EP3754128B1 - Akustikpaneel mit versetzten nuten - Google Patents

Akustikpaneel mit versetzten nuten Download PDF

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Publication number
EP3754128B1
EP3754128B1 EP19180993.8A EP19180993A EP3754128B1 EP 3754128 B1 EP3754128 B1 EP 3754128B1 EP 19180993 A EP19180993 A EP 19180993A EP 3754128 B1 EP3754128 B1 EP 3754128B1
Authority
EP
European Patent Office
Prior art keywords
face
recess
acoustic panel
recesses
acoustic
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
EP19180993.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3754128A1 (de
Inventor
Roger Braun
Jonathan Wyss
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.)
Swiss Krono Tec AG
Original Assignee
Swiss Krono Tec AG
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
Priority to PL19180993T priority Critical patent/PL3754128T3/pl
Application filed by Swiss Krono Tec AG filed Critical Swiss Krono Tec AG
Priority to EP19180993.8A priority patent/EP3754128B1/de
Priority to PT191809938T priority patent/PT3754128T/pt
Priority to ES19180993T priority patent/ES2911046T3/es
Priority to US17/620,908 priority patent/US12077966B2/en
Priority to CA3142623A priority patent/CA3142623A1/en
Priority to PCT/EP2020/065976 priority patent/WO2020254155A1/de
Priority to CN202080044393.XA priority patent/CN114269996B/zh
Publication of EP3754128A1 publication Critical patent/EP3754128A1/de
Application granted granted Critical
Publication of EP3754128B1 publication Critical patent/EP3754128B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • E04B1/99—Room acoustics, i.e. forms of, or arrangements in, rooms for influencing or directing sound
    • 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
    • E04F13/0889—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 characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E04F13/0894—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 characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with tongue and groove connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/849—Groove or slot type openings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/8495—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the openings going through from one face to the other face of the element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/04—Other details of tongues or grooves
    • E04F2201/043—Other details of tongues or grooves with tongues and grooves being formed by projecting or recessed parts of the panel layers

