JPH0440179Y2 - - Google Patents
Info
- Publication number
- JPH0440179Y2 JPH0440179Y2 JP1986126584U JP12658486U JPH0440179Y2 JP H0440179 Y2 JPH0440179 Y2 JP H0440179Y2 JP 1986126584 U JP1986126584 U JP 1986126584U JP 12658486 U JP12658486 U JP 12658486U JP H0440179 Y2 JPH0440179 Y2 JP H0440179Y2
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- optical fiber
- tape
- common
- shaped optical
- 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
- 239000011247 coating layer Substances 0.000 claims description 93
- 239000013307 optical fiber Substances 0.000 claims description 71
- 239000010410 layer Substances 0.000 claims description 21
- 239000011253 protective coating Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 5
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- SOGFHWHHBILCSX-UHFFFAOYSA-J prop-2-enoate silicon(4+) Chemical compound [Si+4].[O-]C(=O)C=C.[O-]C(=O)C=C.[O-]C(=O)C=C.[O-]C(=O)C=C SOGFHWHHBILCSX-UHFFFAOYSA-J 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、高密度な光通信などにおいて有利に
用いることのできる新規なテープ状光フアイバ心
線に関する。より詳細には、光フアイバ素線を効
果的に保護することができ、尚且つ接続の際等の
取り扱いが簡便な被覆層を備えた、新規なテープ
状光フアイバ心線に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a novel tape-shaped optical fiber core wire that can be advantageously used in high-density optical communications. More specifically, the present invention relates to a novel optical fiber ribbon having a coating layer that can effectively protect the optical fiber and is easy to handle during connection.
従来の技術
昨今の情報通信技術の進歩と共に、信号伝送の
高速化への要求が高まつている。このような高速
信号伝送技術を具現化したものとして、光通信技
術の実用化が挙げられる。即ち、光信号伝送は、
光自体の特性による高速伝送の実現と共に、伝送
路たる光フアイバが軽量であり、また磁界、電界
等の影響が少ない等の通信技術上での利点を備え
ている。しかしながら、このような光フアイバ伝
送路を以つてしても、依然としてより大量の信号
伝送への要求は残り、これに対応して信号伝送用
光フアイバについても各種の工夫が提案されてい
る。BACKGROUND ART With recent advances in information and communication technology, the demand for faster signal transmission is increasing. Practical use of optical communication technology is an example of the realization of such high-speed signal transmission technology. That is, optical signal transmission is
In addition to realizing high-speed transmission due to the characteristics of light itself, the optical fiber used as the transmission path is lightweight and has advantages in communication technology, such as being less affected by magnetic fields, electric fields, etc. However, even with such an optical fiber transmission line, there still remains a demand for transmitting a larger amount of signals, and in response to this, various improvements have been proposed for optical fibers for signal transmission.
このような背景に立脚して実現されたもののひ
とつにテープ状光フアイバ心線が挙げられる。即
ち、テープ状光フアイバ心線は、光導波路たる光
フアイバ素線を、共通被覆層によつて一体として
構成たもので、簡便な取り扱いで高密度信号伝送
を実現するものとして注目されている。 One of the products that was developed based on this background is the tape-shaped optical fiber core. That is, the tape-shaped optical fiber core is constructed by integrating optical fiber wires serving as optical waveguides with a common coating layer, and is attracting attention as a device that can realize high-density signal transmission with easy handling.
考案が解決すべき問題点
第３図は、上述のようなテープ状光フアイバ心
線の代表的な構成を示す断面図であり、各々に被
覆層２を備えた光伝送用ガラスフアイバ１を共通
被覆層３によつてテープ状に形成したものであ
る。尚、従来の技術においては、前述の被覆層２
並びに３は、例えば、共に紫外硬化性ウレタンア
クリレートを材料として形成していた。Problems to be Solved by the Invention Figure 3 is a cross-sectional view showing a typical configuration of the tape-shaped optical fiber core wire as described above. The cover layer 3 is formed into a tape shape. In addition, in the conventional technology, the above-mentioned coating layer 2
and No. 3 are both made of ultraviolet curable urethane acrylate, for example.
