JP6775123B2 - Floor material - Google Patents

Description

In the present invention, a ridge-shaped male fruit portion is provided on one side end portion, and a groove-shaped female fruit portion is provided on the other side end portion, and the floor material adjacent to the floor material and the side end portions are male and female. The present invention relates to a floor material having a structure that can be fitted.

This type of flooring material is nailed from the upper surface of the male real part (see, for example, Patent Document 1) and the upper surface of the lower protruding part below the female real part when applied to the floor base. (See, for example, Patent Document 2).

In the case of a floor material to be nailed from the upper surface of the male part, the burden of nailing is usually reduced by forming the floor material so that the upper surface position of the male part is lower. Further, the floor material to be nailed from the upper surface of the lower protruding portion on the female part side has a lighter burden of nailing because the upper surface of the lower protruding portion is lower than the upper surface of the male part.

JP-A-2009-52201 Japanese Unexamined Patent Publication No. 04-106264

However, when determining the height (thickness direction) position of each side end of the floor material, it is not only the ease of nailing during construction.

An issue to be noted is how to prevent the gaps from being generated at the joints on the surface side when joining the floor materials, or how to make the gaps inconspicuous. In particular, recently, the occurrence of gaps due to the drying shrinkage of floor heating has become remarkable, and a solution by simple means is desired.

In addition, one of the problems is to have a configuration that can prevent damage to the male part in the handling of the floor material such as during construction. Further, in the case where the lower protrusion of the female part is greatly projected to facilitate nailing on the female part side, it is possible to prevent damage to the lower protrusion part on the female part side as in the male part. It is also necessary to do.

In order to solve these various problems, it is necessary to define the mutual relationship of each dimension in the thickness direction in the male real part (female real part) and the notches (protruding parts) above and below it in a well-balanced manner. However, such proposals have not been made in Patent Documents 1 and 2 and conventional documents.

The present invention has been proposed in consideration of such circumstances, and an object of the present invention is to define the mutual relationship between the dimensions in the thickness direction at each portion of the side end portion having the actual portion. It is an object of the present invention to provide a flooring material that can solve various problems including reduction of the problem.

In order to achieve the above object, the flooring material of the present invention comprises a rectangular substrate in which a decorative material is laminated on the surface of a wooden base material, and has a ridge shape on one side end portion at at least one side end portion in one direction. In the flooring material to which the male and female parts of the above are provided and the groove-shaped female and female parts are provided on the other side end portion so that the male and female parts can be fitted to each other with the adjacent flooring material. An upper notch is formed above the part, and a lower notch is formed below the male part, and the wooden base material is nailed with its back surface in contact with the floor base. It is supposed to be fixed, the depth dimension of the upper notch from the floor material surface is made smaller than the thickness dimension of the male real part, and the thickness dimension of the male real part is made from the back surface of the floor material of the lower notch. Make the depth dimension of the lower notch from the back surface of the floor material smaller than the sum of the depth dimension of the upper notch from the floor material surface and the thickness dimension of the male real part. On the other hand, an upper protrusion corresponding to the upper notch is formed above the female body, and a lower protrusion corresponding to the lower notch is formed below the female body, and the upper notch and the upper protrusion are formed. A chamfer is formed at each corner on the floor surface side of the floor material, and the depth dimension of the upper notch from the floor material surface is the depth from the lower end of the chamfered portion excluding the thickness dimension of the chamfered portion. The depth dimension of the upper notch from the floor material surface is set to 2.0 mm or more and 3.2 mm or less, excluding the thickness dimension of the chamfered portion. It is a feature.

In the present invention, a glue pool portion formed by further digging may be formed in the groove bottom portion of the female fruit portion.

In the present invention, the lower protruding portion protrudes larger than the protruding dimension of the upper protruding portion from the groove bottom portion of the female body portion, while the lower notch portion is formed to a size that can accept the lower protruding portion. You may.

In the present invention, a step-down portion is formed on the upper surface of the lower protruding portion on the side end side side, and when the lower protruding portion is fitted with the lower notch portion of the floor material to be provided next to the lower protruding portion, it becomes a male part. A gap space may be formed above and below the lower protrusion.

