Nothing Special   »   [go: up one dir, main page]

EP2159786A1 - Soundproofing assembly with a thin film for an automobile vehicle, and associated automobile vehicle - Google Patents

Soundproofing assembly with a thin film for an automobile vehicle, and associated automobile vehicle Download PDF

Info

Publication number
EP2159786A1
EP2159786A1 EP09168240A EP09168240A EP2159786A1 EP 2159786 A1 EP2159786 A1 EP 2159786A1 EP 09168240 A EP09168240 A EP 09168240A EP 09168240 A EP09168240 A EP 09168240A EP 2159786 A1 EP2159786 A1 EP 2159786A1
Authority
EP
European Patent Office
Prior art keywords
layer
porous
assembly
resistance
felt
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.)
Granted
Application number
EP09168240A
Other languages
German (de)
French (fr)
Other versions
EP2159786B1 (en
Inventor
Guillaume Deshayes
Arnaud Duval
Jean-Francois Rondeau
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.)
Adler Pelzer France Grand Est SAS
Original Assignee
Faurecia Automotive Industrie SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40592098&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2159786(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Faurecia Automotive Industrie SAS filed Critical Faurecia Automotive Industrie SAS
Priority to PL09168240T priority Critical patent/PL2159786T3/en
Publication of EP2159786A1 publication Critical patent/EP2159786A1/en
Application granted granted Critical
Publication of EP2159786B1 publication Critical patent/EP2159786B1/en
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches

Definitions

  • Such an assembly is intended to solve the acoustic problems that arise in a substantially enclosed space, such as the passenger compartment of a motor vehicle (carpet, roof, door panel, etc.), in the vicinity of noise sources such as a engine (apron etc), the contact of tires with a road (wheel well, etc.), etc.
  • the acoustic waves generated by the aforementioned noise sources are "buffered" by materials in the form of single or double sheets (sandwich) or by a porosity and elasticity effect. a mass-spring system, in particular viscoelastic foam.
  • a soundproofing assembly provides "insulation" when it prevents the entry of medium and high frequency acoustic waves into the soundproof space, essentially by reflection of the waves towards the noise sources or the outside of the soundproofed space.
  • a soundproofing package operates by "sound absorption" (in the medium and high frequency range) when the energy of the acoustic waves dissipates in an absorbent material.
  • EP-A-1,428,656 a low mass soundproofing assembly having a foam spring layer, an intermediate thermoplastic polymer thin film, and a porous felt layer on which a decorative layer is disposed.
  • Such a system has the advantage of being lightweight in nature, and provides a good sound absorption, whose properties can be adjusted by changing the thickness of the porous layer.
  • the thin film is placed between the porous layer and the foam layer to prevent saturation of the porous layer by the foam during foaming.
  • the foam layer is formed without penetrating the porous layer.
  • this thin film has no acoustic function and is almost acoustically transparent.
  • Such a set does not give complete satisfaction. Indeed, if it has adequate lightness and proper absorption, the sound insulation of such a set is quite low, which affects the overall soundproofing properties of the whole. To improve the insulation of the aforementioned assembly, it would be necessary to compress the porous layer of felt, which would greatly degrade the absorption.
  • An object of the invention is therefore to obtain a low mass soundproofing assembly, wherein the acoustic insulation is improved, without degrading the absorption.
  • the invention relates to an assembly of the aforementioned type, characterized in that the upper layer is porous and has a resistance to air passage of between 200 Nm -3 .s and 2000 Nm -3 .s .
  • orientations are generally the usual orientations of a motor vehicle.
  • the terms “above”, “on”, “below”, “below”, “below”, “above” and “below” are relative in relation to the reference surface of the motor vehicle, with respect to which is arranged the soundproofing assembly.
  • the term “inferior” is thus understood to be the closest to the surface and the term “superior” to be the farthest from that surface.
  • Soundproofing assemblies 10A, 10B according to the invention are illustrated by the Figures 1 and 2 . These sets are intended to be arranged facing an inner surface 12 of a motor vehicle.
  • the assemblies 10A, 10B are intended to be applied directly on the surface 12. They can be fixed to the surface 12, advantageously by means of pins (for example, in the case of an apron), or placed on it (for example, in the case of a carpet). In a variant, they are glued.
  • the soundproofing assemblies 10A, 10B comprise, from bottom to top on the Figures 1 and 2 , a resilient and porous base spring layer 14, a thin intermediate film 16, applied to the base spring layer 14, a porous stiffening layer 18 placed on the intermediate film 16 and a thin resistive upper layer 20 disposed on the layer porous 18.
  • the soundproofing assembly further comprises a decorative layer, such as a decor or a carpet disposed above the resistive upper layer 20.
  • the base spring layer 14 is made for example based on a porous and elastic fiber felt, or based on a porous and elastic foam or viscoelastic having acoustic insulation properties.
  • felt is meant in the sense of the present invention, a mixture of base fibers and binder.
  • the fibers may be noble fibers and / or recycled, natural or synthetic, of one or more natures.
  • natural fibers that can be used are linen, cotton, hemp, bamboo etc.
  • synthetic fibers that can be used are glass fibers, Kevlar, polyamide, acrylic, polyester, polypropylene.
  • the binder is for example a resin or binder fibers which have a melting point lower than that of the base fibers to be bonded.
  • resins are epoxy resins, or phenolic resins.
  • binder fibers are polypropylene, polyethylene, polyamide, polyester, or two-component polyesters.
  • the foam is open cell. It is for example made of polyurethane. The foam is injected or split.
  • the base spring layer 14 is porous and has a porosity adapted to have a resistivity to the passage of air advantageously between 10000 Nm -4 .s and 90000 Nm -4 .s, in particular equal to about 30000 Nm -4 . .
  • the thickness of the base spring layer 14, taken perpendicular to the surface 12, is advantageously between 5 mm and 30 mm, and for example close to 15 mm.
  • the intermediate intermediate film 16 has a thickness of, for example, between 10 ⁇ m and 500 ⁇ m, advantageously 50 ⁇ m. It has a weight per unit area of between 10 g / m 2 and 200 g / m 2 , advantageously 50 g / m 2 .
  • This film 16 is impervious to the passage of air. It is made for example based on a monolayer thermoplastic polymer such as polyethylene, polypropylene or polyester. Alternatively, the film 16 is made of multilayer thermoplastic polymers, for example based on polyethylene / polyamide, polyethylene / polyamide / polyethylene. Advantageously, the film 16 is a bilayer film based on polyamide / polyethylene.
  • the porous stiffening layer 18 is for example formed by a felt, as defined above. This can be compressed.
  • the felt comprises a high percentage of microfibers, for example more than 50% and advantageously 80% of microfibers.
  • microfibres fibers of sizes less than 0.9 dtex, advantageously 0.7 dtex.
  • the porous stiffening layer 18 is made based on an open cell split foam. It is for example made of polyurethane.
  • the slit foam also contains recycled material as defined above and / or mineral filler and / or 'bio-polyol'.
  • the thickness of the porous stiffening layer 18 is for example between 1 mm and 15 mm, for example equal to 10 mm.
  • This thickness is less than 70% of the total thickness of the layers 14, 16, 18, 20 of the soundproofing assembly.
  • this thickness is between 20% and 70% of the total thickness.
  • the density of the layer 18 is between 200 g / m 2 and 3000 g / m 2 , preferably 1600 g / m 2 .
  • the density of the layer 18 is advantageously between 10 kg / m 3 and 180 kg / m 3 .
  • the porosity of this layer 18 is chosen so that the resistance to the passage of air of this layer is advantageously between 500 Nm -3 .s and 3500 Nm -3 .s, in particular approximately equal to 1600 Nm -3 .s.
  • the resistive upper layer 20 is for example made based on a resistive nonwoven or a material having a resistance to the passage of controlled air (for example: a light weight felt, a textile, etc.) fixed on the porous layer 18.
  • It has a surface density of between 20 g / m 2 and 200 g / m 2 , advantageously 100 g / m 2 .
  • the resistive upper layer 20 is porous to present a resistance to the passage of air low in the range 200 Nm -3 .s and 2000 Nm -3 .s, preferably 1000 Nm -3 .s.
  • the first soundproofing assembly 10A comprises a base spring layer 14 as described above, advantageously made of felt, fixed on the surface 12 of the motor vehicle, and a thin intermediate film 16 as described above, advantageously made of thermoplastic polymer, assembled on the layer 14.
  • This assembly 10A comprises a porous stiffening layer 18 as described above, advantageously made based on compressed felt, and applied to the film 16. It further comprises a resistive upper layer 20, as described above, advantageously realized at non-woven base, placed in contact with the layer 18 above this layer 18.
  • the first assembly according to the invention 10A comprises, for example, a base layer 14 made of 15 mm thick cotton fiber and epoxy resin having a basis weight of 800 g / m 2 , and a thin intermediate film 16 waterproof polyethylene / polyamide having a mass equal to 50 g / m 2 .
  • the assembly 10A further comprises a porous reinforcing layer 18 of felt of cotton fibers and epoxy resin, with a thickness equal to 10 mm, a surface density of 1600 g / m 2 and resistance to the passage of the air equal to 1525 Nm -3 .s, and a resistive upper layer 20 nonwoven having an air passing resistance equal to 1000 Nm -3 .s and a weight per unit area equal to 100g / m 2 .
  • a second soundproofing assembly according to the invention 10B is shown on the Figure 2 . It differs from the first set 10A in that the base spring layer 14 is made of a porous and elastic foam or visco-elastic foam.
  • This base spring layer advantageously has a density equal to 55 kg / m 3 .
  • the provision of a decompressed porous stiffening layer 18 increases the acoustic absorption across the assembly 10A, 10B, in combination with the resistive upper layer disposed above the porous layer 18. .
  • the thin film 16 in combination with the resistive upper layer 20 compensates for the loss of insulation resulting from the thickness and decompression of the layer 18, and surprisingly improves the insulation provided by the assembly.
  • the soundproofing assemblies 10A, 10B according to the invention therefore have a very high degree of lightness, with overall surface densities of less than 3000 g / m 2 , and excellent absorption with a diffuse field absorption coefficient substantially greater than or equal to 0.8 over a very wide range of frequencies, and adjustable by adjusting the resistance to the passage of air from the upper layer 20 and the thickness of the stiffening layer 18.
  • the attenuation index in dB and the diffuse field absorption coefficient as a function of frequency have been simulated for the first set 10A according to the invention and for a conventional dual-permeable assembly of the invention. state of the art.
  • the Figure 3 illustrates the respective curves 50, 52 of the attenuation index TL in dB as a function of the frequency for the first set according to the invention 10A (curve 50) and for the whole of the state of the art (curve 52 ). A gain in very clear insulation is observed for frequencies above about 3000 Hz for the assembly 10A according to the invention.
  • the overall noise reduction is then significant, as illustrated by the curve 60 corresponding to the first set 10A according to the invention and the curve 62 corresponding to the whole of the state of the art.
  • the flexural rigidity of the stiffening layer 18 is greater than that of the spring layer 14. This flexural rigidity is for example 1.5 to 10 times greater than that of the spring layer 14, and advantageously at least two times higher.