ところで、このテープ状光フアイバ心線を他の
部材、例えば通常の単芯コア光フアイバに接続す
る場合あるいは他のテープ状光フアイバ心線に接
続するような場合、テープ状のままであると扱い
難く、更に接続による伝送損失の増加等の問題も
あるので、前述の共通な被覆層３を除去して各素
線毎に処理を施す必要が生じる。ところが、従来
のテープ状光フアイバ心線では、被覆層を除去す
るという観点から被覆構造あるいは材料について
検討されることは殆どなかつた。 By the way, when this tape-shaped optical fiber is connected to another member, for example, a normal single-core optical fiber, or when connected to another tape-shaped optical fiber, it is treated as being in a tape-like state. Furthermore, since there are problems such as an increase in transmission loss due to the connection, it becomes necessary to remove the above-mentioned common coating layer 3 and process each strand individually. However, in conventional tape-shaped optical fiber core wires, the coating structure or material has hardly been studied from the viewpoint of removing the coating layer.
第３図に示した従来のテープ状光フアイバ心線
の場合では、第３図に示された断面の例えば左右
両端Ａ，A′で共通被覆層３を裂いて上下に２分
割し、共通被覆層３を除去することが普通に考え
られる。しかしながら、共通被覆層３は、各光フ
アイバ素線１の被覆層２の間隙に入り込んだ部分
を除けばその厚さは全周に亘つて実質的に均一で
あり、ある方向に単に引つ張つただけでは容易に
乖離できない。また、例えば共通被覆層の端部に
刃物等により切り目を入れてこれを起点に共通被
覆層を裂こうとしても、共通被覆層は光フアイバ
心線の長さ方向に避けるとは限らず、テープ状光
フアイバの共通被覆層の除去は大変煩雑な作業で
あつた。 In the case of the conventional tape-shaped optical fiber core shown in FIG. 3, the common coating layer 3 is torn at both left and right ends A and A' of the cross section shown in FIG. It is common to consider removing layer 3. However, the thickness of the common coating layer 3 is substantially uniform over the entire circumference, except for the portion that penetrates into the gap between the coating layers 2 of each optical fiber strand 1. It cannot be easily separated by just sticking to it. Furthermore, even if an attempt is made to tear the common coating layer by making a cut with a knife or the like at the end of the common coating layer and using this as a starting point, the common coating layer will not necessarily be avoided in the length direction of the optical fiber core, and the tape will Removal of the common coating layer of optical fibers is a very complicated process.
更に、共通被覆層３は、格別の処理をしない限
り各光フアイバ素線の被覆層２に圧接しているこ
とが多く、共通被覆層３の除去作業を更に困難な
ものとしていた。 Furthermore, the common coating layer 3 is often in pressure contact with the coating layer 2 of each optical fiber strand unless special treatment is performed, making removal of the common coating layer 3 even more difficult.
一方、一般にガラスフアイバは、保護被覆層無
しでは強度等が不足し、折損等の障害が生じる恐
れが高い。従つて、各素線毎に取り扱う場合に
は、各素線の被覆層が完全に残り、また、各被覆
層に欠陥がないように共通被覆層を除去すること
が必須である。 On the other hand, glass fibers generally lack strength and the like without a protective coating layer, and there is a high possibility that problems such as breakage will occur. Therefore, when handling each strand individually, it is essential to remove the common coating layer so that the coating layer of each strand remains completely and there are no defects in each coating layer.
そこで、本考案の目的は、例えば接続の際に共
通被覆層の除去が容易な共通被覆層と、共通被覆
層を除去した後も素線を効果的に保護することが
可能な素線毎の被覆層とを備えたテープ状光フア
イバ心線を提供することにある。 Therefore, the purpose of the present invention is to provide a common coating layer that can be easily removed during connection, and a separate layer for each strand that can effectively protect the strands even after the common coating layer is removed. An object of the present invention is to provide a tape-shaped optical fiber core provided with a coating layer.
