Sound absorption device

Abstract

Sound absorption device, - the device is designed for corner mounting in the corner area of ​​two adjacent room areas of a living or working space, - with a first fastening profile which is designed for mounting on a first surface of the room surfaces, - with a second fastening profile designed for mounting on a second surface of the room surfaces, - with a sound-absorbing front module, ◯ wherein the front module is fastened to the first fastening profile with a first longitudinal side, ◯ wherein the front module is attached to the second fastening profile with a second longitudinal side, ◯ the front module has a sound-insulating felt for the absorption of medium and high frequencies and ◯ wherein the front module is spaced apart from the spatial surfaces so that a gap is formed between the front module and the spatial surfaces, - with a sound-absorbing filling material, ◯ the filling material fills the space formed between the front module and the room surfaces and ◯ the filling material is intended to absorb low frequencies.

Description

[0001] The present invention relates to a device for sound absorption.

[0002] Room acoustics in living and working spaces play a key role in people's well-being, communication, and ability to concentrate. A targeted acoustic design can significantly improve both quality of life and productivity.

[0003] Rooms with poor acoustics often have a lot of reverberation, making it difficult to understand conversations. Poor acoustics amplify distracting noises like keyboard clatter, phone calls, or street noise. Constant noise exposure can lead to headaches, sleep disturbances, and increased irritability. In contrast, good room acoustics create a quieter environment that allows for concentrated, stress-free work.

[0004] Sound absorbers are materials or elements that absorb sound waves, thus reducing reverberation and noise. They contribute significantly to improving room acoustics. In particular, sound absorbers convert sound energy into heat or dissipate it into porous materials, thereby reducing the sound level. State-of-the-art sound absorbers include, for example, wall and ceiling panels, acoustic pictures, or acoustic curtains, as well as the use of sound-absorbing upholstered furniture or carpets to improve room acoustics.

[0005] Sound absorbers should be as efficient as possible, while also blending seamlessly into the interior design of the living or working space in question. Sound absorbers should be perceived less as an obstruction and more as part of the interior design.

[0006] Against this background, the invention is based on the technical problem of providing a sound absorption device that can be compactly integrated into a living or working space and enables efficient sound absorption. The technical problem described above is solved by the features of the independent claim. Further embodiments of the invention emerge from the dependent claims and the following description.

[0007] According to the invention, a device for sound absorption is specified, wherein the device is designed for corner mounting in the corner region of two adjacent spatial surfaces of a living or working space, with a first fastening profile which is designed for mounting on a first spatial surface of the spatial surfaces, with a second fastening profile which is designed for mounting on a second spatial surface of the spatial surfaces, with a sound-absorbing front module, wherein the front module is fastened to the first fastening profile with a first longitudinal side, wherein the front module is fastened to the second fastening profile with a second longitudinal side, wherein the front module has a sound-insulating felt for absorbing medium and high frequencies and wherein the front module is extended at a distance from the spatial surfaces so that an intermediate space is formed between the front module and the spatial surfaces, with a sound-absorbing filling material,wherein the filling material fills the space formed between the front module and the room surfaces and wherein the filling material is intended to absorb low frequencies.,

[0008] The advantage of corner mounting of the device is that the sound absorption device does not restrict the usable living or working space and can therefore be integrated compactly into the living or working space in question.

[0009] The use of two different absorption bodies, namely the front module and the filler material, allows for optimal adaptation of the device to the required absorption properties at the respective installation location. Based on noise measurements and / or a description of the noise sources, the front module and filler material can be selected to achieve optimal sound absorption in the installed state.

[0010] In this case, room surfaces are formed in a known manner on the walls, ceiling or floor of the living or working space in question.

[0011] Corner areas of two adjacent room surfaces are internal or external corners in the interior of the respective living or work space, i.e., those abutting edges or areas where the respective adjacent room surfaces meet, usually at a 90° angle. The corner areas can also be referred to as room edges.

