CN114521218A

CN114521218A - Panel(s)

Info

Publication number: CN114521218A
Application number: CN202180005267.8A
Authority: CN
Inventors: H-J·汉尼希; E·霍夫; C·布尔曼; A·西德尔; E·赫尔曼
Original assignee: Surface Technologies GmbH and Co KG
Current assignee: Surface Technologies GmbH and Co KG
Priority date: 2020-09-17
Filing date: 2021-09-17
Publication date: 2022-05-20
Also published as: US20230349163A1; EP3971366A1; WO2022058487A1

Abstract

The invention relates to a panel (1, 2, 3, 4) having a panel core (9), a panel upper side (7), a panel lower side (8) and having a first pair of edges which are provided with a groove profile (5) on one panel edge (N) and a complementary key profile (6) on the opposite panel edge (F), which can be locked by a pivoting movement (S) and then cooperate in a form-fitting manner such that, in the locked state, a vertical locking effect and a movement of the locked panel (1, 2, 3, 4) in the plane of the panel (P) can be achieved and are (horizontally) counter-acted, and a second pair of edges which are provided with complementary hook profiles on their opposite panel edges, i.e. receiving hooks (10, 56, 62, 69, 74) and locking hooks (11, 57, 63, 68, 75) are provided, the locking hook (11, 57, 63, 68, 75) can be engaged with the receiving hook (10, 56, 62, 69, 74) by an engaging movement in a plane perpendicular to the panel plane, simultaneously by means of a pivoting movement (S) for the first edge pair, with the proviso that: the receiving hooks (10, 56, 62) are provided with retaining grooves (12, 58, 64) or the locking hooks (68, 75) with retaining grooves (71, 77) for separate locking elements (70, 76) by means of which a vertical locking effect can be achieved, and at least on the second edge pair an impact surface (10a) and a corresponding impact surface (11d) are provided, with the proviso that: the impact surface (10a) is arranged on the receiving hook (10, 56, 62, 69, 74) and the counter-impact surface (11d) is arranged on the locking hook (11), and both are arranged essentially orthogonally with respect to the panel upper side (7), the corresponding impact surface (11d) of the locking hook (11, 57, 63, 68, 75) or the impact surface (10a) of the receiving hook being provided with at least one sealing sleeve (G2), the impact surface (10a) of the receiving hook (10, 56, 62, 69, 74) or the corresponding impact surface (11d) of the locking hook (11, 57, 63, 68, 75) being provided with at least one sealing groove (W2) on the panel edge (M), the sealing groove is matched in a form-fitting manner to a sealing sleeve (G2), wherein the sealing sleeve (G2) and the sealing groove (W2) are each arranged parallel to the associated panel edge (M, U) and extend over the entire length of the impact surface (10a) or of the associated impact surface (11 d).

Description

Panel(s)

Technical Field

The invention relates to a panel having a panel core, a panel top, a panel bottom and a first and a second pair of edges, wherein the first pair of edges is provided with a groove profile on the panel edge and a complementary key profile on the opposite panel edge, the slot profile and the key profile can be locked by a pivoting movement and then cooperate in a form-locking manner, in the locked state, a vertical locking effect and a (horizontal) resistance to a movement of the locked panel back in the plane of the panel are possible, wherein the second edge pair is provided with complementary hook profiles on its opposite panel edge, namely, a receiving hook and a locking hook are provided, wherein the locking hook can be engaged with the receiving hook by an engaging movement in a plane perpendicular to the panel plane, simultaneously by means of a pivoting movement for the first edge pair, provided that: the catch hook is provided with a retaining groove for a separate locking element, by means of which a vertical locking effect can be achieved, wherein an impact surface and a corresponding impact surface are provided at least on the second edge pair, with the proviso that: the impact surface is arranged on the receiving hook and the counter impact surface on the locking hook, and the impact surface and the counter impact surface are arranged substantially orthogonally with respect to the upper side of the panel.

