EP1380699B1 - Sound absorbing panel - Google Patents

Sound absorbing panel Download PDF

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Publication number
EP1380699B1
EP1380699B1 EP03014226A EP03014226A EP1380699B1 EP 1380699 B1 EP1380699 B1 EP 1380699B1 EP 03014226 A EP03014226 A EP 03014226A EP 03014226 A EP03014226 A EP 03014226A EP 1380699 B1 EP1380699 B1 EP 1380699B1
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EP
European Patent Office
Prior art keywords
slits
front plate
facing side
plate
opposing
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.)
Expired - Lifetime
Application number
EP03014226A
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German (de)
French (fr)
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EP1380699A2 (en
EP1380699A3 (en
Inventor
Ferdinand Köhl
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Tavapan SA
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Tavapan SA
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Publication of EP1380699A3 publication Critical patent/EP1380699A3/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0867—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having acoustic absorption means on the visible 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
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • 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
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/849—Groove or slot type openings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2203/00—Specially structured or shaped covering, lining or flooring elements not otherwise provided for
    • E04F2203/04—Specially structured or shaped covering, lining or flooring elements not otherwise provided for comprising a plurality of internal elongated cavities arranged in substantially parallel rows

Definitions

  • the present invention relates to a sound-absorbing element which consists of several layers and has recesses in at least one layer according to the preamble of claim 1.
  • Such sound-absorbing elements also referred to as so-called “acoustic panels” are known in many different embodiments in the prior art.
  • Such plates include embodiments with through holes, offset from the visible side, through slots or similar recesses.
  • longitudinally and / or transversely grooved plates are known, wherein the front side of the plate along grooved, the back of the plate against it is cross grooved.
  • acoustic panels are in addition to the general noise insulation u.a. the reduction or complete elimination of reverberation effects of sound, especially in premises with a high sound reflectivity, such as in multi-purpose halls, museums and the like. Special areas of application of these elements can also be found in concert halls, whereby an appropriate design of the visible side of these acoustic panels also additional aesthetic considerations is taken into account.
  • a multi-layered sound-absorbing element which has recesses in at least one layer.
  • parallel slits are provided in an intermediate layer, the sound being introduced into the component via microperforations.
  • One of the reverberation times of the sound-reducing element is for example from the German patent application DE 195 05 025 known.
  • a plate-shaped element is disclosed, the upper side of which is provided with a plurality of parallel in the element extending grooves, whereas the back of the element has a series of holes which are aligned with the respective groove in the front, so that result in corresponding sound openings.
  • the production of such an element in particular the milling of the grooves and the setting of the holes, takes place in many individual steps, which proves to be time consuming and costly.
  • EP 1 109 150 A2 a generic acoustic panel made of a curable molding material with at least two superimposed flocks of rods.
  • the degree of achievable sound absorption depends only on the number of slots per layer, their slot width and their distances from each other and which layers of the element are provided with slots. In their production, therefore, only the milling or planing tool is to be changed or replaced. The process steps as such remain unaffected.
  • a significant advantage of the sound absorbing member according to the present invention resides in the fact that the arrangement of slits in the different slices and their different geometric or size Design a variability is created, which can be used for the design of acoustic problems, depending on the application of the element according to the invention, without causing the production process must be significantly modified and so the efficiency is affected by additional steps. In other words, this means that regardless of the number of slots or the slot width in the front panel or the back plate, the element is always to produce in an efficient manner.
  • the plate-shaped elements thus produced can be tailored according to the arrangement of ceilings and walls afterwards, the fastening side, which is formed by the back plate of the element, with corresponding connection mechanisms, optionally using substructures cooperates.
  • Such an acoustic element is preferably made of wood-based materials.
  • so-called MDF (Medium Density Fiber) boards should be used in the elements according to the present invention.
  • MDF Medium Density Fiber
  • the plates can each be in one piece.
  • the slots of the plates lie, for example, in one Range of 9 to 12 mm, but are preferably based on the desired degree of absorption of each site.
  • the design of the top of the front panel as the visible side of the element are no limits in design.
  • the plates may be provided in particular with a wood veneer.
  • the front panel may be pressed with a HPL (High Pressure Laminate) or melamine resin paper coated thereon.
  • the slots can include not only rectangular cross sections but also other cross-sectional shapes.
  • the single figure shows an element which has a substantially rectangular shape.
  • the element 1 is sandwiched from two congruent layers. It comprises here a front plate 3 and a back plate 4, which is opposite to the front plate 3 for fixing the element 1 to a Wall, ceiling or the like.
  • a surface of the front panel 3 forms the visible side 3s of the element.
  • the front plate 3 is provided on the one hand with first slots 5, which have been introduced from the visible side 3s of the front panel 3 in this by milling or planing.
  • the front panel has slots 6 which are introduced from the side of the front panel 3 opposite the visible side 3s and extend transversely to the slots 5.
  • the slots 5 in the front panel 3 are mounted at a certain distance parallel to each other, also like the slots 6, which extend transversely thereto.
  • the slots 5 and 6 have such a depth that they intersect to form a sound passage opening 8. In these sound passage openings 8 of the sound is collected and reflected back and forth, whereby a sound absorption effect occurs.
  • the back plate 4 has slots 7 which extend to a depth below the thickness of the back plate 4, ie the slots 7 have such a depth that they extend into the front panel 3 in so that they intersect the slots 6 extending transversely to them and thus form sound passage openings 8 at the respective interfaces.
  • the slots 7 and 5 opposite and have substantially the same groove width.
  • sound passage openings 8 which extend over both plate layers and thus enforce the entire thickness of the element 1. As a result, larger spaces are created in which the sound is trappable. If the element 1 is arranged on a substructure of a wall and has a certain distance from it, further absorption spaces are available to the sound waves.
  • the embodiment of the element 1 is characterized by a relatively simple structural design.
  • the slots 6 are first introduced on the side opposite the visible side 3s of the front panel 3 by means of a planing or milling machine in the front panel 3 and then the plates 3,4 glued or pressed together.
  • both the slots 7 of the back plate 4 and the slots 5 of the front panel 3 as well as possible grooves and springs can be made on opposite edges of the element 1 in a single operation.
  • the individual elements 1 can be connected during assembly via not shown tongue and groove connections.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