問題点を解決するための手段
本考案に従うと、各々が保護被覆層を備え所定
の配列平面上に平行に配列された複数の光フアイ
バ素線と、該複数の光フアイバ素線を一体に被覆
する共通被覆層とを具備するテープ状光フアイバ
心線において、更に、該保護被覆層と該共通被覆
層との間に、両者の接着または圧接を阻害するた
めに設けられた剥離性硬化被覆層を備え、該共通
被覆層の表面が該配列平面と交叉する部位を含む
所定の領域における該共通被覆層の厚さが、他の
領域における該共通被覆層厚さよりも実質的に薄
いことを特徴とするテープ状光フアイバ心線が提
供される。Means for Solving the Problems According to the present invention, a plurality of optical fiber strands each having a protective coating layer are arranged in parallel on a predetermined arrangement plane, and the plurality of optical fiber strands are integrally coated. A tape-shaped optical fiber core wire comprising a common coating layer, further comprising a peelable hardened coating layer provided between the protective coating layer and the common coating layer in order to prevent adhesion or pressure contact between the two. characterized in that the thickness of the common covering layer in a predetermined region including a portion where the surface of the common covering layer intersects the alignment plane is substantially thinner than the thickness of the common covering layer in other regions. A tape-shaped optical fiber core wire is provided.
作 用
本考案に従つて作製されたテープ状光フアイバ
心線は、その共通被覆層に局部的に薄い部分が設
けられている。従つて、このテープ状光フアイバ
心線から共通被覆層を除去する際には、この共通
被覆層が薄くなつた部分を結ぶ線と直交する方向
に引つ張り力を付与すれば、共通被覆層はその薄
い部分から自ずと裂けて乖離し、各光フアイバ素
線が露出する。Function The tape-shaped optical fiber core wire produced according to the present invention has a locally thin portion in its common coating layer. Therefore, when removing the common coating layer from this tape-shaped optical fiber core, if a tensile force is applied in the direction perpendicular to the line connecting the thinned portions of the common coating layer, the common coating layer can be removed. The thin part of the optical fiber will naturally tear and separate, exposing each optical fiber.
また、本考案に従うテープ状光フアイバ心線で
は、各素線の保護被覆層と共通被覆層との間で接
着あるいは圧接が生じないように、両者の間に剥
離性硬化被覆層が形成されているので、上述のよ
うに共通被覆層が乖離すれば、各光フアイバ素線
はその各々の被覆層を完全に残したまま露出する
ので、これを容易に独立して処理することが可能
である。 In addition, in the tape-shaped optical fiber core wire according to the present invention, a peelable hardened coating layer is formed between the protective coating layer of each strand and the common coating layer to prevent adhesion or pressure contact between the two. Therefore, if the common coating layer separates as described above, each optical fiber strand is exposed with its respective coating layer intact, so it can be easily processed independently. .
尚、この薄い部分から共通被覆層が乖離すると
いう機能に鑑みて、共通被覆層が最も薄くなる部
位は、共通被覆層をその断面で２分する位置であ
れば何れの位置にあつても所期の機能を果たすこ
とができる。しかしながら、実際の光フアイバ心
線は、実際には最大寸法でも数mm程度と比較的細
いものであり、作業時の操作性等を考慮すると光
フアイバ素線の配列平面の両端位置で共通被覆層
が裂けることが好ましい。 In addition, in consideration of the function that the common coating layer separates from this thin part, the thinnest part of the common coating layer can be any position that divides the common coating layer into two in cross section. It is possible to perform the functions of the period. However, actual optical fibers are relatively thin, with a maximum dimension of several millimeters, and in consideration of operability during work, a common coating layer is formed at both ends of the optical fiber arrangement plane. It is preferable that the rupture occurs.
テープ状光フアイバ心線の各被覆層を形成する
樹脂材料は、光フアイバを保護するのに十分な強
度を有するものであれば足り、従来から光フアイ
バの保護被覆層を形成するために用いられていた
各種の材料を用いることができる。代表的なもの
としては、ナイロン等の熱可塑性樹脂やウレタン
アクリレートなどの紫外線硬化性樹脂を挙げるこ
とができる。 The resin material forming each coating layer of the tape-shaped optical fiber core wire may be any resin material as long as it has sufficient strength to protect the optical fiber. Various materials can be used. Typical examples include thermoplastic resins such as nylon and ultraviolet curable resins such as urethane acrylate.
また、剥離性硬化被覆層を形成する材料として
は、紫外線硬化性等の光硬化性あるいは熱硬化性
を有して容易に成形でき、且つ、共通被覆層ある
いは各光フアイバの被覆層と圧接あるいは接着を
生じない各種の樹脂を用いることができる。 In addition, the material for forming the peelable cured coating layer should be one that has photocurability such as ultraviolet curability or thermosetting properties and can be easily molded, and that can be pressed or bonded to the common coating layer or the coating layer of each optical fiber. Various resins that do not cause adhesion can be used.
