Dismantling system for constructing partition walls and processes

Abstract

The invention relates to a demountable system (10) for constructing partition walls, shaft walls, or linings, particularly in the interior of a building, comprising gypsum-based cladding panels (12) and frame units (16) for holding the cladding panels (12). The cladding panels (12) each have a groove profile (20) at least on a first edge, preferably to be detachably connected to one another on the front side to form a panel assembly. The frame units (16) comprise systems of columns (34) and beams (36), wherein each column (34) connects at least two opposing beams (36). The cladding panels (12) have first connecting elements (22) on their back side, particularly at the level of the groove profile (20), and the frame units (16) preferably have second connecting elements (24) on their columns (34) to detachably connect the cladding panels (12) and the frame units (16).Other aspects concern a process and a gypsum-based cladding panel (12) for use in the system (10).

Description

The invention relates to a system capable of being built back for building up partition walls, shaft walls or front shells, in particular in the interior of a building, and to a method for this. Another aspect relates to a gypsum-based trim panel, particularly for use in such a system.PRIOR ARTFor the construction of partition walls, shaft walls or front shells in the interior of a building, cladding panels based on gypsum, for example gypsum boards, gypsum board boards or gypsum fibre boards, are mostly used. Gypsum boards are particularly widely used, for example, in the size 625 x 2000 mm or 1250 x 2000 mm with wall thicknesses of 12.5 mm. Cladding panels based on gypsum make it possible to produce partition walls, shaft walls or front shells in a lightweight construction. Products having a width of 600 mm are also widely used.In the following, for simplifying the representation of the invention, often only partition walls are referred to, wherein it is always to be understood that the statements also apply to shaft walls or front shells, unless stated otherwise.It is known to use special stator elements with U, C, M or Ω profile cross sections with a central web and flange sections projecting therefrom in order to fasten the plaster-based cladding panels thereto. Stands of this type are standardized, for example, in DIN 18182-1:2015-11 with flange widths of 50 or 35 mm.The fairing plates are secured to the flanges of the post members. Usually, the stand elements are arranged at such a distance from one another that, in the case of the vertical arrangement of the cladding panels, the narrow cladding panels (with the width of 625 mm customary in Germany) are attached to the flanges in an abutting manner and the joints are spread. In the case of wide cladding panels (with the width of 1250 mm customary in Germany), a centrally arranged stator element is usually added for static reasons, to which the cladding panel is additionally fastened. At their joint, two cladding plates are fastened to a stand element. In this case, the cladding plates are connected as close as possible to their edges to the flange of the stand element. The fastening means usually comprise screws, nails, clamps or adhesives. The vertical arrangement of the fairing panels is the standard design for a number of reasons, including better fire protection properties.In exceptional cases or in the case of very low requirements, a horizontal arrangement of the cladding panels in the dressing can also be considered. Due to the row-by-row offset of the cladding panels, these are fastened at two or three points, namely respectively at the joint with a subsequent panel and once centrally.EP 2 295 662 A2 discloses a system for producing a partition wall which comprises at least one upright element having a web and flanges arranged thereon, and also gypsum board panels as partition wall elements. To improve the sound-absorbing properties of the partition wall, it is proposed there to provide both the abutting edge and the position of the fastening means as far as possible at the flange end and to expand the flange width to a range of 55 to 90 mm compared to the DIN standard DIN 18182-1:2015-11.In the known systems, the panel edge tears out during the rear construction of the partition wall because of the fastening means and the split joints. Although such plates can be recycled, they can no longer be reused.OBJECT OF THE INVENTIONThere is a need for improved systems for constructing partition walls, shaft walls or front shells with improved properties in the area of sound insulation, which are also designed to be reusable and reusable.DISCLOSURE OF THE INVENTIONThe object is achieved by a system capable of being reconstructed for constructing partition walls, shaft walls or front shells, and by a method having the features of the independent claims.Advantageous embodiments of the invention are evident from the dependent claims.In a retrogradable system for constructing partition walls, shaft walls or front shells, cladding panels based on plaster and frame assemblies for holding the cladding panels are provided, wherein the cladding panels each have a groove profile at least on a first edge in order to be detachably connected to one another to form a panel assembly, and wherein the frame assemblies comprise systems of supports and beams, wherein one support each connects at least two mutually opposite beams, and wherein the cladding panels each have at least one first connecting element on the rear side.In one embodiment, the frame assemblies each include at least one second connecting element adapted to cooperate with the at least one first connecting element of the trim panels to releasably connect the trim panels and the frame assemblies together.Alternatively or additionally, it is provided in an embodiment that the at least one first connecting element interacts with the supports and / or beams in order to connect the cladding panels and the frame assemblies to one another in a releasable manner.Advantageously, due to the use of the groove profile, no joint filling is necessary by means of a joint filling material. Due to the detachable connection between the trim panels to one another by means of the groove profile and due to the further detachable connection of the trim panels