EP3272990B1 - Profile element and centring element for a door or window leaf - Google Patents

Description

The invention relates to a profile element for the production of profile frames for window or door leaves. It also relates to a combination of a centering element for glazing for use in the rebate in a profile element according to the invention and such a profile element. It also relates to a sash for a window or a door with a number of profile elements according to the invention, which form a sash frame, and with at least one centering element according to the invention.

In the manufacture of window or door sashes, two basic methods are essentially used nowadays in order to connect glazing, for example insulating glazing, to the sash frame. In addition to conventional production by means of padding, this also includes the so-called adhesive technology, in which a firm and permanent connection between the glazing and the frame is achieved by means of an adhesive.

DE 20 2012 104 587 U1 shows a window or a door with a block profile that bridges the entire rebate base of a profile element and in which glazing is glued to the block profile.

From the DE 10 2006 042 423 A1 a window frame profile element is known, which additional reinforcement strips can be introduced. From the DE 10 2014 016 955 A1 a glazing rebate insert with pane centering is known.

There is therefore a need for a profile element that can be used in conventional production by means of padding as well as in adhesive technology and which makes it easier for the processor to meet the variety of customer requirements. With such a profile element it would ever be possible to decide on the basis of the order which production technology is to be used.

The invention is accordingly based on the object of providing such a profile or profile element and corresponding accessories so that the aforementioned needs of the market can be satisfied in a simple and cost-effective manner.

The invention solves this problem by means of a profile element for producing profile frames for window or door sashes with the features of claim 1, by means of a combination of such a profile element and a centering element to be used with such a profile element with the features of claim 7 and by means of a wing for a window or a door with the features of claim 14.

In each case preferred developments are the subject of corresponding subclaims.

A profile element according to the invention is used to produce profile frames for window or door leaves. It comprises a rebate which is used to accommodate glazing, in particular insulating glazing, and which forms a lateral rebate surface and a rebate base. The lateral rebate surface is designed and provided to overlap a lateral edge of the glazing, while the rebate base is designed and provided to overlap an end face of the glazing. In the profile element according to the invention, the rebate base is divided into three sections, namely a first section which directly adjoins the side rebate surface and in which the rebate base has a continuous sloping course that is inclined towards the side rebate surface; a second section which adjoins the first section, is separated therefrom by a step, and in which the rebate base has a course that is essentially perpendicular to the lateral rebate surface; and a third section which adjoins the second section and in which the rebate base likewise has a course that is essentially perpendicular to the lateral rebate surface, the second section and the third section having different height levels from one another.

Such a design of the rebate base is also referred to by the applicant as "multi-fold", the correspondingly configured profile element being suitable for adhesive production in addition to conventional production by means of padding and thus enabling the processor to meet various customer requirements. One and the same profile is always used, which means that the complexity of warehousing at the window or door manufacturer can be noticeably reduced, which means a corresponding cost advantage.

Therefore, according to a further aspect of the invention, the application comprises the combination of a centering element for glazing for use in the rebate in a profile element according to the invention with such a profile element according to the invention, which centering element according to the invention has the following features: an approximately plate-shaped base body with a finite longitudinal extension that transversely has at least two sections for its longitudinal extent, namely a first section in which the base body has at least two erecting webs protruding on one side of the base body essentially perpendicular to a plate plane of the base body with different extensions with respect to the plate plane, adapted to the inclined course of the rebate base, and a second section in which the base body has, at least in some areas, a wedge-shaped cross-section; at least one centering spring protruding in relation to the plane of the plate in the first section, which centering spring is designed in such a way that, when a load is applied in the direction of the plane of the plate, it causes a restoring force in the opposite direction; and at least one tensioning spring protruding laterally with respect to the base body and essentially parallel to the plane of the plate, preferably in the area of an edge of the two erecting webs facing the side rebate surface, which is designed in such a way that it causes a restoring force in the opposite direction when there is a load in the direction of the base body , and which is adapted to come into contact with the side folding surface; a dimension of the first section of the centering element being adapted to a corresponding dimension of the first section of the profile element in such a way that when there is contact between the tension spring and the lateral rebate surface, the centering element with its erecting web facing the second section rests laterally in the area of the step and is held in the rebate with a force fit is.

