JPH06294913A - Method for removing coating of optical fiber and jig therefor - Google Patents

Method for removing coating of optical fiber and jig therefor

Info

Publication number
JPH06294913A
JPH06294913A JP5173904A JP17390493A JPH06294913A JP H06294913 A JPH06294913 A JP H06294913A JP 5173904 A JP5173904 A JP 5173904A JP 17390493 A JP17390493 A JP 17390493A JP H06294913 A JPH06294913 A JP H06294913A
Authority
JP
Japan
Prior art keywords
optical fiber
coating
blade
base
blades
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
JP5173904A
Other languages
Japanese (ja)
Inventor
Toshiyuki Tetsu
寿幸 鉄
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP5173904A priority Critical patent/JPH06294913A/en
Publication of JPH06294913A publication Critical patent/JPH06294913A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/56—Processes for repairing optical cables
    • G02B6/566—Devices for opening or removing the mantle

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)

Abstract

PURPOSE:To safely remove coatings with good workability without requiring skill. CONSTITUTION:This jig is used to remove the coatings of the optical fiber 1 having the primary coating and secondary coating from the inner side to the outer side on a coated optical fiber. Two sheets of blades 5 with blade edges 5a faced upward are placed on a base 8 having a flat surface and the blade edges 5a are projected on the surface of this base 8 in such a manner that all the edges have the same height. Two sheets of the blades 5 adjusted in such a manner that their height correspond to the thickness of the coatings of the optical fiber 1 are embedded into the base so as to face each other to an inverted V-shape with which the spacing between the blades is narrower to the front side and is wider toward the deep side.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明は、光ファイバの被覆除去
方法、及び光ファイバの被覆を除去するために使用する
光ファイバの被覆除去治具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 coating removing method and an optical fiber coating removing jig used for removing the optical fiber coating.

【０００２】[0002]

【従来の技術】一般に、光ファイバを接続したり、光フ
ァイバに加工を施したりする時に、光ファイバの被覆を
除去する必要がある。例えば、融着・延伸法により光カ
プラを製造する場合には、光ファイバの融着・延伸する
部分の被覆を完全に除去する必要がある。2. Description of the Related Art Generally, it is necessary to remove the coating of an optical fiber when connecting the optical fiber or when processing the optical fiber. For example, when manufacturing an optical coupler by the fusion / stretching method, it is necessary to completely remove the coating on the fusion / stretching portion of the optical fiber.

【０００３】従来の光ファイバの被覆除方法は図７、図
８に示すように、光ファイバ１を指先に載せ、刃物５を
用いてその刃先５ａを光ファイバ１の被覆２に斜め方向
より切り込ませ、光ファイバ芯線４の手前の一次被覆３
に届いた時、刃物５をその位置に維持して光ファイバ１
を切り込み方向と逆に引っ張ることにより、片面の二次
被覆２を取り除き、続いて同様に反対面の二次被覆２を
取り除く。なお、刃物５で取り除くことができずに残っ
た被覆３はシリコーンよりなる一次被覆であり刃物５を
用いずとも容易に除去できる。As shown in FIGS. 7 and 8, a conventional method for removing a coating of an optical fiber is to place the optical fiber 1 on a fingertip and cut a blade 5a of the coating 2 of the optical fiber 1 with a knife 5 from an oblique direction. Insert the primary coating 3 in front of the optical fiber core wire 4
The optical fiber 1 while maintaining the blade 5 in that position
By pulling in a direction opposite to the cutting direction, the secondary coating 2 on one side is removed, and subsequently the secondary coating 2 on the opposite side is also removed. The remaining coating 3 that cannot be removed by the blade 5 is a primary coating made of silicone and can be easily removed without using the blade 5.

【０００４】[0004]

【発明が解決しようとする課題】しかし、上述した従来
の光ファイバの被覆除去方法には、次のような欠点があ
る。However, the above-mentioned conventional method of removing the coating of the optical fiber has the following drawbacks.

【０００５】(1) 光ファイバ１に切り込みを入れる時の
刃物５の押付力、光ファイバ１と刃物５のなす角度θに
よっては光ファイバ１を断線させてしまうため、被覆除
去作業には相当の熟練が要求される。(1) Since the optical fiber 1 is broken depending on the pressing force of the blade 5 when making a cut in the optical fiber 1 and the angle θ formed by the optical fiber 1 and the blade 5, the coating removal work is considerable. Skill is required.

【０００６】(2) 通常、被覆を除去する部分の長さが定
められているため、予め光ファイバ１に被覆を除去する
部分を示す印を、被覆に切り込みを入れることによって
つける必要がある。(2) Usually, since the length of the portion where the coating is removed is determined, it is necessary to make a mark on the optical fiber 1 in advance by making a cut in the coating.

【０００７】(3) 指先に直接刃物５を当てるので非常に
危険である。(3) Since the blade 5 is directly applied to the fingertip, it is very dangerous.

