JPS60153005A - Connection part of optical fiber - Google Patents
Connection part of optical fiberInfo
- Publication number
- JPS60153005A JPS60153005A JP59009118A JP911884A JPS60153005A JP S60153005 A JPS60153005 A JP S60153005A JP 59009118 A JP59009118 A JP 59009118A JP 911884 A JP911884 A JP 911884A JP S60153005 A JPS60153005 A JP S60153005A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber cable
- core
- room temperature
- grease
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 101
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000004519 grease Substances 0.000 abstract description 12
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 230000035515 penetration Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- URRHWTYOQNLUKY-UHFFFAOYSA-N [AlH3].[P] Chemical compound [AlH3].[P] URRHWTYOQNLUKY-UHFFFAOYSA-N 0.000 description 1
- OEMGCAOEZNBNAE-UHFFFAOYSA-N [P].[Li] Chemical compound [P].[Li] OEMGCAOEZNBNAE-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
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)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は主として光フアイバケーブル同士、複数本の光
フアイバコード同士、或いは光フアイバケーブルと複数
本の光フアイバコードとの接続部に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention mainly relates to connections between optical fiber cables, between a plurality of optical fiber cords, or between an optical fiber cable and a plurality of optical fiber cords. .
一般に多芯光ファイバケーブルと夫々に各種の機器に繋
がる複数本の単芯光フアイバコードとを接続する場合、
光フアイバケーブル、光フアイバコードの被覆部材を切
り取って所要長の光ファイバを剥ぎ出して光ファイバの
端面同士を結合するが、このような接続部の機械的強度
、防水、防湿性、気密性を確保する方法として、例えば
第1図に示す如き技術が知られている(特公昭58−4
5685号)。第1図は従来の接続部を示す部分破砕図
であり、図中1は多芯の光フアイバケーブル、2はいず
れも単芯の光フアイバコードを示している。Generally, when connecting a multi-core optical fiber cable and multiple single-core optical fiber cords each connected to various devices,
The end faces of the optical fibers are joined by cutting the covering material of the optical fiber cable or optical fiber cord and stripping out the required length of optical fiber. For example, the technique shown in Figure 1 is known as a method for securing the
No. 5685). FIG. 1 is a partially exploded view showing a conventional connection part, in which numeral 1 indicates a multi-core optical fiber cable, and numeral 2 indicates a single-core optical fiber cord.
光フアイバケーブル11各光フアイバコード2からは夫
々被覆部材を切り取って所要長の光ファイバla、 l
b・・・、2a、2b・・・の端部を剥ぎ出し、光ファ
イバla、2a等はその端面同士を芯合わせ結合し、各
結合部には補強スリーブ3a、3b・・・を外嵌固定し
である。また補強スリーブ3a、3b・・・と各光フア
イバコード2の端部とにわたして各光フアイバコード2
から剥ぎ出した光ファイバ2a、2b・・・を覆ってビ
ニール製のチューブ4を被せ、各光フアイバコード2の
端末からコード内部を通り接続面内への湿気、水等の侵
入を防止すると共に、光ファイバを剥ぎ出した光フアイ
バコード2の端部近傍は光ファイバコード2全部を集束
した状態で合成樹脂により団結させて固定部5を形成し
、この固定部5と光フアイバケーブル1の端部とに筒状
のサポータ6を渡して光フアイバケーブル1、光ファイ
ハコ−1′2の被覆部利端部、テンションメンバ7、光
ファイバla、2a等の剥ぎ出し基部を覆い、更にこの
サポータ6、光ファイバla、2a・・・、補強スリー
ブ3a、3b・・・を覆って光フアイバケーブル1から
固定部5にわたして保護スリーブ8a、8bを被せ、保
護スリーブ8a、8b端部から光フアイバケーブル1、
固定部5にわノこして、また保護スリーブ8a、8bの
山き合−L部にわたして、夫々テープ状シール材9a、
9b、9cを巻着し、保護スリーブ8a、Bb内を気密
状態とし、内部に乾燥ガスを注入して水、湿気の侵入を
防止するようにしである。Optical fiber cable 11 The coating material is cut off from each optical fiber cord 2 to create optical fibers la, l of required length.