When using profile elements according to the invention together with at least one centering element according to the invention, a sash according to the invention for a window or door can be produced in which the at least one centering element is inserted into the rebate of the sash frame, with preferably at least two centering elements per frame side - with the exception of the lower one Frame side - can be used. Such a sash according to the invention further comprises glazing, preferably insulating glazing, which is inserted in the sash, so that it mechanically interacts with the centering spring with its glass pane or its cover pane facing the side rebate surface and loads it; and an adhesive which is introduced between the profile element and the glazing in the area of the rebate base and which permanently connects at least the glazing and the profile element to one another. In the area of the lower frame side, however, block bridges or the like are regularly used, which safely absorb the load on the glazing.

In the case of the profile element according to the invention, said first section of the rebate base essentially serves to arrange the centering element and for drainage. The mentioned second section of the rebate base enables the adhesive to be introduced, while the third section of the rebate base can be used to attach further elements, such as a glass retaining bead.

According to a first development of the profile element according to the invention it can be provided that this has a web-like projection in a transition area between the first section and the second section in the area of the step present there, which at the level of the second section a little way into the area of the first Section protrudes so that a corresponding undercut is formed there. The web-like projection or said undercut can serve to hold a centering element according to the invention in a form-fitting manner in a corresponding development of the same, which will be discussed in greater detail below.

In another development of the profile element according to the invention, it can be provided that at least one groove is provided in the third section, which is intended and designed for inserting the aforementioned glass retaining bead.

In yet another further development of the profile element according to the invention, it can be provided that a height level of the rebate base in the first section is below the height level in the second section at every point in the first section. The first section is consequently lowered everywhere compared to the second section, which can benefit the already described arrangement of the centering element in this area or the mentioned drainage function.

In yet another further development of the profile element according to the invention, it can be provided that the height level in the second section is below the height level in the third section. This advantageously ensures that a glazing bead fastened in the third section, regardless of any manufacturing tolerances, tilts slightly in the direction of the second section and thus in the direction of glazing that is regularly located there.

Yet another further development of the profile element according to the invention can provide that an extension of the second section transversely to a profile longitudinal direction is greater than a corresponding extension of the third section. The mentioned extension of the second section is preferably 1.5 times to 3 times as large as the corresponding extension of the third section. Most preferably, the mentioned extension of the second section is approximately twice as large as the corresponding extension of the third section. In this way, there is always sufficient space available for applying the adhesive - regardless of whether the glazing to be attached is single glazing or insulating glazing with two or even three (cover) panes.

In addition, in another development of the profile element according to the invention, it can be provided that the lateral rebate surface adjoining the first section of the rebate base has an undercut which in turn is used for a (form-fitting) definition of the centering element in this area can be used.

A first further development of the centering element provides that at least one lateral projection for engaging behind the web-like projection in the step area of the rebate base is formed on the erecting web facing the second section when the profile element has a corresponding web-like projection.

Another development of the centering element can provide that a recess or an opening is provided in the base body in the area of the centering spring, into which the centering spring can be moved when there is a correspondingly heavy load. In this way, the load-related area of use of the centering element can be increased.

In another development of the centering element, it can be provided that the centering spring is formed in one piece with the base body, preferably made of plastic. This results in a particularly simple and inexpensive embodiment of the centering element.

Another further development of the centering element can provide that the centering spring has a convex curvature with respect to the plane of the plate, preferably with a profiling or corrugation provided approximately in the region of its apex, most preferably in the form of a number of transverse notches. In this way, the centering spring can interact with the glazing in virtually any position. In addition, the mentioned curvature of the centering spring ensures that the glazing can easily slide open when it is inserted into a finished profile frame without the glazing, in particular the edge seal, being damaged. Said profiling or corrugation of the centering spring transversely to its extension can ensure that glazing that is in contact with the centering spring is secured against sliding down, for example during transport. In yet another further development of the centering element, it can be provided that the erecting web carrying the tensioning spring has a recess or an opening into which the tensioning spring is inserted when it is correspondingly stronger Load can be moved into it. In this regard, the same properties and advantages result as they have already been described above with regard to the recess or the opening in the area of the centering spring. Preferably, said recess or said opening can spatially coincide with the recess or the opening in the area of the centering spring, if such an opening / such a recess is provided.

In yet another further development of the centering element, it can be provided that the tensioning spring is formed in one piece with the base body or with the erecting web that carries the tensioning spring. The tensioning spring is preferably formed from plastic together with the base body or the entire centering element in order to obtain an embodiment that is as simple as possible to produce and inexpensive. Most preferably, the tensioning spring can have a curvature which is directed in the direction of the erecting web carrying the tensioning spring. This has proven to be particularly favorable for the intended interaction with a profile element in the area of its lateral rebate surface.

