EP1183437A1 - Partitioned wave-guide sound insulation glazing - Google Patents

Partitioned wave-guide sound insulation glazing

Info

Publication number
EP1183437A1
EP1183437A1 EP00938865A EP00938865A EP1183437A1 EP 1183437 A1 EP1183437 A1 EP 1183437A1 EP 00938865 A EP00938865 A EP 00938865A EP 00938865 A EP00938865 A EP 00938865A EP 1183437 A1 EP1183437 A1 EP 1183437A1
Authority
EP
European Patent Office
Prior art keywords
profiles
glazing
cavity
partition
waveguide
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
EP00938865A
Other languages
German (de)
French (fr)
Other versions
EP1183437B1 (en
Inventor
Béatrice MOTTELET
Marc Rehfeld
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.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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 Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP1183437A1 publication Critical patent/EP1183437A1/en
Application granted granted Critical
Publication of EP1183437B1 publication Critical patent/EP1183437B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
    • E06B3/6707—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased acoustical insulation
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B2003/7059—Specific frame characteristics
    • E06B2003/708—Specific frame characteristics insulated

Definitions

  • the present invention relates to the acoustic insulation of a glazing.
  • Insulating glass is commonly used in the building to improve the thermal insulation of premises.
  • Glazing generally comprises two sheets of glass associated by means of an intermediate frame which keeps them at a certain distance from one another by trapping between them a layer of air or gas.
  • the glass sheets may have a thickness of 4 mm and be separated by an air or gas gap generally between 6 and 24 mm.
  • these glazings have limited acoustic performance, notably lower than that of a monolithic glass of the same overall surface mass and, in particular, double glazing having two sheets of 4 mm have poor acoustic performance.
  • Various means are used in industry to improve the acoustic performance of these insulating glazing. The most common way is to increase the thickness of the glass sheets, but this technique has limited effectiveness and increases the weight of the glazing.
  • Another way is to increase the thickness of the air space, but the effect is only noticeable for air thicknesses of several centimeters, which prevents the production of sealed insulating glazing.
  • EP-0 100 701 discloses a glazing whose glass sheets are formed by special laminates incorporating particular polymer films. This type of glazing allows a very clear improvement compared to ordinary insulating glazing, but the cost price is also significantly higher.
  • Some publications have proposed glazings formed from monolithic glass sheets of standard thickness, outside of which are installed Helmhoitz resonators tuned to the resonance frequency of the air gap enclosed between the glass sheets with which they are connected. It is recalled that a Helmhoitz resonator is constituted by a cavity which communicates with the outside by a narrow orifice. When an acoustic pressure acts on said orifice, it tends to vibrate the mass of air contained in the cavity at a certain frequency which is a function of the dimensions of this cavity.
  • the Helmhoitz resonator is used to attenuate low frequency oscillations; its effectiveness is maximum around its frequency of acoustic resonance as well as its harmonics.
  • Patent DE 3,401,996 relates to a variant of the previous system applied to a glazing unit, which uses only one resonator of
  • a glazing which is provided at its periphery with a waveguide which communicates with the air gap by several orifices whose shape, section and position are determined so as to detune the acoustic and mechanical waves which arise respectively in the air space and on the glass sheets when the glazing is subjected to an incident sound field.
  • This waveguide is embodied by a single profile around the insulating glass, arranged along the sides of the intermediate frame, internally with respect to this frame, with holes preferably in the middle of the sides to ensure communication between the inside the waveguide and the air gap.
  • this waveguide is formed of several rectilinear profiles whose ends are not contiguous, thus providing additional communication passages between the interior of the waveguide and the air space.
  • the present invention aims to remedy the drawbacks of the prior techniques presented above and relates to an acoustic insulating glazing formed from two monolithic glass plates or others, with improved acoustic efficiency, reserving a significant view, with reduced bulk, easy to manufacture and at a cost hardly higher than that of conventional insulating glazing.
  • the invention is based on the observation that a glazing formed from two glass plates and which is subjected to incident acoustic excitation is the seat of several vibro-acoustic modes, but that one of the acoustic modes which carries the most energy from one plate to another is that in ⁇ / 2. So if we essentially attenuate this mode in ⁇ / 2, we eliminate most of the acoustic energy transmitted from one glass to another.
  • the invention relates to an acoustic insulating glazing of the type described in patent EP 0 579 542, that is to say formed from two glass plates separated by a peripheral intermediate frame, enclosing a cavity filled with gas, in particular most generally air, and having an internal waveguide, characterized in that this waveguide consists of at least one straight tubular section disposed at the periphery of the cavity, along one side of the glazing, this profile being provided with a transverse partition which closes it in the direction of its length, arranged at a place of this length which is a function of the acoustic mode which it is desired to attenuate.
  • each profile is provided with a transverse partition.
  • the position of the partition depends on the acoustic mode to be disorganized: it is placed substantially in the middle of the length of the profile to act on the ⁇ / 2 mode or one third to detune the acoustic mode in ⁇ / 3.
  • the central partition can be produced by any suitable means. It can come from manufacturing with the profile during the extrusion thereof or be carried out subsequently, in particular by fitting two profiles of lengths slightly less than half the length of one side of the glazing, on a connector-partition, that is to say equipped with a partition or, in particular in the case of thermoformable plastic profiles, by throttling the section and welding, or a partition can be slid and wedged inside the profile smooth.
  • the guide will then be formed for example of tubular profiles, smooth on the inside, in which pads of absorbent material are inserted and are positioned at the desired locations, in particular respectively in the middle of the length of each profile.
  • the principle of profiles fitted onto a connector which encloses a pad of absorbent material is also an advantageous practical solution.
  • the profiles forming the waveguide can be separated and in this case, their interior chambers defined on either side of the partition communicate with the glazing cavity through the open ends of the profiles which are opposite to the partition.
  • a frame is produced from a rectilinear hollow profile by folding it and holes are created in the corners of the frame, in its wall which is intended to be turned towards the cavity internal glazing.
  • FIG. 1 is a plan view of an acoustic insulating glazing according to a first embodiment of the invention, with a tearing halfway through the glazing;
  • Figure 2 is an enlarged sectional view along the line II-II of Figure 1;
  • Figure 3 is a sectional view similar to Figure 1 of an acoustic insulating glazing according to a second embodiment of the invention;
