KR101421607B1 - Light weight Access floor for constructing the interior of structure - Google Patents

Abstract

The present invention relates to an interior lightweight flooring material having a shock absorbing and soundproofing property and being lightweight and having a convenient construction and high strength. More particularly, the present invention relates to a lightweight double bottomed flooring material comprising a polypropylene foam having a specific density range It is possible to provide a double flooring which is easy to move and construct by forming the upper panel and the supporting block of the double flooring in a block-fitting manner, as well as reducing the burden of the fixed load in the building.

Description

[0001] The present invention relates to a lightweight access floor

The present invention relates to a lightweight panel for a double flooring having a light weight, a convenient construction, a high reliability, and a double flooring using the related parts.

Generally, the double flooring is composed of wood, inorganic, synthetic resin, steel, aluminum, etc. panels and steel support (frame).

In both, inorganic and dual steel systems are commonly used, and both materials can maintain sufficient strength, but the weight is so large that a large load is applied to the entire building.

For example, Korean Patent Laid-Open Publication No. 2006-0067803 discloses a dual flooring panel comprising a single layer structure formed using a composite composition including lightweight aggregate, reinforcing fiber, cement, polycarbonate-based fluidizing agent, etc. . However, even if the above method shows high strength, since the weight including cement is increased, the problem of imposing a large load on the building can not be solved. Further, since the panel material must contain many additive components, there is a problem that the composition is complicated.

Korean Patent Laid-Open Publication No. 2010-0020088 discloses a double flooring comprising a top plate serving as an indoor floor surface and a bottom plate supporting the floor plate made of aluminum. However, even if the above method can provide a lightweight panel, an increase in the construction cost due to the expensive aluminum is caused when the aluminum system is used.

In addition, the steel frame supporting the panel in the double flooring structure is also heavy and has a lot of related accessories, which makes it difficult to construct and requires a lot of time.

SUMMARY OF THE INVENTION In order to solve the drawbacks of the conventional double flooring as described above, it is an object of the present invention to provide a double flooring material which realizes weight reduction by using a polypropylene bead foam on a panel and a support.

Another object of the present invention is to provide a dual flooring which is lightweight and easy to install, and has high strength and high reliability by designing the support frame to be inserted into the panel in a block form and using a height adjusting screw in the support portion.

In order to achieve the above object,

An upper panel having a plurality of holes at a lower end thereof and disposed at regular intervals to serve as an indoor floor surface; And

And a plurality of supports for supporting the upper panel.

Wherein the upper panel or the upper panel and the support are made of a polypropylene foam having a density of 0.03 to 0.45 g / cm3.

The polypropylene foam may be formed from polypropylene or a copolymer thereof having a weight average molecular weight of 100,000 to 500,000.

The support may be a structure that is separated into upper and lower ends and can be connected by screws, a structure composed of a single body without the upper and lower ends, or a structure combining them.

The support may include a top portion including concavities and convexities that can be assembled in a block-fitting manner in a plurality of holes formed in a lower portion of the upper panel, and a lower portion including a screw input port capable of adjusting the height.

Also, the concavities and convexities provided on the support may include four pieces for one support, and may have a height of 10 to 30 mm and a width of 15 to 30 mm. The shape of the concavities and convexities in the support may be circular, rhombic, rectangular or square.

The upper end of the support may include a screw inlet capable of adjusting the height. The upper end and the lower end of the support can be connected by screws.

The screw inlet may have a depth of 30 to 100 mm, a width of 10 to 30 mm, and a screw protrusion formed at the center of the support.

In order to secure a space below the panel, the support base preferably has a smaller diameter at the lower end of the upper end portion. Specifically, the upper end of the support may have a diameter of 100 to 200 mm and the lower end may have a diameter of 50 to 150 mm.

