KR20040102146A - Floorboards, flooring systems and methods for manufacturing and installation thereof - Google Patents

Abstract

The present invention relates to a floor board having a format corresponding to conventional parquet blocks for the construction of mechanically bonded suspended floors. The present invention further includes a method of manufacturing and installing a flooring material including the floor board, and a floor construction system.

Description

FLOORBOARDS, FLOORING SYSTEMS AND METHODS FOR MANUFACTURING AND INSTALLATION THEREOF}

Parquet flooring is originally constructed by constructing blocks of suitable size and shape in different patterns and bonding them to the sub-bottom. The bottom is then ground to obtain a flat bottom surface and finished with, for example, polish or oil. Conventional parquet blocks according to this technique have no fixing means at all because they are fixed by adhering to the sub-bottom. The main drawback of such flooring is that it is very difficult to install. The main advantage is that there is no fixing means, so it can be constructed with complicated and attractive patterns.

According to another known method, grooves are formed along all edges around the block. When these blocks are constructed by adhering to the sub-bottom, tongues are inserted into the grooves of the required position. Thus, by this, the tongues are joined in the grooves of two adjacent blocks, resulting in a bottom on which the blocks are fixed perpendicular to each other. The block is delivered with a smooth surface and a perfect glossy surface. Horizontal joints are obtained by nailing or fixing to the sub-bottom.

Conventional parquet blocks are rectangular and usually have a size of about 7 × 40 cm. The advantage of the flooring described above is that the plural blocks are in a herring barbed pattern in which the blocks are combined with their long sides on a short side, in a diamond pattern, or, for example, in parallel rows with short sides offset against one another. rows can be constructed in a pattern of attraction. The drawback of such flooring is that construction and manufacturing are complicated and expensive. This flooring cannot move relative to the sub-floor. When blocks shrink and expand due to changes in relative humidity (RH), undesirable joint gaps are created between the blocks.

To solve these problems, first, suspended wooden flooring has been developed. Such flooring consists, for example, of fairly large floorboards having a width of 20 cm and a length of 120 to 240 cm. As a rule, the surface consists of parquet blocks that are joined in parallel rows. This floor board is easy to install because a plurality of blocks can be combined at the same time. The main disadvantage is the inability to provide advanced patterns. Later, suspended laminate flooring was developed, which was basically a copy of the suspended wood flooring, except that it formed a decorative surface layer with printed and injected paper sheets laminated to the wood fiber core. These floorboards are less expensive than wood floors and have a greater wear and impact resistant surface. This type of suspended floorboards are only bonded at their mating edges. That is, these floorboards are only bonded at their bonding edges without adhesion on existing sub-floors that need not be fairly flat or planar. Any irregularities are removed, for example, by the underlying material in the form of a hardboard, cork or foam. Thus, these floorboards can move freely on the sub-floor. If the relative humidity changes, the entire bottom expands and contracts. For example, the advantage of suspended flooring having a surface of wood or laminate is that the bond between floorboards is tight and changes in size occur with the baseboard hidden. Such floorboards have a significantly larger surface than blocks, which allows for faster construction and reasonable manufacturing. Such suspension suspensions and wood floorings of the prior art have adhesive tongue-and-groove joints on long and short sides (ie, on one floor board and on adjacent floor boards with tongues). Joints with tongue grooves). In construction, the floorboards are brought together horizontally and a protruding tongue located along the joining edge of one floorboard is inserted into the tongue groove along the joining edge of the adjacent floorboard. The same method is used on the long side and the short side, and the floorboards are usually constructed in parallel rows with long side to long side and short side to short side.

In addition to these conventional suspended floorings joined by adhesive tongue-and-groove joints, in recent years, floorboards have been developed that do not require the use of adhesives but are mechanically fixed by a mechanical fastening system. These fastening systems include fastening means for fastening the floorboard horizontally and vertically. The mechanical fixation system can be formed as a piece with the floorboard by machining a portion of the board, for example by machining a portion of the core of the floorboard. Alternatively, the parts of the fastening system can be made of a separate material integrated with the floorboard. That is, it can be combined with floor boards when manufacturing parts of these fastening systems in a factory. These floorboards are joined, ie interconnected or fixed together, by angling, snapping-in and insertion of different combinations along the joining edge in a fixed position. The floorboard is continuously joined, ie, when the new floorboard is joined with the preceding floorboard, the leading floorboard is connected to the other floorboard on one long side and one short side.

The main advantage of suspended floors with mechanical fastening systems is that these floors can be built with greater accuracy and always easier and faster by means of different combinations of snap joints and / or inner bends. In contrast to adhesive flooring, the floorings of the present invention can be picked up again and reused elsewhere.

In the following description, the visible surface of the installed floor board is referred to as the "front side" while the opposite surface of the floor board facing the sub-floor is referred to as the "rear side". The sheet-shaped starting material used for manufacturing is called a "core." If such a core is coated with the surface layer closest to the front face and usually with a balancing layer closest to the back face, then in the next process the core is divided into "floor" if the semimanufacture is split into the multiple floor panels described above. Forming a semi-finished product called a "panel" or "bottom element". When the floor panels are machined along their edges to obtain the final shape with the coupling system, these floor panels are called "floor boards." "Surface layer" means all layers that are applied to the core closest to the front face and typically cover the entire front face of the floorboard. "Decorative surface layer" means a layer that is primarily intended to provide a decorative appearance to the flooring. "Abrasion layer" refers to a layer which is mainly applied to improve durability of the front side. "Laminate flooring" means a floor board with a surface layer of a thermoset laminate comprising one or more paper sheets impregnated with a thermoset resin. The wear layer of the laminate flooring usually consists of a transparent sheet with the addition of aluminum oxide impregnated with melamine resin.

The outer part of the floorboard at the edge of the floorboard between the front and rear surfaces is called a "joint edge". Usually, the engagement edge has several "engagement surfaces" which can be vertical, horizontal, bent, rounded, inclined, or the like. These bonding surfaces are present on different materials such as, for example, laminates, fiber-boards, wood, plastics, metals (particularly aluminum) or sealing materials. "Coupling" or "fixing system" means a cooperative connection means for connecting the floorboard vertically and / or horizontally. By "mechanical locking system" is meant that the bonding can be carried out without adhesive, horizontally parallel to the surface and vertically orthogonal to the surface. The mechanical fixation system may in many cases be joined by an adhesive. "Integrated" may be made of a separate piece of locking material in which the locking system is factory-connected to the floorboard or one piece with the floorboard. "Suspended flooring" means a flooring with a floorboard that is bonded only by each joining edge and not bonded to the sub-floor. Even when moved due to moisture, the bond remains tight. Moisture movement occurs in the outer area of the floor along a hidden wall below the baseboard. By "parquet block" is meant a rectangular bottom board having the shape of a conventional parquet block or strip. The most common format is about 40 × 7 cm. However, the parquet blocks may have a length of 15 to 80 cm and a width of 4 to 10 cm. "Floor unit" means a floor board that is combined and forms part of the flooring. The "length" and "width" of the floorboard generally refer to the width and length of the front face.

