JP2001342033A - Method and apparatus of manufacturing optical fiber - Google Patents

Method and apparatus of manufacturing optical fiber

Info

Publication number
JP2001342033A
JP2001342033A JP2000158718A JP2000158718A JP2001342033A JP 2001342033 A JP2001342033 A JP 2001342033A JP 2000158718 A JP2000158718 A JP 2000158718A JP 2000158718 A JP2000158718 A JP 2000158718A JP 2001342033 A JP2001342033 A JP 2001342033A
Authority
JP
Japan
Prior art keywords
optical fiber
ball
twisting
imparting
twist
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
JP2000158718A
Other languages
Japanese (ja)
Inventor
Takashi Fujita
敬 藤田
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.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP2000158718A priority Critical patent/JP2001342033A/en
Publication of JP2001342033A publication Critical patent/JP2001342033A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/03—Drawing means, e.g. drawing drums ; Traction or tensioning devices
    • C03B37/032—Drawing means, e.g. drawing drums ; Traction or tensioning devices for glass optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/18—Axial perturbations, e.g. in refractive index or composition
    • C03B2203/19—Alternating positive/negative spins or twists
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/36—Dispersion modified fibres, e.g. wavelength or polarisation shifted, flattened or compensating fibres (DSF, DFF, DCF)
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/06—Rotating the fibre fibre about its longitudinal axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing an optical fiber with an excellent polarizing property. SOLUTION: A manufacturing apparatus is provided with a globe 5 for imparting twist, a rotating frame 3, driving disks 6A, 6B and a changeover device 7. The globe 5 is arranged so as to come in contact with the optical fiber 1 running vertically and is supported to rotate freely to any direction with several supporting balls 43 which come in contact with the surface of the globe 5 and rotate freely. The rotating frame 3 is arranged to rotate between the prescribed two points in a plane normal to a running direction of the optical fiber 1. The driving disks 6A, 6B which are driven to rotate reversely each other on the frame 3 come in contact with the globe 5 and rotate it. The changeover device 7 is provided with a cam 72 which rotates the frame 3 at a proper period, then transfers either disks of 6A and 6B to the rotating and driving position of the globe 5.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は光ファイバの製造
方法およびその装置、さらに詳しく言えば偏波分散を小
さくするよう改良された光ファイバの製造方法およびそ
の装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing an optical fiber, and more particularly, to a method and an apparatus for manufacturing an optical fiber improved so as to reduce polarization dispersion.

【０００２】[0002]

【従来の技術】光ファイバ母材の一端を加熱・軟化さ
せ、そこから光ファイバを線引きするだけの従来の製造
方法では、光ファイバのコア部分およびその周囲のクラ
ッド部分の断面形状を完全に真円形の同心円状にするこ
とは困難であり、わずかに楕円形または歪んだ円形にな
るのが通例であった。従って光ファイバの断面構造にお
ける屈折率分布も完全な同心円状ではなくなり、これが
原因となって光ファイバ断面内の直交する２偏波間の群
速度に差異が生じ、偏波分散が大きくなってしまう問題
があった。2. Description of the Related Art In a conventional manufacturing method in which one end of an optical fiber preform is heated and softened and an optical fiber is drawn therefrom, a cross-sectional shape of a core portion of the optical fiber and a cladding portion around the core portion are completely true. Circular concentric circles are difficult to achieve and are usually slightly elliptical or distorted. Therefore, the refractive index distribution in the cross-sectional structure of the optical fiber is no longer completely concentric, and this causes a difference in the group velocity between two orthogonal polarizations in the cross-section of the optical fiber, thereby increasing polarization dispersion. was there.

