DE202012102709U1 - Building panel with a device for connection to at least one further building panel on a substrate - Google Patents

Abstract

Building panel with a device (100) for connection to at least one other similar building panel on a substrate (11), the building panel being intended to be lowered against a building panel that has already been laid, the building panel (1.1, 1.2) in each case first opposite and second, profiled side surfaces (8.1; 8.2), on each of which a joint surface (7.1, 7.2) is arranged which is perpendicular to a useful surface (6) or base surface (26) of the construction panel, - the joint surface (7.1) of the first side surface (8.1) merges into a first groove (9) running along the side surface of the construction panel (1.1), - a locking arm (14) projects beyond the abutment surface (7.1) of the first side surface (8.1) of the construction panel (1.1), - the locking arm (14) terminates in a lip (15) directed towards the usable surface (6), which in turn has an inner surface (17) extending into a base (35) of the locking arm (14), - the first groove (9) is opposite the abutment surface ( 7.1) of the first ...

Description

• – das Baupaneel jeweils gegenüberliegende erste und zweite profilierte Seitenflächen aufweist, an denen je eine Stoßfläche angeordnet ist, die senkrecht zu einer Nutzfläche bzw. Basisfläche des Baupaneels liegt,
• – die Stoßfläche der ersten Seitenfläche in eine entlang der Seitenfläche des Baupaneels verlaufende, erste Nut übergeht,
• – über die Stoßfläche der ersten Seitenfläche des Baupaneels ein Verriegelungsarm hinausragt,
• – der Verriegelungsarm in eine zur Nutzfläche gerichtete Lippe ausläuft, die wiederum eine in einen Boden des Verriegelungsarms auslaufende Innenfläche aufweist,
• – die erste Nut einen gegenüber der Stossfläche der ersten Seitenfläche zurückversetzten Nutboden aufweist,
• – in die erste Nut des Baupaneels ein länglicher, wenigstens teilweise flexibler, separater Verbinder wenigstens teilweise eingelassen ist, der im verlegten Zustand der Baupaneele mit der zweiten Seitenfläche eines gegenüberliegenden Baupaneels zusammenwirkt,
• – der Verbinder einen etwa dachrinnenförmigen Querschnitt aufweist und eine wenigstens teilweise bogenförmige, aus einem Basisteil und einem Schenkel bestehende Wandung besitzt,
• – die Wandung mit einer wenigstens teilweise teilzylindrischen oder teilelliptischen Innenfläche an einer Kante dieser Innenfläche – im Querschnitt des Verbinders gesehen – in ein Kopfstück und an einer anderen Kante in einen Fuß übergeht,
• – der Fuß eine nach außen gerichtete, im eingesetzten Zustand der Innenfläche der Lippe zugewandte Seitenfläche und eine sich an die Seitenfläche anschließende Standfläche aufweist,
• – das Kopfstück des Verbinders im eingesetzten Zustand des Verbinders in Richtung Nutzfläche zeigt,
• – der sich an das Basisteil anschließende Schenkel, der in das Kopfstück ausläuft, im eingesetzten Zustand des Verbinders beweglich angeordnet ist, so dass beim Zusammenfügen von Baupaneelen der Schenkel mitsamt Kopfstück in Richtung des Nutbodens verschwenkt werden kann,
• – die zweite Seitenfläche ein Verriegelungselement aufweist, welches beim Zusammenfügen zweier Baupaneele in den von der Innenfläche des Verbinders aufgespannten Innenraum des gegenüberliegenden Baupaneels eingreift,
• – das Verriegelungselement in eine in Richtung Basisfläche offene Ausnehmung des Baupaneels übergeht,
• – der Boden des Verriegelungsarms und die erste Nut sowie die Innenfläche der Lippe einen Sitz für die Unterbringung des Verbinders bilden,
• – und wobei das Kopfstück im in die erste Nut eingepassten Zustand des Verbinders wenigstens teilweise gegen eine erste Nutflanke der besagten Nut drückt.

The invention relates to a building panel with a device for connection to at least one other similar building panel on a substrate, wherein the building panel is intended to be lowered against an already laid building panel, wherein

• The building panel has in each case opposite first and second profiled side surfaces, on each of which an abutment surface is arranged, which is perpendicular to a useful surface or base surface of the building panel,
• The abutting surface of the first side surface merges into a first groove extending along the side surface of the building panel,
• Protrudes over the abutment surface of the first side surface of the building panel a locking arm,
• - The locking arm terminates in a surface facing the effective surface, which in turn has an expiring in a bottom of the locking arm inner surface,
• The first groove has a groove bottom offset from the abutment surface of the first side surface,
• - In the first groove of the building panel, an elongated, at least partially flexible, separate connector is at least partially inserted, which cooperates in the installed state of the building panel with the second side surface of an opposite building panel,
• The connector has an approximately gutter-shaped cross section and has an at least partially arcuate wall consisting of a base part and a limb,
• The wall having an at least partially partially cylindrical or partly elliptical inner surface at an edge of this inner surface, seen in the cross-section of the connector, merges into a head piece and at another edge into a foot,
• - The foot has an outwardly directed, in the inserted state of the inner surface of the lip facing side surface and a subsequent to the side surface footprint,
• - shows the head piece of the connector in the inserted state of the connector in the direction of usable area,
• - The leg adjoining the base part, which terminates in the head piece, is movably arranged in the inserted state of the connector, so that when assembling building panels of the legs can be pivoted together with the head piece in the direction of the groove bottom,
• - The second side surface has a locking element which engages when joining two building panels in the plane defined by the inner surface of the connector interior of the opposite building panel,
• - The locking element passes into a recess open towards the base surface of the building panel,
• The bottom of the locking arm and the first groove and the inner surface of the lip form a seat for accommodating the connector,
• - And wherein the head in the fitted state in the first groove of the connector at least partially presses against a first groove flank of said groove.

A building panel with such a facility is off WO 2008/004960 known. In a semicircular recess of an already laid building panel is according to 6a to 6d an approximately boomerang-shaped, rocking-type connector is used, which is moved by a counter-panel under leverage until a thicker edge of the connector - seen in cross-section of the panel connection - einspringt in an edge-compatible groove of the Gegenpaneels. The separate connector has the task to ensure the locking of the building panels substantially perpendicular to the tread. The task of horizontal locking takes over in a conventional manner, the locking arm with his lip. Although the known connector has an additional, directed to the Gegenpaneel own lip, but this provides only for a reinforcement of the existing horizontal locking. A disadvantage of the known device is that the connector can relatively easily fall out of the attachment in the groove before assembly of both building panels, especially if the material of the connector is resilient. The stability of the compound seems to be insufficient.

DE 20 2009 004 530 U1 describes floor panels with coupling parts which form a horizontally and vertically active locking system comprising a separate connector made of a coextruded plastic strip having areas of different properties and more particularly different flexibility, one area of the connector being a hinge which forms the connector into a base part with a foot and a head piece directed to the bottom of the panel. The disadvantage is that the connector, in particular its foot when mounting the connector can fall out of its seat relatively easily.

In DE 102 37 397 A1 different embodiments of an elastic, one- or two-part connector are shown with hollow chambers, which resembles a window sealing profile. In addition, the 5 to derive an anchor-like, consisting of two parts connector, in which a projecting over a side surface of a panel center web, called punch, engages in an inner space of a pressed into a groove of a second panel in C-shaped head. The profiled ones Side surfaces of the two interconnected panels extend substantially obliquely to the tread surface of the panels, wherein the coupled parts of the connector are directed perpendicular to the side surfaces. Both parts of the connector are constructed mirror-symmetrically to its longitudinal axis. A disadvantage of a thus configured panel connection with two-piece connector according to 5 is that a subsequent separation of the interconnected floor panels is not feasible. Also, a connection of the floor panels together or their laying on a surface seems to be problematic because mounting in the horizontal direction using the known impact block impossible and mounting with pivotal movement is particularly difficult.

at WO 00/47841 A1 It is, inter alia, an inserted into a groove of the floor panel elastic profile, which has directed to its interior, angled edge regions. Also, this version of the profile hides the risk that it can also fall out of his seat relatively easily.

