JP2022181860A - Floor material and method for attaching floor material - Google Patents

Abstract

To provide a floor material which prevents floating and can be replaced without destroying the tongue portion.SOLUTION: A floor material 1 has a first tongue portion 13 and a second tongue portion 14 . The first tongue portion 13 has a front-side protruding portion 131 and a rear-side notch portion 132. The front-side protruding portion 131 has a first upper sloped portion 133 whose upper surface slopes outward to the rear side of the floor material, and a first tip portion 134 perpendicular to the floor material surface. The second tongue portion 14 has a rear-side convex portion 141 and a front-side convex portion 142. A concave portion 143 is formed between the rear-side convex portion 141 and the front-side convex portion 142. The front-side convex portion 142 has a second tip portion 146 perpendicular to the floor material surface. The first tongue portion 13 and the second tongue portion 14 are tongue-connected by fitting the front-side protruding portion 131 into the convex portion 143 of the adjacent floor material 1 .SELECTED DRAWING: Figure 2

Description

There is an application for exception to loss of novelty

The present invention relates to a flooring material and a method for attaching the flooring material.

The floor material is formed with male and female nuts at its side ends. When arranging a plurality of flooring materials, by combining the male and female flooring materials adjacent to each other, the plurality of flooring materials are integrated to prevent the flooring materials from lifting up one by one. The material is positioned.

In recent years, there has been an increase in demand for renovation of rental properties and existing detached houses. With the increase in renovation demand, there is a demand for flooring that can be installed directly on existing flooring from the viewpoint of shortening the construction period. This type of flooring material is required to have a thin product thickness due to the property that the flooring material is to be laminated on top of existing building materials.

It is known that when the product thickness of the flooring material is to be reduced, the flooring material is provided with a shell-like solid portion. For example, a floor material having a cobble-shaped solid portion is provided with a cocoon-shaped solid portion protruding from the surface side at one end in the width direction of the base material layer, and adjacent to the other end in the width direction. The construction is such that a shell-like solid portion protruding from the rear surface side that is actually joined to the solid portion at one end in the width direction of the floor material installed as the floor material is provided. Then, the flooring materials are combined by overlapping the cobble-shaped real parts of the adjacent flooring materials.

When these cocoon-like solid parts are superimposed, the cocoon-like solid part on the front side rises from the cocoon-like solid part on the back side, causing the floor material to warp or cause the adjacent floor to warp. There may be gaps in the material. In that case, rattling, creaking, and the like are likely to occur on the floor surface. Patent Literature 1 discloses a floor material having a structure that can be tightly joined without backlash. The floor material described in Patent Document 1 has a joint groove at one end and a joint ridge at the other end. The joint groove has an acute-angled cross-sectional shape toward the inside of the floor material, and the joint ridge has an acute-angled cross-sectional shape corresponding to the cross-section of the joint groove. The joint ridges of the floor materials are fitted into the joint grooves of the adjacent floor materials so as to be in close contact with each other.

JP-A-2000-17814

By the way, at the time of renovation, it is possible to replace the floor material (for example, replace one floor material) by removing a part of the floor material from the existing floor material and attaching a new floor material. be. In this case, in the flooring material disclosed in Patent Document 1, when a new flooring material is attached, it is necessary to remove the real part of the new flooring material (the part located below the joining ridges of the adjacent flooring materials). There is In other words, with the flooring material disclosed in Patent Document 1, it is not possible to replace the flooring material without destroying the actual portion of the flooring material.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a flooring material which prevents lifting and can be replaced without destroying the solid portion, and a method for attaching the flooring material.

In order to achieve the above object, the flooring material of the present invention is
A flooring material extending in one direction,
In the cross section perpendicular to the one direction, when the real part provided at one end of the flooring material is the first real part and the real part provided at the other end of the flooring material is the second real part,
The first real part is
a surface-side protruding portion provided to protrude outward on the surface side of the one end;
a back side notch provided in a notch shape on the back side of the one end;
has
The surface-side protruding portion has a first upper surface inclined portion whose upper surface slopes outward toward the back surface, and a first tip portion perpendicular to the surface,
The second real part is
a back-surface-side protrusion provided to protrude outward on the back-surface side of the other end;
a surface-side convex portion provided to protrude outward on the surface side of the other end and forming a concave portion between itself and the back-side convex portion;
has
The surface-side protrusion has a second tip perpendicular to the surface,
The first real portion and the second real portion are actually connected by fitting the surface-side projecting portion into the concave portion of the adjacent floor material.

