JP2003207679A - Optical fiber holder for fusion-splicing connection and optical cable connecting method using the same - Google Patents

Optical fiber holder for fusion-splicing connection and optical cable connecting method using the same

Info

Publication number
JP2003207679A
JP2003207679A JP2002005584A JP2002005584A JP2003207679A JP 2003207679 A JP2003207679 A JP 2003207679A JP 2002005584 A JP2002005584 A JP 2002005584A JP 2002005584 A JP2002005584 A JP 2002005584A JP 2003207679 A JP2003207679 A JP 2003207679A
Authority
JP
Japan
Prior art keywords
optical fiber
optical
core wire
base
reinforcing sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002005584A
Other languages
Japanese (ja)
Inventor
Takaaki Uchida
隆章 内田
Hideki Watanabe
秀樹 渡辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP2002005584A priority Critical patent/JP2003207679A/en
Publication of JP2003207679A publication Critical patent/JP2003207679A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To make a connection part of an optical cable small-sized. <P>SOLUTION: Two optical fiber holders 10A and 10B are used which each comprise a base 1 having a thin groove 26 formed on its tip side and a thick groove 28 formed on its rear end side and a covering lid 14 at the part of the thin groove 26 of the base 12. One optical cable 16A is subjected to terminal processing while a coated optical fiber 20A is mounted on the thin groove 26 of the optical fiber holder 10A and an end of a clad 18A is so mounted in the thick groove 28 as to abut against an abutting surface 30. The other optical fiber 16A is subjected to terminal processing while a coated after being run through a fusion-splicing connection part reinforcing sleeve 24 is mounted in the thick groove 28 and an end surface of a reinforcing sleeve 24 is made to abut against the abutting surface 30. Then the optical fiber holders 10A and 10B are set on a fusion-splicing connecting machine and connected by fusion-splicing; and then the length between end surfaces of clads becomes constant with respect to a necessary irreducible length and the connection part can be protected by a thin and short protection member, so that the connection part can be made small-sized. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】 本発明は光ファイバ融着接
続用の光ファイバホルダと、それを用いた光ケーブルの
接続方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber holder for fusion splicing of optical fibers, and an optical cable connecting method using the same.

【0002】[0002]

【従来の技術】 従来、光ケーブルの接続は次のように
行われている。まず接続すべき光ケーブルの端部の外被
を剥いで光ファイバ心線を所要長露出させる。次に光フ
ァイバ心線の先端付近を光ファイバホルダで把持し、光
ファイバ心線の、光ファイバホルダの先端面より先に出
ている部分の被覆を除去し、これにより露出した光ファ
イバを所定の位置(光ファイバホルダの先端面から一定
の長さの所)で切断する。その後、光ファイバホルダを
融着接続機にセットして、光ファイバを融着接続する。
2. Description of the Related Art Conventionally, an optical cable is connected as follows. First, the outer jacket of the end of the optical cable to be connected is stripped to expose the optical fiber core wire for a required length. Next, hold the tip of the optical fiber core near the tip of the optical fiber holder, remove the coating on the part of the optical fiber core that extends beyond the tip of the optical fiber holder, and remove the exposed optical fiber to a specified position. Cut at the position (a certain length from the tip of the optical fiber holder). Then, the optical fiber holder is set in the fusion splicer to splice the optical fibers.

【0003】 ここで光ファイバホルダを使用するの
は、光ファイバ心線が滑らないようにしっかりと把持し
て、光ファイバ心線の被覆除去、光ファイバ切断が、作
業者のスキルに関わらず、常に同じ位置で行えるように
することと、裸の光ファイバを融着接続機のV溝に確実
に載置して軸合わせを簡単に行えるようにするためであ
る。光ファイバホルダは、上面に光ファイバ心線を載置
する細溝を形成したベースと、ベースの細溝に載置され
た光ファイバ心線を押える蓋とで構成されている。ベー
スの細溝は、ベースの先端から後端まで断面形状が一様
な通し溝である。また蓋には光ファイバ心線を押えるゴ
ム等のクッション材が取り付けられている。
The optical fiber holder is used here by firmly gripping the optical fiber core wire so as not to slip, and removing the coating of the optical fiber core wire and cutting the optical fiber, regardless of the skill of the operator. This is because the optical fiber can be always placed at the same position, and the bare optical fiber can be surely placed in the V groove of the fusion splicer to easily perform the axis alignment. The optical fiber holder is composed of a base having an upper surface on which a narrow groove for mounting the optical fiber core wire is formed, and a lid for pressing the optical fiber core wire mounted on the narrow groove of the base. The narrow groove of the base is a through groove having a uniform cross-sectional shape from the front end to the rear end of the base. A cushion material such as rubber that holds the optical fiber core is attached to the lid.

