JP3542008B2 - Optical fiber holder and optical fiber core fixing method - Google Patents

Optical fiber holder and optical fiber core fixing method Download PDF

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Publication number
JP3542008B2
JP3542008B2 JP4885098A JP4885098A JP3542008B2 JP 3542008 B2 JP3542008 B2 JP 3542008B2 JP 4885098 A JP4885098 A JP 4885098A JP 4885098 A JP4885098 A JP 4885098A JP 3542008 B2 JP3542008 B2 JP 3542008B2
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Japan
Prior art keywords
optical fiber
cord
holder
groove
fiber core
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JP4885098A
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JPH11231164A (en
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雅弘 長谷川
徹 有川
和宏 瀧澤
泰博 玉木
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Fujikura Ltd
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Fujikura Ltd
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Description

【0001】
【発明の属する技術分野】
この発明は,光コネクタ組立用治具あるいは光ファイバ加工機器用治具等として用いられる光ファイバホルダに関する。
【0002】
【従来の技術】
一般に,例えば簡易組み立て単心光コネクタを組み立てる場合,光ファイバ心線の被覆を除去する際および光コネクタを組み立てる際に,光ファイバ心線を精度よく位置決め固定するための固定治具として,光ファイバホルダが使用されている。また,光ファイバ切断装置や光ファイバ融着接続装置等の光ファイバ加工機器においては,光ファイバ心線を機器上で精度良く位置決め固定するための固定治具として光ファイバホルダが用いられる。
【0003】
この種の従来の光ファイバホルダはいずれも,光ファイバ心線用のものであった。この種の従来の光ファイバホルダの一例を図8,図9に示す。図8は従来の光ファイバホルダ1の平面図,図9は使用状態の側面図である。この光ファイバホルダ1は,ホルダ本体2の上面に,光ファイバ心線3を位置決め収容する調心溝4を長手方向の全長にわたって設けるとともに,この調心溝3に収容した光ファイバ心線3を把持するための蓋体5,5をホルダ本体2にヒンジ軸7を介して開閉可能に取り付けた構造である。また,蓋体は光ファイバ心線2を挟持する際の主として作業性の面から2つに分割しているが,図示の通り,両蓋体5,5はほぼ隙間なく隣接して設けられている。なお,図8は一方の蓋体5を開いた状態で示している。
【0004】
【発明が解決しようとする課題】
上記従来の光ファイバホルダ1は光ファイバ心線用であり,光ファイバコードに対しては使用できない。図7に光ファイバコードの一例を示す。図7の光ファイバコード30は単心であり,光ファイバ心線31の周囲を抗張力繊維(引っ張り強度補強材:一般にケブラが使用されている)32で被覆し,さらにその周囲をPVC(ポリ塩化ビニル)外被33で覆った構造である。具体的寸法の一例を示すと,光ファイバ心線31の外径(2次被覆外径)が0.9mm,光ファイバコード30の外径(PVC外皮33の外径)が1.5mmあるいは2.0mmあるいは2.8mm等である。このような光ファイバコード30を光ファイバホルダで固定するには,光ファイバコード30の先端部のPVC外被33を除去し,ハサミ等では簡単に切れない抗張力繊維32をほぐし光ファイバ心線31の周囲から離してファイバ心線31を把持する必要がある。
しかし,従来の光ファイバホルダ1では,これを光ファイバコード用とするために,仮に図8において長手方向全長にわたる調心溝4の右側約半分をコード部収容のための溝として大きくしたとしても,光ファイバ心線31の周囲から離した前記抗張力繊維32の取り出し処理が困難である。
【0005】
本発明は上記従来の欠点を解消するためになされたもので,光ファイバコードの先端部における光ファイバ心線およびコード部をしっかりと把持することができるとともに,その際の抗張力繊維の処理が容易な光ファイバホルダを提供することを目的とする。
