JPS60237410A - Construction of connecting sleeve for optical connector - Google Patents
Construction of connecting sleeve for optical connectorInfo
- Publication number
- JPS60237410A JPS60237410A JP9403884A JP9403884A JPS60237410A JP S60237410 A JPS60237410 A JP S60237410A JP 9403884 A JP9403884 A JP 9403884A JP 9403884 A JP9403884 A JP 9403884A JP S60237410 A JPS60237410 A JP S60237410A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- cylindrical sleeve
- slit
- ferrule
- hole
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims description 5
- 238000010276 construction Methods 0.000 title abstract 2
- 239000013307 optical fiber Substances 0.000 abstract description 6
- 229910001369 Brass Inorganic materials 0.000 abstract description 2
- 239000010951 brass Substances 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract 1
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 2
- 101710133576 Slit homolog 2 protein Proteins 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
- G02B6/3877—Split sleeves
-
- 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、元ファイバの端部に固定される光コネクタの
接続スリーブ構造に−する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a connection sleeve structure for an optical connector that is fixed to the end of a source fiber.
従来、光フアイバコネクタの接続スリーブ構造は、第１
図に示すように、円筒スリーブに円筒の中心軸に平行に
切欠いたスリット２を設けた割夛スリーブｌが多く使用
されている。このような割シスリーブ１は貫通穴３の内
径Ａを光ファイバを固定しているプラグフェルールの外
径より小さく形成しであるため、割りスリーブ１にプラ
グフェルールを挿入したときにプラグ７エルールと貫通
穴３との間に隙間が生じにくい構造となっている。Conventionally, the connection sleeve structure of an optical fiber connector has a first
As shown in the figure, a split sleeve l in which a slit 2 cut out parallel to the central axis of the cylinder is provided in a cylindrical sleeve is often used. In such a split sleeve 1, the inner diameter A of the through hole 3 is formed smaller than the outer diameter of the plug ferrule that fixes the optical fiber, so when the plug ferrule is inserted into the split sleeve 1, it will not fit through the plug 7 errule. The structure is such that it is difficult to form a gap between the hole 3 and the hole 3.
しかしながら、第１図に示す割シスリーブ１においては
、スリット２を形成するとき円筒スリーブに外力が加わ
るためこれが変形して貫通穴３の形状の均一性が失われ
易く、第２図に示すようにプラグフェルール４を均一に
保持することが困難になる。また、第３図に示すように
プラグフェルール外周に凹凸がある場合にも貫通穴３の
形状の均一性が失われ、ファイバの接続が不安定になる
欠点がある。However, in the split sleeve 1 shown in FIG. 1, when forming the slit 2, an external force is applied to the cylindrical sleeve, which deforms it and tends to lose the uniformity of the shape of the through hole 3. It becomes difficult to hold the plug ferrule 4 uniformly. Further, as shown in FIG. 3, when the outer periphery of the plug ferrule has irregularities, the uniformity of the shape of the through hole 3 is lost, resulting in an unstable fiber connection.
本発明の目的は、上述の欠点を除去しプラグフェルール
を安定に保持できる光コネクタの接続スリーブ構造を提
供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a connection sleeve structure for an optical connector that can eliminate the above-mentioned drawbacks and stably hold a plug ferrule.
本発明によれば、元コネクタのプラグ７エルール外径よ
り小さい内径の貫通穴とこの貫通穴の内周面に該貫通穴
の中心軸と平行に設けた複数の溝と前記貫通穴の中心軸
に平行に設けたスリットとを有する第１の円筒形スリー
ブと、該第１の円筒形スリーブの外径よシ小さい内径の
貫通穴および該貫通穴の中心軸と平行に設けたスリット
を有する第２の円筒形スリーブとから構成される接続ス
リーブ構造が得られる。According to the present invention, there is provided a through hole having an inner diameter smaller than the outer diameter of the plug 7 errule of the original connector, a plurality of grooves provided on the inner peripheral surface of the through hole in parallel with the central axis of the through hole, and a central axis of the through hole. a first cylindrical sleeve having a slit parallel to the cylindrical sleeve; a through hole having an inner diameter smaller than the outer diameter of the first cylindrical sleeve; and a first cylindrical sleeve having a slit parallel to the central axis of the through hole. A connecting sleeve structure is obtained consisting of two cylindrical sleeves.
次に本発明の実施例を図面を参照して詳細に説明する。Next, embodiments of the present invention will be described in detail with reference to the drawings.
第４図は、本発明の一実施例を示す断面図で、接続スリ
ーブの半径方向断面を示す。FIG. 4 is a sectional view showing an embodiment of the invention, showing a radial cross section of the connecting sleeve.
