JP4766464B2 - Floor structure - Google Patents

Description

  The present invention relates to a floor structure, and more particularly to a floor structure in which a tatami is laid on a part of a floor base and a plate is laid on the remaining part.

  In this specification, “plate tatami” refers to a plate laid in combination with tatami mats regardless of the size.

  As a Japanese-style floor structure, one in which a tatami mat is laid on a part of a floor base and a plate tatami is laid on the remaining part is known (for example, see Patent Document 1 below).

  Conventionally, plate tatami has often been used as a space for placing furniture such as chests. However, in recent years, floor designs that combine borderless tatami mats such as Ryukyu tatami mats and plate tatami mats have come to be favored. There are also many layouts such as walking.

However, conventional plate tatami mats do not have soundproofing performance, and particularly in apartment houses such as apartments, there is a high demand for soundproofing performance in both cases of new construction and renovation.
Moreover, since the conventional plate tatami was normally comprised by the direct pasting flooring, it could not be constructed unless it was by a craftsman such as a carpenter.
JP 2002-89018 A

  The object of the present invention is to provide soundproofing performance to the portion of the plate tatami so that it can be applied to a housing complex, especially in a floor structure using a combination of tatami and plate tatami mats, and facilitate the construction of the plate tatami. There is to do.

  In the floor structure according to the present invention, a tatami mat is laid in a first area that occupies a part on a floor foundation, and a tatami mat is laid in a second area that occupies the remainder on the floor foundation. A mat and a finishing material bonded to the upper surface of the soundproof mat are provided.

In the above floor structure, the plate mat is provided with the soundproof mat and the finishing material joined to the upper surface thereof, so that an excellent soundproof effect can be obtained by the soundproof mat. Moreover, in the case of the above floor structure, the plate mat is divided into two layers, a soundproof mat and a finishing material, so that the thickness of each material is reduced and the cutting process is facilitated accordingly. In addition, the two can be easily joined using, for example, a double-sided adhesive tape.
Therefore, according to the floor structure of the present invention, even if the layout occupied by the plate is large, the sound generated when walking on the plate is difficult to be transmitted downstairs, and also in apartment buildings such as apartments. Applicable. Further, in the case of the floor structure according to the present invention, the construction of the plate tatami is simpler than the prior art, and therefore, construction by a person other than a carpenter such as a floor craftsman or a cross craftsman is also possible.

  In the floor structure according to the present invention, the joist is arranged and fixed so as to be in contact with the tatami mat on the contour portion adjacent to the first zone in the second zone, and a recess for releasing the joist is provided as a soundproof mat. It is preferable that it is formed on the lower surface.

  According to the above configuration, the lateral displacement of the tatami is prevented by the joist. Further, the joist can also play a role of positioning when laying a tatami mat.

  In the floor structure according to the present invention, more preferably, the joist is arranged and fixed at least in a portion facing the entrance of the room among the remaining contour portions excluding the contour portion adjacent to the first zone in the second zone. In addition, a recess for allowing the joist to escape is formed on the lower surface of the soundproof mat.

If the joist is arranged and fixed also in the above-mentioned part, the subduction of the tatami mat accompanying walking is thereby effectively prevented.
The joists are usually placed and fixed so as to be in contact with the rising surface from the edge of the floor base, that is, the side surface or the wall surface of the opening frame material such as a sill or fence, but are fixed and arranged slightly apart from the rising surface. You may make it do.
It should be noted that the joist for the purpose of preventing the sinking of the plate is to be disposed at least in the portion facing the entrance of the room among the remaining contour portions excluding the contour portion adjacent to the first area. Further, it is more preferable to arrange them at other places where the walking frequency is relatively high, that is, for example, a portion facing indentation or between floors.

  In the floor structure according to the present invention, the soundproof mat preferably includes a base material having a plurality of grooves on the lower surface and a surface material joined to the upper surface of the base material.

