WO2005111685A1 - シャッター付き光コネクタ - Google Patents
シャッター付き光コネクタ Download PDFInfo
- Publication number
- WO2005111685A1 WO2005111685A1 PCT/JP2004/006448 JP2004006448W WO2005111685A1 WO 2005111685 A1 WO2005111685 A1 WO 2005111685A1 JP 2004006448 W JP2004006448 W JP 2004006448W WO 2005111685 A1 WO2005111685 A1 WO 2005111685A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shutter
- plug
- receptacle
- connection
- fiber
- Prior art date
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
- G02B6/3833—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
- G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
-
- 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
- G02B6/3893—Push-pull type, e.g. snap-in, push-on
-
- 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
- G02B6/3873—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 present invention relates to an optical connector used for a connection portion of an optical communication cable, and more particularly, to a connector plug (hereinafter simply referred to as “plug”) and a connector receptacle (hereinafter simply referred to as “receptacle”) for connector connection.
- the present invention relates to an optical connector with a shutter that has improved handling safety and dust resistance.
- An optical connector is indispensable for optical cable connection that enables large-capacity communication in the Internet society.
- the optical cable is used, for example, for the construction of a LAN between companies or within a company, and for the construction of FTTH (Fiber To The Home), which leads the optical cable to ordinary households.
- FTTH Fiber To The Home
- Japanese Patent Application Laid-Open No. 10-300985 is known as an example in which an openable shutter is provided at an opening of a plug or a receptacle in an optical connector.
- the present invention relates to an optical connector comprising a connector plug and a connector receptacle into which the plug is inserted and fitted and connected, wherein the plug and the receptacle have fiber connection ends.
- Each of the shutters is provided with a shutter for preventing or permitting movement along the optical axis for connection, and both shutters are retracted from the optical axis by the retreating means on the other side of the connection during connection, so that the plug has a
- An optical connector with a shutter for making connection with the fiber on the receptacle side by making the connection end of the fiber project outward from the inside of the shirt.
- a shutter is provided in a slide housing of the plug, and inside the shutter, a fiber bar that prevents the slide housing from retreating from the optical axis so as not to damage the connection end of the fiber. Damage prevention rods are provided.
- the gist of the optical connector with a shutter is that in an optical connector comprising a connector plug and a connector receptacle into which the plug is inserted and fitted and connected, the plug and the receptacle are connected to each other.
- Each of the shutters is provided to prevent or allow the connection end of the fiber to move along the optical axis for connection, and the plug-side shutter is inserted and fitted into the receptacle during connection.
- the connecting end of the fiber is allowed to move for connection along the optical axis by being retracted from the optical axis, and when the fiber is not connected, it is moved on the optical axis by removal from the receptacle.
- a slide housing for preventing the connection end of the fiber from moving for connection along the optical axis also serves as a shutter, and the slide side is provided on the receptacle side.
- Ujingu is that a return means for returning onto the retracting means and the optical axis of Ru is retracted from the optical axis is provided.
- a fiber connection end is provided on the plug and the receptacle.
- a shutter for preventing or allowing movement along the axis for connection is provided for each, and a shutter on the receptacle side is rotatably supported so as to open and close by a plug insertion / removal action. This is to be provided on the rear side of the receptacle at an angle.
- the fiber damage preventing rod prevents the infant or the like from mischievously retracting the slide housing on the optical axis and exposing the connection end of the fiber to the outside, thereby preventing injury to eyes and the like. Re, and protect the fiber from damage.
- the slide housing of the plug can be moved when the slide housing is retracted or returned from the optical axis, so that the plug can also be used as a shutter, thereby reducing the number of components.
- the shutter on the receptacle side is rotatably supported and tilted rearward, so that it is difficult for a child or the like to open the shutter due to mischief, thereby improving safety.
- FIG. 1 is a plan view (A), front view (B), left and right side views (C) and (D) of a plug 1 in an optical connector with a shutter according to the present invention.
- FIG. 2 A longitudinal section (A), a transverse section (B), and a section along line A—A in FIG. 1 (A) of the plug 1 along the line B—B in FIG. 1 (A).
- FIG. 3C is a perspective view (D) of the shutter le.
- FIG. 3 is a plan view (A), a front view (B), a left side view (C), and a right side view (D) of the receptacle 2 in the optical connector with shutter 3 according to the present invention.
- FIG. 4 is a cross-sectional view taken along the line BB in FIG. 3 (A).
- FIG. 5 is explanatory diagrams (A), (B), and (C) sequentially showing the connection operation in the use state of the optical connector with shutter 3 according to the present invention.
