WO2006057088A1 - 光コネクタプラグ及び光コネクタ - Google Patents
光コネクタプラグ及び光コネクタ Download PDFInfo
- Publication number
- WO2006057088A1 WO2006057088A1 PCT/JP2005/010108 JP2005010108W WO2006057088A1 WO 2006057088 A1 WO2006057088 A1 WO 2006057088A1 JP 2005010108 W JP2005010108 W JP 2005010108W WO 2006057088 A1 WO2006057088 A1 WO 2006057088A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plug
- plate
- optical connector
- shielding
- shielding plate
- 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
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- 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
- G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
Definitions
- the present invention relates to an optical connector plug and an optical connector that hold the tip of an optical fiber and optically connect the optical fibers.
- optical connection between optical fibers used for optical communication and the like includes an optical connector plug that holds the tip of the optical fiber, and an optical connector adapter that fixes the optical connector plugs to perform optical connection of the optical fiber. It has been carried out by a method using an optical connector having the above or by a method of welding the end faces of optical fibers.
- SC-type optical connectors that use an optical fiber holding tube with a 2.5 mm outer diameter force to make optical connections and an outer diameter force holding an optical fiber of 1.25 mm
- SC-type optical connectors that use an optical fiber holding tube with a 2.5 mm outer diameter force to make optical connections and an outer diameter force holding an optical fiber of 1.25 mm
- ber to the home has been widespread, in which the telephone network has an optical fiber for the access network that connects the subscriber line to each home and builds a high-speed communication environment.
- FTTH ber to the home
- infrared rays with a wavelength of 1.3 to 1.55 m are used for optical fiber communications.
- the power output tends to increase.
- a cover that covers the tip surface is provided on the outer periphery of the optical connector plug, and the tip surface of the optical connector plug is covered with the cover, and the tip surface of the optical fiber is contaminated with dust, fingerprints, and splashes.
- the one protected from the object has been proposed (see, for example, Patent Documents 1 and 2).
- the optical connector plug that holds the tip of the optical fiber drawn into the home due to the spread of FTTH, etc. is a force that requires high safety.
- Common SC type, MU type, etc. used in FTTH Optical connector plugs have a problem of high risk because they do not take measures to prevent irradiation light.
- Patent Documents 1 and 2 described above disclose an optical connector plug provided with a cover for protecting the end face of the optical fiber from contaminants. This cover irradiates from the end of the optical fiber. The irradiated light can also be shielded.
- the optical connector plug provided with such a cover is operated with the cover provided on the outer peripheral surface of the optical connector plug, and the outer shape of the optical connector plug is different from the conventional one. Let's do it.
- an optical connector adapter for connecting optical connector plugs to each other must be formed in a shape different from the conventional one in accordance with the shape of the optical connector plug provided with a cover, resulting in an increase in manufacturing cost. There is a problem that it ends up.
- the optical connector provided with the cover must have a new standard different from the conventional optical connector such as SC type and MU type, and the conventional optical connector such as SC type and MU type.
- SC type and MU type the conventional optical connector
- SC type and MU type the conventional optical connector
- Patent Document 1 Japanese Patent Application Laid-Open No. 7-281055 (Pages 4-6, Figs. 1, 7 and 8)
- Patent Document 2 Japanese Patent Laid-Open No. 2002-156557 (Pages 4-6, Figs. 1, 7 and 8)
- the present invention easily and surely blocks the irradiation light from the optical fino to improve safety and reduce the manufacturing cost and the introduction cost. It is an object to provide a connector.
- a first aspect of the present invention that solves the above problems includes a plug frame that holds at least a ferrule that holds an optical fiber, and a plug that penetrates in the axial direction in which the plug frame is held movably in the axial direction.
- a push-pull fastening type optical connector plug comprising a plug housing having a frame holding hole, wherein the optical connector plug is tiltably held on one side of the plug frame holding hole of the plug housing via a base end portion, and the ferrule Shielding position force that shields the distal end surface of the shield A shielding plate in which the distal end portion moves to a non-shielding position that allows movement of the plug frame, and a proximal end on the one side inside the shielding plate in the plug frame holding hole
- An operating plate that is held in a tiltable manner and that tilts together with the shielding plate by contacting or engaging with the shielding plate on the distal end side, and When the plug frame is moved to the shield position, the shield plate and the operation plate can be retracted to a storage position where the shield plate and the operation plate do not interfere with each other.
- An urging holding means for positioning and urging the shielding plate and the operation plate is provided so that the plug frame is tilted by the movement of the plug frame when the plug frame is moved to the distal end side of the plug housing.
- the shielding plate is inclined to the non-shielding position via the operation plate and allowed to move to the optical connection position of the plug housing, and the engagement claw of the optical connector plug is provided on the outer periphery of the plug frame.
- an abutting portion that abuts against the engaging claw is provided at the front end of the plug housing.
- the engaging claw abuts against the abutting portion, and when the plug frame moves to the optical connection position, a pressure provided at the tip of the plug frame The portion presses and spreads the engagement claw, releases the contact state between the engagement claw and the contact portion, and engages the engagement claw and the engagement portion.
