JPH0511124A - Waterproofing device for optical fiber cable - Google Patents
Waterproofing device for optical fiber cableInfo
- Publication number
- JPH0511124A JPH0511124A JP16688091A JP16688091A JPH0511124A JP H0511124 A JPH0511124 A JP H0511124A JP 16688091 A JP16688091 A JP 16688091A JP 16688091 A JP16688091 A JP 16688091A JP H0511124 A JPH0511124 A JP H0511124A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber cable
- cable
- gasket
- metal fitting
- 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.)
- Pending
Links
Landscapes
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ケーブルテレビジョン
(ＣＡＴＶ)等の信号伝送路に光ファイバーケーブルを使
用した際の、屋外受信装置に使用される光ファイバーケ
ーブル防水装置に関するものである。BACKGROUND OF THE INVENTION The present invention relates to a cable television.
The present invention relates to an optical fiber cable waterproof device used for an outdoor receiving device when an optical fiber cable is used for a signal transmission line such as (CATV).
【０００２】[0002]
【従来の技術】近年普及の著しい、ＣＡＴＶの伝送路に
於て、同軸ケーブルによる長い伝送路では伝送路途中で
の信号減衰量が大きく、途中で多くの幹線増幅器を設置
し、信号を伝送している。しかしながら送信点から遠方
になるほど、画質の劣化が大きくなり問題であった。し
かしながら近年、低減衰量の光ファイバーケーブルによ
る長距離伝送が利用されるようになり、終端に光信号を
ＲＦ信号に変換する(Ｏ／Ｅ)受信器が多く設置されるよ
うになってきた。2. Description of the Related Art In a CATV transmission line, which has been remarkably popular in recent years, a long transmission line formed by a coaxial cable has a large amount of signal attenuation along the transmission line, and many trunk line amplifiers are installed to transmit signals. ing. However, the further the distance from the transmission point, the greater the deterioration of image quality, which is a problem. However, in recent years, long-distance transmission using an optical fiber cable having a low attenuation has come to be used, and many (O / E) receivers for converting an optical signal into an RF signal have been installed at the end.
【０００３】これら、受信機の多くは屋外に設置される
ため機器筐体は機密、防水構造になっている。Since many of these receivers are installed outdoors, the equipment casing has a confidential and waterproof structure.
【０００４】同軸ケーブルの場合には機密、防水型のコ
ネクターが市販されており機器筐体は密封、防水状態の
まま信号線の接続が可能であった。In the case of the coaxial cable, a confidential and waterproof connector is commercially available, and the equipment casing is sealed and the signal line can be connected in a waterproof state.
【０００５】しかしながら光ファイバーケーブルは、図
３に示すようにケーブル自体が機器筐体内部まで引き込
まれ、且つ、固定される構造であるため、光ファイバー
ケーブルを一旦機器筐体内部に引き込み工事をした後、
防水、機密工事をする必要がある。以下に従来の光ファ
イバーケーブルと機器筐体との密閉、防水構造について
説明する。However, since the optical fiber cable has a structure in which the cable itself is drawn into and fixed inside the equipment housing as shown in FIG. 3, after the optical fiber cable is once drawn into the equipment housing, construction work is performed.
It is necessary to carry out waterproofing and confidential work. The conventional sealing and waterproof structure between the optical fiber cable and the device casing will be described below.
【０００６】図３は従来の光ファイバーケーブル防水装
置の機密、防水構造を示すものである。図３に於て、１
は機器筐体、２はケーブル導入パイプ、３は光ファイバ
ーケーブル、４はテンションメンバー、５はテンション
メンバー固定ボルト、６は光ファイバー心線、７はＳＤ
テープ、８はシーリングテープ、９はＧＳテープ、10は
ステンレス線、11は粘着アルミテープ、12はＰＶＣテー
プである。FIG. 3 shows a conventional optical fiber cable waterproof device which has a confidential and waterproof structure. In FIG. 3, 1
Is a device housing, 2 is a cable introduction pipe, 3 is an optical fiber cable, 4 is a tension member, 5 is a tension member fixing bolt, 6 is an optical fiber core wire, and 7 is SD.
Tape, 8 is a sealing tape, 9 is a GS tape, 10 is a stainless wire, 11 is an adhesive aluminum tape, and 12 is a PVC tape.
