EP1183437B1 - Partitioned wave-guide sound insulation glazing - Google Patents

Partitioned wave-guide sound insulation glazing Download PDF

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Publication number
EP1183437B1
EP1183437B1 EP00938865A EP00938865A EP1183437B1 EP 1183437 B1 EP1183437 B1 EP 1183437B1 EP 00938865 A EP00938865 A EP 00938865A EP 00938865 A EP00938865 A EP 00938865A EP 1183437 B1 EP1183437 B1 EP 1183437B1
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EP
European Patent Office
Prior art keywords
glazing unit
cavity
partition
sections
section
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Expired - Lifetime
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EP00938865A
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German (de)
French (fr)
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EP1183437A1 (en
Inventor
Béatrice MOTTELET
Marc Rehfeld
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Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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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 glazing is commonly used in the building to improve the thermal insulation of premises.
  • Glazing generally comprises two glass sheets associated by means of an intermediate frame which keeps them at a distance from one another by trapping between them a blade of air or gas.
  • the glass sheets may have a thickness of 4 mm and be separated by an air or gas gap in general between 6 and 24 mm.
  • these windows have limited acoustic performance, significantly lower than that of a monolithic glass of the same overall surface mass and, in particular, double glazing with two sheets of 4 mm have poor acoustic performance.
  • Another way is to increase the thickness of the air space, but the effect is sensitive only for air thicknesses of several centimeters, which prohibits the realization of sealed insulating glass.
  • Patent EP-0 100 701 discloses a glazing unit whose glass sheets are constituted by special laminates incorporating particular polymer films. This type of glazing allows a very clear improvement compared to ordinary insulating glass, but the cost is also significantly higher.
  • Some publications have proposed glazings made of monolithic glass sheets of standard thickness, outside of which are installed Helmholtz resonators tuned to the resonant frequency of the air space enclosed between the sheets of glass with which they are connected. It is recalled that a Helmholtz resonator is constituted by a cavity which communicates with the outside through a narrow orifice. When an acoustic pressure acts on said orifice, it tends to vibrate the air mass contained in the cavity at a certain frequency which is a function of the dimensions of this cavity.
  • the Helmholtz resonator is used to attenuate low frequency oscillations; its efficiency 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 Helmholtz resonator, always outside the glazing unit, mounted at its periphery and whose cavity communicates with the blade. air through a continuous slot, but this system has the same defect as the previous one.
  • patent EP 0 579 542 discloses a glazing unit provided at its periphery with a waveguide which communicates with the air gap through a plurality of orifices whose shape, section and position are determined in such a way as to detune the acoustic and mechanical waves which are born respectively in the air space and on the sheets of glass when the glazing is subjected to an incident acoustic field.
  • This waveguide is embodied by a single profile around the insulating glass, arranged along the sides of the spacer frame, internally relative 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 inside of the waveguide and the air knife.
  • the document DE-A-28 03 740 describes a glazing unit provided at its periphery with a waveguide associated with the spacer, this waveguide consists of a straight tubular profile and provided on its lateral walls with ports that communicate with the air space.
  • the acoustic performance is quite limited and the introduction of the waveguide profile or profiles is complicated.
  • the present invention aims at remedying the drawbacks of the prior art techniques presented above and relates to glazing acoustic insulation formed of two monolithic or other glass plates, with improved acoustic efficiency, reserving a clear view, compact, easy to manufacture and for a cost barely higher than that of conventional insulating glass units.