The sound absorbing plate has a front plate (3) at a distance and parallel to a second slit (5) with a vision side (3s) of an element (1) that forms a back plate (4) and has a slit (6) in the front plate . The slits lie over each other.

Description

Die vorliegende Erfindung betrifft ein schallabsorbierendes Element, das aus mehreren Schichten besteht und zumindest in einer Schicht Ausnehmungen aufweist gemäß dem Oberbegriff von Anspruch 1.The present invention relates to a sound-absorbing element which consists of several layers and has recesses in at least one layer according to the preamble of claim 1.

Derartige schallabsorbierende Elemente, auch als sog. "Akustikplatten" bezeichnet, sind in den unterschiedlichsten Ausführungsformen im Stand der Technik bekannt. Derartige Platten umfassen Ausgestaltungen mit durchgehenden Löchern, von der Sichtseite her abgesetzten, durchgehenden Schlitzen oder ähnlichen Ausnehmungen. Auch sind längs- und/oder quer gerillte Platten bekannt, wobei die Frontseite der Platte längs gerillt, die Rückseite der Platte dahingegen quer gerillt ist.Such sound-absorbing elements, also referred to as so-called "acoustic panels", are known in many different embodiments in the prior art. Such plates include embodiments with through holes, offset from the visible side, through slots or similar recesses. Also longitudinally and / or transversely grooved plates are known, wherein the front side of the plate along grooved, the back of the plate against it is cross grooved.

Ziel derartiger Akustikplatten ist neben der allgemeinen Geräuschdämmung u.a. die Verminderung oder vollständige Eliminierung von Nachhalleffekten des Schalls vor allem in Räumlichkeiten mit einem hohen Schallreflexionsvermögen, wie beispielsweise in Mehrzweckhallen, Museen und dergleichen. Besondere Einsatzgebiete dieser Elemente finden sich auch in Konzertsälen, wobei über eine entsprechende Ausgestaltung der Sichtseite dieser Akustikplatten auch zusätzlich ästhetischen Gesichtspunkten Rechnung getragen wird.The aim of such acoustic panels is in addition to the general noise insulation u.a. the reduction or complete elimination of reverberation effects of sound, especially in premises with a high sound reflectivity, such as in multi-purpose halls, museums and the like. Special areas of application of these elements can also be found in concert halls, whereby an appropriate design of the visible side of these acoustic panels also additional aesthetic considerations is taken into account.

