JP2006037457A

JP2006037457A - Floor structure

Info

Publication number: JP2006037457A
Application number: JP2004217327A
Authority: JP
Inventors: Shigetaka Hirosato; 成隆広里; Kenji Kageyama; 健二影山; Tadahiro Kakizawa; 忠弘柿沢
Original assignee: Takenaka Komuten Co Ltd
Current assignee: Takenaka Komuten Co Ltd
Priority date: 2004-07-26
Filing date: 2004-07-26
Publication date: 2006-02-09

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor structure which can effectively minimize leakage of electromagnetic waves from a gap between first and second opposed members without using a special electromagnetic shielding member. <P>SOLUTION: According to the floor structure 30, a plurality of floor members 52 are borne by a plurality of bearing legs 40, and a space 54 is formed on a lower side of an indoor space 36. Herein peripheral wall portions 58 of the respective floor members 52 adjacent to each other are opposed to each other except for respective lower ends in a manner being kept out of conduction, and therefore the peripheral wall portions 58 of the floor members opposed to each other have enlarged opposed areas, respectively. As a result an impedance of a capacitor defined by the peripheral surfaces 58 of the respective floor members 52 opposed to each other can be reduced, and therefore leakage of electromagnetic waves from the gap between the floor members 52 adjacent to each other can be effectively minimized. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、室内の床構造に関する。 The present invention relates to an indoor floor structure.

床構造としては、床スラブ上に固定された支持部材上に金属製のフロアパネルが支持されたものがある（例えば、特許文献１参照）。 As a floor structure, there is one in which a metal floor panel is supported on a support member fixed on a floor slab (for example, see Patent Document 1).

この床構造では、フロアパネル間、及び、間仕切り壁の電磁遮蔽材とフロアパネルとの間を、金属箔によって導通させることで、フロアパネル間の隙間、及び、間仕切り壁の電磁遮蔽材とフロアパネルとの間の隙間において、電磁波をシールドしている。 In this floor structure, the gap between the floor panels and the electromagnetic shielding material of the partition wall and the floor panel are established by conducting metal foil between the floor panels and between the electromagnetic shielding material of the partition wall and the floor panel. The electromagnetic wave is shielded in the gap between the two.

しかしながら、この床構造では、上記各隙間において電磁波をシールドするために、特別な電磁波シールド部材（金属箔）を使用する必要があるという問題がある。 However, in this floor structure, there is a problem that it is necessary to use a special electromagnetic wave shielding member (metal foil) in order to shield electromagnetic waves in the gaps.

しかも、フロアパネルは、その目的から、フロアパネル下方と躯体側の床スラブとの間の空間にコンピュータ等のための電源用配線や通信用配線等を配設するための構成部材である。このため、コンピュータ等の移設や新設に伴いこれらの配線の交換や増設をする度に、広い範囲のフロアパネルを取り外してフロアパネル下方の空間を開放するために、金属箔を取り外す必要があり、フロアパネルの取り外し作業が煩雑であるという問題もある。 Moreover, the floor panel is a component for disposing a power supply wiring, a communication wiring, and the like for a computer or the like in a space between the floor panel lower side and the frame-side floor slab for that purpose. For this reason, it is necessary to remove the metal foil to remove the wide floor panel and open the space below the floor panel every time these wirings are replaced or expanded along with the transfer or new installation of computers, etc. There is also a problem that the work of removing the floor panel is complicated.

また、床構造としては、上記各隙間において電磁波をシールドする必要をなくすために、床スラブ上に亜鉛鉄板等の金属板を敷き込むことで、電磁波をシールドするものもある。 Further, as a floor structure, there is a floor structure that shields electromagnetic waves by laying a metal plate such as a galvanized iron plate on a floor slab in order to eliminate the need to shield electromagnetic waves in each gap.

しかしながら、この床構造では、フロアパネルを支持する支持部材を床スラブ上に固定する際に、耐震性確保の点から、支持部材を床スラブ上に金属板を貫通する状態でアンカー固定又はコンクリートビス固定する必要がある。このため、金属板に開けられた貫通孔によって電磁波のシールド性能が低下するという問題が生じる可能性がある。
特開平９−８３１７９号公報 However, in this floor structure, when the support member that supports the floor panel is fixed on the floor slab, the support member is fixed to an anchor or a concrete screw while penetrating the metal plate on the floor slab from the viewpoint of securing earthquake resistance. Need to be fixed. For this reason, the problem that the shielding performance of electromagnetic waves falls by the through-hole opened in the metal plate may arise.
JP-A-9-83179

本発明は、上記事実を考慮し、特別な電磁波シールド部材を使用しなくても第１対向部材と第２対向部材との間からの電磁波の漏洩を効果的に低減できる床構造を得ることが目的である。 In view of the above fact, the present invention can provide a floor structure capable of effectively reducing leakage of electromagnetic waves from between the first opposing member and the second opposing member without using a special electromagnetic shielding member. Is the purpose.

請求項１に記載の床構造は、導電性を有し、下方に空間が形成される室内の床部分を構成する第１床部材の端部に設けられた第１対向部材と、導電性を有し、前記第１導電部材に導通されない状態で前記第１導電部材に対向する第２対向部材と、を備えている。 The floor structure according to claim 1 is electrically conductive and electrically conductive with a first opposing member provided at an end of a first floor member that constitutes a floor portion in a room where a space is formed below. And a second facing member that faces the first conductive member in a state where the first conductive member is not conducted to the first conductive member.

請求項２に記載の床構造は、請求項１に記載の床構造において、前記第２対向部材は、前記室内の床部分を構成する第２床部材の端部に設けられた、ことを特徴としている。 The floor structure according to claim 2 is the floor structure according to claim 1, wherein the second facing member is provided at an end portion of a second floor member constituting the floor portion in the room. It is said.

請求項３に記載の床構造は、導電性を有し、室内の床部分を構成する床部材に設けられた第１対向部材と、導電性を有し、前記床部材を支持する支持部材に設けられると共に、前記第１対向部材に導通されない状態で前記第１対向部材に対向する第２対向部材と、を備えている。 The floor structure according to claim 3 is electrically conductive and includes a first facing member provided on a floor member constituting a floor portion in the room, and a support member having conductivity and supporting the floor member. And a second facing member that faces the first facing member in a state that is not conducted to the first facing member.

請求項４に記載の床構造は、請求項１乃至請求項３の何れか１項に記載の床構造において、前記第１対向部材と前記第２対向部材との導通を阻止する阻止部材を備えた、ことを特徴としている。 A floor structure according to a fourth aspect of the invention is the floor structure according to any one of the first to third aspects, further comprising a blocking member that prevents conduction between the first opposing member and the second opposing member. It is characterized by that.

請求項５に記載の床構造は、請求項１乃至請求項４の何れか１項に記載の床構造において、前記第１対向部材と前記第２対向部材とを互いに略平行に配置した、ことを特徴としている。 The floor structure according to claim 5 is the floor structure according to any one of claims 1 to 4, wherein the first opposing member and the second opposing member are arranged substantially parallel to each other. It is characterized by.

請求項６に記載の床構造は、請求項１乃至請求項５の何れか１項に記載の床構造において、前記第１対向部材と前記第２対向部材との間に誘電体を設けた、ことを特徴としている。 The floor structure according to claim 6 is the floor structure according to any one of claims 1 to 5, wherein a dielectric is provided between the first opposing member and the second opposing member. It is characterized by that.