Background

Such panels are known from EP 1415056B 1. This relates to a panel comprising a first pair of edges having a channel profile and a second pair of edges having a hook profile. The known panel can thus be locked by means of a pivoting movement at the edge with the key profile to the groove profile of the panel of the preceding panel row; it is considered to be a great advantage that, by means of the mentioned pivoting movement, at the same time one of the edges is also locked together with the hook profile. In this case, the separate locking element snaps in on its own. The snap-in function of the locking element is automatically triggered by the aforementioned pivoting movement at the first edge pair of the pane.

This type of laying is also known as Fold-down laying (Fold-down-Verlegung) or suitable panels are known as Fold-down panels.

Panels of this type are connected to one another in rows, transverse joints between the panels in a panel row being produced. Furthermore, longitudinal joints are formed between the panel rows of the surface of the planking formed in the composite structure. It is desirable that the longitudinal joints and the transverse joints of such decking surfaces should have some tightness against penetration of water. In practice, it has been found that water can penetrate into the joint and penetrate locally from the upper side of the panel through the joint to the lower side of the panel. Water that has penetrated or penetrated in this way can lead to the formation of mold that can spread conceivably under the surface of the decking.

It has been shown that moisture can penetrate or penetrate, in particular, through the transverse edges and the intersections of the transverse and longitudinal edges.

Disclosure of Invention

The object on which the invention is based is to provide a panel having an improved design of the profile of at least the second edge pair in order to better resist penetration of water at the joint.

According to the invention, this object is achieved by: the impact surface of the locking hook or of the receiving hook is provided with at least one sealing sleeve, the impact surface of the receiving hook or of the locking hook is provided with at least one sealing groove on the panel edge, which is form-fittingly matched to the sealing sleeve, and the sealing sleeve and the sealing groove are each arranged parallel to the associated panel edge and extend over the entire length of the impact surface or of the corresponding impact surface.

The proposed panel is provided with sealing means which are spatially arranged in a physical manner in the region of the respective joint. More precisely, the combination of the sealing sleeve and the sealing groove, which is arranged on the second edge pair, effectively resists water penetration or penetration.

The proposed panel has a quadrangular basic shape. The key profile of the first edge pair meets the receiving hook of the second edge pair at one of the four corners of the panel. The two different shapes of the panel edge intersect in this corner, resulting in an intersection of the different profile shapes, in which a complex three-dimensional configuration is produced. This complex configuration is due to the following reasons: the catch hook must have a retaining groove for the locking element, so that the retaining groove meets the key profile of the adjoining panel edge of the corner at the corner. In order to produce the retaining groove, the material of the panel core must be removed, for example milled. The milling of the retaining groove takes place at one end (transition zone) through the key profile and cuts the key-forming part of the panel core. I.e. cutting and removing a portion of the material of the key profile. On the key top side, a void is created in the transition zone, into which void water is not allowed to penetrate. The proposed configuration therefore follows the following technical route: suitable measures are given above the key top side, which measures are effective against water intrusion, including the level of the key top side. It has been shown that in this way a better tightness against penetrating water can be achieved.

More simply stated, the cross section of the retaining groove for the separate locking element can be preserved and known locking elements can be utilized. Suitable locking elements are known, for example, from EP 1415056B 1, WO 2011/087425 a1, US 9,347,469B 2 or US 7,866,110B 2. Reference is made here to the embodiment of the configuration for the individual locking elements and their arrangement on the panel as defined in the aforementioned publication and this technical teaching is included. Separate locking elements for the complementary hook profiles can optionally be provided as a constituent part of the panel. Preferably, the locking element is preassembled in the retaining groove of the receiving hook.

