JPH084254A - Floor panel, and living room structure using the same - Google Patents

Abstract

PURPOSE:To effectively utilize an underfloor space. CONSTITUTION:A housing box 9 is hinged in the form rotatable in the arrowed directions E, F under a flooring board 7 having a board surface 7b formed thereon to form a housing space 10, and a finished floor surface 5a is formed by use of a floor panel 6 formed in an openable and closable form by the flooring board 7. A single floor panel 16 formed into a flat board is set above a piping position 4a set in a living room 1, and a branched pipe 39 is arranged and laid in the piping position 4a. Since the housing space 10 by the housing box 9 of the floor panel 6 is arranged in the underfloor space 4 other than the piping position 4a, this can be effectively utilized as a housing space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel suitable for use in a house and a room structure using the floor panel.

[0002]

2. Description of the Related Art Conventionally, as a floor of a house, a finishing floor material is laid on a structural floor made of concrete or the like while adjusting a level so as to form a predetermined gap with the structural floor via a bundle or joists. Is formed. By providing the finishing floor material on the structural floor with a gap in this way, various characteristics required for the floor, that is, a flat floor surface, shock absorption,
It is relatively easy to achieve sound insulation, heat insulation, and the effect of preventing dew condensation in the room. Further, there is a merit that the gap between the structural floor and the finishing floor, that is, the underfloor can be used as a piping space.

[0003]

However, if a gap is provided between the structural floor and the finished floor material as described above, the portion other than the pipe used in the gap is useless as a dead space. It becomes a form to do. Then, there is a drawback that the effective volume of the living room space is reduced by the gap. Particularly, in a high-rise house, the ceiling height of the first and first floors is limited, and thus it is very wasteful to generate a dead space that is invisible to the eyes in the height direction. Of course, if the method of laying the finishing floor material directly on the structural floor is used, the space volume of the living room increases, but this method does not make various efforts to the material of the finishing floor material and the construction method, etc. Because it is not possible to obtain the cord characteristics as
It is not very versatile and has the disadvantage of being unable to pass piping under the floor. Therefore, in view of the above circumstances, the present invention provides a gap between the structural floor and the finished floor material,
The present invention provides a floor panel and a living room structure using the floor panel so that the gap, that is, the underfloor can be effectively used.

[0004]

That is, the present invention has a plate body (7) having a unit floor surface (7b), and a plurality of plate bodies (7) are arranged in two horizontal directions orthogonal to each other. Thus, in the floor panel (6) capable of forming the finished floor surface (5a) by the unit floor surface (7b) of the plate body (7), the storage member (9) is provided below the plate body (7), A storage space (10) is formed in the storage member (9) by the plate body (7) so as to be openable and closable. In the living room structure of the present invention, the underfloor gap maintaining member (3) is installed on the structural floor (2) of the living room (1), and the structural floor (2) of the living room (1) is installed.
The floor panel (6) is installed on the upper side in a form of being supported by the underfloor gap maintaining member (3), and the finished floor surface (5a) is placed above the structural floor (2) by the floor panel (6). L1) is formed and formed in the horizontal direction. In the living room structure of the present invention, the underfloor gap maintaining member (3) is installed on the structural floor (2) of the living room (1), and the facility area (4a) is set on the structural floor (2). A planographic flooring material (16) formed in a planographic form on the structural floor (2) located in the equipment area (4a) is installed so as to be supported by the underfloor gap maintaining member (3), The floor panel (6) is installed on the structural floor (2) of the living room (1) other than that set to (4a) so that the underfloor gap maintaining member (3) supports the planographic flooring material. (16) and the floor panel (6) form a finished floor surface (5a) in the horizontal direction above the structural floor (2) (L1). Further, in the living room structure of the present invention, the facility area (4a) is set and arranged in a peripheral portion (P1) in the living room (1). The numbers in parentheses () indicate the corresponding elements in the drawings for convenience, and therefore the present description is not limited to the description in the drawings. The same applies to the following action columns.

[0005]

With the above-mentioned structure, the present invention functions so that the storage space (10) by the storage member (9) is arranged below the finishing floor surface (5a) formed by the plate body (7). Further, in the living room structure of the present invention, it is only necessary to support the floor panel (6) on the underfloor gap maintaining member (3) and the finished floor surface (5
It acts so that the storage space (10) can be arranged below a). In the living room structure of the present invention, the equipment area (4
The floor panel (6) acts to arrange the storage space (10) on the structural floor (2) of the living room (1) other than that set in a). Further, in the living room structure of the present invention, the storage space (10) for the floor panel (6) is the central portion (P) of the living room (1).
It works as if it were placed in 2).

