WO2020243760A1 - Sound absorber element comprising a tensioning frame surrounding an insulating material - Google Patents

Sound absorber element comprising a tensioning frame surrounding an insulating material Download PDF

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Publication number
WO2020243760A1
WO2020243760A1 PCT/AT2020/060210 AT2020060210W WO2020243760A1 WO 2020243760 A1 WO2020243760 A1 WO 2020243760A1 AT 2020060210 W AT2020060210 W AT 2020060210W WO 2020243760 A1 WO2020243760 A1 WO 2020243760A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
cover
frame
tensioning
sound absorber
Prior art date
Application number
PCT/AT2020/060210
Other languages
German (de)
French (fr)
Inventor
Herbert AUBERGER
Original Assignee
Auberger Herbert
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 Auberger Herbert filed Critical Auberger Herbert
Publication of WO2020243760A1 publication Critical patent/WO2020243760A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8209—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only sound absorbing devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8227—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only screens ; Arrangements of sound-absorbing elements, e.g. baffles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • E04B2001/8281—Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2002/7479—Details of connection of flexible sheets to frame or posts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B2009/0492—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like with fabrics tensioned on frames
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/001—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by provisions for heat or sound insulation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
    • E04B9/24—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto
    • E04B9/248—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto by means of permanent magnetic force held against the underside of the supporting construction
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/30—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall
    • E04B9/303—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall for flexible tensioned membranes

Definitions

  • the invention relates to a sound absorber element with a one
  • Tensioning frame enclosing insulating material, which is spanned by a tensioning cover which forms a cover section covering the front of the tensioning frame and whose tensioning cover ends can be fastened to the tensioning frame.
  • DE102007033613A1 discloses a sound absorber element with a
  • the stenter frame holds an insulating material
  • a tension cover is provided, the ends of which are fastened on the rear side by a press-fitted clamping strip in a groove.
  • the present sound absorber element is only suitable to a limited extent, however, since on the one hand loosening the clamping strip is force-intensive and on the other hand tensioning the tension cover proves to be impractical, so one hand must be applied to the tension cover over the ends of the tension cover and the other The terminal strip can be inserted into the groove by hand.
  • sound absorber elements known from the prior art can often only insufficiently absorb various ambient noises. Presentation of the invention
  • the invention is therefore based on the object of proposing a sound absorber element of the type described at the outset, which despite a simple structure has a higher degree of sound absorption than previously known sound absorber elements.
  • the proposed invention should preferably enable not only a quick exchange of clamping covers, but also a simple retensioning of the same.
  • the invention achieves the stated problem in that a damping membrane covered by the cover section is provided between the insulating material and the cover section.
  • the damping membrane can for example consist of glass fiber or glass silk fabric and has a different natural frequency range than the insulating material, which is made, for example, of rock wool.
  • the insulation material can be provided with an insulation support on both sides and thus be implemented in a sandwich construction.
  • the tension cover can also have a further specific natural frequency range, whereby a high degree of sound absorption can be achieved despite a simple structure through the use of different materials.
  • the damping membrane can for example consist of glass fiber or glass silk fabric and has a different natural frequency range than the insulating material, which is made, for example, of rock wool.
  • the insulation material can be provided with an insulation support on both sides and thus be implemented in a sandwich construction.
  • the tension cover can also have a further specific natural frequency range, whereby a high degree of sound absorption can be achieved despite a simple structure through the use of different materials.
  • the damping membrane must be glued to the tenter frame.
  • the tensioning cover ends for even tensioning of the tensioning cover form receiving tabs for tensioning strips, which are each in
  • the tensioning cover which can for example consist of fire-resistant material, is covered in a simple manner, in that the tensioning cover is pulled onto the tensioning frame in a first step.
  • Clamping cover also has clamping cover ends that form receiving tabs for clamping strips arranged therein, whereby in a second step the
  • Clamping strips can be introduced into the clamping areas of the clamping frame provided for this purpose and fastened there.
  • the sound absorber element can be designed differently.
  • the clamping bars can each be in clamping areas between
  • Insulating material and clamping frame can be inserted and fastened there.
  • Fastening is particularly suitable for a tension cover with preferably four tension cover ends adjoining its cover side.
  • the tensioning cover is made on the tensioning frame by first placing its cover section on the tensioning frame in such a way that its front side is covered and then the preferably four adjoining the cover section
  • Clamping cover ends are placed around the clamping frame.
  • Cover section thus covers the front side of the clamping frame, in this embodiment the clamping cover ends cover both the clamping frame sides running essentially transversely to the front side and the rear side of the
  • Tenter frame The ends of the tensioning cover form receiving tabs for tensioning strips that can be freely displaced therein.
  • the length of a clamping bar must be designed so that it can be inserted into a clamping area between the insulating material and the clamping frame. Simple insertion is made possible by the fact that the receiving tabs form openings at both ends, from which the clamping bars can be pushed out at least so far that a first end of the clamping bars can be attached to the clamping area between the insulating material and the clamping frame.
  • the first end of the clamping strips is inserted into the mounting bracket in the clamping area.
  • the first end of the clamping bars is sunk into the clamping area so that the second end of the clamping bar can also be attached to the clamping area between the insulating material and the clamping frame.
  • By moving the clamping bar again, the second end is now also sunk into the clamping area.
  • the mounting tabs allow not only a simple insertion of the clamping bars, but also a re-tensioning of the clamping cover, namely by wrapping the clamping bars in the clamping cover ends before they are inserted into the clamping area or when they are in the clamping area. This allows the tension of the tension cover to be adapted on each of its sides the natural frequency of the sound absorber element can be adapted to any varying sound conditions.
  • the tensioning strips can each be introduced into tensioning areas on at least one of the tensioning frame sides and can be fastened there.
  • the tension cover can be designed as a tensioning stocking or as a tensioning hose. The tension stocking, which has only one opening, can therefore simply be pulled over the
  • the clamping frame is slipped until its stop opposite the opening rests on a first clamping frame side.
  • the opening of the tension cover is formed at least in sections by the tension cover ends. The clamping strips arranged in the receiving tabs of the ends of the clamping cover can thereby be brought into the clamping area of the first clamping frame side
  • the tensioning cover can also be designed as a tensioning hose having two opposing openings. In this case, both openings are formed at least in sections by the ends of the tensioning cover.
  • several clamping frame sides can also form clamping areas for inserting the clamping strips. Regardless of whether the tensioning cover is designed as a tensioning stocking or a tensioning hose, the tensioning of the tensioning cover can be retightened by wrapping the tensioning strips in the tensioning cover ends.
  • the tensioning cover tension the damping membrane on the tensioning frame.
  • the damping membrane does not have to be glued to the clamping frame, but rather is clamped down on the clamping frame by the force applied by the clamping cover.
  • the sound absorber element should now vary
  • the damping membrane can also be replaced without leaving any residue.
  • Bolt-shaped permanent magnet is broken, the magnetic circuit is closed over the permanent magnet and the clamping frame.
  • the permanent magnet can be glued to a wall, for example, whereby the sound absorber element can also be attached to glass or the like.
  • the tensioning frame for example aluminum, the sound absorber element can be seated securely but nevertheless easily on the permanent magnet.
  • fastening means are provided for fastening the clamping frame, which include a prismatic base body which has a circumferential groove around the prism axis and an eccentric axis of rotation parallel to the prism axis.
