KR200440950Y1 - Upper board and raised access floors system with the same - Google Patents

Abstract

Provided is a top plate with improved strength, water resistance and damping resistance and a reduced thickness and a double bottom system having the top plate. A double bottom system according to an embodiment of the present invention has a top plate including a plate-like member and a reinforcement plate attached to the plate-like member. The reinforcement plate may be formed by treating kraft paper impregnated with resin by a high pressure laminate (HPL) process, or composed of TEGO plywood. In order to improve vibration damping or to improve water resistance, a vinyl sheet may be attached. The top plate of this configuration is supported by a support plate including a support plate for supporting the top plate, a leveling bolt screwed to a nut provided on the support plate, and a support rubber provided between the leveling bolt and the slab.

Top plate, ancient plywood, laminate, HPL, strength, water resistance, vibration damping

Description

UPPER BOARD AND RAISED ACCESS FLOORS SYSTEM WITH THE SAME}

The present invention relates to a double bottom system, and more particularly, to a top plate with improved strength, water resistance and vibration damping and a reduced thickness and a double bottom system having the top plate.

Due to the advantages of utilizing the lower space, the double-floor system, which has long been used in commercial applications such as computer rooms, is usually made of a top plate, a support plate for supporting the top plate, and the support plate is screwed to the support plate, A leveling bolt for leveling the top plate, and a support rubber provided at the bottom of the leveling bolt.

However, the conventional double floor system does not effectively suppress various problems such as interlayer noise (light floor impact sound and / or heavy floor impact sound) reduction performance and high load generated in the ondol heating layer.

Therefore, the above-mentioned double floor system is not applied to apartment houses such as apartments, that is, residential so far.

Therefore, in order to apply the above-mentioned double floor system to a multi-family house, the development of a high strength top plate must be essentially preceded.

In addition, the top plate is also required to minimize the thickness to ensure a sufficient lower space.

However, in general, since the thickness and strength of the top plate are proportionally increased and decreased, there is a problem that the lower space is reduced when the thickness is increased to increase the strength, and when the thickness is decreased to increase the lower space, the strength is increased. There is a problem that is lowered.

In addition, the top plate should be excellent in water resistance to reduce the damage caused by moisture emitted from the wet heating structure. This is because when the top plate is made of a wood material, the strength of the top plate is lowered due to absorbed moisture or moisture, which causes problems such as bottom cracking or depression.

In order to improve the water resistance, conventionally, a method of attaching a waterproof sheet to the surface of the upper plate, applying a mother permeable waterproofing agent, or forming a waterproof coating film is used.

However, this can only improve the water resistance of the top plate, and the effect cannot be obtained in terms of strength improvement and thickness reduction.

Therefore, as mentioned above, the conventional double-floor system is not applied to a common house such as an apartment, ie residential.

Accordingly, the present invention has an object to provide a top plate with improved strength, water resistance and vibration damping and reduced thickness.

Another object of the present invention is to provide a double-floor system that can be applied to a multi-family house by providing the top plate.

The first object of the present invention described above,

As the top plate of the double bottom system supported by the support,

Plate-shaped member; And

It can achieve by the upper board containing a reinforcement board attached to the said plate-shaped member.

In an embodiment of the present invention, the reinforcing plate is formed by treating a kraft paper impregnated with resin (melamine, phenol, TiO _2, etc.) by a high pressure laminate (HPL) process, or by using a TEGO plywood Can be configured.

The reinforcing plate may be attached to a vibration damping sheet or coated with a vibration damping paint to improve the vibration damping, and may also be attached to the vinyl sheet to improve the water resistance.

Of course, it is also possible to use the said vibration damping sheet (or vibration damping paint) and a vinyl sheet simultaneously.

In constituting the upper plate of the above configuration, the plate-like member may be formed of a particle board (PB), or may be formed of a sandwich structure including the upper plate and the lower plate and a reinforcing material disposed between the plates.

