Attachment strap for attaching a shading material to a guide and procedure

Abstract

A connecting strip (10) for attaching a shading or covering material (13) to a guide (14), comprising a fastening section (11) in the area of ​​a first strip edge (37) for attaching the connecting strip (10) to the shading or covering material (13), and an anchor section (12) that is thicker than the fastening section (11) for insertion into the guide (14), characterized in that the anchor section (12) has an anchor (19) bonded to a holding surface (24) of the connecting strip (10), wherein the holding surface (24) has a floating surface.

Description

[0001] According to a first aspect, the invention relates to a fastening strap for attaching a shading or covering material to a guide, particularly in a vehicle, preferably in its sunroof. Such fastening straps are also called "keder straps".

[0002] Such shading material is known in the prior art, for example, for shading the passenger interior of a car, whereby the corresponding material in the form of a roller blind-like fabric can be guided manually or automatically along a guide below a panoramic glass pane.

[0003] According to the aforementioned state of the art, the shading material requires an anchoring element that can be inserted into the guide in order to enable the shading material to be moved in the first place.

[0004] From the prior art, for example DE 10 2019 112 013 A1 of the applicant, connecting straps are known for this purpose which are sewn or welded to the shading material in the area of ​​a first strap edge via a fastening section.

[0005] The opposite edge of the band is typically thicker, reinforced, or more convex to ensure it is held securely in the guide. To achieve this convexity, the connecting band in this section typically features a solid anchor (also called a "welt"), for example made of metal or plastic (in contrast to the applicant's publication, which discloses an anchor made of fabric).

[0006] In particular, the anchor can be such that such an anchor made of metal can also be described as a metal spring, which essentially extends over the entire length of the connecting strap and is glued to it (as explained, the anchor can also be made of another material, such as plastic or foil).

[0007] In this case, the connecting strap consists of a (textile) base, the solid anchor, and adhesive, which can be supplied in film form or similar for the purpose of manufacturing the strap. It is typically a hot melt adhesive, which is particularly well-suited for bonding the anchor to the base.

[0008] To improve the connection of the anchor core to the belt body, there are efforts, which are not verifiable in print, to roughen the belt body (in the area of ​​the holding surface for the anchor) by separating the provided threads or fibers.

[0009] This can particularly improve the interaction of the tape base with the adhesive, although at least partial destruction of the underlying tissue is generally not desirable.

[0010] It is therefore an object of the present invention to provide a connecting strap which enables an even more secure connection between the anchor and the strap base body.

[0011] The invention solves the stated problem in accordance with a first aspect with the features of claim 1, and is therefore characterized in particular by the fact that the holding surface has a floating surface, especially to improve the bonding.

[0012] In other words, the idea of ​​the invention is to provide floating threads or fibers on the base of the belt, in the area of ​​the anchor.

[0013] Floating threads in fastening tapes are generally known, for example, from DE 1 652 857 U or DE 1 677 438 U, but not in the area of ​​a thicker anchor section for the special design of a holding surface on which an anchor is to be glued, but for the formation of slots for hangers in curtains.

[0014] According to the invention, a floating structure enables particularly good backflow of the adhesive, resulting in an even more secure connection between the anchor and the tape base body.

[0015] Due to the floating process, the threads or fibers forming the floating effect no longer lie so close to the rest of the textile surface (especially the fabric) and are more easily penetrated or form loops or loops on the surface into which the adhesive can enter or which it can enclose.

[0016] Floating refers in particular to the phenomenon where a thread or fiber of a thread or fiber system lies over several other threads or fibers without a binding point.

[0017] Floats are normally responsible for the corresponding weave pattern of a fabric, but according to the invention they are used precisely so that the thread can "lie unprotected" and thus be infused with adhesive without destroying the fabric.

[0018] For the purposes of the present invention, a thread is defined as a linear, textile structure. In essence, it is a long, thin structure made of one or more fibers. As a general term, it encompasses in particular yarns and threads (where thread can consist of several, especially twisted, yarn strands or fibers). It is a textile intermediate product that can be further processed into textile fabrics, in particular woven, knitted, crocheted, or similar fabrics.

[0019] Floating is preferably used in woven fabrics. However, it can also be used (additionally) in any other textile fabric, for example (as an additional layer) on a nonwoven fabric, felt, or similar textile fabric.

[0020] The crucial point here is that at least one (yarn) thread of a thread system lies over several other threads (in particular at least 3, further in particular at least 5) without a binding point.

[0021] Such floatation (also called "flotation") can, if it is provided for in a fabric, be additionally provided for in any conventional weave (such as plain weave) or already be provided as an integral part of the weave type (such as twill weave or satin weave or other derived weaves, or composite weaves).

[0022] It is particularly advantageous if the floating process is already incorporated into the production of the strip body.

[0023] For example, the base of the band can consist of a fabric which, at least in the area of ​​the adhesive surface or holding surface for the anchor, has a floating or flotation effect.