Further, in order to achieve the above object, the method for attaching a flooring material according to the present invention comprises:
A method for attaching a flooring material according to the present invention, comprising:
The first floor material and the second floor material are installed with a gap, and the first real part of the first floor material and the second real part of the second floor material face each other. , when attaching a third floor material between the first floor material and the second floor material,
applying an adhesive to a substrate between the first floor covering and the second floor covering;
The rear-side convex portion of the second real portion of the third floor material in an oblique state in which the second real portion of the third floor material is lower than the first real portion of the third floor material. a step of inserting into the back side notch portion of the first real portion of the first floor material;
The first real part side of the third floor material is pressed against the second real part side, and the surface-side protruding part of the first real part of the third floor material fitting into the recess of the second real part;
have

According to the present invention, it is possible to prevent the floor material from floating and to replace the floor material without destroying the solid portion.

FIG. 1 is a plan view of the floor material. FIG. 2 is a cross-sectional view along line II-II in FIG. FIG. 3 is a diagram showing a state in which the first real portion and the second real portion are actually coupled. FIG. 4 is a diagram for explaining the actual engagement allowance. FIG. 5 is a cross-sectional view of a floor material showing another example of surface-side protrusions. FIG. 6 is a diagram for explaining a method of constructing a new floor material between two floor materials.

A flooring material according to the present embodiment will be described below with reference to the drawings. The flooring material according to the present embodiment is, for example, a flooring material that can be directly installed on an existing flooring material when renovating a house. Moreover, the flooring according to the present embodiment is configured such that after construction, a part of the constructed flooring can be replaced without destroying the flooring.

FIG. 1 is a plan view of the floor material 1. FIG. FIG. 2 is a cross-sectional view along line II-II in FIG.

The floor material 1 extends in one direction. The floor material 1 includes a base material 10, a decorative material 11, and a back material 12. - 特許庁The floor material 1 is configured by laminating a decorative material 11, a base material 10, and a backing material 12 in this order. In the following description, the decorative material 11 side is defined as the front side, and the back material 12 side is defined as the back side. Further, one direction in which the flooring 1 extends is called the longitudinal direction, and a direction orthogonal to the longitudinal direction in plan view of FIG. 1 is called the width direction. In addition, in FIG. 2, the length in the width direction is partially omitted.

The base material 10 is composed of a wood base material, a resin molding base material, a gypsum base material, a mineral fiber base material, or a mixture thereof. Examples of wood substrates include plywood, LVL (Laminated Veneer Lumber), MDF (Medium Density Fiberboard), HDF (High Density Fiberboard), particle board, OSB ( Oriented Strand Board), etc. Examples of the composite include wood flour plastic, which is a mixture of wood flour and resin, or SPC (Stone Plastic Composite), which is a mixture of calcium carbonate and vinyl chloride resin.

The decorative material 11 is laminated on the surface of the base material 10 via an adhesive layer. The decorative material 11 is composed of, for example, wooden decoration, a resin sheet, or a paper sheet. The wooden decoration is veneer or sawn board. The resin sheet is, for example, an olefin sheet or a vinyl chloride sheet. A pattern may be printed on the paper sheet.

The back material 12 is laminated on the back surface of the base material 10 via an adhesive layer. The backing material 12 is composed of, for example, a resin sheet, a moisture-proof sheet, or a wood sheet. The resin sheet is, for example, polyethylene resin, polypropylene resin, polyethylene terephthalate resin, acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS resin), polystyrene resin, or polyvinyl chloride resin. The moisture-proof sheet is, for example, laminated paper obtained by laminating resin on paper, or a metal sheet such as aluminum foil. A wood sheet is, for example, a veneer.

By providing the backing material 12, it is possible to balance the front and back with the decorative material 11, and to make the flooring 1 less likely to warp. When the backing material 12 is a resin sheet or a moisture-proof sheet, providing the backing material 12 prevents elongation of the flooring material 1 caused by the movement of water in the construction adhesive of the flooring material 1 to the base material 10. Warpage can be suppressed.