[0012] The device for sound absorption is in particular an edge absorber. An edge absorber is an acoustic component that can be specifically designed for dampening sound in small to medium-sized rooms. Regardless of the size of the room, edge absorbers can generally be used as a bass trap or to improve room acoustics. The edge absorber can be installed along the lower and / or upper edges of walls or corners. The function of an edge absorber is based on the fact that it effectively absorbs sound waves, particularly in the low frequency range (e.g. up to approx. 63 Hz or from approx. 30 Hz to 250 Hz). Compared to flat absorbers, it is more effective at low frequencies because it uses resonance effects where necessary. In other words, the edge absorber uses the physical properties of room edges, where high sound pressures and sound velocities are concentrated due to interference and modal sound fields.These areas are particularly suitable for absorbing low frequencies.

[0013] When we talk about the dampening of sound, the attenuation of noises or the absorption of sound or noises, this refers to the human audible frequency range, i.e. frequencies from approximately 20 Hz to 20 kHz.

[0014] When we speak of low, medium and high frequencies, this refers to a division of the human audible frequency range into the following ranges: - low frequency range (bass range), with frequencies from 20 Hz to 250 Hz, - middle frequency range (mid-range), with frequencies from 250 Hz to 2000 Hz, and - high frequency range (treble range), with frequencies from 2000 Hz to 20000 Hz.

[0015] Accordingly, the filler material is used for damping or sound absorption in the low-frequency range, while the front module is optimized for damping or sound absorption in the mid- and high-frequency ranges. It goes without saying that the filler material also provides a certain degree of damping in the mid- and high-frequency ranges, and conversely, the filler material enables a certain degree of sound absorption in the low-frequency range. However, the primary damping or absorption effect in the low-frequency range is attributable to the filler material, while the primary damping or absorption effect in the mid- and high-frequency ranges is provided by the front module.

[0016] The front module can have a substantially L-shaped cross-section, with a first leg and a second leg, wherein the legs converge in a common butt edge or fold edge. The butt edge or fold edge is spaced from the room surfaces and is arranged on a side of the front module facing away from the filling material. The butt edge or fold edge enables particularly good sound absorption in corner areas or at room edges.

[0017] The first and second legs can form a right angle to each other.

[0018] The space can be cuboid-shaped and have a rectangular or square cross-section.

[0019] The front module can be a flat, plate-shaped module.

[0020] The gap may have a triangular cross-section.

[0021] The front module can be curved in an arc. In particular, the front module can be provided with V-shaped recesses facing the filling material.

[0022] Viewed along a longitudinal extent of the device, two or more front modules can be aligned.

[0023] A gap can be provided between the facing end sections of two adjacent front modules, creating a visible joint. This visible joint can also be referred to as a shadow gap. The shadow gap serves, for example, to compensate for length and depth differences. It solves the problem that measurements cannot always be taken 100 percent accurately on-site. It can compensate for manufacturing and assembly tolerances, as well as for ceilings and walls that are not entirely straight.

[0024] The visible joint can be bridged with an additional front module, wherein the additional front module has a length which corresponds to a fraction of the length of the front modules forming the visible joint, wherein the additional front module is arranged in the longitudinal direction with the front modules forming the visible joint at least in sections overlapping and wherein an outer side of the additional front module facing away from the filling material rests against a respective inner side of the front modules forming the visible joint facing the filling material.

[0025] The additional front module can be used as a visual design element and can be provided in a color that differs from the front modules that form the visible joint.

[0026] The device can be extended across adjacent interior corners of the living or work space, so that the device fills a corner of the room where three adjacent spatial areas meet. The device comprises a corner module, the corner module having a rectangular basic shape and the corner module being located in the corner of the room, or at least two front modules meeting vertically in the area of ​​the corner. This allows for particularly efficient sound absorption.

[0027] In addition to the fastening profiles, at least one module connector can be provided for mechanically connecting two adjacent front modules. The module connector can be located on the inside of the front modules facing the filling material. The module connector serves to fix two front modules to each other longitudinally or to connect them at the end faces in the corner joint.

[0028] The front module can have a length of more than 90 cm and less than 210 cm. For example, the front module can have a standardized length of more than 100 cm and less than 150 cm, in particular a length of 1245 mm.

[0029] The front module can have a height of more than 10 cm and less than 30 cm.

[0030] The front module can have a width of more than 10 cm and less than 30 cm.

[0031] The front module can have a wall thickness of more than 8 mm and less than 20 mm.