[0024] Floating can affect either only the warp threads, only the weft threads, or both. Preferably, only the warp threads are floated.

[0025] According to a particularly advantageous embodiment of the invention, however, the warp threads cover several weft threads, and the weft threads cover several warp threads (so that together they can form a loop structure, which further increases the bonding security).

[0026] According to an advantageous embodiment, the float extends over at least three or four other threads in succession, and further advantageously over no more than 20 threads.

[0027] Preferably, the floating surface extends only over the area of ​​the adhesive surface or the holding surface for the anchor. The rest of the tape body is therefore not provided with a floating surface.

[0028] Alternatively, the invention also includes the possibility that the remainder of the tape body provides a float of a first type (for example, in the manner of a twill or satin weave) and the area of ​​the holding surface a second, different type of float (for example, a float in which more threads are overlapped).

[0029] Advantageously, the (second) floatation extends over a width range of at least 20 percent of the connection band.

[0030] Preferably, the (second) floatation extends over a width range of a maximum of 75 percent, and more preferably over a maximum of 50 percent.

[0031] The term "width range" refers to a direction perpendicular to the longitudinal extent of the connecting strap.

[0032] In another embodiment, the floating extends over the entire (width) area of ​​the connecting belt or the belt base body.

[0033] This means, in particular, that floating is also planned in the area of ​​the ribbon flag.

[0034] Depending on the application or manufacturing method, one or the other may be advantageous, easier to manufacture, unnecessary, or similar.

[0035] The anchor is glued to the mounting surface. It can also be called a "keder" (seal). However, since some literature refers to a keder as being round, the term "anchor" is deliberately chosen here, as the anchor does not necessarily have to be round, but can also have a rectangular, square, or similar cross-section.

[0036] It is preferably made of a material other than a textile, such as metal or plastic or similar materials.

[0037] The base of the band can run completely around the anchor in the cross-sectional direction to enable the most secure possible fixing using the adhesive.

[0038] Alternatively, the anchor can also be glued to the tape without being completely surrounded by it, i.e., it can be exposed on at least one side.

[0039] The belt body can be designed as a flat belt (i.e., essentially I-shaped in cross-section), or alternatively as a Y-shaped belt body.

[0040] The connecting strap or base body always has at least one anchor section and at least one fastening section.

[0041] The anchor section can consist of one or more flat band sections (or sections of the band body) - in the case of a Y-band, for example, two, while the third band section of the Y-band typically forms the flag or fastening section.

[0042] The flag section / attachment area of ​​the connecting strap or strap body is intended for connection to the shading or covering material. It is typically sewn or welded to this material.

[0043] The anchor section is thicker than the fastening section of the connecting strap due to the anchor provided there in addition to the strap body. This design is essential for its safe use in a guide rail, as the anchor section is located and moved within the guide rail.

[0044] The anchor section, particularly the convex one, is typically located in the area of ​​a (second) band edge. This means, in particular, that it can encompass the band edge. Therefore, said second band edge can be thicker than the fastening section.

[0045] The fastening section can be located in the area of ​​another, particularly an opposing, (first) edge of the strip and may, for example, encompass this edge. The fastening section is typically thinner than the anchor section. In particular, the fastening section can be essentially flat. A thinner or flatter design improves its attachment to the shading material.

[0046] To attach the fastening strip to the shading material, the fastening section can, at least partially, rest on the shading material (or on its edge). The fastening section can, in particular, be sewn to the shading material. However, the invention also encompasses any other method of fastening the fastening section and the shading material, for example, gluing (although this has not yet become established in practice) or welding.

[0047] The connecting strap typically has an elongated shape, meaning its length significantly exceeds its width by several times. Longitudinally, the fastening section and anchor section are typically arranged side by side, especially parallel to each other. Both usually extend over the entire length of the connecting strap.

[0048] Typically, two belt edges are arranged parallel to each other in the longitudinal direction (although it cannot be ruled out that there are also connecting belts which have several belt edges, or where it is unclear whether they have only two or more belt edges, for example in the case of belts in a Y-shape).

[0049] Therefore, the connecting band can essentially be in the form of a strip. The band according to the invention can be inelastic, in particular, perpendicular to the longitudinal direction.

[0050] In the longitudinal direction, the connecting strap can be elastic or inelastic.

[0051] The bonding strap according to the invention can also be specially treated during the manufacturing process, for example by adding chemicals or similar substances. For example, suitable chemicals with flame-retardant properties can be provided, particularly if the bonding strap is intended for use in the automotive sector.

[0052] The shading or covering material is typically a flat object, such as a textile, fabric, leather, velour, or similar material. This shading material can be essentially flat. In particular, it can be designed to be rolled up like a blind.

[0053] The belt body is also preferably rollable (along its longitudinal orientation).

[0054] The shading material is particularly suitable for suppressing light properties.

[0055] Typically, the shading or covering material is used in the area of ​​an opening (for example, a vehicle opening, a building opening, or other opening) and is movable in the area of ​​these openings.

