JP2018048549A - Floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor material capable of solving various problems including how to reduce a gap by regulating mutual relationship of dimensions in a thickness direction in each part at a side end part having a tongue part.SOLUTION: An upper notch part 11 is formed above a male tongue part 10, and a lower notch part 12 is formed below the male tongue part 10. A depth dimension A of the upper notch part 11 from a floor material surface 1s is made to be smaller than a thickness dimension B of the male tongue part 10, the thickness dimension B of the male tongue part 10 is made to be smaller than a depth dimension C of the lower notch part 12 from a floor material rear surface 1t, and the depth dimension C of the lower notch part 12 from the floor material rear surface 1t is made to be smaller than a total value of the depth dimension A of the upper notch part 11 from the floor material surface 1s and the thickness dimension B of the male tongue part 10. On the other hand, an upper protrusion 21 corresponding to the upper notch part 11 is formed above a female tongue part 20, and a lower protrusion 22 corresponding to the lower notch part 12 is formed below the female tongue part 20.SELECTED DRAWING: Figure 1

Description

  The present invention provides a male and female part in the shape of a ridge at one side end and a female part in the form of a groove on the other side end, and the floor material provided next to the male and female between the side ends. The present invention relates to a flooring that can be fitted.

  In this type of flooring material, nails are nailed from the upper surface of the male real part (see, for example, Patent Document 1) and the upper surface of the lower projecting part on the lower side of the female real part during construction on the floor base. There exists a thing (for example, refer patent document 2).

  In the case of flooring nailing from the upper surface of the male part, the burden of nailing is usually reduced by forming the upper part of the male part so as to be lower. Further, the flooring material nailed from the upper surface of the lower projecting portion on the female real part side is lightly placed on the floor because the upper surface of the lower projecting portion is lower than the upper surface of the male real portion.

JP 2009-52201 A Japanese Patent Laid-Open No. 04-106264

  However, the point to be considered in determining the height (in the thickness direction) position of each part of the side edge of the flooring is not only the ease of nailing during construction.

  Problems to be noted are how to prevent generation of gaps at the joints on the surface side in bonding between floor materials, or how to make the gaps inconspicuous. In particular, recently, the generation of gaps due to drying shrinkage of floor heating has become remarkable, and a solution by simple means is desired.

  In addition, it is one of the problems to have a configuration that can prevent the male part from being damaged in the handling of floor materials during construction. Furthermore, in order to facilitate nailing on the female real part side, in the case where the lower protruding part of the female real part is greatly protruded, it is possible to prevent the lower protruding part on the female real part side from being damaged, like the male real part. It is also necessary to do.

  In order to solve such various problems, it is necessary to regulate the mutual relation between the dimensions in the thickness direction in the male real part (female real part) and the upper and lower cutouts (projections). However, such proposals are not made in Patent Documents 1 and 2 and conventional documents.

  The present invention has been proposed in view of such circumstances, and its purpose is to define the mutual relationship between the dimensions in the thickness direction of each part of the side end part having the real part. An object of the present invention is to provide a flooring that can solve various problems including the reduction of the above problems.

  In order to achieve the above object, the flooring of the present invention is provided with a protruding male part at one side end in at least one side end part in one direction, and a groove-like female part at the other side end part. In the floor material that is configured so that the adjacent floor material can be fitted with the male and female sides, the upper cutout is formed above the male part and below the male part. Has a lower notch, the depth of the upper notch from the floor material surface is made smaller than the thickness of the male part, and the thickness of the male part is reduced to the floor of the lower notch. The depth dimension from the back surface of the floor material of the lower notch is smaller than the depth dimension from the back surface of the material, and the sum of the depth dimension from the floor material surface of the upper notch and the thickness of the male part On the other hand, an upper protrusion corresponding to the upper notch is formed above the female real part, and a lower protrusion corresponding to the lower notch is formed below the female real part. Further, a chamfered portion is formed in each corner portion on the floor material surface side of the upper protruding portion, and the depth dimension from the floor material surface of the upper notch portion is 2.0 mm excluding the thickness dimension in the chamfered portion. As described above, it is set to 3.2 mm or less.

  In this invention, it is good also as a structure by which the glue reservoir part dug further was formed in the groove bottom part of a female real part.

  In the present invention, the lower protruding portion protrudes larger than the protruding size of the upper protruding portion from the groove bottom portion of the female real portion, while the lower notch portion is formed to have a size capable of receiving the lower protruding portion. May be.

