JP2012252196A - Manufacturing method for optical fiber ribbon - Google Patents

Manufacturing method for optical fiber ribbon Download PDF

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JP2012252196A
JP2012252196A JP2011125286A JP2011125286A JP2012252196A JP 2012252196 A JP2012252196 A JP 2012252196A JP 2011125286 A JP2011125286 A JP 2011125286A JP 2011125286 A JP2011125286 A JP 2011125286A JP 2012252196 A JP2012252196 A JP 2012252196A
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optical fiber
resin
rotating body
manufacturing
ribbon
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JP5759795B2 (en
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Takeshi Osato
健 大里
Takashi Matsuzawa
隆志 松澤
Mizuki Isachi
瑞基 伊佐地
Yukiko Take
由紀子 武
Naoki Okada
直樹 岡田
Yusuke Yamada
裕介 山田
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Fujikura Ltd
Nippon Telegraph and Telephone Corp
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Fujikura Ltd
Nippon Telegraph and Telephone Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method for an optical fiber ribbon, capable of easily performing single core separation work without performing ribbon resin removal work after the single core separation.SOLUTION: A manufacturing method for an optical fiber ribbon 7, in which a plurality of optical fiber ribbons 2A to 2D are arranged in a line to be traveled, and a coupling portion 13' is formed by applying coupling resin 13 to only a space between the adjoining optical fiber ribbons 2 in a longitudinal direction of the optical fiber ribbon intermittently to couple together the optical fiber ribbons 2. In the present invention, the coupling resin 13 is supplied to a rotor 5 rotating in contact with traveling optical fiber ribbons 2 to intermittently attach the coupling resin 13 on a surface 5a of the rotor 5. The coupling resin 13 attached on the surface 5a of the rotor 5 is transferred to a space between the adjoining optical fiber ribbons 2 so that the coupling resin 13 is formed only in the space between the optical fiber ribbons 2.

Description

本発明は、光ファイバテープ心線の製造方法に関する。   The present invention relates to a method for manufacturing an optical fiber ribbon.

現在使用されている光ファイバテープ心線は、複数本の光ファイバ心線に対してテープ化樹脂をその長手方向に連続して当該光ファイバ心線全体を被覆するようにして製造されている。このため、テープ化樹脂で光ファイバ心線全体が被覆された光ファイバテープ心線では、中間分岐作業時に複数本ある中から特定の光ファイバ心線を取り出す場合、光ファイバ心線全体に被覆されたテープ化樹脂を除去する作業が必要となり、簡単に中間分岐することができない。   Currently used optical fiber ribbons are manufactured so that a plurality of optical fibers are continuously coated with a taped resin in the longitudinal direction so as to cover the entire optical fibers. For this reason, in the case of an optical fiber ribbon coated with the entire optical fiber core with taped resin, when a specific optical fiber core is taken out from a plurality of fibers during the intermediate branching operation, the entire optical fiber core is covered. Therefore, it is necessary to remove the taped resin, and the intermediate branch cannot be easily performed.

そこで、複数本の光ファイバ心線を間欠的にテープ化樹脂で被覆した、いわゆる間欠固定光ファイバテープ心線の開発が進められている。例えば、特許文献１や特許文献２に記載されるような製造方法で、間欠固定光ファイバテープ心線が製造されている。   Thus, development of a so-called intermittently fixed optical fiber ribbon in which a plurality of optical fibers are intermittently coated with a taped resin is being developed. For example, an intermittently fixed optical fiber ribbon is manufactured by a manufacturing method as described in Patent Document 1 or Patent Document 2.

特許文献１では、走行する複数本の光ファイバ心線に対して上下位置に配置した回転体の表面の一部にテープ化樹脂を含浸させたフェルトを取り付け、それら２つの回転体を光ファイバ心線に接触させることで、前記フェルトに含浸させたテープ化樹脂を光ファイバ心線間に塗布させている。   In Patent Document 1, a felt impregnated with a taped resin is attached to a part of the surface of a rotating body arranged in a vertical position with respect to a plurality of traveling optical fiber cores, and the two rotating bodies are attached to an optical fiber core. The taped resin impregnated in the felt is applied between the optical fiber cores by contacting the wires.

特許文献２では、走行する複数本の光ファイバ心線に対してディスペンサからテープ化樹脂を間欠的に供給した後、ダイスに形成したダイス孔に光ファイバ心線を通過させることでテープ化樹脂を光ファイバ心線の周上全体に一定長さにわたって塗布させている。   In Patent Document 2, taped resin is intermittently supplied from a dispenser to a plurality of traveling optical fiber cores, and then the optical fiber core wire is passed through a die hole formed in a die. It is applied over a certain length over the entire circumference of the optical fiber core.

