PANEL COMPRISING COUPLING PARTS

Abstract

Panels for floor coverings, wall coverings or ceilings have a first pair of opposite edges and a second pair of opposite edges. The opposite edges are provided with coupling parts that allow opposite edges of such panels to be coupled in a more easy way; and/or that allow that installation patterns can be made using the panels, without requiring a second type or second configuration of panels. The panel is provided with locking elements that create a locking of the so-coupled panels in the direction perpendicular to the plane of the panels; and in the direction parallel with the panels and perpendicular to the coupled panel edges.

Claims

1.-54. (canceled)

55. A panel arranged as a floor panel for forming a floor covering, or a panel for forming a wall covering, or a panel for covering a ceiling, wherein the panel comprises a first pair of opposite edges, wherein the first pair of opposite edges comprises a first edge and an opposite second edge; wherein the first edge comprises first coupling parts; wherein the second edge comprises second coupling parts; wherein the first coupling parts comprise an upper lip, wherein the lower side of the upper lip comprises a first insert, wherein the first insert comprises a first male section and/or a first female section; wherein the second coupling parts comprise a lower lip, wherein the upper side of the lower lip comprises a second insert, wherein the second insert comprises a second female section and/or a second male section; wherein the first coupling parts are configured for coupling the panel at the first edge to the second coupling parts at the second edge of a second such panel, by means of a downward movement of the first edge of the panel relative to the second edge of the second such panel, thereby establishing a locking in the direction in the plane of the panel and perpendicular to the coupled edges and perpendicularly to the plane of the panel; wherein during such coupling the first male section of the panel engages in the second female section of the second such panel; and/or the second male section of the second such panel engages in the first female section of the panel.

56. The panel of claim 55, wherein the first insert and/or the second insert is a strip.

57. The panel of claim 55, wherein the first insert and/or the second insert have along their longitudinal direction a constant cross section.

58. The panel of claim 55, wherein the cross-section perpendicular to the first edge of the first male part and/or the cross-section perpendicular to the second edge of the second male part comprises a mushroom shape, wherein the mushroom shape comprises a stem and a mushroom head.

59. The panel of claim 58, wherein the bottom of the mushroom head comprises a concave section.

60. The panel of claim 59, wherein the female part provided for coupling with the mushroom head is configured to contact or engage with, in coupled condition of two such panels at their first pair of opposite edges, at least part of the concave section of the mushroom head, thereby locking the two panels to each other.

61. The panel of claim 58, wherein the bottom of the mushroom head comprises a flat section.

62. The panel of claim 58, wherein the bottom of the mushroom head comprises a convex section.

63. The panel of claim 55, wherein the cross-section perpendicular to the first edge of the first female part and/or the cross-section perpendicular to the second edge of the second female part comprises two legs between which a male part of a corresponding edge of a second such panel can be locked.

64. The panel of claim 63, wherein at least one of the two legs comprises an inclined extension configured to act as locking parts for locking the female part comprising the legs to a male part of another such panel.

65. The panel of claim 64, wherein at least part of the surface of the inclined extension is configured such that it can contact or engage with at least part of the concave section of a coupled such panel, wherein said contact or engagement creates a locking of the female part to the male part of the coupled such panel.

66. The panel of claim 55, wherein the first insert and/or the second insert is extruded.

67. The panel of claim 55, wherein the first insert and/or the second insert is/are out of a thermoplastic material or out of an elastomeric material.

68. The panel of claim 55, wherein during the coupling, the first female part undergoes an elastic deformation in order to engage the second male part; and/or the second female part undergoes an elastic deformation in order to engage the first male part.

69. The panel of claim 55, wherein during the coupling, the first male part undergoes an elastic deformation in order to engage the second female part; and/or the second male part undergoes an elastic deformation in order to engage the first female part.

70. The panel of claim 55, wherein the upper lip comprises a first recess defined as a groove; wherein the groove is parallel with the first edge of the panel—into which the first insert is provided, wherein the first insert is attached in the first recess by means of an adhesive or by means of geometrical or frictional constraint.

