DE20111167U1 - insulated windows - Google Patents

Description

1128 G2

Insulated glass windows

The invention relates to an insulating glass window, in particular a wooden or plastic window, according to the preamble of claim 1.

Insulated glass windows of this type usually have at least one sash with a sash frame in which one or - in the case of mullioned windows - several insulating glass panes are inserted. The sash is arranged on the frame, also known as the window frame, so that it can be pivoted and/or tilted.

As is well known, thermal insulation plays a major role in window construction. A particularly problematic area is the transition area between the frame and the sash frame, as well as the area where the insulating glass pane is connected to the sash frame.

Figure 8 shows a cross-section of the lower horizontal segment of a frame and sash of a conventional wooden window, with the closed state

of the window. This known window has a frame 100 with an aluminum rain protection rail 101 attached to it. The vertical surface 102 located on the inside of the frame 100 serves as a stop surface for a protruding inner sash frieze 103 of a sash frame 104. The sealing between the sash frame 104 and the frame 100 is achieved by means of a sash center seal 105, which rests against the aluminum rain protection rail 101 when the window is closed. Furthermore, this known window has an outer sash frieze 107 protruding in the direction of the insulating glass pane 106, which, together with a glazing bead 108, which is subsequently attached to the sash frame 104, fixes the insulating glass pane 106. The glass recess of the insulating glass pane 106, i.e. the degree of overlap between the outer sash frieze 107 or glazing bead 108 and the insulating glass pane 106, is usually only about 14 to 18 mm.

In order to improve the sealing between the frame and the sash, it is also known to provide several seals on the sash and/or frame instead of one seal, which come into contact with different rebate surfaces.

The problem with these known windows is that thermal bridges are created, particularly in the area of the pane edge, i.e. in the area of the surrounding edge area of the insulating glass pane 106, which lead to undesirable heat loss and the formation of condensation. The edge area of the insulating glass pane 106 is particularly problematic because the metallic end profiles of the insulating glass pane 106 are located in this area.

which have a high thermal conductivity. Another disadvantage is that in the known windows the four frame segments, i.e. the two horizontal and the two vertical frame segments, have a different profile, which increases the manufacturing costs.

The invention is therefore based on the object of creating an insulating glass window of the type mentioned at the outset, which prevents thermal bridges in the connection area between the insulating glass pane, sash frame and frame and is simple and cost-effective to manufacture.

This object is achieved according to the invention by an insulating glass window with the features of claim 1. Advantageous embodiments of the invention are described in the further claims.

In the insulating glass window according to the invention, the frame on the outside of the window has a surrounding frame overlap frieze arranged parallel to the plane of the pane and protruding beyond the edge of the pane.

Due to the frame overlap frieze according to the invention, the frame has a far protruding projection that extends beyond the edge area of the insulating glass pane. This means that on the outside of the window, next to the edge area of the insulating glass pane, in which the metallic, front-side end profile of the insulating glass pane is located, there is also the frame overlap frieze in addition to the outer sash frieze, so that there are two thermal insulation layers lying next to each other. Thermal bridges in this

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Area are thereby significantly reduced or avoided.

Conveniently, the frame overlap frieze is made of the same material, in particular wood or plastic, as the rest of the frame and has a thickness of at least 18 mm, preferably 22 or 32 mm.

Particularly good thermal insulation properties can be achieved if the frame overlap frieze is designed as a stop for the sash frame and has a circumferential seal against which the sash frame rests with its outside.

Advantageously, the frame has the same profile all around, at least in the stop area. This means that uniform milling or forming tools can be used, which simplifies production and reduces manufacturing costs. This advantage is particularly pronounced if the sash frame also has the same profile all around, at least in the stop area.

The casement frame is expediently made up of a casement core frame, an inner casement frieze arranged with an overhang to the casement core frame and an outer casement frieze arranged with an overhang to the casement core frame, which can be screwed to the casement core frame. The inner casement frieze can be glued to the casement core frame or made as a single piece. In this way, when manufacturing the casement, it is possible to first insert the insulating glass pane into the casement frame and then to assemble the outer casement frieze as a single-piece frame.

to be screwed to the sash core frame. This enables simple and high-quality production.

It is advantageous to have glazing beads with the same profile in the inner and outer sash friezes, the thickness of which should preferably be at least the same as that of the sash friezes. The glazing beads increase the glass projection accordingly and form effective additional heat barriers. In addition, the identical design of the glazing beads gives the window an attractive appearance.