Beispielsweise ist aus DE 299 11 495 U1 ein mehrschichtiges schallabsorbierendes Element bekannt, das Ausnehmungen in zumindest einer Schicht aufweist. Bei dem hieraus bekannten dreischichtigen Aufbau sind in einer Zwischenschicht parallel verlaufende Schlitze vorgesehen, wobei der Schall über Mikroperforationen in das Bauteil eingeleitet wird.For example, it is off DE 299 11 495 U1 a multi-layered sound-absorbing element is known which has recesses in at least one layer. In the three-layer structure known therefrom, parallel slits are provided in an intermediate layer, the sound being introduced into the component via microperforations.

Weitere schallabsorbierende Bauteile sind aus DE-OS 19 10 318 und DE 18 28 831 U1 bekannt.Other sound-absorbing components are made DE-OS 19 10 318 and DE 18 28 831 U1 known.

Ein die Nachhallzeiten des Schalls verringerndes Element ist beispielsweise aus der deutschen Offenlegungsschrift DE 195 05 025 bekannt. In dieser ist ein plattenförmiges Element offenbart, dessen Oberseite mit einer Vielzahl von sich parallel in das Element hinein erstreckenden Nuten versehen ist, wohingegen die Rückseite des Elements eine Reihe von Bohrungen aufweist, die auf die jeweilige Nut in der Frontseite ausgerichtet sind, so dass sich entsprechende Schalldurchtrittsöffnungen ergeben. Die Herstellung eines derartigen Elements, insbesondere das Fräsen der Nuten und das Setzen der Bohrungen, erfolgt in vielen einzelnen Arbeitsschritten, was sich als zeit- und kostenintensiv erweist.One of the reverberation times of the sound-reducing element is for example from the German patent application DE 195 05 025 known. In this a plate-shaped element is disclosed, the upper side of which is provided with a plurality of parallel in the element extending grooves, whereas the back of the element has a series of holes which are aligned with the respective groove in the front, so that result in corresponding sound openings. The production of such an element, in particular the milling of the grooves and the setting of the holes, takes place in many individual steps, which proves to be time consuming and costly.

Weiterhin ist aus der EP 0 745 738 B1 bekannt, einen Dreischicht-Massivholz-Aufbau zu verwenden, wobei die Faserrichtung der Deckschichten vorgegeben ist, und wobei mindestens eine Deckschicht Nuten aufweist, die in Kontakt mit quer dazu verlaufenden Nuten der darunter liegenden Mittelschicht stehen.Furthermore, from the EP 0 745 738 B1 known to use a three-layer solid wood structure, wherein the fiber direction of the cover layers is predetermined, and wherein at least one cover layer has grooves, which are in contact with transversely extending grooves of the underlying middle layer.

Schließlich zeigt EP 1 109 150 A2 eine gattungsgemäße Akustikplatte aus einem aushärtbaren Formstoff mit mindestens zwei übereinander liegenden Scharen von Stäben.Finally shows EP 1 109 150 A2 a generic acoustic panel made of a curable molding material with at least two superimposed flocks of rods.

Ausgehend von diesem Stand der Technik ist es die Aufgabe der vorliegenden Erfindung, ein alternatives schallabsorbierendes Element zu schaffen, das sich wirtschaftlich in wenigen effizienten Arbeitsschritten herstellen lässt und das zugleich individuell durch einfache Maßnahmen bei seiner Herstellung an die Anforderungen der zu erzielenden Schallabsorption angepasst werden kann.Based on this prior art, it is the task the present invention to provide an alternative sound-absorbing element that can be economically produced in a few efficient steps and that can be adjusted individually by simple measures during its manufacture to the requirements of the sound absorption to be achieved.

Gelöst werden diese Aufgaben durch die Merkmale des Anspruches 1. Weitere vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.These objects are achieved by the features of claim 1. Further advantageous embodiments of the invention are the subject of the dependent claims.