図において、５はプラグフェルールを挿入する第１の円
筒形スリーブ、７は円筒形スリーブ５を挿入した第２の
円筒形スリーブである。円筒形スリーブ５はゴム弾性を
有するたとえばボリカーボナイトなどのプラスチック材
料でできてお夛５円筒の中心軸に平行に切欠いたスリッ
ト８とその中心軸に平行に複数の溝６が形成されている
。円筒形スリーブ７は弾性を有するたとえば黄銅などの
金属材料で製作され、円筒形スリーブ５の外径よシやや
小さい内径を有し、円筒の中心軸に平行に切欠いたスリ
ット９がスリット８と１８００反対側の位置に形成され
ている。第４図に示す接続スリーブに中心軸上に光ファ
イバを固定しているプラグフェルール４を挿入した状態
を第５図に示す。In the figure, 5 is a first cylindrical sleeve into which the plug ferrule is inserted, and 7 is a second cylindrical sleeve into which the cylindrical sleeve 5 is inserted. The cylindrical sleeve 5 is made of a plastic material having rubber elasticity, such as polycarbonite, and has a slit 8 cut out parallel to the central axis of the cylinder and a plurality of grooves 6 parallel to the central axis. The cylindrical sleeve 7 is made of an elastic metal material such as brass, has an inner diameter slightly smaller than the outer diameter of the cylindrical sleeve 5, and has a slit 9 cut out parallel to the central axis of the cylinder between the slits 8 and 1800. formed on the opposite side. FIG. 5 shows a state in which the plug ferrule 4 fixing the optical fiber on the central axis is inserted into the connection sleeve shown in FIG. 4.
プラグフェルール４の外径は円筒形スリーブ５の内径よ
シ大きい。このプラグ７エルール４の外周に凹凸があり
プラグ７エルール４の半径方向の断面が完全な真円でな
い場合において、円筒スリーブ５は溝６の働きによシ、
局部的に変形するのみで、スリーブ全体が変形すること
はない。しかも。The outer diameter of the plug ferrule 4 is larger than the inner diameter of the cylindrical sleeve 5. When the outer circumference of the plug 7 errule 4 is uneven and the radial cross section of the plug 7 errule 4 is not a perfect circle, the cylindrical sleeve 5 is
The sleeve is only deformed locally, and the entire sleeve is not deformed. Moreover.
円筒スリーブ７により円筒スリーブ５はその中心軸方向
へ押えられているため、変形部分では中心軸に向かって
力（ｆ、〜ｆ４）が作用し、プラグフェルール４を安定
に保持する。したがって、第３図に示す割）スリーブ１
のようにプラグフェルール４の保持が不安定になること
はない。Since the cylindrical sleeve 5 is pressed in the direction of its central axis by the cylindrical sleeve 7, a force (f, to f4) acts toward the central axis at the deformed portion, stably holding the plug ferrule 4. Therefore, as shown in Fig. 3) sleeve 1
The holding of the plug ferrule 4 will not become unstable as in the case shown in FIG.
本実施例では円筒形スリーブ７が金属製であるので、円
筒形スリーブ５にプラスチックモールド品を使用しても
良い。モールドによりスリット８を設けるときにスリー
ブの形状の均一性が失なわれることはない。また、円筒
形スリーブ７は、直接にプラスチックフェルール４を挿
入保持しないため、その寸法は高精度でなくても良い。Since the cylindrical sleeve 7 is made of metal in this embodiment, a plastic molded product may be used for the cylindrical sleeve 5. When forming the slits 8 by molding, the uniformity of the shape of the sleeve is not lost. Further, since the cylindrical sleeve 7 does not directly insert and hold the plastic ferrule 4, its dimensions do not need to be highly accurate.
したがって、スリット９を設けるときに生ずるスリーブ
の変形の影響は無視できる。Therefore, the effect of deformation of the sleeve that occurs when providing the slit 9 can be ignored.
以上説明したように、本発明によれば、スリーブに挿入
するプラグが真円でない場合においてもプラグを安定に
保持することができるため、プラグ内に固定される光フ
ァイバを低損失で、かつ、ばらつき少なく接続できる。As explained above, according to the present invention, even when the plug inserted into the sleeve is not a perfect circle, it is possible to stably hold the plug, so that the optical fiber fixed in the plug can be held with low loss and Connections can be made with little variation.
またスリーブが２重構造になっているため、スリーブに
スリットを設ける場合の形状変化の影響が少ない。Furthermore, since the sleeve has a double structure, the influence of changes in shape when providing a slit in the sleeve is small.