- a connector plug There is a connector plug.
- the shielding plate and the operation plate are configured such that a distal end portion of the shielding plate is held at the base end portion of the plug frame holding hole.
- the optical connector plug is characterized by being positioned at the shielding position by abutting against the surface on the other side opposite to the side.
- the shielding plate and the operation plate are The optical connector plug is characterized in that the shielding plate is positioned and held at the shielding position by engagement with the operation plate at the shielding position.
- a tip end portion of the operation plate is in contact with the shielding plate
- the urging holding means includes the operation plate.
- the operation plate urging means that urges the shielding plate in the direction from the shielding position to the non-shielding position, and the urging plate urges the shielding plate in the direction from the non-shielding position to the shielding position with a larger urging force than the operation plate urging means.
- an optical connector plug characterized by comprising shielding plate biasing means.
- a fifth aspect of the present invention is the method according to the third aspect, wherein a tip end side of the operating plate is engaged with the shielding plate, and the urging holding means includes the shielding plate or the operating plate.
- the non-shielding position force is an optical connector plug that biases in the direction of the shielding position.
- a sixth aspect of the present invention is an optical connector plug according to any one of the first to fifth aspects, wherein the shielding plate and the operation plate are held by the plug housing. .
- the shielding plate and the operation plate are held by a shielding plate frame to form a shielding plate assembly.
- Shielding plate assembly Three-dimensional force An optical connector plug characterized by being fixed to the plug housing.
- the shielding plate is rotatably held via a shielding plate shaft provided on the base end side.
- An optical connector plug is characterized in that the operation plate is rotatably held via an operation plate shaft provided on the base end side.
- the shielding plate and the operation plate have a leaf spring force, and the shielding plate and the operation plate themselves have the attachment.
- the optical connector plug is characterized by being a force holding means.
- a tenth aspect of the present invention is characterized in that, in any one of the first to ninth aspects, the plug housing has a shape to be engaged with an SC-type or MU-type optical connector adapter. There are optical connectors and kuta plugs.
- the optical connector plug is provided so as not to contact the front end surface of the cable.
- a contact recess is provided at a distal end portion of the operation plate, and the plug frame is at the housing position.
- the optical connector plug is characterized in that the contact recess is disposed at a position where it comes into contact with the side surface of the ferrule when the operation plate is moved to the ferrule side.
- a thirteenth aspect of the present invention is an optical connector comprising the optical connector plug according to any one of the first to twelfth aspects.
- the plug frame is simply moved in the plug housing, and the shielding plate is inclined to the shielding position that shields the tip end surface of the ferrule, thereby shielding the tip end surface of the ferrule, and the optical connector.
- the tip force of the plug can be easily and reliably blocked from irradiating light, and the safety of the optical connector plug can be enhanced.
- simply moving the plug frame in the plug housing causes the shielding plate to tilt to the non-shielding position, and the shielding plate allows the plug frame to move to the optical connection position of the plug housing at the non-shielding position. Therefore, it is possible to easily and surely release the irradiation light of the optical connector plug and perform optical connection.
- the outer shape of the optical connector plug can be the same as that of a conventional SC-type or MU-type optical connector plug. For this reason, the optical connector plug can be connected to the conventional SC-type or MU-type optical connector adapter, and the manufacturing cost and the introduction cost can be reduced.
- the plug frame is moved to the optical connection position before the engaging claw of the optical connector adapter and the optical connector plug are engaged, and the shielding plate is moved. Since it is moved to the non-shielding position, the shield plate is prevented from coming into contact with the optical connector adapter member when moving to the non-shielding position. Can be prevented from being deformed or broken.
- FIG. 1 is a perspective view and an exploded perspective view of an optical connector plug according to Embodiment 1 of the present invention.
- FIG. 2 is a plan view of an optical connector plug according to Embodiment 1 of the present invention and a cross-sectional view of an essential part thereof.
- FIG. 3 is a cross-sectional view of a shielding plate assembly according to Embodiment 1 of the present invention.
- FIG. 4 is an exploded perspective view of the shielding plate assembly according to Embodiment 1 of the present invention.
- FIG. 5 is an exploded perspective view in which a part of the optical connector adapter according to Embodiment 1 of the present invention is cut away.
- FIG. 6 is a cross-sectional view showing the connection operation between the optical connector plug and the optical connector adapter according to Embodiment 1 of the present invention.
- FIG. 7 is a cross-sectional view showing the connection operation between the optical connector plug and the optical connector adapter according to Embodiment 1 of the present invention.
- FIG. 8 is a cross-sectional view showing the connection operation between the optical connector plug and the optical connector adapter according to Embodiment 1 of the present invention.
- FIG. 9 is a perspective view and a plan view of an optical connector plug according to Embodiment 2 of the present invention.
- FIG. 10 is a cross-sectional view of a main part of an optical connector plug according to Embodiment 2 of the present invention.
- FIG. 11 is a perspective view and a plan view of an optical connector plug according to Embodiment 3 of the present invention.
