EP1133604A1 - Element sous forme de plaque - Google Patents

Element sous forme de plaque

Info

Publication number
EP1133604A1
EP1133604A1 EP99968695A EP99968695A EP1133604A1 EP 1133604 A1 EP1133604 A1 EP 1133604A1 EP 99968695 A EP99968695 A EP 99968695A EP 99968695 A EP99968695 A EP 99968695A EP 1133604 A1 EP1133604 A1 EP 1133604A1
Authority
EP
European Patent Office
Prior art keywords
plate
holes
perforated
component according
wood
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.)
Ceased
Application number
EP99968695A
Other languages
German (de)
English (en)
Inventor
Helmut Fuchs
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP1133604A1 publication Critical patent/EP1133604A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/8485—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the opening being restricted, e.g. forming Helmoltz resonators
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/8495—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the openings going through from one face to the other face of the element

Definitions

  • the invention relates to a plate-shaped component made of wood, plastic or plasterboard, according to the preamble of claim 1.
  • a sound-absorbing glass or transparent synthetic glass component is known, which is installed as a facing shell at a distance from a window, facade or roof component, sound in a by the geometric dimensions of the distance, the thickness of the facing shell , the size and number of holes in the microperforation and the frequency range determined by the material of the facing shell.
  • the same microperforated plate can also be designed as a closed, one-sided absorbent cassette or a bilaterally absorbent backdrop in any shape, one or more layers microperforated.
  • DE 44 37 196 also discloses a sound absorber according to DE 43 15 759, in which two plates with large holes are arranged one on top of the other in such a way that small holes form a microperforation between the two plates.
  • This invention is based on the idea of building micro-perforated components from any materials that resist micro-perforation by drilling, lasering or punching.
  • the microperforation can also be varied within wide limits by inserting fine-grained spacing materials between the roughly perforated plates or by shifting the roughly perforated plates lying directly on top of one another.
  • a sound-absorbing metal cassette is also known as a suspended false ceiling, in which one or more micro-perforated sheets arranged one behind the other at a distance extract their energy from the sound waves incident on the room side by the air in the holes as a mass together with the air between the sheets and the raw ceiling forms a complex mass-spring system with inherent friction in the small holes.
  • DE 197 54 107 discloses a sound absorber consisting of microperforated foils or thin plates, several foils or plates being provided in any arrangement with respect to one another and being suspended from the ceiling of a room or horizontally or obliquely in the room.
  • the small holes are accessible to the sound waves from both sides of the foils or thin plates and can thus develop their damping effect even without the excitation of a resonance mechanism.
  • DE 197 10 920 and 197 30 355 an effect of overflow or flow through the microperforated foils or plates, which reinforces the sound absorption in the small holes, is also advantageously used.
  • Gypsum plasterboard or wood or chipboard with relatively large holes are also known, behind which sound-absorbing material, e.g. Glass or rock wool, attached or in the case of a ceiling covering.
  • the proportion of holes in the holes is usually around 30 - 90%, but can also be less down to 10%.
  • Microperforated holes in thick plates e.g. Drilling 6 - 30 mm is too complex, and the small holes of about 1 mm would "grow" again with wood or plasterboard, since the wood fibers would expand into the inside of the hole and with plasterboard the fine plaster would clog the holes.
  • the object of the invention is to provide a component which allows the use of microperforation at low cost when using a thick plate. This object is achieved by the plate-shaped component according to claim 1. Advantageous embodiments of this component are characterized in the subclaims.
  • the present invention is concerned with the realization of a microperforation in relatively thick (approx. 6-30 mm) panels made of wood, plastic or plasterboard, either as panels or cassettes in the manner of a wall paneling or suspended ceiling or as a seamless facing shell or absorb part of a double-walled stud wall.
  • Figure 1 shows z. B. how the large holes taper themselves in the manner of boreholes that were not completely carried out, according to claim 2, in one side into smaller holes with, depending on the depth of the holes, adjustable hole size.
