EP0569298B1 - Valve for fire resistant multiple glazing unit - Google Patents

Valve for fire resistant multiple glazing unit Download PDF

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Publication number
EP0569298B1
EP0569298B1 EP93401162A EP93401162A EP0569298B1 EP 0569298 B1 EP0569298 B1 EP 0569298B1 EP 93401162 A EP93401162 A EP 93401162A EP 93401162 A EP93401162 A EP 93401162A EP 0569298 B1 EP0569298 B1 EP 0569298B1
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EP
European Patent Office
Prior art keywords
corner
glazing
pane
piece
fire
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Expired - Lifetime
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EP93401162A
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German (de)
French (fr)
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EP0569298A1 (en
Inventor
Yves Demars
Jean-Claude Le Cocq
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Saint Gobain Vitrage SA
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Saint Gobain Vitrage SA
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    • 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
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/165—Fireproof windows
    • 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
    • E06B3/663—Elements for spacing panes
    • E06B3/667—Connectors therefor

Definitions

  • the invention relates to insulating glazing and more particularly, fire-resistant insulating glazing.
  • thermo-resistant glazing or fire-resistant glazing G When it is desired to equip the exterior facade of a building with glazing which remains in place during a fire and thus prevents the propagation of flames from one floor to another or when it is desired to glazing a partition of glazed parts which slow down the spread of a fire from one room to another, so-called flame-resistant glazing or fire-resistant glazing G according to DIN 4102 is used, they are made up of suitable glasses, borosilicates or glasses having undergone a special hardening and mounted in a special way. To avoid excessive heat loss or for reasons of sound insulation, these special glasses are often mounted in multiple glazing, two or more elements being placed parallel to each other with a space of air or dry gases between them.
  • This type of mounting of fire-resistant glazing into insulating glazing can also relate to fire-resistant glazing (glazing F according to DIN 4102), in this case, in general, only one of the elements is fire-resistant, the other being either flame retardant glass or plain glass.
  • French patent FR 2 538 025 proposes to drill a hole in one of the glasses constituting the insulating glazing and to equip it with an airtight stopper made of a fusible material.
  • This device although adapted to its function, has two types of drawbacks, aesthetic and technical. The first point is obvious, as for the technical drawback, it is linked to the process for manufacturing fire-resistant glazing. These products are often produced in several different places: monolithic element in special glass on one side and insulating glass in a second step, on the other.
  • the drilling operation for the flame-resistant glazing must be programmed as soon as the monolithic element is manufactured and before it has undergone any tempering treatment.
  • the other technique involves the installation of a balancing system in the metal profile which is used to maintain the spacing of the insulating glass panes.
  • a balancing system in the metal profile which is used to maintain the spacing of the insulating glass panes.
  • Such a system described in European patent EP-O 266 607 B does not have the drawbacks of drilling glass and in particular, can be implemented at the time of manufacture of the insulating glazing.
  • it is a complicated system which requires the drilling of the intermediate profile and the installation of a device composed of two elements associated by two different adhesives and the installation of which is delicate. It is also found that this system requires the exercise of a very specific task on the part of the personnel who manufactures the insulating glazing.
  • Document GB-A-2 101 664 describes a multiple glazing with at least one plate protecting against fire in which an intermediate steel frame is equipped with a pressure-balancing valve in Wood alloy.
  • a variant shows a traditional hollow intermediate frame crossed by an aluminum tube closed by a Wood alloy screw.
  • the invention aims to provide a pressure balancing valve in an insulating glazing during a fire which does not require any particular care, neither during the manufacture of the fire panels themselves, nor during the manufacture insulating glass. Its operation must also be secure and its cost limited.
  • the invention provides a device for balancing the pressures between the internal atmosphere of an insulating glass and the outside during a fire and using a cover made of fusible material which is located in the assembly corner of the insulating glass in which the seal of fusible material is placed on a projecting part with respect to the rest of the surface of the assembly corner directed towards the inside of the insulating glazing.
  • the cover made of fusible material constitutes the bottom of a blind hole on the side of the assembly corner directed towards the inside of the insulating glazing.
  • the entire assembly of the assembly corner is of fusible material and then the walls of the blind hole are lined with a less fusible material such as aluminum.
  • the blind hole opens to the outside of the glazing in a zone which projects from the surrounding surfaces.
  • the invention also relates to insulating glazing, the intermediate frame of which has at least one assembly corner comprising a connection hole between the internal atmosphere of the glazing and the outside closed off on the internal side by a cover made of a fusible material and located on a projecting part.
  • the assembly corner (s) with connection hole and fusible cover are symmetrical with respect to the bisector plane of the corner angle and advantageously, the other corners without hole or cover are connected with the profiles in the same way as the first ones.
  • the essential advantage of the device of the invention is that it can be put in place by non-specialized personnel when the insulating glazing itself is produced, that is to say without disturbing the previous stages of production. anti-fire product.
