EP3296499A1 - Hidden window frame and method of manufacturing the same - Google Patents

Abstract

The invention relates to a concealed opening joinery comprising an opening frame equipped with a glazing, the amounts and crosspieces of said opening frame are made of steel and assembled only by welding, without additional connecting piece, so as to form a single-piece frame without cutting line, after application of a paint finish, the outer face of said opening frame ending in a bearing surface, parallel to said glazing, the establishment of said glazing on said bearing surface being effected by said outer face .

Description

1. Field of the invention

The field of the invention is that of the building, and, more specifically, joinery intended to equip the bays of a building.

More specifically, the invention relates to doors, windows and French doors to French opening.

Such carpentry includes a frame, or fixed part secured to the building, and one or more openings. Most of the industrially manufactured joinery is made of PVC, wood or aluminum or, as proposed by the applicant of the present patent application under the trademark M3D (registered trademark) in a combination of these materials.

2. Prior Art

• les ouvrants visibles à parclose (figure 1A) ;
• les ouvrants cachés extérieurs (figure 1B).

We can distinguish two main types of opening, illustrated by the sectional views of Figures 1A and 1B :

• the visible openings at beading ( Figure 1A );
• external hidden openings ( Figure 1B ).

As we see on the Figure 1A , the opening 11 extends, outwardly facing side, above the frame 12, and is therefore visible from the outside. An inner glazing bead 13 is attached inside the opening to cover the edge of the glazing 14.

In the case of a hidden opening, as shown on the Figure 1B , the opening 15 extends only on the inside, and carries a rabbet 16 receiving the glazing 17. A glazing bead 18 extends on the edge of the glazing, on the outside, and remains hidden, or essentially hidden by the frame 19 In other words, the implementation of hidden openings makes it possible to make invisible, or almost invisible, the opening frame, seen from the outside, by increasing the sleeping frame. The glazing bored by the outside of the opening is in front of the hardware store.

According to the prior art, this opening frame is made by assembling two uprights and two cross-members in section of tabs and by means of four brackets. The implementation of such brackets is described in particular in the patent document GB477665 , which indicates that the connection of welded ties would be complex, expensive and require a specific finish. Therefore, for at least 80 years, the skilled person is dissuaded to implement a welded joint for industrial applications, and always uses brackets.

• la bicoloration de la menuiserie, c'est-à-dire l'application d'une couleur extérieure différente de la couleur intérieure, est facilitée, du fait qu'il n'est pas nécessaire de gérer la couleur extérieure de l'ouvrant pour la rendre homogène avec celle du dormant ;
• amélioration des performances thermiques, notamment pour les menuiseries en aluminium ;
• augmentation du clair de jour, en optimisant la finesse des profilés du cadre ouvrant ;
• possibilité d'utilisation d'une quincaillerie, plus économique, du type de celle utilisée pour les menuiseries PVC ;
• parclose cachée en position fermée.

This approach makes it possible to obtain hidden openings with certain advantages, compared to opening with visible glazing:

• the bicolor carpentry, that is to say the application of an external color different from the interior color, is facilitated, because it is not necessary to manage the external color of the opening for make it homogeneous with that of the frame;
• improvement of thermal performance, particularly for aluminum joinery;
• increased daylight, by optimizing the fineness of the opening frame profiles;
• possibility of using a hardware, more economical, of the type used for PVC joinery;
• hidden bead in closed position.

Thus, we know that the aluminum windows with hidden openings are more efficient and more economical than the aluminum windows with visible hatching.

An example of carpentry of this type is described in the patent document DE8505873 .

These joineries have disadvantages, however, because of their method of assembly. Indeed, as illustrated on the figure 2 , the manufacture of the frame reveals a cut line 21 between the upright 22 and the crossbar 23. This feature is more or less aesthetic, depending on the care taken in manufacturing (precision of the cut, splinters of paint or chips during cutting, outcropping planes, ....). In addition, this trait 21 tends to amplify over time, following the fatigue of the product, and silicones used to hide imperfections can turn yellow over time. In addition, these cuts are poorly protected against possible corrosion.

The object of the invention is in particular to overcome at least some of these disadvantages.

