EP2148037B1 - Sealing profile, in particular for the glass of a building window, and window including same - Google Patents

Description

The present invention relates to a section sealing section "U" intended to be fitted on the periphery of a panel, such as glazing for building window, and to be housed inside a frame . The invention also relates to such a window comprising a frame type "U" rebate on which this panel is reported with interposition of this sealing profile.

As illustrated in figure 1 , the sealing profiles 1 intended to be fitted on the periphery of a building glazing 2 generally have a U-shaped cross section formed by two legs 3 and 4 connected by a base 5, and they are made of a flexible material it is easy to lengthen when laying the profile 1 on the glazing 2, which is the first step of the assembly operation. In a second step, the frame 6 of the window - also of U-section and made of PVC or aluminum, for example - is interlocked on the profile 1 previously placed on the glazing 2.

This elongation to which the profile 1 is subjected when it is laid on the glazing unit 2 can cause an undesirable shrinkage of the profile 1 in the corners of the glazing unit 2 after assembly, this withdrawal being able to cause a water inlet at the level of of these angles thus penalizing the tightness obtained. A solution to this problem has been proposed by the Applicant in the patent EP-B-0 632 184 , which provides in the corners of the profile of transverse precut cuts made at the location of the base and legs, except for sealing lips. These notches make it easy to obtain, by deformation of the profile, rounded corner portions rounded and slightly warped at the location of these angles.

The time allocated for the installation of these U-shaped sections is generally very short, it is not conceivable to ensure that the operator will pay the necessary attention to avoid lengthening the profile.

Furthermore, it is required that such a sealing profile 1 remains well positioned on the wafer 2a of the glazing 2 during the nesting operation, and this positioning is only ensured at the present time by the elastic nipping effect generated by the deformation of the two legs 3 and 4 of the profile 1. this holding profile 1 on the glazing 2 is thwarted by the presence of a fatty product for mounting assistance (such as a silicone emulsion) and also by the vertical position of the glazing 2 during the introduction of the profile 1. In addition, if the profile 1 is not correctly positioned around the perimeter of the glazing 2 during its installation on the latter, it turns out that it may "loosen" in the lower part (ie on the area lower 2b of the rectangular wafer 2a of the glazing 2) before the interlocking of the frame 6 on this section 1 thus laid. This undesirable "loosening" for the tightness of the assembly is illustrated in broken lines at the figure 2 .

The document JP-A-9 032 429 has a U-shaped sealing profile for glazing which, for a good implementation during the fitting on this glazing and for a good resistance to tearing, comprises at the end of each leg of the U a portion of flexible sealing, the rest of the profile being more rigid. This sealing portion covers the upper half of the inner face of each leg and the top of the latter, and it comprises two flexible lips pressing on the glazing.

The document BE-A-720 134 discloses a sealing profile according to the preamble of claim 1 appended to this description.

An object of the present invention is to provide a section sealing section "U" intended to be fitted on the periphery of a panel and to be housed inside a frame, which remedies the all of the aforementioned drawbacks, this section comprising a base intended to be mounted against a peripheral edge of the panel and two legs respectively comprising two sealing portions intended to be sealingly applied to the panel on either side of this wafer, the profile incorporating (ie in one piece) extension means which, during mounting of the profile, to elongate in the direction of its height measured from its base and which are located below the portions of sealing, so as to facilitate the interlocking of the profile on the panel and in the frame and to optimize the sealing contact between these sealing portions and the panel.

For this purpose, a profile according to the invention is such that all or part of said extension means are located at the respective lower ends of said legs and / or at the lateral ends of said base connected to these legs.

It will be noted that these extension means may be located indifferently at the only lower end of each leg, at the only lateral end of the base, straddling these lower and lateral ends, or in combination with other means of extension. which are located on each leg above the corresponding lower end, as explained below.

It will also be noted that the elongation in the direction of an increase in the height of the legs of the U which is provided by these extension means makes it possible to ensure a good positioning of the profile when it is interlocked on the glazing and in the frame, while ensuring that the flashings of the sealing portions are perfectly pressed against the two opposite faces of the panel.

Advantageously, these extension means may comprise 2n intermediate portions (n integer equal to or greater than 1) flexible and deformable which are coextruded with the rest of the profile and which are softer (ie of lower Shore hardness) than the rest of the profile, with the exception of said sealing portions.

