EP1630311B1 - Sound absorbing device, specially for mounting on a ceiling or wall - Google Patents

Sound absorbing device, specially for mounting on a ceiling or wall Download PDF

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Publication number
EP1630311B1
EP1630311B1 EP05018336A EP05018336A EP1630311B1 EP 1630311 B1 EP1630311 B1 EP 1630311B1 EP 05018336 A EP05018336 A EP 05018336A EP 05018336 A EP05018336 A EP 05018336A EP 1630311 B1 EP1630311 B1 EP 1630311B1
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EP
European Patent Office
Prior art keywords
frame
sound
absorbing means
frame part
absorbing
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EP05018336A
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German (de)
French (fr)
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EP1630311A2 (en
EP1630311A3 (en
Inventor
Sabine Keggenhoff
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Individual
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Priority claimed from DE202004013360U external-priority patent/DE202004013360U1/en
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Publication of EP1630311A3 publication Critical patent/EP1630311A3/en
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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
    • 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
    • E04B1/99—Room acoustics, i.e. forms of, or arrangements in, rooms for influencing or directing sound
    • 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
    • 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 sound-absorbing device, in particular for mounting on a ceiling or wall.
  • Such a sound-absorbing device is for example from the document DE 198 39 973 A1 known.
  • the document describes a sound absorbing device comprising a sound absorbing means coated with a fabric.
  • the device thus produced can then be fixed to a ceiling.
  • a variety of such devices then causes the sound absorption in the room.
  • the sound-absorbing means provided in the sound-absorbing device is tuned to specific frequency ranges or a certain frequency range. Sound with frequencies from these frequency ranges is absorbed by the sound absorbing device. This allows you to achieve a high speech intelligibility in the room with an optimal balance of the reverberation time course.
  • a disadvantage of the device described in the document is that a subsequent adaptation of the sound-absorbing devices mounted in the room is not or only with great difficulty possible.
  • a subsequent change may be desired for various reasons. For example, a subsequent change may be desired if the acoustic behavior of the room changes as a result of the introduction of furniture, carpets, curtains or the like. By introducing such things into the room, it may be necessary to dampen certain frequencies more than in a room in the original state (inventory / actual situation). In addition, it may be necessary to adjust the acoustic behavior according to the use of the room. If the use of the room changes, it can be necessary to adapt the acoustic behavior to the changed use.
  • the sound-absorbing devices In order to obtain subsequent changes in the acoustic behavior of a room equipped with the sound-absorbing devices known from the prior art, the sound-absorbing devices must be completely replaced. This is complicated and expensive, since the sound-absorbing devices are usually disposed of after their dismantling.
  • the document CA 2 226 601 A1 discloses a sound absorbing device having the features of the preamble of claim 1.
  • the invention has for its object to provide sound-absorbing devices that can be flexibly adapted to the desired acoustic behavior of a room.
  • a sound-absorbing device which is particularly suitable for mounting on a ceiling or wall, has a first frame, a second frame, at least a first sound-absorbing means and a covering.
  • the first sound absorbing means is detachably connected to the first frame and thereby exchangeable.
  • the second frame is covered with the fabric.
  • the second frame with the cover is slipped over the first frame with the first sound-absorbing means in the manner of a hood and releasably connected to the first frame.
  • the thus formed sound-absorbing device can be changed in their frequency response by simple means.
  • the second frame with the covering is released from the first frame, then the first sound-absorbing means separated from the first frame and against another Sound-absorbing agent with a different frequency response replaced. Subsequently, the second frame with the covering is slipped over the first frame with the first sound-absorbing means again. During the replacement of the sound absorbing means, the first frame remains at least partially fixed to the ceiling or the wall.
  • the first frame is designed in two parts.
  • the two-part frame may then comprise a first frame part which can be mounted on the ceiling or the wall or the like and which remains mounted on the ceiling when replacing the sound-absorbing means.
  • This first frame part may have a clear cross-sectional area which is equal to or greater than the cross-sectional area of the first sound-absorbing means. Then it is possible for the first sound-absorbing means to be enclosed by the first frame part.
  • the first frame can also comprise a second frame part in addition to the first frame part.
  • This second frame part may be attached to the first frame part of the first frame.
  • the second frame part advantageously has a clear cross-sectional area which is smaller than the cross-sectional area of the first sound-absorbing means, at least in one section, in particular so that the first sound-absorbing means can be held by means of the second frame part.
  • the clear cross-sectional area may be equal to or greater than the cross-sectional area of the first sound-absorbing means.
  • the second frame part may be suitable for fastening the first sound-absorbing means.
  • the first sound absorbing means may, for example, be between the second Frame part and the ceiling, the wall or the like may be clamped after assembly.
  • a device according to the invention may further comprise a third frame.
  • This third frame may be releasably attached to the first frame.
  • the device according to the invention may comprise a second sound-absorbing means.
  • This can be fixed in the device by means of the third frame.
  • the third frame can have, at least in one section, a clear cross-sectional area which is smaller than the cross-sectional area of the sound-absorbing means. At least with sections, the third frame may enclose the second sound absorbing means.
  • the second sound absorbing means may be advantageously clamped between the third frame and the first sound absorbing means after assembly.