The reinforcement plate may be attached to at least one of the upper and lower surfaces of the plate member.

Since the strength of the top plate of such a configuration is increased by the reinforcing plate, there is an effect that the thickness of the plate member can be reduced. Moreover, it is also possible to improve damping resistance and water resistance by attaching a damping sheet (or vibration damping paint) and / or a vinyl sheet to the reinforcing plate.

The double bottom system having a top plate of such a configuration further includes a support for supporting the top plate, which is installed between the support plate for supporting the top plate, a leveling bolt screwed to a nut installed on the support plate, and between the leveling bolt and the slab. It includes support rubber.

The top plate according to the embodiment of the present invention is improved in strength and water resistance by the reinforcing plate, the damping resistance is improved by the damping sheet (or vibration damping paint), and the water resistance can be further improved by the vinyl sheet.

Therefore, while reducing the thickness of the plate member compared with the prior art, it is possible to improve the strength, water resistance and vibration damping, there is an effect that can easily secure the lower space of the upper plate.

In addition, the use of the upper plate of the above configuration can increase the spacing of the support for supporting the upper plate than in the prior art, it is possible to improve the construction speed and reduce the number of the use of the support to reduce the cost, etc. .

Hereinafter, an embodiment of the present invention with reference to the accompanying drawings in detail as follows.

Figure 1 shows a schematic diagram of a double floor system having a top plate according to an embodiment of the present invention.

As shown, the double floor system 100 according to an embodiment of the present invention by the support 10 to form a lower space between the plurality of supports 10 and the slab 30 arranged at regular intervals A top plate 20 is supported.

The support 10 used in the double bottom system 100 is largely composed of a support plate 12, a leveling bolt 14 and a support rubber 16.

One end of the leveling bolt 14 is screwed into a nut 12 'installed on the support plate 12, and a bolt head (not shown) provided at the other end of the leveling bolt 14 is detachable from the support rubber 16. Possibly and rotatably coupled.

The leveling bolt 14 is a part that serves to adjust the height of the support plate 12, the density and material of the thread is important. The more dense the screw thread, the more precise the height can be adjusted. However, the construction speed is slow and the defect of the screw thread is likely to occur. Therefore, it is preferable to use a bolt of a certain size.

For example, as the leveling bolt 14, a bolt of KS B1002 standard having a diameter of 5 to 20 mm and a length of 20 to 200 mm can be used.

The support plate 12 is a part that serves to stably support the top plate 20, a through hole is formed in the center of the support plate 12, the nut 12 'is inserted into the through hole, the support plate 12 An adhesive tape (not shown) for adhering to the upper plate 20 is attached to the upper surface.

The support plate 12 may be made of metal, plastic, inorganic material, wood, or the like, and preferably uses a plate-shaped wood to enable nailing fixing for integration with the top plate 20.

In addition, the upper surface of the support plate 12 at the position where the nut 12 'is inserted is provided with an adhesive accommodating groove 12 "for accommodating the applied adhesive.

On the other hand, at the nut end of the leveling bolt 14, an engagement portion (not shown) for a rotary tool, that is, a straight or cross groove is formed. Therefore, the height of the support plate 12 can be adjusted by rotating the leveling bolt 14 using a rotating tool, for example, a driver.

At least one key groove (not shown) is formed in the entire length direction of the leveling bolt 14, for example, by a predetermined length from the nut 12 ′ end of the leveling bolt 14. The key groove serves as a path to allow the adhesive contained in the adhesive receiving groove of the support plate 12 to be supplied to the support rubber 16, and the number and depth of the key grooves are designed in consideration of the fluidity of the adhesive to be used.

Of course, it is also possible to use hollow leveling bolts instead of leveling bolts with keyways.

As the adhesive, the fluidity is good so as to easily flow down, and an epoxy, vinyl, or water-based adhesive having a curing rate of 1 hour to 24 hours may be selectively used, or an adhesive developed separately may be used.

In addition, the upper plate 20 according to the embodiment of the present invention installed on the support plate 12 includes a plate member 22.

