JPS59187307A - Optical fiber connector - Google Patents

Optical fiber connector

Info

Publication number
JPS59187307A
JPS59187307A JP58061752A JP6175283A JPS59187307A JP S59187307 A JPS59187307 A JP S59187307A JP 58061752 A JP58061752 A JP 58061752A JP 6175283 A JP6175283 A JP 6175283A JP S59187307 A JPS59187307 A JP S59187307A
Authority
JP
Japan
Prior art keywords
optical fiber
cross
fixture member
fixing member
projection part
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
Application number
JP58061752A
Other languages
Japanese (ja)
Inventor
Norio Suzuki
鈴木　紀夫
Masayoshi Shigihara
正義 鴫原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP58061752A priority Critical patent/JPS59187307A/en
Publication of JPS59187307A publication Critical patent/JPS59187307A/en
Pending legal-status Critical Current

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
    • G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • 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
    • 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
    • G02B6/3881—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using grooves to align ferrule ends
    • 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
    • G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • G02B6/3894—Screw-lock type
    • 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
    • G02B6/3863—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using polishing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

PURPOSE:To reduce parts in number and facilitate connection by grinding the end surface of one fixture member and forming a cross-shaped groove whose section forms an inversed trapezoid, forming a projection part whose section is trapezoid on the other fixture member, and fitting the projection part in the cross part of the groove and coupling the both with each other. CONSTITUTION:The tip part of the 1st optical fiber fixture member 5 is ground to form the cross-shaped groove 51 whose section forms an inversed trapezoid, and a male screw 52 is also cut. The 2nd optical fiber fixture member 6 has the projection part 61 on the outer circumference only at one end part and a circular projection part whose section forms a trapezoid at the other end surface, and is made of a cap nut 7 cutting the internal surface into a female screw 71 and boring an optical fiber insertion hole 72. The circular projection part 62 of the 2nd optical fiber fixture member 6 is made to abut on the cross part of the cross-shaped groove 51 of the 1st optical fiber fixture member 5, and the female screw 71 of the cap nut 7 is engaged threadably with the male screw 52 of the 1st optical fiber fixture member 5, obtaining an optical fiber connector.

Description

【発明の詳細な説明】 （ａ）　　発明の技術分野 本発明は、光ファイバを結合する光ファイバコネククに
係り、とくに一方の光フアイバコイ・フタの端面に十字
状の溝を削設し、他の光フアイバコイ・ククの端面に、
前記溝の交叉部に嵌め合う凸部を形成して簡易な構造と
した光フアイバコネクタに関するものである。Detailed Description of the Invention (a) Technical Field of the Invention The present invention relates to an optical fiber connector for coupling optical fibers, and in particular, a cross-shaped groove is cut in the end face of one optical fiber coil cover, and the other On the end face of the optical fiber,
The present invention relates to an optical fiber connector having a simple structure by forming a protrusion that fits into the intersection of the grooves.

（ｂ）　　従来技術と問題点 従来光ファイバの結合に用いられていた光フアイバコネ
クタは外周に雄ねじを形成し、両端からテーパを有する
孔を削設したスリーブを用いて結合を行なっている。こ
のような従来の光フアイバコネクタの分解断面図を第１
図に示す。図において１はスリーブで、該スリーブ１の
中心に両端面から所定のテーパ孔１１を削設し、外周に
は雄ねじ１２を形成したものである。２は光ファイバで
、２１は光フアイバ心線、３は光フアイバ固定部材で、
該光ファイ′バ固定部材３は光フアイバ挿通孔３１と突
出部３２と先端に前記スリーブ１のテーバ孔１１に対応
するテーパ３３を形成している。４は袋ナツトで内面に
雄ねじ４１と光フアイバ固定部材３を挿通する孔４２を
穿設したものである。(b) Prior Art and Problems Optical fiber connectors conventionally used for coupling optical fibers are coupled using a sleeve with a male thread formed on the outer periphery and tapered holes cut from both ends. The first exploded cross-sectional view of such a conventional optical fiber connector is
As shown in the figure. In the figure, reference numeral 1 denotes a sleeve, in which a predetermined tapered hole 11 is cut from both end faces in the center of the sleeve 1, and a male thread 12 is formed on the outer periphery. 2 is an optical fiber, 21 is an optical fiber core wire, 3 is an optical fiber fixing member,
The optical fiber fixing member 3 has an optical fiber insertion hole 31, a protrusion 32, and a taper 33 corresponding to the tapered hole 11 of the sleeve 1 at the tip. 4 is a cap nut having a male screw 41 and a hole 42 through which the optical fiber fixing member 3 is inserted.