  • a distance may remain between the first or, if appropriate, the second sound-absorbing means and the covering drawn over the second frame, which spacing may be particularly advantageous for the acoustic behavior of the sound-absorbing device.
  • the device comprises a first frame 9, 13.
  • the first frame is designed in two parts and has a first frame part 9 and a second frame part 13.
  • the first frame part 9 is fragmentary in different views in the Fig. 6a to 6c shown as a single part.
  • the second frame part is in different views partly in the Fig. 7a to 7c shown.
  • Both frame parts 9, 13 are made of a profile, preferably an extruded profile, in which sections of the profile are sawn miter and thus at right angles juxtaposed give an overall rectangular frame. In principle, all forms are possible (different from the illustrated embodiment) (rectangular, angular, round, freeform etc.)
  • the four sections of each frame part 9, 13 are screwed together with angles 9a and 13a and screws 9b and 13b.
  • the first frame part 9 of the first frame 9, 13 is screwed to the ceiling 1 with screws 5.
  • This first frame part 9 has a clear cross-sectional area which is slightly larger than the cross-sectional area of a first sound-absorbing means 17. As a result, a distance remains between the sound-absorbing means 17, which is substantially cuboid-shaped, and the first frame part 9.
  • a Compri band 10 is inserted between the first frame part 9 and the ceiling 1, which creates the airtight assembly between 9 and 1.
  • the sound-absorbing means 17 can basically be configured as desired.
  • First sound-absorbing means may comprise an acoustically effective filling, for example of mineral wool, preferably airtight packed in PE film. This acoustically effective filling can rest on a sheet metal insert, the strength of which can be determined according to acoustic requirements. Acoustic filling and sheet metal can form a plate resonator.
  • the second frame part 13 has a clear cross-sectional area that is smaller than the cross-sectional area of the first sound-absorbing means 17. With a portion, the second frame part 13 is further configured to surround the first sound-absorbing means 17 with this section. With a projecting portion 14, the second frame part 13 hangs on the first frame part 9. About screws 12 and with the interposition of a presentation tape 11 with a thickness of 3 mm, the first frame part 9 and the second frame part 13 are screwed together.
  • the second frame part engages behind with the interposition of a first Butylbandes 15 and a second Butylbandes 16, the first sound-absorbing means 17 and presses this against the ceiling 1, so that the first sound-absorbing means 17 between the ceiling 1 and the second frame part 13 of the first frame 9, 13 is clamped.
  • a device has, in addition to the first frame 9, 10, a second frame 2. Also this second frame is like in the Fig. 8a to 8c shown manufactured from profile sections which are mitred and are screwed together with the aid of angles 2a and screws 2b to form a rectangular frame.
  • the frame has recesses 6, 7, which serve to fasten a fabric 4, 4a, 4b.
  • the second frame 2 has a projecting portion 8. This projecting portion 8 is provided with holes, or with recesses, via which the second frame 2 is attached to the outside of the first frame part 9 of the first frame 9, 13.
  • the second frame 2 is mounted on the screws 3a, which are screwed to the first frame part 9 of the first frame 9, 13, mounted. By means of the screws 3b, the position of the second frame 2 is fixed to the first frame part 9. This allows at any time easy assembly and disassembly of the second frame. 2
  • the edges of the covering parts 4a, 4b are clamped in the recesses 6 and 7 respectively.
  • the first of the covering parts, the covering part 4a is otherwise designed as an elongate material web, which is beaten once around the circumference of the second frame 2 and is clamped both in the recess 6 and in the recess 7 and in the region of Corner of the second frame 2 is sewn.
  • the second covering part 4b has a substantially square or rectangular construction and is clamped by the edges in the recess 7 of the second frame 2.
  • the aforementioned features have all three embodiments according to the Fig. 3 to 5 on.
  • the embodiment according to the Fig. 4 differs only in that only a Butylband 15 is provided to decouple the sound absorbing means 17 of the second frame part 13 of the first frame 9, 13.
  • the second Butylband 16 which in the embodiment according to the Fig. 3 is provided, omitted in the embodiment according to Fig. 4 .
  • Another difference between the embodiment according to Fig. 3 and the embodiment according to Fig. 4 is that the sound absorbing means 17 in the embodiment according to Fig. 3 is designed so that medium and high frequencies are absorbed.
  • the sound absorbing means 17 in the embodiment according to the Fig. 4 configured to absorb low and high frequencies in particular.
  • the embodiment according to the Fig. 5 corresponds to the embodiment according to the already written features Fig. 4 , however, there are additional features added.
  • the embodiment according to Fig. 5 namely a third frame 16.
  • This third frame is made of frame sections which have the same profile as the second frame part 13 which is in the Fig. 7a to 7c is shown in more detail and is already described above with reference to these figures.
  • the clear cross-sectional area of the third frame is smaller than the second frame part 13 of the first frame 9, 13.
  • the third frame 16 is screwed to the second frame part 13 of the first frame 9, 13.
  • the embodiment according to the Fig. 5 has a second sound absorbing means 21 in addition to the first sound absorbing means 17. This is also substantially cuboid-shaped, but has a smaller cross-sectional area than the first sound-absorbing means. Also, the height of the second sound absorbing means 21 is less than the height of the first sound absorbing means 17. The cross sectional area of the second sound absorbing means 21 is set so that the second sound absorbing means 21 is surrounded by the third frame 16 and interposed with butyl tape 19, 20 is decoupled from the third frame 16.
  • the second frame 2 with the fabric 4, 4a, 4b forms a kind of hood, with which the remaining parts of the devices according to the invention are covered. It remains between the first sound-absorbing means 17 and the second sound-absorbing means 21 (in the case of the embodiment according to FIG Fig. 5 ), a free space that promotes the sound absorption of the sound absorbing means 17 and the second sound absorbing means 21.