- FIG. 12 is a cross-sectional view of main parts of an optical connector plug according to Embodiment 3 of the present invention.
- FIG. 13 is a perspective view and a plan view of an optical connector plug according to Embodiment 4 of the present invention.
- FIG. 14 is a cross-sectional view of main parts of an optical connector plug according to Embodiment 4 of the present invention.
- FIG. 1 is a perspective view and an exploded perspective view of an optical connector plug of the present invention according to Embodiment 1
- FIG. 2 is a plan view and a sectional view taken along line AA ′ and a sectional view taken along line BB ′. .
- the optical connector plug 10 of the present embodiment is plug-nosing 20 that fits into an SC-type optical connector adapter, and is held in the plug-nosing 20 so as to be movable in the axial direction.
- a plug frame 30, a ferrule 40 that holds an optical fiber for optical connection and a rear force of the plug frame 30 is inserted, a stop ring 50 whose front end engages with a rear end of the plug frame 30, and a ferrule 40 And the stop ring 50, and a biasing spring 60 that biases the ferrule 40 toward the front end in the axial direction, and a shield that is provided on the plug housing 20 and shields the front end surface of the ferrule 40.
- a shielding plate assembly 100 having a plate 70 and an operating plate 80.
- the ferrule 40 includes a ferrule tubular body 41 having an outer diameter of 2.5 mm, and a collar member 42 fitted to one end of the ferrule tubular body 41.
- the ferrule tubular body 41 has a substantially cylindrical shape, and an optical fiber insertion hole 41a for inserting and holding the optical fiber penetrating in the axial direction is provided therein.
- the rear end of the optical fiber insertion hole 41a is provided with a tapered portion 41b whose inner diameter is gradually increased toward the opening side.
- the tip of the optical fiber can be prevented from being broken or broken by contacting the end face of the ferrule tubular body 41.
- ferrule tubular body 41 examples include ceramic materials such as zirconia, plastic materials, glass materials such as crystallized glass, borosilicate glass, and quartz.
- an optical fiber core that inserts and holds an optical fiber core coated on the outer periphery of the optical fiber in the axial direction is inserted into the collar member 42 fitted to the rear end portion of the ferrule tubular body 41.
- each key groove 44 is provided at equal intervals in the axial direction at four locations at intervals of 90 degrees in the circumferential direction.
- the key grooves 44 are plugs which will be described in detail later.
- the number, position, depth, shape, and the like of the key grooves 44 are not particularly limited, and may be appropriately determined according to the plug frame 30 that positions the ferrule 40.
- the material of the collar member 42 is not particularly limited, and examples thereof include metal materials such as stainless steel, brass, and iron, and resin materials such as plastic.
- the collar member 42 is formed of stainless steel.
- the plug frame 30 has a hollow quadrangular prism shape, and is provided with a ferrule insertion hole 31 into which a ferrule 40 and a biasing spring 60 penetrating in the longitudinal direction can be inserted! / .
- the ferrule insertion hole 31 has an inner diameter that is larger than the outer diameter of the ferrule tubular body 41 and smaller than the collar portion 43 so that only the tip of the ferrule tubular body 41 protrudes.
- An existing ferrule protrusion 32 is provided.
- the plug frame 30 is formed with two engagement holes 33 that communicate with the ferrule insertion hole 31 and open to the outer periphery.
- the engagement hole 33 has a stroke which will be described in detail later.
- the two opposing opposing surfaces of the outer periphery of the plug frame 30 are provided with a second restriction projection 34, and when the plug frame 30 is held in the plug nosing 20, The plug frame 30 is held in a state where movement of the plug frame 30 toward the rear end side in the axial direction is restricted by the second restriction protrusion 34.
- a pair of pressing portions 35 having a plate shape are provided on the outer periphery on the distal end side of the second engagement protrusion 34 of the plug frame 30 so as to project a certain amount from the distal end surface.
- a groove shape that is engaged with the engaging claw of the optical connector adapter and holds the optical connector plug 10 and the optical connector adapter in a connected state.
- the engaging portion 36 is provided on the base end side of the pressing portion 35 of the plug frame 30, a groove shape that is engaged with the engaging claw of the optical connector adapter and holds the optical connector plug 10 and the optical connector adapter in a connected state.
- the pressing portion 35 as described above makes contact between the plug housing 20 and the engaging claw of the optical connector adapter at the tip.
- the engaging claw and the engaging portion 36 are engaged by releasing.
- a notch portion 37 in which the rear end force is notched by a predetermined length in the axial direction. It is provided.
- the notch 37 can elastically deform the plug frame 30 to engage the stop ring 50 with the rear end of the plug frame 30.
- the positioning protrusion 55 of the stop ring 50 is engaged with the notch 37, whereby the rotation of the stop ring 50 and the plug frame 30 about the axis is performed, and the stop ring 50
- the engagement protrusion 54 and the engagement hole 33 of the plug frame 30 can be positioned and engaged.
- the stop ring 50 is formed of a cylindrical metal that is fitted to the rear end portion of the plug frame 30 and has a through-hole optical fiber core through-hole 51 that can pass through the optical fiber core wire. Yes.