  • the principle of the device of the invention consists in equipping with a communication hole and a fusible cover the assembly corner, the mounting and association of which with the intermediate profiles to constitute the frame which holds the two glass plates together. , is done in the usual way.
  • FIG. 1 there is shown an embodiment.
  • the wedge which is made entirely of a non-flammable material which melts at low temperature such as for example a Wood alloy is asymmetrical.
  • the weight composition of the alloy is advantageously as follows: Bismuth 50% - Lead 25% - Tin 12.5% and Cadmium 12.5%. Such a composition melts at 70 ° C.
  • the left branch in the figure has exactly the usual shape of the corners for assembling insulating glazing. As we know, the forms that such can take corners are varied, they are determined mainly according to the conditions to be respected so that the sealing of the glazing is perfect, here the only additional requirement is that the shape is adapted to the shape of the profile and the material of the corner.
  • the shape of the left wing of the corner retained here is identical to that of a usual zamack corner.
  • the second corner wing in Figure 1 consists of two parts, part 2, the furthest from angle 3 has exactly the same shape as wing 1 and part 4 has two projections, one towards the interior of the glazing 5 and the other towards the exterior 6.
  • This part is further equipped with a blind hole 7 which does not open into the interior space of the insulating glazing.
  • a wall 8 which constitutes the fusible seal of the hole 7.
  • the representation of the figure shows at 9 a circle which does not exist when the corner is made of a single material such as the alloy from Wood.
  • the corner 1 is made of a traditional metallic material, for example brass treated to guarantee good adhesion to sealants while the cover 8 is made of a fusible material such as the alloy from Wood.
  • the function of the inner projection 5 is to allow rapid exposure of the cover 8 to the flames to guarantee its immediate fusion. This is essential if you want to avoid an excessive rise in pressure in the insulating glass.
  • FIG. 2 there is shown a section of a corner identical to that of Figure 1, in its variant made entirely of fusible material.
  • the walls of the blind hole 7 are jacketed using a material whose melting point is higher than that of the Wood alloy and which has good adhesion properties compared to sealants sealing the insulating glass so that it stays in place no matter what.
  • It is for example aluminum in the form of a tube 10 forced into the hole 7.
  • the wall of the cover 8 is the thinnest possible so as to melt quickly and not to risk blocking the passage in the lumen of the tube 10.
  • the tube 10 for its part preferably projects beyond the outer wall of the corner at the time of manufacture. This prevents it from filling up with the putty (polysulfide or, preferably silicone) which ensures the connection between the glasses and the intermediate frame.
  • the length of the tube 10 is such that its outer edge is flush with the edge of the glasses so as to prevent it from interfering with the installation of the glazing in its rebate, it is also possible to provide it overflowing and to cut it after taking putty. It is obvious that in the case illustrated in FIG. 2, that is to say when the whole corner is made of fusible material the projection 6 is optional because its role is the same as that of the overflowing tube 10: avoid obstruction of the blind hole with putty.
  • an insulating glazing with a variable number of corners with fusible cover.
  • the upper corners will be fitted.
  • the other angles of the glazing will either have the usual corners of insulating glazing or corners of identical shape to those of the invention but of a lower cost such as, for example, zamack corners.
  • equipping the glazing with, for example, one or two corners similar to those of FIG. 3, it is interesting that the other corners (without hole or fusible cover) have the same external shape as in FIG. 3 because, then, the organization of the cutting of the intermediate profiles and the assembly are simplified.
  • a corner similar to that of FIG. 2, assembled to the intermediate profiles using a polysulphide putty was tested with two 6 mm moderately toughened glasses (93 megapascals of surface compressive stress) in a standard fire test.
  • the corner according to the invention being in a lower corner of the glazing. Venting was carried out one minute after the start of the test, for an oven temperature of 340 ° C, when neither of the two glasses was yet broken.
  • the device of the invention which has just been described allows when double glazing, in particular double flame-resistant glazing (glazing G) or fire-resistant glazing (glazing F according to DIN 4102) is exposed to a fire , to avoid any internal overpressure and thus to prevent any untimely or dangerous breakage.
  • double glazing in particular double flame-resistant glazing (glazing G) or fire-resistant glazing (glazing F according to DIN 4102) is exposed to a fire , to avoid any internal overpressure and thus to prevent any untimely or dangerous breakage.
  • Such a device which fulfills its function during the fire or the fire test, is perfectly waterproof throughout the life of the insulating glazing. In fact, no new moisture passage is created compared to what exists in proven insulating glazing.
  • the corners of the invention are particularly easy to implement and their reliability during a fire does not depend in any way on the quality of the work provided during their installation (which was not the case of previous systems).

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Special Wing (AREA)
  • Glass Compositions (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

In a multiple glazing unit with a rigid interposed frame, a special assembly wedge has been provided. This possesses a hole for communication between the inside and the outside, this hole being stopped up on the inside with a meltable material which frees the communication in the event of a fire. This permits a balancing of the pressures and prevents the shattering of the glazing unit, and it can be used in particular for flame-proof multiple glazing units. <IMAGE>

Description

L'invention concerne les vitrages isolants et plus particulièrement, les vitrages isolants anti-feu.The invention relates to insulating glazing and more particularly, fire-resistant insulating glazing.

