JP2000045444A - Floor panel unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To multi-functionalize a floor panel unit by improving the soundproof function of a soundproof floor, improving the durability, and adding heat insulating performance. SOLUTION: This floor panel unit 1 having an upper end opening, box-type styrene foam case 3, is stuck and fixed in a prescribed section area except for the circumferential edge in the rear face of the floor panel 2 of a plywood or a particle board, with a glass wool sound absorbing and heat insulating material 4 filled therein. The floor panel 2 is mounted on joists 5 and the soundproof plywood 6 is laid on the floor panel 2 as necessary to be constructed into a soundproof and heat insulating floor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel unit to be incorporated into a floor of each floor of a wooden house or a concrete house, and more particularly, to a floor panel unit for discarding a soundproof floor having an improved soundproof function.

[0002]

2. Description of the Related Art In recent years, there has been a tendency to use sound-insulating flooring materials with enhanced soundproofing on floors of apartment houses and other condominiums. Various soundproofing plywoods are generally used as the soundproofing flooring, such as a plywood in which a soundproofing sheet such as a rubber sheet is pressure-bonded in the middle, and a plywood in which a cushioning material such as sponge is stuck on the back surface.

As a floor structure of a wooden house using this type of soundproof plywood as a floor, there are two types of floor structure: a soundproof plywood laid in a single layer on a square joist, and a discarded panel laid on a joist. There is a discarded structure in which soundproof plywood is laid on a single layer. The discarded panel is wood only plywood or particle board. Moreover, in a concrete house, there is a soundproof floor structure in which a discarded panel or a soundproof plywood is supported on a concrete floor by supporting legs of bolts.

[0004]

The soundproof plywood described above has various shapes and cross-sectional structures, and its soundproof performance also varies depending on the application. Generally, the more complex and expensive the structure, the better the soundproof performance. . For this reason, there is a problem that expensive soundproof plywood has to be used in floor construction and renovation, such as an apartment house, which requires a high level of soundproofing performance on downstairs.

[0005] Even if the soundproofing performance of the soundproofing plywood is somewhat poor, the soundproofing performance of the entire soundproofing floor can be improved by laying the soundproofing plywood on a discarding panel to form a two-layer soundproofing floor. The soundproofing property itself is poor, and the effect of improving the soundproofing performance of the entire two-layer soundproofing floor by this discarded panel is small. Therefore, sound absorbing material such as glass wool is attached to the back of the discarded panel to provide sound insulation to the discarded panel itself.In this case, the sound absorbing material on the back of the discarded panel becomes It absorbs moisture from concrete floors, etc., and the moisture is absorbed by the panel, which causes the panel to warp, and the warp deforms a part of the soundproof plywood on the panel. The floor appearance may deteriorate.

A sound absorbing material such as a soundproof plywood or a glass wool to be adhered to the back of a discarded panel is also a heat insulating material.
It has also been practiced to increase the amount of sound-absorbing heat insulating material such as glass wool to use as a floor material for floor heating. However, also in this case, the sound-absorbing heat-insulating material absorbs moisture and may warp the soundproof plywood or the discarded panel, and furthermore, absorbing moisture may lower the heat insulating property and deteriorate the thermal efficiency of floor heating. .

It is an object of the present invention to provide a multifunctional floor panel unit which, when used as the above-mentioned discarded panel, becomes a soundproof and heat-insulated discarded panel which enhances the soundproofing and heat insulating performance of the floor.

[0008]

The technical means for achieving the above object of the present invention is that an upper end surface of an opening is bonded to a floor panel of plywood or particle board and a predetermined area excluding a peripheral portion of a back surface of the floor panel. It is characterized by comprising a fixed top-opening box-shaped styrofoam case, and a sound-absorbing heat insulating material such as glass wool filled between the floor panel and the styrofoam case before the styrofoam case is fixed to the back of the floor panel. And

[0009] In the present invention, the floor panel is rectangular,
The rear surface of the floor panel is divided into a plurality of rectangular partitioned areas by a vertical center line and / or a horizontal center line of the floor panel, and a styrofoam case and a sound absorbing heat insulating material are provided at a central portion of each of the partitioned areas except for all peripheral edges. Is fixed.

