JP2007279418A - Tool for optical connector and optical connector with tool - Google Patents

Tool for optical connector and optical connector with tool Download PDF

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JP2007279418A
JP2007279418A JP2006106160A JP2006106160A JP2007279418A JP 2007279418 A JP2007279418 A JP 2007279418A JP 2006106160 A JP2006106160 A JP 2006106160A JP 2006106160 A JP2006106160 A JP 2006106160A JP 2007279418 A JP2007279418 A JP 2007279418A
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connector
insertion member
optical connector
movable end
pair
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JP4684933B2 (en
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Yen Tan Khee
キー・イェン・タン
Kazuhiro Takizawa
和宏 瀧澤
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Fujikura Ltd
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Fujikura Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool for opening and closing split elements that are divided into halves of the clamp part of an optical connector having the clamp part which clamps a pair of optical fibers between the split elements by inserting and detaching a wedge-shaped insertion member, especially the tool which includes a ring-shaped insertion member driving part for removing the insertion member; and to provide a technology to achieve the improvement of workability of assembling the optical connector (including insertion of the insertion member into the elements) and certainly prevent the dropout of the optical connecter after assembled. <P>SOLUTION: The tool 2 for optical connector includes: a connector holder part 22 which holds the optical connector 3 between a pair of connector holding chips 22b and 22c which project outward from the ring-shaped insertion member driving part 23; and a plunging auxiliary piece 294 which plunges the optical connector 3 between the pair of connector holding chips 22b and 22c by a turning operation. An optical connector 1 having the tool is also provided. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、突き合わせ接続した光ファイバの対をクランプして光ファイバ同士の接続状態を維持する機構を具備する光コネクタに適用される光コネクタ用工具、工具付き光コネクタに関する。   The present invention relates to an optical connector tool and a tool-equipped optical connector that are applied to an optical connector that includes a mechanism that maintains a connection state between optical fibers by clamping a pair of butt-connected optical fibers.

近年、光ファイバ先端への組立作業を、工場以外の接続現場にて行うことができる光コネクタ(現場付け光コネクタ)の一例として、予め光ファイバを内装固定して先端面に研磨を施したフェルールと、このフェルールの後端部(先端面とは反対の側)に配置したクランプ部とを具備したものがある。
この光コネクタでは、クランプ部の半割りの素子間に楔を割り込ませて開放した状態で、コネクタ後端側からクランプ部に光ファイバを挿入でき、クランプ部内でフェルール側の光ファイバと突き合わせ接続することができる。そして、クランプ部から楔を引き抜くと、クランプ部の半割りの素子間に、突き合わせ状態の光ファイバがクランプされて、突き合わせ接続状態が維持される。したがって、短時間で、簡単に、光ファイバの先端に光コネクタを組み立てることができる。
In recent years, as an example of an optical connector (on-site optical connector) that can be assembled to the tip of an optical fiber at a connection site other than a factory, a ferrule whose inner surface is fixed in advance and whose tip surface is polished And a clamp portion disposed at the rear end portion (the side opposite to the front end surface) of the ferrule.
In this optical connector, an optical fiber can be inserted into the clamp part from the rear end side of the connector with a wedge inserted between the half-divided elements of the clamp part, and the optical fiber on the ferrule side is butt-connected in the clamp part. be able to. When the wedge is pulled out from the clamp part, the optical fiber in the butt state is clamped between the halved elements of the clamp part, and the butt connection state is maintained. Therefore, the optical connector can be assembled to the tip of the optical fiber easily in a short time.

ところで、クランプ部の素子はサイズが小さいため、素子の開閉操作を行う専用の工具(光コネクタ組立工具)が提案されている(例えば、特許文献1、2)。
しかしながら、上述した光コネクタ組立工具は、コネクタ保持台と、楔を取り付けた楔支持台をコネクタ保持台に対して進退動可能に案内する工具ガイドとを基台上に取り付けた構造であり、楔を、前記コネクタ保持台に保持した光コネクタのクランプ部に正確に挿脱するために、コネクタ保持台、楔支持台、工具ガイドを高精度に形成する必要がある。また、構造が複雑かつ大掛かりであるため、小型化、低コスト化が困難であった。
By the way, since the element of a clamp part is small in size, the tool (optical connector assembly tool) for exclusive use which opens and closes an element is proposed (for example, patent documents 1 and 2).
However, the optical connector assembling tool described above has a structure in which a connector holding base and a tool guide for guiding a wedge support base with a wedge attached thereto so as to be movable forward and backward are attached to the base. In order to accurately insert and remove from the clamp portion of the optical connector held on the connector holding base, it is necessary to form the connector holding base, the wedge support base, and the tool guide with high accuracy. In addition, since the structure is complicated and large, it is difficult to reduce the size and cost.

これに鑑みて、本発明者等は、現場付け光コネクタのクランプ部の半割り素子間への楔の挿脱を楽に行える、小型、低コストの光コネクタ用工具を、すでに提案している(例えば、特許文献3)。
この光コネクタ用工具は、リング状の介挿部材駆動部と、この介挿部材駆動部の外側に突設された一対の突壁の間に光コネクタ(現場付け光コネクタ)を収容するホルダ本体と、介挿部材駆動部において前記ホルダ本体とは反対の側(可動端部)からホルダ本体側に突出された楔状の介挿部材とを具備し、ホルダ本体の収容凹所内に介挿部材の先端が突出されている。そして、コネクタ収容部の収容凹所に収容した光コネクタのクランプ部の素子間に、介挿部材の先端を割り込ませた状態で、介挿部材駆動部を両側からの側圧によって変形させ、可動端部とホルダ本体との間の離隔距離を増大させることで、クランプ部から素子を引き抜くことができる。クランプ部の素子間に対する介挿部材の挿脱には、比較的強い力を要するが、この光コネクタ用工具によれば、側圧によって介挿部材駆動部を変形させることで、介挿部材の引き抜きを楽に行える。
特開2002−23006号公報 特開2002−55259号公報 特開2005−99706号公報
In view of this, the present inventors have already proposed a small, low-cost optical connector tool that can easily insert and remove the wedge between the half-divided elements of the clamp portion of the on-site optical connector ( For example, Patent Document 3).
This optical connector tool is a holder main body that accommodates an optical connector (field-attached optical connector) between a ring-shaped insertion member driving portion and a pair of protruding walls protruding outside the insertion member driving portion. And a wedge-shaped insertion member that protrudes from the side opposite to the holder body (movable end) to the holder body side in the insertion member drive unit, and the insertion member is inserted into the accommodation recess of the holder body. The tip is protruding. Then, in a state where the tip of the insertion member is interrupted between the elements of the clamp portion of the optical connector housed in the housing recess of the connector housing portion, the insertion member driving portion is deformed by the side pressure from both sides, and the movable end By increasing the separation distance between the part and the holder body, the element can be pulled out from the clamp part. A relatively strong force is required to insert and remove the insertion member between the elements of the clamp portion. However, according to this optical connector tool, the insertion member driving portion is pulled out by deforming the insertion member drive portion by the side pressure. Can be done easily.
JP 2002-23006 A JP 2002-55259 A JP 2005-99706 A

ところで、特許文献3のように、介挿部材引き抜き用のリング状の介挿部材駆動部を具備する構成の光コネクタ用工具にあっては、光コネクタのクランプ部の素子間に介挿部材を割り込ませる際に、光コネクタを介挿部材に向けて強く押圧するが、直接、手指で光コネクタ側面を押す際に、光コネクタの側面の凹凸によって押しにくく(凹凸によって、手指による触感が悪い)、作業しにくいことがある。
また、介挿部材駆動部の外側に突設された一対の突壁の間に光コネクタ(現場付け光コネクタ)を収容するコネクタ収容部(コネクタホルダ部。特許文献3のホルダ本体)を設けた場合、例えば足場が悪い作業現場や、狭隘な作業スペースでの作業では、コネクタ収容部の一対の突壁の間に光コネクタを押し込む作業に手間が掛かることがあった。光コネクタは、クランプ部の素子間に介挿部材を割り込ませるまで、位置や向きが安定しないため、コネクタ収容部に光コネクタを収めた後、光コネクタを介挿部材に押し込む作業を行うまでに、光コネクタがコネクタ収容部から脱落してしまうことがあった。
Incidentally, as in Patent Document 3, in an optical connector tool having a ring-shaped insertion member driving unit for pulling out an insertion member, an insertion member is provided between elements of a clamp portion of the optical connector. When interrupting, the optical connector is strongly pressed toward the insertion member, but when directly pressing the side of the optical connector with fingers, it is difficult to press due to the irregularities on the side of the optical connector. It may be difficult to work.
Further, a connector housing portion (connector holder portion; holder body of Patent Document 3) for housing an optical connector (field-attached optical connector) is provided between a pair of projecting walls projecting outside the insertion member driving portion. In this case, for example, in a work site where the scaffolding is poor or work in a narrow work space, it takes time to push the optical connector between the pair of protruding walls of the connector housing portion. Since the position and orientation of the optical connector are not stable until the insertion member is inserted between the elements of the clamp part, after the optical connector is stored in the connector housing part, the optical connector is pushed into the insertion member. In some cases, the optical connector falls off the connector housing.

本発明は上記事情に鑑みてなされたもので、光コネクタの組み付け作業(素子間に介挿部材を割り込ませる作業を含む)を簡単に効率良く行える光コネクタ用工具、工具付き光コネクタを提供することを目的とする。   The present invention has been made in view of the above circumstances, and provides an optical connector tool and an optical connector with a tool that can easily and efficiently perform assembly work of an optical connector (including work to insert an insertion member between elements). For the purpose.

上記課題を解決するために、本発明では以下の構成を提供する。
第1の発明は、突き合わせ接続した光ファイバの対を半割りの素子の間にバネの弾性によってクランプして前記光ファイバ同士の接続状態を維持するクランプ部を具備する光コネクタ用の工具であって、前記クランプ部の前記素子の間に割り込ませることによって前記素子間を押し開いた状態に保ち、素子間への前記光ファイバの挿脱が可能な状態を維持する介挿部材と、リング状に形成され、前記介挿部材が突設されている第1可動端部及び該第1可動端部とは反対の側に位置し前記介挿部材の先端側が貫通された第2可動端部を有する介挿部材駆動部と、前記第2可動端部から前記介挿部材駆動部の外側に突設された一対のコネクタ保持片の間に前記光コネクタを挟み込んで保持するコネクタホルダ部と、前記第2可動端部からヒンジ部を介して延出され、回転操作によって、前記コネクタホルダ部の前記介挿部材駆動部とは反対の側から押し当てるようにして、前記一対のコネクタ保持片の前記第2可動端部からの突出先端間に架設できる押し込み補助片、及び、前記一対のコネクタ保持片の前記第2可動端部からの突出先端同士の間に架設した前記押し込み補助片の先端が着脱可能に連結されることで、前記押し込み補助片を前記第2可動端部に引き留める補助片引留部を有してなる、コネクタカバー部とを備え、前記コネクタホルダ部の一対のコネクタ保持片の一方又は両方には、前記介挿部材を前記光コネクタのクランプ部の一対の素子間に割り込ませる際に前記光コネクタを前記介挿部材とは反対の側から押圧するための支圧部が突設され、前記介挿部材駆動部は、前記第1可動端部と前記第2可動端部との間に位置する部分に両側から作用させた側圧によって、前記第1可動端部と前記第2可動端部との間の距離が増大するように変形されることで、前記介挿部材の前記第2可動端部から外側への突出量を縮小するように構成され、前記クランプ部の素子間に割り込ませておいた前記介挿部材を前記クランプ部から引き抜くことができ、前記コネクタホルダ部の一対のコネクタ保持片間に架設した前記押し込み補助片の先端を前記補助片引留部に連結して、前記コネクタカバー部を、前記一対のコネクタ保持片間に保持された光コネクタを取り囲む枠状体に組み立てた状態で、前記前記押し込み補助片と前記第1可動端部とを互いに接近させる圧縮力によって前記介挿部材駆動部を変形させることで、前記第2可動端部を貫通して前記介挿部材駆動部の外側に突出された前記介挿部材の先端部を、前記光コネクタのクランプ部の一対の素子間に割り込ませることができることを特徴とする光コネクタ用工具を提供する。
第2の発明は、第1の発明の発明において、前記押し込み補助片は、前記第2可動端部に介挿部材駆動部の外側に突出するように突設された補助片支持壁の前記第2可動端部からの突出先端から前記ヒンジ部を介して延出され、前記補助片引留部は、前記第2可動端部に介挿部材駆動部の外側に突出するように突設された補助片引留壁の前記第2可動端部からの突出先端に設けられ、前記押し込み補助片と前記補助片引留壁とは、前記第2可動端部において、前記介挿部材駆動部の周方向に離隔して、前記コネクタホルダ部を構成する一対のコネクタ保持片の両側に設けられていることを特徴とする光コネクタ用工具を提供する。
第3の発明は、第2の発明において、前記補助片引留部が、前記補助片引留壁の前記第2可動端部からの突出先端に形成され、前記押し込み補助片の前記第2可動端部からの突出先端部に突設された嵌合突起が圧入して嵌め込まれる嵌合凹部であり、前記コネクタホルダ部の一対のコネクタ保持片の間に架設した前記押し込み補助片の先端の前記嵌合突起を前記補助片引留壁の前記嵌合凹部に嵌め込むことで、前記押し込み補助片が前記第2可動端部に引き留められることを特徴とする光コネクタ用工具を提供する。
第4の発明は、第3の発明において、前記コネクタカバー部の前記補助片支持壁が、前記コネクタホルダ部の一対のコネクタ保持片の内の一方の一部であり、前記補助片引留壁が、前記コネクタホルダ部の一対のコネクタ保持片の内の他方の一部であることを特徴とする光コネクタ用工具を提供する。
第5の発明は、第3又は第4の発明において、前記コネクタホルダ部の一対のコネクタ保持片は、前記第2可動端部において、前記介挿部材駆動部の周方向に離隔して設けられ、対向する両側からの側圧による前記介挿部材駆動部の変形に伴い第2可動端部が前記介挿部材駆動部の外側に膨らむように変形されることで、前記嵌合凹部に嵌め込まれていた前記押し込み補助片の嵌合突起が前記嵌合凹部から引き抜かれるとともに、前記コネクタホルダ部の一対のコネクタ保持片が互いに離れる方向に移動して開放されることを特徴とする光コネクタ用工具を提供する。
第6の発明は、第5の発明において、前記第2可動端部は、前記介挿部材が通される介挿部材用窓によって2つの可動端部分割体に分割され、前記介挿部材駆動部の周方向において前記介挿部材用窓を介して両側の可動端部分割体が橋絡部を介して橋絡され、前記コネクタホルダ部の一対のコネクタ保持片が、前記第2可動端部において、前記橋絡部を介して両側の可動端部分割体に振り分け配置され、前記コネクタカバー部の前記押し込み補助片と前記補助片引留壁とが、前記第2可動端部において、前記橋絡部を介して両側の可動端部分割体に振り分け配置されていることを特徴とする光コネクタ用工具を提供する。
第7の発明は、第5又は第6の発明において、前記光コネクタのクランプ部の一対の素子間に割り込ませておいた介挿部材が、両側からの側圧によって介挿部材駆動部が変形して前記一対の素子間から引き抜かれた後に、前記側圧による介挿部材駆動部の変形の継続によって、前記補助片引留壁の前記嵌合凹部に嵌め込まれていた前記押し込み補助片の嵌合突起が前記嵌合凹部から引き抜かれることを特徴とする光コネクタ用工具を提供する。
第8の発明は、第1〜第7のいずれかの発明において、前記光コネクタが、スリーブ状のハウジング本体と、このハウジング本体の一側部に突設されたラッチとを具備するものであり、前記コネクタホルダ部の一対のコネクタ保持片の間に、前記ハウジング本体を収納するハウジング本体収納溝と、該ハウジング本体収納溝から前記介挿部材駆動部の前記第2可動端部とは反対の側に延び、前記光コネクタの前記ラッチを収納する、前記ハウジング本体収納溝よりも狭幅に形成されたラッチ収納溝とを具備するコネクタ収納溝が確保され、前記コネクタ保持片の前記ハウジング本体収納溝を介して前記第2可動端部とは反対の側に位置する部分が前記支圧部として機能し、前記押し込み補助片は、前記コネクタ収納溝を介して両側のコネクタ保持片の間に架設されるようになっていることを特徴とする光コネクタ用工具を提供する。
第9の発明は、第1〜第8のいずれかの発明において、前記介挿部材駆動部と前記コネクタホルダ部とを、合成樹脂によって一体成形した1部品の工具成形本体を具備することを特徴とする光コネクタ用工具を提供する。
第10の発明は、突き合わせ接続した光ファイバの対を半割りの素子の間にバネの弾性によってクランプして光ファイバ同士の接続状態を維持するクランプ部を具備する光コネクタの外側に第1〜第9のいずれかの光コネクタ用工具が取り付けられ、前記クランプ部の素子の間に、前記光コネクタ用工具の介挿部材が割り込ませてあることを特徴とする工具付き光コネクタを提供する。
In order to solve the above problems, the present invention provides the following configuration.
The first invention is a tool for an optical connector comprising a clamp portion that clamps a pair of optical fibers that are butt-connected to each other by the elasticity of a spring between halved elements and maintains the connection state between the optical fibers. An insertion member that keeps the space between the elements by being interrupted between the elements of the clamp portion, and maintains a state in which the optical fiber can be inserted and removed between the elements, and in a ring shape A first movable end formed and projecting from the insertion member; and a second movable end located on a side opposite to the first movable end and penetrating the distal end side of the insertion member. An insertion member driving portion; a connector holder portion for holding the optical connector between a pair of connector holding pieces protruding from the second movable end portion to the outside of the insertion member driving portion; 2 Hinge from movable end Protruding tips from the second movable end portion of the pair of connector holding pieces so as to be pressed from the side opposite to the insertion member driving portion of the connector holder portion by rotation operation A push-in auxiliary piece that can be installed in between, and a tip of the push-up auxiliary piece that is laid between the protruding tips from the second movable end of the pair of connector holding pieces are detachably connected, A connector cover portion having an auxiliary piece retaining portion that holds the pushing auxiliary piece to the second movable end portion, and one or both of the pair of connector holding pieces of the connector holder portion includes the insertion member. Is inserted between the pair of elements of the clamp portion of the optical connector, a support pressure portion for pressing the optical connector from the side opposite to the insertion member is protruded, and the insertion member drive portion is , The distance between the first movable end portion and the second movable end portion is increased by the side pressure applied from both sides to the portion located between the first movable end portion and the second movable end portion. The insertion member configured to reduce the protruding amount of the insertion member from the second movable end portion to the outside by being deformed in such a manner as to be inserted between the elements of the clamp portion. The tip of the push-in auxiliary piece that is laid between a pair of connector holding pieces of the connector holder part that can be pulled out from the clamp part is connected to the auxiliary piece retaining part, and the connector cover part is connected to the pair of connectors. The insertion member drive unit is deformed by a compressive force that brings the push-in assisting piece and the first movable end portion close to each other in a state where the optical connector held between the holding pieces is assembled into a frame-like body. And said The distal end portion of the insertion member protruding through the second movable end portion and protruding to the outside of the insertion member driving portion can be inserted between a pair of elements of the clamp portion of the optical connector. An optical connector tool is provided.
According to a second aspect of the present invention, in the first aspect of the invention, the push-in assisting piece is formed of the auxiliary piece support wall that protrudes from the second movable end portion so as to protrude outside the insertion member driving portion. 2 Auxiliary extension extending from the projecting tip from the movable end through the hinge, and the auxiliary piece retaining part projecting from the second movable end so as to project outside the insertion member drive unit Provided at the projecting tip of the single retaining wall from the second movable end, and the pushing-in auxiliary piece and the auxiliary piece retaining wall are separated from each other in the circumferential direction of the insertion member driving unit at the second movable end. And the tool for optical connectors characterized by being provided in the both sides of a pair of connector holding piece which comprises the said connector holder part is provided.
According to a third invention, in the second invention, the auxiliary piece retaining portion is formed at a protruding tip of the auxiliary piece retaining wall from the second movable end portion, and the second movable end portion of the pushing auxiliary piece. The fitting protrusion projecting from the projecting tip of the fitting is a fitting recess into which the fitting protrusion is press-fitted and fitted between the pair of connector holding pieces of the connector holder part, and the fitting of the tip of the pushing assisting piece laid between the pair of connector holding pieces The optical connector tool is characterized in that the push-in assisting piece is fastened to the second movable end portion by fitting a protrusion into the fitting recess of the auxiliary piece retaining wall.
In a fourth aspect based on the third aspect, the auxiliary piece support wall of the connector cover portion is one part of a pair of connector holding pieces of the connector holder portion, and the auxiliary piece retaining wall is An optical connector tool is provided which is a part of the other of the pair of connector holding pieces of the connector holder portion.
According to a fifth invention, in the third or fourth invention, the pair of connector holding pieces of the connector holder portion are provided apart from each other in the circumferential direction of the insertion member driving portion at the second movable end portion. The second movable end portion is deformed so as to swell outside the insertion member driving portion in accordance with the deformation of the insertion member driving portion due to the side pressure from both sides facing each other. An optical connector tool characterized in that the fitting protrusion of the push-in auxiliary piece is pulled out from the fitting recess, and the pair of connector holding pieces of the connector holder part are moved away from each other and released. provide.
In a sixth aspect based on the fifth aspect, the second movable end portion is divided into two movable end portion divided bodies by an insertion member window through which the insertion member is passed, and the insertion member drive In the circumferential direction of the portion, the movable end portion split bodies on both sides are bridged via the bridging portion via the insertion member window, and the pair of connector holding pieces of the connector holder portion are connected to the second movable end portion. In the second movable end portion, the push-in auxiliary piece and the auxiliary piece retaining wall of the connector cover portion are arranged at the second movable end portion. Provided is an optical connector tool characterized in that it is distributed and arranged between movable end divided bodies on both sides via a section.
According to a seventh invention, in the fifth or sixth invention, the insertion member driving portion deformed between the pair of elements of the clamp portion of the optical connector is deformed by a side pressure from both sides. Then, after being pulled out from between the pair of elements, the fitting protrusion of the push-in auxiliary piece fitted into the fitting concave portion of the auxiliary piece retaining wall is continued by the deformation of the insertion member driving portion due to the lateral pressure. An optical connector tool is provided that is pulled out from the fitting recess.
According to an eighth invention, in any one of the first to seventh inventions, the optical connector includes a sleeve-shaped housing body and a latch projecting from one side of the housing body. A housing body housing groove for housing the housing body between the pair of connector holding pieces of the connector holder portion, and the housing body housing groove opposite to the second movable end portion of the insertion member driving portion. A connector housing groove extending to the side and housing the latch of the optical connector and having a latch housing groove formed narrower than the housing body housing groove, and the housing holding housing of the connector holding piece is secured. A portion located on the side opposite to the second movable end through the groove functions as the pressure-supporting portion, and the push-in auxiliary piece is connected to the connector on both sides through the connector storage groove. To provide an optical connector tool, characterized in that is adapted to be installed between the supporting pieces.
According to a ninth aspect of the present invention, in any one of the first to eighth aspects, the insertion member driving portion and the connector holder portion are provided with a one-piece tool forming body integrally formed of a synthetic resin. An optical connector tool is provided.
According to a tenth aspect of the present invention, there is provided a first to an outer side of an optical connector including a clamp portion that clamps a pair of butt-connected optical fibers between the halved elements by elasticity of a spring to maintain a connection state between the optical fibers. An optical connector with a tool is provided, wherein any of the ninth optical connector tools is attached, and an insertion member of the optical connector tool is inserted between elements of the clamp portion.

本発明によれば、光コネクタ用工具に光コネクタを組み付けるに際して、光コネクタ用工具のコネクタホルダ部の一対のコネクタ保持片の間に光コネクタを保持し、押し込み補助片を、介挿部材駆動部の第2可動端部とは反対の側からコネクタホルダ部に押し当てるようにして一対のコネクタ保持片の間に架設し、コネクタカバー部を枠状に組み立てた状態で、押し込み補助片と介挿部材駆動部の第1可動端部とを互いに接近させるように圧縮力を作用させ、前記介挿部材駆動部を変形させる。これにより、光コネクタ用工具の介挿部材の先端部を、前記光コネクタのクランプ部の一対の素子間に割り込ませることができる。
このとき、光コネクタには、コネクタホルダ部のコネクタ保持片に設けられた支圧部によって、介挿部材とは反対側から、介挿部材に向かって押圧する押圧力が与えられる。コネクタ保持片に設けられている支圧部が光コネクタを押圧するので、直接手指で光コネクタを押す場合に比べて光コネクタを押しやすく、光コネクタのクランプ部の一対の素子間に介挿部材を割り込ませる作業の作業性を向上できる。
また、本発明によれば、光コネクタ用工具の押し込み補助片を、コネクタホルダ部の一対のコネクタ保持片の間への光コネクタの押し込み作業に用いることができる。このため、光コネクタの側面に直接手指で触れることなく押し込み作業を行え、押し込みの作業性を向上できる。
しかも、コネクタホルダ部の一対のコネクタ保持片間に架設した押し込み補助片は、コネクタホルダ部の一対のコネクタ保持片の間からの光コネクタの脱落を防止する機能も果たす。このため、コネクタホルダ部の一対のコネクタ保持片の間に光コネクタを収めた後、押し込み補助片を、コネクタホルダ部の一対のコネクタ保持片の間に架設状態にしておけば、押し込み補助片によってコネクタホルダ部からの光コネクタの脱落を防止したまま、光コネクタのクランプ部の一対の素子間に介挿部材を割り込ませる作業に移行でき、光コネクタのクランプ部の一対の素子間に介挿部材を割り込ませる作業を効率良く行える。
According to the present invention, when assembling the optical connector to the optical connector tool, the optical connector is held between the pair of connector holding pieces of the connector holder portion of the optical connector tool, and the pushing auxiliary piece is inserted into the insertion member driving portion. In the state where the connector cover portion is assembled in a frame shape so as to be pressed against the connector holder portion from the side opposite to the second movable end portion, the push-in auxiliary piece and the insertion piece are inserted. A compression force is applied so that the first movable end portion of the member driving portion approaches each other, and the insertion member driving portion is deformed. Thereby, the front-end | tip part of the insertion member of the tool for optical connectors can be made to interrupt between a pair of elements of the clamp part of the said optical connector.
At this time, the optical connector is provided with a pressing force that presses the optical connector toward the insertion member from the side opposite to the insertion member by the pressure supporting portion provided on the connector holding piece of the connector holder portion. Since the pressure bearing part provided on the connector holding piece presses the optical connector, it is easier to press the optical connector than when the optical connector is pressed directly with fingers, and the insertion member is between the pair of elements of the clamp part of the optical connector. The workability of the work that interrupts can be improved.
In addition, according to the present invention, the pushing auxiliary piece of the optical connector tool can be used for pushing the optical connector between the pair of connector holding pieces of the connector holder portion. For this reason, the pushing operation can be performed without directly touching the side surface of the optical connector with a finger, and the pushing workability can be improved.
In addition, the push-in auxiliary piece provided between the pair of connector holding pieces of the connector holder portion also functions to prevent the optical connector from falling off between the pair of connector holding pieces of the connector holder portion. For this reason, after the optical connector is housed between the pair of connector holding pieces of the connector holder portion, the pushing assisting piece is placed between the pair of connector holding pieces of the connector holder portion. While preventing the optical connector from falling off from the connector holder, it is possible to shift to the operation of inserting the insertion member between the pair of elements of the clamp part of the optical connector, and the insertion member between the pair of elements of the clamp part of the optical connector. The work that interrupts can be performed efficiently.

