Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/02—Flooring or floor layers composed of a number of similar elements
  • E04F15/02038—Flooring or floor layers composed of a number of similar elements characterised by tongue and groove connections between neighbouring flooring elements
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/02—Flooring or floor layers composed of a number of similar elements
  • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
  • E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F15/00—Flooring
  • E04F15/02—Flooring or floor layers composed of a number of similar elements
  • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
  • E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F2203/00—Specially structured or shaped covering, lining or flooring elements not otherwise provided for
  • E04F2203/08—Specially structured or shaped covering, lining or flooring elements not otherwise provided for with a plurality of grooves or slits in the back side, to increase the flexibility or bendability of the elements

Definitions

• the invention relates to a plate-shaped building element, in particular a floor panel.
• Panel-shaped building elements particularly flooring elements, in the form of laminate with core layers made of compacted fiber materials are common.
• a multi-layered wear layer is usually provided on top of the core layers.
• Panel-shaped building elements with a wear layer containing a decorative or covering layer made of real wood are also very popular and beneficial for living.
• Such building elements create a natural living environment, are pleasantly warm underfoot, and balance out humidity fluctuations in the room air, thereby contributing to a healthy indoor climate.
• Panel-shaped building elements with surfaces based on wood powder or wood powder, which are made from a natural mixture of wood fibers are also becoming increasingly popular. Pigments, corundum, and melamine binders. These products are highly durable, possess high abrasion resistance, and are slip- and impact-resistant, as well as flame-retardant.
• a counter-layer is typically applied to the underside of the panel-shaped building elements. This serves to provide dimensional stability and act as a moisture barrier. Impact sound insulation can also be provided on the underside.
• a floating plank with a top layer or wear layer made of a single layer of hardwood and a base plate is made of DE 103 00 451 B3
• the core board consists of a high-density fiberboard and forms the core of the plank.
• the core board On the underside facing the counter-tension, the core board has slots that extend across the entire width of the plank, transverse to the longitudinal axis. Due to the slots, which By interrupting the grooves and tongues on the edges, the carrier plate is more flexible and tensions or distortions are counteracted.
• the longitudinal direction of the counter-sheet corresponds to the longitudinal direction of the panel-shaped component.
• the longitudinal direction refers to the longest dimension of the panel-shaped component and its core layer, wear layer, and counter-sheet.
• the at least one slot extends along the longitudinal axis.
• the slot can preferably run exactly along the central longitudinal axis.
• One or more slots can also be arranged parallel to the central longitudinal axis.
• slots can be provided, running longitudinally along the core layer and the panel-shaped structural element.
• a slot extending the entire length of the floor panel and thus the counter-tension is particularly advantageous in practice.
• the slot runs from one end of the structural element to the other end.
• the counter-sheet is preferably constructed in several layers.
• the counter-sheet consisting of one or more layers, has a thickness measured vertically from the underside of the counter-sheet to the middle layer.
• the slot provided according to the invention in the underside of the floor element has a depth. The depth is measured vertically from the underside of the slot toward the middle layer. The depth of the slot can be smaller than the thickness of the counter-sheet. Preferably, the depth is equal to the thickness of the counter-sheet. The slot thus extends to the underside of the middle layer.
• the slot depth prefferably be greater than the thickness of the counter-sheet. With this depth, the slot extends into the center layer and also intersects the center layer.
• a multi-layer counter-sheet is provided, in particular.
• the counter-sheet preferably has two counter-sheet layers, with a first counter-sheet layer arranged beneath the middle layer and a second counter-sheet layer arranged beneath the first counter-sheet layer.
• the slit has a depth that extends at least into the first counter-sheet layer. In particular, the slit completely separates the second counter-sheet layer and the first counter-sheet layer over their entire length.
• the first counteracting layer is formed from a material mixture comprising biomaterial particles, in particular wood fibers or wood particles, as well as binders, in particular melamine-based binders and additives.
• Additives can be color pigments or flow aids and wear-resistant particles or antiabrasive additives, in particular corundum.
• further mineral components can be included in the material mixture of the first counteracting layer.
• Mineral components are mineral components, particularly silicate minerals, such as feldspar, dolomite, basalt, diabase, or even clay minerals and/or magnesium. Several different fibrous and/or powdery mineral components can be part of the material mixture.
• the second lower counter-layer is preferably a veneer, in particular a wood veneer or a cork veneer.
• the second lower counter-layer consists of a poplar or birch veneer.
• a wood veneer counter-layer is not limited to a specific wood species. Counter-layer veneers based on softwoods such as spruce or fir, as well as rotary-cut oak veneers, can also be used.
• the slot is advantageously narrow compared to the width of a floor element.
• the slot can be machined using saw blades.
• the slot is particularly advantageously created using laser cutting.
• the cover layer is a veneer, in particular the cover layer is formed by a wood veneer, in particular a real wood veneer or a cork veneer.
• the first counter-layer of the counter-layer is preferably constructed in the same way as the intermediate layer of the wear layer. It is also a wood powder layer.
• a veneer for the second lower counter-layer is preferably made of birch or poplar.
• the middle layer, the wear layer and the counter layer are pressed together under the influence of temperature and pressure.
• a large-format starting panel is provided. This consists, in particular, of a high-density fiberboard (HDF).
• a starting panel with a typical size, for example, has dimensions of 2.60 m x 2.10 m. Of course, other large-format dimensions are also possible.
• a multi-layer body is then formed.
• a multi-layer body is formed.
• the bottom layer forms the second counterlayer, which consists in particular of a wood veneer.
• a powdered material mixture is applied to this, which essentially consists of wood fiber pigments and melamine binders along with the additives and/or additions mentioned above.
• the material mixture is intended to form the first counterlayer.
• the large-format base panel is positioned on top of the counterlayer.
• a material mixture forming the intermediate layer is then applied to this.
• the material mixture is in powder form and is applied to the top side of the base panel.
• the cover layer which consists in particular of wood veneers, is applied to the top side of the material mixture.
• the multi-layer body is then hot-pressed in a press between a lower press plate and an upper press plate.
• This process firmly bonds the wear layer and the counterlayer to the base panel.
• the base panel forms the middle layer.
• the resin in the material mixtures of the intermediate layer, as well as the first counterlayer is plasticized.
• the plasticized resin infiltrates the adjacent layers and joins the layered structure together.
• the layers of the panel-shaped building element are tightly bonded.
• the top layer and the intermediate layer of the wear layer, the middle layer, and the two counter-layers are tightly bonded.
• the pressed multilayer body is removed from the press and, after cooling, separated into individual components.
• the components are provided with at least one slit according to the invention on their underside.
• the slit cuts into the counter-sheet at least down to the first counter-sheet layer.
• the slit cuts through the counter-sheet longitudinally over its entire length and thickness.
• the first counter-layer 16 which is provided underneath the middle layer 11 and on top of the second counter-layer 17, is a wood powder layer.
• this layer consists of a material mixture whose main components are biomaterial particles in the form of wood fibers/wood powder and melamine-based binders. It also contains additives and optionally mineral components.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Floor Finish (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=90716965

Family Applications (1)

Country Status (1)

Citations (7)

• 2024
  • 2024-04-02 EP EP24167989.3A patent/EP4628675A1/fr active Pending

Patent Citations (8)

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