【０００８】(4) 光ファイバ１に刃物５で切り込みを入
れ、刃物５を光ファイバ１に当てて引っ張るとき、光フ
ァイバ１と刃物５との相対位置が一定していないので、
刃物５の食い込みが深いと芯線４の表面に傷をつけてし
まい、カプラ等の製造後、その傷が成長し光ファイバ１
の断線を引き起こす。(4) When the optical fiber 1 is cut with the blade 5 and the blade 5 is applied to the optical fiber 1 and pulled, the relative positions of the optical fiber 1 and the blade 5 are not constant.
If the bite 5 is deeply bitten, the surface of the core wire 4 will be damaged, and after manufacturing the coupler or the like, the damage will grow and the optical fiber 1
Cause wire breakage.

【０００９】そこで、このような欠点を解消するため
に、特開平２−３０４５０７号公報には、光ファイバに
被覆を除去する部分の長さの前後位置に予め芯線表面に
達する切り込みを入れ、除去する部分を示す印とし、被
覆を除去する部分の先頭に刃物を当てる際に、光ファイ
バを曲げて刃物が光ファイバに接線方向に入るように
し、しかも刃物の刃先が光ファイバ芯線の表面に届くよ
うに工夫した被覆除去装置が提案されている。Therefore, in order to eliminate such a drawback, in Japanese Patent Laid-Open No. 2-304507, a notch reaching the surface of the core wire is previously made at the front and rear positions of the length of the portion where the coating is to be removed. When you apply the blade to the beginning of the part to remove the coating, bend the optical fiber so that the blade enters the optical fiber tangentially, and the blade edge of the blade reaches the surface of the optical fiber core wire A coating removing device devised as described above has been proposed.

【００１０】しかし、この場合でも、被覆を除去する部
分の長さの前後位置に、除去する部分を示す印を、被覆
に切り込みを入れることにより被覆を除去する部分の長
さにつける必要があり、この印を光ファイバ芯線の表面
に傷をつけないように入れる作業に熟練を要し、かつ時
間もかかる。However, even in this case, it is necessary to make a mark at the front and rear of the length of the portion where the coating is to be removed, to indicate the portion to be removed by making a cut in the coating. It takes a lot of skill and time to insert this mark so as not to scratch the surface of the optical fiber core wire.

【００１１】本発明の目的は、刃先の食い込みを一定に
する当て板を利用することによって、前記した従来技術
の欠点を解消し、熟練を必要とせず、作業性良く、かつ
安全な被覆除去ができる光ファイバの被覆除去方法及び
その治具を提供することにある。The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art by utilizing a backing plate for making the biting of the cutting edge constant, and without the need for skill, workability is good, and safe coating removal is possible. An object of the present invention is to provide a method of removing the coating of an optical fiber and a jig therefor.

【００１２】[0012]

【課題を解決するための手段】上記課題は本発明の光フ
ァイバの被覆除去方法及びその治具を開発することによ
って達成される。The above-mentioned object can be achieved by developing a method for removing an optical fiber coating and a jig therefor according to the present invention.

【００１３】すなわち、本発明の方法は、平な表面を有
し、その表面から刃物を刃先を斜めに突き出し、表面か
らの刃先の高さが光ファイバの被覆の厚みに相当するよ
うに調整された台を備え、光ファイバを台の平な表面に
達するまで刃物に押し付けて、刃先を光ファイバの被覆
に斜めに切り込ませ、光ファイバへの切り込みを維持し
つつ、台に対して光ファイバを刃先が切り込む方向に相
対的に移動させて光ファイバ芯線の外周に設けられた被
覆を除去するようにしたものである。That is, the method of the present invention has a flat surface, and the blade tip is obliquely projected from the surface, and the height of the blade tip from the surface is adjusted so as to correspond to the thickness of the coating of the optical fiber. Equipped with a base, press the optical fiber against the tool until it reaches the flat surface of the base, and cut the cutting edge at an angle into the coating of the optical fiber. Is relatively moved in the cutting direction of the blade to remove the coating provided on the outer circumference of the optical fiber core wire.

【００１４】また、本発明の治具は、光ファイバ芯線の
外周に設けられた被覆を除去するために使用する光ファ
イバの被覆除去治具において、平な表面を有する台に２
枚の刃物を設け、該２枚の刃物の刃先を斜め上にして相
対させ、その相互間隔が一端を狭く他端に広がる逆ハの
字形となるように配置し、かつ台の表面に刃先が同じ高
さになるように突き出し、表面からの刃先の高さが上記
光ファイバの被覆の厚みに相当するように調整してなる
ものである。Further, the jig of the present invention is an optical fiber coating removing jig used for removing the coating provided on the outer periphery of an optical fiber core wire, and is provided on a table having a flat surface.
Two blades are provided, the blade edges of the two blades are made to face each other diagonally upward, and the two blades are arranged so that their mutual interval is narrowed from one end to the other end, and the blade tip is placed on the surface of the base. The protrusions are adjusted to have the same height, and the height of the cutting edge from the surface is adjusted so as to correspond to the thickness of the coating of the optical fiber.

