JP2013122150A - Wooden floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wooden floor material in which the turning up of functional sheets such as a moisture-proof sheet and a decorative sheet stuck on the surface and a reverse face of a base plate is suppressed.SOLUTION: A wooden floor material 1 has a tongue P with a protrusive strip portion 5 formed at one of opposed side ends of a square base plate 2 and a female tongue Q with a recessed groove portion 6 which can be fit to the protrusive strip portion 5 of an adjacently disposed base plate 2 at the other end. A recess 51 dented in the thickness direction of the base plate 2 is formed in the protrusive strip portion 5; a first functional sheet 3 and a second functional sheet 4 are disposed on the surface and on the reverse face of the base plate 2, respectively; the recess 51 of the protrusive strip portion 5 is coated by the first functional sheet 3 and/or the second functional sheet 4; and an end 3a of the first functional sheet 3 and an end 4a of the second functional sheet 4 are stored in the recess 51.

Description

  The present invention relates to a wooden flooring.

  Conventionally, a solid part (male, female) is formed on the side edge of a board (core material) made of wood plywood, particle board, MDF, or other wood board, and a makeup made of a veneer or synthetic resin on the surface of the board. Wooden flooring with sheets attached is known.

  For example, Patent Document 1 proposes a wooden floor material in which not only the front and back surfaces of a substrate (floor base material) but also the entire surface including the real part is covered with a moisture-proof sheet, and a wooden decorative veneer is attached to the surface. Has been. With this wooden floor material, it is possible to suppress moisture permeation from the mouth of the substrate, and it is possible to suppress warping of the floor material due to moisture, gaps, push-ups, and the like.

Japanese Patent Laid-Open No. 2000-274054

  In the wooden flooring of Patent Document 1, a wooden veneer veneer is attached to the surface, but in order to suppress moisture penetration from the wooden veneer veneer, for example, instead of this wooden veneer veneer, A form in which a moisture-proof decorative sheet made of synthetic resin or the like is attached to the surface of the substrate is also conceivable. In this case, the decorative sheet and the moisture-proof sheet for suppressing moisture permeation from the lip (real part) of the substrate are used in combination.

  When a decorative sheet is attached to the surface of the wooden flooring, and a moisture-proof sheet is attached to the back and the back, the actual part is covered when the wooden flooring is actually joined (male and female fitting). There is a risk that the edge of the moisture-proof sheet that has been rolled up. And when the edge part of a moisture-proof sheet rolls up, there exists a problem that it is difficult to suppress permeation of moisture in a real part.

  From the viewpoint of design, it is desirable that the decorative sheet on the surface side covers the side edge (near the real part) of the wooden flooring. However, in this case as well, the end of the decorative sheet may be rolled up due to actual bonding (male-female fitting) between the wooden flooring materials, which may have an adverse effect on the design. .

  The present invention has been made in view of the circumstances as described above, and provides a wooden floor material in which the rolling-up of functional sheets such as moisture-proof sheets and decorative sheets attached to the front and back surfaces of a substrate is suppressed. It is an issue.

  In order to solve the above-described problems, the wooden flooring of the present invention is formed with a male fruit having a protrusion on one of the opposing side ends of a rectangular substrate, and adjacent to the other of the side ends. A wooden floor material in which a female fruit having a recessed groove portion that can be fitted to a protruding portion of a substrate is formed, and the protruding portion is formed with a recess that is recessed in the thickness direction of the substrate, A first functional sheet is disposed on the front surface, a second functional sheet is disposed on the back surface, and the concave portion of the protrusion is covered with the first functional sheet and / or the second functional sheet. In addition, the end portion of the first functional sheet and the end portion of the second functional sheet are housed in the recess.

  In this wooden floor material, it is preferable that the substrate is one of particle board, MDF, and OSB.

  In this wooden floor material, it is more preferable that the first functional sheet is a decorative sheet and the second functional sheet is a moisture-proof sheet.

