Glass folding inlay for a window frame profile and system and method for glazing a window frame

Abstract

The invention relates to a glass rebate insert (30) with a support plate comprising an inner (B2) and an opposing outer mounting edge (B1), with whose mounting elements (35, 36) the receiving plate can be fastened in the glass rebate (11) of a window frame profile (10), in particular by clamping or snapping, and which has a retaining arm (33) on each of the opposing side edges connecting the mounting edges (B1, B2), which extends with its free end towards the outer mounting edge (B1) and at least partially rises above the surface (37) of the support plate, onto which a glazing block (40) can be placed between the retaining arms (33), wherein the mounting elements (35) arranged on the outer mounting edge (B1) are arranged at or below the level of the surface (37) of the support plate, in particular within the thickness of the support plate.The invention also relates to a system comprising at least one window frame profile (10) and at least one glass rebate insert (30), as well as a method for glazing a window frame.

Description

[0001] The invention relates to a glass rebate insert with the features of the preamble of claim 1. The invention also relates to a system comprising at least one window frame profile and at least one glass rebate insert according to the preamble of claim 7, as well as a method for glazing a window frame according to the preamble of claim 8.

[0002] A glass rebate insert of the type mentioned is known, for example, from publications DE 200 00 902 U1, DE202009013402U1 and DE 20 2008 005 170 U1.

[0003] According to the known state of the art, the vast majority of building windows consist of a glass element with one or more laminated panes of glass, supported by a window frame made up of several window frame profiles joined at the corners. Depending on the application, the joined window frame profiles can form a fixed frame, e.g., in the case of fixed glazing, or a sash frame, e.g., in the case of operable windows.

[0004] A modern window should keep out moisture, reduce noise, be windproof, and offer good thermal insulation. To ensure this, the glass pane must be properly fixed in the window frame.

[0005] It is known that window frames can contain several glazing blocks, which serve as glazing blocks and are inserted into the air gap between the edge surfaces of the glass unit and a glazing rebate. A glazing rebate corresponds to a groove in each window frame profile of the window frame or sash, in which the glass unit is held at its edge. The glazing blocks create a cavity that can accommodate changes in shape or movement of the glass unit. This cavity also serves as a vapor pressure equalization layer and supports ventilation of the rebate. This is particularly important when water vapor has formed. If this vapor were not dissipated, moisture, as well as pressure, could create additional stress on the glass unit and increase the risk of mold growth.

[0006] Glazing blocks are, for example, plastic sheets, particularly those with at least a substantially rectangular cross-section, preferably available in various thicknesses. Essentially, glazing blocks are therefore plastic cuboids.

[0007] Additionally, the glazing blocks secure the glass pane in the frame. If the glass pane were to hang loosely in the sash, the entire window would lack stability, as the frame alone is not rigid enough. After only a short time, the window would no longer close properly and would therefore become warped.

[0008] Another function of glazing blocks is to properly distribute the weight of the glass element on the frame. Without this distribution, the window frame, for example a window sash frame, could sag, preventing the window from closing.

[0009] Some window frame profiles are not always flat enough in the rebate area of ​​the glass rebate to allow for a sufficiently large contact surface for the glazing block. To compensate for this, glass rebate inserts are provided. They even out irregularities and thus ensure a larger, and especially flat, surface on which a glazing block can be attached.

[0010] Rebate surfaces can be uneven in certain areas, for example, if they include a drainage groove that runs, for instance, at the transition between the inner wall of the outer rebate and the rebate surface. A glazing rebate insert can cover such a groove. Glazing rebate inserts also serve to hold a glazing block in position. For this purpose, retaining arms, preferably flexible ones, can be provided on the side edges of a glazing rebate insert that are opposite each other in the direction of the window frame profile. These retaining arms project at least partially above the level of the surface of the glazing rebate insert's support plate and can thus laterally grip a glazing block placed on the support plate.

