JPH0342404Y2 - - Google Patents
Info
- Publication number
- JPH0342404Y2 JPH0342404Y2 JP1982011050U JP1105082U JPH0342404Y2 JP H0342404 Y2 JPH0342404 Y2 JP H0342404Y2 JP 1982011050 U JP1982011050 U JP 1982011050U JP 1105082 U JP1105082 U JP 1105082U JP H0342404 Y2 JPH0342404 Y2 JP H0342404Y2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- ferrule
- insertion hole
- connector
- intermediate body
- 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
Links
- 239000013307 optical fiber Substances 0.000 claims description 35
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 239000011247 coating layer Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Description
【考案の詳細な説明】
本考案は製造時の作業性を高めてモールド成形
できるようにした光フアイバーコネクタに関す
る。[Detailed Description of the Invention] The present invention relates to an optical fiber connector that can be molded with improved workability during manufacturing.
光フアイバーコネクタとして、本出願人が昭和
57年１月13日付の実用新案登録願において提案し
たものがあり、光フアイバーをフエルールに挿通
したとき該フエルールから光フアイバー被覆にか
けて設けられたスリーブが保護部をモールド成形
するときのモールド圧が光フアイバーにかからな
いようにして光フアイバーの断線を防ぎ、それに
よつてモールド成形できるようにしている。 As an optical fiber connector, the applicant
There is a proposal in a utility model registration application dated January 13, 1957, in which when an optical fiber is inserted into a ferrule, a sleeve provided from the ferrule to the optical fiber coating will cause the mold pressure when molding the protective part to be This prevents the optical fiber from breaking by preventing it from touching the fiber, thereby making it possible to perform molding.
しかし、この光フアイバーコネクタによれば、
前記スリーブを介してフエルールに光フアイバー
を挿通しなければならず、また、光フアイバーケ
ーブルの抗張紐を該スリーブ内で接着剤によつて
接着固定する作業が比較的面倒で作業性の向上に
限度がある。 However, according to this optical fiber connector,
The optical fiber must be inserted into the ferrule through the sleeve, and the work of gluing and fixing the tensile string of the optical fiber cable within the sleeve with adhesive is relatively troublesome, which improves work efficiency. There are limits.
本考案は、上記に鑑みてなされたものであり、
製造時の作業性を高めてモールド成形できるよう
にするため、中心の挿通孔の長さに略等しい長さ
の光フアイバーを被覆層から露出させて前記挿通
孔に挿通し、前記挿通孔の始端および前記被覆層
の先端に操着剤を施して前記光フアイバーを露出
しない状態で保持するフエルールと、前記フエル
ールから光フアイバー外被にかけて設けられ、前
記光フアイバーの被覆層および抗張紐を埋設して
固定するように熱硬化性樹脂で一体成型され、後
端外周に凹凸を設けたコネクタ中間体と、前記コ
ネクタ中間体の少なくとも前記凹凸から前記光フ
アイバー外被にかけて合成樹脂の一体成型によつ
て形成されたコード保護部より成る光フアイバー
コネクタを提供するものである。 This invention was made in view of the above,
In order to improve workability during manufacturing and enable mold forming, an optical fiber having a length approximately equal to the length of the center insertion hole is exposed from the coating layer and inserted into the insertion hole, and the starting end of the insertion hole is and a ferrule that holds the optical fiber in a state where it is not exposed by applying a steering agent to the tip of the coating layer, and a ferrule that is provided from the ferrule to the outer sheath of the optical fiber, and in which the coating layer and the tensile string of the optical fiber are embedded. A connector intermediate body is integrally molded with a thermosetting resin so as to be fixed, and has an unevenness on the outer periphery of the rear end, and a synthetic resin is integrally molded from at least the irregularities of the connector intermediate body to the optical fiber outer sheath. The present invention provides an optical fiber connector comprising a formed cord protector.
以下本考案による光フアイバーコネクタを詳細
に説明する。 The optical fiber connector according to the present invention will be explained in detail below.