Another development of the centering element provides that ribs spaced apart from one another are arranged on an underside of the base body, which extend from the first section of the base body to or even into the second section and there are wedge-shaped in cross section towards their free end rejuvenate. Preferably, the named ribs also taper in a wedge shape in a plane perpendicular thereto, wherein the named ribs can, in the extreme case, taper to a point, as it were. Such a configuration has proven to be particularly useful so that the named ribs do not pose a noticeable obstacle to an adhesive introduced at the side.

In yet another further development of the centering element, it can be provided that a distance between adjacent ribs in the second section is partially filled at least for a pair of ribs with a material section, which material section ends at a distance from the free end of the ribs. It can furthermore be provided that the material section is also less than in a direction transverse to a longitudinal extension of the ribs having a corresponding dimension of the ribs. Said material section ensures a more stable configuration of the centering element in the area of the ribs, but in the last variant also does not hinder the flow of adhesive because the adhesive can flow through between the ribs below the stated material section.

In addition, in the further development of the centering element, provision can also be made for the base body to have a longitudinal bend in its first section on an upper side facing away from the erecting webs, which bend defines two separate flat surface areas. This expresses that the basically plate-shaped base body does not have to be flat on one surface, but can have separate, flat surface functional areas on the above-mentioned upper side - for example to enable glazing to slide open or to avoid damage to it.

In yet another further development of the centering element, it can be provided that the tensioning spring is designed on its front side facing away from the relevant mounting web for a positive engagement in the undercut in the area of the lateral rebate surface of the profile element, if the profile element has such an undercut. This improves the fixation of the centering element within the profile element.

In yet another further development of the centering element, when there is contact between the tension spring and the lateral rebate surface or between the support web and the profile step, the centering element rests in or on the second section of the rebate base in the area of its second section. This can ensure improved load dissipation via the centering element into the profile element.

Another development of the centering element can provide that longitudinal slots are provided in the centering element in the area of the second section and / or in the area of the first section, preferably in an area between centering springs in the case of a configuration with several centering springs. On the one hand, these longitudinal slots bring about a certain saving in material, which can have an impact on costs. They also enable a passage of adhesive, which can promote the secure fixation of the centering element within a profile element.

Yet another further development of the centering element provides that in addition to the tensioning spring, preferably adjacent to it, an additional fixed spacing projection is provided in order to limit a possible change in dimensions of the centering element when the tensioning spring is loaded. Said fixed spacing projection therefore specifies a minimum dimension of the centering element, which cannot be fallen below, even if the tension spring is excessively loaded and correspondingly deformed. This can ensure increased reliability of use of the centering element.

In a further development of the sash according to the invention, it can be provided that in the event that the glazing is insulating glazing, the thickness of which is greater than a corresponding dimension of the centering element, so that a cover pane of the insulating glazing is located directly adjacent to the rebate base in its second section Cover disk is glued or glued directly to the rebate base. In other words, the centering element is only located in the area or below one of the cover panes of the insulating glazing, while no centering element or part thereof is arranged between the other cover pane and the rebate base. An adhesive that touches this other cover pane can thus form a direct adhesive connection with the rebate base of the profile element, which can be desirable for reasons of connection security.

In yet another further development of the wing according to the invention, it can be provided that adhesive has penetrated into an area between the centering element and the rebate base, preferably in its second section or even into the first section of the rebate base. For example, such a penetration can take place between the above-mentioned ribs of the centering element or through the mentioned longitudinal slots, without the invention being restricted thereto. Adhesive that has penetrated in this way can further increase the stability of the adhesive connection between the profile element, glazing and centering element.

As already mentioned above, in a corresponding development of the sash according to the invention, a glass retaining strip can be inserted into the groove in the third section of the rebate base in order to laterally close off the connection area between glazing and rebate.