Abstract

The sound absorbing device has a first (9,13) and a second (2) frame, at least one first sound absorbing means (17), and a covering (4a,4b). The first sound absorbing means are detachably connected to the first frame, and the second frame is enclosed by the covering. The second frame with the covering is slipped over the first frame with the first sound absorbing means in the fashion of a hood and detachably connected to the first frame. A third frame (16) is detachably fitted to the first frame.

Description

Die Erfindung betrifft eine schallabsorbierende Vorrichtung, insbesondere zur Montage an einer Decke oder Wand.The invention relates to a sound-absorbing device, in particular for mounting on a ceiling or wall.

Eine solche schallabsorbierende Vorrichtung ist beispielsweise aus der Druckschrift DE 198 39 973 A1 bekannt. In der Druckschrift ist eine schallabsorbierende Vorrichtung beschrieben, die ein schallabsorbierendes Mittel aufweist, das mit einer Stoffbahn überzogen ist. Die so hergestellte Vorrichtung kann dann an einer Decke befestigt werden. Eine Vielzahl derartiger Vorrichtungen bewirkt dann die Schallabsorption in dem Raum. Das in der schallabsorbierenden Vorrichtung vorgesehene schallabsorbierende Mittel ist auf bestimmte Frequenzbereiche oder einen bestimmten Frequenzbereich abgestimmt. Schall mit Frequenzen aus diesen Frequenzbereichen wird von der schallabsorbierenden Vorrichtung absorbiert. Dadurch kann man in dem Raum eine hohe Sprachverständlichkeit mit einer optimalen Ausgeglichenheit des Nachhallzeitverlaufs erreichen.Such a sound-absorbing device is for example from the document DE 198 39 973 A1 known. The document describes a sound absorbing device comprising a sound absorbing means coated with a fabric. The device thus produced can then be fixed to a ceiling. A variety of such devices then causes the sound absorption in the room. The sound-absorbing means provided in the sound-absorbing device is tuned to specific frequency ranges or a certain frequency range. Sound with frequencies from these frequency ranges is absorbed by the sound absorbing device. This allows you to achieve a high speech intelligibility in the room with an optimal balance of the reverberation time course.

Ein Nachteil der in der Druckschrift beschriebenen Vorrichtung ist, dass eine nachträgliche Anpassung der in dem Raum montierten schallabsorbierenden Vorrichtungen nicht oder nur sehr schwer möglich ist. Eine nachträgliche Änderung kann jedoch aus verschiedenen Gründen erwünscht sein. Eine nachträgliche Änderung kann zum Beispiel erwünscht sein, wenn sich durch das Einbringen von Möbeln, Teppichen, Vorhängen oder dergleichen das akustische Verhalten des Raums ändert. Durch das Einbringen solcher Dinge in den Raum kann es notwenig werden, dass bestimmte Frequenzen stärker gedämpft werden als in einem Raum im ursprünglichen Zustand (Bestands-/Ist-Situation). Außerdem kann es notwendig sein, dass das akustische Verhalten entsprechend der Nutzung des Raums eingestellt wird. Ändert sich dann die Nutzung des Raums, kann es erforderlich sein, das akustische Verhalten an die geänderte Nutzung anzupassen.A disadvantage of the device described in the document is that a subsequent adaptation of the sound-absorbing devices mounted in the room is not or only with great difficulty possible. However, a subsequent change may be desired for various reasons. For example, a subsequent change may be desired if the acoustic behavior of the room changes as a result of the introduction of furniture, carpets, curtains or the like. By introducing such things into the room, it may be necessary to dampen certain frequencies more than in a room in the original state (inventory / actual situation). In addition, it may be necessary to adjust the acoustic behavior according to the use of the room. If the use of the room changes, it can be necessary to adapt the acoustic behavior to the changed use.

Um nachträgliche Änderungen in dem akustischen Verhalten eines Raums zu erhalten, der mit den aus dem Stand der Technik bekannten schallabsorbierenden Vorrichtungen ausgestattet ist, müssen die schallabsorbierenden Vorrichtungen vollständig ausgetauscht werden. Dies ist aufwändig und teuer, da die schallabsorbierenden Vorrichtungen nach deren Demontage in der Regel entsorgt werden.In order to obtain subsequent changes in the acoustic behavior of a room equipped with the sound-absorbing devices known from the prior art, the sound-absorbing devices must be completely replaced. This is complicated and expensive, since the sound-absorbing devices are usually disposed of after their dismantling.

Das Dokument CA 2 226 601 A1 offenbart eine schallabsorbierende Vorrichtung, die die Merkmale des Oberbegriffes des Anspruchs 1 aufweist.The document CA 2 226 601 A1 discloses a sound absorbing device having the features of the preamble of claim 1.

Hier setzt die vorliegende Erfindung an.This is where the present invention begins.

Der Erfindung liegt die Aufgabe zugrunde, schallabsorbierende Vorrichtungen vorzuschlagen, die an das gewünschte akustische Verhalten eines Raums flexibel angepasst werden kann.The invention has for its object to provide sound-absorbing devices that can be flexibly adapted to the desired acoustic behavior of a room.

