Anti-vibration floating floor

Abstract

To provide an anti-vibration floating floor with high soundproof performance even in a living space with a huge flat area.SOLUTION: An anti-vibration floating floor 60 comprises a plurality of anti-vibration floating units 40 provided with a plurality of anti-vibration members 20 installed on a floor slab 10 of a building and floor material 30 supported on the plurality of anti-vibration members 20, wherein the plurality of anti-vibration floating units 40 is arranged one after another through first gaps 45 in a plan view, a second gap 46 is arranged between a wall 70 of a living space and the anti-vibration floating unit 40, and each of anti-vibration members 20 is arranged so that shared load of each of the plurality of anti-vibration floating members 20 becomes equal or generally equal.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vibration-isolating floating floor. [Background technology]

[0002] In various buildings such as houses, condominiums, and hotels, there is a problem that sounds and vibrations such as music sounds and walking sounds (heavy impact sounds) made by residents or guests on upper floors, and impact sounds (light impact sounds) when objects are dropped on the floor surface are transmitted to the lower floors, causing discomfort to residents on the lower floors. As one measure to solve such a problem, a floating floor construction method having sound insulation and vibration isolation performance is sometimes applied. This floating floor construction method includes a wet floating floor construction method in which vibration isolation materials (buffer materials, sound absorbing materials) such as glass wool are arranged on a floor slab such as a concrete slab, a reinforced concrete slab or the like is constructed on top of that, and a surface finishing material (floor material) is constructed on top of that, and a dry floating floor construction method in which vibration isolation materials are arranged at predetermined intervals on a concrete slab or the like, joists (support legs) are installed on top of that, a base surface material such as particle board is arranged on the joists, and a soundproof mat or the like is further laid on top of that, and then a surface finishing material (floor material) is laid.

[0003] Both vibration-proof floating floors (soundproof and vibration-proof floating floors) made by the wet floating floor construction method and dry floating floors made by the dry floating floor construction method can be expected to reduce the vibrations that are transmitted vertically to the floor below. However, the underfloor space that exists between the floor slab and the soundproof mat is generally sealed because it is shielded by the floor slab, the soundproof mat, and the walls of the living room. The air under the floor in such a sealed state forms a virtual spring with higher rigidity than the vibration-proof material, and there is a risk that the vibration-damping effect of the vibration-proof material will not be fully obtained.

[0004] In response to the above-mentioned problems, an improved soundproof floor that can effectively reduce floor impact noise has been proposed. This soundproof floor is a long-joist raised-floor soundproof floor in which floorboards are supported on a framing consisting of joists and long joists on the floor slab of the building frame, and the framing is supported via vibration-isolating rubber to form a floating floor. Gaps are provided between the floorboards and the walls and columns around the periphery of the floating floor, allowing air to freely flow in and out under the floor (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 6-10494 Summary of the Invention [Problem to be solved by the invention]

[0006] According to the soundproof floor described in Patent Document 1, although the floor impact force acting on the floorboards is transmitted to the building structure such as the floor slab via the underfloor space, the air in the underfloor space is not sealed, so the resonance phenomenon in the underfloor space is reduced, and it is said that floor impact sounds caused by heavy impact sources in particular can be effectively reduced.

[0007] Incidentally, in the soundproof floor described in Patent Document 1, when the vibration source (shock source) in the floor is the periphery (wall edge) of the floor with the gap, the vibration damping effect of the vibration-proof material can be expected to be sufficient. However, as the floor area of ​​the room increases, it is fully expected that a distance will occur between the periphery of the floor with the gap and the vibration source, and when there is such a distance between the air vent gap and the vibration source, it will take time for the underfloor air directly below the vibration source to escape through the gap. As a result, a virtual spring is formed by the underfloor air, which has a higher rigidity than the vibration-proof material, and the above-mentioned problem occurs that the vibration damping effect of the vibration-proof material cannot be obtained sufficiently.

