Textile composite

The textile composite design with reinforcing elements in hem turn-ups addresses the issues of premature damage and high tensile loads by distributing forces evenly and providing protection, enhancing load-bearing capacity and aerodynamic performance.

WO2025219253A1PCT designated stage Publication Date: 2025-10-23BOARDS & MORE GMBH
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Patent Information

Application Number
PCT/EP2025/060046
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-09-10
Filing Date
2025-04-11
Publication Date
2025-10-23

AI Technical Summary

Technical Problem

Existing textile composites used in wings for wing foiling and kites for kitesurfing suffer from premature damage due to high tensile loads, environmental factors, and material fatigue, particularly at seam areas, leading to reduced maneuverability and safety risks.

Method used

A textile composite design that incorporates reinforcing elements within hem turn-ups of textile sections, using a connecting thread to pierce both layers and distribute forces evenly, with optional additional textile sections for protection and flexibility, allowing for symmetrical and asymmetrical configurations.

Benefits of technology

Enhances the load-bearing capacity, reduces environmental damage, and improves aerodynamic performance while facilitating easy repair and storage, ensuring higher resilience and flexibility tailored to specific applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a textile composite comprising: a first textile portion (1) which, at a first connecting portion, has a first hem fold-over with two overlapping layers of the first textile portion; a second textile portion (1) which, at a second connecting portion, has a second hem fold-over with two overlapping layers of a second textile portion; a connecting seam (9, 10) which connects the first and second textile portions along their respective connecting portions by means of a connecting thread; wherein a reinforcing element (8) is introduced between each of the two layers within the first and second hem fold-overs; the connecting thread of the connecting seam penetrates both layers of the first and second hem fold-overs.
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Description

textile composite DESCRIPTION Technical area

[0001] The present invention relates to a textile composite, for example for use in sailing, in particular for use in wings for wing foiling and kites for kitesurfing. Background of the invention

[0002] When manufacturing sails, the task often involves joining textile sections together in a tensile manner.

[0003] Wings for wing foiling and kites for kitesurfing are also traditionally composed of textile panels. Some of these panels are typically joined together to form sheaths, into which inflatable bladders are inserted. Depending on their position and function in the wing or kite, such a sheathed bladder is referred to as a tube or strut. These tubes and struts are pressurized when inflated and thus serve as structural elements of wings and kites.

[0004] The pressurized inflated bladder in wings and kites leads to an enormous tensile load on the connecting seams of the struts or tubes.

[0005] In addition to this constant stress, wings and kites are often subjected to significant forces during wing foiling or kitesurfing, for example, from sudden gusts of wind, challenging maneuvers, and crashes, or even kite crashes. This places additional strain on the already heavily stressed seams.

[0006] The environment in which wings and kites are used also has a damaging effect on the wings and kites, particularly due to salt water and abrasive sand particles. Naturally, these influences also affect the joints, especially the seams. This damaging environment in In combination with other environmental influences, such as strong solar radiation, this leads to material fatigue, which can result in premature damage.

[0007] Figure 1 shows a schematic cross-section of a previously known seam construction in which various reinforcements are used. Such a seam construction attempts to solve the problems mentioned above. Seam tapes are frequently used. These can be used in various positions to achieve different effects. For example, these seam tapes are positioned on the fabric sections before they are sewn together.

[0008] The reinforcing seam tapes are usually glued directly to the textile sections to be joined.

[0009] These reinforced textile sections are then placed on top of each other, for example, at the sections to be sewn and folded together before being sewn at this folded overlap.

[0010] Despite these reinforcements, the stresses mentioned above can cause damage to the seam areas of the wings and kites, which can result in the corresponding seams tearing open.

[0011] Long seams, such as those that seal tubes and struts along their main extension, are particularly subject to high stress and are therefore frequently damaged. A damaged wing or kite can severely reduce maneuverability and, in the worst case, endanger the safety of the athlete. SUMMARY OF THE INVENTION

[0012] An object of the present invention is therefore to improve the resistance of a textile composite.

