JP3527443B2 - Building floor structures and flooring units - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure of a building and a floor material unit used for the floor structure.

[0002]

2. Description of the Related Art In the renovation work of an existing building,
It is not uncommon to replace the floor of a tatami-mat room with a wooden floor. When such a remodeling work is performed on a reinforced concrete building, it is usual that a joist is formed on the floor base and a floor material is laid on the joist.

When such remodeling work is performed,
Compared to the floor structure with tatami flooring, the floor structure is more likely to generate large impact noise and daily noise.Therefore, by embedding a cushioning material in the gap between joists, the sound transmitted downstairs can be reduced. The device to reduce it is made.

[0004]

However, in the above-mentioned conventional floor structure, the construction is labor-intensive and costly, and the impact sound and daily sound transmitted downstairs through the joists are effectively shielded. Therefore, there is a problem that a sufficient sound insulation effect cannot be obtained.

The present invention has been made in view of such circumstances, and it is a floor structure of a building which can simplify the construction and reduce the cost and can obtain a sufficient sound insulation effect, and the same. It is intended to provide a flooring unit used for

[0006]

The present invention is intended to achieve the above object by alternately laying a flooring unit and a connecting block having a predetermined structure on a floor base.

That is, in the floor structure of a building according to the present invention, a plurality of floor material units and connecting blocks are alternately laid on a floor base, and each of the floor material units has a buffer plate and an outer peripheral edge portion. Is a hard plate attached to the upper surface of the buffer plate so as to project from the side end surface of the buffer plate by a predetermined dimension over the entire circumference thereof, and each of the connecting blocks has substantially the same height dimension as the buffer plate. Consisting of a buffer plate, a sound insulating sheet is adhered over substantially the entire lower surface of the hard plate, and the hard plate is adhered to the buffer plate via the sound insulating sheet. A sound insulation sheet is adhered over substantially the entire upper surface of each connecting block, and the flooring unit according to the present invention has a sound insulation sheet over substantially the entire lower surface as described in claim 4. Shi And a buffer plate that is adhered to the lower surface of the hard plate via the sound insulating sheet, and the outer peripheral edge portion of the hard plate is the side of the buffer plate over the entire circumference. It is characterized in that it is formed so as to project a predetermined size from the end face.

The "buffer plate" is not particularly limited in its material as long as it is a plate-shaped member having a shock-absorbing property superior to that of the hard plate. For example, foamed polystyrene, foamed polyurethane or other foamed resin molding. A plate, a compression-molded plate such as rock wool, and a wood-based molded plate such as particle board can be used.

The "hard plate" is not particularly limited in its material as long as it is a plate-shaped member having a strength capable of withstanding the load on the floor. For example, plywood such as plywood,
Natural wood veneer can be used.

The "predetermined dimension" means that when the flooring unit and the connecting block are spread, the outer peripheral edge of the hard plate of the flooring unit reaches at least the upper surface of the connecting block, and the hard plate passes through the connecting block. If the length is such that it does not interfere with the hard plate of the adjacent flooring unit,
The specific size is not particularly limited.

[0011]

As described above, in the floor structure of a building according to the present invention, a plurality of floor material units and connecting blocks are alternately laid on a floor base, and each floor material unit is formed. Comprises a cushioning plate and a hard plate attached to the upper surface of the cushioning plate such that the outer peripheral edge of the cushioning plate projects from the side end surface of the cushioning plate by a predetermined dimension. Since it is made of a buffer plate having substantially the same height as that of the buffer plate, the following operational effects can be obtained.

That is, since a floor material is laid by alternately laying a plurality of floor material units and connecting blocks on the floor material, it is necessary to form a joist on the floor material as in the conventional case. It is possible to lay a floor material by a simple operation without doing so, and it is possible to prevent the impact sound and the life sound from being transmitted to the downstairs through the joists as in the conventional case. Moreover, since each floor material unit is arranged such that the outer peripheral edge portion of the hard plate protruding from the side end surface of the cushioning plate is substantially in close contact with the upper surface of each connecting block, a sufficient sound insulation effect is obtained. You can

As described above, according to the present invention, in the floor structure of a building, the construction can be simplified and the cost can be reduced, and a sufficient sound insulation effect can be obtained.

