EP0000795A1 - Internally reinforced frame of synthetic material for windows and doors. - Google Patents

Abstract

The internally-reinforced plastic frame is for doors and windows, and comprises two separate halves. These are virtually symmetrical and of the same volume, and their mitred portions are welded in a mirror image pattern before an internal peripheral angular frame is fitted between the halves. This frame can extend into the mitred portions, and it can be in one or more pieces, and of metal or wood. One or both the frame halves can have a stop section, and they can be profiled to allow insertion of a sealing strip to secure the glass in place. They can be held together by screws passing through them to screw into the reinforcing core.

Description

The present invention relates to a new type of window or door with a plastic frame, characterized in that said frame consists mainly of two elements, largely symmetrical and of substantially equal volume, provided with internal and external profiling , which are welded to the mirror in the tabs before assembly of the window or the door and which make it possible to include a continuous interior reinforcement made up of a core in the form of a frame or a metallic or wooden square, so such that said frame is provided over its entire circumference, therefore also in the tabs, of said interior reinforcement.

The advantages which result from the use of synthetic material for the manufacture of windows or doors have been known and accepted for a long time in the construction industry. The use of plastics for such applications, however, also has many disadvantages, especially with regard to the rigidity of the construction. Up to now, such windows or doors have in fact always been made of hollow profiles of synthetic material, in which one slides as a reinforcement of the straight cores of metal or wood, before welding the tabs to the mirror. In order to still allow the mirror welding of the tabs, we were however forced to use separate straight cores which, for understandable reasons, should be considerably shorter than the corresponding hollow profiled elements which must subsequently, after introduction of said cores, be welded to the mirror. It inevitably followed that there was no possibility of obtaining any reinforcement in the interior part of the tabs, so that said windows or doors could not meet the quality requirements laid down. Under the effect of their own weight and that of glass and / or under the influence of temperature variations, such windows or doors therefore presented, under given circumstances, the disadvantage of sagging and not remaining square permanently, with all the drawbacks that ensue.

Since the central reinforcement cores had to be slid into the hollow profiles before these were welded to the mirror in the tabs, it was no longer possible to remove said cores without having to saw off the welds. Indeed, after the mirror welding, they had become inaccessible.

Owing to the fact that the internal peripheral profile of frames of this kind fully corresponded to that of conventional metal or wooden frames, glass or panels always had to be fixed by conventional means, such as slats, hooks or the like. , so that inevitably joints were formed which, both from an aesthetic point of view and from that of the maintenance technique, should be avoided.

It is obvious that panes or panels fixed in this way in a frame can very easily be removed again without damaging the frame, which is not always appreciated by users, however, due to safety considerations. It was also impossible to carry out such framing in syn different color schemes inside and out, and the application of trimmings was frequently problematic.

The object of the invention is to remedy the above-mentioned drawbacks, which are inherent in conventional window and door frames made of synthetic material, by presenting a new type of frame, consisting mainly of two frame elements, with internal and external profiling, largely symmetrical and of comparable volume, the individual tabs of which can be welded in advance to the mirror, before the application between the above-mentioned framing halves of a reinforcement in the form of a frame or square. In this way, it therefore becomes possible to apply a reinforcement not only in the straight parts of the frame, but also in the tabs, which could not be done until now. In the frame according to the invention, the tabs are therefore reinforced by square-shaped cores, the corner points of which coincide internally to perfection with the angles of the tabs of the synthetic frame which surrounds them.

Frames made of synthetic material for windows or doors according to the invention offer, compared to the designs known to date, many advantages. Because the frame is internally reinforced over its entire circumference by a metal or wooden core in the form of a frame or square in one or more pieces, it always remains perfectly square and does not s '' does not collapse under its own weight or that of the glass, nor under the effect of temperature variations. Since the two symmetrical halves of the frame, between which the glass or the panel is clamped, are individually welded to the mirror, the tabs have no annoying joints, so that such windows or doors have the appearance of elements cast from one piece. In addition, the reinforces rigid internal frame or square shape provides a solid base for fixing said frame halves as well as for the fixed application of fittings. Because the frame itself is made up of two separate halves, it offers the desired possibility of making the interior and exterior faces in different colors. It will thus be possible, for example, to execute the interior in brown and the exterior in white, or vice versa.

