JPH04137097U - Electromagnetic shielding filter - Google Patents
Electromagnetic shielding filterInfo
- Publication number
- JPH04137097U JPH04137097U JP4447791U JP4447791U JPH04137097U JP H04137097 U JPH04137097 U JP H04137097U JP 4447791 U JP4447791 U JP 4447791U JP 4447791 U JP4447791 U JP 4447791U JP H04137097 U JPH04137097 U JP H04137097U
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- frame
- conductive
- groove
- electromagnetic
- 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.)
- Granted
Links
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011162 core material Substances 0.000 abstract description 10
- 238000003825 pressing Methods 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000009940 knitting Methods 0.000 abstract description 3
- 210000004209 hair Anatomy 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007747 plating Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
(57)【要約】
【目的】アース線を設けることなく、静電気による導電
性のシートの帯電を防止することができる電磁波シール
ド用フィルタを提供する。
【構成】電磁波シールド用フィルタ１０は、凹溝２２を
設けた額縁状の枠体２０と、枠体２０に取り付けられる
網状シート３０と、多数の短繊維を撚り合わせて成る導
電性紡績糸４４を丸編みして、芯材４２の表面を覆うこ
とにより構成され、凹溝２２にはめられて凹溝２２との
間で網状シート３０を挟持する押え部材４０と、を備え
る。
(57) [Summary] [Objective] To provide an electromagnetic wave shielding filter that can prevent a conductive sheet from being charged due to static electricity without providing a ground wire. [Structure] The electromagnetic wave shielding filter 10 includes a frame-like frame 20 provided with grooves 22, a mesh sheet 30 attached to the frame 20, and a conductive spun yarn 44 made by twisting a large number of short fibers. It is constructed by circular knitting to cover the surface of the core material 42, and includes a pressing member 40 that is fitted into the groove 22 and holds the net-like sheet 30 between the groove 22 and the groove 22.
Description
【０００１】0001
本考案は電子機器等の表示装置（例えばＣＲＴ）の表示画面の前面に取り付け られて、その画面から放出される電磁波を遮蔽する電磁波シールド用フィルタに 関する。 This invention is attached to the front of the display screen of a display device (e.g. CRT) of electronic equipment, etc. It is used as an electromagnetic shielding filter to block the electromagnetic waves emitted from the screen. related.
【０００２】0002
従来から、実開平２ー６５４００号公報に開示されているような電磁シールド 板が存在した。そのような電磁シールド板は、導電性ネットと合成樹脂からなる 板とを担持一体として形成するとともに、接地用端子をシールド板の端部に設け アース線を接続する。そして、その端子と導電性ネットとを電気的に接続するこ とにより導電性ネットを接地し、ＣＲＴ画面等から放出される電磁波によって導 電性ネットが帯電しないようにされていた。 Conventionally, electromagnetic shielding as disclosed in Utility Model Application Publication No. 2-65400 has been used. There was a board. Such electromagnetic shielding plates are made of conductive net and synthetic resin. A grounding terminal is provided at the end of the shield plate. Connect the ground wire. Then, electrically connect the terminal and the conductive net. By grounding the conductive net, the electromagnetic waves emitted from CRT screens etc. The electrically conductive net was prevented from becoming charged.
【０００３】0003
しかしながら、そのような従来の電磁シールド板は、導電性ネット、ひいては シールド板が静電気を帯びないようにするための手段として、アース線をシール ド板の端子に接続する方法を用いていたので、アース線を接続するための端子を 特に設ける必要があった。また、アース線を接続するため、電磁シールド板を配 設する場所も制約された。 However, such conventional electromagnetic shielding plate is a conductive net and even Seal the ground wire as a means to prevent the shield plate from being charged with static electricity. Since I was using the method of connecting the ground wire to the terminal on the ground board, I needed a terminal to connect the ground wire. It was especially necessary to provide this. In addition, an electromagnetic shield plate is installed to connect the ground wire. There were also restrictions on where they could be set up.
