JP2507445B2 - Optical connector code manufacturing method - Google Patents
Optical connector code manufacturing methodInfo
- Publication number
- JP2507445B2 JP2507445B2 JP15727187A JP15727187A JP2507445B2 JP 2507445 B2 JP2507445 B2 JP 2507445B2 JP 15727187 A JP15727187 A JP 15727187A JP 15727187 A JP15727187 A JP 15727187A JP 2507445 B2 JP2507445 B2 JP 2507445B2
- Authority
- JP
- Japan
- Prior art keywords
- optical connector
- heat
- optical
- shrinkable tube
- plastic fiber
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims description 55
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000835 fiber Substances 0.000 claims description 27
- 229920003023 plastic Polymers 0.000 claims description 27
- 239000004033 plastic Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 239000011247 coating layer Substances 0.000 claims description 17
- 238000001746 injection moulding Methods 0.000 claims description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3865—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using moulding techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、コアもクラッドもプラスチックで構成され
たプラスチックファイバをもった光コードの端末部に光
コネクタを射出成形により一体に形成する光コネクタコ
ードの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an optical connector in which an optical connector is integrally formed by injection molding on an end portion of an optical cord having a plastic fiber whose core and clad are made of plastic. The present invention relates to a code manufacturing method.
（従来技術） プラスチックファイバをもつ光コードの端末部に光コ
ネクタを取付ける技術としては３つの方法がある。(Prior Art) There are three methods for attaching an optical connector to a terminal portion of an optical cord having a plastic fiber.
その第１の方法としては、第２図に示すように、まず
光コード（１）の端末部の外部被覆層（12）（図の点線
部分）をニッパー等の工具を用いて除去し、内部のプラ
スチックファイバ（11）を露出させる（同図イ）。つい
で上記露出したプラスチックファイバ（11）上に２液性
の接着剤（４）を塗布し（同図ロ）、この部分にフェル
ール（５）を挿入し、乾燥固着させてから先端を研磨す
る（同図ハ）。しかる後、上記フェルール（５）をプラ
グケース（６）に差し込んで完成する（同図ニ）。この
ような取付方法は工場の製造ラインでも、あるいは現場
作業でも採用されている。As the first method, as shown in FIG. 2, first, the outer coating layer (12) (dotted line portion in the figure) of the terminal portion of the optical cord (1) is removed by using a tool such as a nipper, and the inside is removed. Expose the plastic fiber (11) of (a in the figure). Then, a two-liquid adhesive (4) is applied onto the exposed plastic fiber (11) (Fig. 2B), a ferrule (5) is inserted into this portion, and the tip is polished after being dried and fixed ( (Figure c). Thereafter, the ferrule (5) is inserted into the plug case (6) to complete the process (FIG. 2D). Such a mounting method is used in a factory production line or on-site work.
第２の取付け方法は、第１の方法と同様に、光コード
（１）の端末部の外部被覆層（12）を除去して露出させ
たプラスチックファイバ（11）上にフェルール（５）を
かしめ工具を用いてかしめ固定し、先端を研磨又は鋭利
な刃物等で切断した後、プラグケース（６）に差し込む
方法である。The second attachment method is the same as the first method, in which the ferrule (5) is caulked on the exposed plastic fiber (11) by removing the outer coating layer (12) at the end of the optical cord (1). This is a method of crimping and fixing with a tool, polishing or cutting the tip with a sharp blade or the like, and then inserting the plug case (6).
第３の取付け方法は、前二者の方法と同様に、光コー
ド（１）の端末部の外部被覆層（12）を除去して露出さ
せたプラスチックファイバ（11）を、フェルール（５）
を組込んだプラグケース（６）に差し込み、ファイバク
ランパで光コード（１）の外部被覆層（12）を押圧して
固定する方法である。この場合プラスチックファイバを
挿入固定後、フェルール先端面でファイバの突出部を鋭
利に切断するか、あるいはあらかじめ先端部を鋭利に切
断したファイバをフェルール先端部で面位置にしてから
固定する必要がある。The third attachment method is similar to the former two methods, in that the plastic fiber (11) exposed by removing the outer coating layer (12) at the end of the optical cord (1) is attached to the ferrule (5).
