Sound absorbing panel construction

Description

BACKGROUND OF THE INVENTION

[0001] The present invention relates to an improved sound absorbing panel construction.

[0002] Constructions and materials to be used for covering walls to absorb sound energy impinging thereon, and, accordingly, to reduce reflected sound energy, are already known.

[0003] In particular, are known sound absorbing panels made of a powder of a wood material and/or pressed synthetic resin materials, in which a plurality of holes and slots so arranged as to absorb the impinging sound energy are formed.

[0004] However, the above mentioned sound absorbing panels are affected by several drawbacks, which are mainly due to the arrangement of said holes and/or slots and the manner with which they mutually cross.

[0005] In fact, in prior panels of the above mentioned type, the crossing points of said slots, holes, and so on, provide excessively weak regions in the panel structure.

[0006] Thus, the panel can be easily broken, both during its shipment and its installing operations, in particular if the users do not properly handle the panel.

[0007] Moreover, it has been found that also the acoustic characteristics of the above prior panel construction would requite improvements. Sound absorbing panels are known from DE-A-2744382 and from DE- A-10 2004 061138.

SUMMARY OF THE INVENTION

[0008] Thus, the aim of the present invention is to provide a sound absorbing panel construction which is improved with respect to prior like sound absorbing panels.

[0009] Within the scope of the above mentioned aim, a main object of the invention is to provide such a panel construction which has a very high mechanical strength.

[0010] Another object of the invention is to provide such a sound absorbing panel construction which is very efficient in absorbing and dispersing sounds.

[0011] Another important object of the present invention is to provide such a sound absorbing panel construction which can be used in a very broad range of applications, owing to its greatly improved mechanical strength with respect to prior sound absorbing light panel constructions.

[0012] Yet another object of the present invention is to provide such a sound absorbing panel construction which is very reliable and safe in operation.

[0013] Yet another object of the present invention is to provide such a sound absorbing panel construction which can be easily made starting from easily commercially available elements and materials and which, moreover, is very competitive from a mere economic standpoint.

[0014] According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by an improved sound absorbing panel construction, characterized in that said panel construction comprises a body made of a powder of a wood material and/or compacted synthetic resin, said body having an exposed to the view side, facing the outside with the panel in an installed condition, and a rear side.

[0015] Said rear side is provided for facing a wall or other structure thereon the panel is adapted to be assembled.

[0016] Said body comprises, on the exposed to the view side, a plurality of slots having a comparatively small cross-section and a plurality of longitudinal holes or channels which extend parallel to the side surfaces, and being substantially cross arranged with respect to said slots.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Further characteristics and advantages of the present invention will become more apparent hereinafter from the following detailed disclosure of a preferred, though not exclusive, embodiment of the invention, which is illustrated, by way of an indicative, but not limitative, example in the accompanying drawings, where:

Figure 1 is a perspective view of the panel construction according to the present invention;

Figure 2 is a further perspective view of the panel construction including a plurality of slots on both faces thereof, according to a further aspect of the present invention;

Figure 3 is a cross-sectional side view of the panel construction shown in figure 1;

Figure 4 is a further side view of the panel construction shown in figure 1;

Figure 5 is a cross-sectional side view of the panel construction shown in figure 2;

Figure 6 is a top plan view of the panel construction; and

Figure 7 is a front view of the panel construction according to the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] With reference to the number references of the above mentioned figures, the improved sound absorbing panel construction according to the present invention, which has been generally indicated by the reference number 1, comprises a panel construction body 2, made, for example, of a powder of a wood material and/or a compacted or pressed synthetic resin, and having an exposed to the view side 3, i.e. a side which will face the outside environment with the panel in an installed condition, and a rear side 4, which will face a wall or other structure thereon the panel will be assembled.

[0019] More specifically, the body 2 comprises, on the exposed to the view side 3 thereof, a plurality of longitudinal slots 5, having a comparatively small cross section, and extending through the overall longitudinal extension of the body 2.

[0020] According to the present invention, the body 2 comprises a plurality of longitudinal holes or channels 6, extending parallel to the surfaces of the sides 3 and 4, while being substantially cross arranged with respect to the longitudinal slots 5.

[0021] In the shown exemplary embodiment, the longitudinal holes or channels 6 are arranged with an angle of 90° with respect to the longitudinal slots 5.

[0022] Thus, the above arrangement of the longitudinal holes 6 will provide a strong bottom portion 7 in the body 2, corresponding to the panel rear side 4.

[0023] Said bottom portion 7, as shown, is not affected by the longitudinal holes 6, thereby it will have a very high mechanical strength, being free of any weakening regions.

[0024] Moreover, the rear side 4 can comprise a plurality of rear longitudinal slots 8, of a comparatively small cross-section, extending through the overall longitudinal extension of the body 2, said rear longitudinal slots will cross the longitudinal holes or channels 6 thereby providing a labyrinth passage for the sound or acoustic waves entering the front slots 5.

[0025] In this connection it should be pointed out that the provision of the above mentioned rear slots 8 does not substantially weaken the bottom portion 7 of the body 2, since said slots have a very reduced size.

[0026] It has been found that the invention fully achieves the intended aim and objects.

[0027] In fact, the invention provides a sound absorbing panel construction which has a very high mechanical strength and very good acoustical characteristics.

