JP2010224021A - Optical connector plug - Google Patents

Optical connector plug Download PDF

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JP2010224021A
JP2010224021A JP2009068578A JP2009068578A JP2010224021A JP 2010224021 A JP2010224021 A JP 2010224021A JP 2009068578 A JP2009068578 A JP 2009068578A JP 2009068578 A JP2009068578 A JP 2009068578A JP 2010224021 A JP2010224021 A JP 2010224021A
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outer case
spring
plug
holding
abutting
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JP4783443B2 (en
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Tomoshi Uramatsu
知史 浦松
Tsugio Anpo
次雄 安保
Michiyasu Watabe
道泰 渡部
Kazuyuki Miyake
和幸 三宅
Moriyuki Fujita
盛行 藤田
Shoji Nasu
章二 那須
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Mitsubishi Cable Industries Ltd
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Mitsubishi Cable Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a shutter plate which prevents dust entering to inside and to allow the shutter plate move smoothly. <P>SOLUTION: The backward motion of an outer case 20 is restricted by abutting a leaf spring member 21 to an abutting spring 15 when the optical connector plug is not connected to a counterpart plug, a slider part 18 is moved backward and the shutter plate 22 fixed on the slider part is pulled up to release the abutting of the leaf spring member when the optical connector plug is connected to the counterpart plug, and the outer case 20 and the slider part are moved backward to project a ferrule 13 toward the counterpart plug. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、光ファイバケーブル同士を接続するための光コネクタプラグに関するものである。   The present invention relates to an optical connector plug for connecting optical fiber cables.

光通信等に用いられる光ファイバケーブルの接続部においては、光ファイバの端面を損傷したり塵埃等が付着すると、その光伝達効率が極端に劣化するという問題がある。   In a connection part of an optical fiber cable used for optical communication or the like, there is a problem that the optical transmission efficiency is extremely deteriorated when the end face of the optical fiber is damaged or dust or the like adheres.

そのために、特許文献1には、光ファイバ端面の前方に可動の遮蔽片を設け、使用時にこの遮蔽片を移動する技術が開示されている。   For this purpose, Patent Document 1 discloses a technique in which a movable shielding piece is provided in front of the end face of the optical fiber and the shielding piece is moved during use.

特開2006−276782号公報JP 2006-276782 A

しかし上述の特許文献1では、遮蔽片は光ファイバの前方のみを小さく覆うようにしているので、コネクタ内に塵埃が入り込むことを防止できず、内部に入り込んだ塵埃が光ファイバの端部に付着することが避けられない。   However, in the above-mentioned Patent Document 1, since the shielding piece covers only the front of the optical fiber small, it cannot prevent the dust from entering the connector, and the dust that has entered inside adheres to the end of the optical fiber. Inevitable to do.

本発明の目的は、上述の課題を解消し、内部に塵埃が入り込むことを防止するシャッタ板を設けると共に、このシャッタ板が円滑に作動するようにした光コネクタプラグを提供することにある。   An object of the present invention is to provide an optical connector plug in which the above-described problems are solved and a shutter plate that prevents dust from entering inside is provided, and the shutter plate operates smoothly.

上記目的を達成するための本発明に係る光コネクタプラグは、 光ファイバケーブルを保持するための保持金具と、前記光ファイバの先端のファイバ芯線を保持するフェルールと、該フェルールと前記保持金具とを保持するプラグフレームと、前記保持金具とプラグフレームとを外方から覆い保持する固定の把持部材と、該把持部材の前端に前後動自在に取り付け該把持部材に対し前方に付勢し相手側プラグと嵌合するアウタケースと、該アウタケースの後部に移動自在に取り付けると共に該アウタケースに向けて付勢するスライダ部と、該スライダ部に取り付け前記プラグフレームの前部を遮蔽するシャッタ板と、前記アウタケースの内側に前記把持部材を囲むように固定する金属板から成るばね部材と、前記プラグフレームに取り付け前記ばね部材に当接する金属製の当接ばねとを有する光コネクタプラグであって、前記相手側プラグと非接続時においては前記ばね部材の突き当て部が前記当接ばねと当接して前記アウタケースの前記把持部材に対する後方への移動を規制し、前記相手側プラグとの接続に際し、前記スライダ部を後方に移動させることにより、前記シャッタ板を引き上げると共に前記ばね部材の突き当て部と前記当接ばねとの当接を解除し、前記アウタケース、前記スライダ部を後方に移動し、前記フェルールを前記相手側プラグに向けて突出することを特徴とする。   In order to achieve the above object, an optical connector plug according to the present invention comprises a holding fitting for holding an optical fiber cable, a ferrule holding a fiber core wire at the tip of the optical fiber, the ferrule and the holding fitting. A plug frame to be held, a fixed gripping member that covers and holds the holding metal fitting and the plug frame from the outside, and is attached to the front end of the gripping member so as to be movable back and forth, and is urged forward with respect to the gripping member. An outer case that fits to the outer case, a slider portion that is movably attached to the rear portion of the outer case and biased toward the outer case, and a shutter plate that is attached to the slider portion and shields the front portion of the plug frame, A spring member made of a metal plate that is fixed inside the outer case so as to surround the gripping member, and before being attached to the plug frame An optical connector plug having a metal abutting spring abutting against a spring member, wherein the abutting portion of the spring member abuts against the abutting spring when not connected to the mating plug, and the outer case Is controlled to move backward with respect to the gripping member, and when connecting to the mating plug, the slider portion is moved backward to pull up the shutter plate and to contact the abutting portion of the spring member. The contact with the spring is released, the outer case and the slider portion are moved rearward, and the ferrule protrudes toward the mating plug.

