JP2011033698A - Optical data link - Google Patents

Optical data link Download PDF

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JP2011033698A
JP2011033698A JP2009177775A JP2009177775A JP2011033698A JP 2011033698 A JP2011033698 A JP 2011033698A JP 2009177775 A JP2009177775 A JP 2009177775A JP 2009177775 A JP2009177775 A JP 2009177775A JP 2011033698 A JP2011033698 A JP 2011033698A
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optical
receptacle
actuator
bail
data link
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Hidemi Sone
秀己 曽根
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Sumitomo Electric Industries Ltd
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Sumitomo Electric Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical data link prevented from being removed from a cage while an optical connector is mounted to an optical receptacle. <P>SOLUTION: The optical data link 1 includes the optical receptacle 10 for mounting the optical connector C, an actuator 30 supported by the optical receptacle 10 and having a protrusion 33a to be engaged with an engagement hole formed in the cage of a host device, and a veil 40 causing a seesaw action in the actuator 30 for releasing engagement between the protrusion 33a and the engagement hole. The veil 40 is constructed of a pair of legs and a connection part connecting the legs together, and is held by the optical receptacle 10 so that the connection part is positioned on the same side as the actuator 30 with respect to the optical receptacle 10. The leg includes a stopper 41c abutting to an optical connector body part to stop rotation of the veil while the optical connector is mounted to the optical receptacle. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、光ファイバ通信に用いられ、ホスト装置のケージに挿脱される光データリンクに関し、特にケージに対する係脱機構に関する   The present invention relates to an optical data link that is used for optical fiber communication and is inserted into and removed from a cage of a host device, and more particularly, to an engagement / disengagement mechanism for the cage.

光トランシーバ等の光データリンクは、光コネクタを介して信号光の送信及び／又は受信を行うもので、光電変換素子や回路基板が収納されるリンク本体部と、光コネクタが着脱可能に装着される光レセプタクルと、を備える。光データリンクのうち、ＳＦＰ（Small Form-Factor Pluggable）と呼ばれる業界標準に準拠した小型のものでは、ホスト装置のケージに対して挿抜自在とする構造、すなわちプラガブル構造を採用しており、このプラガブル構造に関して様々なものが提案されている（例えば、特許文献１，２参照）。   An optical data link such as an optical transceiver transmits and / or receives signal light through an optical connector. The optical connector is detachably attached to a link main body portion that houses photoelectric conversion elements and circuit boards. An optical receptacle. Among optical data links, small-size ones conforming to an industry standard called SFP (Small Form-Factor Pluggable) employ a structure that can be inserted into and removed from the host device cage, that is, a pluggable structure. Various structures have been proposed (see, for example, Patent Documents 1 and 2).

従来の光データリンクでは、プラガブル構造とするために、図１１（Ａ）に示すように、光コネクタＣが装着される光レセプタクル１０１にベール１０２とアクチュエータ１０３が取付けられている。ベール１０２は、光レセプタクル１０１に設けられた取付軸１０１ａ（図１１Ａに１０１ａは未記）を中心に回転可能なものであり、ベール１０２をこの取付軸を中心として回転させることによりアクチュエータ１０３を連動させてシーソ運動させる。アクチュエータ１０３は、ホスト装置のケージに形成された係合孔に係脱する係合突起１０３ａを有し、該係合突起１０３ａとホスト装置のケージとの係合により、光データリンク１００がケージから抜き出せないようになっている。   In the conventional optical data link, in order to have a pluggable structure, as shown in FIG. 11A, a bail 102 and an actuator 103 are attached to an optical receptacle 101 to which an optical connector C is attached. The bail 102 is rotatable about a mounting shaft 101a (101a not shown in FIG. 11A) provided on the optical receptacle 101, and the actuator 103 is interlocked by rotating the bail 102 about the mounting shaft. Let the seesaw exercise. The actuator 103 has an engagement protrusion 103a that engages with and disengages from an engagement hole formed in the cage of the host device, and the optical data link 100 is removed from the cage by the engagement of the engagement protrusion 103a and the cage of the host device. It cannot be extracted.

また、光データリンク１００がケージに装着された状態でベール１０２が操作されると、該ベール１０２と連動して動くアクチュエータ１０３の係合突起１０３ａが上下し該突起１０３ａとケージの係合孔との係合が解除され、光データリンク１００がケージから抜き出せるようになっている。   When the bail 102 is operated with the optical data link 100 mounted on the cage, the engagement protrusion 103a of the actuator 103 moving in conjunction with the bail 102 moves up and down, and the protrusion 103a and the engagement hole of the cage The optical data link 100 can be extracted from the cage.

光データリンク１００では、さらに、ＬＣコネクタＣが光レセプタクル１０１に装着されている状態で係合突起１０３ａとケージとの係合が解除されるのを防ぐため、図１１（Ｂ）に示すように、ＬＣコネクタＣがレセプタクル１０１に装着されている状態でベール１０２を回転させようとすると、ベール１０２の上側（光コネクタＣのラッチ部Ｃ１側）の部分１０２ａが、光コネクタＣのラッチ部Ｃ１に当接し、ベール１０２がそれ以上回転しないようになっている。これにより、ＬＣコネクタＣが装着されている状態では、係合突起１０３ａの上下運動が制限されるので、光データリンク１００がケージから抜き出されることがない。   Further, in the optical data link 100, as shown in FIG. 11B, in order to prevent the engagement between the engagement protrusion 103a and the cage from being released while the LC connector C is attached to the optical receptacle 101, When the bail 102 is rotated while the LC connector C is attached to the receptacle 101, the portion 102a on the upper side of the bail 102 (on the side of the latch part C1 of the optical connector C) becomes the latch part C1 of the optical connector C. The bale 102 abuts so that it can no longer rotate. Thereby, in a state where the LC connector C is mounted, the vertical movement of the engaging protrusion 103a is restricted, so that the optical data link 100 is not pulled out from the cage.

