EP3577284B1 - Wandmontierte akustische struktur - Google Patents

Wandmontierte akustische struktur Download PDF

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Publication number
EP3577284B1
EP3577284B1 EP18707971.0A EP18707971A EP3577284B1 EP 3577284 B1 EP3577284 B1 EP 3577284B1 EP 18707971 A EP18707971 A EP 18707971A EP 3577284 B1 EP3577284 B1 EP 3577284B1
Authority
EP
European Patent Office
Prior art keywords
panel
panels
sound
wall
angle bars
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
EP18707971.0A
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English (en)
French (fr)
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EP3577284A1 (de
Inventor
Tomasz ORZECHOWSKI
Katarzyna JAKUBOWSKA
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.)
Eho Spolka Akcyjna
Original Assignee
Eho Spolka Akcyjna
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Filing date
Publication date
Application filed by Eho Spolka Akcyjna filed Critical Eho Spolka Akcyjna
Priority claimed from PCT/IB2018/050605 external-priority patent/WO2018142301A1/en
Publication of EP3577284A1 publication Critical patent/EP3577284A1/de
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Publication of EP3577284B1 publication Critical patent/EP3577284B1/de
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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
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
    • E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
    • E04F13/083—Hooking means on the back side of the covering elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0867—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having acoustic absorption means on the visible surface
    • 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
    • E04B2001/8414—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
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • E04B2001/8419—Acoustical cones or the like, e.g. for anechoic chambers

