JPH07252926A - Floor panel for double floor - Google Patents

Abstract

PURPOSE:To elable the execution of work without requiring extra manhours even when there is an obstruction, etc., on a floor backing, and to lighten a floor panel for double floors and improve workability. CONSTITUTION:Holes 2 for fixing more than the number of bearing legs 1 are formed extending over the whole surface of a panel 3. The upper end sections of the bearing legs 1 are mounted into a plurality of the arbitrary holes 2 for fixing, and the bearing legs 1 are installed so as to be projected to the lower sections of the panels 3. The holes 2 for fixing at places, where an obstruction on a floor backing is avoided, are selected, and the bearing legs 1 can be set up. The volume of the panel 3 is reduced by the volume section of the holes 2 for fixing by forming a large number of the holes 2 for fixing, thus lightening the panel 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-floor floor panel formed by providing a space for wiring electric wires and the like.

[0002]

2. Description of the Related Art A double floor in which a space for wiring electric wires and piping is provided in the floor has been conventionally provided as seen in Japanese Utility Model Laid-Open No. 63-83334 and Japanese Patent Laid-Open No. 2-162223. Has been done. The double floor uses a floor panel created by attaching multiple support legs to the lower surface of the panel, and by placing a number of floor panels side by side on a floor base formed of concrete slabs, etc. Are placed in a state that they are floated from the floor base with support legs, and after attaching the discarding pasting plate to the floor panels that are arranged in large numbers and fixing each floor panel, by applying the floor finishing material on the discarding pasting plate. It can be installed, and it is possible to provide a space for wiring electric wires and the like under the panel which is supported by the support legs while being floated from the floor base.

Here, the floor panel A is provided by punching fixing holes 2 at four corners and the center of a panel 3 formed of a particle board as shown in FIG.
It is created by attaching the upper end portion of the support leg 1 to each fixing hole 2 as shown in (b).

[0004]

As described above, the panel 2 is used.
When placing the floor panel A, which is created by attaching the support legs 1 to the respective fixing holes 3 of 1 above, when there is an obstacle such as an electric outlet on the floor substrate, If the support legs 1 are located at the floor panel A, the floor panel A cannot be placed. Therefore, in this case, the support leg 1 located at the obstacle is removed, and a hole is formed in the panel 2 at a location different from the fixing hole 2 in the construction site.
By reattaching the support leg 1 to this hole, it is necessary to deal with the obstacle, which requires time and effort for construction.

Further, the panel 2 of the floor panel A is generally formed of a particle board, but the particle board has an apparent specific gravity of about 0.7 to 0.8,
The thickness is about 20 to 25 mm. Therefore, 910 mm
The panel of size 910 mm has a weight of about 13 kg per sheet, and there is a problem that workability such as transportation is poor.

The present invention has been made in view of the above points, and construction can be performed without trouble even if there are obstacles or the like on the floor base, and the workability is improved by reducing the weight. It is an object of the present invention to provide a double-floor floor panel that can be formed, and to provide a double-floor floor panel that has higher strength and is excellent in workability such as cutting and nailing.

[0007]

In the floor panel of the double floor according to the present invention, a larger number of fixing holes 2 than the number of supporting legs 1 are provided in the panel 3 over the entire surface, and fixing is performed at arbitrary plural positions. The upper end portion of the support leg 1 is attached to the use hole 2 and the support leg 1 is attached so as to protrude below the panel 3.

In the present invention, the panel 3 may be formed by molding a molding material prepared by adding wood powder to hard resin. Further, in the present invention, it is preferable to form the panel 3 using a molding material prepared by adding 10 to 20% by weight of wood powder to the hard resin.

[0009]

The fixing holes 2 of which the number is larger than the number of the supporting legs 1 are provided over the entire surface of the panel 3, and the fixing holes 2 are provided at arbitrary plural positions.
Since the upper end of the support leg 1 is attached to the support leg 1 and the support leg 1 is attached, the support leg 1 can be attached by selecting the fixing hole 2 at a position avoiding an obstacle on the floor base.
There is no need to newly perforate the panel 3 at the construction site in order to avoid obstacles, and by providing a large number of fixing holes 2 in this way, the volume of the fixing hole 2 is equal to the volume of the panel 3. Becomes smaller and the panel 3 can be made lighter.

When the panel 3 is made of a molding material prepared by adding wood powder to a hard resin, the panel 3 having high strength can be formed by the hard resin, and a large number of fixings can be made. Even if the holes 2 are provided, sufficient strength can be secured, and the addition of wood powder facilitates cutting and nailing.