【０００４】 さらに、電磁シールド板にアース線が接続されていると誤って引っ張る虞もあ り、誤って引っ張った場合には、他の配線やＯＡ機器等にダメージを与えること にもなった。 そこで、そのようなアース線を設けることなく、静電気による導電性のシート の帯電を防止することができる電磁波シールド用フィルタの提供を目的として本 考案を案出した。0004 Furthermore, if the ground wire is connected to the electromagnetic shield plate, there is a risk of it being accidentally pulled. If you pull it by mistake, it may cause damage to other wiring or OA equipment, etc. It also became. Therefore, without providing such a ground wire, a conductive sheet using static electricity was used. This book is intended to provide an electromagnetic shielding filter that can prevent electrostatic build-up. devised an idea.
【０００５】[0005]
前記課題を解決するための本考案の構成は、 電磁波を放出する表示装置の画面の前面に配設され、前記電磁波を遮蔽する電 磁波シールド用フィルタであって、 凹部を設けた環状の枠体と、 導電性材料にて網状に形成された電磁波シールド用のシートと、 周囲に導電性短繊維を有し、前記枠体の凹部にはめられて該凹部との間で前記 シートを挟持する押え部材と、 を備えたことを特徴とする電磁波シールド用フィルタである。 The structure of the present invention for solving the above problems is as follows: An electric wire installed in front of the screen of a display device that emits electromagnetic waves to shield the electromagnetic waves. A filter for magnetic shielding, an annular frame with a recess; An electromagnetic shielding sheet made of conductive material in a net shape, It has conductive short fibers around its periphery, and is fitted into the recess of the frame body so that the a presser member that holds the sheet; This is an electromagnetic wave shielding filter characterized by comprising:
【０００６】[0006]
そのような本考案に係る電磁波シールド用フィルタにあっては、押え部材が枠 体の凹部との間で電磁波シールド用のシートを挟持することにより、凹部内にお いてシートは押え部部材の周囲の導電性短繊維と電気的に接続される。従って、 ＣＲＴの画面等から放出された電磁波により、電磁波シールド用のシートに生じ た電荷は、シートと電気的に接続された導電性短繊維を介して空気中に放電され る。それ故、本考案を用いれば、アース線を設けることなく、静電気による導電 性のシートの帯電を防止することができる。 In such an electromagnetic wave shielding filter according to the present invention, the holding member is attached to the frame. By sandwiching an electromagnetic shielding sheet between the body and the recess, The sheet is electrically connected to the conductive short fibers around the presser member. Therefore, Electromagnetic waves emitted from CRT screens, etc. can cause damage to electromagnetic shielding sheets. The electric charge is discharged into the air through conductive short fibers that are electrically connected to the sheet. Ru. Therefore, if the present invention is used, conduction due to static electricity can be achieved without providing a ground wire. It is possible to prevent the static sheet from being charged.
【０００７】 また、本考案にあっては、電磁波シールド用のシートを置いた枠体の凹部へ押 え部材をはめるという簡単な操作により、枠体に網状のシートを取り付け電磁波 シールド用フィルタを完成させることができる。そのようにして完成された電磁 波シールド用フィルタは、押え部材を凹部から取り出すだけで、容易に枠体と網 状のシートとを分離することができる。従って、本考案にかかる電磁波シールド 用フィルタは、枠体とシートとの取付・取り外しが容易で、網状のシートの補修 、交換、または洗浄等を簡単に行うことが可能である。[0007] In addition, in the present invention, the sheet for electromagnetic shielding is pressed into the recessed part of the frame body where the sheet is placed. A mesh sheet is attached to the frame by the simple operation of fitting the frame member to prevent electromagnetic waves. A shield filter can be completed. The electromagnetic system completed in this way Wave shield filters can be easily attached to the frame and mesh by simply removing the holding member from the recess. The sheets can be separated. Therefore, the electromagnetic shield according to the present invention The filter is easy to attach and remove between the frame and the sheet, making it ideal for repairing net-like sheets. , replacement, or cleaning can be easily performed.
【０００８】[0008]
以下、本考案の一実施例を図面に基づき詳細に説明する。但し、本考案は、以 下の実施例に何ら限定されるものではなく、本考案の要旨を逸脱しない範囲にお いて、当業者が想到し得る実施例を全て含む。 Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. However, this invention The invention is not limited in any way to the examples below, and may be applied without departing from the gist of the invention. It includes all embodiments that a person skilled in the art could conceive of.