This is a method in which the outer cover layer (12) of the optical cord (1) is pressed and fixed by a fiber clamper by inserting it into a plug case (6) incorporating the above. In this case, after inserting and fixing the plastic fiber, it is necessary to sharply cut the protruding portion of the fiber at the tip surface of the ferrule, or to fix the fiber whose tip portion has been sharply cut beforehand in the surface position at the ferrule tip portion.
しかし、上述した従来の光コネクタの取付け方法はい
ずれも手作業的であり、又接着剤の乾燥や研磨にかなり
の時間を要した。又第２及び第３の取付け方法では、作
業時間は短縮されているが、光コネクタとプラスチック
ファイバの固定強度（引張り等による強さ）等に問題が
あった。従って、これら従来の取付け方法では、光コネ
クタとしての性能及び品質を保持しながら、かつ安価
に、大量生産するのに適した方法であるとはいえなかっ
た。However, all of the above-described conventional methods of attaching an optical connector are manual, and it takes a considerable time to dry and polish the adhesive. In the second and third attachment methods, the working time is shortened, but there is a problem in the fixing strength (strength due to pulling or the like) between the optical connector and the plastic fiber. Therefore, these conventional attachment methods cannot be said to be suitable for mass production at low cost while maintaining the performance and quality of the optical connector.
この対策として、光コードの端末部の外部被覆層を除
去して露出させたプラスチックファイバ上に、直接光コ
ネクタ材料（プラスチック）を射出成形し、光コネクタ
を一体に成形加工する考えがある。しかし、プラスチッ
クファイバの材料（PMMA等）の耐熱温度はせいぜい110
〜140℃で、光コネクタ材料（例えばPBT等）の射出成形
温度の200〜250℃には到底耐えられず、実験すれば容易
にわかるように、プラスチックファイバが完全に溶融
し、光ファイバとしての性能はおろか、物理的な形状さ
えも維持し得ないという問題点がある。As a countermeasure against this, it is considered that the optical connector material (plastic) is directly injection-molded on the exposed plastic fiber by removing the outer coating layer at the end of the optical cord, and the optical connector is integrally molded. However, the heat-resistant temperature of plastic fiber materials (PMMA, etc.) is at most 110.
At ~ 140 ° C, it cannot withstand the injection molding temperature of 200 ~ 250 ° C for optical connector materials (such as PBT), and as you can easily see by experiment, the plastic fiber melts completely and There is a problem that not only the performance but also the physical shape cannot be maintained.
（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決した光コネクタ材料の射
出成形による光コネクタコードの製造方法を提供するも
ので、その特徴は、光コードの端末部の外部被覆層を除
去してプラスチックファイバを露出させ、露出したプラ
スチックファイバ及び外部被覆層の端末部上に熱収縮チ
ューブを挿入し、上記熱収縮チューブ上に光コネクタ材
料を射出成形してコネクタを一体に形成することにあ
る。(Means for Solving the Problems) The present invention provides a method for manufacturing an optical connector cord by injection molding of an optical connector material, which solves the above-mentioned problems. The coating layer is removed to expose the plastic fiber, a heat shrinkable tube is inserted over the exposed end portion of the plastic fiber and the outer coating layer, and an optical connector material is injection-molded on the heat shrinkable tube to integrate the connector. To form.