The carrier plate on which the panel according to the invention is based advantageously has a fibrous material, for example a high-density fibrous material (HDF) or a medium-density fibrous Material (MDF), a coarse cut material (OSB) or a wood-plastic composite material (WPC). It can also be provided that the panel has a decoration, wherein the decoration is formed by applying an already printed decoration layer to the carrier plate or by directly printing the carrier plate with such a decoration. Here, direct printing is also to be understood in the present case as printing of a printing substrate previously applied to the carrier plate. It can also be provided that the panel is composed of solid wood material or is formed entirely of wood material. Advantageously, such a fiber material can absorb water or moisture in the event of moisture contact, which leads to swelling. Such an expansion results here in an improved seal (Dichtschluss) in the region of the sealing sleeve or of the impact surface and the counter impact surface. In a further embodiment of the invention, the carrier plate on which the panel according to the invention is based has a plastic material, for example polypropylene (PP), Polyethylene (PE), polyethylene terephthalate (PET), Acrylonitrile Butadiene Styrene (ABS), polyvinyl chloride (PVC), Polycarbonate (PC), Polyamide (PA), polyether ketone (PEK), polyether ether ketone (PEEK) or mixtures or copolymers thereof, or a plastic composite consisting of one or more of these plastics with fibrous and/or mineral fillers.

The complementary hook profiles of the second edge pair (i.e. the upwardly open receiving hook and the downwardly open locking hook) advantageously have a retaining surface which is integrally formed on the panel core, with which the following locking effect can be achieved: the panels are prevented from moving away from each other in the plane of the panels in a direction perpendicular to the locked panel edges. The locking effect in the vertical direction perpendicular to the upper side of the panel can be achieved in a particularly user-friendly and simple manner by means of a separate locking element.

In practice, at least one of the edge pairs has a chamfer on its two complementary panel edges, which chamfer forms a recessed joint in the assembled state of the two panels.

Preferably, the chamfers of at least one of the edge pairs on its complementary panel edge are different in size, so that in the fitted state, the larger chamfers are covered by the smaller chamfers.

Furthermore, an improvement in the sealing properties can be achieved in that a projection is provided on the panel edge with the smaller chamfer, at least a part of the smaller chamfer extending on the upper side of the projection, while a corresponding impact surface for the covered part of the larger chamfer, which is undercut, is provided on the lower side of the projection.

It is practical if the smaller chamfer of the first edge pair is arranged on the groove profile and the larger chamfer on the key profile, and the smaller chamfer of the second edge pair is arranged on the locking hook and the larger chamfer on the receiving hook.

It is furthermore advantageous if, at the first edge pair and/or at the second edge pair, the counter-impact surface is inclined at an angle in the range from 1 ° to 5 ° relative to the orthogonal line on the upper side of the panel, wherein the cross section of the locking hook has an interference in the area of the inclination of the counter-impact surface and/or the cross section of the groove profile has an interference in the area of the inclination of the counter-impact surface, so that a compression between the counter-impact surface and the impact surface can be brought about in the locked state. The term "interference" refers to the relationship of two panel edges that can be spliced together. In the case of a theoretical nominal dimension of the two panel edges, the term "interference" means that, in the case of the nominal dimension, more material is present on the impact surface and/or on the counter-impact surface, so that the surface of the impact surface and/or of the counter-impact surface protrudes further than the nominal dimension at the distal end. In practice, this can involve a maximum interference of hundredths of a millimeter to a few tenths of a millimeter, which in practice produces the desired compression between the impact surface of the spliced panel edge and the corresponding impact surface. In practice, the desired pressing takes place in the upper region of the impact surface and of the counter-impact surface and can extend, for example, over half the height of the impact surface or of the counter-impact surface.

An advantageous development provides that the compression between the respective impact surface and the impact surface is greater at the upper end of the impact surface and decreases towards the lower end of the impact surface.

An alternative provides that the retaining grooves for the individual locking elements have parallel groove walls, wherein the groove walls have a constant distance from one another.

It is also useful for the retaining groove or the groove wall of the retaining groove to be arranged in an inclined manner with respect to the upper side of the panel. It is also useful if the free opening of the obliquely arranged retaining groove points upward, i.e. in the direction of the upper side of the panel. The closed joint is advantageously provided with a snap-in means by which the separate locking element can be automatically snapped into the latching notches of the complementary panel edges.