The size of the floor boards is to the extent of the material associated with the floor, the machining of the edges, the type of fixing system and the installation of the floor board.

It is generally an advantage that the floor boards of solid wood can be manufactured in a small size because defects such as cracks, knots, etc. can be cut and wood raw materials can be used more effectively.

However, this results in a better use of raw materials and lower manufacturing costs, which is an advantage in that most other types of floorboards, in particular laminite floorings, can be manufactured in large sizes. This is particularly advantageous when floorboards are made from large floor panels having artificial surfaces, such as printed surfaces, for example. In this case, of course, the advantage is that the saw cut can be reduced as much as possible.

Machining the bonding edges to form floor boards is an expensive operation for all types of floor materials. Floors made of large panels with few joints are known to have significant cost advantages over floors made of small panels. It is also known that the small size of the floor panels causes disadvantages in the floor, in particular the floor boards are rectangular and narrow in width, which in turn causes disadvantages in the floor which have significant engagement in the long side of the narrow panel.

Small sized floorboards with mechanical fastening systems are known to be more expensive to manufacture than similar panels with conventional tongue and groove systems. In addition, because a significant amount of material is required to form the fastening system, a mechanical fastening system capable of high quality fastening by angling is generally more complicated and expensive to machine than a more compact snap system. Any type of mechanical fixation system on the long side of a rectangular panel is generally more expensive to manufacture than any type of mechanical fixation system on the short side.

Usually, floors made of large panels can be installed faster than floors made of small floor panels

WO 01/66877 discloses a system for providing a patterned flooring consisting of laminate floorboards. Two embodiments are disclosed, in which the first embodiment (Figs. 4A and 4B uses an integrated fastening system, while the second embodiment (Figs. 5 and 6) has a separate joining profile. The floorboard is fixed only by vertical non-releasble snapping In the first embodiment, ie the embodiment of the integrated fastening system, the "male" floorboard and " It requires two different types of floorboards of female "floorboards. Installation by vertical snapping is complex and there is a significant risk that part or edge of the fastening system can be damaged while it is being fixed or released. WO 01/66877 also aims at floorboards having a size of 1200 mm to 200 mm.

WO 00/20705 discloses a system for fastening laminate floorboards together by separate bonding profiles, which are connected to the floorboards when these bonding profiles are installed. This coupling profile is only for holding the floorboard together by non-releasable snapping. A special purpose of WO 00/20705 is to reduce the amount of material waste in connection with the manufacture of floorboards, in particular with respect to the formation of mechanical fixing systems.

DE 197 18 319 C2 discloses solid wood parquet strips with fastening systems along the long and short sides for fixing the parquet strips with the other parquer strips in connection with construction. However, it is necessary to glue the parquet strips, and the purpose of mechanical fixation is to hold the floorboard together while the adhesive is cured. This mechanical fixation is provided only in the horizontal direction. Parquet strips are described as having a length of 250 mm to 1000 mm and a width of 45 mm to 80 mm.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more readily understand the knowledge of the previous problems of the present invention and the detailed description of the present invention, a more detailed description of the characteristics and prior art related to these specific sizes is described below with reference to FIGS. .

The main portion of all suspended laminate floors (FIG. 1A) consists of a rectangular bottom board 1 ′ having a length 4 a of about 120 cm and a width 5 a of about 20 cm. With modern printing techniques, laminate flooring can be produced which is a substantial picture of various natural materials such as wood or stone in appearance. Most common patterns are imitations of parquet flooring consisting of blocks 40. These blocks are usually about 7 cm wide and 20 to 40 cm long. Generally, the floorboard comprises three rows of parallel blocks with short sides offset relative to each other. This means that one or more blocks 41 of the short sides 5a and 5b of the floorboard will be shorter than the other two blocks. When the bottom boards are bonded (Fig. 1 (b)), this results in a non-natural appearance compared to the actual conventional parquet consisting of blocks of the same length, with the short sides of these floor boards being offset have. The same applies to suspended wood flooring.

Another problem that results in an unnatural appearance is related to manufacturing techniques. This is shown in FIG. The laminate flooring is made by a printed decorated paper sheet containing melamine resin, and the laminate flooring is laminated to the wood fiber core so that the floor element 2 is formed. The floor element 2 is then cut into dozens of floor panels 3, for example, which are machined along these edges to the floor board 1. Machining along these edges is carried out by the long sides 4a, 4b of the panel which are first machined in the machine 101 and then moved to another machine 105 for machining the short side. In connection with impregnating, the decorative paper expands in an uncontrolled manner. These swelling and manufacturing errors that occur with lamination, cutting, and machining along these edges cause the location of blocks on different floorboards to deviate from the desired location. If the two bottom boards are joined in a short side with respect to each other, the blocks 41a and 41b can be laterally offset and their lengths can be changed considerably (Fig. 1 (c)). All these situations cause significant manufacturing problems with the manufacture of laminate flooring having a three-block parquet pattern.

To address these problems, a number of expensive methods have been used to control the manufacturing process when manufacturing laminate flooring. Most conventional methods are controlled using advanced cameras that automatically measure and locate semi-manufacturing products during the manufacturing process. Different patterns are also formed by the special displacement of the block so that positional defects are hidden as much as possible. In wood flooring, blocks of displacement parallel to varying lengths are used to hide the cutting blocks on the short sides. All conventional methods give unsatisfactory results. Suspended flooring can create a larger market if natural parquet patterns are provided in connection with rational manufacturing and construction.

3 (a)-(d) show an example of a mechanical fixation system used for suspended flooring. All these systems generate waste (W). These wastes arise in connection with the machining of mechanical linkages and with regard to cutting (SB). In order to minimize these wastes (W), manufacturers try to produce floor boards as large as possible and with as few bonds as possible. come. Therefore, the floorboard must be wide and long. The narrow floorboard includes a plurality of joining holes per square meter of floor area. Such narrow laminate floorboards with widths and lengths corresponding to conventional parquet blocks are not known. The narrowest laminate floorboards are more than 15 cm wide and more than 100 cm long. FIG. 3 (e) shows the connection by internal bending and FIG. 3 (f) shows the connection by snap coupling of two adjacent sides 1, 1 'of the two bottom boards.

The present invention relates generally to the field of floorboards. The present invention is directed to floorboards that can be mechanically coupled in different patterns to resemble conventional parquet flooring made of blocks. The present invention also relates to a method for constructing and manufacturing floorboards. The present invention is specifically used for floating flooring consisting of, for example, floorboards having a surface of a laminate, coupled by a mechanical fixing system integrated with a floorboard of a type which is not entirely made up of a core of the floorboard. Suitable for However, the present invention is also applicable to other similar floorboards, for example suspended suspension by an optional mechanical coupling system and having a surface layer of wood or plastic.

The present invention is particularly suitable for use in suspension laminate flooring with mechanical bonding systems. This type of flooring usually consists of the surface layer, the core and the balancing layer of the laminate, and is formed as a rectangular floorboard to be bonded without adhesive along both the long and short sides mechanically, ie vertically and horizontally.

