CH705957B1 - Frame corner joint for windows or doors. - Google Patents

Abstract

The invention relates to a Rahmeneckverbindung for windows or doors, with a first and a second wooden frame part (1, 2), which are connected at an angle to each other, that they are arranged in a plan view of a through the two wooden frame parts (1, 2) frame part plane in which at least two pins (5, 6) connected integrally therewith are formed on the first wooden frame part (1), which engage in the second wooden frame part (2) in a form-fitting and / or contour-matched manner, and wherein the first wooden frame part (1) is provided with a frontal abutment surface (1). 3) in a planar contact connection on an associated and a second contact surface forming upper side (4) of the second wooden frame part (2) rests. According to the invention, a first pin (5) and a second pin (6) of the first wooden frame part (1), spaced from the first pin (5) transversely to the frame part plane, each engage in a top (4) associated with these pins (5, 6). pocket-shaped recess (9, 10) of the second wooden frame part (2) introduced into the second wooden frame part (2) and are received therein, wherein the pocket-shaped recesses (9, 10) each have a bottom region (13, 14) facing a journal end side (11, 12) ) and, accordingly, the pins (5, 6) do not pass through the second wooden frame part (2) on the underside (15) of the second wooden frame part (2) opposite the upper side (4).

Description

Description: [0001] The invention relates to a frame corner joint for windows or doors according to the preamble of claim 1.

Such Rahmeneckverbindungen is of essential importance, since the frame usually assumes a supporting or stiffening role in a construction of the window. Such wooden frames must not be forgiven, whereby in addition to the correct choice of wood, above all a professional design and the choice of suitable connection technology for the production of a frame corner connection of straight, oblique or round or curved wooden frame parts arrives. Frame corner joints of windows and doors on wooden sash and frame are currently usually manufactured as follows: As slot and pin connection according to the extremely schematic representation of Fig. 8a and 8b (shown here only for clarity reasons without window or door profiling) in which a first and a second wooden frame part 101, 102 are here connected to each other at right angles, so that they are arranged here in an exemplary L-shape in a plan view of a frame plane spanned by the two wooden frame parts 101, 102, wherein on the first wooden frame part a ( Fig. 8a) and two (Fig. 8b) integrally connected pins 103 are formed, the form-fitting or contour-matched in a second wooden frame part 102 from the top 104 to the bottom 105 through slot 106 engage, in the usual manner in such a way that a smooth, consistently flush Auss side or outer surface 107 is created.

In the fully assembled state, not shown in FIGS. 8a and 8b, the first wooden frame part 101 lies with its frontal contact surface in a planar contact connection on the associated upper surface 104 of the second wooden frame part 102 forming a second contact surface.

Specifically, such a slot and tenon connection is milled with a milling machine and then the two wooden frame parts are glued together. This type of connection involves some production engineering as well as execution disadvantages. In addition to an increased material requirement due to the amount of wood and the edge length compared to, for example, the anchor connections described in more detail below, a frame press is required for the connection of the parts. In addition to corresponding investment costs, this also entails the disadvantage that each frame press is limited in size to its clamping widths. Furthermore, the use of pressing allowances in already pre-profiled profiles an additional workload with increased potential for damage of the individual parts.

Due to the geometry of the tools and the associated slot depth, the possible widths of the frame frieze are also severely limited. If one also considers the ever-increasing use of CNC technology in window and door production and the limited possibilities in terms of tool weight / diameter, the classic slot and tenon connection quickly reaches its limits.