to the frame structural units, the system is designed to be capable of being reversed. The cladding panels can be separated from one another again without damage and are thus reusable.In the following, "capable of being backed" is understood to mean that the individual components can be detached or separated from one another without substantial damage such as tearing away edges or the like.The invention thus provides in particular a reusable partition wall system or a reusable front shell or a reusable shaft wall.The system is preferably suitable for constructing partition walls, shaft walls or front shells, in particular in the interior of a building, wherein this is not restrictive for the invention. In particular, the system is advantageously suitable for producing non-load-bearing partition walls in the interior of a building, for example for delimiting office units. Due to the retrobautability, it is also possible, for example, to build up a partition wall in samples and to offset it again later.However, with the invention it is equally possible to configure outer regions, such as, for example, walls of leaves, construction site boundary walls, walls below free steel beams or the like, with the system capable of being reconstructed.Preferably, the covering panels can be joined to one another on the front side in a joint-free releasable manner by means of the groove profile to form a panel dressing. For this purpose, in an advantageous embodiment, it can be provided that the groove profiles are designed in such a way that groove shoulders delimiting the grooves on the front side of the cladding panels project further than groove shoulders delimiting the grooves on the rear side of the cladding panels. By forming groove shoulders of unequal length, it is achieved in particular that the manufacturing tolerances are located on the rear side of the cladding plates. The front sides can then be joined together without gaps.However, the invention is not limited to this embodiment. Similarly, visible joints can also remain on the front side, between which, for example, a spring element remains visible.The connection of the trim panels and the frame assemblies to one another is effected by means of the at least one first and the at least one second connecting element, wherein the at least one first connecting element is provided on the trim panels and the at least one second connecting element is provided on the frame assemblies. According to an advantageous embodiment, the at least one first connecting element is arranged at the level of the groove profile and extends substantially along the groove. The at least one second connecting element is in this case not restrictive for the invention, but preferably provided on the supports, so that, with a corresponding arrangement of the frame components to the cladding panels, it likewise extends along the groove.In an alternative embodiment, the cladding panels are provided on the rear side substantially perpendicular to the groove profile along their edges with at least one first connecting element which interacts with at least one second connecting element, which can be provided on the carriers preferably but not restrictive to the invention.A combination of the described position of the connecting elements on the cladding panels and the frame assemblies can of course also be provided.It is possible for the cladding plates to have further connecting elements on the rear side, for example, distributed in strip form once in the middle, or additionally or alternatively in strip form at equidistant distances. The further connecting elements can run parallel and / or perpendicular to the first edge with the groove profile. This embodiment is particularly suitable for heavy gypsum-based cladding panels which are to be held by means of a plurality of frame assemblies, for example particularly hard panels.According to an advantageous embodiment, the system comprises connecting strips which correspond to the groove profile, so that the connecting strips can be inserted releasably into the groove profiles as external springs. Preferably, connecting strips are manufactured on the basis of plastic, for example PE, HDPE, PET or PVA. Alternatively or additionally, metallic connecting strips, for example aluminum profiles or sheet metal profiles, can be provided. In an advantageous, particularly simple embodiment, the connecting strips can have a simple I-profile, which can be produced advantageously particularly cost-effectively as a component by extrusion. It is particularly advantageous in the system with external springs that they can be inserted into the grooves relatively securely without damage.The system with the connecting strips advantageously comprises at least two cladding panels based on gypsum with in each case at least one first edge with a groove profile, wherein the connecting strip can be inserted into the grooves of both groove profiles with an exact fit in order to connect the cladding panels to one another. The cladding panels preferably also have a groove profile on the edge opposite the groove profile, which groove profile is formed on the first edge in the same way as the groove profile.Alternatively or additionally, it can be provided that the cladding panels each comprise a tongue profile at least on the edge opposite the groove profile, which tongue profile corresponds to the groove profile. In this case, the system preferably comprises at least two cladding panels based on gypsum, each having a tongue-and-groove profile, wherein the tongue of a cladding panel can be inserted into the groove of the second cladding panel with an exact fit.Both described systems, i.e. with connecting strips or with spring profile in the cladding panel, and also the mixed forms of these systems can be freely expanded in at least one spatial direction. The cladding panels based on gypsum can be designed, for example, to be high in space, so that only the connection to the floor or the ceiling can take place on the top and bottom sides.In one embodiment of the invention, the cladding plates each have a circumferential groove profile. In this case, the system comprises, as described above, connecting strips, preferably based on plastic, which correspond to the groove profile, so that the connecting strips can be inserted detachably into the groove profile. At