The thicknesses of the base material 10, the decorative material 11 and the backing material 12 are not particularly limited, but the total thickness of the flooring material 1 is preferably 1.5 mm to 6.0 mm, more preferably 1.5 mm to 4.0 mm. . By reducing the total thickness of the floor material 1, the floor material 1 can be directly installed on the existing floor material.

The flooring 1 has solid portions at one end and the other end in the width direction. In the following description, in a cross section orthogonal to the longitudinal direction, the solid portion provided at one end of the flooring 1 is referred to as a first solid portion 13, and the solid portion provided at the other end of the flooring 1 is referred to as a second solid portion. Call it Part 14. Although the details will be described later, the first real portion 13 of one flooring material 1 is actually connected to the second realm portion 14 of the flooring material 1 adjacent to the one flooring material 1 . The first real portion 13 and the second real portion 14 are configured to be difficult to break when the first real portion 13 and the second real portion 14 are actually coupled.

FIG. 3 is a diagram showing a state in which the first real portion 13 and the second real portion 14 are actually coupled. The first real portion 13 and the second real portion 14 will be described below with reference to FIGS. 1 to 3. FIG.

The first real portion 13 has a front-side projecting portion 131 and a back-side notch portion 132 . The surface-side protruding portion 131 is provided on the surface side of one end of the flooring 1 so as to protrude outward. The back side notch 132 is provided in a notch shape on the back side of one end of the flooring 1 .

The surface-side projecting portion 131 has a first upper surface inclined portion 133 and a first tip portion 134 .

The first upper surface inclined portion 133 is the upper surface of the surface-side projecting portion 131 and is inclined outward toward the rear surface side of the flooring 1 . When the first real portion 13 and the second real portion 14 are actually connected, the first upper surface inclined portion 133 forms part of the groove of the flooring 1 .

The first tip portion 134 is the tip surface of the surface-side projecting portion 131 and is perpendicular to the surface of the flooring 1 . In addition, the first tip portion 134 includes a curved surface, and also includes a surface inclined by about ±5° with respect to the thickness direction. The length of the first tip portion 134 in the thickness direction of the flooring 1 is 0.1 mm or more. Although the details will be described later, since the first tip portion 134 is perpendicular to the surface of the flooring 1, when the first real portion 13 and the second real portion 14 are actually connected, the surface side projecting portion The tip of 131 is hard to break. Also, as will be described later, when the flooring 1 is attached, the first tip portion 134 and the second tip portion 146 are portions that interfere with each other, and it is preferable to make this interference portion smaller. Therefore, the length of the first tip portion 134 is 1.0 mm or less, preferably 0.9 mm or less, more preferably 0.8 mm or less, still more preferably 0.7 mm or less, and more preferably 0.7 mm or less. It is preferably 0.6 mm or less, more preferably 0.5 mm or less.

The lower surface of the front-side projecting portion 131 is substantially parallel to the width direction and forms part of the back-side notch portion 132 .

The second real portion 14 has a back-side convex portion 141 and a front-side convex portion 142 .

The back-side convex portion 141 is provided on the back side of the other end of the flooring 1 so as to protrude outward. The back-side protrusion 141 protrudes further outward than the front-side protrusion 142, which will be described later, and its upper surface is substantially parallel to the width direction. When the first real portion 13 and the second real portion 14 are actually connected, the rear projection 141 is in contact with the lower surface of the rear projection 131 in contact with the upper surface of the rear projection 141 . It is positioned in the back side notch portion 132 of the solid portion 13 .

The surface-side convex portion 142 is provided on the surface side of the other end of the flooring 1 so as to protrude outward. A concave portion 143 is formed between the rear-side convex portion 141 and the front-side convex portion 142 . When the first real portion 13 and the second real portion 14 are actually coupled, the surface-side projecting portion 131 of the first real portion 13 is fitted into the concave portion 143 .

The surface-side convex portion 142 has a lower surface inclined portion 144 , a second upper surface inclined portion 145 and a second tip portion 146 .