71. The panel of claim 55, wherein the lower lip comprises a second recess defined as a groove; wherein the groove is parallel with the second edge of the panel—into which the second insert is provided, wherein the second insert is attached in the second recess by means of an adhesive or by means of geometrical or frictional constraint.

72. The panel of claim 55, wherein the first edge comprises a first upper lip section more proximal to the panel than the first insert; wherein the second edge comprises a second lower lip section more distal to the panel than the second insert; wherein in coupled condition of two such panels, the first upper lip section of the first coupled panel engages with and contacts the second lower lip section of the second coupled panel; wherein the first upper lip section and the second lower lip section are made in one piece.

73. The panel of claim 55, wherein the first edge comprises a second upper lip section more distal to the panel than first insert; wherein the second edge comprises a first lower lip section more proximal to the panel than the second insert; wherein in coupled condition of two such panels, the second upper lip section of the first coupled panel engages with and contacts the first lower lip section of the second coupled panel; wherein the second upper lip section and the first lower lip section are made in one piece.

74. The panel of claim 55, wherein the first insert comprises a first male section and a first female section; wherein the second insert comprises a second male section and a second female section; wherein during coupling the first male section of the panel engages in the second female section of the second such panel; and the second male section of the second such panel engages in the first female section panel.

75. The panel of claim 74, wherein the first insert is identical to the second insert.

76. The panel of claim 74, wherein in the first insert the first male section and the first female section are provided as separate profiles.

77. The panel of claim 74, wherein in the second insert the second male section and the second female section are provided as separate profiles.

78. The panel of claim 74, wherein the first insert comprises no other male sections than the first male section and no other female section than the first female section.

79. The panel of claim 74, wherein the second insert comprises no other male sections than the second male section and no other female section than the second female section.

Description

[0077] With the intention of better illustrating some features and aspects of the present invention, here below, as examples without any limitative character, some preferred embodiments are described with reference to the attached drawings, wherein:

[0078] FIG. 1 schematically illustrates an example of a panel according to the first aspect of the invention; and at the same time illustrates an example of the first pair of opposite edges of a panel according to the second aspect of the invention.

[0079] FIG. 2 shows two panels of FIG. 1 coupled at their first pair of opposite edges.

[0080] FIGS. 3, 4, 5 and 6 show examples of inserts that can be used in the invention.

[0081] FIG. 7 shows an example of a configuration of the second pair of opposite edges as can be used in embodiments of the first aspect of the invention, and/or in the second aspect of the invention.

[0082] FIG. 8 shows two panels as shown in FIG. 7 coupled at their second pair of opposite edges.

[0083] FIG. 9 shows—in coupled condition at their second pair of opposite edges in the same way as FIG. 8—alternative panels according to the invention for the panel shown in FIG. 7.

[0084] FIG. 10 shows an example of a panel having a first pair of opposite edges according to the second aspect of the invention.

[0085] FIG. 11 shows two panels according to FIG. 10 coupled along their first pair of opposite edges.

[0086] FIGS. 12 and 13 show examples of floor covering configurations that can be installed with panels according to embodiments of the first and/or second aspect of the invention.

[0087] FIG. 14 shows a Hungarian point floor covering configuration as can be installed with panels according to the third aspect of the invention.

[0088] FIGS. 1, 2 and 3 illustrate in combination an example of a panel according to the first aspect of the invention. FIG. 1 shows a cross section perpendicular to the first pair of opposite edges (2, 3) of a panel (1) according to the first aspect of the invention. FIG. 2 illustrates two such panels (1)—panels as shown in FIG. 1—coupled to each other at their first opposite edges (2,3). FIG. 3 shows the insert that is used as first insert and as second insert in the panel of FIG. 1. The panel (1) has first pair of opposite edges (2, 3). FIG. 1 shows the cross section of the panel (1) perpendicular to the first pair of opposite edges. The first pair of opposite edges comprises a first edge (2) and an opposite second edge (3). The first edge comprises first coupling parts (4). The second edge comprises second coupling parts (5). The first coupling parts comprise an upper lip (6). The lower side of the upper lip comprises a first insert (11). The first insert comprises a first male section (12) and a first female section (13). The second coupling parts comprise a lower lip (7). The upper side of the lower lip comprises a second insert (15). The second insert comprises a second female section (17) and a second male section (16). The first coupling parts (4) are configured for coupling the panel at the first edge to the second coupling parts (5) at the second edge of a second such panel by means of a downward movement of the first edge of the panel relative to the second edge of the second such panel; thereby establishing a locking in the plane of the panel and perpendicularly to the plane of the panel, as well as in the direction perpendicular to the plane of the panels. During such coupling the first male section of the panel engages in the second female section of the second such panel; and the second male section of the second such panel engages in the first female section of the panel.

