JPH08151781A - Subfloor system for double floor, and constructing method therefor - Google Patents

Abstract

PURPOSE: To eliminate complicated mechanism for adjustment of floor height and to effectuate sound insulation by a method wherein disk-like elastic support base members produced of a polymer material are attached to the underside of floor panels, and unevenness, if not extending to a great degree, can be absorbed by self-deformation of the support base members. CONSTITUTION: A double floor-like structure is formed of floor panels 12 and support legs, and floor finishing materials such as floorings, carpets, vinyl sheets, tatami mats or the like are laid on the floor panels 12. As the support leg, an elastic support base member 15, is made up in a disk-like shape of a polymer material. The support base member 15 is put on the subfloor surface, being attached to the floor panel 12 on one side of the adjoining floor panels 12, and the floor panel 12 on the other side of the adjoining floor panels is placed on the exposed part of the elastic support base member 15. A compound panel in slipped-off lamination, made up beforehand by laminating two woody boards 12-1 and 12-2 into a united body with slipping-off made in the breadthwise direction, is used. The compound panels are laid successively, being butted against one another, in a construction site and thereby grouped floor panels 12 are constructed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double floor base system for applying floor finishing materials such as flooring, carpets, vinyl sheets, tatami mats and the like on double floor and non-floor floor panels by means of floor panels and supporting legs, and a system therefor. Regarding the construction method.

[0002]

2. Description of the Related Art Conventionally, carpets and the like have been widely used as floor finishing materials for apartment houses and the like, but in recent years, wood-based finishing materials such as flooring have been increasing due to natural return, prevention of ticks, and the like. In that case, the impact noise of falling objects on the floor, moving chairs, walking, etc. was transmitted to the downstairs and caused noise pollution, so improvement was required. As a countermeasure, a direct attachment method by adding cushioning material to the flooring itself, and as a double floor type, a cushioning pedestal of rubber or plastic etc. is provided on the grounding part on the supporting leg of the floor panel, and the supporting leg is supported by bolts, nuts, etc. The double floor construction method with adjustable height was often used. In the double floor construction method, many kinds of products can be used because it is possible to apply a finishing plate on the installed floor panel if necessary and then apply any finishing material such as flooring, vinyl cushion sheet, carpet, tatami mat, etc. is there. As the floor panel, particle board with a thickness of 20 to 25, which is generally homogeneous and stable in price, is used.
The size is 910 x 450-1200, 600 x 1
For various types such as 800, the supporting legs are all combinations of height adjustable bolts and receiving seats, cushion rubber is attached to the ground portion, and the supporting interval is 450 to 600 mm.

Among these types, the type in which particle boards are 20 mm thick and 600 × 1800 and the supporting legs are provided in the middle of the adjacent floor panels at intervals of 600 mm or 450 mm, there is no step between the adjacent panels and Only one type of panel covers a relatively large area, and the combination work on site is simple, so it is widely used. FIG. 3 shows an example thereof.
The floor panel indicated by reference numerals 1 and 2 in FIG.
A particle board with a size of about 800 and a thickness of 20 mm is used. On the other hand, as a support leg, about 20t × 90 ×
The plywood block 3 of 90 has a special nut 4 attached thereto, and a stud bolt 5 is screwed into the plywood block 3 and a rubber mold cushion material 6 is attached to the tip (lower end) thereof. Then, while the support leg makes the rubber mold cushion material 6 sit and stand on the floor panel 1,
A gap 7 of about 0 to 13 mm is opened and placed on the plywood block 3. At that time, the floor panels 1 and 2 are temporarily fixed with the double-sided adhesive tape 8 previously attached to the plywood block 3, and then screwed from the upper surface later. The floor panels 1 and 2 were firmly fixed with nails or the like. The gap 7 is necessary for adjusting the height of the supporting leg by rotating the bolt. This is completed as a floor base, but a plywood 9 of 5.5 to 12 mm was stuck and fixed on the floor panels 1 and 2 as a scrapboard depending on the type of floor finishing material. At that time, the joints of the plywood 9 were displaced so as to come out of the gap 7 formed by the floor panels 1 and 2.

FIG. 3B shows an example in which each floor panel is constructed.
A floor panel 1 having support legs temporarily fixed at one end at intervals of about 450 mm like 1-1 to 1-4 is placed on the joist 10. Next, the floor panel 2 to which the supporting legs are attached like 2-1 to 2-4 is placed on the plywood block in the supporting legs 1-1 to 1-4 with a gap 7 of about 10 mm opened.
This procedure was repeated in both directions of the X-axis and the Y-axis, and the last remaining half-length portion was cut and adjusted according to the unnecessary dimension. Reference numeral 11 indicates joints of the plywood 9 which is subsequently attached as a scrapboard from the upper side.

