JP2004239061A - Floor structure and floor underlayer panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor structure which is lightweight and reduces a level of floor impact sound, and to provide a floor underlayer panel used for the floor structure. <P>SOLUTION: In the floor underlayer panel 40, an area on a supporting board 33 of a vibration-proofing support leg 30 is formed to be solid. In the other area, a plurality of cavities 41 are formed to extend in parallel to a floor surface. The vibration energy transmitted from an impact point of the floor underlayer panel 40 is reflected at a border between the cavitied area, and the solid area, and the energy passes the cavitied areas repeatedly. Consequently, the energy attenuates in a short time and the vibration energy or sound energy transmitted to a slab 20 is reduced. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a floor structure installed on a slab of a building such as an apartment house, and a floor base panel used for the floor structure.

2. Description of the Related Art Generally, a dry sound-insulating double floor is used as a floor structure of an apartment building such as an apartment. Conventional dry-type sound-insulating double floors have anti-vibration support legs arranged at predetermined intervals on a concrete floor slab, and glue each edge of the floor base panel made of particle board or plywood on the support board of the anti-vibration support legs It is fixed and finished with a flooring or the like on the floor base panel. For example, Patent Document 1.
JP-A-63-58129

By the way, in the conventional floor structure, sound insulation may not be sufficient just by applying the finishing upholstery on the floor basement panel.Therefore, a rubber mat is laid between the flooring basement panel and the finishing upholstery to take sound insulation measures. I was.
Further, in the conventional floor structure, the interval between the anti-vibration support legs needs to be relatively narrow, about 400 mm to 600 mm in consideration of the strength of the floor base panel. However, there is a problem that work such as adjusting the height of the floor base panel becomes complicated.
In general, as a method of increasing the distance between the anti-vibration support legs, a method of increasing the strength by increasing the thickness of the floor base panel can be considered. However, since the floor base panel becomes heavier, the transportation cost increases. However, there arises a problem that transportation during construction becomes complicated and a problem that it is not suitable for application to a floor of a high-rise house.

  The present invention has been made in view of the above circumstances, and provides a floor structure that is lightweight and can reduce the floor impact sound level, and a floor base panel used for the floor structure. It is an object.

In order to solve the above-mentioned problem, the present invention provides a floor structure supporting a floor base panel with a plurality of support legs, wherein the floor base panel has a solid region in contact with the support legs, and It is characterized in that a plurality of cavities are formed in a non-contact area. According to this configuration, the vibration energy transmitted from the impact point of the floor base panel is reflected at the boundary between the cavity forming region and the solid region and repeatedly passes through the cavity forming region, so that the vibration energy is attenuated in a short time. be able to. Thereby, vibration energy and acoustic energy transmitted to the slab on which the floor structure is installed can be reduced.
Further, in this configuration, the floor base panel is a hollow base panel in which a plurality of cavities are formed throughout, and a predetermined member is filled in a cavity in a region of the cavity in contact with the support leg. Thus, the region may be formed solid. Accordingly, the present invention can be applied not only to a case where an end of a fixed size panel is supported but also to a case where a panel cut into an arbitrary shape is used. Further, the present invention can be similarly applied to a panel having a hollow structure on the entire surface without a solid portion.

  The present invention also provides a floor structure supporting a floor base panel by a plurality of support legs, wherein a weight is provided above a support member of the support legs for supporting the floor base panel, and an upper surface of the floor base panel is provided. It is characterized by being arranged in. According to this configuration, the vibration on the support member of the floor base panel is suppressed by the weight, and the exciting force of the slab transmitted via the support legs can be reduced.

  According to the present invention, in a floor structure supporting a floor base panel by a plurality of support legs, a weight is disposed between the support member of the support legs supporting the floor base panel and the floor base panel. It is characterized by: According to this configuration, the swing of the support leg due to the vibration of the floor base panel due to the weight is reduced, and the exciting force of the slab transmitted via the support leg can be reduced.

