EP2496784B1 - Profile element for roller shutters - Google Patents

Profile element for roller shutters Download PDF

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Publication number
EP2496784B1
EP2496784B1 EP10771007.1A EP10771007A EP2496784B1 EP 2496784 B1 EP2496784 B1 EP 2496784B1 EP 10771007 A EP10771007 A EP 10771007A EP 2496784 B1 EP2496784 B1 EP 2496784B1
Authority
EP
European Patent Office
Prior art keywords
profile element
sheet material
opening
sound
perforations
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
EP10771007.1A
Other languages
German (de)
French (fr)
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EP2496784A2 (en
Inventor
Stefan BRÄUER
Klaus Griesshammer
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.)
Rehau Automotive SE and Co KG
Original Assignee
Rehau AG and Co
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
Application filed by Rehau AG and Co filed Critical Rehau AG and Co
Priority to PL10771007T priority Critical patent/PL2496784T3/en
Publication of EP2496784A2 publication Critical patent/EP2496784A2/en
Application granted granted Critical
Publication of EP2496784B1 publication Critical patent/EP2496784B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/115—Roller shutters specially adapted for furniture
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B2009/17069—Insulation

Definitions

  • the invention relates to a profile element for shutters, in particular a sound-absorbing roller shutter profile element for cabinet furniture.
  • Such profile elements are from the publications DE 203 08 239 .
  • the known profile elements already include attractive solutions for sound absorption for room acoustics applications.
  • the DE 202005015289 U1 discloses a cabinet furniture with a furniture body and at least one front blind, which has parallel arranged interconnectable profile elements and which is guided in arranged on the furniture body guide, said profile element at least one planar profile body, in which at least one opening is introduced. Furthermore, D1 discloses that a sound-absorbing material is arranged as part of at least one soundproofing element on the profile body of the profile element.
  • the sound-absorbing material may be a fiber material, a nonwoven material, a foamed material, a membrane, in particular a membrane made of plastic.
  • the WO 02/03375 A1 discloses a three-dimensional, microperforated polymer film spaced from a reflective surface over its free ends. At the side of the film spaced apart from the surface different openings are introduced, which are not cylindrical in cross-section but frusto-conical. The openings are arranged so that the wider diameter of the frusto-conical opening spaced from the surface and the smaller diameter of the frusto-conical opening on the wall opposite side of the surface are arranged. The openings are thus arranged funnel-shaped for incident sound. Below the perforated surface of the film thus creates a sound-absorbing space without external access.
  • the DE 10346783 A1 discloses a method for producing sound absorbing surfaces, in particular sound absorbing fabrics by microholing, wherein the fabrics are adjusted beforehand by their weaving and then either by layering the fibers of the fabric, the opening size of the fabric is set as desired or in which an already coated Fabric is heated in a further operation and is opened by pressure differences thereafter, the liquid become plastic in the tissue openings.
  • This fabric is for example a glass fabric and the plastic is a fluoropolymer.
  • microperforated films and microperforated art glass panes which are successfully used for sound absorption.
  • the invention has for its object to produce a profile element economically and inexpensively and to further improve the sound-absorbing properties of the profile element over conventional solutions using novel techniques on.
  • the profile element according to the invention for roller shutters in particular a sound-absorbing roller shutter profile element for cabinet furniture is characterized in that the profile element has a perforated film which extends at least in sections over at least one opening of the profile element to form a sound absorber for room acoustic applications.
  • the sound energy is destroyed in the holes of the perforated, preferably microperforated film.
  • the effectiveness of the sound-absorbing roller shutter profile element as a so-called sound absorber is particularly good when the film is hit by sound waves that are reflected by a reverberant reflector surface.
  • This reflector surface may be part of the profile element or another object.
  • the air oscillates in many juxtaposed perforations approximately as a mass together with the trapped in the space between the film and the reflector surface air as a spring in the manner of a spring / mass system.
  • the profile element according to the invention is part of a roller shutter of a cabinet furniture.
  • the opening penetrates the profile element, so that sound in the closed state of the shutter enters through the opening in the cabinet furniture.
  • the sound is already absorbed by the items stored in the cabinet furniture items such as books, file folders or the like.
  • the unabsorbed part of the sound that has entered is reflected onto the film and absorbed there according to the principle described above.
  • the sound-absorbing properties of the profile element are further improved using novel techniques.
  • profile element for forming a roller shutter with each adjacent further profile elements is in particular articulated connectable.
  • shutters of any length can be assembled in a simple manner.
  • the perforated film is arranged on a front side and / or rear side of a front wall and / or rear wall and / or intermediate wall and / or side wall of the profile element.
  • the perforated film is visibly arranged on a front side of the front wall in order to additionally make a decorative or design contribution to the visual and aesthetic overall impression of the profile element as a decorative element.
  • An arrangement on the back of a front wall and / or intermediate wall of the profile element may be desirable if the perforated film just should not be visible.
  • the perforated foil still functions as a dust catcher, because it prevents the ingress of dust through the opening in the profile element.
  • the perforated film is arranged on at least one side wall of the profile element.
  • the perforated film is formed as a single layer of a thermoplastically processable plastic.
  • the above-mentioned parameter ranges prove to be favorable with regard to, for example, the sound-absorbing properties of the film.
  • Through various forms of perforations are also numerous design and design possibilities given so that the visual and aesthetic overall impression of the profile element equipped with the film can be further improved.
  • the perforated film When used as a design or decorative element, the perforated film may have a colored printing and / or coating, and / or may even be colored opaque or colored translucent.
  • the profile element has at least one acoustic damping chamber. It may be particularly advantageous if the opening opens directly or indirectly, for example. Via a channel in the acoustic damping chamber.
  • the sound can be reflected on the perforated film, where it is absorbed in the perforations according to the principle described above.
  • the profile element forms out of itself a highly effective sound absorber for room acoustics applications.
  • the acoustic damping chamber is formed in a cavity, a recess, a bulge or curvature of the profile element. Due to the shape and size of the acoustic damping chamber, the sound-absorbing properties of the sound-absorbing roller shutter profile element according to the invention can be specifically influenced as a so-called sound absorber.
  • a sound damping material is arranged in the acoustic damping chamber. As a result, the sound-absorbing properties of the profile element can be further improved.
  • the perforated foil is spaced from a reverberant wall portion of the acoustic damping space.
  • the perforated film extends parallel to the reverberant wall portion of the Acoustikampungsraums so that the sound is reflected evenly and absorbed in the perforations according to the principle described above.
  • the reverberant wall section of the acoustic damping chamber can also be curved or parabolic in order to bundle the sound, preferably in the region of the perforated film.
  • the opening is arranged in a front side and / or rear side of a front wall, rear wall and / or intermediate wall of the profile element.
  • the position of the opening may be selected depending on which direction the sound normally strikes the profile element.
  • an opening in the front wall can be arranged. If the sound hits i.d.R. on the front of the profile element, so the opening in the front wall can be arranged. If the sound normally hits the back of the profile element, the opening in the back wall can be provided. If it is desired for the sound to be distributed in the profile element and to enter further subordinate acoustic damping chambers in order, for example, to dampen different sound frequencies, an opening can be provided in one or more intermediate walls.
  • the enclosed volume of the cabinet furniture is used to further improve the sound-absorbing properties of the sound-absorbing roller shutter profile element according to the invention as a so-called sound absorber.
  • openings are regularly and / or irregularly spaced. This allows the sound to penetrate evenly through the perforated film into the openings.
  • At least two openings in the front wall and / or the rear wall and / or the intermediate wall of the profile element are substantially equal, wherein preferably at least two openings of the profile element are aligned with each other. This allows the sound to easily penetrate the profile element.
  • the profile element in a roller shutter of a cabinet furniture can be made in the closed state of the shutter of the volume enclosed in the cabinet furniture use to further improve the sound-absorbing properties of the sound-absorbing roller shutter profile element according to the invention as a so-called sound absorber.
  • the film is cohesively and / or non-positively and / or positively arranged on the profile element, preferably laminated to the profile element.
  • the film has a secure hold on or on the profile element can and meet the sound-absorbing function with high reliability even in long-term applications.
  • the film extends over the entire length in the longitudinal direction of the profile element.
  • the film can cover, for example, the entire front of the profile element.
  • the film is arranged on at least one side surfaces of the profile element.
  • the visual and aesthetic appearance of the profile element can be varied in a particularly simple manner and without any significant manufacturing effort.
  • Another aspect of the invention relates to a cabinet furniture with a roller shutter, which is formed from a plurality of profile elements according to one of the preceding embodiments.
  • Fig. 1 shows a schematic view of a perforated film 2, which is used in the profile element according to the invention is used.
  • the film has a thickness t.
  • the apertures of the perforated film are termed perforations for terminology purposes within the scope of this invention.
  • the perforations with diameter d are, for example, spaced apart by the distance b.
  • Fig. 2 shows a schematic view of the operation of the profile element according to the invention.
  • the sound energy is destroyed in the perforations of the (micro) perforated film 2, which are preferably struck by sound waves at a certain distance D in front of a reverberant reflector surface.
  • the reverberant reflector surface can, as shown, be part of the profile element 1 or part of another object.
  • Fig. 3 shows a perspective view of a first embodiment of the profile element according to the invention, wherein the profile element 1 is formed in a single wall and has an opening 3, which spans the perforated film 2.
  • the perforations of the film 2 are substantially smaller than the openings 3 of the profile element 1, wherein a plurality of perforations are in the region of an opening 3 of the profile element 1.
  • the profile element 1 comprises a visible side or front side 11, which faces a user when used as roller shutter profile element in a cabinet furniture in the closed state of the shutter, and a rear side 12, which faces the cabinet furniture in just this application.
  • the profile element 1 comprises a flat, preferably flat profile section 10, which consists of plastic and can be produced by extrusion in a known manner. It is also conceivable, the profile section 10 at least partially z. B. made of aluminum.
  • the profile element 1 has an opening 3, which penetrates the profile element 1 and which is covered with a perforated film 2, to form a sound absorber for room acoustic applications.
  • a perforated film 2 When used as roller shutter profile element in a cabinet furniture, the sound in the closed state of the shutter can penetrate through the perforated film 2 and the opening 3 in the cabinet furniture.
  • the profile element 1 has in the Presentation in FIG. 3 on the right side via a connecting means which has a fastening bead, which is connected via a film hinge with the profile section 10 articulated.
  • a fastening receptacle On the in FIG. 3 left side of the profile section 10 is a fastening receptacle whose internal dimensions substantially correspond to the outer dimensions of the fastener. As a result, the fastening element of an adjacent profile element can be brought into engagement with the fastening receptacle. By juxtaposing several profile elements a shutter is formed.
  • Fig. 4 shows a perspective view of a second embodiment of the profile element 1 according to the invention, wherein the profile element 1 has an acoustic damping chamber 4, in which an opening 3 in a front wall 13 of the profile element 1 opens, the perforated film 2, the opening 3 in the front wall 13 of the profile element. 1 spans.
  • the profile section 10 is formed in a substantially U-shaped cross-section, wherein the acoustic damping chamber 4 is formed in a bulge or curvature of the profile section 10.
  • the sound entering via the film 2 and the opening 3 on the front side 11 of the profile element 1 into the acoustic damping chamber 4 is reflected onto the film 2 and absorbed there.
  • the opening 3 on the front side 11 of the profile element 1 extends substantially over the entire length of the profile element 1 with a constant width.
  • the reverberant rear wall 12 and the bottom of the profile section 10 is preferably closed, however, as shown, also further openings 3 may be provided.
  • the perforated film 2 extends substantially parallel to the rear wall 12, wherein the distance of the film 2 to the rear wall 12 substantially corresponds to the width of the opening 3 on the front side 11 of the profile element 1.
  • Fig. 5 shows a perspective view of a third embodiment of the profile element 1 according to the invention, wherein the profile element 1 has two acoustic damping chambers 4, into which an opening 3 in the front wall 13 of the profile element 1 or an opening 3 in the rear wall 14 of the profile element 1 opens.
  • the acoustic damping chambers 4 are formed in channel-shaped depressions of the profile element 1 and communicate via an opening 3 in an intermediate wall 15 of the profile element 1. Left and right of the acoustic damping chambers 4 closed hollow chambers 5 are formed in the profile element.
  • the perforated film 2 spans the opening 3 in the front wall 13 of the profile element 1 (as shown) and / or the opening 3 in the rear wall 14 of the profile element. 1
  • the perforated film 2 is arranged not only on the front side 11 of the profile element 1 but also on the two side surfaces.
  • the perforated film 2 can be more cost-effectively fixed to the side surfaces of the profile element 1 without the area of the perforated film 2 attached to the front side 11 of the profile element 1 in the later viewing area being impaired by the production.
  • Another advantage is that when assembling the articulated sound absorbing profile elements can be connected to a shutter this particular when opening and closing in the corners of the cabinet furniture allows a uniform design.
  • the profile element 1 for example, from a recycled polymeric material and to cover both the front 11 and the side surfaces of the profile element 1 by the high-quality perforated film 2, without this being visually recognizable by the later user of the cabinet furniture.
  • the profile element 1 further has openings 3 in its front side 11.
  • openings 3 open into the acoustic damping chambers 4, wherein the centrally arranged acoustic space 4 to the rear side 12 of the profile element 1 is also open.
  • This left and right of it arranged acoustic damping chambers 4 are self-contained hollow chambers in which the sound is fully reflected.
  • each of the Acoustikdämpfungsaki 4 either from the mouth or opening 3 to the intermediate wall 15, 16 or vice versa, from the intermediate wall 15, 16 to the mouth or opening 3, taper.
  • Fig. 6 shows a perspective view of a fourth embodiment of the profile element according to the invention 1.
  • the profile element 1 has two acoustic damping chambers 4, in which an opening 3 in the front wall 13 of the profile element 1 and an opening 3 in the rear wall 14 of the profile element 1 opens ,
  • the acoustic damping chambers 4 are formed in groove-shaped depressions of the profile element 1 and communicate via an opening 3 in an intermediate wall 15, 16 with a central sound passage 6 of the profile element. 1
  • each of the Acoustikdämpfungsaki 4 either from the mouth or opening 3 to the intermediate wall 15, 16 or vice versa, from the intermediate wall 15, 16 to the mouth or opening 3, taper.
  • Two further Acoustikdämpfungsbank 4 which are arranged on the left and right next to the formed in channel-shaped depressions acoustic damping chambers 4, located in open hollow chambers of the profile element 1 and are accessible from the central sound passage 6 via a respective mouth.
  • the perforated film 2 spans the opening 3 in the front wall 13 of the profile element 1 and / or the opening 3 in the rear wall 14 of the profile element.
  • More sound components can penetrate through the opening 3 in the rear wall 14 of the profile element 1, for example. In a cabinet furniture, where they are swallowed by stored items. Reflected sound components strike the film 2 arranged on the rear side 12 of the rear wall 14 and are absorbed there.
  • Fig. 7 shows a perspective view of a fifth embodiment of the profile element 1 according to the invention, wherein the profile element 1 has a central sound passage 6, in which an opening 3 in the front wall 13 of the profile element 1 opens, which spans the perforated film 2.
  • Two acoustic damping chambers which are arranged to the left and right of the central sound passage 6, are each via an orifice of the central sound passage 6 from accessible.
  • More sound components pass through the opening 3 in the intermediate wall 15 in the lower acoustic damping chamber 4, which is formed between the formed in hollow chambers of the profile element 1 acoustic damping chambers 4.
  • the lower acoustic damping chamber 4 can taper either from the mouth or opening 3 to the rear wall 14 or vice versa, from the rear wall 14 to the mouth or opening 3.
  • Further sound components or frequencies can penetrate through the opening 3 in the rear wall 14 of the profile element 1, for example. In a cabinet furniture, where they are swallowed by stored items. Reflected sound components strike the film 2 arranged on the rear side 12 of the rear wall 14 and are absorbed there.
  • Fig. 8 shows a perspective view of a sixth embodiment of the profile element according to the invention, wherein the profile element 1 has an acoustic damping chamber 4, in which an opening in the rear wall 14 of the profile element 1 opens, which spans the perforated film 2.
  • At the front 11 of the profile element 1 is preferably only a colored or colored printed decorative film laminated.
  • the lower acoustic damping chamber 4 can taper either from the mouth or opening 3 to the rear wall 14 or vice versa, from the rear wall 14 to the mouth or opening 3.
  • the invention provides a novel roller shutter profile having an opening in at least one wall and a microperforated film, the perforated film extending at least in sections over the opening in order to form a sound absorber for room acoustic applications.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Building Environments (AREA)

