JP2002246784A - Frame made of rubber and radio wave absorbing structure - Google Patents

Frame made of rubber and radio wave absorbing structure

Info

Publication number
JP2002246784A
JP2002246784A JP2001042841A JP2001042841A JP2002246784A JP 2002246784 A JP2002246784 A JP 2002246784A JP 2001042841 A JP2001042841 A JP 2001042841A JP 2001042841 A JP2001042841 A JP 2001042841A JP 2002246784 A JP2002246784 A JP 2002246784A
Authority
JP
Japan
Prior art keywords
radio wave
wave absorbing
rubber
mounting
frame
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
Application number
JP2001042841A
Other languages
Japanese (ja)
Other versions
JP4403444B2 (en
Inventor
Yoshika Takechi
義加 武智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takechi Kogyo Gomu Co Ltd
Original Assignee
Takechi Kogyo Gomu Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Takechi Kogyo Gomu Co Ltd filed Critical Takechi Kogyo Gomu Co Ltd
Priority to JP2001042841A priority Critical patent/JP4403444B2/en
Publication of JP2002246784A publication Critical patent/JP2002246784A/en
Application granted granted Critical
Publication of JP4403444B2 publication Critical patent/JP4403444B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a frame made of rubber, with which a flat radio wave absorbing plate can be made into desired shape and attached easily and rapidly due to a simple structure. SOLUTION: A frame 3 is made of rubber, having mounting grooves 5, 6 for sandwiching/holding the peripheral edge of a radio wave absorbing plate 1, and the grooves 5, 6 which continue like a loop. In the frame 3, a powdery soft magnetic material is added to the rubber other than a carbon.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、電波の吸収機能を
有する電波吸収板を有料道路の料金所等の構造物の天井
などに装着するためのゴム製の枠体に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber frame for mounting a radio wave absorbing plate having a radio wave absorbing function on a ceiling of a structure such as a tollgate on a toll road.

【0002】[0002]

【従来の技術と発明が解決しようとする課題】たとえ
ば、有料道路においては、料金所と送受信機との間で頻
繁に無線通信を行うことから、電波が空中を飛散してい
るので、種々の通信の誤動作を招く原因となる。そこ
で、料金所の構造物の天井などには、電波を吸収するこ
とのできる電波吸収板を装着することがなされている。
電波を吸収する方法としては、枠体に電波吸収板を嵌め
込んで、枠体と電波吸収板とを前記構造物に取り付け
る。しかし、こうした方法では、枠体における電波吸収
がなされていないので、電波が吸収しきれない。かかる
問題は、他の構造物に電波吸収板を取り付ける際にも同
様に生じる。そこで、本発明においては、電波を吸収し
得るゴム製の枠体を提供することを目的とする。
2. Description of the Related Art For example, on a toll road, radio communication is frequently performed between a toll gate and a transceiver, and radio waves are scattered in the air. This may cause a communication malfunction. Therefore, a radio wave absorbing plate capable of absorbing radio waves is mounted on a ceiling of a tollgate structure or the like.
As a method of absorbing radio waves, a radio wave absorbing plate is fitted into a frame, and the frame and the radio wave absorbing plate are attached to the structure. However, in such a method, radio waves are not absorbed by the frame body, so that the radio waves cannot be completely absorbed. Such a problem similarly occurs when the radio wave absorbing plate is attached to another structure. Therefore, an object of the present invention is to provide a rubber frame that can absorb radio waves.

【0003】[0003]

【課題を解決するための手段】前記目的を達成するため
に、本発明は、電波吸収板の周囲の端縁を挟持する装着
溝を有し、かつ、前記装着溝がループ状に連なったゴム
製の枠体であって、カーボン以外の軟磁性体の粉末がゴ
ムに添加されていることを特徴とする。
In order to achieve the above-mentioned object, the present invention provides a rubber having a mounting groove for sandwiching an edge around a radio wave absorbing plate, and the mounting groove is connected in a loop. Characterized in that powder of a soft magnetic substance other than carbon is added to rubber.

