EP1770216A1 - Schallabsorbierendes Element und Lärmschutzschirm mit einem solchen Element - Google Patents

Schallabsorbierendes Element und Lärmschutzschirm mit einem solchen Element Download PDF

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Publication number
EP1770216A1
EP1770216A1 EP05388081A EP05388081A EP1770216A1 EP 1770216 A1 EP1770216 A1 EP 1770216A1 EP 05388081 A EP05388081 A EP 05388081A EP 05388081 A EP05388081 A EP 05388081A EP 1770216 A1 EP1770216 A1 EP 1770216A1
Authority
EP
European Patent Office
Prior art keywords
noise
noise absorbing
core material
pliable
absorbing element
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Withdrawn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
EP05388081A
Other languages
English (en)
French (fr)
Inventor
Claus Paaske Voigt Andersen
Bo Paulsen
Soren Primdahl
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.)
Rockwool AS
Original Assignee
Rockwool International AS
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 Rockwool International AS filed Critical Rockwool International AS
Priority to EP05388081A priority Critical patent/EP1770216A1/de
Priority to EP06776006A priority patent/EP1929092A1/de
Priority to PCT/DK2006/000531 priority patent/WO2007036231A1/en
Publication of EP1770216A1 publication Critical patent/EP1770216A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0011—Plank-like elements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0052—Grate-style, e.g. as wall facing
    • E01F8/0058—Grate-style, e.g. as wall facing with damping material, e.g. rockwool, sand

