Wing for sports with wind-powered movement

Abstract

The invention relates to a hand-guided wing (1) for sports with wind-powered movement, comprising at least one handle element (11) for manual handling and a support structure (2) which, in the use position, is used to form a cavity (3) around which air flows and stretches a sailcloth (4). The solution described is characterised in that, in the use position, the sailcloth (4) surrounds the cavity (3) at least in regions, and the support structure (2) has a mast (5) and a plurality of support elements (6) which are distributed in the interior of the cavity (3) and in the longitudinal direction of the cavity (3), each have at least one guide (7) for receiving the mast (5) and can be shifted, together with the sailcloth (4), relative to the mast (5) from the use position into a non-use position.

Description

[0001] Wing for sports with wind-powered propulsion

[0002] The invention relates to a wing for wind-powered sports on water or land, in which the wing is manually guided via holding elements. The wing has a supporting structure which, in its operating position, serves on the one hand to form a cavity around which air flows and on the other hand to stretch a sailcloth.

[0003] Numerous sports are known that utilize wind to propel an athlete on water or land. The invention described below relates to a wing for performing such sports, which can be held by retaining elements and moved into the desired position. The wing can be used on land in combination with a skateboard or on water with a board, surfboard, or foilboard, where it is held and moved as needed by a person standing on the board.

[0004] In recent years, wing surfing, using suitable watersports boards, has gained popularity. In this sport, the surfer stands on a board and holds a wing, which is otherwise detached from the board. Depending on the wind direction, wind strength, waves, desired direction of travel, and maneuvers the surfer wishes to perform, the wing is held in the hands and its orientation adjusted as needed. The boards used often feature foils or hydrofoils attached to the underside of the board, which provide lift during the ride, allowing the board to lift off the water's surface, at least temporarily, and enabling relatively high speeds even in light winds.

[0005] The known wings have at least partially inflatable support structures, whose air chambers are designed with or without an additional tube. The main components of these wings are a leading edge tube, the upwind side of which forms a leading edge during flight, a strut extending aft on the leeward side of the leading edge tube and perpendicular to it, and a sail, also called a canopy, which is stretched by the leading edge tube and the strut. Typically, the leading edge tube and the strut form the inflatable support structure with corresponding cavities that stretch the sail or canopy in its operational position. Such a wing is known, for example, from WO 2023 / 170 627 A1. The wing described in this document also has an inflatable support structure for stretching a sail and is distinguished primarily by its removable handles that can be attached as needed.

[0006] Furthermore, the applicant, North Kiteboarding Australasia Ltd., has developed the "Nova" wing, which features an inflatable support structure with a curved leading edge and a strut extending from the leading edge to the rear, tensioning a sail. Available in various sizes, the wing has handles attached to the underside of the strut to adjust the wing's orientation to the wind and a handle on the upwind side of the leading edge for easy towing while surfing waves.

[0007] In the development of wings of this type with an inflatable support structure, as known from the prior art, it is always a challenge to design the support structure in such a way that, on the one hand, it can be easily folded when deflated and has the smallest possible packed size, and on the other hand, it is as rigid as possible during use of the wing, thus ensuring effective wind utilization, good responsiveness, and the desired forward thrust for the surfer. However, setting up such wings always requires inflating the air chambers, which always takes a certain amount of time and necessitates carrying a pump. Furthermore, the stiffness and aerodynamics of such wings depend on the pressure with which the air chambers are filled.Furthermore, the airtightness of the individual air chambers must be ensured, which therefore at least partially has additional inflatable air tubes, although in addition to the extra weight, there is sometimes the problem that chafing occurs between the outer skin and the tube of the wing.

