JPH0435846Y2 - - Google Patents
Info
- Publication number
- JPH0435846Y2 JPH0435846Y2 JP1985050369U JP5036985U JPH0435846Y2 JP H0435846 Y2 JPH0435846 Y2 JP H0435846Y2 JP 1985050369 U JP1985050369 U JP 1985050369U JP 5036985 U JP5036985 U JP 5036985U JP H0435846 Y2 JPH0435846 Y2 JP H0435846Y2
- Authority
- JP
- Japan
- Prior art keywords
- ferrule
- optical fiber
- capillary
- metal
- fiber connector
- 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
- 239000002184 metal Substances 0.000 claims description 36
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 239000013307 optical fiber Substances 0.000 claims description 29
- 239000007769 metal material Substances 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 229910001369 Brass Inorganic materials 0.000 claims description 7
- 239000010951 brass Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000915 Free machining steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は、光通信などの光信号処理に用いる着
脱可能な光フアイバコネクタのフエルールに関す
るものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a ferrule for a detachable optical fiber connector used for optical signal processing such as optical communication.
〈従来の技術〉
一般に光フアイバコネクタは、光フアイバが挿
入・固着されるフエルールと、このフエルール同
志を嵌合・整列する中空円筒状のスリーブから構
成される光フアイバコネクタの場合、接続する２
本のフアイバの相対位置は正確に合わせることが
重要で、このため光フアイバ同志の軸ずれ、角度
曲り等を極めて少なくしなければならない。<Prior Art> In general, an optical fiber connector consists of a ferrule into which an optical fiber is inserted and fixed, and a hollow cylindrical sleeve that fits and aligns the ferrules.
It is important to accurately align the relative positions of the fibers of the book, and for this reason it is necessary to minimize the misalignment of the axes and angular bending of the optical fibers.
従来のフエルールは、第３図に示すような金属
製のフエルール１の中心に光フアイバ素線がぎり
ぎりに入るような微小穴２を明けたもの、第４図
に示すように微小穴３を有する焼結材料からなる
キヤピラリ４と金属カラー５とを組立・固着した
フエルール６、さらには第５図に示すように微小
穴７を有する金属製キヤピラリ８と金属カラー９
とを組立・固着したフエルール１０が使用されて
いた。 Conventional ferrules have a metal ferrule 1 with a minute hole 2 in the center, as shown in FIG. A ferrule 6 in which a capillary 4 made of a sintered material and a metal collar 5 are assembled and fixed, and further a metal capillary 8 having a minute hole 7 and a metal collar 9 as shown in FIG.
Ferrule 10 , which was assembled and fixed together, was used.
しかしながら光フアイバ素線の直径は約0.125
mmと非常に細いため、光フアイバコネクタで安定
した接続を行なうためには、フエルールの微小穴
径も約0.125mm程度にする必要があり、従来のフ
エルールにおいては微小穴の寸法精度、平行度を
精度良く保つためには、微小穴の長さはせいぜい
0.8mm程度までしか製造することができなかつた。 However, the diameter of optical fiber is approximately 0.125
As the ferrule is extremely thin (mm), in order to make a stable connection with an optical fiber connector, the diameter of the microhole in the ferrule must be approximately 0.125mm. In order to maintain high precision, the length of the microhole must be at most
It was only possible to manufacture up to about 0.8mm.
このため、フエルールに光フアイバを挿入・固
着するとき、挿入・固着が安定せず、さらにはス
リーブに嵌合・整列するときにも光フアイバの相
対位置が正確に出ず、嵌合・整列も安定しないと
いう欠点を有していた。 For this reason, when inserting and fixing the optical fiber into the ferrule, the insertion and fixation are not stable, and furthermore, when fitting and aligning the optical fiber to the sleeve, the relative position of the optical fiber is not accurate, and the fitting and alignment are difficult. It had the disadvantage of being unstable.
上記のような欠点を解決するため、本考案者等
は第６図及び第７図に示すような光フアイバコネ
クタのフエルールを発明した。（特願昭60−
001683（特開昭61−160708号公報）及び60−
001684（特開昭61−160709号公報）すなわち、第
６図において１１は耐食性、耐候性及び強度の優
れたステンレス等の金属材料からなる金属カラー
で、１２は中心に光フアイバ素線の線径約0.125
mmよりもわずかに0.001mm程度大きい微小穴１３
を有する複数の金属薄板１４が金属パイプ１５に
挿入・固着されたキヤピラリである。そして、こ
のキヤピラリ１２の微小穴１３の長さは約３mmで
あり、後面には光フアイバ素線の挿入を容易にす
るためにテーパー部１６が設けられている。 In order to solve the above-mentioned drawbacks, the present inventors invented a ferrule for an optical fiber connector as shown in FIGS. 6 and 7. (Special application 1986-
001683 (Japanese Unexamined Patent Publication No. 160708/1983) and 60-
001684 (Japanese Unexamined Patent Publication No. 61-160709) That is, in FIG. 6, 11 is a metal collar made of a metal material such as stainless steel with excellent corrosion resistance, weather resistance, and strength, and 12 is a wire diameter of the optical fiber in the center. Approximately 0.125
Microhole 13 slightly larger than mm by about 0.001mm
This is a capillary in which a plurality of metal thin plates 14 having a diameter are inserted and fixed to a metal pipe 15. The length of the microhole 13 of this capillary 12 is approximately 3 mm, and a tapered portion 16 is provided on the rear surface to facilitate insertion of the optical fiber.