Drawings

The invention is illustrated in the figures and described in detail below according to various embodiments. It shows that:

figure 1 is a schematic view of a plurality of panels according to the invention in a composite structure,

figure 2 shows an exemplary cross section of a first edge pair of a panel according to the invention in the locked state,

figure 3 shows a cross-section of a second edge pair of a panel according to the invention in the locked state,

fig. 4 is a perspective view of two panel parts, with panel edges according to fig. 2 in the locked state and with key profiles according to fig. 1,

fig. 5 is a perspective view of two panel members in a locked state, with an alternative separate locking element,

figure 6 shows an alternative cross-section of the first edge pair of the panel according to the invention in the locked state,

figure 7 shows an alternative cross-section of the second edge pair of the panel according to the invention in the locked state,

figure 8 shows a further embodiment of a cross-section of the second edge pair of the panel according to the invention in the locked state,

figure 9 shows a further embodiment of a cross-section of the second edge pair of the panel according to the invention in the locked state,

figure 10 shows a further alternative of the cross-section of the second pair of edges of the panel according to the invention in the locked state,

fig. 11 shows a final embodiment of a cross section of the second edge pair of the panel according to the invention in the locked state.

Detailed Description

In fig. 1, four

identical panels

1, 2, 3 and 4 according to the invention are shown in a schematic manner, in part, in the manner of a composite structure with the surface of a deck being produced. The decking surface can be used for building walls, building ceilings or floors. Each of the panels according to the invention has four panel edges F, M, N and U and four corners K1, K2, K3 and K4. As shown in the following figures, the panel has a panel upper side 7, a panel lower side 8 and a panel core 9. The panel has two edge pairs. The first edge pair is shown in fig. 2 and comprises panel edges N and F, wherein panel edge N has a groove profile 5 and panel edge F has a key profile 6.

The second edge pair is shown in fig. 3 and comprises panel edges M and U, which are designed as hook profiles. Panel edge M is configured as a receiving hook 10 and panel edge U is configured as a locking hook 11. The receiving hook 10 is provided with a retaining groove 12 for a separate locking element 13. The locking element 13 is fitted and used such that it locks in the vertical direction (vertical locking element). The locking hook 11 can be connected downwards with the receiving hook 10 by means of an engaging movement in a vertical plane. If a vertical locking element 13 is used, a vertically active locking takes place automatically, as described in detail below with reference to fig. 3. Due to the two different edge pairs, the proposed panel is suitable for locking by a pivoting movement (folding down). This pivoting movement is indicated in fig. 1 by means of a panel 4, which is shown in dashed lines in an inclined initial position 4'. From its initial position 4' the panel 4 is moved downwards in the direction of the pivot arrow S by a single downward pivoting movement about the panel edge F of the panel as the axis of rotation. In this case, the panel is locked to the key profile 5 of the panels 1 and 2 of the preceding panel row P1. At the same time, panel edge U of panel 4 locks with panel edge M of panel 3 in the same panel row P2.

According to fig. 1, panel edge F (first edge pair) and panel edge U (second edge pair) meet at a corner K1 of panel 4. This angle K1 has proven to be critical for the tightness of the decking surface against penetrating water. Key profile 6 of panel edge F meets locking hook 11 of panel edge U at key angle K1.

The cross-sections of the key profile 6 and of the latching hook 11 intersect spatially and produce a complex spatial configuration at the angle K1.

In a composite structure with otherwise identical panels 1 and 3, the relevant angle K1 of panel 4 is located in the region marked IV. There, a T-shaped joint is formed, which is composed of a longitudinal joint (panel edge F/N) and a transverse joint (panel edge M/U). The view of the T-shaped joint in the viewing direction of arrow IV is explained in further detail below with respect to fig. 4.

Fig. 2 shows an exemplary cross section of a first edge pair of the pane according to the invention. This line of sight corresponds to section line II-II drawn in figure 1. The panel edges F and N of the panels 1 and 4 are opposite each other in fig. 2, as indicated in fig. 1 by the section line II-II. Panel edge F is configured with a key profile and panel edge N is configured with a complementary key profile. These complementary panel edges can be shown partially in the locked state, as if the panel had been disassembled into two parts. This form of the schematic representation should facilitate understanding of the functionality and cooperation of the complementary panel edges. The initial position 4' of the panel edge F marks the pivoting movement S. Of course, a plurality of panels of the type according to the invention can be interlocked in the same way in order to obtain a flooring surface for a building wall, floor or ceiling. Fig. 2 and 3 can therefore also be understood as two partially shown panels, respectively.

