EP2365182B1 - Method of noise reduction in offices by accoustic absorption in the cupboard - Google Patents

Method of noise reduction in offices by accoustic absorption in the cupboard Download PDF

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Publication number
EP2365182B1
EP2365182B1 EP11002433A EP11002433A EP2365182B1 EP 2365182 B1 EP2365182 B1 EP 2365182B1 EP 11002433 A EP11002433 A EP 11002433A EP 11002433 A EP11002433 A EP 11002433A EP 2365182 B1 EP2365182 B1 EP 2365182B1
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EP
European Patent Office
Prior art keywords
profile
sound
openings
cabinet
profile body
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.)
Revoked
Application number
EP11002433A
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German (de)
French (fr)
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EP2365182A1 (en
Inventor
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
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Rehau AG and Co
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Publication date
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Application filed by Rehau AG and Co filed Critical Rehau AG and Co
Priority to PL11002433T priority Critical patent/PL2365182T3/en
Publication of EP2365182A1 publication Critical patent/EP2365182A1/en
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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
    • E06B9/115—Roller shutters specially adapted for furniture
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/146—Shutters
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets

Definitions

  • the invention relates to a cabinet furniture according to the preamble of claim 1.
  • Cabinet furniture with profile elements are known from the prior art, which are articulated to form a shutter with each adjacent profile elements and which are for opening or closing of cabinet furniture.
  • These existing in profile elements arranged in cabinet furniture shutters from the prior art cause the opening and closing material due itself noises.
  • the cabinet furniture in, for example, open-plan offices with a per se high noise level their use leads to further distribute the sound, as on the surface of the sound is reflected back.
  • the resulting background noise especially in a larger office space, is not conducive to the understanding and working climate of the employees.
  • the object of the invention has been found to improve the known disadvantages of the prior art and to show cabinet furniture, which are economical and inexpensive to produce and which are improved in particular in terms of sound-absorbing properties.
  • the profile element has at least one planar profile body, in which at least one opening is introduced.
  • This solution is simple and has the advantage that the sound can penetrate through the opening in the profile body of the profile element in the cabinet furniture and spread there.
  • the sound is at least partially absorbed in the cupboard furniture.
  • the sound reflected back from the cabinet furniture is now at least partly reflected back into the cupboard furniture by the profile elements of the front blind, so that only a very small portion of the sound is reflected back into the room.
  • the width of the opening is less than half the width of the front wall of the profile body of the profile element, preferably less than a third. It has been found in investigations that inexpensive furniture with front blinds can be produced with these specifications, with good sound absorption effect.
  • a size of the area of all openings of the profile body of the profile element of less than 45% or more than 3% of the surface of the front of the profile body of the profile element leads to dimensionally stable profile elements or front blinds, which depending on the size of the Have surface optimized sound absorption effects.
  • a plurality of spaced openings are provided in the longitudinal direction of the profile body of the profile element. It has also been found to be advantageous if the openings are regularly spaced from each other. As a result, on the one hand, the design of the front blinds formed by the profile elements can be designed in accordance with customer requirements while at the same time optimizing the sound absorption effect. Furthermore, it has proven advantageous that the center distance of the openings is greater than or equal to the extent of the opening in the longitudinal direction of the profile body of the profile element.
  • a soundproofing element is arranged at least in the region of the opening to the opening and can already eliminate large components thereof when the sound penetrates.
  • the penetrating through the openings of the profile body of the profile element sound propagates such that it comes into contact with at least a majority of the surface of the soundproofing element and is absorbed.
  • the Schallabsorbtions can be significantly improved.
  • the soundproofing element is arranged to be movable at least in the region of the opening towards the opening and away from it, so that the penetrating sound moves the soundproofing element in the sound direction and thus contributes to a better absorption of the sound.
  • the soundproofing element is arranged on the front side of the profile body of the profile element, so that in addition to the sound-absorbing properties, design and design possibilities for custom-designed cupboard furniture are advantageously possible.
  • the soundproofing element is arranged on the underside of the profile body of the profile element, so that the openings introduced in the profile body of the profile element channeled the incoming sound to the soundproofing element and the design of a cabinet furniture is the wishes of each customer customizable.
  • the soundproofing element is arranged both on the front side and on the underside of the profile body of the profile element, which leads to even more optimized soundproofing properties of the cabinet furniture.
  • the formation of the soundproofing element as a substantially mat-shaped leads to advantageous production costs of such inventive cabinet furniture.
  • the sound-absorbing material may be a fiber material, with which it is possible to inexpensively achieve good sound-absorbing properties of the cabinet furniture in a simple manner.
  • the sound-absorbing material is a non-woven material, which is characterized by very good sound-absorbing properties and also a very good processability.
  • the soundproofing element can be formed by a membrane, for example made of plastic. With such a membrane, material-specifically targeted desired sound frequencies can be influenced or absorbed. Furthermore, it is advantageously seen that the soundproofing element extends over the entire length of the profile element, which leads to inexpensive cabinet furniture with optimized Schallabsorbtions für assupra.
  • the profile body and or the profile element is formed so that it has fastening devices for fastening the soundproofing element, so that a cost-effective production of such profile elements with optimized Schallabsorbtions für satusky satusky satusky satusky satusky satusky satusky satusky satusky satusky satusky satusky satusky s, etc.
  • the soundproofing element is connected over its entire surface to the profile body of the profile element, which enables cost-effective optimized production, for example, in the coextrusion process known per se.
  • the cabinet furniture according to the invention with the consisting of the profile elements front blind has a sound absorption coefficient according to EN ISO 354 of at least 0.4.
  • the sound absorption coefficient represents the ratio of the equivalent sound absorption surface of a test object to the surface of the test object.
  • the surface of the test object in this case the cabinet furniture according to the invention, is the surface of the floor or the wall which is covered by it.
  • the equivalent sound absorption area of the test object is determined from the difference between the equivalent sound absorption area of the reverberation room (the office room) with and without the test object (cabinet furniture).
  • the equivalent sound absorption area of a room is defined as the hypothetical size of a fully absorbing surface without diffraction effects, which would give the same reverberation time in a room as if it were the only absorbing element in space.
  • the resulting stationary sound pressure level and the decay of the sound pressure level after switching off the sound source by the sound-absorbing properties of the room boundary surfaces, the air in the room and the objects (cabinet furniture) in the room to be influenced.
  • the proportion of sound power absorbed at a surface depends on the angle of incidence of the sound.
  • EN ISO 354 describes a reverberation chamber method for measuring the sound absorption coefficient of acoustic materials used to clad walls and ceilings used or the equivalent sound absorption surface of individual objects, such as cabinet furniture.
  • the determined sound absorption coefficient can be used for comparison purposes and for design calculations in room acoustics and especially in noise abatement.
  • the cabinet furniture according to the invention it is surprisingly possible to reduce the sound in, for example, office space so that an audible reduction in the general noise level for each recognizable or audible.
  • FIG. 1 an inventive cabinet is shown having a furniture body in a known manner with two side walls 2, 3, a bottom 5 and a topsoil 4.
  • the front blind 1 from right to left, so horizontally, movable.
  • a guide groove 20 is introduced, in which the front blind 1 is movable.
  • Another guide groove 20 is incorporated in the topsoil 4, but this is not visible in the illustration.
  • Fig. 2 shows a perspective view of a first embodiment of a front blind 1 of a cabinet furniture according to the invention.
  • the profile element 10 of the front blind 1 has an approximately U-shaped cross-section, which is formed in a certain wall thickness by the profile body 11.
  • the profile element 10 may for example consist of a thermoplastically processable material and be prepared by extrusion in a known manner. However, it is also within the scope of the invention to produce the profile element 10 of a metallic material such as aluminum or a thermosetting processable material.
  • openings 40 are introduced, which are formed angular in this embodiment. However, it is also within the scope of the invention that the openings 40 are round, oval, polygonal or trapezoidal.
  • the sum of the total area of the openings 4 with respect to the surface of the profile body 11 of the profile element 10 in this embodiment is about 17%, which leads to optimized Schallabsorbtions für the cabinet furniture according to the invention.
  • the profile element 10 has at its longitudinal sides via connecting means 6, 7, brought about the several profile elements 10 operatively connected to a corresponding front blind 1.
  • the connecting means 6 is in this embodiment, a cross-sectionally approximately C-shaped opening which extends over the entire length of the profile element 10.
  • the connecting element 7 is in this embodiment, an approximately circular in cross-section formed element 72 which is connected via a band-shaped element 71 with the longitudinal side of the profile body 11 of the profile element 10.
  • the band-shaped element 71 of the connecting means 7 is made in this embodiment of a softer material than the element 72, so that in mutually operatively connected connecting means 6, 7, the profile elements 10 are hinged together in the front blind 1.
  • a front blind 1 is formed.
  • This front blind 1 can be performed in a known manner, for example in lateral guide rails 20 of cabinet furniture and guided or wound over a curved rail or a role in cabinet furniture.
  • the front side 2 of the profile body 11 of the profile element 10 faces the interior of the office space.
  • the entering through the opening 40 in the cabinet furniture sound is further absorbed and reflected by the stored therein objects, but also by the furniture body itself, and From the bottom 3 of the profile body 11 of the profile element 10, a part of the sound is reflected back into the cabinet furniture, while another part of the reduced sound in small amounts is returned via the openings 40 in the office space.
  • the sum of the total area of the openings 40 relative to the surface of the first profile body 11 of the profile element 10 in this embodiment is about 17%, which leads to optimized sound absorption effects of the cabinet furniture according to the invention.
  • Fig. 3 is a perspective view of a second embodiment of a front blind 1 of a cabinet furniture according to the invention shown.
  • the profile elements 10 of the front blind 1 are made in one piece from a material such as a thermoplastically processable plastic or a metallic material such as aluminum.
  • a soundproofing element 5 is arranged, which consists for example of a fiber material.
  • openings 40 are introduced into the profile body 11 of the profile element 10.
  • 10 additional sound insulation elements 5 are arranged on the underside 3 of the profile body 11 of the profile element, which are formed for example as a membrane.
  • the profile element 10 has on its longitudinal sides connecting means 6, 7, which lead by telescoping of several profile elements 1 to a front blind 1.
  • the connecting elements 6, 7 are hook-shaped in this embodiment, so that the front blind 1 from each adjacent profile elements 10, which are hinged together.
  • the soundproofing effect of a cabinet furniture according to the invention is multiplied accordingly.
  • the soundproofing element 5, which is applied to the front side 2 of the profile body 11 of the profile element 10 is, at the same time still generates a designerischen effect of the cabinet furniture according to the invention.
  • the size or the area of the openings 40 of the profile body 11 of the profile element 10 can be reduced accordingly.
  • the size of the surface of the openings 40 in this embodiment about 20% with respect to the surface of the profile body 11 of the profile element 10 is executed.
  • the profile body 11 of the profile element 10 next to the covered by the soundproofing element 5 on the front side 2 of the profile body 11 of the profile element openings 40 further openings, where in turn an additional soundproofing element 5 can be arranged.
  • Fig. 4 shows a perspective view of another embodiment of a front blind 1 of a cabinet furniture according to the invention.
  • the profile elements 10 of the front blind 1 have an approximately U-shaped cross section, which is formed in a certain wall thickness by the profile body 11.
  • openings 40 are introduced, which are formed in this embodiment round.
  • the soundproofing element 5 is arranged, which consists in this embodiment of a nonwoven material.
  • the soundproofing element 5 is arranged in this embodiment over the entire surface of the underside 3 of the profile body 11 and covers the openings 40 over the entire surface.
  • the sum of the total area of the openings 40 relative to the surface of the profile body 11 of the profile element 10 in this embodiment is about 17%, which leads to optimized Schallabsorbtions für the cabinet furniture according to the invention.
  • a reduction of the noise level can be achieved by the use of cabinet furniture according to the invention, such cabinet furniture according to the invention having a sound absorption coefficient of about 0.82.
  • the profile element 10 has at its longitudinal sides via connecting means 6, 7, brought about the several profile elements 10 operatively connected to a corresponding front blind 1.
  • the operation and operation of the invention will be explained in more detail below.
  • a front blind 1 is formed.
  • This front blind 1 can be performed in a known manner, for example in lateral guide rails 20 of cabinet furniture.
  • the front side 2 of the profile body 11 of the profile element 10 faces the interior. The sound from the interior now passes through the opening 40 to the sound-absorbing material of the soundproofing element 5 and can be at least partially absorbed by this.
  • the soundproofing element 5 is arranged so that between the back 3 of the profile body 11 and the soundproofing element 5, an air gap is formed, through which the sound propagates along the soundproofing element 5 and between the openings 40 of Profile element 10 is absorbed by the soundproofing element 5.
  • the soundproofing element 5 is fixed in this embodiment to the guided in the guide groove 20 free ends of the profile element 10. The now entering the cabinet furniture sound is further absorbed and reflected by the stored therein objects, but also by the furniture body itself and thus strongly attenuated coming from the interior of the cabinet furniture coming on the bottom 3 of the profile body 11 of the profile element 10.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Building Environments (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Assembled Shelves (AREA)
  • Drying Of Solid Materials (AREA)
  • Table Devices Or Equipment (AREA)
  • Blinds (AREA)
  • Centrifugal Separators (AREA)