Lorsqu'on désire équiper la façade extérieure d'un bâtiment avec des vitrages qui restent en place lors d'un incendie et empêchent ainsi la propagation des flammes d'un étage à l'autre ou quand on désire vitrer une cloison de parties vitrées qui freinent la propagation d'un incendie d'une pièce à l'autre, on utilise des vitrages dits pare-flammes ou encore vitrages anti-feu G selon la norme DIN 4102, ils sont constitués de verres adaptés, boro-silicates ou verres ayant subi une trempe spéciale et montés de manière particulière. Pour éviter la trop grande déperdition thermique ou pour des raisons d'isolation acoustique, ces verres spéciaux sont souvent montés en vitrages multiples, deux ou plusieurs éléments étant posés parallèlement l'un à l'autre avec un espace d'air ou de gaz secs entre eux.When it is desired to equip the exterior facade of a building with glazing which remains in place during a fire and thus prevents the propagation of flames from one floor to another or when it is desired to glazing a partition of glazed parts which slow down the spread of a fire from one room to another, so-called flame-resistant glazing or fire-resistant glazing G according to DIN 4102 is used, they are made up of suitable glasses, borosilicates or glasses having undergone a special hardening and mounted in a special way. To avoid excessive heat loss or for reasons of sound insulation, these special glasses are often mounted in multiple glazing, two or more elements being placed parallel to each other with a space of air or dry gases between them.

Ce type de montage de vitrages anti-feu en vitrages isolants peut également concerner des vitrages coupe-feu (vitrages F selon la norme DIN 4102), dans ce cas, en général, un seul des éléments est coupe-feu, l'autre étant soit en verre pare-flamme, soit en verre ordinaire.This type of mounting of fire-resistant glazing into insulating glazing can also relate to fire-resistant glazing (glazing F according to DIN 4102), in this case, in general, only one of the elements is fire-resistant, the other being either flame retardant glass or plain glass.

Dans les deux cas précédents, vitrages isolants pare-flamme ou vitrages isolants coupe-feu, il faut éviter que, lors d'un incendie, l'échauffement du gaz contenu dans l'espace entre les deux éléments de vitrage ne provoque, à cause de la surpression qu'il entraîne, la casse violente des verres qui libéreraient alors l'ouverture et laisseraient le feu se propager. Un tel phénomène, explosion d'un vitrage isolant lors d'un incendie, est même à craindre avec les vitrages isolants habituels. En effet, si un tel vitrage isolant est exposé aux flammes lors d'un incendie, la surpression au moment de la casse thermique des verres (ou même avant celle-ci) peut provoquer la projection de larges fragments coupants très dangereux.In the two previous cases, flame-retardant insulating glazing or fire-resistant insulating glazing, it is necessary to prevent, during a fire, the heating of the gas contained in the space between the two glazing elements, of the overpressure it causes, the violent breaking of the glasses which would then release the opening and allow the fire to spread. Such a phenomenon, explosion of insulating glass during a fire, is even to be feared with insulating glass usual. Indeed, if such insulating glazing is exposed to flames during a fire, the overpressure at the time of the thermal break of the glasses (or even before it) can cause the projection of large, very dangerous cutting fragments.

Mais dans les trois cas précédents (pare-flammes, coupe-feu ou vitrage isolant traditionnel), si l'équilibrage des pressions interne et externe du vitrage isolant pouvait se produire dès le début de l'incendie, le vitrage pare-flamme et le vitrage coupe-feu resteraient en place et fonctionneraient comme s'ils étaient montés en vitrages monolithiques, quant aux éléments du vitrage isolant classique, ils casseraient moins dangereusement.But in the three previous cases (flame arrestor, firebreak or traditional insulating glazing), if the internal and external pressure balancing of the insulating glazing could occur from the start of the fire, the flame arresting glazing and the fire-resistant glazing would remain in place and operate as if it were mounted in monolithic glazing, while the elements of conventional insulating glazing would break less dangerously.

Des systèmes qui permettent d'équilibrer les pressions dès le début d'un incendie ont déjà été développés. C'est ainsi que le brevet français FR 2 538 025 propose de réaliser un perçage dans l'un des verres constituant le vitrage isolant et de l'équiper d'un bouchon hermétique réalisé en un matériau fusible. Ce dispositif bien qu'adapté à sa fonction, présente deux types d'inconvénients, esthétique et technique. Le premier point est évident, quant à l'inconvénient technique, il est lié au procédé de fabrication des vitrages anti-feu. Ces produits sont souvent réalisés en plusieurs endroits différents : élément monolithique en verre spécial d'un côté et vitrage isolant en un deuxième temps, de l'autre. L'opération de perçage du vitrage pare-flamme doit être programmée dès la fabrication de l'élément monolithique et avant qu'il ait subi un éventuel traitement de trempe. Cette contrainte entraîne une procédure administrative lourde. Dans le cas de verres feuilletés-trempés comme ceux décrits dans le brevet européen EP-0 219 801 B, il est pratiquement impossible d'obtenir des perçages qui - après trempe puis feuilletage - se trouvent alignés. Par ailleurs, le fait d'avoir exécuté un perçage dans un verre trempé le fragilise, ce qui pourrait perturber son bon fonctionnement et gêner son maintien en place au début d'un incendie.Systems that allow pressure balancing from the start of a fire have already been developed. Thus, French patent FR 2 538 025 proposes to drill a hole in one of the glasses constituting the insulating glazing and to equip it with an airtight stopper made of a fusible material. This device, although adapted to its function, has two types of drawbacks, aesthetic and technical. The first point is obvious, as for the technical drawback, it is linked to the process for manufacturing fire-resistant glazing. These products are often produced in several different places: monolithic element in special glass on one side and insulating glass in a second step, on the other. The drilling operation for the flame-resistant glazing must be programmed as soon as the monolithic element is manufactured and before it has undergone any tempering treatment. This constraint involves a cumbersome administrative procedure. In the case of laminated-toughened glasses such as those described in European patent EP-0 219 801 B, it is practically impossible to obtain holes which - after tempering and then laminating - are aligned. In addition, the fact of having carried out a drilling in a tempered glass weakens it, which could disrupt its proper functioning and hinder its retention in place at the start of a fire.

