EP0906612B1 - Schaumstoffelement zur schalldämmung von hohlräumen - Google Patents

Schaumstoffelement zur schalldämmung von hohlräumen Download PDF

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Publication number
EP0906612B1
EP0906612B1 EP97927125A EP97927125A EP0906612B1 EP 0906612 B1 EP0906612 B1 EP 0906612B1 EP 97927125 A EP97927125 A EP 97927125A EP 97927125 A EP97927125 A EP 97927125A EP 0906612 B1 EP0906612 B1 EP 0906612B1
Authority
EP
European Patent Office
Prior art keywords
foam material
material element
foam
cavity
layer
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.)
Expired - Lifetime
Application number
EP97927125A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0906612A1 (de
Inventor
Wolfgang Friedl
Ulrich Heitmann
Andreas Harms
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.)
Metzeler Schaum GmbH
Original Assignee
Metzeler Schaum 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 Metzeler Schaum GmbH filed Critical Metzeler Schaum GmbH
Publication of EP0906612A1 publication Critical patent/EP0906612A1/de
Application granted granted Critical
Publication of EP0906612B1 publication Critical patent/EP0906612B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G10K11/162—Selection of materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/231—Filled with gas other than air; or under vacuum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/233—Foamed or expanded material encased
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/24992—Density or compression of components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249986—Void-containing component contains also a solid fiber or solid particle