Abstract

The cabinet is assembled of two lateral panels (2,3), a bottom (5) and a top panel (4). The door (1) is made of a multitude of vertically positioned slats and can be slid in rails located at the bottom (5), the top (4) respectively. The slats can be made of extrusion molded plastic or aluminum profiles and are connected along their complementary shaped vertical edges. Each slat is provided with rows of small holes. When the door (1) is closed air can enter the cabinet, is deflected by the stored objects and guided out again.

Description

Die Erfindung betrifft ein Schrankmöbel gemäß Oberbegriff des Anspruchs 1.The invention relates to a cabinet furniture according to the preamble of claim 1.

Aus dem Stand der Technik sind Schrankmöbel mit Profilelementen bekannt, die zum Bilden eines Rollladens mit jeweils benachbarten Profilelementen gelenkig verbindbar sind und die zum Öffnen bzw. zum Verschließen von Schrankmöbeln sind. Diese aus Profilelementen bestehenden in Schrankmöbeln angeordnete Rollladen aus dem bekannten Stand der Technik verursachen beim Öffnen und Verschließen materialbedingt selber Geräusche. Insbesondere bei der Verwendung der Schrankmöbel in beispielsweise Großraumbüros mit einem an sich hohen Geräuschpegel führt deren Einsatz dazu, den Schall weiter zu verteilen, da an deren Oberfläche der Schall zurückreflektiert wird. Die dabei entstehende Geräuschkulisse, insbesondere in einem größeren Büroraum, ist nicht förderlich für das Verständigungs- und Arbeitsklima der Mitarbeiter.Cabinet furniture with profile elements are known from the prior art, which are articulated to form a shutter with each adjacent profile elements and which are for opening or closing of cabinet furniture. These existing in profile elements arranged in cabinet furniture shutters from the prior art cause the opening and closing material due itself noises. In particular, when using the cabinet furniture in, for example, open-plan offices with a per se high noise level their use leads to further distribute the sound, as on the surface of the sound is reflected back. The resulting background noise, especially in a larger office space, is not conducive to the understanding and working climate of the employees.

