JPH0626185A - Movable floor construction - Google Patents

Abstract

PURPOSE:To provide excellent soundproof effect in movable floor construction bearing a floor by a floor board bearing device mounted on the floor foundation. CONSTITUTION:Movable floor panels 16 of intermediate specific gravity fiber boards forming hard layers 16b and 16b having specific gravity of 0.8-1.2 on both sides are arranged on bearing 3 of a floor board bearing device, and finish floorings 18 are laid on the panels through a blinding sticking member 17, if necessary, to have movable floor construction. the hard layers of the movable floor panels 16 act as sound insulation layers against a shock acted on the floor, an the center layer 16b having comparatively low specific gravity acts as a sound absorbing layer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor structure for constructing floorboards on a floor of an apartment house, an office or the like at predetermined intervals.

[0002]

2. Description of the Related Art Conventionally, a pedestal installed on a floor base and a pedestal for supporting a supporting plate are connected by a supporting column, and the supporting column is relatively rotated through a through hole formed in the supporting plate. By the floor plate supporting device configured to adjust the height interval between the pedestal and the pedestal is known, the flooring panel on the support plate of this floor plate supporting device, a discarding material if necessary,
And a finishing material is placed and constructed to obtain a floor structure.

In such a floor-standing structure, the pedestal formed of an elastic body provides a comfortable walking feeling through the elastic action of the pedestal, and also provides a soundproof floor surface by cushioning the impact applied to the floor surface. To be done.

[0004]

However, as a flooring panel in the conventional flooring structure described above, generally,
Although an inexpensive particle board is used, the particle board is made by pressing and adhering wood shavings with an adhesive, and when a shock is applied to the surface side of the board,
Since the impact force is propagated to the back side via the wood shavings that make up the board, the sound insulation performance is inherently low.

For this reason, the impact force acting on the floor surface propagates through the flooring panel made of particle board, the support plate of the floor plate supporting device, the seat, and the column, and reaches the pedestal directly. It was difficult to obtain sufficient soundproof performance only by the elastic action.

[0006]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned drawbacks of the prior art and to provide a novel flooring structure capable of exhibiting excellent soundproofing performance.

That is, in the floor placing structure according to the present invention, the pedestal installed on the floor base and the pedestal supporting the support plate are connected by the support column, and the support column is mounted through the through hole formed in the support plate. A floorboard supporting device configured to adjust the height interval between the pedestal and the pedestal by relative rotation, a flooring panel installed on the support plate of the floorboard supporting device, and a flooring panel installed on the floorboard supporting device. The flooring panel is a combination of a flooring material and a flooring panel, characterized in that the flooring panel is composed of medium specific gravity fiberboard having hard layers having a higher specific gravity than the central layer in the thickness direction on the front and back. .

The hard layer is preferably exposed at least on the back surface side of the floor placement panel.

[0009]

[Function] As the flooring material panel to be installed on the support plate of the floor plate supporting device, since the medium specific gravity fiberboard having the hard layers having higher specific gravity than the central layer in the thickness direction on the front and back is used, the hard layer is sound-insulated. The center layer having a relatively low specific gravity functions as a layer and also as a sound absorbing layer, and the synergistic effect of these layers provides excellent soundproofing performance.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a floor structure according to an embodiment of the present invention. A pedestal 1 is placed on a floor base 19, columns 2 supported by the pedestal 1 in an upright state, and a support plate 3. A floor plate support device is used, which is fixedly attached to the support plate 3 and configured to receive a seat 4 to which the upper end portion of the pillar 2 is attached. The floor plate support device is mounted on the support plate 3 of the floor plate support device. 1
6, the discarding laminated board 17 and the floor material 18 are placed and constructed.

By forming the pedestal 1 of the floor board supporting device from an elastic body such as rubber, foamed rubber, synthetic resin, or foamed synthetic resin, it is possible to absorb and absorb impact force.
The shape of the pedestal 1 is arbitrary and is not limited to the substantially trapezoidal cross section shown in the figure, and may be, for example, a rectangular shape or a square shape. Further, by making the bottom surface of the pedestal 1 a concave-convex surface and attaching a fibrous material to the bottom surface or electrostatically implanting fibers, it is possible to more effectively absorb the impact force.

The pillar 2 is made of metal, synthetic resin or the like.

The pillar 2 has a round bar 6 at the lower end having an outer diameter corresponding to the diameter of the non-through hole 5 formed in the central portion of the upper surface of the pedestal 1, and a non-circular shape of the pedestal 1 formed above the round bar 6. Through hole 5
The collar portion 7 having a diameter sufficiently larger than the diameter of the collar portion and the bolt portion 8 extending above the collar portion 7 are integrally formed. A groove 9 is formed at the tip of the bolt portion 8. The support rod 2 is supported rotatably relative to the pedestal 1 by inserting the lower end round bar 6 into the non-through hole 5 of the pedestal 1.

As the support plate 3, plywood (LVL, LVB) is used.
Etc.), fiber board, particle board, wood board, synthetic resin board, etc., and each side has a square shape of 5 to 20 cm and an arbitrary thickness. The length of one side is 5 to 20 cm, because if it is smaller than this, the holding area of the floor placement panel described later becomes insufficient, and if it is larger than this, it causes an increase in weight and becomes unwieldy.

At the center of the support plate 3, the bolt portion 8 of the support 2 is provided.
The through hole 10 having a diameter sufficiently larger than the diameter is formed.

On the surface of the support plate 3, an adhesive layer (not shown, whose surface is coated with a release paper) is laminated on the surface of the support plate 3 to facilitate the construction of the flooring panel 16 on the support plate 3. be able to.