The aforementioned half-sections are provided s r their perimeter such that profiled panes or parneaux of various thicknesses can easily be mounted; in this type of coaching.

Because the frame halves are assembled in the direction parallel to the plane of the window by means of lateral screws on the inner core in the form of a frame or square, it will be impossible to remove the glass when the window or the door is in closed position.

• la figure 1 représente une vue frontale d'une fenêtre conforme à l'invention;
• la figure 2 représente à plus grande échelle une coupe longitudinale partielle de l'onglet F₂ à la figure 1;
• la figure 3 représente une corpe transversale suivant la ligne III-III à la figure 2;
• la figure 4 est une vue éclatée de la figure 3;
• la figure 5 est une variant de la figure 3, où un vitrage isolant double se tiouve placé.

In order to better understand the invention, it will be described in more detail below with reference to the accompanying drawings of a window, in which:

• Figure 1 shows a front view of a window according to the invention;
• Figure 2 shows on a larger scale a partial longitudinal section of the tab F ₂ in Figure 1;
• FIG. 3 represents a transverse body along the line III-III in FIG. 2;
• Figure 4 is an exploded view of Figure 3;
• Figure 5 is a variant of Figure 3, where a double insulating glass is placed.

Figure 1 shows in the completed state a synthetic frame 1 according to the invention, in which finds a tile 2. Preferably, we will use polyvinyl chloride (PVC) as synthetic material for the manufacture of the frame 1. As already said before, the frame 1 consists of two symmetrical halves of volume approximately equal, it being understood that when it is a window or a door, one of the two halves presents a beat that the other half does not have. In order to prevent any confusion of terminology, this first half will be called "main profile" in the following, while the other half will be called "glazed batten".

In FIG. 2, 3 represents the main or basic profile, while 4 refers to the glazed batten or to the retaining frame of the pane 2. With regard to the external shape of the glazed batten 4, we can say that it is largely symmetrical with respect to the main profile 3, with the exception of course of the beating element 5 of the latter. The cutout in the tab 6 of the frame 1 in this same figure shows the inner part of the glazed batten 4 in which rests a square part 7 of the inner reinforcement core of metal or wood to which the glazed batten 4 is fixed with screws 8. Both the base profile 3 and the glazing strip 4 have a profile 10 on their inner peripheral side 9 so that a rubber sealing tongue 11 can be there. slipped, in order to ensure, during the installation of the tile 2, a tight seal with the latter.

In what follows, a description will be given of a window in accordance with the invention, from the manufacture of the individual elements of the plastic frame 1 to the finished product shown in FIGS. 1, 2 and 3. Both the base profile 3 and the glazing strip 4 are extruded in a well known manner, their outer surface being calibrated. For both we cut sections of appropriate length, after which we introduce into the profiled grooves 10 sealing tongues 11 of about the same length. Said parts are then welded to each other in the tabs by the known technique of mirror welding, so that two separate plastic frames 3 and 4 are obtained with a relatively large central circumferential recess 12 in the sides of the frames that face each other. We start by screwing laterally the base profile 3 on the central reinforcement frame 7, preferably made of metal or wood, using the screws 8 '. The tile 2 is then placed in the frame thus formed, the tile coming to rest on the sealing tongue 11. The retaining frame for the tile 2 or glazing strip 4 is then slid over the frame. reinforcement 7, well so that the rubber sealing strips 11 of said glazing slat 4 are applied firmly against the pane 2. In turn, the glazing slat 4 will then be fixed on the reinforcing frame 7 using screws 8.

The pane 2 is then surrounded by an internally reinforced synthetic frame which gives the impression of being poured in one piece due to the absence of seals in the tabs at the place where the holding elements of the ice meet. For the possible replacement of the pane 2, the window must be in the open position, so that the screws 8a can be loosened in order to remove the glazing slat 4 and the pane 2. If, in addition, the screws 8 are still unscrewed ', it is also possible to remove the internal reinforcement 7.

