JPH0515867B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a removable insert having wood blocks with generally vertically oriented wood fibers placed at a distance from each other on a substantially flat underlayment or subfloor. Regarding the floor. The invention also relates to a method of making a wooden floor as described above from such wood blocks.

The inlaid wooden floor according to the invention is particularly suitable for use in subfloors of various materials, such as reinforced concrete or lightweight concrete subfloor slabs in ordinary rooms, gyms, indoor stadiums, museums, halls, multi-purpose rooms, etc. It is intended for covering flat areas.

If you install a block of grained wood, or wood with a diagonal grain (hereinafter referred to as diagonal grain), the fibers of the wood will be substantially vertical or diagonal.

In US Pat. No. 1,302,560 a wooden floor is known consisting of wood tiles that have been surface treated to increase the surface hardness so as not to form depressions. These tiles are placed side by side. The bottom of each tile is secured onto the subfloor and the tile sidewalls are bonded with a suitable adhesive.

Such conventionally known wooden floorings have the disadvantage that, because they are made rigid overall, cracks occur due to the inherent properties of wood.

The object of the invention is to eliminate the above-mentioned drawbacks and to
To provide a method for making a wooden floor with a very hard surface, a uniform appearance, sufficient elasticity to absorb shock, and excellent sound insulation.

In a block made by cutting wood fibers horizontally (hereinafter referred to as a wood block), the wood fibers expand in the horizontal direction when placed in a humid room and dry. It also contracts laterally. This is the main reason why end wood blocks have rarely been used as flooring materials to date.

The technical problem is to create a pre-assembled mosaic element in which a series of wood blocks are placed side by side with a small distance between each other, and the underside of each block is fixed onto an elastic layer. by and in that case, using elastic adhesives so that they can subside independently of each other when subjected to vertical localized pressure;
This is solved by rounding off the upper horizontal periphery of the block.

The wooden floor element of the invention is obtained by a novel combination of the following main features:

1. A panel consisting of opposed butt-end wood blocks with flat sides and fixed to a lower elastic layer.

2 The sides of the flat wood blocks are not glued together, but are made independently and slightly apart from each other so that they can move up and down independently of each other on the elastic layer when the wooden floor is subjected to local pressure. It is arranged as follows.

3. At least the upper periphery of each wood block is rounded.

According to the present invention, the wood blocks are arranged a little apart from each other so as to positively form a gap between the blocks, so that the end wood blocks made by cutting the wood fibers laterally can be It is possible to prevent the problem of expansion and contraction in wood blocks, that is, deformation and cracking of the floor due to expansion and contraction of wood blocks.

Further, according to the present invention, the wood blocks are adhesively fixed on the buffer layer made of an elastic material using an elastic adhesive so that they can move vertically relative to each other. Each wooden block can move up and down independently without peeling off paint or paint, thereby providing a flexible wooden floor.

Furthermore, since the upper horizontal periphery of each wooden block has rounded corners, it is possible to reduce the difference in level between the blocks when the floor is subjected to local loads.

Furthermore, since the buffer layer is covered with a non-stretch base and each wood block is bonded onto this base, local deformation of the wooden floor due to local loads can be made gentle.

According to one feature of the invention, the subfloor is optionally covered with a buffering, thermal and soundproofing layer of elastic material, and on top of this buffer layer the underside of each block of wood is covered with elastic adhesive. It is fixed with adhesive.

Preferably, the preassembled elements of the removable slab are made by assembling a predetermined number of wood blocks onto an elastic bottom cut to the required dimensions for installation on the subfloor.

In one embodiment of the invention, the cushioning layer is overlaid with a substantially non-stretchable substrate.

In this case, the upper and lower horizontal corners of each block are rounded.

The invention also relates to a wooden floor produced by the method described above. This mating floor essentially has a buffer layer,
In particular, it is characterized in that it consists of a block with smooth side walls placed on a layer of expanded polyethylene foam.

Other features and details of the invention will become apparent from the detailed description of a particular embodiment of a timber floor according to the invention, which is illustrated in the accompanying drawings.

The same reference symbols in the drawings indicate the same or similar elements.

As shown in FIG. 1, a wooden floor according to the invention is most commonly constructed by covering a block 1 of wood with a cushioning layer 2 of stretchable elastic material.
The blocks 1 have a parallelepiped shape and their side walls 3 are smooth, ie without lateral projections or grooves.

The block 1 is adhesively fixed to the buffer layer 2 at its lower surface 4. The side walls 3 of each block are neither glued nor latched. The buffer layer 2 is preferably made of foam.

As a result, a certain elasticity is provided, so that when the surface of the block 1 is pressed, the foam expands by an amount directly proportional to the pressing force and inversely proportional to the strength of the foam of the layer 2 and the dimensions of the underside 4 of the block 1. is compressed.

The permissible indentation depth of the block is controlled by the selection of foam density and block dimensions, which selection is made according to the expected compression forces for each product application.