【0006】
【課題を解決するための手段】
上記課題を解決する本発明は、ホルダ本体とこのホルダ本体にホルダ幅方向一端側のヒンジ軸を介してそれぞれ独立して開閉可能に取り付けられたコード部把持用の蓋体及び光ファイバ心線把持用の蓋体とからなる光ファイバホルダであって、
前記ホルダ本体の上面の長手方向の片側に光ファイバコードの露出させた光ファイバ心線を位置決め収容する調心溝、他側にコード部を収容するコード部用溝を設けるとともに、前記調心溝とコード部用溝との間に、光ファイバ心線の周囲の抗張力繊維を引き出すための、ホルダ幅方向両側に抜ける溝状の空間部を形成したことを特徴とする。
請求項2は、光ファイバ心線の周囲に抗張力繊維を配置しその外側に外皮を被せた光ファイバコードの先端部の所定長さについて前記外皮を除去して光ファイバ心線を露出させた場合に、請求項1の光ファイバホルダを用いて光ファイバ心線をコード部とともに固定する光ファイバ心線固定方法であって、
光ファイバコードのコード部を前記コード部用溝に収容しかつ光ファイバ心線部を前記調心溝に収容し、前記抗張力繊維を二方向に分けて前記溝状の空間部を通してホルダ幅方向両側にそれぞれ引き出しかつそれぞれ後方に引き回しておき、次いで光ファイバコード把持用の蓋体を被せてコード部を把持固定し、光ファイバ心線把持用の蓋体を被せて光ファイバ心線を把持固定することを特徴とする。
【0007】
【発明の実施の形態】
以下,本発明の実施の形態を図1〜図6に示した一実施例の光ファイバホルダを参照して説明する。
図1は本発明の一実施例の光ファイバホルダ11の斜視図,図2は同平面図,図3は図2のA−A断面図,図4(イ)は図2のB−B断面図,図4(ロ)は図2のC−C断面図である。また,図5,図6にこの光ファイバホルダ11で光ファイバコード30を把持する状況を模式図で示す。なお,本発明の光ファイバホルダ11が対象とする光ファイバコード30は,例えば図7で説明したような構造・寸法であるが,当然これに限定されない。これらの図に示すように,この光ファイバホルダ11は,プラスチック製のホルダ本体12と,このホルダ本体12に開閉可能に取り付けられた鋼製の2つの蓋体13,14とからなっている。
【0008】
ホルダ本体11には,その上面の長手方向の片側に光ファイバコード30の露出させた光ファイバ心線31を位置決め収容する断面V字形の調心溝15,他側にコード部30aを収容するコード部用溝16を設け,その中間部にコード部用溝16と同じ深さでホルダ本体12の幅方向に突き抜ける溝状の空間部17を形成している。この空間部17は,後述するように光ファイバ心線31の周囲の抗張力繊維32を引き出すためのものである。
【0009】
前記調心溝15は,一方の蓋体13側の後述の挟持部材24が係合する浅い係合溝20の中央に形成している。また,ホルダ本体12には,鋼製である蓋体13,14をそれぞれ吸着するためのマグネット21を微小寸法没するように埋設している。
【0010】
前記の一方の蓋体13は前記調心溝15に収容された光ファイバ心線31を挟持するためのもの,他方の蓋体14は前記コード部溝16に収容されたコード部30aを挟持するためのものであり,両蓋体13,14は,ホルダ本体12の側部に貫通させたヒンジ軸23を介してホルダ本体12に開閉可能に取り付けられている。そして,両蓋体13,14間は,前記空間部17の上方を覆わないように図示の通り互いに離間している。また,蓋体13の内側面の中央に光ファイバ心線31を押さえるプラスチックからなる挟持部材24を設け,蓋体14の内面側の中央にコード部30aを押さえるゴムからなる挟持部材25を設けている。
【0011】
上記の光ファイバホルダ11で光ファイバコードを把持する作業について説明する。予め,光ファイバコードの先端部の所定の長さについてPVC外皮を除去して抗張力繊維を露出させ,次いでその露出させた抗張力繊維をほぐして光ファイバ心線から離し,光ファイバ心線を露出させておく。
そして,図5に示すように,光ファイバホルダ11の両蓋体13,14を開いた状態で,前述の処理を施した光ファイバコード30の露出させた光ファイバ心線31を調心溝15に収容し,コード部30aをコード部用溝16に収容する。この場合,抗張力繊維32は,図示のように,ホルダ本体12の調心溝15とコード部用溝16との間に形成されている空間部17の幅方向両側から引き出し,後方に引き回しておく。次いで,図6に示すように,両蓋体13,14を閉ざす。この時,鋼製である両蓋体13,14はホルダ本体12側のマグネット21に吸着されるので,ホルダ本体12と蓋体13,14とはこの吸着力で光ファイバ心線31またはコード部30aを把持する。なお,光ファイバ心線31はホルダ本体12と蓋体13とでしっかりと固定されるが,抗張力繊維32とPVC外皮33との間はルーズなので,コード部30aはしっかりと固定というほどではなく,固定された光ファイバ心線31に無理な力が加わらないような安定な把持がされる。
【0012】