  • the fastening means is rotatably mounted on a fastening wall. While the circumferential groove of the fastening means serves as a receptacle for the tensioning frame, the prismatic base body with a hexagonal base, for example, spaced the sound absorber element from the fastening wall.
  • a tool can be attached to the prismatic base body, whereby the fastening means even after the insertion of the Clamping frame can be rotated about its axis of rotation in the circumferential groove. Since the axis of rotation is shifted parallel to the prism axis, a
  • eccentric axis of rotation If two fastening means according to the invention are now used for two opposing clamping frame legs, the eccentric design of the fastening means can wedge the clamping frame between the two fastening means and thereby cause an unauthorized person
  • Disassembly can be prevented without a suitable tool.
  • FIG. 2 shows a cross section corresponding to section II-II on a larger scale
  • FIG. 3 shows a cross section corresponding to section III-III on a larger scale
  • FIG. 4 shows a fastening means according to the invention in a side view
  • FIG. 5 shows a plan view corresponding to FIG. 4 on the same scale
  • FIG. 7 shows a construction variant of the device from FIG. 6 with a
  • FIG. 9 shows a sound absorber tower with sound absorber elements according to the invention.
  • Fig. 1 shows a plan view of an embodiment of a sound absorber element according to the invention, which has a clamping frame 1, which is of a
  • Clamping cover 2 is spanned. As can be seen in particular from FIG. 2, the tensioning cover 2 forms a cover section 3 which covers the front side of the tensioning frame 1 and the tensioning cover ends 4 adjoining the cover section 3.
  • the clamping reference ends 4 cover both the essentially transverse to Front of the clamping frame 1 extending clamping frame sides of the clamping frame 1 as well as its rear side.
  • the ends 4 of the tensioning cover each have a receiving tab 5 for uniform tension.
  • Clamping strips 6, 7, 8, 9 are arranged displaceably in the receiving tabs 5, which are open at both ends.
  • clamping reference ends 4 placed around the clamping frame 1.
  • the clamping bar 7 is then moved into the receiving tab 5 or out of the receiving tab 5 transversely to the joining direction 15 that a first end of the clamping bar 7 on
  • Clamping area 12 (Fig. 1) can be applied.
  • clamping bar 7 transversely to the joining direction 15, namely in the direction of the clamping area 12, the first end of the clamping bar 7 is sunk in the clamping area 12 so that the second end of the clamping bar 7 opposite the first end can also be attached to the clamping area 10 opposite the clamping area 12.
  • the second end of the clamping bar 7 is sunk in the clamping area 10, so that the
  • Clamping bar 7 engages both in the clamping area 10 and in the clamping area 12. Finally, the clamping bar 7 is sunk into the clamping area 11 by moving it in the joining direction 15. For easy handling, it is favorable that the length of the tensioning strip 7 is between I and L. It goes without saying that an analogous procedure can be used for the clamping strips 6, 8, 9. For a particularly secure fit, the clamping strips 6, 7, 8, 9 can also be clamped together by mutual flint gripping at their ends.
  • a damping membrane 16 is provided between the clamping frame 1 and the cover section 3 of the clamping cover 2.
  • Damping membrane 16 has a different natural frequency range than that
  • Sound absorber element used components are fire-retardant.
  • a seal 17, for example fleece, can also be arranged on the rear side of the sound absorber element, which ensures a clean and aesthetic closure of the rear side and prevents detached fibers of the insulating material 14 from falling out.
  • Fig. 3 discloses a fastening receptacle 18 for one on one
  • Permanent magnets 20 closed over the clamping frame 1, as a result of which a secure, but nevertheless easy-to-release seat of the sound absorber element is achieved.
  • FIGS. 4 and 5 The mode of operation of an alternative is shown in FIGS. 4 and 5
  • the fastening means 21 has a hexagonal prismatic base body 22 which is rotatably mounted on a fastening wall 19.
  • the base body 22 forms a circumferential groove 23 as a receptacle for the clamping frame 1.
  • the parallel displacement of the axis of rotation 24 to the prism axis 25 results in an eccentric axis of rotation 24.
  • Fastening means 21 are used for two opposing clamping frame legs of the clamping frame 1, the eccentric design of the fastening means 21 allows the clamping frame 1 to be wedged between the fastening means 21.
  • the tension cover 2 is designed as a tension stocking. If you put this over the clamping frame 1, this forms a stop for a first
  • Clamping frame side 26 On the other hand, it is open to a second clamping frame side 27.
  • the opening is formed by the ends 4 of the clamping cover.
  • the ones in the Mounting tabs 5 of the tensioning cover ends 4 arranged tensioning strips 6, 7 are inserted into the tensioning areas 10, 11 to tension the tensioning cover 2, the tensioning areas 10, 11 being narrowed by a separating strip 28 to form compartments.
  • An undesired sliding out of the clamping strips 6, 7 arranged in the receiving tabs 5 from the slots can be prevented by a cover 29 screwed onto the separating strip 28.
  • a tubular tensioning cover 2 is provided which is open towards two tensioning frame sides 27.
  • the clamping cover 2 can be perforated on the rear side of the clamping frame 1 in order to form a fastening receptacle 18 for a bolt-shaped permanent magnet 20 that engages in the clamping frame 1.
  • Fig. 8 shows a further design variant of the invention
  • the insulating material 14 is enclosed, that is, framed, by a tensioning frame 1.
  • the front of the tensioning frame 1 is spanned by a tensioning cover 2 which forms a cover section 3 that covers the front of the tensioning frame 1.
  • the ends of the tensioning cover 4 can be fastened to the tensioning frame 1 by means of simple clamps 30.
  • a damping membrane 16 is provided between the cover section 3 and the insulating material 14.
  • Natural frequency ranges of the insulating material 14, the damping membrane 16 and the tensioning cover 2 result in a particularly high degree of sound absorption. Each of the components is thus excited by a different frequency range of an acoustic signal, which attenuates the signal.
  • the sound absorber element according to the invention By using the sound absorber element according to the invention, the acoustics in enclosed spaces can accordingly be changed particularly easily.
  • the simple structure has the advantage that the sound absorber according to the invention can, for example, be used permanently or only temporarily in different environments. Due to the lightweight construction, it can also be used in
  • the insulation material can according to a
  • Sandwich construction can be arranged between two insulation supports 31.
  • the Insulating material carrier 31 can in turn have a different natural frequency range, as a result of which the degree of sound absorption is further improved and at the same time the installation of insulating material 14 is made easier.
  • FIG. 9 shows a sound absorber tower 32 composed of several sound absorber elements.
  • the sound absorber elements can be detachably attached to the frame 33, for example magnetic ones, whereby the
  • Sound absorber tower 32 can be adapted to different acoustic conditions required.
  • the sound absorber tower 32 can, for example, only be used temporarily in event rooms and simply when not in use
  • Sound absorption elements can be varied in the degree of sound absorption.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

The invention relates to a sound absorber element comprising a tensioning frame (1) surrounding an insulating material (14), which is encompassed by a tensioned cover (2) forming a cover section (3) covering the front side of the tensioning frame (1) and with the ends (4) of said tensioned cover being securable to the tensioning frame (1). In order to allow for a higher degree of sound absorption as a previously known sound absorber element, despite a simple construction, it is proposed that a damping membrane (16) covered by the cover section (3) is provided between the insulating material (14) and the cover section (3).

