Sound absorption member

Abstract

The invention relates to a sound absorption element comprising at least one self-supporting insulation panel for acoustically insulating rooms. The insulation panel consists of nonwoven fabric and / or foam. The insulation panel has good inherent rigidity. The invention proposes that a covering be applied to one or more of the outer edges of the insulation panel, enclosing the insulation panel. The covering consists of a material that is rigid in at least one direction, which increases the inherent rigidity of the sound absorption element.

Description

[0001] The invention relates to a sound absorption element according to the preamble of claim 1. Such elements are installed, for example, in offices and private spaces, as well as in buildings in general, to acoustically insulate sound and noise. For this purpose, sound absorption elements are used in particular on walls, ceilings, and floors of rooms, on furniture, as room dividers, etc., to dampen sound in the room and make working, communicating, and living more pleasant for the occupants.

[0002] DE 197 25 712 A1 describes a process for producing panel-shaped soundproofing elements made of fiberboard. DE 20 2016 100 525 U1 describes a sound absorption element made of a self-supporting composite element with at least two sound absorption layers with different sound absorption capacities. DE 20 2019 103 337 U1 describes a panel-shaped acoustic element made of at least two different fleece layers, which serves to reduce reverberation time. The panels described help improve the acoustic properties of the room, but depending on their installation position, they tend to sag over time and are often not particularly aesthetically pleasing.

[0003] DE 10 2014 112 556 A1 describes a sound-insulating element that features a sound reflector on its outer edge, while the panel is referred to as a sound absorber. The sound absorber is made of foam, but can also be made of nonwoven fabric, random layers, textile materials, etc. A second sound absorber may be arranged directly adjacent, although for cost reasons, this one does not have a sound reflector on the outer edge. However, this sound reflector does not serve to improve the inherent rigidity of the sound absorber; rather, a thin aluminum foil, for example, is used for this purpose, which gains its rigidity by interacting with the sound absorber.

[0004] In DE 10 2018 007 848 A1, an absorber core is covered with a fabric covering for sound absorption, which is then clamped into a slot on the back of the absorber core. This covering can improve the optical properties of the sound absorber, but does not increase the inherent rigidity of the absorber panel.

[0005] Finally, DE 20 2010 010 269 U1 shows a metal cassette with absorber material arranged within it. The metal cassette is then covered with a textile surface element on the visible side to create a more appealing overall appearance. The absorber material is not self-supporting, as it is arranged within the metal cassette. Cladding the outer edges to increase the inherent rigidity of the absorber material is not carried out and is not necessary here, as the metal cassette already possesses the required inherent rigidity.

[0006] The object of the invention is therefore to avoid the aforementioned disadvantages and to provide a sound absorption panel that has high inherent rigidity, sags less, and provides an attractive overall appearance. This object is achieved according to the invention by the characterizing features of claim 1, which are of particular importance as follows.

[0007] A covering is arranged on one or more of the outer edges of the insulation board, enclosing the insulation board. This is possible regardless of whether the outer edge is straight or curved. The material of the insulation board has high flexural rigidity in at least one direction, so attaching the covering to the outer edge significantly increases the inherent rigidity of the insulation board. The covering can be made of a conventional edge band, as used in the furniture industry, for example. The covering can be made of a plastic, for example.

[0008] To ensure that the cladding stays in place on the outer edge, it can be glued to the outer edge of the insulation board, for example using hot melt adhesive or another adhesive such as wood glue or acrylate. A wide variety of adhesives are conceivable here, such as hot melt adhesives (e.g. thermoplastics (EVA, acrylates, PE, PP, TPU (thermoplastic polyurethanes), COPES, etc.), PSA (pressure sensitive adhesive), pressure-sensitive hot melt adhesives that are permanently tacky or PUR (reactive polyurethanes that are used up from the melt and then react with atmospheric moisture to form isocyanates), aqueous adhesives (wood glues, PMMA, PVA, acrylates, etc.), solvent-based adhesives (PU, rubbers, etc.) or high-solids adhesives such as cyanoacrylates.

[0009] Instead of, or in addition to, the adhesive, a groove can be provided on the outer edge or on the cladding, which engages with a tongue-like projection on the cladding or outer edge to secure the cladding to the outer edge of the insulation board. The cladding can also be secured to the outer edge of the insulation board by a fusion bond.