[0006]

1 is a view showing an example of a living room structure using an embodiment of a floor panel according to the present invention, FIG. 2 is a view showing a state in which a storage box portion of the floor panel shown in FIG. 1 is opened, and FIG. FIG. 3 is a plan view showing an example of a living room structure using the floor panel according to the present invention.

In a living room 1 such as a house, as shown in FIG.
A slab 2 that is a structural floor made of concrete or the like is provided in a lithographic form, and a plurality of joist metal fittings 3 whose heights are freely adjustable are provided on the slab 2, as shown by arrows A, B and C in FIG. It is installed as an underfloor gap maintaining member in such a manner that a predetermined pitch is formed in each of two horizontal orthogonal directions shown in the D direction. A finishing floor 5 and a slab 2 are provided on the plurality of joists.
Above the upper structural floor 2a (about 150 to 200 in the embodiment)
mm), the floor surface 5a that is smooth in the horizontal direction is formed as a finishing floor surface. Therefore, a plurality of joists 3 are provided between the slab 2 and the finishing floor 5. The underfloor space 4 in which it is located is formed. At a predetermined position of the underfloor space 4, a piping position 4a is set as a facility area set on the slab 2 in a form extending in the directions of arrows C and D in FIG.
A branch pipe 39 for water supply and drainage is laid in a.

As shown in FIG. 1, the floor surface 5a of the finishing floor 5 has a quadrangular planar shape, and is shown in the directions A, B and C, D. The floor panel 6 is a floor panel according to the present invention, and a plurality of plate surfaces 7b, 16b of a single floor panel 16 which is a lithographic flooring material are arranged in parallel in two horizontal directions perpendicular to each other. The floor panels 6 and the single floor panels 16 are supported at the four corners thereof by the joist metal fittings 3 installed on the slab 2 as described above. (In other words, one joist metal 3 carries and supports four floor panels 6 or single floor panels 16.)

As shown in FIG. 1, the single floor panel 16 has lengths L1 and L1 in the directions of arrows A and B and in the directions of arrows C and D, respectively.
L2 (about 400 to 500 mm in the embodiment) is formed in a lithographic shape, and the single floor panel 16 has the pipe position 4 described above.
On the slab 2 at the position set to a, the four corners thereof are supported by the joist metal 3, and the surface side thereof is installed in accordance with the level position L1.

On the other hand, each floor panel 6 is, as shown in FIG. 1, the rest of the finishing floor 5 other than the single floor panel 16 laid (that is, the living room 1 other than that set at the piping position 4a).
The floor panel 6 is installed on the slab 2 of FIG.
As shown in FIG. 2, the floor panel 6 has a flooring plate 7 which is a plate body having a plate surface 7b which is a unit floor surface for forming the floor surface 5a.
By arranging a plurality of them in two horizontal directions orthogonal to each other, the floor surface 5a can be formed as a finish floor surface by the plate surface 7b. (That is, only the flooring plates 7 of the floor panel 6 can be arranged in two horizontal directions to form the floor surface 5a of the living room 1 in the horizontal direction.)

Below the flooring plate 7 of each floor panel 6, as shown in FIG. 2, a storage box 9 formed in the shape of a box as a storage member is provided on the flooring plate 7 with arrows E and F.
The storage box 9 is hingedly connected to the storage box 9 in such a manner that it can be rotated in any direction, and a storage space 10 formed into a space having a predetermined capacity is opened and closed by the flooring plate 7 in the storage box 9. Is formed by. In addition, a flange portion 9a, which is mounted and supported by the joist metal 3, is provided at an upper end portion of the storage box 9 and a storage space 10 of the storage box 9 is provided.
The storage box 9 and the flooring plate 7 are provided in a rectangular frame shape so as to project outward from the portion forming the
2 rotates relative to each other in the directions of arrows E and F in FIG. 2 via some hinges (not shown) attached to the plate support 9b on one side of the flange 9a shown on the right side in FIG. It is pivotally attached in a free form.

