SE500334C2 - Curved acoustic element - Google Patents

Curved acoustic element

Info

Publication number
SE500334C2
SE500334C2 SE9000456A SE9000456A SE500334C2 SE 500334 C2 SE500334 C2 SE 500334C2 SE 9000456 A SE9000456 A SE 9000456A SE 9000456 A SE9000456 A SE 9000456A SE 500334 C2 SE500334 C2 SE 500334C2
Authority
SE
Sweden
Prior art keywords
layer
element according
supporting layer
walls
perforated
Prior art date
Application number
SE9000456A
Other languages
Swedish (sv)
Other versions
SE9000456D0 (en
SE9000456L (en
Inventor
Jan Skaergaard
Leif Andersson
Original Assignee
Rockwool Ab
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 Ab filed Critical Rockwool Ab
Priority to SE9000456A priority Critical patent/SE500334C2/en
Publication of SE9000456D0 publication Critical patent/SE9000456D0/en
Priority to EP19910850019 priority patent/EP0441759A1/en
Publication of SE9000456L publication Critical patent/SE9000456L/en
Publication of SE500334C2 publication Critical patent/SE500334C2/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, 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
    • E04B1/84Sound-absorbing elements
    • E04B1/86Sound-absorbing elements slab-shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, 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
    • E04B1/8209Heat, 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, 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
    • E04B2001/8263Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, 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
    • E04B2001/8263Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/8281Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, 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
    • E04B2001/8263Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/829Flat elements mounted at an angle, e.g. right angle, to the supporting surface
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, 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
    • E04B1/84Sound-absorbing elements
    • E04B2001/8414Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, 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
    • E04B1/84Sound-absorbing elements
    • E04B2001/8423Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8442Tray type elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, 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
    • E04B1/84Sound-absorbing elements
    • E04B2001/8457Solid slabs or blocks
    • E04B2001/8461Solid slabs or blocks layered

Landscapes

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

Abstract

Structural element for providing a limiting surface of a room or a part of a room, in particular an element for ceilings, walls and similar parts of industrial premises, office premises etc., and comprising a vaulted supporting layer, preferably a perforated layer (6) of sheet metal, plastic, cross veneer, particle board or an equivalent material, which on the surface thereof facing the room carries a porous, preferably light coloured layer (7) of for instance glass fibre vlies or woven glass fibre, which layer covers at least the largest portion supporting layer (6), and which is attached thereto by means of glue, double sticking tape or a similar attachment means. <IMAGE>

Description

500 554 såväl goda ljusreflekterande som goda ljudabsorberande egenskaper. 500 554 both good light-reflecting and good sound-absorbing properties.

Elementet skall givetvis även kunna användas för andra ändamål, t ex som hörnelement i vägghörn, som fristående eller i par samverkande och fristående ljusreflektions- och ljuddämpningselement i tak och på 5 väggar mm.The element must of course also be able to be used for other purposes, for example as corner elements in wall corners, as free-standing or in pairs of cooperating and free-standing light reflection and sound-absorbing elements in ceilings and on walls etc.

Enligt uppfinningen är konstruktionselementet välvt eller skålformat och består av ett krökt bärande skikt av plåt, plast eller liknande tunt och lätt material, där detta bärande plåtskikt på sin konkava insida, dvs plåtens inåt mot rummet vända sida, har ett 10 poröst skikt, vilket täcker åtminstone den största delen av det bärande plåtskiktets yta, och vilket är fäst mot denna yta genom limning.According to the invention, the construction element is curved or cup-shaped and consists of a curved supporting layer of sheet metal, plastic or similar thin and light material, where this supporting sheet layer on its concave inside, i.e. the side of the plate facing inwards towards the space, has a porous layer, which covers at least most of the surface of the supporting sheet layer, and which is attached to this surface by gluing.

För att förbättra elements akustiska egenskaper, och för att ge elementet låg vikt kan det vara lämpligt att det det bärande l5 plåtskiktet är perforerat. Det är också ur optisk synpunkt fördel- aktigt att det porösa innerskiktet är ljust så att det reflekterar ljuset väl.In order to improve the acoustic properties of the element, and to give the element low weight, it may be appropriate for the supporting sheet metal layer to be perforated. From an optical point of view, it is also advantageous that the porous inner layer is bright so that it reflects light well.

Uppfinningen skall nu beskrivas närmare i anslutning till bifogade ritningar, vilka visar några olika utföringsformer och 20 applikationer av konstruktionselementet enligt uppfinningen.The invention will now be described in more detail in connection with the accompanying drawings, which show some different embodiments and applications of the construction element according to the invention.