L'autre technique prévoit l'installation d'un système d'équilibrage dans le profilé métallique qui sert à maintenir l'écartement des verres du vitrage isolant. Un tel système, décrit dans le brevet européen EP-O 266 607 B ne présente pas les inconvénients du perçage du verre et en particulier, peut se mettre en oeuvre au moment de la fabrication du vitrage isolant. Cependant, il s'agit d'un système compliqué qui nécessite le perçage du profilé intercalaire et la mise en place d'un dispositif composé de deux éléments associés par deux colles différentes et dont la mise en place est délicate. On constate aussi que ce système nécessite l'exercice d'une tâche très spécifique de la part du personnel qui fabrique le vitrage isolant.The other technique involves the installation of a balancing system in the metal profile which is used to maintain the spacing of the insulating glass panes. Such a system, described in European patent EP-O 266 607 B does not have the drawbacks of drilling glass and in particular, can be implemented at the time of manufacture of the insulating glazing. However, it is a complicated system which requires the drilling of the intermediate profile and the installation of a device composed of two elements associated by two different adhesives and the installation of which is delicate. It is also found that this system requires the exercise of a very specific task on the part of the personnel who manufactures the insulating glazing.

Le document GB-A-2 101 664 décrit un vitrage multiple avec au moins une plaque protégeant du feu dans lequel un cadre intercalaire en acier est équipé d'une valve d'équilibrage de pressions en alliage de Wood. Une variante montre un cadre intercalaire creux traditionnel traversé par un tube d'aluminium obturé par une vis en alliage de Wood. Ces dispositifs sont destinés à équilibrer les pressions entre l'intérieur et l'extérieur du vitrage multiple dans les 15 premières minutes d'un test au feu selon DIN 4102.Document GB-A-2 101 664 describes a multiple glazing with at least one plate protecting against fire in which an intermediate steel frame is equipped with a pressure-balancing valve in Wood alloy. A variant shows a traditional hollow intermediate frame crossed by an aluminum tube closed by a Wood alloy screw. These devices are intended to balance the pressures between the interior and exterior of the multiple glazing in the first 15 minutes of a fire test according to DIN 4102.

L'invention se donne pour mission de fournir une valve d'équilibrage des pressions dans un vitrage isolant lors d'un incendie qui ne nécessite aucun soin particulier, ni lors de la fabrication des panneaux anti-feu proprement dits, ni lors de la fabrication du vitrage isolant. Son fonctionnement doit également être sûr et son coût limité.The invention aims to provide a pressure balancing valve in an insulating glazing during a fire which does not require any particular care, neither during the manufacture of the fire panels themselves, nor during the manufacture insulating glass. Its operation must also be secure and its cost limited.

L'invention propose un dispositif destiné à équilibrer les pressions entre l'atmosphère interne d'un vitrage isolant et l'extérieur lors d'un incendie et utilisant un opercule fait en matériau fusible qui est situé dans le coin d'assemblage du vitrage isolant dans lequel l'opercule en matériau fusible est placé sur une partie en ressaut par rapport au reste de la surface du coin d'assemblage dirigée vers l'intérieur du vitrage isolant. De préférence, l'opercule en matériau fusible constitue le fond d'un trou borgne du côté du coin d'assemblage dirigé vers l'intérieur du vitrage isolant. Eventuellement, tout l'ensemble du coin d'assemblage est en matériau fusible et alors les parois du trou borgne son chemisées avec un matériau moins fusible tel que l'aluminium. De préférence, le trou borgne débouche à l'extérieur du vitrage dans une zone en ressaut par rapport aux surfaces environnantes.The invention provides a device for balancing the pressures between the internal atmosphere of an insulating glass and the outside during a fire and using a cover made of fusible material which is located in the assembly corner of the insulating glass in which the seal of fusible material is placed on a projecting part with respect to the rest of the surface of the assembly corner directed towards the inside of the insulating glazing. Preferably, the cover made of fusible material constitutes the bottom of a blind hole on the side of the assembly corner directed towards the inside of the insulating glazing. Optionally, the entire assembly of the assembly corner is of fusible material and then the walls of the blind hole are lined with a less fusible material such as aluminum. Preferably, the blind hole opens to the outside of the glazing in a zone which projects from the surrounding surfaces.

