EP3416161A1 - Rideau de séparation absorbant le son - Google Patents

Rideau de séparation absorbant le son Download PDF

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Publication number
EP3416161A1
EP3416161A1 EP18177411.8A EP18177411A EP3416161A1 EP 3416161 A1 EP3416161 A1 EP 3416161A1 EP 18177411 A EP18177411 A EP 18177411A EP 3416161 A1 EP3416161 A1 EP 3416161A1
Authority
EP
European Patent Office
Prior art keywords
absorption
layer
sound
curtain
regions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18177411.8A
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German (de)
English (en)
Inventor
Dr. Moritz Späh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP3416161A1 publication Critical patent/EP3416161A1/fr
Pending legal-status Critical Current

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8227—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only screens ; Arrangements of sound-absorbing elements, e.g. baffles

Definitions

  • the application relates to a sound-absorbing hall curtain for sports halls, event and exhibition halls, workshops and similar rooms.
  • Curtains for sports halls are usually made of two-ply plastic film or plastic tarpaulin or synthetic leather and lowered if necessary from the hall ceiling. This can be achieved that a hall divided into sections and each hall can be used by different groups of people for different or the same sports. In other halls, the use of partial areas of the hall is possible through a hall curtain.
  • Hall dividing curtains are therefore regularly soundproofed, which means that the passage of sound from one part hall to the next part hall is reduced by the hall dividing curtain. This leaves a relatively high level of noise in the individual part halls.
  • the hall curtains usually provide no satisfactory broadband sound absorption. This means that the sound incident on the hall curtain, although reduced through the curtain, enters the adjacent hall, but much of it reflects off the hall curtain rather than being absorbed in the hall curtain, thus attenuating the sound field in the room and reducing the level.
  • a headraffbarer curtain for sports halls, halls or the like known.
  • This has horizontally opposite curtain tracks, which are connected with cross cords.
  • the curtain tracks can be pulled together by pulling straps.
  • At least one of the curtain tracks is perforated.
  • at least one curtain track has a perforated front wall, which faces the hall or hall part space, and a rear wall. Between front wall and rear wall, a fleece-like sound absorption material is arranged. As a rule, two such curtain tracks are available.
  • a high-lift curtain for large rooms known.
  • This has two curtain tracks, which are connected at regular height intervals by cross members. The lower ends are connected via tension members with a motor-driven take-up shaft.
  • At least one of the curtain tracks consists of an internal sound absorption view and an outer layer of holes provided with plastic.
  • the object of the present invention is to provide an easily configurable curtain which has both a satisfactory sound insulation as well as a satisfactory sound absorption.
  • the solution of the problem can be found in particular in claim 1.
  • the dependent claims indicate advantageous developments. The description gives more details and instructions for solving the problem.
  • a separating curtain in particular for halls, including, for example, sports, event and trade fair halls, is to be provided, which has two layers and is distinguished by the fact that each of the layers has absorption regions and insulating regions.
  • the absorption areas and insulation areas are adjacent within a layer. In this case, in the absorption areas, the sound absorption is higher than in the insulating areas. In the insulating areas, the sound insulation is higher than in the absorption areas.
  • the absorption regions of one layer lie opposite the insulating regions of the other layer.
  • absorption region is to be understood as recognizable in a certain way as an artificial word.
  • absorption range is to be understood as meaning a region in which the sound absorption is higher than in the aforementioned insulating regions.
  • the insulating areas are areas in which the sound insulation is higher than in the absorption areas.
  • sound absorption also occurs in the absorption areas. This is due to the fact that, of course, any absorption also means that a little less sound can enter the adjacent room, which also causes a sound insulation.
  • the selected terms are intended to clearly illustrate the effect in each area.
  • the absorption areas of one layer lie opposite the insulating areas of the other layer. This ensures that sound which is not adequately insulated in the absorption area of one layer and thus would reach the other part hall is insulated in the other layer in which an insulation area is located at the said location.
  • absorption areas and insulating areas are alternately arranged in the first part-facing layer, an absorption area and then an insulation area being arranged starting from the top, an insulation area is first arranged on the layer facing the other part hall, and then a Absorption area follow.