[0032] At least one cable can be routed through the gap, with the device serving as a cable duct for the cable. The device can therefore be used to conceal cables, such as power cables and / or data cables, or the like.

[0033] At least one air, water, or refrigerant-carrying line, such as a heating pipe, a water pipe, an air conditioning line, or the like, can run through the gap, with the device serving as a cover for the line. The device can therefore be used to conceal fluid-carrying lines.

[0034] The felt of the front panel can have a higher density than the filling material. In other words, the felt of the front panel can have a first density and the filling material can have a second density, with the first density being greater than the second density.

[0035] It can be provided that the front panel and the filling material consist of the same material, in particular that the filling material consists of loose parts, particles or fragments of this material, such as shreds, chips, strips or the like.

[0036] The filling material may be prefabricated in the shape of a pillow, with the filling material being surrounded by a cover or sleeve enclosing the filling material in order to prevent fraying, separation or loss of fibers of the filling material during handling and assembly.

[0037] The front module can be held in place by positively locking the front module onto a projection of the first mounting profile. The front module can be held in place by positively locking the front module onto a projection of the second mounting profile.

[0038] The front module can be held in place by clamping it into a locking opening of the first mounting profile. The front module can be held in place by clamping it into a locking opening of the second mounting profile.

[0039] The force-locking and / or form-locking fastening can enable tool-free installation of the front module on the fastening profiles.

[0040] The front module can have a receptacle for a light strip, such as an LED strip or the like, wherein the receptacle is in particular designed in the shape of a groove.

[0041] Alternatively or additionally, it can be provided that the first fastening profile has a receptacle for a light strip, such as an LED strip or the like, wherein the receptacle is in particular designed in the shape of a groove.

[0042] Alternatively or additionally, it can be provided that the second fastening profile has a receptacle for a light strip, such as an LED strip or the like, wherein the receptacle is in particular designed in the shape of a groove.

[0043] The front module and / or the filling material may comprise and / or consist of one or more of the materials listed below: PET, LDPE, perforated aluminum, mineral wool, sheep's wool.

[0044] For example, the PET can be made from 50% recycled material. The PET can be flame-retardant. The PET can meet the OEKO-TEX Standard 100. The PET can be breathable and mold-resistant.

[0045] The adhesive may be a one-component adhesive, such as silane-modified polymer adhesives or the like.

[0046] The first fastening profile and / or the second fastening profile may comprise a metallic material or consist of a metallic material, such as aluminum or the like.

[0047] The first fastening profile and / or the second fastening profile may comprise a plastic or consist of a plastic.

[0048] The first fastening profile and / or the second fastening profile may comprise a composite material or consist of a composite material, such as glass fibre reinforced plastic (GRP) or the like

[0049] The first fastening profile and / or the second fastening profile may comprise or consist of a natural material, such as wood or the like.

[0050] The invention will be described in more detail below with reference to the accompanying drawings. They show schematically: Fig. 1 a first device according to the invention in a cross section; Fig. 2 a second device according to the invention in a cross section; Fig. 3 a third device according to the invention in a cross section; Fig. 4 a fourth device according to the invention in a cross section; Fig. 5 a fifth device according to the invention in a partial front view; Fig. 6 the device from Fig. 5 in a perspective view; Fig. 7 front modules with module connectors; Fig. 8 shows a sixth device according to the invention; Fig. 9 a seventh device according to the invention; Fig. 10 an eighth device according to the invention in a cross section.

[0051] Fig. 1 shows a first device 2 according to the invention in a cross section.

[0052] Device 2 serves to absorb sound. Device 2 is mounted in the corner area E of a workroom R. Workroom R is an office space.

[0053] The corner area E or the inner corner E is a spatial edge formed by two adjacent spatial areas R1 and R1 of the work space R. The first spatial area R1 is part of a wall W. The second spatial area R2 is part of a ceiling D.

[0054] The device 2 has a first fastening profile 4. The first fastening profile 4 is mounted on the first room surface R1. The first fastening profile 4 is screwed to the wall W.

[0055] The device 2 has a second mounting profile 6. The second mounting profile 6 is mounted on the second room surface R2. The second mounting profile 6 is screwed to the wall D.

[0056] The device 2 has a sound-absorbing front module 8.