以下、本発明の一実施形態について、添付図面を参照しながら説明する。
図1は本発明の一実施形態による工具付き光コネクタ1及び光コネクタ用工具2を示す斜視図、図2は光コネクタ用工具2をコネクタホルダ部22側から見た斜視図、図3は光コネクタ用工具2を介挿部材駆動部23の第1可動端部241側から見た斜視図、図4(a)、(b)は光コネクタ用工具2を示す側面図、図5は工具付き光コネクタ1の光コネクタ3を断面視して示した図、図6は光コネクタ用工具2のコネクタホルダ部22のコネクタ収納溝22sに光コネクタ3を収納した状態(光コネクタ3のクランプ部32の一対の素子間に介挿部材21を割り込ませる前)を模式的に示す側断面図、図7は図1の工具付き光コネクタ1及び光コネクタ用工具2のコネクタホルダ部における光コネクタ3の収納状態(コネクタホルダ部のみ断面で図示)を示す図、図8は光コネクタ用工具2の2本の介挿部材21(21A、21B)と介挿部材駆動部23の介挿部材係合部との関係を示す側断面図、図9は光コネクタ用工具2の介挿部材21の構造を示す斜視図、図10(a)、(b)は介挿部材21の先端部の別態様を示す図、図11〜図15は工具付き光コネクタ1の介挿部材駆動部23の変形操作に伴う光コネクタ3のクランプ部32からの介挿部材21の引き抜きを説明する図である。
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
1 is a perspective view showing an optical connector 1 with a tool and an optical connector tool 2 according to an embodiment of the present invention, FIG. 2 is a perspective view of the optical connector tool 2 viewed from the connector holder portion 22 side, and FIG. The perspective view which looked at the tool 2 for connectors from the 1st movable end part 241 side of the insertion member drive part 23, FIG. 4 (a), (b) is a side view which shows the tool 2 for optical connectors, FIG. FIG. 6 is a cross-sectional view of the optical connector 3 of the optical connector 1, and FIG. 6 shows a state where the optical connector 3 is stored in the connector storage groove 22 s of the connector holder portion 22 of the optical connector tool 2 (the clamp portion 32 of the optical connector 3. FIG. 7 is a side cross-sectional view schematically showing before the insertion member 21 is interrupted between the pair of elements of FIG. 7, and FIG. 7 shows the optical connector 3 in the connector holder portion of the optical connector 1 with tool and the optical connector tool 2 in FIG. Storage state (connector holder only) 8 is a side sectional view showing the relationship between the two insertion members 21 (21A, 21B) of the optical connector tool 2 and the insertion member engaging portion of the insertion member driving portion 23. FIGS. 9 and 9 are perspective views showing the structure of the insertion member 21 of the optical connector tool 2, FIGS. 10A and 10B are views showing another embodiment of the distal end portion of the insertion member 21, and FIGS. 15 is a view for explaining extraction of the insertion member 21 from the clamp portion 32 of the optical connector 3 in accordance with the deformation operation of the insertion member driving portion 23 of the optical connector 1 with a tool.

図1、図7、図8に示すように、工具付き光コネクタ1は、光コネクタプラグである光コネクタ3の外側に光コネクタ用工具2を装着した構成のものである。
光コネクタ3としては、ここでは、ルーセントテクノロジー社が開発したものとして知られている所謂、LC形光コネクタを図面に例示している。
なお、光コネクタ3としては、LC形光コネクタに限定されず、単心あるいは多心の各種の光コネクタプラグを採用可能であり、例えば、SC2形光コネクタ等の光コネクタであっても良い。SC2形光コネクタとは、SC形光コネクタ(SC:Single fiber Coupling optical fiber connector。JIS C 5973に制定されるF04形光コネクタ(光コネクタプラグ)など)から、該SC形光コネクタのハウジングの外側に装着されるつまみを省略したものである。
但し、ここで用いる光コネクタ3(光コネクタプラグ)は、後述するクランプ部付きフェルールをハウジングに内蔵した構成の、現場付け光コネクタである。
As shown in FIGS. 1, 7, and 8, the optical connector 1 with a tool has a configuration in which an optical connector tool 2 is mounted on the outside of an optical connector 3 that is an optical connector plug.
Here, as the optical connector 3, a so-called LC type optical connector known as developed by Lucent Technology is illustrated in the drawings.
The optical connector 3 is not limited to the LC type optical connector, and various types of single-core or multi-core optical connector plugs can be employed. For example, an optical connector such as an SC2 type optical connector may be used. The SC2 type optical connector refers to an SC type optical connector (SC: Single fiber Coupling optical fiber connector; F04 type optical connector (optical connector plug) established in JIS C 5973), and the outside of the SC type optical connector housing. The knob attached to is omitted.
However, the optical connector 3 (optical connector plug) used here is an on-site optical connector having a structure in which a ferrule with a clamp portion described later is built in a housing.

まず、光コネクタ3について説明する。
図16、図17は光コネクタ3の構造を示す図であり、図16は分解斜視図、図17(a)は部分破断正面図、図17(b)は下面図(図17(a)において下側から見た図)である。
図示例において、この光コネクタ3は、スリーブ状のプラグフレーム33と、該プラグフレーム33の後端(図16紙面右奥側、図17(a)、(b)左側)に嵌合して取付けられるキャップ状のストップリング34とからなるハウジング39内に、クランプ部付きフェルール37と、スプリング35(コイルスプリング)とを収納した構造になっている。
クランプ部付きフェルール37は、フェルール31と、該フェルール31の接合端面(符号31a。先端面)に対向する後端側に組み立てられたクランプ部32とを具備してなるものであり、後で詳細を説明する。
First, the optical connector 3 will be described.
16 and 17 are views showing the structure of the optical connector 3. FIG. 16 is an exploded perspective view, FIG. 17A is a partially broken front view, and FIG. 17B is a bottom view (FIG. 17A). Figure viewed from the bottom).
In the illustrated example, the optical connector 3 is fitted and attached to a sleeve-like plug frame 33 and the rear end of the plug frame 33 (the right rear side in FIG. 16 and the left side in FIGS. 17A and 17B). A ferrule 37 with a clamp portion and a spring 35 (coil spring) are housed in a housing 39 including a cap-shaped stop ring 34 to be formed.
The ferrule 37 with a clamp part comprises a ferrule 31 and a clamp part 32 assembled on the rear end side facing the joining end face (reference numeral 31a, front end face) of the ferrule 31, and will be described in detail later. Will be explained.

プラグフレーム33は、全体がプラスチック製の一体成形品であり、スリーブ状のフレーム本体33aと、該フレーム本体33aの前端部(図17(a)、(b)右側)の側面から、フレーム本体33aの後端側に斜めに傾斜して立ち上げられた弾性片33bとを具備している。
ストップリング34は、全体がプラスチック製の一体成形品であり、スリーブ状のストップリング本体34aと、該ストップリング本体34aの側部から、当該ストップリング本体34aに嵌合されるプラグフレーム33(詳細にはフレーム本体33a)の側に斜めに傾斜して立ち上げられた弾性片34bとを具備している。
The plug frame 33 is an integrally molded product made entirely of plastic. From the side surface of the sleeve-shaped frame main body 33a and the front end of the frame main body 33a (the right side in FIGS. 17A and 17B), the frame main body 33a is provided. And an elastic piece 33b raised obliquely on the rear end side.
The stop ring 34 is an integrally molded product made entirely of plastic, and includes a sleeve-like stop ring main body 34a and a plug frame 33 (details) fitted to the stop ring main body 34a from the side of the stop ring main body 34a. Is provided with an elastic piece 34b that is inclined obliquely toward the frame body 33a).

ハウジング39は、フレーム本体33aの後端に、ストップリング本体34aを嵌め込んで(ここでは外嵌め)組み立てられるものであり、フレーム本体33aの後端にストップリング本体34aが組み付けられてなるスリーブ状(具体的には角筒状)のハウジング本体39aと、該ハウジング本体39aの側部のラッチ39bとを具備する。
ラッチ39bは、プラグフレーム33の弾性片33bと、ストップリング34の弾性片34bとによって構成される。ストップリング34の弾性片34bのストップリング34からの突出先端34c(前端)は、プラグフレーム33の弾性片33bのプラグフレーム33からの突出先端33c(後端)の、ハウジング本体39aとは反対の側に、重なり合うように配置される。ラッチ39bは、ストップリング34の弾性片34bを、ハウジング本体39aに接近させるように押圧して変形(弾性変形。図17(a)仮想線)させる(押し倒すようにする)ことで、ストップリング34の弾性片34bによって押圧されたプラグフレーム33の弾性片33bがハウジング本体39aに接近するように変形(弾性変形。図17(a)仮想線)されるようになっている。
プラグフレーム33の弾性片33bには、光コネクタ3を光コネクタアダプタ等の位置決めハウジング(光コネクタ3を別の光コネクタに対して接続可能に位置決めするハウジング)に挿入したときに、位置決めハウジングの側壁部の係合凹所に位置決めハウジング内側から係脱可能に係合して、光コネクタ3の位置決めハウジングからの引き抜きを規制する係止突起33b1(図1参照)が突設されている。ストップリング34の弾性片34bは、プラグフレーム33の弾性片33bをハウジング本体39aに接近するように変形(弾性変形。図17(a)仮想線)させて、位置決めハウジングの係合凹所に入り込んでいる係止突起33b1を係合凹所から抜き出して、位置決めハウジングに対する係合を解除するための係合解除用ラッチとして機能する。
The housing 39 is assembled by fitting the stop ring main body 34a to the rear end of the frame main body 33a (in this case, external fitting), and is formed in a sleeve shape in which the stop ring main body 34a is assembled to the rear end of the frame main body 33a. A housing main body 39a (specifically, a rectangular tube shape) and a latch 39b on the side of the housing main body 39a are provided.
The latch 39 b is configured by an elastic piece 33 b of the plug frame 33 and an elastic piece 34 b of the stop ring 34. The protruding tip 34c (front end) of the elastic piece 34b of the stop ring 34 from the stop ring 34 is opposite to the protruding tip 33c (rear end) of the elastic piece 33b of the plug frame 33 from the plug frame 33, opposite to the housing body 39a. It is arranged on the side so as to overlap. The latch 39b presses and deforms the elastic piece 34b of the stop ring 34 so as to approach the housing main body 39a (elastic deformation, phantom line in FIG. 17 (a)). The elastic piece 33b of the plug frame 33 pressed by the elastic piece 34b is deformed so as to approach the housing main body 39a (elastic deformation, phantom line in FIG. 17A).
The elastic piece 33b of the plug frame 33 has a side wall of the positioning housing when the optical connector 3 is inserted into a positioning housing such as an optical connector adapter (a housing that positions the optical connector 3 so as to be connectable to another optical connector). A locking projection 33b1 (see FIG. 1) is provided to project into the engaging recess of the portion so as to be detachably engageable from the inside of the positioning housing and restrict the pulling of the optical connector 3 from the positioning housing. The elastic piece 34b of the stop ring 34 is deformed (elastically deformed; phantom line in FIG. 17A) so that the elastic piece 33b of the plug frame 33 approaches the housing body 39a, and enters the engagement recess of the positioning housing. The latching projection 33b1 is extracted from the engaging recess and functions as an engagement release latch for releasing the engagement with the positioning housing.

ハウジング39は、プラグフレーム33のフレーム本体33aの後端に、ストップリング34のストップリング本体34aを嵌め込んで(ここでは外嵌め)、フレーム本体33aの後端部の両側に突設されている係止爪33d(弾性爪)を、ストップリング本体34aの係止窓34dに入り込ませることで、プラグフレーム33の後端にストップリング34が係止される結果、プラグフレーム33とストップリング34とが一体化されて組み立てられる。
クランプ部付きフェルール37はプラグフレーム33のフレーム本体33aにその後端の開口部から挿入できる。スプリング35は、ストップリング34のストップリング本体34aの、プラグフレーム33のフレーム本体33aに嵌合される前端側開口部から挿入できる。
クランプ部付きフェルール37、スプリング35は、プラグフレーム33とストップリング34とを一体化してハウジング39を組み立てる際に、ハウジング39内に収納されるようにする。
スプリング35は、例えば、光コネクタ3を光コネクタアダプタ等に挿入して別の光コネクタと接続する時に、フェルール31に、接続の相手側の光コネクタとの間の突き合わせ力を与える機能を果たす。
The housing 39 has a stop ring main body 34a of the stop ring 34 fitted into a rear end of the frame main body 33a of the plug frame 33 (in this case, an external fit), and protrudes on both sides of the rear end of the frame main body 33a. By engaging the locking claw 33d (elastic claw) into the locking window 34d of the stop ring body 34a, the stop ring 34 is locked to the rear end of the plug frame 33. As a result, the plug frame 33, the stop ring 34, Are assembled and assembled.
The ferrule 37 with a clamp portion can be inserted into the frame body 33a of the plug frame 33 from the opening at the rear end. The spring 35 can be inserted from the opening on the front end side of the stop ring body 34 a of the stop ring 34 that is fitted to the frame body 33 a of the plug frame 33.
The ferrule 37 with a clamp part and the spring 35 are accommodated in the housing 39 when the plug frame 33 and the stop ring 34 are integrated to assemble the housing 39.
For example, when the optical connector 3 is inserted into an optical connector adapter or the like and connected to another optical connector, the spring 35 functions to give the ferrule 31 a butting force with the optical connector on the other side of the connection.

プラグフレーム33とストップリング34とを一体化して、クランプ部付きフェルール37、スプリング35を収納したハウジング39を組み立てると、光コネクタ3が組み立てられる。
クランプ部付きフェルール37は、ストップリング34に内装されてクランプ部付きフェルール37の後端側に配置されたスプリング35によって、ハウジング39の前端側に向けて付勢される。図17(a)、(b)において、符号34eは、スプリング35の抜け止め用のスプリング受け壁であり、ストップリング34の後端内面に突設されている。スプリング受け壁34eは、ストップリング34後端に開口されている光ファイバ挿入孔34fを取り囲むように、ストップリング34の後端内面に周設されたリブ状の小突起である。
但し、クランプ部付きフェルール37は、プラグフレーム33(詳細にはフレーム本体33a)の前端部内面に突設されているリブ状のストッパ突壁33eに、フェルール31後端部に突設されているフランジ部31bがプラグフレーム33後端側から当接することで、プラグフレーム33の前端側に抜け出さないように抜け止めされる。クランプ部付きフェルール37のフェルール31は、フレーム本体33a内面に周設されているストッパ突壁33eの内側のフェルール穴33fから、ハウジング39の前端側(プラグフレーム33の前端側)に突出されている。
ハウジング39内に収納されたクランプ部付きフェルール37は、ハウジング39の軸方向に沿って若干の移動が可能であり、スプリング35を押し縮めるようにして、ハウジング39後端側(図17(a)、(b)左側)に押し込むことができる。
When the plug frame 33 and the stop ring 34 are integrated, and the housing 39 containing the ferrule 37 with a clamp part and the spring 35 is assembled, the optical connector 3 is assembled.
The ferrule 37 with a clamp portion is urged toward the front end side of the housing 39 by a spring 35 that is housed in the stop ring 34 and disposed on the rear end side of the ferrule 37 with a clamp portion. In FIGS. 17A and 17B, reference numeral 34e denotes a spring receiving wall for preventing the spring 35 from coming off, and protrudes from the inner surface of the rear end of the stop ring 34. The spring receiving wall 34e is a rib-shaped small protrusion that is provided around the inner surface of the rear end of the stop ring 34 so as to surround the optical fiber insertion hole 34f that is opened at the rear end of the stop ring 34.
However, the ferrule 37 with a clamp portion projects from the rear end portion of the ferrule 31 on a rib-like stopper projecting wall 33e projecting from the inner surface of the front end portion of the plug frame 33 (specifically, the frame body 33a). When the flange portion 31 b comes into contact with the rear end side of the plug frame 33, the flange portion 31 b is prevented from coming off from the front end side of the plug frame 33. The ferrule 31 of the ferrule 37 with a clamp part protrudes to the front end side of the housing 39 (front end side of the plug frame 33) from the ferrule hole 33f inside the stopper protruding wall 33e provided around the inner surface of the frame main body 33a. .
The ferrule 37 with a clamp portion housed in the housing 39 can move slightly along the axial direction of the housing 39, and the rear end side of the housing 39 (FIG. 17 (a)) so as to compress the spring 35. , (B) left side).

なお、図17(a)、(b)中、符号39cは、光コネクタ用工具2の介挿部材21(図2、図5、図8等参照)を差し込む差込口を示す。この差込口39cは、光コネクタ3のハウジング39のハウジング本体39aの、ラッチ39bとは反対の側(下面側)の側壁に、ハウジング本体39aの軸方向(換言すれば長手方向)に沿って延在する長穴状に形成されている。
符号36は、ストップリング34の後端に装着されるブーツを示す。但し、ブーツ36は、光コネクタ3の後端側(図17(a)、(b)左側)からクランプ部32に光ファイバ4を挿入する際に、光ファイバ4に予め通しておき、クランプ部32への光ファイバ4の挿入完了後にストップリング34に装着される。
In FIGS. 17A and 17B, reference numeral 39c denotes an insertion port into which the insertion member 21 (see FIGS. 2, 5, 8, etc.) of the optical connector tool 2 is inserted. The insertion port 39c is formed on the side wall (the lower surface side) of the housing main body 39a of the housing 39 of the optical connector 3 opposite to the latch 39b, along the axial direction (in other words, the longitudinal direction) of the housing main body 39a. It is formed in an elongated slot shape.
Reference numeral 36 denotes a boot attached to the rear end of the stop ring 34. However, the boot 36 is passed through the optical fiber 4 in advance when the optical fiber 4 is inserted into the clamp portion 32 from the rear end side of the optical connector 3 (the left side in FIGS. 17A and 17B). The optical fiber 4 is inserted into the stop ring 34 after the optical fiber 4 is inserted into the stop ring 34.

図18は、クランプ部付きフェルール37を示す斜視図、図19は、クランプ部付きフェルール37のクランプ部32を構成する2つの蓋側素子321a、321b、及び、ベース側素子(延出部31c)の、合わせ面を示す図、図20はクランプ部付きフェルール37の構造を示す断面図、である。
図18〜図20に示すように、クランプ部付きフェルール37のクランプ部32は、フェルール31のフランジ部31bから光コネクタ3の後端側へ向かって延びる延出部31cに複数の部材を組み付けた構成になっている。
FIG. 18 is a perspective view showing a ferrule 37 with a clamp part, and FIG. 19 shows two lid side elements 321a and 321b and a base side element (extension part 31c) constituting the clamp part 32 of the ferrule 37 with a clamp part. FIG. 20 is a sectional view showing a structure of a ferrule 37 with a clamp portion.
As shown in FIGS. 18-20, the clamp part 32 of the ferrule 37 with a clamp part assembled | attached the several member to the extension part 31c extended toward the rear end side of the optical connector 3 from the flange part 31b of the ferrule 31. As shown in FIG. It is configured.

クランプ部32は、フェルール31のフランジ部31bから延びる延出部31cと、この延出部31cの合わせ面324a上に配置された蓋側素子321a、321bとを、断面C形のスリーブ状のバネ322(C形バネ)の内側に収容した構造になっている。延出部31cは、クランプ部32を構成する半割りの素子の一方(以下、素子31cと称する場合もある)、二つの蓋側素子321a、321bは、クランプ部32を構成する半割りの素子の他方(素子321)を構成している。クランプ部32は、一対の半割り素子31a、321の間で、光ファイバをクランプする構造になっている。二つの蓋側素子321a、321bは、一方(素子321a)が他方(素子321b)よりもフェルール31側となるようにして、光コネクタ3の前後方向(図17左右)に配列されている。バネ322は、該バネ322の軸方向中央部に形成されたスリット322aによって2分されている。前記スリット322aは、二つの蓋側素子321a、321bの間の境界付近に位置合わせされているため、バネ322のスリット322aを介して軸方向両側の各部分は、該バネ322の弾性を二つの蓋側素子321a、321bに別個に作用させる独立したバネとして機能するようになっている。然るに、一方の蓋側素子321aと延出部31cの組、他方の蓋側素子321bと延出部31cの組は、それぞれ、独立のクランプ部としても機能し得る。
なお、バネ322の形状は、断面コ字形のものなど、各種採用可能である。
The clamp portion 32 includes an extension portion 31c extending from the flange portion 31b of the ferrule 31, and lid-side elements 321a and 321b disposed on the mating surface 324a of the extension portion 31c, and a sleeve-like spring having a C-shaped cross section. The structure is housed inside 322 (C-shaped spring). The extension part 31c is one of the half-divided elements constituting the clamp part 32 (hereinafter also referred to as element 31c), and the two lid-side elements 321a and 321b are the half-divided elements constituting the clamp part 32 The other (element 321). The clamp part 32 has a structure for clamping the optical fiber between the pair of halves 31a and 321. The two lid-side elements 321a and 321b are arranged in the front-rear direction (left and right in FIG. 17) of the optical connector 3 so that one (element 321a) is closer to the ferrule 31 than the other (element 321b). The spring 322 is divided into two by a slit 322a formed at the axial center of the spring 322. Since the slit 322a is positioned near the boundary between the two lid-side elements 321a and 321b, each part on both sides in the axial direction via the slit 322a of the spring 322 makes the elasticity of the spring 322 two. It functions as an independent spring that acts separately on the lid-side elements 321a and 321b. However, the set of one lid-side element 321a and the extending portion 31c and the set of the other lid-side element 321b and the extending portion 31c can also function as independent clamp portions.
The spring 322 may have various shapes such as a U-shaped cross section.

フェルール31には、光ファイバ38(ここでは裸光ファイバ。以下、フェルール側光ファイバとも言う)が内挿固定されている。このフェルール側光ファイバ38は、フェルール31後端から突出されている。このフェルール側光ファイバ38のフェルール後端から突出された部分である突出部38aは、クランプ部32の一対の素子31c、321の間に挿入されており、クランプ部32の一対の素子31c、321の一方又は両方の合わせ面(ここでは、素子31cの合わせ面324aのみ)に形成されている調心溝323に収納されて精密に位置決め調心される。   An optical fiber 38 (here, a bare optical fiber, hereinafter also referred to as a ferrule side optical fiber) is inserted and fixed to the ferrule 31. The ferrule side optical fiber 38 protrudes from the rear end of the ferrule 31. A protruding portion 38 a that is a portion protruding from the rear end of the ferrule of the ferrule side optical fiber 38 is inserted between the pair of elements 31 c and 321 of the clamp portion 32, and the pair of elements 31 c and 321 of the clamp portion 32. Are accommodated in alignment grooves 323 formed in one or both of the alignment surfaces (here, only the alignment surface 324a of the element 31c) and precisely aligned.

また、クランプ部32には、該クランプ部32の後端部から一対の素子31c、321の間に挿入される光ファイバ4(ここでは、一例として単心の光ファイバ心線)の先端を調心溝323に導く溝325a、325bが形成されている。前記溝325a、325bは、調心溝323よりもクランプ部32の後端側にずれた位置にて、クランプ部32の一対の素子31c、321の一方又は両方の合わせ面に形成されている。この溝325a、325bは、クランプ部32の後端部に開口する開口部325cを有し、この開口部325cから、フェルール31に向かって延在するように形成されている。
この溝325a、325bのフェルール31側の端部は、調心溝323と連通されている。図示例の光コネクタ3では、溝325a、325bは、素子31cの合わせ面324aと、素子321bの合わせ面324bの両方(図19等参照)に形成されている。この溝325a、325bは、一対の素子31c、321の間で丁度対面する位置(具体的には、素子31cと素子321bの丁度対面する位置)に形成されている。
Also, the tip of the optical fiber 4 (here, a single-core optical fiber as an example) inserted between the pair of elements 31c and 321 from the rear end of the clamp 32 is adjusted to the clamp 32. Grooves 325a and 325b leading to the center groove 323 are formed. The grooves 325a and 325b are formed on one or both mating surfaces of the pair of elements 31c and 321 of the clamp part 32 at a position shifted from the alignment groove 323 toward the rear end side of the clamp part 32. The grooves 325 a and 325 b have an opening 325 c that opens at the rear end of the clamp portion 32, and are formed to extend toward the ferrule 31 from the opening 325 c.
The ends of the grooves 325 a and 325 b on the ferrule 31 side are communicated with the aligning groove 323. In the illustrated optical connector 3, the grooves 325a and 325b are formed on both the mating surface 324a of the element 31c and the mating surface 324b of the element 321b (see FIG. 19 and the like). The grooves 325a and 325b are formed at positions where the pair of elements 31c and 321 just face each other (specifically, positions where the elements 31c and 321b just face each other).

図5に示すように、クランプ部32は、光コネクタ用工具2の介挿部材21を素子31c、321間に割り込ませて、バネ322の弾性に抗してクランプ部32の一対の素子31c、321間を押し広げておくことで、光ファイバ4の裸光ファイバ4a(図18参照)が露出されている先端を、ストップリング34の後端部の開口部である光ファイバ挿入孔34f(図17(a)、(b)参照)から、クランプ部32の後端部に開口する開口部325c(溝325a、325bの開口部)に挿入することができる。光ファイバ4は、フェルール31側への押し込みによって、クランプ部32の後端部の開口部325cから溝325a、325bに押し込まれ、さらなる押し込みによって、光ファイバ4先端の裸光ファイバ4aを、溝325a、325bから調心溝323に押し込んで、フェルール側光ファイバ38と突き合わせ接続することができる。フェルール側光ファイバ38は、調心溝323のフェルール31側の端部から長手方向中央部までの範囲に収納されており、光ファイバ4先端の裸光ファイバ4aは、調心溝323に挿入されることで、調心溝323の調心精度によって精密に位置決め調心した状態で、フェルール側光ファイバ38(詳細には突出部38aの先端)に対して突き合わせ接続させることができる。
なお、光ファイバ4は、裸光ファイバ4aの口出し長の設定によって、裸光ファイバ4aが調心溝323内でフェルール側光ファイバ38に突き当てられた際に、溝325a、325bのほぼ全長にわたって被覆部分が収納されるようにしておく。
As shown in FIG. 5, the clamp part 32 interrupts the insertion member 21 of the optical connector tool 2 between the elements 31 c and 321, and resists the elasticity of the spring 322, so that the pair of elements 31 c of the clamp part 32. The optical fiber insertion hole 34f (see FIG. 18), which is an opening at the rear end of the stop ring 34, is formed by pushing the gap between the optical fibers 321 so that the bare optical fiber 4a (see FIG. 18) of the optical fiber 4 is exposed. 17 (a) and (b)) can be inserted into the opening 325c (openings of the grooves 325a and 325b) opened at the rear end of the clamp 32. The optical fiber 4 is pushed into the grooves 325a and 325b from the opening 325c at the rear end of the clamp portion 32 by pushing toward the ferrule 31, and the bare optical fiber 4a at the tip of the optical fiber 4 is pushed into the groove 325a by further pushing. The ferrule side optical fiber 38 can be butt-connected by being pushed into the alignment groove 323 from 325b. The ferrule side optical fiber 38 is accommodated in a range from the end of the aligning groove 323 on the ferrule 31 side to the center in the longitudinal direction, and the bare optical fiber 4a at the tip of the optical fiber 4 is inserted into the aligning groove 323. Thus, the ferrule-side optical fiber 38 (specifically, the tip of the protruding portion 38a) can be butt-connected in a state where the positioning is precisely aligned by the alignment accuracy of the alignment groove 323.
Note that the optical fiber 4 extends over almost the entire length of the grooves 325a and 325b when the bare optical fiber 4a is abutted against the ferrule side optical fiber 38 in the alignment groove 323 by setting the lead length of the bare optical fiber 4a. The covering portion is stored.

