JP2009057797A - Floor plate and floor structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor plate which ensures good appearance without forming a gap at a fitting portion between the floor plates even if a substrate of each floor plate is dried and shrunk, and to provide a floor structure. <P>SOLUTION: According to the structure of the floor plate, the substrate 11 is formed like a substantial rectangle in plan, and has male tongues 13a, 13b formed on two sides adjacent to each other, and female grooves formed in the other two sides. When a cushion material 12 is stuck to a rear surface of the substrate 11, the cushion material 12 is stuck in a manner protruding from the male tongue 13a, and therefore a protrusion 12a is formed on a protruding side while a space 16 is formed on an opposite side to the protruding side and on a substrate rear side and. Further the floor plate has a restraining material 15 rigidly stuck to a surface of the cushion material in a manner squeezing from a surface of the protrusion of the cushion material into a gap between the substrate rear surface and the cushion material. The restraining material 15 is made of a material that is small in extension at least in a direction orthogonal to a protruding direction of the cushion material protrusion. Therefore even if the water content of the substrate is decreased, the tendency of shrinkage of the substrate is restrained by the restraining material, and the locational relationship between the floor plates is forcedly maintained, to thereby prevent formation of the gap. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a floor board and a floor structure.

In a conventional floor board, a cushioning material is attached to the back surface of the substrate to improve the familiarity with the floor base. At this time, as described in Patent Document 1, the cushioning material is applied to the substrate. It has been proposed to stick in a state of being shifted. If it does in this way, the fruit for fitting will be formed corresponding to the gap between a substrate and a cushion material, and these floor boards can be mutually fitted and it can connect floor boards without gap.
JP-A-3-33362

  However, even if the floor boards can be connected with no gap at the beginning of construction, if the moisture content of the board decreases with subsequent drying in the room, the board shrinks, and there is a gap in the fitting part between the floor boards. Cause it to occur.

  Therefore, an object of the present invention is to provide a floor board and a floor structure that can maintain a good appearance without generating a gap in a fitting portion between the floor boards even when the board of the floor board is dried and contracted. .

  In order to achieve the above object, the present invention according to claim 1 includes a substrate having a substantially rectangular shape in plan view and having a male fruit on two adjacent sides and a female fruit on the remaining two sides, and a back surface of the substrate. A cushioning material to be adhered, and the cushioning material is shifted and stuck so as to project from one side of the back surface of the substrate or from two adjacent sides on which the same fruit is formed. In the floor plate in which a space is formed on the back surface side of the substrate on the side facing the protruding portion and the protruding portion of the adjacent floor plate can be inserted, the protruding direction of the protruding portion of the cushion material or the protruding direction and this A constraining material made of a material having a small elongation in two directions orthogonal to each other is adhered and fixed so as to enter between the back surface of the substrate and the cushion material from the surface of the protruding portion of the cushion material.

  According to a second aspect of the present invention, there is provided a floor structure in which the floor board according to the first aspect is laid on a floor base to form a floor, and the male and female of the adjacent floor board and the female of the other floor board are formed. The protrusions of the cushion material of one floor board are inserted into the space formed on the back side of the board of the other floor board, and adjacent to each other by the adhesive applied on the restraint material It is characterized in that floor boards to be connected are connected.

  In the floor board of the present invention, a restraining material is stuck and fixed so as to enter between the back surface of the substrate and the cushion material from the surface of the protruding portion of the cushion material. Therefore, the female body and the male body of the board of the floor board are fitted to each other, the cushion material protruding part of one floor board is inserted into the space formed on the back side of the board of the other floor board, and the restraint material When the adjacent floor boards are connected to each other by the adhesive applied thereon, the restraining material works to fix the boards of the adjacent floor boards. The restraining material is made of a material that hardly extends in the projecting direction of the projecting portion or in the two directions of the projecting direction and the direction orthogonal thereto, so that even if the moisture content of the substrate decreases, the restraining motion is restrained by it. Thus, the relative positional relationship between the floor boards is forcibly maintained to prevent the occurrence of gaps.

  The floor board of the present invention is constructed on a floor base (concrete slab, floor base material, etc.), and includes a substrate, a cushioning material, and a restraining material as its constituent elements.

