JPS6349965Y2 - - Google Patents
Info
- Publication number
- JPS6349965Y2 JPS6349965Y2 JP1980005440U JP544080U JPS6349965Y2 JP S6349965 Y2 JPS6349965 Y2 JP S6349965Y2 JP 1980005440 U JP1980005440 U JP 1980005440U JP 544080 U JP544080 U JP 544080U JP S6349965 Y2 JPS6349965 Y2 JP S6349965Y2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- main body
- case
- waterproof
- gasket
- 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
Links
- 230000000694 effects Effects 0.000 description 7
- 238000004078 waterproofing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Details Of Television Systems (AREA)
Description
【考案の詳細な説明】
本考案はテレビジヨン信号分配器・分岐器用ケ
ースに関する。[Detailed Description of the Invention] The present invention relates to a case for a television signal distributor/splitter.
この種分配器・分岐器では信号の漏洩および混
入を防止することが必要であるから分配回路、分
岐回路をシールドケースに収納し、入出力信号経
路は同軸コネクタおよび同軸ケーブルにより構成
している。シールドケースは通常本体と蓋とによ
り構成されているから電磁的に完全密封されてい
ず、本体と蓋との接合部における信号通過量が問
題となる。そして、分配器、分岐器を防水型に構
成するときは更に問題となる。この場合は、接合
部にゴムパツキンを装着するため、一層信号が通
過し易くなるからである。 In this type of distributor/branch, it is necessary to prevent signal leakage and mixing, so the distribution circuit and branch circuit are housed in a shield case, and the input/output signal path is constructed of coaxial connectors and coaxial cables. Since a shield case usually consists of a main body and a lid, it is not completely electromagnetically sealed, and the amount of signal passing through the joint between the main body and the lid poses a problem. Further problems arise when the distributor and turnout are configured to be waterproof. In this case, since a rubber gasket is attached to the joint, it becomes easier for signals to pass through.
そこで、従来の防水型分配器、分岐器では第１
図に示すように、本体１と蓋２との接合部のケー
ス内外方向の信号通路をより長くすべく面状と
し、然も単なる平面状にせず３次曲面となるよう
にして信号通路が屈曲するようにしている。これ
により信号通過を抑御する効果は向上する。しか
しながら、本体１と蓋２とを固定するために用い
られるねじ締付部を相互に離間するように設けざ
るを得ず、ねじ締付部の中間位置では本体１と蓋
２とが離間し勝ちであつてこの部分で信号通過が
起り易くなる。 Therefore, in conventional waterproof distributors and turnouts, the first
As shown in the figure, the signal path at the joint between the main body 1 and the lid 2 in the direction of the inside and outside of the case is made into a planar shape to make it longer, and the signal path is curved so that it becomes a cubic curved surface instead of a simple planar shape. I try to do that. This improves the effect of suppressing signal passage. However, the screw tightening parts used for fixing the main body 1 and the lid 2 have to be provided so as to be spaced apart from each other, and the main body 1 and the lid 2 tend to separate from each other at an intermediate position of the screw fastening parts. Therefore, signal passage is more likely to occur in this part.
本考案は上述の点を考慮してなされたもので、
防水効果および電磁シールド効果が良好なテレビ
ジヨン信号分配器・分岐器用ケースを提供するこ
とを目的とする。 This invention was made in consideration of the above points,
An object of the present invention is to provide a case for a television signal distributor/branch that has good waterproof effects and electromagnetic shielding effects.
