Composite frame for a window or door

Abstract

A composite frame (1) consists of a frame (2) and a sash (3) of a window and / or door. A stop seal (4) is attached to the frame for sealing against the sash (3). The sash (3) has at least a sash rebate area (5), an overlap (6), a glazing gasket (7) attached to the overlap (6) for sealing glazing positioned in the sash rebate area (5), and an outer surface (9) running parallel to the glazing plane against which the stop seal (4) abuts. A sash cover plate (8) or a sash cover frame is arranged on the side of the overlap (6) on the sash (3) facing away from the sash rebate area (5), the sash cover plate (8) or the sash cover frame covering the overlap (6) and the outer surface (9) up to above a stop line (15) of the stop seal (4) on the sash (3).

Description

[0001] The invention relates to a composite frame for a window or a door with an outer facing frame made of metal profiles or facing shells connected to one another in the miter area and a base frame made of plastic profiles welded to one another in the miter area in combination with a stop seal. Technical area

[0002] Plastic has established itself in many markets as a material for frame profiles in the manufacture of windows and doors due to its efficient processing and product durability. Plastic profiles are generally mitered and welded together in the miter area to form a frame. At least for larger processors, the production of window and sash frames from plastic profiles usually takes place on complex production lines in which the individual work steps are carried out one after the other in a timed manner. To enable efficient production, no individual work step may take significantly longer than others, as otherwise the entire production line would have to operate correspondingly slower. Soft seals are often extruded together with the hard plastic frame profiles in a production line, making them captive and do not need to be subsequently attached to the frame.

[0003] The use of facings or frames made of metal profiles, especially aluminum profiles, is common practice for both wooden and plastic windows. Covering plastic profiles with aluminum facings or frames is primarily done for aesthetic reasons, although the aluminum facings or frames can be anodized, painted, or otherwise coated in various colors.

[0004] In this application, facing shells are defined as individual facing profiles which are individually placed on the legs of a base frame and connected to it - without being connected to each other in the corner or mitre area.

[0005] In this application, front frames are defined as prefabricated frames made of front profiles which are connected to one another to form a fixed front frame before being connected to or placed on a base frame in the corner or mitre area.

[0006] A frame that consists of a combination of plastic parts with metal parts is called a composite frame.

[0007] For sealing purposes, rebate seals are attached to the frame of doors and windows. When the window or door is closed, these seals rest against the sash, thus sealing the transition. State of the art

[0008] DE 102009001017 A1 and EP 2265790 B1 describe a stop seal that initially deforms softly when it hits the sash frame and reacts more rigidly with increasing compression. For this purpose, the seal initially has a protruding lip, which first comes into contact with the sash frame and reacts softly. When a defined distance is exceeded, a support cam in a hollow chamber provides greater resistance, so that the spring rate of the stop seal increases significantly upon reaching the support cam. In the described embodiment, the stop seal strikes against plastic. Since the plastic profiles of a window or door are extruded, they have no sharp edges.

[0009] EP 1744001 A1 discloses a composite consisting of a plastic frame with attached metal shells and a plastic sash profile with attached metal glazing beads. The groove for accommodating the rebate seal is located at the level of the lower edge of the metal glazing bead. This results in the rebate seal being regularly pressed against this lower metal edge. Since metal beads are typically not rounded at the edges, the pressure of the rebate seal against the metal bead leads to at least medium-term damage to the rebate seal.

[0010] EP 1878863 A2 shows a composite frame in which aluminum facings are glued to both the outer and sash frames made of hollow plastic profiles. This reduces the gap between the outer and sash frames, which must be sealed with a rebate seal. The rebate seal is a separate component that is inserted into a groove after extrusion.

[0011] DE 7803105 U1 discloses a plastic window frame with attached attachment elements. The plastic sash frame directly abuts the plastic frame via a seal. The attachment element attached to the sash frame ends above the attachment element attached to the frame, leaving a gap between the sash frame cladding and the frame cladding, through which the sash frame can be seen.

[0012] EP 4198244 A1 shows a plastic window frame with attached facings. The space between the plastic frame profiles and the facings is completely filled with elastic damping elements. The damping elements cover the entire outer surface of the frame and sash. These damping elements serve both as sound insulation and as a seal for the glazing and between the frame and sash.

[0013] EP 1178177 A2 shows wood-aluminum window frames with a central seal in the rebate area. To improve thermal insulation, the application proposes filling the aluminum shells with plastic foam.

[0014] DE 102009001017 A1 describes a stop seal with an integrated stop cam. When compressed, the seal initially has a soft spring rate; beyond a certain compression level, the cam is also compressed, thus increasing the spring rate.

