EP0816583B1 - Device to reduce sound levels in buildings - Google Patents

Device to reduce sound levels in buildings Download PDF

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Publication number
EP0816583B1
EP0816583B1 EP97111079A EP97111079A EP0816583B1 EP 0816583 B1 EP0816583 B1 EP 0816583B1 EP 97111079 A EP97111079 A EP 97111079A EP 97111079 A EP97111079 A EP 97111079A EP 0816583 B1 EP0816583 B1 EP 0816583B1
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EP
European Patent Office
Prior art keywords
sheets
carrier
sound
micro
buildings
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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.)
Expired - Lifetime
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EP97111079A
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German (de)
French (fr)
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EP0816583A1 (en
Inventor
Horst Wenski
Heinz Zapletan
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Kaefer Isoliertechnik GmbH and Co KG
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Kaefer Isoliertechnik GmbH and Co KG
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    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B1/8409—Sound-absorbing elements sheet-shaped
    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
    • E04B9/36—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats
    • E04B9/366—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats the principal plane of the slats being vertical
    • 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
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/8281—Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface
    • 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
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/829—Flat elements mounted at an angle, e.g. right angle, to the supporting surface
    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
    • 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
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members

Definitions

  • the invention relates to a device for Reduction of noise levels in buildings after The preamble of claim 1 or 7.
  • Such a device is by SCHNEIDER et al .: "Resoflex (new), a sound and heat insulating Filling material for double walls ", Glasers Annalen, Vol. 93, No. 9, September 1969, pages 290 and 291 become. Resoflex is a registered trademark.
  • This device consists of several layers of alternately arranged airtight films and corrugated, perforated foils. The device is overall impermeable to air and due to the aforementioned construction stiff.
  • DE 44 37 196 C1 is a sound absorbing Artificial glass component described, which consists of at least two perforated plastic plates, between which to Example paper strips or foils from another Material are arranged as spacers, and their Perforations are not mutually overlapping.
  • the Effect of such devices for sound absorption is based according to the explanations in the text of this document, that in a variety of formed by the perforations Cavities an absorption of sound waves in front of a reverberant boundary wall in the audible frequency range takes place.
  • DE 42 20 434 A1 is a Soundproofing device for buildings disclosed which a sound absorbing film, which is attached to their Side edges of sealing lips of a profile frame is bordered, which is close to the sound insulation a window or door opening of a building becomes.
  • the invention has for its object a inexpensive to manufacture and versatile Device for sound insulation in rooms of a building too design that changing as easily as possible Needs can be adjusted and a broadband Sound absorption guaranteed.
  • micro-perforated Foils spaced apart and parallel to each other in an upper beam made of a rigid Material and a lower one, also from one rigid material existing carrier tensioned, so that the slides by the weight of the lower, support are burdened.
  • perforated foils are included a distance from each other in packets between the common upper carrier and the common lower Carrier arranged.
  • Soundproofing devices with the Invention features are either individually or too several in a row like aprons in the overhead area hanging in a room or attached to fixtures.
  • the training features of claim 7 provide that the attachment of the microperforated foils in the upper carrier each on a rotatable roller takes place so that the films partially or entirely on this Roll can be wound up to make one hand the setting of optimal sound absorbing effects achieve and on the other hand adaptations allow usage-related free spaces in the room.
  • the device for reducing sound levels in Buildings or the like consists of or several arranged in proximity to each other Soundproofing elements 1.
  • Each soundproofing element 1 is made of packets 2 arranged with a foil Microperforation built up, with two or more microperforated foils 2 parallel to each other and with a distance from one another between an upper carrier 3 made of a rigid material, for example metal, Plastic or wood, and a lower support 4, which is also made of a rigid material exists, are excited.
  • the slides 2 one Sound damping element 1 thus have a common one upper carrier 3 and a common lower carrier 4th on.
  • the distance of the foils 2 from each other in a horizontal Direction can be by intermediate layers of the carrier 3 and 4th be achieved as shown in the drawing.
  • the lower carrier 4 is with the upper carrier 3 of each sound absorbing element 1 by a tensile securing member 5, for example by means of wire ropes arranged at intervals connected.
  • FIG. 1 shows the hanging Attachment of several soundproofing elements 1 in immediate neighborhood to each other and in apron-like arrangement.
  • the top beam 3 each Soundproofing element 1 is U-shaped Support bracket 6 on hanging ropes 7, chains or brackets attached.
  • Figure 2 illustrates the rigid Attachment of a soundproofing element 1 to a Wall, a ledge or other fixed Component within a building room, for example by means of angled fastening clamps 8, which with the building wall 9 or the like are screwed.
  • FIG. 4 schematically illustrates the arrangement of Winding rolls 10 within the upper carrier 3, wherein each micro-perforated film 2 with its upper end such a winding roll 10 runs so that the depending and thus effective film length changed can be, as previously explained. If necessary, the tensile securing member 5 combined with a corresponding rewinder his.
  • the foils 2 have one in all exemplary embodiments Thickness up to (less than or equal to) 1 mm.
  • the Microperforation is through holes with a diameter formed from 0.1 to 0.4 mm.
  • the free cross section so the sum of all hole cross sections is 0.7 to 1.5%. It applies that with increasing film thickness also Hole diameter may increase. So the smaller the Film thickness, the smaller it should be Hole diameters can be chosen to be good To achieve absorption results.
  • the above The upper limit for the hole diameter of 0.4 mm applies therefore for foils with a thickness of almost 1 mm.
  • the free cross section can be independent of the film thickness to get voted.
  • Fig. 5 shows a specific application.
  • Two layers of microperforated foils 2.1 and 2.2 are in front of one hard wall 9 or a window arranged.
  • the Distance of the first film layer 2.1 to the wall 9 or the Window is 100 mm.
  • the distance between the two Foil layers 2.1 and 2.2 to each other is 30 mm.
  • the absorption curve shown in FIG. 6 is based on a test with the arrangement shown in Fig. 5.
  • the Foils 2.1, 2.2 had a thickness of 0.105 mm.
  • the hole diameter for the Microperforation was 0.21 mm with a hole spacing of 0.2 mm, corresponding to a free cross section of 1%.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The device has noise-absorbing elements (1) with parallel sheets (2) which are spaced from one another. The sheets are tensioned, and have microscopic perforations. The sheets may be tensioned between an upper support (3) which is made from a material which is stiff in bending, and a lower support (4), which is made from a similarly stiff material. The tension may be due to the weight of the lower support. The supports may also be connected to each other by a tensile securing element (5). The elements may be fixed behind one another above head level, in the manner of a skirt, and preferably may be attached to the ceiling of a room.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Verminderung von Schallpegeln in Gebäuden nach dem Oberbegriff des Patentanspruches 1 oder 7.The invention relates to a device for Reduction of noise levels in buildings after The preamble of claim 1 or 7.