特開２００５−３１７５４０号公報JP 2005-317540 A 特開２００７−２２６０３９号公報JP 2007-226039 A

上述のようにベール１０２の連結部１０２ａは光コネクタＣのラッチ部Ｃ１に突き当たるが、図１１（Ａ）のベール初期状態において、両者の間には隙間（クリアランス）が設けられている。このクリアランスは、ＬＣコネクタＣの寸法公差や、ＬＣコネクタＣのラッチ部Ｃ１の変形のしやすさ等を考慮して設定されている。
このクリアランスがあるため、ＬＣコネクタＣを光レセプタクル１０１に装着した状態でも、ベール１０２は僅かに回転し（がたつき）、アクチュエータ１０３の突起１０３ａも僅かではあるが上下運動する。このため、係合突起１０３ａがケージの係合孔から外れる可能性が残る。 As described above, the connecting portion 102a of the bail 102 abuts against the latch portion C1 of the optical connector C, but a gap (clearance) is provided between the two in the initial state of the bail in FIG. This clearance is set in consideration of the dimensional tolerance of the LC connector C, the ease of deformation of the latch portion C1 of the LC connector C, and the like.
Because of this clearance, even when the LC connector C is attached to the optical receptacle 101, the bail 102 rotates slightly (rattles), and the protrusion 103a of the actuator 103 moves up and down slightly. For this reason, there is a possibility that the engagement protrusion 103a is detached from the engagement hole of the cage.

本発明は、上述のような実情に鑑み、光コネクタを光レセプタクルに装着した状態ではケージから外れることがない光データリンクを提供することを目的とする。   An object of the present invention is to provide an optical data link that does not come off the cage when the optical connector is mounted on the optical receptacle.

上記課題を解決するために、本発明の光データリンクは、光コネクタを受納し、ホスト装置に備えられたケージに装着され、光信号と電気信号との変換を行うものであって、光コネクタが装着される光レセプタクルと、該光レセプタクルに保持され、ケージに形成された係合孔と係合する突起を有するアクチュエータと、アクチュエータにシーソ運動を誘起し該突起を該係合孔から離脱させるベールと、を備え、ベールが、一対の脚部と、該一対の脚部を連結する連結部とからなり、該連結部は光レセプタクルが光コネクタを装着している状態で光レセプタクルに対してアクチュエータと同じ側に位置していることを特徴とする。   In order to solve the above problems, an optical data link of the present invention receives an optical connector, is attached to a cage provided in a host device, and converts an optical signal and an electrical signal. An optical receptacle to which a connector is attached, an actuator having a protrusion that is held by the optical receptacle and engages with an engagement hole formed in the cage; and a seesaw motion is induced in the actuator to disengage the protrusion from the engagement hole A bail comprising a pair of leg portions and a connecting portion for connecting the pair of leg portions, the connecting portion being attached to the optical receptacle in a state where the optical receptacle is mounted with the optical connector. And is located on the same side as the actuator.

ベールが、連結部が光レセプタクル前面を横切ることができる様に一対の脚部が光レセプタクル側面に保持されており、一対の脚部それぞれの前面には、光レセプタクルが光コネクタを装着している際に光コネクタに突き当たって連結部の光レセプタクル前面を横切る動きを阻止する第１のストッパを有しているとよい。   A pair of legs are held on the side of the optical receptacle so that the connecting portion can cross the front surface of the optical receptacle, and the optical receptacle has an optical connector attached to the front surface of each of the pair of legs. At this time, it is preferable to have a first stopper that abuts against the optical connector and prevents movement of the connecting portion across the front surface of the optical receptacle.

ベールが、光コネクタが光レセプタクルに装着されていない状態で、ベールを回転しようとする際に光レセプタクルに突き当たってベール過回転することを防止する第２のストッパを有していてもよい。また、第１のストッパが、脚部を連結するように形成され、光データリンク用の識別情報を当該連結部に付すようにしてもよい。
さらに、ベールの内面に凸部を設け、該凸部がアクチュエータ又は光レセプタクルに突き当たってベールの初期位置を規定するようにしてもよい。 The bail may include a second stopper that prevents the bale from over-rotating by striking the optical receptacle when the bale is to be rotated when the optical connector is not attached to the optical receptacle. Further, the first stopper may be formed so as to connect the legs, and identification information for optical data link may be attached to the connection.
Further, a convex portion may be provided on the inner surface of the bail, and the convex portion may abut against the actuator or the optical receptacle to define the initial position of the bale.

本発明の光データリンクの概略を説明する図である。It is a figure explaining the outline of the optical data link of this invention. 本発明の光データリンクの概略を説明する図である。It is a figure explaining the outline of the optical data link of this invention. 図１及び図２のアクチュエータについて説明する図である。It is a figure explaining the actuator of FIG.1 and FIG.2. 図１及び図２の光レセプタクルについて説明する図である。It is a figure explaining the optical receptacle of FIG.1 and FIG.2. 図１及び図２のベールについて説明する図である。It is a figure explaining the bale of FIG.1 and FIG.2. 図１及び図２の光データリンクを取り外す際のベールの回転運動とアクチュエータのシーソ運動との関係を説明する図である。It is a figure explaining the relationship between the rotational motion of the bale at the time of removing the optical data link of FIG.1 and FIG.2, and the seesaw motion of an actuator. アクチュエータの係合突起を示す図である。It is a figure which shows the engagement protrusion of an actuator. ベールの他の例を示す図である。It is a figure which shows the other example of a veil. ベールの更に別の例を示す図である。It is a figure which shows another example of a veil. ベールの更に別の例を示す図である。It is a figure which shows another example of a veil. 従来の光データリンクを示す図である。It is a figure which shows the conventional optical data link.

