JP4422669B2 - Optical fiber terminal processing tool and field assembly type optical connector assembly method - Google Patents

Optical fiber terminal processing tool and field assembly type optical connector assembly method Download PDF

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JP4422669B2
JP4422669B2 JP2005312359A JP2005312359A JP4422669B2 JP 4422669 B2 JP4422669 B2 JP 4422669B2 JP 2005312359 A JP2005312359 A JP 2005312359A JP 2005312359 A JP2005312359 A JP 2005312359A JP 4422669 B2 JP4422669 B2 JP 4422669B2
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optical fiber
assembly type
core wire
field assembly
optical connector
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JP2007121601A (en
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佳広 中谷
恭二 遅沢
茂 上田
雅信 豊永
邦明 寺川
博之 棚瀬
龍哉 中嶋
雅史 粟森
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Hitachi Cable Ltd
Nippon Telegraph and Telephone Corp
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Hitachi Cable Ltd
Nippon Telegraph and Telephone Corp
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Description

本発明は、現地組立型光コネクタに関するものである。
The present invention is related to field assembly type optical connector.

通信の分野においては、高速・大容量伝送が可能な光ファイバが伝送線路の主流となり、幹線から各家庭までの伝送経路を光ファイバ化するＦＴＴＨ（Ｆｉｂｅｒ Ｔｏ Ｔｈｅ Ｈｏｍｅ）の普及が進んでいる。このＦＴＴＨの構築にあたり、光ファイバを基板上のＶ溝の内部で突き合わせて軸合わせを行うと共に、その状態で光ファイバ心線を固定することで、簡易に光ファイバ心線同士の接続を行う、メカニカルスプライスを用いた光ファイバの接続が行われている（特許文献１参照）。   In the field of communication, an optical fiber capable of high-speed and large-capacity transmission has become the mainstream of transmission lines, and FTTH (Fiber To The Home), which uses an optical fiber for the transmission path from the trunk line to each home, has been spreading. In constructing this FTTH, the optical fibers are butted inside the V-groove on the substrate and aligned, and the optical fiber cores are fixed in this state, so that the optical fiber cores are easily connected to each other. Optical fibers are connected using a mechanical splice (see Patent Document 1).

しかし、メカニカルスプライスを用いて光ファイバを接続している場合、故障時の切り分けの際には、光ファイバを一度切断して装置とつないで調査を行った後に、再度メカニカルスプライスで接続し直すため、多くの手間がかかるという問題があった。   However, if the optical fiber is connected using a mechanical splice, in order to isolate it at the time of failure, the optical fiber is cut once and connected to the device, and then the mechanical splice is reconnected. There was a problem that it took a lot of work.

そこで、伝送経路の保守性や運用効率を向上させるため、光ファイバの接続における接続点の光コネクタ化が検討されている。そして、そのための方法として、光ファイバ（第一の光ファイバ）を予め光コネクタの内部のフェルールに内蔵固定している、メカニカルスプライスを応用した現地組立型の光コネクタが開発されている。   Therefore, in order to improve the maintainability and operational efficiency of the transmission path, the formation of an optical connector at the connection point in the connection of the optical fiber is being studied. As a method for this purpose, an on-site assembly type optical connector using a mechanical splice, in which an optical fiber (first optical fiber) is fixed in advance in a ferrule inside the optical connector, has been developed.

この現地組立型の光コネクタは、光ファイバが内蔵固定され先端研磨が施されてなるフェルールの後端部から突き出た光ファイバ（第一の光ファイバ）と別の光ファイバ（第二の光ファイバ）とを位置決め調心して、第一の光ファイバと第二の光ファイバとを突き合わせた状態で接続して、現地組立型の光コネクタと光ファイバ（第二の光ファイバ）とを固定することで光ファイバ同士の接続状態を維持する接続機構を有するフェルール付きメカニカルスプライスと、このフェルール付きメカニカルスプライスを収容するハウジングとを備えている。   This field assembly type optical connector is composed of an optical fiber (first optical fiber) protruding from the rear end of a ferrule having a built-in optical fiber fixed and polished at the tip, and another optical fiber (second optical fiber). ) Are aligned and connected in a state where the first optical fiber and the second optical fiber are butted together, and the field assembly type optical connector and the optical fiber (second optical fiber) are fixed. A mechanical splice with a ferrule having a connection mechanism for maintaining a connection state between optical fibers and a housing for housing the mechanical splice with a ferrule are provided.

