JPH0462645B2 - - Google Patents
Info
- Publication number
- JPH0462645B2 JPH0462645B2 JP62141783A JP14178387A JPH0462645B2 JP H0462645 B2 JPH0462645 B2 JP H0462645B2 JP 62141783 A JP62141783 A JP 62141783A JP 14178387 A JP14178387 A JP 14178387A JP H0462645 B2 JPH0462645 B2 JP H0462645B2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- exposed
- fitting hole
- length
- ferrule
- 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
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、光フアイバケーブルを端末加工後
光コネクタを成端する光フアイバケーブルのフエ
ルール組立方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for assembling a ferrule of an optical fiber cable, which terminates an optical connector after processing the end of the optical fiber cable.
光フアイバケーブルの端末加工をする場合、そ
の端末の光ケーブル外皮、ナイロン被覆、光フア
イバ等を適当長さに切断し、この端末に光軸を完
全に一致させ接続損失を最小に保持するため、一
般にフエルールと呼ばれる接続具が挿入され、接
着剤、あるいはカシメなどの機械的方法により固
定され、光コネクタとして成端（組み付け）され
ている。
When processing the terminal of an optical fiber cable, the optical cable sheath, nylon sheath, optical fiber, etc. of the terminal are cut to an appropriate length, and the optical axis is perfectly aligned with the terminal to keep connection loss to a minimum. A connecting tool called a ferrule is inserted and fixed using an adhesive or a mechanical method such as caulking, and then terminated (assembled) as an optical connector.
従来の端末構造は大量に生産される所定寸法の
フエルールの長さに合せて人手によりケーブル端
末を加工してフエルールに挿入固定されていた。 In conventional terminal structures, cable terminals are manually processed to match the length of ferrules of predetermined dimensions that are mass-produced, and then inserted and fixed into the ferrules.
しかしながら、かゝる従来の光フアイバケーブ
ルの端末構造では、フエルール内部のナイロン被
覆嵌合部の孔長よりもナイロン被覆を剥ぎ取つて
露出した光フアイバの方が長いため、フエルール
先端の光フアイバ挿通孔に光フアイバ先端を挿入
しようとすると、光フアイバ先端を前記挿通孔に
対して正確に軸心を合せて位置決めをして挿入し
なければならず、従来の人手による挿入作業では
困難でかつ時間がかゝり、また自動機により挿入
するとしても光フアイバに可撓性があるためやは
り位置決めが難しく、挿入する際の成功率が低
い。
However, in such a conventional optical fiber cable terminal structure, the optical fiber exposed by peeling off the nylon coating is longer than the hole length of the nylon coating fitting part inside the ferrule, so it is difficult to insert the optical fiber at the tip of the ferrule. When attempting to insert the tip of an optical fiber into a hole, the tip of the optical fiber must be aligned and positioned accurately with respect to the insertion hole, which is difficult and time-consuming with conventional manual insertion. Furthermore, even if the optical fiber is inserted using an automatic machine, the flexibility of the optical fiber makes positioning difficult and the success rate during insertion is low.
さらに、フエルール内部の光ケーブル外皮との
嵌合部孔長よりも、外皮を剥いで残るナイロン被
覆部長さの方が短いため、光フアイバ先端は光フ
アイバ挿通孔に挿入できたとしても、光ケーブル
の外皮端がフエルール外端に引掛り、それ以上フ
エルール内部に挿入できなくなるため、作業時間
がかゝり、また自動機により挿入する場合はこの
ような状態で無理に挿入すると座屈折れが生じる
ことがあり、やはり挿入成功率が低いという問題
があつた。 Furthermore, since the length of the nylon coating that remains after peeling off the outer sheath is shorter than the length of the hole in the fitting part with the optical cable outer sheath inside the ferrule, even if the optical fiber tip can be inserted into the optical fiber insertion hole, the optical fiber outer sheath The end gets caught on the outer edge of the ferrule and cannot be inserted any further into the ferrule, which takes time. Also, when inserting using an automatic machine, if you forcefully insert the ferrule in this condition, buckling and bending may occur. However, the problem was that the insertion success rate was low.
