JPH0719709U - External coating removal tool for multi-core optical fiber - Google Patents
External coating removal tool for multi-core optical fiberInfo
- Publication number
- JPH0719709U JPH0719709U JP1441094U JP1441094U JPH0719709U JP H0719709 U JPH0719709 U JP H0719709U JP 1441094 U JP1441094 U JP 1441094U JP 1441094 U JP1441094 U JP 1441094U JP H0719709 U JPH0719709 U JP H0719709U
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- core
- coating layer
- outer coating
- core optical
- 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
Links
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Abstract
(57)【要約】
【目的】 多心光ファイバ心線の外部被覆層を安全かつ
確実に除去し、内部心線を除去する外部被覆除去工具を
提供する。
【構成】 光ファイバ上に個別被覆層を有する複数本の
内部心線を一列に並行に配列し、その上に共通の外部被
覆層を具えた多心光ファイバ心線の外部被覆層のみを除
去する工具であって、枢軸23により開閉可能とされた上
下部アーム 22a，22bより成り、上部アーム 22aには多
心光ファイバ心線の幅より広い幅の刃物21を配設すると
ともに、該刃物21によって切開かれる外部被覆層の上部
被覆を排出する開口25を設け、下部アーム 22bには多心
光ファイバ心線の幅方向のずれを防止するガイド部26を
設けた多心光ファイバ心線の外部被覆除去工具。
(57) [Summary] [Object] To provide an outer coating removing tool for safely and reliably removing the outer coating layer of a multi-core optical fiber and removing the inner core. [Structure] A plurality of inner core wires having individual coating layers are arranged in parallel on an optical fiber in a row, and a common outer covering layer is provided on the inner core wires to remove only the outer coating layer of the multi-core optical fiber A tool to be used, which comprises upper and lower arms 22a and 22b that can be opened and closed by a pivot 23, and in which the upper arm 22a is provided with a blade 21 having a width wider than the width of the multi-core optical fiber, An opening 25 for discharging the upper coating of the outer coating layer that is cut open by 21 is provided, and a guide portion 26 for preventing a shift in the width direction of the multi-core optical fiber is provided in the lower arm 22b. External coating removal tool.
Description
【０００１】[0001]
本考案は光ファイバケーブルの接続工事、測定あるいは端末形成等に適応する ための特に多心光ファイバ心線の外部被覆除去工具に関するものである。 The present invention relates to a tool for removing an outer coating of a multi-core optical fiber for adapting to connection work of an optical fiber cable, measurement or terminal formation.
【０００２】[0002]
従来の多心光ファイバ心線は、複数本の光ファイバを所定のピッチで間隔をお いて一列に並行に配列し、これらに共通の被覆を設けて構成されており、一括し て被覆層を除去し接続することを前提としていた。これにより光ファイバの高密 度の実装が可能であった。しかし、このように一括接続するために光ファイバを １心づつ調心することが不可能であり、コアの偏心が著しい光ファイバでは、接 続損失を低く抑えることが困難であった。 A conventional multi-core optical fiber core wire is configured by arranging a plurality of optical fibers in parallel in a row with a predetermined pitch, and providing a common coating on them, thus collectively forming a coating layer. It was supposed to be removed and connected. This enabled high-density mounting of optical fibers. However, it is impossible to align the optical fibers one by one because of such a collective connection, and it has been difficult to keep the splice loss low in an optical fiber in which the eccentricity of the core is significant.
【０００３】 このため、新たに１心づつ分離可能な多心光ファイバ心線が案出された。図２ はこのような多心光ファイバ心線の一例の横断面図で、複数本の光ファイバ11上 にはそれぞれ個別に被覆層12を有して内部心線13を形成しており、このような内 部心線13を一列に並行に配列した外側に共通の外部被覆層14を設けて多心光ファ イバ心線10を構成している。For this reason, a new multi-fiber optical fiber that can be separated one by one has been devised. FIG. 2 is a cross-sectional view of an example of such a multi-core optical fiber, in which a plurality of optical fibers 11 each have a coating layer 12 individually to form an inner core 13. A multi-core optical fiber core wire 10 is formed by arranging such inner core wires 13 in parallel in a row and providing a common outer coating layer 14 on the outside.
【０００４】 このような多心光ファイバ心線10は１心づつ独立した内部心線13を有するため 、それぞれの光ファイバのコアを調心して接続損失を低くできるが、断面寸法が 小さいため光ファイバに損傷を与えることなく安全に分離することが困難であっ た。又たとえ多心光ファイバ心線の端末部を工具なしで内部心線13を分離できた としても、少なからぬ損傷を与える危険性が高い上、大変な手間と時間が必要で あった。Since such a multi-core optical fiber core wire 10 has an internal core wire 13 which is independent for each core, the cores of the respective optical fibers can be aligned to reduce the connection loss. It was difficult to safely separate them without damaging them. Even if the inner end of the multi-core optical fiber can be separated without a tool at the end of the multi-core optical fiber, there is a high risk of causing considerable damage, and much labor and time are required.