  In the present invention, a stepped portion is formed on the upper surface on the side end portion side of the lower projecting portion, and when the lower projecting portion is fitted with the lower notch portion of the adjacent floor material, It is good also as a structure by which clearance gap space is formed between the upper and lower sides with a lower protrusion part.

  In this invention, it is good also as a structure which the upper surface by the side of the base part rather than the step-down part of a lower protrusion part descend | falls and inclined toward the step-down part side.

  In the present invention, a built-up portion may be formed at the corner of the lower notch with the male part, and when the nail is nailed from the upper surface of the base part of the male part, the shaft part of the nail You may make it the structure which passes a building-up part.

  According to the flooring of the present invention, since the mutual relation of the dimension in the thickness direction in each part of the side end portion having the real part (male real part, female real part) is defined, A flooring that can solve various problems including reduction can be formed.

(A) is the longitudinal cross-sectional view and partially expanded longitudinal cross-sectional view of the flooring which concern on one Embodiment of this invention. (B) is an equation showing the mutual relationship between the dimensions indicated by the symbols (A, B, C, X and Y) in (a). (C) is the longitudinal cross-sectional view of the other row of flooring. (A), (b) is the principal part longitudinal cross-sectional view which showed the joining and fixation structure of the flooring. It is the principal part longitudinal cross-sectional view which showed the other joining and fixing structure of the flooring shown in FIG. It is explanatory drawing of the flooring which concerns on other embodiment of this invention, (a) is a longitudinal cross-sectional view, (b) is a general | schematic principal part longitudinal cross-sectional view which showed the joining and fixing structure of a flooring.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

1-3 is explanatory drawing of the flooring which concerns on one Embodiment of this invention.
1 (a) is a longitudinal sectional view and a partially enlarged longitudinal sectional view of a flooring, and FIG. 1 (b) is a diagram of each dimension indicated by reference numerals (A, B, C, X and Y) in FIG. 1 (a). An expression showing the mutual relationship, FIG. 1C is a longitudinal sectional view of a flooring material showing another example in the embodiment.
2 (a) and 2 (b) are longitudinal sectional views of the main part showing the joining and fixing structure of flooring materials. FIG. 3 is a longitudinal sectional view of a main part showing another joining and fixing structure of the flooring shown in FIG.

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

The flooring 1 is provided with a ridge-shaped male solid part 10 at one side end at at least one side end in one direction, and a groove-shaped female real part 20 at the other side end. It is the structure which can carry out male-female fitting between the flooring 1 adjoined on the upper side, and side edge parts.
An upper notch 11 is formed above the male part 10 of the flooring 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.
That is, the depth dimension A from the floor material surface 1 s of the upper notch 11 is smaller than the thickness dimension B of the male solid part 10. Moreover, the thickness dimension B of the male part 10 is smaller than the depth dimension C from the floor material back surface 1 t of the lower notch 12. Furthermore, the depth dimension C from the floor material back surface 1 t of the lower notch 12 is greater than the sum of the depth dimension A from the floor material surface 1 s of the upper notch 11 and the thickness dimension B of the male solid part 10. small.
In addition, the depth dimension A from the flooring surface 1s of the upper notch part 11 side of the male part 10 side respond | corresponds to the depth from the lower end of the chamfering part 10a like the example of a figure.

  On the other hand, an upper protruding portion 21 corresponding to the upper cutout portion 11 is formed above the female real portion 20, and a lower protruding portion 22 corresponding to the lower cutout portion 12 is formed below the female real portion 20.

Further, regarding the dimension in the horizontal direction of the flooring 1 (left and right direction in FIG. 1), the protruding dimension X from the groove bottom portion 20 b of the female real part 20 of the lower protruding part 22 on the female real part 20 side is the upper protruding part 21. The protruding dimension Y of the female real part 20 from the groove bottom part 20b is made larger.
Although the dimensions are slightly different on the male part 10 side, the horizontal notch dimension X ′ of the lower notch part 12 is made larger than the notch dimension Y ′ of the upper notch part 11 corresponding to the female part 20 side. .

By making each part of the flooring 1 have the dimensional relationship as described above, the following effects can be obtained.
First, by making the lower protrusion 22 on the female real part 20 side protrude larger than the upper protrusion 21, it is easier to nail on the female real part 20 side when the flooring 1 is fixed to the floor base 2. be able to. Moreover, since it is the structure which nails to the lower protrusion part 22 made to contact and mount on the floor base 2, the driving | operation mistakes, such as the nail 8 passing a cavity part, cannot occur. Thus, the nail driving from the female real part 20 side is less limited in the driving direction of the nail 8 than the general nail driving at the male real part 10 side.
As will be described later, this flooring 1 is not configured to be nailed only on the female real part 20 side, but can be nailed on either the male real part 10 or the female real part 20.