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)

Abstract

The sound insulation assembly (10) comprises a spring layer (14) having elastic and porous base to be placed against a surface (12) of the vehicle, a thin intermediate film (16) assembled on the spring layer and having a surface mass of less than 200 g/m 2>, a porous stiffening layer (18) having a resistance to airflow of 500-3500 Nm -> 3>s and laid on the thin intermediate film, an upper porous layer laid on the porous stiffening layer, and a decorative layer laid on the upper layer. The upper layer (20) has a resistance to airflow of 200-2000 Nm -> 3>s and a surface mass of less than 200 g/m 2>. The sound insulation assembly (10) comprises a spring layer (14) having elastic and porous base to be placed against a surface (12) of the vehicle, a thin intermediate film (16) assembled on the spring layer and having a surface mass of less than 200 g/m 2>, a porous stiffening layer (18) having a resistance to airflow of 500-3500 Nm -> 3>s and laid on the thin intermediate film, an upper porous layer laid on the porous stiffening layer, and a decorative layer laid on the upper layer. The upper layer (20) has a resistance to airflow of 200-2000 Nm -> 3>s and a surface mass of less than 200 g/m 2>. The thickness of the porous stiffening layer is 20-70% of the total thickness of the sound insulation assembly. The porous stiffening layer is made of a felt, a compressed felt or a split foam, and has a surface mass of less than 3000 g/m 2>. The upper layer is made of a resistive non-woven material or a material having a resistance to controlled airflow. The thin intermediate film is monolayer or multilayer, and made of a thermoplastic polymer. The spring base layer is made of a felt.

Description

La présente invention concerne un ensemble d'insonorisation pour véhicule automobile, du type comprenant :

  • une couche ressort de base, élastique et poreuse, destinée à être placée en regard d'une surface du véhicule automobile ;
  • un film intermédiaire fin, assemblé sur la couche ressort de base et présentant une masse surfacique inférieure à 200 g/m2 ;
  • une couche poreuse de rigidification présentant une résistance au passage de l'air supérieure à 500 N.m-3.s, la couche poreuse de rigidification étant disposée sur le film intermédiaire fin ; et
  • une couche supérieure, disposée sur la couche poreuse de rigidification.
The present invention relates to a soundproofing assembly for a motor vehicle, of the type comprising:
  • a spring layer, elastic and porous, intended to be placed facing a surface of the motor vehicle;
  • a thin intermediate film, assembled on the base spring layer and having a basis weight of less than 200 g / m 2 ;
  • a porous stiffening layer having a resistance to the passage of air greater than 500 Nm -3 .s, the porous stiffening layer being disposed on the thin intermediate film; and
  • an upper layer, disposed on the porous stiffening layer.

Un tel ensemble est destiné à résoudre les problèmes acoustiques qui se posent dans un espace sensiblement clos, tel que l'habitacle d'un véhicule automobile (tapis, pavillon, panneau de porte etc), au voisinage de sources de bruit telles qu'un moteur (tablier etc), le contact de pneumatiques avec une route (passage de roue etc ), etc.Such an assembly is intended to solve the acoustic problems that arise in a substantially enclosed space, such as the passenger compartment of a motor vehicle (carpet, roof, door panel, etc.), in the vicinity of noise sources such as a engine (apron etc), the contact of tires with a road (wheel well, etc.), etc.

En général, dans le domaine des basses fréquences, les ondes acoustiques engendrées par les sources de bruit précitées subissent un « amortissement » par des matériaux sous forme de feuilles simples ou doubles (sandwich) ou par un effet de porosité et d'élasticité d'un système masse-ressort, notamment à mousse viscoélastique.In general, in the low frequency domain, the acoustic waves generated by the aforementioned noise sources are "buffered" by materials in the form of single or double sheets (sandwich) or by a porosity and elasticity effect. a mass-spring system, in particular viscoelastic foam.

Au sens de la présente invention, un ensemble d'insonorisation assure une « isolation » lorsqu'il empêche l'entrée d'ondes acoustiques à moyennes et hautes fréquences dans l'espace insonorisé, essentiellement par réflexion des ondes vers les sources de bruit ou l'extérieur de l'espace insonorisé.Within the meaning of the present invention, a soundproofing assembly provides "insulation" when it prevents the entry of medium and high frequency acoustic waves into the soundproof space, essentially by reflection of the waves towards the noise sources or the outside of the soundproofed space.

Un ensemble d'insonorisation fonctionne par « absorption acoustique » (dans le domaine des moyennes et hautes fréquences) lorsque l'énergie des ondes acoustiques se dissipe dans un matériau absorbant.A soundproofing package operates by "sound absorption" (in the medium and high frequency range) when the energy of the acoustic waves dissipates in an absorbent material.

On connaît de EP -A- 1 428 656 un ensemble d'insonorisation de faible masse, qui présente une couche ressort en mousse, un film fin intermédiaire en polymère thermoplastique, et une couche poreuse en feutre, sur laquelle est disposée une couche décorative.We know EP-A-1,428,656 a low mass soundproofing assembly having a foam spring layer, an intermediate thermoplastic polymer thin film, and a porous felt layer on which a decorative layer is disposed.

Un tel système présente l'avantage d'être léger par nature, et offre une absorption acoustique correcte, dont les propriétés peuvent être réglées en modifiant l'épaisseur de la couche poreuse.Such a system has the advantage of being lightweight in nature, and provides a good sound absorption, whose properties can be adjusted by changing the thickness of the porous layer.

Le film fin est placé entre la couche poreuse et la couche de mousse afin d'éviter la saturation de la couche poreuse par la mousse lors du moussage. Ainsi la couche de mousse se forme sans pénétrer dans la couche poreuse. Toutefois, ce film fin n'a aucune fonction acoustique et est quasiment transparent acoustiquement.The thin film is placed between the porous layer and the foam layer to prevent saturation of the porous layer by the foam during foaming. Thus the foam layer is formed without penetrating the porous layer. However, this thin film has no acoustic function and is almost acoustically transparent.

Un tel ensemble ne donne pas entière satisfaction. En effet, s'il présente une légèreté adéquate et une absorption correcte, l'isolation acoustique d'un tel ensemble est assez faible, ce qui nuit aux propriétés globales d'insonorisation de l'ensemble. Pour améliorer l'isolation de l'ensemble précité, il serait nécessaire de comprimer la couche poreuse en feutre, ce qui dégraderait fortement l'absorption.Such a set does not give complete satisfaction. Indeed, if it has adequate lightness and proper absorption, the sound insulation of such a set is quite low, which affects the overall soundproofing properties of the whole. To improve the insulation of the aforementioned assembly, it would be necessary to compress the porous layer of felt, which would greatly degrade the absorption.

