JPH0634845A - Optical connector - Google Patents
Optical connectorInfo
- Publication number
- JPH0634845A JPH0634845A JP4190313A JP19031392A JPH0634845A JP H0634845 A JPH0634845 A JP H0634845A JP 4190313 A JP4190313 A JP 4190313A JP 19031392 A JP19031392 A JP 19031392A JP H0634845 A JPH0634845 A JP H0634845A
- Authority
- JP
- Japan
- Prior art keywords
- guide pin
- ferrule
- optical connector
- optical
- clamper
- 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.)
- Granted
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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3882—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using rods, pins or balls to align a pair of ferrule 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
- G02B6/389—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、ガイドピンを介して光
結合される光コネクタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical connector which is optically coupled via a guide pin.
【0002】[0002]
【従来の技術】従来より多心光コネクタとして知られて
いるMF光コネクタ,MT光コネクタ,SV光コネクタ
などは位置決め用に形成されているガイドピン穴にガイ
ドピンを挿入することにより位置決めをしながら前端面
同士を突き合せて光結合される。そして、この光結合を
安定に保持するものとして、光コネクタの後端面側から
その光ファイバ軸方向に押圧するクランプが光コネクタ
ホルダとして用いられている。2. Description of the Related Art MF optical connectors, MT optical connectors, SV optical connectors, etc., which have hitherto been known as multi-fiber optical connectors, are positioned by inserting guide pins into guide pin holes formed for positioning. Meanwhile, the front end faces are butted against each other and optically coupled. A clamp that presses in the optical fiber axial direction from the rear end face side of the optical connector is used as an optical connector holder for stably holding this optical coupling.
【0003】図6(A),(B)にはMT光コネクタの
光結合状態を示す。同図に示すように、光コネクタ1
は、光ファイバ軸方向に貫通するガイドピン穴2をフェ
ルール本体3に2つずつ有しており、これらガイドピン
穴2にガイドピン4を挿入して光ファイバ端面が位置決
め配置されているフェルールの前端面5同士を突き合せ
ることにより、光結合されるようになっている。そし
て、この光結合状態を安定に保持するクリップ6は、板
状部材7の両端に設けられた板ばね部8により光コネク
タ1の後端面9を挟み込む構造を有している。FIGS. 6A and 6B show the optical coupling state of the MT optical connector. As shown in the figure, the optical connector 1
Has two guide pin holes 2 penetrating in the axial direction of the optical fiber in the ferrule body 3, and the guide pins 4 are inserted into the guide pin holes 2 to insert the guide pins 4 into the ferrule body. The front end faces 5 are butted against each other so that they are optically coupled. The clip 6 that stably holds the optical coupling state has a structure in which the rear end surface 9 of the optical connector 1 is sandwiched by the plate spring portions 8 provided at both ends of the plate member 7.
【0004】[0004]
【発明が解決しようとする課題】前述の光コネクタ1同
士の結合に用いるガイドピン4は、ガイドピン穴2に固
定していないので、図7(A)に示す光コネクタ1,1
同士の結合状態から当該光コネクタ1,1同士を切り離
す際、当該ガイドピン4が抜けてしまったり(図7
(B)参照)、最悪の場合には脱落してしまうという問
題がある。これは特に光コネクタの着脱を高所あるいは
暗所で作業する場合に問題であった。Since the guide pins 4 used for connecting the optical connectors 1 described above are not fixed in the guide pin holes 2, the optical connectors 1, 1 shown in FIG.
When the optical connectors 1 and 1 are separated from each other in the coupled state, the guide pins 4 may come off (see FIG. 7).
(Refer to (B)), but in the worst case, there is a problem of falling off. This is a problem particularly when the attachment / detachment of the optical connector is performed in a high place or a dark place.
