JPS62194204A - Cutting method for optical fiber - Google Patents
Cutting method for optical fiberInfo
- Publication number
- JPS62194204A JPS62194204A JP3707786A JP3707786A JPS62194204A JP S62194204 A JPS62194204 A JP S62194204A JP 3707786 A JP3707786 A JP 3707786A JP 3707786 A JP3707786 A JP 3707786A JP S62194204 A JPS62194204 A JP S62194204A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- cutting
- tension
- blade
- moved
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 71
- 238000005520 cutting process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 18
- 239000011247 coating layer Substances 0.000 claims description 10
- 238000006748 scratching Methods 0.000 claims description 8
- 230000002393 scratching effect Effects 0.000 claims description 8
- 230000006378 damage Effects 0.000 claims description 7
- 238000005253 cladding Methods 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は光ファイバケーブルの接続の際における光ファ
イバの切断方法に関し、特に高強度接続と呼ばれる技術
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for cutting optical fibers when connecting optical fiber cables, and particularly to a technique called high-strength connection.
（従来技術及び解決しようとする問題点）上記高強度接
続は５〜ｌ０ｋ−程度の比較的短かい単長の光ファイバ
を接続して５０〜１００に−の長尺の光ファイバとする
ときに用い、これが全長にわたって低強度部が無いこと
を保証する特殊な光ファイバで、海底ケーブル等長距離
の光伝送の分野で使用される。(Prior art and problem to be solved) The above-mentioned high-strength connection is performed when connecting relatively short single-length optical fibers of about 5 to 10 k- to make a 50 to 100- to long optical fiber. This is a special type of optical fiber that guarantees that there are no low-strength sections along its entire length, and is used in the field of long-distance optical transmission such as undersea cables.
このような高強度接続のためには接続前後の処理におい
て、光ファイバに傷等の低強度部を付与しないことが肝
要である。これがため、通常は被覆層の上から光ファイ
バを鏡面切断し、その後被覆属を除去して接続するとい
う方法がとられている。被覆層の除去も、２個のフェル
トローラを回転させつつ挟み込む方法や例えばＨ２Ｓ
０４を用いる等の化学的処理で除去する方法等が用いら
れている。In order to achieve such a high-strength connection, it is important to avoid adding low-strength parts such as scratches to the optical fiber during processing before and after the connection. For this reason, the usual method is to mirror-cut the optical fiber from above the coating layer, then remove the coating and connect. The coating layer can also be removed by rotating and sandwiching two felt rollers or by using H2S, for example.
Methods such as chemical treatment such as using 04 are used.
又切断においては、光ファイバの被覆層を例えばシリコ
ーン樹脂、 ＵＶアクリル樹脂等の軟質の被覆層とし、
このような被覆層をもった光ファイバ心線を厚さ１〜２
霞１のゴムを貼付した板バネ上にセットする。このよう
な状態で超硬合金あるいはダイヤ製のチップを手に持ち
、上記被覆層の上から光ファイバまで切り込んで傷をつ
ける。このあと、傷の個所を挟んで光ファイバ心線を２
ケ所把持し、上記板バネごと折り曲げるようにする。When cutting, the optical fiber is coated with a soft coating layer such as silicone resin or UV acrylic resin.
Optical fiber coated with such a coating layer is coated with a thickness of 1 to 2
Set it on the leaf spring to which Kasumi 1 rubber is attached. In this state, hold a tip made of cemented carbide or diamond in your hand and cut into the optical fiber from above the coating layer to scratch it. After this, insert two coated optical fibers across the scratched part.
Grip it in place and bend the leaf spring together.
これにより光ファイバには適度な張力と曲げ応力が与え
られることになり切断面は鏡面となる。As a result, appropriate tension and bending stress are applied to the optical fiber, and the cut surface becomes a mirror surface.
しかし、上述の方法は手作業であり、スキルを要するう
え、成功率は必ずしも高（なかった。However, the above methods are manual, require skill, and have not always had a high success rate.