Definitions

  • the invention relates to a noise absorbing element for a noise screen comprising a plurality of such elements arranged in an edge-to-edge relationship.
  • the noise absorbing element has a main surface that in its use position is substantially vertical, it comprises a pliable noise absorbing core material, and it has as a whole rigidity and strength to withstand normal wind load provided transversely to the main surface of the element
  • the invention also relates to a noise screen provided with a plurality of such noise absorbing elements.
  • Noise screens or noise barriers for absorbing and/or reducing noise from road traffic, trains, industrial noise, etc. are known in various shapes and structural forms.
  • Noise screens can be divided into two main classes: noise screens that are built from scratch on the site and noise screens that comprise noise reducing/absorbing elements that are prefabricated and mounted on the site.
  • Noise screen may comprise rigid or pliable noise absorbing core material. Examples of rigid noise absorbing material are corrugated concrete, lightweight concrete and wood. Examples of pliable noise absorbing core material are mineral wool and rubber.
  • the present invention relates only to noise screens comprising a pliable noise absorbing core material which typically is better noise absorbing and/or reducing than rigid noise absorbing materials.
  • a noise screen in the first class of noise screens is typically made by erecting outer walls and arranging a noise reducing/absorbing core material between the outer walls.
  • the noise reducing/absorbing material may be soil, mineral wool (loose or in the shape of blocks), gravel, recycled waste material, etc.
  • the outer walls of the erected noise screen must be able to withhold the core material, which of course set up limitations in relation to which materials can be used as outer walls. The visual appearance of the noise screen is therefore also limited unless a supplementary covering is provided.
  • EP-A1-393 735 shows a noise screen of this type.
  • the second class of noise screens are typically built by mounting vertical beams (for instance H-beams) and arranging prefabricated noise absorbing elements between the vertical beams.
  • the prefabricated elements may have a height corresponding to the finished noise screen or more elements may be stacked on top of each other in order to reach the desired height.
  • the elements are connected to the vertical beams in a suitable manner.
  • the noise absorbing elements are pliable or non-rigid and are covered on at least one side by a plate or the like that prevents e.g. wind loads in destroying the noise absorbing elements.
  • EP-A2-385 087 and EP-A1-1 032 733 show noise screens of this type.
  • horizontal beams may be provided for restricting deflection of the noise reducing/absorbing elements.
  • EP-A2-1 120 496 shows an example of this.
  • the noise absorbing elements are not covered, and an important aspect of this type of noise screens is that the noise absorbing elements must have sufficient rigidity and strength to withstand physical loads, such as wind loads transversely to the length of the element, since no further structural elements are normally provided.
  • the visual appearance of the noise absorbing elements is important, since the visual appearance of the noise screen as a whole is given by the appearance of the noise absorbing elements. Therefore, the elements or cassettes are provided with an outer casing that provides structural strength and rigidity to the elements as well as provides the desired final visual appearance.
  • the pliable noise absorbing core material is arranged inside the casing, which in most cases is partly open at least to the side that faces the source of noise.
  • WO 98/58127 shows a noise screen of this type. In order to provide a green appearance of the noise screen, there may be provided means for growing plants on the surface of the noise screen.
  • the present invention relates to the last described type of noise screens, i.e. noise screens made by mounting prefabricated noise absorbing elements adjacent each other, which elements comprise a pliable noise absorbing material and which elements must be sufficiently strong to be able to withstand normal wind load. In accordance with a norm this may be define as a max. deflection of 50 mm under a load of 1.56 kN/m 2 .
  • the known elements for this kind of noise screens are quite complex and comprise an outer structural casing made of e.g. metal plates or metal nets and a pliable noise absorbing material arranged inside the casing. This structure of the elements makes them expensive due to the large amount of materials used for the structural and visually appealing casing and the time and labour required for its manufacturing.
  • the visual appearance of the whole noise screen is determined by the visual appearance of the noise absorbing elements. If it is desired to change the visual appearance it is necessary to produce new noise absorbing elements or to mount a covering that conceals at least partly the noise absorbing elements. This will further increase the costs of the noise screen.
  • This object is achieved by arranging the noise absorbing element mentioned in the opening paragraph in such manner that the pliable noise absorbing core material constitutes an essential structural part of the noise absorbing element.
