EP0441759A1 - Elément acoustique courbé - Google Patents

Elément acoustique courbé Download PDF

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Publication number
EP0441759A1
EP0441759A1 EP19910850019 EP91850019A EP0441759A1 EP 0441759 A1 EP0441759 A1 EP 0441759A1 EP 19910850019 EP19910850019 EP 19910850019 EP 91850019 A EP91850019 A EP 91850019A EP 0441759 A1 EP0441759 A1 EP 0441759A1
Authority
EP
European Patent Office
Prior art keywords
layer
element according
room
vaulted
supporting layer
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Withdrawn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
EP19910850019
Other languages
German (de)
English (en)
Inventor
Jan Skärgard
Leif Andersson
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 AB
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
Publication of EP0441759A1 publication Critical patent/EP0441759A1/fr
Withdrawn legal-status Critical Current

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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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8209—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only sound absorbing devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/8281—Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/829—Flat elements mounted at an angle, e.g. right angle, to the supporting surface
    • 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
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8442—Tray type elements
    • 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

Definitions

  • the present invention relates to a structural element for providing a limiting surface of a room or of a part of a room, in particular of a ceiling of industrial premises, but also of walls and other structural means, and the invention is more particularly directed to a sound insulating element for the said purpose.
  • the noice level often is high in factory premises and other production premises, and it is a constant aim to reduce the noice level by any means, thereby improving the noice climate of such premises, for instance by sound insulating both machines and localities. There are often also acoustic problems in different types of office premises.
  • An optical partitioning of the room can be established by more frequently using light reflecting elements for making it possible to provide an indirect illumination.
  • Such light reflecting elements thereby also can be formed so as to likewise provide a sound absorbing or sound reflecting activity.
  • the elements adjacent the ceiling are of great importance.
  • vaulted plate elements have been used as part elements of the ceiling of premises. Such elements can easily be cleaned and the elements can be formed with a lasting light reflecting capacity. Such elements, however, have no sound absorption property.
  • the invention is intended to solve this problem and to provide a vaulted or cup-shaped structural element suited for being used, in particular, as a kind of cavetto-like element in the construction of ceilings or parts of ceilings of industrial premises and large office premises etc., and which element should have both light reflecting and sound absorbing properties.
  • the element for other purposes, for instance as corner elements in wall corners, as free-standing elements which separately or in pairs have light reflecting and sound absorbing properties and are mounted in ceilings and on walls etc.
  • the structural element is vaulted or cup-formed and comprises a curved, supporting layer of sheet metal, plastic or a similar thin and lightweight material.
  • said supporting plate layer On its concave inner surface, that is the surface of the element which is facing the interior of the room, said supporting plate layer has a porous layer, which covers at least the largest portion of the supporting plate surface, and which is connected to said surface by a glue joint.
  • the supporting plate layer preferably is perforated.
  • the porous inner layer preferably also should be colour which is light enough to well reflect the incoming light.
  • Figure 1 shows a transversal cross section through a simple embodiment of a structural element according to the invention.
  • Figure 2 correspondingly shows a similar structural element which along the edges thereof are formed with strengthening box profiles, and figure 3 shows an alternative embodiment of a such strengthened element.
  • Figure 4 shows an application in which an element according to the invention, formed with longitudinally extending strengthening boxes, is connected with further plate elements along said two boxes.
  • Figure 5 is a vertical view of an element used also for illumination purposes, and figure 6, finally, is a perspective view of the element of figure 5.
  • the structural element 1 shown in the drawings is formed as a vaulted of curved element, which in the first place is intended to be mounted free-hanging from the ceiling, free-standing on the floor or mounted in the angle between a ceiling 2 and a wall 3, or between two walls, or between two other elements which are connected to each other in an angular configuration, and whereby the ceiling 2 and the wall 3, or the two walls respectively, are joined over an angle of about 90°.
  • the element easily can be arranged for being connected between building elements which form both greater and less angle to each other than a right angle, and that the structural element 1, depending on the size of the element, also can be mounted over and covering an available shade ledge or a cavetto 5.
