JPS6019105A - Watertight piercing part of pressure resisting vessel of optical fiber - Google Patents
Watertight piercing part of pressure resisting vessel of optical fiberInfo
- Publication number
- JPS6019105A JPS6019105A JP12693183A JP12693183A JPS6019105A JP S6019105 A JPS6019105 A JP S6019105A JP 12693183 A JP12693183 A JP 12693183A JP 12693183 A JP12693183 A JP 12693183A JP S6019105 A JPS6019105 A JP S6019105A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- optical fiber
- watertight
- pressure
- wall
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
- G02B6/4428—Penetrator systems in pressure-resistant devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
この発明は、光ファイバの耐圧容器水密貫通部に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a watertight penetration section of an optical fiber into a pressure-resistant container.
（ロ）従来技術とその問題点
近年、深海の開発技術が盛んに推進されているが、その
中で深海中の電子機器と海上の母船間の計測制御信号の
送受信用線路として、軽量、細径であり、かつ大量のデ
ータを長距離にわたり無中継送信可能な光ファイバを用
いることが考えられている。(b) Conventional technology and its problems In recent years, deep-sea development technology has been actively promoted. It is being considered to use optical fibers that have a large diameter and are capable of transmitting large amounts of data over long distances without repeating.
光ファイバを用いる場合の一つの問題は、深海中の電送
機器（光電変換器）と光ファイバとの接続構造である。One problem when using optical fibers is the connection structure between deep-sea power transmission equipment (photoelectric converters) and optical fibers.
すなわち、光電変換器は耐圧・容器内に収納されを流し
込みこれを固化するようにしたものであるから、光ファ
イバ２は接着剤３の接着力のみて保持され、光ファイバ
２を締伺ける方向の力が作用しない。In other words, since the photoelectric converter is housed in a pressure-resistant container and is poured and solidified, the optical fiber 2 is held only by the adhesive force of the adhesive 3, and the optical fiber 2 is held in the direction in which it can be tightened. force does not work.
そのため、高水圧が作用すると、光ファイバ２の界面に
おいて剥離が生じ易く、水密性低下の原因になるととも
に、光ファイバ２が貫通部端末又はその内部で屈曲した
り、折曲がったりすることがあり、光伝送損失が増大す
る原因となる。Therefore, when high water pressure is applied, peeling is likely to occur at the interface of the optical fiber 2, causing a decrease in watertightness, and the optical fiber 2 may be bent or bent at the end of the penetration part or inside it. , which causes an increase in optical transmission loss.
そこで、この発明は、光ファイバの耐圧容器水密貫通部
における上記の問題点を解決し、高水圧下におけろ水密
性に優れ、かつ光伝送損失の少ない貫通部の構造を捺供
することを目的とするものである。Therefore, the purpose of this invention is to solve the above-mentioned problems in the watertight penetration part of an optical fiber pressure vessel, and to provide a structure for the penetration part that has excellent watertightness under high water pressure and has low optical transmission loss. That is.
（ハ）問題点を解決するための手段
上記の目的を達成するために、この発向は光フ盤に挿通
した光ファイバの周りに硬化型樹脂接着ヲ″すり得る程
度に硬化するものである。(c) Means for solving the problem In order to achieve the above purpose, this direction is to cure the hardening resin adhesive to the extent that it can be applied around the optical fiber inserted into the optical board. .
したがって、水圧か受圧盤を介して外心体内周孔内の硬
化した樹脂接着剤に作用すると、軸方向だけでなく、半
径方向にも圧力が作用するため、その内部を通過する光
ファイバに締付力が作用する。Therefore, when water pressure acts on the hardened resin adhesive in the circumferential hole of the exocentric body through the pressure receiving plate, pressure acts not only in the axial direction but also in the radial direction, tightening the optical fiber passing through the inside. Applying force acts.
