Floor panel and methods for manufacturing floor panels
US-2020353722-A1 · Nov 12, 2020 · US
US11834845B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11834845-B2 |
| Application number | US-202117524952-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2021 |
| Priority date | Sep 24, 2019 |
| Publication date | Dec 5, 2023 |
| Grant date | Dec 5, 2023 |
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Building panels, such as a floor panels or wall panels, which include a first mechanical locking system at respective parallel and opposite third and fourth edges, such as long edges, configured to cooperate for horizontal and vertical locking between two adjacent building panels, preferably by a folding motion. The panels further include a second locking system at respective parallel and opposite first and second edges, such as short edges, configured to cooperate for horizontal and vertical locking of two adjacent building panels. An upper edge portion of one of the third edge or fourth edge, preferably the third edge, includes a first lower lip portion configured to cooperate with a first upper lip portion of an upper edge portion of the other of the third and fourth edge of an adjacent panel when the third and fourth edges are arranged in locking engagement.
Opening claim text (preview).
The invention claimed is: 1. A set of similar or essentially identical building panels comprising a first mechanical locking system at respective parallel and opposite third and fourth edges, the first mechanical locking system comprising at the third edge a locking groove configured to receive a first locking tongue of a fourth edge of an adjacent panel by means of a folding displacement of the adjacent panel for, horizontal and vertical locking between two adjacent building panels, and a second mechanical locking system at respective parallel and opposite first and second edges, configured to cooperate for horizontal and vertical locking of two adjacent building panels, wherein an upper edge portion of one of the first edge or the second edge comprises a second lower lip portion configured to cooperate with a second upper lip portion of an upper edge portion of an other of the first and second edges of an adjacent panel when said first and second edges are assembled in locking position, and wherein the second upper lip portion of the second edge is configured to form a tight fit around the second lower lip portion when the first lower lip portion is received under the second upper lip portion in response to the vertical displacement. 2. The set according to claim 1 , wherein the second mechanical locking system comprises at the first edge a second locking groove configured to receive a second locking tongue of a second edge of an adjacent panel by means of a folding displacement of the adjacent panel for vertical locking between the first edge and a second edge of an adjacent building panel, wherein the second locking tongue and the second upper lip portion of the second edge are configured to form a tight fit around the second lower lip portion when the second lower lip portion is received under the second upper lip portion in response to a folding displacement of the adjacent panel about the second edge thereof. 3. The set according to claim 2 , wherein a first dimension extends in a vertical direction between an upper surface of the second tongue groove and the second lower lip portion, and wherein a second dimension extends between in a vertical direction between an upper surface of the second locking tongue and the second upper lip portion. 4. The set according to claim 3 , wherein the second dimension is 0 to 0.15 mm smaller than the first dimension. 5. The set according to claim 3 , wherein the first dimension and the second dimension are dimensioned to provide a B-force fit or interference fit when the second lower lip portion is received under the second upper lip portion in response to said folding displacement. 6. The set according to claim 3 , wherein the second dimension is configured to be under-dimensioned in relation to the first dimension. 7. The set according to claim 3 , wherein the second locking tongue and/or the second upper lip portion are configured to flex in response to receiving the second lower lip portion. 8. The set according to claim 1 , wherein an upper edge portion of one of the third edge or fourth edge comprises a first lower lip portion configured to cooperate with a first upper lip portion of an upper edge portion of the other of the third and fourth edge of an adjacent panel when said third and fourth edges are assembled in locking position, and wherein the first upper lip portion of the fourth edge is configured to form a tight fit around the first lower lip portion when the first lower lip portion is received under the first upper lip portion in response to said folding displacement. 9. The set according to claim 8 , wherein the fourth edge comprises a third tongue groove formed between the first upper lip portion and the first locking tongue, the third tongue groove being configured to receive a third locking tongue of a third edge of an adjacent panel in response to said folding displacement of the first panel, wherein the third locking tongue is formed between the first tongue groove and the first upper lip portion. 10. The set according to claim 8 , wherein the third tongue groove is configured to receive the third locking tongue in by means of a folding displacement of the adjacent panel about the fourth edge thereof. 11. The set according to claim 8 , wherein a first dimension extends in a vertical direction between an upper surface of the first tongue groove and the first lower lip portion, and wherein a second dimension extends between in a vertical direction between an upper surface of the first locking tongue and the first upper lip portion. 12. The set according to claim 11 , wherein the second dimension is 0.01 to 0.15 mm smaller than the first dimension. 13. The set according to claim 11 , wherein the first dimension and the second dimension is configured and dimensioned to provide an interference fit when the third locking tongue is received in the third tongue groove. 14. The set according to claim 11 , wherein the first dimension and the second dimension are configured to form a tight fit around the first lower lip portion when the first lower lip portion is received under the first upper lip portion in response to said folding displacement. 15. The set according to claim 11 , wherein the second dimension is configured with a negative tolerance in relation to the first dimension. 16. The set according to claim 11 , wherein the second dimension is configured to be under-dimensioned in relation to the first dimension. 17. The set according to claim 11 , wherein the first locking tongue and/or the first upper lip portion are configured to flex in response to receiving the third locking tongue. 18. The set according to claim 8 , wherein the lip portions each of comprises a planar horizontal surface. 19. The set according to claim 8 , wherein the first lower lip portion is continuous with the second lower lip portion. 20. The set according to claim 8 , wherein said lip portions are contiguous with each other. 21. The set according to claim 8 , wherein the first upper lip portion is configured to bear on the first lower lip portion when adjacent panels are assembled in locking position by means of the first locking system. 22. The set according to claim 8 , wherein the first and locking systems each comprises a locking tongue and a tongue groove, wherein said lip portions are disposed between a respective of said locking tongue or tongue groove and the front surface of the panel. 23. The set according to claim 8 , wherein said upper edge portion of the second edge and/or fourth edge, each comprises a vertically extending edge portion extending from the front surface followed by a contiguous bend inwards towards a centre of the panel. 24. The set according to claim 23 , wherein said bend comprises a right-angle bend. 25. The set according to claim 8 , wherein said upper edge portion of the first edge and/or third edge each comprises a vertically extending edge portion extending from the front surface followed by a contiguous bend outwards away from the centre of the panel. 26. The set according to claim 1 , wherein the second mechanical locking system is essentially identical the first mechanical locking system. 27. The set according to claim 1 , wherein said tight fit is obtained before and/or after treatment of the panel. 28. The set according to claim 1 , wherein the second upper lip portion is configured to bear
with tongues and grooves being formed by projecting or recessed parts of the panel layers · CPC title
Undercut connections, e.g. using undercut tongues or grooves · CPC title
composed of several layers, e.g. sandwich panels or layered panels (layered products as such in general B32B; producing decorative panels or veneers B44C5/04; E04F13/0864, E04F13/0875 take precedence) · CPC title
with tongue and groove connections · CPC title
composed of several layers, e.g. sandwich panels (layered products in general B32B; producing decorative panels or veneers B44C5/04) · CPC title
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