【0004】本発明において、前記カーボン以外の軟磁
性体の粉末は1重量%以上添加されているのが好まし
い。また、本発明において、電波吸収板としては、ゴム
などの主材にフェライトを添加したゴム板や、このゴム
板に金属の反射層および/または樹脂板を積層した積層
板などを採用することができる。
In the present invention, it is preferable that the soft magnetic powder other than carbon is added in an amount of 1% by weight or more. In the present invention, as the radio wave absorbing plate, a rubber plate obtained by adding ferrite to a main material such as rubber, a laminated plate obtained by laminating a metal reflective layer and / or a resin plate on the rubber plate may be used. it can.

【0005】[0005]

【発明の実施の形態】以下、本発明の好ましい実施形態
について、図面を参照しながら説明する。図1は第1実
施形態の底面図を示す。この実施形態では、2つの電波
吸収板1,1を並設状態で構造物の天井などの被取付面
2に取り付ける場合を例示してある。電波吸収板1,1
は、平面視略矩形状の偏平なものであり、軟磁性体、例
えば、フェライト、純鉄またはニッケルの粉末を添加し
たゴムを成形加工して形成されており、必要に応じてカ
ーボンを加える。この電波吸収板1,1は、入射電波の
エネルギを熱エネルギに変換することで、該入射電波の
強度を損耗させる機能を有している。但し、この電波吸
収板1は、弾性体であるゴムによって偏平形状に形成さ
れているので、剛性が比較的低いものであるが、アクリ
ルなどの樹脂板や反射部材などを積層してもよい。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a bottom view of the first embodiment. This embodiment exemplifies a case in which two radio wave absorbing plates 1 and 1 are mounted side by side on a mounting surface 2 such as a ceiling of a structure. Radio wave absorption plate 1, 1
Is a flat plate having a substantially rectangular shape in a plan view, and is formed by molding a soft magnetic material, for example, rubber to which powder of ferrite, pure iron or nickel is added, and carbon is added as necessary. The radio wave absorbing plates 1 and 1 have a function of converting the energy of the incident radio wave into heat energy, thereby reducing the intensity of the incident radio wave. However, since the radio wave absorbing plate 1 has a relatively low rigidity because it is formed in a flat shape by rubber as an elastic body, a resin plate of acrylic or the like, a reflecting member, or the like may be laminated.

【0006】電波吸収板1,1の端縁部には、その全周
にわたり取り囲む配置でゴム製の支持枠体3が前記端縁
部を挟持する状態に取り付けられている。支持枠体3
は、並設配置の2つの電波吸収板1,1の端縁部の全周
に取り付けることのできる「日」字形の平面形状を有し
ている。
A rubber support frame 3 is attached to the edges of the radio wave absorbing plates 1 and 1 so as to surround the entire periphery thereof so as to sandwich the edges. Support frame 3
Has a "day" -shaped planar shape that can be attached to the entire periphery of the edge portions of the two radio wave absorbing plates 1 and 1 arranged side by side.

【0007】図2(a),(b)は図1のA−A線切断
拡大断面図およびB−B線切断拡大断面図を示す。外周
部の支持枠体3には、図2(a)に示すように、電波吸
収板1が存在する内側にのみ電波吸収板1を挟持するた
めの支持片部3a,3bが突出形成されている。支持片
部3a,3b間には、電波吸収板1の端縁部が入り込む
装着溝5が形成されている。中央部の支持枠体3には、
図2(b)に示すように電波吸収板1,1が存在する両
側に電波吸収板1,1をそれぞれ挟持するための支持片
部3c,3dが突出形成されている。支持片部3c,3
d間には、前記端縁部が入り込む装着溝6が形成されて
いる。前記装着溝5,6は、ループ状に連なって形成さ
れている。
FIGS. 2A and 2B are an enlarged sectional view taken along line AA of FIG. 1 and an enlarged sectional view taken along line BB of FIG. As shown in FIG. 2A, support pieces 3a and 3b for sandwiching the radio wave absorbing plate 1 are formed protruding only on the inner side where the radio wave absorbing plate 1 exists, as shown in FIG. I have. A mounting groove 5 into which the edge of the radio wave absorbing plate 1 enters is formed between the support pieces 3a and 3b. In the support frame 3 at the center,
As shown in FIG. 2B, on both sides where the radio wave absorbing plates 1 and 1 are present, support pieces 3c and 3d for sandwiching the radio wave absorbing plates 1 and 1 are formed to protrude. Supporting pieces 3c, 3
A mounting groove 6 into which the edge portion enters is formed between d. The mounting grooves 5 and 6 are formed continuously in a loop.

