MXPA98006259A - Table for entarimado of wood with retention and flexibility increases - Google Patents

Abstract

The present invention relates to a wooden floorboard having an upper surface with a decorative finish and a base surface opposite to the upper surface. The base surface has a multiplicity of closely spaced notches extending in the parquet board from the transverse base surface to the length of the parquet board substantially along the entire length of the parquet board to release tension and increase the flexibility in the wooden board to adhere more closely to the irregularities of a subsoil. The parquet board has wood fibers that extend substantially from longitudinal timber in one area of the parquet board between the notches and the upper surface of the parquet board that has been weakened to a sufficient degree to release tension on the upper surface of the parquet board. the board for parquet and to equalize the tension on the wood fibers adjacent to both the upper surface and the base surface of the table for parquet

Description

TABLE FOR ENTARIMADO OF WOOD WITH INCREMENTED RISK AND FLEXIBILITY TECHNICAL FIELD AND BACKGROUND OF THE INVENTION This invention relates to a parquet board with increased straightness and flexibility such as boards for laminated hardwood floorboard assembled to form a hardwood floor. The invention has particular application to products for finished wooden floors previously glued below. Wood parquet is typically installed either by nailing the boards of the wooden parquet boards adjacent to the subfloor to form an essentially seamless wood parquet surface, applying the boards for wood parquet to a subfloor that has been previously coated with , for example, a layer of the type of putty where the parquet boards are eded, or applying the wooden boards with adhesive previously applied on the base of the subfloor. The applicant has so far developed a product for the parquet, a hardwood board with a previous finish that can be adhered by means of an adhesive directly to a suitable subfloor, and which will give the same service of durability and longevity as other more expensive systems for wooden floorboards. This flooring product gives the same solid "impression" as a full-thickness solid hardwood floor of the type typically nailed in place, without any "spring" or "shoulder" that characterizes parquet systems glued underneath. the prior art those that have relatively thick foam adhesive pads to adhere the system to the subsoil. A substantial disadvantage observed in flooring products of the prior art is the tendency of floorboards to separate from the subfloor, particularly at points where there may be slight irregularities in the surface of the subfloor. A rigid, very straight parquet board will separate from the subfloor more easily than a flexible, thin parquet board. This can happen with any type of product for flooring. The problem can be aggravated when the planking board is manufactured has an arc along its length so that the surface of the base of the board creates a concavity when it is on a flat surface. This problem has been solved to a considerable extent by prior developments such as that described in the prior United States patent No. 5,283,102 of the applicant. The hardwood parquet board described in the '102 patent includes a multiplicity of closely spaced transverse notches at the base of the parquet board. These notches substantially increase the flexibility of the parquet boards without affecting in any way the appearance of the functionality of the product. However, when the reverse side of the parquet boards is entangled, arcing is created by releasing tension on one side of the parquet board although less stress on the opposite side substantially does not change it. This arcing affects the processing and packing downstream of the boards for flooring. In addition, the installer must take the arc into account when cutting and installing the floorboards. Although the problems are manageable, however, it is desirable to provide the installer with a floorboard that is essentially straight. Apart from the functional reasons for doing this, a perfectly straight parquet board is more aesthetically similar to solid full-thickness hardwood floorboards and thus more attractive to the customer. The product according to the application as illustrated in this application includes an adhesive system of the foam type placed on the back. The parquet board is faster, easier and less expensive to install than either an unfinished floor system or a parquet system laid over a previously applied mastic layer. The product has particular application on commercialized "do-it-yourself" floorboards to be used by homeowners who want a high-quality hardwood parquet flooring appearance without altering the result of a floor installed by a contractor. Currently there is a tendency to use a hardwood floorboard, and many homeowners remove the existing carpet in order to replace it with hardwood flooring. It is desirable the system for parquet that can be installed on a subsoil on which a carpet was previously installed without the need to raise doors or moldings to accommodate a greater thickness, since it simplifies the installation process of "do it yourself". The parquet board in accordance with this application addresses these needs and, in addition, is very flexible, strong and straight. Through the straightness of the boards for parquet, the quality and functionality of the product are increased. By eliminating the arc in the parquet board introduced by cutting notches in its back, any residual tendency in the center of the parquet board is removed out of time to separate from the subsoil. SUMMARY OF THE INVENTION Therefore, it is an object of the invention to provide a hardwood parquet board, which is both flexible and straight. It is another object of the invention to provide a board for hardwood flooring that can be joined to a subfloor and that tends not to be separated from the subfloor. It is another object of the invention to provide a parquet system that can be easily installed by "do-it-yourself" installers. It is another object of the invention to provide a parquet system that is as durable as conventional wood parquet systems, such as nailed parquet systems. It is another object of the invention to provide a system for parquet where the parquet boards do not have residual arcing which may cause the eventual separation of the board for the flooring of the subfloor. It is another object of the invention to provide a parquet system which, after installation, is indistinguishable in appearance and serviceability from conventional wood parquet systems, such as nailed parquet systems. It is another object of the invention to provide a flooring system having a sufficiently low profile so that it can be installed on subfloors where a carpet has previously been installed without lifting the doors or moldings. It is another object of the invention to provide a parquet system that can be installed on a wide variety of subfloors without extensive preparation. It is another object of the invention to provide a system for flooring which is aggressively attached to the subfloor. These and other objects of the present invention are achieved within the preferred embodiments described below by providing a wooden floorboard having a top surface with a decorative finish and a base surface opposite said top surface. The base surface has a multiplicity of closely spaced notches extending in the floorboard from the surface of the transverse base to the length of the floorboard along substantially the entire length of the floorboard to release the flooring. tension and increase the flexibility in the wooden board for a grip in a narrower way to the irregularities of a sub-floor. The parquet board has wood fibers that extend substantially longitudinally in an area of the parquet board between the notches and the top surface of the parquet board that has been weakened to a sufficient degree to release tension on the top surface of the parquet board and to equalize the tension on the wood fibers adjacent to both the upper surface and the base surface of the parquet board. In accordance with a preferred embodiment of the invention, the wooden parquet board includes fastening means extending along the length of said parquet board. over the first and second opposite lateral edges to hold the adjacent parquet boards assembled side by side to form an assembled wooden floor. The fastening means comprises a tongue formed on said first side edge of the floor board and a groove formed in the second side edge of the floor board. Each of the tabs and grooves couples with the complementary elements on the adjacent floorboards. In accordance with another preferred embodiment of the invention, the wooden parquet board includes parquet boards having opposite end portions, each end portion having a single flat area encompassing the entire surface area of the end portion perpendicular to the plane of the parquet board that engages overlapping similar flat areas over adjacent parquet boards.