【0005】一方、当該ガイドピン4を接着剤を用いて
固定してしまうと、図7(C)に示すように光コネクタ
端面5の清拭がしにくく、また、ガイドピン3とコネク
タ端面との部分に例えばマッチンググリス,ゴミ等が付
着し、光コネクタの特性劣化の原因となるという問題が
ある。On the other hand, if the guide pins 4 are fixed with an adhesive, it is difficult to clean the optical connector end face 5 as shown in FIG. 7C, and the guide pin 3 and the connector end face are not wiped. For example, there is a problem in that matching grease, dust, etc., adhere to the portion, which causes deterioration of the characteristics of the optical connector.
【0006】本発明は上記事情に鑑み、光コネクタの脱
着時にガイドピンの紛失が無く、しかも光コネクタ端面
の清拭が容易で且つガイドピンの位置を常に一定方向に
保つようにした光コネクタを提供することを目的とす
る。In view of the above circumstances, the present invention provides an optical connector in which the guide pin is not lost when the optical connector is attached and detached, the end face of the optical connector is easily wiped, and the position of the guide pin is always kept in a fixed direction. The purpose is to provide.
【0007】[0007]
【課題を解決するための手段】前記目的を達成する本発
明に係る光コネクタの構成は、前端面に光ファイバ端面
が位置決め配置されており、且つ光ファイバ軸方向に貫
通するガイドピン穴を形成したフェルールを有する光コ
ネクタであって、一端部がフェルール前端面より突出す
る一方、他端部が当該フェルール後端面より突出し且つ
当該他端部の先端近傍に係止部を形成したガイドピン
と、上記フェルールの後端面側に配され、ガイドピン穴
から突出する上記ガイドピンの係止部と係止する係止手
段を有するクランパとを具備することを特徴とする。According to the structure of an optical connector of the present invention for achieving the above object, an optical fiber end face is positioned and arranged on a front end face, and a guide pin hole penetrating in the optical fiber axial direction is formed. An optical connector having a ferrule, one end of which protrudes from the front end face of the ferrule, the other end of which protrudes from the rear end face of the ferrule and which forms a locking portion near the tip of the other end, and A clamper is provided on the rear end surface side of the ferrule, the clamper having locking means for locking the locking portion of the guide pin protruding from the guide pin hole.
【0008】[0008]
【作用】前記構成の光コネクタにおいて、フェルールに
形成したガイドピン穴に、係止部が形成された方からガ
イドピンを挿入し、フェルールの後端面側に配されたク
ランパの係止手段と当該ガイドピンの係止部とを係止す
ると共に、フェルールの前端面より他の光コネクタのガ
イドピン穴に挿入するガイドピンの一端部を突出させ
る。これによってクランパで把持されたガイドピンは光
コネクタの脱着に際し、脱落することがない。In the optical connector of the above construction, the guide pin is inserted into the guide pin hole formed in the ferrule from the side where the locking portion is formed, and the locking means of the clamper arranged on the rear end face side of the ferrule and The guide pin is locked to the locking portion, and one end of the guide pin to be inserted into the guide pin hole of another optical connector is projected from the front end face of the ferrule. As a result, the guide pin held by the clamper does not fall off when the optical connector is attached or detached.
【0009】[0009]
【実施例】以下、本発明の好適な一実施例について詳細
に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described in detail below.
【0010】図1は本実施例に係る光コネクタの斜視
図,図2はクランパの斜視図,図3はその平面図及び正
面図を示す。FIG. 1 is a perspective view of an optical connector according to this embodiment, FIG. 2 is a perspective view of a clamper, and FIG. 3 is a plan view and a front view thereof.
【0011】これらの図面に示すように光コネクタ10
はフェルール本体11に光ファイバ12の端面がフェル
ール本体11の前端面11aより外方に臨むよう位置決
め配置されると共に、該光ファイバ12の軸方向と同方
向に貫通するガイドピン13の挿入用のガイドピン穴1
4を二箇所形成している。As shown in these drawings, the optical connector 10
Is positioned in the ferrule body 11 so that the end surface of the optical fiber 12 faces the outside of the front end surface 11a of the ferrule body 11, and is used for inserting the guide pin 13 penetrating in the same direction as the axial direction of the optical fiber 12. Guide pin hole 1
4 is formed in two places.
