JP4666502B2 - Door structure in electromagnetic shield room - Google Patents

Door structure in electromagnetic shield room Download PDF

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JP4666502B2
JP4666502B2 JP2006002005A JP2006002005A JP4666502B2 JP 4666502 B2 JP4666502 B2 JP 4666502B2 JP 2006002005 A JP2006002005 A JP 2006002005A JP 2006002005 A JP2006002005 A JP 2006002005A JP 4666502 B2 JP4666502 B2 JP 4666502B2
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door
opening
room
shield
conductive material
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JP2007184436A (en
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公彦 辻
文温 谷口
哲郎 岡部
崇 加藤
利明 遠藤
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Okamura Corp
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本発明は、周囲を導電材により覆った部屋の一部に開口を設け、該開口を開閉可能な導電材を使用したドアを設け、該ドアにより前記開口を閉塞した状態で、ドアの周縁部と前記開口の周縁部とを導通させて、外部から部屋内への電磁波の進入も部屋から外部への電磁波の漏洩も防止することができるようにした電磁シールド部屋におけるドア構造に関する。   The present invention provides an opening in a part of a room whose periphery is covered with a conductive material, a door using a conductive material capable of opening and closing the opening, and the periphery of the door in a state where the opening is closed by the door And a door structure in an electromagnetic shield room in which an electromagnetic wave enters the room from the outside and leakage of the electromagnetic wave from the room to the outside can be prevented.

外部から部屋内への電磁波の進入や部屋から外部への電磁波の漏洩を防止するようにした従来の電磁シールド部屋におけるドア構造は、導電材により覆った部屋の一部に開口を設けるとともに、この開口を開閉する導電材を使用したドアを設け、開口を構成する上枠材と左右の竪枠材の外周面に導電性のシールドパッキンを装着し、ドアの下部に上下方向に移動可能な導電性のシールドパッキンを装着した閉鎖部材を取り付けて、ドアにより開口を閉塞した時に、ドアの外周面とシールドパッキンと当接させた上で、押圧機構によりドアの外周面とシールドパッキンを押し付けて密着させることで、電磁波の進入を防止していた（例えば、特許文献１参照）。   The door structure in the conventional electromagnetic shield room that prevents the electromagnetic wave from entering the room from outside and the leakage of the electromagnetic wave from the room to the outside is provided with an opening in a part of the room covered with the conductive material. A door using conductive material that opens and closes the opening is provided, and conductive shield packing is attached to the outer peripheral surface of the upper frame material and the left and right frame materials constituting the opening, and the conductive material that can move vertically in the lower part of the door When a closing member fitted with a shield packing is attached and the opening is closed by the door, the outer peripheral surface of the door and the shield packing are brought into contact with each other, and the outer peripheral surface of the door and the shield packing are pressed and adhered by a pressing mechanism. This prevents the electromagnetic wave from entering (see, for example, Patent Document 1).

特開平１１−１０１０７４号公報（段落００１７、００１８及び００２４、図２、図４）JP 11-101074 A (paragraphs 0017, 0018 and 0024, FIGS. 2 and 4)

しかしながら、特許文献１における電磁シールド部屋におけるドア構造は、ドアの外周面とシールドパッキンを確実に密着させるために押圧機構が必要でコスト高になるばかりでなく、押圧機構の操作をドアの開閉のために常に行わなければならず操作に手間が掛かり、しかもドア閉塞時に押圧操作を怠ると電磁波が侵入する虞があった。また、シールドパッキンを長時間閉塞しているためその劣化が激しく長期に渡り導電性を確保することに難点があった。   However, the door structure in the electromagnetic shield room in Patent Document 1 requires a pressing mechanism to ensure the close contact between the outer peripheral surface of the door and the shield packing, which increases the cost. Therefore, the operation has to be performed constantly, and the operation is troublesome. Further, if the pressing operation is neglected when the door is closed, there is a possibility that electromagnetic waves may enter. Further, since the shield packing is closed for a long time, the deterioration thereof is severe, and there is a difficulty in ensuring the conductivity over a long period of time.

本発明は、このような問題点に着目してなされたもので、ドアに強い押し付け力を与える押圧機構を設ける必要がなくかつ短時間で開閉でき、しかも長期に渡り導電性を確保して電磁波の侵入を確実に防止することができる電磁シールド部屋におけるドア構造を提供することを目的とする。   The present invention has been made paying attention to such a problem, and it is not necessary to provide a pressing mechanism that gives a strong pressing force to the door, and can be opened and closed in a short time, and the electromagnetic wave is ensured for a long period of time by ensuring the conductivity. An object of the present invention is to provide a door structure in an electromagnetic shield room that can surely prevent the intrusion of the door.

