JPS61273507A - Forming method for terminal part of optical fiber made of plastic - Google Patents
Forming method for terminal part of optical fiber made of plasticInfo
- Publication number
- JPS61273507A JPS61273507A JP11854685A JP11854685A JPS61273507A JP S61273507 A JPS61273507 A JP S61273507A JP 11854685 A JP11854685 A JP 11854685A JP 11854685 A JP11854685 A JP 11854685A JP S61273507 A JPS61273507 A JP S61273507A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- support
- mold
- plastic
- ring
- 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.)
- Granted
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14131—Positioning or centering articles in the mould using positioning or centering means forming part of the insert
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、プラスチック製オプチカルファイバ（以下、
ＰＩ”と云う）の先端にプラグ等（以下、端末部と云う
）を成形する方法、詳しくは、端末部成形時の成形圧に
よってＰ ＋ ”が屈−曲したり、ｐ、ｏｆが端末部か
ら抜けることのない端末部の成形方法に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a plastic optical fiber (hereinafter referred to as
A method of molding a plug, etc. (hereinafter referred to as the terminal part) at the tip of the terminal part (hereinafter referred to as "PI"). This invention relates to a method of forming an end portion that does not come off.
〈従来の技術〉
ｐ、ｏｆは、発光源からの信号を所望の位置に伝送する
ために多く用いられている。ここで、光源とｐ、 ｏｆ
の光軸を一致させるためにｐ、ｏｆの先端に端末部が設
けられる。<Prior Art> P,of is often used to transmit a signal from a light emitting source to a desired position. Here, the light source and p, of
A terminal portion is provided at the tip of p and of to align the optical axes of the two.
この端末部の成形は、第３図に示す如（ｐ、ｏｆ３１の
端末を金型３２に装てんして刳掘部３３の両端を金型３
２に支持したのち、削掘部３３に注入口３８から樹脂組
成物３４を注入して成形される。The molding of this terminal part is as shown in FIG.
2, the resin composition 34 is injected into the excavated portion 33 from the injection port 38 and molded.
〈従来技術の問題点〉
このような方法で端末部を成形する際、Ｐ、ｏｆが細い
ので、樹脂組成物の注入力により金型のＰ。<Problems with the prior art> When molding the end portion using this method, since the P and of are thin, the injection force of the resin composition causes the P of the mold to become smaller.
ＯＥ支持部３５ 、３５’の間で屈曲３９し、発光源と
接続したときに光軸が合わなくなったり、特性の低下あ
るいは切断が生ずるなどの問題がある。The bending 39 occurs between the OE support portions 35 and 35', causing problems such as optical axes not being aligned when connected to a light emitting source, deterioration of characteristics, or disconnection.
く問題解決のための手段〉
本発明は、以上の問題点を解決することを目的とし、そ
の目的を達成するため、ｐ、ｏｆの端末部成形部分に少
なくとも一個の支持部材を嵌通し、該ｐ、ｏｆの端末を
該支持部材を谷型の刳掘部に嵌着して金型に装てんし、
然る後に樹脂組成物を金型の削掘部に注入するものであ
る。Means for Solving Problems> The present invention aims to solve the above problems, and in order to achieve the purpose, at least one support member is inserted into the molded portion of the terminal part of the p, of. The terminals of p and of are fitted into the hollow part of the valley shape and loaded into the mold,
After that, the resin composition is injected into the excavated part of the mold.
〈実施例〉
次に、本発明の一実施例を図面第１図、第２図及び第４
図と共に説明する。<Example> Next, an example of the present invention will be described with reference to drawings 1, 2, and 4.
This will be explained with figures.
まず、第１図、第２図に示すように、ｐ、ｏｆの端末に
支持りングλ、Ｒ／を支持枝１７をｐ、ｏｆの端末の方
向に反り返えらせ、且つ金型１２の支持リング嵌入溝１
６．１６’の位置に合うように嵌通し、該ｐ、ｏｆ １
１を支持リングλ、Ｒ／と共にその外周縁を溝１６，１
６Ｉ に嵌入して金型１２に装でなお、端末部を形成す
る樹脂組成物は熱硬化性、ミニラム、アルミニウム合金
等の金属シートを打抜き成形したものの外、端末部の成
形温度で軟化変形しない樹脂のモールドあるいは該樹脂
製シートから打抜き成形したものでもよい。First, as shown in FIGS. 1 and 2, a support ring λ, R/ is attached to the end of p, of, and the support branch 17 is bent back toward the end of p, of, and the mold 12 is Support ring insertion groove 1
6. Insert it so that it matches the 16' position, and the p, of 1
1 along with support rings λ, R/, its outer peripheral edge is grooved 16, 1
6I and placed in the mold 12, the resin composition forming the end portion is thermosetting, miniram, aluminum alloy, etc., and is not softened or deformed at the molding temperature, unless it is made by punching and molding a metal sheet. It may be formed by a resin mold or by punching from the resin sheet.