The flooring plate 7 of each floor panel 6
As shown in FIG. 2, is formed in a flat plate shape having lengths L1 and L2 that match the vertical and horizontal lengths L1 and L2 of the single floor panel 16 described above, and is formed in the storage box 9 of the flooring plate 7. A slight depression 7a is formed on the opposite side to the pivotally attached side. As shown in FIG. 1, the flooring plate 7 opens the storage space 10 in the state of being opened in the direction of arrow E in FIG. 2 with respect to the plate supporting portion 9b and is in the state of being closed in the direction of arrow F in FIG. The plate surface 7b is flush with the plate surface 16b of the single floor panel 16 at the level position L1 so that the storage space 10 can be closed. Therefore, on the floor surface 5a of the finishing floor 5, the living room space 11 sandwiches the finishing floor 5 and the underfloor space by the planographic single floor panel 16 and the flooring plate 7 in the closed state as described above. It is formed for each living room 1 in a form corresponding to the number 4.

Since the living room 1 of the house and the floor portion thereof have the above-mentioned structure, when constructing and finishing the living room 1, a predetermined pitch (that is, the floor panel 6 and the single floor) is set on the slab 2. A predetermined number of joist metal fittings 3 are installed while adjusting the height at a pitch that matches the vertical and horizontal lengths L1 and L2 of the panel 16. Then, a level position L1 at which the floor surface 5a of the finishing floor 5 is to be formed is formed on the plurality of joists 3 with a predetermined height from the structural floor surface 2a on the slab 2. That is, the installation of the plurality of joist metal fittings 3 sets a region to be the underfloor space 4 between the level position L1 on the slab 2.

Therefore, in the underfloor space 4 in which the formation position is set in this way, a pipe position 4a to be an equipment region on the slab 2 is set, and a branch pipe 39 for water supply and drainage is appropriately laid in the pipe position 4a. To do. (Note that the order of laying the branch pipe 39 and installing the joist metal 3 is arbitrary.) In this way, next, the finishing floor 5 is formed at the level position L1. To this end, a plurality of joists 3 are used, and the single floor panel 16 is provided on the slab 2 located at the piping position 4a.
A floor panel 6 on the slab 2 located in a region other than the piping position 4a, and the floor panel 6 and the single floor panel 16 at the level position L1 above the structural floor surface 2a. Laying while adjusting the level so that 5a can be formed. In addition, when the floor panel is installed, the single floor panel 16 directly supports the four corners of the floor panel by screwing it to the four joist metal fittings 3.
The four corners of the flange 9a formed on the
Then, it is mounted and supported on the flooring metal fitting 3 by screwing (that is, the flooring plate 7 side is not fixed).

Thus, the floor panel 6 and the single floor panel 16
When the floor surface 5a of the finishing floor 5 is formed above the slab 2 by the plate surfaces 7b and 16b by arranging in the horizontal two directions shown in the arrows A, B and C, D directions in FIG.
Below the finishing floor 5, an underfloor space 4 is formed between the finishing floor 5 and the structural floor surface 2a of the slab 2. Then, at the piping position 4a in the underfloor space 4, as described above, the branch pipe 39
While the storage box 9 of the floor panel 6 is arranged in the remaining space under the floor 4 other than the piping position 4a. As a result, the piping position 4a
The storage space 1 in the storage box 9 is provided in the underfloor space 4 other than
0 is placed. In this way, by constructing the floor surface 5a of the finishing floor 5 above the slab 2 so as to form the underfloor space 4 between the two 2 and 5, the shock absorbing property, the sound insulating property, and the heat insulating effect of the finishing floor 5 can be obtained. And other characteristics reach a predetermined level, and a dew condensation preventing effect can be obtained. Furthermore, joist hardware 3
Is installed at the four corners of the floor panel 6 or the single floor panel 16, and as a result, the finishing floor 5 has a structure in which the floor supports are closely packed, which is more than that of the conventional double floor. Can retain high strength.