【０００９】 ＣＲＴ画面１の前面に配設されて画面１から放出される電磁波を遮断する、本 実施例の電磁波シールド用フィルタ１０は、図１ないし図３に示すように、枠体 ２０、電磁波を遮断するための網状シート３０、および押え部材４０を備える。 枠体２０は、薄板額縁状を成し、その裏面には枠体２０に沿って環状に連なる 凹溝２２が形成されている。また、枠体２０の上部両端近傍には、ＣＲＴ装置２ に電磁波シールド用フィルタ１０を取り付けるための取付部材２４が設けられて いる。[0009] A book placed in front of the CRT screen 1 to block electromagnetic waves emitted from the screen 1. The electromagnetic shielding filter 10 of the embodiment has a frame body as shown in FIGS. 1 to 3. 20, a mesh sheet 30 for blocking electromagnetic waves, and a pressing member 40. The frame body 20 has a thin plate frame shape, and on the back side thereof, there is a ring extending in a ring shape along the frame body 20. A groove 22 is formed. Further, near both ends of the upper part of the frame 20, a CRT device 2 is provided. A mounting member 24 for mounting the electromagnetic shielding filter 10 is provided. There is.
【００１０】 網状シート３０は、ポリエステルを網状に織ったものに銅メッキが施され導電 性が付与されている。さらにクロムメッキされて、光の反射を抑え、ＣＲＴ画面 １を見る者の眼への刺激を減らすように構成されている。 押え部材４０は、図４に示すように、弾性に富む合成ゴムを断面円形状に成形 した芯材４２の表面を、多数の短繊維を撚り合わせて成る紡績糸に導電性付与処 理（銅メッキ後にニッケルメッキ処理）を施した導電性紡績糸４４で丸編みして 覆うことにより構成されている。この導電性紡績糸４４は毛羽立っており、その 表面からは多数の導電性短繊維の細毛４６が外方へ向かって延び出している。こ の導電性紡績糸４４の表面抵抗は１０Ω／ｃｍ2 以下であり、好ましくは１０-1 Ω／ｃｍ2 以下である。[0010] The mesh sheet 30 is made of polyester woven into a mesh shape and is plated with copper to provide conductivity. Furthermore, the CRT screen 1 is plated with chrome to suppress reflection of light and reduce irritation to the eyes of the person viewing the CRT screen 1. As shown in FIG. 4, the presser member 40 is made of a core material 42 made of highly elastic synthetic rubber molded into a circular cross section, and the surface of the core material 42 is treated to give conductivity (copper plating) to a spun yarn made by twisting a large number of short fibers. It is constructed by circularly knitting and covering with conductive spun yarn 44 which is later subjected to nickel plating treatment. This conductive spun yarn 44 is fluffy, and a large number of conductive short fibers 46 extend outward from its surface. The surface resistance of the conductive spun yarn 44 is 10 Ω/cm 2 or less, preferably 10 -1 Ω/cm 2 or less.
【００１１】 そのような電磁波シールド用フィルタ１０にあって、枠体２０へ網状シート３ ０を張り付ける手順は次のとおりである。すなわち、枠体２０の凹溝２２の上に 網状シート３０を置き、その上から押え部材４０を凹溝２２内へ圧入する。する と、網状シート３０は、押え部材４０と凹溝２２とで挟持され、電磁波シールド 用フィルタ１０が完成する。その際、凹溝２２内で網状シート３０は、導電性紡 績糸４４、及び細毛４６と接触する。[0011] In such an electromagnetic shielding filter 10, the mesh sheet 3 is attached to the frame 20. The procedure for pasting 0 is as follows. That is, on the groove 22 of the frame 20 The net-like sheet 30 is placed, and the pressing member 40 is press-fitted into the groove 22 from above. do The mesh sheet 30 is held between the pressing member 40 and the groove 22, and is shielded from electromagnetic waves. The filter 10 is completed. At that time, the mesh sheet 30 is made of conductive material within the groove 22. It comes into contact with the yarn 44 and the fine hair 46.