[0008] The present invention has been made in consideration of the above problems, and aims to provide a vibration-isolating floating floor that has excellent soundproofing performance even in rooms with a large floor area. [Means for solving the problem]

[0009] In order to achieve the above object, one aspect of the vibration-isolating floating floor according to the present invention is as follows: The structure includes a plurality of vibration-isolating floating floor units each including a plurality of vibration-isolating materials installed on the floor slab of a building and a floor material supported by the plurality of vibration-isolating materials; In a plan view, the vibration isolation floating floor units are arranged with a first gap between them, A second gap is provided between the wall of the room and the vibration-isolating floating floor unit, The vibration-proof materials are arranged so that the loads borne by the plurality of vibration-proof materials are the same or approximately the same.

[0010] According to the present aspect, a plurality of anti-vibration floating floor units each comprising an anti-vibration material and a floor material are arranged with a first gap between them when viewed in a plan view, and a second gap is provided between the wall of the room and the anti-vibration floating floor units. Therefore, even if the floor area of ​​the room is large, air can be evacuated from under the floor through at least one of the first gap and the second gap which is closer to the vibration source, so that the vibration damping effect of the anti-vibration material can be fully obtained.

[0011] In addition, in each vibration-isolation floating floor unit, the vibration-isolation materials are arranged so that the load shares of the multiple vibration-isolation materials are the same or approximately the same, so that when the vibration-isolation floating floor unit receives an impact, each vibration-isolation material can bear the load as evenly as possible, and the entire area of ​​the floor material constituting the vibration-isolation floating floor unit can be pressed down as evenly as possible, allowing the vibration-isolation performance of each vibration-isolation material to be exerted. If there is a distribution in the load shares of each vibration-isolation material, the amount of expansion and contraction of each vibration-isolation material will be different, resulting in a distribution in the vibration-isolation performance of each vibration-isolation material in one vibration-isolation floating floor unit, and there is a risk that the vibration-isolation performance of each vibration-isolation material will be reduced.

[0012] Here, "the shared load of multiple vibration-proof materials is the same or approximately the same" means that in addition to the shared load of the multiple vibration-proof materials that make up the vibration-proof floating floor unit being completely the same, it also includes a difference in the shared load of about 10% to 20%, and such differences in the shared load are considered to be approximately the same.

[0013] The vibration-isolating floating floor can also be called a sound-proof vibration-proof floating floor, and the vibration-isolating floating floor of this embodiment includes both dry-type and wet-type floating floors. The floor material constituting the vibration-isolating floating floor unit includes a floor support and a surface finishing material. The floor support is a member having the mass and rigidity required to achieve the desired vibration-isolating and sound-proofing performance, and when the vibration-isolating floating floor is a dry-type floating floor, plywood, soundproof mats, etc. are used as the floor support. When the vibration-isolating floating floor is a wet-type floating floor, a reinforced concrete slab constructed on-site, etc. are used as the floor support.

[0014] In the vibration-isolating floating floor of this embodiment, multiple vibration-isolating floating floor units are separated in a plane via one or multiple first gaps depending on the planar area. That is, examples include a form in which two vibration-isolating floating floor units are arranged via one first gap, and a form in which four vibration-isolating floating floor units are arranged via two cross-shaped first gaps.

[0015] Another aspect of the vibration-isolating floating floor according to the present invention is characterized in that a gap blocking material having air permeability is disposed in the first gap and the second gap.

[0016] According to this aspect, by disposing the gap blocking material having air permeability in the first gap and the second gap, it is possible to prevent dirt and dust from entering each gap. Here, an example of the gap blocking material having air permeability is a wire mesh or the like.

[0017] Another aspect of the vibration-isolating floating floor according to the present invention is characterized in that the surface of the floor material and the surface of the gap blockage material are flush with each other.

[0018] According to this embodiment, the surface of the floor material and the surface of the gap blocker are flush with each other, so that a flat floor surface can be formed over the entire floor. If a wire mesh is used as the gap blocker, a protrusion can be protruded from the side of the floor material that constitutes the vibration-isolating floating floor unit, and the wire mesh can be dropped into this protrusion, so that the surface of the floor material and the wire mesh are flush with each other.

[0019] Another aspect of the vibration-isolating floating floor according to the present invention is characterized in that the vibration-isolating floating floor unit has a rectangular shape in a plan view and its planar dimensions have predetermined standard dimensions.