the joint of the cladding panels, the connecting strips are provided for connection. The system is designed to be arbitrarily large in two spatial directions.In a further embodiment, a circumferential tongue-and-groove profile can be provided in the cladding panels. In this case, two edges with the grooves are arranged adjacent to each other, wherein "adjacent" means that they meet at one corner of the plate. Furthermore, two springs are arranged adjacent to one another, so that they meet at one corner of the cladding panel. This system can also be expanded to any desired size in two spatial directions.The supports of the system comprise telescopic rails in an advantageous embodiment for positioning the beams with adjustably variable distance from each other. It is provided here that the distance of the carriers from one another can be adjusted by fastening elements, preferably first clamping, clip or snap elements, which fix the telescopic rails relative to one another. In this way, the system is made adaptive with respect to the space height. The spacing of the carriers is preferably releasably adjustable, wherein this can be effected, for example, particularly simply by a clamping bracket. Clips or snap-on elements have the advantage of increased stability, but often also require tools for subsequent solution. By manipulating the clamping, clip or snap elements, the distance of the carriers from one another can be adjusted advantageously by only one person.The telescopic rails can be formed in particular from steel sheet profiles which can be pushed into one another. They can have a U-shaped cross section, for example, wherein a U-shaped cross section is formed somewhat smaller than the second U-shaped cross section, so that they fit into one another. Alternatively, it is of course possible to provide further profile shapes, in particular H profiles, but also C, M or Ω profiles, wherein in the embodiment a first rail with a somewhat smaller profile cross section than the second rail is configured as telescopic rails with an adjustable length, in each case, so that these fit into one another. In known manner, the flanged ends of the rails may be provided with beads and the like to improve the rigidity of the supports.The frame structural units can be planking on one side or on both sides with the cladding panels. In the first case, the frame module cladding plate system is suitable in particular as a front shell. In the second case, the trim panel-frame assembly trim panel system is particularly suitable as a partition wall.Furthermore, it is possible to planking the frame assemblies also in two layers, wherein here the connection of the two layers of cladding panels to one another is in turn preferably effected by means of retrogradable connecting elements, which are described in more detail below.In one embodiment of the invention, the carriers have stop surfaces which can be positioned perpendicular to the supports and by means of which the frame assemblies can be supported against floor or ceiling surfaces of a building. The carriers are preferably articulated to the supports by means of joints, so that they have at least one degree of freedom of movement relative to the supports. In an advantageous embodiment, the joints are such that the carriers have exactly one degree of freedom of movement with respect to the supports, namely an adjustment angle. In an advantageous embodiment, the carriers are articulated movably in at least two positions, wherein a first position of the carrier with the stop surfaces substantially parallel to the supports represents a transport position in which the frame assemblies take up little volume. A second position is such that the beams have stop surfaces running perpendicular to the supports and can thereby support the frame assembly against floor or ceiling surfaces of the building.The frame structural units can preferably be connected to one another by means of second clamping, clip or snap elements to form a frame. Such a frame has the advantage that it consists of little material and can thus be produced very cost-effectively. In the sense of the present invention, it is preferred that the frame structural units can be detachably connected to one another. Clamping, clipping or snapping elements are preferred, which can be released again manually or with a tool without permanent deformations or tearing of the carriers occurring. The system advantageously comprises a few separate individual parts at this point. On the construction site, such a frame can be constructed relatively quickly with the aid of the advantageous telescopic rails and by clipping the frame assemblies together. Furthermore, simple mounting of the cladding panels on a completely erected frame is very easily possible by means of only a few handles.The frame assemblies can be formed, for example, from unalloyed steel, preferably with a zinc coating, for protection against corrosion. Such frame assemblies are particularly stable and durable for the assembly of the trim panels.According to an advantageous embodiment of the invention, the groove profiles are designed in such a way that groove shoulders delimiting the grooves on the front side of the cladding panel project further than groove shoulders delimiting the grooves on the rear side of the cladding panels. This embodiment enables a panel dressing free of gaps on the front side.In the context of the present disclosure, a joint is understood to mean an opening of at least 2 mm width. Smaller distances between the plates than those of 2 mm width are referred to herein as hair gaps or gap-free. A "visible joint" is understood to mean a joint which is larger than a hair joint.According to a further advantageous embodiment of the invention, the groove profiles are designed in such a way that groove shoulders delimiting the grooves on the rear side of the cladding panel project further than groove shoulders delimiting the grooves on the front side and a spring shoulder projects on the front side beyond a rear spring shoulder, wherein a joint-free panel assembly is formed on the front side, forming a rear joint. This special configuration of the grooves or of the tongue-and-groove profile facilitates the insertion of a second plate into the already mounted first plate.While in many applications a joint-free panel dressing is