  • the invention is based on the observation that a glazing formed of two glass plates and which is subjected to an incident acoustic excitation is the seat of several vibro-acoustic modes, but that one of the acoustic modes which conveys the most energy from one plate to another is that in ⁇ / 2. If, therefore, this mode is essentially attenuated in ⁇ / 2, most of the acoustic energy transmitted from one glass to the other is eliminated.
  • the invention relates to an acoustic insulating glazing unit of the type described in DE-A-28 03 740, that is to say formed of two glass plates separated by a peripheral spacer frame, enclosing a cavity filled with gas, in particular most generally air, and having an inner waveguide consisting of at least one rectilinear tubular section disposed at the periphery of the cavity, along one side of the glazing, characterized in that this section is provided with a transverse partition which closes in the direction of its length, arranged at a location of this length which is a function of the acoustic mode that is desired to mitigate.
  • the glazing is thus associated with a double tubular Helmholtz resonator tuned to the wavelength of the acoustic mode that Ion essentially wants to disorganize, for example ⁇ / 2, if we want to disorganize this vibratory mode, where ⁇ / i (i being an integer ⁇ if we want to disorganize this other vibratory mode
  • the position of the partition depends on the acoustic mode to disorganize: it is placed substantially in the middle of the length of the profile to act on the mode in ⁇ / 2 or the third to detune the acoustic mode in ⁇ / 3.
  • the middle partition can be made by any suitable means. It can come from manufacture with the profile during the extrusion thereof or be carried out later, in particular by interlocking two profiles of lengths slightly less than the half-length of one side of the glazing, on a partition connector, that is to say equipped with a partition or, in particular in the case of thermoformable plastic profiles, by restricting 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 sections, smooth internally, in which buffers 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 profiles forming the waveguide may be disjoint and in this case, their inner chambers defined on either side of the partition communicate with the cavity of the glazing through the open ends of the profiles which are opposite to the partition.
  • They can also be assembled by means of tubular brackets whose wings fit into the ends of the profiles, an orifice being provided in the brackets or in the wall facing the profiles, to communicate the interior space of the profiles with the cavity of the glazing, at the angles of the glazing.
  • a frame is made from a straight hollow section by folding thereof and holes are made in the corners of the frame, in its wall which is intended to be turned towards the cavity internal glazing.
  • the glazing 10 which is shown therein comprises, in a manner known per se, two glass sheets 12, 14 connected to each other over their entire periphery by a joint assembly and an interleafed interposed sealing frame. as a whole by the reference 16 which keeps them separated by trapping between them a flat cavity 18 which can contain air and / or a gas.
  • This assembly 16 generally comprises a rigid section 16 1 forming an intermediate frame glued to the sheets 12, 14.
  • the profile 16 1 is provided on each of its lateral faces in contact with the glass sheets, a butyl rubber gluing and sealing bead 16 2 and a peripheral sealing gasket 16 3 which adheres to the edges internals of the two glass sheets 12 and 14.
  • a waveguide is formed at the periphery of the latter, inside the assembly 16, which communicates with the cavity 18 via orifices placed at appropriate places.
  • the waveguide consists of a plurality of rectilinear tubular sections 20, 22, 24, 26 which are glued to the two glass sheets and to the inner faces of the assembly 16.
  • profiles have a rectangular section of the same height as the profiles forming spacer frame 16 1 , and are open at their ends. They include for example in the middle of their length, a median partition 28 which defines on either side of it two chambers 30, 31. These profiles 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 ⁇ 1/2 and ⁇ 2/2, ⁇ 1 and ⁇ 2 are respectively equal to c / L and c / 1.
  • the efficiency of the waveguide can be increased by inserting in the inner chambers 30, 31 an acoustically absorbent material 32.
  • a desiccant 34 is advantageously arranged in the intermediate frame profiles 16 1 , holes 36 drilled in these profiles 16 1 and ending inside the profiles 20, 22, 24 , 26 of the waveguide, putting this desiccant 34 in communication with the air of the cavity 18, via the waveguide profiles 20, 22, 24, 26.