- FIG. 6 is a plan view (A), a front view (B), and a side view (C) showing a part of a cross section of a plug 9 in an optical connector with a shutter according to a second embodiment of the present invention.
- FIG. 7 is a plan view (A), a front view (B), a right side view (C), and a bottom view (D) of a plug 11 in an optical connector with shutter 13 according to a third embodiment of the present invention.
- FIG. 8 shows a receptacle 1 in an optical connector with shutter 13 according to a third embodiment of the present invention.
- 2 is a plan view (A), a longitudinal sectional view (B), a left side view (C), a right side view (D), and a bottom view (E).
- FIG. 9 An explanatory view (A) of a plug 11 and a longitudinal sectional view showing a state of connection in an optical connector with a shutter 13 according to a third embodiment of the present invention, divided into a first step and a third step. (B).
- a shutter is opened by being fitted to each other, and further, the shutter is easily opened. Explain what was prevented from being performed.
- the plug 1 in the optical connector with shutter 3 includes a plug housing la, a fixed housing lb, a slide housing lc, and a synthetic resin made of synthetic resin. It is roughly composed of a shutter le.
- a fixed housing lb for holding the optical cable 7 is fitted in the plug housing la.
- a cylindrical panel guide If protruding from the inner wall surface in the center of the fixed housing lb is supported almost horizontally in a cantilevered manner in the internal space of the plug housing la. Have been.
- the spring 4 is fitted there.
- the spring 4 is an elastic member that has one end abutting against the rear wall surface of the slide housing lc and urges the slide housing lc to push it forward.
- a fiber damage prevention rod lg protrudes forward from the tip of the panel guide If. This tip is provided at a position slightly before the position force of the shutter le.
- the slide housing lc is provided with a shutter space lh which is open upward in the vertical direction on the front side thereof.
- the shutter le shown in (D) is stored in a loosely fitted state.
- a holding spring 5 is provided. In this embodiment, one end of the holding panel 5 is locked in a notch in the upper central portion of the shutter le.
- the shutter le is pushed upward by a part of the receptacle 2 (retracting means) described later, and enters an open state that allows the fiber 6 and the fiber damage prevention rod lg to move in the connection direction. . Therefore, the shutter le may be retracted from the optical axis by the retracting means so as not to disturb the connection, and may be lifted upward or moved obliquely upward or downward.
- fiber through holes lj penetrated in the front-to-back direction are provided at two right and left sides. It is provided at a distance.
- the fiber 16 of the optical cable is passed through the through hole lj in a state of connection with the receptacle 2.
- a taper portion for opening and closing the shutter on the receptacle 2 side is formed. That is, as shown in FIGS. 1 and 2, a wall surface extends forward from the left and right end portions of the slide housing lc, and tapered portions lm and In which are inclined downward toward the front are provided there. ing.
- the wall surface is formed in an L shape in order to maintain the strength of the front end. Then, as shown in FIG. 1 (A), they are separated by a certain width a.
- the optical cable 7 is attached to the plug housing 1.
- the tip of the fiber 16 of the optical cable 7 is disposed near the entrance of the through hole lj.
- the receptacle 2 is made of a synthetic resin and is a box having one side open, and the interior is mostly a space for receiving the plug 1. .
- two rectangular through holes are provided in the upper ceiling, one of which is a hole 2a for forming a shutter storage portion, and the other is And a locking hole 2b that engages with the pawl lp (see FIG. 2A) of the fixed housing lb.
- the internal space 2c of the receptacle 2 has A tapered portion 2d as evacuation means is provided in the center, which slopes upward toward the rear.
- the width of the tapered portion 2d in the left-right direction is set to be slightly smaller than the width a because the tapered portion 2d enters the width a of the slide housing lc shown in FIG.
- a shutter storage section 2e is formed below the position of the hole 2a and at the rear of the tapered section 2d as shown in FIG.
- the storage part 2e is a concave part opened at the upper part, and slits are provided on the left and right side wall parts.
- the shutter le shown in Fig. 3 is the same as the shutter le shown in Fig. 2 (d) for common use of components.
- the ear lr of the shutter le projects out of the storage section 2e from the slit.
- the ear lr abuts on the tapered parts lm, In and moves along the inclined surface to move the shutter le up and down.
- a pressing spring 2f is provided so that the shutter le does not come out of the storage section 2e.
- the shutter le is stored in the storage part 2e, so that the through hole 2h is closed.
- the through hole 2h is opened, and the fiber damage prevention rod lg is closed. It can be inserted in the front-back direction.
- the shutter le of the storage section 2e is lifted by a lug projecting from the storage section 2e into the internal space 2c through a slit, by a taper section 1m, In at the front end of the plug 1 being provided. It is done by contact and approach.
