Acoustic baffle to be arranged in a building

Abstract

An acoustic baffle (1) to be arranged in a building for the absorption of sound propagating there through, the acoustic baffle (1) comprising at least one panel (2) of a sound absorbing material, wherein the baffle (1) comprises at least one edge portion (3) having a recess (4) arranged therein of a size and shape so as to be capable of accommodating a suspension profile (8) in form-fit therein.

Claims

1. Acoustic baffle to be arranged in a building for the absorption of sound propagating there through, the acoustic baffle comprising at least one panel of a sound absorbing material, wherein the acoustic baffle comprises at least one edge portion having a recess arranged therein so as to include and being formed in a first side surface and a second side surface and being of a size and shape so as to be capable of accommodating a suspension profile in form-fit therein, wherein the acoustic baffle is frameless, and wherein the recess extends continuously along the at least one edge portion between the first side surface and the second side surface so that the suspension profile is insertable via the first side surface or the second side surface and is slidable along the recess.

2. Acoustic baffle according to claim 1, wherein the recess has a first section extending perpendicularly to a surface of the at least one edge portion and a second section joined to the first section extending parallel to the surface of the at least one edge portion so as to form a recess capable of accommodating a T-shaped suspension profile therein.

3. Acoustic baffle according to claim 1, wherein the acoustic baffle comprises a first panel portion and a second panel portion which are connected to each other so that one side surface of the first panel portion contacts one side surface of the second panel portion forming the recess at an interface between the first panel portion and the second panel portion.

4. Acoustic baffle according to claim 3, wherein the first panel portion and the second panel portion are folded parts of one single panel.

5. Acoustic baffle according to claim 3, wherein the first panel portion comprises a first slit and the second panel portion comprises a second slit, the first slit and the second slit being aligned so as to form a second section of the recess.

6. Acoustic baffle according to claim 3, wherein the at least one panel comprises a third panel portion arranged between the first panel portion and the second panel portion, and wherein separate V-shaped cut out sections are formed between the first panel portion and the third panel portion and between the second panel portion and the third panel portion, respectively.

7. Acoustic baffle according to claim 1, wherein the acoustic baffle has an overall illustration or decor, continuously and seamlessly extending at least from a front side over a bottom side to a back side of the acoustic baffle.

8. Acoustic baffle according to claim 1 further comprising the suspension profile arranged in the recess.

9. Method for producing an acoustic baffle comprising the steps of: providing a panel of a sound absorbing material; applying an illustration or a decor on at least one main surface of the panel; providing at least one slit in another surface of the panel to form a recess capable of accommodating a suspension profile in form-fit therein; cutting separate V-shaped cut out sections between a first panel portion and a third panel portion and between a second panel portion and the third panel portion, respectively; folding the first panel portion towards the second panel portion so that one side surface of the first panel portion contacts one side surface of the second panel portion; cutting a first slit into the first panel portion and a second slit into the second panel portion so as to form a recess capable of accommodating a suspension profile therein when folded; and arranging the suspension profile in the recess; wherein the acoustic baffle is pushed on the suspension profile such that the suspension profile slides along the recess until its final position is reached.

Description

(1) In the following the invention will be explained in more detail with reference to drawings. Like reference numerals denote similar features throughout the drawings. The drawings show:

(2) FIG. 1: Perspective view on an acoustic baffle according to the invention;

(3) FIG. 2: Perspective view on the acoustic baffle of FIG. 1 which is formed by folding respective panel sections;

(4) FIG. 3: Perspective view on the acoustic baffle of FIG. 2 having means for suspension arranged thereon;

(5) FIG. 4: Perspective of a sound absorbing panel to be folded for producing an acoustic baffle according to the invention; and

(6) FIG. 5: Room of a building having arranged a plurality of acoustic baffles at the ceiling.

(7) FIG. 1 illustrates a frameless acoustic baffle 1 to be arranged at the ceiling in a room (see FIG. 5, Ref. 10) of a building. The acoustic baffle 1 comprises a panel 2 of a porous sound absorbing material (e.g. mineral wool). The baffle 1 further comprises at its upper side an edge portion 3 arranged at the panel 2. The edge portion 3 has a recess 4 arranged therein which is formed in panel 2 extending continuously between a first (front) side surface 21 and a second (back) side surface 22.

(8) The recess 4 is arranged in the middle of edge portion 3 (upper outer surface) and extends into (the inside of) the baffle 1 (i.e. into the panel 2) with a first section 41 extending rectangular to the upper outer surface of the edge portion 3. A second section 42 is joined to the first section 41 and extends parallel to the upper outer surface of the edge portion 3 so as to form a T-shaped recess 4 having a size to be capable of accommodating a T-shaped suspension profile (shown in FIG. 3, Ref. 8) therein. The recess 4 allows for fixing the suspension profile in a mechanically strong connection and allows for a quick installation of acoustic baffle 1 to the ceiling in the room, e.g. by use of a suspension wire.

(9) A foldable acoustic baffle 1 is shown in FIG. 2, wherein the baffle 1 comprises a first panel portion 23, a second panel portion 24 and a third panel portion 25. Two separate V-shaped cut out sections (see FIG. 4) are parallel formed between the first panel portion 23 and the third panel portion 25 and between the second panel portion 24 and the third panel portion 25. In the folded state of the panel 2, the surfaces of the V-shaped cut out sections are in contact to each other (e.g. are glued to each other). The first panel portion 23 and the second panel portions 24 are folded parts of one single panel of sound absorbing material. The recess 4 is arranged at the interface between the first panel portion 23 and the second panel portion 24 so as to extend preferably over the entire width of both panel portions. A second section 42 is joined to the first section 41 in a manner so as to form a T-shaped recess 4 having a size to be capable of accommodating a T-shaped suspension profile. The second section is formed by arranging a slit in the respective panel portions as it will be explained in context of FIG. 4.

(10) The installation of such an acoustic baffle is illustrated in FIG. 3, wherein a suspension profile 8 is arranged in the recess 4. The suspension profile 8 is slid or pushed along the recess 4 until its final position is reached. The suspension profile 8 comprises two openings 81 in which the hook shaped suspension wires 92 are arranged. The opposite ends of the suspension wires are connected to the ceiling (adjustable in length/height) via hanger connectors 91.

(11) A panel 2 to be folded to form an acoustic baffle according to the invention is shown in FIG. 4. The preparation of the panel includes the formation of two V-shaped cut out sections 26, 27. The distance between these cut out sections is chosen to allow for a plan contact of the first panel portion 23 and the second panel portion 24 (when folded). The distance defines the size of the third panel portion 25.

(12) The method for producing an acoustic baffle includes providing a panel 2 of a sound absorbing material. Optionally an illustration or a d?cor (design) is applied on at least one of the main surfaces of the panel 2. Advantageously, the design is applied continuously and seamlessly over one entire surface (outer surface of first, second and third panel portion 23, 24, 24) of the unfolded panel. Two slits 411, 412 are provided (on the opposite side thereto) to form the second section (see FIG. 2; Ref. 42) of the recess of the folded panel.

(13) The first panel portion 23 is folded towards the second panel portion 24 so that one side surface of the first panel portion 23 flatly contacts one side surface of the second panel portion 24 and so that the recess for accommodating the suspension profile is formed. Thereafter the acoustic baffle 1 is pushed on the suspension profile such that the suspension profile slides along the recess until its final position is reached.

(14) A plurality of acoustic baffles 1 can be arranged in a room 10 as shown in FIG. 5, wherein the acoustic baffles 1 can be arranged along a line so as to make a uniformly arranged visual impression to a viewer.