- a communication hole 52 into which the urging spring 60 can be inserted is provided at the distal end side of the optical fiber core wire insertion hole 51.
- a step portion is formed by the inner diameter difference between the optical fiber core wire insertion hole 51 and the communication hole 52. 53 is provided.
- the urging spring 60 is held in the communication hole 52, and the rear end side of the collar member 42 of the ferrule 40 is inserted into the urging spring 60. Then, one end of the biasing spring 60 The ferrule 40 is urged toward the front end side with respect to the plug frame 30 by contacting the rear end surface of the flange portion 43 and the stepped portion 53 of the other-end force stop ring 50. The front end surface abuts on the ferrule projecting hole 32, and is biased and held in a state where movement toward the front end side is restricted. At this time, the protruding amount of the front end surface of the ferrule 40 protruding from the front end surface of the plug frame 30 is 1.9 to 2. Omm in this embodiment.
- the ferrule 40 is restricted from moving in the rotational direction around the shaft because the key groove 44 of the collar portion 43 is engaged with the key groove protrusion 32a of the ferrule insertion hole 31. Is held in the locked state.
- two engaging protrusions 54 protruding into the engaging hole 33 of the plug frame 30 are formed on the outer periphery on the tip end side of the stop ring 50 at positions facing each other.
- the engagement protrusion 54 has a tapered outer peripheral surface whose outer diameter gradually decreases toward the tip, and is fixed by engaging with the engagement hole 33 of the bracket frame 30.
- a positioning protrusion 55 that protrudes into the slit portion 37 when being held by the plug frame 30 is provided on the outer periphery of the stop ring 50.
- the positioning projection 55 is inserted into the slit 37 of the plug frame 30 from the rear end side, so that the rotation direction around the axis of the stop ring 50 is increased. Positioning has been performed. Further, the positioning projection 55 and the slit portion 37 are engaged with each other, so that the stop ring 50 is prevented from rotating with respect to the plug frame 30 and the engagement between the engagement projection 54 and the engagement hole 33 is released. To prevent it from happening.
- a boot 56 for holding an optical fiber cable coated on the outer periphery is fitted to the optical fiber core coated on the outer periphery of the optical fiber at the rear end of the stop ring 50.
- the boot 56 is formed of an elastic material such as rubber or a resin material such as plastic. Since the boot 56 is gripped when the force plug frame 30 described later is moved in the plug housing 20 in detail, an easily gripping material may be selected as appropriate.
- the plugno and the winging 20 have a hollow quadrangular prism shape and hold the plug frame 30 holding the ferrule 40 movably in the axial direction.
- a holding hole 21 is provided in the axial direction.
- a first restricting protrusion 22 that protrudes into the plug frame holding hole 21 and has an inclined surface on the rear end side.
- the first restriction protrusion 22 engages with the second restriction protrusion 34 provided on the outer periphery of the plug frame 30, so that the plug frame 30 is inserted into the plug housing 20 in the axial rear end side. It is held in a restricted state.
- a concave portion 23 with which the distal end portion of the shielding plate 70 abuts is provided on one surface of the plug frame holding hole 21 of the plug housing 20.
- the recess 23 is formed with a curved surface whose tip side is directed toward the tip side of the plug housing 20 and the depth gradually decreases, and the rear end side is a stop surface that forms a step with the inner surface of the plug frame 21 after holding the plug frame. It is formed of 23a.
- the shielding plate 70 is positioned in an inclined state when the tip of the shielding plate 70 abuts against the stop surface 23a of the recess 23 when it is tilted within 21 after holding the plug frame. Is done.
- a communication hole 24 is provided for communicating the plug frame holding hole 21 with the outside. Through 24, the engaging claw of the optical connector adapter and the engaging portion 36 of the plug frame 30 are engaged.
- the plug housing 20 is formed with two beam portions 25 remaining on the tip side by forming the communication holes 24.
- This beam portion 25 is provided at a position inside the pressing portion 35 of the plug frame 30 when the plug frame 30 is held in the plug housing 20.
- the plug frame 30 is held in a state in which the movement toward the tip end side is restricted with respect to the plug housing 20.
- the plug frame 30 is held so as to be movable in the axial direction between the first restricting protrusion 23 of the plug nosing 20 and the beam portion 25 by a predetermined amount.
- the optical connector plug 10 is optically connected to another optical connector plug via the optical connector adapter at the position where the plug frame 30 has moved to the distal end side of the plug housing 20.
- the position of the plug frame 30 to which the optical connector plug 10 is optically connected to the plug nosing 20 was defined as the optical connection position.
- plug frame 3 0 moves to the rear end side of the plug housing 20 and is not optically connected!
- the position of the plug frame 30 with respect to the plug nosing 20 is shielded by the shielding plate 70 described later in detail. The storage position was used.
- protrusions 26 for contact that protrude outward.
- a stepped contact portion 27 is provided on the tip side of the contact projection 26. The abutment portion 27 is configured to cause the engagement claw of the optical connector adapter to abut when the force optical connector plug 10 to be described later in detail is inserted into the optical connector adapter. This is to prevent getting over.