【0012】上記ガイドピン13はその一端部の先端近
傍に係止部としての一端部から離れた箇所にくびれ部1
3aが形成された段付きガイドピンとしている。The guide pin 13 has a constricted portion 1 in the vicinity of the tip of one end of the guide pin 13 at a position apart from the one end as a locking portion.
3a is formed as a stepped guide pin.
【0013】上記フェルール本体11の後端面11bに
は上記ガイドピン13に形成されたくびれ部13aと係
合する係止手段を有するクランパ15が配設されてお
り、ガイドピン13の一端部を係止している。On the rear end surface 11b of the ferrule body 11, there is disposed a clamper 15 having locking means for engaging with the constricted portion 13a formed on the guide pin 13, and one end of the guide pin 13 is engaged. It has stopped.
【0014】本実施例に係るクランパ15は図2及び図
3に示すように、クランパ本体16にガイドピン13の
挿入穴16a及び該挿入穴16aと連通するスリット部
16bを形成すると共に、ガイドピン13が該挿入穴1
6aに挿入する際、図2,図3中R方向に弾性変形して
ガイドピン13のくびれ部13aと係止する係止片16
cが設けられている。As shown in FIGS. 2 and 3, the clamper 15 according to the present embodiment has an insertion hole 16a for the guide pin 13 and a slit portion 16b communicating with the insertion hole 16a formed in the clamper body 16 and the guide pin. 13 is the insertion hole 1
A locking piece 16 that elastically deforms in the R direction in FIGS. 2 and 3 and locks with the constricted portion 13a of the guide pin 13 when inserted into the 6a.
c is provided.
【0015】またクランパ本体16には、挿入されるガ
イドピン13の挿入方向にストッパ16dが立設されて
おり、当該ガイドピン13の先端部を停止すると共にそ
の位置決めをしている。A stopper 16d is erected on the clamper body 16 in the insertion direction of the guide pin 13 to be inserted, and stops the tip of the guide pin 13 and positions it.
【0016】よって、くびれ部13aを形成したガイド
ピン13をガイドピン穴14に差込んで当該くびれ部1
3aをクランパ15の係止手段によって係止すること
で、フェルールの前端面11aより所定長さのガイドピ
ン13の一端部を突出すると共に、当該ガイドピン13
の他端がクランパ15により必ず係止されているように
している。Therefore, the guide pin 13 having the constricted portion 13a is inserted into the guide pin hole 14 and the constricted portion 1 is formed.
By locking 3a by the locking means of the clamper 15, one end portion of the guide pin 13 of a predetermined length is projected from the front end surface 11a of the ferrule, and the guide pin 13 is locked.
The other end is always locked by the clamper 15.
【0017】光コネクタの結合に際しては図4(A)に
示すように、突出したガイドピン13の先端部を従来と
同様の光ファイバ軸方向に貫通するガイドピン穴18を
有する光コネクタ17の当該ガイドピン穴18に挿入す
ることで結合し、多芯光ファイバの光結合を行うように
している。When coupling the optical connectors, as shown in FIG. 4 (A), the optical connector 17 has a guide pin hole 18 that penetrates the tip end of the protruding guide pin 13 in the axial direction of the optical fiber as in the prior art. The multi-core optical fiber is optically coupled by inserting it into the guide pin hole 18 for coupling.
【0018】また、光コネクタの着脱に際してはガイド
ピン13のくびれ部13aはクランパ15によって把持
されているので、光コネクタのみが外れ、ガイドピン1
3の脱落がない。When the optical connector is attached or detached, the constricted portion 13a of the guide pin 13 is gripped by the clamper 15, so that only the optical connector comes off and the guide pin 1
There is no dropout of 3.
