EP3406838A1 - Profile member of a window opening, frame including such a profile member and associated assembly method - Google Patents

Abstract

The invention relates to a hollow section (100) for the construction of a sash frame (200), in particular a sliding frame, with a glazed opening. In addition, said hollow section is made of polyamide material loaded with glass fibers, and comprises:
two cells respectively said central (110) and connecting (120), each of said cells having a first wall (111, 121) intended to extend in a mean plane normal to the glazed opening, a second wall (112, 122) opposite said first wall (111, 121), as well as sidewalls (113, 114, 123, 124) connecting said first (111, 121) and second (112, 122) walls,
lateral cells (130, 140, 150, 160) arranged on either side of said central (110) and connecting (120) cells,
fastening means (190) for maintaining in a stable and reversible position a baffle section (230) of the sash frame (200),
- Assembly means for maintaining in a stable position and reversibly protection profiles (281, 282) of the sash frame (200).

Description

TECHNICAL AREA

The present invention belongs to the field of glazed openings made in the facade of a building, and relates more particularly to a polyamide opening profile, a glazed opening frame comprising such an opening profile and a mounting method of this chassis. The present invention finds a particularly advantageous application, although in no way limiting, in an opening closed by a multiple glazing, for example a double glazing, this opening being able to be fixed or opening, on a hollow, sliding or striking frame.

STATE OF THE ART

Currently, there are different types of opening profiles whose technical design is intended to be precise and dimensionally stable under nominal conditions of use. This is to ensure the maintenance of a glazing, and consecutively, a good use of a window or French window comprising such glazing. In addition to the function of supporting and maintaining the glazing, such profiles are designed so as to form a frame by extrusion and thus allow, in cooperation with the glazing, to create an airtight barrier to water and the wind.

In general, such sash profiles differ from each other essentially in terms of the materials used in their design as well as in the particular geometry they adopt. The choice of materials as well as shape are guided, certainly by considerations of mechanical strength, size, design and adaptation to the structural and dimensional characteristics of the opening, but also especially by considerations relating to thermal performance sought . These performances relate in a known manner to the measurement and the evaluation of a coefficient U _f said of thermal transmission, whose unity is expressed in Wm ^-2 .K ^-1 .

Thus, profiles of essentially metallic constitution, for example made of aluminum, are known. These materials have the advantage of having good mechanical strength and require little treatment to be maintained in good condition. Nevertheless, their thermal conductivity represents a significant limiting factor in terms of performance thermal, especially when the profile is of monolithic constitution (U _f coefficient greater than 5 Wm ^-2 .K ^-1 ). A solution envisaged then consists in the establishment of a thermal break in the separation of the opening profile in a frame profile and a bead section, so as to limit the exchange by conduction. The space between the frame profile and the bead section is thus compartmentalized by means of plastic strips, for example PVC (acronym for the English expression "PolyVinyl Chloride") or fiberglass-polyamide composite. The compartments thus formed (also called cells or isolation chambers) comprise almost stationary air which limits any thermal losses by convection.

PVC opening profiles are also known, according to monolithic or composite geometries as described above. The use of PVC improves the thermal performance of the sash profile, but nevertheless has the disadvantage of a lower mechanical strength than metal materials. For this purpose, the structure of a PVC sash profile is conventionally stiffened by adding metal reinforcements, for example galvanized steel, inside cells of said profile. In addition, aluminum profiles can be crimped on each side of the sash profile (relative to the inside and outside of the glazed opening), so to further improve the thermal performance a little more.

It has also been proposed profiles made of polypropylene. These allow to improve slightly the thermal performance obtained with PVC. In addition, when loaded with fiberglass, their rigidity is also increased so that the use of metal reinforcements to stiffen the structure is not required.

Nevertheless, the aluminum or PVC opening profiles still have limited thermal performance, typically greater than 2 Wm ^-2 .K ^-1, which consequently impacts the overall thermal performance of the window or door. -Window equipped with this profile. Furthermore, in case of high temperatures, large temperature differences can be observed between the inner and outer sides of such opening profiles. As a result, because of the materials used, in particular aluminum, a phenomenon called "bimetallic effect" in which the outer sides dilate. This results in a point deformation of the opening profiles, also called "bending", which makes it difficult to close and open the window, especially in the case of a sliding window. In addition, it should be noted that the design of these profiles remain relatively complicated because of their composite structures combining different materials.

Polypropylene profiles also have several disadvantages, other than not achieving optimal thermal performance. First, it should be noted that such profiles are difficult to assemble by welding, or by gluing. The manufacture of continuous frames made of crosspieces and uprights from polypropylene profiles is therefore complicated. Moreover, polypropylene is known to exhibit volume instabilities during extrusion processes, in particular because of a low coefficient of friction, so that the person skilled in the art turns away from it with regard to mass production. profiles for window frames.

STATEMENT OF THE INVENTION

The present invention aims to overcome all or part of the disadvantages of the prior art, including those described above, by proposing a solution that allows to have opening profiles having good thermal performance and mechanical strength , all budget controlled. Such a solution also makes it possible to envisage large-scale production in series by extrusion process, and easier assembly of the profiles between them, for example to form frames. In addition, the present invention aims at providing a solution for having sash frames comprising such sash profiles and having a structure adapted to avoid the bimetallic effect.