The ends of b..., 2a, 2b... are stripped, and the end surfaces of optical fibers la, 2a, etc. are aligned and coupled together, and reinforcing sleeves 3a, 3b... are externally fitted to each coupling part. It is fixed. In addition, each optical fiber cord 2 is passed between the reinforcing sleeves 3a, 3b, . . .
A vinyl tube 4 is placed over the optical fibers 2a, 2b, etc., which have been stripped from the fibers, to prevent moisture, water, etc. from entering from the terminal of each optical fiber cord 2 through the inside of the cord and into the connecting surface. Near the end of the optical fiber cord 2 from which the optical fibers have been stripped, all the optical fiber cords 2 are bundled and united with synthetic resin to form a fixed part 5, and the fixed part 5 and the end of the optical fiber cable 1 are connected together. A cylindrical supporter 6 is passed between the parts to cover the exposed bases of the optical fiber cable 1, the coated end of the optical fiber box 1'2, the tension member 7, the optical fibers la, 2a, etc., and the supporter 6 , the optical fibers la, 2a..., reinforcing sleeves 3a, 3b... are covered with protective sleeves 8a, 8b extending from the optical fiber cable 1 to the fixed part 5, and the optical fibers are inserted from the ends of the protective sleeves 8a, 8b. cable 1,
Tape-shaped sealing materials 9a, 9a and 9a are applied to the fixing portion 5 and across the L portions of the protective sleeves 8a and 8b, respectively.
9b and 9c are wrapped around each other to make the inside of the protective sleeve 8a and Bb airtight, and dry gas is injected into the inside to prevent water and moisture from entering.
ところでこのような従来方法では各光フアイバコート2
の端部近傍を束ねて合成444脂によりモールドする構
成となっているため、各光フアイバコード2間の隙間を
封止し得る反面、各光フアイバコード2を集束状態に団
結するために合成樹脂を光フアイバコード2を配した型
内に注入して固化せしめる必要があり、合成樹脂の固化
過程では収縮を避けることが出来ず、各光フアイバコー
ド2の光ファイバにマイクロヘンドを発生させて光伝送
損失を著しく増大させ、また亀裂が発生し易く、湿気の
侵入を招くこともあるなどの問題があり、更にガス保守
が煩雑であるばかりでなく、接続面を気密構造にしなけ
ればならないため、接続面のニストアンプを避けられな
いという問題もあった。By the way, in such a conventional method, each optical fiber coat 2
Since the ends of the optical fiber cords 2 are bundled together and molded with synthetic 444 resin, the gaps between each optical fiber cord 2 can be sealed. It is necessary to inject the resin into a mold in which the optical fiber cords 2 are placed and allow it to solidify, and shrinkage cannot be avoided during the solidification process of the synthetic resin, causing microhends in the optical fibers of each optical fiber cord 2. There are problems such as significantly increasing optical transmission loss, cracks are likely to occur, and moisture may enter.Furthermore, gas maintenance is complicated, and the connection surface must be made airtight. There was also the problem of unavoidable noise amplifiers on the connection side.
本発明はかかる事情に鑑みなされたものであって、その
目的とするところは光ファイバの被覆部材と保護スリー
ブとの間の間隙、及び/又は光ファイバとその被覆部材
との間の隙間等被覆部祠から剥ぎ出した光ファイバの周
囲空間に連なる隙間内に、稠性を有する充填材を充填し
て光ファイバにマイクロヘンドを生じさセることなく、
しかも確実な防水機能を得られるようにした光ファイバ
の接続部を提供するにある。The present invention has been made in view of the above circumstances, and its purpose is to cover the gap between the optical fiber coating member and the protective sleeve, and/or the gap between the optical fiber and its coating member. By filling the gap connected to the surrounding space of the optical fiber stripped from the shank with a filler having consistency, without causing microhends in the optical fiber,
Moreover, it is an object of the present invention to provide an optical fiber connection part that can provide a reliable waterproof function.
