EP2916316A1 - Corps d'absorption acoustique, dispositif, dispositif d'absorption acoustique, procédé d'utilisation et procédé d'élimination d'un corps d'absorption acoustique - Google Patents

Corps d'absorption acoustique, dispositif, dispositif d'absorption acoustique, procédé d'utilisation et procédé d'élimination d'un corps d'absorption acoustique Download PDF

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Publication number
EP2916316A1
EP2916316A1 EP14157859.1A EP14157859A EP2916316A1 EP 2916316 A1 EP2916316 A1 EP 2916316A1 EP 14157859 A EP14157859 A EP 14157859A EP 2916316 A1 EP2916316 A1 EP 2916316A1
Authority
EP
European Patent Office
Prior art keywords
sound absorption
absorption body
hooks
substructure
sound
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.)
Withdrawn
Application number
EP14157859.1A
Other languages
German (de)
English (en)
Inventor
Hans-Joachim Milz
Walter Baumann
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.)
G and H Schallschutz GmbH
Original Assignee
G and H Schallschutz GmbH
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 G and H Schallschutz GmbH filed Critical G and H Schallschutz GmbH
Priority to EP14157859.1A priority Critical patent/EP2916316A1/fr
Publication of EP2916316A1 publication Critical patent/EP2916316A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • 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
    • 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
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • E04B2001/8419—Acoustical cones or the like, e.g. for anechoic chambers