Un but de l'invention est donc d'obtenir un ensemble d'insonorisation de faible masse, dans lequel l'isolation acoustique est améliorée, sans dégrader l'absorption.An object of the invention is therefore to obtain a low mass soundproofing assembly, wherein the acoustic insulation is improved, without degrading the absorption.

A cet effet, l'invention a pour objet un ensemble du type précité, caractérisé en ce que la couche supérieure est poreuse et présente une résistance au passage de l'air comprise entre 200 N.m-3.s et 2000 N.m-3.s.To this end, the invention relates to an assembly of the aforementioned type, characterized in that the upper layer is porous and has a resistance to air passage of between 200 Nm -3 .s and 2000 Nm -3 .s .

L'ensemble d'insonorisation selon l'invention peut comprendre l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou suivant toute(s) combinaison(s) techniquement possible(s) :

  • l'épaisseur de la couche poreuse de rigidification est comprise entre 20% et 70% de l'épaisseur totale de l'ensemble d'insonorisation ;
  • la couche poreuse de rigidification présente une résistance au passage de l'air comprise entre 500 N.m-3.s et 3500 N.m-3.s ;
  • la couche poreuse de rigidification est réalisée à base d'un feutre, d'un feutre comprimé ou d'une mousse refendue ;
  • la couche poreuse de rigidification présente une masse surfacique inférieure à 3000 g/m2 ;
  • la couche supérieure présente une masse surfacique inférieure à 200 g/m2 ;
  • la couche supérieure est réalisée à base d'un non-tissé résistif ou d'un matériau ayant une résistance au passage de l'air contrôlée ;
  • le film intermédiaire fin est monocouche ou multicouches et est réalisé à base d'au moins un polymère thermoplastique ;
  • l'ensemble d'insonorisation comprend une couche décorative disposée sur la couche supérieure ; et
  • la couche ressort de base et la couche poreuse de rigidification sont réalisées à base de feutre.
The soundproofing assembly according to the invention may comprise one or more of the following characteristics, taken separately or according to any combination (s) technically possible (s):
  • the thickness of the porous stiffening layer is between 20% and 70% of the total thickness of the soundproofing assembly;
  • the porous stiffening layer has a resistance to the passage of air of between 500 Nm -3 .s and 3500 Nm -3 .s;
  • the porous stiffening layer is made from a felt, compressed felt or slit foam;
  • the porous stiffening layer has a basis weight of less than 3000 g / m 2 ;
  • the upper layer has a basis weight of less than 200 g / m 2 ;
  • the upper layer is made of a non-woven resistive or a material having a resistance to the passage of controlled air;
  • the thin intermediate film is monolayer or multilayer and is made of at least one thermoplastic polymer;
  • the soundproofing assembly comprises a decorative layer disposed on the upper layer; and
  • the base spring layer and the porous stiffening layer are made of felt.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés, sur lesquels :

  • la Figure 1 est une vue en coupe transversale d'un premier ensemble d'insonorisation selon l'invention, disposé sur une surface d'un véhicule automobile;
  • la Figure 2 est une vue analogue à la Figure 1 d'un deuxième ensemble d'insonorisation selon l'invention;
  • la Figure 3 est un graphe représentant l'indice d'affaiblissement en dB en fonction de la fréquence pour un ensemble d'insonorisation selon l'invention et pour un ensemble d'insonorisation de l'état de la technique ;
  • la Figure 4 est un graphe représentant les courbes du coefficient d'absorption en champ diffus en fonction de la fréquence pour un ensemble d'insonorisation selon l'invention et pour un ensemble d'insonorisation de l'état de la technique ; et
  • la Figure 5 est un graphe représentant les courbes de la réduction de bruit globale en dB pour un ensemble selon l'invention et pour un ensemble de l'état de la technique.
The invention will be better understood on reading the description which follows, given solely by way of example, and with reference to the appended drawings, in which:
  • the Figure 1 is a cross-sectional view of a first soundproofing assembly according to the invention, disposed on a surface of a motor vehicle;
  • the Figure 2 is a view similar to the Figure 1 a second soundproofing assembly according to the invention;
  • the Figure 3 is a graph representing the dB attenuation index as a function of the frequency for a soundproofing assembly according to the invention and for a soundproofing assembly of the state of the art;
  • the Figure 4 is a graph representing the curves of the absorption coefficient in diffuse field as a function of frequency for a soundproofing assembly according to the invention and for a soundproofing assembly of the state of the art; and
  • the Figure 5 is a graph representing the curves of the overall noise reduction in dB for an assembly according to the invention and for a set of the state of the art.

Dans tout ce qui suit, les orientations sont généralement les orientations habituelles d'un véhicule automobile. Toutefois, les termes « au dessus », « sur », « en dessous », « sous », « supérieur » et « inférieur » s'entendent de manière relative, par rapport à la surface de référence du véhicule automobile, en regard de laquelle est disposé l'ensemble d'insonorisation. Le terme « inférieur » s'entend ainsi comme étant situé le plus près de la surface et le terme « supérieur » comme étant situé le plus éloigné de cette surface.In all that follows, the orientations are generally the usual orientations of a motor vehicle. However, the terms "above", "on", "below", "below", "below", "above" and "below" are relative in relation to the reference surface of the motor vehicle, with respect to which is arranged the soundproofing assembly. The term "inferior" is thus understood to be the closest to the surface and the term "superior" to be the farthest from that surface.

Des ensembles d'insonorisation 10A, 10B selon l'invention sont illustrés par les Figures 1 et 2. Ces ensembles sont destinés à être disposés en regard d'une surface intérieure 12 d'un véhicule automobile.Soundproofing assemblies 10A, 10B according to the invention are illustrated by the Figures 1 and 2 . These sets are intended to be arranged facing an inner surface 12 of a motor vehicle.

La surface 12 est par exemple une surface métallique en tôle du véhicule définissant notamment un plancher, un plafond, une porte, un tablier séparant l'habitacle du compartiment moteur, un capot, ou un passage de roue de véhicule automobile. Avantageusement, la surface 12 est un tablier.The surface 12 is for example a metal sheet metal surface of the vehicle defining in particular a floor, a ceiling, a door, an apron separating the passenger compartment of the engine compartment, a hood, or a wheel arch of a motor vehicle. Advantageously, the surface 12 is an apron.

Les ensembles 10A, 10B sont destinés à être appliqués directement sur la surface 12. Ils peuvent être fixés à la surface 12, avantageusement au moyen de pions (par exemple, dans le cas d'un tablier), ou posés sur celle-ci (par exemple, dans le cas d'un tapis). Dans une variante, ils sont collés.The assemblies 10A, 10B are intended to be applied directly on the surface 12. They can be fixed to the surface 12, advantageously by means of pins (for example, in the case of an apron), or placed on it ( for example, in the case of a carpet). In a variant, they are glued.

On décrira tout d'abord la structure générale et les propriétés des différentes couches formant un ensemble d'insonorisation selon l'invention et ensuite, des exemples de disposition de ces couches, tels que représentés sur les Figures.First of all, the general structure and the properties of the various layers forming a soundproofing assembly according to the invention will be described, and then examples of the arrangement of these layers, as shown in FIGS.

Les ensembles d'insonorisation 10A, 10B comprennent, de bas en haut sur les Figures 1 et 2, une couche ressort de base 14, élastique et poreuse, un film intermédiaire fin 16, appliqué sur la couche ressort de base 14, une couche poreuse de rigidification 18 placée sur le film intermédiaire 16 et une couche supérieure fine résistive 20 disposée sur la couche poreuse 18.The soundproofing assemblies 10A, 10B comprise, from bottom to top on the Figures 1 and 2 , a resilient and porous base spring layer 14, a thin intermediate film 16, applied to the base spring layer 14, a porous stiffening layer 18 placed on the intermediate film 16 and a thin resistive upper layer 20 disposed on the layer porous 18.

En variante (non représentée), l'ensemble d'insonorisation comprend en outre une couche décorative, comme par exemple un décor ou une moquette disposée au-dessus de la couche supérieure résistive 20.Alternatively (not shown), the soundproofing assembly further comprises a decorative layer, such as a decor or a carpet disposed above the resistive upper layer 20.

La couche ressort de base 14 est réalisée par exemple à base d'un feutre poreux et élastique de fibres, ou à base d'une mousse poreuse et élastique ou encore visco-élastique présentant des propriétés d'isolation acoustique.The base spring layer 14 is made for example based on a porous and elastic fiber felt, or based on a porous and elastic foam or viscoelastic having acoustic insulation properties.