[0011] The glazing rebate in a window frame profile is partially filled by inserting, for example, clipping in, a glazing rebate insert into the groove of the glazing rebate, creating a larger, flat bearing surface for the glazing block. The bearing plate of a glazing rebate insert has a bottom surface that, after insertion into the glazing rebate, faces the rebate surface, and a top surface onto which a glazing block can then be placed. This can preferably be done on all four sides of the window frame, in the case of fixed glazing in the frame or in the sash.

[0012] The glass rebate insert thus levels the glass rebate at least partially and, preferably through the shaping or structuring of its underside resting on the rebate surface, enables the drainage of any water that may have penetrated the glass rebate.

[0013] According to current technology, flat, plate-shaped elements, referred to here as support plates, are used as glazing rebate inserts, usually made of plastic. Glazing rebate inserts serve only to compensate for the rebate and / or to position a glazing block in the window frame profile and do not replace the glazing blocks. They must not come into contact with the glass element itself.

[0014] Window frame profiles are preferably hollow plastic profiles, but can also be aluminum or wood profiles, as well as composite profiles, e.g. made of hollow plastic profiles with aluminum outer shells or wood profiles with aluminum outer shells.

[0015] Numerous solutions are known that describe the design of glass rebate inserts for conventional glass rebate grooves. For example, utility model DE 20 2018 106 829 U1 describes a glass rebate insert with retaining clips designed to prevent the glazing block from slipping.

[0016] The glass rebate insert described in this document is spring-loaded and clamped into the glass rebate of a window frame profile. For this purpose, the insert has fastening elements on two opposing edges for clamping it into the glass rebate. At least one fastening element is provided on an inner edge to interact with an inner wall that defines the rebate surface and to which the glazing bead groove also abuts. Fastening elements are also provided on the outer edge that interact directly with an outer wall that defines the glass rebate and simultaneously forms the inner wall of the outer overlap of the frame profile, which transitions seamlessly into the concave groove of the glass rebate.

[0017] The fastening elements on the outer edge of the known glass rebate insert are designed to project upwards beyond the surface of the support plate of the glass rebate insert, onto which the glazing block is placed. These fastening elements ensure that a glazing block placed on the surface of the support plate is kept at a distance from the inner wall of the outer rebate.

[0018] The directional terms used in this description of the invention, such as inside, outside, top, and bottom, refer to a typical installation situation on the lower horizontal window frame profile, for example, a sash frame profile. The inner mounting edge of a glazing rebate insert faces the interior or the glazing bead groove, and the outer mounting edge faces the exterior environment or the outer overlap of the window frame profile. In this installation situation, the surface of the support plate of a glazing rebate insert faces upwards, so that a glazing block can be placed on it. The underside faces downwards. The directional terms change accordingly when considering other profiles.

[0019] A resilient retaining arm is attached to each of the two opposing edges of the glass rebate insert, which run essentially perpendicular to the mounting edges. These arms extend partially across the surface of the support plate. The areas extending across this surface can interact with a glazing block to position it. One problem is that glass rebate inserts are not typically designed to fit every window frame profile with its varying glass rebate grooves. Therefore, special glass rebate inserts are required for non-standard glass rebate shapes to ensure the final positioning of the glazing block and the glass unit.

[0020] For example, designs using hollow plastic profiles, such as those with aluminum facings, may require that the glass elements be pressed very tightly against the outer overlap. However, it is difficult to subsequently reposition glass elements that are resting on the glazing block.

[0021] Furthermore, it is problematic to ensure sufficient overhang of the glazing block over the edge face of the glass element with such window frame profiles, since the close proximity of the glass element to the outer overlap in its inner wall area does not provide enough space for the overhang of the glazing block, especially when a glazing block of the aforementioned state of the art with raised fastening elements is used.