I1 clearly appears in Figure 3, it is possible to reach the aforementioned screws when the window finds it in the closed position, because the frame 13 prevents it.

If desired, the basic profile and the glazing slat can be produced in different colors. It is thus if the outer side of the frame, or in other words the window slat, can be executed in white and the inner side of the frame, or in other words the basic profile, in brown, or Conversely.

The inner walls 9 of the base profile 3 and the glazing strip 4 are further profiled in such a way that, when for some reason it is necessary to mount a glass of greater thickness, such as , for example, a double insulating glazing, this can be done without drawback by sawing the first profile 10 from one or both of the half-profiles and by applying the rubber sealing tongue 11 in the second profile 10 'thus become free, so that a tight tightening is again ensured for the glass 14 of greater thickness.

In FIGS. 3, 4 and 5, it is clear that the only difference between the base profile 3 and the glazing strip 4 consists in the presence of a pan 5 in the base profile 3. This pan is indeed necessary to ensure proper closing of the window as a result of the cooperation of the opening 5 with the side wall 15 of the frame 13.

It goes without saying that frames in accordance with the invention can also be used for the manufacture of single or multiple false windows. In this case, the two frame halves will preferably be symmetrical or identical and will have a shape mainly similar to that of the basic profile 3 above.

The use of rigid square-shaped cores in the two-piece plastic frame at the same time ensures a sufficiently solid base for the very firm application of fittings, which are not shown in the figures.

It is obvious that multiple modifications can be applied to the frame in accordance with the invention, without departing from the scope of the invention which is described above and without being limited to the embodiment discussed in detail below. above as an example.

Claims (10)

1.- Framing in synthetic material with internal reinforcement for windows and doors, characterized in that said framing (1) is composed of two separate halves (3, 4) which are substantially symmetrical and have approximately the same volume and the tabs (6) are welded to the mirror before the application of a circumferential internal reinforcement frame (7) in the form of a square between the aforementioned frame halves (3, 4). 2.- Inner reinforcement frame for windows and doors according to claim 1, characterized in that the aforementioned reinforcement frame (7) extends in the form of a square up to the tabs (6) of said frame (1). 3.- Inner reinforcement frame for windows and doors according to claim 2, characterized in that the aforementioned frame (7) is in one or more parts made of metal or wood. 4. A frame with internal reinforcement for windows and doors according to claim 1, characterized in that at least one of the two aforementioned two frame halves (3, 4) has a beaten part (5). 5.- Inner reinforcement frame for windows and doors according to claim 1, characterized in that said frame halves (3, 4) are profiled, at least on the inside face of their circumference (9), so to be able to slide into said profile a sealing tongue (11) in order to ensure firm tightening of the window (2). 6.- Framing with internal reinforcement for windows and doors according to claim 1, characterized in that the above-mentioned framing halves (3, 4) are provided with less on the inner face of their circumference (9) of a profile which is such that, by cutting a first profile (10) from one or both of the above-mentioned framing halves (3, 4), there is the possibility of mounting windows or panels (14) of different thickness, using the new profile, or new profiles (10 ') which have become accessible by this operation. 7.- Inner reinforcement frame for windows and doors according to claim 1, characterized in that the aforementioned frame halves (3, 4) are held together by means of a series of screws (8, 8 ') introduced laterally through the narrow sides of the aforementioned frame halves (3, 4) and screwed into the reinforcing core (7). 8.- Inner reinforcement frame for windows and doors according to claim 1, characterized in that the aforementioned frame halves (3, 4) can be executed in respectively different colors. 9.- Inner reinforcement frame for windows and doors according to claim 1, characterized in that the aforementioned frame halves (3, 4) are completely identical. 10.- Inner reinforcement frame for windows and doors according to claim 1, characterized in that the aforementioned frame halves (3, 4) are perfectly symmetrical.

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