  In this wooden floor material, the concave portion of the ridge portion is formed at least on the surface side, and an end portion of the first functional sheet is housed in the concave portion, and the second function. It is preferable that the adhesive sheet covers the back surface side and the front end portion of the protruding portion, and the end portion is accommodated in the concave portion.

  According to the wooden flooring of the present invention, the functional sheet can be prevented from rolling up when the wooden flooring is actually joined (male and female fitting).

It is the cross-sectional schematic and partial enlarged view which illustrated one Embodiment of the wooden flooring of this invention. (A) is a schematic cross-sectional view illustrating a state before the wooden floor material illustrated in FIG. 1 is actually joined (male and female fitting), and (B) illustrates the wooden floor material illustrated in FIG. It is the cross-sectional schematic which illustrated the state made to couple | bond (male-female fitting). It is the cross-sectional schematic and partial enlarged view which illustrated another embodiment of the wooden flooring of this invention. It is the cross-sectional schematic and partial enlarged view which illustrated another embodiment of the wooden flooring of this invention.

  FIG. 1 is a schematic cross-sectional view and a partially enlarged view illustrating an embodiment of the wooden flooring of the present invention.

  The wooden flooring 1 has a substrate 2, a first functional sheet 3 adhered to the surface of the substrate 2, and a second functional sheet 4 adhered to the back surface of the substrate 2. .

  Examples of the material of the substrate 2 include woody materials such as particle board, MDF (medium density fiberboard), and OSB (oriented strand board). These wood-based materials are materials whose actual parts have lower strength than solid wood, but are easy to be subjected to actual processing.

  The board | substrate 2 is a planar view square shape, The male P which has the protrusion part 5 in one of the opposing side ends is formed. A female fruit Q having a groove 6 that can be fitted to the protrusion 5 is formed on the other of the opposing side ends. The male seed P and the female seed Q can be formed on the entire surface of the four side ends of the substrate 2, but are not particularly limited to this, and can be formed only on a part of the side ends.

  An inward cut groove 7 is formed in the vicinity of the base end portion on the surface side of the protruding portion 5 of the male P. The cut groove 7 is processed so that a hollow portion having a substantially triangular cross section is formed when the substrates 2 (wood flooring 1) are actually connected (male and female fitting). For this reason, for example, when nailing near the end of the substrate 2 (wood flooring 1), the head of the nail is stored in a hollow portion having a substantially triangular cross section, and the substrates 2 (wood flooring 1) are more Real connection (male-female fitting) can be ensured. In addition, when wax or the like is applied to the continuously arranged wooden flooring 1, the wax may invade from the connecting portion between the wooden flooring 1. In such a case, the invading wax is notched into the cut groove 7. It remains in the hollow portion having a substantially triangular cross section formed by For this reason, the swelling of the floor surface of a connection part vicinity etc. can be suppressed.

  Furthermore, a concave portion 51 that is recessed in the thickness direction of the substrate 2 is formed in the protruding portion 5 of the male P. The concave portion 51 is formed on the front surface side and the back surface side in the region from the base end portion of the ridge portion 5 to the vicinity of the center, and the thickness of this portion is compared with the vicinity of the distal end portion 52 of the ridge portion 5. Thinly formed. The depth of the recess 51a on the front surface side is equal to or greater than the thickness of the first functional sheet 3, and the depth of the recess 51b on the back surface side is the thickness of the second functional sheet 4. Is equal to or greater than

  The leading end 52 of the protruding portion 5 of the male P is chamfered so that the female Q can be easily inserted into the groove 6.

  The concave groove portion 6 of the female fruit Q has a front surface side edge portion 61, a back surface side edge portion 62, and a groove bottom portion 6a. The groove depth of the groove 6 of the female Q is substantially equal to the protruding length of the ridge 5, and the groove width of the groove 6 of the female Q is near the tip 52 of the ridge 5 (excluding the recess 51). The thickness of the region is substantially equal. Moreover, as for the concave groove part 6 of the female Q, the front end side of the back surface side edge part 62 inclines toward the back surface direction. For this reason, the groove width of the recessed groove portion 6 of the female fruit Q is slightly widened on the tip side, and the protrusion 5 of the male fruit P can be easily inserted into the recessed groove portion 6 of the female fruit Q. .