According to yet another preferred embodiment of the invention, the boards for wooden flooring include at least one strip of foam tape coated with pressure sensitive adhesive applied to the base surface to adhere said floorboard to the subfloor, and it includes a protective cover that covers said adhesive until the removal just before the installation to the subsoil. Still in accordance with another preferred embodiment of the invention, the wooden parquet board includes an upper surface having a decorative finish and a base surface opposite said upper surface. The base surface has a multiplicity of closely spaced notches extending in the floorboard from the transverse base surface along the floorboard board substantially along the entire length of the floorboard to release tension. increase flexibility in the wood board to adhere more closely to the irregularities of a subsoil. The parquet board is characterized by having wood fibers extending substantially longitudinally in an area of the parquet board between the notches and the upper surface of the parquet board which has been weakened to a sufficient degree to release tension. on the upper surface of the parquet board and to equalize the tension on the wood fibers adjacent to both the upper surface and the base surface of the parquet board. The fastening means extends along the length of said parquet board over the first and second opposing side edges to hold the adjacent parquet boards assembled side by side to form an assembled wood floor, such as a tongue formed on said first side edge of the parquet board and a slot formed in the second side edge of the parquet board, each of which engages with the complementary elements on the adjacent parquet boards. The parquet boards have opposite end portions, said end portions each having a single flat area encompassing the entire surface area of the end portion perpendicular to the plane of the floorboard for overlapping engagement with similar flat areas on the floorboards. adjacent parquet. At least one strip of foam tape coated with pressure sensitive adhesive is applied to the base surface to adhere said parquet board to the subfloor, and includes a protective cover covering said adhesive until removal just prior to installation at subsoil. Still in accordance with another preferred embodiment of the invention, the foam tape includes adhesive on said tape to adhere the tape to the base surface of the parquet board. Preferably, the foam tape comprises a closed cell polyethylene foam. In accordance with still another preferred embodiment of the invention, the adhesive comprises an acrylate pressure sensitive adhesive. Still in accordance with another preferred embodiment of the invention, the parquet component is selected from the group consisting of a solid wood board, a laminated wood board, a solid parquet block or a laminated parquet block. According to still another preferred embodiment of the invention, the adhesive layer is placed on the base surface of the parquet board in spaced relation at both side edges to provide a contact surface of the coupling surface to adhere the component of floor to the subsoil while allowing the interconnection of the parquet board with a similar, adjacent parquet board without contact of the adhesive with the subfloor. Still in accordance with another preferred embodiment of the invention, the parquet board includes a top layer, an intermediate layer and a laminated base layer assembled in register with one another.