L'invention concerne aussi un vitrage isolant dont le cadre intercalaire possède au moins un coin d'assemblage comportant un trou de liaison entre l'atmosphère interne du vitrage et l'extérieur obturé du côté intérieur par un opercule fait d'un matériau fusible et situé sur une partie en ressaut. De préférence, le ou les coins d'assemblage avec trou de liaison et opercule fusible sont symétriques par rapport au plan bissecteur de l'angle du coin et avantageusement, les autres coins sans trou ni opercule se raccordent avec les profilés de la même manière que les premiers.The invention also relates to insulating glazing, the intermediate frame of which has at least one assembly corner comprising a connection hole between the internal atmosphere of the glazing and the outside closed off on the internal side by a cover made of a fusible material and located on a projecting part. Preferably, the assembly corner (s) with connection hole and fusible cover are symmetrical with respect to the bisector plane of the corner angle and advantageously, the other corners without hole or cover are connected with the profiles in the same way as the first ones.

L'avantage essentiel du dispositif de l'invention est de permettre sa mise en place par un personnel non spécialisé au moment de la réalisation du vitrage isolant lui-même, c'est-à-dire sans perturber les phases précédentes de l'élaboration du produit anti-feu.The essential advantage of the device of the invention is that it can be put in place by non-specialized personnel when the insulating glazing itself is produced, that is to say without disturbing the previous stages of production. anti-fire product.

La description et les figures qui suivent permettront de comprendre l'invention dans tous ses détails et d'en apprécier les avantages.The description and the figures which follow will make it possible to understand the invention in all its details and to appreciate the advantages thereof.

Parmi les figures :

  • * la figure 1 représente un coin conforme à l'invention,
  • * la figure 2 montre la même variante en coupe et,
  • * la figure 3, une autre variante également en coupe.
Among the figures:
  • FIG. 1 represents a corner according to the invention,
  • * Figure 2 shows the same variant in section and,
  • * Figure 3, another variant also in section.

Le principe du dispositif de l'invention consiste à équiper d'un trou de communication et d'un opercule fusible le coin d'assemblage dont le montage et l'association avec les profilés intercalaires pour constituer le cadre qui maintient ensemble les deux plaques vitrées, se fait de la manière habituelle.The principle of the device of the invention consists in equipping with a communication hole and a fusible cover the assembly corner, the mounting and association of which with the intermediate profiles to constitute the frame which holds the two glass plates together. , is done in the usual way.

Sur la figure 1, on a représenté un exemple de réalisation. Le coin qui est constitué tout entier d'un matériau ininflammable et fondant à basse température tel que par exemple un alliage de Wood est dissymétrique. La composition pondérale de l'alliage est avantageusement la suivante : Bismuth 50 % - Plomb 25 % - Etain 12,5 % et Cadmium 12,5 %. Une telle composition fond à 70°C. La branche de gauche sur la figure a exactement la forme habituelle des coins d'assemblage de vitrages isolants. Comme on sait, les formes que peuvent prendre de tels coins sont variées, elles sont déterminées principalement en fonction des conditions à respecter pour que l'étanchéïté du vitrage soit parfaite, ici la seule exigence supplémentaire est que la forme soit adaptée à la forme du profilé et au matériau du coin. La forme de l'aile gauche du coin retenue ici est identique à celle d'un coin habituel en zamack.In Figure 1, there is shown an embodiment. The wedge which is made entirely of a non-flammable material which melts at low temperature such as for example a Wood alloy is asymmetrical. The weight composition of the alloy is advantageously as follows: Bismuth 50% - Lead 25% - Tin 12.5% and Cadmium 12.5%. Such a composition melts at 70 ° C. The left branch in the figure has exactly the usual shape of the corners for assembling insulating glazing. As we know, the forms that such can take corners are varied, they are determined mainly according to the conditions to be respected so that the sealing of the glazing is perfect, here the only additional requirement is that the shape is adapted to the shape of the profile and the material of the corner. The shape of the left wing of the corner retained here is identical to that of a usual zamack corner.