3. presentation of the invention

This is achieved with the aid of a concealed opening joinery comprising an opening frame equipped with a glazing unit. According to the invention, the amounts and crosspieces of said opening frame are made of steel and assembled only by welding, without additional connecting piece, so as to form a single-piece frame without cutting line, after application of a paint finish, and the outer face of said opening frame ends with a bearing surface, parallel to said glazing, the establishment of said glazing on said bearing surface being performed by said outer face.

Thus, it achieves a hidden opening in a particularly simple and effective manner. This simplicity was however obvious, in view of the more complex known approaches, in which the skilled person considered necessary the implementation of brackets or similar fastening means, and provides an important advantage, removing all the features cutting and their defects.

The mounting of the glazing is also simplified, and the opening obtained can be light, thin and aesthetic. In fact, a direct fastening of the glazing unit to the frame is achieved, without interior parclosing and without the usual rabbet according to the prior art.

The use, unusual in the field of industrial manufacture of joinery, makes it possible to obtain good performances. The rigidity of steel allows for a thinner frame than a classic frame and much less thermal conductor.

Steel is indeed very little used, in carpentry industry, and the skilled person usually prefers aluminum, for issues of weight and ease of industrialization. The approach of the invention, however, provides a weight and thermal efficiency at least similar to current solutions, while obtaining an improved rigidity and / or fineness.

Preferably, the frame of the carpentry is aluminum.

This frame can be manufactured according to known approaches, and has the advantage of being more resistant to corrosion than steel. Thus, it achieves a metal carpentry composed of a concealed steel opening and an aluminum frame. It combines the advantages of both materials at the best cost.

The opening of a steel window with respect to an aluminum window has particular advantages finesse, strength, fire resistance and burglar resistance.

The advantage of the frame of an aluminum window with respect to a frame of a steel window is that it offers more laying solutions adapted to the frame, to be more resistant in terms of corrosion, to make it possible to obtain better thermal performance thanks to the use of thermal break profiles, and to be more economical.

The new combination of a steel opening and an aluminum frame is therefore particularly effective.

According to a particular embodiment, said glazing is sealingly assembled to said opening frame.

According to a particular embodiment, a seal is mounted between said opening frame and said glazing, for example in the form of a double-sided adhesive, between the glazing and the frame.

Load recovery means of said glazing provided by at least one shim taken from said opening frame can be provided.

According to a particular embodiment, said load taking means may comprise, on each of two opposite angles of said opening frame, two wedge support tabs secured to each other so as to extend respectively along two perpendicular edges of said glazing.

This approach, the two legs forming a square, increases the permissible load recovery without increasing its thickness and size.

Advantageously, according to this embodiment, said tabs can be removable.

They can be put in place after glazing.

Advantageously, according to this embodiment, said tabs have at least one assembly portion with said opening frame cooperating with at least one light formed thereon.

According to a particular embodiment, said tabs can be secured to one another by means of a screw.

According to a particular embodiment, said hidden opening door has a cover now in place said glazing.

• obtention de montants et traverses en acier ;
• assemblage desdits montants et traverses en acier uniquement par soudage, sans pièce de liaison supplémentaire, de façon à former un cadre monobloc se terminant, vers l'extérieur, par une surface d'appui plane et parallèle audit vitrage ;
• peinture dudit cadre monobloc, de façon à obtenir un cadre peint sans trait de coupe ;
• la mise en place dudit vitrage sur ladite surface d'appui étant effectuée par ladite face extérieure.

The invention also relates to a method of manufacturing such a concealed opening joinery, comprising the following steps:

• obtaining steel posts and sleepers;
• assembly of said uprights and steel crosspieces solely by welding, without additional connecting piece, so as to form a monobloc frame ending, outwardly, by a flat bearing surface and parallel to said glazing;
• painting said monobloc frame, so as to obtain a painted frame without cutting line;
• placing said glazing on said bearing surface being effected by said outer face.

It is understood that the manufacture of the frame, ready to receive the glazing, and the mounting of the latter are particularly simple.

According to a particular embodiment, the manufacturing method also comprises a step of setting up on said opening frame of at least one load-bearing wedge of said glazing.

The wedge or shims may in particular be placed on wedge supports secured to said frame mechanically and / or by welding.

In particular, said one or more support brackets may comprise two tabs mounted perpendicular to one another and secured to each other by screwing.