The following detailed description of the prior art, known problems of the system, and the objects and features of the present invention will therefore be aimed at all applications as non-limiting examples. However, the present invention focuses on the ability to be used for selective floorboards that are intended to be joined in a different pattern by mechanical bonding systems. Accordingly, the present invention provides a wood flooring comprising a surface made of a material such as plastic, cork, needle felt, or the like, and a plurality of layers of flooring having a printed surface and having a core of wood fibers or plastics and It can also be applied to uniform wood flooring.

1 (a) to (c) show a conventional floor board.

2 shows the manufacture of a laminate floor according to the prior art.

3 (a) to 3 (f) show examples of known fixation systems.

Figures 4 (a) to (e) show the flooring according to the invention.

5A to 5D show a coupling system according to an embodiment of the present invention.

6 (a) to 6 (d) show a construction method according to the present invention.

7 (a) to 7 (e) show a construction method according to the present invention.

8 (a) to 8 (e) illustrate a manufacturing method for manufacturing the floorboard according to the present invention.

9 (a) to 9 (f) show a floor construction system according to the present invention.

10 shows the construction of the floorboard according to the present invention.

11 (a) to 16 (e) show examples of construction methods and different patterns according to the present invention.

17A-17C illustrate an example of a flooring system with a floorboard according to the present invention in a construction pattern and format that is convenient to resemble a stone floor.

It is an object of the present invention to provide a floor board that can be mechanically coupled to a suspended flooring having a natural parquet pattern corresponding to a conventional parquet block in appearance. Another object of the present invention is to provide a suitable coupling system, installation method and installation pattern for these floorboards.

The present invention is based on a first understanding of modern manufacturing techniques and mechanical coupling systems in connection with a particular installation method with considerable accuracy and capable of quickly joining very small floorboards. The surprising result is that flooring consisting of small floorboards can be installed at about the same speed and with the same quality as conventional flooring consisting of significantly larger floorboards. It can also provide better results and provide faster installation than larger floorboards with mechanical coupling systems. For this reason, we have found that a compact floor board is easier to handle, and the friction surface along the long side of the joining portion is smaller, thereby making it easier to move and, consequently, in relation to snap coupling. The bent portion provides smaller and less resistance, allowing shorter side snap engagements with less force. Another advantage of the present invention is that the short side of the narrow floorboard can be manufactured with a fastening system, which fastens horizontally and does not require vertical snapping. Such a fastening system can be achieved, for example, by removing the tongue 22 on the short side of a rectangular floorboard with a fastening system similar to that of FIG. Nevertheless, the narrow short sides 5a, 5b of the two fixed floorboards are fixed long sides 4a, in the floor where the floorboards are installed in a horizontal row while being offset from the short sideboards. 4b) to maintain the desired vertical position (see (f) of FIG. 9 and (a) to (d) of FIG. 4). These floors are very easy to install because they only require long side bends for installation. The floorboard does not have any fastening system on the short side and can be manufactured by the bent fastening system on the long side. These short sides can be held together by friction of the long sides, or by gluing and / or nailing the bottom board to the sub-bottom. This narrow short side can be installed more quickly, with the same high quality as the short side. Conversely, if the short side becomes wider without a vertical fixation system, the risk of wrapping the short side is increased.

The present invention is based on a second quite surprising fact, that the manufacturing cost for a small floor board with a mechanical coupling system is not necessarily greater than for a large floor board. Small floorboards certainly include substantially more joints per square meter of floor compared to large floorboards, and the amount of waste as well as the machining costs are quite high when using conventional mechanical joining systems. However, these problems can be solved considerably if the floorboard is made and if the bonding system is formed in accordance with the present invention. Smaller floorboards mean that more wood can be used because it is easier to manufacture smaller blocks without knots or drawbacks than is present in the manufacture of larger boards. The format of the floorboard and its location within the floor may be used to create a decorative appearance of the floor in a cost-saving manner, for example, by cutting out floor elements, such as laminate flooring. For example, hundreds of floorboards can be produced by cutting the floor elements in a 2.1 × 2.6 m format with a printed vernier pattern. These small floorboards may have the shape of parquet blocks, and may be combined in different patterns while having differently arranged directions. It is then possible to form the parquet pattern of the block, which cannot be manufactured using today's technology. The problem of inflation of decorative paper is eliminated, and precise positioning and pattern alignment with regard to cutting are not necessary. This reduces the manufacturing cost. If the floorboard is narrow, any angular error between the long side and the short side will hardly be seen in the narrow floorboard as compared to the wideboard board.

The present invention is based on the following third understanding, i.e. it is possible and even advantageous to use small floorboards in suspended flooring, for example, having a format corresponding to conventional blocks. Such suspended floors will consist of substantially more joints than conventional floors with large boards. A large number of joints per unit area reduces the movement of the floor along the wall because each joint has some degree of flexibility. . Laminate flooring shifts, for example, about 1 mm per meter when the relative humidity changes over a year. If the floorboard has a width of, for example, 66 mm, it will include 15 joints per meter. Then, if the floor is prevented from moving due to the load, the contraction creates a maximum engagement gap between two adjacent upper edges of the two bottom boards of 0.06 mm. This bond gap is not seen. This coupling gap should be suitable for the floor type. At the laminate floor, 0.01 to 0.1 or rather large bond gaps may be sufficient. At the solid wood floor of oak, the bond gap may be on the order of 0.1 to 0.2 mm. This joining gap is advantageous if it can be combined with the inclined surface at the upper adjacent edge, which inclined to conceal the opening in the dry state. Thus, suspended flooring consisting of small floorboards, in particular, if these floorboards are manufactured with a fixing system that allows at least some horizontal movement towards and / or along the joining edges in a fixed position, It can be installed in a larger space. This floor will actually behave as a semi-floating floor that uses both movement within the fixed system and movement of the entire floor to prevent changes in humidity.

The present invention is based on the fourth understanding that when the RH changes, the narrow floorboard will not be significantly curved compared to the wide floorboard. This allows for a flatter floor and easier installation.

The present invention is based on the fifth understanding that flooring consisting of a large number of small floorboards gives a better possibility of providing high construction quality with a bonding gap that is not visible. Laminated wood flooring may be curved laterally due to non-uniform humidity ratios in the floorboard. Such "banana shapes" may result in a visible bond gap. If the length of the floorboard is reduced, for example from 1200 mm to 400 mm, the bond gap will be significantly reduced. Narrow floor boards are also easier to bend, and in fact, mechanical fastening systems automatically pull the floor boards together and remove the banana shape completely.

The present invention combines the wood blocks in a floating manner so that the moisture barrier of the plastic can be arranged between the wood floor and the concrete, thereby eliminating the moisture problems often encountered when bonding the wood blocks to the concrete floor. It is based on the sixth understanding that there is.

The present invention is also based on the seventh understanding that a fairly convenient way of producing a natural parquet pattern consisting of parallelly displaced wood blocks is made narrowly with a length and width corresponding to that of the parquet block. do.

