JPS5891418A - Optical plug relay sleeve - Google Patents
Optical plug relay sleeveInfo
- Publication number
- JPS5891418A JPS5891418A JP19009281A JP19009281A JPS5891418A JP S5891418 A JPS5891418 A JP S5891418A JP 19009281 A JP19009281 A JP 19009281A JP 19009281 A JP19009281 A JP 19009281A JP S5891418 A JPS5891418 A JP S5891418A
- Authority
- JP
- Japan
- Prior art keywords
- plug
- sleeve
- optical
- optical plug
- relay
- 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
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
- G02B6/24—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
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/3822—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with beveled fibre ends
-
- 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
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- 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
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
-
- 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
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
- G02B6/3861—Adhesive bonding
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】
この発明は、光フアイバケーブル同士を結合する為の光
プラグ中継スリーブに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical plug relay sleeve for coupling optical fiber cables together.
光通信に用いられる光フアイバケーブルは、光フアイバ
同士、又は光電変換素子と結合されなければならない。Optical fiber cables used for optical communications must be coupled to each other or to a photoelectric conversion element.
この為光フアイバケーブルの端部には、金属製或はプラ
スチック製の筒状体（プラグ）を固着する。For this purpose, a cylindrical body (plug) made of metal or plastic is fixed to the end of the optical fiber cable.
このようなプラグをさらに、プラスチック製等のコネク
タに収め、雌雄コネクタを結合するようになっている。Such a plug is further housed in a connector made of plastic or the like, and the male and female connectors are connected together.
ここで雄型のコネクタというのは、プラグの前面部が露
出しているものをいう。雌型コネクタは、これに対し、
プラグの前面がスリーブで覆われているものをいう。Here, the term "male connector" refers to one in which the front part of the plug is exposed. Female connectors, on the other hand,
A plug whose front side is covered with a sleeve.
第１０図は従来例に係るスリーブの断面図を示す。FIG. 10 shows a sectional view of a sleeve according to a conventional example.
スリーブ２０は、円筒状の外周面を有し、内部には、円
錐内面２１ 、２１が形成しである。先の細いプラグ２
３を、両側の円錐内面２１へ挿入し、中心線２４に於て
、２つのプラグ端面を接触させる。The sleeve 20 has a cylindrical outer peripheral surface, and has conical inner surfaces 21, 21 formed inside. Tapered plug 2
3 into the conical inner surfaces 21 on both sides, and bring the two plug end faces into contact at the center line 24.
左右のプラグの中心軸線が一致しなければならな区ので
、スリーブの内面は、切削加工により精度良く仕上げな
ければいけない。しんちゅう等の金属を切削し、精度良
く製作するのであるから、極めて加工費が高い。スリー
ブは数多く使用されるから、安価である事が望ましい。Since the center axes of the left and right plugs must match, the inner surface of the sleeve must be finished with high precision by cutting. Since it involves cutting metal such as brass and manufacturing it with high precision, processing costs are extremely high. Since many sleeves are used, it is desirable that they be inexpensive.
また、従来のスリーブは、それ自体にプラグを掛止する
機能が、なかった。この為、雌型、雄型コネクタに、２
つのプラグを内蔵し、プラグを互に結合方向へ押出すた
めのスプリングをコネクタ内に設けなければならなかっ
た。Further, the conventional sleeve did not have the function of latching the plug on itself. For this reason, there are 2
Two plugs were built into the connector, and a spring had to be provided inside the connector to push the plugs toward each other.
この為、光フアイバケーブルと光フアイバケーブルとの
単純な結合構造であるのに、この部分が極めて高価にな
り、光通信システムの全体の価格を押上げてしまう。For this reason, although it is a simple coupling structure between optical fiber cables, this part becomes extremely expensive, pushing up the price of the entire optical communication system.
本発明はこのような欠点を解決したスリーブを与える事
を目的とする。The object of the present invention is to provide a sleeve that solves these drawbacks.