According to a particular embodiment, the manufacturing method comprises a step of placing a seal between said opening frame and said glazing.

According to a particular embodiment, the manufacturing method comprises a step of securing to said opening frame of a holding cap of said glazing.

4. list of figures

• les figures 1A et 1B, déjà commentées en préambule, illustrent respectivement, en coupe, une menuiserie à ouvrant visible à parclose (figure 1A) et une menuiserie à ouvrant caché extérieur (figure 1B) ;
• la figure 2, déjà commentée en préambule, illustre schématiquement le trait apparaissant entre un montant et une traverse sur un ouvrant caché de type connu ;
• les figures 3A et 3B illustrent schématiquement un cadre selon l'invention, respectivement vu depuis l'extérieur et depuis l'intérieur d'un bâtiment ;
• les figures 4A et 4B sont deux vues en coupe d'un exemple de menuiserie selon l'invention, respectivement au niveau d'une cale (figure 4B) et dans une zone sans cale (figure 4A) ;
• la figure 5 est un organigramme simplifié d'un procédé de fabrication d'un ouvrant selon l'invention ;
• la figure 6 illustre la position, selon l'approche connue en soi, des cales sur un ouvrant ;
• la figure 7 est une vue en coupe illustrant l'espace disponible pour les supports de cale ;
• la figure 8 est une vue d'un angle d'un cadre équipé de pattes de support de cale selon un mode de réalisation de l'invention ;
• la figure 9 est une vue d'une patte de support de cale de la figure 8 ;
• la figure 10 présente l'angle de la figure 8, avant montage des pattes de support de cale ;
• la figure 11 illustre la solidarisation par vissage des pattes de la figure 8.

Other features and advantages of the invention will appear on reading the following description of a particular embodiment of the invention, given by way of a simple illustrative and nonlimiting example, and the appended drawings, among which:

• the Figures 1A and 1B , already commented on in the preamble, respectively illustrate, in section, a carpentry with visible opening at bead ( Figure 1A ) and a carpentry with external hidden opening ( Figure 1B );
• the figure 2 , already commented on in the preamble, schematically illustrates the line appearing between an amount and a cross on a hidden opening of known type;
• the Figures 3A and 3B illustrate schematically a frame according to the invention, respectively seen from the outside and from the inside of a building;
• the Figures 4A and 4B are two sectional views of an example of joinery according to the invention, respectively at a wedge ( Figure 4B ) and in a non-wedge zone ( Figure 4A );
• the figure 5 is a simplified flowchart of a method of manufacturing an opening according to the invention;
• the figure 6 illustrates the position, according to the approach known per se, of the shims on an opening;
• the figure 7 is a sectional view illustrating the space available for the bilge supports;
• the figure 8 is a view of an angle of a frame equipped with wedge support tabs according to one embodiment of the invention;
• the figure 9 is a view of a wedge hold tab of the figure 8 ;
• the figure 10 presents the angle of the figure 8 , before mounting the bilge support legs;
• the figure 11 illustrates the fastening by screwing the legs of the figure 8 .

5. description of an embodiment

The invention therefore proposes a new approach to concealed door frames, particularly simple and effective.

As illustrated schematically on Figures 3A and 3B schematically illustrate a frame according to the invention, respectively seen from the outside and from the inside of a building, the opening according to the invention has a frame 31, having two uprights 32 and 33 and two crosspieces 34 and 35, assembled by welding. No square or other connecting piece is reported in the corners of the frame.

This frame is preferably made of steel, which allows to obtain a rigid but thin frame, and therefore easy to hide by the frame.

The uprights 32 and 33 and the crosspieces 34 and 35 are obtained directly from raw bars that are assembled in a frame 31, and then painted by example by powder coating. Thus, the frame consists of four single pieces, without connecting element, and has no cutting line at the assembly between the uprights and crosspieces. This improves the aesthetics of the frame, while eliminating the risk of deterioration and poor sealing.

Moreover, always with the aim of simplifying the manufacture, reducing the weight and offering a better aesthetic aspect, the present frame, seen from the outside ( figure 3B ), a vertical planar surface 311 (more precisely, parallel to the glazing it will receive), this glazing being directly or indirectly (via a rabbet) attached to this bearing surface, from the outside. In other words, the opening is made without interior parclosing.

