EP0754810B1 - Corner joint for single block construction - Google Patents

Abstract

The constructional system is esp. for a sauna. The corner-side end faces of superposed planks (1) of a first structural side have at least two vertically extending parallel spaced tongues. The corner side sections of superposed planks (2) of a second structural side, pointing in the direction of the first structural side, have two spaced vertical and parallel grooves (7) acting as counter-profiles so that the tongues can fit tightly in the grooves. The distance between the inside of the tongues in relation to the thickness of the plank supporting it is in the area of 27.5 to 94.0 %. When viewed from above the upper planks stand at an angle of 0.5 to 180 deg. to the planks of the second side.

Description

The present invention relates to a corner connection for Buildings constructed in block construction, for example for Saunas, garden houses, winter gardens as well as changing and Bathing cabins.

Buildings constructed in block construction, in particular saunas, are known from the prior art, in which the cohesion of the individual horizontal logs is brought about by vertical tensioning devices. A multitude of continuous threaded rods runs vertically through the horizontally aligned, stacked block planks, and locking nuts engage at their upper and / or lower ends. The pressure with which the individual logs are pressed against one another can be set using these adjusting nuts.
After the first use of a sauna, the planks shrink by approx. 2-3 cm at a sauna height of 2 m or even change their position in the dressing. In this case, the adjusting nuts must be tightened in order to bring the horizontal planks together tightly. Retightening the adjusting nuts is also necessary when changing from summer to winter. Because in the summer months a sauna is usually hardly used. During this time, the planks absorb moisture and at least swell somewhat. In the colder season, however, a sauna is heated regularly, whereby the planks release the moisture absorbed during the summer months and shrink or warp. This creates gaps between the planks lying on top of each other.
The same also applies to saunas, for example in holiday homes or weekend houses, which are not constantly inhabited and are rarely heated.
Tightening the adjusting nuts is cumbersome and takes a considerable amount of time.

It is also a corner connection for block construction Buildings known in which the face of a horizontal Screed has a vertically running spring, the in a likewise vertical groove further horizontal provided at right angles to the first screed Screed intervenes. The width of the spring is there usually about 1 cm. Compared to the usual The thickness of the planks (approx. 5 cm) represents the thin spring thermal insulation is a clear weak point. The heat transfer coefficient K is due to the thin spring greatly increased in the corner area This poor insulation effect makes up for an increased energy requirement, that is, noticeable by increased operating costs.

From EP-A 0312 482 is a corner connection for block buildings known in which the end face of a horizontal Screed has two vertically running springs, which in two lateral grooves, also vertical, one further horizontal provided at right angles to the first screed Intervene screed. Several across the corner like this connected plank layers are there for erection of a block construction provided loosely one above the other.

With pronounced changes in air humidity it happens there with the formation of gaps slightly to lift off the plank layers from each other, provided the plank layers are not by means of Clamping screws are pressed vertically against each other. The contact area also embodies between two superimposed ones Planks there under the aspects of mechanical Resilience is a weak point.

In addition, there are corner connections for buildings constructed in block construction, which are milled out and worked on combing. The ends of the horizontal planks to be connected overlap there and protrude one above the other, the overlaps being tied up by a carpenter.
Such corner connections have the disadvantage, on the one hand, that the protruding beams protruding from the side lead to a considerable increase in the installation footprint. In addition, these protruding beams on the sides create a considerable risk of injury. After all, the protruding beams on the sides represent a waste of the valuable natural product wood that is hardly acceptable nowadays.

The main disadvantage of such corner connections is however, in that the inner leg of the U-shaped Milling a poor lateral guidance or Experiences locking. Because of this essentially U-shaped Discard or twist the milling the planks in the corner area. By this warping the screed easily forms joints and consequently to a drastic increase in the heat transfer coefficient K, always with an increased Energy requirements go hand in hand.

Known corner connections for block construction Buildings are also disadvantageous because the planks often crack open parallel to the core or cracks form. As a result, the heat transfer coefficient K the planks and those necessary for the operation of the sauna Energy costs increased.

Another disadvantage of emerging from the prior art Corner connections for block construction Buildings is that through this a restless Overall impression is created.

This is particularly the case with composite frame components with vertical Guide frame parts and horizontal filling planks the case. Because the sauna is a place of relaxation and should be calm, this disadvantage comes in a special Weight too.