[0013] To solve this problem, a textile composite according to patent claim 1 and a method for producing such a textile composite according to patent claim 9 are proposed.

[0014] The respective dependent patent claims relate to preferred, particularly advantageous, embodiments.

[0015] According to a first aspect of the invention, a textile composite is provided which connects two textile sections, each of which has a hem turn-up with two overlapping layers of the textile material of the respective textile turn-up, by means of a connecting thread along the respective connecting sections of the textile sections, wherein reinforcing elements are introduced within the hem turn-ups between the two layers of the textile materials of the respective textile sections and the connecting thread pierces both layers of the hem turn-up of the two textile sections to be connected.

[0016] Although the reinforcing elements are not directly connected to one another, it is surprisingly found that such a textile composite according to the invention can be subjected to a significantly higher maximum tensile load than a textile composite which has a band-shaped reinforcing element sewn in.

[0017] Due to the advantageous arrangement of the hem turns, the force can be transferred more evenly to the fabric surrounding the textile composite, thereby achieving the significantly higher load-bearing capacity of such a textile composite.

[0018] Furthermore, this textile composite comprises fewer elements than previously known textile composites. As can be seen, for example, in Figure 1, various reinforcing elements, such as seam tapes (2) and / or additional reinforcing textile sections (4), were incorporated into the textile composite in previous textile composites. Figure 2, which schematically illustrates a preferred embodiment of the invention in cross-section, shows that, in addition to the seam threads, only the textile sections (1) to be joined and the reinforcing elements (7) are processed. It can be seen that this method results in economic advantages through material savings.

[0019] In a particularly preferred embodiment of the textile composite, the reinforcing elements introduced into the hem turn-ups extend along the seam within the hem turn-ups which are closed at least in sections by the connecting thread.

[0020] This embodiment is preferred because the reinforcing elements introduced absorb forces acting on the connecting thread in a particularly advantageous manner and thus influence the seam slippage behavior in a particularly advantageous manner.

[0021] When subjected to stress, the connecting thread can transfer the acting forces particularly effectively to the reinforcement elements. Their alignment distributes the forces effectively across the length of the joint, which is particularly advantageous for point-loaded seams. When subjected to stress, the connecting thread clings to the reinforcement elements instead of cutting into the surrounding fabric as in conventional seams. This prevents, or at least reduces, peak loads in the joint area.

[0022] When using such a textile composite as a closure for a tube and / or a strut in kites or wings, practical tests have shown a particularly high load-bearing capacity that is increased compared to kites and wings manufactured according to the state of the art.

[0023] In a further preferred embodiment, both textile sections are sewn together in a butt-to-butt seam construction. This embodiment results in a particularly advantageous profile of the textile composite. The connection point has a significantly reduced diameter in cross-section compared to the connection point of a prior art textile composite, for example, the one shown in Figure 1.

[0024] This makes the textile composite more flexible than one with a composite area that has a larger cross-sectional diameter, which results in better storage options when used as a composite seam in a kite and / or wing. After use, the kite and / or wing can be folded up, making transport easier. The textile composite with a smaller cross-sectional diameter in the connecting area is exposed to fewer strong forces than a textile composite with a larger cross-sectional diameter in this area. The larger this diameter, the more likely the textile composite is to bend when folded, which can cause damage to the kite and / or wing during transport or storage.

[0025] Since closure seams for tubes and / or struts are often located in areas of kites or wings that are relevant for the flow behavior of the air, the use of this preferred embodiment is particularly advantageous, since a textile composite whose connection area has a smaller cross-sectional diameter compared to seam connections with a larger cross-sectional diameter in the connection area, as is known from the prior art known, protrudes less from the surface of the kite or wing. This smoother surface texture creates significantly less turbulence. Thus, the use of a textile composite of this design in a wing and / or kite has a positive effect on the handling of the wing and / or kite.