Description

Die Erfindung betrifft ein Profilelement für Rollläden, insbesondere ein schallabsorbierendes Rollladenprofilelement für Schrankmöbel.The invention relates to a profile element for shutters, in particular a sound-absorbing roller shutter profile element for cabinet furniture.

Derartige Profilelemente sind aus den Druckschriften DE 203 08 239 , DE 203 08 240 , DE 20 2005 015 289 , DE 20 2005 015 290 oder DE 10 2006 008 142 bekannt.Such profile elements are from the publications DE 203 08 239 . DE 203 08 240 . DE 20 2005 015 289 . DE 20 2005 015 290 or DE 10 2006 008 142 known.

Die bekannten Profilelemente umfassen bereits ansprechende Lösungen zur Schallabsorption für raumakustische Anwendungen.The known profile elements already include attractive solutions for sound absorption for room acoustics applications.

Die DE 202005015289 U1 offenbart einen Schrankmöbel mit einem Möbelkorpus und wenigstens einer Frontjalousie, die parallel zueinander angeordnete miteinander verbindbare Profilelemente aufweist und die in am Möbelkorpus angeordneten Führungsnuten geführt ist, wobei das Profilelement wenigstens einen flächigen Profilkörper, in dem wenigstens eine Öffnung eingebracht ist, aufweist. Weiterhin offenbart die D1, dass am Profilkörper des Profilelements ein schallabsorbierendes Material als Teil wenigstens eines Schallschutzelementes angeordnet ist. Das schallabsorbierende Material kann dabei ein Fasermaterial, ein Vliesmaterial, ein geschäumtes Material, eine Membran, insbesondere eine Membran aus Kunststoff sein.The DE 202005015289 U1 discloses a cabinet furniture with a furniture body and at least one front blind, which has parallel arranged interconnectable profile elements and which is guided in arranged on the furniture body guide, said profile element at least one planar profile body, in which at least one opening is introduced. Furthermore, D1 discloses that a sound-absorbing material is arranged as part of at least one soundproofing element on the profile body of the profile element. The sound-absorbing material may be a fiber material, a nonwoven material, a foamed material, a membrane, in particular a membrane made of plastic.

Die WO 02/03375 A1 offenbart einen dreidimensional angeordneten, mikroperforierten Polymerfilm, welcher beabstandet zu einer reflektierenden Oberfläche über seine freien Enden angeordnet ist. An der von der Oberfläche beabstandeten Folienseite sind verschiedene Öffnungen eingebracht, die im Querschnitt gesehen nicht zylindrisch ausgebildet sind sondern kegelstumpfförmig. Die Öffnungen sind dabei so angeordnet, dass der breitere Durchmesser der kegelstumpfförmigen Öffnung von der Oberfläche beabstandet und der kleinere Durchmesser der kegelstumpfförmigen Öffnung an der der Wand gegenüberliegenden Seite der Oberfläche angeordnet sind. Die Öffnungen sind somit für auftreffenden Schall trichterförmig angeordnet. Unterhalb der perforierten Fläche der Folie entsteht somit ein schallabsorbierender Raum ohne externe Zugänge.The WO 02/03375 A1 discloses a three-dimensional, microperforated polymer film spaced from a reflective surface over its free ends. At the side of the film spaced apart from the surface different openings are introduced, which are not cylindrical in cross-section but frusto-conical. The openings are arranged so that the wider diameter of the frusto-conical opening spaced from the surface and the smaller diameter of the frusto-conical opening on the wall opposite side of the surface are arranged. The openings are thus arranged funnel-shaped for incident sound. Below the perforated surface of the film thus creates a sound-absorbing space without external access.