The lower surface inclined portion 144 is the lower surface of the surface-side convex portion 142 and is inclined toward the surface side of the flooring 1 toward the outside. The inclination angle of the lower surface inclined portion 144 with respect to the width direction is substantially the same as the inclination angle of the first upper surface inclined portion 133 with respect to the width direction. The lower inclined portion 144 forms a concave portion 143 together with the upper surface of the rear convex portion 141 . When the first real portion 13 and the second real portion 14 are actually connected, the lower sloped portion 144 is in contact with the first upper sloped portion 133 of the front-side projecting portion 131, and the upper surface of the rear-side protrusion 141 is in contact with the front surface. It contacts the lower surface of the side projecting portion 131 . Note that the lower inclined portion 144 may be a surface parallel to the width direction.

The second upper surface inclined portion 145 is the upper surface of the surface-side convex portion 142 and is inclined outward toward the rear surface side of the flooring 1 . When the first real portion 13 and the second real portion 14 are actually connected, the second upper surface inclined portion 145 is attached to the floor material 1 together with the above-described first upper surface inclined portion 133 and the later-described second tip portion 146. grooves are formed.

The second tip portion 146 is the tip surface of the surface-side convex portion 142 and is perpendicular to the surface of the flooring 1 . In addition, the second tip portion 146 includes a curved surface, and also includes a surface inclined by about ±5° with respect to the thickness direction. The length of the second tip portion 146 in the thickness direction of the flooring 1 is 0.1 mm or more. Since the second tip part 146 is perpendicular to the surface of the flooring 1, the tip part of the surface-side convex part 142 is broken when the first real part 13 and the second real part 14 are actually joined. less likely to be As will be described later, when the flooring 1 is attached, the first tip portion 134 and the second tip portion 146 are portions that interfere with each other, and it is preferable to make this interference portion smaller. Further, by making the length of the second tip portion 146 smaller, the step of the groove of the floor material formed by the second upper slope portion 145, the first upper slope portion 133, and the second tip portion 146 can be made smaller. and the design of the floor can be improved. Therefore, the length of the second tip 146 is 1.0 mm or less, preferably 0.9 mm or less, more preferably 0.8 mm or less, even more preferably 0.7 mm or less, more preferably 0.6 mm. 0.5 mm or less, more preferably 0.5 mm or less.

Here, in the state where the first real portion 13 and the second real portion 14 are actually coupled, the distance in the width direction between the first tip portion 134 and the second tip portion 146 is referred to as a real engagement margin W. . FIG. 4 is a diagram for explaining the actual engagement allowance W. FIG. It is preferable that the floor material 1 is configured so that the actual hanging width W is 0.1 mm to 0.9 mm. By configuring in this way, the first real portion 13 and the second real portion 14 can be actually coupled without breaking the first real portion 13 and the second real portion 14 . Further, in a state in which the first real portion 13 and the second real portion 14 are actually coupled, the surface-side protruding portion 131 of the first real portion 13 fitted in the recess 143 of the second real portion 14 extends from the recess 143. You can keep it from coming off. If the hook margin W is increased, it becomes difficult to fit the surface-side protruding portion 131 of the first hook portion 13 into the concave portion 143 of the second hook portion 14. becomes easy to come off from the concave portion 143 of the second real portion 14 . Therefore, the actual engagement margin W is preferably 0.1 mm or more, more preferably 0.2 mm or more, and even more preferably 0.3 mm or more. Further, the actual engagement allowance W is preferably 0.9 mm or less, more preferably 0.8 mm or less, and even more preferably 0.7 mm or less.

Note that the surface-side convex portion 142 may not have the second upper surface inclined portion 145 . That is, as shown in FIG. 5 , the second tip portion 146 of the surface-side convex portion 142 may be configured to extend to the surface of the flooring 1 . FIG. 5 is a cross-sectional view of the flooring 1 showing another example of the surface-side protrusions 142. As shown in FIG. In this case, the groove of the flooring 1 is formed by the first upper surface slope portion 133 and the second tip portion 146 .

FIG. 6 is a diagram for explaining a method of constructing a new floor material 1C between two floor materials 1A and 1B. FIG. 6A is a diagram showing a state before construction, and FIG. 6B is a diagram showing a state after construction.