[0026] Additionally, the position of the reinforcement elements, or rather the orientation of the overall geometry of the textile composite in relation to the main loading direction, has a beneficial effect. Because this design is symmetrical, the forces are distributed more evenly under load than with an asymmetrical textile composite. In particular, one-sided loads are avoided. These can occur when protruding areas of the textile composite, such as the overlapping seam area in Figure 1, bend to one side.

[0027] In a further preferred embodiment, both textile sections are sewn together in an overlapping seam construction, in which the first and second hem turn-ups are in contact with each other. This type of sewing results in a textile composite in which the hem turn-ups with the inserted reinforcing elements cover the connecting thread in the sewn state.

[0028] As a result, the connecting thread is particularly advantageously protected from environmental influences, such as abrasion by grains of sand. This preferred embodiment can also be used in a wing and / or kite to reduce the damaging effects of the typical applications of wings and / or kites. If a textile composite of this advantageous embodiment is used in a wing and / or kite, then in the loaded state, i.e. while the textile composite is pulled apart orthogonally to its main direction of extension, the connecting thread is covered by the seam folds of the connected textile sections and thus protected from abrasion by particles, such as grains of sand. This has a beneficial effect on the service life of the wing and / or kite.

[0029] Furthermore, this preferred embodiment is advantageous because the seam used can be easily unraveled and sewn with a standard sewing machine. This makes this embodiment particularly advantageous for use in a wing and / or kite. Due to the simple manufacture of this embodiment, repairs to wings and / or kites can be carried out quickly. Since no special sewing machine is required to produce this design, end users, for example, are also able to carry out repairs in their own homes.

[0030] In a further preferred embodiment, at least one side of the connecting seam of the textile composite is covered by a further textile section which is fastened to at least one of the connected textile sections.

[0031] For example, with an additional textile section attached to the inside, this results in a textile composite that makes direct contact with and / or penetration of the connection point (for example, by particles such as grains of sand) more difficult. When used as a closure seam for a tube or strut of a kite or wing, this additional textile section is particularly advantageous in preventing the internal bladder from coming into direct contact with the connection point. This prevents, for example, the bladder from becoming trapped in the connection point during transport, which could place excessive strain on the bladder and lead to premature wear.

[0032] This design also proves advantageous during use of the kite or wing. If the additional textile section is preferably attached to the inside of the kite or wing, the internal, pressurized bladder effectively seals the area of ​​the textile composite with the additional textile section. This prevents, or at least significantly reduces, the penetration of particles and / or water.

[0033] In a further advantageous embodiment of the textile composite, at least one of the reinforcing elements attached to the hem turn-up of the respective textile sections is additionally fixed to the respective textile section.

[0034] This proves particularly advantageous during production, as processing steps can be decoupled. This can refer to a temporal decoupling, but can also, for example, enable spatial decoupling. When using this preferred embodiment, the positioning and insertion of the reinforcement elements is no longer linked to the closing of the hem turn-ups.

[0035] Preferably, a flexible element such as a line, for example a control line of a kite, is used as the reinforcement element. This is advantageous because Flexibility of the connected textile sections can be maintained. This is particularly advantageous when used in wings or kites, as the flexibility of the textiles used is important, for example, in the event of a fall, to absorb forces and thus minimize damage to the wing or kite.

[0036] Even folding the kite and / or wing compactly for transport and storage purposes can only be done with a certain degree of flexibility.

[0037] In another preferred embodiment, dimensionally stable wires are used as reinforcement elements. These can absorb greater forces than the control lines of a kite. A textile composite of this design can therefore withstand a higher maximum tensile load.

[0038] The textile composite can therefore be advantageously configured to be either more flexible and less resilient or more resilient but less flexible, depending on the desired application.

[0039] According to a further aspect of the invention, a kite is provided with a tube which is closed at least in sections with a textile composite according to claims 1 to 7 and which has an inflatable bladder inserted.

[0040] Tubes which are, for example, sealed over their entire length by means of a textile composite according to the invention are very resilient and can, in particular, withstand the tensile loads caused by the high pressures prevailing within the inflated bladder.