Eine solche Vorrichtung ist durch SCHNEIDER et al.: "Resoflex (neu), ein schall- und wärmeisolierendes Füllmaterial für Doppelwände", Glasers Annalen, Bd. 93, Nr. 9, September 1969, Seiten 290 und 291 bekannt geworden. Resoflex ist ein eingetragenes Warenzeichen. Diese Vorrichtung besteht aus mehreren Lagen von abwechselnd angeordneten luftundurchlässigen Folien und gewellten, perforierten Folien. Die Vorrichtung ist somit insgesamt luftundurchlässig und aufgrund des vorgenannten Aufbaus steif.Such a device is by SCHNEIDER et al .: "Resoflex (new), a sound and heat insulating Filling material for double walls ", Glasers Annalen, Vol. 93, No. 9, September 1969, pages 290 and 291 become. Resoflex is a registered trademark. This device consists of several layers of alternately arranged airtight films and corrugated, perforated foils. The device is overall impermeable to air and due to the aforementioned construction stiff.

In der DE 44 37 196 C1 wird ein schallabsorbierendes Kunstglasbauteil beschrieben, welches aus wenigstens zwei gelochten Kunststoffplatten besteht, zwischen denen zum Beispiel Papierstreifen oder Folien aus einem anderen Werkstoff als Abstandhalter angeordnet sind, und deren Lochungen nicht in gegenseitiger Überdeckung liegen. Die Wirkung solcher Vorrichtungen zur Schallabsorption beruht nach den Darlegungen im Text dieser Druckschrift darauf, daß in einer Vielzahl von durch die Lochungen gebildeten Hohlräumen eine Absorption von Schallwellen vor einer schallharten Begrenzungswand im hörbaren Frequenzbereich stattfindet.DE 44 37 196 C1 is a sound absorbing Artificial glass component described, which consists of at least two perforated plastic plates, between which to Example paper strips or foils from another Material are arranged as spacers, and their Perforations are not mutually overlapping. The Effect of such devices for sound absorption is based according to the explanations in the text of this document, that in a variety of formed by the perforations Cavities an absorption of sound waves in front of a reverberant boundary wall in the audible frequency range takes place.