この目的達成のため、本考案では、
本体とこの本体の下部に配されるべき蓋との接
合部に防水用および電磁シールド用の構造を設け
てなるテレビジヨン信号分配器・分岐器用ケース
において、
前記本体には一つの凸部を挟んだ二つの凹部
が、また前記蓋には前記本体の凸部に対応する一
つの凹部および前記二つの凹部に対応する二つの
凸部が設けられてなり、前記蓋の外側凹部には防
水パツキンが接着されており、前記蓋の凹部には
シールドガスケツトが挿入され、同じく蓋の内側
凸部には尖端が設けられ、
前記蓋の内側凸部の尖端が前記本体の内側凹部
の底面に接触することによつて定まる位置関係で
前記シールドガスケツトおよび前記防水パツキン
を挟んで前記本体と前記蓋とが押圧されるように
したことを特徴とするテレビジヨン信号分配器・
分岐器用ケースを提供するものである。 To achieve this objective, the present invention provides a television signal distributor/branching case in which a waterproof and electromagnetic shielding structure is provided at the joint between the main body and the lid placed at the bottom of the main body. The main body is provided with two recesses sandwiching one protrusion, and the lid is provided with one recess corresponding to the protrusion of the main body and two protrusions corresponding to the two recesses, A waterproof gasket is adhered to the outer concave portion of the lid, a shield gasket is inserted into the concave portion of the lid, and a tip is provided on the inner convex portion of the lid, and the tip of the inner convex portion of the lid is provided with a tip. A television signal characterized in that the main body and the lid are pressed with the shield gasket and the waterproof gasket in between in a positional relationship determined by contact with the bottom surface of the inner recess of the main body. Distributor·
The present invention provides a case for a turnout.
以下第２図および第３図を参照して本考案の一
実施例を説明する。 An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.
第２図は本考案に係るケースの接合部構造の一
例を示した部分縦断面図であり、１は本体、２は
蓋であり、これら両者の接合部には１ａ〜１ｄお
よび２ａ〜２ｃの凹凸が設けられている。そし
て、本体側では最内側に第１の凹部１ａが、この
第１凹部１ａに連つて第１の凸部１ｂが、この第
１凸部１ｂの外側に第２の凹部１ｃが、そして最
外側に第２凹部１ｃに連つて第２凸部１ｄが設け
られている。一方、蓋側では最内側に第１の凸部
２ａが、この第１凸部２ａに連つて凹部２ｂが、
そして最外側に凹部２ｂに連つて第２の凸部２ｃ
が設けられている。 FIG. 2 is a partial longitudinal cross-sectional view showing an example of the joint structure of the case according to the present invention, 1 is the main body, 2 is the lid, and the joints between these two are 1a to 1d and 2a to 2c. There are unevenness. On the main body side, there is a first recess 1a on the innermost side, a first protrusion 1b connected to the first recess 1a, a second recess 1c on the outside of the first protrusion 1b, and a second recess 1c on the outermost side. A second convex portion 1d is provided next to the second concave portion 1c. On the other hand, on the lid side, a first protrusion 2a is provided on the innermost side, and a recess 2b is connected to the first protrusion 2a.
A second convex portion 2c is connected to the concave portion 2b on the outermost side.
is provided.
ここで、本体１および蓋２の各凹部、凸部の関
係は、本体側の凹凸の蓋側の凹凸が対向するよう
になつている。すなわち、１ａと２ａ、１ｂと２
ｂ、１ｃと２ｃが対向し１ｄは蓋側の対向部を有
さず、蓋２を覆うようになつている。そして、本
体１と蓋２とを接合させたとき、本体側の第１凹
部１ａに蓋側の第１凸部２ａが当接し、このとき
本体と蓋との間には１ｂ−２ｂ間および１ｃ−２
ｃ間にトンネル状空間が形成される。このうち１
ｂ−２ｂ間の空間にはシールドガスケツト４が、
また１ｃ−２ｃ間の空間には防水パツキン３が設
けらており、これら装入材を介して本体側と蓋側
とが接触する。したがつて本体１と蓋２とは１ａ
−２ａ間、１ｂ−２ｂ間、１ｃ−２ｃ間の３個所
で接触する。１ａ−２ａ間では、２ａが１ａに当
接した際に２ａ尖端を圧潰することにより本体１
と蓋との接合部全周に亘つて連続した接触線を形
成し、機械的のみならず電気的にも本体１と蓋２
とを接続する。１ｂ−２ｂ間でもシールドガスケ
ツト４を介して機械的および電気的な接続が行わ
れる。ここでシールドガスケツトとは同軸ケーブ
ルの編組と略々同様の構成で多数の細い導線の編
組体である。したがつて本体側第１凸部１ｂと蓋
側凹部２ｂとは１ａ−２ａ間のような剛性接触で
はなく柔接触を行う。更に１ｃ−２ｃ間でもゴム
製の防水パツキン３を介して柔接触が行われる。
この場合、図示の如く本体側第２凹部１ｃおよび
蓋側第２凸部２ｃの各中央部に小突起を設けてお
けば防水パツキン３はより防水効果を発揮する。
防水パツキン３を導電ゴム製とすれば１ｃ−２ｃ
間も電気的接触を行い得る。 Here, the relationship between the concave portions and convex portions of the main body 1 and the lid 2 is such that the concave and convex portions on the lid side are opposed to the concave and convex portions on the main body side. That is, 1a and 2a, 1b and 2
b, 1c and 2c face each other, and 1d does not have a facing portion on the lid side and covers the lid 2. When the main body 1 and the lid 2 are joined together, the first convex portion 2a on the lid side comes into contact with the first recess 1a on the main body side, and at this time, there are gaps between 1b and 2b and 1c between the main body and the lid. -2
A tunnel-like space is formed between c. 1 of these
A shield gasket 4 is placed in the space between b and 2b.