From US-A-3440784 is a profile wall without a corner connection which are made from planks lying loosely one above the other consists. Each screed has two on its top springs extending horizontally and parallel to each other as well on their underside two are horizontal and parallel mutually extending grooves. Such planks are stacked the tongues engage in the grooves.

With pronounced changes in humidity it also happens there with the formation of gaps slightly to lift off the plank layers from each other, provided the plank layers are not by means of Clamping screws can be clamped vertically against each other. become.

The contact area also embodies between two superimposed ones Screeds also under mechanical aspects Resilience is a weak point.

The object of the present invention is therefore to provide a corner connection for a block construction Buildings that have no retightening fixture needs, despite different moisture content no gaps in the ambient air or planks or is subject to leakage, the contact area between two superimposed planks mechanically special is resilient, whose heat transfer coefficient in Corner area and in the plank area essentially each other correspond and are very small, which is the footprint not essential about the actual cabin dimensions also enlarged from which no risk of injury that does not waste wood in the form of brings overhanging planks on both sides, their planks do not jump open or form cracks and some calm, relaxing overall impression of block construction built buildings.

According to the invention we perform this task in a generic Corner connection through the in the characteristic part of the Features specified claim 1 solved. Particularly preferred embodiments are the subject of Subclaims.

Abbildung 1 eine schematische, perspektivische Ansicht einer erfindungsgemäßen Eckverbindung für in Blockbauweise erstellte Bauten von schräg oben,

Abbildung 2 eine schematische Seitenansicht einer erfindungsgemäßen Eckverbindung für in Blockbauweise erstellte Bauten,

Abbildung 3 eine schematische Draufsicht auf eine erfindungsgemäße Eckverbindung.

An embodiment of the invention will be described with reference to the drawings. Show it:

Figure 1 is a schematic, perspective view of a corner connection according to the invention for buildings constructed in block construction from diagonally above,

Figure 2 is a schematic side view of a corner connection according to the invention for buildings constructed in block construction,

Figure 3 is a schematic plan view of a corner connection according to the invention.

According to Figure 1 comprises a corner connection according to the invention at least two planks (1,2), one plank for example one front screed (1) and the other can be a side screed (2).

The planks (1,2) can be aligned with each other in this way be that the end face (3) of one plank (1) at least partially on the outer, lateral section (4) of the other screed (2) engages. When looking at it from above the planks (1,2) close an angle in the area from 0.5 to 180 °, preferably from 10 to 170 °, in particular from 20 to 160 °. Because of this pronounced Flexibility is the corner connection according to the invention even usable for buildings that are confined and adapting angled room conditions such as mansards are.

On the end face (3) of a screed (1) are at least two vertically running springs (5) are provided. Preferably are in the two edge areas of the end face (3) a screed (1) two clearly spaced and vertical springs (5) running parallel to each other.

The thickness of the planks (1,2) is usually in the range from 1.0 to 40 cm, preferably from 2.0 to 30 cm, in particular from 3.0 to 15 cm. Based on the thickness of the planks (1,2) the strength of the springs (5) is in the range of 3 up to 45%, preferably from 10 to 30%, in particular from 15 to 25%. The depth of the springs (5) is related to the thickness of the planks (1,2), in the range from 5 to 70%, preferably from 8 to 50%, in particular from 10 to 30%.

Also based on the thickness of the planks (1,2) the distance (6) between the insides of the springs (5) in usually in the range of 27.5 to 94%, preferably from 35 to 85%, especially 50 to 75%. This big one Distance (6) comes within the scope of the present invention special importance because it is also a head start of the overlying counter profile defined, the strength of which excellent thermal insulation value of the screed wall in the Joint area decisively determined.

The vertically running springs (5) fit snugly vertical grooves (7) on the mounting location and the alignment corresponding to the springs (5) on a lateral, outer section (4) of a further, screed (2) to be connected to the first screed (1) are provided. Due to the precise design of the double spring (5) and the double groove (7) results in one absolute tightness of the corner connection. Because the springs (5) are U-shaped are surrounded by the grooves (7) and fit snugly in these are observed, despite pronounced Temperature and humidity fluctuations over one no warping of the springs (5) for a long time and thus no gaps. The heat transfer coefficient K becomes kept remarkably small because of both the strong Springs (5) and the one enclosed between the springs (5), the distance (6) corresponding, if possible wide head start of the additional screed to be joined (2) unhindered heat transfer through the corner connection oppose.