Aus der DE 43 15 759 C1 sind auch mikroperforierte Platten mit kleinen Durchmessern der Lochungen für den Aufbau einer Vorrichtung zur Schallabsorption bekannt.DE 43 15 759 C1 are also micro-perforated Slabs with small diameters for the holes Structure of a device for sound absorption is known.

Die DE 44 08 782 A1 offenbart einen sogenannten Folienabsorber, bei dem mehrere Folien lagenweise übereinander gespannt sind. Dieses Folienpaket ist seinerseits vor eine schallharte Wand gespannt. Jede Folie bildet mit der hinter ihr angeordneten Luft ein Feder-Masse-System, welches Schall im Bereich seiner Resonazfrequenz absorbiert. Um eine möglichst breitbandige Schallabsorption zu erhalten, sind viele Lagen luftundurchlässiger Folien erforderlich.DE 44 08 782 A1 discloses a so-called Foil absorber, in which several foils in layers are stretched over each other. This foil package is in turn stretched against a reverberant wall. Each Foil forms with the air behind it Spring mass system, which sound in the area of its Resonance frequency absorbed. To one if possible There are many to obtain broadband sound absorption Layers of airtight foils are required.

Durch die DE 42 20 434 A1 wird eine Schallschutzvorrichtung für Gebäude offenbart, welche aus einer schallabsorbierenden Folie besteht, die an ihren Seitenkanten von Dichtlippen eines Profilrahmens eingefaßt ist, welcher zur Schallisolierung dicht vor einer Fenster- oder Türöffnung eines Gebäudes angeordnet wird.DE 42 20 434 A1 is a Soundproofing device for buildings disclosed which a sound absorbing film, which is attached to their Side edges of sealing lips of a profile frame is bordered, which is close to the sound insulation a window or door opening of a building becomes.

Der Erfindung liegt die Aufgabe zugrunde, eine kostengünstig herstellbare und vielseitig einsetzbare Vorrichtung zur Schalldämmung in Räumen eines Gebäudes zu gestalten, die möglichst leicht an sich ändernde Bedarfsfälle angepaßt werden kann und eine breitbandige Schallabsorption gewährleistet.The invention has for its object a inexpensive to manufacture and versatile Device for sound insulation in rooms of a building too design that changing as easily as possible Needs can be adjusted and a broadband Sound absorption guaranteed.

Erfindungsgemäß wird zur Lösung dieser Aufgabe eine Ausbildung mit den Merkmalen nach den Patentansprüchen 1 oder 7 vorgeschlagen. According to the invention a solution to this problem Training with the features according to claims 1 or 7 suggested.

Mit Ausbildungsmerkmalen gemäß Anspruch 1 lassen sich unter Vermeidung von Mineralwolle für die Schallabsorption beliebig figurierte Schalldämpfungselemente gestalten, die in Räumen an Wänden oder Decken mit Abständen voneinander befestigt werden. Diese Befestigung erfolgt vorzugsweise im Überkopfbereich der sich in dem Raum aufhaltenden Personen durch Aufhängung an der Decke oder anderweitige Befestigung an einer Wand oder Einbauten des Gebäuderaumes. Die Schallabsorption beruht hier auf dem Schwingen der Luft in den Löchern der Microperforation. Für den Fachmann überraschend schwingt die Luft dabei in den dünnen Folien (Dicke bis 1 mm) ohne Abriß. Eine eventuelle Luftdurchspülung bei in mehreren Lagen angeordneten Folien ist auf die Schallabsorption ohne Einfluß. Der Schallabsorptionseffekt ist vom Material der Folie unabhängig. Es eignen sich Kunststoffolien genauso wie Metallfolien. Die Folien können gespannt sein oder lose hängen bzw. flexibel bleiben. Auf die Schallabsorption hat die Spannung bzw. Flexibilität der Folie keinen Einfluß. Vorzugsweise geeignet sind Vorrichtungen zur Verminderung von Schallpegeln mit den Erfindungsmerkmalen zur Anwendung in Schwimmbädern oder in Werkhallen, in denen Nachhallzeiten reduziert werden sollen. Möglich ist auch die Kombination von Licht- und Schallschutz mit Vorrichtungen gemäß der Erfindung.With training features according to claim 1 can avoiding mineral wool for the Sound absorption figured arbitrarily Design soundproofing elements in rooms Walls or ceilings fastened at intervals become. This attachment is preferably done in Overhead area of those in the room People by hanging from the ceiling or otherwise Attachment to a wall or fixtures of the Building room. The sound absorption here is based on the Swinging air in the holes of the microperforation. Surprisingly for the expert, the air swings in the thin foils (thickness up to 1 mm) without tearing. A possible air purging in several layers arranged foils is without the sound absorption Influence. The sound absorption effect is from the material of the Slide independently. Plastic films are also suitable like metal foils. The foils can be stretched or hang loose or stay flexible. On the Sound absorption has the tension or flexibility of Slide no influence. Are preferably suitable Devices for reducing sound levels with the Features of the invention for use in swimming pools or in workshops where reverberation times are reduced should. It is also possible to combine light and Soundproofing with devices according to the invention.