  • Figure 4 is a sectional view along line IV-IV of Figure 3;
  • Figures 5, 6 and 7 show in longitudinal section three embodiments of the central partition in a profile;
  • Figure 8 shows a bulkhead connector;
  • Figure 9 is a perspective view of a bracket for connecting the sections together;
  • FIG. 10 is a perspective view of a waveguide in the form of a rectangular frame produced by means of profiles assembled with the 5 brackets of FIG. 9 and the bulkhead connectors of FIG. 8.
  • the glazing 10 which is shown therein comprises, in a manner known per se, two sheets of glass 12, 14 interconnected over their entire periphery by a joint and seal assembly designated intermediate as a whole by the 0 reference 16 which keeps them separated by trapping between them a flat cavity 18 which may contain air and / or a gas.
  • This assembly 16 generally comprises a rigid profile 161 forming an intermediate frame glued to the sheets 12, 14.
  • the 16 ⁇ profile is provided, on each of its lateral faces in D in contact with the glass sheets, with a bonding and sealing bead 16 2 made of butyl rubber and a peripheral sealing joint I63 which sticks to the internal edges of the two glass sheets 12 and 14.
  • a waveguide is produced on the periphery of the latter, inside the assembly 16, 0 which communicates with the cavity 18 via orifices placed in appropriate places.
  • the waveguide consists of a plurality of straight tubular profiles 20, 22, 24, 26 which are glued to the two glass sheets and to the interior faces of the assembly 16. 5 These profiles have a rectangular section of the same height that the profiles forming intermediate frame 161, and are open at their ends. They include for example in the middle of their length, a middle partition 28 which defines on either side of it two chambers 30, 31. These sections are not contiguous, so that the chambers 30, 31 communicate with the cavity 18 through their open ends.
  • the waveguide can reduce the two wavelengths ⁇ / 2 and ⁇ 2/2, .lambda.i and ⁇ 2 being respectively equal to c / L and c / 1.
  • the efficiency of the waveguide can be increased by inserting into the interior chambers 30, 31 an acoustically absorbent material 32.
  • a desiccant 34 is advantageously placed in the profiles forming a frame. interlayer 16 ⁇ , holes 36 drilled in these profiles 16. and ending inside the profiles 20, 22, 24, 26 of the waveguide, putting this desiccant 34 in communication with the air in the cavity 18, by 1 intermediate waveguide profiles 20, 22, 24, 26.
  • FIGS. 3 and 4 differs from the previous one only in that the rectilinear tubular profiles 20, 22, 24, 26 of the waveguide act simultaneously as profiles of the rigid intermediate frame 16. serving keep the two glass sheets spaced apart.
  • the production of the glazing is simpler, and the clear view of said glazing is increased.
  • the butyl rubber beads I62 which establish the seal with the glass sheets, are deposited on the lateral edges of the profiles of the waveguide and the desiccant 34, as well as possibly the acoustic absorbent 32 are arranged inside these profiles.
  • the lateral sides of the tubular profiles 20, 22, 24, 26 are provided with longitudinal grooves 33 situated between the butyl rubber cords 16 2 and the cavity 18. These grooves are suitable for serving as a reservoir safety for butyl rubber or in general the adhesive sealant which could migrate towards the clear view of the cavity 18 under the effect of gravity, temperature or vibrations.
  • the partition can be produced in different ways, for example, it can be constituted by a throttle 38 obtained by crushing two opposite walls of the profile ( Figure 5) or a single wall of the profile ( Figure 6). This is particularly practical when the profiles 20, 22, 24, 26 are made of thermoplastic material; then the profile is crushed and heat sealed.
  • the partition may also be constituted by a pad 39 with a high acoustic absorption power (FIG. 7).
  • the partition can also be produced using a connector-partition 40 as shown in FIG. 8.
  • This connector consists of a section of tubular section 41 of short length, for example approximately 2 to 5 cm, of cross-section slightly lower than that of the sections 20, 22, 24, 26 of the waveguide, but of the same shape, so as to be able to fit into the latter. It is provided in the middle of its length with a partition 28 and on its periphery, for example directly above the partition 28, with a rib 42 in relief relative to its surface and having a height equal to the thickness of the walls of the profiles 20, 22, 24, 26.
  • two half-lengths of profiles fitted on this connector will simply constitute a waveguide profile with a smooth outer surface, with a partition 28.
  • the sound absorbent can also be placed in this connector 40, on each side of the partition 28.
  • the partition connector shown in FIG. 8 has longitudinal grooves 43 intended to receive the ribs 37 which protrude inside the profiles 20 , 22, 24, 26.
  • Figure 9 shows in perspective a bracket 50 used to assemble the profiles 20, 22, 24, 26 to facilitate their installation inside the double glazing, and in particular to ensure the continuity and solidarity of the interlayer frame of the double glazing insofar as, as shown in FIGS. 3 and 4, the sections 20, 22, 24, 26 also act as an intermediate frame 16 ⁇ .
  • Each bracket 50 comprises a central body 51 and two wings 53, 55 having the same external section as that of the profiles.
  • the wings end with end caps 56, 58 of reduced section so as to be able to fit inside the ends of the profiles.
  • the brackets have windows 54 in their inner corner which communicate the interior of the waveguide with the cavity 18.
  • the manufacture of the acoustic insulating glazing of FIG. 3 is done as follows: one begins by constituting the four sections 20, 22, 24, 26 by means of the wall connectors 40 and portions of tubular sections which are fitted to the latter. In the four sections 20, 22, 24, 26 thus formed, the absorbent 32 and the desiccant 34 are introduced, then the sections are assembled by means of brackets 50 to obtain the frame shown in FIG. 10. The length of the sections will be chosen according to the glazing dimensions that we want to manufacture. Next, cords I62 of butyl rubber are deposited on the lateral faces of the intermediate frame thus formed, then two sheets of glass 12, 14 are bonded to the intermediate frame. Next, a watertight plastic bead I63 is injected into the groove which forms at the periphery of the glazing.
  • the waveguide can also be produced on demand, in one piece with the desired dimensions, for example by folding a long tubular profile according to the shape and dimensions of the glazing to be formed and by welding or otherwise assembling the two ends of the frame thus produced.
  • the partitions 28 will be produced by one of the methods described above, for example by introducing inside the profiled, before folding, four absorbent pads which are positioned so that, after folding, they are in the middle of the four sides of the guide, or even, in particular when it is thermoplastic profiles, by crushing the profile at places and by heat sealing.
  • the sections 20, 22, 24, 26 are formed, for example, using tubes and bulkhead connectors. A bead of butyl rubber is then deposited on the lateral faces of each profile 20, 22, 24 and 26 thus formed.
  • thermoforming profiles are then deposited inside a glazing during manufacture and already having its lower glass sheet 12 and its rigid intermediate frame 16., bonded to this sheet 12.
  • the profiles 20, 22, 24, 26 being in place, juxtaposed on the different sides of the intermediate frame, the glazing is closed by placing the second glass sheet 14.
  • Such glazings according to the invention are particularly effective for air knives 16 to 24 mm high.