In such a method, the floor panel to be handled has a size of 20 t × 600 × 1820 and is considerably heavy at about 16 kg / sheet, and the strength is unbalanced because the 600 intervals in the short side direction are weak. In addition, since the gap 7 has a width of 10 to 13 mm, the number of cases in which the scrapboard 9 must be used together has increased.

[0006]

In the last double floor substratum system described above, the floor panel does not have additional features such as machining the mounting holes of the bolt receiving nut with only a simple 600 × 1800 cut. Although it is inexpensive, it uses about 20 kg of particle board and weighs about 16 kg / sheet, which requires physical strength in transportation and handling locally, and there has been a demand for weight reduction. Therefore, it is possible to reduce the plate thickness, but it is still good that the spacing of the support legs is 450 mm on the long side of the floor panel, and the shorter 600 mm pitch of the floor panel bends from the viewpoint of load resistance. There were many problems, and there was a problem. Also, since the support legs are provided in the middle of the adjacent floor panels, there is no step and it is easy to adjust the unevenness, and the number of support legs per unit area is small, so it is economical, but a receiver that receives both floor panels. The structure of the seat and the nuts, bolts attached to it, the cushioning material at the bottom, etc. is complicated and the height of the support leg is adjusted by rotating the bolt top from the floor with a screwdriver. 1
It was necessary to open a large gap of 3 mm, and in many cases it could not be used as a floor base as it was, and it was generally necessary to cover the upper surface with a scrapboard.

Therefore, an object of the present invention is to provide a double floor base system and a method of constructing the same which are excellent in workability without requiring a complicated floor height adjusting mechanism.

[0008]

The double floor substratum system provided by the present invention comprises a floor panel and support legs to support flooring, carpet, vinyl sheets, tatami mats, etc. In a double-floor base system for applying a floor finishing material, a disk-shaped elastic support base member is used as a support leg, and the elastic support base member has a low height and a large outer diameter, and a floor panel. It is attached to the lower surface of the so that it can cope with some unevenness of the floor surface due to its own deformation and can also function as a sound insulation. In a preferred embodiment, the elastic support base member has a thin and long grounding columnar member and a thick and short deflection limiting columnar member in a group on the lower surface side, and has a concentric circular groove on the upper surface side. It is better to have a circumferential jetty partitioned by it. The support leg may have a variable height by using the elastic support base member as a main body and directly attaching only this to the lower surface of the floor panel or attaching it through a wood-based spacer. The floor panel shall have two wood boards shifted in any width direction and overlapped to each other to have a step portion on each side edge. Adjacent floor panels are closely joined by engaging the step portions with each other. It is preferable that the elastic supporting base member is supported from the lower side of the tightly coupled portion. It is preferable that the two wooden boards use single-sided glass net embedded particle boards and are laminated and integrated so that the glass net embedded surfaces are opposite to each other.
In the floor panel, it is preferable that the lengthwise and widthwise dimensions are set to a ratio of 1: 2, and the intervals between the elastic support base members are set at the same pitch in both the lengthwise and the widthwise directions.

The method of constructing a double floor base system provided by the present invention is a floor finishing material such as flooring, carpet, vinyl sheet, tatami mat, etc. In the double-floor underlaying system, a disk-shaped elastic support base member made of a polymer material is used as a support leg, and the elastic support base member is preliminarily attached to one floor panel side of the adjacent floor panels. Is placed on the floor surface, and the other adjacent floor panel is placed and laid on the exposed portion of the elastic supporting base member. As a floor panel, two wooden boards are displaced in any width direction, and a laminated composite panel that is pre-laminated and integrated is used. Good to build.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a double floor base system of the present invention. (A) is a front sectional view and (b) is a plan explanatory view.

