EP4141184B1 - Device and method for tensioning at least one web of fabric - Google Patents

Description

The invention relates to a device for tensioning at least one fabric web, comprising a tensioning device with a profile assembly extending along a longitudinal axis and a movement member movably mounted in the profile assembly, according to the preamble of claim 1.

The invention further relates to an architectural element, in particular a ceiling element or a wall element.

The invention also relates to a method for tensioning at least one fabric web.

In modern interior design, stretch ceilings or ceiling elements made of fabrics, foils or other textile fabrics are widely used as architectural elements. Wall elements with a similar construction are also known. Such elements are used as heated or cooling ceilings, backlit luminous ceilings and acoustic absorbers as well as pure design elements or as room dividers.

For the appearance as well as the function of the elements, it is necessary to tension all the fabrics or fabric panels used evenly and then secure them reliably. This process represents an enormous challenge, especially for large areas. This is particularly the case when it comes to ceiling elements, which due to their size do not have to be installed on the floor, but rather overhead directly on the ceiling.

To support assembly, it is known to use films that shrink under the influence of heat. In this case, however, a revision of the covering is of course no longer possible. The choice of materials and design options are also correspondingly limited with this process.

In other arrangements, the fabric panels are gradually fastened using clamps or screw connectors at certain intervals and in this way gradually and after excited. This process can be very time-consuming, especially if individual parts of the structure are difficult to access or if the element covers a large area. Here too, an overhaul is usually not possible without completely replacing the fabric covering, or at least not without a great deal of effort.

In order to enable a simple revision of a covered ceiling element, for example CN 205421674 U proposed to arrange a frame covered with a fabric panel so that it can pivot within a main frame via a joint. However, the construction is comparatively complex and expensive. This is also suitable in the CN 205421674 U proposed system only for smaller ceiling elements.

Another way to simplify the covering of a ceiling element with a fabric panel is in the US 9,858,836 B2 suggested. The ends of the fabric web are inserted into a recess of a profile assembly in which gripping elements are provided, which on the one hand enable the fabric to be easily pushed in, but block it from being pulled out. However, this tensioning technique is also comparatively complex and it is to be expected that the tension will loosen over time.

Finally, in the US 10,731,342 B2 Another covering technique is proposed, in which some fastening clips are attached to the ends of the fabric, which are initially hooked onto a lower holding element of the frame to be covered. The fastening clips together with the suspended fabric can then be individually unhooked from the lower holding elements and hooked into upper holding elements in order to stretch the fabric over a deflection section of the frame. As long as there is appropriate accessibility for manually rehanging the fastening clips, the process is fundamentally reversible. Nevertheless, this covering technology is also extremely time-consuming for the fitter. For further technical background please refer to DE 10 2018 133 340 B3 referred to, which relates to a generic device for tensioning a fabric web, which discloses the features of the preamble of claim 1.

Specifically, in the DE 10 2018 133 340 B3 a tenter frame for posters made of flexible, printable carrier material is proposed, consisting of a circumferential Frame made of essentially rigid frame profiles and fastening devices designed at least on the upper and lower edges of the clamping frame for clamping the carrier material. At least in the upper area of the clamping frame, a clamping bridge is provided for holding the upper edge of the carrier material. The clamping bridge is mounted on the upper frame profile so that it can pivot about a horizontal axis and can be pivoted and locked relative to the upper frame profile by means of an actuable clamping element.

In addition, it should also be noted that US 2005/0230066 A1 refer to a rail assembly for tensioning fabrics on a surface.

In view of the known prior art, the object of the present invention is to provide a device for tensioning at least one fabric panel, with which the assembly of the fabric panels is simplified, with preferably good revision options or good dismantling of the fabric panels.

The present invention is also based on the object of providing an architectural element with at least one fabric panel, in which the assembly of the fabric panels is simplified, with preferably good revision options or good dismantling of the fabric panels.

Finally, it is also an object of the invention to provide a method for tensioning at least one fabric panel, with which the assembly of the fabric panels is simplified, with preferably good revision options or good dismantling of the fabric panels.

The task is solved for the device with the features listed in claim 1. With regard to the architectural element, the task is solved by the features of claim 7 and with regard to the method by the features of claim 10.

The dependent claims and the features described below relate to advantageous embodiments and variants of the invention.

A device for tensioning at least one fabric web is provided, comprising a tensioning device with a profile assembly extending along a longitudinal axis and a movement member movably mounted in the profile assembly.

The profile assembly is preferably a single, elongated component. However, the profile assembly can also be an arrangement of several individual components aligned with one another, each of which does not necessarily have to be elongated.

The profile assembly is preferably made of a metal or has at least sections of metallic components. In principle, however, the profile assembly can be made of any material, for example plastic.

The extent of the profile assembly along the longitudinal axis is preferably greater than 10 cm, particularly preferably greater than 20 cm, very particularly preferably greater than 50 cm and even more preferably greater than 100 cm.

The movement member can preferably be an elongated component.

The movement member is preferably a single component, but in principle it can also be several components that are arranged in alignment with one another in the profile assembly.

The movement member can preferably be made of a metal or at least have a metal. In principle, however, the movement member can be made of any material, for example plastic.

The at least one fabric panel is preferably not to be understood as part of the device.

According to the invention, the movement member has at least one fastening section for mechanical fixation (preferably for direct fastening, but if necessary also only for indirect fastening) of a first end of the at least one fabric web along the longitudinal axis of the profile assembly.

The fabric web can be connectable to the movement member via the fastening section along the side, i.e. along the longitudinal axis of the profile assembly.

The fastening section is preferably designed for non-positive and/or positive fastening, but can optionally also be designed for cohesive fastening.

Preferably, exactly one fastening section is provided for each fabric panel. In principle, however, several fastening sections can also be provided per fabric panel, preferably - but not necessarily - arranged in alignment with one another.

