Sound insulation element

Abstract

A soundproofing element (1) comprising a plurality of sound absorbers (2) arranged in series and at least one rail (3) is provided, wherein each sound absorber (2) has at least one continuous groove (5) on a first side (4), wherein the at least one rail (3) is arranged in the grooves (5) of the sound absorbers (2), which connects the sound absorbers (2) arranged in series.

Description

[0001] The invention relates to a soundproofing element according to the preamble of patent claim 1.

[0002] It is well known that noise barriers or sound barriers are used along roads or railway lines to at least partially prevent the propagation of sound. Typically, noise barriers or sound barriers are used for this purpose, which are mounted, for example, on a vehicle restraint system along a road, at underground parking garage entrances, or on building fences.

[0003] Such soundproofing elements usually have absorber bodies, which are often made of wood concrete, comprising fresh wood chips mixed with cement and water.

[0004] The disadvantage of previously known soundproofing elements is that they are complicated to construct and install.

[0005] The object of the invention is therefore to provide a soundproofing element of the type mentioned at the outset, with which the disadvantages mentioned can be avoided and which can be quickly and easily installed at a predefined installation location and arranged on a base body.

[0006] According to the invention, this is achieved by the features of patent claim 1.

[0007] This offers the advantage that the majority of the sound absorbers and the at least one rail can be prefabricated in a factory, allowing the soundproofing element to be installed at a specified location particularly quickly and easily. This allows the soundproofing element, or multiple soundproofing elements, to be transported to the installation site in a particularly space-saving and energy-efficient manner. The combination of the at least one rail and the continuous grooves of the sound absorbers allows the soundproofing element to be installed at the installation site particularly quickly, as the sound absorbers only need to be placed in a row on a floor and connected to one another with the at least one rail.This eliminates the need to attach each sound absorber individually to the base body. Instead, a package of sound absorbers connected to the at least one rail can be attached to the base body. The at least one rail can hold the sound absorbers together on the rail, while also allowing the soundproofing element to be easily attached to the base body, for example, to a wall or ceiling.

[0008] The invention further relates to a modular soundproofing element according to claim 8.

[0009] The invention further relates to an arrangement comprising a plurality of soundproofing elements according to claim 12.

[0010] The invention further relates to a method for fastening a soundproofing element to a base body according to claim 15.

[0011] The invention therefore has the further object of specifying a method of the type mentioned at the outset, with which the disadvantages mentioned can be avoided, with which soundproofing elements can be quickly and easily installed at a predeterminable installation location and arranged on a base body.

[0012] According to the invention, this is achieved by the features of patent claim 15.

[0013] The advantages of the process correspond to the advantages of the above-mentioned soundproofing element.

[0014] The subclaims relate to further advantageous embodiments of the invention.

[0015] The invention will be described in more detail with reference to the accompanying drawings, in which only preferred embodiments are shown by way of example. In the drawings: Fig. 1 a preferred embodiment of a modular sound insulation system in sectional view, Fig. 2 a first detail of the Fig. 1 shown preferred embodiment of the modular sound insulation system, Fig. 3 a second detail of the Fig. 1 shown preferred embodiment of the modular sound insulation system, Fig. 4 a further preferred embodiment of the modular sound insulation system in plan view, Fig. 5 which in Fig. 4 shown preferred embodiment of the modular sound insulation system in rear view, Fig. 6 which in Fig. 4 shown preferred embodiment of the modular sound insulation system in front view, Fig. 7 another preferred embodiment of the modular soundproofing element in rear view, Fig. 8 a preferred embodiment of a rail for a soundproofing element in sectional view, Fig. 9 a preferred embodiment of a fastening device for the modular sound insulation system in sectional view, Fig. 10 a preferred embodiment of a soundproofing element in rear view, Fig. 11 a preferred embodiment of a connecting device in rear view, Fig. 12 the in Fig. 11 shown cut according to AA.