上記課題を解決するために、本発明の請求項１に記載の電磁シールド部屋におけるドア構造は、周囲を導電材により覆った部屋の一部に開口を設け、該開口を開閉可能な導電材を使用したドアを設け、該ドアにより前記開口を閉塞した状態で、ドアの外周縁部と前記開口の内周縁部とを導通させて、外部から部屋内への電磁波の進入も部屋内から外部への電磁波の漏洩も防止することができるようにした電磁シールド部屋におけるドア構造において、前記ドアによる前記開口の閉塞状態で、ドアの外周縁部と前記開口の内周縁部とを対向させるとともに、前記ドアの開放時に前記開口側に面する表面板が少なくとも導電材として構成され、該表面板の外周囲には連続した溝条が設けられ、該溝条の底面には、該溝条の両内側面と離間して対向する弾性変形可能な両側片を有する外側に開口した断面略コ字形の導電材からなる受部が設けられ、該受部における両側片の互いが対向する内側面には、弾性変形可能な導電材からなる緩衝材が設けられ、更に前記開口にはドア側に向けて前記部屋の導電材に導通する導電材からなる嵌合片が突設されており、該嵌合片の両側と前記緩衝材の各々とが当接していることを特徴としている。
この特徴によれば、導電性を確実に維持するためにドアに強い押し付け力を与える付加装置の必要がないので、ドアの開閉に時間を要すことがないばかりでなく、部屋とドアの接触部材の早期交換の必要がなく、しかも安価に構築できる。 In order to solve the above-described problem, the door structure in the electromagnetic shield room according to claim 1 of the present invention is provided with an opening in a part of a room whose periphery is covered with a conductive material, and a conductive material capable of opening and closing the opening. In the state where the used door is provided and the opening is closed by the door, the outer peripheral edge portion of the door and the inner peripheral edge portion of the opening are electrically connected, so that electromagnetic waves enter the room from the outside to the outside. In the door structure in the electromagnetic shield room that can also prevent leakage of electromagnetic waves in the closed state of the opening by the door, the outer peripheral edge of the door and the inner peripheral edge of the opening are opposed to each other, and A surface plate facing the opening side when the door is opened is configured as at least a conductive material, and a continuous groove is provided on the outer periphery of the surface plate. Opposite from the side A receiving portion made of a conductive material having a substantially U-shaped cross section that is open to the outside and having both side pieces that can be elastically deformed. Further, the opening is provided with fitting pieces made of a conductive material projecting from the conductive material of the room toward the door side, and both sides of the fitting piece and the cushioning material. Each of which is in contact with each other.
According to this feature, there is no need for an additional device that applies a strong pressing force to the door in order to reliably maintain conductivity, so that not only does it take time to open and close the door, but also the contact between the room and the door. There is no need for early replacement of members, and construction can be made at low cost.

本発明の請求項２に記載の電磁シールド部屋におけるドア構造は、請求項１に記載の電磁シールド部屋におけるドア構造であって、前記緩衝材が、スポンジ状の芯材を導電性ファブリックで覆ったものであることを特徴としている。
この特徴によれば、ドアによって開口を閉塞状態とする時に、受部の両側片に設けた緩衝材間に嵌合片を軽い力で入れることができ、耐久性が向上すると共に、ドアと部屋との導電性も充分に確保することができる。 The door structure in the electromagnetic shield room according to claim 2 of the present invention is the door structure in the electromagnetic shield room according to claim 1, wherein the cushioning material covers the sponge-like core material with a conductive fabric. It is characterized by being.
According to this feature, when the opening is closed by the door, the fitting piece can be inserted with a light force between the cushioning materials provided on both side pieces of the receiving portion, and the durability is improved and the door and the room are also improved. It is also possible to ensure sufficient conductivity.

本発明の請求項３に記載の電磁シールド部屋におけるドア構造は、請求項１または２に記載の電磁シールド部屋におけるドア構造であって、前記受部における両側片の略中央部に屈曲部を形成し、該屈曲部から先を外方に向けて互いが遠ざかる方向に拡開させ、前記屈曲部を挟んだ基側と先側に各々別の緩衝材を内設したことを特徴としている。
この特徴によれば、ドアによって開口を閉塞状態とする時に、受部の両側片に設けた緩衝材間に嵌合片をより軽い力で入れることができ、かつ、各緩衝材と嵌合片との接触箇所が増えるため、ドアと部屋との導電性をより確実に確保することができる。 The door structure in the electromagnetic shield room according to claim 3 of the present invention is the door structure in the electromagnetic shield room according to claim 1 or 2, wherein a bent portion is formed at a substantially central portion of both side pieces in the receiving portion. In addition, the present invention is characterized in that the bent portion is expanded in a direction away from each other toward the outside, and different cushioning materials are respectively provided on the base side and the front side across the bent portion.
According to this feature, when the opening is closed by the door, the fitting piece can be inserted between the cushioning materials provided on both side pieces of the receiving portion with a lighter force, and each cushioning material and the fitting piece Since the number of contact points increases, the conductivity between the door and the room can be ensured more reliably.

本発明の請求項４に記載の電磁シールド部屋におけるドア構造は、請求項１に記載の電磁シールド部屋におけるドア構造であって、前記緩衝材が、長手方向に並ぶ多数の板バネ材であることを特徴としている。
この特徴によれば、緩衝材を板バネ材で構成したので、安価でかつ製作が容易であり、ドアによって開口を閉塞状態とする時に、受部の両側片に設けた多数の板バネ材間に嵌合片を軽い力で入れることができるとともに、ドアと部屋との導電性も確実に確保することができる。 The door structure in the electromagnetic shield room according to claim 4 of the present invention is the door structure in the electromagnetic shield room according to claim 1, wherein the cushioning material is a large number of leaf spring materials arranged in the longitudinal direction. It is characterized by.
According to this feature, since the cushioning material is constituted by a leaf spring material, it is inexpensive and easy to manufacture, and when the opening is closed by the door, it is between a plurality of leaf spring materials provided on both side pieces of the receiving portion. The fitting piece can be inserted into the door with a light force, and the electrical conductivity between the door and the room can be reliably ensured.

本発明の実施例を以下に説明する。   Examples of the present invention will be described below.

図１は、本発明の実施例１における電磁シールド部屋およびシールドドアの全体像を示す部分切り欠き斜視図であり、図２は、図１のＡ−Ａ断面図であり、図３は、図１のＢ−Ｂ断面図であり、図４（ａ）は、受部材の一部破断斜視図であり、図４（ｂ）は、シールドドアの溝条内に設けられた受部材の断面図であり、図５は、電磁シールド部屋の開口を閉塞するシールドドアが開放された状態を示す斜視図であり、図６は、シールドドアで開口を閉塞する過程を示す要部拡大断面図で、（ａ）は閉塞前の状態、（ｂ）は開口側の嵌合片に受部材が当接された状態、（ｃ）はシールドドアの閉塞状態を示す。   1 is a partially cutaway perspective view showing an entire image of an electromagnetic shield room and a shield door in Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 4A is a partially cutaway perspective view of the receiving member, and FIG. 4B is a sectional view of the receiving member provided in the groove of the shield door. FIG. 5 is a perspective view showing a state in which a shield door that closes the opening of the electromagnetic shield room is opened, and FIG. 6 is an enlarged cross-sectional view of a main part showing a process of closing the opening with the shield door. (A) is a state before closing, (b) is a state where the receiving member is in contact with the fitting piece on the opening side, and (c) is a closing state of the shield door.

