DE202015102968U1 - Noise absorbers - Google Patents

Abstract

A sound absorber (100) made of a sound-absorbing material in the form of at least one planar or spatial element (110) arranged individually or in a group of several elements on at least one standing or hanging device (120), wherein the sound absorbing Material is arranged on the at least one device (120) in the form of a continuous, counter-rotating bay-like loops (115, 115 ') forming web whose loop sheets are in a plane perpendicular to the web (105).

Description

Background of the invention

Field of the invention

The present invention relates to room climate-promoting noise absorbers. In particular, the present invention relates to surface elements which, due to their material and their arrangement in a room, can absorb noises that occur in the room, which can further bring the climate in the room - even in the absence of an air conditioner - to a health value and the Moreover, due to a good appearance for the architectural design of a room are suitable.

 In the living environment of every human being, the noise level has been increasing for years, not only outdoors (traffic noise, machine noise, mass events, etc.), but also indoors, for example in private homes or working environments (noise from radio or television or telephone ringing). ubiquitous (mobile) phone use, aggressively perceived sounds of Internet games, movies, loud entertainment, etc.). The effective insulation of living or working rooms against penetrating noises or against noise generated or generated in the room itself is therefore of utmost importance for everyone's well-being.

 Conventional measures for sound insulation are only in the fewest cases sufficient: Thus (as in former times) textile window hangings / curtains, carpets and (usually also textile) upholstery elements of furniture alone can not bring about a satisfactory insulation against loud noises , Increasingly - especially in interior design - flat wall elements with sound-absorbing equipment, including soundproof equipped partitions, carpets or carpets and plants used for noise insulation.

 Also, new materials were discovered (or "rediscovered" known materials), which include felts, among others. Felt in many applications is now widely used to create a sophisticated room acoustics, whether in floor coverings or floor coverings, on furniture (eg tables) or on walls or even on hangings or coatings for lamps. For example, from wool, ie a natural, renewable raw material, by means of moisture, heat and friction, felted and consolidated, homogenous textile fabrics ("wool felts") can be produced, which are characterized by their good use properties. Are also known (mostly synthetic fibers such as polyesters (PES), polyamides (PA) or polypropylene (PP) produced, ie synthetic) needle felt, more often in the industrial sector with high demands on temperature and aging resistance, rotting and abrasion resistance and resistance to Chemicals find use.

The earlier document DE 20 2011 103 090 U1 Applicant describes noise absorbers made of a sound absorbing material in the form of one or more sheet or spatial element (s) arranged individually or in groups on at least one suspension suspended in a room.

 Disadvantage of this sound absorber in the form of one or more planar or spatial elements of a sound absorbing material such as felt was or is their low sound absorption capacity and their low mechanical stiffness in those cases in which einschichtige material (for example, felt) Sheets of conventional (ie, less) thickness were used.

 This disadvantage is alleviated by the present invention in that, surprisingly, it has been found that when the material forming the spatial elements is not planar (ie, spanned in one plane), but arranged in a meandering or undulating manner, a web of material is not only regular includes air-filled spaces, but also forms elements with a greater thickness of the sound-proofing material. This not only has a higher sound absorption capacity than the simple material layer, but also has a higher mechanical stiffness than the previous elements of a layer of a sound absorbing material.

 The invention therefore relates to a sound absorber made of a sound-absorbing material in the form of at least one planar or spatial element, which is arranged individually or in a group of several elements on at least one standing or hanging device, wherein the sound-absorbing material on the at least a device in the form of a continuous, counter-running book-like loops forming web is arranged, the loop sheets are in a plane perpendicular to the web.

 Advantageous, but non-limiting embodiments of the noise absorber of the present invention are claimed in dependent claims 2 to 4.

The invention further relates to noise absorbers with the details described below Characteristic features for sound insulation in rooms, preferably in high rooms, or for air conditioning of rooms, in particular for controlling the humidity in rooms, preferably in high rooms, and / or for cleaning the air in rooms, preferably in high rooms.

