JPH0632714Y2 - Double shield door - Google Patents
Double shield doorInfo
- Publication number
- JPH0632714Y2 JPH0632714Y2 JP1990034730U JP3473090U JPH0632714Y2 JP H0632714 Y2 JPH0632714 Y2 JP H0632714Y2 JP 1990034730 U JP1990034730 U JP 1990034730U JP 3473090 U JP3473090 U JP 3473090U JP H0632714 Y2 JPH0632714 Y2 JP H0632714Y2
- Authority
- JP
- Japan
- Prior art keywords
- door
- shield
- shield plate
- protrusion
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Building Environments (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案、例えばシールドルームのような電波遮蔽を行っ
た部屋に用いるシールド開閉扉に関し、特に開閉扉の外
側と内側を二重にシールドする開閉扉に関するものであ
る。[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a shield opening / closing door used in a radio wave shielded room such as a shielded room, and in particular, an opening / closing door that double shields the outside and inside of the opening / closing door. It's about the door.
（従来の技術とその問題点） 従来のこの種の開閉扉は、第２図から第４図に示すよう
に弾力性を有する板ばねとしてのフインガーコンタクト
（第５図参照）を利用して、扉を閉めた時、扉に設けた
電波遮蔽シールド板と扉枠に設けた電波遮蔽シールド板
とが電気的に接続されるものであった。第２図から第４
図はそれぞれ、端面すり合わせ型、ナイフエッジ型、及
び台形型と呼ばれている。(Prior Art and Its Problems) A conventional opening / closing door of this type utilizes a finger contact (see FIG. 5) as a leaf spring having elasticity as shown in FIGS. 2 to 4. When the door is closed, the radio wave shielding shield plate provided on the door and the radio wave shielding shield plate provided on the door frame are electrically connected. 2 to 4
The figures are referred to as end-face lapping type, knife-edge type, and trapezoidal type, respectively.
この従来例によれば、フインガーコンタクトが２個使用
されているので電気的接続は良好に達成されるが、高い
電波シールド性が要求されるようなシールドルームでは
従来の一重シールド型のものでは不十分であった。According to this conventional example, since two finger contacts are used, electrical connection can be achieved well, but in a shielded room where high radio wave shielding property is required, the conventional single shield type is not used. It was insufficient.
（問題点を解決するための手段） 本考案は、従来技術の問題点を解決することを目的と
し、突起部がほぼ台形に形成され、ほぼ台形に形成され
た前記突起部にほぼ整合する形状に凹部が形成され、前
記突起部の頂部のシールド板及び前記凹部の底部のシー
ルド板に分離絶縁部を設け、前記突起部の両斜面部のそ
れぞれか、または該両斜面部に対向する前記凹部のそれ
ぞれの面にフインガーコンタクトを設けて、扉が閉めら
れた時前記フインガーコンタクトのそれぞれが、扉また
は扉枠に設けられた外側シールド板と内側シールド板と
のそれぞれと電気的接触を行うことを特徴とする。(Means for Solving the Problems) The present invention aims to solve the problems of the prior art, and the protrusions are formed in a substantially trapezoidal shape, and the protrusions are formed in a substantially trapezoidal shape and are substantially aligned with each other. A recess is formed in the shield plate, and a separate insulating portion is provided on the shield plate on the top of the protrusion and the shield plate on the bottom of the recess, and both of the slopes of the protrusion or the recess facing the slopes. Of the finger contacts are provided on the respective surfaces of the doors, and when the door is closed, each of the finger contacts makes electrical contact with each of the outer shield plate and the inner shield plate provided on the door or the door frame. It is characterized by
（実施例） 以下、第１図を参照して本考案の一実施例につき詳細に
述べる。(Embodiment) Hereinafter, one embodiment of the present invention will be described in detail with reference to FIG.
第１図は、シールドルーム（図示しない）に用いられる
扉と扉枠の一部断面構造を示す。FIG. 1 shows a partial sectional structure of a door and a door frame used in a shielded room (not shown).
扉枠２にはその内側と外側にそれぞれ外側シールド板２
ａと内側シールド板２ｂが張られている。両シールド板
は台形型突起部の上辺の１カ所Ｐ点で完全に絶縁分離さ
れているので、外側シールド系と内側シールド系とが分
離され、従って二重のシールドが達成されシールド特性
が向上する。The door frame 2 has an outer shield plate 2 inside and outside thereof, respectively.
a and the inner shield plate 2b are stretched. Since both shield plates are completely insulated and separated at one point P on the upper side of the trapezoidal protrusion, the outer shield system and the inner shield system are separated, so that a double shield is achieved and the shield characteristics are improved. .