Preferably, said intermediate portions each extend over the length of the profile being symmetrical two by two with respect to the median longitudinal plane of the profile.

According to one embodiment of the invention, said extension means are further located in each leg in at least an intermediate portion thereof defining two zones separated from each other on the height of this leg.

In this case, these other extension means are located exclusively between the sealing portion of the corresponding leg and said base (ie below this sealing portion and above this base).

According to another characteristic of the invention, in each leg, at least one of said intermediate portions located above the base can be located in a lower zone of this leg substantially perpendicular to said base, an oblique upper zone s' extending above this intermediate portion away from the other leg and ending with said sealing portion.

According to another characteristic of the invention, these intermediate portions may extend at least over the entire adjacent thickness of the profile (for example over the entire thickness of each leg and / or the base). It will be noted that these intermediate portions could extend as a variant only over part of the thickness of the profile.

Advantageously, the intermediate portions forming each extension means according to the invention - whether it is located at the lower leg end and / or at the base lateral end, or above this base - can each be made of at least one elastomeric or thermoplastic material having a Shore A hardness which is inclusively between 0 and 80. Even more advantageously, these intermediate portions may each be made of a thermoplastic elastomer type "TPV"("TPV" for "ThermoPlastic Vulcanizate") preferably a thermoplastic transformation crosslinked elastomer such as that described in the patent EP-B-840 763 in the name of the Applicant, comprising a polymerization elastomer with a metallocene catalyst and a grafted polyolefin.

Also advantageously, the profile according to the invention can be made, with the exception of said sealing portions and said intermediate portions, in at least one elastomeric or thermoplastic material having a Shore D hardness which is included between 20 and 60, of so as to minimize the longitudinal elongation of the section once nested on the periphery of the panel. Preferably, the latter material is a thermoplastic olefinic elastomer semi-rigid type "TPO"("ThermoPlasticOlefin" elastomer "), whose coefficient of friction with the material of said frame (such as aluminum or PVC) is decreased and in fact promotes sliding.

It will be noted that this semi-rigid part of the profile (as opposed to the more flexible intermediate and sealing portions) makes it possible to guarantee the positioning of the profile on the edge of the glazing during the interlocking operation.

It will also be noted that this improved low coefficient of friction advantageously exhibited by the "TPO" used to form the semi-rigid part of the profile of the invention (except for intermediate and sealing portions) makes it possible to dispense with depositing on this profile. a sliding promoter agent vis-à-vis the frame to facilitate mounting on the latter, such as a silicone emulsion. This removal of the slip promoter on the semi-rigid part of the profile avoids all the disadvantages associated with the use of such an agent, such as its migration on the glazing which is sometimes incompatible with the silicone, which is for example the case of self-cleaning or screen-printed glazing.

It will further be noted that the aforementioned preferential use of "TPV" and "TPO" thermoplastic elastomers respectively for the coextruded flexible and semi-rigid parts of the profile of the invention also allows the production of colored profiles and makes it possible to obtain improved thermal insulation compared to that of known profiles, especially rubber, containing conductive fillers such as carbon black, because these "TPV" and "TPO" have a lower thermal conductivity. In addition, the use of these "TPV" and "TPO" advantageously results in a weight gain of the profile obtained, because of a lower density than a conventional rubber mixture, as well as by an easier recycling .

According to another characteristic of the invention, at least one of said intermediate portions of each leg which defines the two separate zones on the height of this leg may have, on its internal face facing the other leg, at least one flexible support lip coextruded and intended to elastically press on the panel so as to improve the tear resistance of the profile vis-à-vis the latter. Advantageously, the inner face of said or each intermediate portion (which defines these two zones separated on the height of each leg) may be substantially concave being delimited by these support lips which are then two in number and are respectively adjacent to said zones separated by this intermediate portion. Preferably, the or each support lip is made of an elastomeric or thermoplastic material having a Shore A hardness inclusively between 0 and 80.

According to another characteristic of the invention, at least one of said intermediate portions of each leg which defines the two separate zones on the height of this leg may have, on its outer face intended to be turned towards said frame, at least one foldable lip coextruded which extends substantially parallel to said base and which is intended in particular to provide bending a lateral wedging of the profile in this frame by facilitating the passage of the panel provided with the profile during its assembly in the rabbet and to ensure recovery manufacturing tolerances. Preferably, said or each foldable lip is made of an elastomeric or thermoplastic material having a Shore A hardness of between 30 and 90 inclusive.

