EP4524954A1 - Procédé de fabrication de panneau acoustique - Google Patents

Procédé de fabrication de panneau acoustique Download PDF

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Publication number
EP4524954A1
EP4524954A1 EP23197138.3A EP23197138A EP4524954A1 EP 4524954 A1 EP4524954 A1 EP 4524954A1 EP 23197138 A EP23197138 A EP 23197138A EP 4524954 A1 EP4524954 A1 EP 4524954A1
Authority
EP
European Patent Office
Prior art keywords
carrier
manufacturing
mineral filler
acoustic panel
sound
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.)
Pending
Application number
EP23197138.3A
Other languages
German (de)
English (en)
Inventor
Uwe Riha
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.)
Xstone Design Ltd
Original Assignee
Xstone Design Ltd
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 Xstone Design Ltd filed Critical Xstone Design Ltd
Priority to EP23197138.3A priority Critical patent/EP4524954A1/fr
Priority to US18/883,604 priority patent/US20250083183A1/en
Publication of EP4524954A1 publication Critical patent/EP4524954A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2201/00—Polymeric substrate or laminate
    • B05D2201/02—Polymeric substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • 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 manufacturing method for an acoustic panel.
  • the present invention further relates to an acoustic panel and a method for dampening sound emissions.
  • acoustics in indoor spaces can be perceived as disturbing or unsuitable for the intended use. This is especially true if several people are present in the room and/or if there are other or additional noise emissions within the room, for example, from machinery, etc.
  • Sound absorbers or acoustic panels are used to improve room acoustics or to equip an interior for recording purposes. During the room planning phase, it can be considered that such elements should be installed or planned in suitable locations to dampen or insulate noise and reverberation.
  • These sound absorbers or acoustic panels are usually panels or flat objects that are arranged within the room to absorb sound.
  • the sound energy is converted into other forms of energy, such as For example, thermal or vibrational energy is converted.
  • Porous structures are often used, such as foams (acoustic foam), wool (rock wool), or PET tiles (polyethylene terephthalate).
  • foams acoustic foam
  • wool rock wool
  • PET tiles polyethylene terephthalate
  • the present invention aims to provide an approach for efficiently improving room acoustics that, on the one hand, enables cost-effective production and, on the other hand, allows for a wide range of different designs in terms of shape and appearance.
  • the present invention relates to an acoustic panel for damping sound emissions comprising a carrier with a mineral filler applied thereto and a structure incorporated into the mineral filler, in particular produced by a method as described above.
  • the present invention relates to a method for dampening sound emissions comprising a step of attaching an acoustic panel as described above to a wall in an interior space.
  • a support made of a sound-absorbing material is first provided.
  • a mineral filler is applied to this support, into which a structure is then introduced. Sound is absorbed by the sound-absorbing material itself. In particular, sound energy or sound waves are converted into heat.
  • the mineral filler and the structure incorporated therein improve the sound-absorbing effect. In particular, reflections or scattering can occur on the filler, allowing a higher proportion of the incident sound to be absorbed by the sound-absorbing material.
  • the acoustic panel produced according to the invention can then be installed in a room, for example on a wall or on the ceiling, in order to improve the room acoustics and contribute to a better spatial feeling.
  • the manufacturing process according to the invention makes it possible to produce acoustic panels that resemble a wide variety of surfaces and, for example, have a concrete or stone look. This opens up a wide range of design options. High sound absorption coefficients are achieved, so that even comparatively small acoustic panels can provide high effectiveness. In addition, design freedom arises, which enables application in a variety of areas.
  • acoustic panels or boards Due to the open structure of the mineral filler, sound waves can preferentially penetrate the upper covering layer and thus improve the sound insulation of the trigger material.
  • the resulting acoustic panels or boards can be manufactured to fit precisely and can therefore be joined or mounted together without the need for joints. Furthermore, it is possible to digitally print the acoustic panels produced according to the invention.
  • the step of applying the mineral filler is applied by directly spreading it onto the substrate and/or by attaching a prefabricated veneer to the substrate, in particular by gluing.
  • the prefabricated veneer preferably comprises filler applied to a fiberglass substrate.
  • a prefabricated veneer can also be used in addition or in supplementation.
  • a filler compound comprising stone powder and acrylate is applied during the application step.
  • a mineral filler compound comprising stone powder and acrylate enables a corresponding improvement in the acoustic effect.
  • stone optics can be achieved, opening up a wide range of different design possibilities. The result is a filler compound that is efficiently processed and yet comparatively cost-effective to produce. Furthermore, a wide range of design options is possible.
  • an oscillating knife in particular an oscillating tangential knife, and/or a computer-assisted milling machine is used to create the structure.
  • the use of an oscillating knife results in efficient and cost-effective production.
  • the oscillating knife can be used in particular in a cutter machine or in a corresponding computer-controlled machine for cutting materials.
  • the oscillating knife can be moved in different directions and allows for a high degree of freedom in the implementation of different patterns.
  • milling can also be used.
  • an oscillating knife enables greater efficiency in terms of fast production with low wear and precise processing of cut edges.
  • a structure is also introduced into the carrier during the step of introducing the structure.
  • a structure with a triangular profile is introduced during the step of introducing the structure.
  • the surface of the carrier can be enlarged if necessary.
  • it can be ensured that the applied filler is completely removed in order to enable direct contact of the incoming sound waves with the carrier.
  • the filler is, so to speak, attached to the The corresponding areas are completely removed to improve sound penetration properties.