- the rear end surface of the abutment protrusion 26 is an engagement release portion 28 that is inclined toward the rear end side of the plug housing 20.
- This disengagement portion 28 also pulls out the plug nose 20 and the state of the engagement between the engagement tab 36 of the optical connector adapter and the engagement portion 36 of the plug frame 30, so that the plug nosing 20 is connected to the plug frame 30.
- the engaging claw is pushed and widened by the disengaging part 28 to release the engaging state between the engaging claw and the engaging part 36, and the optical connector adapter force is also used to pull out the optical connector plug 10. Is.
- a plug hole 20 is provided on the outer periphery of one side of the opposing surface, provided with a communication hole 24 for the plug and the wedge 20.
- a protruding key 20a is provided for positioning the optical connector adapter in the rotational direction around the axis when connected to the optical connector adapter.
- a fixing hole 29 for communicating the plug frame holding hole 21 with the outside is provided on the opposite side of the plug housing 20 from the key 20a.
- the shielding plate assembly 100 is fixed to the fixing hole 29.
- one of the abutment protrusions 26 of the plugno and the udging 20 described above is provided on the key 25 side of the plug housing 20, and the other is provided on the shielding plate assembly 100 fixed to the fixing hole 29. It is
- FIG. 3 is an exploded perspective view of the shielding plate assembly
- FIG. 4 is a cross-sectional view of the main part of the shielding plate assembly.
- the shielding plate assembly 100 includes the shielding plate frame 101 and the shielding plate frame 101. Positioning and biasing the shielding plate 70 and the operation plate 80 so that the shielding plate 70 and the operation plate 80 held in place and the shielding plate 70 is in a shielding position inclined to the position facing the tip surface of the ferrule 40. It is composed of urging holding means 90.
- the shielding plate frame 101 has a plate shape so that the shielding plate 70 and the operation plate 80C do not restrict the movement of the plug frame 30 when the shielding plate 70 and the operation plate 80 are in the non-shielding position.
- An accommodating portion 102 is provided in which the shielding plate 70 and the operation plate 80C are accommodated.
- the accommodating portion 102 is formed by reducing the thickness compared to both sides. Further, both sides formed thicker than the accommodating portion 102 of the shielding plate frame 101 serve as a frame portion 101a for holding the shielding plate 70 and the operation plate 80 in a tiltable manner and increasing the rigidity of the shielding plate frame 101 itself. ing. Further, as described above, the contact projection 26, the contact portion 27, and the engagement release portion 28 are provided on the frame portion 101a of the shielding plate frame 101.
- the shielding plate frame 101 can be formed by molding a resin such as plastic.
- the shielding plate frame 101 can be easily mass-produced with high accuracy and at low cost.
- the shielding plate 70 is made of a plate-like member and has a narrow tip end side. Further, the shielding plate 70 is held so that the base end portion thereof is tiltable via the shielding plate shaft 71 on the rear end side of the frame portion 101 a of the shielding plate frame 101. The shielding plate 70 rotates about the shielding plate shaft 71 from the position where the tip portion abuts against the housing portion 102 of the shielding plate frame 101 toward the recess 23 on the opposite side of the fixing hole 29 of the plug frame 20. It is provided to do.
- the front end portion of the shielding plate 70 formed narrower moves toward the concave portion 23 side of the plug housing 20, the front end portion contacts the stop surface 23a of the concave portion 23 of the plug frame holding hole 21 at a predetermined inclination angle. It is formed with the contact length.
- the shielding plate 70 has a narrow distal end abutted against the stop surface 23a of the recess 23 of the plug frame holding hole 21, closes the plug frame holding hole 21, and shields the distal end surface of the ferrule 40. From the position, the tip part comes into contact with the accommodating part 105 of the shielding plate frame 101 and is inclined to the non-shielding position where the movement of the plug frame 30 is allowed. At this time, the shielding plate 70 of the present embodiment is formed to have a narrow width only at the tip portion, and the tip portion is provided so as to protrude into the concave portion 23 of the plug housing 20. As shown in (a) In addition, almost all of the plug frame holding hole 21 can be blocked, and the optical connector plug 10 can reliably prevent light from leaking.
- the material of the shielding plate 70 is not particularly limited as long as it is a durable material, and examples thereof include a metal material such as stainless steel and a resin material such as plastic. .
- the shielding plate 70 is made of stainless steel.
- the operation plate 80 includes a plate-shaped plate portion 82 and a pair of operation plate frame portions 83 provided with tips protruding from both sides of the plate portion 82.
- the operation plate frame 83 is formed thicker than the plate portion 82, and enhances the rigidity of the operation plate 80 itself.
- the operation plate 80 is formed with an operation plate shaft 81 at the base end, and the operation plate 80 is connected to the shielding plate 70 of the frame portion 101a of the shielding plate frame 101 via the operation plate shaft 81. It is rotatably held on the rear end side.
- the operation plate 80 is provided with an operation plate shaft 81 at the base end portion, and is held on the frame portion 101a of the shielding plate frame 101 via the operation plate shaft 81 so as to be tiltable. Te!