ところで、上記の現地組立型の光コネクタの組立方法は、接続しようとする光ファイバ（第二の光ファイバ）の端末処理を、例えば、図４（ａ），図４（ｂ）に示すような、光ファイバホルダ４０を用いて行い、光ファイバ（第二の光ファイバ）を取り外した後、光ファイバ（第二の光ファイバ）を手で持って、光コネクタの内部に挿入し、光ファイバ（第二の光ファイバ）をたわませることで突合せ確認を行い、光ファイバをフェルール付きメカニカルスプライスにより接続・組立するものであった（特許文献２参照）。
特開２０００−２４１６６０号公報 特開２００３−１７２８４５号公報 By the way, in the assembly method of the above-mentioned field assembly type optical connector, the terminal processing of the optical fiber (second optical fiber) to be connected is performed, for example, as shown in FIGS. 4 (a) and 4 (b). After using the optical fiber holder 40 to remove the optical fiber (second optical fiber), hold the optical fiber (second optical fiber) by hand and insert it into the optical connector. The second optical fiber) was bent to confirm the match, and the optical fiber was connected and assembled by a mechanical splice with a ferrule (see Patent Document 2).
JP 2000-241660 A JP 2003-172845 A

ここで、光ファイバホルダ４０は、光ファイバ心線４５を真っ直ぐに把持するための溝４２（なお、溝４２としてはＶ字状のものが多い。）を備えた光ファイバホルダ（本体部）４１と、本体部４１の溝形成面側に開閉自在に取付けられたカバー４３ａ，４３ｂとで構成される。本体部４１の溝形成面には磁石４８が埋設されており、この磁石４８によって本体部４１と各カバー４３ａ，４３ｂとが磁着され、その結果、光ファイバ心線４５を把持している。   Here, the optical fiber holder 40 includes an optical fiber holder (main body portion) 41 provided with a groove 42 for holding the optical fiber core wire 45 straight (the groove 42 is often V-shaped). And covers 43a and 43b attached to the groove forming surface side of the main body 41 so as to be freely opened and closed. A magnet 48 is embedded in the groove forming surface of the main body 41, and the main body 41 and the covers 43 a and 43 b are magnetized by the magnet 48, and as a result, the optical fiber core wire 45 is held.

また、各カバー４３ａ，４３ｂの、溝４２との当接部にはそれぞれ、光ファイバ心線４５を押さえるための押さえゴム部材４４が設けられており、各押さえゴム部材４４が、溝４２の内部に収納されている光ファイバ心線４５の溝４２の延長方向へのずれを防いでいる。このように、光ファイバホルダは様々な部品の集合体であり、非常に高価なものであった。   In addition, a pressing rubber member 44 for pressing the optical fiber core wire 45 is provided at a contact portion of each cover 43a, 43b with the groove 42, and each pressing rubber member 44 is provided inside the groove 42. Is prevented from shifting in the extending direction of the groove 42 of the optical fiber 45 accommodated in the optical fiber. As described above, the optical fiber holder is an assembly of various parts and is very expensive.

また、光ファイバ（第二の光ファイバ）を手で持って挿入し組立作業を行うため、柱上等の不安定な作業場では、光ファイバ（第二の光ファイバ）の光コネクタへの挿入や突合せ確認の結果が作業者の技術レベルに依存し、容易且つ安定した接続作業が行うことが難しいという問題があった。   Also, since the optical fiber (second optical fiber) is inserted by hand and assembled for assembly work, the optical fiber (second optical fiber) can be inserted into the optical connector in an unstable work place such as on a pillar. The result of the matching check depends on the skill level of the operator, and there is a problem that it is difficult to perform an easy and stable connection operation.