[0057] The front module 8 is attached to the first fastening profile 4 by a first longitudinal side 10, in which the first longitudinal side 10 rests on the first fastening profile 4. Viewed in the vertical direction, the front module 8 is therefore held in a form-fitting manner by resting on the first fastening profile 4.

[0058] The front module 8 is attached to the second fastening profile 6 by a second longitudinal side 12, in which the second longitudinal side 12 rests against the second fastening profile 6. Viewed in the horizontal direction, the front module 8 is therefore held in a form-fitting manner by resting against the second fastening profile 6.

[0059] The front module 8 consists of a sound-insulating felt for absorbing medium and high frequencies.

[0060] The front module 8 is extended at a distance from the spatial surfaces R1, R2, so that an intermediate space 14 is formed between the front module 8 and the spatial surfaces R1, R2.

[0061] The device 2 has a sound-absorbing filling material 16. The filling material 16 fills the space 14 formed between the front module 8 and the spatial surfaces R1, R2.

[0062] The filling material 16 is designed to absorb low frequencies. The density of the filling material 16 is lower than the density of the felt of the front module 8.

[0063] In this case, the front module 8 is a flat, plate-shaped felt plate.

[0064] The filling material 16 consists of mineral wool.

[0065] In the present example, the intermediate space 14 has a triangular cross-section.

[0066] Fig. Figure 2 shows a second device 2' according to the invention in cross-section. To avoid repetition, only the differences from the previously described embodiment will be discussed below, with identical features being assigned the same reference numerals.

[0067] The device 2' for sound absorption according to Fig. 2 has a front module 8' that has a substantially L-shaped cross-section. The front module 8' has a first leg 18 and a second leg 20.

[0068] The intermediate space 14' is cuboid-shaped and has a square cross-section. The filling material 16' also has a similar square cross-section.

[0069] The legs 18, 20 have a common folding edge 22 or fold 22.

[0070] The folding edge 22 is arranged at a distance from the spatial surfaces R1 and R2. The folding edge 22 is arranged on a side 24 of the front module 8' facing away from the filling material 16'.

[0071] The front module 8' is provided from a V-shaped slotted felt plate 8', which is located in the lower left area of ​​the Fig. 2 is shown in isolation in the still flat, unfolded state. A V-shaped slot 26 or a V-shaped groove 26 has been introduced into the felt plate 8' to define the first leg 18 and the second leg 20 of the front module 8'. The second leg 20 has then been pivoted upwards by 90° to form the L-shape of the front module 8' - as indicated by the dashed silhouette of the second leg 20. The first leg 18 and the second leg 20 can be glued together in the area of ​​the slot 26 to ensure the dimensional stability of the now L-shaped front module 8'.

[0072] The front module 8' is therefore preferably made in one piece from a felt plate.

[0073] The folded edge 22 provides particularly good sound absorption in the corner area E, where ceiling D and wall W meet.

[0074] The first leg 18 of the front module 8' rests on the first fastening profile 4.

[0075] The second leg 20 of the front module 8' is enclosed on both sides by a second mounting profile 6' and clamped at the end into the second mounting profile 6'. The second leg 20 of the front module 8' is thus held firmly to the second mounting profile 6'.

[0076] The front module 8' can therefore be mounted without tools by inserting and clamping it to the mounting profiles 4, 6'. The filler material 16' can be inserted into the front module 8' before mounting the front module 8' or pushed lengthwise into the gap 14' after mounting the front module 8' - provided there is sufficient space at the ends of the front module 8' for handling and inserting the filler material 16'.

[0077] Fig. 3 shows a third device 2" according to the invention in a cross-section. To avoid repetition, only the differences from the embodiment described above will be discussed below, with the same features being assigned the same reference numerals.

[0078] The device 2" has a light bar 28. The light bar 28 is an LED bar 28. The LED bar 28 serves to illuminate the work space R. The LED bar radiates essentially in a vertical direction downwards into the work space R.

[0079] Fig. Figure 4 shows a fourth device 2''' according to the invention in a cross-section. To avoid repetition, only the differences from the previously described embodiment will be discussed below, with the same features being assigned the same reference numerals.

[0080] The front module 8''' has a holder 30 for the light bar 28. The holder 30 is groove-shaped.