Die DE 10346783 A1 offenbart ein Verfahren zur Herstellung von schallabsorbierenden Flächen, insbesondere von schallabsorbierenden Geweben durch Mikrolochung, wobei die Gewebe entsprechend vorher durch ihre Webung eingestellt sind und dann entweder per schichtweiser Belegung der Fasern des Gewebes die Öffnungsgröße des Gewebes wie gewünscht eingestellt wird oder in dem ein bereits beschichtetes Gewebe in einem weiteren Arbeitsgang aufgeheizt wird und durch Druckunterschiede danach, der flüssig gewordene Kunststoff in den Gewebeöffnungen geöffnet wird. Dieses Gewebe ist beispielsweise ein Glasgewebe und der Kunststoff ein Fluorpolymer. Weiterhin wird offenbart, dass es nunmehr auch mikroperforierte Folien und mikroperforierte Kunstglasscheiben geben soll, die erfolgreich zur Schallabsorption eingesetzt werden.The DE 10346783 A1 discloses a method for producing sound absorbing surfaces, in particular sound absorbing fabrics by microholing, wherein the fabrics are adjusted beforehand by their weaving and then either by layering the fibers of the fabric, the opening size of the fabric is set as desired or in which an already coated Fabric is heated in a further operation and is opened by pressure differences thereafter, the liquid become plastic in the tissue openings. This fabric is for example a glass fabric and the plastic is a fluoropolymer. Furthermore, it is disclosed that there are now also microperforated films and microperforated art glass panes, which are successfully used for sound absorption.

Der Erfindung liegt die Aufgabe zugrunde, ein Profilelement wirtschaftlich und kostengünstig herzustellen und die schallabsorbierenden Eigenschaften des Profilelements gegenüber herkömmlichen Lösungen unter dem Einsatz neuartiger Techniken weiter zu verbessern.The invention has for its object to produce a profile element economically and inexpensively and to further improve the sound-absorbing properties of the profile element over conventional solutions using novel techniques on.

Erfindungsgemäß wird diese Aufgabe durch ein Profilelement mit den Merkmalen des Anspruches 1 realisiert.According to the invention this object is achieved by a profile element with the features of claim 1.

Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen ausgeführt.Further advantageous embodiments are set forth in the subclaims.

Das erfindungsgemäße Profilelement für Rollläden, insbesondere ein schallabsorbierendes Rollladenprofilelement für Schrankmöbel zeichnet sich dadurch aus, dass das Profilelement eine perforierte Folie aufweist, die sich zumindest abschnittsweise über wenigstens eine Öffnung des Profilelements erstreckt, um einen Schallabsorber für raumakustische Anwendungen zu bilden.The profile element according to the invention for roller shutters, in particular a sound-absorbing roller shutter profile element for cabinet furniture is characterized in that the profile element has a perforated film which extends at least in sections over at least one opening of the profile element to form a sound absorber for room acoustic applications.

Die Schallenergie wird in den Löchern der perforierten, vorzugsweise mikroperforierten Folie vernichtet.The sound energy is destroyed in the holes of the perforated, preferably microperforated film.

Die Wirksamkeit des schallabsorbierenden Rollladenprofilelementes als sogenannter Schallabsorber ist besonders gut, wenn die Folie von Schallwellen getroffen wird, die von einer schallharten Reflektorfläche reflektiert werden. Diese Reflektorfläche kann Teil des Profilelements oder eines anderen Gegenstands sein. In der perforierten Folie schwingt die Luft in vielen nebeneinander angeordneten Perforationen näherungsweise als Masse zu-sammen mit der im Zwischenraum zwischen Folie und Reflektorfläche eingeschlossenen Luft als Feder nach Art eines Feder/Masse-Systems.The effectiveness of the sound-absorbing roller shutter profile element as a so-called sound absorber is particularly good when the film is hit by sound waves that are reflected by a reverberant reflector surface. This reflector surface may be part of the profile element or another object. In the perforated foil, the air oscillates in many juxtaposed perforations approximately as a mass together with the trapped in the space between the film and the reflector surface air as a spring in the manner of a spring / mass system.

In der bevorzugten Anwendung ist das erfindungsgemäße Profilelement Teil eines Rollladens eines Schrankmöbels. In der einfachsten Ausführung des Profilelements durchdringt die Öffnung das Profilelement, so dass Schall im geschlossenen Zustand des Rollladens durch die Öffnung in das Schrankmöbel eintritt.In the preferred application, the profile element according to the invention is part of a roller shutter of a cabinet furniture. In the simplest embodiment of the profile element, the opening penetrates the profile element, so that sound in the closed state of the shutter enters through the opening in the cabinet furniture.

Der Schall wird bereits durch die im Schrankmöbel eingelagerten Gegenstände wie Bücher, Aktenordner oder dergleichen absorbiert. Der nicht absorbierte Teil des eingetretenen Schalls wird auf die Folie reflektiert und dort nach dem zuvor beschriebenen Prinzip absorbiert. Gegenüber den herkömmlichen Lösungen werden die schallabsorbierenden Eigenschaften des Profilelements unter dem Einsatz neuartiger Techniken weiter verbessert.The sound is already absorbed by the items stored in the cabinet furniture items such as books, file folders or the like. The unabsorbed part of the sound that has entered is reflected onto the film and absorbed there according to the principle described above. Compared to the conventional solutions, the sound-absorbing properties of the profile element are further improved using novel techniques.

Es kann sich als vorteilhaft erweisen, wenn das Profilelement zum Bilden eines Rollladens mit jeweils benachbarten weiteren Profilelementen insbesondere gelenkig verbindbar ist. Dadurch lassen sich in einfacher Weise Rollläden mit beliebiger Länge zusammenstellen.It may prove advantageous if the profile element for forming a roller shutter with each adjacent further profile elements is in particular articulated connectable. As a result, shutters of any length can be assembled in a simple manner.

Es kann sich als hilfreich erweisen, wenn die perforierte Folie an einer Vorderseite und/oder Rückseite einer Vorderwand und/oder Rückwand und/oder Zwischenwand und/oder Seitenwand des Profilelements angeordnet ist.It may prove helpful if the perforated film is arranged on a front side and / or rear side of a front wall and / or rear wall and / or intermediate wall and / or side wall of the profile element.

Vorzugsweise ist die perforierte Folie sichtbar an einer Vorderseite der Vorderwand angeordnet, um zusätzlich als Dekorelement einen designerischen bzw. gestalterischen Beitrag zum optischen und ästhetischen Gesamteindruck des Profilelements zu leisten.Preferably, the perforated film is visibly arranged on a front side of the front wall in order to additionally make a decorative or design contribution to the visual and aesthetic overall impression of the profile element as a decorative element.

Eine Anordnung an der Rückseite einer Vorderwand und/oder Zwischenwand des Profilelements kann erwünscht sein, wenn die perforierte Folie gerade nicht sichtbar sein soll.An arrangement on the back of a front wall and / or intermediate wall of the profile element may be desirable if the perforated film just should not be visible.

In dieser Anordnung erfüllt die perforierte Folie dennoch eine Funktion als Staubfang, da sie das Eindringen von Staub durch die Öffnung in das Profilelement verhindert.In this arrangement, the perforated foil still functions as a dust catcher, because it prevents the ingress of dust through the opening in the profile element.

Es liegt jedoch auch im Rahmen der Erfindung, dass die perforierte Folie an wenigstens einer Seitenwand des Profilelementes angeordnet ist. Dies erlaubt vorteilhafterweise eine Fixierung der Folie an den von vorn nicht sichtbaren Seitenflächen des Profilelementes und führt andererseits dazu, dass bei insbesondere gelenkig zu Rollläden verbundenen Profilelementen beim Öffnen bzw. Schließen desselben, die einander zugewandten Seitenflächen der Profilelemente das gleiche Dekor, gebildet durch die perforierte Folie, aufweisen. Dies zeigt dann besondere Vorteile, wenn das Profilelement aus einem andersartigen bzw. andersfarbigen Werkstoff hergestellt ist, als die daran anzubringende perforierte Folie.However, it is also within the scope of the invention that the perforated film is arranged on at least one side wall of the profile element. This advantageously allows a fixation of the film on the side surfaces of the profile element not visible from the front and on the other hand leads to the same decor, in particular articulated to shutters connected profile elements when opening or closing, the mutually facing side surfaces of the profile elements, formed by the perforated Foil having. This shows particular advantages when the profile element is made of a different or different colored material, as the perforated film to be attached thereto.

Ein weiterer Vorteil wird darin gesehen, dass das Aufbringen der Folie und deren Fixierung an den Seitenflächen des Profilelementes fertigungstechnisch leichter umzusetzen ist, da bekanntermaßen in den Seitenflächen keine Öffnungen eingebracht sind.Another advantage is seen in the fact that the application of the film and its fixation on the side surfaces of the profile element manufacturing technology is easier to implement, since no known openings in the side surfaces are introduced.

In einer bevorzugten Ausführung der Erfindung erfüllt die perforierte Folie zumindest eine der folgenden Anforderungen:

  • Der Folie ist ein- oder mehrschichtig ausgebildet, wobei zumindest eine Schicht aus Kunststoff, vorzugsweise einem thermoplastischen oder duroplastischen Kunststoff, Zellulose, vorzugsweise Papier, Metall oder Keramik besteht.
  • Die Dicke der Folie beträgt 0,01 mm bis 2,5 mm, bevorzugt 0,1 mm bis 2,0 mm und besonders bevorzugt 0,1 mm bis 1,0 mm;
  • Der Durchmesser der Perforationen der Folie beträgt 0,01 mm bis 2,0 mm, bevorzugt 0,1 mm bis 1,0 mm und besonders bevorzugt 0,2 mm bis 0,6 mm;
  • Das Verhältnis der Fläche der Perforationen zur nichtperforierten Fläche der Folie beträgt 0,01 % bis 20 %, bevorzugt 0,1 % bis 15 % und besonders bevorzugt 0,5 % bis 10 %;
In a preferred embodiment of the invention, the perforated film meets at least one of the following requirements:
  • The film is formed on one or more layers, wherein at least one layer of plastic, preferably a thermoplastic or thermosetting plastic, cellulose, preferably paper, metal or ceramic.
  • The thickness of the film is 0.01 mm to 2.5 mm, preferably 0.1 mm to 2.0 mm and particularly preferably 0.1 mm to 1.0 mm;
  • The diameter of the perforations of the film is 0.01 mm to 2.0 mm, preferably 0.1 mm to 1.0 mm and particularly preferably 0.2 mm to 0.6 mm;
  • The ratio of the area of the perforations to the non-perforated surface of the film is from 0.01% to 20%, preferably from 0.1% to 15% and particularly preferably from 0.5% to 10%;