 The invention will be explained in more detail below with reference to attached figures, which show preferred embodiments of the invention, which, however, are not intended to limit the invention, but are merely provided for a better and more illustrative presentation of the invention and are intended for better understanding of the invention.

 In the figures show:

1 a partial perspective view of a single sound absorber element;

2 a perspective view of a noise absorber according to the invention with particular emphasis a noise absorber element; and

3 a cross-sectional view or top view of the noise absorber according to the invention according to 2 according to the line III-III in 2 ,

The invention will now be explained in more detail with reference to the figures and in consideration of preferred embodiments which are not intended to limit the invention. It will be on first 2 Referenced.

 The term "sound absorber" as used in the present specification and claims is to be understood as the term for elements of a sound absorbing material. These should be suitable in terms of shape and material to "sound absorption" in a room such as (but not limited to) a living space or a working space of people to insulate. In particular, the aspect is in the foreground that for large or high rooms, the sound insulation is technically demanding and in particular is often realized less attractive. One of the objects of the present invention is to achieve efficient soundproofing with attractive area or space elements which are placed precisely where the size, and in particular the height, of the space is of importance.

 Spaces within the meaning of the present specification and claims are exemplary (but not limiting) of spaces in which people reside and / or work, and the work without distinction is a mental (eg, managing or controlling) Function or a creative (eg a production or advertising or packaging) function. Soundproofing in meeting rooms is just as important as in reception halls or production halls.

Special advantages unfold the sound absorbers 100 The present invention in rooms in which the sound insulation because of the room size (area) or room height makes special demands: As sound propagates in space, as long as he does not encounter (sound-absorbing) obstacles, is in large and high spaces strongly the requirement of an efficient Sound insulation to be considered. For example, high living areas that sometimes cover two (or even more) floors are just as difficult to provide with efficient soundproofing as work halls with a large footprint and / or high height.

The present invention remedies this problem. According to the invention, the sound absorbers 100 from a sound absorbing material. Such materials are known to the skilled person from his experience and can be selected from a variety of proven materials and adapted to the particular requirements of the case. Without limitation, materials based on wood, based on textile materials, paper-based or cardboard-based, on the basis of natural stone or synthetic construction materials (eg aerated concrete) or even materials which are composites with sound-absorbing materials can be used according to the invention as sound-absorbing materials are, for example, metal with a sound-absorbing material or glass with a sound-absorbing material.

In a preferred embodiment of the sound absorber according to the invention 100 are used as sound-absorbing materials textile materials. Also in these, the expert in this technical field has a wide choice and can choose based on his experience according to the requirements of the case of a variety of textile materials of natural or synthetic origin (or of natural origin, but adapted to the requirements with specially prepared synthesis materials), or the person skilled in the art can test these materials according to the requirements in a few orienting tests and then use the test results.

Particularly preferred embodiments of the invention relate to noise absorbers 100 made of a felt material. Such felt materials are in terms of sound insulation Properties are particularly efficient and can already be prepared due to the production so that an efficient sound insulation is achieved. Of the eligible felt materials are for preferred embodiments of the invention sound absorbers 100 Needle felts (predominantly of the above-mentioned synthetic materials, such as man-made fibers, eg of polyesters (PES), polyamides (PA) or polypropylene (PP)) and wool felts are particularly preferred. The latter consist of wool of natural origin (for example, wool obtained from sheep's wool) and are converted into felted and consolidated homogeneous textile fabrics ("wool felts") in accordance with known processes of felt production, ie by moisture, heat and friction Beneficial properties, in particular a good sound insulation and good influence on climatic conditions (such as room humidity) distinguished. Such wool felts are therefore particularly preferred according to the invention.

In particularly preferred embodiments of the sound absorber according to the invention 100 Wool felt with a thickness in the range of 1 to 10 mm is used. Still more preferably, the thicknesses of wool felt used are in the range of 2 to 5 mm.