そこで、本発明は上記問題を解決するために案出されたものであり、安価な手段で、不安定な作業場においても、容易に且つ安定した接続作業を実現できることにある。
The present invention has been devised to solve the above problems, a cheap means, even in an unstable workplace easily in and and stable connection work can be realized Turkey.

上記目的を達成するために、請求項１の発明は、現地組立型光コネクタの内部のフェルールに内蔵固定された第一の光ファイバと、前記現地組立型光コネクタの外部から前記現地組立型光コネクタの内部に挿入する第二の光ファイバとを位置決め調心して、前記第一の光ファイバと前記第二の光ファイバとを突き合わせた状態で接続して、前記現地組立型光コネクタと前記第二の光ファイバとを固定する際に使用する光ファイバの端末処理具であって、本体部及び前記本体部に取り付けられたカバーを有して前記第二の光ファイバを把持する心線把持具と、前記心線把持具を収納する溝が形成されているとともに、前記心線把持具を収納する溝の延長上に、前記心線把持具に把持された前記第二の光ファイバを収納する溝が形成されているベース部及び前記ベース部の上面側に開閉自在に取り付けられた蓋体を有するフォルダとを備え、前記心線把持具は、弾性部材からなり、外側から外力を加えることにより前記第二の光ファイバが把持されており、前記第二の光ファイバを収納する溝は、前記ベース部に収納された前記心線把持具の端部から前記ベース部の端部まで形成されているものである。
In order to achieve the above object, the invention of claim 1 includes a first optical fiber built in and fixed to a ferrule inside a field assembly type optical connector, and the field assembly type light from the outside of the field assembly type optical connector. A second optical fiber to be inserted into the connector is positioned and aligned, and the first optical fiber and the second optical fiber are connected in a face-to-face relationship, and the field assembly type optical connector and the second optical fiber are connected. An optical fiber terminal processing tool used when fixing the optical fiber of the optical fiber, and a core wire gripping tool for gripping the second optical fiber having a main body portion and a cover attached to the main body portion; And a groove for accommodating the second optical fiber gripped by the core wire gripper on an extension of the groove for storing the core wire gripper. Is formed And a folder having a scan unit and a lid member mounted openably on the upper surface of the base portion, the core wire gripper is made of an elastic member, said second optical fiber by applying an external force from the outside And the groove for accommodating the second optical fiber is formed from the end of the core wire gripper accommodated in the base portion to the end of the base portion.

また、請求項２に記載の発明は、現地組立型光コネクタの内部のフェルールに内蔵固定された第一の光ファイバと、前記現地組立型光コネクタの外部から前記現地組立型光コネクタの内部に挿入する第二の光ファイバとを位置決め調心して、前記第一の光ファイバと前記第二の光ファイバとを突き合わせた状態で接続して、前記現地組立型光コネクタと前記第二の光ファイバとを固定する現地組立型光コネクタの組立方法であって、請求項１に記載の光ファイバの端末処理具を用い、心線把持具に第二の光ファイバを収納した状態で前記第二の光ファイバの端末処理を行い、前記光ファイバの端末処理具から前記心線把持具を取り出した後、前記心線把持具に前記第二の光ファイバが把持された状態を維持したまま前記現地組立型光コネクタに前記第二の光ファイバを挿入して前記第一の光ファイバと突き合わせ接続するものである。 According to a second aspect of the present invention, there is provided a first optical fiber built in and fixed to a ferrule inside the field assembly type optical connector, and from the outside of the field assembly type optical connector to the inside of the field assembly type optical connector. Positioning and aligning the second optical fiber to be inserted, connecting the first optical fiber and the second optical fiber in contact with each other, the field assembly type optical connector and the second optical fiber, A method of assembling an on-site assembly type optical connector for fixing a second optical fiber using the optical fiber terminal processing tool according to claim 1 , wherein the second optical fiber is housed in a core wire gripping tool. After the fiber end processing is performed and the core wire gripping tool is taken out of the optical fiber terminal processing tool, the on-site assembly type is maintained while the second optical fiber is held by the core wire gripping tool. Optical connector And inserting the second optical fiber is intended to be connected against the said first optical fiber.