In einer weiteren bevorzugten Ausführung der Erfindung erfüllt die perforierte Folie zumindest eine der folgenden Anforderungen:

  • Die Anzahl der Perforationen der Folie pro Fläche beträgt 1/cm2 bis 100/cm2, bevorzugt 2/cm2 bis 50/cm2 und besonders bevorzugt 5/cm2 bis 10/cm2;
  • Der Abstand der Perforationen der Folie beträgt 1,0 mm bis 10,0 mm, bevorzugt 2,0 mm bis 8,0 mm und besonders bevorzugt 4,0 mm bis 6,0 mm;
  • Zumindest einige der Perforationen der Folie sind im Wesentlichen rund, oval, elliptisch, prismatisch, schlitzförmig, eckig, sternförmig und dgl.;
  • Die Perforationen der Folie sind im Wesentlichen regelmäßig von einander beabstandet angeordnet;
In a further preferred embodiment of the invention, the perforated film meets at least one of the following requirements:
  • The number of perforations of the film per area is 1 / cm 2 to 100 / cm 2 , preferably 2 / cm 2 to 50 / cm 2 and particularly preferably 5 / cm 2 to 10 / cm 2 ;
  • The spacing of the perforations of the film is 1.0 mm to 10.0 mm, preferably 2.0 mm to 8.0 mm and particularly preferably 4.0 mm to 6.0 mm;
  • At least some of the perforations of the film are substantially round, oval, elliptical, prismatic, slot-shaped, angular, star-shaped and the like;
  • The perforations of the film are arranged substantially regularly spaced from each other;

Bevorzugt ist die perforierte Folie einschichtig aus einem thermoplastisch verarbeitbaren Kunststoff ausgebildet. Die oben genanten Parameterbereiche erweisen sich im Hinblick auf bspw. die schallabsorbierenden Eigenschaften der Folie als günstig. Durch verschiedene Formen der Perforationen sind zudem zahlreiche gestalterische und designerische Möglichkeiten gegeben, so dass der optische und ästhetische Gesamteindruck des mit der Folie bestückten Profilelements weiter verbessert werden kann.Preferably, the perforated film is formed as a single layer of a thermoplastically processable plastic. The above-mentioned parameter ranges prove to be favorable with regard to, for example, the sound-absorbing properties of the film. Through various forms of perforations are also numerous design and design possibilities given so that the visual and aesthetic overall impression of the profile element equipped with the film can be further improved.

Bei der Anwendung als Design- oder Dekorelement kann die perforierte Folie eine farbige Bedruckung und/oder Beschichtung aufweisen, und/oder kann selbst farbig opak oder farbig transluzent ausgebildet sein.When used as a design or decorative element, the perforated film may have a colored printing and / or coating, and / or may even be colored opaque or colored translucent.

Es kann von Vorteil sein, wenn das Profilelement zumindest einen Akustikdämpfungsraum aufweist. Dabei kann es besonders vorteilhaft sein, wenn die Öffnung direkt oder indirekt, bspw. über einen Kanal, in den Akustikdämpfungsraum mündet.It may be advantageous if the profile element has at least one acoustic damping chamber. It may be particularly advantageous if the opening opens directly or indirectly, for example. Via a channel in the acoustic damping chamber.

In diesem Akustikdämpfungsraum des Profilelements kann der Schall auf die perforierte Folie reflektiert werden, wo er nach dem eingangs beschriebenen Prinzip in den Perforationen absorbiert wird. In dieser Ausführung bildet das Profilelement aus sich heraus einen hochwirksamen Schallabsorber für raumakustische Anwendungen.In this acoustic damping chamber of the profile element, the sound can be reflected on the perforated film, where it is absorbed in the perforations according to the principle described above. In this embodiment, the profile element forms out of itself a highly effective sound absorber for room acoustics applications.

Es kann sich als nützlich erweisen, wenn der Akustikdämpfungsraum in einem Hohlraum, einer Ausnehmung, einer Ausbuchtung oder Wölbung des Profilelements ausgebildet ist. Durch die Form und Größe des Akustikdämpfungsraums lassen sich die schallabsorbierenden Eigenschaften des erfindungsgemäßen schallabsorbierenden Rollladenprofilelementes als sogenannter Schallabsorber gezielt beeinflussen.It may prove useful if the acoustic damping chamber is formed in a cavity, a recess, a bulge or curvature of the profile element. Due to the shape and size of the acoustic damping chamber, the sound-absorbing properties of the sound-absorbing roller shutter profile element according to the invention can be specifically influenced as a so-called sound absorber.

Es kann von Vorteil sein, wenn zusätzlich ein Schalldämpfungsmaterial in dem Akustikdämpfungsraum angeordnet ist. Dadurch können die schallabsorbierenden Eigenschaften des Profilelements weiter verbessert werden.It may be advantageous if additionally a sound damping material is arranged in the acoustic damping chamber. As a result, the sound-absorbing properties of the profile element can be further improved.

Es kann nützlich sein, wenn die perforierte Folie im Abstand von einem schallharten Wandabschnitt des Akustikdämpfungsraums angeordnet ist. Vorzugsweise erstreckt sich die perforierte Folie parallel zu dem schallharten Wandabschnitt des Akustikdämpfungsraums, so dass der Schall gleichmäßig zurückgeworfen und nach dem eingangs beschriebenen Prinzip in den Perforationen absorbiert wird. Alternativ kann der schallharte Wandabschnitt des Akustikdämpfungsraums auch gekrümmt oder parabolisch gewölbt sein, um den Schall vorzugsweise im Bereich der perforierten Folie zu bündeln.It may be useful if the perforated foil is spaced from a reverberant wall portion of the acoustic damping space. Preferably, the perforated film extends parallel to the reverberant wall portion of the Acoustikampungsraums so that the sound is reflected evenly and absorbed in the perforations according to the principle described above. Alternatively, the reverberant wall section of the acoustic damping chamber can also be curved or parabolic in order to bundle the sound, preferably in the region of the perforated film.

In einer vorteilhaften Weiterbildung der Erfindung ist die Öffnung in einer Vorderseite und/oder Rückseite einer Vorderwand, Rückwand und/oder Zwischenwand des Profilelements angeordnet ist. Die Position der Öffnung kann in Abhängigkeit davon gewählt werden, aus welcher Richtung der Schall normalerweise auf das Profilelement trifft.In an advantageous development of the invention, the opening is arranged in a front side and / or rear side of a front wall, rear wall and / or intermediate wall of the profile element. The position of the opening may be selected depending on which direction the sound normally strikes the profile element.

Trifft der Schall beispielsweise i.d.R. auf die Vorderseite des Profilelements, so kann die Öffnung in der Vorderwand angeordnet werden. Wenn der Schall normalerweise auf die Rückseite des Profilelements trifft, kann die Öffnung in der Rückwand vorgesehen werden. Falls erwünscht ist, dass sich der Schall in dem Profilelement verteilt und in weitere, nebengeordnete Akustikdämpfungsräume eintritt, um bspw. verschiedene Schallfrequenzen zu dämpfen, kann eine Öffnung in einer oder mehreren Zwischenwänden vorgesehen werden.If the sound hits i.d.R. on the front of the profile element, so the opening in the front wall can be arranged. If the sound normally hits the back of the profile element, the opening in the back wall can be provided. If it is desired for the sound to be distributed in the profile element and to enter further subordinate acoustic damping chambers in order, for example, to dampen different sound frequencies, an opening can be provided in one or more intermediate walls.

Bei der Anwendung als Rollladenprofilelement in einem Schrankmöbel kann es erwünscht sein, dass der Schall zunächst über die Folie und die Öffnung in einen oder mehrere Akustikdämpfungsräume eintritt und vor dort teilweise auf die Folie reflektiert wird, und teilweise durch weitere Öffnungen aus den Akustikdämpfungsräumen in das Schrankmöbel eintritt, um dort absorbiert zu werden. Bei dieser Ausführung wird das eingeschlossene Volumen des Schrankmöbels genutzt, um die schallabsorbierenden Eigenschaften des erfindungsgemäßen schallabsorbierenden Rollladenprofilelementes als sogenannter Schallabsorber weiter zu verbessern.When used as a roller shutter profile element in a cabinet furniture, it may be desirable that the sound initially enters the film and the opening in one or more Acoustikdämpfungsräume and is partially reflected there in front of the film, and partly through further openings from the Acoustungsdämpfungsräumen in the cabinet furniture enters to be absorbed there. In this embodiment, the enclosed volume of the cabinet furniture is used to further improve the sound-absorbing properties of the sound-absorbing roller shutter profile element according to the invention as a so-called sound absorber.

Es kann hilfreich sein, wenn in Längsrichtung des Profilelements mehrere voneinander beabstandete Öffnungen angeordnet sind. Durch zwischen den Öffnungen liegende Stege kann die Stabilität des Profilelements verbessert werden.It may be helpful if a plurality of spaced-apart openings are arranged in the longitudinal direction of the profile element. By lying between the openings webs, the stability of the profile element can be improved.

Es kann nützlich sein, wenn die Öffnungen regelmäßig und/oder unregelmäßig voneinander beabstandet sind. Dadurch kann der Schall gleichmäßig über die perforierte Folie in die Öffnungen eindringen.It may be useful if the openings are regularly and / or irregularly spaced. This allows the sound to penetrate evenly through the perforated film into the openings.

Es kann praktisch sein, wenn zumindest zwei Öffnungen in der Vorderwand und/oder der Rückwand und/oder der Zwischenwand des Profilelements im Wesentlichen gleich sind, wobei vorzugsweise zumindest zwei Öffnungen des Profilelements zueinander fluchten. Dadurch kann der Schall das Profilelement leicht durchdringen.It may be practical if at least two openings in the front wall and / or the rear wall and / or the intermediate wall of the profile element are substantially equal, wherein preferably at least two openings of the profile element are aligned with each other. This allows the sound to easily penetrate the profile element.