La seconde aile du coin de la figure 1 se compose de deux parties, la partie 2, la plus éloignée de l'angle 3 a exactement la même forme que l'aile 1 et la partie 4 possède deux ressauts, l'un vers l'intérieur du vitrage 5 et l'autre vers l'extérieur 6. Cette partie est de plus équipée d'un trou borgne 7 qui ne débouche pas dans l'espace intérieur du vitrage isolant. On a en effet laissé subsister une paroi 8 qui constitue l'opercule fusible du trou 7. La représentation de la figure fait apparaître en 9 un cercle qui n'existe pas lorsque le coin est fait d'un seul matériau tel que l'alliage de Wood. Sur la figure, on a représenté le cas où le coin 1 est réalisé en un matériau métallique traditionnel, par exemple en laiton traité pour garantir une bonne adhérence sur les mastics tandis que l'opercule 8 est en un matériau fusible tel que l'alliage de Wood. La fonction du ressaut intérieur 5 est de permettre une exposition rapide de l'opercule 8 aux flammes pour garantir sa fusion immédiate. Ce point est essentiel si l'on veut éviter une montée trop forte de la pression dans le vitrage isolant.The second corner wing in Figure 1 consists of two parts, part 2, the furthest from angle 3 has exactly the same shape as wing 1 and part 4 has two projections, one towards the interior of the glazing 5 and the other towards the exterior 6. This part is further equipped with a blind hole 7 which does not open into the interior space of the insulating glazing. We have in fact left a wall 8 which constitutes the fusible seal of the hole 7. The representation of the figure shows at 9 a circle which does not exist when the corner is made of a single material such as the alloy from Wood. In the figure, there is shown the case where the corner 1 is made of a traditional metallic material, for example brass treated to guarantee good adhesion to sealants while the cover 8 is made of a fusible material such as the alloy from Wood. The function of the inner projection 5 is to allow rapid exposure of the cover 8 to the flames to guarantee its immediate fusion. This is essential if you want to avoid an excessive rise in pressure in the insulating glass.

Sur la figure 2, on a représenté une coupe d'un coin identique à celui de la figure 1, dans sa variante entièrement réalisée en matériau fusible. Dans ce cas, les parois du trou borgne 7 sont chemisées à l'aide d'un matériau dont le point de fusion est supérieur à celui de l'alliage de Wood et qui possède de bonnes propriétés d'adhérence par rapport aux mastics scellant le vitrage isolant de manière à rester en place quoi qu'il arrive. Il s'agit par exemple d'aluminium sous la forme d'un tube 10 enfoncé à force dans le trou 7. Comme on le voit sur la figure 2, la paroi de l'opercule 8 est la plus mince possible de manière à fondre rapidement et à ne pas risquer d'obturer le passage dans la lumière du tube 10. Mais son épaisseur doit être suffisante pour rester étanche au passage des gaz et en particulier à la vapeur d'eau pendant la durée de vie du vitrage et également, pour avoir une tenue mécanique suffisante ; avec l'alliage de Wood, une épaisseur de 2 à 3 mm est satisfaisante. Le tube 10 quant à lui dépasse de préférence la paroi externe du coin au moment de la fabrication. Cela permet d'éviter qu'il ne se remplisse du mastic (polysulfure ou, de préférence silicone) qui assure la liaison entre les verres et le cadre intercalaire. En général, la longueur du tube 10 est telle que sa bordure externe affleure au niveau du bord des verres de manière à éviter qu'il gêne la pose du vitrage dans sa feuillure, il est également possible de le prévoir débordant et de le couper après la prise du mastic. Il est évident que dans le cas illustré figure 2, c'est-à-dire lorsque tout le coin est constitué du matériau fusible le ressaut 6 est facultatif car son rôle est le même que celui du tube 10 débordant : éviter l'obstruction du trou borgne par du mastic.In Figure 2, there is shown a section of a corner identical to that of Figure 1, in its variant made entirely of fusible material. In this case, the walls of the blind hole 7 are jacketed using a material whose melting point is higher than that of the Wood alloy and which has good adhesion properties compared to sealants sealing the insulating glass so that it stays in place no matter what. It is for example aluminum in the form of a tube 10 forced into the hole 7. As can be seen in FIG. 2, the wall of the cover 8 is the thinnest possible so as to melt quickly and not to risk blocking the passage in the lumen of the tube 10. But its thickness must be sufficient to remain impervious to the passage of gases and in particular to water vapor during the service life glazing and also, to have sufficient mechanical strength; with Wood's alloy, a thickness of 2 to 3 mm is satisfactory. The tube 10 for its part preferably projects beyond the outer wall of the corner at the time of manufacture. This prevents it from filling up with the putty (polysulfide or, preferably silicone) which ensures the connection between the glasses and the intermediate frame. In general, the length of the tube 10 is such that its outer edge is flush with the edge of the glasses so as to prevent it from interfering with the installation of the glazing in its rebate, it is also possible to provide it overflowing and to cut it after taking putty. It is obvious that in the case illustrated in FIG. 2, that is to say when the whole corner is made of fusible material the projection 6 is optional because its role is the same as that of the overflowing tube 10: avoid obstruction of the blind hole with putty.

Le système qui vient d'être décrit est d'une mise en oeuvre très aisée, la seule précaution à prendre, est de prévoir un profilé intercalaire légèrement plus court du côte de l'aile 2 que du côté de l'aile 1.The system which has just been described is very easy to implement, the only precaution to be taken is to provide an intermediate profile slightly shorter on the side of wing 2 than on the side of wing 1.