[0015] DE 202004011008 U1 discloses a window with plastic profiles for the outer frame and sash frame. A metallic profile for cladding is mounted on the outer frame, which is fully functional on its own. Instead of a traditional glazing bead, a metallic profile is used for the sash frame, which both holds the glazing on one side and completely covers the sash frame on the side facing the exterior.

[0016] DE 19916218 A1 shows a wooden window frame with facing shells, in which a stop seal seals between the frame facing shell and the sash frame facing shell.

[0017] EP 1878863 A2 discloses a composite window construction consisting of a plastic frame and sash in conjunction with attached facing panels. These facing panels completely cover both the frame and the sash on the side facing the environment. The stop seal attached to the frame for sealing the sash is thus compressed earlier and to a greater extent overall when the window is closed after the facing panel is placed on the sash than with a window without facing panels.

[0018] A general problem with attached metal shells and frames is that, if the geometry of the plastic parts remains unchanged, the stop seal is either compressed significantly more by the attached metal profile or must be replaced with a different stop seal. A different stop seal requires intervention in the coextrusion process, in which the hard PVC hollow chamber profiles, including the soft seals, are extruded together. Task

[0019] The object of the present invention is therefore to provide a generic composite frame for a window or a door with a rebate seal, which can be used with and without a sash frame facing shell or sash frame facing frame without making changes to the rebate seal.

[0020] Another task is to create a composite frame that prevents damage to the stop seal caused by sharp edges on metal parts. Description of the invention

[0021] The invention solves this problem by a composite frame for a window or a door with a stop seal according to independent claim 1.

[0022] A composite frame according to the invention consists of a frame and a sash, which are combined in a window or door.

[0023] The frame and sash are preferably made of well-known extruded PVC hollow profiles.

[0024] The sash has at least one sash rebate area, one sash rebate, a glass seal attached to the sash rebate for sealing a glazing positioned in the sash rebate area, and an outer side of the sash rebate facing away from the sash rebate area that runs at least approximately parallel to the glazing plane. The outer side usually runs vertically, but can also run at a slight angle to the vertical. A stop seal is attached to the outer side of the sash for sealing purposes.

[0025] This rebate seal serves to seal the transition from the frame to the sash when the window or door is closed. The rebate seal rests against the outside of the sash when the window or door is closed. Depending on the design, additional seals can be used to seal the transition from the frame to the sash.

[0026] According to the invention, at least one sash frame facing shell or one sash frame facing frame is arranged on the outside of the sash frame. The at least one sash frame facing shell or the sash frame facing frame covers the sash overlap and partially the outside up to above a stop line of the stop seal on the sash frame and also ends above this stop line. The stop line is the line that results when the stop seal first touches the outside of the sash frame. When the window or door is closed, this line is continuously touched with the turning movement. In the sense of the invention, the term stop line deliberately refers to a line. When the window or door is closed further, a stop surface is created which serves to seal between the outer frame and the sash frame.

[0027] This offers the advantage that the rebate seal for a window or door does not need to be modified when a sash frame facing is subsequently installed. In cases where the sash frame facing or the sash frame facing extends further toward the rebate area of the sash frame, the unaltered rebate seal would be compressed more, the force required to close the door or window would be greater, and the locking effect would be greater.

[0028] Another advantage is that when the door or window is closed, the seal first contacts the sash frame directly, rather than the potentially sharp-edged sash frame facing or sash frame facing. This reduces stress on the seal.

[0029] The rebate seal partially covers the sash frame facing or the sash frame facing frame, parallel to the glazing plane. This prevents the base of the sash frame from being visible when the window is closed.

[0030] The sash frame facing has a thinner wall thickness in the area covered by the stop seal than in the area of the sash frame overlap and preferably tapers towards the stop line.

[0031] This means that the frame can be used for several applications with a single stop seal: As a clad or unclad frame in conjunction with an unclad sash frame, as a clad or unclad frame in conjunction with a clad sash frame and as a clad or unclad frame in conjunction with fixed glazing.

[0032] Advantageous embodiments result from the features of the dependent claims.

[0033] A conventional frame has at least one frame rebate area and one frame overlap. Preferably, at least one frame facing shell or one frame facing frame is arranged on the side of the frame overlap facing away from the frame rebate area.

[0034] It is particularly advantageous if at least one frame facing shell or frame facing frame partially overlaps the sash facing shell or sash facing frame parallel to the glazing plane. This creates a particularly harmonious visual impression.