[0020] According to this embodiment, by applying a standardized (unified) vibration-proof floating floor unit whose planar shape is rectangular (rectangles include rectangles and squares) and whose planar dimensions have predetermined reference dimensions, the manufacturing cost of the vibration-proof floating floor unit can be reduced and the installation efficiency of the vibration-proof floating floor unit can be increased. In addition, by changing the number of vibration-proof floating floor units to be applied, it is possible to accommodate changes in the planar area of ​​the living space. Here, examples of a form in which the "planar shape is rectangular and whose planar dimensions have predetermined reference dimensions" include a rectangular form in plan view with a short side 1P width (P indicates a module, and can be set arbitrarily between 800 mm and 1100 mm, for example, 910 mm width, depending on the module design specifications) and a long side 2P width, and a square form in plan view with one side 1P width or 2P width. Effect of the Invention

[0021] The vibration-isolating floating floor of the present invention provides excellent soundproofing performance even in rooms with a large floor area. [Brief description of the drawings]

[0022] [Figure 1] FIG. 2 is a plan view of an example of a vibration-isolating floating floor according to an embodiment. [Diagram 2] FIG. 2 is a view taken along the line II-II of FIG. 1, and is a vertical cross-sectional view of an example of a vibration-isolating floating floor according to an embodiment of the present invention. [Diagram 3] 13 is a diagram explaining a method of arranging multiple vibration-isolating materials in a vibration-isolating floating floor unit. FIG. [Figure 4] FIG. 3(a) is an enlarged view of a portion IVa in FIG. 2, and FIG. 3(b) is a perspective view of an example of a gap blockage material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, the vibration-isolating floating floor according to the embodiment will be described with reference to the accompanying drawings. In this specification and the drawings, substantially the same components are designated by the same reference numerals, and redundant description may be omitted.

[0024] [Anti-vibration floating floor according to the embodiment] An example of a vibration-isolating floating floor according to an embodiment will be described with reference to Fig. 1 to Fig. 4. Fig. 1 is a plan view of an example of a vibration-isolating floating floor according to an embodiment, and Fig. 2 is a view taken along the line II-II in Fig. 1, which is a vertical cross-sectional view of an example of a vibration-isolating floating floor according to an embodiment. Fig. 3 is a diagram for explaining a method of arranging a plurality of vibration-isolating materials in a vibration-isolating floating floor unit, Fig. 4(a) is an enlarged view of part IVa in Fig. 2, and Fig. 4(b) is a perspective view of an example of a gap blocking material.

[0025] The vibration-isolating floating floor 60 has a plurality of vibration-isolating floating floor units 40 (four in the illustrated example), each of which comprises a plurality of vibration-isolating materials 20 installed on the floor slab 10 of the building and a floor material 30 supported by the plurality of vibration-isolating materials 20. In a plan view, the plurality of vibration-isolating floating floor units 40 are disposed with a first gap 45 between them, and each vibration-isolating floating floor unit 40 is disposed with a second gap 46 between it and the surrounding wall 70. Note that the illustrated example shows a state in which the plan view of the building is square (an example of a rectangle), and the vibration-isolating floating floor 60 is provided inside the square frame-shaped wall 70 between a lower floor (e.g., the first floor) and an upper floor (e.g., the second floor).

[0026] Here, the vibration-proof material 20 is formed of vibration-proof rubber, a laminate of vibration-proof rubber and glass wool board (including high-density glass wool board), etc. Also, the floor slab 10 is, for example, a ceiling slab of the lower floor made of reinforced concrete.

[0027] The floor material 30 has a floor support 31, a floor underlay material 32, and a surface finishing material 33. The floor support 31 can be made of various materials that have the minimum mass required to achieve the desired soundproofing and vibration-proofing performance, such as a soundproof mat, a laminate of PC boards, cement boards, and asphalt mats, plywood, or a laminate of two or more of these materials, and the floor support 31 in the illustrated example is formed of a soundproof mat, for example.