- Such an operating plate 80 is provided such that the tip of the operating plate frame 83 abuts against the shielding plate 70 and is inclined to the shielding position and the non-shielding position together with the shielding plate 70.
- the operation plate 80 is a regulating surface 84 whose base end side surface is inclined, and when the operation plate 80 is inclined together with the shielding plate 70 to the shielding position, The movement of the operation plate 80 toward the ferrule 40 side is restricted by the restriction surface 84 coming into contact with the step formed by the accommodating portion 105 of the shielding plate frame 101. That is, when the operating plate 80 is tilted toward the ferrule 40, the operating plate 80 comes into contact with the front end surface of the ferrule tubular body 41 and scratches the front end surface of the ferrule cylindrical body 41, and the optical connector plug. When 10 is optically connected, problems such as optical loss will occur.
- the regulating surface 84 of the operation plate 80 abuts against the step of the shielding plate frame 101, the inclination of the operation plate 80 toward the ferrule 40 is restricted. It is possible to prevent the ferrule tubular body 41 from coming into contact with the distal end surface and to prevent the ferrule tubular body 41 from being damaged.
- the operation plate 80 can be formed by molding a resin material such as plastic. By molding the operation plate 80 with a resin material in this way, the operation plate 80 can be easily mass-produced with high accuracy and at low cost.
- the operation plate 80 is not limited to a resin material, and for example, a metal material such as stainless steel is used. Can do.
- the operation plate frame portion 83 of the operation plate 80 is chamfered in the longitudinal direction, so that when the operation plate 80 is accommodated in the accommodation portion 105 together with the shielding plate 70, the action frame 80 contacts the plug frame 30. This prevents the contact and prevents the plug frame 30 from moving to the optical connection position.
- the shielding plate assembly 100 having the shielding plate 70 and the operation plate 80 is such that the shielding plate 70 and the operation plate 80 do not interfere with the ferrule 40 and the plug frame 30 at the shielding position, and the optical connector plug 10.
- the shield plate 70 is appropriately provided at a position where the shield plate 70 does not break by abutting against a member such as a split sleeve in the optical connector adapter when connected to the optical connector adapter.
- the operation plate 80 of the present embodiment is provided with the operation plate frame 83 protruding from the front end side of the plate portion 82, the operation plate 80 may be provided in the vicinity of the ferrule tubular body 41.
- the plate portion 82 does not contact the tip surface of the ferrule tubular body 41. That is, the operation plate 80 of the present embodiment can be provided in the vicinity of the ferrule tubular body 41, which prevents the optical connector plug 10 from being lengthened.
- the urging holding means 90 urges and positions the shielding plate 70 and the operation plate 80 so that the shielding plate 70 is in the shielding position.
- the urging holding means 90 of the present embodiment is formed of a spring provided via the urging shaft 91 on the tip side from the shielding plate 70 of the shielding plate frame 101, and one end abuts against the shielding plate 70.
- the non-shielding position force is also urged to the shield position by abutting against the accommodating portion 102 of the shield plate frame 101.
- the shield plate assembly 100 can be formed by assembling the shield plate frame 101, the shield plate 70, the operation plate 80C, and the urging holding means 90 in advance.
- the shield plate assembly 100 assembled in advance is fixed to the fixing hole 29 of the plug housing 20 by bonding or welding with an adhesive.
- the shielding plate assembly 100 in which the shielding plate frame 101, the shielding plate 70, the operation plate 80, and the urging holding means 90 are assembled in advance is fixed to the plug housing 20, thereby improving the assembly workability. As a result, the assembling time can be shortened and the assembling cost can be reduced.
- the shielding plate 70 is moved by moving the plug frame 30 to the rear end side of the plug housing 20, that is, the accommodation position. Then, it is biased to the shielding position by the biasing holding means 90 and tilted. Thereby, the shielding plate 70 shields the tip surface of the ferrule 40 so that the tip force of the optical connector plug 10 is not irradiated with light. At this time, the operation plate 80 is also urged by the urging / holding means 90 via the shielding plate 70, so that the tip portion is in contact with the shielding plate 70.
- the plug frame 30 is moved to the front end side of the plug and the lousing, that is, the optical connection position, so that the front end edge of the plug frame 30 is moved to the operation plate 80 as shown in FIG. Abutting and tilting the operating plate 80, and the tip of the tilted operating plate 80 presses the shielding plate 70 against the urging force of the urging holding means 90. Tilt to the housed unshielded position. As a result, the tip surface of the ferrule 40 is not shielded but exposed. Then, the accommodating position force of the plug frame 30 can also be moved to the optical connection position simply by grasping the plug frame 30 and inserting it into the optical connector adapter.
- FIG. 5 is an exploded perspective view in which a part of the optical connector adapter is cut away.
- the optical connector adapter 110 to which the optical connector plug 10 is connected to the present invention is SC type, and the sleeve for optical connection 120 and the sleeve for sandwiching the optical connection sleeve 120 therein.