Gemäß der vorliegenden Erfindung ist der Grad der erzielbaren Schallabsorption lediglich abhängig von der Anzahl der Schlitze pro Schicht, deren Schlitzbreite sowie deren Abstände zueinander und davon, welche Schichten des Elements mit Schlitzen versehen sind. Bei deren Fertigung ist daher lediglich das Fräs- oder Hobelwerkzeug umzustellen bzw. auszutauschen. Die Verfahrensschritte als solche bleiben unberührt.According to the present invention, the degree of achievable sound absorption depends only on the number of slots per layer, their slot width and their distances from each other and which layers of the element are provided with slots. In their production, therefore, only the milling or planing tool is to be changed or replaced. The process steps as such remain unaffected.

Somit beruht ein wesentlicher Vorteil des schallabsorbierenden Elements gemäß der vorliegenden Erfindung auf der Tatsache, dass durch die Anordnung von Schlitzen in den unterschiedlichen Schichten und durch deren unterschiedliche geometrische bzw. größenmäßige Ausgestaltung eine Variabilität geschaffen wird, die zur Auslegung akustischer Probleme, je nach Einsatzgebiet des erfindungsgemäßen Elements, herangezogen werden kann, ohne dass dabei das Herstellungsverfahren wesentlich abgeändert werden muss und so die Wirtschaftlichkeit durch zusätzliche Arbeitsschritte beeinträchtigt wird. Mit anderen Worten bedeutet dies, dass unabhängig von der Schlitzanzahl bzw. der Schlitzbreite in der Frontplatte oder der Rückplatte das Element stets in effizienter Weise zu fertigen ist.Thus, a significant advantage of the sound absorbing member according to the present invention resides in the fact that the arrangement of slits in the different slices and their different geometric or size Design a variability is created, which can be used for the design of acoustic problems, depending on the application of the element according to the invention, without causing the production process must be significantly modified and so the efficiency is affected by additional steps. In other words, this means that regardless of the number of slots or the slot width in the front panel or the back plate, the element is always to produce in an efficient manner.

Die so gefertigten plattenförmigen Elemente können zur Anordnung an Decken und Wänden im Nachhinein entsprechend zugeschnitten werden, wobei die Befestigungsseite, die durch die Rückplatte des Elements gebildet wird, mit entsprechenden Verbindungsmechanismen, gegebenenfalls unter Verwendung von Unterkonstruktionen, zusammenwirkt.The plate-shaped elements thus produced can be tailored according to the arrangement of ceilings and walls afterwards, the fastening side, which is formed by the back plate of the element, with corresponding connection mechanisms, optionally using substructures cooperates.

Ein derartiges Akustikelement wird vorzugsweise aus Holzwerkstoffen angefertigt. Insbesondere sollen bei den Elementen gemäß der vorliegenden Erfindung sog. MDF (Medium Density Fiber) - Platten zum Einsatz kommen. Zur Vermeidung einer Brandgefahr sind auch die Verwendung von Zement- oder Gipskomponenten als Plattenmaterial denkbar. Die Platten können dabei jeweils einstückig sein.Such an acoustic element is preferably made of wood-based materials. In particular, so-called MDF (Medium Density Fiber) boards should be used in the elements according to the present invention. To avoid a risk of fire, the use of cement or gypsum components as a plate material are conceivable. The plates can each be in one piece.

Die Schlitze der Platten liegen beispielsweise in einem Bereich von 9 bis 12 mm, richten sich vorzugsweise jedoch nach den gewünschten Absorptionsgrad des jeweiligen Einsatzortes. Der Gestaltung der Oberseite der Frontplatte als Sichtseite des Elements sind gestalterisch keine Grenzen gesetzt. So können die Platten insbesondere mit einem Holzfurnier versehen sein. Weiterhin kann die Frontplatte mit einer auf dieser angeordneten HPL (High Pressure Laminate)- oder mit Melaminharzpapier beschichtete Schicht verpresst sein. Die Schlitze können dabei neben rechteckigen Querschnitten auch andere Querschnittformen umfassen.The slots of the plates lie, for example, in one Range of 9 to 12 mm, but are preferably based on the desired degree of absorption of each site. The design of the top of the front panel as the visible side of the element are no limits in design. Thus, the plates may be provided in particular with a wood veneer. Furthermore, the front panel may be pressed with a HPL (High Pressure Laminate) or melamine resin paper coated thereon. The slots can include not only rectangular cross sections but also other cross-sectional shapes.