Preferably, the first end of the at least one fabric web is fastened as evenly as possible along the longitudinal axis to the fastening section in order to apply a uniform and gentle distribution of forces to the fabric web when the fabric web is later tensioned.

According to the invention, the movement member in the profile assembly can be moved from a pre-assembly position to a final assembly position in order to mechanically tension the at least one fabric web during the movement into the final assembly position transversely or orthogonally to the longitudinal axis of the profile assembly.

The proposed movable mounting of the movement member within the profile assembly provides a comfortable possibility of tensioning the at least one fabric panel by moving the profile assembly from the pre-assembly position, in which the fabric panel is not yet (completely) tensioned, to the final assembly position, in which the fabric panel is (completely) stretched. Assembly is still easy for a fitter, even if the work is carried out overhead. H. must be carried out on the ceiling.

Due to the specified guidance of the movement member within the profile assembly, the correct covering of the fabric can be ensured and at the same time Assembly is carried out with particularly high precision. The options for aligning the fabric panel can be improved because the alignment of the fabric panel does not have to be done simultaneously with the bracing, as is often required in the prior art, and therefore has to be constantly readjusted. The fabric panel, on the other hand, can be precisely connected to the moving member in a mechanically relaxed state.

Preferably, the movement member in the profile assembly can also be moved back into the pre-assembly position starting from the final assembly position. In this way, a particularly simple revision and dismantling of the fabric panel can be carried out without the need to replace the fabric panel as a whole. The accessibility of the area covered by the corresponding design element, for example a lighting system, can therefore be particularly easy.

In principle, various options are possible for providing the guided mobility of the movement member within the profile assembly. The variants suggested below are therefore only to be understood as examples.

According to a particularly preferred development of the invention, it can be provided that the movement member and the profile assembly form a common swivel joint with an axis of rotation extending along the longitudinal axis or parallel to the longitudinal axis of the profile assembly in order to move the movement member in the profile assembly for the movement between the pre-assembly position and the final assembly position to be pivoted.

It has been shown that a pivoting movement is particularly suitable for tensioning the fabric panel, since a high level of force can then be used for the tensioning and, in addition, there can be particularly good accessibility for the fitter to fasten the respective fabric panel while this is happening Moving member is in the pre-assembly position.

According to a likewise preferred development of the invention, it can be provided that the moving member is displaceably mounted in a linear guide which extends transversely or orthogonally to the longitudinal axis of the profile assembly for the movement between the pre-assembly position and the final assembly position.

Linear displacement can also enable an advantageous assembly option and good accessibility.

In particular, it should be emphasized that a combination of pivoting movement and translational or linear movement can also be provided. For example, a swivel joint could be moved linearly within a linear guide of the profile assembly.

According to the invention it is provided that the clamping device has a first actuation device in order to move the moving member from the pre-assembly position into the final assembly position.

In addition, manual movability of the movement member in the profile assembly can in principle also be provided, for example via a lever that can be actuated by the fitter. However, an actuation device can provide early support for assembly.

In particular, an electrical, spring-based, pneumatic and/or hydraulic actuation device can be provided.

According to the invention it is provided that the first actuation device has at least one primary lifting cushion.

Lifting bags (also known as "lifting bags" or "air bags") are used to move loads. As a rule, these are rubber/fabric mats or hoses that can be filled with a corresponding fluid (gas, e.g. air or liquid, e.g. water) and thereby inflated.

The at least one primary lifting bag and/or the at least one secondary lifting bag mentioned below can have a fluid connection in order to supply or remove the fluid required to operate the lifting bag.

The device can optionally have a hose or another supply line that can be connected to the primary lifting bag and/or to the secondary lifting bag (e.g. via the fluid connection) or is permanently connected.

It can also be provided that the device (for example the respective lifting bag itself) has one or more pressure valves in order to specify or limit the pressure and thus the speed of filling the lifting bag.

The device can optionally also have a device for supplying and/or removing the fluid, for example a mechanical and/or electrical pump.

According to the invention, the at least one primary lifting bag is arranged and aligned in the profile assembly in such a way that a pneumatically or hydraulically induced expansion of the primary lifting bag causes the movement of the movement member from the pre-assembly position to the final assembly position - or vice versa.

Preferably, the primary lifting bags run along the movement member or are distributed at one or more locations along the movement member.

In an advantageous development of the invention, it can be provided that several of the primary lifting cushions are arranged distributed along the longitudinal axis of the profile assembly.

To the extent that several of the primary lifting bags are arranged distributed along the longitudinal axis of the profile assembly, they preferably have a common supply line for the fluid required for operation in order to supply the fluid to the respective primary lifting bags together. For example, a single common fluid connection can be provided for operating all primary lifting bags, which significantly increases comfort for the fitter.

In a further development of the invention, it can be provided that the at least one primary lifting cushion is designed to be tubular and extends along the longitudinal axis of the profile assembly, preferably at least approximately over the entire length of the profile assembly or over the entire length of the profile assembly (possibly also beyond).

In particular, a hose-like lifting cushion can be advantageous for enabling a uniform movement of the moving member from the pre-assembly position to the final assembly position and enable gentle tensioning of the fabric panel(s).

In an advantageous development of the invention it can be provided that the clamping device has a locking device in order to lock the movement member in the final assembly position in order to block movement of the movement member back into the pre-assembly position.

A locking device can be particularly advantageous since in this case the force that contributed to the tensioning of the fabric web, i.e. in order to move the movement member from the pre-assembly position to the final assembly position, no longer needs to be maintained. For example, the fluid (e.g. a gas, such as compressed air) can be released from the primary lifting bags.