[0010] Particularly preferably, the insulation board is provided with a coating on at least one of its outer surfaces. Alternatively, the surface of the insulation board can also be laminated. This further enhances the aesthetics of the insulation board and also its rigidity against sagging. The insulation board can also be completely colored or only colored on its surface. Partial coloring is more cost-effective. By using the cladding on the outer edge of the insulation board, it is not possible to tell whether the coloring is only applied to the surface or whether the material is completely colored. By only coloring the surface, an aesthetically pleasing product is obtained at a reasonable price.

[0011] The insulation board itself can be made of a variety of materials. These include foams, such as melamine foam; honeycomb materials, which can be made of metal, paper, and / or plastic, for example; mineral materials such as mineral fiber fleeces or mineral fiber boards; expanded glass; soft fibers such as wood fibers, natural fibers, synthetic fibers, or a mixture of such fibers; or even a fiber fleece with synthetic and melt fibers. Of course, the insulation board can also be made of a mixture of these materials, for example in the form of a layered composite and / or as a composite with fillers made of the aforementioned materials. Even if the insulation board consists of only one of the aforementioned materials, such as a fiber fleece, it can be constructed from multiple layers, each with different properties.

[0012] The insulation board itself can preferably be constructed in such a way that it already has good inherent rigidity without the cladding. This is particularly advantageous when the insulation board is used to make cladding for rooms or furniture, as these are then less likely to bend or otherwise deform. Due to its good inherent rigidity, the insulation board can be installed as a self-supporting structure. The cladding further increases this inherent rigidity, so that even large insulation boards, for example, on a ceiling, do not bend, even after extended use.

[0013] In a preferred embodiment, one or more recesses are provided on one or more outer edges of the insulation panel. At least one magnet can be inserted into one or more of these recesses. The covering is then attached in such a way that it covers the magnet, so that it is not visible from the outside. This allows the sound absorption element to be easily mounted to a magnetic or magnetizable surface without the use of screws or tools. Installation and removal can be quick and can even be carried out by a layperson. It is also easy to rearrange the sound absorption element. This offers many advantages over the otherwise conventional fixed installation or installation with clamps and screws.

[0014] The sound absorption element according to the invention is not limited to the exemplary embodiments presented here. Further modifications are also encompassed by the inventive concept.

Claims

1. Sound absorption element, with at least one self-supporting insulation panel for the acoustic insulation of rooms, wherein the insulation panel consists of nonwoven fabric and / or foam, wherein the insulation panel has good inherent rigidity, characterized by that a covering is applied to one or more of the outer edges of the insulation board, which surrounds the insulation board, wherein the covering consists of a material which is rigid in at least one direction and which increases the inherent rigidity of the sound absorption element.

2. Sound absorption element according to claim 1, characterized in that the insulation board is coated or laminated on at least one of its external surfaces.

3. Sound absorption element according to one of claims 1 or 2, characterized in that the cladding is glued to the outer edges of the insulation board.

4. Sound absorption element according to one of claims 1 or 2, characterized in thatthe cladding is attached to the outer edges of the insulation board by a fusion joint.

5. Sound absorption element according to one of claims 1 to 4, characterized in that the cladding is applied to the outer edges of the insulation board by frictional and / or positive locking, in particular in the form of tongue and groove.

6. Sound absorption element according to one of claims 1 to 5, characterized in that the insulation board consists entirely or partly of a foam such as melamine foam.

7. Sound absorption element according to one of claims 1 to 5, characterized in that the insulation board consists entirely or partially of a honeycomb material, for example paper, metal and / or plastic.

8. Sound absorption element according to one of claims 1 to 5, characterized in that the insulation board consists entirely or partially of expanded glass.

9. Sound absorption element according to one of claims 1 to 5, characterized in thatthe insulation board consists entirely or partially of a mineral fibre fleece or a mineral fibre board.

10. Sound absorption element according to one of claims 1 to 5, characterized in that the insulation board consists entirely or partly of soft fibres such as wood fibres, natural fibres, synthetic fibres or a mixture of these fibres.

11. Sound absorption element according to one of claims 1 to 5, characterized in that the insulation board consists entirely or partially of a nonwoven fabric with synthetic and melt fibers.

12. Sound absorption element according to one of claims 1 to 11, characterized in that the insulation board consists entirely or partially of a layered composite and / or a composite with fillers of the aforementioned materials.

13. Sound absorption element according to one of claims 1 to 12, characterized in that the insulation board is completely or partially colored.

14. Sound absorption element according to one of claims 1 to 13, characterized in thatone or more recesses are provided on one or more of the outer edges of the insulation panel, in which at least one magnet can be arranged, the cladding covering the magnet.

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