As described above, the present invention can reduce the burden of a fixed load in a building by manufacturing a lightweight, high-strength double flooring using a polypropylene foam as a material of a panel and its support. Further, the present invention adopts a block-fitting method in a double flooring panel and a supporting frame, so that it is easy to move and install, and it is easy to check and repair. Further, the present invention has the effect of providing a double flooring excellent in shock absorbing and restoring force due to the characteristics of the foamed product, and excellent in the heat insulating performance and the floor impact sound blocking performance.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a cross-sectional view of an upper panel of a double flooring according to an embodiment of the present invention. FIG.
FIG. 2 is a schematic cross-sectional view of the upper and lower portions of the support member forming the lower part of the double flooring according to an embodiment of the present invention.
3A and 3B are respectively a plan view (lower part) and a perspective view (upper part) of the support of the double flooring according to another embodiment of the present invention.

Hereinafter, the lightweight double flooring according to the embodiment of the present invention will be described in detail.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an access floor having a function that is easy to accommodate equipment such as a wiring for electric power and communication communication or an air conditioner in a lower part used in a building, an office, Relates to a lightweight panel for a dual flooring which can be made lightweight by being manufactured using a polypropylene foam having a specific density as a material of the double flooring, and a related part thereof.

That is, the present invention provides a double flooring using a polypropylene bead foam on a panel and a support to induce weight reduction.

In addition, the present invention is designed such that a support block is fitted to a panel in block form for ease of construction, and a panel and a support for lightweight but high- .

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and novel features of the present invention will become more apparent from the detailed description set forth below when taken in conjunction with the accompanying drawings.

According to an embodiment of the present invention, there is provided an air conditioner comprising: an upper panel having a plurality of holes at a lower end thereof, And a plurality of supports for supporting the upper panel, wherein the material of the upper panel or the upper panel and the support is made of a polypropylene foam having a density of 0.03 to 0.45 g / Can be provided.

The present invention is characterized in that a polyolefin-based bead foam having a specific density range as described above is used for both the upper panel or the upper panel and the support in manufacturing the double flooring, thereby providing a lightweight double flooring having good impact absorption and soundproofing .

In the double flooring of the present invention, the polyolefin bead foam is preferably a polypropylene foam (EPP) and may have a bead shape.

In the present invention, when EPP having a specific density only for the upper panel is used, the supporting member may be formed of foam PP, which is the same material as the upper panel. However, commercially available materials such as steel materials can be applied according to the preference of the constructor. The thickness of the upper panel may be 30 to 80 mm.

The polyolefin-based foam may be formed from a polypropylene having a weight average molecular weight of 100,000 to 500,000 or a copolymer thereof. If the density of the polypropylene foam is less than 0.03 g / cm 3, there is a problem such as strength and gait feeling of the double bottom material. If the density exceeds 0.45 g / cm 3, the weight can not be realized.

EPP used in the present invention is a polypropylene bead foam which is excellent in impact absorbability and resilience and is a non-toxic material having excellent durability, chemical resistance, oil resistance and water resistance. Also, the EPP has excellent repetitive buffering properties, no toxic gas generation, and does not release environmental hormones as compared with expanded polystyrene (EPS). Furthermore, the EPP has good cold resistance and heat resistance, and can be used in a wide temperature range from -40 ° C to 130 ° C.

Accordingly, in the present invention, by constructing the double flooring using EPP, it is possible to provide a high-strength lightweight panel, and it is possible to reduce the burden of the fixed load in the existing building.

Further, in the present invention, a plurality of holes are formed at the lower end of the upper panel so that the support block can be inserted into the block at the time of forming the double flooring, thereby simplifying the installation and construction of the building. Therefore, it is preferable that at least two irregularities for fitting into the holes of the upper panel are provided on the upper part of the support. Most preferably, the irregularities include four of one support.

Further, in order to adjust the height, the present invention can provide a panel and a support for a dual flooring which is lightweight and easy to install, high strength, and high in reliability, by using a height adjusting screw in a support portion.

Accordingly, the present invention can be easily carried and installed, shortening the construction time, and facilitating inspection and maintenance for each part. In addition, the double flooring made of EPP has a low surface friction noise generated when EPS is used as a panel, and is excellent in the floor impact sound isolation performance, so it is possible to produce a comfortable atmosphere without vibration and noise.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which: FIG. As will be understood by those skilled in the art, the embodiments described below can be modified into various forms without departing from the concept and scope of the present invention.

