JPH05148986A - Floor member - Google Patents

Abstract

PURPOSE:To attain the light weight and flameproofing of a floor member while improving strength and prevent the generation of patting sound at the time of walking thereon by filling a synthetic resion foam body inside a metal panel covered with metal on six faces thereof. CONSTITUTION:A synthetic resin foam body 2 such as an urethane foam body or a styrene foam body is filled inside a metal panel 1 covered with metal such as steel on six faces thereof. In the case of filling the urethane foam body, the original liquid of the foam body 2 is poured in from a hole provided in the side face or the like of the already formed metal panel 1 and foamed inside the panel 1. In the case of filling the styrene foam body, the foam body 2 is previously molded in a mold of the same shape as the inside of the panel 1, and the foam body 2 is sandwiched in the metal panel 1 divided into an upper panel and a lower panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor material used for an office floor called a free access floor panel.

[0002]

2. Description of the Related Art Conventionally, a steel panel having six surfaces covered with steel is known as a floor material used for an office floor called a free access floor panel. However, since the flooring consisting of steel panels covered with steel on these 6 sides is not filled inside,
There is a problem that it is not preferable as a floor material because it makes a clicking sound when walking.

Therefore, it is conceivable to increase the thickness of the steel plate in order to prevent the sound generated during walking.
This is not a preferable method because it increases weight and cost. For this reason, in the past, a heavy cured product has been filled in a steel panel whose six sides are covered with steel as shown in Japanese Utility Model Laid-Open No. 63-195043. The heavy hardened material is, for example, lightweight concrete (foamed concrete), and in addition, wood chips and the like are used. And, by filling lightweight concrete (foam concrete) or wood debris into a steel panel with six sides covered with steel, the strength is increased so that there is no squeaking noise when walking. ing.

[0004]

However, a flooring material in which lightweight concrete (foamed concrete) is filled in a steel panel whose six sides are covered with steel has a weight of 1. It becomes 5 to 2 times and becomes a very heavy floor material. When the weight becomes heavy like this, it is necessary to consider the weight of the floor material of the building steel frame so that it is thick enough to be used as a free-access floor panel for a skyscraper. Was unsuitable. Further, since the lightweight concrete is filled in the steel, even if the floor material is recycled (recycled) and reused, the concrete becomes an obstacle and makes recycling difficult.

[0006] Further, the one in which fine wood pieces are filled in a steel panel whose six sides are covered with steel cannot be filled in a panel having a complicated shape such as an uneven shape because it does not foam. Is. Moreover, since it is necessary to increase the packing density of wood in order to improve the strength, the weight is about 1.3 to 1.5 times the weight of the empty panel, which is considerably heavier than the empty panel, and is filled. It is difficult to make wood chips flame-retardant.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to prevent the sound of "popping" when walking and to reduce the weight. In addition, it is to provide a flooring material which can be improved in strength, can easily be made flame-retardant, and can be recycled from a metal panel.

[0007]

The flooring material of the present invention comprises a synthetic resin foam 2 inside a metal panel 1 having six sides covered with metal.
It is characterized in that the above-mentioned conventional problems are solved and the object of the present invention is achieved by adopting such a constitution.

[0008]

