EP1026357A2 - Frame section member for wood-metal windows or doors - Google Patents

Abstract

The frames have a protective lining (5,8) of thin-walled aluminum formed as a profiled shell on their outdoor facing side, with at least two longitudinally aligned engagement strips (20,21). The strips each start from a profiled section (22,35) and are inclined or run across a glazing plane (17) at a distance (a1) from each other in a profiled plane (23,24) running parallel to the glazing plane. Each strip is fitted with a keyed engagement in a guide groove (25) of the wooden frame arm (4,7). A groove-like hollow cavity (29) for holding at least one elastic press-fit insert (30) is formed through a support face (27) of the wooden frame arm running along a guide groove and through a support strip (28) of the profiled shell engaging over this support face.

Description

The invention relates to frame profiles for the frame and the casement of wood-metal windows or - Doors, consisting of a load-bearing construction element serving wooden frame legs and a weather-side, made of drawn, thin-walled aluminum single or multi-layered protective cladding, which by interlocking interlocking connecting elements is connected to the wooden frame leg.

With the known wood-aluminum window constructions the wooden frames and the aluminum profiles Protective cladding frame made separately and each as a complete complete frame with each other connected.

The attachment of the aluminum profile frame to the wooden frame takes place, for example, by so-called rotary holders as individual elements at certain intervals on the outside the wooden frame can be fixed with screws and which are profiled so that they are in a rotational position in mounting rails of the respective aluminum profile frame can be introduced. By rotating it accordingly about 90 ° then these rotary holders are in a rotating position brought in which they hold the aluminum profile.

The aluminum profiles are each elastic Support strips provided on the outer surfaces of the wooden frame legs or sealing on the glazing because of their elasticity Rotating holders are engaged with a profile parts certain compressive stress on the counter surfaces of the rotary holder hold on. By appropriate profiling both the rotary holder heads as well as the profile parts of the Aluminum profiles is also guaranteed that the Aluminum profiles on these rotary holders in all directions can stretch without tension.

Other aluminum profiles are designed so that they are in Longitudinal grooves of corresponding counter profiles of the respective Wooden frames can be clipped. With these profiles additional plastic inserts are required, between the outer surfaces of the wooden frames and the aluminum profiles must be arranged to secure the position. The fixation of the position that can be achieved in this way Aluminum profile frame on the wooden frame is insufficient.

The invention has for its object a frame profile of the type mentioned at the beginning to create the easier producible, easier to process and easier to process is.

This object is achieved in that the protective covering a shell profile with at least has two longitudinal engagement strips, the each from a transverse or oblique to a glazing level profile section starting with a certain distance (a1) from each other at an im essentially parallel to the glazing plane Profile level run and in each case at least approximately form fit in a guide groove of the wooden frame leg engage, being through a along a guide groove running support surface of the wooden frame leg as well as by a support bar overlapping this support surface of the shell profile a groove-like cavity Inclusion of at least one resilient press insert is formed.

The main advantage of the design according to the invention of the frame profile can be seen in that the shell profile of the protective covering very lightly along the length of the wooden frame profile postpone that the engagement strips with the for provided their grooves initially loosely in Come engagement and that thereafter by means of the resilient Press insert, which in the groove-like cavity Is pressed lengthways, an elastic press connection between the protective cover and the wooden frame arises.

It is important that this press connection is so firm Fixation of position between these two interconnected Construction parts ensures that both parts in one operation in the length provided can be miter cut together. It is therefore no longer necessary the wooden frame and the To produce the shell profile frame of the protective cladding separately and connect them later. Man achieves a considerable reduction in workload and a less expensive manufacturing method. The well-known The rotary holder and the fastening by screws are not necessary.

Claims 2 to 17 relate to advantageous refinements the invention.

By the design of claim 2 is in each If the stability of the wooden frame leg improves guaranteed in the area of the guide grooves by an increased distance between the guide grooves is maintained.

With the cross-sectional profiles provided according to claim 3 the press insert, this is easy on the one hand produce and on the other hand in a relatively simple manner the space provided for them between the support surface of the wooden frame leg and the support strip of the shell profile deploy.