Diese Aufgabe wird durch eine schallabsorbierende Vorrichtung nach Anspruch 1 gelöst. Eine schallabsorbierende Vorrichtung nach Anspruch 1, die insbesondere zur Montage an einer Decke oder Wand geeignet ist, hat einen ersten Rahmen, einen zweiten Rahmen, zumindest ein erstes schallabsorbierendes Mittel und eine Bespannung. Das erste schallabsorbierende Mittel ist mit dem ersten Rahmen lösbar und dadurch austauschbar, verbunden. Der zweite Rahmen ist mit der Bespannung bespannt. Der zweite Rahmen mit der Bespannung ist nach Art einer Haube über den ersten Rahmen mit dem ersten schallabsorbierenden Mittel gestülpt und mit dem ersten Rahmen lösbar verbunden. Die so ausgebildete schallabsorbierende Vorrichtung kann in ihrem Frequenzverhalten mit einfachen Mitteln geändert werden. Dazu wird der zweite Rahmen mit der Bespannung von dem ersten Rahmen gelöst, dann das erste schallabsorbierende Mittel von dem ersten Rahmen getrennt und gegen ein anderes schallabsorbierendes Mittel mit einem anderen Frequenzverhalten ausgetauscht. Anschließend wird der zweite Rahmen mit der Bespannung wieder über den ersten Rahmen mit dem ersten schallabsorbierenden Mittel gestülpt. Während des Austausches des schallabsorbierenen Mittels bleibt der erste Rahmen zumindest teilweise an der Decke oder der Wand befestigt.This object is achieved by a sound-absorbing device according to claim 1. A sound absorbing device according to claim 1, which is particularly suitable for mounting on a ceiling or wall, has a first frame, a second frame, at least a first sound-absorbing means and a covering. The first sound absorbing means is detachably connected to the first frame and thereby exchangeable. The second frame is covered with the fabric. The second frame with the cover is slipped over the first frame with the first sound-absorbing means in the manner of a hood and releasably connected to the first frame. The thus formed sound-absorbing device can be changed in their frequency response by simple means. For this purpose, the second frame with the covering is released from the first frame, then the first sound-absorbing means separated from the first frame and against another Sound-absorbing agent with a different frequency response replaced. Subsequently, the second frame with the covering is slipped over the first frame with the first sound-absorbing means again. During the replacement of the sound absorbing means, the first frame remains at least partially fixed to the ceiling or the wall.

Bei einer vorzugsweise verwendeten erfindungsgemäßen Vorrichtung ist der erste Rahmen zweiteilig ausgeführt. Der zweiteilig ausgeführte Rahmen kann dann ein erstes Rahmenteil umfassen, das an der Decke oder der Wand oder dergleichen montiert werden kann und welches beim Auswechseln des schallabsorbierenden Mittels an der Decke montiert verbleibt. Dieses erste Rahmenteil kann eine lichte Querschnittsfläche aufweisen, die genauso groß oder größer ist als die Querschnittsfläche des ersten schallabsorbierenden Mittels. Dann ist es möglich, dass das erste schallabsorbierende Mittel von dem ersten Rahmenteil eingefasst ist.In a preferred device according to the invention, the first frame is designed in two parts. The two-part frame may then comprise a first frame part which can be mounted on the ceiling or the wall or the like and which remains mounted on the ceiling when replacing the sound-absorbing means. This first frame part may have a clear cross-sectional area which is equal to or greater than the cross-sectional area of the first sound-absorbing means. Then it is possible for the first sound-absorbing means to be enclosed by the first frame part.

Der erste Rahmen kann neben dem ersten Rahmenteil auch ein zweites Rahmenteil umfassen. Dieses zweite Rahmenteil kann an dem ersten Rahmenteil des ersten Rahmens angebracht sein. Das zweite Rahmenteil hat vorteilhaft eine lichte Querschnittsfläche, die zumindest in einem Abschnitt kleiner ist als die Querschnittsfläche des ersten schallabsorbierenden Mittels, insbesondere damit mittels des zweiten Rahmenteils das erste schallabsorbierende Mittel gehalten werden kann. In weiteren Abschnitten kann die lichte Querschnittsfläche gleich beziehungsweise größer sein als die Querschnittsfläche des ersten schallabsorbierenden Mittels. Damit kann also das zweite Rahmenteil zur Befestigung des ersten schallabsorbierenden Mittels geeignet sein. Das erste schallabsorbierende Mittel kann zum Beispiel zwischen dem zweiten Rahmenteil und der Decke, der Wand oder dergleichen nach der Montage eingespannt sein.The first frame can also comprise a second frame part in addition to the first frame part. This second frame part may be attached to the first frame part of the first frame. The second frame part advantageously has a clear cross-sectional area which is smaller than the cross-sectional area of the first sound-absorbing means, at least in one section, in particular so that the first sound-absorbing means can be held by means of the second frame part. In further sections, the clear cross-sectional area may be equal to or greater than the cross-sectional area of the first sound-absorbing means. Thus, therefore, the second frame part may be suitable for fastening the first sound-absorbing means. The first sound absorbing means may, for example, be between the second Frame part and the ceiling, the wall or the like may be clamped after assembly.

Eine erfindungsgemäße Vorrichtung kann ferner einen dritten Rahmen aufweisen. Dieser dritte Rahmen kann lösbar an dem ersten Rahmen befestigt sein.A device according to the invention may further comprise a third frame. This third frame may be releasably attached to the first frame.

Die erfindungsgemäße Vorrichtung kann ein zweites schallabsorbierendes Mittel umfassen. Dieses kann mittels des dritten Rahmens in der Vorrichtung fixiert sein. Der dritte Rahmen kann dazu zumindest in einem Abschnitt eine lichte Querschnittsfläche haben, die kleiner ist als die Querschnittsfläche des schallabsorbierenden Mittels. Zumindest mit Abschnitten kann der dritte Rahmen das zweite schallabsorbierende Mittel einfassen. Das zweite schallabsorbierende Mittel kann vorteilhaft zwischen dem dritten Rahmen und dem ersten schallabsorbierenden Mittel nach der Montage eingespannt sein.The device according to the invention may comprise a second sound-absorbing means. This can be fixed in the device by means of the third frame. For this purpose, the third frame can have, at least in one section, a clear cross-sectional area which is smaller than the cross-sectional area of the sound-absorbing means. At least with sections, the third frame may enclose the second sound absorbing means. The second sound absorbing means may be advantageously clamped between the third frame and the first sound absorbing means after assembly.