I figur 1 visas ett transversellt snitt genom en enkel utföringsform av ett konstruktionselement enligt uppfinningen. Figur 2 visar på motsvarande sätt ett liknande konstruktionselement, vilket längs sina kanter är utformat med förstärkande lådprofiler, och figur 25 3 visar en alternativ utföringsform av ett sådant förstärkt element.Figure 1 shows a transverse section through a simple embodiment of a construction element according to the invention. Figure 2 shows in a corresponding manner a similar construction element, which along its edges is formed with reinforcing drawer profiles, and figure 3 shows an alternative embodiment of such a reinforced element.

Figur 4 visar slutligen en applikation, vid vilken ett element enligt uppfinningen, försett med längsgående förstärkningslådor, är samman- kopplat längs båda lådorna med ytterligare plåtelement.Figure 4 finally shows an application in which an element according to the invention, provided with longitudinal reinforcement boxes, is connected along both boxes with further plate elements.

Det i figurerna visade konstruktionselementet 1 bildar ett välvt 30 eller skålformat element, vilket i första hand är avsett att infogas i vinkeln mellan ett tak 2 och en vägg 3 eller mellan två väggar eller mellan två andra element som är sammanfogade i vinkel mot varandra, och där taket 2 och väggen 3 resp. de båda väggarna bildar cirka 90° vinkel mot varandra. Det är emellertid uppenbart för fackmannen att 35 elementet lätt kan anpassas för infogning mellan byggnadselement som 10 l5 20 25 30 35 590 354 bildar både mindre och större vinkel mot varandra än rät vinkel, och att konstruktioneslementet 1, beroende på hur stort elementet utformas även kan fogas in över en redan befintlig skugglist 4 eller hålkälslist 5. Det är också uppenbart att konstruktionselementet 1 även kan fogas in mot befintliga akustikskivor eller vilka som helst andra vägg- eller takelement.The construction element 1 shown in the figures forms a curved or cup-shaped element, which is primarily intended to be inserted at the angle between a roof 2 and a wall 3 or between two walls or between two other elements which are joined at an angle to each other, and where the ceiling 2 and the wall 3 resp. the two walls form an angle of about 90 ° to each other. However, it is obvious to the person skilled in the art that the element can be easily adapted for insertion between building elements which form both smaller and larger angles to each other than right angles, and that the construction element 1, depending on how large the element is designed can also be is inserted over an already existing shadow strip 4 or hollow skirting strip 5. It is also obvious that the construction element 1 can also be joined against existing acoustic panels or any other wall or ceiling elements.

Konstruktionselementet består allmänt av ett bärande plåtelement 6, vilket på sin konkava sida, dvs den inåt mot rummet vända sidan, har ett skikt 7 som åtminstone i huvudsak täcker plâtelementet 6, och som har till ändamål dels att bilda ett ljuddämpande, men också ett ljusreflekterande skikt på plåtelementet 6.The construction element generally consists of a supporting plate element 6, which on its concave side, i.e. the inwardly facing side of the room, has a layer 7 which at least substantially covers the plate element 6, and which has the purpose partly to form a sound-absorbing but also a light-reflecting layer on the sheet metal element 6.

Med “plåtelement" avses i detta sammanhang ett bärelement av vilket som helst material med tillräcklig böjbarhet och hållfasthet för att kunna formas och infogas på det visade sättet, t ex element av stål- eller metallplåt, plast, kryssfaner, formbakad spånskiva mm.In this context, "sheet metal element" means a support element of any material with sufficient flexibility and strength to be able to be formed and inserted in the manner shown, for example elements of sheet steel or metal, plastic, plywood, molded chipboard etc.

Ett plâtelement av järn- eller metall, t ex galvaniserad järnplât eller aluminium kan ha en tjocklek av 0,3 - 2 mm beroende på stor- leken på elementet. Ett element av plast bör vara något tjockare, och ett element av faner, spån eller annat trämaterial bör vara ännu något tjockare. Ett element av metallplåt utformas lämpligen per- forerat, dels för att förbättra de ljuddämpande egenskaperna, dels också för att göra elementet så lätt som möjligt. Perforeringen kan utformas som hål , t ex cirkulära hål anordnade i triangeldelning, eller som slitsar eller andra genombrytningar, och så att plåt- elementet får en öppen eller genombrutan area av cirka 15-50 %.A sheet metal element made of iron or metal, eg galvanized sheet iron or aluminum, can have a thickness of 0.3 - 2 mm depending on the size of the element. An element of plastic should be slightly thicker, and an element of veneer, shavings or other wood material should be even slightly thicker. A metal sheet element is suitably designed perforated, partly to improve the sound-absorbing properties, and partly also to make the element as light as possible. The perforation can be designed as holes, for example circular holes arranged in triangular division, or as slots or other openings, and so that the sheet metal element has an open or perforated area of about 15-50%.