In the floor structure according to the present invention,
Since the conventional carpentry work of joisting is not required, not only the construction time can be shortened, but also the skill is not required, and the generation of loud work noise and wood chips during the construction can be eliminated.

Further, in the floor structure according to the present invention, since the floor material unit and the connecting block are used, the material can be easily transported as compared with the conventional floor structure which requires long joists and the like. be able to. Moreover, since the outer peripheral edge of the hard plate of the floor material unit projects from the side end surface of the buffer plate by a predetermined dimension, it is possible to effectively prevent the buffer plate from being damaged during transportation.

Further, in the floor structure according to the present invention,
Since the cushioning plate is spread over almost the entire area of the floor base, it is possible to obtain a heat insulating effect that is not only a sound insulating effect.

Moreover, in the floor structure according to the present invention,
Since a slight gap is formed between the adjacent floor material units, it is possible to prevent the hard plates of both floor material units from interfering with each other and causing a squeaking noise.

The floor structure according to the present invention is particularly suitable for a floor structure in which a floor of a room with a tatami floor is replaced with a wooden floor material in a remodeling work of an existing building made of reinforced concrete, but of course. The present invention can be applied to a floor structure of a building such as a wooden structure and a steel frame structure other than this, and can also be applied to a floor structure of a newly built building.

Further, in the floor structure according to the present invention,
A sound insulating sheet is adhered over almost the entire lower surface of the hard plate, and the sound insulating sheet is adhered over the entire upper surface of each connecting block while the sound absorbing sheet is adhered to the buffer plate with the hard plate. Since the sound insulation sheets are attached, the sound insulation sheets are laid over substantially the entire area of the floor base so as to overlap each other between the floor material unit and the connection block. As a result, sound leakage is less likely to occur, so that the sound insulation effect of the floor structure can be further enhanced.

The above-mentioned "sound insulation sheet" is not particularly limited in its material as long as it is a sheet-like member having sound insulation properties. For example, natural rubber, synthetic rubber such as SBR, NBR, SC or polyethylene-based material. A resin, a vinyl chloride resin, or the like to which a filler, an additive, or the like is appropriately added can be used.

By the way, in the above structure, some gaps are formed between the adjacent floor material units. However, if such a gap is not preferable in view of the property of the building, these floor materials are A floor board may be laid on the upper surface of the unit. By doing this,
The habitability can be enhanced and the sound insulation effect and the heat insulation effect can be enhanced. At that time, if you use natural wood such as cypress or cedar as this floorboard,
It is possible to create a more comfortable living environment. However,
For example, in the case of a floor of a storage unit or the like, it is not always necessary to lay a floor plate in the case where there is no problem even if a small gap is still formed between adjacent floor material units.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

FIG. 1 is a perspective sectional view showing a floor structure of a building according to an embodiment of the present invention, FIG. 2 is a sectional side view of a main part thereof, and FIG. 3 is a detailed III part of FIG. It is a figure.

As shown in these drawings, the floor structure according to the present embodiment is a floor structure adopted in a reinforced concrete building for a remodeling work in which the floor of a tatami-mat room is replaced with a wooden floor material. In the structure, a plurality of floor material units 12 and connecting blocks 14A and 12B are alternately laid on a floor slab 2 of a concrete slab, and a plurality of floor boards 16 are laid on the upper surface thereof.

As shown in the side view and bottom view of FIGS. 4 (a) and 4 (b), each floor material unit 12 has a hard plate 18 and a cushioning plate 20 attached via a sound insulating sheet 22. It has become.

The hard plate 18 is a rectangular veneer plate having a thickness of about 9 mm, and the outer diameter of the hard plate 18 is about 1760 m on the long side.
m, and the short side is set to about 870 mm. Buffer plate 20
Is a rectangular expanded polystyrene plate having a thickness of about 30 mm, and the outer diameter dimension thereof is set to a value that is about 100 mm smaller than the hard plate 18 on both long sides and short sides. The sound insulation sheet 22 is a sheet having a thickness of about 1 mm, which is made of a material such as a polyethylene resin to which fillers and additives such as metal powder are appropriately added, and covers the entire lower surface of the hard plate 18. It is attached to 18. And the buffer plate 20 is
The outer peripheral edge portion 1 of the hard plate 18 from each of the four side end surfaces 20a
8a is attached to the lower surface of the sound insulating sheet 22 so as to protrude by about 50 mm.