【００１５】また、本発明の治具は、合わせ面が平な２
枚のベース片にそれぞれ刃物を設け、該刃物の刃先を合
わせ面から斜めに突き出して相対させ、合わせ面からの
刃先の高さが光ファイバの被覆の厚みに相当するように
調整され、この２枚のベース片の合わせ面間に光ファイ
バを挟んで光ファイバの被覆に刃先を斜から切り込ませ
るベースと、この２枚のベース片からなるベースを上記
刃先が光ファイバに切り込む方向に沿って移動させるス
テージと、ベースの移動量を調整して被覆除去長を決め
る移動量調整手段とを備えたものである。The jig of the present invention has a flat mating surface.
A blade is provided on each of the base pieces, and the blade edge of the blade is obliquely projected from the mating surface to face each other, and the height of the blade from the mating surface is adjusted so as to correspond to the thickness of the coating of the optical fiber. A base made by obliquely cutting the cutting edge into the coating of the optical fiber by sandwiching the optical fiber between the mating faces of the two base pieces, and a base made of these two base pieces along the direction in which the cutting edge cuts the optical fiber. It is provided with a stage to be moved and a moving amount adjusting means for adjusting the moving amount of the base to determine the coating removal length.

【００１６】[0016]

【作用】本発明の方法において、光ファイバを台の表面
に達するまで刃物に押し付ると、台に設けた刃先の高さ
が表面から光ファイバの被覆の厚みに相当するように調
整されているので、刃物の刃先が光ファイバの被覆の深
さに切り込まれる。従って、その切り込みを維持したま
ま光ファイバを台の平な面に押し付けながら、刃先が切
り込む方向に台に対して光ファイバを移動させるか、ま
たは光ファイバに対して台を移動させると、刃先が一定
の深さを保ったまま連続的に光ファイバに沿って切り込
まれていくので、光ファイバ芯線に傷をつけることなく
容易に、かつ安全に被覆の除去作業を行うことができ
る。In the method of the present invention, when the optical fiber is pressed against the tool until it reaches the surface of the table, the height of the cutting edge provided on the table is adjusted so as to correspond to the thickness of the coating of the optical fiber from the surface. Therefore, the cutting edge of the cutting tool is cut into the depth of the coating of the optical fiber. Therefore, while pressing the optical fiber against the flat surface of the base while maintaining the cut, when moving the optical fiber with respect to the base in the cutting direction of the blade, or moving the base with respect to the optical fiber, the blade tip Since the optical fiber is continuously cut along the optical fiber while maintaining a constant depth, it is possible to easily and safely remove the coating without damaging the optical fiber core wire.

【００１７】本発明の治具において、２枚の刃物を跨ぐ
ように光ファイバを刃物に当て、台の表面に達するまで
押し付ける。すると、台に設けた２枚の刃先の高さが表
面から光ファイバの被覆の厚みに相当するように調整さ
れているので、刃先に当る光ファイバの２箇所で被覆の
深さに各刃先が切り込まれる。従って、その切り込みを
維持したまま光ファイバを刃物に押し付けながら、刃物
間隔が広がっている方から刃物間隔が狭まる方へ台また
は光ファイバを移動させると、２枚の刃先が共に一定の
深さを保ったまま光ファイバの両方向から中心に向って
切り込まれて行く。その結果、刃物を跨ぐ場所に応じた
刃物間隔の長さ分の被覆の除去作業が片面について行わ
れる。反対面については刃物を使わなくても容易に除去
できる。これにより、光ファイバ芯線に傷をつけること
なく容易に、かつ安全に被覆の除去作業を行うことがで
きる。In the jig of the present invention, the optical fiber is applied to the blade so as to straddle the two blades, and is pressed until the surface of the base is reached. Then, since the heights of the two cutting edges provided on the table are adjusted so as to correspond to the thickness of the coating of the optical fiber from the surface, the cutting depth of each cutting edge is different at the two positions of the optical fiber which hit the cutting edge. Be cut into. Therefore, while pressing the optical fiber against the cutting tool while maintaining the cut, when moving the table or the optical fiber from the direction where the cutting tool interval is wide to the direction where the cutting tool interval is narrow, the two cutting edges both have a certain depth. While keeping it, the optical fiber is cut from both directions toward the center. As a result, the work of removing the coating for the length of the blade interval according to the place where the blade is straddled is performed on one side. The opposite surface can be easily removed without using a knife. As a result, the work of removing the coating can be performed easily and safely without damaging the optical fiber core wire.