図１及び図２を用いて、本発明の光データリンクの概略を説明する。
図１（Ａ）は光データリンクに光コネクタが装着された状態を示す斜視図であり、図１（Ｂ）は当該光コネクタが取り外され光コネクタ挿入部が露出されている状態を示す斜視図である。
図１（Ａ）に示すように、光データリンク１は、例えば、光コネクタＣが装着される光レセプタクル１０の後部に、データリンク本体部２０が連続する断面矩形の長方形体に形成される。光データリンク１内には、発光素子、受光素子等の光部品、光信号の送受信を行うための増幅素子等の電子部品等が備えられる。 The outline of the optical data link of the present invention will be described with reference to FIGS.
FIG. 1A is a perspective view showing a state where an optical connector is attached to an optical data link, and FIG. 1B is a perspective view showing a state where the optical connector is removed and the optical connector insertion portion is exposed. It is.
As shown in FIG. 1A, the optical data link 1 is formed in, for example, a rectangular body having a rectangular cross section in which the data link main body 20 is continuous with the rear portion of the optical receptacle 10 to which the optical connector C is attached. The optical data link 1 includes optical components such as a light emitting element and a light receiving element, and electronic components such as an amplifying element for transmitting and receiving optical signals.

また、光レセプタクル１０の前部には、図１（Ｂ）に示すように、光コネクタＣが着脱自在に装着される一対の開口１１ａ，１１ｂが設けられている。図２は光コネクタＣが光データリンク１の光レセプタクル１０に装着された状態を示す側面図である。光コネクタＣとして、例えば、図２に示すように、ラッチ部Ｃ１によりコネクタ本体部Ｃ２の光レセプタクル１０への装着が係止される例えば、ＬＣコネクタが用いられる。   Further, as shown in FIG. 1B, a pair of openings 11a and 11b to which the optical connector C is detachably attached are provided at the front portion of the optical receptacle 10. FIG. 2 is a side view showing a state in which the optical connector C is attached to the optical receptacle 10 of the optical data link 1. As the optical connector C, for example, as shown in FIG. 2, for example, an LC connector in which the mounting of the connector main body C2 on the optical receptacle 10 is latched by a latch C1 is used.

さらに、光レセプタクル１０には図１（Ｂ）に示す様にアクチュエータ３０とベール４０とが取付けられている。アクチュエータ３０は、光レセプタクル１０に対してシーソ運動が可能となる様に保持されるものであり、ホスト装置のケージに形成された係合孔に係脱する係合突起３３ａ（図２参照）を有する。また、ベール４０は、一対の脚部とこれら脚部を連結する連結部が断面コの字形状を為す様に構成され、当該連結部が光レセプタクル１０の開口１１ａ、１１ｂを横切ることができる様にその脚部が光レセプタクル１０の側面に保持され、当該保持部を中心に回転可能となっている。また、該回転動作によってアクチュエータ３０にシーソ運動を起し、その係合突起３３ａとケージの係合孔とを係合／解除させるものである。
また、後述するようにベール４０の連結部がアクチュエータ３０側に位置するようにその脚部が光レセプタクル１０の側面に保持され、脚部の前方側に光コネクタＣが光レセプタクル１０に装着された状態で光コネクタ本体部Ｃ２に突き当たってベール１０の回転を阻止するストッパ４１ｃ(第１のストッパ)を有している。 Further, an actuator 30 and a bail 40 are attached to the optical receptacle 10 as shown in FIG. The actuator 30 is held so that the seesaw motion can be performed with respect to the optical receptacle 10, and an engagement protrusion 33a (see FIG. 2) that engages with and disengages from an engagement hole formed in the cage of the host device. Have. In addition, the bail 40 is configured such that a pair of leg portions and a connecting portion connecting these leg portions have a U-shaped cross section, and the connecting portion can cross the openings 11 a and 11 b of the optical receptacle 10. Further, the leg portion is held on the side surface of the optical receptacle 10 and is rotatable around the holding portion. Further, a seesaw motion is caused in the actuator 30 by the rotation operation, and the engagement projection 33a and the engagement hole of the cage are engaged / released.
Further, as will be described later, the leg portion is held on the side surface of the optical receptacle 10 so that the connecting portion of the bail 40 is located on the actuator 30 side, and the optical connector C is attached to the optical receptacle 10 on the front side of the leg portion. In this state, a stopper 41c (first stopper) is provided which hits the optical connector main body C2 to prevent the bail 10 from rotating.

続いて、図３〜図５を用いて、アクチュエータ３０、光レセプタクル１０及びベール４０について詳細に説明する。
図３は、図１及び図２のアクチュエータ３０について説明する図で、図３（Ａ）及び（Ｂ）はそれぞれ、アクチュエータ３０を上方及び下方から俯瞰した様子を示す斜視図である。アクチュエータ３０は、本体部３１、支点部３２、係合部３３及びバネ部３４を含んで成り、光レセプタクル１０に支持される。 Next, the actuator 30, the optical receptacle 10, and the bail 40 will be described in detail with reference to FIGS.
FIG. 3 is a diagram for explaining the actuator 30 in FIGS. 1 and 2, and FIGS. 3A and 3B are perspective views showing the actuator 30 viewed from above and below, respectively. The actuator 30 includes a main body portion 31, a fulcrum portion 32, an engagement portion 33, and a spring portion 34, and is supported by the optical receptacle 10.

本体部３１は、後述するベール４０の脚部に設けられたカム面にその頂部が接する側壁部３１ａを両側に有し、また、これら側壁部３１ａを連結する連結部３１ｂを有する。この連結部３１ｂには後方に向かって延びるバネ部３４が一体的に形成されている。   The main body portion 31 has side wall portions 31a whose top portions are in contact with cam surfaces provided on leg portions of the bail 40, which will be described later, and a connecting portion 31b that connects the side wall portions 31a. The connecting portion 31b is integrally formed with a spring portion 34 extending rearward.

支点部３２は、アクチュエータ３０に誘起されるシーソ運動の支点になる軸３２ａを有し、この軸３２ａは、例えば、略半円柱状に形成される。軸３２ａが後述する光レセプタクル１０の軸受部に支持される。軸３２ａが上記軸受部に保持されスムーズに回転することで、アクチュエータ３０に軸３２ａを支点としたシーソ運動が誘起される。
係合部３３の先端（後方）には、図３（Ｂ）に示すように、ホスト装置のケージの係合孔に係合する係合突起３３ａが形成されている。軸３２ａを中心とするシーソ運動がこの係合突起３３ａに上下運動を起こさせる。 The fulcrum portion 32 has a shaft 32a that becomes a fulcrum of the seesaw motion induced by the actuator 30, and this shaft 32a is formed in a substantially semi-cylindrical shape, for example. The shaft 32a is supported by a bearing portion of the optical receptacle 10 described later. The shaft 32a is held by the bearing portion and smoothly rotates, so that a seesaw motion with the shaft 32a as a fulcrum is induced in the actuator 30.
As shown in FIG. 3B, an engagement protrusion 33a that engages with the engagement hole of the cage of the host device is formed at the tip (rear) of the engagement portion 33. A seesaw motion about the shaft 32a causes the engaging projection 33a to move up and down.