Description

Schallabsorberelement mit einem einen Dämmstoff einfassenden Spannrahmen Sound absorber element with a clamping frame enclosing an insulating material
Technisches Gebiet Technical area
Die Erfindung bezieht sich auf ein Schallabsorberelement mit einem einen The invention relates to a sound absorber element with a one
Dämmstoff einfassenden Spannrahmen, der von einem Spannbezug umspannt ist, der einen die Vorderseite des Spannrahmens abdeckenden Deckabschnitt bildet und dessen Spannbezugenden am Spannrahmen befestigbar sind. Tensioning frame enclosing insulating material, which is spanned by a tensioning cover which forms a cover section covering the front of the tensioning frame and whose tensioning cover ends can be fastened to the tensioning frame.
Stand der Technik State of the art
Aus der DE102007033613A1 ist ein Schallabsorberelement mit einem DE102007033613A1 discloses a sound absorber element with a
Spannrahmen vorbekannt. Der Spannrahmen fasst einen Dämmstoff, Tenter frame previously known. The stenter frame holds an insulating material,
beispielsweise aus Glasgarnen hergestelltes Gewebe, ein. Zur Abdeckung des Dämmstoffes ist ein Spannbezug vorgesehen, dessen Spannbezugenden auf der Rückseite durch eine pressgepasste Klemmleiste in einer Nut befestigt sind. Vor allem bei Schallabsorberelementen, die neben der Schalldämmung einen dekorativen Zweck erfüllen sollen, kann ein regelmäßiges Wechseln des for example fabric made from glass yarns. To cover the insulating material, a tension cover is provided, the ends of which are fastened on the rear side by a press-fitted clamping strip in a groove. Especially in the case of sound absorber elements, which are supposed to have a decorative purpose in addition to sound insulation, the
Spannbezugs gewünscht sein. Das vorliegende Schallabsorberelement eignet sich jedoch nur bedingt dazu, da zum einen das Lösen der Klemmleiste kraftaufwändig ist und sich zum anderen das Spannen des Spannbezugs als unpraktisch erweist, so muss mit einer Hand über die Spannbezugenden eine Spannung auf den Spannbezug aufgebracht werden und mit der anderen Hand die Klemmleiste in die Nut eingebracht werden. Darüber hinaus können aus dem Stand der Technik vorbekannte Schallabsorberelemente diverse Umgebungsgeräusche oft nur unzureichend absorbieren. Darstellung der Erfindung Be desired. The present sound absorber element is only suitable to a limited extent, however, since on the one hand loosening the clamping strip is force-intensive and on the other hand tensioning the tension cover proves to be impractical, so one hand must be applied to the tension cover over the ends of the tension cover and the other The terminal strip can be inserted into the groove by hand. In addition, sound absorber elements known from the prior art can often only insufficiently absorb various ambient noises. Presentation of the invention
Der Erfindung liegt somit die Aufgabe zugrunde, ein Schallabsorberelement der eingangs geschilderten Art vorzuschlagen, das trotz eines einfachen Aufbaus einen höheren Schallabsorptionsgrad als vorbekannte Schallabsorberelemente aufweist. Gleichzeitig soll die vorgeschlagene Erfindung vorzugsweise nicht nur einen schnellen Austausch von Spannbezügen, sondern auch ein einfaches Nachspannen desselbigen ermöglichen. The invention is therefore based on the object of proposing a sound absorber element of the type described at the outset, which despite a simple structure has a higher degree of sound absorption than previously known sound absorber elements. At the same time, the proposed invention should preferably enable not only a quick exchange of clamping covers, but also a simple retensioning of the same.
Die Erfindung löst die gestellte Aufgabe dadurch, dass zwischen dem Dämmstoff und dem Deckabschnitt eine vom Deckabschnitt überdeckte Dämpfungsmembran vorgesehen ist. Die Dämpfungsmembran kann beispielsweise aus Glasfaser oder Glasseidengewebe bestehen und hat einen anderen Eigenfrequenzbereich als der Dämmstoff, der zum Beispiel aus Steinwolle gefertigt ist. Der Dämmstoff kann beiderseits mit einem Dämmstoffträger versehen und somit in Sandwichbauweise ausgeführt sein. Der Spannbezug kann darüber hinaus einen weiteren spezifischen Eigenfrequenzbereich aufweisen, wodurch trotz eines einfachen Aufbaus durch den Einsatz unterschiedlicher Materialien ein hoher Schallabsorptionsgrad erzielt werden kann. In einer besonders einfachen Ausführungsform kann die The invention achieves the stated problem in that a damping membrane covered by the cover section is provided between the insulating material and the cover section. The damping membrane can for example consist of glass fiber or glass silk fabric and has a different natural frequency range than the insulating material, which is made, for example, of rock wool. The insulation material can be provided with an insulation support on both sides and thus be implemented in a sandwich construction. The tension cover can also have a further specific natural frequency range, whereby a high degree of sound absorption can be achieved despite a simple structure through the use of different materials. In a particularly simple embodiment, the
Dämpfungsmembran auf den Spannrahmen aufgeklebt sein. The damping membrane must be glued to the tenter frame.
Um einen einfachen Austausch der Spannbezüge zu ermöglichen, wird To enable easy replacement of the tension covers,
vorgeschlagen, dass die Spannbezugenden zur gleichmäßigen Spannung des Spannbezugs Aufnahmelaschen für Spannleisten ausbilden, die je in proposed that the tensioning cover ends for even tensioning of the tensioning cover form receiving tabs for tensioning strips, which are each in
Spannbereiche des Spannrahmens einführbar und dort befestigbar sind. Zufolge diese Maßnahmen erfolgt das Bespannen des Spannbezugs, der beispielsweise aus brandfestem Stoff bestehen kann, auf einfache Art und Weise, in dem in einem ersten Schritt der Spannbezug auf den Spannrahmen aufgezogen wird. Der Clamping areas of the clamping frame can be introduced and fastened there. As a result of these measures, the tensioning cover, which can for example consist of fire-resistant material, is covered in a simple manner, in that the tensioning cover is pulled onto the tensioning frame in a first step. The
Spannbezug weist zudem Spannbezugenden auf, die Aufnahmelaschen für darin angeordnete Spannleisten ausbilden, wodurch in einem zweiten Schritt die Clamping cover also has clamping cover ends that form receiving tabs for clamping strips arranged therein, whereby in a second step the
Spannleisten in dafür vorgesehene Spannbereiche des Spannrahmens eingeführt und dort befestigt werden können. Das Schallabsorberelement kann dabei unterschiedlich ausgestaltet sein. In einer Ausführungsform können die Spannleisten je in Spannbereiche zwischen Clamping strips can be introduced into the clamping areas of the clamping frame provided for this purpose and fastened there. The sound absorber element can be designed differently. In one embodiment, the clamping bars can each be in clamping areas between
Dämmstoff und Spannrahmen einführbar und dort befestigbar sein. Diese Insulating material and clamping frame can be inserted and fastened there. These
Befestigung eignet sich besonders für einen Spannbezug mit vorzugsweise vier an dessen Deckseite anschließende Spannbezugenden. Die Bespannung des Fastening is particularly suitable for a tension cover with preferably four tension cover ends adjoining its cover side. The covering of the
