Sound absorber

Abstract

The invention relates to a sound absorber comprising a frame with at least two opposing, elongated frame elements, at least one functional device arranged inside the frame, a cover which, in the assembled state, is stretched by the frame at least on one side facing a room, wherein the cover comprises or consists of a woven, knitted and / or crocheted fabric, and at least one strut which extends between the frame elements, wherein the frame elements each have at least two retaining grooves for selectively holding the strut, wherein the retaining grooves are arranged at different heights.

Description

[0001] The invention relates to a sound absorber comprising a frame with at least two opposing, elongated frame elements, and at least one functional device arranged inside the frame.

[0002] When assembled, a cover is stretched across the frame at least on one side facing a room, and the cover comprises or consists of a fabric.

[0003] DE 10 2006 041 834 A1 discloses a corresponding sound-absorbing element. The content of DE 10 2006 041 834 A1, for example with regard to its feasibility and / or possible embodiments, is fully incorporated into this application.

[0004] The disadvantage is that the sound-absorbing element is designed as a functional device for exactly one size of absorber mat. It is not suitable for other sizes and / or applications.

[0005] Therefore, one of the aims of the invention is to create a sound absorber that can be used in a variety of ways.

[0006] This problem is solved by the object with the features of an independent claim.

[0007] According to the invention, a sound absorber is provided. This is preferably designed for wall and / or ceiling mounting and / or can be used for this purpose.

[0008] For example, the sound absorber may have a mounting device, e.g. a mounting bracket, for attachment to a ceiling suspension.

[0009] The mounting device can be designed, for example, as a wide leg for the integration of various suspension and / or mounting options for the sound absorber on the wall and / or ceiling.

[0010] Alternatively or additionally, cross profiles for cable suspensions are conceivable. A triangular plate for a magnet and / or a cable attachment can also be provided, for example, in the 90° corner of the frame.

[0011] The sound absorber has a frame with at least two opposing, elongated frame elements.

[0012] The two frame elements are preferably oriented parallel to each other.

[0013] Preferably, two further frame elements are provided, which extend at right angles to the other frame elements. Overall, a rectangular, e.g., square, frame can therefore preferably be provided.

[0014] For example, the frame can have a length and / or width between 0.25 m and 6 m, e.g. between 0.5 m and 2 m.

[0015] The frame elements can be, for example, between 2 cm and 20 cm wide, preferably 4.5 cm. The height can be, for example, between 2 cm and 20 cm, preferably 4.5 cm or 6 cm.

[0016] The frame elements can, for example, be made of or consist of a metal, wood and / or plastic material.

[0017] The sound absorber has at least one functional device that is located inside the frame.

[0018] Preferably, the functional device can extend over the entire inner surface of the frame. The entire inner length and width of the frame can thus be provided with the functional device. For example, the height of the functional device is less than the height of the frame. Alternatively, the height of the functional device can be equal to the height of the frame. In this case, the entire interior of the frame can be filled with the functional device.

[0019] The sound absorber has a cover which, when mounted, is stretched by the frame at least on one side facing a room.

[0020] Preferably, the frame is stabilized by the cover. This allows the cover to tension the frame elements against each other.

[0021] The cover has or consists of a woven, knitted and / or crocheted fabric.

[0022] The fabric could be, for example, a textile material, fiberglass and / or glass silk.

[0023] The knitted material could be, for example, wool.

[0024] The sound absorber has at least one or exactly one strut that extends between the frame elements.

[0025] The strut can, for example, prevent the cover from squeezing the frame elements together.

[0026] Preferably, the strut is oriented perpendicular to the longitudinal extent of the two frame elements.

[0027] Preferably, several struts, e.g., at least or exactly two, three, four, five or more, can extend between the two frame elements. Preferably, the struts are oriented parallel to each other and / or arranged in the same plane.

[0028] The height of the strut can be, for example, between 1 cm and 5 cm, e.g. 1.5 cm.

[0029] For example, the strut can have a U-shaped cross-section. Alternatively, a round or rectangular, preferably square, cross-section is conceivable.

[0030] The frame elements each have at least two retaining grooves for optionally holding the strut.

[0031] The strut is preferably detachable from the retaining groove, i.e., not permanently connected, e.g. neither screwed nor glued, but is held in the retaining groove due to the tension of the cover.

[0032] The height of the retaining groove can be, for example, between 1 cm and 5 cm, e.g. 1.5 cm.

[0033] The retaining grooves preferably extend along the entire length of the frame elements.

[0034] For example, several struts can be placed next to each other in the same holding groove.

[0035] The retaining grooves are arranged at different heights or levels.

[0036] Due to the different height positions, the strut can be positioned variably according to the respective circumstances, for example depending on the design of the functional device.

[0037] The strut can be inserted into a higher or lower holding groove as needed.