  • the structural element 1 can be mounted against acoustic plates already present on the wall or the ceiling, or against any other wall or ceiling elements.
  • the structural element comprises a supporting plate element 6, which on its concave side, that is the side of the element facing the room, carries a layer 7 which covers at least the largest part of the plate element 6 and the purpose of which is to provide both a sound damping and a light reflecting layer on the plate element 6.
  • plate element is meant, in this connection, a supporting element of any type of material having a sufficient pliability and strength for being formed and mounted as illustrated, for instance an element of sheet steel or other sheet metal material, plastic, cross veneer, mould-baked particle board etc.
  • a plate element of steel or other metal for instance of galvanized sheet iron or of aluminum can have a thickness of 0,3 - 2 mm depending on the size of the element.
  • An element of a plastic material ought to be somewhat thicker than an element of metal plate, and an element of veneer, particle board or other wooden material ought to be still thicker.
  • An element of sheet metal preferably should be perforated, both in order to improve the sound damping properties and also to reduce the weight of the element as much as possible.
  • the perforation can be in the form of through bores, for instance circular bores spaced in a triangle shape in relation to each other, or slots or otherwise formed perforations, and so that the plate element gets an open or perforated area of about 15-50%.
  • the element can be made in any optional sizes, for instance with widthes of from 100 mm to about 3.000 mm.
  • the sound damping and light reflecting inner layer 7 preferably is a porous layer, for instance a layer of woven glass fabric or glass fibre vlies having a weight of between 10 and 300 g/m2 or preferably between 50 and 150 g/m2.
  • the inner layer 7 is painted with a light colour so as to get a good light reflecting ability. It also ought to have a relatively smooth surface so that dust does not stick so easily to the surface and so that the surface can be dedusted and wiped off if needed.
  • the inner layer 7 preferably should cover as large part of the inner surface of the supporting element as possible and it can be attached to the support surface by means of glue, double sticking tape or in any corresponding way.
  • the combined structural element can be manufactured as an endless path which is cut into pieces as desired.
  • the width of the element can be varied but a suitable width is between 100 and 3000 mm.
  • the element is vaulted in the cross direction so as to form an elongated, curved element.
  • the element is formed with some kind of strengthening means, which can also be used as a mounting element 8 and 9 respectively, by means of which the structural element can be mounted for instance between the ceiling 2 and the wall 3.
  • said strengthening means or mounting means can consist of double edges which are folded rearwards (from the insulation element 7), or it can be a separate U-shaped bar 10 as shown in figure 1, which can be nailed or otherwise fixed connected to the ceiling 2 and the wall 3 with the open grooves thereof facing each other.
  • the combined element is mounted by being being bowed like an arc and by being introduced in the U-shaped grooves of said mounting bars 10 in which position the element is pressed into engagement by its own spring action.
  • the supporting, perforated layer 6 and the porous layer 7 are preferably formed so that the combined element gets a flow resistance of between 250 and 2000 Ns/m2.
  • Figure 2 shows a structural element 1′, which along the longitudinal edges thereof is formed with box shaped strengthening and mounting elements 8′ and 9′, which can be glued, nailed and screwed etc. to the ceiling and to the walls respectively.
  • Said box shaped strengthening elements 8′ and 9′ can be formed "lying” as shown in figure 2, or the can be formed “standing” as shown in figure 3, whereby the support plate 6 is bowed outwards from the porous layer 7 in an angle of about 90°.
  • Figure 4 illustrates how a structural element 1 ⁇ according to the invention can be used for instance as a vertical corner element bridging two wall elements 11 and 12.
  • the longitudinal edges of the support layer 6 ⁇ is formed with an S-shaped bending 13, which with its lower bending part 14 covers half the width of the strengthening box 8 ⁇ and 9 ⁇ respectively, and the wall elements 11 and 12 are formed with similar S-bendings 15 (element 11) or spiral-formed bendings 16 (element 12), by means of which the wall elements 11 and 12 becomed joined with the corner element 1 ⁇ so that the elements nearly contact each other with their S-shaped bendings and so that there are as small visible joints as possible.
  • the lower strengthening element of a horizontally hanging element, or eventually both strengthening elements is formed as armatures for fluorescent tubes, which armatures can have a U-shaped cross section facing downwards, and can be formed with through bores in the bottom of the armature box, so that light is transmitted both inwards the concave inner surface 7 and out and down from the element, for instance so that the armatures get about 25% upwards directed light and 100% downwards directed light.