特開２００１−２６４６０３号公報JP 2001-264603 A 特開２００１−２６４６０４号公報JP 2001-264604 A

しかしながら、特許文献１及び２に記載の製造方法で製造された光ファイバテープ心線では、光ファイバ心線の周上全体がテープ化樹脂で被覆されているため、単心分離する際にテープ化樹脂を剥がすことが困難となる。つまり、隣り合う光ファイバ心線間だけでなく該光ファイバ心線の周囲全体にテープ化樹脂が被覆されているため、簡単にはテープ化樹脂を取り除くことができない。テープ化樹脂の取り残しが多いと、単心分離後に光ファイバ心線を融着接続する際やコネクタに挿通させる際に、接続作業性が悪くなる。   However, in the optical fiber ribbon manufactured by the manufacturing method described in Patent Documents 1 and 2, the entire circumference of the optical fiber core is covered with a taped resin. It becomes difficult to remove the resin. That is, since the taped resin is coated not only between adjacent optical fiber cores but also the entire periphery of the optical fiber core wires, the taped resin cannot be easily removed. If a large amount of tape-resin is left behind, the connection workability deteriorates when the optical fiber core wire is fusion-bonded after single-fiber separation or inserted into the connector.

そこで、本発明は、単心分離作業を容易に行うことができ且つ単心分離後にテープ化樹脂除去作業を行わなくても良い光ファイバテープ心線の製造方法を提供することを目的とする。   Accordingly, an object of the present invention is to provide a method of manufacturing an optical fiber ribbon that can easily perform a single-fiber separation operation and does not need to perform a taped resin removal operation after the single-fiber separation.

請求項１に記載の発明は、複数本の光ファイバ心線を一列に配列させて走行させ、隣り合う光ファイバ心線間にのみ連結用樹脂をテープ心線長手方向で間欠的に塗布して連結部を形成することで光ファイバ心線同士を連結させた光ファイバテープ心線の製造方法であって、走行する光ファイバ心線に接して回転する回転体に、連結用樹脂を供給して該回転体の表面に前記連結用樹脂を間欠的に付着させ、その回転体の表面に付着させた連結用樹脂を、隣り合う光ファイバ心線間に転写させて光ファイバ心線間にのみ連結部を形成することを特徴としている。   According to the first aspect of the present invention, a plurality of optical fiber cores are arranged in a row and run, and a connecting resin is intermittently applied in the longitudinal direction of the tape core only between adjacent optical fiber cores. An optical fiber ribbon manufacturing method in which optical fiber cores are connected to each other by forming a connecting portion, and supplying a connecting resin to a rotating body that rotates in contact with the traveling optical fiber core The connecting resin is intermittently attached to the surface of the rotating body, and the connecting resin attached to the surface of the rotating body is transferred between adjacent optical fiber cores to be connected only between the optical fiber core wires. It is characterized by forming a part.

請求項２に記載の発明は、請求項１に記載の光ファイバテープ心線の製造方法であって、前記回転体の表面に連結用樹脂を回転体内部から表面側に染み出させることで、該回転体の表面に前記連結用樹脂を付着させることを特徴としている。   Invention of Claim 2 is a manufacturing method of the optical fiber ribbon of Claim 1, Comprising: By making the resin for connection ooze from the inside of a rotating body to the surface side on the surface of the said rotating body, The connecting resin is adhered to the surface of the rotating body.

請求項３に記載の発明は、請求項１に記載の光ファイバテープ心線の製造方法であって、隣り合う光ファイバ心線間に回転体の一部を侵入させ、その回転体の一部に供給された連結用樹脂を、前記光ファイバ心線間に転写させることを特徴としている。   Invention of Claim 3 is a manufacturing method of the optical fiber ribbon of Claim 1, Comprising: A part of rotary body penetrate | invades between adjacent optical fiber core wires, A part of the rotary body The connecting resin supplied to the optical fiber is transferred between the optical fiber core wires.

本発明の光ファイバテープ心線の製造方法によれば、走行する光ファイバ心線に接して回転体を回転させ、その回転体の表面に間欠的に付着させた連結用樹脂を、隣り合う光ファイバ心線間に転写させることで、光ファイバ心線間にのみ連結部を形成した光ファイバテープ心線を製造することができる。本発明方法で製造された光ファイバテープ心線では、光ファイバ心線の周囲全体にテープ化樹脂が被覆されているのではなく、隣り合う光ファイバ心線間にのみ連結部が設けられるため、単心分離し易く、しかも単心分離後の樹脂除去作業が不要となる。   According to the manufacturing method of the optical fiber ribbon of the present invention, the rotating resin is rotated in contact with the traveling optical fiber, and the connecting resin that is intermittently adhered to the surface of the rotating body is connected to the adjacent light. By transferring between the fiber cores, it is possible to manufacture an optical fiber tape core having a connecting portion formed only between the optical fiber cores. In the optical fiber ribbon manufactured by the method of the present invention, since the entire periphery of the optical fiber core is not coated with the taped resin, the connecting portion is provided only between the adjacent optical fiber cores, Single-core separation is easy, and resin removal after single-core separation is not required.