Here, the floor panel of plywood or particle board may correspond to a conventional discarded panel.
The floor panel unit is constituted by fixing the sound absorbing heat insulating material on the back surface of the floor panel by surrounding it with a styrofoam case. The sound-absorbing heat-insulating material absorbs the sound transmitted inside and outside the floor panel, and enhances the sound insulation performance of the entire floor panel unit. In addition, the sound-absorbing heat insulating material and the styrofoam case are both excellent heat insulating materials. If the floor panel unit is used for a floor plate having a floor heating structure, a floor heating structure with good thermal efficiency can be realized. In addition, since the Styrofoam case has excellent water and moisture resistance, it protects the sound-absorbing heat insulating material from external moisture, prevents deformation (warpage) of the floor panel unit, and prevents deterioration of heat insulation.

The present invention is also directed to an outer peripheral portion of each of a plurality of styrofoam cases fixed to each partition area on the back surface of the floor panel, the outer extending portion extending to a portion between the outer periphery and the outer periphery of the floor panel. The protection portion and the inner extension protection portion extending between the adjacent Styrofoam cases are integrally formed so as to be cut and separable from the outer periphery of each Styrofoam with a blade.

The outer and inner protective portions of the styrofoam integrally formed on the outer periphery of each styrofoam case protect the peripheral edge of the floor panel from external impact when the floor panel unit is packed or transported. When the unit is constructed on joists or the like, it is cut and separated by a blade as necessary. The cutting and separation of the extension protection portion can be easily performed manually because the extension protection portion is made of styrene foam.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to FIGS.

FIGS. 1A and 1B show a soundproof floor having a discarded structure. A discarded panel laid on a joist 5 is a floor panel unit 1 according to an embodiment of the present invention. The floor panel unit 1 is a plywood or particle board floor panel 2.
A box-shaped styrofoam case 3 and a sound-absorbing heat insulating material 4 such as glass wool are fixed to the back surface. A floor finishing board, for example, an existing soundproof plywood 6 is laid on the floor panel 2 laid on the joist 5, and a soundproof floor or a soundproof and heat insulating floor suitable for floor heating is constructed.

FIG. 2 shows a concrete example of the floor panel unit 1.
(A) and (B), the floor panel 2 is a rectangular plate having a width of 606 mm and a length of 1,820 mm, and the back surface is divided into four sections by a horizontal center line and a vertical center line, and each of the four sections has a rectangular shape. Is placed. Each styrofoam case 3 is filled with a sound absorbing and insulating material 4 made of glass wool, and the styrofoam case 3 is fixed to the floor panel 2. Each Styrofoam case 3 is a rectangular box having a depth of 40 mm and a bottom plate having a thickness of 5 mm and side plates, and the upper end surface of the opening is fixed to the back surface of the floor panel 2 with an adhesive. Further, an outer seating surface 11 having a predetermined width w is formed on the back surface of the floor panel 2 between the outer periphery of each Styrofoam case 3 and the outer periphery of the floor panel 2, and a double width is provided on the back surface of the floor panel 2 between adjacent Styrofoam cases 3. A 2w inner bearing surface 12 is formed. Width w is joist 5
The floor panel 2 is laid on the joist 5 such that the outer seating surface 11 having a width w and the inner seating surface 12 having a width 2w are placed on the joist 5 at about 1/2 of the width. The joist 5 is a square bar of 45 × 45 mm.