【００１２】 完成された電磁波シールド用フィルタ１０は、取付部材２４を用いてＣＲＴ画 面１の前面に配設する。そのようにして配設された電磁波シールド用フィルタ１ ０にあっては、網状シート３０がＣＲＴ画面１から放出される電磁波を遮る。 電磁波を遮ることにより、網状シート３０に生じた電荷は（導電性紡績糸４４ を介して又は直接に）細毛４６の先端から空中に放電されるので、網状シート３ ０は静電気を帯び難い。0012 The completed electromagnetic shielding filter 10 can be attached to a CRT screen using the mounting member 24. Arranged in front of surface 1. Electromagnetic shielding filter 1 arranged in this way 0, the mesh sheet 30 blocks electromagnetic waves emitted from the CRT screen 1. By blocking electromagnetic waves, the electric charge generated in the mesh sheet 30 (conductive spun yarn 44 The net-like sheet 3 0 is less likely to be charged with static electricity.
【００１３】 また、完成された電磁波シールド用フィルタ１０は、網状シート３０自身を引 っ張るなどの操作により、押え部材４０を凹溝２２から取り出すだけで、枠体２ ０から網状シート３０を容易に取り外すことが出来る。従って、例えば、破れた 網状シート３０をスペアの網状シートと交換したり、汚れた網状シート３０を取 り外して洗浄したりするメインテナンス作業等を容易に行うことが可能である。[0013] Moreover, the completed electromagnetic wave shielding filter 10 has a structure in which the mesh sheet 30 itself is pulled. By simply removing the presser member 40 from the groove 22 by tightening it, the frame 2 can be removed. The net-like sheet 30 can be easily removed from 0. Therefore, for example, torn Replace the mesh sheet 30 with a spare mesh sheet or remove the dirty mesh sheet 30. Maintenance work such as removing and cleaning can be easily performed.
【００１４】 本実施例では、網状シート３０としてポリエステル織物に銅メッキを施したも のを用いたが、銅メッキに代えてニッケルメッキを用いる等、導電性を有する網 状のシート材であれば何でも良い。例えば、銅線を網状に形成してシートとした ものを用いても良い。また、導電性の網状体を透明で可撓性および導電性を有す るフィルムで覆い、網状シートを構成しても良い。さらに、導電性網体を透明な 板材で覆い、そのような板材の端から網体をはみ出させて網状シートを構成し、 その板材からはみ出した網体を押え部材と凹部とで挟持するようにしても良い。[0014] In this embodiment, the mesh sheet 30 is a polyester fabric plated with copper. However, a conductive mesh such as nickel plating is used instead of copper plating. Any sheet material with a shape may be used. For example, copper wire is formed into a net shape and made into a sheet. You can also use something. In addition, the conductive network is transparent, flexible, and conductive. It may be covered with a film to form a reticulated sheet. Furthermore, the conductive net is made of transparent material. A net-like sheet is constructed by covering the sheet with a board and making the net protrude from the edge of such board, The net protruding from the plate may be held between the pressing member and the recess.
【００１５】 また、本実施例で網状シート３０はクロムメッキされ、光が反射しないように 加工されているが、クロムメッキに代えて網状シート３０をカーボン塗料で黒く 着色するなど、光を反射させないためのあらゆる手段を用いることが出来る。 なお、本実施例において、枠体２０に沿って環状に連なる形状とされている凹 溝２２は、環状でなくても良い。例えば線状の条溝として、枠体の左右の各々に 沿って二条設けるなど、複数条の凹溝を設けたものでも良い。また、凹部は、溝 に限らず穴などであっても良い。例えば丸い穴を、枠体に沿って複数設けても良 い。[0015] In addition, in this embodiment, the mesh sheet 30 is chrome plated to prevent light from reflecting. It has been processed, but instead of chrome plating, the mesh sheet 30 is blackened with carbon paint. Any means can be used to prevent light from being reflected, such as coloring. Note that in this embodiment, the recesses are shaped like a ring and extend along the frame 20. The groove 22 does not have to be annular. For example, as linear grooves, A plurality of concave grooves may be provided, such as two grooves along the line. In addition, the recess is a groove. It is not limited to , but may also be a hole or the like. For example, multiple round holes may be provided along the frame. stomach.