Par « feutre », on entend au sens de la présente invention, un mélange de fibres de base et de liant. Les fibres peuvent être des fibres nobles et/ou recyclées, naturelles ou synthétiques, d'une seule ou de plusieurs natures. Des exemples de fibres naturelles pouvant être utilisées sont le lin, le coton, le chanvre, le bambou etc. Des exemples de fibres synthétiques pouvant être utilisées sont les fibres de verre, le kevlar, le polyamide, l'acrylique, le polyester, le polypropylène.By "felt" is meant in the sense of the present invention, a mixture of base fibers and binder. The fibers may be noble fibers and / or recycled, natural or synthetic, of one or more natures. Examples of natural fibers that can be used are linen, cotton, hemp, bamboo etc. Examples of synthetic fibers that can be used are glass fibers, Kevlar, polyamide, acrylic, polyester, polypropylene.

Le liant est par exemple une résine ou des fibres liantes qui présentent un point de fusion inférieur à celui des fibres de base à lier. Des exemples de résines sont les résines époxy, ou les résines phénoliques. Des exemples de fibres liantes sont le polypropylène, le polyéthylène, le polyamide, le polyester, ou les polyesters bicomposants.The binder is for example a resin or binder fibers which have a melting point lower than that of the base fibers to be bonded. Examples of resins are epoxy resins, or phenolic resins. Examples of binder fibers are polypropylene, polyethylene, polyamide, polyester, or two-component polyesters.

Dans une variante, le feutre de la couche ressort de base 14 contient de la matière recyclée provenant de déchets d'origine interne ou externe, par exemple de chutes de pièces d'équipements automobiles, de rebuts de fabrication, ou de pièces de fin de vie d'un véhicule. Ces déchets sont par exemple broyés et incorporés dans le feutre sous forme de morceaux de matière divisée constitués par des agglomérats, des flocons ou des particules. Les composants des déchets peuvent être séparés avant ou pendant le broyage.In one variant, the felt of the base spring layer 14 contains recycled material coming from waste of internal or external origin, for example from falling parts of automotive equipment, manufacturing waste, or end-of-life parts. life of a vehicle. This waste is for example crushed and incorporated in the felt in the form of pieces of divided material consisting of agglomerates, flakes or particles. The waste components can be separated before or during grinding.

Dans la variante de couche ressort de base 14 en mousse, la mousse est à cellules ouvertes. Elle est par exemple réalisée en polyuréthanne. La mousse est injectée ou refendue.In the base foam layer variant 14, the foam is open cell. It is for example made of polyurethane. The foam is injected or split.

En variante, la mousse injectée ou refendue contient également de la matière recyclée, telle que définie ci-dessus, et/ou de la charge minérale et/ou du 'bio-polyol'.In a variant, the injected or split foam also contains recycled material, as defined above, and / or mineral filler and / or 'bio-polyol'.

La couche ressort de base 14 est poreuse et présente une porosité adaptée pour présenter une résistivité au passage de l'air avantageusement comprise entre 10000 N.m-4.s et 90000 N.m-4.s, notamment égale à environ 30000 N.m-4.s.The base spring layer 14 is porous and has a porosity adapted to have a resistivity to the passage of air advantageously between 10000 Nm -4 .s and 90000 Nm -4 .s, in particular equal to about 30000 Nm -4 . .

La résistance au passage de l'air ou sa résistivité est mesurée par la méthode décrite dans la thèse "Mesures des paramètres caractérisant un milieu poreux. Etude expérimentale du comportement acoustique des mousses aux basses fréquences.", Michel HENRY, soutenue le 3 octobre 1997 à l'Université du Mans.Resistance to the passage of air or its resistivity is measured by the method described in the thesis "Measurements of parameters characterizing a porous medium.Experimental study of the acoustic behavior of foams at low frequencies.", Michel HENRY, defended on October 3, 1997 at the University of Le Mans.

Dans le cas du feutre, la couche 14 présente une masse surfacique comprise entre 200 g/m2 et 2 000 g/m2, avantageusement 800 g/m2. Dans le cas de la mousse, la masse volumique de la couche 14 est comprise entre 30 kg/m3 et 70 kg/m3 et notamment environ 50 kg/m3.In the case of the felt, the layer 14 has a weight per unit area of between 200 g / m 2 and 2000 g / m 2 , advantageously 800 g / m 2 . In the case of the foam, the density of the layer 14 is between 30 kg / m 3 and 70 kg / m 3 and in particular about 50 kg / m 3 .

L'épaisseur de la couche ressort de base 14, prise perpendiculairement à la surface 12, est avantageusement comprise entre 5 mm et 30 mm, et par exemple voisine de 15 mm.The thickness of the base spring layer 14, taken perpendicular to the surface 12, is advantageously between 5 mm and 30 mm, and for example close to 15 mm.

Pour présenter des propriétés de ressort, la couche ressort de base 14 présente avantageusement un module élastique compris entre 100 Pa et 100000 Pa, notamment environ 40000 Pa.To present spring properties, the base spring layer 14 advantageously has an elastic modulus of between 100 Pa and 100000 Pa, in particular around 40000 Pa.

Le film intermédiaire fin 16 présente une épaisseur comprise par exemple entre 10 µm et 500 µm, avantageusement 50 µm. Il présente une masse surfacique comprise entre 10 g/m2 et 200 g/m2, avantageusement 50 g/m2.The intermediate intermediate film 16 has a thickness of, for example, between 10 μm and 500 μm, advantageously 50 μm. It has a weight per unit area of between 10 g / m 2 and 200 g / m 2 , advantageously 50 g / m 2 .

Ce film 16 est étanche au passage de l'air. Il est réalisé par exemple à base d'un polymère thermoplastique monocouche comme du polyéthylène, du polypropylène ou du polyester. En variante, le film 16 est réalisé à base de polymères thermoplastiques multicouches, par exemple à base de polyéthylène / polyamide, de polyéthylène / polyamide / polyéthylène. Avantageusement, le film 16 est un film bicouche à base de polyamide / polyéthylène.This film 16 is impervious to the passage of air. It is made for example based on a monolayer thermoplastic polymer such as polyethylene, polypropylene or polyester. Alternatively, the film 16 is made of multilayer thermoplastic polymers, for example based on polyethylene / polyamide, polyethylene / polyamide / polyethylene. Advantageously, the film 16 is a bilayer film based on polyamide / polyethylene.

Lorsque la couche ressort de base 14 est réalisée en mousse, elle est injectée sur le film 16.When the base spring layer 14 is made of foam, it is injected onto the film 16.

La couche poreuse de rigidification 18 est par exemple formée par un feutre, tel que défini ci-dessus. Celui-ci peut être comprimé.The porous stiffening layer 18 is for example formed by a felt, as defined above. This can be compressed.

Dans une variante, le feutre comprend un pourcentage élevé de microfibres, par exemple plus de 50% et avantageusement 80% de microfibres.In a variant, the felt comprises a high percentage of microfibers, for example more than 50% and advantageously 80% of microfibers.

Par « microfibres », on entend des fibres de tailles inférieures à 0,9 dtex, avantageusement 0,7 dtex.By "microfibres" is meant fibers of sizes less than 0.9 dtex, advantageously 0.7 dtex.

Dans une variante, le feutre contient également de la matière recyclée, telle que définie ci-dessus.In a variant, the felt also contains recycled material as defined above.

En variante, la couche poreuse de rigidification 18 est réalisée à base d'une mousse refendue à cellules ouvertes. Elle est par exemple réalisée en polyuréthanne.As a variant, the porous stiffening layer 18 is made based on an open cell split foam. It is for example made of polyurethane.

Dans une variante, la mousse refendue contient également de la matière recyclée, telle que définie ci-dessus, et/ou de la charge minérale et/ou du 'bio-polyol'.Alternatively, the slit foam also contains recycled material as defined above and / or mineral filler and / or 'bio-polyol'.

L'épaisseur de la couche poreuse de rigidification 18 est par exemple comprise entre 1 mm et 15 mm, par exemple égale à 10 mm.The thickness of the porous stiffening layer 18 is for example between 1 mm and 15 mm, for example equal to 10 mm.

Cette épaisseur est inférieure à 70% de l'épaisseur totale des couches 14, 16, 18, 20 de l'ensemble d'insonorisation. Avantageusement, cette épaisseur est comprise entre 20% et 70% de l'épaisseur totale.This thickness is less than 70% of the total thickness of the layers 14, 16, 18, 20 of the soundproofing assembly. Advantageously, this thickness is between 20% and 70% of the total thickness.

