JP3595929B2 - Flooring panel and floor structure thereby - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a floor structure using floor panels for a building such as an apartment house.
[0002]
[Prior art]
As a conventional floor structure of this kind, a large pulling material is installed on a skeleton slab via a vibration isolating rubber, a joist is placed on the large pulling material, and the joist is discarded on the joist. A tatami mat, a flooring or a carpet, etc., on which a finish has been applied, or a panel with anti-vibration support legs of about 500 to 1000 mm square (accordingly, the anti-vibration support interval is also 500 to 1000 mm) is arranged on the slab. Above, a vibration isolating floor finished with a flooring or a tatami mat was generally used. In a conventional free access floor for business use, a floor base panel with supporting legs (for example, a 500 mm square panel made of aluminum, resin, etc.) is spread without gaps, and is discarded or pasted thereon. Was doing.
[0003]
However, the above-mentioned conventional floor structure is as narrow as about 500 to 1000 mm between the vibration-isolating support legs, and there is a support point in the lower slab middle part of the rigidity of the building structure slab, and the number of the support points is large. There were problems such as poor sound insulation performance (floor impact sound performance). In order to improve the sound insulation performance, it is necessary to increase the distance between the supporting legs, but in that case, it is necessary to enlarge the large cross section, and as a result, the finished surface becomes high and the living space becomes narrow In addition, there have been problems such as an increase in cost, difficulty in construction due to labor, and the like. In addition, the conventional joist floor structure has problems such as difficulty in leveling and level adjustment, and the construction is complicated.
[0004]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to provide a floor structure using a floor panel having excellent sound insulation, workability, and economy. .
[0005]
[Means for Solving the Problems]
The floor structure using the floor panel according to the present invention is a floor panel laid on a frame slab of a building such as an apartment house, and has a length substantially the same as an inner dimension in one side direction of a room to be laid. Having a long floor base panel, and supporting legs installed near the end of the skeleton slab, the floor base panel is a long top plate and bottom plate, these A rib that integrally joins the face plates and holds them at predetermined intervals and forms a large number of hollow portions, and support leg mounting grooves integrally formed along the vicinity of both side ends of the long side of the lower surface plate, In a floor structure using a floor base panel made of an aluminum or aluminum alloy metal extruded shape, a step is formed so as to be located above an intermediate portion at both side ends of the long side of the lower surface plate, The support leg mounting groove on the step Is formed, characterized by comprising. Also, the upper plate, the lower plate, and the ribs are configured in a truss structure. Further, the hollow portion is filled with a sound absorbing material and / or a vibration damping material, and these materials are attached to the upper and lower face plates and the ribs. Still further, a hole is appropriately formed in the lower surface plate. Furthermore, the support leg mounting groove is included in the hollow portion. In addition, the invention is characterized in that joining means for connecting to an adjacent floor base panel are provided at both end portions. Further, the floor base panel has a width of 100 to 600 mm. Still further, an anti-vibration rubber is attached to a lower end portion of the support leg. Still further, a floor space is provided between adjacent floor space panels to install the floor space panel. Still further, the present invention is characterized in that an underfloor panel is installed without providing a gap between adjacent underfloor panels.
[0006]
The floor structure of the floor panel according to the present invention is characterized in that the support legs are attached only to the support leg mounting grooves at the longitudinal ends of the floor substrate panel, and are installed on the building slab of the building. Further, the support leg is characterized in that the support leg is formed of a vibration-proof rubber, a support bracket, a bolt, and a nut. Further, adjacent floor base panels may be provided with a gap between them depending on the purpose of use or the like, and may not be provided with a gap.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a slab which is a building body of a building, and 2 denotes a wall. On the slab 1, a floor base panel 3, a discard material 4 and a finishing material 5 such as flooring material, tatami mat, carpet, etc. are sequentially laminated. ing.
[0008]
The floor base panel 3 is, for example, an extruded metal material such as a long aluminum alloy having a width of about 100 to 600 mm and a length between both side walls 2 of a room to be laid. As shown in FIG. 2, an elongate upper plate 3a, a lower plate 3b having the same shape as the upper plate 3a, and these face plates 3a, 3b are integrally joined and parallel at an interval of about 30 to 300 mm. And a rib 3d forming a large number of hollow portions 3c and a support leg mounting groove 3e integrally provided on the lower side (outer surface) of the lower surface plate 3b.