  A V-groove 21 is formed near the center on the surface side of the substrate 2. Further, a notch 8 is formed on the end surface of the substrate 2 on which the male fruit P and the female fruit Q are formed. The notch 8 is a V-groove near the center when the male P and female Q of the substrate 2 (wood flooring 1) are actually joined (male and female fitting). 21 so that a groove having substantially the same shape as 21 is formed.

  The substrate 2 has a first functional sheet 3 attached to the front side and a second functional sheet 4 attached to the back side. Here, the “functional sheet” refers to a sheet provided with desired functions such as moisture resistance, design, humidity control, and antiseptic properties that are required according to the installation environment of the wooden flooring 1.

  The first functional sheet 3 on the front side is preferably a decorative sheet excellent in design, for example, a decorative sheet made of a synthetic resin having a moisture-proof function and having various wood grain patterns and the like. Can do. Preferred examples of the synthetic resin for the decorative sheet include polypropylene, polyethylene, and polyvinyl chloride. Moreover, the thickness of a decorative sheet can illustrate preferably the range of about 100 micrometers-1.0 mm, for example.

The second functional sheet 4 on the back side is preferably a moisture-proof sheet, for example, a synthetic resin sheet or film such as polypropylene, polyethylene, or polyvinyl chloride, or a metal thin film sheet such as aluminum foil. can do. In addition, from the viewpoint of moisture resistance, these moisture-proof sheets can have a moisture permeability (water vapor permeability) of 50 g / m ² · 24 h or less as a rough standard. Moreover, the thickness of a moisture-proof sheet can illustrate preferably the range of about 50 micrometers-0.5 mm, for example.

  The method for attaching the first functional sheet 3 and the second functional sheet 4 to the substrate 2 is not particularly limited, and can be performed by a known method. Specifically, for example, when the first functional sheet 3 and the second functional sheet 4 are made of synthetic resin, it can be performed by thermally fusing the synthetic resin. Specifically, for example, heat fusion can be performed at around 180 ° C. in the case of polypropylene, and heat fusion can be performed at around 120 ° C. in the case of polyethylene. At this time, a lapping machine or the like that adheres a functional sheet in accordance with the shape of the substrate 2 while sequentially changing the tilt angle can be used as appropriate. Moreover, the 1st functional sheet 3 and the 2nd functional sheet 4 can also be stuck using adhesives for wood, such as a urethane resin adhesive and a melamine resin adhesive.

  The first functional sheet 3 is also in close contact with the V groove 21 on the surface of the substrate 2, and is adhered to the male fruit P and the female fruit Q at the side end of the substrate 2.

  Specifically, on the male P side, the first functional sheet 3 wraps around from the surface of the substrate 2 to the side edge, and is a recess on the surface side formed in the cut groove 7 and the protrusion 5. 51a is covered. The end portion 3 a of the first functional sheet 3 on the male P side is housed in a concave portion 51 a on the surface side formed in the ridge portion 5, and the inner side of the distal end portion 52 of the ridge portion 5. Is located. On the female Q side, the first functional sheet 3 covers the inside of the surface side edge portion 61 that wraps around from the surface of the substrate 2 to the side end to form the groove portion 6. The end 3 b of the first functional sheet 3 on the female Q side is located in the vicinity of the joint between the surface side edge 61 and the groove bottom 6 a of the groove 6.

  The second functional sheet 4 is stuck to the male fruit P and the female fruit Q at the side end of the substrate 2.

  Specifically, on the male P side, the second functional sheet 4 wraps around from the back surface of the substrate 2 to the side edge and covers the recess 51b on the back surface side formed in the protrusion 5. ing. The end 4 a of the second functional sheet 4 on the male P side is housed in a lower recess 51 formed in the ridge 5, and the inner side of the tip 52 of the ridge 5. Is located. On the female Q side, the second functional sheet 4 covers the inner side of the back surface side edge portion 62 that wraps around from the back surface to the side end to form the groove portion 6. The end 4 b of the second functional sheet 4 on the female Q side is located in the vicinity of the joint between the back-side edge 62 and the groove bottom 6 a of the groove 6.