[0022] The object of the invention is therefore to provide a glazing rebate insert that ensures the positioning of a glazing block, in conjunction with a glass element arranged thereon, even in window frame profiles with confined space in the glazing rebate, particularly those resulting from the special shape of an external overlap. Preferably, it is also an object to achieve a defined position between the edge face of the glass element and the glazing block. Furthermore, it is an object to provide a glazing rebate insert that is suitable, for example, for special sash rebate shapes / external overlap shapes with rebate steps and an extended rebate base, to ensure that the glazing block, along with the glass element, slides into its final position, for example, due to the special shape of the sash rebate.

[0023] This problem is solved by a generic glass rebate insert with the further characterizing features of claim 1. The problem is also solved by a system with the characterizing features of claim 7 and a method for producing a glazing of a window frame with the characterizing features of claim 8.

[0024] The invention preferably relates to window frame profiles, e.g., window sash frame profiles, particularly those made of plastic, which have a sash rebate or outer overlap without hollow chambers. Here, the outer overlap or sash rebate serves, for example, to attach aluminum cladding panels / facades. Such window (sash) frame profiles are, for example, single-walled and web-like at the outer overlap / sash rebate and are characterized by a substantially vertical sash rebate web / outer overlap web, which terminates in a rebate step on its inner wall, or transitions on its inner wall via the rebate step into the glazing rebate or an adjacent concave groove. In this embodiment, the groove of the glazing rebate is bounded on the outside by the aforementioned rebate step, and thus, in particular, not by the inner wall of the outer overlap as in the prior art.On the inside, the groove of the glass rebate is bordered by a rebate step, which also forms part of the wall of the glazing bead groove. The glass rebate, and in particular the rebate surface, is thus defined by the area formed between the two rebate steps and, together with the rebate steps, forms a groove. The groove, or rather the rebate surface, may have a depression running close to and parallel to the outer rebate step, below the prevailing level of the rebate surface. This depression creates the aforementioned concave groove, which can serve to channel any water that may have penetrated the glass.

[0025] During pre-assembly of the window, e.g., either lying on a brush table or in an upright frame, at least two glazing rebate inserts are attached in the glazing rebate between the rebate steps of the respective surrounding sash frame profiles, e.g., clipped in. The two rebate steps can be undercut, particularly when viewed from above towards the rebate surface, specifically such that the groove at the lower end of each rebate step is wider than at the upper end. Fastening elements can engage in such an undercut area at at least one of the fastening edges, preferably the fastening elements at both edges.

[0026] A glass rebate insert of the type according to the invention can be positioned with its fastening elements at the outer fastening edge on the outer rebate step and pivoted into the sash rebate from above and fastened with the fastening elements on the room side at the inner fastening edge on the inner rebate step. The fastening can preferably be effected such that the fastening elements at the fastening edges are designed as locking lugs or clamping lugs, preferably resilient locking lugs or clamping lugs, which engage in the undercut areas of the rebate steps, in particular in recesses under the upper step surfaces of the rebate steps.

[0027] The glazing blocks are placed on the surface of the support plate of the glass rebate insert, specifically on the grooved surface of the support plate. They lie between the retaining clips and are thus positioned at least laterally, i.e., in the longitudinal direction of the window frame profiles.

[0028] After a glass element is placed on a glazing block, these form a unit which, according to the invention, can be moved towards the inner wall of the outer rebate, since, according to the invention, the fastening elements of the glass rebate insert arranged at the outer fastening edge are arranged at or below the level of the surface of the support plate. These fastening elements at the outer fastening edge therefore do not project above the level of the surface of the support plate. Preferably, all fastening elements on the support plate are below the level of the surface or, at most, flush with the surface. More preferably, at least the fastening elements at the outer fastening edge, and preferably all of them, are positioned within the thickness of the support plate, i.e., between the surface and the underside of the support plate. As a result, they do not project beyond the support plate on any side.

[0029] A glazing block sliding over the preferably grooved surface can thus slide over these fastening elements, in particular also over the stepped surface of the outer rebate step, in particular also until the glazing block abuts the inner wall of the outer overlap above the rebate step.