  Further, the present invention is characterized in that in a floor structure supporting a floor base panel with a plurality of support legs, a weight is attached to a support member of the support legs supporting the floor base panel. According to this configuration, since the moment of inertia of the support leg is increased, it is possible to prevent the case where the support leg swings due to the vibration of the floor base panel, and it is possible to reduce the exciting force of the slab transmitted through the support leg. .

  Further, the present invention provides a floor structure supporting a floor base panel by a plurality of support legs, a support member of the support legs abutting on the floor base panel, and a region of the floor base panel abutting on the support member. Are characterized by different densities. According to this configuration, since the vibration energy transmitted from the impact point of the floor base panel is reflected at the boundary between the floor base panel and the support member, the vibration energy transmitted to the support legs can be reduced.

  Further, the present invention provides a floor structure supporting a floor base panel by a plurality of support legs, a support member of the support legs abutting on the floor base panel, and a region of the floor base panel abutting on the support member. Are characterized by different stiffnesses. According to this configuration, since the vibration energy transmitted from the impact point of the floor base panel is reflected at the boundary between the floor base panel and the support member, the vibration energy transmitted to the support legs can be reduced.

Also, the present invention provides a floor base panel used for a floor structure supporting a floor base panel with a plurality of support legs, wherein a region that abuts the support leg is formed solid, and a region that does not abut the support leg. Is characterized in that a plurality of cavities are formed. According to this configuration, the vibration energy transmitted from the impact point of the floor base panel is reflected at the boundary between the cavity forming region and the solid region and repeatedly passes through the cavity forming region, so that the vibration energy is attenuated in a short time. be able to.
Further, according to the present invention, even when the floor base panel is provided with a cavity to reduce the weight, the vibration energy transmitted from the floor base panel to the support legs can be reduced, and the floor impact sound level can be reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(1) First Embodiment FIG. 1 is a diagram showing a sound insulation floor of a dry sound insulation double floor according to a first embodiment of the present invention. The sound insulation floor 10 includes a vibration-insulating support leg 30 that is spaced apart from a slab 20 that is a building body of a building, a hollow base panel 40 supported by the vibration-isolation support leg 30, and a hollow base panel 40. And a finishing material 50 placed thereon. Note that the finishing material 50 is a flooring material, a tatami mat, a carpet, or the like. If necessary, a discarded material may be disposed between the finishing material 50 and the hollow base panel 40.

  As shown in FIG. 2, the anti-vibration support leg 30 includes a support bolt 32 rotatably supported by a frustum-shaped anti-vibration rubber 31 and a support board 33 screwed to the support bolt 32. I have. A hexagonal hole 34 is formed in the upper end surface of the support bolt 32, and as shown in FIG. 1, the hollow base panel 40 is spaced apart from the support board 33 so that the hexagonal hole 34 is viewed from above. The height of the hollow base panel 40 (level setting) can be adjusted by rotating the support bolt 32 using a hexagon wrench through the hexagon hole 34. The hollow base panel 40 may be fixed to the support board 33 by adhesion, or may be fixed to the support board 33 using screws or bolts.

The hollow base panel 40 is a wood thin laminated board in which wood thin pieces are laminated, and the strength and the weight are reduced by forming substantially trapezoidal cavities 41 at regular intervals in the longitudinal direction (the direction parallel to the floor surface). It is a floor base panel made possible.
FIG. 3 is an enlarged view of a side surface of the hollow base panel 40. As shown in this figure, the hollow base panel 40 is formed such that the lamination direction of the woody flakes is laminated between the cavities 41 at a slope of approximately 60 degrees and a gradient of 120 degrees, respectively. (Areas indicated by reference signs α and β). For this reason, in this hollow base panel 40, the force applied in the floor surface vertical direction (Y direction) and the floor surface parallel direction (X direction) acts in a substantially compressing direction with respect to the longitudinal direction of the wooden thin piece. The strength against the force applied from is increased.