In addition, several versions of other rocking connectors are known.

The object of the invention is to develop an alternative generic device for connecting polygonal, plate-shaped building panels together with the help of separate connectors that do not act like a rock and whose hold on the building panel is safe and stable.

• – der Fuß des Verbinders mit seiner Seitenfläche und mit seiner Standfläche sowie das dem Boden zugewandte Basisteil des Verbinders die besagte Innenfläche der Lippe und den Boden des Verriegelungsarms vor und nach dem Zusammenfügen zweier Baupaneele wenigstens teilweise kontaktieren,
• – wobei die Lippe des Verriegelungsarms sich in Richtung Bodenschicht derart verjüngt, dass die Innenfläche der Lippe unter einem spitzen oder rechten Winkel zum Boden des Verriegelungsarms bzw. zur Basisfläche des Baupaneels geneigt ist,
• – und wobei das Verriegelungselement wenigstens eine ebene Andrückfläche aufweist, die bei der Verbindung zweier Baupaneele gegen das Kopfstück stößt, so dass das Kopfstück in Richtung Nutboden verschwenkt wird.

This object is achieved by a device of the type mentioned, in which

• - The foot of the connector with its side surface and with its footprint and the bottom-facing base part of the connector at least partially contact the said inner surface of the lip and the bottom of the locking arm before and after the joining of two building panels
• Wherein the lip of the locking arm tapers towards the bottom layer such that the inner surface of the lip is inclined at an acute or right angle to the bottom of the locking arm or to the base surface of the building panel,
• - And wherein the locking element has at least one flat pressing surface which abuts against the head piece in the connection of two building panels, so that the head piece is pivoted in the direction of groove bottom.

The similarity between the connectors according to the invention and conventional, such as semicircular or partially elliptical gutters can be justified by the fact that the head of the connector corresponds approximately to the drip edge of the gutter and the foot facing away from the drip edge of the gutter gutter.

In addition, the building panel, which is pivoted down against the already laid down, referred to as Gegenpaneel. The terms such as "top", "top", "bottom", "bottom", "below", "above" etc. refer to the laid on a foundation building panels, as shown in the drawing. Furthermore, the separate connector is referred to as a profile.

In the device according to the invention is approximately to those which includes a so-called hook connection, in which normally the hook-connecting parts: lip on the locking arm and directed to the ground locking element of the Gegenpaneels should be tightly hooked together and the abutting surfaces of the two building panels to be brought into surface contact with each other to secure the locking of the building panels in the horizontal direction. For the known solution according to WO 2008/004960 This condition can be met even if the connector is removed from the groove. The separate connector according to WO 2008/004960 lies outside the surfaces that form the actual hook connection.

It is not to be overlooked that the hook connection in the solution according to the invention comes about only after the joining of the two building panels, by the web-shaped foot being located between the inner surface of the lip and the locking element engaging in the connector when assembling the building panel. Should the connector be removed, there can be no hook connection because of the resulting gap. In this position, the two building panels would not be secured to each other before moving in both horizontal and vertical direction. Of great advantage is that the profile according to the present invention can ensure a lock at the same time in both directions.

Preferably, the separate connector according to the invention is made of plastic. Plastics for the connector include thermoplastics such as polyethylene (PE), polypropylene (PP), polystyrene (PS), polyamides (PA), polycarbonates (PC), polyethylene terephthalate (PET), and the like. a., And so-called engineering plastics, such as styrene copolymers (ABS), polyamides (PA), polycarbonates (PC), polyethylene terephthalate (PET), polymethylmethacrylate (PMMA), polyoxymethylene (POM), fluoroplastics (Teflon), polyurethanes (PUR) in question.

The foot of the profile can be ridge-shaped and / or massive, being of vital importance is that this has an inwardly inclined side surface which is at least partially in contact with the inner surface of the lip - in the inserted state. Thus, the angle of inclination of the side surface of the foot to its footprint may correspond to said sharp angle at the lip. If the inner surface of the lip is arranged at right angles to the bottom of the locking arm or to the base surface of the building panel, the foot can press with its lower part against the said inner surface. Thus, the foot and the lower part of the mounted connector almost form-fitting, before and after the lowering of the Gegenpaneels rest on the locking arm.

The connector may have at least one outwardly extending projection extending in the longitudinal direction of the connector in a transition region of its base part to the movable leg. The projection may be in the inserted state of the connector in contact with the groove flank of the second groove.

The profile can also be made of so-called integral plastics. Such a profile may for example have a hard foot and a relatively soft, adjoining the head leg. In this case, the head piece and the foot can be made stiffer than the legal material of the profile. The profile can have smooth and / or roughened surfaces.

Furthermore, the profile can be made of metal, wood material or composite.

The profile may be elastically deformable at least in its leg region. The elasticity of the profile may be assisted by corresponding constrictions or gentle transitions of the leg to the foot.

The head piece may have a strip-shaped, planar, in the inserted state of the first groove flank facing pressure surface, which in turn in a - in cross-section of the profile seen - downward, oblique or rounded sliding surface continues.

Preferably, the first, upper groove flank of the groove for receiving the profile runs parallel and the second, lower groove flank obliquely to the useful or base surface of the building panel, wherein the lower groove flank merges into the bottom of the locking arm. The two groove flanks close to a perpendicular to the effective surface arranged groove bottom of said groove. So configured groove has enough space for pivoting the head piece. The flat pressure surface of the head piece remains in the non-caused by the lowering counter panel, tensioned state in surface contact with the upper groove flank or presses against them.

The bottom of the locking arm is preferably parallel to the base surface and then forms a support surface for the foot and for the lower part of the wall of the connector. To accommodate a massive foot whose flat footprint extends wider than that of the web-shaped foot, in particular a flat or stepped floor is suitable.

At the bottom of the locking arm, at least one groove parallel to the groove may be incorporated, which is preferably located approximately in the center of the floor, in any case outside the lower inclined groove flank. At the trough, the lower part of the inserted profile, so its base part can be supported. For the einmontierte profile according to the invention thus applies the principle of at least three contact surfaces of this profile with the lower building panel, namely with the inclined inner surface of the lip, with the bottom of the locking arm and with the upper groove flank of the first groove. This set profile sits securely on the side surface of the lower building panel and has little chance to solve independently.

In a particularly advantageous embodiment of the invention, four contact surfaces of the profile with the lower building panel are provided, wherein the fourth contact surface is formed by a projecting from the profile, resilient web or at least one down, resilient tongue in the inserted state against the lower , oblique groove edge of the first groove presses. As a result, an even more stable position of the accommodated in the seat profile is achieved.

When the building panel is pivoted downwards in the direction of the floor of the already laid building panel, the head piece can exert a rotary movement about the recess or a gradation of the floor of the locking arm. Thus, the leg of the profile is pivoted. In this case, the foot of the connector can remain immobile in its position on the inner surface of the lip and the base part of the profile.

The profiles can be pressed into the existing groove of the building panel manually or mechanically or with the aid of an automatic machine. The building panels provided with the profiles can be stored and distributed in this form.

If the profile is made of plastic, it can be cheaply made available as a mass-produced article.

The profiles according to the invention are essentially intended for the narrow edges of the building panels. However, even in the longer side surfaces of the building panels may be integrated if they are adapted to the separate connector accordingly.