Beispielsweise bei der Anwendung des Profilelements in einem Rollladen eines Schrankmöbels kann im geschlossenem Zustand des Rollladens von dem im Schrankmöbel eingeschlossenen Volumen Gebrauch gemacht werden, um die schallabsorbierenden Eigenschaften des erfindungsgemäßen schallabsorbierenden Rollladenprofilelementes als sogenannter Schallabsorber weiter zu verbessern.For example, in the application of the profile element in a roller shutter of a cabinet furniture can be made in the closed state of the shutter of the volume enclosed in the cabinet furniture use to further improve the sound-absorbing properties of the sound-absorbing roller shutter profile element according to the invention as a so-called sound absorber.

Es kann sich als vorteilhaft erweisen, wenn die Folie stoffschlüssig und/oder kraftschlüssig und/oder formschlüssig am Profilelement angeordnet ist, vorzugsweise auf das Profilelement kaschiert ist. Dadurch hat die Folie sicheren Halt an bzw. auf dem Profilelement kann und die schallabsorbierende Funktion mit hoher Zuverlässigkeit auch bei Langzeitanwendungen erfüllen.It may prove to be advantageous if the film is cohesively and / or non-positively and / or positively arranged on the profile element, preferably laminated to the profile element. As a result, the film has a secure hold on or on the profile element can and meet the sound-absorbing function with high reliability even in long-term applications.

Es kann von Vorteil sein, wenn sich die Folie über die gesamte Länge in Längsrichtung des Profilelements erstreckt. Bei dieser Ausführung kann die Folie bspw. die gesamte Vorderseite des Profilelements abdecken.It may be advantageous if the film extends over the entire length in the longitudinal direction of the profile element. In this embodiment, the film can cover, for example, the entire front of the profile element.

Weiterhin liegt es im rahmen der Erfindung, dass die Folie an wenigstens einer Seitenflächen des Profilelementes angeordnet ist.Furthermore, it is within the scope of the invention that the film is arranged on at least one side surfaces of the profile element.

Durch Auswahl verschieden dekorierter Folien kann das optische und ästhetische Erscheinungsbild des Profilelements in besonders einfacher Weise und ohne nennenswerten fertigungstechnischen Aufwand variiert werden.By selecting differently decorated films, the visual and aesthetic appearance of the profile element can be varied in a particularly simple manner and without any significant manufacturing effort.

Ein weiterer Aspekt der Erfindung betrifft ein Schrankmöbel mit einem Rollladen, der aus einer Vielzahl von Profilelementen nach einer der vorangegangenen Ausführungen ausgebildet ist.Another aspect of the invention relates to a cabinet furniture with a roller shutter, which is formed from a plurality of profile elements according to one of the preceding embodiments.

Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Kombinationen der Ansprüche oder einzelner Merkmale davon.Preferred embodiments of the invention will become apparent from the combinations of the claims or individual features thereof.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Es zeigen:

Fig. 1
eine schematische Ansicht einer perforierten Folie, die bei dem erfindunggemäßen Profilelement zum Einsatz kommt;
Fig. 2
eine schematische Ansicht der Funktionsweise des erfindungsgemäßen Profilelements;
Fig. 3
eine perspektivische Ansicht eines ersten Ausführungsbeispiels des erfindungsgemäßen Profilelements, wobei das Profilelement einwandig ausgebildet ist und eine Öffnung aufweist, welche die perforierte Folie überspannt;
Fig. 4
eine perspektivische Ansicht eines zweiten Ausführungsbeispiels des erfindungsgemäßen Profilelements, wobei das Profilelement einen Akustikdämpfungsraum aufweist, in welchen eine Öffnung mündet, welche die perforierte Folie überspannt;
Fig. 5
eine perspektivische Ansicht eines dritten Ausführungsbeispiels des erfindungsgemäßen Profilelements, wobei das Profilelement zwei Akustikdämpfungsräume aufweist, in welche jeweils eine Öffnung mündet, wobei die perforierte Folie die Öffnung in der Vorderwand des Profilelements überspannt;
Fig. 6
eine perspektivische Ansicht eines vierten Ausführungsbeispiels des erfindungsgemäßen Profilelements, wobei das Profilelement zwei Akustikdämpfungsräume aufweist, in welche jeweils eine Öffnung mündet, welche die perforierte Folie überspannt, wobei zwei weitere Akustikdämpfungsräume über je eine Mündung von einem zentralen Schalldurchgang des Profilelements zugänglich sind;
Fig. 7
eine perspektivische Ansicht eines fünften Ausführungsbeispiels des erfindungsgemäßen Profilelements, wobei das Profilelement einen zentralen Schalldurchgang aufweist, in welchen die Öffnung mündet, welche die perforierte Folie überspannt, wobei zwei Akustikdämpfungsräume über je eine Mündung von dem zentralen Schalldurchgang zugänglich sind;
Fig. 8
eine perspektivische Ansicht eines sechsten Ausführungsbeispiels des erfindungsgemäßen Profilelements, wobei das Profilelement einen Akustikdämpfungsraum aufweist, in welchen eine Öffnung mündet, welche die perforierte Folie überspannt.
Show it:
Fig. 1
a schematic view of a perforated film, which is used in the inventive profile element used;
Fig. 2
a schematic view of the operation of the profile element according to the invention;
Fig. 3
a perspective view of a first embodiment of the profile element according to the invention, wherein the profile element is formed in a single wall and having an opening which spans the perforated film;
Fig. 4
a perspective view of a second embodiment of the profile element according to the invention, wherein the profile element has an acoustic damping chamber, in which an opening opens, which spans the perforated film;
Fig. 5
a perspective view of a third embodiment of the profile element according to the invention, wherein the profile element has two Acoustikdämpfungsräume, in each of which an opening opens, the perforated film spans the opening in the front wall of the profile element;
Fig. 6
a perspective view of a fourth embodiment of the profile element according to the invention, wherein the profile element has two Acoustikdämpfungsräume, in each of which an opening opens, which spans the perforated film, wherein two further Acoustikdämpfungsräume are accessible via a respective mouth of a central sound passage of the profile element;
Fig. 7
a perspective view of a fifth embodiment of the profile element according to the invention, wherein the profile element has a central sound passage, in which the opening opens, which spans the perforated film, wherein two Acoustikdämpfungsräume are accessible via a respective mouth of the central sound passage;
Fig. 8
a perspective view of a sixth embodiment of the profile element according to the invention, wherein the profile element has an acoustic damping chamber, in which an opening opens, which spans the perforated film.

Detaillierte Beschreibung der bevorzugten AusführungsbeispieleDetailed Description of the Preferred Embodiments

Fig. 1 zeigt eine schematische Ansicht einer perforierten Folie 2, die bei dem erfindungsgemäßen Profilelement zum Einsatz kommt. Die Folie weist eine Dicke t auf. Die Öffnungen der perforierten Folie werden aus terminologischen Gründen im Rahmen dieser Erfindung als Perforationen bezeichnet. Die Perforationen mit Durchmesser d sind bspw. um die Entfernung b voneinander beabstandet. Fig. 1 shows a schematic view of a perforated film 2, which is used in the profile element according to the invention is used. The film has a thickness t. The apertures of the perforated film are termed perforations for terminology purposes within the scope of this invention. The perforations with diameter d are, for example, spaced apart by the distance b.

Fig. 2 zeigt eine schematische Ansicht der Funktionsweise des erfindungsgemäßen Profilelements. Die Schallenergie wird in den Perforationen der (mikro-)perforierten Folie 2 vernichtet, die vorzugsweise in einem gewissen Abstand D vor einer schallharten Reflektorfläche angeordnet von Schallwellen getroffen werden. Die schallharte Reflektorfläche kann, wie dargestellt, Teil des Profilelements 1 sein oder Teil eines anderen Gegenstands. Fig. 2 shows a schematic view of the operation of the profile element according to the invention. The sound energy is destroyed in the perforations of the (micro) perforated film 2, which are preferably struck by sound waves at a certain distance D in front of a reverberant reflector surface. The reverberant reflector surface can, as shown, be part of the profile element 1 or part of another object.

Wenn das Profilelement 1 als Rollladenprofilelement eines Schrankmöbels ausgebildet ist, kann die schallharte Reflektorfläche z. B. Teil des Schrankmöbels oder eines darin eingelagerten Gegenstands sein, insbesondere eines Buchs, Aktenordners oder dergleichen. Näherungsweise lassen sich die physikalischen Effekte in dem durch die Erfindung bereitgestellten schallabsorbierenden Rollladenprofilelementes als sogenannter Schallabsorber wie folgt beschreiben:

  • Die Luft schwingt in vielen nebeneinander angeordneten Öffnungen als Masse zusammen mit der im Zwischenraum der Dicke D eingeschlossenen Luft als Feder nach Art eines Feder/Masse-Systems. Gegenüber ähnlich flächenhaft aufgebauten Helmholtz- oder Lochplatten- Resonatoren wird vorzugsweise ein nur verhältnismäßig kleines Lochflächenverhältnis eingestellt, wobei die Größe der Öffnungen (Durchmesser d) vorzugsweise so klein gewählt wird, dass sie in die Größenordnung der akustischen Grenzschicht gerät.
If the profile element 1 is formed as a roller shutter profile element of a cabinet furniture, the reverberant reflector surface z. B. part of the cabinet furniture or a stored therein Be article, in particular a book, file folder or the like. As an approximation, the physical effects in the sound-absorbing roller shutter profile element provided by the invention can be described as a so-called sound absorber as follows:
  • The air oscillates in many juxtaposed openings as a mass together with the space enclosed in the gap D thickness air as a spring in the manner of a spring / mass system. Compared to similar surface-mounted Helmholtz or perforated plate resonators, only a relatively small hole area ratio is preferably set, wherein the size of the openings (diameter d) is preferably chosen so small that it gets into the order of magnitude of the acoustic boundary layer.

Daraus resultierend wird gegenüber konventionellen Helmholtz- Resonatoren durch nichtadiabate Zustandsänderungen in der unmittelbaren Nähe zu den Lochwänden und infolge der viskosen Reibungskräfte in den Strömungsscherschichten eine den angeregten Luftschwingungen inhärente Dämpfung aktiviert.As a result, attenuation inherent in the excited air vibrations is activated as compared to conventional Helmholtz resonators by non-adiabatic state changes in the immediate vicinity of the hole walls and due to the viscous frictional forces in the flow shear layers.