[0030] Preferably, the invention provides that the retaining arms have projections at their free ends that point towards each other and preferably taper. These projections, which at least initially act like retaining hooks, hold a glazing block in a spaced position relative to the inner wall of the outer rebate. For this purpose, the glazing block can be pressed against the projections with its edge facing the outer rebate until it makes contact. The lateral retaining brackets prevent the glazing block from shifting laterally and create the desired distance to the inner wall. Particularly when the frame is mounted vertically, the lateral retaining brackets prevent the glazing block from slipping out of the glazing rebate inserts. Towards the sash stop, the projections act as a temporary stop for the glazing block.

[0031] According to the invention, the free ends of the retaining arms, in particular their opposing projections, extend beyond the outer mounting edge when viewed in the direction of the extension of the retaining arms from the inner to the outer mounting edge, and in particular beyond the fastening elements on the outer mounting edge. In this embodiment, the free ends form the elements of the glazing rebate insert that project furthest towards the inner wall of the outer rebate. In the assembled state, the projections at the free ends can even lie above the stepped surface of the outer rebate step. This design makes it easier to maintain a specific desired distance between the glazing block and the inner wall of the outer rebate when the glazing block is first placed on the support plate.

[0032] It may be provided that, after positioning the glazing block in contact with the projections at the free ends of the retaining arms, when a glass element is lowered onto the glazing block, in particular contacting along the seal in the outer overlap, the edge face of the glass element is positioned in such a way as to the glazing block that a desired or required overhang of the glazing block over the edge face is achieved.

[0033] By shifting the unit consisting of the glass element and the glazing block, the projections and thus the free ends of the retaining arms are displaced to the side, so that the glazing block penetrates through the projections through the free ends and the projections towards the inner wall of the outer overlap.

[0034] This can preferably be supported by the fact that the wall of each projection, on the side facing the outer mounting edge, has a distance that increases towards the outer mounting edge in the direction of the projection tip. This creates a chamfer on the projections for the glazing block, over which the retaining arms are pushed to the side.

[0035] It may further be provided that the retaining arms are angled / bent towards each other in an area between the projections at the free end and the point of connection to the support plate, in particular from a position parallel to and preferably spaced apart from a glazing block that can be placed on top. The development of the angled section may be closer to the outer mounting edge than to the inner mounting edge, relative to the overall extent of a retaining arm. Such a development forms a retaining bracket slope. It may be provided that the retaining arms only come into contact with a glazing block in this angled area, in particular at its end facing the projection, while otherwise the retaining arms run spaced apart from the glazing block. In this case, the glazing block is only held laterally in the bent / angled area.

[0036] The angled retaining brackets at their ends offer an advantage, as the glazing block is forced to slide along them as it moves towards the projections during insertion. This ensures that a glazing block narrower than the distance between the retaining arms in the unangled section is precisely centered in the glass rebate. The angled retaining brackets can also initiate a widening of the retaining arms during this step, particularly if the glazing block is wider than the distance between the free ends of the retaining arms in the angled section before the projections, but narrower than the distance between the retaining arms in the section before the angle. Even then, the projections still act as a stop for the glazing block, preventing it from sliding towards the outer overlap.

[0037] The glass element is inserted and, due to the heavy weight of the glass, it is shaped into the softer glazing block - usually made of plastic - and forms a unit with it.

[0038] The remaining glazing blocks can be inserted on the other sides of the frame, for example using a glazing lever. This tool is used to pry open the gap between the glass rebate insert and the glass pane in order to position the glazing block.

[0039] The first step of glass installation is complete when the glass element is enclosed by the frame and supported by the glazing blocks, which in turn are held in place by the glass rebate inserts. The glass elements rest against the glazing blocks, flush with the retaining clip projections and the glazing seal on the outer overlap.

[0040] In the final step, the glazing beads are installed and the wedge seal is inserted from above into the gap between the glass pane and the glazing bead. The glass pane is pressed between the outer glazing seal and the inner wedge seal, as if between two clamping jaws. The seals are compressed from their resting state to a predetermined dimension to achieve an effective seal.