Further, a waterproof packing 3 is provided in the space between 1c and 2c, and the main body side and the lid side come into contact via these charging materials. Therefore, the main body 1 and the lid 2 are 1a
-2a, 1b-2b, and 1c-2c. Between 1a and 2a, when 2a contacts 1a, the main body 1 is crushed by crushing the tip of 2a.
A continuous contact line is formed around the entire circumference of the joint between the body 1 and the lid, and the connection between the body 1 and the lid 2 is established not only mechanically but also electrically.
Connect with. Mechanical and electrical connections are also made between 1b and 2b via the shield gasket 4. Here, the shield gasket is a braided body of a large number of thin conductive wires having a configuration substantially similar to that of a coaxial cable braid. Therefore, the first convex portion 1b on the main body side and the recessed portion 2b on the lid side make soft contact rather than a rigid contact like between 1a and 2a. Furthermore, soft contact is made between 1c and 2c via the rubber waterproof gasket 3.
In this case, if a small protrusion is provided at the center of each of the second concave portion 1c on the main body side and the second convex portion 2c on the lid side as shown in the figure, the waterproof gasket 3 will exhibit a more waterproof effect.
If the waterproof gasket 3 is made of conductive rubber, it will be 1c-2c.
Electrical contact can also be made between the two.
これら１ａ−２ａ間、１ｂ−２ｂ間、１ｃ−２
ｃ間の接触によりケース内、外間は機械的、電磁
的に遮断され、防水および信号通過阻止が行われ
る。防水は主として、１ｃ−２ｃ間により行わ
れ、また本体の第２凸部１ｄにより１ｃ−２ｃ間
への浸水が防止される。一方、信号通過阻止は１
ａ−２ａ間、１ｂ−２ｂ間の接触、および本体側
凹凸部１ａ−１ｄおよび蓋側凹凸部２a.２ｃによ
りケース内外間に形成される信号通路により行わ
れる。この信号通路はジグザグ状であること、お
よびジグザグにした分だけ通路長が長くなつてい
ることにより信号通過を阻止し得る。 Between these 1a-2a, 1b-2b, 1c-2
The contact between C and C mechanically and electromagnetically isolates the inside and outside of the case, thereby providing waterproofing and blocking signal passage. Waterproofing is mainly performed between 1c and 2c, and the second convex portion 1d of the main body prevents water from entering between 1c and 2c. On the other hand, the signal passage blocking is 1
This is done by the contact between a and 2a and between 1b and 2b, and the signal path formed between the inside and outside of the case by the main body side uneven parts 1a to 1d and the lid side uneven parts 2a and 2c. Since this signal path has a zigzag shape and the length of the path is increased by the zigzag, passage of the signal can be prevented.