Zwischen dem ersten beziehungsweise gegebenenfalls dem zweiten schallabsorbierenden Mittel und der Bespannung, die über den zweiten Rahmen gezogen ist, kann ein Abstand verbleiben, der besonders vorteilhaft für das akustischeverhalten der schallabsorbierenden Vorrichtung sein kann.A distance may remain between the first or, if appropriate, the second sound-absorbing means and the covering drawn over the second frame, which spacing may be particularly advantageous for the acoustic behavior of the sound-absorbing device.

Ausführungsbeispiele für erfindungsgemäße schallabsorbierende Vorrichtungen zur Montage an einer Decke oder Wand sind anhand der Zeichnung näher beschrieben. Darin zeigt

Fig. 1
eine Seitenansicht einer montierten erfindungsgemäßen Vorrichtung,
Fig. 2
die montierte Vorrichtung gemäß Fig. 1 in der Ansicht gemäß dem Pfeil II,
Fig. 2a
eine Einzelheit aus Fig. 2,
Fig. 3
einen um 90° abgewinkelten Schnitt durch eine erfindungsgemäße Vorrichtung mit einem schallabsorbierenden Mittel für mittlere und hohe Frequenzen,
Fig. 4
einen um 90° abgewinkelten Schnitt durch eine erfindungsgemäße Vorrichtung mit einem ersten schallabsorbierenden Mittel für tiefe und hohe Frequenzen,
Fig. 5
eine weitere erfindungsgemäße Vorrichtung mit einem ersten und in einem zweiten schallabsorbierenden Mittel zum Absorbieren in einem breiten Frequenzbereich in einem um 90° abgewinkelten Schnitt,
Fig. 6a bis 6c
Ansichten eines ersten Rahmenteils eines ersten Rahmens,
Fig. 7a bis 7c
Ansichten eines zweiten Rahmenteils des ersten Rahmens und
Fig. 8a bis 8c
Ansichten des zweiten Rahmens einer erfindungsgemäßen Vorrichtung.
Embodiments of inventive sound-absorbing devices for mounting on a ceiling or wall are described in detail with reference to the drawing. It shows
Fig. 1
a side view of a mounted device according to the invention,
Fig. 2
the assembled device according to Fig. 1 in the view according to the arrow II,
Fig. 2a
a detail Fig. 2 .
Fig. 3
a 90 ° angled section through a device according to the invention with a sound-absorbing means for medium and high frequencies,
Fig. 4
a 90 ° angled section through a device according to the invention with a first sound-absorbing means for low and high frequencies,
Fig. 5
a further device according to the invention with a first and in a second sound-absorbing means for absorbing in a wide frequency range in a 90 ° angled section,
Fig. 6a to 6c
Views of a first frame part of a first frame,
Fig. 7a to 7c
Views of a second frame part of the first frame and
Fig. 8a to 8c
Views of the second frame of a device according to the invention.

Die anhand der Figuren erläuterten Ausführungsbeispiele entsprechen in weiten Teilen einander. Es sind daher für gleiche Teile der Vorrichtungen gleiche Bezugszeichen verwendet. Die Vorrichtungen werden zunächst anhand des ersten Ausführungsbeispiels gemäß der Fig. 3 erläutert. Die Unterschiede des zweiten Ausführungsbeispiels gemäß der Fig. 4 und des dritten Ausführungsbeispiels gemäß der Fig. 5 zum ersten Ausführungsbeispiel werden anschließend dargestellt.The embodiments explained with reference to the figures largely correspond to one another. Therefore, like reference numerals are used for like parts of the devices. The devices will first be described with reference to the first embodiment according to Fig. 3 explained. The differences of the second embodiment according to the Fig. 4 and the third embodiment according to the Fig. 5 to the first embodiment will be shown below.

Das in der Fig. 3 dargestellte Ausführungsbeispiel für eine erfindungsgemäße schallabsorbierende Vorrichtung ist an einer Decke 1 montiert. Die Vorrichtung umfasst einen ersten Rahmen 9, 13. Der erste Rahmen ist zweiteilig ausgeführt und weist ein erstes Rahmenteil 9 und ein zweites Rahmenteil 13 auf. Das erste Rahmenteil 9 ist in verschiedenen Ansichten ausschnittsweise in den Fig. 6a bis 6c als Einzelteil dargestellt. Das zweite Rahmenteil ist in verschiedenen Ansichten zum Teil in den Fig. 7a bis 7c dargestellt. Beide Rahmenteile 9, 13 sind aus einem Profil vorzugsweise einem Strangpressprofil hergestellt, in dem Abschnitte des Profils auf Gehrung gesägt sind und so rechtwinklig aneinandergesetzt einen insgesamt rechteckförmigen Rahmen ergeben. Grundsätzlich sind - abweichend vom dargestellten Ausführungsbeispiel - alle Formen möglich (rechtwinklig, unwinklig, rund, Freiform etc.).Die vier Abschnitte eines jeden Rahmenteils 9, 13 sind dazu mit Winkeln 9a beziehungsweise 13a und Schrauben 9b beziehungsweise 13b miteinander verschraubt.That in the Fig. 3 illustrated embodiment of a sound-absorbing device according to the invention is mounted on a ceiling 1. The device comprises a first frame 9, 13. The first frame is designed in two parts and has a first frame part 9 and a second frame part 13. The first frame part 9 is fragmentary in different views in the Fig. 6a to 6c shown as a single part. The second frame part is in different views partly in the Fig. 7a to 7c shown. Both frame parts 9, 13 are made of a profile, preferably an extruded profile, in which sections of the profile are sawn miter and thus at right angles juxtaposed give an overall rectangular frame. In principle, all forms are possible (different from the illustrated embodiment) (rectangular, angular, round, freeform etc.) The four sections of each frame part 9, 13 are screwed together with angles 9a and 13a and screws 9b and 13b.