光ファイバの結合部及びこれに連なる被覆部材からq1
■ぎ出されている部分の光ファイノXの周囲空間内、又
は該周囲空間を通して被覆部材内への水分の侵入を防止
すべく、周囲空間に通ずる空隙中に、ASTMD〜21
7で測定した常温におりる混和稠度が85〜475の充
填材を充填したことを特徴とする。q1 from the optical fiber coupling part and the covering member connected thereto
(2) In order to prevent moisture from entering into the surrounding space of the optical fin
It is characterized by being filled with a filler having a mixing consistency of 85 to 475 at room temperature as measured in No. 7.
以下本発明を多芯の光フアイバケーブルと小芯の光フア
イバコートとの接続部に適用した構成につき具体的に説
明する。第2図は本発明に係る光ファイバの接続部(以
下本発明接続部という)を示す部分破砕図であり、図中
11は多芯の光フアイバケーブル、12はいずれも単芯
の光フアイバコードであって多数本を束ねである。13
は補強スリーブ、14はチューブ、15はテンションメ
ンバ、16は保護スリーブを示している。光ファイハゲ
ープル11の端部はその複数の?ti +v ffi
’rAを切り取って夫々押え巻きテープllnを被った
光ファイバ多芯ユニットを所要長剥ぎ出し、更に各ユニ
ットはその押え巻きテープllnを含む被覆部材を切り
取って夫々光ファイバlla、 llb・・・を所要長
剥ぎ出し、一方各光フアイバコード12はその被覆部材
を切り取って所要長の光ファイバ12a、12b・・・
を剥ぎ出し、各光ファイバ11a+12a 、11b+
12b 、はその端面同士を相互に芯合わせした状態で
溶融結合され、各結合部は補強スリーブ13を外嵌した
状態で一体に固定され、また相互のテンションメンバ1
5も何らかの手段により接続面内に固定されており、こ
の構成は第1図に示す従来の構成と略同じである。Hereinafter, a configuration in which the present invention is applied to a connection portion between a multi-core optical fiber cable and a small-core optical fiber coat will be specifically explained. FIG. 2 is a partially exploded view showing a connecting part of an optical fiber according to the present invention (hereinafter referred to as the connecting part of the present invention), in which 11 is a multi-core optical fiber cable, and 12 is a single-core optical fiber cord. It is a bundle of many books. 13
14 is a reinforcing sleeve, 14 is a tube, 15 is a tension member, and 16 is a protective sleeve. The ends of the optical fiber cable 11 are connected to the plurality of ends. ti+vffi
'rA is cut and each optical fiber multi-core unit covered with a pressure winding tape lln is stripped out to a required length, and the covering member including the pressure winding tape lln is cut off from each unit to form optical fibers lla, llb, etc., respectively. The required length of each optical fiber cord 12 is stripped, and the coating material of each optical fiber cord 12 is cut off to form optical fibers 12a, 12b, etc. of the required length.
Strip out each optical fiber 11a+12a, 11b+
12b are melt-bonded with their end surfaces aligned with each other, and each joint is fixed integrally with a reinforcing sleeve 13 fitted on the outside, and each tension member 1
5 is also fixed within the connecting surface by some means, and this configuration is approximately the same as the conventional configuration shown in FIG.