【0004】 融着接続後は、予め一方の光ファイバ心
線に挿通しておいた補強スリーブを融着接続部に被せて
加熱収縮させ、融着接続部を補強する。次に融着接続部
と、光ファイバ心線の余長を余長収納ケースに収納す
る。このような作業を光ファイバ心線の本数だけ行い、
余長収納ケースをクロージャに収めて、クロージャを密
閉する。
After the fusion splicing, a reinforcing sleeve which has been inserted through one of the optical fiber core wires in advance is put on the fusion splicing portion to heat-shrink, and the fusion splicing portion is reinforced. Next, the fusion splicing part and the extra length of the optical fiber core are stored in an extra length storage case. Do this work for each optical fiber,
Put the extra length storage case in the closure and seal the closure.

【0005】[0005]

【発明が解決しようとする課題】 光ケーブルの布設
が、電話局と電話局の間のような中継系から、一般加入
者への配線のような加入者系に移るに従い、光ケーブル
の接続部を小型化したいという要求が高まっている。従
来のように、光ファイバ心線に余長をもたせて融着接続
を行い、融着接続部と心線余長を余長収納ケースに収納
し、クロージャで密閉する構造では、単心の光ケーブル
を接続する場合でも、心線余長を丸めて収納する必要が
あることから、接続部はかなり大きなものとならざるを
得ない。
As the laying of optical cables moves from a relay system such as between telephone stations to a subscriber system such as wiring to general subscribers, the connecting portion of the optical cable is made smaller. The demand for realization is increasing. As in the conventional method, the optical fiber core wire has a surplus length for fusion splicing, the fusion splicing part and the extra length of the core wire are stored in a surplus length storage case, and the structure is sealed with a closure. Even when connecting the cable, it is necessary to round the extra length of the core wire and store it. Therefore, the connection part must be considerably large.

【0006】 本発明の目的は、融着接続が1回で行え
る、光ファイバ心線(単心光ファイバ心線又は2心以上
のテープ状光ファイバ心線)が1本だけの光ケーブルの
接続部を、大幅に小型化することが可能な融着接続用光
ファイバホルダと、それを用いた光ケーブルの接続方法
を提供することにある。
An object of the present invention is to connect an optical cable having only one optical fiber core wire (single core optical fiber core wire or tape-shaped optical fiber core wire having two or more cores), which can perform fusion splicing once. It is an object of the present invention to provide an optical fiber holder for fusion splicing, which can be significantly downsized, and an optical cable connecting method using the same.

【0007】[0007]

【課題を解決するための手段】 この目的を達成するた
め本発明は、光ケーブルの端部に露出させた光ファイバ
心線を載置する細溝を形成したベースと、このベースの
細溝に載置した光ファイバ心線を押える蓋とを備えた融
着接続用光ファイバホルダにおいて、前記ベースの、細
溝の後方に、前記光ケーブルの外被の端部又は前記光フ
ァイバ心線に挿通した光ファイバ融着接続部補強スリー
ブを載置する太溝を形成すると共に、この太溝と前記細
溝との境に前記外被又は補強スリーブの端面を当接させ
る突き当て面を形成したことを特徴とするものである。
Means for Solving the Problems To achieve this object, the present invention provides a base having a narrow groove for mounting an optical fiber core wire exposed at an end of an optical cable, and a narrow groove of the base. In a fusion splicing optical fiber holder equipped with a lid for pressing the optical fiber core placed, the base, behind the narrow groove, the end of the jacket of the optical cable or the optical fiber inserted into the optical fiber core A fiber groove for mounting the fiber fusion splicing part reinforcing sleeve is formed, and an abutting surface for contacting the end surface of the jacket or the reinforcing sleeve is formed at the boundary between the thick groove and the thin groove. It is what