[0056] For the purposes of this invention, the terms covering material and shading material are used essentially synonymously. Wherever one of these two terms is used, the other shall also be deemed to be implied. The material can thus either cover and / or shade an area arranged behind it.

[0057] Shading or covering material can be opaque, in particular to at least obscure the view through the opening. However, it is also conceivable that the shading material is transparent and merely possesses other light-reducing properties, such as UV filtering or similar. Such material is also to be understood as shading or covering material within the meaning of the present invention.

[0058] The invention also includes embodiments in which the shading material is only partially opaque. For example, it is conceivable to use shading or covering material that has perforations, a grid pattern, or similar features.

[0059] Advantageously, the shading or covering material is part of a roller blind-like device. With the help of this device, the shading material (together with the connecting tape) can be rolled up to reveal an opening that would otherwise be covered or concealed when unrolled.

[0060] For this purpose, the shading material is guided along the guide by means of the connecting strip according to the invention, which can in particular be a rail-like guide. Furthermore, the guide is advantageously designed to be linear, thus enabling linear guidance of the connecting strip and the shading material (at least up to a winding roll).

[0061] Advantageously, the connecting strap, guide and shading material are assigned to a glass pane, for example the roof or side window of a vehicle.

[0062] The term "vehicle" refers in particular to a car or truck, but also to a bus, rail vehicle, watercraft or aircraft.

[0063] The shading material can advantageously be a textile, a velour fabric, a leather fabric, or another suitable material.

[0064] Alternatively, the connecting strap may not be intended for a vehicle, but for a structure or building, i.e., for an opening such as a window, a (terrace) door, a skylight of a building, or something similar.

[0065] The anchor is typically attached to the holding surface of the connecting strap or the strap base body using hot melt adhesive.

[0066] Hot melt adhesives, sometimes also called "hot melts," "hot-melt adhesives," or similar terms, are typically solvent-free and / or water-free and / or more or less solid at room temperature. When heated, they typically exist as a viscous liquid and solidify again upon cooling, thus forming a strong bond. They are primarily thermoplastic polymers.

[0067] To produce a connecting strip according to the invention, a hot melt adhesive film, in particular a multi-layered one (for example a coex film), is typically arranged between the holding surface and the anchor, which is then melted or fused to connect the strip base body and the anchor, namely under pressure and heat.

[0068] Such an adhesive film can, for example, comprise several layers which have different melting points.

[0069] According to a particularly advantageous embodiment of the invention, the threads providing the float have protruding or detached fiber ends. This increases the surface area of ​​the thread and allows the adhesive to adhere better. Typically, staple fibers are used to manufacture the thread.

[0070] The invention solves the stated problem according to a further aspect by providing the holding surface of a textile surface structure with fibers containing hot melt adhesive.

[0071] In particular, threads of the textile surface structure may contain the hot melt adhesive.

[0072] In other words, according to this aspect of the invention, the idea is to provide threads in the area of ​​the holding surface which consist at least partially of hot melt adhesive.

[0073] This idea can then either lead to the elimination of the need for a separate adhesive in the production of the bonding strip (the aforementioned film can be omitted). Alternatively, this aspect of the invention can also be used in conjunction with the conventional adhesive (for example, in film form) to enhance its effects.

[0074] According to a particularly advantageous embodiment of the invention, these fibers or threads which have the adhesive are threads which form a floatation as described above or are part of this floatation.

[0075] According to a particularly advantageous embodiment of the invention, a thread can be provided which (in cross-section) has a core made of a first material and a sheath made of a hot melt adhesive. In this case, the core can, for example, consist of a material with a higher melting point. When a certain temperature is reached, the sheath melts first or exclusively and can ensure (improved) bonding of the core to the holding surface.

[0076] Depending on the specific design, the core may start to melt later (at higher temperatures) or not at all.

[0077] Crucially, the core has a higher melting point than the mantle.

[0078] Alternatively, the entire thread (homogeneous) can also consist of the hot melt adhesive.

[0079] According to another embodiment, threads made of a hot melt adhesive and those made of a material with a higher melting point can also be arranged side by side (especially alternating).

[0080] Finally, it is also conceivable that the core of a thread consists of a material with a higher melting point, and that this core is surrounded by several fibers or threads, each of which consists of hot melt adhesive.

[0081] For the sake of completeness, it should be noted that this aspect of the invention is not limited to fabrics. For example, other textile structures may also be provided which have fibers that consist of adhesive or at least contain adhesive.

[0082] Preferably, this aspect of the invention typically relates to textile surface structures (especially in the form of woven fabrics).

[0083] The textile surface structure that provides the holding surface can typically form the entire base body of the band.

[0084] In this case, the fibers containing the hot melt adhesive can preferably be provided only in the area of ​​the holding surface (although the case that they extend over the entire tape base body is not explicitly excluded by the invention).

[0085] For the sake of completeness, it should be noted that all the advantages, features and designs described in relation to the first aspect are also applicable to this aspect of the invention and are not explicitly repeated here for the sake of clarity of the application (for example, the connecting band can be one with an I- or Y-shaped band body in cross-section).