この発明は、上述したような光フアイバケーブ
ル端末にフエルールを組立てる方法における問題
点に留意して、光ケーブル端末加工長さをこれに
挿入されるフエルール内部の挿入孔長さに対して
合理的な寸法に仕上げて、人手であれ自動機であ
り、必らず正確に容易に挿入し、仕上げのできる
光フアイバケーブルのフエルール組立方法を提供
することを目的とする。 This invention takes into consideration the problems in the method of assembling a ferrule to an optical fiber cable terminal as described above, and sets the optical cable terminal processing length to a reasonable size with respect to the length of the insertion hole inside the ferrule to be inserted into the optical fiber cable terminal. To provide a method for assembling a ferrule of an optical fiber cable, which can be accurately and easily inserted and finished by hand or by an automatic machine.
上記の問題点を解決する手段としてこの発明
は、光フアイバケーブル端末を切断加工して外皮
部、ナイロン被覆部、及び光フアイバ露出部を順
次露出させたものを外皮部嵌合孔、ナイロン被覆
部嵌合孔、及び光フアイバ露出部挿通孔の３つの
異なる内径と長さを有する円筒部から成るフエル
ールに挿入して組立てる際に、
外皮部嵌合孔の長さl2よりもナイロン被覆部の
長さL2を長くしかつナイロン被覆部嵌合孔の長
さl1よりも光フアイバ露出部の長さL1を短かく加
工し、
光フアイバ露出部を外皮部嵌合孔に挿入後まず
ナイロン被覆部をナイロン被覆部嵌合孔に挿入
し、
その後外皮部の端末を外皮部嵌合孔へ挿入する
と共に光フアイバ露出部の先端を光フアイバ露出
部挿通孔に挿入し、
フエルール先端より突出した光フアイバ露出部
を最後に切断して仕上げることから成る光フアイ
バケーブルのフエルール組立方法としたのであ
る。
As a means to solve the above-mentioned problems, the present invention has disclosed that the end of an optical fiber cable is cut to expose the outer skin part, the nylon sheathing part, and the exposed optical fiber part in sequence, and then the outer sheath part fitting hole and the nylon sheathing part are connected to each other. When assembling the fitting hole and the optical fiber exposed part insertion hole into a ferrule consisting of a cylindrical part with three different inner diameters and lengths, The length L 2 is made longer and the length L 1 of the exposed part of the optical fiber is made shorter than the length L 1 of the nylon covering part fitting hole. After inserting the exposed part of the optical fiber into the fitting hole of the outer skin part, first Insert the nylon sheath into the nylon sheath fitting hole, then insert the end of the outer sheath into the sheath fitting hole, and insert the tip of the exposed optical fiber into the exposed optical fiber insertion hole so that it protrudes from the tip of the ferrule. The method for assembling the ferrule of an optical fiber cable consists of finally cutting and finishing the exposed portion of the optical fiber.
光フアイバケーブルは、一般にコアとなる光フ
アイバ、その外周にシリコン薄膜をコーテイング
してこれを被覆するナイロン被覆層、さらにその
外側に保護繊維材を挟んで外皮材が被せられて形
成されている。
Optical fiber cables are generally made up of an optical fiber as a core, a silicon thin film coated around the outer periphery of the optical fiber, a nylon coating layer covering the optical fiber, and a protective fiber material sandwiched between the optical fibers and an outer skin material.
かかる光フアイバケーブルの端末を他のケーブ
ルに接続する場合、接続部における接続損失等を
最小限に抑制するためにケーブル端末にはフエル
ールが挿入固定される。 When connecting the terminal of such an optical fiber cable to another cable, a ferrule is inserted and fixed to the cable terminal in order to minimize connection loss and the like at the connecting portion.