図１は光ファイバテープ心線を製造するための製造装置全体を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing an entire manufacturing apparatus for manufacturing an optical fiber ribbon. 図２は走行する光ファイバ心線に回転体を接触させて隣り合う光ファイバ心線間に回転体の表面に付着させた連結用樹脂を転写させる転写工程図である。FIG. 2 is a transfer process diagram in which the rotating resin is brought into contact with the traveling optical fiber and the connecting resin adhered to the surface of the rotating body is transferred between the adjacent optical fibers. 図３は図２に示した回転体を使用して製造された光ファイバテープ心線を示し、（Ａ）はその平面図、（Ｂ）は（Ａ）のＡ−Ａ線断面図である。FIG. 3 shows an optical fiber ribbon manufactured using the rotating body shown in FIG. 2, (A) is a plan view thereof, and (B) is a sectional view taken along line AA of (A). 図４は光ファイバ心線に転写用樹脂を転写する別形態を示す転写工程図である。FIG. 4 is a transfer process diagram showing another form of transferring the transfer resin onto the optical fiber core wire. 図５は光ファイバ心線に転写用樹脂を転写する更に別形態を示す転写工程図であり、（Ａ）はその平面図、（Ｂ）はその側面図である。FIGS. 5A and 5B are transfer process diagrams showing still another embodiment for transferring the transfer resin to the optical fiber core wire, where FIG. 5A is a plan view and FIG. 5B is a side view thereof. 図６は図５で使用する回転体の表面に連結用樹脂を供給する一例を示した断面図である。FIG. 6 is a cross-sectional view showing an example of supplying the coupling resin to the surface of the rotating body used in FIG. 図７は図５に示した回転体を使用して製造された光ファイバテープ心線を示し、（Ａ）はその平面図、（Ｂ）は（Ａ）のＡ−Ａ線断面図である。FIG. 7 shows an optical fiber ribbon manufactured using the rotating body shown in FIG. 5, (A) is a plan view thereof, and (B) is a sectional view taken along line AA of (A).

以下、本発明を適用した具体的な実施形態について図面を参照しながら詳細に説明する。   Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

先ず、光ファイバテープ心線を製造する製造装置について図１を参照して説明する。図１に示す製造装置１は、複数本の光ファイバ心線２（２Ａ〜２Ｄ）を送り出す送出手段である送出ドラム３と、各光ファイバ心線２Ａ〜２Ｄを一列に配列させるガイドローラ４と、走行する光ファイバ心線２に接して回転することで連結用樹脂を隣り合う光ファイバ心線間に転写させる回転体５と、転写された連結用樹脂を硬化させる紫外線ランプ６と、硬化して製造された光ファイバテープ心線７を巻き取る巻取ドラム８とを備えている。   First, a manufacturing apparatus for manufacturing an optical fiber ribbon will be described with reference to FIG. The manufacturing apparatus 1 shown in FIG. 1 includes a delivery drum 3 which is a delivery means for delivering a plurality of optical fiber cores 2 (2A to 2D), and a guide roller 4 for arranging the optical fiber cores 2A to 2D in a row. A rotating body 5 for transferring the connecting resin between adjacent optical fiber core wires by rotating in contact with the traveling optical fiber core wire 2, and an ultraviolet lamp 6 for hardening the transferred connecting resin. And a winding drum 8 for winding the optical fiber ribbon 7 manufactured in this manner.

前記製造装置では、図１に向かって最も右側に配置される送出ドラム３を光ファイバ心線２のファイバ送出し側とし、最も左側に配置される巻取ドラム８をファイバ巻取り側としたときに、光ファイバ心線２がファイバ送出し側からファイバ巻取り側へ向かって矢印Ｙで示す向きに走行する。この矢印Ｙの向きをファイバ走行方向とし、ファイバ送出し側に配置される装置構成部品（例えば送出ドラム３）に対してファイバ巻取り側に配置される装置構成部品（巻取ドラム８）を前方にある装置構成部品と定義する。前記光ファイバ心線２の走行経路には、送出ドラム３から巻取ドラム８までの間にファイバ送出し側からファイバ巻取り側へ向かって順次、ガイドローラ４、回転体５、紫外線ランプ６、ダンサー９が配置されている。   In the manufacturing apparatus, when the delivery drum 3 arranged on the rightmost side in FIG. 1 is the fiber delivery side of the optical fiber core 2, and the winding drum 8 arranged on the leftmost side is the fiber winding side In addition, the optical fiber core 2 travels in the direction indicated by the arrow Y from the fiber delivery side to the fiber winding side. The direction of the arrow Y is the fiber traveling direction, and the device component (winding drum 8) disposed on the fiber winding side is forward of the device component (for example, the feeding drum 3) disposed on the fiber feeding side. Is defined as a device component. The traveling path of the optical fiber core 2 includes a guide roller 4, a rotating body 5, an ultraviolet lamp 6, in order from the fiber delivery side to the fiber take-up side between the delivery drum 3 and the take-up drum 8. A dancer 9 is arranged.

送出ドラム３は、図１に示すように、光ファイバ心線２（２Ａ〜２Ｄ）をドラム周面に巻回させている。かかる送出ドラム３は、光ファイバ心線２の数に応じて配置されている。本実施形態では、４本の光ファイバ心線２を一列に配列した光ファイバテープ心線を製造することから、４つの送出ドラム３を配置している。   As shown in FIG. 1, the delivery drum 3 has an optical fiber core wire 2 (2A to 2D) wound around the drum circumferential surface. The delivery drum 3 is arranged according to the number of optical fiber cores 2. In this embodiment, since the optical fiber tape core wire in which the four optical fiber core wires 2 are arranged in a row is manufactured, four delivery drums 3 are arranged.