Det ljuddämpande och ljusreflekterande innerskiktet 7 utgörs lämpligen av ett poröst skikt, t ex ett skikt av glasfiberväv eller glasfibervlies med en ytvikt av 10-300 g/m2 eller företrädesvis mellan 50 och 150 g/m2. Lämpligen utformas innerskiktet 7 med ljus färg, så att det reflekterar ljus väl. Det bör också ha en relativt slät yta, så att damm inte fastnar så lätt, och så att det kan dammas och torkas av vid behov.The sound-absorbing and light-reflecting inner layer 7 suitably consists of a porous layer, for example a layer of glass fiber fabric or glass fiber fleece with a basis weight of 10-300 g / m 2 or preferably between 50 and 150 g / m 2. Suitably, the inner layer 7 is designed with a light color, so that it reflects light well. It should also have a relatively smooth surface, so that dust does not stick so easily, and so that it can be dusted and wiped off if necessary.

Innerskiktet 7 skall företrädesvis täcka en så stor del av bärskiktets 6 inneryta som möjligt, och det kan fästas mot bärskitet med hjälp av lim, dubbelhäftande tejp eller på motsvarande sätt. 500 334 l0 l5 20 25 30 35 Det sammansatta konstruktionselementet kan tillverkas 1 löpande längder och kapas efter behov. Bredden kan varieras, men en lämplig brecc kan vara mellan 100 och 300 mm. Det är böjt 1 tvärleden 1 en båge, så att det bildar ett långsträcket, skålformat element, och det har längs vardera längsgående kanten någon form av förstärkning, som även kan tjänstgöra som fästelement 8 resp. 9, med hjälp av vilka konstruktionselementet 1 kan infogas mellan t ex taket 2 och väggen 3. Förstärknings- eller fästelementen kan 1 sin enklaste form bestå av bakåt (från isolerelementet 7) bockade, dubbelvikta kanter, eller det kan utgöras av en separat U-formad skena 10, såsom visas 1 figur 1, som spikas eller på annat sätt fästs i taket 2 och väggen 3 med de öppna spåren vända mot varandra, och 1 vilkas U-spår det sammansatta elementet 1 genom att böjas 1 båge kan föras in och därefter fjäd- rande spänna in i fästskenorna 10.The inner layer 7 should preferably cover as large a part of the inner surface of the support layer 6 as possible, and it can be attached to the support layer by means of glue, double-sided adhesive tape or in a corresponding manner. 500 334 l0 l5 20 25 30 35 The composite structural element can be manufactured in continuous lengths and cut as required. The width can be varied, but a suitable brecc can be between 100 and 300 mm. It is bent in the transverse joint 1 in an arc, so that it forms an elongate, cup-shaped element, and it has along each longitudinal edge some form of reinforcement, which can also serve as fastening element 8 resp. 9, by means of which the construction element 1 can be inserted between, for example, the roof 2 and the wall 3. The reinforcing or fastening elements 1 can in its simplest form consist of bent (from the insulating element 7) bent, double-folded edges, or it can consist of a separate U- shaped rail 10, as shown in Figure 1, which is nailed or otherwise attached to the ceiling 2 and the wall 3 with the open grooves facing each other, and 1 whose U-groove the composite element 1 can be inserted by bending in an arc and then resilient clamping into the mounting rails 10.

Det bärande, perforerade skiktet 6 och det porösa skiktet 7 utformas lämpligen så, att det sammansatta elementet får ett ström- ningsmotstånd av mellan 250 - 2000 Ns/m2.The supporting, perforated layer 6 and the porous layer 7 are suitably designed so that the composite element has a flow resistance of between 250 - 2000 Ns / m 2.

I figur 2 visas hur konstruktionselementet 1' längs sina lång- kanter utformats med lådformade förstärknings- och infästningselement 8'och 9', vilka kan limmas, spikas, skruvas mm i taket resp. väggarna. De lådformade förstärkningarna 8' och 9' kan vara "liggande" såsom visas i figur 2, eller så kan de utformas "stående" såsom visas i figur 3, varvid bärplåten 6 bockats 1 cirka 900 vinkel utåt från det porösa skiktet 7.Figure 2 shows how the construction element 1 'along its long edges is designed with box-shaped reinforcing and fastening elements 8' and 9 ', which can be glued, nailed, screwed etc. into the ceiling resp. the walls. The box-shaped reinforcements 8 'and 9' may be "horizontal" as shown in Figure 2, or they may be formed "vertical" as shown in Figure 3, the support plate 6 being bent at about 900 angles outwards from the porous layer 7.