  When the second functional sheet 4 is a moisture-proof sheet, the wooden flooring 1 can suppress moisture permeation on the back and side edges, and warp, gaps, and push-ups of the wooden flooring 1 due to moisture. Can be suppressed. Furthermore, for example, when the first functional sheet 3 is a decorative sheet having a moisture-proof function, the wooden flooring 1 can more effectively suppress moisture permeation at the surface and side edges.

  2A is a schematic cross-sectional view illustrating a state before the wood floor material illustrated in FIG. 1 is actually coupled (male and female fitting), and FIG. 2B is a wood texture illustrated in FIG. It is the cross-sectional schematic which illustrated the state which carried out actual coupling | bonding (male and female fitting) of the flooring.

  As illustrated in FIG. 2A, the wooden flooring 1 has an end 3 a of the first functional sheet 3 on the male P side in a recess 51 a on the surface side formed in the ridge 5. It is housed and located inside the tip 52 of the ridge 5. Further, the end 4 a of the second functional sheet 4 on the male P side is housed in a recess 51 b on the back surface side formed on the ridge 5, and inside the tip 52 of the ridge 5. positioned. For this reason, the end portion 52 of the first functional sheet 3 and the end portion 4 a of the second functional sheet 4 are hidden in the thickness direction of the substrate 2 by the distal end portion 52 of the protrusion 5. Therefore, as illustrated in FIG. 2B, when inserting the male P protrusion 5 into the groove 6 of the female Q, the end of the first functional sheet 3 on the male P side. The part 3a and the end part 4a of the second functional sheet 4 are unlikely to come into contact with the front side edge 61 and the back side edge 62 of the concave groove part 6. For this reason, it is suppressed that the edge part 3a of the 1st functional sheet 3 of the male P side and the edge part 4a of the 2nd functional sheet 4 rise.

  Furthermore, as illustrated in FIG. 2A, the wooden flooring 1 includes an end 3b of the first functional sheet 3 on the female fruit Q side and an end 4b of the second functional sheet 4 respectively. The front side edge 61 and the back side edge 62 are covered, and are located in the vicinity of the joint of the groove 6 with the groove bottom 6a. For this reason, the end 3 b of the first functional sheet 3 on the female Q side and the end 4 b of the second functional sheet 4 face the inner side of the side end of the substrate 2. Therefore, as illustrated in FIG. 2B, when inserting the male P protrusion 5 into the female Q concave groove 6, the end of the first functional sheet 3 on the female Q side. It is suppressed that the part 3b and the edge part 4b of the 2nd functional sheet 4 roll up.

  As described above, the wooden flooring 1 has the end portions 3a and 3b of the first functional sheet 3 and the end of the second functional sheet 4 at both the male fruit P side and the female fruit Q side. It is suppressed that the parts 4a and 4b are rolled up. For this reason, functions, such as a moisture-proof property and design nature, of the 1st functional sheet 3 and the 2nd functional sheet 4 are realizable certainly. In addition, since the end portions 3a and 3b of the first functional sheet 3 and the end portions 4a and 4b of the second functional sheet 4 are prevented from rolling up, actual connection (male and female fitting) is achieved. The stability of the can also be improved.

  FIG. 3 is a schematic cross-sectional view and a partial cross-sectional view illustrating another embodiment of the wooden flooring of the present invention. In FIG. 3, the same reference numerals are given to portions common to FIGS. 1 and 2, and description thereof is omitted below.

  The end 3 a of the first functional sheet 3 on the male P side is accommodated in a concave portion 51 a on the surface side formed in the ridge 5. On the other hand, the second functional sheet 4 on the male P side covers the concave portion 51b and the tip portion 52 on the back surface side of the ridge portion 5 and wraps around to the front surface side, and the end portion 4a is inside the concave portion 51a on the front surface side. And is opposed to the end portion 3 a of the first functional sheet 3.