ガラス繊維入合成樹脂からなる光フアイバ固定部材３を
袋ナツト４の光フアイバ固定部材挿通孔４２に挿通した
るのち、該光フアイバ固定部材３の光フアイバ挿通孔３
１に挿通するに先立ち、前記光ファイバ２の先端部の被
覆を所定寸法剥離して光ファイバ心線２１を露出せしめ
て前記光フアイバ挿通孔３１に挿通接着した光フアイバ
固定部材３を双方からスリーブｌに矢印Ａ方向から嵌合
し、袋ナツト４を回動してスリーブ１に螺着する構造と
なっている。ところがこのような構造の光フアイバコイ
・フタは部品点数が多く、シかも高精度の加工を必要と
するため高価になるという問題点がありた・。After inserting the optical fiber fixing member 3 made of synthetic resin containing glass fiber into the optical fiber fixing member insertion hole 42 of the cap nut 4, the optical fiber fixing member 3 of the optical fiber fixing member 3 is inserted.
1, the coating on the tip of the optical fiber 2 is peeled off by a predetermined length to expose the optical fiber core 21, and the optical fiber fixing member 3, which is glued and inserted into the optical fiber insertion hole 31, is removed from both sides of the sleeve. 1 from the direction of arrow A, and is screwed onto the sleeve 1 by rotating the cap nut 4. However, the optical fiber coil lid with this structure has a large number of parts and requires high-precision machining, making it expensive.

（ｃ）発明の目的 本発明は、上記従来の問題点に鑑み、部品点数を減じ容
易に結合が行える安価な光フアイバコイ・フタを提供す
ることを目的とするものである。(c) Purpose of the Invention In view of the above-mentioned conventional problems, an object of the present invention is to provide an inexpensive optical fiber coil lid that can reduce the number of parts and can be easily connected.

（ｄ）　　発明の構成 前述の目的を達成するために本発明は、光ファイバの結
合に用いる光フアイバコネクタであって、前記光フアイ
バコネクタの一方の光フアイバ固定部材の端面に断面が
逆台形状の溝を十字状に削設し、他方の光フアイバ固定
部材の端面に前記溝の交叉部に対応する断面が台形状の
凸部を形成し、該凸部を前記溝の交叉部に嵌め合わせ結
合するようにしたことによって達成される。(d) Structure of the Invention In order to achieve the above-mentioned object, the present invention provides an optical fiber connector used for coupling optical fibers, wherein the end face of one optical fiber fixing member of the optical fiber connector has an inverted trapezoidal cross section. A groove is cut in a cross shape, and a convex portion having a trapezoidal cross section corresponding to the intersection of the grooves is formed on the end face of the other optical fiber fixing member, and the convex portion is fitted into the intersection of the grooves. This is achieved by combining them.

（ｅ）発明の実施例 以下図面を参照しながら本発明に係る光フアイバコネク
タの実施例（こついて詳細に説明する。(e) Embodiments of the Invention Hereinafter, embodiments of the optical fiber connector according to the present invention will be described in detail with reference to the drawings.