（問題点を解決するための手段）
本発明は上述の問題点を解消した改良された光ファイバ
の切断方法を提供するもので、その特徴は、光ファイバ
上に被覆層を有する光ファイバ心線の端末部を２ケ所把
持して初期張力を与え、その中間部において超硬質チッ
プの加傷刃で光ファイバを被覆上より加傷し、続いて少
くとも一方の心線把持部を移動させて光ファイバ内の張
力を増加することにより、当該光ファイバを鏡面切断す
ることにある。(Means for Solving the Problems) The present invention provides an improved optical fiber cutting method that solves the above-mentioned problems. Grip the end of the fiber in two places to apply initial tension, damage the optical fiber from above the coating with a scratching blade of an ultra-hard tip in the middle part, and then move at least one core gripping part. By increasing the tension within the optical fiber, the optical fiber is mirror-cut.
（実施例）
第１図は本発明の切断方法を実現する切断装置を示し、
同図（イ）は平面図、同図（ロ）は同図（イ）のＸ＋
−Ｘ＋断面図、同図（ハ）は同図頓のＸ２− Ｘ２断面
図、同図に）は同図（イ）の平面に平行な断面図である
。又第２図は上記第１図の装置の概要説明図である。(Example) FIG. 1 shows a cutting device that realizes the cutting method of the present invention,
The same figure (a) is a plan view, the same figure (b) is the X+ of the same figure (a)
-X+ sectional view, the same figure (c) is an X2-X2 sectional view of the same figure, and the same figure) is a sectional view parallel to the plane of the same figure (a). FIG. 2 is a schematic explanatory diagram of the apparatus shown in FIG. 1.
図面において、（１）はベース板で、その上部には被覆
層を育する光ファイバ心線（Ａ）を把持する左右のクラ
ンプ（２Ｘ３） 、超硬合金、ダイヤ製のチップを有す
る加傷刃（５）を収納したカッタボックス（４）、上記
加傷刃（５）の刃圧を調整するバネを具えた刃圧調整部
（Ｂ）、光ファイバ心線（Ａ）を位置決めする左右の心
線ガイド（７）（８）及びフ１イパ受け（３）が位置し
ている。In the drawing, (1) is a base plate, on which are left and right clamps (2 x 3) that grip the optical fiber core (A) that grows the coating layer, and a scratching blade with a tip made of cemented carbide and diamond. A cutter box (4) containing (5), a blade pressure adjustment part (B) equipped with a spring that adjusts the blade pressure of the scratching blade (5), and left and right centers for positioning the optical fiber core (A). Line guides (7) and (8) and a fiber receiver (3) are located there.
光ファイバ心線（Ａ）を把持する左右のクランプ（２Ｘ
３）の一方の左クランプ（２）はベース板（１）上に固
定されているが、右クランプ（３）のクランプ台（１７
）はベース板（１）の内部に延びている。このクランプ
′°台（鳳７）にはスライド軸（２３）が貫通しており
、スライド軸（２３）にはクランプ台０７）を挟んで左
右にバネＡ（２Ｉ）及びバネＢ（２２）が装着されてい
る。上記バネＡ（２り及びバネＢ（２２）はモータ（Ｉ
８）を駆動源としカム０９）、カムホロワ（２０）を介
して作動し、２つのバネ（２１）（２２）の差圧によっ
て右クランプ（３）のクランプ台（１７）がスライド軸
（２３）を矢印の方向に移動し光ファイバ心線（Ａ）に
張力を付与することになる。Left and right clamps (2X
One of the left clamps (2) of 3) is fixed on the base plate (1), but the clamp base (17) of the right clamp (3) is fixed on the base plate (1).
) extends inside the base plate (1). A slide shaft (23) passes through this clamp stand (Otori 7), and a spring A (2I) and a spring B (22) are attached to the left and right sides of the slide shaft (23) across the clamp stand (07). It is installed. The above spring A (2) and spring B (22) are connected to the motor (I).
8) is the driving source and operates via the cam 09) and the cam follower (20), and the clamp base (17) of the right clamp (3) is moved to the slide shaft (23) by the differential pressure between the two springs (21) and (22). is moved in the direction of the arrow to apply tension to the optical fiber (A).