  The substrate is made of a wood-based material such as plywood, wood fiber board (MDF, etc.), or solid wood material. Examples of the dimensions of the substrate include a width (short-side dimension) W = 150 mm, a length (longitudinal dimension) L = 900 mm, and a thickness H = 7 mm, 9 mm. The shape of the substrate is substantially rectangular in a plan view, and a male fruit is formed on two adjacent sides, and a female fruit is formed on the other two sides.

  The cushioning material preferably has a necessary elastic deformation property or cushioning property in order to improve familiarity with the floor base and walkability, and preferably has soundproofing performance, and urethane resin foam, polyethylene resin foam, etc. are suitable. used. The dimensions of the cushion material are substantially the same or smaller than the length or width of the substrate. (Longitudinal dimension) A cushioning material having L = 900 mm and a thickness H = 4.5 mm can be used. The thickness of the cushion material varies depending on the required soundproofing performance.

  The cushion material is formed so as to protrude from one side of the back surface of the substrate or from two adjacent sides on which the same fruit is formed, and is attached to the back surface of the substrate to form a protruding portion, and is opposed to the protruding portion. A space is formed in the side on the back side of the substrate. The protruding part of the adjacent floor board is inserted into this space. The protrusion dimension of the protrusion is, for example, about 50 to 300 mm.

  The constraining material is formed of a material that has a small extension in the protruding direction of the protruding portion of the cushion material or in the two directions of the protruding direction and the direction perpendicular to the protruding direction in a state where the binding material is attached to the back side of the connecting portion between the substrates. The Since it is considered that the tensile strength increases as the elongation of the restraining material decreases, more specifically, the restraining material preferably has a tensile strength of 120 to 900 kg per inch of length. A more preferable restraining material has a tensile strength of 200 to 400 kg per inch of length. If the tensile strength of the restraint material is less than 120 kg, the restraint material strength is insufficient, and the action of restraining the movement of the floor board substrate to dry and shrink cannot be sufficiently obtained, so that a gap is generated in the joint portion between the floor boards. I can't prevent that. The greater the tensile strength of the restraining material (the smaller the elongation), the greater the effect of preventing the generation of gaps. However, when the amount exceeds 900 kg, the strength of the restraining material becomes greater than necessary with respect to the wooden substrate, which is uneconomical. When this is viewed in terms of elongation (elongation rate), the constraining material has an elongation of 10 to 40%, preferably 15 to 25%.

  Examples of the binding material include woven fabrics of fibers such as polyester, vinylon, polypropylene, nylon (registered trademark, general name polyamide), aramid, and kevlar, and non-woven fabrics such as filament, spunbond, spunlace, tiebeck, and needle punch. Can be used. These woven fabrics and nonwoven fabrics have a smaller elongation as the tensile strength increases.

  The restraining material is stuck and fixed so as to enter between the back surface of the cushion material and the cushion material from the surface of the protruding portion of the cushion material. It is preferable that 50 mm or more of width is continuously pasted to the protruding cushion material protruding portion side.

  As an adhesive applied on the restraint material when obtaining the floor structure of the present invention, urethane-based, epoxy-based, or water-resistant emulsion-based adhesive such as water-based vinyl urethane-based or ethylene vinyl acetate-based is used. To do.

  1 to 4 show a floor board according to an embodiment of the present invention. The floor board 10 has a substantially rectangular cushion material 12 having a substantially rectangular shape in plan view formed on the back surface of a substantially rectangular substrate 11 in plan view from the side of the male 13a formed along the short direction of the substrate 11. The protruding portion 12a is formed by sticking so as to protrude in the direction (longitudinal direction of the floor plate), and the side (female 14a side) facing the protruding portion 12a has a space on the back side of the substrate 11 16 is formed. Further, the restraining material 15 is stuck so as to partially enter the inside between the substrate 11 and the cushion material 12 from the surface of the cushion material protrusion 12a. As an adhesive for adhering the restraining material 15 to the surface of the cushion material 12, a water-based vinyl urethane system, an ethylene vinyl acetate system, or the like is used, and is applied by applying a pressure plate or heat in a factory. A urethane-based adhesive may be used.