According to yet another preferred embodiment of the invention, the notches in the parquet board are formed by notching the base layer of the parquet board. According to yet another preferred embodiment of the invention, the notches in the parquet board are formed by adhering a plurality of separate pieces of wood in an arrangement to the intermediate layer. According to still another preferred embodiment of the invention, the parquet board includes two separate and parallel foam strip lengths extending along the length of the parquet board. According to still another preferred embodiment of the invention, the adhesive layer is placed on the base surface of the parquet board in spaced apart relation at both side edges to provide a contact surface of the mating surface to adhere the parquet component. to the subfloor while allowing the interconnection of the parquet board with an adjacent parquet board, similar to the parquet board without contact of the adhesive with the subfloor. According to yet another preferred embodiment of the invention, the parquet board includes an upper surface having a decorative finish, a base surface opposite said top surface, said parquet board having wood fibers extending substantially longitudinally in an area of the parquet board between the base surface and the top surface of the parquet board that has been weakened to a sufficient degree to provide increased flexibility to said parquet board and to equalize stress on adjacent wood fibers both to the upper surface and to the base surface of the parquet board, therefore the parquet board remains flat without bowing and has an increased tendency to remain flat when it joins a subfloor that has irregularities in the surface. Brief Description of the Drawings. Some of the objects of the invention have been established below. Other objects and advantages of the invention will appear as the methods of the invention when taken together with the following drawings, wherein: Figure 1 is a perspective view of the finished side of a floorboard in accordance with a preferred embodiment of the present invention; Figure 2 is a side elevation of the parquet board of Figure 1, illustrating the arc formed in the table when the notches are marked on the base surface.

Figure 3 is a perspective view of the unfinished side of the parquet board shown in the Figure 1; Figure 4 is a vertical cross-sectional view amplified laterally side by side of the parquet board; Figure 5 is a fragmentary lateral elevation of the parquet board; Figure 6 is a vertical cross-sectional view, amplified, fragmentary side-by-side longitudinally of the floorboard; Figure 7 is a simplified schematic side elevation of the apparatus for increasing the flexibility and straightness of the floorboards according to one embodiment of the invention; Figure 8 is a view similar to Figure 7 showing the floorboards that are being processed; Y Figure 9 is a perspective view of a floor created from the floorboards assembled according to one embodiment of the invention. DESCRIPTION OF THE PREFERRED EMBODIMENT AND THE BEST MODE With reference now specifically to the drawings, a parquet board in accordance with the present invention is illustrated in Figure 1 and shown generally with the reference number 10.

