JPH0339765Y2 - - Google Patents
Info
- Publication number
- JPH0339765Y2 JPH0339765Y2 JP1983044790U JP4479083U JPH0339765Y2 JP H0339765 Y2 JPH0339765 Y2 JP H0339765Y2 JP 1983044790 U JP1983044790 U JP 1983044790U JP 4479083 U JP4479083 U JP 4479083U JP H0339765 Y2 JPH0339765 Y2 JP H0339765Y2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- plug
- adapter
- split
- optical 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
- 239000013307 optical fiber Substances 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 10
- 239000007769 metal material Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000010437 gem Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000010979 ruby Substances 0.000 description 2
- 229910001750 ruby Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000004727 Noryl Substances 0.000 description 1
- 229920001207 Noryl Polymers 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Description
【考案の詳細な説明】
(1) 考案の技術分野
本考案は光フアイバ伝送技術に関し、特に光フ
アイバを着脱自在に接続するための光コネクタ用
アダプタに関するものである。[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to optical fiber transmission technology, and in particular to an optical connector adapter for detachably connecting optical fibers.
(2) 技術の背景
通信分野における光フアイバ伝送技術の進歩は
目ざましく、特に近年では単一（シングル）モー
ドフアイバの１種である偏波面保存フアイバが注
目され、活発な開発がすすめられている。(2) Background of the technology Optical fiber transmission technology in the communications field has made remarkable progress, and in recent years, polarization-maintaining fiber, a type of single-mode fiber, has attracted attention and is being actively developed. .
偏波面保存フアイバの実用化のための課題の１
つに、光コネクタによるフアイバの接続がある。
すなわち、単一モードフアイバは例えばクラツド
外径が125μm、コア径が４〜10μmというような
非常に微細なものであり、光コネクタには高精度
の位置合わせ（心合わせ）精度が要求されるが、
なかんずく偏波面保存フアイバの場合は偏波面の
方向に位置ずれが生ずると致命的な接続損失が生
ずるので普通の単一モードフアイバよりも更に高
い位置合わせ精度が要求される。 Issue 1 for practical application of polarization preserving fiber
One example is fiber connection using optical connectors.
In other words, a single mode fiber is extremely fine, with a clad outer diameter of 125 μm and a core diameter of 4 to 10 μm, and optical connectors require high alignment accuracy. ,
In particular, in the case of a polarization-maintaining fiber, a positional shift in the direction of the polarization plane will cause a fatal splice loss, so higher alignment accuracy is required than that of an ordinary single mode fiber.
(3) 従来技術の問題点
従来の光コネクタは一般に接続すべき光フアイ
バの先端部をプラグに同心的に挿入固定し、この
プラグをアダプタに挿入することにより光フアイ
バの端面どうしを同心的に対面接続させるように
構成されている。アダプタは一般にアダプタ本体
内に割付きスリーブを装着してあつてこのスリー
ブ内にプラグが挿入されるように構成されてい
る。(3) Problems with conventional technology In conventional optical connectors, the tips of the optical fibers to be connected are generally inserted and fixed concentrically into a plug, and by inserting this plug into an adapter, the end faces of the optical fibers are concentrically connected to each other. It is configured for face-to-face connection. Adapters are generally constructed with a slotted sleeve mounted within the adapter body, into which the plug is inserted.
しかるに従来のアダプタの割付きスリーブはリ
ン青銅などの金属で作られているため、プラグの
金属との摺り合わせにより金属の削りカスが生
じ、これが光フアイバ端面に付着して接続損失が
大きくなるという問題がある。またプラグ挿抜を
繰り返すたびにスリーブ内面が摩耗することによ
りプラグとの間にガタが生じ、所期の接続精度が
得られなくなつて接続損失が増大すると言う欠点
がある。 However, since the slotted sleeves of conventional adapters are made of metal such as phosphor bronze, when they rub against the metal of the plug, metal shavings are generated, which adhere to the end face of the optical fiber and increase connection loss. There's a problem. Furthermore, each time the plug is inserted and removed, the inner surface of the sleeve wears out, causing looseness between the sleeve and the plug, making it impossible to obtain the desired connection precision and increasing connection loss.