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)
EP19910850019 1990-02-08 1991-02-01 Elément acoustique courbé Withdrawn EP0441759A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9000456 1990-02-08
SE9000456A SE500334C2 (sv) 1990-02-08 1990-02-08 Krökt akustikelement

Publications (1)

Publication Number Publication Date
EP0441759A1 true EP0441759A1 (fr) 1991-08-14

Family

ID=20378495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910850019 Withdrawn EP0441759A1 (fr) 1990-02-08 1991-02-01 Elément acoustique courbé

Country Status (2)

Country Link
EP (1) EP0441759A1 (fr)
SE (1) SE500334C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000005707A1 (fr) * 1998-07-24 2000-02-03 Minnesota Mining And Manufacturing Company Film polymerique microperfore absorbeur de son et dispositif absorbeur associe
US6598701B1 (en) 2000-06-30 2003-07-29 3M Innovative Properties Company Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
US6977109B1 (en) 1998-07-24 2005-12-20 3M Innovative Properties Company Microperforated polymeric film for sound absorption and sound absorber using same
EP2100292A1 (fr) * 2006-12-28 2009-09-16 B&l Lund Ab Procédé d'absorption d'ondes acoustiques

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE829055C (de) * 1949-12-28 1952-01-21 Gyproc Products Ltd Gipsformstueck und Verfahren zur Herstellung desselben
DE3242940A1 (de) * 1982-11-20 1984-05-24 Hans Julius 6303 Hungen Schmitt Akustisch wirksames bauelement
EP0227342A2 (fr) * 1985-12-05 1987-07-01 Caseward Limited Corniche de plafond
GB2191518A (en) * 1986-07-10 1987-12-16 Tanya May Eccleshall Cornice system with covered joints
NO158762B (no) * 1980-04-09 1988-07-18 A & K Byggnadsfysik Ab Anordning til dempning og absorpsjon av lyd i lokaler.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE829055C (de) * 1949-12-28 1952-01-21 Gyproc Products Ltd Gipsformstueck und Verfahren zur Herstellung desselben
NO158762B (no) * 1980-04-09 1988-07-18 A & K Byggnadsfysik Ab Anordning til dempning og absorpsjon av lyd i lokaler.
DE3242940A1 (de) * 1982-11-20 1984-05-24 Hans Julius 6303 Hungen Schmitt Akustisch wirksames bauelement
EP0227342A2 (fr) * 1985-12-05 1987-07-01 Caseward Limited Corniche de plafond
GB2191518A (en) * 1986-07-10 1987-12-16 Tanya May Eccleshall Cornice system with covered joints

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000005707A1 (fr) * 1998-07-24 2000-02-03 Minnesota Mining And Manufacturing Company Film polymerique microperfore absorbeur de son et dispositif absorbeur associe
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
US7731878B2 (en) 1998-07-24 2010-06-08 3M Innovative Properties Company Process of forming a microperforated polymeric film for sound absorption
US6598701B1 (en) 2000-06-30 2003-07-29 3M Innovative Properties Company Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
EP2100292A1 (fr) * 2006-12-28 2009-09-16 B&l Lund Ab Procédé d'absorption d'ondes acoustiques
EP2100292A4 (fr) * 2006-12-28 2014-03-12 B & L Lund Ab Procédé d'absorption d'ondes acoustiques

Also Published As

Publication number Publication date
SE9000456L (sv) 1991-08-09
SE500334C2 (sv) 1994-06-06
SE9000456D0 (sv) 1990-02-08

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