The seat 4 made of metal or synthetic resin is formed with a nut portion 11 at the lower end on which a female screw for screwing the bolt portion 8 of the column 2 is engraved, and an enlarged diameter is formed above the nut portion 11. And a cylindrical portion 1 at the upper end which is above the receiving collar 12 and is fitted into the through hole 10 of the support plate 3.
And 3 are integrally formed. The upper end tubular portion 13 is adhesively fixed to the through hole 10 of the support plate 3 using an adhesive. Alternatively, after the upper end tubular portion 13 is inserted into the through hole 10, the upper end tubular portion 13 may be caulked from the upper portion, and the tip end opening may be widened to be fixed. Adhesion and fixing by caulking may be used together.

In the illustrated embodiment, a female screw hole 14 into which the bolt portion 8 of the column 2 is screwed is engraved throughout the seat 4. The female screw hole 14 is opened on the upper surface of the floor material support device, and a screwdriver is inserted through this opening so that the bolt portion 8 can be rotated.

On the other hand, as the flooring panel 16, the hard layer 16 having a higher specific gravity than the center layer 16a in the thickness direction.
A medium specific gravity fiberboard having b and 16b on the front and back is used (FIG. 2).

The medium specific gravity fiberboard has an overall specific gravity of 0.4 to 0.8.
And the hard layers 2 and 2 each having a layer thickness of 0.3 to 3 mm and a specific gravity of 0.8 to 1.4 are provided on the front and back portions. in this way,
Since the hard layers 2 and 2 having higher specific gravity and excellent tensile strength and compressive strength than the central layer 1 are arranged on the front and back portions, they are lightweight and have a large bending strength and a small amount of change in deflection with respect to load. .

The hard layers 16b and 16b on the front and back sides have a sound insulating effect, and the central layer 16a having a low specific gravity has a sound absorbing effect.

Since the hard layers 16b, 16b have a large specific gravity and are impermeable to water, at least one of the hard layers is exposed on the surface, and the exposed hard layer is used so as to be the lower surface side. Moisture absorption can be suppressed, and expansion and contraction due to changes in water content in the floor placement panel 16 can be prevented.

Such a floor panel 16 is defibrated and added with an adhesive or the like, and dried wood fibers are deposited on a screen conveyor by a forming device in a process of manufacturing a wood fiberboard by a dry method, for example. A medium specific gravity fiber board is used, which is obtained by temporarily pressing to obtain a wood fiber mat, then cutting the wood mat into a constant size to obtain a standard length wood fiber mat, and then heat-pressing this.

In the above manufacturing process, if the amount of the adhesive added to the wood fibers is increased, the hard layers 16b, 16b are formed to have a larger layer thickness. Further, water is applied to the upper surface or the lower surface of the standard length wood fiber mat, or a water-retaining sheet-like material such as nonwoven fabric, paper, cloth, etc. When heated in this state, heating and pressing are performed with the water content of the front and back portions being increased, so the layer thickness of the hard layer increases. In this way, the layer thickness of the hard layer can be adjusted.

Since the low specific gravity thin surface layer is formed in the obtained medium specific gravity fiber board by precure of the adhesive at the time of heating and pressing, the low specific gravity thin surface layer is removed by sanding, and the hard layers 16b, 16b are removed. Is preferably exposed.

The floor mounting panel 16 is mounted on the support plate 3 so as not to cover the female screw hole 14 of the receiving seat 4 in the floor plate supporting device.

After the flooring panel 16 has been constructed, the discarding adhesive material 17 is adhered on it without any gaps, and the finishing floor material 1
8 is attached and constructed, and a floor-standing structure is obtained.

As the discarding adhesive material 17, plywood, particle board, wood fiber board, veneer laminated material and the like are used, but it is optimal to use medium specific gravity fiber board having the same structure as the flooring panel 16. .

Examples of the finished floor material 18 include a wooden floor, a wooden floor with a cushioning material attached to the back surface, a rug such as a carpet, a floor tile, a tatami mat, and the like. Further, the floor can be constructed by applying a floor coating material on the surface of the discarding laminated plate 25.

It should be noted that the flooring material 18 may be directly installed on the flooring panel 16 to form a flooring structure without using the discarding laminated board 17.

[0031]

According to the present invention, since the floor board supporting device and the floor placing panel are provided as separate members, it is possible to attach the floor board supporting device after cutting the floor placing panel to a required size during construction. Construction can be done efficiently and at low cost.

As the flooring material panel, a medium specific gravity fiberboard having hard layers having higher specific gravity than the central layer in the thickness direction on the front and back is used, so that the sound insulating property of the hard layer, the sound absorbing property of the central layer, and Combined with the cushioning property due to the elastic action of the pedestal of the floor board supporting device, a floor placing structure having extremely excellent soundproofing performance can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view showing a floor structure according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a floor placement panel used in the floor placement structure of FIG.

[Explanation of symbols]

 1 pedestal 2 post 3 support plate 4 receiving plate 5 non-through hole 6 round bar 7 collar part 8 bolt part 9 concave groove 10 through hole 11 lower end nut part 12 receiving flange part 13 upper end tubular part 14 female screw hole 15 void 16 placement floor Panel 16a Center layer 16b Hard layer 17 Discarded plywood 18 Floor material 19 Floor base

Claims (2)

[Claims] 1. A pedestal installed on a floor base and a pedestal supporting a support plate are connected by a support, and the support is relatively rotated through a through hole formed in the support plate. A floorboard supporting device configured to adjust the height interval between the seat and the floorboard supporting device constructed on the support plate of the floorboard supporting device, and a flooring material constructed on the flooring panel are combined. In the flooring structure, the flooring panel is made of a medium specific gravity fiberboard having a hard layer having a higher specific gravity than the central layer in the thickness direction on the front and back. 2. The floor placing structure according to claim 1, wherein the hard layer is exposed at least on the back surface side of the floor placing panel.