請求項７に記載の床構造は、請求項１乃至請求項６の何れか１項に記載の床構造において、前記第１対向部材の前記第２対向部材との対向面及び前記第２対向部材の前記第１対向部材との対向面の幅を１５ｍｍ以上にすると共に、前記第１対向部材と前記第２対向部材との間隔を３ｍｍ以下にした、ことを特徴としている。 The floor structure according to claim 7 is the floor structure according to any one of claims 1 to 6, wherein the opposing surface of the first opposing member to the second opposing member and the second opposing member. The width of the opposing surface to the first opposing member is 15 mm or more, and the distance between the first opposing member and the second opposing member is 3 mm or less.

請求項１に記載の床構造では、室内の下方に空間が形成されており、室内の床部分を構成する第１床部材の端部に第１対向部材が設けられている。 In the floor structure according to the first aspect, a space is formed in the lower part of the room, and the first facing member is provided at the end of the first floor member constituting the floor part of the room.

ここで、導電性を有する第１対向部材と第２対向部材とが導通されない状態で対向することで、第１対向部材と第２対向部材との対向面積（対向方向（対面方向）に垂直な方向の面積（対面面積））を大きくしている。このため、第１対向部材と第２対向部材とにより構成されるコンデンサのインピーダンス（抵抗）を小さくすることができ、第１床部材（第１対向部材）と第２対向部材との間からの電磁波の漏洩を効果的に低減することができる。これにより、特別な電磁波シールド部材を使用する必要をなくすことができる。 Here, by facing the conductive first opposing member and the second opposing member in a non-conductive state, the opposing area between the first opposing member and the second opposing member (perpendicular direction (facing direction)) is perpendicular. The area in the direction (face-to-face area) is increased. For this reason, the impedance (resistance) of the capacitor formed by the first opposing member and the second opposing member can be reduced, and from between the first floor member (first opposing member) and the second opposing member. Electromagnetic leakage can be effectively reduced. This eliminates the need to use a special electromagnetic shielding member.

請求項２に記載の床構造では、室内の床部分を構成する第２床部材の端部に第２対向部材が設けられている。このため、第１床部材（第１対向部材）と第２床部材（第２対向部材）との間からの電磁波の漏洩を効果的に低減することができる。 In the floor structure according to the second aspect, the second facing member is provided at the end of the second floor member constituting the floor portion in the room. For this reason, leakage of electromagnetic waves from between the first floor member (first opposing member) and the second floor member (second opposing member) can be effectively reduced.

請求項３に記載の床構造では、室内の床部分を構成する床部材を支持部材が支持しており、床部材に第１対向部材が設けられると共に、支持部材に第２対向部材が設けられている。 In the floor structure according to claim 3, the support member supports the floor member constituting the indoor floor portion, the first opposing member is provided on the floor member, and the second opposing member is provided on the support member. ing.

ここで、導電性を有する第１対向部材と第２対向部材とが導通されない状態で対向することで、第１対向部材と第２対向部材との対向面積（対向方向（対面方向）に垂直な方向の面積（対面面積））を大きくしている。このため、第１対向部材と第２対向部材とにより構成されるコンデンサのインピーダンス（抵抗）を小さくすることができ、床部材（第１対向部材）と支持部材（第２対向部材）との間からの電磁波の漏洩を効果的に低減することができる。これにより、特別な電磁波シールド部材を使用する必要をなくすことができる。 Here, by facing the conductive first opposing member and the second opposing member in a non-conductive state, the opposing area between the first opposing member and the second opposing member (perpendicular direction (facing direction)) is perpendicular. The area in the direction (face-to-face area) is increased. For this reason, the impedance (resistance) of the capacitor formed by the first opposing member and the second opposing member can be reduced, and between the floor member (first opposing member) and the support member (second opposing member). The leakage of electromagnetic waves from can be effectively reduced. This eliminates the need to use a special electromagnetic shielding member.

請求項４に記載の床構造では、阻止部材が第１対向部材と第２対向部材との導通を阻止するため、第１対向部材と第２対向部材との導通を確実に防止することができる。 In the floor structure according to claim 4, since the blocking member blocks conduction between the first facing member and the second facing member, conduction between the first facing member and the second facing member can be reliably prevented. .

請求項５に記載の床構造では、第１対向部材と第２対向部材とを互いに略平行に配置したため、第１対向部材と第２対向部材との対向面積が確実に大きくなり、第１対向部材と第２対向部材とにより構成されるコンデンサのインピーダンスを確実に小さくすることができる。これにより、第１対向部材と第２対向部材との間からの電磁波の漏洩を確実かつ効果的に低減することができる。 In the floor structure according to claim 5, since the first facing member and the second facing member are arranged substantially parallel to each other, the facing area between the first facing member and the second facing member is reliably increased, and the first facing member The impedance of the capacitor constituted by the member and the second opposing member can be reliably reduced. Thereby, the leakage of the electromagnetic wave from between a 1st opposing member and a 2nd opposing member can be reduced reliably and effectively.

請求項６に記載の床構造では、第１対向部材と第２対向部材との間に誘電体を設けたため、第１対向部材と第２対向部材とにより構成されるコンデンサのインピーダンスを一層小さくすることができ、第１対向部材と第２対向部材との間からの電磁波の漏洩を一層効果的に低減することができる。 In the floor structure according to claim 6, since the dielectric is provided between the first opposing member and the second opposing member, the impedance of the capacitor constituted by the first opposing member and the second opposing member is further reduced. And leakage of electromagnetic waves from between the first opposing member and the second opposing member can be more effectively reduced.

請求項７に記載の床構造では、第１対向部材の第２対向部材との対向面及び第２対向部材の第１対向部材との対向面の幅を１５ｍｍ以上にすると共に、第１対向部材と第２対向部材との間隔を３ｍｍ以下にしたため、第１対向部材と第２対向部材とにより構成されるコンデンサのインピーダンスを確実に小さくすることができ、第１対向部材と第２対向部材との間からの電磁波の漏洩を確実かつ効果的に低減することができる。 In the floor structure according to claim 7, the width of the facing surface of the first facing member to the second facing member and the facing surface of the second facing member to the first facing member is set to 15 mm or more, and the first facing member Since the distance between the first opposing member and the second opposing member is 3 mm or less, the impedance of the capacitor constituted by the first opposing member and the second opposing member can be reliably reduced, and the first opposing member and the second opposing member It is possible to reliably and effectively reduce the leakage of electromagnetic waves from between.

（電磁波シールド原理）
図１には、本発明の電磁波シールド原理が適用された電磁波シールド構造１０が断面図にて示されている。 (Electromagnetic wave shielding principle)
FIG. 1 is a sectional view showing an electromagnetic wave shielding structure 10 to which the electromagnetic wave shielding principle of the present invention is applied.

電磁波シールド構造１０は、一対の導電性材料１４を備えており、各導電性材料１４は、導電性を有すると共に、互いに導通されていない。各導電性材料１４は断面Ｌ字形板状にされており、各導電性材料１４の上部（屈曲部分を含まない）は導電部１６にされる一方、各導電性材料１４の側部（屈曲部分を含む）は対向部１８にされている。各導電部１６は並列配置される一方、各対向部１８は互いに平行に配置された状態で対向している。また、一対の対向部１８（導電性材料１４）間には、隙間２０（空間）が形成された構成である。 The electromagnetic wave shield structure 10 includes a pair of conductive materials 14, and each conductive material 14 has conductivity and is not electrically connected to each other. Each conductive material 14 has an L-shaped cross section, and an upper portion (not including a bent portion) of each conductive material 14 is formed as a conductive portion 16, while a side portion (bent portion) of each conductive material 14. Is included in the opposing portion 18. The conductive portions 16 are arranged in parallel, while the opposing portions 18 face each other in a state of being arranged in parallel to each other. In addition, a gap 20 (space) is formed between the pair of opposed portions 18 (conductive material 14).