- the plug 1 is inserted toward the opening on the front side of the receptacle 2 with the slide housing l c of the plug 1 facing forward.
- the slide housing lc enters the internal space 2c of the receptacle 2, and its tapered portions lm and In abut on the ears lr of the shutter le of the storage portion 2e. Also, almost the same Sometimes, the lower part of the tapered portion 2d on the receptacle 2 side contacts the lower end of the shutter le of the shutter space lh in the slide housing lc.
- the two fibers 6 also pass through the through hole lj (see FIG. 2 (B)) through the through hole 2g (see FIG. 3 (C) and (D)). ). Then, the fiber 6 comes into contact with the fiber on the side of the receptor nozzle 2 with a slight contact force, and an optical signal is transmitted.
- the fixed housing lb that maintains this connection state is hooked in the locking hole 2b of the receptacle 2 with the claw of the lb lp force.
- the locking function of the claw lp may be released by pressing the button Is of the fixed housing lb downward.
- the fiber 6 in the plug is provided with the ferrule 8, thereby omitting the fiber damage prevention rod lg of the first embodiment. It is an embodiment that has been performed.
- This plug 9 fixes the ferrule 8 to the fiber 6 when attaching the optical cable 7.
- the other parts of the plug 9 have the same configuration as the plug 1 and the connection operation with the receptacle 2 is the same as that of the first embodiment, so that the description is omitted.
- the connector with shutter 10 of the third embodiment according to the present invention has a plug 1
- the slide housing l la especially the front wall l ib also serves as a shutter.
- the slide housing 11a is prevented from retreating even if it is pushed backward by mischief of a baby or the like.
- the direction (upward) is orthogonal to the connection direction. And then can be evacuated.
- the receptacle 12 is provided with a dustproof shutter 12a and a tapered portion 1 ⁇ ⁇ ⁇ for moving the plug housing 11c upward.
- the plug 11 is described in detail. As shown in FIG. 7, a substantially inverted L-shaped guide groove lid for guiding the slide of the slide housing 11a is provided on a side wall of the plug housing 11c. ing.
- a through hole 1 lh for the fiber 6 is provided in the front wall l ib of the slide housing 11a, and covers the fiber 6 in the state shown in FIG.
- the slide housing 11a moves upward and retracts further backward, the fiber 6 and the vertical position are aligned, and the fiber 6 projects from the through hole lh.
- This slide The entire 1 laza of the housing replaces the shutter.
- Reference symbol l lj indicates a fixed housing for locking the optical cable 7. On this lower surface, a nail 1 lk for maintaining the connection and a release button 1 lm are provided.
- the receptacle 12 has a shutter 12a for completely closing the opening of the internal space, and a rotating shaft 12b at the upper part. Freely supported, panel 1
- the lower portion of 2a abuts the projection 12d and is provided obliquely rearward.
- a tapered portion 1 # that is inclined upward toward the rear is formed as a retracting means at a substantially central portion on the front side of the protrusion 12d. This is for pushing up the slide housing 11a.
- a locking projection 12e which is developed in a direction substantially orthogonal to the shaft is formed.
- a locking hole 12g is provided on the lower surface of the receptacle body 12f, and the claw Ilk of the plug 11 is locked at the time of connection.
- a through hole 12h for passing the fiber 6 is provided on the rear wall surface of the receptacle body 12f.
- connection and detachment of the optical connector with shutter 13 by the plug 11 and the receptacle 12 are performed in three stages as shown in FIGS. 9 (A) and 9 (B). That is, as shown in FIG. 2B, in the first stage, when the slide housing 11a of the plug 11 is inserted into the opening on the front surface of the receptacle 12, the shutter 12a is moved to the front end of the slide housing 11a. Is staked by the biasing force of the spring 1 2c and pushed upward.
- the tapered portion 11r formed in the center of the lower portion of the slide housing 11a abuts on the tapered portion 1 #.
- the slide housing 11a moves forward, it moves upward along the inclined surface of the tapered portion 1 #.
- the through hole l lh of the slide housing 11a comes to coincide with the height of the ferrule lis.
- a notch l lu (see FIGS. 8 (C) and 8 (E)) on the front wall of the slide housing 11a is located forward so that the ferrule lis can move forward. In this way, the ferrule lis is allowed to move in the connection direction (front-back direction).
- the height of the engaging projections ie is adjusted to the position of the front-rear groove above the guide groove lid. , It is possible to move forward and backward.
- the ferrule lis passes through the through hole 12h and protrudes from the front wall surface 11b of the slide housing 11a.