Figur 1

zeigt ein erfindungsgemäßes Profilelement im Querschnitt;

Figur 2

zeigt in perspektivischer Darstellung die Oberseite eines im Rahmen der Erfindung einsetzbaren Zentrierelements;

Figur 3

zeigt in perspektivischer Darstellung die Unterseite des Zentrierelements aus Figur 2;

Figur 4

zeigt eine Unteransicht des Zentrierelements aus Figur 2 und Figur 3;

Figur 5

zeigt eine alternative Ausgestaltung des Zentrier-elements;

Figur 6a

zeigt das Profilelement aus Figur 1 zusammen mit einem Zentrierelement und einer Isolierverglasung;

Figur 6b

zeigt das Profilelement aus Figur 1 zusammen mit einem Zentrierelement, einer Isolierverglasung und einem Klebstoff;

Figur 6c

zeigt das Profilelement aus Figur 1 zusammen mit einer Klotzbrücke und einer Isolierverglasung;

Figur 7

zeigt eine mit Figur 6a vergleichbare Anordnung im Detail; und

Figur 8

zeigt die Anordnung gemäß Figur 7 in perspektivischer Darstellung.

Further properties and advantages of the invention emerge from the following description of exemplary embodiments with reference to the drawing.

Figure 1

shows a profile element according to the invention in cross section;

Figure 2

shows a perspective view of the top of a centering element that can be used within the scope of the invention;

Figure 3

shows the underside of the centering element in a perspective view Figure 2 ;

Figure 4

FIG. 4 shows a bottom view of the centering element from FIG Figure 2 and Figure 3 ;

Figure 5

shows an alternative embodiment of the centering element;

Figure 6a

shows the profile element Figure 1 together with a centering element and double glazing;

Figure 6b

shows the profile element Figure 1 together with a centering element, insulating glazing and an adhesive;

Figure 6c

shows the profile element Figure 1 together with a block bridge and double glazing;

Figure 7

shows a with Figure 6a comparable arrangement in detail; and

Figure 8

shows the arrangement according to Figure 7 in perspective view.

Figure 1 shows in cross section a profile element according to the invention for the production of profile frames for window or door sashes, which profile element is provided in its entirety with the reference number 1. It forms one to take up a glazing (in Figure 1 not shown) serving fold, which is denoted by the reference numeral 2 and has an approximately L-shaped configuration in cross section. The fold 2 comprises a lateral fold surface at reference number 2a and a fold base at reference number 2b. The lateral rebate surface 2a is designed and provided to overlap a side edge of the glazing (not shown), while the rebate base 2b is designed and provided to overlap an end face of the glazing (not shown). In the profile element 1 according to Figure 1 the rabbet base 2b is divided into three sections, which is symbolized by vertical dash-dotted lines. These sections are hereinafter referred to as first section I, second section II and third section III. In the first section I, which directly adjoins the lateral rebate surface 2a, the rebate base 2b has an inclined course that is inclined towards the lateral rebate surface 2a. In the second section II, which adjoins the first section I and is separated from it by a step at reference number 2c, the rebate base 2b has a course that is essentially perpendicular to the lateral rebate surface 2a. In the third section III, which adjoins the second section II, the rebate base 2b has a course that is likewise essentially perpendicular to the lateral rebate surface 2a. How to get the Figure 1 still removed, the second section II and the third section III have different height levels from one another, the height level difference being denoted by the reference symbol h.

Overall, the profile element 1 is designed in the manner of a hollow-chamber profile element known per se, the further details of which will only be discussed insofar as they are of importance for the invention on which the application is based.

In a transition area between the first section I and the second section II, a web-like projection 2d is present in the area of the step 2c, which at the level of the second section (upper dash-dotted line in section I) a little way into the area of the first section I. protrudes, so that an undercut is formed in the area of the first section I below the projection 2d at reference number 2e.

In the third section III, the profile element I has at least one groove 2f which is intended and designed for inserting a glass retaining bead (not shown), which is known per se to the person skilled in the art.

How to get the Figure 1 still removed, a height level of the rebate base 2b lies in the first section 2c at every point of this section I below the height level in the second section II. This is graphically indicated in the area of the mentioned section I by the lower dash-dotted line, which represents a maximum height level Falzgrunds 2b in this section I represents. Correspondingly, the height level in the second section II is below the height level in the third section III, which has already been pointed out above. It is also noticeable that in the profile element 1 an extension of the second section II transversely to a longitudinal direction of the profile, ie between the two vertical dash-dotted lines, is significantly greater than a corresponding extension of the third section III to the right of the right dash-dotted vertical line. In the present case, the mentioned extension of the second section II is slightly more than twice as large as the corresponding extension of the section III.

It should also be pointed out that the lateral rebate surface 2a, adjacent to the first section I of the rebate base 2b, has an undercut 2g in its lower area, which will be discussed in greater detail later.

