EP3373290B1 - Absorbeur acoustique et utilisation d'un tel absorbeur acoustique - Google Patents

Absorbeur acoustique et utilisation d'un tel absorbeur acoustique Download PDF

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Publication number
EP3373290B1
EP3373290B1 EP18166394.9A EP18166394A EP3373290B1 EP 3373290 B1 EP3373290 B1 EP 3373290B1 EP 18166394 A EP18166394 A EP 18166394A EP 3373290 B1 EP3373290 B1 EP 3373290B1
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EP
European Patent Office
Prior art keywords
acoustic absorber
recesses
carrier
absorber according
absorber
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.)
Active
Application number
EP18166394.9A
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German (de)
English (en)
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EP3373290A1 (fr
Inventor
Wilsingh Wilson
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Individual
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Individual
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Classifications

    • 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
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/02—Shelves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/20—Furniture panels or like furniture elements
    • A47B96/205—Composite panels, comprising several elements joined together
    • 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
    • G10K11/162—Selection of materials
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2220/00—General furniture construction, e.g. fittings
    • A47B2220/13—Sound or noise reduction or dampening, e.g. built in via the furniture panels
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/849—Groove or slot type openings

Definitions

  • the invention relates to an acoustic absorber according to the preamble of claim 1 and a use of such an acoustic absorber according to claim 13.
  • Acoustic absorbers for absorbing sound waves or for the acoustic design of rooms, which are designed in the form of a plate provided with openings, are known from the prior art.
  • the DE 43 32 856 A1 a perforated metal plate coated with a porous layer of lacquer as a sound absorber.
  • an acoustic absorber is known which has a plurality of openings which are covered by a surface layer provided with pores.
  • the problem on which the invention is based is to enable sound absorption that can be provided as simply as possible and yet as efficient as possible.
  • the coating takes place in particular on a "visible side" of the carrier, i.e. a side of the carrier that is visible after the absorber has been installed, i.e. facing away from an installation location (e.g. a wall).
  • a visible side of the carrier i.e. a side of the carrier that is visible after the absorber has been installed, i.e. facing away from an installation location (e.g. a wall).
  • the visible side of the absorber is also the side that is to be turned towards a sound source.
  • the coating is provided on several sides, in particular on sides that are applied to one another, of the carrier.
  • a variant not claimed, according to which the sections of the coating that cover the recesses are designed to be air-impermeable, can be used in particular when the area-related mass of the coating is small.
  • the air-impermeable design of the coating segments has the particular advantage that the result is an essentially homogeneous, flat surface that can be easily cleaned, for example.
  • the lacquer layer in each case forms at least two segments that are separate from one another in the region of the cutouts
  • the segments can each be designed to be at least substantially closed. This means in particular that the segments (or, for example, the entire coating) do not have any open-pored lacquer material.
  • the recesses run like a slot, ie they have a longitudinal extent that is greater (for example three times as large) than their width.
  • the openings in the lacquer layer are each approximately in the form of a gap running transversely to the slots, the gaps each having a width of 0.1-0.2 mm, for example.
  • This particular structure of the lacquer coating in the area of the cutouts can be achieved in particular by the design of the edges of the cutouts and / or the Dimensioning of the recesses are generated.
  • the paint layer is created (for example in the form of a powder coating or dip coating), the paint is pulled somewhat into the recesses due to capillary forces and tears open across the recesses, creating the separate segments of the sections of the paint coating that cover the recesses.
  • closure elements are introduced into the recesses, which serve to stabilize the lacquer coating in the area of the recesses. The closure elements can remain in the recesses after the lacquer coating has been produced, or they can also be removed.
  • cutouts are at least approximately circular in cross-section, i.e. as bores.
  • recesses go through the entire carrier.
  • the recesses are arranged in a regular pattern and / or are used, for example, to display image information, in particular for the pictorial display of an object.
  • the recesses (in particular in the manner of a perforation) are arranged along a plurality of lines (contour lines) which represent the contours of an object.
  • the recesses do not have to have the same shape, size and / or geometry.
  • the distances between adjacent cutouts to vary.
  • several (e.g. different) lacquer coatings to be arranged one above the other, with each of the lacquer layers having recesses.
  • the cutouts in the various layers of lacquer are in particular arranged in such a way that they at least partially overlap one another.
  • the carrier can be designed to be at least substantially planar.
  • the invention is of course not restricted to a specific type of carrier. It is also conceivable, for example, for the carrier to be arched, folded or stepped at least in sections.
  • the basic shape of the carrier in plan view) does not have to be rectangular. Rather, in principle, any basic shape can be used (e.g. round or jagged).
  • the carrier is, for example, a metal or plastic plate.