Reference numerals 12-1 and 12-2 are made of single-sided glass net-embedded particle boards, and the floor panel 12 is constructed by stacking them. In that case, the board 12-1 on the lower side has the embedding surface of the glass net 13 on the lower side, and the board 12-2 on the upper side has the embedding surface of the glass net 13 on the upper side, and the glass net embedding surfaces are opposite to each other. I'm on the side. This is to offset the so-called one-sided warpage effect in which the surface opposite to the embedding surface is warped due to moisture absorption due to the presence of the embedded glass net 13. These boards 12-1 and 12-2 are each 9 mm thick and 910 × 18.
A standard size of 20 improves. 14 is a wood-based spacer such as plywood, and has a required thickness t of 70 × 70. Reference numeral 15 denotes an elastic support base member, which is formed into a disk shape from a polymer material such as rubber or plastic. The spacer 14 and the elastic support base member 1
5 is piled up like a block and the lower surface of the floor panel (lower board 12-
It is screwed to 1). If it is not necessary to raise the floor height, the spacer 14 is not necessary and only the elastic support base member 15 is directly attached and fixed to the floor panel. There are various conceivable positions at which the support legs mainly including the elastic support base member 15 are attached to the floor panel 12, but in the present embodiment, 910 × 1820.
Support legs 17-1 to 17-at the center and one side edge along the longitudinal direction with respect to the floor panel 12 of standard size.
4 and 17-5 to 17-8 are arranged at an interval of 450 mm. In the floor panel 12 of this embodiment, the lower board 12-1 is laid and then the upper board 12-2 is coated with an adhesive while shifting the joints, and the upper and lower boards are firmly fixed with screw nails or wood screws 16. Are bound to. FIG. 1B shows a support leg unit in which the spacer 14 and the elastic support base member 15 are combined with each other or, in some cases, the elastic support base member 15 alone is added to the floor panel 12 having the two-layer structure as described above. 17-1 to 17
8 shows a scattered structure of −8, and the distance between the supporting leg units adjacent to each other in the X and Y directions in the drawing is 450 mm,
The row of support leg units arranged in the X and Y directions is the floor panel 12.
The support leg units 17-5 to 17-8 in a row are attached in advance so that one half is exposed on one side along the X axis of the floor panel 12, and , The supporting leg unit 17-8 at one end of the row and the supporting leg unit 17 at one end of the other row
-4 is attached in advance so that one half is exposed at one side along the Y axis of the floor panel. First, the lower board of the floor panel 12 thus constructed with legs is placed on the joist 18 with two legs without vertical and horizontal sides, and similar lower boards are laid in the X and Y directions. .
At this time, the vertical and horizontal sides of one of the adjacent lower boards without legs are placed on the exposed portions of the other support leg unit, so that the adjacent lower boards are abutted against each other. In that case, if the joints 19 formed by butting adjacent lower boards are in close contact with each other, it may be rubbed at that portion and cause floor squeal. Therefore, one side corner of the lower board 17 has a rubber tape of about 1 to 2 mm. Or a spacer tape 20 such as foam tape is attached and a slight gap (1
It is better to open up to ~ 2mm). Also, in one corner of the room, the extra length is cut to complete the spreading of the lower board.

After the lower board has been spread as described above, the upper board of the floor panel 12 is coated with an adhesive while the joints 19 are displaced and fixed with lap screw nails or wood screws to complete the spread of the upper board. . At this time, the upper board can still function as a scrapboard, and the floor finish from the upper side can be any kind of member without delay. In this case, the weight of the floor panel 12 (single-sided glass net embedded particle board) to be handled is 9/20 × 3/2 to 6 with a thickness of 9/20 and a size of 3/2 times.
Since 7.5% is 10.8 kg, it is greatly reduced compared to the conventional particle board, and from the viewpoint of strength, all support intervals are 450 mm and balanced, and the total thickness is reinforced by glass net. It became 18 mm, and the bending strength was balanced at any point, and the fracture strength was improved compared to the conventional one.
Table 1 shows the verification. Table 1 below is a comparison between the double-floor substrate system of this example and the conventional double-floor substrate system (of FIG. 3) in terms of flexural measurements and breaking loads.

[0013]

[Table 1]

FIG. 2 concretely shows the elastic support base member 15 which is the main body of the support leg applied in the system, and is a long and slender columnar member for grounding on the downward surface of the disk-shaped main body 150 having a diameter of 70φ. A group of 151 and a group of thick and short deflection-restricting columnar members 152 are provided in a geometrical arrangement, and on one upward surface, a concentric circular groove 153 and a circumference partitioned by the circumferential groove 153 are provided. Jetty 15
4 (25φ, 45φ, etc.) are provided. The grounding columnar member 151 is 5φ, 5H, and the deflection limiting columnar member 152
Is 9φ, 4H, and the total thickness of the elastic support base member 15 is 15 mm. The elastic support base member 15 of the present embodiment is a rubber molded product so that the rubber hardness can be selected depending on the application, load and the like. According to the elastic supporting base member 15 as described above, the impact force is absorbed by the deformation of the grounding columnar member 151 against the impact of a falling object, and the deflection limiting columnar member 152 is grounded against a large load. The deformation up to the main body 150 is suppressed. Even the minute irregularities on the floor can be dealt with by the circumferential jetty 154 or the like on the upper surface.

In the above-described embodiment, as a method for constructing the double floor base system, the lower board and the upper board of the floor panel are assembled in a stepwise manner. It is also possible to prefabricate and assemble in advance. In that case, the upper and lower boards,
It should be installed by shifting in the X and Y directions by the required width, and the on-site handling weight should be 22 kg, which is twice the case of the above-mentioned embodiment, and it is necessary for two people to hold it, but there is a merit to simplify the on-site work. . Further, although the 9t single-sided glass net-embedded particle board was used in the previous embodiment, the invention is not limited to this, and particle board, plywood or a combination thereof may be used.