本発明に係る光コネクタプラグによれば、摺動部に2つの金属ばねを用いることにより、防塵のためのシャッタ板を円滑にかつ耐久性を持たせて繰り返し駆動することができる。   According to the optical connector plug of the present invention, by using two metal springs for the sliding portion, it is possible to smoothly and repeatedly drive the dust-proof shutter plate with durability.

保持金具と管金具を上方から見た斜視図である。It is the perspective view which looked at the holding metal fitting and the pipe metal fitting from the upper part. 保持金具を下方から見た斜視図である。It is the perspective view which looked at the holding metal fitting from the lower part. 光ファイバケーブルの斜視図である。It is a perspective view of an optical fiber cable. 光ファイバケーブルに保持金具等を挿通した状態の斜視図である。It is a perspective view of the state which inserted the holding metal fitting etc. in the optical fiber cable. ブーツの断面図である。It is sectional drawing of boots. ファイバ芯線をフェルールに取り付けた状態の斜視図である。It is a perspective view of the state which attached the fiber core wire to the ferrule. ファイバ芯線をフェルールに取り付けた状態の断面図である。It is sectional drawing of the state which attached the fiber core wire to the ferrule. プラグフレームの拡大斜視図である。It is an expansion perspective view of a plug frame. フェルールにプラグフレームを取り付けた状態の斜視図である。It is a perspective view of the state which attached the plug frame to the ferrule. フェルールにプラグフレームを取り付けた状態の断面図である。It is sectional drawing of the state which attached the plug frame to the ferrule. 管金具を所定位置に配置した斜視図である。It is the perspective view which has arrange | positioned the pipe fitting in the predetermined position. かしめ部をかしめた状態の斜視図である。It is a perspective view in the state where a caulking part was caulked. ブーツを所定位置に移動した状態の斜視図である。It is a perspective view of the state which moved the boot to the predetermined position. 把持部材を取り付けた状態の斜視図である。It is a perspective view of the state where the holding member was attached. シャッタ部材の分解斜視図である。It is a disassembled perspective view of a shutter member. スライド部材の断面図である。It is sectional drawing of a slide member. アウタケースの断面図である。It is sectional drawing of an outer case. アウタケースにスライダを取り付けた状態の斜視図である。It is a perspective view of the state where the slider was attached to the outer case. アウタケース内に板ばね部材を挿着した状態の斜視図である。It is a perspective view in the state where a leaf spring member was inserted in the outer case. 把持部材にシャッタ部材を取り付けた状態の斜視図である。It is a perspective view of the state where the shutter member was attached to the holding member. 断面図である。It is sectional drawing. スライダを操作した状態の断面図である。It is sectional drawing of the state which operated the slider. アウタケースが押し込まれた状態の断面図である。It is sectional drawing of the state in which the outer case was pushed in. フェルールが突出された状態の断面図である。It is sectional drawing of the state in which the ferrule protruded.

本発明を図示の実施例に基づいて詳細に説明する。
図1は光ファイバを保持する保持金具1と管金具2を上方から見た斜視図、図2は保持金具1を下方から見た斜視図を示している。保持金具1は1枚の例えば黄銅から成る導電金属板を打ち抜いて形成され、保持金具1の前部には後述するフェルールを周囲から包囲する円筒部3、円筒部3の後方の底部には管金具2の前方への位置決めをするための位置決め突起4、中間部には光ファイバケーブルの外被部の端部を管金具2と共にかしめ止める管金具かしめ部5、後部には光ファイバケーブルの外被部をかしめ止める外被かしめ部6が設けられている。
The present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 is a perspective view of a holding fitting 1 and a pipe fitting 2 for holding an optical fiber as viewed from above, and FIG. 2 is a perspective view of the holding fitting 1 as viewed from below. The holding metal fitting 1 is formed by punching a conductive metal plate made of, for example, brass. A cylindrical portion 3 that surrounds a ferrule, which will be described later, is surrounded by a front portion of the holding metal fitting 1 and a tube at the bottom of the cylindrical portion 3 at the rear. A positioning projection 4 for positioning the metal fitting 2 forward, a tube fitting caulking portion 5 for caulking the end portion of the jacket portion of the optical fiber cable together with the tube fitting 2 at the middle portion, and an optical fiber cable outside at the rear portion An outer caulking portion 6 that caulks the covering portion is provided.

円筒部3には一部を内側に折り曲げたばね係止部3a、側部には後述するプラグフレームに対するフレーム係止部3bが設けられている。管金具かしめ部5は断面略U字状のかしめ片5a、5bを有し、管金具かしめ部5の底部には長手方向と直交する方向に、例えば2個の矩形状のスリット孔5cが設けられている。また外被かしめ部6には、かしめ片5a、5bよりも稍々小さな断面略U字状のかしめ片6a、6bが設けられている。かしめ片5a、5bの管金具かしめ部5側には、後述するブーツに対するブーツ係止部7が形成されている。   The cylindrical portion 3 is provided with a spring locking portion 3a that is partially bent inward, and a side portion is provided with a frame locking portion 3b for a plug frame described later. The pipe fitting caulking portion 5 has caulking pieces 5a and 5b having a substantially U-shaped cross section, and, for example, two rectangular slit holes 5c are provided in the bottom of the pipe fitting caulking portion 5 in a direction perpendicular to the longitudinal direction. It has been. Further, the outer cover caulking portion 6 is provided with caulking pieces 6a and 6b having a substantially U-shaped cross section, which are often smaller than the caulking pieces 5a and 5b. On the pipe fitting caulking portion 5 side of the caulking pieces 5a and 5b, a boot locking portion 7 for a boot described later is formed.