Definitions

  • the invention relates to an acoustic panel for producing a wall and ceiling covering according to the preamble of claim 1 and a wall and ceiling covering according to the preamble of claim 15.
  • Acoustic panels as in the WO 2012/059899 A2 or the DE 20 2004 021 131 U1described, are known as single-layer as well as two-layer components. In this case, these usually have a carrier plate with a visible side that is designed decoratively. An acoustic absorber is arranged on the rear side opposite the visible side. The visible side with the support plate has recesses through which sound waves occurring in a room penetrate and reach the absorber through the support plate. Depending on the size of the recesses, the absorber is visible through the recesses. This is particularly troublesome when the color of the absorber does not match the color of the carrier plate or the visible side.
  • Another well-known problem is that especially with absorbers made of fibers, due to vibrations or shocks, fibers or even pieces of fabric can become detached from the absorber and trickle through the recesses, for example on the floor of the room.
  • This problem is well known, especially with two-part systems, in which the absorber is first attached to the substrate and then the acoustic panel is mounted on the absorber.
  • a known solution for this is the attachment of a fleece on the back of the acoustic panel, which is color-coordinated with the front and with the trickling properties of the absorber, in order to prevent particles from the absorber from trickling through the recesses.
  • the fleece brings with it various production difficulties. For example, with different basic colors on the front side, ie the visible side of the acoustic panel, different basic colors would also have to be used for the acoustic fleece.
  • the object of the invention is to provide an acoustic panel and a wall and ceiling covering made of acoustic panels that prevent both the view from the front of the absorber and the trickling of particles from the absorber through the acoustic panel.
  • the invention solves the problem by an acoustic panel with the features of claim 1 and a wall and ceiling covering with the features of claim 15.
  • Advantageous developments of the invention are specified in the dependent claims.
  • the inventive acoustic panel for producing a wall and ceiling covering has a front and a rear with recesses extending into the acoustic panel from the front and from the rear.
  • at least one front and one rear recess is offset in sections relative to one another and there is a through-opening between the front and rear recesses.
  • a core concept of the invention is that the recesses in the acoustic panel designed to accommodate the sound waves are designed in two parts. As described, a front recess is introduced into the acoustic panel starting from the front. However, the recess does not penetrate the acoustic panel completely. A second rear recess is introduced from the rear and likewise does not penetrate the acoustic panel completely, but only to the extent that a through-opening is formed between the front and rear recesses arises.
  • the recess on the front side is offset in the acoustic panel to the recess on the back side.
  • the effect of the offset is that, starting from the front, one looks at the offset and thus at the interior of the acoustic panel and not at the absorber, while the offset catches loose fibers or particles from the absorber from the rear.
  • the sound waves penetrating the acoustic panel from the front can continue to penetrate through the through-opening into the absorber.
  • the recesses are arranged and formed in such a way that they extend into the acoustic panel in particular in the vertical direction, i.e. perpendicular to the panel plane.
  • the vertical central axes of the front and rear recesses are thus offset from one another in the horizontal direction.
  • the vertical central axes of the recesses are not congruent.
  • the acoustic panels usually have a carrier plate that is coated on the front with a decorative layer that forms the visible side.
  • the decorative layer can be pressed on, for example, like a synthetic resin laminate, designed as a decorative layer that is painted on and/or as a decorative layer that is laminated on.
  • a possible rear-side coating is usually correspondingly adapted to the front-side coating. The recesses thus protrude through the front and possibly rear coating.
  • the carrier boards can be wood-based panels, such as fibreboard, chipboard or OSB panels.
  • the support plates can also include, for example, composite materials made from, in particular, cellulose-based particles, such as wood or paper, with a corresponding matrix material, such as plastic. Support plates that have plastic fibers can also be used.
  • the carrier plates can in particular also contain fire retardants in order to achieve the necessary fire protection requirements.
  • the recesses each extend from the front or from the rear in the vertical direction (perpendicular to the plane of the panel) to the opposite side (front or rear) of the acoustic panel.
  • the recesses are not completely offset from one another, but only in sections, as a result of which the through-opening is formed.
  • the front and rear recesses are in the direction perpendicular to the panel plane overlap and the through-opening is arranged in particular in an overlapping portion of the recess.
  • the actual depth of the respective bottom of the recess can be designed differently.
  • the absolute depth of the front recess ie the distance from the front to the front recess base, can be significantly less than the distance from the rear recess base to the rear. According to a development of the invention, however, it is provided that with two recesses forming a through-opening, the front recess protrudes deeper into the acoustic panel than the rear recess, which in particular significantly improves the overall view of the front side of the acoustic panel.
  • the ratio between the panel thickness to the depth of the front recess to the depth of the rear recess is between 10:7:6 to is 13:9:5.