It is advantageous if a pressure surface arranged obliquely opposite the useful surface is introduced on the locking element located on the counter panel, with which pressure is exerted on the flat pressure surface, but especially on the rounded or bevelled sliding surface of the head piece. The oblique pressing surface of the downward locking element is at an angle ≥ 45 °, preferably 60 ° relative to the effective surface. This angular size ensures optimum sliding of the locking element on the head piece, without the head piece can fall out of the seat.

The rounded surface of the locking element may transition into a recessed with respect to the upper abutment surface of the building panel slope, such that a sharp, approximately V-shaped transition for receiving the head piece is formed.

However, the head piece can also engage in a groove of the structural element carrying the locking element. Preferably, the groove is approximately rectangular or trapezoidal.

It is advantageous that the rounded surface of the locking element passes over an obliquely or perpendicularly arranged with respect to the useful surface, flat surface in the downwardly open recess of the locking element supporting the building panel. In this case, a strip-shaped inner surface of the upper part of the foot can be provided, which is compatible with the said flat surface.

As such, the building panels can be made of plastic, metal, wood-based material, paper or other renewable raw materials, such as cork. The building panels can be made in solid or layered construction, such as known HDF or MDF panels, and have a wood or tile decor, which is covered with at least one layer of a transparent or translucent synthetic resin. The building panels may be equipped with antibacterial and / or fire retardants.

The building panels can be used as floor panels, as wall cladding panels or as furniture parts.

Embodiments of the invention are explained in more detail with reference to the drawing. The figures show:

1 and 2 two building panels each in the area of their side surface, without connectors, each in a section,

3 and 4 each a building panel with inserted connector, in two positions of the head piece, each in a section,

5 to 7 two building panels each with inserted connector, in three positions of the swiveling building panel, each in a section,

8th a connector in a first embodiment, in the cross section of the profile,

9 according to the connector 8th in a perspective view;

10 a connector with a solid foot, in cross-section of the profile,

11 a variant of the in 8th represented connector, also in the cross section of the profile,

12 another connector, with a solid foot, in cross-section of the profile,

13 according to the connector 12 , arranged between the lip and the lateral groove of a building panel, in one cut,

14 another connector with solid foot, in cross-section of the profile,

15 according to the connector 14 , arranged between the lip and the lateral groove of a building panel, in one cut,

16 laid building panels according to 1 and 2 but without connector, in one cut;

17 and 18 another connector, with beveled ends of the header, in a plan view of a side surface of his foot and in a profile-facing side view of the connector;

19 according to the connector 17 and 18 in a perspective view;

20 and 21 according to the connector 17 and 18 without chamfered ends of the header, in a plan view of a side surface of its foot and in a profile-facing side view of the connector;

22 according to the connector 20 and 21 in a perspective view;

23 a connector with a projection lying in the transition region of its base part to the leg, in the cross-section of the profile,

24 according to the connector 23 in a perspective view,

25 two interconnected building panels with inserted connector according to 25 in one cut,

26 a connector with a different projection, in cross-section of the profile,

27 according to the connector 26 in a perspective view,

28a two interconnected building panels with inserted connector according to 26 and 27 in one cut,

28b the interconnected building panels according to 28a , with indicated concave bottom, in a section;

29 another connector with angled projection and with rounded foot, in cross-section of the profile;

30 according to the connector 29 in a perspective view;

31 two interconnected building panels with inserted connector according to 29 in one cut,

32 according to the connector 29 but without beveled Eden at the head, in cross-section of the profile;

33 according to the connector 32 in a perspective view;

34 a connector with another, web-shaped projection, in the cross-section of the profile,

35 two interconnected building panels with inserted connector according to 34 in a cut;

36 a portion of the connector according to 34 in a perspective view;

37 a connector according to 34 but with a modified foot, in cross-section of the profile,

38 two interconnected building panels with inserted connector according to 37 in a partial section,

39 and 40 according to the connector 37 in two perspective views;

41 a connector having downwardly projecting tongues, in cross-section of the profile,

42 two interconnected building panels with inserted connector according to 41 in a partial section,

43 according to the connector 41 in a perspective view, with visible tongues;

44 according to the connector 41 in a view on its inside;

45 and 46 according to the connector 41 in plan view of the side surface of his foot and in plan view from above on the head piece;

47 a connector according to 41 but with foot changed, in a section of the profile;

48 two interconnected building panels with inserted connector according to 47 in a partial section;

49 according to the connector 47 in a view on its inside;

50 and 51 according to the connector 47 in plan view of the side surface of his foot and in plan view from above on the head piece;

52 a connector according to 37 but with the head changed, in a section of the profile;

53 two interconnected building panels with inserted connector according to 453 in a partial section;

54 a connector according to 37 but with another variant of the headpiece, in a section of the profile;

55 two interconnected building panels with inserted connector according to 54 in a partial section;

56 and 57 two further building panels, each in the area of their side surface, without connectors, each in a section;

58 a further embodiment of the connector, suitable for the building panels according to 56 and 57 in a cut;

59 and 60 the building panels according to 56 and 57 laid, without and with connector, in one cut;

61 a floor in a perspective view from above, and

62 according to the connector 58 in a perspective view.

The 1 . 2 and 16 show two building panels 1.1 . 1.2 before and after swinging down the building panel 1.2 (Gegenpaneel) towards the underground 11 on which the building panel 1.1 already laid. Characteristic of the figures is the lack of a separate connector, which will be described in detail below.

The two building panels 1.1 . 1.2 each consist of a wear layer 39 , a soil layer 40 and an intermediate core layer 38 made of wood material. The wear layer 39 is with a decorative layer 41 provided whose surface is a tread or floor space 6 forms. The soil layer 40 again shows one to the underground 11 facing base surface 26 on.

The building panel 1.1 is characterized by a profiled, through the Nutz- and base surfaces 6 ; 26 limited side area 8.1 out, having a shock surface 7.1 , a first groove offset from the abutment surface 9 and one over the impact area 7.1 protruding locking arm 14 with an upstanding lip 15 ,

The first groove 9 is polygonal in cross-section and has one opposite the impact surface 7.1 recessed groove bottom 10 on, which is parallel to the impact surface 7.1 is arranged and in an upper, plane-parallel to the usable area 6 running groove flank 13 and a slanted lower groove flank 23 expires. The latter in turn goes into a parallel to the base area 26 lying ground 35 the locking arm 14 over, being in the middle of the ground 35 one along the side surface 8.1 running trough 36 is milled out.

The lip 15 the locking arm 14 is trapezoidal and tapers towards the bottom layer 40 such that at the lip one at an acute angle α to the ground 35 inclined inner surface 17 is formed. The angle α in the present case is between 80 ° and 85 ° and can vary.

As the 1 shows is from the ground 35 the locking arm 14 , from the inside surface 17 the lip 15 and from the first groove 9 or from whose upper groove flank 13 a seat 60 formed to accommodate the connector.

The building panel 1.2 is characterized by a profiled, through the tread and base surfaces 6 . 26 limited side area 8.2 out, having a shock surface 7.2 , one opposite the impact surface 7.2 recessed slope 19 and a downwardly directed locking element 20 , The slope 19 forms together with the locking element 20 a deep, sharp, V-shaped transition 25 ,

On the locking element 20 is a pressing surface 21.1 Milled with the usable area 6 forms an acute angle and approximately parallel to the slope 19 is arranged. The sharp angle is preferably 60 °. The locking element 20 closes at a downwardly open recess 37 for receiving the lip 15 of the building panel 1.1 at.

In 16 is a relatively wide gap S between the locking element 20 and the lip 15 to see if the two abutment surfaces 7.1 . 7.2 contact each other.