A sound insulation sheet 26 is attached to the upper surface of the buffer plate 24 of each of the connecting blocks 14A and 14B.

The cushioning plate 24, like the cushioning plate 20 of the flooring unit 12, is formed of an elongated rectangular polystyrene foam plate having a thickness of about 30 mm. The sound insulation sheet 26 is made of the same material as the sound insulation sheet 22 of the floor unit 12,
It is attached to the buffer plate 24 so as to cover the entire upper surface of the buffer plate 24.

The outer diameter dimension of each connecting block 14A, 14B is set to a different value depending on the position where it is arranged.
That is, a wide connecting block 14A having a width of about 105 mm is used at a position where the floor material units 12 are arranged on both sides, and a narrow connecting block 14B having a width of about 52.5 mm is provided at an end position of the floor base 2. It is used.

Each floor plate 16 is made of a natural cypress single plate having a length substantially the same as the entire width of the floor base 2.

FIG. 5 is an exploded perspective sectional view showing a construction procedure of the floor structure according to this embodiment.

As shown in the drawing, first, a narrow connecting block 14B is arranged along the side wall surface 2a of the floor base 2 from which the tatami mat has been removed, and the connecting block 14B is also provided.
A wide connecting block 14A is arranged on the floor base 2 at a predetermined interval in parallel with the two connecting blocks 14A,
The floor material unit 12 is disposed between 14B.

At this time, it is confirmed that the outer peripheral edge portion 18a of the hard plate 18 of the flooring unit 12 surely overlaps both the connecting blocks 14A and 14B. If this overlap is insufficient, the wide connecting block 14A may be pressed against the side wall surface 2a of the floor base 2. As a result, even if the buffer plate 20 of the floor unit 12 comes into contact with the narrow connecting block 14B, the connecting block 14B
Has a width of about 52.5 mm, which is somewhat larger than the size (about 50 mm) of the outer peripheral edge portion 18a of the hard plate 18 of the flooring unit 12 protruding from the side end surface 20a of the buffer plate 20. Is close to the side wall surface 2a of the floor base 2, but does not interfere with the side wall surface 2a.

Next, the next wide connecting block 14A is placed on the floor base 2 at a predetermined interval in parallel with the wide connecting block 14A.
Next floor material unit 12 is arranged between 14A.

At this time, it is confirmed that the outer peripheral edge portion 18a of the hard plate 18 of the flooring unit 12 surely overlaps both the connecting blocks 14A, 14A. If this overlap is insufficient, the newly provided connecting block 14A is pressed toward the side wall surface 2a of the floor base 2. As a result, the side end surfaces 2 of the cushioning plates 20 of the floor material units 12 located on both sides of the connecting block 14A that is initially disposed are provided on both side end surfaces.
Even if 0a abuts, the width of the connecting block 14A is about 105 mm, and the hard plate 18 of both floor material units 12 is
Since the outer peripheral edge portion 18a of the above is somewhat larger than the total size (about 100 mm) overhanging from the side end surface 20a of the buffer plate 20, the hard plates 18 of both floor material units 12 are close to each other but interfere with each other. There is no such thing.

In the same manner, the connecting block 14A and the floor material unit 12 are sequentially arranged on the floor base 2, and the connecting block 14 having a narrow width is provided again on the side wall surface opposite to the floor base 2.
Place B.

In this way, the floor material unit 12 and the connecting blocks 14A and 14B are spread over the entire area of the floor base 2. In this spreading operation, the floor material units 12 located on both sides of the connecting block 14A are located.
When the outer peripheral edge portion 18a of the hard plate 18 is overlapped, the sound insulation sheet 26 of the connecting block 14A and the floor material unit 12 are joined together.
As shown in FIG. 3, the sound insulating sheet 22 of the hard plate 18
The outer peripheral edge portion 18a is brought into close contact with the elastic peripheral portion 18a in a state of being elastically deformed to some extent.

