AT402319B - WINDOW FRAME COVERING FOR WEATHER PROTECTION - Google Patents

Description

AT 402 319 B

The invention relates to a window frame cladding for weather protection and for facade design for a window with a window frame, one or more casement frames, with an insulating glass framed by an inner and an outer sealing profile and with a center seal for sealing between two frame parts, consisting of a frame shell, which lies against the outer sealing profile and the center seal. Wood is preferably used as the building material for the frame construction. However, plastics or metals or combinations of materials are also used. For weather protection, in particular of wooden parts and for decorative and design purposes, it is common to mount the frames on the outside, i.e. Weather side, to dress up. Extruded aluminum or building bronze profiles are used for the cladding.

Various cladding systems are known, with two basic types being distinguished. Either extruded profiles are used for the frame and the sash frame or only a wider profile is used, which covers both frames as far as they are visible from the outside. The profiles border on all-round profile seals to prevent the ingress of water and to separate the different materials. The profiles are usually held by coupling elements screwed onto the frame.

Now some typical marketable cladding systems are discussed in more detail. A window construction with a wooden frame and sash is known, the frame, insofar as it protrudes from the masonry, is covered by a first extruded profile with branched cross-sectional geometry. This profile extends approximately to the height of the first third of the casement. There it is partially overlapped by a second profile with a different geometry. The second profile covers the remaining 2/3 of the height of the casement. The insulating glass, which is held by block elements, sits in a recess in the casement. There is an all-round inner glazing seal between the insulating glass and the casement. The outer circumferential glazing seal sits on the one hand on the insulating glass and on the other hand is supported on the second profile, which extends into the initial zone of the insulating glass. This profile is anchored to coupling elements that are attached to the casement at a distance of approximately 25 cm. The second profile is anchored in the same way. A center seal sits in a groove of the frame and extends both to a stop edge of the casement and to a web of the second profile.

In a modified embodiment, the first profile is broadened in such a way that it partially covers the window frame on the one hand and completely covers the sash frame on the other hand, that is to the level where the insulating glass runs. The second profile is arranged between the first profile and the roughly common terminating line of insulating glass and casement, which is completely surrounded on the side facing the first profile by a likewise widened outer glazing seal. The profiles are fixed with coupling elements and there is also a center seal. The special feature of this variant is that only one continuous, wide profile is visible from the outside and that a material with a lower surface quality can be used for the second profile, which only has a supporting function for the common center seal, since the center seal clad like a band. The design of a facade gives a different aesthetic picture, but there are no technical or economic advantages to the previous variant in total.

Another embodiment is known from EP 417 589 A1. Characteristics of this cladding system are that only a wide aluminum profile is used, but a more complicated cross-sectional geometry, and that both glazing seals are supported by an insulating profile, usually made of glass fiber reinforced plastic, which is arranged between the casement and the insulating glass.

DE 31 17 139 A1 discloses a wood-aluminum window, according to which the insulating glass is inserted from the inside and held with a glass retaining strip. The sealing between the insulating glass and the outer frame is made using a special rubber sealing profile, which has the sole function of preventing the ingress of water. Inserting the insulating glass from the inside and the striking and expensive glass retaining strip no longer correspond to the contemporary architecture.

Finally, a window frame cladding is described in EP 22 904 A1, which uses a rolled profile made of copper or a copper alloy. This is to meet special architectural requirements with simultaneous corrosion resistance. Although the roll profile used here expands the design options and can be produced more efficiently than the complicated extruded profiles mentioned above, all the cladding systems developed to date are associated with a number of noticeable disadvantages.

The profiles used for the cladding are mitred and joined to form a frame shell. The corner connections are made in two possible ways. If a profile with a corresponding strut on the back is used, a detachable connection is made by inserting 2