The building panels 1.1 . 1.2 are locked together in neither horizontal nor vertical direction.

A similar location of the underground 11 laid construction panels 1.1 . 1.2 is the 7 refer to. However, here is a separate connector 2.1 (Profile) used, such that the gap S (see. 16 ) completely from a bridge-shaped foot 12.1 of the profile is filled out. The building panels 1.1 . 1.2 form together with inserted profile 2.1 An institution 100 in which the profile has a lock in both directions (cf. 7 , Arrows X, Y) causes.

The approximately gutter-shaped profile 2.1 (see. 8th and 9 ) has a cross-section Q1, on which a part-cylindrical inner surface 4 , an equally part-cylindrical outer surface 28 , a head piece 5.1 and the foot 12.1 can be seen. The interior and exterior surfaces 4 . 28 limit a gutter-shaped wall 3 that from the head piece 5.1 to the foot 12.1 enough.

This in 9 shown profile 2.1 is relatively short and therefore intended for the narrow sides of the building panels. Its length L corresponds essentially to the extent of the narrow side or is slightly smaller. An in 61 schematically indicated floor 34 consists of several construction panels described above 1.1 . 1.2 together, which are locked at their narrow sides on the separate connector and on longitudinal sides via conventional, not shown tongue and groove connections.

The foot 12.1 has a sloping side surface 24 whose angle of inclination corresponds to the angle α (cf. 2 ) is equal to. Further, the foot points 12.1 a stand space 27 and one of the stand space 27 opposite, oblong, upper edge 16 which adjoins the said part-cylindrical inner surface 4 followed.

An essential feature of the head piece 5.1 is its upper pressure surface 18 , on the inside of another, oblique sliding surface 22 is limited.

That in the building panel 1.1 pressed-in profile 2.1 is also in 3 and 4 shown. The head piece 5.1 is in contact with the upper groove flank 13 and juts over the impact area 7.1 out. The foot 12.1 rests with his footprint 27 on the ground 35 and with its side surface 24 on the inner surface 17 the lip 15 from. The wall 3 in turn supports with its arcuate, lower base part 42 at the hollow 36 (see. 3 ). That's the profile 2.1 on the building panel 1.1 set and before falling out of the seat 60 secured.

As the 4 shows is one to the base part 42 reaching thigh 43 the wall 3 flexible. As the thigh 43 the head piece 5.1 The latter is also opposite the base part 42 pivoted or rotatably arranged.

In 5 . 6 and 56 is the swinging down of the counter panel 1.2 to the underground 11 shown. The Gegenpaneel is about the pivot axis A (see. 61 ) turned. In the in 5 shown position drives the locking element 20 downward. It glides over the impact area 7.1 of the already laid construction panel 1.1 until she with her oblique pressing surface 21 against the head piece 5.1 encounters (cf. 5 and 6 ). Thereafter, the locking element slides 20 with its pressure surface 21 about the in 8th shown pressure and sliding surfaces 22 . 18 of the head piece, until this towards groove bottom 10 is pivoted and enters the in 7 shown locking position, in which the head piece 5.1 in the v-shaped transition 25 the slope 19 to the locking element 20 kicks in.

The profile is subject to this 2.1 when swinging down the counter panel 1.2 towards the ground 35 of the already laid construction panel 1.1 a twist, in which the head piece 5.1 is gradually rotated so that first one of the pivot axis A of the building panel facing the end 31 and then a second end 32 of the profile completely under the upper groove flank 13 reach. Under torsion in the present case, the twisting of only a part of the profile, namely the leg 43 and the head piece 5.1 be understood while the foot 12.1 remains immobile in its position.

The 10 shows a connector 2.2 , which is similar to the connector 2.1 is constructed with the difference that instead of a bar-shaped a massive foot 30 is provided. This profile shows a cross section Q2 in which the footprint 27 of the massive foot 30 to the base part 42 enough. The profile 2.2 can instead of the profile 2.1 be used (not shown).

Another similar profile embodiment (reference number 2.3 ) shows a cross section Q3 according to 11 , The wall 3 points at its central segment, ie at its base part 42 , a flat lower surface 29 on. An unillustrated bottom of the locking arm 14 has a custom face (not shown) for the profile 2.3 ,

The 12 shows a cross section Q4 of another profile 2.4 in which the massive foot 30 over the lower base part 42 the profile of the arcuate, pivoting leg 43 connects, such that the lower, flat base 27 until the said thigh 43 enough. According to 13 is the profile 2.4 with his stand space 27 on the equally flat ground 35 the locking arm 14 placed. The width of the floor 35 is the stand area 27 equal. That's the thigh 43 around a transition area 45 the profile of the transition of the soil 35 into the sloping groove flank 23 corresponds, swiveling.

The 14 shows a cross section Q5 of another profile 2.5 which the profile 2.4 is almost identical. However, the profile is 2.5 in his transition area 45 to the thigh 43 stepped. The base part 42 of the profile 2.5 has a flat, lower outer surface 44 on, extending between the side surface 24 the lip 15 and a gradation 51 the wall 3 extends. The gradation 51 on the profile 2.5 fits to a relatively low groove flank 33.1 one at the bottom of the locking arm 14 incorporated groove 61 (see. 15 ). The in the groove 61 used connectors 2.5 also pushes with his head piece 5.1 against the upper groove flank 13 the first groove 9 , This is the connector 2.5 Safe in the seat of the building panel 1.1 placed while leaving the required flexibility of the head piece 5.1 wearing thigh 43 ,

The 18 shows a further cross-section (reference Q15) of a profile 2.15 , which is a further development of the in 8th represented profile 2.8 is. The part-cylindrical inner surface 4 of the profile 2.15 goes from top edge 16 of the foot 12.1 starting in a flat, up to the head piece 5.1 reaching surface section 63 above.

As the 17 and 19 show is the head piece 5.1 at both ends 31 . 32 of the profile 2.7 each bevelled, with an introductory edge 49.1 . 49.2 results.

The profile 2.15 is also in 20 . 21 and 22 shown. One at the head piece 5.1 arranged, free inner edge 75 is straight along the overall length L of the connector and has no insertion edges. Otherwise the profile is with the in 17 to 19 shown identical.

In 23 is a cross section Q6 of another profile 2.6 shown. The approximately part-cylindrical inner surface 4 of the profile 2.6 on the one hand goes into a plane, strip-shaped inner surface 54 in the oblong edge 16 a foot 12.4 and then in the plan, up to a header 5.2 reaching surface section 63 above.

The foot 12.4 has two thickness dimensions: a thickness a in the upper edge region and a smaller thickness b in the lower, with the footprint 27 ending area.

The head piece 5.2 has the aforementioned printing surface 18 and sliding surface 22 on, however, is on both ends 31 . 32 the profile with beveled leading edges 49.1 . 49.2 (see. 24 ) Mistake. In addition, it can be seen from the cross section Q6 that the upper, planar pressure surface 18 over a slightly sloping section 76 in the sliding surface 22 passes.

Furthermore, the profile has 2.6 an outwardly projecting, in the longitudinal direction of the profile extending, bead-like projection 48.1 up, in a transition area 47 of the base part 42 to the movable thigh 43 located. As the 25 shows is the lead 48.1 when in contact with the ground 35 the locking arm 14 and with a perpendicular to the ground 35 arranged, relatively low groove flank 33.2 a groove 62 , The groove 62 is through said groove flank 33.2 , the inner surface 17 the lip 15 and the floor 35 with the hollow 36 Are defined.