Another common method for producing the Rahmeneckverbindung is shown in FIG. 9 again for clarity without window or door profiling schematically and only by way of example dowel joint shown in the two wooden frame parts 110, 111 in conjunction with corresponding dowels 112 miter and / or countered connected. Thus, in a comparison of the slot and tenon connection already described some disadvantageous properties, such as the increased demand for wood with countered connections, while compensated, but also this type of connection shows some negative aspects: The main drawback and thus the biggest factor in the Depending on the type of automation, this is done for example by means of a Dübeleintreibautomates, a Dübelpistole or manually by the gluing staff. If, depending on the frame corner (depending on the profile), an average of 4 to 5 dowels per frame corner is used, this alone means a workload of at least 32 dowels (four corners each in the sash frame and in the frame) for a single-leaf window with four dowels per frame corner. If this is extrapolated to an annual production, small-sized companies regularly produce six-digit dowel numbers, which are driven into the frame parts individually or according to one of the above-mentioned methods, which obviously represents a high outlay.

Furthermore, in addition to the described work always the type of wood and the length of the dowel must be considered in such a dowel connection. For each purpose suitable sized dowels are needed. This can be summarized to a certain extent in anchor groups. Here, however, limits are quickly reached, depending on the breadth of the production spectrum. The resulting increased storage is additionally increased by the use of various types of wood. Because of these difficulties, in practice often no frame-adapted dowels are used, which in turn leads to a different swelling and shrinkage behavior with a negative influence on the frame corner joint.

Finally, the positive locking and the associated tightness of this dowel connection is often disadvantageous. Because depending on whether and how the individual connection was countered, the parapet of the frame corner can open with appropriate moisture balance, which is disadvantageous in terms of air permeability and moisture influence. If the use of a frame press is required, there are also the disadvantages mentioned above in connection with the slot and tenon connection.

In contrast, it is an object of the present invention to provide a Rahmeneckverbindung for windows and / or doors, which helps to avoid the aforementioned drawbacks.

This object is solved with the features of claim 1. Advantageous embodiments are the subject of the dependent claims.

According to claim 1, a frame corner joint for windows or doors is proposed, which has a first and a second wooden frame part, which are angularly, in particular at right angles, connected to each other, that they are arranged in a plan view of a spanned by the two wooden frame parts frame plane (L-shaped, for example, in the case of a rectangular arrangement of the wooden frame parts), wherein the first wooden frame part at least two integrally connected pins and the second wooden frame part associated recesses are formed, wherein the pins and the recesses contour contoured, and the pins of the first Wooden frame part in the recesses of the second wooden frame part, preferably form fit, engage. In the assembled state of the wooden frame parts, the first wooden frame part lies with a front-side contact surface in a planar contact connection on an associated upper side of the second wooden frame part which forms a second contact surface.

According to the invention it is provided that a first pin and a spaced from the first pin, transverse to the frame plane second pin of the first wooden frame part in each of these pins associated, introduced into the top of the second wooden frame part pocket-shaped recess of the second wooden frame part and at least circumferentially contour adapted are added. The pocket-shaped recesses each have a base area facing a journal face, so that the pins do not pass through the second timber frame portion on the underside of the second timber frame portion opposite the upper side. In other words, that the pins are not visible from the underside of the second wooden frame part opposite the upper side.

With such a structure is a, especially in connection with milled frame parts, easy to produce and stable Rahmeneckverbindung available in which at the same time by the non-continuous pin end grain on the outside of the second wooden frame part is prevented as a counter profile, so that the Susceptibility of the Rahmeneckverbindung to moisture due to increased capillary action can be significantly reduced.

With such an inventive Rahmeneckverbindung also a simple and reliable positional fixation of the wooden frame parts to each other can be achieved. In particular, the effort compared to the production of a dowelled Rahmeneckverbindung can be significantly reduced. The pins themselves can be made solid and dimensioned correspondingly large, so that they have an increased stability, which goes beyond a dowel joint and moves in the region of a slot and pin movement.

A further particular advantage of the invention Rahmeneckverbindung is to be seen in that with the inventive pin an advantageous moisture and Luftdurchlässigkeitsbarriere can be formed, which in particular opens up even closer in connection with the advantageous embodiments of the dependent claims.