【0008】 また上記のように構成された光ファイバ
ホルダを用いた、本発明に係る光ケーブルの接続方法
は、接続すべき光ケーブルの端部の外被を剥いで光ファ
イバ心線を露出させた後、一方の光ケーブルは、請求項
1記載の光ファイバホルダの、ベースの細溝に光ファイ
バ心線を載置し、太溝に外被の端部を載置すると共に、
外被の端面を前記前記ベースの突き当て面に当接させ、
この状態で前記光ファイバホルダの蓋を閉じて、前記光
ファイバホルダの先端から突出する光ファイバ心線の被
覆を除去すると共に、これにより露出した光ファイバを
所定の位置で切断し、他方の光ケーブルは、露出させた
光ファイバ心線に光ファイバ融着接続部補強スリーブを
挿通した後、請求項1記載の光ファイバホルダの、ベー
スの細溝に光ファイバ心線を載置し、太溝に補強スリー
ブを載置すると共に、外被の端面を補強スリーブの後端
面に当接させ、かつ補強スリーブの先端面を前記ベース
の突き当て面に当接させ、この状態で前記光ファイバホ
ルダの蓋を閉じて、前記光ファイバホルダの先端から突
出する光ファイバ心線の被覆を除去すると共に、これに
より露出した光ファイバを所定の位置で切断し、以上の
ようにしてそれぞれ光ケーブルの端末処理を行った二つ
の光ファイバホルダを融着接続機にセットして、光ファ
イバの融着接続を行い、その後、光ファイバホルダによ
る把持を解除し、前記補強スリーブを融着接続部を覆う
位置に移動させて加熱収縮させ、さらに両光ケーブルの
外被に跨るように保護部材を被せる、ことを特徴とする
ものである。
In the method of connecting an optical cable according to the present invention using the optical fiber holder configured as described above, after the outer sheath of the end portion of the optical cable to be connected is stripped to expose the optical fiber core wire. In one optical cable, the optical fiber core wire is placed in the narrow groove of the base of the optical fiber holder according to claim 1, and the end portion of the jacket is placed in the thick groove,
Abutting the end surface of the outer cover against the abutting surface of the base,
In this state, the lid of the optical fiber holder is closed to remove the coating of the optical fiber core wire protruding from the tip of the optical fiber holder, and the optical fiber exposed thereby is cut at a predetermined position, and the other optical cable After inserting the optical fiber fusion splicing part reinforcing sleeve into the exposed optical fiber core wire, the optical fiber core wire is placed in the narrow groove of the base of the optical fiber holder according to claim 1, and the optical fiber core wire is placed in the thick groove. The reinforcing sleeve is placed, the end surface of the jacket is brought into contact with the rear end surface of the reinforcing sleeve, and the tip surface of the reinforcing sleeve is brought into contact with the abutting surface of the base. To remove the coating of the optical fiber core projecting from the tip of the optical fiber holder, and cut the exposed optical fiber at a predetermined position by the above procedure. The two optical fiber holders that have undergone the end treatment of the optical cable are set in the fusion splicer to perform the fusion splicing of the optical fibers, and then the grip by the optical fiber holder is released, and the reinforcing sleeve is fused to the splicing portion. Is covered with a protective member so as to straddle the jackets of both optical cables.

【0009】[0009]

【発明の実施の形態】 以下、本発明の実施の形態を、
図面を参照して詳細に説明する。
Embodiments of the present invention will be described below.
A detailed description will be given with reference to the drawings.