The locking element 20 (see. 25 ) is due to the inclined pressure surface 21.1 , one to the Andrückfläche 21.1 subsequent, perpendicular to the usable area 6 arranged, second pressing surface 21.2 and by an inclined support surface 64 limited, at the headpiece 5.2 with its lower surface 65 supported. The inclined support surface 64 forms together with the slope 19 an unbalanced, V-shaped groove 66 into which the head piece 5.2 is introduced so that it with its pressure surface 18 the upper groove flank 13 the first groove 9 and with its lower pressure surface 65 the inclined support surface 64 contacted. In addition, the plane surface section is 63 of the thigh 43 with the pressure surface 21.2 the locking element 20 in contact (after the introduction of the locking element 20 ; see. 25 ).

Of the 26 is a cross section Q7 another, with a projection 48.2 provided profile 2.7 to take that in the 23 described parts, the head piece 5.2 and the foot 12.4 , having. The outer surface 28 at the base part 42 continues up to a side surface 67 of the projection 48.2 at its free end. The lead 48.2 tapers towards the transition area 47 of the thigh 43 to the base part 42 , The thigh 43 itself has an upper, the head piece 5.2 wearing, straight thigh section 68 and a lower, to the base part 42 subsequent straight thigh section 69 on. The two thigh sections 68 and 69 are arranged at an obtuse angle ε to each other, which in the present case is about 150 °.

As the 27 shows, points the head piece 5.2 as well as the rectilinear inner edge 75 on.

The use of profile 2.7 is in 28a and 28b shown.

The floor 35 the locking arm 14 is slightly concave and forms together with the inner surface 17 the lip 15 and the lip opposite groove edge 33.2 the groove 50 (see. 28b ). The groove flank 33.2 and the inner surface 17 the lip 15 are inclined to each other and form an acute angle β. The angle β is in the present embodiment in the angular range 5 ° to 10 ° and may vary somewhat.

The seat 60 (see. 28b ) for housing the connector 2.7 is also available in this version. He is through the first groove 9 and through the inclined inner surface 17 the lip 15 and through the floor 35 , if necessary, the groove 50 the locking arm 14 educated. This pushes into the seat 60 used profile 2.7 with his head piece 5.2 against the upper groove flank 13 the first groove 9 ,

The locking element 20 (see. 28a ) is similar to the embodiment according to FIG 25 built up. However, not only is the interior surface 4 of the profile 2.7 but also the thigh 43 with his thigh sections 68 and 69 to the shape of the locking element 20 customized. The head piece 5.2 engages in the V-shaped groove 66 and supports itself with its lower pressure surface 65 on the support surface 64 the groove 66 from. The support surface 64 is at an acute angle λ with respect to the base surface 26 inclined. A straight line c delimiting the angle λ (cf. 28a ) forms the base surface 26 from. The angle λ is in the present case about 10 °. Same arrangement of the head piece 5.2 in inserted state also applies to the execution according to 23 to 25 ,

In this way, the connector 2.7 Safe in the seat 60 of the building panel 1.1 housed while leaving the required flexibility of his headpiece 5.2 wearing thigh 43 ,

The 29 shows a cross section Q8 of a profile 2.8 that the profile 2.7 is similar. The same reference numerals designate like parts. The profile 2.8 has a foot 12.2 up, away from the foot 12.4 through a rounding off 70 different. An outward protrusion 48.3 shows with its free, bent end 71 up. The lead 48.3 can be referred to as a bar-shaped.

As the 30 shows is the head piece 5.2 at both ends 31 . 32 of the profile 2.8 each from an introductory edge 49.1 . 49.2 beveled.

The use of the profile 2.8 is in 31 shown. The profile 2.8 is with its base part 42 as well as in the execution according to 28a , in the groove 50 pressed. The head piece 5.2 engages in the inserted state in the V-shaped groove 66 and supports itself with its lower pressure surface 65 on the support surface 64 the groove 66 from. Between the sloping pressure surface 21.1 of the locking element 20 and the thigh 43 there remains a slight gap 72 ,

According to 32 and 33 is the same profile 2.8 shown without introduction edges. Accordingly, the headpiece 5.2 the rectilinear inner edge 75 on.

The following figures represent advantageous embodiments of the invention.

That's how it shows 34 a cross section Q9 of a profile 2.9 in that, instead of the projection, an outwardly projecting, stabilizing web 55 which is significantly higher than that in 29 shown projection 48.3 is. The jetty 55 is elastically deformable, so that with its outer surface 73 - in the inserted state - on the sloping groove flank 23 the groove 9 can support under tension. This situation is the one 35 refer to. The thigh 43 ends with a head piece 5.3 that the upper pressure surface 18 as well as an in 34 and 36 clearly shown, rounded sliding surface 53 having. The head piece 5.3 is also characterized by the aforementioned lower pressure surface 65 off, in the assembled state (see. 35 ) is inclined slightly upwards and the same, in the 28a forms shown angle λ.

The base part 42 of the head piece 5.3 ends with a foot 12.3 , whose upper inner surface 54 with the side surface 24 forms an acute angle γ. This is how the foot tapers 12.3 in its upper area towards the edge 16 , The inner surface 4 the wall 3 and the rounded lower surface of the locking element 20 are partially elliptical. The locking element 20 is on the one hand by the flat Andrückflächen 21.1 ; 21.2 and on the other hand by a flat inner surface 59 limited, in the aforementioned, downwardly open recess 37 on the building panel 1.2 passes.

Moves the locking element 20 down, presses it with its Andrückflächen 21.1 ; 21.2 against the rounded sliding surface 53 of the head piece 5.3 until this in the trapezoidal groove 52 engages and the thigh 43 in contact with the pressure surface 21.2 is brought. Here is the inner surface 59 of the locking element 20 with the upper inner surface 54 of the foot 12.3 in contact. The contacting inner surfaces 54 ; 59 form with the usable area 6 the building panel a in 35 shown obtuse angle δ ₂ . The recess 37 spreads slightly downwards in its upper part.

An in 37 Shown section Q10 describes a profile 2.10 in which the already in 23 illustrated foot 12.4 is available. Otherwise the profile has 2.10 the same parts as the profile 2.9 (see. 34 ) and is denoted by the same reference numerals.

The head piece 5.3 also has the slightly upwardly inclined, lower pressure surface 65 on, in the inserted state (see. 38 ) to the inner surface 59 of the locking element 20 is adapted and contacted with this. The inner surface 59 of the locking element 20 at the same time forms a groove flank of the recess 37 , Like from the 38 can be seen, the recess tapers 37 slightly down. As a result, the two inner surfaces contacting each other 54 . 59 at an acute angle δ ₁ with respect to the effective area 6 are arranged. If you have a vertical T to the usable area 6 pulls, lie the said inner surfaces 54 . 59 at an acute, complementary angle δ ₃ with respect to the vertical T, wherein the sum of both angles δ ₁ , δ _{3 is} 180 °.

The lower pressure surface 65 of the rounded head piece 5.3 is below the already mentioned, acute angle λ relative to the base surface 26 inclined.

In 39 and 40 is the profile 2.10 shown in two perspective views. The figures show that the head piece 5.3 as well as the rectilinear inner edge 75 having no introduction edges.

In 41 is a cross section Q11 another, with 2.11 designated profile shown. The profile 2.11 is in another 43 and 44 in perspective views and in 45 . 46 in plan view of the interior of the profile and on the top of the head piece 5.3 shown. The inner surface 4 the wall 3 and the rounded lower surface of the locking element 20 are partially elliptical.

An essential feature of the profile 2.11 are outwardly projecting, elastically deformable, rectangular tongues 56.1 . 56.2 . 56.3 . 56.4 . 56.5 coming from a transition area 47 (see. 42 ) of the base part 42 to the movable thigh 43 starting obliquely opposite the undeformed leg 43 lie. The tongues 56.1 . 56.2 . 56.3 . 56.4 . 56.5 are in a piece of material with the profile 2.11 manufactured by injection molding. In addition, it is advantageous that the downward tongues 56.1 . 56.2 . 56.3 . 56.4 . 56.5 one window each 58.1 . 58.2 . 58.3 . 58.4 . 58.5 in the material of the wall 3 form.

