also be provided for automatically closing the umbrella, which pushes the slider towards the closed position.

[0066] Preferably, the support element can also be provided with an attachment point to which the cable of the cable pull can be secured when the umbrella is open. Such an attachment point can be designed, for example, as an eyelet or cleat to which the cable can be tied.

[0067] According to one embodiment, the drive can be a motorized drive. Such a motorized drive can comprise, for example, a motor for driving a shaft or a linear motor to move the slider along the central guide. For example, the motor can drive a shaft connected to the slider via a cable or belt via a pulley, thus moving the slider through the rotation of the shaft.

[0068] According to one embodiment of the invention, the umbrella can have a second spoke connected to the support element and a second rod connected to the second spoke and the slider, wherein the umbrella cover has a second guide in which the second spoke is guided displaceably along its longitudinal direction.

[0069] All the explanations and design variants previously given with regard to the first spoke, the first rod and the first edge guide apply analogously to the second spoke, the second rod and the second edge guide.

[0070] According to one embodiment of the invention, the first spoke and the second spoke can be arranged mirror-symmetrically to each other around the support element. In the unfolded state of the umbrella, the first spoke would then protrude, for example, on the right side of the support element, while the second spoke would protrude on the left side of the support element. The curve of the first spoke in the first edge guide would thereby be essentially mirror-symmetrical to the curve of the second spoke in the second edge guide. With the umbrella according to the invention, a large canopy surface can be achieved using simple construction and minimal material usage.

[0071] According to one embodiment of the invention, the first spoke and the second spoke can have the same angle of attack relative to the support element. If, for example, both spokes have an angle of attack relative to the support element, the umbrella cover can assume a roof-like shape when unfolded. An umbrella cover unfolded in such a roof-like shape can also exhibit greater stability against wind forces than a flat umbrella cover.

[0072] In other words, according to one embodiment variant, the axes of rotation of the joint between the first spoke and the support element and / or the joint between the second spoke and the support element can be tilted by the angle of attack relative to the longitudinal extension of the support element on its upper side.

[0073] According to one embodiment of the invention, the umbrella cover can extend between the first spoke and the second spoke. In this case, the umbrella cover does not need to be separately connected to the support element, but can be stretched by the spokes alone. This allows for a particularly simple umbrella design. Furthermore, it allows for easier replacement of the umbrella cover.

[0074] According to an alternative embodiment, the umbrella cover can also have a first cover part and a second cover part, wherein the first cover part extends between the first spoke and the support element and the second cover part extends between the second spoke and the support element.

[0075] According to one embodiment, the umbrella cover can be connected to the supporting element via connecting means.

[0076] According to one embodiment variant, the connecting means between the umbrella cover and the support element can have a piping, which can be inserted into a corresponding piping rail on the support element and which together form the connecting means in order to fasten the umbrella cover to the support element.

[0077] According to a further embodiment, the connecting means between the umbrella cover and the support element can have eyelets, twist locks or the like, which are arranged along the longitudinal extent of the support element.

[0078] According to one embodiment, the slider can also be divided into a first slider and a second slider, with the first slider being connected to the first rod and the second slider being connected to the second rod. This allows for separate opening of the first and second cover parts. This creates a particularly flexible umbrella.

[0079] According to one embodiment of the invention, the support element can be curved along its longitudinal direction. The curvature of the support element also creates a curved shape for the umbrella cover when opened, allowing, for example, an umbrella with an (organic) leaf shape to be obtained. Such a curved shape of the support element can also further contribute to the stability of the umbrella.

[0080] The invention further achieves the stated object by a system comprising at least one first umbrella according to one of claims 1 to 9 and a mast, wherein the support element of the first umbrella is connected to the mast. The first umbrella can be mounted vertically or horizontally on the mast, for example, thus providing weather protection in many different application situations.

[0081] According to one version of the system, the first umbrella can be pivotally connected to the mast, creating a particularly flexible system.

[0082] According to a further embodiment of the system, the mast can have a mast slider connected to the slider of the first umbrella via a rod. By moving the mast slider on the mast, the slider in the central guide of the first umbrella can be moved from the first position to the second position. The mast slider can thus actuate the slider of the first umbrella to open, unfold, or close the first umbrella. This creates a particularly easy-to-use and ergonomic system that enables remote operation of the slider of the first umbrella.

[0083] According to a further embodiment of the system, the system may comprise a second umbrella according to any one of claims 1 to 9, wherein the support element of the second umbrella is connected to the mast. Similarly, the system may also comprise a third or further umbrella according to any one of claims 1 to 9.

[0084] Likewise, the sliders of the second umbrella, or of any additional umbrella, as previously described for the first umbrella, can be connected to the mast slider via the rod in order to enable the umbrellas to be opened or closed (jointly) via the mast slider.