【０００３】こうした偏波分散の問題を解決するために
は、これまでの研究の結果光ファイバの紡糸をねじるこ
とが有効であることが知られ、たとえばコーニング社の
傾斜プーリー法やＡＴ＆Ｔ社の揺動プーリー法などが報
告されている。またわが国で公刊されている資料として
は、たとえば特開平８−２９５５２８号「光ファイバお
よび光ファイバの製造方法」、特表平１０−５０７４３
８号「低偏光モード分散特性を持つ光ファイバ」があ
る。In order to solve such a problem of polarization dispersion, it has been known from research to date that it is effective to twist the spinning of an optical fiber. For example, the inclined pulley method of Corning and the swing of AT & T are known. The dynamic pulley method has been reported. Materials published in Japan include, for example, Japanese Patent Application Laid-Open No. 8-295528, “Optical fiber and optical fiber manufacturing method”, and Japanese Patent Publication No. Hei 10-50743.
No. 8 "Optical fiber having low polarization mode dispersion characteristics" is available.

【０００４】[0004]

【発明が解決しようとする課題】このような従来の技術
は、光ファイバの製造速度が毎分数十メートルの低速で
ある場合には有効であるが、毎分数百〜１０００メート
ルを越える高速の場合には効果的にねじりを入れること
が困難なものが殆どである。光ファイバにねじりを与え
る場合は光ファイバにくせが出ないように、適時ねじり
方向を変える必要がある。従来の技術ではさらに光ファ
イバをねじるためのローラやプーリー類を高速かつ短い
周期をもって回転または移動方向を反転させる必要があ
り、このことはモータ等の回転機器の固有の慣性モーメ
ントの大きさのため非常に困難であった。またこれを可
能とする装置もあるが、そのような機器では、今度はそ
の反転周期やねじり回数の変更・調整ができなくなるよ
うな機構であった。Such a conventional technique is effective when the production speed of an optical fiber is as low as several tens of meters per minute, but it is high speed exceeding several hundred to 1,000 meters per minute. In most cases, it is difficult to effectively twist. When twisting an optical fiber, it is necessary to change the twisting direction as appropriate so that the optical fiber does not become hazy. In the prior art, it is necessary to reverse the rotation or the moving direction of the rollers and pulleys for twisting the optical fiber at high speed and with a short cycle.This is due to the inherent moment of inertia of the rotating device such as a motor. It was very difficult. Although there are devices that can make this possible, such a device has a mechanism that makes it impossible to change or adjust the reversal cycle and the number of twists.

【０００５】[0005]

【課題を解決するための手段】この発明は上述の課題を
解決するためになされたものであって、請求項１の発明
によるその解決手段は、線引きされて一次被覆をつけら
れ鉛直方向に走行する光ファイバの一部区間を横方向に
ずれないように抑制する工程と、前記区間内において前
記光ファイバにすべての方向に自由に回転できるよう保
持された撚回付与球を接触させる工程と、前記撚回付与
球に前記光ファイバの走行方向に直交する方向の正逆の
回転を与える工程と、前記正逆の回転を適宜周期をもっ
て切り替える工程とを有する光ファイバの製造方法であ
る。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a solution according to the first aspect of the present invention is to draw a primary coating and travel in a vertical direction. A step of suppressing a section of the optical fiber to be prevented from laterally shifting, and a step of contacting the twist imparting ball held so as to be freely rotatable in all directions with the optical fiber in the section, A method of manufacturing an optical fiber, comprising: a step of giving the twist imparting sphere a forward / reverse rotation in a direction orthogonal to a running direction of the optical fiber; and a step of switching the forward / reverse rotation at an appropriate cycle.