As the 44 . 45 and 46 show is the profile 2.11 with two introduction edges 49.1 . 49.2 Mistake. The execution of the profile 2.11 according to 43 does not provide any introductory edges.

Accordingly, the headpiece 5.3 the rectilinear inner edge 75 on. In 43 are only three tongues 56.1 . 56.2 . 56.3 and three windows 58.1 . 58.2 . 58.3 shown.

The protruding tongues 56.1 . 56.2 . 56.3 . 56.4 . 56.5 are at an equal inner distance d (cf. 43 and 46 ) are arranged from each other along the profile.

The use of the profile 2.11 is in 42 shown. The locking element 20 presses against the base part 42 of the profile, the head piece 5.3 in the trapezoidal groove 52 engages and the thigh 43 in contact with the pressure surface 21.2 stands. The contacting inner surfaces 54 ; 59 form with the usable area 6 the building panel a in 42 shown acute angle δ. ₁ The recess 37 it tapers slightly downwards. The elastic tongues 56.1 . 56.2 . 56.3 . 56.4 . 56.5 deform and support themselves on the sloping groove flank 23 the first groove 9 from.

Of the 47 is a cross section Q12 another, with tongues 56.1 . 56.2 . 56.3 . 56.4 . 56.5 provided profile 2.12 refer to. The difference to in 41 shown profile 2.11 is that his foot 12.3 similar to the profile 2.9 (see. 34 ), tapers upwards in its upper area.

The inner surface 4 the wall 3 of the profile 2.12 and the rounded lower surface of the locking element 20 (see. 48 ) are partially elliptical.

In 49 is the profile 2.12 in a perspective view towards the inside of the profile and in 50 . 51 in plan view of the interior of the profile and on the top of the head piece 5.3 shown. The figures show that the head piece 5.3 the rectilinear inner edge 75 having no introduction edges.

The used profile 2.12 is in 48 shown. The inner surface 54 of the foot 12.3 forms with the inner surface 59 of the locking element 20 the obtuse angle δ ₂ . The elastic tongues 56.1 . 56.2 . 56.3 . 56.4 . 56.5 rested tense on the sloping groove side 23 the first groove 9 from.

In 52 is another cross-section (reference Q13) one with 2.13 designated profile, the in 37 shown cross-section Q10 (profile 2.10 ) is very similar. The profile 2.13 has a rounded head 5.4 on, the lower pressure surface 65 angular with respect to the flat surface section 63 on the inside of the thigh 43 is arranged. In the inserted state (cf. 53 ) the printing surface runs 65 of the head piece 5.4 plane parallel to the useful or base surface 6 ; 26 , In addition, the contacting inner surfaces form 54 ; 59 with the usable area 6 the building panel the already shown acute angle δ. ₁ Another arrangement, for example, with obtuse angle δ _{2 of} the contacting inner surfaces 54 ; 59 is possible.

The 54 shows a cross section Q14 with a 2.14 designated profile whose details differ from the profile 2.10 (see. 37 ). The difference between the two profiles is that the profile 2.14 in contrast to the profile 2.10 a head piece 5.5 with one down towards the foot 12.4 inclined pressure surface 65 having.

In the inserted state of the connector (see. 55 ) forms the pressure surface 65 with the useful or base area 6 . 26 the building panel has a sharp angle ξ. The size of the angle ξ is about the size of the in 38 imaged angle λ. Accordingly, the angle ξ in the present case about 3 ° to 5 ° and of course may vary. However, the angle ξ should be at least 2 ° in terms of advantageous self-locking of the two surfaces in contact.

The inner surface 4 as well as the outer surface 28 the wall 3 runs from the foot 12.4 beginning to to the transition 47 to the movable thigh 43 partially elliptical.

In 58 and 62 is another connector (reference number 2.16 ) whose cross-section Q16 is approximately a combination of the cross section Q2 (see. 10 ) and the cross section Q9 (cf. 34 ). Coming soon will be the connector 2.16 the head already described 5.3 with slightly inclined printing surface 65 , the protruding jetty 55 and a web-shaped upwardly pointing foot 77 on, the lower one, by the footprint 27 limited part similar to the foot 30 according to 10 is executed without bottom gradation. The stand area 27 is flat and goes into the slightly rounded, lower outer surface 28 the wall 3 above.

The to the connector 2.16 customized side surfaces 8.1 . 82 the building panel 1.1 . 1.2 are detailed in 56 and 57 as in 59 shown. The chunky locking element 20 of the building panel 1.2 is through the lower, inclined pressure surface 21.1 , the lateral, perpendicular to the usable area 6 extending pressure surface 21.2 that has rounded bottom surface 46 and the pressure surfaces 21.1 . 21.2 opposite inner surface 59 as well as through the support surface 64 the groove 52 limited. The for receiving the head piece 5.3 provided groove 52 is almost rectangular and has the lower, slightly outward at an angle λ sloping groove flank (= support surface 64 ) as well as an upper, parallel to the usable area 6 lying groove flank 79 on. The inner surface 59 is perpendicular to the usable area 6 arranged, but it can also be slightly inclined.

At the lip 15 of the building panel 1.1 is an upper, inner bevel 80 and another, smaller outer bevel 81 to see. Furthermore, the upper groove flank closes 13 the groove 9 over a bevel 82 to the impact area 7.1 of the building panel 1.1 at. The bevels 80 . 82 , facilitate the placement of the connector 2.16 in the seat 60 , Especially when the connectors are to be pressed using an unillustrated machine. The inner surface 17 the lip 15 is perpendicular to the base surface 26 of the building panel 1.1 arranged so that a right angle α between the inner surface 17 and a plane surface section 78 of the soil 35 results. In the inserted state of the connector 2.16 (see. 60 ) This is supported by its footprint 27 at the plane surface section 78 from. The inwardly inclined, bar-shaped part of the foot 77 pushes against the inner surface 59 of the locking element 20 but its lower, heel-like part is only partially supported, but secure on the inner surface 17 the lip 15 from. This is on an in 60 shown linear support surface referred to, in cross section as a base 83 is designated.

Important in this particularly advantageous embodiment is that between the trough 36 and the lower outer surface 28 of the connector 2.16 - In the inserted state - a slight gap S1 is formed, which almost to the free end, ie up to a bead 84 of the footbridge 55 enough. This can make the wall 3 of the connector 2.16 give something away when the locking element 20 with the lowest part of its round, lower surface 46 against the wall 3 suppressed. The jetty 55 give something and push with his bead 84 tense against the inclined groove flank 23 ,

This is the connector 2.16 as secure in the seat 60 of the building panel 1.1 housed while leaving the required flexibility of his headpiece 5.3 wearing thigh 43 ,

All with the tabs 48.1 . 48.2 . 48.3 , with the jetties 55 and with the tongues 56.1 . 56.2 . 56.3 . 56.4 . 56.5 provided profiles improve the positional stability of these profiles before and after the introduction of the locking element 20 in the from the inner surface 4 Interior of the respective profile.

