Sound absorber

Abstract

Sound absorber comprising a one-piece and / or pressed absorber core (10), and a groove (12) extending into at least or exactly one end face of the absorber core (10), wherein the groove (12) is framed by the absorber core (10) on at least or exactly two sides.

Description

[0001] The invention relates to a sound absorber comprising an absorber core and a groove extending in at least or exactly one side of the absorber core.

[0002] Such sound absorbers are generally known. However, the absorber core has traditionally been constructed in multiple parts, meaning several panels are glued or screwed together to form a groove on one side, for example, for a lighting fixture.

[0003] The disadvantage is that the manufacturing process is complex and / or the structure made up of several panels is not very visually appealing.

[0004] It is therefore an object of the invention to create a visually appealing sound absorber.

[0005] The solution to this problem is provided by the subject matter of the independent claim.

[0006] According to the invention, the preferably flat sound absorber has a one-piece and / or pressed absorber core.

[0007] The sound absorber can be designed, for example, as a slat, baffle, and / or ceiling panel. Preferably, the sound absorber can be attached to a ceiling and / or a wall.

[0008] The absorber core preferably comprises or consists of a polyester material. Polyester has excellent sound-absorbing properties.

[0009] The absorber core can be constructed as a single piece. For example, it can be single-layered, meaning it consists of a single layer.

[0010] Alternatively or additionally, the absorber core can be multi-layered, i.e., consist of several layers. The layers are pressed together. During the pressing process, the layers are preferably thermally compacted.

[0011] For example, the absorber core can comprise a multi-layer polyester material. Depending on its structure and thickness, a polyester panel can originally consist of two, three, four, five, or more individual polyester layers. These can preferably be at least partially different. For example, different colors, sound properties, densities, and / or hardnesses are conceivable. These polyester layers can be pressed together during production to form a single polyester panel. During production, for example, several polyester layers are pressed together to form a large polyester panel (raw panel). The absorber cores can then be cut out of the polyester panel.

[0012] The polyester layers are thus pressed together so permanently and firmly during production that the polyester plate or absorber core itself can be considered as a single piece.

[0013] For example, the absorber core is designed as a block.

[0014] The sound absorber has a groove extending in at least or exactly one side, preferably the front side, of the absorber core.

[0015] The groove can be provided on at least or exactly one, two, three, four, five, or six sides. For example, the groove can extend over multiple sides.

[0016] Preferably, the groove can be provided, for example, on at least one, two, three, or four end faces. For example, the groove can extend over several end faces.

[0017] Furthermore, separate grooves can be provided on one and / or different sides.

[0018] The number and / or position of the grooves is basically arbitrary.

[0019] If at least or exactly one short side face and / or at least or exactly one flat face is provided with a groove, lateral lighting can be provided, for example. If a lower, long face is provided with a groove, lighting can be provided from above, for example. If a upper, long face is provided with a groove, indirect lighting can be provided, for example.

[0020] It is also possible to create multiple grooves in the absorber core, for example, at the top and bottom, even if only one groove is ultimately used, e.g., for lighting. This allows the same component to be used for different applications.

[0021] For example, an insert such as a lighting fixture, a decorative or design element, and / or a decorative element can be inserted into the groove. The sound absorber thus fulfills a dual function.

[0022] The groove is framed by the absorber core on at least or exactly two sides.

[0023] The bottom of the groove is not considered a side within the meaning of the invention. The absorber core thus forms the bottom and additionally frames the groove on at least two sides.

[0024] Preferably, the groove is framed on two opposite sides.

[0025] The groove is therefore at least partially surrounded by the one-piece and / or pressed-together absorber core. The one-piece and / or pressed-together design of the absorber core makes the sound absorber visually appealing overall, as the groove is not formed by separate panels. Furthermore, the edges of the groove are precisely and visually appealing. Therefore, they do not need to be covered by a strip, for example.

[0026] Further developments of the invention can also be found in the dependent claims, the description and the accompanying drawings.

[0027] According to one embodiment, the groove is framed by the absorber core on at least or exactly three or four sides.

[0028] Preferably, all sides of the groove can be closed.

[0029] Alternatively, one or both short and / or long end faces of the groove can be open.

[0030] At least on two sides, the groove is not open to the outside. Thus, the groove is at least partially located within the absorber core and / or surrounded by the absorber core.

[0031] According to a further embodiment, the absorber core is cuboid-shaped and / or plate-shaped.