[0008] Starting from known wings with their at least partially inflatable support structure, one object of the invention is to provide a support structure that is comparatively lightweight and, at the same time, has a particularly small pack size when not in use. Simultaneously, the structural design of the wing should be improved compared to known solutions with regard to stiffness and aerodynamics, and should offer the possibility of easily providing different wing profiles, in particular to utilize the energy contained in the oncoming wind as effectively as possible. Furthermore, the wing should be quick and easy to assemble, ideally without tools. The aforementioned object is achieved with a wing according to claim 1. Advantageous embodiments of the invention are the subject of the dependent claims and are explained in more detail in the following description with partial reference to the figures.

[0009] The invention relates to a handheld wing for wind-powered sports, comprising at least one handle for manual operation and a support structure which, in its operating position, forms a cavity exposed to airflow and stretches a sailcloth. A key feature of such a wing is the direct power transmission between the user and the wing, with the user holding the wing by at least one handle, such as a grip, loop, line, and / or boom. Specifically, no transmission elements, such as pulleys or gears, are used. By appropriately manipulating such a wing, the user can utilize forward and upward forces to propel themselves on land or water, particularly with a watersports board.The wing according to the invention is characterized in that, in a working position where the sailcloth is stretched, it surrounds at least part of the cavity, wherein the supporting structure has a mast and a plurality of support elements distributed inside the cavity and along its longitudinal axis, each of which has at least one guide for receiving the mast and, together with the sailcloth, is displaceable relative to the mast from the working position to a non-working position. The essential aspect of the invention is thus that the sailcloth itself surrounds the cavity and, with the aid of suitable support elements arranged at least partially inside the cavity, a shaped body formed at least partially by the sailcloth is created, which can advantageously generate forward and lift forces.Such a shaped body, which can be guided by the user via suitable handles and is at least partially formed by the sailcloth, is therefore designed in the manner of an airfoil around which airflow occurs during its use. The shape and surface contour are selected such that, due to locally varying flow parameters at the surface, specific forward and / or upward forces can be generated. Furthermore, it is important for the invention that support elements are provided which, together with a mast that, in its operating position, is preferably arranged perpendicular to the main plane of extension of the support elements and within the cavity surrounded by the sailcloth, form a comparatively rigid support structure for the sailcloth to be stretched.The support elements and the mast ensure that, in the wing's operating position, the sailcloth is tensioned in the position required to create the appropriate cavity and the necessary outer contour of the wing. As will be explained in more detail below, it is also possible to fold a wing designed according to the invention into a particularly small and space-saving position when not in use, and thus, for example, to store it in a bag or backpack. Furthermore, due to the support structure formed by the mast and support elements located within the wing's cavity, it is not necessary to inflate parts of the wing or fill a cavity with air during the transition from an operating to an operating position, i.e., during the wing's setup.

[0010] Rather, the wing according to the invention, in its operating position, is designed like an airfoil with airfoils, wherein the sailcloth surrounding the cavity forms the surface exposed to the airflow during use. The hand-held wing according to the invention is thus characterized in its operating position by its special aerodynamic properties and comparatively low weight. Furthermore, both assembly and disassembly are quick and easy, since no inflation is required for assembly and, during disassembly, only the sailcloth together with the support elements needs to be moved along the mast into a non-operating position. Moreover, the wing can be easily stored in its non-operating position, for example in a bag or backpack, requires little storage space, and is resistant to damage.

[0011] According to a particular embodiment of the invention, the sailcloth is made from a non-woven composite material, such as Dyneema® Composite Fabric (DCF) or Cuben Fiber (CTF 3). Preferably, the sailcloth is a laminated fabric made of plasma-treated monofilaments comprising ultra-high molecular weight polyethylene (IIHMWPE), polyester, and optionally other materials. Such composite materials are distinguished primarily by the fact that they exhibit high strength values ​​even in particularly thin versions, thus enabling the production of a comparatively lightweight sailcloth that is simultaneously exceptionally durable and strong.