[0085] According to a further embodiment, several mast sliders can also be provided on the mast, with each mast slider being designed to open and close an umbrella.

[0086] Any desired form of system for protection against the effects of the weather can be created in this way. For example, a cloverleaf-shaped arrangement of umbrellas can be created by radially arranging several umbrellas around the mast, with each individual leaf of the cloverleaf being formed by an umbrella according to the invention. The individual umbrellas can be opened or closed separately or together using the mast slider(s). Likewise, the individual umbrellas of the system can each have their own umbrella cover. Alternatively, all umbrellas of the system can have a common umbrella cover that extends over the entire umbrella surface of the system.

[0087] According to a further embodiment of the system, the mast and the support elements of the first and second umbrellas can be formed as a single piece. Instead of two separate support elements for the first and second umbrellas, the support elements of the first and second umbrellas are each the mast itself. The central guide for the first and second umbrellas, along with the respective sliders for opening and closing the first and second umbrellas, is then provided on the mast. The two umbrellas can be located opposite each other on the mast, i.e., at opposite ends of the mast, with the opening directions of the first and second umbrellas running in opposite directions.

[0088] According to the invention, an umbrella according to one of claims 1 to 9 or according to the embodiments described above can be used as a sunshade, as a vertical sunshade, as a sun sail, as a windbreak, as a rainbreak or as an advertising flag.

[0089] According to the invention, an umbrella according to one of claims 1 to 9 can be suitable as a self-supporting umbrella, i.e., as an umbrella that automatically follows the position of the sun. For this purpose, the umbrella can have a motorized drive to enable automatic support. Such an umbrella can be suitable for use on the beach, in restaurants, on terraces, or in leisure areas.

[0090] An umbrella according to any one of claims 1 to 9 is also suitable for use as an attachment umbrella. This can be attached or mounted to leisure furniture, such as sun loungers, as well as to vehicles on land or water, e.g., mobile homes, boats, ships, etc. Short description of the characters

[0091] Preferred embodiments of the invention are described in more detail below with reference to the drawings. They show: Fig. 1a schematic view of an umbrella according to a first embodiment in the open state, Fig. 2aa schematic representation of the umbrella from Fig. 1 in the closed state, Fig. 2b schematic representation of the screen from Fig. 1 in a first (almost closed) intermediate state, Fig. 2c a schematic representation of the screen from Fig. 1 in a second (almost open) intermediate state, Fig. 2 shows a schematic representation of the screen from Fig. 1 in the open state, Fig. 3 a schematic view of an umbrella according to a second embodiment in the open state, Fig. 4 a schematic detailed view of the umbrella from Fig. 3 in the area of ​​the slider, Fig. 5a a schematic detailed view of the screen from Fig. 3 in the area of ​​the first edge guide, Fig. 5b schematic sectional view through a ball joint of the umbrella from Fig. 3 , Fig. 6a schematic representation of the screen from Fig. 3in the region of the upper side of the support element, Fig. 7 a system according to a first embodiment of the invention, Fig. 8 a system according to a second embodiment of the invention, Fig. 9 a system according to a third embodiment of the invention, Fig. 10 a system according to a fourth embodiment of the invention, Fig. 11 a system according to a fifth embodiment of the invention, Fig. 12 a system according to a sixth embodiment of the invention, Fig. 13 a system according to a seventh embodiment of the invention, Fig. 14 a system according to an eighth embodiment of the invention, Fig. 15 a system according to a ninth embodiment of the invention, Fig. 16 a system according to a tenth embodiment of the invention, Fig. 17 a system according to an eleventh embodiment of the invention, Fig. 18 a system according to a twelfth embodiment of the invention, Fig.19 a schematic view of the underside of a system according to a thirteenth embodiment of the invention, Fig. 20 a side sectional view of the system according to . Fig. 19 , and Fig. 21 an axonometric view of the system according to Fig. 19 . Ways to implement the invention

[0092] The embodiments of the invention illustrated below with reference to the figures are to be understood as examples. It is noted that all illustrated embodiments, as well as individual parts and features thereof, can be combined with one another in any way according to the patent claims, unless otherwise stated.

[0093] In the Fig. 1 and 2a to 2d a screen 100 according to a first embodiment of the invention is shown.

[0094] The umbrella 100 has an umbrella cover 1 for protection against weather influences, such as sunlight, wind, or rain. The umbrella cover 1 is provided over a support element 2 of the umbrella 100 and stretched between two spokes 3.1, 3.2.

[0095] The umbrella 100 is designed as a flat umbrella. The spokes 3.1, 3.2 of the umbrella 100 are not arranged radially around the support element 2, but rather form a canopy surface on one side of the support element 2 when unfolded. The canopy surface is not arranged perpendicular to the support element 2, but rather at an angle or parallel to the support element 2.