  • the invention also relates to the use of an acoustic absorber designed as described above as a surface cladding element, as a ceiling or wall element or as part of a piece of furniture.
  • the invention also relates to an item of furniture with an acoustic absorber configured as described above.
  • the furnishing is e.g. around a shelf (such as a sales or presentation shelf).
  • a shelf such as a sales or presentation shelf.
  • the floors of the shelf and / or at least one rear wall element are each formed by an acoustic absorber according to the invention. It is also possible that all floors and the rear wall are each formed by an absorber according to the invention.
  • Figure 1 shows a plan view of a visible surface 21 of a carrier 2 of an acoustic absorber 1 according to the invention.
  • the carrier 2 has a plurality of cutouts in the form of slots 22, which cause an increased energy dissipation of sound waves occurring on the absorber 1.
  • the visible surface 21 of the carrier 2 is provided with a lacquer coating 3 which, with sections 31, covers at least some of the slots 22.
  • the sections 31 of the lacquer coating 3 are drawn somewhat into the respective slot 22 due to the effect of capillary forces.
  • the sections 31 each have a plurality of segments 311 which are separated from one another by openings in the form of gaps 312 running transversely to the longitudinal extent of the slots 22.
  • the gaps 312 reduce the size of the slits 22 in their upper region, as a result of which the dissipation of sound wave energy is increased.
  • the gaps 312 arise in particular during the production of the lacquer layer 3, the number of gaps depending approximately on the width of the slots 22 and / or the nature of the edges of the slots. It should be noted that column 312, as in Fig. 1 shown need not necessarily have a constant width. In the present case, the gaps 312 each widen from their center (in the center of the slots 22) outwards (towards the side walls of the slots 22).
  • recesses with a different geometry, for example circular bores or star-shaped openings, can also be used.
  • the recesses in particular the slots 22
  • the recesses can in principle be produced in any desired manner, for example cut, split, punched, sintered or etched.
  • the carrier 2 is in particular a material plate (e.g. a metal plate).
  • the carrier is a film, a rod arrangement or wires with joints (as recesses), fibers, threads with joints or woven fabrics, fleeces, knitted fabrics, knitted fabrics, in which the joint spacing (i.e. the spacing of the fibers or threads) be chosen so that they can be bridged by the lacquer coating 3 (produced with any coating method).
  • Fig. 2 shows the absorber 1 of Fig. 1 in cross section. It can be seen that, as mentioned, the lacquer coating 3 is drawn somewhat into the slots 22 and accordingly has indentations in the area of the slots 22. However, it is also conceivable that the coating 3 runs flat, as in the alternative cross section of FIG Fig. 3 shown. When coating 3 of the Fig. 3 it is, for example, a coating that closes the slots 22 at least approximately airtight.
  • the Fig. 4 shows a further exemplary embodiment of the absorber 1 according to the invention.
  • the carrier 2 of the acoustic absorber 1 then has a plurality of layers 2a-2c.
  • the layers 2a-2c each have recesses 22a-22c, which are partially aligned with one another and thus the (sound-absorbing) recesses of the carrier 2 form.
  • the visible side of the carrier 2 is provided with a lacquer coating.
  • the recesses 22a-22c can be designed and arranged as desired.
  • Another possible configuration shows Fig. 5 .
  • Fig. 6 shows an inventive absorber 1 with an irregular arrangement of (rectangular) cutouts 22.
  • the cutouts 22 are arranged in particular with a view to optimized sound absorption.
  • Fig. 7 a further possibility of arranging the recesses in the carrier 2 is shown.
  • the recesses are in the form of a large number of (in Fig. 7 undissolved) bores 22 (perforations with a small diameter) are formed, which are arranged along a plurality of lines 220.
  • the lines are designed in particular as contour lines, so that a contour image is created which is used, for example, for the decorative design of the visible surface of the carrier 2.
  • the acoustic absorbers 1 shown in the preceding figures can in particular be used as an element of a piece of furniture, for example a shelf 5, as in FIG Fig. 8 shown in the exploded view, here a rear wall 51 of the shelf is formed from at least one absorber 1 according to the invention, instead of the absorber 1 also differently configured absorbers 1a, 1b (for example with differently shaped recesses) can be used. It is also conceivable that floors 52 of the shelf 5 are each also formed by absorbers 1 according to the invention.
  • Fig. 9 similarly shows the Figures 6 and 7th an absorber 1 according to the invention (or a partial area of such an absorber) in plan view, the absorber 1 having a plurality of recesses 22 which are arranged in a pattern.
  • Fig. 10 likewise shows an absorber 1 according to the invention in a plan view, the absorber 1 being analogous to FIG Fig. 7 comprises a plurality of line-like, substantially vertically extending recesses 22 which extend so that they the pattern of the Fig. 9 represent.
  • This technique can of course be applied to basically any pattern or other objects to be represented. In particular, two adjacent lines run essentially parallel to one another.
  • the course of the line-like cutouts 22 is calculated in such a way that the highest possible sound diffusivity and / or sound absorption results.
  • the lines 22, as in Fig. 10 shown, run in such a way that they reveal an original image. However, this is not necessarily.
  • the line-like recesses 22 can be designed as solid or broken lines in the form of micro-gaps in the absorber 1.
  • the course of the line-like cutouts 22 is calculated on the basis of the course of wave fronts of a propagating wave (in particular using suitable differential equations), with an image or pattern that may be displayed by the cutouts being viewed as an obstacle to the wave.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Claims (15)