  • the panel thickness refers to the entire thickness of the acoustic panel, i.e. including the front and, if applicable, the back coating. Accordingly, in the case of the depth of the front recess, the depth of the front side, i.e. including the possible top-side coating, or in the case of the depth of the rear recess, the depth of the rear side, i.e. including the possible rear-side coating, must also be considered.
  • the width of the recesses is also relevant for the acoustic effect. It has been found that for a particularly good acoustic effect, the front recess has a width ratio of 2.5:3 to the rear recess.
  • a particularly preferred embodiment of the acoustic panels provides that the recesses are designed as grooves, which are in particular in the form of slots in the acoustic panel. Especially when designed as grooves, the preferred width ratio causes a particularly good sound effect.
  • the grooves may be rectangular or square in cross section. They extend, for example, transversely to the longitudinal direction of the panel, but in particular in the direction of the longitudinal axis of the acoustic panel.
  • An optically particularly preferred embodiment also provides that the front recesses are used, ie that the front recesses, in particular the grooves, do not extend over the entire panel length or panel width, but on the respective outer edges there is a panel section that is e.g.
  • the recesses on the underside extend over the entire length of the panel. If a continuous groove look is desired on the front, it is also possible to attach so-called decorative grooves, which are the actual acoustic recesses up to the respective outer edge of the acoustic panel optically lengthen, but only a small depth, for example. Have a depth in the range of 1 to 2 mm.
  • the passage openings can be designed individually.
  • the through-opening can also be a round or oval hole, possibly also a right-angled opening.
  • the through-openings extend over the entire length of the front-side recesses. This ensures that the sound waves penetrating into the recess from the front are guided as far as possible completely through the acoustic panel and, for example, into an absorber.
  • the cross section of the recesses can be designed differently.
  • the recess it is conceivable for the recess to be semicircular, oblique or similar in the area of its recess base.
  • the recesses each have a fold that is present in the region of the bottom of the recess.
  • the fold is in particular designed as a 90° fold, which means that on the one hand the non-transparency from the front side and on the other hand the non-trickleability of particles from the rear side to the front side can be particularly well guaranteed.
  • the recesses on the underside are designed to open towards the rear.
  • the recesses on the underside, starting from the back are trapezoidal in cross section, for example (in particular an isosceles trapezoidal shape), with the short parallel surface of the trapezium forming the recess base.
  • the diagonals of the trapezium) of the recesses are arranged at an angle of 23° +/- 2° to the vertical axis of the acoustic panel. It is particularly advantageous for the recesses on the rear to have the shape of an isosceles trapezium with the above-mentioned angles between the short parallels (Recess base) and the two side faces (diagonals).
  • the recess opening towards the rear enables a further preferred embodiment, according to which the plane formed by the through-opening is inclined to the vertical axis. This significantly improves the possibility of passage for the sound waves from the front to the back.
  • the acoustic panels can be designed in different ways. For example, they can butt against each other.
  • Classic tongue and groove connections are also conceivable.
  • the acoustic panels have, on at least two opposite side edges, locking profiles that correspond to one another and can be locked to one another without adhesive, in particular rotating, pivoting and/or push-button profiles.
  • Such interlocking profiles create a joint-free connection between two acoustic panels that remains in place over the long term. They ensure that there is always a stepless and seamless connection between the individual acoustic panels in the event of swelling and contraction movements of individual acoustic panels or the entire panel surface.
  • the locking profiles simplify the installation of the acoustic panels considerably compared to acoustic panels with classic tongue and groove profiles or acoustic panels without profiles.
  • a profile level is formed by the locking profiles. Starting from the front, this is at the lowest point of the locking profiles and extends parallel to the front and rear.
  • the invention provides that the front recess protrudes below the profile plane of the acoustic panel.
  • the locking profiles mentioned above in particular the turning, swiveling or push button profiles, usually have a first profile with an upper groove cheek and a second locking profile corresponding thereto with a lower groove cheek.
  • the installation of the acoustic panels, especially in the wall area, is usually such that the acoustic panels starting from the side edge with the be mounted on the upper groove cheek.
  • the distance between the rear recess and a side edge with an upper groove cheek is smaller than the distance between the front recess the side edge with the upper groove cheek.
  • a further improvement in the acoustic effectiveness is achieved by a recess which is provided with a fold or two folds in the front area, which increases the width of the recess in the area of the fold.
  • the front recess is 10% to 50% wider than the recess width itself in the area up to a depth of 20% of its total depth.
  • a wall and ceiling covering comprising a multiplicity of acoustic panels of the aforementioned type, which are fastened to a sub-construction, with a sound-reduced absorber being arranged adjacent to the rear.
  • the wall and ceiling covering advantageously has no further protective layer, for example a fleece layer between the back of the acoustic panel and an absorber.
