EP2098652A2 - Unité d'absorption du bruit - Google Patents

Unité d'absorption du bruit Download PDF

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Publication number
EP2098652A2
EP2098652A2 EP09152542A EP09152542A EP2098652A2 EP 2098652 A2 EP2098652 A2 EP 2098652A2 EP 09152542 A EP09152542 A EP 09152542A EP 09152542 A EP09152542 A EP 09152542A EP 2098652 A2 EP2098652 A2 EP 2098652A2
Authority
EP
European Patent Office
Prior art keywords
sound
absorber unit
unit according
airborne
self
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.)
Withdrawn
Application number
EP09152542A
Other languages
German (de)
English (en)
Other versions
EP2098652A3 (fr
Inventor
Harald Graf-Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2098652A2 publication Critical patent/EP2098652A2/fr
Publication of EP2098652A3 publication Critical patent/EP2098652A3/fr
Withdrawn legal-status Critical Current

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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
    • E04B1/86—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
    • 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
    • E04B1/8209—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 sound absorbing devices
    • 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
    • E04B2001/829—Flat elements mounted at an angle, e.g. right angle, to the supporting surface

Definitions

  • the invention relates to a sound absorber unit which can be attached to a wall or ceiling of a room, in particular a paper machine hall. It also relates to a method for reducing the sound pressure levels in a room, in particular paper machine hall, using such Schallabsorberüen.
  • sound-absorbing elements can be mounted on the hall ceiling and on the hall walls. By increasing the average sound absorption level or the reduction of the reflected sound waves in the hall, a reduction of the noise emissions at the operator level is then achieved.
  • an acoustic wall or ceiling panel which has a support structure formed by a wood chipboard or wood fiber board laminated with a porous cover layer which may be a micro-perforated plastic film.
  • the invention has for its object to provide an improved sound absorber unit and an improved method of the type mentioned above, with which a more effective reduction of occurring in the room or paper machine hall sound pressure level is guaranteed.
  • a reduction of the sound pressure level in the vicinity of paper machines, especially at the operator level in the area of the headbox, the wire section, the press section and parts of the dryer section by the installation of appropriate, especially against moisture, water and steam insensitive sound absorber units should be possible.
  • the sound absorber units should be as inexpensive as possible, easy to assemble, lightweight and easy to manipulate, easy to clean, hygienic resistant and e.g. for condensing water to be dissipative.
  • this object is achieved according to the invention in that it comprises at least one self-supporting plate which absorbs airborne noise and is at least partially surrounded by an airborne sound, in particular a film-like coating.
  • the airborne sound-absorbing self-supporting plate is preferably coated with an airborne sound, water and / or vapor-tight, in particular tear-resistant film.
  • Such sound absorber units can be installed, for example, on the ceiling and the walls in the vicinity of noise emitting areas such as a paper machine, especially in the vicinity of the headbox, the wire section, the press section and parts of the dryer section of the paper machine.
  • the areal elements absorb the airborne noise emissions from the noise emitting areas, and the airborne sound reflections at the room boundaries absorb their propagation into the room or the paper machine hall prevented.
  • an essential property of these planar elements or sound absorber units is described by the acoustic parameter sound absorption or sound absorption degree or "sound deadening degree".
  • a frame is at least partially attached to the outer edge of the airborne sound absorbing self-supporting plate and the coating or the film preferably pulled over this frame.
  • This frame may for example be provided with rounded edges.
  • Such a frame not only serves to improve the appearance, it also brings with it a reduction in the risk of cracks in the coating or foil around the airborne sound-absorbing self-supporting plate.
  • the further airborne sound absorbing material may be provided, for example in the form of a foam, a fiber material, a fabric and / or the like.
  • the foam may comprise, for example, at least one PUR foam.
  • the fiber material preferably comprises rock wool, glass wool, wood wool, flat wool, hemp wool and / or the like.
  • the further airborne sound absorbing material comprises at least one woven fabric.
  • the airborne sound-absorbing self-supporting plate may consist in particular of a fiber material and preferably at least partially of wood wool, rock wool or glass wool.
  • the acoustic properties of the airborne sound-absorbing, self-supporting panel material may in particular be selected such that the panel material has the highest possible degree of sound absorption over the respective relevant frequency range or over certain frequency ranges.
  • combinations of different airborne sound absorbing, even softer materials with the self-supporting panel material are possible.
  • further acoustically absorbent materials such as foams, fiber materials, etc. may be inserted.
  • the softer, for example, further airborne sound absorbing materials can either be at the source of the noise facing side or on the side facing away from the noise source side or be provided on both sides of the airborne sound absorbing self-supporting plate.