【００１６】 本実施例において断面円形状に成形されていた押え部材は、前述のような種々 の形状の凹部に対応した形状として形成される。すなわち、凹部が凹溝または条 溝として形成されている場合には、押え部材は細長形状とされる。そのような凹 部にはめることが出来れば、押え部材は角柱状であっても、その他の形状であっ ても良い。また、凹部が環状の凹溝２２である場合には、細長い押え部材が環状 に連なった形状のものを用いても良い。さらに、凹部が複数の丸穴形状とされて いる場合には、その丸穴の数に対応した数の球状の押え部材を用いれば良い。[0016] The presser member, which was formed into a circular cross section in this example, can be used in various ways as described above. It is formed in a shape corresponding to the recess in the shape of. In other words, the recess is a groove or a strip. When formed as a groove, the holding member has an elongated shape. such a concavity The presser member may have a prismatic shape or any other shape as long as it can be fitted into the section. It's okay. In addition, when the recess is an annular groove 22, the elongated presser member is annular. You may also use one with a continuous shape. Furthermore, the recess is shaped like multiple round holes. If there are, the number of spherical holding members corresponding to the number of round holes may be used.
【００１７】 本実施例において芯材４２は合成ゴムから成るが、合成ゴムに限らず、凹部に 圧入して網状シートを挟持するのに適当な弾性を有する全ての素材を芯材として 用いることが出来る。また、押え部材４０の凹部への取付手段としては、圧入に 限らず、嵌合その他、凹部との間で網状シートを挟持することが出来、網状シー トと枠体との取付・取り外しが容易な手段であれば、どのような手段を用いても 良い。[0017] In this embodiment, the core material 42 is made of synthetic rubber, but is not limited to synthetic rubber. All materials with appropriate elasticity for press-fitting and holding the mesh sheet can be used as the core material. It can be used. In addition, as a means for attaching the presser member 40 to the recess, press-fitting may be used. In addition to fitting, the mesh sheet can be held between the recess and the mesh sheet. Any method can be used as long as it is easy to attach and detach the frame and the frame. good.
【００１８】 また、本実施例における導電性紡績糸４４および細毛４６に代えて、毛糸状に 構成されたもの、綿毛状のもの、羽毛状のもの、ブラシ状のもの等、押え部材の 周囲に配設することが可能であって柔軟性を有し複数の突状先端を持ち、その先 端部から静電気を空中に放電可能な全てのものを用いることが出来る。[0018] In addition, instead of the conductive spun yarn 44 and the fine hair 46 in this embodiment, yarn-like Holding members such as structured, fluff-like, feather-like, brush-like, etc. It is flexible and has multiple protruding tips that can be placed around the Anything that can discharge static electricity into the air from its ends can be used.
【００１９】 さらに、本実施例において、丸編みにして芯材の周囲を覆う導電性紡績糸４４ は多数の短繊維を撚り合わせて成るが、それに代えて、一般の糸に、短繊維や綿 毛等の細毛を静電植毛の方法によって付着させ細毛付の糸とし導電性を付与する 処理を施して、そのような細毛付導電性糸を丸編みにして芯材の周囲を覆う構成 としても良い。[0019] Furthermore, in this embodiment, the conductive spun yarn 44 is circularly knitted and covers the core material. is made by twisting many short fibers together, but instead of that, short fibers and cotton are used as ordinary threads. Fine hair such as hair is attached using the electrostatic flocking method to create a thread with fine hair and impart conductivity. A structure in which the conductive yarn with fine hairs is circularly knitted and covered around the core material after being treated. It's good as well.
【００２０】 さらにまた、本実施例の導電性紡績糸４４で丸編みすることにより芯材４２の 表面を覆って構成された押え部材４０に代え、芯材４２の表面に直接、静電植毛 等の方法により短繊維や綿毛等の細毛を付着させ、そのような細毛付芯材に導電 性を付与する処理を施して押え部材を構成しても良い。[0020] Furthermore, by circular knitting with the conductive spun yarn 44 of this embodiment, the core material 42 can be Instead of the pressing member 40 configured to cover the surface, electrostatic flocking is applied directly to the surface of the core material 42. By attaching fine hairs such as short fibers and fluff using methods such as The pressing member may be constructed by performing a treatment to impart properties.
【図１】本実施例の要部斜視説明図である。FIG. 1 is a perspective explanatory view of essential parts of the present embodiment.
【図２】本実施例をＣＲＴ装置２に取り付けた場合の全
体斜視説明図である。FIG. 2 is an overall perspective explanatory view when this embodiment is attached to a CRT device 2. FIG.