【０００５】 又多心光ファイバ心線の場合、「後分岐」と称する分離作業が必要とされるが 、これは光ファイバの中間部の外部被覆層14を除去することにより単心の光ファ イバ心線に分離するものである。Further, in the case of a multi-core optical fiber, a separation operation called “post-branching” is required. This is a single-core optical fiber by removing the outer coating layer 14 in the middle part of the optical fiber. It is to be separated into Iba-core.
【０００６】[0006]
本考案は上述のような多心光ファイバ心線の外部被覆層を安全かつ確実に除去 する、外部被覆除去工具を提供するもので、その特徴は、枢軸により開閉可能と された上下部アームより成り、上部アームには多心光ファイバ心線の幅より広い 幅の刃物を配設するとともに、該刃物によって切開かれる外部被覆層の上部被覆 を排出する開口を設け、下部アームには多心光ファイバ心線の幅方向のずれを防 止するガイド部を設けたことにある。 The present invention provides an outer coating removing tool for safely and reliably removing the outer coating layer of the multi-core optical fiber as described above, which is characterized by the upper and lower arms that can be opened and closed by a pivot. The upper arm has a blade with a width wider than the width of the multi-core optical fiber, and an opening for discharging the upper coating of the outer coating layer cut by the blade is provided. The purpose of this is to provide a guide part that prevents the fiber core wire from shifting in the width direction.
【０００７】[0007]
図１は本考案の多心光ファイバ心線の内部心線13の分離に用いる被覆除去工具 の具体例の一部断面をあらわした側面図で、上下１対のアーム 22a， 22bが枢軸 23により開閉可能に設けられており、上部アーム 22aの内面先端付近には刃物21 が支持台24に角度を持って装着されており、又アーム 22aの刃物 21aにより切り 開かれた外部被覆層14の上部被覆部 14aが連続的に排出される開口25を具えてい る。 下部アーム 22bの内面の前記刃物21の装着した位置に対応する位置には光ファ イバ心線10のガイド板27を持ったガイド部26が形成されており、このガイド部26 に多心光ファイバ心線10をセットしたとき、前記刃物21の先端部 21aが内部心線 13の配列面に接するよう、その先端部 21aがガイド部26側に突出して設けられて いる。 しかして、前記被覆除去工具20のアーム 22a， 22bを開いて多心光ファイバ心 線10を下部アーム 22bのガイド部26に位置せしめ、被覆除去工具20を閉じ、相対 的に移動させると、外部被覆層14の上部被覆は図３のよう切り開かれ内部心線13 の分離が可能となる。 FIG. 1 is a side view showing a partial cross-section of a concrete example of a coating removing tool used for separating the inner core wire 13 of the multi-core optical fiber core wire of the present invention. A pair of upper and lower arms 22a and 22b are connected by a pivot 23. It is provided so that it can be opened and closed, and the blade 21 is attached to the support 24 at an angle near the tip of the inner surface of the upper arm 22a, and the upper portion of the outer coating layer 14 cut open by the blade 21a of the arm 22a. The covering 14a has an opening 25 through which it is continuously discharged. A guide portion 26 having a guide plate 27 of the optical fiber core wire 10 is formed at a position on the inner surface of the lower arm 22b corresponding to the position where the blade 21 is mounted, and the guide portion 26 has a multi-core optical fiber. When the core wire 10 is set, the tip end portion 21a of the blade 21 is provided so as to project toward the guide portion 26 so that the tip end portion 21a contacts the arrangement surface of the inner core wire 13. Then, the arms 22a and 22b of the coating removing tool 20 are opened to position the multi-core optical fiber core 10 in the guide portion 26 of the lower arm 22b, and the coating removing tool 20 is closed and moved relative to each other. The upper coating of the coating layer 14 is cut open as shown in FIG. 3 so that the inner core wire 13 can be separated.
【０００８】[0008]
図３は本考案の外部被覆除去工具を用いた内部心線の分離方法の説明図で、第 １図のような、複数本の光ファイバ11上にそれぞれ個別に被覆層12を有する内部 心線13を一列に並行に配列し、その外側に共通の外部被覆層14を設けて構成した 多心光ファイバ心線10の上記外部被覆層14の幅方向に内部心線13の配列面に接し て、光ファイバ心線10の幅より広い幅を持った刃物21を入れ相対的に多心光ファ イバ心線10の長さ方向に移動させることにより外部被覆層10は上下 14a， 14bに 切り開かれ内部の内部心線13を露出する。これを個々の内部心線13に分離し、例 えば１心づつ接続作業を行なう。この際、前記刃物21によって切開かれた外部被 覆層14の上部被覆 14aは、上部アーム 22aに設けた開口25から連続的に排出され ていく。 なお、本工具は「後分岐」用として、光ファイバテープの中間部の単心分離の ためにも適用可能である。 FIG. 3 is an explanatory view of a method of separating an inner core wire using the outer coating removing tool of the present invention. As shown in FIG. 1, an inner core wire having a coating layer 12 on each of a plurality of optical fibers 11 is individually provided. 13 are arranged in parallel in a row, and a common outer coating layer 14 is provided on the outer side of the multi-fiber optical fiber 10 so as to contact the arrangement surface of the inner core wires 13 in the width direction of the outer coating layer 14. The outer coating layer 10 is cut open into upper and lower parts 14a and 14b by inserting a blade 21 having a width wider than that of the optical fiber core wire 10 and moving it relatively in the length direction of the multi-fiber optical fiber core wire 10. The inner core wire 13 inside is exposed. This is separated into individual inner core wires 13 and, for example, connection work is performed for each core. At this time, the upper coating 14a of the outer coating layer 14 cut open by the blade 21 is continuously discharged from the opening 25 provided in the upper arm 22a. This tool can also be applied for “post-branch” and for single-fiber separation of the middle part of an optical fiber tape.