  • the finding is used that it is generally sufficient if only in individual absorption areas a sufficiently high sound absorption is achieved. Thus, a total of sufficiently high sound absorption can be achieved.
  • the spacing of the layers from each other can be used.
  • the distance between the layers is significant.
  • the absorption areas are, for example, a perforated area and / or a microperforated area and / or areas equipped with a nonwoven. It is normally an area through which sound with a certain flow resistance can penetrate.
  • the absorption does not take place solely in the layer itself, but in conjunction with the volume between the layer with the absorption region and the further layer which has an insulating region there.
  • the distance between the layers in the diction of the above DE 198 32 723 A1the distance between the curtain tracks, can therefore be used acoustically.
  • the frequency range in which the absorption takes place depends on the distance of the layers.
  • the DE 198 32 723 A1 For this purpose, only the distance between the front wall and the rear wall in a curtain track is available. Given the limited depth of a curtain is thus in the DE 198 32 723 A1 a smaller distance available. This results in only higher frequencies being absorbed and thus the relevant noises can not be absorbed.
  • the present invention differs not only structurally from the DE 198 32 723 A1 , but also allows a better acoustic function with significantly extended frequency range of sound absorption with limited depth.
  • connecting elements extend between the layers, which prevent the passage of the sound from one spatial region between the layers to an adjacent spatial region between the layers.
  • the connecting elements preferably depart at the boundaries of absorption regions to the insulating regions of a layer and arrive at the boundaries of absorption regions to the insulating regions of the opposite layer accordingly.
  • the absorption regions are formed by a perforated region.
  • a perforated region As will be illustrated below, a number of perforated absorption configurations are conceivable and well suited for absorption. However, it is easy to see that a perforated area usually has a higher passage of sound than a closed area. This clarifies the above-mentioned conflict of objectives between sound insulation and sound absorption, which leads to different effects in different areas.
  • the absorption regions are formed by a microperforated absorber layer.
  • the principle of sound absorption by microperforation is well known and should therefore be shown only very briefly at this point.
  • Sound penetrating a perforated layer ie a layer with holes with a diameter of normally 1 - 2 mm and below, even slightly different values are conceivable, and penetrates a hole area fraction of a few percent.
  • the underlying mechanism of action is the excitation of vibrations that ultimately convert the recorded sound into heat.
  • the volume of air is completed by the acoustically closed fasteners to the microperforated position.
  • the absorption regions are formed by a layer with holes which are sound-permeable, in particular holes having a diameter of 1 mm to 8 mm are selected. Compared to the micro perforation bigger holes are chosen.
  • the absorption regions are provided with an additional flow resistance, in particular with an acoustic fleece.
  • the flow resistance is applied on the side of the respective hall or within the separation curtain, preferably on the perforated layer or arranged loosely in front of it. This allows a relatively simple design.
  • the additional flow resistance does not have to provide for the absorption alone, but only in cooperation with the perforated area. This is a difference to the beginning EP 1 174 063 A1 ,
  • the absorption regions are formed by a textile.
  • Such textiles are readily available at a low price.
  • a total flow resistance in the range of about 50 Pa s / m to about 3000 Pa s / m, acoustic useful solutions are achieved.
  • An acoustically optimized sound absorption results with a flow resistance in the range from about 300 Pa s / m to about 1000 Pa s / m.
  • perforated is not to be construed as meaning only a region which would initially be a closed region into which holes would subsequently be introduced by some type of perforation process the perforated area would result. It may also be an area which is already provided with holes in its manufacture, as is the case for example with a textile.
  • the absorption areas and / or the Dämm Kunststoffe and / or at least one layer are two-ply.
  • Two-ply layers often allow for higher acoustic efficiency compared to a single ply layer of the same thickness. This applies in particular to the sound absorption, which is in the foreground in the absorption areas.
  • a two-layer coating can achieve improved sound absorption, improved sound insulation or both. If, for example, improved sound absorption is desired on only one side, the layer facing this side, more precisely the absorption regions of this layer, can also be designed in two layers. It is also possible to make only single absorption areas or Dämm Kunststoffe a layer two-ply.
