# US 10,480,196 B2 · Building panel with a mechanical locking system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,480,196 B2 - Document ID: US10480196B2 - Status: Granted - Kind: B2 - Application number: 16/163,693 - Filed: 2018-10-18 - Published: 2019-02-14 - Granted: 2019-11-19 - Earliest claimed: 2012-04-04 - Assignees: Välinge Innovation AB - Applicants: VäLinge Innovation AB - Inventors: Christian Boo - Web page: https://patentgrep.com/patent/US10480196B2 ## CPC - E04F 13/076: characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections {(not used, see E04F13/0889)} - E04B 1/541: {Joints substantially without separate connecting elements, e.g. jointing by inter-engagement} - E04C 2/38: with attached ribs, flanges, or the like, e.g. framed panels (concerned with attaching to other panels or elements to form a structure, see the places for the relevant structure, e.g. E04B2/00) - E04F 13/0889: {characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections} - E04F 13/0894: {with tongue and groove connections} - E04F 15/02038: {characterised by tongue and groove connections between neighbouring flooring elements} - E04F 15/10: of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite {tiles}, hardboard {, or with a top layer of other materials} - E04F 2201/0138: by moving the sheets, plates or panels perpendicular to the main plane - E04F 2201/0146: with snap action of the edge connectors - E04F 2201/023: with a continuous tongue or groove - E04F 2201/041: Tongues or grooves with slits or cuts for expansion or flexibility - E04F 2201/042: with grooves positioned on the rear-side of the panel - E04F 2201/043: with tongues and grooves being formed by projecting or recessed parts of the panel layers - E04F 2201/044: with tongues or grooves comprising elements which are not manufactured in one piece with the sheets, plates or panels but which are permanently fixedly connected to the sheets, plates or panels, e.g. at the factory - E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B) - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S) ## Abstract Building panels provided with a mechanical locking system including a tongue, at an edge of a first panel, cooperating with a tongue groove, at an edge of an adjacent second panel, for vertical locking of the building panels. The edge of the first panel is provided with a displacement groove, which is downwardly open, and includes an inner wall, an outer wall, and an upper wall. The tongue is formed out of the edge of the first panel. A resilient and displaceable and part of the tongue is displaceable into the displacement groove. ## Claims ### Claim 1 Building panels provided with a mechanical locking system comprising a tongue, at an edge of a first panel, cooperating with a tongue groove, at an edge of an adjacent second panel, for vertical locking of the building panels wherein the tongue comprises a resilient and displaceable tongue part, the edge of the first panel is provided with a displacement groove to obtain the resilient and displaceable tongue part, said displacement groove is downwardly open, and comprises an inner wall, an outer wall and a planar upper wall, the tongue is formed out of the edge of the first panel, the resilient and displaceable tongue part is configured to be displaced into the displacement groove by a lower lip of the tongue groove during assembling of the first and the second panel by a vertical displacement of the second panel toward the first panel, the outer wall of the displacement groove at a first and upper part of the displacement groove, at the upper surface of the tongue, is sidewardly open, such that, in a stress-free state before the resilient and displaceable tongue part is displaced into the displacement groove, the resilient and displaceable tongue part is entirely located vertically lower than the planar upper wall of the displacement groove, and the outer wall of the displacement groove at a second part of the displacement groove, below the resilient and displaceable part of the tongue, is sidewardly open. ### Claim 2 (depends on 1) Building panels as claimed in claim 1, wherein the upper wall is vertically positioned at an upper surface of the resilient and displaceable tongue part. ### Claim 3 (depends on 2) Building panels as claimed in claim 2, wherein the upper wall is configured to guide the resilient and displaceable tongue part. ### Claim 4 (depends on 2) Building panels as claimed in claim 2, wherein the upper wall is configured to cooperate with the upper surface of the resilient and displaceable tongue part for the vertical locking. ### Claim 5 (depends on 1) Building panels as claimed in claim 1, wherein the second part is configured to guide the resilient and displaceable tongue part during the assembling. ### Claim 6 (depends on 1) Building panels as claimed in claim 1, wherein the second part cooperates with the resilient and displaceable tongue part for the vertical locking. ### Claim 7 (depends on 1) Building panels as claimed in claim 1, wherein the tongue comprises fixed parts at the side of the resilient and displaceable tongue part. ### Claim 8 (depends on 7) Building panels as claimed in claim 7, wherein the tongue groove comprises recesses, which correspond to the fixed parts of the tongue. ### Claim 9 (depends on 1) Building panels as claimed in claim 1, wherein a contact surface of a lower lip of the tongue groove cooperates, for the vertical locking, with a lower surface of the resilient and displaceable tongue part. ### Claim 10 (depends on 9) Building panels as claimed in claim 9, wherein the contact surface is arranged such that when the resilient and displaceable tongue part springs back, during the assembling of the building panels, the resilient and displaceable tongue part is prevented from reaching its original position. ### Claim 11 (depends on 1) Building panels as claimed in claim 1, wherein the tongue has several resilient and displaceable tongue parts and that the edge of the first panel is provided with several displacement grooves. ### Claim 12 (depends on 1) Building panels as claimed in claim 1, wherein the edge of the first panel and the edge of the second panel are provided with upper overlapping surfaces. ### Claim 13 (depends on 1) Building panels as claimed in claim 1, wherein the displacement groove is provided with an elastic material therein. ### Claim 14 Building panels provided with a mechanical locking system comprising a tongue, at an edge of a first panel, cooperating with a tongue groove, at an edge of an adjacent second panel, for vertical locking of the building panels wherein the tongue comprises a resilient and displaceable tongue part, the edge of the first panel is provided with a displacement groove to obtain the resilient and displaceable tongue part, said displacement groove is downwardly open, and comprises an inner wall, an outer wall and a planar upper wall, the tongue is formed out of the edge of the first panel, the resilient and displaceable tongue part is configured to be displaced into the displacement groove by a lower lip of the tongue groove during assembling of the first and the second panel by a vertical displacement of the second panel toward the first panel, the outer wall of the displacement groove at a first and upper part of the displacement groove, at the upper surface of the tongue, comprises a sidewardly-facing cut, such that, in a stress-free state before the resilient and displaceable tongue part is displaced into the displacement groove, the resilient and displaceable tongue part is entirely located vertically lower than the planar upper wall of the displacement groove, and the outer wall of the displacement groove at a second part of the displacement groove, below the resilient and displaceable part of the tongue, is sidewardly open. ### Claim 15 (depends on 14) Building panels as claimed in claim 14, wherein the upper wall is vertically positioned at an upper surface of the resilient and displaceable tongue part. ### Claim 16 (depends on 14) Building panels as claimed in claim 14, wherein the upper wall is configured to guide the resilient and displaceable tongue part. ### Claim 17 (depends on 14) Building panels as claimed in claim 14, wherein the upper wall is configured to cooperate with the upper surface of the resilient and displaceable tongue part for the vertical locking. ### Claim 18 (depends on 14) Building panels as claimed in claim 14, wherein the second part is configured to guide the resilient and displaceable tongue part during the assembling. ### Claim 19 (depends on 14) Building panels as claimed in claim 14, wherein the second part cooperates with the resilient and displaceable tongue part for the vertical locking. ### Claim 20 (depends on 14) Building panels as claimed in claim 14, wherein the tongue comprises fixed parts at the side of the resilient and displaceable tongue part. ### Claim 21 (depends on 20) Building panels as claimed in claim 20, wherein the tongue groove comprises recesses, which correspond to the fixed parts of the tongue. ### Claim 22 (depends on 14) Building panels as claimed in claim 14, wherein a contact surface of a lower lip of the tongue groove cooperates, for the vertical locking, with a lower surface of the resilient and displaceable tongue part. ### Claim 23 (depends on 22) Building panels as claimed in claim 22, wherein the contact surface is arranged such that when the resilient and displaceable tongue part springs back, during the assembling of the building panels, the resilient and displaceable tongue part is prevented from reaching its original position. ### Claim 24 (depends on 14) Building panels as claimed in claim 14, wherein the edge of the first panel and the edge of the second panel are provided with upper overlapping surfaces. ### Claim 25 (depends on 14) Building panels as claimed in claim 14, wherein the displacement groove is provided with an elastic material therein.