第１図は本発明の製造方法の具体例の手順を示す説明
図である。同図（イ）のように、光コード（１）の端末
部の外部被覆層（12）を除去して露出させたプラスチッ
クファイバ（11）上に熱収縮チューブ（２）を挿入す
る。この際、熱収縮チューブ（２）は同図（ロ）のよう
にプラスチックファイバ（11）及び外部被覆層（12）の
端末部を覆うように位置せしめる。上記熱収縮チューブ
（２）の機能は光コネクタ材料の熱が直接プラスチック
ファイバ（11）にかからぬよう熱的クッションを果たす
ことと、この材料を介してプラスチックファイバ（11）
と光コネクタ材料の接着性をよくすることにある。熱収
縮チューブ（２）の材料としてはポリエチレン系のもの
でよいが、特に後者の接着性の意味ではエチレン・酢酸
ビニル共重合体系のものがよく、これは熱で軟化したと
きに、それに接触した材料になじみ易く、又固化すると
接着性を帯びてくるからである。FIG. 1 is an explanatory view showing the procedure of a specific example of the manufacturing method of the present invention. As shown in (a) of the figure, the heat-shrinkable tube (2) is inserted onto the exposed plastic fiber (11) by removing the outer coating layer (12) at the end of the optical cord (1). At this time, the heat-shrinkable tube (2) is positioned so as to cover the ends of the plastic fiber (11) and the outer coating layer (12) as shown in FIG. The function of the heat-shrinkable tube (2) is to provide a thermal cushion so that the heat of the optical connector material is not directly applied to the plastic fiber (11), and through this material, the plastic fiber (11).
And to improve the adhesiveness of the optical connector material. The material of the heat-shrinkable tube (2) may be polyethylene-based, but especially in terms of adhesiveness of the latter, ethylene-vinyl acetate copolymer-based one is preferable, which comes into contact with it when softened by heat. This is because it is easy to adapt to the material, and when solidified, it becomes adhesive.
次に、第１図（ハ）のように、熱収縮性チューブ
（２）の上に光コネクタ材料を射出成形し、光コネクタ
（３）を一体に形成する。この場合、光コード（１）の
外部被覆層（12）は光コネクタ（３）の内部まで入るよ
うにし、又熱収縮チューブ（２）は一端は外部被覆層
（12）の端末部を覆うようにし、かつ、他端は光コネク
タ（３）のフェルール相当部（3a）より外側に突出する
ようにしておく。その後、温度が下がって光コネクタ
（３）及び熱収縮チューブ（２）が固化すると、図のX-
Xの位置で鋭利に切断し、光コネクタの端面特性を確立
する。Next, as shown in FIG. 1C, the optical connector material is injection-molded on the heat-shrinkable tube (2) to integrally form the optical connector (3). In this case, the outer coating layer (12) of the optical cord (1) is allowed to enter the inside of the optical connector (3), and one end of the heat shrinkable tube (2) covers the end portion of the outer coating layer (12). And the other end of the optical connector (3) protrudes outward from the ferrule-corresponding part (3a). After that, when the temperature drops and the optical connector (3) and the heat-shrinkable tube (2) solidify, X- in the figure
Sharply cut at the X position to establish the end face characteristics of the optical connector.
なお、熱収縮チューブ（２）は120〜140℃で収縮する
から、この用途には温度的に十分であり、又短時間なら
200〜250℃に耐えられるため、光コネクタ材料の射出成
形においても用を足すことができる。Since the heat shrinkable tube (2) shrinks at 120 to 140 ° C, it is sufficient for this purpose in terms of temperature, and if it is short time
Since it can withstand 200 to 250 ° C, it can be used for injection molding of optical connector materials.
（実施例） 光コードの端末部の外部被覆層を除去して露出したプ
ラスチックファイバ上に、エチレン・酢酸ビニル共重合
体系の熱収縮チューブをその一部が外部被覆層の端部上
に位置するように挿入し、これを射出成形用金型にセッ
トし、これに光コネクタ材料を射出成形した。(Example) A heat-shrinkable tube of ethylene / vinyl acetate copolymer system is partially located on the end of the outer coating layer on the exposed plastic fiber by removing the outer coating layer at the end of the optical cord. Was inserted, and this was set in a mold for injection molding, and an optical connector material was injection-molded therein.
光コードとしては、直径1.0mmφのPMMA上にポリ塩化
ビニルの被覆層を有する外径2.2mmφのものを用いた。
エチレン・酢酸ビニル共重合体系の熱収縮チューブは、
収縮前の内径が3.2mmφ、肉厚0.3mmで収縮後の内径が0.