  • fibers such as rock wool, glass wool, wood wool, flat wool, hemp wool, etc.
  • foams such as polyurethane foams or types of fabric, such as woven fabrics, can be used.
  • the sound absorber unit can be suspended without costly frame or support structures, in particular also perpendicular to the relevant wall and also horizontally from the ceiling.
  • the board material is fiber material and here in particular wood wool, rock wool or glass wool, wherein e.g. a Heraklith plate is conceivable.
  • the further, in particular softer airborne sound absorbing materials can contribute to the acoustic effect of the planar elements or sound absorber units, but are not absolutely necessary.
  • the airborne sound-absorbing self-supporting plate which is at least partially surrounded by an airborne sound, in particular a film-like coating, is inclined with respect to the relevant wall or is suspended obliquely from the relevant ceiling.
  • the frequency characteristic of the sound absorption coefficient of the sound absorbing unit on the material of the airborne sound-absorbing self-supporting plate, the material or materials of further airborne sound absorbing material, the suspension distance from the respective wall or ceiling and / or the inclination with respect to relevant wall or ceiling to the frequency characteristics of the sound pressure emissions of the adjacent sound emitting area for example, adapted to the frequency characteristics of the sound pressure emissions of the headbox, the wire section, the press section or at least a portion of the dryer section of a paper machine.
  • the sound absorption coefficient of the planar sound absorber units should therefore be as high as possible.
  • the airborne sound-absorbing self-supporting plate is in direct contact with the particular film-like coating.
  • the airborne sound absorbing self-supporting plate can be inserted without firm connection with the particular film-like coating in this or even preferably by gluing firmly connected to the particular film-like coating.
  • the sound absorber unit can thus in particular also be constructed so that the airborne sound-absorbing self-supporting plate material is in direct contact with the coating or the film. This contact occurs on uneven or rough surfaces of the board material, eg in fiber materials or foams as a plate material, at several points, ie at points of contact of the film with the plate material. In flat or smooth surfaces of the plate material, in contrast, results in a full-surface contact.
  • connection between the board material and the film results merely by inserting the board material into the film, the contact is formed by the gravitational force, provided the respective sound absorber unit is not vertically aligned.
  • a permanent connection of the board material with the film can be made in particular by gluing, for example by means of an adhesive or by heating.
  • An expedient practical embodiment of the sound absorber unit according to the invention is characterized in that the film-like coating, in particular, touches the airborne sound-absorbing self-supporting plate in a planar manner.
  • the airborne sound absorbing self-supporting plate can be suspended over the particular film-like coating, so that the airborne sound absorbing self-supporting plate is located in the tensioned film-like particular coating.
  • the combination of the particular fibrous plate material with the film leads to an acoustic synergy of the two materials over a very wide frequency range.
  • airborne sound transmits through the film in a frequency-dependent manner and is absorbed well by the inner fiber material of the airborne sound-absorbing self-supporting plate from a frequency of about 200 Hz.
  • the film in combination with the fiberboard forms a plate vibrator which extracts energy from the surrounding sound field in the low frequency range below 200 Hz.
  • fiber materials usually show good absorptivities in the medium and high-frequency range. This effect is based, on the one hand, on the viscous frictional forces of the air molecules oscillating in the pores between the fibers. On the other hand, the moving air molecules experience momentum losses in the deflections and constrictions or extensions between the fibers.
  • the air is also alternately compressed and dilated. Due to the good thermal contact between the fibers and the air and the thus given especially at low and medium frequencies instead of the usual adiabatic compression isothermal Compression of the air creates thermal losses that deprive the surrounding sound field of energy.
  • the inventive film-fiber board combination results in significant reinforcements of the so-called skeletal vibrations of the fiber material.
  • the film thus transmits the low-frequency components of the noise spectrum to the fiber plate contacting it, which in turn is thereby excited to flexural vibrations. Without foil, this excitation of the fiberboard would be much smaller.
  • the film thus acts as a membrane amplifier.
  • the bending vibrations of the fiberboard lead to friction losses of the mutually rubbing fibers, which entails an energy reduction in the sound field, especially in the low-frequency range below 200 Hz.
  • the airborne sound-absorbing self-supporting plate is thus preferably formed by a pulp board.
  • the coating may be formed by a film made of plastic, but expediently also by a film consisting of metal or a similar material.