Le système représenté figure 3 permet, grâce à la symétrie du coin par rapport à son plan bissecteur, de traiter les deux profilés intercalaires associés au coin de l'invention de la même manière. (Ils sont toutefois plus courts qu'avec les coins habituels car, alors en général, les profilés se rejoignent à l'intérieur du coin, ce qui n'est pas le cas ici). On voit en 11 le trou borgne dont l'axe se trouve dans le plan de symétrie du coin. Ce coin est ici fait d'un matériau peu fusible sur lequel l'alliage de Wood de l'opercule 12 adhère par soudure, comme c'est le cas par exemple du laiton. Le matériau du coin doit également permettre une bonne adhérence des mastics de scellement du vitrage isolant, éventuellement suite à un primage. La figure 3 montre également en coupe, le raccordement du coin avec le profilé intercalaire 13. Celui-ci est rempli de la manière habituelle, d'un désséchant 14. On voit également en 15, le mastic par exemple du silicone, qui avec la configuration de la figure, ne risque pas d'obturer le trou 11. Il est évident qu'ici aussi, l'ensemble du coin pourrait être constitué d'un matériau fusible mais il y aurait lieu alors également, de chemiser le trou 11.The system shown in Figure 3 allows, thanks to the symmetry of the corner with respect to its bisector plane, to treat the two intermediate profiles associated with the corner of the invention in the same way. (They are however shorter than with the usual corners because, then in general, the profiles meet inside the corner, which is not the case here). We see at 11 the blind hole whose axis is in the plane of symmetry of the corner. This corner is here made of a low-melt material on which the Wood alloy of the cover 12 adheres by welding, as is the case for example of brass. The material of the corner must also allow a good adhesion of sealants for sealing insulating glass, possibly following a primage. Figure 3 also shows in section, the connection of the corner with the intermediate profile 13. This is filled in the usual way, with a desiccant 14. We also see at 15, the sealant for example silicone, which with the configuration of the figure, there is no risk of closing the hole 11. It is obvious that here too, the whole of the corner could be made of a fusible material but it would then also be necessary to line the hole 11.

Selon l'invention, il est possible d'équiper un vitrage isolant d'un nombre variable de coins avec opercule fusible. De préférence, ce sont les coins supérieurs qui seront équipés. Les autres angles du vitrage auront soit les coins habituels des vitrages isolants soit des coins de forme identique à ceux de l'invention mais d'un coût moindre comme par exemple des coins en zamack. Quand on équipe le vitrage de par exemple un ou deux coins analogues à ceux de la figure 3, il est intéressant que les autres coins (sans trou ni opercule fusible) aient la même forme extérieure que sur la figure 3 car, alors, l'organisation de la découpe des profilés intercalaires et le montage sont simplifiés.According to the invention, it is possible to equip an insulating glazing with a variable number of corners with fusible cover. Preferably, the upper corners will be fitted. The other angles of the glazing will either have the usual corners of insulating glazing or corners of identical shape to those of the invention but of a lower cost such as, for example, zamack corners. When equipping the glazing with, for example, one or two corners similar to those of FIG. 3, it is interesting that the other corners (without hole or fusible cover) have the same external shape as in FIG. 3 because, then, the organization of the cutting of the intermediate profiles and the assembly are simplified.

Au lieu de prendre des précautions au moment de l'enduction avec le mastic d'assemblage du vitrage isolant, ou au lieu de laisser dépasser le tube de chemisage 10 comme sur la figure 2, il est possible de simplement prévoir un bouchon, éventuellement revêtu d'une substance anti-adhésive comme de la paraffine, qui bouche le trou 7 ou 11 ou le tube 10. Evidemment, ce bouchon devra impérativement être retiré dès que le mastic a durci.Instead of taking precautions when coating with the putty for assembling the insulating glazing, or instead of allowing the lining tube 10 to protrude as in FIG. 2, it is possible to simply provide a plug, possibly coated of a non-stick substance such as paraffin, which plugs hole 7 or 11 or tube 10. Obviously, this plug must imperatively be removed as soon as the putty has hardened.

Un coin analogue à celui de la figure 2, assemblé aux profilés intercalaires grâce à un mastic polysulfure a été testé avec deux verres de 6 mm moyennement trempés (93 mégapascals de contrainte de compression superficielle) dans un essai au feu normalisé. Le coin conforme à l'invention étant dans un angle inférieur du vitrage. La mise à l'atmosphère s'est effectuée une minute après le début de l'essai, pour une température de four de 340°C, alors qu'aucun des deux verres n'était encore cassé.A corner similar to that of FIG. 2, assembled to the intermediate profiles using a polysulphide putty was tested with two 6 mm moderately toughened glasses (93 megapascals of surface compressive stress) in a standard fire test. The corner according to the invention being in a lower corner of the glazing. Venting was carried out one minute after the start of the test, for an oven temperature of 340 ° C, when neither of the two glasses was yet broken.

Le dispositif de l'invention qui vient d'être décrit permet lorsqu'un double vitrage, en particulier, un double vitrage pare-flamme (vitrage G) ou coupe-feu (vitrage F selon la norme DIN 4102) est exposé à un incendie, d'éviter toute surpression interne et d'empêcher ainsi toute casse intempestive ou dangereuse.The device of the invention which has just been described allows when double glazing, in particular double flame-resistant glazing (glazing G) or fire-resistant glazing (glazing F according to DIN 4102) is exposed to a fire , to avoid any internal overpressure and thus to prevent any untimely or dangerous breakage.