この電磁シールド部屋１は、主に病院に設置される生体検査部屋（心電図部屋・脳波部屋・筋電図部屋・誘発電位部屋・平衡機能部屋・聴力検査部屋・ＭＲＩ部屋）等に用いられ、外部からの電波（例えば、携帯電話・院内無線ＬＡＮおよび医用テレメータ等の無線システム）による医療機器の誤作動の発生を防止するために使用され、特に医療現場では電磁波が発生する機器および電磁波による影響を受けやすい機器とが混在しているとともに、近年では前述の携帯電話や無線のように発生源が移動して障害の原因が掴みにくい状況である。   This electromagnetic shield room 1 is mainly used in biopsy rooms (electrocardiogram rooms, electroencephalogram rooms, electromyogram rooms, evoked potential rooms, balanced function rooms, audiometry rooms, MRI rooms) installed in hospitals. Used to prevent the malfunction of medical devices caused by radio waves (for example, wireless systems such as mobile phones, in-hospital wireless LANs, and medical telemeters). In addition to the presence of devices that are easy to receive, in recent years, the source has moved and the cause of the failure is difficult to grasp, such as the above-described mobile phone and radio.

そこで、図１に示されるように、外部からの電磁波を遮蔽するために電磁シールド部屋１が利用される。また、研究機関の実験部屋等で部屋内の電磁波を外部に漏出させない場合にも、同様に電磁シールド部屋１が利用される。この電磁シールド部屋１には、多層の内壁（本実施例では三層構造）が設けられており、部屋内１ａを覆う第一層として、仕上内装材２、第２層として、溶融亜鉛メッキしたシールド鋼板３、第三層として、電磁シールド部屋１を支える建築構造体４が用いられている。   Therefore, as shown in FIG. 1, an electromagnetic shield room 1 is used to shield electromagnetic waves from the outside. Similarly, the electromagnetic shield room 1 is also used when electromagnetic waves in the room are not leaked to the outside in a laboratory room of a research institution. This electromagnetic shield room 1 is provided with a multilayer inner wall (three-layer structure in this embodiment), and is finished galvanized as a finish interior material 2 and a second layer as a first layer covering the room 1a. As the shield steel plate 3 and the third layer, a building structure 4 that supports the electromagnetic shield room 1 is used.

電磁シールド部屋１には、通路９側に連通する縦長矩形の開口６が形成されるとともに、その近接位置に部屋内１ａの内部観察を兼ねた安全確保のための電磁波遮断機能を備えたシールド窓５が設置されている。この開口６にはシールドドア１０が複数のヒンジ１０ｂを介して取り付けられ、ノブ１０ａの操作によってシールドドア１０を通路９側に開閉可能になっている。このシールドドア１０には電波や磁気を遮断するシールド層が適用されている。以下、本実施例の説明において、図１で示した電磁シールド部屋１の通路９側を前方をとし、電磁シールド部屋１の部屋内１ａ側を後方として説明する。   In the electromagnetic shield room 1, a vertically long rectangular opening 6 communicating with the passage 9 side is formed, and a shield window provided with an electromagnetic wave shielding function for ensuring safety while also observing the inside of the room 1a in the vicinity of the opening 6 5 is installed. A shield door 10 is attached to the opening 6 via a plurality of hinges 10b, and the shield door 10 can be opened and closed to the passage 9 side by operating the knob 10a. The shield door 10 is applied with a shield layer that blocks radio waves and magnetism. Hereinafter, in the description of this embodiment, the passage 9 side of the electromagnetic shield room 1 shown in FIG. 1 will be referred to as the front, and the interior 1a side of the electromagnetic shield room 1 will be described as the rear.

尚、特に図示しないが、電磁シールド部屋１には隣接または近接して電源ラインフィルターを備えたフィルターボックスおよび絶縁トランスが設置され、溶融亜鉛メッキしたシールド鋼板３に接続されており、電磁シールド部屋１の外部および内部からシールド鋼板３に導電された電磁波が確実に遮断されるとともに、部屋内１ａに設けられた照明等の電源線から発生するノイズを遮断する。つまり、部屋内１ａに設置される機器は外部からの電磁波の影響を受けず、電磁シールド部屋１の外部に設置される機器も部屋内１ａの機器からの電磁波の影響を受けない構成になっている。   Although not particularly illustrated, the electromagnetic shield room 1 is provided with a filter box equipped with a power line filter and an insulating transformer adjacent to or close to the electromagnetic shield room 1 and connected to the hot-dip galvanized shield steel plate 3. Electromagnetic waves conducted to the shield steel plate 3 from outside and inside are reliably cut off, and noise generated from power supply lines such as lighting provided in the room 1a is cut off. That is, the device installed in the room 1a is not affected by the electromagnetic wave from the outside, and the device installed outside the electromagnetic shield room 1 is also not affected by the electromagnetic wave from the device in the room 1a. Yes.

次に、開口６およびシールドドア１０について具体的に説明する。図２および図３に示されるように、シールドドア１０が開口６に閉塞された状態においては、開口６の内周縁部７と、シールドドア１０の外周縁部１１とが互いに対向している。そして、開口６からシールドドア１０に向けて突出した導電性を有する嵌合片８がボルト２０で前述したシールド鋼板３を介して建築構造体４に強固に固定されている。   Next, the opening 6 and the shield door 10 will be specifically described. As shown in FIGS. 2 and 3, when the shield door 10 is closed by the opening 6, the inner peripheral edge 7 of the opening 6 and the outer peripheral edge 11 of the shield door 10 face each other. And the fitting piece 8 which has the conductivity protruded toward the shield door 10 from the opening 6 is firmly fixed to the building structure 4 via the shield steel plate 3 described above with the bolt 20.