AT 402 319 Can be made from wedges or screws. Otherwise the interfaces must be welded and then treated on the visible side. The necessary corner connections lead to a limited, financially justifiable choice of materials. The creation of geometrically complex extrusion profiles, which would make it difficult to wedge or screw together, is limited to a few materials. However, extruded profiles are already expensive because of the energy-intensive manufacturing process and the high tool costs for the profile matrices. Welding, e.g. of stainless steel sheet, requires a very expensive post-treatment in order to obtain an optically acceptable surface. This also limits the economically sensible choice of materials and thus the variety of designs. When using building bronze, the high costs of the bare semi-finished product already have a strong impact. In addition to the limited choice of materials, the present cladding systems have another fundamental disadvantage. The window frame cladding, i.e. the closed frame shell performs noticeable two-dimensional dilation movements due to temperature fluctuations. Therefore, the size of the windows is limited in advance. In order to absorb the changes in length that occur, special coupling parts must be installed. Nevertheless, there are often annoying cracking noises caused by the material shifts. In conclusion, the currently available cladding systems are to be assessed as costly, structurally imperfect and as very limited in the choice of materials.

The object of the invention is therefore to pursue the task of creating a window frame cladding which is based on very simply profiled material - if possible produced by cold forming - and allows the designer a free choice among the metallic materials. Furthermore, the effort involved in producing the corner connections occurring on the frame shell should be significantly reduced and the negative influences of the dilation movements should be eliminated. Overall, the invention also aims at more economical window frame cladding.

The object is achieved in that the frame shell is formed from vertical and horizontal cladding legs that overlap in two or three planes without a fixed connection to one another, each cladding leg being attached separately to the frame or sash frame, so that dilatation movements only occur impact one-dimensionally, and that the cladding legs consist of cold-formed profiled metal sheets or of a metal sheet or plastic profile produced by another profiling process.

Thanks to the innovative design solution - the low-machining cladding concept - the architect has the opportunity to use a significantly expanded range of metals or alloys as cladding panels. The cost of producing the profile sheets and the frame shell is reduced because the expensive profile matrices are no longer required, the energy requirement is reduced and in principle the corner connections are eliminated. The aforementioned cost reduction makes the use of higher quality materials financially viable. In addition to the previously common aluminum, which must be given additional corrosion protection treatment, chrome steel, titanium zinc, copper, brass and other metals and alloys can now be used for the outer window cladding. The high corrosion resistance of the now replaceable materials extends the maintenance-free service life almost indefinitely, so that there is an excellent return on investment costs.

The enormously simplified corner solution within the frame shell, the connection-free overlap of horizontally and vertically running profiles, brings not only a reduction in production costs, but also an easily realizable subsequent interchangeability of individual cladding legs, but above all that the dilation movements only extend one-dimensionally and thus the previous disadvantages of a two-dimensionally changing closed frame shell.

The cladding legs preferably consist of a crossbar and a crossbar and optionally a rear corner and a crossbar extension, the material in the area of the crossbar being double-walled. The proposed double-walled area in the area of the anti-glare web results in expanded profiling options in that the profile for the cladding legs can be rolled or folded.

Or the cladding legs consist, in a manner known per se, of a blind web, a cross web, an end cross web and an end nose. This opens up the possibility of producing the profile for the trim legs using the extrusion process.

The cladding legs can be attached to the window frame and the fender-axis cladding leg to a sash frame, by means of screws and / or gluing on a sealing tape and / or by the clamping action of the center seal and / or, as is known per se, by coupling elements, whereby the Dilatation movement of the trim legs on the frame is guaranteed. 3rd

AT 402 319 B

To compensate for dilatation movements of the overlapping cladding legs, dilation slots or joints are provided in the end zones of the overlap areas. These cause efficient drainage.

According to the invention, the outer sealing profile is fixed with its foot in an external groove, its pane sealing lip lies against the insulating glass and a material web forms one to three sealing flanks around a cavity with humped shoulders, the innermost or only sealing flank possibly encompassing an outer edge of the casement. Due to the direct insertion of the outer sealing profile with one foot in an external groove, an otherwise necessary component is omitted, the tight fit and tightness of the sealing profile being fully guaranteed.

Advantageously, the central seal sits with its base part in a central groove of the frame or a sash of a sash and has two wing sealing lips which rest on edges of the sash. The immediate insertion of the base part of the center seal in the center groove and the two wing sealing lips present on the one hand seal against meteorological water and on the other hand against sound, whereby the center seal is firmly fixed.