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Special Wing (AREA)
  • Building Environments (AREA)
  • Glass Compositions (AREA)
  • Aerials With Secondary Devices (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

The invention relates to an acoustic insulating glazing unit.This glazing unit comprises two glass sheets (12, 14) joined together around their periphery by means of an assembly (16) forming a seal (163) and an insert frame (161) which defines, with the two glass sheets, a flat cavity filled with a gas, and a waveguide fastened between the glass sheets, internal to the insert frame. The waveguide consists of at least one straight tubular section (20, 22, 24, 26) placed on the periphery of the gas-filled cavity along one side of the glazing unit, this section being provided with a transverse partition (28) which closes the latter in its length direction, the said partition being placed at a length position along the section which depends on the acoustic mode of the cavity that it is desired to disorganize, this partition defining, on either side of it, two chambers (30, 31) which communicate with the cavity through the ends of the sections.

Description

VITRAGE ISOLANT ACOUSTIQUE A GUIDE D'ONDE CLOISONNE. ACOUSTIC INSULATING GLASS WITH PARTITIONED WAVEGUIDE.
La présente invention concerne l'isolation acoustique d'un vitrage. On utilise couramment dans le bâtiment des vitrages isolants pour améliorer l'isolation thermique des locaux. Les vitrages comprennent généralement deux feuilles de verre associées au moyen d'un cadre intercalaire qui les maintient à une certaine distance l'une de l'autre en emprisonnant entre elles une lame d'air ou de gaz. Par exemple, les feuilles de verre peuvent avoir une épaisseur de 4 mm et être séparées par un intervalle d'air ou de gaz en général compris entre 6 et 24 mm. Toutefois, tels qu'ils sont, ces vitrages ont des performances acoustiques limitées, notablement inférieures à celles d'un verre monolithique de même masse surfacique globale et, en particulier, les doubles vitrages ayant deux feuilles de 4 mm ont des performances acoustiques médiocres. Différents moyens sont utilisés dans l'industrie pour améliorer les performances acoustiques de ces vitrages isolants. Le moyen le plus courant consiste à augmenter l'épaisseur des feuilles de verre, mais cette technique a une efficacité limitée et accroît le poids du vitrage.The present invention relates to the acoustic insulation of a glazing. Insulating glass is commonly used in the building to improve the thermal insulation of premises. Glazing generally comprises two sheets of glass associated by means of an intermediate frame which keeps them at a certain distance from one another by trapping between them a layer of air or gas. For example, the glass sheets may have a thickness of 4 mm and be separated by an air or gas gap generally between 6 and 24 mm. However, as they are, these glazings have limited acoustic performance, notably lower than that of a monolithic glass of the same overall surface mass and, in particular, double glazing having two sheets of 4 mm have poor acoustic performance. Various means are used in industry to improve the acoustic performance of these insulating glazing. The most common way is to increase the thickness of the glass sheets, but this technique has limited effectiveness and increases the weight of the glazing.
Un autre moyen consiste à accroître l'épaisseur de la lame d'air, mais l'effet n'est sensible que pour des épaisseurs d'air de plusieurs centimètres, ce qui interdit de réaliser des vitrages isolants scellés.Another way is to increase the thickness of the air space, but the effect is only noticeable for air thicknesses of several centimeters, which prevents the production of sealed insulating glazing.
Par le brevet EP-0 100 701 on connaît un vitrage dont les feuilles de verre sont constituées par des feuilletés spéciaux incorporant des films polymères particuliers. Ce type de vitrage permet une très nette amélioration par rapport au vitrage isolant ordinaire, mais le prix de revient en est également sensiblement supérieur.EP-0 100 701 discloses a glazing whose glass sheets are formed by special laminates incorporating particular polymer films. This type of glazing allows a very clear improvement compared to ordinary insulating glazing, but the cost price is also significantly higher.
Certaines publications ont proposé des vitrages formés de feuilles de verre monolithiques d'épaisseur standard, à l'extérieur desquels sont installés des résonateurs de Helmhoitz accordés sur la fréquence de résonance de la lame d'air enfermée entre les feuilles de verre avec lesquelles ils sont reliés. On rappelle qu'un résonateur de Helmhoitz est constitué par une cavité qui communique avec l'extérieur par un orifice étroit. Lorsqu'une pression acoustique agit sur ledit orifice, elle tend à faire vibrer la masse d'air contenue dans la cavité à une certaine fréquence qui est fonction des dimensions de cette cavité. Le résonateur de Helmhoitz est utilisé pour atténuer les oscillations basses fréquences ; son efficacité est maximale autour de sa fréquence de résonance acoustique ainsi que de ses harmoniques.Some publications have proposed glazings formed from monolithic glass sheets of standard thickness, outside of which are installed Helmhoitz resonators tuned to the resonance frequency of the air gap enclosed between the glass sheets with which they are connected. It is recalled that a Helmhoitz resonator is constituted by a cavity which communicates with the outside by a narrow orifice. When an acoustic pressure acts on said orifice, it tends to vibrate the mass of air contained in the cavity at a certain frequency which is a function of the dimensions of this cavity. The Helmhoitz resonator is used to attenuate low frequency oscillations; its effectiveness is maximum around its frequency of acoustic resonance as well as its harmonics.
Un exemple de cette technique est décrit dans la demande de brevet WO-A-85 02640. Celle-ci concerne un caisson muni de résonateurs de Helmhoitz sphériques situés à l'extérieur du caisson et en communication avec sa cavité interne par des conduits de faible section. Toutefois, ce système est tout à fait inadapté aux vitrages isolants car la réalisation de résonateurs sphériques extérieurs est coûteuse et difficile à mettre en œuvre. De plus, ces résonateurs sont relativement volumineux par rapport au volume de la lame d'air du vitrage et conduiraient donc à un ensemble de dimensions importantes.An example of this technique is described in patent application WO-A-85 02640. This relates to a box provided with spherical Helmhoitz resonators located outside the box and in communication with its internal cavity by weak conduits section. However, this system is completely unsuitable for insulating glazing since the production of external spherical resonators is expensive and difficult to implement. In addition, these resonators are relatively bulky compared to the volume of the air gap of the glazing and would therefore lead to a set of large dimensions.
Le brevet DE 3 401 996 concerne une variante du système précédent appliquée à un vitrage, qui n'utilise qu'un seul résonateur dePatent DE 3,401,996 relates to a variant of the previous system applied to a glazing unit, which uses only one resonator of
Helmhoitz, toujours à l'extérieur du vitrage, monté à sa périphérie et dont la cavité communique avec la lame d'air par l'intermédiaire d'une fente continue, mais ce système présente le même défaut que le précédent.Helmhoitz, still outside the glazing, mounted on its periphery and whose cavity communicates with the air gap by means of a continuous slot, but this system has the same defect as the previous one.