advantageous and desirable, especially for acoustic and thermal considerations, it may be advantageous for other practical reasons to produce sight joints. For example, sight lines can absorb changes in length of panels due to thermal and / or moisture expansion without the occurrence of visually recognizable crack formation.The grooves can be provided with insert slopes and / or corner radii. For this purpose, the groove shoulders can be expediently designed and have, for example, rounded portions, beveled portions or beveled portions and the like.In systems in which the cladding plates have springs, these can likewise have bevels, bevels or rounded portions. A large number of embodiments are known to the skilled person. As a particularly preferred embodiment of the spring, it has a first parallel part, a subsequent oblique part and a round section. In particular, the springs of two adjacent side edges of a gypsum board can also be formed in a beveled or rounded manner in the contact region.Within the scope of the present invention, the retrogradability of the system is of primary importance. To avoid breaking the tongues and groove shoulders, it is preferred if the groove depth is formed to be less than the plate thickness. A groove depth of approximately 20% to 80%, preferably 30 to 50%, of the plate thickness is practicable here.Particularly preferably, the groove can have a width of approximately 1 / 3 of the plate thickness and be formed on the front side and on the rear side with groove shoulders, which in particular preferably have the same thickness.On the rear side, a joint of up to 2 mm or up to 3 mm can be present between the groove shoulder and the edge of the cladding panel. However, the invention is not limited to this.Likewise, because of the break-off safety, it is preferred in systems in which the cladding plates have springs if the springs have a width of 20 to 80%, preferably 30 to 50%, of the plate thickness.Such dimensions have proven in practice to be sufficiently break-resistant with respect to the groove shoulders and tongues.In an advantageous embodiment, the groove depth is formed with some play relative to the tongue, i.e. is formed approximately up to 20% deeper than the width of the tongue. It is thus also possible to provide a resilient insulating material between the groove and the tongue, preferably a non-adhesive insulating material, in particular in the form of sealing tapes or the like.The front and / or rear edges of the cladding panels are preferably rounded and / or beveled. The beveled or rounded edges of the cladding panels avoid damage during transport, storage and processing. The radius or the slope is preferably formed in a width of up to 10 mm, more preferably up to 5 mm, even more preferably up to 3 mm, and even more preferably up to 2 mm. Relative to the plate thickness, it has been shown that a range of up to 20% has proven to be advantageous here.The preferred embodiments of the connecting elements comprise releasable connections, so that the system is capable of being reconstructed. In a preferred embodiment of the invention, two first and second connecting elements each form a hook and loop fastener with one another. Alternatively or additionally, in each case two first and second connecting elements or the first connecting elements can form a magnetic bond with one another with the stator or carrier.The hook and loop fasteners have proven particularly advantageous with respect to the measured acoustic properties. It is assumed that the hook and loop fastener acoustically decouples the system components from one another. The hook and loop fastener dressing can be arranged in any desired manner, for example hook tapes can be provided on the covering panels and fleece tapes on the frame structural units or vice versa. Due to its high strength, a mushroom head dressing is still further preferred.The described system may be assembled or packaged as a set.The system can comprise further elements, in particular for example a back-upable wall covering, which is arranged on the preferably front-side joint-free panel dressing. The back-buildable wall covering is, for example, a removable glass fibre covering. Such wall coverings are known to the person skilled in the art from the prior art.In particular, in the case of frame structural units which are planed on both sides, acoustic insulation panels formed in a known manner, for example, from mineral wool or hard plastic foams can be / are used between the cladding panels, which panels can alternatively or additionally also be designed for the thermal insulation. Acoustic walls can advantageously be formed in this way.The gypsum-based cladding boards are, for example, gypsum boards, gypsum board boards or gypsum fibre boards. In particular, the invention is usable for gypsum boards having a thickness of 12.5 mm, a width of 600, 625 or 1250 mm and a length of 1 m, 2 m or 3 m.According to a further aspect of the invention, a method for constructing partition walls, shaft walls or front shells by means of one of the described systems comprises at least one step of detachably connecting the cladding panels to the frame assemblies to one another, so that the cladding panels are assembled to one another preferably on the front side without gaps to form a panel assembly.Two successive covering panels are preferably connected to one and the same frame module and extend next to one another. Depending on the requirements of the statics and if necessary, the cladding panels can each be connected, for example, centrally to further frame structural units. In particular, the system is ideally constructed without the use of an adhesive.The features described above with respect to the system are also to be understood as disclosed with respect to the method, wherein a repeated description of the individual features is omitted.In particular, the first and second connection elements are preferably connected by means of a hook and loop fastener or a magnetic composite.In the method, a back-buildable wall covering is preferably fastened to the preferably front-side joint-free panel dressing. The plate assembly can already be formed without joints on the front side by simply assembling the cladding plates to form the plate assembly with corresponding dimensioning of the grooves and tongues or connecting strips.A further aspect