[0016] The Fig. 1 bis 12 show at least parts of preferred embodiments of a soundproofing element 1 comprising a plurality of sound absorbers 2 arranged in a row and at least one rail 3, wherein each sound absorber 2 has at least one continuous groove 5 on a first side 4, wherein the at least one rail 3 is arranged in the grooves 5 of the sound absorbers 2, which at least one rail 3 connects the sound absorbers 2 arranged in a row to one another.

[0017] Furthermore, a modular soundproofing system 9 comprising at least one soundproofing element 1 and at least one fastening device 10 for fastening to a base body 7, in particular to a wall or to a ceiling, is provided, wherein at least one connecting device 6 of the at least one soundproofing element 1 is detachably coupled to the at least one fastening device 10.

[0018] Furthermore, an arrangement comprising a plurality of soundproofing elements 1 is provided, wherein the soundproofing elements 1 are at least indirectly fastened to a wall and form a predeterminable wall arrangement.

[0019] Furthermore, a method for fastening a soundproofing element 1 to a base body 7 is provided, wherein, to form the soundproofing element 1, a plurality of sound absorbers 2 are arranged in a row, wherein each sound absorber 2 has at least one continuous groove 5 on a first side 4, wherein at least one rail 3 is subsequently inserted into the grooves 5 of the sound absorber 2, which at least one rail 3 connects the sound absorbers 2 of the soundproofing element 1 arranged in a row to one another, wherein the soundproofing element 1 is then at least indirectly fastened to the base body 7.

[0020] This results in the advantage that the majority of the sound absorbers 2 and the at least one rail 3 can be prefabricated in a factory, and the assembly of the soundproofing element 1 at a predeterminable installation site can be carried out particularly easily and quickly. This allows the soundproofing element 1, or even several soundproofing elements 1, to be transported to the installation site in a particularly space-saving and energy-efficient manner. The combination of the at least one rail 3 and the continuous grooves 5 of the sound absorbers 2 allows the soundproofing element 1 to be constructed particularly quickly at the installation site, since the sound absorbers 2 only need to be placed in a row on a floor and connected to one another with the at least one rail 3.

[0021] As a result, each sound absorber 2 does not have to be attached individually to the base body 7, but rather a package of sound absorbers 2 connected to the at least one rail 3 can be attached to the base body 7. The at least one rail 3 can thereby, on the one hand, hold the sound absorbers 2 together on the rail 3, and, on the other hand, the soundproofing element 1 can be easily attached to the base body 7, for example, to a wall or a ceiling.

[0022] The soundproofing element 1 is a device for insulating sound, especially noise. The soundproofing element 1 can be used to attenuate noise, i.e., sounds that are unpleasant for humans and / or animals due to their structure, such as their volume.

[0023] The soundproofing element 1 comprises a plurality of sound absorbers 2 arranged in a row.

[0024] A sound absorber 2 is a component intended to mitigate and / or reduce the propagation of sound. The sound absorber 2 can preferably be made of wood concrete. The wood concrete preferably comprises wood chips and a binding agent, in particular cement or a synthetic resin. The sound absorber 2 can also preferably be referred to as a sound absorbing brick.

[0025] Alternatively, the sound absorber 2 can be made of another sound-reducing material, wherein materials of this kind are known to a person skilled in the art and therefore a list of suitable materials is omitted here.

[0026] Preferably, the soundproofing element 1 can comprise at least two, particularly preferably at least four, in particular at least six, sound absorbers 2 arranged in a row. Fig. 10 a preferred embodiment of the soundproofing element 1 with six sound absorbers 2 arranged in a row is shown.

[0027] Preferably, the soundproofing element 1 can comprise a maximum of thirty, particularly preferably a maximum of twenty, in particular a maximum of ten, sound absorbers 2 arranged in a row.