本発明の光プラグ中継スリーブは、筒状体で、内部空間
に弾性体の押え片を２以上設けたものである。The optical plug relay sleeve of the present invention is a cylindrical body, and has two or more elastic pressing pieces provided in the internal space.
以下、実施例を示す図面によって、本発明の構成、作用
、及び効果を説明する。Hereinafter, the configuration, operation, and effects of the present invention will be explained with reference to drawings showing examples.
第１図は本発明の実施例に係る光プラグ中継スリーブの
正面図、第２図は平面図である。第３図、第４図、第５
図、第６図は、第１図中の四−冒、ＩＶ−ｆｆ、Ｖ−■
、Ｖｌ−ＶＩ断面図である。FIG. 1 is a front view of an optical plug relay sleeve according to an embodiment of the present invention, and FIG. 2 is a plan view. Figure 3, Figure 4, Figure 5
Figure 6 shows 4-blank, IV-ff, V-■ in Figure 1.
, is a Vl-VI cross-sectional view.
スリーブ１は弾性のある金属又はプラスチック筒体で、
２箇所に弾力性のある押え片２，２が設けられる。この
例では、単純な金属筒を、表面にコの字型の切り溝３，
３を切り欠き、切り溝３によって三方を囲まれた部分を
内側へ曲げ塑性変形させて押え片２としている。The sleeve 1 is an elastic metal or plastic cylinder,
Elastic presser pieces 2, 2 are provided at two locations. In this example, we will use a simple metal tube with a U-shaped cut groove 3 on its surface.
3 is cut out, and the portion surrounded on three sides by the cut groove 3 is bent inward and plastically deformed to form the presser piece 2.
第３図〜第５図に見るように押え片２，２はスリーブの
曲率半径より、小さい曲率半径の円弧状の断面を有する
。切り溝３の軸中心線に対する中心角θは６０°〜１５
００程度である。As shown in FIGS. 3 to 5, the holding pieces 2, 2 have an arcuate cross section with a radius of curvature smaller than that of the sleeve. The central angle θ of the kerf 3 with respect to the axis center line is 60° to 15
It is about 00.
スリーブ１の両端はプラグ差込口４，４となっており、
端縁が拡開した拡径部５としである。Both ends of the sleeve 1 are plug insertion ports 4, 4.
This is an enlarged diameter portion 5 whose end edge is enlarged.
自由状態に於て、押え片２は内部空間６の中へ突出して
いる。In the free state, the holding piece 2 projects into the interior space 6.
第７図によって、本発明の中継スリーブへ、光プラグを
取付けた状態を説明する。The state in which the optical plug is attached to the relay sleeve of the present invention will be explained with reference to FIG.
左方の光プラグ１０は、中継スリーブ１へ差込んだ状態
を示している。右方の光プラグ１ｏは、断面を示してお
り、この中に光フアイバケーブル１１を固着した状態を
表わす。The left optical plug 10 is shown inserted into the relay sleeve 1. The optical plug 1o on the right side shows a cross section, and shows a state in which an optical fiber cable 11 is fixed therein.
光フアイバケーブル１１は、同心円状に、中心から、光
フアイバ芯線１２、補強材１３、被覆１４を設けたもの
である。The optical fiber cable 11 has an optical fiber core 12, a reinforcing material 13, and a coating 14 arranged concentrically from the center.
光プラグ１０は、内部に軸方向の貫通穴が穿たれており
、後方は直径の広い、ケーブル通し穴１５、前方は狭い
芯線通し穴１６となっている。光ファイ 。The optical plug 10 has an axial through hole bored inside thereof, with a wide diameter cable passage hole 15 at the rear and a narrow core wire passage hole 16 at the front. Optical fiber.
バケーブル１１は先端の被覆１４、補強材１３の一部を
切除し、接着剤１７を塗付して、光プラグ１０のケーブ
ル通し穴１５から差込み、光プラグ１０に固着しである
。The cover 14 and reinforcing material 13 at the tip of the optical fiber cable 11 are partially removed, adhesive 17 is applied, and the fiber cable 11 is inserted through the cable passage hole 15 of the optical plug 10 and fixed to the optical plug 10.
