JP4899136B2 - Joint structure of wooden flooring - Google Patents

Description

The present invention relates to a joint structure of a wooden floor material in a building or the like. It is widely known that a wooden floor material expands and contracts in accordance with a change in humidity in the indoor environment in which it is constructed. That is, it expands by moisture absorption and shrinks by drying. Since wooden flooring is joined side by side, when it expands, the flooring squeezes together and pushes up the flooring, or the flooring itself deforms to cause convex or concave warpage on the flooring surface. Arise. Also, when the flooring material expands and presses against each other, it causes pressure shrinkage on the flooring material, and when it is then dried and shrunk, it shrinks from the original dimensions, creating a large gap between the flooring materials. To do. The present invention provides a joint structure that prevents these problems.

As shown in FIG. 1, when the floor material 1 is installed close to the gap A with a small gap A, the frequency of occurrence of the above-described problems due to the expansion of the floor material 1 is high. Therefore, in order to make it difficult to collide even if the flooring 1 expands, the flooring 1 is constructed with a gap of about 0.3 mm to 1 mm indicated by a gap A as shown in FIG. However, it is extremely difficult to perform construction with the same gap amount while accurately shifting the floor material 1. Therefore, in order to mechanically open the gap, as shown in FIGS. 3 and 4, a plurality of paper or plastic separating materials, ie, spacers 2 are sandwiched between the mating portions of the floor material 1 at regular intervals as shown in FIG. Thus, a construction method is performed in which the flooring is fixed and then the spacer 2 is removed. The construction method is disclosed in, for example, Patent Document 1 and Patent Document 4 below. In addition, in the following Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 5, and Patent Document 6, a method of attaching an elastic body or the like instead of the spacer 2 to the end surface of the floor material to open a gap between the floor materials is as follows. It is disclosed.

JP 2006-322145 (5 pages, FIG. 1, FIG. 2, FIG. 3, FIG. 4) A separation material (spacer 2) is described as a “gap adjusting material”, and a method of opening a gap through floor materials is disclosed. ing. Japanese Patent Application Laid-Open No. 11-131771 (page 5, FIG. 1 and FIG. 2) discloses a method of forming a gap by interposing a space material at an end portion of a floor material and opening the gap between the floor materials. . Japanese Patent Laid-Open No. 10-37439 (page 4, FIG. 1 and FIG. 2) discloses a method in which an elastic body is attached to the tip and a gap is formed between floor materials using a spacer. Japanese Patent No. 2,781,054 (page 3, FIG. 3, FIG. 5) discloses a method of opening a gap between floor materials using a spacer. In JP-A-9-144282 (page 4, FIG. 1, FIG. 5, FIG. 7), by providing a gap forming material on the joining end surface excluding the surface side of the flooring, a gap is formed between the joining end faces. A method of opening a gap is disclosed. Japanese Patent Laid-Open No. 9-203191 discloses a method in which a high-foamed elastic body having the same color as the flooring material is provided at the end of the flooring material to open a gap between the flooring materials.

In the conventional construction method using the gap adjusting material and the spacer, ie, the spacer 2 shown in FIGS. 3 and 4, disclosed in Patent Document 1 and Patent Document 4, it is necessary to prepare a large amount of spacer 2. The material cost, installation work and removal work were expensive. Furthermore, the spacer 2 is left behind at the place where the spacer 2 is sandwiched during the removal work, and there is a drawback that the work for completely removing the spacer 2 is troublesome or cannot be completely removed. Further, the gap A formed by the spacer 2 is not necessarily the thickness of the spacer 2, and the gap A may be formed more than the thickness, so that the floor material 1 is not evenly adhered and clean.