【０００６】また請求項２の発明によるその解決手段
は、鉛直方向に走行する光ファイバの上、下２個所に配
置され、この区間における走行線の横ずれを防止する線
抑え手段と、前記区間において前記光ファイバに接触す
るよう配設され、球表面に接触する複数の回転自在な支
持球によってすべての方向に回転自在に保持される撚回
付与球と、前記光ファイバの走行方向に直交する水平面
内において所定の２つの位置間を回動可能に設けられる
回動フレームと、前記回動フレーム上の前記撚回付与球
の両側に配設され、前記平面内において互いに逆方向に
回転駆動され、前記撚回付与球に接触することによって
これを回転駆動する円板状の２枚の駆動円板と、前記回
動フレームを適宜周期をもって前記２つの位置を交互に
取るように回動させ、これによって前記駆動円板のいず
れか一方を前記撚回付与球の駆動位置に移動させる切替
え装置とを有する光ファイバの製造装置である。The solution according to the second aspect of the present invention is a line restraining means which is disposed at two places above and below an optical fiber traveling in a vertical direction and prevents lateral displacement of a traveling line in this section. A twist imparting ball disposed so as to be in contact with the optical fiber and rotatably held in all directions by a plurality of rotatable support balls in contact with the ball surface, and a horizontal plane orthogonal to the running direction of the optical fiber A rotation frame provided rotatably between two predetermined positions within, and disposed on both sides of the twist imparting ball on the rotation frame, are driven to rotate in opposite directions in the plane, By rotating the rotating frame so as to alternately take the two positions with an appropriate period, the two disk-shaped driving disks for rotating and rotating the ball by contacting the twist imparting ball. This is a manufacturing apparatus of an optical fiber having a switching device and moving the driving position of imparting ball twisted Kai said either one of said drive disc.

【０００７】[0007]

【発明の実施の形態】図１および図２についてこの発明
の一実施例装置を詳しく説明する。線引きされ一次被覆
された光ファイバ１の鉛直方向の適宜の間隔をおいた
上、下２個所には、互いに反対方向から接触させた１組
の案内ローラのような線抑え手段２が設けられ、この線
抑え手段２に挟まれた区間には撚回付与球５が側方から
接触状態に保持される。撚回付与球５は光ファイバ１に
撚回、つまりねじりのための回転を与えるものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to FIGS. At an appropriate interval in the vertical direction of the drawn and primary-coated optical fiber 1, line lowering means 2 such as a set of guide rollers contacted from opposite directions are provided at the lower two places, In the section sandwiched by the wire holding means 2, the twist imparting ball 5 is held in a contact state from the side. The twist imparting ball 5 twists the optical fiber 1, that is, imparts rotation for twisting.

【０００８】撚回付与球５の表面は光ファイバ１に接触
してこれを損傷するような荒れた粗面でもなく、しかし
鏡面のように平滑ですべり易いこともない適度の摩擦面
であることが必要であり、そのように表面処理がされて
いる。[0008] The surface of the twist imparting ball 5 is not a rough surface that comes into contact with and damages the optical fiber 1, but is a moderate friction surface that is smooth and not easily slippery like a mirror surface. Is required, and the surface treatment is performed in such a manner.

【０００９】撚回付与球５は保持装置４によってあらゆ
る方向に回転可能に保持される。保持装置４は図３に示
されるように、ちょうど４本の柱を持つ四足門のように
４本の保持アーム４１の先端が球殻部４２となってお
り、この球殻部４２が立体中心角で半球よりわずかに大
きい球殻部分を有して内部に支持球４３を回転可能にと
どめおく構造となっている。もちろん保持アームは３本
以上の複数個のものでもよい。The twist imparting ball 5 is held by the holding device 4 so as to be rotatable in all directions. As shown in FIG. 3, the holding device 4 has a spherical shell portion 42 at the tip of four holding arms 41, just like a four-limb having four pillars. It has a structure in which the support ball 43 is rotatably held inside with a spherical shell portion having a central angle slightly larger than a hemisphere. Of course, three or more holding arms may be used.

【００１０】保持装置４は上下の２方向から押圧ばね４
４によって撚回付与球５に押当てられ、この合計８個の
支持球４３によって撚回付与球５をその中心のまわりに
あらゆる方向に回転自在に保持するわけである。The holding device 4 is provided with a pressing spring 4 from two upper and lower directions.
4, the twisting ball 5 is pressed against the twisting ball 5, and the eight supporting balls 43 hold the twisting ball 5 rotatably around its center in all directions.