バネ部３４は、当該バネ部３４が撓むことによる応力がアクチュエータ３０の前端側を常に押し上げる力をもたらす。連結部３１ｂから伸びだすバネ部３４の主枝がアクチュエータ本体部３１の主面に対してその組立前は有意な角度を有している。この角度を補償する様に（角度を無くす様に）アクチュエータ３０は光レセプタクル１０に組み付けられる。すなわち、アクチュエータ３０をレセプタクルに装着する際、すなわち、その軸３２ａをレセプタクル１０の軸受部１１ｄにセットすると、バネ部３４の主枝は常に撓んだ状態でレセプタクル１０に対してセットされることとなる。バネ部３４の後端は、連結部３１ｂから後方に延び、支点部３２を超え係合部３３にまで達しており、該後端には、上方に向かって延び出す水平断面がＴ字状の突起３４ａ（図３（Ａ））が形成されている。このバネ部３４先端の突起３４ａは、後述するように、光レセプタクル１０の中央隔壁に形成されたポケットに収まることで、アクチュエータ３０の前後方向の移動を制限する。   The spring portion 34 provides a force that the stress caused by the bending of the spring portion 34 always pushes up the front end side of the actuator 30. The main branch of the spring portion 34 extending from the coupling portion 31 b has a significant angle with respect to the main surface of the actuator main body portion 31 before assembly. The actuator 30 is assembled to the optical receptacle 10 so as to compensate for this angle (to eliminate the angle). That is, when the actuator 30 is mounted on the receptacle, that is, when its shaft 32a is set on the bearing portion 11d of the receptacle 10, the main branch of the spring portion 34 is always set to the receptacle 10 in a bent state. Become. The rear end of the spring part 34 extends rearward from the coupling part 31b and reaches the engaging part 33 beyond the fulcrum part 32. The horizontal end extending upward is formed in a T-shape at the rear end. A protrusion 34a (FIG. 3A) is formed. As will be described later, the protrusion 34 a at the tip of the spring portion 34 is accommodated in a pocket formed in the central partition of the optical receptacle 10, thereby restricting movement of the actuator 30 in the front-rear direction.

図４は、図１及び図２の光レセプタクル１０について説明する図で、図４（Ａ）及び図４（Ｂ）はそれぞれ光レセプタクル１０を前方／後方から見た様子を示す斜視図であり、図１及び図２とは上下逆に示されている。
光レセプタクル１０は、前方から順にレセプタクル部１１、搭載部１２を有する。 4 is a diagram for explaining the optical receptacle 10 of FIGS. 1 and 2, and FIGS. 4A and 4B are perspective views showing the optical receptacle 10 as viewed from the front / rear, respectively. 1 and 2 are shown upside down.
The optical receptacle 10 has a receptacle part 11 and a mounting part 12 in order from the front.

レセプタクル部１１は、光コネクタ本体部Ｃ２（図２参照）が挿入される部分であり、その前方に上記本体部Ｃ２が挿入される送信／受信用の二つの開口１１ａ、１１ｂを有する。レセプタクル部１１は、ベール４０が取付けられる突起１１ｃをその外側面上方に有する。後述のベール４０の脚部に形成される孔に、この突起１１ｃを挿入することにより、ベール４０が光レセプタクル１０に取付けられる。
また、レセプタクル部１１の下面には、アクチュエータ３０のシーソ運動の軸３２ａが収まる軸受部１１ｄが形成されている。 The receptacle part 11 is a part into which the optical connector main part C2 (see FIG. 2) is inserted, and has two transmission / reception openings 11a and 11b into which the main part C2 is inserted. The receptacle part 11 has the protrusion 11c to which the bail 40 is attached above the outer surface. The bail 40 is attached to the optical receptacle 10 by inserting the projection 11c into a hole formed in a leg portion of the bail 40 described later.
In addition, a bearing portion 11 d in which a seesaw motion shaft 32 a of the actuator 30 is accommodated is formed on the lower surface of the receptacle portion 11.

搭載部１２は、二つの空間１２ａ，１２ｂを有し、これら空間１２ａ，１２ｂに発光デバイス、受光デバイスが搭載される。空間１２ａ，１２ｂは、一対の側壁１２ｃと中央隔壁１２ｄ等により区画されている。中央隔壁１２ｄには、その前方端にポケット１２ｅを備え、このポケット１２ｅにアクチュエータ３０のバネ部３４の後端に形成されている突起３４ａが収まる。
さらに、側壁１２ｃの外面には突起１２ｆが形成されており、この突起１２ｆが光リンク本体部２０の側面の開口に係合することにより、光レセプタクル１０はリンク本体部２０に取付けられる。 The mounting unit 12 has two spaces 12a and 12b, and a light emitting device and a light receiving device are mounted in these spaces 12a and 12b. The spaces 12a and 12b are partitioned by a pair of side walls 12c and a central partition wall 12d. The central partition 12d has a pocket 12e at the front end thereof, and a projection 34a formed at the rear end of the spring portion 34 of the actuator 30 is received in the pocket 12e.
Further, a projection 12 f is formed on the outer surface of the side wall 12 c, and the optical receptacle 10 is attached to the link main body 20 by engaging the projection 12 f with the opening on the side surface of the optical link main body 20.