  • This type of embodiment of the invention can also be made by first drilling the holes with a large diameter drill up to e.g. about 1 mm below the surface and then completely drilled with the diameter of the microbore.
  • this variant shows a solution that may be too expensive, since, based on the area affected by the sound, the proportion of the perforated area of the microperforated holes is only less than 4%, advantageously approximately 2-1%, and with this variant, too many holes with the larger diameter are drilled have to.
  • Figure 2 shows another, cheaper version, in which a micro-perforated film, plate with the actually desired hole pattern is attached to the "rough" perforated plate (with large holes and a hole area percentage of 10 - 90%) in such a way that the remaining hole percentage the microperforated layer just gives the hole fraction required for absorption.
  • This variant combines easily producible micro-perforated foils or thin plates made of e.g. B. plastic films, plywood or fabric with also easy to manufacture thick perforated plates with a hole percentage of 20 to 60%.
  • Figure 3 shows a variant in which the thick plate carrying the actual microperforated component has been replaced by a grid made of rods or braid that also supports the plate.
  • modified components are arranged at a distance from a reverberant wall or ceiling, they can develop an absorption as in the components described above.
  • perforated panels made of wood, wood chip, pressed cardboard or plasterboard are turned into sound absorbers in front of a hard-walled rear wall by introducing damping material, mostly artificial mineral fibers, into the air space.
  • damping material mostly artificial mineral fibers
  • a fleece or fabric 5 with a suitable flow resistance can be placed or stretched on one side over its large holes (Fig. 4).
  • All these known perforated plate sound absorbers have the disadvantage that the porous materials already during assembly, but also later 'through the air exchange z. B. between the suspended ceiling cavity and the room to be dampened gradually. This way, the rough hole pattern remains visible even if the porous layer has been turned towards the room.
  • the micro-perforated surfaces according to Figures 1 to 3 give the room the visual impression of a closed component surface if the holes have a diameter of less than 2 mm, preferably less than 1 mm.
  • Components according to Figures 1 to 3 can also be easily cleaned and painted on their side facing the room.
  • components according to Figures 1 to 3 can also be glued in addition and after their permanent installation on any substructure in front of walls or ceilings according to Figure 5 with a fleece, a fabric or a porous wallpaper so that the small holes behind them are preserved, but the joints between such adjacent components are completely covered by this surface treatment.
  • a component as outlined in Figure 5 would have the advantage over the conventional perforated plate absorbers with fibrous or porous damping material that its absorption spectrum, as described in the cited patents, can only be adjusted precisely according to the respective acoustic requirements by the geometric parameters. You can z. B. achieve that the higher frequency components important for speech intelligibility are less absorbed in the room, but the often disturbing lower frequency components are swallowed more than in the porous or fibrous sound absorbers.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne un élément sous forme de plaque, comprenant une plaque perforée consistant en un matériau solide, tel que du métal, du bois, du bois comprimé, du carton comprimé, du plastique ou du plâtre. Cet élément se caractérise en ce qu'il est prévu sur des surfaces de la plaque (2), un film microperforé ou une fine plaque (3). Dans un autre mode de réalisation, l'invention se caractérise en ce que les trous (1a) pratiqués dans la plaque se présentent de manière à déboucher dans chaque cas dans une microperforation sur une des faces de la plaque (1).
EP99968695A 1998-09-02 1999-08-31 Element sous forme de plaque Ceased EP1133604A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19839973A DE19839973A1 (de) 1998-09-02 1998-09-02 Plattenförmiges Bauelement
DE19839973 1998-09-02
PCT/EP1999/006386 WO2000014353A1 (fr) 1998-09-02 1999-08-31 Element sous forme de plaque

Publications (1)

Publication Number Publication Date
EP1133604A1 true EP1133604A1 (fr) 2001-09-19

Family

ID=7879553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99968695A Ceased EP1133604A1 (fr) 1998-09-02 1999-08-31 Element sous forme de plaque

Country Status (4)