第２゛図および第３図は本発明の一実施例を説明するた
めの、第２図は光フアイバコネクタの４５゜傾斜部断面
図、第３図は光フアイバ固定部材の斜視図で、削口と同
等の部分は同一符号で付しており、５は第１の光フアイ
バ固定部材で先端部に断面が逆台形状の十字状溝５１を
削設置／、雄ねじ５２を形成している。６は第２の光フ
アイバ固定部材で一端部のみ外周に突出部６１と他の端
面に断面が台形状の円形凸部６２を形成したものであり
、７は内面に雌ねじ７１を形成し、光フアイバ挿通孔７
２を削設してなる袋ナツトである。Figures 2 and 3 are for explaining one embodiment of the present invention. Figure 2 is a cross-sectional view of a 45° inclined portion of an optical fiber connector, and Figure 3 is a perspective view of an optical fiber fixing member, with cutaway. Portions equivalent to the opening are designated by the same reference numerals. 5 is a first optical fiber fixing member, and a cross-shaped groove 51 with an inverted trapezoidal cross section is cut at the tip thereof, and a male thread 52 is formed. Reference numeral 6 denotes a second optical fiber fixing member, which has a protrusion 61 on the outer periphery of only one end and a circular convex portion 62 with a trapezoidal cross section on the other end. Reference numeral 7 has a female thread 71 formed on the inner surface. Fiber insertion hole 7
This is a bag nut made by cutting 2.

ガラス繊維入り合成樹脂からなる第１の光フアイバ固定
部材５の光フアイバ挿通孔５３に光ファイバ２を挿通す
るに先立ち、該光ファイバ２の先端部の被覆を所定寸法
剥離して光フアイバ心線２１を露出せしめて前記光フア
イバ挿通孔５３に挿通接着する。他方第２の光フアイバ
固定部材６に光ファイバ２を挿通するに先立ち、まず光
ファイバ２を袋ナツト７の光フアイバ挿通孔７２に挿通
し、しかるのち光ファイバ２の先端を若干剥離して第１
の光フアイバ固定部材５に接着したと同様の順序で光フ
ァイバ２を第２の光フアイバ固定部材に接着する。そし
て第１の光フアイバ固定部材５の十字状溝５Ｊの交叉部
に第２の光フアイバ固定部材６の円形凸部６２を突き合
せる形で袋ナツト７の雌ねじ７ｊと第１の光フアイバ固
定部材５の雄ねじ５２とを螺着するようにした光フアイ
バコネクタである。Before inserting the optical fiber 2 into the optical fiber insertion hole 53 of the first optical fiber fixing member 5 made of synthetic resin containing glass fiber, a predetermined amount of the coating on the tip of the optical fiber 2 is peeled off to form a cored optical fiber. 21 is exposed and inserted into the optical fiber insertion hole 53 and bonded. On the other hand, before inserting the optical fiber 2 into the second optical fiber fixing member 6, the optical fiber 2 is first inserted into the optical fiber insertion hole 72 of the cap nut 7, and then the tip of the optical fiber 2 is slightly peeled off. 1
The optical fiber 2 is bonded to the second optical fiber fixing member in the same order as that in which it was bonded to the second optical fiber fixing member 5. Then, the female thread 7j of the cap nut 7 and the first optical fiber fixing member are connected in such a way that the circular convex portion 62 of the second optical fiber fixing member 6 butts against the intersection of the cross-shaped grooves 5J of the first optical fiber fixing member 5. This is an optical fiber connector that is screwed onto a male screw 52 of No. 5.

なお、本実施例では第２の光フアイバ固定部材６の突出
部６１は断面が台形状の凸部６２は円形について説明し
たが、円形に限らず四角形であっても構わない。In this embodiment, the protrusion 61 of the second optical fiber fixing member 6 has been described as having a trapezoidal cross section and the convex portion 62 having a circular shape, but the shape is not limited to a circle, but may be a square shape.

