JP3118632B2 - Floor structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a floor structure.

[0002]

2. Description of the Related Art Conventionally, as a floor structure in which a floorboard is adhered to a floor base, a bonding fruit is formed at the opening of the floorboard, and this fruit is bonded to a floorboard adjacent in the longitudinal direction and the width direction of the floorboard. In general, it is stretched.

Further, in order to prevent warpage of the floor material after construction and occurrence of a gap or the like at a joint portion of the floor material, a base plate having substantially the same dimensions as the decorative plate is provided on two sides of the decorative plate. In the first decorative floor, an adhesive is applied to the back of the decorative floor material and the nailing portion using a decorative floor material stuck so as to protrude outward to form a nailing portion having a fixed width. Put the material in place, fix it by nailing it into the nailing part, insert the second decorative flooring material, bring it in so that there is no gap, and then nail it into the nailing part It is also known that a method of using a nail in combination is known.

[0004]

The floor structure constructed by such a construction method using glue nails is an environment in which both the decorative flooring material and the base plate adhered to the back surface are constructed for a long period of time. The moisture content changes with changes in humidity and temperature, and at the same time, the plate material repeats the contracting and expanding movement.

[0005] At this time, even if the contraction and expansion characteristics of the plate material are uniform in both the length direction and the width direction, if the plate material has a size of, for example, 1 × 6, it will extend in the longitudinal direction of 6 ×. Is larger than the size of the contraction / expansion in the width direction of one scale.

Such a force for contracting or expanding is generated in each decorative flooring material. However, in the floor structure by the above-described construction method using the glue nail, the bonding of the joint with the adhesive or the nailing is performed. , And there is no escape.

[0007] However, the temperature and humidity greatly change in summer and winter throughout the year, and even during the daytime when the heating equipment or the cooling equipment is operating and the daytime and when the nighttime is not operating, the same applies. , The contraction and expansion of the floorboard are repeated with this change.

[0008] As such contraction and expansion are repeated for a long period of time, the above-mentioned compulsory restraining force is gradually weakened, and even at one place on the floor surface on which many floor materials are constructed, the contraction of the plate material is reduced. When the expansion force exceeds the restraining force, a gap is generated in the joint, and the contraction and expansion force constrained in the surrounding plate material concentrates at that point, and instantaneously grows into a large gap, or However, there is a disadvantage that large push-up occurs.

Such a phenomenon is likely to occur when a heating facility such as a stove is placed on the floor and the temperature of the floorboard partially increases. In other words, only the floor plate near the stove has a reduced moisture content due to the heat of the stove,
The floorboard near the stove moves to shrink, and the floorboard that is not affected by the heat from the stove is fixed by the adhesive and nails between the floor base and the floorboard. . For this reason, the load concentrates on the portion where the floorboards are joined and bonded, and the force for shrinking exceeds the peel strength of the adhesive, and at the same time, a large gap is generated at the joined portion.

[0010]

SUMMARY OF THE INVENTION To solve such problems, the present inventor has developed a floor structure capable of preventing a gap or a push-up of a floor material joint in a floor structure, or preventing occurrence of warpage of the floor material. As a result of intensive studies to provide the present invention, the present invention has been achieved.

That is, according to the present invention, a floorboard composed of a floorboard substrate having joints formed at least at both longitudinal ends thereof and a cushioning material adhered to the back surface of the floorboard substrate is stretched on a floor base surface. In the floor structure, the back surface of the cushioning material of each floor plate is adhered to the floor base surface with an adhesive, and the floor plate adjacent in the longitudinal direction is a joint formed at both ends of the floor plate substrate in the longitudinal direction. The floor structure is characterized by being bonded and bonded by an adhesive and stretched without being bonded to a floor plate adjacent in the width direction.

According to the floor structure of the present invention, the cushioning material is adhered to the back surface of the floor material substrate, and the back surface of the cushioning material is adhered to the floor base surface by the adhesive. The contraction and expansion can be freely contracted and expanded irrespective of the adhesion to the floor base surface due to the elasticity of the cushioning material. Furthermore, since the floor board adjacent in the width direction is integrated with the adhesive only with the floor board adjacent in the longitudinal direction without being bonded by an adhesive, the floor board particularly shrinks and expands. The problematic longitudinal contraction and expansion is free to move without any restrictions. For this reason, even if a long period of time has passed after the construction, it is possible to prevent a gap from being generated between the floor boards and the occurrence of warpage.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a sectional view of a floor plate used in a floor structure according to the present invention, wherein bonding nuts 1a and 1b are formed on a cut edge of a floor plate substrate 1 in a longitudinal direction. I have. A cushioning material 2 is adhered to the back surface of the floor board substrate 1 via an adhesive.

As the floorboard substrate 1 forming the floorboard of the present invention, for example, a wood board such as a plywood, a wood chip board, a wood fiber board, a veneer laminated board, or a combination of any wood board, or a board material It is possible to use a laminated material in which a synthetic resin sheet, a foamed synthetic resin sheet, a sound insulation sheet, or the like having an excellent buffering effect is sandwiched between a plate material.
The floorboard used in the present invention has a rectangular shape in which one of adjacent sides is at least twice as long as the other.