The parquet board 10 can be of any suitable length, width and thickness, but normally the dimensions and constructions of the parquet boards are 1/4, 3/8 and 15/16 inch thick solid or laminated oak between 2 and 1/4 and 8 inches wide and up to 5 feet in length. A laminated construction of three layers is shown in the Figures. See particularly Figure 3. The parquet board 10 has an upper surface 11, which can be finished or unfinished, an opposing base surface 12, opposite side edges 13 and 14 and end edges 15 and 16. The parquet board 10 includes a groove 18 extending along the side edge 13 and a coupling tongue 19 extending along the opposite side edge 14. The grooves 18 and the tabs 19 of the adjacent floorboards are engaged to form a floor substantially without seams. As shown in Figures 2 and 4, the base surface 12 is provided with transverse notches 20. The notches 20 extend side by side in closely spaced relationship transverse to the length of the floorboard 10 along substantially the entire length of the floorboard 10, substantially as described in U.S. Patent No. 5,283,102 of the applicant. According to a preferred embodiment of the invention, the notches 20 are 1/8 inch wide, 1/8 inch deep, and are one inch apart at the center. Other widths, depths and separations are also possible. The notches 20 substantially increase the flexibility of the parquet board 10 and thus improve the capacity of the parquet board 10 to remain completely attached to the subfloor along its entire length. However, the relief produced from the tension in the base surface 12 may cause the arched table 10 to be arched, as shown in Figure 2. An upward deflection of the parquet board 10 at a point equidistant from its surface. Opposite ends from a flat support surface may be approximately 3/4 of an inch. As shown in Figure 3, the parquet board 10 in accordance with a preferred embodiment of the invention is a laminated structure having three layers of wood, 10A, 10B, 10C joined together under heat and pressure. According to one embodiment of the invention, the upper layer 10A is a layer of thin sheet of solid wood, high quality, without stain, such as oak, while the middle and base layers 10b and 10C are either stained boards of the same type of wood, or a less expensive type of wood. Within the modalities is that of the stained wood used on the base layer 10C.

The modality of the parquet board 10 described in this application includes a pressure sensitive adhesive system, as described below. However, the apparatus and the method according to the application have application for any floorboard that is arched, for any reason. Two strips of tape 22 and 23 of a pressure sensitive foam adhesive system adhere to the base surface 12 of the parquet board 10, as shown in Figure 4. The strips of adhesive tape 22 and 23 are applied. in lengths extending along one end of the floorboard 10 to the other. See also generally Figures 3, 4 and 5. As best shown in Figure 6, each of the tape strips 22 and 23 of the adhesive system (exemplified by the strip of tape 22) is a laminated assembly that includes a first acrylate adhesive layer 24 by which the assembly is attached to the parquet board 10. One side of a layer of polyethylene foam tape 25 provides a substrate for supporting and carrying the adhesive layer 24, and simultaneously provides a degree of adequate cushioning to the boards for parquet 10 by means of the installation to form a floor. The other side of the foam tape layer 25 supports a second layer of acrylate adhesive 26 which remains covered by a release paper 27 and protects the adhesive layer 26 until the floor board 10 is ready to be applied to the subfloor , which at any time is removed as described below. The preferred pressure sensitive system that is generally described below is a double coated polyethylene foam tape, Product Description Nos. 4492, manufactured by Minnesota Mining and Manufacturing Company. The adhesive applied to polyethylene foam is an acrylate adhesive that has an aggressive adhesive capacity. The preferred thickness of the adhesive system is 1/32 of an inch. According to a preferred method, the adhesive tape strips 22 and 23 are supplied by the manufacturer in a continuous, long strip on a reel, which includes paper or releasable film (not shown) that protects the adhesive which will bond with the adhesive. base surface 12 until the application of the belt strips 22 and 23 to the base surface 12 of the parquet board 10. The base surface 12 is sanded with a belt sander carrying 150 rough sands, and then heated to approximately 51.6-57.2 * C. The heating softens the adhesive that makes contact with the wood and creates a more intimate union.