に） 第−実施例
第２図に示した第１実施例の場合は、耐圧容器の壁４に
シール材５を介して中心金具６を挿入し、中心金具６の
一端に段部７をもった大径部８を形成している。大径部
８の中心には光ファイバ９より若干大きい径をもった貫
通孔１０を設け、大径部８の端面中央に設けたガイド用
突起１１に上記貫通孔１０を延長して形成している。ま
た、貫通孔１０の容器側端部を大径に形成し、硬化型樹
脂接着剤１２の流し込みを容易にしている。上記の中心
金具６はその段部７を壁４に係合して取付は周孔１５を
有する。上記凹所１４を中心金具６の矢貧部８にねじ嵌
合した際、凹所１４の底面は大）
径部８の端面に当接し、内周孔１５が閉塞される。In the case of the first embodiment shown in FIG. 2, the center metal fitting 6 is inserted into the wall 4 of the pressure container through the sealing material 5, and a step 7 is provided at one end of the center metal fitting 6. A large diameter portion 8 is formed. A through hole 10 having a diameter slightly larger than the optical fiber 9 is provided at the center of the large diameter portion 8, and the through hole 10 is formed by extending into a guide protrusion 11 provided at the center of the end surface of the large diameter portion 8. There is. Further, the end of the through hole 10 on the container side is formed to have a large diameter to facilitate pouring of the curable resin adhesive 12. The center fitting 6 has a peripheral hole 15 for mounting by engaging the stepped portion 7 with the wall 4. When the recess 14 is screw-fitted into the thin-arrow portion 8 of the center fitting 6, the bottom surface of the recess 14 comes into contact with the end surface of the large diameter portion 8, and the inner circumferential hole 15 is closed.
また内周孔１５の内周面にはねじ溝等の凹凸条１６が形
成され、内部に充填された硬化型樹脂接着剤１２の接着
力を向上させている。In addition, an uneven strip 16 such as a thread groove is formed on the inner circumferential surface of the inner circumferential hole 15 to improve the adhesive strength of the curable resin adhesive 12 filled inside.
」−記内周孔１５の開放側端部には、受圧盤１８が挿入
される。受圧盤１８は、光ファイノく９を挿通するため
、これより若干径の大きい貫通孔１９を有し、内周孔１
５と反対側・＼突出した突起部加と、貫通孔１９に挿通
した光ファイノ（９との間に熱収縮チューブ２１を被覆
し、端末の固定と保護を行なう。A pressure receiving plate 18 is inserted into the open end of the inner circumferential hole 15. The pressure receiving plate 18 has a through hole 19 with a slightly larger diameter in order to insert the optical fiber 9 through the inner peripheral hole 1.
A heat shrink tube 21 is covered between the protruding protrusion on the opposite side 5 and the optical fiber (9) inserted into the through hole 19 to fix and protect the terminal.
上記の中心金具６、外筒体１３、受圧盤１８は、耐食性
の高い高強度金属、例えばステンレススチール（ＳＵＳ
３１６）を用い、熱収縮チューブ２１は耐水性のものを
用いる。また、樹脂接着剤１２としては常温硬化型のも
のを用いることか望ましい。The center metal fitting 6, the outer cylindrical body 13, and the pressure receiving plate 18 are made of high-strength metal with high corrosion resistance, such as stainless steel (SUS).
316), and the heat shrink tube 21 is water resistant. Further, it is preferable to use a room temperature curing type resin adhesive 12.
なお、上記接続部の組立は、次の順序によると（４）
外筒体１３の内周孔１５に樹脂接着剤１２を注入する。In addition, the assembly of the above connection part is according to the following order (4)
The resin adhesive 12 is injected into the inner peripheral hole 15 of the outer cylinder 13.
（５）受圧盤１８を内周孔１５に挿入する。受圧盤１８
の挿入により、その貫通孔１９にも樹脂接着剤１２が充
填され、硬化する。(5) Insert the pressure receiving plate 18 into the inner peripheral hole 15. Pressure receiving panel 18
By inserting the resin adhesive 12, the through hole 19 is also filled with the resin adhesive 12 and hardened.
（６）受圧盤１８の突起部２０と光ファイバ９との間に
熱収縮チューブ２１を被せる。(6) A heat shrink tube 21 is placed between the protrusion 20 of the pressure receiving plate 18 and the optical fiber 9.
（７） 中心金具６を壁４の孔に挿入する。(7) Insert the center metal fitting 6 into the hole in the wall 4.
以上のようにして組立てられた水密貫通部においては、
水圧か受圧盤１８を介して内周孔１５内の樹脂接着剤１
２に作用する。In the watertight penetration part assembled as described above,
Resin adhesive 1 in inner peripheral hole 15 through water pressure or pressure receiving plate 18
It acts on 2.
なお、図示の受圧盤１８は、外筒体１３に対して係合又
は固定されていないが、これを外筒体１３に固定し、受
圧盤１８に設けた穴や、貫通孔１９と光ファイバ９との
間隙から水圧が作用するようにしてもよい。Note that the illustrated pressure receiving plate 18 is not engaged with or fixed to the outer cylinder 13, but it is fixed to the outer cylinder 13 and the holes provided in the pressure receiving plate 18 and the through holes 19 are connected to the optical fiber. The water pressure may be applied from the gap between 9 and 9.