Spannbezugs am Spannrahmen erfolgt, in dem zuerst dessen Deckabschnitt so auf den Spannrahmen aufgelegt wird, dass seine Vorderseite abgedeckt wird und anschließend die vorzugsweise vier an den Deckabschnitt angrenzenden The tensioning cover is made on the tensioning frame by first placing its cover section on the tensioning frame in such a way that its front side is covered and then the preferably four adjoining the cover section
Spannbezugenden um den Spannrahmen gestülpt werden. Während der Clamping cover ends are placed around the clamping frame. During the
Deckabschnitt also die Vorderseite des Spannrahmens abdeckt, bedecken die Spannbezugenden in dieser Ausführungsform sowohl die im Wesentlichen quer zur Vorderseite verlaufenden Spannrahmenseiten als auch die Rückseite des Cover section thus covers the front side of the clamping frame, in this embodiment the clamping cover ends cover both the clamping frame sides running essentially transversely to the front side and the rear side of the
Spannrahmens. Die Spannbezugenden bilden dabei Aufnahmelaschen für darin frei verschiebbare Spannleisten aus. Es versteht sich dabei von selbst, dass die Länge einer Spannleiste dabei so ausgelegt sein muss, dass diese in einen Spannbereich zwischen Dämmstoff und Spannrahmen einführbar ist. Ein einfaches Einführen wird dadurch ermöglicht, dass die Aufnahmelaschen beiderends Öffnungen ausbilden, aus denen die Spannleisten wenigstens soweit herausgeschoben werden können, dass ein erstes Ende der Spannleisten an den Spannbereich zwischen Dämmstoff und Spannrahmen angesetzt werden kann. Durch ein Zurückschieben der Tenter frame. The ends of the tensioning cover form receiving tabs for tensioning strips that can be freely displaced therein. It goes without saying that the length of a clamping bar must be designed so that it can be inserted into a clamping area between the insulating material and the clamping frame. Simple insertion is made possible by the fact that the receiving tabs form openings at both ends, from which the clamping bars can be pushed out at least so far that a first end of the clamping bars can be attached to the clamping area between the insulating material and the clamping frame. By pushing back the
Spannleisten in die Aufnahmelasche wird das erste Ende in den Spannbereich eingeführt. Das erste Ende der Spannleisten wird dabei soweit in den Spannbereich versenkt, dass das zweite Ende der Spannleiste ebenfalls an den Spannbereich zwischen Dämmstoff und Spannrahmen angesetzt werden kann. Durch ein erneutes Verschieben der Spannleiste wird nun auch das zweite Ende in den Spannbereich versenkt. Dies kann mit allen Spannleisten analog durchgeführt werden. Die Aufnahmelaschen ermöglichen dabei nicht nur ein einfaches Einsetzen der Spannleisten, sondern ebenfalls ein Nachspannen des Spannbezugs, nämlich indem die Spannleisten in die Spannbezugenden eingewickelt werden, bevor sie in den Spannbereich eingeführt werden bzw. wenn sie sich im Spannbereich befinden. Dadurch kann die Spannung des Spannbezugs an jeder seiner Seiten adaptiert und die Eigenfrequenz des Schallabsorberelements an etwaige variierende Schallbedingungen angepasst werden. The first end of the clamping strips is inserted into the mounting bracket in the clamping area. The first end of the clamping bars is sunk into the clamping area so that the second end of the clamping bar can also be attached to the clamping area between the insulating material and the clamping frame. By moving the clamping bar again, the second end is now also sunk into the clamping area. This can be done in the same way with all clamping bars. The mounting tabs allow not only a simple insertion of the clamping bars, but also a re-tensioning of the clamping cover, namely by wrapping the clamping bars in the clamping cover ends before they are inserted into the clamping area or when they are in the clamping area. This allows the tension of the tension cover to be adapted on each of its sides the natural frequency of the sound absorber element can be adapted to any varying sound conditions.
Um einen besonders schnellen Austausch des Spannbezugs zu ermöglichen, wird vorgeschlagen, dass die Spannleisten je in Spannbereiche an wenigstens einer der Spannrahmenseiten einführbar und dort befestigbar sind. In diesem Fall kann der Spannbezug als Spannstrumpf oder als Spannschlauch ausgebildet sein. Der nur eine Öffnung aufweisende Spannstrumpf kann demnach einfach über den In order to enable a particularly quick exchange of the tensioning cover, it is proposed that the tensioning strips can each be introduced into tensioning areas on at least one of the tensioning frame sides and can be fastened there. In this case, the tension cover can be designed as a tensioning stocking or as a tensioning hose. The tension stocking, which has only one opening, can therefore simply be pulled over the
Spannrahmen gestülpt werden bis sein der Öffnung gegenüberliegender Anschlag auf einer ersten Spannrahmenseite aufliegt. Die Öffnung des Spannbezugs wird dabei wenigstens abschnittsweise von den Spannbezugenden gebildet. Die in den Aufnahmelaschen der Spannbezugenden angeordneten Spannleisten können dadurch in den Spannbereich der der ersten Spannrahmenseite The clamping frame is slipped until its stop opposite the opening rests on a first clamping frame side. The opening of the tension cover is formed at least in sections by the tension cover ends. The clamping strips arranged in the receiving tabs of the ends of the clamping cover can thereby be brought into the clamping area of the first clamping frame side
gegenüberliegenden zweiten Spannrahmenseite eingeführt werden. Konstruktiv einfache Verhältnisse ergeben sich dabei, wenn die Spannbereiche von einem zur Spannrahmenseite hin offenen Profil aufgespannt werden, in dem Einschubfächer für Spannleisten vorgesehen sind und der mit einem Deckel verschließbar ist. Der Deckel kann beispielsweile auf das Profil aufgesteckt oder angeschraubt werden. Wie bereits erwähnt, kann der Spannbezug auch als zwei gegenüberliegenden Öffnungen aufweisenden Spannschlauch ausgebildet sein. Beide Öffnungen werden in diesem Fall wenigstens abschnittsweise von den Spannbezugenden gebildet. Zur Aufnahme der in den Aufnahmelaschen der Spannbezugenden angeordneten Spannleisten können also auch mehrere Spannrahmenseiten Spannbereiche zum Einführen der Spannleisten ausbilden. Unabhängig davon, ob der Spannbezug als Spannstrumpf oder Spannschlauch ausgebildet ist, kann ein Nachspannen des Spannbezugs durch ein Einwickeln der Spannleisten in die Spannbezugenden erzielt werden. opposite second clamping frame side are introduced. Structurally simple conditions arise when the clamping areas are spanned by a profile that is open towards the side of the clamping frame, in which compartments are provided for clamping strips and which can be closed with a cover. The cover can, for example, be slipped or screwed onto the profile. As already mentioned, the tensioning cover can also be designed as a tensioning hose having two opposing openings. In this case, both openings are formed at least in sections by the ends of the tensioning cover. To accommodate the clamping strips arranged in the mounting tabs of the clamping cover ends, several clamping frame sides can also form clamping areas for inserting the clamping strips. Regardless of whether the tensioning cover is designed as a tensioning stocking or a tensioning hose, the tensioning of the tensioning cover can be retightened by wrapping the tensioning strips in the tensioning cover ends.