[0038] In this way, the same frame can be used even if, for example, the functional devices differ.

[0039] The sound absorber is therefore suitable for various sizes and / or designs of the functional device and is versatile in its applications.

[0040] Further developments of the invention can also be found in the dependent claims, the description and the accompanying drawings.

[0041] According to one embodiment, the functional device has or consists of a sound-absorbing material, an insulating insert, a cooling device and / or a heating device.

[0042] The sound-absorbing material or insulation insert can, for example, consist of or be made of a foam material, e.g. polyurethane, a polyester, a fiberglass and / or a mineral wool material.

[0043] For example, the sound-absorbing material or the insulating insert can be designed as a mat.

[0044] The sound-absorbing material or the insulating insert can, for example, be designed as a broadband absorber, preferably for high and / or low tones.

[0045] The insulating layer can preferably be denser than the sound-absorbing material. For example, the insulating layer can be pinnable, meaning the sound absorber can be used as a pinboard. In this way, the sound absorber can fulfill an additional function.

[0046] Alternatively or additionally, the functional device can include a cooling and / or heating element. The room in which the sound absorber is installed can be cooled or heated via the cooling or heating technology. In this way, the sound absorber can fulfill an additional function.

[0047] According to another embodiment, the frame elements each have at least one web which defines a retaining groove.

[0048] Two webs can, for example, form a holding groove.

[0049] Furthermore, a single bridge can define both a higher and a lower retaining groove. In this case, the bridge fulfills a dual function.

[0050] According to another embodiment, at least or exactly one cross brace oriented perpendicular to the strut is provided.

[0051] The crossbar can, for example, prevent the cover from compressing the frame elements in a transverse direction.

[0052] Preferably, the cross brace is oriented parallel to the longitudinal extent of the two frame elements.

[0053] Preferably, several cross braces, e.g., at least or exactly two, three, four, five or more, can extend between two frame elements. Preferably, the cross braces are oriented parallel to each other and / or arranged in the same plane.

[0054] The cross brace can preferably be arranged in a different plane or level than the strut. Preferably, the cross brace is fastened in different retaining grooves than the strut.

[0055] The cross brace and the strut can therefore be arranged one above the other and do not interfere with each other.

[0056] The crossbar is preferably detachably connected to the retaining groove, i.e., not permanently, e.g. neither screwed nor glued, but is held in the retaining groove due to the tension of the cover.

[0057] The height of the crossbar can be, for example, between 1 cm and 5 cm, e.g. 1.5 cm.

[0058] For example, the cross member can have a U-shaped cross-section. Alternatively, a round or rectangular, preferably square, cross-section is conceivable.

[0059] According to another embodiment, a functional plate is provided which is arranged behind the cover.

[0060] The functional plate is preferably located inside the frame.

[0061] Preferably, the functional plate can increase the strength and / or stability.

[0062] For example, the functional plate can be a metal plate, e.g., a (stainless) steel, aluminum, and / or sheet metal plate. The functional plate is preferably magnetic.

[0063] The sound absorber can therefore be used, for example, to attach magnets. A note, for instance, can be attached to the sound absorber with a magnet.

[0064] The functional panel can, for example, be perforated. Its functionality as a sound absorber is therefore not impaired.

[0065] Alternatively or additionally, the functional panel can have a sheet material, preferably a thicker one. This can, for example, improve the acoustic performance.

[0066] Alternatively or additionally, the functional plate can serve as a support plate for a cooling and / or heating device.

[0067] According to another embodiment, the frame elements each have at least one groove for the functional plate.

[0068] The groove is preferably located in an area near the cover. The functional plate can therefore be attached, for example, directly behind the cover.

[0069] A sheet material can, for example, have an overhang that can be inserted into the groove.

[0070] According to another embodiment, the frame elements each have at least one cover groove for clamping the cover.

[0071] Preferably, the cover groove is provided on a rear side of the sound absorber.

[0072] The cover can be clamped into the cover groove without tools, for example.

[0073] According to another embodiment, at least one clamping strip is provided for clamping the cover in the cover groove.

[0074] The tensioned cover can be guided over the cover groove and clamped in place using a clamping strip. This allows for quick, easy, and / or tool-free installation.

[0075] According to another embodiment, at least two frame elements arranged one above the other are provided on each side of the frame.

[0076] The frame elements can preferably be of identical construction. This allows the use of standard components while still increasing variability.

[0077] Alternatively, the frame elements can differ from each other. For example, they can be of different heights, e.g., 4.5 cm and 6 cm respectively.

[0078] Doubling the frame elements also increases the possibilities for positioning the strut or cross brace, e.g., by doubling them.

[0079] The strut or cross strut can be positioned variably according to the respective circumstances, for example depending on the design of the functional device.

[0080] According to another embodiment, the superimposed frame elements are screwed together.