Figur 4 visar hur ett konstruktionselement 1" enligt uppfin- ningen kan användas t ex som vertikalt hörnelemet mellan två väggstycken 11 och 12. För att konstruktionen skall få så små skarvar som möjligt har bärskiktet 6" utmed sina långkanter utformats med en S-liknande bockning 13, vilken med sin undre böj 14 täcker t ex halva bredden på den förstärkningslådan 8" resp 9", och där väggelementen 11, 12 utformats med liknande S-böjar 15 (elementet 11) eller spiral- böjar 16 (elementet 12), medelst vilka väggelementen 11 och 12 sammanfogats med hörnelementet 1" på sådant sätt att elementen nära kontaktar vararndra med sina S-formade böjar, och så att de synliga skarvarna blir så små som möjligt.Figure 4 shows how a construction element 1 "according to the invention can be used, for example, as the vertical corner member between two wall pieces 11 and 12. In order for the construction to have as small joints as possible, the support layer 6" along its long edges has been designed with an S-like bend. 13, which with its lower bend 14 covers, for example, half the width of the reinforcing box 8 "and 9", respectively, and where the wall elements 11, 12 are formed with similar S-bends 15 (element 11) or spiral bends 16 (element 12), by means of which the wall elements 11 and 12 are joined to the corner element 1 "in such a way that the elements closely contact each other with their S-shaped bends, and so that the visible joints become as small as possible.

Hänvisníngssiffror Obwmcnàwmv-I 8. 9 9| 10 11 12 13 14 15 konstruktíonselement tak vägg skugg1ist hâïkäïsïist bärpïât pøröst skikt förstärkníngsïist ïådformad förstärkning (8") förstärkningsïist, (8“) låformad förstärkning fästskena Vä99 Vä99 S-krök undre böj (1 13) undre böj spíraïböj U1 CD CD OJ OJ .EnReference Figures Obwmcnàwmv-I 8. 9 9 | 10 11 12 13 14 15 construction element roof wall shadow1ist hâïkäïsïist bearing pørost layer reinforcement ïad-shaped reinforcement (8 ") reinforcementïist, (8") lock-shaped reinforcement fastening rail Vä99 Vä99 S-bend lower bend (11) CD OreJJ. One

Claims (9)