[0086] The adhesives in question may be PE adhesives in particular.

[0087] In the area with a higher melting point of a corresponding thread, for example, (high-strength) polyamide or similar.

[0088] According to further aspects of the invention, the problem is also solved by methods according to claims 9 or 10. All advantages and features described in connection with the preceding apparatus claims are expressly intended to also apply to these methods (and vice versa).

[0089] Advantageously, to improve the bonding, for example, a floating surface can be provided on the holding surface, which is created while the strip body is being formed (or alternatively only afterwards).

[0090] In other words, the floatation can advantageously be integrated into the belt body (and therefore not added subsequently).

[0091] According to another embodiment, heat is supplied during the production of the bonding tape, namely to melt or fuse the hot melt adhesive to the fibers containing the hot melt adhesive.

[0092] Further advantages of the present invention will become apparent from any uncited dependent claims and from the following description of the figures. These show: Fig. 1 in a very schematic, partially cutaway isometric oblique view a section of a connecting strap according to the invention, consisting of a fastening section and an anchor section, Fig. 2 in a very schematic, cutaway view a shading system for a vehicle roof using two fastening straps according to the invention Fig. 1, which attach a shade sail to a guide on each side, Fig. 3 in a very schematic bottom view, approximately according to view arrow III in Fig. 2, the shading system with the shading sail half-raised, showing a schematic roller blind box, Fig. 4 of the in Fig. 2. Area marked with reference numeral IV in an enlarged, highly schematic, exaggerated representation, Fig. 5 a very schematic sectional view of a part of a fabric in the area of ​​a holding surface of a prior art binding tape (a), a binding tape according to the invention with floatation (b), and a binding tape also according to the invention which combines floatation with a conventional binding (c), Fig. 6 in a very schematic, partially cutaway, isometric oblique view, approximately according to Fig. 1, the process of manufacturing a connecting strip according to the invention, in which, according to (a) a strip base body with floatation is initially provided, according to (b) a hot melt adhesive film is applied, according to (c) an anchor is prepared, and according to (d) after invisible heat application the finished connecting strip, which is approximately the same as that according to Fig. 1 corresponds, with a slightly different anchor configuration, Fig. Figure 7 shows an alternative embodiment of a connecting strap in a very schematic, cutaway side view, which is designed as a Y-strap. Fig. 8 in a view approximately according to Fig. 6, the process of manufacturing an alternative, inventive bonding tape with adhesive-containing fibers, in which the fibers / threads shown in (a) consist at least partially of adhesive, in accordance with (b) an anchor element is provided in the holding area and in accordance with (c) the finished bonding tape is then shown, Fig. 9 very schematic sectional views of the in Fig. 8 threads or fibers shown, in a configuration in which, according to (a) such a thread has a core and a sheath of hot melt adhesive, according to (b) several fibers or threads of such hot melt adhesive are arranged around a corresponding core, and according to (c) a configuration in which threads or fibers with higher and lower melting points alternate side by side, and Fig. 10 in a view according to Fig. 8 a sequence of figures, analogous to Fig. 8, concerning a tape with adhesive threads, the difference being to Fig. However, the difference is that a Y-band is created here, not a flat band.

[0093] The following description of the figures should be prefaced by the fact that identical or comparable parts may be provided with identical reference numerals, sometimes with the addition of small letters or apostrophes, which, for the sake of clarity, may be omitted in the patent claims following the description of the figures.

[0094] Fig. Figure 1 initially shows a section of a connecting band 10 according to the invention in a very schematic, isometric oblique view. The connecting band 10 extends much further in the longitudinal direction I than actually depicted. For the sake of clarity, in Fig. However, only an excerpt or a short piece of the connecting band 10 is shown.

[0095] With respect to its longitudinal direction I, the connecting strap 10 is divided into two sections arranged side by side in the transverse direction q, namely a wider but thinner fastening section 11 and a narrower but thicker anchor section 12.

[0096] Anchor section 12 includes, in particular, an anchor 19, which is typically not made of a fabric material but can be made of, for example, metal or plastic. The anchor 19 should, however, exhibit a certain degree of flexibility, since, as will be explained later, it is rolled up.

[0097] How Fig. As can already be guessed, the anchor 19 is wrapped in two layers of the base band 20 of the connecting band 10 and glued there in a manner described later.

[0098] The connecting strap 10 is essentially a fabric strap and serves, as shown, Fig. Figure 2, a very schematic cross-sectional view of a car roof, illustrates the connection of a shading material 13 (similar to a roller blind fabric) to a lateral guide 14a or 14b. Such a system is also known as a textile side guide and, as shown, Fig. 2 typically two connecting straps 10a and 10b according to the invention, which are each assigned to the shading material 13 on one side, each for connecting the shading material 13 to a guide 14a or 14b.