So ist in der DE 103 43 956 ein Schrankmöbel offenbart, mit einem Möbelkorpus und einer Frontjalousie, die parallel zueinander angeordnete Profilelemente, hier Lamellen genannt, aufweist und in an den Stirnseiten in den Wänden des Möbelkorpus angeordneten Führungsnuten geführt ist. Dieses Schrankmöbel soll so ausgebildet sein, dass die Jalousie vergleichsweise hohe Profilelemente aufweisen kann. Erreicht werden soll dies dadurch, dass die Profilelemente an ihren Stirnseiten mit Verkettungsgliedern verbunden sind, die an ihren zum Zentrum der Frontjalousie weisenden Seiten Verbindungsbereiche mit den Profilelemente und jeweils an den nach außen zu den Wänden weisenden Seiten in die Führungsnuten eingreifende Schwenkzapfen aufweisen, die über Schwenkösen mit dem jeweils benachbarten Verkettungsglied verbunden sind.So is in the DE 103 43 956 discloses a cabinet furniture, with a furniture body and a front blind, the parallel arranged profile elements, here called lamellae, and is guided in arranged on the end faces in the walls of the furniture body guide grooves. This cabinet furniture should be designed so that the blind can have comparatively high profile elements. This is to be achieved by the fact that the profile elements are connected at their end faces with linking members which have on their sides facing the center of the front blinds connecting areas with the profile elements and respectively on the outwardly facing to the walls sides in the guide grooves engaging pivot pin over Pivoting eyelets are connected to the respective adjacent linking member.

Nachteilig bei diesem Schrankmöbel wird gesehen, dass durch die Geometrie und das verwendete Material der Profilelemente der Frontjalousie eine schallverstärkende Wirkung erreicht wird, da der im bspw. Büroraum entstehende Schall großflächig wieder zurückreflektiert wird.A disadvantage of this cabinet furniture is seen that a sound-enhancing effect is achieved by the geometry and the material used of the profile elements of the front blind, since the resulting in example. Office space sound is reflected back over a large area.

Aus der GB 2 302 795 A , welche die Merkmale gemäß Oberbegriff des Anspruchs 1 offenbart, ist ein Schrankmöbel für Computer bekannt, welches zwecks Vermeidung einer Überhitzung des Computers Belüftungsöffnungen aufweist.From the GB 2 302 795 A discloses the features according to the preamble of claim 1, a cabinet furniture for computers is known, which in order to avoid overheating of the computer has ventilation openings.

Die Erfindung hat sich die Aufgabe gestellt, die bekannten Nachteile des Standes der Technik zu verbessern und Schrankmöbel aufzuzeigen, die wirtschaftlich und kostengünstig herstellbar sind und die insbesondere hinsichtlich der schallabsorbierenden Eigenschaften verbessert sind.The object of the invention has been found to improve the known disadvantages of the prior art and to show cabinet furniture, which are economical and inexpensive to produce and which are improved in particular in terms of sound-absorbing properties.

Erfindungsgemäß wird dies durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben. Gegenstand der Erfindung ist ferner ein Verfahren gemäß Anspruch 8.This is achieved by the characterizing features of claim 1 according to the invention. Further advantageous embodiments are described in the subclaims. The invention further provides a method according to claim 8.

Beim erfindungsgemäßen Schrankmöbel weist das Profilelement wenigstens einen flächigen Profilkörper auf, in den wenigstens eine Öffnung eingebracht ist. Diese Lösung ist einfach und hat den Vorteil, dass der Schall durch die Öffnung im Profilkörper des Profilelementes in den Schrankmöbel eindringen und sich dort ausbreiten kann. Der Schall wird zumindest teilweise im Schrankmöbel absorbiert. Der aus dem Schrankmöbel zurückreflektierte Schall wird nun von den Profilelementen der Frontjalousie wenigsten teilweise wieder in den Schrankmöbel zurückreflektiert, so dass nur ein sehr geringer Anteil des Schalls in den Raum zurückreflektiert wird.When cabinet furniture according to the invention, the profile element has at least one planar profile body, in which at least one opening is introduced. This solution is simple and has the advantage that the sound can penetrate through the opening in the profile body of the profile element in the cabinet furniture and spread there. The sound is at least partially absorbed in the cupboard furniture. The sound reflected back from the cabinet furniture is now at least partly reflected back into the cupboard furniture by the profile elements of the front blind, so that only a very small portion of the sound is reflected back into the room.

Weiterhin vorteilhaft hat sich herausgestellt, dass im Querschnitt gesehen die Breite der Öffnung weniger als die Hälfte der Breite der Vorderwand des Profilkörpers des Profilelementes, vorzugsweise weniger als ein Drittel beträgt. Es hat sich bei Untersuchungen herausgestellt, dass bei diesen Vorgaben kostengünstige Schrankmöbel mit Frontjalousien herstellbar sind, mit guter Schallabsorptionswirkung.Furthermore, it has been found to be advantageous that seen in cross-section, the width of the opening is less than half the width of the front wall of the profile body of the profile element, preferably less than a third. It has been found in investigations that inexpensive furniture with front blinds can be produced with these specifications, with good sound absorption effect.

Erfindungsgemäß hat sich herausgestellt, dass eine Größe der Fläche aller Öffnungen des Profilkörpers des Profilelementes von weniger als 45 % bzw. mehr als 3 % der Fläche der Vorderseite des Profilkörpers des Profilelementes zu dimensionsstabilen Profilelementen bzw. Frontjalousien führt, welche je nach Größe der zu erzeugenden Fläche optimierte Schallabsorbtionswirkungen aufweisen.According to the invention, it has been found that a size of the area of all openings of the profile body of the profile element of less than 45% or more than 3% of the surface of the front of the profile body of the profile element leads to dimensionally stable profile elements or front blinds, which depending on the size of the Have surface optimized sound absorption effects.

Erfindungsgemäß sind in Längsrichtung des Profilkörpers des Profilelementes mehrere voneinander beabstandete Öffnungen vorgesehen.Es hat sich dabei auch als vorteilhaft herausgestellt, wenn die Öffnungen regelmäßig voneinander beabstandet sind. Dadurch lassen sich einerseits das Design der durch die Profilelemente gebildeten Frontjalousie entsprechend den Kundenanforderungen gestalten bei gleichzeitig optimierter Schallabsorbtionswirkung. Weiterhin vorteilhaft hat sich erwiesen, dass der Mittelabstand der Öffnungen größer oder gleich der Ausdehnung der Öffnung in Längsrichtung des Profilkörpers des Profilelementes ist. Durch diese fertigungstechnisch einfachen Möglichkeiten und den dadurch bedingten verschiedenen Designs lassen sich optimierte Schallabsorbtionswirkungen für viele Anforderungen realisieren.According to the invention, a plurality of spaced openings are provided in the longitudinal direction of the profile body of the profile element. It has also been found to be advantageous if the openings are regularly spaced from each other. As a result, on the one hand, the design of the front blinds formed by the profile elements can be designed in accordance with customer requirements while at the same time optimizing the sound absorption effect. Furthermore, it has proven advantageous that the center distance of the openings is greater than or equal to the extent of the opening in the longitudinal direction of the profile body of the profile element. These production-technologically simple possibilities and the consequent different designs allow optimized sound absorption effects to be realized for many requirements.

In einer weiteren Ausgestaltung des erfindungsgemäßen Schrankmöbels ist ein Schallschutzelement zumindest im Bereich der Öffnung zur Öffnung hin angeordnet und kann beim Eindringen des Schalls bereits große Bestandteile davon eliminieren. Der durch die Öffnungen des Profilkörpers des Profilelementes eindringende Schall verbreitet sich derart, dass er zumindest mit einem Großteil der Oberfläche des Schallschutzelementes in Berührung kommt und absorbiert wird. Gegenüber herkömmlichen Schrankmöbeln, die Frontjalousien mit Profilelementen ohne derartiges schallabsorbierendes Material aufweisen, lassen sich die Schallabsorbtionswirkungen eines erfindungsgemäßen Schrankmöbels erheblich verbessern. Bei dem erfindungsgemäßen Schrankmöbel ist das Schallschutzelement zumindest im Bereich der Öffnung zur Öffnung hin und von ihr weg bewegbar angeordnet, so dass der eindringende Schall das Schallschutzelement in Schallrichtung bewegt und somit zu einer besseren Absorption des Schalles beiträgt.In a further embodiment of the cabinet furniture according to the invention, a soundproofing element is arranged at least in the region of the opening to the opening and can already eliminate large components thereof when the sound penetrates. The penetrating through the openings of the profile body of the profile element sound propagates such that it comes into contact with at least a majority of the surface of the soundproofing element and is absorbed. Compared to conventional cabinet furniture, the front blinds with profile elements without such sound-absorbing material, the Schallabsorbtionswirkungen a cabinet furniture according to the invention can be significantly improved. In the case of the cupboard furniture according to the invention, the soundproofing element is arranged to be movable at least in the region of the opening towards the opening and away from it, so that the penetrating sound moves the soundproofing element in the sound direction and thus contributes to a better absorption of the sound.