【0008】図3は支持枠部3の一部の破断斜視図を示
す。前記支持枠体3にはアンカー部9が一体形成されて
いる。このアンカー部9は、支持枠体3に取り付けられ
る電波吸収板1,1に対し直交方向に突出する本体部9
aと、この本体部9aの両側面から本体部9aの反突出
方向へ向け延出する複数のリップ9bとを有している。
FIG. 3 is a cutaway perspective view of a part of the support frame 3. An anchor 9 is integrally formed with the support frame 3. The anchor portion 9 has a main body portion 9 that projects in a direction orthogonal to the radio wave absorbing plates 1 and 1 attached to the support frame 3.
a, and a plurality of lips 9b extending from both side surfaces of the main body 9a in a direction opposite to the direction in which the main body 9a protrudes.

【0009】また、図2の被取付面2には取付部材10
がねじ11によって固着されている。取付部材10は、
保持溝部10aを有すると共に断面が略逆U字状の形状
を有している。保持溝部10aの溝幅は、アンカー部9
の両側のリップ9b,9bの先端間の距離よりも僅かに
小さく設定されている。したがって、アンカー部9は、
各リップ9bが内方に弾性変形されながら保持溝部10
a内に押し込まれ、支持枠体3の支持片部3a,3b,
3c,3dによって電波吸収板1,1を挟持した状態で
取付部材10の当接片部10bに押し付けられる。この
ように、各くさび片9bの先端部分は弾性変形により保
持溝部10aの内面に圧接し、これによってアンカー部
9の保持溝部10aからの抜け止めがなされる。
A mounting member 10 is provided on the mounting surface 2 shown in FIG.
Are fixed by screws 11. The mounting member 10
It has a holding groove 10a and has a substantially inverted U-shaped cross section. The groove width of the holding groove 10a is
Are set slightly smaller than the distance between the tips of the lips 9b, 9b on both sides of the lip 9b. Therefore, the anchor portion 9
While each lip 9b is elastically deformed inward, the holding groove 10
a, and the support pieces 3a, 3b,
The radio wave absorbing plates 1 and 1 are sandwiched by 3c and 3d and pressed against the contact piece 10b of the mounting member 10. As described above, the distal end portion of each wedge piece 9b is pressed against the inner surface of the holding groove 10a by elastic deformation, whereby the anchor 9 is prevented from falling out of the holding groove 10a.

【0010】前記取付構造では、電波吸収板1,1の端
縁部に、支持枠体3を取り付けたのち、前記アンカー部
9を前記保持溝部10a内に押し込むだけの簡単な作業
により、2つの電波吸収板1,1を被取付面2に対し概
ね平行に対面する位置決め状態で、被取付面2を覆うよ
うに極めて迅速に取り付けることができる。また、電波
吸収板1,1自体は、樹脂板や電波反射板を備えないこ
とから剛性が低いが、この電波吸収板1,1における端
縁部がその全周にわたり支持枠体3によって挟持される
ので、堅牢な取付状態に保持される。
In the mounting structure, after the support frame 3 is mounted on the edge of the radio wave absorbing plates 1 and 1, the anchor 9 is pushed into the holding groove 10a by a simple operation. In a positioning state in which the radio wave absorbing plates 1 and 1 face the mounting surface 2 substantially in parallel, the mounting can be performed very quickly so as to cover the mounting surface 2. The radio wave absorbing plates 1 and 1 themselves have low rigidity because they do not have a resin plate or a radio wave reflecting plate, but the edges of the radio wave absorbing plates 1 and 1 are sandwiched by the support frame 3 over the entire circumference. Therefore, it is held in a robust mounting state.