The plate member 22 is a particle board (PB: Particle Board), plywood (Plywood), MDF (Medium Density Fiberboard), HDF (High Density Fiberboard), OSB (Oriented Standard Board), etc. ) It can be made of inorganic materials such as cement board, concrete cement board, synthetic resin, steel, aluminum, etc., or a composite material using two or more materials such as wood and aluminum at the same time.

However, considering the stiffness and ease of processing, the wood system is preferable. Particularly preferable plate-like members are particle board, plywood, MDF, OSB, inorganic board, and the like, and more preferably, particle board is used.

1 shows an embodiment in which a particle board is used as the plate member 22.

Here, the particle board is a plate-like product having a density of 500 to 900 kg / m ³ by molding and hot pressing by adding a synthetic resin adhesive to particles of wood and other plant fibers, that is, cutting pieces or crushed pieces.

These particle boards are gradually divided from single layer board, three-layer board with different shape and size of small piece of upper and lower layers, and middle layer of upper and lower layers according to the shape of small pieces. There are multilayer boards, etc., which are smaller in size and shape, and any embodiment of the particle board may be used in embodiments of the present invention.

In the upper plate 20 having the plate member 22 having such a configuration, a reinforcing plate 24 is attached to the upper and lower surfaces of the plate member 22.

The reinforcing plate 24 is bonded to the plate member 22 by kraft paper impregnated with resin using a high pressure laminating (HPL) process. Here, kraft paper refers to a packaging paper mainly containing unbleached kraft pulp, which is a kind of chemical pulp, and the resin may be melamine, phenol, TiO _2, or the like. Such kraft paper is also excellent in water resistance.

Therefore, the upper plate according to the embodiment of the present invention, in which the reinforcing plate 24 formed by using kraft paper, respectively bonded to the upper and lower surfaces of the particle board, has various characteristics superior to those of the conventional upper plate made of only the particle board. Could.

According to the experiment of the present inventors, as a result of the local concentrated load test (an experiment for measuring deflection displacement by applying a pressurizer having a constant diameter to a product with a constant force), the deflection amount of 2.6 mm was generated in the conventional upper plate, Only the amount of deflection of 1.73 mm was generated.

As a result of an equal load test (an experiment in which a bag of constant weight was placed in an actual product and measured the deflection displacement), the conventional top plate had a deflection amount of 1.73 mm, but the top plate of the present embodiment had 0.91 mm Only deflection occurred.

Then, as a result of the water resistance test (test to measure the rate of change of thickness after a predetermined time after pouring water on the surface of the product), the thickness of the conventional top plate was 10%, but the top plate of the present example had a thickness change rate of 1.4%. This occurred.

As a result of an impact load test (an experiment in which a sandbag bag of constant weight was dropped on the product at a certain height to determine whether it was broken), the conventional top plate was destroyed, but the top plate of the present example remained in a good state.

Further, as a result of the fracture strength test (an experiment for measuring the load when the product is broken by gradually loading the product), the conventional top plate was broken at a load of 164.3 kg, but the top plate of this embodiment was broken at a load of 176.87 kg. .

As a result of the experiment, it can be seen that the top plate according to the present embodiment is all excellent in localized concentrated load, equally distributed load, impact load, breaking strength and water resistance compared to the conventional top plate.

On the other hand, Figure 1 is attached to the reinforcement plate 24 on both sides of the plate-like member 22, the reinforcement plate 24 may be attached only to any one of the upper surface or the lower surface of the plate-like member 22. have. However, in order to improve the desired strength, it is preferable to attach the reinforcing plate 24 to both surfaces of the plate member 22.

As shown in FIG. 2, the surface of the reinforcing plate 24 may be provided with a damping sheet 26 or coated with a damping coating to improve vibration damping properties.

In addition, as shown in FIG. 3, the vinyl sheet 28 may be attached to the surface of the reinforcing plate 24 to improve water resistance. Of course, it is also possible to waterproof the reinforcing plate 24 in place of the vinyl sheet 28.

