ACOUSTIC PANEL COMPRISING OFFSET GROOVES

Abstract

The invention relates to an acoustic panel (1) for producing a wall and ceiling lining, comprising a front face (2) and a rear face (3) and recesses (4, 6) which extend from the front face (2) and from the rear face (3) into the acoustic panel. In order to provide an acoustic panel which both prevents the ability to see through from the front face to the absorber and also prevents particles from passing from the absorber through the acoustic panel (1), according to the invention at least one front-face recess and one rear-face recess (6) are arranged so as to be partially offset from one another and comprise a through-opening (7).

Claims

1. An acoustic panel (1) for producing a wall and ceiling covering, comprising a front face (2) and a rear face (3), and recesses (4, 6) which extend from the front face (2) and from the rear face (3) into the acoustic panel (1), wherein at least one front-face recess (4) and one rear-face recess (6) are arranged so as to be offset from one another in sections and comprise a through-opening (7) wherein locking profiles (16), which correspond to one another and which are lockable to one another without the use of adhesive, are arranged on at least two opposing side edges (10a, 10b) and the front-face recesses (4) protrude to below a profile plane (P) of the acoustic panel, wherein the profile plane (P), starting from the front face (2), extends parallel to the front face and rear face (2, 3) at the deepest point of the locking profiles (16).

2. The acoustic panel according to claim 1, wherein the front-face and the rear-face recess (4, 6) overlap one another in the direction perpendicular to the panel plane and the through-opening (7) is arranged in an overlapping portion of the recesses (4, 6).

3. The acoustic panel according to claim 1, wherein, in the case of two recesses (4, 6) forming a through-opening (7), the front-face recess (4) protrudes more deeply into the acoustic panel (1) relative to the rear-face recess (6).

4. The acoustic panel according to claim 1, wherein the ratio between the panel thickness and the depth of the front-face recess (4) and the depth of the rear-face recess (6) is 10:7:6 to 13:9:5.

5. The acoustic panel according to claim 1, wherein the front-face recess (4) has a width ratio of 2.5:3 relative to the rear-face recess (6).

6. The acoustic panel according to claim 1, wherein the recesses (4, 6) are configured as grooves.

7. The acoustic panel according to claim 1, wherein the through-opening (7) extends over the entire length of the front-face recess (4).

8. The acoustic panel according to claim 1, wherein each of the recesses (4, 6) has a fold (13) in the region of a recess base (12).

9. The acoustic panel according to claim 1, wherein the rear-face recesses (4) are configured to open toward the rear face (3).

10. The acoustic panel according to claim 1, wherein the plane formed by the through-opening (7) is located in an oblique manner.

11. The acoustic panel according to claim 1, wherein locking profiles (16) are, in particular, turn-swivel and/or push button profiles.

12. The acoustic panel according to claim 1, wherein in the case of two recesses (4, 6) forming a through-opening (7), the spacing of the rear-face recess (6) from a side edge (10a, 10b) with an upper groove cheek (14a) is smaller relative to the spacing of the front-face recess (4) from the side edge (10a, 10b) with the upper groove cheek (14a).

13. The acoustic panel according to claim 1, wherein the front-face recess (4) in the region up to a depth of 20% is 10% to 50% wider relative to the recess width.

14. A wall and ceiling covering comprising acoustic panels (1) according to claim 1, which are fastened to a substructure, wherein a sound-attenuating absorber is arranged adjoining a rear face (3) of the acoustic panels (1).

15. (canceled)

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The invention is described in more detail hereinafter with reference to a plurality of exemplary embodiments, in which:

[0036] FIG. 1: shows schematically a first embodiment of an acoustic panel in a perspective view;

[0037] FIG. 2: shows schematically the embodiment of the acoustic panel of FIG. 1 in a cross section;

[0038] FIG. 3: shows schematically a second embodiment of the acoustic panel in a perspective view;

[0039] FIG. 4: shows schematically the embodiment of the acoustic panel of FIG. 3 in a cross section.

DETAILED DESCRIPTION

[0040] FIG. 1 shows schematically an acoustic panel 1 according to the invention with a front face 2 and a rear face 3 in a perspective view. The acoustic panel has a carrier board 8 with a decorative laminate coating which forms the front face 2 and a rear-face backing layer (not shown here). Alternatively, the decorative coating and the rear-face coating may also be lacquered-on, laminated-on or similarly applied onto the surface.

[0041] Starting from the front face 2, front-face recesses 4 are incorporated in the acoustic panel 1. The recesses 4 are configured in a slot-shaped manner. The recesses are produced as slot-shaped grooves (see also FIG. 2), i.e. the front-face recesses 4 do not pass entirely through the acoustic panel 1 in the vertical direction V. Moreover, the recesses are configured to be inset, i.e. they do not continue entirely through the acoustic panel in the longitudinal axial direction but they are discontinued in the end regions 5. In order to produce the visual impression of continuous grooves, decorative grooves 15 are incorporated in the surface in the end regions. For each front-face recess 4 a rear-face recess 6 is incorporated in the acoustic panel 1 starting from the rear face 3. The front-face recess 4 and the rear-face recess 6 are connected via a through-opening 7 (see FIGS. 2 and 4).