In principle, any locking techniques can be provided, for example any non-positive and/or positive locking techniques. In particular, however, a form-fitting lock is preferred, such as a locking of a locking element or a locking of a snap connection.

In an advantageous development of the invention, it can be provided in particular that the locking device has a locking element which is movable between an unlocking position and a locking position, the locking element positively blocking a movement of the movement member back into the pre-assembly position in the locking position and releasing it in the unlocking position.

Preferably, the locking element is a locking element that can be pivoted about a swivel joint. The axis of rotation of the swivel joint preferably (but not necessarily) runs along the longitudinal axis or parallel to the longitudinal axis of the profile assembly.

In principle, however, a linearly displaceable locking element or another locking element can also be provided.

In an advantageous development of the invention it can be provided that the locking device has a second actuation device in order to move the locking element from the locking position into the unlocking position.

Since high forces can sometimes act when the fabric web(s) are tensioned, supporting the opening or releasing of the locking device by the second actuation device can be advantageous.

The second actuation device can be designed electrically, spring-based, pneumatically, hydraulically or in some other way. The aforementioned features that relate to the first actuation device can equally be provided for the second actuation device - and vice versa.

In a further development of the invention it can be provided in particular that the second actuation device has at least one secondary lifting cushion.

The at least one secondary lifting bag can be arranged and aligned in the profile assembly in such a way that a pneumatically or hydraulically induced expansion of the secondary lifting bag causes the movement of the locking element from the locking position to the unlocking position - or vice versa.

As already described with regard to the primary lifting bag, several secondary lifting bags can in principle also be arranged distributed along the longitudinal axis of the profile assembly. Particularly preferably, the at least one secondary lifting cushion is designed to be tubular and extends along the longitudinal axis of the profile assembly, preferably at least approximately over the entire length of the profile assembly or over the entire length of the profile assembly (possibly also beyond).

Preferably, exactly one primary lifting bag and exactly one secondary lifting bag are provided.

According to a further development of the invention, it can be provided that the locking device has a secondary safety device in order to secure the locking element in the To secure the locking position, preferably to secure it non-positively and/or positively.

The secondary lock can be used to ensure that the lock does not come loose unintentionally at any time after installation, even under adverse environmental conditions. The secondary security can be, for example, one or more snap hooks that block unintentional unlocking of the locking device. In principle, however, a screw connection, clamping and/or a magnetic secondary lock can also be provided. In particular, applying a spring force to the locking device or the locking element, which acts in the direction of the locking position, can be advantageous.

In an advantageous development of the invention it can be provided that the locking device has an actuating element, preferably a spring mechanism, for example a compression spring and/or a tension spring and/or a torsion spring and/or a spiral spring (preferred), wherein the actuating element or the spring mechanism is arranged and aligned in the profile assembly in order to apply a force to the locking element in the direction of the locking position.

The actuating element can further simplify the handling of the device, in particular since the locking device can be locked automatically as soon as the moving member is in the final assembly position.

The actuating element can optionally simultaneously fulfill the task of secondary securing, in particular if the actuating element or the secondary securing is designed as a compression spring and/or tension spring.

An actuating element, which causes a displacement of the locking element into the locking position, can simultaneously serve to secure the locking element in said locking position.

In an advantageous development of the invention it can be provided that the at least one fastening section of the movement member has a receptacle (e.g. a Groove or a recess) for a corresponding fastening element arranged at the first end of the fabric web.

In principle, the fastening section can be any mechanical holder for one or more fabric panels. The respective fabric panel can therefore be connected to the fastening section particularly easily by a fitter, for example by inserting the fastening element(s) attached to the respective end of the fabric panel into the receptacle. The receptacle can preferably be designed in such a way that the fastening element or the first end of the material web remains captively in the receptacle after insertion, for example by means of a frictional connection (for example a jamming) and/or, if necessary, also by a positive connection (for example by a latching).

In principle, however, the fastening section can also be an adhesive surface. Even a fastening section designed as a support surface for a screw connection or other fastening of the fastening elements of the fabric web can be provided.

According to a further development of the invention, it can be provided that the moving member and the receptacle of the moving member extend over the entire length of the profile assembly along the longitudinal axis of the profile assembly.

A uniform fastening along the longitudinal axis can be particularly advantageous, since the application of the tension force to the fabric web is then also correspondingly uniform and the stretched fabric web ultimately appears particularly smooth and even. In addition, the tensioning in this case is also gentler on the material.

In principle, however, a point-by-point or section-by-section fastening of the fabric web to the fastening section can also be provided.

In an advantageous development of the invention it can be provided that the movement member has a deflection section which extends along the longitudinal axis of the profile assembly and around which the fabric web can be deflected.

In particular, the combination of a deflection section and the proposed pivoting or displacement of the movement member within the profile assembly can be particularly advantageous, since an approximately seamless closure of the fabric web with a surrounding structure and/or the profile assembly can then be made possible. Furthermore, the deflection section can also advantageously serve to partially divert the clamping force and distribute it more evenly or in a more targeted manner.

In an advantageous development of the invention, it can be provided that the movement member has exactly two fastening sections in order to fix two fabric panels that are spaced apart from one another in the final assembly position of the movement member on the movement member.

For technical and/or aesthetic reasons, several layers of fabric or fabric panels arranged one above the other can be provided, in particular in a common architectural element. For example, a second panel of fabric can be used above a first panel of fabric that serves as a design visible surface in order to retain insects and/or dirt (e.g. dust, etc.), i.e. to prevent contamination from appearing on the visible surface and so on The appearance of the element is disturbing. This is particularly relevant when the fabric panels are illuminated.

The proposed device is particularly advantageous for bracing several fabric panels at the same time.

In principle, in addition to the profile assembly, the device can have any other external profiles, frame components or other housing parts. The invention is particularly suitable for assembling and tensioning fabric panels in a frame or at least for tensioning fabric panels between two elongated frame components.