The Figures 4A and 4B are two sectional views of an example of carpentry implementing the framework of the figure 3 .

As can be seen from these Figures 4A and 4B , the frame 31 has, on the side facing outwards, a flat surface 311, parallel to the glazing 42. This glazing 42 is attached to this bearing surface 311, from the outside, then held by a cover 44.

According to the invention, and always for the purpose of simplification of manufacture, there is no provision for rebate for the load recovery of the glazing. This is only ensured by shims 48, placed on steel support 49, secured to frame 31 mechanically and / or by welding ( Figure 4B ). These wedging supports 49 are placed, for a width of the order of 10 cm for example, in a few predetermined locations on the frame 31. The wedges 48, for example made of plastic, are chosen from several spacers available, thicknesses different, to adapt to the characteristics of the frame 31 and / or the glazing 42 and correct the variable games from one joinery to another.

According to an advantageous embodiment, the wedge supports are formed by tabs as illustrated by the figure 7 , assembled two by two at right angles.

The sealing is in particular ensured by a seal 43, adhesive or not, placed between the glazing 42 and the frame 31.

Finally, the cover 44 is attached from the outside, to maintain the glazing 42, as well as the discharge of water. This cover 44 is taken up mechanically on the steel frame 31, for example by hooking. It can carry a seal 45, which cooperates with the frame 46, when the door is closed, to seal.

It can be seen here that the outer portion of the frame 46 completely or almost completely hides the opening, and that there is therefore a concealed opening made of steel which is particularly simple to manufacture, rigid and of little thickness, and having a finish. perfect and durable, without cutting line.

This frame 46 is preferably made of aluminum.

• l'ouvrant d'une fenêtre en acier par rapport à une fenêtre en aluminium a en particulier pour avantages la finesse, la robustesse, la résistance au feu et la résistance à l'effraction ;
• le dormant d'une fenêtre en aluminium par rapport à un dormant d'une fenêtre en acier a en particulier pour avantages d'offrir plus de solutions de pose adaptées au bâti, d'être plus résistant en terme de corrosion, de permettre d'obtenir une meilleure performance thermique, grâce à l'emploi de profilés à rupture de pont thermique, et d'être plus économique.

This approach makes it possible to combine the advantages of both materials at the best cost:

• the opening of a steel window with respect to an aluminum window has, in particular, the advantages of fineness, robustness, fire resistance and resistance to burglary;
• the frame of an aluminum window with respect to a frame of a steel window has in particular the advantages of offering more laying solutions adapted to the frame, to be more resistant in terms of corrosion, to allow to obtain a better thermal performance, thanks to the use of thermal break profiles, and to be more economical.

The figure 5 illustrates a simplified flowchart of a method of manufacturing such a concealed opening joinery.

From raw steel bars, (51) are obtained steel posts and sleepers, cut to the desired dimensions.

These uprights and crosspieces are assembled by welding, without any additional connecting piece, such as brackets, so as to form a monobloc frame 31.

Then, this frame receives a surface treatment, in particular paint 53, which allows to obtain a frame without cutting line.

Then, one or more shims 48 may be attached to the wedging supports, or wedge supports, 49 provided on the bearing surface 311 of the frame (step 54). These wedging supports are secured to the frame for example mechanically and / or by welding.

A particular approach for producing and mounting wedge supports is described below, in connection with the Figures 6 to 11 .

A seal 43 is also placed (step 55) on the bearing surface, for example a double-sided adhesive, and then, from the outside, the glazing 42 is brought into contact with the bearing surface 311 (FIG. step 56).

Finally, there is reported a hood 44 (step 57), always from the outside. This cover is hooked on the steel frame 31, via attachment means provided for this purpose.

A particular and effective embodiment of wedge carriers is now described.

In order to ensure the load recovery of the glazing and to prevent the opening from sagging, it is known that it is necessary to make a wedging 61 and 62 of two opposite angles of the frame 31, as shown in FIG. figure 6 : the necessary shims are placed manually on wedges provided for this purpose. Several thicknesses of shim, for example between 1 and 5 mm, are available, which the editor selects according to the spaces observed.