[0096] For opening the umbrella 100, the support element 2 has a central guide 4 with a slider 5 slidably mounted therein. According to the first embodiment, the central guide 4 is formed directly in the umbrella 100 by the support element 2 itself. The slider 5 is slidably mounted on the support element 2.

[0097] The first spoke 3.1 and the second spoke 3.2 are each connected to the support element 2 via joints 7 on an upper side 6 of the support element 2. The spokes 3.1, 3.2 are each freely rotatable about the axes of rotation 8 of the joints 7 and can thus protrude at an angle 9 relative to the support element 2.

[0098] A first rod 10.1 is provided between the slider 5 and the first spoke 3.1; a second rod 10.2 is provided between the slider 5 and the second spoke 3.2. The first spoke 3.1 and the first rod 10.1 are preferably formed symmetrically with the second spoke 3.2 and the second rod 10.2, resulting in an umbrella 100 that is mirror-symmetrical around the support element 2. The umbrella cover 1 has a recess 26 in those areas where the first rod 10.1 and the second rod 10.2 are connected to the first spoke 3.1 and the second spoke 3.2, respectively.

[0099] By moving the slider 5 along the central guide 4, the pressure exerted by the rods 10.1, 10.2 on the respective spokes 3.1, 3.2 can be adjusted and thus the umbrella 100 can be opened or closed.

[0100] In the Fig. 2a to 2d the screen 100 is shown during the opening or closing process, where Fig. 2ashows the screen 100 in the fully closed state 11 and Fig. 2d shows the umbrella 100 in the fully opened or unfolded state 12. In Fig. 1 the screen 100 is also shown in the open state 12.

[0101] In the closed state 11, as in Fig. 2a shown, the slide 5 is in a first position 13. In the open state 12, as shown in the Fig. 1 and 2d As shown, the slider 5 is in a second position 14. By moving the slider 5 from the first position 13 to the second position 14, the umbrella 100 can thus be opened, or by moving the slider 5 from the second position 14 back to the first position 13, the umbrella 100 can be closed.

[0102] As in Fig. 1As shown, the first spoke 3.1 and the second spoke 3.2 are each guided in a first edge guide 15.1 and a second edge guide 15.2 of the umbrella cover 1 in a linearly displaceable manner. The spokes 3.1, 3.2 can thus move or slide along their longitudinal extent in the edge guides 15.1, 15.2 when the umbrella 100 is opened or closed.

[0103] In the open state 12, the first spoke 3.1 and the second spoke 3.2 are completely received in the edge guides 15.1, 15.2 and the rods 10.1, 10.2 press the spokes 3.1, 3.2 towards the edge 16 of the umbrella cover 1. The spokes 3.1, 3.2 then exert pressure over their entire length on the edge guides 15.1, 15.2 and thus completely stretch the umbrella cover 1.

[0104] The edge guides 15.1, 15.2 are designed as guide tunnels or guide tubes along the edge 16 in the umbrella cover 1. This can be achieved particularly easily, for example, by sewing the umbrella cover 1 at the edge 16 to form a tube or tunnel.

[0105] The spokes 3.1, 3.2 are preferably made of elastic material so that they assume the shape or contour of the umbrella cover 1 under the pressure of the rods 10.1, 10.2.

[0106] To secure the spokes 3.1, 3.2 on the underside 17 of the support element 2, they are connected to the support element 2 via spacers 18. The spacers 18 serve to secure the distance between the spokes 3.1, 3.2 and the support element 2, so that the pressure exerted by the rods 10.1, 10.2 on the spokes 3.1, 3.2 can be fully utilized to tension the umbrella cover 1. The spacers 18 are preferably, as in Fig. 1indicated, designed as reinforced lower free edges 19 of the umbrella cover 1.

[0107] The free movement of the spokes 3.1, 3.2 in the edge guides 15.1, 15.2 enables a simple and complete closing of the umbrella 100, since the lower free areas 20 of the spokes 3.1, 3.2 can simply move out of the edge guides 15.1, 15.2 during closing, thus reducing the tension in the umbrella cover 1. The umbrella cover 1 can move upwards along the spokes 3.1, 3.2 and gather slightly to release the free areas 20 of the spokes 3.1, 3.2. This is particularly important in the Fig. 2a, 2b and 2c shown in detail. The recesses 26 provide additional space for the umbrella cover 1 to slide upward without being blocked by the connections between spokes 3.1, 3.2 and poles 10.1, 10.2.

[0108] The spokes 3.1, 3.2 then lose their curved curve, which they have in the open state 12, and return to a straight curve in the closed state 11.

