Floor panels which are provided with a mechanical locking system including tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other. A set of floor panel provided with a locking system including a displaceable tongue in a displacement groove in a first edge of a first floor panel, cooperating for vertical locking of the edges with a tongue groove in adjacent second edges of a second floor panel, the locking system further including a locking strip with a locking element in one edge which cooperates, for horizontal locking of the edges, with a locking groove in an adjacent edge, the displaceable tongue includes a protrusion and the displacement groove a cavity, the protrusion is slideable against a wall of the cavity to obtain a displacement of the tongue in a first direction perpendicular to the edges and thereby the vertical locking of the edges.

A floor panel for forming a floor covering, wherein this floor panel is at least composed of a substrate; wherein the floor panel, on at least one pair of opposite edges, comprises coupling parts, which coupling parts allow that two of such floor panels can be coupled to each other by means of a downward movement of one floor panel in respect to the other floor panel; wherein these coupling parts, in the coupled condition of two of such floor panels, form a first locking system, which effects a locking in a first direction perpendicular to the plane of the floor panels, and form a second locking system, which effects a locking in a second direction perpendicular to the edges and in the plane of the floor panels.

Floor panels are shown, which are provided with a mechanical locking system on long and short edges allowing installation with vertical snap folding that could be accomplished automatically without tools and where the short edge locking system has a tongue made in one piece with the panel. The floor panels may have a first and a second connector at the long edges that are configured to obtain a minimum of friction facilitating a displacement, by a spring back force from the bending of a short edge locking strip, of a new panel in a horizontal direction along the long edge during the vertical snap folding action.

A set of building panels including a first mechanical locking system at respective first and second opposite edges. The first mechanical locking system including at one of the first or second opposite edges a tongue groove configured to receive a locking tongue of the other of the first or second edges, for vertical locking of adjacent essentially identical panels in an assembled position. The locking tongue includes an essentially horizontal and/or upwards-facing upper surface. A second mechanical locking system is formed on respective third and fourth opposite edges. The second mechanical locking system includes at one of the third or fourth edges a wedge groove configured to receive a displaceable locking tongue, for vertical locking of essentially identical adjacent panels in an assembled position. The displaceable locking tongue is configured to displace in a displacement groove provided in the said other of the third or fourth edge.

Floor panel for forming a floor covering, wherein this floor panel is at least composed of a substrate; wherein the floor panel, on at least one pair of opposite edges, comprises coupling parts, which coupling parts allow that two of such floor panels can be coupled to each other by means of a downward movement of one floor panel in respect to the other floor panel; wherein these coupling parts, in the coupled condition of two of such floor panels, form a first locking system, which effects a locking in a first direction perpendicular to the plane of the floor panels, and form a second locking system, which effects a locking in a second direction perpendicular to the edges and in the plane of the floor panels.

The invention relates to a multi-purpose tile system, in particular a floor tile system, comprising a plurality of multi-purpose tiles, in particular floor tiles, wall tiles, or ceiling tiles. The invention also relates to a tile covering, in particular floor covering, ceiling covering, or wall covering, consisting of mutually coupled tiles according to the invention. The invention further relates to a tile for use in multi-purpose tile system according to the invention.

A floor panel for forming a floor covering, wherein this floor panel is at least composed of a substrate; wherein the floor panel, on at least one pair of opposite edges, comprises coupling parts, which coupling parts allow that two of such floor panels can be coupled to each other by means of a downward movement of one floor panel in respect to the other floor panel; wherein these coupling parts, in the coupled condition of two of such floor panels, form a first locking system, which effects a locking in a first direction perpendicular to the plane of the floor panels, and form a second locking system, which effects a locking in a second direction perpendicular to the edges and in the plane of the floor panels.

Floor panels which are provided with a mechanical locking system including tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other. A set of floor panel provided with a locking system including a displaceable tongue in a displacement groove in a first edge of a first floor panel, cooperating for vertical locking of the edges with a tongue groove in adjacent second edges of a second floor panel, the locking system further including a locking strip with a locking element in one edge which cooperates, for horizontal locking of the edges, with a locking groove in an adjacent edge, the displaceable tongue includes a protrusion and the displacement groove a cavity, the protrusion is slideable against a wall of the cavity to obtain a displacement of the tongue in a first direction perpendicular to the edges and thereby the vertical locking of the edges.

A floor panel for forming a floor covering, wherein this floor panel is at least composed of a substrate; wherein the floor panel, on at least one pair of opposite edges, comprises coupling parts, which coupling parts allow that two of such floor panels can be coupled to each other by means of a downward movement of one floor panel in respect to the other floor panel; wherein these coupling parts, in the coupled condition of two of such floor panels, form a first locking system, which effects a locking in a first direction perpendicular to the plane of the floor panels, and form a second locking system, which effects a locking in a second direction perpendicular to the edges and in the plane of the floor panels.

A set of panels including first and second panels. The first and second panels respectively include first and second edges. The first edge includes a locking strip with a locking element configured to cooperate with a locking groove at the second edge for locking the first edge to the second edge. The locking element includes a first locking surface at a first angle from a plane parallel to the first panel surface and the locking groove includes a second locking surface at a second angle from a plane parallel to the third panel surface. The first angle is different from the second angle such that the first locking surface converges towards the second locking surface at a cooperation part in a locked position. The first locking surface cooperates with the second locking surface at the cooperation part.