Par le brevet EP 0 579 542 enfin on connaît un vitrage muni à sa périphérie d'un guide d'onde qui communique avec la lame d'air par plusieurs orifices dont la forme, la section et la position sont déterminées de manière à désaccorder les ondes acoustiques et mécaniques qui naissent respectivement dans la lame d'air et sur les feuilles de verre lorsque le vitrage est soumis à un champ acoustique incident.By patent EP 0 579 542, finally, a glazing is known which is provided at its periphery with a waveguide which communicates with the air gap by several orifices whose shape, section and position are determined so as to detune the acoustic and mechanical waves which arise respectively in the air space and on the glass sheets when the glazing is subjected to an incident sound field.
Ce guide d'onde est matérialisé par un profilé unique faisant le tour du vitrage isolant, disposé le long des côtés du cadre intercalaire, intérieurement par rapport à ce cadre, avec des trous de préférence au milieu des côtés pour assurer la communication entre l'intérieur du guide d'onde et la lame d'air. Dans une autre variante, ce guide d'onde est formé de plusieurs profilés rectilignes dont les extrémités ne sont pas jointives, ménageant ainsi des passages de communication supplémentaires entre l'intérieur du guide d'onde et la lame d'air.This waveguide is embodied by a single profile around the insulating glass, arranged along the sides of the intermediate frame, internally with respect to this frame, with holes preferably in the middle of the sides to ensure communication between the inside the waveguide and the air gap. In another variant, this waveguide is formed of several rectilinear profiles whose ends are not contiguous, thus providing additional communication passages between the interior of the waveguide and the air space.
Quelle que soit la variante de réalisation, la performance acoustique est assez limitée et la mise en place du ou des profilés de guide d'onde est compliquée. La présente invention vise à remédier aux inconvénients des techniques antérieures présentées ci-dessus et a pour objet un vitrage isolant acoustique formé de deux plaques de verre monolithiques ou autres, à efficacité acoustique améliorée, réservant un clair de vue important, à encombrement réduit, facile à fabriquer et pour un coût à peine supérieur à celui des vitrages isolants classiques.Whatever the variant, the acoustic performance is quite limited and the positioning of the waveguide profile (s) is complicated. The present invention aims to remedy the drawbacks of the prior techniques presented above and relates to an acoustic insulating glazing formed from two monolithic glass plates or others, with improved acoustic efficiency, reserving a significant view, with reduced bulk, easy to manufacture and at a cost hardly higher than that of conventional insulating glazing.
L'invention est basée sur la constatation qu'un vitrage formé de deux plaques de verre et qui est soumis à une excitation acoustique incidente est le siège de plusieurs modes vibro-acoustiques, mais qu'un des modes acoustiques qui véhicule le plus d'énergie d'une plaque à l'autre est celui en λ/2. Si donc on atténue essentiellement ce mode en λ/2, on élimine la plus grande partie de l'énergie acoustique transmise d'un verre à l'autre.The invention is based on the observation that a glazing formed from two glass plates and which is subjected to incident acoustic excitation is the seat of several vibro-acoustic modes, but that one of the acoustic modes which carries the most energy from one plate to another is that in λ / 2. So if we essentially attenuate this mode in λ / 2, we eliminate most of the acoustic energy transmitted from one glass to another.
L'invention concerne un vitrage isolant acoustique du type décrit dans le brevet EP 0 579 542, c'est-à-dire formé de deux plaques de verre séparées par un cadre intercalaire périphérique, enfermant une cavité remplie de gaz, notamment le plus généralement de l'air, et possédant un guide d'onde intérieur, caractérisé en ce que ce guide d'onde est constitué d'au moins un profilé tubulaire rectiligne disposé à la périphérie de la cavité, le long d'un côté du vitrage, ce profilé étant pourvu d'une cloison transversale qui le ferme dans la direction de sa longueur, disposée à un endroit de cette longueur qui est fonction du mode acoustique que l'on souhaite atténuer.The invention relates to an acoustic insulating glazing of the type described in patent EP 0 579 542, that is to say formed from two glass plates separated by a peripheral intermediate frame, enclosing a cavity filled with gas, in particular most generally air, and having an internal waveguide, characterized in that this waveguide consists of at least one straight tubular section disposed at the periphery of the cavity, along one side of the glazing, this profile being provided with a transverse partition which closes it in the direction of its length, arranged at a place of this length which is a function of the acoustic mode which it is desired to attenuate.
On associe ainsi au vitrage un double résonateur de Helmhoitz tubulaire accordé sur la longueur d'onde du mode acoustique que l'on veut essentiellement désorganiser, par exemple λ/2 si l'on veut désorganiser ce mode vibratoire, ou λ/i (i étant un nombre entier) si l'on veut désorganiser cet autre mode vibratoire. On sait que λ est donne par la formule λ=c/l où ç est la célérité du son dans la cavité interne du vitrage et 1 est la longueur du résonateur de Helmhoitz tubulaire, fonction de la position de la cloison.We thus associate with the glazing a double tubular Helmhoitz resonator tuned on the wavelength of the acoustic mode that we want to essentially disorganize, for example λ / 2 if we want to disorganize this vibratory mode, or λ / i (i being a whole number) if we want to disorganize this other vibratory mode. We know that λ is given by the formula λ = c / l where ç is the speed of sound in the internal cavity of the glazing and 1 is the length of the tubular Helmhoitz resonator, depending on the position of the partition.
Avantageusement, pour une meilleure efficacité, on dispose quatre profilés dans la cavité, à la périphérie d'un vitrage isolant rectangulaire, le long des côtés dudit vitrage, chaque profilé étant pourvu d'une cloison transversale.Advantageously, for better efficiency, there are four profiles in the cavity, at the periphery of a rectangular insulating glazing, along the sides of said glazing, each profile being provided with a transverse partition.
La position de la cloison dépend du mode acoustique à désorganiser : elle est placée sensiblement au milieu de la longueur du profilé pour agir sur le mode en λ/2 ou au tiers pour désaccorder le mode acoustique en λ/3.The position of the partition depends on the acoustic mode to be disorganized: it is placed substantially in the middle of the length of the profile to act on the λ / 2 mode or one third to detune the acoustic mode in λ / 3.
La cloison médiane peut être réalisée par tout moyen approprié. Elle peut venir de fabrication avec le profilé lors de l'extrusion de celui- ci ou être réalisée ultérieurement, notamment par emboîtement de deux profilés de longueurs légèrement inférieures à la demi-longueur d'un côté du vitrage, sur un connecteur-cloison, c'est-à-dire équipé d'une cloison ou encore, en particulier dans le cas de profilés en matière plastique thermoformables, par étranglement de la section et soudure, ou encore une cloison peut être glissée et calée à l'intérieur du profilé lisse.The central partition can be produced by any suitable means. It can come from manufacturing with the profile during the extrusion thereof or be carried out subsequently, in particular by fitting two profiles of lengths slightly less than half the length of one side of the glazing, on a connector-partition, that is to say equipped with a partition or, in particular in the case of thermoformable plastic profiles, by throttling the section and welding, or a partition can be slid and wedged inside the profile smooth.