[0035] Advantageously, the rebate seal forms a cavity with the frame and has a protruding sealing slat on the side facing away from the frame, which extends diagonally away from the frame overlap toward the sash frame, toward the frame rebate area. Such a seal allows for a progressive increase in the spring rate of this seal.

[0036] Advantageously, the sealing slat touches the stop line, which is located next to the sash frame facing shell or the sash frame facing frame.

[0037] If the stop seal has a support cam in the cavity, the spring rate increases when the seal is compressed when it reaches the support cam.

[0038] A method according to the invention for closing a composite frame according to the invention provides that, as the sash approaches the frame, the stop seal first meets the stop line on the sash and then elastically deforms as it approaches further. As the sash approaches the frame further, the stop seal touches the sash frame facing. Short description of the drawing

[0039] The invention is explained in more detail below using an exemplary embodiment and the drawings. In the drawings: Fig. 1 shows a composite frame according to the invention during the closing process when the stop seal touches the sash frame for the first time, Fig. 2 shows the same composite frame according to the invention in the closed state, Fig. 3 shows a variant of the composite frame according to the invention in the closed state and Fig. 4 shows an enlargement of the area around the stop seal from Figure 1 .

[0040] Identical reference symbols in different figures have the same meaning. Not all reference symbols are shown in all figures.

[0041] Figure 1shows a composite frame 1 consisting of a cover frame 2 and a sash frame 3 of a window. The cover frame 2 and sash frame 3 each consist of extruded PVC hollow chamber profiles which are mitered and welded together in the miter area. The sash frame 3 has the usual structure with a sash frame rebate area 5, a sash frame overlap 6, a glass seal 7 fastened to the sash frame overlap 6 for sealing a glazing (not shown) positioned in the sash frame rebate area 5, and an outer side 9 running parallel to the glazing plane on the side of the sash frame rebate area 5 facing away from the sash frame rebate area 5. A glazing is inserted into the sash frame rebate area 5 and fixed in place by means of a glazing strip (not shown) with a seal.

[0042] The frame 2 also has the usual structure with a frame rebate area 10 and a frame overlap 11. A soft rebate seal 4 is attached to the frame 2 at the edge of the frame overlap 11; in practice, this is usually coextruded together with the PVC hollow profile. The rebate seal 4 serves to seal the frame 2 to the outer side 9 of the sash 3.

[0043] The stop seal 4 forms a cavity 13 with the frame 2. On the side facing away from the frame 2, the stop seal 4 has a protruding sealing slat 14, which extends away from the frame overlap 11 in the direction of the sash 3 diagonally downwards to the right at an angle of approximately 25° to the vertical in the direction of the frame rebate area 10. The stop seal 4 also has a support cam 16 in the cavity 13 on the side facing away from the sealing slat 14.

[0044] A sash frame facing 8 is arranged on the outer side 9 of the sash frame 3; it extends from the upper edge, where the glass seal 7 is located, and extends downwards to the outer side 9. The sash frame facing 8 ends on the outer side 9 slightly above the lower end. Thus, the sash frame facing 8 completely covers the sash frame overlap 6 and partially covers the outer side 9 up to above the lower edge of the outer side 9. The terms "below," "above," etc., refer here to the representation in the figures; these show the position of the respective lower profile of a window or door. Since a frame usually contains four profiles in different positions (bottom, top, left, and right), the aforementioned location information such as "bottom" changes depending on the installation position.

[0045] In a similar manner, a frame facing shell 12 is arranged on the side of the frame overlap 11 on the frame 2 facing away from the frame rebate area 10.

[0046] In the present case, the connection of the facing shells 8, 12 with the cover frame 2 and sash frame 3 is made by means of clips and grooves, which are described in detail in DE 102023102772.7.

[0047] If the grooves for attaching the clips are ignored, the outer side of the frame facing shell 12 has a virtually constant wall thickness. In contrast, the sash frame facing shell 8 has a thinner wall thickness at the end facing away from the glass seal 7 than in the area of the sash overlap 6 and tapers towards the stop line 15, so that the lower end of the sash frame facing shell 8 has a smaller wall thickness than in the area near the glass seal 7. In the present case, the sash frame facing shell 8 forms a cavity with the sash frame 3, in which the groove and the clips are located. Below this cavity, the sash frame facing shell 8 rests against the sash frame 3. Below this contact line, the sash frame facing shell 8 becomes thinner towards the bottom.