  If the soundproof mat has the structure as described above, the soundproofing performance is obtained by the base material, and the base material is subjected to walking load or the like by the surface material joined to the upper surface of the base material, so that the base material is the bottom portion of the groove. It is possible to avoid the situation of bending or cracking.

  As a more preferred embodiment, the soundproof mat is further provided with a cushion material joined to the lower surface of the base material and a thickness adjusting material joined to the lower surface of the cushion material.

  If the soundproof mat has a four-layer structure as described above, a more excellent soundproofing performance can be obtained by the presence of the cushion material in addition to the base material. Moreover, since there is a thickness adjusting material in the lowermost layer, the thickness of the plate can be easily adjusted according to the thickness of the tatami by making the thickness appropriate.

  In the floor structure according to the present invention, the thickness of the plate is preferably smaller than the thickness of the tatami.

  If the thickness of both is set as described above, the upper surface level of the tatami mat is lower than the upper surface level of the tatami mat, and the end surface of the finishing material of the tatami mat is not exposed, so the end surface treatment of the finishing material is not required, Moreover, it is not necessary to use a parting material between the tatami mat and the plate mat. The thickness of the plate is usually about 1-2 mm smaller than the thickness of the tatami.

For example, in the case where the soundproof mat has a two-layer structure in which the base material and the surface material are used, the concave portion for releasing the joist is formed by cutting out a required portion on the lower surface side of the base material by a required thickness. .
In addition, when the soundproof mat has a four-layer structure composed of a base material, a surface material, a cushioning material, and a thickness adjusting material, usually by cutting out the required portions of the cushioning material and the thickness adjusting material by the total thickness, The recess is formed.

  In the floor structure according to the present invention, it is preferable that a gap is formed between the soundproof mat and its periphery to prevent the two from rubbing.

If there is a gap between the soundproof mat and its surroundings (specifically, tatami mats, the rising surface from the edge of the floor base, or other adjacent soundproof mats), the two will rub against each other during walking, etc. The situation is avoided.
The gap is preferably about 2 to 10 mm. If the gap is less than 2 mm, the generation of rubbing noise may not be reliably prevented. On the other hand, if the clearance exceeds 10 mm, the finishing material located above the clearance may be broken or cracked when subjected to a walking load or the like.

  In the floor structure according to the present invention, a soundproof mat having a second area in an I-shape, an L-shape, a U-shape or a B-shape as viewed from above, and having a width slightly smaller than the width of the second area, It may be arranged along the length direction of the area.

  In the above case, since only one soundproof mat has to be arranged in the width direction of the second area, the construction is facilitated as much, and the generation of noise by rubbing the soundproof mats during walking can be reduced. it can. Depending on the planar shape and dimensions of the second area, a plurality of soundproof mats are usually used.

  In the above case, a plurality of finishing materials having a width and length smaller than the width and length of the soundproof mat are disposed on the upper surface of the soundproof mat so as to be along the length direction of the second area, and are bonded on both sides. It is preferable to be joined by a tape.

  According to the above, since the finishing material having a size smaller than that of the soundproofing mat is bonded to the upper surface of the soundproofing mat using the double-sided adhesive tape, the construction is extremely simple, and for example, a person other than a carpenter can perform the work.

  In the above, it is preferable that the joint between the soundproof mats and the joint between the finishing materials are shifted from each other.

By shifting the joint between the two in this way, it is possible to avoid a situation in which a step is generated on the surface of the plate at the time of walking.
The joint between the soundproof mats and the joint between the finishing materials are preferably separated by 40 mm or more.

  Next, an embodiment of the present invention will be described with reference to FIGS.

  1 and 2 show a floor structure according to the present invention. In this floor structure, a tatami mat (2) is laid in the first area (11) occupying a part of the floor foundation (10), and a plate tatami mat in the second area (12) occupying the remainder of the floor foundation (10). (3) is laid. The plate mat (3) includes a soundproof mat (31) and a finishing material (32) joined to the upper surface of the soundproof mat (31).