  • FIGS. 3 and 4 differs from the preceding one only in that the straight tubular sections 20, 22, 24, 26 of the waveguide simultaneously serve as profiles of the rigid intermediate frame 16 1 serving to keep spaced the two sheets of glass.
  • the realization of the glazing is simpler, and the clear view of said glazing is increased.
  • the butyl rubber beads 16 2 which seal with the glass sheets are deposited on the lateral edges of the waveguide sections and the 34, as well as possibly the acoustic absorbent 32 are disposed within these profiles.
  • the lateral sides of the tubular sections 20, 22, 24, 26 are provided with longitudinal grooves 33 located between the butyl rubber beads 16 2 and the cavity 18. These grooves are able to serve as a reservoir safety for butyl rubber or in general the bonding putty that could migrate to the clear view of the cavity 18 under the effect of gravity, temperature or vibration.
  • the partition can be made in different ways, for example, it can be constituted by a throat 38 obtained by crushing two opposite walls of the profile ( Figure 5) or a single wall of the profile ( Figure 6). This is particularly convenient when the profiles 20, 22, 24, 26 are made of thermoplastic material; the profile is then crushed and heat-sealed.
  • the partition may also be constituted by a buffer 39 with a high acoustic absorption capacity (FIG. 7).
  • the partition may also be made using a bulkhead connector 40 as shown in FIG. 8.
  • This connector is constituted by a section of tubular section 41 of short length, for example approximately 2 to 5 cm, of section slightly smaller than that of the profiles 20, 22, 24, 26 of the waveguide, but of the same shape, so as to fit into them. It is provided in the middle of its length with a partition 28 and on its periphery, for example in line with the partition 28, with a rib 42 raised in relation to its surface and having a height equal to the thickness walls of the profiles 20, 22, 24, 26.
  • the bulkhead connector shown in FIG. 8 has longitudinal grooves 43 intended to receive the ribs 37 which project inside the sections 20, 22, 24, 26.
  • FIG. 9 shows in perspective a bracket 50 serving to assemble the profiles 20, 22, 24, 26 to facilitate their placement inside the double glazing, and in particular to ensure the continuity and solidarity of the double spacer frame.
  • glazing insofar as, as shown in FIGS. 3 and 4, the profiles 20, 22, 24, 26 at the same time act as an interim framework 16 1 .
  • Each bracket 50 comprises a central body 51 and two wings 53, 55 having the same external section as the profiles.
  • the wings are terminated by end pieces 56, 58 of reduced section so as to fit inside the ends of the profiles.
  • the brackets have in their inner corner windows 54 which communicate the interior of the waveguide with the cavity 18.
  • the manufacture of the acoustic insulating glazing unit of FIG. 3 is as follows: firstly, the four sections 20, 22, 24, 26 are formed by means of the partition connectors 40 and portions of tubular sections that are fitted onto these sections. 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 the 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. Is then deposited cords 16 2 butyl rubber on the side faces of the insert frame thus formed and then glue the two glass sheets 12, 14 of the spacer frame. Then injected into the groove formed at the periphery of the glazing a sealed plastic cord 16 3 .
  • the waveguide can also be made on demand, in one piece with the desired dimensions, for example by folding a long tubular section according to the shape and dimensions of the glazing to be formed and welding or in assembling in another way the two ends of the frame thus produced.
  • the partitions 28 will be made by one of the methods described above, for example, by introducing into the interior of the profile, before folding, four absorbent pads that are positioned so that, after folding, they are in the middle of the four sides of the guide, or, especially when it comes to thermoplastic profiles, by crushing the profile to wanted places and by heat-sealing.
  • the profiles 20, 22, 24, 26 are formed for example by means of tubes and partition connectors. A butyl rubber bead is then deposited on the lateral faces of each profile 20, 22, 24 and 26 thus formed. These profiles are then deposited inside a window during manufacture and already having its lower glass sheet 12 and its rigid intermediate frame 16 1 , bonded to this sheet 12. The profiles 20, 22, 24, 26 being in place, juxtaposed to the different sides of the spacer frame, the glazing is closed by putting in place the second glass sheet 14.
  • Such glazings according to the invention are particularly effective for air slats 16 to 24 mm in height.