Vorzugsweise werden zwei oder mehr mikroperforierte Folien mit einem Abstand voneinander und parallel zueinander in einem oberen Träger aus einem biegesteifen Werkstoff und einem unteren, ebenfalls aus einem biegesteifen Werkstoff bestehenden Träger gespannt, so daß die Folien durch das Gewicht des unteren, Trägers belastet sind. Mehrere perforierte Folien sind mit einem Abstand voneinander paketweise zwischen dem gemeinsamen oberen Träger und dem gemeinsamen unteren Träger angeordnet. Preferably two or more are micro-perforated Foils spaced apart and parallel to each other in an upper beam made of a rigid Material and a lower one, also from one rigid material existing carrier tensioned, so that the slides by the weight of the lower, support are burdened. Several perforated foils are included a distance from each other in packets between the common upper carrier and the common lower Carrier arranged.

Aus Sicherheitsgründen sollten zwischen dem oberen Träger und dem unteren Träger zugfeste Sicherungsglieder vorgesehen sein, um bei einem eventuellen Bruch der Folien, zum Beispiel infolge unsachgemäßer Behandlung, das Herabstürzen des unteren Trägers zu verhindern. Vorrichtungen zur Schalldämpfung mit den Erfindungsmerkmalen werden entweder einzeln oder zu mehreren hintereinander schürzenartig im Überkopfbereich eines Raumes hängend oder an Einbauten befestigt.For security reasons, should be between the top bracket and the lower beam tensile securing members to be provided in the event of a possible breakage of the Foils, for example as a result of improper handling, to prevent the lower beam from falling. Soundproofing devices with the Invention features are either individually or too several in a row like aprons in the overhead area hanging in a room or attached to fixtures.

Die Ausbildungsmerkmale des Anspruchs 7 sehen vor, daß die Befestigung der mikroperforierten Folien in dem oberen Träger jeweils an einer verdrehbaren Rolle erfolgt, so daß die Folien teilweise oder ganz auf diese Rolle aufgewickelt werden können, um dadurch einerseits die Einstellung optimaler schalldämpfender Wirkungen zu erreichen und andererseits Anpassungen an nutzungsbedingte Freiräume in dem Raum zu ermöglichen.The training features of claim 7 provide that the attachment of the microperforated foils in the upper carrier each on a rotatable roller takes place so that the films partially or entirely on this Roll can be wound up to make one hand the setting of optimal sound absorbing effects achieve and on the other hand adaptations allow usage-related free spaces in the room.

Weitere Merkmale beziehen sich auf die Ausgestaltung der Folie.Other features relate to the design of the Foil.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Es zeigen:

Fig. 1
eine Vorrichtung zur Verminderung von Schallpegeln in Gebäuden, bestehend aus mehreren hintereinander angeordneten Schallschutzelementen in perspektivischer Darstellung,
Fig. 2
ein einzelnes Schallschutzelement mit starrer Befestigung,
Fig. 3
einen vertikalen Querschnitt durch das Schallschutzelement in Figur 2 und
Fig. 4
ein Teilschema einer aufwickelbaren Schallschutzvorrichtung.
Fig. 5
eine abwickelbare Schallschutzvorrichtung mit zwei Lagen von Folien,
Fig. 6
eine Schallabsoptionskurve zur Schallschutzvorrichtung gem. Fig. 5
In the drawing, an embodiment of the invention is shown schematically. Show it:
Fig. 1
a device for reducing sound levels in buildings, consisting of several soundproofing elements arranged one behind the other in a perspective view,
Fig. 2
a single soundproofing element with rigid attachment,
Fig. 3
a vertical cross section through the soundproofing element in Figure 2 and
Fig. 4
a partial schematic of a windable soundproofing device.
Fig. 5
a developable soundproofing device with two layers of foils,
Fig. 6
a sound absorption curve for the sound insulation device acc. Fig. 5