【００１１】回動フレーム３は回動軸３１を持ち、この
周りに水平面内において回動可能に支持される。回動フ
レーム３上のほぼ両端部の、ちょうど撚回付与球５の両
側に当たる位置には、撚回付与球５の中心の高さに駆動
円板６Ａ，６Ｂが同じく水平面内に回転可能に設けられ
る。駆動円板６Ａ（６Ｂも同一）は外周にたとえばゴム
板のような適宜の摩擦帯６７が貼設され、撚回付与球５
と接することによってこれを回転駆動する。The rotating frame 3 has a rotating shaft 31 around which it is rotatably supported in a horizontal plane. Drive disks 6A and 6B are provided at substantially the two ends on the rotating frame 3 at positions corresponding to both sides of the twisting ball 5 at the height of the center of the twisting ball 5 so as to be rotatable in the horizontal plane. Can be An appropriate friction band 67 such as a rubber plate is attached to the outer periphery of the driving disk 6A (the same applies to the driving disk 6B), and
This is driven to rotate by contact with

【００１２】駆動円板６ＡはモータＭ1からプーリー６
２、プーリー６１を経由してベルト６６により回転駆動
される。一方駆動円板６Ｂは駆動円板６Ａと同じ駆動軸
の歯車６３に噛み合う歯車６４の軸に固着される同径の
プーリー６５から回転駆動されるから、駆動円板６Ａと
は常に逆方向に同一回転数をもって回転している。[0012] The drive disk 6A is from the motor M 1 pulley 6
2. It is rotationally driven by a belt 66 via a pulley 61. On the other hand, the driving disk 6B is driven to rotate by a pulley 65 of the same diameter fixed to the shaft of the gear 64 meshing with the gear 63 of the same driving shaft as the driving disk 6A. It is rotating at the speed.

【００１３】さきに述べた回動フレーム３は、もちろん
この駆動円板６Ａが撚回付与球５に接触する位置と、駆
動円板６Ｂが接触する位置の２つの位置間を回動するこ
とになる。こうして撚回付与球５はその接触する駆動円
板の回転方向に従って回転駆動される。The rotating frame 3 described above is, of course, capable of rotating between two positions, that is, the position where the driving disk 6A contacts the twist imparting ball 5 and the position where the driving disk 6B contacts. Become. In this way, the twist imparting ball 5 is rotationally driven in accordance with the rotational direction of the driving disk that makes contact.

【００１４】回動フレーム３の撚回付与球５と反対側に
は２つの回動駆動突起部３２が設けられ、その２つの突
起部３２の間に緩衝ばね６８が差し渡しに嵌挿され、そ
の中間に切替えレバ７１が回動支点７３の周りに回動可
能に配設される。Two rotating drive projections 32 are provided on the rotating frame 3 on the side opposite to the twist imparting balls 5, and a buffer spring 68 is inserted between the two projections 32. A switching lever 71 is provided in the middle so as to be rotatable around a rotation fulcrum 73.

【００１５】切替えレバ７１はほぼＹ字状をなし、その
間に大径円部と小径円部とを１８０度づつ持つ異径円形
のカム７２が配置される。このカム７２はモータＭ2に
よって適宜速度をもって常時回転駆動されており、その
１回転の間に回動フレーム３を左、右に振る形に回動さ
せ、これにより駆動円板６Ａまたは６Ｂを撚回付与球５
の直径位置に側方から押圧接触させて、同撚回付与球を
左、右に回転させることになるのである。The switching lever 71 has a substantially Y-shape, and a cam 72 of a different diameter having a large-diameter circular portion and a small-diameter circular portion at 180 degrees is arranged between them. The cam 72 is always rotated driven with an appropriate speed by a motor M 2, to rotate the pivoting frame 3 during its one rotation left, into a form that shake the right, thereby twisting the drive disc 6A or 6B Time grant ball 5
Is pressed from the side to the diameter position of, and the twisted imparting ball is rotated left and right.

【００１６】光ファイバ１は図で下方に常時走行してい
るから、駆動円板６Ａまたは６Ｂが接触して撚回付与球
５が回転している間も、同撚回付与球５は光ファイバ１
から下方への回転力を受ける。実際は撚回付与球５はこ
の合成方向に回転することになる。Since the optical fiber 1 is always traveling downward in the figure, the twisted imparting ball 5 is kept in contact with the driving disc 6A or 6B while the twisted imparting ball 5 is rotating. 1
Receives downward rotational force from Actually, the twist imparting ball 5 rotates in this synthesis direction.