The present invention is based on the eighth understanding that it is possible, for example, to provide a flooring system consisting of a compact floorboard having a different length and preferably the same width, which may preferably be even times the width. Here, the fastening system floorboard includes a mirror-inverted mechanical fastening system. This flooring system can be constructed in any improved pattern that a conventional parquet pattern can be provided. Such construction can be carried out significantly faster and with better accuracy. Such flooring systems can produce advanced patterns that also have surface layers that can only be used in a few variations in conventional use. For example, a surface layer of linoleum or needle felt may be attached to the HDF board. If these floor elements are manufactured with different color variations and are machined with the flooring system according to the invention, the combination of different floorboards of different colors can provide a significantly changed and advanced pattern that the original surface layer cannot provide. have.

Finally, the present invention is based on the understanding that the short side of a narrow floor board must be able to withstand the same load as the significantly shorter side of a conventional suspended floor material. For this reason, the point loads of the individual rows may be the same. Thus, for example, the short side of 85 mm of the floorboard according to the invention should be able to bear the same load as the short side of 200 mm of the conventional floorboard. The short side may suitably have strength to withstand a tensile load of 100 kg or more. Bonding systems constructed by short side down bending, displacement along the joining edge and long side down bending are particularly convenient for narrow boards. For this reason, the joining system joined by bending can be made stronger than the joining system joined by snap actuation. The floorboard according to the invention can be provided with a coupling system on the short and long sides which can be joined by downward bending.

Thus, in the above description, according to the present invention, a compact floorboard having a format corresponding to conventional parquet blocks, which contributes to providing a number of advantages to the suspended flooring in a surprising way as opposed to what has been considered so far possible. It can be seen that can provide.

The principles of the present invention as described above may be applied to flooring systems having a different format than conventional parquet. For example, stone reproductions may consist of formats 200 × 400 mm, 200 × 600 mm, and the like, having an inverted mirror coupling system that can be joined by bending and / or snap actuation. As mentioned above, these formats can be combined in an improved pattern of long side to short side, short side to short side, or short side to long side.

These objects are achieved in whole or in part by methods of construction and manufacturing, floorboards, flooring systems, blocks of floorboards, as described in the independent claims of the appended claims. The dependent claims and the detailed description of the claims define the embodiments of the invention.

Thus, according to a first aspect of the present invention, there is provided a rectangular floorboard for providing a patterned suspended floor covering, wherein the floorboard comprises at least a second floorboard along the opposite long side. And an integrated connection means for securing together with the bottom board and the upper edge portions of the second bottom board together form a horizontal plane together. The connecting means is adapted to fix the bottom board and the second bottom board together in a horizontal direction perpendicular to the vertical plane, the connecting means being connected to the floor board in a vertical direction perpendicular to the main plane of the floor board. And fix the second bottom board together. The length of the bottom board is 80 cm or less, and the length of the short edge of the bottom board 1 is 10 cm or less.

Flooring consisting of these compact floorboards will match the parquet blocks and will not show any "additional" joints or any pattern offset as seen by known parquet and laminated floorboards. Provides an improved imitation of classically patterned parquet flooring. Thus, compared with the known parquet floorboards, the problem of two adjacent floorboards having a pattern that does not match each other will be eliminated. Due to the integrated mechanical fixation system, the floorboards are easier to install than the floorboards for classic parquet flooring.

According to one embodiment, the connecting means is adapted to fix the bottom board together with the second bottom board by at least inner bending so that the upper mating edges contact each other. The ability of the connecting means to enable connection by bending action is advantageous because the coupling system to be joined by bending can be made easier and stronger to install than the coupling system to be joined by snap action.

According to another embodiment, the connecting means is adapted to release the floorboard and the second floorboard away from the sub-bottom by the upper bending. This release or unlocking of the floor board facilitates the construction, adjustment, replacement and reuse of the floor board.

According to another embodiment, the second floor board is substantially the same as the floor board. Therefore, only one type of floor board needs to be made to provide flooring.

According to another embodiment, the floorboard may have a surface layer comprising a thermosetting resin. By providing a floorboard with such a laminated surface, it is possible to increase wear resistance compared to strips of wood surfaces for classically patterned parquet floors.

According to another embodiment, a surface layer comprising wood or wood veneer may be provided. The surface layer of wood or wood veneer provides the look and feel of the actual wood parquet floor, while reducing the cost compared to conventional parquet floors. Thus, the bottomboard core can be any known core material such as wood slate, HDF, MDF, particle boards, plywood, and the like.

According to a further embodiment, the connecting means may consist of individual parts, which project from the joining edge and are mechanically coupled to the core of the floorboard. These individual parts can be used instead of removing material from the edge of the floorboard, thereby reducing the amount of material waste.

According to another embodiment of the floorboard, the surface of the floorboard may have a decoration and shape corresponding to a conventional parquet block having a length of 30 to 80 cm and a width of 5 to 10 cm.

According to another embodiment, the mating edges facing each other in pairs on the long edge of the floorboard may comprise projecting fixing elements integrated with the floorboard, wherein the opposite pair of second edge portions of the same pair A securing groove for receiving the securing element.

According to another embodiment, the length of the long edge of the bottom board is greater than 15 cm and the length of the short edge of the floor board is greater than 4 cm.

According to a second aspect of the present invention, a patterned suspended floor is provided, the pattern of which is provided by the respective shape of the floorboards that make up the patterned suspended floor. This flooring is characterized in that the patterned suspension flooring comprises a floorboard as described above.

According to a third aspect of the invention, a block of floorboard is provided for providing a suspended flooring. Such a block of floorboards is characterized in that the block comprises two or more floorboards as described above, wherein the two or more floorboards comprise at least one short edge of the first floorboard of the two or more floorboards. And at least one short edge of the second floorboard of the at least two floorboards.

Many variations of the invention are possible. Floorboards can be provided with all conventional mechanical coupling systems. Special floorboards can be made and made, for example nine floorboards according to the invention which are joined in three rows are displaced in parallel. Thus, the short side is not straight but consists of displaced rows. This floorboard is constructed by a combination of a long side downward bend, a short side lateral displacement and a snap joint. Other embodiments may be constructed by medial bending, lateral displacement and downward bending of the short sides. As a result, different combinations of snap engagement or insertion along the long or short side engagement edges, lateral displacement of other long or short sides and snap engagement can also be used.

According to a fourth aspect of the present invention, there is provided a method of manufacturing a rectangular bottom board having a long side and a short side, wherein the long side is an integrated connection system for fixing the bottom board together with a second floor board. There is provided a fixing system comprising a. A method of manufacturing such rectangular floorboards includes a set of tools for machining opposing edge portions of the first pair of flooring elements to provide a final shape of at least a portion of the short edges of the floorboards. Positioning the bottom elements linearly with respect to each other to provide two or more floor panels, separating the floor elements into the two or more floor panels, and at least a portion of the securing system. To provide, linearly positioning one of the two or more floor panels with a set of tools for machining the opposing edge portions of the second pair of floor panels. The above-mentioned manufacturing method is particularly suitable for producing a compact floor board as described above.

This method allows for the rational manufacture of small floorboards. Both the first and second steps described above can be carried out in the same production line. If the floorboard has the same fastening system on the long side and the short side, the same set of tools can be used for both the long side and the short side. Inverted mirror type A and B boards can be made by short side panels before the crop is rotated 180 degrees.