[0041] A kite according to the invention is very resilient due to the textile composite used, less susceptible to environmental influences such as salt water or sand, offers good aerodynamic properties even in the area of ​​the textile composite on the tube surface, is easy to fold, transport and store and is easy to repair in case of damage.

[0042] Furthermore, depending on the kite size and / or intended use, different reinforcement elements can be added, allowing the kite to be configured to suit the intended use.

[0043] Furthermore, a wing for wing foiling is provided with a strut which is closed at least in sections with a textile composite according to patent claims 1 to 7 and which has an inflatable bladder inserted.

[0044] In an advantageous design, lightweight reinforcement elements are used, resulting in a textile composite that saves weight compared to state-of-the-art seams, making the wings lighter overall, which has a positive effect on handling.

[0045] A wing according to the invention is very resilient due to the textile composite used, less susceptible to environmental influences such as salt water or sand, is easy to fold, transport and store, and is easy to repair in case of damage.

[0046] According to a further aspect of the invention, a method for producing a textile composite is provided. The method comprises providing the textile sections to be joined, providing reinforcing elements, providing a connecting thread, positioning the reinforcing elements, folding the textile sections around the respective reinforcing element positioned on the textile sections to form a turn-up hem, positioning the two textile sections in a position in which they are to be sewn, and sewing the connecting seam with the provided connecting thread such that both textile sections to be joined are connected to one another and the connecting seam on each of the two textile sections runs in the turn-up area of ​​the hem such that the connecting thread pierces both overlapping textile layers created by turning up the hem.

[0047] This process allows the production of a textile composite according to the invention, which offers the aforementioned advantages. Furthermore, the process itself is advantageous because it can be carried out without special sewing machines.

[0048] In an advantageous embodiment of this method, both textile sections to be joined are arranged butt-to-butt before being sewn. This results in a textile composite with a comparatively small cross-sectional diameter in the joining area, thus realizing, in particular, the aerodynamic advantages listed above.

[0049] In an advantageous embodiment of the process, both textile sections to be joined are positioned overlapping before being sewn. This process allows for the production of a beneficial textile composite, which has the particular advantage of protecting the connecting thread under stress, as the hem turn-ups with the internal reinforcement elements cover the connecting thread. This provides particularly advantageous protection against environmental influences.

[0050] In an advantageous embodiment of the method according to the invention, an additional textile section is provided which is positioned such that it covers the connection area of ​​the textile composite at least on one side and is then fixed to at least one of the two initially connected textile sections.

[0051] In this embodiment, the method can be used to produce a textile composite that is particularly suitable for covering sensitive elements, such as the inflatable bladder of a wing or kite, since, among other things, it prevents, or at least makes it more difficult, for the bladder to become trapped in the connection area. Furthermore, this method is suitable for producing a textile composite that advantageously protects the connection point from environmental influences such as sand particles, or protects this connection point from the penetration of these or other particles or liquids, for example.

[0052] In a particularly preferred embodiment of this method, at least one of the reinforcing elements is fixed to the textile section on which it was positioned. This is particularly advantageous in the manufacturing process itself, as it allows for decoupling of the process steps.

[0053] This advantageously provides temporal decoupling, as the process can be interrupted after the reinforcement element has been fixed. Furthermore, this modification also advantageously provides spatial decoupling. For example, textile sections can be combined with their respective reinforcement elements at one location by fixing these reinforcement elements there. All subsequent steps can then be performed at a different location.

[0054] Further aspects are described below with reference to the figures.

[0055] Please note that Figures 1 to 3 are schematic cross-sections intended to illustrate the seam constructions and do not accurately represent all aspects of the respective textile composites. In particular, distances and proportions may differ from those of a real textile composite.

[0056] Fig. 1 shows a schematic cross-section of a textile composite as known from the prior art and used, for example, to close tubes of kites.