[0089] The upper surface of the upper lip forms part of the upper surface of the panel. The lower surface of the lower lip forms part of the lower surface of the panel.

[0090] The first insert (11) and the second insert (15) are strips. In the example shown, the first insert is attached in the upper lip by means of an adhesive; and the second insert is attached in the lower lip by means of an adhesive.

[0091] The first insert (11) and the second insert (15) of the example have along their longitudinal direction a constant cross section. The first insert (11) and the second insert (15) are identical extruded strips of thermoplastic material, e.g. polyvinyl chloride. It is understood that the orientation of second insert is turned over 180° around its centerline compared to orientation of the first insert.

[0092] The cross section perpendicular to the first edge of the first male part and the cross section perpendicular to the second edge of the second male part comprises a mushroom shape (20). The mushroom shape comprises a stem (21) and a mushroom head (22). The bottom of the mushroom head comprises a concave section (23). The female part of the inserts provided for coupling with the mushroom head is configured to contact or engage with in coupled condition of two such panels at their first pair of opposite edges at least part of the concave section of the mushroom head, thereby locking the two panels to each other.

[0093] The cross section perpendicular to the first edge of the first female part (13) and the cross section perpendicular to the second edge of the second female part (17) comprises two legs (26) between which a male part of a corresponding edge of a second such panel can be locked. Both legs (26) comprise an inclined extension (27) configured to act as locking parts for locking the female part comprising the legs to a male part of the insert of another such panel. At least part (28) of the surface of the inclined extension (27) is configured such that it can contact with at least part of the concave section (23) of a coupled such panel. The contact creates a locking of the female part to the male part of the coupled such panel. During the coupling, both female parts and both male parts undergo an elastic deformation in order.

[0094] The first male section (12) and the first female section (13) are provided as separate profiles in the first insert (11). The second male section (16) and the second female section (17) are provided as separate profiles in the second insert (15).

[0095] The upper lip (6) comprises a first recess (30)—consisting of a groove parallel with the first edge of the panel—into which the first insert is provided. The lower lip (7) comprises a second recess (31)—consisting of a groove parallel with the second edge of the panel—into which the second insert is provided.

[0096] The first edge (2) comprises a first upper lip section (32) more proximal to the panel than the first insert. The second edge (3) comprises a second lower lip section (33) more distal to the panel than the second insert. The first upper lip section and the second lower lip section are made in one piece. The lower side of the first upper lip section and the upper side of the second lower lip section are over part of their surface substantially parallel with the panel. As is illustrated in FIG. 2, in coupled condition of two such panels (1), the first upper lip section (32) of the first coupled panel engages with—and preferably contacts—the second lower lip section (33) of the second coupled panel.

[0097] The first edge (2) comprises a second upper lip section (34) more distal to the panel than first insert. The second edge (3) comprises a first lower lip section (35) more proximal to the panel than the second insert. The lower side of the second upper lip section (34) and the upper side of the first lower lip section (35) are over part of their surface substantially parallel with the panel. The second upper lip section and the first lower lip section are made in one piece. As is illustrated in FIG. 2, in coupled condition of two such panels, the second upper lip section of the first coupled panel engages with—and preferably contacts—the first lower lip section of the second coupled panel.

[0098] The distal end of the upper lip (6) comprises a surface (38) perpendicular to the surface of the panel. The distal end of the lower lip (7) comprises a surface (39) perpendicular to the surface of the panel.