The fifth and sixth aspects of the present invention provide respective flooring systems consisting of floorboards having the same width but having different lengths, which may be multiples of this width. According to one embodiment, the floorboard has an inverted mirror coupling system which can be engaged by internal bending. These floorboards can be constructed in a number of different patterns with long sides combined with short sides. According to different embodiments, four different types of floorboards are provided that are different from each other (normal-mirror type) with respect to the length and / or orientation of the fixing system.

The seventh and eighth aspects of the present invention provide an alternative method of installing flooring using the floorboards described above. Using one of these methods, fast and effective construction of the floor can be carried out according to the invention. According to one alternative method, the bottom boards are inclinedly coupled by the fixing means in contact with each other, but they are joined in a position deviating from the final position when the floor boards are laid flat on the sub-floor. This floorboard is then displaced by a distance corresponding to the total length with respect to the other floorboards in the previous row before the final fixation takes place.

The manufacturing and construction techniques described above are particularly suitable for small floorboards, but of course may be advantageously used in floorboards having other larger formats.

The invention will now be described in more detail by way of example with reference to the accompanying schematic drawings, which illustrate embodiments of the invention and different aspects of the invention.

4 (a) to (c) show the bottom boards 1, 1 'having long sides 4a, 4b and short sides 5a, 5b provided with a mechanical fixing system. The vertical fixation system may comprise, for example, a tongue groove 23 and a tongue 22 (see FIG. 5A). The horizontal fastening means comprise a fastening element 8 which cooperates with the fastening groove 14. All floorboards are rectangular and have a width corresponding to that of conventional parquet blocks. Thus, the width is approximately one third of conventional stacked floorboards. In Figure 4 (a), the surface of the bottom board has the shape of a parquet block. In Fig. 4B, the surface has a decorative surface layer consisting of two parquet blocks, and in Fig. 4C the surface layer consists of three parquet blocks. The surface layer can be various fiber materials such as laminate, wood, plastic, linoleum, cork, needle felt, and the like. Such surfaces can be printed and / or varnished.

4 (d) shows that such floorboards, which may consist of one or more blocks, may be bonded to flooring that forms a brick-bond pattern in a natural manner. All blocks, except those in the outer portion of the floorboard, may have a full length. If the floorboard consists of one or more blocks ((b) and (c) of FIG. 4), a consistent pattern alignment can be created in the article. On the other hand, if the floorboard consists of one block according to Fig. 4A, such pattern alignment is not necessary. Floorboards are made by sawing floor elements, which have only a pattern consisting of veneers with varying shades, for example, similar to wood blocks made of different logs of the same kind of wood. In the flooring according to Fig. 4d, the blocks are displaced by a distance corresponding to half of these lengths. FIG. 4E shows an example of displacement by one third of the length.

5 (a) to (d) show that if a separate strip 6 is provided to the joining system mechanically fixed by the tongue 38 cooperating with the tongue groove 36, it may occur in connection with the cutting. It shows that waste can be substantially reduced. When the strip 6 is inserted toward the tongue groove 36 of the bottom board 1, the joining of the bottom board 1 in such a way that the upper lip 20 and the lower lip 21 bends upward and downward respectively. Can be fixed by snapping into the edges. The fastening element 37 cooperates with the fastening groove 39. The combination of the tongue groove 36 and the strip 6 can be implemented in several alternative ways. For example, the fixing groove 39 may be formed with the lower lip 21, and the fixing element 37 may be formed with the lower front portion of the strip 6 to cooperate with the fixing groove 39. The joining edge of the bottom board and the strip 6 can be carried out by snapping-in the strip 6 at the inner bend of the strip 6 or at any upwardly inclined position. This fastening system enables cost-effective manufacturing of narrow floor boards without a large amount of waste. FIG. 5A shows an example of laminate floorboards 1, 1 ′ having a surface layer 31 of laminate and a wood fiber core 30. The material of the wood fiber based strip 6 is fiberboard, such as solid wood, plywood, grainboard, MDF, HDF, compact laminates made of wood fibers impregnated with thermosetting resins, or similar materials. Can be. (A) and (b) of FIG. 5 show a fastening system that can be secured by internal bending and snap engagement, and FIG. 5 (c) and (d) are fastening that can be secured by snap coupling The system is shown. The protrusion P2 of the strip 6 extending beyond the upper part of the joining edge can be equal to or greater than the bottom thickness T in this embodiment. This facilitates fixing while bending around the upper portion of the joining edge. The fastening system, which allows for fastening and release by bending and consists of individual strips, is particularly advantageous on the long side of narrow floorboards.

6 (a) to (d) show a construction process. The floorboard is rectangular and can be mechanically coupled. The construction work begins, for example, with the first row R1 being coupled with the short side of the bottom board, which is inclined together, for example. The first row may in fact be an optional row within the floor and comprises a bottom board G1 called the first board. The second bottom board G2 in the second row R2 (FIG. 6A) is arranged at an angle A with respect to the first bottom board G1, and the first bottom board G1 is formed by the upper coupling edge. ) Is in contact with the mating edge of. 6 (b) shows that construction can be easy if a wedge-shaped tool (WT) is used as the support. The new floorboards G3 in the second row R2 are then fixed together with the short side to the short side of the second floorboard G2 in the second row. Such short side engagement may be effected by insertion along the short side engagement edge, either by snap engagement or medial bending against the short side engagement edge. During bending inwards, and preferably during the snapping engagement, this joining is carried out in such a way that the top joining edge of the new bottom board G3 is located away from the top joining edge of the first bottom board G1. While inserting along the short side engagement edge, this is not necessary because a new floorboard G3 can be inserted in contact with the first floorboard. The new floor board G3 may be first combined with the first floor board G1 by a snap action, and then, the new floor board G3 has a short side and a short side of the second floor board G2. It is laterally displaced along the long side to snap snap against. Thereafter, both the new floorboard G3 and the second floorboard G2 are laterally displaced along the long side parallel to the first floorboard G1 (FIG. 6C). The first lateral displacement may be substantially equal to the length 4a of the floorboard. Thereafter, additional new floorboards G3 ′ may be combined according to FIG. 6D. When substantially the entire row R2 is filled, all floorboards are tilted down and fixed. Substantially the whole installation can be carried out in this way.

7 (a) to 7 (e) show the same construction shown above. When the new floorboards G3, G3 ', and G3 "are displaced after bending, the second row R2 grows. This construction causes the second floorboard G2 to extend outside of the floor according to Fig. 7D. The main advantage is that the entire row R2 can be constructed without the floor-layer required to move along the bottom row, due to the weight and flexibility of the floorboard. Different floorboards inclined upward will take different angles These floorboards can easily slide in a semi-fixed state, which is shown in Fig. 5 (b) Fixing means 22, 23 and 8, 14 ) Is completely fixed, which reduces friction and at the same time prevents the floorboards 1, 1 ′ from slipping off by the fixing element 8 partially inserted into the fixing groove 14.