• deux alvéoles respectivement dites centrale et de liaison, chacune desdites alvéoles comportant une première paroi destinée à s'étendre dans un plan moyen normal à l'ouverture vitrée, une deuxième paroi opposée à ladite première paroi, ainsi que des parois latérales reliant lesdites première et deuxième parois,
• des alvéoles latérales agencées de part et d'autre desdites alvéoles centrale et de liaison,
• des moyens de fixation destinés à maintenir en position stable et de façon réversible un profilé de parclose du châssis d'ouvrant,
• des moyens d'assemblage destinés à maintenir en position stable et de façon réversible des profilés de protection du châssis d'ouvrant,

et est constitué en matériau polyamide chargé de fibres de verre.For this purpose, and according to a first aspect, the invention relates to a hollow profile for the construction of a sash frame, in particular a sliding frame, of a glazed opening, said sash frame being intended to cooperate with a sleeping frame the glazed opening. In addition, said hollow section comprises:

• two respectively said central and connecting cells, each of said cells having a first wall intended to extend in a normal plane normal to the glazed opening, a second wall opposite said first wall, as well as side walls connecting said first and second wall,
• lateral cells arranged on either side of said central and connecting cells,
• fastening means for maintaining in stable position and reversibly a bending section of the sash frame,
• assembly means for maintaining in a stable position and reversibly protection profiles of the sash frame,

and is made of polyamide material loaded with glass fibers.

In particular embodiments of the invention, the hollow profile may further comprise one or more of the following characteristics, taken separately or in any technically possible combination.

In a particular mode of implementation, each side wall of the central and connecting cells is merged with a wall of at least one of said lateral cells, the section also comprising a lateral cell, said auxiliary cell, configured to present walls all distinct from said side walls, one of the walls of the auxiliary cavity forming, in association with the first wall of the central cavity, a rebate profile for holding the glazing.

In a particular embodiment, said fixing means comprise a fixing groove, opposite to said auxiliary cavity relative to the central cavity, and formed by a projection of the first wall of the central cavity in the extension of the profile of rabbet as well as a wall of a side cell, said support wall, which extends said first wall on the opposite side to said auxiliary cell.

In a particular embodiment, the assembly means comprise assembly grooves formed in walls of the lateral cells and / or spacings between walls of the lateral cells and / or shoulders of the walls of the lateral cells.

In a particular embodiment, the second wall of the connecting cell has an opening intended to cooperate with the fixed frame of the glazed opening, the first wall of the connecting cell having a fastening groove, substantially arranged facing said opening, and intended for mounting hardware elements of the sash frame.

In a particular embodiment, the second wall of the central cavity is merged with the first wall of the connecting cell.

In a particular embodiment, the polyamide material is of the 6/6 type and the weight of the glass fibers is between 20% and 30% of the total weight of the hollow section.

According to a second aspect, the invention relates to an opening frame for a glazing, in particular a double glazing, a glazed opening. In addition, said sash frame comprises a hollow profile according to any one of the embodiments of the invention.

In particular embodiments of the invention, the sash frame may further comprise one or more of the following features, taken separately or in any technically possible combination.

• un profilé de parclose coopérant avec les moyens de fixation,
• des cales de maintien régulièrement réparties en appui sur le profilé de feuillure au niveau de la première paroi de l'alvéole centrale, et destinées au maintien précontraint du profilé de parclose contre ledit vitrage,
• des cales de support de vitrage en appui sur les cales de maintien et destinées au maintien du positionnement du vitrage dans le profilé de feuillure,
• des moyens d'étanchéité destinés à assurer l'étanchéité entre le vitrage et le profilé de parclose, entre le vitrage et l'alvéole auxiliaire ainsi qu'entre l'ouverture de l'alvéole de liaison et le châssis dormant de l'ouverture vitrée,
• des moyens adhésifs agencés en appui sur le profilé de feuillure et destinés à assurer la tenue mécanique de l'ensemble formé par ledit profilé creux et le vitrage.

In a particular embodiment, the sash frame further comprises:

• a bead section cooperating with the fixing means,
• holding wedges regularly distributed in support on the rebate profile at the first wall of the central cavity, and for prestressed maintenance of the bead section against said glazing,
• glazing support shims resting on the holding wedges and intended to maintain the positioning of the glazing in the rebate profile,
• sealing means for sealing between the glazing and the glazing section, between the glazing and the auxiliary cavity and between the opening of the connecting cavity and the fixed frame of the glazed opening ,
• adhesive means arranged in abutment on the rebate profile and intended to ensure the mechanical strength of the assembly formed by said hollow section and the glazing.

In a particular embodiment, the sash frame comprises protection profiles cooperating reversibly with the assembly means.

• un profilé creux selon l'un quelconques des modes de réalisation de l'invention,
• un profilé de parclose,
• des cales de maintien,
• des cales de support de vitrage,
• des moyens d'étanchéité,
• des moyens adhésifs.

According to a third aspect, the invention relates to a preconstituted assembly, or kit, for the constitution of an opening frame according to any one of the embodiments of the invention. In addition, said kit comprises:

• a hollow profile according to any one of the embodiments of the invention,
• a bead section,
• hold wedges,
• glazing support shims,
• sealing means,
• adhesive means.

In a particular embodiment, the kit comprises protection profiles.

• introduire le vitrage dans le profilé de feuillure,
• fixer le profilé de parclose en position stable sur le profilé creux par coopération avec les moyens de fixation.

According to a fourth aspect, the invention relates to a method for producing a sash frame glazing, by means of a kit according to any one of the embodiments of the invention, the holding wedges and glazing support and the sealing means having been previously fixed on the hollow profile and the bead section. In addition, said method comprises the steps of:

• introduce the glazing into the rabbet profile,
• fixing the bead section in a stable position on the hollow section by cooperation with the fixing means.

In a particular mode of implementation, said method comprises, when the kit comprises protection profiles, a step of assembling said protection profiles on the sash frame by cooperation with the assembly means.

PRESENTATION OF FIGURES

• Figure 1 : une représentation schématique, selon une vue en section transversale, d'un exemple de réalisation d'un profilé creux pour la construction d'un châssis d'ouvrant.
• Figure 2 : une représentation schématique, selon une vue en section transversale, d'un exemple de réalisation d'un châssis d'ouvrant comportant un profilé creux selon l'invention.
• Figure 3 : une représentation schématique, selon une vue de trois quart, d'un exemple de réalisation du châssis d'ouvrant de la figure 2.