[0109] In order to prevent the umbrella cover 1 from slipping off the spokes 3.1, 3.2 under tension in the open state 12, the spokes 3.1, 3.2 each have retaining means 21 at their lower ends, which prevent the spokes 3.1, 3.2 from completely penetrating the edge guides 15.1, 15.2.

[0110] This alternating engagement and release of the free areas 20 of the spokes 3.1, 3.2 enables, in a particularly simple construction, the tension in the canopy cover 1 to be built up and released solely by pressure via the rods 10.1, 10.2. This allows for the creation of a very simple and reliable canopy with comparatively large canopy surfaces.

[0111] In the Fig. 3 to 6a screen 101 according to a second embodiment of the invention is shown.

[0112] Unless expressly stated otherwise below, the above statements regarding the screen 100 according to the first embodiment are analogously applicable to the screen 101 according to the second embodiment. For the explanation of the reference symbols and features not described below in the Fig. 3 to 6 The above statements are based on the Fig. 1 to 2d referred to.

[0113] The screen 101 according to the second embodiment variant has in its support element 2 a central guide 4 designed as a T-slot 22 (in Fig. 4 The slider 5 is thus guided in the T-slot 22 with a suitable nut and can be easily fixed in any position using a locking screw 23. This allows the required tension in the umbrella cover 1 to be easily and reliably established by applying pressure from the rods 10.1, 10.2 to the spokes 3.1, 3.2.

[0114] According to further embodiments, which are not illustrated in detail in the figures, the central guide 4 can also be designed in the form of other profiles (e.g., H-profile, I-profile, etc.). The profile groove can be provided either on the support element 2 or on the slide 5. Likewise, locking or clamping elements can be provided to secure or fix the slide 5 in the central guide 4. For example, the support element 2 can have locking holes at regular intervals, into which a (preferably spring-loaded) pin on the slide 5 can releasably engage.

[0115] In addition, the guide element 2 has a curved profile along its longitudinal extent. The guide element 2 is bent, in particular, toward the side facing away from the umbrella cover 1, so that the umbrella cover 1 is stretched in a sheet-like or round shape over the support element 2.

[0116] The rods 10.1, 10.2 are connected to the slider 5 via ball joints 24. Likewise, the rods 10.1, 10.2 are connected to the spokes 3.1, 3.2 via ball joints 24, as shown in detail in the Fig. 4 and 5 As previously mentioned, the recesses 26 in the umbrella cover 1 create space, in particular, for the umbrella cover 1, which slides up along the spokes 3.1, 3.2 when the umbrella is closed. Furthermore, the recesses 26 can accommodate the ball joints 24 at the connection between spokes 3.1, 3.2 and rods 10.1, 10.2.

[0117] In Fig. 6, the upper side 6 of the support element 2 is shown in detail. Here, it can be seen that the spokes 3.1, 3.2 are attached to the support element 2 at an angle of attack 25 relative to the support element 2. This angle of attack 25 serves to align the spokes 3.1, 3.2 when the support element 2 is curved so that they follow the course of the support element 2 towards its underside 17 and the umbrella cover 1 takes on an organic and casual shape over the support element 2. In addition, the angle of attack 25 can increase the stability of the umbrella 101, since the curved, roof-shaped course of the umbrella cover 1 achieves greater resistance to acting wind forces. The angle of attack 25 is to be understood as the angle between the longitudinal extension 27 of the support element 2 on its upper side 6, i.e. the linear extrapolation of the support element 2 on the upper side 6, and the axis of rotation 8 of the joint 7.Preferably, the joints 7 are aligned parallel to the chord between the top side 6 and the bottom side 17 of the support element 2. Thus, the spokes 3.1, 3.2 can be aligned along the chord, ensuring a particularly stable and resilient shape of the umbrella cover 1, particularly in the case of a curved or arched support element 2.

[0118] In the Fig. 7 to 21 Systems 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212 are shown comprising one or more screens according to different embodiments of the invention. For the following description of systems 200-212, reference is made to the above statements regarding screens 100, 101, which are also applicable to screens 102-122 of systems 200-212.

[0119] Fig. 7 shows a system 200 according to a first embodiment, which comprises a screen 102 and a mast 50. The mast 50 also has a base 51 for secure installation.

[0120] The mast 50 is connected in one piece or integrally to the support element 2 of the umbrella 102. The slider 5 of the umbrella 102 is thus mounted on the mast 50 as a support element 2 and can be moved to open or close the umbrella 102.

[0121] The umbrella cover 1 of the umbrella 102 has a flat sheet shape and the umbrella 102 is aligned in the vertical direction.

[0122] In Fig. 8 A system 201 according to a second embodiment variant with an umbrella 103 and a mast 50 is shown, wherein the support element 2 of the umbrella 103 is rotatably and / or pivotably connected to the mast 50 via a joint 52. The joint 52 is in particular attached to the mast slider 54, thus enabling height adjustment of the umbrella 103 along the (vertical) mast 50.