Definitions

  • the subject of the invention is a decorative wall mounted acoustic structure for use in construction, particularly as a wall-mounted finishing element in rooms.
  • the invented product has a form of modular plates joined to a wall being finished with the use of an innovative frame.
  • the function of the sound-insulating structure according to the design is to improve the acoustic properties and sound-insulate interiors of large rooms while keeping the high aesthetic level and simple construction.
  • the first type of various types of panels is based on the phenomenon of dissipation of the sound wave and this type of structure is referred to as a diffuser.
  • Inventions of this type are based on the use of uneven texture of the dissipating surface in the form of various bosses, on which sound wave diffraction occurs.
  • the second type of structures improving sound insulation properties called an absorber and it is based on the process of absorbing the energy of sound waves by a sound-absorbing material.
  • Absorbing systems are usually based on the use of one or more layers of textile materials or other porous structures.
  • Polish utility model of PL68326 reveals a decorative sound-insulating panel formed by aluminium profiles in the form of plates which have an acoustically active surface that is bent into regular folds, and particularly with multiple folds or corrugations.
  • US6244378 reveals a composite panel with several layers which also functions as a diffuser and absorber of sound.
  • the mentioned invention reveals a panel with several layers, where the first layer has a form of a honeycomb provided with openings and the next layer forms a Helmholtz resonator.
  • the invention also reveals the use, as an alternative to corrugated surfaces, pyramidal structures in the form of pyramids (uniform and non-uniform) with a truncated apex. At the same time, individual pyramids after projection on the plane in the XY coordinate system have non-uniformly spaced apexes.
  • the international publication No. WO 2016/061414 discloses the features of the preamble of claim 1. It discloses a method, system and device for cladding of materials, and in particular to an undercut clip anchor system.
  • the system comprises a horizontal rail which mounts both an upper undercut clip and a lower undercut clip for attaching an upper cladding panel and a lower cladding panel, respectively. Serrations on the undercut clips and on a nut bar serrated washer allow for the accurate vertical adjustment of the cladding panels.
  • US 3 712 413 reveals a sound absorbing device that has a holder with oppositely disposed tongues, which holder receives sound absorbing members that have kerfs in opposite sides thereof into which said tongues enter.
  • Said members have an inner straight portion or base at opposite sides, the outer parts of which are outwardly of said kerfs and extend laterally farther outward than the remainders of said members so that they contact each other to thereby close off the movement of sound waves through my device.
  • German patent of DE 29 37 389 discloses a sound insulation panel made of foam and inelastically bendable wire mesh arranged therein, which has a front-side structured of the foam surface arranged on the one side of the wire grid plane, for example as a pyramid, characterized in that the sound insulating plate is bent with the grid into a wave-shaped longitudinal profile, which can be sinusoidal.
  • the European patent EP 0 685 614 disclose a fastening device for cladding panels consisting of a frame in which upper and lower horizontal elements having protruding edges to engage with the appropriate duct on the back of each panel.
  • the vertical side elements with notches engage with the rails or rods attached to the wall.
  • the duct on the back of the panel are open only from one end and the horizontal elements are attached to them before connecting to the side elements.
  • the European patent application EP 0 267 525 disclose a holding device for slab-like cladding elements which are intended for the finishing and facade formation of buildings.
  • the holding device possesses holding elements in the form of pins or tongue-like tabs which are fastened to the surfaces to be clad and are engaged in cut-outs on the rear side of the cladding elements.
  • the American patent of US 2015/176287 reveal a system for mounting wall panels to a wall includes wall panels, each including a main wall panel section, and four bent end sections extending from edges of the main wall panel section; a plurality of main fastening extrusions, each including a base secured to the wall, two spaced apart post walls extending from the base section, and two bent end securing walls extending from the base on opposite sides of each post wall, with a spacing between each post wall and an adjacent bent end securing wall being equal to the wall thickness of one bent end section; and a recess at a first surface of each bent end section which faces a second surface of a respective bent end securing wall, and a projection at the second surface of each bent end securing wall which is adapted to be received in a respective recess.
  • An sound-insulating system combines two functionalities in one modular, hybrid structure, which both dissipates and absorbs sounds.
  • Combination of the geometrical diffuser and absorber of sound in one acoustic system results in a higher dissipation coefficient and sound absorption at the same time.
  • Dissipation of sound results from the specific formation of the front face of panels, which breaks the sound waves to improve sound comfort, reduce reverberation and create an impression of depth. In effect, this implicates user's impression that the room provided with the system is larger than in reality. Improvement of the coefficient of sound absorption is obtained in two ways.
  • the sound-insulating system consists of two groups of elements.
  • the first one is a sound-insulating panel in a form of a wooden spatial (three-dimensional) plate with uneven, irregularly folded front face provided with formed pyramids with a step-changing angle of wall inclination. Smooth folding of the panel surface covers the arches and cavities. Depth of the folds can reach up to 60-80% of panel thickness.
  • a single pyramid resembles two pyramids stacked one on the other with a different angle of wall inclination. While the base pyramid has a truncated apex, in place of which the other smaller pyramid with a different base surface area and different angle of wall inclination is set.
  • the step-changing angle of wall inclination in pyramids being preferably 30° and 40° allows double and single reflections of sound waves, which in turn improves the effectiveness of sound dissipation.
  • the base surface area and height of individual pyramids is preferably different.
  • the changing dimensions and shapes of individual pyramids improves the effectiveness of dissipation of sound waves of the system.
  • the rear wall of the panel is provided with stress-relieving grooves ensuring reduction of stress of a panel, especially one made of wood or wood-derivative materials. This type of dilatation ensures more uniform work of the panel under the impact of moisture and stress. Thanks to those grooves, stress is distributed in the panel in a more uniform way and the panel does not get deformed.
  • dilatation gaps between individual panels There are 3-7 mm dilatation gaps between individual panels. Behaviour of the dilatation gaps between the panels with defined, specific width is important due to the fact that they function similarly to a Helmholtz resonator. The sound wave forcing through the dilatation gaps between the panels loses its energy, thus the sound pressure in the room is reduced.