以上の構成の電磁波シールド構造１０では、一対の対向部１８間の間隔が電磁波の波長よりも小さい場合には、この電磁波シールド構造１０に電磁波が到来すると、一方の導電性材料１４に表面電流（図１の往復矢印Ａ）が流れることで、隙間２０に変位電流（図１の往復矢印Ｂ）が流れて、他方の導電性材料１４に表面電流（図１の往復矢印Ａ）が流れる。ところで、電磁波は交流であるため、変位電流の大きさと方向とは時間的に変化する。このため、この変位電流によって、隙間２０には、磁界が発生して電界が発生することで、電磁波が発生する。この電磁波は、電磁波到来側へ伝搬すれば隙間２０から電磁波が漏洩しないが、反電磁波到来側へ伝搬すると隙間２０から電磁波が漏洩することになる。 In the electromagnetic wave shield structure 10 having the above configuration, when the distance between the pair of opposed portions 18 is smaller than the wavelength of the electromagnetic wave, when an electromagnetic wave arrives at the electromagnetic wave shield structure 10, a surface current ( 1 flows, a displacement current (reciprocating arrow B in FIG. 1) flows through the gap 20, and a surface current (reciprocating arrow A in FIG. 1) flows through the other conductive material. By the way, since electromagnetic waves are alternating current, the magnitude and direction of the displacement current change with time. For this reason, an electromagnetic field is generated by generating a magnetic field and generating an electric field in the gap 20 by the displacement current. If this electromagnetic wave propagates to the electromagnetic wave arrival side, the electromagnetic wave does not leak from the gap 20, but if propagated to the anti-electromagnetic wave arrival side, the electromagnetic wave leaks from the gap 20.

一般に、隙間２０から漏洩する電磁波の強度は、一対の対向部１８間の電位差が大きくなる程大きくなるため、隙間２０から漏洩する電磁波の強度を小さくするためには、一対の対向部１８により構成されるコンデンサのインピーダンスを小さくすればよい。 In general, the strength of the electromagnetic wave leaking from the gap 20 increases as the potential difference between the pair of facing portions 18 increases. Therefore, in order to reduce the strength of the electromagnetic wave leaking from the gap 20, the configuration is constituted by the pair of facing portions 18. What is necessary is just to make the impedance of the capacitor to be reduced.

コンデンサのインピーダンスＲは、隙間２０に存在する誘電体の誘電率をεとし、一対の対向部１８間の間隔をｄとし、一対の対向部１８の対向面積をＳとし、コンデンサの静電容量をＣ＝ε・（Ｓ／ｄ）とし、到来電磁波の周波数をｆとし、到来電磁波の角周波数をω＝２πｆとすると、
Ｒ＝１／（Ｃ・ω）＝１／｛ε・（Ｓ／ｄ）・２πｆ｝・・・式（１）
となる。 The impedance R of the capacitor is such that the dielectric constant of the dielectric existing in the gap 20 is ε, the distance between the pair of facing portions 18 is d, the facing area of the pair of facing portions 18 is S, and the capacitance of the capacitor is When C = ε · (S / d), the frequency of the incoming electromagnetic wave is f, and the angular frequency of the incoming electromagnetic wave is ω = 2πf,
R = 1 / (C · ω) = 1 / {ε · (S / d) · 2πf} (1)
It becomes.

このため、コンデンサのインピーダンスＲは、一対の対向部１８の対向面積Ｓを大きくする程、一対の対向部１８間の距離ｄを小さくする程、隙間２０に存在する誘電体の誘電率εを大きくする程、小さくできる。なお、空気は誘電率εが最小の物質であり、空気以外の誘電体を隙間２０に挿入することで、コンデンサのインピーダンスＲを小さくすることができる。 For this reason, the impedance R of the capacitor increases the dielectric constant ε of the dielectric existing in the gap 20 as the facing area S of the pair of facing portions 18 is increased and the distance d between the pair of facing portions 18 is decreased. The smaller it is, the smaller it can be. Note that air is a substance having a minimum dielectric constant ε, and the impedance R of the capacitor can be reduced by inserting a dielectric other than air into the gap 20.

電磁波シールド構造１０では、各対向部１８が各導電部１６に対して屈曲されて対向されているため、一対の対向部１８の対向面積Ｓが大きくされている。このため、式（１）から、一対の対向部１８により構成されるコンデンサのインピーダンスＲが小さくなることで、隙間２０から漏洩する電磁波の強度が小さくなり、隙間２０からの電磁波の漏洩を効果的に低減することができる。 In the electromagnetic wave shield structure 10, since each facing portion 18 is bent and opposed to each conductive portion 16, the facing area S of the pair of facing portions 18 is increased. For this reason, from the formula (1), the impedance R of the capacitor constituted by the pair of facing portions 18 is reduced, so that the strength of the electromagnetic wave leaking from the gap 20 is reduced, and the leakage of the electromagnetic wave from the gap 20 is effective. Can be reduced.

さらに、一対の対向部１８の対向面を互いに平行に配置したため、一対の対向部１８の対向面積が確実に大きくなり、一対の対向部１８により構成されるコンデンサのインピーダンスＲを確実に小さくすることができる。これにより、隙間２０からの電磁波の漏洩を確実かつ効果的に低減することができる。 Furthermore, since the opposing surfaces of the pair of opposing portions 18 are arranged in parallel with each other, the opposing area of the pair of opposing portions 18 is reliably increased, and the impedance R of the capacitor formed by the pair of opposing portions 18 is reliably reduced. Can do. Thereby, leakage of electromagnetic waves from the gap 20 can be reliably and effectively reduced.

（実験例）
図２及び図３には、図１の電磁波シールド構造１０において、各導電性材料１４がアルミニウム製プレートにされた場合に、一対の対向部１８の対向面の幅Ｗ（図面では「厚さ」と表示）を２０ｍｍ、３０ｍｍ、４０ｍｍ、５０ｍｍにした毎に分けて、一対の対向部１８間の間隔（図面では「ギャップ」と表示）と、隙間２０の電磁波シールド性能（電磁波が隙間２０を透過することによる損失電界強度であり、図面では「挿入損失」と表示する）と、の関係の実験結果が示されている。この場合、電磁波は、各導電部１６表面の垂直方向に沿って到来（入射）されており、隙間２０の電磁波シールド性能は、到来する電磁波の電界強度と隙間２０を透過した電磁波の電界強度とから算出されている。 (Experimental example)
2 and 3, when each conductive material 14 is made of an aluminum plate in the electromagnetic wave shield structure 10 of FIG. 1, the width W of the opposed surfaces of the pair of opposed portions 18 (“thickness” in the drawing). Is divided into 20 mm, 30 mm, 40 mm, and 50 mm, and the distance between the pair of facing portions 18 (indicated as “gap” in the drawing) and the electromagnetic shielding performance of the gap 20 (the electromagnetic wave passes through the gap 20). The experimental result of the relationship between the loss electric field strength and the “insertion loss” in the drawing is shown. In this case, the electromagnetic wave has arrived (incident) along the vertical direction of the surface of each conductive portion 16, and the electromagnetic wave shielding performance of the gap 20 has the electric field strength of the incoming electromagnetic wave and the electric field intensity of the electromagnetic wave transmitted through the gap 20. It is calculated from