In the present invention, the synthetic resin foam 2 is filled in the inside of the metal panel 1 whose six sides are covered with metal, so that it is possible to prevent the clicking sound from being generated when walking. .. By filling the synthetic resin foam, the weight can be reduced, and the flame-retardant compounding can be done easily to make the flame-retardant. Also, when recycling, heat is applied to soften the synthetic resin foam. The metal part can be regenerated by burning or burning it.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. A synthetic resin foam 2 is filled inside a metal panel 1 whose six sides are covered with a metal such as steel. The synthetic resin foam 2 is, for example, a urethane foam or a styrene foam. In the case of the urethane foam, the undiluted solution of the urethane foam is poured into the metal panel 1 through the holes formed in the side surfaces of the metal panel 1 whose six faces are already covered with metal such as steel to foam the metal foam. It is a thing. In this way, by pouring the undiluted solution into the metal panel 1 and then foaming it, even if the metal panel 1 has irregularities 3 on the lower surface as shown in the figure, for example, the synthetic resin foam 2 can be filled up in every corner. Is what you can do. Further, the styrene foam 2a is the metal panel 1
Since it is difficult to foam after pouring it into the
The styrofoam foam 2a is molded with a mold having the same shape as the inside of the metal panel 1, and the metal panel 1 is attached to the upper panel 1a.
And the lower panel 1b is divided and joined by pressing, spot welding, caulking (rivets) or the like, the styrene foam 2a is sandwiched and the upper panel 1a and the lower panel 1b are joined to form six sides by metal. The inside of the covered metal panel 1 is filled with a synthetic resin foam 2 made of styrene foam 2a. FIG. 3 shows a process diagram for filling the metal panel 1 with the styrene foam 2a. In this case, if the styrene foam 2a formed by a mold is made a little larger and the upper panel 1a and the lower panel 1b are joined and pressed, the styrene foam 2a can be filled even in the details of the unevenness of the metal panel 1. .

By the way, the synthetic resin foam 2 can control the strength by the expansion ratio. For example, when the expansion ratio is the same as that of lightweight concrete or wood chips, an empty metal panel is used. The weight is 1.1 to 1.2 times that of No. 1 and can be reduced in weight. By the way, when the synthetic resin foam 2 is filled when the empty metal panel 1 has a weight of 14 kg, the weight is 15.4 to 16.8 kg.

Further, since the outer surface (six surfaces) of the synthetic resin foam 2 is covered with a metal such as steel, the synthetic resin foam 2 does not necessarily have to be flame-retarded.
It is more preferable to make it flame-retardant. Further, when injecting a stock solution such as urethane into the metal panel 1, the metal panel 1 whose six faces are covered with a metal such as steel as shown in FIG.
The metal panel 1 is provided with an evacuation hole 6 for evacuation. Then, when the foaming is completed, the injection hole 5 and the exhaust hole 6 are sealed with a lid made of metal such as steel. In this case, it is preferable to screw the lid and screw it to the metal panel 1. When the metal lid is used in this way, the lid does not melt in the event of a fire, and the inside of the metal panel 1 remains sealed. Therefore, the synthetic resin foam 2 inside is completely shielded from the air (oxygen) in the outside world, and the noncombustibility of the metal panel 1 is secured. Further, by screwing the lid and screwing the lid to the metal panel 1, the lid will not be blown even if gas is generated from the synthetic foam resin in the metal panel 1 at high temperature.

As the urethane raw solution, two solutions, R solution and I solution, are mixed and injected to foam. The R solution is a polyol, a foaming agent, a catalyst such as an amine catalyst or an organic compound, and a silicone. It is a mixture of a foam stabilizer and a flame retardant, and the liquid I is an isocyanate. The flooring material constructed by filling the synthetic resin foam 2 inside the metal panel 1 having the above-mentioned structure 6 covered with metal is used for an office floor called a free access floor panel. Is.

A metal panel 1 having six surfaces covered with metal
The inside is filled with the synthetic resin foam 2, and a partition, a ceiling material, or the like may be formed.

[0014]

As described above, according to the present invention, since the synthetic resin foam is filled in the inside of the metal panel whose six sides are covered with the metal, the sound of "popping" is generated when walking. It can be prevented from being generated, and because it is a synthetic resin foam, it is possible to reduce the weight.Furthermore, flame retardant compounding is possible to easily make flame retardant, and when recycling, heat is not required. By softening the synthetic resin foam or burning it, the metal part can be regenerated.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of the present invention.

FIG. 2 (a) is a plan view of the above, and FIG. 2 (b) is a front view.

[Fig. 3] Fig. 3 is a process drawing in the case of filling the styrene foam same as above.

FIG. 4 is a perspective view showing a state in which a metal panel is erected when injecting the undiluted solution of the urethane foam described above.

[Explanation of symbols]

 1 Metal panel 2 Synthetic resin foam

Claims (1)

[Claims] 1. A flooring material characterized by comprising a synthetic resin foam filled inside a metal panel having six sides covered with metal.