Abstract

The invention relates to panel elements (1, 1') having two large surfaces (2) and surrounding end faces (3), produced from a first wood material (4) in the form of layered solid wood with a substantially homogeneous density of greater than 350 kg/m3 and produced from a second wood material (5) in the form of a layer with a porosity, wherein the average density of the layer of the second wood material (5) is less than 270 kg/m3. Layers of the first and second wood material (4, 5) are assembled in a stacked manner with adhesive connections between the consecutive layers. In addition, at least one layer of the second wood material (5) is arranged between two layers of the first wood material (4) as a cohesive layer, in the manner in which they were produced or provided with pores. The two large surfaces (2) are formed by layers of the first wood material (4).

IPC Classes  ?

• B32B 7/00 - Layered products characterised by the relation between layers Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties Layered products characterised by the interconnection of layers
• B32B 21/02 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board in the form of fibres, chips, or particles
• B32B 3/12 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a layer of regularly-arranged cells whether integral or formed individually or by conjunction of separate strips, e.g. honeycomb structure
• B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
• B27D 1/06 - Manufacture of central layersForm of central layers

Abstract

A lightweight construction element (1) comprises at least one lightweight panel (2) and a layer of insulating material (4) associated with the lightweight panel (2), wherein the at least one lightweight panel (2) comprises boards (6) having, on at least one of the main surfaces (8) thereof, a group of parallel running grooves (9) and being arranged in at least one layer (5) and being connected to each other via adhesive bonds. The layer of insulating material (4) comprises wood chips (19), which are removed from the starting boards during the manufacture of boards (6) with grooves (9) for the lightweight panel (2). These lightweight construction elements have good load properties and thermal insulation properties. The material used originates from one source and achieves a large overall volume after processing.

IPC Classes  ?

• E04C 2/12 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the likeBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of plasticsBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of foamed products of solid wood