【００１８】また、本発明の治具において、光ファイバ
の被覆非除去部分をステージに固定し、被覆除去したい
部分を２枚のベース片間に挟んで固定する。これによ
り、各ベース片に設けた刃先の高さが表面から光ファイ
バの被覆の厚みに相当するように調整されているので、
各刃先に当る光ファイバの両面から被覆の深さに各刃先
が切り込まれる。その状態を維持したまま、ステージに
対して刃先が光ファイバに切り込む方向に沿ってベース
を所定量移動させる。ベース移動は移動量調整手段によ
って調整された距離だけ移動する。この移動によって移
動量に応じた長さの被覆が両面同時に除去される。Further, in the jig of the present invention, the non-coated portion of the optical fiber is fixed to the stage, and the portion of which the coating is desired to be removed is sandwiched and fixed between the two base pieces. Thereby, since the height of the cutting edge provided on each base piece is adjusted to correspond to the thickness of the coating of the optical fiber from the surface,
Each cutting edge is cut into the depth of the coating from both sides of the optical fiber that hits each cutting edge. While maintaining that state, the base is moved by a predetermined amount along the direction in which the cutting edge cuts into the optical fiber with respect to the stage. The base movement moves by the distance adjusted by the movement amount adjusting means. By this movement, the coating having a length corresponding to the movement amount is removed simultaneously on both surfaces.

【００１９】[0019]

【実施例】本発明の光ファイバの被覆除去治具の第１実
施例について図１〜４を用いて説明する。EXAMPLE A first example of the optical fiber coating removing jig of the present invention will be described with reference to FIGS.

【００２０】図２に示すように、２枚の刃物５を平な表
面を有する台８の上に、刃先５ａを斜め上にして、台８
の表面に刃先５ａが全て同じ高さになるように突き出
す。２枚の刃物５は、その相互間隔が手前を狭く奥に向
って広がる逆ハの字形に相対するようにして埋め込む。
このとき、刃物５の刃先５ａと台８の表面とのなす角度
は図３に示すように、θになるように固定する。As shown in FIG. 2, the two blades 5 are placed on a table 8 having a flat surface, and the cutting edge 5a is slanted upward so that the table 8 is formed.
The blade edges 5a are projected so that they are all at the same height. The two blades 5 are embedded in such a manner that the distance between them is opposite to the inverted C-shape that narrows toward you and extends toward the back.
At this time, the angle formed by the cutting edge 5a of the cutting tool 5 and the surface of the base 8 is fixed at θ as shown in FIG.

【００２１】図２の台８の上面両側に付けた印７は、そ
の横断線における２枚の刃物５の間隔を記入したもので
あり、所定の被覆除去長さに相当する印７の位置から被
覆除去操作を開始するためのマークである。Marks 7 provided on both sides of the upper surface of the base 8 in FIG. 2 indicate the intervals between the two blades 5 on the transverse line, and the position of the mark 7 corresponding to a predetermined coating removal length is indicated. This is a mark for starting the coating removal operation.

【００２２】図３に示すように、台８の表面から刃先５
ａまでの高さｈは、図４に示す光ファイバ芯線４に施し
た二次被覆２の厚みとなるように調節し、被覆除去操作
時に刃先５ａが光ファイバ芯線４の表面に触れないよう
にする。なお、図示するように、通常、光ファイバ１
は、コアとクラッドからなる光ファイバ芯線４と、その
外周に順に一次被覆３、二次被覆２を設けて構成され
る。As shown in FIG. 3, from the surface of the base 8 to the cutting edge 5
The height h up to a is adjusted so as to be the thickness of the secondary coating 2 applied to the optical fiber core wire 4 shown in FIG. 4 so that the cutting edge 5a does not touch the surface of the optical fiber core wire 4 during the coating removing operation. To do. As shown in the figure, the optical fiber 1 is usually used.
Is configured by providing an optical fiber core wire 4 composed of a core and a clad, and a primary coating 3 and a secondary coating 2 in that order on the outer periphery thereof.

【００２３】次に、図１を用いて上述した光ファイバの
被覆除去治具を用いた被覆除去操作について説明する。Next, a coating removing operation using the above-described optical fiber coating removing jig will be described with reference to FIG.

【００２４】光ファイバ１の被覆２を除去する部分を中
央にして、その両側を手で持ち、所定の被覆除去長さに
相当する印７の位置で、光ファイバ１を２枚の刃物５を
跨ぐように、これらに当てる。そして、台８の表面に達
するまで光ファイバ１を刃物５に押し付けて、刃先５ａ
を光ファイバ１に切り込ませ二次被覆２の深さまで食い
込むようにする。With the portion of the optical fiber 1 from which the coating 2 is to be removed as the center, both sides are held by hand, and the optical fiber 1 is cut by two blades 5 at the position of the mark 7 corresponding to a predetermined coating removal length. Hit these like straddling. Then, the optical fiber 1 is pressed against the blade 5 until the surface of the table 8 is reached, and the blade tip 5a
Is cut into the optical fiber 1 so as to cut into the depth of the secondary coating 2.