According to another characteristic of the invention, said sealing portion of each leg may comprise a substantially fork-shaped free end with two sealing lips intended to be sealed against one face of the panel, this free end being adapted to tilt around a tilt axis located between these two sealing lips so as to facilitate the interlocking of the profile on the panel while avoiding the inversion of these lips in contact with said wafer and this panel face. Advantageously, the two sealing lips of each leg can be connected to the rest of the leg by an oblique section which extends with a decreasing thickness towards these lips being directed towards the other leg and away from said base said tilting axis being substantially located at the junction between this oblique section and said sealing lips, which form between them an angle of about 90 °.

A building window according to the invention comprises a glazing panel mounted on a frame of this window which is of "U" shaped rebate type, and this window is such that the panel is attached to this frame with the interposition of a profile sealing according to the invention as defined above.

• la figure 1 est une vue en section transversale d'un exemple de profilé d'étanchéité en U selon l'art antérieur qui est emboîté sur le pourtour d'un vitrage de fenêtre d'un bâtiment en étant logé dans la feuillure d'un cadre de cette fenêtre,
• la figure 2 est une vue schématique partielle en élévation d'un tel profilé d'étanchéité de l'art antérieur qui est monté sur le pourtour rectangulaire de ce vitrage, illustrant le « déchaussement » d'une partie basse de ce profilé vis-à-vis du vitrage,
• la figure 3 est une vue schématique en section transversale d'un profilé d'étanchéité en U selon un exemple de réalisation de l'invention, dont les jambes intègrent non seulement les moyens d'extension de leur hauteur selon l'invention aux extrémités inférieures des jambes et/ou latérales de la base du profilé, mais encore lesdits autres moyens d'extension au-dessus de cette base,
• les figures 3a et 3b sont respectivement deux vues schématiques partielles en section transversale de profilés d'étanchéité en U selon l'invention qui intègrent uniquement ces moyens d'extension aux extrémités inférieures des jambes et/ou latérales de la base du profilé, conformément à deux variantes de la figure 3,
• les figures 4 et 5 sont des vues schématiques en section transversale illustrant respectivement deux étapes du procédé d'assemblage d'un profilé de l'invention selon une variante de la figure 3, selon un mode particulier de mise en oeuvre de cet assemblage,
• la figure 6 est une vue schématique de détail en section transversale de l'extrémité libre pivotante de la portion d'étanchéité que comporte chaque jambe du profilé selon les figures 4 et 5, et
• les figures 7, 8 et 9 sont des vues schématiques de détail en section transversale de cette extrémité libre pivotante, illustrant respectivement trois phases du montage du profilé selon la figure 6 sur le pourtour d'un vitrage.

Other characteristics, advantages and details of the present invention will emerge on reading the following description of several examples of embodiment of the invention, given for illustrative and not limiting, said description being made with reference to the accompanying drawings, among which :

• the figure 1 is a cross-sectional view of an exemplary U-shaped sealing profile according to the prior art which is fitted on the periphery of a window glazing of a building while being housed in the rabbet of a frame of this window,
• the figure 2 is a partial schematic view in elevation of such a sealing profile of the prior art which is mounted on the rectangular periphery of this glazing, illustrating the "loosening" of a lower part of this profile vis-à-vis the glazing,
• the figure 3 is a schematic cross-sectional view of a U-shaped sealing profile according to an exemplary embodiment of the invention, the legs of which incorporate not only the means for extending their height according to the invention at the lower ends of the legs and or lateral of the base of the profile, but also said other means of extension above this base,
• the Figures 3a and 3b are respectively two partial diagrammatic cross-sectional views of U-shaped sealing profiles according to the invention which incorporate only these extension means at the lower ends of the legs and / or side of the base of the profile, in accordance with two variants of the figure 3 ,
• the Figures 4 and 5 are diagrammatic cross-sectional views respectively illustrating two steps of the method of assembling a profile of the invention according to a variant of the figure 3 , according to a mode particular implementation of this assembly,
• the figure 6 is a diagrammatic cross-sectional detail view of the pivoting free end of the sealing portion that each leg of the profile comprises according to the Figures 4 and 5 , and
• the Figures 7, 8 and 9 are diagrammatic cross-sectional detail views of this free pivoting end, respectively illustrating three phases of mounting the profile according to the figure 6 on the periphery of a glazing.