図５は、ベール４０について説明する図である。ベール４０は一対の脚部４１とこれら脚部４１を接続する連結部４２を有する断面コの字状の部品である。
一対の脚部４１のそれぞれには、光レセプタクル１０の側面突起１１ｃが挿入される開口４１ａが形成されていて、ベール４０はこの突起１１ｃを中心として回転運動を行う。また、脚部４１は、その後端４１ｂがカム状に形成されており、ベール４０の回転運動に同期して、このカム面４１ｂが、アクチュエータ３０の側壁部３１ａの先端面をなぞることでアチュエータ３０にシーソ運動を起こし、このシーソ運動によりケージの係合孔とアクチュエータ３０の係合突起３３ａとの間の係合除関係が解除される。 FIG. 5 is a diagram for explaining the bail 40. The bail 40 is a U-shaped part having a pair of leg portions 41 and a connecting portion 42 connecting the leg portions 41.
Each of the pair of leg portions 41 is formed with an opening 41a into which the side protrusion 11c of the optical receptacle 10 is inserted, and the bail 40 performs a rotational motion around the protrusion 11c. Further, the leg portion 41 has a rear end 41 b formed in a cam shape, and the cam surface 41 b traces the tip end surface of the side wall portion 31 a of the actuator 30 in synchronization with the rotational movement of the bail 40. The seesaw motion is caused, and the disengagement relationship between the engagement hole of the cage and the engagement protrusion 33a of the actuator 30 is released by this seesaw motion.

さらに、脚部４１は、その前端にストッパ（第１のストッパ）４１ｃが形成されている。第１のストッパ４１ｃは、光レセプタクル１０に光コネクタＣが装着された状態でベール４０を回転しようとする際に、このストッパ４１ｃが光コネクタ本体部Ｃ２（図２参照）の段差に突き当りベール４０の回転運動を阻止する機能を有する。
さらに、ベール４０の前端面には、後述の過回転防止するためのストッパ４１ｄ（第２のストッパ）も形成されている。 Further, the leg portion 41 has a stopper (first stopper) 41c formed at the front end thereof. The first stopper 41c hits the step of the optical connector main body C2 (see FIG. 2) when the bail 40 is rotated while the optical connector C is attached to the optical receptacle 10, and the bail 40 It has a function to prevent the rotational movement of.
Further, a stopper 41d (second stopper) for preventing over-rotation described later is also formed on the front end surface of the bail 40.

続いて、図６を用いて、光データリンク１とケージとの係合を解除する際におけるベール４０の回転運動とアクチュエータ３０のシーソ運動との関係を説明する。
光データリンク１をケージから取り外す際は、図６（Ａ）に示すように、光コネクタＣを予め取り外しておく。図６（Ａ）の状態は、ベール４０の初期状態であって、その連結部４２は光レセプタクル１０の下方にセットされており、アクチュエータ３０の係合突起３３ａは最も外側に突き出されケージの係合孔に納まっている状態である。 Next, the relationship between the rotational motion of the bail 40 and the seesaw motion of the actuator 30 when releasing the engagement between the optical data link 1 and the cage will be described with reference to FIG.
When removing the optical data link 1 from the cage, the optical connector C is removed in advance as shown in FIG. The state shown in FIG. 6A is an initial state of the bail 40, and its connecting portion 42 is set below the optical receptacle 10, and the engaging protrusion 33 a of the actuator 30 protrudes to the outermost side to engage the cage. It is in the state of being in the hole.

この状態から、所定の治具もしくは手動でベール４０を突起１１ｃを中心として図の時計回りに回転すると、カム面４１ｂがアクチュエータ３０の側壁頂部３１ａ上をなぞる（図６（Ａ）→図６（Ｂ）→図６（Ｃ））。カム面４１ｂは、側壁頂部３１ａとの接触点からアクチュエータ３０の回転中心（突起１１ｃの中心）までの距離がベール４０の回転に連動して次第に大きくなる形状を有する。したがって、カム面４１ｂはそれだけアクチュエータ本体部３１（図３参照）を下方に押し出すことになり、シーソ運動により係合突起３３ａが次第に光レセプタクル１０側に引き寄せられ、最終的にケージとの係合状態が解除される（図６（Ｄ））。この状態になると、ベール４０を、例えばその連結部をつまんで前方に引っ張ると光データリンク１をケージから取り外すことができる。   From this state, when the bail 40 is rotated clockwise around the protrusion 11c with a predetermined jig or manually, the cam surface 41b traces on the side wall top 31a of the actuator 30 (FIG. 6A → FIG. 6). B) → FIG. 6 (C)). The cam surface 41b has a shape in which the distance from the contact point with the side wall top portion 31a to the rotation center of the actuator 30 (center of the projection 11c) gradually increases in conjunction with the rotation of the bail 40. Therefore, the cam surface 41b pushes the actuator main body 31 (see FIG. 3) downward accordingly, and the engagement projection 33a is gradually drawn toward the optical receptacle 10 by the seesaw motion, and finally is engaged with the cage. Is released (FIG. 6D). In this state, the optical data link 1 can be removed from the cage by pinching the bail 40, for example, and pulling it forward.

また、図６（Ｄ）に示すような位置までベール４０を回転させた場合、ベール４０の過回転防止ストッパ４１ｄが光レセプタクル１０の上部に突き当たるので、ベール４０のそれ以上の回転が規制される。
なお、アクチュエータ３０の係合部３３がこの様にベール４０の回転に合わせて一連の動作を行ったとしても、そのバネ部３４（図３参照）は常に光レセプタクル１０に対してベール４０を押し付ける様に作用する。したがって、ベール４０から手を離すと、このバネ部３４の有する弾性力により、ベール４０は図６（Ａ）の位置に自動的に戻る。すなわち、図６（Ｃ）において、アクチュエータ１０からレセプタクル１０へ向かう力のベクトルは矢印Ａの方向にある。このベクトルはレセプタクルの回転突起１１ｃの中心からはオフセットされているのでベール４２に対して回転モーメントを与えることになり、ベール４２を初期状態（図６（Ａ））に戻す様に作用する。 Further, when the bail 40 is rotated to a position as shown in FIG. 6D, the over-rotation preventing stopper 41d of the bail 40 abuts on the upper part of the optical receptacle 10, so that further rotation of the bail 40 is restricted. .
Even if the engaging portion 33 of the actuator 30 performs a series of operations in accordance with the rotation of the bail 40 in this way, the spring portion 34 (see FIG. 3) always presses the bail 40 against the optical receptacle 10. It works in the same way. Therefore, when the hand is released from the bail 40, the bail 40 automatically returns to the position shown in FIG. 6A by the elastic force of the spring portion 34. That is, in FIG. 6C, the force vector from the actuator 10 toward the receptacle 10 is in the direction of arrow A. Since this vector is offset from the center of the rotating protrusion 11c of the receptacle, a rotational moment is applied to the bail 42, and the bail 42 is returned to the initial state (FIG. 6A).