また、図5中、符号326は、一対の素子31c、321からなる半割りロッド状の素子部327の側面に開口された介挿部材挿入口である。
介挿部材挿入口326は、素子部327の側面から窪んだ形状の凹所であり、一対の素子31c、321の合わせ目に位置し、一対の素子31c、321間に介挿部材21を割り込ませる作業を容易にするものである。
Further, in FIG. 5, reference numeral 326 denotes an insertion member insertion opening opened on the side surface of the half rod-shaped element portion 327 including the pair of elements 31 c and 321.
The insertion member insertion port 326 is a recess that is recessed from the side surface of the element portion 327, is located at the joint of the pair of elements 31 c and 321, and inserts the insertion member 21 between the pair of elements 31 c and 321. It makes it easy to work.

光ファイバ4先端の裸光ファイバ4aとフェルール側光ファイバ38との突き合わせ状態を保ったまま、素子31c、321間に介挿されている介挿部材21を素子31c、321間から引き抜くと、バネ322の弾性によって素子31c、321間が閉じられ、一対の素子31c、321間に、フェルール側光ファイバ38と光ファイバ4とがクランプ固定される。これにより、光ファイバ4先端の裸光ファイバ4aとフェルール側光ファイバ38との突き合わせ状態が維持される。また、光ファイバ4の被覆部分が溝325a、325b内にクランプ固定され、クランプ部32からの光ファイバ4の引き抜きが規制される。
溝325a、325bは、光ファイバ4の被覆部分を収納し、かつ、バネ322の弾性(クランプ力)によってクランプ固定するための被覆収納溝を構成する。
When the insertion member 21 inserted between the elements 31c and 321 is pulled out between the elements 31c and 321 while keeping the butted state of the bare optical fiber 4a at the tip of the optical fiber 4 and the ferrule side optical fiber 38, the spring The elements 31c and 321 are closed by the elasticity of 322, and the ferrule side optical fiber 38 and the optical fiber 4 are clamped and fixed between the pair of elements 31c and 321. Thereby, the butt | matching state of the bare optical fiber 4a of the optical fiber 4 front-end | tip and the ferrule side optical fiber 38 is maintained. Further, the coated portion of the optical fiber 4 is clamped and fixed in the grooves 325a and 325b, and the extraction of the optical fiber 4 from the clamp portion 32 is restricted.
The grooves 325 a and 325 b constitute a covering housing groove for storing the covering portion of the optical fiber 4 and clamping by the elasticity (clamping force) of the spring 322.

なお、光ファイバ38(フェルール側光ファイバ)としては、例えば石英系光ファイバが採用される。
また、光コネクタ3の後端側からクランプ部32の素子間に挿入する光ファイバ(別の光ファイバ。一例として、単心の光ファイバ心線である上述の光ファイバ4)としては、光ファイバ心線に限定されず、例えば光ファイバ素線、光ファイバコード等も採用可能である。この別の光ファイバ(詳細には裸光ファイバ4a)としては、例えば石英系光ファイバが採用される。
前記調心溝は、ここではV溝(図5参照)であるが、例えば、U溝、丸溝(断面半円形の溝)等、各種構成が採用可能である。
As the optical fiber 38 (ferrule side optical fiber), for example, a quartz optical fiber is adopted.
An optical fiber (another optical fiber, for example, the above-described optical fiber 4 that is a single-core optical fiber) inserted from the rear end side of the optical connector 3 between the elements of the clamp portion 32 is an optical fiber. For example, an optical fiber, an optical fiber cord, or the like can be used. As this other optical fiber (specifically, the bare optical fiber 4a), for example, a quartz optical fiber is employed.
Here, the alignment groove is a V-groove (see FIG. 5), but various configurations such as a U-groove and a round groove (groove having a semicircular cross section) can be employed.

次に、光コネクタ用工具2を説明する。
図1〜図7に示すように、光コネクタ用工具2は、光コネクタ3のクランプ部32の素子31c、321間に介挿される先端部21aを有する介挿部材21と、素子31c、321間に割り込ませた介挿部材21をクランプ部32から引き抜くリング状の介挿部材駆動部23と、介挿部材駆動部23の周方向の一部に形成されたコネクタホルダ部22及びコネクタカバー部29とを備えている。
なお、以下の説明で、光コネクタ用工具2において、光コネクタ用工具2に組み付けた光コネクタ3の先端側(フェルール31の接合端面31a側)、すなわち、図1、図2の紙面右手前側、図3右奥側、図7、図8の右側を、「前」、反対側を「後」として説明することがある。また、図4(a)、(b)の左右、図5の左右を、「左右」として説明する場合がある。
Next, the optical connector tool 2 will be described.
As shown in FIGS. 1 to 7, the optical connector tool 2 includes an insertion member 21 having a tip 21 a inserted between the elements 31 c and 321 of the clamp part 32 of the optical connector 3, and the elements 31 c and 321. A ring-shaped insertion member drive unit 23 that pulls out the insertion member 21 that has been inserted into the clamp portion 32, and a connector holder unit 22 and a connector cover unit 29 that are formed in a part of the circumferential direction of the insertion member drive unit 23. And.
In the following description, in the optical connector tool 2, the tip side of the optical connector 3 assembled to the optical connector tool 2 (on the joining end surface 31 a side of the ferrule 31), that is, the right front side of FIG. 1 and FIG. The right rear side of FIG. 3 and the right side of FIGS. 7 and 8 may be described as “front” and the opposite side as “rear”. In addition, the left and right in FIGS. 4A and 4B and the left and right in FIG. 5 may be described as “left and right”.

図8、図9に示すように、介挿部材21は、ブロック状の中間ストッパブロック211と、この中間ストッパブロック211に突設された板状突起212と、中間ストッパブロック211から前記板状突起212とは反対の側に突設された一対の弾性爪213とを具備している。
板状突起212の中間ストッパブロック211からの突出先端(介挿部材21の先端)は、光コネクタ3のクランプ部32の一対の素子31c、321の間に割り込ませる先端部21a(挿入先端)となっている。
図示例の介挿部材21では、先端部21a(挿入先端)は、板状突起212に比べて厚さを薄く形成された楔状になっている。図5、図9に例示した先端部21aは、断面三角形状であるが鋭く尖った形状ではなく、先端の頂点付近は、湾曲面を有する形状(素子を傷めにくくすることが目的)になっている。
また、図示例の介挿部材21は、先端部21aも含めて全体が合成樹脂製の一体成形品であり、先端部21aが樹脂製であることも、クランプ部32の一対の素子31c、321を傷めにくくする点で有利である。
As shown in FIGS. 8 and 9, the insertion member 21 includes a block-shaped intermediate stopper block 211, a plate-like protrusion 212 protruding from the intermediate stopper block 211, and the plate-like protrusion from the intermediate stopper block 211. A pair of elastic claws 213 projecting on the side opposite to 212 is provided.
A protruding tip (tip of the insertion member 21) of the plate-like protrusion 212 from the intermediate stopper block 211 is connected to a tip 21a (insertion tip) that is inserted between the pair of elements 31c and 321 of the clamp part 32 of the optical connector 3. It has become.
In the insertion member 21 in the illustrated example, the distal end portion 21 a (insertion distal end) has a wedge shape formed to be thinner than the plate-like protrusion 212. The tip portion 21a illustrated in FIG. 5 and FIG. 9 has a triangular cross section, but not a sharp pointed shape, and has a shape having a curved surface near the apex of the tip (for the purpose of making the element difficult to damage). Yes.
In addition, the insertion member 21 in the illustrated example is an integrally molded product made of synthetic resin, including the distal end portion 21a, and the distal end portion 21a is made of resin. The pair of elements 31c and 321 of the clamp portion 32 is also illustrated. This is advantageous in that it is difficult to damage.

楔状の先端部21aとしては、例えば、図10(a)、(b)に例示するように、先端が鋭く尖った形状のもの(先端部21a1、21a2)であっても良い。
また、先端部21aの形状は図示例のものに限定されない。
介挿部材21の先端部21aは、例えば、単純な板状、ピン状等、他の形状であってもよい。
As the wedge-shaped tip portion 21a, for example, as shown in FIG. 10A and FIG.
Further, the shape of the tip portion 21a is not limited to the illustrated example.
The distal end portion 21a of the insertion member 21 may have another shape such as a simple plate shape or a pin shape.

図8に示すように、一対の弾性爪213は、介挿部材21の基端部21bとして機能し、介挿部材駆動部23の第1可動端部241に取り付けられる。
具体的には、弾性爪213は、中間ストッパブロック211から延出する細長弾性片213aと、この細長弾性片213aの中間ストッパブロック211からの突出方向先端部の側部に突設されている突起状の係合受け部213b(爪部)とで構成されている。各弾性爪213の係合受け部213bは、細長弾性片213aにおいて、中間ストッパブロック211から延びる一対の弾性爪213の間に確保された隙間213cとは反対の側の側部に突設されている。
As shown in FIG. 8, the pair of elastic claws 213 function as the base end portion 21 b of the insertion member 21 and are attached to the first movable end portion 241 of the insertion member drive portion 23.
Specifically, the elastic claw 213 includes a long elastic piece 213a extending from the intermediate stopper block 211 and a protrusion protruding from the side of the front end portion of the thin elastic piece 213a in the protruding direction from the intermediate stopper block 211. It is comprised with the shape engagement receiving part 213b (claw part). The engagement receiving portion 213b of each elastic claw 213 protrudes from the side of the elongated elastic piece 213a opposite to the gap 213c secured between the pair of elastic claws 213 extending from the intermediate stopper block 211. Yes.

図8、図9に示すように、介挿部材21は、第1可動端部241に取り付けられ、この第1可動端部241から、リング状の介挿部材駆動部23の内部空間Sを介して前記第1可動端部241と対向する第2可動端部242に向けて突出するように設けられている。
介挿部材21は、具体的には、第1可動端部241から介挿部材駆動部23の内部空間S側に突出された介挿部材係合部243に穿設されている基端部収納穴244に、一対の弾性爪213からなる基端部21bが収納される。そして、基端部収納穴244に収納された一対の弾性爪213と介挿部材係合部243との係合によって、介挿部材係合部243から第2可動端部242側への引き抜きを規制して、第1可動端部241に取り付けられている。
なお、介挿部材係合部243は、樹脂成形によって、第1可動端部241のプレート状のベース壁部241aから突出する形状に形成されたブロック状の突起であり、第1可動端部241の一部である。
As shown in FIGS. 8 and 9, the insertion member 21 is attached to the first movable end 241, and from the first movable end 241 through the internal space S of the ring-shaped insertion member drive unit 23. And projecting toward the second movable end 242 opposite to the first movable end 241.
Specifically, the insertion member 21 is housed in a proximal end portion that is formed in the insertion member engaging portion 243 that protrudes from the first movable end portion 241 to the internal space S side of the insertion member driving portion 23. In the hole 244, the base end portion 21b including the pair of elastic claws 213 is accommodated. The pair of elastic claws 213 accommodated in the base end portion accommodation hole 244 and the insertion member engagement portion 243 are engaged to pull out the insertion member engagement portion 243 from the second movable end portion 242 side. The first movable end 241 is attached in a restricted manner.
The insertion member engaging portion 243 is a block-like protrusion formed in a shape protruding from the plate-like base wall portion 241a of the first movable end portion 241 by resin molding, and the first movable end portion 241. Is part of.

介挿部材21は、第1可動端部241からプレート状の前記第2可動端部242に向かって、介挿部材駆動部23の内部空間Sを横切るように延在して、前記第2可動端部242に形成されているスリット状の介挿部材用窓28に貫通され、前記第2可動端部242から前記介挿部材駆動部23の外側に突出されている。
介挿部材21の先端部21aは、コネクタホルダ部22の一対のコネクタ保持片22b、22cのコネクタ収納用凹所22a内に収納して、一対のコネクタ保持片22b、22cの間に保持された光コネクタ3の前記素子31c、321間に割り込ませることができる。
介挿部材21は、介挿部材駆動部23に複数本(ここでは2本)設けられている。
各介挿部材21(21A、21B)の介挿部材駆動部23における設置位置は、リング状の介挿部材駆動部23の軸線方向(前後方向)にずらされている。
The insertion member 21 extends from the first movable end portion 241 toward the plate-like second movable end portion 242 so as to cross the internal space S of the insertion member driving portion 23, and the second movable portion It penetrates through a slit-shaped insertion member window 28 formed in the end portion 242 and protrudes from the second movable end portion 242 to the outside of the insertion member driving portion 23.
The distal end portion 21a of the insertion member 21 is housed in the connector housing recess 22a of the pair of connector holding pieces 22b and 22c of the connector holder portion 22, and is held between the pair of connector holding pieces 22b and 22c. An interruption can be made between the elements 31 c and 321 of the optical connector 3.
A plurality (two in this case) of insertion members 21 are provided in the insertion member drive unit 23.
The installation positions of the insertion members 21 (21A, 21B) in the insertion member driving unit 23 are shifted in the axial direction (front-rear direction) of the ring-shaped insertion member driving unit 23.

この光コネクタ用工具2は、リング状の介挿部材駆動部23と、前記コネクタホルダ部22と、コネクタカバー部29とを、合成樹脂によって一体成形した1部品の工具成形本体2Aを具備している。
但し、本発明に係る光コネクタ用工具としては、必ずしも、工具成形本体2Aを具備する構成に限定されない。例えば、リング状の介挿部材駆動部23として、複数のプレート部を、枢着用ピンを介して連結した構成のものを採用したり、樹脂一体成形品の介挿部材駆動部23に、該介挿部材駆動部23とは別部材のコネクタホルダ部22、コネクタカバー部29を、嵌合あるいは係合によって組み付けた構成など、様々な構成が採用可能である。
The optical connector tool 2 includes a one-piece tool forming body 2A in which a ring-shaped insertion member driving portion 23, the connector holder portion 22, and a connector cover portion 29 are integrally formed of synthetic resin. Yes.
However, the optical connector tool according to the present invention is not necessarily limited to the configuration including the tool forming main body 2A. For example, as the ring-shaped insertion member drive unit 23, a structure in which a plurality of plate portions are connected via a pivot pin is used, or the insertion member drive unit 23 of a resin-integrated molded product is connected to the insertion member drive unit 23. Various configurations such as a configuration in which the connector holder portion 22 and the connector cover portion 29 which are members different from the insertion member driving portion 23 are assembled by fitting or engagement can be employed.

図1、図2に示すように、介挿部材駆動部23は、スリーブ状に形成されている。
介挿部材駆動部23は、具体的には、第1可動端部241と、内部空間Sを介して第1可動端部241の反対側に設けられた第2可動端部242と、これら可動端部241、242を連結する一対の側壁部25a、25b(以下、連結壁部)と、を有して構成されている。
As shown in FIGS. 1 and 2, the insertion member driving unit 23 is formed in a sleeve shape.
Specifically, the insertion member drive unit 23 includes a first movable end 241, a second movable end 242 provided on the opposite side of the first movable end 241 via the internal space S, and these movable It has a pair of side wall portions 25a and 25b (hereinafter referred to as connecting wall portions) for connecting the end portions 241 and 242.

第2可動端部242は、プレート状に形成され、介挿部材駆動部23の中心軸線に沿って延在するスリット状の介挿部材用窓28によって2分された構造を有する。すなわち、第2可動端部242は、一対の板状の可動端部分割体242aと、これらの間を橋絡する橋絡部242b(図8、図15等参照)とを備えている。
橋絡部242bは、第2可動端部242の、介挿部材駆動部23の中心軸線に沿った方向の中央部に形成されている。
橋絡部242bは、第2可動端部242の一部であり、この橋絡部242bも、樹脂一体成形品である工具成形本体2Aの一部である。第2可動端部242は、換言すれば、介挿部材用窓28を介して両側の一対の板状の可動端部分割体242aが、介挿部材用窓28を形成していない、残りの部分である橋絡部242bを介して繋がった構造になっているものである。
The second movable end portion 242 is formed in a plate shape and has a structure divided into two by a slit-shaped insertion member window 28 extending along the central axis of the insertion member driving portion 23. That is, the second movable end portion 242 includes a pair of plate-like movable end portion divided bodies 242a and a bridging portion 242b (see FIG. 8, FIG. 15 and the like) that bridges them.
The bridging portion 242b is formed at the center of the second movable end 242 in the direction along the central axis of the insertion member driving portion 23.
The bridging part 242b is a part of the second movable end part 242, and the bridging part 242b is also a part of the tool forming main body 2A that is a resin integrated molded product. In other words, the second movable end portion 242 has a pair of plate-like movable end portion split bodies 242a on both sides via the insertion member window 28, and the remaining movable portion window 242a does not form the insertion member window 28. It is the structure connected via the bridge part 242b which is a part.

図示例の光コネクタ用工具2にあっては、橋絡部242bは、一対の板状の可動端部分割体242a同士を橋絡する細い梁状に形成されている。
この橋絡部242bは、介挿部材駆動部23を左右両側からの側圧によって変形させたときに、曲げ変形されるようになっていれば良く、細い梁状に限定されず、例えば薄板状など、様々な形状を採用できる。
In the optical connector tool 2 of the illustrated example, the bridging portion 242b is formed in a thin beam shape that bridges a pair of plate-like movable end divided bodies 242a.
The bridging portion 242b only needs to be bent when the insertion member driving portion 23 is deformed by the lateral pressure from the left and right sides, and is not limited to a thin beam shape. For example, a thin plate shape or the like Various shapes can be adopted.

図4(a)、(b)等に示すように、各連結壁部25a、25bは、具体的には、3つの連結プレート部26a〜26cを一列に連設した構造になっている。隣り合う連結プレートの間は、ヒンジ部27を介して繋がっている。
一対の連結壁部25a、25bは、第1可動端部241のプレート状のベース壁部241aの両側から延出されており、第1可動端部241からの延出先端に、それぞれ、第2可動端部242の一対の可動端部分割体242aが形成されている。
各連結壁部25a、25bの一端部に位置する連結プレート部26aと第1可動端部241との間、及び、各連結壁部25a、25bの他端部に位置する連結プレート部26cと第2可動端部242との間も、ヒンジ部27で連結されている。
介挿部材駆動部23は、各連結壁部25a、25bを構成する合計6つの連結プレート部と、第1可動端部241と、スリット状の介挿部材用窓28によって2分された構造(但し、橋絡部242bによって連結されている)のプレート状の第2可動端部242とによって、8角形状に構成されている。
As shown in FIGS. 4A, 4B, etc., each of the connecting wall portions 25a, 25b specifically has a structure in which three connecting plate portions 26a-26c are arranged in a row. Adjacent connecting plates are connected via a hinge portion 27.
The pair of connecting wall portions 25a and 25b extend from both sides of the plate-like base wall portion 241a of the first movable end portion 241, and the second ends of the connecting wall portions 25a and 25b extend from the first movable end portion 241, respectively. A pair of movable end divided bodies 242a of the movable end 242 is formed.
The connecting plate portion 26a positioned at one end of each connecting wall portion 25a, 25b and the first movable end portion 241, and the connecting plate portion 26c positioned at the other end of each connecting wall portion 25a, 25b and the first plate The two movable end portions 242 are also connected by a hinge portion 27.
The insertion member driving portion 23 is divided into two parts by a total of six connection plate portions constituting the connection wall portions 25a and 25b, a first movable end portion 241 and a slit-like insertion member window 28 ( However, the plate-shaped second movable end portion 242 (connected by the bridging portion 242b) has an octagonal shape.

連結壁部25a、25bは、内部空間Sを介して両側に対向配置されている。各連結壁部25a、25bは、3つの連結プレート部26a〜26cの内、中央の連結プレート26bを頂部とする概略「く」字形に形成されている。そして、概略「く」字形の屈曲部の内角側が互いに対面する向き、すなわち、前記屈曲部が両側(介挿部材駆動部23の外側)に張り出すように設けられている。
第1可動端部241のベース壁部241aは、一対の連結壁部25a、25bによって、介挿部材駆動部23の第2可動端部242を構成する一対の可動端部分割体242aと平行となるように支持されている。
The connecting wall portions 25a and 25b are disposed opposite to each other with the internal space S therebetween. Each of the connecting wall portions 25a, 25b is formed in a generally “<” shape with the central connecting plate 26b as the top of the three connecting plate portions 26a to 26c. Then, the inner corners of the generally “<”-shaped bent portions face each other, that is, the bent portions are provided so as to project to both sides (outside the insertion member driving portion 23).
The base wall portion 241a of the first movable end portion 241 is parallel to the pair of movable end portion divided bodies 242a constituting the second movable end portion 242 of the insertion member driving portion 23 by the pair of connecting wall portions 25a and 25b. It is supported to become.

連結壁部25a、25bを構成している隣り合う連結プレート部同士を連結するヒンジ部27は、具体的には、連結プレート26a〜26cや第1可動端部241、第2可動端部242に比べて薄く変形容易な薄肉部である。また、各連結壁部25a、25bの一端部に位置する連結プレート部26aと第1可動端部241との間を連結するヒンジ部27、及び、各連結壁部25a、25bの他端部に位置する連結プレート部26cと第2可動端部242との間を連結するヒンジ部27も、薄肉部である。   Specifically, the hinge portion 27 that connects adjacent connecting plate portions constituting the connecting wall portions 25a and 25b is connected to the connecting plates 26a to 26c, the first movable end portion 241, and the second movable end portion 242. It is a thin part that is thinner and easier to deform. Further, a hinge portion 27 that connects between the connecting plate portion 26a located at one end of each connecting wall portion 25a, 25b and the first movable end portion 241, and the other end of each connecting wall portion 25a, 25b. The hinge part 27 which connects between the connection plate part 26c and the 2nd movable end part 242 which are located is also a thin part.

ヒンジ部27は、隣り合う連結プレート部同士の間、連結プレート部26aと第1可動端部241との間、連結プレート部26cと第2可動端部242との間を、それぞれ、介挿部材駆動部23の中心軸線に向きを揃えた軸線回りの回転を可能として連結するものである。ヒンジ部27である薄肉部は、該薄肉部の変形によって、隣り合う連結プレート部同士の間、連結プレート部26aと第1可動端部241との間、連結プレート部26cと第2可動端部242との間を、それぞれ、回動可能に連結する。
ヒンジ部27のうち、連結プレート部26aと第1可動端部241、連結プレート部26cと第2可動端部242とを連結するヒンジ部27Aは、連結プレート部26cおよび第2可動端部242の厚さ方向の外方側に形成されている。
連結プレート部26a、26cと連結プレート部26bとを連結するヒンジ部27Bは、連結プレート部26a〜26cの厚さ方向の内方側に形成されている。
The hinge portion 27 is an interposition member between the adjacent connecting plate portions, between the connecting plate portion 26a and the first movable end portion 241, and between the connecting plate portion 26c and the second movable end portion 242, respectively. The drive unit 23 is connected to the central axis of the drive unit 23 so as to be able to rotate around the axis line. The thin portion which is the hinge portion 27 is formed by deforming the thin portion, between the adjacent connecting plate portions, between the connecting plate portion 26a and the first movable end portion 241, and between the connecting plate portion 26c and the second movable end portion. 242 are connected to each other so as to be rotatable.
Among the hinge portions 27, the hinge portion 27 </ b> A that connects the connecting plate portion 26 a and the first movable end portion 241, and the connecting plate portion 26 c and the second movable end portion 242, includes the connecting plate portion 26 c and the second movable end portion 242. It is formed on the outer side in the thickness direction.
A hinge portion 27B for connecting the connecting plate portions 26a, 26c and the connecting plate portion 26b is formed on the inner side in the thickness direction of the connecting plate portions 26a to 26c.

介挿部材駆動部23の形状(断面形状)を指す「リング状」とは、円形、楕円形、五角形や六角形等の多角形、菱形等を含む。また、C字形のように、一部に不連続部分が存在するものも含む。
C字形は、すなわち、第2可動端部242に橋絡部242bが無く、第2可動端部242が介挿部材用窓28によって2分されている場合である。
The “ring shape” indicating the shape (cross-sectional shape) of the insertion member driving unit 23 includes a circle, an ellipse, a polygon such as a pentagon and a hexagon, a rhombus, and the like. Moreover, the thing which has a discontinuous part in part like C shape is also included.
In other words, the C shape is a case where the second movable end 242 does not have the bridging portion 242 b and the second movable end 242 is divided into two by the insertion member window 28.

介挿部材駆動部23は、第1可動端部241と第2可動端部242の間にて、該介挿部材駆動部23の内部空間Sを介して両側に張り出すように設けられた連結壁部25a、25bに、左右両側(図4(a)、(b)、図5左右)から押圧力(側圧。矢印P1)を作用させ、連結壁部25a、25b同士を互いに接近させることで、第1可動端部241と第2可動端部242との間の距離が増大するようになっている。これにより、介挿部材駆動部23の介挿部材係合部243の引き抜き用係合部248(図7参照)が、第2可動端部242側から、介挿部材21の係合受け部213bに係合して、介挿部材21の、第2可動端部242からの距離が増大する。その結果、介挿部材21は、第2可動端部242に対して相対的に、介挿部材駆動部23外側への突出寸法を減少(あるいは突出を解消)する方向、つまり、介挿部材駆動部23の内部空間S内側に引き込む方向に移動される。   The insertion member drive unit 23 is provided between the first movable end 241 and the second movable end 242 so as to project to both sides via the internal space S of the insertion member drive unit 23. A pressing force (side pressure, arrow P1) is applied to the wall portions 25a and 25b from both the left and right sides (FIGS. 4A, 4B, and 5 left and right) to bring the connecting wall portions 25a and 25b closer to each other. The distance between the first movable end 241 and the second movable end 242 is increased. Accordingly, the pulling engagement portion 248 (see FIG. 7) of the insertion member engagement portion 243 of the insertion member driving portion 23 is engaged with the engagement receiving portion 213b of the insertion member 21 from the second movable end portion 242 side. The distance from the second movable end 242 of the insertion member 21 is increased. As a result, the insertion member 21 is in a direction that reduces the protrusion dimension to the outside of the insertion member drive unit 23 (or cancels the protrusion) relative to the second movable end 242, that is, the insertion member drive. It is moved in a direction to be pulled into the inner space S of the portion 23.