The sealing profile 101 according to the invention of section "U" which is illustrated in the figure 3 is particularly intended to be applied on the periphery of a glazing 102 (see figures 5 and 6 ) for a building window, and to be housed inside a frame 103 also in "U" (visible at Figures 4, 5 , 7, 8, 9 and for example PVC or aluminum). This profile 101 comprises, in a known manner, a base 104 intended to be mounted against a peripheral edge 105 of the glazing 102 and two legs 106 and 107 respectively comprising, at their free ends, two sealing portions 108 and 109 intended to be applied in a manner sealed on two opposite faces 110 and 111 of the glazing 102 on either side of the wafer 105.

• au niveau de chacune de ses jambes 106 et 107, deux portions intermédiaires d'extension 112 qui sont localisées entre la portion d'étanchéité 108, 109 correspondante et la base 104 (par exemple dans la moitié inférieure de chaque jambe 106, 107), et
• deux portions intermédiaires d'extension 112' qui sont chacune localisées à l'emplacement du bourrelet inférieur de liaison reliant la jambe 106, 107 à la base 104 (chaque portion d'extension 112' s'étendant de l'extrémité inférieure de la jambe à une extrémité latérale de cette base).

This profile of the figure 3 integrates in one piece:

• at each of its legs 106 and 107, two intermediate extension portions 112 which are located between the corresponding sealing portion 108, 109 and the base 104 (for example in the lower half of each leg 106, 107), and
• two intermediate extension portions 112 'which are each located at the location of the lower connecting bead connecting the leg 106, 107 to the base 104 (each extension portion 112' extending from the lower end of the leg at one lateral end of this base).

Each flexible and deformable extension portion 112, 112 '(having a Shore A hardness varying from 0 to 80 and preferably made of a "TPV" such as Vegaprene®) is coextruded with the remainder of the profile 101 and is softer (ie of lesser Shore hardness) than base 104 and that the remainder of this leg 106, 107 (which both have a Shore D hardness of 30 to 50 and are preferably made of a semi-rigid "TPO"), with the exception of the sealing portions 108 and 109, also coextruded.

These extension portions 112, 112 'are designed to allow, during assembly of the profile 101 on the glazing 102 and in the frame 103, to lengthen the two legs 106, 107 identically in the direction of an increase. their height (measured by definition from the base 104 in the X direction), so as to facilitate the interlocking of the profile 101 on the glazing 102 and in the frame 103 while optimizing the sealing contact between these sealing portions 108, 109 and the glazing 102.

As visible at figure 3 , the intermediate extension portion 112 of each leg 106, 107 separates two respectively lower 113 and upper 114 zones between them over the entire thickness of this leg 106, 107 (measured along the Y direction) and over the entire length of the profile 101, the extension portions 112, 112 'of the section 101 being in this example symmetrical to each other with respect to the median longitudinal plane P of the profile 101. The lower zone 113 is substantially perpendicular to the base 104, while that the upper zone 114 has an oblique portion 115 which deviates from the other leg 107, 106 and which ends with the sealing portion 108, 109, which is for example formed by two flexible sealing lips 116 and 117 for sealingly pressing on the faces 110 and 111 of the glazing 102.

In the preferred example of the invention illustrated in figure 3 each intermediate extension portion 112 has, on its substantially concave internal face facing the other leg 107, 106, two flexible support lips 118 and 119 coextruded and intended to elastically bear on the glazing 102. This inner face is defined below and superiorly by the support lips 118 and 119. The latter are for example both made of a "TPV" Shore A hardness can vary from 0 to 80, and they are designed to improve the tear resistance of the assembly during the maneuvering efforts of the frame 103 on the profile 101. Note that it would be noted that it would not be outside the scope of the invention to provide a single flexible support lip on the inner face of each extension portion 112, instead of the two lips 118 and 119 .

Alternatively, the or each flexible support lip coextruded (eg the two lips 118 and 119 of the figure 3 ) could have a Shore hardness lower than that of the rest of each extension portion 112, for example between 0 and 40 Shore A.

