EP0620926A1 - Fiche pour un connecteur enfichable pour fibres optiques - Google Patents

Fiche pour un connecteur enfichable pour fibres optiques

Info

Publication number
EP0620926A1
EP0620926A1 EP93908904A EP93908904A EP0620926A1 EP 0620926 A1 EP0620926 A1 EP 0620926A1 EP 93908904 A EP93908904 A EP 93908904A EP 93908904 A EP93908904 A EP 93908904A EP 0620926 A1 EP0620926 A1 EP 0620926A1
Authority
EP
European Patent Office
Prior art keywords
plug
pin
spring
plug according
parts
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.)
Withdrawn
Application number
EP93908904A
Other languages
German (de)
English (en)
Inventor
André Gehri
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.)
G B F FIBROPTIC AG
Original Assignee
G B F FIBROPTIC AG GEHRI WALTER ANDRE
G B F FIBROPTIC AG
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 G B F FIBROPTIC AG GEHRI WALTER ANDRE, G B F FIBROPTIC AG filed Critical G B F FIBROPTIC AG GEHRI WALTER ANDRE
Publication of EP0620926A1 publication Critical patent/EP0620926A1/fr
Withdrawn legal-status Critical Current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
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
    • G02B6/3821—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
    • 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
    • G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
    • 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
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means

