JPS59109012A - Optical multiconnector - Google Patents

Optical multiconnector

Info

Publication number
JPS59109012A
JPS59109012A JP21865382A JP21865382A JPS59109012A JP S59109012 A JPS59109012 A JP S59109012A JP 21865382 A JP21865382 A JP 21865382A JP 21865382 A JP21865382 A JP 21865382A JP S59109012 A JPS59109012 A JP S59109012A
Authority
JP
Japan
Prior art keywords
core
fiber
optical
optical connector
holder
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
Application number
JP21865382A
Other languages
Japanese (ja)
Inventor
Tomoji Sumiya
角谷　友二
Yoshio Sano
佐野　善雄
Yoshio Kashima
鹿島　吉夫
Taro Ueno
太郎 上野
Muneo Higashiya
東谷　宗郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP21865382A priority Critical patent/JPS59109012A/en
Publication of JPS59109012A publication Critical patent/JPS59109012A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3823—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing surplus lengths, internal fibre loops
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3817—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing optical and electrical conductors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

PURPOSE:To hold each core fiber of multiple optical fibers each having excess of length by installing a core fiber holder having plural bent grooves in the inside of an optical connector. CONSTITUTION:Each core fiber 1 of optical fibers is connected by adhesion to each ferrule 3 of an optical connector so as to give an excess of length and to hold each fiber along the outermost bent groove of a core fiber holder 2 having plural bent grooves. Even if any of the core fibers 1 is failed in connection and it needs to be cut at the connected point, only this fiber 1 is reconnected to the ferrule 3 and the shortened fiber is reheld on the inside groove of the holder 2. The function of the connector is thus restored.

Description

【発明の詳細な説明】 不発明は、多心光ファイバの心＆に保持する元ファイバ
心級ホルダ’ｔ−ｗするマルチ光コネクタに関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-optical connector for holding a multi-core optical fiber in a core-grade holder.

第１図は、従来の心線ホルダをＭするマルチ光コネクタ
の断面図でｆｔ）シ、１は光フアイバ心線、２は心線ホ
ルダ、３はフェルール、４はハウシング、５は元ファイ
バケーブルである。また第２図は、従来の心線ホルダで
ある。心線ホルダは、マルチ光コネクタの内部で各心線
全整列保持し、フェルールに余分な力が加わらないより
ＶＣするためのものである。心線ホルダは、長手方向に
元ファイバ心＊ｔ−貫通させるための穴が開いており、
その穴全通しで光フアイバ心線がセットされる。このよ
うに従来の心線ホルダは単に元ファイバ心線を整列保持
するという役割しか有しておらず、光フアイバ心線に余
裕の長さを設けることはできなかった。多心光ファイバ
の光コネクタでは、多心光ファイバケーブルの各心線の
長さをそろえて切断した後フェルールを各心線に接着１
足する方法がとられているが、この接層、研磨工程で光
ファイバにクラックに入ることが多かった。これは以下
のような理由のためである。マルチ光コネクタの場合、
単心光コネクタに比べかなり大きくなって扱いにくくな
るといつことからできるだけコンパクトにするためコネ
クタの全長も短かくする必装がある。ところがその全長
が短かくなると多心光フアイバケーブルの外皮をむいて
心線が出ているところ卆らフェルール先端１での長さが
短かくなり、多心光ファイバの各心線の長さに余裕のな
い状態となる。このため各心線のナイロンコートの除去
、フェルールの接層、研磨等の作業がやりづらく、その
際に元ファイバの谷心＆ｌ全折ったり傷つけたシするこ
とが比較的多かった。それで、多心の光フアイバ心線の
どれか１本がフェルール内部でクラックが入ったシ折れ
ていたりすると、全てのフェルールを切り取シフェルー
ルをっけ直さなくてはならず、フェルールの浪費１組立
のやり直しを招き、マルチ光コネクタの製作上、経済的
１時間的、労力的に大きな問題となっていた。Figure 1 is a cross-sectional view of a multi-optical connector with a conventional fiber holder. 1 is the optical fiber core, 2 is the core holder, 3 is the ferrule, 4 is the housing, and 5 is the original fiber cable. It is. Moreover, FIG. 2 shows a conventional core wire holder. The core wire holder is used to maintain the complete alignment of the core wires inside the multi-optical connector and to perform VC without applying extra force to the ferrule. The core holder has a hole in the longitudinal direction for passing through the original fiber core.
The optical fiber is set through the entire hole. As described above, the conventional core wire holder only has the role of simply aligning and holding the original core core fibers, and it has not been possible to provide the optical fiber core wire with an extra length. In optical connectors for multi-core optical fibers, after cutting each fiber of the multi-core optical fiber cable to the same length, a ferrule is glued to each fiber.
However, cracks often occur in the optical fiber during this layering and polishing process. This is for the following reasons. For multi-optical connectors,
Since it becomes considerably larger than a single-fiber optical connector and becomes difficult to handle, it is necessary to shorten the overall length of the connector in order to make it as compact as possible. However, as the total length becomes shorter, the length at the tip 1 of the ferrule, where the outer sheath of the multi-core optical fiber cable is peeled and the core wires come out, becomes shorter, and the length of each fiber in the multi-core optical fiber becomes shorter. It becomes a situation where there is no leeway. For this reason, it is difficult to perform operations such as removing the nylon coat from each core fiber, attaching the ferrule to the ferrule, and polishing, and it is relatively common for the original fiber to be completely broken or damaged during this process. Therefore, if any one of the multi-core optical fibers is cracked or broken inside the ferrule, all the ferrules must be cut out and the ferrule replaced, resulting in a waste of ferrules. This posed a major problem in terms of economics, time, and labor in manufacturing the multi-optical connector.