【0010】 図1及び図2は本発明に係る融着接続用
光ファイバホルダの一実施形態を示す。(A)、(B)
に示す二つの光ファイバホルダ10A、10Bは同じ構造で
あり、それぞれベース12と蓋14とから構成されている。
16A、16Bは接続すべき光ケーブル、18A、18Bは光ケ
ーブル16A、16Bの外被、20A、20Bは光ファイバ心線
(UV被覆付き)、22A、22Bは光ファイバ(ガラス部
分)である。つまり、(A)は一方の光ファイバホルダ
10Aが一方の光ケーブル16Aの先端に露出する光ファイ
バ心線20Aを把持した状態を示し、(B)は他方の光フ
ァイバホルダ10Bが他方の光ケーブル16Bの先端に露出
する光ファイバ心線20Bを把持した状態を示している。
なお24は予め光ファイバ心線20Bに挿通した光ファイバ
融着接続部補強スリーブである。
1 and 2 show an embodiment of an optical fiber holder for fusion splicing according to the present invention. (A), (B)
The two optical fiber holders 10A and 10B shown in (1) have the same structure and are composed of a base 12 and a lid 14, respectively.
16A and 16B are optical cables to be connected, 18A and 18B are jackets of the optical cables 16A and 16B, 20A and 20B are optical fiber core wires (with UV coating), and 22A and 22B are optical fibers (glass portion). That is, (A) is one optical fiber holder
10A shows a state of gripping the optical fiber core wire 20A exposed at the tip of one optical cable 16A, and (B) shows the other optical fiber holder 10B gripping the optical fiber core wire 20B exposed at the tip of the other optical cable 16B. It shows the state of being done.
Reference numeral 24 is an optical fiber fusion splicing portion reinforcing sleeve which is previously inserted into the optical fiber core wire 20B.

【0011】 光ファイバホルダ10A、10Bのベース12
は、先端側に光ファイバ心線20A又は20Bを位置決めす
る細溝26を有し、後端側(蓋14の後方に突出する部分)
に光ケーブル10Aの外被18A又は補強スリーブ24を載置
する太溝28を有している。太溝28は当然のことながら細
溝26より幅が広く、深さが深くなっている。また太溝28
と細溝26の境には前記外被18A又は補強スリーブ24の端
面を当接させる突き当て面30が形成されている。突き当
て面30は図2に示すように蓋14の後端面と同じ位置に形
成することが好ましいが、蓋14の後端面より若干後方に
ずれた位置に形成してもよい。光ファイバホルダ10A、
10Bの蓋14は従来と同じ構造であり、ヒンジ機構等によ
り開閉可能になっている。
The base 12 of the optical fiber holders 10A and 10B
Has a narrow groove 26 for positioning the optical fiber core wire 20A or 20B on the front end side, and a rear end side (a portion projecting to the rear of the lid 14)
It has a thick groove 28 on which the jacket 18A of the optical cable 10A or the reinforcing sleeve 24 is placed. The thick groove 28 is naturally wider and deeper than the narrow groove 26. Also thick groove 28
At the boundary between the narrow groove 26 and the narrow groove 26, an abutting surface 30 for contacting the end surface of the jacket 18A or the reinforcing sleeve 24 is formed. The abutting surface 30 is preferably formed at the same position as the rear end surface of the lid 14 as shown in FIG. 2, but may be formed at a position slightly rearward of the rear end surface of the lid 14. Optical fiber holder 10A,
The lid 14 of 10B has the same structure as the conventional one, and can be opened and closed by a hinge mechanism or the like.

【0012】 次に、以上のように構成された光ファイ
バホルダを用いた、光ケーブルの接続方法を説明する。
まず接続すべき光ケーブル16A、16Bの端部の外被18
A、18Bを剥いで、それぞれ光ファイバ心線20A、20B
を露出させる。この接続方法では、光ファイバ心線20
A、20Bの接続余長を設ける必要がないので、外被18
A、18Bの剥ぎ取り長さは従来より大幅に短くできる。
外被18A、18Bの切断端面はケーブル軸線と直角になる
ようにすることが好ましい。
Next, a method for connecting an optical cable using the optical fiber holder configured as described above will be described.
First, the jacket 18 at the end of the optical cables 16A and 16B to be connected
A and 18B are stripped off and optical fiber cores 20A and 20B are respectively
Expose. In this connection method, the optical fiber core 20
Since it is not necessary to provide extra connection length for A and 20B, the jacket 18
The stripping length of A and 18B can be made much shorter than before.
It is preferable that the cut end surfaces of the jackets 18A and 18B be perpendicular to the cable axis.