また、図２（Ａ）には、到来する電磁波の周波数が２．４５ＧＨｚにされると共に誘電率εが１．０Ｆ／ｍの誘電体（空気）が隙間２０に挿入された場合が示されており、図２（Ｂ）には、到来する電磁波の周波数が５．２ＧＨｚにされると共に誘電率εが１．０Ｆ／ｍの誘電体（空気）が隙間２０に挿入された場合が示されている。さらに、図３（Ａ）には、到来する電磁波の周波数が２．４５ＧＨｚにされると共に誘電率εが４．０Ｆ／ｍの誘電体が隙間２０に挿入された場合が示されており、図３（Ｂ）には、到来する電磁波の周波数が５．２ＧＨｚにされると共に誘電率εが４．０Ｆ／ｍの誘電体が隙間２０に挿入された場合が示されている。 FIG. 2A shows a case where the frequency of the incoming electromagnetic wave is set to 2.45 GHz and a dielectric (air) having a dielectric constant ε of 1.0 F / m is inserted into the gap 20. FIG. 2B shows a case where the frequency of the incoming electromagnetic wave is set to 5.2 GHz and a dielectric (air) having a dielectric constant ε of 1.0 F / m is inserted into the gap 20. Yes. Further, FIG. 3A shows a case where the frequency of the incoming electromagnetic wave is set to 2.45 GHz and a dielectric having a dielectric constant ε of 4.0 F / m is inserted into the gap 20. 3 (B) shows a case where the frequency of the incoming electromagnetic wave is set to 5.2 GHz and a dielectric having a dielectric constant ε of 4.0 F / m is inserted into the gap 20.

図２及び図３から、一対の対向部１８間の間隔が３ｍｍ以下であると、隙間２０の電磁波シールド性能が向上する傾向がある。さらに、一対の対向部１８の対向面の幅Ｗ、一対の対向部１８間の間隔及び到来する電磁波の周波数が同一である場合には、隙間２０に空気以外の誘電体を挿入すると、隙間２０の電磁波シールド性能が向上する傾向がある。 2 and 3, when the distance between the pair of facing portions 18 is 3 mm or less, the electromagnetic wave shielding performance of the gap 20 tends to be improved. Further, when the width W of the facing surfaces of the pair of facing portions 18, the distance between the pair of facing portions 18, and the frequency of the incoming electromagnetic wave are the same, when a dielectric other than air is inserted into the gap 20, the gap 20 There is a tendency for the electromagnetic shielding performance of the to improve.

（第１実施例）
図４には、本発明の第１実施例に係る床構造３０が断面図にて示されている。 (First embodiment)
FIG. 4 is a sectional view showing the floor structure 30 according to the first embodiment of the present invention.

本実施例に係る床構造３０は、オフィスビル等の建築物の所謂ＯＡフロアに適用されている。 The floor structure 30 according to the present embodiment is applied to a so-called OA floor of a building such as an office building.

床構造３０は、階構成部材としてのコンクリート製の床スラブ３２を複数備えており、床スラブ３２は、建築物の各階の上面及び下面を構成している。床スラブ３２間には複数の側壁３４が設けられており、側壁３４は各階における室内３６の側面を構成している。側壁３４には第２対向部材としての電磁波シールド層３８が設けられており、電磁波シールド層３８は、側壁３４の下部以外の部位において側壁３４内に配置されると共に、側壁３４の下端近傍の部位において室内３６側へ露出している。電磁波シールド層３８はアルミニウム製シート状等にされて導電性を有しており、電磁波シールド層３８は電磁波をシールド（遮蔽）する。 The floor structure 30 includes a plurality of concrete floor slabs 32 as floor constituent members, and the floor slabs 32 constitute upper and lower surfaces of each floor of the building. A plurality of side walls 34 are provided between the floor slabs 32, and the side walls 34 constitute side surfaces of the room 36 on each floor. An electromagnetic wave shielding layer 38 as a second opposing member is provided on the side wall 34, and the electromagnetic wave shielding layer 38 is disposed in the side wall 34 at a part other than the lower part of the side wall 34, and a part near the lower end of the side wall 34. It is exposed to the room 36 side. The electromagnetic wave shielding layer 38 is made of an aluminum sheet or the like and has conductivity, and the electromagnetic wave shielding layer 38 shields (shields) electromagnetic waves.

床スラブ３２上には、支持脚４０（支持部材）が複数設けられており、支持脚４０は、室内３６の下方において平面視で格子を構成する複数の直線（以下「格子線」という）の各交点部分に配置されると共に、金属製とされて導電性を有している。各支持脚４０の下端には平板状の下端板４２が設けられており、各下端板４２は床スラブ３２上に接着剤４４によって接着されて耐震性を確保されている。各下端板４２上には軸状の支持軸４６が固定されており、各支持軸４６上には平板状の上端板４８が固定されている。各支持脚４０の上端板４８上には、阻止部材としての断面台形状の位置決め部材５０が固定されており、上端板４８及び位置決め部材５０の露出された外面は、阻止部材としての導電性を有しない塗料（図示省略）によって塗装されている。 A plurality of support legs 40 (support members) are provided on the floor slab 32, and the support legs 40 are formed of a plurality of straight lines (hereinafter referred to as “lattice lines”) constituting a grid in plan view below the interior 36. It is arranged at each intersection part and is made of metal and has conductivity. A flat lower end plate 42 is provided at the lower end of each support leg 40, and each lower end plate 42 is adhered to the floor slab 32 with an adhesive 44 to ensure earthquake resistance. A shaft-like support shaft 46 is fixed on each lower end plate 42, and a flat plate-like upper end plate 48 is fixed on each support shaft 46. A positioning member 50 having a trapezoidal cross section as a blocking member is fixed on the upper end plate 48 of each support leg 40. The exposed outer surfaces of the upper end plate 48 and the positioning member 50 have conductivity as a blocking member. It is painted with paint that does not have (not shown).

図５（Ａ）に示す如く、側壁３４に隣設されない各支持脚４０における上端板４８上の位置決め部材５０は、格子線に沿って平面視十字状に形成されている。図５（Ｂ）に示す如く、側壁３４に隣設された各支持脚４０のうち、側壁３４同士の交差部位以外のものにおける上端板４８は、隣設された側壁３４側の周縁が当該側壁３４に沿って平面視直線状に形成されると共に、当該上端板４８上の位置決め部材５０は、格子線に沿って平面視Ｔ字状（図５（Ａ）の位置決め部材５０を２等分にした形状）に形成されている。図５（Ｃ）に示す如く、側壁３４に隣設された各支持脚４０のうち、側壁３４同士の交差部位のものにおける上端板４８は、当該交差部位側の周縁が当該交差部位に沿って平面視Ｌ字状に形成されると共に、当該上端板４８上の位置決め部材５０は、当該交差部位及び格子線に沿って平面視Ｌ字状（図５（Ａ）の位置決め部材５０を４等分にした形状）に形成されている。 As shown in FIG. 5A, the positioning member 50 on the upper end plate 48 in each support leg 40 not adjacent to the side wall 34 is formed in a cross shape in plan view along the grid lines. As shown in FIG. 5B, among the support legs 40 adjacent to the side wall 34, the upper end plate 48 of the support legs 40 other than the intersecting portions of the side walls 34 has a peripheral edge on the side wall 34 side adjacent to the side wall 34. The positioning member 50 on the upper end plate 48 is formed in a T-shape in plan view along the grid lines (the positioning member 50 in FIG. 5A is divided into two equal parts). Shape). As shown in FIG. 5C, among the support legs 40 adjacent to the side wall 34, the upper end plate 48 at the crossing part of the side walls 34 has a peripheral edge on the crossing part side along the crossing part. The positioning member 50 on the upper end plate 48 is formed in an L shape in plan view, and the positioning member 50 on the upper end plate 48 is divided into four equal parts in the L shape in plan view along the intersections and the grid lines. It is formed in the shape.

