Frame coupling

Abstract

A window or door has a frame (1) and a corresponding sash (2), wherein the frame (1) has a frame overlap (3) and the sash (2) has a sash overlap (4). When the window is closed, the frame (1) with the frame overlap (3) partially covers an outer sash surface (5) of the sash (2) that is at least largely parallel to the glazing plane, and the sash (2) with the sash overlap (4) also partially covers an inner sash surface (6) that is at least largely parallel to the glazing plane. The frame (1) has a rebate base (7) and a rebate area (8) above it. According to the invention, a rebate insulation (9) is arranged in the rebate area (8) of the frame (1), which extends from the rebate base (7) to the sash (2).

Description

[0001] The invention relates to additional insulation of a window or door frame. Technical field

[0002] To reduce heat loss from a building, windows and doors must also be insulated. Multiple panes of glass minimize heat loss through the glazing. With PVC hollow chamber profiles for window or door frames, the hollow chambers ensure low heat flow. Rebate and / or center seals prevent airflow between the sash and frame. State of the art

[0003] To further increase thermal insulation, WO 97 / 22779 provides for the placement of insulating material in the hollow chambers.

[0004] DE 29701026 U1 describes an aluminum frame for doors or windows, each with an aluminum part on the inside and outside, and insulating spacers in between. Instead of a conventional center gasket, a profile body made of foamed plastic is mounted on the insulating spacer. Similar solutions for aluminum frames for doors or windows are shown in DE 102016125924 A1 and DE 102016125334A1.

[0005] DE 102007000764 A1 shows a PVC frame with an attached aluminum shell. Foam insulation is arranged between the aluminum shell and the window pane.

[0006] DE 102004015064 A1 shows a PVC frame with a hollow chamber PVC insert including a central seal, which is snapped into the frame.

[0007] DE 102013100715 B3 discloses a window in which a combination of a rebate insulation with a combined central seal is positioned in the rebate area of ​​the frame.

[0008] DE 202010008921 U1 also shows a window in which a one-piece combination of rebate insulation and a central gasket is positioned in the rebate area of ​​the frame. The different areas are made of different materials.

[0009] DE 7832902 U1 describes a wing rebate seal with a foamed core and an elastic, unfoamed outer skin.

[0010] EP 865559 B1 shows a window in which both the frame and sash are filled with a core of rigid polyurethane integral foam. A frame rebate shell defines the filled frame at the rebate area. An elastic center gasket is positioned on the frame rebate shell. Alternatively, the frame rebate shell and center gasket can be manufactured as a single component.

[0011] The solutions known from the state of the art are either only usable when installing a window, require special frames from the outset, or can only be retrofitted with great effort. Task

[0012] The object of the present invention is therefore to create an efficient, retrofittable improvement to the thermal insulation of a window or door. Description of the invention

[0013] The problem is solved by a window or door with a frame and a corresponding sash frame having the features of the independent claim.

[0014] In a window or door according to the invention, the frame has a frame overlap and the sash has a sash overlap, wherein, in the closed state of the window, the frame with the frame overlap partially or completely covers an outer surface of the sash that is at least largely parallel to the glazing plane, and the sash with the sash overlap partially or completely covers an inner surface of the frame that is at least largely parallel to the glazing plane. Furthermore, the frame has a rebate base and a rebate area above it, and preferably a hardware groove. The sash has an inner underside that, in the closed state of the window or door, faces the rebate base. Such frames and sashes have been known for a long time.

[0015] According to the invention, a rebate insulation is arranged in the rebate area of ​​the frame, extending from the rebate base to the sash frame. If a central gasket is present, the rebate insulation is arranged next to the central gasket, and if the window frame does not have a central gasket, the rebate insulation is arranged at a distance from the frame overlap. This latter distance allows water to accumulate between the rebate insulation and the frame overlap, which can then be drained away via appropriate channels. The distance should be at least 5 mm. The distance should extend at most to the lowest point in the rebate area of ​​the sash.

[0016] Alternatively, the rebate insulation is arranged on the inside underside of the sash frame, with the rebate insulation extending from the inside underside of the sash frame to the frame.

[0017] While rebate and center seals primarily prevent water ingress and airflow from the outside to the inside and vice versa, rebate insulation serves to reduce heat flow. This is achieved by using a poorly thermally conductive rebate insulation material that reduces heat flow in the rebate area.

[0018] Advantageous configurations result from the characteristics of the dependent claims.

[0019] It is therefore advantageous if the rebate insulation extends over at least two-thirds of the distance from the rebate base to the sash frame. If the rebate insulation were to extend over the entire distance, friction could occur when opening and closing. With the aforementioned extension, however, a significant portion of the vertical cross-section is already covered.