この発明によるフエルール組立方法では、ナイ
ロン被覆部長さL2は外皮部嵌合孔長さl2より長
く、光フアイバ露出部長さL1はナイロン被覆部
嵌合孔長さより短いから、光フアイバ露出部をそ
の挿通孔に挿入する際ナイロン被覆部の下端肩部
を外皮嵌合孔とナイロン被覆部嵌合孔との接続部
で案内しつつ挿入することにより光フアイバ露出
部は軸心が自動的に調心された状態で挿入され
る。さらに進んで挿入されると、光フアイバケー
ブルはその外皮部の下端肩部で外皮部嵌合孔に対
して調心しつつ挿入されるから、端末部の軸心が
確実にフエルールの軸心に対して調心され、容易
に挿入できるようになる。 In the ferrule assembly method according to the present invention, the length L 2 of the nylon coating part is longer than the length l 2 of the fitting hole of the outer skin part, and the length L 1 of the exposed optical fiber part is shorter than the length of the fitting hole of the nylon coating part, so the exposed part of the optical fiber When inserting the optical fiber into the insertion hole, the lower end shoulder of the nylon coating is guided by the connection between the outer skin fitting hole and the nylon coating fitting hole, so that the axis of the exposed optical fiber automatically aligns. It is inserted in an aligned state. When the optical fiber cable is inserted further, the lower end shoulder of the outer sheath is aligned with the outer sheath fitting hole, so the axis of the end part is reliably aligned with the axis of the ferrule. It is aligned with the body and can be easily inserted.
こうして光フアイバケーブル端末を製造する作
業においては、極めて作業時間が短縮され、しか
も正確に製品を傷付けることなく製造される。 In this way, the working time for manufacturing optical fiber cable terminals is extremely shortened, and the products can be manufactured accurately without damaging them.
以下この発明の実施例について添付図を参照し
て詳細に説明する。
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
第１図はこの発明によるフエルール組立方法を
用いて成端される光フアイバケーブルの端末部の
断面図であり、この図ではフエルール１０を途中
まで挿入した状態で端末部細部の寸法関係を併せ
て示している。フエルール１０を完全に装着した
状態を第２図に示す。 FIG. 1 is a cross-sectional view of the terminal part of an optical fiber cable that is terminated using the ferrule assembly method according to the present invention, and this figure shows the detailed dimensional relationship of the terminal part with the ferrule 10 inserted halfway. It shows. FIG. 2 shows the state in which the ferrule 10 is completely installed.
よく知られているようにフエルール１０は、上
記端末部を挿入して光軸を正確に一致させ、接続
損失を最小限に抑制して光ケーブルを接続させる
のに用いられるが、このフエルール１０はその内
部に所定長さの外皮部嵌合孔１１（長さl2）、ナ
イロン被覆部嵌合孔１２（長さl1）、光フアイバ
露出部挿通孔１３の３つの孔が設けられている。 As is well known, the ferrule 10 is used to connect optical cables by inserting the terminal portion, aligning the optical axes accurately, and minimizing connection loss. Three holes of a predetermined length are provided inside: an outer skin part fitting hole 11 (length l 2 ), a nylon covering part fitting hole 12 (length l 1 ), and an optical fiber exposed part insertion hole 13 .
かゝる３つの孔を有するフエルールの内部形状
に適合するように光フアイバケーブル端末部を段
状に切断加工して第１図のように適宜長さの外皮
部１の下方にそれぞれ所定長さのナイロン被覆部
２（長さL2）、光フアイバ露出部３（長さL1）を
形成する。この場合、光フアイバ露出部３の長さ
はナイロン被覆部嵌合孔の長さより短かく、また
ナイロン被覆部２の長さは外皮部嵌合孔の長さよ
り長い。なお、保護繊維材４はフエルール挿入時
に邪魔にならない程度の短い長さに切断する。上
記長さ関係を式で示すと、
L2＞l2
L1＜l1
となる。 The end portion of the optical fiber cable is cut into steps to fit the internal shape of the ferrule having three holes, and a predetermined length is placed under the outer skin portion 1 of an appropriate length as shown in FIG. A nylon covering portion 2 (length L 2 ) and an optical fiber exposed portion 3 (length L 1 ) are formed. In this case, the length of the exposed optical fiber portion 3 is shorter than the length of the nylon covering portion fitting hole, and the length of the nylon covering portion 2 is longer than the length of the outer skin portion fitting hole. Note that the protective fiber material 4 is cut to a short length so as not to get in the way when inserting the ferrule. When the above length relationship is expressed by a formula, L 2 > l 2 L 1 < l 1 .