このような構造を有する光データリンク１では、図２に示すように、光コネクタＣが装着された状態でベール４０を回転しようとするときに該ベール４０のストッパ４１ｃと光コネクタ本体部Ｃ２とが突き当たる構造を採用している。従来の回転ストッパは光コネクタＣのラッチ部Ｃ１に突き当たる構成であった。ラッチ部Ｃ１はコネクタＣとレセプタクル１０との係合を解除するためのもので、それ自身変形必要があり、その幾何学的形状の固体差が大きい。一方。光コネクタ本体部Ｃ２は、ラッチ部Ｃ１に比べ寸法ばらつきが小さく変形しにくい。従って、本発明では、回転ストッパとして機能するベール４０の第１のストッパ４１ｃとＬＣコネクタＣ（の本体部Ｃ２）との間のクリアランスを小さくできる。   In the optical data link 1 having such a structure, as shown in FIG. 2, when trying to rotate the bail 40 with the optical connector C mounted, the stopper 41c of the bail 40 and the optical connector main body C2 Adopts a structure that hits. The conventional rotation stopper is configured to abut against the latch portion C1 of the optical connector C. The latch portion C1 is for releasing the engagement between the connector C and the receptacle 10, and itself needs to be deformed, and there is a large difference in the geometric shape among the latch portions C1. on the other hand. The optical connector main body C2 has less dimensional variations and is less likely to deform than the latch C1. Therefore, in this invention, the clearance between the 1st stopper 41c of the bail 40 which functions as a rotation stopper, and LC connector C (main-body part C2) can be made small.

そのため、光データリンク１では、光コネクタＣがレセプタクルに装着されている状態では、ベール４０を微動させたときの係合突起３３ａの上下運動がほとんどない。光データリンク１は、光コネクタＣが光レセプタクル１０に装着された状態では外れることがないので、意図せずケージから抜き取られることがない。   Therefore, in the optical data link 1, when the optical connector C is mounted on the receptacle, there is almost no vertical movement of the engaging protrusion 33a when the bail 40 is finely moved. Since the optical data link 1 does not come off when the optical connector C is attached to the optical receptacle 10, it is not unintentionally removed from the cage.

本発明さらに以下の効果も奏する。
従来の光データリンクでは、光コネクタラッチ部Ｃ１とベール４０との間のクリアランス（すなわち係合状態におけるベールのがたつき）に起因する、係合突起の上下運動により、ケージの係合孔との係合が外れることがないように、図７の係合突起１０３の前端部１０３ａの曲率半径がケージを構成する金属板の厚みより小さく設定されている。例えば、ケージはステンレスで作られ、その厚みは０.２ｍｍまたは０.２５ｍｍであるので、上記曲率半径は０.２ｍｍ以下とされている。 The present invention also has the following effects.
In the conventional optical data link, the vertical movement of the engagement protrusion caused by the clearance between the optical connector latch portion C1 and the bail 40 (that is, rattling of the bale in the engaged state) causes the engagement hole of the cage to The curvature radius of the front end portion 103a of the engagement protrusion 103 in FIG. 7 is set smaller than the thickness of the metal plate constituting the cage. For example, the cage is made of stainless steel and has a thickness of 0.2 mm or 0.25 mm. Therefore, the radius of curvature is set to 0.2 mm or less.

しかし、例えば、アクチュエータを廉価な板金で合成した場合、上述の曲率半径は板金の板厚以下にすることはできない。曲げ半径を０.２ｍｍ以下とするには厚さ０.２ｍｍ以下の板金を採用する必要がある。これは、コスト面及び機械的強度の面から選択肢足り得ない。実際は厚さ０.３ｍｍ以上の板金を採用せざるを得ない。この場合、光コネクタが装着された状態でのアクチュエータのガタツキで係合突起と係合孔との係合が簡単に外れてしまうことがあった。   However, for example, when the actuator is synthesized with an inexpensive sheet metal, the above-described radius of curvature cannot be made equal to or less than the sheet thickness of the sheet metal. In order to set the bending radius to 0.2 mm or less, it is necessary to employ a sheet metal having a thickness of 0.2 mm or less. This is inadequate in terms of cost and mechanical strength. Actually, a sheet metal having a thickness of 0.3 mm or more must be adopted. In this case, the engagement between the engagement protrusion and the engagement hole may be easily disengaged due to rattling of the actuator with the optical connector attached.

それに対し、光データリンク１では、光コネクタ装着状態での光データリンク１の抜き取り防止のため、ベール４０を回転させたときにストッパ４１ｃ（図２参照）と光コネクタ本体部Ｃ２とが突き当たる構造を採用している。光コネクタ本体部Ｃ２は、そのラッチ部Ｃ１に比べ寸法ばらつきが小さくかつ変形させる必要もないため、光コネクタ本体部４２とストッパ４１ｃとの間のクリアランスは小さく設定できる。したがって、光コネクタＣが装着されている状態では、ベール４０を動かそうとしたときのアクチュエータ３０の係合突起３３ａの上下運動がほとんどない。   On the other hand, in the optical data link 1, in order to prevent the optical data link 1 from being pulled out when the optical connector is mounted, the stopper 41c (see FIG. 2) and the optical connector main body C2 abut against each other when the bail 40 is rotated. Is adopted. Since the optical connector main body C2 has a smaller dimensional variation than the latch C1 and does not need to be deformed, the clearance between the optical connector main body 42 and the stopper 41c can be set small. Therefore, in a state where the optical connector C is mounted, there is almost no vertical movement of the engagement protrusion 33a of the actuator 30 when trying to move the bail 40.