In the embodiment described above, and as illustrated on the figure 7 , the clearance available between the glazing 71 and the opening nose 72 is very small, for example 3.9 mm. To provide efficient load recovery despite this low clearance, the invention proposes, according to a particular embodiment, a removable load recovery system, which can be put in place after the glazing is installed and sufficiently rigid to take up the necessary load. glazing.

This approach is based on two metal tabs 81 and 82, as illustrated on the figure 8 , placed on the opening frame 31 and secured to each other, for example by means of a screw 83. The particular construction of this wedge-shaped wedge support makes it possible to increase the permissible load recovery without increasing its thickness and its size.

According to the illustrated embodiment, the two tabs are identical. As illustrated on the figure 9 each leg has a lateral tab 91, allowing its placement on the opening frame.

This one has been previously machined, to cooperate with the paw. As illustrated on the figure 10 it has lights 101 and 102, for example 2 mm x 60 mm, each capable of receiving a tongue 91.

Each tab comprises, at one end, two fingers 93 and 94, fitting into the slots 95 and 96 at the second end of another tab, to assemble the two tabs perpendicularly to one another, forming a bracket ( figure 8 ).

The second end also has a central lumen 97, into which the screw 83 is placed, as is further illustrated in the sectional view of FIG. figure 11 (on which we also see the small space available for these supports of wedge), once the bead and the joints mounted).

The screw 83 joins two lumens 98 and 99 of the first end of the other leg, to ensure an effective final assembly, a shim, of the required thickness, having been previously placed on the surface of the corresponding shim, in case of need.

Claims (15)

Joinery with concealed opening comprising an opening frame equipped with a glazing unit, characterized in that the amounts and crosspieces of said opening frame are made of steel and assembled solely by welding, without any additional connecting piece, so as to form a single-piece frame without cutting, after application of a paint finish, and in that the outer face of said opening frame ends with a bearing surface, parallel to said glazing, the establishment of said glazing on said bearing surface being carried out by said outside face. Joinery with concealed opening according to claim 1, characterized in that it comprises an aluminum frame. Joinery concealed opening according to any one of claims 1 and 2, characterized in that said glazing is sealingly assembled to said opening frame. Joinery with concealed opening according to claim 3, characterized in that a seal is mounted between said opening frame and said glazing Joinery concealed opening according to any one of claims 3 and 4, characterized in that it comprises load recovery means of said glazing, provided by at least one shim taken on said opening frame. Joinery concealed opening according to claim 5, characterized in that said load recovery means comprise, on each of two opposite angles of said opening frame, two wedge support legs secured to one another so as to extend respectively along two perpendicular edges of said glazing. Joinery concealed opening according to claim 6, characterized in that said tabs are removable. Joinery concealed opening according to any one of claims 6 and 7, characterized in that said tabs have at least one assembly portion with said opening frame, cooperating with at least one light formed thereon. Joinery concealed opening according to any one of claims 6 to 8, characterized in that said tabs are secured to one another with a screw. Joinery concealed opening according to any one of claims 3 to 9, characterized in that said concealed opening door a hood now in place said glazing. A method of manufacturing a concealed opening joinery, comprising an opening frame equipped with a glazing unit, characterized in that it comprises the following steps: - obtaining steel studs and crosspieces; - Assembling said uprights and steel crosspieces only by welding, without additional connecting piece, so as to form a monobloc frame ending, outwardly, by a flat bearing surface and parallel to said glazing; - painting said monobloc frame, so as to obtain a painted frame without cutting line; - Establishment of said glazing on said bearing surface by said outer face. A method of manufacturing a cabinet with concealed opening according to claim 11, characterized in that it comprises a step of placing on said opening frame of at least one load-bearing wedge of said glazing. A method of manufacturing a concealed opening joinery according to claim 12, characterized in that said wedge or wedges are mounted on wedge supports comprising two legs mounted perpendicular to one another and secured to each other by screwing. A method of manufacturing a cabinet with concealed opening according to any one of claims 11 to 13, characterized in that it comprises a step of placing a seal between said opening frame and said glazing. A method of manufacturing a cabinet with concealed opening according to any one of claims 11 to 14, characterized in that it comprises a step of securing said opening frame of a holding cover of said glazing.

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