[0081] Fig. 5 shows a fifth device 2'''' according to the invention in a partial front view. Fig. 6 shows the device 2'''' from Fig. 5 in a perspective view.

[0082] The device 2'''' has two front modules 8', which are aligned along a longitudinal extension L of the device 2''''.

[0083] A distance is provided between mutually facing end sections of the adjacent front modules 8', so that a visible joint 30 or shadow joint 30 is formed.

[0084] The visible joint 30 or shadow gap 30 is bridged with an additional front module 32.

[0085] The additional front module 32 has a length which corresponds to a fraction of the length of the front modules 8' forming the visible joint 30.

[0086] The additional front module 32 is arranged in the longitudinal direction with the front modules 8' forming the visible joint 30, at least in sections, as shown by the dashed line of the Fig. 5 indicated.

[0087] An outer side 34 of the additional front module 32 facing away from the filling material 16' rests against a respective inner side 36 of the front modules 8' forming the visible joint 30, facing the filling material (cf. Fig. 8).

[0088] As in Fig. As shown in Figure 7, in addition to the mounting profiles, a module connector 38 can be provided for mechanically connecting two adjacent front modules 8'. These can be used, for example, to connect adjacent front modules 8' at an angle.

[0089] Fig. 8 shows a sixth device 2''''' according to the invention, which differs from the device described above in that the device 2''''' extends over adjacent corners of the living or working space, so that the device 2''''' fills a corner of the room in which three adjacent spatial surfaces of two walls W and the ceiling D meet.

[0090] The device 2''''' has a corner module 40, wherein the corner module 40 has a rectangular basic shape and wherein the corner module 40 is mounted in the area of ​​the room corner E. To improve clarity, the filling material is in Fig. 8 not shown.

[0091] Fig. Figure 9 shows a seventh device 2'''''' according to the invention, which differs from the device described above in that a vertical front module 42 is additionally provided, which is closed with an end cap 44. To improve clarity, the filling material is in Fig. 9 not shown.

[0092] The front module has a length l1 of more than 90 cm and less than 210 cm ( Fig. 6).

[0093] The front module has a height h1 of more than 10 cm and less than 30 cm Fig. 6).

[0094] The front module has a width b1 of more than 10 cm and less than 30 cm Fig. 6).

[0095] The front module 8' has a wall thickness d1 of more than 8 mm and less than 20 mm ( Fig. 2).

[0096] Fig. 10 shows an eighth device 2''''''' according to the invention in a cross-section. To avoid repetition, only the differences from the previously described embodiment will be discussed below, with the same features being assigned the same reference numerals.

[0097] The front module 8''''''' is curved in an arc and has V-shaped recesses 46 facing the filling material 16'''''''. The V-shaped recesses 46 allow the front module 8''''''' to be bent without compression, so that no wrinkles or warping occur on the side facing the filling material 16'''''''. The intermediate space 14''''''' and the filling material 16''''''' are adapted to the curved shape of the front module 8'''''''.