[0041] This process requires centering by shifting the glass element within the glazing rebate. Since a mechanical bond already exists between the hard, heavy, and sharp-edged glass element and the glazing block, the intended shift occurs in the plane between the glazing block and the surface of the glazing rebate insert's support plate. The thrust direction is towards the outer sash stop / overlap.

[0042] The glass blocks pull the glass pane clamped between them towards the outer wing stop.

[0043] The glass rebate insert preferably has a grooved surface to offer the lowest possible frictional resistance to the glazing blocks. The glass rebate insert is designed so that the glazing block maintains its position between the retaining clips of the insert and is prevented from shifting longitudinally along the sash frame profile, while still allowing for thrust perpendicular to the window frame profile towards the sash stop / outer overlap.

[0044] Preferably in conjunction with the special rebate profile shape in the glass rebate, it is provided that by driving in the glazing bead or pressing the seal against the glazing bead, the glass element with the glazing block, which is still held in the projections of the retaining brackets, is moved, causing the retaining brackets to move completely apart so that the glazing block moves out of the hook-shaped projections of the retaining brackets, and preferably the glazing block is moved freely and, in particular, so far as to the sash stop, until the glazing block abuts the sash stop contact surface or the inner wall of the outer rebate. The retaining brackets lock the glazing block against longitudinal movement at all times, and in the final position the retaining brackets are located completely laterally next to the glazing block with the retaining bracket projections in contact with it.

[0045] In the final position, the glass element is completely on the glazing block, which in turn is located, in particular at least 1 mm, below the glazing seal.

[0046] The invention is explained in more detail below with reference to the drawings.

[0047] The figures show, in detail: Fig. 1a: Window frame and sash profile in closed position, section view with inserted glass rebate insert, glazing block, glass element and glazing bead. Fig. 1a: Detail view of Figure 1with glass rebate insert and glass block Fig. 2 a glass rebate insert in top view of the surface of the support plate without glazing block Fig. 2a a glass rebate insert in top view with glazing block initially in place Fig. 2b a glass rebate insert in top view with glazing block in place after its displacement Fig. 3 a glass rebate insert in side view Fig. 4 a glass rebate insert in perspective view Fig. 5 a mounted state of glass rebate insert in the window sash frame profile in perspective view

[0048] Figure 1The figure shows a cross-section through the lower horizontal profile area of ​​a closed window sash 100 of a window or door made of several window sash frame profiles 10. A glass rebate 11 is formed between the rebate steps 12 and 12'. A glass element 20 is enclosed by the seals 15 and 51 between a glazing bead 50 and the outer overlap / sash overlap 13 and rests with its edge face indirectly on the glass rebate via a glass rebate insert 30 inserted into a glass rebate 11 and a glass block 40 placed on the glass rebate insert 30.

[0049] The window sash profile 10 is a PVC core profile clad on both sides with aluminum shells 16. The glazing bead 50 consists entirely of aluminum, except for the gasket. This combination of PVC and aluminum optimally unites the advantageous corner welding possibilities of PVC profiles with the ideal surface properties of the aluminum shells 16. The sash rebate / outer overlap 13 is formed by a single-walled web and does not have hollow chambers, as is the case with conventional PVC profiles, which typically have an undercut at the transition to the glazing rebate 11.

[0050] In the embodiment shown here, a rebate step 12 is located at the lower end of the inner wall of the outer overlap 13, to which the drainage groove 17 adjoins. This groove is formed by a partially recessed area in the glass rebate that runs in front of the rebate step. The area between the rebate steps 12 and 12' together forms the glass rebate, into which the glass rebate insert 30 is clamped or snapped, e.g., clipped in.

[0051] The glazing block 40 rests flush on the surface of the support plate of the glass rebate insert 30 and is flush, preferably in contact with, the vertical inner wall 13' of the outer overlap 13. The glass element 20 forms a unit with the glass block 40. Due to the high weight of the glass element, the two elements are positively connected and can only be moved together.