[0028] To construct the soundproofing element 1, the sound absorbers 2 are preferably first lined up on a floor in such a way that the first side 4 of the sound absorbers 2 faces away from the floor. A continuous groove 5 of one sound absorber 2 preferably adjoins a second continuous groove 5 of the further sound absorber 2 in such a way that the grooves 5 of the lined-up sound absorbers 2 form, in particular, a continuous groove on the soundproofing element 1. Subsequently, the at least one rail 3 is preferably inserted into the grooves 5 of the lined-up sound absorbers 2 or into the continuous groove on the soundproofing element 1. Subsequently, at least one connecting device 6 can particularly preferably be attached to the at least one rail 3, which is explained in more detail below. The constructed soundproofing element 1 can then preferably be attached, at least indirectly, to the base body 7.

[0029] Preferably, the sound absorbers 2 arranged next to each other form a row.

[0030] Preferably, the soundproofing element 1 consists only of a row of sound absorbers 2.

[0031] Preferably, at least one sound absorber 2 of the lined-up sound absorbers 2, in particular each sound absorber 2 of the lined-up sound absorbers 2, can be at least 30 cm, particularly preferably at least 40 cm, in particular at least 50 cm, high. It can be provided that the height 15 of the soundproofing element 1 corresponds to the height of the sound absorber 2. Fig. 10 The height 15 of the soundproofing element 1 is shown as an example, whereby each sound absorber 2 has the same height and the height 15 of the soundproofing element 1 corresponds to the height of the individual sound absorbers 2.

[0032] Preferably, at least one sound absorber 2 of the lined-up sound absorbers 2, in particular each sound absorber 2 of the lined-up sound absorbers 2, can be a maximum of 150 cm, particularly preferably a maximum of 110 cm, in particular a maximum of 70 cm, high.

[0033] Preferably, at least one sound absorber 2 of the lined-up sound absorbers 2, in particular each sound absorber 2 of the lined-up sound absorbers 2, can be at least 10 cm, particularly preferably at least 15 cm, in particular at least 20 cm, wide.

[0034] Preferably, at least one sound absorber 2 of the lined-up sound absorbers 2, in particular each sound absorber 2 of the lined-up sound absorbers 2, can be a maximum of 80 cm, particularly preferably a maximum of 60 cm, in particular at least 40 cm, wide.

[0035] It is preferably provided that the groove 5 on the first side 4 of the respective sound absorber 2 extends over the entire width of the respective sound absorber 2.

[0036] Particularly preferably, it can be provided that a predeterminable clearance is present between the at least one rail 3 and the grooves 5 of the sound absorbers 2. This results in the advantage that constraints in the soundproofing element 1 can be reduced or avoided. Furthermore, stress peaks, which lead to localized elastic or plastic deformations on the sound absorbers 2, can be avoided. Furthermore, temperature changes and the associated temperature expansion of the components can be compensated for. Furthermore, vibrations and bending can be compensated for, for example, when the soundproofing element 1 is arranged on a bridge parapet of a railway line when a train travels over the bridge and the bridge parapet is thereby slightly excited to vibrate.

[0037] Particularly preferably, it can be provided that the surface area of ​​the cross section of the at least one rail 3 corresponds to a maximum of 95 percent, particularly preferably a maximum of 85 percent, in particular a maximum of 75 percent, of the surface area of ​​the respective cross section of the grooves 5 of the sound absorber 2. This can also reduce or prevent constraints and stress peaks in the soundproofing element 1. Preferably, the surface area of ​​the cross section of the at least one rail 3 corresponds to a maximum of 95 percent, particularly preferably a maximum of 85 percent, in particular a maximum of 75 percent, of the surface area of ​​the cross section of that groove 5 of the sound absorber 2 in which the at least one rail 3 is arranged.

[0038] Preferably, the grooves 5 of the sound absorbers 2 have a substantially constant cross-section when viewed along the at least one rail 3.

[0039] Preferably, the grooves 5 of the sound absorbers 2 can be undercut.

[0040] Particularly preferably, it can be provided that the respective cross section of the grooves 5 of the sound absorbers 2 is dovetail-shaped. The grooves 5 of the sound absorbers 2 preferably have a dovetail-shaped cross section. Each sound absorber 2 preferably has a dovetail-shaped cross section. This results in the advantage that the at least one rail 3 can be held particularly easily and effectively in the grooves 5 of the lined-up sound absorbers 2. This also results in the synergistic effect when attaching the at least one connecting device 6 to the at least one rail 3 that the rail 3 can be clamped to at least one sound absorber 2, whereby the sound absorbers 2 can be held particularly well on the at least one rail 3.