[0123] With regard to the functioning of the screen 103, reference is made to the above explanations regarding the screens 100, 101, which are applicable analogously.

[0124] In the Figs. 9 and 10 In turn, systems 202, 203 according to a third embodiment and according to a fourth embodiment are shown schematically.

[0125] The System 202 in Fig. 9 comprises a canopy 104 and a mast 50 with a base 51. The mast 50 is designed to be (vertically) telescopic, which allows for a height adjustment of the canopy 104, although this is not illustrated in detail in the figures. The support element 2 of the canopy 104 is rotatably connected to the mast 50 via a joint 52, so that the entire canopy 104 can be rotated horizontally and / or vertically.

[0126] As in Fig. 9As shown schematically, the shade 104 can be brought into a vertical orientation via the joint 52 with its rods 10.1, 10.2 and spokes 3.1, 3.2. The support element 2 protrudes horizontally from the mast 50. This creates a shading element with a vertically oriented shade surface, which is suitable, for example, for shading balconies or loggias.

[0127] The System 203 in Fig. 10 has two umbrellas 105, 106 and a mast 50 with a base 51.

[0128] The two umbrellas 105, 106 share a common support element 53; thus, support element 2 of umbrella 105 and support element 2 of umbrella 106 are integrally formed. The common support element 53 is, in turn, pivotably and rotatably connected to the mast 50 via a joint 52.

[0129] The two sliders 5 of the left umbrella 105 and the right umbrella 106 are slidably mounted on the common support element 53, wherein the sliders 5 of the left and right umbrellas 105, 106 can be displaced from the joint 52 in the direction of the respective edges of the support element 53 in order to open the respective umbrella 105, 106.

[0130] The umbrella cover 1 also extends over the left and right umbrellas 105, 106. A particularly wide and symmetrical system 203 with a large shading or advertising area can thus be created.

[0131] Such screens 102, 103, 104, 105, 106 or such systems 200, 201, 202, 203 are particularly suitable for use as advertising space or as stands for advertising purposes.

[0132] Likewise, such shades 102, 103, 104, 105, 106 or such systems 200, 201, 202, 203 can be used to shade balconies or loggias where vertical shading is advantageous due to limited space. These shades or systems can also be advantageously suited for mounting on or integrating into outdoor furniture, such as beach loungers, beach chairs, beach chairs, patio furniture, sandpits, as well as for attachment to water or land vehicles, or the like.

[0133] In Fig. 11 A system 204 according to a fifth embodiment of the invention is shown in a partially open side view. The system 204 has a screen 107 and a mast 50 with a base 51.

[0134] The support element 2 of the umbrella 107 is mounted displaceably above the mast 50, so that the position of the umbrella 107 on the mast 50 can be changed depending on the incidence of sunlight. The position of the support element 2 on the mast 50 can be changed by operating a central slider 54, which is rigidly or integrally connected to the support element 2.

[0135] The support element 2 and the mast 50 have the same arched shape, so that the support element 2, in its lowest position, can essentially completely accommodate the mast 50. The umbrella 107 is then oriented essentially vertically and can thus provide efficient shading or wind protection when the sun is low (e.g., in the evening or morning hours).

[0136] Independently of the displaceability of the support element 2 on the mast 50, the support element 2 in turn has a slider 5 for opening or closing the umbrella 107.

[0137] In Fig. 12 2 shows a system 205 according to a sixth embodiment of the invention in a partially open schematic side view. The system 205 comprises a screen 108, a mast 50 with a base 51, and a mast slider 54 guided on the mast 50.

[0138] The support element 2 of the umbrella 108 is connected to the mast slider 54 via a joint 52 in a rotatable and tiltable manner, so that by changing the position of the mast slider 54 on the mast 50, both the height and the tilt position of the umbrella 108 can be adjusted, particularly in relation to each other. This allows the umbrella to be adjusted according to the respective sun position to achieve optimal shading.

[0139] The support element 2 of the umbrella 108 is connected or coupled to the mast 50 via a rod 55. By moving the mast slider 54 on the mast 50, the tilt position of the umbrella 108 is then adjusted accordingly, so that the angle of inclination of the umbrella 108 can be adjusted. A crank 56 is also provided on the mast slider 54 to enable convenient opening or closing of the umbrella 108 without having to reach the umbrella 108 itself, which significantly improves ergonomics, particularly with large umbrellas (since the slider 5 of the umbrella 108 is generally out of reach of a person). The crank 56 is kinematically connected to the slider 5 of the umbrella 108 via a cable or a belt, although this is not shown in detail in the figures.