両側の連結壁部25a、25bにおいて、介挿部材駆動部23の内部空間Sを介して左右(図4(a)、(b)、図5における左右)への張り出しが最も大きい部位(図示例の介挿部材駆動部23では連結プレート部26b)は、介挿部材駆動部23を変形させる側圧を作用させるための側圧作用部25pとして機能する。介挿部材駆動部23は、中央部の介挿部材21を介して、左右(図4(a)、(b)、図5における左右)対称に構成されており、両側の連結壁部25a、25bの側圧作用部25pは、介挿部材駆動部23の内部空間Sを介して、丁度、対応する両側にある。   In the connecting wall portions 25a and 25b on both sides, the portions that project to the left and right (left and right in FIGS. 4A, 4B, and 5) via the internal space S of the insertion member driving portion 23 are largest (illustrated example). In the insertion member driving portion 23, the connecting plate portion 26b) functions as a side pressure acting portion 25p for applying a side pressure that deforms the insertion member driving portion 23. The insertion member drive unit 23 is configured to be bilaterally symmetrical (right and left in FIGS. 4A, 4B, and 5) via the central insertion member 21, and the connecting wall portions 25a on both sides. The side pressure acting portions 25p of 25b are located on the corresponding both sides via the internal space S of the insertion member driving portion 23.

図5に示すように、介挿部材駆動部23の左右両側の側圧作用部25pに側圧を作用させて、側圧作用部25p同士を接近させると、第1可動端部241と第2可動端部242とが介挿部材駆動部23の断面中央部(一対の側圧作用部25pの中間位置)から離隔するように、介挿部材移動直線Mに沿って移動して、第1可動端部241と第2可動端部242との間の距離が増大する(以下、介挿部材移動直線Mに沿った方向、すなわち、図4(a)、(b)、図5の上下方向)。
図8、図9、図11(a)〜(c)から図14(a)〜(c)に示すように、第1可動端部241は、該第1可動端部241に設けられている介挿部材係合部243と介挿部材21との係合(詳細には引き抜き用係合部248と、後述の弾性爪213(より詳しくは係合受け部213b)との係合)によって、介挿部材21を牽引するようにして、介挿部材駆動部23外側への突出寸法を減少(あるいは突出を解消)する方向、つまり、介挿部材21を内側に引き込む方向に移動させる。
As shown in FIG. 5, when a lateral pressure is applied to the lateral pressure acting portions 25 p on both the left and right sides of the insertion member driving portion 23 to bring the lateral pressure acting portions 25 p closer to each other, the first movable end 241 and the second movable end 242 is moved along the insertion member movement straight line M so as to be separated from the center of the cross section of the insertion member drive unit 23 (intermediate position of the pair of side pressure acting portions 25p), and the first movable end 241 and The distance from the second movable end portion 242 increases (hereinafter, the direction along the insertion member movement straight line M, that is, the vertical direction in FIGS. 4A, 4B, and 5).
As shown in FIGS. 8, 9, and 11 (a) to 11 (c) to 14 (a) to (c), the first movable end 241 is provided on the first movable end 241. By engagement between the insertion member engaging portion 243 and the insertion member 21 (specifically, engagement between the pulling engagement portion 248 and an elastic claw 213 described below (more specifically, engagement receiving portion 213b)), As the insertion member 21 is pulled, it is moved in a direction to reduce the protrusion dimension to the outside of the insertion member drive unit 23 (or to eliminate the protrusion), that is, in a direction to pull the insertion member 21 inward.

一方、第2可動端部242は、介挿部材駆動部23の断面中央部から離隔する方向への変位によって、介挿部材21に対する相対的に位置変動することで、第2可動端部242から介挿部材駆動部23外側への介挿部材21の突出寸法を減少(あるいは突出を解消)せしめる。
両側からの側圧による介挿部材駆動部23の変形によって「介挿部材を前記介挿部材用窓から該介挿部材駆動部の外側への突出寸法が減少する方向に移動させる」ことは、第1可動端部241の変位に伴う介挿部材21の移動と、第2可動端部242の介挿部材21に対する相対的な移動、の両方によって実現される。
On the other hand, the second movable end portion 242 moves relative to the insertion member 21 due to displacement in a direction away from the central portion of the cross section of the insertion member driving portion 23, thereby causing the second movable end portion 242 to move away from the second movable end portion 242. The protrusion dimension of the insertion member 21 to the outside of the insertion member drive unit 23 is reduced (or the protrusion is eliminated).
“The insertion member is moved from the insertion member window in the direction in which the protruding dimension to the outside of the insertion member driving portion is reduced” by the deformation of the insertion member driving portion 23 due to the side pressure from both sides. This is realized by both the movement of the insertion member 21 accompanying the displacement of the first movable end 241 and the relative movement of the second movable end 242 with respect to the insertion member 21.

前述のように、介挿部材駆動部23の両側の連結壁部25a、25bは、複数のヒンジ部27によって、「く」字状に屈曲した状態になっているが、左右両側から側圧が加えられると、両側の連結壁部25a、25bは、「く」字状に屈曲した状態から、屈曲部分の角度が徐々に大きくなり(次第に直線状に近くなる。図5想像線参照)、図15の状態に至る。
介挿部材駆動部23が左右両側からの側圧によって変形していくと、介挿部材駆動部23の左右両側の側圧作用部25p同士が接近するに伴い、各連結壁部25a、25bの両端の連結プレート部26a、26cの傾斜角度が変化する(介挿部材駆動部23の上下方向に対する傾斜角度が次第に小さくなり、上下方向に沿って延在する介挿部材21に沿った直線状に次第に近くなる)。これにより、第1可動端部241と第2可動端部242との間の離間距離の増大となる。
As described above, the connecting wall portions 25a and 25b on both sides of the insertion member driving portion 23 are bent in a "<" shape by the plurality of hinge portions 27, but a lateral pressure is applied from both the left and right sides. As a result, the connecting wall portions 25a and 25b on both sides gradually increase in angle at the bent portion from the state of being bent in a "<" shape (refer to the imaginary line in FIG. 5). To the state of.
When the insertion member drive part 23 is deformed by the lateral pressure from both the left and right sides, the side pressure acting parts 25p on both the left and right sides of the insertion member drive part 23 approach each other. The inclination angle of the connecting plate portions 26a and 26c changes (the inclination angle of the insertion member driving portion 23 with respect to the vertical direction gradually decreases and gradually approaches a linear shape along the insertion member 21 extending along the vertical direction. Become). As a result, the separation distance between the first movable end 241 and the second movable end 242 is increased.

介挿部材駆動部23は、必ずしも、左右対称に形成されていることに限定されない。但し、図5等に示すように、介挿部材駆動部23が左右対称(特に両側部。連結壁部25a、25bが左右対称)に形成されている構成であれば、介挿部材駆動部23の変形に伴う介挿部材21の直線的な移動を安定に保つ点で有利である。   The insertion member driving unit 23 is not necessarily limited to being formed symmetrically. However, as shown in FIG. 5 and the like, the insertion member driving unit 23 has a configuration in which the insertion member driving unit 23 is formed to be bilaterally symmetric (particularly both sides, the connecting wall portions 25a and 25b are bilaterally symmetric). This is advantageous in that the linear movement of the insertion member 21 accompanying the deformation of is kept stable.

介挿部材駆動部23としては、左右両側からの側圧によって上下方向の寸法が増大するように変形する構造であれば良く、例えば、介挿部材21に沿って延びる細長い構造等であっても良い。
但し、介挿部材駆動部23としては、光コネクタ3のクランプ部32の一対の素子31c、321間に割り込ませてある介挿部材21を素子31c、321間から引き抜くにあたり、左右両側からの側圧による左右方向寸法の縮小分に比べて、上下方向寸法の増加量が小さい、構造であることがより好ましい。この場合、介挿部材駆動部23が、両側から側圧を増力して、素子31c、321から介挿部材21を引き抜く引き抜き力に変換するトグル機構(増力機構)を構成することとなり、介挿部材21の引き抜きを、楽に、円滑に行えるようになる点で有利である。
The insertion member driving unit 23 may have a structure that can be deformed so that the vertical dimension is increased by a lateral pressure from both the left and right sides. For example, the insertion member driving unit 23 may be an elongated structure that extends along the insertion member 21. .
However, as the insertion member driving unit 23, when the insertion member 21 that is interrupted between the pair of elements 31c and 321 of the clamp part 32 of the optical connector 3 is pulled out from between the elements 31c and 321, side pressure from both the left and right sides is extracted. It is more preferable that the structure has a smaller amount of increase in the vertical dimension than the reduction in the horizontal dimension due to. In this case, the insertion member drive unit 23 constitutes a toggle mechanism (intensification mechanism) that increases the lateral pressure from both sides and converts it into a pulling force that pulls the insertion member 21 out of the elements 31c and 321. This is advantageous in that the extraction of 21 can be performed easily and smoothly.

図8、図9等を参照して、介挿部材21の基端部21bを構成する一対の弾性爪213と、介挿部材係合部243との係合構造について具体的に説明する。
介挿部材係合部243の基端部収納穴244に収納された各弾性爪213の側部の係合受け部213bは、前記基端部収納穴244の第2可動端部242とは反対側の端部を拡張した部分である拡張穴245に収納されている。弾性爪213と介挿部材係合部243との係合は、弾性爪213の係合受け部213bが、基端部収納穴244における前記拡張穴245と該拡張穴245以外の部分(弾性片収納孔247)との間の段差246に係合することにより実現される。前記段差246を形成する介挿部材係合部243の内壁、すなわち、拡張穴245よりも狭い弾性片収納孔247の内壁面を形成する壁部は、弾性爪213の係合受け部213bが係合される引き抜き用係合部248を形成している。引き抜き用係合部248には、弾性爪213の係合受け部213bが、第2可動端部242とは反対の側から係合される。これにより、基端部21bの介挿部材係合部243からの抜け出しが規制される。
With reference to FIG. 8, FIG. 9, etc., the engagement structure of a pair of elastic nail | claw 213 and the insertion member engaging part 243 which comprise the base end part 21b of the insertion member 21 is demonstrated concretely.
The engagement receiving portion 213b on the side portion of each elastic claw 213 accommodated in the proximal end portion accommodating hole 244 of the insertion member engaging portion 243 is opposite to the second movable end portion 242 of the proximal end portion accommodating hole 244. It is accommodated in an expansion hole 245 which is a portion where the end on the side is expanded. The engagement between the elastic claw 213 and the insertion member engaging portion 243 is such that the engagement receiving portion 213b of the elastic claw 213 is a portion other than the expansion hole 245 and the expansion hole 245 in the base end portion accommodation hole 244 (elastic piece This is realized by engaging the step 246 with the storage hole 247). The inner wall of the insertion member engaging portion 243 that forms the step 246, that is, the wall portion that forms the inner wall surface of the elastic piece receiving hole 247 narrower than the expansion hole 245 is engaged with the engagement receiving portion 213b of the elastic claw 213. A pulling engagement portion 248 to be joined is formed. An engagement receiving portion 213 b of the elastic claw 213 is engaged with the pulling engagement portion 248 from the side opposite to the second movable end portion 242. Accordingly, the base end portion 21b is prevented from coming off from the insertion member engaging portion 243.

基端部収納穴244は、基端部21bを、該基端部収納穴244の軸方向(中心軸線に沿った方向)への移動を許容して収納する。介挿部材係合部243は、介挿部材21の基端部収納穴244の軸方向に沿った姿勢を維持しつつ、介挿部材21の移動をガイドするガイド部材としての機能を果たす。第1可動端部241と、第2可動端部242の介挿部材用窓28とは、基端部収納穴244の中心軸線及びその延長(以下、介挿部材移動直線とも言う)上に位置している。介挿部材移動直線(図5の想像線M)は、リング状の介挿部材駆動部23の中心軸線を通る。   The base end portion storage hole 244 stores the base end portion 21b while allowing the base end portion storage hole 244 to move in the axial direction (direction along the central axis). The insertion member engaging portion 243 functions as a guide member that guides the movement of the insertion member 21 while maintaining the posture along the axial direction of the proximal end accommodation hole 244 of the insertion member 21. The first movable end portion 241 and the insertion member window 28 of the second movable end portion 242 are positioned on the central axis of the base end portion accommodation hole 244 and its extension (hereinafter also referred to as an insertion member movement straight line). is doing. The insertion member movement straight line (imaginary line M in FIG. 5) passes through the central axis of the ring-shaped insertion member drive unit 23.

介挿部材21の、第1可動端部241側への押し込み方向の移動は、介挿部材21の中間ストッパブロック211(具体的には、中間ストッパブロック211の底面211a。一対の弾性爪213は、中間ストッパブロック211の底面211aの一部から延出している。)が、介挿部材係合部243の第1可動端部241からの突出先端面243aに突き当たったところが、移動限界位置(押し込み限界位置)である。なお、介挿部材係合部243の突出先端面243aは、介挿部材移動直線Mに垂直な平坦面である。
介挿部材21A、21Bの細長弾性片213aの延出長、すなわち、中間ストッパブロック211(詳細には底面211a)から係合受け部213bまでの延出長L1、L2は、基端部収納穴244の長さ(軸方向寸法)よりも長い。但し、2本の介挿部材21A、21Bは、互いの中間ストッパブロック211からの延出長L1、L2が異ならせてある。
The movement of the insertion member 21 in the pushing direction toward the first movable end 241 is performed by the intermediate stopper block 211 (specifically, the bottom surface 211a of the intermediate stopper block 211. The pair of elastic claws 213 is , Which extends from a part of the bottom surface 211a of the intermediate stopper block 211.) hits the protruding tip surface 243a from the first movable end 241 of the insertion member engaging portion 243, the movement limit position (push-in) Limit position). The protruding tip surface 243a of the insertion member engaging portion 243 is a flat surface perpendicular to the insertion member movement straight line M.
The extension lengths of the elongated elastic pieces 213a of the insertion members 21A and 21B, that is, the extension lengths L1 and L2 from the intermediate stopper block 211 (specifically, the bottom surface 211a) to the engagement receiving portion 213b are the base end accommodation holes. It is longer than the length of 244 (axial dimension). However, the two insertion members 21A and 21B have different extension lengths L1 and L2 from the intermediate stopper block 211.

具体的には、2本の介挿部材21の内、符号21Bの介挿部材よりも介挿部材駆動部23の前側に位置する、符号21Aの介挿部材の細長弾性片213aの延出長L1の方が、符号21Bの介挿部材の細長弾性片213aの延出長L2よりも短い。このため、各介挿部材21A、21Bの中間ストッパブロック211を介挿部材係合部243に突き当てると、介挿部材21A、21Bの細長弾性片213aの延出長L1、L2の違いによって、介挿部材21Aの係合受け部213bと引き抜き用係合部248との間に確保されるクリアランスc1よりも、介挿部材21Bの係合受け部213bと引き抜き用係合部248との間のクリアランスc2の方が大きい。   Specifically, of the two insertion members 21, the extension length of the elongated elastic piece 213a of the insertion member 21A located on the front side of the insertion member drive unit 23 relative to the insertion member 21B. L1 is shorter than the extended length L2 of the elongated elastic piece 213a of the insertion member 21B. For this reason, when the intermediate stopper block 211 of each insertion member 21A, 21B is abutted against the insertion member engaging portion 243, due to the difference in the extension lengths L1, L2 of the elongated elastic pieces 213a of the insertion members 21A, 21B, The clearance between the engagement receiving portion 213b of the insertion member 21B and the extraction engaging portion 248 is larger than the clearance c1 secured between the engagement receiving portion 213b of the insertion member 21A and the extraction engaging portion 248. The clearance c2 is larger.

介挿部材21は、細長弾性片213aを、介挿部材係合部243の基端部収納穴244に遊挿しているため、介挿部材21と介挿部材係合部243とは、前記クリアランスc1、c2の範囲で、介挿部材移動直線Mに沿った方向で相対的に移動できる。
但し、前側の介挿部材21Aについては、クリアランスc1をゼロにしても良い。
Since the insertion member 21 loosely inserts the elongated elastic piece 213a into the base end portion storage hole 244 of the insertion member engagement portion 243, the insertion member 21 and the insertion member engagement portion 243 have the clearance described above. In the range of c1 and c2, it can move relatively in the direction along the insertion member movement straight line M.
However, the clearance c1 may be set to zero for the front insertion member 21A.

前記介挿部材係合部243は、介挿部材21の中間ストッパブロック211が第2可動端部242側から突き当てられることで、介挿部材21の前記第1可動端部241側への押し込み方向の移動を規制する押し込みストッパ部を兼ねる。また、介挿部材21の中間ストッパブロック211は、押し込みストッパ部として機能する介挿部材係合部243に当接されるストッパ当接部としての機能を果たす。
介挿部材21のストッパ当接部(中間ストッパブロック211)が当接される介挿部材係合部243は、例えば、光コネクタ3のクランプ部32の素子31c、321間に光コネクタ用工具2の介挿部材21の先端部21aを押し込むようにして割り込ませる際には、押し込み力を支圧する受圧部材としての機能を果たすことになり、割り込ませる作業を容易に行える、といった利点がある。
The insertion member engaging portion 243 is pushed into the first movable end portion 241 side of the insertion member 21 by the intermediate stopper block 211 of the insertion member 21 being abutted from the second movable end portion 242 side. Also serves as a push-in stopper that restricts movement in the direction. Further, the intermediate stopper block 211 of the insertion member 21 functions as a stopper abutting portion that abuts on the insertion member engaging portion 243 that functions as a pushing stopper portion.
The insertion member engaging portion 243 with which the stopper contact portion (intermediate stopper block 211) of the insertion member 21 is abutted is, for example, the optical connector tool 2 between the elements 31c and 321 of the clamp portion 32 of the optical connector 3. When the tip part 21a of the insertion member 21 is pushed in to be interrupted, the insertion member 21 functions as a pressure receiving member for supporting the pressing force, and there is an advantage that the interrupting work can be easily performed.

なお、拡張穴245は、介挿部材21が押し込み限界位置にあるときでも、係合受け部213bを収納した状態を保ち、介挿部材駆動部23の外側に突出させない大きさに形成されている。但し、本発明は、介挿部材21の基端部21bが、介挿部材駆動部23の外側に突出する構成を排除するものではない。
また、図示例の光コネクタ用工具2では、基端部収納穴244は、介挿部材係合部243を貫通する貫通穴であり、拡張穴245は介挿部材駆動部23の外周面側に開口しているが、これに限定されず、介挿部材駆動部23の外周面側に開口していない拡張穴245を採用することも可能である。但し、この場合、拡張穴245は、介挿部材21が押し込み限界位置にあるときでも、引き抜き用係合部248から第2可動端部242とは反対の側へ離隔された係合受け部213bを収納できる大きさが確保される必要があることは言うまでも無い。
Note that the expansion hole 245 is formed in a size that keeps the engagement receiving portion 213b accommodated even when the insertion member 21 is in the push-down limit position and does not protrude outside the insertion member drive portion 23. . However, the present invention does not exclude a configuration in which the proximal end portion 21 b of the insertion member 21 protrudes outside the insertion member drive unit 23.
Further, in the illustrated optical connector tool 2, the base end portion accommodation hole 244 is a through hole that penetrates the insertion member engaging portion 243, and the expansion hole 245 is formed on the outer peripheral surface side of the insertion member driving portion 23. Although it opens, it is not limited to this, The expansion hole 245 which is not opened to the outer peripheral surface side of the insertion member drive part 23 is also employable. However, in this case, even when the insertion member 21 is at the push-in limit position, the expansion hole 245 is an engagement receiving portion 213b that is separated from the pulling engagement portion 248 to the side opposite to the second movable end portion 242. Needless to say, it is necessary to secure a size capable of storing the battery.

なお、介挿部材21の、介挿部材係合部243に当接されるストッパ当接部は、必ずしも、介挿部材21の中間ストッパブロック211自体である必要はなく、例えば、中間ストッパブロック211に代えて、板状突起212の側部に突設した爪状の小突起等であっても良い。また、介挿部材駆動部23側の押し込みストッパ部としても、介挿部材係合部がこれを兼ねる構造に限定されず、例えば、第1可動端部241に介挿部材係合部とは別に突設された突片であっても良い。押し込みストッパ部としては、介挿部材係合部の基端部収納穴内に突設された突起等であっても良い。
また、介挿部材係合部としては、第1可動端部241から介挿部材駆動部23の内部空間S側に突出する突起状のものに限定されない。基端部収納穴としては、介挿部材係合部243の形成を省略した板状の第1可動端部241(すなわち、ベース壁部241a自体が第1可動端部241である場合)自体に開口された貫通穴であっても良く、第1可動端部自体が、介挿部材係合部として機能する構造も採用可能である。
また、図示例の光コネクタ用工具2では、一つの基端部収納穴243に基端部収納穴244が2つ形成されて、2本の介挿部材21A、21Bの取り付けに対応できるようになっているが、これに限定されず、基端部収納穴毎に独立した介挿部材係合部を第1可動端部に設けることも可能である。
Note that the stopper contact portion of the insertion member 21 that is in contact with the insertion member engaging portion 243 does not necessarily need to be the intermediate stopper block 211 itself of the insertion member 21, for example, the intermediate stopper block 211. Instead of this, a claw-like small protrusion or the like protruding from the side of the plate-like protrusion 212 may be used. Also, the pushing stopper portion on the insertion member driving portion 23 side is not limited to the structure in which the insertion member engaging portion also serves as this, and for example, the first movable end 241 is separated from the insertion member engaging portion. It may be a protruding piece. As a pushing stopper part, the protrusion etc. which protruded in the base end part accommodation hole of the insertion member engaging part may be sufficient.
Further, the insertion member engaging portion is not limited to a projection-like one protruding from the first movable end portion 241 to the internal space S side of the insertion member driving portion 23. As the base end portion accommodation hole, a plate-like first movable end portion 241 in which the formation of the insertion member engaging portion 243 is omitted (that is, when the base wall portion 241a itself is the first movable end portion 241) itself. An open through-hole may be used, and a structure in which the first movable end itself functions as an insertion member engaging portion can also be employed.
Further, in the illustrated optical connector tool 2, two base end portion storage holes 244 are formed in one base end portion storage hole 243 so that the two insertion members 21 </ b> A and 21 </ b> B can be attached. However, the present invention is not limited to this, and it is also possible to provide an insertion member engaging portion independent for each base end portion accommodation hole in the first movable end portion.

図8、図9に示すように、図示例の光コネクタ用工具2では、介挿部材21の基端部21bを、介挿部材係合部243の基端部収納穴244に第2可動端部242側から押し込んで、介挿部材21を介挿部材駆動部23に組み付ける。詳細には、第1可動端部241側の介挿部材係合部243に介挿部材21の基端部21bを組み込む。
ここで、一本の介挿部材21に突設されている複数本の弾性爪213は、弾性爪213同士が互いに接近するように弾性変形させた状態で、基端部収納穴244の弾性片収納孔247に押し込んで行く。そして、先端の係合受け部213bが拡張穴245に到達したところで、弾性爪213が弾性爪213同士間の間隔を開けるように弾性復帰して、係合受け部213bが、拡張穴245の引き抜き用係合部248の、第2可動端部242とは反対の側に入り込み、弾性爪213の拡張穴245からの離脱が防止されることで、介挿部材駆動部23の第1可動端部241に対する介挿部材21の取り付けが完了する。
つまり、この光コネクタ用工具2では、基端部収納穴244への基端部21bの押し込みだけで、介挿部材21を介挿部材駆動部23に組み付けて、簡単に組み立てることができる。また、光コネクタ3のクランプ部32の構造に対応して、適切なサイズや形状の介挿部材21を選択して、介挿部材駆動部23に組み付けるといったことも簡単に行うことができ、光コネクタ3の構造に対応する構成の光コネクタ用工具2を簡単に得ることができる。
なお、図示例の介挿部材21では、2本の弾性爪213からなる基端部21bを例示したが、基端部21bとしては、3本以上の弾性爪213からなる構造も採用可能である。
As shown in FIGS. 8 and 9, in the illustrated optical connector tool 2, the base end portion 21 b of the insertion member 21 is inserted into the base end portion accommodation hole 244 of the insertion member engaging portion 243 as the second movable end. It pushes in from the part 242 side, and the insertion member 21 is assembled | attached to the insertion member drive part 23. FIG. Specifically, the proximal end portion 21b of the insertion member 21 is incorporated into the insertion member engaging portion 243 on the first movable end portion 241 side.
Here, the plurality of elastic claws 213 projecting from one insertion member 21 are elastically deformed so that the elastic claws 213 come close to each other, and the elastic pieces of the base end portion storage hole 244 are provided. It is pushed into the storage hole 247. Then, when the engagement receiving portion 213b at the tip reaches the expansion hole 245, the elastic claw 213 is elastically restored so as to open a space between the elastic claws 213, and the engagement reception portion 213b is pulled out of the expansion hole 245. The engagement portion 248 enters the opposite side of the second movable end portion 242 and prevents the elastic claw 213 from being detached from the expansion hole 245, so that the first movable end portion of the insertion member driving portion 23 is prevented. The attachment of the insertion member 21 to 241 is completed.
That is, the optical connector tool 2 can be easily assembled by assembling the insertion member 21 to the insertion member driving portion 23 by simply pushing the proximal end portion 21b into the proximal end portion accommodation hole 244. In addition, it is possible to easily select and insert the insertion member 21 having an appropriate size and shape in accordance with the structure of the clamp portion 32 of the optical connector 3 to the insertion member drive portion 23. The optical connector tool 2 having a configuration corresponding to the structure of the connector 3 can be easily obtained.
In the illustrated example of the insertion member 21, the base end portion 21b including the two elastic claws 213 is illustrated. However, as the base end portion 21b, a structure including three or more elastic claws 213 may be employed. .

介挿部材21の中間ストッパブロック211が介挿部材係合部243に当接された状態において、介挿部材21の係合受け部213bと引き抜き用係合部248との間に確保されるクリアランス(離間距離。図8の寸法c1、c2を参照)の大きさ(離間距離)は、介挿部材21毎に異なっている。
既述の通り、図示例の光コネクタ用工具2では、各介挿部材21A、21Bの中間ストッパブロック211が介挿部材係合部243に当接された状態において、介挿部材21Aの係合受け部213bと引き抜き用係合部248との間に確保されるクリアランスc1よりも、介挿部材21Bの係合受け部213bと引き抜き用係合部248との間のクリアランスc2の方が大きい。
Clearance secured between the engagement receiving portion 213b of the insertion member 21 and the pulling engagement portion 248 in a state where the intermediate stopper block 211 of the insertion member 21 is in contact with the insertion member engagement portion 243. The size (separation distance) (separation distance; see dimensions c1 and c2 in FIG. 8) differs for each insertion member 21.
As described above, in the illustrated optical connector tool 2, the engagement of the insertion member 21 </ b> A in a state where the intermediate stopper block 211 of each of the insertion members 21 </ b> A and 21 </ b> B is in contact with the insertion member engagement portion 243. The clearance c2 between the engagement receiving portion 213b of the insertion member 21B and the pulling engagement portion 248 is larger than the clearance c1 secured between the receiving portion 213b and the pulling engagement portion 248.