After the floor material unit 12 and the connecting blocks 14A and 14B have been laid, a plurality of floor boards 16 are sequentially laid on the upper surface of the floor material unit 12 to complete the remodeling work for replacement with a wooden floor material.

FIG. 6 is a plan view showing an example in which the floor structure of this embodiment is applied to eight tatami mats.

As shown in the drawing, even in this floor structure, the renovation work can be performed by the above-mentioned construction procedure.
At that time, regarding the connecting blocks 14A and 14B arranged at both ends of the floor material unit 12 in the long side direction, the connecting blocks 14 arranged at both ends of the floor material unit 12 in the short side direction.
In many cases, it is necessary to use a short one for A and 14B.

In such a case, the connecting blocks 14A and 14B used for disposing both end portions in the short side direction may be appropriately cut and used. Connection block 14A, 14B
The cushioning plate 24 used in is a polystyrene foam plate and can be formed by extrusion foam molding, so it is extremely easy to appropriately adjust the length of the molded product.

As described above in detail, the floor structure of the building according to this embodiment has a plurality of floor material units 12 on the floor base 2.
And connecting blocks 14A and 14B are alternately laid, and each floor material unit 12 includes a hard plate 18
And the sound insulating sheet 22 adhered over the entire lower surface of the hard plate 18, and the sound insulating sheet 22 in which the outer peripheral edge portion 18a of the hard plate 18 projects from the side end surface 20a by a predetermined dimension.
The buffer plate 20 is attached to the lower surface of the buffer plate 20. Each connecting block 14A, 14B has a buffer plate 24 having substantially the same height as the buffer plate 20 and the entire upper surface of the buffer plate 24. Since the sound insulation sheet 26 is formed, the following operational effects can be obtained.

That is, since the floor material is laid by alternately laying the plurality of floor material units 12 and the connecting blocks 14A and 14B on the floor material 2, the floor material 2 is laid on the floor material 2 as in the conventional case. The flooring can be laid without the need to form a set, and it is possible to prevent the impact sound and daily life sound from being transmitted to the downstairs through the joists as before. .

Moreover, in each flooring unit 12, the sound insulating sheet 22 is in close contact with the sound insulating sheet 26 on the upper surface of each coupling block 14A, 14B at the outer peripheral edge portion 18a of the hard plate 18 protruding from the side end surface 20a of the buffer plate 20. The sound insulation sheets 22 and 26 can be stretched over substantially the entire area of the floor base 2, so that sound leakage is less likely to occur and the sound insulation effect of the floor structure can be further enhanced. it can.

As described above, according to this embodiment, the construction of the floor structure of the building can be simplified and the cost can be reduced, and a sufficient sound insulation effect can be obtained.

In the present embodiment, since the conventional carpentry work of joisting is unnecessary, not only the construction time can be shortened but also the skill is not required, and moreover, a loud working noise and wood chips during construction can be eliminated. Can be eliminated.

Further, in the present embodiment, since the floor material unit 12 and the connecting block 14 are used, the material can be easily transported as compared with the conventional floor structure which requires long joists and the like. You can Moreover, the floor material unit 12
Since the outer peripheral edge portion 18a of the hard plate 18 projects to some extent from the side end surface 20a of the buffer plate 20, it is possible to effectively prevent the buffer plate 20 from being damaged during transportation.

Further, in the present embodiment, the buffer plate 2
Since 0 and 24 are spread over almost the entire area of the floor base 2, it is possible to obtain a heat insulating effect that is only a sound insulation effect.

Further, in the present embodiment, since a small gap is formed between the adjacent floor material units 12, the hard plates 18 of both floor material units 12 interfere with each other to produce a squeaking noise. Can be prevented in advance.