It can also be easily pulled out of this cavity, if, for example, one with such a frame profile discarded window or door and the two construction elements, namely the wooden frame leg and the protective cover, separated from each other should be.

The configuration according to claim 4 ensures that the press insert on the one hand the required Strength of the connection between the shell profile and guaranteed the wooden frame and on the other hand by their Elasticity that usually consists of aluminum Shell profile gives the opportunity to look at the result of Thermal expansion or cold shrinkage in the guide grooves parallel to the frame or glazing level and across to move longitudinally of the wooden frame legs.

From this point of view, the design of the Invention according to claim 5 advantageous because it ensures is that the lining of all four frame legs a wooden frame, for example a window sash, Door leaf or a frame after all four directions in the common plane evenly can move or compensating.

The configuration according to claim 6 results in Advantage of a short lever arm on which the press insert acts on the support strip of the shell profile, by which a safe guidance without great bending stress is guaranteed.

With the configuration according to claim 7, a good fixation the press insert in the intended for their inclusion groove-like cavity can be ensured while is achieved by the configuration according to claim 8, that the opening side of the press insert receiving Cavity easily accessible and thus the press insert easily can be used.

While by the embodiment of claim 9 a sufficient freedom of movement of the shell profile on the Wood frame profile can be achieved by the design be ensured according to claim 10 that Shell profile with the wooden frame leg or with its Guide grooves remains engaged even when the Press insert is not yet used. This will make the Assembly of the press insert made easier.

The embodiment of the invention according to claim 11 ensures better leadership and greater stability of the Engagement strips, while the configuration according to claim 12 a compact profile with a material and weight saving Profile shape allows.

The embodiment of the invention according to claim 13 carries insofar to facilitate the production of corner connections between each other at right angles or at an angle butting shell profile legs than that provided strips are able to connect corner brackets tightly fit to take each to ensure flush corner connections.

With the configuration according to claim 14 one achieves one improved sealing of the window sash on the protective cladding or on the shell profile of the frame, one improved insulation and also a greater profile depth, by a head over the wing profile to get outside.

While one by the embodiment of claim 15 very simple profile with stability increasing Effect can be achieved by the configuration according to claim 16 regarding this stability-increasing effect the inner shell of the double-shell shell profile be reinforced so that even on a contact surface profile gasket attached to the protective cladding of the window sash receives sufficient contact pressure.

The embodiment according to claim 17 is advantageous in that than through it the crossbar increased flexibility or elasticity through which its risk of breakage, that exist with temperature-dependent stretching and shrinking would be greatly reduced.

The embodiments of claims 18 to 23 are used for Achieving permanently stable and resilient corner connections between each with miter cut surfaces colliding frame legs.

Fig. 1

einen Horizontalschnitt durch die beiden vertikalen Holzrahmenschenkel eines Fenster- oder Türflügels und eines dazugehörigen Blendrahmens jeweils mit einem Schalenprofil aus Aluminium;

Fig. 2

das Schalenprofil des Holzrahmenschenkels des Fenster- oder Türflügels mit einer zylindrischen Preßeinlage;

Fig. 3

das Schalenprofil des Blendrahmens, ebenfalls mit einer zylindrischen Preßeinlage;

Fig. 4

eine andere Ausführungsform der Preßeinlage;

Fig. 5

einen Eckverbindungswinkel für das Schalenprofil der Fig. 2 in isometrischer Darstellung;

Fig. 6

in isometrischer Darstellung das Querschnittsprofil des Holzrahmenschenkels des Fensterflügels oder Türflügels;

Fig. 7

die zum Holzrahmenschenkel der Fig. 6 gehörige Glasleiste aus Holz;

Fig. 8

den Holzrahmenschenkel des Blendrahmens in isometrischer Darstellung;

Fig. 9

in verkleinerter Darstellung den Rahmenschenkel des Fensterflügels aus Fig. 1;

Fig. 10

in einer Schnittdarstellung entlang der Schnittlinie X-X aus Fig. 9 drei auf Gehrung geschnittene Holzrahmenschenkel eines Fenster- oder Türflügels;

Fig. 11

den Eckverbinderwinkel der Fig. 5 in verkleinerter Seitenansicht.