Furthermore, the center gasket can have a cladding leg sealing lip that covers the screws and is placed on the crossbars of the cladding legs, and / or can have a sealing arm that branches off from the base part, underscores the above-mentioned crossbars, and thus repels the moisture as a protective layer. Due to the special geometry of the center seal, there is mutual insulation between metal and wood, i.e. between the crossbar and the frame or the frame doubling.

The ventilation and drainage of the window, as is known per se, can take place via through holes in the casement, via crossbar holes and via the dilation slots or joints. This results in excellent drainage and ventilation of the cavities.

Preferably, when using cladding legs with angled end lug to form the frame shell for the individual levels, cladding legs with different lengths of said end lugs are used, so that all end lugs rest on the sealing flank of the outer sealing profile. The use of an extruded cladding leg with an angled end lug simplifies the adjacent outer sealing profile, especially the sealing flank.

Or when using cladding legs with an angled end lug to form the frame shell for the individual levels, cladding legs with an identical length of the mentioned end lugs are used, and an outer sealing profile with several sealing flanks is used to bridge the difference in distance due to their overlap. With the use of cladding legs of identical length, an outer, constant view is obtained, which is optically advantageous.

With reference to the accompanying drawings, an embodiment of the window frame cladding according to the invention is described in detail and with modifications. 1 shows a vertical section through the horizontally extending legs of the window frame with cladding with the window sash closed;

Figure 2 is a horizontal section through the vertical legs of the window frame.

3 shows a variant of FIG. 1 with a different type of center seal and simplified profiled sheet;

Fig. 4 is a horizontal section of the sash, and

Fig. 5 shows a variant of Fig. 1 with extruded profile.

1 and 2, a window is formed from the inner frame 1 and the inner casement 2, which is pivotable for the purpose of opening the window. Frame 1 and sash 2 run flush on the inside. They typically consist of wood. In the casement 2, the insulating glass 3 is used as double or triple glazing. The insulating glass 3 is fixed by blocking elements 4 - these mostly consist of plastic - the insulating glass 3 being able to vary in thickness and nature according to the requirements. The inner sealing profile 5 is seated in an inner groove 21 between the casement 2 and the insulating glass 3. On the outside of the window, the outer sealing profile 6 runs around the insulating glass 3, in this case the outer sealing profile 6 sits with its foot 61 in an outer groove 22 of the casement 2, while a pane sealing lip 62 abuts the insulating glass 3. The foot 61 can be securely fixed in the outer groove 22, e.g. be specially profiled by sealing lips. The outer sealing profile 6 has the particularly elastic sealing flanks 63 and 64 for sealing against the frame shell 7, each consisting of a pair of horizontal and vertical cladding legs 71 and 72, respectively. Foot 61 and disk sealing lip 62 lie opposite one another. Between these, a material web 66 with humped shoulders runs around a cavity 65, as a result of which the sealing flanks 63 and 64 are formed. On the recessed sealing flange 4

AT 402 319 B ke 63 of the horizontal section of the outer sealing profile 6 lies - with the window sash closed - on the upper edge 711 of the lower horizontal covering leg 71. The lower edge of the upper horizontal trim leg lies accordingly. The inner edges 721 of the vertical trim legs 72 lie on the front sealing flank 64 of the vertical section of the outer sealing profile 6.

The center seal 8 provides a seal between the frame 1 and the pivotable sash frame 2. The center seal 8 is fixed with its base part 81 in a center groove 11, which is formed by the frame 1 and the frame doubling 10 attached to the thermal insulation 9. The central seal 8 extends from the base part 81 with three extensions, namely the wing sealing lips 82 and 83, which bear against edges of the wing frame 2, and the trim leg sealing lip 84, which rests on the transverse webs 712 and 722 of the horizontal and the vertical trim leg 71 and 72 sits on. The retaining screws 12 are covered by the extension of the center seal 8, which leads to the trim leg sealing lip 84.

The entire frame shell 7 is fastened to the frame doubling 10 by means of the retaining screws 12, which are attached along the transverse webs 712 and 722 of the trim legs 71 and 72 at a distance of approximately 20 cm. A sealing tape 13 is attached between the crossbars 712 and 722 and the frame doubling 10. With larger window dimensions and greater loads on the frame shell 7, it is expedient to provide the trim legs 71 and 72 with a rear bend 713 and 723, respectively, which protrudes into the central groove 11 and is clamped between the frame doubling 10 and the base part 81 of the center seal 8 .