[0041] It is provided that the at least one continuous groove 5 of the respective sound absorber 2 is arranged on the first side 4.

[0042] Preferably, the first side 4 can also be referred to as the back of the respective sound absorber 2. In Fig. 10 The backs or the first sides 4 of the sound absorbers 2 arranged in a row are shown as examples.

[0043] Preferably, the first side 4 faces the base body 7 when the soundproofing element 1 is fastened to the base body 7.

[0044] Preferably, a second side 16 is arranged opposite and spaced apart from the first side 4 of the respective sound absorber 2. Preferably, the second side 16 of the respective sound absorber 2 can also be referred to as the front side of the respective sound absorber 2.

[0045] Preferably, the second side 16 of the lined-up sound absorbers 2 of the soundproofing element 1 points away from the base body 7 when the soundproofing element 1 is attached to the base body 7. Preferably, the second side 16 faces the sound source whose sound propagation is to be reduced.

[0046] It is provided that the soundproofing element 1 comprises at least one rail 3.

[0047] Preferably, the at least one rail 3 can be made of metal, in particular of steel or aluminum.

[0048] Preferably, the at least one rail 3 can also be referred to as a profile bar.

[0049] Preferably, a cross section of the at least one rail 3 can be substantially trapezoidal.

[0050] Particularly preferably, at least one connecting device 6 is arranged on the at least one rail 3, which connecting device 6 is designed for fastening the soundproofing element 1 to a base body 7, in particular to a wall or to a ceiling. This makes it particularly easy to fasten the sound absorbers 2 to the at least one rail 3, especially if the grooves 5 of the sound absorbers 2 are undercut.

[0051] The soundproofing element 1 preferably comprises at least one connecting device 6.

[0052] Preferably, the at least one rail 3 can have at least one rail opening 17 for fastening the at least one connecting device 6 to the at least one rail 3 by means of a fastening means 18.

[0053] Preferably, the at least one rail 3 can have a plurality of rail openings 17. Preferably, the at least one rail 3 can have at least one rail opening 17, in particular two rail openings 17, for each connecting device 6.

[0054] Preferably, the at least one connecting device 6 is fastened to the at least one rail 3, in particular by means of fastening means 18.

[0055] Preferably, the at least one connecting device 6 can have a plurality of connecting device openings 19. Preferably, the connecting device opening 19 is designed such that the connecting device 6 can be fastened to the at least one rail 3 by means of the fastening means 18. In Fig. 10 1 shows an example of a soundproofing element 1 with four connecting devices 6. These four connecting devices 6 are each attached to the rail 3 in abutment against two adjacently arranged sound absorbers 2, wherein the respective connecting device 6 has two connecting device openings 19. Furthermore, Fig. 11 a preferred embodiment of the connecting device 6 is shown in a rear view, wherein two connecting device openings 19 are visible. In Fig. 12 is the cut according to AA of the Fig. 11 shown preferred embodiment of the connecting device 6, wherein the connecting device opening 19 is also visible.

[0056] Preferably, the at least one connecting device 6 can be made of metal, in particular of steel or aluminum.

[0057] Preferably, the at least one connecting device 6 is formed in one piece. "Integral" means that the connecting device 6 consists of only one part or piece.