Fig. 12

in verkleinerter Schnittdarstellung den Holzrahmenschenkel des Blendrahmens aus Fig. 1 mit einem eingesetzten Eckverbindungswinkel;

Fig. 13

in einer Schnittdarstellung nach der Schnittlinie XIII-XIII aus Fig. 12 drei auf Gehrung geschnittene Blendrahmenschenkel mit zwei Eckverbindungswinkeln;

Fig. 14

einen Eckverbindungswinkel für das Schalenprofil des Blendrahmens in isometrischer Darstellung;

Fig. 15

in perspektivischer Darstellung einen Fensterrahmenschenkel mit Blick auf eine Gehrungsschnittfläche;

Fig. 16

einen Schnitt XVI - XVI aus Fig. 15;

Fig. 17

die gleiche Schnittdarstellung wie Fig. 15, jedoch mit einem anderen Nutenprofil und

Fig. 18

eine Eckverbindung zweier Fensterrahmenschenkel in geschnittener Draufsicht.

An exemplary embodiment of the invention is explained in more detail below with reference to the drawing. It shows:

Fig. 1

a horizontal section through the two vertical wooden frame legs of a window or door wing and an associated frame, each with a shell profile made of aluminum;

Fig. 2

the shell profile of the wooden frame leg of the window or door wing with a cylindrical press insert;

Fig. 3

the shell profile of the frame, also with a cylindrical press insert;

Fig. 4

another embodiment of the press insert;

Fig. 5

a corner connection angle for the shell profile of Figure 2 in an isometric view.

Fig. 6

in isometric representation the cross-sectional profile of the wooden frame leg of the window or door wing;

Fig. 7

the wooden glazing bar belonging to the wooden frame of FIG. 6;

Fig. 8

the wooden frame leg of the frame in an isometric view;

Fig. 9

in a reduced representation the frame leg of the window sash from Fig. 1;

Fig. 10

in a sectional view along the section line XX from FIG. 9, three miter-cut wooden frame legs of a window or door leaf;

Fig. 11

5 in a reduced side view.

Fig. 12

in a reduced sectional view the wooden frame leg of the frame from Figure 1 with an inserted corner connection angle.

Fig. 13

in a sectional view along the section line XIII-XIII from FIG. 12, three miter-cut frame legs with two corner connection angles;

Fig. 14

a corner connection angle for the shell profile of the frame in an isometric view;

Fig. 15

a perspective view of a window frame leg with a view of a miter cut surface;

Fig. 16

a section XVI - XVI of Fig. 15;

Fig. 17

the same sectional view as Fig. 15, but with a different groove profile and

Fig. 18

a corner connection of two window frame legs in a sectional plan view.

Fig. 1 shows a horizontal section through a vertical Window frame leg 1 and a frame leg 2 of a closed wood-aluminum window.

The window frame leg 1 consists of a wooden frame leg 4, which serves as a load-bearing construction element and from a weather side, from drawn, thin-walled Aluminum existing single-skin protective cover 5.

The frame leg 2 also has a load-bearing capacity Construction element on a wooden frame leg 7, the weather side also with one, made of drawn, thin-walled Aluminum existing, but double-shell protective cladding 8 is provided.

The usual way with a rollover bar 10 an inner surface 11 of the frame leg 2 or his Wooden frame legs 7 adjacent wooden frame legs 4 of the window frame leg 1 is with a glazing bead 12 provided by means of a rubber seal 13 on the inside an insulating glazing 14 is present. On the Cover frame leg 2 facing side is the wooden frame leg 4 in the usual way with a fitting rebate 15 and a fitting groove 16, the fitting fold 15 on the weather side, parallel to the middle glazing level 17 extending stop surface 18 ends.

The protective covering 5 of the window frame leg 1 is made from a single-shell profile, the two each longitudinal engagement bars 20 and has 21. The engagement bar 20, the weather side runs outside the insulating glazing 14, is based from an inclined profile section 22 in a profile plane running parallel to the glazing plane 17 23 and protrudes positively and in the transverse direction fits into a guide groove 25 of the wooden frame leg without play 4. This guide groove 25 is also in profile level 23.