  The restraint member 15 has a portion 15a attached to the surface of the cushion material protrusion 12a and a portion 15b attached between the substrate 11 and the cushion material 12 with the male 13a as a boundary. These parts 15a and 15b are provided over 50 mm or more. Therefore, when the cushion material protrusion 12a has a protrusion length of 50 mm or more, the restraining material 15 does not necessarily have to be attached to the entire surface of the cushion material protrusion 12a, and the cushion material extends over 50 mm on the male 13a side. What is necessary is just to be stuck on the surface of the protrusion part 12a. The restraint member 15 has a tensile strength of 120 to 900 kg per inch in length in at least one direction (projection direction of the cushion material protrusion 12a = longitudinal direction of the floorboard), and is 10 to 40%, preferably 15 to 25%. Elongation of

  5 to 8 show floorboards according to other embodiments of the present invention. The floor plate 20 includes a male body 23a in which a cushion member 22 having a substantially rectangular shape in plan view is formed on the back surface of a substrate 21 having a substantially rectangular shape in plan view along the short direction of the substrate 21 and a longitudinal direction. The protrusions 22a and 22b are formed by sticking so as to protrude in both directions (the floorboard longitudinal direction and the short direction) from the male fruit 23b formed along the protrusions 22a and 22b. Spaces 26 a and 26 b are formed on the back side of the substrate 21 on the opposing sides (on the side of the females 24 a and 24 b). Furthermore, the restraining material 25 is stuck so as to partially enter the inside between the substrate 21 and the cushion material 22 from the surface of the cushion material protrusions 22a and 22b. As an adhesive for adhering the restraining material 25 to the surface of the cushion material 22, a water-based vinyl urethane system, an ethylene vinyl acetate system, or the like is used, and is applied by applying a pressure plate or heat in a factory. A urethane-based adhesive may be used.

  The restraint member 25 includes a portion 25a attached to the surface of the cushion material protrusions 22a and 22b and a portion 25b attached between the substrate 21 and the cushion material 22 with the male fruits 23a and 23b as a boundary. However, both of these portions 25a and 25b are provided over 50 mm or more. Therefore, when the cushion material protrusions 22a and 22b have a protrusion length of 50 mm or more, it is not always necessary to attach the restraint material 25 to the entire surface of the cushion material protrusions 22a and 22b, and 50 mm on the males 23a and 23b side. What is necessary is just to stick on the surface of cushion material protrusion part 22a, 22b over the above. The restraint member 25 has a tensile strength of 120 to 900 kg per inch in the short side direction and the long side direction of the floor board 20, and has an elongation of 10 to 40%, preferably 15 to 25%.

  The restraint member 25 has a portion 25a attached to the surface of the cushion material protrusions 22a and 22b and a portion 25b attached between the substrate 21 and the cushion material 22, and has an L shape as a whole. Have. As shown in FIG. 9, a single L-shaped restraining material 251 may be attached to the cushion material 22, or two rectangular restraining materials 252 and 253 are combined as shown in FIG. Then, it may be attached to the cushion material 22 so that the whole is L-shaped. In the case of FIG. 10, if the widths of the restraining members 252 and 253 in the short direction are the same, the restraining members 252 and 253 are obtained by cutting the restraining members of the same width to a predetermined length, and these are formed in an L-shape. Can be attached to the cushion material 22 at right angles to each other, and the cost of the restraint material can be reduced.

  When using one L-shaped restraining member 251 as shown in FIG. 9, the tensile strength is 120 to 900 kg per inch in length in two orthogonal directions (longitudinal direction and short direction) of the restraining member. However, when two rectangular restraints 252 and 253 are used as shown in FIG. 10, the tensile strength is 120 to 900 kg per inch in the short direction of these restraints. Or having an elongation of 10 to 40%, preferably 15 to 25%.

A floor structure using the floor board 10 is shown in FIG. This floor structure can be obtained through the following construction procedure (see FIG. 12).
(1) The adhesive 19 is applied on the floor base or the concrete slab 17.
(2) One floor board 10A is placed on the concrete slab 17, and the floor board 10A is bonded to the concrete slab 17 by the applied adhesive 19.
(3) The adhesive 18 is applied onto the restraining material 15 (restraining material portion 15a) that is exposed and adhered to the surface of the cushioning material protruding portion 12a of the floor board 10A.
(4) The female fruit 14a of another floor board 10B is fitted to the male fruit 13a of this floor board, and the cushion member protrusion 12a of the floor board 10A in which the substrate 11 on the female fruit 14a side of the other floor board 10B is first laid. It adheres to the upper restraint material 15 (15a), and the floor board 10B is adhered to the concrete slab 17. Thereby, adjacent floor boards 10A and 10B are connected and fixed.
(5) By repeating the above (3) and (4), the floor structure shown in FIG. 11 is obtained.