Fig. 3 shows in cross section the panel edge M of the second edge pair configured as a receiving hook 10 and the panel edge U configured as a locking hook 11, more precisely also in the closed, locked state. This line of sight direction corresponds to the section line III-III drawn in fig. 1.

On the second edge pair, locking hook 11 of panel edge M has a chamfer in the form of a larger chamfer 36 on panel upper side 7, while catch hook 10 of panel edge U is provided with a smaller chamfer 37.

The smaller bevel 37 extends over a distal projection 38 arranged at the distal end of the locking hook 11. The underside of the projection forms a counter surface 39 which in the locked state covers and is in contact with a portion of the larger bevel 36, so that a first seal against penetrating water is created. The two bevelled edges form a V-shaped engagement 40 in the locked state.

The receiving hook 10 and the locking hook 11 are locked in the vertical direction and in the horizontal direction in the split panel edge M/U. In this exemplary embodiment, for a vertical locking effect, a separate locking element 13 (vertical locking element) can be inserted into the retaining groove 12 provided for this purpose of the receiving hook 10. A latching notch 11a is provided on the latching hook, into which latching element 13 can be latched. The latching notch has a sloping lower groove wall 11b and a sloping upper groove wall 11 c.

The retaining groove 12 for the locking element 13, which is provided in the receiving hook 10, is provided with a flat lower groove wall 12a, an upper groove wall 12b and a groove bottom 12 c. The upper groove wall 12b has a step 12d which is arranged such that facing the groove bottom 12c a narrow portion of the holding groove 12 is created and such that a region with a larger width is created which is directed towards the open side of the holding groove 12.

The configuration of the retaining groove 12 with the step 12d is adapted to a known locking element 13, which is shown by way of example in fig. 3 in cross section. In the illustrated locking element 13 shown in hatched lines, the snap-in means 13a is embodied in the form of a latching tongue 13b projecting obliquely downwards, which protrudes out of the retaining groove 12. Furthermore, the locking element 13 has a retaining means 13c facing the groove bottom 12c of the retaining groove 12 and a shoulder 13d bearing on the step 12d of the upper groove wall. Suitable locking elements are known, for example, from the following publications: EP 1415056B 1, WO 2011/087425 a1 and US2014/0366476a 1.

For a horizontal locking effect, according to fig. 3, the receiving hook 3 of the panel edge M is provided at the distal end with a hook edge 41 which projects in the direction of the panel upper side 7 and with a receiving slot 42 which is open towards the panel upper side 7. The locking hook 11 of the panel edge U has a locking shoulder 43 projecting in the direction of the panel underside 8 and a locking notch 44 which opens downward. The locking shoulder 43 fits into the receiving notch 42 of the receiving hook 10 and interacts with it.

The catch hook 10 has a retaining surface 45 on the hook edge 41, which faces the panel core 9.

Likewise, a retaining surface 46, which is also directed toward the panel core 9, is provided on the locking hook 11, which retaining surface produces a lateral recess with the retaining surface 45 on the hook edge 41 and thus produces the following locking effect: the

panels

3 and 4 are prevented from moving away from each other in the panel plane in a direction perpendicular to the locked panel edge M/U (horizontally).

In the present exemplary embodiment, the locking shoulder 43 has a distal shoulder surface 48 at the shoulder underside 47, which contacts a base 49 of the receiving groove 42, and a proximal recess 50, which extends laterally to the retaining surface 46 of the locking shoulder 43. The recess 50 contributes to a good abutment of the hook edge 41 and the retaining surface 45/46 of the locking shoulder 43.

In the locking arrangement according to fig. 3, pairs of contact surfaces can also be seen, wherein the surfaces of the locking hooks 11 each come into contact with an associated surface of the complementary receiving hook 10. From top to bottom through the locking arrangement, this begins with a first interface pairing formed by the corresponding face 39 of the projection 38 of the locking hook and the covered portion of the larger oblique edge 36 arranged on the receiving hook 10.

