JP2949152B2 - Electromagnetic wave shield room construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic wave shielding room constructed in a building, and more particularly to a method for constructing an electromagnetic wave shielding room suitable for applying a metal-plated non-woven fabric to the entire interior surface of the room.

[0002]

2. Description of the Related Art At the present, harmful electromagnetic waves are generated from personal computers and the like with the rapid increase of OA equipment, and a problem that frequently causes malfunction of electric equipment has occurred. Therefore, an electromagnetic wave shield room having a function of preventing intrusion of electromagnetic waves generated outdoors or leakage of electromagnetic waves generated indoors has been developed.

[0003] In order to block electromagnetic waves, electromagnetically shielded rooms are basically provided with a shield material made of a material having good conductivity without gaps on the entire indoor surface including the walls, ceiling and floor of the room. It is constructed by grounding the shield material. Conventionally, a plate material or a foil material made of a metal such as copper having good conductivity has been used as a shield material.

[0004] However, these plate-shaped or foil-shaped metal materials are difficult to cut or cut at the actual work site, and in order to arrange and connect them on the indoor surface, soldering is not required. I didn't have to. In addition, these operations require various skills, and have various problems that it takes a long time to construct.

[0005] Therefore, recently, a nonwoven fabric plated with a metal such as copper has been developed, and its use has been studied and studied as a substitute for a conventionally used plate material or foil material. This nonwoven fabric is lightweight and can be easily processed such as cutting, and the connection between the nonwoven fabrics can be completed by applying an adhesive to one nonwoven fabric and overlaying the other nonwoven fabric on it. Since the handling is simple, there is an advantage that no skill is required for the work and the time required for the construction is short. Research and development of an electromagnetic wave shield room constructed using this nonwoven fabric is currently being conducted.

[0006]

FIG. 3 is an enlarged vertical sectional view showing a wall of a conventional electromagnetic wave shield room. Conventionally, the nonwoven fabric 6 is not directly disposed on the light iron substrate 2, but before the nonwoven fabric 6 is disposed, first, a plaster board 4 is provided, and this is used as a substrate to form a nonwoven fabric 6 on the surface of the plaster board 4. And a plaster board 8 is provided on the nonwoven fabric 6, and the surface is used for finishing such as cloth bonding and painting.

Therefore, at the construction site, the plaster board 4 is disposed on the light iron base 2 and the non-woven fabric 6 as a shielding material is fixed on the base, so that the construction of the plaster board 4 and the construction of the non-woven fabric 6 can be performed. In such a case, it is necessary to carry out the work twice, and it takes much time, which causes a problem that it takes much time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and does not require any trouble in the construction of the shielding material, so that the electromagnetic wave shielding room construction method can save labor or shorten the construction period. Is to provide.

[0009]

According to the present invention, a dry panel in which a metal-plated non-woven fabric is punched into the surface is molded in advance, and then the dry panels are arranged side by side with the non-woven fabric facing the room. Then, a joint tape of the same material as the non-woven fabric is adhered to the non-woven fabric surface so as to overlap between the side edges of the adjacent dry panels, and a paint is applied on the non-woven fabric and the joint tape surface. It is characterized by having done.

[0010]

The operation of the present invention will be described. A dry panel in which a metal-plated nonwoven fabric is punched into the surface is integrally formed in advance. Therefore, when the dry panel is formed, the nonwoven fabric is arranged and driven in, so that the gypsum or the like as the material is impregnated into the inside of the nonwoven fabric, and when this hardens, the nonwoven fabric is securely fixed to the dry panel. Next, the dry panels are arranged side by side with the nonwoven fabric surface facing the room. Therefore, the construction of the dry panel and the construction of the nonwoven fabric as the shielding material can be performed almost simultaneously. As the construction of the remaining shield material, the joint between the edges of the dry panels adjacent to each other is superposed on the nonwoven fabric surface, and a joint tape of the same material as the nonwoven fabric is attached to complete the construction of the shield material. Therefore, compared to the case where the plaster board is first installed on the construction site as before, and then the nonwoven fabric is fixed to the indoor surface from the beginning, the construction area of the shielding material on the site is reduced and it does not take much time Therefore, the time required for constructing the shield room is reduced.

Further, the finishing can be completed by applying a paint on the surface of the non-woven fabric and the joint tape which can be handled like a cold sea, and this paint is made of a non-woven fabric and a joint formed of the same material. The inside of the tape is impregnated, and the nonwoven fabric and the joint tape are integrated as reinforcements to form a strong paint film.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Electromagnetic waves are waves that travel in space as a set of electric and magnetic fields. In order to block the propagation of this electromagnetic wave, a conductor such as metal is placed in the direction of the source of the electromagnetic wave,
There is a way to ground it. This is because the electromagnetic waves propagate and collide with and are absorbed by the grounded conductor. However, since electromagnetic waves are waves and spread concentrically from the source, if there is an obstacle in its propagation direction, it may be reflected and transmitted by this, so it is not necessarily transmitted directly from the source. Not exclusively. In addition, because some things come from other sources,
It is necessary to arrange conductors in all directions. Therefore, in order to construct a shield room in which electromagnetic waves are blocked, it is necessary to dispose a conductive material such as a metal such that there is no gap over the entire indoor surface, and to ground it.