Therefore, the resident of the living room 1 has the floor panels 6
By opening the flooring plate 7 of the storage box 9 in the direction of arrow E with respect to the storage box 9, the storage space 10 of the storage box 9 thus installed in the underfloor space 4 is converted into the living room space 1 on the finishing floor 5.
It can be easily connected to 1 and used for storing daily necessities. Therefore, in the underfloor space 4, the piping position 4a
Other parts can be effectively used as a storage space. As a result, the user of the living room 1 can effectively use the underfloor space 4 in addition to the living room space 11,
The effective volume available in the living room 1 is expanded. In addition,
If the floor panel 6 and the single floor panel 16 are colored differently, the color of the floor surface 5a has a shape that indicates the use of the underfloor space 4 that cannot be seen under the normal usage condition of the living room. While in the living space 11, the storage space 1
It is convenient because you can know where 0 is.

By the way, when the floor panel 6 capable of effectively utilizing the underfloor space 4 is used, as shown in FIG.
By reflecting the difference between the equipment space such as the piping position 4a and the like in the underfloor space 4 and the storage space on the floor surface 5a, the expression can be enriched, and the effective use of the space in the living room 1 and the improvement of living comfort can be achieved. I can. That is, in the living room 1 shown in FIG. 3, the piping position 4a is set on the structural floor 2 located in the peripheral portion P1 in the living room 1, and therefore the finishing floor 5 in the peripheral portion P1 is a single floor. It is formed by the panel 16. On the other hand, the floor panel 6 is laid on the portion other than the peripheral portion P1, that is, on the slab 2 in the central portion P2 so as not to be set at the piping position 4a.
Then, the storage space 10 by the storage box 9 of the floor panel 6 is arranged in the underfloor space 4 other than the piping position 4a. In this way, if the piping position 4a is arranged in the peripheral portion P1, the occupant of the living room 1 usually installs the furniture along the wall surface, that is, on the peripheral portion P1, while the central portion P2 is open. There is a habit of keeping. For this reason, the peripheral part P1 which is under furniture and cannot be used is used as an equipment space, and the storage space 10 of the storage box 9 is arranged in the underfloor space 4 of the central part P2 where the flooring board 7 can be easily lifted. You can Therefore, there is no concern of forming the storage space 10 that cannot be opened and closed, and it is possible to effectively use the space of the living room 1 more efficiently.

The floor panel 6 and the single floor panel 16 can be combined, that is, the parallel installation method can be arbitrarily replaced to set the equipment position where the branch pipe 39 or the like is to be installed and design the floor surface 5a. The pattern can be changed in various ways. At this time, no matter how the floor panel 6 and the single floor panel 16 are arranged side by side, the floor panel 6 and the single floor panel 16 form a horizontally flush floor surface 5a, which impairs the aesthetic appearance. Never. That is, in the present invention, by simply installing the floor panel 6 above the slab 2 by the same simple procedure as laying the single floor panel 16, the open / close operation can be performed at any desired position in the open underfloor space 4. Since a free storage space 10 can be formed and arranged,
The position and size of the storage space 10 can be easily selected according to the usage pattern of the living room 1. Therefore, it is highly versatile. In this way, the underfloor space 4 is formed to secure the piping characteristics and the characteristics of the floor, and the underfloor space 4 other than the piping space is effectively used as a storage space, thereby increasing the effective space available in the living room 1. This can be performed without impairing the aesthetics of the living room 1.

In the above embodiment, the floor panel 6 has a flooring plate 7 having a plate surface 7b.
However, the material and shape of the plate are arbitrary. Further, since it is sufficient for the plate body to open and close the storage space 10, the plate body and the storage member such as the storage box 9 do not necessarily have to be hinged via the plate support portion 9b. Further, the shape of the storage space formed in the storage member such as the storage box 9 is arbitrary as long as it can be accommodated in the underfloor space 4. The shape of the floor panel is not limited to the rectangular shape. For example, if the floor panel 6 shown in FIG. It is also possible to store long items such as skis. Of course, the floor panel and the storage space may have other shapes. Further, in the embodiment, the floor panel 6
Has described an example in which the four corners of the flange portion 9a formed in the storage box 9 can be freely installed on the slab 2 so that the four joist metal pieces 3 are supported by the floor panel 6 It is also possible that a leg part whose level is adjustable is attached in advance so that it can be installed on the structural floor without needing an underfloor gap maintaining member via the leg part.