Un tel dispositif qui remplit son office lors de l'incendie ou de l'essai au feu, est parfaitement étanche pendant toute la durée de vie du vitrage isolant. En effet aucun passage nouveau pour l'humidité n'est crée par rapport à ce qui existe dans les vitrages isolants qui ont fait leurs preuves.Such a device which fulfills its function during the fire or the fire test, is perfectly waterproof throughout the life of the insulating glazing. In fact, no new moisture passage is created compared to what exists in proven insulating glazing.

D'autre part, les coins de l'invention sont d'une mise en oeuvre particulièrement aisée et leur fiabilité lors d'un incendie ne dépend aucunement de la qualité du travail fourni lors de leur mise en place (ce qui n'était pas le cas des systèmes antérieurs).On the other hand, the corners of the invention are particularly easy to implement and their reliability during a fire does not depend in any way on the quality of the work provided during their installation (which was not the case of previous systems).

Claims (8)

  1. Device intended for balancing the pressures between the internal atmosphere of an insulating pane and the outside during a fire and using a plug (8, 12) of fusible material situated in the connecting corner-piece of the insulating pane, characterized in that the plug (8, 12) of fusible material is situated in a part (5) raised above the remainder of the surface of the connecting corner-piece and directed towards the interior of the insulating pane.
  2. Device according to Claim 1, characterized in that the plug (8, 12) of fusible material constitutes the base of a blind hole (7, 11) at the side of the connecting corner-piece towards the interior of the insulating pane.
  3. Device according to Claim 1 or 2, characterized in that the entirety of the connecting corner-piece is of fusible material.
  4. Device according to Claim 3, characterized in that the walls of the blind hole (7) are lined with a less fusible material (10), such as aluminium.
  5. Device according to Claim 4, characterized in that the blind hole leads out to the exterior of the pane in a zone that is raised relative to the surrounding surfaces.
  6. Insulating pane, characterized in that its intermediate frame possesses at least one connecting corner-piece comprising a connecting hole between the internal atmosphere of the pane and the outside, obturated on the inner side by a plug made of a fusible material and situated on a raised part.
  7. Pane according to Claim 6, characterized in that the connecting corner-piece or corner-pieces having a connecting hole and fusible plug are symmetrical about the bisecting plane of the angle of the corner-piece.
  8. Pane according to Claim 7, characterized in that the other corner-pieces without hole or plug join the intermediate profiles in an identical manner to the former.
EP93401162A 1992-05-07 1993-05-06 Valve for fire resistant multiple glazing unit Expired - Lifetime EP0569298B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9205624A FR2690946A1 (en) 1992-05-07 1992-05-07 Valve for fire-resistant insulating glass.
FR9205624 1992-05-07

Publications (2)

Publication Number Publication Date
EP0569298A1 EP0569298A1 (en) 1993-11-10
EP0569298B1 true EP0569298B1 (en) 1996-10-09

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ID=9429618

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Application Number Title Priority Date Filing Date
EP93401162A Expired - Lifetime EP0569298B1 (en) 1992-05-07 1993-05-06 Valve for fire resistant multiple glazing unit

Country Status (6)

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EP (1) EP0569298B1 (en)
AT (1) ATE144024T1 (en)
DE (1) DE69305224T2 (en)
DK (1) DK0569298T3 (en)
ES (1) ES2094498T3 (en)
FR (1) FR2690946A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69410175T2 (en) 1993-07-22 1998-12-17 Saint Gobain Vitrage Transparent, flame-retardant panel
DE19520562C1 (en) * 1995-06-06 1996-08-14 Brueder Eckelt & Co Glastech Fire protection glazing comprising two glass plates

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537017C3 (en) * 1975-08-20 1978-08-17 Bfg Glassgroup, Paris Spacer frame for insulating glass units
DE3037015A1 (en) * 1980-10-01 1982-05-06 Vereinigte Glaswerke Gmbh, 5100 Aachen SPACER FRAME FOR GEL FILLED FIRE RESISTANT MULTIPLE GLASS PANELS
DE3040038C2 (en) * 1980-10-23 1985-10-03 GGN Glashandels-Gesellschaft Nördlingen mbH & Co KG, 8860 Nördlingen Multi-pane insulating glass unit with gas filling holes in the corner angles of the spacer frame
DE3125597A1 (en) * 1981-06-30 1983-01-27 Schott Glaswerke, 6500 Mainz FIRE PROTECTION INSULATION GLAZING
FR2538025A1 (en) * 1982-12-20 1984-06-22 Conforglace Sa IMPROVEMENT IN THE FLAME PROTECTION PANELS
GB2139685A (en) * 1983-05-13 1984-11-14 Glaverbel Corner spacer member for hollow glazing units
DE9108812U1 (en) * 1990-07-17 1991-11-21 Kurz, Rolf, Dipl.-Ing., 5451 Melsbach Installation window with a concrete frame and glazing

Also Published As

Publication number Publication date
DK0569298T3 (en) 1997-03-10
FR2690946A1 (en) 1993-11-12
DE69305224D1 (en) 1996-11-14
ES2094498T3 (en) 1997-01-16
DE69305224T2 (en) 1997-04-24
ATE144024T1 (en) 1996-10-15
EP0569298A1 (en) 1993-11-10

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