D'autre part, il est possible d'insérer à l'intérieur des guides d'onde une matière absorbante afin d'en améliorer les performances acoustiques. Il est alors judicieux d'utiliser cet absorbant à la place d'une cloison et de lui faire jouer le rôle de cloison. Le guide sera alors formé par exemple de profilés tubulaires, lisses intérieurement, dans lesquels des tampons de matière absorbante sont insérés et sont positionnés aux endroits voulus, notamment respectivement au milieu de la longueur de chaque profilé.On the other hand, it is possible to insert inside the waveguides an absorbent material in order to improve its acoustic performance. It is therefore advisable to use this absorbent instead of a partition and to make it play the role of partition. The guide will then be formed for example of tubular profiles, smooth on the inside, in which pads of absorbent material are inserted and are positioned at the desired locations, in particular respectively in the middle of the length of each profile.
Le principe de profilés emboîtés sur un connecteur qui renferme un tampon de matière absorbante est également une solution pratique intéressante. Les profilés formant le guide d'onde peuvent être disjoints et dans ce cas, leurs chambres intérieures définies de part et d'autre de la cloison communiquent avec la cavité du vitrage à travers les extrémités ouvertes des profilés qui sont opposées à la cloison.The principle of profiles fitted onto a connector which encloses a pad of absorbent material is also an advantageous practical solution. The profiles forming the waveguide can be separated and in this case, their interior chambers defined on either side of the partition communicate with the glazing cavity through the open ends of the profiles which are opposite to the partition.
Ils peuvent également être assemblés au moyen d'équerres tubulaires dont les ailes s'emboîtent dans les extrémités des profilés, un orifice étant prévu dans les équerres ou dans la paroi en regard des profilés, pour faire communiquer l'espace intérieur des profilés avec la cavité du vitrage, au niveau des angles du vitrage.They can also be assembled by means of tubular brackets, the wings of which fit into the ends of the profiles, an orifice being provided in the brackets or in the wall opposite the profiles, to make the interior space of the profiles communicate with the glazing cavity, at the corners of the glazing.
Dans une autre variante de réalisation, on réalise un cadre à partir d'un profilé creux rectiligne par pliage de celui-ci et l'on crée des orifices dans les angles du cadre, dans sa paroi qui est destinée à être tournée vers la cavité interne du vitrage.In another alternative embodiment, a frame is produced from a rectilinear hollow profile by folding it and holes are created in the corners of the frame, in its wall which is intended to be turned towards the cavity internal glazing.
L'invention sera mieux comprise à la lecture de la description de quelques modes de réalisation, qui sera faite en regard des dessins annexés dans lesquels : la figure 1 est une vue en plan d'un vitrage isolant acoustique selon un premier mode de réalisation de l'invention, avec un arrachement à mi-épaisseur du vitrage ; la figure 2 est une vue en coupe à plus grande échelle suivant la ligne II-II de la figure 1 ; la figure 3 est une vue en coupe analogue à la figure 1 d'un vitrage isolant acoustique selon un second mode de réalisation de l'invention ; la figure 4 est une vue en coupe suivant la ligne IV-IV de la figure 3 ; les figures 5, 6 et 7 montrent en coupe longitudinale trois modes de réalisation de la cloison médiane dans un profilé ; la figure 8 montre un connecteur-cloison ; la figure 9 est une vue en perspective d'une équerre servant à relier les profilés entre eux ; et la figure 10 est une vue en perspective d'un guide d'onde en forme de cadre rectangulaire réalisé au moyen de profilés assemblés avec les 5 équerres de la figure 9 et les connecteurs-cloisons de la figure 8.The invention will be better understood on reading the description of some embodiments, which will be made with reference to the accompanying drawings in which: FIG. 1 is a plan view of an acoustic insulating glazing according to a first embodiment of the invention, with a tearing halfway through the glazing; Figure 2 is an enlarged sectional view along the line II-II of Figure 1; Figure 3 is a sectional view similar to Figure 1 of an acoustic insulating glazing according to a second embodiment of the invention; Figure 4 is a sectional view along line IV-IV of Figure 3; Figures 5, 6 and 7 show in longitudinal section three embodiments of the central partition in a profile; Figure 8 shows a bulkhead connector; Figure 9 is a perspective view of a bracket for connecting the sections together; and FIG. 10 is a perspective view of a waveguide in the form of a rectangular frame produced by means of profiles assembled with the 5 brackets of FIG. 9 and the bulkhead connectors of FIG. 8.
Avec référence tout d'abord aux figures 1 et 2, le vitrage 10 qui y est représenté comprend, de façon connue en soi, deux feuilles de verre 12, 14 reliées entre elles sur toute leur périphérie par un ensemble joint et cadre étanche intercalaire désigné dans son ensemble par la 0 référence 16 qui les maintient séparées en emprisonnant entre elles une cavité plate 18 pouvant contenir de l'air et/ou un gaz. Cet ensemble 16 comprend généralement un profilé rigide 161 formant cadre intercalaire collé aux feuilles 12, 14.With reference first to Figures 1 and 2, the glazing 10 which is shown therein comprises, in a manner known per se, two sheets of glass 12, 14 interconnected over their entire periphery by a joint and seal assembly designated intermediate as a whole by the 0 reference 16 which keeps them separated by trapping between them a flat cavity 18 which may contain air and / or a gas. This assembly 16 generally comprises a rigid profile 161 forming an intermediate frame glued to the sheets 12, 14.
Le profilé 16ι est muni, sur chacune de ses faces latérales en D contact avec les feuilles de verre, d'un cordon de collage et d'étanchéité 162 en caoutchouc butyl et d'un joint de scellement périphérique I63 qui colle aux bords internes des deux feuilles de verre 12 et 14.The 16ι profile is provided, on each of its lateral faces in D in contact with the glass sheets, with a bonding and sealing bead 16 2 made of butyl rubber and a peripheral sealing joint I63 which sticks to the internal edges of the two glass sheets 12 and 14.
Selon l'invention, pour augmenter l'isolation acoustique du vitrage, on réalise à la périphérie de ce dernier, à l'intérieur de l'ensemble 16, 0 un guide d'onde qui communique avec la cavité 18 par l'intermédiaire d'orifices placés à des endroits appropriés. Le guide d'onde est constitué d'une pluralité de profilés tubulaires rectilignes 20, 22, 24, 26 qui sont collés aux deux feuilles de verre et aux faces intérieures de l'ensemble 16. 5 Ces profilés ont une section rectangulaire de même hauteur que les profilés formant cadre intercalaire 161, et sont ouverts à leurs extrémités. Ils comportent par exemple au milieu de leur longueur, une cloison médiane 28 qui définit de part et d'autre d'elle deux chambres 30, 31. Ces profilés ne sont pas jointifs, de sorte que les chambres 30, 31 communiquent avec la cavité 18 à travers leurs extrémités ouvertes. Comme on l'a expliqué précédemment, de tels profilés avec cloisons au milieu de leur longueur se comportent comme autant de résonateurs de Helmhoitz qui ont pour propriété de désorganiser le mode acoustique en λ/2, qui véhicule la majorité de l'énergie du champ acoustique incident.According to the invention, to increase the acoustic insulation of the glazing, a waveguide is produced on the periphery of the latter, inside the assembly 16, 0 which communicates with the cavity 18 via orifices placed in appropriate places. The waveguide consists of a plurality of straight tubular profiles 20, 22, 24, 26 which are glued to the two glass sheets and to the interior faces of the assembly 16. 5 These profiles have a rectangular section of the same height that the profiles forming intermediate frame 161, and are open at their ends. They include for example in the middle of their length, a middle partition 28 which defines on either side of it two chambers 30, 31. These sections are not contiguous, so that the chambers 30, 31 communicate with the cavity 18 through their open ends. As explained above, such profiles with partitions in the middle of their length behave like so many Helmhoitz resonators which have the property of disorganizing the acoustic mode in λ / 2, which carries the majority of the field energy incident acoustics.