又ベース板（＋）の内部には加傷刃（５）を光ファイバ
心ｌｉｔ （Ａ）の軸に垂直な面に移動させる機構と加
傷刃（５）を光ファイバ心！ｉ （Ａ）の円周方向に沿
って移動させる機構がある。即ち、加傷刃（５）を光フ
ァイバ心線（Ａ）の軸に垂直な方向に前後させる前後ガ
イド軸（１０）及び光ファイバ心線（Ａ）の円周方向に
沿って上下させる上下ガイド軸（１２）を具えており、
加傷用モータ（１５）の回転によってカムホロワ（１１
）あるいはカムホロワ（１３）を介してカム（！４）を
回転させることにより、加傷刃（５）は前記前後ガイド
軸（ｌＯ）あるいは上下ガイド軸（■２）を前後あるい
は上下方向に移動する。Also, inside the base plate (+) is a mechanism that moves the scratching blade (5) to a plane perpendicular to the axis of the optical fiber core (A), and a mechanism that moves the scratching blade (5) to the optical fiber core! There is a mechanism for moving along the circumferential direction of i (A). That is, a front and rear guide shaft (10) that moves the damaging blade (5) back and forth in a direction perpendicular to the axis of the optical fiber (A) and a vertical guide that moves it up and down along the circumferential direction of the optical fiber (A). It has a shaft (12),
The rotation of the injury motor (15) causes the cam follower (11
) or by rotating the cam (!4) via the cam follower (13), the wounding blade (5) moves the longitudinal guide shaft (lO) or the vertical guide shaft (■2) in the longitudinal or vertical direction. .
第３図は本発明の切断方法における光ファイバへの加傷
動作の説明図である。まず、光ファイバ（Ｂ）上に被覆
層を存する光ファイバ心ｍｌ （Ａ）の端末部を前記左
右のクランプ（２）（３）にセットするシこの時の加傷
刃（５）と光ファイバ心線（Ａ）の位置関係は第３図に
）のように加傷刃（５）は光ファイバ心線（Ａ）の軸の
垂直面上にある。次いで加傷刃（５）をこの面で接近す
るように移動させて両者を接触させる（同図口）。続い
て接触した状態で加傷刃（５）を光ファイバの円周方向
へ移動して加傷しく同図ハ）、シかる後加傷刃（５）を
後退させる。このように加傷刃（５）を光ファイバに垂
直に接触させるだけでなく、接触後、円周方向に移動さ
せることにより、被覆上から光ファイバに傷をつけるこ
とができ、しかも傷が浅く円周方向に長く付与でき、鏡
面でかつ軸に直角な端面を形成することが可能となる。FIG. 3 is an explanatory diagram of the operation of damaging the optical fiber in the cutting method of the present invention. First, the end portion of the optical fiber core ml (A) having a coating layer on the optical fiber (B) is set in the left and right clamps (2) and (3). As shown in FIG. 3 (for the positional relationship of the optical fiber (A)), the damaging blade (5) is on a plane perpendicular to the axis of the optical fiber (A). Next, the wounding blade (5) is moved closer to this surface to bring them into contact (see the opening in the figure). Subsequently, while in contact with each other, the damaging blade (5) is moved in the circumferential direction of the optical fiber to damage the optical fiber (Fig. In this way, by not only bringing the scratching blade (5) into contact with the optical fiber perpendicularly, but also by moving it in the circumferential direction after contact, it is possible to scratch the optical fiber from above the coating, and the scratches are shallow. It can be provided long in the circumferential direction, and it is possible to form a mirror-finished end face perpendicular to the axis.
に付与する張力のシーケンス、第５図は切断動作の説明
図である。FIG. 5 is an explanatory diagram of the cutting operation.