送出ドラム３の前方には、図１に示すように、４本の光ファイバ心線２（２Ａ〜２Ｄ）を一列に配列させて走行を案内するガイドローラ４が複数配置されている。これらガイドローラ４は、４本の光ファイバ心線２を隙間無く配列させることも、各光ファイバ心線２間に所定の隙間を持たせて配列させることもできるようになっている。図２では、各光ファイバ心線２Ａ〜２Ｄには、所定の隙間を持たせるようにしている。   In front of the delivery drum 3, as shown in FIG. 1, a plurality of guide rollers 4 are arranged to guide the traveling by arranging four optical fiber core wires 2 (2A to 2D) in a line. These guide rollers 4 can be arranged such that the four optical fiber cores 2 are arranged without gaps, or can be arranged with a predetermined gap between the optical fiber core wires 2. In FIG. 2, each optical fiber core wire 2 </ b> A to 2 </ b> D has a predetermined gap.

前記ガイドローラ４の前方には、図１に示すように、回転体５が配置されている。回転体５は、図２に示すように、内部を空洞とした樹脂供給部１０を有した円柱形状をなしている。そして、この回転体５には、軸芯に回転軸１１が取り付けられている。前記回転体５は、前記回転軸１１を中心として回転し、光ファイバ心線２の走行スピードに応じて回転数が制御可能とされている。   As shown in FIG. 1, a rotating body 5 is disposed in front of the guide roller 4. As shown in FIG. 2, the rotating body 5 has a cylindrical shape having a resin supply unit 10 having a hollow inside. And in this rotary body 5, the rotating shaft 11 is attached to the axial center. The rotating body 5 rotates about the rotating shaft 11, and the number of rotations can be controlled according to the traveling speed of the optical fiber core 2.

また、前記回転体５には、一方の側面に取り付けられた回転軸１１の中心に形成された樹脂供給孔（図示は省略する）から前記樹脂供給部１０内へ連結用樹脂が供給されるようになっている。また、この回転体５の円筒形状をなす外周面５ａには、前記樹脂供給部１０内に供給された連結用樹脂をその外周面５ａ側へと押し出すための開口孔１２が形成されている。   The rotating body 5 is supplied with a connecting resin from the resin supply hole (not shown) formed in the center of the rotating shaft 11 attached to one side surface into the resin supply unit 10. It has become. In addition, an opening 12 is formed in the outer peripheral surface 5a having a cylindrical shape of the rotating body 5 for extruding the connecting resin supplied into the resin supply unit 10 toward the outer peripheral surface 5a.

前記開口孔１２には、樹脂供給部１０内に供給された連結用樹脂１３が押し出される。この開口孔１２から染み出た連結用樹脂１３は、回転体５の外周面５ａから突出し、当該回転体５が回転して光ファイバ心線２に接することで該光ファイバ心線２間に転写される。開口孔１２は、製造する光ファイバテープ心線７に応じて間欠的に設けられた連結部のパターンに応じて形成されている。   The connecting resin 13 supplied into the resin supply unit 10 is pushed out into the opening hole 12. The connecting resin 13 oozing out from the opening hole 12 protrudes from the outer peripheral surface 5 a of the rotating body 5, and is transferred between the optical fiber cores 2 when the rotating body 5 rotates and contacts the optical fiber cores 2. Is done. The opening hole 12 is formed according to the pattern of the connection part provided intermittently according to the optical fiber tape core wire 7 to manufacture.

図２では、最も外側（第１番目）の光ファイバ心線２Ａとその隣（第２番目）の光ファイバ心線２Ｂ間には、一定ピッチＰでテープ心線長手方向に連結用樹脂１３が繰り返し形成される。また、第２番目の光ファイバ心線２Ｂとその隣り（第３番目）の光ファイバ心線２Ｃ間には、第１番目と第２番目の光ファイバ心線２Ａ、２Ｂ間に転写された連結用樹脂１３に対してテープ幅方向の同一位置ではなくテープ心線長手方向でファイバ送出し側へずれて連結用樹脂１３が転写されている。また、第３番目の光ファイバ心線２Ｃとその隣り（第４番目）の光ファイバ心線２Ｄ間には、第２番目と第３番目の光ファイバ心線２Ｂ、２Ｃ間に転写された連結用樹脂１３に対してテープ幅方向の同一位置ではなくテープ心線長手方向で更にファイバ送出し側へずれて連結用樹脂１３が転写されている。   In FIG. 2, the connecting resin 13 is arranged at a constant pitch P in the longitudinal direction of the tape core wire between the outermost (first) optical fiber core 2A and the adjacent (second) optical fiber core 2B. It is formed repeatedly. Further, the connection between the first and second optical fiber cores 2A and 2B is transferred between the second optical fiber core 2B and the adjacent (third) optical fiber core 2C. The connecting resin 13 is transferred to the fiber delivery side in the longitudinal direction of the tape core, not to the same position in the tape width direction with respect to the resin 13 for transfer. Further, the connection between the third and second optical fiber cores 2B and 2C is transferred between the third optical fiber core 2C and the adjacent (fourth) optical fiber core 2D. The connecting resin 13 is transferred to the fiber feeding side by shifting further toward the fiber feeding side in the longitudinal direction of the tape core wire rather than the same position in the tape width direction with respect to the resin 13 for use.