[0048] The Figures 1 and 4show a state during the closing of the window, in which the stop seal 4 first strikes the sash frame 3. The sealing lip 14 of the stop seal 4 lies on the underside of the outer side 9 and forms the stop line 15 on the sash frame 3. Otherwise, there is a wedge-shaped gap between the stop seal 4 and the sash frame 3. The stop seal 4 partially covers the sash frame facing shell 8 parallel to the glazing plane, touches it in the Figures 1 and 4 However, this is not the case. The sash frame facing shell 8 ends just above the stop line 15. The frame facing shell 12 also partially overlaps the sash frame facing shell 8, parallel to the glazing plane.

[0049] If the composite frame is closed, then - as described in the Figures 1 and 4 shown - when approaching the sash frame 3 to the frame 2, first the stop seal 4 the stop line 15 on the sash frame 3. As the sash frame 3 approaches the frame 2, the rebate seal 4 deforms elastically. The inclined sealing slat 14 is continuously pressed into a vertical position, and the upper part of the rebate seal 4 touches the sash frame facing 8. .

[0050] Figure 2 shows the closed window, with the stop seal 4—contrary to reality—shown undeformed. However, it is clear that in this position, the stop seal 4 is in contact with the thinned area of the sash frame facing 8.

[0051] Figure 3 differs from Figure 2 by the shortened frame facing shell 12, which does not extend to the base of the frame profile. This type of frame facing shell 12 is particularly suitable for combination with a window sill (not shown).

[0052] Figure 4shows as a detail the stop of the sealing lamella 14 of the stop seal 4 at the stop line 15. It is clear that the thinned area of the sash frame facing shell 8 does not significantly change the function of the stop seal 4 compared to a frame without sash frame facing shell 8.

[0053] The invention is not limited to the embodiment.

Claims

1. Composite frame (1) comprising a blind frame (2) and casement frame (3) of a window and / or a door, wherein the casement frame (3) has at least a casement frame rebate region (5), a casement frame protrusion (6), a glass seal (7) which is secured to the casement frame protrusion (6) for sealing a glazing which is positioned in the casement frame rebate region (5), and an outer side (9) which extends at least substantially parallel with the glazing plane at the side of the casement frame protrusion (6) facing away from the casement frame rebate region (5), having a stop seal (4) which is secured to the blind frame (2) for sealing at the outer side (9) of the casement frame (3), at least one casement frame facing shell (8) or a casement frame auxiliary frame is arranged at the outer side (9) on the casement frame (3), wherein the at least one casement frame facing shell (8) or the casement frame auxiliary frame covers the casement frame protrusion (6) and only partially the outer side (9) up to a location above a stop line (15) of the stop seal (4) on the casement frame (3), wherein the stop line (15) is produced when the stop seal (4), when the casement frame (3) moves closer to the blind frame (2), first touches the outer side (9) of the casement frame (3), and wherein during further closing a stop face is produced so that the stop seal (4) partially covers parallel with the glazing plane the casement frame facing shell (8) or the casement frame auxiliary frame, and the casement frame auxiliary frame (8) has, in the region which is covered by the stop seal (4), a thinner wall thickness than in the region of the casement frame protrusion (6) and preferably tapers in the direction of the stop line (15).

2. Composite frame (1) according to Claim 1, characterized in that the blind frame (2) has at least one blind frame rebate region (10) and a blind frame protrusion (11), wherein at least one blind frame facing shell (12) or a blind frame auxiliary frame is arranged on the blind frame (2) at the side of the blind frame protrusion (11) facing away from the blind frame rebate region (10).

3. Composite frame (1) according to Claim 2, characterized in that the at least one blind frame facing shell (12) or the blind frame auxiliary frame partially covers the casement frame facing shell (8) or the casement frame auxiliary frame parallel with the glazing plane.

4. Composite frame (1) according to any one of Claims 1 to 3, characterized in that the stop seal (4) forms with the blind frame (2) a hollow space (13) and at the side facing away from the blind frame (2) has a protruding sealing plate (14) which extends away from the blind frame protrusion (11) in the direction of the casement frame (3) obliquely in the direction of the blind frame rebate region (10).

5. Composite frame (1) according to Claim 4, characterized in that the sealing plate (14) touches the stop line (15).

6. Composite frame (1) according to either Claim 4 or Claim 5, characterized in that the stop seal (4) has a support cam (16) in the hollow space (13).

7. Method for closing a composite frame (1) according to any one of Claims 1 to 6, characterized in that, when the casement frame (3) approaches the blind frame (2), the stop seal (4) first strikes the stop line (15) on the casement frame and becomes resiliently deformed when moving closer.

8. Method for closing a composite frame (1) according to Claim 7, characterized in that, when the casement frame (3) approaches the blind frame (2), the stop seal (4) touches the casement frame facing shell (8).

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