  • the layers of the separation curtain are divided into segments and fauxraffbar.
  • curtains are often designed so that they can be lowered from a hall ceiling and of course also pulled back up, so can be gathered. Instead of lowering from top to bottom, of course, a lateral movement would be conceivable. It should not be excluded that the curtain is raised from the bottom up. Of course, then there is the problem that the gathered curtain on the floor usually bothers more than on the ceiling and any accommodation would have to be created.
  • the segments are adjacent webs that span the entire width of the curtain. Adjacent segments are so joined together, so sewed together, for example, that the curtain can be like a bellows gathered together when it is not needed, and can be unfolded, if he is needed. It is understood that in addition to the subdivision into segments additionally a pulling mechanism, that is about a running between the layers of rope must be present in order to assemble the curtain when needed and also to unfold again.
  • the above-mentioned extent of the segments across the width of the curtain - be it the entire width of the curtain or only one part - applies in the event that the curtain can be lowered from the hall ceiling.
  • the segments run horizontally.
  • the segments are correspondingly vertical.
  • a segment forms a respective Dämm Kunststoff or an absorption area.
  • the different areas ie the respective absorption areas and the respective Dämm Kunststoffe, can be realized in a layer in a simple manner.
  • individual segments are used so that the curtain is fauxraffbar.
  • the connecting elements described above preferably run between the boundaries of adjacent segments.
  • the above-described connecting elements have feedthroughs for a pulling element for pulling the separating curtain together.
  • This can be on the usual structure of such separation processes, in which the tension member is disposed between the layers, are held. If the feedthroughs are designed to be soundproof, unwanted sound transmission in the area of the feedthroughs is prevented.
  • FIG. 1 is a curtain 1 to recognize.
  • a first layer 3 which lies on the left in the drawing.
  • This layer 3 has three exemplary selected segments 4, 5 and 6.
  • Segment 4 is an area serving as the absorption area. This is formed by a perforated layer.
  • the adjacent segment 5 is a Dämm Anlagen which is formed by a continuous curtain without perforation.
  • This is in turn followed by a segment 6 which, like the segment 4, is formed by a perforated layer and serves as an absorbent segment.
  • the second layer 7 is on the other side.
  • segment 8 is formed as an insulating region with a continuous layer, just like the segment 10.
  • segment 9 is perforated and serves as an absorption region .
  • the segments 4 and 6 of the first layer 3 and the segment 9 of the second layer 7 are identical.
  • the connecting elements 11 can be seen. The connecting elements 11 run between the first layer 3 and the second layer 7 between the boundaries of adjacent segments.
  • a pull rope 12 which serves as a tension element.
  • the lifting device 2 By rotation of the lifting device 2, the separating curtain 1 can be lifted and thus gathered. By rotating in the opposite direction, the curtain 1 can be lowered. The gravity, which leads to a unfolding of the separation curtain 1 helps.
  • FIG. 2 is a connecting element 11 shown in more detail. It can be seen that the traction cable 12 is guided by the connecting element 11. This is a Sealing area 13 is provided. This is on the one hand designed so that by a movement of the traction cable 12 on the one hand the traction cable 12 can be pulled through the connecting element 11. In addition, it is intended to prevent an opening being created in the region of the passage of the traction cable 12 by the connecting element 11, which allows the sound to pass from one side of the connecting element 11 to the other side of the connecting element 11. As far as it is spoken of a prevention of the sound passage, this of course does not mean that a complete prevention of the sound passage could be achieved or should. It's just that the sound transmission is significantly reduced.
  • FIGS. 3a . 3b and 3c show different embodiments of the separation curtain. 1
  • the in Fig. 3b Separation curtain 1 shown has two-layered segments 5, 8 and 10, which form the Dämm Society.
  • the absorption region forming segments 4, 6 and 9 are single-layered. Thus, increased sound insulation is achieved with normal sound absorption.
  • FIG 3c is a separation curtain 1 can be seen, in which all segments, 4, 5, 6, 8, 9 and 10 are formed in two layers. This achieves both increased sound absorption and increased sound insulation.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
EP18177411.8A 2017-06-13 2018-06-12 Rideau de séparation absorbant le son Pending EP3416161A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017113033.0A DE102017113033A1 (de) 2017-06-13 2017-06-13 Schallabsorbierender Trennvorhang