【０００７】光ファイバーケーブルの機器筐体への導入
に際しては、該光ファイバーケーブル３の終端は外皮を
剥がれ、光ファイバー心線６とテンションメンバー４に
分離され、機器筐体１のケーブル導入パイプ２より機器
筐体１の内部へ引き込まれる。テンションメンバー４は
機器筐体１の内部にあるテンションメンバー固定ボルト
５にて固定され、機器筐体１と光ファイバーケーブル自
体とを固定する。光ファイバー心線６は筐体内部のコネ
クターへスプライシングされる。この状態ではケーブル
導入パイプ２と光ファイバーケーブル３の外皮隙間を通
って雨など水分が進入し、内部の腐食等の原因となる。When the optical fiber cable is introduced into the equipment casing, the end of the optical fiber cable 3 is peeled off and separated into the optical fiber core wire 6 and the tension member 4, and the equipment casing 1 is connected via the cable introduction pipe 2 to the equipment casing. It is drawn inside the body 1. The tension member 4 is fixed by a tension member fixing bolt 5 inside the device housing 1 to fix the device housing 1 and the optical fiber cable itself. The optical fiber core wire 6 is spliced to a connector inside the housing. In this state, moisture such as rain enters through the outer space between the cable introduction pipe 2 and the optical fiber cable 3 and causes corrosion inside.
【０００８】これを防止すべく光ファイバーケーブル３
の外皮を伝わって進入する部分とケーブル導入パイプ２
の表面を伝わって進入する部分とにＳＤテープ７，シー
リングテープ８，ＧＳテープ９，ステンレス線10，粘着
アルミテープ11，ＰＶＣテープ12などの各種防水用テー
プ５種類及び締結用のステレンス線10を巻き付ける工事
が必要である。To prevent this, the optical fiber cable 3
And the cable introduction pipe 2 that penetrates through the outer skin of the cable
5 kinds of various waterproof tapes such as SD tape 7, sealing tape 8, GS tape 9, stainless wire 10, adhesive aluminum tape 11 and PVC tape 12 and a stainless steel wire 10 for fastening to the part which goes through along the surface of Winding work is required.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら上記の従
来の防水装置の構成では、何回も５種類のテープ、及び
ステンレス線を巻き付ける必要があり、非常に手間がか
かる。また工事に先立ちこれだけの種類の材料を事前に
準備する必要があり、現場で非常に手間がかかるという
問題を有していた。However, in the structure of the conventional waterproof device described above, it is necessary to wind the five kinds of tapes and the stainless steel wire many times, which is very troublesome. In addition, it is necessary to prepare this kind of material in advance prior to the construction, and there is a problem that it is very troublesome on site.
【００１０】本発明は上記従来の問題点を解決するもの
で、機器筐体に事前に取り付けられた防水構造に光ファ
イバーケーブルを通し、締付け金具を締結するのみで、
防水構造を確保すると共に、事前の材料準備もなくし、
あたかも同軸ケーブルの結線と同一の容易な作業を提供
することを目的とする。The present invention solves the above-mentioned problems of the prior art. Simply by inserting an optical fiber cable through a waterproof structure pre-installed in the equipment casing and fastening a fastening metal,
While ensuring a waterproof structure, there is no need to prepare materials in advance,
Its purpose is to provide the same easy work as connecting a coaxial cable.
【００１１】[0011]
【課題を解決するための手段】本発明は、機器筐体に取
り付けられる装置本体金具に、同筒状のパッキングを組
み込み、更にこのパッキンを締結しながら変形させる締
め付け金具を予め取り付けておくことを特徴とする。SUMMARY OF THE INVENTION According to the present invention, a tubular packing is incorporated in an apparatus main body metal fitting to be attached to an equipment casing, and a fastening metal fitting for deforming the packing while fastening the packing is previously attached. Characterize.
【００１２】[0012]
【作用】本発明によれば、予め機器筐体に装置本体金具
を取り付けた状態で設置しておけば、光ファイバーケー
ブルの終端を装置本体金具を通して機器筐体に引込んだ
後、締付け金具を締結すれば、パッキンは変形し装置本
体金具とケーブル外皮との間の隙間を無くし、さらには
適当な圧力で密着して防水構造をとることが出来る。According to the present invention, if the device main body metal fitting is attached to the equipment housing in advance, the end of the optical fiber cable is drawn into the equipment housing through the device main body metal fitting, and then the tightening metal fitting is fastened. If so, the packing is deformed to eliminate the gap between the apparatus main body metal fitting and the cable outer cover, and further, the packing can be adhered with an appropriate pressure to form a waterproof structure.