この光プラグ１０の前方は、もはや円錐面ではない。直
径が一定の円筒面１８となっている。このような２つの
光プラグ１０ 、１０を、中継スリーブ１の両端のプラ
グ差込口４，４から差入れる。The front of this optical plug 10 is no longer a conical surface. It has a cylindrical surface 18 with a constant diameter. These two optical plugs 10, 10 are inserted through the plug insertion ports 4, 4 at both ends of the relay sleeve 1.
光プラグ１０は、先端の面取り部１９で押え片２を押し
上げて進む。The optical plug 10 advances by pushing up the presser piece 2 with the chamfered portion 19 at the tip.
左右から差入れられた光プラグ１０ 、１０は、スリー
ブの中点Ｍの近傍で接触する。この状態で、押え片２は
光プラグ１０へ押圧力を及ぼしている。従って、この状
態は、押え片２の弾性力によって維持される。The optical plugs 10, 10 inserted from the left and right come into contact near the midpoint M of the sleeve. In this state, the holding piece 2 is exerting a pressing force on the optical plug 10. Therefore, this state is maintained by the elastic force of the presser piece 2.
こうして、２の光プラグは、このスリーブによって接続
（中継）される。In this way, the two optical plugs are connected (relayed) by this sleeve.
第８図は、他の実施例に係る光プラグ中継スリーブの断
面図である。FIG. 8 is a sectional view of an optical plug relay sleeve according to another embodiment.
この実施例では、押え片２が、長手方向に対し、傾角を
成すよう、内方へ折り曲げられている。この押え片２は
、光プラグ１０を差入れる方向の運動に対しては何ら支
障とならない。しかし、光プラグが抜ける方向の運動に
対しては強い抵抗力を発揮する。In this embodiment, the presser piece 2 is bent inward so as to form an oblique angle with respect to the longitudinal direction. This holding piece 2 does not interfere with the movement of the optical plug 10 in the direction of insertion. However, it exerts a strong resistance against movement in the direction in which the optical plug is pulled out.
第９図は他の実施例を示す光プラグ中継スリーブの断面
図である。FIG. 9 is a sectional view of an optical plug relay sleeve showing another embodiment.
この実施例で、押え片２は、長手方向に対し傾いた形状
であるが、途中で上方へ折れている。くの字型断面の押
え片である。In this embodiment, the presser piece 2 has an inclined shape with respect to the longitudinal direction, but is bent upward in the middle. This is a holding piece with a dogleg-shaped cross section.
その他、押え片の形状は任意である。In addition, the shape of the holding piece is arbitrary.
また、ひとつの光プラグを押えるのに、ひとつの押え片
が用いられているが、２以上の押え片を使用してもよい
。Further, although one holding piece is used to hold one optical plug, two or more holding pieces may be used.
本発明は、単純な筒体の内部空間に２以上の押え片を設
けただけで中継スリーブを構成するから次の効果がある
。The present invention has the following effects because the relay sleeve is constructed by simply providing two or more presser pieces in the inner space of a simple cylinder.
ひとつは、中継スリーブが非常に安価になる、という事
である。金属塊から切削加工するのではなく、筒状体か
ら出発し、押え片を起すだけで良いからである。One is that the relay sleeve becomes very inexpensive. This is because instead of cutting from a metal block, it is sufficient to start from a cylindrical body and simply raise the presser piece.
金属筒であれば、切り溝３を入れて、押え片を曲げれば
良いので、簡単なプレス加工で瞬時に製作できる。If it is a metal cylinder, all you have to do is cut the grooves 3 and bend the presser piece, so it can be manufactured instantly with simple press processing.
プラスチックであれば、射出成型法で多数のものを一挙
に製造しうる。If it is plastic, many products can be manufactured at once using injection molding.
さらに、本発明のスリーブは、押え片の弾性力により、
自ら光プラグを把持できる。従って、中継スリーブだけ
で、２の光フアイバケーブルを連結する事も可能である
。Furthermore, the sleeve of the present invention has the elastic force of the presser piece.