[0012] According to a particular embodiment of the invention, a non-woven, fiber-containing composite material is used for the sailcloth. In this context, it is conceivable to produce the desired shape of the sailcloth by gluing or welding together at least two suitably designed sailcloth segments. It is advantageous if the individual sailcloth segments overlap at least partially in at least one joint area. In a particular embodiment of the invention, at least one of the support elements is attached to the mast in the operating position. By appropriately attaching at least one of the support elements, which together with the mast are located in the cavity of the wing and surrounded by the sailcloth, a particularly stable support structure is created in the operating position.According to a particular embodiment of the invention, the attachment and preferably also the detachment of the at least one support element to the mast can be achieved without tools, for example by inserting it into a suitable recess. If the wing is to be moved from the operating to the non-operating position after use, such an attachment of a support element to the mast can thus preferably be detached again without tools.

[0013] In a further specific embodiment of the invention, in the operating position, the two outermost, opposing support elements of a plurality of support elements are attached to the mast, particularly in the region of the mast ends. According to this particular embodiment, the support elements, at least the two outer ones of which are attached to the mast, which preferably runs transversely to the main extension plane of the support elements and through their mast guide, thus form a support structure to which the sailcloth is attached, at least partially, and which, in the operating position, stretches the sailcloth in such a way that the desired shape, in particular an airfoil shape, is produced.Advantageously, in the operating position, the mast and the support elements are in a defined position relative to each other, and the individual support elements are arranged at the required distance from each other. Preferably, the individual support elements vary at least partially with regard to their size, in particular with regard to their outer circumference, so that the cavity in which the support elements are located with the mast and which is surrounded by the sailcloth has the desired shape or geometry.

[0014] It is particularly advantageous if the support elements are designed in the form of an airfoil cross-section in their main plane of extension. This ensures that, especially once the sailcloth is attached to the outer circumferential surfaces of the support elements, the sailcloth is taut in the desired shape when in use. To ensure the required stiffness of the individual support elements, a specific embodiment of the invention provides that the support elements have stiffening elements arranged in a truss-like configuration. In this context, it is advantageously conceivable that at least one of the support elements has a frame element that forms the circumferential boundary of the support element and preferably encloses a cavity, within which a plurality of struts are arranged in the form of a truss. These struts then serve as stiffening elements of the support element.Compared to fully formed load-bearing elements, this allows for a significant reduction in weight without compromising the stiffness of the load-bearing element.

[0015] It is advantageous if the sailcloth is attached, at least partially, to the outer circumference of the support elements. In this context, it is conceivable that the attachment only occurs when the wing is moved from its unused to its operational position. However, as will be shown, it is particularly advantageous if the sailcloth is attached to the support elements around its circumference, at least partially, so that the support elements and the attached sailcloth can be folded together. This allows for particularly easy assembly and disassembly of a wing.

[0016] In this context, it is further advantageous if the guide for the mast, which the support elements have, is designed such that, in the operating position, this guide surrounds at least a portion of the mast's cross-section. Preferably, the mast can be slid into or through the guide of at least one support element, at least in part. Likewise, a specific embodiment of the invention provides that, in the operating position, the mast is attached to the two outer support elements in the area of ​​the guide. Again, it is advantageous if such attachment of the mast to a support element, in particular to the two outer, opposing support elements in the operating position, can be carried out without tools.

[0017] In a particular embodiment, the mast has a rectangular, in particular a square, cross-sectional profile and is accordingly to be inserted into or even through a guide with a rectangular or square cross-section of a support element. In this context, a specific further development of the invention provides that the mast, when being moved from a non-use position to the use position, i.e., during the assembly of the wing according to the invention, is movable in the longitudinal direction relative to the support elements and transversely to a main extension plane of the support elements. Advantageously, it is provided that during the assembly of the wing, the mast is pushed through the individual guides of the support elements and the two opposite mast ends are attached to the respective outer support elements, for example, inserted, so that the mast can only be moved out of the guide in one direction.The support element can be pulled out. In this way, the supporting structure, consisting of the mast and support elements, as well as the sailcloth (at least partially attached to the support elements), is tensioned in its operational position. The shape of the cavity surrounded by the sailcloth, and ultimately of the wing itself, is determined by the shape of the mast and support elements, as well as the individual spacing between them. Accordingly, a manufacturer of such wings can adapt the shape to specific requirements or offer a wide variety of wings with different dimensions and shapes.