開口６を閉塞するシールドドア１０は、部屋内１ａ側に表面板１２ａを有する鋼板で成形された縦長矩形の後方扉部１２Ａと通路９側に外面板１２ｂを有する同じく鋼板で成形された前方扉部１２Ｂとを一体的に接合されており、この後方扉部１２Ａと前方扉部１２Ｂは鋼板の表面全てに溶融亜鉛メッキが施されている。後方扉部１２Ａの外周部近傍には、部屋側に開口する連続した溝条１３が形成されている。   The shield door 10 that closes the opening 6 includes a vertically long rectangular rear door portion 12A formed of a steel plate having a surface plate 12a on the interior 1a side and a front door formed of the same steel plate having an outer surface plate 12b on the passage 9 side. The portion 12B is integrally joined, and the rear door portion 12A and the front door portion 12B are hot-dip galvanized on the entire surface of the steel plate. A continuous groove 13 that opens to the room side is formed in the vicinity of the outer peripheral portion of the rear door 12A.

尚、このシールドドア１０の閉塞時においては、シールドドア１０の前方扉部１２Ｂに設けられた鈎部１０ｃが、開口６側に形成された鈎受け凹部７ｂに係合してロックされ、シールドドア１０の安易な開放が阻止されている。特に図示しないが、電磁シールド部屋１は厳重に管理されており、シールドドア１０およびその近傍には別途セキュリティーの高いロック機構が設けられている。   When the shield door 10 is closed, the flange portion 10c provided on the front door portion 12B of the shield door 10 is engaged and locked with the flange receiving recess portion 7b formed on the opening 6 side. Ten easy opening is blocked. Although not particularly illustrated, the electromagnetic shield room 1 is strictly managed, and a lock mechanism with high security is provided separately in the shield door 10 and the vicinity thereof.

次いで、受部材１５について図４（ａ）、図４（ｂ）に基づき具体的に説明する。受部材１５は導電性のある金属板が折り曲げて断面視略コ字状に成型され、両側に弾性変形可能な溝条１３の内側面１３ａから離間して対向するバネ製銅合金から成る側片１５Ａ，１５Ａと、この両側片１５Ａ，１５Ａに連接した底片１５Ｂを有している。側片１５Ａ，１５Ａの略中央部が屈曲されて屈曲部を構成し、この屈曲部の基側は垂直部１５ｃ，１５ｃを、屈曲部の先側は、両遊端の先が部屋内側に向かって互いに遠ざかる方向に拡開された拡開部１５ａ，１５ａを構成するように形成されている。   Next, the receiving member 15 will be specifically described with reference to FIGS. 4 (a) and 4 (b). The receiving member 15 is a side piece made of a spring copper alloy which is formed by bending a conductive metal plate into a substantially U-shape in cross-sectional view and spaced apart from the inner side surface 13a of the groove 13 which can be elastically deformed on both sides. 15A, 15A and a bottom piece 15B connected to both side pieces 15A, 15A. The substantially central portions of the side pieces 15A and 15A are bent to form a bent portion, the base side of the bent portion is the vertical portions 15c and 15c, and the tip side of the bent portion is the tip of both free ends toward the inside of the room. Are formed so as to constitute expanded portions 15a, 15a that are expanded in a direction away from each other.

垂直部１５ｃ，１５ｃの互いに対向する内側面に沿って、断面視矩形の緩衝材１７，１７が各々設けられており、同様に拡開部１５ａ，１５ａの互いに対向する内側面に沿って、緩衝材１８，１８が各々設けられている。これら緩衝材１７，１８は内部に弾性力の有するウレタンスポンジの芯材１７ａ，１８ａが設けられ、その外周に導電性があり滑り性を備えた金属膜シート材からなる導電性ファブリック１７ｂ，１８ｂで無端状に覆われおり、この導電性ファブリック１７ｂ，１８ｂと、垂直部１５ｃおよび拡開部１５ａとが互いに各々導電可能に溶着されている。底片１５Ｂには、ボルト貫通孔１５ｂが所定間隔毎に複数形成されており、ボルト１９がボルト貫通孔１５ｂを介して溝条１３の底面１３ｂに形成されたボルト穴１３ｂ’に螺着され、受部材１５が固定されている。   Along the inner surfaces of the vertical portions 15c, 15c facing each other, cushioning members 17, 17 having a rectangular cross-sectional view are provided, respectively, and similarly, the cushioning members 15a, 15a are cushioned along the inner surfaces facing each other. Materials 18 and 18 are provided respectively. These shock-absorbing materials 17 and 18 are provided with urethane sponge cores 17a and 18a having elastic force inside, and conductive fabrics 17b and 18b made of a metal film sheet material having conductivity and slipperiness on the outer periphery thereof. The conductive fabrics 17b and 18b, the vertical portion 15c, and the expanded portion 15a are welded so as to be electrically conductive with each other. A plurality of bolt through holes 15b are formed at predetermined intervals in the bottom piece 15B, and the bolts 19 are screwed into bolt holes 13b 'formed in the bottom surface 13b of the groove 13 through the bolt through holes 15b. The member 15 is fixed.

図５および図６（ａ）に示されるように、開口６からシールドドア１０が開放され、部屋内１ａと通路９が連通された状態から、ノブ１０ａ等を利用して再度シールドドア１０を開口６に向けて移動していくと、シールドドア１０はヒンジ１０ｂの上下軸を中心にしてドア外周縁部１０ａが開口内周縁部７に向かって移動する。   As shown in FIG. 5 and FIG. 6A, the shield door 10 is opened from the opening 6, and the shield door 10 is opened again using the knob 10a or the like after the interior 1a and the passage 9 are communicated. When moving toward 6, the door outer peripheral edge 10a moves toward the opening inner peripheral edge 7 around the vertical axis of the hinge 10b.