Il est clair que dans le cas du vitrage rectangulaire de la figure 1 qui utilise deux paires de profilés de longueurs respectives L et 1, le guide d'onde pourra atténuer les deux longueurs d'onde λι/2 et λ2/2, λi et λ2 étant respectivement égaux à c/L et c/1.It is clear that in the case of the rectangular windows of Figure 1 which uses two pairs of respective lengths of profile 1 and L, the waveguide can reduce the two wavelengths λι / 2 and λ 2/2, .lambda.i and λ 2 being respectively equal to c / L and c / 1.
Dans les cas où l'on veut désorganiser d'autres modes acoustiques, par exemple λ/ 3, c'est à d'autres endroits de la longueur des profilés que l'on place la cloison 28, par exemple au tiers de la longueur des profilés 20, 22, 24, 26.In the cases where one wants to disorganize other acoustic modes, for example λ / 3, it is at other places of the length of the profiles that the partition 28 is placed, for example at a third of the length profiles 20, 22, 24, 26.
L'efficacité du guide d'onde peut être augmentée en insérant dans les chambres intérieures 30, 31 une matière acoustiquement absorbante 32. Ainsi qu'il est connu dans le domaine des vitrages isolants, un desséchant 34 est avantageusement disposé dans les profilés formant cadre intercalaire 16ι , des trous 36 percés dans ces profilés 16. et aboutissant à l'intérieur des profilés 20, 22, 24, 26 du guide d'onde, mettant ce desséchant 34 en communication avec l'air de la cavité 18, par 1 intermédiaire des profilés de guide d'onde 20, 22, 24, 26.The efficiency of the waveguide can be increased by inserting into the interior chambers 30, 31 an acoustically absorbent material 32. As is known in the field of insulating glazing, a desiccant 34 is advantageously placed in the profiles forming a frame. interlayer 16ι, holes 36 drilled in these profiles 16. and ending inside the profiles 20, 22, 24, 26 of the waveguide, putting this desiccant 34 in communication with the air in the cavity 18, by 1 intermediate waveguide profiles 20, 22, 24, 26.
Le mode de réalisation illustré par les figures 3 et 4 ne diffère du précédent que par le fait que les profilés tubulaires rectilignes 20, 22, 24, 26 du guide d'onde font en même temps office de profilés du cadre intercalaire rigide 16. servant à maintenir espacées les deux feuilles de verre. Ainsi, la réalisation du vitrage est plus simple, et le clair de vue dudit vitrage est augmenté.The embodiment illustrated in FIGS. 3 and 4 differs from the previous one only in that the rectilinear tubular profiles 20, 22, 24, 26 of the waveguide act simultaneously as profiles of the rigid intermediate frame 16. serving keep the two glass sheets spaced apart. Thus, the production of the glazing is simpler, and the clear view of said glazing is increased.
Dans ce mode de réalisation, comme cela est plus particulièrement visible sur la figure 4, les cordons de caoutchouc butyl I62 qui établissent l'étanchéité avec les feuilles de verre, sont déposés sur les bords latéraux des profilés du guide d'onde et le desséchant 34, ainsi qu'éventuellement l'absorbant acoustique 32 sont disposés à l'intérieur de ces profilés. Avantageusement, comme le montre la figure 4, les côtés latéraux des profilés tubulaires 20, 22, 24, 26 sont munis de rainures longitudinales 33 situées entre les cordons de caoutchouc butyl 162 et la cavité 18. Ces rainures sont aptes à servir de réservoir de sécurité pour le caoutchouc butyl ou en général le mastic de collage qui pourrait migrer vers le clair de vue de la cavité 18 sous l'effet de la gravité, de la température ou des vibrations.In this embodiment, as is more particularly visible in FIG. 4, the butyl rubber beads I62 which establish the seal with the glass sheets, are deposited on the lateral edges of the profiles of the waveguide and the desiccant 34, as well as possibly the acoustic absorbent 32 are arranged inside these profiles. Advantageously, as shown in FIG. 4, the lateral sides of the tubular profiles 20, 22, 24, 26 are provided with longitudinal grooves 33 situated between the butyl rubber cords 16 2 and the cavity 18. These grooves are suitable for serving as a reservoir safety for butyl rubber or in general the adhesive sealant which could migrate towards the clear view of the cavity 18 under the effect of gravity, temperature or vibrations.
La cloison peut être réalisée de différentes façons, par exemple, elle peut être constituée par un étranglement 38 obtenu par écrasement de deux parois opposées du profilé (figure 5) ou d'une seule paroi du profilé (figure 6). Ceci est en particulier pratique lorsque les profilés 20, 22, 24, 26 sont en matière thermoplastique ; on réalise alors l'écrasement du profilé et son thermosoudage. La cloison peut également être constituée par un tampon 39 à fort pouvoir d'absorption acoustique (figure 7).The partition can be produced in different ways, for example, it can be constituted by a throttle 38 obtained by crushing two opposite walls of the profile (Figure 5) or a single wall of the profile (Figure 6). This is particularly practical when the profiles 20, 22, 24, 26 are made of thermoplastic material; then the profile is crushed and heat sealed. The partition may also be constituted by a pad 39 with a high acoustic absorption power (FIG. 7).
La cloison peut encore être réalisée à l'aide d'un connecteur- cloison 40 tel que montré sur la figure 8. Ce connecteur est constitué par un tronçon de profilé tubulaire 41 de faible longueur, par exemple environ 2 à 5 cm, de section légèrement inférieure à celle des profilés 20, 22, 24, 26 du guide d'onde, mais de même forme, de façon à pouvoir s'emboîter dans ces derniers. Il est muni au milieu de sa longueur d'une cloison 28 et sur sa périphérie, par exemple à l'aplomb de la cloison 28, d'une nervure 42 en relief par rapport à sa surface et ayant une hauteur égale à l'épaisseur des parois des profilés 20, 22, 24, 26. Ainsi, deux demi-longueurs de profilés emmanchées sur ce connecteur, constitueront de façon simple un profilé de guide d'onde à surface extérieure lisse, avec une cloison 28. On notera que l'absorbant acoustique peut également être disposé dans ce connecteur 40, de chaque côté de la cloison 28. Le connecteur-cloison montré à la figure 8 comporte des rainures longitudinales 43 destinées à recevoir les nervures 37 qui font saillie à l'intérieur des profilés 20, 22, 24, 26.The partition can also be produced using a connector-partition 40 as shown in FIG. 8. This connector consists of a section of tubular section 41 of short length, for example approximately 2 to 5 cm, of cross-section slightly lower than that of the sections 20, 22, 24, 26 of the waveguide, but of the same shape, so as to be able to fit into the latter. It is provided in the middle of its length with a partition 28 and on its periphery, for example directly above the partition 28, with a rib 42 in relief relative to its surface and having a height equal to the thickness of the walls of the profiles 20, 22, 24, 26. Thus, two half-lengths of profiles fitted on this connector, will simply constitute a waveguide profile with a smooth outer surface, with a partition 28. It will be noted that the sound absorbent can also be placed in this connector 40, on each side of the partition 28. The partition connector shown in FIG. 8 has longitudinal grooves 43 intended to receive the ribs 37 which protrude inside the profiles 20 , 22, 24, 26.