【0019】一方、フェルール前端面11aの清拭を行
う際には、ピン引抜治具19を用いてガイドピン13を
着脱してから行うようにすればよい。尚、ピン把持力は
100gf〜1000gfとするのが好ましい。On the other hand, when wiping the front end surface 11a of the ferrule, the guide pin 13 may be attached and detached by using the pin drawing jig 19. The pin gripping force is preferably 100 gf to 1000 gf.
【0020】本実施例に用いたクランパ15は、係止片
16cが弾性変形自在とするうよう合成樹脂等としてい
ると共に、ガイドピン13のくびれ部13aの径を小と
していることにより、クランパ15の挿入穴16aの穴
径と穴ピッチを高精度にしなくてもガイドピン13に応
力を受けずに済んでいる。The clamper 15 used in this embodiment is made of synthetic resin or the like so that the locking piece 16c is elastically deformable and the diameter of the constricted portion 13a of the guide pin 13 is small. Even if the hole diameter and the hole pitch of the insertion hole 16a are not made highly accurate, the guide pin 13 does not receive stress.
【0021】次に他のクランパの一例を図5を用いて説
明する。同図に示すようにクランパ25は一対の相対向
するクリップ部25a,25bを2ケ所設けており、そ
の材質を金属性としている。そしてクリップ部25a,
25bの間に形成されるスリット部26にガイドピン1
3の係止部であるくびれ部13aを挿入し、把持固定す
るようにしている。ピンの着脱は前述と同様にピン引抜
治具を用いればよい。Next, an example of another clamper will be described with reference to FIG. As shown in the figure, the clamper 25 is provided with a pair of opposed clip portions 25a and 25b at two places, and the material thereof is metallic. And the clip portion 25a,
The guide pin 1 is provided in the slit portion 26 formed between the portions 25b.
The constricted portion 13a, which is the locking portion of No. 3, is inserted and gripped and fixed. The pin can be attached and detached by using a pin extracting jig as described above.
【0022】このクランパはスリット部26によりガイ
ドピン13の先端部を挿入するためのガイドピン穴の形
成を略すると共にその穴ピッチの精度を不用にしてい
る。This clamper omits the formation of a guide pin hole for inserting the tip portion of the guide pin 13 by the slit portion 26 and makes the precision of the hole pitch unnecessary.
【0023】本発明に係る光コネクタは従来と同様、他
の光コネクタの結合を図6に示したクリップ7を用いて
保持してもよいし、又、例えばプッシュオン型のハウジ
ング内に本部材を組込むようにしてもよい。In the optical connector according to the present invention, the connection of other optical connectors may be held by using the clip 7 shown in FIG. 6 as in the conventional case, or the member may be provided in a push-on type housing, for example. May be incorporated.
【0024】[0024]
【発明の効果】以上、実施例と共に説明したように本発
明に係る光コネクタはその着脱に際し、光コネクタ同士
の位置決めを行うガイドピンの脱落がないので、着脱回
数が頻繁な箇所、例えば光コネクタ測定及び光コネクタ
切替装置などに用いて好適である。また、多芯光コネク
タで高所及び暗所における作業時にガイドピンの紛失を
避けることができる。As described above with reference to the embodiments, when the optical connector according to the present invention is attached or detached, the guide pins for positioning the optical connectors do not fall off, so that the place where the number of attachments and detachments is frequent, for example, the optical connector. It is suitable for use in measurement and optical connector switching devices. Further, the multi-core optical connector can avoid the loss of the guide pin when working in high places and dark places.
【図1】光コネクタの一実施例を示し、(A)はその斜
視図,(B)はそのA−A矢視断面図である。1A and 1B show an embodiment of an optical connector, FIG. 1A is a perspective view thereof, and FIG. 1B is a sectional view taken along line AA.
【図2】本実施例に係るクランパの斜視図である。FIG. 2 is a perspective view of a clamper according to this embodiment.