不発明は、その大きな問題点を解決するために光フアイ
バ心線ホルダを、多心の光フアイバケーブルの各心線に
余裕の長さをもたせて保持できるようにしたものである
。以下図面について詳細に説明する。In order to solve this major problem, the present invention provides an optical fiber holder that can hold each core of a multi-core optical fiber cable with a sufficient length. The drawings will be explained in detail below.

化３図は不発明の実施例でろって、１は元ファイバ心線
、２は心線ホルダ、５はフェルール、４はハウジング、
５は元ファイバケーブルであり、マルチ光コネクタを示
している。第４図は元ファイバ心線ホルダの詳細図で６
　！Ｄ　、（ａ）は上から見た平面図、（ｂ）は横から
見ｆｃ断面図である。１は元ファイバ心線、２は心線ホ
ルダ、６は溝部である。Figure 3 shows an uninvented embodiment, where 1 is the original fiber core, 2 is the core holder, 5 is the ferrule, 4 is the housing,
5 is an original fiber cable and shows a multi-optical connector. Figure 4 is a detailed diagram of the original fiber core holder.
! D, (a) is a plan view seen from above, and (b) is an fc sectional view seen from the side. 1 is the original fiber core, 2 is a core holder, and 6 is a groove.

この心線ホルダでは溝部はほぼ平行に並んでいるが、両
端部はそれぞれ内側に湾曲されている簡単なものである
。第５図は、他の実施例を示すもので、１は光フアイバ
心線、２は心線ホルダ、６は溝部、７は切シ欠きでろシ
、溝部は同心円状に複数存在し、光フアイバ心線の出し
入れのための切シ欠きが２ケ所入っている。第６図は他
の実施例の断面図を示すもので、１は元ファイバ、２は
心線ホルダであり、溝部の断面形状が数珠状になってい
る。第７図は他の実施例の断面図であり、１は光フアイ
バ心線、２は心線ホルダ、溝部は元ファイバ心ｆｓを数
本収容できるよう大きくなっている。In this core wire holder, the grooves are arranged substantially parallel to each other, but both ends are curved inward, making it simple. FIG. 5 shows another embodiment, in which 1 is an optical fiber core, 2 is a core holder, 6 is a groove, 7 is a notch, and a plurality of grooves exist concentrically, and the optical fiber is There are two notches for inserting and removing the core wire. FIG. 6 shows a cross-sectional view of another embodiment, in which 1 is the original fiber, 2 is the core holder, and the cross-sectional shape of the groove is bead-shaped. FIG. 7 is a sectional view of another embodiment, in which 1 is an optical fiber core, 2 is a core holder, and the groove is large enough to accommodate several original fiber cores fs.

次に本発明を適安したマルチ光コネクタの組立方法につ
いて述べる。第４図において、光ファイバ心ｌｆＭ１は
、１ず光フアイバ心線ホルダ２の一香外側の溝に沿って
収容できるよう余分に長く（以下単に「余長」と呼ぶ）
しておき、元コネクタのフェルールに接層し接続する。Next, a method of assembling a multi-optical connector using the present invention will be described. In FIG. 4, the optical fiber core lfM1 is extra long (hereinafter simply referred to as "extra length") so that it can be accommodated along the outer groove of the optical fiber core holder 2.
Set it aside and connect it to the ferrule of the original connector.