各光フアイバケーブルllから剥ぎ出しであるユニメト
にはその押え巻きテープllnに、該押え巻きテープl
lnから光ファイバlla、llb・・・にわたるよう
ムこ、また各光フアイバコート12の被覆部材にはこの
被覆部材から光ファイバ12a、12b・・・にわたる
ように合成樹脂製のチューブ14を外嵌し、夫々チュー
ブ14内に充填材14aを注入して押え巻きテープIl
nと光ファイバlla、llb・・・との間の間隙及び
被覆部材と光ファイバ12a、12b・・・との間の間
隙を水密封止せしめである。充填材14aは後述する如
くグリース又はこれに水分吸収剤を混入せしめた稠性を
有する物質である。For Unimet, which is exposed from each optical fiber cable ll, attach the presser winding tape ln to the presser winding tape ln.
A tube 14 made of synthetic resin is fitted onto the covering member of each optical fiber coat 12 so as to extend from the covering member to the optical fibers 12a, 12b, . . . Then, filler material 14a is injected into each tube 14, and the tape Il is pressed and wound.
The gaps between N and the optical fibers lla, llb, . . . and the gaps between the coating member and the optical fibers 12a, 12b, . The filler 14a is a viscous substance made of grease or a moisture absorbent mixed therein, as will be described later.
保護スリーブ16は金属製で円筒状に形成され、中間部
は大径に、両端部は夫々光フアイバケーブル11、束ね
た状態の光フアイバコード12の各直径よりも若干大き
い程度に縮径し、この各縮径した両端の円筒部16a、
16bの内端側周面にば夫々内鍔16cを備えている
。The protective sleeve 16 is made of metal and has a cylindrical shape, with a large diameter at the middle part and a reduced diameter at both ends to be slightly larger than the respective diameters of the optical fiber cable 11 and the bundled optical fiber cord 12. The cylindrical portions 16a at both ends are each reduced in diameter,
An inner collar 16c is provided on the inner circumferential surface of each of the inner flanges 16b.
保護スリーブ16は光ファイバlla、 llb、 I
lc・・・、12a、 i2b、 12c・・・及びこ
れらの結合部に固定した補強スリーブ13、チューブ1
4を覆った状態で一端側の円筒部16aは光フアイバケ
ーブル11の端部外周に、また他端例の円筒部16.J
+は束ねた状態の光フアイバコード12の端部外周に夫
々外嵌されている。The protective sleeve 16 protects the optical fibers lla, llb, I
lc..., 12a, i2b, 12c... and the reinforcing sleeve 13 and tube 1 fixed to their joints
4, the cylindrical portion 16a at one end is attached to the outer periphery of the end of the optical fiber cable 11, and the cylindrical portion 16a at the other end is attached to the outer periphery of the end of the optical fiber cable 11. J
+ is fitted around the outer periphery of the end of the bundled optical fiber cord 12, respectively.
光フアイバケーブル11、束ねた光フアイバコード12
の外周には夫々軸長方向に所要の間隔を隔てて一対の鍔
17a、17b 、 18a、18bを外嵌固定してあ
り、前記保護スリーブ16の両回筒部16a、16bは
夫々鍔17a、17b 、18a、18bにわたるよう
外嵌され、内鍔16c、 16cを鍔17b、 18b
に突き当てた状態で接着剤を用いて相互に固定されてい
る。Optical fiber cable 11, bundled optical fiber cord 12
A pair of flanges 17a, 17b, 18a, 18b are fitted and fixed on the outer periphery of each of the protective sleeves 17a, 17b, 18a, 18b at a required interval in the axial direction. 17b, 18a, 18b, and the inner tsuba 16c, 16c is fitted over the tsuba 17b, 18b.
They are fixed to each other using adhesive while facing each other.