第３図は従来の分配器、分岐器ケースと本考案
のケースとの信号減衰量の実測結果を示したもの
で、ａ）の場合はケース内外間にＬ字型信号通路
を形成し、該通路の途中に防水パツキンを装入し
たものであり、この構造のケース内外間に通過す
る信号の減衰量が−80dBのときを基準として相
対減衰量を求めることとする。そして、ｂ）の場
合のようにａ）の場合のＬ型信号通路に、本体側
凹部と蓋側凸部による屈曲部を設けたときの信号
減衰量は−100dBすなわち相対減衰量は−20dB
となり、本発明の場合の信号減衰量は−115dB、
相対減衰量は−35dBであつた。 Figure 3 shows the actual measurement results of signal attenuation between a conventional distributor/brancher case and the case of the present invention. In case a), an L-shaped signal path is formed between the inside and outside of the case, and A waterproof packing is inserted in the middle of the passage, and the relative attenuation is calculated based on the attenuation of -80 dB of the signal passing between the inside and outside of the case with this structure. Then, when the L-shaped signal path in case a) is provided with a bent part by the concave part on the main body side and the convex part on the lid side, as in case b), the signal attenuation amount is -100 dB, that is, the relative attenuation amount is -20 dB.
Therefore, the signal attenuation in the case of the present invention is -115dB,
The relative attenuation was -35dB.
本考案は上述のように、本体とこの本体の下部
に配されるべき蓋との接合部に防水用および電磁
シールド用の構造を設けてなるテレビジヨン信号
分配器・分岐器用ケースにおいて、前記本体には
一つの凸部を挟んだ二つの凹部が、また前記蓋に
は前記本体の凸部に対応する一つの凹部および前
記二つの凹部に対応する二つの凸部が設けられて
なり、前記蓋の外側凹部には防水パツキンが接着
されており、前記蓋の凹部にはシールドガスケツ
トが挿入され、同じく蓋の内側凸部には尖端が設
けられ、前記蓋の内側凸部の尖端が前記本体の内
側凹部の底面に接触することによつて定まる位置
関係で前記シールドガスケツトおよび前記防水パ
ツキンを挟んで前記本体と前記蓋とが押圧される
ようにしたため、防水効果および電磁シールド効
果に優れたテレビジヨン信号分配器・分岐器用ケ
ースを提供することができる。すなわち防水パツ
キンが最も外側に配されていてその内側にシール
ドガスケツト、尖端の圧潰接触構造からなる２段
の電磁シールドが設けられている。 As described above, the present invention provides a television signal distributor/branching case in which a waterproof and electromagnetic shielding structure is provided at the joint between the main body and a lid disposed at the bottom of the main body. has two concave portions sandwiching one convex portion, and the lid is provided with one concave portion corresponding to the convex portion of the main body and two convex portions corresponding to the two concave portions; A waterproof gasket is adhered to the outer recess of the lid, a shield gasket is inserted into the recess of the lid, and a tip is provided on the inside protrusion of the lid, and the tip of the inner protrusion of the lid is attached to the main body. Since the main body and the lid are pressed with the shield gasket and the waterproof gasket in between in a positional relationship determined by contact with the bottom surface of the inner recess, the main body and the lid have excellent waterproof and electromagnetic shielding effects. A case for a television signal splitter/brancher can be provided. That is, a waterproof gasket is disposed on the outermost side, and inside thereof a two-stage electromagnetic shield consisting of a shield gasket and a crushing contact structure at the tip is provided.
しかも本体と蓋との接合部の厚さを最少限にす
ることができ、寸法的要求が厳格なこの種ケース
に最適な構造となつている。そして、絶縁材で接
着しても差支えない防水パツキンは上側に配され
る本体に設け、絶縁材で接着すると不都合なシー
ルドガスケツトは下に配される蓋に設けるため、
防水効果および電磁シールド効果を損なうことが
ない。 Furthermore, the thickness of the joint between the main body and the lid can be minimized, making the structure ideal for this type of case, which has strict dimensional requirements. The waterproof gasket, which can be glued with an insulating material, is provided on the main body located on the upper side, and the shield gasket, which is inconvenient to glue with an insulating material, is provided on the lid, which is placed below.
Waterproofing effect and electromagnetic shielding effect are not impaired.