As shown in FIG. 1, the floor base (10) is substantially square when viewed from the plane, and the square part located in the center is the first area (11), and the square-shaped part surrounding the periphery is the first. It is made into the area (12) of 2 (refer FIGS. 3-5).
The shape and arrangement of both sections (11) and (12) are not necessarily limited to the above, but as described above, the plate (3) is arranged in the four sides of the area of the tatami (2), and the plate (3 When the area occupied by) is large, the present invention can be suitably used.
The floor foundation (10) is made of, for example, a concrete slab.

  The tatami mat (2) may be an edged tatami mat such as the Ryukyu tatami mat as shown in FIG. 1 or may be a tatami mat with a rim, usually directly in the first area (11) of the floor foundation (10). Laid. The tatami mat (2) has a thickness of about 25 mm, but a tatami mat having a thickness other than that (about 15 to 60 mm) may be used.

In the second zone (12), the border (1A) is adjacent to the first zone (11), that is, the inner radius of the second zone (12) is in contact with the tatami mat (2). The placement is fixed. Further, in the second section (12), the remaining contour portion excluding the contour section adjacent to the first section (11), that is, the entrance / exit of the room in the outer periphery of the second section (12). Also at the place where it faces, the floor joist (4B) is arranged and fixed so as to be in contact with the surface (13) rising from the edge of the floor base (10) (the side surface of the opening frame material such as a sill or a wall). The former joist (4A) prevents horizontal displacement of the tatami mat (2) and is used for positioning when laying the tatami mat (2). In the latter case, the joist (4B) prevents the sinking of the plate (3) during walking.
As the jokita (4A) (4B), usually wood such as squarewood is used. The width of the jokita (4A) (4B) is about 30 mm. If the width of the joist is too small, cracking may occur during nailing or the nail may not be sufficiently held. On the other hand, if the width is too large, the soundproof performance may be impaired. Made. The thickness of the thick joists (4A) and (4B) is substantially equal to the sum of the thickness of the cushion material (313) of the soundproof mat (31) and the thickness of the thickness adjusting material (314), which will be described later. For fixing the joists (4A) and (4B) to the floor base (10) surface, an adhesive and a concrete nail are usually used in combination.

The soundproof mat (31) includes a base material (311) having a plurality of grooves (311a) on the lower surface, a surface material (312) bonded to the upper surface of the base material (311), and a lower surface of the base material (311). A joined cushion material (313) and a thickness adjusting material (314) joined to the lower surface of the cushion material (313) are provided. On the lower surface of the soundproof mat (31), a recess (31a) for allowing the joist (4A) (4B) to escape is formed. The recess (31a) is formed by cutting out the required portions of the cushion material (313) and the thickness adjusting material (314) by the total thickness.
The width of the soundproof mat (31) should be such that the width direction of the second area (12) can be covered with a single sheet, which makes construction easier and avoids the generation of rubbing noise during walking. This is preferable (see FIG. 4). On the other hand, the longitudinal length of the soundproof mat (31) along the length direction of the second section (12) is appropriately set in consideration of the yield of the material and the like. The thickness of the soundproof mat (31) is about 21 mm, but is not limited thereto, and may be set as appropriate within a range of about 10 to 60 mm according to the thickness of the tatami (2). In actual construction, for example, a plurality of soundproof mats (31) having a width of 604 mm, a length of 1816 mm, and a thickness of 21 mm are prepared, and these are used by appropriately cutting them at a construction site.

The base material (311) is formed of a foamed resin sheet, a wooden board, or the like. Examples of the foamed resin sheet include a foamed polystyrene sheet, a foamed polyurethane sheet, a foamed polyethylene sheet, and a foamed polypropylene sheet. In the case of an expanded polystyrene sheet, those having an expansion ratio of preferably 15 times or less, more preferably 10 times or less are used. Also, in the case of a foamed polyethylene sheet or a foamed polypropylene sheet, a low foaming material having an expansion ratio of preferably 10 times or less, more preferably 5 times or less is used. Examples of the wood board include plywood, PB (particle board), and MDF (medium fiber board).
The thickness of the base material (311) is about 12 mm. However, it is not limited to the above thickness, and may be set appropriately within a range where soundproof performance is obtained (for example, about 6 to 20 mm).