[0028] Moreover, the absorbing panel construction according to the invention has very good aesthetic characteristics.

[0029] In fact, the rear side 4 of the subject panel construction does not comprise holes as included in prior panel constructions and can also be assembled in an exposed to the view condition, even in the embodiment thereof including the rear slots.

[0030] In practicing the invention, the used materials, as well as the contingent size and shapes, can be any, depending on requirements, within the scope of the claims.

Claims

1. A sound absorbing panel construction with very high mechanical strength comprising a single piece panel construction body (2) made of a powder of a wood material and/or a compacted or pressed synthetic resin material, said body (2) having an exposed to the view side (3) provided for facing the outside environment with the panel in an assembled condition, and a rear side (4) facing a wall or other structure the panel will be mounted on, and characterized in that at least said exposed to the view side (3) of said panel body comprises a plurality of first longitudinal comparatively small cross section slots (5), each of said first slots (5) crossing all the holes (6) of a plurality of parallel circular holes (6) extending parallel to the surfaces of the panel sides and each having an axis arranged with an angle of 90° with respect to said longitudinal slots (5).

2. A sound absorbing panel construction, according to claim 1, characterized in that said first longitudinal slots (5) extend through all the length of said body.

3. A sound absorbing panel construction, according to claims 1 and 2, characterized in that said panel rear side (4) also comprises a plurality of second comparatively small cross-section rear slots (8) extending through all the longitudinal extension of said panel body (2), said second slots (8) so crossing said circular holes (6) and being so arranged with respect to said first slots as to provide a labyrinth passage for sound waves entering said first slots (5).

Ansprüche

1. Schalldämmende Paneelkonstruktion mit sehr hoher mechanischer Festigkeit, umfassend einen einstückigen Paneelkonstruktionskörper (2) aus einem Pulver eines Holzmaterials und/oder einem verdichteten oder gepressten Kunstharzmaterial, wobei der Körper (2) eine für das Auge freiliegende Seite (3), die bei zusammengebautem Zustand des Paneels der Außenumgebung zugekehrt vorgesehen ist, und eine Rückseite (4) aufweist, die einer Wand oder anderen Struktur zugekehrt ist, an der das Paneel angebracht werden soll, und dadurch gekennzeichnet, dass zumindest die für das Auge freiliegende Seite (3) des Paneelkörpers mehrere erste Längsschlitze (5) mit vergleichsweise kleinem Querschnitt umfasst, wobei jeder der ersten Schlitze (5) alle die Löcher (6) von mehreren parallelen kreisförmigen Löchern (6), die sich parallel zur Oberfläche der Paneelseiten erstrecken, kreuzt, und jeder eine Achse aufweist, die in einem Winkel von 90° bezüglich der Längsschlitze (5) angeordnet ist.

2. Schalldämmende Paneelkonstruktion nach Anspruch 1, dadurch gekennzeichnet, dass sich erste Längsschlitze (5) über die gesamte Länge des Körpers hinweg erstrecken.

3. Schalldämmende Paneelkonstruktion nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Paneelrückseite (4) außerdem mehrere zweite rückwärtige Schlitze (8) mit vergleichsweise kleinem Querschnitt umfasst, die sich über die gesamte Länge des Paneelkörpers (2) hinweg erstrecken, wobei die zweiten Schlitze (8) dadurch die kreisförmigen Löcher (6) kreuzen und bezüglich der ersten Schlitze derart angeordnet sind, dass sie einen Labyrinthdurchgang für Schallwellen vorsehen, die in die ersten Schlitze (5) eintreten.

Revendications

1. Construction de panneau absorbant acoustique ayant une très grande résistance mécanique comprenant un corps (2) de construction de panneau en une seule pièce composé d'une poudre d'un matériau de bois et/ou un matériau de résine synthétique compactée ou pressée, ledit corps (2) ayant un côté (3) exposé à la vue fourni pour faire face à l'environnement extérieur avec le panneau en état assemblé, et un côté arrière (4) faisant face à une paroi ou à une autre structure sur laquelle le panneau sera monté, et caractérisé en ce qu'au moins ledit côté exposé à la vue (3) dudit corps de panneau comprend une pluralité de premières entailles longitudinales de section transversale relativement petite (5), chacune desdites premières entailles (5) passant à travers tous les orifices (6) d'une pluralité d'orifices circulaires parallèles (6) qui s'étendent parallèlement à la surface des côtés de panneau et chacun ayant un axe agencé avec un angle de 90° par rapport aux dites entailles longitudinales (5).

2. Construction de panneau absorbant acoustique selon la revendication 1, caractérisé en ce que lesdites premières entailles longitudinales (5) s'étendent sur toute la longueur dudit corps.

3. Construction de panneau absorbant acoustique selon les revendications 1 et 2, caractérisé en ce que ledit côté arrière (4) dudit panneau comprend également une pluralité de secondes entailles arrière de section transversale relativement petite (8) qui s'étendent sur toute l'extension longitudinale dudit corps de panneau (2), lesdites secondes entailles (8) passant ainsi à travers lesdits orifices circulaires (6) et étant agencées par rapport aux dites premières entailles de manière à fournir un passage en labyrinthe pour les ondes sonores qui pénètrent dans lesdites premières entailles (5).

Drawing