When installing a new flooring material 1C, while tilting the flooring material 1C, the back-side protrusion 141 of the second real part 14 of the flooring material 1C is inserted into the back-side notch part 132 of the first real part 13 of the flooring material 1A. put in. At this time, the surface-side projecting portion 131 of the first real portion 13 of the flooring 1C comes into contact with the surface-side projecting portion 142 of the second real portion 14 of the flooring 1B. In this state, by hitting the surface of the first real portion 13 of the flooring 1C with a tool with a cushioning material (for example, a rubber hammer) in the direction indicated by the arrow in FIG. , the flooring material 1C is bent momentarily, and the surface-side projecting part 131 of the flooring material 1C climbs over the surface-side projecting part 142 of the flooring material 1B and fits into the recessed part 143 of the flooring material 1B. Also, the back-side protrusion 141 of the flooring 1C enters the back-side notch 132 of the first real portion 13 of the flooring 1A, and the front-side protrusion 131 of the flooring 1A fits into the recess 143 of the flooring 1C. become. Thereby, as shown in FIG. 6(B), the flooring material 1C is fitted between the flooring material 1A and the flooring material 1B.

When the surface-side projecting portion 131 of the flooring material 1C climbs over the surface-side convex portion 142 of the flooring material 1B, the first tip portion 134 of the flooring material 1C and the second tip portion 146 of the flooring material 1B are positioned on the surface. Since they are vertical, they do not interfere with each other. Therefore, the tip portions of the surface-side protruding portion 131 of the flooring 1C and the front-side protruding portion 142 of the flooring 1B are not destroyed. In addition, as the length of each of the first tip portion 134 and the second tip portion 146 of the flooring 1 is increased, the strength is increased, so that breakage of the solid portion can be prevented. On the other hand, by shortening the length of each of the first tip portion 134 and the second tip portion 146 of the flooring 1, the interference portion can be reduced, and the flooring between the flooring 1A and the flooring 1B It becomes easy to fit 1C. Therefore, as described above, the length of each of the first tip portion 134 and the second tip portion 146 has a lower limit of 0.1 mm or more and an upper limit of 1.0 mm or less, preferably 0.9 mm or less, more preferably 0.9 mm or less. is 0.8 mm or less, more preferably 0.7 mm or less, more preferably 0.6 mm or less, and more preferably 0.5 mm or less.

Further, as shown in FIG. 6B, when the first real portion 13 and the second real portion 14 are actually connected, the surface-side protruding portion 131 of the first real portion 13 becomes the second real portion 14. It is in a state of being sandwiched between the back-side convex portion 141 and the front-side convex portion 142 . Therefore, it is possible to prevent the floor material 1 from warping such that the first real portion 13 is lifted from the second real portion 14 . Further, when the flooring material 1C is adhered with an adhesive, the movement of the flooring material 1C is suppressed by actual bonding with the adjacent flooring materials 1A and 1B. , weights, etc.) become unnecessary. Considering that the same part will be reapplied a number of times, the adhesive is preferably a modified silicone adhesive that does not easily damage the base during removal.

(How to replace some floor materials)
Next, a method for replacing a part of the floor material will be described. First, it is necessary to remove the extraction target from the existing floor. The method is not particularly limited, but for example, a cutting means such as a cutter is used to cut the floor material to be replaced. The suction cup for transportation is made to stick to the surface of the floor material to be replaced, and in that state, the suction cup for transportation is moved upward, thereby damaging other floor materials that have already been constructed starting from the cut part of the floor material to be replaced. It is possible to peel off only the floor material to be re-pasted without removing it.

Next, after removing the floor material to be re-pasted, floor residues such as adhesive remain on the top surface of the base material. Apply glue. The purpose of performing such surface treatment is to improve the adhesiveness of the new flooring material. In this way, a new flooring material is inserted and constructed by the method shown in FIG.

(Example)
A test was conducted to confirm that the flooring material of the present invention can be replaced without destroying the actual portion. In order to carry out the test, the length of the first tip portion 134 in the thickness direction of the flooring material 1 (hereinafter represented by the dimension L1) was 0.48 mm, and the length of the second tip portion 146 in the thickness direction of the flooring material 1 was 0.48 mm. Floor material A with a length (hereinafter represented by dimension L2) of 0.38 mm and an actual engagement margin W of 0.35 mm, and a flooring material A with a dimension L1 of 0.15 mm, a dimension L2 of 0.11 mm, and an actual engagement margin W was 0.71 mm, and a flooring material C was prepared with a dimension L1 of 0.40 mm, a dimension L2 of 0 mm, and an actual hanging allowance W of 0.60 mm. The total thickness of each floor material was 3.0 mm. A replacement test was carried out using these floor materials. At this time, ◯ was given when the real part was not destroyed, and x was given when the real part was destroyed. In addition, when the surface-side protruding portion 131 of the first real portion 13 did not come out of the recess 143 of the second real portion 14, ◯, Those that escaped from were evaluated as x. Table 1 shows the above results.