6mmφ、肉厚0.9mmのものを用いた。又光コネクタ材料と
してはPBTを用い、射出温度210〜230℃、射出圧力400〜
430kg/cm2、射出時間４〜６秒で射出成形した。これに
よってまず熱収縮チューブが収縮温度以上になり、材料
圧力も加わって光コードのプラスチックファイバ上及び
外部被覆層上に密着する。この時の熱収縮チューブの温
度は少くとも120℃になっている。As the optical code, an optical code having an outer diameter of 2.2 mmφ having a polyvinyl chloride coating layer on a PMMA having a diameter of 1.0 mmφ was used.
The ethylene / vinyl acetate copolymer heat shrink tube
The inner diameter before shrinkage is 3.2 mmφ, the wall thickness is 0.3 mm, and the inner diameter after shrinkage is 0.
A 6 mmφ and a wall thickness of 0.9 mm was used. In addition, PBT is used as the optical connector material, the injection temperature is 210-230 ℃, the injection pressure is 400-
Injection molding was performed at 430 kg / cm 2 and an injection time of 4 to 6 seconds. As a result, the heat-shrinkable tube is first heated to a temperature higher than the shrinkage temperature, and a material pressure is also applied to the heat-shrinkable tube so that the heat-shrinkable tube is adhered onto the plastic fiber of the optical code and the outer coating layer. The temperature of the heat-shrink tube at this time is at least 120 ° C.
光コネクタ材料の射出が終了した時点、あるいはその
数秒〜10秒後には伝熱により熱収縮チューブ及び光コー
ドの温度はそれ以上の温度になるが、特にプラスチック
ファイバは熱収縮チューブの伝熱を抑える効果によっ
て、光学的、機械的特性が損われるこがない。When the injection of the optical connector material is completed, or a few seconds to 10 seconds after that, the temperature of the heat-shrinkable tube and the optical cord rises above that due to heat transfer, but the plastic fiber suppresses the heat transfer of the heat-shrinkable tube. The effect does not impair the optical and mechanical properties.
その後、約10秒間冷却を行ない、光コネクタ材料が固
まった後金型より取り出し、光コネクタのフェルール部
の先端の所定の位置で、熱収縮チューブ及びプラスチッ
クファイバを鏡面カットして光コネクタコードを得る。Then, cool for about 10 seconds, take out from the mold after the optical connector material hardens, and cut the heat-shrink tube and plastic fiber at a predetermined position at the tip of the ferrule part of the optical connector to obtain an optical connector cord .
（発明の効果） 上述したように、本発明の製造方法によれば、迅速、
かつ安定した品質の光コネクタコードの大量生産が可能
となる。(Effect of the Invention) As described above, according to the manufacturing method of the present invention,
It also enables mass production of stable quality optical connector cords.
光コードの調尺切断、被覆の除去、熱収縮チューブの
挿入作業等は、例えば電源コードにプラグを取付ける工
程と同様に、容易に自動化することが出来、製造コスト
も大幅に下げることが可能となる。Similar to the process of attaching the plug to the power cord, the length cutting of the optical cord, the removal of the coating, the insertion of the heat shrink tube, etc. can be easily automated, and the manufacturing cost can be greatly reduced. Become.
第１図（イ）〜（ハ）は本発明の製造方法の具体例の手
順を示す説明図である。 第２図（イ）〜（ニ）は従来の光コネクタ取付け方法の
一例の手順を示す説明図である。 １……光コード、11……プラスチックファイバ、12……
外部被覆層、２……熱収縮チューブ、３……光コネク
タ、3a……フェルール部。1 (a) to 1 (c) are explanatory views showing the procedure of a specific example of the manufacturing method of the present invention. FIGS. 2A to 2D are explanatory views showing the procedure of an example of a conventional optical connector mounting method. 1 …… Optical code, 11 …… Plastic fiber, 12 ……
Outer coating layer, 2 ... Heat shrink tube, 3 ... Optical connector, 3a ... Ferrule part.