そしてシールドドア１０が開口６に向かって更に移動すると、図６（ｂ）に示されるように、仕上内装材２のシールドドア１０側に突出した部分を導電性の金属で覆った嵌合片８の外側面８ａ先端が一方の緩衝材１８に当接され、導電性ファブリック１８ｂに沿って受部材１５の中心に向けて案内されていく。このとき側片１５Ａが溝条１３の内側面１３ａから離間しているので、拡開部１５ａ，１５ａが嵌合片８に向けて拡開でき、嵌合片８の先端が円滑かつ確実に受部材１５内に案内される。嵌合片８の緩衝材１８への当接時には、スポンジ状の芯材１８ａの弾性力および側片１５Ａの弾性変形によって、嵌合片８の拡開部１５ａへの衝撃が避けられ、受部材１５および嵌合片８の耐久性が向上すると共に、側片１５Ａには常に内側方向への弾性復帰力（バネ力）が付与されることになり、両者の密着性を高めることができる。   When the shield door 10 further moves toward the opening 6, as shown in FIG. 6B, the fitting piece 8 in which the portion of the finished interior material 2 that protrudes toward the shield door 10 is covered with a conductive metal. The front end of the outer surface 8a is brought into contact with one of the cushioning members 18 and guided toward the center of the receiving member 15 along the conductive fabric 18b. At this time, since the side piece 15A is separated from the inner side surface 13a of the groove 13, the expanded portions 15a, 15a can be expanded toward the fitting piece 8, and the tip of the fitting piece 8 is received smoothly and reliably. Guided into member 15. When the fitting piece 8 is brought into contact with the cushioning material 18, the elastic force of the sponge-like core 18 a and the elastic deformation of the side piece 15 A can avoid an impact on the expanded portion 15 a of the fitting piece 8. 15 and the fitting piece 8 are improved in durability, and an elastic restoring force (spring force) in the inward direction is always applied to the side piece 15A, thereby improving the adhesion between the two.

シールドドア１０が完全に閉塞状態になると、図６（ｃ）に示されるように、嵌合片８の先端が垂直部１５ｃ，１５ｃに設けられた緩衝材１７，１７間に挟持されるように案内され、嵌合片８の先端近傍の外側面８ａ，８ａと導電性ファブリック１７ｂ，１８ｂとが密着して嵌合されることにより、電磁シールド部屋１の部屋内１ａが電磁波から遮断される。また、緩衝材１７，１８と嵌合片８との嵌合により、開口６とシールドドア１０の間に隙間を生じさせることがなく、気密性が充分に確保されるとともに、嵌合片８が独立して変位可能な２対の緩衝材１７，１８により当接しているので、シールドドア１０と電磁シールド部屋１との導電性をより確実に確保することができる。   When the shield door 10 is completely closed, as shown in FIG. 6C, the tip of the fitting piece 8 is sandwiched between the cushioning materials 17 and 17 provided in the vertical portions 15c and 15c. When guided and the outer surfaces 8a, 8a in the vicinity of the tip of the fitting piece 8 and the conductive fabrics 17b, 18b are closely fitted to each other, the interior 1a of the electromagnetic shield room 1 is shielded from electromagnetic waves. Further, the fitting between the cushioning members 17 and 18 and the fitting piece 8 does not cause a gap between the opening 6 and the shield door 10, and sufficient airtightness is ensured. Since they are in contact by two pairs of shock-absorbing materials 17 and 18 that can be displaced independently, the conductivity between the shield door 10 and the electromagnetic shield room 1 can be ensured more reliably.

特に図示しないが、シールドドア１０を開放する過程では、前述の嵌合片８と受部材１５との嵌合過程とは逆の過程で両部材８，１５の嵌合状態が解除され、開口６からシールドドア１０の開放が行われるとともに、受部材１５の側片１５Ａ，１５Ａの弾性復帰力により、嵌合前の状態に復元される。   Although not particularly illustrated, in the process of opening the shield door 10, the fitting state of both the members 8 and 15 is released in the process opposite to the fitting process of the fitting piece 8 and the receiving member 15, and the opening 6 is opened. The shield door 10 is opened from the side and restored to the state before fitting by the elastic restoring force of the side pieces 15A, 15A of the receiving member 15.

そしてシールドドア１０の開閉が繰り返し行われた場合においても、側片１５Ａ，１５Ａには、弾性変形可能な金属板が用いられているので、受部材１５に衝撃が加わることがなく、長期に使用が可能であり、しかもシールドドア１０の押し付け装置を備える必要がないので、シールドドア１０の開閉に時間を要すことが避けられ、しかもコストも安価に抑えることができる。また、芯材１７ａ，１８ａが導電性ファブリック１７ｂ，１８ｂで覆われ、導電性を有する側片１５Ａ，１５Ａに溶着されているので、導電材であるシールド鋼板３に接続される嵌合片８と、後方扉部１２Ａとの導電性が受部材１５を介して確保されるので、外部から部屋内１ａへの電磁波の侵入と部屋内１ａから外部への電磁波の漏洩とを確実に防止することができる。   Even when the shield door 10 is repeatedly opened and closed, the side pieces 15A and 15A are made of elastically deformable metal plates, so that the receiving member 15 is not impacted and used for a long time. In addition, since it is not necessary to provide a pressing device for the shield door 10, it is possible to avoid the time required for opening and closing the shield door 10, and it is possible to keep the cost low. Further, since the core members 17a and 18a are covered with the conductive fabrics 17b and 18b and welded to the conductive side pieces 15A and 15A, the fitting pieces 8 connected to the shield steel plate 3 which is a conductive material and In addition, since conductivity with the rear door portion 12A is ensured through the receiving member 15, it is possible to reliably prevent electromagnetic waves from entering the room 1a from the outside and leakage of electromagnetic waves from the room 1a to the outside. it can.