Possibly penetrated meteor water or condensate formed can be measured through through holes 23 in the sash 2, will first drip onto the center seal 8 and from there through cross bar holes 714 to the outside as well as in the lateral area also through the dilation slots 14. This system of passages allows ventilation and drying out of the window components.

The most important characteristic of the invention is the design of the actual window frame cladding, i.e. the shaping of the profiled sheets with which the cladding legs 71 and 72 are formed, and the arrangement of these, which - in each case twice present in the horizontal and vertical - result in the frame shell 7 . The lower horizontal cladding leg 71 consists of the crossbar 715 with the crossbar extension 717, the crossbar 712 and the rear turn 713. The crossbar 715 extends approximately in height from the lower edge of the frame doubling 10 to the sealing flank 63 of the outer sealing profile 6. Between the upper edge 711 and the bend of the crossbar 712 of the covering leg 71, the profiled sheet is double-walled. The width of the horizontal cladding leg 71 extends approximately up to 5 mm each to the transverse webs 722 of the vertical cladding leg 72, so that a corresponding dilatation slot 14 remains open in the corners where the horizontal and vertical cladding legs 71 and 72 meet. The cladding legs 71 and 72 are not connected to one another in the corners, so that they can shift into one another if their longitudinal expansion changes as a result of temperature fluctuations. The dilatation slot 14 offers scope for the changes in length of the horizontal cladding legs 71. Each trim leg 71 and 72 is fixed separately by a few retaining screws 12.

When viewed from the outside, the two vertical cladding legs 72 overlap at right angles in front of the horizontal cladding legs 71, so that on the frame shell 7 there are externally vertical abutting edges in the thickness of the profile sheet thickness. The vertical trim legs 72 extend from the lower edge 716 of the lower horizontal trim leg 71 to the upper edge of the upper horizontal trim leg 71. Due to the different arrangement of the lower and upper horizontal trim leg 71, the lower edge changes to the upper edge. The vertical cladding legs 72 extend in width from their outer edges 726 - for example, over the heat insulation 9 for doubling the frame 10 - to their inner edge 721, which lies against the front sealing flank 64 of the outer sealing profile 6. In their cross-sectional profile, the horizontal and vertical trim legs 71 and 72 are identical. It may be expedient to insert an insulating intermediate layer between the covering legs 71 and 72.

Various modifications of the window frame cladding are presented below. For example, it is possible to narrow the cladding legs 71 and 72 by the glare bar extension 717 or 727, then to make the glare bar 715 or 725 only single-walled and / or to omit the turn 713 or 723. 3 shows an embodiment with a modified center seal 8 and without the bow 713. The center seal 8 likewise has the wing sealing lips 82 and 83, but not the cladding leg sealing lip 84, but instead extends from its base part 81 a sealing arm 85 which runs vertically downwards under the crosspiece 712, between the frame doubling 10 and on the latter. 5

AT 402 319 B

As a result, the sealing tape 13 becomes obsolete. It is also practicable to dispense with the retaining screws 12 with a lower stability requirement and to fix the crossbars 712 and 722 to a double-sided adhesive sealing tape 13. In this case, it could make more sense to use a center seal 8 which, in addition to the sealing arm 85, also has the trim leg sealing lip 84, because its pressure 5 additionally fixes the crossbars 712 and 722.