The styrofoam case 3 before being fixed to the four partitioned areas on the back surface of the floor panel 2 is integrally connected by, for example, an outer extension protection portion 3a and an inner extension protection portion 3b as shown in FIG. . The outer extending protection portion 3a is a styrene foam rectangular frame along the outer seating surface 11 of the floor panel 2, and the inner extending protecting portion 3b is a cross-shaped inner seating surface 1 of the floor panel 2.
2, a partially thin connecting portion 3c and a cutting slit 7 along the boundary between each of the extended protection portions 3a and 3b and each of the polystyrene cases 3
Is formed. The extension protection portions 3a and 3b are not adhered to the back surface of the floor panel 2 and are free, and the extension protection portions 3a and 3b
a, 3b and each styrofoam case 3 are thin connecting portions 3
and are connected together by c. By cutting the thin connecting portion 3c with a blade in the direction indicated by the arrow in FIG. 3 (C), the extending protection portions 3a and 3b are separated from the styrofoam case 3.

The floor panel unit 1 is manufactured in the state shown in FIG. 3, packed, and transported to the floor construction site. At this time,
The extended protection portions 3a and 3b of the styrofoam forming the back surface of the floor panel unit 1 protect the styrofoam case 3 from an external impact force such as a rope tightening force at the time of packing. With this protection function, the packing and transportation of the floor panel unit 1 and the floor construction work are facilitated.

At the floor construction site, separation of the extension protection portions 3a and 3b is selected. In the construction of the soundproof floor of FIG.
Each of the extending protection portions 3 a and 3 b of one floor panel unit 1 is cut and separated, and the outer seating surface 11 and the inner seating surface 12 on the back surface of the floor panel 2 are placed on the joist 5. Each Styrofoam case 3 is fitted between adjacent joists 5 to form the lower surface of the soundproof floor. A soundproof plywood 6 is laid on the floor panel 2 to construct a two-layer soundproof floor.

In the case of the soundproof floor of FIG.
The sound absorbing heat insulating material 4 absorbs the sound transmitted to the floor panel 2 to enhance the sound insulation of the floor panel unit 1 as a whole. In addition, the styrofoam case 3 also has a soundproof property, and the soundproof property of the floor panel unit 1 is further enhanced. Therefore, even if the soundproofing plywood 6 has low soundproofing properties, a soundproofing floor of a two-layer structure having a good soundproofing function can be constructed by combining with the floor panel unit 1.

For example, experimental data of a floor impact sound measurement test will be described with reference to FIG. The weight impact sound graph P in FIG. 5 is created from experimental data of a soundproof floor close to a conventional structure when the sound absorbing heat insulating material 4 and the styrofoam case 3 are omitted from the floor panel unit 1 of the soundproof floor in FIG. . The weight impact sound graph Q in FIG. 5 is created from experimental data of a soundproof floor incorporating the floor panel unit 1 of the present invention in FIG.
The graph Q shown in the floor impact sound measurement test shows that the calculated value of the floor impact sound level at each center frequency is smaller than that of the graph P, and the use of the floor panel unit 1 improves the L value of the floor impact sound level by approximately 1 class. You can see that

The soundproof floor of FIG. 1 is also effective as a heat insulating floor. That is, since both the sound absorbing heat insulating material 4 and the styrofoam case 3 of the floor panel unit 1 are excellent heat insulating materials,
When the floor panel unit 1 is used for a floor panel having a floor heating structure or a floor cooling structure, floor heating or floor cooling with good thermal efficiency becomes possible.

The Styrofoam case 3 constituting the lower surface of the floor panel unit 1 has excellent water and moisture resistance.
The sound absorbing heat insulating material 4 is protected from external moisture to prevent the floor panel 2 from being deformed, such as warping, and to maintain a good appearance of the floor surface. Further, the styrofoam case 3 prevents deterioration of the heat insulating property of the sound absorbing heat insulating material 4 due to moisture, and suppresses a decrease in the heat insulating property of the entire floor panel unit 1.