The profile described above is also referred to by the applicant as a "multi-fold profile" because it is suitable for a large number of uses, in particular due to the design described in sections I and II. This includes conventional blocking for fastening glazing in one of profile elements 1 according to FIG Figure 1 manufactured frame and - alternatively - a corresponding gluing of the glazing. As will become clear further below, section I in particular serves to position and fix a special centering element, while section II can be used to introduce an adhesive if necessary. Section III serves - as already mentioned - to attach a glass retaining strip or the like.

In the Figures 2 to 4 different views of a special centering element are now shown, which advantageously together with the profile element 1 according to FIG Figure 1 can be used. The centering element is designated in its entirety with the reference number 3. It comprises an approximately plate-shaped base body 3a with a finite longitudinal extension (in a direction L). Transverse to its longitudinal extent, said base body 3a has at least two sections that are in the Figures 2 to 4 are symbolically separated by dash-dotted lines. It is a first section, which is denoted by the reference symbol I ', and a second section, which is denoted by the reference symbol II'. In the first section I ', the base body 3a has at least two support webs which protrude on one side of the base body 3a essentially perpendicular to an (imaginary) plate plane of the base body 3a and are denoted by the reference numerals 3b, 3c. As the Figures 3 and 4th To illustrate, these erecting webs 3b, 3c do not have to be continuous in the longitudinal direction L. The erecting webs 3b, 3c are on the inclined course of the rebate base 2b in section I (cf. Figure 1 ) and therefore have different lengths in relation to the plane of the plate. In particular, the erecting web 3b is longer than the erecting web 3c, as one can Figures 2 and 3 can be found.

In the second section II ', the base body 3a has, at least in some areas, a configuration that is wedge-shaped in cross-section, as in particular the Figure 2 can be seen well at reference numeral 3d.

Furthermore, the centering element 3 comprises at least one centering spring which protrudes in relation to the plane of the plate in the first section I 'and is provided with the reference symbol 3e. In particular, the centering element 3 according to FIGS Figures 2 to 4 two such centering springs 3e which are arranged in the region of the ends of the centering element 3. The centering springs 3e are designed in such a way that they cause a restoring force in the opposite direction when there is a load in the direction of the plane of the plate, which will be discussed in greater detail below.

How to enlarge the detail too Figure 2 shows, the centering springs 3e at reference number 3e 'have a profile or corrugation approximately in the area of their apex which is formed in the form of a number of transverse notches. This profiling or corrugation 3e 'of the centering spring 3e transversely to its extension can ensure that a glazing (not shown here) in contact with the centering spring 3e is secured against sliding down, for example during the transport of a correspondingly equipped profile frame.

In addition, the centering element 3 comprises two tension springs 3f which protrude laterally with respect to the base body 3a and essentially parallel to the plane of the plate and which are arranged in the area of the erecting web 3b. This erecting web 3b is an edge located on the side rebate surface of the profile element (cf. Figure 1 ) facing the two support webs 3b, 3c. The tensioning springs 3f are designed in such a way that they bring about a restoring force in the opposite direction when there is a load in the direction of the base body 3a. Furthermore, they are designed and provided to come into contact with the side rebate surface of the profile element, which will be discussed in greater detail below.

How to do the Figures 2 to 4 still removed, a dimension of the first section I 'of the centering element 3 is adapted to a corresponding dimension of the first section I of the profile element 1 (cf. Figure 6a , b ) that in the event of contact between the tension spring 3f and the lateral folding surface 2a, the centering element 3 with its erecting web 3c facing the second section II of the profile element 1 rests laterally in the area of the step 2c and thus frictionally between the lateral folding surface 2a and the step 2c in the fold of the profile element 1 is held. This will be discussed further below, in particular with reference to those already mentioned Figures 6a , b entered into even more detail.

How to use the Figure 4 still removed, at least one lateral projection 3c 'is formed in the centering element 3 on the erecting web 3c facing the second section II', which serves to engage behind the web-like projection 2d of the profile element 1 in the area of the undercut 2e there, cf. Figure 1 . In the configuration of the centering element 3 according to the Figures 2 to 4 two such lateral projections 3c 'are provided, which are located in an area between the two centering springs 3e.