[0058] Particularly preferably, it can be provided that the at least one rail 3 is pressed against at least one of the lined-up sound absorbers 2 by means of the at least one connecting device 6. This can be achieved, for example, by a screw connection between the at least one rail 3 and the at least one connecting device 6. This is shown, for example, in the Fig. 1 bis 3 visible, wherein by means of the fastening means 18 the at least one rail 3 is pulled in the direction of the at least one connecting device 6 and thereby the at least one rail 3 is pressed against the sound absorber 2 shown. Fig. 1 bis 3 show a sectional view of a preferred embodiment of the modular soundproofing system 9, wherein the sectional view shows, on the one hand, a horizontal fastening of two soundproofing elements 1 arranged one above the other in a side view, and, on the other hand, a vertical fastening of two soundproofing elements 1 arranged next to one another in a top view. In synergy with the dovetail-shaped groove 5, this makes it particularly easy to clamp the at least one rail 3 against the at least one sound absorber 2.This also allows the sound absorbers 2 to be attached to the at least one rail 3 quickly and easily, wherein, for example, for the plurality of sound absorbers 2 arranged in a row, only two connecting devices 6 are required for attaching the sound absorbers 2 to the rail 3, which two connecting devices 6 are arranged at the two ends of the plurality of sound absorbers 2 arranged in a row.

[0059] Particularly preferably, it can be provided that the at least one connecting device 6 has a connecting surface 8, which connecting surface 8 bears against two sound absorbers 2 of the lined-up sound absorbers 2 of the soundproofing element 1. This allows two sound absorbers 2 to be quickly attached to the at least one rail 3, wherein only one connecting device 6 is required for the two sound absorbers 2. Furthermore, this allows a particularly firm connection of the sound absorbers 2 to the at least one rail 3, whereby displacement of the sound absorbers 2 in the event of a motor vehicle impacting the soundproofing element 1 can be effectively reduced.

[0060] Preferably, the connecting surface 8 lies against the respective first sides 4 of the two sound absorbers 2 of the lined-up sound absorbers 2. This is exemplified in the Fig. 10 visible, where four connecting devices 6 are visible, each of which is connected to two sound absorbers 2.

[0061] Preferably, the connecting surface 8 is a substantially planar, in particular flat, surface of the at least one connecting device 6.

[0062] Preferably, the width 14 of the soundproofing element 1 can be at least 80 cm, particularly preferably at least 100 cm, in particular at least 120 cm.

[0063] Preferably, the width 14 of the soundproofing element 1 can be a maximum of 250 cm, particularly preferably a maximum of 200 cm, in particular a maximum of 150 cm.

[0064] Preferably, the height 15 of the soundproofing element 1 can be at least 20 cm, at least 30 cm, in particular at least 40 cm.

[0065] Preferably, the height 15 of the soundproofing element 1 can be a maximum of 100 cm, particularly preferably a maximum of 80 cm, in particular a maximum of 60 cm.

[0066] Preferably, the at least one connecting device 6 can be used to fasten the soundproofing element 1 to the base body 7. It is provided that the at least one connecting device 6 is designed to fasten the soundproofing element 1 to the base body 7. Preferably, the at least one connecting device 6 can be fastened to the base body 7 by means of base body fastening means, such as screws, bolts or nails. This is described in the Fig. 1 bis 12 but not apparent.

[0067] Preferably, the soundproofing element 1 can also be fastened directly to the base body 7, in particular by means of the base body fastening means. In this case, the use of at least one connecting device 6 for fastening to the base body 7 is omitted. For this purpose, the soundproofing element 1 can be drilled through, for example, after the construction of the soundproofing element 1 and fastened directly to the base body 7, for example a wall or a ceiling, by means of the base body fastening means. This variant of fastening to the base body 7 is described in the Fig. 1 bis 12 not shown.

[0068] The base body 7 can preferably be a wall or a ceiling, in particular comprising concrete. For example, the soundproofing element 1 can be arranged at an underground parking garage entrance or on a concrete barrier wall using the connecting device 6 or another fastening means.

[0069] It is provided that the modular soundproofing system 9 comprises at least one fastening device 10. Preferably, the modular soundproofing system 9 can comprise a plurality of fastening devices 10.