鍔17a、17b 、18a、18bはいずれも合成樹
脂製であって、円盤状をなし、その中心部には光フアイ
バケーブル11、束ねた状態の光フアイバコード12の
直径と略等しい6孔17c、 18cを備え、この6孔
17c、 18cを光フアイバケーブル11、束ねた状
態の光フアイバコード12に挿通し、接着剤にて各被覆
部材に固定されている。なおこの鍔17a、 17b、
18a、 18bは狭幅のテープを夫々光フアイバケー
ブル11、束ねた光フアイバコード12に重複して巻回
せしめることによって形成してもよい。The collars 17a, 17b, 18a, and 18b are all made of synthetic resin and have a disk shape, and in the center thereof there are six holes 17c that are approximately equal to the diameter of the optical fiber cable 11 and the optical fiber cord 12 in the bundled state. 18c, and the optical fiber cable 11 and the bundled optical fiber cord 12 are inserted through these six holes 17c and 18c, and fixed to each covering member with an adhesive. Furthermore, this guard 17a, 17b,
The tapes 18a and 18b may be formed by wrapping narrow tapes around the optical fiber cable 11 and the bundled optical fiber cord 12, respectively.
そして両鍔17a、17b 、 18a、18b及び保
護スリーブ16の円筒部16a、 16bで周囲を囲わ
れた空間内にはこれらの空間及び光フアイバコード12
相互の間の空隙内軒充填材19が各円筒部16a、16
bに穿った孔16d、16dを通して注入充填されてい
る。20a 、 20bは各円筒部16a、 16bと
光フアイバケーブル11、束ねた状態の光フアイバコー
ド12との間の隙間を封止すべく巻着したテープである
。なお保護スリーブ16内には乾燥空気が存在するのみ
である。These spaces and the optical fiber cord 12 are enclosed within the space surrounded by the flanges 17a, 17b, 18a, 18b and the cylindrical portions 16a, 16b of the protective sleeve 16.
The eave filling material 19 in the gap between each cylindrical portion 16a, 16
It is injected and filled through holes 16d, 16d drilled in b. Tapes 20a and 20b are wound to seal the gaps between the cylindrical portions 16a and 16b, the optical fiber cable 11, and the bundled optical fiber cord 12. Note that only dry air exists within the protective sleeve 16.
前述した充填物14a 、19としては常温で軟らかい
グリース単独又はこれに吸水性添加剤を混入したもので
あって、ASTMD−217で測定した常温での混和稠
度が85〜475、望ましくは120〜400程度のも
のが用いられる。混和稠度を85〜475としたのは8
5以下ではかた過ぎて充填作業のために高温度に加熱し
て流動性を増大させる必要があり、冷却過程で体積収縮
を伴い光ファイバにマイクロヘントを生しさせることと
なるからである。また混和稠度が475より大きいと、
流動性が過大となり接続部を傾斜さ−Uたとき、流動し
て空隙が形成され水密封止機能をtf4”Lうおそれが
あることによる。The aforementioned fillers 14a and 19 are greases that are soft at room temperature alone or mixed with water-absorbing additives, and have a mixing consistency at room temperature of 85 to 475, preferably 120 to 400, as measured by ASTM D-217. A certain degree is used. The mixing consistency was 85 to 475.
If it is less than 5, it will be too hard and it will be necessary to increase the fluidity by heating it to a high temperature for the filling operation, and the cooling process will cause volume contraction and cause microhents in the optical fiber. Also, if the mixing consistency is greater than 475,
This is because when the fluidity becomes excessive and the connection part is tilted, the fluid may flow and form voids, which may impair the watertight sealing function.
使用グリースとし°ζは例えばポリウレアグリース、リ
チウム石りんグリース、カルシウム石けんグリース、ア
ルミニウム石りんグリース、ベントングリース、複合ア
ルミニウム石けんグリース、複合カルシウム石けんグリ
ース等が用いられる。Examples of the grease used include polyurea grease, lithium phosphorus grease, calcium soap grease, aluminum phosphorus grease, benton grease, composite aluminum soap grease, and composite calcium soap grease.