P a t e n t k r a vP a t e n t k r a v 1. Konstruktionselement för uppbyggnad av en ljudabsorberande och ljusreflekterande begränsningsyta för en lokal eller för en del därav, i synnerhet för innertak, väggar och liknande i industri- lokaler, kontorslokaler mm, och bestående av ett krökt, bärande skikt (6) av plåt, plast, kryssfaner, spånskiva eller liknande material, vilket på sin inåt mot lokalen vända, konkava sida uppbär ett poröst skikt (7), som täcker åtminstone den största delen av det bärande skiktet (6), kännetecknat av att elementet har förstärkta längsgående kanter(8, 9; 8ß 9';8“, 9"),vilka tjänstgör som förstärkning, och vilka kan utnyttjas som infästningsorgan för konstruktionselementet.Design elements for constructing a sound-absorbing and light-reflecting confinement surface for a room or for a part thereof, in particular for ceilings, walls and the like in industrial premises, office premises, etc., and consisting of a curved, supporting layer (6) of sheet metal, plastic, plywood, chipboard or similar material, which on its inwardly facing, concave side bears a porous layer (7), which covers at least the largest part of the supporting layer (6), characterized in that the element has reinforced longitudinal edges ( 8, 9; 8ß 9 '; 8 ", 9"), which serve as reinforcement, and which can be used as fastening means for the structural element. 2. Element enligt krav 1, kännetecknat av att de förstärkta, längsgående kanterna är utformade som fästskenor (10), medelst vilka elementet kan infogas mot tak och väggar, mellan ett tak och en vägg, mellan två väggar, mm.Element according to claim 1, characterized in that the reinforced, longitudinal edges are designed as fastening rails (10), by means of which the element can be inserted against ceilings and walls, between a roof and a wall, between two walls, etc. 3. Element enligt krav 1 eller 2, kännetecknat av att de förstärkta, längsgående kanterna (82 8") är utformade som stående eller liggande längsgående lådor med rektangulärt tvärsnitt för infogning av elementet mot tak och väggar, och med vilka på liknande sätt utformade väggelement kan fogas samman med hörnelement.Element according to claim 1 or 2, characterized in that the reinforced, longitudinal edges (82 8 ") are designed as standing or horizontal longitudinal boxes with a rectangular cross-section for insertion of the element against ceilings and walls, and with which wall elements are similarly designed can be joined together with corner elements. 4.Element enligt något av föregående krav, kännetecknat av att det bärande materialskiktet (6) är perforerat eller genombrutet och har en genombruten, öppen area av 15-50%, bestående t ex av cirkulära hål anordnade i triangeldelning eller av genombrutna slitsar eller liknande.Element according to one of the preceding claims, characterized in that the supporting material layer (6) is perforated or perforated and has a perforated, open area of 15-50%, consisting for example of circular holes arranged in triangular division or of perforated slits or the like. . 5. Element enligt något av föregående krav, kännetecknat av att det bärande skiktet (6) är utfört av järn, galvaniserat järn, aluminium eller annan metallplåt med en tjocklek av 0,3 - 2 mm.Element according to one of the preceding claims, characterized in that the supporting layer (6) is made of iron, galvanized iron, aluminum or other metal sheet with a thickness of 0.3 - 2 mm. 6. Element enligt något av kraven 1-4, kännetecknat av att det bärande skiktet (6) är utfört av s k plast-plåt. (TI CD CD (N C »iElement according to one of Claims 1 to 4, characterized in that the supporting layer (6) is made of so-called plastic sheet. (TI CD CD (N C »i 7. Eïement enHgt något av föregående krav, kännetecknat av att det porösa skíktet (7) utgörs av gïasfíbervïies eHer gïasfiberväv, och av att det porösa skíktet (7) är fäst mot det bärande skiktet (6) med hjäïp av Hm, dubbe1häftande tejp eHer Hknande.An element according to any one of the preceding claims, characterized in that the porous layer (7) consists of gaseous fibrous or gaseous fibrous fabric, and in that the porous layer (7) is attached to the supporting layer (6) by means of Hm, double-sided adhesive tape or Hknande. 8. Eïement enhgt krav 7, kännetecknat av att det porösa skiktet har en ytvikt av 10-300 g/mz, eHer företrädesvis 50-150 g/mz.Element according to claim 7, characterized in that the porous layer has a basis weight of 10-300 g / m 2, or preferably 50-150 g / m 2. 9. E1ement enïigt något av föregående krav, kännetecknat av att det av det bärande skíktet (6) och det porösa skíktet (7) sammansatta eïementet har ett sammanïagt strömningsmotstånde av menar» zso och zooo Ns/mz.Element according to any one of the preceding claims, characterized in that the element composed of the supporting layer (6) and the porous layer (7) has a combined flow resistance of means »zso and zooo Ns / mz.
SE9000456A 1990-02-08 1990-02-08 Curved acoustic element SE500334C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9000456A SE500334C2 (en) 1990-02-08 1990-02-08 Curved acoustic element
EP19910850019 EP0441759A1 (en) 1990-02-08 1991-02-01 Vaulted acoustic element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000456A SE500334C2 (en) 1990-02-08 1990-02-08 Curved acoustic element

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SE9000456D0 SE9000456D0 (en) 1990-02-08
SE9000456L SE9000456L (en) 1991-08-09
SE500334C2 true SE500334C2 (en) 1994-06-06

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6617002B2 (en) 1998-07-24 2003-09-09 Minnesota Mining And Manufacturing Company Microperforated polymeric film for sound absorption and sound absorber using same
US6977109B1 (en) 1998-07-24 2005-12-20 3M Innovative Properties Company Microperforated polymeric film for sound absorption and sound absorber using same
US6598701B1 (en) 2000-06-30 2003-07-29 3M Innovative Properties Company Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
SE0602831L (en) * 2006-12-28 2008-06-29 B & L Lund Ab Ways of absorbing sound waves

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Publication number Priority date Publication date Assignee Title
DE829055C (en) * 1949-12-28 1952-01-21 Gyproc Products Ltd Gipsformstueck and method for producing the same
SE427364B (en) * 1980-04-09 1983-03-28 A & K Byggnadsfysik Ab DIAGONALLY MOUNTED SOUND ABSORBENT
DE3242940A1 (en) * 1982-11-20 1984-05-24 Hans Julius 6303 Hungen Schmitt ACOUSTICALLY EFFECTIVE COMPONENT
GB8529541D0 (en) * 1985-12-05 1986-01-08 Enbee Products Ltd Coving
GB2191518A (en) * 1986-07-10 1987-12-16 Tanya May Eccleshall Cornice system with covered joints

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SE9000456D0 (en) 1990-02-08
EP0441759A1 (en) 1991-08-14
SE9000456L (en) 1991-08-09

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