一方、管金具2は例えば変形し難いようにSUSから成る円筒形とされ、光ファイバケーブルの外被部を挿通し、保持金具1の管金具かしめ部5により光ファイバケーブルのファイバ芯線に沿って備えられた抗張力繊維を共働してかしめ止めする。なお、管金具2の後端部にはフランジ部2aが上半部のみに形成されている。   On the other hand, the pipe fitting 2 is formed in a cylindrical shape made of SUS so as not to be deformed, for example, is inserted through the jacket portion of the optical fiber cable, and along the fiber core line of the optical fiber cable by the pipe fitting caulking portion 5 of the holding fitting 1. Cooperate the provided tensile strength fiber to stop it. In addition, the flange part 2a is formed in the rear half part of the pipe fitting 2 only in the upper half part.

保持金具1に光ファイバケーブルを固定するには、図3に示すように光ファイバケーブル10の先端における外被部10aを切り取り、先端から光ファイバ10bと例えば石英系ガラスファイバから成るファイバ芯線10cを露出させると共に、外被部10aの切断面から光ファイバ10bに沿って配置されている補強用の抗張力繊維10dを引き出しておく。   In order to fix the optical fiber cable to the holding metal fitting 1, as shown in FIG. 3, the jacket portion 10a at the tip of the optical fiber cable 10 is cut off, and the optical fiber 10b and the fiber core wire 10c made of, for example, silica glass fiber are cut from the tip. The reinforcing tensile fiber 10d arranged along the optical fiber 10b is pulled out from the cut surface of the jacket portion 10a while being exposed.

次に、図4に示すように、光ファイバケーブル10の先端側から、ブーツ11、管金具2、保持金具1の円筒部3、内部圧縮コイルばね12の順に挿通する。   Next, as shown in FIG. 4, the boot 11, the pipe fitting 2, the cylindrical portion 3 of the holding fitting 1, and the internal compression coil spring 12 are inserted in this order from the distal end side of the optical fiber cable 10.

ブーツ11は保持金具1のかしめ部5、6に周設し保護するための合成樹脂材から成り、図5の断面図にも示すように、略角筒形とされ軸方向の中心にはケーブル挿通孔11aが設けられている。ブーツ11の前端上方には前方に向けて庇部11bが張り出され、前端内側部には保持金具1に設けたブーツ係止部7に係止する係止凹部11cが設けられ、下方には後述する下側圧縮コイルばねを取り付けるための長手方向に沿った棒状のばね押さえ部11dが前方に向けて突出されている。また、ブーツ11の後部のケーブル挿通孔11aの端部11eは丸く面取りされ、光ファイバケーブル10を任意の方向に引き出し得るようにされている。   The boot 11 is made of a synthetic resin material that surrounds and protects the caulking portions 5 and 6 of the holding metal fitting 1 and has a substantially rectangular tube shape as shown in the sectional view of FIG. An insertion hole 11a is provided. Above the front end of the boot 11, a flange 11b projects forward, and on the inner side of the front end, a locking recess 11c that locks to the boot locking portion 7 provided on the holding metal fitting 1 is provided. A bar-shaped spring pressing portion 11d along the longitudinal direction for attaching a lower compression coil spring, which will be described later, protrudes forward. Further, the end portion 11e of the cable insertion hole 11a at the rear portion of the boot 11 is rounded and chamfered so that the optical fiber cable 10 can be pulled out in an arbitrary direction.

内部圧縮コイルばね12は保持金具1の円筒部3と光ファイバケーブル10の間の隙間に配置され、後端部が円筒部3のばね係止部3aに係止され、後述するフェルールを前方に付勢するために用いられている。   The internal compression coil spring 12 is disposed in the gap between the cylindrical portion 3 of the holding metal fitting 1 and the optical fiber cable 10, and the rear end portion is locked to the spring locking portion 3 a of the cylindrical portion 3. Used to energize.

ファイバ芯線10cは図6、図7に示すようにフェルール13の挿通孔13aに挿入されると共に接着により固定されている。フェルール13の前端部は例えばセラミック材から形成され、後端部は金属部材から成り、金属部材から成る円柱部13bに内部圧縮コイルばね12が周設され、段部に内部圧縮コイルばね12の前端部が当接するようにされている。ファイバ芯線10cを挿通孔13aに挿入した後に、ファイバ芯線10cの先端がフェルール13の先端と面一となるように、カッタなどで切断加工する。   The fiber core wire 10c is inserted into the insertion hole 13a of the ferrule 13 and fixed by bonding as shown in FIGS. The front end portion of the ferrule 13 is made of, for example, a ceramic material, the rear end portion is made of a metal member, the internal compression coil spring 12 is provided around a cylindrical portion 13b made of the metal member, and the front end of the internal compression coil spring 12 is provided at the step portion. The parts are in contact with each other. After inserting the fiber core wire 10 c into the insertion hole 13 a, the fiber core wire 10 c is cut with a cutter or the like so that the tip of the fiber core wire 10 c is flush with the tip of the ferrule 13.

図8はプラグフレーム14の拡大斜視図を示し、合成樹脂製から成るプラグフレーム14の内部には、フェルール13を収容する円筒部が設けられ、外側は略角筒形とされている。プラグフレーム14の上面部には、先端側に断面矩形状に形成された矩形突条14aと、その後方に、後方に開口する開口部14bが設けられており、開口部14bの両側には凹状のばね止め部14cが形成されている。また、プラグフレーム14の側部には前方突起14d、後方突起14e、係止孔14fが設けられている。   FIG. 8 is an enlarged perspective view of the plug frame 14, and a cylindrical portion that accommodates the ferrule 13 is provided inside the plug frame 14 made of synthetic resin, and the outer side has a substantially rectangular tube shape. The upper surface of the plug frame 14 is provided with a rectangular protrusion 14a formed in a rectangular cross section on the tip end side, and an opening 14b that opens rearward on the rear side, and a concave shape on both sides of the opening 14b. The spring stopper 14c is formed. In addition, a front projection 14d, a rear projection 14e, and a locking hole 14f are provided on the side portion of the plug frame 14.