【００２５】続いて、図１に示した矢印の方向（治具の
奥から手前の方向）に、光ファイバ１を２枚の刃物５に
押しつけながら引く。このとき、光ファイバ１を台８の
表面に常に当たるようにして台８に当て板機能をもた
せ、刃先５ａが二次被覆２の厚さよりも浅くなったり、
二次被覆２の厚さよりも深くなったりしないようにす
る。このようにして光ファイバ１の二次被覆２の片面が
光ファイバ１から除去される。残った反対面の二次被覆
２と一次被覆３は刃物５などを使用しなくとも容易に除
去できる。Then, the optical fiber 1 is pulled while being pressed against the two blades 5 in the direction of the arrow shown in FIG. 1 (direction from the back of the jig to the front). At this time, the optical fiber 1 is always brought into contact with the surface of the base 8 so that the base 8 has a function of a backing plate, and the blade edge 5a becomes shallower than the thickness of the secondary coating 2.
Do not make it deeper than the thickness of the secondary coating 2. In this way, one side of the secondary coating 2 of the optical fiber 1 is removed from the optical fiber 1. The remaining secondary coating 2 and primary coating 3 on the opposite surface can be easily removed without using a blade 5 or the like.

【００２６】本実施例によれば、光ファイバに刃物の刃
先を切り込ませる角度θが常に一定になるので光ファイ
バの断線が起こらず、光ファイバ芯線に刃先が当らない
ので、光ファイバ芯線表面に傷がつかず、例えば光カプ
ラを製造する場合には、カプラ製造後の長期信頼性が向
上する。特に治具の台の表面に被覆を除去する長さを目
盛りで表示するようにすると、光ファイバに被覆除去長
さの前後位置に除去する部分を示す切り込み印をつける
必要がなく、作業効率が大幅に向上する。また、刃物に
直接手を触れる必要がないため安全性も向上する。According to this embodiment, since the angle θ at which the blade edge of the blade is cut into the optical fiber is always constant, the optical fiber is not broken and the optical fiber core is not hit by the blade edge. When the optical coupler is manufactured, the long-term reliability after manufacturing the coupler is improved. In particular, if the length of the coating removal is displayed on the scale of the jig base, it is not necessary to make cut marks on the optical fiber at the front and rear positions of the coating removal length to indicate the portion to be removed. Greatly improved. In addition, safety is improved because there is no need to directly touch the blade.

【００２７】ここで、刃物５は、光ファイバ１の被覆を
除去できるものであれば特に限定されないが、例えばイ
ンジェクタ剃刀刃やカンナ刃のような刃物を例に挙げる
ことができる。刃物は、図４や図８に断面が示されてい
るように、裏面が平で斜めに刃先付けが行われている刃
物が適当である。治具の台８に刃物５を取り付ける方法
としては、図１や図２に示したように逆ハの字形に動か
ないようにしっかり台８に埋め込む方法で行うが、例え
ばカンナ台にカンナ刃を取り付けるような仕組みが例示
できる。The blade 5 is not particularly limited as long as it can remove the coating of the optical fiber 1, and examples thereof include an injector razor blade and a planer blade. As the blade, a blade whose back surface is flat and whose tip is obliquely attached is suitable as shown in a cross section in FIGS. 4 and 8. As a method for attaching the blade 5 to the jig base 8, as shown in FIGS. 1 and 2, the jig 5 is firmly embedded in the base 8 so as not to move in an inverted C shape. A mechanism for attaching can be exemplified.

【００２８】なお、上記実施例では本治具を用いて１本
の光ファイバを被覆除去する場合について説明したが、
２本以上の光ファイバを治具に押し付けて同時に被覆除
去するようにしてもよい。また、被覆除去する際に光フ
ァイバを引くようにしたが、台の方を移動させてもよ
い。この場合、光ファイバは平な基台上に固定すること
が好ましい。また台に設ける刃物は、２本ではなく１本
とすることもできる。この場合、刃物は逆ハの字形の１
本を除いた配置、すなわち平面視で斜めに埋め込むよう
にする。In the above embodiment, the case of covering and removing one optical fiber using this jig has been described.
Two or more optical fibers may be pressed against the jig to simultaneously remove the coating. Although the optical fiber is pulled when removing the coating, the table may be moved. In this case, it is preferable to fix the optical fiber on a flat base. Further, the number of blades provided on the base may be one instead of two. In this case, the blade is an inverted C-shaped 1
Arrangement excluding the book, that is, it is embedded obliquely in a plan view.

【００２９】さて次に、光ファイバの被覆除去治具の第
２実施例について説明する。第１実施例のものは、光フ
ァイバの両側を手で持ち、刃物に押しつけながら引っ張
る操作を必要としたが、本実施例は光ファイバを直接手
で持たないでも被覆除去でき、しかも被覆の両面除去が
同時にできるものである。Next, a second embodiment of the optical fiber coating removing jig will be described. In the first embodiment, both sides of the optical fiber are held by hand, and the operation of pulling the blade while pressing it against the blade is required, but in the present embodiment, the coating can be removed without directly holding the optical fiber, and both sides of the coating can be removed. It can be removed at the same time.