Still referring to the example of the figure 3 each extension portion 112 has, on its outer face intended to be turned towards the frame 103, a foldable lip 120 coextruded which extends substantially parallel to the base 104 and which is intended in particular to provide by bending a lateral wedging of the section 101 in the frame 103 by facilitating the passage of the glazing 102 provided with the section 101 during its assembly in the rabbet and ensure the resumption of manufacturing tolerances of the components of the assembly. This foldable lip 120 is for example also made of a "TPV" of Shore A hardness which may vary from 30 to 90. It will be noted that it would not be outside the scope of the invention to provide a plurality of foldable lips on the outer face of the invention. each extension portion 112, instead of the single lip 120.

Alternatively, the or each foldable lip coextruded (eg the lip 120 of the figure 3 ) could have a Shore hardness identical to that of the rest of each extension portion 112.

It will be noted that both the or each inner support lip that the or each foldable outer lip each extend directly from the corresponding extension portion 112, to allow their deformation during assembly of the section 101.

The profile 301 according to the first variant of the invention illustrated in FIG. figure 3a (of which only one leg 306 is visible in connection with a lateral portion of the base 304) is essentially different from that of the figure 3 , in that it comprises only two intermediate extension portions 312 (only one is visible at the figure 3a ) located at the location of the lower connecting bead 304a connecting the leg 306 to the base 304. Each extension portion 312 thus extends from the lower end of the leg 306 to a lateral end 304b of the base 304.

The profile 401 according to the second variant of the invention illustrated in FIG. figure 3b (of which only one leg 406 is visible in connection with a lateral part of the base 404) is different from that of the figure 3a , in that the only two intermediate extension portions 412 that it comprises (only one is visible at the figure 3b ) are limited to the only part of the lower connecting bead 404a which is adjacent to the lateral end 404b of the base 404, without extending on the leg 406 itself.

In a general manner, it is possible to assemble the sealing profile 101, 301, 401 of the invention between the glazing 102 and the frame 103 of the window, starting by fitting this profile (for example, such as that of the figures 3 , 3a or 3b ) on the perimeter of the glazing 102, then by fitting the frame 103 against this profile 101, 301, 401 thus arranged around the glazing 102 so as to make the bases and the legs of the frame 103 coincide with those of the profile 101, 301, 401 .

Alternatively and as illustrated in Figures 4 and 5 with reference to another sealing profile 201 according to the invention, this assembly can be achieved by inserting the profile 101 to 401 in the rabbet 103a of the frame 103 (see the figure which shows in solid lines two positions of the section 201 respectively out and in the rabbet 103a, and an intermediate position in broken lines of this section 201 for insertion into this rebate 103a), and then fitting the frame 103 and equipped with the profile 101 to 401 on the perimeter of the glazing 102 (see figure 5 which shows two positions of the glazing 102, with a position out of the frame 103 in solid lines and a mounting position in the rabbet 103a in broken lines).

In order to minimize the assembly time and the manufacturing costs, it is conceivable to mechanically reinstall the sealing profile 101 to 401 on a profile intended to be used for the production of the frame 103, before setting the lengths and before the framing operation (for example on lengths of 6 meters of the frame profile). In this case, we proceed then simultaneously with the setting to the desired length of this frame profile and the sealing profile 101 to 401. Note that the quality of the attachment of the sealing profile 101 to 401 must be sufficient to allow this last operation without "declipping" of the whole.

As illustrated in Figures 6 to 9 , which refer to themselves as Figures 4 and 5 and relate specifically to the sealing profile 201 shown therein, the sealing portion 208, 209 of each leg 206, 207 is formed by a pivoting fork with two sealing lips respectively upper 216 and lower 217, which are intended to be plated tightly on a face 110, 111 of the glazing 102. This fork is adapted to tilt around a pivot axis Z located between these lips 216 and 217, to facilitate the fitting of the profile 201 on the glazing 102 while avoiding the flipping of the lips 216 and 217 in contact with the wafer 105 and the faces 110 and 111 of the glazing 102 (see Figures 8 and 9 ). More specifically, the lips 216 and 217 are connected to the remainder of the leg 206, 207 corresponding by an oblique section 210 which tapers towards these lips 216 and 217 being directed towards the other leg 207, 206 and the opposite of the base 204, the tilting axis Z being located at the junction of the oblique section 210 and the lips 216 and 217, which form between them an angle α of about 90 °. As for the thickest end of this oblique section 210, it forms a shoulder 211 intended to abut against the free end 103b of the corresponding leg of the frame 103.

During the interlocking operation of the section 201 on the glazing 102 which is initiated at the figure 7 , the force exerted on the lower lip 217 tilts the upper lip 216 to seal on the glazing 102.