Die Vorrichtung zur Verminderung von Schallpegeln in Gebäuden oder dergleichen besteht aus einem oder aus mehreren in Nachbarschaft zueinander angeordneten Schalldämpfungselementen 1. Jedes Schalldämpfungselement 1 ist aus paketweise angeordneten Folien 2 mit einer Mikroperforation aufgebaut, wobei zwei oder mehr mikroperforierte Folien 2 parallel zueinander und mit einem Abstand voneinander zwischen einem oberen Träger 3 aus einem biegesteifen Werkstoff, zum Beispiel Metall, Kunststoff oder auch Holz, und einem unteren Träger 4, welcher ebenfalls aus einem biegesteifen Werkstoff besteht, gespannt sind. Die Folien 2 eines Schalldämpfungselementes 1 weisen somit einen gemeinsamen oberen Träger 3 und einen gemeinsamen unteren Träger 4 auf. Der Abstand der Folien 2 voneinander in horizontaler Richtung kann durch Zwischenlagen der Träger 3 und 4 erreicht werden, wie es in der Zeichnung dargestellt ist. Aus Sicherheitsgründen ist der untere Träger 4 mit dem oberen Träger 3 eines jeden Schalldämpfungselementes 1 durch ein zugfestes Sicherungsglied 5, beispielsweise durch in Abständen angeordnete Drahtseile, miteinander verbunden.The device for reducing sound levels in Buildings or the like consists of or several arranged in proximity to each other Soundproofing elements 1. Each soundproofing element 1 is made of packets 2 arranged with a foil Microperforation built up, with two or more microperforated foils 2 parallel to each other and with a distance from one another between an upper carrier 3 made of a rigid material, for example metal, Plastic or wood, and a lower support 4, which is also made of a rigid material exists, are excited. The slides 2 one Sound damping element 1 thus have a common one upper carrier 3 and a common lower carrier 4th on. The distance of the foils 2 from each other in a horizontal Direction can be by intermediate layers of the carrier 3 and 4th be achieved as shown in the drawing. For safety reasons, the lower carrier 4 is with the upper carrier 3 of each sound absorbing element 1 by a tensile securing member 5, for example by means of wire ropes arranged at intervals connected.

Das Beispiel in der Figur 1 zeigt die hängende Befestigung mehrerer Schalldämmelemente 1 in unmittelbarer Nachbarschaft zueinander und in schürzenartiger Anordnung. Der obere Träger 3 jedes Schalldämpfungselementes 1 ist mittels U-förmiger Tragbügel 6 an Hängeseilen 7, Ketten oder Laschen befestigt. Die Figur 2 veranschaulicht die starre Befestigung eines Schalldämpfungselementes 1 an einer Wand, einem Deckenvorsprung oder an einem anderen festen Bauteil innerhalb eines Gebäuderaumes, zum Beispiel mittels abgeknickter Befestigungsschellen 8, welche mit der Gebäudewand 9 oder dergleichen verschraubt sind.The example in Figure 1 shows the hanging Attachment of several soundproofing elements 1 in immediate neighborhood to each other and in apron-like arrangement. The top beam 3 each Soundproofing element 1 is U-shaped Support bracket 6 on hanging ropes 7, chains or brackets attached. Figure 2 illustrates the rigid Attachment of a soundproofing element 1 to a Wall, a ledge or other fixed Component within a building room, for example by means of angled fastening clamps 8, which with the building wall 9 or the like are screwed.