Unlike the spacer 2, the space material, the elastic body, the gap forming material, and the highly foamed elastic body disclosed in Patent Literature 2, Patent Literature 3, Patent Literature 5, and Patent Literature 6, respectively, need to be removed after construction. However, since it is a separate material from the flooring material, the material cost and the manufacturing equipment and its operation are expensive to attach to the flooring material with high accuracy. In addition, space materials, elastic bodies, gap forming materials, and highly foamed elastic materials are also elastic materials that can be easily deformed by the pressure applied during the construction of floor materials, so they can be used together with spacers 2 that are difficult to deform. There was a drawback that the amount of gap between the holes was difficult to be uniform. In addition, since the material is different from the flooring material, the color may change due to deterioration over time and the design may be damaged, or the material may be deteriorated and deteriorated to lose the elastic function.

In order to solve the above-mentioned problems, the first characteristic structure in the joint structure of the wooden flooring according to the present invention is, as described in claim 1, for example, in one or both of the joint end faces as shown in FIGS. A small protrusion 3 that is integrally formed of the same material as the wooden flooring 1 shown and abuts against the opposing end face is provided, and a gap A shown in FIGS. 5 and 7 is formed between the joining end faces. Further, the strength of the small protrusions 3 is not crushed by the pressure acting at the time of construction of the wooden flooring 1, and the wooden flooring is close due to expansion due to moisture absorption, and a strong pressure is concentrated on the small protrusions 3, FIG. As shown in FIG. 9, the structure has the strength to be crushed.

As described in claim 2, the second characteristic structure is formed on one end face of the wooden flooring according to the present invention, for example, on the other end face that comes into contact with the small protrusion 3 of claim 1 shown in FIG. At the position, the recess 4 is integrally formed of the same material as the wooden flooring, and a gap A is formed on the joining end surface by contacting with the small protrusion 3, and the wooden flooring is absorbed by moisture as shown in FIGS. The small protrusions 3 are crushed by expansion and fit in the recesses 4. Further, the gap A can be easily and accurately adjusted to the required size by adjusting the size of either or both of the small protrusion 3 and the recess 4 during processing.

The third feature is that, as described in claim 3, as shown in FIG. 5 to FIG. 25, the joint that is actually joined to the projections and depressions, as shown in FIG. 26 and FIG. As shown by 30, it is a joint structure in which the small protrusion 3 of claim 1 and the recess 4 of claim 2 are provided on the wooden floor regardless of the shape of the joint end face such as potato joint.

The fourth feature of the present invention is that, as described in claim 4, the base material of the wooden floor material is made of solid wood, plywood, medium wood fiber board, hard wood fiber board, or particle board. 3 is a joint structure provided in the wooden flooring according to 3.

The fifth feature is that, as described in claim 5, the joint structure is provided on the wooden flooring according to claim 1, 2, 3 or 4 attached to a floor surface, a wall surface, or a ceiling surface. is there.

The wooden flooring of the present invention as shown in FIG. 5 has the small protrusion 3 described in claim 1, and the wooden flooring of the present invention as shown in FIG. 15 has the small protrusion described in claim 1. Since the protrusion 3 and the recess 4 described in claim 2 are integrally processed with the same material as the flooring material, the flooring material 1 can be obtained by simply placing the flooring material and fixing it. In the meantime, the gap A, which is an expansion space due to moisture absorption, can be accurately secured. At the same time, the small protrusion 3 is crushed as shown in FIGS. 8 and 9, and the small protrusion 3 is crushed and fit in the dent 4 as shown in FIGS. 17 and 18. Since the function of absorbing expansion can be imparted, the wooden flooring can be prevented from being pushed up and deformed. Therefore, the material cost of the spacer used in the conventional construction, the labor of attaching and detaching can be saved, the material cost of the elastic body etc. attached to the end face of the flooring material and the installation cost are unnecessary, and the small protrusion 3 and Since no additional processing costs are incurred in the formation of the recesses 4, it is possible to save significant costs both in the construction and production of the flooring.

Since the floor material 1 shown in FIG. 4 is not necessarily all straight, if the floor material to be constructed is bent in the conventional construction method, the dimension of the gap A varies between the portion where the spacer 2 is sandwiched and the portion where the spacer 2 is not sandwiched. 6 and 16, the small protrusions 3 and the dents 4 of the present invention are continuously formed on the joining end face of the joining portion of the flooring 1 at the time of processing. Even if there is a bend in 1, the bend is corrected straightly and fixed while pressing firmly against the previously fixed flooring, so that a uniform gap A can be formed with high precision, so the finished quality of the floor is greatly improved. To do.