- the protruding ferrule lis comes into contact with the urging force of the spring lit slightly pushed back, and is connected to a ferrule (not shown) on the receptacle 12 side to transmit an optical signal.
- the button 11m of the fixed housing l lj is pressed to release the engagement of the claw Ilk. Then, the plug housing 11c and the fixed housing l lj are moved backward. The ferrule lis retreats from the protruding state to the inside of the front wall surface ib of the slide housing 11a.
- the shutter 12a expands downward by the urging force of the spring 12c, and when the plug 11 is completely removed from the receptacle 12, the lower part of the shutter 12a contacts the projection 12d, The lid is closed in a state inclined to the depth side. Further, since the slide housing 11a moves forward and moves downward, the slide housing 11a is locked by the concave portion llg, so that movement in the connection direction (front-back direction) is prevented. In addition, the phenomena 1 Is will also be protected. Of course, a dustproof effect also works.
- the depth of the nail is reduced to a small extent so that the nail can be pulled out within a certain range.
- a force that resists the force It should be released with a force greater than a certain pull-out force, so that the locking action is released. This is preferable in preventing the connector from being broken.
- the optical connector with a shutter according to the present invention is useful as a connector for an optical communication cable, and is particularly useful for handling a connector plug and a connector receptacle. Because of its high performance, safety, and dust-proofing properties, it is suitable for use in building LANs between companies or within a company, or for building FTTH (Fiber To The Home) that runs optical cables to ordinary households.
- FTTH Fiber To The Home
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006518504A JP4032073B2 (ja) | 2004-05-13 | 2004-05-13 | シャッター付き光コネクタ |
PCT/JP2004/006448 WO2005111685A1 (ja) | 2004-05-13 | 2004-05-13 | シャッター付き光コネクタ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/006448 WO2005111685A1 (ja) | 2004-05-13 | 2004-05-13 | シャッター付き光コネクタ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005111685A1 true WO2005111685A1 (ja) | 2005-11-24 |
Family
ID=35394294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/006448 WO2005111685A1 (ja) | 2004-05-13 | 2004-05-13 | シャッター付き光コネクタ |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4032073B2 (ja) |
WO (1) | WO2005111685A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009015236A (ja) * | 2007-07-09 | 2009-01-22 | Mitsubishi Cable Ind Ltd | 光コネクタプラグ |
EP4103987A4 (en) * | 2020-02-11 | 2024-03-06 | CommScope Technologies LLC | FIBER OPTICAL CONNECTOR WITH CLOSURE |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3374810B1 (en) * | 2015-11-13 | 2021-01-06 | CommScope Connectivity Belgium BVBA | Fiber optic connection system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07281055A (ja) * | 1992-05-20 | 1995-10-27 | Diamond Sa | 光ファイバ用のプラグ・コネクタ |
JPH10300985A (ja) * | 1997-04-23 | 1998-11-13 | Sumitomo Electric Ind Ltd | 多心光コネクタ |
JP2001526803A (ja) * | 1997-05-20 | 2001-12-18 | エーディーシー・テレコミュニケーションズ・インコーポレーテッド | ファイバコネクタ及びアダプタ |
JP2002258103A (ja) * | 2001-03-02 | 2002-09-11 | Hirose Electric Co Ltd | 光コネクタ |
-
2004
- 2004-05-13 WO PCT/JP2004/006448 patent/WO2005111685A1/ja active Application Filing
- 2004-05-13 JP JP2006518504A patent/JP4032073B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07281055A (ja) * | 1992-05-20 | 1995-10-27 | Diamond Sa | 光ファイバ用のプラグ・コネクタ |
JPH10300985A (ja) * | 1997-04-23 | 1998-11-13 | Sumitomo Electric Ind Ltd | 多心光コネクタ |
JP2001526803A (ja) * | 1997-05-20 | 2001-12-18 | エーディーシー・テレコミュニケーションズ・インコーポレーテッド | ファイバコネクタ及びアダプタ |
JP2002258103A (ja) * | 2001-03-02 | 2002-09-11 | Hirose Electric Co Ltd | 光コネクタ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009015236A (ja) * | 2007-07-09 | 2009-01-22 | Mitsubishi Cable Ind Ltd | 光コネクタプラグ |
EP4103987A4 (en) * | 2020-02-11 | 2024-03-06 | CommScope Technologies LLC | FIBER OPTICAL CONNECTOR WITH CLOSURE |
Also Published As
Publication number | Publication date |
---|---|
JP4032073B2 (ja) | 2008-01-16 |
JPWO2005111685A1 (ja) | 2008-03-27 |
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