【0013】 一方の光ケーブル16Aは、光ファイバ心
線20Aを光ファイバホルダ10Aの細溝26に載置し、外被
18Aの端部を光ファイバホルダ10Aの太溝28に載置する
と共に、外被18Aの端面をベース12の突き当て面30に当
接させる。この状態で光ファイバホルダ10Aの蓋14を閉
じて、光ファイバ心線20Aを把持する。このあと光ファ
イバホルダ10Aの先端から突出する光ファイバ心線20A
の被覆(通常はUV樹脂被覆)を除去すると共に、これ
により露出した光ファイバ22Aを所定の位置(光ファイ
バホルダの先端面から一定の長さの所)で切断する。以
上の端末処理で、外被18Aの端面から光ファイバ22Aの
先端までの長さL1は一定となる。
In one optical cable 16A, the optical fiber core wire 20A is placed in the narrow groove 26 of the optical fiber holder 10A, and
The end portion of 18A is placed in the thick groove 28 of the optical fiber holder 10A, and the end surface of the jacket 18A is brought into contact with the abutting surface 30 of the base 12. In this state, the lid 14 of the optical fiber holder 10A is closed and the optical fiber core wire 20A is gripped. After this, the optical fiber core wire 20A protruding from the tip of the optical fiber holder 10A
The coating (usually UV resin coating) is removed, and the optical fiber 22A exposed thereby is cut at a predetermined position (a fixed length from the front end surface of the optical fiber holder). Through the above terminal processing, the length L 1 from the end face of the jacket 18A to the tip of the optical fiber 22A becomes constant.

【0014】 また他方の光ケーブル16Bは、露出させ
た光ファイバ心線20Bに光ファイバ融着接続部補強スリ
ーブ24を挿通した後、補強スリーブ24の先端より先に出
ている光ファイバ心線20Bをベース12の細溝26に載置
し、補強スリーブ24をベース12の太溝28に載置し、さら
に外被18Bの端面を補強スリーブ24の後端面に当接させ
ると共に、補強スリーブ24の先端面をベース12の突き当
て面30に当接させる。この状態で光ファイバホルダ10B
の蓋14を閉じて、光ファイバ心線20Bを把持する。この
あと光ファイバホルダ10Bの先端から突出する光ファイ
バ心線20Bの被覆を除去すると共に、これにより露出し
た光ファイバ22Bを所定の位置で切断する。以上の端末
処理で、外被18Bの端面から光ファイバ22Bの先端まで
の長さL2は一定となる。
In the other optical cable 16B, after the optical fiber fusion splicing part reinforcing sleeve 24 is inserted into the exposed optical fiber core wire 20B, the optical fiber core wire 20B protruding from the tip of the reinforcing sleeve 24 is inserted. The reinforcing sleeve 24 is placed in the narrow groove 26 of the base 12, the reinforcing sleeve 24 is placed in the thick groove 28 of the base 12, and the end face of the jacket 18B is brought into contact with the rear end face of the reinforcing sleeve 24, and the tip of the reinforcing sleeve 24 is placed. The surface is brought into contact with the butting surface 30 of the base 12. In this state, the optical fiber holder 10B
The lid 14 is closed and the optical fiber core wire 20B is gripped. After that, the coating of the optical fiber core wire 20B protruding from the tip of the optical fiber holder 10B is removed, and the optical fiber 22B exposed by this is cut at a predetermined position. Through the above terminal processing, the length L 2 from the end face of the jacket 18B to the tip of the optical fiber 22B becomes constant.