[0032] The sides of the absorber core can be flat, curved and / or curved.

[0033] For example, the flat sides can be curved, e.g., wave-shaped. Alternatively or additionally, at least one end face, for example, the long and / or short, can be non-flat, but rather wave-shaped or jagged, for example.

[0034] According to a further embodiment, an insert is arranged in the groove.

[0035] The groove therefore does not remain empty, but fulfills a function.

[0036] The design options are diverse. In addition to its sound-absorbing function, the sound absorber can also fulfill at least one other function.

[0037] For example, the insert can be designed as a decorative or design element, as an ornamental element, as a lighting device, as a loudspeaker, as a microphone and / or as a monitoring device, e.g. as a camera, or can have corresponding components.

[0038] According to a further embodiment, the insert is smaller than the groove.

[0039] The insert can therefore be surrounded and / or framed by the absorber core on the sides, so that, for example, the edges are visible even when the insert is mounted.

[0040] The sound absorber is thus visually appealing. The edges, for example, do not need to be covered by a strip or panel or concealed at the sides.

[0041] Alternatively, the insert can project laterally over the groove opening. This can be advantageous, for example, if the groove is milled or melted with a hot wire, and the edge is therefore not precisely formed.

[0042] The insert is preferably adapted to the dimensions of the groove, i.e., the groove is filled by the insert. The insert can, for example, be arranged within a single sound absorber. Alternatively, the insert can extend over several, e.g., two or three, sound absorbers. The groove is open on at least one end and ends, for example, at an open end of the groove of an adjacent sound absorber. The grooves of the adjacent sound absorbers thus form a common, continuous groove.

[0043] According to a further embodiment, the insert is designed as a lighting device, preferably a linear light.

[0044] The light color of the lighting device is arbitrary. The light color and / or brightness can preferably be adjusted via a control device.

[0045] The lighting device can preferably comprise one or more LEDs. The LED colors are generally arbitrary.

[0046] The length of the line light can be adjusted to the length of the groove.

[0047] Preferably, a cable recess is provided for cabling the lighting device. This recess can, for example, extend from a bottom of the groove through the absorber core. For example, the cable recess can be fused, drilled, milled, cut, blasted, and / or lasered into the absorber core.

[0048] According to a further embodiment, the insert comprises or consists of a different material, preferably a wood, metal, plastic and / or glass material, than the absorber core.

[0049] The sound absorber can therefore serve as a decorative or design element and / or ornamental element.

[0050] According to a further embodiment, a fastening device for the insert is provided at a bottom of the groove.

[0051] The fastening device can preferably be a hook-and-loop, hook-and-loop, clip, clamp, plug-in, snap-in, magnetic, pin, and / or screw-type device. The fastening can preferably be tool-free. This ensures quick installation and / or replacement, e.g., in the event of a defect.

[0052] Alternatively or additionally, a permanent connection is also conceivable, for example an adhesive connection.

[0053] For example, a combination of magnetic and adhesive connection can be provided.

[0054] Finally, the invention relates to a method for introducing a groove into a polyester material, preferably a sound absorber - preferably according to the invention.

[0055] A bottom of the groove is formed by a cutting device in a single cutting movement.

[0056] For example, the material above the ground can be cut out in a single cutting motion.

[0057] To shape the base, a knife, preferably an oscillating one, can be used.

[0058] For example, the blade can be designed as a rotating cutting disc, e.g. a Dremel®, a U-shaped blade, a circular blade or an L-shaped blade.

[0059] Polyester has excellent sound-absorbing properties. A disadvantage is that it is difficult to process. By forming the groove using a cutting device, precise edges can be achieved. This makes it easy to create a visually appealing groove in a polyester material. This can be used, for example, to produce visually appealing sound absorbers.

[0060] According to one embodiment, three cuts arranged parallel to each other are made before the base is formed.

[0061] The cuts can be made using, for example, a fine cutter, a multi-tool, a blaster, e.g. a sandblaster or water jet, a draw knife, a jigsaw and / or a laser.

[0062] Two of these cuts form the sides of the groove. The third cut, called the guide cut, is located between these two cuts. The guide cut serves as a guide for the cutting device used to form the base.

[0063] A part of the cutting device, e.g., a shaft, is thus inserted into the guide cut. The direction of movement is then determined by the guide cut.

[0064] The guide cut can be straight, but curved and / or jagged lines are also possible.

[0065] Optionally, at least one end face can be formed, for example by a cut that is oriented at right angles to the other cuts.