  The end portion 52 of the first functional sheet 3 and the end portion 4 a of the second functional sheet 4 that are located in the concave portion 51 a on the surface side are hidden in the thickness direction of the substrate 2 by the front end portion 52 of the protrusion 5. It is in the state. For this reason, when inserting the protrusion 5 of the male P into the concave groove 6 of the female Q, the first functional sheet on the male P side is formed by the surface side edge 61 that forms the concave groove 6. 3 and the end portion 4a of the second functional sheet 4 are prevented from rolling up. In addition, since the entire tip 52 of the ridge 5 is covered and reinforced by the second functional sheet 4, the strength of the actual parts such as particle board, MDF, OSB, etc. is higher than that of the solid material. Even with low materials, the actual strength is high.

  FIG. 4 is a schematic cross-sectional view and a partial cross-sectional view illustrating still another embodiment of the wooden flooring of the present invention. In FIG. 4, the same reference numerals are given to portions common to FIGS. 1 and 2, and description thereof is omitted below.

  The end 3 a of the first functional sheet 3 on the male P side is accommodated in a concave portion 51 a on the surface side formed in the ridge 5. On the other hand, the second functional sheet 4 on the male P side covers the concave portion 51b and the tip portion 52 on the back surface side of the ridge 5 and wraps around to the front surface side, and the end portion 4a is inside the concave portion 51a on the front surface side. The first functional sheet 3 is positioned so as to overlap with the upper side (surface side) of the first functional sheet 3.

  Also in this form, the end portion 3a of the first functional sheet 3 and the end portion 4a of the second functional sheet 4 located in the concave portion 51a on the surface side are formed by the front end portion 52 of the ridge portion 5 into the substrate 2. It becomes a state hidden in the thickness direction. For this reason, when inserting the protrusion 5 of the male P into the concave groove 6 of the female Q, the first functional sheet on the male P side is formed by the surface side edge 61 that forms the concave groove 6. 3 and the end portion 4a of the second functional sheet 4 are prevented from rolling up.

  The wooden flooring of the present invention is not limited to the above form. For example, the shape and formation position of the concave portion of the ridge portion in the male can be appropriately designed. For example, the concave portion can be provided only on the front surface side and the arrangement on the back surface side can be omitted. In addition, the shape and dimensions of the male ridges and female grooves can be appropriately designed within a range that does not hinder stable actual bonding in consideration of the thickness of the functional sheet.

DESCRIPTION OF SYMBOLS 1 Wood flooring 2 Board | substrate 3 1st functional sheet 4 2nd functional sheet 5 Projection part 51 Concave part 6 Concave groove part P Male fruit Q Female fruit

Claims (4)

A male fruit having a ridge portion is formed on one of the opposite side ends of the rectangular substrate, and a female fruit having a concave groove portion that can be fitted to the ridge portion of the substrate disposed adjacent to the other side edge. Formed wooden flooring,
The protrusion is formed with a recess recessed in the thickness direction of the substrate,
A first functional sheet is disposed on the front surface of the substrate, a second functional sheet is disposed on the back surface, and the concave portion of the ridge portion is the first functional sheet and / or the second functional sheet. The wooden flooring is characterized in that the end of the first functional sheet and the end of the second functional sheet are housed in the recess.   2. The wooden flooring according to claim 1, wherein the substrate is one of particle board, MDF, and OSB.   The wooden flooring according to claim 1 or 2, wherein the first functional sheet is a decorative sheet, and the second functional sheet is a moisture-proof sheet.   The recess of the protrusion is formed at least on the surface side, the end of the first functional sheet is housed in the recess, and the second functional sheet is the protrusion. The wooden flooring according to any one of claims 1 to 3, wherein the back surface side and the front end portion of the portion are covered, and the end portion is accommodated in the concave portion.

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