[0028] The underfloor material 32 is formed from particle board, ALC (Autoclaved Lightweight Concrete), plywood or the like, and the surface finishing material 33 is formed from, for example, a flooring material or the like.

[0029] Here, the width of the first gap 45 and the second gap 46 is set to, for example, about 10 mm. Then, a gap blocking material 50 having air permeability is disposed in the first gap 45 and the second gap 46. As the gap blocking material 50 having air permeability, a wire mesh, a glass wool board, a plate material having a plurality of air vent holes, or the like can be used.

[0030] As shown in Figures 2 and 4(a), the side surfaces of the floor support 31 facing the first gap 45 and the second gap 46 are provided with protrusions 31a that extend toward each gap, and gap blocking material 50 is placed on these protrusions 31a.

[0031] By placing the gap blockage material 50 in the first gap 45 and the second gap 46, dirt and dust are prevented from entering each gap.

[0032] 4(b), the gap blockage material 50 in the illustrated example is formed of a wire mesh having many ventilation holes 53. For example, a wire mesh that is elongated and rectangular in plan view is bent at two points to form the gap blockage material 50 having an upper piece 51 and two side pieces 52 that are bent downward at both ends of the upper piece 51. Here, the ventilation holes 53 are preferably set to have a mesh size smaller than the size of general dirt and dust expected to be generated in a room.

[0033] The height t2 (see Figure 4(b)) of the gap blocking material 50 is set so that when the gap blocking material 50 is dropped from above into the first gap 45 or the second gap 46 and the lower end of the side piece 52 of the gap blocking material 50 is placed on the protrusion 31a, the surface 33a of the surface finishing material 33 of the floor material 30 that constitutes each vibration-isolation floating floor unit 40 and the upper piece 51 of the gap blocking material 50 are flush with each other, as shown in Figure 4(a).

[0034] In this way, by making the surface 33a of the surface finishing material 33 and the upper piece 51 of the gap blocking material 50 flush, a flush floor surface can be formed over the entire floor, even though there are first gaps 45 and second gaps 46 between adjacent vibration-proof floating floor units 40 and between the vibration-proof floating floor units 40 and the wall 70.

[0035] As shown in Fig. 3, in the vibration-isolating floating floor unit 40, the vibration-isolating materials 20 are arranged so that the load shares of the multiple vibration-isolating materials 20 are the same or approximately the same. In Fig. 3, the length of each side of the square floor material 30 in a plan view is 2 x t1, and the vibration-isolating materials 20 are arranged inside eight right-angled isosceles triangles having the same planar area A that are created when a line (a dashed line) passing through the center of each side is drawn. By arranging the vibration-isolating materials 20 at the same or approximately the same position inside each right-angled isosceles triangle, each vibration-isolating material 20 bears the same or approximately the same load share.

[0036] In this way, by arranging each vibration-proof material 20 so that the shared load of the multiple vibration-proof materials 20 is the same or approximately the same, when the vibration-proof floating floor unit 40 receives an impact, each vibration-proof material 20 can receive a shared load as evenly as possible, and the entire area of ​​the floor material 30 that constitutes the vibration-proof floating floor unit 40 can be pressed down as evenly as possible, allowing the vibration-proof performance of each vibration-proof material 20 to be demonstrated.

[0037] 1, each vibration-isolating floating floor unit 40 is a square unit in plan view with the same planar dimensions. If t1 in FIG. 3 is 1P (for example, 910 mm), the planar dimensions of the vibration-isolating floating floor unit 40 are 2P×2P.

[0038] This dimension is used as the reference dimension, and an anti-vibration floating floor unit 40 having this reference dimension is set as a standardized anti-vibration floating floor unit. By applying multiple standardized anti-vibration floating floor units 40 to form an anti-vibration floating floor 60 as shown in Figure 1, it is possible to eliminate the need to manufacture a variety of anti-vibration floating floor units, which leads to a reduction in the manufacturing costs of the anti-vibration floating floor unit 40.

[0039] In particular, the vibration-isolating floating floor units 40, which are square in plan view as shown in the figure, have the same dimensions and no vertical or horizontal directionality, which increases the installation efficiency when they are installed on the floor slab 10. Furthermore, by changing the number of vibration-isolating floating floor units 40 used, it is possible to accommodate rooms with a variety of floor areas.