【００３０】この第２実施例の光ファイバ被覆除去治具
を図５を用いて説明する。治具の構成は、１枚の刃物５
をそれぞれに設けた２枚のベース片１２、１３を有する
ベース２０と、このベース２０を上下方向に所定量移動
させるステージ１１と、ベースの移動量を調整するスト
ッパ１６等から主に構成される。The optical fiber coating removing jig of the second embodiment will be described with reference to FIG. The jig consists of one blade 5
It is mainly composed of a base 20 having two base pieces 12 and 13 provided on each of them, a stage 11 for moving the base 20 in a vertical direction by a predetermined amount, a stopper 16 for adjusting the moving amount of the base, and the like. .

【００３１】ベース２０は、一辺を枢支して開閉自在と
した２枚のベース片１２、１３を有する。このベース片
１２、１３は、閉じたときの合わせ面が互に平な面を持
ち、各面に刃物５がそれぞれ埋め込まれている。その刃
物５の刃先５ａは、各表面からを斜めに突き出して相対
させてあり、表面からの刃先の高さが光ファイバ１の二
次被覆２または一次被覆３の途中までの厚みに相当する
ように調整されている（図６参照）。The base 20 has two base pieces 12, 13 which are pivotally supported on one side and can be opened and closed. The base pieces 12 and 13 have flat mating surfaces when closed, and the blades 5 are embedded in the respective surfaces. The blade edge 5a of the blade 5 is obliquely protruded from each surface and made to face each other, and the height of the blade edge from the surface corresponds to the thickness of the secondary coating 2 or the primary coating 3 of the optical fiber 1 to the middle. Has been adjusted (see FIG. 6).

【００３２】ステージ１１は、矩形の枠体で構成され
る。このステージ１１には、枠内の中空部に上記ベース
２０が上下移動自在で、ベース片１２、１３の合わせ面
をステージ面と平行に、かつベース片を埋め込んだ刃先
５ａが上下移動方向と直交する方向になるように取り付
けられている。その取付け構造は、具体的には、一方の
ベース片１７を貫通してベース２０の上下移動を許容す
るシャフト１４、シャフト１４に嵌挿されてベース２０
をステージ１１の枠内の定位置に戻すためのスプリング
１５、シャフト１４の端部に設けられてベース２０の移
動距離を調整するストッパ１６からなる。The stage 11 is composed of a rectangular frame. In the stage 11, the base 20 is vertically movable in a hollow portion in a frame, the mating surface of the base pieces 12 and 13 is parallel to the stage surface, and the cutting edge 5a having the base piece embedded therein is orthogonal to the vertical movement direction. It is attached so that it is oriented in the direction. Specifically, the mounting structure is such that the shaft 14 that penetrates one of the base pieces 17 and allows the base 20 to move up and down, and that is fitted and inserted into the shaft 14 is used.
It includes a spring 15 for returning to a fixed position within the frame of the stage 11, and a stopper 16 provided at the end of the shaft 14 for adjusting the moving distance of the base 20.

【００３３】次に、図５、図６を用いて上述した光ファ
イバの被覆除去治具を用いた被覆除去操作について説明
する。Next, a coating removing operation using the above-described optical fiber coating removing jig will be described with reference to FIGS.

【００３４】光ファイバ１をベース２０を構成するベー
ス片１２、１３間にセットするために、一方のベース片
１２をシャフト１４に貫通させた他方のベース片１３側
に倒し（図中矢印１７方向）、両者を合せて固定する。
そして、光ファイバ１の上方をステージ１１の上辺に接
着テープ１９などによりしっかりと固定する。そのまま
の状態でベース片１２、１３を合わせたベース２０を下
部方向（図中矢印１８方向）へ移動する。移動はストッ
パ１６で止まる。これにより、ベース片１２、１３から
突き出している刃先５ａにより光ファイバ１の両面から
二次被覆２が所定長に亘って除去される。In order to set the optical fiber 1 between the base pieces 12 and 13 constituting the base 20, one base piece 12 is tilted toward the other base piece 13 side through which the shaft 14 is penetrated (in the direction of arrow 17 in the figure). ), And fix them together.
Then, the upper side of the optical fiber 1 is firmly fixed to the upper side of the stage 11 with an adhesive tape 19 or the like. In this state, the base 20 including the base pieces 12 and 13 is moved downward (in the direction of arrow 18 in the figure). The movement is stopped by the stopper 16. As a result, the secondary coating 2 is removed from both surfaces of the optical fiber 1 over a predetermined length by the cutting edge 5a protruding from the base pieces 12 and 13.