The invention will be better understood on reading the following description, given by way of non-limiting example, and made with reference to the following Figures 1 to 3 that represent :

• Figure 1 : a schematic representation, in a cross-sectional view, of an embodiment of a hollow section for the construction of an opening frame.
• Figure 2 : a schematic representation, in a cross-sectional view, of an embodiment of an opening frame comprising a hollow section according to the invention.
• Figure 3 : a schematic representation, in a three-quarter view, of an embodiment of the sash frame of the figure 2 .

In these figures, identical references from one figure to another designate identical or similar elements. For the sake of clarity, the elements shown are not to scale unless otherwise stated.

DETAILED DESCRIPTION OF EMBODIMENTS

The present invention finds its place in the field of the design of profiles suitable for the construction of opening frames, as well as opening frames comprising such profiles.

The figure 1 schematically represents an embodiment of a hollow profile 100 for the construction of a sash frame, and corresponds to a sectional view of said hollow section 100 according to a cross section.

A hollow profile 100 according to the invention, and consequently the sash frame associated therewith, is intended to support a glazing unit in an average plane, also called "plane of the glazing". The glazing is intended in particular to fill an opening in the facade of a building, and thus forms a separation between an interior environment 10, for example a living place in the building, and an external environment 20. Nothing excludes however, according to other examples not detailed here, to have a glazing localized differently, for example even within a living space, so as to create partitioned spaces nevertheless allowing the light to pass.

The assembly formed by the sash frame equipped with the hollow profile 100 and the glazing constitutes the opening of a window (or else of a French window), the sash frame being intended to cooperate, of known way, with a frame of the same window. The remainder of the description aims more specifically, but in a nonlimiting manner, a sliding sash frame of a window, the sliding movement operating in the plane of the glazing which is vertical in the present embodiment, c ' that is to say perpendicular to the floor surface on which the sash frame is intended to rest. Nothing, however, excludes having, according to other examples not detailed here, a sash frame of another type, for example to hit.

By "cross section" means here a section in a plane perpendicular to the plane of the glazing. Conventionally, the sash frame comprises vertical uprights and horizontal crosspieces so as to form a frame on the entire periphery of the window. It is therefore understood that a plane perpendicular to the plane of the glazing may also be parallel to the surface of the ground (in which case the figure 1 refers to a section made in a vertical upright of the frame of the opening) or even perpendicular to both the surface of the ground and the glazing (in which case the figure 1 refers to a section made in a horizontal cross member of the sash frame).

For the rest of the description, an axis X is defined relative to the hollow section 100 (and thus, in fine, also relating to the sash frame) according to the invention. Said axis X has a direction normal to the plane of the glazing, and is further oriented from the outside environment 20 to the interior environment 10. It also defines a Z axis contained in the plane of the glazing and oriented the dormant frame to the opening frame of the window. The reference XZ formed by the X and Z axes is represented, as a non-limiting example, on the Figures 1 to 3 .

It should also be noted that the hollow profile 100 is illustrated in FIG. figure 1 so as to extend along the normal to the XZ plane, over a predetermined length. It will be clear to those skilled in the art that the dimension of this length is in no way limiting, it being understood that said hollow section 100 is conventionally manufactured by extrusion according to the normal to the XZ plane, so that it can be cut to the desired length.

The notions of left, right, up, down, up, down, etc. relative to the hollow section 100 as well as to the sash frame are defined relative to the XZ mark. Thus, on the figures 1 and 2 the environment positioned to the left of the hollow profile 100 (respectively of the sash frame) corresponds to the external environment 20, whereas the environment positioned to the right of the hollow section 100 (respectively of the sash frame) corresponds to the 10. In addition, X-axis displacement is termed "lateral" in both right-to-left and left-to-right directions.

The hollow profile 100 is made of polyamide material loaded with glass fibers. It is noted that the reinforcement itself of a polyamide material by means of glass fibers is known to those skilled in the art, this reinforcement conferring in particular good mechanical properties and dimensional stability for complex geometries. Furthermore, the use of a polyamide material is advantageous because it makes it possible to obtain a hollow profile 100 having good thermal performance, which contributes to limiting thermal losses between the inside and the outside. In addition, the use of the polyamide makes it possible to facilitate the production by extrusion of hollow sections 100 according to the invention, so as to optimize the series production of frames comprising such hollow sections 100.

The choice of a polyamide material is also advantageous because it contributes to the ease of assembly of the sash frame over the entire periphery of the window, especially at junction areas between the vertical uprights and the horizontal crosspieces of said frame opening of. Indeed, the hollow profile 100 team both vertical uprights horizontal crosses. In this way, the vertical uprights and the horizontal crosspieces have continuity of shape at said junction areas, this continuity of shape contributing advantageously to the simplicity of the final assembly of the sash frame. For example, the assembly is performed by welding, for example by ultrasonic welding (thus at high frequencies). It should be noted that this is a benefit of polyamide compared with other plastics such as polypropylene, for example, which is not suitable for welding assembly. In another example, the assembly of the uprights and sleepers is effected by means of brackets reported and glued by pins. Again, the use of polyamide is advantageous because it facilitates the bonding.

Moreover, the use of polyamide makes it possible to obtain a hollow profile 100 having excellent thermal performance, whatever the nature of the polyamide used. Preferably, the polyamide material is of the 6/6 type and the weight of the glass fibers is between 20% and 30% of the total weight of the hollow section 100. Such a composition makes it possible to have an excellent compromise between thermal performance, mechanical strength and cost of manufacture. In this case, the coefficient U _f of thermal transmission is substantially equal to 1.3 Wm ^-2 .K ^-1 . However, according to other examples not detailed here, nothing excludes having other types of polyamide materials, if, for example, it is desired to improve the thermal performance independently of the manufacturing cost, or, conversely, if the cost of manufacture is to be optimized in priority.

Preferably, the weight of the glass fibers represents 25% of the total weight of the hollow section 100. The inventors have indeed found that the compromise between thermal performance, mechanical strength and manufacturing cost was optimal for this value. Nothing, however, excludes having other values of the weight of the glass fibers with regard to the total weight of the hollow profile 100, possibly outside the range [20%, 30%] if for example the criterion to be optimized in first place is the mechanical strength of the sash frame 100.