切断にあたっては、まず第５図（イ）のように光ファイ
バ上に被覆層を存する光ファイバ心線（Ａ）の端末部を
左右のクランプ（２）（３）で把持する。この状態では
光ファイバ心線（Ａ）にはたるみが存在している。次い
で同図（ロ）のように右クランプ（３）を矢印の方向に
移動させて光ファイバ心線（Ａ）に初期張力（Ｆｌ）を
付与して上記たるみを除去し、この状態で前述の第３図
について説明したように加傷刃（５）により光ファイバ
に傷を付与する（同図ハ）。続いて、さらに右クランプ
（３）を矢印の方向に移動させて張力を増加していき光
ファイバを切断する（同図二）。この時の最終張力（Ｆ
２）は３００ ｇ以上となる。For cutting, first, as shown in FIG. 5(a), the end portion of the optical fiber core wire (A) having a coating layer on the optical fiber is held by the left and right clamps (2) and (3). In this state, there is slack in the optical fiber (A). Next, as shown in the same figure (b), the right clamp (3) is moved in the direction of the arrow to apply initial tension (Fl) to the optical fiber (A) to remove the above-mentioned slack, and in this state, the above-mentioned As explained with reference to FIG. 3, the optical fiber is scratched by the scratching blade (5) (FIG. 3). Next, the right clamp (3) is further moved in the direction of the arrow to increase the tension and cut the optical fiber (FIG. 2). The final tension at this time (F
2) is 300 g or more.
その後右クランプ（３）を同図（ホ）のように矢印の方
向に移動して一連の切断動作が終了する。Thereafter, the right clamp (3) is moved in the direction of the arrow as shown in the figure (e), and the series of cutting operations is completed.
（発明の効果）
上述した本発明の光ファイバの切断方法によれば、光フ
ァイバへの加傷は、加傷刃を光ファイバに垂直に入れる
だけでなく、接触後、円周方向に移動させることになり
、被覆上から光ファイバに傷をつけることができ、しか
も傷が浅く円周方向に長く付与でき、鏡面かつ軸に直角
な端面を形成することが可能となる。(Effects of the Invention) According to the above-described optical fiber cutting method of the present invention, the optical fiber is damaged by not only inserting the damaging blade perpendicularly into the optical fiber but also by moving it in the circumferential direction after contact. Therefore, the optical fiber can be scratched from above the coating, the scratches can be shallow and long in the circumferential direction, and it is possible to form a mirror-finished end face perpendicular to the axis.
えて切断位置を決める。このため人によるセットのばら
つきも吸収でき、加傷位置も一定の範囲に収まる。さら
に張力のみで光ファイバを切断に至らしめるため機構が
簡単である等の利点を有する。to determine the cutting position. For this reason, it is possible to absorb variations in setting by people, and the position of injury can be kept within a certain range. Furthermore, since the optical fiber is cut only by tension, it has the advantage of a simple mechanism.
第１図は本発明の光ファイバの切断方法を実現する切断
装置を示し、同図（イ）は平面図、同図（ロ）は（イ）
図のＸ＋−Ｘ＋の断面図、同図（ハ）は（イ）図のＸ２
−Ｘ２断面図、同図に）は（イ）図の平面に平行な断面
図、第２図は第１図の装置の概要説明図である。
又第３図は本発明の切断方法における加傷動作の説明図
、第４図及び第５図は本発明の切断方法における光ファ
イバに付与する張力のシーケンス及び切断動作の説明図
である。
１・・・ベース板、２．３・・・クランプ、４・・・カ
ッターボックス、５・・・加傷刃、７，８・・・心線ガ
イド、９・・・ファイバ受け、１０・・・刃の前後ガイ
ド軸、！２・・・刃の上下ガイド軸、！５・・・加傷用
モータ、１７・・・クランプ台、＋８・・・引張用モー
タ、 ２１．２２・・・加圧バネ、２３・・・スライド
軸
第１図（ワ）
第 １ 図（ニ）
穿５ＨｌFIG. 1 shows a cutting device that implements the optical fiber cutting method of the present invention, in which (a) is a plan view and (b) is a plan view.