  • the pliable core material is arranged as a sort of "fitter" in the structural casing of the element without providing any, or only minor, structural strength to the element. Contrary to this, in the present invention the structural integrity of the noise absorbing element is highly dependent on the pliable core material.
  • the noise absorbing element comprises at least one structural beam extending from one end of the element to the other. This structural beam provides strength to the noise absorbing element, such that the element, which mainly consists of the pliable noise absorbing core material, as a whole is able to withstand wind load transversely to the main surface of the noise absorbing element.
  • the at least one structural beam is an H-beam made of metal, such as steel or aluminium, and it has its body part firmly connected to the pliable noise absorbing core material. Due to its cross-section, which provides a large moment of inertia, an H-beam has a big resistance against bending. Thus, it is suitable for providing strength and rigidity to the noise absorbing element.
  • the noise absorbing element comprises only one H-beam arranged at a longer edge of the noise absorbing element.
  • the opposite longer edge which is not provided with any strengthening element, can be supported by a corresponding H-beam provided on the adjacent noise absorbing element.
  • the at least one beam is C-shaped in cross-section with the ends of the C extending into the pliable noise absorbing core material.
  • a C-shaped beam also has a large moment of inertia, and hence it provides strength and rigidity to the noise absorbing element.
  • the at least one structural beam is made of hardened noise absorbing core material.
  • the whole noise absorbing element is made of the noise absorbing core material, which might reduce the manufacturing costs.
  • the noise absorbing element may comprise only one structural beam (H-beam). However, if required in order to obtain sufficient structural strength and rigidity the element may comprise two structural beams arranged at two longer edges of the element.
  • the pliable noise absorbing core material is mineral wool, such as stone wool, glass wool or the like.
  • Mineral wool, and in particular stone wool, has shown excellent noise absorbing and/or reducing properties.
  • the density of the mineral wool should be between 100 and 200 kg/m 3 , preferably between 120 and 180 kg/m 3 , more preferably between 130 and 150 kg/m 3 , most preferably approximately 140 kg/m 3 . At these densities the noise absorbing and/or reducing properties have shown to fulfil most requirements of noise absorbing/reducing.
  • the pliable noise absorbing core material of stone wool has a binder content of between 2 and 10 weight-%, preferably between 3 and 8 weight-%, more preferably between 4 and 6 weight-%.
  • the pliable noise absorbing core material is substantially fully exposed on at least one side of the element.
  • the pliable noise absorbing core material may, however, be covered by a protective layer at least on the main surfaces of the noise absorbing element.
  • the protective layer protects the pliable noise absorbing core material from being damaged by flying stones, birds and other animals.
  • the protective layer is preferably a small-meshed PE net.
  • the noise absorbing element may comprise at least one noise reducing plate member extending between the two longer edges of the element. It is well known that such a plate member increases the noise reduction substantially.
  • the noise reducing plate member need only to be arranged at one side of the noise absorbing element, namely on the side that does not face the source of noise.
  • the noise screen is to absorb/reduce noise from both sides it is preferred to arrange the pliable noise absorbing core material on both sides of the noise reducing plate member.
  • the noise reducing plate member may be connected to the at least one structural beam of the element. Thereby the structural integrity of the noise absorbing element can be increased.
  • the noise absorbing element is preferably rectangular having a length between 2m and 6m, preferably between 3m and 5m; a width between 0.2m and 1.5m, preferably between 0.4m and 0.8m; and a thickness between 5 and 50 cm, preferably between 10 and 25 cm. With these dimensions each noise absorbing element can be handled without heavy equipment which reduces the mounting costs.
  • the invention also relates to a noise screen comprising a plurality of noise absorbing elements as described above.
  • the noise screen comprises a plurality of vertical or horizontal beams with the noise absorbing elements arranged between the beams and connected thereto, the main surfaces of the noise absorbing elements being substantially vertical.
  • the noise absorbing elements are made as simple as possible the visual appearance thereof has not been in focus. Thus, it is often desired to provide an outer decorative covering on at least one side of the noise screen.
  • the outer decorative covering is preferably interconnected with structural parts of the noise absorbing elements, such that the integrity of the noise screen as a whole is increased.
  • the outer decorative covering may be made from metal, wood, plastics, textile or any combination thereof.
  • the noise screen comprises a plurality of vertical H beams with the ends of the noise absorbing elements being arranged between the flanges of the H beams. This provides a simple structure that can be easily mounted on the site of the noise screen.
  • Figure 1 shows a noise screen 1 made in accordance with one aspect of the invention.