Definitions

  • the invention relates to a sound absorption body according to the preamble of claim 1, a device according to the preamble of claim 13, a method for inserting a sound absorption body according to claim 16 and a method for removing an inserted sound absorption body according to claim 17 ,
  • sound absorption bodies of sound-absorbing materials which usually have an articulated surface structure.
  • sound absorption body with a cuboid shaft and a wedge-shaped upper part or a pyramidal upper part are suitable.
  • Wedge-shaped sound absorption bodies may be formed either symmetrically, wherein the two converging surfaces have the same angle of inclination with the base surface ( DE-PS 809 599 ) or asymmetrical, wherein only one wedge surface of the sound absorption body is inclined, while the other forms a right angle with the base surface ( DE-PS 25 02 846 ).
  • a sound absorbing body is fixed to the metal substructure by piercing the perforations of the metal substructures and the sound absorbing body having a plurality of hook pins parallel to the space surface.
  • sound absorbing element can be releasably connected by means of adhesive strips with a carrier; the adhesive strip may comprise a Velcro connection.
  • the adhesive tape may be covered and the cover removed after insertion so that the hook and loop fastener will contact a hook and loop strap of the wearer.
  • the adhesive strip may be disposed on a sleeve which surrounds the core of the absorbent member and which is destroyed to remove the core. Subsequently, the shell is released from the carrier.
  • this type of connection the sound absorbing element used can not be removed in the state in which it was used and therefore would not be suitable for immediate reuse.
  • the invention has for its object to provide a sound absorption body and methods for inserting or removing inserted sound absorption bodies available that allow a flexible insertion or removal of sound absorption bodies, wherein the sound absorption body are suitable for use in public areas.
  • the object is achieved by the sound absorption body according to claim 1, the device according to claim 13, the sound absorption device according to claim 15, the method for inserting a sound absorption body according to claim 16 and the method for removing an inserted sound absorption body according to claim 17.
  • Preferred embodiments are in the Subclaims disclosed.
  • a sound absorbing body is characterized by hooks attached thereto, the hooks projecting from a portion of a surface of the sound absorbing body, and the hooks are connected to the surface such that at a pressure at least to the region, the hooks move with the surface and the hooks extend Can move out perforations of a substructure.
  • the hooks are arranged in a line perpendicular to an insertion direction or a removal direction of the sound absorption body in or out of the substructure.
  • the thickness of the sound absorption body is reduced there, so that a distance is formed between the surface of the sound absorption body and the substructure.
  • the reduction in the thickness of the sound absorption body requires that the hooks move with the surface and the hooks can move out of the perforations due to the resulting distance between the surface of the sound absorption body and the substructure.
  • the hooks may be attached to the sound absorbing body by means of needling.
  • a needling can be a direct attachment of hooks on the sound absorbing body, for example by means of needles or staples.
  • the sound absorption body may comprise a band to which the hooks are attached by means of needling or loops, the band being sewn, riveted and / or glued to the sound absorption body. It can also be provided that hooks are attached to a sound absorption body both directly to the sound absorption body by means of needling and on a belt.
  • the sound absorption body may comprise an envelope, which consists for example of non-combustible fibers, preferably of glass fiber or glass filament fabric.
  • a cladding can protect the sound absorbing body from soiling, which could otherwise penetrate, for example, into the pores of the material of the sound absorbing body. It is possible to replace or clean the envelope of a sound absorption body.
  • the cladding preferably does not affect the sound absorbing properties of the sound absorbing body.
  • the hooks may be attached to the enclosure.
  • hooks can be attached only to those surfaces of the sound absorption body, which come into contact with the substructure or are adjacent to it, so that hooks can engage in the perforations.
  • the hooks may be attached to the enclosure by means of needling or loops, the loops preferably being nonflammable.
  • a needling can be a direct attachment of hooks on the envelope of the sound absorbing body, for example by means of needles or staples.
  • the loops can be subsequently sewn to the wrapper or woven into it. For attaching the hooks can be threaded into the loops.
  • the sound absorbing body may comprise a band on the enclosure to which the hooks are attached, the band preferably being non-combustible.
  • the hooks can be detachably connected to the band.
  • the band can be replaced in case of wear, so that not the entire enclosure and / or the sound absorption body must be replaced. It can be provided that a sound absorption body comprises more than one band, so that hooks can be arranged at different positions of the sound absorption body.
  • the band may be considered as a mechanical reinforcement of the enclosure in the area in which the hooks are arranged.
  • the hooks may be attached to the band by means of loops, the loops preferably being non-combustible.
  • the loops can be subsequently sewn to the band or produced together with this.