又、キヤピラリ１２は金属カラー１１の先端部
１７に挿入・固着されており、先端部１７の外周
面は寸法精度が0.001mm以下であり、真円度、円
筒度、面アラサなどの形状も激しく管理されてい
る。又微小穴１３と金属カラー１１の外周面との
偏心は0.002mm以下に管理されている。 In addition, the capillary 12 is inserted and fixed to the tip 17 of the metal collar 11, and the outer peripheral surface of the tip 17 has a dimensional accuracy of 0.001 mm or less, and its shape is severely affected by roundness, cylindricity, and surface roughness. Managed. Furthermore, the eccentricity between the microhole 13 and the outer peripheral surface of the metal collar 11 is controlled to be 0.002 mm or less.
第７図における光フアイバコネクタのフエルー
ルは基本的には第６図に示したものと同様なもの
であり、１８は金属カラーであり、１９は中心に
光フアイバ素線の線径約0.125mmよりもわずかに
0.001mm程度大きい微小穴２０を有する複数の金
属薄板２１が金属カラー１８の先端部２２に挿
入・固着されているキヤピラリである。そしてこ
のキヤピラリ１９の微小穴２０の長さは約３mmで
あり、後面には光フアイバ素線の挿入を容易にす
るためにテーパー部２３が設けられている。 The ferrule of the optical fiber connector in FIG. 7 is basically the same as that shown in FIG. even slightly
This is a capillary in which a plurality of thin metal plates 21 having micro holes 20 approximately 0.001 mm in size are inserted and fixed to the tip 22 of a metal collar 18. The length of the microhole 20 of this capillary 19 is approximately 3 mm, and a tapered portion 23 is provided on the rear surface to facilitate insertion of the optical fiber wire.
又、寸法精度も第６図に示したものと同じよう
に十分管理されている。 Further, the dimensional accuracy is also sufficiently controlled as shown in FIG.
上記のように構成することにより、微小穴の長
さを３mmと長くすることができるとともに寸法精
度も十分管理することが可能となつたため、光フ
アイバの挿入・固着が安定化し、さらにはスリー
ブ嵌合・整列するときも光フアイバの相対位置が
正確かつ安定化したフエルールを提供することが
可能となつたものである。 By configuring as described above, the length of the microhole can be increased to 3 mm, and dimensional accuracy can be sufficiently controlled, making it possible to stabilize the insertion and fixation of the optical fiber, and further improve sleeve fitting. It is now possible to provide a ferrule in which the relative position of the optical fibers is accurate and stable even when mating and aligning.
〈考案が解決しようとする問題点〉
上記のように本考案者等によつて発明されたフ
エルールは相対位置の正確化、嵌合・整列の安定
化に関しては十分満足できるものであつたが、金
属薄板が耐食性のよいステンレス等の金属材料に
て構成されているため、被削性が非常に悪く、自
動盤あるいはプレス等の機械加工において、非常
に時間がかかるとともに歩留りも悪く、コスト高
の原因になつてしまうという欠点を有していた。<Problems to be solved by the invention> As mentioned above, the ferrule invented by the present inventors was sufficiently satisfactory in terms of accurate relative positioning and stabilization of fitting and alignment. Since the metal thin plate is made of metal materials such as stainless steel with good corrosion resistance, machinability is very poor, and machining using automatic lathes or presses is very time consuming, has low yields, and is expensive. It has the disadvantage that it can become a cause.
〈問題点を解決するための手段〉
本考案は、金属カラーと、微小穴を有する複数
の金属薄板を挿入・固着してなるキヤピラリとで
構成したフエルールにおいて、キヤピラリの先端
部の金属薄板を耐食性の良いステンレス等の金属
材料で構成し、内部は黄銅等の被削性の良好な金
属材料で構成することにより、加工時間を低減し
かつ歩留りを向上させ、安価な光フアイバコネク
タのフエルールを提供するものである。<Means for Solving the Problems> The present invention provides a ferrule consisting of a metal collar and a capillary made by inserting and fixing a plurality of thin metal plates having micro holes, and the thin metal plate at the tip of the capillary is made corrosion resistant. By using a metal material with good machinability such as stainless steel, and the interior with a metal material with good machinability such as brass, processing time is reduced and yield is improved, providing an inexpensive ferrule for optical fiber connectors. It is something to do.