【００１３】[0013]
【実施例】図１(1)は本発明の一実施例に係る組立状態
図、図１(2)は図１(1)の要部拡大図を示す。図１におい
て、13はパッキン、14はパッキン押えリング、15は締付
け金具、16は装置本体金具を示し、その他、前記図３と
同じ部材には同じ番号を付し、その説明は省略する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 (1) is an assembly state diagram according to an embodiment of the present invention, and FIG. 1 (2) is an enlarged view of a main part of FIG. 1 (1). In FIG. 1, 13 is a packing, 14 is a packing pressing ring, 15 is a fastening metal fitting, 16 is a device main body fitting, and other same members as those in FIG.
【００１４】図１(1)及び(2)に示すように、機器筐体１
の側壁に穿たれた装着孔１ＡにＯリング20を介して装置
本体金具16が装着(締結)されている。この装置本体金具
16には締付け金具15のネジ15Ａと螺合するネジ16Ａを有
し、装置本体金具16の嵌込孔16Ｃにはパッキン13とその
パッキン押えリング14が嵌込まれていて、それら両金具
15，16の中心部は光ファイバーケーブル３を挿通するた
めの貫通孔15Ｂ，16Ｂがあけられている。As shown in FIGS. 1A and 1B, a device housing 1
The apparatus main body metal fitting 16 is attached (fastened) to the attachment hole 1A formed in the side wall of the device via the O-ring 20. This device body bracket
16 has a screw 16A to be screwed with the screw 15A of the fastening metal fitting 15, and the packing 13 and its packing holding ring 14 are fitted in the fitting holes 16C of the apparatus main body fitting 16 and these both fittings are fitted.
Through holes 15B and 16B for inserting the optical fiber cable 3 are formed in the central portions of 15 and 16.
【００１５】次に、光ファイバーケーブルを機器筐体１
に導入する場合についてのべる。Next, the optical fiber cable is attached to the equipment casing 1.
Let's talk about the case of introducing into.
【００１６】まず、光ファイバーケーブルの終端は外皮
を剥がれ、光ファイバー心線６とテンションメンバー４
に分離され、機器筐体１に予め取り付けられた光ファイ
バーケーブル防水装置を構成するパッキン13、パッキン
押えリング14を通して機器筐体内部へ引き込まれる。テ
ンションメンバー４は、機器筐体１の内部にあるテンシ
ョンメンバー固定ボルト５にて固定され、機器筐体１と
ケーブル自体とを固定する。First, the end of the optical fiber cable is peeled off, and the optical fiber core wire 6 and the tension member 4 are removed.
And is pulled into the inside of the equipment casing 1 through the packing 13 and the packing pressing ring 14 which form the optical fiber cable waterproofing device which is separated in advance and attached to the equipment casing 1. The tension member 4 is fixed by a tension member fixing bolt 5 inside the device housing 1 to fix the device housing 1 and the cable itself.
【００１７】光ファイバー心線６は筐体内部のコネクタ
ーへスプライシングされる。この状態で締付け金具15を
装置本体金具16にネジ15Ａ，16Ａで締結すると、パッキ
ン13はパッキン押えリングを通して圧縮され、装置本体
金具16とケーブル外皮の隙間を無くし、さらに適当な圧
力で密着して防水構造となる。The optical fiber core wire 6 is spliced to a connector inside the housing. In this state, when the tightening fitting 15 is fastened to the device body fitting 16 with the screws 15A and 16A, the packing 13 is compressed through the packing holding ring, eliminating the gap between the device body fitting 16 and the cable outer skin, and further adhering with an appropriate pressure. It has a waterproof structure.
【００１８】さらに防水効果を確実にするためには、こ
の装置を２段、３段に重ねることも可能である。Further, in order to secure the waterproof effect, it is possible to stack the device in two stages or three stages.
【００１９】パッキン13の内径は予めケーブル径に合わ
せて制作してあり、さらにパッキン押えリング14は装置
本体金具16より脱落しないよう該装置本体の嵌込孔16Ｃ
に可動な状態で止められている。The inner diameter of the packing 13 is made in advance according to the cable diameter, and the packing holding ring 14 is fitted in the device body fitting 16 so that the packing holding ring 14 does not fall off.
It is stopped in a movable state.
