Välinge Innovation AB

A locking device including a spring, such as a static load spring, and a locking part, such as a locking pin or a locking disc, for locking two elements to one another includes connecting elements and U-shaped portions in a sequence. The U-shaped portions connect two connecting elements at a first end of said two connecting elements, respectively, wherein the two connecting elements converges towards each other towards a second end of the two connecting elements, respectively, in a non-compressed state, such that the sequence of connecting elements and U-shaped portions form a meandering shape.

A set of building panels including a locking device for locking a first edge portion of a first panel to a second edge portion of a second panel. The locking device includes a locking element extending upwards from a lower strip provided in the first edge portion, and a locking member extending downwards from an upper strip provided in the second edge portion, wherein the locking element and the locking member are configured to cooperate for horizontal locking. The locking device further includes a protrusion and a groove configured to cooperate for vertical locking. A perpendicularly arranged fourth edge portion of the second panel includes a tongue configured to cooperate with a tongue groove of an adjacent panel for vertical locking. The protrusion extends inwardly of the tongue in a direction along the second edge portion.

A set of panels each including a main surface, a first edge, an opposite second edge, a third edge which is adjacent to the first edge and a fourth edge which is opposite to the third edge. The set includes a mechanical locking device which is configured to lock the first edge to the second edge. The locking device includes a flexible tongue. The flexible tongue includes a central part configured to cooperate with a tongue groove for locking. A first edge part and the tongue groove are configured such that when in the locked position a force P′ is applied adjacent the first edge and the third edge of the first panel and another force P is applied adjacent the second edge and the third edge of the second panel, the first edge part is pushed towards a bottom surface of an insertion groove which allows a disassembling.

A building panel having a thickness (D) after pressing and including a substrate, a first sub-layer including a binder arranged on a first side of the substrate and a surface layer including a first wood veneer, arranged on the first sub-layer, wherein the building panel has a thickness distribution of about ±7.5%, the thickness distribution defined by the formula: ((D max −D min )/(D max +D min ))×100 and a method for producing a building panel.

A set of panels includes a locking device for locking a first edge portion of a first panel to a second edge portion of a second panel. The locking device includes a horizontal locking device and a vertical locking device. The vertical locking device includes a separate tongue arranged in an insertion groove of the first edge portion and a tongue groove provided in the second edge portion. In a vertically locked state of the first and second edge portions, an abutment member provided at a longitudinal end portion of the separate tongue cooperates with a stop surface of the second edge portion, and a locking portion of the separate tongue cooperates with the tongue groove.

A method for producing a building panel is provided. The method comprises providing a substrate ( 1 ), providing a front-layer mix ( 3 ) comprising a thermosetting binder in powder form and unreacted urea in powder form, applying said front-layer mix ( 7 ) on a front surface ( 4 ) of the substrate ( 1 ), thereby forming a front layer ( 2 ), and thereafter applying heat and pressure to the front layer ( 2 ) and the substrate ( 1 ), thereby at least partially curing the thermosetting binder and the urea, to form said building panel. A building panel is also provided. Additionally, use of unreacted urea as a formaldehyde scavenger in production of building materials, such as building panels, is provided.

A continuous press arrangement for manufacture of building panels, such as floor or wall panels, comprises an upper rotatable inlet drum connecting to an upper rotatable outlet drum via an upper continuous press belt and a lower rotatable inlet drum connecting to a lower rotatable outlet drum via a lower continuous press belt. The press belts are configured to form a product path therebetween for feeding a product in a feeding direction in response to rotation of said drums or displacement of the press belt(s). An upper and a lower press table each comprise a cushion configured to be displaced into sealing abutment with the press belt for facilitating a pressure zone. The inlet drums form respective angles phi between the respective press belts and the product path at a position being downstream the inlet drums and upstream the pressure cushion or press table, in the feeding direction.

A method to produce a veneered element, including providing a first layer of a first powder and applying a second layer of a second powder above the first layer. Further the method includes applying a veneer layer above the second layer. Thereafter heating and pressing the first layer, the second layer and the veneer layer together to form the veneered element and forming a bevel at least partly along at least one side portion of the veneered element, where the first layer, the second layer and the veneer layer are at least partly exposed in the bevel.

A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, wherein the first panel includes a first edge surface, the second panel includes a second panel surface, the first edge surface is facing the second panel surface in a locked position of the first and the second panel, the mechanical locking device includes at least one rod-shaped element at the first edge surface, at least one insertion groove at the second panel surface, the rod-shaped element is configured to be inserted into the insertion groove, the rod-shaped element extends at a first angle from the first edge surface, the insertion groove extends into the second panel surface at a second angle from the second panel surface, the mechanical locking device further including at least one locking groove.

A method to produce a panel with an embossed structure, including forming a substrate by a continuous process, wherein the substrate includes a polymer based material, providing a printed polymer based film, applying the printed polymer based film on the substrate, the printed polymer based film being continuously applied on the substrate, pressing the printed polymer based film to the substrate, thereby forming a laminated substrate, and embossing the laminated substrate by an embossing device having a perimeter, such that the laminated substrate obtains an embossed structure, dividing the laminated substrate into panels, each panel having a length and a width, and wherein the perimeter of the embossing device divided by the length of said panel is a non-integer.