[0099] FIG. 2 shows two panels as shown in FIG. 1 wherein the first edge of the first panel is coupled to the second edge of the second panel. However, the coupling part of the panel (1) shown in FIG. 1 are configured such that the first edge of the panel can be coupled with its coupling parts, with the first insert of the panel directed downwards, by a downward movement of the panel into the coupling parts at the first edge of a third such panel when this third panel is turned such that the first insert of the third such panel is directed upwards; wherein in the downward movement the first insert of the panel is locked into the first insert of the third such panel.

[0100] The coupling parts of the second edge (3) of the panel shown in FIG. 1 are configured such that the second edge of the panel can be coupled with its coupling parts by a downward movement of the panel with the second insert of the panel directed downwards into the coupling parts of the second edge of a fourth such panel with its second insert directed upwards, wherein in the downward movement the second insert of the panel is locked into the second insert of the fourth such panel.

[0101] The first coupling parts (4) and the second coupling parts (5) of the panel (1) shown in FIG. 1 are configured such that in coupled condition of the panel at its first edge with a second such panel at its second edge (as shown in FIG. 2), a point of symmetry (40) is provided at the coupled edges of the panel with the second such panel, at the middle of the height of the panel, such that the first coupling parts (4) of the panel are symmetrical relative to the point of symmetry with the second coupling parts (5) of the second coupled panel.

[0102] The panel (1) of FIG. 1 comprises a decorative surface at the upper surface (71); and a decorative surface at the lower surface (72).

[0103] As an alternative insert for the insert shown in FIG. 3 and used in the panel of FIG. 1, the insert shown in FIG. 4 can be used. The insert shown in FIG. 4 is to a large extent identical to the insert shown in FIG. 3. The reference numerals of FIG. 4 have the same meaning as the reference numerals of FIG. 4. The insert of FIG. 4 differs from the insert of FIG. 3 in that the bottom of the mushroom head (22) comprises a convex section (25).

[0104] Other inserts can be used in embodiments of the first aspect of the invention. Examples of such inserts are shown in FIGS. 5 and 6. FIG. 5 shows an insert (13, 17) which only comprises a female section. FIG. 6 shows an insert (11, 15) which only comprises a male section. The insert of FIG. 5 can e.g. be used in panels according to the first aspect of the invention as first insert; while these panels are provided with the insert of FIG. 6 as second insert. It is also possible to use as first insert an insert as in FIG. 5 side by side an insert as FIG. 6; the same combination can than be used as second insert.

[0105] FIG. 7 shows the cross section of a panel (1) perpendicularly to its second pair of opposite edges (42, 43). FIG. 7 shows an example of a configuration of the second pair of opposite edges as can be used in embodiments of the first aspect of the invention, and/or in the second aspect of the invention. FIG. 8 shows two panels as shown in FIG. 7 coupled at their second pair of opposite edges.

[0106] The second pair of opposite edges (42, 43) of the panel illustrated in FIGS. 7 and 8 comprises a third edge (42) and a fourth edge (43). The third edge (42) comprises third coupling parts (44). The third coupling parts comprise a male coupling part (45). The fourth edge comprises fourth coupling parts (46). The fourth coupling parts comprise a female coupling part. The third coupling parts (44) and the fourth coupling parts (46) are provided with locking elements (47, 48) for creating a locking, in the direction parallel with the plane of the coupled panels and perpendicular to the second pair of opposite edges, of the panel coupled at its third edge with the fourth edge of a second such panel (coupling which is shown in FIG. 8). The male coupling part of the third edge and the female coupling part of the fourth edge are provided for creating a locking in the direction perpendicular to the surface of the panel coupled at its third edge with the fourth edge of the second such panel. The third coupling parts and the fourth coupling parts are provided for coupling the panel at its third edge to the fourth edge of the second such panel by means of a horizontal shifting of the male coupling part of the third coupling parts into the female coupling part of the fourth coupling parts involving a snapping of the locking elements (47, 48).