複数の支持脚４０上には、第１床部材または第２床部材としての平面視矩形状の床部材５２が複数支持されており、床部材５２の周面は格子線の近傍かつ格子線に平行に配置されて、複数の床部材５２が室内３６の床部分を構成すると共に、複数の床部材５２の下方に床スラブ３２との間において空間５４が形成されている。また、床部材５２は、アルミニウム製ダイカストにされて、導電性を有している。 A plurality of floor members 52 having a rectangular shape in plan view as the first floor member or the second floor member are supported on the plurality of support legs 40, and the peripheral surface of the floor member 52 is in the vicinity of the lattice lines and the lattice lines. Arranged in parallel, the plurality of floor members 52 constitute a floor portion of the room 36, and a space 54 is formed below the plurality of floor members 52 and the floor slab 32. Moreover, the floor member 52 is made of aluminum and has conductivity.

図６に詳細に示す如く、床部材５２は、下面が開放された長方体形箱状にされており、１つの平板状の上壁部５６（屈曲部を含まない）と、第１対向部材または第２対向部材としての４つの平板状の周壁部５８（屈曲部を含む）と、を有している。床部材５２の各周壁部５８の下端外側には、断面台形状の切欠６０が一様に形成されており、床部材５２は、各角部が支持脚４０の上端板４８上に載置された状態で、各角部における切欠６０が上端板４８上の位置決め部材５０に嵌合されて位置決めされている。これにより、隣設された床部材５２と上端板４８及び位置決め部材５０との間は上記塗料によって導通されないと共に、隣設された床部材５２間、及び、隣設された床部材５２と側壁３４下端近傍の電磁波シールド層３８との間は、接触せずに導通されていない。さらに、隣設された各床部材５２の周壁部５８、及び、隣設された床部材５２の周壁部５８と当該電磁波シールド層３８とは、周壁部５８の切欠６０形成部分を除く部分において、互いに平行に配置されて対向しており、対向する各床部材５２の周壁部５８間の間隔Ｄ、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との間の間隔は、可能な限り小さくされて、例えば３ｍｍ以下にされている。また、対向する各床部材５２の周壁部５８の対向面の幅Ｅ、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との対向面の幅は、可能な限り大きくされて、例えば１５ｍｍ以上５０ｍｍ以下より好ましくは３０ｍｍ以下にされている。 As shown in detail in FIG. 6, the floor member 52 has a rectangular box shape with an open lower surface, and includes a single flat plate-like upper wall portion 56 (not including a bent portion), and a first opposing member. Or it has four flat peripheral wall parts 58 (a bending part is included) as a 2nd opposing member. A notch 60 having a trapezoidal cross section is uniformly formed on the outer bottom end of each peripheral wall portion 58 of the floor member 52, and each corner portion of the floor member 52 is placed on the upper end plate 48 of the support leg 40. In this state, the notch 60 at each corner is fitted and positioned with the positioning member 50 on the upper end plate 48. Accordingly, the adjacent floor member 52 and the upper end plate 48 and the positioning member 50 are not electrically connected to each other by the paint, and between the adjacent floor members 52 and between the adjacent floor member 52 and the side wall 34. The electromagnetic wave shielding layer 38 in the vicinity of the lower end is not connected without being in contact with the electromagnetic wave shielding layer 38. Furthermore, the peripheral wall portion 58 of each adjacent floor member 52, and the peripheral wall portion 58 of the adjacent floor member 52 and the electromagnetic wave shielding layer 38, in a portion excluding the notch 60 formation portion of the peripheral wall portion 58, The distance D between the peripheral wall portions 58 of the opposing floor members 52 and the distance between the peripheral wall portions 58 of the opposing floor members 52 and the electromagnetic wave shielding layer 38 are as follows. It is made as small as possible, for example, 3 mm or less. Further, the width E of the facing surface of the peripheral wall portion 58 of each facing floor member 52 and the width of the facing surface between the peripheral wall portion 58 of the facing floor member 52 and the electromagnetic wave shielding layer 38 are made as large as possible. For example, 15 mm or more and 50 mm or less, more preferably 30 mm or less.

複数の床部材５２上には、絨毯６２が敷かれおり、絨毯６２は複数の床部材５２上から取り外し可能にされた構成である。 A carpet 62 is laid on the plurality of floor members 52, and the carpet 62 is configured to be removable from the plurality of floor members 52.

次に、本実施例の作用を説明する。 Next, the operation of this embodiment will be described.

以上の構成の床構造３０では、複数の支持脚４０上に室内３６の床部分を構成する複数の床部材５２が支持されており、室内３６の下方には空間５４が形成されている。また、側壁３４の下端近傍において電磁波シールド層３８が室内３６側へ露出すると共に、床部材５２の端部を周壁部５８が構成している。 In the floor structure 30 configured as described above, a plurality of floor members 52 constituting a floor portion of the room 36 are supported on the plurality of support legs 40, and a space 54 is formed below the room 36. In addition, the electromagnetic wave shielding layer 38 is exposed to the indoor 36 side in the vicinity of the lower end of the side wall 34, and the peripheral wall portion 58 constitutes the end portion of the floor member 52.

ここで、隣設された各床部材５２の周壁部５８、及び、隣設された床部材５２の周壁部５８と側壁３４下端近傍の電磁波シールド層３８とが、導通されない状態で、周壁部５８の切欠６０形成部分を除く部分において対向することで、対向する各床部材５２の周壁部５８の対向面積、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との対向面積を、大きくしている。 Here, the peripheral wall portion 58 of each adjacent floor member 52 and the peripheral wall portion 58 in a state where the peripheral wall portion 58 of the adjacent floor member 52 and the electromagnetic wave shielding layer 38 near the lower end of the side wall 34 are not electrically connected. The opposing area of the peripheral wall portion 58 of each opposing floor member 52 and the opposing area of the peripheral wall portion 58 of the opposing floor member 52 and the electromagnetic wave shielding layer 38 are made to face each other in the portion excluding the notch 60 forming portion. It ’s bigger.

このため、対向する各床部材５２の周壁部５８により構成されるコンデンサ、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８とにより構成されるコンデンサのインピーダンス（抵抗）を小さくすることができ、隣設された各床部材５２間、及び、隣設された床部材５２と当該電磁波シールド層３８との間からの電磁波の漏洩を効果的に低減することができる。これにより、特別な電磁波シールド部材を使用する必要をなくすことができ、このため、低コスト化を図ることができ、かつ、簡単な工法で電磁波をシールド可能な床構造３０を構築することができると共に、簡単に（絨毯６２を取り外すのみで）床部材５２を取り外して空間５４を開放させることができる。 For this reason, the impedance (resistance) of the capacitor constituted by the peripheral wall portion 58 of each facing floor member 52 and the capacitor constituted by the peripheral wall portion 58 of the facing floor member 52 and the electromagnetic wave shielding layer 38 is reduced. Therefore, leakage of electromagnetic waves between the adjacent floor members 52 and between the adjacent floor member 52 and the electromagnetic wave shielding layer 38 can be effectively reduced. Thereby, it is possible to eliminate the need to use a special electromagnetic wave shielding member, and therefore it is possible to reduce the cost and to construct the floor structure 30 capable of shielding electromagnetic waves with a simple construction method. At the same time, the floor member 52 can be removed simply by removing the carpet 62 to open the space 54.