It will be up now 2 Referenced. The sound absorber according to the invention 100 may be in any form known to those skilled in the art for the purposes intended and may be selected in accordance with circumstances without limitation from known forms. According to the invention, for example, surface sound absorber elements 110 or spatial sound absorber elements 110 in question, without limiting the invention to these. According to the invention are flat noise absorber elements 110 particularly preferred. Under "flat" sound absorber elements 110 In the present description and in the claims for protection, such sound absorbing elements are used 110 understood that in two dimensions (see 2 : x and y direction) have an extent of comparable size, while the extent in the third dimension (see 2 : z-direction) is significantly smaller than the dimensions in the directions x and y.

According to the invention, a noise absorber element can be used according to the requirements 110 can be used, or there may be several sound absorber elements 110 be used. Significant circumstances may be the size and / or height of the room, the intensity of the sound to be isolated, the volume of noise to be isolated, the presence, the absence of other sound-proofing equipment, the need for and extent of climatic improvement, and other conditions. The size of the sound absorber used in the invention is arbitrary and may be dependent on a variety of parameters, which may include the room size and height, the volume and type of noise to be insulated and the extent of a change in the room climate. The noise absorber size can therefore be experimentally determined by the person skilled in the art, if appropriate, and selected according to the experiments, or also according to previous empirical values. With this selection, the number of noise absorbing elements used can also have an influence. Exemplary, but nonlimiting, surface sizes range from 200 to 2000 mm in the x-direction (see 1 and 2 ) and 800 to 3000 mm in the y-direction, preferably (and sometimes standardized) from 500 to 150 mm in the x-direction and from 1200 to 2200 mm in the y-direction, for example (but not limited to) 700 to 900 mm in the x direction and 1400 to 1900 mm in the y direction. For example, the noise absorbing elements may have dimensions from 800 to 1600 mm.

It is possible according to the invention that a single sound absorber element 110 applied (that is, set up). This can for example be done so that the acoustic separation of two subspaces of a larger space, a single sound absorber element 110 is placed in the larger room to form two subspaces. According to the invention, the case is preferred in that several, ie at least two, sound-absorbing elements 110 come into use. This case is in 2 shown in which one of the elements 110 extends substantially in the direction of the paper plane and extends the other of the two elements shown in the direction of the viewer. However, preferred embodiments of the invention are also feasible, in which 3, 4, 5, 6, 7, 8, 9 or 10 or even more sound absorber elements 110 come into use. This may be in contiguous groups of two or more noise absorbing elements arranged in series 110 done, or the individual sound absorber elements 110 are in some separation from each other (eg in pairs of two sound absorber elements 110 ) used. This can be a spatial separation on essentially the same level or on different levels of a room. In accordance with the invention, two (or more) sound absorbing elements may also be used 110 be arranged in front of each other so that (assuming that the noise / sound propagates in the coordinate direction "z"), two or more noise absorbing elements 110 in "z" direction to each other or can be arranged one behind the other on the same level or offset in height.

According to the invention is a noise absorber element 110 individually or are several noise absorber elements 110 separated or in a group or in several groups of several elements 110 on at least one standing or hanging device 120 arranged. Under a stand device 120 In the present description and in the claims for protection, a device is disclosed 120 understood, which is on the ground or on the floor of the room in which a noise reduction, climate improvement and / or air purification is to be achieved. For example, as a non-limiting example, in such a case a stand-alone device may 120 a frame on which one or more sound absorber element (s) 110 is / are and which is directly on the ground or on the floor of the room or elevated mounted on other devices. In the case of a single sound absorber element 110 can the stand or frame 120 on sufficiently large to be dimensioned plate feet to prevent falling over. This can be selected by a specialist according to the circumstances. 2 shows the case where the frame of the stand device 120 with two sound absorber elements 110 standing directly on the ground on feet. Alternatively, a hanging device 120 a device (eg a frame) suspended on a vertical or predominantly vertical wall or on a horizontal or predominantly horizontal ceiling by means of suitable means (cords, wires, bands, bars, tubes or the like) and on the one or more sound absorber element (s) 110 arranged, z. B. are attached. According to the invention, a device 120 for arranging one or more sound absorber element (s) 110 can be used, or several, for example, two, three, four or more devices 120 for arranging one or more sound absorbing elements 110 be used.