As described above, according to the present invention, there is provided a floor panel having an upper panel having a plurality of holes arranged at regular intervals, and a plurality of supports having a plurality of holes, To provide a double flooring.

At this time, the upper panel of the double flooring of the present invention may have the structure shown in Fig. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a cross-sectional view of an upper panel of a double flooring according to an embodiment of the present invention. FIG.

1, the structure of the upper panel 10 of the double flooring includes an upper end 11 of the flooring upper panel, a lower end 12 of the flooring upper panel, and a plurality of holes 13 at the lower end of the flooring upper panel do.

As shown in FIG. 1, the upper end of the upper panel of the double flooring is formed to have a predetermined size, and the size thereof can be appropriately changed according to the size of the interior of the building. Preferably, the aspect ratio of the upper end of the raised flooring may be between 1 and 1.5.

In the lower part of the panel, there are dozens of holes 13 so that the support block can be inserted. In order to reduce the noise, the edge of the panel can be subjected to a finish treatment in which the contact between the panels is minimized.

That is, the number of the plurality of holes formed in the lower end of the upper panel may be formed according to the number of the concave / In the plurality of holes formed in the lower end of the upper panel, the distance between the holes is not particularly limited, but may be 10 to 30 mm. Further, the depth of the holes can be appropriately adjusted in accordance with the height of a support stand to be described later. In addition, the size of the hole may be larger than the diameter of the concave and convex so that the concave and the convex formed on the support can be block-fitted into the hole formed in the panel.

Next, the lower structure of the double flooring according to the present embodiment will be described in more detail.

According to the present invention, the lower structure of the double flooring includes a support, which can be divided into a top and a bottom and can be connected with a screw, a structure composed of a single body without separating the top and bottom, It is also possible. The support base may be formed by block-fitting a plurality of holes formed in the lower portion of the upper panel to form the double flooring.

FIG. 2 is a perspective view of upper and lower ends of a support member forming a lower part of the double bottom according to an embodiment of the present invention.

2, in the double flooring according to the present embodiment, the lower part shows the support 2. The support base is composed of two parts, an upper end part (20) and a lower end part (21). Accordingly, in the present invention, the support base of Fig. 2 is structured such that the upper and lower ends thereof are separated from each other and can be connected by screws, and the height can be adjusted by the lower end portion.

The support may include an upper portion including concavities and convexities that can be assembled into a plurality of holes formed in a lower portion of the upper panel in a block-fitting manner, and a lower end portion including a screw inlet capable of height adjustment. Also, the upper end of the support may include a screw inlet capable of adjusting the height. The upper end and the lower end of the support can be connected by screws.

Specifically, the upper part of the upper part 21 of the support may include concave and convex parts 24, and a height adjusting screw insertion opening 23 may be formed in the lower part of the upper part.

The upper end portion 21 may be formed with at least two, preferably four, concave and convex portions 23 for one support for fitting with the upper panel 10. Further, the lower end portion 22 is a portion that can serve as a screw for adjusting the height. Each of these two parts has a screw insertion opening (23) for inserting a height adjusting screw and is connected through the screw.

That is, although not shown in the drawing, the lower end portion 22 of the support base is formed with a height adjusting screw insertion opening 23, and can be coupled with a screw insertion opening formed on the lower face of the upper end portion through the screw 25. With this structure, the upper end and the lower end of the support can be combined to complete the structure of the support. Further, the screw may be selectively used according to the height of the floor of the building.

Further, the support base 20 has a smaller diameter of the lower end portion 22 than the upper end portion 21 for securing a space under the panel.

The concave and convex portions 23 provided on the support may have a height of 10 to 30 mm and a width of 15 to 30 mm. The shape of the concavities and convexities in the support may be circular, rhombic, rectangular or square.

The screw inlet may have a depth of 30 to 100 mm, a width of 10 to 30 mm, and a screw protrusion formed at the center of the support.

For example, the diameter of the upper end of the support may be 100 to 200 mm, and the diameter of the lower end may be 50 to 150 mm.