  1. Absorbeur acoustique, doté de :
    - un support (2) qui comporte une pluralité d'évidements (22) ; ainsi que
    - un revêtement (3) du support (2) lequel est formé à partir d'un vernis et recouvre les évidements (22) ;
    caractérisé en ce que :
    les sections (31) du revêtement (3) qui recouvrent les évidements (22) forment respectivement au moins deux segments (311) séparés l'un de l'autre par le biais d'une ouverture (312).
  2. Absorbeur acoustique selon la revendication 1, caractérisé en ce que les segments (311) sont réalisés de façon à être respectivement au moins pour l'essentiel fermés.
  3. Absorbeur acoustique selon la revendication 1 ou 2, caractérisé en ce qu'au moins quelques-uns des évidements (22) s'étendent à la façon d'une fente.
  4. Absorbeur acoustique selon la revendication 3, caractérisé en ce que les ouvertures (312) sont respectivement réalisées sous la forme d'une fente s'étendant de façon transversale par rapport aux fentes (22) .
  5. Absorbeur acoustique selon la revendication 4, caractérisé en ce que la fente possède respectivement une largeur d'approximativement 0,1 - 0,2 mm.
  6. Absorbeur acoustique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins quelques-uns des évidements (22) sont réalisés en section transversale au moins approximativement en forme de cercle.
  7. Absorbeur acoustique selon l'une quelconque des revendications précédentes, caractérisé en ce que les évidements (22) sont disposés selon un modèle régulier.
  8. Absorbeur acoustique selon l'une quelconque des revendications précédentes, caractérisé en ce que les évidements (22) sont disposés de telle sorte qu'ils fournissent une représentation imagée d'un objet.
  9. Absorbeur acoustique selon l'une quelconque des revendications précédentes, caractérisé en ce que les évidements (22) sont disposés le long d'une pluralité de lignes (220).
  10. Absorbeur acoustique selon l'une quelconque des revendications précédentes, caractérisé en ce que le support (2) est réalisé au moins pour l'essentiel de façon plane.
  11. Absorbeur acoustique selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le support (2) est réalisé de façon cintrée, de façon pliée ou de façon étagée.
  12. Absorbeur acoustique selon l'une quelconque des revendications précédentes, caractérisé en ce que le support (2) prend la forme d'une plaque en métal ou en matière plastique.
  13. Utilisation d'un absorbeur acoustique (1) selon l'une quelconque des revendications précédentes sous la forme d'un élément de revêtement de surface, sous la forme d'un élément de plafond ou d'un élément de paroi ou comme faisant partie d'un objet d'agencement.
  14. Objet d'agencement doté d'au moins un absorbeur acoustique (1) selon l'une quelconque des revendications 1 à 11.
  15. Objet d'agencement selon la revendication 14, caractérisé en ce que ledit objet d'agencement prend la forme d'une étagère (5).
EP18166394.9A 2014-02-11 2015-02-11 Absorbeur acoustique et utilisation d'un tel absorbeur acoustique Active EP3373290B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014202477.3A DE102014202477A1 (de) 2014-02-11 2014-02-11 Akustischer Absorber und Verwendung eines derartigen akustischen Absorbers
EP15707891.6A EP3105754B1 (fr) 2014-02-11 2015-02-11 Absorbeur acoustique et utilisation d'un tel absorbeur acoustique
PCT/EP2015/052900 WO2015121319A1 (fr) 2014-02-11 2015-02-11 Absorbeur acoustique et utilisation d'un tel absorbeur acoustique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP15707891.6A Division EP3105754B1 (fr) 2014-02-11 2015-02-11 Absorbeur acoustique et utilisation d'un tel absorbeur acoustique