[0070] Particularly preferably, it can be provided that the at least one connecting device 6 is detachably coupled to the at least one fastening device 10 via a tongue and groove connection 13. This allows a particularly simple and quick coupling of the at least one connecting device 6 to the fastening device 10, whereby the arrangement of the soundproofing elements 1 on the base body 7 can be carried out particularly easily, since only the fastening device 10 needs to be fastened to the base body 7 and then the soundproofing element 1 needs to be coupled to the fastening device 10 by means of the tongue and groove connection 13. This allows a damaged soundproofing element 1 to be replaced easily and quickly without the fastening device 10 having to be removed from the base body 7.This allows a soundproofing element 1 to be clamped easily and quickly using two fastening devices 10, allowing the soundproofing element 1 to be arranged flexibly, for example, horizontally or vertically. This is shown, for example, in the . Fig. 4 bis 7 visible, whereby in the Fig. 4 bis 6 a horizontally arranged soundproofing element 1 and in Fig. 7 vertically arranged soundproofing element 1 can be seen.

[0071] Preferably, a cross-section of the fastening device 10 can be substantially L-shaped. In particular, the fastening device 10 can be hook-shaped, wherein the soundproofing element 1 can be hooked into the fastening device 10.

[0072] Preferably, the fastening device 10 can be designed in two parts.

[0073] Preferably, a first part 20 of the fastening device 10 can have a first contact surface and a second part 21 can have a second contact surface formed opposite to the first contact surface, wherein the first contact surface can be connected to the second contact surface in a form-fitting manner. The two contact surfaces, i.e., the first and second contact surfaces, can be designed in particular as sawtooths. Preferably, the second part 21 of the fastening device 10 can be fastened to the first part 20 of the fastening device 10 by means of a fastening device means 22, in particular a screw. This is illustrated by way of example in Fig. 9 can be seen in a preferred embodiment of the fastening device 10.

[0074] Preferably, the fastening device 10 can have the bung 23 of the groove-bung connection 13.

[0075] Preferably, the second part 21 of the fastening device 10 can have a T-shaped cross-section. This makes it particularly easy to form two bungs 23 for the groove-bung connection 13.

[0076] Preferably, the second part 21 of the fastening device 10 can have a recess, in particular a slot, for the fastening device means 22. This makes it particularly easy to vary the distance between the bungs 23 and the first part 20, which facilitates the arrangement and alignment of the soundproofing element 1 on a non-uniformly flat surface of the base body 7. The variation of the distance between the bungs 23 and the first part 20 is shown, for example, in Fig. 9 visible.

[0077] The fastening device 10 is preferably made of metal, in particular of steel or aluminum.

[0078] Preferably, the at least one connecting device 6 can have a connecting device groove 28 for the groove-and-tap connection 13. The connecting device groove 28 is shown, for example, in Fig. 12 shown.

[0079] Particularly preferably, it can be provided that the at least one soundproofing element 1 has two oppositely arranged end regions, wherein in each end region at least one connecting device 6 is fastened to the at least one rail 3. This results in the advantage that the majority of sound absorbers 2 of the soundproofing element 1 can be easily fastened to the at least one rail 3, particularly if the sound absorbers 2 are undercut, using only the connecting devices 6 arranged at the end regions.

[0080] Preferably, the respective soundproofing element 1 can have a first transverse side 24 and a second transverse side 25 arranged opposite and spaced from the first transverse side 24. Preferably, the grooves 5 of the lined-up sound absorbers 2 form a continuous groove 5 on the soundproofing element 1, which extends from the first transverse side 24 to the second transverse side 25 of the soundproofing element 1. The first and second transverse sides 24, 24 of the soundproofing element 1 are shown by way of example in Fig. 10 visible.

[0081] Preferably, the respective end region of the soundproofing element 1 can extend at least 20 percent, particularly preferably at least 25 percent, in particular at least 30 percent, of the width 14 of the soundproofing element 1 along the at least one rail 3, in particular starting from the first transverse side 24 or the second transverse side 25, into the soundproofing element 1.