Dans le cas d'une couche 18 en feutre, la masse surfacique de la couche 18 est comprise entre 200 g/m2 et 3 000 g/m2, avantageusement 1 600 g/m2. Dans le cas d'une couche 18 en mousse, la densité de la couche 18 est comprise avantageusement entre 10 kg/m3 et 180 kg/m3.In the case of a layer 18 made of felt, the density of the layer 18 is between 200 g / m 2 and 3000 g / m 2 , preferably 1600 g / m 2 . In the case of a foam layer 18, the density of the layer 18 is advantageously between 10 kg / m 3 and 180 kg / m 3 .

La porosité de cette couche 18 est choisie pour que la résistance au passage de l'air de cette couche soit avantageusement comprise entre 500 N.m-3.s et 3500 N.m-3.s, notamment environ égale à 1600 N.m-3.s.The porosity of this layer 18 is chosen so that the resistance to the passage of air of this layer is advantageously between 500 Nm -3 .s and 3500 Nm -3 .s, in particular approximately equal to 1600 Nm -3 .s.

La couche supérieure résistive 20 est par exemple réalisée à base d'un non-tissé résistif ou d'un matériau ayant une résistance au passage de l'air contrôlée (par exemple: un feutre de faible grammage, un textile etc) fixé sur la couche poreuse 18.The resistive upper layer 20 is for example made based on a resistive nonwoven or a material having a resistance to the passage of controlled air (for example: a light weight felt, a textile, etc.) fixed on the porous layer 18.

Elle présente une masse surfacique comprise entre 20 g/m2 et 200 g/m2, avantageusement 100 g/m2.It has a surface density of between 20 g / m 2 and 200 g / m 2 , advantageously 100 g / m 2 .

Selon l'invention, la couche supérieure résistive 20 est poreuse pour présenter une résistance au passage de l'air faible comprise entre 200 N.m-3.s et 2000 N.m-3.s, avantageusement 1000 N.m-3.s.According to the invention, the resistive upper layer 20 is porous to present a resistance to the passage of air low in the range 200 Nm -3 .s and 2000 Nm -3 .s, preferably 1000 Nm -3 .s.

Deux exemples de structures d'ensembles d'insonorisation selon l'invention, réalisés à base des couches 14 à 20 telles que décrites plus haut, vont maintenant être décrits en regard des Figures 1 à 2.Two examples of structures of soundproofing assemblies according to the invention, made on the basis of layers 14 to 20 as described above, will now be described with reference to FIGS. Figures 1 to 2 .

Comme l'illustre la Figure 1, le premier ensemble d'insonorisation 10A selon l'invention comprend une couche ressort de base 14 telle que décrite plus haut, avantageusement en feutre, fixée sur la surface 12 du véhicule automobile, et un film intermédiaire fin 16 tel que décrit plus haut, avantageusement en polymère thermoplastique, assemblé sur la couche 14.As illustrated by Figure 1 , the first soundproofing assembly 10A according to the invention comprises a base spring layer 14 as described above, advantageously made of felt, fixed on the surface 12 of the motor vehicle, and a thin intermediate film 16 as described above, advantageously made of thermoplastic polymer, assembled on the layer 14.

Cet ensemble 10A comprend une couche poreuse de rigidification 18 telle que décrite plus haut, avantageusement réalisée à base de feutre comprimé, et appliquée sur le film 16. Elle comprend en outre une couche supérieure résistive 20, telle que décrite plus haut, avantageusement réalisée à base de non-tissé, placée au contact de la couche 18 au dessus de cette couche 18.This assembly 10A comprises a porous stiffening layer 18 as described above, advantageously made based on compressed felt, and applied to the film 16. It further comprises a resistive upper layer 20, as described above, advantageously realized at non-woven base, placed in contact with the layer 18 above this layer 18.

Le premier ensemble selon l'invention 10A comprend, par exemple, une couche ressort de base 14 en feutre de fibres de coton et de résine époxy, de 15 mm d'épaisseur, présentant une masse surfacique égale à 800 g/m2, et un film intermédiaire fin 16 étanche en polyéthylène / polyamide présentant une masse égale à 50 g/m2. L'ensemble 10A comprend en outre une couche poreuse 18 de rigidification en feutre de fibres de coton et de résine époxy, d'épaisseur égale à 10 mm, de masse surfacique égale à 1600 g/m2 et de résistance au passage de l'air égale à 1525 N.m-3.s, et une couche supérieure résistive 20 en non-tissé présentant une résistance au passage de l'air égale à 1000 N.m-3.s et une masse surfacique égale à 100g/m2.The first assembly according to the invention 10A comprises, for example, a base layer 14 made of 15 mm thick cotton fiber and epoxy resin having a basis weight of 800 g / m 2 , and a thin intermediate film 16 waterproof polyethylene / polyamide having a mass equal to 50 g / m 2 . The assembly 10A further comprises a porous reinforcing layer 18 of felt of cotton fibers and epoxy resin, with a thickness equal to 10 mm, a surface density of 1600 g / m 2 and resistance to the passage of the air equal to 1525 Nm -3 .s, and a resistive upper layer 20 nonwoven having an air passing resistance equal to 1000 Nm -3 .s and a weight per unit area equal to 100g / m 2 .

Un deuxième ensemble d'insonorisation selon l'invention 10B est représenté sur la Figure 2. Il diffère du premier ensemble 10A en ce que la couche ressort de base 14 est réalisée à base d'une mousse poreuse et élastique ou encore visco-élastique.A second soundproofing assembly according to the invention 10B is shown on the Figure 2 . It differs from the first set 10A in that the base spring layer 14 is made of a porous and elastic foam or visco-elastic foam.

Cette couche ressort de base présente avantageusement une densité égale à 55 kg/m3 . This base spring layer advantageously has a density equal to 55 kg / m 3 .

Dans les ensembles selon l'invention, la disposition d'une couche poreuse de rigidification 18 décompressée augmente l'absorption acoustique à travers l'ensemble 10A, 10B, en combinaison avec la couche supérieure résistive disposée 20 au-dessus de la couche poreuse 18.In the assemblies according to the invention, the provision of a decompressed porous stiffening layer 18 increases the acoustic absorption across the assembly 10A, 10B, in combination with the resistive upper layer disposed above the porous layer 18. .

Le film fin 16 en combinaison avec la couche supérieure résistive 20, compense la perte d'isolation résultant de l'épaisseur et de la décompression de la couche 18, et améliore de manière surprenante l'isolation fournie par l'ensemble.The thin film 16 in combination with the resistive upper layer 20 compensates for the loss of insulation resulting from the thickness and decompression of the layer 18, and surprisingly improves the insulation provided by the assembly.

Les ensembles d'insonorisation 10A, 10B selon l'invention présentent donc une très grande légèreté, avec des masses surfaciques globales inférieures à 3000 g/m2, et une excellente absorption avec un coefficient d'absorption en champ diffus sensiblement supérieur ou égal à 0,8 sur une très large gamme de fréquences, et réglable en ajustant la résistance au passage de l'air de la couche supérieure 20 et l'épaisseur de la couche de rigidification 18.The soundproofing assemblies 10A, 10B according to the invention therefore have a very high degree of lightness, with overall surface densities of less than 3000 g / m 2 , and excellent absorption with a diffuse field absorption coefficient substantially greater than or equal to 0.8 over a very wide range of frequencies, and adjustable by adjusting the resistance to the passage of air from the upper layer 20 and the thickness of the stiffening layer 18.

Grâce au film 16 et à la couche supérieure 20, les ensembles 10A, 10B présentent des propriétés d'isolation améliorées par rapport à un ensemble bi-perméable classique de l'état de la technique, tout en conservant une bonne absorption.Thanks to the film 16 and the upper layer 20, the assemblies 10A, 10B have improved insulation properties compared to a conventional bi-permeable assembly of the state of the art, while maintaining good absorption.

A titre d'illustration, l'indice d'affaiblissement en dB et le coefficient d'absorption en champ diffus en fonction de la fréquence ont été simulés pour le premier ensemble 10A selon l'invention et pour un ensemble bi-perméable classique de l'état de la technique.By way of illustration, the attenuation index in dB and the diffuse field absorption coefficient as a function of frequency have been simulated for the first set 10A according to the invention and for a conventional dual-permeable assembly of the invention. state of the art.

L'ensemble d'insonorisation de l'état de la technique comprend dans cet exemple une couche de feutre poreux et élastique d'épaisseur égale à 20 mm, de masse surfacique égale à 1150 g/m2 et une couche de feutre comprimé d'épaisseur égale à 5 mm, de masse surfacique égale à 1400 g/m2.The soundproofing assembly of the state of the art comprises in this example a layer of porous and elastic felt of thickness equal to 20 mm, with a surface density of 1150 g / m 2 and a layer of compressed felt of thickness equal to 5 mm, weight per unit area equal to 1400 g / m 2 .