Thus, according to a particularly preferred embodiment, it can be provided that at least one of the pins has a cross-sectionally elongated, wall-like shape and, with respect to a plan view of the frame part plane, substantially over the entire connection width of the two wooden frame parts, but at least over 50 %, preferably at least over 70% and most preferably at least over 90% of the connecting width of the two wooden frame parts. Particularly advantageous in this context is a structure in which the wall-shaped pin on the first wooden frame part in its longitudinal extension direction extends to an outer peripheral edge of the Rahmeneckverbindung and accordingly the flush mounted externally second wooden frame part in the region of this pin associated pocket-shaped recess a lateral , has frontal opening. The moisture problem is greatly reduced at this point, since the surface of the end wood compared to the classic compound is only a fraction.

With such a wall-shaped pin thus substantially over the entire connection width of the two wooden frame parts, with respect to the plan view of the frame plane, a substantially over the entire connection width continuous moisture and Luftdurchlässigkeitsbarriere be formed, in particular with such pins, which form, with reference to an installation position of a window or a door, an outer, weather-side arranged pin.

A particularly simple threading allows a pin configuration, in which the wall-shaped cross-section pin is rounded at its free end face, in particular has a rounded cross-section. This also helps, for example, when threading the pin, compensate for any tolerance inaccuracies or a jamming of the mating connections advantageous. In addition, this results in a significant manufacturing advantage, since the rounding can already be milled during the slot process and thus no additional operation is necessary.

According to another particularly preferred inventive embodiment of the present invention idea, there is the possibility that at least one of the pins provided on the foot side with a raised support web and / or is formed, which is assigned to the second wooden frame part a Stützstegausnehmung, in which the support web form-fitting and / or contour adapted engages. With such a support bar can be made particularly stable and torsion-resistant connections of the two wooden frame parts. Such a raised support bar can be produced by milling, for example, and can additionally also assume a moisture and air permeability barrier function in an advantageous dual function. In this context, it is then preferably provided that the support web, viewed in plan view of the frame part plane, extends over at least a partial region of the connection width of the two wooden frame parts. Particularly preferred is a structure in which the support web in conjunction with the associated pin extends at least over 50%, preferably at least over 70%, more preferably at least over 90% of the connection width of the two wooden frame parts. In addition, such a support web design is characterized by a reduced material requirement compared to a conventional slot and pin connection.

As the inventor-side experiments have shown, it is particularly advantageous that the pin is formed as a circumferentially rounded round pin and / or flattened at its top. Because this results in no over-determinations of the mating connection in connection for example with a rectangular cross-section having a support bar.

According to a particularly preferred specific embodiment, it is proposed that, in connection with a window or a door, which separates an interior from an external environment, with respect to the installation position external, weather-side arranged pin and / or an inner, arranged on the interior side Pin, as the foot-side provided with a raised support web and / or trained pin is formed. Such a Rahmeneckverbindung has proven particularly advantageous for windows or doors, which are designed as wood-aluminum windows or wood-aluminum door and have an aluminum outer shell. Such a configuration is particularly preferred in the case of a wood-aluminum window or a wood-aluminum door, in which or in which the aforementioned outer-side aluminum shell exercises a glass holding function or no glass strip is provided.

According to a further particularly preferred concrete alternative embodiment may be provided in conjunction with a window or a door, or an interior of an external environment, but also provided that one of the pins, preferably one with respect to the mounting position outer, weather side arranged pin, as one, an elongated, wall-like shape exhibiting pin is formed, as previously described in detail, while another of the pins, preferably with respect to the installation position inside, arranged on the inside pin, as a foot side with a raised support web formed or trained pin, as described above, is formed. In particular, with such a structure of a Rahmeneckverbindung arise the advantages described above and can be advantageously avoided the disadvantages of the prior art.