[0140] In the umbrella 108, the mast 50 and the support element 2 are designed in a less curved arch shape (compared to the system 204), with the spokes 3.1, 3.2 extending straight from the upper side 6 of the support element 2 toward the underside 17. The spokes 3.1, 3.2 thereby define an imaginary plane containing the lower edge 16 of the umbrella cover 1.

[0141] In Fig. 13 a system 206 according to a seventh embodiment of the invention is shown in a partially exploded schematic view.

[0142] The system 206 is equivalent to the system 205 from Fig. 12 constructed with an umbrella 109, a mast 50 and a base 51, whereby reference is made to the above explanations.

[0143] The screen 109 has a support element 2 with a substantially identical curvature or a substantially identical arc radius as the screen 108 Fig. 12However, spokes 3.1, 3.2 are not straight and do not span a plane, but rather form an acute angle, so that the umbrella cover 1 is stretched like a roof over the supporting element 2.

[0144] In Fig. 14 A system 207 according to an eighth embodiment variant with an umbrella 110 is schematically shown. The system 207 has a straight mast 50 with a base 51. The support element 2 of the umbrella 110 is also straight. The slider 5 for opening and closing the umbrella 110 is mounted on the support element 2 and can in turn be operated via the crank 56. The support element 2 is in turn rotatably connected to the mast slider 54 on the mast 50 via a joint 52.

[0145] In Fig. 15A system 208 according to a ninth embodiment variant with an umbrella 111 is schematically illustrated. The system 208 again has a mast 50 with a base 51. However, unlike the previously illustrated systems 204-207, the support element 2 of the umbrella 111 is rigidly connected to the mast 50 via an angle 57, so that the support element 2 protrudes substantially horizontally from the vertical support element 2. Preferably, the support element 2 has a slight inclination relative to the horizontal to allow water to drain away.

[0146] The spokes 3.1, 3.2 of the umbrella 111 protrude at a slight angle relative to the support element 2. This results in a nearly flat umbrella cover 1. The umbrella can be opened and closed via the slider 5 on the support element 2, which is connected to the crank 56. The slider 5 is in turn kinematically connected to the crank 56, thus enabling convenient remote control for opening and closing.

[0147] In Fig. 16 A system 209 according to a tenth embodiment variant with a canopy 112 is shown in a partially open view. As previously explained for system 208, the support element 2 of the canopy 112 is rigidly connected to the mast 50 via an angle bracket 57.

[0148] The system 209 differs from the previously shown system 208 only in that the support element 2 of the umbrella 112 has a curvature, and the spokes 3.1, 3.2 protrude at a larger angle of attack relative to the support element and form a plane, so that again a roof-shaped umbrella cover 1 results.

[0149] For further features, please refer to the above description of system 208.

[0150] In Fig. 17 a system 210 according to an eleventh embodiment is schematically shown, which comprises two umbrellas 113, 114 arranged around a central mast 50.

[0151] The support elements 2 of the umbrellas 113, 114 are connected to the mast slider 54 via joints 52 so that they can rotate and tilt, with the support elements 2 being oriented in opposite directions around the mast 50. Thus, a first umbrella 113 is directed to the left, and a second umbrella 114 opposite is directed to the right. The mast slider 54 is freely movable on the mast 50, allowing the height of the umbrellas 113, 114 to be adjusted.

[0152] The umbrellas 113, 114 are designed to be mirror-symmetrical and are connected to the mast 50 via a rod 55 in order to enable height adjustment and / or tilting of the individual umbrellas 113, 114.

[0153] To open and close the umbrellas 113, 114, they each have a slider 5 guided on the support element 2. For a description of the opening and closing mechanism, reference is again made to the above description using umbrellas 100 and 101.

[0154] As shown in the partially opened view of the Fig. 17 As can be seen, the sliders 5 of the umbrellas 113, 114 can each be operated separately. This enables a particularly flexible system 210 in which either one or two umbrellas 113, 114 can be opened.

[0155] At least one central crank 56 is also provided on the mast 50, which is kinematically connected to the sliders 5 of the umbrellas 113, 114 to enable convenient opening and closing of the umbrellas 113, 114. The crank 56 can optionally be coupled to the sliders 5 of both umbrellas 113, 114—for example, by means of a rope or a belt—which, however, is not shown in detail in the figures. Alternatively, the crank 56 can also be optionally connected to the slider 5 of the first umbrella 113 or the slider 5 of the second umbrella 114 to enable separate opening and closing of the umbrellas 113, 114.

[0156] In Fig. 18A system 211 according to a twelfth embodiment is shown in a schematic axonometric view. Reference is made to the above explanations regarding the system 210 in Fig. 17 which are also applicable in an analogous manner to the 211 system.