In a further development, it can be provided in particular that the device has a frame assembly arranged at a distance from the profile assembly. The frame assembly preferably extends parallel to the longitudinal axis of the Profile assembly. The at least one fabric panel can be attachable to the frame assembly with a second end opposite the first end.

The at least one fabric panel can thus be clamped between the frame assembly and the profile assembly. The frame assembly can in principle be any component to which the second end of the fabric panel can be attached.

Optionally, the frame assembly can be designed like the clamping device according to the invention. Two opposing tensioning devices can therefore also be provided in order to tension the fabric web starting from both sides. In principle, however, this is not absolutely necessary.

A frame assembly can also be completely dispensed with, for example if the fabric web is attached with its second end directly to a surrounding structure, for example a ceiling, a wall, etc.

It should be mentioned at this point that bracing according to the invention can in principle also take place along other spatial directions. For example, one-sided, two-sided, three-sided or even four-sided bracing can be provided. For this purpose, for example, four devices according to the invention can be connected to one another in the manner of a complete frame, in which case a miter area should preferably be provided in the corners in order to enable material compensation when the other spatial direction is clamped.

In a further development of the invention it can be provided that the profile assembly and/or the frame assembly have fastening means for mounting on an adjacent structure, such as a wall or a ceiling. The attachment to the adjacent structure can take place directly on the adjacent structure (for example the wall or the ceiling), but if necessary also only indirectly, for example by the profile assembly and / or the frame assembly being attached or attachable to a substructure and / or suspended ceiling structure is. In addition, the entire device can also be suspended and, for example, attached to a ceiling using cords or tension cables.

The exact type of attachment of the device or the profile assembly/frame assembly is not important in this case.

The fastening means can be, for example, fastening hooks, eyelets, bushings for screws, grooves, recesses, guide rails for a dovetail connection, screws, retaining clips, etc.

The invention also relates to an architectural element, in particular a ceiling element or a wall element, having a device according to the above and following statements and the at least one fabric panel.

Although the proposed device can in principle be suitable for covering any structure with one or more fabric panels, an architectural element is nevertheless a particularly advantageous use of the invention.

In an advantageous development of the invention, it can be provided that several of the fabric panels are arranged at a distance from one another (arranged one above the other) in the final assembly position of the movement member in a direction orthogonal to the longitudinal axis of the profile assembly, with the fabric panels having their respective first end on a respective assigned fastening section of the movement member (or possibly also on the same fastening section) are fixed.

As already mentioned above, it is particularly advantageous to cover an architectural element, in particular a ceiling element, with at least two fabric panels in order to prevent dirt, for example insects or dust, from being deposited directly on the visible fabric panel.

The fabric panels can in principle be made from any material or from any combination of several materials. In principle, the proposed fabric web can be any fabric, in particular a textile fabric.

According to a preferred development of the invention, it can be provided that at least one of the fabric panels has, at least in sections, a textile glass fiber sheet.

Glass fiber fabrics are particularly suitable for use with architectural elements because the glass fibers are lightweight and have advantageous fire protection properties. However, glass fibers can only be stretched insufficiently or have poor elastic properties, which is why covering architectural elements with glass fiber fabrics has so far been particularly complex or even impossible. It should be emphasized that the invention is advantageously suitable for use with any textiles or covering materials, but in particular for those with only low elasticity, such as the glass fiber sheet mentioned.

According to a further development of the invention, it can be provided that at least one of the fabric panels is formed from different textile fabrics connected to one another along the profile assembly.

Preferably, a first of the fabrics extends from the first end of the fabric web and is connected to a second of the fabrics.

Preferably, the first fabric has a smaller modulus of elasticity than the second fabric.

A particularly elastic fabric strip (“first fabric”) can therefore be provided between the fabric panel(s) to be tensioned and the fastening section or the receptacle in the movement member. If the material on which the fabric is based is not sufficiently elastic in itself (such as a glass fiber fabric), a flexible element can be introduced into the system through the elastic fabric strip or the “first fabric”, which allows this , the mechanism described above for tensioning, alignment and locking can be used particularly advantageously without damaging the insufficiently elastic material or the “second fabric”.

In an advantageous development of the invention, it can be provided that at least one of the fabric panels has at least one fastening element for fixing to the at least one fastening section of the movement member, preferably an edge reinforcement rail (e.g. a piping rail) or one that is glued, sewn or attached to the fabric panel Rubber lip profile connected in another way.

The fastening element can basically be designed in any way, for example as a piping, lip profile rail or clamping device.

• Bereitstellen einer Spanneinrichtung mit einer sich entlang einer Längsachse erstreckenden Profilbaugruppe und einem in der Profilbaugruppe beweglich gelagerten Bewegungsglied;
• Bereitstellen der zumindest einen Stoffbahn;
• Fixieren der zumindest einen Stoffbahn an wenigstens einem Befestigungsabschnitt entlang der Längsachse der Profilbaugruppe; und
• Bewegen des Bewegungsgliedes in der Profilbaugruppe, ausgehend von einer Vormontageposition bis in eine Endmontageposition, um die zumindest eine Stoffbahn während der Bewegung in die Endmontageposition quer zu der Längsachse der Profilbaugruppe mechanisch zu spannen.

The invention also relates to a method for tensioning at least one fabric web, comprising at least the following method steps:

• Providing a clamping device with a profile assembly extending along a longitudinal axis and a movement member movably mounted in the profile assembly;
• Providing the at least one fabric panel;
• Fixing the at least one fabric panel on at least one fastening section along the longitudinal axis of the profile assembly; and
• Moving the movement member in the profile assembly, starting from a pre-assembly position to a final assembly position, in order to mechanically tension the at least one fabric web during the movement into the final assembly position transversely to the longitudinal axis of the profile assembly.

