JPH0972019A - Electromagnetically shielded building with electromagnetic shielding structure and electromagnetically shielded rug - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] An electromagnetic shielding layer on a floor can be easily formed. SOLUTION: In an electromagnetically shielded building in which the surrounding space is covered with an electromagnetically shielded layer made of an electromagnetically shielded material to form an internal space of the building as an electromagnetically shielded space independent from the outside, a rug composed of a base cloth part 16 and a pile part 17 is provided. A conductive material is used for the base cloth portion 16 to electromagnetically shield the floor portion. A conductive material containing carbon fibers or other conductive fibers is used for the non-woven fabric of the base cloth portion 16. Therefore, the electromagnetic shielding layer of the floor portion can be simply configured by using the material of the base cloth portion without changing the shape of the conventional carpet or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic shielding structure using an electromagnetic shielding rug, which surrounds the surroundings with an electromagnetic shielding layer made of an electromagnetic shielding material to form the space inside a building as an electromagnetic shielding space independent from the outside. The present invention relates to a shield building and an electromagnetic shielding rug.

[0002]

2. Description of the Related Art Nowadays, in many office buildings, LANs and other communication lines are used to construct their own communication information processing systems. When such a system becomes large-scale, securing a communication line becomes a problem, and the wiring of cables becomes complicated, and when the room or the device is rearranged, the amount of work for changing the wiring becomes large. Therefore, the adoption of a wireless communication system using radio waves is also attracting attention as one method.

[0003] However, when a radio communication system using radio waves is adopted, regulations of the Radio Law regarding the frequency band to be used pose a problem. Therefore, in order to freely select and set the frequency band to use and adopt a unique wireless communication method without being restricted by the Radio Law, the space inside the building was electromagnetically shielded from the outside. Construction of an electromagnetic shielding building is indispensable. The applicant has already disclosed such an electromagnetic shielding building in, for example, Japanese Patent Publication No. 6-99972, Japanese Patent Publication No. 6-99973, Japanese Patent Publication No. 7-16118, and Japanese Patent Publication No. 6-76706. And Japanese Patent Publication Nos. 6-33971 and 6-33699, and 6-1382.
Japanese Patent Publication No. 6-63407 and Japanese Patent Publication No. 5-79790 disclose a structure for shielding a doorway of a building.
Japanese Patent Publication No. 3-55857 discloses a structure for shielding a window opening. In addition, Japanese Patent Publication No. 3-62320, Japanese Patent Publication No. 3-45772, and Japanese Patent Publication No. 3-6231.
No. 8 and Japanese Patent Publication No. 5-34159 propose a shielding structure for ceilings and layers.

As seen in these proposals, an electromagnetic shielding building uses an electromagnetic shielding material for a frame or a wall structure, and further uses an electromagnetic shielding material for windows, entrances, and other openings along the outer wall of the building. By covering the entire surface with the electromagnetic shielding material, the space in the building can be configured as one electromagnetic shielding space independent of the outside. In addition, the interior of the building is not limited to one electromagnetic shielding space, but each floor is separated by an electromagnetic shielding material on the upper and lower ceilings and floors, or by partitioning walls between rooms on each floor with an electromagnetic shielding material. Alternatively, a plurality of independent electromagnetic shielding spaces can be formed for each room.

[0005]

However, since the above-mentioned conventional electromagnetic shielding technology is mainly applied to a new building, an existing building that does not have electromagnetic shielding performance is used as an electromagnetic shielding building. In the case where each floor or each room is constructed in an independent electromagnetic shielded space (hereinafter referred to as "renewal"), the skeleton itself and the building structure such as columns, walls, slabs cannot be changed. Therefore, in the case of renewal, it is necessary to take new measures to construct an electromagnetically shielded space.

In the case of a wall or a glass window, comparison is made by a method of sticking an electromagnetic shielding material such as a metal mesh or metal foil, a sheet using conductive fibers, conductive paint, etc. on the inner surface or the inner surface or the interior material. This is easy to achieve, but especially on the floor,
Since desks, chairs, shelves, and other fixtures and equipment are placed, it is difficult to form an electromagnetic shielding layer on the surface.

The present invention is to solve the above problems and provides an electromagnetic shielding building and a electromagnetic shielding rug having a shielding structure using an electromagnetic shielding rug in which an electromagnetic shielding layer on a floor can be easily formed. That is the purpose.

[0008]

To this end, the present invention provides an electromagnetic shielding building in which the surrounding space is covered with an electromagnetic shielding layer made of an electromagnetic shielding material to form an internal space of the building as an electromagnetic shielding space independent from the outside. Characterized in that the conductive cloth is used for the base cloth portion of the rug constituted by the pile portion and the pile portion to electromagnetically shield the floor, and the non-woven fabric of the base cloth portion is made of a conductive material. To do.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view for explaining an embodiment of an electromagnetically shielded building having a shielding structure using an electromagnetically shielded rug according to the present invention, 11 and 13 are outer walls, 12 is a floor slab, 14 is a glass window, 15 Is the ceiling, 16 is the base cloth part, 17
Is a pile portion, and 18 to 20 are electromagnetic shielding layers.