  • a metal frame mounted on the walls functions as a rack positioned between the surface being finished and the rear face of the panel.
  • the panels which may differ in formation of folds and size and shapes of the pyramids are hanged on the frame.
  • the system according to the model works so that the sound waves at high frequencies are dissipated by the texture and folded front face of the panel. While the sound waves at medium and low frequencies are absorbed thanks to dilatation gaps, sound-insulating materials filling the space behind the panel and resonance of the front face of the panel.
  • the frame thanks to its construction, functions as an absorber of sound waves.
  • the basis of the frame is made by open or half-open profiles fixed vertically to the wall and directed with their open side to towards the surface of mounting.
  • Vertical profiles are fixed to the wall with the use of well-known fittings, such as bolts or anchors.
  • Those profiles are provided with slanted notches (keyways) in which horizontal mounting angle bars are inserted.
  • the angle bar connected with the vertical profile is turned by 45° and blocked in a position resembling the letter "V".
  • the angle bars are provided with horizontal slots located in the lower part of the angle bar close to the longitudinal axis, used for fixing the hangers.
  • the angle bars can be extended by joining several sections with the use of bolts passing through the overlapped sections of two angle bars or with the use of additional link elements.
  • the panels are hanged on the horizontal angle bars and to the rear face of the panels there are profiled hooking hangers with a cross-section resembling the number "1" attached.
  • Each of the hanger plates is provided with a tongue, which is inserted into the slot in the horizontal bar to stabilize the position of the panel and preventing its movement or fall.
  • the wall-mounted sound-insulating system according to the model is characterized by a modular structure, the basic unit of which is a set of four panels and three vertical profiles, four horizontal angle bars and sixteen hooked hangers, as well as a set of pyramidal elements of the sound-insulating material made of glass wool.
  • An exemplary, described basic module has dimensions of 2m x 2m. Each panel is hanged on two parallel horizontal angle bars. The horizontal bars are attached to the vertical profiles in pairs with the vertical spacing of 700 mm kept. While the distance between the lower bar of the upper pair and the upper bar of the lower pair is 300 mm.
  • the system according to this utility model does not require installation on the entire surface of the wall, for improvement of sound-insulating properties it is sufficient to cover only a section of the wall surface. While the increase of effectiveness of sound-insulation of the system is proportional to the coverage of installation of the system on the surface area of walls.
  • the wall-mounted sound-insulating system consists of four wooden panels 1 made of beech plywood with varying linearly folded front face covered on the whole area with pyramids 2 with varying base surface area and height. Dimensions of an exemplary panel 1 are 995mm x 995mm x 40mm (thickness) and the weight is 14.5 kg.
  • the wall of each of the pyramids 2 has a step-changing angle of inclination, which is 30° and 40°.
  • the area of folding covers approx. 3/4 of thickness of panel 1.
  • the rear of each of the panels 1 is provided with stress-relieving grooves 3 that reduce the stress of the panel 1.
  • Panels 1 are hanged on horizontal angle bars 7 provided with slots 8 located at the edge of bending of bar 7. The distance of the rear face of panel 1 from the wall is 50 mm. Bars 7 close to the ends are provided with openings 9 used for installation of bolts or elements joining individual bars 7 with each other.
  • Each of the panels 1 is hanged on two horizontal angle bars 7 with the use of four metal hangers 4 with a hooked shape provided on ends with a tongue 10 inserted into slot 8 in bar 7 and blocking in the position of panel 1.
  • the hangers 4 are attached to the panel 1 with the use of bolts 11 or screws tightened close the corners of panel 1.
  • the horizontal bars 7 are fixed to the vertical profiles 12 by catching the bar 7 directly into slanted cam keyways 13 in the vertical profiles 12 and turned by 45° in the horizontal axis.
  • the keyways 13 are formed so that the horizontal angle bar 7 after catching is blocked inside the vertical profile 12.
  • the vertical profiles 12 are fixed to the wall with the use of anchors 14.
  • the free space between the wall and panel 1 and between the horizontal bars 7 and the vertical profiles 12 is tightly filled with pyramidal sound-insulating elements 15 made of glass wool.
  • the panels 1 are preferably impregnated with a non-flammable substance based on boron.
  • the wall-mounted sound-insulating system according to the utility model has two functions as a diffuser and absorber of sound, ensuring this way a higher level of acoustic comfort. Additionally, thanks to the specific construction of the frame and jointing the frame with individual elements, compensation of wall unevenness is possible. The specific formation of the front face of the panels not only improves the sound-insulating properties, but also allows installation of panels in any position. The panels can be turned in any direction by 90° and they are fixed to the frame in this way. Additionally to the two existing utility models of panels with various grids of folds (arches and cavities), there are many options of panel configurations, which ensures high variations of the surfaces of the entire system. The performed analyses indicate that the system according to the utility model presents the optimum effectiveness of absorption with relation to sound waves at the frequency of 2000Hz to 10000Hz.
  • the system according to the utility model is characterized with a high coefficient of sound absorption and insulation, thanks to which it ensures a more distinct sound without reverberation in large rooms, which results in improved communication and makes it unnecessary to raise the voice.
  • the improvement of acoustic properties of rooms thanks to the use of a hybrid system according to the utility model contributes to reduction of stress, better concentration of children and personnel, and, as a consequence, lower impact of sounds on deterioration and loss of hearing abilities of persons occupying these rooms.
  • An advantage of decorative sound-insulating panels which constitute the visible part of the utility model is also observed in the use of a form that is visually different than that of available flat solutions with perforation.
  • the use of a spatial form (3D) contributes to multi-sense perception and will improve the aesthetic qualities of the interiors.
  • the system as a part of the environment is perceived with various senses, through the three-dimensional structure, color, texture, acoustic properties.
  • the look of the panels ensures a more varying sensual perception, by breaking the monotony of rooms in offices, schools, hospitals, this way improving the comfort of occupation and work.
  • An advantage of the design presented by the utility model is creating a spatial form, which by reflection of light is a varying form depending on the time of day and angle of light. Changes in color intensity contributes in turn to the mental comfort of persons occupying a given environment.