In the above embodiment, the floor panel unit 1 used for the floor of a wooden house is installed on a concrete floor 9 as shown in FIG. 4, for example. In the floor structure of FIG. 4, the support leg 20 is erected on the concrete floor 9, and the outer seating surface 11 of the floor panel 2 of the floor panel unit 1 is supported by the block 22 at the upper end of the bolt 21 of the support leg 20, A soundproof plywood 6 is laid.
In this case, it is desirable that the inside extension 3b of the floor panel unit 1 be left without being cut.

The present invention is not limited to the above embodiment. For example, the rear surface of one plate panel is equally divided into two divided areas.
A styrofoam case and a sound absorbing heat insulating material may be attached to each of the divided areas.

[0025]

According to the present invention, the sound absorbing heat insulating material and the styrofoam case fixed to the back surface of the plywood or particle board floor panel absorb the sound transmitted through the inside and outside of the floor panel and improve the sound insulation performance of the entire floor panel unit. As a result, the construction of a soundproof floor having an excellent soundproofing function becomes possible without using expensive soundproofing plywood. Further, since both the sound absorbing heat insulating material and the styrofoam case are excellent heat insulating materials, the use of the floor panel unit as a floor plate having a floor heating structure enables energy-efficient floor heating with high thermal efficiency. Furthermore, since the styrofoam case, which is excellent in water and moisture resistance, protects the sound-absorbing heat-insulating material from external moisture, deformation such as warpage of the floor panel is eliminated, and the appearance of the floor surface is maintained well, and the sound insulation of the floor panel unit is improved. In addition, deterioration of heat insulation is prevented.

Further, by forming an extending protection portion on the outer periphery of the Styrofoam case so as to be separable and separable, the Styrofoam case is protected from external impact by the extending protection portion during packing and transportation of the floor panel unit. Handling of the unit at the time of packing and floor construction is simplified.

[Brief description of the drawings]

FIG. 1A is a partial plan view including a partly omitted portion of a floor provided with a floor panel unit according to an embodiment of the present invention, and FIG. 1B is a portion of the floor along a Ta-Ta line; FIG.

2A is a rear view including a partly omitted portion of the floor panel unit in FIG. 1, and FIG. 2B is an enlarged sectional view taken along line Tb-Tb.

3 (A) is a partial back view of the floor panel unit of FIG. 2 before construction, FIG. 3 (B) is an enlarged cross-sectional view taken along line Tc-Tc, and FIG. 3 (C) is a sectional view taken along line Td-Td. FIG.

FIG. 4 is a partial sectional view of a floor showing another floor structure provided with the same floor panel unit as in FIG. 1;

FIG. 5 is a graph showing test data of a floor impact sound level calculated value and a center frequency showing the test data of the floor impact sound measurement test of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor panel unit 2 Floor panel 3 Styrofoam case 3a Outside extension protection part 3b Inside extension protection part 4 Sound absorption thermal insulation

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E04F 15/02 E04F 15/20 15/20 E04C 2/50 A

Claims (3)

[Claims] 1. A floor panel made of plywood or particle board, a box-shaped styrofoam case with an open-top box having an open upper end surface adhesively fixed to a predetermined area excluding a peripheral edge of the back surface of the floor panel, A floor panel unit comprising: a sound absorbing heat insulating material such as glass wool filled between a floor panel and a foamed styrene case before the styrofoam case is fixed. 2. The floor panel is rectangular, and the back surface of the floor panel is divided into a plurality of rectangular partition areas by a vertical center line and / or a horizontal center line of the floor panel, and each of the entire peripheral edges of each partition area is divided into a plurality of rectangular partition areas. The floor panel unit according to claim 1, wherein a styrofoam case and a sound-absorbing heat insulating material are fixed to a central portion excluding the portion. 3. An outer extending protection portion extending to a portion between the outer periphery and the outer periphery of the floor panel, adjacent to an outer periphery of each of the plurality of styrofoam cases fixed to each of the partition areas on the back surface of the floor panel. 3. The floor panel unit according to claim 2, wherein the inner extending protection portion extending between the styrofoam cases is integrally formed so as to be cut off and separable from the outer periphery of each styrofoam with a blade.