The fabric panel(s) are preferably inserted into the opened device or fixed to the moving member without any mechanical tension being applied, as long as the moving member is in the pre-assembly position or at least not yet in the final assembly position.

The proposed method allows the fabric panels to be stretched particularly comfortably and also particularly evenly.

The proposed method is particularly advantageous for covering architectural elements, such as wall elements or ceiling elements, with at least one fabric panel. In principle, however, the process is suitable for covering any element with any length of fabric.

According to the invention it is provided that at least one primary lifting bag is expanded pneumatically or hydraulically in order to effect the movement of the movement member from the pre-assembly position to the final assembly position.

The volume of the lifting bags can be increased using pneumatic or hydraulic pressure. This increase can, for example, exert a torque on the movement member serving as a tensioning element, which ultimately carries out a rotational movement in its suspension within the profile assembly and thereby tensions the at least one fabric web. Due to the increasing pressure or the increasing volume in the lifting cushions, the moving member can be rotated or pushed into its end position or final assembly position.

Actuating the movement of the movement member, in particular a pneumatically or hydraulically supported movement, enables particularly comfortable tensioning of the fabric panels.

According to a development of the invention, it can be provided that the movement member is locked in the final assembly position in order to block movement of the movement member back into the pre-assembly position.

Preferably, the movement member is locked mechanically in the final assembly position by a bracket or a locking element.

In particular, automatic locking of the movement member in the final assembly position as soon as the movement member has reached the final assembly position is preferred.

According to a further development of the invention, it can be provided that the at least one primary lifting cushion is relaxed pneumatically or hydraulically after the movement member has been locked in the final assembly position.

The locking mechanism allows the pressure to be released from the lifting bags without the movement member moving back to its open position (pre-assembly position). In an advantageous manner, for example, a device for supplying and/or discharging the fluid can be removed again after assembly. Further Even an unintentional loss of pressure after installation does not lead to a loss of tension in the fabric.

In a further development of the invention it can be provided that at least one secondary lifting cushion is expanded pneumatically or hydraulically in order to (again) release the locking of the movement member.

As a result, the movement member is movable again and is preferably moved back into its open position or into its pre-assembly position by the mechanical tension of the fabric panels. After or during this process, the pressure from the secondary lifting bags can be relieved again.

An actuatory release of the locking of the movement element can be particularly advantageous, but in principle an actuator release of the movement element is not absolutely necessary.

A further advantageous embodiment may relate to an additional mechanical lock (referred to above as a "secondary lock") which is arranged at one or more positions within the tensioning device, for example, but not exclusively, in the form of a spring mechanism, which prevents uncontrolled unlocking of the locking device Movement limb prevented.

Features that have been described in connection with one of the objects of the invention, namely given by the device according to the invention, the architectural element according to the invention or the method according to the invention, can also be advantageously implemented for the other objects of the invention. Likewise, advantages that were mentioned in connection with one of the objects of the invention can also be understood in relation to the other objects of the invention.

In addition, it should be noted that terms such as “comprising”, “having” or “with” do not exclude other features or steps. Furthermore, terms such as "a" or "the", which indicate a singular number of steps or features, do not exclude a plurality of features or steps - and vice versa.

In a puristic embodiment of the invention, however, it can also be provided that the features introduced in the invention with the terms “comprising”, “having” or “with” are listed exhaustively. Accordingly, one or more lists of features may be considered complete within the scope of the invention, for example considered for each claim. The invention can, for example, consist exclusively of the features mentioned in claim 1.

It should be mentioned that terms such as "first" or "second" etc. are used primarily for reasons of distinguishing between respective device or method features and are not necessarily intended to indicate that features are mutually dependent or related to one another.

Furthermore, it should be emphasized that the values and parameters described here represent deviations or fluctuations of ±10% or less, preferably ±5% or less, more preferably ±1% or less, and most preferably ±0.1% or less of the respectively named Value or parameter included, provided that these deviations are not excluded when implementing the invention in practice. The specification of ranges through initial and final values also includes all those values and fractions that are included in the respectively named range, in particular the initial and final values and a respective mean value.

Exemplary embodiments of the invention are described in more detail below with reference to the drawings.

The figures each show preferred exemplary embodiments in which individual features of the present invention are shown in combination with one another. Features of one exemplary embodiment can also be implemented separately from the other features of the same exemplary embodiment and can accordingly be easily combined by a person skilled in the art to form further sensible combinations and sub-combinations with features of other exemplary embodiments.

In the figures, functionally identical elements are provided with the same reference numbers.

Figur 1

ein erstes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zum Spannen von zwei Stoffbahnen im entspannten bzw. geöffneten Zustand in einer Seitenansicht;

Figur 2

das Ausführungsbeispiel der Vorrichtung der Figur 1 im gespannten bzw. geschlossenen Zustand in einer Seitenansicht;

Figur 3

das Ausführungsbeispiel der Vorrichtung der Figuren 1 und 2 in einer perspektivischen Darstellung;

Figur 4

eine Spanneinrichtung einer erfindungsgemäßen Vorrichtung gemäß einem zweiten Ausführungsbeispiel im entspannten bzw. geöffneten Zustand;

Figur 5

ein drittes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zum Spannen von zwei Stoffbahnen im entspannten bzw. geöffneten Zustand in einer Seitenansicht;

Figur 6

das Ausführungsbeispiel der Vorrichtung der Figur 5 im gespannten bzw. geschlossenen Zustand in einer Seitenansicht;

Figur 7

eine beispielhafte Montageabfolge zur Montage des primären Hebekissens in dem Bewegungsglied; und

Figur 8

eine beispielhafte Montageabfolge zur Montage des sekundären Hebekissens in dem Riegelelement und des Riegelelements in der Profilbaugruppe.