[0052] Figure 1a shows a detailed view of Figure 1with glass rebate insert 30 and glazing block 40. The glass rebate insert 30 is attached in the glass rebate 11, between the rebate steps 12 and 12', e.g., by clipping it in. According to the invention, three height levels are preferably achieved, which are clearly visible in this view. The glass insert level a corresponds to the plane of the surface of the support plate, which is preferably designed as a grooved support surface 37. The lateral retaining brackets 33 are attached laterally to the support plate and rise obliquely upwards from level a to the retaining bracket level b, which corresponds to the surface of the retaining brackets, and continue from there, preferably parallel to the glazing block 40. Its upper surface lies at level c and forms the support plane of the glass element 20. The retaining bracket level b is lower than level c of the glass element 20.

[0053] Figure 2 The glass rebate insert 30 is shown in the top view.

[0054] The glass rebate insert 30 has a support plate with a surface 37 that is preferably grooved in this embodiment, designed to offer minimal frictional resistance to the glass block 40 resting on it. The grooves preferably run parallel to the side edges of the support plate, which connect the fastening edges to the fastening elements 35, 36, or in the direction of the spacing between the fastening edges and the fastening elements 35, 36. The surface may also have a different structure. The groove direction thus corresponds to the direction of movement of the glazing block.

[0055] The glass rebate insert 30 has clamping lugs or locking lugs 35 on its outer mounting edge B1, designed to engage in the undercut area at the rebate step 12 in a locking or clamping manner. The lugs 35 can have an end face that is complementary to the contact surface of the rebate step 12 facing into the glass rebate. Furthermore, the clamping lugs / locking lugs 35 can be made of a softer PVC than the window frame profile. They can be arranged on elastically resilient, curved, e.g., semicircular spring bars 35', which extend at their ends into the outer mounting edge B1. The spring bars 35' can be offset from the outer mounting edge B1 towards the interior of the support plate, in particular so that at least the window bars 35' are recessed behind the mounting edge B1 and only the locking lugs / clamping lugs 35 protrude.

[0056] The fastening elements 36 are arranged on the inner mounting edge B2. These elements also form, for example, locking lugs or clamping lugs 36, which are also arranged on spring bars 36'. In particular, these spring bars are part of the mounting edge B2 and can be formed by recesses in the support plate behind the fastening elements 36. These fastening elements 36 act together with the inner rebate step 12', which is also part of the glazing bead groove.

[0057] According to the invention, at least the fastening elements 35 are arranged such that they do not protrude upwards beyond the grooved surface 37.

[0058] Retaining brackets 33 are molded onto the side of the support plate of the glass rebate insert 30, which - as in Figure 3 shown, which sections I-IV have.

[0059] As in Figure 2As shown, the retaining bracket 33 has a first section I, which has a material connection with the support plate on and / or under the grooved surface 37 and which corresponds to the aforementioned glass rebate insert level a. In sections II, III and IV, i.e., outside the connection area when viewed from above, the retaining bracket 33 forms a gap 38 to the preferably grooved surface 37. In section IV, the retaining arms 33 are bent towards each other. There, they run at retaining bracket level b and obliquely to the grooves in the surface 37. Figure 1a To clarify, the free ends lie above the surface of the fold step 12, which can be level with surface 37 or lower than it.

[0060] Essential to the invention, the glass rebate insert 30 has retaining clips 33, which are elastically springable, such that the free ends can move away from each other. At the free end of each retaining clip 33, a tapered, in particular pointed, projection 34 is arranged. The projections 34 of both retaining clips are directed towards each other.

[0061] Figure 3 Figure 30 shows the glass rebate insert in a side view. In this preferred embodiment, support ribs 31 can be seen on the underside, with which the support plate is placed on the glass rebate surface between the rebate steps 12, 12'.