[0020] If the rebate insulation is mounted on the sash frame, it is advantageous if it extends from the inside underside of the sash frame to a height level above the hardware groove, so that the window or door can be opened and closed without compression of the rebate insulation.

[0021] It is optionally possible to install at least one rebate seal on both the sash and the frame.

[0022] If the rebate insulation extends over at least 1 / 4 of the rebate base, heat losses through the rebate base are reduced on the one hand, and on the other hand, a lot of air is displaced from the rebate area.

[0023] Optionally, the tongue and groove insulation has cavities, which further increases thermal insulation while simultaneously reducing material costs.

[0024] In an advantageous design, the tongue and groove insulation rests against a central sealing bar when one is present. This allows for easy and accurate positioning during installation. Furthermore, air cannot flow around the tongue and groove insulation in this area.

[0025] In a further advantageous embodiment, the rebate insulation is positioned at a distance from the frame overlap. This is a necessary consequence of the presence of a center seal. Without a center seal, the rebate seal could extend to the frame overlap; however, this would impair drainage to the outside and would require drainage tubes.

[0026] The rebate insulation preferably consists of polyamide-based, glass fiber reinforced material, ethylene propylene diene rubber, a combination of polyurethane, polypropylene and / or polycarbonate and / or soft PVC.

[0027] Polyamide-based, glass fiber-reinforced insulating profiles, also known as low-lambda polyamide (PA), are already used as connecting elements in aluminum window frames, where the two outer aluminum profiles are joined by a thermally insulating intermediate body. The thermal conductivity is approximately 0.21 W / (mK).

[0028] Ethylene propylene diene rubbers (EPDM) are terpolymers made of ethylene, propylene and a diene.

[0029] A combination of polyurethane, polypropylene and / or polycarbonate is also particularly suitable as a material for seam insulation.

[0030] It is also possible to use soft polyvinyl chloride (PVC).

[0031] Optionally, the folded edge insulation is provided with a polyethylene sheath.

[0032] The combination of the aforementioned insulating materials with the aforementioned cladding represents a particularly effective thermal insulation.

[0033] The rebate insulation could also be made from soft PVC, preferably co-extruded onto the frame and / or sash.

[0034] The rebate insulation can optionally be glued to the frame or the inner underside of the sash. Adhesion is preferably achieved using a double-sided adhesive strip, an adhesive strip bonded to the insulation, or a viscous adhesive. This simplifies subsequent installation, as neither clip grooves nor screws are required for fastening. Brief description of the drawing

[0035] The invention is explained in more detail below with reference to exemplary embodiments and the drawings. The drawings show: Fig. 1 shows a section through a window frame with a center seal and rebate insulation, and Fig. 2 shows a section through a window frame without a center seal and with rebate insulation.

[0036] Figure 1Figure 1 shows a cross-section of a window or door with a frame 1 and a corresponding sash 2, which in this embodiment are made of extruded PVC hollow chamber profiles. The hollow chambers are visible in the frame 1. The sash 2 is shown only in outline, but has essentially the same construction.

[0037] The frame 1 has a frame overlap 3, the sash frame 2 has a sash overlap 4. These are coordinated with each other in such a way that in the Figure 1In the closed state of the window or door shown, the frame 1 with the frame overlap 3 partially covers an outer sash frame surface 5 of the sash 2 that is parallel to the glazing plane, and the sash 2 with the frame overlap 4 also partially covers an inner sash frame surface 6 that is parallel to the glazing plane. A stop seal 13 is located between the frame overlap 3 of the frame 1 and the outer sash frame surface 5.

[0038] The frame 1 has a rebate base 7 and a rebate area 8 located above the rebate base 7. Furthermore, a central sealing bar 11 is located in the rebate area 8, to which a central seal 12 is attached. The central seal 12 seals from the frame 1 to the sash frame 2 and prevents airflow there.

[0039] In the rebate area 8 of the frame 1, a rebate insulation 9 is glued directly next to the center gasket 11 and the center gasket 12. The rebate insulation 9 extends from the rebate base 7 towards the sash frame 2 over approximately 85% of the distance, so that the rebate insulation 9 does not abut the sash frame 2, even taking tolerances into account. At the same time, the rebate insulation 9 is sufficiently high and also long enough along the rebate base 7 towards a hardware groove 14 that a substantial portion of the rebate area 8 is filled by the rebate insulation 9.

[0040] The tongue and groove insulation 9 has cavities 10, so that the thermal insulation effect is increased and material is saved at the same time.

[0041] The tongue and groove insulation 9 consists of polyamide-based, glass fiber-reinforced material, also known as low-lambda polyamide (PA). The tongue and groove insulation 9 has a sheath, preferably made of polyethylene.