2本の介挿部材21A、21Bは、クランプ部32におけるフェルール側光ファイバ38と、光ファイバ4先端の裸光ファイバ4aとの突き合わせ接続の接続点5からの距離が異なるように配置されている。
介挿部材21Aは、接続点5に対応させて配置された介挿部材21であり、この介挿部材21Aに比べて、接続点5からの距離が遠い介挿部材21Bの方が、前記クリアランスが大きい、という関係になっている。
The two insertion members 21 </ b> A and 21 </ b> B are arranged so that the distances from the connection point 5 of the butt connection between the ferrule side optical fiber 38 in the clamp portion 32 and the bare optical fiber 4 a at the tip of the optical fiber 4 are different. .
The insertion member 21 </ b> A is an insertion member 21 disposed in correspondence with the connection point 5, and the insertion member 21 </ b> B farther from the connection point 5 than the insertion member 21 </ b> A has the clearance. The relationship is large.

なお、介挿部材を3本以上具備する光コネクタ用工具の場合は、複数本の介挿部材を、前記接続点5に対応する位置で光コネクタのクランプ部の素子間に割り込ませる介挿部材から、順次、光コネクタ3の後端側となるように配列設置し、しかも、光コネクタ3の後端側に割り込ませる介挿部材ほど、クリアランスが大きくなるようにする。
これにより、介挿部材駆動部23を両側からの側圧によって変形させたときに、光コネクタ3のクランプ部32の一対の素子31c、321間に割り込ませてあった介挿部材21の引き抜きが、接続点5に近い介挿部材21から、順に、接続点5から遠い介挿部材21について実現(時差抜き去り)されるようになっている。
In the case of an optical connector tool having three or more insertion members, an insertion member that causes a plurality of insertion members to be inserted between the elements of the clamp portion of the optical connector at a position corresponding to the connection point 5. Are arranged in order so as to be on the rear end side of the optical connector 3, and the clearance is increased as the insertion member is inserted into the rear end side of the optical connector 3.
Thereby, when the insertion member drive part 23 is deformed by the side pressure from both sides, the insertion member 21 that has been interrupted between the pair of elements 31c and 321 of the clamp part 32 of the optical connector 3 is pulled out. The insertion member 21 that is far from the connection point 5 is sequentially realized (time difference removed) from the insertion member 21 that is close to the connection point 5.

つまり、介挿部材駆動部23を両側からの側圧によって、第1可動端部241と第2可動端部242との間の距離が増大するように変形させたときに、介挿部材21の係合受け部213bと介挿部材駆動部23の引き抜き用係合部248との係合により、介挿部材21A、21Bが、第1可動端部241(詳細には引き抜き用係合部248)に牽引されるようにして、光コネクタ3のクランプ部32の一対の素子31c、321から引き抜かれるようになっているため、複数本の介挿部材は、介挿部材21の係合受け部213bと引き抜き用係合部248との間に確保されるクリアランスが小さいものから順に、クランプ部32からの引き抜きが実現される。   That is, when the insertion member drive unit 23 is deformed so as to increase the distance between the first movable end 241 and the second movable end 242 by the lateral pressure from both sides, the engagement of the insertion member 21 is increased. Due to the engagement between the receiving portion 213b and the pulling engagement portion 248 of the insertion member driving portion 23, the insertion members 21A and 21B become the first movable end portion 241 (specifically, the pulling engagement portion 248). Since it is pulled out from the pair of elements 31 c and 321 of the clamp part 32 of the optical connector 3, the plurality of insertion members are connected to the engagement receiving part 213 b of the insertion member 21. Extraction from the clamp portion 32 is realized in order from the smallest clearance secured to the extraction engaging portion 248.

介挿部材21を介挿部材駆動部23から突出させるための構成(介挿部材用窓)としては、第2可動端部242を2分するスリット状の介挿部材用窓28に限定されず、例えば、第2可動端部242に穿孔した小孔等であっても良い。介挿部材用窓28は、後述のように介挿部材駆動部23の変形に伴う介挿部材21の移動を妨げない大きさとする。   The configuration for inserting the insertion member 21 from the insertion member drive unit 23 (intermediation member window) is not limited to the slit-shaped insertion member window 28 that bisects the second movable end 242. For example, a small hole or the like drilled in the second movable end 242 may be used. The insertion member window 28 has a size that does not hinder the movement of the insertion member 21 accompanying the deformation of the insertion member driving unit 23 as will be described later.

(コネクタホルダ部)
図1〜図3に示すように、コネクタホルダ部22は、光コネクタ3を挟み込んで保持する一対のコネクタ保持片22b、22cを備えて構成されている。
コネクタ保持片22b、22cは、第2可動端部242から介挿部材駆動部23の外側に向けて突設された突壁である。また、2つのコネクタ保持片22b、22cは、第2可動端部242の一対の可動端部分割体242aに1つずつ突設されている。
図4(a)、(b)に示すように、コネクタ保持片22b、22cの互いに対面するコネクタ保持面側には、光コネクタ3(例えばハウジング本体39a)を収納するためのコネクタ収納用凹所22aが形成されている。
(Connector holder)
As shown in FIGS. 1 to 3, the connector holder portion 22 includes a pair of connector holding pieces 22 b and 22 c that sandwich and hold the optical connector 3.
The connector holding pieces 22 b and 22 c are projecting walls that project from the second movable end 242 toward the outside of the insertion member driving unit 23. Further, the two connector holding pieces 22b and 22c are provided so as to protrude from the pair of movable end divided bodies 242a of the second movable end 242 one by one.
As shown in FIGS. 4A and 4B, connector holding recesses for storing the optical connector 3 (for example, the housing body 39a) are provided on the connector holding surfaces of the connector holding pieces 22b and 22c facing each other. 22a is formed.

図示例のコネクタホルダ部22の一対のコネクタ保持片22b、22cは、溝状の隙間22s(以下、コネクタ収納溝とも言う。)を介して離隔して設けられており、このコネクタ収納溝22sに収納した光コネクタ3(ハウジング39)を、コネクタ収納溝22sを介して両側のコネクタ保持片22b、22cの間に挟み込んで収納する。
コネクタ収納溝22sは、光コネクタ3のハウジング本体39aを収納するハウジング本体収納溝22dと、光コネクタ3のラッチ39bを収納するラッチ収納溝22eとで構成されている。また、このコネクタ収納溝22sは、介挿部材駆動部23の中心軸線方向に沿ってコネクタホルダ部22を貫通する貫通溝になっている。
The pair of connector holding pieces 22b and 22c of the connector holder portion 22 in the illustrated example are separated from each other via a groove-like gap 22s (hereinafter also referred to as a connector housing groove). The accommodated optical connector 3 (housing 39) is accommodated by being sandwiched between the connector holding pieces 22b and 22c on both sides via the connector accommodation groove 22s.
The connector housing groove 22s includes a housing body housing groove 22d for housing the housing body 39a of the optical connector 3 and a latch housing groove 22e for housing the latch 39b of the optical connector 3. Further, the connector housing groove 22 s is a through groove that penetrates the connector holder portion 22 along the central axis direction of the insertion member driving portion 23.

ハウジング本体収納溝22dは、コネクタホルダ部22の一対のコネクタ保持片22b、22cのコネクタ収納用凹所22aが形成されている部分同士が対面している所であり、コネクタホルダ部22の一対のコネクタ保持片22b、22cのコネクタ収納用凹所22aが形成されていない部分の間に確保されているラッチ収納溝22eの第2可動端部242側の端部を、一対のコネクタ保持片22b、22cのコネクタ収納用凹所22aによって拡張した形状になっている。
このハウジング本体収納溝22dは、コネクタ収納用凹所22aを含む。
The housing body housing groove 22d is a portion where the connector housing recesses 22a of the pair of connector holding pieces 22b and 22c of the connector holder portion 22 face each other. The end of the latch housing groove 22e secured between the portions where the connector housing recesses 22a of the connector holding pieces 22b and 22c are not formed are connected to the pair of connector holding pieces 22b, The connector housing recess 22a has an expanded shape.
The housing body housing groove 22d includes a connector housing recess 22a.

図5、図6に示すように、このコネクタホルダ部22では、コネクタ収納溝22sに収納した光コネクタ3のハウジング本体39aがハウジング本体収納溝22dに収納されて、一対のコネクタ保持片22b、22cの間に保持されるとともに、光コネクタ3のラッチ39bがラッチ収納溝22eに収納される。
つまり、光コネクタ3のハウジング本体39aの内、ラッチ39bが突設されている中央部を介して両側部分が、各コネクタ保持片22b、22cのコネクタ収納用凹所22aに収納され、ラッチ39bが、一対のコネクタ保持片22b、22cの間のラッチ収納溝22eに収納される。
As shown in FIGS. 5 and 6, in the connector holder portion 22, the housing main body 39a of the optical connector 3 housed in the connector housing groove 22s is housed in the housing body housing groove 22d, and a pair of connector holding pieces 22b, 22c is obtained. The latch 39b of the optical connector 3 is housed in the latch housing groove 22e.
That is, both side portions of the housing main body 39a of the optical connector 3 are housed in the connector housing recesses 22a of the connector holding pieces 22b and 22c through the central portion where the latch 39b is projected, and the latch 39b is In the latch housing groove 22e between the pair of connector holding pieces 22b, 22c.

但し、ラッチ収納溝22eは、ハウジング本体収納溝22dから、第2可動端部242とは反対の側のみに存在する。
このため、一対のコネクタ保持片22b、22cの間に挟み込む光コネクタ3は、ラッチ39bが、ハウジング本体39aから第2可動端部242とは反対の側となる姿勢でのみ、コネクタ保持片22b、22cのコネクタ収納用凹所22aに収納可能である。
光コネクタ3が、コネクタ収納溝22sに収納可能な姿勢であれば、光コネクタ3が一対のコネクタ保持片22b、22cに挟み込まれたときに、ハウジング本体39aの下面側(角筒状のハウジング本体39aの4面の側面の1つのみに形成されているラッチ39bとは反対の側)の介挿部材21用の差込口39cが、第2可動端部242側、つまり、光コネクタ用工具2の介挿部材21の側に向くことになる。
However, the latch housing groove 22e exists only on the side opposite to the second movable end 242 from the housing body housing groove 22d.
For this reason, the optical connector 3 sandwiched between the pair of connector holding pieces 22b and 22c has the latch 39b only in the posture opposite to the second movable end 242 from the housing main body 39a. It can be stored in the connector storing recess 22a of 22c.
If the optical connector 3 is in an attitude that can be accommodated in the connector accommodation groove 22s, when the optical connector 3 is sandwiched between the pair of connector holding pieces 22b and 22c, the lower surface side of the housing main body 39a (a rectangular tubular housing main body) The insertion port 39c for the insertion member 21 on the side opposite to the latch 39b formed on only one of the four side surfaces of 39a is the second movable end 242 side, that is, an optical connector tool. It will be directed to the second insertion member 21 side.

また、図4(a)、(b)に示すように、図示例のコネクタホルダ部22の、両コネクタ保持片22b、22cの溝状のコネクタ収納用凹所22aは、光コネクタ3のプラグフレーム33のフレーム本体39aが嵌め込まれるフレーム収納部22a1と、ストップリング34が嵌め込まれるストップリング収納部22a2とからなる。
フレーム収納部22a1とストップリング収納部22a2とは、介挿部材駆動部23の中心軸線に沿った方向(前後方向)において位置をずらして設けられている。
なお、フレーム収納部22a1は、ストップリング収納部22a2よりも、光コネクタ用工具2における前側に位置している。
4 (a) and 4 (b), the connector holding recess 22a of both connector holding pieces 22b and 22c of the connector holder portion 22 of the illustrated example is a plug frame of the optical connector 3. The frame housing portion 22a1 into which the 33 frame main bodies 39a are fitted, and the stop ring housing portion 22a2 into which the stop ring 34 is fitted.
The frame storage portion 22a1 and the stop ring storage portion 22a2 are provided with their positions shifted in a direction (front-rear direction) along the central axis of the insertion member drive portion 23.
The frame storage portion 22a1 is located on the front side of the optical connector tool 2 with respect to the stop ring storage portion 22a2.

両コネクタ保持片22b、22cのコネクタ収納用凹所22aは、フレーム収納部22a1、ストップリング収納部22a2の、光コネクタ用工具2の前後方向(すなわち、介挿部材駆動部23の中心軸線に沿った方向)における位置が揃えられている。
したがって、図7に示すように、コネクタ収納溝22sのハウジング本体収納溝22dも、フレーム収納部22a1に対応する部分(フレーム収納部22d1)と、ストップリング収納部22a2に対応する部分(ストップリング収納部22d2)とで、断面寸法が異なる。
光コネクタ3は、ハウジング本体39aの後端側にフランジ状に突設されているストッパ突起39d(ハウジング本体39aに外嵌めされたストップリング34の前端面34gよりもハウジング本体39a前端側に位置する)を、コネクタ収納用凹所22a内のフレーム収納部22a1とストップリング収納部22a2との間の段差面22a3(図7参照)に突き当てることで、光コネクタ用工具2の介挿部材21に対する位置決めを容易に実現できる。この突き当てによって、光コネクタ3のハウジング39の差込口39cを、介挿部材21に位置決めできる。
ストッパ突起39dは、コネクタ収納用凹所22a内の段差面22a3に当接することで、光コネクタ用工具2の前後方向に光コネクタ3を位置決めするための位置決め用当接部として機能するものである。但し、この位置決め用当接部としては、前述のフランジ状のストッパ突起39d以外にハウジング本体39aの側面に突設した突起であっても良い。また、ストッパ突起39dを省略して、ストップリング34の前端面34g自体を位置決め用当接部として機能させることも可能である。
The connector housing recesses 22a of the two connector holding pieces 22b and 22c are arranged in the longitudinal direction of the optical connector tool 2 of the frame housing portion 22a1 and the stop ring housing portion 22a2 (that is, along the central axis of the insertion member driving portion 23). In the same direction).
Accordingly, as shown in FIG. 7, the housing body housing groove 22d of the connector housing groove 22s is also composed of a portion corresponding to the frame housing portion 22a1 (frame housing portion 22d1) and a portion corresponding to the stop ring housing portion 22a2 (stop ring housing). The cross-sectional dimension differs between the portion 22d2).
The optical connector 3 is positioned on the front end side of the housing main body 39a with respect to a stopper protrusion 39d (a front end face 34g of a stop ring 34 fitted on the housing main body 39a) that protrudes in a flange shape on the rear end side of the housing main body 39a. ) Against the stepped surface 22a3 (see FIG. 7) between the frame housing portion 22a1 and the stop ring housing portion 22a2 in the connector housing recess 22a, so that the insertion member 21 of the optical connector tool 2 can be Positioning can be easily realized. By this abutment, the insertion port 39 c of the housing 39 of the optical connector 3 can be positioned on the insertion member 21.
The stopper protrusion 39d functions as a positioning contact portion for positioning the optical connector 3 in the front-rear direction of the optical connector tool 2 by contacting the step surface 22a3 in the connector housing recess 22a. . However, the positioning contact portion may be a protrusion protruding from the side surface of the housing main body 39a other than the flange-shaped stopper protrusion 39d. It is also possible to omit the stopper protrusion 39d and allow the front end surface 34g itself of the stop ring 34 to function as a positioning contact portion.

なお、図示例の光コネクタ用工具2では、コネクタホルダ部22の一対のコネクタ保持片22b、22cのそれぞれにコネクタ収納用凹所22aを形成した構造を例示したが、本発明はこれに限定されず、一対のコネクタ保持片22b、22cの片方のみにコネクタ収納用凹所22aを形成した構成を排除するものでは無い。   In the illustrated optical connector tool 2, the structure in which the connector housing recess 22 a is formed in each of the pair of connector holding pieces 22 b and 22 c of the connector holder portion 22 is illustrated, but the present invention is not limited thereto. It is not excluded that the connector housing recess 22a is formed in only one of the pair of connector holding pieces 22b and 22c.

また、図示例の光コネクタ用工具2では、一対のコネクタ保持片22b、22cが、コネクタ収納溝22sを介して離隔して設けられた構成のコネクタホルダ部を具備する構成を例示したが、本発明に係るコネクタホルダ部としては、これに限定されない。例えば、一対のコネクタ保持片22b、22cの間に光コネクタを保持していないときには、一対のコネクタ保持片22b、22cが、コネクタ収納用凹所22a以外の部分で閉じ合わされて、ラッチ収納溝22eが存在せず、光コネクタ3のハウジング本体39aを収納したときには、ハウジング本体39aによって押し広げられた一対のコネクタ保持片22b、22cの間にラッチ収納溝22eが形成される構成であっても良い。
また、ハウジング本体の側面に突出するラッチを具備していない光コネクタを保持するコネクタホルダ部の場合は、一対のコネクタ保持片の間にラッチ収納溝として機能し得る隙間が確保される必要が無いことは言うまでも無い。この場合は、例えば、互いに閉じ合わされた両コネクタ保持片22b、22cのコネクタ収納用凹所22aが合体してコネクタ収納穴が形成される構成も採用可能である。
Further, in the illustrated optical connector tool 2, the configuration in which the pair of connector holding pieces 22 b and 22 c are provided with the connector holder portion configured to be separated via the connector housing groove 22 s is illustrated. The connector holder portion according to the invention is not limited to this. For example, when the optical connector is not held between the pair of connector holding pieces 22b and 22c, the pair of connector holding pieces 22b and 22c are closed at a portion other than the connector receiving recess 22a, and the latch receiving groove 22e. When the housing main body 39a of the optical connector 3 is stored, the latch storage groove 22e may be formed between the pair of connector holding pieces 22b and 22c that are spread by the housing main body 39a. .
In the case of a connector holder portion that holds an optical connector that does not have a latch protruding on the side surface of the housing body, there is no need to ensure a gap that can function as a latch housing groove between the pair of connector holding pieces. Needless to say. In this case, for example, a configuration in which the connector housing recess 22a of the two connector holding pieces 22b and 22c that are closed together is combined to form a connector housing hole may be employed.

また、図示例の光コネクタ用工具2では、コネクタホルダ部22の各コネクタ保持片22b、22cに形成したコネクタ収納用凹所22aは、光コネクタ3の角筒状のハウジング本体39aを収納するために角溝状になっているが、コネクタ収納用凹所の形状は、光コネクタの内の、一対のコネクタ保持片に挟み込む部位の断面形状(例えば、光コネクタのハウジング本体の断面形状)によって、適宜変更可能であることは言うまでも無い。例えば、円筒状のストップリングを一対のコネクタ保持片の間に挟み込む場合は、ストップリングの外周面に沿った円弧状内面を有する、丸溝(断面半円状の溝)を採用できる。   In the illustrated optical connector tool 2, the connector housing recess 22 a formed in each connector holding piece 22 b, 22 c of the connector holder portion 22 accommodates the rectangular tubular housing body 39 a of the optical connector 3. However, the shape of the recess for housing the connector depends on the cross-sectional shape of the portion of the optical connector sandwiched between the pair of connector holding pieces (for example, the cross-sectional shape of the housing body of the optical connector). Needless to say, it can be changed as appropriate. For example, when a cylindrical stop ring is sandwiched between a pair of connector holding pieces, a round groove (a groove having a semicircular cross section) having an arcuate inner surface along the outer peripheral surface of the stop ring can be employed.

(コネクタカバー部)
図2等において、符号29は、コネクタカバー部を示す。
この光コネクタ用工具2において、コネクタカバー部29は、介挿部材駆動部23の周方向において前記コネクタホルダ部22を介して両側に配置され、それぞれ第2可動端部242から介挿部材駆動部23の外側に向けて突設された一対の突片291、292によって構成されている。
一対の突片291、292は、補助片側突片291(後述)と、補助片引留壁292とである。
補助片側突片291と補助片引留壁292とは、コネクタホルダ部22のホルダ収納溝22sを介して、コネクタホルダ部22の両側に配置されている。補助片側突片291と補助片引留壁292とは、第2可動端部242の一対の可動端部分割体242aに振り分け配置されている。
(Connector cover)
In FIG. 2 etc., the code | symbol 29 shows a connector cover part.
In the optical connector tool 2, the connector cover portions 29 are arranged on both sides via the connector holder portion 22 in the circumferential direction of the insertion member driving portion 23, and are respectively inserted from the second movable end portion 242 to the insertion member driving portion. 23, a pair of projecting pieces 291 and 292 projecting toward the outside.
The pair of protruding pieces 291 and 292 are an auxiliary piece side protruding piece 291 (described later) and an auxiliary piece retaining wall 292.
The auxiliary piece-side protruding piece 291 and the auxiliary piece retaining wall 292 are disposed on both sides of the connector holder portion 22 via the holder storage groove 22 s of the connector holder portion 22. The auxiliary piece-side protruding piece 291 and the auxiliary piece retaining wall 292 are arranged and distributed on the pair of movable end divided bodies 242 a of the second movable end 242.

補助片側突片291は、第2可動端部242の一対の可動端部分割体242aの一方から介挿部材駆動部23の外側に向けて突設された突壁状の補助片支持壁293と、この補助片支持壁293の第2可動端部242からの突出先端から延出された細長板状の押し込み補助片294と、補助片支持壁293の第2可動端部242からの突出先端と押し込み補助片294との間に形成されているヒンジ部295とを具備して構成されている。
押し込み補助片294は、補助片支持壁293の第2可動端部242からの突出先端から、ヒンジ部295を介して、延出されている。この押し込み補助片294は、ヒンジ部295を中心として、介挿部材駆動部23の中心軸線に平行な回転軸線回りに回転可能である。
前記ヒンジ部295は、具体的には、押し込み補助片294と補助片支持壁293との間の成形樹脂を薄くして曲がりやすくした薄肉部であり、押し込み補助片294と補助片支持壁293とは、このヒンジ部295を介して一体に繋がっている。但し、ヒンジ部295としては、薄肉部に限定されず、例えば、ピン枢軸を介して、押し込み補助片294を補助片支持壁293に対して回転可能に連結する構造のものであっても良い。
The auxiliary one-side protruding piece 291 includes a protruding wall-like auxiliary piece supporting wall 293 that protrudes from one of the pair of movable end divided bodies 242a of the second movable end 242 toward the outside of the insertion member driving unit 23. The auxiliary piece supporting wall 293 has an elongated plate-like pushing auxiliary piece 294 extending from the protruding tip from the second movable end 242; and the protruding tip of the auxiliary piece supporting wall 293 from the second movable end 242; A hinge portion 295 formed between the push-in assisting piece 294 is provided.
The push-in auxiliary piece 294 extends from the protruding tip of the auxiliary piece support wall 293 from the second movable end 242 via the hinge part 295. The pushing assisting piece 294 can rotate around a rotation axis parallel to the central axis of the insertion member driving unit 23 around the hinge 295.
Specifically, the hinge portion 295 is a thin-walled portion in which the molding resin between the push-in auxiliary piece 294 and the auxiliary piece support wall 293 is thinned to be easily bent, and the push-in auxiliary piece 294, the auxiliary piece support wall 293, and Are connected together via the hinge portion 295. However, the hinge portion 295 is not limited to a thin-walled portion, and may be, for example, a structure in which the push-in auxiliary piece 294 is rotatably connected to the auxiliary piece support wall 293 via a pin pivot.

押し込み補助片294は、ヒンジ部295を中心とする回転によって、コネクタホルダ部22の第2可動端部242からの突出先端側に押し当てるように配置できる。このとき、押し込み補助片294は、コネクタホルダ部22のコネクタ収納溝22sを跨いで、一対のコネクタ保持片22b、22cの第2可動端部242からの突出先端同士の間に架け渡された状態(架設状態)となる。
また、この押し込み補助片294は、ヒンジ部295を中心とする回転によって、前記架設状態から、前記コネクタホルダ部22から離隔するように回転できる。
つまり、押し込み補助片294は、コネクタホルダ部22の第2可動端部242からの突出先端(一対のコネクタ保持片22b、22cの第2可動端部242からの突出先端)に対して開閉可能である。また、この開閉により、一対のコネクタ保持片22b、22cの間のコネクタ収納溝22sを開閉できる。
The pushing assisting piece 294 can be disposed so as to be pressed against the protruding tip side of the connector holder part 22 from the second movable end part 242 by rotation about the hinge part 295. At this time, the push-in assisting piece 294 spans between the connector housing grooves 22s of the connector holder portion 22 and is bridged between the protruding tips from the second movable end portion 242 of the pair of connector holding pieces 22b and 22c. (Erecting state).
Further, the pushing assisting piece 294 can be rotated so as to be separated from the connector holder portion 22 from the installation state by rotation around the hinge portion 295.
That is, the push-in assisting piece 294 can be opened and closed with respect to the protruding tip from the second movable end 242 of the connector holder 22 (the protruding tip from the second movable end 242 of the pair of connector holding pieces 22b and 22c). is there. Further, by this opening and closing, the connector housing groove 22s between the pair of connector holding pieces 22b and 22c can be opened and closed.

補助片引留壁292の第2可動端部242からの突出先端には、前記押し込み補助片294の先端(補助片支持壁293からの突出先端)に突設された小突起である嵌合突起294aが圧入して嵌め込まれる嵌合凹部292aが形成されている。
押し込み補助片294は、一対のコネクタ保持片22b、22c間に架設状態にしたときに、先端の嵌合突起294aを嵌合凹部292aに嵌め込むことで、補助片引留壁292の第2可動端部242からの突出先端に引き留められる。
これにより、コネクタカバー部29が、補助片支持壁293と、押し込み補助片294と、補助片引留壁292とからなる門形の枠状体に組み立てられる。
嵌合凹部292aは、押し込み補助片294の先端を第2可動端部242に引き留める補助片引留部として機能する。
また、補助片引留壁292自体も、補助片引留部として機能するものと言える。
A fitting protrusion 294a, which is a small protrusion projecting from the tip of the push-in auxiliary piece 294 (protruding tip from the auxiliary piece support wall 293), is provided at the protruding tip of the auxiliary piece retaining wall 292 from the second movable end 242. Is formed with a fitting recess 292a into which is fitted.
When the auxiliary pushing piece 294 is installed between the pair of connector holding pieces 22b, 22c, the fitting protrusion 294a at the tip is fitted into the fitting recess 292a, whereby the second movable end of the auxiliary piece retaining wall 292 is inserted. It is fastened to the protruding tip from the portion 242.
As a result, the connector cover 29 is assembled into a gate-shaped frame-like body composed of the auxiliary piece support wall 293, the pushing auxiliary piece 294, and the auxiliary piece retaining wall 292.
The fitting recess 292 a functions as an auxiliary piece retaining portion that holds the tip of the pushing auxiliary piece 294 to the second movable end 242.
Further, it can be said that the auxiliary piece retaining wall 292 itself also functions as an auxiliary piece retaining portion.

枠状体に組み立てたコネクタカバー部29は、コネクタホルダ部22を取り囲み、コネクタホルダ部22の一対のコネクタ保持片22b、22cの第2可動端部242からの突出先端同士間に架設状態に配置された押し込み補助片294によって、コネクタ収納溝22sに収納してコネクタホルダ部22に保持した光コネクタ3が、コネクタ収納溝22sの、一対のコネクタ保持片22b、22cの第2可動端部242からの突出先端同士間に開口する開口部から脱落ことを防止する機能を果たす。   The connector cover portion 29 assembled into a frame-like body surrounds the connector holder portion 22 and is arranged in a erected state between the protruding tips from the second movable end portion 242 of the pair of connector holding pieces 22b and 22c of the connector holder portion 22. The optical connector 3 housed in the connector housing groove 22s and held in the connector holder portion 22 by the pushed auxiliary piece 294 is removed from the second movable end portion 242 of the pair of connector holding pieces 22b and 22c in the connector housing groove 22s. It functions to prevent falling off from the opening that opens between the protruding tips.