また、支持脚４０の上端板４８及び位置決め部材５０の露出外面における塗料、及び、位置決め部材５０による床部材５２の位置決めによって、隣設された各床部材５２の周壁部５８間、及び、隣設された床部材５２の周壁部５８と当該電磁波シールド層３８との間の導通が阻止されるため、対向する各床部材５２の周壁部５８間、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との間の導通を確実に防止することができる。 Further, the paint on the exposed outer surface of the upper end plate 48 of the support leg 40 and the positioning member 50 and the positioning of the floor member 52 by the positioning member 50, and between the peripheral wall portions 58 of the adjacent floor members 52 and adjacent to each other. Since conduction between the peripheral wall portion 58 of the floor member 52 and the electromagnetic wave shielding layer 38 is prevented, the peripheral wall portions 58 of the opposing floor members 52 and the peripheral wall portion 58 of the opposing floor member 52 It is possible to reliably prevent conduction with the electromagnetic wave shielding layer 38.

さらに、対向する各床部材５２の周壁部５８の対向面、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との対向面が、互いに平行に配置されているため、対向する各床部材５２の周壁部５８の対向面積、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との対向面積が、確実に大きくなり、対向する各床部材５２の周壁部５８により構成されるコンデンサ、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８とにより構成されるコンデンサのインピーダンスを確実に小さくすることができる。これにより、隣設された各床部材５２間、及び、隣設された床部材５２と当該電磁波シールド層３８との間からの電磁波の漏洩を確実かつ効果的に低減することができる。 Furthermore, since the opposing surface of the surrounding wall part 58 of each opposing floor member 52 and the opposing surface of the surrounding wall part 58 of the opposing floor member 52 and the said electromagnetic wave shielding layer 38 are mutually arrange | positioned in parallel, it opposes. The facing area of the peripheral wall portion 58 of each floor member 52 and the facing area of the surrounding wall portion 58 of the facing floor member 52 and the electromagnetic wave shielding layer 38 are surely increased, and the peripheral wall portion 58 of each facing floor member 52 is reliably increased. And the capacitor constituted by the peripheral wall portion 58 of the floor member 52 and the electromagnetic wave shielding layer 38 facing each other can be reliably reduced. Thereby, leakage of electromagnetic waves between the adjacent floor members 52 and between the adjacent floor member 52 and the electromagnetic wave shielding layer 38 can be reliably and effectively reduced.

しかも、対向する各床部材５２の周壁部５８間の間隔Ｄ、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との間の間隔が、可能な限り小さくされる（例えば３ｍｍ以下にされる）と共に、対向する各床部材５２の周壁部５８の対向面の幅Ｅ、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との対向面の幅が、可能な限り大きくされている（例えば１５ｍｍ以上５０ｍｍ以下より好ましくは３０ｍｍ以下にされている）。このため、対向する各床部材５２の周壁部５８により構成されるコンデンサ、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８とにより構成されるコンデンサのインピーダンスを確実に小さくすることができ、隣設された各床部材５２間、及び、隣設された床部材５２と当該電磁波シールド層３８との間からの電磁波の漏洩を確実かつ効果的に低減することができる。 Moreover, the distance D between the peripheral wall portions 58 of the opposing floor members 52 and the interval between the peripheral wall portion 58 of the opposing floor members 52 and the electromagnetic wave shielding layer 38 are made as small as possible (for example, 3 mm). The width E of the facing surface of the peripheral wall portion 58 of each facing floor member 52 and the width of the facing surface between the peripheral wall portion 58 of the facing floor member 52 and the electromagnetic wave shielding layer 38 are possible. It is as large as possible (for example, 15 mm or more and 50 mm or less, more preferably 30 mm or less). For this reason, the impedance of the capacitor constituted by the peripheral wall portion 58 of each opposing floor member 52 and the capacitor constituted by the peripheral wall portion 58 of the opposing floor member 52 and the electromagnetic wave shielding layer 38 is reliably reduced. Thus, leakage of electromagnetic waves between the adjacent floor members 52 and between the adjacent floor member 52 and the electromagnetic wave shielding layer 38 can be reliably and effectively reduced.

なお、本実施例では、対向する各床部材５２の周壁部５８間、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との間に、誘電体としての空気が配置された構成としたが、対向する各床部材５２の周壁部５８間、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８との間に、空気以外の誘電体が配置された構成としてもよい。これにより、対向する各床部材５２の周壁部５８により構成されるコンデンサ、及び、対向する床部材５２の周壁部５８と当該電磁波シールド層３８とにより構成されるコンデンサのインピーダンスを一層小さくすることができ、隣設された各床部材５２間、及び、隣設された床部材５２と当該電磁波シールド層３８との間からの電磁波の漏洩を一層効果的に低減することができる。 In the present embodiment, air as a dielectric is disposed between the peripheral wall portions 58 of the opposing floor members 52 and between the peripheral wall portion 58 of the opposing floor members 52 and the electromagnetic wave shielding layer 38. Although it was set as the structure, as a structure by which dielectrics other than air are arrange | positioned between the surrounding wall part 58 of each facing floor member 52, and the surrounding wall part 58 of the facing floor member 52, and the said electromagnetic wave shield layer 38. Also good. Thereby, it is possible to further reduce the impedance of the capacitor constituted by the peripheral wall portion 58 of each facing floor member 52 and the capacitor constituted by the peripheral wall portion 58 of the facing floor member 52 and the electromagnetic wave shielding layer 38. In addition, leakage of electromagnetic waves between the adjacent floor members 52 and between the adjacent floor member 52 and the electromagnetic wave shielding layer 38 can be more effectively reduced.

（第２実施例）
図７には、本発明の第２実施例に係る床構造７０が断面図にて示されている。 (Second embodiment)
FIG. 7 is a sectional view showing a floor structure 70 according to a second embodiment of the present invention.

本実施例に係る床構造７０は、上記第１実施例と同様に、オフィスビル等の建築物の所謂ＯＡフロアに適用されて、床スラブ３２、複数の側壁３４（電磁波シールド層３８を含む）、室内３６及び複数の支持脚４０を備えている。 Similar to the first embodiment, the floor structure 70 according to the present embodiment is applied to a so-called OA floor of a building such as an office building, and includes a floor slab 32 and a plurality of side walls 34 (including an electromagnetic wave shielding layer 38). The room 36 and a plurality of support legs 40 are provided.

床構造７０では、支持脚４０が支持部材を構成している。図８に示す如く、複数の支持脚４０の支持軸４６上には、上記第１実施例の複数の上端板４８（位置決め部材５０を含む）に代えて、第２床部材としての平面視格子状の格子枠７２が固定されており、格子枠７２は格子線に沿って配置されている。また、格子枠７２の露出された外面は、阻止部材及び誘電体としての導電性を有しない塗料（図示省略）によって塗装されている。 In the floor structure 70, the support leg 40 constitutes a support member. As shown in FIG. 8, on the support shafts 46 of the plurality of support legs 40, instead of the plurality of upper end plates 48 (including the positioning member 50) of the first embodiment, a plan view lattice as a second floor member is used. A grid frame 72 is fixed, and the grid frame 72 is arranged along the grid lines. Further, the exposed outer surface of the lattice frame 72 is painted with a blocking member and a non-conductive paint (not shown) as a dielectric.

側壁３４に隣設されない部分における格子枠７２は、断面コ字状にされて下方に開放されている。側壁３４に隣設された部分における格子枠７２は、断面Ｌ字状にされて当該側壁３４に対向しており、当該格子枠７２は、側壁３４下端近傍の露出された電磁波シールド層３８に導通されている。 The lattice frame 72 in a portion not adjacent to the side wall 34 is formed in a U-shaped cross section and is opened downward. The lattice frame 72 in the portion adjacent to the side wall 34 has an L-shaped cross section and faces the side wall 34, and the lattice frame 72 is electrically connected to the exposed electromagnetic wave shielding layer 38 near the lower end of the side wall 34. Has been.