The release paper is removed and the adhesive layer is exposed as the strips of the tape are pressed onto the base surface of the parquet board 10. The strips are preferably separated from both lateral sides 13 and 14 of the parquet board. 10, leaving the wood uncovered on both lateral edges and adjacent portions of the base surface 12 of the parquet board 10. Preferably, each of the tape strips 22 and 23 are 3/4 inch wide and they are symmetrically arranged in relation to the center line of the parquet board 10. This provides a centered length of bare wood extending along the length of the parquet board 10 between the tape strips 22 and 23, and two lengths of bare wood, each 1/8 inch wide, which extend along the opposite side edges 13 and 14. Other configurations are possible, and are optimized depending on or the thickness, width and flexibility of the boards for parquet, and the anticipated characteristics of the subsoil. In some applications a single strip of wider adhesive tape or three or more parallel tapes may be suitable. The opposite ends 15 and 16 of the wooden parquet board 10 are formed without the tongue and groove fastening means.however, they are cut to provide an overlap connection between the end 15 and the end 16 of the adjacent parquet boards 10 of laminated wood. The overlapping ends 15 and 16 of the laminated wooden parquet board 20 allow an absolutely recessed connection which will not be opened by traction. A chamfer 30 is formed at both ends 15 and 16 in the base layer 10C of the wooden parquet board 20. Each of the chamfers 30 forms a cutting area adjacent to the lower edge of the ends 15 and 16. The chamfers 30 allow the wooden parquet board 10 to flex freely according to the surface of the sub-floor, without effecting or otherwise interfering with the placement of the adjacent laminated wooden floor boards. For this reason, the laminated wooden boards 10 adjacent end to end can be made to fit perfectly edge-to-edge, without using tabs or slots or other fastening means. The ability to remove the tongue and groove fastening means at the ends 15 and 16 of the parquet board 10 simplifies installation, since each board 10 can be placed on the subfloor just in alignment with the end 15 of the parquet board 10 level against the end 16 of an adjacent parquet board 10. In this way, the parquet board 10 needs only to be displaced laterally to hold the tongue 19 of a parquet board 10 in the slot 18 of the laterally adjacent parquet board 10. The provision of the overlap end for coupling between the adjacent laminated wood parquet boards 20 end to end provide a more consistent and much more uniform floor surface, because the side edge of the tongue and groove connections 19 and 18 hold the ends 15, as well as the sides, level. In addition, the parquet board 10 as described in the above embodiment can be cut lengthwise and put into pieces anywhere on the floor, since a tongue and a slot or other positive fastening means are no longer needed to hold the floorboards. ends 15 and 16 assembled with the adjacent laminated wood 10 boards. Note in particular that the end edges 15 and 16 on the chamfer 30 are flat and perpendicular to the plane of the base and top surfaces 11 and 12, so that no gaps remain when the end-to-end floorboards are coupled. As shown in Figure 9, the installation of the parquet board 10 as described more specifically below creates a hardwood floor with a finish indistinguishable from other floors that are more expensive and difficult to install.

The strength of the adhesive and the bond between the adhesive, the wood and the subfloor have been tested by preparing a test sample by applying a parquet board to a section of conventional subsoil material to create a test assembly. Ten pounds of weight were placed on the parquet board to apply vertical traction. The test assembly withstood said traction for several months without delamination of any of the floorboards 10 of the adhesive or subfloor. The parquet board 10 can be applied to a number of different subsurface constructions, such as plywood, oriented interlaced boards or 40 pound particle board. The floor can also be installed on existing floors. If the existing floor is a hardwood floor, all wax must be removed, since the adhesive is not designed to stick to waxed surfaces - therefore, release paper coated with wax is used. Floors finished with polyurethane do not need to be scraped while the finish is well bonded. The floor of the type of vinyl can be used while the used layer is intact and has a resistant layer of PVC or Polyurethane. The floor can be installed on a concrete subfloor if it is clean and free of dust. This condition can be achieved by sweeping or vacuuming the floor carefully.