According to a further particularly preferred embodiment of the present invention idea is provided that the two wooden frame parts in the region of Glasfalzes and / or along the Glasfalzbereiches (transverse to the frame part plane) each having a transition in the contact surface miter surface and thus connected there miter are. Through such a miter connection over the length of the glazing rebate area, it is possible to work with different internal profilings and variable glazing depths when using the frame corner connection according to the invention, without having to mow a counterpoint specifically for each profile or every depth. Such a mitred joint is particularly suitable in connection with wood-aluminum windows or wood-aluminum doors, which have an outer aluminum shell.

In order to build or exert a desired high Verleimdruck when connecting the wooden frame parts, according to another particularly preferred embodiment of the invention may be provided that the two wooden frame parts are connected to each other by means of at least one additional screw. Such a screw is preferably flush with the surface in the screw head receiving wooden frame part. As a result, and in particular by the positive fit of the pin a frame press with all its described negative accompanying aspects is no longer needed. Both pressing allowances and a limitation in the size ratios of a frame press are eliminated in this type of frame corner connection according to the invention by simple horizontal mounting on, for example, assembly tables.

As already mentioned above, the inventive Rahmeneckverbindung is suitable for both wing and frame of windows and / or doors.

The invention will be explained in more detail with reference to a drawing. Show it:

1 schematically and in perspective in an exploded view of a first embodiment of an inventive Rahmeneckverbindung,

2 shows a schematic inside view of the wooden frame parts of FIG. 1 during the mating,

3 is a schematic rear view corresponding to the arrow A of FIG. 2,

Fig. 4a is a rear view corresponding to FIG. 3 in the assembled state with connecting screw and without

Supporting web,

4b is a representation corresponding to FIG. 4a with support bar,

5 is a plan view of the frame part level with lifting the connection width,

6 is a perspective view of a first wooden frame part of an alternative embodiment,

FIG. 7 shows the second timber frame part belonging to the first wooden frame part according to FIG. 6 and forming a counterpart, FIG.

8a, b two different views of a slot and tenon connection according to the prior art, Fig. 9 is a dowel joint according to the prior art.

1 shows schematically and perspectively in an exploded view a first wooden frame part 1 and a second wooden frame part 2, which for the production of a finished frame corner joint (FIG. 5) are here connected in such a way, for example, at right angles (or obliquely), in that they are arranged in an L-shaped manner on the plan view plane shown in FIG. 5 on a frame part plane spanned by the two wooden frame parts 1, 2. The shown frame corner joint can be used for both casement and frame of windows and / or doors.

In the mounted state of the frame corner joint shown in FIG. 5, the first wooden frame part 1 is located with an end-face contact surface 3 in a two-dimensional abutment connection on an associated top surface 4 of the second wood frame part 2 forming a second abutment surface.

As can be seen in particular from Fig. 1, are on the first wooden frame part, two integrally connected thereto, produced by, for example, CNC milling pins 5, 6 are provided, which are spaced apart in a direction transverse to the frame part plane. The first pin 5 here has an elongated, wall-like shape and extends, with respect to a plan view of the frame part plane according to FIG. 5, substantially over the entire connection width V of the two wooden frame parts 1,2 and thus forms in particular as, relative to an installed position a window or door, external, weather-side arranged pin an excellent Luftdurchlässigkeits- and moisture barrier.

Specifically, here extends the wall-shaped first pin 5 on the first timber frame part 1 in the longitudinal extension direction of the pin 5 as far as an outer peripheral edge 7 of the Rahmeneckverbindung. Furthermore, the first pin is rounded at its free end face, so that it forms a rounded cross-section. Such a rounding can for example be generated in conjunction with a CNC milling machine simply by a side milling cutter.

The spaced from the first pin transverse to the frame part plane, preferably inner or inside space arranged second pin 6 of the first timber frame part 1 is provided on the foot side with a raised, here exemplified a rectangular cross-section supporting web 8, which also here from the second pin 6, starting up extends to the outer peripheral edge 7 of the frame corner joint.