In FIG. 1, the outer walls 11 and 13 and the floor slab 12 constitute, for example, an existing skeleton having no electromagnetic shielding performance. In order to make the internal space an electromagnetic shielding space, the outer walls 11 and 13 are formed. The electromagnetic shielding layer 18 is provided inside, the electromagnetic shielding layer 20 is provided below the ceiling 15, and the electromagnetic shielding layer 19 is provided inside the glass window 14. Then, on the floor, an electromagnetic shielding rug (carpet or the like) composed of the base cloth portion 16 and the pile portion 17 and made of a conductive material is laid on the base cloth portion 16. The electromagnetic shield layers 18 to 20 are formed by sticking a metal mesh, a metal foil (film), a non-woven fabric, a sheet using other conductive fibers, or coating a conductive paint. By doing this, the upper and lower ceilings,
It is possible to construct an electromagnetically shielded space that is independent from the outside by covering all of the floor and the six walls of the surrounding walls with an electromagnetic shielding layer.

Next, the electromagnetic shielding rug will be described.
FIG. 2 is a diagram for explaining an embodiment of an electromagnetic shielding rug according to the present invention, in which 21 is a cut pile, and 22 and 32.
Is a base cloth, 23 and 33 are adhesives, 24 is a backing material, 31 is a loop pile, 34 is an intermediate base cloth, 41 is a pile thread, 42
Indicates a Karami sewing thread, 43 indicates a ground warp thread, and 44 indicates a weft thread.

As the electromagnetic shielding rug, an electromagnetic shielding material is used for the base cloth portion of various conventionally known carpets as described above. For example, in the case of a jute pack structure, as shown in FIG. 2 (a), a cut pile is planted in a base cloth 22 made of woven or non-woven fabric, and a backing material made of jute cloth with an adhesive 23 such as latex on the back side thereof. Since 24 is adhered, this base cloth 22 and backing material 24
An electromagnetic shielding material containing carbon fiber or other conductive fiber can be used as the material. Further, in the case of tile (PVC), as shown in FIG.
Since the loop pile 31 is implanted in 2 and the intermediate base cloth 34 is adhered to the back of the loop pile 31 by sandwiching it with the PVC adhesive 33, an electromagnetic shielding material can be used for the base cloth 32 and the intermediate base cloth 34. These are often used in offices, but in the case of spool axmin, which is used as a so-called jutan in a reception room, etc., piles are applied to the thread of the base cloth portion including the kalami sewing thread 42, the ground warp thread 43, and the weft thread 44. Since the threads are woven in, an electromagnetic shielding material containing carbon fibers or other conductive fibers can be used for the threads of the base cloth portion.

The present invention is not limited to the above embodiment, but various modifications can be made. For example, in the above-mentioned embodiment, the case where the building is renewed as an electromagnetically shielded building that does not have electromagnetic shielding performance has been described, but even a new building that uses an electromagnetic shielding material as a shielding structure for the entire body Needless to say, similarly, as for the electromagnetic shielding layer on the floor, the electromagnetic shielding layer may be composed of an electromagnetic shielding rug. Also, as the electromagnetic shielding rug, one that covers the floor surface with one piece like ordinary jutan, or one that is divided and connected to cover
It may be a floor mat which has a fixed rectangular size and is arranged and covered. Furthermore, the case of the jute pack structure, tiles, and spool axmin has been described as a specific rug, but it is needless to say that the same can be applied to rugs of various other pile forms.

[0014]

As is apparent from the above description, according to the present invention, an electromagnetic shielding rug made of a conductive material is laid on the base cloth portion as a rug for covering the floor, so that special construction is required. Therefore, the electromagnetic shielding layer of the floor can be formed by a simple construction in which the carpet is laid on the floor. Moreover, the electromagnetic shielding layer of the floor portion can be simply constructed by using the material of the base cloth portion without changing the form of the conventional carpet or the like. Further, when the electromagnetic shielding layer is provided inside the wall, the electromagnetic shielding layer and the base cloth portion are electrically connected to each other, so that the labor for electrically connecting the electromagnetic shielding layer can be omitted. .

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of an electromagnetic shielding building having a shielding structure using an electromagnetic shielding rug according to the present invention.

FIG. 2 is a diagram for explaining an embodiment of an electromagnetic shielding rug according to the present invention.

[Explanation of symbols]

11 and 13 ... Outer wall, 12 ... Floor slab, 14 ... Glass window,
15 ... Ceiling, 16 ... Base cloth part, 17 ... Pile part, 18-2
0 ... Electromagnetic shielding layer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshio Takahashi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Co., Ltd. (72) Inventor Hitoshi Sakurai 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction company (72) Inventor Koji Nagata 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction company

Claims (4)

[Claims] 1. In an electromagnetically shielded building in which the surrounding space is covered with an electromagnetically shielded layer made of an electromagnetically shielded material to construct an internal space of the building as an electromagnetically shielded space independent from the outside, a base of a rug composed of a base cloth portion and a pile portion. An electromagnetic shielding building having a shielding structure using an electromagnetic shielding rug, which uses a conductive material for the cloth to perform electromagnetic shielding of the floor. 2. The electromagnetic shielding building having a shielding structure using an electromagnetic shielding rug according to claim 1, wherein a conductive material is used for the non-woven fabric of the base cloth portion. 3. An electromagnetic shielding rug, characterized in that a conductive material is used for the base cloth portion of the rug composed of the base cloth portion and the pile portion. 4. The electromagnetic shielding rug according to claim 3, wherein a conductive material is used for the non-woven fabric of the base fabric portion.