押し込み補助片294の嵌合突起294aは、ヒンジ部295を中心とする回転によって、嵌合凹部292aに、コネクタホルダ部22の、介挿部材駆動部23とは反対の側から、圧入して嵌め込まれる。
嵌合凹部292aに嵌合突起294aを嵌め込んだ押し込み補助片294は、補助片引留壁292先端から離隔させる方向に強制的に回転させるなどして、嵌合凹部292aから嵌合突起294aを抜き出さない限り、架設状態が維持される。
The fitting protrusion 294a of the pushing assisting piece 294 is press-fitted and fitted into the fitting recess 292a from the side opposite to the insertion member driving portion 23 of the connector holder portion 22 by rotation about the hinge portion 295. It is.
The push-in auxiliary piece 294 in which the fitting protrusion 294a is fitted into the fitting recess 292a is forced to rotate in a direction away from the tip of the auxiliary piece retaining wall 292, and the fitting protrusion 294a is removed from the fitting recess 292a. As long as it is not put out, the installation state is maintained.

嵌合凹部292aに嵌め込まれた嵌合突起294aは、例えば、補助片支持壁293と補助片引留壁292との間が強制的に押し広げられたときなど、押し込み補助片294を、嵌合突起294aが嵌め込まれている補助片引留壁292から補助片支持壁291の側へ向けて引き抜く方向の力によっても、嵌合凹部292aから抜き出すことができる。   The fitting protrusion 294a fitted into the fitting recess 292a is formed by, for example, pushing the auxiliary pushing piece 294 into the fitting protrusion when the space between the auxiliary piece support wall 293 and the auxiliary piece retaining wall 292 is forcibly expanded. It can also be extracted from the fitting recess 292a by the force in the direction of pulling out from the auxiliary piece retaining wall 292 into which the 294a is fitted toward the auxiliary piece support wall 291.

なお、この実施形態の光コネクタ用工具2のコネクタカバー部29の補助片支持壁293と補助片引留壁292とは、それぞれ、橋絡部293a、292bを介して、第2可動端部242の一対の可動端部分割体242aに振り分け配置されている一対のコネクタ保持片22b、22cと連結されている。
つまり、第2可動端部242の一対の可動端部分割体242aの一方に突設されている補助片支持壁293とコネクタ保持片22bとは、橋絡部293aを介して繋がっており、一体化されている。
また、他方の可動端部分割体242aに突設されている補助片引留壁292とコネクタ保持片22cとは、橋絡部292bを介して繋がっており、一体化されている。
この光コネクタ用工具2では、補助片支持壁293はコネクタ保持片22bの一部、補助片引留壁292はコネクタ保持片22cの一部になっている。押し込み補助片294は、換言すれば、コネクタ保持片22bからヒンジ部295を介して延出されている。
補助片支持壁293がコネクタ保持片22bの一部、補助片引留壁292がコネクタ保持片22cの一部になっている光コネクタ用工具2の構成では、例えば、コネクタ収納溝22sへの光コネクタ3の挿脱時などに、一対のコネクタ保持片22b、22cの間を開閉するときには、補助片支持壁293及び補助片引留壁292も、一対のコネクタ保持片22b、22cと一体的に開閉される。
Note that the auxiliary piece support wall 293 and the auxiliary piece retaining wall 292 of the connector cover portion 29 of the optical connector tool 2 of this embodiment are connected to the second movable end portion 242 via the bridging portions 293a and 292b, respectively. It is connected to a pair of connector holding pieces 22b and 22c that are distributed and arranged in a pair of movable end divided bodies 242a.
That is, the auxiliary piece support wall 293 protruding from one of the pair of movable end portion divided bodies 242a of the second movable end portion 242 and the connector holding piece 22b are connected via the bridging portion 293a. It has become.
Further, the auxiliary piece retaining wall 292 and the connector holding piece 22c projecting from the other movable end divided body 242a are connected via a bridging portion 292b and integrated.
In this optical connector tool 2, the auxiliary piece support wall 293 is a part of the connector holding piece 22b, and the auxiliary piece retaining wall 292 is a part of the connector holding piece 22c. In other words, the push-in assisting piece 294 extends from the connector holding piece 22b via the hinge portion 295.
In the configuration of the optical connector tool 2 in which the auxiliary piece support wall 293 is a part of the connector holding piece 22b and the auxiliary piece retaining wall 292 is a part of the connector holding piece 22c, for example, an optical connector to the connector housing groove 22s is used. When opening and closing between the pair of connector holding pieces 22b and 22c when inserting / removing 3 or the like, the auxiliary piece support wall 293 and the auxiliary piece retaining wall 292 are also opened and closed integrally with the pair of connector holding pieces 22b and 22c. The

(工具付き光コネクタの組み立て)
光コネクタ用工具2に光コネクタ3を組み付けて、工具付き光コネクタ1を組み立てるには、まず、コネクタホルダ部22のコネクタ収納溝22sに光コネクタ3を収納して、一対のコネクタ保持片22b、22cの間に保持させる。
このとき、光コネクタ3を一対のコネクタ保持片22b、22cの間に押し込む作業に、押し込み補助片294を利用できる。つまり、押し込み補助片294をコネクタ保持片22bに対して開放状態にしておき、光コネクタ3を、一対のコネクタ保持片22b,22cの間に配置した後、押し込み補助片294を、コネクタ保持片22b(詳細には補助片引留壁292)の第2可動端部242からの突出先端に向けて回転させ(ヒンジ部295を中心とする回転)ることで、押し込み補助片294によって、光コネクタ3をコネクタホルダ部22の一対のコネクタ保持片22b、22cの間に押し込むことができる。
このとき、光コネクタ用工具2の使用者は、光コネクタ3を直接手指で押圧する必要が無く、コネクタホルダ部22の一対のコネクタ保持片22b、22cの間への光コネクタ3の押し込み作業を効率良く行える。
(Assembly of optical connector with tool)
To assemble the optical connector 1 by assembling the optical connector 3 into the optical connector tool 2, first, the optical connector 3 is stored in the connector storage groove 22 s of the connector holder 22, and a pair of connector holding pieces 22 b, 22c.
At this time, the pushing auxiliary piece 294 can be used for pushing the optical connector 3 between the pair of connector holding pieces 22b and 22c. That is, the pushing assisting piece 294 is opened with respect to the connector holding piece 22b, and after the optical connector 3 is disposed between the pair of connector holding pieces 22b and 22c, the pushing assisting piece 294 is moved to the connector holding piece 22b. (Specifically, the auxiliary piece retaining wall 292) is rotated toward the projecting tip from the second movable end portion 242 (rotation about the hinge portion 295), whereby the optical connector 3 is moved by the pushing auxiliary piece 294. The connector holder 22 can be pushed between the pair of connector holding pieces 22b and 22c.
At this time, the user of the optical connector tool 2 does not need to press the optical connector 3 directly with fingers, and pushes the optical connector 3 between the pair of connector holding pieces 22b and 22c of the connector holder portion 22. It can be done efficiently.

押し込み補助片294の先端がコネクタ保持片22bに到達したら、押し込み補助片294の先端の嵌合突起294aを、コネクタ保持片22bの嵌合凹部292aに圧入して嵌め込んで、押し込み補助片294を一対のコネクタ保持片22b、22cの間に架設状態にし、コネクタホルダ部29を門形の枠状体に組み立てる。   When the tip of the pushing assisting piece 294 reaches the connector holding piece 22b, the fitting protrusion 294a at the tip of the pushing assisting piece 294 is press-fitted into the fitting recess 292a of the connector holding piece 22b, and the pushing assisting piece 294 is inserted. The connector holder 29 is assembled into a gate-shaped frame-like body by placing it between the pair of connector holding pieces 22b and 22c.

次いで、図6に示すように、押し込み補助片294と第1可動端部241とを互いに接近させるように、光コネクタ用工具2に上下方向の圧縮力(図6の矢印P2)を作用させて介挿部材駆動部23を変形させ、介挿部材21の先端部21aを、ハウジング39の差込口39cから光コネクタ3のクランプ部32の一対の素子31c、321間に割り込ませる。
これにより、工具付き光コネクタ1が組み立てられる。
Next, as shown in FIG. 6, a vertical compression force (arrow P <b> 2 in FIG. 6) is applied to the optical connector tool 2 so that the push-in assisting piece 294 and the first movable end 241 are close to each other. The insertion member drive unit 23 is deformed, and the distal end portion 21 a of the insertion member 21 is inserted between the pair of elements 31 c and 321 of the clamp portion 32 of the optical connector 3 from the insertion port 39 c of the housing 39.
Thereby, the optical connector 1 with a tool is assembled.

図6に示すように、光コネクタ3を、コネクタホルダ部22の一対のコネクタ保持片22b、22cの間に押し込んだ直後は、光コネクタ3のクランプ部32の素子31c、321間に介挿部材21の先端部21aが殆ど(あるいは全く)入り込まないため、クランプ部32の素子31c、321によって介挿部材21が押圧されることで、第1可動端部241が第2可動端部242からの距離が増大するように押し動かされることになる。
次いで、図6矢印P2のように、押し込み補助片294と第1可動端部241とを互いに接近させるように、光コネクタ用工具2に圧縮力を作用させて介挿部材駆動部23を変形させ(図6想像線)、介挿部材21の先端部21aを光コネクタ3のクランプ部32の一対の素子31c、321間に割り込ませると、図5の状態となる。このとき、第1可動端部241と第2可動端部242との間の距離は、図6に比べて縮小することになる。
As shown in FIG. 6, immediately after the optical connector 3 is pushed between the pair of connector holding pieces 22 b and 22 c of the connector holder portion 22, an insertion member is interposed between the elements 31 c and 321 of the clamp portion 32 of the optical connector 3. Since the tip 21a of the 21 hardly (or at all) enters, the insertion member 21 is pressed by the elements 31c and 321 of the clamp 32, so that the first movable end 241 is separated from the second movable end 242. It will be pushed to increase the distance.
Next, as shown in the arrow P2 in FIG. 6, the insertion member drive unit 23 is deformed by applying a compressive force to the optical connector tool 2 so that the push-in assisting piece 294 and the first movable end 241 are close to each other. (Imaginary line in FIG. 6) When the tip 21a of the insertion member 21 is inserted between the pair of elements 31c and 321 of the clamp part 32 of the optical connector 3, the state shown in FIG. At this time, the distance between the first movable end 241 and the second movable end 242 is reduced as compared with FIG.

図示例の光コネクタ用工具2は、使用者が片手の手指で把持できる大きさにしてある。例えば、光コネクタ用工具2を把持した手指で、一対のコネクタ保持片22b、22c間に架設状態になっている押し込み補助片294と第1可動端部241とを互いに接近させるように握ることで、前記圧縮力P2を作用させることができる。
このとき、押し込み補助片294を介して光コネクタ3を押圧することになるので、光コネクタ用工具2の使用者が、手指で直接光コネクタ3を介挿部材21に向けて押し込む場合に比べて、格段に、光コネクタ3を押しやすいから、光コネクタ3のクランプ部32の素子31c、321間に介挿部材21を割り込ませる作業を効率良く行える。
The optical connector tool 2 in the illustrated example is sized so that the user can hold it with a finger of one hand. For example, by grasping the push assisting piece 294 and the first movable end 241 that are installed between the pair of connector holding pieces 22b and 22c with a finger that holds the optical connector tool 2 so as to approach each other. The compression force P2 can be applied.
At this time, the optical connector 3 is pressed through the push-in auxiliary piece 294, so that the user of the optical connector tool 2 pushes the optical connector 3 directly toward the insertion member 21 with fingers. Since the optical connector 3 is remarkably easy to push, the work of inserting the insertion member 21 between the elements 31c and 321 of the clamp portion 32 of the optical connector 3 can be performed efficiently.

押し込み補助片294と第1可動端部241との間に前記圧縮力P2が与えられたとき、一対のコネクタ保持片22b、22cの、コネクタ収納用凹所22aを介して第2可動端部242とは反対の側に位置する部分が、介挿部材21から光コネクタ3に作用する押圧力を支圧(換言すれば、光コネクタ3を介挿部材21に対して押圧)する支圧部22fとして機能する。
具体的には、前記両コネクタ保持片22b、22cの支圧部22fが、コネクタ収納溝22sに収納した光コネクタ3のハウジング本体39aに、第2可動端部242とは反対の側から当接されて、光コネクタ3が介挿部材21からの押圧力によって押し動かされることを規制するストッパとして機能する。これにより、押し込み補助片294と第1可動端部241とを互いに接近させる圧縮力が、支圧部22fと第1可動端部241との間で、光コネクタ3のクランプ部32の素子31c、321間に介挿部材21を割り込ませる押し込み力として作用することになる。
When the compression force P2 is applied between the pushing assisting piece 294 and the first movable end 241, the second movable end 242 via the connector housing recess 22 a of the pair of connector holding pieces 22 b and 22 c. The portion located on the opposite side from the insertion member 21 supports the pressing force acting on the optical connector 3 from the insertion member 21 (in other words, presses the optical connector 3 against the insertion member 21). Function as.
Specifically, the pressure supporting portions 22f of the connector holding pieces 22b and 22c abut on the housing main body 39a of the optical connector 3 housed in the connector housing groove 22s from the side opposite to the second movable end portion 242. Thus, the optical connector 3 functions as a stopper that restricts the optical connector 3 from being pushed and moved by the pressing force from the insertion member 21. As a result, the compressive force that causes the pushing assisting piece 294 and the first movable end 241 to approach each other is between the pressure-supporting portion 22f and the first movable end 241, the element 31c of the clamp portion 32 of the optical connector 3; This acts as a pushing force for interrupting the insertion member 21 between 321.

コネクタホルダ部29を枠状体に組み立てると、コネクタ保持片22bの嵌合凹部292aに嵌合された、押し込み補助片294の嵌合突起294aの、嵌合凹部292aからの引き抜き抵抗によって、コネクタホルダ部22の弾性変形可能な一対のコネクタ保持片22b、22cの間(具体的には、コネクタ収納溝22s)が拡張しないように引き留められ、光コネクタ3(詳細にはハウジング本体39a)がコネクタ収納溝22sに嵌り込んだ状態が維持される。このため、コネクタ収納溝22sに光コネクタ3を収納した後に、押し込み補助片294と第1可動端部241とを互いに接近させるように圧縮力を作用させて、介挿部材21の先端部21aを、光コネクタ3のクランプ部32の一対の素子31c、321間に割り込ませる作業を開始するまでに、光コネクタ3の位置ずれやコネクタ収納溝22sからの脱落といった不都合を生じにくく、コネクタ収納溝22sに光コネクタ3を収納してから、光コネクタ3のクランプ部32の一対の素子31c、321間に介挿部材21の先端部21aを割り込ませる作業に円滑に移行できる。   When the connector holder portion 29 is assembled into a frame-like body, the connector holder 29 is pulled out by the pull-out resistance from the fitting recess 292a of the fitting protrusion 294a of the push-in auxiliary piece 294 fitted into the fitting recess 292a of the connector holding piece 22b. Between the pair of elastically deformable connector holding pieces 22b and 22c of the portion 22 (specifically, the connector housing groove 22s) is secured so as not to expand, and the optical connector 3 (specifically, the housing main body 39a) is housed in the connector. The state fitted in the groove 22s is maintained. For this reason, after housing the optical connector 3 in the connector housing groove 22s, a compression force is applied so that the push-in assisting piece 294 and the first movable end 241 approach each other, so that the distal end portion 21a of the insertion member 21 is moved. Until the start of the operation of interrupting between the pair of elements 31c and 321 of the clamp portion 32 of the optical connector 3, it is difficult to cause inconveniences such as positional displacement of the optical connector 3 and dropping from the connector housing groove 22s, and the connector housing groove 22s. After the optical connector 3 is housed in the optical connector 3, it is possible to smoothly shift to the operation of inserting the distal end portion 21 a of the insertion member 21 between the pair of elements 31 c and 321 of the clamp portion 32 of the optical connector 3.

押し込み補助片294先端を補助片引留壁292の先端に引き留めて枠状に組み立てたコネクタカバー部29は、コネクタホルダ部22に保持した光コネクタ3を、この光コネクタ用工具2の使用者が不用意に手指で触れたり、衝突物の衝突等によって、位置ずれや傾斜を生じさせてしまうことを防止する保護カバーとしても機能する。このため、例えば、光接続箱内部や、建物の壁に形成した穴内、などの狭隘の作業スペースでの作業、足場が悪い場所での作業も効率良く行える。   The connector cover portion 29 assembled in a frame shape by holding the tip of the push-in auxiliary piece 294 to the tip of the auxiliary piece retaining wall 292 has the optical connector 3 held by the connector holder portion 22 unnoticeable by the user of the optical connector tool 2. It also functions as a protective cover that prevents a position shift or tilt from being caused by touching with a finger or a collision of a colliding object. For this reason, for example, work in a narrow work space such as the inside of an optical junction box or in a hole formed in the wall of a building, and work in a place where the scaffolding is poor can be performed efficiently.

なお、押し込み補助片294先端を補助片引留壁292の先端に引き留めてコネクタカバー部29を枠状に組み立てたとき、押し込み補助片294と、コネクタ収納溝22sに収納されている光コネクタ3のラッチ39b(図示例の工具付き光コネクタ1においては、光コネクタ3のプラグフレーム33の弾性片33b)との間にはクリアランスが確保され、押し込み補助片294はラッチ39bに接触しない。
枠状に組み立てたコネクタカバー部29の押し込み補助片294がラッチ39bに接触しない構成であれば、コネクタカバー部29によってラッチ39bを確実に保護できる、といった利点がある。手指等がラッチ39bに触れて、光コネクタ用工具2に対する光コネクタ3の位置ずれを生じてしまう、といった不都合も防止できる。
光コネクタ3のクランプ部32の素子31c、321間に介挿部材21を割り込ませるために、一対のコネクタ保持片22b、22c間に架設状態になっている押し込み補助片294と第1可動端部241とを互いに接近させるように前記圧縮力P2を作用させる際に、圧縮力P2をラッチ39bに作用させないので、ラッチ39bを傷める心配が無い。
図示例の光コネクタ用工具2、光コネクタ3について説明すると、光コネクタ3のハウジング本体39aの側部に突設されている位置決め用当接部(図示例の光コネクタ3ではストッパ突起39d)を、コネクタ収納用凹所22a内のフレーム収納部22a1とストップリング収納部22a2との間の段差面22a3(図7参照)に突き当てて、光コネクタ3を光コネクタ用工具2に対して位置決めすると、ラッチ39bの内、プラグフレーム33の弾性片33bのプラグフレーム33からの突出先端33cよりも突出基端側の部分が、コネクタカバー部29を枠状に組み立てたときに一対のコネクタ保持片22b、22c間に架設状態となる押し込み補助片294に対応する位置に配置される。コネクタカバー部29を枠状に組み立てると、プラグフレーム33の弾性片33bのプラグフレーム33からの突出先端33cよりも突出基端側の部分が、一対のコネクタ保持片22b、22c間に架設状態となる押し込み補助片294によって外側から覆われるようになる。但し、プラグフレーム33の弾性片33bのプラグフレーム33からの突出先端33cよりも突出基端側の部分と、一対のコネクタ保持片22b、22c間に架設状態とした押し込み補助片294との間にはクリアランスが確保され、押し込み補助片294は弾性片33bに接触しない。また、ラッチ39bの内、弾性片33bのプラグフレーム33からの突出先端33cよりも突出基端側の部分、以外は、一対のコネクタ保持片22b、22c間に架設状態とした押し込み補助片294によって覆われない位置にあり、コネクタカバー部29を枠状に組み立てても、ラッチ39bと、一対のコネクタ保持片22b、22c間に架設状態とした押し込み補助片294との接触部分は発生しない。
When the connector cover 29 is assembled in a frame shape by holding the tip of the push-in auxiliary piece 294 to the tip of the auxiliary piece retaining wall 292, the latch of the push-in auxiliary piece 294 and the optical connector 3 housed in the connector housing groove 22s. Clearance is ensured between 39b (in the optical connector 1 with a tool of the illustrated example, the elastic piece 33b of the plug frame 33 of the optical connector 3), and the pushing assisting piece 294 does not contact the latch 39b.
If the pushing assisting piece 294 of the connector cover part 29 assembled in a frame shape is not in contact with the latch 39b, there is an advantage that the latch 39b can be reliably protected by the connector cover part 29. The inconvenience that the finger or the like touches the latch 39b and the optical connector 3 is displaced with respect to the optical connector tool 2 can be prevented.
In order to insert the insertion member 21 between the elements 31c and 321 of the clamp part 32 of the optical connector 3, the push auxiliary piece 294 and the first movable end part that are installed between the pair of connector holding pieces 22b and 22c. Since the compression force P2 is not applied to the latch 39b when the compression force P2 is applied so as to bring the 241 close to each other, there is no fear of damaging the latch 39b.
The optical connector tool 2 and the optical connector 3 in the illustrated example will be described. A positioning contact portion (a stopper projection 39d in the optical connector 3 in the illustrated example) protruding from the side of the housing main body 39a of the optical connector 3 is provided. When the optical connector 3 is positioned with respect to the optical connector tool 2 by abutting against the step surface 22a3 (see FIG. 7) between the frame storage portion 22a1 and the stop ring storage portion 22a2 in the connector storage recess 22a. Of the latch 39b, the portion of the elastic piece 33b of the plug frame 33 that is closer to the protruding proximal end than the protruding tip 33c from the plug frame 33 is a pair of connector holding pieces 22b when the connector cover 29 is assembled in a frame shape. , 22c is disposed at a position corresponding to the pushing assisting piece 294 that is in a erected state. When the connector cover 29 is assembled in a frame shape, the protruding proximal end portion of the elastic piece 33b of the plug frame 33 from the protruding distal end 33c from the plug frame 33 is placed between the pair of connector holding pieces 22b and 22c. The pushing assisting piece 294 is covered from the outside. However, between the portion of the elastic piece 33b of the plug frame 33 on the protruding proximal end side with respect to the protruding tip 33c from the plug frame 33 and the pushing auxiliary piece 294 constructed between the pair of connector holding pieces 22b and 22c. The clearance is secured, and the pushing assisting piece 294 does not contact the elastic piece 33b. Further, except for the portion of the latch 39b on the protruding proximal end side from the protruding tip 33c of the elastic piece 33b from the plug frame 33, a pushing assisting piece 294 is installed between the pair of connector holding pieces 22b and 22c. Even when the connector cover 29 is assembled in a frame shape, the contact portion between the latch 39b and the pushing assisting piece 294 installed between the pair of connector holding pieces 22b and 22c does not occur.

(光ファイバ先端への光コネクタの取り付け)
工具付き光コネクタ3を組み立てたら、光コネクタ3の後端側から、光コネクタ3のクランプ部32の一対の素子31c、321間の被覆収納用の溝325a、325bに光ファイバ4を挿入し、溝325a、325bから調心溝323に挿入した光ファイバ4先端の裸光ファイバ4aを、フェルール側光ファイバ38に突き合わせる。
(Attaching the optical connector to the tip of the optical fiber)
After assembling the optical connector 3 with the tool, the optical fiber 4 is inserted from the rear end side of the optical connector 3 into the grooves 325a and 325b for covering housing between the pair of elements 31c and 321 of the clamp portion 32 of the optical connector 3, The bare optical fiber 4 a at the tip of the optical fiber 4 inserted into the alignment groove 323 from the grooves 325 a and 325 b is butted against the ferrule side optical fiber 38.

次いで、図5に示すように、光ファイバ4とフェルール側光ファイバ38との突き合わせ接続状態を保ったまま、光コネクタ用工具2の介挿部材駆動部23に左右両側から側圧P1を作用させ、介挿部材駆動部23を変形させる。
これにより、介挿部材駆動部23の外側への介挿部材21の突出寸法(コネクタホルダ部22のコネクタ収納溝22sへの突出寸法)が減少していき、光コネクタ3のクランプ部32の一対の素子31c、321間に割り込ませてあった介挿部材21がクランプ部32から引き抜かれる。
Next, as shown in FIG. 5, while maintaining the butt connection state of the optical fiber 4 and the ferrule side optical fiber 38, the side pressure P1 is applied to the insertion member driving portion 23 of the optical connector tool 2 from both the left and right sides. The insertion member drive unit 23 is deformed.
Thereby, the protrusion dimension of the insertion member 21 to the outside of the insertion member drive part 23 (protrusion dimension of the connector holder part 22 to the connector housing groove 22s) is reduced, and a pair of the clamp part 32 of the optical connector 3 is reduced. The insertion member 21 that has been interrupted between the elements 31 c and 321 is pulled out from the clamp portion 32.

介挿部材駆動部23の第2可動端部242は、光コネクタ3のクランプ部32から介挿部材21を引き抜く際に、前記光コネクタ3(詳細には、ハウジング39。具体的にはハウジング本体39a)が押し当てられるストッパ部(ストッパ壁)として機能する。第2可動端部242が、介挿部材21に追従して光コネクタ3が移動することを規制するストッパ部として機能することで、素子31c、321間からの介挿部材21の引き抜きが円滑に実現される。   The second movable end portion 242 of the insertion member driving unit 23 is configured to remove the optical connector 3 (specifically, the housing 39. Specifically, the housing main body when the insertion member 21 is pulled out from the clamp portion 32 of the optical connector 3. 39a) functions as a stopper portion (stopper wall) against which it is pressed. The second movable end portion 242 functions as a stopper portion that regulates the movement of the optical connector 3 following the insertion member 21, so that the insertion member 21 can be smoothly pulled out between the elements 31c and 321. Realized.

クランプ部32から介挿部材21が引き抜かれれば、クランプ部32のバネ322の弾性によって、一対の素子31c、321間に、光ファイバ4とフェルール側光ファイバ38とがクランプされ、光ファイバ4とフェルール側光ファイバ38との突き合わせ接続状態が維持される。光ファイバ4の被覆部が、溝325a、325b内に収納されたまま、一対の素子31c、321間にしっかりとクランプ固定されることで、クランプ部32からの光ファイバ4の引き抜きが規制される。
これにより、光ファイバ4先端への光コネクタ3の取り付けが完了する。
When the insertion member 21 is pulled out from the clamp part 32, the optical fiber 4 and the ferrule side optical fiber 38 are clamped between the pair of elements 31 c and 321 by the elasticity of the spring 322 of the clamp part 32. The butt connection state with the ferrule side optical fiber 38 is maintained. The optical fiber 4 is firmly clamped between the pair of elements 31c and 321 while being covered in the grooves 325a and 325b, so that the extraction of the optical fiber 4 from the clamp part 32 is restricted. .
Thereby, the attachment of the optical connector 3 to the tip of the optical fiber 4 is completed.