The next contact surface pair is formed by impact surface 10a and corresponding impact surface 11 d. Impact surface 10a is arranged on catch hook 10 with panel edge M below large chamfer 36, while counter impact surface 11d is arranged on locking hook 11 with panel edge N below small chamfer 37. The impact surface 10a is arranged here perpendicularly with respect to the panel upper side 7, while the corresponding impact surface 11d is inclined by an angle of 3 ° with respect to the orthogonal line of the panel upper side 7. In this case, a material interference is provided on the upper part corresponding to the impact surface 11d, which is illustrated in fig. 3 by a dashed line as a cover E2. In the locked state, the cover portion E2 causes a compression between the contact surface pair consisting of impact surface 10 a/counter-impact surface 11d, to be precise in the upper half of the contact surface pair. This compression also creates a seal.

Figure 4 shows an isometric view of two

connected panels

3 and 4. This schematic view corresponds to the viewing direction IV, as noted in fig. 1. The key profile F of the

panels

3 and 4 can be seen in the foreground of fig. 4. The panel edge M of the panel 3 and the panel edge U of the panel 4 extend in the rearward viewing angle. According to fig. 3, panel edge M is provided with a receiving hook 10, while panel edge U is provided with a locking hook 11.

A locking notch 11a is provided on the complementary panel 4, in which locking element 13 can be automatically snapped in. The latching notches 11a also extend through the key profile 6 on the pane 4 and end as an open cross section at the key tip 19.

Furthermore, locking hook 11 (panel edge U) of panel 4 comprises a downwardly open locking notch 44, the cross section of which is shown in fig. 3. The locking notches 44 likewise extend transversely through the key profiles 6 of the panels 4 and are exposed in the lower region of the key profiles 6. The open cross-section of the locking slot 44 is exposed below the key tip 19.

Fig. 5 shows a perspective view of two panel elements of an alternative embodiment of the panel.

This alternative embodiment differs from fig. 4 in that it is designed for an alternative locking element 52. For this locking element 52, a retaining groove 53 with a rectangular cross section is provided on the receiving hook 10, into which retaining groove the locking element 52 can be preassembled. The retaining groove 53 has an upper groove wall 54 which is arranged at a distance R2 from the upper side 7 of the panel. Likewise, a latching contour, which is designed as a latching groove 55 and whose cross section is correspondingly adapted, is provided on the latching hook 11, so that the latching element 52 can automatically snap into place. The retaining groove 53 proposed in fig. 5 is arranged for the application of an arc-shaped locking element 52, as is known from US2014/0366476a1 (fig. 3b), or for a locking element known from the same document, which has rearward springing bristles (fig. 6a or 6b), which are supported on the groove bottom of the retaining groove 52.

Fig. 6 shows an alternative cross section of the first edge pair of the panel according to the invention in the locked state. The panel has a panel edge F with a key profile and a panel edge N with a groove profile. The two panel edges F and N are positively locked by the illustrated shaping of the panel edges, to be precise not only in the vertical direction but also in the horizontal direction.

Fig. 7 shows an alternative cross section of the second edge pair of the panel according to the invention in the locked state. This embodiment includes a receiving hook 56 on panel edge M and a locking hook 57 on panel edge U. A retaining groove 58 for a locking element 59 is provided in the receiving hook. The locking hook 57 has a profile 60 into which a locking element 59 can automatically snap. The retaining groove 58 for the locking element 59 is arranged substantially parallel to the upper side 7 of the panel. On the locking hook 57, a sealing sleeve G2 is provided, which engages and seals with a sealing groove W2 provided on the receiving hook 56.

Fig. 8 shows a further exemplary embodiment of the second edge pair. Catch hook 62 is in turn disposed on panel edge M and locking hook 63 is in turn disposed on panel edge U. The receiving hook 62 comprises a retaining groove 64 for a locking element 65, while the locking hook has a contour 66 in which the locking element 65 can automatically snap. In contrast to the exemplary embodiment of fig. 7, the retaining groove 64 is arranged in the receiving hook 62 in an inclined manner with respect to the panel upper side 7. A sealing sleeve G2, which engages and seals with a sealing groove W2 provided on the receiving hook 62, is provided on the locking hook 63.