なお,光ファイバ心線の被覆を除去する際には,ホルダ本体12から光ファイバ心線31が滑らないように,光ファイバ心線31を一定の力でしっかりと把持する必要がある。そこで,光ファイバ心線31を把持する部分の長さすなわち上記の調心溝15および蓋体13の長さを,光ファイバ心線31を一定の力で把持できる長さに設定している。
【0013】
上記のように光ファイバホルダ11で把持された光ファイバコード11は, 光ファイバ心線の被覆を除去する場合であれば,この光ファイバホルダ11を光ファイバ心線被覆除去装置の光ファイバホルダ装着部に装着する。また,光ファイバ心線の被覆を除去した後の光コネクタ組立を行う場合であれば,光コネクタにこの光ファイバホルダごと装着して組み立てる。
【0014】
なお,本発明の光ファイバホルダは,光ファイバ切断装置や光ファイバ融着接続装置における光ファイバ心線固定治具として用いることもできる。この場合は,光ファイバコードを固定した本発明の光ファイバホルダを光ファイバ切断装置や光ファイバ融着接続装置の光ファイバホルダ装着部に装着する。その他,利用形態は特に限定されるものではない。
【0015】
なお、実施例では抗張力繊維を引き出すための空間部17を、両蓋体13、14間の間隙と一致させているが、必ずしも一致させなくてよい。空間部は両蓋体13、14の間隙より広くても狭くてもよい。また、実施例の空間部17は、コード部用溝16の底面と同レベルであるが、この空間部はコード部用溝16より深くても浅くてもよい。
【0016】
なお,実施例では,両蓋体13,14が空間部17を覆わないように,両蓋体13,14を互いに離間して設けているので,抗張力繊維32をホルダ本体12の外側に引き出す処理が容易であるが,両蓋体13,14を近接ないし接触させて設けることを除外するものではない。この場合でも,抗張力繊維32を引き出す処理を両蓋体13,14が開いた状態でしか行わないのであれば,空間部17の存在のみで十分抗張力繊維32の引き出し処理が可能である。ただし,蓋体13をほぼ閉じた状態で光ファイバ心線31を調心溝15に挿入する作業を行う場合は,蓋体13が空間部17を覆わないようにする必要がある。
【0017】
また,実施例では単心の光ファイバコードを対象とする光ファイバホルダについて説明したが,複数の光ファイバ心線を有する多心光ファイバコードに本発明を適用することも可能である。但し,この場合のホルダ本体に設ける調心溝は,複数の光ファイバ心線を位置決め収容できるように,その多心光ファイバコードの構造・寸法に応じて適宜変更する。なお,多心光ファイバコードとしては,個々の光ファイバ心線毎に抗張力繊維およびPVC外皮を持つ構造のもの,および束にした複数の光ファイバ心線の周囲を抗張力繊維を設けさらにPVC外皮で被覆した丸形のもののいずれにでもよい。
【0018】
【発明の効果】
本発明によれば,ホルダ本体の片側に光ファイバ心線用の調心溝,他側にコード部用のコード部用溝を設けるとともに,調心溝とコード部用溝との間に,光ファイバ心線の周囲の抗張力繊維を引き出すための空間部を形成したので,次のような効果が得られた。
▲1▼抗張力繊維を引き出す空間部があるので抗張力繊維の処理が容易になり,これにより,光ファイバコードの先端の光ファイバ心線だけでなくコード部をも把持することが可能となり,光ファイバ心線を無理な力が加わらない状態でしっかりと固定することが可能となった。
▲2▼これにより,光コネクタ組立における光ファイバコードの光ファイバ心線の被覆除去および光コネクタの組み立て作業が著しく容易になった。また,光ファイバ切断装置や光ファイバ融着接続装置等の光ファイバ加工機器における固定治具として用いた場合には,同様にそれらの加工が容易になる。
【図面の簡単な説明】
【図1】本発明の光ファイバホルダの一実施例を示す斜視図である。
【図2】図1の光ファイバホルダの平面図である。
【図3】図2のA−A断面図である。
【図4】(イ)は図2のB−B断面図(ロ)は図2のC−C断面図である。
【図5】上記の光ファイバホルダで光ファイバコードを把持する際に,抗張力繊維の処理を行う状況を説明する図であり,蓋体を開いた状態の模式図である。
【図6】図5に続いて蓋体を閉じた状態の模式図である。
【図7】本発明の光ファイバホルダが対象とする光ファイバコードの一例を示す断面図である。
【図8】従来の光ファイバホルダの,一方の蓋体を開いた状態の平面図である。
【図9】図8の光ファイバホルダで光ファイバ心線を把持した状態の側面図である。
【符号の説明】
11 光ファイバホルダ
12 ホルダ本体
13,14 蓋体
15 調心溝
16 コード部用溝
17 空間部
20 係合溝
21 マグネット
23 ヒンジ軸
24,25 挟持部材
30 光ファイバコード
30a コード部
31 光ファイバ心線
32 抗張力繊維
33 PVC外皮
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an optical fiber holder used as an optical connector assembling jig or an optical fiber processing equipment jig.