Das erste Rahmenteil 9 des ersten Rahmens 9, 13 ist mit Schrauben 5 an der Decke 1 angeschraubt. Dieses erste Rahmenteil 9 hat eine lichte Querschnittsfläche, die geringfügig größer ist als die Querschnittsfläche eines ersten schallabsorbierenden Mittels 17. Dadurch verbleibt zwischen dem schallabsorbierenden Mittel 17, das im Wesentlichen quaderförmig ausgebildet ist, und dem ersten Rahmenteil 9 ein Abstand.The first frame part 9 of the first frame 9, 13 is screwed to the ceiling 1 with screws 5. This first frame part 9 has a clear cross-sectional area which is slightly larger than the cross-sectional area of a first sound-absorbing means 17. As a result, a distance remains between the sound-absorbing means 17, which is substantially cuboid-shaped, and the first frame part 9.

Zwischen dem ersten Rahmenteil 9 und der Decke 1 ist im übrigen ein Compri-Band 10 eingelegt, welches die luftdichte Montage zwischen 9 und 1 schafft.In addition, a Compri band 10 is inserted between the first frame part 9 and the ceiling 1, which creates the airtight assembly between 9 and 1.

Das schallabsorbierende Mittel 17 kann im Grunde genommen beliebig ausgestaltet sein. Erste schallabsorbierende Mittel können eine akustisch wirksame Füllung zum Beispiel aus Mineralwolle, vorzugsweise in PE-Folie luftdicht verpackt, aufweisen. Diese akustisch wirksame Füllung kann auf einer Blecheinlage aufliegen, deren Stärke nach akustischen Anforderungen festgelegt werden kann. Akustisch wirksame Füllung und Blech können einen Plattenresonator bilden.The sound-absorbing means 17 can basically be configured as desired. First sound-absorbing means may comprise an acoustically effective filling, for example of mineral wool, preferably airtight packed in PE film. This acoustically effective filling can rest on a sheet metal insert, the strength of which can be determined according to acoustic requirements. Acoustic filling and sheet metal can form a plate resonator.

Das zweite Rahmenteil 13 hat eine lichte Querschnittsfläche, die kleiner ist als die Querschnittsfläche des ersten schallabsorbierenden Mittels 17. Mit einem Abschnitt ist das zweite Rahmenteil 13 ferner so ausgestaltet, dass es mit diesem Abschnitt das erste schallabsorbierende Mittel 17 umgreift. Mit einem auskragenden Abschnitt 14 hängt das zweite Rahmenteil 13 am ersten Rahmenteil 9. Über Schrauben 12 und unter Zwischenschaltung eines Vorlege-Bandes 11 mit einer Stärke von 3 mm sind das erste Rahmenteil 9 und das zweite Rahmenteil 13 miteinander verschraubt. Das zweite Rahmenteil hintergreift dabei unter Zwischenschaltung eines ersten Butylbandes 15 und eines zweiten Butylbandes 16 das erste schallabsorbierende Mittel 17 und drückt dies gegen die Decke 1, so dass das erste schallabsorbierende Mittel 17 zwischen der Decke 1 und dem zweiten Rahmenteil 13 des ersten Rahmens 9, 13 eingespannt ist.The second frame part 13 has a clear cross-sectional area that is smaller than the cross-sectional area of the first sound-absorbing means 17. With a portion, the second frame part 13 is further configured to surround the first sound-absorbing means 17 with this section. With a projecting portion 14, the second frame part 13 hangs on the first frame part 9. About screws 12 and with the interposition of a presentation tape 11 with a thickness of 3 mm, the first frame part 9 and the second frame part 13 are screwed together. The second frame part engages behind with the interposition of a first Butylbandes 15 and a second Butylbandes 16, the first sound-absorbing means 17 and presses this against the ceiling 1, so that the first sound-absorbing means 17 between the ceiling 1 and the second frame part 13 of the first frame 9, 13 is clamped.

Eine erfindungsgemäße Vorrichtung weist neben dem ersten Rahmen 9, 10 einen zweiten Rahmen 2 auf. Auch dieser zweite Rahmen ist wie in den Fig. 8a bis 8c dargestellt aus Profilabschnitten hergestellt, die auf Gehrung gesägt sind und unter Zuhilfenahme von Winkeln 2a und Schrauben 2b zu einem rechteckförmigen Rahmen zusammengeschraubt sind. Der Rahmen weist dabei Ausnehmungen 6, 7 auf, welche der Befestigung einer Bespannung 4, 4a, 4b dienen. Ferner hat der zweite Rahmen 2 einen auskragenden Abschnitt 8. Dieser auskragende Abschnitt 8 ist mit Bohrungen, beziehungsweise mit Ausnehmungen versehen, über welche der zweite Rahmen 2 an der Außenseite des ersten Rahmenteils 9 des ersten Rahmens 9, 13 befestigt ist. Der zweite Rahmen 2 wird dabei an den Schrauben 3a, die am ersten Rahmenteil 9 des ersten Rahmens 9, 13 verschraubt sind, eingehängt. Mittels der Schrauben 3b wird die Position des zweiten Rahmens 2 am ersten Rahmenteil 9 fixiert. Dieses ermöglicht jederzeit eine leichte Montage und Demontage des zweiten Rahmens 2.A device according to the invention has, in addition to the first frame 9, 10, a second frame 2. Also this second frame is like in the Fig. 8a to 8c shown manufactured from profile sections which are mitred and are screwed together with the aid of angles 2a and screws 2b to form a rectangular frame. The frame has recesses 6, 7, which serve to fasten a fabric 4, 4a, 4b. Furthermore, the second frame 2 has a projecting portion 8. This projecting portion 8 is provided with holes, or with recesses, via which the second frame 2 is attached to the outside of the first frame part 9 of the first frame 9, 13. The second frame 2 is mounted on the screws 3a, which are screwed to the first frame part 9 of the first frame 9, 13, mounted. By means of the screws 3b, the position of the second frame 2 is fixed to the first frame part 9. This allows at any time easy assembly and disassembly of the second frame. 2