[0081] Screwing the two frame elements together allows for a quick, easy, cost-effective and / or secure fastening.

[0082] All aspects, embodiments, and features of the invention described herein can be combined with one another, preferably also independently of the specific embodiment in which they are mentioned. Preferably, all subject matter of the dependent claims can be combined with each other and with the subject matter of the independent claim.

[0083] It is generally noted that terms like "ein" (a) and "eine" (a / an) do not necessarily mean "exactly one" or "exactly one," although this is also possible. The terms "ein" and "eine" can therefore be understood as "at least one" or "exactly one." The use of the singular preferably includes the possibility of the components being plural, and vice versa.

[0084] It is noted that "vorzugsweise" and "bevorzugt" can be translated as "preferably" in English. A feature introduced by "vorzugsweise" or "bevorzugt" is purely optional, can be omitted, and does not constitute a limitation, for example, of claims.

[0085] The invention is described below by way of example with reference to the drawings. The drawings show: Fig. 1 a sectional view of an embodiment of a sound absorber according to the invention, Fig. 2 a sectional view of a further embodiment of a sound absorber according to the invention, Fig. 3 a sectional view of a further embodiment of a sound absorber according to the invention, Fig. 4 a sectional view of a further embodiment of a sound absorber according to the invention, Fig. 5 a semi-transparent perspective view of the sound absorber according to Fig. 4Fig. 6 a sectional view of a further embodiment of a sound absorber according to the invention, Fig. 7 a sectional view of a further embodiment of a sound absorber according to the invention, Fig. 8 a sectional view of a further embodiment of a sound absorber according to the invention, Fig. 9 a sectional view of a further embodiment of a sound absorber according to the invention, Fig. 10 a sectional view of a further embodiment of a sound absorber according to the invention, Fig. 11 a semi-transparent perspective view of the sound absorber according to Fig. 10 Fig. 12 a perspective view of an embodiment of a frame of a sound absorber according to the invention, Fig. 13 a sectional view of the frame according to Fig. 12Fig. 14 shows a sectional view of a further embodiment of a frame of a sound absorber according to the invention, Fig. 15 shows a sectional view of a further embodiment of a frame of a sound absorber according to the invention, and Fig. 16 shows a sectional view of a further embodiment of a frame of a sound absorber according to the invention.

[0086] It should first be noted that the embodiments shown are purely exemplary. Individual features can be implemented not only in the combination shown, but also individually or in other technically feasible combinations. For example, the features of one embodiment can be combined with features of another embodiment in any way. The length, width, height, and / or shape of the frame are essentially arbitrary, as is the number of frame elements. The length, width, height, shape, and / or number of struts and / or cross braces are also arbitrary. Furthermore, the functional device can vary. The number of functional devices and / or their positions are also essentially arbitrary.

[0087] If a figure contains a reference numeral that is not explained in the immediately associated descriptive text, reference is made to the corresponding preceding or subsequent explanations in the figure description. Thus, the same reference numerals are used for identical or comparable components in the figures and are not explained again.

[0088] Fig. 1 Figure 1 shows a sound absorber with a frame 10. In the section shown, only an elongated frame element 12 is depicted. Parallel to this, another frame element is provided on the opposite side.

[0089] Inside the frame 10, at least one functional device 15 designed as sound-absorbing material 14 is arranged.

[0090] A cover 16, e.g. a fabric, is stretched on a side facing a room by the frame 10.

[0091] The frame element 12 has a cover groove 18 to which the cover 16 can be clamped. A clamping strip (not shown) may be provided for this purpose.

[0092] A U-shaped strut 20 extends between the frame elements 12. To optionally hold the strut 20, the frame element 12 has at least two retaining grooves 22.

[0093] Depending on requirements, the strut 20 can be placed arbitrarily in either of the two retaining grooves 22.

[0094] The frame element 12 has several webs 24 which define the retaining grooves 22.

[0095] Optionally, the frame element 12 can have a groove 26 for an optional functional plate 28, e.g., a metal plate. For example, magnets can be attached to the functional plate 18 to, for example, attach notes.

[0096] On the side of the sound absorber opposite the functional plate 28, a mounting bracket 30 is provided for fastening to a wall and / or a ceiling, e.g. a suspended ceiling.

[0097] An internal stiffening web 31 can be optionally provided to increase the compressive stiffness of the profile and thus reduce deflection. In this way, the number of struts 20 can be reduced.

[0098] As in Fig. 2 As can be seen, the functional device 15 can, for example, be designed as an insulating insert 32.

[0099] The insulating insert 32 can preferably be denser than the sound-absorbing material 14. For example, the insulating insert 32 can be used as a pinboard. A functional panel 18 is preferably not provided in this case.

[0100] As in Fig. 3As shown, the functional device 15 can, for example, be designed as a heating and / or cooling device 34.