  • the airborne sound permeable coating may at least partially made of air-permeable material such as fabric or fabric in particular. It can be selected in this case, for example, a visually appealing air-permeable material for the airborne sound permeable coating. This is useful, for example, in the maintenance of papermaking plants, where the humidity is in the normal range for open-pored absorption materials.
  • this comprises at least two airborne sound absorbing self-supporting plates, which are sandwiched one above the other and spaced from each other.
  • the airborne sound-absorbing self-supporting plates can be at least partially surrounded by a common airborne sound transmissive, in particular film-like coating.
  • airborne sound absorbing self-supporting plates further, especially softer airborne sound absorbing material may or may not be incorporated.
  • the distance between the two superposed airborne sound absorbing self-supporting plates is at most about 300 mm, wherein it is preferably less than 200 mm. Preferably, however, there is always a distance between the plates.
  • At the outer edge of the airborne sound absorbing self-supporting plates can at least partially attached to this common frame be.
  • the coating or the film is expediently pulled over the common frame.
  • corner pieces are provided in the region of the corners of the airborne sound-absorbing self-supporting plates, the distance between the airborne sound-absorbing self-supporting plates, optionally the distance between interposed further airborne sound absorbing materials and / or the respective distances between the plates and the coating define.
  • At least one in particular again the distance between the airborne sound absorbing self-supporting plates, optionally the distance between arranged between other airborne sound absorbing materials and / or the respective distances between the plates and the coating defining intermediate piece may be provided, which is arranged between two corner pieces.
  • the frame does not have to be continuous.
  • corner pieces may be attached to the corners of the self-supporting plates, which accomplish the distances between the self-supporting plates or the intermediate, in particular soft, absorption materials used or to the film. In particular, for stabilization at greater length spacers can be installed.
  • the inventive method for reducing the sound pressure level in a room, in particular in a paper machine hall characterized in that using at least one of a wall and / or the ceiling of the room suspended Schallabsorbervenezen inventive the frequency characteristic of the sound absorption of the sound absorber units respectively on the material of Airborne sound absorbing self-supporting plate, optionally the one or more materials of the further airborne sound absorbing materials, the suspension distances of the respective wall or ceiling and / or the inclinations with respect to the respective wall or ceiling to the frequency characteristics of the sound pressure emissions of the adjacent sound emitting area, in particular the frequency characteristic of the sound pressure emissions of the headbox, the wire section, the press section or a part of a dryer section of a paper machine, is adjusted.
  • Fig. 1 shows a schematic representation of an exemplary embodiment of a sound absorber unit 10, which via a suspension 12, for example, to a ceiling 14 or a wall 16 (see also 4 to 6 ) can be attached.
  • this sound absorber unit 10 is suspended from a ceiling and positioned horizontally or parallel to this ceiling.
  • the sound absorber unit 10 may in particular be attached to a wall or ceiling of a paper machine hall.
  • the sound absorber unit 10 comprises a self-supporting plate 18 which is suspended from the respective wall 16 or ceiling 14 and which is at least partly, in this case completely, surrounded by an airborne sound-transmitting coating (in this case for example a film 20).
  • an airborne sound-transmitting coating in this case for example a film 20.
  • the airborne sound-absorbing self-supporting plate 18 in particular with an airborne sound permeable, water and / or vapor-tight, in particular tear-resistant film 20 may be coated.
  • the outer edge of the airborne sound absorbing self-supporting plate 18 is at least partially surrounded by a frame 22 which is fixed to the plate 18. As based on the Fig. 1 can be seen, the airborne sound absorbing self-supporting plate 18 enclosing film 20 is also drawn over this frame 22.
  • Fig. 1 can also be removed remains between the airborne sound absorbing self-supporting plate 18 and the film 20 both on the upper and on the lower broad side in each case a gap.
  • the airborne sound-absorbing self-supporting plate 18 may in particular consist of a fiber material. Preferably, it consists at least partially of wood wool, rock wool or glass wool.
  • the film forming the coating 20 may in particular be made of plastic or of metal or a similar material.
  • a covering 20 made of an air-permeable material such as, in particular, fabric or fabric, is also conceivable, in which, among other things, in particular aesthetic aspects can be taken into account.
  • Fig. 2 shows a schematic representation of another embodiment of the sound absorber unit 10.
  • the airborne sound absorbing self-supporting plate 18 and the film 20 further airborne sound absorbing material 24 is introduced.
  • the further airborne sound absorbing material 24 may be provided for example in the form of a foam, a fiber material, a fabric and / or the like.
  • Contains the further airborne sound absorbing material 24 foam it may be, for example, a polyurethane foam.
  • Contains fiber material it may be, for example, stone wool, glass wool, wood wool, flat wool, hemp wool and / or the like.