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  • 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)
  • Glass Compositions (AREA)
  • Building Environments (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Aerials With Secondary Devices (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

La présente invention concerne l'isolation acoustique d'un vitrage.The present invention relates to the acoustic insulation of a glazing.

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.Insulating glazing is commonly used in the building to improve the thermal insulation of premises. Glazing generally comprises two glass sheets associated by means of an intermediate frame which keeps them at a distance from one another by trapping between them a blade 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 in general between 6 and 24 mm. However, as they are, these windows have limited acoustic performance, significantly lower than that of a monolithic glass of the same overall surface mass and, in particular, double glazing with two sheets of 4 mm have poor acoustic performance.

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.Various means are used in the industry to improve the acoustic performance of these insulating glass units. The most common way is to increase the thickness of the glass sheets, but this technique has limited efficiency 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 sensitive only for air thicknesses of several centimeters, which prohibits the realization of sealed insulating glass.

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.Patent EP-0 100 701 discloses a glazing unit whose glass sheets are constituted by special laminates incorporating particular polymer films. This type of glazing allows a very clear improvement compared to ordinary insulating glass, but the cost 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 Helmholtz 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 Helmholtz 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 Helmholtz 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 made of monolithic glass sheets of standard thickness, outside of which are installed Helmholtz resonators tuned to the resonant frequency of the air space enclosed between the sheets of glass with which they are connected. It is recalled that a Helmholtz resonator is constituted by a cavity which communicates with the outside through a narrow orifice. When an acoustic pressure acts on said orifice, it tends to vibrate the air mass contained in the cavity at a certain frequency which is a function of the dimensions of this cavity. The Helmholtz resonator is used to attenuate low frequency oscillations; its efficiency 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 Helmholtz 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 oeuvre. 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 the patent application WO-A-85 02640, which relates to a box provided with spherical Helmholtz resonators located outside the box and in communication with its internal cavity by low ducts. section. However, this system is completely unsuited to insulating glass units because the production of external spherical resonators is expensive and difficult to implement. In addition, these resonators are relatively large compared to the volume of the air gap of the glazing and thus 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 de Helmholtz, 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.Patent DE 3 401 996 relates to a variant of the previous system applied to a glazing unit, which uses only one Helmholtz resonator, always outside the glazing unit, mounted at its periphery and whose cavity communicates with the blade. air through 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.Finally, patent EP 0 579 542 discloses a glazing unit provided at its periphery with a waveguide which communicates with the air gap through a plurality of orifices whose shape, section and position are determined in such a way as to detune the acoustic and mechanical waves which are born respectively in the air space and on the sheets of glass when the glazing is subjected to an incident acoustic 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 1es 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 spacer frame, internally relative 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 inside of the waveguide and the air knife.

Enfin, le document DE-A-28 03 740 décrit un vitrage muni à sa périphérie d'un guide d'onde associé à l'intercalaire, ce guide d'onde consiste en un profilé tubulaire rectiligne et pourvu sur ses parois latérales d'orifices qui communiquent avec la lame d'air.Finally, the document DE-A-28 03 740 describes a glazing unit provided at its periphery with a waveguide associated with the spacer, this waveguide consists of a straight tubular profile and provided on its lateral walls with ports that communicate with 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.Whatever the variant embodiment, the acoustic performance is quite limited and the introduction of the waveguide profile or profiles is complicated.

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.The present invention aims at remedying the drawbacks of the prior art techniques presented above and relates to glazing acoustic insulation formed of two monolithic or other glass plates, with improved acoustic efficiency, reserving a clear view, compact, easy to manufacture and for a cost barely higher than that of conventional insulating glass units.

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 of two glass plates and which is subjected to an incident acoustic excitation is the seat of several vibro-acoustic modes, but that one of the acoustic modes which conveys the most energy from one plate to another is that in λ / 2. If, therefore, this mode is essentially attenuated in λ / 2, most of the acoustic energy transmitted from one glass to the other is eliminated.