[0002]
[Prior art]
In general, for example, when assembling a simple-assembly single-core optical connector, removing the coating of the optical fiber core, and assembling the optical connector, the optical fiber is used as a fixing jig for accurately positioning and fixing the optical fiber core. Holders are used. In an optical fiber processing device such as an optical fiber cutting device or an optical fiber fusion splicing device, an optical fiber holder is used as a fixing jig for accurately positioning and fixing an optical fiber core wire on the device.
[0003]
Conventional optical fiber holders of this type are all for optical fiber cores. An example of this type of conventional optical fiber holder is shown in FIGS. FIG. 8 is a plan view of the conventional optical fiber holder 1, and FIG. 9 is a side view in a used state. In the optical fiber holder 1, an alignment groove 4 for positioning and housing the optical fiber core 3 is provided on the upper surface of the holder body 2 over the entire length in the longitudinal direction, and the optical fiber core 3 housed in the alignment groove 3 is provided. This is a structure in which lids 5 and 5 for gripping are attached to the holder main body 2 via a hinge shaft 7 so as to be openable and closable. The lid is divided into two parts mainly in terms of workability when the optical fiber core wire 2 is clamped. However, as shown in the figure, the two lids 5, 5 are provided adjacent to each other with almost no gap. I have. FIG. 8 shows a state in which one lid 5 is opened.
[0004]
[Problems to be solved by the invention]
The above-mentioned conventional optical fiber holder 1 is for an optical fiber cord, and cannot be used for an optical fiber cord. FIG. 7 shows an example of the optical fiber cord. The optical fiber cord 30 shown in FIG. 7 has a single core, and the periphery of the optical fiber core 31 is covered with a tensile strength fiber (tensile strength reinforcing material: generally Kevlar) 32, and the periphery is further covered with PVC (poly chloride). (Vinyl) The structure is covered with a jacket 33. As an example of specific dimensions, the outer diameter of the optical fiber core wire 31 (the outer diameter of the secondary coating) is 0.9 mm, and the outer diameter of the optical fiber cord 30 (the outer diameter of the PVC sheath 33) is 1.5 mm or 2 mm. 0.0 mm or 2.8 mm. In order to fix such an optical fiber cord 30 with an optical fiber holder, the PVC jacket 33 at the tip of the optical fiber cord 30 is removed, and the tensile strength fiber 32 which cannot be easily cut with scissors or the like is loosened and the optical fiber core 31 is removed. It is necessary to hold the fiber core 31 away from the periphery of the optical fiber.
However, in the conventional optical fiber holder 1, even if the right half of the centering groove 4 extending over the entire length in the longitudinal direction in FIG. It is difficult to take out the tensile strength fiber 32 separated from the periphery of the optical fiber 31.
[0005]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and it is possible to firmly grasp an optical fiber core wire and a cord portion at a distal end portion of an optical fiber cord, and at the same time, to treat a tensile strength fiber easily. It is an object of the present invention to provide a simple optical fiber holder.