尚、上述した本実施例においては、電磁シールド部屋１に対するシールドドア１０の取り付けが通路９側に開放される外開き仕様となっているが、本発明はこれに限定されるものではなく、特に図示しないが例えば変形例として、このシールドドア１０が部屋内１ａに向けて押し込むことで開放される内開き仕様としてもよい。この場合、実施例１とは逆に、嵌合片を部屋内１ａに向けて突設し、シールドドア１０の開口側の前方扉部の外周囲に溝条を設け、この溝条内に嵌合片を嵌合可能な受部材を設けることで、シールドドアを内開き仕様に仕立て、外部から部屋内１ａへの電磁波の侵入と部屋内１ａから外部への電磁波の漏洩とを確実に防止する。   In the above-described embodiment, the shield door 10 is attached to the electromagnetic shield room 1 so that the shield door 10 is opened to the side of the passage 9. However, the present invention is not limited to this, and in particular Although not shown, for example, as a modified example, the shield door 10 may be an inward opening specification that is opened by being pushed into the room 1a. In this case, contrary to the first embodiment, the fitting piece protrudes toward the inside of the room 1a, and a groove is provided on the outer periphery of the front door portion on the opening side of the shield door 10, and is fitted into this groove. By providing a receiving member capable of fitting the mating piece, the shield door is tailored to the inward opening specification, and the invasion of electromagnetic waves from the outside into the room 1a and the leakage of electromagnetic waves from the inside of the room 1a to the outside are surely prevented. .

次に、本発明の実施例２を図７に基づいて説明する。図７（ａ）は、本発明の実施例２における受部材の一部破断斜視図であり、図７（ｂ）は、シールドドアの閉塞過程に開口側の嵌合片に受部材が当接された状態を示す要部拡大断面図であり、図７（ｃ）は、シールドドアの閉塞完了時における嵌合片と受部材の状態を示す要部拡大断面図である。尚、以下の実施例２において前述の実施例１と同様の構造部分に関しては、同一の符号を付すことにより詳細な説明は省略することにする。   Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 7A is a partially broken perspective view of the receiving member according to the second embodiment of the present invention, and FIG. 7B shows that the receiving member comes into contact with the fitting piece on the opening side during the closing process of the shield door. FIG. 7C is a main part enlarged cross-sectional view showing the state of the fitting piece and the receiving member when the shield door is closed. In the following second embodiment, the same structural parts as those of the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted.

実施例２の受部材２１について説明する。受部材２１は導電性のある金属板が折り曲げて断面視略コ字状に成型され、図７（ｃ）に示すように、両側に弾性変形可能な溝条１３の内側面１３ａから離間して対向するバネ製銅合金から成る側片２２，２２と、この両側片２２，２２に連接した底片２３を有している。そして、互いに対向する側片２２，２２の内側面には、それぞれ導電性の金属板により折り曲げ形成された緩衝材である板バネ材２５，２５が、側片２２，２２の長手方向に沿って導電可能に設けられている。底片２３にはボルト貫通孔２３’が形成され、ボルト１９がボルト貫通孔２３’を介して溝条１３の底面１３ｂに形成されたボルト穴１３ｂ’に螺着され、受部材２１が固定されている。   The receiving member 21 of Example 2 will be described. The receiving member 21 is formed by bending a conductive metal plate into a substantially U shape in sectional view, and is separated from the inner side surface 13a of the groove 13 that is elastically deformable on both sides as shown in FIG. It has side pieces 22 and 22 made of opposing spring copper alloys, and a bottom piece 23 connected to both side pieces 22 and 22. Then, leaf spring materials 25 and 25, which are buffer materials formed by bending conductive metal plates, are provided along the longitudinal direction of the side pieces 22 and 22, respectively, on the inner side surfaces of the side pieces 22 and 22 facing each other. It is provided so as to be conductive. A bolt through hole 23 ′ is formed in the bottom piece 23, and the bolt 19 is screwed into a bolt hole 13 b ′ formed in the bottom surface 13 b of the groove 13 through the bolt through hole 23 ′, and the receiving member 21 is fixed. Yes.

さらに、板バネ材２５，２５は側片２２，２２に接続される取付片２５ｂ，２５ｂと、図７（ａ）に示すように、弾性変形可能に互いに向き合う断面視半円弧状に湾曲形成された弾性片２５ａ，２５ａとで構成されている。弾性片２５ａ，２５ａは側片２２，２２の長手方向に沿って多数に分割され、この分割された弾性片２５ａ，２５ａ毎に個々に弾性バネ力が付与され、弾性片２５ａ，２５ａの遊端側は取付片２５ｂ，２５ｂに対して可動であり、所要量の移動を取付片２５ｂ，２５ｂの下部折り返し部２５ｃで保持している。そしてシールドア閉塞時には、図７（ｃ）に示されるように、嵌合片８の外側面８ａ，８ａが弾性片２５ａ，２５ａに摺接され、側片２２，２２の弾性力により保持される。   Further, the leaf spring members 25, 25 are formed in a curved shape in a semicircular shape in cross-sectional view facing each other so as to be elastically deformable, as shown in FIG. 7 (a), with mounting pieces 25b, 25b connected to the side pieces 22, 22. And elastic pieces 25a, 25a. The elastic pieces 25a, 25a are divided into a large number along the longitudinal direction of the side pieces 22, 22, and an elastic spring force is applied to each of the divided elastic pieces 25a, 25a, and the free ends of the elastic pieces 25a, 25a are provided. The side is movable with respect to the mounting pieces 25b and 25b, and a required amount of movement is held by the lower folded portion 25c of the mounting pieces 25b and 25b. When the shield door is closed, the outer surfaces 8a and 8a of the fitting piece 8 are slidably contacted with the elastic pieces 25a and 25a and held by the elastic force of the side pieces 22 and 22, as shown in FIG.