Fig. 9 also shows an exemplary embodiment of a cross section of the second edge pair of the panel according to the invention in the locked state. This exemplary embodiment also has a receiving hook 68 on panel edge M and a locking hook 69 on panel edge U, which can be automatically locked in the vertical direction by means of a locking element 70. However, in this embodiment, a retaining groove 71 for the locking element 70 is provided on the locking hook 69, and the receiving hook 68 has a contour 72 into which the locking element 70 can automatically snap. Here, a sealing sleeve G3 is provided on the receiving hook 69, which sealing sleeve engages and seals with a sealing groove W3 provided on the receiving hook 68.

Fig. 10 shows a further alternative of the cross section of the second edge pair. This embodiment again has a receiving hook 74 and a locking hook 75, which can be automatically locked in the vertical direction by means of a locking element 76. As in fig. 9, in this exemplary embodiment, a retaining groove 77 for the locking element 76 is also provided on the locking hook 75. The catch hook 74 has a contour 78 into which the locking element 76 can automatically snap. Here, a sealing sleeve G3 is also provided on the receiving hook 74, which sealing sleeve engages and seals with a sealing groove W3 provided on the locking hook 75.

Fig. 11 shows a cross section of a last exemplary embodiment of the second edge pair. This last embodiment is based on the embodiment of fig. 3, wherein, unlike the embodiment of fig. 3, two sealing sleeves G2 and G4 are arranged on the locking hook. In this connection, the receiving hook has two sealing grooves W2 and W4, which together with the sealing sleeves G2 and G4 produce a better seal against penetrating or penetrating water.

List of reference numerals

1 Panel

2 panel

3 Panel

4 panel

5 groove profile

5a inner surface (upper groove wall)

6 key profile

7 Panel upper side

8 Panel underside

9 Panel core

10 receiving hook

10a impact surface

11 locking hook

11a latch notch

11b lower groove wall

11c upper groove wall

12 holding groove

12a lower groove wall

12b upper groove wall

12c groove bottom

12d step

13 locking element

13a snap-in device

13b latch tongue

13c holding device

13d shoulder

36 large bevel edge

37 minor bevel edge

38 projection

39 corresponding surface

40V-shaped joint

41 hook edge

42 receiving recess

43 locking shoulder

44 locking notch

45 holding surface (hook edge)

46 holding surface (locking hook)

47 shoulder underside

48 distal shoulder surface

49 bottom

50 concave part

52 locking element

53 holding groove

54 upper groove wall

55 locking groove

56 receiving hook

57 locking hook

58 holding groove

59 locking element

60 profile

62 receiving hook

63 locking hook

64 holding groove

65 locking element

66 profile

68 receiving hook

69 locking hook

70 locking element

71 holding groove

72 profile

74 receiving hook

75 locking hook

76 locking element

77 holding groove

78 profile

Distance D

E1 interference

E2 interference

F panel edge (Key)

G2 sealed sleeve (locking hook)

G3 sealed sleeve (receiving hook)

G4 sealed sleeve (locking hook)

Height H

Angle K1

Angle K2

Angle K3

Angle K4

L panel edge (groove)

M panel edge (receiving hook)

P1 panel row

P2 panel row

U panel seamed edge (locking hook)

S-pivot motion

W2 sealing groove (receiving hook)

W3 sealing groove (locking hook)

W4 sealing groove (receiving hook)