[0057] Fig. 2 shows a schematic cross section of a first preferred embodiment of a textile composite according to the invention in which a so-called overcast stitch is used.

[0058] Fig. 3 shows a schematic cross-section of a second preferred embodiment of a textile composite according to the invention, which is designed with an overlapping seam construction. Detailed description of the characters

[0059] Figure 1 shows schematically a cross-section of the connection area of ​​a textile composite as known from the prior art.

[0060] The textile composite comprises two textile sections (1) to be joined, each of which has a reinforcing seam tape (2) arranged in the joining area. In addition, a reinforcing textile section (4) is sewn into this textile composite using a fastening seam (5), which encloses the joining area of ​​the two textile sections (1) to be joined. The joining area is additionally folded over and closed with a load-bearing seam (6).

[0061] Reinforcing seam tapes (2) are positioned on the connecting textile sections (1) and optionally attached. These seam tapes serve the sole purpose of strengthening the seam area and must be kept in stock.

[0062] The textile sections (1) to be joined are sewn in a position in which the reinforcing seam tapes (2) are in direct contact with each other. Initially, a connecting seam (4) is used. It should be noted that this connecting seam (4) does not subsequently assume a load-bearing function. Rather, it serves to improve handling during the subsequent manufacturing process.

[0063] The prior art textile composite further comprises a reinforcing textile section (3) that encloses the end sections on the side of the two textile sections (1) to be joined that are connected by the connecting seam (4). The reinforcing textile section (3) is fixed by a fastening seam (5), which also does not fulfill a load-bearing function in the textile composite.

[0064] The load-bearing seam of the textile composite shown in Figure 1 sews a folded section of the end sections of the textile sections (1) to be joined, which are covered by the reinforcing textile section (3).

[0065] Both the reinforcing seam tapes (2) and the reinforcing textile section (3) in this textile composite serve to better absorb the forces occurring and reduce seam displacement. However, due to the asymmetry of this textile composite, unavoidable uneven loads and load peaks arise, which lead to more rapid wear and damage than is the case with the inventive embodiments of textile composites shown in Figures 2 and 3.

[0066] In direct comparison with Figures 2 and 3, it can also be seen that this familiar textile composite from Figure 1 is significantly more multi-component. Both more elements and more seams are used in the production of such a textile composite.

[0067] Figure 2 shows a schematic cross section of a particularly preferred embodiment of a textile composite according to the invention.

[0068] This preferred embodiment comprises the textile sections (1) to be joined, each of which has a reinforcing element (8) arranged in the region of the hem turn-up. Furthermore, the hem turn-up is sewn with a hem turn-up seam (7). In this embodiment, the seam connecting the two textile sections (1) to be joined is designed as a connecting seam with an overcast stitch (9).

[0069] It should be noted that the textile sections (1) to be joined are both identified by the reference symbol (1), but this should not be interpreted to mean that both textile sections (1) to be joined must necessarily be made of the same material. The described invention expressly also encompasses textile composites that join textile sections of different materials. This applies equally to the reference symbols of the textile sections (1) in Figure 3.

[0070] The same reference numeral has also been chosen for the reinforcing elements (8) purely for reasons of clarity. The present invention expressly also encompasses embodiments which have different reinforcing elements incorporated in the textile sections to be joined. In particular, other cross-sections are also possible. The illustrated size ratio of the cross-section of the reinforcing elements (8) to the thickness of the textile sections (1) to be joined is also merely an example. The size ratio of the two reinforcing elements to one another can also be varied. The two reinforcing elements (8) used can be selected such that they have a different cross-section, in particular a cross-section of different sizes.

[0071] The hem turn-up of the fabric sections (1) to be joined is closed with the hem turn-up seam (7). The double seam shown here is an advantageous embodiment. The double stitching closes the seam particularly effectively and effectively prevents it from tearing.

[0072] The present invention expressly encompasses hem turn-up seams other than the double seam shown here; in particular, a single seam or a zigzag seam can also be used as the hem turn-up seam. The position relative to the reinforcement elements used can also be varied. For example, the seam can be located closer to or further away from the reinforcement element used.