[0006]
[Means for Solving the Problems]
An object of the present invention to solve the above-mentioned problem is to provide a holder body and a cover for holding a cord part and an optical fiber core holder which are independently and closably attached to the holder body via a hinge shaft on one end side in the holder width direction. An optical fiber holder comprising a lid for
An aligning groove for positioning and housing the exposed optical fiber core wire on one side of the upper surface of the holder main body in the longitudinal direction, and a cord portion groove for housing the cord portion are provided on the other side, and the aligning groove is provided. A groove-shaped space is formed between the groove and the groove for the cord portion. The groove- shaped space is drawn out on both sides in the width direction of the holder for drawing out the tensile strength fiber around the optical fiber.
Claim 2 is a case where the tensile strength fiber is arranged around the optical fiber core wire, and the outer sheath is removed by exposing the optical fiber core wire for a predetermined length of the distal end portion of the optical fiber cord whose outer sheath is covered. An optical fiber core fixing method for fixing an optical fiber core together with a cord part using the optical fiber holder according to claim 1,
The cord portion of the optical fiber cord is accommodated in the cord portion groove, and the optical fiber core portion is accommodated in the alignment groove, the tensile strength fiber is divided into two directions, and both sides in the holder width direction are passed through the groove-shaped space portion. , Respectively, and pulled backwards, respectively, and then cover the optical fiber cord with a cover for grasping and fixing the cord portion, cover the cover for holding the optical fiber core, and grasp and fix the optical fiber core. It is characterized by the following.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to an optical fiber holder of one embodiment shown in FIGS.
FIG. 1 is a perspective view of an optical fiber holder 11 according to one embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. FIG. 4 (b) is a cross-sectional view taken along the line CC of FIG. FIGS. 5 and 6 are schematic views showing a situation where the optical fiber cord 30 is gripped by the optical fiber holder 11. The optical fiber cord 30 targeted by the optical fiber holder 11 of the present invention has the structure and dimensions as described with reference to FIG. 7, for example, but is not limited to this. As shown in these figures, the optical fiber holder 11 includes a plastic holder main body 12 and two steel lids 13 and 14 attached to the holder main body 12 so as to be openable and closable.
[0008]
The holder main body 11 has a centering groove 15 having a V-shaped cross section for positioning and housing the exposed optical fiber core 31 of the optical fiber cord 30 on one side in the longitudinal direction of the upper surface thereof, and a cord for housing the cord portion 30a on the other side. A groove 16 is provided in the middle part of the groove 16, and a groove-shaped space 17 is formed at the same depth as the groove 16 for the code part so as to penetrate in the width direction of the holder body 12. The space 17 is for drawing out a tensile fiber 32 around the optical fiber 31 as described later.
[0009]
The alignment groove 15 is formed at the center of a shallow engagement groove 20 on one lid 13 side with which a holding member 24 described later is engaged. Further, in the holder main body 12, magnets 21 for adsorbing the lids 13 and 14, which are made of steel, are embedded so as to be submerged in a minute dimension.
[0010]
The one lid 13 is for holding the optical fiber 31 accommodated in the alignment groove 15, and the other lid 14 is for holding the cord portion 30 a accommodated in the cord groove 16. The two lids 13 and 14 are attached to the holder main body 12 via a hinge shaft 23 penetrating through the side of the holder main body 12 so as to be openable and closable. The two lids 13 and 14 are separated from each other as shown so as not to cover the space 17. Also, a holding member 24 made of plastic for holding the optical fiber 31 is provided at the center of the inner surface of the lid 13, and a holding member 25 made of rubber for holding the cord portion 30 a is provided at the center of the inner surface of the cover 14. I have.
[0011]
The operation of holding the optical fiber cord with the optical fiber holder 11 will be described. Beforehand, the PVC sheath is removed for a predetermined length of the end portion of the optical fiber cord to expose the tensile strength fiber, and then the exposed tensile strength fiber is loosened and separated from the optical fiber core to expose the optical fiber core. Keep it.