It shows schematically:

Figure 1

a first exemplary embodiment of a device according to the invention for tensioning two fabric panels in the relaxed or opened state in a side view;

Figure 2

the embodiment of the device Figure 1 in the cocked or closed state in a side view;

Figure 3

the embodiment of the device Figures 1 and 2 in a perspective view;

Figure 4

a tensioning device of a device according to the invention according to a second exemplary embodiment in the relaxed or opened state;

Figure 5

a third exemplary embodiment of a device according to the invention for tensioning two fabric panels in the relaxed or open state in a side view;

Figure 6

the embodiment of the device Figure 5 in the cocked or closed state in a side view;

Figure 7

an exemplary assembly sequence for assembling the primary lifting bag in the moving member; and

Figure 8

an exemplary assembly sequence for assembling the secondary lifting bag in the locking element and the locking element in the profile assembly.

The Figures 1 to 3 show an architectural ceiling element 1 with two fabric panels 4, 5 stretched between a profile assembly 2 and a frame assembly 3. The ceiling element 1 has a device 6 for tensioning the fabric panels 4, 5.

Figure 1 shows the device 6 in an assembled state in which the two fabric panels 4, 5 are not yet tensioned or are only loosely suspended in the device. figure 2 and Figure 3 However, show the device 6 in an assembled state with correspondingly tensioned fabric panels 4, 5.

The lower, first fabric panel 4 serves as a design element and the upper, second fabric panel 5 serves to catch insects or other dirt. The functions/uses of the respective fabric panels 4, 5 or other fabric panels can, in principle, be arbitrary. The profile assembly 2 and the frame assembly 3 each have fastening means 7 for mounting on an adjacent structure, such as the walls 8 shown and/or the ceiling 9. A lighting device 10 is used, for example, to illuminate the fabric panels 4, 5.

The fabric panels 4, 5 can in principle be fabric panels 4, 5 made from any desired textile fabric. Preferably, however, at least the first fabric web 4 has a textile glass fiber sheet. Furthermore, at least the decorative, first fabric web 4 can be formed from several textile fabrics connected to one another along the side of the profile assembly 2 to ensure particularly good tension, with a first fabric 11 extending from the first end of the first fabric web 4 and with a second fabric 12 is connected, wherein the first fabric 11 has a smaller modulus of elasticity than the second fabric 12 to provide high elasticity.

To fix the fabric panels 4, 5, appropriate fastening elements can be provided, for example edge reinforcement rails 13.

A device 6 according to the invention for tensioning the fabric webs 4, 5 will be described in more detail below using exemplary, non-restrictive exemplary embodiments.

The device 6 has a clamping device 14 with a tensioning device 14 extending along a longitudinal axis L (cf. Figure 3 ) extending profile assembly 2 and a movement member 15 movably mounted in the profile assembly 2. The movement member 15 each has a fastening section 16 for mechanically fixing the first end of the respective fabric web 4, 5 along the longitudinal axis L of the profile assembly 2.

It is envisaged that the movement member 15 in the profile assembly 2 starting from a pre-assembly position V (cf. Figure 1 ) up to a in Figure 2 Final assembly position E shown can be moved in order to mechanically tension the fabric panels 4, 5 during the movement into the final assembly position E transversely or orthogonally to the longitudinal axis L of the profile assembly 2. For this purpose, the movement member 15 and the profile assembly 2 according to the Figures 1 to 3 First exemplary embodiment shown has a common swivel joint 17 with an axis of rotation A extending along the longitudinal axis L of the profile assembly 2 (cf. Figure 3 ). In this way, the movement member 15 can be pivotally mounted in the profile assembly 2 for movement between the pre-assembly position V and the final assembly position E.

In the exemplary embodiments, the fastening sections 16 of the movement member 15 have receptacles for the corresponding fastening element or the edge reinforcement rail 13 of the fabric web 4, 5. The edge reinforcement rail 13 is preferably a rubber lip profile that is glued, sewn or connected in some other way to the edge of the respective fabric web 4, 5 and can be inserted into the corresponding receptacles or grooves of the movement member 15. Instead of an edge reinforcement rail 13, a piping rail, a clamping and/or screw connection or another form of fastening can also be provided, for example. The movement member 15 and the fastening sections 16 of the movement member 15 extend over the entire length of the profile assembly 2 along the longitudinal axis L of the profile assembly 2. In this way, particularly uniform tension can be ensured.

The movement member 15 has deflection sections 18 extending along the longitudinal axis L of the profile assembly 2, around which the respective fabric web 4, 5 can be deflected. When arranging the deflection sections 18 and the fastening sections 16, it is preferably ensured that the two fabric panels 4, 5 are spaced apart from one another in the final assembly position E, that is to say they are arranged one above the other. However, this is not absolutely necessary.

The ones in the Figures 1 and 2 Frame assembly 3 shown extends parallel to the longitudinal axis L of the profile assembly 2. The two fabric panels 4, 5 can be fastened to the frame assembly 3 with their respective second end, which is opposite the first end. In principle, however, fastening can also be done for example, be provided directly on the wall 8 shown or on a second device. The frame assembly 3 is therefore not absolutely necessary.

It should be mentioned at this point that tensioning of the fabric panels 4, 5 can in principle also be provided along at least one further spatial direction, in particular in the direction of the longitudinal axis L (not shown in the figures). The device 6 can then be part of a complete frame made up of further devices 6 and/or frame assemblies 3.

In order to move the movement member 15 from the pre-assembly position V to the final assembly position E, the tensioning device 14 has a first actuation device 19 with at least one primary lifting cushion 20. The primary lifting bag 20 is arranged and aligned in the profile assembly 2 such that a pneumatically or hydraulically induced expansion of the primary lifting bag 20 causes the movement of the moving member 15 from the pre-assembly position V to the final assembly position E. Exactly one primary lifting bag 20 can be provided; However, several of the primary lifting bags 20 can also be arranged distributed along the longitudinal axis L of the profile assembly 2. Preferably, the primary lifting cushion 20 is tubular and extends along the longitudinal axis L of the profile assembly 2.