  In addition, since the laminating direction of the woody flakes between the cavities 41 and the cavities 41 is alternately laminated at a symmetrical inclination angle with respect to the vertical direction of the floor surface, the laminating direction is from any of the left and right directions parallel to the floor surface. The strength is maintained evenly high with respect to the applied force. Therefore, the hollow base panel 40 can maintain high strength (rigidity) in the floor vertical direction and the floor parallel direction, though the weight is reduced by having the hollow structure. Thereby, the hollow base panel 40 can have a strength / weight ratio higher than that of a particle board or a plywood generally used as a floor base panel, so that the hollow base panel 40 has the same strength as a conventional floor base panel. Even so, the panel weight can be reduced.

  Further, as shown in FIG. 1, the hollow base panel 40 is formed such that the cavity 41 does not exist in a region on the support board 33 of the anti-vibration support leg 30. In other words, the area perpendicular to the floor surface on the support board 33 of the hollow base panel 40 is formed solid. By forming the solid portion and the hollow portion in the hollow base panel 40 in this manner, when the hollow base panel 40 is viewed as a vibration propagation path, discontinuity in impedance occurs between the solid portion and the hollow portion. Therefore, reflection occurs at the boundary between the solid portion and the hollow portion.

For this reason, the vibration energy transmitted from the impact point of the hollow base panel 40 is repeatedly reflected before being transmitted to the support board 33, and is attenuated in a short time by repeatedly passing through a complicated propagation path in the hollow portion. . Thereby, the sound insulating floor 10 can reduce the vibration energy transmitted from the hollow base panel 40 to the slab 20 via the anti-vibration support legs 30 and the acoustic energy transmitted to the slab 20 by the vibration of the hollow base panel 40, It is possible to significantly reduce the floor impact sound level.
Further, as shown in FIG. 3, the hollow base panel 40 has a discontinuity in impedance between the thickness L1 and the thickness L2, which also causes vibration energy propagating in the direction parallel to the floor from the impact point. Is reflected at the boundary of the thickness and attenuates in a short time.

  Further, since the sound insulating floor 10 uses the hollow base panel 40 which is light in weight and has high surface rigidity, when the weight per one hollow base panel 40 is the same as that of the conventional base panel, the panel size is reduced. It is possible to make it larger. Therefore, by increasing the length and width of the hollow base panel 40 per sheet, it is possible to increase the arrangement interval of the anti-vibration support legs 30, and reduce the number of use of the anti-vibration support legs 30. it can. If the number of use of the anti-vibration support legs 30 can be reduced, the operation of adjusting the height of the hollow base panel 40 (leveling out the horizontal level) can be simplified, so that the cost of materials and work can be reduced.

  Further, since the design flexibility of the thickness dimension is improved without being limited to the length and width dimensions of the hollow foundation panel 40, the conventional floor foundation panel has a dimension limitation (a dimension limitation due to the withstand load of the anti-vibration support leg 30). For example, the resonance frequency of the floor base panel is close to the resonance frequency of the slab 20, and the sound insulation is reduced. In this hollow base panel 40, the resonance frequency is lower than the resonance frequency of the slab 20. It is also easy to design the shape so as to be away from it. Thus, by using the hollow base panel 40, it is possible to easily design the sound insulation floor 10 having desired rigidity and sound insulation. The resonance frequency of the hollow base panel 40 can be changed by changing the shape and size of the cavity 41 of the hollow base panel 40.

Next, a method and materials for manufacturing the hollow base panel 40 will be specifically described.
After the binder is attached to the wooden flakes, the hollow base panel 40 has a trapezoidal upper aluminum bar connected at equal intervals by a connecting plate 55a on the first to several layers of the wooden flakes as shown in FIG. After disposing one to several layers of wood flakes, core 55 made of trapezoidal upper aluminum rods connected at equal intervals by connecting plate 55b is arranged, and wood flakes are further dispersed. . At this time, the core 55 connected by the connecting plate 55a and the core 55 connected by the connecting plate 55b are arranged such that the trapezoids are turned upside down.