【００１７】以上に説明した構成から容易にわかるよう
に、撚回付与球５は左、右に回転駆動され、これに接す
る光ファイバ１はＳ、Ｚのねじり（撚回）を交互に受け
ることになる。この光ファイバ１への撚回の過程で撚回
付与球５は自由に下方にも回転できるから、光ファイバ
１に不必要で有害な引張抵抗を課すことはない。As can be easily understood from the configuration described above, the twist imparting ball 5 is driven to rotate left and right, and the optical fiber 1 in contact therewith is subjected to S and Z twists (twist) alternately. become. In the process of twisting the optical fiber 1, the twist imparting ball 5 can freely rotate downward, so that unnecessary and harmful tensile resistance is not imposed on the optical fiber 1.

【００１８】[0018]

【発明の効果】請求項１および請求項２の発明によれ
ば、中心の周りにあらゆる方向に自由に回転できる撚回
付与球によって光ファイバに撚回を与える構成であるか
ら、高速で走行する光ファイバにも有効なＳ、Ｚ方向の
撚回を付与できるとともに、光ファイバに有害な引張力
を加えることもなく、この結果所望の偏波問題を解決し
た良好な光ファイバを製造できる利点がある。According to the first and second aspects of the present invention, the optical fiber is twisted by the twist imparting ball which can freely rotate around the center in any direction, so that the optical fiber runs at high speed. Effective twisting in the S and Z directions can be imparted to the optical fiber, and no harmful tensile force is applied to the optical fiber. As a result, it is possible to manufacture a good optical fiber that solves the desired polarization problem. is there.

【００１９】光ファイバに最終的に接触してこれに撚回
を与えるものは撚回付与球という一つの球だけであるか
ら、撚回方向のＳ，Ｚ間の転換の効率についてはこのも
のの慣性モーメントの大きさだけが関係するわけであ
り、これをたとえば中空球にして質量を下げるなどの対
策によっても十分に効率を上げることができるなどこの
発明の装置の構成そのものによる大きい効果がある。Since only one ball, a twisting ball, finally comes into contact with the optical fiber and gives twist thereto, the efficiency of the conversion between S and Z in the twist direction is determined by the inertia of this ball. Only the magnitude of the moment is involved. For example, the efficiency of the device can be sufficiently increased by taking a hollow sphere to reduce the mass, and the configuration of the device of the present invention has a great effect.

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

【図１】本発明の一実施例装置を示す側断面図である。FIG. 1 is a side sectional view showing an embodiment of the present invention.

【図２】図１を上方から見て一部要素を省略した平面図
である。FIG. 2 is a plan view in which some components are omitted when FIG. 1 is viewed from above.

【図３】撚回付与球の保持装置を示す斜視図である。FIG. 3 is a perspective view showing a holding device for a twist imparting ball.

【符号の説明】[Explanation of symbols]

１ 光ファイバ ２ 線抑え手段 ３ 回動フレーム ３１ 回動軸 ３２ 回動駆動突起部 ４ 撚回付与球保持装置 ４１ 保持アーム ４２ 球殻部 ４３ 支持球 ４４ 押圧ばね ５ 撚回付与球 ６Ａ，６Ｂ 駆動円板 ６３，６４ 歯車 ６８ 緩衝ばね ６７ 摩擦帯 ７ 切替え装置 ７１ 切替えレバ DESCRIPTION OF SYMBOLS 1 Optical fiber 2 Line suppression means 3 Rotation frame 31 Rotation axis 32 Rotation drive projection part 4 Twisting provision ball holding device 41 Holding arm 42 Ball shell part 43 Supporting ball 44 Pressing spring 5 Twisting provision ball 6A, 6B Drive Disk 63, 64 Gear 68 Buffer spring 67 Friction band 7 Switching device 71 Switching lever