[0040] 1, the vibration-isolating floating floor 60 has a second gap 46 between the surrounding wall 70 and the vibration-isolating floating floor unit 40, and a first gap 45 between adjacent vibration-isolating floating floor units 40. Therefore, no matter where the vibration source occurs in the vibration-isolating floating floor unit 40, the underfloor air directly below the vibration source can quickly reach the first gap 45 or the second gap 46, which is closer to the vibration source, and escape upward.

[0041] For example, as shown in Figure 2, the underfloor air directly below vibration F1 generated by a person (vibration generator) near the left end of the left-side vibration-isolation floating floor unit 40 flows in the X1 direction to the second gap 46 at the nearest left wall 70, and quickly escapes upward through the second gap 46.

[0042] In addition, the underfloor air directly below vibrations F2 emitted by a person (vibration generator) near the right end of the left-side vibration-isolation floating floor unit 40 flows in the X2 direction to the nearest central first gap 45 and quickly escapes upward through the first gap 45.

[0043] Furthermore, the underfloor air directly below the vibrations F3 emitted by a person (vibration generator) in the center of the left-side vibration-isolation floating floor unit 40 flows in the X3 direction to both the second gap 46 at the left wall 70 and the first gap 45 in the center, which are approximately the same distance apart, and quickly escapes upward through the second gap 46 and the first gap 45.

[0044] In this way, since the vibration-isolating floating floor 60 has the second gap 46 between the surrounding wall 70 and the vibration-isolating floating floor unit 40, and the first gap 45 between adjacent vibration-isolating floating floor units 40, even if the floor area of ​​the room is large, the underfloor air can be quickly released from one or both of the first gap 45 and the second gap 46 that are close to the vibration source. As a result, the problem of a virtual spring being formed by the underfloor air that is more rigid than the vibration-isolating material and the vibration damping effect of the vibration-isolating material not being fully obtained due to the time it takes for the underfloor air directly below the vibration source to escape through the gap does not occur, and the vibration damping effect of each vibration-isolating material 20 can be fully obtained, and excellent soundproofing performance is achieved.

[0045] In addition, the present invention is not limited to the configuration shown here, and may be implemented in other embodiments in which other components are combined with the configurations and the like of the above-mentioned embodiment. In this regard, the present invention may be modified within the scope of the gist of the present invention, and may be appropriately determined according to the application form. [Explanation of symbols]

[0046] 10: Floor slab 20: Vibration isolating material 30:Flooring 31: Floor support 31a: Protrusion 32: Floor underlayment 33: Surface finishing materials 33a: Surface 40: Anti-vibration floating floor unit 45: First gap 46: Second gap 50: Gap blocking material 51: Top piece 52: Side piece 53: Ventilation hole 60: Anti-vibration floating floor 70: Wall G: Underfloor space

Claims

1. The structure has a plurality of vibration-isolating floating floor units each having a rectangular shape in plan view, the vibration-isolating materials being installed on the floor slab of a building and a floor material being directly supported by the vibration-isolating materials; In a plan view, the vibration isolation floating floor units are arranged with a first gap between them, A second gap is provided between the wall of the living space and the vibration-isolating floating floor unit, This vibration-isolation floating floor is characterized in that each vibration-isolation material is arranged inside eight right-angled triangles created when a line is drawn through the center of each side of the floor material so that the shared load of the multiple vibration-isolation materials is the same or approximately the same.

2. 2. The vibration-isolating floating floor according to claim 1, wherein a gap-blocking material having air permeability is disposed in the first gap and the second gap.

3. 3. The vibration-isolating floating floor according to claim 2, wherein the surface of the floor material and the surface of the gap blockage material are flush with each other.

4. An anti-vibration floating floor as described in any one of claims 1 to 3, characterized in that the dimensions of each side of the anti-vibration floating floor unit have a unit module width between 800 mm and 1100 mm or a predetermined standard dimension that is an integer multiple of the unit module width.

Images