格子枠７２上には、第１床部材としての平面視矩形状の床部材７４が複数支持されており、床部材７４の周面は格子線に沿って配置されて、複数の床部材７４が室内３６の床部分を構成すると共に、複数の床部材７４の下方に床スラブ３２との間において空間５４が形成されている。 On the lattice frame 72, a plurality of floor members 74 having a rectangular shape as a first floor member are supported, and the peripheral surface of the floor member 74 is disposed along the lattice lines, and the plurality of floor members 74 are formed. A space 54 is formed between the floor slab 32 and the floor slab 32 below the plurality of floor members 74 while constituting the floor portion of the room 36.

図９に詳細に示す如く、床部材７４は、略長方体形容器状の外壁７６を有しており、外壁７６の内部にはモルタル７８が充填されている。外壁７６はスチール製にされて導電性を有しており、外壁７６（床部材７４）の外面は、阻止部材及び誘電体としての導電性を有しない塗料（図示省略）によって塗装されている。これにより、床部材７４の外壁７６と格子枠７２とは、格子枠７２の外面及び外壁７６の外面の塗料によって導通されていない。さらに、隣設された床部材７４の外壁７６と格子枠７２とは、互いに平行に配置されて対向しており、対向する床部材７４の外壁７６と格子枠７２との間の間隔Ｆは、可能な限り小さくされて、例えば３ｍｍ以下にされている。また、対向する床部材７４の外壁７６と格子枠７２との対向面の幅Ｇは、可能な限り大きくされて、例えば１５ｍｍ以上３０ｍｍ以下にされている。 As shown in detail in FIG. 9, the floor member 74 has a substantially rectangular container-like outer wall 76, and the outer wall 76 is filled with mortar 78. The outer wall 76 is made of steel and has conductivity, and the outer surface of the outer wall 76 (floor member 74) is painted with a blocking member and a non-conductive paint (not shown) as a dielectric. Thereby, the outer wall 76 of the floor member 74 and the lattice frame 72 are not electrically connected by the paint on the outer surface of the lattice frame 72 and the outer surface of the outer wall 76. Furthermore, the outer wall 76 of the floor member 74 and the lattice frame 72 that are adjacent to each other are arranged in parallel to each other and face each other, and the interval F between the outer wall 76 of the facing floor member 74 and the lattice frame 72 is It is made as small as possible, for example, 3 mm or less. Further, the width G of the facing surface between the outer wall 76 and the lattice frame 72 of the facing floor member 74 is made as large as possible, for example, 15 mm or more and 30 mm or less.

複数の床部材７４上には、絨毯６２が敷かれおり、絨毯６２は複数の床部材７４上から取り外し可能にされた構成である。 A carpet 62 is laid on the plurality of floor members 74, and the carpet 62 is configured to be removable from the plurality of floor members 74.

以上の構成の床構造７０では、複数の支持脚４０上に室内３６の床部分を構成する複数の床部材７４が支持されており、室内３６の下方には空間５４が形成されている。また、床部材７４に外壁７６が設けられると共に、複数の支持脚４０の上端に格子枠７２が設けられている。 In the floor structure 70 having the above configuration, a plurality of floor members 74 constituting the floor portion of the room 36 are supported on the plurality of support legs 40, and a space 54 is formed below the room 36. In addition, an outer wall 76 is provided on the floor member 74, and a lattice frame 72 is provided on the upper ends of the plurality of support legs 40.

ここで、隣設された床部材７４の外壁７６と支持脚４０の格子枠７２とが導通されない状態で対向することで、対向する外壁７６と格子枠７２との対向面積を大きくしている。 Here, the facing area between the outer wall 76 and the grid frame 72 facing each other is increased by opposing the outer wall 76 of the adjacent floor member 74 and the grid frame 72 of the support leg 40 in a state where they are not electrically connected.

このため、対向する外壁７６と格子枠７２とにより構成されるコンデンサのインピーダンス（抵抗）を小さくすることができ、隣設された床部材７４と支持脚４０との間からの電磁波の漏洩を効果的に低減することができる。これにより、特別な電磁波シールド部材を使用する必要をなくすことができ、このため、低コスト化を図ることができ、かつ、簡単な工法で電磁波をシールド可能な床構造７０を構築することができると共に、簡単に（絨毯６２を取り外すのみで）床部材７４を取り外して空間５４を開放させることができる。 For this reason, the impedance (resistance) of the capacitor formed by the opposed outer wall 76 and the lattice frame 72 can be reduced, and the leakage of electromagnetic waves from between the adjacent floor member 74 and the support leg 40 is effective. Can be reduced. As a result, it is possible to eliminate the need to use a special electromagnetic wave shielding member. Therefore, it is possible to reduce the cost and to construct the floor structure 70 capable of shielding electromagnetic waves with a simple construction method. At the same time, the floor member 74 can be removed simply by removing the carpet 62 to open the space 54.

また、格子枠７２の露出外面及び床部材７４の外壁７６外面における塗料によって、隣設された床部材７４と支持脚４０との間の導通が阻止されるため、対向する外壁７６と格子枠７２との間の導通を確実に防止することができる。 In addition, the paint on the exposed outer surface of the lattice frame 72 and the outer surface of the outer wall 76 of the floor member 74 prevents conduction between the adjacent floor member 74 and the support leg 40, so the opposing outer wall 76 and the lattice frame 72 are opposed to each other. Can be reliably prevented.

さらに、対向する外壁７６と格子枠７２との対向面が互いに平行に配置されているため、対向する外壁７６と格子枠７２との対向面積が確実に大きくなり、対向する外壁７６と格子枠７２とにより構成されるコンデンサのインピーダンスを確実に小さくすることができる。これにより、隣設された床部材７４と支持脚４０との間からの電磁波の漏洩を確実かつ効果的に低減することができる。 Furthermore, since the opposing surfaces of the opposing outer wall 76 and the lattice frame 72 are arranged in parallel to each other, the opposing area between the opposing outer wall 76 and the lattice frame 72 is reliably increased, and the opposing outer wall 76 and the lattice frame 72 are opposed. It is possible to reliably reduce the impedance of the capacitor constituted by the above. Thereby, the leakage of the electromagnetic wave from between the floor member 74 and the support leg 40 which were installed adjacently can be reduced reliably and effectively.

また、対向する外壁７６と格子枠７２との間に空気以外の誘電体である上記各塗料が配置されている。これにより、対向する外壁７６と格子枠７２とにより構成されるコンデンサのインピーダンスを一層小さくすることができ、隣設された床部材７４と支持脚４０との間からの電磁波の漏洩を一層効果的に低減することができる。 In addition, each of the paints, which are dielectrics other than air, is disposed between the opposing outer wall 76 and the lattice frame 72. Thereby, the impedance of the capacitor constituted by the opposed outer wall 76 and the lattice frame 72 can be further reduced, and the leakage of electromagnetic waves from between the adjacent floor member 74 and the support leg 40 is more effective. Can be reduced.