The hollow profile 100 comprises two so-called central 110 and connecting cell 120, each of said cells having a first wall 111, 121 intended to extend in a normal plane normal to the glazed opening, a second wall 112, 122 opposite to said first wall 111, 121, as well as side walls 113, 114, 123, 124 connecting said first 111, 121 and second 112, 122 walls.

In a particular embodiment, illustrated by the figure 1 in no way limiting, the central cell 110 is positioned above the connecting cell 120 and is shaped so as to have internal faces delimiting a closed internal surface. In addition, the left side walls 113, 123 (respectively to the right 114, 124) of said central cells 110 and connecting 120 are substantially contained in the same plane having the normal axis X, this plane being substantially perpendicular to the mean plane defined by the first wall 111 of the central cell 110.

The connecting cell 120, in addition to contributing to the thermal performance of the entire hollow section 100, is also configured to allow cooperation with the frame of the window. Thus, in a particular embodiment, the second wall 122 of the connection cell 120 has an opening 125 intended to cooperate with the dormant frame of the glazed opening, the first wall 121 of the connecting cell 120 having a groove 126 called "throat attachment", substantially arranged opposite said opening 125, and for mounting hardware elements of the sash frame. These hardware elements comprise, for example, fastening means to horizontal amounts of the dormant frame, for closing, roulette and caster clevises allowing the sliding of the opening on the horizontal crosspieces of the sash frame, etc. These hardware elements and their configuration and arrangement within a sash profile are known to those skilled in the art so that they are not described in more detail above.

As illustrated in figure 1 , the fastening groove 126 intended for holding the hardware elements takes the form of an inverted U, the base of the U being turned towards the top of the hollow profile 100 and substantially centered on the first wall 121 of the connecting cell 120. Nothing, however, excludes, according to other non-detailed examples, having other configurations of shape and positioning for said fastening groove 126 since these configurations allow the implementation of the hardware elements.

As shown in the figure 1 the second 112 and first 121 walls of the respectively 110 central cell and link 120 are combined. Thus, the second wall 112 of the central cavity 110 is shaped so as to have a shape complementary to the U-shaped attachment groove 126 of the first wall 121 of the connection cell 120. Such a configuration makes it possible in particular to gain space, and therefore to have a hollow profile 100 compact form. Nothing, however, excludes, according to other examples not detailed here, to have cells positioned between the central cell 110 and the connecting cell 120 so that they have no wall in common.

It should be noted that the geometrical configuration of the hollow section 100, more particularly the fact that it comprises at least said two central cells 110 and connecting 120 (and possibly other cells positioned between said central cells 110 and connecting 120 ), participates in a common way with the use of polyamide to reinforce the stiffness, and therefore the mechanical strength, of said hollow section 100. This increase in rigidity is further provided, always in concert with the use of polyamide, by the presence lateral cells and a connecting cell as described below.

Furthermore, the hollow profile 100 comprises lateral cavities 130, 140, 150, 160 arranged on either side of the central cells 110 and connecting 120. Such lateral cells 130, 140, 150, 160 make it possible to increase the thermal performance of the hollow section 100 to the extent that they create compartments, in addition to those created by the central cells 110 and link 120, in which the enclosed air is almost stationary which advantageously minimizes energy losses by convection. In addition, such lateral cells 130, 140, 150, 160 serve to support the sash frame in which the hollow section 100 is introduced, as described below.

Each side wall 113, 114, 123, 124 of the central cells 110 and connecting 120 is merged with a wall of at least one of said lateral cells 130, 140, 150, 160. For example, and as illustrated by the figure 1 the left lateral wall 113 (respectively the right lateral wall 114) of the central cell 110 is merged with a wall of a single lateral cell positioned on the left (respectively on the right), said upper left side cell 130 (respectively 150) of said central cavity 110. The hollow profile 100 further comprises two identically configured lateral cavities, said lower lateral cavities respectively left 140 and right 160, with respect to the connecting cell 110. configuration of the upper lateral cells 130, 150 and lower 140, 160 ensures the support of the hollow section 100 in the sash frame while minimizing the amount of polyamide used for the manufacture of said hollow section 100. Nothing, however, excludes, according to other non-detailed examples, that a side wall of the central cell 110 (respectively of the connecting cell 120) is common to more than one wall of a side cell. In addition, in the present exemplary embodiment, the lateral cells 130, 140, 150, 160 are of substantially rectangular shape in the XZ plane, of length along the Z axis. Nevertheless, it is possible to envisage any form of cell lateral according to the geometric constraints imposed by the opening in the facade.

The profile also comprises a side cell, said auxiliary cell 170, configured to have walls all distinct from the side walls of the central cells 110 and connecting 120, one of the walls of the auxiliary cell forming, in association with the first wall 111 of the central recess 110, a rabbet section 180 for holding the glazing.

In a particular embodiment, illustrated in no way limiting by the figure 1 , the auxiliary cavity 170 is arranged on the left of the hollow profile 100, above the left upper lateral cavity 130 and so as to have a lower wall in common with an upper wall of said left upper lateral compartment 130. Said Auxiliary cell 170 protrudes, upward, relative to the mean plane of the first wall 111 of the central cell 121, so that the rebate profile 180, intended to accommodate the glazing, adopts a shape substantially in L. Such a configuration is advantageous because it participates in the glazing holding function on the side of the external environment 20. It will be clear to the skilled person that the arrangement of said auxiliary cell 170 can not be limited to the left side of the profile hollow 100, the right side remaining quite possible thanks to minor adjustments respecting the structural symmetry along the Z axis of the hollow section as shown in FIG. figure 1 .

Furthermore, the hollow profile 100 comprises fastening means for maintaining in a stable position and reversibly a bending section of the sash frame. Such a bead section aims to ensure the maintenance of the glazing in the rebate profile, and is typically positioned on the inside 10.

