JPS607415A - Two-way type rotary joint for optical fiber - Google Patents
Two-way type rotary joint for optical fiberInfo
- Publication number
- JPS607415A JPS607415A JP11778183A JP11778183A JPS607415A JP S607415 A JPS607415 A JP S607415A JP 11778183 A JP11778183 A JP 11778183A JP 11778183 A JP11778183 A JP 11778183A JP S607415 A JPS607415 A JP S607415A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- external element
- element wires
- external
- rotary
- 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
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
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/3502—Optical coupling means having switching means involving direct waveguide displacement, e.g. cantilever type waveguide displacement involving waveguide bending, or displacing an interposed waveguide between stationary waveguides
- G02B6/3504—Rotating, tilting or pivoting the waveguides, or with the waveguides describing a curved path
-
- 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
- G02B6/3604—Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle 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
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
- G02B6/3554—3D constellations, i.e. with switching elements and switched beams located in a volume
- G02B6/3558—1xN switch, i.e. one input and a selectable single output of N possible outputs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
Description
【発明の詳細な説明】
(イ) 産喫−にの利用分野
この発明は、光フアイバ用双方向バリロータリジヨイン
トに関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Application This invention relates to a bi-directional vari-rotary joint for optical fiber.
(ロ) 従来技術
光フアイバケーブルのロータリジヨイントとじて従来か
ら知られているものは、第1図に示すごとき単芯型てあ
った。(b) Prior Art A conventional rotary joint for optical fiber cables has been of the single-core type as shown in FIG.
すなわち、このロータリジヨイントは、固定ハウジング
1と回転ハウジング2を、軸受3を介して同窓状態に嵌
合し、各ハウジング1,2にそれぞれ光フアイバコード
4の先端に取付けた光コネクタ5を対向状に挿入したも
のであり、固定ハウシンク1に対して回転ハウジング2
が自由1こ回転できるようになっている。That is, in this rotary joint, a fixed housing 1 and a rotary housing 2 are fitted in the same state through a bearing 3, and an optical connector 5 attached to the tip of an optical fiber cord 4 is connected to each of the housings 1 and 2, facing each other. The rotating housing 2 is inserted into the fixed housing sink 1.
can rotate freely once.
(ハ) 発明によって解決しようとする間−+14点上
記のよう1こ、従来のロークリジョインl−11,11
1、芯型であるから、一方向通信しかできない間・、・
(1がある。(c) While trying to solve the problem by invention -+14 points 1 as above, conventional lore join l-11,11
1. Since it is a core type, only one-way communication is possible.
(There is 1.
そこで、この発明は、双方回通(唇がijJ能な[コー
タリジョイントを提供することを目的とするものである
。Therefore, it is an object of the present invention to provide a coterie joint in which the lips can be recirculated in both directions.
に) 問題点を解決するための手段
この発明は、上記の目的を達成するために、いずれか一
方のハウジングの光コネクタに挿入される2本の光フア
イバ素線のうち1本を内部素線としてコネクタ中心に、
他の1本を外部素線として中心から半径方向に一定間隔
をおいた位置にそれぞれ配置し、また他方のハウジング
の光コネクタに上記内部素線と対向した内部素線と、そ
の周囲に上記外部素線と同じ間隔を半径方向において多
数の外部素線を配置した構1戊としたものである。In order to achieve the above-mentioned object, the present invention provides an internal wire for one of the two optical fiber wires inserted into the optical connector of one of the housings. Mainly as a connector,
The other one is placed as an external wire at a certain distance from the center in the radial direction, and the inner wire facing the inner wire is connected to the optical connector of the other housing, and the outer wire is placed around it. This is a structure in which a large number of external strands are arranged in the radial direction at the same intervals as the strands.
上記構成のロータリジヨイントは、固定側と回転側の中
心1こ配置した各内部素線により一つの通信路が形成さ
れ、また、・固定側の外部素線【こ対して1回転側の複
数の外部禦゛線のうちの1本が対向してもう一つの通信
路が形成されるから、合計2通信路が形成されることに
なる。In the rotary joint with the above configuration, one communication path is formed by each internal strand placed at the center of the stationary side and the rotating side. Since one of the external wires faces each other to form another communication path, a total of two communication paths are formed.
(ホ) 実施例
第2図はこの発明の実施例であり、このロークリジヨイ
ントも前述の場合と同様に固定ハウジング101こ回転
ハウジング11を軸受12を介して嵌合し、各ハウジン
グ10.11に光コネクタ13.14を挿入固定した構
造となっている。(E) Embodiment FIG. 2 shows an embodiment of the present invention, in which a fixed housing 101 and a rotary housing 11 are fitted together via bearings 12, and each housing 10. It has a structure in which optical connectors 13 and 14 are inserted and fixed in 11.