また吸水性添加剤としてはアクリル酸性デンプン等のデ
ンプン−グラフト重合体、カルボキシメチルセルロース
、アクリルM重合体等の有機吸水性物質、シリカゲル、
生石灰等無機吸水性物質が用いられる。勿論グリース、
吸水性添加剤としては何ら上述のものにのみ限るもので
はなく、従来知られたものを適宜採択してよい。In addition, water-absorbing additives include starch-graft polymers such as acrylic acid starch, organic water-absorbing substances such as carboxymethyl cellulose and acrylic M polymer, silica gel,
Inorganic water-absorbing substances such as quicklime are used. Grease, of course.
The water-absorbing additive is not limited to those mentioned above, and any conventionally known additives may be used as appropriate.
上述の如く構成した本発明に係る接続部について保護ス
リーブ16の中央に孔を穿ち、ここにポリエチレン管を
接続し、1000鶴の高さに進水を満たして14日間放
置し、外部への漏水の有無を検査したが漏水は全くみら
れなかった。なお接続部の長さは850鳳鳳である。For the connection part according to the present invention constructed as described above, a hole is made in the center of the protective sleeve 16, a polyethylene pipe is connected thereto, and the water is filled to a height of 1,000 yen and left for 14 days to prevent water from leaking to the outside. I checked for the presence of water, but no water leakage was found. Note that the length of the connecting portion is 850 mm.
上述の実施例は多芯の光フアイバケーブルと複数の単芯
光フアイバコードとの接続部の構成につき説明したが、
複数の単芯又は複芯の光フアイバコード同士の接続部、
或いは光ファイバと動力線等の電気用導線との複合ケー
ブルと光フアイバコード、光フアイバケーブル、電気1
コード、電気ケーブルとの接続部等にも適用し得ること
は勿論である。In the above embodiment, the structure of the connecting portion between a multi-core optical fiber cable and a plurality of single-core optical fiber cords has been described.
Connections between multiple single-core or multi-core optical fiber cords,
Or a composite cable of optical fiber and electrical conductor such as power line, optical fiber cord, optical fiber cable, electricity 1
Of course, the present invention can also be applied to connection parts with cords, electric cables, etc.
実施例では保護スリーブ16の両端における円筒部16
a、 JGb内に夫々充填材19を注入する構成を説明
したが、片側は他の構成としてもよい。In the embodiment, the cylindrical portions 16 at both ends of the protective sleeve 16
Although the configuration in which the filler 19 is injected into each of a and JGb has been described, one side may have another configuration.
以上の如く本発明接続部にあっては相互に結合すべく、
被覆部材から剥ぎ出した光ファイバの周囲空間内又は光
ファイバと被覆部材との間への水/73の侵入を防止す
べく周囲空間に通じる空隙中に稠性を有する充填材を注
入せしめることとしたから、充填作業が容易となり、体
禎収縮がなく、また常温でやわらかいから、光ファイバ
にマイクロヘンドを生じさせることがなく、更に充填物
に亀裂が発生しないからこの亀裂を通しての水分の侵入
のおそれも全くない。そのうえ充填材は柔らかいため補
修作業等に際しても作業能率がよいなどの効果もある。As described above, in the connecting portion of the present invention, in order to connect to each other,
In order to prevent water/73 from entering into the space surrounding the optical fiber stripped from the coating member or between the optical fiber and the coating member, a filler having consistency is injected into the gap communicating with the surrounding space. Therefore, the filling process is easy, there is no physical shrinkage, and since it is soft at room temperature, it does not cause microhends in the optical fiber, and there are no cracks in the filling, which prevents moisture from entering through the cracks. There is no fear at all. Furthermore, since the filler is soft, it also has the effect of improving work efficiency during repair work and the like.
また接続面そのものを気密構造にする必要がないため、
保守が簡単であるばかりでなく、安価な接続面が構成出
来る。Also, since there is no need to make the connection surface itself airtight,
Not only is maintenance easy, but inexpensive connection surfaces can be constructed.