The surface material (312) is formed of a resin sheet such as a polystyrene sheet, a polyethylene terephthalate sheet, a polyethylene sheet, or a polypropylene sheet. In addition, a film is also contained in the sheet here. The resin sheet is preferably a low-foamed sheet, more preferably a non-foamed sheet, in consideration of the adhesiveness when the double-sided adhesive tape is used for bonding to the finishing material (32) as described later. .
The thickness of the surface material (312) is about 0.3 mm. The thickness of the surface material (312) is not limited to the above, but if it is too small, the base material (311) is likely to be cracked. On the other hand, if it is too large, the soundproof performance may be deteriorated. It is preferable to set within a range.

The cushion material (313) may be formed of a foamed resin sheet such as a foamed polyurethane sheet, a foamed polyethylene sheet, or a foamed polypropylene sheet in addition to the nonwoven fabric such as polyester fiber. This cushion material (313) also contributes to the improvement of the soundproofing performance together with the base material (311).
The thickness of the cushion material (313) is about 3 mm. In the case of cushion material (313), if the thickness is too small, the soundproofing performance will deteriorate, but if the thickness is too large, the feeling of walking may be impaired, and the sinking amount will increase and the bending of the finishing material will increase. Depending on the case, cracks may occur in the finished material, so that the thickness is preferably about 2 to 5 mm.

  The thickness adjusting material (314) is formed of a foamed resin sheet such as a foamed polystyrene sheet, a foamed polyurethane sheet, a foamed polyethylene sheet or a foamed polypropylene sheet, or a wood board such as plywood, PB or MDF. This thickness adjusting material (314) is for adjusting the thickness of the plate mat (3) (= the thickness of the soundproof mat (31) + the thickness of the finishing material (32)) according to the thickness of the tatami mat (2). is there.

  The thickness of the plate tatami (3) is about 24 mm, and is about 1 mm smaller than the thickness of the tatami (2). Therefore, as shown in FIG. 2, the upper surface level of the plate tatami (3), that is, the upper surface level of the finishing material (32) is made lower by about 1 mm than the upper surface level of the tatami mat (2), and the finishing material (32) The end face of is not exposed at all.

  Between the soundproof mat (31) and its surroundings, that is, the side surface of the tatami mat (2), the rising surface (13) from the edge of the floor foundation (10), and the side surface of another adjacent soundproof mat (31). Each has a gap (S) of about 2 mm.

  The finishing material (32) includes a substrate (321) and a decorative material (322) bonded to the upper surface of the substrate (321). The substrate (321) is formed of a synthetic resin sheet in addition to a wood board such as plywood, PB, and MDF. Examples of the material of the decorative material (322) include artificial veneer, natural wood veneer, decorative paper, and synthetic resin sheet. In the case of an artificial protrusion, the surface may be printed.

  The finishing material (32) has a thickness of about 3 mm and can be easily cut with a cutter or a saw. The width of the finishing material (32) is smaller than the width of the soundproof mat (31), that is, a plurality of finishing materials (32) are arranged in the width direction of the second area (12). Made with size. The length of the finishing material (32) is shorter than the length of the soundproofing mat (31) and the seams between the finishing materials (32) are separated from the seams of the soundproofing mats (31) by 40 mm or more. As a result, a situation where a step is generated on the surface of the plate (3) during walking is avoided. In actual construction, for example, a plurality of finishing materials (32) having a width of 145 mm, a length of 909 mm, and a thickness of 3 mm are prepared, and are used after being cut into appropriate dimensions at the construction site. In addition, it is preferable that the finishing material (32) to be prepared is a size smaller than a general 1 × 6 floor material, specifically, a width of about 100 to 200 mm and a length of 450 to 1200 mm.