各光コネクタ13.14は、ハウジング10゜11の内
部に設けた環状の壁15.16により同窓状態になるよ
う支持され、また、っば17 、 iaを各ハウジング
13.14の端部1こ当て1、軸方向の位置決めを行な
うと共に、袋ナツト19.20により固定している。Each optical connector 13.14 is supported in a symmetrical manner by an annular wall 15.16 provided inside the housing 10. The abutment 1 is positioned in the axial direction and is fixed with cap nuts 19 and 20.
なお、固定ハウジング10内に挿入された回111.i
ζハウジング11の端部につば付きスリーブ21を挿入
し、そのつばにより軸受12の抜は出しを防止している
。Note that the rotation 111. inserted into the fixed housing 10. i
A sleeve 21 with a flange is inserted into the end of the ζ housing 11, and the flange prevents the bearing 12 from being pulled out.
上記固定ハウシング10に1木人される光コネクタ13
には、光フアイバコード22からむき出した2木のファ
イバ緊線23.24か挿入されており、そのうちの1本
は内部素線23としてコネクタ13の中心に挿入され、
他の1本は外部零線24゜とじて中心から半径方向に一
定間隔をおいて挿入されている(第4図参照)。Optical connector 13 mounted on the fixed housing 10
Two fiber bundles 23 and 24 exposed from the optical fiber cord 22 are inserted into the connector 13, one of which is inserted into the center of the connector 13 as an internal wire 23.
The other one is inserted at a constant interval in the radial direction from the center with an external zero wire of 24 degrees (see FIG. 4).
なお、第2図に鎖線で示すように、上記外部零線24と
中心対称の位置にもう1本の外部素線を挿入する場合も
ある。In addition, as shown by the chain line in FIG. 2, another external strand may be inserted at a position centrally symmetrical to the external zero wire 24.
一方、回転ハウジング11に挿入される光コネクタ14
には、もう1つの光ファイバ25からむき出した3以−
ヒのファイバ緊線が挿入されており、そのうち1本は内
部素線26としてコネクタ14の中心に挿入され、前記
め内部素線23と同窓状態に対向されている。また他の
複数の素線は外部素線27として中心から平径方向に前
述の外部素線24と同じ間隔をおいて内部素線26の周
りに挿入されている。(第3図参照)
これらの各光コネクタ13.14の端部は、ハウジング
10.11内で一定間隔をおいて対向することにより、
内部素線23.26相互が光結合されて一つの通信路を
形成する。また、固定外側外部素線24と、回転側外部
素線27の1つが対向することによりもう一つの通信路
が形成される。On the other hand, the optical connector 14 inserted into the rotating housing 11
The three fibers exposed from another optical fiber 25 are shown in FIG.
Two fiber strands are inserted, one of which is inserted into the center of the connector 14 as an internal strand 26, facing the inner strand 23 in the same window. Further, a plurality of other strands are inserted as outer strands 27 around the inner strand 26 at the same intervals as the above-mentioned outer strands 24 in the radial direction from the center. (See Figure 3) The ends of each of these optical connectors 13.14 are opposed to each other at regular intervals within the housing 10.11.
The internal wires 23 and 26 are optically coupled to each other to form one communication path. Further, another communication path is formed by the fixed outer external wire 24 and one of the rotating external wires 27 facing each other.
したがって、回転側の外部素線27を周方向に密に配置
しておき、全部の外部素線27を共通の送信又は受信装
置に結合しておくと、回転ハウジング11が回転しても
、外部素線24 、27による光信号の送受をとぎれる
ことなく行なうことができる。Therefore, if the external strands 27 on the rotating side are closely arranged in the circumferential direction and all the external strands 27 are connected to a common transmitting or receiving device, even if the rotating housing 11 rotates, the external Optical signals can be transmitted and received by the wires 24 and 27 without interruption.
また、回転側の全ての外部素線27を各独立の送信又は
受信装置に結合しておくと、回転ハウジング11を人為
的に所定用度回転することにより、外部素線24..2
7による通信路の切換えを行なうことができる。Moreover, if all the external strands 27 on the rotating side are connected to respective independent transmitting or receiving devices, the external strands 24. .. 2
7 can be used to switch the communication path.
なお、以上は固定側の光フアイバ素線の数か回転側のそ
れより少ない関係について示しているが、この関係は逆
であっても差支えない。In addition, although the above description shows the relationship in which the number of optical fiber strands on the fixed side is smaller than that on the rotating side, this relationship may be reversed.