In the base body 3a of the centering element 3, a recess or an opening 3g is provided in the area of the centering springs 3e, into which the opening 3g the centering springs 3e can be moved (pushed) in with a correspondingly heavy load. This opening 3g coincides with a corresponding opening in the erecting web 3b, which carries the tensioning springs 3f, into which the tensioning spring 3f can be moved (pressed) under a correspondingly heavy load.

The centering springs 3e and the tensioning springs 3f are formed in one piece with the entire centering element 3 in a suitable plastic material.

The centering springs 3e have a convex curvature with respect to the plate plane of the base body 3a, while the tensioning springs 3f have a convex curvature in the direction of the erecting web 3b carrying the tensioning springs 3f.

On the underside of the centering element 3 - as can be seen particularly well in FIG. 4 - (stiffening) ribs 3h are formed, which extend from the first section I 'to the second section II' and are each spaced apart from one another in the longitudinal direction L. . At the transition from section I 'to section II', the centering element 3 according to FIGS Figures 2 to 4 two longitudinal slots 3i, which can allow the passage of adhesive. With reference numeral 3j, a longitudinal bend can also be seen on an upper side of the base body 3a facing away from the erecting webs 3b, 3c, which longitudinal bend defines two separate flat surface areas, namely an area 3k and an area 3l.

Finally, an additional fixed spacing projection 3m is provided adjacent to the tensioning springs 3f, which defines a minimum transverse dimension of the centering element 3 when the tensioning springs 3f are pressed into the area of the openings 3g.

In Figure 5 an alternative embodiment of the centering element 3 is shown, whereby only the essential differences from the embodiment according to FIGS Figures 2 to 4 should be discussed in more detail.

On the one hand, this concerns the spacing projections 3m mentioned above, which in the embodiment according to FIG Figure 5 are not present. In contrast, the centering element 3 according to FIG Figure 5 three centering springs 3e, as shown. In contrast to the design according to the Figures 2 to 4 The ribs 3f extend into the edge region of the centering element 3 and run there in the shape of a double wedge, that is to say to a point, as in FIG Figure 5 shown. In principle, the centering element 3 according to FIG Figure 5 in the second section II 'between adjacent ribs 3h an opening or free space 3n; Only between certain pairs of ribs, in this case the two end pairs of ribs and the middle pair of ribs, is this free space 3n partially filled with a material section 3p, which material section 3p, however, ends at a distance from the free ends of the ribs 3h in all cases. Also in a direction transverse to a longitudinal extension of the ribs, the material sections 3p each have a smaller dimension than a corresponding dimension of the ribs, as shown in FIG Figure 5 can be found. When the ribs 3h with their in Figure 5 recognizable underside rest on a surface, a flowable substance, for example adhesive, can penetrate into an area between the ribs 3h in any case.

The above-described configuration of the special centering element 3 according to FIG Figure 5 also corresponds to the design of the centering element in the Figures 7 and 8 , which will be discussed in more detail below. Figure 6a now shows schematically in cross section the interaction of profile element 1 according to FIG Figure 1 with a centering element 3 according to the Figures 2 to 4 and glazing in the form of insulating glazing 4. The latter comprises three (cover) panes 4a, 4b, 4c, which are arranged parallel to one another and connected in pairs by means of an edge bond 4d spaced from one another.

For the sake of clarity, in Figure 6a only explicitly designates those elements that are essential for understanding the function.

The centering element 3 is arranged in section I of the rebate base 2b in such a way that it touches the lateral rebate surface 2a with its tensioning spring 3f or with the spacer projection 3m, while its erecting web 3c rests on the side of the step 2c and thus through the spring action of the tensioning spring 3f is fixed positively in the profile. In addition, the web-like projections 3c 'engage behind the projection 2d, which the Figure 6a cannot be seen exactly. This also results in a form-fitting connection between centering element 3 and profile element 1. In addition, tension spring 3f is preferably also adapted to a shape of profile element 1 in the area of undercut 2g, so that a form-fitting connection also results in this area. While the centering element 3 stands up with its first section I 'with the erecting webs 3b, 3c in section I of the rebate base 2b, as shown, it rests flat on the underside in section II of the rebate base 2b in its section II'. With its wedge-shaped configuration at reference numeral 3d, the centering element 3 thus forms a run-up bevel for the glazing 4 when it - which is regularly the case - according to FIG Figure 6a is inserted laterally from the right in the fold 2 of the profile element 1. The cover plate 4a of the insulating glazing 4 facing the lateral rebate surface 2a interacts with the centering spring 3e, so that the latter according to FIG Figure 6a is loaded downwards and accordingly exerts an upwardly directed restoring force on the glazing 4. If such centering springs 3e are provided on all sides of a profile frame - with the exception of below - the glazing 4 can thus be aligned centrally in the frame, which is advantageous for subsequent gluing. Such bonding could according to Figure 6a take place in such a way that a relevant flowable adhesive is introduced from the right in section II between the rebate base 2b and the right cover pane 4c in order to permanently bond the glazing 4 to the profile element 1 and possibly also to the centering element 3. How Figure 6a shows, special glazing with three panes can be used in this way in the profile element 1 shown, without the invention being restricted thereto.