In Figure 1 the primary lifting bag 20 is relaxed and the moving member 15 is therefore in the pre-assembly position V. In Figure 2 However, the primary lifting bag 20 is expanded, which is why the movement member 15 was moved to the final assembly position E.

A fluid connection 21 of the primary lifting bag 20 can be connected to a supply line 22 for the fluid (gas and/or liquid). Optionally, the device 6 can also have a device 23 for supplying and/or removing the fluid, for example an electrically operable pump. In principle, a corresponding device 23 for supplying and/or discharging the fluid can also be provided on site.

Preferably, the clamping device 14 has a locking device 24 in order to lock the movement member 15 in the final assembly position E, i.e To block movement of the movement member 15 back into the pre-assembly position V, preferably in a form-fitting manner. In the exemplary embodiments, the locking device 24 has a locking element 25.

In the in the Figures 1 to 3 shown, first embodiment and in the Figures 5 to 8 In the second exemplary embodiment shown, a pivotable locking element 25 is provided. The locking element 25 is between an unlocking position (cf. Figure 1 or. Figure 5 ) and a locking position (cf. Figure 2 or. Figure 6 ) movable.

In order to secure the locking element 25 in the locking position, preferably non-positively and/or positively, the locking device 24 can also have a secondary lock 26. This can be, for example, one in the Figures 1 and 2 indicated compression spring, which applies a force to the locking element 25 in the direction of the locking position. Alternatively, a tension spring, a torsion spring or spiral spring (cf. Figures 5, 6 and 8 ) or another force-generating unit can be provided, but in particular a spring mechanism. The compression spring, tension spring, torsion spring, spiral spring or other unit can in principle also serve as an actuating element in order to automatically lock the locking device 24 or the locking element 25 as soon as the movement member 15 is in the final assembly position E.

In the in the Figures 1 to 3 In the exemplary embodiment shown, the compression spring or the secondary fuse 26 fulfills the function of an actuating element on the one hand and the function of a secondary fuse 26 on the other hand.

An alternative or additional, optional secondary fuse 26 is included Figure 2 indicated by dashed lines as a projection behind which the locking element 25 can snap into place, for example if the movement member 15 is briefly over-tightened during assembly and later relaxed slightly again.

For disassembly or to release the movement member 15 for movement back into the pre-assembly position V, it can be advantageous if the locking device 24 has a second actuation device 27 in order to move the locking element from the locking position to the unlocking position. By Embodiment of the Figures 1 to 3 the second actuation device 27 has at least one secondary lifting cushion 28, which is arranged and aligned in the profile assembly 2 in such a way that its pneumatically or hydraulically induced expansion causes the movement of the locking element 25 from the locking position to the unlocking position. The secondary lifting cushion 28 can also have a fluid connection 21 in order to connect a supply line 22, not shown, in order to supply the secondary lifting cushion 28 with the fluid starting from a device 23 for supplying and/or discharging the fluid or in order to pump out the fluid (preferably by means of the same device 23, which is also intended for use with the primary lifting bag 20, but possibly also a further device 23).

A second embodiment of the device 6 is in Figure 4 indicated. In Figure 4 Only the device 6 for tensioning the fabric panels 4, 5 is shown as an example. The fabric panels 4, 5 themselves and the optional frame assembly 3 are not shown.

In the exemplary embodiment Figure 4 the movement member 15 is slidably mounted in a linear guide 29 of the profile assembly 2 which extends transversely to the longitudinal axis L of the profile assembly 2 for movement between the pre-assembly position V and the final assembly position E. Again, at least one primary lifting bag 20 can cause the movement.

To lock the movement member 15 in the final assembly position E, a locking element 25 is again provided, which in the exemplary embodiment Figure 2 is also linearly displaceable and can penetrate into a locking recess 30 of the moving member 15 when the final assembly position E of the moving member 15 is reached due to gravity and/or a spring device (not shown). Lifting the locking element 25 out of the locking recess 30 of the moving member 15 ultimately enables the moving member 15 to move back into the pre-assembly position V in order to reverse the tensioning of the fabric panels 4, 5.

The Figures 5 and 6 show a third exemplary embodiment of a device 6 according to the invention for tensioning two fabric panels 4, 5 in the relaxed or opened state ( Figure 5 ) and in the tensioned or closed state ( Figure 6 ) each in a side view. The Figures 7 and 8 show an exemplary assembly sequence for assembling the primary lifting bag 20 in the moving member 15 ( Figure 7 ) and for mounting the secondary lifting cushion 28 in the locking element 25 and the locking element 25 in the profile assembly 2 ( Figure 8 ).

The fabric panels 4, 5 and their fastening elements 13 are in the Figures 5 and 6 not shown.

The third exemplary embodiment largely corresponds to the first exemplary embodiment Figures 1 to 3 , which is why the differences are essentially discussed below.

In the third exemplary embodiment, an optimized respective position and mounting or fastening option for the lifting cushions 20, 28 is shown in particular. An advantageous assembly sequence for assembling the lifting cushions 20, 28, which is only to be understood as an example, is shown in FIG Figures 7 and 8 shown (each as assembly step a). The lifting cushions 20, 28 can basically be designed like a hose (cf. Figure 7 ), whereby a pin-shaped body 31 can be passed through the cavity of the lifting cushion 20, 28, which is later to be filled with air or another fluid. The pin-like body 31 can then be fixed together with the lifting cushion 20, 28 in a corresponding receptacle in the movement member 15 or in the locking element 25 (assembly steps b/c in Figure 7 or assembly steps a/b in Figure 8 ). In Figure 5, the secondary lifting bag 28 is in its inflated state and in Figure 6 the primary lifting bag 20 is shown in its inflated state.

