Mechanical locking system for floor panels
Building panels, especially floor panels are shown, which are provided with a locking system comprising several clips connected to a panel edge comprising a recess formed in a lower lip or in the tongue. Each clip may include an upwardly extending locking element, which is configured to cooperate with a locking groove for locking the two edges in a horizontal direction.
1. Building panels provided with a locking system comprising a tongue groove at a first edge of a first panel, the tongue groove being configured to cooperate with a tongue at a second edge of a second panel for locking in a vertical direction and the tongue groove comprising an upper lip and a lower lip,
wherein the locking system further comprises one or more clips configured to be attached to the first edge, wherein an inner part of each clip comprises a fixing element configured to cooperate with a downwardly open fixing groove provided in a rear side of the first panel for locking the one or more clips to the first edge in a horizontal direction, and wherein each clip comprises a locking protrusion protruding upwardly, said locking protrusion being configured to lock the one or more clips to the first edge in a vertical direction,
wherein the lower lip or the tongue comprises a recess, the locking protrusion being positioned in said recess in a locked position,
wherein the locking system comprises a sliding surface configured to guide the tongue into the tongue groove during locking and/or to position the one or more clips horizontally against the lower lip, and
wherein a length direction extends along the first and second edges perpendicularly to the vertical and horizontal directions, and wherein in the locked position, the locking protrusion does not extend beyond the recess in the length direction.
2. The building panels according to claim 1 , wherein each clip comprises at least one guiding part comprising said sliding surface.
3. The building panels according to claim 2 , wherein said at least one guiding part engages with the lower lip in the locked position.
4. The building panels according to claim 1 , wherein the sliding surface is an upwardly extending or inclined sliding surface.
5. The building panels according to claim 1 , wherein the lower lip comprises said sliding surface.
6. The building panels according to claim 1 , wherein the locking system further comprises a downwardly open locking groove formed at the second edge and wherein each clip comprises an upwardly extending locking element, which is configured to cooperate with the locking groove for locking the first edge and the second edge in a horizontal direction.
7. The building panels according to claim 6 , wherein the locking protrusion is provided between the locking element and the fixing element.
8. The building panels according to claim 1 , wherein the recess extends along a portion of the first edge or second edge.
9. The building panels according to claim 1 , wherein a part of the locking protrusion is located in the tongue groove.
10. The building panels according to claim 1 , wherein a part of the locking protrusion is located below the tongue.
11. The building panels according to claim 1 , wherein said locking protrusion is spaced horizontally inwardly in the tongue groove beyond an outer tip of the tongue.
12. The building panels according to claim 1 , wherein the locking protrusion comprises a first part extending upwardly from a clip body and a second part extending inwardly into the tongue groove.
13. The building panel according to claim 1 , wherein the locking protrusion is located inwardly and spaced horizontally from a vertical plane defined by immediately juxtaposed upper parts of the first edge and the second edge, the vertical plane being provided perpendicularly to a horizontal plane extending parallel to a front side of the first panel and the second panel.
14. The building panels according to claim 1 , wherein the first panel and the second panel comprise a core of plastic material and/or a surface of thermoplastic material.
15. The building panels according to claim 1 , wherein the first panel and the second panel comprise a core with an upper core layer and a lower core layer and wherein the locking protrusion protrudes vertically beyond the lower core layer.
16. The building panels according to claim 1 , wherein the recess extends vertically from an upper to a lower part of the lower lip.
17. The building panels according to claim 1 , wherein the locking system is configured to be locked with angling and/or horizontal snapping.
18. The building panels according to claim 1 , wherein the inner part extends inwardly from the first edge and an outer part of each clip extends outwardly from the first edge.