The block is preferably lightly ground down to ensure that the angle does not create a cutting effect. Furthermore, the wood fibers are set vertically or diagonally to prevent splinters. This makes the wood flooring even safer in gyms or indoor arenas.

In order to avoid abrupt discontinuities in the surface of the wooden floor, a non-stretchable base 5 can be inserted between the buffer layer 2 and the blocks 1. By doing this, when block 1 receives a local load, the base 5 around the block is pushed down at the same time, and the blocks around the loaded block are pushed down together, and the area around the loaded location is pushed down. Make the slope of the form gentle. A continuous slope of blocks is thus created which is pushed into the wide area of the wooden floor.

As such, non-stretchable substrates make timber floors safer by preventing the formation of sharp discontinuities between adjacent blocks that could trip people.

Furthermore, the substrate as described above reinforces the foam and prevents it from breaking.

If the buffer layer 2 is an extruded synthetic foam, this foam is covered with a surface layer which is essentially integral with the foam structure and whose surface cells are prevented from being cut. in this case,
The surface layer, which has less elasticity than the underlying form, tends to be pulled down in the same way as the adjacent block. For this reason, the adhesive that adheres the block to the foam must be flexible.

When the buffer layer is a foamed synthetic foam, it has cut cells.

In this case, it is furthermore preferable to use an adhesive which has at least the same elasticity as the foam mat, so that the cells of the buffer layer are not damaged when the block is moved.

The non-stretchable substrate 5 must not contain large or small threads or fibers that can be cut so as to damage the foam mat.

The blocks are placed a little apart, with block 1
A translucent putty 6 is filled between the buffer layer 2 and the buffer layer 2,
The block is bonded to the buffer layer. This translucent putty can flow within the space as the block moves.
The putty can be based on synthetic resins or as described in Belgian Patent No. 894,573.

The exact elasticity obtained by installing the buffer layer 2 is different from the natural elasticity of the wood board.

The latter acts more like a spring, whereas the precise elasticity acts as a shock absorber.
Furthermore, the buffer layer according to the invention also provides excellent thermal and sound insulation.

According to one feature of the invention, the method of the invention allows for the assembly of blocks on a non-stretchable substrate 5 cut to size to create a preformed rug element 8. The base 5 may optionally be provided with an adhesive layer, onto which the wood block 1 is glued.

It is constructed by assembling a predetermined number of blocks in advance.
Individual blocks of removable rug elements 8 are each glued onto the cushioning layer 2. The elements may optionally each be provided with a separate elastic cushioning layer 2.

It goes without saying that the invention is not limited to the embodiments described here, but many variations are possible without departing from the spirit of the invention.

[Brief explanation of drawings]

- FIG. 1 is a side elevational view of a wooden floor according to the invention, -
Figure 2 is a diagram showing the elasticity of the wooden floor in Figure 1; - Figure 3 is a diagram similar to Figure 1 of the wooden floor in which the buffer layer is provided with a non-stretchable base; - Figure 4 is a diagram showing the elasticity of the wooden floor in Figure 1; Drawing of a Prefabricated Rug Element with Layers - Figure 5 is an exploded view illustrating the process of incorporating the rug element shown in Figure 4 into a timber floor;

Claims (1)

[Claims] 1 Wood blocks made by cutting wood fibers in the horizontal direction and arranged so that the fiber direction is almost vertical and slightly spaced apart from each other are placed on a nearly horizontal subfloor. A method of manufacturing wooden flooring by placing
The upper horizontal periphery of each wood block has rounded corners, and the subfloor is made of elastic material for cushioning, insulation,
A buffer layer having soundproofing properties is provided, the buffer layer is covered with a non-stretch base, and the wood blocks are placed on the base, and the lower surface of each block is bonded to the base using an elastic adhesive. A method characterized in that the wooden blocks are fixed and thus capable of vertical movement relative to each other. 2. A method according to claim 1, characterized in that the buffer layer is made of a synthetic material which is extruded in thin layers. 3. A method according to claim 1 or 2, characterized in that the buffer layer is made of a foamed synthetic material. 4 Wood blocks made by cutting wood fibers in the horizontal direction and arranged so that the fiber direction is almost vertical and slightly spaced apart from each other are made into a wooden floor that is placed on a nearly horizontal subfloor. The horizontal periphery of each wood block is rounded, and the subfloor is provided with a buffer layer made of an elastic material that has cushioning, thermal, and soundproof properties, and the buffer layer is covered with a non-stretch base. and the wood blocks are fixed to the substrate by gluing the lower surface of each block to the substrate using an elastic adhesive, so that the wood blocks can move vertically relative to each other. 1. A wooden floor according to claim 1, characterized in that at least an upper peripheral edge of said wooden block is rounded. 5. The wooden floor according to claim 4, wherein the lower peripheral edge of the wood block is scraped or chamfered. 6. A wooden floor according to claim 4 or 5, wherein the buffer layer is made of polyethylene foam.