（ｆ）　　発明の効果 以上の説明から明らかなように本発明に係る光フアイバ
コイ・フタによれば、従来のスリーブを用いた光フアイ
バコイ・フタにくらべて部品点数が少なくなるとともに
高精度加工を必要としないのでコストダウンを実現でき
る利点がある。(f) Effects of the Invention As is clear from the above explanation, the optical fiber coil lid according to the present invention requires fewer parts and requires high-precision machining compared to the optical fiber coil lid using a conventional sleeve. This has the advantage of reducing costs.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の光フアイバコネクタを説明するための分
解断面図、第２図および第３図は本発明に係る光フアイ
バコネクタの一実施例を説明するための光フアイバコイ
・フタの４５°傾斜部断面図および光フアイバ固定部材
の断面図である。 図において、１はスリー乙　２は光ファイバ。 ３は光フアイバ固定部材、４および７は袋ナンド。 ５は第１の光フアイバ固定部材、６は第２の光フアイバ
固定部材、１１はテーバ孔、１２および５２は雄ねじ、
２１は光フアイバ心線、　　３１，５３．および６３は
光フアイバ挿通孔、３２および６１は突出部、３３はテ
ーバ部、４１および７１は雌ねじ、４２は光フアイバ固
定部材挿通孔、　５１は十字状溝、６２は円形凸部をそ
れぞれ示す。FIG. 1 is an exploded cross-sectional view for explaining a conventional optical fiber connector, and FIGS. 2 and 3 are for explaining an embodiment of the optical fiber connector according to the present invention, with a 45° inclination of the optical fiber coil lid. FIG. 2 is a partial sectional view and a sectional view of an optical fiber fixing member. In the figure, 1 is a three-way cable and 2 is an optical fiber. 3 is an optical fiber fixing member, and 4 and 7 are bag nands. 5 is a first optical fiber fixing member, 6 is a second optical fiber fixing member, 11 is a tapered hole, 12 and 52 are male screws,
21 is an optical fiber core, 31, 53. and 63 are optical fiber insertion holes, 32 and 61 are protruding parts, 33 is a tapered part, 41 and 71 are internal threads, 42 is an optical fiber fixing member insertion hole, 51 is a cross-shaped groove, and 62 is a circular convex part.

Claims (1)

【特許請求の範囲】[Claims] 光ファイバの結合に用いる光フアイバコネクタであって
、前記光フアイバコネクタの一方の光フアイバ固定部材
の端面に断面が逆台形状の溝を十字状に削設し、他方の
光フアイバ固定部材の端面に前記溝の交叉部に対応する
断面が台形状の凸部を形成し、該凸部を前記溝の交叉部
に嵌め合わせ結合するようにしたことを特徴とする光フ
アイバコネクタ。An optical fiber connector used for coupling optical fibers, wherein a groove having an inverted trapezoidal cross section is cut in a cross shape on the end face of one optical fiber fixing member of the optical fiber connector, and the end face of the other optical fiber fixing member. An optical fiber connector characterized in that a convex portion having a trapezoidal cross section corresponding to the intersection of the grooves is formed, and the convex portion is fitted and coupled to the intersection of the grooves.
JP58061752A 1983-04-07 1983-04-07 Optical fiber connector Pending JPS59187307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58061752A JPS59187307A (en) 1983-04-07 1983-04-07 Optical fiber connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58061752A JPS59187307A (en) 1983-04-07 1983-04-07 Optical fiber connector

Publications (1)

Publication Number Publication Date
JPS59187307A true JPS59187307A (en) 1984-10-24

Family

ID=13180203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58061752A Pending JPS59187307A (en) 1983-04-07 1983-04-07 Optical fiber connector

Country Status (1)

Country Link
JP (1) JPS59187307A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0911661A1 (en) * 1996-07-09 1999-04-28 Seiko Instruments Inc. Optical connector ferrule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0911661A1 (en) * 1996-07-09 1999-04-28 Seiko Instruments Inc. Optical connector ferrule
EP0911661A4 (en) * 1996-07-09 1999-09-22 Seiko Instr Inc Optical connector ferrule

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