JPH01129215A - Connector for multifiber optical fiber - Google Patents
Connector for multifiber optical fiberInfo
- Publication number
- JPH01129215A JPH01129215A JP28763687A JP28763687A JPH01129215A JP H01129215 A JPH01129215 A JP H01129215A JP 28763687 A JP28763687 A JP 28763687A JP 28763687 A JP28763687 A JP 28763687A JP H01129215 A JPH01129215 A JP H01129215A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- connector
- core optical
- gripping
- core
- 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 62
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 239000013013 elastic material Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は主として複数本の光ファイバを個々に１次被覆
、緩衝層を施したあと、これを並列させた状態で一括し
て２次被覆を施してテープ状としたフラット型の多心光
ファイバ心線用コネクタに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention mainly involves applying a primary coating and a buffer layer to a plurality of optical fibers individually, and then applying a secondary coating to the optical fibers in parallel. The present invention relates to a flat type multi-core optical fiber connector that is processed into a tape shape.
一般にこの種フラット型多心光ファイバ心線用コネクタ
にあっては多心光ファイバ心線をコネクタ本体に抜は止
め固定する手段として接着剤等による固定手段が採用さ
れている。Generally, in this type of flat multi-core optical fiber connector, a fixing means such as an adhesive is employed as a means for fixing the multi-core optical fiber to the connector body without removing it.
（発明が解決しようとする問題点）
しかしこのような従来の構成では接着剤の硬化までの待
ち時間が長く、組立の作業性が悪いという問題があった
。(Problems to be Solved by the Invention) However, in such a conventional configuration, there was a problem that the waiting time for the adhesive to harden was long and the workability of assembly was poor.
本発明はかかる事情に鑑みてなされたものであって、そ
の目的とするところは弾性体、喫機能を備えた把持部材
、保持部材の使用によって確実な連結固定機能が得られ
、しかも構造が簡単で組立作業も迅速に行い得、光ファ
イバ損失の増大もない多心光ファイバ心線用コネクタを
提供す名にある。The present invention has been made in view of the above circumstances, and its purpose is to obtain a reliable connection and fixing function by using an elastic body, a gripping member with a cutting function, and a holding member, and to have a simple structure. The objective is to provide a multi-core optical fiber connector that can be assembled quickly and does not increase optical fiber loss.
〔問題点を解決するための手段］
本発明に係る多心光ファイバケーブル用コネクタは、複
数本の光ファイバを一層に並列して一括被覆した偏平な
多心光ファイバ心線を基端部から先端部にまで通してそ
の先端部に各光ファイバを並列した状態で覗かせるコネ
クタ本体と、該コネクタ本体内に位置する前記光ファイ
バ心線の先端部周面に当接せしめられる弾性体と、該弾
性体の外周に重ねて配置され、光ファイバ心線の先端部
側に向かうに従って多心光ファイバ心線表面から離反す
る向きのテーパ面を備えた複数の把持部材と、該把持部
材を多心光ファイバ心線の表面に圧接せしめるテーパ面
を先端部内側に備え、前記コネクタ本体に内嵌された状
態で前記把持部材に外嵌される。保持部材とを具備する
。[Means for Solving the Problems] The multi-core optical fiber cable connector according to the present invention connects a flat multi-core optical fiber core, in which a plurality of optical fibers are arranged in parallel and collectively coated, from the base end. a connector body that is passed through to the tip end of the connector body so that the optical fibers can be seen in parallel at the tip end; and an elastic body that is brought into contact with the peripheral surface of the tip end of the optical fiber core located inside the connector body; a plurality of gripping members disposed overlappingly on the outer periphery of the elastic body and each having a tapered surface that is oriented away from the surface of the multi-core optical fiber as it goes toward the distal end side of the optical fiber; A tapered surface that is pressed against the surface of the cored optical fiber is provided on the inner side of the tip, and is fitted externally to the gripping member while being internally fitted into the connector main body. A holding member.
（作用〕
本発明にあってはこれによって弾性体による緩衝作用及
び把持部材のテーパ面と保持部材のテーパ面との接合に
よる模作用によって光ファイバ心線に対する確実なしか
も安全性の高い固定機能が得られる。(Function) According to the present invention, a reliable and highly safe fixing function for the optical fiber can be achieved by the buffering effect of the elastic body and the imitation effect by the joining of the tapered surface of the gripping member and the tapered surface of the holding member. can get.
以下本発明をその実施例を示す図面に基づき具体的に説
明する。第１図は本発明に係るフラット型の多心光ファ
イバ心線用コネクタ（以下本発明品という）の外観斜視
図、第２図は同じく押え部材を外した状態での部分破砕
斜視図、第３図は同じく縦断面図であり、図中１はコネ
クタ本体、２は保持部材、３は分割錐体形をなす把持部
材、４は整列部材、５は押え部材、６はフラット型多心
光ファイバ心線を示している。多心光ファイバ心線６は
複数の光ファイバ６ａの各別に１次被覆、緩衝層を施し
たものを一層に並列した状態で一括して２次被覆を施し
て偏平なテープ状に形成してあり、その一端部と図示し
ない他の同様な多心光ファイバ心線、或いは夫々独立し
た単心の光ファイバの端部とをコネクタにより光学的に
接続し、また切り離し得るようになっている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on drawings showing embodiments thereof. FIG. 1 is an external perspective view of a flat multi-core optical fiber connector according to the present invention (hereinafter referred to as the product of the present invention), FIG. 3 is a longitudinal sectional view, in which 1 is a connector body, 2 is a holding member, 3 is a split cone-shaped gripping member, 4 is an alignment member, 5 is a holding member, and 6 is a flat multicore optical fiber. It shows the core. The multi-core optical fiber 6 is formed by applying a primary coating and a buffer layer to a plurality of optical fibers 6a, which are arranged in parallel in a single layer, and then collectively coated with a secondary coating to form a flat tape. One end thereof can be optically connected to and disconnected from other similar multi-core optical fibers (not shown) or ends of independent single-core optical fibers using a connector.
コネクタ本体１は第３図に示す如（軸心線に沿って多心
光ファイバ心線６を通す偏平な孔１ａを備え、該孔１ａ
の先端部はコネクタ本体ｌの先端部内側に穿った拡大凹
孔１ｂの、また基端部はコネクタ本体１０基端部内側に
穿った拡大螺条孔１ｃの奥底中央部に夫々連通ずる態様
で形成せしめである。As shown in FIG.
The distal end of the connector main body L communicates with the enlarged concave hole 1b bored inside the distal end of the connector body 1, and the base end communicates with the deep central part of the enlarged threaded hole 1c bored inside the proximal end of the connector main body 10. Formation is mandatory.
先端部側の拡大凹孔１ｂ内には多心光ファイバ心線６の
光ファイバ６ａを一列に配列した状態に固定するための
整列部材４及び押え部材５が嵌挿固定され、また基端部
側の拡大螺条孔１ｃ内には多心光ファイバ心線６に外嵌
される弾性体８及びその外周から多心光ファイバ心線６
を侠む把持部材３゜３を収容すると共に、この把持部材
３．３をコネクタ本体１に固定するための保持部材２が
螺合固定せしめられている。前記先端側の拡大凹孔１ｂ
は矩形状の整列部材４２分割円柱形状の押え部材５を重
ねた状態の断面形状と略相似形に形成され、また基端側
の拡大螺条孔１ｃは円筒形をなす保持部材２の断面形状
と略等しい円形に形成され、その周面の先端部側の略半
分にはねじ部１ｄを備えている。An alignment member 4 and a presser member 5 for fixing the optical fibers 6a of the multi-core optical fiber core 6 in a line are inserted and fixed into the enlarged concave hole 1b on the distal end side, and the proximal end Inside the enlarged threaded hole 1c on the side, an elastic body 8 is fitted around the multi-core optical fiber 6, and from the outer periphery of the elastic body 8, the multi-core optical fiber 6 is inserted.
A holding member 2 for accommodating a gripping member 3.3 that carries the connector and for fixing this gripping member 3.3 to the connector body 1 is screwed and fixed. Enlarged concave hole 1b on the tip side
is formed to have a cross-sectional shape that is approximately similar to the cross-sectional shape of the rectangular alignment member 42 and the cylindrical presser member 5 stacked on top of each other, and the enlarged threaded hole 1c on the base end side has a cross-sectional shape of the cylindrical holding member 2. It is formed into a circular shape approximately equal to , and is provided with a threaded portion 1d on approximately half of its peripheral surface on the distal end side.
１ｅはコネクタ本体１の先端部外周に軸長方向に延在形
成せしめた位置決め用のガイド突条である。Reference numeral 1e denotes a positioning guide protrusion formed on the outer periphery of the tip end of the connector body 1 and extending in the axial direction.
整列部材４は第２図に示す如く矩形板状に形成され、表
面には左、右の両側辺に沿って、両側にガイドピン７．
７の挿脱可能な一対の深い■溝４ａ、４ａを、またこの
両■溝４ ａ ＋ ４ ａ間には多心光ファイバ心線６
の各光ファイバ６ａ、６ａ・・・を配列する複数本の浅
い■溝４ｂ、４ｂ・・・を多心光ファイバ心線６内にお
ける光ファイバ６ａ、６ａ・・・相互の間隔と略等しい
間隔で形成されている。The alignment member 4 is formed into a rectangular plate shape as shown in FIG. 2, and has guide pins 7 on its surface along both left and right sides.
A pair of deep ■ grooves 4a, 4a that can be inserted and removed, and a multi-core optical fiber 6 is inserted between both grooves 4a + 4a.
The plurality of shallow grooves 4b, 4b, . . . in which the respective optical fibers 6a, 6a, . . . It is formed of.
また押え部材５は軸心線に沿う態様で分割した半割円柱
状に形成され、その分割面を整列部材４上に重ね合せた
とき両側寄りの部分は深い■溝４ａ＋４ａの上面に位置
してガイドピン７．７の挿脱可能なガイドビン挿入孔を
形成し、また中間部は浅い■溝４ｂ、４ｂ・・・に嵌め
込んだ各光ファイバ６ａ＋６ａ・・・の上面に当接する
ようになっている。The presser member 5 is formed into a half-cylindrical shape divided along the axis, and when the divided surface is superimposed on the alignment member 4, the parts on both sides are located on the upper surface of the deep groove 4a+4a. A guide pin insertion hole is formed in which the guide pin 7.7 can be inserted and removed, and the intermediate portion is brought into contact with the upper surface of each optical fiber 6a+6a... fitted in the shallow groove 4b, 4b... ing.
一方、把持部材３，３は金属又は適宜の弾性を備えた合
成樹脂を材料として恰も円錐台をその中心線を通る面で
２分割し、且つその分割面であって光ファイバ心線６と
対向する部分に凹溝３ｂ、３ｂを形成しており、夫々第
４図に示す如く光ファイバ心線６の外周と凹溝：Ｔｈ、
３ｂとの間に弾性体８を介在させた状態で円錐台の底
部に相当する側を多心光ファイバ心線６の先端側に向け
、頂部に相当する側を反対側にした状態、換言すれば外
周のテーバ面３ａ、 ３ａを多心光ファイバ心線６の先
端側に向うに従ってケーブル表面から離反°する向きに
して多心光ファイバ心線６の相対応する位置でその両面
に当接させ、その外周に第３図に示す如く保持部材２を
外嵌せしめている。On the other hand, the gripping members 3, 3 are made of metal or synthetic resin with appropriate elasticity, and divide a truncated cone into two along a plane passing through its center line, and the dividing plane faces the optical fiber core 6. As shown in FIG.
3b, with the side corresponding to the bottom of the truncated cone facing the tip side of the multi-core optical fiber 6, and the side corresponding to the top facing the opposite side, in other words. For example, the outer circumferential tapered surfaces 3a, 3a are oriented so as to move away from the cable surface toward the distal end side of the multi-core optical fiber 6, and are brought into contact with both surfaces of the multi-core optical fiber 6 at corresponding positions. As shown in FIG. 3, a holding member 2 is fitted around the outer periphery of the holding member 2, as shown in FIG.
弾性体８は矩形の環状に形成され、内面形状は光ファイ
バ心線６の断面形状に合わせ、且つこれよりも若干小さ
い矩形に形成してあり、多心光ファイバ心線６に外嵌し
たとき自らの弾性変形によって任意位置に外嵌固定され
るようにし、把持部材３，３と多心光ファイバ心線６と
の間に介在して多心光ファイバ心線６への異常な側圧が
加わるのを防止する役目を持っている。弾性体８の材料
としてはゴム或いはポリウレタン等の発泡性合成樹脂が
用いられる。The elastic body 8 is formed into a rectangular annular shape, and its inner surface is formed into a rectangular shape that matches the cross-sectional shape of the optical fiber core 6 and is slightly smaller than this, so that when it is fitted onto the multi-core optical fiber core 6, It is made to be externally fitted and fixed in any position by its own elastic deformation, and is interposed between the gripping members 3, 3 and the multi-core optical fiber 6, and an abnormal lateral pressure is applied to the multi-core optical fiber 6. It has the role of preventing As the material of the elastic body 8, rubber or foamable synthetic resin such as polyurethane is used.
保持部材２は合成樹脂製であって厚肉円筒形に形成され
、内径は多心光ファイバ心線６の幅寸法よりも若干太き
（、また先端側内周面には前記把持部材３，３の外周の
テーパ面３ａ、３ａと略同じ勾配のテーパ面２ａを、更
に先端部外周面には前記コネクタ本体１の拡大螺条孔１
ａ周面のねじ部１ｄと螺合するねじ部２ｂを備えている
。保持部材２は前記多心光ファイバ心線６に挿通した状
態でその先端側を第５図に示す状態の把持部材３，３０
基端部側からこれに外嵌せしめつつ、ねじ部２ｂをねじ
部１ｄに螺合せしめることにより、テーバ面２ａ、３ａ
、３ａの摺接による楔作用で両把持部材３，３を多心光
ファイバ心線６の表面に圧接せしめ、多心光ファイバ心
線６を把持部材３．３、保持部材２及びコネクタ本体ｌ
と一体的に固定するようになっている。The holding member 2 is made of synthetic resin and is formed into a thick-walled cylindrical shape, with an inner diameter slightly larger than the width dimension of the multi-core optical fiber core 6 (and the holding member 3, 3, and a tapered surface 2a having approximately the same slope as 3a, and an enlarged threaded hole 1 of the connector body 1 on the outer peripheral surface of the tip end.
It is provided with a threaded portion 2b that is threadedly engaged with a threaded portion 1d on the circumferential surface a. The holding member 2 is inserted into the multi-core optical fiber 6 and its distal end side is shown in FIG.
By screwing the threaded portion 2b onto the threaded portion 1d while externally fitting it from the base end side, the tapered surfaces 2a, 3a
, 3a are brought into pressure contact with the surface of the multi-core optical fiber 6 by the wedge action caused by the sliding contact between the grip members 3.
It is designed to be fixed integrally with the
なお、上述の実施例では弾性体８を矩形リング状に形成
して予め多心光ファイバ心線６に外嵌する構成につき説
明したが、何らこれに限らず、前記弾性体８を２に横割
りして例えば予め両把持部材３，３の凹溝３ｂ、 ３ｂ
内面に貼着し、またテープ状に形成して光ファイバ心線
６の外周に巻着することとしてもよい。In the above embodiment, the elastic body 8 is formed into a rectangular ring shape and is fitted onto the multi-core optical fiber 6 in advance. However, the present invention is not limited to this. For example, by dividing the grooves 3b, 3b of both gripping members 3, 3 in advance.
It may be attached to the inner surface, or it may be formed into a tape shape and wound around the outer periphery of the optical fiber core 6.
また、上述の実施例ではいずれも把持部材３゜１３を半
割円錐体形に形成した場合を示したが、何らこれに限る
ものではなく、例えば４分割錐体形等に形成してもよい
。Furthermore, in the above-described embodiments, the gripping member 3.degree. 13 is formed in the shape of a half-split cone, but it is not limited to this, and may be formed, for example, in the shape of a quarter-split cone.
〔効果］
以上の如く本発明品にあっては多心光ファイバ心線の外
周面を弾性体を介在させて複数の把持部材にて挟み、こ
の外周に把持部材のテーパ面に圧接するテーパ面を備え
た保持部材を外嵌して多心光ファイバ心線を挾持せしめ
、この状態で保持部材をコネクタ本体から抜は止めする
ようにしたから、コネクタ本体に対する多心光ファイバ
心線の固定構造が極めて簡略でその製作も容易となり、
しかも確実な抜は止め機能を得られ、更に光ファイバに
対するマイクロベンドの形成、或いは光ファイバの損傷
を招くことがないなど、本発明は優れた効果を奏するも
のである。[Effects] As described above, in the product of the present invention, the outer circumferential surface of the multi-core optical fiber is held between a plurality of gripping members with an elastic body interposed therebetween, and a tapered surface is formed on the outer circumference of the multi-core optical fiber to be pressed against the tapered surface of the gripping member. The multi-core optical fiber is fitted onto the outside of the holding member and the multi-core optical fiber is clamped, and the holding member is prevented from being removed from the connector body in this state, so the structure for fixing the multi-core optical fiber to the connector body is is extremely simple and easy to manufacture,
Furthermore, the present invention has excellent effects such as a reliable pulling-out prevention function and no formation of microbends or damage to the optical fiber.
第１図は本発明品の外観斜視図、第２図は同じく押え部
材を外した状態での部分破砕斜視図、第３図は同じく縦
断面図、第４図は弾性体の構造を示す斜視図、第５図は
弾性体の外周を把持部材で挾持させた態様を示す斜視図
である。
１・・・コネクタ本体 ２・・・保持部材 ２ａ・・・
テーパ面 ３・・・把持部材 ３ａ・・・テーパ面 ４
・・・整列部材５・・・押え部材 ６・・・多心光ファ
イバ心線７・・・ガイドピン ８・・・弾性体
特 許 出願人 三菱電線工業株式会社外１名
代理人 弁理士 河 野 登 夫篤 ３ 図
％ ５．図
手続補正書（自発）
昭和６３年７月１２日Fig. 1 is an external perspective view of the product of the present invention, Fig. 2 is a partially exploded perspective view with the presser member removed, Fig. 3 is a vertical sectional view, and Fig. 4 is a perspective view showing the structure of the elastic body. FIG. 5 is a perspective view showing a mode in which the outer periphery of the elastic body is held between gripping members. 1... Connector body 2... Holding member 2a...
Tapered surface 3...Gripping member 3a...Tapered surface 4
...Aligning member 5...Press member 6...Multi-core optical fiber core 7...Guide pin 8...Elastic body patent Applicant: Mitsubishi Cable Industries, Ltd. and one other representative Patent attorney Kawa Noboru Atsushi 3 Figure% 5. Drawing procedure amendment (voluntary) July 12, 1988
Claims (1)
偏平な多心光ファイバ心線を基端部から先端部にまで通
してその先端部に各光ファイバを並列した状態で覗かせ
るコネクタ本体と、該コネクタ本体内に位置する前記光
ファイバ心線の先端部周面に当接せしめられる弾性体と
、該弾性体の外周に重ねて配置され、光ファイバ心線の
先端部側に向かうに従って多心光ファイバ心線表面から
離反する向きのテーパ面を備えた複数の把持部材と、該
把持部材を多心光ファイバ心線の表面に圧接せしめるテ
ーパ面を先端部内側に備え、前記コネクタ本体に内嵌さ
れた状態で前記把持部材に外嵌される。保持部材とを具
備することを特徴とする多心光ファイバ心線用コネクタ
。 ２、前記把持部材は分割錐体形に形成されている特許請
求の範囲第１項記載の多心光ファイバ心線用コネクタ。[Claims] 1. A flat multi-core optical fiber coated with a plurality of optical fibers lined up in one layer is passed from the base end to the tip end, and each optical fiber is placed in parallel at the tip end. a connector main body that can be seen in a state of a plurality of gripping members each having a tapered surface that is oriented away from the surface of the multi-core optical fiber as it goes toward the distal end side; The holding member is provided inside the connector body, and is fitted onto the outside of the gripping member while being fitted inside the connector main body. 1. A multi-core optical fiber connector, comprising: a holding member. 2. The multi-core optical fiber connector according to claim 1, wherein the gripping member is formed in the shape of a segmented cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28763687A JPH01129215A (en) | 1987-11-13 | 1987-11-13 | Connector for multifiber optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28763687A JPH01129215A (en) | 1987-11-13 | 1987-11-13 | Connector for multifiber optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01129215A true JPH01129215A (en) | 1989-05-22 |
Family
ID=17719792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28763687A Pending JPH01129215A (en) | 1987-11-13 | 1987-11-13 | Connector for multifiber optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01129215A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011017979A (en) * | 2009-07-10 | 2011-01-27 | Furukawa Electric Co Ltd:The | Optical connector and method of assembling the same |
| JP5689999B1 (en) * | 2014-03-20 | 2015-03-25 | 株式会社フジクラ | Optical fiber assembly |
-
1987
- 1987-11-13 JP JP28763687A patent/JPH01129215A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011017979A (en) * | 2009-07-10 | 2011-01-27 | Furukawa Electric Co Ltd:The | Optical connector and method of assembling the same |
| JP5689999B1 (en) * | 2014-03-20 | 2015-03-25 | 株式会社フジクラ | Optical fiber assembly |
| US9535231B2 (en) | 2014-03-20 | 2017-01-03 | Fujikura Ltd. | Optical fiber assembly |
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