A joint is formed at least at both longitudinal ends of the floorboard substrate. As this joint, FIG.
As shown in the table below, it is possible to use one that has been subjected to actual processing, such as real or fixed, hiring. Further, a plate material of the same size which is staggered and adhered to the back surface of the plate material which has been subjected to the actual processing can also be used. Further, both the gussets in the width direction may be subjected to the same actual processing, or may be used without any actual processing.

Further, an optional decorative layer can be formed on the surface of the floor board substrate 1. This decorative layer is a natural veneer obtained by cutting natural wood, an artificial veneer, a veneer sheet lined with nonwoven fabric, paper, synthetic resin sheet, etc., or decorative paper,
It is formed by bonding a decorative sheet such as a resin-impregnated paper, nonwoven fabric, paper, or synthetic resin sheet using an adhesive, or by directly painting or printing on the surface of the decorative plate. Further, an overcoat layer can be provided on the surface of the decorative layer.

Further, by forming a groove (not shown) from the back side of the floor substrate 1, the rigidity of the floor substrate 1 is reduced, and when an impact is applied to the floor plate surface, the impact is caused by deformation of the floor substrate itself. It can be absorbed and the soundproof performance can be improved.

The cushioning material 2 of the present invention has a cushioning function of absorbing shock energy by contracting and deforming the shock applied to the surface of the floor board substrate 1, and furthermore, the back surface of the cushioning material is bonded with an adhesive. Even after bonding to the floor base,
It has a function of contracting and expanding in accordance with contraction and expansion of the floor board substrate due to a change in humidity.

As the cushioning material, for example, a synthetic resin foam such as a polyethylene resin, a polypropylene resin, a polyurethane resin, and a polystyrene resin, a rubber foam, and a nonwoven fabric can be used.

FIG. 3 is a plan view of the floor structure according to the present invention, in which a floor plate having a length approximately four times as long as the width of the floor plate is constructed. This shows a state in which the joints formed at both ends of the floorboard in the longitudinal direction are joined and bonded by an adhesive. The portion A in the figure is a portion bonded by an adhesive. FIG. 4 is a cross-sectional view of the wood-mouth joining state in the longitudinal direction, and A is a portion where the back surface of the cushioning material 2, the floor base surface, and the wood-mouth joining portion are adhered by an adhesive.

The method of constructing the floor structure of the present invention includes:
First, an adhesive is applied to the back surface of the floor board or the floor base, and an adhesive is applied to the longitudinal opening of the floor board substrate 1, and the first floor board is bonded to the floor base. Next, similarly, the floor plate to which the adhesive has been applied is fitted in such a manner that the longitudinal edges are joined, and the joined portions are joined and adhered. After the first row of floorboards are continuously connected in the longitudinal direction as described above, the second row is similarly constructed.
At this time, no adhesive is used between the first and second rows. Even in the case where the joining process such as the actual fruit is performed on the opening in the width direction of the floorboard, only the fitting portion is fitted, and the bonding with the adhesive is not performed.

[0022]

According to the floor structure of the present invention, the longitudinal direction of the floor plate is joined and bonded to form a single plate-like body. It is in a state where it can move. Further, since the cushioning material on the back side of the floorboard is adhered to the floor base surface via an adhesive, the floorboard substrate can freely contract and expand. When such a floor structure undergoes shrinkage and expansion due to changes in humidity and temperature after construction, the shrinkage and expansion in the longitudinal direction, which has been a problem in the past, especially when the shrinkage and expansion movement is large, It contracts and expands as one adhesively bonded floor plate. For this reason, shrinkage of the floorboard
Shrinkage can be seen only at the wall portions, which are both ends of the row of floorboards in the longitudinal direction, and become inconspicuous. Furthermore, by forming a floor on the lower surface of the baseboard having a thickness such that the dimensional change when the floorboard contracts and expands at the wall portion is not visible from the surface, the movement of the floorboard due to the contraction and expansion of the floorboard is completely unknown. It will be.

Further, even when a stove or the like is placed on the floor and a contraction occurs only in the floor plate near the stove,
Since the shrinkage occurs independently for each row of the floorboard, the shrinkage that occurs near the stove occurs only in that row, and does not affect the floorboard portion that is not affected by the heat of the stove.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a floor panel used in a floor structure of the present invention.

FIG. 2 is a partial cross-sectional view showing a state in which the floorboards of FIG. 1 are joined to each other via a nut formed at a longitudinal edge thereof.

FIG. 3 is a plan view showing a floor structure of the present invention in which a floorboard is stretched on a floor base as shown in FIG. 2;

FIG. 4 is a partial cross-sectional view showing a longitudinal joint between floor plates in the floor structure of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor board 2 Buffer material A Adhesion part by adhesive

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04F 15/00 601 E04F 15/04 E04F 15/04 601

Claims (1)

(57) [Claims] 1. A floor structure in which a floorboard comprising a floorboard substrate having joints formed at least at both ends in a longitudinal direction and a cushioning material adhered to the back surface of the floorboard substrate is stretched on a floor base surface. In addition, the back surface of the cushioning material of each floor plate is adhered to the floor base surface with an adhesive, and the floor plate adjacent to the longitudinal direction is joined to the floor plate substrate at the joints formed at both ends in the longitudinal direction by the adhesive. A floor structure characterized by being joined and bonded, and stretched without being bonded to a floor board adjacent in the width direction.