フェルール13の周囲にこのプラグフレーム14が図9に示すように被着されている。プラグフレーム14に設けた係止孔14fは保持金具1のフレーム係止部3bに係止して保持金具1に固定され、プラグフレーム14の先端からファイバ芯線10cを保持するフェルール13が突出する。   The plug frame 14 is attached around the ferrule 13 as shown in FIG. The locking hole 14f provided in the plug frame 14 is locked to the holding metal fitting 1 by being engaged with the frame engaging portion 3b of the holding metal 1, and the ferrule 13 that holds the fiber core wire 10c protrudes from the tip of the plug frame 14.

図10はその断面図であり、フェルール13の前方の段部がプラグフレーム14の内側突起14gに当接し、内部圧縮コイルばね12がフェルール13の円柱部13bの段部と保持金具1のばね係止部3aとの間に配設され、フェルール13を前方に付勢している。なお、この際に光ファイバケーブル10の抗張力繊維10dは、保持金具1の管金具かしめ部5上に折り返しておく。   FIG. 10 is a cross-sectional view thereof, in which the step portion in front of the ferrule 13 abuts on the inner projection 14 g of the plug frame 14, and the internal compression coil spring 12 is engaged with the step portion of the column portion 13 b of the ferrule 13 and the spring of the holding metal fitting 1. It is arrange | positioned between the stop parts 3a and urges | biases the ferrule 13 ahead. At this time, the tensile strength fiber 10 d of the optical fiber cable 10 is folded back onto the tube fitting caulking portion 5 of the holding fitting 1.

管金具2は図11に示すように、その前端が保持金具1の位置決め突起4に係止するように、前方の管金具かしめ部5上に移動させる。このとき、抗張力繊維10dを管金具かしめ部5と管金具2の外面の下側の長手方向に沿って位置させる。   As shown in FIG. 11, the pipe fitting 2 is moved onto the front fitting fitting portion 5 so that the front end thereof is locked to the positioning protrusion 4 of the holding fitting 1. At this time, the tensile strength fiber 10 d is positioned along the longitudinal direction on the lower side of the outer surface of the pipe fitting caulking portion 5 and the pipe fitting 2.

図12に示すように、管金具かしめ部5のかしめ片5a、5bを折り畳み、抗張力繊維10dを管金具2との間に挟んで管金具2を治具により強固にかしめる。そのとき、管金具2のフランジ部2aはかしめ片5a、5bの後端に配置され、位置決め突起4と共働して管金具2の前方への移動が規制される。また、強度の大きい管金具2は変形することなくかしめ止めされ、抗張力繊維10dが管金具かしめ部5の2つのスリット孔5cに喰い込み、同時に外被かしめ部6のかしめ片6a、6bにより、光ファイバケーブル10の外被部10aがかしめられ固定される。   As shown in FIG. 12, the caulking pieces 5 a and 5 b of the pipe fitting caulking portion 5 are folded, and the tensile strength fiber 10 d is sandwiched between the pipe fitting 2 and the pipe fitting 2 is firmly caulked with a jig. At that time, the flange portion 2a of the pipe fitting 2 is disposed at the rear end of the caulking pieces 5a and 5b, and the forward movement of the pipe fitting 2 is restricted in cooperation with the positioning projection 4. Further, the high-strength pipe fitting 2 is caulked without deformation, and the tensile strength fiber 10d bites into the two slit holes 5c of the pipe fitting caulking portion 5, and at the same time by the caulking pieces 6a and 6b of the outer caulking portion 6, The jacket portion 10a of the optical fiber cable 10 is caulked and fixed.

このようにして、光ファイバケーブル10は2つのかしめ部5、6により固定され、特に抗張力繊維10dを管金具2と保持金具1の間に挟み込んでかしめるので、光ファイバケーブル10の保持金具1に対する前後方向への移動が確実に防止される。   In this way, the optical fiber cable 10 is fixed by the two caulking portions 5 and 6, and in particular, the tensile strength fiber 10 d is sandwiched between the pipe fitting 2 and the holding fitting 1 and caulked, so that the holding fitting 1 of the optical fiber cable 10. The movement in the front-rear direction with respect to is reliably prevented.

図13に示すようにブーツ11を光ファイバケーブル10に沿って前方に移動し、庇部11bをプラグフレーム14の後部に突き当て、庇部11bによりかしめ部5、6を覆い、保持金具1の係止部7をブーツ11の係止凹部11cに係止することにより、ブーツ11の前後方向への移動が防止される。   As shown in FIG. 13, the boot 11 is moved forward along the optical fiber cable 10, the flange portion 11 b is abutted against the rear portion of the plug frame 14, the caulking portions 5 and 6 are covered by the flange portion 11 b, and By locking the locking portion 7 in the locking recess 11 c of the boot 11, movement of the boot 11 in the front-rear direction is prevented.

ここで、プラグフレーム14上のばね止め部14cに、薄肉金属板から成る当接ばね15を開口部14bを覆うように取り付ける。当接ばね15は略T字状とされ、T字の水平部の両端がばね止め部14cに固定され、鉛直部の先端は上方に持ち上り、先端の下端は内側に折曲されている。   Here, a contact spring 15 made of a thin metal plate is attached to the spring stopper 14c on the plug frame 14 so as to cover the opening 14b. The contact spring 15 is substantially T-shaped, both ends of the T-shaped horizontal portion are fixed to the spring stopper 14c, the tip of the vertical portion is lifted upward, and the lower end of the tip is bent inward.