第１図および第２図は本考案の一実施例を示
し、第１図は一次モールドが施された状態を示
し、第２図は二次モールドが施されて完成した状
態を示している。第１図において、光フアイバー
ケーブルの光フアイバー被覆層４および外被６を
順次段剥ぎして光フアイバー２をフエルール１の
挿通孔１ａの長さに等しい長さだけ露出するとと
もに光フアイバー被覆層４を一次モールドによつ
てコネクタ中間体７を設けるのに必要な長さだけ
露出する（光フアイバー被覆層４の外周に抗張紐
５が表われる）。フエルール１はセラミツクまた
は金属が構成され、挿通孔始端のテーパー部１ｂ
から接着剤を塗布された光フアイバー２を挿入さ
れ（光フアイバー被覆層４の先端がテーパー部１
ｂに接触したとき光フアイバー２の先端がフエル
ール１の後端に達する）、挿入完了後にテーパー
部１ｂを接着剤３で固める（光フアイバー２の露
出部を埋入する）。次に、トランスフアーモール
ド法の低圧封入成型（エンキヤツプシユーレーシ
ヨン）によつてフエルール１から外被６にかけ
て、収縮率が極めて小さい、例えば、0.3％〜0.5
％の熱硬化性樹脂（例えば、日東電工株式会社に
よつて製造販売されているMP−3000で、エポキ
シ樹脂に溶融性シリカ（SiO2）を充填したもの）
を使用してコネクタ中間体７が形成される（抗張
紐５が埋設して固定される）。該コネクタ中間体
７は係合度を大にするフエルール１の凹部１ｃと
係合し、また、接続用ガイド突起７ａを有した段
部７ｂと、後述するコード保護部８（第２図）の
係合度を大にする凹凸部７ｃを有している。第２
図においては、コネクタ中間体７から外被６にか
けて施された塩化ビニル樹脂のコード保護部８
（補強用凹凸部８ａを外周に有する）と、コネク
タ中間体７の段部７ｂに回転自在に設けられた袋
ナツト９（ガラス入りPBT樹脂あるいはポリア
ミド（ナイロン）樹脂で構成され、内周にねじ９
ａを有する）が示されている。 FIGS. 1 and 2 show an embodiment of the present invention, with FIG. 1 showing a state in which a primary mold has been applied, and FIG. 2 showing a completed state in which a secondary mold has been applied. In FIG. 1, the optical fiber coating layer 4 and the outer sheath 6 of the optical fiber cable are sequentially peeled off to expose the optical fiber 2 by a length equal to the length of the insertion hole 1a of the ferrule 1, and the optical fiber coating layer 4 is exposed by the primary molding to a length necessary to provide the connector intermediate body 7 (the tensile string 5 appears on the outer periphery of the optical fiber coating layer 4). The ferrule 1 is made of ceramic or metal, and has a tapered portion 1b at the starting end of the insertion hole.
The optical fiber 2 coated with adhesive is inserted into the tapered part 1 (the tip of the optical fiber coating layer 4
The tip of the optical fiber 2 reaches the rear end of the ferrule 1 when it comes into contact with the ferrule 1), and after the insertion is completed, the tapered part 1b is hardened with the adhesive 3 (the exposed part of the optical fiber 2 is embedded). Next, the shrinkage rate is extremely small, for example, 0.3% to 0.5, from the ferrule 1 to the outer jacket 6 by low-pressure encapsulation using the transfer molding method.
% thermosetting resin (for example, MP-3000 manufactured and sold by Nitto Denko Corporation, which is an epoxy resin filled with fusible silica (SiO 2 ))
The connector intermediate body 7 is formed using (the tensile string 5 is embedded and fixed). The connector intermediate body 7 engages with a recess 1c of the ferrule 1 to increase the degree of engagement, and also engages a stepped portion 7b having a connecting guide protrusion 7a with a cord protection portion 8 (FIG. 2) to be described later. It has an uneven portion 7c that increases the degree of roughness. Second
In the figure, a cord protection part 8 made of vinyl chloride resin is applied from the connector intermediate body 7 to the outer cover 6.
(having a reinforcing uneven part 8a on the outer periphery), and a cap nut 9 (made of glass-filled PBT resin or polyamide (nylon) resin, with a screw on the inner periphery) rotatably provided on the stepped part 7b of the connector intermediate body 7. 9
a) is shown.
以上の構成において、第２図の左側に図示する
雌型コネクタの保持筒１０のスリーブ１１（セラ
ミツクまたは金属）の左右よりフエルール１を挿
入して突き合せ（右側の部分だけ図示している）、
接続用ガイド突起７ａを保持筒１０のガイド溝１
０ｂに嵌合させる。この状態で袋ナツト９を回転
させることにより、そのねじ９ａと保持筒１０の
外周ねじ１０ａをねじ結合し、接続を完了する
（尚、１２はアダプタ部で取付用ねじ孔１２ａを
有している）。 In the above configuration, the ferrule 1 is inserted from the left and right sides of the sleeve 11 (ceramic or metal) of the holding cylinder 10 of the female connector shown on the left side of FIG.
The connecting guide protrusion 7a is inserted into the guide groove 1 of the holding cylinder 10.
0b. By rotating the cap nut 9 in this state, the screw 9a and the outer circumferential screw 10a of the holding cylinder 10 are screwed together, completing the connection (note that 12 is an adapter part that has a mounting screw hole 12a). ).