Publications (2)

Publication Number Publication Date
EP3373290A1 EP3373290A1 (fr) 2018-09-12
EP3373290B1 true EP3373290B1 (fr) 2021-12-29

Family

ID=52627172

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18166394.9A Active EP3373290B1 (fr) 2014-02-11 2015-02-11 Absorbeur acoustique et utilisation d'un tel absorbeur acoustique
EP15707891.6A Not-in-force EP3105754B1 (fr) 2014-02-11 2015-02-11 Absorbeur acoustique et utilisation d'un tel absorbeur acoustique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15707891.6A Not-in-force EP3105754B1 (fr) 2014-02-11 2015-02-11 Absorbeur acoustique et utilisation d'un tel absorbeur acoustique

Country Status (4)

Country Link
US (1) US10102841B2 (fr)
EP (2) EP3373290B1 (fr)
DE (1) DE102014202477A1 (fr)
WO (1) WO2015121319A1 (fr)

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USD859696S1 (en) 2015-07-03 2019-09-10 Arktura Llc Architectural fixture
USD848035S1 (en) 2015-07-03 2019-05-07 Arktura Llc Architectural fixture
USD849969S1 (en) 2015-07-03 2019-05-28 Arktura Llc Architectural fixture
USD849275S1 (en) 2015-07-03 2019-05-21 Arktura Llc Architectural fixture
USD821613S1 (en) 2015-07-03 2018-06-26 Arktura, Llc Architectural fixture
USD802174S1 (en) * 2015-07-22 2017-11-07 Arktura Llc Architectural panel
USD792986S1 (en) * 2015-07-22 2017-07-25 Arktura Llc Architectural panel
US10943723B2 (en) * 2016-03-21 2021-03-09 Hubbell Incorporated Shel'k Noise reducing and cooling enclosure
EP3336256A1 (fr) * 2016-12-19 2018-06-20 Evonik Röhm GmbH Élément anti-bruit transparent absorbant phonique
USD843020S1 (en) 2017-07-28 2019-03-12 Aktura LLC Architectural fixture
USD849276S1 (en) 2017-07-31 2019-05-21 Arktura Llc Architectural fixture
USD846160S1 (en) 2017-07-31 2019-04-16 Arktura Llc Architectural fixture
USD847383S1 (en) 2017-07-31 2019-04-30 Arktura Llc Architectural fixture
KR20210090224A (ko) * 2019-03-14 2021-07-19 니혼온쿄엔지니어링 가부시키가이샤 음향 조정 선반

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Also Published As

Publication number Publication date
EP3373290A1 (fr) 2018-09-12
US10102841B2 (en) 2018-10-16
EP3105754B1 (fr) 2018-04-11
WO2015121319A1 (fr) 2015-08-20
DE102014202477A1 (de) 2015-08-13
EP3105754A1 (fr) 2016-12-21
US20160379616A1 (en) 2016-12-29

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