更に、合成樹脂製の把持部材16が図14(a)、(b)に示すように、プラグフレーム14及びブーツ11の前端を覆うように取り付けられている。把持部材16は長形の略四角枠とされ、上面部にはその中央の長さ方向に上側開口部16aが形成され、また上面部の後端側に上側突出部16bが設けられている。また、下面中央部には、後述する下側圧縮コイルばねを挿入するために、その後端側に長さ方向に延在する下側筒状部16cが形成されている。また、把持部材16の前部の両側面部には大小2つの矩形孔を連結した係止孔16dが設けられ、更に後部の両側面部には把持部16eが設けられ、把持部16eには上下方向に指に対する滑り止めの複数の溝が設けられている。   Furthermore, as shown in FIGS. 14A and 14B, a synthetic resin gripping member 16 is attached so as to cover the plug frame 14 and the front end of the boot 11. The gripping member 16 is a long, substantially rectangular frame, and an upper opening 16a is formed in the upper portion of the upper surface in the central length direction, and an upper protrusion 16b is provided on the rear end side of the upper surface. Further, a lower cylindrical portion 16c extending in the length direction is formed on the rear end side in order to insert a lower compression coil spring, which will be described later, at the center of the lower surface. Further, a locking hole 16d connecting two large and small rectangular holes is provided on both side surface portions of the front portion of the gripping member 16, a gripping portion 16e is further provided on both side surface portions of the rear portion, and the gripping portion 16e has a vertical direction. There are provided a plurality of anti-slip grooves for the fingers.

このように、プラグフレーム14を把持部材16により覆うことにより、把持部材16に設けた上側開口部16a内にプラグフレーム14の矩形突条14a、当接ばねが位置する。また、把持部材16はプラグフレーム14に対し若干前後移動可能とされている。つまり、プラグフレーム14の側部に設けた前方突起14d、後方突起14eが把持部材16の係止孔16dに係合して、把持部材16はプラグフレーム14に対する前方及び後方に制限された所定範囲内で移動可能とされている。   Thus, by covering the plug frame 14 with the gripping member 16, the rectangular protrusion 14 a and the contact spring of the plug frame 14 are positioned in the upper opening 16 a provided in the gripping member 16. Further, the gripping member 16 can be moved slightly back and forth with respect to the plug frame 14. That is, the front protrusion 14d and the rear protrusion 14e provided on the side of the plug frame 14 engage with the locking holes 16d of the gripping member 16, and the gripping member 16 is limited to a predetermined range with respect to the plug frame 14. It is possible to move within.

図15はシャッタ部材17の分解斜視図を示し、合成樹脂製のスライダ部18と、このスライダ部18に収納する上側圧縮コイルばね19と、スライダ部18を組み合わせる合成樹脂製のアウタケース20、アウタケース20内に収納する金属板から成る板ばね部材21とから構成されている。   FIG. 15 is an exploded perspective view of the shutter member 17, and a synthetic resin slider portion 18, an upper compression coil spring 19 housed in the slider portion 18, and a synthetic resin outer case 20 that combines the slider portion 18. It is comprised from the leaf | plate spring member 21 which consists of a metal plate accommodated in the case 20. FIG.

スライダ部18には、平板状に形成された部材本体の中央長手方向に、上側圧縮コイルばね19を装着するためのばね溝部18aが設けられ、スライダ部18の後部に操作ノブ18bが形成されている。また、スライダ部18の下面には可撓性を有する弾性金属板から成るシャッタ板22が固定されている。このシャッタ板22はアウタケース20の前部内を覆う長さと幅を有している。また、シャッタ板22はくの字状に形成され、後端がスライダ部18のヒンジを介した折返し部18cにより挟み込まれて下面後部に固定されている。なお、折返し部18cの前端は傾斜面18dとされている。   The slider portion 18 is provided with a spring groove portion 18a for mounting the upper compression coil spring 19 in the central longitudinal direction of the member body formed in a flat plate shape, and an operation knob 18b is formed at the rear portion of the slider portion 18. Yes. A shutter plate 22 made of an elastic metal plate having flexibility is fixed to the lower surface of the slider portion 18. The shutter plate 22 has a length and a width that cover the inside of the front portion of the outer case 20. Further, the shutter plate 22 is formed in a U-shape, and the rear end is sandwiched by the folded portion 18 c via the hinge of the slider portion 18 and is fixed to the lower rear portion. The front end of the folded portion 18c is an inclined surface 18d.

図17はアウタケース20の断面図を示し、アウタケース20は矩形筒状の中央筒状部20aの上側に、先端側を閉じ後端側を開口した横長の上側筒状部20bが設けられている。また、中央筒状部20aの下側には、後方に延びるように形成されると共に、前端を閉じ後端部を開口し、把持部材16の下側筒状部16cを外側から覆う下側溝状部20cが設けられている。更に、上側筒状部20bの中央筒状部20a側にはシャッタ出入口20dが設けられている。   FIG. 17 shows a cross-sectional view of the outer case 20, and the outer case 20 is provided with a horizontally long upper cylindrical portion 20b with the front end side closed and the rear end side opened on the upper side of the rectangular cylindrical central cylindrical portion 20a. Yes. Further, a lower groove shape is formed below the central cylindrical portion 20a so as to extend rearward, closes the front end, opens the rear end portion, and covers the lower cylindrical portion 16c of the gripping member 16 from the outside. A portion 20c is provided. Further, a shutter entrance / exit 20d is provided on the central tubular portion 20a side of the upper tubular portion 20b.