そのため、アクチュエータ３０の材料として０.２ｍｍより厚い板金を使った場合でも、光データリンク１は、光コネクタＣが光レセプタクル１０に装着された状態では外れることがないので、不用意に抜き取られることがない。   Therefore, even when a sheet metal thicker than 0.2 mm is used as the material of the actuator 30, the optical data link 1 will not be detached when the optical connector C is mounted on the optical receptacle 10, so that it may be pulled out carelessly. There is no.

また、光データリンク１において、ストッパ４１ｃを光コネクタ本体部Ｃ２ではあってもラッチ部Ｃ１側と反対側の段差部に突き当てる構造を採用した理由は以下の通りである。すなわち、突き当て箇所を従来の様にラッチ部側の段差に突き当てる構造では、当接部の周辺にラッチ部Ｃ１があるため、当該当接部を０.５ｍｍ程度の幅でしか形成できないが、本発明のように上記ラッチ部Ｃ１側の段差部と当接させる構造では、１ｍｍ以上の幅で形成することができるため、その機械的強度を高くすることができるからである。たとえば、当該ストッパ４１ｃを連結部の全長に渡って設けることも可能である（図８）。
なお、過回転防止ストッパ４１ｄは、光コネクタラッチ部Ｃ１との干渉を防ぐとともに機械的強度を確保するため、当接部４１ｃより短く且つ幅狭に形成されている。 In the optical data link 1, the reason why the stopper 41c is abutted against the stepped portion on the side opposite to the latch portion C1 side even if it is the optical connector main body portion C2 is as follows. That is, in the structure in which the abutting portion is abutted against the step on the side of the latch portion as in the prior art, since the latch portion C1 exists around the abutting portion, the abutting portion can be formed only with a width of about 0.5 mm. This is because the structure in contact with the stepped portion on the side of the latch portion C1 as in the present invention can be formed with a width of 1 mm or more, so that the mechanical strength can be increased. For example, the stopper 41c can be provided over the entire length of the connecting portion (FIG. 8).
The over-rotation prevention stopper 41d is formed shorter and narrower than the contact portion 41c in order to prevent interference with the optical connector latch portion C1 and ensure mechanical strength.

以下では、本発明の光データリンクに用いるベールの他の例について説明する。なお、各例において他の例と同様な部分については、同じ符号を付すことにより、その説明を省略する。
図８のベール５０は、図５のベール４０とは異なり、脚部５１を連結する連結部５２が脚部５１の前面に形成されている。ベール５０では、この連結部５２が、光コネクタ装着時のベールの回転ストッパとして機能する。言い換えれば、ベール５０は、図４のストッパ４１ｃが、脚部５１の前面に形成された連結部５２により構成されている。
このようにすることにより、この連結部５２にカラーラベルを貼ることができる。カラーラベルは、例えばＷＤＭ用光トランシーバにおいて、その波長種を表すため等に用いられるものである。 Hereinafter, another example of the bale used for the optical data link of the present invention will be described. In addition, about the part similar to another example in each example, the description is abbreviate | omitted by attaching | subjecting the same code | symbol.
8 differs from the veil 40 in FIG. 5 in that a connecting portion 52 for connecting the leg portion 51 is formed on the front surface of the leg portion 51. In the bail 50, the connecting portion 52 functions as a bale rotation stopper when the optical connector is mounted. In other words, the bail 50 is configured by the connecting portion 52 in which the stopper 41c of FIG.
By doing in this way, a color label can be stuck to this connection part 52. FIG. The color label is used, for example, to represent the wavelength type in a WDM optical transceiver.

図９のベール６０は、脚部６１の内側面に凸部６１ａが形成されている点で、図８のベール５０と異なる。この凸部６１ａは、図６（Ａ）に示すような初期状態（イニシャル位置）で、アクチュエータ３０の側面と当接することにより、ベール６０を当該イニシャル位置から容易に動かなくさせるためのものである。   The veil 60 in FIG. 9 is different from the bail 50 in FIG. 8 in that a convex portion 61 a is formed on the inner surface of the leg portion 61. This convex portion 61a is for making the bail 60 not easily move from the initial position by contacting the side surface of the actuator 30 in the initial state (initial position) as shown in FIG. .

図１０のベール７０は、連結部７１の内側面に凸部７１ａが形成されている点で、図５のベール４０と異なる。この凸部７１ａは、上記イニシャル位置でアクチュエータ３０の下面と当接することにより、ベール７０を当該イニシャル位置から容易に動かなくさせるためのものである。   The veil 70 in FIG. 10 is different from the bail 40 in FIG. 5 in that a convex portion 71 a is formed on the inner surface of the connecting portion 71. The convex portion 71a is for making the bail 70 not easily move from the initial position by contacting the lower surface of the actuator 30 at the initial position.

なお、ベールは、図４のように脚部４１の下方に連結部４２を設けておき、その上で、ストッパを脚部４１を連結するように幅広に形成しておき、カラーラベルが貼れるような構成でもよい。
また、図９の上記凸部６１ａは、図５のベール４０のように、脚部を連結する連結部が下面に形成されているものに設けても良い。凸部６１ａは両方の脚部に設けても良いし一方のみに設けても良い。 As shown in FIG. 4, the bail is provided with a connecting portion 42 below the leg portion 41, and then a stopper is formed wide so as to connect the leg portion 41 so that a color label can be attached. It may be a simple configuration.
Moreover, you may provide the said convex part 61a of FIG. 9 in the connection part which connects a leg part to the lower surface like the bale 40 of FIG. The convex portion 61a may be provided on both leg portions or only on one side.

また、図９のようにベールの内側面に上述の凸部を設ける場合は、ベール６０をイニシャル位置から容易に動かなくさせるために、当該凸部６１ａを、アクチュエータ３０ではなく、光レセプタクル１０の側面と当接するように形成してもよい。
ベールに上述の凸部６１ａや凸部７１ａを設ける場合は、イニシャル位置において、これら凸部６１ａ，７１ａと当接する部分（アクチュエータ３０の側面または下面、光レセプタクル１０の側面）に窪みを設けて、両者を嵌合させる構成にしてもよい。 Further, when the above-described convex portion is provided on the inner surface of the bail as shown in FIG. 9, the convex portion 61 a is not the actuator 30 but the optical receptacle 10 in order to prevent the bail 60 from easily moving from the initial position. You may form so that it may contact | abut with a side surface.
When providing the convex portion 61a or the convex portion 71a described above on the bale, a recess is provided in a portion (a side surface or a lower surface of the actuator 30 or a side surface of the optical receptacle 10) in contact with the convex portions 61a and 71a at the initial position. You may make it the structure which fits both.