[0099] The covering or shading material 13 can typically be in a flat or rolled-up form and serve to shade a vehicle compartment 15 located beneath it (one in Fig. 2. The vehicle 16, which is only indicated by the roof area, serves this purpose. Particularly in strong sunlight, the passengers in the vehicle compartment 15 can thus be protected from solar radiation entering through a roof window 17.

[0100] For this purpose, the shading material 13 can be used, as evidenced by... Fig. 3 (which shows an underside view of the roof area 16 from the vehicle compartment 15) along the guides 14a and 14b in and against a direction of travel a (preferably remotely controlled). Fig. Figure 3 shows a partially extended position of the cover or shading material 13.

[0101] In a fully retracted position (not shown), the shading material 13 would typically be completely concealed within a position not visible to the vehicle occupant (and therefore in Fig. 3 (indicated by dashed lines) roller box 18 wound up, in particular together with the two side connecting straps 10a and 10b and the anchors 19, which also wind up. These connecting straps 10a and 10b are in Fig. 3, however, are not visible, as they are, Fig. 2 indicates that, in any case, their fastening section 11 is arranged above or rests on the shading material 13. The fastening section 11 has a sufficient width B2 so that the connecting strap 10 can be placed on the shading material 13 (laterally) and sewn or welded there for secure fastening with the fastening section 11.

[0102] The anchor section 12 of the connecting strap 10 is located as shown in Fig. 2 already indicated, in guide 14a or 14b and is held in this - as will be explained in more detail for later figures - in a way that is impossible to lose.

[0103] For the sake of completeness, it should be noted here that this is in the Fig. 2 and Fig. The covering or shading system shown in Figure 3 is not limited to a vehicle roof structure, although it is particularly advantageous for use in this context. In particular, a corresponding system with one or more connecting straps 10 according to the invention could also be used for vehicle side windows, vehicle rear windows, or even building windows or similar structures.

[0104] Returning to Fig. It can be readily seen from Figure 1 that the length of the connecting band 10 in the longitudinal direction I exceeds its width B by a multiple, so that the connecting band 10 appears strip-shaped overall. In particular, the connecting band 10 is designed to be coiled in the longitudinal direction I.

[0105] Regarding the connecting strap 10 according to Fig. It should also be noted that this may, for example, be inelastic, especially in the longitudinal direction I and / or transverse direction q.

[0106] The width B of the band 10, from edge 37 to edge 38, is in the illustrated embodiment approximately between 20 mm and 40 mm, preferably approximately 30 mm, and in the present embodiment approximately 31 mm.

[0107] The width B1 of the anchor section 12 is typically between 5 mm and 10 mm, for example 8 mm, and the width B2 of the fastening section 11 is between 15 mm and 30 mm, for example 23 mm. In the illustrated embodiment, this results in a width ratio between the width of the fastening section 11 and the width of the anchor section 12 of between 2 and 3.

[0108] These width specifications particularly illustrate that the connecting strip 10 is divided into exactly two sections 11 and 12, and thus consists (only) of fastening section 11 and anchor section 12 including anchor 19 and this fastening adhesive.

[0109] An important difference is in the thickness D1 and D2 of anchor section 12 and fastening section 11.

[0110] While the fastening section 11 has a thickness D2 of between 0.2 mm and 0.5 mm, for example 0.3 mm (and is therefore essentially flat), the anchor section 12 has a thickness of between 0.5 mm and 1.2 mm, for example 0.75 mm, and is therefore essentially convex.

[0111] The convexity or increased thickness D1 of the anchor section 12 results in particular from the material composition of the sections: While the fastening section 11 is essentially woven from (polyester) threads, the anchor section 12 also contains threads. However, the anchor 19 is incorporated into these threads during manufacturing (as will be explained in detail later) (which is not provided for in the fastening section 11).

[0112] This is precisely how the increased thickness D1 is achieved in relation to the reduced thickness D2 of the flat section 11, thus providing an anchoring function for the connecting band 10 within the guide 14. For its implementation, we will now refer to... Fig. 4 referenced, which is a very schematic, enlarged excerpt from the Fig. 2 shows, for example, in the Fig. 2. Area marked with IV.

[0113] In Fig. 4 can first be seen that the fastening section 11 of the connecting strap 10a rests on the top 36 of the shading material 13, namely on an edge strip 38 of the shading material 13, and is sewn there by means of an indicated seam 37.

[0114] This is particularly possible if the shading material 13 consists of a textile material. Alternatively, the shading material 13 can be made of leather, velour, or a similar material. The crucial point is that the shading material 13 is essentially a rollable, flat, planar, or flat, cloth-like body.

[0115] Furthermore, it clarifies Fig. 4, that in the illustrated embodiment, the fastening section 11 is not fully sewn to the edge strip 38 of the shading material 13, but only partially. An inner area of ​​the fastening section 11 extends into the opening 22 of the guide 14, where the connecting strip 10a widens or thickens due to its reinforced anchor section 12 or anchor 19.