In the present invention, the spacer or elastic body, which is a different material from the wooden flooring used in the prior art, is not used, so the attached spacer cannot be removed neatly and the debris will not remain, and the elastic body will remain on the flooring surface. There is no side problem of overhanging or deteriorating.

In the small protrusions 3 and the dents 4 of the present invention, when the floor material 1 absorbs moisture and expands, the expansion pressure of the flooring material is concentrated only on the wood portion of the floor material 1 where the small protrusions 3 and the small protrusions 3 hit. Then, since the gap A is reduced by being applied and crushed, the shrinkage deformation due to the expansion pressure remains only in the small protrusions 3 and the recesses 4 of the present invention and does not reach the entire flooring 1 itself. It is possible to suppress the occurrence of large gaps due to deformation, pressure shrinkage.

  Solid wood, plywood, medium wood fiberboard, hard wood fiberboard, and particleboard used for the wooden flooring according to claim 4 have different amounts of expansion due to moisture absorption for each wood material, so use the conventional spacer 2 In the construction method, the spacers 2 having different thicknesses had to be stocked in order to form the gaps A according to the respective wooden materials. However, according to the present invention, the gaps A matched to the expansion amount of the respective wooden materials. The size can be easily increased or decreased simply by adjusting the processing blades that form the small protrusions 3 and the recesses 4, and there is no need to stock the spacers 2.

  The small protrusion 3 according to claim 1 and the recess 4 according to claim 2 of the present invention are solid wood, plywood, medium wood fiber board, hard wood fiber board, particle board according to claim 4 of the present invention. Since it can be formed on a flooring based on a wood material such as a joint material that is actually joined to the unevenness according to claim 3 of the present invention, a joint-joint joint, or a potato joint structure by the same material and integrated processing, the wood material The effects of the present invention can be used in a wide range of materials and bonding structures. Further, any of the base materials of the wood material such as the solid wood, the plywood, the medium wood fiber board, the hard wood fiber board, and the particle board described in claim 4 of the present invention is expanded by the moisture absorption. The effect of the present invention in which the protrusion 3 is crushed and deformed can be used. Moreover, the effect of this invention which accommodates the crushed small protrusion 3 in the dent 4 described in Claim 2 of this invention can also be utilized.

  The effect provided by the small protrusion 3 according to the first aspect of the present invention and the recess 4 according to the second aspect of the present invention is the wooden floor attached to the floor surface, wall surface and ceiling surface as described in the fifth aspect of the present invention. It can be used as it is for the material.