Publications (1)

Publication Number Publication Date
EP3416161A1 true EP3416161A1 (fr) 2018-12-19

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ID=62791487

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EP18177411.8A Pending EP3416161A1 (fr) 2017-06-13 2018-06-12 Rideau de séparation absorbant le son

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EP (1) EP3416161A1 (fr)
DE (1) DE102017113033A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3739161A1 (fr) * 2019-05-13 2020-11-18 Trenomat GmbH & Co. KG Dispositif de séparation, par exemple, pour salles de sport

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0887279A (ja) * 1994-09-14 1996-04-02 Osaka Filter Kogyo Kk 吸音体
US5834711A (en) * 1997-07-09 1998-11-10 Johns Manville International, Inc. Sound control through resonance damping
DE19832723A1 (de) * 1998-07-21 2000-01-27 Eisenberg Hans Jochen Hochraffbarer Trennvorhang für Sporthallen, Säle oder dergleichen
US6112852A (en) * 1999-09-22 2000-09-05 Rpg Diffusor Systems, Inc. Acoustical treatments with diffusive and absorptive properties and process of design
WO2003018925A1 (fr) * 2001-08-23 2003-03-06 G. P. Embelton & Co. Pty. Ltd. Panneau insonorisant
DE102004040112A1 (de) * 2003-08-18 2005-03-10 Holzindustrie Leitinger Gmbh W Schallabsorbierendes Element
US20100307866A1 (en) * 2007-10-24 2010-12-09 Silenceresearch Gmbh Sound absorber
US20130272551A1 (en) * 2010-12-23 2013-10-17 Kirchdorfer Fertigteilholding Gmbh Sound protection component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810597A1 (de) 1998-03-11 1999-10-14 Trenomat Gmbh & Co Kg Trennvorhang, insbesondere hochraffbarer Trennvorhang für Sporthallen, Veranstaltungs- und Messehallen, Industriehallen, Säle o. dgl.
ATE266344T1 (de) * 2000-07-20 2004-05-15 Trenomat Gmbh & Co Kg Trennvorhang, insbesondere trennvorhang für sporthallen, veranstaltungs- und messehallen, industriehallen, säle od. dgl.
DE102012021446A1 (de) * 2012-10-31 2014-04-30 Sws Systemtechnik Gmbh & Co. Kg Trennvorhang, Verfahren zur Herstellung eines Trennvorhangs und Vorrichtung zur Durchführung des Verfahrens

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0887279A (ja) * 1994-09-14 1996-04-02 Osaka Filter Kogyo Kk 吸音体
US5834711A (en) * 1997-07-09 1998-11-10 Johns Manville International, Inc. Sound control through resonance damping
DE19832723A1 (de) * 1998-07-21 2000-01-27 Eisenberg Hans Jochen Hochraffbarer Trennvorhang für Sporthallen, Säle oder dergleichen
US6112852A (en) * 1999-09-22 2000-09-05 Rpg Diffusor Systems, Inc. Acoustical treatments with diffusive and absorptive properties and process of design
WO2003018925A1 (fr) * 2001-08-23 2003-03-06 G. P. Embelton & Co. Pty. Ltd. Panneau insonorisant
DE102004040112A1 (de) * 2003-08-18 2005-03-10 Holzindustrie Leitinger Gmbh W Schallabsorbierendes Element
US20100307866A1 (en) * 2007-10-24 2010-12-09 Silenceresearch Gmbh Sound absorber
US20130272551A1 (en) * 2010-12-23 2013-10-17 Kirchdorfer Fertigteilholding Gmbh Sound protection component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3739161A1 (fr) * 2019-05-13 2020-11-18 Trenomat GmbH & Co. KG Dispositif de séparation, par exemple, pour salles de sport
EP3805511A1 (fr) * 2019-05-13 2021-04-14 Trenomat GmbH & Co. KG Dispositif de séparation, par exemple, pour salles de sport

Also Published As

Publication number Publication date
DE102017113033A8 (de) 2019-02-28
DE102017113033A1 (de) 2018-12-13

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Owner name: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.