[0066] Once the groove is formed, an insert can be inserted into it and secured. This can be achieved using one or more magnets, for example.

[0067] All embodiments and components of the device described here are preferably designed to be manufactured according to the method described here. Furthermore, all embodiments of the device described here and all embodiments of the method described here can be combined with one another, preferably independently of the specific embodiment in whose context they are mentioned.

[0068] In general, it should be noted that terms like "a" or "an" do not necessarily mean "exactly one" or "exactly one," although this is also possible. The terms "a" or "an" can therefore be understood as "at least or exactly one" or "at least or exactly one." The use of the singular preferably includes the presence of the components in the plural, and vice versa.

[0069] It is noted that "vorzugsweise" and "vorzugt" can be translated into English as "preferably." A feature introduced by "vorzugsweise" or "vorzugt" is purely optional, can be omitted, and does not constitute a limitation, for example, of the claims.

[0070] The invention is described below by way of example with reference to the drawings. Fig. 1 to 8 perspective views of various embodiments of a sound absorber according to the invention, Fig. 9 a perspective view of an embodiment of a sound absorber according to the invention with two inserts, Fig. 10 to 14 sectional views of various embodiments of a sound absorber according to the invention, Fig. 15 to 18 side views of various embodiments of a sound absorber according to the invention, Fig. 19 to 26 are sectional views for demonstrating different variants of the method according to the invention, and Fig. 27 to 36 sectional views of various embodiments of a sound absorber according to the invention.

[0071] First, it should be noted that the illustrated embodiments are purely exemplary in nature. 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 in any way with features of another embodiment. The number, length, and / or shape of the absorber cores is fundamentally arbitrary. Furthermore, the number, shape, and / or position of the grooves, inserts, and / or decorative elements can vary.

[0072] If a figure contains a reference symbol that is not explained in the immediately corresponding description, reference is made to the corresponding preceding or following explanations in the figure description. Thus, the same reference symbols are used for identical or comparable components in the figures and these are not explained again.

[0073] Fig. 1 shows a sound absorber with a one-piece and / or pressed absorber core 10.

[0074] In a lower, long end face of the absorber core 10 there extends a groove 12 which is framed by the absorber core 10 on all four sides.

[0075] As in Fig. 2, the groove 12 can alternatively or additionally extend on an upper, long end face of the absorber core 10.

[0076] Alternatively or additionally, the groove 12 can be arranged as shown in Fig. 3, extend on one or both short end faces of the absorber core 10.

[0077] How Fig. 4 shows, the groove 12 can alternatively or additionally extend on one or both flat sides of the absorber core 10.

[0078] The flat sides can, as in Fig. 5, for example, be wave-shaped.

[0079] Alternatively or additionally, as in Fig. 6, the long, lower end face of the absorber core 10 may be wave-shaped.

[0080] In principle, individual, several or all flat sides and / or end faces can be straight, curved, jagged and / or angled as desired.

[0081] In Fig. 7, the groove 12 extends along a lower, long end face of the absorber core 10. The groove 12 is framed on three sides by the absorber core 10. One end face of the groove 12, however, is open. For example, another sound absorber can be placed there to create a continuous groove 12.

[0082] As in Fig. 8, the groove 12 can also be framed by the absorber core 10 on only two sides.

[0083] Both ends of the groove 12 are open. This allows additional sound absorbers to be placed on both sides, for example, to create a continuous groove 12.

[0084] In Fig. 9, two grooves 12 are provided on a long end face of the absorber core 10. Lighting devices are arranged in the grooves 12 as inserts 14.

[0085] According to the sectional view in Fig. 10 the groove 12 can remain empty.

[0086] Alternatively, as in Fig. 11, an insert 14, e.g., a lighting device, a decorative or design element, and / or a decorative element, can be arranged therein. This insert can be flush with the absorber core 10.

[0087] Alternatively, insert 14 can also be used as shown in the Fig. 12 to 14 shown.

[0088] The insert 14 can, as in the Fig. 13 and Fig. 14, may be provided with one or more decorative elements 16. The decorative elements 16 may be designed as lighting devices, e.g., LEDs, and / or as elements made of a different material than the remaining insert 14.

[0089] In Fig. 15 shows a dashed cable recess 18 which extends from a bottom of the groove 12 through the absorber core 10.

[0090] As in Fig. As shown in Figure 16, the sound absorber can be attached to a wall 22 via a wall fastening device 20.