LIST OF REFERENCE NUMBERS

1.1; 1.2

building panel

2.1; 2.2; 2.3; 2.4

Interconnects

2.5; 2.6; 2.7; 2.8

Interconnects

2.9; 2.10; 2.11

Interconnects

2.12; 2.13; 2.14

Interconnects

2.15; 2.16

Interconnects

3

wall

4

palm

5.1; 5.2; 5.3

headpiece

6

Usable area

7.1, 7.2

abutting face

8.1, 8.2

side surface

9

first groove

10

groove bottom

11

underground

12.1; 12.2

foot

12.3; 12.4

foot

13

flank

14

lock

15

lip

16

edge

17

palm

18

Printing area (v. 2 )

19

slope

20

locking element

21.1; 21.2

pressing surface

22

Sliding surface (v. 2 )

23

flank

24

side surface

25

sharp transition

26

footprint

27

footprint

28

outer surface

29

lower surface

30

foot

31, 32

The End

33.1, 33.2

flank

34

floor

35

ground

36

trough

37

recess

38

core layer

39

wear layer

40

soil layer

41

decorative layer

42

base

43

Wall part (thigh)

44

Outer surface (v. 42 )

45

Transition area

46

Surface (v. 20 )

47

Transition area

48.1; 48.2; 48.3

head Start

49.1, 49.2

introduction edge

50

second groove (v. 14 )

51

Gradation (v. 2.5 )

52

Groove (v. 1.2 )

53

sliding surface

54

palm

55

Bridge (v. 2.9 )

56.1, 56.2, 56.3

tongue

56.4, 56.5

tongue

57

elastic line

58.1, 58.2, 58.3

window

58.4, 58.5

window

59

palm

60

Seat

61

groove

62

groove

63

surface section

64

support surface

65

print area

66

V-shaped groove

67

Side surface (v. 48.2 )

68, 69

Thigh section (v. 2.7 )

70

Rounding off (v. 12.2 )

71

free end (v. 48.3 )

72

column

73

Outer surface (v. 55 )

74

Outer surface (v. 56 )

75

inner edge

76

section

77

foot

78

surface section

79

upper groove flank (v. 52 )

80, 81, 82

bevel

83

base

84

bead

a, b

caliper

c

Just

d

distance

α

angle

β

angle

γ

angle

δ ₁ , δ ₂ , δ ₃

angle

ε

angle

λ

angle

ξ

angle

A

swivel axis

L

overall length

Q1; Q2; Q3; Q4

cross-section

Q5; Q6; Q7; Q8

cross-section

Q9; Q10; Q11; Q12

cross-section

Q13; Q14; Q15; Q16

cross-section

S; S1

gap

T

vertical

X, Y

arrow

100

Facility

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2008/004960 [0002, 0011, 0011]
• DE 202009004530 U1 [0003]
• DE 10237397 A1 [0004]
• WO 00/47841 A1 [0005]

Claims (23)