  • the loops allow, for example, a hooking and unthreading of the hook, so that depending on the planned arrangement of the sound absorption body hooks are attached only to those surfaces of the sound absorption body, which come into contact with the substructure or adjacent to it, so that hooks in the perforations can intervene.
  • On one surface of the sound absorption body, which is adjacent to a surface of another sound absorption body preferably no hooks are arranged.
  • the tape may be sewn, riveted and / or glued to the envelope of the sound absorbing body.
  • already existing sound absorption body can be changed by attaching one or more bands, so that they can be used according to the invention.
  • a certain mobility of the hooks with respect to the sound absorbing body may be possible, so that the engagement in the perforations as well as slipping out of the hooks from the perforations using a mounting aid in the form of a plate with a thickened or a bent end to Removing the sound absorption body can be favored.
  • the sound absorption body may comprise a cuboid shaft with at least one wedge-shaped upper part or at least one pyramidal upper part.
  • a room wall covered with such sound absorption bodies has an articulated area structure facing the space, whereby a good transition of the airborne sound into the sound absorption body takes place, since no preferred plane for sound reflections is present.
  • the sound absorption body may comprise an open-pore material, preferably fiber materials, such as mineral fiber.
  • the bulk density is well defined and very tight in tolerance within a range of ⁇ 0.5 kg / m 3 .
  • the shape of the sound absorption body depends on the lower limit frequency to be achieved. This is defined by the fact that for all frequencies that are greater than or equal to the reflection factor must be less than or equal to 0.1. Since this consideration takes place in the frequency range 25 Hz to 200 Hz, the wavelengths are scaled correspondingly different lengths, so that the shape of the wedges also depends on this cutoff frequency. As a rule, the wedge depth can be estimated with a quarter wavelength of the cutoff frequency.
  • the flow resistance of the fiber material used is tuned to the field impedance of the acoustic field (408 Ns / m 3 ) for the standard case.
  • the surface of the sound absorption body may be impregnated. This can prevent moisture, vapors, fats or other impurities from entering the sound absorption body.
  • the impregnation of the surface preferably does not impair the sound-absorbing properties of the sound absorption body.
  • the envelope of the sound absorption body is impregnated.
  • the sound absorption body can be temperature resistant, for example in a temperature range of -20 ° C to +120 ° C.
  • the temperature resistance is advantageous so that even at different temperatures, a highly absorbent or low-sound-absorbing room retains its property and it can not come to volume changes of the sound absorption body that behind the sound absorption bodies lying space surfaces are accessible to the sound when gaps form between the sound absorption bodies.
  • the sound absorbing body and / or the hooks may not be combustible.
  • a classification as non-flammable according to DIN 4102 or EN 13501 is useful and partly necessary, especially when used in test benches of the automotive industry, in climatic chambers as well as in TV and recording studios.
  • a device may comprise a sound absorbing body as described above or below and an auxiliary mounting device, wherein the auxiliary mounting device is in the form of a plate having a thickened end or a bent end.
  • the thickened or the bent end can be introduced to remove an inserted sound absorption body between an inserted sound absorption body and the substructure, wherein the assembly aid should be at least as far inserted between the sound absorption body and substructure that it exerts an effect on the hook.
  • the engaged with the Perforating hooks are moved by the compression of the sound absorbing body by means of the mounting auxiliary device with the surface of the sound absorbing body and slip out of the perforations.
  • the mounting auxiliary device introduced between the sound absorption body and the substructure can also act on the substructure and cause the substructure to be moved away from the sound absorption body since pressure is locally exerted on the substructure by the auxiliary mounting device.
  • the width of the mounting auxiliary device may correspond to the width of a sound absorption body or the width along which the hooks are attached to the sound absorption body, so that the thickened end or the bent end can act on all hooks of the sound absorption body and by this action the engaged hooks slip out of the perforations.
  • the non-thickened end of the plate also referred to as the mounting side, may be used together to insert a sound absorbing body, i. at the same time, be introduced into the substructure with the sound absorption body.
  • a sound absorbing body i. at the same time
  • the non-thickened or non-bent end of the plate covers the hook of the sound absorption body, so that it comes to the engagement of the hook of the sound absorption body to no engagement of the hooks in the perforations of the substructure.
  • an edge of the mounting side is located in the curvature of the hook.
  • the non-thickened or non-bent end of the plate can be introduced before the sound absorption body in the substructure and then the sound absorption body.
  • the width of the non-thickened or non-bent end of the plate also corresponds to the width of a sound absorption body or the width along which the hooks are attached to the sound absorption body, so that there is a mechanical delimitation between hooks and perforations in mounting aid incorporated into the substructure , so that there is a mechanical delimitation between hooks and perforations in mounting aid incorporated into the substructure ,