Fig. 3 zeigt eine perspektivische Ansicht eines ersten Ausführungsbeispiels des erfindungsgemäßen Profilelements, wobei das Profilelement 1 einwandig ausgebildet ist und eine Öffnung 3 aufweist, welche die perforierte Folie 2 überspannt. Fig. 3 shows a perspective view of a first embodiment of the profile element according to the invention, wherein the profile element 1 is formed in a single wall and has an opening 3, which spans the perforated film 2.

Die Perforationen der Folie 2 sind wesentlich kleiner als die Öffnungen 3 des Profilelements 1, wobei sich mehrere Perforationen im Bereich einer Öffnung 3 des Profilelements 1 befinden. Das Profilelement 1 umfasst eine Sichtseite oder Vorderseite 11, die bei der Anwendung als Rollladenprofilelement in einem Schrankmöbel in geschlossenem Zustand des Rollladens einem Benutzer zugewandt ist, und eine Rückseite 12, die bei eben dieser Anwendung dem Schrankmöbel zugewandt ist.The perforations of the film 2 are substantially smaller than the openings 3 of the profile element 1, wherein a plurality of perforations are in the region of an opening 3 of the profile element 1. The profile element 1 comprises a visible side or front side 11, which faces a user when used as roller shutter profile element in a cabinet furniture in the closed state of the shutter, and a rear side 12, which faces the cabinet furniture in just this application.

In der einwandigen Ausführung umfasst das Profilelement 1 einen flächigen, vorzugsweise ebenen Profilabschnitt 10, der aus Kunststoff bestehen und im Extrusionsverfahren in bekannter Weise hergestellt sein kann. Denkbar ist es auch, den Profilabschnitt 10 zumindest abschnittsweise z. B. aus Aluminium herzustellen.In the single-walled embodiment, the profile element 1 comprises a flat, preferably flat profile section 10, which consists of plastic and can be produced by extrusion in a known manner. It is also conceivable, the profile section 10 at least partially z. B. made of aluminum.

Das Profilelement 1 verfügt über eine Öffnung 3, die das Profilelement 1 durchdringt und die mit einer perforierten Folie 2 überspannt ist, um einen Schallabsorber für raumakustische Anwendungen zu bilden. Bei der Anwendung als Rollladenprofilelement in einem Schrankmöbel, kann der Schall in geschlossenem Zustand des Rollladens über die perforierte Folie 2 und die Öffnung 3 in das Schrankmöbel eindringen.The profile element 1 has an opening 3, which penetrates the profile element 1 and which is covered with a perforated film 2, to form a sound absorber for room acoustic applications. When used as roller shutter profile element in a cabinet furniture, the sound in the closed state of the shutter can penetrate through the perforated film 2 and the opening 3 in the cabinet furniture.

Bestimmte Schallanteile werden durch die im Schrankmöbel eingelagerten Gegenstände geschluckt, während die auf die Folie 2 reflektierten Schalleinteile nach dem eingangs beschriebenen Prinzip von der Folie 2 absorbiert werden. Das Profilelement 1 verfügt in der Darstellung in Figur 3 auf der rechten Seite über ein Verbindungsmittel, das einen Befestigungswulst aufweist, der über ein Filmscharnier mit dem Profilabschnitt 10 gelenkig verbunden ist.Certain sound components are swallowed by the objects stored in the cabinet furniture, while the sound components reflected on the film 2 are absorbed by the film 2 according to the principle described above. The profile element 1 has in the Presentation in FIG. 3 on the right side via a connecting means which has a fastening bead, which is connected via a film hinge with the profile section 10 articulated.

Auf der in Figur 3 linken Seite des Profilabschnitts 10 befindet sich eine Befestigungsaufnahme, deren Innenabmessungen im Wesentlichen den Außenabmessungen des Befestigungselements entsprechen. Dadurch kann das Befestigungselement eines benachbarten Profilelements mit der Befestigungsaufnahme in Eingriff gebracht werden. Durch Aneinanderreihen mehrerer Profilelemente wird ein Rollladen gebildet.On the in FIG. 3 left side of the profile section 10 is a fastening receptacle whose internal dimensions substantially correspond to the outer dimensions of the fastener. As a result, the fastening element of an adjacent profile element can be brought into engagement with the fastening receptacle. By juxtaposing several profile elements a shutter is formed.

Die folgenden Ausführungsbeispiele beruhen im Wesentlichen auf dem ersten Ausführungsbeispiel, wobei der Profilabschnitt 10 unterschiedlich ausgestaltet ist. Entsprechende Merkmale sind mit gleichen Bezugszeichen versehen.The following embodiments are based essentially on the first embodiment, wherein the profile section 10 is designed differently. Corresponding features are provided with the same reference numerals.

Im Folgenden werden vorwiegend die unterschiedlichen Merkmale zum ersten Ausführungsbeispiel beschrieben.In the following, mainly the different features of the first embodiment will be described.

Fig. 4 zeigt eine perspektivische Ansicht eines zweiten Ausführungsbeispiels des erfindungsgemäßen Profilelements 1, wobei das Profilelement 1 einen Akustikdämpfungsraum 4 aufweist, in welchen eine Öffnung 3 in einer Vorderwand 13 des Profilelements 1 mündet, wobei die perforierte Folie 2 die Öffnung 3 in der Vorderwand 13 des Profilelements 1 überspannt. Fig. 4 shows a perspective view of a second embodiment of the profile element 1 according to the invention, wherein the profile element 1 has an acoustic damping chamber 4, in which an opening 3 in a front wall 13 of the profile element 1 opens, the perforated film 2, the opening 3 in the front wall 13 of the profile element. 1 spans.

Der Profilabschnitt 10 ist im Querschnitt gesehen im Wesentlichen U-förmig ausgebildet, wobei der Akustikdämpfungsraum 4 in einer Ausbauchung bzw. Wölbung des Profilabschnitts 10 ausgebildet ist. Der über die Folie 2 und die Öffnung 3 an der Vorderseite 11 des Profilelements 1 in den Akustikdämpfungsraum 4 eintretende Schall wird auf die Folie 2 reflektiert und dort absorbiert. Die Öffnung 3 an der Vorderseite 11 des Profilelements 1 erstreckt sich im Wesentlichen über die gesamte Länge des Profilelements 1 mit konstanter Breite.The profile section 10 is formed in a substantially U-shaped cross-section, wherein the acoustic damping chamber 4 is formed in a bulge or curvature of the profile section 10. The sound entering via the film 2 and the opening 3 on the front side 11 of the profile element 1 into the acoustic damping chamber 4 is reflected onto the film 2 and absorbed there. The opening 3 on the front side 11 of the profile element 1 extends substantially over the entire length of the profile element 1 with a constant width.

Die schallharte Rückwand 12 bzw. der Boden des Profilabschnitts 10 ist vorzugsweise geschlossen, allerdings können, wie dargestellt, auch weitere Öffnungen 3 vorgesehen sein. Die perforierte Folie 2 erstreckt sich im Wesentlichen parallel zur Rückwand 12, wobei der Abstand der Folie 2 zur Rückwand 12 im Wesentlichen der Breite der Öffnung 3 an der Vorderseite 11 des Profilelements 1 entspricht.The reverberant rear wall 12 and the bottom of the profile section 10 is preferably closed, however, as shown, also further openings 3 may be provided. The perforated film 2 extends substantially parallel to the rear wall 12, wherein the distance of the film 2 to the rear wall 12 substantially corresponds to the width of the opening 3 on the front side 11 of the profile element 1.

Fig. 5 zeigt eine perspektivische Ansicht eines dritten Ausführungsbeispiels des erfindungsgemäßen Profilelements 1, wobei das Profilelement 1 zwei Akustikdämpfungsräume 4 aufweist, in welche eine Öffnung 3 in der Vorderwand 13 des Profilelements 1 bzw. eine Öffnung 3 in der Rückwand 14 des Profilelements 1 mündet. Fig. 5 shows a perspective view of a third embodiment of the profile element 1 according to the invention, wherein the profile element 1 has two acoustic damping chambers 4, into which an opening 3 in the front wall 13 of the profile element 1 or an opening 3 in the rear wall 14 of the profile element 1 opens.

Die Akustikdämpfungsräume 4 sind in rinnenförmigen Vertiefungen des Profilelements 1 ausgebildet und kommunizieren über eine Öffnung 3 in einer Zwischenwand 15 des Profilelements 1. Links und rechts neben den Akustikdämpfungsräumen 4 sind in dem Profilelement 1 geschlossene Hohlkammern 5 ausgebildet.The acoustic damping chambers 4 are formed in channel-shaped depressions of the profile element 1 and communicate via an opening 3 in an intermediate wall 15 of the profile element 1. Left and right of the acoustic damping chambers 4 closed hollow chambers 5 are formed in the profile element.

Die perforierte Folie 2 überspannt die Öffnung 3 in der Vorderwand 13 des Profilelements 1 (wie dargestellt) und/oder die Öffnung 3 in der Rückwand 14 des Profilelements 1.The perforated film 2 spans the opening 3 in the front wall 13 of the profile element 1 (as shown) and / or the opening 3 in the rear wall 14 of the profile element. 1

In diesem Ausführungsbeispiel ist die perforierte Folie 2 nicht nur an der Vorderseite 11 des Profilelementes 1 sondern auch an den beiden Seitenflächen angeordnet. Hierdurch lässt sich die perforierte Folie 2 in der Fertigung kostengünstiger an den Seitenflächen des Profilelementes 1 fixieren, ohne das der im späteren Sichtbereich an der Vorderseite 11 des Profilelementes 1 angebrachte Bereich der perforierten Folie 2 durch die Fertigung beeinträchtigt ist.In this embodiment, the perforated film 2 is arranged not only on the front side 11 of the profile element 1 but also on the two side surfaces. As a result, the perforated film 2 can be more cost-effectively fixed to the side surfaces of the profile element 1 without the area of the perforated film 2 attached to the front side 11 of the profile element 1 in the later viewing area being impaired by the production.