【0015】 図3は上記のようにしてそれぞれ光ケー
ブル16A、16Bの端末処理を行った二つの光ファイバホ
ルダ10A、10Bを融着接続機32にセットした状態を示
す。融着接続機32は従来のものと同じである。ちなみに
34は光ファイバ融着接続用の放電電極である。図3の状
態で光ファイバ22A、22Bの融着接続を行った後、光フ
ァイバホルダ10A、10Bによる把持を解除し、図4に示
すように補強スリーブ24を融着接続された光ファイバ22
A、22Bとその両側の被覆を覆う位置に移動させて加熱
収縮させる。その後、両光ケーブル16A、16Bの外被18
A、18Bに跨るように保護部材36を被せれば、光ケーブ
ル16A、16Bの接続が完了する。
FIG. 3 shows a state in which the two optical fiber holders 10A and 10B, which have respectively finished the optical cables 16A and 16B as described above, are set in the fusion splicer 32. The fusion splicer 32 is the same as the conventional one. By the way
Reference numeral 34 is a discharge electrode for fusion splicing of optical fibers. After performing the fusion splicing of the optical fibers 22A and 22B in the state of FIG. 3, the holding by the optical fiber holders 10A and 10B is released, and the reinforcing sleeve 24 is fused and spliced as shown in FIG.
It is moved to a position that covers A and 22B and the coatings on both sides of the A and 22B, and heat-shrinked. After that, the jackets 18 of both optical cables 16A and 16B
If the protective member 36 is put over A and 18B, the connection of the optical cables 16A and 16B is completed.

【0016】 この接続方法によると、光ファイバ22
A、22Bを接続した後の、外被18A、18Bの端面間の長
さLは一定となるので、保護部材36としては長さLより
も長い一定長さのものを用意すればよい。保護部材36は
一方の外被18Aから他方の外被18Bまでの間の防水性と
機械的強度を確保できるものであればよく、例えば二つ
割りのケース状のもの、あるいはスリーブ状のものを使
用できる。防水性はゴムパッキングや防止テープ巻き、
あるいは防水コンパウンドの充填などにより確保する。
According to this connection method, the optical fiber 22
Since the length L between the end faces of the jackets 18A and 18B after connecting A and 22B is constant, a protective member having a constant length longer than the length L may be prepared. The protective member 36 may be any member that can ensure waterproofness and mechanical strength between the outer jacket 18A on one side and the outer jacket 18B on the other side. For example, a case-shaped member or a sleeve-shaped member can be used. . Waterproof is wrapped with rubber packing or prevention tape,
Alternatively, secure it by filling a waterproof compound.

【0017】 この接続方法では、光ファイバ心線20
A、20Bに接続余長を設けないので、保護部材36(従来
のクロージャに相当)はきわめて細く、短いものでよ
く、接続部全体を大幅に小型化できる。なお接続余長が
必要な場合は、光ケーブルの一部を輪取りして、接続部
付近の適当なスペースに保管しておけばよい。
In this connection method, the optical fiber core wire 20
Since no extra connection length is provided in A and 20B, the protective member 36 (corresponding to a conventional closure) may be extremely thin and short, and the entire connecting portion can be greatly downsized. If the extra connection length is required, a part of the optical cable may be looped and stored in an appropriate space near the connection portion.

【0018】[0018]

【発明の効果】 以上説明したように本発明に係る融着
接続用光ファイバホルダを使用すれば、光ファイバを融
着接続した状態で、両光ケーブルの外被の端面間の長さ
Lを必要最小限の長さで一定にできるので、保護部材と
してはその長さLを保護できるものを使用すればよく、
光ケーブルの接続部を大幅に小型化することができる。
As described above, if the fusion splicing optical fiber holder according to the present invention is used, the length L between the end faces of the jackets of both optical cables is required in a state where the optical fibers are fusion spliced. Since it can be made constant with a minimum length, it is sufficient to use a protective member that can protect the length L,
The connection portion of the optical cable can be significantly downsized.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明に係る融着接続用光ファイバホルダの
一実施形態を、(A)は接続すべき一方の光ケーブルと
共に、(B)は他方のケーブルと共に示す斜視図。
FIG. 1 is a perspective view showing an embodiment of an optical fiber holder for fusion splicing according to the present invention, (A) showing one optical cable to be connected, and (B) showing the other cable.