L'invention concerne un vitrage isolant acoustique du type décrit dans le document DE-A-28 03 740, 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 constitué d'au moins un profilé tubulaire rectiligne disposé à la périphérie de la cavité, le long d'un côté du vitrage, caractérisé en ce que ce profilé est 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 unit of the type described in DE-A-28 03 740, that is to say formed of two glass plates separated by a peripheral spacer frame, enclosing a cavity filled with gas, in particular most generally air, and having an inner waveguide consisting of at least one rectilinear tubular section disposed at the periphery of the cavity, along one side of the glazing, characterized in that this section is provided with a transverse partition which closes in the direction of its length, arranged at a location of this length which is a function of the acoustic mode that is desired to mitigate.

On associe ainsi au vitrage un double résonateur de Helmholtz tubulaire accordé sur la longueur d'onde du mode acoustique que Ion 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 c est la célérité du son dans la cavité interne du vitrage et l est la longueur du résonateur de Helmholtz tubulaire, fonction de la position de la cloison.The glazing is thus associated with a double tubular Helmholtz resonator tuned to the wavelength of the acoustic mode that Ion essentially wants to disorganize, for example λ / 2, if we want to disorganize this vibratory mode, where λ / i (i being an integer} if we want to disorganize this other vibratory mode We know that λ is given by the formula λ = c / l where c is the velocity of sound in the internal cavity of the glazing and l is the length of the resonator of Tubular helmholtz, 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 glass, along the sides of said glazing, each section 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 disorganize: it is placed substantially in the middle of the length of the profile to act on the mode in λ / 2 or the 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 middle partition can be made by any suitable means. It can come from manufacture with the profile during the extrusion thereof or be carried out later, in particular by interlocking two profiles of lengths slightly less than the half-length of one side of the glazing, on a partition connector, that is to say equipped with a partition or, in particular in the case of thermoformable plastic profiles, by restricting 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 absorbent material to improve the acoustic performance. It is then wise to use this absorbent in place of a partition and make it play the role of partition. The guide will then be formed for example of tubular sections, smooth internally, in which buffers 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.The principle of nested profiles on a connector which contains a buffer of absorbing material is also an interesting practical solution.

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 profiles forming the waveguide may be disjoint and in this case, their inner chambers defined on either side of the partition communicate with the cavity of the glazing 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 whose wings fit into the ends of the profiles, an orifice being provided in the brackets or in the wall facing the profiles, to communicate the interior space of the profiles with the cavity of the glazing, at the angles 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 embodiment, a frame is made from a straight hollow section by folding thereof and holes are made 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 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 appended drawings in which:
  • FIG. 1 is a plan view of an acoustic insulating glazing unit according to a first embodiment of the invention, with a tearing mid-thickness of the glazing;
  • Figure 2 is a sectional view on a larger scale 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 the line IV-IV of Figure 3;
  • Figures 5, 6 and 7 show in longitudinal section three embodiments of the median wall in a profile;
  • Figure 8 shows a partition connector;
  • Figure 9 is a perspective view of a bracket for connecting the profiles together; and
  • FIG. 10 is a perspective view of a waveguide in the form of a rectangular frame made by means of profiles assembled with the brackets of FIG. 9 and the partition 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 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 of all to FIGS. 1 and 2, the glazing 10 which is shown therein comprises, in a manner known per se, two glass sheets 12, 14 connected to each other over their entire periphery by a joint assembly and an interleafed interposed sealing frame. as a whole by the reference 16 which keeps them separated by trapping between them a flat cavity 18 which can contain air and / or a gas. This assembly 16 generally comprises a rigid section 16 1 forming an intermediate frame glued to the sheets 12, 14.