In einer weiteren vorteilhaften Ausführungsform ist das Schallschutzelement an der Vorderseite des Profilkörpers des Profilelementes angeordnet, so dass vorteilhafterweise neben den schallabsorbierenden Eigenschaften auch gestalterische und designerische Möglichkeiten für kundenspezifische Schrankmöbel möglich sind.In a further advantageous embodiment, the soundproofing element is arranged on the front side of the profile body of the profile element, so that in addition to the sound-absorbing properties, design and design possibilities for custom-designed cupboard furniture are advantageously possible.

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In einer weiteren ebenfalls vorteilhaften Ausgestaltung der Erfindung ist das Schallschutzelement an der Unterseite des Profilkörpers des Profilelementes angeordnet, so dass die im Profilkörper des Profilelementes eingebrachten Öffnungen den ankommenden Schall kanalisiert an das Schallschutzelement abgeben und das Design eines Schrankmöbels den Wünschen jedes Kunden anpassbar ist.In a further likewise advantageous embodiment of the invention, the soundproofing element is arranged on the underside of the profile body of the profile element, so that the openings introduced in the profile body of the profile element channeled the incoming sound to the soundproofing element and the design of a cabinet furniture is the wishes of each customer customizable.

In einer weiteren ebenfalls vorteilhaften Ausbildung ist das Schallschutzelement sowohl an der Vorderseite als auch an der Unterseite des Profilkörpers des Profilelementes angeordnet, was zu noch optimierteren Schallschutzeigenschaften des Schrankmöbels führt.In a further likewise advantageous embodiment, the soundproofing element is arranged both on the front side and on the underside of the profile body of the profile element, which leads to even more optimized soundproofing properties of the cabinet furniture.

Die Ausbildung des Schallschutzelementes als im Wesentlichen mattenförmig führt zu vorteilhaften Fertigungskosten derartiger erfindungsgemäßer Schrankmöbel.
In weiteren vorteilhaften Weiterbildungen kann das schallabsorbierende Material ein Fasermaterial sein, mit dem sich auf einfache Weise kostengünstig gute schallabsorbierende Eigenschaften des Schrankmöbels erzielen lässt.The formation of the soundproofing element as a substantially mat-shaped leads to advantageous production costs of such inventive cabinet furniture.
In further advantageous developments, the sound-absorbing material may be a fiber material, with which it is possible to inexpensively achieve good sound-absorbing properties of the cabinet furniture in a simple manner.

Ein weiterer Vorteil des erfindungsgemäßen Schrankmöbels besteht darin, dass das schallabsorbierende Material ein Vliesmaterial ist, welches sich durch sehr gute schallabsorbierende Eigenschaften und auch eine sehr gute Verarbeitbarkeit auszeichnet.Another advantage of the cabinet furniture according to the invention is that the sound-absorbing material is a non-woven material, which is characterized by very good sound-absorbing properties and also a very good processability.

In weiteren vorteilhaften Ausgestaltungsformen kann das Schallschutzelement durch eine Membran, beispielsweise aus Kunststoff, gebildet werden. Mit einer solchen Membran lassen sich materialspezifisch gezielt gewünschte Schallfrequenzen beeinflussen bzw. absorbieren.
Weiterhin vorteilhaft wird gesehen, dass sich das Schallschutzelement über die gesamte Länge des Profilelementes erstreckt, was zu kostengünstig herstellbaren Schrankmöbeln mit optimierten Schallabsorbtionswirkungen führt.In further advantageous embodiments, the soundproofing element can be formed by a membrane, for example made of plastic. With such a membrane, material-specifically targeted desired sound frequencies can be influenced or absorbed.
Furthermore, it is advantageously seen that the soundproofing element extends over the entire length of the profile element, which leads to inexpensive cabinet furniture with optimized Schallabsorbtionswirkungen.

Vorteilhafterweise ist der Profilkörper und oder das Profilelement so ausgebildet, dass es Befestigungseinrichtungen zur Befestigung des Schallschutzelementes aufweist, so dass eine kostengünstige Herstellung derartiger Profilelemente mit optimierten Schallabsorbtionswirkungen möglich ist, wobei sich ein ungewolltes Verschieben bzw. Verrutschen des Schallschutzelementes verhindern lässt.Advantageously, the profile body and or the profile element is formed so that it has fastening devices for fastening the soundproofing element, so that a cost-effective production of such profile elements with optimized Schallabsorbtionswirkungen is possible, which can prevent accidental displacement or slippage of the soundproofing element.

In einer weiteren vorteilhaften Ausgestaltung ist das Schallschutzelement vollflächig mit dem Profilkörper des Profilelementes verbunden, was eine optimierte Herstellung beispielsweise im an sich bekannten Coextrusionsverfahren kostengünstig ermöglicht.In a further advantageous embodiment, the soundproofing element is connected over its entire surface to the profile body of the profile element, which enables cost-effective optimized production, for example, in the coextrusion process known per se.