La Figure 3 illustre les courbes respectives 50, 52 de l'indice d'affaiblissement TL en dB en fonction de la fréquence pour le premier ensemble selon l'invention 10A (courbe 50) et pour l'ensemble de l'état de la technique (courbe 52). Un gain en isolation très net est observé pour les fréquences supérieures à 3000 Hz environ pour l'ensemble 10A selon l'invention.The Figure 3 illustrates the respective curves 50, 52 of the attenuation index TL in dB as a function of the frequency for the first set according to the invention 10A (curve 50) and for the whole of the state of the art (curve 52 ). A gain in very clear insulation is observed for frequencies above about 3000 Hz for the assembly 10A according to the invention.

Les courbes 54, 56 respectives du coefficient d'absorption α en champ diffus en fonction de la fréquence pour le premier ensemble 10A selon l'invention (courbe 54) et pour l'ensemble de l'état de la technique (courbe 56) sont représentés sur la Figure 4. Comme représenté sur cette Figure, une amélioration nette de l'absorption est observée pour l'ensemble 10A selon l'invention à des fréquences supérieures à 1600 Hz.The respective curves 54, 56 of the absorption coefficient α in diffuse field as a function of the frequency for the first set 10A according to the invention (curve 54) and for the whole of the state of the art (curve 56) are represented on the Figure 4 . As shown in this Figure, a net improvement in absorption is observed for the assembly 10A according to the invention at frequencies greater than 1600 Hz.

En référence à la Figure 5, la réduction de bruit globale est alors significative, comme l'illustrent la courbe 60 correspondant au premier ensemble 10A selon l'invention et la courbe 62 correspondant à l'ensemble de l'état de la technique.With reference to the Figure 5 the overall noise reduction is then significant, as illustrated by the curve 60 corresponding to the first set 10A according to the invention and the curve 62 corresponding to the whole of the state of the art.

Un ensemble selon l'invention peut comprendre la combinaison avantageuse des caractéristiques suivantes :

  • la couche ressort de base 14 est un feutre dont la masse surfacique est sensiblement égale à 800 g/m2 et l'épaisseur est sensiblement égale à 15 mm ;
  • le film intermédiaire fin 16 est un film bicouche polyéthylène/polyamide dont la masse surfacique est égale à 50 g/m2 ;
  • la couche poreuse de rigidification 18 est un feutre dont la masse surfacique est égale à 1600 g/m2 et l'épaisseur est égale à 10 mm ; et
  • la couche supérieure 20 est un non-tissé résistif dont la résistance au passage de l'air est égale à 1000 N.m-3.s.
An assembly according to the invention may comprise the advantageous combination of the following characteristics:
  • the base spring layer 14 is a felt whose surface mass is substantially equal to 800 g / m 2 and the thickness is substantially equal to 15 mm;
  • the intermediate intermediate film 16 is a polyethylene / polyamide bilayer film whose surface mass is equal to 50 g / m 2 ;
  • the porous stiffening layer 18 is a felt with a weight per unit area of 1600 g / m 2 and a thickness of 10 mm; and
  • the upper layer 20 is a non-woven resistive whose resistance to the passage of air is equal to 1000 Nm -3 .s.

L'étanchéité au passage de l'air du film 16 décrite plus haut est telle que le film 16 présente une résistance au passage de l'air trop élevée pour être mesurée par la méthode décrite dans la thèse "Mesures des paramètres caractérisant un milieu poreux. Etude expérimentale du comportement acoustique des mousses aux basses fréquences" de Michel HENRY soutenue le 3 octobre 1997 à l'université du Mans.The tightness to the passage of air of the film 16 described above is such that the film 16 has a resistance to the passage of air too high to be measured by the method described in the thesis "Measurement of parameters characterizing a porous medium Experimental study of the acoustic behavior of mosses at low frequencies "by Michel HENRY supported on October 3, 1997 at the University of Le Mans.

En outre, la couche de rigidification 18 est plus rigide que la couche ressort de base 16. Elle présente ainsi un module d'Young supérieur à 6.103 Pa, par exemple compris entre 6.103 Pa et 6.106 Pa, et avantageusement environ égal à 15.103 Pa.In addition, the stiffening layer 18 is more rigid than the base spring layer 16. It thus has a Young's modulus greater than 6.10 3 Pa, for example between 6.10 3 Pa and 6.10 6 Pa, and advantageously about equal to 15.10 3 Pa.

La rigidité en flexion de la couche de rigidification 18 est plus grande que celle de la couche ressort 14. Cette rigidité en flexion est par exemple de 1,5 fois à 10 fois supérieure à celle de la couche ressort 14, et avantageusement au moins deux fois supérieure.The flexural rigidity of the stiffening layer 18 is greater than that of the spring layer 14. This flexural rigidity is for example 1.5 to 10 times greater than that of the spring layer 14, and advantageously at least two times higher.

Claims (12)

Ensemble (10A, 10B) d'insonorisation pour véhicule automobile, du type comprenant : - une couche ressort de base (14), élastique et poreuse, destinée à être placée en regard d'une surface (12) du véhicule automobile ; - un film intermédiaire fin (16), assemblé sur la couche ressort de base (14) et présentant une masse surfacique inférieure à 200 g/m2 ; - une couche poreuse de rigidification (18) présentant une résistance au passage de l'air supérieure à 500 N.m-3.s, la couche poreuse de rigidification (18) étant disposée sur le film intermédiaire fin (16) ; - une couche supérieure (20), disposée sur la couche poreuse de rigidification (18) ; caractérisée en ce que la couche supérieure (20) est poreuse et présente une résistance au passage de l'air comprise entre 200 N.m-3.s et 2000 N.m-3.s.Soundproofing assembly (10A, 10B) for a motor vehicle, of the type comprising: a resilient and porous spring base layer (14) intended to be placed facing a surface (12) of the motor vehicle; - A thin intermediate film (16), assembled on the base spring layer (14) and having a basis weight less than 200 g / m 2 ; - a porous stiffening layer (18) having a resistance to air passage greater than 500 Nm -3 .s, the porous stiffening layer (18) being disposed on the thin intermediate film (16); an upper layer (20) disposed on the porous stiffening layer (18); characterized in that the upper layer (20) is porous and has a resistance to the passage of air of between 200 Nm -3 .s and 2000 Nm -3 .s. Ensemble (10A, 10B) selon la revendication 1, caractérisé en ce que le film intermédiaire fin est étanche au passage de l'air.Assembly (10A, 10B) according to claim 1, characterized in that the thin intermediate film is impervious to the passage of air. Ensemble (10A, 10B) selon la revendication 1 ou 2, caractérisé en ce que l'épaisseur de la couche poreuse de rigidification (18) est comprise entre 20% et 70% de l'épaisseur totale de l'ensemble d'insonorisation.Assembly (10A, 10B) according to claim 1 or 2, characterized in that the thickness of the porous stiffening layer (18) is between 20% and 70% of the total thickness of the soundproofing assembly. Ensemble (10A, 10B) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la couche poreuse de rigidification (18) présente une résistance au passage de l'air comprise entre 500 N.m-3.s et 3500 N.m-3.s.Assembly (10A, 10B) according to any one of claims 1 to 3, characterized in that the porous stiffening layer (18) has a resistance to the passage of air of between 500 Nm -3 .s and 3500 Nm - 3 .s. Ensemble (10A, 10B) selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche poreuse de rigidification (18) est réalisée à base d'un feutre, d'un feutre comprimé ou d'une mousse refendue.Assembly (10A, 10B) according to any one of the preceding claims, characterized in that the porous stiffening layer (18) is made from a felt, a compressed felt or a slit foam. Ensemble (10A, 10B) selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche poreuse de rigidification (18) présente une masse surfacique inférieure à 3000 g/m2.Assembly (10A, 10B) according to any one of the preceding claims, characterized in that the porous stiffening layer (18) has a basis weight of less than 3000 g / m 2 . Ensemble (10A, 10B) selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche supérieure (20) présente une masse surfacique inférieure à 200 g/m2.Assembly (10A, 10B) according to any one of the preceding claims, characterized in that the upper layer (20) has a basis weight of less than 200 g / m 2 . Ensemble (10A, 10B) selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche supérieure (20) est réalisée à base d'un non-tissé résistif ou d'un matériau ayant une résistance au passage de l'air contrôlée.Assembly (10A, 10B) according to one of the preceding claims, characterized in that the upper layer (20) is made from a non-woven resistive material or a material having a resistance to the passage of controlled air. Ensemble (10A, 10B) selon l'une quelconque des revendications précédentes, caractérisé en ce que le film intermédiaire fin (16) est monocouche ou multicouches et est réalisé à base d'au moins un polymère thermoplastique.Assembly (10A, 10B) according to any one of the preceding claims, characterized in that the thin intermediate film (16) is monolayer or multilayer and is made of at least one thermoplastic polymer. Ensemble selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une couche décorative disposée sur la couche supérieure (20).Assembly according to any one of the preceding claims, characterized in that it comprises a decorative layer disposed on the upper layer (20). Ensemble (10A) selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche ressort de base (14) et la couche poreuse de rigidification (18) sont réalisées à base de feutre.Assembly (10A) according to any one of the preceding claims, characterized in that the base spring layer (14) and the porous stiffening layer (18) are made of felt. Ensemble (10A, 10B) selon l'une quelconque des revendications précédentes caractérisé en ce que la rigidité en flexion de la couche de rigidification (18) est au moins 1,5 fois supérieure à la rigidité en flexion de la couche ressort de base (14).Assembly (10A, 10B) according to any one of the preceding claims, characterized in that the bending stiffness of the stiffening layer (18) is at least 1.5 times greater than the flexural stiffness of the base spring layer ( 14).
EP09168240.1A 2008-08-25 2009-08-20 Soundproofing assembly with a thin film for an automobile vehicle, and associated automobile vehicle Revoked EP2159786B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09168240T PL2159786T3 (en) 2008-08-25 2009-08-20 Soundproofing assembly with a thin film for an automobile vehicle, and associated automobile vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0855694A FR2935190B1 (en) 2008-08-25 2008-08-25 SOUND CONTROL SYSTEM WITH END FILM FOR MOTOR VEHICLE AND ASSOCIATED MOTOR VEHICLE