Le profilé 161 est muni, sur chacune de ses faces latérales en 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 163 qui colle aux bords internes des deux feuilles de verre 12 et 14.The profile 16 1 is provided on each of its lateral faces in contact with the glass sheets, a butyl rubber gluing and sealing bead 16 2 and a peripheral sealing gasket 16 3 which adheres to the edges internals 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, 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.According to the invention, in order to increase the acoustic insulation of the glazing, a waveguide is formed at the periphery of the latter, inside the assembly 16, which communicates with the cavity 18 via orifices placed at appropriate places. The waveguide consists of a plurality of rectilinear tubular sections 20, 22, 24, 26 which are glued to the two glass sheets and to the inner faces of the assembly 16.

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.These profiles have a rectangular section of the same height as the profiles forming spacer frame 16 1 , and are open at their ends. They include for example in the middle of their length, a median partition 28 which defines on either side of it two chambers 30, 31. These profiles are not contiguous, so that the chambers 30, 31 communicate with the cavity 18 through their open ends.

Comme on l'a expliqué précédemment, de tels profilés avec cloisons au milieu de leur longueur se comportent comme autant de résonateurs de Helmholtz qui ont pour propriété de désorganiser le mode acoustique en λ/2, qui véhicule la majorité de l'énergie du champ acoustique incident.As explained above, such profiles with partitions in the middle of their length behave like Helmholtz resonators which have the property of disrupting the acoustic mode in λ / 2, which conveys the majority of the energy of the field. acoustic incident.

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 λ1/2 et λ2/2, λ1 et λ2 étant respectivement égaux à c/L et c/l.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 λ 1/2 and λ 2/2, λ 1 and λ 2 are 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 cases where it is desired to disorganize other acoustic modes, for example λ / 3, it is at other places along the length of the profiles that the partition 28 is placed, for example one-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.The efficiency of the waveguide can be increased by inserting in the inner chambers 30, 31 an acoustically absorbent material 32.

Ainsi qu'il est connu dans le domaine des vitrages isolants, un desséchant 34 est avantageusement disposé dans les profilés formant cadre intercalaire 161, des trous 36 percés dans ces profilés 161 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 l'intermédiaire des profilés de guide d'onde 20, 22, 24, 26.As is known in the field of insulating glass units, a desiccant 34 is advantageously arranged in the intermediate frame profiles 16 1 , holes 36 drilled in these profiles 16 1 and ending inside the profiles 20, 22, 24 , 26 of the waveguide, putting this desiccant 34 in communication with the air of the cavity 18, via the 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 161 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 by FIGS. 3 and 4 differs from the preceding one only in that the straight tubular sections 20, 22, 24, 26 of the waveguide simultaneously serve as profiles of the rigid intermediate frame 16 1 serving to keep spaced the two sheets of glass. Thus, the realization 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 162 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.In this embodiment, as is more particularly visible in FIG. 4, the butyl rubber beads 16 2 which seal with the glass sheets are deposited on the lateral edges of the waveguide sections and the 34, as well as possibly the acoustic absorbent 32 are disposed within these profiles.

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.Advantageously, as shown in Figure 4, the lateral sides of the tubular sections 20, 22, 24, 26 are provided with longitudinal grooves 33 located between the butyl rubber beads 16 2 and the cavity 18. These grooves are able to serve as a reservoir safety for butyl rubber or in general the bonding putty that could migrate to the clear view of the cavity 18 under the effect of gravity, temperature or vibration.