On the inside of the insulating glass 14 the guide groove 25 has the wooden frame leg 4 fillet-like support surface 27, which itself extends along the guide groove 25. This support surface 27 forms with an overlapping support strip 28 of the Shell profile of the protective covering 5 a groove-like Cavity 29 for receiving a resilient press insert 30. The support bar 28 is on the engagement bar 20 attached.

The second engagement strip 21 protrudes from the opposite side of the wooden frame leg 4, that is to say from the side facing away from the insulating glazing 14, into a guide groove 26 which also lies in a profile plane 24 running parallel to the glazing plane 17. The two guide grooves 25 and 26 have a distance a1 from one another in the direction of the profile planes 23 and 24. They are also offset from one another in the transverse direction to their profile planes 23 and 24.
It can be seen in FIG. 1 that the support surface 27 and the support strip 28 are located on the side of the wooden frame leg 4 facing the insulating glazing 14 and that the support surface 27 runs in the immediate vicinity of the guide groove 25 receiving the engagement strip 20.

The guide bar 21 is fastened to a connecting web 35 which runs transversely to the glazing plane 17 and which connects it to a profile wall section 36 running parallel to the glazing plane 17. In order to give this connecting web 35 increased bending elasticity, in particular in the direction of arrow 31, but also in the opposite direction, two groove-like cross-sectional constrictions 37 and 38 are provided on its upper side.
The connecting web 35 can also be provided with water drain openings 39 (FIG. 2), so that any condensation water that may form can flow off in the cavity between the wooden frame leg 4 and the shell profile of the protective covering 5. For the same purpose, the transverse web 48 present between the strip band 47 and the outer shell section 45 can also be provided with such water drain openings (not shown in the drawing).

The press insert 30 can have different cross-sectional shapes exhibit. It can be made from a rod, pipe or band-like body made of elastic material. It is preferably made of rubber or the like Material that has a hardness of at least 45 shore A should have.

1, 2 and 3, respectively, press inserts 30 are shown with a cylindrical cross section 4 shows a press insert 30 ', which is a hollow Has cross-sectional profile and also made of rubber or rubber-like material. This cross-sectional profile is the cross-sectional shape of the facing glazing plane 17 adapted tapered cavity 29.

The task of this press insert 30 is about Support strip 28 on the shell profile of the protective lining 5 a clamping force in the direction of arrow 31, that is parallel to the glazing level 17, and exercise the in the drawing below guide bar 21 with the Guide groove 26 to the bottom of the groove 25 '' in engagement hold. On the other hand, it also serves the purpose of Corners of the window frame abutting profile legs to give an opportunity to stretch, in which the press insert 30 in the arrow 31 opposite Can compress direction elastically if in a row a strong temperature increase a material expansion takes place. But it is also in the opposite direction Task of the press insert 30, the clamping force in the direction of arrow 31 to maintain even if one Material shrinkage due to a drop in temperature takes place.

In any case, the pressing force of the press insert, which is effective in the direction of arrow 31, should be so great that it fixes the position sufficiently firmly by force fit and thus a longitudinally rigid connection between the wooden frame leg 4 on the one hand and the shell profile of the protective covering 5 on the other is guaranteed. With suitable press inserts, this position-fixing connection can be achieved in a simple manner and thereby also the advantage that the shell profile of the protective cladding 5 can be mitred at both ends together with the wooden frame leg 4 in the leg length required in each case.
It is therefore no longer necessary to finish the wooden frame and the protective cladding frame separately and to connect them in the finished state.

To the press insert 30 in the cavity 29 one against independent Moving out to give secured seat it is appropriate to this cavity 29 with a open side tapering cross-sectional shape.

It is also advantageous if the cavity 29 in the edge area the insulating glazing 14 is arranged; with that is this cavity 29 for inserting the press insert 30 what yes, before insulating glazing 14 is inserted, easily accessible.

In order to allow the aforementioned temperature-related material expansion and thus a deeper immersion of the guide bar 20 in the guide groove 25, the guide groove 25 lying on the glazing side of the wooden frame leg 4 has a greater depth T1 than the engagement bar 20 guided therein stresses. The required freedom of movement of the guide bar 20 in the guide groove 25 is thereby achieved.