(4) 考案の目的
本考案の目的は、上記のような従来技術に鑑
み、プラグ挿抜による金属の削りカスの発生を低
減でき、またプラグ挿抜を繰り返えしても所期の
光フアイバ接続精度を維持可能な信頼性の高い光
コネクタ用アダプタを提供することにある。(4) Purpose of the invention In view of the above-mentioned conventional technology, the purpose of the invention is to reduce the generation of metal shavings due to plug insertion and removal, and to maintain the desired optical fiber connection even after repeated plug insertion and removal. An object of the present invention is to provide a highly reliable optical connector adapter that can maintain accuracy.
(5) 考案の構成
本考案により光コネクタ用アダプタは、概略的
には、該アダプタの本体内に、弾性を有する金属
で形成され、その長手方向に割りを有するセツト
スリーブを装着し、該セツトスリーブの内側に、
前記プラグよりも高硬度で耐摩耗性の大きな非金
属材料で形成され、該プラグの外径より小さな内
径の割付きスリーブを装着し、該割付きスリーブ
内にプラグを挿入するように構成されたものであ
る。(5) Structure of the invention In general, the optical connector adapter according to the invention includes a set sleeve formed of an elastic metal and having a split in the longitudinal direction installed in the main body of the adapter, and a set sleeve that is split in the longitudinal direction. inside the sleeve,
A slotted sleeve made of a non-metallic material with higher hardness and greater wear resistance than the plug and having an inner diameter smaller than the outer diameter of the plug is attached, and the plug is configured to be inserted into the slotted sleeve. It is something.
(6) 考案の実施例
以下、本考案の実施例につき添付図面を参照し
て詳細に説明する。(6) Embodiments of the invention Hereinafter, embodiments of the invention will be described in detail with reference to the attached drawings.
第１図は本考案による光コネクタ用アダプタの
一実施例の端面図であり、第２図は第１図の矢印
Ａ−Ａ断面図である。このアダプタは基本的にア
ダプタ本体１０、セツトスリーブ２０、割付きス
リーブ３０及び固定リング４０から構成されてい
る。 FIG. 1 is an end view of an embodiment of the optical connector adapter according to the present invention, and FIG. 2 is a sectional view taken along the arrow AA in FIG. This adapter basically consists of an adapter body 10, a setting sleeve 20, a split sleeve 30, and a fixing ring 40.
アダプタ本体１０は、第３図及びそれの矢印Ｂ
−Ｂ断面図である第４図に明示するように、略円
筒状の主部１１に取付用フランジ１２を一体形成
したものである。フランジ１２には取付ねじ用の
穴１３を形成してあり、取付ねじ（図示せず）に
よつて任意の取付部に固定できる。アダプタ主部
の両端の外周面にはオネジ１４が形成してあり、
第２図に仮想線で示す如く光コネクタのカツプリ
ングナツト３を螺着できるようになつている。ア
ダプタ本体は例えば「ノリル」という商品名の耐
熱性を有し、軽量で型くずれのしにくいプラスチ
ツク材料などから一体成形される。 The adapter body 10 is shown in FIG.
As clearly shown in FIG. 4, which is a sectional view taken along line B, a mounting flange 12 is integrally formed with a substantially cylindrical main portion 11. A hole 13 for a mounting screw is formed in the flange 12, so that it can be fixed to an arbitrary mounting portion with a mounting screw (not shown). Male threads 14 are formed on the outer peripheral surface of both ends of the main part of the adapter.
As shown by the imaginary line in FIG. 2, a coupling nut 3 of an optical connector can be screwed on. The adapter body is integrally molded from a heat-resistant, lightweight plastic material that does not easily lose its shape, for example, under the trade name "Noryl."