Vorteile und weitere Merkmale des Elements gemäß der vorliegenden Erfindung ergeben sich aus den in der beiliegenden Zeichnung dargestellten Ausführungsbeispielen und deren Beschreibung. Die in der Zeichnung dargestellten und in den Ansprüchen sowie in der Beschreibung erwähnten Merkmale sind jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich.Advantages and other features of the element according to the present invention will become apparent from the embodiments illustrated in the accompanying drawings and the description thereof. The features shown in the drawing and mentioned in the claims and in the description are individually essential to the invention individually or in any combination.

Die einzige Figur zeigt ein Element, das im Wesentlichen eine rechteckförmige Form aufweist. Das Element 1 ist sandwichartig aus zwei deckungsgleichen Schichten zusammengesetzt. Es umfasst hierbei eine Frontplatte 3 sowie eine Rückplatte 4, die der Frontplatte 3 gegenüberliegt zur Befestigung des Elements 1 an einer Wand, Decke oder dergleichen. Eine Oberfläche der Frontplatte 3 bildet dabei die Sichtseite 3s des Elements 1.The single figure shows an element which has a substantially rectangular shape. The element 1 is sandwiched from two congruent layers. It comprises here a front plate 3 and a back plate 4, which is opposite to the front plate 3 for fixing the element 1 to a Wall, ceiling or the like. A surface of the front panel 3 forms the visible side 3s of the element. 1

Im vorliegenden Ausführungsbeispiel ist die Frontplatte 3 zum einen mit ersten Schlitzen 5 versehen, die ausgehend von der Sichtseite 3s der Frontplatte 3 in diese durch Fräsen oder Hobeln eingebracht worden sind.In the present embodiment, the front plate 3 is provided on the one hand with first slots 5, which have been introduced from the visible side 3s of the front panel 3 in this by milling or planing.

Des Weiteren weist die Frontplatte Schlitze 6 auf, die von der der Sichtseite 3s gegenüberliegenden Seite der Frontplatte 3 in diese eingebracht sind und die quer zu den Schlitzen 5 verlaufen. Die Schlitze 5 in der Frontplatte 3 sind dabei in einem bestimmten Abstand parallel zueinander angebracht, ebenfalls wie die Schlitze 6, die quer hierzu verlaufen. Die Schlitze 5 bzw. 6 weisen dabei eine solche Tiefe auf, dass sie sich unter Ausbildung einer Schalldurchtrittsöffnung 8 schneiden. In diesen Schalldurchtrittsöffnungen 8 wird der Schall aufgefangen und hin und her reflektiert, wodurch eine Schallabsorptionswirkung auftritt.Furthermore, the front panel has slots 6 which are introduced from the side of the front panel 3 opposite the visible side 3s and extend transversely to the slots 5. The slots 5 in the front panel 3 are mounted at a certain distance parallel to each other, also like the slots 6, which extend transversely thereto. The slots 5 and 6 have such a depth that they intersect to form a sound passage opening 8. In these sound passage openings 8 of the sound is collected and reflected back and forth, whereby a sound absorption effect occurs.