【０００９】 〔考案の名称〕 以上説明したように、本考案の多心光ファイバ心線の外部被覆除去工具によれ ば、多心光ファイバ心線の外部被覆層を安全かつ確実に切開き、内部心線を容易 に個別に分離することができる。従って、光ファイバケーブルの接続工事、測定 あるいは端末形成等に利用するとき効果的である。[Name of Device] As described above, according to the outer coating removing tool for a multi-fiber optical fiber of the present invention, the outer coating layer of the multi-fiber optical fiber can be safely and reliably cut open, The inner cores can easily be separated individually. Therefore, it is effective when it is used for optical fiber cable connection work, measurement, or terminal formation.
【図１】本考案の外部被覆除去工具の具体例の一部断面
をあらわした側面図である。FIG. 1 is a side view showing a partial cross section of a specific example of an external coating removing tool of the present invention.
【図２】本考案の対象とする多心光ファイバ心線の横断
面図である。FIG. 2 is a cross-sectional view of a multi-core optical fiber core wire according to the present invention.
【図３】本考案の外部被覆除去工具を用いた内部心線の
分離方法の説明図である。FIG. 3 is an explanatory view of a method of separating an inner core wire by using the outer coating removing tool of the present invention.
20 外部被覆除去工具 21 刃物 22a 上部アーム 22b 下部アーム 23 枢軸 24 刃物支持台 25 開口部 26 ガイド部 27 ガイド板 20 External coating removal tool 21 Blade 22a Upper arm 22b Lower arm 23 Axis 24 Blade support 25 Opening 26 Guide section 27 Guide plate
Claims (1)
本の内部心線を一列に並行に配列し、その上に共通の外
部被覆層を具えた多心光ファイバ心線の外部被覆層のみ
を除去する工具であって、枢軸により開閉可能とされた
上下部アームより成り、上部アームには多心光ファイバ
心線の幅より広い幅の刃物を配設するとともに、該刃物
によって切開かれる外部被覆層の上部被覆を排出する開
口を設け、下部アームには多心光ファイバ心線の幅方向
のずれを防止するガイド部を設けたことを特徴とする多
心光ファイバ心線の外部被覆除去工具。1. An outer coating layer of a multi-core optical fiber, wherein a plurality of inner core wires having individual coating layers are arranged in parallel on an optical fiber in a row, and a common outer coating layer is provided on the inner core wires. A tool for removing a blade, which is composed of upper and lower arms that can be opened and closed by a pivot, and in which an upper arm is provided with a blade having a width wider than the width of the multi-core optical fiber core, and is cut open by the blade. The outer coating of the multi-core optical fiber core wire is removed by providing an opening for discharging the upper coating of the coating layer and a guide part for preventing the shift of the multi-fiber optical fiber core width direction in the lower arm. tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1441094U JPH0719709U (en) | 1994-10-26 | 1994-10-26 | External coating removal tool for multi-core optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1441094U JPH0719709U (en) | 1994-10-26 | 1994-10-26 | External coating removal tool for multi-core optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0719709U true JPH0719709U (en) | 1995-04-07 |
Family
ID=11860281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1441094U Pending JPH0719709U (en) | 1994-10-26 | 1994-10-26 | External coating removal tool for multi-core optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719709U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5776503A (en) * | 1980-10-31 | 1982-05-13 | Fujitsu Ltd | Coated layer exfoliating mechanism of optical fiber |
| JPS5816605B2 (en) * | 1979-06-18 | 1983-04-01 | オムロン株式会社 | electromagnet device |
| JPS61238004A (en) * | 1985-04-15 | 1986-10-23 | Nippon Telegr & Teleph Corp <Ntt> | Remover for coating of optical fiber |
-
1994
- 1994-10-26 JP JP1441094U patent/JPH0719709U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5816605B2 (en) * | 1979-06-18 | 1983-04-01 | オムロン株式会社 | electromagnet device |
| JPS5776503A (en) * | 1980-10-31 | 1982-05-13 | Fujitsu Ltd | Coated layer exfoliating mechanism of optical fiber |
| JPS61238004A (en) * | 1985-04-15 | 1986-10-23 | Nippon Telegr & Teleph Corp <Ntt> | Remover for coating of optical fiber |
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