  • the noise screen 1 comprises a plurality of vertical beams 2 that defines sections for noise absorbing elements 3 mounted between the vertical beams 2.
  • each section comprises four noise absorbing elements 3 stacked on top of each other.
  • the number of noise absorbing elements 3 may of course be varied in dependency of the desired height of the noise screen 1 as well as the height of each noise absorbing element 3.
  • Figure 1 also shows a decorative covering 4 in the form of a perforated plate provided on one side of the noise screen 1. For illustrative reasons one of the noise absorbing elements 3 and the decorative covering 4 have been partly cut away.
  • the noise screen 1 is erected by first mounting the vertical beams 2 in the ground in a safe manner. This may be done either by forcing one end of the vertical beams 2 into the ground, embedding one end of the vertical beams 2 in concrete or by firmly securing one end of the vertical beams 2 to a concrete block that has been dug into the ground. This detail is not a part of the present invention and will not be described any further. A person skilled in the art can easily specify the best way to mount the vertical beams 2 for a given noise screen 1.
  • the vertical beams 2 are so-called H-beams, i.e. beams 2 having an H-shaped cross-section comprising a body part 5 and two flanges 6.
  • the noise absorbing elements 3 are mounted between the vertical beams 2 by positioning the ends of the noise absorbing elements 3 between the flanges 6 of each vertical beam 2.
  • the ends of the noise absorbing elements 3 are preferably secured to at least one of the flanges 6 of each vertical beam 2.
  • a "ground element” 7 may be mounted in order to ensure a straight lower surface for the lowermost noise absorbing element 3.
  • the ground element 7 may be concrete cast on the site, or it can be a beam of concrete or steel mounted between the vertical beams 2 before the lowermost noise absorbing element 3 is mounted.
  • each noise absorbing element 3 has sufficient strength and rigidity to withstand normal wind load transversely to the main surface 8 thereof.
  • the noise wall 1 consists only of the vertical beams 2 and noise absorbing elements 3 - plus any relevant fittings for securing the vertical beams 2 to the ground and the noise absorbing elements 3 to the vertical beams. It is essential to the invention that no further structural parts need to be included in order to ensure a firm and stable noise screen 1.
  • the decorative covering 4 shown as a perforated plate in Figure 1 serves primarily a decorative purpose and no structural performances of the noise screen 1 is based on it being present.
  • the pliable noise absorbing core material 9 has as the basic function to absorb noise as it is known from prior art noise absorbing elements where the pliable noise absorbing core material is arranged within an outer casing that provides structural strength to the noise absorbing element.
  • the pliable noise absorbing core material 9 has an additional function, namely to be an essential structural part of the noise absorbing element 3, such that no outer casing is needed.
  • the pliable noise absorbing core material 9 consists of mineral wool, preferably stone wool. This material has excellent noise absorbing properties and by using a density of the stone wool of about 140 kg/m 3 the noise absorbing and even noise reducing properties are very good. In fact, by having this density it is in many applications possible to make the noise absorbing element 3 as thin as 120 mm and still fulfil the requirement of noise absorbing and reducing. In case higher noise absorbing and/or reducing is required the thickness of the noise absorbing element 3 can be increased and/or a plate element may be included (see below).
  • a noise absorbing element 3 made primarily of stone wool can be made with sufficient rigidity and strength if the span between to vertical beams 2 is not too large. However, often the span between to vertical beams 2 will be 3 to 4 metres or even up to 6 metres. If this is the case it is necessary to strengthen the noise absorbing element 3 against deflection due to wind load transversely to the main surface 8 of the noise absorbing element 3. In a preferred embodiment this is done by incorporating at least one structural beam 10 that extends from one end of the noise absorbing element 3 to the other. The structural beam 10 must have a big resistance against deflection in a direction transversely to the main surface 8 of the noise absorbing element 3. This is accomplished by ensuring that it has a certain extent in the transverse direction and at the same time ensuring that it is firmly connected to the noise absorbing core material 10 such that twisting of the structural beam 10 is prohibited.
  • the structural beam 10 In a first embodiment shown in Figure 2 only one structural beam 10 is arranged at each noise absorbing element 3.
  • the structural beam 10 consists of an H-beam that is arranged at one of the longer edges 11 of the noise absorbing element 3 and is firmly secured to the pliable noise absorbing core material 9. This may be ensured by gluing the body part 12 of the H-beam to the pliable noise absorbing core material 9 or by any other suitable means.
  • the outer flanges 13 of the H-beam may extend into the noise absorbing core material 9 or they may be positioned externally of the pliable noise absorbing core material 9 as shown.