この工具付き光コネクタ1では、介挿部材21Aがクランプ部32から引き抜かれた後に、介挿部材21Bがクランプ部32から引き抜かれる。このため、クランプ部32の内、光ファイバ4、38同士の接続点5(図17参照)をクランプする素子31c、321a間が閉じた後に、素子321aよりも接続点5からの位置が遠い素子31c、321b間が閉じられる。つまり、クランプ部32の素子31c、321間が、介挿部材21の引き抜きによって、光ファイバ4、38同士の接続点5に近い側から閉じられることになる(時差抜き去り)。この場合、突き合わせ接続時の突き当て力によって一対の光ファイバ4、38の一方又は両方に生じた撓みが、介挿部材21の引き抜きによるクランプ部32での光ファイバ4、38のクランプに伴って、クランプ部32の外に逃がされて、クランプ部32内に残留することを防止できるといった利点がある。このため、クランプ部32内に残留した光ファイバの曲げや撓みが光ファイバ4、38の光伝送特性や、光ファイバ4、38間の接続損失等の光学特性に影響を与えるといった不都合を防止できる。また、クランプ部にクランプした光ファイバの光学特性の安定維持、接続損失等の特性安定を図れ、光コネクタ3の長期信頼性を向上できる。   In this optical connector with a tool 1, the insertion member 21 </ b> B is extracted from the clamp portion 32 after the insertion member 21 </ b> A is extracted from the clamp portion 32. For this reason, after the element 31c and 321a which clamps the connection point 5 (refer FIG. 17) of the optical fibers 4 and 38 among the clamp parts 32 closes, the element from the connection point 5 is farther than the element 321a. The space between 31c and 321b is closed. That is, between the elements 31c and 321 of the clamp portion 32 is closed from the side close to the connection point 5 between the optical fibers 4 and 38 by pulling out the insertion member 21 (time difference removal). In this case, the bending produced in one or both of the pair of optical fibers 4 and 38 due to the abutting force at the time of butt connection is accompanied by the clamping of the optical fibers 4 and 38 in the clamp portion 32 due to the extraction of the insertion member 21. There is an advantage that it can be prevented from being released to the outside of the clamp part 32 and remaining in the clamp part 32. For this reason, it is possible to prevent the inconvenience that the bending or bending of the optical fiber remaining in the clamp portion 32 affects the optical transmission characteristics of the optical fibers 4 and 38 and the optical characteristics such as the connection loss between the optical fibers 4 and 38. . In addition, the optical characteristics of the optical fiber clamped to the clamp portion can be maintained stably, and characteristics such as connection loss can be stabilized, and the long-term reliability of the optical connector 3 can be improved.

突き合わせ接続時の突き当て力によって一対の光ファイバ4、38の一方又は両方に生じた撓みが、介挿部材の時差抜き去りによって逃がされて、クランプ部32内に残留することを防止できる作用効果は、蓋側素子321が2部品(蓋側素子321a,321b)になっている構成のクランプ部に限定されず、複数の介挿部材の時差抜き去りによって、接続点5からの距離が近い側から、順次、接続点からの距離が遠い部分が閉じられる、クランプ部であれば、得られる。例えば、蓋側素子が樹脂製の1部品になっているクランプ部を採用した場合などでも、上述の作用効果を得ることが可能である。   Action that can prevent the bending generated in one or both of the pair of optical fibers 4 and 38 due to the abutting force at the time of butt connection from being released by the time difference removal of the insertion member and remaining in the clamp portion 32. The effect is not limited to the clamp portion having a configuration in which the lid side element 321 is composed of two parts (lid side elements 321a and 321b), and the distance from the connection point 5 is short by removing the time difference of the plurality of insertion members. If it is a clamp part in which the part far from the connection point is sequentially closed from the side, it is obtained. For example, even when a clamp portion in which the lid side element is a single resin part is employed, the above-described effects can be obtained.

なお、図示例の光コネクタ用工具2の介挿部材駆動部23は、使用者が片手の手指を使って介挿部材駆動部23を握るようにすることで、介挿部材駆動部23に左右両側からの側圧P1を作用させて介挿部材駆動部23を変形させ、光コネクタ3からの介挿部材21の引き抜きを実現できるようにしてある。このため、光コネクタ用工具2は、操作性に優れており、光コネクタ3のクランプ部32の素子31c、321間からの介挿部材21の引き抜き作業を行える。   The insertion member drive unit 23 of the optical connector tool 2 in the illustrated example allows the user to hold the insertion member drive unit 23 with the fingers of one hand, so that The insertion member drive unit 23 is deformed by applying the side pressure P1 from both sides so that the insertion member 21 can be pulled out from the optical connector 3. For this reason, the optical connector tool 2 is excellent in operability, and can pull out the insertion member 21 from between the elements 31 c and 321 of the clamp portion 32 of the optical connector 3.

光コネクタ用工具2は、光コネクタ3を組み付けた工具付き光コネクタ1の状態で現場等に供給することができるが、これに限定されず、光コネクタ3から分離した状態で現場等に供給して、必要に応じて光コネクタ3に組み付けて、光ファイバ先端への光コネクタ3の組み立てに利用することも可能である。
光コネクタ用工具2は、すでに光ファイバ先端に組み立てられている光コネクタに組み付けて、光コネクタを光ファイバから離脱させる作業等にも利用できる。
現場等にて工具付き光コネクタ1から光コネクタを離脱して得た光コネクタ用工具2を、工具付き光コネクタ1の組み立てや、光コネクタを光ファイバから離脱させる作業に利用できることも言うまでも無い。
The optical connector tool 2 can be supplied to the site or the like in the state of the optical connector 1 with the tool to which the optical connector 3 is assembled, but is not limited to this, and is supplied to the site or the like in a state separated from the optical connector 3. The optical connector 3 can be assembled to the optical connector 3 as necessary and used for assembling the optical connector 3 to the tip of the optical fiber.
The optical connector tool 2 can be used for an operation of assembling an optical connector already assembled at the tip of the optical fiber and removing the optical connector from the optical fiber.
It goes without saying that the optical connector tool 2 obtained by detaching the optical connector from the optical connector 1 with a tool in the field can be used for assembling the optical connector 1 with a tool or for removing the optical connector from the optical fiber. No.

(コネクタホルダ部、コネクタカバー部の開放)
ところで、図15に示すように、図示例の工具付き光コネクタ1の場合、左右両側から側圧P1(図5参照)によって介挿部材駆動部23を変形していくことで、コネクタホルダ部22の一対のコネクタ保持片22b、22cを自動的に開放できる。
また、コネクタホルダ部22のコネクタ保持片22b(他方のコネクタ保持片)の嵌合凹部292aへの嵌合突起294aの嵌め込みによって、一対のコネクタ保持片22b、22c間に架設状態になっている押し込み補助片294の嵌合突起294aが、介挿部材駆動部23の変形によって、嵌合凹所293から抜き出されて、コネクタ保持片22bに対する押し込み補助片294の開放が自動的に実現される。
このため、コネクタカバー部29が枠状に組み立てられている状態の工具付き光コネクタ1の操作(左右両側から側圧によって介挿部材駆動部23を変形していくこと)によって、光ファイバ4先端への光コネクタ3の取り付け作業を行った場合に、取り付け作業の完了後の光コネクタ3の取り出しを簡単に行える。
(Open connector holder and connector cover)
By the way, as shown in FIG. 15, in the case of the optical connector 1 with a tool of the example of illustration, by deform | transforming the insertion member drive part 23 by the side pressure P1 (refer FIG. 5) from both right and left sides, The pair of connector holding pieces 22b and 22c can be automatically opened.
In addition, the push-in that is erected between the pair of connector holding pieces 22b and 22c by fitting the fitting protrusion 294a into the fitting recess 292a of the connector holding piece 22b (the other connector holding piece) of the connector holder portion 22 The fitting protrusion 294a of the auxiliary piece 294 is extracted from the fitting recess 293 by the deformation of the insertion member driving unit 23, and the pushing of the pushing auxiliary piece 294 to the connector holding piece 22b is automatically realized.
For this reason, by operating the optical connector 1 with a tool in a state in which the connector cover 29 is assembled in a frame shape (deforming the insertion member driving unit 23 by side pressure from both the left and right sides), the tip of the optical fiber 4 is moved. When the optical connector 3 is attached, the optical connector 3 can be easily taken out after the attachment operation is completed.

前記介挿部材駆動部23は、左右両側から側圧が与えられたときに、ヒンジ部27である薄肉部が変形するが、連結プレート部26a〜26c及び第1可動端部241は変形しない。第1可動端部241は、ベース壁部241aに一体に形成されているブロック状の介挿部材係合部243の存在により強度が確保されており、変形しない。
しかし、第2可動端部242は、全体として、リング状の介挿部材駆動部23の外側に膨らむように撓み変形(曲げ変形)する。
詳細には、図15に示すように、一対の可動端部分割体242aの間を橋絡する橋絡部242bが、リング状の介挿部材駆動部23の外側に膨らむように湾曲変形し、この橋絡部242bの両側の一対の可動端部分割体242aが、該可動端部分割体242aと連結壁部25a、25bとの間に存在するヒンジ部27Aの側よりも橋絡部242b側が介挿部材駆動部23の外側となるように、向きが変わっていく。
In the insertion member driving unit 23, when a lateral pressure is applied from both the left and right sides, the thin portion which is the hinge portion 27 is deformed, but the connecting plate portions 26a to 26c and the first movable end portion 241 are not deformed. The first movable end portion 241 has a sufficient strength due to the presence of the block-shaped insertion member engaging portion 243 formed integrally with the base wall portion 241a, and does not deform.
However, the second movable end portion 242 is bent and deformed (bend deformation) so as to swell outside the ring-shaped insertion member drive unit 23 as a whole.
Specifically, as shown in FIG. 15, the bridge portion 242b that bridges between the pair of movable end portion divided bodies 242a is curved and deformed so as to swell outside the ring-shaped insertion member drive portion 23, The pair of movable end divided bodies 242a on both sides of the bridging portion 242b are arranged so that the bridge portion 242b side is closer to the hinge portion 27A side between the movable end divided body 242a and the connecting wall portions 25a and 25b. The direction changes so as to be outside the insertion member driving unit 23.

コネクタホルダ部22の一対のコネクタ保持片22b、22cは、それぞれ可動端部分割体242aと一体になっているから、左右両側からの側圧によって第2可動端部242が変形(詳しくは、可動端部分割体242aの向きの変化)すると、一対のコネクタ保持片22b、22cには、可動端部分割体242aと連結壁部25a、25bとの間に存在するヒンジ部27を中心とする回転方向の変位力が作用する。この変位力は、一対のコネクタ保持片22b、22cの第2可動端部242からの突出先端間を押し開く力として作用する。
但し、一対のコネクタ保持片22b、22cは、補助片引留壁292の嵌合凹部292aに嵌合突起294aを嵌め込んだ押し込み補助片294が、補助片引留壁292から離脱されて補助片引留壁292に対して開放されるまでは、前記押し込み補助片294によって、互いの離隔距離が変動しないように引き留められる。また、橋絡部242bは、コネクタ保持片22bに引き留められている押し込み補助片294が、補助片引留壁292から離脱するまでは、殆ど(あるいは全く)変形しない。
Since the pair of connector holding pieces 22b and 22c of the connector holder portion 22 are respectively integrated with the movable end divided body 242a, the second movable end portion 242 is deformed by the side pressure from the left and right sides (specifically, the movable end portion 242a). (Change in direction of the divided member 242a) Then, the pair of connector holding pieces 22b and 22c are rotated in the rotation direction around the hinge portion 27 existing between the movable end divided member 242a and the connecting wall portions 25a and 25b. The displacement force acts. This displacement force acts as a force that pushes open between the protruding tips from the second movable end 242 of the pair of connector holding pieces 22b, 22c.
However, in the pair of connector holding pieces 22b and 22c, the pushing auxiliary piece 294 in which the fitting protrusion 294a is fitted into the fitting concave portion 292a of the auxiliary piece retaining wall 292 is detached from the auxiliary piece retaining wall 292, and the auxiliary piece retaining wall is removed. Until the opening 292 is released, the pushing assisting piece 294 is used to keep the separation distance from fluctuating. Further, the bridging portion 242b is hardly (or not) deformed until the pushing assisting piece 294 that is retained by the connector holding piece 22b is detached from the assisting piece retaining wall 292.

この光コネクタ用工具2では、左右両側からの側圧による介挿部材駆動部23の変形によって、工具付き光コネクタ1の光コネクタ3のクランプ部32の一対の素子31c、321間から介挿部材21が抜き去られた後に、押し込み補助片294がコネクタ保持片22bから引き抜かれるようになっている。つまり、光コネクタ3のクランプ部32の一対の素子31c、321間から介挿部材21が抜き去られた後、左右両側からの側圧による介挿部材駆動部23の変形がさらに進むことで、押し込み補助片294が、コネクタ保持片22bから引き抜かれる。
図15に示すように、左右両側からの側圧によって、「く」字状に屈曲した状態から直線状になった両側の連結壁部25a、25bの変形がさらに進行して、側圧作用部25pがリング状の介挿部材駆動部23の内側に入り込むようになると、両側からの側圧によって第2可動端部242(詳細には橋絡部242b)に曲げ応力が確実に与えられるようになり、押し込み補助片294がコネクタ保持片22bから確実に引き抜かれる。
光コネクタ3のクランプ部32の一対の素子31c、321間から介挿部材21が抜き去られた後に、押し込み補助片294がコネクタ保持片22bから引き抜かれるようにする、動作タイミングの調整は、例えば、補助片引留壁292の嵌合凹部292aに対する嵌合突起294aの引き抜き抵抗の設定等によって実現される。前記動作タイミングは、側圧作用部25pがリング状の介挿部材駆動部23の内側に入り込む前に、押し込み補助片294がコネクタ保持片22bから引き抜かれるようにしても良い。
コネクタ保持片22bに引き留められていた押し込み補助片294が、コネクタ保持片22bから引き抜かれたら、橋絡部242bに上述の撓み変形が生じ、一対のコネクタ保持片22b、22cの間(特に、第2可動端部242からの突出先端の間)が開く。
In this optical connector tool 2, the insertion member 21 is interposed between the pair of elements 31 c and 321 of the clamp portion 32 of the optical connector 3 of the optical connector 1 of the tool by deformation of the insertion member drive unit 23 due to lateral pressure from both the left and right sides. After being removed, the pushing assisting piece 294 is pulled out from the connector holding piece 22b. In other words, after the insertion member 21 is removed from between the pair of elements 31c and 321 of the clamp portion 32 of the optical connector 3, the insertion member driving portion 23 is further deformed by the side pressure from the left and right sides, and pushed in. The auxiliary piece 294 is pulled out from the connector holding piece 22b.
As shown in FIG. 15, due to the lateral pressure from both the left and right sides, the deformation of the connecting wall portions 25a, 25b on both sides, which has become a straight shape from the “B” -shaped bent state, further proceeds, and the lateral pressure acting portion 25p becomes When it enters the inside of the ring-shaped insertion member drive part 23, a bending stress is surely applied to the second movable end part 242 (specifically, the bridging part 242b) by the side pressure from both sides, and the pushing is performed. The auxiliary piece 294 is reliably pulled out from the connector holding piece 22b.
The adjustment of the operation timing so that the push-in auxiliary piece 294 is pulled out from the connector holding piece 22b after the insertion member 21 is removed from between the pair of elements 31c and 321 of the clamp portion 32 of the optical connector 3 is, for example, This is realized by setting the pull-out resistance of the fitting protrusion 294a with respect to the fitting recess 292a of the auxiliary piece retaining wall 292. The operation timing may be such that the pushing assisting piece 294 is pulled out from the connector holding piece 22b before the side pressure acting portion 25p enters the inside of the ring-shaped insertion member driving portion 23.
When the push-in assisting piece 294 that has been held by the connector holding piece 22b is pulled out from the connector holding piece 22b, the above-described bending deformation occurs in the bridging portion 242b, and between the pair of connector holding pieces 22b and 22c (in particular, the first 2 between the projecting tips from the movable end 242).

したがって、この光コネクタ用工具2では、光コネクタ3のクランプ部32の一対の素子31c、321間から介挿部材21が抜き去られた瞬間に、コネクタホルダ部22から光コネクタ3が不用意に脱落してしまう、といった不都合を防止できる。押し込み補助片294がコネクタ保持片22bから引き抜かれて枠状のコネクタカバー部29が開放されるまでは、コネクタホルダ部22からの光コネクタ3の脱落が防止される。
光コネクタ3のクランプ部32の一対の素子31c、321間から介挿部材21が抜き去られた後、介挿部材駆動部23を、敢えて、押し込み補助片294がコネクタ保持片22bから引き抜かれて枠状のコネクタカバー部29が開放されるまで変形させることで、はじめて、コネクタホルダ部22から光コネクタ3が取り出せるようになるので、光コネクタ3を不用意に落としてしまう、といった不都合を防止できる。
Therefore, in this optical connector tool 2, the optical connector 3 is inadvertently removed from the connector holder 22 at the moment when the insertion member 21 is removed from between the pair of elements 31 c and 321 of the clamp portion 32 of the optical connector 3. Inconveniences such as falling off can be prevented. The optical connector 3 is prevented from falling off from the connector holder portion 22 until the pushing auxiliary piece 294 is pulled out from the connector holding piece 22b and the frame-shaped connector cover portion 29 is opened.
After the insertion member 21 is removed from between the pair of elements 31c and 321 of the clamp portion 32 of the optical connector 3, the insertion member drive portion 23 is deliberately pulled out from the connector holding piece 22b. By deforming until the frame-shaped connector cover portion 29 is opened, the optical connector 3 can be taken out from the connector holder portion 22 for the first time, so that the inconvenience of inadvertently dropping the optical connector 3 can be prevented. .

なお、ヒンジ部27として採用した薄肉部は、介挿部材駆動部23に与えた側圧P1、P2によって弾性変形するようになっているため、側圧を解除すると、薄肉部の弾性によって、介挿部材駆動部23が側圧を作用させる前の形状、すなわち、図5実線に例示した形状に復帰する。したがって、再度、光コネクタをコネクタホルダ部に組み付けて、工具付き光コネクタを組み立てることに利用することも、容易である。   In addition, since the thin part employ | adopted as the hinge part 27 is elastically deformed by the side pressures P1 and P2 given to the insertion member drive part 23, when the side pressure is released, the insertion member is caused by the elasticity of the thin part. The drive unit 23 returns to the shape before the side pressure is applied, that is, the shape illustrated by the solid line in FIG. Therefore, it is easy to assemble the optical connector with the connector holder portion and assemble the optical connector with a tool again.

この光コネクタ用工具2は、押し込み補助片294の回転操作によって、一対のコネクタ保持片22b、22cの間への光コネクタ3の押し込みを、簡単に、効率良く行うことができる。しかも、一対のコネクタ保持片22b、22cの間への光コネクタ3の押し込み作業に使用した押し込み補助片294を、該押し込み補助片294が延出されているコネクタ保持片22cとコネクタ収納溝22sを介して対向配置されているコネクタ保持片22bの第2可動端部242からの突出先端に引き留めて、枠状のコネクタカバー部29を組み立てることで、押し込み補助片294によって、コネクタ収納溝22sからの光コネクタ3の脱落を防止したまま、また、光コネクタ3のクランプ部32の一対の素子31c、321間に介挿部材21の先端部21aを割り込ませる作業に移行して、光コネクタ用工具2への光コネクタ3の組み付け(工具付き光コネクタ1の組み立て)を効率良く行える。   The optical connector tool 2 can easily and efficiently push the optical connector 3 between the pair of connector holding pieces 22b and 22c by rotating the pushing auxiliary piece 294. In addition, the pushing auxiliary piece 294 used for pushing the optical connector 3 between the pair of connector holding pieces 22b and 22c is inserted into the connector holding piece 22c from which the pushing auxiliary piece 294 is extended and the connector receiving groove 22s. By assembling the frame-shaped connector cover part 29 by being fastened to the projecting tip from the second movable end part 242 of the connector holding piece 22b opposed to each other, the push-in auxiliary piece 294 allows the connector holding piece 22b to be While preventing the optical connector 3 from falling off, the optical connector tool 2 is shifted to the operation of inserting the distal end portion 21a of the insertion member 21 between the pair of elements 31c and 321 of the clamp portion 32 of the optical connector 3. Assembling of the optical connector 3 to the head (assembly of the optical connector 1 with a tool) can be performed efficiently.

さらに、介挿部材駆動部23を左右両側からの側圧によって変形させることで、光コネクタ3のクランプ部32の一対の素子31c、321間からの介挿部材21の引き抜きを簡単に行うことができ、さらに介挿部材駆動部23を変形させていくことで、枠状のコネクタカバー部29が自動的に開放し、コネクタホルダ部22の一対のコネクタ保持片22b、22cの間も自動的に開放することで、光コネクタ用工具2からの光コネクタ3の取り出しも、極めて簡単に行える。
また、構造が非常に簡単であるため安価で製造できることから、専用工具を用いる場合に比べて、大幅な低コスト化を実現できる。小型化も容易であるため、例えば、機器内等の狭隘な作業スペースでの使用にも有利である。
Furthermore, the insertion member 21 can be easily pulled out from between the pair of elements 31c and 321 of the clamp portion 32 of the optical connector 3 by deforming the insertion member drive portion 23 with the lateral pressure from both the left and right sides. Further, by deforming the insertion member driving portion 23, the frame-shaped connector cover portion 29 is automatically opened, and the pair of connector holding pieces 22b, 22c of the connector holder portion 22 is also automatically opened. As a result, the optical connector 3 can be taken out of the optical connector tool 2 very easily.
In addition, since the structure is very simple and can be manufactured at a low cost, a significant cost reduction can be realized as compared with the case of using a dedicated tool. Since it is easy to reduce the size, it is advantageous for use in a narrow work space such as in a device.

なお、本発明に係る光コネクタ用工具並びに工具付き光コネクタの具体的構成は、前述の実施形態に限定されず、各種変更が可能である。
ヒンジ部は、前述の薄肉部に限定されない。介挿部材駆動部としては、前述の実施形態に例示した工具付き光コネクタの一部としてコネクタホルダ部とともに樹脂で一体成形された構成でないもの、例えば、連結プレート部として機能する複数の板状部材と、この板状部材同士を枢着するピンとを含む複数の部材によってリング状に組み立てた構成等も採用できる。
また、一つの介挿部材駆動部に設けられる介挿部材の本数は2本に限定されず、3本以上であっても良い。
また、保持部の形状は、ハウジングの形状に応じて適宜変更できる。
The specific configurations of the optical connector tool and the optical connector with a tool according to the present invention are not limited to the above-described embodiments, and various modifications can be made.
The hinge part is not limited to the aforementioned thin part. The insertion member drive unit is not a structure integrally formed with resin as a part of the optical connector with tool exemplified in the above-described embodiment, for example, a plurality of plate-like members functioning as connecting plate portions And the structure etc. which were assembled in the ring shape by the some member containing the pin which pivotally attaches these plate-shaped members can also be employ | adopted.
Further, the number of insertion members provided in one insertion member driving unit is not limited to two, and may be three or more.
Further, the shape of the holding portion can be appropriately changed according to the shape of the housing.

また、本発明に適用される光コネクタ3(光コネクタプラグ)としては、単心用のものに限定されず、多心用のものも採用可能である。多心用の場合、クランプ部の素子に形成される調心溝が複数本である構成が採用される。   Further, the optical connector 3 (optical connector plug) applied to the present invention is not limited to a single-fiber connector, and a multi-fiber connector can also be used. In the case of multi-core, a configuration in which a plurality of aligning grooves formed in the element of the clamp part is employed.

本発明において、「光コネクタ」は、光ファイバ同士の突き合わせ接続(必ずしも、光ファイバ同士の端面同士を接触させる接続に限定されず、光ファイバ同士が微小な隙間を介して対面状態で光接続されることも含む)に用いられる光部品全般のことを指し、必ずしも、フェルールを用いたものに限定されない。本発明における光コネクタは、突き合わせ接続した光ファイバをクランプして、接続状態を維持するクランプ部を有するものであり、このようなクランプ部を有するものであれば、「光コネクタ」と称することができる。
例えば、断面C形あるいはコ字形のスリーブ状のバネの内側に、前記バネの弾性によって光ファイバをクランプする半割りの素子を収容した構成の、いわゆるメカニカルスプライス等も、光コネクタに含まれる。このメカニカルスプライスタイプの光コネクタとしては、半割りの素子の合わせ面に形成された位置決め溝を有し、両側から素子間に挿入された光ファイバ同士を、前記位置決め溝によって高精度に位置決めした状態で突き合わせ接続できる。また、突き合わせ接続した光ファイバの対は、バネの弾性によって素子間にクランプして接続状態を維持する。
このタイプの光コネクタとしては、例えば、図16、図17に例示したクランプ部付きフェルールからフェルールを省略したもの、すなわち、クランプ部32と同様の機構のものでも良い。
In the present invention, an “optical connector” is a butt connection between optical fibers (not necessarily limited to a connection in which end faces of optical fibers are in contact with each other, and optical fibers are optically connected in a face-to-face state through a minute gap. In general, it is not limited to those using ferrules. The optical connector in the present invention has a clamp portion that clamps the optical fiber that is butt-connected and maintains the connection state, and if it has such a clamp portion, it may be referred to as an “optical connector”. it can.
For example, a so-called mechanical splice having a configuration in which a half element for clamping an optical fiber by the elasticity of the spring is accommodated inside a C-shaped or U-shaped sleeve-like spring is also included in the optical connector. This mechanical splice type optical connector has positioning grooves formed on the mating surfaces of the half-divided elements, and optical fibers inserted between the elements from both sides are positioned with high accuracy by the positioning grooves. Can be butt-connected. Further, the pair of optical fibers that are butt-connected is clamped between the elements by the elasticity of the spring to maintain the connection state.
As this type of optical connector, for example, a ferrule from which the ferrule is omitted from the ferrule with a clamp portion illustrated in FIGS.

ここで、メカニカルスプライスタイプの光コネクタは、断面C形あるいはコ字形のスリーブ状のバネと、このバネの内側に収容した半割りの素子とによって構成されるクランプ部自体が光コネクタとして機能するものと言える。半割りの素子は、図16、図17に例示した光コネクタのクランプ部のように、半割りの素子の片方が複数に分割されている構成のものに限定されず、単純に、2部品からなる半割り構造のものであっても良い。但し、2部品からなる半割り構造の素子を有するクランプ部は、素子として素子自体の弾性変形(微小な撓み)が可能なもの(例えば樹脂製のもの)を採用して、クランプ部の軸方向において互いに異なる複数位置に割り込ませた介挿部材が順番に引き抜かれた際に(例えば、光ファイバ同士の接続点に近いものから、順次、遠いものが引き抜かれるようにする)、介挿部材が引き抜かれた箇所から順次素子間が閉じていく構成とする。   Here, the mechanical splice type optical connector has a C-shaped or U-shaped sleeve-like spring and a clamp portion itself that functions as an optical connector composed of a half element housed inside the spring. It can be said. The half-divided element is not limited to a configuration in which one of the half-divided elements is divided into a plurality of parts like the clamp portion of the optical connector illustrated in FIGS. A halved structure may be used. However, the clamp part having an element with a halved structure composed of two parts adopts an element capable of elastic deformation (small bending) of the element itself (for example, made of resin), and the axial direction of the clamp part When the insertion members interrupted at a plurality of positions different from each other are sequentially pulled out (for example, the ones that are far from the connection point between the optical fibers are sequentially pulled out), The elements are sequentially closed from the extracted part.