FIGS. 1 and 2 are a perspective view and a longitudinal sectional view, respectively, showing an embodiment of an electromagnetic wave shielding room according to the present invention. A dry panel 12 in which a metal-plated nonwoven fabric 14 is punched into the surface is integrally molded in advance, and then the dry panel 12
The nonwoven fabric 14 is arranged with the nonwoven fabric 14 facing the room 18 side, and is fixed to a ceiling surface and a floor surface by using a runner 30 with screws or the like to form a wall. Next, the non-woven fabric 1 extends between the side edges of the adjacent dry panels 12.
A joint tape 16 of the same material as that of the nonwoven fabric 14 is stuck on the four surfaces, and a paint is applied on the surface of the nonwoven fabric 14 and the joint tape 16. In addition, concrete 20 is exposed on the ceiling and floor of the room 18, a plaster board 22 is provided on the ceiling, the nonwoven fabric 14 is fixed on the plaster board 22, and a gyptone (trade name) ) 24 to complete the finish, while on the floor surface a floor coat (trade name) 2
6, a nonwoven fabric 14 is laid and fixed thereon, and a vinyl tile 28 is laid thereon to complete the finishing. Each of the nonwoven fabrics 14 fixed to the ceiling, floor, and wall is connected to a neighboring nonwoven fabric 14 and joint tape 1.
6 and the like are connected without gaps, and when they are grounded, electromagnetic waves can be cut off.

The non-woven fabric 14 is a cloth made by mechanically, chemically and thermally treating synthetic fibers and joining them by the adhesive force of an adhesive or the fusion force of the non-woven fabric. It is plated with a highly conductive metal and serves as a shielding material. As the nonwoven fabric 14, there is a flextron (trade name), and in this embodiment, an electromagnetic wave shield room is constructed using this. Since the material is porous like gauze and has high stretchability, it can follow even when an earthquake or other vibrations are applied, so that cracks or the like after construction can be prevented.

The dry panel 12 is a gypsum board or the like formed by driving gypsum or mortar into a mold.
The dry-type panel 12 is formed by driving gypsum or the like and disposing the non-woven fabric 14 when it is not yet dried, and at the same time, integrally molding the same. In this embodiment, since it is constructed as a wall, it has a size suitable for the room and is molded into a plate shape, but depending on the shape of the room to be constructed, it may be warped and rounded. You may.

The joint tape 16 is made of the same material as the non-woven fabric 14 and is formed in a strip shape. The joint tape 16 is plated with a highly conductive metal like the non-woven fabric 14 and is made of a porous material such as gauze. is there. It is extremely lightweight, and can be cut and processed more easily than a metal plate used as a conventional shielding material. It is easy to handle without damage. In addition, by utilizing the porous property such as the gauze, the nonwoven fabrics 14 can be adhered to each other using an adhesive such as an emulsion type, a synthetic rubber, or a starch paste. At this time, excess paste is removed through the holes. Since the conductive property can be improved when it is superimposed on the surface of the nonwoven fabric 14, work such as soldering is not required, and the work can be performed as if handling paper.

As is clear from the above, the dry panel 12 in which the metal-plated nonwoven fabric 14 is punched into the surface is integrally molded in advance. Therefore, when the dry panel 12 is molded, before the gypsum or the like as the material is solidified, the nonwoven fabric 14 is arranged and driven into the surface of the dry panel 12 so that the gypsum or the like is formed of a porous material such as gauze. When the inside is impregnated and the gypsum or the like is solidified, the nonwoven fabric 14 is securely fixed to the dry panel 12. Therefore, compared with the case where the nonwoven fabric 14 is fixed to the already molded dry panel 12 by retrofitting, the adhesive force does not decrease, so that there is no subsequent displacement.

Next, the dry panel 12 is attached to the nonwoven fabric 1.
Four sides are arranged side by side toward the room 18 side. The nonwoven fabric 14 is fixed in advance to the surfaces of the dry panels 12 arranged side by side, and there is a gap between the adjacent dry panels 12 where the nonwoven fabric 14 is not connected. Therefore, the joint tape 16 of the same material as the nonwoven fabric 14 is juxtaposed by being attached to the nonwoven fabric 14 surface of the dry panel 12 so as to overlap between the side edges of the adjacent dry panels 12 where the gaps are formed. The connected dry panels 12 can be connected. Then, the nonwoven fabric 14 is grounded and has a function of blocking electromagnetic waves. In addition, by arranging the dry panels 12 in which the nonwoven fabric 14 is integrally formed in advance, the dry panel 12 and the nonwoven fabric 14 serving as the shielding material can be almost simultaneously performed. As the application of the remaining shielding material, a joint tape 16 of the same material as the nonwoven fabric 14 is applied over the surface of the nonwoven fabric 14 between adjacent side edges of the dry panel 12 to complete the application of the shielding material. .
Therefore, as compared with the case where the nonwoven fabric 14 is fixed from the beginning on the plaster board surface provided on the interior surface where no shielding material is installed at the construction site as before, the construction area of the shielding material is reduced. However, the time required for the construction of the shield room is shortened because no labor is required.