[0062] The glass rebate insert 30 has a first section I and a second section II on the retaining brackets 33, which extends obliquely upwards at an angle, preferably a shallow angle, to the glass rebate surface and to the support plate, in particular rising to retaining bracket level b. The third section III runs parallel to the surface 37 of the support plate at retaining bracket level b, with retaining bracket level b being above the glass rebate insert level a. The retaining bracket 33 preferably extends along its rising section, i.e., in the areas III and IV at such a height that at least the surface of the retaining brackets lies above the surface 37 of the support plate, so that a glazing block resting on it is guided laterally. Preferably, the respective retaining bracket also rests with its underside in certain areas, particularly in the areas III and IV above the surface 37 of the support plate.

[0063] Figure 4Figure 1 shows the glass rebate insert 30 in perspective view. The resiliently elastic locking lugs / clamping lugs 35 on the arc-shaped spring bars 35', as well as the locking lugs / clamping lugs 36 on the resiliently springy spring bars 36', allow for easy fastening, e.g., clipping the glass rebate insert 30 into the glass rebate 11 between the rebate steps. The surface of the glass rebate insert's support plate then lies at the level of the upper step surfaces of the rebate steps 12 and 12'; preferably, the upper step surfaces are lower than the surface 37. The drainage recesses 32 can drain condensation into the glass rebate between the support bars 31 and from there into the frame.

[0064] The side retaining brackets 33 are clearly visible; these form a lateral locking mechanism when the glass block 40 is inserted, due to the increasing height level.

[0065] Figure 5Figure 1 shows the assembled state of the glass rebate insert 30 in the window sash frame profile 10 in a perspective view. The locking lugs / clamping lugs 35 are located in the glass rebate 11 and are clipped into the rebate step 12 on their end faces. The retaining brackets 33 project above and in front of the groove support surface 37 at retaining bracket level b into the extended rebate base A, which here is formed by the stepped surface of the rebate step 12.

[0066] The Figure 2aThe inventive effect of the glass rebate insert is illustrated. In this top view, it can be seen that a glazing block 40 is placed on the grooved surface 37 of the support plate. The glazing block is guided laterally between the retaining brackets 33. The edge of the glazing block facing the outer overlap is held against excessive sliding towards the outer overlap by the projections 34 at the free ends of the retaining arms. Due to the inclined area 33' at the free end of the retaining arms, these arms only contact the glazing block at their free end, but otherwise run at a distance from the glazing block 30.

[0067] In this position, a glass element can be placed on the glazing block 40. The glass element (not shown here), including the glazing block 40, can then be pushed further towards the outer overlap 13, which is facilitated by the grooved surface 37.

[0068] Figure 2b This shows that by sliding the glazing block 40 between the projections 34, the edge facing the outer rebate lies in front of the projections 34. In this position, the edge is also positioned above the stepped surface of the rebate step 12 and can come into contact with the inner wall 13' of the outer rebate 13. Reference symbol list

[0069] 100 Window sash 10 Window sash frame profile 11 Glazing rebate 12, 12' Rebate step 13 Outer overlap / sash stop (PVC) 13' Inner wall of the outer overlap 13 14 Glazing bead groove 15 Glazing gasket 16 Aluminum covers 17 Drainage groove 20 Glazing element 30 Glazing rebate insert 31 Support bars 32 Drainage recesses 33 Retaining bracket 33' Bent area of ​​the retaining bracket 34 Projection 35 Fastening element / clamping lug / locking lug 35' Arc-shaped spring bars 36 Fastening element, clamping lug / locking lug 36' Elastically springable spring bars 37 Surface with grooves 38 Gap 39 Contact surface of glazing block 40 Glazing block 50 Glazing bead 51 Wedge gasket First section Second section III Third Section IV Fourth Section A Extended rebate base, step surface of the rebate step 12 B1 Outer fixing edge B2 Inner fixing edge a Glass rebate insert level b Retaining bracket level c Glass element level