On the other hand, it is also necessary to limit the immersion depth of the guide bar 20 in the guide groove 25 in such a way that the guide bar 21 lying in the drawing below can in no case be moved out of its guide groove 26. Therefore, the depth T1 of the guide groove 25 is selected so that a distance a2 remains between the groove base 25 '' and the lower end of the guide bar 20, which is smaller than the immersion depth T2 with which the second engagement bar 21 projects into its guide groove 26 and 25 '' lies against the bottom of the groove.

The engagement strips 20 and 21 are expediently each provided with an edge bead (thickening) 32 and 33 (FIG. 2), by means of which their thickness d approximately matched to the width w (FIG. 6) of their guide grooves 25 and 26, respectively twice the wall thickness d1 (Fig. 2, Fig. 3) corresponds to the other profile parts. This wall thickness d1 is usually about 1.5 mm.

The shell profile of the protective lining 5 has a profile end strip 40 on, which is opposite the support bar 28 and with this a profile groove 41 for positive Recording a band-like profile seal 42 forms. This profile seal 42 is located with two sealing lips 43 and 44 sealingly on the outside of the glazing 14.

Within an outer shell section 45, which also the Profile section 22 includes, is on the support strip 28th opposite weather side of the engagement bar 20 first narrow strip band 46 arranged in parallel to profile section 22. In the area of the Drawing below end portion 45 'of the outer shell portion 45 is a second on a crosspiece 48 narrow strip band 47 arranged parallel to the End section 45 'runs.

These two strip strips 46 and 47 and the crossbar 48 serve for the positive reception of correspondingly profiled corner connection angles 50. Such a corner connection angle 50 is shown in FIG. 5.
By using such corner connection angles 50, it is possible to obtain exactly flush corner connections between the right-angled miter-cut frame legs of the protective cladding, which can preferably be done by gluing, possibly also by special welding techniques.

The protective cover 8 on the wooden frame leg 7 of the Frame 2 has a double-shell profile an outer shell 55 and an inner shell 56. The Outer shell 55 is through crossbars 57 and 58 with the inner shell 56 rigidly connected. An upper section of the profile 59, which rises obliquely from the outer shell 55 to the glazing plane 17 runs, forms with an approximately L-shaped Profile section 60 a profile groove 61 for receiving a profile seal 62. This profile seal 62 is located with the window closed on the flat outer surface of the Profile wall section 36 of the panel 5 of the window sash on.

On the side of the wooden frame leg facing the window sash 7 an engagement bar 20 'is provided, the one across a crosspiece 65 and two diagonally and diverging mutually extending profile wall sections 66 and 67 with the inner shell 56 of the double-shell shell profile the panel 8 is connected. This guide bar 20 'corresponds functionally to the guide bar 20 of the sash frame cladding 5. It lies in a to the glazing plane 17 parallel profile plane 23 'and protrudes with its thickened edge bead 32, which in Shape and purpose corresponds to that of the engagement bar 20, in a guide groove 25 'of the wooden frame leg 7. This wooden frame leg 7 points to the window sash facing side of a raised ledge 70 a Contact surface 27 '. This bearing surface 27 'forms together with a support bar 28 'that overlaps this a cavity 29 'for receiving the press insert 30.

The press insert 30 does not have to be in one piece over the entire Leg length extend, it can also be in single Sections can be divided at intervals from each other are inserted into the cavity 29 or 29 '.

At the end facing the window sash is the engagement bar 20 'provided with a profile end strip 40', which forms a profile groove 41 'with the support strip 28', in which one on the stop surface 18 of the wooden frame leg 4 adjacent profile seal 62 is attached.

The guide groove 25 'also has a depth T1 which is greater than the engagement bar 20' which is guided in it. There is therefore also a distance a2 between the groove base 25 ″ and the guide bar 20 ′, as is also the case with the window frame leg 1.

At the lower end of the inner shell 56 there is a connecting web 35 ′ which runs transversely to the glazing plane 17 and connects the second engagement strip 21 ′ to the inner shell 56. This engagement strip 21 'lies in a profile plane 24' which is offset in the transverse direction with respect to the profile plane 23 'of the engagement strip 20' or the guide groove 25 '. The engagement bar 21 ', which has the same cross-sectional shape as the engagement bar 21 of the window frame leg 1 and thus also has an edge bead 33, projects into a guide groove 26' which is at a distance a1 ' from the guide groove 25'.