It is sectional drawing which shows the Example of the prior art of the flooring which combines a male seed (Ozane) and a female seed (Mezzanine) in a junction part. It is sectional drawing which shows the other Example of a prior art. In other Example of prior art, it is sectional drawing of the state attached on both sides of the floor material through the spacer. FIG. 4 is a perspective view of FIG. 3. It is sectional drawing which provided the small protrusion of this invention. The broken line circle V shows the portion of FIG. It is a perspective view of one flooring material of FIG. It is the V section enlarged view of FIG. It is sectional drawing which shows a mode that the small protrusion of this invention was crushed. The broken line circle VI shows the part of FIG. It is the VI section enlarged view of FIG. It is sectional drawing which provided the small protrusion of this invention in the right mezzanine side upper part. It is sectional drawing which provided the small protrusion of this invention in the left Ozane side center part. It is sectional drawing which provided the small processus | protrusion of this invention in the right mezzanine side center part. It is sectional drawing which provided the small protrusion of this invention in the left Ozane side lower part. It is sectional drawing which provided the small protrusion of this invention in the right mezzanine side lower part. It is sectional drawing which provided the small protrusion of this invention in the left Ozane side upper part, and provided the dent of this invention in the right mezzanine side upper part. It is a perspective view of one flooring material of FIG. FIG. 16 is a cross-sectional view in which the floor material of FIG. 15 expands and approaches, and the small protrusions of the present invention are crushed and accommodated in the recesses of the present invention. The broken line circle VII shows the part of FIG. It is the VII part enlarged view of FIG. It is sectional drawing which provided the dent of this invention in the left Ozane side upper part, and provided the small protrusion of this invention in the right mezzanine side upper part. It is sectional drawing which provided the small protrusion of this invention in the left Ozane side upper part and lower part. It is sectional drawing which provided the small protrusion of this invention in the left Ozane side upper part and the right mezzanine side lower part. It is sectional drawing which provided the small protrusion of this invention in the left Ozane side upper part and lower part, and provided the dent of this invention in the right mezzanine side part which each contact | abuts. A sectional view in which the small protrusions of the present invention are provided in the upper part on the left side and the lower part on the right side of the right eye, and the indentations of the present invention are provided in the upper part on the right side of the right eye and the lower part on the left side of the right eye. is there. It is sectional drawing which provided the several small protrusion of this invention in the left Ozane side upper part. It is sectional drawing which provided the several small protrusion of this invention in the left Ozane side lower part. It is sectional drawing which provided the small processus | protrusion of this invention in the upper part of the left jointing shape. It is sectional drawing which provided the small processus | protrusion of this invention in the lower part of the right jointing shape. It is sectional drawing which provided the small protrusion of this invention in the upper part of the joining process shape. It is sectional drawing which provided the small protrusion of this invention in the lower part of the joining process shape. It is sectional drawing which provided the small processus | protrusion of this invention in the middle part of the joining process shape. FIG. 13 is a cross-sectional view illustrating a state in which the floor material of FIG. 12 expands and comes close to the small protrusion of the present invention. It is a fragmentary sectional view of the triangular-shaped small protrusion of this invention. It is a fragmentary sectional view of the trapezoid-shaped small protrusion of this invention. It is a fragmentary sectional view of the small protrusion of a quadratic curve shape in the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 4 show an embodiment of the prior art, and FIGS. 5 to 34 show an embodiment of the technique according to the present invention.

In general, a wooden floor material is formed with a male part (Ozanet) of a convex part and a female part (Mezzanine) of a concave part as a fitting part in a joint part that is actually joined to the unevenness. 5, 6, 8, 10 to 17, and 19 to 25, there are three portions close to each other at the time of fitting. A method for carrying out the present invention is shown in a shape in which one or a plurality of small protrusions 3 are integrally processed at the same time as the ozan or mezzanine at three portions. 26 and 27 show the working shape of the small protrusion 3 formed on the joint end face of the joint joint and the joint end face of FIG. 28 to FIG. 30 on the joint end (planar shape). .

5 and 10 show the small protrusion 3 according to claim 1 of the present invention provided on the upper portion of the flooring 1, and FIG. 7 shows the small protrusion 3 in an enlarged view of the V portion in FIG. 9 shows an enlarged view of the VI part in FIG. 8 and shows the effect of claim 1 of the present invention in which the floor material 1 comes close to the small protrusion 3 due to expansion due to moisture absorption.

15 to 19 show a small protrusion 3 according to the present invention and a recess 4 according to a second aspect of the present invention formed in a portion contacting the small protrusion 3. FIG. 17 shows the proximity of the floor material 1 of FIG. 15 due to expansion, and FIG. 18 is an enlarged view of the VII part of FIG. 17, and the small protrusion 3 is crushed by the proximity of the floor material 1 and fits in the recess 4. The state in which the gap A becomes almost zero is shown in an enlarged manner, and the effect of claim 2 of the present invention is shown.

20 to 25 show sectional views provided with a plurality of small projections 3 of the present invention, and FIGS. 22 and 23 show sectional views formed with a plurality of recesses 4 of the present invention.