  • the further airborne sound absorbing material 24 may in particular also comprise at least one woven fabric or the like.
  • the sound absorber unit 10 for example, at least substantially the same structure as that of Fig. 1 exhibit.
  • Fig. 3 shows a schematic representation of an obliquely suspended from a ceiling sound absorber unit 10 with associated channel 26 for dripping water.
  • Fig. 4 shows a schematic representation of an exemplary arrangement of Schallabsorberritten, in which the Fig. 4 left sound absorber unit 10 has a greater distance from the ceiling 14 than that in the Fig. 4 right sound absorber unit 10. Due to the larger distance from the ceiling 14, the left sound absorber unit 10 is effective in a lower frequency range, while the right at a smaller distance from the ceiling 14 right Schallabsorberatti 10 is effective in a high-frequency frequency range.
  • Fig. 5 shows a schematic representation of an exemplary arrangement of Schallabsorberritten, in which two sound absorber units 10 are once suspended at a relatively smaller distance and once at a relatively greater distance from a wall 16. It works in the left part of the Fig. 5 illustrated arrangement in which the Schallabsorberussien 10 have a relatively smaller distance from the wall 16, in a higher frequency area, while those in the right part of the Fig. 5 illustrated arrangement in which the sound absorber units 10 have a relatively greater distance from the wall 16, acts in a relatively low-frequency frequency range.
  • Fig. 6 1 schematically shows an exemplary arrangement of sound absorber units in which a sound absorber unit 10 'is obliquely suspended from a ceiling 14 and two sound absorber units 10 "at an angle from an adjacent wall 16. Since these sound absorber units 10', 10" are relative to the ceiling 14 and 14, respectively. the wall 16 are inclined, they act in a compared to a ceiling 14 and the wall 16 parallel Schallabsorberappel in a broader frequency range.
  • Fig. 7 shows a schematic representation of another embodiment of a sound absorber unit 10.
  • the airborne sound-absorbing self-supporting plate 18 is in direct contact with the film 20th
  • the airborne sound absorbing self-supporting plate 18 can be inserted without firm connection with the film 20 in this or even be firmly bonded to the film, for example by gluing.
  • the film 20 can touch the airborne sound-absorbing self-supporting plate 18 in particular flat.
  • the airborne sound-absorbing self-supporting plate 18 may be suspended in particular via the film 20, so that the airborne sound-absorbing self-supporting plate 18 is located in the tensioned film 20.
  • the airborne sound-absorbing self-supporting plate 18 surrounded by the foil 20 is suspended, for example, again via a suspension 12 on a ceiling.
  • Fig. 8 shows a plan view of the in the Fig. 7 reproduced sound absorber unit 10.
  • Fig. 9 shows a schematic representation of another embodiment of the sound absorber unit 10.
  • two airborne sound absorbing self-supporting plates 18 are sandwiched and spaced from each other.
  • the arrangement comprising the two plates 18 is surrounded by the film 20.
  • the distance d between the two superposed airborne sound absorbing self-supporting plates 18 is preferably at most about 300 mm, wherein it is preferably less than 200 mm.
  • At the outer edge of the airborne sound absorbing self-supporting plates 18 may at least partially be attached to this common frame 28.
  • the film 20 is expediently pulled over this common frame 28.
  • corner pieces 30 are provided in the region of the corners of the airborne sound-absorbing self-supporting plates 18.
  • the distance between the sound-absorbing self-supporting plates 18, optionally the distance between further airborne sound absorbing materials 24 disposed therebetween, and / or the respective distances between the plates 18 and the film 20 may be defined via these corner pieces 30.
  • intermediate pieces 32 may be arranged on the longitudinal sides between the corner pieces 30 in particular also intermediate pieces 32 may be arranged. These intermediate pieces 32 may in particular again be provided to define the distance between the sound-absorbing self-supporting plates 18, optionally the distance between further airborne sound absorbing materials 24 and / or the respective distances between the plates 18 and the film 20.
  • the frequency characteristic of the sound absorption coefficient of a respective sound absorber unit 10 to the frequency characteristics of the sound pressure emissions of the adjacent sound emitting area, preferably to the frequency characteristics of the sound pressure emissions of the headbox, the wire section, the press section or a part of the dryer section of a paper machine, adapted.
  • the frequency characteristic of the sound absorption coefficient of the sound absorber units 10 may be increased by using sound absorbing units 10 suspended on at least one wall 16 and / or ceiling 14 of the paper machine hall via the material of the airborne sound absorbing self-supporting panel 18, the or Materials of further airborne sound absorbing material 24 bwz. Materials (24), the suspension distance from the respective wall 16 or ceiling 14 and / or the inclination relative to the relevant wall 16 or ceiling 14 to the frequency characteristic of the sound pressure emissions of the headbox, the wire section, the press section or a part of the dryer section of the relevant Paper machine can be customized.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP09152542A 2008-03-04 2009-02-11 Unité d'absorption du bruit Withdrawn EP2098652A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810000500 DE102008000500A1 (de) 2008-03-04 2008-03-04 Schallabsorbereinheit