[0082] Particularly preferably, it can be provided that each sound absorber 2 of the at least one soundproofing element 1 has at least two continuous grooves 5 on the first side 4, wherein a rail 3 is arranged in each of the two grooves 5 and that at least one connecting device 6 is fastened to each rail 3 in the end regions. A soundproofing element 1 preferably designed in this way is shown, for example, in Fig. 10 visible. As a result, the soundproofing element 1 can be designed to be particularly stable and arranged particularly flexibly on the base body 7. For example, the soundproofing element 1 can be arranged horizontally on the base body 7, wherein in this arrangement, several soundproofing elements 1 can be connected to one another at the transverse sides 24, 25, in particular arranged adjacent to one another. This is exemplified in the Fig. 4 bis 6 shown. For example, the soundproofing element 1 can be arranged vertically on the base body 7, wherein in this arrangement, several soundproofing elements 1 can be connected to one another at the respective upper sides 26 or lower sides 27 of the soundproofing elements 1, in particular arranged adjacent to one another. This is exemplified in Fig. 7 visible, as well as the top 26 and the bottom 27 of the soundproofing element 1 in Fig. 10 shown as an example.

[0083] Preferably, the soundproofing element 1 has the underside 27 and the top side 26, wherein the underside 27 of the soundproofing element 1 is arranged opposite and spaced from the top side 26 of the soundproofing element 1.

[0084] Preferably, the at least two continuous grooves 5 are arranged substantially parallel to each other on the first sides 4 of the sound absorbers 2.

[0085] Preferably, in the horizontal arrangement of the soundproofing element 1, the underside 27 or the upper side 26 faces the floor.

[0086] Preferably, in a vertical arrangement of the soundproofing element 1, the first transverse side 24 or the second transverse side 25 of the soundproofing element 1 faces the floor.

[0087] Preferably, the arrangement can comprise the modular soundproofing system 9, wherein fastening devices 10 for the soundproofing elements 1 are attached to the wall, and wherein the at least one connecting device 6 of the respective soundproofing elements 1 is detachably coupled to the fastening devices 10. This allows the predeterminable wall arrangement to be easily configured, since only the fastening devices 10 need to be attached to the wall and the connecting devices 6 of the soundproofing elements 1 need to be coupled to the fastening devices 10.

[0088] Particularly preferably, it can be provided that at least two soundproofing elements 1 of the plurality of soundproofing elements 1 are detachably coupled to the same fastening device 10. This can be achieved, for example, by means of the T-shaped second part 21 of the fastening device 10. As a result, an arrangement of several soundproofing elements 1 next to one another or one above the other can be carried out particularly quickly. This is exemplified in Fig. 2 visible, whereby Fig. 2 a first detail 11 from Fig. 1 Compared to Fig. 2 is in Fig. 3 a second detail 12 from Fig. 1 can be seen, wherein only one soundproofing element 1 is detachably coupled to the fastening device 10 by means of the tongue-and-groove connection 13 and a bung 23 on the fastening device 10 is still free for the detachable coupling of a further soundproofing element 1.

[0089] Preferably, a method for forming an arrangement of the modular soundproofing system 9 comprising the soundproofing elements 1 and the fastening devices 10 for fastening to a base body 7, in particular to a wall or to a ceiling, can be provided, wherein, to form a respective soundproofing element 1, a plurality of sound absorbers 2 are arranged in a row, wherein each sound absorber 2 has at least one continuous groove 5 on a first side 4, wherein at least one rail 3 is subsequently inserted into the grooves 5 of the sound absorbers 2, which at least one rail 3 connects the lined-up sound absorbers 2 of the respective soundproofing element 1 to one another, wherein at least one connecting device 6 is subsequently fastened to the at least one rail 3, wherein fastening devices 10 for the soundproofing elements 1 are fastened to the base body 7, wherein the at least one connecting device 6 of the respective soundproofing element 1 is detachably coupled to one of the fastening devices 10.

[0090] The following are principles for understanding and interpreting the disclosure in question.

[0091] Characteristics are usually introduced with an indefinite article, "ein, eine, eines, einer." Therefore, unless the context indicates otherwise, "ein, eine, eines, einer" is not to be understood as a number.

[0092] A "substantially" in connection with a numerical value includes a tolerance of ± 10% around the stated numerical value, unless the context requires otherwise.