Das erfindungsgemäße Schrankmöbel mit der aus den Profilelementen bestehenden Frontjalousie weist einen Schallabsorptionsgrad gemäß EN ISO 354 von wenigstens 0,4 auf. Der Schallabsorptionsgrad stellt dabei das Verhältnis von äquivalenter Schallabsorptionsfläche eines Prüfobjektes zur Fläche des Prüfobjektes dar. Die Fläche des Prüfobjektes, in diesem Fall des erfindungsgemäßen Schrankmöbels, ist die Fläche des Bodens oder der Wand, die von ihm überdeckt wird.
Die äquivalente Schallabsorptionsfläche des Prüfobjektes ermittelt sich aus der Differenz zwischen der äquivalenten Schallabsorptionsfläche des Hallraumes (des Büroraumes) mit und ohne das Prüfobjekt (Schrankmöbel). Dabei wird die äquivalente Schallabsorptionsfläche eines Raumes als die hypothetische Größe einer vollständig absorbierenden Oberfläche ohne Beugungseffekte, welche die gleiche Nachhallzeit in einem Raum ergeben würde, als wenn sie das einzig absorbierende Element im Raum wäre, definiert.
Im Allgemeinen kann festgestellt werden, dass, wenn eine Schallquelle in einem geschlossenen Raum betrieben wird, der resultierende stationäre Schalldruckpegel sowie das Abklingen des Schalldruckpegels nach Abschalten der Schallquelle durch die schallabsorbierenden Eigenschaften der Raumbegrenzungsflächen, die Luft im Raum und die Gegenstände (Schrankmöbel) im Raum beeinflusst werden. Im Allgemeinen hängt der Anteil der Schallleistung, der an einer Oberfläche absorbiert wird, vom Einfallswinkel des Schalls ab. Um die Nachhallzeit eines beispielsweise Büros, einer Werkstatt und dergleichen zu derjenigen Lärmminderung in Beziehung zu setzen, die durch eine schallabsorbierende Anordnung, wie beispielsweise ein Schrankmöbel, erzielt wird, ist die Kenntnis der schallabsorbierenden Eigenschaften der Oberfläche, üblicherweise in Form eines geeigneten Mittelwertes über alle Einfallswinkel erforderlich.
Da die Verteilung von Schallwellen in üblichen Räumen einen großen und unvorhersagbaren Winkelbereich umfasst, wird für die Zwecke der Normung grundsätzlich eine gleichmäßige Verteilung angenommen.
Wenn außerdem die Schallenergiedichte innerhalb eines Raumes ortsunabhängig ist, wird eine solche Schallverteilung ein diffuses Schallfeld genannt und man spricht bei den Schallanteilen, die auf eine Raumoberfläche treffen, von stochastischem Schalleinfalll.
In der EN ISO 354 wird ein Hallraum-Verfahren beschrieben zur Messung des Schallabsorptionsgrades von akustischen Materialien, die zur Bekleidung von Wänden und Decken benutzt werden oder der äquivalenten Schallabsorptionsfläche von Einzelobjekten, wie beispielsweise Schrankmöbel. Der ermittelte Schallabsorptionsgrad kann zu Vergleichszwecken und für Entwurfsberechnungen in der Raumakustik und vor allem in der Lärmbekämpfung verwendet werden. Durch die erfindungsgemäßen Schrankmöbel ist es überraschend möglich, den Schall in beispielsweise Büroräumen so zu reduzieren, dass eine hörbare Senkung des allgemeinen Geräuschpegels für jeden erkennbar bzw. hörbar ist.The cabinet furniture according to the invention with the consisting of the profile elements front blind has a sound absorption coefficient according to EN ISO 354 of at least 0.4. The sound absorption coefficient represents the ratio of the equivalent sound absorption surface of a test object to the surface of the test object. The surface of the test object, in this case the cabinet furniture according to the invention, is the surface of the floor or the wall which is covered by it.
The equivalent sound absorption area of the test object is determined from the difference between the equivalent sound absorption area of the reverberation room (the office room) with and without the test object (cabinet furniture). Here, the equivalent sound absorption area of a room is defined as the hypothetical size of a fully absorbing surface without diffraction effects, which would give the same reverberation time in a room as if it were the only absorbing element in space.
In general, it can be stated that when a sound source is operated in a closed room, the resulting stationary sound pressure level and the decay of the sound pressure level after switching off the sound source by the sound-absorbing properties of the room boundary surfaces, the air in the room and the objects (cabinet furniture) in the room to be influenced. In general, the proportion of sound power absorbed at a surface depends on the angle of incidence of the sound. In order to relate the reverberation time of, for example, an office, a workshop, and the like to the noise reduction achieved by a sound absorbing arrangement, such as cabinet furniture, the knowledge of the sound absorbing properties of the surface, usually in the form of a suitable average over all Angle of incidence required.
Since the distribution of sound waves in conventional rooms includes a large and unpredictable angular range, a uniform distribution is generally assumed for the purposes of standardization.
Moreover, if the sound energy density within a room is location-independent, such a sound distribution is called a diffuse sound field and one speaks of stochastic sound incidence in the sound components that hit a room surface.
EN ISO 354 describes a reverberation chamber method for measuring the sound absorption coefficient of acoustic materials used to clad walls and ceilings used or the equivalent sound absorption surface of individual objects, such as cabinet furniture. The determined sound absorption coefficient can be used for comparison purposes and for design calculations in room acoustics and especially in noise abatement. By the cabinet furniture according to the invention, it is surprisingly possible to reduce the sound in, for example, office space so that an audible reduction in the general noise level for each recognizable or audible.

Im Folgenden soll die Wirkungs- bzw. Funktionsweise der erfindungsgemäßen Schrankmöbel anhand von Ausführungsbeispielen, welche die Erfindung nicht einschränken, näher erläutert werden.In the following, the effect and operation of the cabinet furniture according to the invention will be explained in more detail by means of embodiments which do not limit the invention.

Es zeigen:

Fig. 1
Perspektivische Darstellung eines erfindungsgemäßen Schrankmöbels
Fig. 2
Perspektivische Darstellung einer ersten Ausführungsform einer Frontjalousie eines erfindungsgemäßen Schrankmöbels
Fig. 3
Perspektivische Darstellung einer zweiten Ausführungsform einer Frontjalousie eines erfindungsgemäßen Schrankmöbels
Fig. 4
Perspektivische Darstellung einer weiteren Ausführungsform einer Frontjalousie eines erfindungsgemäßen Schrankmöbels
Show it:
Fig. 1
Perspective view of a cabinet furniture according to the invention
Fig. 2
Perspective view of a first embodiment of a front blinds of a cabinet furniture according to the invention
Fig. 3
Perspective view of a second embodiment of a front blinds of a cabinet furniture according to the invention
Fig. 4
Perspective view of another embodiment of a front blinds of a cabinet furniture according to the invention

In Fig. 1 ist ein erfindungsgemäßes Schrankmöbel dargestellt, das in bekannter Weise einen Möbelkorpus aufweist mit zwei Seitenwänden 2, 3, einem Boden 5 sowie einem Oberboden 4. In diesem Ausführungsbeispiel ist die Frontjalousie 1 von rechts nach links, also horizontal, bewegbar. Im Boden 5 des erfindungsgemäßen Schrankmöbels ist eine Führungsnut 20 eingebracht, in der die Frontjalousie 1 bewegbar ist.
Eine weitere Führungsnut 20 ist im Oberboden 4 eingebracht, wobei diese jedoch in der Darstellung nicht sichtbar ist.In Fig. 1 an inventive cabinet is shown having a furniture body in a known manner with two side walls 2, 3, a bottom 5 and a topsoil 4. In this embodiment, the front blind 1 from right to left, so horizontally, movable. In the bottom 5 of the cabinet furniture according to the invention a guide groove 20 is introduced, in which the front blind 1 is movable.
Another guide groove 20 is incorporated in the topsoil 4, but this is not visible in the illustration.

Fig. 2 zeigt eine perspektivische Darstellung einer ersten Ausführungsform einer Frontjalousie 1 eines erfindungsgemäßen Schrankmöbels. Das Profilelement 10 der Frontjalousie 1 weist einen etwa U-förmigen Querschnitt auf, der in einer bestimmten Wandstärke durch den Profilkörper 11 gebildet ist.
Das Profilelement 10 kann beispielsweise aus einem thermoplastisch verarbeitbaren Material bestehen und im Extrusionsverfahren in bekannter Weise hergestellt sein. Es liegt jedoch auch im Rahmen der Erfindung, das Profilelement 10 aus einem metallischen Werkstoff wie beispielsweise Aluminium oder einem duroplastisch verarbeitbaren Material herzustellen.
In dem Profilkörper 11 des Profilelementes 1 sind Öffnungen 40 eingebracht, die in diesem Ausführungsbeispiel eckig ausgebildet sind. Es liegt jedoch auch im Rahmen der Erfindung, dass die Öffnungen 40 rund, oval, mehreckig oder trapezförmig ausgebildet sind. Die Summe der Gesamtfläche der Öffnungen 4 gegenüber der Fläche des Profilkörpers 11 des Profilelementes 10 beträgt in diesem Ausführungsbeispiel etwa 17 %, was zu optimierten Schallabsorbtionswirkungen des erfindungsgemäßen Schrankmöbels führt. Fig. 2 shows a perspective view of a first embodiment of a front blind 1 of a cabinet furniture according to the invention. The profile element 10 of the front blind 1 has an approximately U-shaped cross-section, which is formed in a certain wall thickness by the profile body 11.
The profile element 10 may for example consist of a thermoplastically processable material and be prepared by extrusion in a known manner. However, it is also within the scope of the invention to produce the profile element 10 of a metallic material such as aluminum or a thermosetting processable material.
In the profile body 11 of the profile element 1 openings 40 are introduced, which are formed angular in this embodiment. However, it is also within the scope of the invention that the openings 40 are round, oval, polygonal or trapezoidal. The sum of the total area of the openings 4 with respect to the surface of the profile body 11 of the profile element 10 in this embodiment is about 17%, which leads to optimized Schallabsorbtionswirkungen the cabinet furniture according to the invention.