  • the introduction of a structure with a triangular profile has proven particularly advantageous with regard to the sound properties generated. In particular, a large surface area is created. Furthermore, efficient insertion is possible due to the ease of tool selection.
  • a triangular profile is defined as a triangular cross-section or a pointed groove or structure.
  • elongated and parallel recesses are introduced during the step of introducing the structure.
  • the recesses preferably have at least a partial triangular profile.
  • the use of several elongated and parallel recesses ensures favorable acoustics. This results in high sound absorption. Furthermore, design options resembling a stone appearance arise, allowing for the adaptation of existing structures.
  • the method comprises a step of printing the acoustic panel before or after the introduction of the structure, preferably after the introduction of the structure.
  • the printing step preferably comprises printing using a digital printing process.
  • An additional printing step enables further design options. This results in a multitude of design possibilities. Furthermore, integration into existing environments can be facilitated or enabled. The use of a digital printing process is particularly advantageous, as it enables efficient and cost-effective processing. It also results in precise design options.
  • a plastic carrier is provided as the carrier, in particular a plastic carrier with a thermoplastic material, preferably polyethylene terephthalate or polyethylene terephthalate felt.
  • a thermoplastic material preferably polyethylene terephthalate or polyethylene terephthalate felt.
  • Such carriers are also used as acoustic panels without an applied structure. They are used as sound absorbers and have advantageous sound absorption properties. Furthermore, the mineral filler can be applied efficiently and permanently. The use of a felt material is particularly advantageous in this regard.
  • a soundproofing panel is provided as the support.
  • the use of a soundproofing panel enables a comparatively cost-effective production of an acoustic panel according to the invention.
  • a carrier with a thickness between 5 mm and 24 mm is provided, preferably between 9 mm and 15 mm. Additionally or alternatively, in the step of applying the mineral filler, this is applied in a thickness between 1 mm and 10 mm, preferably between 2 mm and 4 mm.
  • the use of correspondingly thick carriers or layers of mineral filler results in advantageous acoustic properties with regard to sound absorption.
  • acoustic panels are produced that can be installed comparatively easily and efficiently within an interior space using a method according to the invention for dampening sound emissions.
  • a carrier is understood to mean, in particular, a plate, particularly preferably a rectangular or square plate.
  • a mineral filler can, in particular, comprise a mineral powder and a binder.
  • Application can, in particular, be carried out by troweling. This step can be performed manually or automatically.
  • An oscillating blade is used, in particular, in a corresponding machine tool.
  • the introduced structure is, in particular, two-dimensional (at a constant depth into the filler or into the carrier).
  • FIG. 1 An interior space 10 is schematically indicated, in which an acoustic panel 12 is attached to a wall.
  • an acoustic panel 12 can be attached to a wall or ceiling in order to dampen sound emissions and thus improve the room acoustics.
  • the acoustic panel 12 can be mounted, for example, by screwing or gluing. It is possible for a plurality of acoustic panels 12 to be attached next to one another in order to completely or largely cover a wall. It is also possible for the room to be completely equipped with acoustic panels 12 according to the invention.
  • FIG. 2 An acoustic panel 12 according to the invention is shown schematically.
  • the acoustic panel 12 comprises a carrier 14, onto which a mineral filler 16 is applied.
  • a structure 18 is incorporated into the acoustic panel 12.
  • the carrier 14 can, for example, be a plastic carrier with a thermoplastic material.
  • a PET or PET felt carrier can be used.
  • a mineral filler 16 is applied, in particular troweled, to the carrier 14.
  • This mineral filler 16 can, in particular, be directly applied and comprise stone powder and acrylate.
  • a prefabricated veneer with the filler is provided, onto which the filler is applied. This veneer can then be connected to the carrier, for example by gluing.
  • a fiberglass carrier for example, can be used as the veneer.
  • the introduced structure 18 comprises several parallel recesses.
  • the recesses have a triangular profile and are arranged parallel and straight. It is understood that other shapes, profiles, and arrangements can also be provided.
  • FIG 2 An embodiment of an acoustic panel 12 according to the invention is shown, in which the structure 18 extends through the layer of mineral filler 16 into the carrier 14. However, it is also possible for the structure 16 to extend only within the layer of mineral filler 16.
  • FIG. 3 A manufacturing method according to the invention for an acoustic panel is shown schematically.
  • the method comprises steps of providing S10 a carrier, applying S12 a mineral filler, and introducing S14 a structure.
  • the method also comprises a step of printing S16 the acoustic panel.
  • an acoustic panel can be manufactured as described above.
  • the method can, for example, be carried out fully or partially automatically. It can be designed as an operating method for a corresponding manufacturing device. It is also possible for parts of the steps to be carried out manually.
  • an oscillating knife can be used.
  • an oscillating tangential knife used in a corresponding machine tool can be used.
  • the use of an oscillating knife results in efficient manufacturing. It also provides degrees of freedom in the choice of structure. Thus, a multitude of possible structures can be realized. Both straight and curved structures with the same or different depths can be used. Different or identical profiles can also be used.
  • the printing step S16 is intended to take place after the structure has been applied. However, it is also possible for the printing step S16 to be performed before the mineral filler is applied S14. A digital printing process can be used in this case, as this enables efficient processing.
  • Figure 4 Four different embodiments of acoustic panels 12 according to the invention are shown.
  • the various representations in Figure 4 It can be seen that different shapes of supports with mineral filler applied thereto can be used.
  • different structures 18 can be provided in the supports.
  • the structures 18 can be introduced into the mineral filler and/or the support more or less arbitrarily or in any desired shapes and depths.
  • the use of an oscillating knife for introducing the structures 18 is particularly advantageous, since this type of tool enables a wide range of different structures 18 to be realized.