Definitions

  • the invention relates to a foam element for soundproofing Cavities, in particular of extruded profiles made of metal or Plastic that compresses in this way before being introduced into a cavity is sealed in an airtight film that it is through an opening a cavity can be inserted into the cavity, the Foam element after insertion into the cavity by opening the film with air in at least two walls of the Cavity form expands.
  • Such a foam element is made of US-A-5 529 824.
  • the invention is based on the object to provide foam element of the type mentioned that for damping in cavities, in particular of extruded profiles sound phenomena occurring from metal or plastic suitable is.
  • a foam element for sound insulation proposed by cavities with the features of claim 1.
  • the inventive design of the foam element as at least two-layer foam structure (Foam sandwich) with a layer of spring and at least one heavy layer arranged on the spring layer is a deadening of extruded profiles made of metal or plastic, in particular made of Alloy, possible.
  • the two heavy layers lie essentially in the foam element flat on the light metal profile.
  • the soft foam of the feather layer presses the at least one with a certain pressure Heavy layer on the walls of the cavity to be dampened.
  • the Pressurization of the heavy layer stirs through the spring layer from oversizing the foam element with respect of the cavity to be damped in the direction of expansion of the Foam element.
  • the at least one heavy layer of the invention Foam element is therefore in direct contact with the light metal extruded profile and follows every swinging movement of the extruded profile. These vibrations are caused by the Foam element, partly in the heavy layer and partly absorbed by the spring layer and in heat converted. Ideally, vibrational energy can also pass through antiphase swinging of the two light metal outer layers be destroyed.
  • FIG. 1 shows a schematic representation of a cross section through a Foam element according to the invention 10.
  • the foam element 10 comprises a spring layer 11 and two heavy layers 12 on opposite sides of the spring layer 11 are applied.
  • the Spring layer 11 consists in particular of flexible polyurethane foam
  • the heavy layers 12 consist in particular of polyurethane flake composite foam.
  • the foam element 10 according to the invention lies in that in the figure 1 shown state in compressed form and is in a sealed airtight film 13. By opening the film 13, for example by tearing or piercing, air can get inside penetrate the film 13 so that the three-layer foam structure of the foam element 10 according to the invention expands.
  • This The expanded state 10 ' is also more schematic in FIG. 2 Sectional representation shown. The expansion of the foam element 10 takes place in the expansion direction illustrated by the double arrow.
  • the expansion primarily takes place Soft foam existing spring layer 11, while the two on the Spring layer applied heavy layers 12 of flake composite foam expand only marginally.
  • the heavy layers 12 out Flake composite foam has a very dense structure, so that they are hardly compressible.
  • the soft foam has the spring layer 11 has an open cell structure that is highly can be compressed and compressed. This compressed Condition is obtained by welding into the airtight film 13, and only after opening the film 13 does the spring layer expand below Air supply in its original size and shape.
  • the density of the flake composite foam of the heavy layers 12 is approximately 100 to 700 kg / m 3 , preferably between 300 and 400 kg / m 3 .
  • the density of the soft foam of the spring layer 11 is approximately 10 to 80 kg / m 3 , preferably between 40 and 60 kg / m 3 .
  • the thickness of the heavy layers 12 is approximately 2 to 10 mm, preferably between 4 and 5 mm.
  • the thickness of the spring layer 11 is measured depending on the size of the cavity to be damped.
  • the thickness of the spring layer 11 is typically approximately 5 to 15 mm in the compressed state (FIG. 1) and approximately 30 to 70 mm in the expanded state (FIG. 2).
  • the airtight film 13 is preferably a diffusion-tight polyethylene sandwich film, its thickness is about 50 to 300 microns, preferably between 150 and 200 ⁇ m.
  • foam strips for the spring layer and the heavy layers glued to each other and in an airtight, in particular bag-shaped film inserted. Then that is in the airtight Foam element located in the film by compressing compressed outside. The inside of the film is evacuated and the film is welded shut, causing the compressed state of the foam element is maintained.
  • Figure 3 shows a schematic perspective view of an extruded profile 20 with a cavity 22.
  • a narrow side 24 of the extruded profile 20 are 22 leading openings in the cavity 21 provided.
  • Foam elements 10 inserted for soundproofing the cavity 22.
  • the foam elements 10 according to the invention have in their compressed state over an elongated strip shape.
  • the Foam elements 10 are drawn in this way in the sense of Arrow inserted through the openings 21 in the cavity 22 that the Heavy layers 12 parallel to the two delimiting the cavity 22 Long sides 23 of the extruded profile 20 come to rest.
  • the foam elements 10 are narrower than the thickness d of the extruded profile 20 and as the clear width of the openings 21 so that they are easily pushed through the openings 21 can be.
  • the airtight film 13 is opened. This can be done by piercing or tearing open.
  • problem-free opening the slide 13 allowed. This can be, for example, an in act the shrink-wrapped thread or the like.
  • the spring layer 11 of the foam element 10 expands in such a way that the heavy layers 12 of the foam element 10 against the side walls 23 of the extruded profile delimiting the cavity 22 20 are pressed.
  • the spring layer 11 is accordingly dimensioned that their thickness in the expanded state is at least that Thickness d of the cavity 22 of the extruded profile 20 corresponds.
  • the heavy layers 12 of flake composite foam are ready installed foam element 10 accordingly essentially flat on the side walls 23 of the light metal extruded profile 20, so that vibrational movements of the extruded profile on the Heavy layers 12 transferred and partially from these to the spring layer 11 be forwarded. Both in the heavy layer 12 and the vibrations are also absorbed in the spring layer 11 and converted into heat. According to the invention, a deadening, i.e. damping that occurring in an extruded profile Structure-borne noise occur.
  • the foam element according to the invention the flow resistance in the cavity 22 of the extruded profile increased, causing the collapse in coincidence described above the sound insulation is significantly reduced. Furthermore becomes the thermal by increasing the flow resistance Convection rolls prevented.
  • the good thermal insulation properties of the soft foam of the spring layer 11 thermal conductivity at 20 ° C: ⁇ ⁇ 0.040 W / mK) the heat exchange of considerably reduced from the outside in and vice versa.
  • the embodiment described above and shown in the drawing of a foam element according to the invention relates a foam structure with a substantially rectangular Cross-section.
  • the use of such a rectangular cross-section is an ideal case in practice because the foam elements of the given the cavity geometry of the extruded profiles used Need to become. For this reason, foam elements with a substantially trapezoidal cross section is more common in practice to be found.
  • Foam elements are also triangular Cross section conceivable.
  • the production and use of the invention Foam elements with such cross sections corresponds the above based on a rectangular cross-section described production and application. It is not necessarily so necessary that two heavy layers on opposite Sides of the spring layer can be arranged. Rather, that's just that Use of a heavy layer, for example a triangular one Cross section conceivable. It is also possible to use the heavy layers on two adjacent sides of a spring layer triangular or trapezoidal cross-section.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Building Environments (AREA)
  • Glass Compositions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP97927125A 1996-06-18 1997-06-04 Schaumstoffelement zur schalldämmung von hohlräumen Expired - Lifetime EP0906612B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19624314A DE19624314C1 (de) 1996-06-18 1996-06-18 Schaumstoffelement zur Schalldämmung von Hohlräumen
DE19624314 1996-06-18
PCT/EP1997/002886 WO1997049082A1 (de) 1996-06-18 1997-06-04 Schaumstoffelement zur schalldämmung von hohlräumen

Publications (2)

Publication Number Publication Date
EP0906612A1 EP0906612A1 (de) 1999-04-07
EP0906612B1 true EP0906612B1 (de) 1999-09-01

Family

ID=7797279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97927125A Expired - Lifetime EP0906612B1 (de) 1996-06-18 1997-06-04 Schaumstoffelement zur schalldämmung von hohlräumen

Country Status (15)