[0091] Alternatively, the sound absorber can also be used as in Fig. 17 and Fig. 18, e.g. via ceiling hangers 24 at any height on a ceiling 26.

[0092] Fig. 19 to 22 show a method for introducing a groove 12 into an absorber core 10 or generally into a polyester material.

[0093] First, a first cut 28 is made, as in Fig. 19 is shown.

[0094] Subsequently or simultaneously, a second, parallel cut 30 is made, as in Fig. 20 is shown.

[0095] Subsequently or simultaneously, a third, parallel guide cut 32 is made between them, as shown in Fig. 21 is shown.

[0096] The bottom of the groove 12 is formed in a single cutting movement by means of a cutting device 34, e.g. designed as a Dremel®.

[0097] The cutting device 34 is guided in the guide cut 32.

[0098] Alternatively, the groove 12, as in Fig. 23, by means of a U-shaped knife 36 as a cutting device.

[0099] As in Fig. 24, an L-shaped knife 38 may alternatively be used as a cutting device.

[0100] Alternatively, as in Fig. 25, a heated, U-shaped wire 40 can be used as a cutting device to melt out the groove 12.

[0101] Furthermore, as in Fig. 26, a milling head 42 can be used to mill out the groove 12.

[0102] As in Fig. 27, the insert 14 can be fastened in the groove 12 via one or more magnets 44 as a fastening device.

[0103] As in Fig. 28, the insert 14 can be glued to the absorber core 10, for example laterally, in addition to the magnet 44, with an adhesive 46 as a fastening device.

[0104] The magnet 44 can, as in Fig. 29 is also omitted here.

[0105] Alternatively or in addition to lateral bonding, bonding at the bottom of the groove 12 is possible, as shown in Fig. 30 is shown.

[0106] As in Fig. 31, the fastening can be effected by means of at least one Velcro strip 48 as a fastening device.

[0107] In Fig. 32 shows that a magnetic insert 14 can be magnetically attached to one or more screws 50 as a fastening device.

[0108] Alternatively, the insert 14 can be directly screwed to the absorber core 10 using one or more screws 50 as a fastening device.

[0109] In Fig. Finally, Figure 34 shows an embodiment in which the insert 14 has a border frame 52. The border frame 52 can, for example, conceal unsightly edges of the groove 12.

[0110] Fig. 35 shows an embodiment in which the insert 14 is set back.

[0111] As in Fig. 36, the insert 14 can also protrude beyond the groove 12.

[0112] The insert 14 does not have to be flush with the absorber core 10. The visual design possibilities are essentially unlimited.

[0113] The method of fastening the insert 14 or the frame 52 is fundamentally arbitrary. Various fastening devices 44, 46, 48, and 50 can also be combined. List of reference symbols 10 absorber core 12 grooves 14 Lighting device, insert 16 decorative elements 18 Cable recess 20 wall mounting device 22 Wall 24 ceiling hangers 26 Ceiling 28 first cut 30 second cut 32 guide cut 34 Dremel®, cutting device 36 U-shaped knife, cutting device 38 L-shaped knife, cutting device 40 U-shaped wire, cutting device 42 milling head 44 Magnet, fastening device 46 Adhesives, fastening devices 48 Velcro fastener 50 Screw, fastening device 52 border frames

Claims

[1] Sound absorber, comprising a one-piece and / or pressed absorber core (10), and a groove (12) extending in at least or exactly one end face of the absorber core (10), wherein the groove (12) is framed on at least or exactly two sides by the absorber core (10). [2] Sound absorber according to claim 1, characterized by that the groove (12) is framed on at least or exactly three or four sides by the absorber core (10). [3] Sound absorber according to claim 1 or 2, characterized by that the absorber core (10) is cuboid-shaped and / or plate-shaped. [4] Sound absorber according to one of the preceding claims, characterized by that an insert (14) is arranged in the groove (12). [5] Sound absorber according to claim 4, characterized by that the insert (14) is smaller than the groove (12). [6] Sound absorber according to claim 4 or 5, characterized bythat the insert is designed as a lighting device (14), preferably a line light. [7] Sound absorber according to one of claims 4 to 6, characterized by that the insert (14) comprises or consists of a different material, preferably a wood, metal, plastic and / or glass material, than the absorber core (10). [8] Sound absorber according to one of claims 4 to 7, characterized by that a fastening device (44, 46, 48, 50) for the insert (14) is provided on a bottom of the groove (12).

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