of the invention relates to a partition wall, a shaft wall or an attachment shell which is produced by carrying out the method.Yet another aspect of the invention relates to a plaster-based trim panel having at least at a first edge a groove profile for use in any of the systems described above. The groove profile can be produced by any desired method, for example by forming, milling or sawing.The exemplary embodiments of the invention are described in more detail below with reference to figures. The following are shown:BRIEF DESCRIPTION OF THE FIGURESThe following show: FIG. 1 is a sectional view of a detail of a partition wall from above, FIG. 2 is a further sectional view of a partition wall from above, FIG. 3 ashows a frame assembly with second connecting elements according to a first embodiment, FIG. 3 bshows a frame assembly with second connecting elements according to a second embodiment, FIG. 4 ashows a cladding panel with first connecting elements according to a first embodiment for a vertical standard assembly, FIG. 4 bshows a cladding panel with first connecting elements according to a further embodiment for horizontal mounting, FIG. 4 cshows a cladding panel with first connecting elements according to yet another embodiment, FIG. 4 d shows a cladding panel with first connecting elements according to yet another embodiment, FIG. 5 a shows a sectional view through a joint region of two cladding plates with a tongue-and-groove profile according to one embodiment, FIG. 5 b is a sectional view through a joint region of two external spring cladding plates according to an embodiment; and FIG. 6 is a graph showing the evaluated sound attenuation amount of partition walls according to the invention and the comparison system.EMBODIMENTS OF THE INVENTIONIn the following description, the same reference numerals are used for the same and identically acting parts. A repeated description of identical or identically functioning components is not absolutely necessary. To facilitate understanding, the figures do not necessarily represent the subject matter to scale.The terms "top", "bottom", "horizontal", "vertical" and the like are understood as in conventional house construction according to the position of the floor, ceiling of a building.FIG. 1 shows a section through a partition wall as a possible embodiment of the invention in the application of the system 10 capable of being restored according to the invention in a partial region in sectional view, which represents a connecting region of in each case three cladding panels 12 on two frame structural units 16 which are planted on both sides.In the joint region 32, the cladding panels 12 each have a groove profile 20, wherein a tongue 14, here in the form of an external tongue 14 in the form of a connecting strip 18, is inserted into the respective groove 46 of the adjoining cladding panels 12 in order to connect the cladding panels 12 to one another.The frame assembly 16 comprises a web 26, at the ends of which two flanges 28 project substantially perpendicularly to the web 26. The flanges 28 are each provided with a flange 30 to provide further stability to the frame assembly 16. Bead structures or the like can also be provided in the region of the web 26 for stiffening purposes (not shown).The cladding panels 12 are each provided with a first connecting element 22, for example with a hook strap for forming a hook and loop fastener. The second structural component for forming the hook and loop fastener, such as a nonwoven tape, is formed by the second connecting element 24 that is attached to the frame assembly 16 at the flange 28.While in the embodiment shown the second connecting element 24 is fastened to the flange 28 near the web, in further embodiments not shown the second connecting element 24 can be fastened to the flange 28 centrally or far from the web, i.e. at the end side to the flange 28.To simplify assembly, the first connecting elements 22 are arranged in the system such that in each case only at least one connecting element 22 is arranged on only one cladding plate 12 in the joint region 32. A second trim panel 12 to be subsequently attached is mounted during the mounting to the first trim panel 12 previously fastened to the second connecting element 24 by the at least one connecting element 22 while being inserted in a rotating manner and fastened to the connecting element 24 of the next frame assembly 16 by the at least one connecting element 22. In the case of tongue-and-groove cladding panels, the at least one first connecting element 22 is preferably arranged on the edge of the groove parallel to the tongue 14 (cf. FIGS. 4 a, 4 b, 4 d ).The system 10 shown is formed such that it can be backed up on account of the detachable connection of the first and second connecting elements 22, 24 to one another. The groove profile 20 of the respective cladding panel 12 also contributes to this, since the cladding panels 12 can be detached from one another on account of the simple plugging together of the groove 46 and the tongue 14.In the joint region 32, the cladding panels 12 are designed here as joints, by way of example, but not as limitations of the invention. While the abutment region 32 is arranged centrally on the flange 28 in the exemplary embodiment shown, in further embodiments not shown the abutment region 32 can lie close to the web on the flange 28 or remote from the web, i.e. at the end on the flange 28.The intermediate region between the cladding panels 12 shown at the top in FIG. 1 and the cladding panels 12 shown at the bottom can expediently be filled with sound-absorbing panels or heat-insulating elements in a known manner.FIG. 2 shows a section through a partition wall between two walls 11 as a possible embodiment of the invention in the application of the inventive retrogradable system 10.The installation of the system 10 begins with a wall connection profile 17, here on the right in the figure, which is fastened to a wall 11. The further frame assemblies 16 are then connected in grid dimensions. A wall connecting plate 13 is cut to size and connected to the wall 11 by means of a sealing tape 15 (Kurriband). The wall connection plate 13 is connected to the wall connection profile 17 by means of at least one first connecting means 22 with at least one second connecting means 24, which is arranged on the wall