一方、上記フエルールの嵌合孔、挿通孔の径は
ケーブルの外皮部、ナイロン被覆部、光フアイバ
露出部をそれぞれ密着収容できる程のわずかな隙
間を有するものが選択される。さらに、外皮部嵌
合孔１１の下端１４は、テーパ状に形成されてナ
イロン被覆部嵌合孔１２に続き、同様に前記嵌合
孔１２の下端１５もテーパ状に形成されて光フア
イバ露出部挿通孔１３に接続されている。 On the other hand, the diameters of the fitting hole and the insertion hole of the ferrule are selected so as to have a small enough gap to closely accommodate the outer skin portion of the cable, the nylon covering portion, and the exposed portion of the optical fiber. Further, the lower end 14 of the outer skin part fitting hole 11 is formed in a tapered shape and continues to the nylon covering part fitting hole 12, and the lower end 15 of the said fitting hole 12 is also formed in a tapered shape so as to expose the optical fiber. It is connected to the insertion hole 13.
フエルール１０をケーブル端末に挿入し、接着
剤、カシメなどの機械的な方法で全体を固定する
と完成し、第２図のようなものとなる。 When the ferrule 10 is inserted into the cable terminal and the entire structure is fixed using adhesive, caulking, or other mechanical methods, the structure is completed, as shown in FIG. 2.
以上のように構成したこの実施例の作用を次に
説明する。 The operation of this embodiment configured as above will be explained next.
光フアイバケーブル１′の端末部は上述したよ
うに段状に切断されて、光フアイバ露出部３、ナ
イロン被覆部２が所定の長さL1、L2に形成され
る。光フアイバ露出部３の径より外皮部嵌合孔１
１、ナイロン被覆部嵌合孔１２の径の方がかなり
大きいから、光フアイバ露出部３は上記嵌合孔１
１，１２内に比較的容易に挿通させることができ
る。さらに、光フアイバ露出部３を光フアイバ露
出部挿通孔１３に挿通させようとすると、光フア
イバ露出部３の長さL1はナイロン被覆部嵌合孔
１２の長さl1より短かいから、まずナイロン被覆
部２の下端肩部が外皮部嵌合孔１１の下端１４の
テーパ状部に当接してナイロン被覆部２の軸心、
即ち光フアイバ露出部の軸心をフエルール１０の
軸心、即ちナイロン被覆部嵌合孔１２及び光フア
イバ露出部挿通孔１３の軸心に対して自動調心し
ながら挿通させることになる。光フアイバ露出部
３の長さを適当長さに形成しておけば、軸心のず
れはわずかに抑えることができるから、上記自動
調心作用によつて光フアイバ露出部３をその挿通
孔１３に容易に挿通させることができる。 The end portion of the optical fiber cable 1' is cut into steps as described above, and the exposed optical fiber portion 3 and the nylon coated portion 2 are formed into predetermined lengths L 1 and L 2 . The outer skin fitting hole 1 is smaller than the diameter of the optical fiber exposed portion 3.
1. Since the diameter of the nylon-coated part fitting hole 12 is considerably larger, the optical fiber exposed part 3 is larger than the above-mentioned fitting hole 1.
1 and 12 relatively easily. Furthermore, when trying to insert the exposed optical fiber part 3 into the exposed optical fiber insertion hole 13, since the length L1 of the exposed optical fiber part 3 is shorter than the length l1 of the nylon covering part fitting hole 12, First, the lower end shoulder portion of the nylon covering portion 2 comes into contact with the tapered portion of the lower end 14 of the outer skin fitting hole 11, and the axis of the nylon covering portion 2 is aligned.