4 shows an embodiment of the window frame cladding according to the invention on a sash as a horizontal section; specifically the meeting of the two pivotable casement frames 2 'and 2a' on the window axis 15. In order to surround the two insulating glasses 3, a circumferential inner sealing profile 5 is arranged in the usual way. In principle, the outer sealing profile 6 'is of the same cross-section and arranged in the same way as in FIGS. 1 to 3. On each casement 2' or 2'a there is an outer sealing profile 6 ', which with its foot 61' in an outer groove or 22a 'sits and its pane sealing lip 62' abuts the insulating glass 3. However, the outer sealing profile 6 'to the sealing flanks 63' and 64 'has a third innermost sealing flank 67. On the outermost sealing flank 64 'are the inner edges of the two outer vertical 5 cladding legs, not shown. The upper or lower edge of the horizontal cladding legs 71 'lie on the middle sealing flank 63'. The innermost sealing flank 67 forms the stop for the outer edges 731 of the correspondingly wide, vertically extending window axis cladding leg 73. The innermost sealing flank 67 is formed by a sealing extension which engages around an outer edge 24 of the casement frames 2 'and 2'a. 20 This results in three levels in this frame shell 7 '. The window axis cladding leg 73 is closest to the blind and sash frames 2, 2 'and 2'a, the middle layer is formed by the two horizontal cladding legs 71' and the outer layer is formed by the two vertical cladding legs located on the outside of the window. The height of the window axis cladding leg 73 expediently extends in each case approximately up to 25 mm to the transverse webs of the lower and upper 25 horizontal cladding leg 71 '. As a result, there are gaps in the diatation to offer the length expansion play. Here, too, there is no fixed connection between the covering legs 71 ′ and 73, so that when the length changes as a result of temperature fluctuations, the surfaces that are only adjacent to one another can shift. The fixed-axis cladding leg 73 consists of the double-leaf, double-walled blind web 735, the transverse web 732 and 30 bent therefrom at right angles, and the subsequent turn 733.

The window axis cladding leg 73 is held on its transverse web 732 by means of a plurality of screws 16 which are screwed into the casement 2 '. A sealing tape 13 is attached between the crosspiece 732 and the casement 2 '. The turn 733 protrudes into a central groove on the casement 2 'and is clamped to the base part 81' of the central seal 8 '. The central seal 8 'extends 35 from its base part 81' to the two wing sealing lips 82 'and 83'. To improve the clamping effect, the base part 81 'can be specially profiled by sealing lips.

5 shows an exemplary embodiment with an extruded profile of simple cross-sectional geometry to form a frame shell 7 " shown. Again, there are two horizontal and vertical cladding legs 71 ". Each panel leg, e.g. 71 " has a blind web 715 ", a 40 cross web 712 " in which cross web bores 714 " a cross bar 712a ”and a nose 711 " on. The trim legs 71 " on coupling elements 17, which between the crosspiece 712 " and the crossbar 712a " are arranged at intervals. From the center seal 8, a trim leg sealing lip 84 is placed on the crossbar 712 " on. Via through bores 23 and the cross bar bores 714 " ventilation or drainage takes place. The fairing legs 71 " from the extruded profile shown here are arranged loosely overlapping in the corner joints in the same way as described in the previous figures, in order to allow a dilation movement freely. For the overlap in the corner joints, the trim legs 71 " on the crossbars 712 " and on the end lugs 711 " partially released. For the stop between the outer profile seal 6 " and the end lugs 711 ”, two such variants were designed. An outer profile seal 6 " with only one sealing flank 63 ". In this case, the outer vertical cladding legs have a sheet metal thickness of the cladding legs 71 " longer nose than the nose 711 " the horizontal fairing leg 71 ". Another way to measure the difference in distance from the terminating lugs 711 " to the outer sealing profile 6 " to bridge, consists of a sealing profile 6 " to be used with two correspondingly offset sealing flanks (cf. the description of FIGS. 1 to 3).

A sash (see FIG. 4) can also be covered with the extruded profile according to FIG. 5. The trim legs 71 " would then overlap in three levels. There would then have to be either three different lengths of end lugs 711 ", with an outer sealing profile 6 " with a seal 6

Claims (11)