The finishing materials (32) are joined to each other as shown in FIG. However, the finishing material (32) can be joined or abutted by a joint such as a real one other than the phase pile. The finishing material (32) arranged along the contour of the second section (12) is in contact with the side surface of the tatami mat (2) or the rising surface (13) from the edge of the floor foundation (10). (31) Bonded to the upper surface.
In addition, in the corner part of a 2nd area (12), since the long side and short side of an adjacent finishing material (32) will contact | connect, these joint parts are cut and it is set as a butt. . However, the seams between the finishing materials (32) and the soundproofing mats (31) are shifted, and the finishing material (32) is thin, and the soundproofing mat (31) itself sinks little. Therefore, even when the butt portion of the finishing material (32) is stepped on, a step is hardly generated. Therefore, according to the floor structure of the present invention, a planar shape in which corner portions such as a square shape, a U shape, and an L shape are generated as the second area (12) in which the plate mat (3) is laid. Even in the case, there is an advantage that construction can be performed without any trouble.

  Joining of the finishing material (32) to the upper surface of the soundproof mat (31) is performed using a double-sided adhesive tape (not shown) in consideration of ease of construction. However, an adhesive may be used instead of the double-sided adhesive tape or in addition to the double-sided adhesive tape.

Next, with reference to FIGS. 3-5, an example of the construction method of the said floor structure is demonstrated below.
First, as shown in FIG. 3, the floor base (10) is divided into a first area (11) where the tatami mat (2) is laid and a second area (12) where the tatami mat (3) is laid. After the ink marking for partitioning, the entire inner peripheral part of the second area (12) and the part of the outer peripheral part of the second area (12) facing the entrance and the entrance of the room respectively. Then, the joists (4A) and (4B) are arranged and fixed with concrete nails and an adhesive. At this time, when the joist (4A) is to be placed on the inner periphery of the second area (12), the inner side surface thereof coincides with the ink line (A) that divides both areas (11) and (12). So that the placement is fixed. Further, when the joists (4B) are to be arranged on the outer peripheral portion of the second section (12), the joists (4B) are arranged and fixed so that their outer surfaces are in contact with the rising surface (13) from the edge of the floor base (10).

  Next, as shown in FIG. 4, a plurality of soundproof mats (31) are sequentially laid in the second section (12) along the length direction, for example, counterclockwise when viewed from the plane. . Specifically, first, the soundproof mat (31) is cut to a required size using a cutter or a saw as necessary so that a gap (S) of about 2 mm is generated between the soundproof mat (31) and the surrounding area. . Further, by cutting out the required portions of the thickness adjusting material (314) and the cushion material (313) by a cutter or a saw by the total thickness, a concave portion (31a) for releasing the joist (4A) (4B) is formed. It is formed on the lower surface of the soundproof mat (31). Then, the soundproof mat (31) is adhered to the floor base (10) surface and the top of the joist (4A) (4B) with an adhesive, and from the top of the soundproof mat (31) to the joist (4A) (4B). Drive in the nail and fix it.

  Thereafter, as shown in FIG. 5, a plurality of finishing materials (32) are placed on the soundproof mat (31) so as to extend along the length direction of the soundproof mat (31) and reversely to the soundproof mat (31). That is, it is laid in order clockwise from the plane. Specifically, first, the finishing material (32) is cut into a required dimension using a cutter or a saw as necessary. Then, the finishing material (32) is sequentially joined to the upper surface of the soundproof mat (31) using a double-sided adhesive tape. At this time, the joint between the finishing materials (32) is separated from the joint between the soundproof mats (31) by 40 mm or more.

Finally, the first area (11) surrounded by the joists (4A) and (4B) when it is placed and fixed on the inner periphery of the second area (12) is measured, and the tatami mat is made to fit the dimensions. (2) is laid in the first area (11).
Thus, as shown in FIGS. 1 and 2, the construction of the floor structure formed by combining the tatami mat (2) and the plate tatami mat (3) is completed.

  In the above embodiment, the dimensioning and laying of the tatami mat (2) are performed in the subsequent process of laying the tatami mat (3). Tatami mats) may be used to lay plate tatami mats.