[0011]

EXAMPLES The present invention will be described in detail below with reference to examples. The panel 3 is formed as a rectangular plate, and the panel 3 has fixing holes 2 penetrating the upper and lower surfaces thereof. The number of the fixing holes 2 is much larger than the number of the supporting legs 1 to be attached to the panel 3, and as shown in FIG. 1A, the fixing holes 2 are arranged in a grid pattern at substantially equal intervals over the entire surface of the panel 3 vertically and horizontally. It is provided. In the embodiment shown in FIG. 1A, the size of the panel 3 is W ₁
= 909 mm, W ₂ = 909 mm, and the spacing between the fixing holes 2 is set to L ₁ = 101 mm and L ₂ = 100 mm.
By providing a large number of fixing holes 2 much larger than the number of the supporting legs 1 in this way, the volume of the panel 3 can be reduced by the volume of the fixing holes 2, and the panel 3 can be made lighter and transported. Is easy to handle.

Male ends 6 are respectively projected on the end faces of the two adjacent sides of the panel 3, and female ends 7 are recessed on the other end faces of the two adjacent sides of the panel 3, respectively. Further, an elastic cushioning material (elastomer) 8 such as soft polyvinyl chloride or rubber is attached to the end surface of the panel 3 by adhesion or the like. The cushioning material 8 may be provided on the end surface where the female seed 7 is recessed as shown in FIG. 4A, or on the end surface where the male seed 6 is projected as shown in FIG. 4B, or both. Either may be provided.

If the panel 3 is made of a particle board as in the conventional case, it is impossible to provide a large number of fixing holes 2 as described above due to its strength problem. For this reason, in the present invention, the panel 3 is made of a hard resin having a high strength such as a hard polyvinyl chloride resin so that a large number of fixing holes 2 can be provided while maintaining a sufficient strength. . When the hard resin is molded in this way to form the panel 3, a large number of fixing holes 2 can be formed in the panel 3 simultaneously with the molding by the molding die, and the large number of fixing holes 2 are formed. This will eliminate the increase in man-hours. Further, the hard resin has a smaller dimensional change due to the coefficient of thermal expansion and moisture absorption than the particle board and the like, so that the panel 3 having high dimensional stability can be obtained.

However, a hard resin such as a hard polyvinyl chloride resin has a poor cutting property with a saw and has a weak nail holding power and a poor nailing property. Therefore, in the present invention, a hard resin is prepared by adding wood powder. The panel 3 formed by molding a molding material is used. When the wood powder is mixed with the hard resin in this way, the characteristics of wood are added to the resin, so that the cutting property can be improved and the nail holding power can be improved to improve the nailing property. is there. The amount of wood powder added is preferably set in the range of 10 to 20 parts by weight with respect to the hard resin. If the addition amount is less than 10 parts by weight, it is difficult to sufficiently obtain the effect of improving the cutting property and nailing property by the addition of wood powder, and if the addition amount exceeds 20 parts by weight, the ratio of the hard resin is The strength of the panel 3 may decrease and the strength of the panel 3 may become insufficient.

Further, a joist 9 made of wood such as LVL (laminate veneer lumber; laminated veneer), particle board, plywood, solid wood or artificial wood is embedded and attached to the upper surface of the panel 3. The joist 9 is shown in Fig. 1.
As shown in FIG. 2, a plurality of panels 3 are provided in parallel so as to extend from one side edge of the panel 3 facing the other side edge. Figure 1
In the embodiment, the distance between the joists 9 is set to C ₁ = 303 m.
m and C ₂ = 151.5 mm.
Even if the joist 9 is provided so that its upper surface is flush with the upper surface of the panel 3 as shown in FIG. 5 (a), the upper surface of the joist 9 is shown in FIG. 5 (b).
It may be provided so as to protrude from the upper surface of the panel 3 as described above.

FIG. 3 (a) shows a supporting leg 1 made of a metal cylindrical rod or the like.
And a grounding piece 1a is provided at the lower end thereof.
FIG. 3B shows a female screw cylinder 4, which has a cylindrical shape with an outer diameter substantially equal to the inner diameter of the fixing hole 2 and an inner diameter substantially equal to the outer diameter of the support leg 1. A female screw 11 is provided on the inner surface of the outer peripheral portion, and a flange 12 is integrally provided on the outer peripheral middle step.

As shown in FIG. 2, the upper part of the female screw cylinder 4 is inserted from the lower surface into the fixing holes 2 at several places (for example, 5 places) of the large number of fixing holes 2 provided in the panel 3 with an adhesive. And the female screw cylinder 4 into the fixing hole 2 in this manner.
After mounting, the support leg 1 is attached to the fixing hole 2 via the female screw cylinder 4 by screwing the male screw 5 of the support leg 1 into the female screw 11 on the inner circumference of each female screw cylinder 4 from below and screwing it. The work of attaching the support legs 1 of the panel 3 can be performed at the construction site. Generally, the support legs 1 are attached to the four corners and the center of the panel 3, but the obstacles are placed on the floor substrate 13. When there is a hole, select the fixing hole 2 at a position avoiding this obstacle, and select the fixing hole 2
The support leg 1 is attached to the.