さらに、対向する外壁７６と格子枠７２との間の間隔Ｆが可能な限り小さくされる（例えば３ｍｍ以下にされる）と共に、対向する外壁７６と格子枠７２との対向面の幅Ｇが可能な限り大きくされている（例えば１５ｍｍ以上３０ｍｍ以下にされている）。このため、対向する外壁７６と格子枠７２とにより構成されるコンデンサのインピーダンスを確実に小さくすることができ、隣設された床部材７４と支持脚４０との間からの電磁波の漏洩を確実かつ効果的に低減することができる。 Further, the distance F between the opposing outer wall 76 and the lattice frame 72 is made as small as possible (for example, 3 mm or less), and the width G of the opposing surface between the opposing outer wall 76 and the lattice frame 72 is possible. It is made as large as possible (for example, 15 mm or more and 30 mm or less). For this reason, the impedance of the capacitor formed by the opposed outer wall 76 and the lattice frame 72 can be reliably reduced, and the leakage of electromagnetic waves from between the adjacent floor member 74 and the support leg 40 is ensured and reliably. It can be effectively reduced.

以上、本発明の実施例について説明したが、本発明は、こうした実施例に何等限定されるものでなく、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。 As mentioned above, although the Example of this invention was described, this invention is not limited to such an Example at all, Of course, in the range which does not deviate from the summary of this invention, it can implement in a various aspect. .

本発明の電磁波シールド原理が適用された電磁波シールド構造を示す断面図である。It is sectional drawing which shows the electromagnetic wave shield structure to which the electromagnetic wave shield principle of this invention was applied. 本発明の電磁波シールド原理が適用された電磁波シールド構造において誘電率が１．０Ｆ／ｍの誘電体が対向部間の隙間に挿入された場合における対向部間の間隔と対向部間の隙間の電磁波シールド性能との関係の実験結果を示すグラフであり、（Ａ）は、到来する電磁波の周波数が２．４５ＧＨｚにされた場合であり、（Ｂ）は、到来する電磁波の周波数が５．２ＧＨｚにされた場合である。In the electromagnetic wave shielding structure to which the electromagnetic wave shielding principle of the present invention is applied, when a dielectric having a dielectric constant of 1.0 F / m is inserted into the gap between the opposed parts, the distance between the opposed parts and the electromagnetic wave in the gap between the opposed parts It is a graph which shows the experimental result of the relationship with a shield performance, (A) is a case where the frequency of the incoming electromagnetic wave is set to 2.45 GHz, (B) is the frequency of the incoming electromagnetic wave to 5.2 GHz. This is the case. 本発明の電磁波シールド原理が適用された電磁波シールド構造において誘電率が４．０Ｆ／ｍの誘電体が対向部間の隙間に挿入された場合における対向部間の間隔と対向部間の隙間の電磁波シールド性能との関係の実験結果を示すグラフであり、（Ａ）は、到来する電磁波の周波数が２．４５ＧＨｚにされた場合であり、（Ｂ）は、到来する電磁波の周波数が５．２ＧＨｚにされた場合である。In the electromagnetic wave shielding structure to which the electromagnetic wave shielding principle of the present invention is applied, when a dielectric having a dielectric constant of 4.0 F / m is inserted into the gap between the opposed parts, the distance between the opposed parts and the electromagnetic wave in the gap between the opposed parts It is a graph which shows the experimental result of the relationship with a shield performance, (A) is a case where the frequency of the incoming electromagnetic wave is set to 2.45 GHz, (B) is the frequency of the incoming electromagnetic wave to 5.2 GHz. This is the case. 本発明の第１実施例に係る床構造を示す断面図である。It is sectional drawing which shows the floor structure concerning 1st Example of this invention. （Ａ）乃至（Ｃ）は、本発明の第１実施例に係る床構造における支持脚を示す斜視図である。(A) thru | or (C) is a perspective view which shows the support leg in the floor structure based on 1st Example of this invention. 本発明の第１実施例に係る床構造の主要部を示す断面図である。It is sectional drawing which shows the principal part of the floor structure concerning 1st Example of this invention. 本発明の第２実施例に係る床構造を示す断面図である。It is sectional drawing which shows the floor structure concerning 2nd Example of this invention. 本発明の第２実施例に係る床構造における支持脚を示す斜視図である。It is a perspective view which shows the support leg in the floor structure concerning 2nd Example of this invention. 本発明の第２実施例に係る床構造の主要部を示す断面図である。It is sectional drawing which shows the principal part of the floor structure concerning 2nd Example of this invention.

符号の説明Explanation of symbols

３０床構造
３６室内
３８電磁波シールド層（第２対向部材）
４０支持脚（支持部材）
５０位置決め部材（阻止部材）
５２床部材（第１床部材または第２床部材）
５４空間
５８周壁部（第１対向部材または第２対向部材）
７０床構造
７２格子枠（第２対向部材）
７４床部材
７６外壁（第１対向部材） 30 Floor structure 36 Room 38 Electromagnetic wave shielding layer (second opposing member)
40 Support legs (support members)
50 Positioning member (blocking member)
52 Floor member (first floor member or second floor member)
54 space 58 peripheral wall (first opposing member or second opposing member)
70 Floor structure 72 Lattice frame (second opposing member)
74 Floor member 76 Outer wall (first opposing member)

Claims

導電性を有し、下方に空間が形成される室内の床部分を構成する第１床部材の端部に設けられた第１対向部材と、
導電性を有し、前記第１導電部材に導通されない状態で前記第１導電部材に対向する第２対向部材と、
を備えた床構造。 A first opposing member provided at an end of a first floor member that has electrical conductivity and forms a floor portion in a room in which a space is formed below;
A second opposing member having electrical conductivity and facing the first conductive member in a state of being not conducted to the first conductive member;
With floor structure.

前記第２対向部材は、前記室内の床部分を構成する第２床部材の端部に設けられた、ことを特徴とする請求項１記載の床構造。 The floor structure according to claim 1, wherein the second facing member is provided at an end of a second floor member that constitutes a floor portion in the room.

導電性を有し、室内の床部分を構成する床部材に設けられた第１対向部材と、
導電性を有し、前記床部材を支持する支持部材に設けられると共に、前記第１対向部材に導通されない状態で前記第１対向部材に対向する第２対向部材と、
を備えた床構造。 A first opposing member having electrical conductivity and provided on a floor member constituting the indoor floor portion;
A second opposing member that is electrically conductive and is provided on a support member that supports the floor member, and that faces the first opposing member in a state that is not conducted to the first opposing member;
With floor structure.

前記第１対向部材と前記第２対向部材との導通を阻止する阻止部材を備えた、ことを特徴とする請求項１乃至請求項３の何れか１項記載の床構造。 The floor structure according to any one of claims 1 to 3, further comprising a blocking member that blocks conduction between the first facing member and the second facing member.

前記第１対向部材と前記第２対向部材とを互いに略平行に配置した、ことを特徴とする請求項１乃至請求項４の何れか１項記載の床構造。 The floor structure according to any one of claims 1 to 4, wherein the first opposing member and the second opposing member are arranged substantially parallel to each other.

前記第１対向部材と前記第２対向部材との間に誘電体を設けた、ことを特徴とする請求項１乃至請求項５の何れか１項記載の床構造。 The floor structure according to any one of claims 1 to 5, wherein a dielectric is provided between the first opposing member and the second opposing member.

前記第１対向部材の前記第２対向部材との対向面及び前記第２対向部材の前記第１対向部材との対向面の幅を１５ｍｍ以上にすると共に、前記第１対向部材と前記第２対向部材との間隔を３ｍｍ以下にした、ことを特徴とする請求項１乃至請求項６の何れか１項記載の床構造。 The width of the facing surface of the first facing member to the second facing member and the facing surface of the second facing member to the first facing member is set to 15 mm or more, and the first facing member and the second facing surface. The floor structure according to any one of claims 1 to 6, wherein an interval between the members is 3 mm or less.