Even a possible air gap between the end face (3) of one plank (1) and the projection (6) of the other plank (2) would serve as additional insulation due to the sealing seal between the grooves (7) and the springs (5) Reduction of the heat transfer coefficient K contribute.
Accordingly, the corner connection according to the invention is particularly suitable for saunas in long-term unheated rooms such as garden or weekend houses or damp cellar vaults.

As can be seen in particular from Figure 3, with the aid of the corner connection according to the invention, screeds (1, 2) can be tightly connected to one another at corners, with no outstanding screed protrusions on the sides. If desired, the short overhang of the screed (2) shown in Figure 3 can even be dispensed with entirely. However, a short overhang of a screed (2) with a length of 1 to 2 cm can be of considerable benefit as a spacer to the masonry surrounding the cabin.
Because there is no protruding plank overhang, it is possible to use the corner connection according to the invention and to erect it in block construction in the immediate vicinity of the masonry, thereby minimizing the space required. In addition, this measure leads to a very welcome saving of wood today. A risk of injury due to protruding planks protruding from the side is also excluded.

To create a particularly lasting connection between the connected by means of double groove (7) and double spring (5) Bringing planks (1, 2) can be a solvent-free one, for example Glue before inserting the spring (5) be placed in the groove (7). Additionally or alternatively for this it is possible to form grooves (7) and tongues (5) in dovetail shape, that is to design wedge-shaped, so that their base areas at least in a plan view have a beveled flank, for example on the front, the opening of the groove (7) in the direction of to taper screed (1). In this case can, for example, simply use a screed on the front (1) a side plank (2) can be connected by above the spring (5) of the screed (1) in the front groove (7) of the screed tapering in the direction of the screed (1) (2) introduces. With such a dovetail-shaped It is not the formation of groove (7) and tongue (5) possible to close the tongue (5) horizontally from the groove (7) pull. Removal of the spring (5) from a dovetail Groove (7) is only through an upward Displacement of the tongue (5) in the groove (7) can be reached.

In a particularly preferred embodiment, a permanent connection between the corners to be connected Planks (1,2) that are already on the grooves (7) and Springs (5) are engaged by the action of Dowels (8) or screws used in their place. Figure 3 is a top view of one embodiment the corner connection according to the invention with Dowels (8) shown. The dowel (8) is preferably after the groove (7) and tongue (5) and an exact alignment of the planks (1,2) by a aligned, adapted to the dimensions of the dowel (8) Bore (9) inserted into the planks (1,2) to be connected. The bore (9) is viewed from above for example at right angles to the longitudinal axis (10) of the screed (2) aligned with groove (7) and extends across the screed (2) with groove (7) and in alignment at least partially in the corner connection side section of the screed (1) with spring (5).

When viewed from above, the bore (9) in the corner connection-side section of the screed (1) with the spring (5) preferably runs between the outer, vertical springs (5) parallel to the longitudinal axis (11) of this screed (1) in the direction the opposite end of the screed (1).
The depth of penetration of the bore (9) into the corner connection-side section of the screed (1) with spring (5), based on the thickness of the screed (1), is in the range from 50 to 200%, preferably from 60 to 180%, in particular from 70 to 140%. The diameter of the bore (9), also based on the thickness of the planks (1,2), is in the range from 5 to 50%, preferably from 7 to 40%, in particular from 10 to 30%.

After the dowel (8) has been inserted, use a cover cap or a decorative head (12) Hole (9) to be closed to the outside.

The dowel (8) used is preferably around a wooden dowel with a diameter of 14 mm and a length of 100 mm, using a white glue or an environmentally friendly, non-evaporation glue that especially no formaldehyde, phenol, isocyanate or Releases solvent, is glued.

If the corner connection according to the invention can be dismantled is desired, there is the possibility of simple Drilling out these wooden dowels (8) open.

However, instead of dowels (8) Screws used. Suitable screws are for example Wood screws, drywall screws or Spax screws. Also the use of turnbuckles commonly used in furniture making instead of dowels (8) is conceivable.

Of particular importance for the corner connection according to the invention is the vertical orientation of the mounting locations the dowel and the vertical alignment of the planks (1,2) to each other. This is particularly evident from Figure 2, which is a schematic, partially sectioned side view represents a corner connection according to the invention.