Definitions

  • the invention relates to a plug for a plug connection of optical waveguides.
  • plug connections are required wherever no continuous optical waveguides can be provided, e.g. for couplings between railway wagons, etc.
  • Fig. 1 shows examples of known plugs from the prior art, as they are used as standard.
  • Fig. La shows a connector, in which two pins 1a and 1b are plugged together in a centering coupling sleeve 2a.
  • the pins 1 are highly precise guide parts, in the center of which the thin optical waveguide is held.
  • the ground ends of the respective optical waveguides must face each other as centered as possible in order not to suffer transmission losses during light transmission. It is also important that the pins 1 or the ends of the optical fibers come as close as possible.
  • the last-mentioned condition is solved well by a construction according to FIG.
  • the pins 1 or the ends of the optical waveguides come to rest outdoors, since in the case of FIG. 1a the sleeve 2a remains on the pin 1 * a or since the Andrückfe ⁇ 3a according to FIG. 1c the pin 1c forward into the shown Position presses.
  • the optical waveguides or their ends are unprotected in these positions and can easily be contaminated or damaged by moisture, dust, dirt or body fluids - when the pins 1 are touched with the fingers - which can lead to reduced transmission performance or failures when the connectors are reused later can.
  • the invention has for its object to provide a connector that does not release the optical fiber end even in the non-connected state and thus protects against unwanted access, dust, etc.
  • the invention includes further problem solutions and variants or configurations which result from the description of the figures.
  • the description of the figures relates to exemplary embodiments which do not restrict the scope of protection of the claims.
  • the figures are described coherently; same parts have the same reference numerals; Different parts have the same reference numerals with different indices. They show
  • FIG.3 two multi-pin connector in the unconnected state; 4 shows the connector according to FIG. 3 in the assembled, not yet locked state and FIG. 5 shows the connector according to FIGS. 3 and 4 in the locked state.
  • the technical implementation of the invention according to FIG. 2 consists of a conventional pin 1d, which is longitudinally displaceable in a plug housing 5a, a return spring 6a between support sleeves 7a, b and a - only symbolically indicated - bolt 8a, which ends with one a housing-fixed stop 9a cooperates and is connected at the other end to the pin 1d or its base part 10a.
  • the support sleeve 7a is rigidly connected to the inside of the cylindrical connector housing 5a, while the support sleeve 7b is fixed to the pin 1d.
  • the connections can be made by pressing, screw threads or the like. be made.
  • the return spring 6a thus pressurizes the pin 1d against the plugging direction, so that the pin end 11a is held pressed into the protected position 11a1 when the plug is not connected or locked.
  • the position shown is achieved by advancing the base part 10a in the insertion direction (arrow) against the force of the springs 6a until the bolt 8a locks on the stop 9a.
  • the stop 9a is itself ring-shaped and can be moved longitudinally on the plug housing 5a slightly against the force of a pressure spring 3b.
  • the symbolically represented pressure spring 3b consists of an elastic sealing ring with a greater restoring force than the restoring force of the return spring 6a.
  • the principle of the invention also works without a pressure spring 3, but a variant with preferred, since then the criterion of the pins 1 resting snugly against one another is better met in the plug-connected state. With normal plug adjustment, the ends 11 of the pins 1 are located such that they would overlap when plugged together. This theoretical overlap is compensated for by the sprung mobility of the stop 9a and with it the bolt 8a and the base body 10a.
  • the latch 8a When a plug connection is opened, the latch 8a is first opened by the fitter, after which the pin 1d moves into position 11a1 and thus comes into a protected position, after which the plug connection can be opened completely without any risk.
  • multi-pole connectors according to FIGS. 3 to 5 are also constructed, with a bayonet locking sleeve 8b being provided instead of the lock 8a, which sleeve can be locked with a bayonet receiving sleeve 9b of the same type.
  • the sleeves 8b and 9b also serve as plug housings.
  • the bayonet locking sleeve 8b is sealed against a holding part 15 by means of a sealing ring 14b.
  • the holding part 15 has bores which receive the base body 10b of the pins 1e.
  • the base bodies 10b are held axially immovably on the holding part by support rings 7e and driving rings 13a.
  • Return springs 6b are arranged concentrically around the base body 10b, which are supported on the support rings 7e or hold the base body 10b and with them the holding part 15 and the bayonet closure sleeve 8b in the direction of the optical waveguide 12c (against the locking direction). At the other end, the return springs 6b are supported on a guide part 16, which in turn is axially displaceably held in the bayonet closure sleeve 8b.
  • the guide part 16 has via bores 18a, which axially guide the pins 1e.
  • the guide part 16 On one shoulder, the guide part 16 carries a second sealing ring 14a, which seals it in contact with the bayonet receiving sleeve 9b, so that no contaminants can penetrate into the space between the pin ends 11b and c when the plug connection is made.
  • the second connector part designed as a female connector, has in its bayonet receiving sleeve 9b an axially displaceable centering part 17 with bores 18b which receive centering sleeves 2b.
  • the centering sleeves 2b serve, as in the prior art according to FIG. 1a, for centering two pins 1 inserted against one another - in this case 1e and 1f.
  • the centering part 17 or the centering sleeves 2b center pins 1f or their base body 10c.
  • the base body 10c carry support rings 7d, which are spring-loaded in the insertion direction by pressure springs 3c.
  • the pressure springs 3c are supported against a support part 19 which is connected to the bayonet receiving sleeve 9b so as to be non-displaceable — if necessary in one piece.
  • the pressure springs 3c have the task, similar to the state of the art according to FIG. 1c, of pressing the pins If in the direction of the pins 1e, or they should, if the pins 1e are due to tolerance-related differences in length when inserting or locking of the plug press too hard on the pin ends 11c of the pins 1f, allowing springy evasion.
  • Fig. 4 shows the position when loosely merging the two connector parts before locking. It can be seen that the pin ends 11b remain in a protected position 11b1 until the end, in which they are kept away from any unintentional access when open.
  • a guide pin 20 of the bayonet receiving sleeve 9b engages in an axial guide groove 21 on the guide part 16 in order to achieve the correct positioning of the various pins 1 relative to one another and to prevent rotation.
  • lugs 22 of the bayonet locking sleeve 8b engage (only one symbolically shown) in bayonet grooves 23 on the outside of the bayonet receiving sleeve 9b.
  • the guide part 16 closes flush with the centering part 17 and the respective pin ends 11 lie opposite one another.
  • the next step in producing the plug connection namely the locking, is shown in FIG. 5.
  • the bayonet locking sleeve 8b, the holding part 15, the base body 10b and thus the pins 1e are displaced in the insertion direction against the force of the return springs 6b.
  • the pins 1e penetrate into the centering sleeves 2b and are thus struck centrally on the pin ends 11c of the pins 1f.
  • the bayonet locking sleeve 8b By turning the bayonet locking sleeve 8b, the lugs 22 are brought to their locking point 24 in the bayonet receiving sleeve 9b so that they snap into place.
  • the invention thus enables an optimally protected and sealed against the environment connector between optical fiber ends.
  • the invention is not restricted by the exemplary representation;
  • the pressure springs 3c can be dispensed with, or they could also be arranged approximately in the area of the sealing ring 14b.
  • the shown return positions of the pins 1 are not to be understood quantitatively. Thus, shorter or longer return positions can be selected within the scope of the invention.
  • the cable-side plug ends are not shown or described in more detail, since conventional end configurations can be provided for this, as are already used, for example, with conventional plug connections between wagons.
  • Part 17 and part 9b could also be formed in one piece, which has the advantage of requiring fewer moving parts.
  • Part 19 is, as not shown in more detail, fastened in part 9b.