The construction of this method is particularly suitable for small floorboards, but can also be used for larger floorboards. This construction method allows for automatic construction. Another advantage is that this construction method allows for automatic construction by the construction device. Thus, according to the invention, which also includes a construction device for the floorboard, the floorboard can be constructed using a suitable device, for example, consisting of the following members and functioning. Such a suitable device has a reservoir comprising a number of new floorboards (G3, G3 ', etc.). These floorboards are for example stacked on top of each other. A suitable device as described above has a first insertion device which first inserts a new floorboard G3 inclined with respect to the first floorboard G1 in the first row R1. This insertion operation takes place along the short side of the second bottom board G2 and along the short side so that the new bottom board G3 is mechanically fixed. The suitable device described above further comprises a second inserting device for displacing the two bonded bottom boards which are laterally parallel to the first row R1. As the device moves out of the first row R1, all floorboards that have not yet reached a position parallel to the sub-floor will finally slope down towards the sub-floor.

8 shows a method of making a flooring with a mechanical coupling system. The floor element 2 is cut into a number of new floor elements 2 '. These bottom elements are then machined along a long side, for example in a machine with two chains. In this way, a semi-fabricated article of manufacture in the form of a short side panel 2 "is produced. This machining is therefore a reasonable machining of the long side of the floor element, and in fact, the short side 5a, 5b of the floorboard. After this first machining, the short side panel 2 "is cut into the bottom panel 3 and the edges of this bottom panel 3 are then long, for example in a machine with only one chain. It is machined along sides 4a and 4b. This method is based on the following facts, namely, in contrast to today's manufacturing, this manufacturing method involves a special cutting or splitting operation between the short side machining of the floor board and the long side machining and It is based on the fact that the long side is finally carried out by machining. Thus, this means that even if the floorboard is narrow, the short side can be manufactured in a reasonably large format. Today's machines are operated at lower capacities as the short side machining is carried out by cams on the chain, which means that the floorboard is machined by the distance indicated by "D" in FIG. The risk of angular error between the long side and the short side can be significantly less than with conventional manufacturing methods. Any lateral crookedness that may occur in connection with cutting to the bottom panel is eliminated by the bottom board aligning with a ruler (RL) before machining on the long side.

If the floorboard has a width of 85 mm and a length of 6 x 85 = 510 mm, long side machining requires six times longer machining than short side machining. An efficient manufacturing line can consist of a short side machine, a cutting unit, and a plurality of six long side machines, for example.

For example, by cutting the short side panel 2 "horizontally over 180 degrees before cutting, an inverted mirror fixing system can be provided. Alternatively, the bottom panel 3 can be rotated correspondingly after cutting. .

Long side and short side machining can be performed on one and the same machine and using the same set of tools. Many variations are possible. For example, the long side can be machined first. The floor element then has a width corresponding to one floor board and a length corresponding to several floor boards. After the first machining, the floor element is divided into several floor panels, after which the edges of these floor panels are machined along a short side.

9 (a) to 9 (e) show a flooring system consisting of two different floorboard formats with an inverted mirror mechanical fixation system that can be joined by inward bending on the long and short sides.

9 (a) shows a fastening system, in this embodiment, the fastening system consists of a single piece with the core of the floorboard and is configured such that the long side can be combined with the short side. . Vertical fixation is obtained by the tongue 22 and the groove 23. The horizontal fixation is effected by strips and fixing elements 8 on one of the bottom boards 1, which cooperate with the fixing grooves 12 on the bottom board 1 ′. It is advantageous for the fastening system to be substantially identical for both long and short sides. In this embodiment, the fastening system is the same. However, it should be pointed out that the present invention may be applied to floorboards having a fastening system and / or a different fastening system comprising different or separate materials than the core. This difference is between the different floorboards and / or the long side and the short side. The fastening system can be engaged by internal bending. In this embodiment, the fastening system withstands high tensile loads equivalent to about 100 kg in fastening systems with a degree along the 100 mm engagement edge. The fixing element 8 has a significant vertical size VT and a horizontal size HT. In this embodiment, the vertical size VT is 0.1 times the bottom thickness T, and the horizontal size HT is 0.3 times the bottom thickness T.

FIG. 9B shows the bottom board 41A having a width 1M and a length 6M that is six times the width. It may be advantageous if the accuracy of the size can be within an error of less than 0.1 mm and perhaps even less than 0.05 mm. According to many modern machines, an error of 0.02 mm can be achieved. 9 (c) shows the same floorboard 41B with the difference that the fixing system is inverted mirror type. The floorboards 41A and 41B have short sides with the same tongue side 22 and groove side 23. The long side of the bottom board 41A has a tongue side 22 on the side where the bottom board 42B has a groove side. Thus, the fixing system is inverted mirror type.

This floor construction system can be combined with the short side and the long side can be changed in the construction direction is possible in the construction of the advanced pattern. Modular systems with lengths equal to the exact multiple of the width increase the likelihood of change.

9 (d) and 9 (e) show corresponding floorboards having a length 9M, for example 9 times the width 1M in this embodiment. In addition, more advanced patterns can be provided if the flooring system consists of floorboards having different lengths.

It is evident that many variations are possible within the scope of the above principles. 9 (f) shows two short sides 5a, 5b of two adjacent edges of the floorboard. In this embodiment, there is only a horizontal fixation consisting of the strip 6, the fixing element 8 and the fixing groove 12. Such floorboards may have a fastening system on the long side as shown in FIG. 5 (a), and these floorboards may be installed in parallel rows. If the floorboard has an inverted mirror fixation system as described above, these floorboards can be installed in a herringbone pattern on the long side to the short side. Floorboards can be made in many different lengths and widths. The flooring system may consist of three or more floorboards having different sizes, and the floorboards may have the same width and random length. Some floorboards may have a width length of at least 2M that is different from the width length of 1M. The floorboard does not have to have parallel sides at all. For example, the short side may be tilted at an angle of 45 degrees to the long side. This manufacture can be reasonably carried out in a machine with one chain in which the cam of the chain is displaced, so that the floorboard will be inclined at an angle of 45 degrees, for example, through the milling tool. In addition, other optional angles can be made in this manner.

FIG. 10 shows an example where the long side to short side can be joined by internal bending, with the bottom board 42B already constructed. According to the present invention, the long side of the bottom board 41A is joined by an inner bend. This floor board is called the second floor board 41A and is in the initial phase of construction in a position inclined upward relative to the first floor board 42B already constructed in the first row. The short side of this second bottom board 41A is in contact with the long side of the first bottom board 42B that has already been constructed. It is advantageous if the support WT is used to hold the already constructed floorboards of the second row in a position inclined upwardly with this floorboard. The new floorboard 41 'is inclined by the long side with respect to the second floorboard 41A in the second row orthogonal to the already constructed first floorboard 42B. The new floorboard 41A, which is secured with the second floor board 41A, is then engaged in the fixed position until its upper short side edge is brought into contact with the long side edge of the first floor board 42B. Is displaced along. Subsequently, the bottom boards 41A and 41A 'in the entire second row are inclined downward toward the bottom-floor. If a suitable construction order is applied, advanced patterns can be constructed by this angle-angle method. The joining system gains considerable strength and large floors can be constructed without expansion joints between the bottom sections.