一方、扉１にも外側シールド板１ａと内側シールド板１
ｂとが張られており、前記台形型突起部の両辺に対向す
るそれぞれの辺には金属製フインガーコンタクト３ａ及
び３ｂが押え板４によって固定されている。従って、外
側シールド板１ａはフインガーコンタクト３ａを介して
外側シールド板２ａと接続され、また内側シールド板１
ｂはフインガーコンタクト３ｂを介して内側シールド板
２ｂと接続される。このように、台形型の構造とするこ
とにより、フインガーコンタクト板に対し圧縮方向で接
触抵抗を軽減し、すり合わせ方向で適度なワイピング効
果をもって接触面を清掃し良好な電気的接触を維持する
ことが可能となる。フインガーコンタクトは第５図に示
すように、フインガーコンタクトの取付部はほぼ９０°
に屈曲されているので、フインガーコンタクトに初期応
力を掛けない構造とすることが出来、それによってフイ
ンガーコンタクトの寿命を延ばすことが可能となる。On the other hand, the door 1 also has an outer shield plate 1a and an inner shield plate 1
b is stretched, and metal finger contacts 3a and 3b are fixed by pressing plates 4 to the respective sides facing the both sides of the trapezoidal protrusion. Therefore, the outer shield plate 1a is connected to the outer shield plate 2a through the finger contact 3a, and the inner shield plate 1a is also connected.
b is connected to the inner shield plate 2b through the finger contact 3b. In this way, the trapezoidal structure reduces contact resistance in the compression direction with respect to the finger contact plate, and cleans the contact surface with an appropriate wiping effect in the rubbing direction to maintain good electrical contact. Is possible. As shown in Fig. 5, the finger contact has a mounting portion of the finger contact of approximately 90 °.
Since the finger contact is bent, it is possible to provide a structure in which the initial stress is not applied to the finger contact, thereby extending the life of the finger contact.
（考案の効果） 本考案は、突起部を台形としてその上辺において外側お
よび内側シールド板を絶縁分離することによって、比較
的構造簡単な二重シールド開閉扉が達成され、それによ
って高いシールド特性が得られるという効果が達成され
る。(Effect of the Invention) The present invention achieves a double shield opening / closing door with a relatively simple structure by insulating the outer and inner shield plates at the upper side of the trapezoid by using a trapezoidal protrusion, thereby obtaining high shield characteristics. The effect of being performed is achieved.
第１図は、本考案の一実施例を示す断面図、第２図から
第４図まで従来のシールド開閉扉の構造を示す断面図、
及び第５図はフインガーコンタクトの形状を示す平面図
である。 １……扉、１ａ……外側シールド板、１ｂ……内側シー
ルド板、２……扉枠、２ａ……外側シールド板、２ｂ…
…内側シールド板、３ａ，３ｂ……フインガーコンタク
ト、４……押え板、Ｐ……分離絶縁部。FIG. 1 is a sectional view showing an embodiment of the present invention, and FIGS. 2 to 4 are sectional views showing the structure of a conventional shield opening / closing door.
5 and 5 are plan views showing the shape of the finger contact. 1 ... Door, 1a ... Outer shield plate, 1b ... Inner shield plate, 2 ... Door frame, 2a ... Outer shield plate, 2b ...
... Inner shield plate, 3a, 3b ... Finger contact, 4 ... Holding plate, P ... Separation insulation part.
Claims (1)
く電波遮蔽用シールドの施された扉枠とのどちらかに突
起部を設け、該突起部と整合する形状の凹部を他方に設
けて、前記扉を閉めることにより両者のシールドが電気
的に接続されるシールド開閉扉において、前記突起部が
ほぼ台形に形成され、ほぼ台形に形成された前記突起部
にほぼ整合する形状に前記凹部が形成され、前記突起部
の頂部のシールド板及び前記凹部の底部のシールド板に
分離絶縁部を設け、前記突起部の両斜面部のそれぞれ
か、または該両斜面部に対向する前記凹部のそれぞれの
面にフインガーコンタクトを設けて、前記扉が閉められ
た時前記フインガーコンタクトのそれぞれが、前記扉及
び扉枠に設けられた外側シールド板と内側シールド板と
のそれぞれと電気的接触を行うことを特徴とする二重シ
ールド開閉扉。1. A projection is provided on either a door provided with a shield for radio waves or a door frame similarly provided with a shield for radio waves, and a recess having a shape matching the projection is provided on the other. In the shield opening / closing door in which both shields are electrically connected by closing the door, the protrusion is formed in a substantially trapezoidal shape, and the recess is formed in a shape that substantially matches the protrusion formed in a substantially trapezoidal shape. A shield plate at the top of the protrusion and a shield plate at the bottom of the recess are provided with separate insulating portions, and both slopes of the protrusion or each of the recesses facing the slopes. Is provided with a finger contact, and when the door is closed, each of the finger contacts is electrically connected to each of the outer shield plate and the inner shield plate provided on the door and the door frame. Double shield door which is characterized in that the catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990034730U JPH0632714Y2 (en) | 1990-03-30 | 1990-03-30 | Double shield door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990034730U JPH0632714Y2 (en) | 1990-03-30 | 1990-03-30 | Double shield door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03126097U JPH03126097U (en) | 1991-12-19 |
| JPH0632714Y2 true JPH0632714Y2 (en) | 1994-08-24 |
Family
ID=31539460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990034730U Expired - Lifetime JPH0632714Y2 (en) | 1990-03-30 | 1990-03-30 | Double shield door |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632714Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4666502B2 (en) * | 2006-01-10 | 2011-04-06 | 株式会社岡村製作所 | Door structure in electromagnetic shield room |
| JP5234977B2 (en) * | 2009-03-13 | 2013-07-10 | 株式会社熊谷組 | Electromagnetic shield structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58140695U (en) * | 1982-03-16 | 1983-09-21 | ティーディーケイ株式会社 | Opening shield device |
| JPH071834Y2 (en) * | 1986-06-30 | 1995-01-18 | ティーディーケイ株式会社 | Contact structure of finger contact |
-
1990
- 1990-03-30 JP JP1990034730U patent/JPH0632714Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03126097U (en) | 1991-12-19 |
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