Further, the finishing can be completed by applying a paint on the surface using the nonwoven fabric 14 and the joint tape 16 like a cold weather. This paint is impregnated into the nonwoven fabric 14 and the joint tape 16 formed of the same material as the nonwoven fabric 14, and is integrated using the nonwoven fabric 14 and the joint tape 16 as reinforcements to form a strong paint film 32. Thereby, the nonwoven fabric 14
And the joint tape 16 is sufficiently protected. Furthermore, after the construction of the shield room, the bonding capacity at the connection portion between the nonwoven fabric 14 and the joint tape 16 is reduced, and the nonwoven fabric 14
And the paint film 3 integrated with the joint tape 16
In the case where an abnormality such as a crack occurs in 2, the abnormality can be found directly from the room 18, and the nonwoven fabric 14 can be fixed again using the joint tape 16 or the like, or repair work can be performed. it can. Therefore, the deterioration of the shield performance can be easily recognized visually and repaired immediately, so that the shield performance can be reliably maintained.

[0020]

According to the present invention, a dry panel in which a metal-plated nonwoven fabric is punched into the surface is integrally molded in advance.
Therefore, since the nonwoven fabric is securely fixed to the dry panel, the shielding performance does not decrease compared to the case where the nonwoven fabric is fixed to the already solidified dry panel by retrofitting. Can be maintained.

Next, the dry panels are arranged side by side with the nonwoven fabric facing the room. Therefore, the construction of the dry panel and the construction of the nonwoven fabric as the shielding material can be performed almost simultaneously. As the construction of the remaining shield material, the joint between the edges of the dry panels adjacent to each other is superposed on the nonwoven fabric surface, and a joint tape of the same material as the nonwoven fabric is attached to complete the construction of the shield material. Therefore, compared to the case where the nonwoven fabric is fixed to the interior surface from the beginning at the construction site as in the past, the shielding material installation area is reduced, and the time required for the shield material installation is shortened because there is no need for labor. You. As a result, labor saving in the construction of the shield room and shortening of the construction period can be achieved.

Further, a paint is applied on the surface of the nonwoven fabric and the joint tape, and the paint is impregnated into the interior of the nonwoven fabric and the joint tape formed of the same material as the nonwoven fabric and the joint tape. Since it is formed, the nonwoven fabric and the joint tape are sufficiently protected. In addition, after the construction of the shield room, if the adhesive capacity decreases at the joint between the nonwoven fabric and the joint tape and the paint film integrated with the nonwoven fabric has an abnormality such as a crack, this should be found directly from the room. Then, the non-woven fabric can be fixed again using the joint tape or the like, or the repair work can be performed. Therefore, the deterioration of the shield performance can be easily recognized visually and repaired immediately, so that the shield performance can be reliably maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an electromagnetic wave shield room according to the present invention.

FIG. 2 is a longitudinal sectional view showing one embodiment of the electromagnetic wave shield room according to the present invention.

FIG. 3 is an enlarged vertical sectional view showing a wall portion of a conventional electromagnetic wave shield room.

[Explanation of symbols]

 12 Dry panel 14 Non-woven fabric 16 Joint tape

──────────────────────────────────────────────────続 き Continued on the front page (72) Katsuo Yoshida 4-640 Shimoseito, Kiyose-shi, Tokyo Inside Obayashi Corporation Technical Research Institute Co., Ltd. (72) Akio Kimura 1-4-14 Nihombashi Bakurocho, Chuo-ku, Tokyo Marubeni Fiber Materials Co., Ltd. Tokyo Branch (72) Inventor Shozo Suzuki 1-4-14 Nihombashi Bakurocho, Chuo-ku, Tokyo Marubeni Textile Co., Ltd. Tokyo Branch (56) References JP-A-4-130700 (JP, A) JP Hei 4-178261 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H05K 9/00

Claims (1)

(57) [Claims] 1. A dry panel in which a metal-plated nonwoven fabric has been punched into the surface is preliminarily molded, and then the dry panels are juxtaposed with their nonwoven fabric surfaces facing the room.
It is characterized in that a joint tape of the same material as the non-woven fabric is adhered to the non-woven fabric surface so as to overlap between the edges of adjacent dry panels, and a paint is applied on the non-woven fabric and the joint tape surface. Electromagnetic shielding room construction method.