Finally, a glass retaining strip (not shown) can then be inserted into the groove 2f, as has already been pointed out.

Figure 6b shows the same arrangement as Figure 6a , but with adhesive applied 5. According to Figure 6b a flowable adhesive has been introduced from the right in section II between the rebate base 2b and the right cover pane 4c, which permanently bonds the glazing 4 (cover pane 4c and right edge bond 4d) to the profile element 1.

Figure 6c shows the use of a block bridge 6 instead of the centering element. This configuration can be used for load transfer in the lower frame area or in a variant of the use of the profile element 1 in which gluing of the glazing 4 is completely dispensed with in favor of conventional blocking. This illustrates the multiple uses of the profile element 1.

Figure 7 and Figure 8 show the use of the alternative centering element 3 according to FIG Figure 5 how especially the Figure 8 can be easily removed, together with double glazing. In the following, only the essential differences for the use of the centering element 3 according to FIGS Figures 2 to 4 or. Figure 6a , b entered into more detail.

That's how it is Figure 8 it is easy to see how the design of the ribs 3h and the material sections 3p enables adhesive to penetrate into an area between the rebate base 2b in section II and the centering element 3. Otherwise, the glazing 4 is centered by means of the centering springs 3e, while the tensioning springs 3f ensure that the centering element 3 is fixed between the lateral rebate surface 2a and the step 2c.

How in particular the Figures 7 and 8 can be clearly seen, an outer contour of the tensioning spring 3f can be adapted to a contour of the lateral rebate surface 2a in the contact area in order to achieve an additional positive connection between centering element 3 and profile element 1.

According to the Figures 7 and 8 For example, the adhesive provided for connecting the glazing 4 and the profile element 1 can be introduced under the cover pane 4b into the area between the profile and the glazing in order to permanently connect the profile element 1 and the glazing 4 to one another. In addition, an adhesive connection can be made with the centering element 3, as has already been pointed out.

Claims (15)

1. Profile element (1) for production of profile frames for window or door sashes, having a rebate (2) serving to receive a glazing unit (4), comprising a lateral rebate surface (2a) and a rebate base (2b), which lateral rebate surface (2a) is designed and provided for engaging over a lateral edge of the glazing unit (4), while the rebate base (2b) is designed and provided for engaging over an end face of the glazing unit (4), wherein the rebate base (2) is divided into three sections, namely a first section (I) which directly adjoins the lateral rebate surface (2a) and in which the rebate base (2b) throughout slopes towards the lateral rebate surface (2a); a second section (II) which adjoins the first section (I) and in which the rebate base (2b) runs substantially perpendicular to the lateral rebate surface (2a); and a third section (III) which adjoins the second section (II) and in which the rebate base (2b) runs substantially perpendicular to the lateral rebate surface (2a), wherein the second section (II) and the third section (III) have different height levels from one another, characterised in that the second section is separated from the first section by a step.
2. Profile element (1) according to claim 1, wherein
   in a transition region between the first section (I) and the second section (II) there is a rib-like projection (2d) in the region of the step (2c), which projection projects a short way into the region of the first section (I) at the height level of the second section (II).
3. Profile element (1) according to claim 1 or 2, wherein
   in the third section (III) there is provided at least one groove (2f) which is intended and designed for insertion of a glazing bead.
4. Profile element (1) according to any one of claims 1 to 3, wherein
   a height level of the rebate base (2b) in the first section (I) lies at every point below the height level in the second section (II).
5. Profile element (1) according to any one of claims 1 to 4, wherein
   the height level in the second section (II) lies below the height level in the third section (III).
6. Profile element (1) according to any one of claims 1 to 5, wherein
   the lateral rebate surface (2a) has an undercut (2g) adjacent to the first section (I) of the rebate base (2b).
7. Combination comprising a centring element (3) for a glazing unit (4) for use in the rebate in a profile element (1) according to any one of claims 1 to 6, and such a profile element (1), which centring element (3) has:

   an approximately plate-like main body (3a) of a finite longitudinal extent, which main body has, transversely with respect to its longitudinal extent, at least two sections, namely a first section (I') in which the main body (3a) has at least two mounting ribs (3b, 3c) which, on one side of the main body (3a), project substantially perpendicularly with respect to a plate plane of the main body (3a) and have different extents relative to the plate plane matched to the slope of the rebate base (2b); and a second section (II') in which the main body (3a) has, at least in some regions, a wedge-like shape (3d) in cross-section;

   at least one centring tongue (3e) which projects above the plate plane in the first section (I'), which tongue is designed in such a way that, under a load in the direction of the plate plane, it effects a restoring force in the opposite direction; and

   at least one clamping tongue (3f) which projects laterally with respect to the main body (3a) and substantially parallel to the plate plane,

   preferably in the region of the one of the two mounting ribs (3b) that is located at the edge and is to face towards the lateral rebate surface (2a), and which is designed in such a way that, under a load in the direction of the main body (3a), it effects a restoring force in the opposite direction, and which is designed to enter into contact with the lateral rebate surface (2a);

   wherein a dimension of the first section (I') of the centring element (3) is matched to a corresponding dimension of the first section (I) of the profile element (1) in such a way that, on contact between the clamping tongue (3f) and the lateral rebate surface (2a), the centring element (3) has its mounting rib (3c) that faces towards the second section (II') laterally in contact in the region of the step (2c) and is held in the rebate (2) by force-based engagement.
8. Combination (3) according to claim 7, wherein
   on the mounting rib (3c) that faces towards the second section (II') there is formed at least one lateral projection (3c') for engagement behind the rib-like projection (2d) according to claim 2.
9. Combination (3) according to claim 7 or 8, wherein
   in the main body (3a) in the region of the centring tongue (3c) there is provided a recess or an opening (3g) into which the centring tongue (3e) is movable when subjected to an appropriately high load.
10. Combination (3) according to any one of claims 7 to 9, wherein
    the centring tongue (3e) has a convex curvature relative to the plate plane, preferably with profiling or fluting (3e') provided approximately in the region of its apex, most preferably in the form of a number of transverse indentations.
11. Combination (3) according to any one of claims 7 to 10, wherein
    the mounting rib (3b) carrying the clamping tongue (3f) has a recess or an opening (3g) into which the clamping tongue (3f) is movable when subjected to an appropriately high load, which recess or opening (3g) preferably coincides spatially with the recess or the opening (3g) according to claim 9.
12. Combination (3) according to any one of claims 7 to 11, wherein
    the clamping tongue (3f), on its front side that faces away from the relevant mounting rib (3b), is designed for interlocking engagement in the undercut (2g) according to claim 6.
13. Combination (3) according to any one of claims 7 to 12, wherein
    in addition to the clamping tongue (3f), preferably adjacent thereto, there is provided an additional fixed spacer projection (3m) for limiting any potential change in the dimensions of the centring element (3) when the clamping tongue (3f) is subjected to load.
14. Sash for a window or a door, comprising:

    a sash frame which is composed of a number of profile elements (1) according to any one of claims 1 to 6;

    at least one centring element (3) according to any one of claims 7 to 13, which is installed in the rebate (2) of the sash frame, preferably at least two centring elements (3) per frame side, most preferably with the exception of a lower frame side;

    a glazing unit, preferably an insulated glazing unit (4), which is installed in the sash frame so that via its glass pane or its cover pane (4a) that faces towards the lateral rebate surface it co-operates mechanically with the centring tongue (3e) and subjects the latter to load; and

    an adhesive (5) which is introduced in the region of the rebate base (2b) between the profile element (1) and the glazing unit (4) and permanently connects at least the glazing unit (4) and the profile element (1) to one another.
15. Sash according to claim 14, wherein
    if the glazing unit is an insulated glazing unit (4) the thickness of which is greater than a corresponding dimension of the centring element (3), so that a cover pane (4c) of the insulated glazing unit (4) is located directly adjacent to the rebate base (2b) in the second section (II) thereof, that cover pane (4c) is directly adhesively bonded or bondable to the rebate base (2b).

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