Country Link
US (1) US6675551B1 (fr)
EP (1) EP1133604A1 (fr)
DE (1) DE19839973A1 (fr)
WO (1) WO2000014353A1 (fr)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE221006T1 (de) * 1999-05-06 2002-08-15 Faist Automotive Gmbh & Co Kg Schallabschirmelement, verwendung desselben und verfahren zu dessen herstellung
FR2826608B1 (fr) * 2001-06-29 2003-10-03 Aries Ind Structure Ais Element de decoration, comme par exemple un enjoliveur pour vehicules automobiles
FR2832442A1 (fr) * 2001-11-19 2003-05-23 Boff Frederic Dalle de faux plafond composite et platre
DE10250665B4 (de) * 2002-09-10 2004-08-26 Weinmann Holzbausystemtechnik Gmbh Verfahren zur Herstellung von Sandwich-Wandelementen
DE102004025352A1 (de) * 2004-05-19 2005-12-22 Schako Klima Luft Ferdinand Schad Kg Zweigniederlassung Kolbingen Wand
ES2245240B1 (es) * 2004-06-03 2007-03-16 Consejo Sup. Investig. Cientificas. Unidades de insercion microperforadas para su uso como absorbentes acusticos.
EP1630311B1 (fr) 2004-08-25 2011-08-10 Sabine Keggenhoff Dispositif d'absorption acoustique, en particulier pour le montage sur un plafond ou mur
DE102005022807B3 (de) * 2005-05-12 2007-02-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Schall absorbierendes Bauteil und Verwendung
US7703243B2 (en) * 2006-02-13 2010-04-27 Usg Interiors, Inc. Ceiling tile construction
EP1820915A1 (fr) * 2006-02-20 2007-08-22 Gerhard Kosche Procédé de fabrication d'un panneau acoustique de construction et paneau associé
US20070193175A1 (en) * 2006-02-21 2007-08-23 Ta-Chung Hao Structure of decoration acoustic board
EP1876308B1 (fr) * 2006-07-07 2009-05-27 Akustik & Raum AG Dispositif absorbant le bruit
DE102006041337A1 (de) 2006-09-01 2008-03-20 Lüderitz, Hartmut F. Plattenförmiges Schall absorbierendes Bauelement
DE102007042251B4 (de) * 2007-09-06 2018-09-20 Erich R. Vogl Verfahren zur Herstellung einer abgehängten Decke
EP2055850A1 (fr) * 2007-11-05 2009-05-06 Rockwool International A/S Panneau à absorption acoustique fourni avec une forme de conception décorative et procédé et appareil pour la fabrication du panneau
CN102046895B (zh) * 2008-03-21 2012-07-04 阿什工业技术有限责任公司 声衰减建筑材料和系统
US9266778B2 (en) * 2008-11-21 2016-02-23 Usg Interiors, Llc Multi-layer acoustical plaster system
DE102009041099A1 (de) * 2009-02-04 2010-09-02 Eichhorn Gmbh & Co. Kg Fußbodenpaneel sowie Verfahren und Vorrichtung zu dessen Herstellung
ES2561481T3 (es) * 2009-07-24 2016-02-26 Ckm Building Material Corp. Método para hacer micro-agujeros en placa de metal
CN102792101A (zh) * 2009-12-31 2012-11-21 西格里碳素欧洲公司 具有加热或冷却调节器的天花板元件或壁元件
EP2540926B1 (fr) * 2011-07-01 2013-11-27 akustik & innovation gmbh Elément absorbant acoustique et son procédé de fabrication
CN103072589B (zh) * 2011-12-13 2016-03-30 白国锋 用于高速列车行李架的微穿孔板腔体共振吸声装置
CN103085826B (zh) * 2011-12-13 2016-06-29 隋富生 用于高速列车天花板、裙板的微穿孔弧形板吸声装置
CH706394A2 (de) 2012-04-26 2013-10-31 Akustik & Raum Ag Schallabsorbierendes Element.
DE102012105321A1 (de) * 2012-06-19 2013-12-19 Knauf Gips Kg Schallabsorbierende Platte zur Raumgestaltung sowie zugehöriges Herstellungsverfahren
US8925677B2 (en) 2012-06-27 2015-01-06 Usg Interiors, Llc Gypsum-panel acoustical monolithic ceiling
US8684134B2 (en) 2012-06-27 2014-04-01 Usg Interiors, Llc Gypsum-panel acoustical monolithic ceiling
US8770345B2 (en) * 2012-06-27 2014-07-08 Usg Interiors, Llc Gypsum-panel acoustical monolithic ceiling
US9649831B2 (en) * 2012-10-05 2017-05-16 Dirtt Environmental Solutions, Ltd Perforated acoustic tiles
EP2913315A1 (fr) * 2014-02-28 2015-09-02 Acoustic Group OY Procédé de fabrication d'un élément acoustique et élément acoustique de celui-ci
RU2655081C1 (ru) * 2014-05-15 2018-05-23 Кнауф Гипс Кг Звукопроницаемая облицовка для акустических гипсокартонных плит
EP3070217A1 (fr) 2015-03-20 2016-09-21 Triplaco NV Ensemble d'absorption sonore
US10982433B2 (en) * 2018-06-28 2021-04-20 Usg Interiors, Llc Monolithic acoustical system
CN108867904A (zh) * 2018-07-06 2018-11-23 长春理工大学 在低频频段具有高吸声系数的薄型多层吸声板
US20220018121A1 (en) * 2018-12-21 2022-01-20 Knauf Gips Kg Panel, system, and use for concealing sound absorbing surface and method of producing of the same
CN111335197A (zh) * 2020-04-20 2020-06-26 深圳市双禹王声屏障工程技术有限公司 一种抑制型隔声屏