Further, considering the ease of nailing on the female real part 20 side, it is desirable to make the lower protrusion 22 protrude largely as shown in FIG. 1, but the lower protrusion 22 protrudes from the upper protrusion 21. It may be the same or smaller than the degree. This is because, as shown in FIG. 2, if the nail 8 is struck diagonally, the nail can be struck even if the lower projecting portion 22 does not project greatly.
Note that the nails 8 for fixing the flooring 1 include staples.

Depending on the dimensional relationship in the thickness direction of each part (A <B <C, C <A + B), the following effects can be obtained.
By making the depth dimension A from the floor material surface 1s of the upper notch part 11 smaller than any dimension in the thickness direction of other parts, the depth from the floor material surface 1s of the upper notch part 11 is further increased. Can be shallow. For this reason, even if a gap is formed between the floor material 1 adjacent on the floor base 2 and the gap is shallow, the gap is hardly noticeable.
In order not to make the gap conspicuous, the upper cutout portion 11 that is in a butted state, each fore edge (end surface) of the upper protrusion portion 21, and the upper surface of the male solid portion 10 are given the same or 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 11 from the floor material surface 1s is a dimension excluding the thickness of the chamfered part 10a. The reason why the thickness dimension of the chamfered portion 10a was not taken into consideration was that the chamfered portions 10a and 20a formed by joining the two flooring materials 1 and 1 could not be said to have a section of a V-shaped surface. That's why.
Therefore, even if the thickness direction dimension of the chamfered portions 10a and 20a is increased by using the thicker decorative material 1b, the above-described effect can be obtained as long as the relational expression (A <B <C) is satisfied.

The same effect can be achieved with respect to the gaps even when a decorative sheet 1c as shown in FIG. 1C is attached to the floor surface 1s side instead of the decorative material 1b.
If the decorative sheet 1c is attached so as to be wound 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 woody edge (end face) is not peeped, and there is no risk of losing aesthetics.

  In many cases, the gap is generated when the floor material 1 is dried and contracted after the floor material 1 is applied to the floor base 2. Such gaps are slight gaps, and the conspicuousness of the gaps can be reduced and the appearance can be prevented from being deteriorated by making each part have the dimensional relationship as described above.

In addition, it is desirable to perform 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 real part 20 is formed slightly deeper than the projecting dimension of the male real part 10 and the lower notch part 12 is formed slightly deeper than the projecting dimension of the lower projecting part 22.
That is, with the floor materials 1 joined together, the end surfaces of the upper notch portion 11 and the upper protruding portion 21 are in contact with each other, and between the end surfaces of the male real portion 10 and the female real portion 20 and the lower notch portion 12. It is desirable that clearance spaces S and S be formed between the end surfaces of the lower protrusion 22.

  Furthermore, by making the depth dimension C from the floor material back surface 1t of the lower notch portion 12 larger than any of the other portions 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 being broken. Furthermore, on the male part 10 side, the male part 10 can be prevented from being damaged due to contact with the floor base 2 during construction by keeping the male part 10 away from the floor material back surface 1t.

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

  Thus, forming the flooring 1 in the dimensional relationship of the above relational expressions (A <B <C, C <A + B) is performed by the present inventor in order to achieve the various effects described above in a well-balanced manner. It was obtained as the optimum by many trials.

  Next, further geometrical features of the flooring 1 will be described. In addition, the two shape characteristics described below are for effectively using the adhesive 5 used when the flooring materials 1 are joined to each other, and are desirably formed as such.

  First, on the groove bottom 20b at the back of the female real part 20, a groove-shaped paste reservoir 23 having a triangular cross section is formed. The glue reservoir 23 shown as an example is one in which the surface of the groove bottom 23a of the glue reservoir 23 is inclined downward toward the floor material rear surface 1t side. 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 reservoir 23. The glue reservoir 23 is not limited to such a shape, and may have other various groove shapes.

Thus, since the glue pool part 23 is formed in the groove bottom part 20b of the female real part 20, the adhesive 5 is used by the male real part 10 of the mating flooring 1 when the flooring 1 and 1 are joined together. Is pushed into the groove bottom 20b side, a part of the adhesive 5 is accommodated in the glue reservoir 23 and only the other part of the adhesive 5 is directed upward. Thus, since this floor material 1 has a structure in which the surplus adhesive 5 is difficult to move upward, it is possible to prevent the surplus adhesive 5 from protruding from between the end surfaces to the floor material surface 1s.
In addition, from the above relational expressions (A <B <C, C <A + B), the groove width dimension (dimension in the thickness direction) of the female real part 20 can be increased to some extent. It is difficult to face upward) and the capacity of the glue reservoir 23 can be increased.