〈実施例〉
以下面図に基づいて本考案の実施例を詳細に説
明する。<Example> An example of the present invention will be described in detail based on the following drawings.
尚、従来例と同一の部分については同一の符号
を付し説明は省略する。 Incidentally, the same parts as in the conventional example are given the same reference numerals, and the description thereof will be omitted.
第１図は本考案の一実施例を示す光フアイバコ
ネクタのフエルールの要部拡大断面図である。 FIG. 1 is an enlarged sectional view of a main part of a ferrule of an optical fiber connector showing an embodiment of the present invention.
図において３０は金属パイプ１５の先端部に微
小穴１３を有するステンレス材よりなる金属薄板
３１と、金属パイプ１５の内部に微小穴１３を有
する黄銅からなる金属薄板３２を挿入・固着した
キヤピラリである。 In the figure, 30 is a capillary in which a thin metal plate 31 made of stainless steel having a minute hole 13 at the tip of a metal pipe 15 and a thin metal plate 32 made of brass having a minute hole 13 inside the metal pipe 15 are inserted and fixed. .
上記のように、微小穴を有する金属薄板を多数
個使用して製造する光フアイバコネクタのフエル
ールにおいては、キヤピラリの先端部のみ耐食性
の良好なステンレス材にて構成し、内部は被削性
の優れた黄銅で構成したので、１個のフエルール
を製造するのに耐食性は良好だが被削性の非常に
悪いステンレスからなる金属薄板を１個のみしか
使用しないため、製造が容易になり歩留りも向上
し、安価な光フアイバコネクタのフエルールを提
供することができるものである。 As mentioned above, in the ferrule of an optical fiber connector manufactured using a large number of thin metal plates with microholes, only the tip of the capillary is made of stainless steel with good corrosion resistance, and the inside is made of a stainless steel material with excellent machinability. Since the ferrule is made of brass, only one thin metal plate made of stainless steel, which has good corrosion resistance but very poor machinability, is used to manufacture one ferrule, which simplifies manufacturing and improves yield. , it is possible to provide an inexpensive ferrule for an optical fiber connector.
又、本考案のフエルールに光フアイバを挿入・
固着し、端面研摩をして使用する場合でも、先端
部がステンレスで出来ているので耐食性の問題も
なく機能的に十分満足するものである。 In addition, an optical fiber can be inserted into the ferrule of this invention.
Even when used after fixing and polishing the end face, since the tip is made of stainless steel, there is no corrosion resistance problem and the product is fully functional.
第２図は、本考案の他の実施例を示す光フアイ
バコネクタのフエルールの要部拡大断面図であ
り、基本的には第１図のものと同じものである。 FIG. 2 is an enlarged sectional view of a main part of a ferrule of an optical fiber connector showing another embodiment of the present invention, which is basically the same as that in FIG. 1.
図において３３は金属カラー１８の先端部２２
に、先端部のみ微小穴２０を有する耐食性の良好
なステンレスからなる金属薄板３４と、内部に、
微小穴２０を有する黄銅からなる金属薄板３５と
を挿入・固着したキヤピラリである。 In the figure, 33 is the tip 22 of the metal collar 18.
A thin metal plate 34 made of stainless steel with good corrosion resistance and having a microhole 20 only at the tip, and inside thereof,
This is a capillary into which a thin metal plate 35 made of brass having a minute hole 20 is inserted and fixed.
上記のような構成においても、第１図に示した
フエルールと同様の効果を有するものである。 The above configuration also has the same effect as the ferrule shown in FIG. 1.
尚、本考案の実施例の説明においては、先端部
の微小穴を有する金属薄板に耐食性の良好な金属
材料としてステンレスを使用したが、Ni−Cr−
Fe系合金（インコネル）、Ni−Mo−Fe系合金
（ハステロイ）等の耐食性の良い金属材料でも良
く、又、内部の微小穴を有する金属薄板に被削性
の良い金属材料として黄銅を使用したが、アルミ
ニウム合金、流黄複合快削鋼（SUM），鉛入り快
削鋼（SK4F、SK5F）、快削りん青銅（C5441）
等の被削性の良好な金属材料を使用しても良いこ
とは云うまでもない。さらに耐食性を上げる為に
メツキを施しても良い。 In the description of the embodiment of the present invention, stainless steel was used as a metal material with good corrosion resistance for the thin metal plate having micro holes at the tip, but Ni-Cr-
Metal materials with good corrosion resistance such as Fe-based alloy (Inconel) and Ni-Mo-Fe-based alloy (Hastelloy) may be used. Brass may also be used as a metal material with good machinability for the metal thin plate with internal micro holes. However, aluminum alloy, yellow composite free-cutting steel (SUM), leaded free-cutting steel (SK4F, SK5F), free-cutting phosphor bronze (C5441)
It goes without saying that metal materials with good machinability such as the like may also be used. Furthermore, plating may be applied to improve corrosion resistance.