  • the absorber is thus arranged directly on the back of the acoustic panel.
  • the view through is successfully prevented just as the possible trickling of particles from the absorber through the front and rear recesses by the offset arrangement of the front and rear recesses in the acoustic panel.
  • the rear absorber can of course be connected to the rear of the acoustic panel, for example glued, but in particular is not connected to the acoustic panel, but is designed as a separate component.
  • the absorber is either attached directly to the substructure or, if necessary, to a component (e.g. a wall or ceiling) to which the substructure is attached.
  • a component e.g. a wall or ceiling
  • the wall and ceiling covering can also be arranged on an intermediate wall formed by the substructure or on a freely suspended substructure and, for example, also form the intermediate wall or suspended ceiling.
  • figure 1 shows schematically in a perspective view an inventive acoustic panel 1 with a front 2 and a back 3.
  • the acoustic panel has a carrier plate 8 with a decorative laminate coating, which forms the front 2 and a back counteract (not shown here).
  • the decorative coating and the back coating can also be painted, laminated or similarly applied to the surface.
  • front recesses 4 are introduced into the acoustic panel 1 .
  • the recesses 4 are slot-shaped. They are made as slit-shaped grooves (see also figure 2 ), ie that the front recesses 4 do not completely penetrate the acoustic panel 1 in the vertical direction V. Furthermore, the recesses are inset, ie they form the acoustic panel also in the direction of the longitudinal axis, but that they are exposed in the end regions 5.
  • decorative grooves 15 are worked into the surface in the end regions.
  • a rear-side recess 6 is introduced into the acoustic panel 1 starting from the rear side 3 .
  • the front recess 4 and the rear recess 6 are connected via a through opening 7 (see Fig. 2 and 4 ) tied together.
  • the carrier plate 8 is made of wood material, here a fiber board. As already mentioned, the decorative coating on the upper side and the counteracting coating on the back are not shown here.
  • the embodiment off figure 3 differs from the embodiment figure 1 to the effect that the rear recesses 6 are trapezoidal in cross section.
  • the two embodiments are shown in cross section.
  • the locking profiles 16 have an upper groove cheek 14a on a first side edge 10a and a lower groove cheek 14b on the second side edge 10b opposite the first side edge and are designed here as rotating/pivoting profiles.
  • the locking profiles 16 form a profile level P from.
  • the rectangular recesses 4 on the front protrude from the front 2 to below the profile plane P.
  • the rear recesses 6, on the other hand, end in the vertical direction V starting from the rear 3 in front of the profile plane P.
  • the front and rear recesses 4, 6 overlap in the vertical direction V.
  • the central longitudinal axes M v of the front recesses 4, which are aligned in the vertical direction V, are in the direction transverse to the longitudinal axis direction Q of the acoustic panels 1 arranged offset to the central longitudinal axes M R of the respective rear recess 6 connected via a through-opening 7 . That is to say, the front recess 4 and rear recess 6, which are each connected via a through-opening 7, are offset from one another.
  • the recesses 4, 6, which are connected via a through-opening 7, are also arranged in an overlapping manner in the vertical direction V. Both the front recess 4 and the rear recess 6 thus each form a fold 13 which prevents the view through the acoustic panel 1 from a front 2 and the trickling through of particles starting from the rear 3 .
  • the respective front recess 4 is closer to an upper groove cheek 14a of the locking profile 16 than the respective rear recess 6.
  • the rear recess 6 is closer to the upper groove cheek 14a than the associated front recess 4.
  • Front recesses 4 and rear recesses 6 shown are each shown as grooves having a rectangular cross section.
  • the front recesses 4 are approximately 2.5 mm wide, while the rear recesses 6 are approximately 3 mm wide.
  • the front recess 4 is also widened in the surface area 9, ie here in the area of approx. up to 1 mm depth. This results in a significantly improved absorption of the sound waves in the front recess 4.
  • the recess 6 on the rear side is thus formed in a trapezoidal shape.
  • the through-openings 7 each form a plane aligned parallel to the vertical direction V
  • those of the Figures 3 and 4 illustrated embodiments arranged planes of the through-opening 7 at least partially obliquely to the vertical V.
  • the through opening 7 extends over the entire length of the front recess 4.
  • the front recess 4 is arranged closer to the upper groove cheek 14a of the longitudinal locking profile 16 than the associated rear recess 6 .
  • a preferred embodiment that is not shown has an inverted arrangement, in which the rear recess 6 is arranged closer to the upper groove cheek 14a in the transverse direction Q than the associated front recess 4.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
EP19180993.8A 2019-06-18 2019-06-18 Akustikpaneel mit versetzten nuten Active EP3754128B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP19180993.8A EP3754128B1 (de) 2019-06-18 2019-06-18 Akustikpaneel mit versetzten nuten
PT191809938T PT3754128T (pt) 2019-06-18 2019-06-18 Painel acústico com ranhuras deslocadas
ES19180993T ES2911046T3 (es) 2019-06-18 2019-06-18 Panel acústico con ranuras desplazadas
PL19180993T PL3754128T3 (pl) 2019-06-18 2019-06-18 Panel akustyczny z przesuniętymi rowkami
US17/620,908 US12077966B2 (en) 2019-06-18 2020-06-09 Acoustic panel comprising offset grooves
CA3142623A CA3142623A1 (en) 2019-06-18 2020-06-09 Acoustic panel comprising offset grooves
PCT/EP2020/065976 WO2020254155A1 (de) 2019-06-18 2020-06-09 Akustikpaneel mit versetzten nuten
CN202080044393.XA CN114269996B (zh) 2019-06-18 2020-06-09 包括偏置凹槽的声学面板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19180993.8A EP3754128B1 (de) 2019-06-18 2019-06-18 Akustikpaneel mit versetzten nuten