もしこの接続がどれか１本で失敗し光フアイバ心線１を
接続部で切断しなければならないよりな事態になっても
、元ファイバ心線に余長があるためその失敗し′ｆｃ１
本のみを切断してフェルールをつけ直し、切断により短
かくなった光フアイバ心線は、心線ホルダの次の内側の
溝部に収容するようにするだけで元コネクタの機能を回
復することができる。またさらに接続が失敗しても、同
様にして元ファイバ心線を内側の溝部に収容することに
よシ光ファイバ心線の接続部のやシ直し全することがで
きる。Even if one of these connections fails and the optical fiber 1 has to be cut at the connection point, the failure will occur because the original fiber has extra length.
The function of the original connector can be restored by simply cutting off the main fiber, reattaching the ferrule, and storing the shortened optical fiber core in the next inner groove of the fiber holder. . Furthermore, even if the connection fails, the connection part of the optical fiber can be completely repaired by similarly storing the original fiber in the inner groove.

また、第５図１＃Ｉ：かいて、溝部６全同心円状にし光
フアイバ心線の出し入れのための切シ欠き７を設け、切
シ欠き部で元ファイバ心＋１ｌｌ−交差させることによ
シ、元ファイバ心線が曲けられる曲率はゆるくなシ、余
分な力が元ファイバ心線に加わらなくなる。In addition, FIG. 5 1#I: The groove part 6 is made entirely concentric, and a notch 7 is provided for the insertion and removal of the optical fiber core, and the original fiber core + 1ll- is crossed at the notch part. , the curvature at which the original fiber core is bent is not gentle, and no extra force is applied to the original fiber core.

’ｅｆｃ、第６図において、溝部６の断面形状を数珠状
にすることによシ多数の元ファイバ心線ヲ収容すること
ができる。In FIG. 6, by making the cross-sectional shape of the groove 6 bead-like, it is possible to accommodate a large number of core fibers.

１だ、第７図ｉ／ｃおいて、元ファイバ心線を収容する
溝部６全大きくしておくことによシ多数の光ファイバ心
線ヲ収ｄすることができる。1. In FIG. 7 I/C, a large number of coated optical fibers can be accommodated by making the groove portion 6 for accommodating the original coated fibers completely large.

心線ホルダがこのような構造になっているため、多心の
光フアイバケーブルによる光コネクタにおいて、元ファ
イバ心線とフェルールとの接続部の端面をそろえなくて
はならない時も、その接続部を１本失敗したからといっ
て全ての接続部のや９直しをする心安はなく、その１本
のみをやシ直せば済むようになシ、１尽そのやシ直し回
数も数回行なうことができるので、光コネクタ部品の歩
留シは大きく向上し大変高価であるフェルールの浪費を
防いで経済性を高めるばかシでなく、やシ直しにかかる
労力１時間も従来に比べ大幅に減らすことができるとい
う大きな利点がめる。′ｔｉた、このように多心光フア
イバケーブルの各心線に余長があると、マルチ光コネク
タの胆立時に各心線の長さ全厳密にそろえる必装はなく
なり組立性の向上にもつながる。１だ、この心線ホルダ
を用いれハ多心光ファイバケーブルにおいて、フェルー
ルによるマルチ光コネクタだけでなく、多心スプライシ
ングにも利用することができる、等その効果は非常に大
である。Because the core holder has this structure, even when it is necessary to align the end faces of the connection part between the original fiber core and the ferrule in an optical connector using a multi-core optical fiber cable, the connection part can be easily aligned. There is no need to worry about repairing all the connections just because one fails, and you may have to repair only that one connection several times. This not only greatly improves the yield of optical connector parts and improves economic efficiency by preventing the wastage of very expensive ferrules, but also greatly reduces the hour-long labor required to repair the ferrules compared to conventional methods. There is a big advantage that it can be done. In addition, if each fiber of a multi-core optical fiber cable has extra length, it is no longer necessary to precisely align the lengths of each fiber when constructing a multi-optical connector, which also improves assembly efficiency. Connect. 1. This fiber holder can be used not only for multi-fiber optical connectors using ferrules, but also for multi-fiber splicing in multi-fiber optical fiber cables.It has very great effects.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、従来の心線ホルダ′（Ｉｌ−肩するマルチ光
コネクタの模式断面図であり、第２図はその心線ホルダ
の断面図である。第３図は、不発明によるマルチ光コネ
クタの模式断面図であり、第４〜７図はその心線ホルダ
金示している。 １・・・・・・光フアイバ心線 ２・・・・・・心線ホルダ ５・・・・・・フェルール ４・・・・・・ハウジング ５・・・・・・多心光フアイバケーブル６・・・・・・
溝部 ７・・・・・・切シ久き 以　　　上 第１図 ｊ１２図 ＃１３ＦＢ 第　４　図（α）　　　　　　　　　　第夕　図（αン
第４図（ｂ）　　　　！５ＩＣすFIG. 1 is a schematic sectional view of a conventional multi-optical connector with a fiber holder' (Il-shoulder), and FIG. 2 is a sectional view of the fiber holder. It is a schematic cross-sectional view of the connector, and FIGS. 4 to 7 show its core wire holder. 1... Optical fiber core 2... Core wire holder 5... - Ferrule 4...Housing 5...Multi-core optical fiber cable 6...
Groove 7... Long cut or longer Fig. 1 j12 Fig. #13FB Fig. 4 (α) Fig. 4 (b) !5 IC