【0011】また、前記取付構造を用いて電波吸収板
1,1を被取付面2に取り付ける施工を行うに際して
は、工場において電波吸収板1,1に支持枠体3を、た
とえば接着手段などによって予め仮付けしておき、この
状態で取付現場まで搬送して、電波吸収板1,1に取り
付いた支持枠体3のアンカー部9の配設形状に合わせて
取付部材10を被取付面2にねじ11で固定すれば、そ
の取付部材10の保持溝部10a内にアンカー部9を押
し込むほぼワンタッチ作業で電波吸収板1,1を被取付
面2へ取り付けることができる。したがって、この取付
構造を用いた取付施工方法は、作業時間に厳しい制限が
ある有料道路の料金所の構造物などへの電波吸収板1,
1の取り付けに十分対応することができる。
When the radio wave absorbing plates 1 and 1 are mounted on the mounting surface 2 using the mounting structure, the support frame 3 is attached to the radio wave absorbing plates 1 and 1 in a factory by, for example, bonding means. In this state, the mounting member 10 is transported to the mounting site in this state, and the mounting member 10 is attached to the mounting surface 2 in accordance with the arrangement shape of the anchor portion 9 of the support frame 3 mounted on the radio wave absorbing plates 1 and 1. By fixing with the screw 11, the radio wave absorbing plates 1 and 1 can be attached to the attachment surface 2 by almost one-touch operation of pushing the anchor portion 9 into the holding groove 10a of the attachment member 10. Therefore, the mounting construction method using this mounting structure, the radio wave absorbing plate 1, such as tollgate structure of toll road with severe restrictions on working time
1 can be adequately supported.

【0012】図4(a)は前記第1実施形態の変形例を
示す概略底面図、図4(b)は図4(a)のC−C線切
断拡大断面図である。これらの図において、図1と同一
若しくは同等のものには同一の符号を付して、重複する
説明を省略する。この取付構造は、図1の第1実施形態
の取付構造を2つ並設して、4つの電波吸収板1を被取
付面2に取り付けたものである。したがって、図4
(a)のA−A線切断拡大断面図およびB−B線切断拡
大断面図は図2(a),(b)に示す通りである。図4
(b)に示すように、隣接する2つの取付部材10,1
0は、図4(b)に示すように、互いに対向面を接触さ
せた配置で設けられるので、互いに補助し合って取付強
度が一層向上する。
FIG. 4A is a schematic bottom view showing a modification of the first embodiment, and FIG. 4B is an enlarged sectional view taken along the line CC of FIG. 4A. In these drawings, the same or equivalent components as those in FIG. 1 are denoted by the same reference numerals, and redundant description will be omitted. In this mounting structure, two mounting structures according to the first embodiment shown in FIG. 1 are arranged in parallel, and four radio wave absorbing plates 1 are mounted on the mounting surface 2. Therefore, FIG.
2A is an enlarged sectional view taken along line AA and FIG. 2B is an enlarged sectional view taken along line BB. FIG.
As shown in (b), two adjacent mounting members 10, 1
As shown in FIG. 4B, the reference numerals 0 are provided in an arrangement in which the opposing surfaces are in contact with each other, so that they are mutually assisted and the mounting strength is further improved.

【0013】前記実施形態では、電波吸収板1を被取付
面2に対し対面させて概ね平行に取り付けるための支持
枠体3について説明したが、本発明では、図6に示すよ
うに、電波吸収板1を被取付面2に対し概ね垂直に取り
付けるための支持枠体3Aについても適用できる。
In the above embodiment, the support frame 3 for mounting the radio wave absorbing plate 1 so as to face the mounting surface 2 so as to be substantially parallel thereto has been described. In the present invention, however, as shown in FIG. The present invention is also applicable to a support frame 3A for mounting the plate 1 substantially perpendicular to the mounting surface 2.