セツトスリーブ２０は例えばBsBMなどの弾力
性を有する金属材料から形成され、第５図及びそ
れの矢印Ｃ−Ｃ断面図である第６図に示すように
軸線方向に割り２１が入つている。また外周面に
は環状肩部２２を軸線方向において２カ所に形成
してあり、そして割り２１に対して90°の角度位
置にはスリーブ端面から肩部２２より内側の位置
まで延在するスリツト２３を形成してある。後述
するようにスリツト２３は割付きスリーブをセツ
トスリーブ２０に固定するための接着剤の充填孔
となるものである。 The set sleeve 20 is made of a resilient metal material such as BsBM, and has a split 21 in the axial direction, as shown in FIG. 5 and FIG. 6, which is a sectional view taken along the line C--C. Further, annular shoulders 22 are formed on the outer circumferential surface at two locations in the axial direction, and a slit 23 extending from the sleeve end face to a position inside the shoulder 22 is formed at a 90° angle position with respect to the split 21. has been formed. As will be described later, the slit 23 serves as a hole filled with an adhesive for fixing the indexed sleeve to the set sleeve 20.
割付きスリーブ３０は第７図及びそれの矢印Ｄ
−Ｄ断面図である第８図に示すように軸線方向に
割り３１を入れたスリーブである。割付きスリー
ブ３０は硬度が高く耐摩耗性の大きな非金属材
料、例えばAl2O3などのセラミツクス、あるいは
ルビーやサフアイヤ等の宝石から形成される。 The indexed sleeve 30 is shown in FIG. 7 and its arrow D.
As shown in FIG. 8, which is a sectional view taken along line D, this sleeve has a split 31 in the axial direction. The split sleeve 30 is made of a nonmetallic material with high hardness and high wear resistance, such as ceramics such as Al 2 O 3 or gems such as ruby and sapphire.
固定リング４０は第７図に示すような形状であ
り、例えばステンレス鋼などの金属から形成され
る。 The fixing ring 40 has a shape as shown in FIG. 7, and is made of metal such as stainless steel.
アダプタの組立は、まずアダプタ本体１０への
組付け前に、第５図及び第６図に示すようにセツ
トスリーブ２０に割付きスリーブ３０を挿入す
る。そしてセツトスリーブ２０のスリツト２３に
例えばエポキシ系接着剤５０を充填して両スリー
ブを一体化する。次に、このスリーブ組立体をア
ダプタ本体１０に第２図に示す如く挿入する。そ
してアダプタ本体１０の両端部に固定リング４０
を第２図に示す如く挿入すると、固定リング４０
の内側端面がセツトスリーブ２０の肩部２２に当
接し、スリーブ組立体（すなわちセツトスリーブ
２０及び割付きスリーブ３０）は固定保持され
る。 To assemble the adapter, first, before assembling it to the adapter body 10, the indexed sleeve 30 is inserted into the set sleeve 20 as shown in FIGS. 5 and 6. Then, the slit 23 of the set sleeve 20 is filled with, for example, an epoxy adhesive 50 to integrate both sleeves. Next, this sleeve assembly is inserted into the adapter body 10 as shown in FIG. A fixing ring 40 is attached to both ends of the adapter body 10.
When inserted as shown in FIG. 2, the fixing ring 40
The inner end surface of the set sleeve 20 contacts the shoulder 22 of the set sleeve 20, and the sleeve assembly (ie, the set sleeve 20 and the slotted sleeve 30) is held fixed.