In the present invention, the upper surface of the base portion side of the stepped-down portion of the downward protruding portion may be inclined downward toward the stepped-down portion side.

In the present invention, an overlay portion may be formed at the entrance corner of the lower notch portion with the male part, and when nailed from the upper surface of the base portion of the male part, the shaft portion of the nail is formed. It may be configured to pass through the overlay portion.

According to the flooring material of the present invention, since the mutual relationship of the dimensions in the thickness direction at each part of the side end portion having the real part (male part, female part) is defined, there is a problem of gap. It is possible to form a floor material that can solve various problems including reduction.

(A) is a vertical sectional view and a partially enlarged vertical sectional view of a floor material according to an embodiment of the present invention. (B) is an equation showing the mutual relationship of each dimension indicated by the reference numerals (A, B, C, X and Y) in (a). (C) is a vertical sectional view of another row of floor materials. (A) and (b) are vertical cross-sectional views of the main part showing the joining and fixing structure of the floor material. It is a vertical cross-sectional view of a main part which showed the other joining and fixing structure of the floor material shown in FIG. It is explanatory drawing of the floor material which concerns on other embodiment of this invention, (a) is a vertical sectional view, (b) is a schematic vertical sectional view which showed the joining and fixing structure of a floor material.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 3 are explanatory views of a floor material according to an embodiment of the present invention.
1 (a) is a vertical cross-sectional view and a partially enlarged vertical cross-sectional view of the floor material, and FIG. 1 (b) is a dimension shown by reference numerals (A, B, C, X and Y) in FIG. 1 (a). The formula showing the mutual relationship, FIG. 1C is a vertical cross-sectional view of the floor material showing another example in the same embodiment.
2 (a) and 2 (b) are vertical cross-sectional views of a main part showing a joining and fixing structure of floor materials. FIG. 3 is a vertical cross-sectional view of a main part showing another joining and fixing structure of the floor material shown in FIG.

As shown in FIG. 1A, the floor material 1 used in the present embodiment is made of, for example, a rectangular substrate in which a decorative material 1b is laminated on the surface of a wood base material 1a. As the wood base material 1a, various wood materials such as plywood, MDF, and particle board are used. The floor material 1 can also be applied as a floor heating panel.

The floor material 1 is provided with a ridge-shaped male fruit portion 10 at one side end portion at both side ends in at least one direction, and a groove-shaped female fruit portion 20 at the other side end portion. The floor material 1 adjacent to the above and the side ends can be male-female-fitted.
An upper notch 11 is formed above the male part 10 of the floor material 1, and a lower notch 12 is formed below the male part 10.

The dimensional relationship of each part is as shown in the relational expression shown in FIG. 1 (b).
That is, the depth dimension A from the floor material surface 1s of the upper notch portion 11 is smaller than the thickness dimension B of the male real portion 10. Further, the thickness dimension B of the male body portion 10 is smaller than the depth dimension C of the lower notch portion 12 from the back surface 1t of the floor material. Further, the depth dimension C from the floor material back surface 1t of the lower notch portion 12 is larger than the total value of the depth dimension A from the floor material surface 1s of the upper notch portion 11 and the thickness dimension B of the male real portion 10. small.
The depth dimension A from the floor material surface 1s of the upper notch portion 11 on the male real portion 10 side corresponds to the depth from the lower end of the chamfered portion 10a as shown in the figure.

On the other hand, an upper protrusion 21 corresponding to the upper notch 11 is formed above the female body 20, and a lower protrusion 22 corresponding to the lower notch 12 is formed below the female body 20.

Regarding the lateral direction (horizontal direction in FIG. 1) of the floor material 1, the protruding dimension X from the groove bottom 20b of the female body portion 20 of the lower protruding portion 22 on the female fruit portion 20 side is the upper protruding portion 21. It is made larger than the protrusion dimension Y from the groove bottom portion 20b of the female real portion 20 of
Although the dimensions are slightly different on the male part 10 side, the lateral notch size X'of the lower notch portion 12 is larger than the notch size Y'of the upper notch portion 11 corresponding to the female part 20 side. ..