【００３５】光ファイバ１の被覆が二次被覆２まで、あ
るいは一次被覆２の途中まで除去される様子を図６を用
いて説明する。光ファイバ１をベース片１２、１３で挟
むと、刃物５は光ファイバ被覆２に両面から切り込む。
その時の刃物５間の距離δを光ファイバ芯線４に触れな
いように調整しておく。ステージ枠上部の定位置から、
予め光ファイバ被覆除去長に設定しているストッパ１６
までベース片１２、１３を移動させることにより、光フ
ァイバ被覆２が除去される。なお、完全に除去されなか
った光ファイバ１の一次被覆３はシリコーン製であるた
め刃物５を用いなくても指先で容易に除去できる。The manner in which the coating of the optical fiber 1 is removed to the secondary coating 2 or to the middle of the primary coating 2 will be described with reference to FIG. When the optical fiber 1 is sandwiched between the base pieces 12 and 13, the blade 5 cuts into the optical fiber coating 2 from both sides.
The distance δ between the blades 5 at that time is adjusted so as not to touch the optical fiber core wire 4. From the fixed position on the top of the stage frame,
Stopper 16 that has been set in advance to the optical fiber coating removal length
The optical fiber coating 2 is removed by moving the base pieces 12, 13 up to. Since the primary coating 3 of the optical fiber 1 which has not been completely removed is made of silicone, it can be easily removed with a fingertip without using the blade 5.

【００３６】このように第２実施例によれば、直接光フ
ァイバに手を触れないで被覆の両面除去が同時にできる
ので、さらに被覆除去作業が確実、かつ容易になる。As described above, according to the second embodiment, both sides of the coating can be removed at the same time without directly touching the optical fiber, so that the coating removal work can be performed more reliably and easily.

【００３７】なお、第２実施例では本治具を用いて１本
の光ファイバを被覆除去する場合について説明したが、
２本以上の光ファイバを枠に固定して同時に被覆除去す
るようにしてもよい。また、被覆除去する際にベースを
移動するようにしたが、ステージの方を移動させてもよ
い。また台に設ける刃物は、２本ではなく１本とするこ
ともできる。In the second embodiment, the case of covering and removing one optical fiber using this jig has been described.
It is also possible to fix two or more optical fibers to the frame and simultaneously remove the coating. Although the base is moved when removing the coating, the stage may be moved. Further, the number of blades provided on the base may be one instead of two.

【００３８】[0038]

【発明の効果】 (1) 請求項１に記載の光ファイバの被覆除去方法によれ
ば、光ファイバを台刃物に押し付けつつ台に対して相対
移動させるだけで、被覆の除去が行えるので、作業効率
が大幅に向上する。EFFECTS OF THE INVENTION (1) According to the optical fiber coating removal method of claim 1, the coating can be removed by merely moving the optical fiber relative to the base while pressing the optical fiber against the base blade. Greatly improves efficiency.

【００３９】(2) 請求項２に記載の光ファイバの被覆除
去治具によれば、刃先を切り込ませる角度が一定になる
ので、光ファイバ芯線表面に傷をつけることも、断線を
起こすこともなく、光ファイバ片面の被覆を確実に除去
でき、被覆除去後の光ファイバの長期信頼性が向上す
る。(2) According to the optical fiber coating removal jig of the second aspect, since the angle at which the cutting edge is cut is constant, the optical fiber core wire surface may be scratched or broken. Moreover, the coating on one side of the optical fiber can be reliably removed, and the long-term reliability of the optical fiber after the coating is removed is improved.

【００４０】(3) 請求項３に記載の光ファイバの被覆除
去治具によれば、(2) の効果に加えて光ファイバ両面の
被覆を同時かつ確実に除去でき、また刃物の移動距離が
調整できるため作業効率が大幅に向上する。(3) According to the optical fiber coating removing jig of the third aspect, in addition to the effect of (2), the coating on both sides of the optical fiber can be removed simultaneously and reliably, and the moving distance of the blade can be increased. Work efficiency is greatly improved because it can be adjusted.

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

【図１】本発明の光ファイバ被覆除去方法の第１実施例
による被覆除去作業を示す説明図。FIG. 1 is an explanatory diagram showing a coating removing operation according to a first embodiment of an optical fiber coating removing method of the present invention.

【図２】第１実施例による光ファイバ被覆除去治具の正
面図。FIG. 2 is a front view of an optical fiber coating removing jig according to the first embodiment.

【図３】第１実施例による光ファイバ被覆除去治具の断
面図。FIG. 3 is a sectional view of an optical fiber coating removing jig according to the first embodiment.

【図４】第１実施例による光ファイバ被覆への刃物の切
り込み説明図。FIG. 4 is an explanatory view of cutting a blade into an optical fiber coating according to the first embodiment.

【図５】第２実施例による光ファイバ被覆除去治具の説
明図。FIG. 5 is an explanatory view of an optical fiber coating removing jig according to a second embodiment.

【図６】第２実施例による光ファイバ被覆への刃物の切
り込み説明図。FIG. 6 is an explanatory view of cutting a blade into an optical fiber coating according to a second embodiment.

【図７】従来の光ファイバ被覆除去作業を示す説明図。FIG. 7 is an explanatory view showing a conventional optical fiber coating removing operation.

【図８】従来の光ファイバ被覆への刃物の切り込み説明
図。FIG. 8 is an explanatory view of cutting a blade into a conventional optical fiber coating.