[0073] The reinforcement elements (8) positioned in the connection area are shown in Figure 2 with a round cross-section. A round cross-section has proven to be advantageous because the thread of the connecting seam with overcast stitch (9) can transfer forces particularly well to the reinforcement elements (8). Furthermore, this round cross-section prevents the connecting thread from cutting into the material of the textile sections (1) to be connected by limiting the angle that the connecting thread to the surface of the textile sections (1) to be joined when the seam is subjected to tensile stress, is advantageously limited.

[0074] In Figure 2, the two textile sections (1) to be joined are positioned butt-to-butt, meaning they do not overlap in the position in which they are sewn. The connecting seam (9) is executed with an overcast stitch. An overcast stitch refers to a type of sewing stitch that is typically used to neaten fabric edges. Joining two textile sections using an overcast stitch, as in the embodiment described here, is rather unusual, but has proven surprisingly advantageous with regard to the resilience of the textile composite.

[0075] This seam connects the two textile sections (1) to be joined and encloses the inserted reinforcement elements. This type of stitch creates a textile composite with a comparatively small cross-sectional diameter in the joining area. In contrast to the textile composite shown in Figure 1, for example, this one also has no overlapping area between the textile sections.

[0076] It can be seen that the textile composite shown in Figure 2 is a symmetrical textile composite, which has a positive effect on its load-bearing behavior. This allows forces to be transmitted more evenly and prevents, or at least reduces, one-sided load peaks.

[0077] Figure 3 schematically shows a cross section through a further preferred embodiment of the invention.

[0078] This embodiment is a textile composite that connects both textile sections (1) to be joined in an overlapping seam construction. In addition to the textile sections (1) to be joined, it comprises reinforcing elements (8), hem turn-up seams (7), a connecting seam (10) that is covered under tensile load, and an additional textile section (11) that is fixed to at least one of the textile sections (1) to be joined by means of a fixing seam (12). In this exemplary embodiment, a reinforcing element (8) is fixed to one of the textile sections (1) to be joined by means of a fixing seam (13).

[0079] As in the above-described embodiment, in this preferred embodiment, reinforcing elements are incorporated in the hem turns of the textile sections (1) to be joined and these are Hem turn-up seams (7) are closed. However, in this embodiment, the textile sections to be joined are not sewn in a butt-to-butt seam construction, but rather in an overlapping seam construction.

[0080] In an overlapping seam construction, the textile sections (1) to be joined overlap at least in places. The connecting seam (10), which overlaps under tensile load, is sewn through in this seam construction, meaning that, according to the invention, the connecting thread pierces two layers of the hem turn-up for each textile section (1) to be joined. Figure 3 shows the textile composite under load; consequently, the overlap is only visible in the area of ​​the connecting seam (10), since the textile sections (1) to be joined are shown pulled to the right and left, respectively.

[0081] An advantage of this embodiment is the connecting seam (10) that is covered under tensile load. The overlapping area is shown in Figure 3. Under tensile load, an overlapping area is created between the hem turn-up with the inserted reinforcing elements and the surfaces of the pulled-apart, connected textile sections (1), which overlaps the sections of the connecting thread of the connecting seam (10) located on the outside of the connected textile sections (1).

[0082] Under greater tensile loads, this overlap area is compressed more strongly due to the selected geometry of the reinforcement elements (8) and the position of the connecting seam (10) in relation to them. Thus, at higher loads, the connecting thread is better protected, or at least equally protected, from environmental influences.

[0083] The textile composite shown in Figure 3 is also symmetrical and consequently, in a similar manner to the textile composite shown in Figure 2, has a more uniform load behavior on both sides of the textile composite compared to textile composites known from the prior art.

[0084] In order to prevent or reduce the passage of objects and / or substances, such as sand particles or water, through the textile composite, in this embodiment an additional textile section (11) is attached to at least one of the connected textile sections (1) by a fixing seam (12). This additional textile section (11) covers one side of the connecting area of ​​the textile composite.