By "stable position" is meant here that the bead section is intended to remain in place in a position of sustainable equilibrium once it cooperates with said fixing means. In addition, by "reversible", reference is made here to the fact that it is possible to secure and separate the bead section to the hollow section 100 through the fastening means, for example via the intervention of an operator.

For example, and as illustrated in no way limiting in the figure 1 said fixing means comprise an attachment groove 190, opposite said auxiliary cell 170 relative to the central cell 110. This fixing groove 190 is positioned on the inner side (that is to say on the right on the figure 1 ) and extends in a direction substantially identical to that of the X axis, from left to right. Said fixing groove 190 is formed by a projection 191 of the first wall 111 of the central recess 110 in the extension of the rebate profile 180 as well as by a wall of a lateral cavity, said support wall 192, which extends said first wall 111 on the opposite side to said auxiliary cell 170. In the present embodiment, said support wall 192 corresponds to an upper wall of the upper right lateral cell 150.

The fixing groove 190 thus shaped is intended to cooperate with a projection of the bead section, this projection advantageously having a shape substantially complementary to that of the fixing groove 190, so that said bead section is maintained to the hollow profile 100. Nothing, however, excludes, according to other examples not detailed here, that the fixing groove 190 is shaped in another shape and at a different location of the hollow profile 100, as soon as it cooperates with the bead section in the purpose of ensuring the maintenance of the latter.

The hollow profile 100 also comprises assembly means for maintaining in stable position and reversibly protection profiles of the sash frame. The terms "stable position" and "reversible" refer to notions identical to those defined above.

In a particular embodiment, the assembly means comprise assembly grooves 193 formed in walls of the lateral cells. For example, as illustrated in the figure 1 , an upper face of the auxiliary cavity 170 has two assembly grooves 193 intended to cooperate with an upper portion of a protective section assembled on the left side of the hollow section 100.

Alternatively, or additionally, the assembly means may take the form of spacings 194 between walls of the lateral cells. In the figure 1 the lower and upper walls respectively of the upper left lateral cell 130 and the lower left lateral cell 140 are distinct, so that these walls are separated by a spacing 194 elongated in the direction X. This spacing 194 is intended for cooperating with a protrusion of a side wall of the protection profile, said side wall extending in the Z direction along the left side of the hollow profile 100.

In yet another alternative, or additionally, the assembly means may take the form of shoulder 195 of the walls of the lateral cells. For example, as illustrated in the figure 1 , the left lower lateral cavity 140 (respectively right 160) has an assembly shoulder 195 at a lower wall, this assembly shoulder 195 being intended to cooperate with a lower portion of an assembled protection profile of the left side (respectively right) of the hollow profile 100.

According to another aspect, the invention relates to a sash frame 200 for a glazing unit 300 of a glazed opening, said sash frame 200 comprising a hollow profile 100 according to the invention. The hollow profile 100 forms the core of the sash frame 200, that is to say, it constitutes the main part of said sash frame 200 being positioned substantially centrally inside the latter. The hollow profile 100 may be of any size along any one of the X and Z axes, and may further be extruded to any desired length in the direction normal to the XZ plane. In other words, the hollow profile 100 may be designed so as to be adaptable to any type of sash frame, and therefore of window.

In a manner known per se, such an opening frame 200 is intended to cooperate with a dormant frame of the sliding window, this point not being not further detailed because out of the scope of the invention.

The figure 2 schematically represents an embodiment of an opening frame 200 comprising a hollow section 100, and corresponds to a sectional view of said frame 200 in a cross section. The glazing 300 supported by the hollow profile 100 of the sash frame 200 is double glazing 300. Nothing, however, excludes other types of glazing, such as single glazing or triple glazing.

The figure 3 schematically represents an embodiment of the sash frame 200 of the figure 2 , and corresponds to a portion of the sash frame 200 formed by cooperation of a vertical upright 210 with a horizontal cross member 220 in a three-quarter view.

In a preferred embodiment, illustrated in no way limiting by the figure 2 , the sash frame 200 comprises, besides the hollow profile 100, a baffle section 230 cooperating with the fixing means of said hollow section 100. The baffle section 230 is positioned on the inside 10 of the sash frame 200, c 'ie on the right side of the figure 2 and has a lower projection 231 cooperating with the fixing groove 190 of the hollow profile 100 so as to be held in a stable position on said hollow section 100. The bead section 230 is made of plastic material, preferably made of thermoplastic elastomer material (better known under the acronym TPE) composed of an alternation of flexible and rigid segments so as to have two hardnesses respectively contributing to the sealing in contact with the glazing (flexible segments) and to a good rigidity necessary to maintain the glass (rigid segments ).

The sash frame 200 also comprises holding wedges 240 regularly distributed in abutment on the rebate profile 180 at the level of the first wall 111 of the central cell 110, and intended for the prestressed holding of the bead section 230 against said glazing 300. The holding wedges 240 are for example made of plastic or hardwood or elastomeric material.

As illustrated in figure 2 (as well as in the figure 3 ), a holding wedge 240 has in cross section a substantially rectangular shape, elongated in the direction of the axis X, so as to comprise a lengthwise side lying flat on the first wall 111 of the central cell 110. In an exemplary embodiment, this side length can be glued to the first wall 111 of the central cell 110. A holding wedge 240 also comprises a widthwise side bearing against a shoulder 171 of the auxiliary cell 170 so as to be held in place against said auxiliary cell 170. The side opposite to that bearing against the auxiliary cell 170, so right on the figure 2 , has at its end an oblique projection 241, substantially directed along the first bisector XZ plane, but nothing forbids to have a different inclination angle. Said oblique projection 241 further comprises a free end 242 forming, in a direction substantially orthogonal to that of the oblique projection 241, a curved rim 242 bearing on the bead section 230, in this example on the left side of the bead section 230. Such a configuration is advantageous because it allows, in combination with the fixing means, to prestress the glazing section 230 against the glazing 300. In this way, when the opening frame 200 is provided with its glazing 300, can cut it to a predetermined size at a precise and correct cutting angle, the mechanical clearances having been eliminated.