The dust and similar materials attached prevent the adhesive from adhering to the subfloor, so it is very important to clean it to remove it and similar materials. Apparatus Description and Method Referring now to Figure 7, an apparatus 40 for straightening and increasing the flexibility of parquet boards such as those described above is shown. The apparatus 40 includes an upper conveyor belt 41 and a lower conveyor belt 42. The upper conveyor belt 41 rotates around two horizontally spaced rollers 43 and 44. The lower conveyor belt 42 rotates around two horizontally separated rollers 46 and 47 positioned below the upper conveyor belt 41 with the upper path of the conveyor belt 42 and the lower path of the upper conveyor belt 41 engaging each other so that each one of the bands 41 and 42 rotate. The lower conveyor belt 42 is longer than the upper conveyor belt 41 and, as shown in Figure 7, extends outwardly in the internal feed direction to form a support for the floorboards 10 as they are fed to the apparatus 40. Both conveyor belts 41 and 42 are made of rubber with gripping fingers molded on the surfaces. All rollers have polished steel surfaces.

Both bands 41 and 42 are driven by an electric motor 49. The motor 44 drives the roller 47 of the lower conveyor belt 42 as shown in Figure 7. An adjustable tension roller 50 is used to control the tension on the conveyor belt lower 42 and drives the roller 44 of the conveyor belt 41 by means of a suitable driven band 52, such as a regulation band. Referring still to Figure 7, a pair of deflection rollers 53, 54 are positioned in a separated position between the upper and lower runs of the upper conveyor belt 41. An adjustable deflection roller 56 is placed in a separate position between the upper runs. and lower of the lower conveyor belt 42 between the deflection rollers 53, 54. The deflection roller 56 is urged upward and deflects the upper and lower conveyor belts 41 and 42 upwardly between the deflection rollers 53 and 54. The little length of the conveyor belts 41 and 42 between the deflection rollers 53, 54, thus form a deflection zone through which the floorboards must pass 10. Preferably, a second pair of deflection rollers 57 and 58 they are placed in a separate position between the upper and lower runs of the lower conveyor belt 42. An adjustable deflection roller 59 is placed in a separated position between the upper and lower paths of the upper conveyor belt 41 between the deflection rollers 57, 58. The deflection roller 59 is driven downward and deflects the upper and lower conveyor belts 41 and 42 down between the deflection rollers 57 and 58. The short length of the conveyor belts 41 and 42 between the deflection rollers 57 , 58 thus form a second deviation zone through which the boards for flooring 10 must also pass. The apparatus 40 is placed downstream of the moulder and the already enmeshed floorboards are fed one by one into the upper path of the lower conveyor belt, as shown in Figure 8. The conveyors feed the floorboards from 10 to 240 feet / min- at the same speed as the moulder. The elaborated floorboards 10 are fed into the appliance 40 with either side facing upwards. Providing two deflection zones formed by the deflection rollers 53, 54, 56, and 57, 58, 59, respectively curving the uniform and symmetrical floorboards 40. As noted above, floorboards 10 can typically have an arched or 3/4 inch deviation. It has been determined that this degree of deviation can be adequately corrected by an apparatus 40 wherein the deflection rollers 53 and 54 are 6 inches in diameter and 8 inches apart from center to center, and the diverter roller 56 is 2 in diameter. inches in diameter and deflects the conveyor belts 41 and 42 one inch up. Deviating rollers 57 and 58 are also 8 inches apart from center to center and 2 inches in diameter. The deflection roller 59 is 8 inches in diameter and deflects the conveyor belts 41 and 41 one inch down. As shown in Figure 8, the deviation between the rollers 57 and 58 is more gradual than the deflection between the rollers 53 and 54. As the parquet board 10 passes through the apparatus 40 the wood fibers between the notches 20 weaken It has been shown that the tested floorboards 10 processed through the apparatus 40 are completely flat and have greater flexibility. As a result, parquet boards 10 have no tendency to rise from the subfloor after installation, as is the case with parquet boards 10 not processed through apparatus 40. The principles by which apparatus 40 operates can be applied to different sizes, types, thicknesses and materials of boards for parquet. The empirical test is necessary to determine the correct speed of the machine, the spacing of the roller, the diameter of the roller and other variants to weaken the fibers in the parquet board to the extent necessary to release and equalize the tension as long as they are not broken. many fibers so that the parquet board is structurally damaged. Method of Installation The parquet boards 10 processed as described above through the apparatus 40 are installed as follows: A chalk line, a square structure, and a miter saw are usually the only tools needed for installation. In most cases, a bearing is not necessary. The floor is properly adhered by the applied pressure as the workers walk back and forth on the floor as it is applied. Usually a cut tolerance of 5% is sufficient. The subfloor should be checked for damage, leveling and cleaning and corrected if necessary. First, the installer finds the starting point depending on the pattern and the chalk line in a conventional manner. A "dry" adjustment of the parquet board 10 is made to determine the necessary cuts. The ends are measured before removing the release paper 27, the ends are adjusted dry, then cut, then the release paper 27 is removed to expose the adhesive and the parquet board 10 is carefully pressed onto the subfloor. The parquet board 10 is applied to the subfloor along a chalk line, with the slot 18 on the chalk line, and the tongue 19 in the opposite direction to the installer. Other cuts are made around heating registers, pipes and the like as the parquet boards 10 are installed, and before the separation of the release paper 27, as described above. As noted above, the marginal areas of the base surface of the floorboards 10 are not covered with the adhesive tape strips 22 and 23. The release paper 27 is removed and the tongue 19 of the floorboard is removed. 10 is inserted into the slot 18 of the parquet board 10 adjacent to an angle. The absence of adhesive on the marginal area of the base surface 12 adjacent to the tongue 19 allows the placement of the parquet board 10 very closely adjacent to the parquet board 10 which remains just without contacting the adhesive exposed just to the subfloor . The tongue 19 can therefore be inserted completely into the adjacent slot 18 and the parquet board 10 is pressed firmly onto the subfloor in a single movement. The adhesive layer 26 is sufficiently firm so that the parquet board must be substantially in its final position before being pressed to the subfloor. If necessary, the parquet board 10 can be tapered, taking care not to damage the edges of the upper surface, in order to place the next adjacent parquet board 10 seamlessly. The thickness of the strip of tape 22 provides a minimum amount of lateral movement. The heating register covers, the flanges of the radiator piping and the tornapunta moulder are reinstalled. The whole floor is tamped after the installation of the parquet boards 10, and the installation is finished. A floorboard was previously described. Various changes can be made to the details of the invention without departing from its scope. In addition, the above description of the preferred embodiment of the invention and the best mode of practicing the invention are provided for the purpose of illustration only and not for the purpose of limiting the invention which is defined by the claims.