また、ベールは、光コネクタと干渉しないように図５の過回転防止ストッパ４１ｄと当接部ストッパ４１ｃとを連結させる構造でもよい。この構造では、イニシャル位置から奥方向にベール４０を回転させようとしたときに当該連結部と光レセプタクルの側壁とが突き当たるので、イニシャル位置から奥方向にベール４０が回転するのを防ぐストッパとなる。   Further, the bail may have a structure in which the over-rotation preventing stopper 41d and the contact portion stopper 41c of FIG. 5 are coupled so as not to interfere with the optical connector. In this structure, when the bail 40 is rotated in the back direction from the initial position, the connecting portion and the side wall of the optical receptacle abut against each other, so that the bail 40 is prevented from rotating in the back direction from the initial position. .

なお、本発明の光データリンクでは、カム形状がシンプルになるため、ベールの回転動作とアクチュエータと上下運動が設計しやすくなる（遊びの部分を設計しやすくなる）。   In the optical data link of the present invention, since the cam shape is simple, it becomes easy to design the bale rotation operation, the actuator and the vertical movement (the play portion is easy to design).

１…光データリンク、１０…光レセプタクル、１１…レセプタクル部、１１ｃ…突起、１１ｄ…保持部、１２…搭載部、１２ｃ…側壁、１２ｄ…中央隔壁、１２ｅ…ポケット、１２ｆ…突起、２０…リンク本体部、３０…アクチュエータ、３１…本体部、３１ａ…側壁部、３１ｂ…連結部、３２…支点、３２ａ…軸、３３…係合部、３３ａ…係合突起、３４…バネ部、３４ａ…突起、４０，５０，６０，７０…ベール、４１，５１，６１…脚部、４１ａ…挿通孔、４１ｂ…カム面、４１ｃ…第１のストッパ、４１ｄ…第２のストッパ、４２，５２，７１…連結部。 DESCRIPTION OF SYMBOLS 1 ... Optical data link, 10 ... Optical receptacle, 11 ... Receptacle part, 11c ... Protrusion, 11d ... Holding part, 12 ... Mounting part, 12c ... Side wall, 12d ... Central partition, 12e ... Pocket, 12f ... Protrusion, 20 ... Link Body part 30 ... Actuator 31 ... Body part 31a ... Side wall part 31b ... Connection part 32 ... Supporting point 32a ... Shaft 33 ... Engagement part 33a ... Engagement projection 34 ... Spring part 34a ... Projection 40, 50, 60, 70 ... bale, 41, 51, 61 ... leg, 41a ... insertion hole, 41b ... cam surface, 41c ... first stopper, 41d ... second stopper, 42, 52, 71 ... Connecting part.

Claims (5)

光コネクタを受納し、ホスト装置に備えられたケージに装着され、光信号と電気信号との変換を行う光データリンクであって、
該光コネクタが装着される光レセプタクルと、
該光レセプタクルに保持され、該ケージに形成された係合孔と係合する突起を有するアクチュエータと、
該アクチュエータにシーソ運動を誘起し該突起を該係合孔から離脱させるベールと、を備え、
該ベールは、一対の脚部と、該一対の脚部を連結する連結部とからなり、該連結部は該光レセプタクルが該光コネクタを装着している状態で該光レセプタクルに対して該アクチュエータと同じ側に位置していることを特徴とする光データリンク。 An optical data link that receives an optical connector, is attached to a cage provided in a host device, and performs conversion between an optical signal and an electrical signal,
An optical receptacle to which the optical connector is attached;
An actuator having a protrusion held by the optical receptacle and engaged with an engagement hole formed in the cage;
A bail that induces a seesaw motion on the actuator and disengages the protrusion from the engagement hole,
The bail includes a pair of leg portions and a connecting portion for connecting the pair of leg portions, and the connecting portion is connected to the optical receptacle with the optical connector attached to the actuator. Optical data link, characterized in that it is located on the same side as 該ベールは該連結部が該光レセプタクル前面を横切ることができる様に該一対の脚部が該光レセプタクル側面に保持されており、
該一対の脚部それぞれの前面には、該光レセプタクルが該光コネクタを装着している際に該光コネクタに突き当たって該連結部の該光レセプタクル前面を横切る動きを阻止する第１のストッパを有していることを特徴とする請求項１の光データリンク。 The bail has the pair of legs held on the side of the optical receptacle so that the connecting portion can traverse the front surface of the optical receptacle.
A front end of each of the pair of legs is provided with a first stopper that prevents the movement of the coupling portion across the front surface of the optical receptacle by abutting against the optical connector when the optical connector is attached to the optical connector. The optical data link according to claim 1, further comprising: 該ベールは、該光レセプタクルに該光コネクタが装着されていない状態で、該光レセプタクルに突き当たって該ベールの過回転を防止するストッパをさらに有していることを特徴とする請求項１および２に記載の光データリンク。   3. The veil further includes a stopper that abuts against the optical receptacle and prevents the veil from over-rotating when the optical connector is not attached to the optical receptacle. Optical data link as described in. 該第１のストッパは、該一対の脚部を連結していることを特徴とする請求項１〜３のいずれか一項に記載の光データリンク。   The optical data link according to claim 1, wherein the first stopper connects the pair of legs. 該ベールは該脚部内面に凸部を有し、該凸部は該アクチュエータ又は該光レセプタクルに突き当たり該ベールの初期位置を規定することを特徴とする請求項１〜４のいずれか１項に記載の光データリンク。   The veil has a convex portion on the inner surface of the leg portion, and the convex portion abuts against the actuator or the optical receptacle to define an initial position of the bale. The optical data link described.
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