紫外線ランプ６は、図１に示すように、前記回転体５の前方に設けられている。本実施形態では、紫外線ランプ６を直列に２つ連続配置させている。紫外線ランプ６は、光ファイバ心線２の走行スピードに応じて当該光ファイバ心線２間に転写された連結用樹脂１３を硬化させべく照度強さが調整可能とされている。   As shown in FIG. 1, the ultraviolet lamp 6 is provided in front of the rotating body 5. In this embodiment, two ultraviolet lamps 6 are continuously arranged in series. The ultraviolet lamp 6 can be adjusted in intensity to cure the connecting resin 13 transferred between the optical fiber cores 2 according to the traveling speed of the optical fiber cores 2.

前記紫外線ランプ６のファイバ送出し側には、図１に示すように、連結用樹脂１３が硬化して連結部とされた光ファイバテープ心線７の巻き取り張力を調整するためのダンサー９が設けられている。ダンサー９は、複数個のローラ１４から構成されており、走行する光ファイバテープ心線７に張力を付与する。   As shown in FIG. 1, a dancer 9 for adjusting the winding tension of the optical fiber ribbon 7 that is cured by the coupling resin 13 to form a coupling portion is provided on the fiber delivery side of the ultraviolet lamp 6. Is provided. The dancer 9 is composed of a plurality of rollers 14 and applies tension to the traveling optical fiber ribbon 7.

巻取ドラム８は、光ファイバテープ心線７を最終的に巻き取るようになっている。この巻取ドラム８には、光ファイバテープ心線７が弛みなくその周面に巻き付けられる。   The winding drum 8 finally winds the optical fiber ribbon 7. The optical fiber ribbon 7 is wound around the winding drum 8 without slack.

次に、本実施形態の光ファイバテープ心線の製造方法について説明する。先ず、送出ドラム３から各光ファイバ心線２（２Ａ〜２Ｄ）を送り出す。送り出された光ファイバ心線２は、ガイドローラ４によって一列に配列される。各光ファイバ心線２Ａ〜２Ｄは、それぞれ所定の間隔を空けて横一例に配列されて、ガイドローラ４の前方に配置された回転体５へ送られる。   Next, the manufacturing method of the optical fiber ribbon of this embodiment is demonstrated. First, each optical fiber core wire 2 (2A to 2D) is sent out from the delivery drum 3. The fed optical fiber core wires 2 are arranged in a row by a guide roller 4. Each of the optical fiber cores 2 </ b> A to 2 </ b> D is arranged in a horizontal example with a predetermined interval, and is sent to the rotating body 5 disposed in front of the guide roller 4.

回転体５は、回転軸１１を中心として回転し、走行する光ファイバ心線２に接する。回転体５の表面５ａには、回転体内部の樹脂供給部１０内に供給された連結用樹脂１３が前記開口１２からその表面側に染み出た状態にある。そのため、回転体５が光ファイバ心線２に接触しながら回転することで、前記連結用樹脂１３が、隣り合う光ファイバ心線間に転写されることになる。連結用樹脂１３が転写された状態を、図２に示す。   The rotating body 5 rotates around the rotating shaft 11 and is in contact with the traveling optical fiber core wire 2. On the surface 5 a of the rotator 5, the connecting resin 13 supplied into the resin supply unit 10 inside the rotator oozes out from the opening 12 to the surface side. Therefore, when the rotating body 5 rotates while contacting the optical fiber core wire 2, the connecting resin 13 is transferred between the adjacent optical fiber core wires. FIG. 2 shows a state where the coupling resin 13 has been transferred.

次に、光ファイバ心線２に転写された連結用樹脂１３に、紫外線ランプ６にて紫外線を照射する。すると、紫外線を受けた連結用樹脂１３は、紫外線硬化樹脂からなるため、紫外線を受けて硬化する。   Next, the connecting resin 13 transferred to the optical fiber core 2 is irradiated with ultraviolet rays by the ultraviolet lamp 6. Then, since the connecting resin 13 that has received ultraviolet rays is made of an ultraviolet curable resin, it is cured by receiving ultraviolet rays.

連結用樹脂１３が硬化して得られた光ファイバテープ心線７は、ダンサー９にて巻き取り張力が調整されて巻取ドラム８に巻き取られる。巻取ドラム８に巻き取られることで、光ファイバテープ心線７を製造する製造工程が終了する。製造された光ファイバテープ心線７は、図３に示すように、隣り合う光ファイバ心線２間にのみ連結用樹脂１３がテープ心線長手方向で間欠的に塗布され硬化されることで連結部１３’を形成する。この連結部１３’の配列パターンは、図２の連結用樹脂１３の配列パターンと同じである。   The optical fiber ribbon 7 obtained by curing the connecting resin 13 is wound around the winding drum 8 with the winding tension adjusted by the dancer 9. By being wound around the winding drum 8, the manufacturing process for manufacturing the optical fiber ribbon 7 is completed. As shown in FIG. 3, the manufactured optical fiber ribbon 7 is connected by intermittently applying and curing the connecting resin 13 between the adjacent optical fibers 2 in the longitudinal direction of the tape. Form part 13 '. The arrangement pattern of the connecting portions 13 'is the same as the arrangement pattern of the connecting resin 13 in FIG.