Claims (16)

1. A wooden parquet board, comprising: (a) an upper surface having a decorative finish; (b) a base surface opposite said upper surface, the base surface has a multiplicity of closely spaced notches extending in the floorboard from the base surface transverse to the length of the floorboard substantially all the way length of the length of the parquet board to release pressure and increase flexibility in the wood board to adhere more closely to irregularities in a subfloor; and (c) the parquet board has wood fibers extending substantially longitudinally in an area of the parquet board between the notches and the upper surface of the parquet board that has been weakened to a sufficient degree to release the board. tension on the upper surface of the parquet board and to equalize the tension on the wood fibers adjacent to both the upper surface and the base surface of the parquet board.

2. A wooden parquet board according to claim 1 and including fastening means extending along the length of the parquet board over the first and second opposite lateral edges to hold the adjacent parquet boards assembled side by side side to form an assembled wooden floor, the fastening means comprise a tongue formed on the first side edge of the parquet board and a groove formed in the second side edge of the parquet board, each of the tongue and groove Couple to connect with the complementary elements on the adjacent floorboards.

3. A wooden floor board according to claim 1 and including planking boards having opposite end portions, the end portions each having a single flat area encompassing the entire end portion of the surface area perpendicular to the plane of the floor. parquet board for overlapping coupling with similar flat areas on adjacent parquet boards.