  It should be noted that the adhesive 19 used for applying on the concrete slab 17 in (1) and sticking the floor boards 10A, 10B, and the adjacent floor board 10B applied to the exposed portion of the restraining material 15 in (3). As the adhesive 18 used for connecting the two, an adhesive such as urethane or epoxy that can exert a strong adhesive force without applying pressure or heat is used.

  In this floor structure, the cushion material protrusion 12a of the floor board 10A is inserted and accommodated in a space 16 formed on the back surface of the substrate 11 on the female fruit 14a side of the adjacent floor board 10B. On the side of the male fruit 13a of the floor board 10A to be fitted to the female fruit 14a of the floor board 10B, a restraining material 15 having a predetermined width (100 mm or more) is pasted along the actual connecting portion across the male fruit 13a. Since the restraining material 15 is formed of a material having a small elongation in the projecting direction of at least the cushion material projecting portion 12a, even if the moisture content of the substrate is lowered, the restraint movement is restrained thereby, and the relative movement of the floor plates is restricted. The target positional relationship is forcibly maintained, and the generation of gaps is prevented.

  The construction procedure for obtaining the floor structure using the floor board 20 is substantially the same as described above. Since the cushion material protrusions 22a and 22b protrude in two directions on the floor board 20, the operation (4) is performed in two directions, the longitudinal direction and the short direction of the floor board.

It is a perspective view of the floor board by one Embodiment of this invention. It is a top view of this floor board. It is XX sectional drawing in FIG. It is YY sectional drawing in FIG. It is a perspective view of the floor board by other embodiments of the present invention. It is a top view of this floor board. It is X'-X 'sectional drawing in FIG. FIG. 7 is a Y′-Y ′ cross-sectional view in FIG. 6. It is a cushion material top view at the time of using one restraint material for the surface of a cushion material in this embodiment. In this embodiment, it is a cushion material top view in the case of combining two restraining materials on the surface of a cushion material. It is sectional drawing of the floor structure by one Embodiment of this invention. It is sectional drawing explaining the construction procedure for obtaining this floor structure.

Explanation of symbols

10 (10A, 10B) Floor board 11 Substrate 12 Cushion material 12a Cushion material protrusions 13a, 13b Male fruit 14a, 14b Female fruit 15 Restriction material 15a Restriction material part 15b adhered to the cushion material protrusion part surface Base material and cushion material Restraint material portion 16 adhered between the space 17 Slabs 18 and 19 Adhesive 20 Floor board 21 Substrate 22 Cushion materials 22a and 22b Cushion material projections 23a and 23b Male seeds 24a and 24b Female seeds 25, 251, 252, 253 Spacer 26a, 26b Space

Claims (2)

The substrate has a substantially rectangular shape in plan view and has a male body formed on two adjacent sides and a female body formed on the remaining two sides, and a cushion material attached to the back surface of the substrate. A protruding part is formed by sticking so as to protrude from two adjacent sides on which one side or the same fruit is formed, and there is a space on the back side of the substrate on the side facing the protruding part. In the floor plate that is formed and is capable of inserting the protruding portion of the adjacent floor plate, a restraining material made of a material that has a small extension in the protruding direction of the protruding portion of the cushion material or in the two directions of the protruding direction and the direction orthogonal thereto is provided. A floor board characterized in that it is stuck and fixed so as to enter between the back surface of the substrate and the cushion material from the surface of the protruding portion of the cushion material. In the floor structure in which the floor plate according to claim 1 is laid on the floor base to form a floor, the male and female substrates of one adjacent floor plate and the female substrate of the other floor plate are fitted to each other. In addition, the protruding portion of the cushion material of one floor board is inserted into the space formed on the back side of the substrate of the other floor board, and adjacent floor boards are connected by an adhesive applied on the restraint material. Floor structure characterized by.

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