The two pins 5, 6 each engage in a pocket-shaped recess 9, 10 of the second wooden frame part 2 which is assigned to the upper side 4 of the second wooden frame part 2 and is contour-adapted therein at least circumferentially.

The second pin 6 itself is formed as a rounded circular pin circumferentially and flattened here at its top.

As can be seen in particular from the synopsis of Figs. 1,3, 4a, 4b and 5, the pocket-shaped recesses 9, 10 each have a pin end face 11, 12 facing bottom portion 13, 14, so that the pin 5, 6 do not pass through the second wooden frame part 2 on the underside of the second wooden frame part 2 opposite the upper side and thus the pins are not visible from the underside 15 of the second wooden frame part opposite the upper side 4.

1, the first recess 5 associated with the first recess 9 is formed so that it opens at the end face 16 of the second timber frame part 2 in a lateral, frontal opening 17.

1, the second recess 10 further comprises a support web 8 exactly associated, groove-shaped Stützstegausnehmung 19, which also extends to the end face 16 of the second timber frame part 2 and there in an end face Opening 18 opens.

Now, if the two wooden frame parts 1, 2 connected to each other, as shown schematically in Figs. 2 and 3, the two pins 5, 6 engage in the correspondingly associated recesses 9, 10 and are then so long in these recesses inserted positively and contour adapted until the frontal contact surface 3 of the first wooden frame part 1 comes to rest on the upper side 4 of the second wooden frame part 2. In the course of insertion of the two pins 5, 6 then also the pin-side support web 8 comes into engagement with the Stützstegausnehmung 19, which is not shown in the illustrations of FIGS. 2 and 3 for reasons of clarity.

Claims (10)