Claims (3)

【特許請求の範囲】[Claims] （１）複数本の光ファイバを同時に接続可能な光コネク
タにおいて、前記光コネクタの内部に設置された基板の
主平面上に設けた複数の矢起によシ形成嘔れ、かつその
平面形状において一部或いは全部が湾曲している複数の
溝部を有する元ファイバ心線ホルダを有することを特徴
とするマルチ光コネクタ。(1) In an optical connector that can connect multiple optical fibers at the same time, a plurality of arrowheads provided on the main plane of a board installed inside the optical connector are formed, and the planar shape thereof is 1. A multi-optical connector characterized by having an original fiber core holder having a plurality of grooves, some or all of which are curved. （２）前記特許請求の範囲第１項記軟のマルチ光コネク
タにおいて、複数の同心円状に形成された溝部の２ケ所
に切入きを有する光フアイバ心線ホルダを肩することを
特徴とするマルチ光コネクタ。(2) In the soft multi-optical connector as set forth in claim 1, the multi-optical connector is characterized by carrying an optical fiber core holder having cutouts at two places in a plurality of concentric grooves. optical connector. （３）　　前記特許請求の範囲第１項記載のマルチ光コ
ネクタにおいて、溝部の曲面形状が数珠状である光フア
イバ心線ホルダ’に！することを特徴とするマルチ光コ
ネクタ。(3) In the multi-optical connector according to claim 1, the curved surface shape of the groove portion is bead-shaped. A multi-optical connector that is characterized by:
JP21865382A 1982-12-14 1982-12-14 Optical multiconnector Pending JPS59109012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21865382A JPS59109012A (en) 1982-12-14 1982-12-14 Optical multiconnector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21865382A JPS59109012A (en) 1982-12-14 1982-12-14 Optical multiconnector

Publications (1)

Publication Number Publication Date
JPS59109012A true JPS59109012A (en) 1984-06-23

Family

ID=16723313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21865382A Pending JPS59109012A (en) 1982-12-14 1982-12-14 Optical multiconnector

Country Status (1)

Country Link
JP (1) JPS59109012A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0224807U (en) * 1988-08-03 1990-02-19
JPH02503410A (en) * 1988-03-03 1990-10-18 サイテックス　ディジタル　プリンティング　インコーポレイテッド Ink cartridge and housing structure for multicolor inkjet printing devices
JPH0339911A (en) * 1989-04-14 1991-02-20 Sumitomo Electric Ind Ltd Fiber branching part for multiple coated optical fibers
US5048917A (en) * 1989-10-18 1991-09-17 Adamant Kogyo Co., Ltd. Optical fiber connector and method with a multi-ferrule structure
WO1994020872A1 (en) * 1993-03-04 1994-09-15 Siemens Aktiengesellschaft Optical connecting cable
FR2977685A1 (en) * 2011-07-05 2013-01-11 Legrand France Connector for connecting optical fiber with data source/receiver, has guiding and holding device i.e. data driver support plate, comprising corrugated channel in which fiber is positioned, where device is corrugated along first direction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02503410A (en) * 1988-03-03 1990-10-18 サイテックス　ディジタル　プリンティング　インコーポレイテッド Ink cartridge and housing structure for multicolor inkjet printing devices
JPH0224807U (en) * 1988-08-03 1990-02-19
JPH0339911A (en) * 1989-04-14 1991-02-20 Sumitomo Electric Ind Ltd Fiber branching part for multiple coated optical fibers
US5048917A (en) * 1989-10-18 1991-09-17 Adamant Kogyo Co., Ltd. Optical fiber connector and method with a multi-ferrule structure
WO1994020872A1 (en) * 1993-03-04 1994-09-15 Siemens Aktiengesellschaft Optical connecting cable
FR2977685A1 (en) * 2011-07-05 2013-01-11 Legrand France Connector for connecting optical fiber with data source/receiver, has guiding and holding device i.e. data driver support plate, comprising corrugated channel in which fiber is positioned, where device is corrugated along first direction

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