In a more specific embodiment, the oblique projection 241 of a holding wedge 240 comprises two substantially parallel arms each comprising at their free end a curved flange 242 having characteristics similar to those described above. Such a configuration makes it possible to further improve the strength of the assembly formed by the hollow profile 100, the glazing section 230 and the glazing, in particular by increasing the bearing surface between the oblique projection 241 and the glazing section 230. .

It should be noted that a holding wedge 240 has a dimension of greater predetermined length (this dimension is counted, on the figures 2 and 3 , in the direction normal to the plane XZ), so that the sash frame 200 is provided with a plurality of spacers 240 spaced apart and distributed evenly over the entire periphery of its rabbet profile 180. Nothing excludes d have a monolithic holding wedge running continuously, in the normal direction to the XZ plane, all the rabbet profile 180 of the hollow section 100. The use of several shims of maintaining 240 nevertheless has the advantage of reducing the use of material, thus reducing the weight of the sash frame 200 (and also, ultimately, costs), without sacrificing the quality of maintenance.

Furthermore, the sash frame 200 has glazing support blocks 250 resting on the holding wedges 240 and intended to maintain the positioning of the glazing unit 300 in the rebate profile 180. The glazing support blocks 250 are example made of plastic or hardwood or elastomeric material, glued on the holding wedges 240 and have a cross section, as shown by way of no limitation in the figure 2 , a substantially rectangular shape. These support wedges 250 have the particular function of ensuring and maintaining the correct positioning of the glazing 300 in the rabbet 180 while avoiding the direct contact between the glazing 300 and the profile those 100 (moreover, such contact is already avoided in the present invention thanks to the holding wedges 240). They also allow the weight of the glazing 300 to be transferred to localized locations of the sash frame 200. There are several types of wedges, such as seat blocks, peripheral wedges or even lateral wedges, these examples being good known to those skilled in the art who will choose among them to obtain a desired result (transmitting the weight of the glazing, maintaining the squareness, removing slippage of the glazing in its plane, etc.).

• un premier joint 260 positionné entre le vitrage 300 et l'alvéole auxiliaire 170, ledit premier joint 260 étant configuré pour être monté par clipsage sur l'alvéole auxiliaire 170. Par exemple, l'alvéole auxiliaire 170 comporte une rainure de clipsage 172 sur une paroi en regard du vitrage 300, ledit premier joint 260 comportant dès lors une saillie de clipsage, au niveau de sa périphérie, coopérant avec ladite rainure de clipsage 172 par complémentarité de forme ;
• un deuxième joint 261 positionné entre le vitrage 300 et le profilé de parclose 230, par exemple en appui sur un épaulement dudit profilé de parclose 230 ;
• des troisième 262 et quatrième 263 joints positionnés de part et d'autre de l'ouverture 125 de la deuxième paroi 122 de l'alvéole de liaison 120 de sorte à réaliser la fonction d'étanchéité entre le châssis d'ouvrant 200 et le châssis dormant lors de leur coopération mutuelle pour la fermeture de l'ouverture vitrée.

The sash frame 200 further comprises sealing means for sealing between the glazing unit 300 and the glazing section 230, the glazing unit 300 and the auxiliary cavity 170 and between the opening 125 of the connecting cell 120 and the dormant frame of the glazed opening. These sealing means are, for example, seals, more particularly, and as shown in FIG. figure 2 :

• a first seal 260 positioned between the glazing unit 300 and the auxiliary cavity 170, said first seal 260 being configured to be clipped onto the auxiliary cavity 170. For example, the auxiliary cavity 170 has a clipping groove 172 on a wall opposite the glazing 300, said first seal 260 then having a clipping projection, at its periphery, cooperating with said clipping groove 172 by form complementarity;
• a second seal 261 positioned between the glazing unit 300 and the glazing section 230, for example resting on a shoulder of said glazing section 230;
• third 262 and fourth 263 joints positioned on either side of the opening 125 of the second wall 122 of the connection cell 120 so as to perform the sealing function between the sash frame 200 and the frame sleeping during their mutual cooperation for the closure of the glazed opening.

These seals are for example made of polyester, thermoplastic material, or EPDM (acronym for "ethylene-propylene-diene monomer"), the person skilled in the art knowing how to choose the most suitable material according to the desired properties.

In addition, the sash frame comprises adhesive means 270 arranged in abutment on the rabbet profile 180 and intended to ensure the mechanical strength of the assembly formed by said hollow profile 100 and the glazing 300.

For example, said adhesive means 270 are glue, or else an adhesive tape as used in the field of building (for example double-sided tape). For this purpose, said adhesive means 270 are characterized by a sticking power chosen in a range of values so as to allow the auxiliary cell 170 to adhere to the glazing 300, as well as to remain attached thereto. The properties of the adhesive substances are well known to those skilled in the art who will be able to choose, especially in the catalog of products offered by the specialized manufacturers, a range of adhesives of compositions adapted to the characteristics of the invention.

In the example of the figure 2 , said adhesive means are double-sided tape 270 positioned between the glazing unit 300 and the auxiliary cavity 170, below the first seal 260. It should also be noted that, in addition to ensuring the maintenance of the glazing unit 300 against the Auxiliary cell 170, such a double-sided tape 270 also improves the vibration attenuation of the glazing 300, thereby acting as a damper.

In a preferred embodiment, the sash frame 200 has protection profiles 281, 282 cooperating reversibly with the assembly means.

These protection profiles 281, 282 are intended, on the one hand, to protect the hollow section 100, as well as the elements which are fixed thereto, namely the bead section 230 as well as the holding blocks 240 and glazing support 250, various aggression (mechanical damage, rain, wind, projectiles, etc.), but also contribute to improving the overall thermal performance of the opening frame 200 since they constitute a first bulge of the hollow profile 100 relative to the external environment 20.