By making each part of the floor material 1 have the above-mentioned dimensional relationship, the following effects can be obtained.
First, by projecting the lower protruding portion 22 on the female real portion 20 side larger than the upper protruding portion 21, it becomes easier to nail the floor material 1 on the female real portion 20 side when fixing the floor material 1 to the floor base 2. be able to. Further, since the structure is such that the nails are nailed to the lower protrusion 22 which is placed in contact with the floor base 2, a nailing error such as the nail 8 passing through the hollow portion cannot occur. Thus, the nailing from the female part 20 side is not so limited in the driving direction of the nail 8 as compared with the general nailing on the male part 10 side.
As will be described later, the flooring material 1 is not configured to be nailed only on the female part 20 side, and can be nailed to either the male part 10 or the female part 20.

Further, considering the ease of nailing on the female body portion 20, it is desirable to project the lower protruding portion 22 greatly as shown in FIG. 1, but the lower protruding portion 22 protrudes from the upper protruding portion 21. It may be the same as or smaller than the degree. This is because, as shown in FIG. 2, if the nail 8 is driven diagonally, the nail can be driven without the lower protrusion 22 being greatly projected.
It should be noted that the nail 8 for fixing the floor material 1 includes staples.

The following effects can be achieved depending on the dimensional relationship (A <B <C, C <A + B) in the thickness direction of each part.
By making the depth dimension A from the floor material surface 1s of the upper notch portion 11 smaller than any dimension in the thickness direction of other parts, the depth of the upper notch portion 11 from the floor material surface 1s is further increased. Can be shallow. Therefore, even if there is a gap between the floor material 1 and the floor material 1 adjacent to the floor base 2, the gap is shallow and hardly noticeable.
In order to make the gaps inconspicuous, the upper notch portion 11, the upper notch portion 21, each edge (end face) of the upper protruding portion 21, and the upper surface of the male part 10 are provided with the same color or a similar color as the decorative material 1b. It is desirable to keep it.

Further, as described above, the depth dimension A of the upper notch portion 11 from the floor material surface 1s is a dimension excluding the thickness dimension of the chamfered portion 10a. The reason why the thickness dimension of the chamfered portion 10a is not taken into consideration is that the V-shaped cross-section of the chamfered portions 10a and 20a formed by joining the two floor materials 1 and 1 cannot be said to be a gap. That's why.
Therefore, even if the dimensions of the chamfered portions 10a and 20a in the thickness direction are increased by using the thick decorative material 1b, the above effect can be obtained if the above relational expression (A <B <C) is used.

With respect to the gap, the same effect can be obtained by attaching a decorative sheet 1c as shown in FIG. 1C instead of the decorative material 1b on the floor material surface 1s side.
If the decorative sheet 1c is attached so as to be wrapped around the end face as in the example of FIG. 1C, even if a gap is formed, the surface of the decorative sheet 1c can be seen from the gap. Yes, the wood edge (end face) is not seen, and there is no risk of spoiling the aesthetics.

In many cases, the gap is generated when the floor material 1 dries and shrinks after the floor material 1 is applied on the floor base 2. Such a gap is a slight gap, and by making each part have the above-mentioned dimensional relationship, the conspicuousness of the gap can be reduced and the appearance can be prevented from being deteriorated.

In addition, it is desirable to perform the construction so as not to generate a gap on the floor material surface 1s side as much as possible. Therefore, it is desirable that the female part 20 is formed slightly deeper than the protruding dimension of the male part 10 and the lower notch portion 12 is formed slightly deeper than the protruding dimension of the lower protruding portion 22.
That is, in a state where the floor materials 1 are joined to each other, the end faces of the upper notch 11 and the upper protrusion 21 are in contact with each other, and then between the end faces of the male part 10 and the female part 20 and the lower notch 12. It is desirable that gap spaces S and S are formed between the end faces of the lower protrusion 22.

Further, by making the depth dimension C from the floor material back surface 1t of the lower notch portion 12 larger than any other dimension in the thickness direction, the lower protrusion 22 corresponding to the lower notch portion 12 can be made thicker. .. Therefore, the lower protrusion 22 can be formed firmly, and the lower protrusion 22 can be prevented from breaking. Further, by keeping the male part 10 away from the back surface 1t of the floor material on the male part 10 side, it is possible to prevent the male part 10 from being damaged due to contact with the floor base 2 during construction.