According to the invention, the sound-absorbing material is on the at least one, preferably on the one, device 120 in the form of a continuous, counter-running book-like loops 115 . 115 ' is arranged forming web. The loop bends of the web are in a plane perpendicular to the web 105 like this in 2 is drawn.

Such running material webs are often referred to as "meandering webs" because they - as well as from the 1 and 3 visible - continuous, in their course opposite arranged, bay-like loops 115 (in one direction), 115 ' (in the opposite direction) form and the loop arches in a plane (see the supervision in 3 and the perspective view in 1 ), which are perpendicular to the material web 105 is like this in 2 is drawn.

This "meandering" process will not only significantly improve the mechanical stability of the noise absorber element 110 achieved and thus its "stability" against an element 110 Substantially improved with a simple felt felt surface. Surprisingly, significantly better properties of sound insulation, air quality and air conditioning are achieved than with noise absorbers 100 and their sound absorber elements 110 of the prior art, for example, those of the prior utility model no. DE 20 2011 103 090.

Like from the 1 . 2 and 3 is apparent, is a sound absorber 100 a preferred embodiment of the invention, which can be realized alone or together with one or more other features of the invention, characterized by the further advantageous feature that the continuous, counter-rotating book-like loops 115 . 115 ' forming material web is suitable, open at the upper and lower end surfaces, but otherwise substantially closed air spaces 117 . 117 ' to form with sound-absorbing characteristics.

Especially 1 and 3 show that the vertical material webs of the sound absorber elements 110 continuous and forming bay-like loops 115 . 115 ' run, ie in the manner of a meander pattern. The respective loops 115 . 115 ' are in continuous course of the web of - for example, but not limiting - wool felt material arranged in opposite directions, which is understood that the loop bays (in the 1 and 3 clearly visible and with the reference numbers 115 and 115 ' two) in the course of the wool felt material web successive loops - in the direction "z" perpendicular to the wool felt material web level 105 "Xy" - lying diametrically opposite each other. In this way, a respective loop cove forms a substantially closed airspace with the opposite "V" shaped tip 117 , And the respective, in the continuous course of the material web preceding loop cove with the opposite tip forms - as well as the respective, in the continuous course of the web following loop cove with the opposite tip - each a further substantially closed airspace 117 ' , By "substantially closed airspace" is understood in the present description and in the protection claims that the respective air spaces in a horizontal dimension (ie in the by the Coordinate "z") are enclosed by the wool felt material web (not limiting in the preceding example) and are open at the top and bottom ends (in the direction indicated by the coordinate "y") and in exchange with the environment. Basically, there are also noise absorber elements 110 possible where the upper and lower ends

The thus formed plurality of adjacent, enclosed only by the continuous material web air spaces 117 . 117 ' contributes in addition to the insulating performance of the material web to the insulation of sound. However, it also makes a contribution to improving the indoor climate and cleaning the room air.

As in particular from 2 is apparent, is a sound absorber 100 a preferred embodiment of the invention, which can be realized alone or together with one or more other features of the invention, characterized by the further advantageous feature that the sound-absorbing material of the at least one flat or spatial sound absorber element 110 at the device 120 by means of at least one fastening element 125 is arranged. It can according to the invention a fastener 125 can be used, or it can according to the invention two or more, for example, 2, 3, 4, 5 or 6 or even more fasteners 125 . 125 ' be used. Those skilled in this technical field are suitable fasteners for such purposes 125 known in different embodiments. Such known fasteners may be used for the purpose of securing one or more noise absorbing elements 110 on a device 120 selected by the expert according to the circumstances. Examples of known fasteners 120 are bands (made of any suitable materials), loops, especially loops with Velcro, which are reversible on the device 120 attach or turn reversibly back from the device 120 let loose, rivets, rods, etc ..