[0018] During the assembly of such a wing, the user simply needs to slide the mast through the guides of the individual guide elements and attach the opposite mast ends to the outer support elements or insert them into the designated receptacles. This allows for the relatively simple creation of a wing with a cavity surrounded by a taut sailcloth, in which the support elements and the mast are arranged, without the need to inflate or pump up the hollow structure, i.e., introduce air.

[0019] According to a specific embodiment of the invention, the mast has at least two connectable mast sections. Alternatively or additionally, it is conceivable that the mast is telescopically designed with at least two mast sections movable relative to each other in the longitudinal direction. During the assembly of a correspondingly designed wing according to the invention, the mast is thus also moved from a non-use position to a use position, in this case by creating the ready-to-use mast from at least two mast sections by inserting or sliding them together.

[0020] Essential to this particular design is that the mast can be either disassembled or collapsed for storage. In conjunction with multiple support elements, to whose outer circumference the sailcloth is at least partially attached and which incorporate guides for the mast, this ensures a comparatively small pack size for the wing when not in use. Furthermore, it allows for relatively simple and quick wing setup, particularly without the need to inflate air chambers or tubes.

[0021] In a further particular embodiment of the wing according to the invention, the sailcloth is tubular. In this context, it is also conceivable that a plurality of support elements are attached to the sailcloth, at least partially, within the tubular sailcloth. A wing designed in this way, with a tubular sailcloth and support elements arranged therein, can be moved from a non-use position to a use position simply by moving the mast through the guides of the support elements and preferably attaching its opposite ends to the outer support elements and / or to the sailcloth. As soon as the mast is in its final position and at least indirectly attached to the outer support elements, the sailcloth is in the desired stretched position.To dismantle the wing, only the fastenings between the mast ends and the outer support elements and / or the sailcloth need to be loosened, the mast at least partially pulled out of the guides, and the tubular sailcloth with the support elements arranged inside it folded or pushed together.

[0022] According to a further embodiment of the invention, at least one loop and / or handle is attached or attachable to the sailcloth and / or to at least one support element. Such loops or handles are provided for handling and / or carrying or moving the wing during use. Alternatively or additionally, it is conceivable that, at least in the operating position, a boom arranged at least nearly transversely to the mast is attached to the sailcloth and / or to at least one support element. It is particularly advantageous if a corresponding boom, or at least brackets to which a boom can be attached, is attached to at least one support element or even formed integrally with it, so that a comparatively strong and rigid connection exists between the support structure formed by the support elements and the boom.In this case, it is particularly advantageous if a connecting element linking the support element to the boom's retaining element extends through the sailcloth. While it is also beneficial for the sailcloth to lie close to the connecting element or even be attached to it, this is not strictly necessary, as the cavity of the wing designed according to the invention does not need to be airtight. This, incidentally, represents a further advantage of the wing designed according to the invention. Since it does not have a cavity to be filled with air, a wing can be used even if the sailcloth has holes.

[0023] The invention will now be explained in more detail with reference to specific embodiments and figures, without limiting the general concept of the invention. The figures show:

[0024] Fig. 1 : perspective view of a wing designed according to the invention with transparently depicted sailcloth in the operating position;

[0025] Fig. 2: Perspective view of a wing designed according to the invention with

[0026] Tree diagonally from below into working position;

[0027] Fig. 3: Side view of a wing designed according to the invention with a tree in

[0028] Operating position; Fig. 4: Front view of a wing designed according to the invention with boom in operating position;

[0029] Fig. 5: Top view of a wing designed according to the invention in the operating position;

[0030] Fig. 6: Wing constructed according to the invention in at least a partially disassembled state

[0031] State as seen from an oblique top view;

[0032] Fig. 7: Wing constructed according to the invention in at least a partially disassembled state

[0033] State as seen from an oblique angle from below;

[0034] Fig. 8: Wing designed according to the invention in a disassembled state in a view obliquely from above as well as

[0035] Fig. 9: Wing designed according to the invention in its disassembled state in a view obliquely from below.