In constructing the double floor, the support leg 1 is attached to the panel 3 so as to project from the lower surface thereof as described above to form the floor panel A, and the floor panel A is prepared.
6 is placed on the floor base 13 formed of concrete slab or the like as shown in FIG. 6A, and the panel 3 of the adjacent floor panel A is placed.
While being connected by fitting the male seed 6 and the female seed 7, a large number of floor panels A are vertically and horizontally arranged and placed on the floor base 13.
At this time, the unevenness of the floor base 13 is caused by the internal thread 11 of the internal thread cylinder 4.
Adjusting the screwing depth of the male screw 5 of the support leg 1 to the support leg 1
Can be absorbed by moving up and down, and the panel 3 can be arranged horizontally. Further, even if it is necessary to cut the panel 3 when constructing the floor panel A in this way, the panel 3 has good cutting performance due to addition of wood powder,
It can be easily cut at the construction site with a saw.

Panel 3 of floor panel A adjacent to each other as described above
Is tightly coupled by fitting male 6 and female 7, it is possible to prevent the roll and ups and downs of panel 3, and to dispose the discarding plate over panel 3 as in the conventional case. 6A and 6B, a floor finishing material 14 such as a decorative floorboard is placed on the panel 3 as shown in FIGS. 6A and 6B, and nails 15 are attached from the floor finishing material 14 to the panel 3 as shown in FIG. The floor finishing material 14 can be stretched directly on the panel 3 by driving it into the joists 9 to finish the floor (in FIG. 6B, the fixing holes 2 are part of the panel 3). Shown only in the other panel 3
Is not shown). Since the joists 9 are made of wood, they have a high holding force for the nails 15, and can firmly fix the floor finishing material 14. See also panel 3
Since the cushioning material 8 is interposed between the side ends of the adjacent panels 3 when the male and female 6 and 7 are fitted together, it is possible to prevent the generation of a creaking noise even if the panels 3 are rubbed with each other. It is possible to prevent the ringing of the floor.

In the double floor constructed as described above, since the panel 3 of the floor panel A is supported by the support legs 1 in a state of being floated from the floor base 13, the lower side of the panel 3 is not supported. The space can be a space for wiring electric wires and the like. Further, since the panel 3 is provided with a large number of fixing holes 2 vertically opened in addition to the place where the supporting legs 1 are attached, it is possible to obtain an effect of absorbing sound by the fixing holes 2. Is.

[0021]

As described above, according to the present invention, a larger number of fixing holes than the number of supporting legs are provided on the entire surface of the panel, and the upper ends of the supporting legs are attached to the fixing holes at arbitrary plural positions. Since the support legs are attached so as to project below the panel, it is possible to attach the support legs by selecting the fixing holes at positions that avoid obstacles on the floor base and avoid obstacles. Since it is not necessary to newly drill holes in the panel at the construction site to attach the support legs to the position, it is possible to perform the construction without trouble even if there are obstacles on the floor base. is there. Moreover, by providing a large number of fixing holes in this way, the volume of the panel can be reduced by the volume of the fixing holes, the panel can be made lighter, and workability such as transportation can be improved.

Further, since the panel is made by molding a molding material prepared by adding wood powder to hard resin, a large number of fixing holes are held by the hard resin while maintaining sufficient strength. It is possible to form a panel provided with and to simultaneously provide a large number of fixing holes in the panel at the time of molding, and it is possible to eliminate an increase in the number of steps due to the large number of fixing holes. In addition, by mixing the wood powder, it is possible to improve the cutting property of the panel by the saw and improve the nail holding power to improve the nailing property.

Further, 10 to 2 wood powder is added to the hard resin.
Since the molding material prepared by adding 0% by weight was used, the effect of improving the cutting property and nailing property by adding wood powder can be sufficiently obtained without the strength of the panel becoming insufficient. Is something that can be done.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is a plan view and FIG. 1B is a front sectional view.

FIG. 2 is a partial cross-sectional view of the above.

3A and 3B show an embodiment of the present invention, in which FIG. 3A is an enlarged perspective view of a support leg, and FIG. 3B is an enlarged perspective view of a female screw cylinder.

FIG. 4 shows a panel of one embodiment of the present invention,
(A), (b) is a partially expanded sectional view, respectively.

FIG. 5 shows an embodiment of the present invention (a),
(B) is sectional drawing of a part of a panel and a floor finishing material, respectively.

6A and 6B show an embodiment of the present invention, in which FIG. 6A is a cross-sectional view of a double-floor construction state, and FIG. 6B is a partially cutaway plan view of the double-floor construction state.

FIG. 7 shows a conventional example, (a) is a plan view,
(B) is a sectional view.

[Explanation of symbols]

 A Floor panel 1 Support leg 2 Fixing hole 3 Panel

Claims (3)

[Claims] 1. A panel is provided with a number of fixing holes larger than the number of supporting legs, and the upper ends of the supporting legs are attached to the fixing holes at a plurality of arbitrary positions so as to project below the panel. A double-floor floor panel, characterized in that it is equipped with support legs. 2. The double-floor floor panel according to claim 1, wherein the panel is formed by molding a molding material prepared by adding wood powder to a hard resin. 3. A floor panel for a double floor according to claim 2, wherein a molding material prepared by adding 10 to 20% by weight of wood powder to a hard resin is used.