11 (a) shows how different length boards 41A, 42A can be coupled to the floor unit FU in the flooring system, with all rows being the same length and the entire floor unit FU Will have a fixed system in all respects.

11 (b) and (c) show how the length of the floor unit FU can be changed by combining floor boards of different lengths. The length of the floor unit FU may be changed to a staff that is half the length of the shortest floor board. The width can be changed by the number of rows according to FIG. 11C.

12 (a) shows that the floor unit (FU) can be adjusted to the size of the room so that the decorative frame of the cut floor board 41a is formed, the decorative frame of the cut board (41a) is the floor It can be used to size the final renovation of the room. In order to create a decorative pattern, floorboards with inverted mirror fixing systems 41A and 41B are used. O1-O4 represents a construction sequence that can be used to bond floorboards using the angle-angle method. After installing the bottom unit FU in parallel rows having different lengths of bottom boards, the inverted mirror bottom board 41B is engaged with the short side of the bottom unit O2. This floorboard has a length corresponding to the width of six floorboards in an alternative embodiment. The vertical rows O3 are then joined by the angle-angle method, so that the construction of the bottom is terminated by horizontal rows O4 which are also fixed in the same way.

Of course, these and other patterns may be combined by bending, combining movement of position movement and snapping, or by simple snapping, position movement and snapping. Insertion along the joining edge can also be used. A fastening system on the short side without tongues as in FIG. 9 (f) allows for installation by only bending of the long side.

FIG. 12B includes a modification that includes a plurality of inverted mirror bottom boards 41B in this embodiment. The construction can be carried out in the same manner as described above according to the construction sequence 01-09, for example.

One condition for the above-described construction of flooring to have high quality without a large bond gap that is visible is that the floorboard is manufactured with significant accuracy in size. It is advantageous for each joint to be provided with a certain degree of flexibility to balance manufacturing errors. In this embodiment, as shown in Figs. 9A and 9F, a gap P between the fixing groove 12 and the fixing surface of the fixing element 8, for example 0.05 mm, is advantageous. This gap P does not cause a visible gap. The inclined surface 133 of the upper bonding edge can also be used to conceal the bonding gap, and also to remove a portion of the hard surface layer, so that the upper bonding edge can be compressed with greater flexibility.

13A shows another pattern that can be constructed in order O1-O7 according to the angle-angle method. This pattern can be produced by only one type of floorboard that does not need to have an inverted mirror coupling system.

14A and 14B show a diamond pattern with offset diamonds that can be constructed by first joining the bottom boards to the two bottom units FU1 and FU2. These two bottom units are then joined to one another, for example by inner bending.

15A to 15C show alternative patterns that may be produced by the construction methods and flooring systems as described above.

16A and 16B show a herring thorn pattern that can be combined by bending the long side inward and snapping the short side to the long side. For example, the construction can be carried out in many different ways with only long side bending. In FIG. 16, the bottom is constructed in the construction direction ID by both the groove side 23 and the tongue side 22. It is also convenient if the construction is carried out only by the groove side 23 in the construction direction according to Fig. 16 (b).

16C to 16E show a herring thorn pattern having two and three blocks.

17A to 17C show how the corresponding pattern is generated, for example, by a floorboard having a format resembling a stone. The floorboard has, for example, a decorative groove DG on one long side and one short side made by removing the outer decorative layer such that the decorative layer or other parts of the surface layer under the core are visible.

FIG. 17C shows how the inverted mirror bottom board is coupled in an advanced shape in which the decorative groove is adapted to fit the bottom board after installation.

Note that the present invention can be applied to even smaller floorboards, blocks or strips as described above. Such a strip may, for example, have a width of 2 cm and a length of 10 cm. The invention may also be used to produce significantly narrow floor panels up to 1 cm, which may be used for decoration or to connect different floor units.

Claims (24)