  Furthermore, a stepped portion 22 a is formed on the upper surface of the lower protruding portion 22 on the side end portion side, and when the lower protruding portion 22 is fitted to the lower notch portion 12 when the floor materials 1 and 1 are joined to each other. In addition, a gap space S is formed between the upper and lower portions of the male part 10 and the lower protrusion 22. Note that a support portion 22 b that supports the male portion 10 from below is provided at the base of the lower protrusion 22.

As shown in FIG. 2, the thickness dimension of the gap space S by the stepped portion 22 a only needs to be large enough to accommodate the head 8 a of the nail 8 when nailing. In addition, if there is such a gap space S, it is possible to accommodate excess adhesive 5.
In addition, although the amount of the adhesive 5 accommodated in the gap space S is increased, the adhesive 5 is disposed between the flooring materials 1 and 1, and thus greatly contributes to the coupling between the flooring materials 1 and 1. .

Further, the flooring 1 is formed with a built-up portion 12 a at a corner of the lower notch 12 with the male part 10. As shown in FIG. 3, the build-up portion 12 a obliquely strikes the nail 8 from the upper surface of the base of the male part 10 of the floor material 1 (left floor material in FIG. 3) previously installed on the floor base 2. In this case, it is a portion through which the shaft portion of the nail 8 passes.
Since the built-up portion 12a is formed at the corner of the lower notch 12 as described above, the passing area of the shaft portion of the nail 8 can be increased, and a nail driving mistake on the male real portion 10 side can be achieved. Can be reduced.

As specific dimensions of the respective parts described above, for example, the following examples can be assumed.
Depth dimension A + chamfered part 10a from floor material surface 1s of upper notch part 11: 2.5 mm
(The depth dimension A is preferably 2.0 mm or more and 3.2 mm or less.)
Thickness B of the male part 10: 4.2 mm
Depth dimension C of lower notch 12 from floor material back surface 1t: 5.3 mm
Thickness dimension of upper protrusion 21: 2.4 mm
Groove width dimension of the female real part 20: 4.4 mm
Thickness dimension of lower protrusion 22 (support 22b side): 5.2 mm
Thickness dimension of the lower protrusion 22 (stepped portion 22a side): 4.5 mm
Projection dimension Y from the bottom 20b of the female part 20 of the upper projection 21: 4.5 mm
Projection dimension X from the groove bottom part 20b of the female real part 20 of the lower projection part 22: 9.0 mm
Notch dimension Y ′ in the horizontal direction of the upper notch 11: 4.0 mm
Notch dimension X ′ in the horizontal direction of the lower notch 12: 9.5 mm

The floor material 1 formed in this way is joined on the floor material 1 and the floor base 2 that are provided adjacent to each other by the procedure shown in FIGS. In FIG. 2, the floor material 1 installed first among the floor materials 1 and 1 is referred to as a front floor material 1X, and the floor material 1 installed adjacent thereto is referred to as a 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 drawings is a procedure in the case of joining so that the male part 10 of the new rear floor material 1Y is fitted to the female part 20 of the existing front floor material 1X. In this case, the floor material 1 for the end portion installed near the wall or the like naturally needs to be arranged with the side end portion on the side of the male portion 20 on the wall side or the like. It is desirable to use it.

  The front floor material 1 </ b> X is fixed to the floor base 2 with an adhesive 5 and a nail 8. The nail 8 is struck from above the stepped portion 22a of the lower projecting portion 22 on the female real part 20 side. In addition, it is desirable from the viewpoint of fixing strength to strike diagonally.

  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 at the back of the female real part 20 of the front floor material 1X. Moreover, 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 both floor materials 1 and 1 are fitted to each other, the adhesive 5 spreads to various gap spaces S and S in addition to the portion where the floor materials 1 and 1 are in close contact with each other. That is, the adhesive 5 includes the adhesive pool portion 23, the gap space S between the end faces of the male real portion 10 and the female real portion 20, the gap space S of the stepped portion 22a, and the lower protrusion 22 and the lower notch portion 12. It reaches the gap space S between the end faces. And the adhesive agent 5 stays in those parts, hardens | cures, and couple | bonds the flooring materials 1 and 1. The injected adhesive 5 includes an excess of adhesive 5, but most of the adhesive 5 stays between the flooring materials 1 and 1, which contributes to the bonding between the flooring materials 1 and 1. Become.
Further, the adhesive 5 directed downward reaches the chamfered portion on the back surface side of the floor material 1 and also enters between the floor material back surface 1t and the floor base material 2, and has a bonding effect on the floor base material 2. Demonstrate.