It can be seen from Fig. 1 and Figs. 6 and 8 that the Guide grooves 20 and 20 'are about twice as deep as the guide grooves 21 and 21 '. It should also be noted that wooden frame leg 4 of the window frame leg 1 the Guide groove 21 opposite the guide groove 20 to the glazing level 17 is offset, while wooden frame legs 7 of the frame leg 2, the guide groove 20 ' is closer to the glazing level than the guide groove 21 '. This is due to the fact that with the cladding of the wooden frame leg 4 only one on the window pane adjacent profile seal 42 is present while the Panel 8 of the frame two across the glazing plane 17 strongly offset profile seals 62 available must be and because also the panel 8 of the Frame opposite the panel 5 of the window frame to the outside, i.e. towards the weather side at least slightly should protrude.

The arrangement of a profile seal 42 or 62 immediately above or next to the press insert 30 can this profile seal 42 or 62 with a relatively high Contact pressure against their respective contact surface 18 of the Wooden frame legs 4 or pressed on the window pane become.

The connecting web 35 'is also provided with two groove-like ones Cross-sectional taper 37 and 38 provided him a give certain elasticity, so that the double shell profile the protective cladding 8, at least to a limited extent Extent, also due to expansion or shrinkage Movements parallel to glazing level 17 or can run parallel to the profile levels 23 'and 24'.

Because with the window sash open, especially the lower one Frame frame, from above water in between the area of the two profile seals 62 the protective panel 8 can penetrate, are the oblique Profile wall section 66 and the two crosspieces 57 and 58 each provided with several openings 68 and 69, through which this penetrated water flows down can.

Also with the protective covering 8 of the frame, the Press insert 30 the same task and effect as in the protective covering 5 of the window casement. she serves on the one hand for the elastic position fixation of the Protective covering 8 on the wooden frame leg 7, in one Way that allows the wooden frame leg 7 miter together with the protective cover 8 cut and the at the finished, at least four frame legs joined together at the corners existing frame of the protective covering gives the possibility of their temperature-related expansion and Perform shrinking movements on the wooden frame, without affecting the strength of the connection.

It is important that the guide strips 20 and 21 or 20 'and 21' in their guide grooves 25 'and 26', respectively are performed with a tight fit and nevertheless lengthways in these guide grooves 25 to 26 ' can be inserted. The lengthways of each Frame leg almost rigid connection between the wooden frame leg 7 and the panel 8 achieved by the press insert 30, which is then in the provided cavities 29 and 29 'is used.

Another important advantage is that the in usually protective covers made of aluminum 5 and 8 again relatively easily from the wooden frame legs 4 or 7, if this is for the purpose of disposal should be recycled. It then only needs to be removed the press inserts 30 to the protective coverings 5 and 8 to be able to lose weight.

It should also be mentioned that as press inserts also metallic Spring elements can be used if this is from be necessary or advantageous for special reasons should.

9 and 10 is a schematic representation of how the individual window frame leg 1 using the corner connection angle 50 with their respective miter cut surfaces 72 and 73 or 74 and 75 are put together, to get a corner connection that is flush with the edge. The two are perpendicular to each other Angle legs 51 and 52 of a corner connection angle 50 each end in the shell profiles of the panels 5 positively inserted and the miter cut surfaces 72 to 75 are each preferred in a suitable device, with a suitable Adhesive, firmly and permanently attached to each other.

The frame legs are joined together in a similar manner 2 to a finished frame. In doing so Corner connection bracket 50 'used, made of flat material exist and are profiled so that they are form-fitting fits in between the crossbar 57 and the top Profile section 59 lying cavity 63 of the double-shell Shell profile of the panel 8 with one each of her two legs, which run at right angles to each other 51 'and 52' can be introduced. Are here too the miter cut surfaces 72 'and 45 ° 73 'or 74' and 75 'flush with an adhesive to connect with each other, using a different connection technique, for example suitable welding processes, could be applied.