As a rectangular floorboard (1) for providing a patterned suspended floor covering, The bottom board 1 is provided with a second bottom board 1 'and integrated connecting means for fixing the bottom board together along at least opposite long edges 4a and 4b, so that the bottom board 1 And the upper edge portions of the second bottom board 1 ′ together form a vertical plane VP together, The connecting means is configured to fix the bottom board 1 and the second bottom board 1 'together in a horizontal direction D2 orthogonal to the vertical plane VP, The connecting means is configured to fix the bottom board 1 and the second bottom board 1 'together in a vertical direction D1 orthogonal to the main plane of the bottom board 1. In the rectangular floorboard (1) for providing a decorative flooring, The length of the long edge (4a, 4b) of the bottom board 1 is 80 cm or less, characterized in that the length of the bottom board 1 is 10 cm or less, Rectangular floorboard to provide patterned suspended flooring. The method of claim 1, The connecting means is configured to fix the bottom board and the second bottom board together by bending at least inward, so that an upper coupling edge is in contact with each other. Rectangular floorboard to provide patterned suspended flooring. The method of claim 2, Said connecting means being adapted to release said floorboard and said second floorboard by bending upwards away from a sub-floor, Rectangular floorboard to provide patterned suspended flooring. The method according to any one of claims 1 to 3, The second bottom board 1 'is characterized in that it is substantially the same as the bottom board 1, Rectangular floorboard to provide patterned suspended flooring. The method according to any one of claims 1 to 4, The bottom board is characterized in that it comprises a surface layer 31 containing a thermosetting resin, Rectangular floorboard to provide patterned suspended flooring. The method according to any one of claims 1 to 4, The floorboard is characterized in that it comprises a surface layer 31 comprising wood or wood veneer, Rectangular floorboard to provide patterned suspended flooring. The method according to any one of claims 1 to 6, The connecting means is characterized in that it consists of a separate part protruding from the coupling edge and mechanically coupled to the core 30 of the bottom board 1, Rectangular floorboard to provide patterned suspended flooring. The method according to any one of claims 1 to 7, The joining edges facing each other in pairs on the long edges 4a, 4b of the floorboard include a protruding fixing element 8 integrated with the floorboard 1 ', the opposing edge portions of the same pair Characterized in that it comprises a fixing groove 14 for receiving the fixing element of the adjacent floorboard 1 ', Rectangular floorboard to provide patterned suspended flooring. The method according to any one of claims 1 to 8, Characterized in that the surface of the floorboard has a decoration and a shape corresponding to a conventional parquet block having a length exceeding 15 cm and a width exceeding 4 cm, Rectangular floorboard to provide patterned suspended flooring. Patterned Suspended Flooring, In the patterned suspension flooring, wherein the pattern of the flooring material is provided by the respective shape of the floorboards 1, 1 'constituting the patterned suspension flooring, Said patterned suspended flooring comprises a floorboard (1) according to any one of claims 1 to 9, Patterned Suspended Flooring. The method of claim 10, The pattern may include one or more short edges of the first bottom board of the two or more bottom boards such that the one or more short edges of the second bottom board of the two or more bottom boards are aligned. Characterized in that two or more provided to be arranged, Patterned Suspended Flooring. The method of claim 10, The pattern is characterized in that the short edges of two floorboards fixed together along each long edge are provided such that they are located mutually with respect to each other, Patterned Suspended Flooring. As a block of floorboards to provide suspended flooring, The block comprises at least two bottom boards according to any one of claims 1 to 9, wherein the at least two bottom boards (1, 1 ') are formed of the first floor board of the at least two floor boards. At least one short edge is arranged to align with at least one short edge of the second floor board of the second floor board of the at least two floor boards, Block of floorboards to provide suspended flooring. The method of claim 13, The block is square such that a first edge of the block coincides with a long edge of one of the at least two bottom boards, and a second edge orthogonal to the first edge is connected to the short edge of the at least two bottom boards. Characterized in accordance with, Block of floorboards to provide suspended flooring. There is provided a fastening system having long edges 4a and 4b and short edges 5a and 5b and including integral connecting means for securing the bottom board together with a second bottom board 1'to the long edge. In the method for producing a rectangular bottom board (1), A set of tools 110a for machining opposing edge portions of the first pair of flooring elements to provide a final shape of at least a portion of the short edges 5a, 5b of the floorboard 1; Positioning the bottom element 2 'linearly sized with respect to each other to provide 110b) and at least two floor panels 3; Separating the bottom element 2 'with the at least two bottom panels 3, and Linearly positioning one of the at least two floor panels with respect to each other a set of tools for machining the opposing edge portions of the second pair of floor panels to provide at least a portion of the securing system. Characterized in that it comprises a, Method of manufacturing rectangular floorboards. The method of claim 15, Machining the opposing edge portions of the first pair of floor elements comprises machining at least a portion of a second fastening system provided on the short edges 5a, 5b. Method of manufacturing rectangular floorboards. The method according to claim 15 or 16, The long edges 4a and 4b of the bottom board 1 are provided with a length of less than 80 cm, and the short edges 5a and 5b of the bottom board are provided with a length of less than 10 cm. Method of manufacturing rectangular floorboards. A floor construction system comprising rectangular bottom boards 41A and 41B of the first and second types, Each floorboard has integrated fixing means for securing the floorboard together with similar floorboards 1 'along opposing long edges 4a and 4b and along opposing short edges 5a and 5b. Is provided, The upper edge portion of the bottom board 1 and the similar bottom board 1 ′ together form a vertical plane VP in a coupled state, The connecting means is adapted to fix the bottom board 1 and the similar bottom board 1 'together in a horizontal direction D2 orthogonal to the vertical plane VP, In the floor construction system, the connecting means is adapted to fix the floorboard 1 and the similar floorboard 1 'together in a vertical direction D1 orthogonal to the main plane of the floorboard 1. , The length of the long edges 4a and 4b is an even multiple of the length of the short edges 5a and 5b, The bottom board of the first type is inversely mirrored with respect to the connecting means when compared to the bottom board of the second type, The first and second type floorboards are characterized in that they can be coupled to each other with a long side for a short side, a short side for a short side, and a long side for a short side, Flooring system. The method of claim 18, Characterized in that the first and second types of floorboards are engageable by bending inward, such that the upper engagement edges are in contact with each other, Flooring system. The method of claim 18 or 19, The bottom board is characterized in that it comprises a surface layer 31 containing a thermosetting resin, Flooring system. A floor construction system comprising rectangular bottom boards 41A and 41B of the first and second types and rectangular bottom boards 42A and 42B of the third and fourth types, In each of the floorboards, integrated fastening means for securing the floorboards together with similar floorboards 1 'along the opposing long edges 4a and 4b and along the opposing short edges 5a and 5b. Is provided, The upper edge portion of the bottom board 1 and the similar bottom board 1 ′ together form a vertical plane VP in a coupled state, The connecting means is adapted to fix the bottom board 1 and the similar bottom board 1 'together in a horizontal direction D2 orthogonal to the vertical plane VP, In the floor construction system, the connecting means is adapted to fix the floorboard 1 and the similar floorboard 1 'together in a vertical direction D1 orthogonal to the main plane of the floorboard 1. , The length of the long edges 4a and 4b is an even multiple of the length of the short edges 5a and 5b, The plurality of first and second type bottom boards 41A, 41B are smaller than the plurality of the third and fourth type bottom boards 42A, 42B, The first type bottom board 41A and the third type bottom board 42A are connected to the connecting means when compared with the second type bottom board 41B and the fourth type bottom board 42B. It is a reverse mirror image The bottom boards 41A, 41B, 42A, and 42B of the first, second, third, and fourth types are joined to each other by a long side for a short side, a short side for a short side, and a long side for a short side. Characterized in that possible Flooring system. A method of installing a flooring material comprising first and second types of rectangular bottom boards 41A and 41B, In each of the floorboards, integrated fastening means for securing the floorboards together with similar floorboards 1 'along the opposing long edges 4a and 4b and along the opposing short edges 5a and 5b. Is provided, The upper edge portion of the bottom board 1 and the similar bottom board 1 ′ together form a vertical plane VP in a coupled state, The connecting means is adapted to fix the bottom board 1 and the similar bottom board 1 'together in a horizontal direction D2 orthogonal to the vertical plane VP, The connecting means is adapted to fix together the bottom board 1 and the similar bottom board 1 'in a vertical direction D1 orthogonal to the main plane of the bottom board 1, The length of the long edges 4a and 4b is an even multiple of the length of the short edges 5a and 5b, The bottom board of the first type is inversely mirrored with respect to the connecting means when compared to the bottom board of the second type, In the first and the second type of floorboards are coupled to each other in a long side for the short side, a short side for the short side, and a long side for the short side, Engaging each of the two substantially identical short edges of the two bottom boards of the first type 41A with the long edges of the second type bottom board 41B by bending inwardly. doing, How to install flooring. The method of claim 22, Before the inwardly bending step, further comprising coupling the two bottom boards 41A of the first type to each other along each of the long edges 4a, 4b, How to install flooring. A method of installing a flooring comprising mechanically fixed rectangular floorboards 1, 1 'coupled in parallel rows by long sides 4a, 4b and short sides 5a, 5b. The floorboards are similar in both vertically and horizontally (D1 and D2 respectively) and have four coupling edges with a plurality of pairs of opposing connecting means 8, 9, 14, 22 for securing adjacent floorboards. According to In the method of installing flooring, the connecting means of the floorboard is configured such that two opposing engaging edges on the long sides 4a, 4b can be fixed by bending inwardly. Displacing the second bottom board G2 in the second row R2 to be inclined with respect to the first bottom board G1 of the first row R1, and the coupling edge of the first bottom board G1 and the first bottom board G1. Contacting the upper engagement edge of the second bottom board G2, Of the second bottom board G2 of the second row R2 such that the upper joining edge of the new bottom board G3 of the second row R2 is in contact with the joining edge of the first bottom board G1. Fixing the new bottom board G3 of the second row R2 to the short side 5b, Laterally displacing both the new bottom board G3 and the second bottom board G2 parallel to the long side 4a of the first bottom board G1, After the laterally displacing, bending the second and new floorboards G2 and G3 downward; Characterized in that the displacement in the lateral direction is longer than the length 4a of the bottom board, How to install flooring.