[0157] The system 211, in turn, has four umbrellas 115, 116, 117, 118, which are arranged clockwise around the mast 50, with the support elements 2 of the umbrellas 115, 116, 117, 118 being connected to the mast 50 and each forming an angle of 90° to one another. The umbrella covers 1 of all umbrellas 115, 116, 117, 118 thus form a four-leaf clover when opened (when viewed from above). The umbrella covers 1 are spaced apart from one another and limited to the individual umbrellas 115, 116, 117, 118.

[0158] The sliders 5 of all four screens 115, 116, 117, 118 are - as previously shown by Fig. 17mentioned - kinematically connected with cranks 56. In the illustrated embodiment, a crank 56 is provided for each umbrella 115, 116, 117, 118, with which the slider 5 of the respective umbrella 115, 116, 117, 118 can be operated. Separate opening and closing of the umbrellas 115, 116, 117, 118 is thus possible, creating a particularly flexible system for protection against the effects of weather that can be adapted to the respective conditions.

[0159] According to a further embodiment, which is not shown in detail in the figures, the screens 115, 116, 117, 118 can also be opened and closed together by a crank 56.

[0160] In the Figs. 19, 20 and 21 Finally, a system 212 according to a thirteenth embodiment is shown in different views, which is analogous to the systems 210 and 211 in the Figs. 17 and 18and has 4 screens 119, 120, 121, 122. Reference is therefore again made to the above explanations regarding the systems 210 and 211 in the Figs. 17 and 18 which are also applicable in an analogous manner to the 212 system.

[0161] Fig. 19 shows a view from the bottom of the system 212, whereby the supporting elements 2 and the sliders 5 mounted thereon, as well as the rods 10.1, 10.2 of the individual umbrellas 119, 120, 121, 122 connected to the spokes 3.1, 3.2 and the sliders 5 are visible.

[0162] Fig. 20 shows a side sectional view through the system 212, in which the mechanics of the system 212, in particular the articulated connection of the umbrellas 119, 120, 121 via rods 55 on the top of the mast 50, is visible.

[0163] Fig. 21Finally, an axonometric view from above of system 212 with the four umbrellas 119, 120, 121, 122 is shown, with the umbrella covers 1 of the four umbrellas 119, 120, 121, 122 taking on the shape of a four-leaf clover when opened. In contrast to the umbrellas 115, 116, 117, 118 of system 211, the supporting elements of the umbrellas 119, 120, 121, 122 are straight and point slightly upward when opened, resulting in a funnel-like shape.

[0164] The four umbrellas 119, 120, 121, 122 are arranged clockwise around the mast 50, with the support elements 2 forming an angle of 90° to each other.

[0165] The articulated connection of the umbrellas 119, 120, 121, 122 by means of rods 55 on the upper side of the mast 50 allows the umbrellas 119, 120, 121, 122 to be tilted relative to the vertical direction. In particular, this enables the entire system 212 to be folded by moving the mast slider 54 from an upper (open) position to a lower (folded) position. The umbrellas 119, 120, 121, 122 then fold upwards into a position resting against the mast 50 (when the individual umbrellas 119, 120, 121, 122 are no longer opened via their sliders 5, but are also brought into the closed state).

[0166] In addition, the umbrella covers of the four umbrellas 119, 120, 121, 122 are connected to each other, so that a single, continuous umbrella cover 1 stretches over all umbrellas 119, 120, 121, 122 and forms a closed umbrella surface. The umbrella surface can also have a recess centrally around the mast 50, for example, to allow rainwater to drain away.

[0167] To open and close the umbrellas 119, 120, 121, 122, the sliders 5 can again be operated via a crank 56.

[0168] According to an embodiment variant, which is not shown in detail in the figures, the sliders 5 and the mast slider 54 or the rods 55 can be mechanically coupled, so that when the system 212 is opened or closed by moving the mast slider 54, the individual screens 119, 120, 121, 122 are also opened or closed together. List of reference symbols

[0169] 1 Umbrella cover 2 Supporting element 3.1 First spoke 3.2 Second spoke 4 Central guide 5 Slider 6 Top 7 Joint 8 Rotation axis 9 Angle 10.1 First rod 10.2 Second rod 11 Closed position 12 Open position 13 First position 14 Second position 15.1 First edge guide 15.2 Second edge guide 16 Edge of the umbrella cover 17 Bottom 18 Spacer 19 Free edge of the umbrella cover 20 Free area of ​​the spoke 21 Retaining device 22 T-slot 23 Locking screw 24 Ball joint 25 Angle of attack 50 Mast 51 Base 52 Joint 53 Common supporting element 54 Mast slider 55 Rod 56 Crank 100 to 122Screen (according to different design variants) 200 to 212System (according to different design variants)

Claims

1. Parasol, in particular a flat parasol, having a parasol cover (1) for protection against the influences of the weather, a support element (2) with a central guide (4) and a slider (5), displaceably mounted on the central guide (4) being displaceable from a first position (13) into a second position (14) thereby transferring the parasol (100 - 122) from a closed state (11) into an open state (12), a pivotable first spoke (3.1) hingedly connected to the support element (2) and a first rod (10.1) connected to the first spoke (3.1) and the slider (5), characterized in that the parasol cover (1) has at least one first edge guide (15.1) in which the first spoke (3.1) is guided displaceably along its longitudinal direction.