In the embodiment, the structural floor of the living room 1 is the slab 2, but the structural floor refers to the floor formed by the structural frame excluding the finishing material.
Therefore, the structure is not limited to the concrete slab. Further, in the embodiment, an example in which the joist metal 3 capable of mounting and supporting the four corners of the floor panel 6 and the single floor panel 16 is used as the underfloor gap maintaining member has been described. Any structure may be used as long as the underfloor space 4 can be formed between the bottom surface 5a of the finishing floor 5 and the structural floor surface 2a. Of course, the bundle or joist may be installed while leveling out, and the floor panel 6 or the single floor panel 16 may be installed thereon. Further, in the embodiment, the single floor panel 1 is used as a planographic floor material on the structural floor set in the equipment area such as the piping position 4a.
6 has been installed, and the floor panel 6 has been installed at all locations on the structural floor other than this, the planographic flooring material such as the single floor panel 16 and the installation state of the floor panel 6 which is the floor panel according to the present invention. Is not limited to this. That is, finishing floor 5
The use ratio of the floor panel 6 in the above may be arbitrarily changed according to the necessity of the storage space, the design of the floor, other room design conditions, and the like.

[0021]

As described above, according to the present invention, a plate body such as a flooring plate 7 having a unit floor surface such as the plate surface 7b is formed, and the plate bodies are arranged in two horizontal directions orthogonal to each other. In the floor panel 6 capable of forming a finished floor surface such as the floor surface 5a by the unit floor surface of the plate body by arranging them individually, a storage member such as a storage box 9 is provided below the plate body, and Since the floor space 6 is configured by forming the storage space 10 in the form of the plate body that can be opened and closed, the storage space 10 can be arranged by the storage member below the finished floor surface formed by the plate body. . Therefore, only by installing floor panels on the structural floor such as the slab 2 in the form of arranging the plate bodies in two horizontal directions orthogonal to each other through the joist metal fittings 3 or the like, a finished floor surface is formed above the structural floor. The underfloor space 4 under the finished floor surface
Can be formed as a gap. For this reason, it is not necessary to devise various ideas for the material and construction method of the finishing floor material, as in the case of laying the finishing floor material directly on the structural floor,
It is relatively easy to set the floor characteristics such as flat floor surface, shock absorption, sound insulation, heat insulation, and dew condensation prevention effect in the room to a predetermined level. In the underfloor space 4, a storage space 10 formed by a storage member can be arranged in a freely openable / closable manner by a plate, so that the storage space can be used by simply opening the plate as needed. That is, the underfloor space 4 can be effectively used as the storage space 10. At this time, storage items can be easily taken in and out simply by opening and closing the plate. Further, the storage space 10 is not visible if the plate is closed, and the unit floor surface of the closed plate can form a finished floor surface in the horizontal direction by arranging a plurality of unit floor surfaces. Excellent in. Therefore, in the living room 1 in which the finished floor surface 5a is formed by the floor panel 6, the effective volume available in the living room 1 is increased by 10 minutes of the storage space of the underfloor space 4. Thus, the floor panel 6 according to the present invention
Since it is possible to avoid the occurrence of dead space that is not visible to the human eye in the height direction, use the floor panel 6 when the ceiling height of the first floor and the first floor is limited in a high-rise house. If so, the effect can be remarkably utilized.

In the living room structure of the present invention, an underfloor gap holding member such as a joist metal fitting 3 is installed on the structural floor such as the slab 2 of the living room 1, and the floor panel 6 is provided on the structural floor of the living room 1. The floor panel 6 is installed so as to be supported by a gap holding member, and the finished floor surface such as the floor surface 5a is horizontally formed above the level position L1 of the structural floor 2 by the floor panel 6, so that The storage space 10 can be arranged below the finishing floor surface only by supporting the floor panel 6 by the gap holding member. Therefore, floor construction can be easily performed so that a space such as the underfloor space 4 is formed between the structural floor and the finished floor surface. By arranging the storage space 10 by the floor panel in the underfloor space thus formed, as described above, the underfloor space is effectively utilized as a storage space without becoming a dead space. You can