• deux saillies supérieures 281d, agencées sur sa paroi supérieure 281b, coopérant avec les deux gorges d'assemblage 193 de la paroi supérieure de l'alvéole auxiliaire 170,
• une saillie centrale 281e, agencée sur sa paroi latérale 281a, coopérant avec un espacement 194 entre les parois inférieure et supérieure respectivement de l'alvéole latérale supérieure gauche 130 et de l'alvéole latérale inférieure gauche 140,
• un épaulement inférieur 281f, agencé sur sa paroi inférieure 281c, coopérant avec l'épaulement d'assemblage 195 de l'alvéole latérale inférieure gauche 140.

As illustrated in figure 2 (The protection profiles 281, 282 are also represented in the figure 3 ), a protection profile 281, 282 has a U-shaped cross-section having a side wall 281a, 282a joining an upper wall 281b, 282b and a lower wall 281c, 282c. In this example, the sash frame 200 comprises two protection profiles 281, 282 arranged on either side of the hollow profile 100, namely protection profiles respectively left 281 and right 282. The left protection profile 281 cooperates with with the assembly means arranged on the left side of the hollow profile 100. More particularly, the left protection profile 281 has, on the inside 20 of its walls:

• two upper projections 281d, arranged on its upper wall 281b, cooperating with the two assembly grooves 193 of the upper wall of the auxiliary cell 170,
• a central projection 281e, arranged on its side wall 281a, cooperating with a spacing 194 between the lower and upper walls respectively of the upper left lateral cell 130 and the lower left lateral cell 140,
• a lower shoulder 281f, arranged on its lower wall 281c, cooperating with the assembly shoulder 195 of the lower left lateral cavity 140.

Similarly, the right protection section 282 comprises a lower shoulder, arranged on its bottom wall 282c, cooperating with the assembly shoulder of the lower right lateral cavity 160. In addition, the right protection section 282 cooperates with the level of its upper wall 282b with the baffle section 230 through two grooves made in an upper wall of said bead section 230 substantially similar to the assembly grooves 193 of the auxiliary cell 170.

Typically, the protection profiles 281, 282 are mounted by clipping on the hollow profile 100 and the bead section 230. The clipping ensures good hold of the entire sash frame 200, but also allows quick and easy disassembly Protection profiles 281, 282. Thus, the fact that the assembly means are configured for a reversible mounting of the protection profiles 281, 282 is particularly advantageous because it allows to change at will the cladding of the sash frame 200 "Dressing" refers here to appearance, shape and color. For example, the protection profiles 281, 282 are made of anodized aluminum, which also makes it possible to give them good resistance to wear, corrosion and heat. Nothing, however, excludes having other types of materials used in the constitution of protection profiles 281, 282, such as stainless steel, with imitation leather for appearance, wood, PVC etc. The choice of materials are, for example, considerations relating to aspects of texture, color, etc.

In addition, another particularly important advantage related to the fact that the protection profiles 281, 282 are mounted in a reversible manner is that this makes it possible to prevent any differential expansion phenomenon between the inner and outer sides of the sash frame 200 which is therefore not subject to the bimetallic effect. Indeed, contrary to what has been known until now, the protection profiles 281, 282 are not fixed permanently on the sash frame 200, for example by gluing or welding. In the case of a structure of the sash frame 200 completely stiffened by definitively fixing the protection profiles 281, 282, the deformations of the latter in case of high heat cause mechanical stresses that propagate to the entire structure of the said sash frame 200. In the present embodiment, the protection sections 281, 282 may also undergo local deformations due to temperature variations, especially when they consist of metallic materials such as aluminum, but these deformations do not affect the whole of the structure of the sash frame 200.

Ultimately, the sash frame 200 equipped with the hollow section 100 made of polyamide filled with glass fibers performs all the functions of a conventional opening (glazing support, closure on a frame, rolling of the opening on the frame, sealing to air, water and wind, finishing element), as well as good thermal performance while avoiding the bimetallic effect, by means of a simple design.

According to another aspect, the invention relates to a preconstituted assembly, or kit, comprising a hollow section 100 according to the invention and a bead section 230. These profiles are delivered in said kit so as to have a predetermined length, for example a length of 3 meters or 6 meters. After receiving the kit, it is possible to adjust by cutting the hollow profiles 100 and 230 bead in desired lengths and corresponding to the dimensions of the opening in the facade. The kit may also comprise in an alternative embodiment of the hollow profiles 100 and 230 bead already cut to a control length, such as for example a desired length by a particular customer, a gammist, etc.

In particular embodiments, the kit also comprises holding shims 240, glazing support shims 250, sealing means 260, 261, 262 as well as adhesive means 270. Those skilled in the art then proceed, upon receipt of said kit, mounting these different elements, so as to form a sash frame 200 according to the invention.

Preferably, said kit also comprises protection profiles 281, 282 according to the invention. Thus, when all the elements of the kit, apart from said protection profiles 281, 282 have been assembled together, said protection profiles 281, 282 are reversibly fixed by clipping onto the assembly means.

According to a last aspect, the invention relates to a method for producing a glazing on sash frame 200, by means of a kit according to the invention.

In an exemplary implementation, the holding wedges 240 and glazing support 250 as well as the sealing means 260, 261, 262 have been previously fixed on the hollow profile 100 and the bead section 230. It this is a prior step known per se. It should be noted that at this stage, the bead section 230 is not yet fixed to the hollow profile 100 by the fastening means 190. If necessary, it is then necessary to remove the bead section 230 of the hollow profile 100 this is done simply by exerting a traction force on said bead section 230, the fastening means 190 ensuring a reversible mounting.

Subsequently, the glazing section 230 being separated from the hollow profile 100, the glazing 300 is introduced into the rebate profile 180, resting against the adhesive means 270. For this purpose, if the adhesive means 270 comprise a tape of Scotch tape double face, it is appropriate, before introducing said glazing 300, to remove the protection of said double-sided tape so that it has a tacky surface facing the glazing 300 intended to bear.