以上の説明により実施例２では、両側片２２，２２の内側に弾性片２５ａ，２５ａが設けられたことで、シールドドア１０の開閉過程において、嵌合片８が弾性片２５ａ，２５ａに沿って円滑に案内されるとともに、一時的に受部材２１が嵌合片８と強く当接しても弾性片２５ａ，２５ａの遊端側が取付片２５ｂ，２５ｂに沿って移動できるので、衝撃が吸収でき、弾性片２５ａ，２５ａと嵌合片８の嵌合解除時に、弾性片２５ａ，２５ａが元の位置に復帰できる。   As described above, in the second embodiment, the elastic pieces 25a and 25a are provided inside the both side pieces 22 and 22, so that the fitting piece 8 extends along the elastic pieces 25a and 25a in the process of opening and closing the shield door 10. Since the free end side of the elastic pieces 25a, 25a can move along the mounting pieces 25b, 25b even if the receiving member 21 is temporarily in strong contact with the fitting piece 8, the impact can be absorbed. When the elastic pieces 25a and 25a and the fitting piece 8 are unfitted, the elastic pieces 25a and 25a can return to their original positions.

しかも、弾性片２５ａ，２５ａが多数に分割され、弾性バネ力が調整され均等に嵌合片８に加えられることから、受部材２１の両側片２２，２２に設けた多数の板バネ材２５，・・・間に嵌合片８の衝撃を吸収しながら嵌入できとともに、シールドドア１０と開口６側との導電性も確実に確保される。   Moreover, since the elastic pieces 25a and 25a are divided into a large number and the elastic spring force is adjusted and applied uniformly to the fitting piece 8, a large number of leaf spring members 25 provided on the both side pieces 22 and 22 of the receiving member 21 are provided. ... can be inserted while absorbing the impact of the fitting piece 8 between them, and the conductivity between the shield door 10 and the opening 6 side is also ensured.

以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれ、例えば上記実施例では、スポンジ状の芯材１７ａ，１８ａを導電性ファブリック１７ｂ，１８ｂで覆うことで、緩衝材１７，１８に導電性を備え側片１５Ａ，１５Ａへの伝導性を向上したことから好ましいが、本発明はこれに限定されるものではなく、導電性ファブリックを設けることなく、スポンジ状の芯材内に導電性に優れた金属粉を含有させることで、導電性と緩衝性を兼ね備えた緩衝材を構成しても良い。   Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. For example, in the above embodiment, the sponge-like core materials 17a and 18a are covered with the conductive fabrics 17b and 18b, so that the cushioning materials 17 and 18 have conductivity and the conductivity to the side pieces 15A and 15A is improved. However, the present invention is not limited to this, and by providing a metal powder having excellent conductivity in a sponge-like core material without providing a conductive fabric, conductivity and buffering properties can be obtained. You may comprise the buffer material which combines.

また、上記実施例では、側片１５Ａ，１５Ａを略中間部で屈曲して拡開部１５ａ，１５ａを設けているが、屈曲させずに案内片を別途、側片１５Ａ，１５Ａの先端側に設けるようにしても良い。   Further, in the above embodiment, the side pieces 15A, 15A are bent at substantially intermediate portions to provide the expanded portions 15a, 15a. However, the guide pieces are separately provided on the distal ends of the side pieces 15A, 15A without being bent. You may make it provide.

また、上記実施例では、シールドドア１０の部屋内１ａ側の表面板１２ａに導電材を適用したが、通路９側の外面板１２ｂに導電材を用いても良いことは言うまでもない。   Moreover, in the said Example, although the electrically conductive material was applied to the surface board 12a by the side of the room 1a of the shield door 10, it cannot be overemphasized that an electrically conductive material may be used for the outer surface board 12b by the side of the channel | path 9. FIG.

本発明の実施例１における電磁シールド部屋およびシールドドアの全体像を示す部分切り欠き斜視図である。It is a partial notch perspective view which shows the whole image of the electromagnetic shielding room and shield door in Example 1 of this invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図１のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. （ａ）は、受部材の一部破断斜視図であり、（ｂ）は、シールドドアの溝条内に設けられた受部材の断面図である。(A) is a partially broken perspective view of the receiving member, and (b) is a cross-sectional view of the receiving member provided in the groove of the shield door. 電磁シールド部屋の開口を閉塞するシールドドアが開放された状態を示す斜視図である。It is a perspective view which shows the state by which the shield door which obstruct | occludes opening of an electromagnetic shielding room was open | released. シールドドアで開口を閉塞する過程を示す要部拡大断面図で、（ａ）は閉塞前の状態、（ｂ）は開口側の嵌合片に受部材が当接された状態、（ｃ）はシールドドアの閉塞状態を示す。It is a principal part expanded sectional view which shows the process of obstruct | occluding opening by a shield door, (a) is the state before obstruction | occlusion, (b) is the state in which the receiving member was contact | abutted to the fitting piece of the opening side, (c) is The closed state of the shield door is shown. （ａ）は、本発明の実施例２における受部材の一部破断斜視図であり、（ｂ）は、シールドドアの閉塞過程に開口側の嵌合片に受部材が当接された状態を示す要部拡大断面図であり、（ｃ）は、シールドドアの閉塞完了時における嵌合片と受部材の状態を示す要部拡大断面図である。(A) is a partially broken perspective view of the receiving member in Embodiment 2 of the present invention, (b) is a state in which the receiving member is in contact with the fitting piece on the opening side during the closing process of the shield door. It is a principal part expanded sectional view to show, (c) is a principal part expanded sectional view which shows the state of a fitting piece and a receiving member at the time of completion of closure of a shield door.