[0093] For ranges of values, the endpoints are included unless the context indicates otherwise.

Claims

1. Soundproofing element (1) comprising a plurality of sound absorbers (2) arranged in a row and at least one rail (3), wherein each sound absorber (2) has at least one continuous groove (5) on a first side (4), wherein the at least one rail (3) is arranged in the grooves (5) of the sound absorbers (2), which at least one rail (3) connects the sound absorbers (2) arranged in a row to one another.

2. Soundproofing element according to claim 1, characterized in that there is a predeterminable clearance between the at least one rail (3) and the grooves (5) of the sound absorbers (2).

3. Soundproofing element according to claim 1 or 2, characterized in that the surface area of the cross section of the at least one rail (3) corresponds to a maximum of 95 percent, particularly preferably a maximum of 85 percent, in particular a maximum of 75 percent, of the surface area of the respective cross section of the grooves (5) of the sound absorber (2).

4. Soundproofing element (1) according to one of claims 1 to 3, characterized in that the respective cross-section of the grooves (5) of the sound absorbers (2) is dovetail-shaped.

5. Soundproofing element (1) according to one of claims 1 to 4, characterized in that at least one connecting device (6) is arranged on the at least one rail (3), which at least one connecting device (6) is designed for fastening the soundproofing element (1) to a base body (7), in particular to a wall or to a ceiling.

6. Soundproofing element (1) according to claim 5, characterized in that the at least one rail (3) is pressed against at least one of the juxtaposed sound absorbers (2) by means of the at least one connecting device (6).

7. Soundproofing element (1) according to claim 5 or 6, characterized in thatthe at least one connecting device (6) has a connecting surface (8), which connecting surface (8) bears against two sound absorbers (2) of the sound absorbers (2) of the soundproofing element (1) arranged next to one another.

8. Modular soundproofing system (9) comprising at least one soundproofing element (1) according to one of claims 5 to 7 and at least one fastening device (10) for fastening to a base body (7), in particular to a wall or to a ceiling, characterized in that the at least one connecting device (6) of the at least one soundproofing element (1) is detachably coupled to the at least one fastening device (10).

9. Modular soundproofing system (9) according to claim 8, characterized in that the at least one connecting device (6) is detachably coupled to the at least one fastening device (10) via a tongue and groove connection (13).

10. Modular soundproofing system (9) according to claim 8 or 9, characterized in thatthe at least one soundproofing element (1) has two oppositely arranged end regions, wherein in each end region at least one connecting device (6) is fastened to the at least one rail (3).

11. Modular soundproofing system (9) according to claim 10, characterized in that each sound absorber (2) of the at least one soundproofing element (1) has at least two continuous grooves (5) on the first side (4), wherein a rail (3) is arranged in each of the two grooves (5) and that at least one connecting device (6) is fastened to each rail (3) in the end regions.

12. Arrangement comprising a plurality of soundproofing elements (1) according to one of claims 1 to 7, characterized in that the soundproofing elements (1) are at least indirectly attached to a wall and form a predeterminable wall arrangement.

13. Arrangement according to claim 12, characterized in thatthe arrangement comprises the modular soundproofing system (9) according to one of claims 8 to 11, that fastening devices (10) for the soundproofing elements (1) are fastened to the wall, and that the at least one connecting device (6) of the respective soundproofing elements (1) is detachably coupled to the fastening devices (10).

14. Arrangement according to claim 13, characterized in that at least two soundproofing elements (1) of the plurality of soundproofing elements (1) are detachably coupled to the same fastening device (10).

15. Method for fastening a soundproofing element to a base body (7), - wherein to form the soundproofing element (1) a plurality of sound absorbers (2) are arranged in a row, wherein each sound absorber (2) has at least one continuous groove (5) on a first side (4), wherein subsequently at least one rail (3) is inserted into the grooves (5) of the sound absorbers (2), which at least one rail (3) connects the sound absorbers (2) of the soundproofing element (1) arranged in a row to one another, - wherein subsequently the soundproofing element (1) is at least indirectly fastened to the base body (7).

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