- a holder 130 and a holding member 150 comprising a nosing 140.
- the optical connection sleeve 120 has a cylindrical shape formed of metal or ceramic, and is provided with a slit 121 penetrating in the axial direction.
- the optical connection sleeve 120 is formed with an inner diameter slightly smaller than the outer diameter of the ferrule tubular body 41 of the optical connector plug 10 that holds the optical fiber.
- the cylindrical body 41 is held in close contact with the inner surface so as to face each other.
- the inner diameter of the optical connection sleeve 120 is ⁇ 2.495 and the outer diameter is ⁇ 3.0 to 3.2 mm. I did it.
- the sleeve holder 130 that is the holding member 150 that holds the optical connection sleeve 120 has a first cylindrical shape provided with a first through hole 131 that holds one end of the optical connection sleeve 120.
- a holding portion 132 is provided, and at one end in the longitudinal direction of the first holding portion 132, a first strobe protrusion 133 that locks one end portion of the optical connection sleeve 120 protrudes radially inward. Is provided.
- first flange portion 134 is provided on the outer periphery of the other end portion of the first holding portion 132 opposite to the first strobe protrusion 133.
- first holding portion 132 and a second holding portion 145 of a housing 140 described later are provided so as to be sandwiched therebetween, and a locking claw 135a is provided at the tip.
- Each of the engaging claws 135 having a pair is provided.
- These engagement claws 135 are for engaging the engagement portion 36 of the plug frame 30 of the optical connector plug 10 to couple the optical connector plug 10 and the optical connector adapter 110.
- a pair of locking projections 137 are provided on the short side end of the first flange portion 134, respectively.
- the housing 140 of the holding member 150 has a through portion 141 that is a through hole for holding the sleeve holder 130 therein, and the first side of the sleeve holder 130 is provided on both short sides of the through portion 141.
- a groove portion 143 that fits with an end portion of the flange portion 134 is provided.
- the central force in the axial direction in the penetrating portion 141 is also opposite to the insertion direction of the first flange portion 134, and the second flange portion 144 that makes the first flange portion 134 abut the surface with each other.
- the second through-hole 142 extending in the axial direction from the second flange portion 144 and communicating with the first through-hole 131 to hold the other end of the optical connection sleeve 120 is provided.
- a second holding portion 145 having a cylindrical shape, and a second stopper projection 146 for engaging the end portion of the optical connection sleeve 120 at the end of the second holding portion 145 is radially inward. It is projected on.
- a fixing flange 148 is provided at the axial center of the short side surface of the housing 140, and the fixing flange 148 is provided with a fixing groove 148a for fixing the housing 140.
- a concave portion 149 for the plate that is continuous with each other is formed on the opposite side surfaces of the housing 140 in the axial direction on one side and the surface between them, and the concave portion 149 for the plate is made of metal.
- the U-shaped plate 15 3 having the engaging claws 152 is fitted.
- the sleeve holder 130 is inserted by sandwiching the optical connection sleeve 120 between the first holding part 132 and the second holding part 145.
- the sleeve holder 130 is inserted into the housing 140 by inserting the locking pin 151 into the housing 140 so that the arm 151 a engages the locking protrusion 137 of the sleeve holder 130.
- the optical connection sleeve 120 can be held inside by engaging with the woozing 140.
- FIGS. 6 (b) to 9 (b) and 6 (c) to 9 (c) are shown in FIG. It is CC 'sectional drawing and DD' sectional drawing of a)-FIG. 9 (a).
- the plug frame 30 of the optical connector plug 10 is gripped in a state where the plug frame 30 is located at the accommodation position, that is, in a state where the front end surface of the ferrule 40 is shielded by the shielding plate 70. And inserted into the through-hole 141 of the optical connector adapter 110. At this time, as shown in FIG. 6 (b), the plug connector / housing contact portion 27 of the optical connector plug 10 contacts the tip of the engagement claw 135 of the optical connector adapter 110.
- the pressing portion 35 of the plug frame 30 moves to the optical connector plug 110 side while expanding the engaging claws 135.
- the engaging claw 135 is pushed and widened by the pressing portion 35 and the contact between the engaging claw 135 and the abutting portion 27 is released, so that the tip surface of the plug frame 30 is a beam of the plug nosing 20.
- the plug housing 20 moves to the optical connector adapter 110 side together with the plug frame 30 in contact with the portion 25.
- the engaging claw 135 passes over the abutting protrusion 26 of the plug housing 30 and the engaging claw 135 and the engaging portion 36 of the plug frame 30 are engaged as shown in FIG. To do. That is, the optical connector plug 10 and the optical connector adapter 110 can be coupled.
- the other side force of the optical connector adapter 110 is also connected to the optical connector plug 10 so that the optical connector plugs 10 can be connected to each other via the optical connector adapter 110. Can be connected.
- the optical connector plug 10 can move the shielding plate 70 to the non-shielding position simply by grasping the plug frame 30 and trying to connect it to the optical connector adapter 110.
- the front end surface can be easily and reliably shielded to prevent light from being irradiated from the front end of the optical connector plug 10.