以上説明した通り、本考案による光フアイバー
コネクタによれば、フエルール挿通孔に略等しい
長さだけ露出した光フアイバーをフエルールに挿
通した後、その挿通孔始端を接着剤で封塞した状
態でフエルールから光フアイバー外被にかけてコ
ネクタ中間体を施すことにより光フアイバーを封
入するとともに光フアイバー用抗張紐を埋設固定
し、その外周にコード保護部を形成した構成を有
するため、製造時の作業性が改善され、金型によ
る一体成型作業の適用が可能になり、かつ、断線
等のない信頼性の高い製品が得られる。 As explained above, according to the optical fiber connector according to the present invention, an optical fiber exposed to a length approximately equal to the ferrule insertion hole is inserted into the ferrule, and then the starting end of the insertion hole is sealed with adhesive and then removed from the ferrule. The optical fiber is encapsulated by applying a connector intermediate body over the optical fiber outer sheath, and the tensile string for the optical fiber is embedded and fixed, and a cord protection part is formed around the outer periphery, improving workability during manufacturing. This makes it possible to apply integral molding work using a mold, and it is possible to obtain a highly reliable product without wire breakage.
第１図および第２図は本考案の一実施例を示
し、第１図は一次モールド後の状態を、第２図は
二次モールド後の状態を示す断面図。
符号の説明、１……フエルール、１ａ……挿通
孔、１ｂ……テーパー部、１ｃ……凹部、２……
光フアイバー、３……接着剤封塞部、４……光フ
アイバー被覆層、５……抗張紐、６……外被、７
……コネクタ中間体、７ａ……接続用ガイド、７
ｂ……段部、７ｃ……凹凸部、８……コード保護
部、８ａ……補強用凹凸部、９……袋ナツト、９
ａ……ねじ、１０……保持筒、１０ａ……ねじ、
１０ｂ……ガイド溝、１１……スリーブ、１２…
…アダブタ部、１２ａ……取付用ねじ孔。
FIGS. 1 and 2 show an embodiment of the present invention, with FIG. 1 being a cross-sectional view showing the state after primary molding, and FIG. 2 showing the state after secondary molding. Explanation of symbols, 1...Ferrule, 1a...Insertion hole, 1b...Tapered part, 1c...Recessed part, 2...
Optical fiber, 3... Adhesive sealing part, 4... Optical fiber coating layer, 5... Tensile string, 6... Outer cover, 7
... Connector intermediate body, 7a ... Connection guide, 7
b... Stepped portion, 7c... Uneven part, 8... Cord protection part, 8a... Reinforcement uneven part, 9... Cap nut, 9
a...screw, 10...holding cylinder, 10a...screw,
10b...Guide groove, 11...Sleeve, 12...
...Adapter part, 12a...Screw hole for mounting.
Claims (1)
バーを被覆層から露出させて前記挿通孔に挿通
し、前記挿通孔の始端および前記被覆層の先端に
接着剤を施して前記光フアイバーを露出しない状
態で保持するフエルールと、 前記フエルールから光フアイバー外被にかけて
設けられ、前記光フイアバーの被覆層および抗張
紐を埋設して固定するように熱硬化性樹脂で一体
成型され、後端外周に凹凸を設けたコネクタ中間
体と、 前記コネクタ中間体の少なくとも前記凹凸から
前記光フアイバー外被にかけて合成樹脂の一体成
型によつて形成されたコード保護部より成ること
を特徴とする光フアイバーコネクタ。[Claims for Utility Model Registration] An optical fiber having a length substantially equal to the length of the central insertion hole is exposed from the coating layer, inserted into the insertion hole, and bonded to the starting end of the insertion hole and the tip of the coating layer. a ferrule that holds the optical fiber in an unexposed state by applying a thermosetting resin; a connector intermediate body integrally molded with a rear end and having unevenness on the outer periphery of the rear end; and a cord protection part formed by integrally molding a synthetic resin from at least the unevenness of the connector intermediate body to the optical fiber outer sheath. Optical fiber connector featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1105082U JPS58115712U (en) | 1982-01-29 | 1982-01-29 | fiber optic connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1105082U JPS58115712U (en) | 1982-01-29 | 1982-01-29 | fiber optic connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58115712U JPS58115712U (en) | 1983-08-08 |
| JPH0342404Y2 true JPH0342404Y2 (en) | 1991-09-05 |
Family
ID=30023671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1105082U Granted JPS58115712U (en) | 1982-01-29 | 1982-01-29 | fiber optic connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58115712U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842966Y2 (en) * | 1978-12-01 | 1983-09-29 | 富士通株式会社 | optical connector |
-
1982
- 1982-01-29 JP JP1105082U patent/JPS58115712U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58115712U (en) | 1983-08-08 |
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