(へ) 効果
以上のように、この発明は固定側及び回転側の各ハウジ
ングに1■人される光コネクタに、それぞれ相い対向す
る位置関係に内部及び外部素線を挿入したものであるか
ら、回転ハウジングの回転によっても少なくとも2通信
路が確保されるので。(F) Effect As described above, this invention is an optical connector that is placed in each housing on the stationary side and the rotating side, and internal and external wires are inserted in opposing positions, respectively. , since at least two communication paths are ensured by the rotation of the rotating housing.
双方向通信又は一方向2通信を行なうことかできる。It is possible to perform two-way communication or one-way two-way communication.
第1図は従来例の断面図、第2図は実施例のtlii面
図、第3図は固定側光コネクタの11′fr面図、第4
図は回転側光コネクタの断面図である。
10・・・固定ハウシング、11・・・回転ハウシング
。
12・・軸受、13 、14・・・光コネクタ、22.
25・・・光フアイバコード、23.26・・・内部緊
線、24.27・・外部素線
特51出jI11″(人 イ1反電気工業株式会社同
代理人 鎌 1)文 二Figure 1 is a sectional view of the conventional example, Figure 2 is a tlii side view of the embodiment, Figure 3 is a 11'fr side view of the fixed side optical connector, and Figure 4 is a 11'fr side view of the fixed side optical connector.
The figure is a sectional view of the rotating side optical connector. 10... Fixed housing, 11... Rotating housing. 12... Bearing, 13, 14... Optical connector, 22.
25...Optical fiber bar cord, 23.26...Internal tension line, 24.27...External strand special 51 output jI11'' (person)
Agent Sickle 1) Bun 2
Claims (1)
グに光コネクタを同窓状態に挿入固定してその先端面を
対向せしめた光フアイバ用双方向型ロータリジヨイント
において、いずれか一方のハウジングの光コネクタ1こ
挿入される2木の光フアイバ素線のうち1本を内部素線
としてコネクタの中心に、他の1本を外部素線として中
心から半径方向Iこ一定間隔をおいた位置にそれぞれ配
置し、また他方のハウジングの光コネクタに上記内部素
線と対向した内部素線と、その周囲に上記外部素線と同
じ間隔を半径方向において多数の外部素線を配置したこ
とを特徴とする光フアイバ用双方向型ロークリジヨイン
ト。In a bidirectional rotary joint for optical fibers, in which a rotary housing is fitted into a fixed housing, and optical connectors are inserted and fixed in the respective housings in the same state, with their tip surfaces facing each other, the optical connector 1 of one of the housings is Of the two optical fiber strands to be inserted, one is placed at the center of the connector as an internal strand, and the other is placed as an external strand at a constant distance from the center in the radial direction. , and an optical fiber characterized in that the optical connector of the other housing has an internal strand facing the above-mentioned internal strand, and a large number of external strands arranged around it in the radial direction at the same intervals as the above-mentioned external strand. Bidirectional low rigidity joint for use.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11778183A JPS607415A (en) | 1983-06-28 | 1983-06-28 | Two-way type rotary joint for optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11778183A JPS607415A (en) | 1983-06-28 | 1983-06-28 | Two-way type rotary joint for optical fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS607415A true JPS607415A (en) | 1985-01-16 |
Family
ID=14720155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11778183A Pending JPS607415A (en) | 1983-06-28 | 1983-06-28 | Two-way type rotary joint for optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS607415A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0293568A1 (en) * | 1987-03-31 | 1988-12-07 | Siemens Aktiengesellschaft | Switching device for optical fibres |
US4860559A (en) * | 1986-01-11 | 1989-08-29 | Camber International Limited | Information transfer |
EP0379192A2 (en) * | 1989-01-19 | 1990-07-25 | Alcatel N.V. | Fiber optic switch |
US7724996B2 (en) * | 2007-01-24 | 2010-05-25 | Schleifring Und Apparatebau Gmbh | Two-channel multimode rotary joint |
JP2021525381A (en) * | 2018-02-08 | 2021-09-24 | キヤノン ユーエスエイ, インコーポレイテッドCanon U.S.A., Inc | Multiple fiber optic connector |
-
1983
- 1983-06-28 JP JP11778183A patent/JPS607415A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4860559A (en) * | 1986-01-11 | 1989-08-29 | Camber International Limited | Information transfer |
EP0293568A1 (en) * | 1987-03-31 | 1988-12-07 | Siemens Aktiengesellschaft | Switching device for optical fibres |
EP0379192A2 (en) * | 1989-01-19 | 1990-07-25 | Alcatel N.V. | Fiber optic switch |
US7724996B2 (en) * | 2007-01-24 | 2010-05-25 | Schleifring Und Apparatebau Gmbh | Two-channel multimode rotary joint |
JP2021525381A (en) * | 2018-02-08 | 2021-09-24 | キヤノン ユーエスエイ, インコーポレイテッドCanon U.S.A., Inc | Multiple fiber optic connector |
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