That is, the axis of the exposed optical fiber portion is inserted while being self-aligned with the axis of the ferrule 10, that is, the axes of the nylon covering fitting hole 12 and the exposed optical fiber insertion hole 13. If the optical fiber exposed portion 3 is formed to have an appropriate length, the misalignment of the axis can be suppressed slightly. can be easily inserted into the
第３図は上述したような長さ関係と異なり、
L2＜l2、L1＞l1となるように光フアイバケーブル
端末部を形成した場合に生ずる不都合を説明する
ための図である。前述したことから容易に理解さ
れるように、端末部を第１図の長さ関係と異なる
状態に形成すると、光フアイバ露出部３を嵌合
孔、挿通孔に挿通させる際にナイロン被覆部２の
下端肩部による自動調心作用が得られないから、
光フアイバ露出部３の下端が嵌合孔１２の下端テ
ーパ部１５に当り、無理に挿入しようと下方に押
し付けると光フアイバ露出部３が折れ曲つたり
し、スムースに挿通孔１３を通すことができな
い。 Figure 3 differs from the above-mentioned length relationship,
FIG. 2 is a diagram for explaining a problem that occurs when an optical fiber cable terminal portion is formed so that L 2 <l 2 and L 1 >l 1 . As can be easily understood from the foregoing, if the terminal portion is formed in a state different from the length relationship shown in FIG. Since the self-aligning effect of the lower end shoulder cannot be obtained,
The lower end of the optical fiber exposed portion 3 hits the lower end tapered portion 15 of the fitting hole 12, and if you press it downward forcibly to insert it, the optical fiber exposed portion 3 may bend and the insertion hole 13 cannot be inserted smoothly. Can not.
第２図のように完成された光フアイバケーブル
端部は、これに接続される次の光フアイバケーブ
ルの端と、その光軸を正確に一致させて接続する
アダプタ（図示省略）を介して接続され、これら
が光コネクタを形成する。 As shown in Figure 2, the completed optical fiber cable end is connected to the end of the next optical fiber cable to be connected via an adapter (not shown) that precisely aligns the optical axis and connects the end. and these form an optical connector.
以上詳細に説明したように、この発明では光フ
アイバケーブルの端末部とこれに接続固定される
フエルールの長さ関係を所定の関係に形成し、光
フアイバ露出部を嵌合孔、挿通孔に対して軸方向
への挿入力によつて軸心方向の自動調心をしつゝ
挿入するようにしたから、手動であれ、又自動機
により挿入する場合であつても、光フアイバ露出
部を折り曲げたりして傷付けることなく確実にか
つ比較的容易に挿入することができる。
As described above in detail, in the present invention, the length relationship between the end portion of the optical fiber cable and the ferrule connected and fixed thereto is formed in a predetermined relationship, and the exposed portion of the optical fiber is aligned with the fitting hole and insertion hole. Since the optical fiber is inserted in a self-aligning manner in the axial direction using the insertion force in the axial direction, the exposed portion of the optical fiber can be easily bent, whether it is inserted manually or by an automatic machine. It can be inserted reliably and relatively easily without causing any damage.
第１図は実施例のフエルール組立方法により成
端される光フアイバケーブル端末部構成及びその
光フアイバ露出部、ナイロン被覆部とフエルール
内部嵌合孔のそれぞれの長さ関係を示す図、第２
図は完成状態の光フアイバ端末部構成を示す図、
第３図は第１図と異なる長さ関係に形成した場合
の説明図である。
１……外皮部、２……ナイロン被覆部、３……
光フアイバ露出部、４……保護繊維材、１０……
フエルール、１１……外皮部嵌合孔、１２……ナ
イロン被覆部嵌合孔、１３……光フアイバ露出部
挿通孔。
FIG. 1 is a diagram showing the structure of the optical fiber cable end portion terminated by the ferrule assembly method of the embodiment, and the length relationship between the exposed portion of the optical fiber, the nylon covering portion, and the fitting hole inside the ferrule.
The figure shows the configuration of the optical fiber terminal section in the completed state.
FIG. 3 is an explanatory diagram when the length relationship is different from that in FIG. 1. 1... Outer skin part, 2... Nylon covering part, 3...
Optical fiber exposed portion, 4... Protective fiber material, 10...
Ferrule, 11... Outer skin part fitting hole, 12... Nylon covering part fitting hole, 13... Optical fiber exposed part insertion hole.