Claims

[1] Sound absorption device, - the device is designed for corner mounting in the corner area of ​​two adjacent room areas of a living or working space, - with a first fastening profile which is designed for mounting on a first surface of the room surfaces, - with a second fastening profile designed for mounting on a second surface of the room surfaces, - with a sound-absorbing front module, ◯ wherein the front module is fastened to the first fastening profile with a first longitudinal side, ◯ wherein the front module is attached to the second fastening profile with a second longitudinal side, ◯ the front module has a sound-insulating felt for the absorption of medium and high frequencies and ◯ wherein the front module is spaced apart from the spatial surfaces so that a gap is formed between the front module and the spatial surfaces, - with a sound-absorbing filling material, ◯ the filling material fills the space formed between the front module and the room surfaces and ◯ the filling material is intended to absorb low frequencies. [2] Device according to claim 1, characterized by , that - the front module has a substantially L-shaped cross-section ◯ with a first leg and with a second leg, ◯ where the legs converge in a common butt edge or fold edge, ◯ where the butt edge or folding edge is spaced from the room surfaces and ◯ wherein the butt edge or folding edge is arranged on a side of the front module facing away from the filling material. [3] Device according to claim 2, characterized by , that the space is cuboid-shaped and has a rectangular or square cross-section and / or the front module is provided from a V-shaped slit felt plate which has been folded in the region of the V-shaped slit to form the first and second legs, so that the folding edge is formed on a side facing away from the filling material. [4] Device according to claim 1, characterized by that the front module is a flat, plate-shaped module. [5] Device according to claim 4, characterized by that the space has a triangular cross-section. [6] Device according to one of the preceding claims, characterized by that two or more front modules are aligned along a longitudinal extent of the device. [7] Device according to claim 6, characterized bythat a distance is provided between mutually facing end sections of two adjacent front modules, so that a visible joint is formed. [8] Device according to claim 7, characterized by that the visible joint is bridged with an additional front module, - the additional front module has a length that corresponds to a fraction of the length of the front modules forming the visible joint, - wherein the additional front module is arranged in the longitudinal direction with the front modules forming the visible joint at least in sections overlapping and - wherein an outer side of the additional front module facing away from the filling material rests against a respective inner side of the front modules forming the visible joint facing the filling material. [9] Device according to one of the preceding claims, characterized bythat the device extends over adjacent inner corners of the living or working space, so that the device fills a corner of the room in which three adjacent room surfaces meet, - wherein the device comprises a corner module, wherein the corner module has a rectangular basic shape and wherein the corner module is located in the corner of the room or - where at least two front modules meet vertically in the area of ​​the corner of the room. [10] Device according to one of the preceding claims, characterized by that in addition to the fastening profiles, at least one module connector is provided for the mechanical connection of two adjacent front modules. [11] Device according to one of the preceding claims, characterized by , that the front module has a length of more than 90 cm and less than 210 cm and / or the front module has a height of more than 10 cm and less than 30 cm, and / or the front module has a width of more than 10 cm and less than 30 cm, and / or the front module has a wall thickness of more than 8 mm and less than 20 mm. [12] Device according to one of the preceding claims, characterized by , that at least one cable is guided in the intermediate space, the device serving as a cable duct for the cable, and / or at least one air, water or coolant-carrying line runs in the intermediate space, such as a heating pipe, a water pipe, an air conditioning line or the like, the device serving as a covering for the line. [13] Device according to one of the preceding claims, characterized by , that the felt of the front panel has a higher density than the filling material and / or the front panel and the filling material consist of the same material, in particular that the filling material consists of loose parts, particles or fragments of this material, such as shreds, chips, strips or the like. [14] Device according to one of the preceding claims, characterized by that the filling material is prefabricated in the shape of a pillow, wherein the filling material is surrounded by a cover enclosing the filling material in order to prevent fraying, separating or losing fibers of the filling material during handling and assembly. [15] Device according to one of the preceding claims, characterized by , that the front module is held in a form-fitting manner by placing the front module on a projection of the first fastening profile and / or the front module is held in a form-fitting manner by placing the front module on a projection of the second fastening profile. [16] Device according to one of the preceding claims, characterized by , that the front module is held in place by clamping it into a locking opening of the first fastening profile and / or the front module is held in place by clamping it into a locking opening in the second fastening profile. [17] Device according to one of the preceding claims, characterized by , that the front module has a receptacle for a light strip, such as an LED strip or the like, wherein the receptacle is in particular groove-shaped, and / or the first fastening profile has a receptacle for a light strip, such as an LED strip or the like, wherein the receptacle is in particular groove-shaped, and / or the second fastening profile has a receptacle for a light strip, such as an LED strip or the like, wherein the receptacle is in particular groove-shaped. [18] Device according to one of the preceding claims, characterized by that the front module and / or the filling material consist of one or more of the following materials: PET, LDPE, perforated aluminum, mineral wool, sheep's wool. [19] Device according to one of the preceding claims, characterized by that the front module is curved in an arc shape, in particular that the front module has V-shaped recesses facing the filling material. [20] Device according to one of the preceding claims, characterized by , that the first fastening profile and / or the second fastening profile comprise or consist of a metallic material, such as aluminium or the like, or the first fastening profile and / or the second fastening profile comprise or consist of a plastic, or the first fastening profile and / or the second fastening profile comprise or consist of a composite material, such as glass fibre reinforced plastic (GRP) or the like, or the first fastening profile and / or the second fastening profile comprise or consist of a natural material, such as wood or the like.

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