EP1286015A1 - Corner connection 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 a corner connection for a frame profile of wood-metal windows or doors from a supporting structural element Wooden frame legs (4, 7) and a weather-side, from drawn, thin-walled aluminum existing one or multi-layer protective cladding (5, 8) by positive interlocking connecting elements with 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 to fit 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.

With all these known frame constructions only the aluminum profiles retrofitted to the wooden frame mitred at the corner joints. The wooden frames themselves are given corner connections the conventional slot-and-pin connections, in which both ends of the legs with the known tongue and groove profiles are provided, which are put together and with each other glued, sometimes also doweled. With these Corner connections is not only a considerable preparatory work for the production of the connection profiles, which are milled separately have to be afforded, but so are Rework required. But above all, it is not possible, the wooden frame legs with the aluminum protective cover to be provided before making these corner connections processed and the corner connections made and post-processed. Leave the wooden frame legs therefore not by simple miter cuts from one profile bar available by the meter cut or saw off with the required length.

The invention has for its object a corner connection for frame profiles of the type mentioned at the beginning create a simpler manufacture of the frame profiles allow yourself and which are easier to manufacture are. In particular, it should be possible to use the wooden frame profiles and the protective cover is almost ready to use put together before making the corner connections are.

This object is achieved in that the wooden frame legs connected at the corners Have miter cut surfaces, each with congruent grooves are provided, each in closed channels for receiving a press-in, form self-hardening connecting medium, which an injection opening.

The main advantage of the design according to the invention the corner connection is achieved can be seen in that a connection strength can be achieved with it is that so far only with the known tongue and groove interventions could be guaranteed, which is a prerequisite for the ends of the wooden frame legs through mitred surfaces put together and connect with each other. By this possibility is also significant in terms of manufacturing technology Advantage achieved with the wooden frame legs themselves their cross-sectional profile available by the meter and with the same length aluminum profile to provide existing protective cladding. Of such a wooden frame leg profile, possibly several meters long, on which the aluminum protective cover in the same length is already attached, can for a Windows or a glass door required frame legs exactly with the desired length using a miter cut be cut off. Then you are already there ready for making the corner joints, i.e. to Manufacture of a window or door frame available.

It is therefore no longer necessary to use the wooden frame and the shell profile frame of the protective cladding separately in to produce the required length and subsequently to connect separately. You achieve it a considerable ease of work and a cheaper one Production method.

Claims 2 to 9 relate to advantageous refinements the invention.

The embodiment of claim 2 is a complete The channels are filled with the connecting medium considerably favored by the design according to Claim 5 in this regard an increase in the safety factor is achieved.

The configurations according to claims 3 and 4 ensure that the openings become invisible to the outside when the glass panes are inserted.
Small vent openings in accordance with claim 6 can prevent undesirable leakage of the initially flowable connecting medium.

With the groove profiles, which are useful according to claim 7 the bond strength can be increased considerably become.

While the screw provided according to claim 8 results in an additional increase in bond strength the use of a fastening screw without Screw head according to claim 9 the provision of a small, easily concealed screw hole.

Overall, the configurations of claims 1 to 4 serve 9 the achievement of lasting stability and resilience Corner connections between each with miter cut surfaces colliding frame legs.

Fig. 1

einen Horizontalschnitt durch den vertikalen Rahmenschenkel eines verglasten Fenster- oder Türflügels mit außenseitigem Schalenprofil aus Aluminium und einem Eckverbinderwinkel;

Fig. 2

in einer Schnittdarstellung entlang der Schnittlinie II-II aus Fig. 1 drei auf Gehrung geschnittene Holzrahmenschenkel eines Fenster- oder Türflügels;

Fig. 2a

einen Eckverbinderwinkel für das Schalenprofil des Holzrahmenschenkels eines Fensterrahmens;

Fig. 3

in Schnittdarstellung einen Holzrahmenschenkel eines Blendrahmens mit außenseitigem Schalenprofil aus Aluminium und mit einem eingesetzten Eckverbinderwinkel;

Fig. 4

in einer Schnittdarstellung nach der Schnittlinie IV-IV aus Fig. 3 drei auf Gehrung geschnittene Blendrahmenschenkel mit zwei Eckverbinderwinkeln;

Fig. 4a

einen Eckverbinderwinkel für das Schalenprofil des Holzrahmenschenkels eines Blendrahmens;

Fig. 5

in perspektivischer Darstellung einen Fensterrahmenschenkel mit Blick auf eine Gehrungsschnittfläche;