Claims

1. Panel (1, 2, 3, 4) having a panel core (9), a panel upper side (7), a panel lower side (8) and having a first edge pair and a second edge pair, wherein the first edge pair is provided with a groove profile (5) on a panel edge (N) and a key profile (6) complementary to the groove profile on an opposite panel edge (F), which can be locked by a pivoting movement (S) and then cooperate in a form-fitting manner such that in the locked state a vertical locking effect and a (horizontal) counter-movement of the locked panel (1, 2, 3, 4) in the plane of the panel are possible, wherein the second edge pair is provided with complementary hook profiles on its opposite panel edges, i.e. is provided with a receiving hook (10, 56, 62, 69), 74) And a locking hook (11, 57, 63, 68, 75), wherein the locking hook (11, 57, 63, 68, 75) can be engaged with the receiving hook (10, 56, 62, 69, 74) by an engaging movement in a plane perpendicular to the panel plane, simultaneously by means of a pivoting movement (S) for the first edge pair, with the proviso that: the receiving hooks (10, 56, 62) are provided with retaining grooves (12, 58, 64) or the locking hooks (68, 75) are provided with retaining grooves (71, 77) for separate locking elements (70, 76) by means of which a vertical locking effect can be achieved, wherein at least on the second edge pair an impact surface (10a) and a corresponding impact surface (11d) are provided, with the proviso that: the impact surface (10a) is arranged on the receiving hook (10, 56, 62, 69, 74) and the counter impact surface (11d) is arranged on the locking hook (11), and the impact surface and the counter impact surface are arranged essentially orthogonally with respect to the panel upper side (7), characterized in that the counter impact surface (11d) of the locking hook (11, 57, 63, 68, 75) or the impact surface (10a) of the receiving hook is provided with at least one sealing sleeve (G2), the impact surface (10a) of the receiving hook (10, 56, 62, 69, 74) or the counter impact surface (11d) of the locking hook (11, 57, 63, 68, 75) is provided with at least one sealing groove (W2) on the panel edge (M), which is form-fittingly matched to the sealing sleeve (G2), and the sealing sleeve (G2) and the sealing groove (W2) are each arranged parallel to the associated panel edge (M, U) and extend over the entire length of the impact surface (10a) or of the corresponding impact surface (11 d).

2. Panel according to claim 1, characterized in that at least one of the edge pairs has a chamfer (16, 17, 36, 37) on its two complementary panel edges (F, N, M, U), which chamfer forms a recessed joint (18, 40) in the assembled state of the two panels (1, 2, 3, 4).

3. Panel according to claim 2, characterized in that the chamfers (16, 17, 36, 37) of at least one of the edge pairs on its complementary panel edge (F, N, M, U) are of different size, such that in the mated state the larger chamfers (16, 36) are covered by the smaller chamfers (17, 37).

4. Panel according to claim 3, characterized in that a projection (14a, 38) is provided on that panel edge (N, U) which has the smaller chamfer (17, 37), at least a part of the smaller chamfer (17, 37) extending on the upper side of the projection, while on the underside of the projection (14a, 38) an undercut counter-impact surface (14b, 39) is provided for the covered part of the larger chamfer (16, 36).

5. Panel according to claim 3 or 4, characterized in that the smaller chamfer (17) of the first edge pair is arranged on the groove profile (N) and the larger chamfer (16) is arranged on the key profile (F), and the smaller chamfer (37) of the second edge pair is arranged on the locking hook (11, 57, 63, 68, 75) and the larger chamfer (36) is arranged on the receiving hook (10, 56, 62, 69, 74).

6. Panel according to any one of claims 1 to 5, characterized in that on the second pair of edges the corresponding impact surface (11d, 31) is inclined at an angle in the range of 1 ° -5 ° with respect to the orthogonal line on the panel upper side (7), the cross section of the locking hook (11, 57, 63, 68, 75) having an interference (E2) in the inclined region of the corresponding impact surface (11d) and/or the cross section of the profile groove (5) having an interference (E1) in the inclined region of the corresponding impact surface (31), so that in the locked state a compression between the corresponding impact surface and the impact surface (10a, 30) can be caused.

7. Panel according to claim 1, characterized in that the compression between the corresponding impact surface (11d, 31) and the impact surface (10a, 30) is larger at the upper end of the impact surface (10a, 30) and decreases towards the lower end of the impact surface (10a, 30).

8. Panel according to one of claims 1 to 7, characterized in that the individual locking elements (13, 59, 65, 70, 76) have snap-in means (13a) by means of which they can be snapped into the latching notches (11a) of the complementary panel edges (M).

9. Panel according to one of claims 1 to 8, characterized in that the retaining grooves (12, 58, 64, 71, 77) for the individual locking elements (13, 59, 65, 70, 76) have parallel groove walls.