Ein weiterer Vorteil besteht darin, dass beim Zusammenfügen der gelenkig miteinander verbindbaren Schall absorbierenden Profilelemente zu einem Rollladen dieser insbesondere beim Öffnen und Schließen in den Eckbereichen des Schrankmöbels ein einheitliches Design ermöglicht. Somit ist es vorteilhafter Weise möglich, dass Profilelement 1 beispielsweise aus einem recycelten polymeren Werkstoff herzustellen und durch die hochwertige perforierte Folie 2 sowohl die Vorderseite 11 als auch die Seitenflächen des Profilelementes 1 abzudecken, ohne das dies durch den späteren Nutzer des Schrankmöbels optisch erkennbar ist.Another advantage is that when assembling the articulated sound absorbing profile elements can be connected to a shutter this particular when opening and closing in the corners of the cabinet furniture allows a uniform design. Thus, it is advantageously possible to produce the profile element 1, for example, from a recycled polymeric material and to cover both the front 11 and the side surfaces of the profile element 1 by the high-quality perforated film 2, without this being visually recognizable by the later user of the cabinet furniture.

Weiterhin vorteilhaft wird gesehen, dass beispielsweise bei halb geöffneten bzw. geschlossenen Rollladen im Eckbereich des Schrankmöbels die wirksame Fläche der Schallabsorption durch die dann sichtbaren mit der perforierten Folie 2 beschichteten Seitenflächen des Profilelementes 1, wesentlich erhöht ist.Furthermore, it is advantageously seen that, for example, at half-open or closed shutters in the corner of the cabinet furniture, the effective surface of the sound absorption by the then visible with the perforated film 2 coated side surfaces of the profile element 1, is substantially increased.

Das Profilelement 1 weist weiterhin in seiner Vorderseite 11 Öffnungen 3 auf.The profile element 1 further has openings 3 in its front side 11.

Diese Öffnungen 3 münden in Akustikdämpfungsräume 4, wobei der mittig angeordnete Akustikraum 4 zur Rückseite 12 des Profilelementes 1 ebenfalls geöffnet ist. Dies links und rechts davon angeordneten Akustikdämpfungsräume 4 sind an sich geschlossene Hohlkammern, in denen der Schall vollumfänglich reflektiert wird.These openings 3 open into the acoustic damping chambers 4, wherein the centrally arranged acoustic space 4 to the rear side 12 of the profile element 1 is also open. This left and right of it arranged acoustic damping chambers 4 are self-contained hollow chambers in which the sound is fully reflected.

Je nach dem gewünschten akustischen Effekt kann sich jeder der Akustikdämpfungsräume 4 entweder von der Mündung bzw. Öffnung 3 zur Zwischenwand 15, 16 oder umgekehrt, von der Zwischenwand 15, 16 zur Mündung bzw. Öffnung 3, verjüngen.Depending on the desired acoustic effect, each of the Acoustikdämpfungsräume 4 either from the mouth or opening 3 to the intermediate wall 15, 16 or vice versa, from the intermediate wall 15, 16 to the mouth or opening 3, taper.

Fig. 6 zeigt eine perspektivische Ansicht eines vierten Ausführungsbeispiels des erfindungsgemäßen Profilelements 1. Wie im dritten Ausführungsbeispiel weist das Profilelement 1 zwei Akustikdämpfungsräume 4 auf, in welche eine Öffnung 3 in der Vorderwand 13 des Profilelements 1 bzw. eine Öffnung 3 in der Rückwand 14 des Profilelements 1 mündet. Die Akustikdämpfungsräume 4 sind in rinnenförmigen Vertiefungen des Profilelements 1 ausgebildet und kommunizieren über je eine Öffnung 3 in einer Zwischenwand 15, 16 mit einem zentralen Schalldurchgang 6 des Profilelements 1. Fig. 6 shows a perspective view of a fourth embodiment of the profile element according to the invention 1. As in the third embodiment, the profile element 1 has two acoustic damping chambers 4, in which an opening 3 in the front wall 13 of the profile element 1 and an opening 3 in the rear wall 14 of the profile element 1 opens , The acoustic damping chambers 4 are formed in groove-shaped depressions of the profile element 1 and communicate via an opening 3 in an intermediate wall 15, 16 with a central sound passage 6 of the profile element. 1

Je nach dem gewünschten akustischen Effekt kann sich jeder der Akustikdämpfungsräume 4 entweder von der Mündung bzw. Öffnung 3 zur Zwischenwand 15, 16 oder umgekehrt, von der Zwischenwand 15, 16 zur Mündung bzw. Öffnung 3, verjüngen.Depending on the desired acoustic effect, each of the Acoustikdämpfungsräume 4 either from the mouth or opening 3 to the intermediate wall 15, 16 or vice versa, from the intermediate wall 15, 16 to the mouth or opening 3, taper.

Zwei weitere Akustikdämpfungsräume 4, die links und rechts neben den in rinnenförmigen Vertiefungen ausgebildeten Akustikdämpfungsräumen 4 angeordnet sind, befinden sich in offenen Hohlkammern des Profilelements 1 und sind von dem zentralen Schalldurchgang 6 über je eine Mündung zugänglich. Die perforierte Folie 2 überspannt die Öffnung 3 in der Vorderwand 13 des Profilelements 1 und/oder die Öffnung 3 in der Rückwand 14 des Profilelements 1.Two further Acoustikdämpfungsräume 4, which are arranged on the left and right next to the formed in channel-shaped depressions acoustic damping chambers 4, located in open hollow chambers of the profile element 1 and are accessible from the central sound passage 6 via a respective mouth. The perforated film 2 spans the opening 3 in the front wall 13 of the profile element 1 and / or the opening 3 in the rear wall 14 of the profile element. 1

Der auf die Vorderseite 11 des Profilelements 1 auftreffende Schall tritt über die Folie 2 und die Öffnung 3 in der Vorderwand 13 des Profilelements 1 in den oberen Akustikdämpfungsraum 4 und wird auf die Folie 2 reflektiert, wobei bereits einige Schallanteile absorbiert werden. Über die Öffnung 3 in einer Zwischenwand 15 gelangen weitere Schallanteile in den zentralen Schalldurchgang 6 und von dort in die zwei Akustikdämpfungsräume 4, die links und rechts neben dem zentralen Schalldurchgang 6 offenen Hohlkammern des Profilelements 1 ausgebildet sind, und werden dort absorbiert. Nicht absorbierte Frequenzanteile gelangen über die Öffnung 3 in der Zwischenwand 15 in den unteren Akustikdämpfungsraum 4, wo sie auf die Folie 2 an der Rückseite 12 der Rückwand 14 treffen und absorbiert werden. Weitere Schallanteile können über die Öffnung 3 in der Rückwand 14 des Profilelements 1 bspw. in ein Schrankmöbel eindringen, wo sie von eingelagerten Gegenständen geschluckt werden. Reflektierte Schallanteile treffen auf die an der Rückseite 12 der Rückwand 14 angeordnete Folie 2 und werden dort absorbiert.The incident on the front side 11 of the profile element 1 sound passes through the film 2 and the opening 3 in the front wall 13 of the profile element 1 in the upper Acoustikdämpfungsraum 4 and is reflected on the film 2, wherein already some sound components are absorbed. About the opening 3 in an intermediate wall 15 pass further sound components in the central sound passage 6 and from there into the two Acoustikdämpfungsräume 4, the left and right of the central sound passage 6 open hollow chambers of the profile element 1 are formed, and are absorbed there. Non-absorbed frequency components pass through the opening 3 in the intermediate wall 15 in the lower acoustic damping chamber 4, where they meet the film 2 on the back 12 of the rear wall 14 and are absorbed. More sound components can penetrate through the opening 3 in the rear wall 14 of the profile element 1, for example. In a cabinet furniture, where they are swallowed by stored items. Reflected sound components strike the film 2 arranged on the rear side 12 of the rear wall 14 and are absorbed there.

Fig. 7 zeigt eine perspektivische Ansicht eines fünften Ausführungsbeispiels des erfindungsgemäßen Profilelements 1, wobei das Profilelement 1 einen zentralen Schalldurchgang 6 aufweist, in welchen eine Öffnung 3 in der Vorderwand 13 des Profilelements 1 mündet, welche die perforierte Folie 2 überspannt. Fig. 7 shows a perspective view of a fifth embodiment of the profile element 1 according to the invention, wherein the profile element 1 has a central sound passage 6, in which an opening 3 in the front wall 13 of the profile element 1 opens, which spans the perforated film 2.

Zwei Akustikdämpfungsräume, die links und rechts neben dem zentralen Schalldurchgang 6 angeordnet sind, sind über je eine Mündung von dem zentralen Schalldurchgang 6 aus zugänglich. Über eine mit der Öffnung 3 in der Vorderwand 13 des Profilelements 1 fluchtende Öffnung 3 in der Zwischenwand 15 kommuniziert der Schalldurchgang 6 mit einem unteren Akustikdämpfungsraum 4, in welchen eine Öffnung 3 in einer Rückwand 14 des Profilelements 1 mündet, die eine weitere perforierte Folie 2 überspannt.Two acoustic damping chambers, which are arranged to the left and right of the central sound passage 6, are each via an orifice of the central sound passage 6 from accessible. Via an opening 3 in the front wall 13 of the profile element 1 aligned with the opening 3 in the intermediate wall 15 of the sound passage 6 communicates with a lower acoustic damping chamber 4, in which an opening 3 in a rear wall 14 of the profile element 1 opens, which is another perforated film. 2 spans.

Der auf die Vorderseite 11 des Profilelements 1 auftreffende Schall tritt über die Folie 2 und die Öffnung 3 in der Vorderwand 13 in den zentralen Schalldurchgang 6 ein, und gelangt von dort in die zwei Akustikdämpfungsräume 4, die links und rechts neben dem zentralen Schalldurchgang 6 in offenen Hohlkammern des Profilelements 1 ausgebildet sind, wobei entsprechende Schallanteile bzw. Frequenzen absorbiert werden.The incident on the front side 11 of the profile element 1 sound enters via the film 2 and the opening 3 in the front wall 13 in the central sound passage 6, and passes from there into the two Acoustikdämpfungsräume 4, the left and right of the central sound passage 6 in open hollow chambers of the profile element 1 are formed, with corresponding sound components or frequencies are absorbed.