An essential feature of the corner connection according to the invention is that the planks (1, 2) to be connected via a corner are not at the same height, that is to say that when the planks (1, 2) are of the same height, their undersides and their tops are not when viewed from the side are each at the same height. The planks (1, 2) to be connected at the corners are rather each vertically offset by half a plank height. The result of this is that, for example, the joint between two side planks (2) lying one above the other comes to lie in the middle of a front plank (1), while the joint between two front planks (1) lying one above the other lies in the middle of a side plank (2 ) comes to rest.
Such a vertically offset arrangement of the planks to be connected at a corner leads on the one hand to the advantage that the at least somewhat weakened joint between two superimposed planks undergoes extreme mechanical stiffening. On the other hand, it is possible in this way to achieve absolute tightness even in the immediate corner area, which cannot be negatively influenced by temperature or humidity fluctuations.

Finally, by the one shown in Figure 2 Choice of the locations of the dowels (8) or the other Place the screws or latches used very simple and inexpensive way to be prevented that the planks (1,2) warp or even in the bandage change their location, taking into account those required in the prior art Clamping devices with threaded rods and Locking nuts is dispensed with. The one shown in Figure 2 preferred embodiment of the invention Corner connections are those to be connected via corners Planks (1,2) vertically offset by half a plank height, so that the joint between two side planks (2) when viewed from the side in the middle of a frontal Screed (1) comes to rest. Just above and below the joint between the side planks (2) one horizontally aligned dowel (8) across the planks (2) with the side grooves (7) and ends as described above, in the corner end of the front Screed (1). The dowels (8) hold the two side ones Planks with a specified, precisely adjustable Contact pressure and effectively prevent the formation of joints in the area of the joint between the side Planks (2).

It goes without saying that the above explanations for the dense cohesion of one above the other frontal planks (1) apply accordingly.

In order to ensure optimal and permanent tightness of the joints of superimposed side planks (1) and front planks (2), a water-repellent profile that opens downwards can be provided in the respective joint area. This has, for example, a cross section which essentially corresponds to an upside down letter U, V or W.
A groove (13) with an essentially U-shaped cross section is preferably provided on the upper side of the lower screed (1, 2) and extends on the upper side of the lower screed (1, 2) parallel to its longitudinal axis. A tongue (14), which is precisely adapted to the U-shape of the groove (13), runs along the underside of the upper plank (1,2) parallel to its longitudinal axis and engages the planks (1,2) in the laid-on state sealing the groove (13). This avoids lateral deflection of the spring (14).

The side flanks (15) of the groove (13) are symmetrical bevelled downwards. The bevel angle α of the flanks (15) is in the range from 15 to 80 °, preferably from 20 up to 70 °, in particular from 35 to 60 °, starting from the Screed outer wall towards the inside of the screed.

The side flanks (16) of the spring (14) are a counter profile to the side flanks (15) of the groove (13) and also inclined symmetrically downwards. The bevel angle β of the flanks (16) is in the Range from 12 to 79.7 °, preferably from 17 to 69.7 °, in particular from 32 to 59.7 °, starting from the outer wall of the screed towards the inside of the plank.

The beveling of the side flanks (15, 16) downwards causes liquids running along the screed wall, for example, formed during a steam bath Condensate or rainwater on the outside of the planks drain off and cannot penetrate them.

Of course it is possible to set the angles α and β to choose each other accordingly. In particularly preferred Embodiments of the corner connection according to the invention however, the angles β are at least somewhat smaller than that Angle α selected. The difference between the angles α and β is in the range from 0.1 to 10 °, preferably from 0.8 to 7 °, in particular from 0.9 to 5 °.

The smaller angle β compared to the larger angle α leads to the advantage that when exposed to an increased Contact pressure on the overhead screed (1,2) Lateral flank (16) of the spring protruding downwards (14) like an elastic lamella on the flank (15) of the Groove (13) lies sealingly and, if necessary, at least something is spread outwards. Even if the Contact pressure is reduced or the screed height due to drying out the screed should take off, it would still not come to form a gap or joint in the outermost areas of the flanks (15, 16). Because if necessary spread flanks (16) of the spring (14) in this case sliding into their originally intended spring back not spread shape and still sealing with the outer area of the flanks (15) of the groove Complete (13).