Weiterhin verfügt das Profilelement 10 an seinen Längsseiten über Verbindungsmittel 6, 7, über die mehrere Profilelemente 10 in Wirkverbindung gebracht eine entsprechende Frontjalousie 1 ergeben. Das Verbindungsmittel 6 ist in diesem Ausführungsbeispiel eine im Querschnitt etwa C-förmige Öffnung, die sich über die gesamte Länge des Profilelementes 10 erstreckt. Das Verbindungselement 7 ist in diesem Ausführungsbeispiel ein im Querschnitt etwa kreisförmig ausgebildetes Element 72, welches über ein bandförmiges Element 71 mit der Längsseite des Profilkörpers 11 des Profilelementes 10 verbunden ist. Das bandförmige Element 71 des Verbindungsmittels 7 ist in diesem Ausführungsbeispiel aus einem weicheren Werkstoff hergestellt als das Element 72, so dass bei miteinander in Wirkverbindung stehenden Verbindungsmitteln 6, 7 die Profilelemente 10 in der Frontjalousie 1 gelenkig miteinander verbunden sind.
Nachfolgend soll die Wirkungs- und Funktionsweise der Erfindung näher erläutert werden. Wie bereits anfangs dargestellt, wird durch Ineinanderschieben der Verbindungsmittel 6, 7 jeweils benachbarter Profilelemente 10 eine Frontjalousie 1 gebildet. Diese Frontjalousie 1 kann in bekannter Weise beispielsweise in seitlichen Führungsschienen 20 von Schrankmöbeln geführt werden und über eine Kurvenschiene oder über eine Rolle im Schrankmöbel geführt bzw. aufgewickelt werden.
Beim Verschließen der Öffnung des Schrankmöbels ist die Vorderseite 2 des Profilkörpers 11 des Profilelementes 10 dem Innenraum des Büroraumes zugewandt. Der über die Öffnung 40 nun in den Schrankmöbel eintretende Schall wird durch die darin gelagerten Gegenstände, aber auch durch den Möbelkorpus selber, weiter absorbiert und reflektiert und trifft somit stark abgeschwächt aus dem Inneren des Schrankmöbels kommend auf die Unterseite 3 des Profilkörpers 11 des Profilelementes 10. Von der Unterseite 3 des Profilkörpers 11 des Profilelementes 10 wird ein Teil des Schalls wieder in den Schrankmöbel zurückreflektiert, während ein weiterer Teil des reduzierten Schalls in geringfügigen Mengen über die Öffnungen 40 in den Büroraum zurückgeleitet wird.
Somit kann durch den Einsatz von Schrankmöbeln in Büroräumen eine Verbesserung des Arbeitsklimas durch eine Reduzierung des Geräuschpegel des Raumes an sich erreicht werden.
Die Summe der Gesamtfläche der Öffnungen 40 gegenüber der Fläche des ersten Profilkörpers 11 des Profilelementes 10 beträgt in diesem Ausführungsbeispiel etwa 17 %, was zu optimierten Schallabsorptionswirkungen des erfindungsgemäßen Schrankmöbels führt.Furthermore, the profile element 10 has at its longitudinal sides via connecting means 6, 7, brought about the several profile elements 10 operatively connected to a corresponding front blind 1. The connecting means 6 is in this embodiment, a cross-sectionally approximately C-shaped opening which extends over the entire length of the profile element 10. The connecting element 7 is in this embodiment, an approximately circular in cross-section formed element 72 which is connected via a band-shaped element 71 with the longitudinal side of the profile body 11 of the profile element 10. The band-shaped element 71 of the connecting means 7 is made in this embodiment of a softer material than the element 72, so that in mutually operatively connected connecting means 6, 7, the profile elements 10 are hinged together in the front blind 1.
The operation and operation of the invention will be explained in more detail below. As already shown initially, by telescoping the connecting means 6, 7 respectively adjacent profile elements 10, a front blind 1 is formed. This front blind 1 can be performed in a known manner, for example in lateral guide rails 20 of cabinet furniture and guided or wound over a curved rail or a role in cabinet furniture.
When closing the opening of the cabinet furniture, the front side 2 of the profile body 11 of the profile element 10 faces the interior of the office space. The entering through the opening 40 in the cabinet furniture sound is further absorbed and reflected by the stored therein objects, but also by the furniture body itself, and From the bottom 3 of the profile body 11 of the profile element 10, a part of the sound is reflected back into the cabinet furniture, while another part of the reduced sound in small amounts is returned via the openings 40 in the office space.
Thus, by the use of cabinet furniture in offices, an improvement in the working environment can be achieved by reducing the noise level of the room itself.
The sum of the total area of the openings 40 relative to the surface of the first profile body 11 of the profile element 10 in this embodiment is about 17%, which leads to optimized sound absorption effects of the cabinet furniture according to the invention.

In Fig. 3 ist eine perspektivische Darstellung einer zweiten Ausführungsform einer Frontjalousie 1 eines erfindungsgemäßen Schrankmöbels dargestellt. Die Profilelemente 10 der Frontjalousie 1 sind einstückig aus einem Material wie beispielsweise einem thermoplastisch verarbeitbaren Kunststoff oder aber einem metallischen Werkstoff, wie beispielsweise Aluminium, hergestellt.
An der Vorderseite 2 des Profilkörpers 11 des Profilelementes 10 ist ein Schallschutzelement 5 angeordnet, welches aus beispielsweise einem Fasermaterial besteht. Unterhalb dieses Schallschutzelementes 5 sind Öffnungen 40 in den Profilkörper 11 des Profilelementes 10 eingebracht. In diesem Ausführungsbeispiel sind an der Unterseite 3 des Profilkörpers 11 des Profilelementes 10 zusätzliche Schallschutzelemente 5 angeordnet, welche beispielsweise als Membran ausgebildet sind.In Fig. 3 is a perspective view of a second embodiment of a front blind 1 of a cabinet furniture according to the invention shown. The profile elements 10 of the front blind 1 are made in one piece from a material such as a thermoplastically processable plastic or a metallic material such as aluminum.
At the front side 2 of the profile body 11 of the profile element 10, a soundproofing element 5 is arranged, which consists for example of a fiber material. Below this soundproofing element 5 openings 40 are introduced into the profile body 11 of the profile element 10. In this embodiment, 10 additional sound insulation elements 5 are arranged on the underside 3 of the profile body 11 of the profile element, which are formed for example as a membrane.

Das Profilelement 10 weist an seinen Längsseiten Verbindungsmittel 6, 7 auf, die durch Ineinanderschieben von mehreren Profilelementen 1 zu einer Frontjalousie 1 führen. Die Verbindungselemente 6, 7 sind in diesem Ausführungsbeispiel hakenförmig ausgebildet, so dass die Frontjalousie1 aus jeweils benachbarten Profilelementen 10, die gelenkig miteinander verbunden sind, besteht.The profile element 10 has on its longitudinal sides connecting means 6, 7, which lead by telescoping of several profile elements 1 to a front blind 1. The connecting elements 6, 7 are hook-shaped in this embodiment, so that the front blind 1 from each adjacent profile elements 10, which are hinged together.

