Sound-absorbing panels

Abstract

This invention provides a sound-absorbing panel that maintains the sound-absorbing properties of a porous sheet while achieving a beautiful finish. [Solution] The device comprises a plate portion 11 having a core material 111 made of high-density glass wool and a porous sheet 112 disposed on the surface of the core material 111, and an edge portion 12 disposed on the edge of the plate portion 11. The porous sheet 112 is not adhered to the core material 111, and its edge is fixed by the edge portion 12. The edge portion 12 includes a base portion 121 disposed along the end face of the plate portion 11, and a pressing portion 122 attached to the base portion 121 that presses and holds the edge of the porous sheet 112 between itself and the base portion 121. The base portion 121 has a receiving portion 121a into which the pressing portion 122 fits, and an insertion portion 121c connected to the bottom of the receiving portion 121a. The side edge of the porous sheet 112 wraps around from the outer edge side of the receiving portion 121a inward, passes through a through hole 121b, and extends to the insertion portion 121c, and is fixed by the pressing portion 122.

Claims

1. A plate portion having a core material made of high-density glass wool and a porous sheet disposed on the surface of the core material, The plate portion comprises an edge portion disposed on the edge of the plate portion, The sound-absorbing panel is characterized in that the porous sheet is not adhered to the core material, and its edges are fixed by the edges.

2. The aforementioned edge portion is A base portion arranged along the end face of the plate portion, It includes a pressing part that is attached to the base portion and presses and holds the edge of the porous sheet between itself and the base portion, The sound-absorbing panel according to claim 1, characterized in that the porous sheet is held in a state of tension by fixing each of its opposing edges to the edge portion.

3. The base portion is A receiving portion is positioned on the outer edge side of the base portion, has a bottom portion, and has a shape into which the pressing portion fits, It has an insertion portion connected to the bottom of the receiving portion, The receiving portion is provided with a through hole that extends from the bottom to the insertion portion. The perforated sheet has side edges that wrap around from the outer edge side of the receiving portion into the interior of the receiving portion, and extend through the through holes to the insertion portion. The sound-absorbing panel according to claim 2, characterized in that the pressing portion is fixed to the receiving portion with the side edge of the porous sheet extending to the insertion portion.

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