Zur Befestigung der Spannung 4, 4a, 4b, bei den Ausführungsbeispielen gemäß der Fig. 3 bis 5 jeweils zweiteilig ausgeführt ist, werden die Ränder der Bespannungsteile 4a, 4b in die Ausnehmungen 6 beziehungsweise 7 geklemmt. Das erste der Bespannungsteile, das Bespannungsteil 4a, ist im übrigen als längliche Stoffbahn ausgeführt, die einmal um den Umfang des zweiten Rahmens 2 geschlagen ist und sowohl in der Ausnehmung 6 als auch in der Ausnehmung 7 geklemmt ist und im Bereich einer Ecke des zweiten Rahmens 2 vernäht ist. Das zweite Bespannungsteil 4b ist dagegen im Wesentlichen quadratisch beziehungsweise rechteckig ausgeführt und ist mit den Rändern in der Ausnehmung 7 des zweiten Rahmens 2 geklemmt.For fixing the voltage 4, 4a, 4b, in the embodiments according to the Fig. 3 to 5 each carried out in two parts, the edges of the covering parts 4a, 4b are clamped in the recesses 6 and 7 respectively. The first of the covering parts, the covering part 4a, is otherwise designed as an elongate material web, which is beaten once around the circumference of the second frame 2 and is clamped both in the recess 6 and in the recess 7 and in the region of Corner of the second frame 2 is sewn. By contrast, the second covering part 4b has a substantially square or rectangular construction and is clamped by the edges in the recess 7 of the second frame 2.

Die vorgenannten Merkmale weisen alle drei Ausführungsbeispiele gemäß der Fig. 3 bis 5 auf. Das Ausführungsbeispiel gemäß der Fig. 4 unterscheidet sich lediglich dadurch, dass nur ein Butylband 15 vorgesehen ist, um das schallabsorbierende Mittel 17 von dem zweiten Rahmenteil 13 des ersten Rahmens 9, 13 zu entkoppeln. Das zweite Butylband 16, was bei dem Ausführungsbeispiel gemäß der Fig. 3 vorgesehen ist, entfällt bei dem Ausführungsbeispiel gemäß Fig. 4. Ein weiterer Unterschied zwischen dem Ausführungsbeispiel gemäß Fig. 3 und dem Ausführungsbeispiel gemäß Fig. 4 ist, dass das schallabsorbierende Mittel 17 bei dem Ausführungsbeispiel gemäß Fig. 3 so ausgestaltet ist, dass mittlere und hohe Frequenzen absorbiert werden. Dagegen ist das schallabsorbierende Mittel 17 bei dem Ausführungsbeispiel gemäß der Fig. 4 so konfiguriert, dass insbesondere tiefe und hohe Frequenzen absorbiert werden.The aforementioned features have all three embodiments according to the Fig. 3 to 5 on. The embodiment according to the Fig. 4 differs only in that only a Butylband 15 is provided to decouple the sound absorbing means 17 of the second frame part 13 of the first frame 9, 13. The second Butylband 16, which in the embodiment according to the Fig. 3 is provided, omitted in the embodiment according to Fig. 4 , Another difference between the embodiment according to Fig. 3 and the embodiment according to Fig. 4 is that the sound absorbing means 17 in the embodiment according to Fig. 3 is designed so that medium and high frequencies are absorbed. In contrast, the sound absorbing means 17 in the embodiment according to the Fig. 4 configured to absorb low and high frequencies in particular.

Das Ausführungsbeispiel gemäß der Fig. 5 entspricht hinsichtlich der bereits geschriebenen Merkmale dem Ausführungsbeispiel gemäß Fig. 4. Es kommen jedoch weitere Merkmale hinzu. Zusätzlich zu den bereits genannten Merkmalen weist das Ausführungsbeispiel gemäß Fig. 5 nämlich einen dritten Rahmen 16 auf. Dieser dritte Rahmen ist aus Rahmenabschnitten hergestellt, die das gleiche Profil haben, wie das zweite Rahmenteil 13, der in den Fig. 7a bis 7c näher dargestellt ist und anhand dieser Figuren bereits vorstehend beschrieben ist. Die lichte Querschnittsfläche des dritten Rahmens ist jedoch im Unterschied zu dem zweiten Rahmenteil 13 des ersten Rahmens 9, 13 kleiner. Über den auskragenden Abschnitt 17 und über Schrauben 18 ist der dritte Rahmen 16 an dem zweiten Rahmenteil 13 des ersten Rahmens 9, 13 angeschraubt.The embodiment according to the Fig. 5 corresponds to the embodiment according to the already written features Fig. 4 , However, there are additional features added. In addition to the features already mentioned, the embodiment according to Fig. 5 namely a third frame 16. This third frame is made of frame sections which have the same profile as the second frame part 13 which is in the Fig. 7a to 7c is shown in more detail and is already described above with reference to these figures. However, the clear cross-sectional area of the third frame is smaller than the second frame part 13 of the first frame 9, 13. About the projecting portion 17 and 18 screws the third frame 16 is screwed to the second frame part 13 of the first frame 9, 13.

