CH686970A5 - Frames panel. - Google Patents

Description

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description

The invention relates to an outer cladding of the frame, namely the frame and the sash frame of an integral window according to the preamble of independent claim 1.

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, especially 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 blind and sash frames 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, as far 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 widened 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, ie up to the height 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 0 417 589 A1. Characteristics of this cladding system are that only a wide aluminum profile is used, but a more complex 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.

Finally, a window frame cladding is described in EP 0 022 904 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 bracing on the back is used, a detachable connection can be made by inserting wedges or screwing. 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 production of geometrically complex extruded profiles, which would make it difficult to wedge or screw them 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 also have another fundamental disadvantage. The window frame cladding, i.e. the closed frame shell leads as a result of

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Fluctuations in temperature cause noticeable two-dimensional dilation movements. 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 summary, the cladding systems currently available are to be assessed as costly, structurally imperfect and as very limited in the choice of materials.

The invention therefore pursues the task solution of creating a window frame cladding which is based on very simply profiled material, if possible produced by cold forming, and which 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 invention is defined in the characterizing part of independent patent claim 1, preferred exemplary embodiments result from the dependent patent claims.

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 receive 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 materials that can now be used extends the maintenance-free service life practically indefinitely, so that the investment costs are extremely profitable.

The enormously simplified corner solution within the frame shell, the connection-free overlap of horizontally and vertically running profiles, not only reduces the manufacturing effort, but also makes it easy to subsequently replace individual cladding legs two-dimensionally changing closed frame shell no longer exist.

An exemplary embodiment of the window frame cladding according to the invention is described in detail and with modifications with reference to the accompanying drawings. Show

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 sits 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, here the outer sealing profile 6 sits with its foot 61 in an outer groove 22 of the casement 2, while one Disc sealing lip 62 rests on 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 flank 63 of the horizontal section of the outer sealing profile 6, with the window sash closed, the upper edge 711 of the lower horizontal cladding leg 71 bears. 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. From the base part 81, the center seal 8 extends with three extensions, namely the wing sealing lips 82 and 83, which abut edges of the wing frame 2, and the trim leg sealing lip 84, which rests on the crossbars 712 and 722 of the horizontal and the vertical ver -

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clothing 71 and 72 seated. 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 flow 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 and also run out through the dilatation slots 14 in the lateral area. 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 are present in duplicate in each case in the horizontal and vertical form, 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 cladding 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 when their length expansion changes due to 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 bottom edge

716 of the lower horizontal covering leg 71 up to the upper edge of the upper horizontal covering leg 71. Due to the different arrangement of the lower and upper horizontal covering 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 the transition from the thermal insulation 9 to the frame doubling 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 trim legs 71 and 72 around the glare bar extension 717 or 727, then only make the glare bar 715 or 723 single-walled and / or to omit the turn 713 or 725. 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 trim 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 this. 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 the pressure of the crossbar 712 and 722 additionally fixes it.

In Fig. 4 an embodiment of the window frame cladding according to the invention on a sash is shown as a horizontal section; specifically the meeting of the two pivotable sash 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. The outer sealing profile 6 'is in principle of the same cross-section and arranged in the same way as in FIGS. 1 to 3. On each casement 2' or 2 "there is an outer sealing profile 6 ', which has its foot 61' in an external groove 22 'or 22a' is seated and its pane sealing lip 62 'lies against the insulating glass 3. However, the outer sealing profile 6' has a third innermost sealing flank 67 in addition to the sealing flanks 63 'and 64'. The inner edges 721 'lie on the outermost sealing flank 64'. of the two outer vertical cladding legs 72 ', not shown. The upper and lower edges 711' 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 one

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vertically extending window axis trim leg 73. The innermost sealing flank 67 is formed by a sealing extension which engages around an outer recessed edge 24 of the casement 2 'and 2'a.

This results in three levels in this frame shell 7 '. The window axis cladding leg 73 is closest to the frame 1 ', 2' and 2 ", the middle layer is formed by the two horizontal cladding legs 71 'and the outer layer is formed by the two vertical cladding legs 72' 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 712 'of the lower and upper horizontal cladding leg 71'. This creates dilatation joints 14 'in order to offer play in terms of the length extension the cladding legs 71 ', 72' and 73, so that only the surfaces lying against one another can shift in the event of length changes as a result of temperature fluctuations.

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 11 'on the casement 2' and is clamped to the base part 81 'of the central seal 8'. The center seal 8 'extends 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 embodiment with an extruded profile of simple cross-sectional geometry to form a frame shell 7 ". There are again two horizontal and vertical cladding legs 71" and 72 ". Each cladding leg, for example 71", has a crossbar 715 ", a crossbar 712 ", in which transverse web bores 714" are located, a final transverse web 712a "and a final nose 711". The trim legs 71 "and 72" are fixed to coupling elements 17 which are between the transverse web 712 "and the final transverse web 712a "are arranged at intervals. From the center seal 8, a trim leg sealing lip 84 is placed on the crossbar 712". The ventilation or drainage takes place via through bores 23 and the crossbar bores 714 ". The covering legs 71" and 72 "from the extruded profile shown here are loosely overlapping in the same manner in the corner joints as described in the previous figures, in order to freely allow a dilatation movement For the overlap in the corner joints, the trim legs 71 "and 72" on the crossbars 712 "and 722" and on the end tabs 711 "and 721" must be partially released.