増加量を試験した結果であり、伝送損失の増加はほと１
んどないことかわかる。This is the result of testing the amount of increase, and the increase in transmission loss is approximately 1
I know it's a pain.
１゜１２ケ０
、、次７・第４図′′示す第２実施例（１・４本０光７
アイバ９を挿通するものであり、中心金具６及び受圧盤
１８に、それぞれ４本の貫通孔１０．１９を設け、袋ナ
ツト２３をこれにねし結合するとともに、その一端を外
筒体１３の外周に設けた突条２４に係合し、また外筒体
１３の端部に袋ナツト２３の抜は落ち防止用のナツト２
５をねし結合している。1゜12 digits 0,,Next 7.The second embodiment shown in Fig. 4'' (1.4 lines 0 light 7
Four through holes 10 and 19 are provided in each of the center metal fitting 6 and the pressure receiving plate 18, and a cap nut 23 is screwed into these, and one end thereof is inserted into the outer cylindrical body 13. A nut 2 is provided at the end of the outer cylindrical body 13 to prevent the cap nut 23 from falling when the nut 23 is pulled out.
5 are tied together.
この場合の組立順序は、第１実施例の場合と同様にして
中心金具６を壁４の孔に挿入したのち、袋ナツト２３を
ねじ嵌合し、ナツト２５を締めることにより行なわれる
。The assembly order in this case is similar to that of the first embodiment, by inserting the center fitting 6 into the hole in the wall 4, then screwing the cap nut 23, and tightening the nut 25.
第６図は第２実施例の場合の試験結果てあり、６００気
圧に近付くと伝送損失が増加する傾向にあるが、実用上
差し支えない程度である。FIG. 6 shows the test results for the second embodiment. Although the transmission loss tends to increase as the pressure approaches 600 atm, it is of a level that poses no problem in practical use.
（へ）効果
るよ−うにしたから、光フアイバ界面における剥離が生
じ難い。そのため、高圧下における水密性か(f) Since it is made to be effective, peeling at the optical fiber interface is less likely to occur. Therefore, watertightness under high pressure
第１図は従来の水密貫通部の断面図、第２図は第１実施
例の断１ｆｉ図、第３図は第１実施例の静水圧試験結果
を示すグラフ、第４図は第２実施例の断面図、第５図は
第４図のＩＶ −ＩＶ線の断面図、第６図は第２実施例
の静水圧試験結果を示すグラフである。
４・・・耐圧容器の壁、６・・・中心金具、８・・・大
径部、９・・・光ファイバ、１０・・・貫通孔、１２・
・・硬化型樹脂接着剤、１３・・・外筒体、１４・・・
凹所、１５・・・内周孔、１８・・・受圧盤、１９・・
・貫通孔性１在出願人 工業技術院長用 田裕部第１図
第３図
圧ノＪＩＡ４／ｒ：ｒｎ
第４図
第５図
−２４−’
第６図
圧 力ｉ、、 ｋＱ／ｃｍ’ １Fig. 1 is a sectional view of a conventional watertight penetration part, Fig. 2 is a cross-sectional view of the first embodiment, Fig. 3 is a graph showing the hydrostatic pressure test results of the first embodiment, and Fig. 4 is a graph showing the results of the second embodiment. FIG. 5 is a cross-sectional view taken along line IV--IV in FIG. 4, and FIG. 6 is a graph showing the hydrostatic pressure test results of the second example. 4... Wall of pressure container, 6... Center metal fitting, 8... Large diameter part, 9... Optical fiber, 10... Through hole, 12...
... Curing resin adhesive, 13... Outer cylinder body, 14...
Recess, 15...Inner peripheral hole, 18...Pressure plate, 19...