Um das Schallabsorberelement nicht nur an optisch, sondern auch an akustisch variierende Anforderungen anzupassen zu können, wird vorgeschlagen, dass der Spannbezug die Dämpfungsmembran am Spannrahmen niederspannt. Dadurch muss die Dämpfungsmembran nicht an den Spannrahmen geklebt werden, sondern wird durch die vom Spannbezug aufgebrachte Kraft am Spannrahmen niedergespannt. Soll nun das Schallabsorberelement an variierende In order to be able to adapt the sound absorber element not only to visually but also to acoustically varying requirements, it is proposed that the tensioning cover tension the damping membrane on the tensioning frame. As a result, the damping membrane does not have to be glued to the clamping frame, but rather is clamped down on the clamping frame by the force applied by the clamping cover. The sound absorber element should now vary
Randbedingungen angepasst werden, so kann auch die Dämpfungsmembran rückstandfrei ausgetauscht werden. If boundary conditions are adapted, the damping membrane can also be replaced without leaving any residue.
Damit auch ein Schallabsorberelement gegen beliebige andere erfindungsgemäße Schallabsorberelemente ausgetauscht werden kann, empfiehlt es sich, dass der Spannbezug zu einer auf der Rückseite des Spannrahmens angeordneten So that a sound absorber element can also be exchanged for any other sound absorber elements according to the invention, it is recommended that the tensioning cover be arranged on the back of the tensioning frame
Befestigungsaufnahme für einen in den Spannrahmen eingreifenden Fastening receptacle for one engaging in the clamping frame
bolzenförmigen Permanentmagneten durchbrochen ist, wobei der magnetische Kreis über den Permanentmagneten und den Spannrahmen geschlossen ist. Der Permanentmagnet kann beispielsweise auf eine Wand aufgeklebt werden, wodurch das Schallabsorberelement auch auf Glas oder dergleichen befestigt werden kann. Durch den Einsatz eines paramagnetischen Materials als Spannrahmen, beispielsweise Aluminium, kann ein sicherer aber dennoch einfach zu lösender Sitz des Schallabsorberelements auf dem Permanentmagneten erzielt werden. Bolt-shaped permanent magnet is broken, the magnetic circuit is closed over the permanent magnet and the clamping frame. The permanent magnet can be glued to a wall, for example, whereby the sound absorber element can also be attached to glass or the like. By using a paramagnetic material as the tensioning frame, for example aluminum, the sound absorber element can be seated securely but nevertheless easily on the permanent magnet.
Bei einer Versuchsreihe zur Messung der erreichten Schallabsorptionsgrade des erfindungsgemäßen Schallabsorberelements hat sich herausgestellt, dass die besten Ergebnisse erreicht werden, wenn der Spannrahmen von einer Wand beabstandet gelagert ist. Um daher in einer besonders bevorzugten Form der Erfindung deren Schallabsorptionsvermögen noch weiter zu erhöhen und In a series of tests to measure the degrees of sound absorption achieved by the sound absorber element according to the invention, it has been found that the best results are achieved if the clamping frame is mounted at a distance from a wall. In order, therefore, in a particularly preferred form of the invention, to increase and even further their sound absorption capacity
gleichzeitig ein unbefugtes Entfernen des Schallabsorberelements zu verhindern, wird vorgeschlagen, dass zur Befestigung des Spannrahmens Befestigungsmittel vorgesehen sind, die einen prismatischen Grundkörper umfassen, der eine um die Prismenachse umlaufende Umfangsnut und eine zur Prismenachse parallele exzentrische Drehachse aufweist. Das Befestigungsmittel wird drehbar an einer Befestigungswand montiert. Während die Umfangsnut des Befestigungsmittels als Aufnahme für den Spannrahmen dient, beabstandet der prismatische Grundkörper mit einer beispielsweisen hexagonalen Grundfläche das Schallabsorberelement von der Befestigungswand. An den prismatischen Grundkörper kann ein Werkzeug angesetzt werden, wodurch das Befestigungsmittel auch nach Einsetzen des Spannrahmens in die Umfangsnut um seine Drehachse gedreht werden kann. Da die Drehachse parallel zur Prismenachse verschoben ist, ergibt sich eine To prevent unauthorized removal of the sound absorber element at the same time, it is proposed that fastening means are provided for fastening the clamping frame, which include a prismatic base body which has a circumferential groove around the prism axis and an eccentric axis of rotation parallel to the prism axis. The fastening means is rotatably mounted on a fastening wall. While the circumferential groove of the fastening means serves as a receptacle for the tensioning frame, the prismatic base body with a hexagonal base, for example, spaced the sound absorber element from the fastening wall. A tool can be attached to the prismatic base body, whereby the fastening means even after the insertion of the Clamping frame can be rotated about its axis of rotation in the circumferential groove. Since the axis of rotation is shifted parallel to the prism axis, a
exzentrische Drehachse. Werden nun zwei erfindungsgemäße Befestigungsmittel für zwei einander gegenüberliegende Spannrahmenschenkel eingesetzt, so kann durch die exzentrische Ausbildung der Befestigungsmittel der Spannrahmen zwischen beiden Befestigungsmitteln verkeilt und dadurch ein unbefugtes eccentric axis of rotation. If two fastening means according to the invention are now used for two opposing clamping frame legs, the eccentric design of the fastening means can wedge the clamping frame between the two fastening means and thereby cause an unauthorized person
Abmontieren ohne ein geeignetes Werkzeug verhindert werden. Disassembly can be prevented without a suitable tool.
Kurze Beschreibung der Erfindung Brief description of the invention
In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen The subject matter of the invention is shown in the drawing, for example. Show it
Fig. 1 eine Draufsicht des erfindungsgemäßen Schallabsorberelements, 1 shows a top view of the sound absorber element according to the invention,
Fig. 2 einen dem Schnitt ll-ll entsprechenden Querschnitt im größeren Maßstab, Fig. 3 einen dem Schnitt lll-lll entsprechenden Querschnitt im größeren Maßstab, Fig. 4 ein erfindungsgemäßes Befestigungsmittel in Seitenansicht, 2 shows a cross section corresponding to section II-II on a larger scale, FIG. 3 shows a cross section corresponding to section III-III on a larger scale, FIG. 4 shows a fastening means according to the invention in a side view,
Fig. 5 eine der Fig. 4 entsprechenden Draufsicht in gleichem Maßstab, 5 shows a plan view corresponding to FIG. 4 on the same scale,
Fig. 6 einen Querschnitt einer alternativen Ausführungsform des 6 shows a cross section of an alternative embodiment of the
erfindungsgemäßen Schallabsorberelements, sound absorber element according to the invention,
Fig. 7 eine Konstruktionsvariante der Vorrichtung aus Fig. 6 mit einem 7 shows a construction variant of the device from FIG. 6 with a
schlauchförmigen Spannbezug, tubular stretch cover,
Fig. 8 eine Konstruktionsvariante eines erfindungsgemäßen 8 shows a construction variant of an inventive
Schallabsorberelements im Querschnitt und Sound absorber element in cross section and
Fig. 9 einen Schallabsorberturm mit erfindungsgemäßen Schallabsorberelementen. 9 shows a sound absorber tower with sound absorber elements according to the invention.