  • the plate covers the hooks of the sound absorption body, and these can not interfere with the perforations of the substructure.
  • the thickness of the plate is preferably designed so that the plate is sturdy enough for use as a mounting aid, but also thin enough to be incorporated into the substructure together with the sound absorbing body. To facilitate engagement of the hooks in the perforations, the mounting aid becomes pulled out after positioning the sound absorption body between the sound absorption body and the substructure
  • mounting auxiliary devices are used for the insertion or for the removal of a sound absorption body, in which one for insertion, for example, a mounting aid, and the other for the removal, for example, a disassembly aid, are suitable.
  • a diameter of the thickened end or the bent end may be greater than a height of the hooks. If the diameter of the thickened or the bent end is greater than the height of the hooks, so when inserting the thickened or the bent end between an inserted sound absorption body and substructure, a pressure on the area of the surface of the sound absorption body, in which the hooks are mounted , which results in slipping out of the hooks from the perforations, since they are pulled out by the dimensions of the thickened or the bent end completely out of the perforations of the substructure. A local pressure is also exerted on the substructure by the auxiliary assembly device, so that the substructure is moved away from the sound absorption body. In addition, clamped at such a diameter, the thickened or the bent end is not in the openings of the hook.
  • a sound absorption device comprises at least one substructure with perforations and at least one sound absorption body attached to the substructure as described above or below, the hooks of the sound absorption body engaging in the perforations of the substructure.
  • the perforations of the substructure may have round, oval, rectangular, hexagonal, octagonal, star-shaped or keyhole-like cross sections.
  • the perforations are arranged in a regular pattern, wherein the perforations can have a pitch p1 to each other.
  • the hooks attached to the sound absorption body may have a pitch p2 to each other which is a positive integer multiple of the pitch p1, so that by this relative arrangement of hooks and perforations to each other, the engagement of the hooks in the perforations is possible.
  • a method for inserting a sound absorbing body, as described above or below, in a substructure comprising perforations comprises the following steps: introducing a mounting side of a mounting aid in the substructure and then introducing the sound absorption body in the substructure or introducing the sound absorption body in the Substructure together with the mounting side of the assembly auxiliary device; then positioning the sound absorbing body; after that Removing the assembly aid from the substructure, whereby an engagement of the hooks takes place in the perforations of the substructure.
  • the auxiliary assembly device If the mounting side of the auxiliary assembly device is introduced into the substructure in front of the sound absorption body, the perforations of the substructure are covered by the auxiliary assembly device.
  • the auxiliary installation device may be arranged relative to the sound absorption body such that during insertion the hooks of the sound absorption body are covered by the mounting side of the installation auxiliary device, whereby the engagement of the hooks in the perforations prevented becomes.
  • the mounting side can be a plate.
  • the hooks are protected by the mounting side of the assembly auxiliary device from mechanical impact of being pushed along the substructure.
  • Particularly advantageous is the use of the assembly auxiliary device, if a positioning of the sound absorption body to take place, for example, by a lateral displacement. When the final position of the sound absorption body is reached, the assembly aid can be removed so that the hooks engage in the perforations of the substructure.
  • the assembly aid can be arranged relative to the sound absorption body so that an edge of the mounting side is in the curvature of the hook.
  • the hooks are still pushed by the mounting aid to a desired end position.
  • the hooks can then fully engage in their end position in perforations.
  • a method of removing an inserted sound absorbing body, as described above or below, from a substructure comprising perforations comprises the steps of placing a disassembly side of an assembly aid between the attached sound absorbing body and the substructure, whereby the hooks slip out of the perforations of the substructure ; then removing the sound absorbing body or removing the sound absorbing body together with the mounting auxiliary device.
  • the disassembly side of the mounting auxiliary device may be a thickened end or a bent end of a plate.
  • FIG. 1 shows a schematic view of a known from the prior art mounting method for sound absorption body 1 to a substructure 2, the perforations 3 has.
  • the substructure 2 is attached to a wall of a room, not shown, which is to be designed with low reflection.
  • the parts of the perforated substructure 2, on and between which the sound absorption body 1 are arranged, are aligned horizontally. It is also possible to arrange the substructures and, correspondingly, the sound absorption bodies on a ceiling of a room. In addition, an arrangement of sloping walls and / or ceilings of rooms is possible.
  • two hook pins 4 are here passed through perforations 3 of the substructure 2 and pierce the sound absorption body 1 from top to bottom and parallel to the wall, not shown.