このような剥離性硬化被覆層の材料樹脂の例と
しては、紫外線硬化性シリコン系樹脂あるいは紫
外線硬化性弗素樹脂等を主成分とする剥離剤を挙
げることができる。なお、ここで使用されるシリ
コン系樹脂あるいは弗素系樹脂とは、それぞれ分
子中に珪素（Si）原子または弗素（Ｆ）原子を持
つて有機化合物であつて、熱あるいは光によつて
硬化が可能であり、硬化物が良好な剥離性を有す
るものをいう。 Examples of the material resin for such a peelable cured coating layer include a release agent whose main component is an ultraviolet curable silicone resin or an ultraviolet curable fluororesin. The silicone resins and fluorine resins used here are organic compounds that have silicon (Si) atoms or fluorine (F) atoms in their molecules, respectively, and can be cured by heat or light. , and the cured product has good releasability.
尚、剥離性硬化被覆層の厚さは一般的には
20μm以下であり、望ましくは10μm以下であるこ
とが好ましい。その理由は、剥離性硬化被覆層は
素線の保護機能を必ずしも有していないので、可
能な限り薄いことが望ましいからである。また、
剥離性硬化被覆層が極端に厚くなると、素線の伝
送特性に悪影響を及ぼすのみならず、擦過等によ
つて剥離性硬化被覆層が破壊あるいは剥がれ等を
生じる恐れがある。反面、各光フアイバ素線の被
覆層と共通被覆層とを完全に分離するに足る厚さ
を有していることが望ましい。 In addition, the thickness of the peelable cured coating layer is generally
It is preferably 20 μm or less, preferably 10 μm or less. The reason for this is that the peelable cured coating layer does not necessarily have a protective function for the strands, so it is desirable that it be as thin as possible. Also,
If the peelable cured coating layer becomes extremely thick, not only will it have an adverse effect on the transmission characteristics of the strands, but there is also a risk that the peelable cured coating layer will be destroyed or peeled off due to abrasion or the like. On the other hand, it is desirable that the thickness is sufficient to completely separate the coating layer of each optical fiber strand from the common coating layer.
また、剥離性硬化被覆層の隣接層に対する接着
強度、即ち各素線の被覆層に対する接着強度と共
通被覆層に対する接着強度とでは、何れがより強
くともあるいは等しくとも実用上差し支えない
が、強いて言えば、素線毎の被覆層に対するもの
の方が強いことが好ましい。というのは、剥離性
硬化被覆層が共通被覆層側に付着するような構成
の場合、共通被覆層の除去の際に剥離性硬化被覆
層を破壊することが必要になり、このとき素線に
応力が作用するので好ましくない。また、破壊さ
れた剥離性硬化被覆層は、一部が素線側に残るこ
とになるので、共通被覆層を除去された素線か
ら、再び剥離性硬化被覆層の残滓を除去するとい
う作業が必要になる。 In addition, there is no problem in practical terms whether the adhesion strength of the peelable cured coating layer to the adjacent layer, that is, the adhesion strength of each strand to the coating layer or the adhesion strength to the common coating layer, is stronger or equal, but it cannot be said strongly. For example, it is preferable that the coating layer for each strand be stronger. This is because, in the case of a structure in which the peelable cured coating layer is attached to the common coating layer side, it is necessary to destroy the peelable cured coating layer when removing the common coating layer, and at this time, it is necessary to destroy the peelable cured coating layer. This is not preferable because it causes stress. In addition, since a part of the broken hardened peelable coating layer will remain on the wire side, it is necessary to remove the residue of the hardened peelable coating layer again from the wire from which the common coating layer has been removed. It becomes necessary.
尚、これらの各被覆層あるいは剥離性硬化被覆
層を各々複数の層により形成することも本考案の
技術的範囲を逸脱するものではない。 It should be noted that it does not depart from the technical scope of the present invention to form each of these coating layers or peelable cured coating layers with a plurality of layers.
実施例
以下に本考案に従うテープ状光フアイバ心線に
ついてより具体的に説明するが、以下に開示され
るものは、本考案の一実施例に過ぎず、本考案の
技術的範囲を何等制限するものではない。Examples The tape-shaped optical fiber core according to the present invention will be described in more detail below, but what is disclosed below is only one example of the present invention, and does not limit the technical scope of the present invention in any way. It's not a thing.