La figure 9 montre en perspective une équerre 50 servant à assembler les profilés 20, 22, 24, 26 pour faciliter leur mise en place à l'intérieur du double vitrage, et en particulier pour assurer la continuité et la solidarité du cadre intercalaire du double vitrage dans la mesure où, comme cela est montré sur les figures 3 et 4, les profilés 20, 22, 24, 26 font en même temps office de cadre intercalaire 16ι.Figure 9 shows in perspective a bracket 50 used to assemble the profiles 20, 22, 24, 26 to facilitate their installation inside the double glazing, and in particular to ensure the continuity and solidarity of the interlayer frame of the double glazing insofar as, as shown in FIGS. 3 and 4, the sections 20, 22, 24, 26 also act as an intermediate frame 16ι.
Chaque équerre 50 comprend un corps central 51 et deux ailes 53, 55 ayant la même section extérieure que celle des profilés. Les ailes se terminent par des embouts 56, 58 à section réduite de manière à pouvoir s'emboîter à l'intérieur des extrémités des profilés. Les équerres présentent dans leur coin intérieur des fenêtres 54 qui font communiquer l'intérieur du guide d'onde avec la cavité 18.Each bracket 50 comprises a central body 51 and two wings 53, 55 having the same external section as that of the profiles. The wings end with end caps 56, 58 of reduced section so as to be able to fit inside the ends of the profiles. The brackets have windows 54 in their inner corner which communicate the interior of the waveguide with the cavity 18.
La fabrication du vitrage isolant acoustique de la figure 3 se fait comme suit : on commence par constituer les quatre profilés 20, 22, 24, 26 au moyen des connecteurs-cloisons 40 et de portions de profilés tubulaires qu'on emmanche sur ces derniers. Dans les quatre profilés 20, 22, 24, 26 ainsi formés, on introduit l'absorbant 32 et le desséchant 34, puis on assemble les profilés au moyen des équerres 50 pour obtenir le cadre montré à la figure 10. La longueur des profilés sera choisie en fonction des dimensions de vitrage que l'on veut fabriquer. On dépose ensuite des cordons I62 de caoutchouc butyl sur les faces latérales du cadre intercalaire ainsi formé, puis on colle deux feuilles de verre 12, 14 sur le cadre intercalaire. On injecte ensuite dans la rainure qui se forme à la périphérie du vitrage un cordon de matière plastique étanche I63.The manufacture of the acoustic insulating glazing of FIG. 3 is done as follows: one begins by constituting the four sections 20, 22, 24, 26 by means of the wall connectors 40 and portions of tubular sections which are fitted to the latter. In the four sections 20, 22, 24, 26 thus formed, the absorbent 32 and the desiccant 34 are introduced, then the sections are assembled by means of brackets 50 to obtain the frame shown in FIG. 10. The length of the sections will be chosen according to the glazing dimensions that we want to manufacture. Next, cords I62 of butyl rubber are deposited on the lateral faces of the intermediate frame thus formed, then two sheets of glass 12, 14 are bonded to the intermediate frame. Next, a watertight plastic bead I63 is injected into the groove which forms at the periphery of the glazing.
On notera que l'assemblage des profilés est d'une grande simplicité et se fait sans tâtonnement étant donné que les épaulements 60 définis entre les embouts 56, 58 et le corps 51 de l'équerre limitent à une juste valeur la longueur d'introduction des embouts à l'intérieur des profilés. On notera encore que les faces supérieure et inférieure du cadre intercalaire sont plates sur toute leur surface, et ne présentent pas de surépaisseur. Les deux feuilles de verre prennent donc appui uniformément sur toute la surface de ces faces.It will be noted that the assembly of the profiles is very simple and is done without trial and error since the shoulders 60 defined between the end pieces 56, 58 and the body 51 of the bracket limit the insertion length to a fair value. end caps inside the profiles. It will also be noted that the upper and lower faces of the intermediate frame are flat over their entire surface, and do not have any additional thickness. The two glass sheets therefore bear uniformly over the entire surface of these faces.
Il va de soi que le guide d'onde peut être également réalisé à la demande, en une seule pièce avec les dimensions voulues, par exemple en pliant un long profilé tubulaire selon la forme et les dimensions du vitrage à constituer et en soudant ou en assemblant d'une autre manière les deux extrémités du cadre ainsi réalisé.It goes without saying that the waveguide can also be produced on demand, in one piece with the desired dimensions, for example by folding a long tubular profile according to the shape and dimensions of the glazing to be formed and by welding or otherwise assembling the two ends of the frame thus produced.
Des trous sont ensuite percés dans les coins intérieurs de ce cadre pour faire communiquer l'intérieur avec la cavité 18. Ici aussi, les cloisons 28 seront réalisées par l'un des procédés décrits précédemment, par exemple, en introduisant à l'intérieur du profilé, avant son pliage, quatre tampons d'absorbant que l'on positionne pour que, après pliage, ils se trouvent au milieu des quatre côtés du guide, ou encore, en particulier quand il s'agit de profilés thermoplastiques, en écrasant le profilé aux endroits voulus et en le thermosoudant. Pour réaliser le vitrage de la variante montrée aux figures 1 et 2, on constitue les profilés 20, 22, 24, 26 par exemple à l'aide de tubes et de connecteurs-cloisons. On dépose ensuite un cordon de caoutchouc butyl sur les faces latérales de chaque profilé 20, 22, 24 et 26 ainsi constitué. Ces profilés sont ensuite déposés à l'intérieur d'un vitrage en cours de fabrication et possédant déjà sa feuille de verre inférieure 12 et son cadre intercalaire rigide 16., collé sur cette feuille 12. Les profilés 20, 22, 24, 26 étant en place, juxtaposés aux différents côtés du cadre intercalaire, on ferme le vitrage en mettant en place la seconde feuille de verre 14. De tels vitrages selon l'invention sont particulièrement efficaces pour des lames d'air de 16 à 24 mm de hauteur. Holes are then drilled in the interior corners of this frame to communicate the interior with the cavity 18. Here too, the partitions 28 will be produced by one of the methods described above, for example by introducing inside the profiled, before folding, four absorbent pads which are positioned so that, after folding, they are in the middle of the four sides of the guide, or even, in particular when it is thermoplastic profiles, by crushing the profile at places and by heat sealing. To make the glazing of the variant shown in FIGS. 1 and 2, the sections 20, 22, 24, 26 are formed, for example, using tubes and bulkhead connectors. A bead of butyl rubber is then deposited on the lateral faces of each profile 20, 22, 24 and 26 thus formed. These profiles are then deposited inside a glazing during manufacture and already having its lower glass sheet 12 and its rigid intermediate frame 16., bonded to this sheet 12. The profiles 20, 22, 24, 26 being in place, juxtaposed on the different sides of the intermediate frame, the glazing is closed by placing the second glass sheet 14. Such glazings according to the invention are particularly effective for air knives 16 to 24 mm high.