製造された光ファイバテープ心線７は、例えば図３（Ａ）のＡ−Ａ線断面では、第１番目の光ファイバ心線２Ａと第２番目の光ファイバ心線２Ｂ間にのみ連結部１３’が形成される。連結部１３’は、図３（Ｂ）に示すように、これら第１番目と第２番目の光ファイバ心線２Ａ、２Ｂを連結するようにテープ心線の表面側に連結用樹脂１３が載せられて固まることで両者を連結している。逆の見方をすると、連結用樹脂１３が２本の光ファイバ心線２Ａ、２Ｂ間の隙間の中まで入り込んでおらず、その表面側に転写されて硬化されることで連結部１３’を形成している。このＡ−Ａ線断面では、第２番目と第３番目及び第３番目と第４番目の光ファイバ心線２Ｂ、２Ｃ、２Ｄ間は、連結部１３’で連結されていない。   For example, in the cross section taken along the line AA in FIG. 3A, the manufactured optical fiber ribbon 7 is connected only between the first optical fiber 2A and the second optical fiber 2B. 'Is formed. As shown in FIG. 3B, the connecting portion 13 ′ has a connecting resin 13 placed on the surface side of the tape core so as to connect the first and second optical fiber cores 2A and 2B. Both are connected by being hardened. In other words, the connecting resin 13 does not enter the gap between the two optical fiber cores 2A and 2B, and is transferred to the surface side and cured to form the connecting portion 13 ′. is doing. In the AA line cross section, the second and third optical fibers and the third and fourth optical fiber core wires 2B, 2C, and 2D are not connected by the connecting portion 13 '.

本実施形態によれば、走行する光ファイバ心線２に接して回転体５を回転させ、その回転体５の表面５ａに間欠的に付着させた連結用樹脂１３を、隣り合う光ファイバ心線２間に転写させることで、光ファイバ心線２間にのみ連結部１３’を形成した光ファイバテープ心線７を製造することができる。   According to this embodiment, the rotating resin 5 is rotated in contact with the traveling optical fiber core 2, and the connecting resin 13 intermittently attached to the surface 5 a of the rotating body 5 is connected to the adjacent optical fiber cable. By transferring between the two, the optical fiber tape core 7 in which the connecting portion 13 'is formed only between the optical fiber cores 2 can be manufactured.

本発明方法で製造された光ファイバテープ心線７は、光ファイバ心線２の周囲全体にテープ化樹脂が被覆されているのではなく、隣り合う光ファイバ心線２間にのみ連結部１３’が設けられるため、単心分離し易く、しかも単心分離後の樹脂除去作業が不要となる。また、本実施形態によれば、回転体７の任意の位置に連結用樹脂１３を付着させることで、任意の連結部１３’によるパターンを光ファイバ心線２間に形成することができる。   In the optical fiber ribbon 7 manufactured by the method of the present invention, the entire periphery of the optical fiber 2 is not coated with the taped resin, but only between the adjacent optical fibers 2 in the connecting portion 13 ′. Therefore, it is easy to separate the single core, and the resin removal work after the single core separation is not required. In addition, according to the present embodiment, by attaching the connecting resin 13 to an arbitrary position of the rotating body 7, a pattern by the arbitrary connecting portion 13 ′ can be formed between the optical fiber core wires 2.

また、本実施形態によれば、連結用樹脂１３を隣り合う光ファイバ心線２間の表面に転写させるため、光ファイバ心線２間に隙間を空けなくてもよい。隣り合う光ファイバ心線２間に隙間を空けない場合は、従来から使用されている光ファイバ心線間が接した光ファイバテープ心線構造と同様に、他の光ファイバテープ心線に対してそれぞれの光ファイバ心線２の配列間隔が同じになることから一括融着接続することができる。   Further, according to the present embodiment, since the coupling resin 13 is transferred to the surface between the adjacent optical fiber cores 2, it is not necessary to leave a gap between the optical fiber core wires 2. When there is no gap between the adjacent optical fiber cores 2, as with the optical fiber tape core structure in which the optical fiber core wires used in the past are in contact with each other, Since the arrangement intervals of the optical fiber cores 2 are the same, it is possible to perform fusion bonding connection.

また、本実施形態によれば、光ファイバ心線２をダイス孔にそれぞれ通して連結用樹脂１３を塗布する必要が無いため、光ファイバ心線２を掛け替える時など、製造工程上で段取り作業を簡略化することができる。また、光ファイバ心線２の周囲全体に連結用樹脂１３を塗布せずに、隣り合う光ファイバ心線２間にのみ連結用樹脂１３を転写するので、樹脂消費量を減少させることができる。   Moreover, according to this embodiment, since it is not necessary to apply the connecting resin 13 by passing the optical fiber core wires 2 through the die holes, setup work can be performed in the manufacturing process such as when the optical fiber core wires 2 are replaced. Can be simplified. In addition, since the connecting resin 13 is transferred only between the adjacent optical fiber cores 2 without applying the connecting resin 13 around the entire periphery of the optical fiber core wire 2, the amount of resin consumption can be reduced.