[0116] This thickness or convexity of the anchor section 12 ensures secure anchoring of the connecting strap 10a and thus also of the shading material 13 in the guide 14a. Even if the guide 14b in Fig. Although 4 is not shown, these statements can also be applied to said guide 14b and the connecting band 10b (mirror symmetrical).

[0117] To Fig. Finally, it should be noted that the thickness of the anchor section 12 is exaggerated or not shown to scale for the sake of clarity, in order to illustrate the anchoring effect in the guide 14a.

[0118] To further enhance the anchoring effect and / or to allow for a narrower design of the guides 14, the anchor section 12 can be tilted or bent (guided) relative to the fastening section 11 within the guide (not shown).

[0119] Fig. Figure 4 shows in particular that the anchor 19 is wrapped in the strip body 20 and is bonded there using hot melt adhesive 21 (adhesive layer also exaggerated).

[0120] The strip body 20 provides both the fastening section 11 and part of the anchor section 12 (with the exception of the anchor 19 and the hot melt adhesive 21).

[0121] The band body 20 is essentially designed as a single part. In particular, it is designed as a fabric, preferably as a fabric with a continuous base weave over the entire width B of the connecting band 10 (or it has different (base) weaves in the fastening section 11 and in the anchor section 12).

[0122] To illustrate this, we will now refer to the Fig. 5 referred.

[0123] Fig. Figure 5 shows different tissue structures: First, in Fig. 5a A fabric of a prior art binding tape is shown, in particular the holding surface 24 (of the tape base body). Herein, the weft threads are designated by reference numeral 22 and the warp thread shown by reference numeral 23'.

[0124] In the prior art, for example, the entire base body of a connecting band, and in particular the area of ​​a holding surface provided by the base body, can be designed in the weave shown. This weave can be, for example, a so-called plain weave, in which the warp thread 23' shown is arranged meandering around the weft threads 22. This ensures a particularly compact weave.

[0125] According to the invention, it is evident Fig. 5b provides that the warp threads 23 are arranged in a floating manner, meaning that one warp thread 23 "overlaps" at least two, preferably at least three, weft threads 22 arranged side by side, as shown. This results, particularly on the side of the fabric that is to provide the holding surface 24 for the anchor, in exposed or unbound threads or thread sections. These thread sections are in Fig. 5b is marked with reference 25.

[0126] The advantage of such a floating method lies in the fact that the exposed thread sections 25 can be better surrounded by the adhesive to be provided on the holding surface 24, since the threads are “free” here.

[0127] In addition, small cavities or loops 26 form in the area between the weft threads 22 and the sections 25, in which the (hot melt) adhesive can penetrate particularly well.

[0128] In particular, such floating ensures a particularly secure bond between the holding surface 24 of the fabric and the anchor 19, without the need to destroy or separate the fabric.

[0129] In principle, floatation can be carried out according to Fig. 5b concerns any possible floatation. This has, according to [source / information], Fig. 5b In the illustrated embodiments, a float of three (weft) threads is used. However, a longer float of more than three (weft) threads, in particular more than ten (weft) threads, can of course also be provided.

[0130] Alternatively, the floatation can of course be chosen differently. In the illustrated embodiments, the weft threads 22 are not subject to any floatation. These can alternatively be floated instead of the warp threads 23, or in addition to them.

[0131] Fig. Figure 5c then shows a combination according to the invention. Here is the one in Fig. 5a shown plain weave with one warp thread 23' shown, with the additional addition of a floating warp thread 23 (the warp threads 23 and 23' can in particular be arranged next to each other, but for the sake of illustration they are shown arranged in a common plane).

[0132] In other words, the tissue structures here are according to the Fig. 5a and Fig. 5b has been combined. Such an embodiment also falls under the invention, since floatation is provided by the warp thread 23.

[0133] The warp thread or threads 23 and the warp thread or threads 23' can, for example, be woven together in such a fabric. Alternatively, it is also conceivable that a conventional fabric such as that found in Fig. Figure 5a shows that the warp threads are additionally or subsequently provided with corresponding floating threads 23. Of course, it is also possible for the weft threads to be floated instead of the warp threads, or both, in this embodiment.

[0134] A structure such as that found in the Fig. 5b and Fig. 5c for the holding surface 25 can, in the case of a connecting band 10 according to the invention, either be limited to the holding surface or alternatively be provided over the entire width B of the connecting band 10 or of the band base body 20.

[0135] Fig. 6 then shows in a view approximately according to Fig. 1, in a sequence of figures, the production of a connecting band according to the invention 10.

[0136] First, it shows Fig. Figure 6a shows an unfolded band base body 20 to which no anchor has yet been attached. The band base body 20 shows a fastening section 11, which consists, for example, of a conventional, non-floating fabric (structure not shown separately). To the left of this is an anchor section 12, which consists, for example, of the same fabric with the same basic structure, with the additional arrangement of floating threads 23 (these could be warp threads, for example).

[0137] The structure of this section 12 can, for example, be the structure according to Fig. 5c corresponds, the structure of section 11 for example to the structure according to Fig. 5a.