Building panel with a device ( 100 ) for connection to at least one other similar building panel on a substrate ( 11 ), wherein the building panel is intended to be lowered against an already laid building panel, wherein - the building panel ( 1.1 . 1.2 ) respectively opposite first and second, profiled side surfaces ( 8.1 ; 8.2 ), on each of which an impact surface ( 7.1 . 7.2 ) is arranged perpendicular to a usable area ( 6 ) or base area ( 26 ) of the building panel, - the impact area ( 7.1 ) of the first side surface ( 8.1 ) in one along the side surface of the building panel ( 1.1 .), First groove ( 9 ), - over the impact area ( 7.1 ) of the first side surface ( 8.1 ) of the building panel ( 1.1 ) a locking arm ( 14 ), - the locking arm ( 14 ) in one of the usable area ( 6 ) directed lip ( 15 ), which in turn one into a ground ( 35 ) of the locking arm ( 14 ) leaking inner surface ( 17 ), - the first groove ( 9 ) one opposite the impact surface ( 7.1 ) of the first side surface ( 8.1 ) recessed groove bottom ( 10 ), - into the first groove ( 9 ) of the building panel ( 1.1 ) an elongated, at least partially flexible, separate connector ( 2.1 ; 2.2 ; 2.3 ; 2.4 ; 2.5 ; 2.6 ; 2.7 ; 2.8 ; 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.13 ; 2.14 ; 2.15 ; 2.16 ) is at least partially embedded, which in the laid state of the building panel ( 1.1 . 1.2 ) with the second side surface ( 8.2 ) of an opposite building panel ( 1.2 ), - the connector ( 2.1 ; 2.2 ; 2.3 ; 2.4 ; 2.5 ; 2.6 ; 2.7 ; 2.8 ; 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.13 ; 2.14 ; 2.15 ; 2.16 ) has an approximately gutter-shaped cross-section (Q1; Q2; Q3; Q4; Q5; Q6; Q7; Q8; Q9; Q10; Q11; Q12; Q13; Q14; Q15; Q16) and an at least partially arcuate one of a base part (Q1; 42 ) and a thigh ( 43 ) existing wall ( 3 ), - the wall ( 3 ) with an at least partially partially cylindrical or partially elliptical inner surface ( 4 ) at an edge of said inner surface - seen in cross-section (Q1; Q2; Q3; Q4; Q5; Q6; Q7; Q8; Q9; Q10; Q11; Q12; Q13; Q14; Q15; Q16) of the connector - into a header (Q1; 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) and at another edge into a foot ( 12.1 ; 12.2 ; 12.3 ; 12.4 ; 30 ; 77 ), - the foot ( 12.1 ; 12.2 ; 12.3 ; 12.4 ; 30 ; 77 ) an outwardly directed, in the inserted state of the inner surface ( 17 ) of the lip ( 15 ) facing side surface ( 24 ) and one on the side surface ( 24 ) subsequent stand area ( 27 ), - the head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) of the connector ( 2.1 ; 2.2 ; 2.3 ; 2.4 ; 2.5 ; 2.6 ; 2.7 ; 2.8 ; 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.15 ; 2.16 ) in the inserted state of the connector in the direction of usable area ( 6 ), - which is connected to the base part ( 42 ) subsequent legs ( 43 ), which is in the head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) expires, is movably disposed in the inserted state of the connector, so that when joining building panels of the legs ( 43 ) together with head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) in the direction of the groove bottom ( 10 ), - the second side surface ( 8.2 ) a locking element ( 20 ), which when joining two building panels ( 1.1 . 1.2 ) in the from the inner surface ( 4 ) of the connector ( 2.1 ; 2.2 ; 2.3 ; 2.4 ; 2.5 ; 2.6 ; 2.7 ; 2.8 ; 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.13 ; 2.14 ; 2.15 ; 2.16 ) clamped interior of the opposite building panel, - the locking element ( 20 ) in a direction towards the base area ( 26 ) open recess ( 37 ) of the building panel ( 1.2 ), - the soil ( 35 ) of the locking arm ( 14 ) and the first groove ( 9 ) as well as the inner surface ( 17 ) of the lip ( 15 ) a seat ( 60 ) for housing the connector ( 2.1 ; 2.2 ; 2.3 ; 2.4 ; 2.5 ; 2.6 ; 2.7 ; 2.8 ; 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.13 ; 2.14 ; 2.15 ; 2.16 ), and wherein the head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) in the first groove ( 9 ) fitted state of the connector ( 2.1 ; 2.2 ; 2.3 ; 2.4 ; 2.5 ; 2.6 ; 2.7 ; 2.8 ; 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.13 ; 2.14 ; 2.15 ; 2.16 ) at least partially against a first groove flank ( 13 ) of said groove ( 9 ), characterized in that - the foot ( 12.1 ; 12.2 ; 12.3 ; 12.4 ; 30 ) of the connector with its side surface ( 24 ) and with its footprint ( 27 ) as well as the ground ( 35 ) facing base part ( 42 ) of the connector said inner surface ( 17 ) of the lip and the floor ( 35 ) of the locking arm ( 14 ) before and after the joining of two building panels ( 1.1 . 1.2 ) at least partially contact, - wherein the inner surface ( 17 ) of the lip at an acute or right angle (α) to the bottom ( 35 ) of the locking arm ( 14 ) or to the base area ( 26 ) of the building panel ( 1.1 ) is arranged, - and wherein the locking element ( 20 ) at least one flat pressure surface ( 21.1 ), which in the connection of two building panels against the head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ), so that the head piece in the direction of groove bottom ( 10 ) is pivoted. Building panel according to claim 1, characterized in that the pressure surface ( 21.1 ; 21.2 ) obliquely or perpendicular to the usable area ( 6 ) of the building panel is arranged and that the oblique pressing surface ( 21.1 ) of the locking element ( 20 ) to a rounded, the base surface ( 26 ) facing surface ( 46 ) having. Building panel according to claim 2, characterized in that the rounded surface ( 46 ) of the locking element ( 20 ) over an oblique or perpendicular to the usable area ( 6 ), flat surface ( 59 ) in the recess ( 37 ) passes over. Building panel according to claim 1, characterized in that the head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) a plane, in the inserted state of the connector of the first groove flank ( 13 ) facing pressure surface ( 18 ), which in turn in an oblique or rounded sliding surface ( 22 ; 53 ) continues. Building panel according to claim 4, characterized in that - the head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) a plane, the printing surface ( 18 ) facing away, between the sliding surface ( 22 ; 53 ) and the thigh ( 43 ) extending, second pressure surface ( 65 ), - the second printing surface ( 65 ) in the inserted state of the connector - after the introduction of the locking element ( 20 ) - a flat support surface ( 64 ) of the locking element ( 20 ) and parallel or at a sharp angle (λ; ξ) relative to the effective area ( 6 ) is arranged. Building panel according to claim 1, characterized in that the first groove flank ( 13 ) of the first groove ( 9 ) plane-parallel to the usable area ( 6 ) runs. Building panel according to one of claims 1 to 6, characterized in that the first groove ( 9 ) a second, obliquely from the groove bottom ( 10 ) extending groove flank ( 23 ), which in turn to the ground ( 35 ) of the locking arm ( 14 ). Building panel according to claim 1 or 7, characterized in that on the ground ( 35 ) of the locking arm ( 14 ) at least one parallel to the longitudinal orientation of the side surface ( 8.1 ) running trough ( 36 ), which are connected to a plan, to the lip ( 15 ) adjacent area section ( 78 ) of the soil connects. Building panel according to claim 1 and 8, characterized in that the footprint ( 27 ) of the foot ( 77 ) in the inserted state of the connector ( 2.16 ) with the entire plane surface section ( 78 ) of the soil and that between the trough ( 36 ) and the outer surface ( 28 ) of the connector ( 2.16 ) a slight gap (S1) remains. Building panel according to claim 1, characterized in that the side surface ( 24 ) of the foot ( 12.1 ; 12.2 ; 12.3 ; 12.4 ; 30 ; 77 ) over an elongated, the floor space ( 27 ) facing away from the edge ( 16 ) in the inner surface ( 4 ) of the wall ( 3 ) passes over. Building panel according to claim 1, characterized in that - the impact surface ( 7.2 ) of the connector ( 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.13 ; 2.14 ) cooperating building panel ( 1.2 ) via a rectangular or trapezoidal groove ( 52 ) in the locking element ( 20 ), and that the head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) after insertion of the locking element ( 20 ) in the connector ( 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.16 ) into the groove ( 52 ) intervenes. Building panel according to claim 10, characterized in that the groove ( 52 ) a plane parallel to the usable area ( 6 ) of the building panel ( 1.2 ) running groove flank ( 79 ) having. Building panel according to claim 1, characterized in that the foot ( 12.1 ; 12.2 ; 12.3 ; 12.4 ; 77 ) is at least partially web-shaped. Building panel according to claim 13, characterized in that the foot ( 12.1 ; 12.2 ; 12.3 ; 12.4 ; 77 ) in the inserted state of the connector perpendicular or inclined relative to the base surface ( 26 ) of the building panel is arranged. Building panel according to claim 1, characterized in that the inner surface ( 4 ) of the connector ( 2.9 ; 2.10 ; 2.11 ; 2.12 . 2.13 ; 2.14 ; 2.16 ) over a flat, strip-shaped inner surface ( 54 ) in the oblong edge ( 16 ) of the foot ( 12.3 ; 12.4 ; 77 ) expires. Building panel according to claim 15, characterized in that the strip-shaped inner surface ( 54 ) parallel to the outwardly directed side surface ( 24 ) of the foot ( 12.4 ) or with the side surface ( 24 ) forms an acute angle (γ). Building panel according to one of the preceding claims, characterized in that the connector ( 2.6 ; 2.7 ; 2.8 ) in a transitional area ( 47 ) of its basic part ( 42 ) to the movable leg ( 43 ) at least one outwardly projecting, in longitudinal direction of the connector ( 2.6 ; 2.7 ; 2.8 ) extending lead ( 48.1 ; 48.2 ; 48.3 ), which in the inserted state of the connector, the groove flank ( 33.1 ; 33.2 ; 33.3 ) of the second groove ( 50 ) contacted. Building panel according to one of the preceding claims, characterized in that the projecting lip ( 15 ) at least one bevel ( 80 . 81 ) having. Building panel according to one of the preceding claims, characterized in that the connector ( 2.9 ; 2.10 ; 2.13 ; 2.14 ) at least one outwardly projecting, in longitudinal direction of the connector ( 2.9 ; 2.10 ; 2.13 ; 2.14 ; 2.16 ) running, at least partially elastically deformable web ( 55 ), which consists of a transitional region ( 47 ) of the base part ( 42 ) to the movable leg ( 43 ) - seen in cross-section (Q9; Q10; Q13; Q14; Q16) of the connector - obliquely opposite to the undeformed, said leg (FIG. 43 ) is arranged and in the inserted state of the connector against the oblique groove edge ( 23 ) of the first groove ( 9 ) presses. Building panel according to one of the preceding claims, characterized in that the connector ( 2.11 ; 2.12 ) at least one outwardly projecting, at least partially elastically deformable tongue ( 56.1 . 56.2 . 56.3 . 56.4 . 56.5 ), which consists of a transitional area ( 47 ) of the base part ( 42 ) to the movable leg ( 43 ) - seen in cross-section (Q11, Q12) of the connector - obliquely opposite the undeformed, said leg (FIG. 43 ) is arranged and in the inserted state of the connector, the oblique groove flank ( 23 ) of the first groove ( 9 ) contacted. Building panel according to claim 20, characterized in that the tongue ( 56.1 . 56.2 . 56.3 . 56.4 . 56.5 ) in a piece of material with the wall ( 3 ) of the connector ( 2.11 ; 2.12 ) is made while leaving a respective window ( 58.1 . 58.2 . 58.3 . 58.4 . 58.5 ). Building panel according to one of the preceding claims, characterized in that the head piece ( 5.3 ; 5.4 ; 5.5 ) in plan view of its printing surface ( 18 ) is strip-shaped and tapers outwards in the direction of at least one narrow side, forming an obliquely arranged introduction edge (FIG. 49.1 . 49.2 ). Building panel according to one of the preceding claims, characterized in that the building panel factory with at least one, at least partially in the seat ( 60 ) of the locking arm ( 14 ) are preferably pressed in by machine and there fixed connector ( 2.1 ; 2.2 ; 2.3 ; 2.4 ; 2.5 ; 2.6 ; 2.7 ; 2.8 ; 2.9 ; 2.10 ; 2.11 ; 2.12 ; 2.13 ; 2.14 ; 2.15 ; 2.16 ) while maintaining the mobility of the head piece ( 5.1 ; 5.2 ; 5.3 ; 5.4 ; 5.5 ) carrying thigh ( 43 ).

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