Publications (2)

Publication Number Publication Date
EP3754128A1 EP3754128A1 (de) 2020-12-23
EP3754128B1 true EP3754128B1 (de) 2022-02-16

Family

ID=67003195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19180993.8A Active EP3754128B1 (de) 2019-06-18 2019-06-18 Akustikpaneel mit versetzten nuten

Country Status (8)

Country Link
US (1) US12077966B2 (pl)
EP (1) EP3754128B1 (pl)
CN (1) CN114269996B (pl)
CA (1) CA3142623A1 (pl)
ES (1) ES2911046T3 (pl)
PL (1) PL3754128T3 (pl)
PT (1) PT3754128T (pl)
WO (1) WO2020254155A1 (pl)

Cited By (1)

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DE102023120314A1 (de) * 2023-07-31 2025-02-06 Lignotrend Gmbh & Co. Kg Verkleidungsplatte

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USD1032022S1 (en) * 2022-12-15 2024-06-18 Guangzhou Ylju Sound Insulation Building Materials Co., Ltd. Acoustic panel
BE1031727B1 (nl) * 2023-06-20 2025-02-03 Unilin Bv Akoestisch dempend paneel
BE1031647B1 (nl) * 2023-06-20 2025-04-23 Unilin Bv Akoestisch dempend paneel
EP4480696A1 (en) * 2023-06-20 2024-12-25 Unilin, BV Acoustic dampening panel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023120314A1 (de) * 2023-07-31 2025-02-06 Lignotrend Gmbh & Co. Kg Verkleidungsplatte

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PT3754128T (pt) 2022-04-19
PL3754128T3 (pl) 2022-06-06
ES2911046T3 (es) 2022-05-17
US20220349186A1 (en) 2022-11-03
US12077966B2 (en) 2024-09-03
EP3754128A1 (de) 2020-12-23
CN114269996A (zh) 2022-04-01
CA3142623A1 (en) 2020-12-24
WO2020254155A1 (de) 2020-12-24
CN114269996B (zh) 2024-03-29

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