[0107] The combination of FIGS. 1 and 7 provide an example of a panel (1) according to the second aspect of the invention. FIG. 1 shows a cross section of the panel (1) perpendicular to the first pair of opposite edges (2, 3). FIG. 7 shows a cross section of the panel (1) perpendicularly to the second pair of opposite edges (41, 42). The panel (1) comprises a decorative surface and at the upper surface (71) and at the lower surface (72). The panel comprises a first pair of opposite edges (2, 3). The first pair of opposite edges comprises a first edge (2) and an opposite second edge (3). The first edge comprises first coupling parts (4) and the second edge comprises second coupling parts (5). The first coupling parts (4) and the second coupling parts (5) are configured such that the panel can be coupled at its first edge with the second edge of another such panel, wherein a locking of the so-coupled panels is obtained in the direction parallel with the surface of the so-coupled panels and perpendicular to the so-coupled edges, as well as a locking of the so-coupled panels perpendicular to the surface of the so-coupled panels. The first coupling parts (4) are configured such that the panel can be coupled at its first edge (2) to the first edge (2) of another such panel, wherein the another such panel is turned upside down compared to when it is coupled with its second edge to the first edge of the panel, wherein a locking of the so-coupled panels is obtained in the direction parallel with the surface of the so-coupled panels and perpendicular to the so-coupled edges, as well as a locking of the so-coupled panels perpendicular to the surface of the so-coupled panels.

[0108] The second coupling parts (5) are configured such that the panel can be coupled at its second edge (3) to the second edge (3) of another such panel turned upside down compared to the panel, wherein a locking of the so-coupled panels is obtained in the direction parallel with the surface of the so-coupled panels and perpendicular to the so-coupled edges, as well as a locking of the so-coupled panels perpendicular to the surface of the so-coupled panels.

[0109] The panel comprises a second pair of opposite edges (42, 43). The second pair of opposite edges comprises a third edge (42) and an opposite fourth edge (43). The third edge (42) comprises third coupling parts (44). The third coupling parts are substantially third male coupling parts (45) comprising two male locking elements (47). The fourth edge (43) comprises fourth coupling parts (46). The fourth coupling parts (46) are substantially fourth female coupling parts comprising two female locking elements (48). The third coupling parts (44) and the fourth coupling parts (45) are configured for coupling the third edge of the panel to the fourth edge of another such panel wherein a locking of the so-coupled panels is obtained in the direction parallel with the surface of the so-coupled panels and perpendicular to the so-coupled edges, as well as a locking of the so-coupled panels perpendicular to the surface of the so-coupled panels and wherein the same surface of both so-coupled panels faces the room, which is the first configuration.

[0110] The third coupling parts (44) and the fourth coupling parts (45) are configured for coupling the third edge (42) of the panel to the fourth edge (43) of another such panel wherein a locking of the so-coupled panels is obtained in the direction parallel with the surface of the so-coupled panels and perpendicular to the so-coupled edges, as well as a locking of the so-coupled panels perpendicular to the surface of the so-coupled panels; and wherein one of the so-coupled panels has been turned over compared to the first configuration such that its other decorative surface faces the room compared to the first configuration.

[0111] Each of the upper surface and the lower surface of each of the first edge, the second edge, the third edge and the fourth edge comprise closing surfaces (74, 75, 76, 77)—with closing surfaces is meant that contact is created between coupled edges or that the space between the closing surfaces of coupled edges is less than 0.2 mm; such that in each of the mentioned coupled configurations decorative surfaces are obtained.

[0112] As is illustrated in FIGS. 7 and 8, the third coupling parts (44) and the fourth coupling parts (46) of the exemplary panel (1) are configured such that the third edge (42) of such panel can be coupled to the fourth edge (43) of such panel by a movement parallel with the surface of the panels and perpendicularly to the second pair of opposite edge, thereby creating a coupling by means of snapping of the third male coupling part into the fourth female coupling part. The fourth female part comprises a groove (60) between a first lip (61) and a second lip (62). The distances (D1, D2) over which the first lip (61) and the second lip (62) extend from the panel are the same.

[0113] The third coupling parts (44) comprise two male locking elements (47) for establishing a locking in the direction in the plane parallel with the panel and perpendicular to the second pair of opposite edges (42, 43). The two male locking elements (47) are symmetrically positioned relative to the plane (65) in the middle of the thickness of the panel and parallel with the panel. The fourth coupling parts (46) comprise two female locking elements (48). The two female locking elements (48) are symmetrically positioned relative to the plane (65) in the middle of the thickness of the panel and parallel with the panel. The two female locking elements (48) are provided for engagement with the two male locking element (47) in a coupling configuration of the panel at its third edge (42) with the fourth edge (43) of another such panel.