Once the glazing 300 in place, the glazing section 230 is fixed in a stable position on the hollow profile 100 by cooperation with the fastening means 190. Finally, if the hollow profiles 100 and 230 bead delivered with the kit n were not at the desired lengths, then a cut should be made. Note that the holding shims 240 provide a preload of the bead section 230 against the glazing 300 advantageously facilitates any cutting operation.

In addition, the various hardware elements, for example for closing the sash frame 200 on the frame or for sliding said sash frame 200, are installed inside the connecting cell 120 a times the elements of the kit assembled according to the method of the invention.

In a preferred embodiment, when the kit comprises protection profiles 281, 282, the method comprises a step of assembling said protection profiles 281, 282 on the sash frame 200 by cooperation with the means of protection. assembly. It should be noted that the protection profiles are cut either after assembly on the hollow profile 100 and the bead section 230, or independently.

The above description clearly illustrates that by its different characteristics and advantages, the present invention achieves the objectives it has set for itself. In particular, it allows the realization of an opening on chassis having good thermal performance, to avoid thermal bends known to be responsible for differential expansion effects, and whose dressing can be changed as many times as desired.

Claims (14)

Hollow profile (100) for the construction of a sash frame (200), in particular a sliding frame, with a glazed opening, said sash frame (200) being intended to cooperate with a frame that is fixed from the glazed opening, said hollow section (100) comprising: two cells respectively said central (110) and connecting (120), each of said cells having a first wall (111, 121) intended to extend in a mean plane normal to the glazed opening, a second wall (112, 122) opposite said first wall (111, 121), as well as sidewalls (113, 114, 123, 124) connecting said first (111, 121) and second (112, 122) walls, lateral cells (130, 140, 150, 160) arranged on either side of said central (110) and connecting (120) cells, fastening means (190) for maintaining in a stable and reversible position a baffle section (230) of the sash frame (200), - Assembly means for maintaining in a stable position and reversibly protection profiles (281, 282) of the sash frame (200), said hollow profile (100) being characterized in that it is made of polyamide material loaded with glass fibers. Profile (100) according to claim 1, characterized in that each side wall (113, 114, 123, 124) of the central cells (110) and connecting (120) is merged with a wall of at least one of said lateral cells (130, 140, 150, 160), the profile further comprising a lateral cell, said auxiliary cell (170), configured to have walls all distinct from said side walls (113, 114, 123, 124), one of walls of the auxiliary cavity (170) forming, in association with the first wall (111) of the central cavity (110), a rabbet section (180) for holding the glazing (300). Profile (100) according to claim 2, characterized in that said fixing means (190) comprise a fixing groove (190), opposite to said auxiliary cavity (170) relative to the central recess (110), and formed by a protrusion (191) of the first wall (111) of the central recess (110) in the extension of the rabbet profile (180) as well as by a wall of a lateral recess, the so-called support wall (192), which extends said first wall (111) on the opposite side to said auxiliary cell (170). Profile according to one of claims 1 to 3, characterized in that the assembly means comprise assembly grooves (193) formed in walls of the lateral cavities (130, 140, 150, 160) and / or spacings (194) between walls of the lateral cells (130, 140, 150, 160) and / or shoulders (195) of the walls of the lateral cells (130, 140, 150, 160). Profile (100) according to one of claims 1 to 4, characterized in that the second wall (122) of the connecting cell (120) has an opening (125) intended to cooperate with the frame of the opening frame glazed, the first wall (121) of the connecting cell (120) having an attachment groove (126), substantially arranged opposite said opening (125), and intended for mounting hardware elements of the chassis d opening (200). Profile (100) according to one of claims 1 to 5, characterized in that the second wall (112) of the central cavity (110) is merged with the first wall (121) of the connecting cell (120) . Profile (100) according to one of claims 1 to 6, characterized in that the polyamide material is of type 6/6 and the weight of the glass fibers is between 20% and 30% of the total weight of the hollow profile. Sash frame (200) for a glazing unit (300), in particular double glazing, with a glazed opening, characterized in that it comprises a hollow profile (100) according to any one of the preceding claims. Sash frame (200) according to claim 8, characterized in that it further comprises: - a bead section (230) cooperating with the fastening means (190), - Holders (240) regularly distributed in support on the rabbet profile (180) at the first wall (111) of the central recess (110), and for prestressed maintenance of the bead section (230). against said glazing (300), - support wedges (250) glazing resting on the holding wedges (240) and intended to maintain the positioning of the glazing (300) in the rebate profile (180), sealing means (260, 261, 262) for sealing between the glazing (300) and the glazing section (230), between the glazing (300) and the auxiliary cavity (170), and between the opening (125) of the connection cell (110) and the fixed frame of the glazed opening, - Adhesive means (270) arranged in abutment on the rabbet section (180) and intended to ensure the mechanical strength of the assembly formed by said hollow profile (100) and the glazing (300). Sash frame (200) according to one of Claims 8 to 9, characterized in that it comprises protection profiles (281, 282) cooperating reversibly with the assembly means (193, 194, 195). . Preconstituted assembly, or kit, for the constitution of an opening frame (200) according to claim 9, characterized in that it comprises: - a hollow section (100) according to any one of claims 1 to 7, a bead section (230), holding shims (240), glazing support shims (250), sealing means (260, 261, 262), adhesive means (270). Preconditioned assembly, or kit, according to claim 11, characterized in that it further comprises protection profiles (281, 282). Process for the production of glazing on a sash frame (200), by means of a kit according to Claim 11, the holding wedges (240) and the glazing support (250) as well as the sealing means (260, 261, 262) having been previously fixed on the hollow profile (100) and the bead section (230), characterized in that it comprises the steps of: introducing the glazing unit (300) into the rebate profile (180), - Fix the bead section (230) in a stable position on the hollow profile (100) by cooperation with the fastening means (190). A method according to claim 13, characterized in that it comprises, when the kit comprises protection profiles (281, 282), a step of assembling said protection profiles (281, 282) on the sash frame (200 ) by cooperation with the assembly means.

Images