  Next, the laminate 70 obtained by laminating the wood flakes is hot-pressed at a temperature of 140 to 220 ° C. and a pressure of 15 to 40 kg / cm 2 for 6 to 15 minutes, and hot-pressed until the thickness becomes 1/3 to 1/30. After molding and cooling, the core 55 is pulled out, and the outer periphery of the laminate 70 is trimmed, whereby the hollow base panel 40 can be manufactured.

  As the woody flakes, red pine, larch, spruce, fir, fir, aspen, lodgepole pine and the like are usually used, but the tree species is not particularly limited. In addition, the arrangement of the woody flakes may be such that the grain direction may be substantially aligned in one direction, or may be a three-layer structure, and may be stacked so that the grain direction of adjacent layers is orthogonal to each other. It is not done. Further, depending on the strength or rigidity of the target hollow base panel 40, a plurality of types of wood thin pieces may be mixed, or the mixing ratio of the wood thin pieces and the binder may be changed.

  As the binder, any of a foamable binder resin, a non-foamable binder resin, and a mixture thereof may be used, but a foamable binder resin is preferable. The foamable binder resin bonds the woody flakes to each other and foams itself. Therefore, the gap between the woody flakes is expanded with foam cells to reduce the amount of resin used, and the hollow base panel 40 is lowered. It can be densified. Furthermore, the heat insulation effect and the sound insulation effect of the hollow base panel 40 can be improved by the foam cells.

  The foamable binder resin may be a self-foamable foamable resin or a mixed foamable resin obtained by adding a foaming agent to a non-foamable resin such as phenol, urea, epoxy, or acrylic, but the rigidity is improved. It is preferable to use a foamable resin that self-foams for the purpose of obtaining a hollow base panel 40 having a low density. Examples of the self-expanding foamable resin include a foamable polyurethane resin, an isocyanate-based resin, and preferably PMDI (polymetallic MDI or crude MDI). When an expandable polyurethane resin or an isocyanate-based resin is used, it easily reacts with moisture, and the isocyanate group (-NCO) reacts with water to self-foam, so that the reaction time is shortened and the time required for hot-press molding is reduced. can do.

  The amount of the binder with respect to the woody flakes is desirably 3.5 to 20 parts by weight based on 100 parts by weight (absolute dry weight) of the woody flakes. It is also possible to change the density and strength of the hollow base panel 40 by changing the amount of the binder added. Note that a curing agent, a curing catalyst, a curing accelerator, a diluent, a thickener, a dispersant, a water repellent, and the like may be added to the binder as needed.

  Further, it is preferable that the woody flakes are acetylated in advance. In the case of acetylation, the woody flakes are dried to a moisture content of 3% or less, preferably 1% or less, and then contacted with vaporized vapor such as acetic acid, acetic anhydride, chloroacetic acid, etc. to acetylate in the gas phase. (Degree of 12 to 20%). By acetylating the woody flakes in this manner, water resistance can be obtained, and it is possible to prevent dimensional changes over time.

(2) Second Embodiment FIG. 5 is a diagram showing a sound insulation floor of a dry type sound insulation double floor according to a second embodiment of the present invention. The sound insulating floor 100 is the same as the sound insulating floor 10 according to the first embodiment except that a weight 60 is disposed between the hollow base panel 40 and the finishing material 50, and thus the same parts are denoted by the same reference numerals. , Overlapping description will be omitted, and only different portions will be described.

  FIG. 6 is a diagram showing an arrangement position of the weight 60 arranged on the hollow base panel 40. As shown in the figure, the weight 60 is disposed on the upper surface of the hollow base panel 40 so as to be above the support board 33 of the six anti-vibration support legs 30 that support the hollow base panel 40. That is, as shown in FIG. 7, when the hollow base panel 40 receives an impact, it vibrates in the direction indicated by the arrow. However, as shown in FIG. ) Can be reduced, and the exciting force of the slab 20 can be reduced.