[0016]

According to the double floor base system and the method for constructing the same of the present invention as described above, the floor height adjusting mechanism is not required, and the simplification, the material cost and the reduction of the man-hour become remarkable. The minute unevenness of the floor surface can be absorbed by the elastic support base member itself, and the sound insulation characteristics are improved. The floor height can be adjusted by adding a spacer that can be obtained at low cost. By dividing the floor panel into two pieces and using a single-sided glass net embedded particle board, it is possible to achieve a significantly lighter weight than conventional ones, and it is economical to use the standard size of 900 × 1800, which has good marketability. Since the elastic support base member is inexpensive and the mounting method is simple, even if the support interval is 450 mm, it is not very expensive, and the performance is remarkably stabilized. By applying a single-sided glass net embedded particle board, it is possible to make a thin floor panel, and the problem of warpage due to moisture absorption can be used without problems by stacking two sheets in opposite directions. It is also possible to combine the functions of a wasteboard by stacking two stacked floor panels, making it economical because no special wasteboard is required for any finishing material. Therefore, the intended purpose of providing a double-floor substrate system and its construction method with excellent workability without the need for a complicated floor-height adjusting mechanism is sufficiently achieved. It is possible and has great practical value.

[Brief description of drawings]

1A and 1B show an embodiment of a double floor base system according to the present invention, in which FIG. 1A is a front sectional view and FIG. 1B is a plan explanatory view.

FIG. 2 shows an embodiment of an elastic support base member which is a main body of a support leg used in the double floor base system according to the present invention, and (a) is a front sectional view (A-A ′ of (b)). (Cross section), (b) is an explanatory view of a state in which a flat surface and a bottom surface are made to live together.

FIG. 3 shows an example of a conventional double floor base system, (a)
Is a front sectional view, and (b) is a plan explanatory view.

[Explanation of symbols]

12 Floor Panels 12-1, 12-2 Single-sided Glass Net Embedded Particle Board 13 Glass Net 14 Spacer 15 Elastic Support Base Member 17-1 to 17-8 Support Leg Unit 150 Disk-shaped Main Body (Elastic Support Base Member) 151 Ground Column member for use 152 Column member for deflection restriction 153 Circumferential groove 154 Circumferential jetty

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minor Kaneda 3-1-1 Sukegawa-cho, Hitachi-shi, Ibaraki Hitachi Rubber Processing Co., Ltd.

Claims (8)

[Claims] 1. A double-floor base system for applying floor finishing materials such as flooring, carpet, vinyl sheet, and tatami on a double-floor and non-floor panel by means of floor panels and supporting legs. A double-floor base system, wherein the elastic support base member is formed in a disk shape, and the elastic support base member is attached to the lower surface of the floor panel with a low height and a large outer diameter. 2. The elastic support base member has a thin and long grounding columnar member and a thick and short deflection limiting columnar member in a group on the lower surface side, and has a concentric circular groove on the upper surface side. 2. The double-floor base system according to claim 1, further comprising a circumferential jetty partitioned by the partition. 3. The height of the support leg is variable by using the elastic support base member as a main body and directly attaching only this to the lower surface of the floor panel or attaching it through a wooden spacer. The double floor base system according to claim 1. 4. The floor panel is formed by stacking two wood-based boards by shifting them by a required dimension in any width direction and stacking them to each other so that each side edge has a step portion. The double-floor flooring system according to claim 1, characterized in that the elastic support base member is supported from below the tightly bonded portion by interlocking the members with each other. 5. A single-sided glass net-embedded particle board is used for both of the two wood-based boards, and they are laminated and integrated so that their glass net-embedded surfaces are opposite to each other. The double floor base system described in 4. 6. The double-floor flooring system according to claim 4, wherein the floor panel has vertical and horizontal dimensions of 1 to 2, and the elastic support base members are arranged at the same pitch in both vertical and horizontal directions. 7. A double-floor base system for applying floor finishing materials such as flooring, carpet, vinyl sheet, tatami mat, etc. to a double-floor and non-floor panel by a floor panel and supporting legs, and a polymeric material as the supporting legs. By using the elastic support base member formed in a disk shape by the above, the elastic support base member is laid on the floor surface in a state where it is previously attached to one floor panel side of the adjacent floor panel, and the other adjacent floor panel is applied. A method for constructing a double-floor foundation system, which comprises laying down on an exposed portion of an elastic support base member. 8. As a floor panel, a shift-bonded composite panel in which two wood-based boards are shifted in any width direction and preliminarily laminated and integrated is used, and the shift-bonded composite panels are sequentially butted and joined at the site without a gap. A method for constructing a double-floor foundation system, which is characterized by constructing a group of floor panels.