[0101] The heating and / or cooling device 34 can, for example, be mounted on the functional plate 18.

[0102] As in Fig. 4 As shown, several functional devices 15 can be provided, for example a heating and / or cooling device 34 and a sound-absorbing material 14. These functional devices 15 can be inserted and / or mounted between the struts 20.

[0103] Alternatively or additionally, the functional devices 15, e.g. the sound-absorbing material 14 and / or the heating / cooling device 34, can simply be inserted in strips, e.g. 10 to 20 cm along the outside of the frame 10.

[0104] This achieves a balanced ratio between heating / cooling performance and acoustic performance.

[0105] Without insulation, the heating / cooling performance would be better, but the acoustics would be worse. With full-surface insulation, on the other hand, the acoustic performance would be better, but the heating / cooling performance would be worse.

[0106] The heating and / or cooling device 34 is also in Fig. 5 depicted.

[0107] For example, three struts 20 can be provided.

[0108] In Fig. 6 An embodiment with three retaining grooves 22 is shown. This ensures even greater variability.

[0109] For example, a sound-absorbing material 14 can be provided as a functional device 15.

[0110] As in Fig. 7 As shown, in addition to the sound-absorbing material 14, a damping insert 32 can be provided. The strut 20 can be offset further upwards or backwards.

[0111] Fig. 8 Figure 34 shows an embodiment with a heating and / or cooling device.

[0112] As in Fig. 9 As can be seen, in addition to the heating and / or cooling device 34, a sound-absorbing material 14 may be provided. These functional devices 15 can, for example, also be inserted and / or mounted between the struts 20 (see also the above explanations in connection with Fig. 4 ).

[0113] In principle, any functional devices can be combined with each other.

[0114] As in the Figs. 10 and 11 As shown, in addition to struts 20, for example two cross struts 36 can be provided. The struts 20 and cross struts 36 can be arranged in different retaining grooves 22, i.e., at different heights or levels. The struts 20 and cross struts 36 therefore do not interfere with each other.

[0115] In Fig. 12 It has been shown that the frame elements 12 can also be arranged on top of each other. The sound absorber can therefore be used in even more versatile ways.

[0116] As in Fig. 13 As can be seen, the frame elements 12 can be screwed together using a screw 38. The frame elements 12 may preferably have drill holes for this purpose.

[0117] The screwing can take place, for example, in the cover groove 18 and / or a corner stiffening groove 40, which can be used alternatively or additionally for a corner stiffening angle.

[0118] In Figs. 13 and 14 It has been shown that two different frame elements 12 can be combined arbitrarily.

[0119] Alternatively, as in the Figs. 15 and 16 It can be seen that identical frame elements 12 are also connected to each other. Reference symbol list

[0120] 10 Frame 12 Frame element 14 Sound-absorbing material 16 Cover 15 Functional device 18 Cover groove 20 Strut 22 Retaining groove 24 Web 26 Groove 28 Functional plate 30 Mounting web 31 Stiffening web 32 Insulation insert 34 Heating and / or cooling device 36 Cross brace 38 Screw 40 Corner stiffening groove

Claims

1. Sound absorber comprising a frame (10) with at least two opposing, elongated frame elements (12), at least one functional device (15) arranged inside the frame (10), a cover (16) which, in the assembled state, is stretched by the frame (10) at least on one side facing a room, wherein the cover (16) comprises or consists of a woven, knitted and / or crocheted fabric, at least one strut (20) which extends between the frame elements (12), wherein the frame elements (12) each have at least two retaining grooves (22) for selectively holding the strut (20), wherein the retaining grooves (22) are arranged at different heights.

2. Sound absorber according to claim 1, characterized by that the functional device (15) comprises or consists of a sound-absorbing material (14), a sound-absorbing insert (32), a cooling device and / or a heating device (34).

3. Sound absorber according to claim 1 or 2, characterized by that the frame elements (12) each have at least one web (24) which defines a retaining groove (22).

4. Sound absorber according to one of the preceding claims, characterized by that at least one cross brace (36) oriented perpendicular to the strut (20) is provided.

5. Sound absorber according to one of the preceding claims, characterized by that a functional plate (28) is provided which is arranged behind the cover (16).

6. Sound absorber according to claim 5, characterized by that the frame elements (12) each at least one Nut (26) for the functional plate (28).

7. Sound absorber according to one of the preceding claims, characterized by that The frame elements (12) each have at least one cover groove (18) for clamping the cover (16).

8. Sound absorber according to claim 7, characterized by that at least one clamping strip is provided for clamping the cover (16) in the cover groove (18).

9. Sound absorber according to one of the preceding claims, characterized by that at least two frame elements (12) arranged one above the other are provided on each side of the frame (10).

10. Sound absorber according to claim 9, characterized by this. that the superimposed frame elements (12) are screwed together.

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