上側筒状部20bの上面部には、その中央に後端側に延びるように形成され、スライダ部18のばね溝部18aを覆うカバー部20eが設けられ、その後端には下側圧縮コイルばね19の後端を係止するための下方に垂下する係止部20fが形成されている。また、中央筒状部20a内には、カバー部20eの基端の両側のそれぞれに、下方に突出する突起部20gが設けられている。更に、下側溝状部20c内の前部には、下側圧縮コイルばねの前端を固定する突起20hが後方に向けて突設されている。   A cover portion 20e is provided on the upper surface portion of the upper cylindrical portion 20b so as to extend to the rear end side at the center thereof, and covers the spring groove portion 18a of the slider portion 18. The lower compression coil spring 19 is provided at the rear end thereof. A locking portion 20f that hangs downward is formed to lock the rear end of the frame. Further, in the central cylindrical portion 20a, projections 20g projecting downward are provided on both sides of the base end of the cover portion 20e. Further, a projection 20h for fixing the front end of the lower compression coil spring is provided at the front portion in the lower groove portion 20c so as to protrude rearward.

シャッタ部材17を組立てるには、図18に示すように、アウタケース20の後部にスライダ部18を嵌合する。上側圧縮コイルばね19をばね溝部18a内に装着したスライダ部18は、アウタケース20の上側筒状部20b内に入り込み、シャッタ板22がアウタケース20のシャッタ出入口20dを介して中央筒状部20a内に挿し込まれる。上側圧縮コイルばね19の後端はアウタケース20の係止部20fにより押さ込まれている。   In order to assemble the shutter member 17, as shown in FIG. 18, the slider portion 18 is fitted to the rear portion of the outer case 20. The slider portion 18 having the upper compression coil spring 19 mounted in the spring groove portion 18 a enters the upper cylindrical portion 20 b of the outer case 20, and the shutter plate 22 passes through the shutter inlet / outlet 20 d of the outer case 20 and the central cylindrical portion 20 a. It is inserted in. The rear end of the upper compression coil spring 19 is pushed by the locking portion 20 f of the outer case 20.

従って、スライダ部18はアウタケース20に対し前後動が自在であると共に、上側圧縮コイルばね19により前方のアウタケース20側に付勢され、シャッタ板22が中央筒状部20a内を閉塞するように押し出されている。また、アウタケース20の下側溝状部20cに下側圧縮コイルばね23が配置され、その前端は突起20hに挿入されている。   Accordingly, the slider portion 18 can freely move back and forth with respect to the outer case 20 and is urged toward the front outer case 20 by the upper compression coil spring 19 so that the shutter plate 22 closes the inside of the central cylindrical portion 20a. Has been pushed out. Further, the lower compression coil spring 23 is disposed in the lower groove portion 20c of the outer case 20, and the front end thereof is inserted into the protrusion 20h.

なお、スライダ部18と把持部材16の接触は精密な寸法精度により微妙な感触を要する上に、繰り返しの使用により摩耗が生じ易いために、前述の金属製の当接ばね15と金属板を打ち抜いて形成した板ばね部材21が介在されている。板ばね部材21は図15に示すように断面コ字形に折曲され、各個所に切り込みが設けられている。上面には後方に持ち上がった板ばね部21aが形成され、その先端には下方に折曲した突き当て部21bが設けられている。また、両側部にはアウタケース20への係止部21c、プラグフレーム14との係止部21d、把持部材16に対するがた防止となる押さえ部21eが設けられている。この板ばね部材21は図19に示すようにアウタケース20の後部からアウタケース20内に挿入されている。   Note that the contact between the slider 18 and the gripping member 16 requires a delicate feel due to precise dimensional accuracy, and wear is likely to occur due to repeated use. Therefore, the metal contact spring 15 and the metal plate are punched out. A leaf spring member 21 formed in this manner is interposed. As shown in FIG. 15, the leaf spring member 21 is bent into a U-shaped cross section, and cuts are provided at various points. A leaf spring portion 21a lifted rearward is formed on the upper surface, and an abutting portion 21b bent downward is provided at the tip thereof. Further, a locking portion 21c for the outer case 20, a locking portion 21d for the plug frame 14, and a pressing portion 21e for preventing rattling against the gripping member 16 are provided on both sides. The leaf spring member 21 is inserted into the outer case 20 from the rear portion of the outer case 20 as shown in FIG.

図20(a)、(b)は図18、図19に示すように組立てたシャッタ部材17を把持部材16の先端に取り付け、ほぼ完成した光コネクタプラグの斜視図であり、図21は断面図である。シャッタ部材17を把持部材16の先端に取り付けることにより、板ばね部材21の板ばね部21aの先端の突き当て部21bは、当接ばね15の前端と当接する。また、下側圧縮コイルばね23の後端部をブーツ11のばね押さえ部11dに係止する。   20 (a) and 20 (b) are perspective views of the optical connector plug almost completed by attaching the shutter member 17 assembled as shown in FIGS. 18 and 19 to the tip of the gripping member 16, and FIG. 21 is a sectional view. It is. By attaching the shutter member 17 to the tip of the gripping member 16, the abutting portion 21 b at the tip of the leaf spring portion 21 a of the leaf spring member 21 comes into contact with the front end of the contact spring 15. Further, the rear end portion of the lower compression coil spring 23 is locked to the spring pressing portion 11 d of the boot 11.

これにより、シャッタ部材17はアウタケース20と共に下側圧縮コイルばね23により前方に付勢されるが、板ばね部材21の突き当て部21bがプラグフレーム14の矩形突条14aに係止することにより、前方への移動は規制される。また、板ばね部材21の突き当て部21bが当接ばねに当接するため、アウタケース20に前方から力が加えられても、アウタケース20は後方に移動されることはない。   As a result, the shutter member 17 is urged forward together with the outer case 20 by the lower compression coil spring 23, but the abutting portion 21 b of the leaf spring member 21 is engaged with the rectangular protrusion 14 a of the plug frame 14. Forward movement is restricted. Further, since the abutting portion 21b of the leaf spring member 21 contacts the contact spring, the outer case 20 is not moved rearward even if a force is applied to the outer case 20 from the front.

