Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1994-01-25
1996-08-06
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156297, 156299, 1563082, 156555, 428212, 428218, 428285, 428287, 428402, 428409, 428 49, 428187, B32B 104
Patent
active
055431933
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention concerns a wood covering, particularly a wood floor covering with an upper layer formed by a layer of wood and a support.
BACKGROUND OF THE INVENTION
Wood coverings, particularly wood floor coverings are known as parquet, flooring, veneers and the like. Parquet floors are laid in such a way that individual parquet slabs are laid on a substrate, usually a floor, to form various patterns, and cemented to the same. There are also ready-made parquet floors in which the individual slabs are already assembled into patterns and sold as tiles. In this case, too, the individual slabs must be laid alongside one another and cemented to the subfloor. In addition to the tedious installation, parquet floors have the disadvantage that they must be sealed after being laid and later maintained with waxes. These materials are for the most part injurious to health. With flooring there are other problems. The individual wooden boards must be laid alongside one another on the substrate and attached to it. The laying of these floors is expensive, and they must also be varnished. With long use these floors begin to squeak. All wood floors present problems with dimensional stability, particularly relative to the effects of moisture, because the wood is normally sensitive to the effects of moisture and weathering. Moreover, the handling of numerous pieces of wood or wood tiles during their transport to the installation site is particularly inconvenient. These materials cannot be stored just anywhere; especially dry storage space is needed. Furthermore, parquet floors and wood flooring do not absorb sound and are thus also of limited use.
SUMMARY OF THE INVENTION
The goal of the present invention is to make available a wood covering, especially a wood floor covering, which does not exhibit the disadvantages cited above, is easy to lay, absorbs noise and is resilient to the step.
This goal is achieved by the wooden covering as claimed. A process for the manufacture of the wood covering is also provided.
DESCRIPTION OF THE DRAWINGS
The invention will be described in detail with reference to the following drawings in which:
FIG. 1 is a schematic drawing of a section through the inventive wood covering; and
FIG. 2 is a schematic view of a section through the inventive wood covering with a graded density structure.
DETAILED DESCRIPTION
The inventive floor covering exhibits an upper layer formed by a wood layer, able to be walked on and visible after its installation, which is attached to a support not visible once it is installed. The support is formed by thermoplastic synthetic foil material in pieces, compressed by the action of pressure and heat and bonded together at least partially. The upper layer and the support are bonded together permanently. Such a wood covering combines the advantages of a covering made of natural materials with the advantages of particularly easy handling. Because the support consists of at least partially consolidated pieces of plastic foil, and the bonding of the plastic foil exhibits good cohesion but is still so loose that bubbles and even small cavities are present in the compacted plastic material, it is particularly elastic. If a layer of wood is bonded to this carrier layer, the result is a wood covering exhibiting favorable elastic properties: it is resilient to the step and absorbs noise. Sound deadening is one of the important properties of the inventive wood floor covering. Moreover, the inventive wood covering is dimensionally stable. Due to the carrier layer consisting of plastic foil, the wood covering is waterproof and dimensionally stable even when subjected to the influences of moisture and weathering. Other materials which are not thermoplastic can also be mixed in with the thermoplastic synthetic foil layers. In particular, if the elasticity and the sound-damping properties of the wood covering are to be increased, it is also possible to add textile materials to the plastic material of the support, preferably in the form of pieces or filam
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patent: 4241133 (1980-12-01), Lund et al.
patent: 4865912 (1989-09-01), Mitsumata
patent: 5049431 (1991-09-01), Heckel et al.
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