In the in the Figures 5 and 6 In the exemplary embodiment shown, the locking element 25 also has a stop 32 for the moving member 15, on which the moving member 15 is located in its open state or in the pre-assembly position (cf. Figure 5 ) can be advantageously supported. However, a stop 32 is only optional and not absolutely necessary.

As already mentioned above, in the exemplary embodiment the Figures 5 to 8 the secondary fuse is designed as a spiral spring (see in particular the assembly example in Figure 8 ). A spiral spring or torsion spring can be particularly advantageous for applying sufficient force to the locking element 25 to move safely into the locking position and to remain there until an intended release occurs (in particular by actuating the secondary lifting cushion 28).

Claims (12)

1. Device (6) for tensioning at least one web of fabric (4, 5), having a tensioning device (14) with a profile assembly (2) extending along a longitudinal axis (L) and a movement member (15) movably mounted in the profile assembly (2), the movement member (15) having at least one fastening section (16) for mechanically fixing a first end of the at least one web of fabric (4, 5) along the longitudinal axis (L) of the profile assembly (2), wherein the movement member (15) is movable in the profile assembly (2) from a pre-assembly position (V) to a final assembly position (E) to move the at least one web of fabric (4, 5) from the pre-assembly position (V) to the final assembly position (E), transversely to the longitudinal axis (L) of the profile assembly (2) during the movement into the final assembly position (E), the tensioning device (14) having a first actuation device (19) for moving the movement member (15) from the pre-assembly position (V) into the final assembly position (E),
   characterized in that
   the first actuation device (19) comprises at least one primary lifting cushion (20), wherein the at least one primary lifting cushion (20) is arranged and aligned in the profile assembly (2) in such a way that a pneumatically or hydraulically induced expansion of the primary lifting cushion (20) causes the movement member (15) to move from the pre-assembly position (V) to the final assembly position (E).
2. The device (6) according to claim 1,
   characterized in that
   the movement member (15) and the profile assembly (2) form a common pivot (17) having an axis of rotation (A) extending along the longitudinal axis (L) of the profile assembly (2) to pivotally support the movement member (15) in the profile assembly (2) for movement between the pre-assembly position (V) and the final assembly position (E).
3. The device (6) according to claim 1 or 2,
   characterized in that
   the movement member (15) is displaceably mounted in a linear guide (29) extending transversely to the longitudinal axis (L) of the profile assembly (2) for the movement between the pre-assembly position (V) and the final assembly position (E).
4. The device (6) according to any one of claims 1 to 3,
   characterized in that
   the clamping device (14) comprises locking means (24) for locking movement member (15) in the final assembly position (E) to block movement of the movement member (15) back to the pre-assembly position (V).
5. The device (6) according to claim 4,
   characterized in that
   the locking device (24) comprises a locking element (25), preferably a pivotable locking element (25), which is movable between an unlocking position and a locking position, wherein the locking element (25) positively blocks a movement of the movement member (15) back into the pre-assembly position (V) in the locking position and releases it in the unlocking position.
6. The device (6) according to claim 5,
   characterized in that
   the locking device (24) has a second actuation device (27) for moving the locking element (25) from the locking position into the unlocking position, the second actuation device (27) preferably having at least one secondary lifting cushion (28), which is arranged and aligned in the profile assembly (2) in such a way that a pneumatically or hydraulically induced expansion of the secondary lifting cushion (28) causes the movement of the locking element (25) from the locking position to the unlocking position.
7. An architectural element (1), in particular a ceiling element or wall element, comprising a device (6) according to any one of claims 1 to 6 and the at least one web of fabric (4, 5).
8. The architectural element (1) according to claim 7,
   characterized in that
   at least one of the webs of fabric (4, 5) comprises a textile glass fiber sheet.
9. The architectural element (1) according to claim 7 or 8,
   characterized in that
   at least one of the webs of fabric (4, 5) is formed from different textile sheet-like structures (11, 12) connected to one another on the longitudinal side of the profile assembly (2), a first of the sheet-like structures (11) extending from the first end of the web of fabric (4, 5) and being connected to a second of the sheet-like structures (12), the first sheet-like structure (11) having a smaller modulus of elasticity than the second sheet-like structure (12).
10. Method for tensioning at least one web of fabric (4, 5), comprising at least the following method steps:

    - providing a tensioning device (14) with a profile assembly (2) extending along a longitudinal axis (L) and a movement member (15) movably mounted in the profile assembly (2);

    - providing the at least one web of fabric (4, 5);

    - fixing the at least one web of fabric (4, 5) to at least one fastening section (16) along the longitudinal axis (L) of the profile assembly (2); and

    - moving the movement member (15) in the profile assembly (2) from a pre-assembly position (V) to a final assembly position (E) to mechanically tension the at least one web of fabric (4, 5) transversely to the longitudinal axis (L) of the profile assembly (2) during movement to the final assembly position (E),

    characterized in that
    at least one primary lifting cushion (20) is pneumatically or hydraulically expanded in order to effect the movement of the movement member (15) from the pre-assembly position (V) to the final assembly position (E).
11. The method according to claim 10,
    characterized in that
    the movement member (15) is locked in the final assembly position € to block movement of the movement member (15) back to the pre-assembly position (V), wherein the at least one primary lifting cushion (20) is preferably pneumatically or hydraulically released after the movement member (15) has been locked in the final assembly position (E).
12. The method according to claim 11,
    characterized in that
    at least one secondary lifting cushion (28) is pneumatically or hydraulically expanded to release the locking of the movement member (15).

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