It is advisable for the glass to be at least 17 mm deep in the casement frame, preferably 30 to 45 mm. This ensures that the relatively strong, heat-conductive metallized edge area of the insulating glass pane sits relatively deep in the casement frame and is covered by both the inner and outer casement frieze and the outer frame frieze.

According to an advantageous embodiment, the water channel consists of a milled or formed recess in the window frame, which is covered by the outer sash frieze when the window is closed. This eliminates the need to install a separate aluminum rain protection channel. Furthermore, there is no thermal bridge caused by an aluminum rain protection channel. Since, according to an advantageous embodiment, all segments of the window frame have the same profile, there is also a corresponding channel in the two vertical and horizontal upper frame segments, which serves as a vortex channel.

With a wooden window, on the outside of the window

A wooden glass retaining strip is provided on the lower sash frame, which is covered by a metal or plastic cover strip that protrudes outwards and has a retaining bar that spans the glass retaining strip on the outer face. The cover strip can be securely attached to this retaining bar - possibly in addition to a clip holder on the top of the glass retaining strip. The cover strip protects the wooden glass retaining strip, so that its service life is significantly increased and repeated painting is no longer necessary.

Alternatively, the cover strip can also have a hook-shaped bent end area in its end area facing the insulating glass pane, which engages in a retaining groove provided on the glass retaining strip. This design enables the cover strip to be held very easily and securely on the outer glass retaining strip.

The invention is explained in more detail below using the drawings as examples. They show:

Figure 1:

a vertical section through the lower and upper segments of the frame and sash with an inserted, shortened insulating glass pane;

Figure 2:

a horizontal section through a passive leaf and a moving leaf in the area of the impact/faceplate;

Figure 3:

a horizontal section through an inventive

window in accordance with the requirements with mullion;

Figure 4:

a vertical section through a window frame with fixed glazing;

Figure 5:

an alternative embodiment of an insulating glass window with an external glazing bead with weather strip;

Figure 6:

an alternative design of the insulating glass window with a different seal on the inner sash frieze;

Figure 7:

an alternative embodiment of a cover strip; and

Figure 8:

a frame/sash frame profile according to the state of the art.

Figure 1 shows a window with a wooden frame 1 and a wooden sash frame 2, in which an insulating glass pane 3 with triple glazing is inserted. An inner window sill 4 is attached to the frame 1 on the inside of the window. On the opposite outside, a window sheet 5 is screwed to the frame 1, with a conventional sealing profile ensuring a tight connection to the frame 1.

The frame 1 consists of a frame core 6, which can be constructed in multiple layers, and an outer frame frieze 7 glued to the frame core 6. In the embodiment shown in Figure 1, the thickness of the frame frieze is 32 mm. The thickness of the

The thickness of the frame frieze 7 depends on the total thickness of the window and can vary accordingly, for example it can be 22 mm. The frame frieze 7 also projects significantly beyond the frame core 6 in the vertical plane in the direction of the insulating glass pane 3. In the embodiment shown in Figure 1, the projection a is approximately 50 to 52 mm.

It can also be seen that a water channel 8 is milled into the frame core 6 adjacent to the frame frieze 7. The water channel 8 is limited by a web area 9 protruding in the direction of the insulating glass pane 3, which has a vertical stop surface 10 on the inside for a central seal 11 attached to the sash frame 2. From the water channel 8, water drainage holes 12 extend diagonally downwards and outwards through the outer frame frieze 7.

The four segments of the frame 1, ie the lower, upper, left and right frame segments, have the same profile, with only an external, horizontally running milled recess 13 being additionally provided in the lower frame segment, into which the window sheet 5 projects.
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The sash frame 2 consists of a sash core frame 14, which is located in the plane of the insulating glass pane 3, as well as an inner sash frieze 15 and an outer sash frieze 16. The inner sash frieze 15 is glued to the sash core frame 14. The outer sash frieze 16 can be screwed onto the sash core frame 14 from the opposite side using screws (not shown in detail). The sash friezes 15, 16 are on

the side of the insulating glass pane 3 protrudes the same distance over the sash core frame 14, so that a groove-shaped depression is formed between them, into which the insulating glass pane 3 projects. The sash friezes 15, 16 thus cover the edge areas of the insulating glass pane 3 on both sides. A glass retaining strip 17, 18 is placed on both the inner sash frieze 15 and the outer sash frieze 16 and glued to it. The glass retaining strips 17, 18 have the same profile and are thicker than the sash friezes 15, 16, so that they protrude laterally over them. It can be seen that the glass projection b, i.e. the overlap of the glass retaining strips 17, 18 including the sash friezes 15, 16 on the one hand and the insulating glass pane 3 on the other hand, is considerably higher than in the prior art according to Figure 8. In the embodiment shown in Figure 1, the glass recess b is approximately 35 mm. Other glass recesses between 17 and 50 mm are possible.