スライダ部18に取り付けられたシャッタ板22は、アウタケース20の上側筒状部20bからシャッタ出入口20dを介して中央筒状部20a内に押し出され、フェルール13の前方におけるアウタケース20の中央筒状部20aの開口のほぼ全面が遮蔽されている。これにより、この光ファイバコネクタに相手側プラグが接続されていない状態において、光ファイバケーブル10のファイバ芯線10cは機械的に保護され、光ファイバコネクタの内部への防塵対策となる。   The shutter plate 22 attached to the slider portion 18 is pushed into the central cylindrical portion 20a from the upper cylindrical portion 20b of the outer case 20 through the shutter inlet / outlet 20d, and the central cylindrical shape of the outer case 20 in front of the ferrule 13 is reached. Almost the entire opening of the portion 20a is shielded. As a result, in a state where the counterpart plug is not connected to the optical fiber connector, the fiber core wire 10c of the optical fiber cable 10 is mechanically protected, and it is a measure against dust inside the optical fiber connector.

この光ファイバコネクタを相手側プラグと接続するには、先ず把持部材16の把持部16eを掴んで光コネクタプラグを持ち、スライダ部18の操作ノブ18bを指で後方に押して、図22に示すように、スライダ部18を上側圧縮コイルばね19に抗してアウタケース20に対して後端側に移動させる。それまでは、板ばね部材21の先端が当接ばね15の先端を当接しているので、アウタケース20の後方への移動は規制されている。   In order to connect this optical fiber connector to the mating plug, first, the gripping portion 16e of the gripping member 16 is gripped to hold the optical connector plug, and the operation knob 18b of the slider portion 18 is pushed backward with a finger, as shown in FIG. Then, the slider portion 18 is moved to the rear end side with respect to the outer case 20 against the upper compression coil spring 19. Until then, since the tip of the leaf spring member 21 is in contact with the tip of the contact spring 15, the rearward movement of the outer case 20 is restricted.

シャッタ板22はスライダ部18と共に後端側に移動して、アウタケース20の中央筒状部20aから上側筒状部20b内に引き込まれ、フェルール13の前方の遮蔽が解除される。また、板ばね部材21の板ばね部21aは、スライダ部18の折り返し部18cによる上方からの押圧が解除され、上方に持ち上る。   The shutter plate 22 moves to the rear end side together with the slider portion 18 and is drawn into the upper cylindrical portion 20b from the central cylindrical portion 20a of the outer case 20, and the front shielding of the ferrule 13 is released. Further, the leaf spring portion 21a of the leaf spring member 21 is lifted upward by releasing the pressure from above by the folded portion 18c of the slider portion 18.

この状態で、アウタケース20の先端を相手側プラグの外縁に当接して、図23に示すように押し込むことにより、アウタケース20が相対的に押圧される。この押圧によりアウタケース20は下側圧縮コイルばね23の付勢力に抗して後方に移動を始め、板ばね部材21の板ばね部21aは当接ばね15の上を通過し、板ばね部21aはスライダ部18の折返し部18cの傾斜面18dにより案内され折返し部18cの下側に挿し込まれる。   In this state, the outer case 20 is relatively pressed by bringing the tip of the outer case 20 into contact with the outer edge of the mating plug and pushing it in as shown in FIG. By this pressing, the outer case 20 starts to move backward against the urging force of the lower compression coil spring 23, and the leaf spring portion 21a of the leaf spring member 21 passes over the contact spring 15, and the leaf spring portion 21a. Is guided by the inclined surface 18d of the folded portion 18c of the slider portion 18 and is inserted below the folded portion 18c.

ここで、スライダ部18の操作ノブ18bから指を放しても、スライダ部18は上側圧縮コイルばね19の付勢力により前方の位置に復元するが、シャッタ板22はプラグフレーム14の上部に沿って持ち上げられたままである。   Here, even if the finger is released from the operation knob 18 b of the slider portion 18, the slider portion 18 is restored to the front position by the urging force of the upper compression coil spring 19, but the shutter plate 22 extends along the upper portion of the plug frame 14. It remains lifted.

更なる押圧により図24に示すように、スライダ部18とアウタケース20から成るシャッタ部材17は下側圧縮コイルばね23の付勢力に抗して後端側に移動し、フェルール13が相対的に前方に突出し相手側プラグと接続する。   As shown in FIG. 24, the shutter member 17 including the slider portion 18 and the outer case 20 moves to the rear end side against the urging force of the lower compression coil spring 23, and the ferrule 13 is relatively moved. Projects forward and connects to the mating plug.

この状態で、フェルール13は相手側プラグに差し込まれてファイバ芯線10cが相手側のファイバ芯線と光学的に接続されることになる。   In this state, the ferrule 13 is inserted into the mating plug, and the fiber core wire 10c is optically connected to the mating fiber core wire.

一方、光コネクタプラグの相手側プラグへの接続を解除するときには、把持部材16を持ち相手側プラグから引き抜く。このとき、シャッタ部材17には前方からの押圧力がなくなるので、シャッタ部材17は下側圧縮コイルばね23の付勢力により前方に移動する。このシャッタ部材17の前方移動に伴い、シャッタ板22が上側筒状部20bからシャッタ出入口20dを介して中央筒状部20a内に繰り出され、図21に示すように非接続時の状態に復帰してフェルール13の前方を遮蔽する。   On the other hand, when the connection of the optical connector plug to the mating plug is released, the holding member 16 is held and pulled out from the mating plug. At this time, since the shutter member 17 has no pressing force from the front, the shutter member 17 moves forward by the urging force of the lower compression coil spring 23. As the shutter member 17 moves forward, the shutter plate 22 is fed into the central cylindrical portion 20a from the upper cylindrical portion 20b through the shutter inlet / outlet 20d, and returns to the disconnected state as shown in FIG. The front of the ferrule 13 is shielded.