尚、以下の記述において、光フアイバ素線１、
保護被覆層２並びに共通被覆層３については常に
同じ参照番号を用いて記述する。 In the following description, the optical fiber 1,
The protective coating layer 2 as well as the common coating layer 3 will always be described using the same reference numbers.
第１図ａは、本考案に従う光フアイバの構成を
示す断面図である。 FIG. 1a is a sectional view showing the structure of an optical fiber according to the present invention.
同図に示すように、各々に保護被覆層２を備え
た光伝送用ガラスフアイバ１を複数同一平面上に
平行に配列し、これを共通被覆層３により一体と
してテープ状光フアイバ心線として形成してい
る。また、各光フアイバ素線はその外表面に剥離
性硬化被覆層４を備えている。 As shown in the figure, a plurality of optical transmission glass fibers 1 each having a protective coating layer 2 are arranged in parallel on the same plane, and are integrated with a common coating layer 3 to form a tape-shaped optical fiber core. are doing. Further, each optical fiber strand is provided with a peelable cured coating layer 4 on its outer surface.
光フアイバ１は、直径125μmの光伝送用ガラス
フアイバであつて、その被覆層２は紫外線硬化性
のウレタンアクリレートを材料として、直径
245μmの光フアイバ素線として形成されたもので
ある。また、この実施例に示した光フアイバで
は、被覆層２を備えた光フアイバ１を、更に紫外
線硬化性剥離性硬化被覆層材料を充填した塗布ダ
イス中を通過させて剥離性硬化被覆層４を形成し
た。このとき使用したダイスは穴径260μmのダイ
スであり、剥離性硬化被覆層材料としては、紫外
線硬化性のシリコンアクリレートを使用した。ま
た、紫外線による硬化は、120W／cmの高圧水銀
灯を使用して約５秒間紫外線照射を行なつて実施
した。その結果、直径は251μmの剥離性硬化被覆
層４を備えた光フアイバ素線となつた。 The optical fiber 1 is a glass fiber for optical transmission with a diameter of 125 μm, and its coating layer 2 is made of ultraviolet-curable urethane acrylate and has a diameter of 125 μm.
It is formed as a 245μm optical fiber wire. In addition, in the optical fiber shown in this example, the optical fiber 1 provided with the coating layer 2 is further passed through a coating die filled with an ultraviolet curable peelable cured coating layer material to form the peelable cured coating layer 4. Formed. The die used at this time was a die with a hole diameter of 260 μm, and ultraviolet curable silicon acrylate was used as the peelable cured coating layer material. Further, curing with ultraviolet rays was carried out by irradiating ultraviolet rays for about 5 seconds using a 120 W/cm high pressure mercury lamp. As a result, an optical fiber wire having a peelable cured coating layer 4 having a diameter of 251 μm was obtained.
このようにして被覆層２並びに剥離性硬化被覆
層４を備えた光フアイバ素線を５本並列に並べ、
紫外線硬化性ウレタンアクリレートを塗布して紫
外線照射して硬化することにより、これらを一体
として上下面での共通被覆層３の厚さTAが0.05
mm、左右両端部での厚さTBが0.03mmのテープ状テ
ープ状光フアイバ心線を得た。 In this way, five optical fiber wires provided with the coating layer 2 and the peelable cured coating layer 4 are arranged in parallel,
By applying ultraviolet curable urethane acrylate and curing it by irradiating it with ultraviolet rays, the thickness T A of the common coating layer 3 on the upper and lower surfaces is 0.05.
A tape-shaped optical fiber core wire having a thickness T B of 0.03 mm at both left and right ends was obtained.
以上のように構成されたテープ状光フアイバ心
線は、各光フアイバ素線の保護被覆層２と共通被
覆層３との間に剥離性硬化被覆層４が介在するの
で、両者の接着あるいは圧接がなく、共通被覆層
３を更に容易に除去することができ、また、共通
被覆層を除去された各々の光フアイバには完全な
保護被覆層が全く欠陥なしに残つた。 In the tape-shaped optical fiber core constructed as described above, the peelable cured coating layer 4 is interposed between the protective coating layer 2 of each optical fiber element and the common coating layer 3, so that the adhesive or pressure bonding between the two is possible. Without any defects, the common coating layer 3 could be removed more easily, and each optical fiber from which the common coating layer was removed was left with a complete protective coating layer without any defects.