Then, as shown in FIG. 5, with the lids 13 and 14 of the optical fiber holder 11 opened, the exposed optical fiber core 31 of the optical fiber cord 30 subjected to the above-described processing is aligned with the alignment groove 15. The cord portion 30a is accommodated in the cord portion groove 16. In this case, the tensile strength fibers 32 are drawn out from both sides in the width direction of the space portion 17 formed between the alignment groove 15 of the holder main body 12 and the groove 16 for the cord portion as shown in the figure, and are routed rearward. . Next, as shown in FIG. 6, the lids 13 and 14 are closed. At this time, since both the lids 13 and 14 made of steel are attracted to the magnet 21 on the holder main body 12 side, the holder main body 12 and the lids 13 and 14 are attached to the optical fiber core 31 or the cord portion by this attractive force. Hold 30a. Although the optical fiber 31 is firmly fixed by the holder body 12 and the lid 13, since the space between the tensile strength fiber 32 and the PVC sheath 33 is loose, the cord portion 30a is not so firmly fixed. Stable gripping is performed such that no excessive force is applied to the fixed optical fiber core 31.
[0012]
When removing the coating of the optical fiber core, it is necessary to firmly hold the optical fiber 31 with a certain force so that the optical fiber 31 does not slip from the holder body 12. Therefore, the length of the portion holding the optical fiber 31, that is, the length of the alignment groove 15 and the lid 13 is set to a length that can hold the optical fiber 31 with a constant force.
[0013]
If the optical fiber cord 11 gripped by the optical fiber holder 11 as described above is used to remove the coating of the optical fiber core, the optical fiber holder 11 is attached to the optical fiber holder of the optical fiber core coating removing device. Attach to the part. In the case of assembling the optical connector after removing the coating of the optical fiber core, the optical connector is attached to the optical connector together with the optical fiber holder.
[0014]
The optical fiber holder of the present invention can be used as an optical fiber core fixing jig in an optical fiber cutting device or an optical fiber fusion splicing device. In this case, the optical fiber holder of the present invention to which the optical fiber cord is fixed is mounted on the optical fiber holder mounting portion of the optical fiber cutting device or the optical fiber fusion splicing device. In addition, the use form is not particularly limited.
[0015]
In the embodiment, the space 17 for pulling out the tensile strength fiber is made to coincide with the gap between the lids 13 and 14, but it is not always necessary to make it coincide. The space may be wider or narrower than the gap between the lids 13 and 14. Further, the space 17 in the embodiment is at the same level as the bottom surface of the code groove 16, but this space may be deeper or shallower than the code groove 16 .
[0016]
In the embodiment, since the two lids 13 and 14 are provided apart from each other so as not to cover the space 17, the process of pulling the tensile strength fiber 32 out of the holder main body 12 is performed. However, this does not exclude the provision of the two lids 13 and 14 in close proximity or in contact with each other. Even in this case, if the process of pulling out the tensile strength fiber 32 is performed only in a state where both the lids 13 and 14 are open, the pull-out process of the tensile strength fiber 32 can be sufficiently performed only by the presence of the space 17. However, when the operation of inserting the optical fiber 31 into the alignment groove 15 with the cover 13 substantially closed is required, the cover 13 must not cover the space 17.
[0017]
In the embodiment, the optical fiber holder for a single-core optical fiber cord has been described. However, the present invention can be applied to a multi-core optical fiber cord having a plurality of optical fiber cores. However, the alignment groove provided in the holder body in this case is appropriately changed according to the structure and dimensions of the multi-core optical fiber cord so that a plurality of optical fibers can be positioned and accommodated. The multi-core optical fiber cord has a structure in which a tensile fiber and a PVC sheath are provided for each individual optical fiber core, and a tensile fiber is provided around a plurality of bundled optical fiber cores, and the PVC sheath is used. Any of the coated round shapes may be used.
[0018]
【The invention's effect】
According to the present invention, an aligning groove for an optical fiber core is provided on one side of the holder body, and a cord section for a cord section is provided on the other side, and an optical fiber is provided between the aligning groove and the cord section groove. Since the space around the fiber core for drawing out the tensile strength fiber was formed, the following effects were obtained.
(1) Since there is a space for drawing out the tensile strength fiber, the treatment of the tensile strength fiber is facilitated, so that not only the optical fiber core wire at the tip of the optical fiber cord but also the cord portion can be gripped, and the optical fiber can be grasped. It is now possible to securely fix the core without applying excessive force.
{Circle around (2)} As a result, in the assembly of the optical connector, the removal of the coating of the optical fiber cord of the optical fiber cord and the assembling work of the optical connector are remarkably facilitated. In addition, when used as a fixing jig in an optical fiber processing device such as an optical fiber cutting device or an optical fiber fusion splicing device, the processing thereof is similarly facilitated.