【符号の説明】[Explanation of symbols]

１ 光ファイバ ２ 二次被覆 ３ 一次被覆 ４ 光ファイバ芯線 ５ 刃物 ６ 治具の台 ７ 印（目盛り） １１ ステージ １２ ベース片 １３ ベース片 １４ シャフト １５ スプリング １６ ストッパ ２０ ベース ｈ 台表面から刃物先端の高さ θ 光ファイバと刃物のなす角度 δ ベース片を合せたときの相対する刃物先端間の間隙 1 optical fiber 2 secondary coating 3 primary coating 4 optical fiber core wire 5 blade 6 jig stand 7 mark (scale) 11 stage 12 base piece 13 base piece 14 shaft 15 spring 16 stopper 20 base h height of blade tip from table surface Angle θ Angle between optical fiber and blade δ Gap between opposing blade tips when base pieces are aligned

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】平な表面を有し、その表面から刃物を刃先
を斜めに突き出し、表面からの刃先の高さが光ファイバ
の被覆の厚みに相当するように調整された台を備え、上
記光ファイバを台の平な表面に達するまで刃物に押し付
けて、刃先を光ファイバの被覆に斜めから切り込ませ、
上記光ファイバへの切り込みを維持しつつ、台に対して
光ファイバを刃先が切り込む方向に相対的に移動させて
光ファイバ芯線の外周に設けられた被覆を除去すること
を特徴とする光ファイバの被覆除去方法。1. A table having a flat surface, the blade tip protruding obliquely from the surface, and the height of the blade tip from the surface adjusted to correspond to the thickness of the coating of the optical fiber, Press the optical fiber against the tool until it reaches the flat surface of the table, and cut the blade tip diagonally into the optical fiber coating.
While maintaining the cut to the optical fiber, the optical fiber is characterized in that the coating provided on the outer periphery of the optical fiber core wire is removed by relatively moving the optical fiber in the cutting direction of the optical fiber with respect to the table. Coating removal method. 【請求項２】光ファイバ芯線の外周に設けられた被覆を
除去するために使用する光ファイバの被覆除去治具にお
いて、平な表面を有する台に２枚の刃物を設け、該２枚
の刃物の刃先を斜め上にして相対させ、その相互間隔が
一端を狭く他端に広がる逆ハの字形となるように配置
し、かつ台の表面に刃先が同じ高さになるように突き出
し、表面からの刃先の高さが上記光ファイバの被覆の厚
みに相当するように調整してなることを特徴とする光フ
ァイバの被覆除去治具。2. An optical fiber coating removing jig used for removing coating provided on the outer periphery of an optical fiber core wire, wherein two blades are provided on a table having a flat surface, and the two blades are provided. The blade edges of the blades are made to face each other diagonally, and are arranged so that their mutual intervals are narrowed from one end to the other end and have an inverted C shape, and the blade edges protrude from the surface so that they are at the same height. A jig for removing an optical fiber coating, wherein the height of the cutting edge is adjusted so as to correspond to the thickness of the coating of the optical fiber. 【請求項３】合わせ面が平な２枚のベース片にそれぞれ
刃物を設け、該刃物の刃先を合わせ面から斜めに突き出
して相対させ、合わせ面からの刃先の高さが光ファイバ
の被覆の厚みに相当するように調整され、この２枚のベ
ース片の合わせ面間に光ファイバを挟んで光ファイバの
被覆に刃先を斜から切り込ませるベースと、この２枚の
ベース片からなるベースを上記刃先が光ファイバに切り
込む方向に沿って移動させるステージと、上記ベースの
移動量を調整して被覆除去長を決める移動量調整手段と
を備えたことを特徴とする光ファイバの被覆除去治具。3. A blade is provided on each of two base pieces having flat mating surfaces, and the blade edges of the blades are obliquely projected from the mating surfaces to be opposed to each other, and the height of the blade from the mating surface is equal to that of the optical fiber coating. A base that is adjusted to correspond to the thickness and that has an optical fiber sandwiched between the mating surfaces of these two base pieces to cut the cutting edge obliquely into the coating of the optical fiber, and a base that consists of these two base pieces. An optical fiber coating removal jig comprising a stage for moving the blade edge along the direction of cutting into the optical fiber, and a movement amount adjusting means for adjusting the movement amount of the base to determine the coating removal length. .
JP5173904A 1993-02-15 1993-07-14 Method for removing coating of optical fiber and jig therefor Pending JPH06294913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5173904A JPH06294913A (en) 1993-02-15 1993-07-14 Method for removing coating of optical fiber and jig therefor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5-4447 1993-02-15
JP444793 1993-02-15
JP5173904A JPH06294913A (en) 1993-02-15 1993-07-14 Method for removing coating of optical fiber and jig therefor

Publications (1)

Publication Number Publication Date
JPH06294913A true JPH06294913A (en) 1994-10-21

Family

ID=26338211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5173904A Pending JPH06294913A (en) 1993-02-15 1993-07-14 Method for removing coating of optical fiber and jig therefor

Country Status (1)

Country Link
JP (1) JPH06294913A (en)

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