Fig. 6

einen Schnitt VI - VI aus Fig. 5;

Fig. 7

die gleiche Schnittdarstellung wie Fig. 6, jedoch mit einem anderen Nutenprofil und

Fig. 8

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 vertical frame leg of a glazed window or door wing with an outer shell profile made of aluminum and a corner connector angle;

Fig. 2

in a sectional view along the section line II-II of Figure 1, three miter-cut wooden frame legs of a window or door wing;

Fig. 2a

a corner connector angle for the shell profile of the wooden frame leg of a window frame;

Fig. 3

in a sectional view of a wooden frame leg of a frame with an outer shell profile made of aluminum and with an inserted corner connector angle;

Fig. 4

in a sectional view along the section line IV-IV of Figure 3 three miter-cut frame legs with two corner connector angles.

Fig. 4a

a corner connector angle for the shell profile of the wooden frame leg of a frame;

Fig. 5

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

Fig. 6

a section VI - VI of Fig. 5;

Fig. 7

the same sectional view as Fig. 6, but with a different groove profile and

Fig. 8

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 of a wooden 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, i.e. outside protective cladding 5, which consists of a single-shell, drawn, thin-walled formwork profile made of aluminum.

In Fig. 3, a frame leg 2 is shown in section. The frame leg 2 shows as a load-bearing Construction element also a wooden frame leg 7 on the weather side also with a, from a drawn, thin-walled shell profile made of aluminum, but provided double-skin protective cladding 8 is.

The in the usual way with a rollover bar 10 (Fig. 1) on an inner surface 11 (FIG. 3) of the frame leg 2 or its wooden frame leg 7 adjacent wooden frame leg 4 of the window frame leg 1 is with a Glazing bead 12 provided by means of a rubber seal 13 rests on the inside of insulating glass 14. On the side facing the frame leg 2 is the wooden frame leg 4 in the usual way with a Fitting rebate 15 and a fitting groove 16, the fitting rebate 15 on the weather side on a parallel to the middle glazing level 17 running stop surface 18 ends.

The one-shell profile Protective covering 5 of the window frame leg 1 has two engagement strips each running in the longitudinal direction 20 and 21 on. The engagement bar 20, the weather side extends outside the insulating glazing 14, protrudes form-fitting and free of play in the transverse direction a guide groove 25 of the wooden frame leg 4.

The protective covering 5 is by means of a spring elastic Press insert 30 positively and non-positively on the wooden frame leg 4 attached.

The press insert 30 can have different cross-sectional shapes exhibit. It can be made from a rod, tube 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.

The second engagement bar 21 protrudes from the opposite, i.e. from that facing away from the insulating glazing 14 Side of the wooden frame leg 4 into a guide groove 26, which are also parallel to the glazing plane 17 extending profile level.

This can be fixed in position with suitable press inserts 30 Achieve connection in a simple way and thereby also the advantage that the shell profile of the protective cover 5 in the assembled state together with the Wooden frame legs 4 in the required leg length can be mitered at both ends.

It is therefore no longer necessary to use the wooden frame and the protective trim frame separately in each required length to be completed and first separately to assemble into frames so that they can be finished connect with each other.

The shell profile of the protective covering 5 has a profile groove 41 for the positive reception of a band-like Profile seal 42 on. This profile seal 42 lies with two sealing lips sealing on the outside of the glazing 14 on.

The protective cover 8 on the wooden frame leg 7 of the blend frame 2 has a double-shell profile with a Outer shell 55 and an inner shell 56 through Cross bars are rigidly connected to each other. An upper one Profile section 59 is provided with a profile seal 62, the one with the window closed on the flat outer surface of the profile wall section 36 of the panel 5 of the Window sash is present.

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 with the inner shell 56 of the double-shell profile Cover 8 is connected. This guide bar 20 ' corresponds functionally to the guide bar 20 of the casement trim 5. It lies in one, to the glazing level 17 parallel profile level and protrudes with its thickened bead 32, the shape and purpose corresponds to that of the engagement bar 20, in a Guide groove 25 'of the wooden frame leg 7.

As shown in Fig. 3, the panel 8 is also by means of a Press insert 30 attached to the wooden frame leg 7.

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 used.

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 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 cover 8 gives the possibility of their temperature-related expansion and Perform shrinking movements on the wooden frame, without affecting the strength of the connection.