Die Figur 4 veranschaulicht schematisch die Anordnung von Wickelrollen 10 innerhalb des oberen Trägers 3, wobei jede mikroperforierte Folie 2 mit ihrem oberen Ende auf eine solche Wickelrolle 10 aufläuft, so daß die herabhängende und somit wirksame Folienlänge verändert werden kann, wie es zuvor bereits erläutert wurde. Gegebenenfalls kann auch das zugfeste Sicherungsglied 5 mit einer entsprechenden Aufwickelvorrichtung kombiniert sein.Figure 4 schematically illustrates the arrangement of Winding rolls 10 within the upper carrier 3, wherein each micro-perforated film 2 with its upper end such a winding roll 10 runs so that the depending and thus effective film length changed can be, as previously explained. If necessary, the tensile securing member 5 combined with a corresponding rewinder his.

Die Folien 2 weisen bei allen Ausführungsbeispielen eine Dicke bis zu (kleiner/gleich) 1 mm auf. Die Microperforation ist durch Löcher mit einem Durchmesser von 0,1 bis 0,4 mm gebildet. Der freie Querschnitt, also die Summe aller Lochquerschnitte, beträgt 0,7 bis 1,5 %. Dabei gilt, daß mit steigender Foliendicke auch der Lochdurchmesser steigen kann. Je kleiner also die Foliendicke ist, desto kleiner sollte auch der Lochdurchmesser gewählt werden, um gute Absorptionsergebnisse zu erzielen. Die oben genannte Obergrenze für den Lochdurchmesser von 0,4 mm gilt demnach für Folien mit einer Dicke von nahezu 1 mm. Der freie Querschnitt kann unabhängig von der Foliendicke gewählt werden.The foils 2 have one in all exemplary embodiments Thickness up to (less than or equal to) 1 mm. The Microperforation is through holes with a diameter formed from 0.1 to 0.4 mm. The free cross section, so the sum of all hole cross sections is 0.7 to 1.5%. It applies that with increasing film thickness also Hole diameter may increase. So the smaller the Film thickness, the smaller it should be Hole diameters can be chosen to be good To achieve absorption results. The above The upper limit for the hole diameter of 0.4 mm applies therefore for foils with a thickness of almost 1 mm. The free cross section can be independent of the film thickness to get voted.

Einen konkreten Anwendungsfall zeigt Fig. 5. Zwei Lagen von microperforierten Folien 2.1 und 2.2 sind vor einer schallharten Wand 9 oder einem Fenster angeordnet. Der Abstand der ersten Folienlage 2.1 zur Wand 9 bzw. dem Fenster beträgt 100 mm. Der Abstand der beiden Folienlagen 2.1 und 2.2 zueinander beträgt 30 mm.Fig. 5 shows a specific application. Two layers of microperforated foils 2.1 and 2.2 are in front of one hard wall 9 or a window arranged. The Distance of the first film layer 2.1 to the wall 9 or the Window is 100 mm. The distance between the two Foil layers 2.1 and 2.2 to each other is 30 mm.

Für die Folien selbst wurden unterschiedliche Ausgestaltungen getestet, ohne daß nennenswerte Unterschiede in der Schallabsorptionkurve festgestellt werden konnten. Getestet wurden Polyesterfolien und Polycarbonatfolien mit einer Dicke von 0,1 mm und Polyehtylenfolien mit einer Dicke von 0,2 mm. Bei den Versuchen hat sich ferner gezeigt, daß das Folienmaterial ohne meßbaren Einfluß auf die Schallabsorption ist. Auch ist die Spannung der Folie 2 ohne Einfluß auf die Absorption. Die Folien 2 können straff gespannt sein oder lose hängen bzw. flexibel bleiben.For the foils themselves there were different ones Refinements tested without any significant Differences in the sound absorption curve found could become. Polyester films and Polycarbonate films with a thickness of 0.1 mm and Polyethylene films with a thickness of 0.2 mm. Both Experiments have also shown that the film material has no measurable influence on sound absorption. Also is the tension of the film 2 without influence on the Absorption. The films 2 can be stretched tight hang loose or stay flexible.

Die in Fig. 6 wiedergegebene Absorptionskurve beruht auf einem Test mit der in Fig. 5 gezeigten Anordung. Die Folien 2.1, 2.2 wiesen bei diesem Test eine Dicke von 0,105 mm auf. Der Lochdurchmesser für die Microperforation betrug 0,21 mm bei einem Lochabstand von 0,2 mm, entsprechend einem freien Querschnitt von 1 %. Auf der Abszisse ist die Schallfrequenz (in logarithmischem Maßstab) und auf der Ordinate der Absorptionsgrad aufgetragen. The absorption curve shown in FIG. 6 is based on a test with the arrangement shown in Fig. 5. The Foils 2.1, 2.2 had a thickness of 0.105 mm. The hole diameter for the Microperforation was 0.21 mm with a hole spacing of 0.2 mm, corresponding to a free cross section of 1%. The sound frequency (in logarithmic scale) and on the ordinate of Degree of absorption applied.