Claims (1)
部、ナイロン被覆部、及び光フアイバ露出部を順
次露出させたものを外皮部嵌合孔、ナイロン被覆
部嵌合孔、及び光フアイバ露出部挿通孔の３つの
異なる内径と長さを有する円筒部から成るフエル
ールに挿入して組立てる際に、 外皮部嵌合孔の長さl2よりもナイロン被覆部の
長さL2を長くしかつナイロン被覆部嵌合孔の長
さl1よりも光フアイバ露出部の長さL1を短かく加
工し、 光フアイバ露出部を外皮部嵌合孔に挿入後まず
ナイロン被覆部をナイロン被覆部嵌合孔に挿入
し、 その後外皮部の端末を外皮部嵌合孔へ挿入する
と共に光フアイバ露出部の先端を光フアイバ露出
部挿通孔に挿入し、 フエルール先端より突出した光フアイバ露出部
を最後に切断して仕上げることから成る光フアイ
バケーブルのフエルール組立方法。[Scope of Claims] 1. An optical fiber cable terminal is cut to expose the outer skin part, nylon covering part, and optical fiber exposed part in sequence, and then the outer covering part fitting hole, the nylon covering part fitting hole, and the optical fiber part are cut. When inserting and assembling the fiber exposed part into a ferrule consisting of a cylindrical part with three different inner diameters and lengths, the length L 2 of the nylon covering part should be longer than the length L 2 of the outer skin part fitting hole. In addition, the length L 1 of the exposed optical fiber part is processed to be shorter than the length L 1 of the nylon covering part fitting hole, and after the exposed part of the optical fiber is inserted into the outer skin part fitting hole, the nylon covering part is coated with nylon first. Then, insert the end of the outer skin part into the outer skin fitting hole, and insert the tip of the exposed optical fiber part into the exposed optical fiber insertion hole, and insert the exposed part of the optical fiber protruding from the tip of the ferrule into the exposed optical fiber insertion hole. A method for assembling a ferrule of an optical fiber cable, which consists of final cutting and finishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14178387A JPS63305306A (en) | 1987-06-05 | 1987-06-05 | Terminal structure of optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14178387A JPS63305306A (en) | 1987-06-05 | 1987-06-05 | Terminal structure of optical fiber cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63305306A JPS63305306A (en) | 1988-12-13 |
| JPH0462645B2 true JPH0462645B2 (en) | 1992-10-07 |
Family
ID=15300061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14178387A Granted JPS63305306A (en) | 1987-06-05 | 1987-06-05 | Terminal structure of optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63305306A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5588079A (en) * | 1995-02-17 | 1996-12-24 | Nec Corporation | Optical connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59204017A (en) * | 1983-05-06 | 1984-11-19 | Sumitomo Electric Ind Ltd | Projection preventing optical connector |
-
1987
- 1987-06-05 JP JP14178387A patent/JPS63305306A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63305306A (en) | 1988-12-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1201314A (en) | Connector for fiber optic member | |
| US6431783B2 (en) | Optical fiber connecting structure and connecting member for connecting an optical fiber cable to a ferrule | |
| US5140662A (en) | Method of assembling connector and cable | |
| JP2005114860A (en) | Ferrule for optical connector and method of assembling optical connector | |
| JPH09159867A (en) | Optical connector and manufacturing method thereof | |
| KR100713430B1 (en) | Optical connector plug, manufacturing method and assembly tool | |
| JPH0331923Y2 (en) | ||
| US6604867B2 (en) | Fiber optic connector | |
| JP2656004B2 (en) | Connector assembly for optical fiber cable | |
| EP0008941B1 (en) | Method of terminating optical fibres | |
| US6860645B2 (en) | Optical fiber cable connector assembly with strain relief | |
| JPH04273205A (en) | Tool for loading optical fiber into element of connector | |
| JP2000047057A (en) | Optical fiber fixing structure of ferrule | |
| JPS63305306A (en) | Terminal structure of optical fiber cable | |
| JP2006323067A (en) | Mechanical connection type optical connector and optical connector assembly tool. | |
| JPH08122577A (en) | Multi-core small-diameter fiber connector, fiber insertion aid used for making the same, and method for making multi-core small-diameter fiber connector | |
| US4398793A (en) | Fiber optic cable connector | |
| JP2005114863A (en) | Ferrule for optical connector and method of assembling optical connector | |
| JP3241596B2 (en) | Optical fiber cable connector and connection method | |
| JPH0894877A (en) | Optical fiber connector and assembling method thereof | |
| JPS6128172Y2 (en) | ||
| JPH0664213U (en) | Optical connector ferrule | |
| JPH11142687A (en) | Ferrule and optical connector | |
| JPS5919323B2 (en) | How to connect optical fiber cable | |
| JPH0322726Y2 (en) |