[0085] In a kite or wing, this additional textile section can be pressed against the connecting area of ​​the textile composite by the inflated bladder, further improving the sealing function. At the same time, this also prevents direct contact between the bladder and the connecting area and the connecting seam thread, thus increasing the lifespan of the bladder. In particular, friction between the connecting thread and the bladder is reduced, resulting in less material abrasion.

[0086] Figure 4 shows a flow chart describing a manufacturing method for a textile composite according to the invention.

[0087] In the first step (S1), the materials required to produce the textile composite are prepared. These materials include the textile sections to be joined, such as (1) in Figure 2, reinforcement elements such as (8) in Figure 2, and threads for the seams, such as seams (7, 9, 10, 12, 13) in Figures 2 and 3.

[0088] The reinforcing elements can be designed, for example, as a monofilament or as a linear textile structure, in particular as a braided rope.

[0089] The connecting threads should be selected according to the intended use and expected loads. Connecting threads such as those familiar to sailors are particularly suitable.

[0090] Now the provided reinforcement elements are positioned in the connection area of ​​the textile sections to be joined (S2).

[0091] In the following processing step (S3), a decision is made as to whether at least one of the positioned reinforcement elements should be fixed to the respective textile section to be joined. This decision can be made, for example, based on considerations regarding handling during the subsequent manufacturing process of the textile composite.

[0092] If it has been decided to fix the reinforcement element, the reinforcement element (8) is subsequently fixed using any technique (S4). In particular, adhesive or welded joints are possible. Preferably, the reinforcement element is sewn to the textile section to be joined using a fixing seam, for example, a fixing seam (13) as shown in Figure 3. The decision as to whether or not to fix the reinforcement element can be made independently for each positioned reinforcement element. In particular, only one reinforcement element can be fixed. However, both reinforcement elements can also be fixed.

[0093] Due to the different suggested fixation options, or the omission of further fixation, this process is very flexible for the production of different textile composites and can be easily adapted to the respective application.

[0094] After fixation, or after positioning if no further fixation has been performed, the hem turnups of the textile sections to be joined are formed by folding the connecting areas of the textile sections to be joined around the respective reinforcing element positioned in the connecting area (S5). This creates two overlapping layers of the material of the respective textile section to be joined for each textile section to be joined. The hem turnups can preferably be closed with seams, as shown, for example, by reference number (7) in Figure 3. This facilitates handling of the textile sections to be joined during the subsequent manufacturing process.

[0095] The textile sections to be joined are now positioned according to the desired connection (S6). Preferably, the textile sections to be joined are positioned butt-to-butt, as shown by way of example in Figure 2, in order to produce a textile composite with a relatively smaller cross-sectional diameter in the joining area. In another preferred embodiment, the textile sections to be joined are positioned such that their respective joining areas overlap, resulting in a textile composite with a relatively larger cross-sectional diameter in the joining area and which offers better protection of the sewn joining thread under load. Such a textile composite is shown by way of example in Figure 3.

[0096] According to the previously selected position of the textile sections to be joined, the connecting seam is now sewn (S7). For butt-to-butt positioning of the fabric sections to be joined, an overcast stitch is the preferred seam type. If an overlapping positioning was chosen in the previous step, a through-stitched seam connection is preferred.

[0097] In step (S8), a decision is made as to whether or not an additional textile section should be sewn in. If no additional textile section is to be sewn in, the production of the textile composite is complete.

[0098] Otherwise, an additional textile section is provided and positioned so that it covers the connection area of ​​the textile composite on at least one side (S9). For use in a wing or kite, the additional textile section is preferably arranged so that it covers the future inner side of the textile composite.

[0099] Finally, the additional textile section is fixed to at least one of the previously connected textile sections of the textile composite (S10). This fixation is preferably achieved by a fixation seam. For example, the additional textile section can also be glued or welded. Figure 3 shows an example of the positioning of such an additional textile section (11) and its fixation by means of a fixation seam (12).