Publications (2)

Publication Number Publication Date
EP2159786A1 true EP2159786A1 (en) 2010-03-03
EP2159786B1 EP2159786B1 (en) 2013-06-05

Family

ID=40592098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09168240.1A Revoked EP2159786B1 (en) 2008-08-25 2009-08-20 Soundproofing assembly with a thin film for an automobile vehicle, and associated automobile vehicle

Country Status (5)

Country Link
EP (1) EP2159786B1 (en)
JP (1) JP2010076756A (en)
ES (1) ES2426392T3 (en)
FR (1) FR2935190B1 (en)
PL (1) PL2159786T3 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2365483A1 (en) * 2010-03-09 2011-09-14 Rieter Technologies AG Automotive insulating trim part
US20120037447A1 (en) * 2009-02-20 2012-02-16 Faurecia Automotive Industrie Soundproofing asssembly for an automobile, and associated wall element
US8256572B2 (en) 2010-03-09 2012-09-04 Autoneum Management Ag Automotive insulating trim part
WO2012119654A1 (en) * 2011-03-09 2012-09-13 Autoneum Management Ag Automotive noise attenuating trim part
CN102892631A (en) * 2010-03-09 2013-01-23 欧拓管理公司 Automotive trim part for sound insulation and absorption
EP2549474A1 (en) * 2011-07-18 2013-01-23 Centre D'etude Et De Recherche Pour L'automobile (Cera) Acoustic protection shield for a motor vehicle
FR2979308A1 (en) * 2011-08-24 2013-03-01 Faurecia Automotive Ind SOUND SYSTEM, IN PARTICULAR FOR A MOTOR VEHICLE
FR2982559A1 (en) * 2011-11-14 2013-05-17 Cera THIN-PROTECTIVE DEVICE FOR ACOUSTIC PROTECTION TO BE PROVIDED AGAINST AN ELECTRIC MOTOR HOUSING WALL FOR A MOTOR VEHICLE
US10040489B2 (en) 2014-04-29 2018-08-07 Autoneum Management Ag Alternative exterior trim part
US10081396B2 (en) 2014-04-29 2018-09-25 Autoneum Management Ag Exterior trim part
FR3079181A1 (en) * 2018-03-22 2019-09-27 Faurecia Automotive Industrie MOTOR VEHICLE SOUND SYSTEM AND METHOD OF MANUFACTURING THE SAME
FR3094934A1 (en) * 2019-04-12 2020-10-16 Treves Products, Services & Innovation Acoustic protection screen for motor vehicle engine compartment
US11600254B2 (en) 2016-11-17 2023-03-07 Autoneum Management Ag Acoustic foam decoupler

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012162112A (en) * 2011-02-03 2012-08-30 Hirotani:Kk Vehicular sound insulating material and method for manufacturing the same
FR2986207B1 (en) * 2012-01-26 2014-02-21 Faurecia Automotive Ind MOTOR VEHICLE EQUIPMENT PIECE AND ASSOCIATED MOTOR VEHICLE

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384420B1 (en) * 1989-02-23 1993-06-16 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Floor covering for vehicles and method for production of a floor covering
US6145617A (en) * 1996-10-29 2000-11-14 Rieter Automotive Ag Ultra-light, multifunctional sound-insulating kit
WO2003069596A1 (en) * 2002-02-11 2003-08-21 Faurecia Automotive Industrie Soundproofing assembly and a part comprising a wall which is covered with said assembly
EP1428656A1 (en) 2002-12-09 2004-06-16 Rieter Technologies A.G. Ultralight trim composite
US20040131836A1 (en) * 2003-01-02 2004-07-08 3M Innovative Properties Company Acoustic web
WO2006007275A1 (en) * 2004-07-01 2006-01-19 3M Innovative Properties Company Low thickness sound absorptive multilayer composite
US20080073146A1 (en) * 2003-01-02 2008-03-27 3M Innovative Properties Company Sound absorptive multilayer composite

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3314506B2 (en) * 1994-01-27 2002-08-12 日産自動車株式会社 Automotive sound insulating material and method of manufacturing the same
JPH10121598A (en) * 1996-10-16 1998-05-12 Matsushita Electric Works Ltd Sound absorption material and its manufacture
ATE224300T2 (en) * 1996-11-26 2002-10-15 Saint Gobain USE OF A COMPOSITE GLASS PANE FOR INSULATING VIBRATIONS CONDUCTED BY SOLID BODY IN A VEHICLE
JP2002073036A (en) * 2000-09-04 2002-03-12 Nissan Motor Co Ltd Sound absorbing and insulating structure
JP4251602B2 (en) * 2002-04-11 2009-04-08 株式会社林技術研究所 Automotive interior laying material
JP4187572B2 (en) * 2003-04-03 2008-11-26 株式会社林技術研究所 Automotive interior materials
JP2005178642A (en) * 2003-12-22 2005-07-07 Isuzu Motors Ltd Heat-resistant sound absorbing member
JP4691388B2 (en) * 2004-04-28 2011-06-01 株式会社タケヒロ Ultralight soundproof material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0384420B1 (en) * 1989-02-23 1993-06-16 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Floor covering for vehicles and method for production of a floor covering
US6145617A (en) * 1996-10-29 2000-11-14 Rieter Automotive Ag Ultra-light, multifunctional sound-insulating kit
WO2003069596A1 (en) * 2002-02-11 2003-08-21 Faurecia Automotive Industrie Soundproofing assembly and a part comprising a wall which is covered with said assembly
EP1428656A1 (en) 2002-12-09 2004-06-16 Rieter Technologies A.G. Ultralight trim composite
US20040131836A1 (en) * 2003-01-02 2004-07-08 3M Innovative Properties Company Acoustic web
US20080073146A1 (en) * 2003-01-02 2008-03-27 3M Innovative Properties Company Sound absorptive multilayer composite
WO2006007275A1 (en) * 2004-07-01 2006-01-19 3M Innovative Properties Company Low thickness sound absorptive multilayer composite