第１図は従来のテレビジヨン信号分配器、分岐
器用ケースの一例を示す図、第２図は本考案に係
るケースの接合部構造を示す部分縦断面図、第３
図は従来のケースと本考案に係るケースとの信号
漏洩量の実測結果を対比的に示す図である。
１…本体、２…蓋、３…防水パツキン、４…シ
ールドガスケツト。
FIG. 1 is a diagram showing an example of a conventional television signal distributor/branching case; FIG. 2 is a partial vertical sectional view showing the joint structure of the case according to the present invention; and FIG.
The figure is a diagram comparatively showing the actual measurement results of the amount of signal leakage in the conventional case and the case according to the present invention. 1...Body, 2...Lid, 3...Waterproof gasket, 4...Shield gasket.
Claims (1)
合部に防水用および電磁シールド用の構造を設け
てなるテレビジヨン信号分配器・分岐器用ケース
において、 前記本体には一つの凸部を挟んだ二つの凹部
が、また前記蓋には前記本体の凸部に対応する一
つの凹部および前記二つの凹部に対応する二つの
凸部が設けられてなり、前記蓋の外側凹部には防
水パツキンが接着されており、前記蓋の凹部には
シールドガスケツトが挿入され、同じく蓋の内側
凸部には尖端が設けられ、 前記蓋の内側凸部の尖端が前記本体の内側凹部
の底面に接触することによつて定まる位置関係で
前記シールドガスケツトおよび前記防水パツキン
を挟んで前記本体と前記蓋とが押圧されるように
したことを特徴とするテレビジヨン信号分配器・
分岐器用ケース。[Scope of Claim for Utility Model Registration] A television signal distributor/branching case comprising a waterproof and electromagnetic shielding structure at the joint between the main body and a lid disposed at the bottom of the main body, comprising: has two concave portions sandwiching one convex portion, and the lid is provided with one concave portion corresponding to the convex portion of the main body and two convex portions corresponding to the two concave portions; A waterproof gasket is adhered to the outer concave portion of the lid, a shield gasket is inserted into the concave portion of the lid, and a tip is provided on the inside convex portion of the lid, and the tip of the inside convex portion of the lid is attached to the main body. A television signal distributor characterized in that the main body and the lid are pressed with the shield gasket and the waterproof gasket in between in a positional relationship determined by contact with the bottom surface of an inner recessed portion of the television signal distributor.・
Turnout case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980005440U JPS6349965Y2 (en) | 1980-01-22 | 1980-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980005440U JPS6349965Y2 (en) | 1980-01-22 | 1980-01-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56108661U JPS56108661U (en) | 1981-08-22 |
| JPS6349965Y2 true JPS6349965Y2 (en) | 1988-12-22 |
Family
ID=29602112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980005440U Expired JPS6349965Y2 (en) | 1980-01-22 | 1980-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6349965Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019220635A (en) * | 2018-06-22 | 2019-12-26 | 極東開発工業株式会社 | Electronic component housing case and electronic component housing body |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4334265B2 (en) * | 2003-04-21 | 2009-09-30 | シャープ株式会社 | Electric wave leakage prevention structure |
| JP5787864B2 (en) * | 2012-12-06 | 2015-09-30 | 京セラコネクタプロダクツ株式会社 | Branch connector |
| JP6522886B2 (en) * | 2014-04-25 | 2019-05-29 | フクダ電子株式会社 | Case structure of medical electronic device |
| JP2021193694A (en) * | 2018-07-19 | 2021-12-23 | アイシン・エィ・ダブリュ株式会社 | Case sealing structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833652Y2 (en) * | 1975-01-31 | 1983-07-27 | マスプロデンコウ カブシキガイシヤ | Waterproof structure of transmission line connections in CATV equipment |
| JPS5728482Y2 (en) * | 1975-03-27 | 1982-06-22 | ||
| JPS565345Y2 (en) * | 1977-12-28 | 1981-02-05 |
-
1980
- 1980-01-22 JP JP1980005440U patent/JPS6349965Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019220635A (en) * | 2018-06-22 | 2019-12-26 | 極東開発工業株式会社 | Electronic component housing case and electronic component housing body |
| JP2022113716A (en) * | 2018-06-22 | 2022-08-04 | 極東開発工業株式会社 | Electronic component housing case |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56108661U (en) | 1981-08-22 |
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