[0036] Fig. 1 shows a perspective view of a wing 1 designed according to the invention, viewed obliquely from above in its operating position. The wing 1, shown transparently, has a total of seven support elements 6, each of whose outer circumference has an airfoil profile and which, in the operating position, form a support structure 2 for tensioning the sailcloth 4. The support elements 6 each accommodate a mast 5 in guides 7 and, together with the mast 5 arranged transversely to the support elements 6 and in the guides 7, form a support structure 2 that tensions a sailcloth 4. In the operating position of the wing 1, the sailcloth 4 is tensioned in such a way that it surrounds a cavity 3 in which the support elements 6 and the mast 5 are located.

[0037] A key feature of the wing 1 shown in Fig. 1 is that, depending on the design of the individual support elements 6, particularly their outer circumference and size, virtually any airfoil profile can be produced. According to the illustrated embodiment, the individual support elements 6 are attached to the sailcloth 4 at their outer circumference. Furthermore, the mast 5 is received in individual guides 7 of the support elements 6 and fastened in the area of ​​the guides 7 of the two outer support elements 6a, 6b in such a way that the fastening can be carried out without tools, allowing the support elements 6 with the attached sailcloth 4 to be positioned in the desired position and orientation, and the sailcloth 4 to be stretched.

[0038] The individual support elements 6 have a surrounding frame, forming a profile in which truss-like stiffening elements 10 in the form of stiffening struts and the guide 7 for the mast 5 are located. According to the embodiment shown in Fig. 1, the mast 5 has a square cross-sectional profile, which is arranged in guides 7 with a corresponding square cross-section. During the assembly of the wing 1, the mast 5 is successively pushed through the individual guides 7 of the support elements 6 and attached at its opposite mast ends 5a, 5b to the two outer support elements 6a, 6b by means of suitable fastening elements 8, so that the sailcloth 4 is taut.

[0039] Fig. 2 shows the wing 1, already described in Fig. 1, with its components in a perspective view from below. The wing 1 thus again has a support structure 2 formed from a mast 5 and support elements 6, which stretches a sailcloth 4. The mast 5 and support elements 6 are arranged inside the cavity 3, which is at least partially enclosed by the sailcloth. The sailcloth 4 is attached to the outer sides of the circumferential frame of the support elements 6 and has two sailcloth segments welded together at the luff and leech. It is also conceivable that the sailcloth 4 could be manufactured in one piece or from more than two suitably shaped sailcloth segments.

[0040] In addition to the components described above, the Wing 1 also has a handle element 11 in the form of a support bar 12, which serves for the manual handling of the Wing 1 during use. The handle element 11 has two opposing brackets 13, which in turn are firmly connected to the central support element 6 or are formed integrally with it. The support bar 12 extends between the two brackets 13 and is held by the user during use of the Wing 1 according to the invention and used for the appropriate movement of the Wing 1. It is also conceivable that at least one loop and / or handle is attached to at least one of the support elements 6 and / or to the sailcloth 4 as a handle element 11, which also serves for handling the Wing 1 during use.

[0041] Fig. 3 shows a side view of a wing 1 designed according to the invention in its operating position. It is clearly visible that the wing 1 is designed in the form of an airfoil, the supporting structure 2 of which is formed from individual, differently dimensioned support elements 6 and a mast 5 projecting through the guides 7 of the support elements 6, and which stretches a sailcloth 4 that surrounds the cavity 3 of the wing 1 at least on the upper and lower sides. Below the wing 1, extending in the main direction of airflow around the wing 1, is the support rod 12, which serves as a handle element 11. The support rod 12 is attached to the central support element 6 of the wing 1 by two brackets 13 arranged opposite each other at the ends of the support rod 12, or is formed integrally with the central support element 6.