第１図は従来の割シスリーブの斜視図、第２図。
第３図は従来のスリーブにプラグ７エルールを挿入した
状態を示す断面図、第４図は本発明の実施例を示す断面
図、第５図は本発明の実施例のスリーブにプラグフェル
ールを挿入したときの断面図である。
１・・・・・・従来の割シスリーグ、２・・・・・・ス
リット、３・・・・・・貫通穴、４・・・・・・プラグ
フェルール、５・・・・・・円筒形スリーブ、６・・・
・・・溝、７・・・・・・円筒形スリーブ、８，９・・
・・・・スリッ）、ｆｔ〜ｆ４・・・・・・圧縮力。
第１図
第３図
篤４図
Ｍ２１図
第５図FIG. 1 is a perspective view of a conventional split sleeve, and FIG. 2 is a perspective view of a conventional split sleeve. Fig. 3 is a sectional view showing a plug 7 ferrule inserted into a conventional sleeve, Fig. 4 is a sectional view showing an embodiment of the present invention, and Fig. 5 is a sectional view showing a plug ferrule inserted into a sleeve according to an embodiment of the present invention. FIG. 1... Conventional split system league, 2... Slit, 3... Through hole, 4... Plug ferrule, 5... Cylindrical shape. Sleeve, 6...
...Groove, 7...Cylindrical sleeve, 8,9...
...Slip), ft~f4...Compression force. Figure 1 Figure 3 Atsushi Figure 4 Figure M21 Figure 5
Claims (1)
通穴とこの貫通穴の内周向に前記Ｘ通人の中心軸に平行
に設けた複数の溝と前記貫通穴の中心軸に平行に設けた
スリットとを有する第１の円筒形スリーブと、前記第１
の円筒形スリーブの外径よシ小さい内径の貫通穴および
該貫通穴の中心軸に平行に設けたスリットを有する第２
の円筒形スリーブとから構成される光コイ・フタの接続
スリーブ構造。A through hole with an inner diameter smaller than the outer diameter of the plug ferrule of the optical connector, a plurality of grooves provided in the inner circumferential direction of the through hole parallel to the central axis of the X-passenger, and a plurality of grooves provided parallel to the central axis of the through hole. a first cylindrical sleeve having a slit;
A second through-hole having an inner diameter smaller than the outer diameter of the cylindrical sleeve and a slit parallel to the central axis of the through-hole.
The connection sleeve structure of the optical coil and lid consists of a cylindrical sleeve and a cylindrical sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9403884A JPS60237410A (en) | 1984-05-11 | 1984-05-11 | Construction of connecting sleeve for optical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9403884A JPS60237410A (en) | 1984-05-11 | 1984-05-11 | Construction of connecting sleeve for optical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60237410A true JPS60237410A (en) | 1985-11-26 |
Family
ID=14099393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9403884A Pending JPS60237410A (en) | 1984-05-11 | 1984-05-11 | Construction of connecting sleeve for optical connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60237410A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398160A3 (en) * | 1989-05-17 | 1991-11-13 | Siemens Aktiengesellschaft | Light beam connector with a guide bush enclosed in a protective sleeve |
| EP1146371A3 (en) * | 1993-09-30 | 2002-01-09 | Sumitomo Electric Industries, Ltd. | Optical module, method of manufacturing the same, and sleeve |
| JP2002250840A (en) * | 2001-02-22 | 2002-09-06 | Molex Japan Co Ltd | Optical fiber connector |
| JP2011013509A (en) * | 2009-07-02 | 2011-01-20 | Toto Ltd | Optical receptacle, and method of manufacturing the same |
| US9921373B2 (en) | 2013-12-19 | 2018-03-20 | Exfo Inc. | Fiber-optic connector mating assembly for optical test instruments |
-
1984
- 1984-05-11 JP JP9403884A patent/JPS60237410A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398160A3 (en) * | 1989-05-17 | 1991-11-13 | Siemens Aktiengesellschaft | Light beam connector with a guide bush enclosed in a protective sleeve |
| EP1146371A3 (en) * | 1993-09-30 | 2002-01-09 | Sumitomo Electric Industries, Ltd. | Optical module, method of manufacturing the same, and sleeve |
| JP2002250840A (en) * | 2001-02-22 | 2002-09-06 | Molex Japan Co Ltd | Optical fiber connector |
| JP2011013509A (en) * | 2009-07-02 | 2011-01-20 | Toto Ltd | Optical receptacle, and method of manufacturing the same |
| US9921373B2 (en) | 2013-12-19 | 2018-03-20 | Exfo Inc. | Fiber-optic connector mating assembly for optical test instruments |
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