  Specifically, as shown in FIG. 9, the simulation results when the weight 60 is not arranged and when the weight 60 is arranged, when an impact is applied to the center of the hollow base panel 40, when the weight 60 is not arranged, the maximum A vibration force of about 1.0 kgf was generated, and a vibration force of about 0.5 kgf was generated particularly at 57 Hz close to the resonance frequency of the slab 20. On the other hand, when the weight 60 was arranged, the maximum vibration Since the force is halved to about 0.5 kgf and the exciting force at 40 Hz or more is reduced to 0.2 kgf or less, it can be confirmed that the exciting force at the resonance frequency of the slab 20 is greatly reduced. The weight 60 is assumed to have a case in which 2.275 kg of weight is arranged at each of the four corners of the hollow base panel 40, and a weight of 5.454 kg is arranged in the middle of the long sides (FIG. 6). reference).

  In particular, when a vibration (vibration mode) occurs in which one of the hollow base panels 40 on one support board 33 bends upward while the other bends downward, it is prevented that the weight 60 is not disposed. Although the vibration supporting leg 30 shakes and transmits vibration to the slab 20, the vibration of the hollow base panel 40 can be suppressed by disposing the weight 60, so that the stability of the vibration isolating supporting leg 30 is improved. In addition, there is an effect that the anti-vibration function can be sufficiently performed.

  Accordingly, the sound-insulating floor 100 according to the present embodiment can significantly reduce the exciting force of the slab 20, so that the floor impact sound level can be further reduced in addition to the effects of the first embodiment. . In the present embodiment, the case where the weight 60 is formed in the shape of a rectangular parallelepiped is shown in the drawings, but it goes without saying that the weight 60 may have any shape.

(3) Modifications The present invention is not limited to the above-described embodiment, but can be implemented in various modes. For example, the following modified embodiments are possible.

In the above-described first embodiment, a case has been described where the hollow base panel 40 is formed in advance so that the cavity 41 does not exist in order to make the region on the support board 33 solid, but as shown in FIG. The hollow base panel 40 may be solid-processed later by inserting a member 41B such as wood, metal, a foamed member, or rubber into the cavity 41 in the region on the support board 33 of the hollow base panel 40.
In order to make the explanation easy to understand, a solid cavity 41 is shown by oblique lines in the figure. In addition, as shown in FIG. 11, a joining material 41C may be inserted into the cavity 41 so that both end regions of the cavity 41 are solid. In this case, it is also possible to change the natural frequency of the hollow base panel 40 by changing the number of inserts 41C and the position of the cavity 41.
As shown in FIG. 12, the end of the hollow base panel 40 has a cavity 41D such as a groove or a gap formed by cutting the cavity 41 halfway, and the cavity 41D exists on the support boat 33. In this case, the cavity 41D may be made solid by embedding a member 41E such as wood, metal, a foamed member, or rubber. As described above, by filling the already formed cavities 41 and 41D later, the present invention can be applied not only to the case where the edge of the fixed size panel is supported but also the case where the panel cut into an arbitrary shape is used. can do. Further, the present invention can be similarly applied to a panel having a hollow structure on the entire surface without a solid portion.

  In the above-described second embodiment, a case has been described in which the weight 60 is disposed above the support board 33 of the anti-vibration support leg 30 and on the upper surface of the hollow base panel 40 (see FIG. 6). As shown in FIG. 14, a method of disposing the weight 60 between the hollow base panel 40 and the support board 33, a method of covering the end of the hollow base panel 40 with the weight 60 as shown in FIG. In addition, the method of inserting the weight 60 into the region of the hollow base panel 40 on the support board 33 also suppresses the vibration of the hollow base panel 40 on the support board 33, and the vibration-proof supporting legs accompanying the vibration of the hollow base panel 40. The vibration of the slab 20 can be reduced by reducing the shaking of the slab 30.