[0138] Alternatively, 20 floating threads 23 could be provided across the entire width B of the belt body.

[0139] In Fig. Figure 6a also shows an enlarged view of one of these floating threads 23. This reveals an optional feature not yet discussed, according to which fiber ends 27 can protrude from or extend from the floating thread 23. The fibers used for the thread 23 could, for example, be staple fibers, so that the protruding fiber ends make the thread 23 appear brittle.

[0140] The idea of ​​using such threads supports the adhesive effect of the holding surface 24 of the tape base body 20, which will be described later, because the surface area of ​​the threads 23 is thereby increased, and the possibility for the adhesive to adhere to the threads is improved.

[0141] To produce a connecting band 10 according to the invention, it is now possible, as shown, Fig. 5b a hot melt adhesive film 28 is applied to the anchor section 12 provided with floating threads 23 or to the holding surface 24, for example a thermoplastic (“hot melt”) adhesive film (in particular a multilayer one, for example a coex film).

[0142] According to Fig. 6c can then be applied to the area of ​​the holding surface 24 provided with the foil 28 (to the right of a in Fig. The anchor 19 is placed on the central axis 29 shown in 6a, and this anchor may be made of metal, a suitable plastic or similar material.

[0143] The transition between the characters Fig. 6c and Fig. Figure 6d then shows that the band base body 20 or the holding surface 24 can now be folded approximately along the central axis 29 in order to provide a pocket for the anchor 19. In this position according to Fig. 6d Heat or warmth can then be applied to the prepared connecting tape 10 to melt the hot melt adhesive film 28 and securely connect the tape base body 20 to the anchor 19.

[0144] Through the in the Fig. 5b, the floating threads 23 shown, which may in particular be provided with protruding fiber ends 27, result in a particularly good anchoring of the adhesive (of the film 28) to the tape base body 20 in the area of ​​the holding surface 24 when the adhesive is melted.

[0145] Fig. Figure 7 then shows a slight modification of a connecting band 10 according to the invention, in which the band base body 20' is not, as in the embodiments of the Fig. 1, Fig. 4 and Fig. 6 is essentially I-shaped, but essentially Y-shaped.

[0146] The connecting band 10 can therefore also be called a Y-band.

[0147] Fig. Figure 7 shows an essentially conventional fastening section 11 (for connection to the shading material), which essentially consists of a first leg 30.

[0148] The anchor section 12 of the band body 20', on the other hand, comprises two legs, namely a short leg 31 and a slightly longer leg 32 (alternative variations could also be of equal length).

[0149] The legs 31 and 32 together form the holding surface 24' for the anchor 19, which in this embodiment is also attached to the holding surface 24' by means of hot melt adhesive 21.

[0150] The special feature in this embodiment is also that the holding surface 24' is a Fig. Figure 7, however, does not show the floating feature for the sake of clarity. This also improves the fixation of the anchor element 19 to the holding surface 24', as the adhesive 21 can interact better with the holding surface 24'.

[0151] To Fig. 7. It should be noted, merely for the sake of completeness, that in this embodiment, the anchor 19 is fixed to the band base body 20' only on one side. However, it is equally conceivable and feasible for the anchor 19 to be completely enclosed by the band base body, analogous to the preceding embodiment. In such a case, the legs 32 and 31 could, for example, be longer and extend further or completely around the anchor 19 (and thus also be bonded to its other side).

[0152] Fig. Figure 8 then shows an analogous view approximately according to Fig. 6. A second special feature of the present idea: This shows Fig. 8a first band base body 20", in which the fastening section 11 is conventionally designed.

[0153] However, in the area of ​​the holding surface 24', fabric threads 23" are shown, which are analogous to Fig. 6a may be trained in a floating capacity, but this is not mandatory.

[0154] According to Fig. 8a the threads 23" can therefore only be considered as exemplary threads or fibers of the ground tissue of the ligament body 20".

[0155] The special feature is that these 23" threads are at least partially made of hot melt adhesive (as will be explained in more detail later).

[0156] Due to this special design of the threads 23", a process step of applying a hot melt adhesive film analogous to Fig. Section 6b can be dispensed with in the present case, and anchor 19 can be used as evidenced by Fig. 8b is placed directly onto the holding surface 24' of the belt base body 20".

[0157] The ribbon core can then be folded analogously to 6d, which then results in Fig. 8c is shown, and the band 10' can be heated by melting or thawing the adhesive which is provided by the threads 23".

[0158] In other words, in this process, the adhesive can be provided by the textile structure itself. If it is a woven fabric, the weft and / or warp threads can contain such a hot-melt adhesive. If it is a different type of textile structure, the individual fibers can be formed in this way.

[0159] In the case of a woven fabric, for example, the entire thread may consist of a suitable hot melt adhesive material, or only its sheathing or similar.

[0160] In this regard, the following is cited as an example: Fig. Reference is made to 9, in which such a thread 23" is shown in cross-section.

[0161] This has a core 33 made of a first material and a shell 34 made of a second material.