Moreover, even if a small gap is formed between the adjacent floor material units 12 in this manner, since the floor board 16 is laid on the floor material units 12 in the present embodiment, the living room is occupied. There is no inconvenience in doing so, and the sound insulation effect and the heat insulation effect can be further enhanced by laying the floor board 16. Moreover, since natural cypress is used as the floor board 16, a more comfortable living environment can be created.

Further, in this embodiment, since the floor plate 2 has the floor structure in which the buffer plates 20 and 24 face each other, an appropriate portion of the lower surface of the buffer plates 20 and 24 is heat-shrinked by an iron trowel or the like. If the wiring cords are formed in the concave groove shape, the wiring cord can be arranged in the concave groove, and thus it is possible to easily deal with an OA floor or the like.

Further, in the present embodiment, for example, FIG.
In the floor base 2 shown in FIG. 1, even if the surrounding side wall surfaces 2a are not formed to be exactly parallel to each other at right angles, the floor material unit 12 and the connecting blocks 14A, 14
By adjusting the gap between the Bs, it is possible to easily absorb the fin of the shape of each side wall surface 2a.

In the present embodiment, the sound insulating sheet 22 is attached to the entire lower surface of the hard plate 18 of each floor material unit 12, and the connecting blocks 14A, 1
Sound insulation sheet 26 over the entire upper surface of the buffer plate 24 of 4B
The sound insulating sheet is provided over the entire lower surface of the hard plate 18 or the entire upper surface of the buffer plate 24 within a range in which the overlapping portion of the sound insulating sheet 22 and the sound insulating sheet 26 is secured to some extent. It is not always necessary to attach 22 or the sound insulation sheet 26.

Further, in this embodiment, the floor structure in the case of replacing the floor of the room with the tatami floor with a wooden floor material in the remodeling work of the existing building made of reinforced concrete has been described. Even in a building such as a building or a newly built building, by adopting the same floor structure as that of the present embodiment, the same operational effect as that of the present embodiment can be obtained. At that time, the sound insulation sheets 22 and 26 may be omitted when it is not necessary to pay particular attention to the sound transmission to the downstairs, such as the floor structure of the first floor. In this case, it is possible to obtain the same operational effects as those of the above-described embodiment except for the sound insulation effect, and further reduce the construction cost.

[Brief description of drawings]

FIG. 1 is a perspective sectional view showing a floor structure of a building according to an embodiment of the present invention.

FIG. 2 is a side sectional view of an essential part showing the floor structure.

FIG. 3 is a detailed view of section III in FIG.

FIG. 4 is a side view (a) and a bottom view (b) showing the flooring unit used for the floor structure as a single item.

FIG. 5 is an exploded perspective sectional view showing a construction procedure of the floor structure.

FIG. 6 is a plan view showing an example in which the floor structure is applied to 8 tatami mats.

[Explanation of symbols]

2 floor base 2a Side wall surface 12 floor materials unit 14A, 14B connection block 16 floor board 18 hard plate 18a outer peripheral portion 20, 24 buffer plate 20a side end surface 22, 26 Sound insulation sheet

─────────────────────────────────────────────────── --Continued from the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04F 15/04 E04B 1/82 E04B 1/98 E04B 5/43

Claims (3)

(57) [Claims] 1. A plurality of floor material units and connecting blocks are alternately laid on a floor base, each of the floor material units has a buffer plate and an outer peripheral edge portion on the entire circumference of the buffer plate side. A hard plate adhered to the upper surface of the buffer plate so as to project from the end face by a predetermined dimension, wherein each of the connecting blocks is a buffer plate having substantially the same height as the buffer plate, The sound insulating sheet is adhered over substantially the entire lower surface of the, and the hard plate is adhered to the buffer plate via the sound insulating sheet. The floor structure of the building, characterized in that the sheets are attached. 2. The floor structure of a building according to claim 1, wherein a floor plate made of natural wood is laid on the upper surfaces of the plurality of floor material units. 3. A hard plate having a sound insulating sheet adhered over substantially the entire lower surface thereof, and a buffer plate adhered to the lower surface of the hard plate via the sound insulating sheet, wherein an outer peripheral edge portion of the hard plate. Is formed so as to protrude from the side end surface of the buffer plate by a predetermined dimension over the entire circumference thereof.