Durch das auf der Vorderseite 2 des Profilkörpers 11 des Profilelementes 10 angebrachte Schallschutzelement 5 und das zusätzlich an der Unterseite 3 des Profilkörpers 11 des Profilelementes 10 angebrachte Schallschutzelement 5 wird die Schallschutzwirkung eines erfindungsgemäßen Schrankmöbels entsprechend vervielfacht. Das Schallschutzelement 5, welches auf der Vorderseite 2 des Profilkörpers 11 des Profilelementes 10 aufgebracht ist, erzeugt gleichzeitig noch einen designerischen Effekt der erfindungsgemäßen Schrankmöbel. In diesem Ausführungsbeispiel kann durch Verwendung von zwei einander gegenüberliegend angeordneten Schallschutzelementen 5 die Größe bzw. die Fläche der Öffnungen 40 des Profilkörpers 11 des Profilelementes 10 entsprechend reduziert werden. Für ausreichende Schallabsorptionswirkungen sind in diesem Ausführungsbeispiel die Größe der Fläche der Öffnungen 40 etwa 20% gegenüber der Fläche des Profilkörpers 11 des Profilelementes 10 ausgeführt. Es liegt jedoch auch im Rahmen der Erfindung, dass der Profilkörper 11 des Profilelementes 10 neben den durch das Schallschutzelement 5 auf der Vorderseite 2 des Profilkörpers 11 des Profilelementes abgedeckten Öffnungen 40 weitere Öffnungen aufweist, an denen wiederum ein zusätzliches Schallschutzelement 5 anordenbar ist.
Somit kann durch den Einsatz von Schrankmöbeln in beispielsweise Büroräumen eine Verbesserung des Arbeitsklimas durch die Reduzierung des Geräuschpegels des Raumes an sich erreicht werden. Ein derart erfindungsgemäßes Schrankmöbel weist einen Schallabsorptionsgrad von etwa 0,7 auf.By mounted on the front side 2 of the profile body 11 of the profile element 10 soundproofing element 5 and additionally attached to the underside 3 of the profile body 11 of the profile element 10 soundproofing element 5, the soundproofing effect of a cabinet furniture according to the invention is multiplied accordingly. The soundproofing element 5, which is applied to the front side 2 of the profile body 11 of the profile element 10 is, at the same time still generates a designerischen effect of the cabinet furniture according to the invention. In this embodiment, by using two mutually oppositely arranged soundproofing elements 5, the size or the area of the openings 40 of the profile body 11 of the profile element 10 can be reduced accordingly. For sufficient sound absorption effects, the size of the surface of the openings 40 in this embodiment, about 20% with respect to the surface of the profile body 11 of the profile element 10 is executed. However, it is also within the scope of the invention that the profile body 11 of the profile element 10 next to the covered by the soundproofing element 5 on the front side 2 of the profile body 11 of the profile element openings 40 further openings, where in turn an additional soundproofing element 5 can be arranged.
Thus, by using cabinet furniture in, for example, offices, an improvement in the working environment can be achieved by reducing the noise level of the room itself. Such cabinet furniture according to the invention has a sound absorption coefficient of about 0.7.

Fig. 4 zeigt eine perspektivische Darstellung einer weiteren Ausführungsform einer Frontjalousie 1 eines erfindungsgemäßen Schrankmöbels. Die Profilelemente 10 der Frontjalousie 1 weisen einen etwa U-förmigen Querschnitt auf, der in einer bestimmten Wandstärke durch den Profilkörper 11 gebildet ist.
In dem Profilkörper 11 des Profilelementes 1 sind Öffnungen 40 eingebracht, die in diesem Ausführungsbeispiel rund ausgebildet sind. An der Unterseite 3 des Profilkörpers 11 des Profilelementes 10 ist das Schallschutzelement 5 angeordnet, welches in diesem Ausführungsbeispiel aus einem Vliesmaterial besteht. Das Schallschutzelement 5 ist in diesem Ausführungsbeispiel vollflächig an der Unterseite 3 des Profilkörpers 11 angeordnet und bedeckt die Öffnungen 40 vollflächig. Die Summe der Gesamtfläche der Öffnungen 40 gegenüber der Fläche des Profilkörpers 11 des Profilelementes 10 beträgt in diesem Ausführungsbeispiel etwa 17 %, was zu optimierten Schallabsorbtionswirkungen des erfindungsgemäßen Schrankmöbels führt.
Somit kann durch den Einsatz derart erfindungsgemäßer Schrankmöbel eine Reduzierung des Geräuschpegels erreicht werden, wobei derart erfindungsgemäße Schrankmöbel einen Schallabsorptionsgrad von etwa 0,82 aufweisen. Fig. 4 shows a perspective view of another embodiment of a front blind 1 of a cabinet furniture according to the invention. The profile elements 10 of the front blind 1 have an approximately U-shaped cross section, which is formed in a certain wall thickness by the profile body 11.
In the profile body 11 of the profile element 1 openings 40 are introduced, which are formed in this embodiment round. At the bottom 3 of the profile body 11 of the profile element 10, the soundproofing element 5 is arranged, which consists in this embodiment of a nonwoven material. The soundproofing element 5 is arranged in this embodiment over the entire surface of the underside 3 of the profile body 11 and covers the openings 40 over the entire surface. The sum of the total area of the openings 40 relative to the surface of the profile body 11 of the profile element 10 in this embodiment is about 17%, which leads to optimized Schallabsorbtionswirkungen the cabinet furniture according to the invention.
Thus, a reduction of the noise level can be achieved by the use of cabinet furniture according to the invention, such cabinet furniture according to the invention having a sound absorption coefficient of about 0.82.

Weiterhin verfügt das Profilelement 10 an seinen Längsseiten über Verbindungsmittel 6, 7, über die mehrere Profilelemente 10 in Wirkverbindung gebracht eine entsprechende Frontjalousie 1 ergeben.
Nachfolgend soll die Wirkungs- und Funktionsweise der Erfindung näher erläutert werden. Wie bereits beschrieben, wird durch Ineinanderschieben der Verbindungsmittel 6, 7 jeweils benachbarter Profilelemente 10 eine Frontjalousie 1 gebildet. Diese Frontjalousie 1 kann in bekannter Weise beispielsweise in seitlichen Führungsschienen 20 von Schrankmöbeln geführt werden. Beim Verschließen der Öffnung des Schrankmöbels ist die Vorderseite 2 des Profilkörpers 11 des Profilelementes 10 dem Innenraum zugewandt. Der Schall aus dem Innenraum gelangt nun über die Öffnung 40 zum schallabsorbierenden Material des Schallschutzelementes 5 und kann zumindest teilweise durch dieses absorbiert werden. Es liegt jedoch auch im Rahmen der Erfindung, dass das Schallschutzelement 5 so angeordnet ist, dass zwischen der Rückseite 3 des Profilkörpers 11 und dem Schallschutzelement 5 ein Luftspalt entsteht, über den sich der Schall am Schallschutzelement 5 entlang ausbreitet und auch zwischen den Öffnungen 40 des Profilelementes 10 durch das Schallschutzelement 5 absorbiert wird. Das Schallschutzelement 5 ist in diesem Ausführungsbeispiel an den in der Führungsnut 20 geführten freien Enden des Profilelementes 10 fixiert. Der nun in den Schrankmöbel eintretende Schall wird durch die darin gelagerten Gegenstände, aber auch durch den Möbelkorpus selber, weiter absorbiert und reflektiert und trifft somit stark abgeschwächt aus dem Inneren des Schrankmöbels kommend auf die Unterseite 3 des Profilkörpers 11 des Profilelementes 10. Von der Unterseite 3 des Profilkörpers 11 des Profilelementes 10 wird ein Teil des Schalls wieder in den Schrankmöbel zurückreflektiert, während ein weiterer Teil des reduzierten Schalls durch das Schallschutzelement 5 nochmals absorbiert und in geringfügigen Mengen über die Öffnungen 4 in den Büroraum zurückgeleitet wird.
Somit kann durch den Einsatz erfindungsgemäßer Schrankmöbel in Büroräumen eine Verbesserung des Arbeitsklimas durch eine Reduzierung des Geräuschpegel erreicht werden.Furthermore, the profile element 10 has at its longitudinal sides via connecting means 6, 7, brought about the several profile elements 10 operatively connected to a corresponding front blind 1.
The operation and operation of the invention will be explained in more detail below. As already described, by telescoping the connecting means 6, 7 respectively adjacent profile elements 10, a front blind 1 is formed. This front blind 1 can be performed in a known manner, for example in lateral guide rails 20 of cabinet furniture. When closing the opening of the cabinet furniture, the front side 2 of the profile body 11 of the profile element 10 faces the interior. The sound from the interior now passes through the opening 40 to the sound-absorbing material of the soundproofing element 5 and can be at least partially absorbed by this. However, it is also within the scope of the invention that the soundproofing element 5 is arranged so that between the back 3 of the profile body 11 and the soundproofing element 5, an air gap is formed, through which the sound propagates along the soundproofing element 5 and between the openings 40 of Profile element 10 is absorbed by the soundproofing element 5. The soundproofing element 5 is fixed in this embodiment to the guided in the guide groove 20 free ends of the profile element 10. The now entering the cabinet furniture sound is further absorbed and reflected by the stored therein objects, but also by the furniture body itself and thus strongly attenuated coming from the interior of the cabinet furniture coming on the bottom 3 of the profile body 11 of the profile element 10. From the bottom 3 of the profile body 11 of the profile element 10, a part of the sound is reflected back into the cabinet furniture, while another part of the reduced sound is absorbed by the soundproofing element 5 again and returned in small quantities through the openings 4 in the office space.
Thus, an improvement of the working environment can be achieved by reducing the noise level by using inventive furniture in office furniture.