上述の実施形態では、補助片引留部として、押し込み片補助片先端の嵌合突起が嵌合される、補助片引留壁先端の嵌合凹部を例示したが、本発明に係る補助片引留部としては、介挿部材駆動部を左右両側からの側圧によって変形させ、光コネクタのクランプ部の一対の素子間から介挿部材を抜き去った後に、さらなる介挿部材駆動部の変形(第1可動端部と第2可動端部との間の距離が増大する変形)の進行によって、押し込み補助片が自動的に離脱される構成であれば良く、例えば弾性爪による係脱可能な係止を利用したもの等、様々な構成を採用できる。
また、上述の実施形態では、コネクタホルダ部22の一対のコネクタ保持片22b、22cに、コネクタカバー部29の補助片支持壁293、補助片引留壁292が橋絡部293a、292bを介して連結され一体化されている構成を例示したが、本発明に係る補助片支持壁293、補助片引留壁292としては、コネクタホルダ部22の一対のコネクタ保持片22b、22c自体を、補助片支持壁、補助片引留壁として機能させた構成、すなわち、橋絡部293a、292b及び該橋絡部293a、292bを介してコネクタ保持片22b、22cと連結した補助片支持壁293、補助片引留壁292を省略し、一方のコネクタ保持壁から押し込み補助片を延出させ、他方のコネクタ保持片の第2可動端部からの突出先端に補助片引留部(例えば、押し込み片補助片先端の嵌合突起が嵌合される嵌合凹部)を形成した構成も採用可能である。
In the above-described embodiment, as the auxiliary piece retaining portion, the fitting concave portion at the distal end of the auxiliary piece retaining wall in which the fitting protrusion at the distal end of the pushing piece auxiliary piece is fitted is illustrated, but the auxiliary piece retaining portion according to the present invention is illustrated. After the insertion member drive unit is deformed by lateral pressure from both the left and right sides and the insertion member is removed from between the pair of elements of the clamp portion of the optical connector, further deformation of the insertion member drive unit (first movable end) It is sufficient that the pushing assisting piece is automatically detached by the progress of the deformation in which the distance between the first portion and the second movable end portion is increased). Various configurations can be adopted.
In the above-described embodiment, the auxiliary piece support wall 293 and the auxiliary piece retaining wall 292 of the connector cover portion 29 are connected to the pair of connector holding pieces 22b and 22c of the connector holder portion 22 via the bridging portions 293a and 292b. However, as the auxiliary piece support wall 293 and the auxiliary piece retaining wall 292 according to the present invention, the pair of connector holding pieces 22b and 22c itself of the connector holder portion 22 are used as the auxiliary piece support wall. The structure functioning as the auxiliary piece retaining wall, that is, the auxiliary piece supporting wall 293 connected to the connector holding pieces 22b and 22c via the bridge portions 293a and 292b and the bridge portions 293a and 292b, and the auxiliary piece retaining wall 292 Is pushed out from one connector holding wall, and the auxiliary piece is extended from the second movable end of the other connector holding piece. Eg to configuration of forming the fitting recess) in which pushing pieces aids tip fitting projections are fitted may be adopted.

光ファイバ先端への光コネクタのコネクタ付けを簡便かつ迅速に行うこと等を目的として、各種光コネクタに適用可能である。また、装置、機器に組み込まれた既設の光コネクタ等に対しても、適用可能である。   The present invention can be applied to various optical connectors for the purpose of simply and quickly attaching an optical connector to the tip of an optical fiber. Further, the present invention can also be applied to an existing optical connector or the like incorporated in an apparatus or device.

本発明の一実施形態による工具付き光コネクタを示す分解斜視図である。It is a disassembled perspective view which shows the optical connector with a tool by one Embodiment of this invention. 図1の工具付き光コネクタの光コネクタ用工具を示す斜視図である。It is a perspective view which shows the tool for optical connectors of the optical connector with a tool of FIG. 図2の光コネクタ用工具を第1可動端部側から見た斜視図である。It is the perspective view which looked at the tool for optical connectors of FIG. 2 from the 1st movable end part side. (a)、(b)は、図2の光コネクタ用工具を示す側面図である。(A), (b) is a side view which shows the tool for optical connectors of FIG. 工具付き光コネクタ1の光コネクタを断面視して示した図である。It is the figure which showed the optical connector of the optical connector 1 with a tool by the cross-sectional view. 図1の光コネクタ用工具のコネクタホルダ部のコネクタ収納溝に光コネクタを収納した状態(光コネクタのクランプ部の一対の素子間に介挿部材を割り込ませる前)を模式的に示す側断面図である。1 is a side sectional view schematically showing a state in which an optical connector is housed in a connector housing groove of a connector holder portion of the optical connector tool of FIG. 1 (before an insertion member is interrupted between a pair of elements of a clamp portion of the optical connector). It is. 図1の工具付き光コネクタ及び光コネクタ用工具のコネクタホルダ部における光コネクタの収納状態を示す図である。It is a figure which shows the accommodation state of the optical connector in the connector holder part of the optical connector with a tool of FIG. 1, and the tool for optical connectors. 光コネクタ用工具の2本の介挿部材と介挿部材駆動部の介挿部材係合部との関係を示す側断面図である。It is a sectional side view which shows the relationship between the two insertion members of the tool for optical connectors, and the insertion member engaging part of the insertion member drive part. 光コネクタ用工具の介挿部材の構造を示す斜視図である。It is a perspective view which shows the structure of the insertion member of the tool for optical connectors. (a)、(b)は介挿部材の先端部の別態様を示す図である。(A), (b) is a figure which shows another aspect of the front-end | tip part of an insertion member. 工具付き光コネクタを示す図であり、(a)は、光コネクタ用工具の2本の介挿部材の内、フェルール側光ファイバと別の光ファイバとの接続点から遠い側の介挿部材と光コネクタのクランプ部との関係を模式的に示す図、(b)は、光コネクタ用工具の2本の介挿部材と介挿部材駆動部の介挿部材係合部との関係を示す図、(c)は、光コネクタ用工具の2本の介挿部材の内、フェルール側光ファイバと別の光ファイバとの接続点から近い側の介挿部材と光コネクタのクランプ部との関係を模式的に示す図である。It is a figure which shows the optical connector with a tool, (a) is the insertion member of the side far from the connection point of a ferrule side optical fiber and another optical fiber among two insertion members of the tool for optical connectors, The figure which shows typically the relationship with the clamp part of an optical connector, (b) is a figure which shows the relationship between the two insertion members of the tool for optical connectors, and the insertion member engaging part of an insertion member drive part. (C) shows the relationship between the insertion member on the side closer to the connection point between the ferrule-side optical fiber and another optical fiber, and the clamp portion of the optical connector, out of the two insertion members of the optical connector tool. It is a figure shown typically. (a)〜(c)は、工具付き光コネクタの光ファイバ用工具の介挿部材駆動部の変形操作によって、光コネクタ用工具の2本の介挿部材の内、フェルール側光ファイバと別の光ファイバとの接続点から近い側の介挿部材の係合受け部に、介挿部材駆動部の介挿部材係合部の引き抜き用係合部が係合した状態を示す図である。(A) to (c) are different from the ferrule-side optical fiber among the two insertion members of the optical connector tool by the deformation operation of the insertion member driving unit of the optical fiber tool of the optical connector with tool. It is a figure which shows the state which the engagement part for extraction of the insertion member engaging part of the insertion member drive part engaged with the engagement receiving part of the insertion member near the connection point with an optical fiber. (a)〜(c)は、工具付き光コネクタの光ファイバ用工具の介挿部材駆動部の変形操作によって、光コネクタ用工具の2本の介挿部材の内、フェルール側光ファイバと別の光ファイバとの接続点から近い側の介挿部材の、光コネクタのクランプ部からの引き抜きが完了し、前記接続点から遠い側の介挿部材の係合受け部に、介挿部材駆動部の介挿部材係合部の引き抜き用係合部が係合した状態を示す図である。(A) to (c) are different from the ferrule-side optical fiber among the two insertion members of the optical connector tool by the deformation operation of the insertion member driving unit of the optical fiber tool of the optical connector with tool. The insertion member on the side closer to the connection point with the optical fiber is completely pulled out from the clamp portion of the optical connector, and the insertion member driving portion is inserted into the engagement receiving portion of the insertion member on the side far from the connection point. It is a figure which shows the state which the engaging part for extraction of the insertion member engaging part engaged. (a)〜(c)は、工具付き光コネクタの光ファイバ用工具の介挿部材駆動部の変形操作によって、光コネクタ用工具の2本の介挿部材の内、フェルール側光ファイバと別の光ファイバとの接続点から遠い側の介挿部材を、光コネクタのクランプ部から引き抜いた状態を示す図である。(A) to (c) are different from the ferrule-side optical fiber among the two insertion members of the optical connector tool by the deformation operation of the insertion member driving unit of the optical fiber tool of the optical connector with tool. It is a figure which shows the state which extracted the insertion member on the side far from the connection point with an optical fiber from the clamp part of the optical connector. 図14の状態から、介挿部材駆動部に側圧を加えることによって、介挿部材駆動部をさらに変形させ、コネクタホルダ部の一対のコネクタ保持片が互いに離れる方向に移動した状態を示す図である。It is a figure which shows the state which further deformed the insertion member drive part by applying a side pressure to the insertion member drive part from the state of FIG. 14, and the pair of connector holding pieces of the connector holder part moved away from each other. . 図1の工具付き光コネクタを構成する光コネクタ(光コネクタプラグ)の分解斜視図である。It is a disassembled perspective view of the optical connector (optical connector plug) which comprises the optical connector with a tool of FIG. 図16の光コネクタ(光コネクタプラグ)の構造を示す図であって、(a)は部分破断側面図、(b)下面(ラッチとは反対の側の側面)側から見た図(下面図)である。It is a figure which shows the structure of the optical connector (optical connector plug) of FIG. 16, Comprising: (a) is a partially broken side view, (b) The figure seen from the lower surface (side opposite to a latch) side (bottom view) ). 図16の光コネクタに内蔵されているクランプ部付きフェルールを示す斜視図である。It is a perspective view which shows the ferrule with a clamp part incorporated in the optical connector of FIG. 図18のクランプ部付きフェルールのクランプ部を構成する各素子の合わせ面を示す図であるIt is a figure which shows the mating surface of each element which comprises the clamp part of the ferrule with a clamp part of FIG. 図18のクランプ部付きフェルールの構造を示す断面図である。It is sectional drawing which shows the structure of the ferrule with a clamp part of FIG.

符号の説明Explanation of symbols

1…工具付き光コネクタ、2…光コネクタ用工具、2A…工具成形本体、21、21A、21B…介挿部材、22…コネクタホルダ部、22b、22c…コネクタ保持片、22d…ハウジング本体収納溝、22e…ラッチ収納溝、22f…支圧部、22s…コネクタ収納溝、28…介挿部材用窓、29…コネクタカバー部、292…補助片引留壁、292a…嵌合凹部、293…補助片支持壁、294…押し込み補助片、294a…嵌合突起、295…ヒンジ部、23…介挿部材駆動部、241…第1可動端部、242…第2可動端部、242a…可動端部分割体、242b…橋絡部、25a、25b…連結壁部、28…介挿部材用窓、3…光コネクタ、31c,321…素子、32…クランプ部、38…フェルール側光ファイバ、322…バネ、4…光ファイバ、5…接続点。   DESCRIPTION OF SYMBOLS 1 ... Optical connector with a tool, 2 ... Optical connector tool, 2A ... Tool shaping | molding main body, 21, 21A, 21B ... Insertion member, 22 ... Connector holder part, 22b, 22c ... Connector holding piece, 22d ... Housing main body accommodation groove | channel 22e ... Latch receiving groove, 22f ... Pressure bearing portion, 22s ... Connector receiving groove, 28 ... Intermediate member window, 29 ... Connector cover portion, 292 ... Auxiliary piece retaining wall, 292a ... Fitting recess, 293 ... Auxiliary piece Support wall, 294 ... push-in assisting piece, 294a ... fitting protrusion, 295 ... hinge part, 23 ... insertion member drive part, 241 ... first movable end part, 242 ... second movable end part, 242a ... movable end part division Body, 242b ... Bridge part, 25a, 25b ... Connecting wall part, 28 ... Intermediate member window, 3 ... Optical connector, 31c, 321 ... Element, 32 ... Clamp part, 38 ... Ferrule side optical fiber, 322 ... Roots, 4 ... optical fiber, 5 ... connection point.

Claims (10)

突き合わせ接続した光ファイバ(4、38)の対を半割りの素子(31c、321)の間にバネ(322)の弾性によってクランプして前記光ファイバ同士の接続状態を維持するクランプ部(32)を具備する光コネクタ(3)用の工具であって、
前記クランプ部の前記素子の間に割り込ませることによって前記素子間を押し開いた状態に保ち、素子間への前記光ファイバの挿脱が可能な状態を維持する介挿部材(21、21A、21B)と、
リング状に形成され、前記介挿部材が突設されている第1可動端部(241)及び該第1可動端部とは反対の側に位置し前記介挿部材の先端側が貫通された第2可動端部(242)を有する介挿部材駆動部(23)と、
前記第2可動端部から前記介挿部材駆動部の外側に突設された一対のコネクタ保持片(22b、22c)の間に前記光コネクタを挟み込んで保持するコネクタホルダ部(22)と、
前記第2可動端部からヒンジ部(295)を介して延出され、回転操作によって、前記コネクタホルダ部の前記介挿部材駆動部とは反対の側から押し当てるようにして、前記一対のコネクタ保持片の前記第2可動端部からの突出先端間に架設できる押し込み補助片(294)、及び、前記一対のコネクタ保持片の前記第2可動端部からの突出先端同士の間に架設した前記押し込み補助片の先端が着脱可能に連結されることで、前記押し込み補助片を前記第2可動端部に引き留める補助片引留部(292a)を有してなる、コネクタカバー部(29)とを備え、
前記コネクタホルダ部の一対のコネクタ保持片の一方又は両方には、前記介挿部材を前記光コネクタのクランプ部の一対の素子間に割り込ませる際に前記光コネクタを前記介挿部材とは反対の側から押圧するための支圧部(22f)が突設され、
前記介挿部材駆動部は、前記第1可動端部と前記第2可動端部との間に位置する部分に両側から作用させた側圧によって、前記第1可動端部と前記第2可動端部との間の距離が増大するように変形されることで、前記介挿部材の前記第2可動端部から外側への突出量を縮小するように構成され、前記クランプ部の素子間に割り込ませておいた前記介挿部材を前記クランプ部から引き抜くことができ、
前記コネクタホルダ部の一対のコネクタ保持片間に架設した前記押し込み補助片の先端を前記補助片引留部に連結して、前記コネクタカバー部を、前記一対のコネクタ保持片間に保持された光コネクタを取り囲む枠状体に組み立てた状態で、前記前記押し込み補助片と前記第1可動端部とを互いに接近させる圧縮力によって前記介挿部材駆動部を変形させることで、前記第2可動端部を貫通して前記介挿部材駆動部の外側に突出された前記介挿部材の先端部(21a)を、前記光コネクタのクランプ部の一対の素子間に割り込ませることができることを特徴とする光コネクタ用工具(2)。
Clamp part (32) which clamps the pair of optical fibers (4, 38) butt-connected to each other by the elasticity of spring (322) between half-divided elements (31c, 321) and maintains the connection state between the optical fibers A tool for an optical connector (3) comprising:
An insertion member (21, 21A, 21B) that keeps the state where the elements are pushed open by being interrupted between the elements of the clamp portion, and maintains a state where the optical fiber can be inserted and removed between the elements. When,
A first movable end (241) formed in a ring shape and projecting from the insertion member, and located on the side opposite to the first movable end, and the distal end side of the insertion member is penetrated Two insertion member drive parts (23) having two movable ends (242);
A connector holder portion (22) for holding the optical connector by sandwiching the optical connector between a pair of connector holding pieces (22b, 22c) protruding from the second movable end portion to the outside of the insertion member driving portion;
The pair of connectors is extended from the second movable end portion through a hinge portion (295) and pressed from the side opposite to the insertion member driving portion of the connector holder portion by a rotation operation. The pushing auxiliary piece (294) that can be installed between the projecting tips from the second movable end of the holding piece, and the projecting tips from the second movable end of the pair of connector holding pieces. A connector cover portion (29) having an auxiliary piece retaining portion (292a) for retaining the push-in auxiliary piece to the second movable end portion by removably connecting the tip of the push-in auxiliary piece; ,
In one or both of the pair of connector holding pieces of the connector holder portion, the optical connector is opposite to the insertion member when the insertion member is inserted between the pair of elements of the clamp portion of the optical connector. A pressure bearing part (22f) for pressing from the side is projected,
The insertion member driving unit is configured such that the first movable end portion and the second movable end portion are caused by a side pressure applied from both sides to a portion located between the first movable end portion and the second movable end portion. Is configured to reduce the protruding amount of the insertion member from the second movable end portion to the outside, and is inserted between the elements of the clamp portion. The inserted insertion member can be pulled out from the clamp part,
An optical connector in which the tip of the pushing auxiliary piece laid between a pair of connector holding pieces of the connector holder portion is connected to the auxiliary piece retaining portion, and the connector cover portion is held between the pair of connector holding pieces. In the state assembled into a frame-like body that surrounds, the insertion member driving portion is deformed by a compressive force that causes the pushing assisting piece and the first movable end portion to approach each other, thereby causing the second movable end portion to be deformed. An optical connector characterized in that a distal end portion (21a) of the insertion member that penetrates and protrudes to the outside of the insertion member drive portion can be inserted between a pair of elements of the clamp portion of the optical connector. Tool (2).
前記押し込み補助片は、前記第2可動端部に介挿部材駆動部の外側に突出するように突設された補助片支持壁(293)の前記第2可動端部からの突出先端から前記ヒンジ部を介して延出され、
前記補助片引留部は、前記第2可動端部に介挿部材駆動部の外側に突出するように突設された補助片引留壁(292)の前記第2可動端部からの突出先端に設けられ、
前記押し込み補助片と前記補助片引留壁とは、前記第2可動端部において、前記介挿部材駆動部の周方向に離隔して、前記コネクタホルダ部を構成する一対のコネクタ保持片の両側に設けられていることを特徴とする請求項1記載の光コネクタ用工具。
The push-in auxiliary piece extends from the tip of the auxiliary piece support wall (293) protruding from the second movable end portion so as to protrude to the outside of the insertion member driving portion at the second movable end portion. Extended through the department,
The auxiliary piece retaining portion is provided at a projecting tip from the second movable end portion of an auxiliary piece retaining wall (292) projecting from the second movable end portion so as to protrude outside the insertion member driving portion. And
The pushing auxiliary piece and the auxiliary piece retaining wall are spaced apart from each other in the circumferential direction of the insertion member driving portion at the second movable end portion, on both sides of the pair of connector holding pieces constituting the connector holder portion. The optical connector tool according to claim 1, wherein the optical connector tool is provided.
前記補助片引留部が、前記補助片引留壁の前記第2可動端部からの突出先端に形成され、前記押し込み補助片の前記第2可動端部からの突出先端部に突設された嵌合突起(294a)が圧入して嵌め込まれる嵌合凹部(292a)であり、
前記コネクタホルダ部の一対のコネクタ保持片の間に架設した前記押し込み補助片の先端の前記嵌合突起を前記補助片引留壁の前記嵌合凹部に嵌め込むことで、前記押し込み補助片が前記第2可動端部に引き留められることを特徴とする請求項2記載の光コネクタ用工具。
The auxiliary piece retaining portion is formed at the projecting tip of the auxiliary piece retaining wall from the second movable end portion, and is fitted at the projecting tip portion of the pushing auxiliary piece from the second movable end portion. A fitting recess (292a) into which the protrusion (294a) is press-fitted and fitted;
By fitting the fitting protrusion at the tip of the pushing auxiliary piece installed between the pair of connector holding pieces of the connector holder portion into the fitting concave portion of the auxiliary piece retaining wall, the pushing auxiliary piece is The optical connector tool according to claim 2, wherein the optical connector tool is fastened to the two movable ends.
前記コネクタカバー部の前記補助片支持壁が、前記コネクタホルダ部の一対のコネクタ保持片の内の一方の一部であり、前記補助片引留壁が、前記コネクタホルダ部の一対のコネクタ保持片の内の他方の一部であることを特徴とする請求項3記載の光コネクタ用工具。   The auxiliary piece supporting wall of the connector cover portion is a part of one of the pair of connector holding pieces of the connector holder portion, and the auxiliary piece retaining wall of the pair of connector holding pieces of the connector holder portion. The optical connector tool according to claim 3, wherein the optical connector tool is a part of the other. 前記コネクタホルダ部の一対のコネクタ保持片は、前記第2可動端部において、前記介挿部材駆動部の周方向に離隔して設けられ、
対向する両側からの側圧による前記介挿部材駆動部の変形に伴い第2可動端部が前記介挿部材駆動部の外側に膨らむように変形されることで、前記嵌合凹部に嵌め込まれていた前記押し込み補助片の嵌合突起が前記嵌合凹部から引き抜かれるとともに、前記コネクタホルダ部の一対のコネクタ保持片が互いに離れる方向に移動して開放されることを特徴とする請求項3又は4記載の光コネクタ用工具。
The pair of connector holding pieces of the connector holder portion is provided in the second movable end portion so as to be spaced apart in the circumferential direction of the insertion member driving portion,
The second movable end portion is deformed so as to swell outside the insertion member driving portion with the deformation of the insertion member driving portion due to the lateral pressure from both sides facing each other, and thus is fitted in the fitting recess. 5. The fitting protrusion of the push-in auxiliary piece is pulled out from the fitting recess, and the pair of connector holding pieces of the connector holder part are moved away from each other and released. Optical connector tool.
前記第2可動端部は、前記介挿部材が通される介挿部材用窓(28)によって2つの可動端部分割体(242a)に分割され、前記介挿部材駆動部の周方向において前記介挿部材用窓を介して両側の可動端部分割体が橋絡部(242b)を介して橋絡され、
前記コネクタホルダ部の一対のコネクタ保持片が、前記第2可動端部において、前記橋絡部を介して両側の可動端部分割体に振り分け配置され、
前記コネクタカバー部の前記押し込み補助片と前記補助片引留壁とが、前記第2可動端部において、前記橋絡部を介して両側の可動端部分割体に振り分け配置されていることを特徴とする請求項5記載の光コネクタ用工具。
The second movable end portion is divided into two movable end portion divided bodies (242a) by an insertion member window (28) through which the insertion member is passed, and in the circumferential direction of the insertion member driving portion, The movable end portion splits on both sides are bridged via the bridging portion (242b) via the insertion member window,
A pair of connector holding pieces of the connector holder portion are arranged and distributed to the movable end portion split bodies on both sides via the bridging portion in the second movable end portion,
The push-in auxiliary piece and the auxiliary piece retaining wall of the connector cover part are arranged in the second movable end portion so as to be distributed to the movable end portion divided bodies on both sides via the bridging portion. The optical connector tool according to claim 5.
前記光コネクタのクランプ部の一対の素子間に割り込ませておいた介挿部材が、両側からの側圧によって介挿部材駆動部が変形して前記一対の素子間から引き抜かれた後に、
前記側圧による介挿部材駆動部の変形の継続によって、
前記補助片引留壁の前記嵌合凹部に嵌め込まれていた前記押し込み補助片の嵌合突起が前記嵌合凹部から引き抜かれることを特徴とする請求項5又は6記載の光コネクタ用工具。
After the insertion member that has been interrupted between the pair of elements of the clamp part of the optical connector, the insertion member drive part is deformed by the side pressure from both sides and pulled out between the pair of elements,
By continuing the deformation of the insertion member drive unit due to the side pressure,
The optical connector tool according to claim 5 or 6, wherein the fitting protrusion of the push-in auxiliary piece fitted into the fitting concave portion of the auxiliary piece retaining wall is pulled out from the fitting concave portion.
前記光コネクタが、スリーブ状のハウジング本体(39a)と、このハウジング本体の一側部に突設されたラッチ(39b)とを具備するものであり、
前記コネクタホルダ部の一対のコネクタ保持片の間に、前記ハウジング本体を収納するハウジング本体収納溝(22d)と、該ハウジング本体収納溝から前記介挿部材駆動部の前記第2可動端部とは反対の側に延び、前記光コネクタの前記ラッチを収納する、前記ハウジング本体収納溝よりも狭幅に形成されたラッチ収納溝(22e)とを具備するコネクタ収納溝(22s)が確保され、前記コネクタ保持片の前記ハウジング本体収納溝を介して前記第2可動端部とは反対の側に位置する部分が前記支圧部として機能し、
前記押し込み補助片は、前記コネクタ収納溝を介して両側のコネクタ保持片の間に架設されるようになっていることを特徴とする請求項1〜7のいずれかに記載の光コネクタ用工具。
The optical connector includes a sleeve-shaped housing body (39a) and a latch (39b) protruding from one side of the housing body,
Between the pair of connector holding pieces of the connector holder portion, a housing body housing groove (22d) for housing the housing body, and the second movable end portion of the insertion member drive section from the housing body housing groove A connector housing groove (22s) extending to the opposite side and housing the latch of the optical connector and having a latch housing groove (22e) formed narrower than the housing body housing groove is secured, A portion of the connector holding piece located on the side opposite to the second movable end portion via the housing body housing groove functions as the pressure-supporting portion,
The optical connector tool according to any one of claims 1 to 7, wherein the push-in auxiliary piece is constructed between the connector holding pieces on both sides via the connector housing groove.
前記介挿部材駆動部と前記コネクタホルダ部とを、合成樹脂によって一体成形した1部品の工具成形本体(2A)を具備することを特徴とする請求項1〜8のいずれかに記載の光コネクタ用工具。   The optical connector according to any one of claims 1 to 8, further comprising a one-piece tool forming body (2A) in which the insertion member driving portion and the connector holder portion are integrally formed of synthetic resin. Tools. 突き合わせ接続した光ファイバ(4、38)の対を半割りの素子(31c、321)の間にバネ(322)の弾性によってクランプして光ファイバ同士の接続状態を維持するクランプ部(32)を具備する光コネクタの外側に請求項1〜9のいずれかに記載の光コネクタ用工具が取り付けられ、前記クランプ部の素子の間に、前記光コネクタ用工具の介挿部材が割り込ませてあることを特徴とする工具付き光コネクタ(1)。   A clamp portion (32) for maintaining a connection state between optical fibers by clamping a pair of butt-connected optical fibers (4, 38) between the half-divided elements (31c, 321) by elasticity of a spring (322). The optical connector tool according to any one of claims 1 to 9 is attached to the outside of the optical connector provided, and an insertion member of the optical connector tool is inserted between the elements of the clamp portion. An optical connector with a tool (1) characterized by
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CN114415292B (en) * 2022-03-29 2022-06-17 季华实验室 Automatic unlocking device, system and method for LC optical fiber connector

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