Further, the depth dimension C from the floor material back surface 1t of the lower notch portion 12 is smaller than the total value of the depth dimension A from the floor material surface 1s of the upper notch portion 11 and the thickness dimension B of the male real portion 10. As a result, the lower protrusion 22 on the corresponding female body 20 side can be prevented from becoming too thick. Therefore, when nailing to the female body portion 20 side, the lower protruding portion 22 is not too thick, so that the burden of nailing is small and the work becomes easy.

In this way, forming the floor material 1 in the dimensional relationship of the above relational expression (A <B <C, C <A + B) is made by the present inventor in order to achieve the various effects in a well-balanced manner. It was obtained as the optimum by many of these trials.

Next, further morphological features of the floor material 1 will be described. It should be noted that the two morphological features described below are for effectively utilizing the adhesive 5 used when joining the floor materials 1 to each other, and it is desirable that the floor materials 1 are formed as such.

First, a groove-shaped glue pool 23 having a triangular cross section is formed in the groove bottom 20b at the back of the female body 20. In the glue collecting portion 23 shown as an example, the surface of the groove bottom 23a of the glue collecting portion 23 is inclined downward toward the back surface 1t side of the floor material. Further, as shown in the figure, a groove wall 23b having a surface parallel to the floor material surface 1s is formed on the floor material surface 1s side of the glue pool portion 23. The glue pool 23 is not limited to such a shape, and may have a concave groove shape of various other shapes.

In this way, since the glue pool portion 23 is formed in the groove bottom portion 20b of the female fruit portion 20, when the floor materials 1 and 1 are joined to each other, the adhesive 5 is formed by the male fruit portion 10 of the mating floor material 1. Is pushed toward the bottom of the groove 20b, a part of the adhesive 5 is housed in the glue pool 23, and only a part of the other adhesive 5 goes upward. As described above, since the floor material 1 has a structure in which the excess adhesive 5 does not easily move upward, it is possible to prevent the excess adhesive 5 from squeezing out from between the end faces to the floor material surface 1s.
Further, from the above-mentioned relational expressions (A <B <C, C <A + B), the groove width dimension (thickness direction dimension) of the female body portion 20 can be increased to some extent, so that the adhesive 5 is also on the surface side (thickness direction). It can be difficult to face upward), and the capacity of the glue pool 23 can be increased.

Further, a step drop portion 22a is formed on the upper surface of the lower protrusion 22 on the side end side, and when the lower protrusion 22 is fitted with the lower notch 12 when the floor materials 1 and 1 are joined to each other. In addition, a gap space S is formed above and below the male body portion 10 and the downward protruding portion 22. The base of the lower protrusion 22 is provided with a support 22b that supports the male body 10 from below.

As shown in FIG. 2, the thickness dimension of the gap space S by the stepped-down portion 22a may be such that the head 8a of the nail 8 can be accommodated when nailed. Further, if there is such a gap space S, the excess adhesive 5 can be accommodated.
Although the amount of the adhesive 5 accommodated in the gap space S is large, since it is arranged between the floor materials 1 and 1, it greatly contributes to the bonding between the floor materials 1 and 1. ..

Further, in the main floor material 1, a built-up portion 12a is formed at a corner portion of the lower notch portion 12 with the male real portion 10. As shown in FIG. 3, the built-up portion 12a is nailed 8 diagonally from the upper surface of the base portion of the male body portion 10 of the floor material 1 (the floor material on the left side in FIG. 3) previously installed on the floor base 2. This is a portion through which the shaft portion of the nail 8 is passed.
Since the overlay portion 12a is formed at the entrance corner of the lower notch portion 12 in this way, the passing region of the shaft portion of the nail 8 can be increased, and a nailing error on the male real portion 10 side can be made. Can be reduced.