【図3】クランパの平面図及び正面図である。FIG. 3 is a plan view and a front view of a clamper.
【図4】光コネクタの着脱状態を示す概略図である。FIG. 4 is a schematic view showing a detached state of the optical connector.
【図5】他の一実施例に係るクランパの斜視図及び断面
図を示す。FIG. 5 is a perspective view and a sectional view of a clamper according to another embodiment.
【図6】従来の光コネクタの斜視図である。FIG. 6 is a perspective view of a conventional optical connector.
【図7】従来の光コネクタの着脱を表す概略図である。FIG. 7 is a schematic diagram showing attachment / detachment of a conventional optical connector.
10 光コネクタ 11 フェルール本体 12 光ファイバ 13 ガイドピン 14,18 ガイドピン穴 15 クランパ 16 クランパ本体 17 光コネクタ 19 ピン引抜治具 25 クランパ 26 スリット部 10 Optical Connector 11 Ferrule Main Body 12 Optical Fiber 13 Guide Pins 14, 18 Guide Pin Hole 15 Clamper 16 Clamper Main Body 17 Optical Connector 19 Pin Extraction Jig 25 Clamper 26 Slit Section
フロントページの続き (72)発明者 長沢 真二 東京都千代田区内幸町一丁目1番6号 日 本電信電話株式会社内 (72)発明者 佐武 俊明 東京都千代田区内幸町一丁目1番6号 日 本電信電話株式会社内Front Page Continuation (72) Inventor Shinji Nagasawa 1-6, Uchiyuki-cho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Toshiaki Satake 1-1-6 Uchiyuki-cho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation
Claims (1)
されており、且つ光ファイバ軸方向に貫通するガイドピ
ン穴を形成したフェルールを有する光コネクタであっ
て、 一端部がフェルール前端面より突出する一方、他端部が
当該フェルール後端面より突出し且つ当該他端部の先端
近傍に係止部を形成したガイドピンと、 上記フェルールの後端面側に配され、ガイドピン穴から
突出する上記ガイドピンの係止部と係止する係止手段を
有するクランパとを具備することを特徴とする光コネク
タ。1. An optical connector having a ferrule in which an end face of an optical fiber is positioned and arranged on a front end face, and a ferrule having a guide pin hole penetrating in the optical fiber axial direction is formed, one end of which protrudes from the front end face of the ferrule. On the other hand, the guide pin having the other end protruding from the rear end face of the ferrule and having a locking portion formed near the tip of the other end, and the guide pin disposed on the rear end face of the ferrule and protruding from the guide pin hole. An optical connector comprising: a locking portion and a clamper having locking means for locking.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19031392A JP3363479B2 (en) | 1992-07-17 | 1992-07-17 | Optical connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19031392A JP3363479B2 (en) | 1992-07-17 | 1992-07-17 | Optical connector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0634845A true JPH0634845A (en) | 1994-02-10 |
JP3363479B2 JP3363479B2 (en) | 2003-01-08 |
Family
ID=16256096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19031392A Expired - Lifetime JP3363479B2 (en) | 1992-07-17 | 1992-07-17 | Optical connector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3363479B2 (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0800100A1 (en) * | 1996-04-04 | 1997-10-08 | US Conec Ltd | Ferrule assembly for positively engaging a guide pin |
US6141471A (en) * | 1997-09-18 | 2000-10-31 | Kabushiki Kaisha Toshiba | Optical transmission module and its manufacturing method |
US6425836B1 (en) | 1998-10-19 | 2002-07-30 | Mizuno Corporation | Baseball or softball bat |
US6497516B1 (en) | 1997-12-17 | 2002-12-24 | Sumitomo Electric Industries, Ltd. | Guide pin for optical fiber connectors and optical fiber connector plug |
JP2003043299A (en) * | 2001-06-11 | 2003-02-13 | Corning Cable Systems Llc | Fiber optic connector and associated pin retainer |
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