〈考案の効果〉
以上詳細に説明したように、本考案によればフ
エルールを構成するキヤピラリの先端部のみ耐食
性の良いステンレス等の金属材料からなる金属薄
板で構成し、内部は被削性の良い黄銅等の金属材
料からなる金属薄板で構成したので、加工時間の
低減及び歩留りの向上が可能となり、安価な光フ
アイバコネクタのフエルールが提供でき、その工
業的効果は非常に大きいものである。<Effects of the invention> As explained in detail above, according to the invention, only the tip of the capillary constituting the ferrule is made of a thin metal plate made of a metal material such as stainless steel with good corrosion resistance, and the inside is made of a metal material with good machinability. Since it is constructed from a thin metal plate made of a metal material such as brass, it is possible to reduce processing time and improve yield, and it is possible to provide an inexpensive ferrule for an optical fiber connector, which has a very large industrial effect.
第１図は本考案の実施例である光フアイバコネ
クのフエルールの要部拡大断面図、第２図は、本
考案の他の実施例である光フアイバコネクタのフ
エルールの要部拡大断面図、第３図乃至第７図は
従来の光フアイバコネクタのフエルールを示す断
面図である。
１１，１８……金属カラー、１３，２０……微
小穴、１５……金属パイプ、１７，２２……金属
カラー先端部、３０，３３……キヤピラリ、３
１，３２，３４，３５……金属薄板。
FIG. 1 is an enlarged cross-sectional view of a main part of a ferrule of an optical fiber connector according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of a main part of a ferrule of an optical fiber connector according to another embodiment of the present invention, and FIG. 7 to 7 are cross-sectional views showing a ferrule of a conventional optical fiber connector. 11, 18... Metal collar, 13, 20... Micro hole, 15... Metal pipe, 17, 22... Metal collar tip, 30, 33... Capillary, 3
1, 32, 34, 35... thin metal plate.
Claims (1)
に大きな微小穴を有する複数の金属薄板で構成し
たキヤピラリとからなる光フアイバコネクタのフ
エルールにおいて、前記キヤピラリの先端部の前
記金属薄板は、ステンレス材等の耐食性の優れた
金属材料で構成し、前記キヤピラリの内部の前記
金属薄板は黄銅等の被削性の良好な金属材料にて
構成したことを特徴とする光フアイバコネクタの
フエルール。 In the ferrule of an optical fiber connector, which is composed of a metal collar and a capillary composed of a plurality of thin metal plates having microholes slightly larger than the diameter of the optical fiber, the thin metal plate at the tip of the capillary is made of stainless steel or the like. A ferrule for an optical fiber connector, characterized in that it is made of a metal material with excellent corrosion resistance, and the thin metal plate inside the capillary is made of a metal material with good machinability, such as brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985050369U JPH0435846Y2 (en) | 1985-04-04 | 1985-04-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985050369U JPH0435846Y2 (en) | 1985-04-04 | 1985-04-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61167606U JPS61167606U (en) | 1986-10-17 |
| JPH0435846Y2 true JPH0435846Y2 (en) | 1992-08-25 |
Family
ID=30568435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985050369U Expired JPH0435846Y2 (en) | 1985-04-04 | 1985-04-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0435846Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003185881A (en) * | 2001-10-12 | 2003-07-03 | Seiko Instruments Inc | Ferrule |
| TWI684038B (en) * | 2017-10-20 | 2020-02-01 | 凌國基 | Optical fiber connector and assembling structure thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5169640A (en) * | 1974-12-13 | 1976-06-16 | Fujitsu Ltd | HIKARIDENSOROKETSUGOKYOFUAIBASHIJIGUNO SEIZOHOHO |
| JPS6012519A (en) * | 1983-06-15 | 1985-01-22 | シ−メンス、アクチエンゲゼルシヤフト | Precision part for optical guide plug |
-
1985
- 1985-04-04 JP JP1985050369U patent/JPH0435846Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5169640A (en) * | 1974-12-13 | 1976-06-16 | Fujitsu Ltd | HIKARIDENSOROKETSUGOKYOFUAIBASHIJIGUNO SEIZOHOHO |
| JPS6012519A (en) * | 1983-06-15 | 1985-01-22 | シ−メンス、アクチエンゲゼルシヤフト | Precision part for optical guide plug |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61167606U (en) | 1986-10-17 |
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