  In the above embodiment, the soundproof mat (31) has a four-layer structure, but a two-layer soundproof mat made of a base material and a surface material may be used. In this case, although the soundproofing performance is somewhat deteriorated as compared with the above embodiment, the same effects as or more than the above embodiment can be obtained in terms of workability and manufacturing cost. In the case of a two-layered soundproof mat, in addition to adjusting the thickness of the base material as appropriate, the thickness of the tatami mat can be adjusted to the tatami thickness by joining a thickness adjusting material made of plywood or PB to the lower surface of the base material. The thickness can be adjusted accordingly.

1, showing an embodiment of the present invention, is a plan view of a floor structure. FIG. It is sectional drawing which expands and shows a part of floor structure of FIG. The 1st process of the construction method of a floor structure is shown, Comprising: (a) is a top view, (b) is a fragmentary sectional view. The 2nd process of the construction method of a floor structure is shown, Comprising: (a) is a top view, (b) is a fragmentary sectional view. The 3rd process of the construction method of the floor structure shown in FIG. 1 is shown, Comprising: (a) is a top view, (b) is a fragmentary sectional view.

Explanation of symbols

(10): Floor base
(11): First area
(12): Second area
(2): Tatami
(3): Plate tatami
(31): Soundproof mat
(31a): Recess
(311): Base material
(311a): Groove
(312): Surface material
(313): Cushion material
(314): Thickness adjuster
(32): Finishing material
(321): Board
(322): Cosmetics
(S): Clearance

Claims (6)

In a floor structure in which a tatami is laid in a first area occupying a part on the floor foundation and a plate is laid in a second area occupying the rest on the floor foundation,
The plate tatami comprises a soundproof mat and a finishing material joined to the upper surface of the soundproof mat ,
In the second section, the outer joist is arranged and fixed so as to be in contact with the tatami mat, and a recess for allowing the joist to escape is formed on the lower surface of the soundproof mat.
Further, in the second area, the outer joist is arranged and fixed at least at the portion facing the doorway of the room among the remaining outlines excluding the outer edge adjacent to the first area, and the joist is allowed to escape. Are formed on the bottom surface of the soundproof mat,
The soundproof mat is made of a foamed polystyrene sheet having a foaming ratio of 15 times or less, a foamed polyethylene sheet having a foaming ratio of 10 times or less, or a polypropylene sheet having a foaming ratio of 10 times or less, and having a plurality of grooves on the lower surface, A surface material bonded to the upper surface, a cushion material bonded to the lower surface of the base material, and a thickness adjusting material bonded to the lower surface of the cushion material,
The thickness of each joist is approximately equal to the sum of the thickness of the cushioning material and the thickness of the thickness adjusting material,
Each said recessed part is formed by excising the required location of a cushioning material and a thickness adjustment material by these full thickness , The floor structure characterized by the above-mentioned. The Rukoto thickness of Itadatami is made smaller than the tatami thickness, characterized in that the upper surface level of Itadatami becomes lower than the upper surface level of the tatami, the end surface of the finish of Itadatami is prevented exposed The floor structure according to claim 1 . And soundproofing mats, tatami side located around, between the rising surface and the other adjacent soundproofing mat side from subfloor edges, gaps of approximately 2~10mm to prevent both rubbing of wherein the are formed over a substrate according to claim 1 or 2 floor structure according. A soundproofing mat having a width that is slightly smaller than the width of the second area in the length direction of the second area is the I-shaped, L-shaped, U-shaped or B-shaped when the second area is viewed from the plane. It is arrange | positioned so that it may follow, The floor structure as described in any one of Claims 1-3 characterized by the above-mentioned. A plurality of finishing materials having a width and length smaller than the width and length of the soundproofing mat are disposed on the top surface of the soundproofing mat along the length direction of the second area, and are joined by a double-sided adhesive tape. The floor structure according to claim 4, wherein: 6. The floor structure according to claim 5 , wherein the joint between the soundproof mats and the joint between the finishing materials are shifted from each other.

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