Furthermore, it can be seen from Figure 1 that the projection a of the outer frame frieze 7 is so high that the frame frieze 7 protrudes over the pane edge 19, so that an overlap c is produced in the vertical direction. In the embodiment shown, the overlap c is approximately 5 to 7 mm. In this way, in addition to the outer sash frieze 16, the frame frieze 7 is also present on the outside of the window in the area of the pane edge 19 in order to form an effective heat transfer barrier to the pane edge 19. Heat losses and the formation of condensation in the edge area of the pane edge 19 can thus be significantly reduced.

The vertical, inner surface of the frame frieze 7

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serves as a stop surface for the outer sash frieze 16. Additional sealing in this area is provided by a frame overlap seal 21, against which the outer sash frieze 16 rests when the window is closed. Further sealing is achieved by a sash overlap seal 22, which is fixed in the inner sash frieze 15 and rests against a vertical contact surface 23 of the frame core 6 when the window is closed.
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Furthermore, Figure 1 also shows a fitting groove 24, which is provided in the sash core frame 14 in a known manner.

The four segments of the sash frame 2, i.e. the lower, upper, left and right sash frame segments, have the same profile, which allows for very simple manufacturing.

In order to protect the outer glass retaining strip 18 from weathering, it is covered by a cover strip 25 made of metal, for example aluminum, or plastic. The cover strip 25 has an L-shaped section 26 that protrudes outwards over the glass retaining strip 18. In the end area near the pane, the cover strip 25 is clipped onto holding elements 27 that are screwed onto the top of the glass retaining strip 18. Between this holding area and the outer end area, a holding web 28 extends downwards from the L-shaped section 26, which rests against the outer side surface of the glass retaining strip 18 and can be screwed to it there. The shape of the holding web 28 is expediently adapted to the outer contour of the glass retaining strip 18.

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which is round in the embodiment of Figure 1, but can also have other shapes, for example a square shape.

Figure 7 shows an alternative embodiment of such a cover strip in the raised and assembled position. This cover strip 25' has a hook-shaped bent end region 29 in its end region facing the insulating glass pane 3, which engages in a retaining groove 30 provided on the glass retaining strip 18. For assembly, the cover strip 24' can thus be inserted into the retaining groove 30 in a raised position and then pivoted downwards until the retaining web 28 rests on the glass retaining strip 18.

The insulating glass pane 3 shown in Figure 1 is installed in the sash frame 2 in such a way that the insulating glass pane 3 is first inserted into the sash core frame 14 with the glued-on inner sash frieze 15, with the lateral sealing being achieved there by means of an inner glass seal 31 and a sealing tape. The outer sash frieze 16, to which the outer glass retaining strip 18 is glued, is then screwed to the sash core frame 14. The sash frame 2 is therefore a double-shell frame. The lateral sealing between the insulating glass pane 3 and the outer sash frieze 16 or glass retaining strip 18 is achieved by means of an outer glass seal 32 and a corresponding sealing tape.

Figure 2 shows a horizontal section of a window with a fixed sash 33 and a moving sash 34. As can be seen, the fixed sash 33 has an outer strike bar 35 which is glued to the outer sash frieze 16.

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It is also important here that there is a significant glass recess b, which corresponds to that of Figure 1. Furthermore, the strike bar 35 has a width such that an overlap c with the insulating glass pane 3 is again obtained, which corresponds to the overlap c of Figure 1. This also applies to the passive leaf 33.

Figure 3 shows a horizontal section through a window with a fixed central post 36. The central post 36 consists of an outer post frieze 37 which is glued to a post core 38. The outer post frieze 37 is considerably wider than the post core 38 and in turn protrudes in the direction of the insulating glass pane 3 in such a way that an overlap c is produced which corresponds to the overlap c of Figure 1.

Figure 4 shows a vertical section through a frame 1 with fixed glazing.