次に光フアイバの接続について説明する。第２
図には光フアイバ１及びプラグ２を仮想線で示し
てある。光フアイバ１はプラグ２に同心的に挿入
固定されている。プラグ２をアダプタの割付きス
リーブ３０内に図示の如く挿入し、コネクタのカ
ツプリングナツト３をアダプタ本体１０に螺着す
ると、光フアイバ１は両端面が対面した状態で保
持され、相互に接続されることになる。 Next, the connection of optical fibers will be explained. Second
In the figure, the optical fiber 1 and the plug 2 are shown with phantom lines. The optical fiber 1 is inserted and fixed concentrically into the plug 2. When the plug 2 is inserted into the slotted sleeve 30 of the adapter as shown and the coupling nut 3 of the connector is screwed onto the adapter body 10, the optical fibers 1 are held with both end faces facing each other and are connected to each other. That will happen.
以上のような本考案のアダプタの構造によれ
ば、割付きスリーブ３０が前述の如くセラミツク
スあるいはルビー等の宝石のような高硬度で耐摩
耗性の高い非金属材料から形成されているため、
プラグ挿抜による金属の削りカスの発生が従来に
比べて著しく低減され、従つて光フアイバ端面へ
の削りカスの付着による接続損失は小さい。ま
た、同様の理由からプラグ挿抜を繰返えしても割
付きスリーブはほとんど摩耗しないか、摩耗して
も極めて微小であり、従つて当初の高い位置合せ
精度が維持され、接続損失の小さい光フアイバ接
続を長期間に亘つて実現可能である。ちなみに、
光コネクタのプラグの外径寸法は2.499〜2.501mm
程度に形成され、割付きスリーブの内径寸法は
2.497〜2.499mm程度に形成される。 According to the structure of the adapter of the present invention as described above, the split sleeve 30 is made of a non-metallic material with high hardness and high wear resistance, such as ceramics or gemstones such as ruby, as described above.
The generation of metal shavings due to insertion and removal of the plug is significantly reduced compared to the conventional method, and therefore, connection loss due to adhesion of shavings to the end face of the optical fiber is small. In addition, for the same reason, even after repeated plug insertion and removal, the indexed sleeve hardly wears out, or even if it wears out, it wears out very little. Therefore, the initial high alignment accuracy is maintained, and optical fibers with low connection loss can be used. Fiber connections can be realized for long periods of time. By the way,
The outer diameter of the optical connector plug is 2.499 to 2.501 mm.
The internal diameter of the split sleeve is
It is formed around 2.497 to 2.499mm.
一方、上記のような割付きスリーブの材料は弾
性に乏しく、曲げや、引張、圧縮に対する機械的
強度が小さいという問題がある。その対策として
本考案では割付きスリーブ３０を金属製セツトス
リーブ２０内に挿入し、セツトスリーブによつて
割付きスリーブの機械的強度を補償するようにし
てある。この場合、セツトスリーブ２０の寸法
は、組立状態において割付きスリーブ３０に比較
的小さな初期圧縮応力が作用するように設定する
のが望ましい。 On the other hand, the material of the above-mentioned split sleeve has a problem of poor elasticity and low mechanical strength against bending, tension, and compression. As a countermeasure against this problem, in the present invention, the indexed sleeve 30 is inserted into the metal set sleeve 20, and the set sleeve compensates for the mechanical strength of the indexed sleeve. In this case, the dimensions of the set sleeve 20 are desirably set so that a relatively small initial compressive stress is applied to the indexed sleeve 30 in the assembled state.
(7) 考案の効果
以上のように本考案による光コネクタ用アダプ
タは、プラグ挿抜に伴う金属カスの発生ならびに
位置合せ精度の低下を実質上防止し、接続損失の
小さい高精度の光フアイバ接続を長期間に亘つて
実現可能であり、非常に信頼性の高いものであ
る。(7) Effects of the invention As described above, the optical connector adapter according to the invention substantially prevents the generation of metal scraps and deterioration of alignment accuracy due to plug insertion and removal, and enables high-precision optical fiber connections with low connection loss. It can be realized over a long period of time and is extremely reliable.