Claims (3)
構成された光コードの端末部の外部被覆層を除去してプ
ラスチックファイバを露出させ、露出したプラスチック
ファイバ及び外部被覆層の端末部上に熱収縮チューブを
挿入し、上記熱収縮チューブ上に光コネクタ材料を射出
成形してコネクタを一体に形成することを特徴とする光
コネクタコードの製造方法。1. An outer coating layer on an end portion of an optical cord having an optical fiber made of a plastic fiber is removed to expose the plastic fiber, and a heat-shrinkable tube is provided on the exposed end portion of the plastic fiber and the outer coating layer. A method for manufacturing an optical connector cord, which comprises inserting the optical connector material onto the heat-shrinkable tube by injection molding to integrally form the connector.
ル共重合体系であることを特徴とする特許請求の範囲第
１項記載の光コネクタコードの製造方法。2. The method for producing an optical connector cord according to claim 1, wherein the heat-shrinkable tube material is an ethylene / vinyl acetate copolymer system.
光コードがはみ出すように光コネクタ材料を射出成形す
ることを特徴とする特許請求の範囲第１項記載の光コネ
クタコードの製造方法。3. The method of manufacturing an optical connector cord according to claim 1, wherein the optical connector material is injection-molded so that the heat shrinkable tube and the optical cord protrude from the tip of the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15727187A JP2507445B2 (en) | 1987-06-23 | 1987-06-23 | Optical connector code manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15727187A JP2507445B2 (en) | 1987-06-23 | 1987-06-23 | Optical connector code manufacturing method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH01906A JPH01906A (en) | 1989-01-05 |
| JPS64906A JPS64906A (en) | 1989-01-05 |
| JP2507445B2 true JP2507445B2 (en) | 1996-06-12 |
Family
ID=15646007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15727187A Expired - Lifetime JP2507445B2 (en) | 1987-06-23 | 1987-06-23 | Optical connector code manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507445B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001100065A (en) * | 1999-10-01 | 2001-04-13 | Ykk Corp | Optical fiber integrated ferrule and method of manufacturing the same |
| EP1179744A1 (en) * | 2000-08-07 | 2002-02-13 | Tyco Electronics Logistics AG | Ferrule for an optical fibre and method of fixing a ferrule to an optical fibre |
| DE102011114094A1 (en) | 2011-09-21 | 2013-03-21 | F. Holzer Gmbh | Stimulating and invigorating nasal spray and nose drops |
-
1987
- 1987-06-23 JP JP15727187A patent/JP2507445B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS64906A (en) | 1989-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR910006773B1 (en) | Plastic optical fiber cord withe ferrule | |
| JP5806305B2 (en) | Optical fiber connector and assembly method thereof | |
| US4135781A (en) | Optical fiber termination | |
| US5287426A (en) | Methods for making optical fiber connectors | |
| US4404010A (en) | Replacing optical fibre sheathing after fusion splicing | |
| JPS5887518A (en) | Connector for optical fiber material | |
| JP2002082257A (en) | Optical connectors and optical connector parts | |
| JP4724889B2 (en) | Crimping terminal with heat-shrinkable tube, jig for manufacturing the crimping terminal, and manufacturing method | |
| JP2987247B2 (en) | Optical fiber connection device | |
| US4740052A (en) | Connector for optical fiber | |
| JP2507445B2 (en) | Optical connector code manufacturing method | |
| JP2001004874A (en) | Optical fiber ferrule and method for fixing ferrule onto optical fiber | |
| JPH01906A (en) | Manufacturing method of optical connector cord | |
| JPS58108507A (en) | Production of optical fiber connector | |
| US4762580A (en) | Optical fibre splice reinstatement sheathing | |
| JP2825269B2 (en) | Ferrule for optical connector and method of manufacturing the same | |
| CN205301625U (en) | Hot melt type quick connector | |
| JP2520896B2 (en) | Method of joining optical fiber and fiber in optical connector | |
| JP3332984B2 (en) | End processing method of optical fiber core wire | |
| JP3305036B2 (en) | Optical fiber cord with base and manufacturing method thereof | |
| JPH0151807B2 (en) | ||
| JP3262052B2 (en) | Connection method between optical fiber cord and ferrule | |
| WO2002091054A1 (en) | Package for optical connector component and method for manufacturing the same | |
| JPH0282206A (en) | Optical fiber cord with connector | |
| JPS5919323B2 (en) | How to connect optical fiber cable |