To between the individual frame legs that are in the corners of the frame with their miter cut surfaces 72 to 75 or 72 'to 75' each meet flat, a stable, permanently resilient connection receive, the miter cut surfaces 72 to 75 or 72 'to 75' of the wooden frame legs of both Casement frame as well as the window frame in each case to be provided with congruent grooves 80, each in closed channels for receiving a press-in, form self-curing connection medium 89 and which each start at an injection opening 87 and at one Vent opening 88 ends.

A suitable connection medium 89 can be, for example a two-component adhesive or a resinous substance is used be who is in the liquid state easily into those of the congruent ones Grooves 80 channels formed evenly distributed, so that this completely with at the end of the press-in process the connecting medium 89 are filled. After curing of the connection medium 89 forms this over the entire Groove length a stable rigid positive connection between those with their miter cut surfaces 72 to 75 wooden frame legs butting each other in pairs 4 of a window sash or the wooden frame legs 7 of the frame.

It is important that the grooves 80 on each Places where air pockets can form with others Vent holes 88 'are provided.

As can be seen from FIG. 15, such a groove 80, which starts, for example, from the press-in opening 87 several longitudinal and transverse sections 81, 82, 83, 84, 85 and 86 exist, so as uniform as possible Distribution of the connection medium over the miter cut surface is achieved. These grooves 80 can for example with an end mill or end mill on a CNC machine according to the surface shape of the respective miter cut surfaces 72 to 75 to. 72 'to 75 'are generated.

It is advantageous if the grooves each have an undercut profile, for example a T-profile 79 according to 16 or a symmetrical trapezoidal profile 78 according to FIG. 17, through which the hardened connecting medium 89 receives a better hold in the grooves 80.

To further increase the connection stability, are the miter cut surfaces 72 to 75 of two abutting Wooden frame legs 4 and 7 each by at least a the miter cut surfaces 72, 73 across penetrating fastening screw 90 interconnected (Fig. 18). It has proven to be advantageous that a fastening screw 90 is used, the has no screw head and the one with a pointed thread is provided, which is at least approximately stretches their entire length. One with wood screws preferred pointed thread creates a high in the wood tensile hold.

It is important that the insertion of these mounting screws 90 is done while the corner connection is located in a corresponding clamping device which the miter cut surfaces 72 and 73 or 74 and 75 firm and immovable under a certain contact pressure be held together. In this state of tension will also become the liquid connection medium 89 pressed into the channels formed by the grooves 80. It is expedient to press-in opening 87 and the vent opening 88 is only clamped in this Generate the condition of the corner connection using a drill namely in the area of the inner corner edge 91 and if possible symmetrical to the plane in which the two miter cut surfaces 72 and 73 pressed together lie.

To escape the liquid that is still liquid during the pressing-in process to avoid or paste-like connecting medium or it is expedient to at least minimize the ventilation opening 88, as well as the other ventilation openings 88 ', with a much smaller diameter too provided as the press-in opening 87.

Claims (23)