• obtention d'un allongement de chaque jambe 106, 107 ou 206, 207 dans la direction de sa hauteur lors du montage du profilé 101, 201, assurant ainsi un positionnement correct et aisé de ce dernier,
• optimisation du contact étanche entre chaque jambe 106, 107 ou 206, 207 et le vitrage 102 par l'intermédiaire des lèvres internes d'appui 118 et 119 que présente chaque portion d'extension 112 ou 212, et
• calage latéral du profilé 101, 201 dans le cadre 103 par flexion de la ou de chaque lèvre externe pliable 120 que présente chaque portion d'extension 112, laquelle lèvre 120 facilite en outre le passage du vitrage 102 pourvu du profilé 101, 201 lors de son montage dans le cadre 103 et assure la reprise des tolérances de fabrication.

In summary, it should be noted that the or each intermediate extension portion 112, 112 'or 212, 212' which is integrated by coextrusion with each leg 106, 107 or 206, 207 of the sealing profile 101, 201 according to the invention. The invention essentially fulfills the following three main functions:

• obtaining an elongation of each leg 106, 107 or 206, 207 in the direction of its height during assembly of the profile 101, 201, thus ensuring a correct and easy positioning of the latter,
• optimizing the sealed contact between each leg 106, 107 or 206, 207 and the glazing 102 via the internal bearing lips 118 and 119 that each extension portion 112 or 212 presents, and
• lateral wedging of the section 101, 201 in the frame 103 by flexion of the or each foldable outer lip 120 that each expansion portion 112 has, which lip 120 also facilitates the passage of the glazing 102 provided with the profile 101, 201 during its mounting in the frame 103 and ensures the resumption of manufacturing tolerances.

Claims (18)