符号の説明Explanation of symbols

１ 電磁シールド部屋
１ａ 部屋内（部屋）
２ 仕上内装材
３ 溶融亜鉛メッキしたシールド鋼板（導電材）
４ 電磁シールド部屋を支える建築構造体
５ シールド窓
６ 開口
７ 開口内周縁部
７ｂ 鈎受け凹部
８ 嵌合片（導電材）
８ａ 外側面
９ 通路
１０ シールドドア
１０ａ ノブ
１０ｂ ヒンジ
１０ｃ 鈎部
１１ ドア外周縁部
１２Ａ 後方扉部
１２ａ 表面板（導電材）
１２Ｂ 前方扉部
１２ｂ 外面板（導電材が好ましい）
１３ 溝条
１３ａ 内側面
１３ｂ 底面
１３ｂ’ ボルト穴
１５ 受部材（導電材からなる受部）
１５Ａ 弾性変形可能な側片
１５ａ 拡開部（受部の先側）
１５Ｂ 底片
１５ｂ ボルト貫通孔
１５ｃ 垂直部（受部の基側）
１７、１８ 緩衝材
１７ａ、１８ａ スポンジ状の芯材
１７ｂ、１８ｂ 導電性ファブリック（導電材）
１９、２０ ボルト
２１ 受部材（導電材からなる受部）
２２ 弾性変形可能な側片
２３ 底片
２３’ ボルト貫通孔
２５ 板バネ材（導電性を備えた緩衝材）
２５ａ 弾性片
２５ｂ 取付片
２５ｃ 折り返し部 1 Electromagnetic shield room 1a In the room (room)
2 Finishing interior material 3 Hot-dip galvanized shield steel plate (conductive material)
4 Building Structure Supporting Electromagnetic Shield Room 5 Shield Window 6 Opening 7 Opening Peripheral Edge 7b 鈎 Receiving Recess 8 Fitting Piece (Conductive Material)
8a outer side surface 9 passage 10 shield door 10a knob 10b hinge 10c collar 11 door outer peripheral edge 12A rear door 12a surface plate (conductive material)
12B Front door portion 12b External plate (conductive material is preferred)
13 Groove 13a Inner side surface 13b Bottom surface 13b 'Bolt hole 15 Receiving member (receiving portion made of conductive material)
15A Elastically deformable side piece 15a Expanding part (front side of receiving part)
15B Bottom piece 15b Bolt through hole 15c Vertical part (base side of receiving part)
17, 18 Buffer material 17a, 18a Sponge core material 17b, 18b Conductive fabric (conductive material)
19, 20 bolt 21 receiving member (receiving portion made of conductive material)
22 elastically deformable side piece 23 bottom piece 23 'bolt through hole 25 leaf spring material (buffer material with conductivity)
25a Elastic piece 25b Mounting piece 25c Folding part

Claims (4)

周囲を導電材により覆った部屋の一部に開口を設け、該開口を開閉可能な導電材を使用したドアを設け、該ドアにより前記開口を閉塞した状態で、ドアの外周縁部と前記開口の内周縁部とを導通させて、外部から部屋内への電磁波の進入も部屋内から外部への電磁波の漏洩も防止することができるようにした電磁シールド部屋におけるドア構造において、前記ドアによる前記開口の閉塞状態で、ドアの外周縁部と前記開口の内周縁部とを対向させるとともに、前記ドアの開放時に前記開口側に面する表面板が少なくとも導電材として構成され、該表面板の外周囲には連続した溝条が設けられ、該溝条の底面には、該溝条の両内側面と離間して対向する弾性変形可能な両側片を有する外側に開口した断面略コ字形の導電材からなる受部が設けられ、該受部における両側片の互いが対向する内側面には、弾性変形可能な導電材からなる緩衝材が設けられ、更に前記開口にはドア側に向けて前記部屋の導電材に導通する導電材からなる嵌合片が突設されており、該嵌合片の両側と前記緩衝材の各々とが当接していることを特徴とする電磁シールド部屋におけるドア構造。   An opening is provided in a part of a room whose periphery is covered with a conductive material, a door using a conductive material capable of opening and closing the opening is provided, and the opening is closed by the door, and the outer peripheral edge of the door and the opening In the door structure in the electromagnetic shield room, which can prevent the ingress of electromagnetic waves from the outside into the room and the leakage of electromagnetic waves from the inside of the room to the outside by conducting the inner peripheral edge of the door. In the closed state of the opening, the outer peripheral edge portion of the door and the inner peripheral edge portion of the opening are opposed to each other, and a surface plate facing the opening side when the door is opened is configured as at least a conductive material. A continuous groove is provided around the periphery, and the bottom surface of the groove has a substantially U-shaped cross section that is open to the outside and has elastically deformable side pieces that are spaced apart from and opposed to both inner surfaces of the groove. A receiving part made of material is provided. In addition, a buffer material made of an elastically deformable conductive material is provided on the inner side surfaces of the two side pieces of the receiving portion facing each other, and the conductive material that conducts to the conductive material in the room toward the door side is further provided in the opening. A door structure in an electromagnetic shield room, wherein a fitting piece made of a material is protruded, and both sides of the fitting piece are in contact with each of the cushioning materials. 前記緩衝材が、スポンジ状の芯材を導電性ファブリックで覆ったものである請求項１に記載の電磁シールド部屋におけるドア構造。   The door structure in an electromagnetic shield room according to claim 1, wherein the cushioning material is a sponge-like core material covered with a conductive fabric. 前記受部における両側片の略中央部に屈曲部を形成し、該屈曲部から先を外方に向けて互いが遠ざかる方向に拡開させ、前記屈曲部を挟んだ基側と先側に各々別の緩衝材を内設した請求項１または２に記載の電磁シールド部屋におけるドア構造。   A bent portion is formed at a substantially central portion of both side pieces in the receiving portion, the tip is extended outwardly from the bent portion in a direction away from each other, and the base side and the front side sandwiching the bent portion are respectively provided. The door structure in the electromagnetic shielding room according to claim 1 or 2, wherein another cushioning material is provided. 前記緩衝材が、長手方向に並ぶ多数の板バネ材である請求項１に記載の電磁シールド部屋におけるドア構造。   The door structure in an electromagnetic shield room according to claim 1, wherein the cushioning material is a large number of leaf spring materials arranged in the longitudinal direction.
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