connection profile 17. The wall connection plate 13 is then connected to a first frame element 16 by at least one further first connecting means 22. Thereafter, the further trim panels 12 and frame elements 16 are mounted as described above. For the second wall connection, here on the left in the image, a second wall connection panel 13 cut to size is fastened to a further wall connection profile 17 connected at a variable distance from the last frame element 16 by at least one first connecting means 22 and mounted on the last cladding panel 12 analogously to the cladding panels 12 fastened in the grid dimension. Here too, a sealing tape 15 is used for the edge termination.FIGS. 3 aand 3 b show different embodiments of frame assemblies 16 each with a support 34 which is formed from two telescoping rails 38 which are displaceable one inside the other. The telescopic rails 38 can be locked relative to one another by means of a fastening element 42 so that carriers 36 articulated on the support 34 can be locked at an adjustably variable distance from one another.In the embodiment shown, the two supports 36 are each secured terminally to the support 34 by means of a joint 40.The carriers 36 are here designed as U-profiles, by way of example but not by way of limitation for the invention, which can be tilted about the joint 40, so that in a transport position, not shown, they can be aligned substantially parallel to the support 34. In the installed position shown in FIGS. 3 aand 3 b, the carriers 36 form stop surfaces 44 which can press against a floor or a ceiling of a building.Due to the clamping, clipping or snapping element here represented in the drawings in a rudimentary manner by the fastening element 42, the frame assembly 16 can be set up very easily manually by a single person.In the embodiment shown in FIG. 3 a, the frame assembly 16 preferably has, in the case of pre-production, two connecting elements 24 which are arranged on the two telescopic rails 38 when only mounted on the front side or four connecting elements which are arranged when mounted on the front and rear sides. This corresponds to the illustration in FIG. 1. This embodiment also corresponds to the embodiments of the trim panels 12 illustrated in FIGS. 4 a, 4 band 4 d, with the arrangement of the first connecting elements 22 illustrated there substantially along the groove profile 20 of the first edge of the trim panel 12.It is also possible to dispense with the attachment of the at least one second connecting element 24 during preliminary production and to apply this to the frame module only after assembly in the installation situation. In this case, preferably, when only a front side is attached, one or when a front and rear side is attached, two connecting elements 24 are arranged on the supports 34.In FIG. 3 b, an alternative embodiment is shown, in which the second connecting elements 24 are arranged on the carriers 36. This embodiment is above all compatible with the embodiment of the cladding panel 12 illustrated in FIG. 4 c, which comprises horizontally running first connecting elements 22.The embodiments shown in FIGS. 3 aand 3 b have their advantages and disadvantages. While the adjustability of the telescopic rails could be limited in particular for the preliminary production in FIG. 3 a by the second connecting elements 24, the embodiment shown in FIG. 3 b requires cladding panels 12 which are formed substantially as high as the frame structural unit 16, since the cladding panel 12 is retained only on the upper and lower sides.It is of course possible for the previously described embodiments to be combined with one another differently from those illustrated in FIGS. 3 aand 3 band 4 a, 4 b, 4 cand 4 d, respectively.The frame assemblies 16 illustrated in FIGS. 3 aand 3 bmay deviate considerably in their dimensions from the illustrations in further embodiments, not illustrated. In particular, the beams 36 may be sized the same or even larger than the posts 34, if appropriate.FIG. 4 ashows a cladding panel 12 according to a first embodiment of the invention with a circumferential tongue-and-groove profile for vertical standard assembly. The encircling tongue-and-groove profile comprises two grooves 46 which meet at one corner. Furthermore, the tongue-and-groove profile comprises two tongues 48, which likewise meet at two at one corner. Along one of the grooves 46, the first connecting element 22 is arranged in each case substantially over the entire height of the cladding panel 12. The first connecting element 22 is, for example, a hook strap for forming a hook and loop fastener.FIG. 4 bshows a cladding panel 12 according to a further embodiment of the invention with a circumferential tongue-and-groove profile for unusual horizontal mounting. It can be clearly seen that, in comparison with the embodiment in FIG. 4 a, the first connecting element is arranged on a short edge rotated by 90°. For support and for connection to a further frame module 16, a further first connecting element 22 is provided centrally.In the embodiment in FIG. 4 c, two first connecting elements 22 are provided in the corner regions of the groove edge and two further connecting elements 22 of the cladding panel 12 offset from the corner regions of the tongue edge. In the embodiment shown, these extend substantially horizontally and not vertically, as in FIG. 4 a. The tongue-and-groove profile here comprises a groove 46 only on the long edge and a tongue 48 on the opposite long edge. Such tongue-and-groove profiles can also be provided in the embodiments illustrated in FIGS. 4 aand 4 d. Likewise, a circumferential tongue-and-groove profile illustrated in FIGS. 4 aand 4 dmay be provided in the embodiment in FIG. 4 c.In the further embodiment shown in FIG. 4 d, vertically extending first connecting elements 22 are provided on the groove edge, namely a plurality of small-area first connecting elements 22 one above the other in order to save material. The trim panel 12 is also shown in a typical wider variant and includes still further first connecting elements 22 for stabilization in the middle, which can be connected to a further frame module 16.Instead of the tongue-and-groove profiles shown in FIGS. 4 ato d, encircling groove profiles can also be provided, wherein the cladding panels 12 are then connected to one another by means of external