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 線引きされて一次被覆をつけられ鉛直方
向に走行する光ファイバ（１）の一部区間を横方向にず
れないように抑制する工程と、前記区間内において前記
光ファイバ（１）にすべての方向に自由に回転できるよ
う保持された撚回付与球（５）を接触させる工程と、前
記撚回付与球（５）に前記光ファイバ（１）の走行方向
に直交する方向の正逆の回転を与える工程と、前記正逆
の回転を適宜周期をもって切り替える工程とを有する光
ファイバの製造方法。1. A step of suppressing a section of an optical fiber (1) drawn and coated with a primary coating and traveling in a vertical direction so as not to shift in a lateral direction, and the optical fiber (1) in the section. Contacting the twist imparting ball (5) held so as to be freely rotatable in all directions with the twist imparting ball (5), and contacting the twist imparting ball (5) in a direction perpendicular to the running direction of the optical fiber (1). A method for manufacturing an optical fiber, comprising: a step of giving a reverse rotation; and a step of switching the forward / reverse rotation at appropriate intervals. 【請求項２】 鉛直方向に走行する光ファイバ（１）の
上、下２個所に配置され、この区間における走行線の横
ずれを防止する線抑え手段（２）と、前記区間において
前記光ファイバ（１）に接触するよう配設され、球表面
に接触する複数の回転自在な支持球（４３）によってす
べての方向に回転自在に保持される撚回付与球（５）
と、前記光ファイバ（１）の走行方向に直交する水平面
内において所定の２つの位置間を回動可能に設けられる
回動フレーム（３）と、前記回動フレーム（３）上の前
記撚回付与球（５）の両側に配設され、前記平面内にお
いて互いに逆方向に回転駆動され、前記撚回付与球
（５）に接触することによってこれを回転駆動する円板
状の２枚の駆動円板（６Ａ，６Ｂ）と、前記回動フレー
ム（３）を適宜周期をもって前記２つの位置を交互に取
るように回動させ、これによって前記駆動円板（６Ａ，
６Ｂ）のいずれか一方を前記撚回付与球（５）の駆動位
置に移動させる切替え装置（７）とを有する光ファイバ
の製造装置。2. A line restraining means (2) which is disposed at two places above and below an optical fiber (1) running in a vertical direction and prevents lateral displacement of a running line in this section, and said optical fiber (1) in said section. Twisting ball (5) arranged to contact 1) and held rotatably in all directions by a plurality of rotatable support balls (43) contacting the ball surface.
A rotating frame (3) provided rotatably between two predetermined positions in a horizontal plane orthogonal to the traveling direction of the optical fiber (1); and the twisting on the rotating frame (3). Two disc-shaped drives which are arranged on both sides of the imparting ball (5), are rotationally driven in opposite directions in the plane, and rotate by contacting the twisting imparting ball (5). The disk (6A, 6B) and the rotating frame (3) are rotated so as to alternately take the two positions with an appropriate period, whereby the driving disk (6A, 6B) is rotated.
6B) a switching device (7) for moving any one of the twist imparting balls (5) to a driving position of the twist imparting ball (5).
JP2000158718A 2000-05-29 2000-05-29 Method and apparatus of manufacturing optical fiber Pending JP2001342033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000158718A JP2001342033A (en) 2000-05-29 2000-05-29 Method and apparatus of manufacturing optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000158718A JP2001342033A (en) 2000-05-29 2000-05-29 Method and apparatus of manufacturing optical fiber

Publications (1)

Publication Number Publication Date
JP2001342033A true JP2001342033A (en) 2001-12-11

Family

ID=18663147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000158718A Pending JP2001342033A (en) 2000-05-29 2000-05-29 Method and apparatus of manufacturing optical fiber

Country Status (1)

Country Link
JP (1) JP2001342033A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004078665A1 (en) * 2003-02-28 2004-09-16 Corning Incorporated Method and apparatus for impulse spinning of an optical fiber during drawing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004078665A1 (en) * 2003-02-28 2004-09-16 Corning Incorporated Method and apparatus for impulse spinning of an optical fiber during drawing
US7861556B2 (en) 2003-02-28 2011-01-04 Corning Incorporated Method and apparatus for impulsively spinning optical fiber

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