2. Parasol according to claim 1, characterized in that the first spoke (3.1) has a loose portion (20) at its lower end which projects out of the lower end of the first edge guide (15.1) in the closed state (11) of the parasol (100 - 122), and wherein in particular the loose portion (20) of the first spoke (3.1) is located within the first edge guide (15.1) in the open state (12) of the parasol (100 - 122).

3. Parasol according to claim 1 or 2, characterized in that the first spoke (3.1) - has a retaining means (21) at its lower end, and / or - follows a curved path along its longitudinal direction in the open state (12) of the parasol (100 - 122) and follows an essentially straight line in the closed state (11) of the parasol (100 - 122), and / or - is connected to an upper end (6) of the support element (2) via a joint (7), the joint (7) in particular being a flat rotary joint, and / or - is designed as an elastic rod.

4. Parasol according to one of claims 1 to 3, characterized in that the first edge guide (15.1) is designed as a guide tunnel or guide tube in the parasol cover (1).

5. Parasol according to one of claims 1 to 4, characterized in that the lower end of the first edge guide (15.1) is connected to the support element (2) via a first spacer (18), which is formed in particular by a free edge (19) of the parasol cover (1).

6. Parasol according to one of claims 1 to 5, characterized in that the parasol cover (1) and the first edge guide (15.1) have a recess (26) in the region of the connection between the first rod (10.1) and the first spoke (3.1).

7. Parasol according to one of claims 1 to 6, characterized in that the first rod (10.1) is connected to the first spoke (3.1) and the slider (5) via a joint (24) in each case.

8. Parasol according to one of claims 1 to 7, characterized in that the parasol (100 - 122) has a second spoke (3.2) connected to the support element (2) and a second rod (10.2) connected to the second spoke (3.2) and the slider (5), wherein the parasol cover (1) has a second edge guide (15.2) in which the second spoke (3.2) is guided displaceably along its longitudinal direction, and wherein in particular - the first spoke (3.1) and the second spoke (3.2) are arranged mirror-symmetrically to one another around the support element (2), and / or - the first spoke (3.1) and the second spoke (3.2) have the same angle of attack (25) relative to the support element (2), and / or - the axes of rotation (8) of the joint (7) between the first spoke (3.1) and the support element (2) and / or between the second spoke (3.2) and the support element (2) are tilted by the angle of attack (25) relative to the longitudinal extension (27) of the support element (2) on its upper side (6), and / or - the parasol cover (1) extends between the first spoke (3.1) and the second spoke (3.2).

9. Parasol according to one of claims 1 to 8, characterized in that the support element (2) is curved along its longitudinal direction.

10. System comprising at least one parasol (102, 103, 104, 105, 107, 108, 109, 110, 111, 112, 113, 115, 119) according to one of claims 1 to 9 and a mast (50), wherein the support element (2) of the parasol (102 - 122) is connected to the mast (50), in particular rotatably and / or pivotably.

11. System according to claim 10, characterized in that the mast (50) has a mast slider (54) which is connected to the slider (5) of the parasol (102, 103, 104, 105, 107, 108, 109, 110, 111, 112, 113, 115, 119) via a rod (55), wherein the slider (5) in the central guide (4) of the parasol (102, 103, 104, 105, 107, 108, 109, 110, 111, 112, 113, 115, 119) can be displaced from the first position (13) into the second position (14) by displacing the mast slider (54) on the mast (50).

12. System according to claim 10 or 11, characterized in that the system (200 - 212) comprises at least one further parasol (106, 114, 116, 117, 118, 120, 121, 122) according to any one of claims 1 to 9, wherein the support element (2) of the further parasol (106, 114, 116, 117, 118, 120, 121, 122) is connected to the mast (50).

13. System according to claim 12, characterized in that the mast (50) and / or the support elements (2) of the parasol (102, 103, 104, 105, 107, 108, 109, 110, 111, 112, 113, 115, 119) and of the further parasol (106, 114, 116, 117, 118, 120, 121, 122) are formed in one piece.

14. Use of a parasol (102 - 122) according to any one of claims 1 to 9 as a sunshade, as a vertical sunshade, as a sun sail, as a windbreak, as a rain screen or as an advertising banner.

15. Use of a system (200 - 212) according to any one of claims 10 to 13 as a sunshade, as a vertical sunshade, as a sun sail, as a windbreak, as a rain screen or as an advertising banner.