［他の実施形態］
図４では、先に説明した図２の回転体５に形成した開口１２をその表面５ａに形成せず、該回転体５に接近して設けた転写ローラ１５から連結用樹脂１３をその表面５ａに転写するようにしてもよい。転写ローラ１５は、図２に示した回転体５と同じ構造とされており、一方の回転軸１６の中心に形成された樹脂供給孔からローラ本体内に形成された樹脂供給部に連結用樹脂１３が供給された後、そのローラ表面に形成された開口から連結用樹脂１３が染み出て押し出されるようになっている。 [Other Embodiments]
In FIG. 4, the opening 12 formed in the rotating body 5 of FIG. 2 described above is not formed in the surface 5a, but the connecting resin 13 is transferred from the transfer roller 15 provided close to the rotating body 5 to the surface 5a. You may make it transfer to. The transfer roller 15 has the same structure as that of the rotating body 5 shown in FIG. 2 and is connected to a resin supply portion formed in the roller body from a resin supply hole formed in the center of one rotation shaft 16. After 13 is supplied, the connecting resin 13 oozes out from the opening formed on the roller surface and is pushed out.

このように、一旦転写ローラ１５から連結用樹脂１３を回転体５へ転写させて該回転体５を回転させて隣り合う光ファイバ心線２間に連結用樹脂１３を転写するようにしても先の実施形態と同様の効果を得ることができる。   As described above, the connecting resin 13 is once transferred from the transfer roller 15 to the rotating body 5, and the rotating body 5 is rotated to transfer the connecting resin 13 between the adjacent optical fiber cores 2. The same effect as that of the embodiment can be obtained.

図５では、図２で示した回転体５とは異なり、隣り合う光ファイバ心線２間の隙間に侵入する円盤部（回転体の一部）１８を、回転体１７の本体部表面１７ａに設けている。この円盤部１８は、回転体１７の本体部の外径よりも大きな外径とされ、該回転体１７の本体部表面１７ａが光ファイバ心線２に接触した時に、隣り合う光ファイバ心線２間の中心位置近傍に達する位置まで入り込むようになっている。   In FIG. 5, unlike the rotating body 5 shown in FIG. 2, a disk portion (a part of the rotating body) 18 that enters the gap between the adjacent optical fiber core wires 2 is formed on the main body surface 17 a of the rotating body 17. Provided. The disk portion 18 has an outer diameter larger than the outer diameter of the main body portion of the rotating body 17. When the main body surface 17 a of the rotating body 17 comes into contact with the optical fiber core wire 2, the adjacent optical fiber core wires 2. It reaches to the position that reaches the vicinity of the center position.

円盤部１８には、連結用樹脂１３を隣り合う光ファイバ心線２間の隙間に転写するための樹脂保持部１９が形成されている。樹脂保持部１９は、円盤部１８の円周の一部に若干突出して形成されており、その突出する部位に連結用樹脂１３を保持する。各円盤部１８に形成される樹脂保持部１９は、製造する光ファイバテープ心線７に形成する連結部１３’の位置に対応するようにそれぞれ回転方向でその位置をずらしている。   The disk portion 18 is formed with a resin holding portion 19 for transferring the coupling resin 13 to the gap between the adjacent optical fiber core wires 2. The resin holding part 19 is formed so as to slightly protrude from a part of the circumference of the disk part 18, and holds the connecting resin 13 at the protruding part. The positions of the resin holding portions 19 formed in the respective disk portions 18 are shifted in the rotational direction so as to correspond to the positions of the connecting portions 13 ′ formed in the optical fiber ribbon 7 to be manufactured.

前記円盤部１８の樹脂保持部１９には、図６に示す樹脂供給装置２０に満たされた連結用樹脂１３が保持される。樹脂供給装置２０には、各円盤部１８に形成された樹脂保持部１９を、装置本体２１に形成したスリット２２内に侵入させて当該装置本体２１内に満たした連結用樹脂１３を掻き取るようにして保持する。   The resin holding part 19 of the disk part 18 holds the connecting resin 13 filled in the resin supply device 20 shown in FIG. In the resin supply device 20, the resin holding portion 19 formed in each disk portion 18 is allowed to enter the slit 22 formed in the device main body 21 so that the connecting resin 13 filled in the device main body 21 is scraped off. And hold.

図５及び図６に示す構造の回転体１７では、走行する光ファイバ心線２に対して回転体１７が接して回転した時に、各円盤部１８に形成された樹脂保持部１９が各隣り合う光ファイバ心線２間の隙間Ｓに侵入し、その樹脂保持部１９に保持した連結用樹脂１３を光ファイバ心線２間にのみ転写させる。この連結用樹脂１３の配列パターンは、図２の連結用樹脂１３の配列パターンと同じである。   In the rotating body 17 having the structure shown in FIGS. 5 and 6, when the rotating body 17 rotates in contact with the traveling optical fiber 2, the resin holding portions 19 formed in the respective disk portions 18 are adjacent to each other. It penetrates into the gap S between the optical fiber cores 2, and the connecting resin 13 held in the resin holding part 19 is transferred only between the optical fiber cores 2. The arrangement pattern of the connecting resin 13 is the same as the arrangement pattern of the connecting resin 13 in FIG.