  26 and 27 show cross-sectional views in which the small protrusions 3 of the present invention are provided in the splice joint, and FIGS. 28 to 30 show cross-sectional views in which the small protrusions 3 of the present invention are provided in the joint.

FIG. 31 shows a state in which the gap A formed in the floor material by the small protrusions 3 of FIG. 12 becomes zero when the small protrusions 3 are crushed by about half due to the expansion of the floor material and the surface of the floor material 1 is blocked.

  FIGS. 32 to 34 are sectional views of only the small protrusion 3 of the present invention, and show a triangular shape, a trapezoidal shape, and a quadratic curve shape, respectively. In practice, the floor material 1 and the small protrusion 3 are integrated with the same material. ing.

The size of the gap A necessary to absorb the expansion of the flooring varies depending on the expansion rate of the flooring material and the width and length of the flooring. For example, when the moisture content changes by 5% due to dry or wet conditions, the solid wood flooring material has a width change of 0.5% to 2% due to the difference in the tree species and the difference in grain and grain of the grain. The size of the gap A required for the process has a width several times or more. If the gap A is excessively large, the gap is conspicuous and difficult to see when viewed from above the flooring, and it becomes a problem in practical use such as dust easily clogging the gap. Therefore, the gap A is suitably 1 mm or less. Also, as the floor material width and length dimensions increase, the absolute amount of expansion changes according to the ratio of the width and length, so the floor material width and length dimensions are determined in light of practicality and design. Accordingly, the size of the small protrusion of the present invention is determined accordingly. Furthermore, since the strength at the time of crushing varies depending on the tree species and material, the size and shape of the small protrusions and recesses of the present invention are determined in accordance with the material strength.

For example, in the case of a flooring material having a thickness of 15 mm, the cross-sectional shape of the small protrusion 3 portion shown in FIG. 12 is as shown in FIG. 32 where the base contacting the flooring surface is 0.5 mm to 2 mm and the height is 0.5 to 2 mm. A trapezoid as shown in FIG. 33, which is a simple triangle or an upper base of 1/6 to 1/4 of the lower base and a height of 0.5-2 mm, and is processed integrally with the mezzanine. Practically, the triangle tip becomes a small curved surface.
Further, the cross-sectional shape of the four recesses shown in FIG. 15 is a circular arc recess having a depth of 0.3 to 1 mm and a diameter of 2 to 5 mm, which is processed integrally with the mezzanine.
For example, when solid oak wood having a thickness of 15 mm and a width of 75 mm is used as a flooring material, the clearance A in the width direction of the flooring material 1 is set to 0.5 mm so as to project from the floor material end face of the small protrusion 3. The size of the small protrusions 3 is 0.6 mm for the shape of the small protrusion 3 and 0.5 mm for the trapezoid, and the base contacting the end surface is about 1 mm. Further, when a cedar solid material having a thickness of 15 mm and a width of 90 mm is used for the flooring material, in order to set the gap A in the width direction of the flooring material 1 to 0.5 mm, the small protrusion 3 protrudes from the end surface of the flooring material. It is appropriate that the small protrusion 3 has a triangular shape of 0.7 mm and a trapezoidal shape of 0.5 mm, and the base contacting the end surface is about 1.5 mm.

DESCRIPTION OF SYMBOLS 1 Wood flooring 2 Spacer material 3 Small protrusion 4 Indent A Clearance V Part of FIG. 5 Part VI of FIG. 8 Part VII of FIG.

Claims (7)