AT 402 319 B flank 63 " be present or, if the end lugs 711 " have the same length, an outer sealing profile 6 " with three staggered sealing flanks (like the sealing flanks 63 ', 64', 67 in FIG. 4). In the previous illustrations, the vertical cladding legs 71, 71 'and 71 " in the outer plane and overflowed the horizontal cladding legs 72. A reversal of this covering arrangement is also possible. A wide variety of materials, such as metals, plastics and their combinations, come into consideration for the trim legs 71, 72, 71 ', 73, 71 ". 1. Window frame cladding for weather protection and facade design for a window with a window frame (1), one or more casement frames (2, 2 ', 2a'), with one of an inner and an outer sealing profile (5, 6, 6 ', 6 ") framed insulating glass (3) and with a center seal (8, 8') for sealing between two frame parts (1, 2; 2 ', 2a'), consisting of a frame shell (7, 7 ', 7') , which rests on the outer sealing profile (6, 6 ', 6 ") and on the center seal (8, 8'), characterized in that the frame shell (7, 7 ', 7") consists of vertical and horizontal covering legs (71, 72 ; 71 ', 73; 71 ") is formed, which overflows in two or three levels without a fixed connection to one another, with each trim leg (71, 72, 71', 73: 71 ") separately on the frame or sash (1 , 2, 2 ', 2a') is attached so that dilation movements only have a one-dimensional effect, and that d he cladding legs (71, 72, 71 ', 73, 71 ") consist of cold-formed profiled metal sheets or of a metal sheet or plastic profile produced by another profiling process. 2. Window frame covering according to claim 1, characterized in that the covering legs (71, 72, 71 ', 73) from a blind web (715, 725, 735) and a crossbar (712, 722, 732) and optionally a rear corner (713, 723, 733) and an anti-glare web extension (717, 727), the material in the area of the anti-glare web (715, 725, 735) being double-walled. 3. Window frame cladding according to claim 1, characterized in that the cladding legs (71 ") in a manner known per se from a blind web (715 "), a crossbar (712 "), an end crossbar (712a ") and an end nose (711 ") exist. 4. Window frame covering according to one of claims 1 to 3, characterized in that the covering legs (71, 72, 71 ', 71 ") on the frame (19) and the window axis covering leg (73) on a casement (2nd ') are attached, namely by means of screws (12, 16) and / or gluing on a sealing tape (13) and / or by the clamping action of the center seal (8, 8') and / or, as is known per se, by coupling elements ( 17). 5. Window frame cladding according to claim 1, characterized in that to compensate for dilatation movements of the overflowing cladding legs (71, 72; 71 ', 73; 71 ") dilation slots or joints (14) are provided in the end zones of the overlap areas. 6. Window frame covering according to claim 1, characterized in that the outer sealing profile (6, 6 ', 6 ”) with its foot (61, 61') in an outer groove (22, 22a ') is fixed, its vaginal sealing lip (62nd , 62 ') on the insulating glass (3), and a material web (66) around a cavity (65) with humped shoulders forms one to three sealing flanks (63 "; 64, 63; 64', 63 ', 67), whereby the innermost or only sealing flank (67, 63, 63 ”) optionally engages around an outer edge (24) of the casement (2, 2 ', 2a'). 7. window frame cladding according to claim 1, characterized in that the center seal (8, 8 ') with its base part (81, 81') in a central groove (11) of the frame (1) or a sash (2 ') of a sash sits, and has two wing sealing lips (82, 83; 82 ', 83'), which bear against edges of the wing frame (2, 2a '). 8. Window frame covering according to one of claims 1 or 7, characterized in that the center seal (8, 8 ') has a covering leg sealing lip (84) which covers the screws (12) and on the crossbars (712, 722) the covering leg (71, 72, 73; 71 '; 71 ") touches down, and / or has a sealing arm (85) which branches off from the base part (81) and branches under the aforementioned 7 AT 402 319 B crossbars, and so as Protective layer that repels moisture. 9. Window frame cladding according to one of claims 1 or 5, characterized in that the ventilation and drainage of the window, as known per se, through holes (23) ms casement (2, 2 ', 2a'), via crossbar holes (714 , 714 ") and via the dilation slots or joints (14). 10. Window frame cladding according to one of claims 1 or 3, characterized in that when using cladding legs (71 ") with angled end nose (711 ") to form the 70 frame shell (7 "), for the individual levels, cladding legs with different The length of the end lugs mentioned can be used so that all end lugs are in contact with the sealing flank (63 ") of the outer sealing profile (6"). 11. Window frame cladding according to one of claims 1 or 3, characterized in that when 75 using cladding legs (71 ") with angled end nose (711 ") to form the frame shell (7 "), for the individual levels, cladding legs with identical Length of the end lugs mentioned are used and an external sealing profile (6 ') with several sealing flanks (64', 63 ', 67) is used to bridge the distance differences due to their overlap. 20 Including 5 sheets of drawings 25 30 35 40 45 50 8 55