【図2】 (A)は図1(A)の縦断面図、(B)は図
1(B)の縦断面図。
2A is a vertical cross-sectional view of FIG. 1A, and FIG. 2B is a vertical cross-sectional view of FIG.

【図3】 図1(A)、(B)の光ファイバホルダを融
着接続機にセットした状態を示す平面図。
FIG. 3 is a plan view showing a state in which the optical fiber holders of FIGS. 1A and 1B are set in a fusion splicer.

【図4】 本発明の接続方法により接続した光ケーブル
の接続部を示す縦断面図。
FIG. 4 is a vertical cross-sectional view showing a connecting portion of an optical cable connected by a connecting method of the present invention.

【符号の説明】[Explanation of symbols]

10A、10B:光ファイバホルダ 12:ベース 14:蓋 16A、16B:光ケーブル 18A、18B:外被 20A、20B:光ファイバ心線 22A、22B:光ファイバ 24:融着接続部補強スリーブ 26:細溝 28:太溝 30:突き当て面 32:融着接続機 36:保護部材 10A, 10B: Optical fiber holder 12: Base 14: Lid 16A, 16B: Optical cable 18A, 18B: Jacket 20A, 20B: Optical fiber core wire 22A, 22B: Optical fiber 24: Reinforcement sleeve for fusion splicing part 26: Fine groove 28: Thick groove 30: Abutting surface 32: Fusion splicer 36: Protective material

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 光ケーブルの端部に露出させた光ファイ
バ心線を載置する細溝を形成したベースと、このベース
の細溝に載置した光ファイバ心線を押える蓋とを備えた
融着接続用光ファイバホルダにおいて、前記ベースの、
細溝の後方に、前記光ケーブルの外被の端部又は前記光
ファイバ心線に挿通した光ファイバ融着接続部補強スリ
ーブを載置する太溝を形成すると共に、この太溝と前記
細溝との境に前記外被又は補強スリーブの端面を当接さ
せる突き当て面を形成したことを特徴とする融着接続用
光ファイバホルダ。
1. A fusion device comprising: a base having a narrow groove in which an exposed optical fiber core wire is placed at an end of an optical cable; and a lid for pressing the optical fiber core wire placed in the narrow groove of the base. In the optical fiber holder for connecting and disconnecting, of the base,
Behind the narrow groove, forming a thick groove on which the optical fiber fusion splicing part reinforcing sleeve inserted into the end portion of the jacket of the optical cable or the optical fiber core wire is formed, and the thick groove and the narrow groove. An optical fiber holder for fusion splicing, characterized in that an abutting surface for contacting the end surface of the outer cover or the reinforcing sleeve is formed at the boundary of the above.
【請求項2】 接続すべき光ケーブルの端部の外被を剥
いで光ファイバ心線を露出させた後、 一方の光ケーブルは、請求項1記載の光ファイバホルダ
の、ベースの細溝に光ファイバ心線を載置し、太溝に外
被の端部を載置すると共に、外被の端面を前記前記ベー
スの突き当て面に当接させ、この状態で前記光ファイバ
ホルダの蓋を閉じて、前記光ファイバホルダの先端から
突出する光ファイバ心線の被覆を除去すると共に、これ
により露出した光ファイバを所定の位置で切断し、 他方の光ケーブルは、露出させた光ファイバ心線に光フ
ァイバ融着接続部補強スリーブを挿通した後、請求項1
記載の光ファイバホルダの、ベースの細溝に光ファイバ
心線を載置し、太溝に補強スリーブを載置すると共に、
外被の端面を補強スリーブの後端面に当接させ、かつ補
強スリーブの先端面を前記ベースの突き当て面に当接さ
せ、この状態で前記光ファイバホルダの蓋を閉じて、前
記光ファイバホルダの先端から突出する光ファイバ心線
の被覆を除去すると共に、これにより露出した光ファイ
バを所定の位置で切断し、 以上のようにしてそれぞれ光ケーブルの端末処理を行っ
た二つの光ファイバホルダを融着接続機にセットして、
光ファイバの融着接続を行い、その後、光ファイバホル
ダによる把持を解除し、前記補強スリーブを融着接続部
を覆う位置に移動させて加熱収縮させ、さらに両光ケー
ブルの外被に跨るように保護部材を被せる、 ことを特徴とする光ケーブル接続方法。
2. An optical fiber is provided in a narrow groove of the base of the optical fiber holder according to claim 1, after the optical fiber core wire is exposed by peeling off the jacket of the end of the optical cable to be connected. Place the core wire, place the end of the jacket in the thick groove, and bring the end surface of the jacket into contact with the abutting surface of the base, and in this state, close the lid of the optical fiber holder. , While removing the coating of the optical fiber core wire protruding from the tip of the optical fiber holder and cutting the exposed optical fiber at a predetermined position, the other optical cable is the optical fiber to the exposed optical fiber core wire. 3. After inserting the fusion splicing part reinforcing sleeve,
In the optical fiber holder described, the optical fiber core wire is placed in the narrow groove of the base, and the reinforcing sleeve is placed in the thick groove,
The end face of the jacket is brought into contact with the rear end face of the reinforcing sleeve, and the tip face of the reinforcing sleeve is brought into contact with the abutting face of the base, and in this state, the lid of the optical fiber holder is closed to make the optical fiber holder. The coating of the optical fiber core protruding from the tip of the optical fiber is removed, the exposed optical fiber is cut at a predetermined position by this, and the two optical fiber holders for which the optical cable ends are processed as described above are fused. Set it on the destination connection machine,
Performs fusion splicing of optical fibers, then releases the grip by the optical fiber holder, moves the reinforcing sleeve to a position that covers the fusion spliced part, heat shrinks it, and protects so as to straddle the jackets of both optical cables A method of connecting an optical cable, which comprises covering a member.
JP2002005584A 2002-01-15 2002-01-15 Optical fiber holder for fusion-splicing connection and optical cable connecting method using the same Pending JP2003207679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002005584A JP2003207679A (en) 2002-01-15 2002-01-15 Optical fiber holder for fusion-splicing connection and optical cable connecting method using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002005584A JP2003207679A (en) 2002-01-15 2002-01-15 Optical fiber holder for fusion-splicing connection and optical cable connecting method using the same