Can hold the optical plug by itself. Therefore, it is also possible to connect two optical fiber cables using only a relay sleeve.
またコネクタの中へ内蔵する場合でも、スプリングのよ
うな弾性部材で、プラグを強く押しつけあう必要がない
。コネクタ構造が極めて単純なものになり、コネクタの
コストダウンにもつながる。Furthermore, even when built into a connector, there is no need to forcefully press the plugs together using an elastic member such as a spring. The connector structure becomes extremely simple, which also leads to a reduction in the cost of the connector.
このように、有用な発明である。In this way, it is a useful invention.
第１図は本発明の実施例に係る光プラグ中継スリーブの
正面図。
第２図は第１図と同じ中継スリーブの平面図。
第３図は第１図中のｌ−ｌ断面図。
第４図は第１図中のＩＶ−ＩＶ断面図。
第５図は第１図中の■−■断面図。
第６図は第１図中のＶｌ−Ｖｌ断面図。
第７図は中継スリーブに光プラグを差入れる状態を示す
断面図。
第８図は他の実施例に係る光プラグ中継スリーブの断面
図。
第９図は第３の実施例に係る光プラグ中継スリーテの断
面図。
第１０図は従来例に係るスリーブの断面図。
１・・・・中継スリーブ
２・・・・・・押 え 片
３・・・・切 リ 溝
４・・・・ プラグ差込口
５・・・・・拡径部
発 明 者 藤 谷 光 弘
林 享三
特許出願人 住友電気工業株式会社
第１図
第６図
第３図 。４゜
第２図
第５図 第１０図
第７
第８図
一
第９図FIG. 1 is a front view of an optical plug relay sleeve according to an embodiment of the present invention. FIG. 2 is a plan view of the same relay sleeve as FIG. 1. FIG. 3 is a sectional view taken along the line l-l in FIG. 1. FIG. 4 is a sectional view taken along line IV-IV in FIG. FIG. 5 is a sectional view taken along the line ■-■ in FIG. FIG. 6 is a sectional view taken along line Vl-Vl in FIG. FIG. 7 is a sectional view showing the state in which the optical plug is inserted into the relay sleeve. FIG. 8 is a sectional view of an optical plug relay sleeve according to another embodiment. FIG. 9 is a sectional view of an optical plug relay sleet according to the third embodiment. FIG. 10 is a sectional view of a sleeve according to a conventional example. 1... Relay sleeve 2... Presser piece 3... Cut groove 4... Plug insertion port 5... Expanded diameter part Inventor: Mitsuhiro Fujitani Kyozo Hayashi Patent applicant Sumitomo Electric Industries, Ltd. Figure 1 Figure 6 Figure 3. 4゜Figure 2Figure 5Figure 10Figure 7Figure 8-Figure 9
Claims (1)
を特徴とする光プラグ中継スリーブ。An optical plug relay sleeve characterized by having a cylindrical body and having two or more holding pieces of elastic material provided in the inner space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19009281A JPS5891418A (en) | 1981-11-26 | 1981-11-26 | Optical plug relay sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19009281A JPS5891418A (en) | 1981-11-26 | 1981-11-26 | Optical plug relay sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5891418A true JPS5891418A (en) | 1983-05-31 |
Family
ID=16252229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19009281A Pending JPS5891418A (en) | 1981-11-26 | 1981-11-26 | Optical plug relay sleeve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5891418A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330807A (en) * | 1986-07-24 | 1988-02-09 | Kyocera Corp | Optical fiber connector |
| US5341446A (en) * | 1992-08-25 | 1994-08-23 | Yamaichi Electronics Co., Ltd. | Optical connector |
-
1981
- 1981-11-26 JP JP19009281A patent/JPS5891418A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330807A (en) * | 1986-07-24 | 1988-02-09 | Kyocera Corp | Optical fiber connector |
| US5341446A (en) * | 1992-08-25 | 1994-08-23 | Yamaichi Electronics Co., Ltd. | Optical connector |
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