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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)
  • Building Environments (AREA)
EP23197138.3A 2023-09-13 2023-09-13 Procédé de fabrication de panneau acoustique Pending EP4524954A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23197138.3A EP4524954A1 (fr) 2023-09-13 2023-09-13 Procédé de fabrication de panneau acoustique
US18/883,604 US20250083183A1 (en) 2023-09-13 2024-09-12 Manufacturing process for an acoustic panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23197138.3A EP4524954A1 (fr) 2023-09-13 2023-09-13 Procédé de fabrication de panneau acoustique

Publications (1)

Publication Number Publication Date
EP4524954A1 true EP4524954A1 (fr) 2025-03-19

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ID=88021069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23197138.3A Pending EP4524954A1 (fr) 2023-09-13 2023-09-13 Procédé de fabrication de panneau acoustique

Country Status (2)

Country Link
US (1) US20250083183A1 (fr)
EP (1) EP4524954A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2302620A1 (fr) * 2008-07-17 2011-03-30 Toyota Jidosha Kabushiki Kaisha Matériau absorbant l'impact et le son et structure absorbant le son
EP3477628A1 (fr) * 2016-12-25 2019-05-01 Shizuka Co., Ltd. Panneau acoustique
US20230265663A1 (en) * 2020-03-13 2023-08-24 Champion Link International Corporation Panel and Method of Producing a Panel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2302620A1 (fr) * 2008-07-17 2011-03-30 Toyota Jidosha Kabushiki Kaisha Matériau absorbant l'impact et le son et structure absorbant le son
EP3477628A1 (fr) * 2016-12-25 2019-05-01 Shizuka Co., Ltd. Panneau acoustique
US20230265663A1 (en) * 2020-03-13 2023-08-24 Champion Link International Corporation Panel and Method of Producing a Panel

Also Published As

Publication number Publication date
US20250083183A1 (en) 2025-03-13

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