  • the structural strength against deflection transversely to the main surface 8 of the noise absorbing element 3 is achieved by arranging a structural beam 20 at each of the longer edges 11 of the noise absorbing element 3.
  • Figure 3 shows a noise absorbing element 3, wherein the pliable noise absorbing core material 9 constitutes an essential structural part of the noise absorbing element 3 supported by the two structural beams 20.
  • Each of the structural beams 20 is C-shaped with the ends of the C extending into the pliable noise absorbing core material 9 to ensure a firm connection between the structural beams 20 and the pliable noise absorbing core material 9.
  • Glue may be applied between the structural beams 20 and the pliable noise absorbing core material 9.
  • one of structural beams 20 is provided with an outwardly protruding tongue 21 which is complementary with a groove 22 provided in the other structural beam 20. Thereby a good connection between stacked noise absorbing elements 3 is ensured.
  • a noise reducing plate member 23 is provided on the side facing away from the source of noise.
  • the plate member 23 may be made of any suitable material such as steel, aluminium, plywood, etc.
  • the plate member 23 may be secured to the pliable noise absorbing core material 9 as shown and/or to the structural beams 20.
  • the structural beams 10,20 may be made of any suitable material, such as steel or aluminium. Plastics or a fibre reinforced material could also be an option. They may be standard beams, or they may be tailor-made for the specific purpose. Specifically, they may be extruded aluminium profiles, whereby it is possible to incorporate various flanges or even cavities when seen in cross-section.
  • Figure 4 shows yet another embodiment of a noise absorbing element 3 according to the invention.
  • the noise absorbing element 3 is provided with structural beams 30 that are made of the same material as the pliable noise absorbing core material 9 in a compressed or hardened form. If the pliable noise absorbing core material 9 is stone wool the structural beams 30 are made by compressing the stone wool to a very high density, such as 300-500 kg/m 3 . Three structural beams 30 are provided in the embodiment shown, but the number may of course be adjusted in accordance with the strength requirements.
  • the decorative outer covering 4 shown in Figure 1 serves primarily a decorative purpose and no structural properties are based on it being present. This also means that the noise screen 1 may be erected without any decorative covering 4 if desired. Moreover, since mounting of a decorative covering 4 is optional it is possible to choose almost any kind of covering. Thus, it may be desirable to omit any decorative covering 4 towards the source of noise, which might be a traffic road, whereas the opposite side, which might be facing a dwelling area, is provided with a decorative covering 4. However, in most cases it will be desirable to have a decorative covering 4 on each side of the noise screen 1.
  • a decorative covering 4 may be connected to the vertical beams 2 in any suitable manner, e.g. by screws. It may also be connected to the structural beams 10,20,30 of the noise absorbing elements 3 between the vertical beams 2 in order to ensure integrity between the noise absorbing elements 3 and the decorative covering 4. This interconnection between the noise absorbing elements 3 and the decorative covering 4 will in many instances also provide further strength and rigidity to the noise screen 1 as a whole. It is important, however, that the stability and strength of the noise screen 1 is not dependent on the presence of the decorative covering 4.
  • a decorative covering 4 is provided on the side facing the source of noise it preferably has a perforating degree of at least 35%, i.e. at least 35% of the pliable noise absorbing core material 9 is exposed to noise.
  • the decorative covering 4 may be made of any suitable material. Examples are perforated wooden boards, perforated aluminium or galvanized steel plates, boards of compressed stone wool, nets of steel rods, woven willow branches, etc.
  • a protective layer on the main surface of each noise absorbing element 3.
  • protective layers are a thin layer of non-woven glass fibres, a small-meshed PE-net 24 (see Figure 3), etc.
  • the invention has been described with reference to three different embodiments of a noise absorbing element comprising mineral wool as the pliable noise absorbing core material.
  • the invention is of course not restricted to these specific embodiments.
  • the invention relates to any noise absorbing elements and noise screens that comprise a pliable noise absorbing core material that constitutes an essential structural part of the noise absorbing element.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
EP05388081A 2005-09-29 2005-09-29 Schallabsorbierendes Element und Lärmschutzschirm mit einem solchen Element Withdrawn EP1770216A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05388081A EP1770216A1 (de) 2005-09-29 2005-09-29 Schallabsorbierendes Element und Lärmschutzschirm mit einem solchen Element
EP06776006A EP1929092A1 (de) 2005-09-29 2006-09-28 Lärmabsorbierendes element und lärmschutzschirm mit solchen elementen
PCT/DK2006/000531 WO2007036231A1 (en) 2005-09-29 2006-09-28 A noise absorbing element and a noise screen with such elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05388081A EP1770216A1 (de) 2005-09-29 2005-09-29 Schallabsorbierendes Element und Lärmschutzschirm mit einem solchen Element