[0100] After the additional textile section has been fixed, the production of the textile composite is complete. List of reference symbols 1 textile section to be joined / joined 2 reinforcing seam tape 3 reinforcing textile section 4 connecting seam 5 Fastening seam 6 load-bearing seam 7 Hem turn-up seam 8 Reinforcing element 9 connecting seam (overcast stitch) 10 connecting seam covered under tensile load 11 additional textile section 12 Fixing seam 13 Fixing seam of the reinforcement element

Claims

Claims 1. A textile composite, comprising: a first textile section (1) having, at a first connecting section, a first hem turn-up with two overlapping layers of the first textile section; a second textile section (1) having, at a second connecting section, a second hem turn-up with two overlapping layers of the second textile section; a connecting seam (9, 10) connecting the first and second textile sections along their respective connecting sections by means of a connecting thread; characterized in that: a reinforcing element (8) is inserted between the two layers within the first and second hem turn-up; the connecting thread of the connecting seam pierces both layers of the first and second hem turn-up 2. Textile composite according to claim 1, characterized in that: the reinforcing element extends along the connecting seam within the first and / or second hem turn-up which is closed at least in sections by the connecting thread.

3. Textile composite according to one of claims 1 or 2, in which both connecting sections are sewn by means of the connecting thread in a butt-to-butt seam construction or an overlapping seam construction in which the first and second hem turn-up are in contact with one another.

4. Textile composite according to one of claims 1 to 3, in which at least one side of the connecting region is covered by a further textile section (11) which is fixed to at least one textile section of the composite, in particular by sewing (12), gluing or welding.

5. Textile composite according to one of claims 1 to 4, in which at least one of the reinforcing elements introduced into the first and second hem turn-up of the first and second textile section is additionally fixed to the respective textile section, in particular by sewing (13), gluing or welding.

6. Textile composite according to one of claims 1 to 5, in which at least one of the introduced reinforcing elements is designed as a monofilament or as a linear textile structure, in particular as a braided rope.

7. Sheathing for an inflatable hollow body, in particular a tube or a strut for sheathing an inflatable bladder for a foil wing for wing foiling or a kite for kitesurfing, which is closed at least in sections by means of a composite according to one of claims 1 to 6.

8. Foil wing for wing foiling or kite for kitesurfing, with a tube and / or a strut comprising a sheath according to claim 7.

9. A method for producing a textile composite, in particular according to claim 1, comprising at least the following steps: a. Providing two textile sections, each with a connecting region; b. Providing two reinforcing elements, each reinforcing element being assigned to one of the two connecting regions; c. Providing a connecting thread with which both provided textile sections are sewn; d. Positioning the reinforcing elements in the assigned connecting regions; e. Turning over the respective textile sections in the respective connecting region around the reinforcing element positioned on the textile section to form a turn-up hem; f. Arranging both textile sections in a position in which they are sewn; g.Sew the connecting seam with the connecting thread provided so that both fabric sections to be joined are connected to each other and the connecting seam on each of the two fabric sections runs in the turn-up area of ​​the hem so that it pierces both overlapping fabric layers created by turning the hem over.

10. Method according to claim 9, wherein the arrangement step f is carried out such that both connecting regions are arranged butt-to-butt or overlapping.

11. Method according to one of claims 9 or 10, which additionally comprises at least the following steps: h. Providing a further textile section i. Positioning the textile section provided in step h so that this textile section covers the connecting region of the connecting regions sewn in step g on at least one side of the textile composite j. Fixing the textile section provided in step h to at least one of the textile sections provided in step a.

12. Method according to one of claims 9 to 11, wherein following step d, an additional step d1 is inserted, which reads: d1. Fixing at least one of the positioned reinforcing elements to the textile section on which it is positioned, in particular by sewing, gluing or welding.

Citation Information

Patent Citations

  • wing rig

    DE102021125438A1