  Also, as shown in FIG. 16, the weight 60 is attached to the support board 33 itself to increase the moment of inertia of the anti-vibration support leg 30, and the vibration of the hollow base panel 40 causes the anti-vibration support leg 30 to shake. The case may be avoided. In the second embodiment and the modified examples described above, the case where the hollow base panel 40 described in the first embodiment is used has been described. However, a desired floor impact sound level can be obtained only by disposing the weight 60. In this case, a conventional floor base panel such as a particle board may be used.

  In each of the above embodiments, a plurality of hollow base panels 40 may be used. In this case, the rigidity and sound insulation of the floor can be further improved. In this case, it is preferable to overlap the hollow base panels 40 so that the extending directions of the cavities 41 of the hollow base panels 40 are different. If the extending directions of the cavities 41 are different, the propagation speed of the vibration in the same direction is different for each hollow base panel 40, so that the vibration energy can be attenuated by the deviation of the vibration between the hollow base panels 40. It is.

  In each of the above embodiments, the vibration energy transmitted to the support board 33 is reduced by reflecting the vibration energy propagating through the hollow base panel 40 at the boundary between the hollow portion and the solid portion of the hollow base panel 40. Although the case has been described, the vibration energy transmitted to the support board 33 is reduced by increasing the difference between the impedance of the support board 33 and the area of the floor base panel such as the hollow base panel 40 on the support board 33. It may be. Specifically, the density or rigidity of the area of the floor base panel on the support board 33 and the density or rigidity of the support board 33 may be set to be significantly different. For example, the hollow base panel 40 described above may be used as a highly rigid floor base panel. Further, a normal woody material may be used for the support board 33. Further, for example, the material of the floor base panel or the support board 33 may be changed (for example, a material whose acoustic impedance is significantly different from that of a wooden material, such as a metal, a stone, or a high-density resin) or the shape may be changed.

  In each of the above embodiments, as shown in FIG. 17, a cavity 41A having an upper opening is formed in a region on the support board 33 of the hollow base panel 40, and a screw (or a bolt) 42 is used in the cavity 41A. If the hollow base panel 40 is fixed to the support board 33, the hollow base panel 40 can be easily fixed to the support board 33. In the case where the hollow base panel 40 on the support board 33 vibrates when it is not fixed and integrated, one that moves upward and one that moves downward coexist. In this way, when the hollow base panel 40 is fixed and integrated, when vibrating, the phases of the plurality of hollow base panels 40 on the support board 33 match, Rotation applied to the anti-vibration support legs 30 is suppressed, and the excitation force on the floor slab is reduced.

  Also, as shown in FIG. 18, a concave portion 43 and a convex portion 44 fitted in the concave portion 43 are provided on the side surface of the hollow base panel 40 so that the hollow base panels 40 can be easily and accurately coupled and fixed. Good. It goes without saying that the technology shown in FIGS. 17 and 18 may be applied to floor base panels other than the hollow base panel 40. As shown in FIG. 19, a fitting portion 45 that fits into the cavity 41 of the hollow base panel 40 is provided on the support board 33 of the vibration proof support leg 30, and the hollow base panel 40 and the vibration proof support leg 30 are connected to each other. May be easily and reliably coupled and fixed.

  In each of the above embodiments, the case where the hollow base panel in which the substantially trapezoidal cavity 41 is formed is described. However, as shown in FIG. 20, the cavity 41 has a triangular shape (shown by (A) in the figure). ) Or a square shape (shown by (B) in the figure), a circular shape such as a perfect circle (shown by (C) in the figure) or an ellipse. May be provided in the up-down direction (shown by (D) in the figure). In addition, although the case where the hollow base panel 40 is made of only a thin wooden piece has been described, the upper or lower surface of the hollow base panel 40 may be made of a decorative board, and may be made of various materials such as plastics and metal materials. May be.