Another advantage of the smaller compared to the angle α Angle β is that in the inner area of the planks (1,2) between the flanks (15,16) if necessary small air space (17) is formed by the lowest Sections of the lamellar flanks (16) of the spring (14) is sealed to the outside. This included Air volume (17) provides optimal thermal insulation represents due to a reduction in the heat transfer coefficient K of the joint makes a considerable contribution to reduce energy or operating costs embodies.

As can be seen in Figure 2, the side flank falls (15) of the groove (13) preferably not directly on the top Edge of the groove (13) starting at the bevel angle mentioned above α downwards. Rather, the top edge goes the groove (13) towards the outside first in a substantially horizontal guide (18) to which the downward Connect the beveled flanks (15) to the outside. The Width of this horizontal guide (18) is based on the thickness of the planks (1,2), in the range from 0.5 to 20%, preferably from 1 to 15%, in particular from 3 to 10%. The advantage of essentially horizontal guidance (18) lies especially in avoiding damage otherwise the sharp-edged upper edge of the groove (13) during the transport of the planks (1,2). In addition, a possible chipping of the edges and a related Risk of injury avoided. Finally, the horizontal guide (18) a particularly simple and quick insertion of the tongue (14) into the groove (13) as it a jamming of otherwise protruding wood fibers and counteracts the like.

It goes without saying that the spring (14) supporting Counter profile starting at the upper ends of the spring (14) also one to the lower horizontal guide (18) corresponding, essentially horizontal upper May have guide (19), which faces outwards connect the flanks (16) falling downwards.

It is also obvious that this type of connection of stacked planks for side planks (2) and front planks (1) is equally suitable. Self adjacent planks can in this way dense cohesion.

It is also of particular importance that the outermost and deepest sections of the flanks (16) of the spring (14) supporting counter profile a beveled edge, the means have a chamfer (20). As can be seen in Figure 2, the chamfer (20) is designed so that the bevel begins higher on the outside of the screed (2) and descending towards the flank (15) of the Groove (13) extends. The length of the beveled edge of the Chamfer (20) is considered when considering the joint cross-section kept as small or as short as possible.

The chamfer (20) has the advantage that a possible chipping the lowest sections of the flanks (16) and an associated risk of injury is avoided. The fact that the chamfer (20) is made very small has an effect with regard to the insulation value as well as one calm, harmonious overall impression of the plank wall cheap. The small chamfer (20) also remains in the Area of the screed transitions almost the full wall thickness obtained, which achieves a high thermal insulation value and energy costs are reduced. In addition, the small chamfer (20) for a smooth transition between the Screeds (1,2) and thereby gives the screed wall particularly quiet design.

This calm design of the plank wall is underlined by that even in the corner area of the invention Corner connection none at right angles to the longitudinal axis of the Frame construction aligned on top of each other is required. The viewer is shown in accordance with the invention designed buildings either uniform horizontally or uniformly vertically aligned Planks (1,2). It will not be like the buildings of the State of the art a nervous, restless checkerboard pattern generated; rather, an even, calm, provides a relaxing and restful overall impression.

It is obvious to the person skilled in the art that the particular Vertical double groove shown in Figure 3 (7) not only one above the other in the lateral end section arranged planks (1,2), but also for example in a vertical or sloping corner pillar as well provided in a window or door frame or the like can be. The double springs (5) then engage in there attached vertical grooves (7). Even the lock the planks (1,2) by means of dowels (8) or on their The screws used are in case of use for example a continuous, vertical support element easily possible.

Moreover, it is obvious that the invention Corner joint not just at one end of a horizontal one Screed (1,2), but be provided at both ends can. In this case, the screed (1,2) is tapped on both sides.

For sealing between the lowest planks (1,2) and the Floor can be inside the cabin and / or on the outside a skirting board or wiper strip attached to the cabin become.

For the production of the planks to be connected over corners (1,2) In principle, any type of wood can be used. However, fir and spruce are preferred as well as pine and larch wood for buildings that are outdoors be set up for use. Particularly preferred are Canadian hemlock, Nordic spruce and Arctic spruce (Picae excelsa).

The logs can be made from the inner heartwood as well also from the constituent parts of a trunk surrounding it getting produced. Because heartwood is a strong one Tendency to form parallel to the longitudinal axis of the core However, heartwood is not preferred used. In particularly preferred embodiments come planks from fine-grained woods Annual rings (rifts) are used.