In this embodiment, a frame inner frieze 39 can be subsequently screwed to the frame core 6 by means of a screw connection 40 in order to be able to insert the insulating glass pane 3 into the frame. An additional seal 41 is fixed in the frame inner frieze 39, which is in contact with the adjacent vertical surface 42 of the frame core 6. There, too, the outer frame frieze 7 has an overlap c with the pane edge 19, which corresponds to the overlap c of Figure 1. The glass recess b corresponds to the glass recess b of Figure 1. Furthermore, in the embodiment of Figure 4, an additional external seal is provided between the outer glass retaining strip 18 and the outer frame frieze 7.

tion 42 is provided.

The embodiment of Figure 5 differs from that of Figure 1 by a differently shaped outer glass retaining strip 18' with a weather leg that protrudes further outwards. The glass retaining strip 18' has a greater width so that it also extends outwards over the outer frame frieze 7. A water-tight groove 43 is provided on the underside of the glass retaining strip 18'. Furthermore, two rows of retaining elements 27 are provided on the upper side, into which the cover strip 25 can be clipped.

In the embodiment of Figure 6, the inner sash frieze 15 abuts directly on the vertical contact surface 23 of the frame core 6. The sash overlap seal 22 provided in this area is therefore not located between these two parts, but only abuts the vertical contact surface 23 of the frame core 6 from the side.

Claims (14)

1. Insulated glass window, in particular wooden or plastic window, consisting of at least one sash with a sash frame ( 2 ) with at least one insulating glass pane ( 3 ) inserted into the sash frame ( 2 ), and a surrounding frame ( 1 ), characterized in that the frame ( 1 ) has on the outside of the window a surrounding frame overlap frieze ( 7 ) arranged parallel to the pane plane, which protrudes beyond the pane edge ( 19 ). 2. Insulating glass window according to claim 1, characterized in that the frame overlap frieze ( 7 ) consists of the same material as the rest of the frame ( 1 ) and has a thickness of at least 18 mm, preferably 22 or 32 mm. 3. Insulating glass window according to claim 1 or 2, characterized in that the frame overlap frieze ( 7 ) is designed as a stop for the sash frame ( 2 ). 4. Insulating glass window according to one of the preceding claims, characterized in that a circumferential frame overlap seal ( 21 ) is arranged on the frame overlap frieze ( 7 ), against which the sash frame ( 2 ) rests. 5. Insulating glass window according to one of the preceding claims, characterized in that the frame ( 1 ) has an identical profile all around, at least in the stop area. 6. Insulating glass window according to one of the preceding claims, characterized in that the sash frame ( 2 ) has an identical profile all around, at least in the stop area. 7. Insulating glass window according to one of the preceding claims, characterized in that the sash frame ( 2 ) consists of a sash core frame ( 14 ), an inner sash frieze ( 15 ) arranged with a projection to the sash core frame and an outer sash frieze ( 16 ) arranged with a projection to the sash core frame, which can be screwed to the sash core frame ( 14 ). 8. Insulating glass window according to claim 7, characterized in that the projection of the inner and outer sash frieze ( 15 , 16 ) relative to the sash core frame ( 14 ) is the same. 9. Insulating glass window according to claim 7 or 8, characterized in that glass retaining strips ( 17 , 18 ) with the same profile are fixed to the inner and outer sash friezes ( 15 , 16 ), the thickness of which corresponds at least to that of the sash friezes ( 15 , 16 ). 10. Insulating glass window according to one of the preceding claims, characterized in that the glass recess (b) in the sash frame ( 2 ) is at least 17 mm, preferably 30 to 45 mm. 11. Insulating glass window according to one of the preceding claims, characterized in that the frame overlap frieze ( 7 ) on the outside of the frame ( 1 ) adjoins a water channel ( 8 ) or vortex channel. 12. Insulating glass window according to one of the preceding claims, characterized in that the water channel ( 8 ) or vortex channel consists of a milled or formed recess in the window frame ( 1 ), which is covered by the outer sash frieze ( 16 ) when the window is closed. 13. Insulated glass window according to one of the preceding claims, characterized in that on the outside of the window on the lower segment of the sash frame ( 2 ) a glass retaining strip ( 18 , 18 ') made of wood is fastened, which is covered by means of an outwardly projecting cover strip ( 25 , 25 ') made of metal or plastic, which has a retaining web ( 28 ) overlapping the glass strip ( 18 ) on the outer end face. 14. Insulating glass window according to claim 13, characterized in that the cover strip ( 25 ') has, in its end region facing the insulating glass pane ( 3 ), a hook-shaped bent end region which engages in a retaining groove ( 30 ) provided on the glass retaining strip ( 18 ).