[Brief description of the drawings]
FIG. 1 is a perspective view showing one embodiment of an optical fiber holder of the present invention.
FIG. 2 is a plan view of the optical fiber holder of FIG.
FIG. 3 is a sectional view taken along line AA of FIG. 2;
4A is a sectional view taken along line BB of FIG. 2; FIG. 4B is a sectional view taken along line CC of FIG. 2;
FIG. 5 is a view for explaining a situation in which a tensile strength fiber is treated when the optical fiber cord is gripped by the optical fiber holder, and is a schematic view showing a state in which a lid is opened.
FIG. 6 is a schematic view showing a state where a lid is closed, following FIG. 5;
FIG. 7 is a cross-sectional view showing an example of an optical fiber cord targeted for the optical fiber holder of the present invention.
FIG. 8 is a plan view of a conventional optical fiber holder with one lid opened.
9 is a side view of a state where the optical fiber core wire is gripped by the optical fiber holder of FIG. 8;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Optical fiber holder 12 Holder main bodies 13 and 14 Lid 15 Alignment groove 16 Cord part groove 17 Space part 20 Engagement groove 21 Magnet 23 Hinge shaft 24 and 25 Clamping member 30 Optical fiber cord 30a Cord part 31 Optical fiber core 32 High tensile fiber 33 PVC sheath

Claims (2)

ホルダ本体とこのホルダ本体にホルダ幅方向一端側のヒンジ軸を介してそれぞれ独立して開閉可能に取り付けられたコード部把持用の蓋体及び光ファイバ心線把持用の蓋体とからなる光ファイバホルダであって、
前記ホルダ本体の上面の長手方向の片側に光ファイバコードの露出させた光ファイバ心線を位置決め収容する調心溝、他側にコード部を収容するコード部用溝を設けるとともに、前記調心溝とコード部用溝との間に、光ファイバ心線の周囲の抗張力繊維を引き出すための、ホルダ幅方向両側に抜ける溝状の空間部を形成したことを特徴とする光ファイバホルダ。
An optical fiber comprising a holder body, a lid for holding a cord portion, and a lid for holding an optical fiber, which are independently openably and closably attached to the holder body via a hinge shaft at one end in the width direction of the holder. A holder,
An aligning groove for positioning and housing the exposed optical fiber core wire on one side of the upper surface of the holder main body in the longitudinal direction, and a cord portion groove for housing the cord portion are provided on the other side, and the aligning groove is provided. An optical fiber holder characterized in that a groove-shaped space is formed between both sides of the optical fiber core wire and drawn out on both sides in the holder width direction for drawing out tensile strength fibers around the optical fiber core wire.
光ファイバ心線の周囲に抗張力繊維を配置しその外側に外皮を被せた光ファイバコードの先端部の所定長さについて前記外皮を除去して光ファイバ心線を露出させた場合に、請求項1の光ファイバホルダを用いて光ファイバ心線をコード部とともに固定する光ファイバ心線固定方法であって、2. The optical fiber cord according to claim 1, wherein the outer sheath is removed by removing the outer sheath for a predetermined length of a tip portion of the optical fiber cord in which a tensile fiber is disposed around the optical fiber core and the outer sheath is covered on the outer side thereof. An optical fiber core fixing method for fixing an optical fiber core together with a cord part by using an optical fiber holder,
光ファイバコードのコード部を前記コード部用溝に収容しかつ光ファイバ心線部を前記調心溝に収容し、前記抗張力繊維を二方向に分けて前記溝状の空間部を通してホルダ幅方向両側にそれぞれ引き出しかつそれぞれ後方に引き回しておき、次いで光ファイバコード把持用の蓋体を被せてコード部を把持固定し、光ファイバ心線把持用の蓋体を被せて光ファイバ心線を把持固定することを特徴とする光ファイバ心線固定方法。  The cord section of the optical fiber cord is accommodated in the cord section groove, and the optical fiber core section is accommodated in the alignment groove, the tensile strength fiber is divided into two directions, and both sides in the holder width direction are passed through the groove-shaped space section. Respectively, and pulled backwards, respectively, and then cover the optical fiber cord with a cover for grasping and fixing the cord portion. An optical fiber core fixing method characterized by the above-mentioned.
JP4885098A 1998-02-13 1998-02-13 Optical fiber holder and optical fiber core fixing method Expired - Lifetime JP3542008B2 (en)

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