本発明によれば、安価な手段で、不安定な作業場においても、容易に且つ安定した接続作業を安価に実現できる。 According to the present invention, in inexpensive means, even in an unstable workplace, Ru can be realized at low cost easily and stable connection work.

以下、本発明を実施するための最良の形態を図面に基づいて詳述する。   Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

本発明の実施の形態に係る心線把持具を図１に示す。   FIG. 1 shows a cord gripping tool according to an embodiment of the present invention.

図１に示すように、本発明の実施の形態に係る心線把持具は、光ファイバの光コネクタへの組立を簡易にするためのものであって、弾性材料からなり光ファイバの長手方向に沿って細長く形成された本体部１０１を有している。   As shown in FIG. 1, the core wire gripper according to the embodiment of the present invention is for simplifying the assembly of an optical fiber to an optical connector, and is made of an elastic material in the longitudinal direction of the optical fiber. It has a main body portion 101 that is elongated along.

本実施形態の本体部１０１には、光ファイバ（第二の光ファイバ）を収容する略Ｖ字状の溝１０２が形成され、本体部１０１の溝形成面側に開閉自在にカバー１０３が取り付けられている。カバー１０３には溝１０２の内部に収納した光ファイバを把持するための凸部１０４が形成されている。   In the main body 101 of this embodiment, a substantially V-shaped groove 102 for accommodating an optical fiber (second optical fiber) is formed, and a cover 103 is attached to the groove forming surface side of the main body 101 so as to be freely opened and closed. ing. The cover 103 is formed with a convex portion 104 for gripping the optical fiber housed in the groove 102.

本実施形態では、本体部１０１にカバー１０３を合わせた状態の断面形状は、単心ドロップケーブルの断面形状（約２ｍｍ×約３ｍｍ）と略同等に形成されている。   In the present embodiment, the cross-sectional shape of the state in which the cover 103 is combined with the main body 101 is formed substantially equivalent to the cross-sectional shape (about 2 mm × about 3 mm) of the single-core drop cable.

また、図２に示すように、本実施形態の心線把持具２１０は、光ファイバ（第二の光ファイバ）２２０の端末処理（被覆除去や端面カット）を行う際に、市場に流通している単心ドロップケーブルの端末処理（光ファイバ（第二の光ファイバ）２２０の被覆除去、端面カット）を行う際に使用する、例えばフォルダ２０１を用いることができる。フォルダ２０１は、ベース部２０２とベース部２０２の上面側に開閉自在に取り付けられた蓋体２０３とを有している。ベース部２０２には、単心ドロップケーブルをセットするための溝２０４が形成されている。   As shown in FIG. 2, the core wire gripper 210 according to the present embodiment is distributed in the market when terminal processing (cover removal and end face cutting) of the optical fiber (second optical fiber) 220 is performed. For example, a folder 201 can be used for terminal processing of a single-core drop cable (for example, coating removal of the optical fiber (second optical fiber) 220, end face cutting). The folder 201 includes a base portion 202 and a lid 203 attached to the upper surface side of the base portion 202 so as to be freely opened and closed. A groove 204 for setting a single core drop cable is formed in the base portion 202.

本実施形態では、心線把持具２１０の本体部２１１に形成された溝２１２の内部に収納された光ファイバ（第二の光ファイバ）２２０が、カバー２１３によって挟まれた状態になり、この状態のまま、フォルダ２０１の溝２０４に配設する（外側から外力を加える）ことで心線把持具が弾性変形され、光ファイバを把持する把持力が心線把持具に発生する。   In the present embodiment, the optical fiber (second optical fiber) 220 housed in the groove 212 formed in the main body 211 of the core wire gripper 210 is sandwiched by the cover 213, and this state The core wire gripping tool is elastically deformed by being disposed in the groove 204 of the folder 201 (applying an external force from the outside), and a gripping force for gripping the optical fiber is generated in the core wire gripping tool.

これにより、光ファイバの端末処理（被覆除去、端面カット）時の、光ファイバ（第二の光ファイバ）２２０の溝２１２の延長方向へのずれを防ぐことができ、適正な端末処理をスムーズに行うことができる。   As a result, it is possible to prevent the optical fiber (second optical fiber) 220 from shifting in the extending direction of the groove 212 during the end processing of the optical fiber (coating removal, end face cutting), and smooth the appropriate end processing. It can be carried out.