Bezugszeichenliste:Reference symbol list:

11
SchalldämpfungselementSoundproofing element
22nd
Kunststoffolie mit MikroperforationPlastic film with micro perforation
33rd
Trägercarrier
44th
Trägercarrier
55
SicherungsgliedSafety link
66
BefestigungsbügelMounting bracket
77
HängeseilHanging rope
88th
BefestigungsschelleMounting clamp
99
GebäudewandBuilding wall
1010th
WickelrolleWinding roll

Claims (8)

  1. Apparatus for minimizing sound levels in buildings with sound proofing elements (1) made out of several sheets (2) arranged in an assembly at intervals from each other and parallel to each other , having micro perforations, characterized in that the perforated sheets (2) are arranged in an assembly at intervals from one another between a common upper carrier (3) and_a lower common carrier (4).
  2. Apparatus according to claim 1, characterized in that the sheets (2) have micro perforations with a hole diameter of 0.1 mm to 0.4 mm, in particular 0.2 mm and a free cross-section of 0.7 % to 1.5%, especially 1%.
  3. Apparatus according to claim 1 or 2, characterized in that the upper carrier (3) as well as the lower carrier (4) consist of a flexurally rigid material and that the micro perforated sheets (2) are stretched between the carriers (3,4), and .so are weighted with the loading of the lower carrier (4).
  4. Apparatus according to claim 1 or 2, characterized in that the sheets (2) hang loose or flexibly.
  5. Apparatus according to claim 3 or 4, characterized in that the upper carrier (3) and the lower carrier (4) are connected together by tensile strong securing members (5).
  6. Apparatus according to one of the previous claims, characterized in that several sound proofing elements (1) are fastened skirt-fashion behind one another in an overhead area, preferably to a roof of a room.
  7. Apparatus for the minimizing of sound levels in buildings with a sound proofing element (1) made up of several sheets (2) arranged in assembly at intervals from each other and parallel to each other, having micro perforations, characterized by a winding roller (30) stored in a carrier, on which the micro perforated sheets (2) are windable to a vertical, horizontally, vertically or at an angle.
  8. Apparatus according to claim 7, characterized in that the sheetings (2) have micro perforations with a hole diameter of 0.1 mm to 0.4 mm, in particular 0.2 mm and a free cross-section of 0.7% to 1.5%, especially 1%
EP97111079A 1996-07-03 1997-07-02 Device to reduce sound levels in buildings Expired - Lifetime EP0816583B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19626676 1996-07-03
DE19626676A DE19626676A1 (en) 1996-07-03 1996-07-03 Device for reducing sound levels in buildings

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EP0816583A1 EP0816583A1 (en) 1998-01-07
EP0816583B1 true EP0816583B1 (en) 2001-04-04

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EP (1) EP0816583B1 (en)
AT (1) ATE200330T1 (en)
DE (2) DE19626676A1 (en)
ES (1) ES2157033T3 (en)
GR (1) GR3035886T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11608291B2 (en) 2016-11-04 2023-03-21 Corning Incorporated Micro-perforated panel systems, applications, and methods of making micro-perforated panel systems