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 made in different ways, for example, it can be constituted by a throat 38 obtained by crushing two opposite walls of the profile (Figure 5) or a single wall of the profile (Figure 6). This is particularly convenient when the profiles 20, 22, 24, 26 are made of thermoplastic material; the profile is then crushed and heat-sealed. The partition may also be constituted by a buffer 39 with a high acoustic absorption capacity (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 a sa surface et ayant une hauteur égale à l'épaisseur des parois des profiles 20, 22, 24, 26.The partition may also be made using a bulkhead connector 40 as shown in FIG. 8. This connector is constituted by a section of tubular section 41 of short length, for example approximately 2 to 5 cm, of section slightly smaller than that of the profiles 20, 22, 24, 26 of the waveguide, but of the same shape, so as to fit into them. It is provided in the middle of its length with a partition 28 and on its periphery, for example in line with the partition 28, with a rib 42 raised in relation to its surface and having a height equal to the thickness walls of the profiles 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.Thus, two half-lengths of profiles fitted on this connector, will constitute in a simple way a waveguide section with a smooth outer surface, with a partition 28. It will be noted that the acoustic absorbent may also be disposed in this connector 40, on each side of the partition 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 bulkhead connector shown in FIG. 8 has longitudinal grooves 43 intended to receive the ribs 37 which project inside the sections 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 161.FIG. 9 shows in perspective a bracket 50 serving to assemble the profiles 20, 22, 24, 26 to facilitate their placement inside the double glazing, and in particular to ensure the continuity and solidarity of the double spacer frame. glazing insofar as, as shown in FIGS. 3 and 4, the profiles 20, 22, 24, 26 at the same time act as an interim framework 16 1 .

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 the profiles. The wings are terminated by end pieces 56, 58 of reduced section so as to fit inside the ends of the profiles. The brackets have in their inner corner windows 54 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 162 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 163.The manufacture of the acoustic insulating glazing unit of FIG. 3 is as follows: firstly, the four sections 20, 22, 24, 26 are formed by means of the partition connectors 40 and portions of tubular sections that are fitted onto these sections. 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 the 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. Is then deposited cords 16 2 butyl rubber on the side faces of the insert frame thus formed and then glue the two glass sheets 12, 14 of the spacer frame. Then injected into the groove formed at the periphery of the glazing a sealed plastic cord 16 3 .

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.Note 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 square limit to a fair value the length of introduction. tips inside the profiles. It will be noted that the upper and lower faces of the spacer frame are flat over their entire surface, and have no extra thickness. The two sheets of glass therefore bear uniformly on 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 made on demand, in one piece with the desired dimensions, for example by folding a long tubular section according to the shape and dimensions of the glazing to be formed and welding or in assembling in another way 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.Holes are then drilled in the inner corners of this frame to communicate the interior with the cavity 18. Here again, the partitions 28 will be made by one of the methods described above, for example, by introducing into the interior of the profile, before folding, four absorbent pads that are positioned so that, after folding, they are in the middle of the four sides of the guide, or, especially when it comes to thermoplastic profiles, by crushing the profile to wanted places and by heat-sealing.

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 161, 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.In order to produce the glazing of the variant shown in FIGS. 1 and 2, the profiles 20, 22, 24, 26 are formed for example by means of tubes and partition connectors. A butyl rubber bead is then deposited on the lateral faces of each profile 20, 22, 24 and 26 thus formed. These profiles are then deposited inside a window during manufacture and already having its lower glass sheet 12 and its rigid intermediate frame 16 1 , bonded to this sheet 12. The profiles 20, 22, 24, 26 being in place, juxtaposed to the different sides of the spacer frame, the glazing is closed by putting in place the second glass sheet 14.

De tels vitrages selon l'invention sont particulièrement efficaces pour des lames d'air de 16 à 24 mm de hauteur.Such glazings according to the invention are particularly effective for air slats 16 to 24 mm in height.