本実施形態の心線把持具を用いた現地組立型の光コネクタの組立方法を図２、図３によって説明する。   A method for assembling an on-site assembly type optical connector using the core wire gripping tool of the present embodiment will be described with reference to FIGS.

本実施形態の心線把持具は、前述の図２に示したように、光ファイバの端末処理を行い、フォルダ２０１から、心線把持具２１０を取り出す。   As shown in FIG. 2 described above, the core wire gripper of the present embodiment performs an optical fiber terminal process, and takes out the core wire gripper 210 from the folder 201.

次いで、図３に示すように、心線把持具３０１を指で挟み込んだ状態で、組立冶具３１０上にセットされた現地組立型の光コネクタ３２０側へ、組立冶具３１０上に形成されたガイド溝３１１に沿ってスライドさせる。光ファイバ３０２の先端を光コネクタ３２０の内部へと挿入し、その光ファイバ３０２を光コネクタ３２０の内部のフェルールに内蔵固定された光ファイバ（第一の光ファイバ）と突合せ接続を行う。このとき、心線把持具３０１を指で挟み込むことで、光ファイバ３０２は溝３０３の内部で把持される。また、心線把持具３０１を組立冶具３１０上のガイド溝３１１にそってスライドさせることができるため、簡易な接続・組立を実現することができる。   Next, as shown in FIG. 3, the guide groove formed on the assembly jig 310 toward the field assembly type optical connector 320 set on the assembly jig 310 with the core wire gripping tool 301 sandwiched between fingers. Slide along 311. The tip of the optical fiber 302 is inserted into the optical connector 320, and the optical fiber 302 is butt-connected to the optical fiber (first optical fiber) that is built in and fixed to the ferrule inside the optical connector 320. At this time, the optical fiber 302 is gripped inside the groove 303 by sandwiching the core wire gripping tool 301 with a finger. Further, since the core wire gripping tool 301 can be slid along the guide groove 311 on the assembly jig 310, a simple connection / assembly can be realized.

本発明の一実施例を示す心線把持具の斜視図である。It is a perspective view of the core wire grasping tool which shows one Example of this invention. （ａ）乃至（ｃ）は、本発明による心線把持具を使用した光ファイバの端末処理を示した斜視図である。(A) thru | or (c) is the perspective view which showed the terminal process of the optical fiber which uses the core wire holding | gripping tool by this invention. （ａ）及び（ｂ）は、本発明による現地組立型光コネクタの組立方法を示した斜視図である。(A) And (b) is the perspective view which showed the assembly method of the field assembly type optical connector by this invention. （ａ）及び（ｂ）は、従来技術による光ファイバの端末処理を示した斜視図である。(A) And (b) is the perspective view which showed the terminal process of the optical fiber by a prior art.

符号の説明Explanation of symbols

４１ 光ファイバホルダ（本体部）
４２ 溝
４３ａ カバー
４３ｂ カバー
４４ 押さえゴム部材
４５ 光ファイバ心線
１０１ 本体部
１０２ 溝
１０３ カバー
１０４ 凸部
２０１ フォルダ
２０２ ベース部
２０３ 蓋体
２０４ 溝
２１０ 心線把持具
２１１ 本体部
２１２ 溝
２１３ カバー
２２０ 光ファイバ（第二の光ファイバ）
３０１ 心線把持具
３０２ 光ファイバ（第二の光ファイバ）
３０３ 溝
３１０ 組立冶具
３１１ ガイド溝
３２０ 光コネクタ 41 Optical fiber holder (main body)
42 Groove 43a Cover 43b Cover 44 Holding rubber member 45 Optical fiber core wire 101 Main body portion 102 Groove 103 Cover 104 Convex portion 201 Folder 202 Base portion 203 Lid body 204 Groove 210 Core wire gripper 211 Main body portion 212 Groove 213 Cover 220 Optical fiber (Second optical fiber)
301 optical fiber gripper 302 optical fiber (second optical fiber)
303 groove 310 assembly jig 311 guide groove 320 optical connector