[0009]
A support leg 6 is mounted in the support leg mounting groove 3e. The support leg 6 includes a frustum-shaped anti-vibration rubber 6a, a support fitting 6b integrally attached to an upper part thereof and having a female thread, a bolt 6c screwed to the support fitting 6b, and a screw 6c. It is composed of a nut 6d for wearing and fixing the support leg 6 to the support leg mounting groove 3e. By rotating the bolt 6c, the height (level) of the floor base panel 3 can be adjusted. A hole 3a 'is opened in the upper surface plate 3a corresponding to the support leg mounting position of the support leg mounting groove 3e, and a tool such as a screwdriver is inserted through the hole 3a' and the bolt 6c is rotated to adjust the level. can do. 6d 'is a lock nut for preventing rotation of the bolt during use, but may be omitted.
[0010]
As shown in FIG. 3, on the slab 1, a large number of floor base panels 3 are separated from each other by a predetermined gap (for example, about 42.8 mm), and are supported by the support legs 6 in a vibration-proof manner. It is juxtaposed. The floor base panel 3 has a length between both side walls 2 of the room, and a support leg 6 for supporting the floor base panel 3 in a vibration-proof manner is mounted on an end of the support leg mounting groove 3e. Thus, only the longitudinal ends of the floor base panel 3 are supported, and the middle part of the floor base panel 3 is not supported.
[0011]
The hollow portion 3c is filled with a sound absorbing material such as glass wool or foam synthetic resin or a viscoelastic vibration damping material alone or in combination, or adheres to the inner surface of the upper plate 3a or the lower plate 3b or the surface of the rib 3d. By doing so, the sound insulation performance of the floor base panel 3 may be further improved. Further, as long as the necessary structural strength of the floor panel 3 is not impaired, the lower surface plate 3b may be appropriately drilled to further improve the sound insulation performance. In addition, the interval between the floor base panels can be increased.
[0012]
FIG. 4A shows another embodiment in which the support leg mounting groove 3e is formed below the widthwise end of the floor base panel 3, and this configuration makes the floor base panel 3 extremely stable. Can be supported.
[0013]
FIG. 4B shows still another embodiment in which the support leg mounting groove 3e is formed so as to be included in the hollow portion 3c from the lower surface plate 3b of the floor base panel 3, and this structure is used for floor base. There is no protrusion from the surface of the panel 3, and the floor base panel 3 can be stacked flat, thereby reducing transportation costs. Further, damage to the support leg mounting groove 3e during transportation can be prevented. Furthermore, the living space can be widened by lowering the total height of the floor structure. The support leg mounting groove 3e may be provided further inward than the lower plate 3b.
[0014]
FIG. 4 (C) shows still another embodiment in which the support leg mounting groove 3e of the embodiment of FIG. 4 (B) is formed at the end in the width direction of the floor panel 3 for flooring. In addition to the above advantages, the floor base panel 3 can be extremely stably supported.
[0015]
FIG. 5A shows another embodiment in which the support leg mounting groove 3e is formed in the widthwise end surface of the floor base panel 3, and the lower surface plate 3b is located above the middle portion at both side ends. In this embodiment, a step is formed so as to be positioned, and a support leg mounting groove 3e is formed in this portion. With this configuration, not only can the floor base panel 3 be supported extremely stably, but also, as shown in the figure, the vibration-proof rubber 6a of the support leg 6 attached to the support leg attachment groove 3e is higher than the level of the lower surface plate 3b. It is possible to be located above, so that the overall height of the floor structure can be further reduced and the living space can be further increased. In particular, when the entire support leg 6 can be completely stored above the lower surface plate 3b (on the upper surface plate 3a side), flat stacking is possible even with the support leg 6 attached.
[0016]
FIG. 5B shows another embodiment in which the support leg mounting groove 3e is formed on the end face in the width direction of the floor base panel 3, similarly to the embodiment of FIG. 5A. In this configuration, in addition to the above advantages, a strong structural strength and a stable floor base panel 3 can be provided.
[0017]
In the embodiment of the floor structure shown in FIG. 2, a plurality of floor base panels 3 are arranged side by side at predetermined intervals, but may be laid with the floor base panels 3 contacting each other without gaps. In this case, as shown in FIG. 6A, a protrusion 3f is formed at one end of the floor base panel 3 and a recess 3g is formed at the other end to form a joining means. As described above. In this embodiment, the above-mentioned laminating material 4 can be omitted.
[0018]
【Example】
On a 200 mm RC slab, floor base panels (FIG. 4 (A)) made of an aluminum alloy (JIS A6063 T6 extruded material) and having a width of 541 mm and a height of 70 mm are arranged at intervals of 43 mm. t = 12 mm), flooring (t = 15 mm) is applied on top of the discarded room, the space between the floor slab and the slab is 60 mm, and a 50 mm-thick room with a glass wool (32 kg / m3) is provided. (Soundproofing was also performed on the wall), and an average sound pressure level difference (D value) was measured in a room below the floor where no soundproofing was performed. As a result, a high sound insulation of D-Num = 69 was obtained. When the floor was made only of the skeleton slab and the wall portion was made to have the same condition as a comparative object, D-Num = 51, which proved that the present invention was effective. In addition, the floor impact sound level was as good as light floor attack sound level LL-Num = 34 and heavy floor attack sound level LH-Num = 46.