Claims (12)

  1. Acoustic insulating glazing unit of the type comprising:
    - 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 (18) filled with a gas; and
    - a waveguide fastened between the glass sheets, internal to the insert frame, the waveguide consisting of at least one straight tubular section (20, 22, 24, 26) placed on the periphery of the cavity (18) filled with gas, along one side of the glazing unit
    characterized in that this section is 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 (18) through the ends of the sections.
  2. Glazing unit according to Claim 1, characterized in that it includes several, especially four, waveguide sections (20, 22, 24, 26) placed along the length of each of the sides of the cavity (18).
  3. Glazing unit according to either of Claims 1 and 2, characterized in that the partition (28) of each section is placed approximately halfway along its length.
  4. Glazing unit according to either of Claims 1 and 2, characterized in that the partition (28) is placed one third the way or one quarter the way along the length of the section.
  5. Glazing unit according to one of the preceding claims, characterized in that the partition is produced by one of the means belonging to the following group:
    partition connector (40), heat-welded constriction (38) in a thermoplastic section, buffer (39) of acoustically absorbent material or partition slid into the section.
  6. Glazing unit according to one of the preceding claims, characterized in that the insert frame (161) of the insulating glazing unit and the waveguide sections (20, 22, 24, 26) are separate and juxtaposed.
  7. Acoustic insulating glazing unit of the type comprising:
    - 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 (18) filled with a gas; and
    - a waveguide fastened between the glass sheets, internal to the insert frame, the waveguide consisting of at least one straight tubular section (20, 22, 24, 26) placed on the periphery of the cavity (18) filled with gas, along one side of the glazing unit, and the waveguide section acting at the same time as the insert frame,
    characterized in that this section is 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 (18) through the ends of the sections.
  8. Glazing unit according to one of the preceding claims, characterized in that the waveguide sections (20, 22, 24, 26) are provided, along their faces in contact with the glass sheets (12, 14), with a longitudinal groove (33) forming a safety reservoir for retaining, in the case of creep, the material (162) which serves to adhesively bond the glass sheets (12, 14) to the insert frame (161).
  9. Glazing unit according to one of the preceding claims, characterized in that the sections are joined together in the form of a continuous frame having the same shape as the glazing unit, apertures (54) being cut into the inner corners of the said frame in order to make the internal chambers of the sections communicate with the cavity (18).
  10. Glazing unit according to Claim 1, characterized in that the sections (20, 22, 24, 26) are separate and their internal chambers (30, 31) communicate with the cavity (18) through the open ends of the sections.
  11. Glazing unit according to Claim 9, characterized in that the sections (20, 22, 24, 26) are joined together by means of tubular corner pieces (50), the legs (56, 58) of which fit into the ends of the sections, the said corner pieces having an orifice (54) at their internal edge in order to make the internal space of the sections communicate with the cavity of the glazing unit.
  12. Glazing unit 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
FR9907220A FR2794792B1 (en) 1999-06-08 1999-06-08 ACOUSTIC INSULATING GLASS WITH PARTITIONED WAVEGUIDE
FR9907220 1999-06-08
PCT/FR2000/001501 WO2000075473A1 (en) 1999-06-08 2000-05-31 Partitioned wave-guide sound insulation glazing

Publications (2)

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

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

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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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JP6382141B2 (en) * 2015-03-26 2018-08-29 日本板硝子株式会社 Double glazing
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EP1183437A1 (en) 2002-03-06
PL197058B1 (en) 2008-02-29
DE60031528D1 (en) 2006-12-07
CZ20014372A3 (en) 2002-04-17
KR20020010614A (en) 2002-02-04
NO20015939D0 (en) 2001-12-04
FR2794792B1 (en) 2001-08-31
DE60031528T2 (en) 2007-08-23
WO2000075473A1 (en) 2000-12-14
BR0011384A (en) 2002-04-23
FR2794792A1 (en) 2000-12-15
PL352196A1 (en) 2003-08-11
DK1183437T3 (en) 2007-02-26
ES2275516T3 (en) 2007-06-16
CA2373019C (en) 2008-07-15
JP2003501572A (en) 2003-01-14
CA2373019A1 (en) 2000-12-14
NO20015939L (en) 2001-12-04
NO324996B1 (en) 2008-01-14
ATE343699T1 (en) 2006-11-15
US6668974B1 (en) 2003-12-30
KR100716129B1 (en) 2007-05-10

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