1 保持金具
2 管金具
3 円筒部
4 位置決め突起
5、6 かしめ部
10 光ファイバケーブル
10a 外被部
10b 光ファイバ
10c ファイバ芯線
11 ブーツ
11d ばね押さえ部
13 フェルール
14 プラグフレーム
15 当接ばね
16 把持部材
17 シャッタ部材
18 スライダ部
19 上側圧縮コイルばね
20 アウタケース
21 板ばね部材
21b 突き当て部
22 シャッタ板
23 下側圧縮コイルばね
DESCRIPTION OF SYMBOLS 1 Holding metal fitting 2 Tube fitting 3 Cylindrical part 4 Positioning protrusion 5, 6 Caulking part 10 Optical fiber cable 10a Outer part 10b Optical fiber 10c Fiber core wire 11 Boot 11d Spring pressing part 13 Ferrule 14 Plug frame 15 Contact spring 16 Holding member 17 Shutter member 18 Slider portion 19 Upper compression coil spring 20 Outer case 21 Leaf spring member 21b Abutting portion 22 Shutter plate 23 Lower compression coil spring

Claims (4)

光ファイバケーブルを保持するための保持金具と、前記光ファイバの先端のファイバ芯線を保持するフェルールと、該フェルールと前記保持金具とを保持するプラグフレームと、前記保持金具とプラグフレームとを外方から覆い保持する固定の把持部材と、該把持部材の前端に前後動自在に取り付け該把持部材に対し前方に付勢し相手側プラグと嵌合するアウタケースと、該アウタケースの後部に移動自在に取り付けると共に該アウタケースに向けて付勢するスライダ部と、該スライダ部に取り付け前記プラグフレームの前部を遮蔽するシャッタ板と、前記アウタケースの内側に前記把持部材を囲むように固定する金属板から成るばね部材と、前記プラグフレームに取り付け前記ばね部材に当接する金属製の当接ばねとを有する光コネクタプラグであって、前記相手側プラグと非接続時においては前記ばね部材の突き当て部が前記当接ばねと当接して前記アウタケースの前記把持部材に対する後方への移動を規制し、前記相手側プラグとの接続に際し、前記スライダ部を後方に移動させることにより、前記シャッタ板を引き上げると共に前記ばね部材の突き当て部と前記当接ばねとの当接を解除し、前記アウタケース、前記スライダ部を後方に移動し、前記フェルールを前記相手側プラグに向けて突出することを特徴とする光コネクタプラグ。   A holding fitting for holding an optical fiber cable, a ferrule holding a fiber core wire at the tip of the optical fiber, a plug frame holding the ferrule and the holding fitting, and holding the holding fitting and the plug frame outward A fixed gripping member that covers and holds from the outer side, an outer case that is attached to the front end of the gripping member so as to be movable back and forth, and is urged forward with respect to the gripping member and fitted to the mating plug, and is movable to the rear of the outer case A slider portion that is attached to the outer case and biased toward the outer case, a shutter plate that is attached to the slider portion and shields a front portion of the plug frame, and a metal that is fixed inside the outer case so as to surround the gripping member An optical connector plug having a spring member made of a plate and a metal contact spring that is attached to the plug frame and contacts the spring member. And the abutting portion of the spring member abuts against the abutting spring when not connected to the mating plug, and restricts rearward movement of the outer case with respect to the gripping member. When connecting to the plug, the slider part is moved rearward to pull up the shutter plate and release the contact between the abutting part of the spring member and the contact spring, the outer case, the slider part An optical connector plug, wherein the ferrule protrudes toward the mating plug. 前記ばね部材の当接ばねと当接する前記突き当て部をばね性を持たせて上方に向けて付勢し、前記突き当て部の上昇により前記当接ばねとの当接を解除することを特徴とする請求項1に記載の光コネクタプラグ。   The abutting portion that abuts on the abutting spring of the spring member is biased upward with a spring property, and the abutting with the abutting spring is released when the abutting portion rises. The optical connector plug according to claim 1. 前記ばね部材の前記突き当て部の上昇を規制する規制部を前記スライダ部に設けたことを特徴とする請求項2に記載の光コネクタプラグ。   The optical connector plug according to claim 2, wherein a restriction part that restricts the rise of the abutting part of the spring member is provided in the slider part. 前記アウタケースと前記保持金具を保持するブーツとの間に圧縮ばねを介在し前記アウタケースを前記プラグフレームに対して前方に付勢することを特徴とする請求項1に記載の光コネクタプラグ。   2. The optical connector plug according to claim 1, wherein a compression spring is interposed between the outer case and a boot for holding the holding metal member to bias the outer case forward with respect to the plug frame.
JP2009068578A 2009-03-19 2009-03-19 Optical connector plug Expired - Fee Related JP4783443B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106154427A (en) * 2015-04-24 2016-11-23 普泰光电股份有限公司 There is the fiber adapter of shading piece
WO2019012006A1 (en) 2017-07-14 2019-01-17 Huber+Suhner Ag Optical connector assembly comprising a shutter
WO2020210374A1 (en) * 2019-04-08 2020-10-15 Commscope Technologies Llc Fiber protection system for a fiber optic connector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106154427A (en) * 2015-04-24 2016-11-23 普泰光电股份有限公司 There is the fiber adapter of shading piece
CN106154427B (en) * 2015-04-24 2017-11-17 普泰光电股份有限公司 Fiber adapter with shading piece
WO2019012006A1 (en) 2017-07-14 2019-01-17 Huber+Suhner Ag Optical connector assembly comprising a shutter
US11194102B2 (en) 2017-07-14 2021-12-07 Huber+Suhner Ag Optical connector assembly comprising a shutter
WO2020210374A1 (en) * 2019-04-08 2020-10-15 Commscope Technologies Llc Fiber protection system for a fiber optic connector

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