Publications (2)

Publication Number Publication Date
EP2098652A2 true EP2098652A2 (fr) 2009-09-09
EP2098652A3 EP2098652A3 (fr) 2012-01-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09152542A Withdrawn EP2098652A3 (fr) 2008-03-04 2009-02-11 Unité d'absorption du bruit

Country Status (2)

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EP (1) EP2098652A3 (fr)
DE (1) DE102008000500A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2333181A1 (fr) * 2009-12-04 2011-06-15 Phoneon GmbH Optimisation acoustique de l'espace
IT201800006283A1 (it) * 2018-06-13 2019-12-13 Struttura di rivestimento a parete o controsoffitto, per il miglioramento delle prestazioni acustiche di un ambiente interno.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008043989A1 (de) 2008-11-21 2010-05-27 Voith Patent Gmbh Dunsthaube in eine Papier-und/oder Kartonmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330407C1 (de) 1993-09-08 1994-10-20 Roland Bender Dampfsperre an einer Isolierverkleidung in Räumen
DE4442053C1 (de) 1993-09-08 1996-04-04 Roland Bender Dampfsperre an einer Isolierverkleidung in Räumen
DE202006000201U1 (de) 2006-01-09 2006-03-30 Knauf Gips Kg Raumelement zur decken- oder wandseitigen Befestigung
EP1820915A1 (fr) 2006-02-20 2007-08-22 Gerhard Kosche Procédé de fabrication d'un panneau acoustique de construction et paneau associé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702046A (en) * 1985-11-08 1987-10-27 General Communications, Inc. Acoustical wall panel
DE3643481A1 (de) * 1986-05-14 1987-11-19 Pape Hans Schallschluckbeschichtung einer akustikwand oder akustikdecke
DE4220492A1 (de) * 1992-06-23 1994-01-13 Heinz Reiss Plattenförmiges Schalldämmelement zur Montage unterhalb einer Raumdecke
WO2007073732A2 (fr) * 2005-12-23 2007-07-05 Wilson-Acoustix Gmbh Absorbant acoustique poreux multicouche

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330407C1 (de) 1993-09-08 1994-10-20 Roland Bender Dampfsperre an einer Isolierverkleidung in Räumen
DE4442053C1 (de) 1993-09-08 1996-04-04 Roland Bender Dampfsperre an einer Isolierverkleidung in Räumen
DE202006000201U1 (de) 2006-01-09 2006-03-30 Knauf Gips Kg Raumelement zur decken- oder wandseitigen Befestigung
EP1820915A1 (fr) 2006-02-20 2007-08-22 Gerhard Kosche Procédé de fabrication d'un panneau acoustique de construction et paneau associé

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2333181A1 (fr) * 2009-12-04 2011-06-15 Phoneon GmbH Optimisation acoustique de l'espace
IT201800006283A1 (it) * 2018-06-13 2019-12-13 Struttura di rivestimento a parete o controsoffitto, per il miglioramento delle prestazioni acustiche di un ambiente interno.

Also Published As

Publication number Publication date
EP2098652A3 (fr) 2012-01-25
DE102008000500A1 (de) 2009-09-10

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