Claims (8)

  1. Cabinet having
    - a basic furniture structure and
    - at least one front shutter (1), which has profile elements (10), which are arranged parallel to one another and can be connected to one another, and is guided in guide grooves (20) arranged on the basic furniture structure, wherein the profile elements (10) have a planar profile body (11) into which are introduced a plurality of openings (40) which are spaced apart from one another in the longitudinal profile direction, characterized in that the surface area of all the openings (40) is less than 45% and more than 3%, of the surface area of the front side (2) of the profile body (11).
  2. Cabinet according to Claim 1, characterized in that, as seen in cross section, the width of the openings (40) is less than half, preferably less than a third, of the width of the front side (2) of the profile body (11).
  3. Cabinet according to one of the preceding claims, characterized in that the openings (40) are spaced apart from one another in regular fashion.
  4. Cabinet according to one of the preceding claims, characterized in that the spacing between the openings (40) is greater than, or equal to, the extent of the openings (40) in the longitudinal direction of the profile body (11).
  5. Cabinet according to one of the preceding claims, characterized in that the spacing between the openings (40) in the longitudinal direction of the profile body (11) is greater than, or equal to, double the extent of the openings (40) as seen in the cross section of the profile body (11).
  6. Cabinet according to one of the preceding claims, characterized in that, as seen in cross section, the profile element (10) has an essentially C-shaped, U shaped, Z-shaped or S-shaped configuration.
  7. Cabinet according to one of the preceding claims, characterized in that the cabinet has a sound absorption coefficient in accordance with EN DIN 354 of at least 0.4.
  8. Method for absorbing sound in offices,
    - wherein, for sound-absorption purposes, use is made of a
    cabinet having a basic furniture structure and at least one front shutter (1), which has profile elements (10), which are arranged parallel to one another and can be connected to one another, and is guided in guide grooves (20) arranged on the basic furniture structure, wherein the profile element (10) has a planar profile body (11) into which are introduced a plurality of openings (40) which are spaced apart from one another in the longitudinal profile direction, wherein the surface area of all the openings (40) is less than 45%, and more than 3%, of the surface area of the front side of the profile body (11);
    - wherein the sound penetrates into the cabinet through the openings (40) in the profile bodies (11), propagates in the cabinet and is absorbed there at least in part, and
    - wherein the sound which is reflected back from the cabinet is reflected back into the cabinet again, at least in part, by the profile elements (10), and therefore only a very small fraction of the sound is reflected back into the office.
EP11002433A 2005-09-28 2006-08-18 Method of noise reduction in offices by accoustic absorption in the cupboard Revoked EP2365182B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11002433T PL2365182T3 (en) 2005-09-28 2006-08-18 Method of noise reduction in offices by accoustic absorption in the cupboard

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005015289U DE202005015289U1 (en) 2005-09-28 2005-09-28 Filing cabinet with vertically slatted door, comprises slats made of plastic or aluminum profiles with arrangement of holes
EP06776947A EP1929114B1 (en) 2005-09-28 2006-08-18 Cabinet-type piece of furniture

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP06776947.1 Division 2006-08-18

Publications (2)

Publication Number Publication Date
EP2365182A1 EP2365182A1 (en) 2011-09-14
EP2365182B1 true EP2365182B1 (en) 2012-11-28

Family

ID=37075739

Family Applications (3)

Application Number Title Priority Date Filing Date
EP06776947A Active EP1929114B1 (en) 2005-09-28 2006-08-18 Cabinet-type piece of furniture
EP11002270A Active EP2362059B1 (en) 2005-09-28 2006-08-18 Cupboard
EP11002433A Revoked EP2365182B1 (en) 2005-09-28 2006-08-18 Method of noise reduction in offices by accoustic absorption in the cupboard

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP06776947A Active EP1929114B1 (en) 2005-09-28 2006-08-18 Cabinet-type piece of furniture
EP11002270A Active EP2362059B1 (en) 2005-09-28 2006-08-18 Cupboard

Country Status (10)

Country Link
EP (3) EP1929114B1 (en)
CN (1) CN101305154B (en)
AT (2) ATE503908T1 (en)
DE (2) DE202005015289U1 (en)
EA (1) EA012781B1 (en)
ES (3) ES2399991T3 (en)
PL (3) PL2362059T3 (en)
PT (2) PT2362059E (en)
WO (1) WO2007036266A1 (en)
ZA (1) ZA200803256B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009014787U1 (en) 2009-11-02 2011-03-17 Rehau Ag + Co. Profile element for shutters
DE102010026272A1 (en) * 2010-07-06 2012-01-12 Rehau Ag + Co. Plastic profile, in particular plastic extrusion profile and method for producing a plastic profile
CN103397838A (en) * 2013-08-21 2013-11-20 苏州安帝尔金属制品有限公司 Mute sliding door cabinet
US10774584B2 (en) 2017-04-13 2020-09-15 Hunter Douglas Inc. Battened roller covering
FR3113074B1 (en) * 2020-07-30 2022-10-28 Plastil France ACOUSTIC BLADE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1239943A (en) * 1968-10-29 1971-07-21 Colorastic Ltd Improvements in roller shutters
US4884615A (en) * 1988-09-27 1989-12-05 Hsu Henry C Sound absorbent slats for window blinds
GB2302795A (en) * 1995-07-06 1997-02-05 Stuart John Middlehurst Ventilated security cabinet/desk
FR2823652B1 (en) * 2001-04-18 2003-06-13 Joseph Legeais PROFILED BLADE FOR CURTAIN CLOSURE PROVIDED WITH NOISE LIMITING MEANS
DE10343956A1 (en) * 2003-09-19 2005-04-28 Ludewig Gmbh Box furniture, esp. Kitchen furniture with front jalouise

Also Published As

Publication number Publication date
EP2365182A1 (en) 2011-09-14
ES2384501T3 (en) 2012-07-05
EA012781B1 (en) 2009-12-30
PL2365182T3 (en) 2013-04-30
PL1929114T3 (en) 2011-08-31
PL2362059T3 (en) 2012-08-31
PT2362059E (en) 2012-06-01
ATE550509T1 (en) 2012-04-15
ATE503908T1 (en) 2011-04-15
CN101305154B (en) 2013-03-27
DE202005015289U1 (en) 2006-12-14
ES2399991T3 (en) 2013-04-04
PT2365182E (en) 2013-02-26
DE502006009223D1 (en) 2011-05-12
ES2364077T3 (en) 2011-08-24
EA200800940A1 (en) 2008-10-30
WO2007036266A1 (en) 2007-04-05
CN101305154A (en) 2008-11-12
EP1929114A1 (en) 2008-06-11
ZA200803256B (en) 2009-02-25
EP2362059B1 (en) 2012-03-21
EP2362059A1 (en) 2011-08-31
EP1929114B1 (en) 2011-03-30

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