[0042] The carrier board 8 is made of wood-based material, in this case a fiber board. The upper-face decorative coating and the rear-face backing layer coating, as already mentioned, are not shown here.

[0043] The embodiment of FIG. 3 differs relative to the embodiment of FIG. 1 in that the rear-face recesses 6 are trapezoidal in cross section.

[0044] In FIGS. 2 and 4 the two embodiments are shown in cross section. It is possible to see clearly the corresponding locking profiles 16, which are lockable without the use of adhesive and which are arranged on the side edges 10a, 10b of the acoustic panels 1, and which have not been shown in FIGS. 1 and 3 for the sake of simplicity. The locking profiles 16 have on a first side edge 10a an upper groove cheek 14a and on the second side edge 10b opposing the first side edge a lower groove cheek 14b and are configured in this case as turn-swivel profiles. The locking profiles 16 form a profile plane P.

[0045] It may be clearly seen that the front-face recesses 4, which are configured in a rectangular manner, starting from the front face 2 protrude to below the profile plane P. Starting from the rear face 3, however, the rear-face recesses 6 terminate in the vertical direction V in front of the profile plane P. The front-face and rear-face recess 4, 6 overlap in the vertical direction V.

[0046] The central longitudinal axes M.sub.V oriented in the vertical direction V of the front-face recesses 4 in the direction transversely to the longitudinal axial direction Q of the acoustic panels 1 are arranged offset to the central longitudinal axes M.sub.R of the respective rear-face recess 6 which is connected via a through-opening 7. In other words, the front-face recess 4 and rear-face recess 6 which are respectively connected via a through-opening 7 are arranged offset to one another.

[0047] Due to the prescribed respective depth of the recesses 4, 6, the recesses 4, 6 which are connected via a through-opening 7 are also arranged overlapping in the vertical direction V. Both the front-face recess 4 and the rear-face recess 6 thus form in each case a fold 13 which prevents the view through the acoustic panel 1 from a front face 2 and the passage of particles from the rear face 3. In the embodiment shown, the respective front-face recess 4 is closer to an upper groove cheek 14a of the locking profiles 16 than the respective rear-face recess 6.

[0048] In a further preferred embodiment, but which is not shown here, the rear-face recess 6 is closer to the upper groove cheek 14a relative to the associated front-face recess 4.

[0049] The front-face recesses 4 and rear-face recesses 6 shown in FIG. 2 are shown in each case as grooves with a rectangular cross section. The front-face recesses 4 in this case are ca. 2.5 mm wide, whilst the rear-face recesses 6 are ca. 3 mm wide. For improving the sound absorption, the front-face recess 4 is additionally configured to be widened in the surface region 9, i.e. here in the region of up to ca. 1 mm deep. As a result, a significantly improved absorption of sound waves is implemented in the front-face recess 4.

[0050] In contrast to the embodiment shown in FIG. 2, the embodiment shown in FIG. 4 has rear-face recesses 6 with side surfaces 11, 11b which are arranged obliquely to the vertical direction. The side surfaces 11a, 11b are arranged in this case at an angle of 23° to the vertical V so that the lower-face recess 6 opens (widens) toward the rear face 3. The rear-face recess 6 is thus configured, as already mentioned, to be trapezoidal.

[0051] Whilst in the embodiment shown in FIGS. 1 and 2 the through-openings 7 in each case form a plane oriented parallel to the vertical direction V, the planes of the through-opening 7 formed by the embodiments shown in FIGS. 3 and 4 are arranged at least partially obliquely to the vertical V. The through-opening 7 extends over the entire length of the front-face recess 4.

[0052] Also in FIG. 4 the front-face recess 4 is arranged relative to the associated rear-face recess 6 closer to the upper groove cheek 14a of the longitudinal-side locking profile 16. An embodiment, which is preferred and not shown, also has in this case a reverse arrangement in which the rear-face recess 6 is arranged in the transverse direction Q closer to the upper groove cheek 14a relative to the associated front-face recess 4.

LIST OF REFERENCE NUMERALS

[0053] 1. Acoustic panel [0054] 2. Front face [0055] 3. Rear face [0056] 4. Front-face recess [0057] 5. End region [0058] 6. Rear-face recess [0059] 7. Through-opening [0060] 8. Carrier board [0061] 9. Surface region [0062] 10. Longitudinal-side locking profiles [0063] 10a. First side edge [0064] 10b. Second side edge [0065] 11a. Side surface [0066] 11b. Side surface [0067] 12. Recess base [0068] 13. Fold [0069] 14a. Upper groove cheek [0070] 14b. Lower groove cheek [0071] 15. Decorative grooves [0072] 16. Locking profiles [0073] P Profile plane [0074] V Vertical direction [0075] Q Transversely to longitudinal axial direction [0076] M.sub.V Central longitudinal axis [0077] M.sub.R Central longitudinal axis