以上説明した如くＣの成形方法によれば、Ｐ。As explained above, according to the molding method of C, P.
ｏｆを支持リングＲ、Ｒ／の支持枝１７が支えて樹脂注
入時の圧力で屈曲しないようにし、且つ支持枝の先がｐ
、ｏｆの端末方向に反り返っているので、ｐ、 ｏｆに
引抜き力（矢印方向）が加えられたとき引抜き防止作用
をする。また、支持枝１７と支持枝１７との空間は樹脂
組成物１４の流通路となりようにしているが、この突出
部は、第４図に示す如く発光部４１に付設されたジャッ
ク４２のプラグ４３固定用掛止鉤４４に掛合する掛止片
４５の作用をするものである。The support branches 17 of the support rings R and R/ support the support rings R and R/ to prevent it from bending due to the pressure during resin injection, and the tips of the support branches are
, of are curved in the direction of the terminals, so that when a pull-out force (in the direction of the arrow) is applied to p and of, it acts to prevent pulling out. Further, the space between the support branches 17 is designed to serve as a flow path for the resin composition 14, and this protrusion is connected to the plug 43 of the jack 42 attached to the light emitting part 41, as shown in FIG. It functions as a latching piece 45 that engages with a fixing latching hook 44.
なお、上記実施例では支持リングＲ，Ｒ／の外周縁を突
出させているが、必ずしも突出させる必要はなく、適宜
突出させるか否かを一定すればよい。In the above embodiment, the outer peripheral edges of the support rings R, R/ are made to protrude, but they do not necessarily need to be made to protrude, and it is sufficient to determine whether or not they are made to protrude as appropriate.
また、上記実施例では、支持部材を支持リングＲ，Ｒ／
及び支持枝１７で構成したが、支持部材はこの形状に限
定されるものではない。Further, in the above embodiment, the supporting member is connected to the supporting rings R, R/
and the support branch 17, but the support member is not limited to this shape.
本文中の「嵌通」、「嵌着」及び「嵌入」の「嵌」は「
ぴったりはまる」の意味である。In the main text, "fit" in "fit through", "fitting", and "fitting" is "
It means "fits perfectly."
この発明は以上のように構成し、支持部材によって樹脂
組成物注入時のファイバの屈曲を阻止するようにしたの
で、端末部が光軸が曲がって成形されることがなく、発
光源に光軸を確実に合わせることができる。This invention is constructed as described above, and the support member prevents the fiber from bending when the resin composition is injected, so that the end portion is not molded with the optical axis bent, and the optical axis is connected to the light emitting source. can be matched reliably.
また、ファイバを支持枝で支持し、その枝をファイバ端
末方向に反り返えらすようにすれば、ファイバの金型か
らの抜は止め作用をなす効果がある。Further, if the fiber is supported by a support branch and the branch is bent back toward the end of the fiber, there is an effect of preventing the fiber from being removed from the mold.
さらに、支持部材の外周縁を端末部から突出させること
により、ジャックへの掛止片とすることができ、端末部
成形用金型の形状をンンプルにし、成形加工を容易にす
るなどの効果を発揮する。Furthermore, by making the outer peripheral edge of the support member protrude from the terminal part, it can be used as a hook for the jack, and the shape of the mold for molding the terminal part can be made slim, making the molding process easier. Demonstrate.
第１図は本発明の方法によるｐ、ｏｆ端末部成形時の金
型の縦断面図、第２図はｐ、ｏｆに支持リングを嵌通し
た状態の正面図、第３図は従来方法における金型の縦断
面図、第４図はプラグ、ジャックの掛合状態説明図であ
る。
１１．３１・・・プラスチック製オプチカルファイバ（
ｐ、ｏｆ）、１２．３２・・・金型、１３ 、３３・・
・刳掘部、１４ 、３４・・・樹脂組成物、艮、Ｒ／・
・・支持すング、１７・・・支持枝、４１・・・発光部
、４２・・・ジャック、４３・・・プラグ、４４・・・
掛止鉤、４５・・・掛止片。
特許出願人 タック電線株式会社同 代理人
鎌 １）文 ニ
手続補正書（酸）
昭和６１年 １月２７日Fig. 1 is a longitudinal cross-sectional view of the mold during molding of the p,of end portion by the method of the present invention, Fig. 2 is a front view of the mold with the support ring fitted through the p,of, and Fig. 3 is a longitudinal cross-sectional view of the mold when molding the p, of end portion by the method of the present invention. FIG. 4, which is a longitudinal sectional view of the mold, is an explanatory diagram of the engaged state of the plug and jack. 11.31...Plastic optical fiber (
p, of), 12.32...mold, 13, 33...