Landscapes

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

Abstract

L'invention concerne une fiche pour fibres optiques, pour connecteurs enfichables situés entre des fibres optiques (12). Dans l'état antérieur de la technique, les fiches présentaient l'inconvénient qu'un monteur risque par inadvertance d'être relativement aisément en contact avec l'extrémité polie de la fibre optique (12), dans la broche (1) qui le guide. Selon l'invention, un ressort de retenue (6) est prévu et sert à rétracter la broche (1) dans une position protégée, lorsque la fiche est en position de repos.
EP93908904A 1992-11-06 1993-04-03 Fiche pour un connecteur enfichable pour fibres optiques Withdrawn EP0620926A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH345092 1992-11-06
CH3450/92 1992-11-06
PCT/EP1993/000832 WO1994011767A1 (fr) 1992-11-06 1993-04-03 Fiche pour un connecteur enfichable pour fibres optiques

Publications (1)

Publication Number Publication Date
EP0620926A1 true EP0620926A1 (fr) 1994-10-26

Family

ID=4256210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93908904A Withdrawn EP0620926A1 (fr) 1992-11-06 1993-04-03 Fiche pour un connecteur enfichable pour fibres optiques

Country Status (5)

Country Link
US (1) US5581645A (fr)
EP (1) EP0620926A1 (fr)
JP (1) JPH07502841A (fr)
AU (1) AU666370B2 (fr)
WO (1) WO1994011767A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751477B1 (fr) * 1996-07-17 1998-10-23 Socapex Amphenol Dispositif a compensation de jeu de mise en reference d'une terminaison de conducteurs par rapport a une autre piece
DE19807596C2 (de) * 1997-02-22 1999-11-11 Spinner Gmbh Elektrotech LWL-Steckverbindung
DE19728960C1 (de) * 1997-06-30 2000-07-06 Siemens Ag Optischer Mehrfachverbinder
FR2774181B1 (fr) * 1998-01-28 2001-10-26 Proptic Dispositif de connexion/deconnexion de deux fibres optiques individuelles et epanouisseur-connecteur pour fibres optiques
US6565264B1 (en) 2000-01-18 2003-05-20 Amphenol Corporation Pin and socket fiber optic termini
JP4447814B2 (ja) * 2000-02-11 2010-04-07 フーバー ウント ズーナー アーゲー 複数の光ファイバケーブルを同時に接続する光通信用差込コネクタ及びそのためのインサート
US6604864B2 (en) * 2001-04-17 2003-08-12 Itt Manufacturing Enterprises, Inc. Optic fiber connector spring retainer
JP3989316B2 (ja) * 2002-07-15 2007-10-10 株式会社巴川製紙所 光ファイバの接続方法および光ファイバの接続構造
IL151954A (en) * 2002-09-26 2008-11-26 Ilan Greenberg Connector to optical cable
US6945702B2 (en) * 2003-11-21 2005-09-20 Itt Manufacturing Enterprises, Inc. Fiber optic connector with mating features
GB2525657B (en) * 2014-05-01 2018-01-31 Xyratex Tech Limited An optical connector assembly, an optical printed circuit board assembly, an insert, and a method of manufacturing an optical connector assembly
FR3028623B1 (fr) * 2014-11-17 2018-02-02 Souriau Boitier pour connecteur optique a alignement automatique

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225214A (en) * 1978-09-18 1980-09-30 Trw Inc. Connector construction
FR2493538A1 (fr) * 1980-11-04 1982-05-07 Alliance Tech Ind Procede et dispositif de connexion de deux fibres optiques
US4411491A (en) * 1981-09-10 1983-10-25 Trw Inc. Connector assembly with elastomeric sealing membranes having slits
US4787706A (en) * 1987-02-03 1988-11-29 American Telephone And Telegraph Company, At&T Bell Laboratories Duplex optical fiber connector
US4789218A (en) * 1987-03-30 1988-12-06 Methode Electronics, Inc. Spring-biased fiber optic contact
US4852963A (en) * 1987-06-30 1989-08-01 American Telephone And Telegraph Company, At&T Bell Laboratories Optical fiber biconic connector
US4820185A (en) * 1988-01-20 1989-04-11 Hughes Aircraft Company Anti-backlash automatic locking connector coupling mechanism
US4880291A (en) * 1988-02-04 1989-11-14 American Telephone & Telegraph Company, At&T Bell Laboratories Optical fiber connector and methods of making
US5129023A (en) * 1991-05-14 1992-07-07 At&T Bell Laboratories Optical fiber connector having enhanced provisions for interconnection and for prevention of optical and mechanical disconnection
US5283848A (en) * 1992-12-23 1994-02-01 The Whitaker Corporation Circular multi-fiber fiber-optic connector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9411767A1 *

Also Published As

Publication number Publication date
WO1994011767A1 (fr) 1994-05-26
US5581645A (en) 1996-12-03
AU666370B2 (en) 1996-02-08
JPH07502841A (ja) 1995-03-23
AU3951693A (en) 1994-06-08

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