In a particularly advantageous and therefore particularly preferred embodiment of the sound absorber according to the invention 100 , which can be realized alone or together with one or more other features of the invention, the attachment of one or more noise absorbing elements takes place 110 preferably by means of one or two fastening elements (s) 125 . 125 ' even more preferably by means of one or two fixing rods 125 . 125 ' , the / the continuous, counter-rotating book-like loops 115 . 115 ' forming material web perpendicular to the plane of the web 105 pierces / punctured. These are in the web at the height of the course of the fasteners or (preferably, but not limiting) mounting rods 125 . 125 ' Openings are provided which carry out such fastening means 125 . 125 ' allow. These fasteners / tie rods passed through the openings 125 . 125 ' , in the 2 are indicated by dashed lines are then used to secure to the at least one device 120 For example, a stand or hanging device 120 even more preferred but not restrictive: on a stand or hanging frame 120 , secured. As a result, therefore, a mechanically stable attachment of the sound absorber elements 110 of the sound absorber 100 according to the invention, so that the individual or grouped or suspended noise absorbing elements 110 in their configuration with the form of a continuous, counter-running book-like loops 115 . 115 ' forming web, the loop-bow in a plane perpendicular to the web 105 are, are mechanically stable.

The sound absorber according to the invention 100 according to the above detailed description can serve many purposes. According to the invention, the sound insulation in rooms, especially in high rooms, and / or the stabilization and balancing of the room climate, so an air conditioning, especially the regulation of moisture in rooms, especially in high rooms, due to the comfortable reversible absorption of moisture by the materials the preferably usable sound absorber, for example when wool felt is used as its material, and / or to call the cleaning of the air in rooms, especially in high rooms, as examples, without limiting the invention to these purposes.

 The invention has been described above by way of example with reference to the figures and the preferred embodiments shown therein. However, the invention is not limited to the preferred embodiments, which serve primarily to an exemplary description of the invention for the better understanding thereof, but to all embodiments falling under the appended claims.

LIST OF REFERENCE NUMBERS

100

 sound absorber

105

 Plane of the material web

110

 Flat or spatial (sound absorber) element

115, 115 '

 Continuous, counter-running bay-like loops

117, 117 '

 Closed airspaces

120

 Stand or hanging device

125, 125 '

 fastener

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202011103090 U1 [0005]
• DE 202011103090 U [0030]

Claims (7)

Noise absorber ( 100 ) of a sound-absorbing material in the form of at least one planar or spatial element ( 110 ), individually or in a group of several elements on at least one standing or hanging device ( 120 ), wherein the sound absorbing material on the at least one device ( 120 ) in the form of a continuous, counter-rotating book-like loops ( 115 . 115 ' ) forming material web is arranged, the loop-sheets in a plane perpendicular to the material web ( 105 ) are. Noise absorber ( 100 ) according to claim 1, wherein the sound-absorbing material of the at least one planar or spatial element ( 110 ) on the at least one device ( 120 ) by means of at least one fastening element ( 125 ) is arranged, preferably by means of one or two fastening elements (s) ( 125 . 125 ' ) containing the continuous, counter-rotating book-like loops ( 115 . 115 ' ) forming material web perpendicular to the plane of the material web ( 105 ) pierces / pierces. Noise absorber ( 100 ) according to claim 1 or claim 2, wherein the continuous, counter-rotating book-like loops ( 115 . 115 ' ) is suitable, on the upper and lower end surfaces open, but otherwise substantially closed air spaces ( 117 . 117 ' ) with sound-absorbing characteristics. Noise absorber ( 100 ) according to one or more of claims 1 to 3, made of a material from the group of wood-based materials, textile-based materials, paper-based or paperboard-based materials, natural stone-based materials, materials based on synthetic building materials or materials Base of composites of the aforesaid materials, preferably made from a textile-based material of natural or synthetic origin, more preferably made from a felt material, even more preferably made from wool felt, more preferably made from wool felt having a thickness in the range from 1 to 10 mm, more preferably wool felt with a thickness in the range of 2 to 5 mm. Noise absorber ( 100 ) according to any one or more of claims 1 to 4 for soundproofing in rooms, preferably in high rooms. Noise absorber ( 100 ) according to one or more of claims 1 to 4 for the air conditioning of rooms, in particular for controlling the room humidity in rooms, preferably in high rooms. Noise absorber ( 100 ) according to any one or more of claims 1 to 4 for purifying the air in rooms, preferably in high rooms.

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