・Through hole property 1 Applicant for the Director of the Agency of Industrial Science and Technology Hirobe Ta
Claims (1)
心金具を耐圧容器の壁に水密を保持して挿通し、上記中
心金具の壁外突出部分に上記貫通孔より大径の内周孔を
有する外筒体を同意状態イバの耐圧容器水密貫通部。 ｆ２ｉ ４二記中心金具と受圧盤にそれぞれ対向した複
数の貫通孔を設け、各貫通孔に光ファイバを挿通してな
る特許請求の範囲第１項に記載の光ファイバの耐圧容器
水密貫通部。(1) A center metal fitting with a through hole approximately equal to the outer diameter of the optical fiber is inserted into the wall of the pressure container while keeping it watertight, and the protrusion outside the wall of the center metal fitting has an inner diameter larger than the through hole. The outer cylindrical body with a hole is a watertight penetration part of the pressure vessel. f2i 4. The watertight penetrating portion for an optical fiber in a pressure vessel according to claim 1, wherein a plurality of through holes are provided in the central metal fitting and the pressure receiving plate, respectively, facing each other, and an optical fiber is inserted into each through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12693183A JPS6019105A (en) | 1983-07-14 | 1983-07-14 | Watertight piercing part of pressure resisting vessel of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12693183A JPS6019105A (en) | 1983-07-14 | 1983-07-14 | Watertight piercing part of pressure resisting vessel of optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6019105A true JPS6019105A (en) | 1985-01-31 |
| JPH0381124B2 JPH0381124B2 (en) | 1991-12-27 |
Family
ID=14947439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12693183A Granted JPS6019105A (en) | 1983-07-14 | 1983-07-14 | Watertight piercing part of pressure resisting vessel of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019105A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0206943A2 (en) * | 1985-06-24 | 1986-12-30 | Schlumberger Limited | Fiber optic connector assembly |
| JPS6266206A (en) * | 1985-09-19 | 1987-03-25 | Agency Of Ind Science & Technol | Pressure-proof container watertight penetrating part for multi-core twist optical fiber cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54146641A (en) * | 1978-05-09 | 1979-11-16 | Kokusai Denshin Denwa Co Ltd | Device for introducing optical fiber of optical sea bottom repeater |
| JPS5515116A (en) * | 1978-07-18 | 1980-02-02 | Kokusai Denshin Denwa Co Ltd <Kdd> | Feed-through of optical fiber |
| JPS5796405U (en) * | 1980-12-02 | 1982-06-14 |
-
1983
- 1983-07-14 JP JP12693183A patent/JPS6019105A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54146641A (en) * | 1978-05-09 | 1979-11-16 | Kokusai Denshin Denwa Co Ltd | Device for introducing optical fiber of optical sea bottom repeater |
| JPS5515116A (en) * | 1978-07-18 | 1980-02-02 | Kokusai Denshin Denwa Co Ltd <Kdd> | Feed-through of optical fiber |
| JPS5796405U (en) * | 1980-12-02 | 1982-06-14 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0206943A2 (en) * | 1985-06-24 | 1986-12-30 | Schlumberger Limited | Fiber optic connector assembly |
| JPS6266206A (en) * | 1985-09-19 | 1987-03-25 | Agency Of Ind Science & Technol | Pressure-proof container watertight penetrating part for multi-core twist optical fiber cable |
| JPH0375843B2 (en) * | 1985-09-19 | 1991-12-03 | Kogyo Gijutsuin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0381124B2 (en) | 1991-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4345816A (en) | Optical fiber introducing equipment for optical submerged repeater | |
| FI84769C (en) | FOERBINDNINGSBOX FOER KABLAR. | |
| JPH0451803B2 (en) | ||
| JP2000059979A (en) | Seal for sub-marine cable joint | |
| JPS6019105A (en) | Watertight piercing part of pressure resisting vessel of optical fiber | |
| CN111030006A (en) | Cross-cabin connection waterproof device for underwater fragile uncut cable | |
| JP3462623B2 (en) | Partially liquid-tight structure of multi-strand cable consisting of PC steel strands | |
| JPS6019113A (en) | Connector in watertight piercing part of pressure resisting vessel of optical fiber | |
| GB2074395A (en) | Seals of cable cores to cable glands | |
| JPS5811906A (en) | Clamping part of nonmetallic optical cable incorporated with optical fiber core coated with frp | |
| GB2056191A (en) | Improvements in, or relating to, cable seals | |
| JPH11172672A (en) | Waterproof tension method and device for ground anchor | |
| JPH0440299Y2 (en) | ||
| JPS585413B2 (en) | Undersea repeater body | |
| JPH04151105A (en) | Length-wise waterproofing apparatus for optical cable core | |
| JPS6053292B2 (en) | Sealed termination structure of submarine optical cable | |
| JPS583B2 (en) | Introduction structure of optical fiber to repeater | |
| JPS6266206A (en) | Pressure-proof container watertight penetrating part for multi-core twist optical fiber cable | |
| KR940006798Y1 (en) | Pipe connector | |
| FI95091C (en) | Pressure proof sleeve | |
| US4621167A (en) | Submarine cable anchored to a repeater housing and method of assembly thereof | |
| FR2454038A3 (en) | Cable gland for pressurised containers - has screwed plug with inserted split joints closing on O=ring or packing | |
| KR880000386Y1 (en) | Connecting device of copper pipe | |
| JPH0132012Y2 (en) | ||
| US4150862A (en) | Termination for a reinforced plastic hose |