  Further, in each of the embodiments described above, the case where the present invention is applied to the hollow base panel in which the internal cavity 41 extends in the direction parallel to the floor surface has been described, but a hollow base panel having a honeycomb structure as shown in FIG. Of course, it can be widely applied to various hollow base panels. Note that FIG. 21 shows a case where the region that comes into contact with the support board 33 is filled with the above-described member 41E, but it is needless to say that the region may have a solid structure in advance.

  Further, in each of the above-described embodiments, as shown in FIG. 22, the support board 33 may be configured to be shared by a plurality of anti-vibration support legs 30. In this way, not only can the number of parts of the vibration-proof supporting legs 30 be reduced, but also the stability and rigidity of the floor can be improved by an increase in the contact area between the support board 33 and the floor base panel.

It is a figure showing the sound insulation floor of a dry type sound insulation double floor structure concerning a 1st embodiment of the present invention. It is a perspective view of an anti-vibration support leg. It is the elements on larger scale of the hollow base panel used for a sound insulation floor. It is a figure offered to explanation of a manufacturing method of a hollow foundation panel. It is a figure showing the sound insulation floor of a dry type sound insulation double floor structure concerning a 2nd embodiment of the present invention. It is a figure offered to description of the arrangement position of the weight of a hollow base panel. It is a figure for explaining the effect of a weight. It is a figure for explaining the effect of a weight. It is a figure which shows the simulation result in the case of not arrange | positioning a weight and the case of arrange | positioning. It is a figure offered for explanation of a modification of a hollow foundation panel. It is a figure offered for explanation of a modification of a hollow foundation panel. It is a figure offered for explanation of a modification of a hollow foundation panel. It is a figure offered for explanation of the modification of the arrangement position of a weight. It is a figure offered for explanation of the modification of the arrangement position of a weight. It is a figure offered for explanation of the modification of the arrangement position of a weight. It is a figure offered for explanation of the modification of the arrangement position of a weight. It is a figure offered to explanation of the modification of the fixing method of a hollow base panel. It is a figure offered to explanation of the modification of the fixing method of a hollow base panel. It is a figure offered to explanation of the modification of the fixing method of a hollow base panel. It is a figure offered for explanation of a modification of a hollow foundation panel. It is a figure offered for explanation of a modification of a hollow foundation panel. It is a figure offered for explanation of the modification of a support leg.

Explanation of reference numerals

  10, 100 sound-insulating floor, 20 slab, 30 anti-vibration support leg, 33 support board, 40 hollow base panel, 41 hollow, 50 finishing material, 55 core , 55a, 55b ... connecting plate, 60 ... weight, 70 ... laminate.

Claims (6)

In a floor structure supporting a floor base panel with a plurality of support legs,
A floor structure, wherein a weight is disposed between a support member of the support leg that supports the floor base panel and the floor base panel. In a floor structure supporting a floor base panel with a plurality of support legs,
A floor structure, wherein a weight is attached to a support member for supporting the floor base panel of the support leg. In a floor structure supporting a floor base panel with a plurality of support legs,
A floor structure, wherein a density of a support member of the support leg that contacts the floor base panel and a region of the floor base panel that contacts the support member are different. In a floor structure supporting a floor base panel with a plurality of support legs,
A floor structure, wherein a rigidity of a support member of the support leg that contacts the floor base panel and a region of the floor base panel that contacts the support member are different. The floor structure according to any one of claims 1 to 4, wherein a support member of the support leg that is in contact with the floor base panel is shared by at least two or more of the support legs. In a floor base panel used for a floor structure supporting the floor base panel by a plurality of support legs,
The floor base panel, wherein a region that contacts the support leg is formed solid, and a plurality of cavities is formed in a region that does not contact the support leg.

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