connecting strips 18, as shown in FIG. 1.FIG. 5 ashows a joint region 32 of two cladding plates 12 in an enlarged view.A first cladding plate 12 is provided here with a groove profile 20 which comprises a groove 46 and two groove shoulders 50 delimiting the groove 46. The groove 46 and the groove shoulders 50 are each formed substantially identically thick and extend over the thickness of the cladding panel 12. At a front side 52, the cladding panels 12 abut each other without gaps. In the region of contact of the tongue 14 with the groove base, a gap 56 remains. In the embodiment shown, a gap 56 also remains on the rear side 54. The tongue 14 is provided on the front side with appropriate bevels 58, in order to reduce unwanted breaking at the edges and the risk of injury to the user. The groove shoulder 50 is also provided with a chamfer 58 to facilitate insertion of the spring 14 into the groove 46.In the embodiment shown, a groove shoulder 50 delimiting the groove 46 protrudes further on the rear side 54 than a groove shoulder 50 delimiting the groove 46 on the front side 52. At the same time, a spring shoulder of a second cladding plate 12 protrudes on the front side beyond the rear spring shoulder of the second cladding plate 12. On the front side, a joint-free panel dressing is formed, forming a rear-side joint.FIG. 5 bshows an alternative embodiment of the joint region 32 of two cladding plates 12 with an external tongue 14 in the form of a connecting strip 18. These can be formed, for example, circumferentially. The front and rear edges of the cladding panels 12 are provided here with rounded portions 60 in order to reduce the risk of injury and to avoid fractures. On the front side, the cladding panels 12 do indeed abut against one another, but a hairline 62 remains on the rear side, a gap 56 in the form of a line.In the embodiment shown, the groove shoulders 50 on the front side 52 of the cladding panels 12 delimiting the groove 46 each project further than the groove shoulders 50 on the rear side 54 delimiting the groove 46.It is of course possible for the features to be combined with one another differently from those illustrated in FIGS. 5 aand 5 b.EXAMPLEThe sound attenuation measure describes the ability of a component or medium to isolate sound. In one experiment, the sound attenuation measure of a system according to the invention was determined and compared with that of a comparative system.In the system according to the invention, a "JuuNoo SilentLick-wall" system with adjustable supports and beams was used, which has a CW profile (C-wall profile) with a web width of approximately 75 mm.In the comparison system, a frame unit in the form of a metal stand wall with a CW profile (C-wall profile) with a web width of about 75 mm was used.The flanges of the frame assemblies were each covered vertically on the front and rear sides with bulky cladding panels with gypsum board "Rigips Habito 12.5" having a thickness of about 12.5 mm. Furthermore, a mineral wool insert "Saint-Gobain Acoustic TP 1" with a width of 60 mm corresponding to the dimensioning customary in practice was inserted between the gypsum board. The plate width is matched to the grid dimension of the 600 mm "JuuNoo SilentLick-wall" system.In the comparison system, vertically bulky gypsum board without edge profiling with a grid dimension of 600 mm was fastened in a known manner by means of quick-action construction screws to the frame assemblies, namely at the joint two gypsum board at a flange.In the system according to the invention, the gypsum board was provided with a groove profile on the first longitudinal edge and with a tongue profile on the second longitudinal edge and was fastened to the framing system by means of a hook and loop fastener, as shown in FIG. 1.FIG. 6 shows a logarithmic diagram for determining an evaluated sound insulation measure RW (in decibels, dB) for a partition wall region, i.e. for a wall system, when using the system according to the invention and the comparison system from the example.Shown in FIG. 6 is the result of measurement of airborne sound insulation. On the ordinate, a sound attenuation measure R (sound reduction index, in decibels, dB) is plotted. A third band center frequency f (frequency, in hertz, Hz) is plotted on the abscissa. For the measurement, the sound attenuation measure R for the individual frequencies was measured at Terz intervals and the mean value was formed in each case.Curve (1) shows the result of the system according to the invention, curve (2) the comparison system. It can be seen that the system according to the invention has a constantly somewhat higher sound attenuation measure from 125 Hz than the comparison system. The break-in in in the range of 160 Hz present in the comparison system is completely absent in the system according to the invention, which brings particular advantages in the range of deep step noise. In the range from 200 Hz to 315 Hz, there is constantly a value which is better by about 5%. In the range from 400 Hz to 2500 Hz, a value is present which is higher by about 10%, then in the range above 2500 Hz, a value which is higher by about 20%.The evaluated sound attenuation measure R W was determined in accordance with DIN EN ISO 717-1:2021-05.For this purpose, the curves were brought into coincidence with a predetermined reference curve and the value which the displaced reference curve has at 500 Hz was determined. The evaluated sound attenuation amount R W is corrected by spectrum adjustment values (in this case) C and C tr. These values take into account the frequency characteristic of different sound sources, wherein the sound attenuation measure is reduced by this value. Incidentally, the determination method for the evaluated sound attenuation amount R W is a normalized test familiar to those skilled in the art.The measurement data shown in FIG. 6 result for the evaluated sound attenuation measure, whereinR W the evaluated sound attenuation measure in dB, andC, C tr spectrum adjustment values in dB.Thus, the system according to the invention has a substantially improved sound insulation.REFERENCE NUMERALS10 System; 11 wall; 12 trim panel; 13 wall connection panel; 14 tongue; 15 sealing strip; 16 frame module; 17 wall connection profile; 18 connecting strip; 20 groove profile; 22 first connecting element; 24 second connecting element; 26 web; 28 flange; 30 flange; 32 joint region; 34 support; 36 support; 38 telescopic rail; 40 joint; 42 fastening element; 44 stop surface; 46 groove; 50 groove shoulder; 52 front side; 54 rear side; 56 gap; 58 chamfer; 60 rounding; 62 hair jointReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedEP 2 295 662 A2