Im hier gezeigten Ausführungsbeispiel weist darüber hinaus auch die Rückplatte 4 Schlitze 7 auf, die sich bis zu einer Tiefe unterhalb der Dicke der Rückplatte 4 erstrecken, d. h. die Schlitze 7 weisen eine solche Tiefe auf, dass sie sich in die Frontplatte 3 hinein erstrecken, so dass sie die quer zu ihnen verlaufenden Schlitze 6 schneiden und so Schalldurchtrittsöffnungen 8 an den jeweiligen Schnittstellen ausbilden. Hierbei liegen sich in diesem Ausführungsbeispiel die Schlitze 7 und 5 gegenüber und weisen im Wesentlichen die gleiche Nutbreite auf. Es werden somit Schalldurchtrittsöffnungen 8 geschaffen, die sich über beide Plattenschichten erstrecken und so die gesamte Dicke des Elements 1 durchsetzen. Hierdurch werden größere Räume geschaffen, in denen der Schall auffangbar ist. Ist das Element 1 auf einer Unterkonstruktion einer Wand angeordnet und weist zu dieser einen gewissen Abstand auf, stehen den Schallwellen weitere Absorptionsräume zur Verfügung.In the embodiment shown here, moreover, the back plate 4 has slots 7 which extend to a depth below the thickness of the back plate 4, ie the slots 7 have such a depth that they extend into the front panel 3 in so that they intersect the slots 6 extending transversely to them and thus form sound passage openings 8 at the respective interfaces. Here are in this embodiment, the slots 7 and 5 opposite and have substantially the same groove width. There are thus provided sound passage openings 8 which extend over both plate layers and thus enforce the entire thickness of the element 1. As a result, larger spaces are created in which the sound is trappable. If the element 1 is arranged on a substructure of a wall and has a certain distance from it, further absorption spaces are available to the sound waves.

Die Ausführungsform des Elements 1 zeichnet sich durch eine relativ einfache konstruktive Gestaltung aus. Dabei werden zunächst die Schlitze 6 an der der Sichtseite 3s gegenüberliegenden Seite der Frontplatte 3 mittels einer Hobel- oder Fräsmaschine in die Frontplatte 3 eingebracht und sodann die Platten 3,4 miteinander verklebt bzw. verpresst. Durch entsprechende Werkzeuggestaltung können dann sowohl die Schlitze 7 der Rückplatte 4 und die Schlitze 5 der Frontplatte 3 als auch mögliche Nuten und Federn auf einander gegenüberliegenden Kantseiten des Elementes 1 in einem einzigen Arbeitsgang gefertigt werden.The embodiment of the element 1 is characterized by a relatively simple structural design. In this case, the slots 6 are first introduced on the side opposite the visible side 3s of the front panel 3 by means of a planing or milling machine in the front panel 3 and then the plates 3,4 glued or pressed together. By appropriate tool design then both the slots 7 of the back plate 4 and the slots 5 of the front panel 3 as well as possible grooves and springs can be made on opposite edges of the element 1 in a single operation.

Die einzelnen Elemente 1 können bei der Montage über nichtdargestellte Nut-Feder-Verbindungen verbunden werden.The individual elements 1 can be connected during assembly via not shown tongue and groove connections.

Claims (6)

  1. Multiple-layered sound absorbing element having recesses in at least one layer and having a two-layered construction comprising a front plate (3) which has slits (5) extending parallel to one another at a particular spacing on its side forming a facing side (3s) of the element (1) and a rear plate (4) forming the fastening side of the element (1), wherein the front plate (3) has slits (6) extending parallel to one another at a particular spacing on its side opposing the facing side (3s) and substantially perpendicularly to the slits (5) of the facing side (3s) of the front plate (3), and wherein the slits (6) of the side opposing the facing side (3s) and the slits (5) of the facing side (3s) of the front plate (3) intersect forming sound passage openings (8) and slits (7) are provided in the rear plate (4) which extend parallel to one another at a particular spacing and substantially perpendicularly to the slits (6) of the side of the front plate opposing the facing side (3s), characterised in that the slits (7) of the rear plate (4) extend from its surface to a depth beneath its thickness into the front plate (3), so that the slits (7) of the rear plate (4) and the slits (6) of the side of the front plate (3) opposing the facing side (3s) intersect, forming a sound passage opening (8).
  2. Element according to claim 1, characterised by slits (5) of the facing side (3s) in the front plate (3) and slits (7) in the rear plate (4) which oppose one another in coincident manner.
  3. Element according to claim 2, characterised by slits (5) in the facing side (3s) in the front plate (3) and slits (7) in the rear plate (4) which oppose one another, wherein the width of the slits (7) of the rear plate (4) is greater than the width of the slits (5) of the facing side (3s) of the front plate (3).
  4. Element according to one of the claims 1 to 3, characterised by a width of the slits (5) of the facing side (3s) of the front plate (3) which corresponds at least to the width of the slits (6) of the side of the front plate (3) opposing the facing side (3s).
  5. Element according to one of the preceding claims, characterised in that the width of the slits (5) of the facing side (3s) of the front plate (3) and/or of the slits (6) of the side of the front plate (3) opposing the facing side (3s) and/or of the slits (7) of the rear plate (4) and the spacing between the respective slits (5, 6, 7) are dimensioned depending on the degree of sound absorption to be achieved.
  6. Element according to one of the preceding claims, characterised by a groove on at least one edge side of the element (1) and a groove of complementary design on the respective opposing edge side of the element (1).
EP03014226A 2002-07-10 2003-06-25 Sound absorbing panel Expired - Lifetime EP1380699B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20211388U 2002-07-10
DE20211388U DE20211388U1 (en) 2002-07-10 2002-07-10 Sound absorbing panel