A joint structure in which a plurality of wooden flooring materials are joined side by side, and one or both of the joining end surfaces are provided with small protrusions that are integrally formed with the same material as the wooden flooring material and come into contact with the opposing end surfaces, and a gap is formed between the joining end surfaces. Forming, the strength of the small protrusions is the strength that collapses when the wooden flooring comes close by expansion due to moisture absorption ,
Forming one end face of the joining end face as a convex, and forming the other end face of the joining end face into a recess engaging the convex;
The convex has a fitting projection that fits into the concave,
The small protrusion is lower than the fitting protrusion,
The small protrusion is at a position higher than the convex or the concave,
At the position of the other end surface that contacts the small protrusion formed on one end surface of the wooden floor material, a recess is formed integrally with the wooden floor material, and by contacting the small protrusion, a gap is formed on the joint end surface. When the wooden floor material is formed and closes by expansion due to moisture absorption, the small protrusion is crushed and fits in the recess . A joint structure for joining a plurality of wooden floors side by side,
The plurality of wooden flooring materials are composed of one wooden flooring material and the other wooden flooring material,
The end surface of the one wooden flooring is convex, and the end surface of the other wooden flooring is formed into a concave engaging with the convex, respectively.
The convex has a fitting projection that fits into the concave,
A small protrusion lower than the fitting protrusion is formed on the end surface of the one wooden floor material or the end surface of the other wooden floor material,
Of the end face of the one wooden flooring, the end face of the other wooden flooring, a recess is formed at the position of the end face contacting the small protrusion,
The small protrusion is at a position higher than the convex or the concave,
The small protrusion is formed integrally with the end surface of the one wooden floor material, or the small protrusion is formed integrally with the end surface of the other wooden floor material,
The end of the one wooden floor and the end of the other wooden floor are joined by fitting the convex to the concave, and the small protrusion is connected to the end of the one wooden floor or the other wooden floor. A joint structure for a wooden floor material, wherein the small protrusions are crushed by expansion due to moisture absorption of the wooden floor material. A joint structure in which a plurality of wooden flooring materials are joined side by side, and one or both of the joining end surfaces are provided with small protrusions that are integrally formed with the same material as the wooden flooring material and come into contact with the opposing end surfaces, and a gap is formed between the joining end surfaces. Forming, the strength of the small protrusions is the strength that collapses when the wooden flooring comes close by expansion due to moisture absorption ,
Forming one end face of the joining end face as a convex, and forming the other end face of the joining end face into a recess engaging the convex;
The convex has a fitting projection that fits into the concave,
The small protrusion is lower than the fitting protrusion,
The small protrusion is at a position lower than the convex or the concave,
At the position of the other end surface that contacts the small protrusion formed on one end surface of the wooden floor material, a recess is formed integrally with the wooden floor material, and by contacting the small protrusion, a gap is formed on the joint end surface. When the wooden floor material is formed and closes by expansion due to moisture absorption, the small protrusion is crushed and fits in the recess . A joint structure for joining a plurality of wooden floors side by side,
The plurality of wooden flooring materials are composed of one wooden flooring material and the other wooden flooring material,
The end surface of the one wooden flooring is convex, and the end surface of the other wooden flooring is formed into a concave engaging with the convex, respectively.
The convex has a fitting projection that fits into the concave,
A small protrusion lower than the fitting protrusion is formed on the end surface of the one wooden floor material or the end surface of the other wooden floor material,
Of the end face of the one wooden flooring, the end face of the other wooden flooring, a recess is formed at the position of the end face contacting the small protrusion,
The small protrusion is at a position lower than the convex or the concave,
The small protrusion is formed integrally with the end surface of the one wooden floor material, or the small protrusion is formed integrally with the end surface of the other wooden floor material,
The end of the one wooden floor and the end of the other wooden floor are joined by fitting the convex to the concave, and the small protrusion is connected to the end of the one wooden floor or the other wooden floor. A joint structure for a wooden floor material, wherein the small protrusions are crushed by expansion due to moisture absorption of the wooden floor material. The small protrusion is provided in a vertical portion of the end face and has a tapered shape as it goes to the tip. The joint structure for a wooden flooring according to any one of claims 1 to 4.     The wood flooring joint structure according to any one of claims 1 to 4, wherein the base material of the wooden flooring is any one of solid wood, plywood, medium wood fiberboard, hard wood fiberboard, and particle board. . The junction structure of the wooden flooring material according to any one of claims 1 to 4, wherein the plurality of wooden flooring materials are attached to any one of a floor surface, a wall surface, and a ceiling surface.