As shown in the floor material C in Table 1, unless the second end portion 146 of the second real portion 14 is perpendicular to the surface of the floor material 1, the real portion will be destroyed. Therefore, each of the first tip portion 134 of the first tang portion 13 and the second tip portion 146 of the second tang portion 14 is a surface perpendicular to the surface of the flooring 1, so that the actual The floor material can be replaced without destroying the part.

1, 1A, 1B, 1C: Floor material 10: Base material 11: Decorative material 12: Back material 13: First real part 14: Second real part 131: Front side protrusion 132: Back side notch 133: First Upper surface inclined portion 134 : First tip portion 141 : Back side convex portion 142 : Front surface side convex portion 143 : Concave portion 144 : Lower surface inclined portion 145 : Second upper surface inclined portion 146 : Second tip portion

Claims (10)

A flooring material extending in one direction,
In the cross section perpendicular to the one direction, when the real part provided at one end of the flooring material is the first real part and the real part provided at the other end of the flooring material is the second real part,
The first real part is
a surface-side protruding portion provided to protrude outward on the surface side of the one end;
a back side notch provided in a notch shape on the back side of the one end;
has
The surface-side protruding portion has a first upper surface inclined portion whose upper surface slopes outward toward the back surface, and a first tip portion perpendicular to the surface,
The second real part is
a back-surface-side protrusion provided to protrude outward on the back-surface side of the other end;
a surface-side convex portion provided to protrude outward on the surface side of the other end and forming a concave portion between itself and the back-side convex portion;
has
The surface-side protrusion has a second tip perpendicular to the surface,
The first real portion and the second real portion are actually connected by fitting the surface-side protruding portion into the recess of the adjacent floor material.
flooring. 2. The flooring material according to claim 1, wherein the surface-side convex portion has a lower surface inclined portion in which the lower surface side thereof is inclined toward the surface side toward the outside. The front-surface-side protrusion has a second upper-surface inclined portion, the upper surface of which slopes outward toward the back surface,
The flooring material according to claim 1 or 2. In the cross section, the lengths of the first tip portion and the second tip portion in the thickness direction of the flooring material are 0.1 mm or more,
The flooring material according to any one of claims 1 to 3. In a state where the first real part and the second real part are actually coupled,
In the cross section, the distance between the first tip and the second tip in a direction orthogonal to the thickness direction of the flooring is 0.1 mm or more and 0.9 mm or less.
The flooring material according to any one of claims 1 to 4. The total thickness of the floor material is 1.5 mm or more and 6.0 mm or less,
The flooring material according to any one of claims 1 to 5. Including decorative materials composed of woody decorations, resin sheets, or paper sheets,
The flooring material according to any one of claims 1 to 6. Including a backing material composed of a resin sheet, a moisture-proof sheet, or a wood sheet,
The flooring material according to any one of claims 1 to 7. Wood base material, resin molded base material, gypsum base material, mineral fiber base material, or a base material composed of a mixture thereof,
The flooring material according to any one of claims 1 to 8. A method for attaching a floor material according to any one of claims 1 to 9,
The first floor material and the second floor material are installed with a gap, and the first real part of the first floor material and the second real part of the second floor material face each other. , when attaching a third floor material between the first floor material and the second floor material,
applying an adhesive to a substrate between the first floor covering and the second floor covering;
The rear-side convex portion of the second real portion of the third floor material in an oblique state in which the second real portion of the third floor material is lower than the first real portion of the third floor material. a step of inserting into the back side notch portion of the first real portion of the first floor material;
The first real part side of the third floor material is pressed against the second real part side, and the surface-side protruding part of the first real part of the third floor material fitting into the recess of the second real part;
A method for attaching a flooring material.

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