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MICHEL HENRY, MESURES DES PARAMÈTRES CARACTÉRISANT UN MILIEU POREUX. ETUDE EXPÉRIMENTALE DU COMPORTEMENT ACOUSTIQUE DES MOUSSES AUX BASSES FRÉQUENCES, 3 October 1997 (1997-10-03)
MICHEL HENRY, MESURES DES PARAMÈTRES CARACTÉRISANT UN MILIEU POREUX. ETUDE EXPÉRIMENTALE DU COMPORTEMENT ACOUSTIQUE DES MOUSSES AUX BASSES FRÉQUENCES., 3 October 1997 (1997-10-03)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120037447A1 (en) * 2009-02-20 2012-02-16 Faurecia Automotive Industrie Soundproofing asssembly for an automobile, and associated wall element
US8695757B2 (en) * 2009-02-20 2014-04-15 Faurecia Automotive Industrie Soundproofing assembly for an automobile, and associated wall element
RU2564047C2 (en) * 2010-03-09 2015-09-27 Аутонойм Менеджмент Аг Insulating part of vehicle trim
EP2365483A1 (en) * 2010-03-09 2011-09-14 Rieter Technologies AG Automotive insulating trim part
US8261876B2 (en) 2010-03-09 2012-09-11 Autoneum Management Ag Automotive trim part for sound insulation and absorption
CN102892631B (en) * 2010-03-09 2015-09-30 欧拓管理公司 For the car trim of isolates sound and absorption
CN102792366A (en) * 2010-03-09 2012-11-21 欧拓管理公司 Automotive insulating trim part
CN102892631A (en) * 2010-03-09 2013-01-23 欧拓管理公司 Automotive trim part for sound insulation and absorption
US8636106B2 (en) 2010-03-09 2014-01-28 Rieter Technologies Ag Automotive trim part for sound insulation and absorption
CN102792366B (en) * 2010-03-09 2015-05-20 欧拓管理公司 Automotive insulating trim part
WO2011110588A1 (en) * 2010-03-09 2011-09-15 Rieter Technologies Ag Automotive insulating trim part
US8256572B2 (en) 2010-03-09 2012-09-04 Autoneum Management Ag Automotive insulating trim part
US8636105B2 (en) 2010-03-09 2014-01-28 Autoneum Management Ag Automotive insulating trim part
JP2013522094A (en) * 2010-03-09 2013-06-13 オートニアム マネジメント アクチエンゲゼルシャフト Sound insulation trim parts for automobiles
JP2013521190A (en) * 2010-03-09 2013-06-10 オートニアム マネジメント アクチエンゲゼルシャフト Automotive trim parts for sound insulation and sound absorption
CN103534750B (en) * 2011-03-09 2015-09-09 欧拓管理公司 Automobile noise decay decorative element
CN103534750A (en) * 2011-03-09 2014-01-22 欧拓管理公司 Automotive noise attenuating trim part
WO2012119654A1 (en) * 2011-03-09 2012-09-13 Autoneum Management Ag Automotive noise attenuating trim part
US8863897B2 (en) 2011-03-09 2014-10-21 Autoneum Management Ag Automotive noise attenuating trim part
EP2684187B1 (en) 2011-03-09 2015-05-13 Autoneum Management AG Automotive noise attenuating trim part
EP2549474A1 (en) * 2011-07-18 2013-01-23 Centre D'etude Et De Recherche Pour L'automobile (Cera) Acoustic protection shield for a motor vehicle
FR2978288A1 (en) * 2011-07-18 2013-01-25 Cera ACOUSTIC PROTECTION SCREEN FOR MOTOR VEHICLE
US20140332313A1 (en) * 2011-08-24 2014-11-13 Faurecia Automotive Industrie Soundproofing assembly, in particular for a motor vehicle
CN103782338B (en) * 2011-08-24 2016-06-01 佛吉亚汽车工业公司 Can specifically for the soundproofing member of automobile
WO2013026847A3 (en) * 2011-08-24 2013-06-06 Faurecia Automotive Industrie Soundproofing assembly, in particular for a motor vehicle
CN103782338A (en) * 2011-08-24 2014-05-07 佛吉亚汽车工业公司 Soundproofing assembly, in particular for a motor vehicle
FR2979308A1 (en) * 2011-08-24 2013-03-01 Faurecia Automotive Ind SOUND SYSTEM, IN PARTICULAR FOR A MOTOR VEHICLE
EP2748812B1 (en) 2011-08-24 2020-08-19 Faurecia Automotive Industrie Soundproofing assembly, in particular for a motor vehicle
RU2606651C2 (en) * 2011-08-24 2017-01-10 Форесья Отомотив Эндюстри Sound insulation system, in particular, for motor vehicle
US9133615B2 (en) 2011-08-24 2015-09-15 Faurecia Automotive Industrie Soundproofing assembly, in particular for a motor vehicle
WO2013072629A1 (en) * 2011-11-14 2013-05-23 Centre D'etude Et De Recherche Pour L'automobile (Cera) Thin acoustic protection device intended to be installed against a wall of an electric motor casing for a motor vehicle
FR2982559A1 (en) * 2011-11-14 2013-05-17 Cera THIN-PROTECTIVE DEVICE FOR ACOUSTIC PROTECTION TO BE PROVIDED AGAINST AN ELECTRIC MOTOR HOUSING WALL FOR A MOTOR VEHICLE
US10040489B2 (en) 2014-04-29 2018-08-07 Autoneum Management Ag Alternative exterior trim part
US10081396B2 (en) 2014-04-29 2018-09-25 Autoneum Management Ag Exterior trim part
US11600254B2 (en) 2016-11-17 2023-03-07 Autoneum Management Ag Acoustic foam decoupler
FR3079181A1 (en) * 2018-03-22 2019-09-27 Faurecia Automotive Industrie MOTOR VEHICLE SOUND SYSTEM AND METHOD OF MANUFACTURING THE SAME
FR3094934A1 (en) * 2019-04-12 2020-10-16 Treves Products, Services & Innovation Acoustic protection screen for motor vehicle engine compartment

Also Published As

Publication number Publication date
EP2159786B1 (en) 2013-06-05
JP2010076756A (en) 2010-04-08
FR2935190A1 (en) 2010-02-26
ES2426392T3 (en) 2013-10-23
PL2159786T3 (en) 2013-11-29
FR2935190B1 (en) 2011-04-22

Similar Documents

Publication Publication Date Title
EP2159786B1 (en) Soundproofing assembly with a thin film for an automobile vehicle, and associated automobile vehicle
EP2748812B1 (en) Soundproofing assembly, in particular for a motor vehicle
EP2398674B1 (en) Soundproofing assembly for an automobile, and associated wall element
EP2170576B1 (en) Moulded soundproofing component, and manufacturing method thereof
EP2212506B1 (en) Glazing having improved vibro-acoustic damping behaviour, method of manufacturing such glazing, and method of acoustic protection in a vehicle passenger compartment
FR2888386A1 (en) HIGH TORTUOSITY FOAM ASSEMBLY, AND APPLICATION THEREOF TO THE INSONORIZATION OF ENCLOSED SPACES
EP3530441A1 (en) Soundproofing part of a motor vehicle and associated manufacturing method
WO2016020505A1 (en) Method for producing an automotive equipment part and associated part
EP2210251B1 (en) Sound-proofing assembly having a porous decoration function
FR3078283A1 (en) METHOD FOR MANUFACTURING A MOTOR VEHICLE SOUND SYSTEM AND ASSOCIATED SOUND SYSTEM
EP1902904B1 (en) Soundproofing component for a structure having an air space between an outer element and a structural organ
WO2017042358A1 (en) Motor vehicle structural floor and associated method of manufacture
EP3043347A1 (en) Soundproofing trim panel, and aircraft
EP2419288B1 (en) Glass panel with improved vibroacoustic damping properties, method for manufacturing such a glass panel, and method for acoustic protection in a vehicle passenger compartment
FR3088235A1 (en) METHOD FOR MANUFACTURING A MOTOR VEHICLE SOUNDPROOFING ASSEMBLY AND ASSOCIATED SOUNDPROOFING ASSEMBLY
FR3031077A1 (en) STRUCTURING FLOOR OF A MOTOR VEHICLE, AND METHOD OF MANUFACTURING THE SAME
EP1470545B1 (en) Sealing and sound-proofing panel for a motor vehicle
EP3974260A1 (en) Soundproofing part of a motor vehicle and associated manufacturing method
FR3092517A1 (en) Mold for manufacturing a motor vehicle soundproofing assembly and associated manufacturing process
FR3130719A1 (en) Motor vehicle luggage compartment side trim assembly
FR3083496A1 (en) ACOUSTIC INSULATION WALL OF A VEHICLE
EP4197774A1 (en) Acoustic protection panel for a motor vehicle
FR3079181A1 (en) MOTOR VEHICLE SOUND SYSTEM AND METHOD OF MANUFACTURING THE SAME

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

17P Request for examination filed

Effective date: 20100804

17Q First examination report despatched

Effective date: 20100831

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 616066

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009016194

Country of ref document: DE

Effective date: 20130801

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 616066

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130605

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2426392

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20131023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130905

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130906

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130605

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130905

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131007

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131005

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26 Opposition filed

Opponent name: AUTONEUM MANAGEMENT AG

Effective date: 20140305

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602009016194

Country of ref document: DE

Effective date: 20140305

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130820

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20140819

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130605

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090820

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: RO

Payment date: 20150812

Year of fee payment: 7

R26 Opposition filed (corrected)

Opponent name: AUTONEUM MANAGEMENT AG

Effective date: 20140305

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20150722

Year of fee payment: 7

Ref country code: PL

Payment date: 20150729

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20150728

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160820

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160820

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20180720

Year of fee payment: 10

Ref country code: CZ

Payment date: 20180725

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190820

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190820

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20210729

Year of fee payment: 13

Ref country code: FR

Payment date: 20210722

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20210901

Year of fee payment: 13

Ref country code: DE

Payment date: 20210720

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R103

Ref document number: 602009016194

Country of ref document: DE

Ref country code: DE

Ref legal event code: R064

Ref document number: 602009016194

Country of ref document: DE

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

REG Reference to a national code

Ref country code: FI

Ref legal event code: MGE

27W Patent revoked

Effective date: 20211201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160820