  • a different number of hook pins 4 can also be used for fastening a sound absorption body 1 to a substructure 2.
  • the introduction of the hook pins 4, the piercing of the perforations 3 and the sound absorption body 1 is generally possible only laterally from the free side.
  • FIG. 2 shows a schematic view of a sound absorption body used according to the invention 5.
  • the sound absorption body 5 has circumferentially on a band 6, which is sewn in the embodiment shown at the tape edges on the sound absorption body 5 by means of seams 7 and also attached to the belt center line with rivets 8.
  • hooks 10 are attached by means of loops 9 on the belt.
  • the hooks 10 are arranged such that they are opened in the inserted state of the sound absorption body 5 on the side facing away from the wall not shown and hooked into perforations 3 of the substructure 2.
  • the inserted hooks 10 ensure a secure hold of the sound absorption body 5 on the substructure 2 and also for the possibility of the hooks 10 from the front, i. aushaken from the room side by using a disassembly side of a mounting aid.
  • the hooks 10 each have open ends, wherein in the illustration two hooks are connected by means of a transverse connection.
  • the distance between the open ends is designed so that the hooks 10 can hook into the perforations 3. This hooking is therefore possible not only in a specific position of the sound absorption body 5 relative to the substructure 2, but in different positions, so that by means of several sound absorption bodies 5, a room wall or ceiling can be completely covered completely.
  • the perforations 3 of the substructure 2 are designed with a rectangular cross-section, wherein the size of the perforations 3 is designed in each case such that one or more hooks 10 can engage and, in addition, a hold of the sound absorption body 5 is possible without it being extended too far the perforations 3 is displaced.
  • FIG. 3a shows a schematic view of a sound absorbing body 5 during insertion into a substructure 2 using a first embodiment of a mounting auxiliary device 11, wherein the mounting auxiliary device comprises a mounting side.
  • the auxiliary assembly device 11 is introduced together with the sound absorption body 5 or in front of the sound absorption body 5 in the substructure 2, so that it comes to rest between the substructure 2 and the sound absorption body 5, whereby a hooking of the hooks is prevented in the perforations 3.
  • the thickness of the mounting auxiliary device 11 causes a compression of the sound absorption body 5 and thus also the area of the surface of the sound absorption body 5, in which the hooks 10 are mounted.
  • an introduction of the sound absorbing body 5 between the substructures 2 is possible, and it can be moved for positioning and aligned, without causing the hooks 10 to hook, since the Assembly aid 11, the perforations 3 covers.
  • the auxiliary assembly device 11 can be pulled out between the substructure 2 and the sound absorption body 5.
  • the compressed sound absorption body 5 expands, with the hooks 10 move with the surface, so that the hooks 10 can hook into the perforations 3 of the substructure 2.
  • FIG. 3b shows a schematic view of a sound absorbing body 5 during insertion into a substructure 2 using a second embodiment of a mounting auxiliary 12,13, wherein the mounting auxiliary device 12, 13 comprises a mounting side 12 and a disassembly side 13.
  • the mounting side 12 is introduced together with the sound absorption body 5 or in front of the sound absorption body 5 in the substructure 2, so that it comes to rest between the substructure 2 and the sound absorption body 5, whereby hooking the hooks is prevented in the perforations 3.
  • the further handling is carried out as in the first embodiment of the assembly auxiliary device as in the FIG. 3a described.
  • FIG. 4 shows a schematic view of the use of the disassembly side 13 of the second embodiment of the mounting auxiliary device 12, 13, wherein the disassembly side 13 is an auxiliary device for removing a sound absorption body 5 from a substructure 2.
  • the disassembly side 13 can be used, which has a bent end 13. The diameter of the bent end 13 is in this case greater than the height of the hook 10.
  • the mounting auxiliary device 12, 13 is pushed with the bent end 13, ie the disassembly side 13, forward between the substructure 2 and the sound absorption body 5.
  • the sound absorption body 5 is thereby compressed and the hooks 10 move with the surface, whereby the hooks 10 slip out of the perforations 3 of the substructure 2.
  • a sound absorption body 5 dissolved in this way can then be removed alone, with the auxiliary assembly device 12, 13 still being introduced into the substructure 2, or pulled out of the substructure 2 together with the auxiliary assembly device 12, 13.
  • FIG. 5 shows the second embodiment of the mounting auxiliary device 12, 13 with a mounting side 12, which is designed as a plate 12, and a disassembly side 13, which is designed as a bent end 13 of the plate 12.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Building Environments (AREA)
EP14157859.1A 2014-03-05 2014-03-05 Corps d'absorption acoustique, dispositif, dispositif d'absorption acoustique, procédé d'utilisation et procédé d'élimination d'un corps d'absorption acoustique Withdrawn EP2916316A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14157859.1A EP2916316A1 (fr) 2014-03-05 2014-03-05 Corps d'absorption acoustique, dispositif, dispositif d'absorption acoustique, procédé d'utilisation et procédé d'élimination d'un corps d'absorption acoustique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14157859.1A EP2916316A1 (fr) 2014-03-05 2014-03-05 Corps d'absorption acoustique, dispositif, dispositif d'absorption acoustique, procédé d'utilisation et procédé d'élimination d'un corps d'absorption acoustique