Das Ausführungsbeispiel gemäß der Fig. 5 weist neben dem ersten schallabsorbierenden Mittel 17 ein zweites schallabsorbierendes Mittel 21 auf. Auch dieses ist im Wesentlichen quaderförmig ausgebildet, hat jedoch eine kleinere Querschnittsfläche als das erste schallabsorbierende Mittel. Auch die Höhe des zweiten schallabsorbierenden Mittels 21 ist geringer als die Höhe des ersten schallabsorbierenden Mittels 17. Die Querschnittsfläche des zweiten schallabsorbierenden Mittels 21 ist so bemessen, dass das zweite schallabsorbierende Mittel 21 von dem dritten Rahmen 16 eingefasst ist und unter Zwischenschaltung von Butylbändern 19, 20 von dem dritten Rahmen 16 entkoppelt ist.The embodiment according to the Fig. 5 has a second sound absorbing means 21 in addition to the first sound absorbing means 17. This is also substantially cuboid-shaped, but has a smaller cross-sectional area than the first sound-absorbing means. Also, the height of the second sound absorbing means 21 is less than the height of the first sound absorbing means 17. The cross sectional area of the second sound absorbing means 21 is set so that the second sound absorbing means 21 is surrounded by the third frame 16 and interposed with butyl tape 19, 20 is decoupled from the third frame 16.

Der zweite Rahmen 2 mit der Bespannung 4, 4a, 4b bildet eine Art Haube, mit der die übrigen Teile der erfindungsgemäßen Vorrichtungen abgedeckt sind. Dabei verbleibt zwischen dem ersten schallabsorbierenden Mittel 17 beziehungsweise dem zweiten schallabsorbierenden Mittel 21 (im Falle des Ausführungsbeispiels gemäß Fig. 5) ein freier Raum, der die Schallabsorption der schallabsorbierenden Mittel 17 und des zweiten schallabsorbierenden Mittels 21 begünstigt.The second frame 2 with the fabric 4, 4a, 4b forms a kind of hood, with which the remaining parts of the devices according to the invention are covered. It remains between the first sound-absorbing means 17 and the second sound-absorbing means 21 (in the case of the embodiment according to FIG Fig. 5 ), a free space that promotes the sound absorption of the sound absorbing means 17 and the second sound absorbing means 21.

Claims (14)

  1. Sound-absorbing device, in particular for mounting on a ceiling (1) or wall, comprising the following features:
    - the device has a first frame (9, 13), a second frame (2), at least a first sound-absorbing means (17), and a covering (4, 4a, 4b);
    - the second frame (2) is covered by the covering (4, 4a, 4b) and releasably connected to the first frame (9, 13);
    characterized in that the first sound-absorbing means (17) is releasably connected to the first frame (9, 13), and the second frame (2) with the covering (4, 4a, 4b) is fitted over the first frame (9, 13) with the first sound-absorbing means (17) in the manner of a hood.
  2. Device according to Claim 1, characterized in that the first frame (9, 13) is designed in two parts.
  3. Device according to Claim 2, characterized in that a first frame part (9) of the first frame (9, 13) can be mounted on the ceiling (1), the wall or the like.
  4. Device according to Claim 3, characterized in that the first frame part (9) has a clear cross-sectional area which is exactly the same size or larger than the cross-sectional area of the first sound-absorbing means (17).
  5. Device according to Claim 4, characterized in that the first sound-absorbing means (17) is enclosed by the first frame part (9).
  6. Device according to one of Claims 2 to 5, characterized in that a second frame part (13) of the first frame (9, 13) is mounted on the first frame part (9).
  7. Device according to one of Claims 2 to 6, characterized in that the second frame part (13) has a clear cross-sectional area which is smaller than the cross-sectional area of the first sound-absorbing means (17).
  8. Device according to Claim 6 or 7, characterized in that the first sound-absorbing means (17) can be clamped into place between the second frame part (13) and the ceiling (1), the wall or the like.
  9. Device according to one of Claims 1 to 8, characterized in that the device has a third frame (16).
  10. Device according to Claim 9, characterized in that the third frame (16) is releasably mounted on the first frame (9, 13).
  11. Device according to Claim 9 or 10, characterized in that the device comprises a second sound-absorbing means (21).
  12. Device according to Claim 11, characterized in that the third frame has a clear cross-sectional area which is smaller than the cross-sectional area of the second sound-absorbing means (21).
  13. Device according to Claim 11 or 12, characterized in that at least portions of the third frame (16) enclose the second sound-absorbing means.
  14. Device according to one of Claims 11 to 13, characterized in that the second sound-absorbing means (21) can be clamped into place between the third frame (16) and the first sound-absorbing means (17).
EP05018336A 2004-08-25 2005-08-24 Sound absorbing device, specially for mounting on a ceiling or wall Active EP1630311B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202004013360U DE202004013360U1 (en) 2004-08-24 2004-08-25 Sound absorbing device has second frame with covering is slipped over first frame with first sound absorbing means in fashion of hood and detachably connected to first frame

Publications (3)

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EP1630311A2 EP1630311A2 (en) 2006-03-01
EP1630311A3 EP1630311A3 (en) 2007-06-27
EP1630311B1 true EP1630311B1 (en) 2011-08-10

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AT (1) ATE519897T1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2314783A1 (en) * 2009-10-21 2011-04-27 Thorsten Flörsheimer Ambient noise absorber
EP2725161B1 (en) * 2012-10-24 2015-10-14 Saint-Gobain Ecophon AB Sound absorbing module and a suspended ceiling comprising the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2226601A1 (en) * 1998-03-17 1999-09-17 Macdonald Gillis Pre-fabricated fabric covered acoustical wall panels
DE19839973A1 (en) 1998-09-02 2000-03-23 Fraunhofer Ges Forschung Plate-shaped component

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EP1630311A2 (en) 2006-03-01
EP1630311A3 (en) 2007-06-27
ATE519897T1 (en) 2011-08-15

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