Publications (1)

Publication Number Publication Date
EP1770216A1 true EP1770216A1 (de) 2007-04-04

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP05388081A Withdrawn EP1770216A1 (de) 2005-09-29 2005-09-29 Schallabsorbierendes Element und Lärmschutzschirm mit einem solchen Element
EP06776006A Withdrawn EP1929092A1 (de) 2005-09-29 2006-09-28 Lärmabsorbierendes element und lärmschutzschirm mit solchen elementen

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06776006A Withdrawn EP1929092A1 (de) 2005-09-29 2006-09-28 Lärmabsorbierendes element und lärmschutzschirm mit solchen elementen

Country Status (2)

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EP (2) EP1770216A1 (de)
WO (1) WO2007036231A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2310587A1 (de) * 2008-06-17 2011-04-20 Rockwool International A/S Isoliergebäudesystem für eine gebäudestruktur
JP2014134038A (ja) * 2013-01-11 2014-07-24 Ig Kogyo Kk 透光性電波吸収パネルの取付構造

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013273747B2 (en) * 2013-12-20 2015-11-26 Aus Group Alliance Pty Ltd Plastic panel and structures using the same

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EP0347966A1 (de) * 1988-06-21 1989-12-27 Beheermaatschappij Op De Kaai B.V. Entlang Verkehrswegen zu erstellender Schallschutzschirm
EP0385087A2 (de) 1989-03-03 1990-09-05 Acouver S.A. Schallschluck- und -isolierungswand
EP0393735A1 (de) 1989-03-17 1990-10-24 Rockwool/ Grodan B.V. Mauer, worauf Pflanzen wachsen können
WO1998058127A1 (en) 1997-06-13 1998-12-23 Richard Laurance Lewellin Acoustic barrier
JPH11293633A (ja) * 1998-04-10 1999-10-26 Kam:Kk 吸音パネル
JP2000045414A (ja) * 1998-07-30 2000-02-15 Nitto Boseki Co Ltd 音響パネル
FR2785922A1 (fr) * 1998-11-17 2000-05-19 Eurocoustic Cloison thermoacoustique
EP1032733A1 (de) 1997-10-28 2000-09-06 Rockwool International A/S Lärmschutzwand
EP1120496A2 (de) 2000-01-15 2001-08-01 Winfried Kneussle Schallschutzwand
JP2002123259A (ja) * 2000-10-13 2002-04-26 Nippon Sheet Glass Environment Amenity Co Ltd 防音パネル
EP1455018A1 (de) * 2003-03-06 2004-09-08 Maas GmbH Lärmschutzwand
EP1479825A1 (de) * 2003-05-20 2004-11-24 Loharens Ing.-Bau GmbH Lärmschutzwandelement

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Publication number Priority date Publication date Assignee Title
EP0347966A1 (de) * 1988-06-21 1989-12-27 Beheermaatschappij Op De Kaai B.V. Entlang Verkehrswegen zu erstellender Schallschutzschirm
EP0385087A2 (de) 1989-03-03 1990-09-05 Acouver S.A. Schallschluck- und -isolierungswand
EP0393735A1 (de) 1989-03-17 1990-10-24 Rockwool/ Grodan B.V. Mauer, worauf Pflanzen wachsen können
WO1998058127A1 (en) 1997-06-13 1998-12-23 Richard Laurance Lewellin Acoustic barrier
EP1032733A1 (de) 1997-10-28 2000-09-06 Rockwool International A/S Lärmschutzwand
JPH11293633A (ja) * 1998-04-10 1999-10-26 Kam:Kk 吸音パネル
JP2000045414A (ja) * 1998-07-30 2000-02-15 Nitto Boseki Co Ltd 音響パネル
FR2785922A1 (fr) * 1998-11-17 2000-05-19 Eurocoustic Cloison thermoacoustique
EP1120496A2 (de) 2000-01-15 2001-08-01 Winfried Kneussle Schallschutzwand
JP2002123259A (ja) * 2000-10-13 2002-04-26 Nippon Sheet Glass Environment Amenity Co Ltd 防音パネル
EP1455018A1 (de) * 2003-03-06 2004-09-08 Maas GmbH Lärmschutzwand
EP1479825A1 (de) * 2003-05-20 2004-11-24 Loharens Ing.-Bau GmbH Lärmschutzwandelement

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Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 01 31 January 2000 (2000-01-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 08 5 August 2002 (2002-08-05) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2310587A1 (de) * 2008-06-17 2011-04-20 Rockwool International A/S Isoliergebäudesystem für eine gebäudestruktur
EP2310587B1 (de) * 2008-06-17 2017-09-20 Rockwool International A/S Isoliergebäudesystem für eine gebäudestruktur
JP2014134038A (ja) * 2013-01-11 2014-07-24 Ig Kogyo Kk 透光性電波吸収パネルの取付構造

Also Published As

Publication number Publication date
WO2007036231A1 (en) 2007-04-05
EP1929092A1 (de) 2008-06-11

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