[0162] Coating 34 consists in particular of a so-called hot melt adhesive.

[0163] The core 33 typically has a higher melting point than the mantle 34.

[0164] In this way, the thread 23" can be heated to create an adhesive effect (especially to fix the anchor 19 in or on the tape), without destroying the basic structure of the textile surface of the tape body (especially since the core 33 has a higher melting point and may not be partially or fully melted).

[0165] An alternative thread structure shows Fig. 9b, in which a corresponding core 33 is not surrounded by a sheath 34, but by several individual fibers or fiber strands 35, which, unlike the core 33, all consist of a hot melt adhesive. Even when such a structure is heated, a textile fabric, in particular a woven fabric, retains its basic structure, while still exhibiting adhesive properties, at least when heat is applied.

[0166] Finally, it shows Fig. 9c another embodiment in which strands (or cores) 33 of a higher melting point are laterally surrounded by individual fibers or threads or fiber strands of hot melt adhesive.

[0167] This embodiment is intended to indicate that in a fabric, threads 33 with a higher melting point and threads 35 with a lower melting point, in particular made of hot melt adhesive, can be used alternately.

[0168] This type of configuration also allows the fabric to adhere without being completely destroyed when heated, so that it retains its basic structure.

[0169] All threads can of course float, but they don't have to.

[0170] Finally, it will be noted that Fig. 10 referred to which, according to the actual idea of ​​the sequence of characters, are essentially the Fig. 8 corresponds to.

[0171] However, in this embodiment, the strip body 20''' is not designed as a flat strip, but rather as a Y-strip. The holding surface 24'' is therefore provided by the two legs 31 and 32 of the Y-strip base body 20''' in this embodiment. In this sense, the legs 31 and 32, or the holding surface 24'', have the adhesive-containing threads 23''.

[0172] Evidentiously Fig. 10b can be an anchor element 19' (which in this embodiment is only exemplary and is designed to be slightly wider than in the embodiment according to Fig. 8) be fully bonded to both legs 31 and 32.

[0173] In a Y-band, the anchor 19' is typically encased as shown, so that the anchor 19' is not glued on its upper side, which is visible in the present plan view, but is exposed.

Claims

[1] Connecting strip (10) for attaching a shading or covering material (13) to a guide (14), comprising a fastening section (11) in the area of ​​a first strip edge (37) for attaching the connecting strip (10) to the shading or covering material (13), and an anchor section (12) that is thicker than the fastening section (11) for insertion into the guide (14), characterized by , that the anchor section (12) has an anchor (19) bonded to a holding surface (24) of the connecting strap (10), wherein the holding surface (24) has a floating surface. [2] Connecting strap (10) according to claim 1, characterized by , that the floatation of warp and / or weft threads (22, 23) is formed. [3] Connecting strap (10) according to any one of the preceding claims, characterized by that the floatation is provided in addition to a conventional fabric structure, in particular a base weave. [4] Connecting strap (10) according to any one of the preceding claims, characterized by that the floating extends either over the entire belt body (20) of the connecting belt (10) or only over the area of ​​the holding surface (24). [5] Connecting strap (10) according to any one of the preceding claims, characterized by that the threads (23) providing the float, in particular to further improve the bonding, have protruding fiber ends (27) and / or staple fibers. [6] Attachment band (10', 10") according to the preamble of claim 1, wherein the anchor section (12) has an anchor bonded to a holding surface (24) of the attachment band (10), characterized by , that the holding surface (24') is provided by a textile surface structure with fibers (23") containing hot melt adhesive. [7] Connecting strap (10', 10") according to claim 6, characterized bythat the fibers (23") have a hot melt adhesive coating (34) or consist entirely of the hot melt adhesive (35). [8] Connecting strap (10) according to any one of the preceding claims, characterized by , that the connecting belt (10) is designed as a flat belt or as a Y-belt, in particular its belt base body (20, 20', 20'', 20'''). [9] Method for manufacturing a connecting strip (10) for attaching a shading or covering material (13) to a guide (14), wherein the connecting strip (10) comprises a fastening section (11) in the area of ​​a first strip edge (37) for attaching the connecting strip (10) to the shading or covering material (13), and an anchor section (12) that is thicker than the fastening section (11), characterized by , that to form the anchor section (12) an anchor (19) is glued to a holding surface (24) of the connecting strip (10), wherein a floating is provided on the holding surface (24). [10] Method for manufacturing a fastening strip (10') for fastening a shading or covering material (13) to a guide (14) wherein the fastening strip (10') comprises a fastening section (11) in the area of ​​a first strip edge (37) for fastening the fastening strip (10) to the shading or covering material (13) and an anchor section (12) that is thicker than the fastening section (11), characterized by , that to form the anchor section (12) an anchor (19) is glued to a holding surface (24') of the connecting strip (10'), wherein the holding surface (24') is provided by a textile surface structure with fibers (23'') having hot melt adhesive and wherein the hot melt adhesive is at least partially melted to attach the anchor (19) to the holding surface (24').

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