図面は本考案による光コネクタ用アダプタの一
実施例を示し、第１図は組立状態の端面図、第２
図は第１図の矢印Ａ−Ａ断面図、第３図はアダプ
タ本体の断面図、第４図は第３図の矢印Ｂ−Ｂに
沿つた半断面側面図、第５図はセツトスリーブの
端面図、第６図は第５図の矢印Ｃ−Ｃに沿つた半
断面側面図、第７図は割付きスリーブの端面図、
第８図は第７図の矢印Ｄ−Ｄに沿つた半断面側面
面、第９図は固定リングの半断面側面図である。
１……光フアイバ、２……プラグ、３……カツ
プリングナツト、１０……アダプタ本体、１１…
…アダプタ本体主部、１２……取付フランジ、２
０……セツトスリーブ、２１……割り、３０……
割付きスリーブ、３１……割り、４０……固定リ
ング、５０……接着剤。
The drawings show an embodiment of the optical connector adapter according to the present invention, and FIG. 1 is an end view of the assembled state, and FIG.
The figures are a sectional view taken along the arrow A-A in Fig. 1, Fig. 3 is a sectional view of the adapter body, Fig. 4 is a half-sectional side view taken along the arrow B-B in Fig. 3, and Fig. 5 is a sectional view of the set sleeve. 6 is a half-sectional side view taken along the arrow C-C in FIG. 5; FIG. 7 is an end view of the indexed sleeve;
FIG. 8 is a side view in half cross section taken along the arrow DD in FIG. 7, and FIG. 9 is a side view in half cross section of the fixing ring. 1... Optical fiber, 2... Plug, 3... Coupling nut, 10... Adapter body, 11...
...Main part of the adapter body, 12...Mounting flange, 2
0...set sleeve, 21...split, 30...
Split sleeve, 31...split, 40...fixing ring, 50...adhesive.
Claims (1)
定した構造の光コネクタを接続するための光コネ
クタ用アダプタにおいて、 該アダプタの本体内に、弾性を有する金属で形
成され、その長手方向に割りを有するセツトスリ
ーブを装着し、 該セツトスリーブの内側に、前記プラグよりも
高硬度で耐摩耗性の大きな非金属材料で形成さ
れ、該プラグの外径より小さな内径の割付きスリ
ーブを装着し、該割付きスリーブ内にプラグを挿
入するように構成されたことを特徴とする光コネ
クタ用アダプタ。[Claim for Utility Model Registration] In an optical connector adapter for connecting an optical connector having a structure in which the tip of an optical fiber is inserted and fixed concentrically into a plug, the body of the adapter is made of an elastic metal. and a set sleeve having a split in the longitudinal direction, and a set sleeve made of a non-metallic material with higher hardness and greater wear resistance than the plug, and having an inner diameter smaller than the outer diameter of the plug, is installed inside the set sleeve. An adapter for an optical connector, characterized in that it is configured such that a slotted sleeve is attached and a plug is inserted into the slotted sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4479083U JPS59151212U (en) | 1983-03-30 | 1983-03-30 | Optical connector adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4479083U JPS59151212U (en) | 1983-03-30 | 1983-03-30 | Optical connector adapter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59151212U JPS59151212U (en) | 1984-10-09 |
| JPH0339765Y2 true JPH0339765Y2 (en) | 1991-08-21 |
Family
ID=30175317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4479083U Granted JPS59151212U (en) | 1983-03-30 | 1983-03-30 | Optical connector adapter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59151212U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020149052A (en) * | 2019-03-11 | 2020-09-17 | 京セラ株式会社 | Optical connector sleeve and optical connector |
| JP2020149051A (en) * | 2019-03-11 | 2020-09-17 | 京セラ株式会社 | Optical connector sleeve and optical connector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717911A (en) * | 1980-07-08 | 1982-01-29 | Sumitomo Electric Ind Ltd | Optical connector |
-
1983
- 1983-03-30 JP JP4479083U patent/JPS59151212U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717911A (en) * | 1980-07-08 | 1982-01-29 | Sumitomo Electric Ind Ltd | Optical connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59151212U (en) | 1984-10-09 |
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