[0042] Alternatively, the tongue and groove insulation 9 can consist of ethylene propylene diene rubber and / or a combination of polyurethane, polypropylene and / or polycarbonate.

[0043] The folded edge insulation can also be made of soft PVC and preferably co-extruded.

[0044] The rebate insulation 9 can be firmly connected to the center seal 12 or the center seal beam 11.

[0045] Figure 2 Figure 1 shows a section through a window frame without a center gasket and with rebate insulation 9, where the sash frame 2 is also shown as a hollow chamber profile. The sash frame 2 has a groove 16 and an inner sash frame underside 15 on the side facing the outer sash frame 5. The inner sash frame underside 15 is positioned opposite the rebate base 7 when the window is closed.

[0046] The rebate insulation 9 extends in the rebate base 7 from below the inner bottom edge 15 of the sash frame to near the frame overlap 3. Space remains between the insulation and the frame overlap 3 to ensure that the drainage of the frame 1 is not impaired. This space is equivalent to a gap, which in this case results from the fact that the rebate insulation 9 is arranged on the horizontal rebate base 7, while on the side facing the frame overlap 3, the rebate area 8 slopes down to its lowest point, allowing moisture to accumulate there and be drained into the surrounding area through standard drainage holes.

[0047] Not shown is the variant according to the invention in which the rebate insulation 9 is attached to the inner underside 15 of the sash frame and projects towards the rebate base 7. In order to allow unrestricted opening and closing of the window or door, it should only extend towards the rebate base 7 up to a height level above the hardware groove 14.

[0048] Optionally, the rebate insulation 9 can be designed in multiple parts, with one part attached to the frame 1 and another part to the sash frame 2. legend

[0049] 1 Frame 2 Sash 3 Frame overlap 4 Sash overlap 5 Sash outside 6 Frame inside 7 Rebate base 8 Rebate area 9 Rebate insulation 10 Cavity 11 Center gasket 12 Center gasket 13 Stop gasket 14 Hardware groove 15 Sash bottom inside 16 Groove

Claims

1. A window or door comprising a frame (1) and a corresponding sash frame (2), wherein the frame (1) has a frame overlap (3) and the sash frame (2) has a sash overlap (4), wherein, in the closed state of the window or door, the frame (1) with the frame overlap (3) partially or completely covers an outer sash frame surface (5) of the sash frame (2) which is at least largely parallel to the glazing plane, and the sash frame (2) with the sash overlap (4) partially or completely covers an inner frame surface (6) which is at least largely parallel to the glazing plane, wherein the frame (1) has a rebate base (7) and a rebate area (8) located above it, and preferably a hardware groove (14), and wherein the sash frame (2) has an inner sash underside (15) which, in the closed state of the window or door, is arranged opposite the rebate base (7), characterized by the fact thata rebate insulation (9) is arranged in the rebate area (8) of the frame (1), wherein the rebate insulation (9) extends from the rebate base (7) to the sash frame (2), wherein, in the presence of a central gasket shank (11), the rebate insulation (9) is arranged next to the central gasket shank (11), and in the case of a window frame without a central gasket, the rebate insulation (9) is arranged spaced apart from the frame overlap (3), and / or a rebate insulation (9) is arranged on the inner underside (15) of the sash frame, wherein the rebate insulation (9) extends from the inner underside (15) of the sash frame to the frame (2).

2. Window or door according to claim 1, characterized by the fact that the rebate insulation (9) extends over at least 2 / 3 of the distance from the rebate base (7) to the sash frame (2) or from the inner underside of the sash frame (15) to a height level above the hardware groove (14).

3. Window or door according to claim 1 or 2, characterized by the fact thatthe rebate insulation (9) extends over a length of at least 1 / 4 of the rebate base (7).

4. Window or door according to one of claims 1 to 3, characterized by the fact that the fold insulation (9) has cavities (10).

5. Window or door according to one of claims 1 to 4, characterized by the fact that the rebate insulation (9) rests against the central sealing bar (11) if one is present.

6. Window or door according to one of claims 1 to 5, characterized by the fact that the rebate insulation (9) is arranged at a distance from the frame overlap (3).

7. Window or door according to one of claims 1 to 6, characterized by the fact that the rebate insulation (9) consists of polyamide-based, glass fiber reinforced material, ethylene propylene diene rubber, a combination of polyurethane, polypropylene and / or polycarbonate and / or soft PVC.

8. Window or door according to any one of claims 1 to 7, characterized by the fact that the fold insulation (9) has a polyethylene jacket.

9. Window or door according to any one of claims 1 to 8, characterized by the fact that the rebate insulation (9) is glued to the frame (1) or the inner underside of the sash frame (15).

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