Wege zur Ausführung der Erfindung Ways of Carrying Out the Invention
Fig. 1 zeigt eine Draufsicht einer Ausführungsform eines erfindungsgemäßen Schallabsorberelements, das einen Spannrahmen 1 aufweist, der von einem Fig. 1 shows a plan view of an embodiment of a sound absorber element according to the invention, which has a clamping frame 1, which is of a
Spannbezug 2 umspannt ist. Wie insbesondere der Fig. 2 zu entnehmen ist, bildet der Spannbezug 2 einen Deckabschnitt 3, der die Vorderseite des Spannrahmens 1 bedeckt und an den Deckabschnitt 3 angrenzende Spannbezugenden 4 aus. Die Spannbezugenden 4 decken dabei sowohl die im Wesentlichen quer zur Vorderseite des Spannrahmens 1 verlaufenden Spannrahmenseiten des Spannrahmens 1 als auch dessen Rückseite ab. Zur gleichmäßigen Spannung weisen die Spannbezugenden 4 je eine Aufnahmelasche 5 auf. In den beiderends offenen Aufnahmelaschen 5 sind Spannleisten 6, 7, 8, 9 verschiebbar angeordnet. Clamping cover 2 is spanned. As can be seen in particular from FIG. 2, the tensioning cover 2 forms a cover section 3 which covers the front side of the tensioning frame 1 and the tensioning cover ends 4 adjoining the cover section 3. The clamping reference ends 4 cover both the essentially transverse to Front of the clamping frame 1 extending clamping frame sides of the clamping frame 1 as well as its rear side. The ends 4 of the tensioning cover each have a receiving tab 5 for uniform tension. Clamping strips 6, 7, 8, 9 are arranged displaceably in the receiving tabs 5, which are open at both ends.
Die Prozedur des Einführens der Spannleisten 6, 7, 8, 9 der in den Figs. 1 bis 4 dargestellten Ausführungsform in die dafür vorgesehenen Spannbereiche The procedure of inserting the clamping bars 6, 7, 8, 9 of the in Figs. 1 to 4 shown embodiment in the intended clamping areas
10,11 ,12,13 zwischen Rückseite des Spannrahmens 1 und dem Dämmstoff 14 wird anhand der Spannleiste 7 dargelegt. Zuerst wird der Deckabschnitt 3 des 10, 11, 12, 13 between the rear side of the clamping frame 1 and the insulating material 14 is shown on the basis of the clamping bar 7. First the deck section 3 of the
Spannbezugs 2 auf die Vorderseite des Spannrahmens 1 aufgelegt und die Clamping cover 2 placed on the front of the clamping frame 1 and the
Spannbezugenden 4 um den Spannrahmen 1 gestülpt. Die Spannleiste 7 wird anschießend so in die Aufnahmelasche 5 bzw. aus der Aufnahmelasche 5 quer zur Fügerichtung 15 verschoben, dass ein erstes Ende der Spannleiste 7 am Clamping reference ends 4 placed around the clamping frame 1. The clamping bar 7 is then moved into the receiving tab 5 or out of the receiving tab 5 transversely to the joining direction 15 that a first end of the clamping bar 7 on
Spannbereich 12 (Fig. 1 ) angesetzt werden kann. Durch Verschieben der Clamping area 12 (Fig. 1) can be applied. By moving the
Spannleiste 7 quer zur Fügerichtung 15, nämlich in Richtung des Spannbereichs 12, wird das erste Ende der Spannleiste 7 im Spannbereich 12 soweit versenkt, dass auch das dem ersten Ende gegenüberliegende zweite Ende der Spannleiste 7 am dem Spannbereich 12 gegenüberliegenden Spannbereich 10 angesetzt werden kann. Durch ein erneutes Verschieben in die nun entgegengesetzte Richtung wird das zweite Ende der Spannleiste 7 im Spannbereich 10 versenkt, sodass die Clamping bar 7 transversely to the joining direction 15, namely in the direction of the clamping area 12, the first end of the clamping bar 7 is sunk in the clamping area 12 so that the second end of the clamping bar 7 opposite the first end can also be attached to the clamping area 10 opposite the clamping area 12. By moving it again in the opposite direction, the second end of the clamping bar 7 is sunk in the clamping area 10, so that the
Spannleiste 7 sowohl in den Spannbereich 10 als auch in den Spannbereich 12 eingreift. Zuletzt wird die Spannleiste 7 noch durch ein Verschieben in Fügerichtung 15 in den Spannbereich 1 1 versenkt. Für eine einfache Flandhabung ist es günstig, dass die Länge der Spannleiste 7 zwischen I und L liegt. Es versteht sich dabei von selbst, dass für die Spannleisten 6,8,9 in analoger Weise vorgegangen werden kann. Für einen besonders sicheren Sitz können die Spannleisten 6, 7, 8, 9 zusätzlich durch gegenseitiges Flintergreifen an deren Enden miteinander verspannt werden. Clamping bar 7 engages both in the clamping area 10 and in the clamping area 12. Finally, the clamping bar 7 is sunk into the clamping area 11 by moving it in the joining direction 15. For easy handling, it is favorable that the length of the tensioning strip 7 is between I and L. It goes without saying that an analogous procedure can be used for the clamping strips 6, 8, 9. For a particularly secure fit, the clamping strips 6, 7, 8, 9 can also be clamped together by mutual flint gripping at their ends.
Wie in der Fig. 2 dargestellt, ist zwischen Spannrahmen 1 und Deckabschnitt 3 des Spannbezugs 2 eine Dämpfungsmembran 16 vorgesehen. Die As shown in FIG. 2, a damping membrane 16 is provided between the clamping frame 1 and the cover section 3 of the clamping cover 2. The
Dämpfungsmembran 16 weist einen anderen Eigenfrequenzberiech als der Damping membrane 16 has a different natural frequency range than that
Spannbezug 2 und der Dämmstoff 14 auf, wodurch der Schallabsorptionsgrad im Gegensatz zu vorbekannten Schallabsorberelementen deutlich erhöht werden kann. Zur Sicherung der Brandschutzkriterien ist es vorteilhaft, wenn alle für das Clamping cover 2 and the insulating material 14, whereby the sound absorption level in In contrast to previously known sound absorber elements can be increased significantly. To ensure that the fire protection criteria are met, it is advantageous if everyone agrees
Schallabsorberelement verwendeten Bauteile brandhemmend ausgebildet sind. Auf der Rückseite des Schallabsorberelements kann zudem eine Abdichtung 17, beispielsweise Vlies, angeordnet sein, die für einen sauberen und ästhetischen Abschluss der Rückseite sorgt und das Herausfallen von abgelösten Fasern des Dämmstoffes 14 verhindert. Sound absorber element used components are fire-retardant. A seal 17, for example fleece, can also be arranged on the rear side of the sound absorber element, which ensures a clean and aesthetic closure of the rear side and prevents detached fibers of the insulating material 14 from falling out.
Die Fig. 3 offenbart eine Befestigungsaufnahme 18 für einen auf eine Fig. 3 discloses a fastening receptacle 18 for one on one
Befestigungswand 19 aufgeklebten Permanentmagneten 20. Ist der Spannrahmen 1 paramagnetisch ausgebildet, so wird der magnetische Kreis des Fastening wall 19 glued permanent magnets 20. If the tensioning frame 1 is paramagnetic, the magnetic circuit of the
Permanentmagneten 20 über den Spannrahmen 1 geschlossen, wodurch ein sicherer, aber dennoch einfach zu lösender Sitz des Schallabsorberelements erreicht wird. Permanent magnets 20 closed over the clamping frame 1, as a result of which a secure, but nevertheless easy-to-release seat of the sound absorber element is achieved.