Claims (2)

現地組立型光コネクタの内部のフェルールに内蔵固定された第一の光ファイバと、前記現地組立型光コネクタの外部から前記現地組立型光コネクタの内部に挿入する第二の光ファイバとを位置決め調心して、前記第一の光ファイバと前記第二の光ファイバとを突き合わせた状態で接続して、前記現地組立型光コネクタと前記第二の光ファイバとを固定する際に使用する光ファイバの端末処理具であって、
本体部及び前記本体部に取り付けられたカバーを有して前記第二の光ファイバを把持する心線把持具と、
前記心線把持具を収納する溝が形成されているとともに、前記心線把持具を収納する溝の延長上に、前記心線把持具に把持された前記第二の光ファイバを収納する溝が形成されているベース部及び前記ベース部の上面側に開閉自在に取り付けられた蓋体を有するフォルダとを備え、
前記心線把持具は、弾性部材からなり、外側から外力を加えることにより前記第二の光ファイバが把持されており、
前記第二の光ファイバを収納する溝は、前記ベース部に収納された前記心線把持具の端部から前記ベース部の端部まで形成されていることを特徴とする光ファイバの端末処理具。 The first optical fiber built in and fixed to the ferrule inside the field assembly type optical connector and the second optical fiber inserted into the field assembly type optical connector from the outside of the field assembly type optical connector are positioned and adjusted. The end of the optical fiber used when the first optical fiber and the second optical fiber are connected in a state of being abutted and the field assembly type optical connector and the second optical fiber are fixed. A processing tool,
A core wire gripper having a main body portion and a cover attached to the main body portion and gripping the second optical fiber;
A groove for storing the core wire gripper is formed, and a groove for storing the second optical fiber gripped by the core wire gripper is formed on an extension of the groove for storing the core wire gripper. A folder having a base portion formed and a lid attached to the upper surface side of the base portion so as to be freely opened and closed;
The core wire gripper is made of an elastic member, and the second optical fiber is gripped by applying an external force from the outside,
The groove for accommodating the second optical fiber is formed from the end of the core wire gripping tool accommodated in the base portion to the end of the base portion, characterized in that the end processing tool of the optical fiber is provided. . 現地組立型光コネクタの内部のフェルールに内蔵固定された第一の光ファイバと、前記現地組立型光コネクタの外部から前記現地組立型光コネクタの内部に挿入する第二の光ファイバとを位置決め調心して、前記第一の光ファイバと前記第二の光ファイバとを突き合わせた状態で接続して、前記現地組立型光コネクタと前記第二の光ファイバとを固定する現地組立型光コネクタの組立方法であって、
請求項１に記載の光ファイバの端末処理具を用い、心線把持具に第二の光ファイバを収納した状態で前記第二の光ファイバの端末処理を行い、前記光ファイバの端末処理具から前記心線把持具を取り出した後、前記心線把持具に前記第二の光ファイバが把持された状態を維持したまま前記現地組立型光コネクタに前記第二の光ファイバを挿入して前記第一の光ファイバと突き合わせ接続することを特徴とする現地組立型光コネクタの組立方法。 The first optical fiber built in and fixed to the ferrule inside the field assembly type optical connector and the second optical fiber inserted into the field assembly type optical connector from the outside of the field assembly type optical connector are positioned and adjusted. The assembly method of the field assembly type optical connector for fixing the field assembly type optical connector and the second optical fiber by connecting the first optical fiber and the second optical fiber in a face-to-face relationship. Because
Using the optical fiber terminal processing tool according to claim 1 , the terminal processing of the second optical fiber is performed in a state where the second optical fiber is accommodated in the core wire gripping tool, and the optical fiber terminal processing tool is used. After removing the core wire gripper, the second optical fiber is inserted into the field assembly type optical connector while maintaining the state where the second optical fiber is gripped by the core wire gripper. A method of assembling an on-site assembly type optical connector, comprising butt-connecting with an optical fiber.
JP2005312359A 2005-10-27 2005-10-27 Optical fiber terminal processing tool and field assembly type optical connector assembly method Expired - Fee Related JP4422669B2 (en)

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