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19754107C1 (en) * 1997-12-05 1999-02-25 Fraunhofer Ges Forschung Sound absorber, for suspension from ceiling
DE19810597A1 (en) * 1998-03-11 1999-10-14 Trenomat Gmbh & Co Kg Partition curtain, especially a highly foldable partition curtain for sports halls, event and exhibition halls, industrial halls, halls or the like.
DE19833031C1 (en) * 1998-07-23 2000-02-10 Kaefer Isoliertechnik Roller blind for sound damping over large windows is made from strips joined by seams angled to the horizontal and draped over the window with two or more layers
US6617002B2 (en) * 1998-07-24 2003-09-09 Minnesota Mining And Manufacturing Company Microperforated polymeric film for sound absorption and sound absorber using same
US6977109B1 (en) 1998-07-24 2005-12-20 3M Innovative Properties Company Microperforated polymeric film for sound absorption and sound absorber using same
EP0978600A3 (en) 1998-08-07 2001-01-17 KAEFER Isoliertechnik GmbH & Co. KG Sound insulating device
DE19901607C2 (en) * 1998-08-07 2001-03-08 Kaefer Isoliertechnik Soundproofing agent
DE19837164A1 (en) 1998-08-17 2000-02-24 Deutsche Verpackungsmittel Device for reducing the noise level on traffic routes
US6244378B1 (en) 1998-12-11 2001-06-12 Owens Corning Fiberglas Technology, Inc. Dual sonic character acoustic panel and systems for use thereof
DE10001578A1 (en) 2000-01-15 2001-07-19 Winfried Kneussle Sound barrier for traffic routes
US7059089B1 (en) 2000-03-20 2006-06-13 Newmat, Sa Flexible sheet materials for tensioned structures, a method of making such materials, and tensioned false ceilings comprising such materials
US6598701B1 (en) 2000-06-30 2003-07-29 3M Innovative Properties Company Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
DE10041458C2 (en) * 2000-08-23 2003-01-30 Kaefer Isoliertechnik Device for reducing noise levels and cladding in aircraft, vehicles or ships
WO2002089110A1 (en) * 2001-04-27 2002-11-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Silencer
FR2881765B1 (en) * 2005-02-08 2007-04-13 Brevetix Sarl ACOUSTICALLY ABSORBENT ASSEMBLY
EP2054562B1 (en) * 2006-08-10 2013-02-13 Brevetix Sound-absorbing assembly
EP2311028B1 (en) 2008-04-14 2020-05-13 3M Innovative Properties Company Multilayer sound absorbing sheet and method of absorbing sound
US8371419B2 (en) 2008-04-22 2013-02-12 3M Innovative Properties Company Hybrid sound absorbing sheet
KR101709353B1 (en) 2008-05-22 2017-02-22 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Multilayer sound absorbing structure comprising mesh layer
CN107002403B (en) * 2014-12-05 2021-03-16 艾勒达有限责任公司 Sound absorbing element and system
DE102015201320A1 (en) 2015-01-27 2016-07-28 Ford Global Technologies, Llc Load compartment cover with sound-absorbing properties
US10900222B2 (en) * 2018-02-17 2021-01-26 Kyler Smith Special lightweight, durable mounting system for sound foam panel and quick installation process
USD894429S1 (en) 2018-04-13 2020-08-25 Caimi Brevetti S.P.A. Sound absorbing panel
USD895159S1 (en) 2018-04-13 2020-09-01 Caimi Brevetti S.P.A. Sound absorbing panel
USD895158S1 (en) 2018-04-13 2020-09-01 Caimi Brevetti S.P.A. Sound absorbing panel
US11725385B2 (en) 2018-11-05 2023-08-15 Rockwool A/S Acoustic baffle suspension system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE752801A (en) * 1970-07-01 1970-12-16 Metallurgie Hoboken SOUND AND THERMAL INSULATION PANEL,
IT1062727B (en) * 1976-06-25 1984-11-10 Fonderia Elettrica Alluminio VERTICAL SUSPENDED SLAT STRUCTURE FOR SOUND ABSORBING CEILINGS AND SPEAKERS
DE7726856U1 (en) * 1977-08-30 1978-01-05 Gesellschaft Fuer Akustik Und Laermbekaempfung Mbh, 8000 Muenchen BRACKET FOR ACOUSTIC CEILING
DE4220434A1 (en) * 1992-06-24 1994-01-05 Peter Hoetger Noise protection device for windows and doors - has tightly fitted profile frame on building with side profiles, a lower profile and upper housing
DE4312885A1 (en) * 1993-04-20 1994-10-27 Fraunhofer Ges Forschung Counter-ceiling
DE4315759C1 (en) * 1993-05-11 1994-05-05 Fraunhofer Ges Forschung Sound-absorbent glazing for building - comprises perforated plate with small-diameter holes close together
DE4408782A1 (en) * 1994-03-15 1995-09-21 Fraunhofer Ges Forschung Foil sound absorber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11608291B2 (en) 2016-11-04 2023-03-21 Corning Incorporated Micro-perforated panel systems, applications, and methods of making micro-perforated panel systems

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DE59703273D1 (en) 2001-05-10
DE19626676A1 (en) 1998-01-08
GR3035886T3 (en) 2001-08-31
ATE200330T1 (en) 2001-04-15
EP0816583A1 (en) 1998-01-07
ES2157033T3 (en) 2001-08-01

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