[0114] FIG. 9 shows—in coupled condition at their second pair of opposite edges in the same way as FIG. 8—an alternative panel according to the invention for the panel shown in FIG. 7, coupled to a second same panel. The panel of FIG. 9 is to a large extent similar to the panel shown in FIGS. 7 and 8. However, the panel of FIG. 9 only has one male locking element (47); and still two female locking elements (48). Similar to the panel of FIG. 7, the panel of FIG. 9 can be coupled at its third edge with a fourth edge of such panel with the same surface of both panels facing upwards; or with different surfaces of both panels facing upwards. The male locking element (47) can engage with each of the female locking elements (48), depending on the surface of the coupled panel facing the room.

[0115] FIG. 10 illustrates an example of a panel (1) having a first pair of opposite edges that can be used according to the second aspect of the invention; FIG. 10 shows a cross section of the panel perpendicular to the first pair of opposite edges. FIG. 11 shows two panels according to FIG. 10 coupled along their first pair of opposite edges.

[0116] The panel (1) comprises a decorative surface at its upper surface (71) and at its lower surface (72). The panel comprises a first pair of opposite edges (2, 3). The first pair of opposite edges comprises a first edge (2) and an opposite second edge (3). The first edge comprises first coupling parts (4). The second edge comprises second coupling parts (5). The first coupling parts (4) and the second coupling parts (5) are configured such that the panel can be coupled at its first edge with the second edge of another such panel, wherein a locking of the so-coupled panels is obtained in the direction parallel with the surface of the so-coupled panels and perpendicular to the so-coupled edges, as well as a locking of the so-coupled panels perpendicular to the surface of the so-coupled panels. The first coupling parts (4) are configured such that the panel can be coupled at its first edge (2) to the first edge (2) of another such panel, wherein the another such panel is turned upside down compared to when it is coupled with its second edge to the first edge of the panel, wherein a locking of the so-coupled panels is obtained in the direction parallel with the surface of the so-coupled panels and perpendicular to the so-coupled edges, as well as a locking of the so-coupled panels perpendicular to the surface of the so-coupled panels. The second coupling parts (5) are configured such that the panel can be coupled at its second edge (3) to the second edge (3) of another such panel turned upside down compared to the panel, wherein a locking of the so-coupled panels is obtained in the direction parallel with the surface of the so-coupled panels and perpendicular to the so-coupled edges, as well as a locking of the so-coupled panels perpendicular to the surface of the so-coupled panels.

[0117] Each of the upper surface and the lower surface of each of the first edge, the second edge, the third edge and the fourth edge comprise closing surfaces (74, 75, 76, 77).

[0118] The coupling parts of the first edge (2) and the coupling parts of the second edge (3) are configured such that in coupled condition of the panel at its first edge with a second such panel at its second edge, a point of symmetry (40)—see FIG. 11—at the middle of the height of the panel is provided at the coupled edges of the panel with the second such panel, such that the coupling parts at the first edge of the panel are symmetrical relative to the point of symmetry with the coupling parts at the second edge of the second coupled panel.

[0119] The first coupling parts (4) comprise a first tongue (50), provided out of material of the panel. The second coupling parts (5) comprise a second groove (51), out of material of the panel. The first tongue (50) and the second groove (51) are provided with locking surfaces (80) for establishing a locking in the plane of the panels and perpendicularly to the plane of the panels. The first coupling (4) parts comprise a first groove (52), provided out of material of the panel. The second coupling parts (5) comprise a second tongue (53), out of material of the panel. The first groove (52) of the panel is provided for engagement with the second tongue (53) of the another such panel. The second tongue (53) and the first groove (52) are provided with second locking surfaces (80) for establishing a locking in the plane of the panels and perpendicularly to the plane of the panels.

[0120] The first coupling parts and the second coupling parts are configured such that the panel can be coupled at its first edge with the second edge of another such panel by an angling movement (T) of the panel relative to the another such panel; and/or by means of a horizontal movement (S) of the one panel towards the another such panel.