【００２０】図２は、Ｏ／Ｅ受信器17に光ファイバーケ
ーブル３を導入した状態の斜視図を示し、図中、18は光
ファイバーケーブルの挿入口、19はＯ／Ｅ受信機17を支
持するメッセンジャワイヤーである。FIG. 2 is a perspective view showing a state in which the optical fiber cable 3 is introduced into the O / E receiver 17, in which 18 is an insertion port of the optical fiber cable and 19 is a messenger for supporting the O / E receiver 17. It is a wire.
【００２１】[0021]
【発明の効果】以上説明したように本発明の光ファイバ
ーケーブル防水装置は、光ファイバーケーブルが接続さ
れる機器に締結する装置本体と、円筒状のパッキンと、
締付け金具より構成され、パッキンは締付け金具により
内径方向に変形するように配置されることにより、締付
け金具の締結により、パッキンは本体と光ファイバーケ
ーブルに密着されて防水効果を簡単な作業と、簡易な部
品により達成することが出来る。As described above, the optical fiber cable waterproofing device of the present invention has a device body which is fastened to a device to which the optical fiber cable is connected, a cylindrical packing,
It is composed of a tightening metal fitting, and the packing is arranged so that it deforms in the inner diameter direction by the tightening metal fitting.By tightening the tightening metal fitting, the packing is in close contact with the main body and the optical fiber cable, and the waterproof effect is simple and easy. It can be achieved by parts.
【図１】本発明の一実施例に係る光ファイバーケーブル
防水装置の組立状態図及び要部の拡大図である。FIG. 1 is an assembled state view and an enlarged view of a main part of an optical fiber cable waterproof device according to an embodiment of the present invention.
【図２】本発明が使用されるＯ／Ｅ受信機と光ファイバ
ーケーブルの設置状態を示す斜視図である。FIG. 2 is a perspective view showing an installed state of an O / E receiver and an optical fiber cable in which the present invention is used.
【図３】従来の光ファイバーケーブル防水装置の構造を
示す図である。FIG. 3 is a diagram showing a structure of a conventional optical fiber cable waterproof device.
１…機器筐体、 １Ａ…装着孔、 13…パッキン、 14
…パッキン押えリング、15…締付け金具、 15Ａ，16Ａ
…ネジ、 16…装置本体金具、 20…Ｏリング。1 ... Equipment housing, 1A ... Mounting hole, 13 ... Packing, 14
… Packing retainer ring, 15… Tightening fittings, 15A, 16A
… Screws, 16… Device body fittings, 20… O-rings.
Claims (1)
機器筐体側に外部との防止用の部材を内装した装置本体
金具と、該装置本体金具の防水用の部材を圧縮密着して
螺合締結する締付け金具とを有し、両金具の中心部は光
ファイバーケーブルを挿通するための貫通孔を有するこ
とを特徴とする光ファイバーケーブル防水装置。Claims: 1. A device main body metal fitting in which a member for preventing external connection is internally provided on the equipment housing side to which an optical fiber cable is introduced and connected, and a waterproof member of the device main body metal fitting are compressed and closely attached. An optical fiber cable waterproofing device, characterized in that it has a tightening metal fitting that is screwed and fastened, and a central portion of both metal fittings has a through hole for inserting an optical fiber cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16688091A JPH0511124A (en) | 1991-07-08 | 1991-07-08 | Waterproofing device for optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16688091A JPH0511124A (en) | 1991-07-08 | 1991-07-08 | Waterproofing device for optical fiber cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0511124A true JPH0511124A (en) | 1993-01-19 |
Family
ID=15839332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16688091A Pending JPH0511124A (en) | 1991-07-08 | 1991-07-08 | Waterproofing device for optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0511124A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0787413A (en) * | 1993-09-10 | 1995-03-31 | Sony Corp | Receiver |
| JP2008027651A (en) * | 2006-07-19 | 2008-02-07 | Jimbo Electric Co Ltd | Optical/coaxial complex receptacle |
| JP2013050653A (en) * | 2011-08-31 | 2013-03-14 | Miharu Communications Co Ltd | Housing for catv apparatus and catv apparatus using the same |
-
1991
- 1991-07-08 JP JP16688091A patent/JPH0511124A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0787413A (en) * | 1993-09-10 | 1995-03-31 | Sony Corp | Receiver |
| JP2008027651A (en) * | 2006-07-19 | 2008-02-07 | Jimbo Electric Co Ltd | Optical/coaxial complex receptacle |
| JP2013050653A (en) * | 2011-08-31 | 2013-03-14 | Miharu Communications Co Ltd | Housing for catv apparatus and catv apparatus using the same |
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