Claims

REVENDICATIONS
1. Vitrage isolant acoustique du type, comprenant :1. Acoustic insulating glass of the type, comprising:
- deux feuilles de verre ( 12, 14) assemblées à leur périphérie à l'aide d'un ensemble ( 16) formant joint étanche ( I63) et cadre- two sheets of glass (12, 14) assembled at their periphery using an assembly (16) forming a seal (I63) and frame
5 intercalaire (16.) qui définit avec les deux feuilles de verre une cavité plate ( 18) remplie d'un gaz,5 spacer (16.) which defines with the two glass sheets a flat cavity (18) filled with a gas,
- et un guide d'onde fixé entre les feuilles de verre, intérieurement au cadre intercalaire, caractérisé en ce que le guide d'onde est constitué d'au moins un 0 profilé tubulaire rectiligne (20, 22, 24, 26) disposé à la périphérie de la cavité ( 18) remplie de gaz, le long d'un côté du vitrage, ce profilé étant pourvu d'une cloison transversale (28), qui le ferme dans le sens de sa longueur, ladite cloison étant disposée à un endroit de longueur du profilé qui est fonction du mode acoustique de la cavité que l'on 5 souhaite désorganiser, cette cloison définissant de part et d'autre d'elle deux chambres (30, 31) qui communiquent à travers les extrémités des profilés avec la cavité ( 18) .- And a waveguide fixed between the glass sheets, internally to the intermediate frame, characterized in that the waveguide consists of at least one straight tubular profile (20, 22, 24, 26) arranged at the periphery of the cavity (18) filled with gas, along one side of the glazing, this profile being provided with a transverse partition (28), which closes it in the direction of its length, said partition being arranged at a place of length of the profile which is a function of the acoustic mode of the cavity which one wishes to disorganize, this partition defining on either side of it two chambers (30, 31) which communicate through the ends of the profiles with the cavity (18).
2. Vitrage selon la revendication 1 , caractérisé en ce qu'il comporte plusieurs profilés de guide d'onde, notamment quatre (20, 22, 24, 26), 0 disposés le long de la longueur de chacun des côtés de la cavité (18).2. Glazing according to claim 1, characterized in that it comprises several waveguide profiles, in particular four (20, 22, 24, 26), 0 arranged along the length of each of the sides of the cavity ( 18).
3. Vitrage selon l'une des revendications 1 ou 2, caractérisé en ce que la cloison (28) de chaque profilé est disposée sensiblement au milieu de sa longueur.3. Glazing according to one of claims 1 or 2, characterized in that the partition (28) of each profile is arranged substantially in the middle of its length.
4. Vitrage selon l'une des revendications 1 ou 2, caractérisé en ce -> que la cloison (28) est disposée au tiers ou au quart de la longueur du profilé.4. Glazing according to one of claims 1 or 2, characterized in -> that the partition (28) is arranged at one third or one quarter of the length of the profile.
5. Vitrage selon l'une des revendications précédentes, caractérisé en ce que la cloison est réalisée par l'un des moyens appartenant au groupe suivant connecteur-cloison (40), étranglement (38) 0 thermosoudé dans un profilé thermoplastique, tampon (39) de matière acoustiquement absorbante ou cloison glissée dans le profilé.5. Glazing according to one of the preceding claims, characterized in that the partition is produced by one of the means belonging to the following group of connector-partition (40), throttle (38) 0 heat-sealed in a thermoplastic profile, buffer (39 ) of acoustically absorbent material or partition slipped into the profile.
6. Vitrage selon l'une des revendications précédentes, caractérisé en ce que le cadre intercalaire ( I61) du vitrage isolant et les profilés de guide d'onde (20, 22, 24, 26) sont distincts et juxtaposés. 5 7. Vitrage selon l'une des revendications 1 à 5, caractérisé en ce que les profilés de guide d'onde (20, 22, 24, 26) jouent en même temps le rôle de cadre intercalaire ( I61). 6. Glazing according to one of the preceding claims, characterized in that the intermediate frame (I61) of the insulating glazing and the waveguide profiles (20, 22, 24, 26) are separate and juxtaposed. 5 7. Glazing according to one of claims 1 to 5, characterized in that the waveguide profiles (20, 22, 24, 26) simultaneously play the role of intermediate frame (I61).
O 00/75473 , 1 PCT/FR0O/O15O1 O 00/75473, 1 PCT / FR0O / O15O1
8. Vitrage selon l'une des revendications précédentes, caractérisé en ce que les profilés de guide d'onde (20, 22, 24, 26) sont munis, le long de leurs faces en contact avec les feuilles de verre ( 12, 14) d'une rainure longitudinale (33) formant réservoir de sécurité, pour retenir en cas de fluage, la matière ( 162) qui sert à coller les feuilles de verre ( 12, 14) sur le cadre intercalaire ( 16ι).8. Glazing according to one of the preceding claims, characterized in that the waveguide profiles (20, 22, 24, 26) are provided, along their faces in contact with the glass sheets (12, 14 ) a longitudinal groove (33) forming a safety tank, to retain in the event of creep, the material (16 2 ) which is used to glue the glass sheets (12, 14) on the intermediate frame (16ι).
9. Vitrage selon l'une des revendications précédentes, caractérisé en ce que les profilés sont assemblés en forme de cadre continu de même forme que le vitrage, des ouvertures (54) étant découpées dans les coins intérieurs dudit cadre pour faire communiquer les chambres intérieures des profilés avec la cavité (18).9. Glazing according to one of the preceding claims, characterized in that the sections are assembled in the form of a continuous frame of the same shape as the glazing, openings (54) being cut in the interior corners of said frame to communicate the interior chambers. profiles with the cavity (18).
10. Vitrage selon la revendication 1 , caractérisé en ce que les profilés (20, 22, 24, 26) sont disjoints et leurs chambres intérieures (30, 31) communiquent avec la cavité ( 18) à travers les extrémités ouvertes des profilés.10. Glazing according to claim 1, characterized in that the profiles (20, 22, 24, 26) are disjoint and their interior chambers (30, 31) communicate with the cavity (18) through the open ends of the profiles.
1 1. Vitrage selon la revendication 9, caractérisé en ce que les profilés (20, 22, 24, 26) sont assemblés au moyen d'équerres tubulaires (50) dont les ailes (56, 58) s'emboîtent dans les extrémités des profilés, lesdites équerres présentant un orifice (54) au niveau de leur arête intérieure pour faire communiquer l'espace intérieur des profilés avec la cavité du vitrage.1 1. Glazing according to claim 9, characterized in that the profiles (20, 22, 24, 26) are assembled by means of tubular brackets (50) whose wings (56, 58) fit into the ends of the profiles, said brackets having an orifice (54) at their inner edge to communicate the interior space of the profiles with the glazing cavity.
12. Vitrage selon l'une des revendications précédentes, caractérisé en ce que le guide d'onde contient un absorbant acoustique (32). 12. Glazing according to one of the preceding claims, characterized in that the waveguide contains an acoustic absorbent (32).
EP00938865A 1999-06-08 2000-05-31 Partitioned wave-guide sound insulation glazing Expired - Lifetime EP1183437B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9907220 1999-06-08
FR9907220A FR2794792B1 (en) 1999-06-08 1999-06-08 ACOUSTIC INSULATING GLASS WITH PARTITIONED WAVEGUIDE
PCT/FR2000/001501 WO2000075473A1 (en) 1999-06-08 2000-05-31 Partitioned wave-guide sound insulation glazing

Publications (2)

Publication Number Publication Date
EP1183437A1 true EP1183437A1 (en) 2002-03-06
EP1183437B1 EP1183437B1 (en) 2006-10-25

Family

ID=9546520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00938865A Expired - Lifetime EP1183437B1 (en) 1999-06-08 2000-05-31 Partitioned wave-guide sound insulation glazing

Country Status (15)

Country Link
US (1) US6668974B1 (en)
EP (1) EP1183437B1 (en)
JP (1) JP2003501572A (en)
KR (1) KR100716129B1 (en)
AT (1) ATE343699T1 (en)
BR (1) BR0011384A (en)
CA (1) CA2373019C (en)
CZ (1) CZ20014372A3 (en)
DE (1) DE60031528T2 (en)
DK (1) DK1183437T3 (en)
ES (1) ES2275516T3 (en)
FR (1) FR2794792B1 (en)
NO (1) NO324996B1 (en)
PL (1) PL197058B1 (en)
WO (1) WO2000075473A1 (en)

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US20070039258A1 (en) * 2005-08-19 2007-02-22 Walker John R Iii Adjustable attachment system
JP4843398B2 (en) * 2006-07-26 2011-12-21 本田技研工業株式会社 Manufacturing method for vehicle wheel and vehicle wheel
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JP6382141B2 (en) * 2015-03-26 2018-08-29 日本板硝子株式会社 Double glazing
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Also Published As

Publication number Publication date
FR2794792A1 (en) 2000-12-15
KR100716129B1 (en) 2007-05-10
ATE343699T1 (en) 2006-11-15
DE60031528D1 (en) 2006-12-07
WO2000075473A1 (en) 2000-12-14
NO324996B1 (en) 2008-01-14
NO20015939D0 (en) 2001-12-04
CA2373019A1 (en) 2000-12-14
EP1183437B1 (en) 2006-10-25
DE60031528T2 (en) 2007-08-23
NO20015939L (en) 2001-12-04
CZ20014372A3 (en) 2002-04-17
BR0011384A (en) 2002-04-23
ES2275516T3 (en) 2007-06-16
PL197058B1 (en) 2008-02-29
KR20020010614A (en) 2002-02-04
US6668974B1 (en) 2003-12-30
DK1183437T3 (en) 2007-02-26
FR2794792B1 (en) 2001-08-31
PL352196A1 (en) 2003-08-11
JP2003501572A (en) 2003-01-14
CA2373019C (en) 2008-07-15

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