A sectional view of X+-X+ in the figure, (C) is X2 in the figure (A)
-X2 sectional view (in the same figure) is a sectional view parallel to the plane of the figure (A), and FIG. 2 is a schematic explanatory diagram of the apparatus shown in FIG. 1. FIG. 3 is an explanatory diagram of the damaging operation in the cutting method of the present invention, and FIGS. 4 and 5 are explanatory diagrams of the sequence of tension applied to the optical fiber and the cutting operation in the cutting method of the present invention. DESCRIPTION OF SYMBOLS 1... Base plate, 2.3... Clamp, 4... Cutter box, 5... Damaging blade, 7, 8... Core wire guide, 9... Fiber receiver, 10...・Blade front and rear guide axis! 2... The upper and lower guide axis of the blade! 5... Motor for applying damage, 17... Clamp stand, +8... Motor for tension, 21.22... Pressure spring, 23... Slide shaft Fig. 1 (W) Fig. 1 ( d) Hole 5Hl
Claims (4)
端末部を２ヶ所把持して初期張力を与え、その中間部に
おいて超硬質チップの加傷刃で光ファイバを被覆層上よ
り加傷し、続いて少くとも一方の心線把持部を移動させ
て光ファイバ内の張力を増すことにより当該光ファイバ
を鏡面切断することを特徴とする光ファイバの切断方法
。(1) Grip the ends of the optical fiber core wire with a coating layer on the optical fiber at two places to apply initial tension, and in the middle part, scratch the optical fiber from above the coating layer with the scratching blade of the ultra-hard tip. A method for cutting an optical fiber, the method comprising: then moving at least one core wire gripper to increase the tension within the optical fiber, thereby cutting the optical fiber into a mirror surface.
うに移動して両者が接触し、続いて接触した状態で加傷
刃が光ファイバの円周方向へ移動して加傷することを特
徴とする特許請求の範囲第１項記載の光ファイバの切断
方法。(2) The damaging blade moves close to the optical fiber in a plane perpendicular to the axis of the optical fiber so that they come into contact, and then, while in contact, the damaging blade moves in the circumferential direction of the optical fiber to damage it. A method for cutting an optical fiber according to claim 1, characterized in that:
てその差圧で光ファイバ心線のクランプを移動させるこ
とにより光ファイバに張力を付与することを特徴とする
特許請求の範囲第１項記載の光ファイバの切断方法。(3) A motor is used as a driving source, and tension is applied to the optical fiber by moving a clamp of the optical fiber core wire using a pressure difference between at least two springs. The method for cutting an optical fiber according to item 1.
力と切断応力以上の力を与える最終張力を決められたシ
ーケンスに従って光ファイバに付与することを特徴とす
る特許請求の範囲第１項記載の光ファイバの切断方法。(4) Claim 1, characterized in that an initial tension for correcting slack in the optical fiber before damage and a final tension for applying a force greater than the cutting stress are applied to the optical fiber according to a predetermined sequence. The optical fiber cutting method described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3707786A JPS62194204A (en) | 1986-02-20 | 1986-02-20 | Cutting method for optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3707786A JPS62194204A (en) | 1986-02-20 | 1986-02-20 | Cutting method for optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62194204A true JPS62194204A (en) | 1987-08-26 |
Family
ID=12487487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3707786A Pending JPS62194204A (en) | 1986-02-20 | 1986-02-20 | Cutting method for optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62194204A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004131323A (en) * | 2002-10-09 | 2004-04-30 | Nippon Telegr & Teleph Corp <Ntt> | Process for cutting optical fiber |
| JP2014238574A (en) * | 2013-05-07 | 2014-12-18 | 株式会社フジクラ | Optical fiber cutting method and optical fiber cutter |
| WO2018212004A1 (en) | 2017-05-15 | 2018-11-22 | 株式会社フジクラ | Fiber cutter |
-
1986
- 1986-02-20 JP JP3707786A patent/JPS62194204A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004131323A (en) * | 2002-10-09 | 2004-04-30 | Nippon Telegr & Teleph Corp <Ntt> | Process for cutting optical fiber |
| JP2014238574A (en) * | 2013-05-07 | 2014-12-18 | 株式会社フジクラ | Optical fiber cutting method and optical fiber cutter |
| JP2018136542A (en) * | 2013-05-07 | 2018-08-30 | 株式会社フジクラ | Optical fiber cutting method and optical fiber cutter |
| WO2018212004A1 (en) | 2017-05-15 | 2018-11-22 | 株式会社フジクラ | Fiber cutter |
| CN110446958A (en) * | 2017-05-15 | 2019-11-12 | 株式会社藤仓 | Optical fiber cleaver |
| CN110446958B (en) * | 2017-05-15 | 2021-07-02 | 株式会社藤仓 | Optical fiber cutting device |
| US11262503B2 (en) | 2017-05-15 | 2022-03-01 | Fujikura Ltd. | Fiber cutter |
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