Further, in the living room structure of the present invention, an underfloor gap holding member such as a joist metal fitting 3 is installed on the structural floor such as the slab 2 of the living room 1, and a facility area such as a piping position 4a is set on the structural floor. Then, a lithographic flooring material such as a single floor panel 16 formed in a lithographic form on the structural floor located in the equipment area is installed in such a manner as to be supported by the underfloor gap holding member, and other than those set in the equipment area. The floor panel 6 is installed on the structural floor of the living room 1 so as to be supported by the underfloor gap maintaining member,
When the finishing floor surface such as the floor surface 5a is horizontally formed above the level position L1 and the like of the structural floor by the planographic flooring and the floor panel 6, the living room 1 other than that set in the equipment area 1 The storage space 10 by the floor panel 6 can be arranged on the structural floor of FIG. That is, the underfloor space 4 is formed between the structural floor and the lower side of the finished floor surface formed in the horizontal direction only by installing the planographic floor material and the floor panel 6 on the underfloor gap maintaining member. Can be done easily.
In the floor construction method in which the underfloor space 4 is formed between the structural floor and the finished floor surface as described above, the floor characteristics required for the finished floor can reach the predetermined level relatively easily, as described above. Then, in the portion of the underfloor space 4 located in the equipment region, the plank floor material is installed on the structural floor located in the equipment region, so that the underfloor space 4 remains as a void, Equipment such as 39 can be installed freely. Therefore, the pipe can be passed under the floor. Further, since the underfloor space 4 other than the equipment area can be effectively used as the storage space 10 by the floor panel 6, the underfloor space 4 other than the equipment area does not become a dead space, and the storage space 10 minutes Only the effective volume available in the living room 1 will increase.

Further, in the living room structure of the present invention, if the equipment region such as the piping position 4a is set so as to be arranged in the peripheral portion P1 in the living room 1, the storage space 10 of the floor panel 6 is set in the living room 1 Can be arranged in the central portion P2 of the. Then, the occupant of the living room 1 usually has a habit of installing the furniture along the wall surface, that is, in the peripheral portion P1, while opening the middle portion, that is, the central portion P2 of the living room 1. Therefore,
In this way, the peripheral portion P1 under the furniture, which cannot be easily used under the floor, is used as equipment space, and the central portion P2 where the floor surface is open, is stored under the floor using the floor panel 6. If the space 10 is arranged, the central portion P
In 2, it is possible to easily lift the unit floor surface, that is, the plate material to take in and out the stored items. Therefore, there is no concern of forming the storage space 10 that cannot be opened and closed, and it is possible to effectively use the space of the living room 1 more efficiently.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a living room structure using an embodiment of a floor panel according to the present invention.

FIG. 2 is a diagram showing a state in which a storage box portion of the floor panel shown in FIG. 1 is opened.

FIG. 3 is a plan view showing an example of a living room structure using a floor panel according to the present invention.

[Explanation of symbols]

 1 …… Room 2 …… Structured floor (slab) 3 …… Underfloor gap retaining member (joint metal) 4a …… Facilities area (piping position) 5a …… Finishing floor (floor) 6 …… Floor panel 7 …… Plate (flooring plate) 7b …… Unit floor surface (plate surface) 9 …… Storage member (storage box) 10 …… Storage space 16 …… Plant floor material (single floor panel) L1 …… above the structural floor (level) Position) P1 ... Peripheral area

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Ryoichi Misawa 3-10-1 Iwamotocho, Chiyoda-ku, Tokyo Mitsui Construction Co., Ltd.

Claims (4)

[Claims] 1. A floor having a plate body having a unit floor surface formed thereon, and a plurality of the plate bodies being arranged in two horizontal directions orthogonal to each other to form a finished floor surface of the unit floor surface of the plate body. In the panel, the floor panel is configured such that a storage member is provided below the plate body, and a storage space is formed in the storage member by the plate body so as to be openable and closable. 2. An underfloor gap maintaining member is installed on the structural floor of the living room, and the floor panel according to claim 1 is installed on the structural floor of the living room so as to be supported by the underfloor clearance maintaining member. A living room structure in which a finishing floor surface is formed in a horizontal direction above the structural floor. 3. An underfloor gap maintaining member is installed on a structural floor of a living room, an equipment area is set on the structural floor, and a planographic flooring material formed in a planographic form on the structural floor located in the equipment area is provided. The floor panel according to claim 1 is installed in a form supported by the underfloor gap maintaining member, and the floor panel according to claim 1 is installed in a form supported by the underfloor gap maintaining member on a structural floor of the living room other than the facility area, A finished floor surface is formed by the planographic flooring material and the floor panel in a horizontal direction above the structural floor,
Living room structure. 4. The living room structure according to claim 3, wherein the facility area is set and arranged in a peripheral portion of the living room.