[0042] Furthermore, Fig. 4 shows a front view of the leading edge of a wing 1 designed according to the invention, as seen from the airflow in its operating position. This view clearly shows that the mast 5, and thus the wing 1, is V-shaped in a plane perpendicular to the support elements 6, such that the mast 5 slopes slightly from the center outwards towards the upper surface of the wing 1. The wing 1 thus takes the form of an airfoil with a support structure 2 formed by the mast 5 and the support elements 6. Depending on the design and arrangement of the individual support elements 6 and the shape of the mast 5, wings 1 with virtually any aerodynamically optimized geometry can be produced. Crucially, in the case of the wing 1 designed according to the invention, it is not necessary to fill it with air or inflate individual chambers to bring it into an operating position.

[0043] Fig. 5 shows a top view of a wing 1 designed according to the invention with a support rod 12 in its operating position. Of particular interest are the shape of the luff and leech, between which the individual support elements 6 extend in the main direction of airflow around the wing 1. The mast 5, which runs transversely to the individual support elements 6 and through suitable guides 7 in the support elements 6, is attached to the two outer support elements 6a, 6b. Advantageously, the mast 5 has a structure with a stop at its mast ends 9 as a fastening element 8, so that the mast ends 9 can each be inserted into the guide 7 of the outer support elements 6a, 6b and bear against the inside of the two support elements 6a, 6b in the area of ​​the guides 7.The mast 5, arranged transversely to the support elements 6, thus spans the individual support elements 6 in its longitudinal direction, the distance between the individual support elements 6 being determined by their attachment to the sailcloth 4 in the area of ​​their outer circumference.

[0044] Figure 6 shows a Wing 1 designed according to the invention in a non-use position, and here in a partially disassembled state, in a top-down oblique view. The Wing 1 is in this position temporarily during assembly or disassembly. It is clearly visible that the mast 5 is still within the guides 7 of the individual support elements 6, but that these, together with the tubular sailcloth 4 attached circumferentially to the individual support elements 6, have been pushed together in the center. If a Wing 1 designed according to the invention is to be moved from the use position to the position shown in Figure 6, only the mast ends 9 need to be released from their attachment to the outer support elements 6a, 6b, and the support elements 6 need to be moved longitudinally towards the center of the mast.

[0045] In addition, Fig. 7 shows a wing 1 designed according to the invention in a partially disassembled state in a view taken obliquely from below. In this view, the support rod 12, which serves as a handle element 11, is visible and is connected to the central support element 6 by means of the two opposing brackets 13. Finally, Fig. 8 shows a wing 1 designed according to the invention in a disassembled state in a view taken obliquely from above. According to the embodiment shown, the mast 5 is formed in three parts, with two parts 5a, 5b of the mast 5 being arranged below the folded or collapsed wing 1.

[0046] The mast 5 has a central section 5c and two outer mast sections 5a, 5b, which can be inserted into the central mast section 5c at opposite ends. In the non-use position of the wing 1 shown in Fig. 8, the support elements 6 with the tubular sailcloth 4 have been moved to the center, so that only the central mast section 5c remains in the guides 7 of the support elements 6 and inside the tubular sailcloth 4. The two outer mast sections 5a, 5b have already been pulled out of the opposite ends of the central mast section 5c. The provision of an additional securing element is conceivable here.

[0047] In addition, Fig. 9 shows a wing 1 designed according to the invention in its disassembled state in a view obliquely from below. The support elements 6 with the tubular sailcloth 4 have again been pushed together centrally in the area of ​​the middle mast section 5c, so that the guides 7 of the support elements 6 are only located on the middle mast section 5c. Below the folded wing 1 is the handle 12, which serves as a grip element 11, and whose brackets 13 are attached to the middle support element 5c.