図５及び図６の回転体１７を使用して製造された光ファイバテープ心線７は、例えば図７（Ａ）のＢ−Ｂ線断面では、第１番目の光ファイバ心線２Ａと第２番目の光ファイバ心線２Ｂ間のみに連結部１３’が形成される。連結部１３’は、これら第１番目と第２番目の光ファイバ心線２Ａ、２Ｂを連結するように両光ファイバ心線２Ａ、２Ｂ間の隙間Ｓの中に入り込むようにして固まることで両者を連結している。このＢ−Ｂ線断面では、第２番目と第３番目及び第３番目と第４番目の光ファイバ心線２Ｂ、２Ｃ、２Ｄ間は、連結部１３’で連結されていない。   The optical fiber ribbon 7 manufactured using the rotating body 17 of FIGS. 5 and 6 is, for example, in the cross section taken along the line BB of FIG. A connecting portion 13 ′ is formed only between the second optical fiber cores 2B. The connecting portion 13 'is fixed by entering the gap S between the optical fiber cores 2A and 2B so as to connect the first and second optical fiber cores 2A and 2B. Are connected. In the cross section taken along line BB, the second and third optical fibers and the third and fourth optical fiber cores 2B, 2C, and 2D are not connected by the connecting portion 13 '.

図５及び図６に示す構造の回転体１７を使用して光ファイバテープ心線７を製造すれば、先の図２及び図４の回転体５、１５を使用した場合と同様、隣り合う光ファイバ心線２間にのみ連結部１３’が設けられるため、単心分離し易く、しかも単心分離後の樹脂除去作業が不要となる。   If the optical fiber ribbon 7 is manufactured using the rotator 17 having the structure shown in FIGS. 5 and 6, adjacent light beams are used as in the case where the rotators 5 and 15 of FIGS. 2 and 4 are used. Since the connecting portion 13 ′ is provided only between the fiber core wires 2, the single core is easily separated, and the resin removing operation after the single core separation is not required.

本発明は、複数本の光ファイバ心線を連結用樹脂で接合一体化して一列に配列してなる光ファイバテープ心線に利用することができる。   The present invention can be used for an optical fiber ribbon in which a plurality of optical fibers are joined and integrated with a connecting resin and arranged in a line.

１…製造装置
２（２Ａ〜２Ｄ）…光ファイバ心線
５、１７…回転体
７…光ファイバテープ心線
１０…樹脂供給部
１１、１６…回転軸
１２…開口孔
１３…連結用樹脂
１３’…連結部
１５…転写ローラ
１８…円盤部
１９…樹脂保持部
２０…樹脂供給装置 DESCRIPTION OF SYMBOLS 1 ... Manufacturing apparatus 2 (2A-2D) ... Optical fiber core wire 5, 17 ... Rotating body 7 ... Optical fiber tape core wire 10 ... Resin supply part 11, 16 ... Rotating shaft 12 ... Opening hole 13 ... Resin 13 for connection 13 ' ... Connecting part 15 ... Transfer roller 18 ... Disk part 19 ... Resin holding part 20 ... Resin feeder

Claims (3)

複数本の光ファイバ心線を一列に配列させて走行させ、隣り合う光ファイバ心線間にのみ連結用樹脂をテープ心線長手方向で間欠的に塗布して連結部を形成することで光ファイバ心線同士を連結させた光ファイバテープ心線の製造方法であって、
走行する光ファイバ心線に接して回転する回転体に、連結用樹脂を供給して該回転体の表面に該連結用樹脂を間欠的に付着させ、その回転体の表面に付着させた連結用樹脂を、隣り合う光ファイバ心線間に転写させて前記光ファイバ心線間にのみ連結部を形成する
ことを特徴とする光ファイバテープ心線の製造方法。 An optical fiber is formed by running a plurality of optical fiber cores arranged in a row, and intermittently applying a connecting resin between adjacent optical fiber core wires in the longitudinal direction of the tape core wire to form a connecting portion. An optical fiber ribbon manufacturing method in which cores are connected to each other,
A connecting resin is supplied to a rotating body rotating in contact with a traveling optical fiber core wire, and the connecting resin is intermittently attached to the surface of the rotating body, and the connecting resin is attached to the surface of the rotating body. Resin is transcribe | transferred between adjacent optical fiber core wires, and a connection part is formed only between the said optical fiber core wires. The manufacturing method of the optical fiber tape core wire characterized by the above-mentioned. 請求項１に記載の光ファイバテープ心線の製造方法であって、
前記回転体の表面に連結用樹脂を回転体内部から表面側に染み出させることで、該回転体の表面に前記連結用樹脂を付着させる
ことを特徴とする光ファイバテープ心線の製造方法。 It is a manufacturing method of the optical fiber tape cable core according to claim 1,
A method for producing an optical fiber ribbon, wherein the connecting resin is oozed out from the inside of the rotating body to the surface side of the rotating body so that the connecting resin adheres to the surface of the rotating body. 請求項１に記載の光ファイバテープ心線の製造方法であって、
隣り合う光ファイバ心線間に回転体の一部を侵入させ、その回転体の一部に供給された連結用樹脂を、前記光ファイバ心線間に転写させる
ことを特徴とする光ファイバテープ心線の製造方法。 It is a manufacturing method of the optical fiber tape cable core according to claim 1,
An optical fiber tape core characterized in that a part of a rotating body enters between adjacent optical fiber cores, and the connecting resin supplied to the part of the rotating body is transferred between the optical fiber cores. Wire manufacturing method.
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