[0019]
【The invention's effect】
1)
A step is formed so as to be located above the middle part at both side ends of the long side of the lower plate, and a support leg mounting groove is formed in this step, so that the distance from the slab to the floor base panel is The adjustment allowance is increased, and the use form can be expanded.
2)
By forming the upper plate, the lower plate, and the ribs in a truss structure, it is possible to form a lightweight, high-strength flooring panel with a reduced thickness.
3)
The sound insulation performance of the floor covering panel is further improved by filling the hollow portion with a sound absorbing material and / or a vibration damping material, attaching these materials to ribs, etc., and making holes in the lower surface plate as appropriate. I can do it.
4)
By appropriately drilling holes in the lower plate, the sound insulation performance can be further improved.
5)
By configuring the support leg mounting groove so as to be included in the hollow portion, the floor base panel can be stored in a flat-stacked state, and the mounting groove can be prevented from being damaged during transportation.
6)
Providing appropriate joining means at both end portions of the floor base panel makes it possible to stably install adjacent floor base panels without any level difference.
7)
By attaching the vibration isolating rubber to the lower end of the support leg, transmission of vibration between the panel and the frame slab can be suppressed, and the sound insulation performance can be further improved.
8)
By providing a gap between adjacent floor base panels, the cost can be reduced by reducing the number of floor base panels to be installed. Become.
9)
By installing without providing a gap between the adjoining floor base panels, it is possible to omit a laminating material according to the use condition of the floor, which is economical.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view, partially cut away, showing an embodiment of a floor structure of the present invention.
FIG. 2 is a configuration diagram of a floor base panel and support legs of the embodiment of FIG. 1;
3 is a plan view (A) of the floor structure of FIG. 1, a view (A) of FIG. 1 (A), and a view (C) of FIG. 1 (A);
FIG. 4 is a partial structural view (A), (B), and (C) showing another embodiment of the floor base panel.
FIGS. 5A and 5B are partial structural views (A) and (B) showing still another embodiment of the floor base panel.
FIG. 6 is a diagram illustrating an example of a floor base panel suitable for mutual bonding.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 slab 2 wall 3 floor panel 3a upper panel 3b lower panel 3c hollow section 3d rib 3e support leg mounting groove 3f convex section 3g concave section 4 discarded material 5 finishing material 6 support leg 6a anti-vibration rubber 6b support bracket 6c bolt 6d nut 6d 'lock nut

Claims (10)

An underfloor panel to be laid on a building slab of a building such as an apartment house, the panel having a length substantially equal to an inner dimension in one side direction of a room to be laid, and an elongate underfloor panel. , Comprising a support leg installed near the end of the slab, the floor base panel is a long upper plate and lower plate, and these face plates are integrally joined at a predetermined interval. A rib that holds and forms a large number of hollow portions, and a support leg mounting groove integrally formed along the vicinity of both ends of the long side of the lower surface plate, and is made of a metal extruded material made of aluminum or aluminum alloy. In the floor structure constituted by the floor base panel configured, a step is formed so as to be located above an intermediate portion at both side ends of the long side of the lower surface plate, and the support leg mounting groove is formed at the step. underfloor characterized by comprising Floor structure according to the panel. 2. The floor structure according to claim 1 , wherein the upper plate, the lower plate, and the ribs have a truss structure. The floor structure according to claim 1 or 2 , wherein the hollow portion is filled with a sound absorbing material and / or a vibration damping material, or these materials are attached to the upper and lower face plates and the ribs. . 4. The floor structure according to claim 1, wherein the lower surface plate is provided with a hole. 5. The floor structure according to claim 1, wherein the support leg mounting groove is included in a hollow portion. The floor structure according to any one of claims 1, 2, 3, 4, and 5 , wherein joining means for connecting to an adjacent floor base panel are provided at both end portions. The floor structure according to any one of claims 1 to 6 , wherein the floor panel has a width of 100 to 600 mm. The floor structure according to any one of claims 1 to 7 , wherein an anti-vibration rubber is attached to a lower end of the support leg. The floor structure according to any one of claims 1 to 8, wherein the floor base panel is installed with a gap provided between adjacent floor base panels. The floor structure according to any one of claims 1 to 8 , wherein the floor base panel is installed without providing a gap between adjacent floor base panels.

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