【0014】[0014]

【発明の効果】以上説明したように、本発明のゴム製の
枠体および電波吸収構造によれば、カーボン以外の軟磁
性体の粉末を添加したゴムによって枠体を成形したの
で、電波吸収板で電波を吸収し得るだけでなく、前記ゴ
ム製の枠体においても電波を吸収し得るので、電波吸収
効果がより一層高まる。
As described above, according to the rubber frame and the radio wave absorbing structure of the present invention, since the frame is formed of rubber to which a soft magnetic powder other than carbon is added, the radio wave absorbing plate is formed. Not only can absorb the radio wave, but also the rubber frame can absorb the radio wave, so that the radio wave absorption effect is further enhanced.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の第1実施形態に係る電波吸収板の取付
構造を示す底面図である。
FIG. 1 is a bottom view showing a mounting structure of a radio wave absorbing plate according to a first embodiment of the present invention.

【図2】(a)は図1のA−A線切断拡大断面図、
(b)はB−B線切断拡大断面図である。
FIG. 2A is an enlarged cross-sectional view taken along line AA of FIG. 1;
(B) is an enlarged sectional view cut along the line BB.

【図3】支持枠体の一部を示す破断斜視図である。FIG. 3 is a cutaway perspective view showing a part of a support frame.

【図4】(a)は第1実施形態の変形例を示す底面図、
(b)は(a)のC−C線切断拡大断面図である。
FIG. 4A is a bottom view showing a modification of the first embodiment,
(B) is an enlarged sectional view taken along line CC of (a).

【図5】本発明の支持枠体の変形例を示す一部断面した
斜視図である。
FIG. 5 is a partially sectional perspective view showing a modified example of the support frame of the present invention.

【符号の説明】[Explanation of symbols]

1:電波吸収板 2:被取付面 3,3A:支持枠体(枠体) 5,6:装着溝 1: radio wave absorbing plate 2: mounting surface 3, 3A: support frame (frame) 5, 6: mounting groove

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 電波吸収板の周囲の端縁を挟持する装着
溝を有し、かつ、前記装着溝がループ状に連なったゴム
製の枠体であって、 カーボン以外の軟磁性体の粉末がゴムに添加されたゴム
製の枠体。
1. A rubber frame having a mounting groove for sandwiching a peripheral edge of a radio wave absorbing plate, and wherein the mounting groove is connected in a loop shape, wherein a powder of a soft magnetic material other than carbon is provided. Is a rubber frame that is added to rubber.
【請求項2】 請求項1において、 前記軟磁性体の粉末がフェライト,純鉄またはニッケル
で、かつ、前記ゴムにはカーボンが添加されているゴム
製の枠体。
2. The rubber frame according to claim 1, wherein the powder of the soft magnetic material is ferrite, pure iron or nickel, and carbon is added to the rubber.
【請求項3】 請求項1において、 前記カーボン以外の軟磁性体の粉末が1重量%以上添加
されたゴム製の枠体。
3. The rubber frame according to claim 1, wherein a soft magnetic powder other than carbon is added in an amount of 1% by weight or more.
【請求項4】 請求項1,2もしくは3の枠体に、電波
吸収機能を有する電波吸収板を装着してなる電波吸収構
造。
4. A radio wave absorbing structure in which a radio wave absorbing plate having a radio wave absorbing function is mounted on the frame of claim 1, 2, or 3.
JP2001042841A 2001-02-20 2001-02-20 Rubber frame and radio wave absorption structure Expired - Lifetime JP4403444B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001042841A JP4403444B2 (en) 2001-02-20 2001-02-20 Rubber frame and radio wave absorption structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001042841A JP4403444B2 (en) 2001-02-20 2001-02-20 Rubber frame and radio wave absorption structure

Publications (2)

Publication Number Publication Date
JP2002246784A true JP2002246784A (en) 2002-08-30
JP4403444B2 JP4403444B2 (en) 2010-01-27

Family

ID=18905089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001042841A Expired - Lifetime JP4403444B2 (en) 2001-02-20 2001-02-20 Rubber frame and radio wave absorption structure

Country Status (1)

Country Link
JP (1) JP4403444B2 (en)

Also Published As

Publication number Publication date
JP4403444B2 (en) 2010-01-27

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