[0048] To achieve the smallest possible pack size, the two outer mast sections 5a, 5b, each with a reduced outer circumference on one side to allow them to be inserted into the middle mast section 5c, are positioned next to the support rod 12. In this way, the folded Wing 1 can be stored, for example, in a bag or backpack.

[0049] The exemplary embodiments demonstrate that a Wing 1 designed according to the invention can be assembled particularly quickly and easily, especially since no filling of hollow chambers with air or inflation is required. Furthermore, a Wing 1 designed according to the invention can achieve a particularly small pack size in a non-use position, making it easy to transport and store. Reference numerals

[0050] 1 Wing

[0051] 2 Supporting structure

[0052] 3 cavities

[0053] 4 sailcloth

[0054] 5 masts

[0055] 5a first mast section

[0056] 5b second mast section

[0057] 5c third mast section

[0058] 6 Support element

[0059] 6a first outer supporting element

[0060] 6b second outer supporting element

[0061] 7 Leadership

[0062] 8 Fastening element

[0063] 9 Mast ends

[0064] 10 stiffening element

[0065] 11 Handle element

[0066] 12 Handrail

[0067] 13 bracket

Claims

Patent claims 1. Hand-operated wing (1) for wind-powered sports, comprising at least one handle element (11) for manual handling and a support structure (2) which, in the operating position, forms a cavity (3) and stretches a sailcloth (4), characterized in that, in the operating position, the sailcloth (4) surrounds at least partially the cavity (3), the support structure (2) has a mast (5) and a plurality of support elements (6) arranged inside the cavity (3) and distributed in the longitudinal direction of the cavity (3), each of which has at least one guide (7) for receiving the mast (5) and, together with the sailcloth (4), can be moved from the operating position to a non-operating position relative to the mast (5).

2. Wing according to claim 1, characterized in that at least one of the support elements (6) is attached to the mast (5) in the operating position by means of a fastening element (8).

3. Wing according to claim 2, characterized in that the fastening element (8) is designed to attach the at least one support element (6) to the mast (5) without tools.

4. Wing according to one of the preceding claims, characterized in that, in the operating position of a plurality of support elements (6), the two outer support elements (6a, 6b) are attached to the mast (5), in particular in the area of ​​the mast ends (9).

5. Wing according to one of the preceding claims, characterized in that the supporting elements (6) are designed in a principal extension plane in the form of a wing cross-section.

6. Wing according to one of the preceding claims, characterized in that the supporting elements (6) have stiffening elements (10) arranged in a truss-like manner.

7. Wing according to one of the preceding claims, characterized in that the support elements (6) are attached to the sailcloth (4) at least partially, in particular on an outer circumference.

8. Wing according to one of the preceding claims, characterized in that the guide (7) in the operating position surrounds a transverse profile of the mast (5) at least partially.

9. Wing according to one of the preceding claims, characterized in that the mast (5) has a rectangular cross-sectional profile.

10. Wing according to one of the preceding claims, characterized in that the mast (5) is movable in the longitudinal direction of the mast relative to the support elements (6) when being transferred from a non-use position to the use position, transversely to a principal extension plane of the support elements (6).

11. Wing according to one of the preceding claims, characterized in that the mast (5) has at least two mast parts (5a, 5b) that can be connected to each other.

12. Wing according to one of the preceding claims, characterized in that the mast (5) is designed telescopically with two mast parts (5a, 5b) that are movable relative to each other in the longitudinal direction of the mast.

13. Wing according to one of the preceding claims, characterized in that the sailcloth (4) is tubular in shape.

14. Wing according to one of the preceding claims, characterized in that a loop suitable as a handle element (11) is attached or attachable to the sailcloth (4) and / or to at least one support element (6).

15. Wing according to one of the preceding claims, characterized in that a support rod (12) suitable as a handle element (11) is attached to the sailcloth (4) and / or to at least one support element (6), the support rod being arranged at least nearly transversely to the mast (5) in the operating position.

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