Two variants were designed for the stop between the outer profile seal 6 "and the end lugs 711" or 721 ". An outer profile seal 6" is shown with only one sealing flank 63 ". In this case, the outer vertical trim legs 72" have one around that Sheet thickness of the trim leg 71 "longer end nose 721" than the end nose 711 "of the horizontal trim leg 71". Another possibility of bridging the difference in distance from the terminating lugs 711 "or 721" to the outer sealing profile 6 "is to use a sealing profile 6" with two correspondingly offset sealing flanks 63 "and 64" (cf. the description to 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 ", 72", 73 "would then overlap in three planes. There would then either have to be three different lengths of end lugs 711", 721 ", 731" with an outer sealing profile 6 "with a sealing flank 63" or at end lugs 711 ", 721", 731 "of the same length, an outer sealing profile 6" with three offset sealing flanks 63 ", 64", 67 ".

In the previous illustrations, the vertical covering legs 71, 71 'and 71 "were in the outer plane and overlapped the horizontal covering legs 72, 72' and 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 ', 72', 73, 71 ", 72", 73 ".

Claims (11)

Claims 1. Window frame cladding for weather protection and for 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 ") enclosed 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) which is attached to the outer sealing profile (6 , 6 ', 6 ") and on the center seal (8, 8'), characterized in that the frame shell (7) consists of vertical and horizontal cladding legs (71, 72; 71 ', 72', 73; 71", 72 ", 73") is formed, which overflows in two or three levels without a fixed connection to one another, each trim leg (71, 72, 71 ', 72', 73; 71 ", 72", 73 ") separately on the cover - or sash frame (1, 2, 2 ', 2a') is fastened, so that dilation movements only have a one-dimensional effect, and that the covering legs (71, 72, 71 ', 72 ', 73, 71 ", 72", 73 ") consist of profiled metal sheets or plastic profiles. 2. Window frame covering according to claim 1, characterized in that the covering legs (71, 72, 71 ', 72', 73) from a blind web 5 10th 15 20th 25th 30th 35 40 45 50 55 60 65 5 9 CH 686 970 A5 10th (715, 725, 735) and a cross bar (712, 722, 732) as well as optionally a rear flap (713, 723, 733) and a glare bar extension (717, 727), the material being in the area of the glare bar (715, 725 , 735) can run double-walled. 3. Window frame covering according to claim 1, characterized in that the covering legs (71 ", 72", 73 ") from a blind web (715", 725 ", 735"), a crossbar (712 ", 722", 732 " ), a final crosspiece (712a ", 722a", 732a ") and a final nose (711", 721 ", 731"). 4. Window frame covering according to one of claims 1 to 3, characterized in that the covering legs (71, 72, 71 ', 72', 71 ", 72") on the frame (1) and the window axis covering legs (73, 73 ") are attached to a casement (2 ', 2"), 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 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 ', 72', 73; 71 ", 72", 73 ") dilation slots or joints (14th ) 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, 22 ', 22a') is fixed, its Disc sealing lip (62, 62 ') abuts the insulating glass (3), and a material web (66) around a cavity (65) with humped shoulders one to three sealing flanks (63 "; 64, 63; 64', 63 ', 67) forms, wherein the innermost or only sealing flank (67, 63, 63 ") can engage around an outer edge (24) of the casement (2, 2 ', 2a'). 7. window frame covering 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 ') one Sash wing sits, and has two wing sealing lips (82, 83; 82 ', 83'), which rest on 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, 16) and on the crossbars (712, 722, 732, 712 ") of the covering legs (71, 72, 73; 71 ', 72'; 71", 72 ", 73") and / or has a sealing arm (85) which is separated from the base part (81), branches off, the above-mentioned crossbars undermine, and thus repels the moisture as a protective layer. 9. window frame cladding according to one of claims 1 or 5, characterized in that the ventilation and drainage of the window via through holes (23) in the casement (2, 2 ', 2a'), via crossbar holes (714, 714 ") and the dilation slots or joints (14) are made. 10. Window frame covering according to one of the Claims 1 or 3, characterized in that when using cladding legs (71 ", 72", 73 ") with angled end nose (711", 721 ", 731") to form the frame shell (7 ") for the individual levels, Cladding legs with different lengths of the end lugs mentioned are used so that all end lugs rest on the sealing flank (63 ") of the outer sealing profile (6"). 11. Window frame cladding according to claim 10, characterized in that when using identical cladding legs (71 ", 72", 73 ") to bridge the distance differences due to their overlap, an outer sealing profile (6") with a plurality of sealing flanks (64 ', 63 ', 67) is used. 5 10th 15 20th 25th 30th 35 40 45 50 55 60 65 6