4. A wooden parquet board according to claim 1 and including at least one strip of foam tape coated with pressure sensitive adhesive applied to the base surface to adhere the parquet board to the subfloor, and includes A protective cover that covers the adhesive until the removal just before the installation to the subsoil.

5. A wooden parquet board, comprising: (a) an upper surface that has a decorative finish; (b) a base surface opposite the top surface, the base surface has a multiplicity of closely spaced notches extending in the floorboard from the base surface transverse to the length of the floorboard substantially along of the entire length of the parquet board to release tension and increase the flexibility in the wooden board to adhere more closely to the irregularities of a subsoil; (c) the parquet board having wood fibers extending substantially longitudinally in an area of the parquet board between the notches and the top surface of the parquet board that have been weakened to a sufficient degree to release tension on the upper surface of the parquet board and to equalize the tension on the wood fibers adjacent to both the upper surface and the base surface of the parquet board; (d) fastening means extending along the length of the parquet board over the first and second opposing side edges to hold the adjacent parquet boards assembled side by side to form an assembled wood floor, the means of The fastening comprises a tongue formed on the first lateral edge of the parquet board and a groove formed in the second lateral edge of the parquet board, each of the tongue and groove being connected in engagement with the complementary elements on the parquet boards. adjacent; (e) the floorboards have opposite end portions, the end portions each having a single flat area encompassing the entire surface area of the end portion perpendicular to the plane of the floorboard for overlapping engagement with the flat areas similar on the adjacent parquet boards; and (f) at least one strip of foam tape coated with pressure sensitive adhesive applied to the base surface to adhere the parquet board to the subfloor, and includes a protective cover covering the adhesive until it is removed just prior to from the installation to the subsoil.

6. A parquet board according to claim 4 or 5, wherein the foam tape includes adhesive on the tape to adhere the tape to the base surface of the parquet board.

7. A parquet board according to claim 4 or 5, wherein the foam tape comprises a closed cell polyethylene foam.

8. A parquet board according to claim 4 or 5, wherein the adhesive comprises an acrylate pressure sensitive adhesive.

9. A parquet board according to claim 1 or 5, wherein the component for parquet is selected from the group consisting of solid wood board, laminated wood board, solid parquet block or laminated parquet block.

A parquet board according to claim 5, wherein the adhesive layer is placed on the base surface of the parquet board in spaced relation to both side edges to provide a contact surface of the mating surface for adhere the floor component to the subfloor while allowing the interconnection of the floorboard with a similar, adjacent parquet board, without contacting the adhesive with the subfloor.

11. A parquet board according to claim 1 or 5, wherein the parquet board includes an upper layer, an intermediate layer and a laminated base layer assembled in registration with one another.

12. A parquet board according to claim 1 or 5, wherein the notches in the parquet board are formed by notching the base layer of the parquet board.

13. A parquet board according to claim 1 or 5, wherein the notches in the parquet board are formed by adhering a plurality of separate pieces of wood in an arrangement to the intermediate layer.

A parquet board according to claim 7, wherein the parquet board includes two parallel and spaced lengths of foam tape extending along the length of the parquet board.

A parquet board according to claim 10, wherein the adhesive layer is placed on the base surface of the parquet board in spaced relationship to both side edges to provide a contact surface of the mating surface to adhere the floor component to the subfloor while allowing the interconnection of the parquet board with a similar, adjacent parquet board without contacting the adhesive with the subfloor.

16. A wooden parquet board, comprising: (a) an upper surface having a decorative finish; (b) a base surface opposite the top surface; and (c) a parquet board having wood fibers extending substantially longitudinally in an area of the parquet board between the base surface and the upper surface of the parquet board that have been weakened to a sufficient degree to provide increased flexibility to the parquet board and to equalize the stress on adjacent wood fibers to both the upper surface and the base surface of the parquet board, so that the parquet board remains flat without arching and has an improved tendency to remain flat when it is attached to a subsoil that has irregularities on the surface.