Frame profile for the frame and the sash of wood-metal windows or doors, consisting of a wooden frame leg (4, 7) serving as a load-bearing construction element and a weatherproof, single or multi-layered protective covering (5, 8) made of drawn, thin-walled aluminum which is connected to the wooden frame leg by interlocking interlocking connecting elements,
characterized,
that the protective covering (5, 8) has a shell profile with at least two longitudinally extending engagement strips (20, 21), each with a profile section (22, 35, 35 ', 65) extending obliquely or transversely to a glazing plane (17) a certain distance (a1) from each other in a profile plane (23, 24, 23 ', 24') running essentially parallel to the glazing plane (17) and each fitting at least approximately in a form-fitting manner into a guide groove (20, 21, 20 ', 21 ') of the wooden frame leg (4, 7) engage, with a support surface (27, 27') of the wooden frame leg (4, 7) running along a guide groove (20, 20 ') and a support surface (27, 27') overlapping this Supporting strip (28, 28 ') of the shell profile, a groove-like cavity (29, 29') for receiving at least one spring-elastic press insert (30) is formed. Frame profile according to claim 1, characterized in that the engagement strips (20, 21) transversely to the glazing plane (17) are offset from each other. Frame profile according to claim 1 or 2, characterized in that that the press insert (30) from a rod, tubular or ribbon-like body made of elastic material consists. Frame profile according to claim 2 or 3, characterized that the press insert (30) made of rubber or similar material with a hardness of at least 45 shore A exists. Frame profile according to claim 1, characterized in that the support surface (27) and the support bar (28) on the side facing the glazing (14) of the wooden frame leg (4). Frame profile according to claim 1 or 5, characterized in that that the support surface for the press insert in the immediate vicinity of the one receiving the engagement bar Guide groove (25) is located. Frame profile according to claim 1 or 6, characterized in that of the support surface (27) and the support strip (28) formed groove-like cavity (29) a cross-sectional shape tapering towards the open side having. Frame profile according to claim 1 or 7, characterized in that the cavity (29) for receiving the Press insert (30) in the frame legs (1) one Casement in the edge area of the glazing (14) lies. Frame profile according to claim 1, characterized in that the one on the glazing side of the wooden frame leg (4) lying guide groove (25) a greater depth (T1), as the engagement bar guided in it (20) takes. Frame profile according to claim 9, characterized in that the one on the glazing side of the wooden frame leg (4) lying guide groove (25) such a depth (T1) has that between the groove bottom (25 '') and the guide bar (20) remains a distance (a2) is less than the immersion depth (T2) with which the or a second engagement bar (21) in its guide groove (26) protrudes. Frame profile according to claim 9 or 10, characterized in that the engagement strips (20, 21) each have an edge bead (32, 33) through which their thickness ( d ) is matched to the width ( w ) of their guide grooves (25, 26). corresponds approximately to twice the wall thickness ( d1 ) of the other profile parts. Frame profile according to one of claims 1 to 11, characterized characterized in that the shell profile of the Protective covering (5) has a profile end strip (40), which is opposite the support strip (28) and with it a profile groove (41) for positive reception a band-like profile seal (42). Frame profile according to claim 1 or one of the claims 2 to 12, characterized in that within a Outer shell section (45) of the shell profile the side of the support strip (28) opposite the Engagement bar (20) and in the lower end area of this Outer shell section (45) each narrow strips (48, 49) are arranged, the bracket of correspondingly profiled corner connection angles (50) serve. Frame profile according to one of claims 1 to 13, characterized characterized in that one attached to the frame (2) Protective cladding (8) double-skin and provided with two profile seals (62) is, on the one hand a stop surface (18) of the Casement wood frame (4) and on the other hand a profile wall section (36) that are attached to the casement (4) Put on protective cover (5). Frame profile according to claim 14, characterized in that the engagement strip lying on the glazing side via a crossbar with the inner wall of the double-skin shell profile of the cladding (8) is connected. Frame profile according to claim 15, characterized in that the crossbar over two oblique and diverging mutually extending profile wall sections with the inner wall is connected. Frame profile according to one of claims 1 to 16, characterized characterized in that a connecting web (35), the one on the one facing away from the glazing (14) Outside of a wooden frame leg (4, 7) lying engagement strip (21) with a shell wall section (36) connects with at least one lengthways running groove-like cross-sectional constriction (37, 38) is provided. Frame profile according to one of claims 1 to 17, characterized characterized that the miter cut surfaces (72 to 75) each with congruent grooves (80) are provided, each with self-contained channels to hold a press-in, self-hardening Connection medium (89) which form an injection opening (87) start and at a vent (88) end. Frame profile according to claim 18, characterized in that the press-in opening (87) and the vent opening (86) symmetrical to each other in pairs abutting miter cut surfaces (72/73) in the inner Corner (91) of the corner connection are arranged. Frame profile according to claim 18 or 19, characterized in that the grooves (80) in places where Can form air chambers with additional vents (88 ') are provided. Frame profile according to one of claims 18 to 20, characterized characterized in that the grooves (80) each have a Undercut profile, in particular a T-profile (79) or have a trapezoidal profile (78). Frame profile according to one of claims 18 to 21, characterized characterized that the miter cut surfaces (72 to 75) two adjoining wooden frame legs (4) each by at least one of the miter cut surfaces transversely penetrating fastening screw (90) are interconnected. Frame profile according to claim 22, characterized in that the fastening screw (90) is not a screw head and has a pointed thread is that is at least approximately over their entire Length extends.

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