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EP2916316A1 true EP2916316A1 (fr) 2015-09-09

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EP14157859.1A Withdrawn EP2916316A1 (fr) 2014-03-05 2014-03-05 Corps d'absorption acoustique, dispositif, dispositif d'absorption acoustique, procédé d'utilisation et procédé d'élimination d'un corps d'absorption acoustique

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3354819A1 (fr) 2017-01-27 2018-08-01 Rvt Group Limited Rideau acoustique
EP3379006A1 (fr) 2017-03-24 2018-09-26 Rvt Group Limited Barrière acoustique ignifuge

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE809599C (de) 1938-07-10 1951-08-23 Gerhard Buchmann Schallschluckanordnung hoher Wirksamkeit
DE2502846A1 (de) 1975-01-24 1976-07-29 Gruenzweig Hartmann Glasfaser Absorber zur daempfung von schall- und elektromagnetischen wellen und verfahren zur herstellung
WO1995032346A1 (fr) * 1994-05-19 1995-11-30 Polar-Rakennus Oy Assemblage de toles de parement fonde sur un systeme de treillis, et procede d'installation dudit assemblage
EP1111289A2 (fr) * 1999-12-24 2001-06-27 Deutsche Rockwool Mineralwoll-GmbH Isolation thermique et/ou acoustique pour une surface plane et méthode pour la fixation des panneaux isolants ou des sections isolantes sur une surface plane
DE20119315U1 (de) * 2000-11-25 2002-02-14 Bohle Isoliertechnik Gmbh Dämmkissen zur Schall- und/oder Wärmedämmung
DE102004025350A1 (de) 2004-05-19 2005-12-08 Erich Klaus Vorrichtung zur Absorption von Schall
EP2520732A1 (fr) * 2011-05-06 2012-11-07 Newmat Outil d'aide au montage et démontage de nappes de fausses parois tendues
US20120321837A1 (en) * 2011-06-14 2012-12-20 Empire Technology Development Llc Hook to hook releasable fastener
US20130161126A1 (en) * 2010-09-01 2013-06-27 Echo Barrier Limited Sound Absorbent Barrier

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE809599C (de) 1938-07-10 1951-08-23 Gerhard Buchmann Schallschluckanordnung hoher Wirksamkeit
DE2502846A1 (de) 1975-01-24 1976-07-29 Gruenzweig Hartmann Glasfaser Absorber zur daempfung von schall- und elektromagnetischen wellen und verfahren zur herstellung
WO1995032346A1 (fr) * 1994-05-19 1995-11-30 Polar-Rakennus Oy Assemblage de toles de parement fonde sur un systeme de treillis, et procede d'installation dudit assemblage
EP1111289A2 (fr) * 1999-12-24 2001-06-27 Deutsche Rockwool Mineralwoll-GmbH Isolation thermique et/ou acoustique pour une surface plane et méthode pour la fixation des panneaux isolants ou des sections isolantes sur une surface plane
DE20119315U1 (de) * 2000-11-25 2002-02-14 Bohle Isoliertechnik Gmbh Dämmkissen zur Schall- und/oder Wärmedämmung
DE102004025350A1 (de) 2004-05-19 2005-12-08 Erich Klaus Vorrichtung zur Absorption von Schall
US20130161126A1 (en) * 2010-09-01 2013-06-27 Echo Barrier Limited Sound Absorbent Barrier
EP2520732A1 (fr) * 2011-05-06 2012-11-07 Newmat Outil d'aide au montage et démontage de nappes de fausses parois tendues
US20120321837A1 (en) * 2011-06-14 2012-12-20 Empire Technology Development Llc Hook to hook releasable fastener

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3354819A1 (fr) 2017-01-27 2018-08-01 Rvt Group Limited Rideau acoustique
WO2018138248A1 (fr) 2017-01-27 2018-08-02 RVT Group Limited Rideau acoustique
EP3379006A1 (fr) 2017-03-24 2018-09-26 Rvt Group Limited Barrière acoustique ignifuge
WO2018172455A1 (fr) 2017-03-24 2018-09-27 RVT Group Limited Barrière acoustique anti-feu

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