As specific dimensions of each part shown above, for example, the following example can be assumed.
Depth dimension A from the floor material surface 1s of the upper notch portion 11 + dimension of the chamfered portion 10a: 2.5 mm
(The depth dimension A is preferably 2.0 mm or more and 3.2 mm or less.)
Thickness dimension B of male part 10: 4.2 mm
Depth dimension C: 5.3 mm from the back surface 1t of the floor material of the lower notch portion 12
Thickness dimension of the upper protrusion 21: 2.4 mm
Groove width dimension of female part 20: 4.4 mm
Thickness dimension of lower protrusion 22 (support portion 22b side): 5.2 mm
Thickness dimension of lower protrusion 22 (step drop 22a side): 4.5 mm
Projection dimension Y: 4.5 mm from the groove bottom 20b of the female body portion 20 of the upper protrusion 21
Projection dimension X: 9.0 mm from the groove bottom 20b of the female body portion 20 of the lower protrusion 22
Lateral notch size of upper notch 11 Y': 4.0 mm
Lateral notch dimension X': 9.5 mm of the lower notch portion 12

The floor material 1 thus formed is joined to the adjacent floor material 1 on the floor base 2 by the procedure shown in FIGS. 2A and 2B. In FIG. 2, among the floor materials 1 and 1, the floor material 1 installed first is referred to as the front floor material 1X, and the floor material 1 installed adjacent to the floor material 1 is referred to as the rear floor material 1Y.
The procedure shown in FIGS. 2A and 2B is an example of nailing to the female real part 20 side. That is, the procedure shown in these figures is a procedure in the case of joining the female real part 20 of the existing front floor material 1X so as to fit the male real part 10 of the newly installed rear floor material 1Y. In this case, as for the floor material 1 for the end portion to be installed near the wall or the like, it is naturally necessary to arrange the side end portion on the male fruit portion 20 side near the wall or the like. It is desirable to use it.

The front floor material 1X is fixed to the floor base 2 with the adhesive 5 and the nail 8. The nail 8 is struck from above the stepped-down portion 22a of the lower protruding portion 22 on the female real portion 20 side. It is desirable to strike diagonally from the viewpoint of fixing strength.

In order to install the rear floor material 1Y, after nailing (may be in front), the adhesive 5 is injected into the upper surface of the lower protrusion 22 mainly in the inner part of the female body portion 20 of the front floor material 1X. Further, it is desirable to apply the adhesive 5 on the floor base 2 on which the rear floor material 1Y is installed.

The male part 10 of the rear floor material 1Y is fitted to the female part 20 of the front floor material 1X, and the rear floor material 1Y is installed on the floor base 2 and temporarily fixed.

In a state where the side ends of the floor materials 1 and 1 are male-female fitted to each other, the adhesive 5 spreads not only to the portion where the floor materials 1 and 1 are in close contact with each other but also to various gap spaces S and S. That is, the adhesive 5 is formed by the glue pool 23, the gap space S between the end faces of the male part 10 and the female part 20, the gap space S of the stepped-down portion 22a, and the lower protrusion 22 and the lower notch 12. It spreads over the gap space S between the end faces. Then, the adhesive 5 stays in those portions and hardens to bond the floor materials 1, 1 to each other. The injected adhesive 5 includes a surplus adhesive 5, but most of the adhesive 5 stays between the floor materials 1 and 1, so that it contributes to the bonding between the floor materials 1 and 1. Become.
Further, the downwardly directed adhesive 5 also reaches the chamfered portion on the back surface side of the floor material 1, enters between the floor material back surface 1t and the floor base 2, and has a bonding effect on the floor base 2. Demonstrate.

In this way, the adhesive 5 for joining the two floor materials 1 and 1 accumulates in various spaces such as the glue pool 23, so that it is possible to prevent the adhesive 5 from protruding from the end faces to the floor material surface 1s. it can. Further, since the adhesive 5 is easily distributed to the 1t side of the back surface of the floor material, the adhesive 5 can be used efficiently.

Next, other embodiments of the present invention will be described.
4A and 4B are explanatory views of a floor material according to the present embodiment, FIG. 4A is a vertical cross-sectional view, and FIG. 4B is a schematic vertical cross-sectional view showing a joining and fixing structure of the flooring material. is there.