Claims

1. Glass rebate insert (30) having a bearing plate which comprises an inner fastening edge (B2) and an oppositely situated outer fastening edge (B1), by way of whose fastening elements (35, 36) the bearing plate is fastenable, in particular in a clamping or latching manner, in the glass rebate (11) of a window frame profile (10), and having on the oppositely situated side edges connecting the fastening edges (B1, B2) in each case one holding arm (33) which extends at its free end in the direction of the outer fastening edge (B1) and is elevated at least regionally above the top surface (37) of the bearing plate, onto which top surface a glazing block (40) is placeable between the holding arms (33), wherein the fastening elements (35) arranged on the outer fastening edge (B1) are arranged at the level or below the level of the top surface (37) of the bearing plate, in particular within the thickness of the bearing plate, characterized in that that the free ends of the holding arms (33), when viewed from the inner fastening edge (B2) to the outer fastening edge (B1) in the direction of extent of the holding arms (33), project beyond the outer fastening edge (B1) and / or the bearing plate.

2. Glass rebate insert according to Claim 1, characterized in that, at their free ends, the holding arms (33) have projections (34), preferably tapering in each case, which are directed towards one another.

3. Glass rebate insert according to Claim 2, characterized in that the wall of each projection (34) on the side facing towards the outer fastening edge (B1) has, in each case in the direction of the projection tip, a spacing that increases in relation to the outer fastening edge (B1).

4. Glass rebate insert according to Claim 2 or 3, characterized in that the holding arms (33), in a region (IV) between the projections (34) at the free end and the location of the attachment to the bearing plate, are angled away in the direction towards one another, in particular are angled away from a position in which they are parallel to a placeable glazing block.

5. Glass rebate insert according to one of the preceding claims, characterized in that the free ends of the holding arms (33), in particular their projections (34) directed towards one another, when viewed from the inner fastening edge (B2) to the outer fastening edge (B1) in the direction of extent of the holding arms (33), project beyond the fastening elements (35) at the outer fastening edge (B1).

6. Glass rebate insert according to one of the preceding claims, characterized in that the top surface (37) of the bearing plate has a grooved structure with a multiplicity of parallel grooves which extend in the direction of the spacing of the two fastening edges (B1, B2).

7. System made up of at least one window frame profile (10) and at least one glass rebate insert (30) according to one of the preceding claims, wherein, in the window frame profile (10), there is arranged a glass rebate (11) in which the at least one glass rebate insert (30) is fastenable, in particular in a clamping or latching manner, by way of fastening elements (35, 36) arranged on two oppositely situated fastening edges (B1, B2), characterized in that the inner wall (13') of the outer overlap (13) of the window frame profile (10) transitions into the rebate surface (11) or a hollow (17) adjacent thereto via a rebate step (12) which interacts, in particular in a clamping or latching manner, with at least one fastening element (35) on the fastening edge (B1) of the glass rebate insert (30) and whose upper step surface is arranged at least substantially at the same level as, or at a lower level than, the top surface (37) of the bearing plate of the glass rebate insert (30) inserted into the glass rebate, in particular so that a glazing block (40) lying on the top surface (37) is pushable over the rebate step (12), in particular until contact with the inner wall (13') of the outer overlap (13) is made.

8. Method for glazing a window frame comprising a system according to Claim 7, characterized in that a glazing block (33) is placed onto the top surface (37) of the bearing plate of at least one glass rebate insert (30) between the holding arms (40), said glazing block being held by the holding arms (33) of the glass rebate insert (30) with a predetermined spacing to the inner wall (13') of the outer overlap (13), a glass element (20) is brought into contact with the glazing block (40), and the unit made up of the glass element (20) and the glazing block (40) is displaced on the top surface (37) of the bearing plate, in particular over the rebate step (12), preferably until the glazing block (40) comes into abutment with the inner wall (13') of the outer overlap (13).

9. Method according to Claim 8, characterized in that the displacement of the unit made up of the glass element (20) and the at least one glazing block (40) is realized by pushing the glass strip (50) into the glass strip groove of the window frame profile (10) or by pushing a seal, preferably a wedge seal (51), into the glass strip (50).

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