Claims (13)

1. A corner connection for buildings erected by means of modular construction with at least two tongues (5) being provided running parallel to one another at a distance and continuously extending vertically over the areas facing the corner (3) of stacked beams (1) of a first side of a building and at least two grooves (7) are provided running vertically parallel to one another at a distance as a formfitting counter profile to said at least two tongues (5) in the sections of stacked beams (2) of a second building side facing in the direction of the first building side at the lateral corner side with the tongues (5) inserting tightly into the grooves (7), characterized in that the beams (1) of the one building side is vertically off-set by half a beam height in respect to the beams (2) of the other building side.
2. A corner connection according to claim 1, characterized in that the distance (6) of the interior sides of the tongues (5) is in the range of 27.5 to 94.0 % in relation to the thickness of the beam (1) carrying the tongues (5).
3. A corner connection according to claim 1, characterized in that, when viewing the stacked beams (1) from above, the first building side is positioned at an angle of 0.5 to 180 ° in relation to the second building side.
4. A corner connection according to one of the claims 1 through 3, characterized in that the tongues (5) are held in the grooves (7) non-positively and tightly by means of a glue free of solvents and/or the nuts (7) and grooves (5) are embodied in the shape of a dovetail on one side only or on both and/or by plugs (8) and/or by bolts or nails used instead.
5. A corner connection according to one of the preceding claims, characterized in that closely above and closely below the contact point between two stacked beams (2) with lateral grooves (7) of the one building side a plug (8) each positioned horizontally or a screw used instead thereof runs perpendicularly through the beams (2) with the lateral grooves (7) and ends in the section facing the corner of the beams (1) of the other building side carrying the tongues (5) on its face with the plug (8) or the screw used instead inserts essentially into the beam (1) carrying the tongues (5) in the center between the tongues (5) viewed from above.
6. A corner connection according to one of the preceding claims, characterized in that the vertical grooves (7) running parallel to one another at a distance (6) are provided in a carrying element standing essentially perpendicularly, a door jamb or a window jamb and are opened in the direction of the beams (1, 2) to be connected and that the tongues (5) insert tightly into the grooves (7) provided there.
7. A corner connection according to one of the preceding claims, characterized in that a hydrophobic profile open downwards is provided in the contact region between two stacked beams (1, 2).
8. A corner connection according to claim 7, characterized in that a hydrophobic profile opening downwards includes a groove (13) on the top of the lower beam (1, 2) having an essentially u-shaped cross section which extends parallel to the longitudinal axis of the lower beam (1, 2) and a tongue (14) on the bottom of the upper beam (1, 2) extending parallel to the longitudinal axis of the upper beam (1, 2) and whose dimensions are adjusted to those of the groove (13) with the tongue (14) inserting tightly into the groove (13) in the stacked position of the beams.
9. A corner connection according to claim 7 or 8, characterized in that the lateral flanks (15) of the groove (13) are sloped symmetrically downwards with the sloped angle α of the flanks (15) being in the range of 15 to 80 ° and the lateral flanks (16) of the tongue (14) are symmetrically sloped diagonally downwards as well forming an opposite profile to the lateral flanks (15) with the sloped angle β of the flanks (16) being in the range of 12 to 79.7 °.
10. A corner connection according to one of the claims 7, 8, or 9, characterized in that the sloped angle α is equivalent to the sloped angle β or that the sloped angle α is larger than the sloped angle β by 0.1 to 10 °.
11. A corner connection according to one of the claims 7 through 10, characterized in that the upper edge of the groove (13) initially transforms outward into a lower horizontal guidance (18) with flanks (15) sloped downwards following outwards and that the upper edge of the tongue (14) transforms outward initially into an upper horizontal guidance (19) as an opposite profile to the lower horizontal guidance (18) and the downwards sloped flanks (16) follow outwardly.
12. A corner connection according to one of the claims 7 through 11, characterized in that the outermost and lowest positioned sections of the flanks (16) of the opposite profile supporting the tongue (14) are provided with a bezel (20) whose slope begins at the exterior side of the beam (1, 2) at a higher position and extends downwards in the direction of the flank (15) of the groove (13) with the length of the sloped bezel (20) being as short as possible when viewing the cross section of the contact point.
13. A use of the corner connection according to one of the claims 1 through 12 for erecting buildings by means of modular construction.

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