Compared to the floor material 1 shown in FIG. 1, this floor material 1 has no glue pooling portion 23, and the upper surface of the support portion 22b on the base side of the lower protruding portion 22 is stepped down from the stepped down portion 22a. It is different that the descent is inclined toward the portion 22a side. Since the other components are the same as those in FIG. 1, the same reference numerals are given to the respective figures in FIG. 4, and the description thereof will be omitted.

Further, the dimensional relationship is the same as that of the floor material 1 shown in FIG. Naturally, the points that various effects can be obtained due to the dimensional relationship are the same as those in FIG. 1, and the description thereof will be omitted.

According to the fact that the upper surface of the support portion 22b of the lower projecting portion 22 is inclined downward toward the step-down portion 22a side in the floor material 1, the injected adhesive 5 for joining is poured downward. It can be made easier. Although the glue pool 23 (see FIG. 1) is not formed on the floor material 1, the glue pool 23 is provided to prevent the adhesive 5 from moving upward in addition to the downward guiding action. It may be a configuration having an action.

1 Floor material 1s Floor material surface 1t Floor material back surface 1X Front floor material 1Y Rear floor material 2 Floor base 5 Adhesive 8 Nail 8a Head 10 Male part 10a Chamfered part 11 Upper notch 12 Lower notch 12a Overlay 20 Female part 20b Groove bottom 21 Upper protrusion 22 Lower protrusion 22a Step drop 22b Support 23 Glue pool A Depth dimension of upper notch from floor material surface B Thickness of male part C Lower notch Depth dimension from the back surface of the floor material X Projection dimension of the female part of the lower protrusion from the groove bottom Y Projection dimension of the female part of the upper protrusion from the groove bottom

Claims (6)

It consists of a rectangular substrate with a decorative material laminated on the surface of a wood substrate, with a ridge-shaped male part at one side end at at least one side end and a groove shape at the other side end. In the floor material which is provided with the female body part of the above and has a structure in which the side end portions can be male-female fitted to each other.
An upper notch is formed above the male part, and a lower notch is formed below the male part.
The wood base material is nailed and fixed with its back surface in contact with the floor base.
The depth dimension of the upper notch from the floor material surface is made smaller than the thickness dimension of the male real part, and the thickness dimension of the male real part is made from the depth dimension of the lower notch from the back surface of the floor material. The depth dimension of the lower notch from the back surface of the floor material is made smaller than the sum of the depth dimension of the upper notch from the floor material surface and the thickness dimension of the male part.
An upper protrusion corresponding to the upper notch is formed above the female body, and a lower protrusion corresponding to the lower notch is formed below the female body.
A chamfered portion is formed in each of the corner portion of the upper cutout portion and the upper protruding portion on the floor material surface side, and the depth dimension of the upper cutout portion from the floor material surface is the thickness dimension of the chamfered portion. It corresponds to the depth from the lower end of the chamfered portion excluding the above, and the depth dimension of the upper notch portion from the floor material surface is 2.0 mm excluding the thickness dimension of the chamfered portion. As described above, the floor material is characterized in that it is set to 3.2 mm or less.
In claim 1,
A flooring material characterized in that a glue pool formed by further digging is formed in the groove bottom portion of the female fruit portion. In claim 1 or 2,
The lower protruding portion protrudes larger than the protruding dimension of the upper protruding portion from the groove bottom portion of the female body portion, while the lower notch portion is formed to a size that can accept the lower protruding portion. Flooring material characterized by. In claim 3,
A stepped-down portion is formed on the upper surface of the lower protruding portion on the side end side, and when the lower protruding portion is fitted with the lower notch portion of the floor material to be provided adjacently, the male part and the lower portion are formed. A flooring material characterized in that a gap space is formed above and below the protruding portion. In claim 4,
A flooring material characterized in that the upper surface of the lower protruding portion on the base side of the stepped down portion is inclined downward toward the stepped down portion side. In any one of claims 3 to 5,
An overlay portion is formed in the inner corner portion of the lower notch portion with the male part.
A flooring material having a structure in which a shaft portion of a nail passes through the overlay portion when nailed from the upper surface of the base portion of the male body portion.

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