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

Claims (5)

  1. Wandmontierte Akustikstruktur, aufweisend Wandtafeln, einen Montagerahmen, der vertikale Profile (12) und horizontale Winkelstangen (7) aufweist, und Schallisolierungsmaterial (15), das zwischen der Wand und derTafel platziert ist, wobei sich zwischen den Tafeln Ausdehnungsspalten (6) befinden und die Elemente des Schallisolierungsmaterials zwischen den vertikalen Profilen und den horizontalen Winkelstangen platziert sind, während jede der Wandtafeln mittels Aufhängeplatten (4), die mit Befestigungslaschen (10) versehen sind, die in horizontale Schlitze (8) eingeführt werden, die in den Winkelstangen positioniert sind, an mindestens zwei horizontalen Winkelstangen aufgehängt ist, dadurch gekennzeichnet, dass
    die hintere Seite der Tafeln (1) mit spannungsverringernden Nuten (3) versehen ist und die vordere Seite der Tafeln (1) gewellt ist und mit Pyramiden (2) versehen ist, wobei jede der Wände jeder der Pyramiden einen stufenwechselnden Steigungswinkel aufweist und weiterhin die horizontalen Winkelstangen (7) in demontierbarer Weise durch direkte Verbindung mit den vertikalen Profilen (12), die mit schrägen Passfedernuten (13) versehen sind, befestigt sind.
  2. Wandmontierte Akustikstruktur nach Anspruch 1, dadurch gekennzeichnet, dass die horizontalen Winkelstangen (7) mit mindestens zwei Öffnungen (9) an beiden Enden verstehen sind.
  3. Wandmontierte Akustikstruktur nach Anspruch 1, dadurch gekennzeichnet, dass die vordere gewellte vordere Fläche der Tafel (1) mit zwei Bögen und mindestens einem Hohlraum versehen ist.
  4. Wandmontierte Akustikstruktur nach Anspruch 1, dadurch gekennzeichnet, dass die Pyramiden (2) verschiedene Grundflächengrößen und eine unterschiedliche Höhe aufweisen.
  5. Wandmontierte Akustikstruktur nach Anspruch 1, dadurch gekennzeichnet, dass jede der horizontalen Winkelstangen (7) in ihrer endgültigen Position einen "V-förmigen" Querschnitt aufweist.
EP18707971.0A 2017-02-03 2018-01-31 Wandmontierte akustische struktur Active EP3577284B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL12601017 2017-02-03
PCT/IB2018/050605 WO2018142301A1 (en) 2017-02-03 2018-01-31 Wall mounted acoustic structure

Publications (2)

Publication Number Publication Date
EP3577284A1 EP3577284A1 (de) 2019-12-11
EP3577284B1 true EP3577284B1 (de) 2021-04-07

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ID=68419953

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EP18707971.0A Active EP3577284B1 (de) 2017-02-03 2018-01-31 Wandmontierte akustische struktur

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EP (1) EP3577284B1 (de)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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