3A and 3B are a plan view (lower part) and a perspective view (upper part), respectively, of the support of the double flooring according to another embodiment of the present invention. 3A and 3B, the uneven portion of the support may be 50 to 100 mm.

According to the present invention, the support 30 shown in FIG. 3 is an integral support, and may be formed as a single body without distinction between the upper end and the lower end, 2 supports are possible. At this time, a hole 32 is formed in the lower end of the supporting base of Fig.

For example, if the support of FIG. 3 is positioned at the upper end and the support of FIG. 2 is positioned at the lower end, the support is formed to be higher, which results in a wider panel bottom space.

On the other hand, the panel structure of the double flooring is merely for illustrating the present invention, and the present invention is not limited to the illustrated example. Therefore, the above structure can be variously modified depending on the number of holes in the lower end portion of the upper panel and the configuration of the unevenness of the support.

The EPP access floor made of the polypropylene foam according to the present invention is not only lightweight but also has the same construction as the panel part shown in FIG. 1, It is advantageous in that the construction is convenient by adopting the block-inserting method of the hole 13 of the support base and the support base unevenness 24 of FIG. 2 or the unevenness 31 of the support base of FIG. That is, although not shown in the drawing, the unevenness of the support of FIG. 2 is assembled in a block-fitting manner in the hole of the upper panel of FIG. 1 to provide a double flooring, which is very simple to install. In addition, since the panel and the support part are made of one material after the flooring material is demolished, the present invention is eco-friendly because it is easy to treat waste.

In addition, existing double flooring may be used before closing the floor construction, blocking floor impact sound, and suppressing. However, the present invention provides a double flooring material for use before an interior floor finish after a floor construction finish, and refers to a double flooring material for inserting an electric wiring or an air conditioning system or the like of an office or the like under the floor.

Further, in the present invention, if the shape of the support is different, it is possible to design the support so that two or more supports can be used. In addition, the present invention can provide a structure in which a finish material can be installed directly on a product, and both a workability and a walking feeling can be satisfied. In addition, according to the present invention, the use of the same material (PP) except for a part of metal part is high in reusability and recyclability.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course.

10: Top panel of flooring
11: upper part of the flooring upper panel
12: Lower part of the flooring upper panel
13: hole at the lower end of the flooring upper panel
20: Support
21: upper end of the support
22: Lower end of the support
23: Height adjusting screw inlet
24: Unevenness of Support
25: Screw
30: Integrated support
31: unevenness of the support
32: hole at the bottom of the support

Claims (9)

An upper panel having a plurality of holes at a lower end thereof and disposed at regular intervals to serve as an indoor floor surface; And
And a plurality of supports for supporting the upper panel.
The material of the upper panel or the upper panel and the support may be,
And a polypropylene foam having a density of 0.03 to 0.45 g / cm < 3 > formed from polypropylene or a copolymer thereof having a weight average molecular weight of 100,000 to 500,000.
delete 2. The apparatus of claim 1,
A structure which can be connected by screws separated from the upper and lower ends,
A structure consisting of a single body without upper and lower boundaries, or
And a combination thereof.
The method of claim 3,
The structure, which is separated from the support by upper and lower ends and is connectable by screws,
An upper portion including concavities and convexities that can be assembled into a plurality of holes formed in a lower portion of the upper panel in a block-
A structure comprising a lower end portion including a screw inlet capable of adjusting the height
Wherein the flooring is a double flooring.
5. The method of claim 4,
The concavities and convexities include four for one support,
A double flooring having a height of 10 to 30 mm and a width of 15 to 30 mm.
5. The method of claim 4,
Wherein the upper end of the support further comprises a screw inlet capable of adjusting the height.
5. The method of claim 4,
Wherein an upper end portion and a lower end portion of the support base are connected through a screw.
5. The method of claim 4,
Wherein the screw inlet has a depth of 30 to 100 mm and a width of 10 to 30 mm and is provided with a screw projection at a central portion of the support.
5. The method of claim 4,
Wherein the diameter of the upper end of the support is 100 to 200 mm and the diameter of the lower end is 50 to 150 mm.

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