1. Profiled sealing strip (101, 201, 301, 401) with a U-shaped section designed to be fitted around the periphery of a panel (102), such as a glazing pane for a building window, and fitted inside a frame (103), the profiled strip comprising a base (304) designed to be fitted against a peripheral section (105) of the panel and two side walls (306, 406) respectively comprising two sealing portions (108 and 109, 208 and 209) designed to be applied to the panel in a sealed manner on either side of this section, the profiled strip incorporating extension means (112, 112', 212, 212', 312, 412) which enable the profiled strip to be made longer in the direction (X) of its height as measured from said base when fitting it, and which are disposed underneath these sealing portions so as to facilitate fitting of the profiled strip on the panel and in the frame and optimise the sealing contact between these sealing portions and the panel, characterised in that all or some of said extension means (112', 212', 312, 412) are disposed at the respective bottom ends (304a, 404a) of said side walls (306, 406) and/or at the side ends (304b, 404b) of said base (304, 404) joined to these side walls.
2. Profiled sealing strip (101, 201, 301, 401) as claimed in claim 1, characterised in that said extension means (112, 112', 212, 212', 312, 412) comprise 2n intermediate flexible and deformable portions (n being an integer equal to or greater than 1) which are co-extruded with the rest of the profiled strip and which have a Shore hardness lower than that/those of the rest of the profiled strip, with the exception of said sealing portions (108, 109 or 208, 209).
3. Profiled sealing strip (101, 201, 301, 401) as claimed in claim 2, characterised in that said intermediate portions (112, 112', 212, 212', 312, 412) each extend along the length of the profiled strip, being symmetrical in pairs relative to the mid-longitudinal plane (P) of the profiled strip.
4. Profiled sealing strip (101, 201, 301, 401) as claimed in claim 2 or 3, characterised in that said extension means (112, 212) are also disposed in each side wall (106, 107 or 206, 207) in at least an intermediate portion thereof defining two zones (113 and 114) separated from one another across the height of this side wall.
5. Profiled sealing strip (101, 201, 301, 401) as claimed in claim 4, characterised in that at least one of said intermediate portions (112, 212) in each side wall (106, 107 or 206, 207 or 306) is disposed in a bottom zone of this side wall substantially perpendicular to said base (304), an oblique top zone (115) extending above this intermediate portion diverging from the other side wall and terminating with said sealing portion (108, 109 or 208, 209).
6. Profiled sealing strip (101, 201, 301, 401) as claimed in one of claims 2 to 5, characterised in that said intermediate portions (112, 112', 212, 212', 312, 412) extend at least across the entire adjacent thickness of the profiled strip.
7. Profiled sealing strip (101, 201, 301, 401) as claimed in one of claims 2 to 6, characterised in that said intermediate portions (112, 112', 212, 212', 312, 412) are each made from at least one thermoplastic or elastomeric material having a Shore A hardness inclusively within the range of between 0 and 80.
8. Profiled sealing strip (101, 201, 301, 401) as claimed in claim 7, characterised in that said intermediate portions (112, 112', 212, 212', 312, 412) are each made from a thermoplastic elastomer of the TPV type, preferably a cross-linked elastomer capable of thermoplastic transformation comprising an elastomer which is polymerised by a metallocene catalyst and a grafted polyolefin.
9. Profiled sealing strip (101, 201, 301, 401) as claimed in one of claims 2 to 8, characterised in that, with the exception of said sealing portions (108 and 109, 208 and 209) and said intermediate portions (112, 112', 212, 212', 312, 412), it is made from at least one elastomeric or thermoplastic material having a Shore D hardness inclusively within the range of between 20 and 60 so as to minimise longitudinal stretching of the profiled strip once fitted around the periphery of the panel (102).
10. Profiled sealing strip (101, 201, 301, 401) as claimed in claim 9, characterised in that, with the exception of said sealing portions (108 and 109, 208 and 209) and said intermediate portions (112, 112', 212, 212', 312, 412), it is made from at least one semi-rigid thermoplastic elastomer of the TPO type.
11. Profiled sealing strip (101, 201) as claimed in claim 4, characterised in that at least one of said intermediate portions (112, 212) of each side wall (106, 107) defining the two zones (113 and 114) separated across the height of this side wall has, on its internal face directed towards the other side wall (107, 106), at least one co-extruded flexible support lip (118 and 119) designed to be elastically supported on the panel (102) to make the profiled strip more resistant to being torn off the latter.
12. Profiled sealing strip (101, 201) as claimed in claim 11, characterised in that said internal face of said or each intermediate portion (112, 212) defining the two zones (113 and 114) separated across the height of each side wall (106, 107) is substantially concave, being bounded by said support lips (118 and 119), of which there are two and which are respectively adjacent to said zones (113 and 114) separated by this intermediate portion.
13. Profiled sealing strip (101, 201) as claimed in claim 11 or 12, characterised in that said or each support lip (118, 119) is made from a thermoplastic or elastomeric material having a Shore A hardness inclusively within the range of between 0 and 80.
14. Profiled sealing strip (101) as claimed in claim 4 or one of claims 11 to 13, characterised in that at least one of said intermediate portions (112) of each side wall (106, 107) defining the two zones (113 and 114) separated across the height of this side wall has, on its external face designed to be directed towards said frame (103), at least one co-extruded pliable lip (120) extending substantially parallel with said base (104) and which is designed in particular to provide the profiled strip with a lateral adjustment in the frame, thereby affording an easier passage for the panel (102) fitted with the profiled strip when it is being mounted in the window rabbet (103a) and to ensure that the manufacturing tolerances are restored.
15. Profiled sealing strip (101) as claimed in claim 14, characterised in that said or each pliable lip (120) is made from a thermoplastic or elastomeric material having a Shore A hardness inclusively within the range of between 30 and 90.
16. Profiled sealing strip (201) as claimed in one of the preceding claims, characterised in that said sealing portion (208, 209) of each side wall (206, 207) comprises an essentially fork-shaped free end with two sealing lips (216, 217) designed to be applied in a sealed manner against a face (110, 111) of the panel (102), this free end being designed to pivot about a pivot axis (Z) disposed between these two sealing lips in order to facilitate fitting of the profiled strip on the panel whilst preventing these lips from being turned back on contact with said section (105) and with this face of the panel.
17. Profiled sealing strip (201) as claimed in claim 16, characterised in that said two sealing lips (216 and 217) of each side wall (206, 207) are joined to the rest of the corresponding side wall by an oblique section (210) which extends towards these lips with a decreasing thickness, being directed towards the other side wall and opposite said base (204), said pivot axis (Z) being disposed substantially at the point where this oblique section and these sealing lips join, the latter subtending an angle α) of approximately 90°.
18. Building window with a glazing panel (102) mounted on a window frame (103) of the type with a U-shaped rabbet (103a), characterised in that the panel is mounted on this frame with a profiled sealing strip (101, 201, 301, 401) as claimed in one of the preceding claims disposed in between.

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