[0007] Cited Non-Patent LiteratureDIN 18182-1:2015-11

[0004] DIN standard DIN 18182-1:2015-11

[0007] DIN EN ISO 717:1:2021-05

[0110]

Claims

A rear-structureable system (10) for constructing partition walls, shaft walls or front shells, in particular in the interior of a building, comprising - cladding panels (12) based on gypsum and - frame assemblies (16) for holding the cladding panels (12), wherein the cladding panels (12) each have a groove profile (20) at least on a first edge, in order to be connected to one another preferably in a joint-free manner on the front side to form a panel assembly, and wherein the frame assemblies (16) comprise systems of supports (34) and supports (36), wherein in each case one support (34) connects at least two supports (36) opposite one another, and wherein the cladding panels (12) each have at least one first connecting element (22) on the rear side, and - wherein the frame assemblies (16) preferably each have at least one second connecting element (24) at their supports (34), which are suitable for being connected to one another in a joint-free manner, to cooperate with the at least one first connecting element (22) of the fairing panels (12) to detachably connect the fairing panels (12) and the frame assemblies (16) to each other, and / or - wherein the at least one first connecting element (22) cooperates with the supports (34) and / or beams (36) to detachably connect the fairing panels (12) and the frame assemblies (16) to each other.System (10) according to claim 1, - wherein the system (10) comprises connecting strips (18), preferably based on plastic, which correspond to the groove profile (20), such that the connecting strips (18) can be inserted releasably into the groove profile (20) as tongues (14), and / or - wherein the cladding panels (12) each comprise a tongue profile at least on the edge opposite the groove profile (20), which tongue profile corresponds to the groove profile (20).The system (10) according to any one of the preceding claims, wherein the cladding plates (12) each have a circumferential groove profile (20) or a circumferential groove-tongue profile.The system (10) according to any one of the preceding claims, wherein the supports (34) comprise telescopic rails (38), in particular formed from steel sheet profiles which can be pushed into one another, in order to position the carriers (36) at an adjustably variable distance from one another, and wherein the distance of the carriers (36) from one another is preferably releasably adjustable by first clamping, clip or snap elements, which fix the telescopic rails (38) with respect to one another.The system (10) according to any one of the preceding claims, wherein the carriers (36) have stop surfaces (44) positionable perpendicular to the supports (34), by means of which the frame assemblies (16) can be supported against floor or ceiling surfaces of a building, and wherein the carriers (36) are preferably articulated to the supports (34) by means of joints (40), so that they have at least one, in particular exactly one, degree of freedom of movement relative to the supports (34).System (10) according to one of the preceding claims, wherein the groove profiles (20) of the cladding panels (12) are configured such that groove shoulders (50) delimiting the grooves (46) protrude further on the front side (52) of the cladding panels (12) than groove shoulders (50) delimiting the grooves (46) on the rear side (54), wherein a joint-free panel bond is formed on the front side with formation of a rear-side joint.The system (10) according to any one of the preceding claims 1 to 5, wherein the groove profiles (20) of the cladding panels (12) are configured such that groove shoulders (50) delimiting the grooves (46) project further on the rear side (54) of the cladding panels (12) than groove shoulders (50) delimiting the grooves (46) project on the front side (52) and a spring shoulder projects on the front side beyond a rear spring shoulder, wherein a joint-free panel assembly is formed on the front side to form a rear joint.The system (10) according to any one of the preceding claims, wherein the front and / or rear edges of the cladding panels (12) are preferably rounded and / or beveled in a width of up to 10 mm, more preferably up to 5 mm, even more preferably up to 3 mm and even more preferably up to 2 mm.The system (10) according to any one of the preceding claims, wherein the first and second connection elements (22, 24) form a hook and loop fastener or a magnetic composite with each other, or wherein the first connection elements form a magnetic composite with the supports (34) and / or beams (36).The system (10) according to any one of the preceding claims, wherein the system (10) has a back-upable wall covering on the preferably front-side joint-free panel dressing.The system (10) according to any of the preceding claims, wherein the facing boards (12) are based on gypsum, gypsum board, gypsum board or gypsum fibre board.Method for constructing partition walls, shaft walls or front shells, in particular in the interior of a building, by means of a system (10) according to one of the preceding claims, wherein the cladding panels (12) are detachably connected to the frame assemblies (16) and are joined together detachably and preferably on the front side without gaps to form a panel assembly.Method according to claim 12, wherein the connection of the first and second connection elements (22, 24) takes place by means of a hook and loop fastener or a magnetic composite or wherein the first connection elements (22) form a magnetic composite with one another with the supports (34) and / or beams (36).Method according to claim 12 or 13, wherein a back-buildable wall covering is fastened to the preferably front-side joint-free panel dressing.A plaster-based trim panel (12) having at least at a first edge a groove profile (20) for use in a system (10) according to any one of the preceding claims 1 to 11.

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