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE605784C (de) 1934-11-17 Gunter Armin Heimbold Warmwasserbereiter mit OElfeuerung
US1937889A (en) * 1931-10-06 1933-12-05 Howard Thomas Clark Sound absorbing material
US3769767A (en) * 1971-07-09 1973-11-06 Short Brothers & Harland Ltd Composite panel structures
US3991848A (en) * 1974-08-16 1976-11-16 Frigitemp Acoustical board
SE420750B (sv) * 1978-11-17 1981-10-26 Ingemanssons Ingenjorsbyra Ab Ljudisolerande byggnadselement med stor styvhet
US4539244A (en) * 1979-08-06 1985-09-03 Rohr Industries, Inc. Honeycomb noise attenuation structure
US4433021A (en) * 1982-09-22 1984-02-21 Rohr Industries, Inc. Sound attenuation sandwich panel including barrier material for corrosion control
SE461048B (sv) * 1987-03-02 1989-12-18 Gyproc Ab Perforerad, ljudabsorberande skiva
DE3800656A1 (de) 1988-01-13 1989-08-03 Freudenberg Carl Fa Hydraulisch daempfende huelsengummifeder
US5009043A (en) * 1990-07-12 1991-04-23 Herman Miller, Inc. Acoustic panel
DE9300152U1 (fr) * 1993-01-08 1993-03-11 Wilhelmi Werke Gmbh & Co Kg, 6335 Lahnau, De
DE4312885A1 (de) 1993-04-20 1994-10-27 Fraunhofer Ges Forschung Unterdecke
JPH0679808U (ja) 1993-04-23 1994-11-08 日東紡績株式会社 吸音材の表面保護材
DE4315759C1 (de) 1993-05-11 1994-05-05 Fraunhofer Ges Forschung Schallabsorbierendes Glas- oder transparentes Kunstglasbauteil
DE4437196C1 (de) 1993-05-11 1996-03-07 Fraunhofer Ges Forschung Schallabsorbierendes Glas- oder transparentes Kunstglasbauteil
DE9406574U1 (de) 1994-04-20 1995-01-26 Pittsburgh Corning Gmbh Bauelement zur Schalldämpfung
US5832685A (en) * 1995-08-03 1998-11-10 Hermanson; Lars S. Self-supporting interior surface panel
US5765334A (en) * 1997-02-12 1998-06-16 Vitous; Miroslav L. Method of manufacturing porous building materials
DE19730355C1 (de) 1997-07-15 1999-03-18 Fraunhofer Ges Forschung Schallabsorber in Lüftungskanälen
DE29713040U1 (de) * 1997-07-23 1997-11-06 Richter Furniertechnik Gmbh & Verbundplatte
DE19754107C1 (de) 1997-12-05 1999-02-25 Fraunhofer Ges Forschung Schallabsorber
US6244378B1 (en) * 1998-12-11 2001-06-12 Owens Corning Fiberglas Technology, Inc. Dual sonic character acoustic panel and systems for use thereof
AU6623800A (en) * 1999-08-16 2001-03-13 John R. Woods More controllable acoustic spray patch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0014353A1 *

Also Published As

Publication number Publication date
US6675551B1 (en) 2004-01-13
WO2000014353A1 (fr) 2000-03-16
DE19839973A1 (de) 2000-03-23

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