Fig. 4b shows the assembled state in which very well the locking engagement of the support web 8 in the Stützstegausnehmung 19 and the latching engagement of the first pin 5 in the first recess 9 can be seen. As already mentioned, the Stützstegvorsehung is optional, so that when leaving such a support bar 8, a connection is achieved, as shown in Fig. 4a. As can further be seen in FIGS. 4a and 4b, the two wooden frame parts 1, 2 can also be connected or pressed together by a screw connection 20 located in the region between the two pins 5, 6 (viewed transversely to the frame plane) For example, to apply the necessary gluing pressure. As is shown only schematically, such a screw 20 is preferably flush with respect to the screw head 21 in the bottom 15 of the second timber frame part 2 a. The associated frame part-side screw hole 25 is shown for example in FIG. 2. Finally, FIGS. 6 and 7 show wood frame parts 1, 2 of a second embodiment according to the invention, in which the two wooden frame parts in the region of a glazing rebate or along a glazing rebate area (viewed transversely to the frame plane) each have a transition into the contact surfaces 3, 4 Gehrungsfläche have 22,23 and thus mitred there are connected. In contrast to the embodiment according to FIGS. 1 to 5, in this case the inner first pin 5 'does not extend to the outer peripheral edge 7 of the frame corner joint (cf. FIG. 5), but is a raised, pedestal-like one Provided support bar 8, which is associated with a corresponding Stützstegausnehmung 19 on the second wooden frame part 2. The support web recess 19 or the support web 8 extends here as far as the outer peripheral edge 7 of the frame corner joint, so that a good moisture barrier and air permeability barrier is formed by the journal in conjunction with this support web recess 19 or the support web 8 engaging therein. Otherwise, the structure of the frame corner joint of this second embodiment corresponds to that of the first embodiment described in connection with FIGS. 1 to 5, that is, at least one screw 20 may be provided to the two wooden frame parts 1, 2 together to press firmly. claims 1. Rahmeneckverbindung for windows or doors, with a first and a second wooden frame part (1, 2), the angle, in particular at right angles, are connected to each other that arranged in a plan view of a through the two wooden frame parts (1,2) spanned frame part plane are, wherein at the first wooden frame part (1) at least two integrally connected pins (5, 6) and the second wooden frame part (2) associated recesses are formed, wherein the pins (5, 6) and the recesses are contour-matched, have a free end face and engage in the recesses of the second wooden frame part (2), wherein the first wooden frame part (1) rests with an end abutment surface (3) in a planar contact connection on an associated upper surface (4) of the second wooden frame part (2) forming a second abutment surface, characterized in that a first pin (5) and one of the first pin (5) transversely to the frame part plane beabstan Determining the second pin (6) of the first wooden frame part (1) in each of these pins (5, 6), in the top (4) of the second wooden frame part (2) introduced pocket-shaped recess (9, 10) of the second wooden frame part (2) engage and therein circumferentially contour adapted, wherein the pocket-shaped recesses (9, 10) each have a pin end face (11, 12) facing the bottom region (13, 14). 2. Rahmeneckverbindung according to claim 1, characterized in that at least one of the pins (5) has a wall-like elongated shape in cross-section and, with respect to a plan view of the frame part plane, at least over 50%, preferably at least over 70%, more preferably at least about 90%, most preferably substantially over the entire connection width (V) of the two wooden frame parts (1,2) extends. 3. Rahmeneckverbindung according to claim 2, characterized in that the wall-like, elongated cross-section pin (5) on the first wooden frame part (1) in the connection width (V) of the two wooden frame parts (1, 2) seen up to an outer peripheral edge ( 7) of the frame corner joint and, accordingly, the second wooden frame part (2) connected flush therewith in the region of the pocket-shaped recess (9) assigned to this pin (5) has a lateral, end-side opening (17). 4. Rahmeneckverbindung according to claim 2 or 3, characterized in that the wall-like, elongated cross-section pin (5) is rounded at its end face, in particular has a rounded cross-section. 5. Rahmeneckverbindung according to any one of the preceding claims, characterized in that at least one of the pins (5, 6) on the side facing away from the end face with a raised, preferably having a rectangular cross-section supporting web (8) on the second wooden frame part (2) a Stützstegausnehmung (19) is assigned, wherein the support web (8) and the Stützstegausnehmung (19) contour-adapted and the support web (8) engages in the Stützstegausnehmung (19), wherein it is preferably provided that the support web (8), Seen in the plan view of the frame part plane, over at least a portion of the connection width (V) of the two wooden frame parts (1,2) extends, preferably in conjunction with the associated pin (5, 6) at least over 50%, preferably at least about 70%, more preferably at least over 90% of the connection width (V) of the two wooden frame parts (1,2) extends. 6. Rahmeneckverbindung according to claim 5, characterized in that the pin (5, 6) is designed as a verrun-ver determined pin, which is flattened at its top. 7. Rahmeneckverbindung according to claim 5 or 6, characterized by a reference to the mounting position outer weather-side arranged and / or an inner room side arranged pin (5,6) which is provided on the foot side with a raised support web (8), wherein the Rahmeneckverbindung preferred for a wood-aluminum window or a wood-aluminum door is provided, most preferably provided for a wood-aluminum window or a wood-aluminum door, in which or in which an external aluminum shell exerts a glass holding function. 8. Rahmeneckverbindung according to one of claims 2 to 4 and according to claim 5 or6, characterized in that one of the pins (5), preferably a relation to the mounting position external, weather-side arranged pin, as a, a cross-sectionally elongated, wall-like shape exhibiting Pin is formed. 9. Rahmeneckverbindung according to any one of the preceding claims, characterized in that the two wooden frame parts (1,2) transversely to the frame part plane have a Glasfalzbereich with a Glasfalz extending along the Glasfalzbereiches and each one in the contact surface merging miter surface (22, 23) and are connected to each other mitred. 10. Rahmeneckverbindung according to any one of the preceding claims, characterized in that the two wooden frame parts (1,2) are additionally interconnected by means of at least one screw connection (20).