Weitere Schallanteile gelangen über die Öffnung 3 in der Zwischenwand 15 in den unteren Akustikdämpfungsraum 4, der zwischen den in Hohlkammern des Profilelements 1 ausgebildeten Akustikdämpfungsräumen 4 ausgebildet ist. Je nach dem gewünschten akustischen Effekt kann sich der untere Akustikdämpfungsraum 4 entweder von der Mündung bzw. Öffnung 3 zur Rückwand 14 oder umgekehrt, von der Rückwand 14 zur Mündung bzw. Öffnung 3, verjüngen. Weitere Schallanteile bzw. Frequenzen können über die Öffnung 3 in der Rückwand 14 des Profilelements 1 bspw. in ein Schrankmöbel eindringen, wo sie von eingelagerten Gegenständen geschluckt werden. Reflektierte Schallanteile treffen auf die an der Rückseite 12 der Rückwand 14 angeordnete Folie 2 und werden dort absorbiert.More sound components pass through the opening 3 in the intermediate wall 15 in the lower acoustic damping chamber 4, which is formed between the formed in hollow chambers of the profile element 1 acoustic damping chambers 4. Depending on the desired acoustic effect, the lower acoustic damping chamber 4 can taper either from the mouth or opening 3 to the rear wall 14 or vice versa, from the rear wall 14 to the mouth or opening 3. Further sound components or frequencies can penetrate through the opening 3 in the rear wall 14 of the profile element 1, for example. In a cabinet furniture, where they are swallowed by stored items. Reflected sound components strike the film 2 arranged on the rear side 12 of the rear wall 14 and are absorbed there.

Fig. 8 zeigt eine perspektivische Ansicht eines sechsten Ausführungsbeispiels des erfindungsgemäßen Profilelements, wobei das Profilelement 1 einen Akustikdämpfungsraum 4 aufweist, in welchen eine Öffnung in der Rückwand 14 des Profilelements 1 mündet, welche die perforierte Folie 2 überspannt. An der Vorderseite 11 des Profilelements 1 ist vorzugsweise lediglich eine farbige oder farbig bedruckte Dekorfolie aufkaschiert. Fig. 8 shows a perspective view of a sixth embodiment of the profile element according to the invention, wherein the profile element 1 has an acoustic damping chamber 4, in which an opening in the rear wall 14 of the profile element 1 opens, which spans the perforated film 2. At the front 11 of the profile element 1 is preferably only a colored or colored printed decorative film laminated.

Neuen Text einfügen!!Insert new text !!

Je nach dem gewünschten akustischen Effekt kann sich der untere Akustikdämpfungsraum 4 entweder von der Mündung bzw. Öffnung 3 zur Rückwand 14 oder umgekehrt, von der Rückwand 14 zur Mündung bzw. Öffnung 3, verjüngen.Depending on the desired acoustic effect, the lower acoustic damping chamber 4 can taper either from the mouth or opening 3 to the rear wall 14 or vice versa, from the rear wall 14 to the mouth or opening 3.

Durch die Erfindung wird ein neuartiges Rollladenprofil mit einer Öffnung in zumindest einer Wandung und einer mikroperforierten Folie geschaffen, wobei sich die perforierte Folie zumindest abschnittsweise über die Öffnung erstreckt, um einen Schallabsorber für raumakustische Anwendungen zu bilden.The invention provides a novel roller shutter profile having an opening in at least one wall and a microperforated film, the perforated film extending at least in sections over the opening in order to form a sound absorber for room acoustic applications.

Claims (13)

  1. Profile element (1) for roller shutters, in particular a sound-absorbing roller-shutterprofile element for cabinets, characterized in that the profile element (1) has a perforated sheet material (2) which extends, at least in part, over at least one opening (3) of the profile element (1) in order to form a sound absorber for room-acoustic applications, and in that the perforations of the sheet material (2) are significantly smaller than the openings (3) of the profile element (1), wherein a plurality of perforations are located in the region of an opening (3) of the profile element (1).
  2. Profile element according to Claim 1, characterized in that the perforated sheet material (2) is arranged on a front side (11) and/or rear side (12) of a front wall (13), rear wall (14) and/or intermediate wall (15, 16) and/or side wall of the profile element (1).
  3. Profile element (1) according to one of the preceding claims, characterized in that the perforated sheet material (2) meets at least one of the following requirements:
    a. the sheet material (2) is formed in one or more layers, wherein at least one layer consists of plastics material, preferably a thermoplastic or thermosetting material, cellulose, preferably paper, metal or ceramic material;
    b. the thickness of the sheet material (2) is 0.01 mm to 2.5 mm, preferably 0.1 mm to 2.0 mm and particularly preferably 0.1 mm to 1.0 mm;
    c. the diameter of the perforations/openings in the sheet material (2) is 0.01 mm to 2.0 mm, preferably 0.1 mm to 1.0 mm and particularly preferably 0.2 mm to 0.6 mm;
    d. the ratio of the surface area of the perforations to the non-perforated surface area of the sheet material (2) is 0.01% to 20%, preferably 0.1% to 15% and particularly preferably 0.5% to 10%.
  4. Profile element (1) according to one of the preceding claims, characterized in that the perforated sheet material (2) meets at least one of the following requirements:
    a. the number of perforations in the sheet material (2) per surface area is 1/cm2 to 100/cm2, preferably 2/cm2 to 50/cm2 and particularly preferably 5/cm2 to 10/cm2;
    b. the spacing between the perforations in the sheet material (2) is 1.0 mm to 10.0 mm, preferably 2.0 mm to 8.0 mm and particularly preferably 4.0 mm to 6.0 mm;
    c. at least some of the perforations in the sheet material (2) are essentially round, oval, elliptical, prismatic, slot-like, polygonal, star-shaped and the like;
    d. the perforations in the sheet material (2) are spaced apart essentially regularly from one another.
  5. Profile element (1) according to one of the preceding claims, characterized in that the profile element (1) has at least one acoustic-damping space (4), wherein the opening (3) opens out preferably into the acoustic-damping space (4).
  6. Profile element (1) according to one of the preceding claims, characterized in that the acoustic-damping space (4) is formed in a cavity, a recess, a convexity or curved portion of the profile element (1).
  7. Profile element (1) according to one of the preceding claims, characterized in that the perforated sheet material (2) is arranged in the acoustic-damping space (4).
  8. Profile element according to one of the preceding claims, characterized in that the perforated sheet material (2) is arranged at a distance from a reverberative wall portion of the acoustic-damping space (4).
  9. Profile element according to one of the preceding claims, characterized in that the opening (3) is arranged on a front side (11) and/or rear side (12) of a front wall (13), rear wall (14) and/or intermediate wall (15, 16) of the profile element (1).
  10. Profile element according to one of the preceding claim, characterized in that a plurality of spaced-apart openings (3) are arranged in the longitudinal direction of the profile element (1).
  11. Profile element according to one of the preceding claims, characterized in that the sheet material (2) is arranged integrally and/or in a force-fitting and/or form-fitting manner on the profile element (1).
  12. Profile element according to one of the preceding claims, characterized in that the sheet material (2) extends over the entire longitudinal direction of the profile element (1).
  13. Cabinet having a roller shutter which is formed from a multiplicity of profile elements (1) according to one of the preceding claims.
EP10771007.1A 2009-11-02 2010-10-13 Profile element for roller shutters Active EP2496784B1 (en)

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DE202009014787U DE202009014787U1 (en) 2009-11-02 2009-11-02 Profile element for shutters
PCT/EP2010/006254 WO2011050910A2 (en) 2009-11-02 2010-10-13 Profile element for roller shutters

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EP2496784A2 EP2496784A2 (en) 2012-09-12
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DE (1) DE202009014787U1 (en)
ES (1) ES2436449T3 (en)
PL (1) PL2496784T3 (en)
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DE102012020657A1 (en) * 2012-10-20 2014-04-24 Vkt Velten Kunststofftechnik Gmbh Profiled element for roller shutter i.e. cabinet furniture, has top surface formed in planar shape under condition such that profiled element forms closed surface, and pitch circle-shaped joint chamber formed at front end
DE202012010058U1 (en) 2012-10-20 2012-11-22 Vkt Velten Kunststofftechnik Gmbh Profile element for shutters
EP2767665A1 (en) * 2013-02-18 2014-08-20 Plastil UK Limited Closure arrangement
DE202014100043U1 (en) * 2014-01-07 2015-04-08 Project Kunststoff-Profiltechnik Gmbh & Co. Kg blind slat
FR3113074B1 (en) * 2020-07-30 2022-10-28 Plastil France ACOUSTIC BLADE
CN115012800A (en) * 2022-04-12 2022-09-06 江苏科技大学 Multifunctional intelligent peep-proof roller shutter device capable of absorbing sound and reducing dust and control method thereof

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US6598701B1 (en) * 2000-06-30 2003-07-29 3M Innovative Properties Company Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
DE20308240U1 (en) 2003-05-23 2003-08-14 REHAU AG + Co., 95111 Rehau profile element
DE20308239U1 (en) 2003-05-23 2003-08-14 REHAU AG + Co., 95111 Rehau profile element
DE10346783A1 (en) * 2003-10-08 2005-05-12 Polymade Ges Fuer Innovative T Manufacture of fire-safe, sound-absorbing surfaces, adjusts weave and layers to adjust microperforation opening size, or employs pressure difference to clear plastic from openings
DE202005015290U1 (en) 2005-09-28 2006-12-14 Rehau Ag + Co. Cabinet is closed by roller shutter made up of pairs of interlocking U-profiles enclosing cavity, one or both of interlocking profiles having series of apertures in their surface which reduce noise when shutter is opened or closed
DE202005015289U1 (en) 2005-09-28 2006-12-14 Rehau Ag + Co. Filing cabinet with vertically slatted door, comprises slats made of plastic or aluminum profiles with arrangement of holes
DE102006008142A1 (en) 2006-02-20 2007-08-23 Rehau Ag + Co Profile segment for designing roller blind, has sections, where one section with its side is connected with side of adjacent sections in movable manner by connecting unit so that sections are conveyed from unmounted to mounted condition

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PL2496784T3 (en) 2014-01-31
WO2011050910A2 (en) 2011-05-05
DE202009014787U1 (en) 2011-03-17
ES2436449T3 (en) 2014-01-02
EP2496784A2 (en) 2012-09-12
PT2496784E (en) 2013-11-27
WO2011050910A3 (en) 2011-10-20

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