Aus den Fig. 4 und Fig. 5 geht die Funktionsweise eines alternativen The mode of operation of an alternative is shown in FIGS. 4 and 5
Befestigungsmittels 21 hervor. Das Befestigungsmittel 21 weist einen hexagonal prismatischen Grundkörper 22 auf, der drehbar an einer Befestigungswand 19 gelagert ist. Der Grundkörper 22 bildet dabei eine Umfangsnut 23 als Aufnahme für den Spannrahmen 1 auf. Durch die parallele Verschiebung der Drehachse 24 zur Prismenachse 25 ergibt sich eine exzentrische Drehachse 24. Durch Verdrehen des Befestigungsmittels 21 kommt es zu einer Vergrößerung der Überlappung zwischen Spannrahmen 1 und Grundkörper 22. Werden zwei oder mehr Fastening means 21 emerge. The fastening means 21 has a hexagonal prismatic base body 22 which is rotatably mounted on a fastening wall 19. The base body 22 forms a circumferential groove 23 as a receptacle for the clamping frame 1. The parallel displacement of the axis of rotation 24 to the prism axis 25 results in an eccentric axis of rotation 24. By rotating the fastening means 21, the overlap between the clamping frame 1 and the base body 22 increases. If two or more
Befestigungsmittel 21 für zwei einander gegenüberliegende Spannrahmenschenkel des Spannrahmens 1 eingesetzt, so kann durch die exzentrische Ausbildung der Befestigungsmittel 21 der Spannrahmen 1 zwischen den Befestigungsmitteln 21 verkeilt werden. Fastening means 21 are used for two opposing clamping frame legs of the clamping frame 1, the eccentric design of the fastening means 21 allows the clamping frame 1 to be wedged between the fastening means 21.
In der Fig. 6 ist der Spannbezug 2 als Spannstrumpf ausgebildet. Stülpt man diesen über den Spannrahmen 1 , so bildet dieser einen Anschlag für eine erste In FIG. 6, the tension cover 2 is designed as a tension stocking. If you put this over the clamping frame 1, this forms a stop for a first
Spannrahmenseite 26. Zu einer zweiten Spannrahmenseite 27 ist er hingegen geöffnet. Die Öffnung ist dabei von den Spannbezugenden 4 gebildet. Die in den Aufnahmelaschen 5 der Spannbezugenden 4 angeordneten Spannleisten 6, 7 werden zum Spannen des Spannbezugs 2 in die Spannbereiche 10, 1 1 eingeführt, wobei die Spannbereiche 10, 1 1 durch eine Trennleiste 28 zu Einschubfächern verengt werden. Ein unerwünschtes Herausgleiten der in den Aufnahmelaschen 5 angeordneten Spannleisten 6, 7 aus den Einschubfächern kann durch einen an der Trennleiste 28 angeschraubten Deckel 29 verhindert werden. Gemäß der Clamping frame side 26. On the other hand, it is open to a second clamping frame side 27. The opening is formed by the ends 4 of the clamping cover. The ones in the Mounting tabs 5 of the tensioning cover ends 4 arranged tensioning strips 6, 7 are inserted into the tensioning areas 10, 11 to tension the tensioning cover 2, the tensioning areas 10, 11 being narrowed by a separating strip 28 to form compartments. An undesired sliding out of the clamping strips 6, 7 arranged in the receiving tabs 5 from the slots can be prevented by a cover 29 screwed onto the separating strip 28. According to the
Aufführungsform nach Fig. 7 ist ein schlauchförmiger Spannbezug 2 vorgesehen, der zu zwei Spannrahmenseiten 27 hin geöffnet ist. Der Spannbezug 2 kann bei allen Ausführungsformen auf der Rückseite des Spannrahmens 1 durchbrochen sein, um eine Befestigungsaufnahme 18 für einen in den Spannrahmen 1 eingreifenden bolzenförmigen Permanentmagneten 20 auszubilden. According to FIG. 7, a tubular tensioning cover 2 is provided which is open towards two tensioning frame sides 27. In all embodiments, the clamping cover 2 can be perforated on the rear side of the clamping frame 1 in order to form a fastening receptacle 18 for a bolt-shaped permanent magnet 20 that engages in the clamping frame 1.
Fig. 8 zeigt eine weitere Konstruktionsvariante des erfindungsgemäßen Fig. 8 shows a further design variant of the invention
Schallabsorberelements. Der Dämmstoff 14 ist dabei von einem Spannrahmen 1 eingefasst, also umrahmt. Die Vorderseite des Spannrahmens 1 ist von einem Spannbezug 2 umspannt, der einen die Vorderseite des Spannrahmens 1 abdeckenden Deckabschnitt 3 bildet. Die Spannbezugenden 4 können über einfache Klammern 30 am Spannrahmen 1 befestigt sein. Erfindungsgemäß ist zwischen dem Deckabschnitt 3 und dem Dämmstoff 14 eine Dämpfungsmembran 16 vorgesehen. Durch die Überlagerung der unterschiedlichen Sound absorber element. The insulating material 14 is enclosed, that is, framed, by a tensioning frame 1. The front of the tensioning frame 1 is spanned by a tensioning cover 2 which forms a cover section 3 that covers the front of the tensioning frame 1. The ends of the tensioning cover 4 can be fastened to the tensioning frame 1 by means of simple clamps 30. According to the invention, a damping membrane 16 is provided between the cover section 3 and the insulating material 14. By superimposing the different
Eigenfrequenzbereiche des Dämmstoffes 14, der Dämpfungsmembran 16 und des Spannbezugs 2 ergibt sich ein besonders hoher Schallabsorptionsgrad. Jede der Komponenten wird somit von einem anderen Frequenzbereich eines akustischen Signals angeregt, wodurch das Signal abgeschwächt wird. Durch die Anwendung des erfindungsgemäßen Schallabsorberelements kann demnach die Akustik in geschlossenen Räumen besonders einfach verändert werden. Der einfache Aufbau hat den Vorteil, dass der erfindungsgemäße Schallabsorber beispielsweise dauerhaft oder nur temporär in unterschiedlichen Umgebungen eingesetzt werden kann. Aufgrund der Leichtbauweise ist beispielsweise auch der Einsatz in Natural frequency ranges of the insulating material 14, the damping membrane 16 and the tensioning cover 2 result in a particularly high degree of sound absorption. Each of the components is thus excited by a different frequency range of an acoustic signal, which attenuates the signal. By using the sound absorber element according to the invention, the acoustics in enclosed spaces can accordingly be changed particularly easily. The simple structure has the advantage that the sound absorber according to the invention can, for example, be used permanently or only temporarily in different environments. Due to the lightweight construction, it can also be used in
Fahrzeugen, wie beispielsweise Flugzeugen oder Booten an Türen oder einfachen Rahmenkonstruktionen denkbar. Der Dämmstoff kann gemäß einer Vehicles, such as airplanes or boats on doors or simple frame structures, are conceivable. The insulation material can according to a
Sandwichbauweise zwischen zwei Dämmstoffträger 31 angeordnet sein. Der Dämmstoffträger 31 kann wiederum einen anderen Eigenfrequenzbereich aufweisen, wodurch sich der Schallabsorptionsgrad weiter verbessert und gleichzeitig der Einbau des Dämmstoffes 14 erleichtert wird. Sandwich construction can be arranged between two insulation supports 31. The Insulating material carrier 31 can in turn have a different natural frequency range, as a result of which the degree of sound absorption is further improved and at the same time the installation of insulating material 14 is made easier.