[0121] FIG. 12 shows an example of a floor covering configuration that can be installed with floor panels according to the second aspect of the invention. The installation of this floor covering configuration can be done with one type/one configuration of panels only, more specifically with panels according to the second aspect of the invention. The panels are rectangular and oblong (however, it is also possible to make such floor covering configuration with square panels). The panels have a decorative surface on both panel surfaces. The decorative surface of one side of the panel is indicated in FIG. 12 with “A”, whereas the decorative surface of the other side of the panel is indicated in FIG. 12 with panel “B”. In rows of the panel configuration (the rows are defined in the direction parallel with the long edges of the panels), panels with their A-side facing the room alternate with panels with their B-side facing the room. Examples of panels that can be used for such panel configuration have at their long sides the first pair of opposite edges (2, 3)—a first edge (2) and an opposite second edge (3)—as shown in FIG. 1 or 10; and at their short sides the second pair of opposite edges (42, 43) as shown in FIG. 7 or 9. When installing panels in such configuration, a panel can be first coupled with its first or second edge to the first and second edge of previously installed panels, followed by a horizontal movement of the new panel parallel with its first pair of opposite edges to couple the new panel at its short edge with a previously installed panel. This horizontal shifting is illustrated with “S” in FIG. 12.

[0122] FIG. 13 shows an example of a floor covering configuration that can be installed with panels according to specific embodiments of the first aspect of the invention. The installation of this floor covering configuration can be done with one type/one configuration of panels only, more specifically with panels according to the second aspect of the invention. The panels are rectangular and oblong (however, it is also possible to make such floor covering configuration with square panels). The panels have a decorative surface on both panel surfaces. The decorative surface of one side of the panel is indicated in FIG. 12 with “A”, whereas the decorative surface of the other side of the panel is indicated in FIG. 12 with panel “B”. In rows of the panel configuration (the rows are defined in the direction parallel with the long edges of the panels), all panels have their same side facing the room, thus all with their A-side or with their B-side. Rows with the A-side facing the room can be coupled to rows with their B-side facing the room or with their A-side facing the room. Examples of panels that can be used for such panel configuration have at their long sides the first pair of opposite edges (2, 3)—a first edge (2) and an opposite second edge (3)—as shown in FIG. 1 or 10. At their short sides the second pair of opposite edges is in the example also configured in the same way as the first pair of opposite edges shown in FIG. 1 or 10.

[0123] FIG. 14 shows a Hungarian point floor covering configuration as can be installed with panels according to the fourth aspect of the invention. The Hungarian point floor covering configuration is laid with one type of panels only, panels according to the fourth aspect of the invention.

[0124] The panels comprise a decorative at the upper surface (A) and at the lower surface (B). The panel comprises a first pair of opposite edges (2, 3). The first pair of opposite edges comprises a first edge (2) and an opposite second edge (3). The panels comprise a second pair of opposite edges, wherein the second pair of opposite edges comprises a third edge (91) and an opposite fourth edge (92). The first pair of opposing edges are not perpendicular to the second pair of opposing edges.

[0125] A first such panel (81) is coupled along its third edge (91) with the fourth edge (92) of a second such panel (82). The first such panel (81) and the second such panel (82) are positioned with their same surface (A) facing the room. The first such panel (81) is coupled along its first edge (2) with the first edge (2) of a third such panel (83). The third such panel (83) is positioned with the other surface (B) facing the room than the first such panel (81). The first such panel (81) is coupled along its second edge (3) with the second edge (3) of a fourth such panel (84). The fourth such panel (84) is positioned with the other surface (B) facing the room than the first such panel (81).

[0126] The first pair of opposite edges of the floor panels used in the Hungarian point floor covering configuration can be configured as the first pair of opposite edges as shown in FIG. 1 or 10. The second pair of opposite edges can be provided according to known technology, e.g. classical tongue-groove coupling parts that comprise locking elements. The second pair of opposite edges can also be configured according to the second pair of opposite edges of the second aspect of the invention. The second pair of opposite edges can also be configured in an analogous way as the first pair of opposite edges according to the second aspect of the invention.