  Thus, since the adhesive 5 for joining the floor materials 1 and 1 accumulates in various spaces such as the glue reservoir 23, it is possible to avoid the protrusion of the floor material surface 1s from between the end faces. it can. In addition, since the adhesive 5 easily spreads to the floor material back surface 1t side, the adhesive 5 can be used efficiently.

Next, another embodiment of the present invention will be described.
4A and 4B are explanatory views of the flooring according to the present embodiment, in which FIG. 4A is a longitudinal sectional view, and FIG. 4B is a schematic longitudinal sectional view showing a main part joining and fixing structure. is there.

  Compared with the flooring 1 shown in FIG. 1, the flooring 1 has no glue reservoir 23 and the upper surface of the support part 22b on the base side of the stepped part 22a of the lower projecting part 22 is stepped down. It is different that it is inclined downward 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 drawings in FIG. 4 and the description thereof is omitted.

  The dimensional relationship is the same as that of the flooring 1 shown in FIG. The point that various effects due to the dimensional relationship are exhibited is naturally the same as that of FIG. 1, and the description thereof is also omitted.

  In this flooring 1, when the upper surface of the support portion 22 b of the lower protruding portion 22 is inclined downward toward the stepped portion 22 a, the injected bonding adhesive 5 is caused to flow downward. It can be made easier. In addition, although the glue pool part 23 (refer FIG. 1) is not formed in this flooring 1, the glue pool part 23 is provided, and in addition to the induction | guidance | derivation effect | action of the downward direction of the adhesive agent 5, the upward movement prohibition is prohibited. It is good also as a structure with an effect | action.

DESCRIPTION OF SYMBOLS 1 Floor material 1s Floor material surface 1t Floor material back surface 1X Front floor material 1Y Rear floor material 2 Floor base material 5 Adhesive 8 Nail 8a Head part 10 Male part 10a Chamfer part 11 Upper notch part 12 Lower notch part 12a Overlay part 20 Female real part 20b Groove bottom part 21 Upper projecting part 22 Lower projecting part 22a Stepped part 22b Support part 23 Glue storage part A Depth dimension from floor material surface of upper notch part B Thickness dimension of male actual part C Lower notch part Depth dimension from the back of the floor material X Projection dimension from the bottom of the female part of the lower projection Y Projection dimension from the bottom of the female part of the upper projection

Claims (6)

Providing a ridge-shaped male part at one side end in at least one side end part in one direction, providing a groove-like female part at the other side end part, and adjacent flooring and side edges In the flooring material that can be sexed between parts,
An upper notch is formed above the male part, and a lower notch is formed below the male part,
The depth dimension from the floor material surface of the upper notch is smaller than the thickness dimension of the male part, and the thickness dimension of the male part is smaller than the depth dimension from the back surface of the floor of the lower notch part. While making the depth dimension from the floor material back surface of the lower notch part smaller than the sum of the depth dimension from the floor material surface of the upper notch part and the thickness dimension of the male part,
An upper protrusion corresponding to the upper notch is formed above the female real part, and a lower protrusion corresponding to the lower notch is formed below the female real part,
A chamfered portion is formed in each corner portion on the floor material surface side of the upper notch portion and the upper protruding portion, and a depth dimension of the upper notch portion from the floor material surface is a thickness dimension in the chamfered portion. The flooring is characterized by being set to 2.0 mm or more and 3.2 mm or less except for. In claim 1,
A flooring material characterized in that a glue pool portion formed by further digging is formed at a groove bottom portion of the female real portion. In claim 1 or 2,
The lower projecting portion projects larger than the projecting dimension of the upper projecting portion from the groove bottom of the female real part, while the lower notch portion is formed to have a size capable of receiving the lower projecting portion. Flooring characterized by In claim 3,
A stepped portion is formed on the upper surface on the side end portion side of the lower projecting portion, and when the lower projecting portion is fitted to the lower notch portion of the adjacent flooring, the male portion and the lower portion are disposed. A flooring material, wherein a gap space is formed between the upper and lower sides of the protruding portion. In claim 4,
The floor material characterized in that the upper surface of the lower projecting portion on the base side with respect to the stepped portion is inclined downward toward the stepped portion side. In any one of Claims 3-5,
A built-up part is formed at the corner of the lower notch with the male part,
A flooring material, wherein a nail shaft portion passes through the build-up portion when nailing from the upper surface of the base portion of the male part.

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