第１図ｂは、上述のような態様を示したもので
あり、共通被覆層３の断面形状を矩形とし、内部
の前記光フアイバ素線の配列方向と直角な面を形
成する部分の厚さが、内部の前記光フアイバ素線
の配列方向と平行な面を形成する部分の厚さより
も実質的に薄くなるように構成したものである。 FIG. 1b shows the above-mentioned embodiment, in which the cross-sectional shape of the common coating layer 3 is rectangular, and the thickness of the portion forming a surface perpendicular to the arrangement direction of the optical fiber strands inside. However, it is configured to be substantially thinner than the thickness of a portion forming a plane parallel to the arrangement direction of the optical fiber strands inside.
尚、第１図ａ並びにｂにおいては、各光フアイ
バ素線が隣接する光フアイバ素線と相互に当接し
ているテープ状光フアイバ心線を示したが、共通
被覆層を有するテープ状光フアイバ心線には、本
考案は全て適用可能である。即ち、第２図ａに示
すように間隙５で共通被覆層３が接続していな
い、あるいは第２図ｂに示すように光フアイバ素
線の間で共通被覆層が接続されていても十分に薄
ければ、やかり共通被覆層３を乖離してこれを容
易に除去することが可能である。更に、第２図ｃ
に示すように、光フアイバ素線１と共通被覆層３
との間の一部に空隙６が形成されていても差し支
えない。 Although FIGS. 1a and 1b show tape-shaped optical fiber cores in which each optical fiber strand is in contact with an adjacent optical fiber strand, tape-shaped optical fibers having a common coating layer may also be used. The present invention is applicable to all core wires. That is, even if the common coating layer 3 is not connected at the gap 5 as shown in FIG. 2a, or even if the common coating layer 3 is connected between the optical fiber strands as shown in FIG. If it is thin, the common coating layer 3 can be separated and easily removed. Furthermore, Figure 2c
As shown in FIG.
There is no problem even if a gap 6 is formed in a part between the two.
考案の効果
以上詳述のように、本考案に従うテープ状光フ
アイバ心線は、各素線に剥離性硬化被覆層を設
け、且つ共通被覆層の実質的な厚さを一部薄くし
たことにより、接続等のために共通被覆層を除去
しても、各々の光フアイバに完全な被覆層が残
り、而もその作業を容易に、従つて短時間のうち
に行うことが可能になる。Effects of the Invention As detailed above, the tape-shaped optical fiber core wire according to the present invention is obtained by providing a peelable cured coating layer on each strand and partially reducing the substantial thickness of the common coating layer. Even when the common coating layer is removed for purposes such as connection, connection, etc., a complete coating remains on each optical fiber, making the operation easier and therefore faster.
その結果、数々の利点を備えながら、取り扱い
に高度な熟練を要求される等の問題点のあつたテ
ープ状光フアイバ心線の利用を拡大することが可
能になり、光通信技術の適用範囲、延いては大量
の情報伝送の実現をより進めることができる。 As a result, it has become possible to expand the use of tape-shaped optical fibers, which have many advantages but also have problems such as requiring a high level of skill in handling them, and expand the scope of application of optical communication technology. In turn, it is possible to further advance the realization of large amounts of information transmission.
第１図ａ並びにｂは、本考案に従つて形成され
たテープ状光フアイバ心線の構成を示す断面図で
あり、第２図ａ乃至ｃは、本考案を適用した各種
のテープ状光フアイバ心線の形態を示すものであ
り、第３図は、従来のテープ状光フアイバ心線の
構成を示す断面図である。
主な参照番号、１……光伝送用ガラスフアイ
バ、２……各光フアイバの被覆層、３……共通被
覆層、４……剥離性硬化被覆層。
1A and 1B are cross-sectional views showing the structure of a tape-shaped optical fiber core formed according to the present invention, and FIGS. 2A to 2C are cross-sectional views of various tape-shaped optical fibers to which the present invention is applied. This shows the form of the core wire, and FIG. 3 is a sectional view showing the structure of a conventional tape-shaped optical fiber core wire. Main reference numbers: 1...Glass fiber for optical transmission; 2...Coating layer of each optical fiber; 3...Common coating layer; 4...Peelable hard coating layer.
Claims (1)
平行に配列された複数の光フアイバ素線と、該
複数の光フアイバ素線を一体に被覆する共通被
覆層とを具備するテープ状光フアイバ心線にお
いて、 更に、該保護被覆層と該共通被覆層との間
に、両者の接着または圧接を阻害するために設
けられた剥離性硬化被覆層を備え、該共通被覆
層の表面が該配列平面と交叉する部位を含む所
定の領域における該共通被覆層の厚さが、他の
領域における該共通被覆層厚さよりも実質的に
薄いことを特徴とするテープ状光フアイバ心
線。 (2) 前記剥離性硬化被覆層の厚さが、20μm以下
であることを特徴とする実用新案登録請求の範
囲第１項に記載のテープ状光フアイバ心線。 (3) 前記剥離性硬化被覆層が、光硬化性または熱
硬化性の弗素系樹脂またはシリコン系樹脂によ
り形成されていることを特徴とする実用新案登
録請求の範囲第１項または第２項に記載された
テープ状光フアイバ心線。[Claims for Utility Model Registration] (1) A plurality of optical fiber strands each having a protective coating layer and arranged in parallel on a predetermined arrangement plane, and a common fiber that integrally covers the plurality of optical fiber strands. A tape-shaped optical fiber core wire comprising a coating layer further includes a peelable hardened coating layer provided between the protective coating layer and the common coating layer in order to inhibit adhesion or pressure contact between the two. , characterized in that the thickness of the common covering layer in a predetermined region including a portion where the surface of the common covering layer intersects the arrangement plane is substantially thinner than the thickness of the common covering layer in other regions. Tape-shaped optical fiber core. (2) The tape-shaped optical fiber core according to claim 1, wherein the peelable cured coating layer has a thickness of 20 μm or less. (3) The utility model registered in claim 1 or 2, characterized in that the peelable cured coating layer is formed of a photocurable or thermosetting fluorine-based resin or silicone-based resin. The tape-shaped optical fiber core described.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986126584U JPH0440179Y2 (en) | 1986-08-20 | 1986-08-20 | |
| KR1019870008492A KR880003203A (en) | 1986-08-05 | 1987-08-03 | Optical fiber core |
| US07/081,443 US4828349A (en) | 1986-08-05 | 1987-08-04 | Multicore optical fiber |
| AU76536/87A AU595632B2 (en) | 1986-08-05 | 1987-08-04 | Multicore optical fiber |
| CA000543673A CA1301509C (en) | 1986-08-05 | 1987-08-04 | Multicore optical fiber |
| DE3751584T DE3751584T3 (en) | 1986-08-05 | 1987-08-05 | Optical ribbon cable with several elements. |
| EP87111336A EP0262340B2 (en) | 1986-08-05 | 1987-08-05 | Optical ribbon cable with multiple elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986126584U JPH0440179Y2 (en) | 1986-08-20 | 1986-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6333112U JPS6333112U (en) | 1988-03-03 |
| JPH0440179Y2 true JPH0440179Y2 (en) | 1992-09-21 |
Family
ID=31020525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986126584U Expired JPH0440179Y2 (en) | 1986-08-05 | 1986-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440179Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4900126A (en) * | 1988-06-30 | 1990-02-13 | American Telephone & Telegraph Co. | Bonded array of transmission media |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59228204A (en) * | 1983-06-09 | 1984-12-21 | Nippon Telegr & Teleph Corp <Ntt> | Tapelike optical fiber and its manufacture |
| JPS60134211A (en) * | 1983-12-23 | 1985-07-17 | Furukawa Electric Co Ltd:The | Tape-shaped optical fiber unit |
| JPS6150910B2 (en) * | 1980-10-06 | 1986-11-06 | Kurosaki Refractories Co |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150910U (en) * | 1984-09-07 | 1986-04-05 |
-
1986
- 1986-08-20 JP JP1986126584U patent/JPH0440179Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150910B2 (en) * | 1980-10-06 | 1986-11-06 | Kurosaki Refractories Co | |
| JPS59228204A (en) * | 1983-06-09 | 1984-12-21 | Nippon Telegr & Teleph Corp <Ntt> | Tapelike optical fiber and its manufacture |
| JPS60134211A (en) * | 1983-12-23 | 1985-07-17 | Furukawa Electric Co Ltd:The | Tape-shaped optical fiber unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6333112U (en) | 1988-03-03 |
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