・Drilling part, 14, 34...Resin composition, R/・
...Supporting ring, 17...Supporting branch, 41...Light emitting part, 42...Jack, 43...Plug, 44...
Latch hook, 45...Latch piece. Patent applicant: TAC Electric Cable Co., Ltd. Agent
Sickle 1) Sentence 2 Procedural Amendment (Acid) January 27, 1986
Claims (3)
内刳掘部に挿通してその両端を金型に支持し、前記刳掘
部に樹脂組成物を注入してオプチカルファイバの端末部
を成形する方法において、前記刳掘部内のオプチカルフ
ァイバに支持部材を嵌通するとともに、その支持部材を
刳掘部内のオプチカルファイバーの屈曲を阻止し得る位
置に嵌着したのち、前記樹脂組成物を注入することを特
徴とするプラスチック製オプチカルファイバの端末部成
形方法。(1) A method of inserting the end of a plastic optical fiber into a hollowed part in a mold, supporting both ends in the mold, and injecting a resin composition into the hollowed part to mold the end of the optical fiber. In this step, a supporting member is inserted into the optical fiber in the hollowed part, and the supporting member is fitted in a position where bending of the optical fiber in the hollowed part can be prevented, and then the resin composition is injected. Characteristic method for molding the end portion of plastic optical fiber.
材が、リング及びその内周から求心的に伸びる支持枝と
からなり、リングを上記刳掘部に嵌着するとともに、支
持枝をオプチカルファイバに嵌通し、かつ支持枝をファ
イバの端末方向に反り返えらせることを特徴とするプラ
スチック製オプチカルファイバの端末部成形方法。(2) In claim (1), the support member includes a ring and a support branch extending centripetally from the inner periphery of the ring, and the support member fits the ring into the hollowed portion and the support branch extends from the ring in a centripetal manner. A method for forming an end portion of a plastic optical fiber, the method comprising fitting a support branch into an optical fiber and bending the support branch toward the end of the fiber.
て、上記刳掘部内面の溝に支持部材の外周縁を嵌入して
その外周縁を端末部外周面より突出させるようにしたこ
とを特徴とするプラスチック製オプチカルファイバの端
末部成形方法。(3) In claim (1) or (2), the outer circumferential edge of the support member is fitted into the groove on the inner surface of the hollow portion so that the outer circumferential edge protrudes from the outer circumferential surface of the terminal portion. A method for molding an end portion of a plastic optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11854685A JPS61273507A (en) | 1985-05-29 | 1985-05-29 | Forming method for terminal part of optical fiber made of plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11854685A JPS61273507A (en) | 1985-05-29 | 1985-05-29 | Forming method for terminal part of optical fiber made of plastic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61273507A true JPS61273507A (en) | 1986-12-03 |
| JPH0435728B2 JPH0435728B2 (en) | 1992-06-12 |
Family
ID=14739261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11854685A Granted JPS61273507A (en) | 1985-05-29 | 1985-05-29 | Forming method for terminal part of optical fiber made of plastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61273507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63169606A (en) * | 1987-01-08 | 1988-07-13 | Fujitsu Ltd | Manufacture of ferrule for optical fiber connection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611424A (en) * | 1979-07-09 | 1981-02-04 | Hitachi Chem Co Ltd | Production of optical fiber connector plug |
| JPS58102912A (en) * | 1981-12-16 | 1983-06-18 | Nippon Telegr & Teleph Corp <Ntt> | Production of optical connector |
-
1985
- 1985-05-29 JP JP11854685A patent/JPS61273507A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611424A (en) * | 1979-07-09 | 1981-02-04 | Hitachi Chem Co Ltd | Production of optical fiber connector plug |
| JPS58102912A (en) * | 1981-12-16 | 1983-06-18 | Nippon Telegr & Teleph Corp <Ntt> | Production of optical connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63169606A (en) * | 1987-01-08 | 1988-07-13 | Fujitsu Ltd | Manufacture of ferrule for optical fiber connection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435728B2 (en) | 1992-06-12 |
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