Fig. 9 zeigt einen aus mehreren Schallabsorberelementen zusammengesetzten Schallabsorberturm 32. Die Schallabsorberelemente können lösbar, beispielsweise magnetischen, am Rahmen 33 angebracht werden, wodurch der 9 shows a sound absorber tower 32 composed of several sound absorber elements. The sound absorber elements can be detachably attached to the frame 33, for example magnetic ones, whereby the
Schallabsorberturm 32 an unterschiedlich geforderte Akustikverhältnisse angepasst werden kann. Der Schallabsorberturm 32 kann beispielsweise nur temporär in Veranstaltungsräumen eingesetzt werden und bei Nichtgebrauch einfach Sound absorber tower 32 can be adapted to different acoustic conditions required. The sound absorber tower 32 can, for example, only be used temporarily in event rooms and simply when not in use
auseinandergebaut werden. Je nach Höhe des Rahmens und Anzahl der to be disassembled. Depending on the height of the frame and the number of
Schallabsorberelemente kann der Schallabsorptionsgrad variiert werden. Sound absorption elements can be varied in the degree of sound absorption.

Claims

Patentansprüche Claims
1. Schallabsorberelement mit einem einen Dämmstoff (14) einfassenden Spannrahmen (1 ), der von einem Spannbezug (2) umspannt ist, der einen die Vorderseite des Spannrahmens (1 ) abdeckenden Deckabschnitt (3) bildet und dessen Spannbezugenden (4) am Spannrahmen (1 ) befestigbar sind, dadurch gekennzeichnet, dass zwischen dem Dämmstoff (14) und dem Deckabschnitt (3) eine vom Deckabschnitt (3) überdeckte Dämpfungsmembran (16) vorgesehen ist. 1.Sound absorber element with a tensioning frame (1) which surrounds an insulating material (14) and is spanned by a tensioning cover (2) which forms a cover section (3) covering the front of the tensioning frame (1) and the tensioning cover ends (4) on the tensioning frame ( 1) can be fastened, characterized in that a damping membrane (16) covered by the cover section (3) is provided between the insulating material (14) and the cover section (3).
2. Schallabsorberelement nach Anspruch 1 , dadurch gekennzeichnet, dass die2. Sound absorber element according to claim 1, characterized in that the
Spannbezugenden (4) zur gleichmäßigen Spannung des Spannbezugs (2) Clamping cover ends (4) for even tensioning of the clamping cover (2)
Aufnahmelaschen (5) für Spannleisten (6, 7, 8, 9) ausbilden, die je in Form receiving tabs (5) for clamping bars (6, 7, 8, 9), each in
Spannbereiche (10,11 ,12,13) des Spannrahmens (1 ) einführbar und dort Clamping areas (10, 11, 12, 13) of the clamping frame (1) can be introduced and there
befestigbar sind. are attachable.
3. Schallabsorberelement nach Anspruch 2, dadurch gekennzeichnet, dass die3. Sound absorber element according to claim 2, characterized in that the
Spannleisten (6, 7, 8, 9) je in Spannbereiche (10,1 1 ,12,13) zwischen Dämmstoff (14) und Spannrahmen (1 ) einführbar und dort befestigbar sind. Clamping strips (6, 7, 8, 9) can each be inserted into clamping areas (10, 11, 12, 13) between the insulating material (14) and the clamping frame (1) and can be fastened there.
4. Schallabsorberelement nach Anspruch 2, dadurch gekennzeichnet, dass die Spannleisten (6,7) je in Spannbereiche (10,1 1 ) an wenigstens einer der 4. Sound absorber element according to claim 2, characterized in that the clamping strips (6,7) each in clamping areas (10,1 1) on at least one of the
Spannrahmenseiten (27) einführbar und dort befestigbar sind. Tenter frame sides (27) can be inserted and fastened there.
5. Schallabsorberelement nach Anspruch 4, dadurch gekennzeichnet, dass die Spannbereiche (10,11 ) von einem zur Spannrahmenseite hin offenen Profil aufgespannt werden, in dem Einschubfächer für Spannleisten (6,7) vorgesehen sind und der mit einem Deckel (29) verschließbar ist. 5. Sound absorber element according to claim 4, characterized in that the clamping areas (10, 11) are spanned by a profile open to the side of the clamping frame, in which compartments for clamping strips (6, 7) are provided and which can be closed with a cover (29) .
6. Schallabsorberelement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Spannbezug (2) die Dämpfungsmembran (16) am 6. Sound absorber element according to one of claims 1 to 5, characterized in that the tensioning cover (2) on the damping membrane (16)
Spannrahmen (1 ) niederspannt. Tension frame (1) tensioned down.
7. Schallabsorberelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Spannbezug (2) zu einer auf der Rückseite des 7. Sound absorber element according to one of claims 1 to 6, characterized in that the clamping cover (2) to one on the back of the
Spannrahmens (1 ) angeordneten Befestigungsaufnahme (18) für einen in den Spannrahmen (1 ) eingreifenden bolzenförmigen Permanentmagneten (20) durchbrochen ist, wobei der magnetische Kreis über den Permanentmagneten (20) und den Spannrahmen (1 ) geschlossen ist. Clamping frame (1) arranged fastening receptacle (18) for a bolt-shaped permanent magnet (20) engaging in the clamping frame (1) is perforated, the magnetic circuit being closed via the permanent magnet (20) and the clamping frame (1).
8. Schallabsorberelement nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass zur Befestigung des Spannrahmens (1 ) 8. Sound absorber element according to one of claims 1 to 7, characterized in that for fastening the clamping frame (1)
Befestigungsmittel (21 ) vorgesehen sind, die einen prismatischen Grundkörper (22) umfassen, der eine um die Prismenachse (25) umlaufende Umfangsnut (23) und eine zur Prismenachse (25) parallele exzentrische Drehachse (24) aufweist. Fastening means (21) are provided which comprise a prismatic base body (22) which has a circumferential groove (23) running around the prism axis (25) and an eccentric axis of rotation (24) parallel to the prism axis (25).
PCT/AT2020/060210 2019-06-03 2020-05-26 Sound absorber element comprising a tensioning frame surrounding an insulating material WO2020243760A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50501/2019 2019-06-03
ATA50501/2019A AT521790B1 (en) 2019-06-03 2019-06-03 Sound absorber element with a clamping frame enclosing an insulating material

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007033613A1 (en) 2007-07-17 2009-01-22 Erich Diel sound absorber
DE202012012556U1 (en) * 2012-09-11 2013-06-26 Acousticpearls Gmbh Textile acoustic panel in sandwich construction
EP2980329A2 (en) * 2014-07-30 2016-02-03 GiB Gesellschaft für innovative Bautechnologie mbH Wall and ceiling element, and wall and ceiling structure made of elements

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14290U1 (en) * 2013-12-02 2015-07-15 Trevision Gross Bild Technik Gmbh tenter
DE202017001471U1 (en) * 2017-03-10 2017-04-11 Michael Lehner Cloth stretching frame

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007033613A1 (en) 2007-07-17 2009-01-22 Erich Diel sound absorber
DE202012012556U1 (en) * 2012-09-11 2013-06-26 Acousticpearls Gmbh Textile acoustic panel in sandwich construction
EP2980329A2 (en) * 2014-07-30 2016-02-03 GiB Gesellschaft für innovative Bautechnologie mbH Wall and ceiling element, and wall and ceiling structure made of elements

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