Publications (3)

Publication Number Publication Date
EP1380699A2 EP1380699A2 (en) 2004-01-14
EP1380699A3 EP1380699A3 (en) 2004-11-17
EP1380699B1 true EP1380699B1 (en) 2007-09-12

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ID=29594708

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Application Number Title Priority Date Filing Date
EP03014226A Expired - Lifetime EP1380699B1 (en) 2002-07-10 2003-06-25 Sound absorbing panel

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EP (1) EP1380699B1 (en)
AT (1) ATE373149T1 (en)
DE (2) DE20211388U1 (en)
ES (1) ES2290386T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2279722B1 (en) * 2006-02-03 2008-09-01 Ceramica Saloni, S.A. PROCESS OF MANUFACTURE OF CERAMIC PARTS WITH ACOUSTIC PROPERTIES AND OBTAINED PIECE.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150500A2 (en) * 1984-01-17 1985-08-07 Karl Danzer KG Acoustical panel of agglomerated wood particles provided with tubular cavities
EP1109150A2 (en) * 1999-12-17 2001-06-20 ISOLITH Leichtbauplattenwerk M. Hattinger Gesellschaft mbH Acoustic panel

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Publication number Priority date Publication date Assignee Title
FR1015972A (en) * 1950-04-05 1952-10-29 Device and industrial products for absorbing sound
DE1753790U (en) * 1957-06-07 1957-10-10 Marianne Hoch WOODEN ACOUSTIC PANEL.
DE1828831U (en) 1957-10-29 1961-03-30 Ontwikkelingmaatschppij Multin SOUND AND HEAT-ABSORBING LAYERED BODY.
DE1780377U (en) * 1958-10-18 1958-12-31 Gipswerk Spaeth & Soehne G M B SOUND-SOUND DISK.
US3498404A (en) 1968-02-29 1970-03-03 United States Gypsum Co Fire resistant porous acoustic board with perforations through metal facing sheet
US5422446A (en) 1991-03-20 1995-06-06 Fries; Arthur Panel shaped element, specifically for sound absorbing structures and a sound absorbing installation
DE4207752A1 (en) * 1992-03-12 1993-09-16 Holzbau Amann Gmbh WOODEN PANEL
AT405069B (en) * 1995-06-02 1999-05-25 Wiesner Hager Baugruppe Gmbh ACOUSTIC PANEL AND METHOD FOR PRODUCING THE SAME
DE29911495U1 (en) 1998-10-06 1999-09-02 Lignoform Benken Ag, Benken Sound absorbing plate for interior design
DE10011798A1 (en) * 2000-03-14 2001-09-27 Tavapan Sa Tavannes Sound absorbing panel has a sandwich structure comprising a middle plate which is provided with regularly spaced parallel slits whose depth is almost equal to the thickness of this plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150500A2 (en) * 1984-01-17 1985-08-07 Karl Danzer KG Acoustical panel of agglomerated wood particles provided with tubular cavities
EP1109150A2 (en) * 1999-12-17 2001-06-20 ISOLITH Leichtbauplattenwerk M. Hattinger Gesellschaft mbH Acoustic panel

Also Published As

Publication number Publication date
ES2290386T3 (en) 2008-02-16
ATE373149T1 (en) 2007-09-15
EP1380699A2 (en) 2004-01-14
DE50308152D1 (en) 2007-10-25
DE20211388U1 (en) 2003-11-20
EP1380699A3 (en) 2004-11-17

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