第1図は従来の光ファイバの接続部を示す部分破砕図、
第2図は本発明に係る光ファイバの接続部を示す部分破
砕図である。
11・・・光フアイバケーブル Ila、11b、11
c・・・光ファイバ 12・・・光フアイバコード 1
2a、 12b、 12c・・・光ファイバ13・・・
補強スリーブ 14・・・チューブ14a・・・充填材
15・・・テンションメンバ 16・・・保護スリーブ
I(ia、16b・・・円筒部 16c・・・内H1
7a、17b 518a、18b ・=&W 19−充
填材時 許 出願人 大日日本電線株式会社代理人 弁
理士 河 野 登 夫Figure 1 is a partially exploded view showing the connection part of a conventional optical fiber.
FIG. 2 is a partially exploded view showing a connecting portion of an optical fiber according to the present invention. 11... Optical fiber cable Ila, 11b, 11
c... Optical fiber 12... Optical fiber cord 1
2a, 12b, 12c...optical fiber 13...
Reinforcement sleeve 14...Tube 14a...Filler 15...Tension member 16...Protective sleeve I (ia, 16b...Cylindrical portion 16c...Inner H1
7a, 17b 518a, 18b ・=&W 19-When filling material Applicant Dainichi Nippon Cable Co., Ltd. Agent Patent attorney Noboru Kono
Claims (1)
れている部分の周囲空間内、又は該周囲空間を通じて被
覆部材内への水分の侵入を防止すべく、周囲空間に通ず
る空隙中をASTMD−217で測定した常温におりる
混和稠度が85〜475の充填材で充填したことを特徴
とする光ファイバの接続部。 2、前記充填材は吸水性添加剤を含む特許請求の範囲第
1項記載の光ファイバの接続部。[Claims] 1. In order to prevent moisture from entering into the covering member through the surrounding space of the exposed part of the covering member, including the optical fiber coupling part, or through the surrounding space, the surrounding space is 1. A connecting portion of an optical fiber, characterized in that a gap leading to the fiber is filled with a filler having a mixing consistency at room temperature of 85 to 475 as measured by ASTM D-217. 2. The optical fiber connection portion according to claim 1, wherein the filler contains a water-absorbing additive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59009118A JPS60153005A (en) | 1984-01-20 | 1984-01-20 | Connection part of optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59009118A JPS60153005A (en) | 1984-01-20 | 1984-01-20 | Connection part of optical fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60153005A true JPS60153005A (en) | 1985-08-12 |
Family
ID=11711715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59009118A Pending JPS60153005A (en) | 1984-01-20 | 1984-01-20 | Connection part of optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60153005A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4932744A (en) * | 1988-10-04 | 1990-06-12 | Communications Technology Corporation | Closure for optical fiber splice connectors |
EP0517417A2 (en) * | 1991-06-01 | 1992-12-09 | Nortel Networks Corporation | Cable joints and terminations |
EP1703308A1 (en) * | 2005-03-16 | 2006-09-20 | Institut Français du Pétrole | Device with hermetic feed-through for optical fibre |
-
1984
- 1984-01-20 JP JP59009118A patent/JPS60153005A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4932744A (en) * | 1988-10-04 | 1990-06-12 | Communications Technology Corporation | Closure for optical fiber splice connectors |
EP0517417A2 (en) * | 1991-06-01 | 1992-12-09 | Nortel Networks Corporation | Cable joints and terminations |
EP1703308A1 (en) * | 2005-03-16 | 2006-09-20 | Institut Français du Pétrole | Device with hermetic feed-through for optical fibre |
FR2883385A1 (en) * | 2005-03-16 | 2006-09-22 | Inst Francais Du Petrole | SEALED CROSSING DEVICE FOR OPTICAL FIBER |
US7400811B2 (en) | 2005-03-16 | 2008-07-15 | Institut Francais Du Petrole | Sealed feedthrough assembly for optical fiber |
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