Although not shown, the vibration damping sheet 26 and the vinyl sheet 28 may be applied together, and in addition to the vibration damping sheet 26 and the vinyl sheet 28, the surface of the reinforcement plate 24 may have various kinds of overlays. A layer can be formed.

In the above embodiment, the kraft paper impregnated with the resin was laminated with high pressure to form the reinforcing plate 24 as an example.

However, the reinforcement plate 24 may be composed of a TEGO plywood having excellent strength reinforcement and water resistance. The Taego plywood is the official name Phenolic Film Faced Shuttering Plywood, refers to a plywood made by bonding the Taego film impregnated with a thermosetting phenolic resin on the surface of the water-resistant plywood by thermo-pressure.

4 is a schematic configuration diagram showing a top plate structure according to another embodiment of the present invention. The present embodiment is different from the above-described embodiment of FIG. 1 in that the plate-shaped member 22 'of the top plate 20' It is made of a sandwich structure. In the description of the embodiment of Figure 4, the same reference numerals are assigned to the same components as the embodiment of Figure 1, the description thereof will be omitted.

Here, the plate-shaped member 22 'of the sandwich structure is a plate-shaped member 22' which consists of an upper plate 22'a and a lower plate 22'b and a reinforcing material 22'c disposed between the plates. I mean absence.

The plate-like member 22'c having such a configuration can attach the reinforcing plate 24 to the upper surface of the upper plate 22'a and the lower surface of the lower plate 22'b, and although not shown, the upper plate 22 The reinforcement plate 24 may be attached to both the upper and lower surfaces of 'a) and the upper and lower surfaces of the lower plate 22'b.

Here, the reinforcing plate 24 may be formed by high-pressure laminating kraft paper impregnated with the resin, or may be formed of a plywood.

2 and 3, an overlay layer such as a vibration damping sheet and / or a vinyl sheet may be attached to the surface of the reinforcement plate 24.

In the above, a preferred embodiment of the present invention has been described, but the present invention is not limited thereto, and it is possible to carry out various modifications within the scope of the utility model registration claims and the detailed description of the invention and the accompanying drawings.

1 is a schematic configuration diagram of a double floor system according to an embodiment of the present invention.

FIG. 2 is a top configuration diagram illustrating a first modified embodiment of FIG. 1.

3 is a top plate configuration diagram illustrating a second modified embodiment of FIG. 1;

4 is a schematic structural diagram of a double floor system according to another embodiment of the present invention.

Claims (4)

As the top plate of the double bottom system supported by the support, A plate member including a top plate and a bottom plate positioned below the top plate, and a reinforcing material attached between the top plate and the bottom plate by a high pressure laminate (HPL) process and made of kraft paper impregnated with resin; A reinforcement plate attached to an upper surface of the upper plate and a lower surface of the lower plate by a high pressure lamination process and made of kraft paper impregnated with resin; A damping sheet attached to the reinforcing plate; And A vinyl sheet attached to the vibration damping sheet; Tops comprising a. The method of claim 1, The resin is melamine, phenol, TiO ₂ Top plate, characterized in that one or more selected from among. The method according to claim 1 or 2, The plate member is made of a particle board (PB). A plate member made of a reinforcing member made of kraft paper impregnated with resin and attached by a high pressure rayate (HPL) process between a top plate and a bottom plate positioned below the top plate and between the top plate and the bottom plate; Reinforcement plate attached to the upper surface of the upper plate and the lower surface of the lower plate by a high pressure laminate process and made of kraft paper impregnated with resin, A damping sheet attached to the reinforcing plate, and A vinyl sheet attached to the vibration damping sheet, Top plate comprising a; And Support for supporting the top plate It includes, the support is, A support plate for supporting the top plate; A leveling bolt screwed to a nut installed on the support plate; And Support rubber installed between the leveling bolt and the slab Double floor system comprising a.

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