In Fig. 2 is shown schematically how the individual each from a wooden frame leg 4 and one on this attached protective cladding 5 existing window frame legs 1 using the corner connector bracket 50 with their respective miter cut surfaces 72 and 73 and 74, respectively and 75 are put together to make each one flush Get corner connection. The two of them right-angled leg 51 and 52 of a corner connector angle 50 at each end in the shell profiles of the cladding 5 fit in a form-fitting manner and the miter cut surfaces 72 to 75 each preferably in a suitable device, with a suitable adhesive, firmly together and inextricably linked.

The frame legs are joined together in a similar manner 2 to a finished frame. In doing so Corner connector 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 of the double-shell Shell profile of the panel 8, each with one of them two legs 51 'running at right angles to one another or 52 'can be introduced. Here, too, are below 45 ° miter cut surfaces 72 'and 73' or 74 'and 75' flush with each other by means of an adhesive to connect using other connection techniques, for example, suitable welding processes could become.

To between the individual wooden frame legs 4 and 7, those 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 The miter cut surfaces are intended to maintain connection 72 to 75 or 72 'to 75' of the wooden frame legs both the casement frame and the Cover frame each with congruent grooves 80 to provided, each of the self-contained channels for Inclusion of a press-in, self-hardening connection medium 89 form. In the illustrated embodiment these channels each start at an injection opening 87, and they each end at a vent 88th

A suitable connection medium 89 can be, for example a two-component adhesive or a resinous substance is used be 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 pressing 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 or 72 'to 75' in pairs colliding Wooden frame legs 4 of a window sash or the wooden frame legs 7 of the frame.

Depending on the working method, it can be important that the Grooves 80 at the locations where air chambers form can, provided with further ventilation holes 88 ' are.

As can be seen from FIG. 5, 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 6 or a symmetrical trapezoidal profile 78 according to FIG. 7, 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 one the miter cut surfaces 72, 73 across penetrating fastening screw 90 connected to each other (Fig. 8). It has proven to be advantageous that a fastening screw 90 is used, which none Has screw head and with a pointed thread is provided, which is at least approximately over their entire Length extends. This is preferred for wood screws Pointed thread creates a high tensile strength in the wood Stop.

It is important that the insertion of these mounting screws 90 takes place 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 the 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.

When the press-in opening 87 and the vent opening 88 arranged in the inner corner edge 91 in the area of the glazing are, it is possible to use them with the Conceal glazing.

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.

If the grooves are straight or slightly curved and channels are provided, can be inserted or pressed in of the connecting medium is a flexible tube used, which is inserted deep into the canal at the beginning and slowly pulled out in the course of filling becomes. This filling technique can be used on ventilation openings to be dispensed with.

Claims (9)

Corner connection for frame profiles of wood-metal windows or doors, consisting of a wooden frame leg (4, 7) serving as a load-bearing structural element and a weatherproof, single or multi-layered protective covering (5, 8) made of drawn, thin-walled aluminum, which is form-fitting interlocking connecting elements are connected to the wooden frame leg,
characterized in that the wooden frame legs (4, 7) connected to one another at the corners have miter cut surfaces (72 to 75) which are each provided with congruent grooves (80), each of which has self-contained channels for receiving a press-in, self-hardening connecting medium (89 ) form which begin at a press-in opening (87). Corner connection according to claim 1, characterized in that the channels formed by the grooves (80) each end at a ventilation opening (88). Corner connection according to claim 1, characterized in that the press-in opening (87) is arranged symmetrically to the miter cut surfaces (72/73) which abut in pairs in the inner corner (91) of the corner connection. Corner connection according to claim 2, characterized in that the ventilation opening (88) is arranged symmetrically to the miter cut surfaces (72/73) which meet in pairs in the inner corner (91) of the corner connection. Corner connection according to Claim 2 or 4, characterized in that the grooves (80) are provided with further ventilation openings (88 ') at locations where air chambers can form. Corner connection according to one of claims 2, 4 or 5, characterized in that the ventilation openings (88, 88 ') have a smaller cross-section than the press-in opening (87). Corner connection according to one of claims 1 to 6, characterized in that the grooves (80) each have an undercut profile, in particular a T-profile (79) or a trapezoidal profile (78). Corner connection according to one of Claims 1 to 7, characterized in that the miter cut surfaces (72 to 75 or 72 'to 75') of two mutually abutting wooden frame legs (4, 7) each have at least one miter cut surface (72 to 75 or 72 ' to 75 ') transversely penetrating fastening screw (90) are interconnected. Corner connection according to claim 8, characterized in that the fastening screw (90) has no radially widened screw head and is provided with a pointed thread which extends at least approximately over its entire length.

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