Publications (1)

Publication Number Publication Date
JP2003207679A true JP2003207679A (en) 2003-07-25

Family

ID=27644585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002005584A Pending JP2003207679A (en) 2002-01-15 2002-01-15 Optical fiber holder for fusion-splicing connection and optical cable connecting method using the same

Country Status (1)

Country Link
JP (1) JP2003207679A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006126487A (en) * 2004-10-28 2006-05-18 Furukawa Electric Co Ltd:The Optical cable holder
JP2009163004A (en) * 2008-01-07 2009-07-23 Sumitomo Electric Ind Ltd Fiber holder
KR20100113988A (en) * 2009-04-14 2010-10-22 스미토모 덴키 고교 가부시키가이샤 Optical fiber cable holder, fusion splicer including the holder, and fusion splicing method using the holder
JP2011107211A (en) * 2009-11-12 2011-06-02 Fujikura Ltd Method for splicing optical fiber with fusion and method for manufacturing the optical fiber having termination processing part

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006126487A (en) * 2004-10-28 2006-05-18 Furukawa Electric Co Ltd:The Optical cable holder
JP2009163004A (en) * 2008-01-07 2009-07-23 Sumitomo Electric Ind Ltd Fiber holder
KR20100113988A (en) * 2009-04-14 2010-10-22 스미토모 덴키 고교 가부시키가이샤 Optical fiber cable holder, fusion splicer including the holder, and fusion splicing method using the holder
KR101662319B1 (en) * 2009-04-14 2016-10-04 스미토모 덴키 고교 가부시키가이샤 Optical fiber cable holder, fusion splicer including the holder, and fusion splicing method using the holder
JP2011107211A (en) * 2009-11-12 2011-06-02 Fujikura Ltd Method for splicing optical fiber with fusion and method for manufacturing the optical fiber having termination processing part

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