【図３】図１に示す本実施例のＡ−Ａ要部断面図であ
る。FIG. 3 is a cross-sectional view of the main part of the embodiment shown in FIG. 1, taken along line AA.
【図４】本実施例に用いる押え部材４０の斜視要部説明
図である。FIG. 4 is a perspective view illustrating a main part of a presser member 40 used in this embodiment.
１…ＣＲＴ画面、 ２…ＣＲＴ装置、１０…電磁
波シールド用フィルタ、２０…枠体、２２…凹溝、
３０…網状シート、 ４０…押え部材、４２
…芯材、 ４４…導電性紡績糸、 ４６…細
毛、DESCRIPTION OF SYMBOLS 1...CRT screen, 2...CRT device, 10...electromagnetic shielding filter, 20...frame body, 22...concave groove,
30... Net-like sheet, 40... Pressing member, 42
... Core material, 44 ... Conductive spun yarn, 46 ... Fine hair,
Claims (1)
に配設され、前記電磁波を遮蔽する電磁波シールド用フ
ィルタであって、凹部を設けた環状の枠体と、導電性材
料にて網状に形成された電磁波シールド用のシートと、
周囲に導電性短繊維を有し、前記枠体の凹部にはめられ
て該凹部との間で前記シートを挟持する押え部材と、を
備えたことを特徴とする電磁波シールド用フィルタ。1. An electromagnetic wave shielding filter that is disposed in front of a screen of a display device that emits electromagnetic waves and shields the electromagnetic waves, the filter comprising an annular frame provided with a concave portion and a net-like structure made of a conductive material. The formed electromagnetic shielding sheet,
1. A filter for electromagnetic shielding, comprising: a holding member having conductive short fibers around the frame, and being fitted into a recess of the frame body and sandwiching the sheet between the recess and the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4447791U JP2501379Y2 (en) | 1991-06-13 | 1991-06-13 | Electromagnetic shield filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4447791U JP2501379Y2 (en) | 1991-06-13 | 1991-06-13 | Electromagnetic shield filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04137097U true JPH04137097U (en) | 1992-12-21 |
| JP2501379Y2 JP2501379Y2 (en) | 1996-06-19 |
Family
ID=31924604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4447791U Expired - Lifetime JP2501379Y2 (en) | 1991-06-13 | 1991-06-13 | Electromagnetic shield filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2501379Y2 (en) |
-
1991
- 1991-06-13 JP JP4447791U patent/JP2501379Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2501379Y2 (en) | 1996-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170265763A1 (en) | Textile electrode device for acquisition of electrophysiological signals from the skin and manufacturing process thereof | |
| FI77949C (en) | Radiation and static electricity removal device. | |
| CA1281767C (en) | Conductive wrist band | |
| AU663602B2 (en) | Electrode system with disposable gel | |
| US5073984A (en) | Simple protective clothing for shielding from electromagnetic wave | |
| US4819085A (en) | Screen for cathode ray tubes | |
| CA1306129C (en) | Removable conforming video display terminal filter | |
| EP3574824A1 (en) | Stretchable raised fiber electrode and manufacturing method therefor | |
| JPH04137097U (en) | Electromagnetic shielding filter | |
| US4661856A (en) | Cathode ray tube glare filter, radiation and static electricity suppression device | |
| EP0072782A2 (en) | Method and apparatus for eliminating aerosol particles in display screen environments | |
| US20010041488A1 (en) | Ionizing wiper | |
| JP2002193389A (en) | Flexible container | |
| JPS6251140A (en) | Display filter | |
| JPH088910B2 (en) | Biomedical electrode | |
| JP2540357Y2 (en) | Static eliminator | |
| JPH0330808A (en) | Air purifying filter | |
| CN117502749B (en) | Antistatic composite knitted fabric | |
| JP4246834B2 (en) | Electromagnetic wave shielding panel with lead electrode | |
| KR920002399Y1 (en) | Electrode removing electrostatic charges | |
| JPS60166920A (en) | Spectacles for shielding electromagnetic wave | |
| JPH0775951B2 (en) | Antistatic mat | |
| JPH02168595A (en) | Device for discharge of static electricity | |
| JP2005071969A (en) | Material for self-discharge type static electricity eliminating device, and manufacturing method of the same | |
| KR20210142984A (en) | Mask having a magnet filter and the manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |