JP2896860B2 - Optical multi-core connector - Google Patents
Optical multi-core connectorInfo
- Publication number
- JP2896860B2 JP2896860B2 JP4542895A JP4542895A JP2896860B2 JP 2896860 B2 JP2896860 B2 JP 2896860B2 JP 4542895 A JP4542895 A JP 4542895A JP 4542895 A JP4542895 A JP 4542895A JP 2896860 B2 JP2896860 B2 JP 2896860B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- optical fibers
- adapter
- plug
- optical fiber
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、光多芯コネクタに関
し、特に光ファイバ同士を直接接続する光多芯コネクタ
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical multi-core connector, and more particularly to an optical multi-core connector for directly connecting optical fibers.
【０００２】[0002]
【従来の技術】従来、複数の光ファイバを一括して相互
接続する多芯光コネクタとして、Ｖ溝アレーを形成した
部材に、光ファイバ、或いは、光ファイバに固定したフ
ェルールを整列させて接続するものが知られている。そ
のような多芯光コネクタを図３に示す。2. Description of the Related Art Conventionally, as a multi-core optical connector for interconnecting a plurality of optical fibers collectively, an optical fiber or a ferrule fixed to the optical fiber is aligned and connected to a member having a V-groove array. Things are known. Such a multi-core optical connector is shown in FIG.
【０００３】図３の多芯光コネクタは、コネクタハウジ
ング３１と、光ファイバ芯線３２をコネクタハウジング
３１に固定する固定部材３３と、光ファイバ芯線３２か
ら伸びる光ファイバ素線３４を押圧保持するバネ部材３
５とを有している。コネクタハウジング３１の表面に
は、Ｖ字溝３６が形成されており、バネ部材３５は、Ｖ
字溝３６内に光ファイバ素線３４を収容した状態で、こ
の光ファイバ素線３４を押圧保持する。The multi-core optical connector shown in FIG. 3 includes a connector housing 31, a fixing member 33 for fixing an optical fiber core 32 to the connector housing 31, and a spring member for pressing and holding an optical fiber 34 extending from the optical fiber core 32. 3
5 is provided. A V-shaped groove 36 is formed on the surface of the connector housing 31.
The optical fiber 34 is pressed and held in a state where the optical fiber 34 is accommodated in the groove 36.
【０００４】また、他の光多芯コネクタとして、光ファ
イバに固定したフェルールをスリーブなどの調芯用部材
に挿入して接続を行うものがある。[0004] As another optical multi-core connector, there is a connector in which a ferrule fixed to an optical fiber is inserted into an alignment member such as a sleeve to make connection.
【０００５】[0005]
【発明が解決しようとする課題】従来のように、コネク
タハウジングに形成されたＶ字溝に、光ファイバを配列
保持するコネクタでは、光ファイバをＶ字溝に挿入し、
その後、固定部材３３により光ファイバを保持（固定）
しなければならず、接続に手間がかかるという問題点が
ある。As in the prior art, in a connector in which optical fibers are arranged and held in a V-shaped groove formed in a connector housing, the optical fiber is inserted into the V-shaped groove.
Thereafter, the optical fiber is held (fixed) by the fixing member 33.
And the connection is time-consuming.
【０００６】また、光ファイバ素線をバネ部材で押圧し
たままで接続すると、光ファイバ素線に傷が付きやす
く、折損の原因となるという問題点がある。Further, if the optical fiber is connected while being pressed by the spring member, there is a problem that the optical fiber is easily damaged and may be broken.
【０００７】さらに、Ｖ字溝を有するコネクタ及びスリ
ーブを用いるコネクタのいずれにおいても、フェルール
を用いるとサイズが大きくなるという問題点がある。な
お、一般的に光コネクタに使用されるフェルールの外径
は、２．５mm、または１．２５mmである。Further, in both the connector having the V-shaped groove and the connector using the sleeve, there is a problem that the size becomes large when the ferrule is used. The outer diameter of a ferrule generally used for an optical connector is 2.5 mm or 1.25 mm.
【０００８】本発明は、小形で、着脱作業を容易に行う
ことができ、光ファイバに傷を付けにくい多芯光コネク
タを提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-core optical connector which is small in size, can be easily attached and detached, and does not easily damage an optical fiber.
【０００９】[0009]
【課題を解決するための手段】本発明によれば、複数の
光ファイバの端部をそれぞれ固定保持する２つのプラグ
と、該２つのプラグと嵌合し、一方のプラグが固定保持
する前記複数の光ファイバと他方のプラグが固定保持す
る前記複数の光ファイバとを接続するアダプタとを有す
る光多芯コネクタにおいて、前記プラグが、前記複数の
光ファイバを先端から所定の距離だけ離れた点で固定す
る固定手段と、前記所定の距離だけ離れた点より先端寄
りの点で前記光ファイバを押圧保持する押圧手段とを有
し、前記アダプタが、前記プラグと嵌合する際に、前記
光ファイバの先端を受け入れて調芯を行う調芯手段と、
前記押圧手段を押し上げて該押圧手段の押圧保持から前
記光ファイバを解放する解放手段とを有することを特徴
とする光多芯コネクタが得られる。According to the present invention, there are provided two plugs for fixing and holding the ends of a plurality of optical fibers, respectively, and the plurality of plugs which are fitted to the two plugs and one of which is fixedly held. An optical multi-core connector having an optical fiber and an adapter for connecting the plurality of optical fibers fixedly held by the other plug, wherein the plug separates the plurality of optical fibers from a tip by a predetermined distance. Fixing means for fixing, and pressing means for pressing and holding the optical fiber at a point closer to the distal end than a point separated by the predetermined distance, wherein when the adapter is fitted with the plug, the optical fiber Alignment means for accepting the tip of
Release means for lifting up the pressing means to release the optical fiber from the pressing and holding of the pressing means, thereby obtaining an optical multi-core connector.
【００１０】[0010]
【実施例】以下に図面を参照して本発明の実施例を説明
する。図１に本発明の一実施例の多芯光コネクタを示
す。本実施例の多芯光コネクタは、図１（ａ）に示すよ
うに、複数の光ファイバ１１をそれぞれ固定保持する２
つのプラグ１２と、これら２つのプラグ１２と嵌合し、
複数の光ファイバ１１を相互に接続するアダプタ１３と
を有している。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a multi-core optical connector according to an embodiment of the present invention. As shown in FIG. 1A, the multi-core optical connector according to the present embodiment is configured to fix and hold a plurality of optical fibers 11 respectively.
Two plugs 12 and these two plugs 12
An adapter 13 for connecting the plurality of optical fibers 11 to each other.
【００１１】プラグ１２は、図１（ａ）及び（ｂ）に示
すように、光ファイバ１１を芯線部（ＵＶ被覆を有する
部分）で固定保持するためのクランプ（図２参照）を備
えたプラグ本体１４と、光ファイバの素線部（先端部で
あってコアとクラッドより成る裸光ファイバ）をプラグ
本体１４に押圧保持するためにプラグ本体１４に固定さ
れた板バネ１５と、アダプタ１３との嵌合状態を維持す
るフック１６が形成されたプラグカバー１７とを有して
いる。As shown in FIGS. 1A and 1B, the plug 12 is provided with a clamp (see FIG. 2) for fixing and holding the optical fiber 11 at a core portion (a portion having a UV coating). A main body 14, a leaf spring 15 fixed to the plug main body 14 for pressing and holding an optical fiber portion (a bare optical fiber which is a distal end portion and comprising a core and a clad) to the plug main body 14, And a plug cover 17 on which a hook 16 for maintaining the fitting state is formed.
【００１２】一方、アダプタ１３は、プラグ本体１４が
差し込まれるアダプタ本体１８と、プラグ本体１８上に
所定の間隔で配列固定され、プラグ１２とアダプタ１３
とを嵌合させたときに光ファイバ１１の先端を相互に接
続する調芯用精密Ｖ溝１９と、フック１６を掛けるため
のフック用窓２０が形成されたアダプタカバー２１とを
有している。なお、アダプタ本体１８には、プラグ１２
が差し込まれたとき、板バネ１５を押し上げるための凸
部２２が形成されている。また、調芯用精密Ｖ溝１９の
上部にはガイド板２３が取り付けられている。On the other hand, the adapter 13 is arranged and fixed at predetermined intervals on the adapter body 18 into which the plug body 14 is inserted.
Has a precision V-groove 19 for aligning the ends of the optical fiber 11 when they are fitted to each other, and an adapter cover 21 in which a hook window 20 for hooking the hook 16 is formed. . The adapter body 18 has a plug 12
When the is inserted, a convex portion 22 for pushing up the leaf spring 15 is formed. A guide plate 23 is attached to the upper part of the alignment precision V groove 19.
【００１３】プラグ本体１４はその断面が凸型で、アダ
プタ本体１８に嵌合したとき、光ファイバが載置されて
いる面と、アダプタ本体１８の上面とは実質的に同一平
面を形成する。The plug main body 14 has a convex cross section, and when fitted to the adapter main body 18, the surface on which the optical fiber is mounted and the upper surface of the adapter main body 18 form substantially the same plane.
【００１４】この光コネクタでは、プラグ１２とアダプ
タ１３とを嵌合させる際に、光ファイバ１１の先端が、
スムーズに調芯用精密Ｖ溝１９に挿入されるように、予
め、光ファイバ１１の先端を所定の間隔で配列させ、板
バネ１５で押圧保持させている。この状態で、プラグ１
２とアダプタ１３とを嵌合させていくと、光ファイバ１
１の先端が、調芯用精密Ｖ溝１９に挿入される。この
後、アダプタ本体１８に形成された凸部２２は、板バネ
１５の一部に接触して板バネ１５を持ち上げる。これに
より、光ファイバ１１の先端部は、板バネ１５から解放
される。もう一つのプラグ１２も、上記プラグと同様に
してアダプタ１３と嵌合させることができる。２つのプ
ラグ１２をアダプタ１３と嵌合させた状態の光コネクタ
の縦断面図を図２（ａ）に、横断面図を図２（ｂ）に示
す。In this optical connector, when the plug 12 and the adapter 13 are fitted together, the tip of the optical fiber 11
The ends of the optical fibers 11 are previously arranged at predetermined intervals so as to be smoothly inserted into the precision V-grooves 19 for centering, and are pressed and held by the leaf springs 15. In this state, plug 1
When the optical fiber 2 and the adapter 13 are fitted together, the optical fiber 1
1 is inserted into the precision V-groove 19 for alignment. Thereafter, the convex portion 22 formed on the adapter main body 18 comes into contact with a part of the leaf spring 15 to lift the leaf spring 15. As a result, the distal end of the optical fiber 11 is released from the leaf spring 15. Another plug 12 can be fitted to the adapter 13 in the same manner as the above plug. FIG. 2A shows a longitudinal sectional view of the optical connector in a state where the two plugs 12 are fitted to the adapter 13, and FIG. 2B shows a transverse sectional view thereof.
【００１５】２つのプラグ１２をアダプタ１３と嵌合さ
せたとき、調芯用精密Ｖ溝１９内では、２つの光ファイ
バの端面が互いに密着しなければならない。そこで、光
ファイバは、接続に必要な長さよりも若干長めに設定
し、図２（ａ）に示すように、調芯用精密Ｖ溝１９とク
ランプ２４との間で、双方の光ファイバ１１にたわみが
発生するようにしておく。このたわみによる光ファイバ
の復元力が、２つの光ファイバの端面を密着させる。When the two plugs 12 are fitted with the adapter 13, the end faces of the two optical fibers must be in close contact with each other in the precision V-groove 19 for alignment. Therefore, the optical fiber is set to be slightly longer than the length required for the connection, and as shown in FIG. Allow deflection to occur. The restoring force of the optical fiber due to this bending brings the end faces of the two optical fibers into close contact.
【００１６】[0016]
【発明の効果】本発明によれば、光ファイバの接続を調
芯手段を用いて行うようにしたことで、光ファイバ素線
同士の接続が可能となり、小型の光多芯コネクタが得ら
れる。また、光ファイバの先端付近を押圧手段で押圧保
持するようにしたことで、調芯手段への光ファイバの挿
入が容易かつ確実に行える。According to the present invention, since the connection of the optical fibers is performed by using the alignment means, the connection of the optical fibers can be performed, and a compact optical multi-core connector can be obtained. Further, since the vicinity of the distal end of the optical fiber is pressed and held by the pressing means, the insertion of the optical fiber into the alignment means can be performed easily and reliably.
【００１７】さらに、プラグをアダプタに接続したあと
は、押圧手段から光ファイバを解放する解放手段を設け
たことで、光ファイバに傷をつけることがなく、折損を
防ぐことができる。Further, after the plug is connected to the adapter, the release means for releasing the optical fiber from the pressing means is provided, so that the optical fiber is not damaged and breakage can be prevented.
【図１】本発明の一実施例を示す（ａ）斜視図、及び
（ｂ）部分断面斜視図である。FIG. 1A is a perspective view showing an embodiment of the present invention, and FIG.
【図２】図１の光多芯コネクタの（ａ）縦断面図、及び
（ｂ）横断面図である。2A is a longitudinal sectional view and FIG. 2B is a transverse sectional view of the optical multi-core connector of FIG.
【図３】従来の光多芯コネクタの部分断面斜視図であ
る。FIG. 3 is a partial sectional perspective view of a conventional optical multi-core connector.
１１ 光ファイバ １２ プラグ １３ アダプタ １４ プラグ本体 １５ 板バネ １６ フック １７ プラグカバー １８ アダプタ本体 １９ 調芯用精密Ｖ溝 ２０ フック用窓 ２１ アダプタカバー ２２ 凸部 ２３ ガイド板 ２４ クランプ ３１ コネクタハウジング ３２ 光ファイバ芯線 ３３ 固定部材 ３４ 光ファイバ素線 ３５ バネ部材 ３６ Ｖ字溝 DESCRIPTION OF SYMBOLS 11 Optical fiber 12 Plug 13 Adapter 14 Plug main body 15 Leaf spring 16 Hook 17 Plug cover 18 Adapter main body 19 Precision V-groove for alignment 20 Hook window 21 Adapter cover 22 Convex part 23 Guide plate 24 Clamp 31 Connector housing 32 Optical fiber core wire 33 Fixing member 34 Optical fiber 35 Spring member 36 V-shaped groove
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G02B 6/24 G02B 6/36 - 6/40 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) G02B 6/24 G02B 6/ 36-6/40
Claims (4)
保持する２つのプラグと、該２つのプラグと嵌合し、一
方のプラグが固定保持する前記複数の光ファイバと他方
のプラグが固定保持する前記複数の光ファイバとを接続
するアダプタとを有する光多芯コネクタにおいて、前記
プラグが、前記複数の光ファイバを先端から所定の距離
だけ離れた点で固定する固定手段と、前記所定の距離だ
け離れた点より先端寄りの点で前記光ファイバを押圧保
持する押圧手段とを有し、前記アダプタが、前記プラグ
と嵌合する際に、前記光ファイバの先端を受け入れて調
芯を行う調芯手段と、前記押圧手段を押し上げて該押圧
手段の押圧保持から前記光ファイバを解放する解放手段
とを有することを特徴とする光多芯コネクタ。1. Two plugs for fixing and holding the ends of a plurality of optical fibers, respectively, and the plurality of optical fibers which are fitted with the two plugs, one of which is fixed and held, and the other is fixedly held An optical multi-core connector having an adapter for connecting the plurality of optical fibers to the plurality of optical fibers, wherein the plug fixes the plurality of optical fibers at a point separated from a tip by a predetermined distance, and the predetermined distance Pressing means for pressing and holding the optical fiber at a point closer to the distal end than a point away from the optical fiber, wherein the adapter receives the distal end of the optical fiber and performs alignment when the adapter is fitted with the plug. An optical multi-fiber connector comprising: a core means; and a release means for pushing up the pressing means to release the optical fiber from holding the pressing means.
放手段が前記板バネを押し上げる凸部であることを特徴
とする請求項１の光多芯コネクタ。2. The optical multi-core connector according to claim 1, wherein said pressing means is a leaf spring, and said releasing means is a convex portion for pushing up said leaf spring.
合したとき、前記複数の光ファイバにたわみが発生する
様に、前記所定の距離を決定したことを特徴とする請求
項１の光多芯コネクタ。3. The optical fiber according to claim 1, wherein the predetermined distance is determined so that when the two plugs and the adapter are fitted together, the plurality of optical fibers bend. Core connector.
保持する２つのプラグと、該２つのプラグと嵌合し、一
方のプラグが固定保持する前記複数の光ファイバと他方
のプラグが固定保持する前記複数の光ファイバとを接続
するアダプタとを有する光多芯コネクタにおいて、前記
プラグが、前記アダプタに嵌合するプラグ本体と、該プ
ラグ本体の前方に前記複数の光ファイバの先端を突出さ
せて該複数の光ファイバの所定部分を前記プラグ本体の
第１の面に固定する固定部材と、前記所定部分よりも先
端側で前記複数の光ファイバを前記第１の面に押圧する
弾性部材とを有し、前記アダプタが、前記プラグ本体上
面を露出させた状態で前記プラグ本体と嵌合し、前記第
１の面と実質的に同一平面を形成する第２の面を有する
アダプタ本体と、前記第２の面に配列固定され前記複数
の光ファイバが挿入されるＶ溝と、前記アダプタに前記
プラグを嵌合させたとき、前記弾性部材を押し上げて前
記光ファイバを解放する前記第２の面に形成された凸部
とを有することを特徴とする光多芯コネクタ。4. Two plugs for fixing and holding the ends of a plurality of optical fibers, respectively, and the plurality of optical fibers which are fitted with the two plugs, one of which is fixed and held, and the other is fixedly held. In the optical multi-core connector having an adapter for connecting the plurality of optical fibers, the plug has a plug main body fitted to the adapter, and a tip of the plurality of optical fibers protruding forward of the plug main body. A fixing member for fixing predetermined portions of the plurality of optical fibers to a first surface of the plug main body; and an elastic member for pressing the plurality of optical fibers against the first surface on a tip side of the predetermined portion. An adapter body having a second surface that fits with the plug body in a state where the upper surface of the plug body is exposed, and has a second surface that is substantially flush with the first surface. Previous And a V-groove in which the plurality of optical fibers are inserted and fixed on the second surface, and the second elastic member is pushed up to release the optical fiber when the plug is fitted to the adapter. An optical multi-core connector having a convex portion formed on a surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4542895A JP2896860B2 (en) | 1995-03-06 | 1995-03-06 | Optical multi-core connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4542895A JP2896860B2 (en) | 1995-03-06 | 1995-03-06 | Optical multi-core connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08240746A JPH08240746A (en) | 1996-09-17 |
| JP2896860B2 true JP2896860B2 (en) | 1999-05-31 |
Family
ID=12719029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4542895A Expired - Fee Related JP2896860B2 (en) | 1995-03-06 | 1995-03-06 | Optical multi-core connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2896860B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100409112B1 (en) * | 1998-06-29 | 2003-12-11 | 니폰 덴신 덴와 가부시끼가이샤 | Optical fiber connector plug, optical fiber connector plug assembly, and optical fiber connector plug assembly connecting structure |
| WO2004113981A1 (en) * | 2003-06-18 | 2004-12-29 | Asahi Glass Company, Limited | Optical connector |
| JP4153418B2 (en) | 2003-12-16 | 2008-09-24 | 株式会社巴川製紙所 | Optical connection structure |
| JP4799362B2 (en) * | 2006-10-18 | 2011-10-26 | 日本航空電子工業株式会社 | Optical connector |
| JP2010175760A (en) * | 2009-01-29 | 2010-08-12 | Advanced Cable Systems Corp | Optical connector and method of splicing secondary coated optical fibers |
-
1995
- 1995-03-06 JP JP4542895A patent/JP2896860B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08240746A (en) | 1996-09-17 |
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