Country Link
US (1) US5993932A (ru)
EP (1) EP0906612B1 (ru)
JP (1) JP2000512774A (ru)
KR (1) KR100393754B1 (ru)
AT (1) ATE184125T1 (ru)
AU (1) AU711216B2 (ru)
CA (1) CA2257600C (ru)
CZ (1) CZ289645B6 (ru)
DE (2) DE19624314C1 (ru)
ES (1) ES2138867T3 (ru)
GR (1) GR3032000T3 (ru)
ID (1) ID17171A (ru)
PL (1) PL330716A1 (ru)
RU (1) RU2155689C1 (ru)
WO (1) WO1997049082A1 (ru)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741766A1 (de) * 1997-09-22 1999-03-25 Bayerische Motoren Werke Ag Geschäumte Struktur
JP3488865B2 (ja) * 2000-10-19 2004-01-19 森六株式会社 グローブボックスの衝撃緩和用発泡成形品
US6459211B1 (en) * 2001-08-28 2002-10-01 Wintek Corporation Damping/muffling structure for electroluminescent cell
US20030082357A1 (en) * 2001-09-05 2003-05-01 Cem Gokay Multi-layer core for vacuum insulation panel and insulated container including vacuum insulation panel
US6696795B1 (en) * 2003-01-10 2004-02-24 Wintek Corporation Damping and muffling structure for EL device
FR2866852B1 (fr) * 2004-02-26 2006-05-26 Peugeot Citroen Automobiles Sa Dispositif et procede d'insonorisation et element creux obture par ce dispositif
US20060003148A1 (en) * 2004-06-30 2006-01-05 Zwynenburg James L Interlocking polymeric foam floor underlayment and process for making
WO2007078296A1 (en) * 2006-01-03 2007-07-12 Gary Richard Wilkes Interlocking polymeric foam floor underlayment
DE102007021806B3 (de) * 2007-05-07 2008-04-30 Hanno-Werk Gmbh & Co. Kg Verfahren zum Einbringen eines Schaumstoffkörpers in einen Hohlraum
DE102007051276A1 (de) * 2007-10-26 2009-04-30 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Füllen eines Hohlraums in einer Rohkarosserie eines Kraftfahrzeugs mit einem akustischen dämmenden Werkstoff
PL2554091T3 (pl) * 2011-08-01 2017-11-30 Faist Chem Tec Gmbh Tłumiąca dźwięk płyta warstwowa z perforacją
US8770340B2 (en) * 2011-11-16 2014-07-08 Huntair, Inc. Sound-absorptive panel for an air handling system
DE102011122568A1 (de) * 2011-12-23 2013-06-27 Volkswagen Aktiengesellschaft Verfahren zum Einbringen eines Füllstoffs in einen Hohlraum sowie eine für den Füllstoff bestimmte Hülle
CN104723980B (zh) * 2013-12-20 2017-04-19 上海新安汽车隔音毡有限公司 一种汽车钣金空腔内防水隔音毡及其制作方法
CN105691326B (zh) * 2014-11-24 2017-09-05 上海新安汽车隔音毡有限公司 一种汽车车身钣金内吸音隔音减震防水零件及其制备方法
CN105003046A (zh) * 2015-07-30 2015-10-28 常州南夏墅建设有限公司 轻质隔音墙面砖
CN112477894A (zh) * 2020-12-09 2021-03-12 中车青岛四方机车车辆股份有限公司 车体铝合金型材降噪结构、降噪设计方法及车体

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506004A1 (de) * 1985-02-21 1986-08-21 Irbit Research + Consulting Ag, Freiburg/Fribourg Aus offenzelligem schaumstoff bestehender fuellkoerper
DE3637334A1 (de) * 1986-11-03 1988-05-11 Metzeler Schaum Gmbh Schallschutzelement und verfahren zur herstellung eines schallschutzelementes
DE8707140U1 (de) * 1987-05-18 1987-09-10 Pelzer, Helmut, 58313 Herdecke Füllkörper zur akustischen Abdichtung rohrförmiger Körper
JP2519493B2 (ja) * 1987-12-21 1996-07-31 トヨタ自動車株式会社 熱硬化型発泡シ―ル材
DE3909017C1 (ru) * 1989-03-18 1990-04-12 Metzeler Schaum Gmbh, 8940 Memmingen, De
DE4139858A1 (de) * 1991-12-03 1993-06-09 Stankiewicz Gmbh, 3101 Adelheidsdorf, De Fuellkoerper als formteil zur abdichtung schwer zugaenglicher hohlraeume
FR2690379B1 (fr) * 1992-04-22 1995-05-24 Lorraine Laminage Tôle sandwich.
US5504282A (en) * 1994-08-24 1996-04-02 Foamex L.P. Sound transmission and absorption control media

Also Published As

Publication number Publication date
AU711216B2 (en) 1999-10-07
AU3172497A (en) 1998-01-07
US5993932A (en) 1999-11-30
JP2000512774A (ja) 2000-09-26
PL330716A1 (en) 1999-05-24
KR100393754B1 (ko) 2003-12-01
RU2155689C1 (ru) 2000-09-10
EP0906612A1 (de) 1999-04-07
CA2257600A1 (en) 1997-12-24
ID17171A (id) 1997-12-04
WO1997049082A1 (de) 1997-12-24
GR3032000T3 (en) 2000-03-31
KR20000016236A (ko) 2000-03-25
CA2257600C (en) 2002-03-05
CZ419998A3 (cs) 1999-06-16
DE19624314C1 (de) 1998-01-08
ES2138867T3 (es) 2000-01-16
ATE184125T1 (de) 1999-09-15
CZ289645B6 (cs) 2002-03-13
DE59700401D1 (de) 1999-10-07

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