- the shielding plate 70 can be moved to the shielding position and the non-shielding position simply by holding the plug frame 30 and pushing it into the optical connector adapter 110, the shielding plate 70 is moved to the shielding position and the non-shielding position. Therefore, it is possible to prevent light from leaking to the outside when connecting to the optical connector adapter 110, thereby improving safety.
- the optical connector plug 10 of the present embodiment moves the shielding plate 70 first to the non-shielding position based on the shielding position force only by grasping the plug frame 30 and trying to connect it to the optical connector adapter 110.
- the optical connector plug 10 and the optical connector adapter 110 are connected first with the shielding plate 70 in the shielding position. There is nothing to do. That is, when connecting the optical connector plug 10 and the optical connector adapter 110, if the engaging claw of the optical connector adapter 110 gets over the abutment protrusion 26 before the shielding plate 70 moves to the non-shielding position.
- the shielding plate 70 comes into contact with the sleeve holder 130, resulting in deformation or damage.
- the engaging claw 135 of the optical connector plug 10 gets over the contact projection 26 later. Since the optical connector plug 10 and the optical connector adapter 110 are connected, it is possible to reliably prevent the shielding plate 70 from being deformed or damaged.
- the optical connector plug 10 when the optical connector plug 10 is removed even when such a coupling state force is removed, if the plug and the wing 20 of the optical connector plug 10 are grasped and pulled out, the plug and the wing 20 move backward with respect to the plug frame 20. Then, the engagement claw 135 is expanded by the engagement release portion 28 to release the engagement between the engagement claw 135a of the engagement claw 135 and the engagement portion 36. Thereby, the optical connector plug 10 can be removed from the optical connector adapter 110. In addition, before completely plugging out the plug and winging 20 from the optical connector adapter 110, grasp the plug frame 30 and pull it out.
- the optical connector plug 10 has an outer shape that can be connected to the conventional SC-type optical connector adapter 110, so that it is possible to reduce the introduction cost that does not require a special optical connector adapter.
- the optical connector plug 10 of the present embodiment includes a ferrule 40, a stop ring 50, and a biasing spring 60 used in a conventional SC type optical connector plug. Since the same can be adopted, manufacturing cost and equipment cost can be reduced.
- FIG. 9 is a perspective view and a plan view of the optical connector plug according to the second embodiment
- FIG. 10 is a cross-sectional view of a main part CC ′ and a cross-sectional view of a main part DD ′ in FIG. 9 (b).
- symbol is attached
- the optical connector plug 10A holds the ferrule 40, the stop ring 50, and the urging spring (not shown) similar to those of the first embodiment described above in the plug housing 20A.
- Plug frame 30 is held movably!
- the plug nosing 20A is provided with a shield plate 70A and an action plate 80A in which the base end portion is tilted by the shield plate shaft 71 and the action plate shaft 81 on one side of the plug frame holding hole 21, respectively. It has been. Further, the plug frame 20A is provided with biasing holding means 90A for positioning and biasing the shielding plate 70A and the operation plate 80A.
- the shielding plate 70A is made of a plate-like member, and is tiltably held via the shielding plate shaft 71 on one side in the plug frame holding hole 21, in this embodiment, on the opposite side to the key 20a.
- the shielding plate 70A has a distal end portion on one side where the shielding plate shaft 71 is provided, and a proximal end portion is held, such as a positional force abutting on the distal end side of the plug housing 20A with respect to the shielding plate shaft 71. It is provided so as to rotate about the shielding plate shaft 71 while facing the surface on the opposite side to the one side.
- the front end portion is formed with a length that abuts against the inner surface of the plug frame holding hole 21.
- the operation plate 80A is made of a plate-like member and is tiltably held on one side in the same plug frame holding hole 21 as the base end portion of the shielding plate 70A via the operation plate shaft 81. . Further, the operating plate 80A is provided so that the tip portion thereof abuts against the shielding plate 70A and is tilted together with the shielding plate 70A by the urging holding means 90A. [0103] Such a shielding plate 70A and operation plate 80A do not interfere with the ferrule 40 and the plug frame 30 at the shielding position! When the optical connector plug 10 is connected to the optical connector adapter 110 at the position, The shield plate 70A does not break due to contact with members such as the split sleeve 120 in the connector adapter 110. /
- the shielding plate 70A and the operation plate 80A are formed of stainless steel in the present embodiment.
- the urging holding means 90A urges the operation plate 80A in the direction from the shielding position force to the non-shielding position, and also includes the operation plate urging means 92 having a spring force provided at the base end portion of the operation plate 80.
- the shielding plate urging means 93 provided at the base end portion of the shielding plate 70A for urging the shielding plate 70A in the direction from the non-shielding position to the shielding position.
- the operating plate urging means 92 urges the operating plate 80A in a direction in which the shielding state force is also in the non-shielding state, the tip of the operating plate 80A is always in contact with the shielding plate 70A. The Therefore, when the plug frame 30 is moved to the storage position, it is possible to prevent the operation plate 80A from coming into contact with the tip surface of the ferrule 40 and scratching the tip surface of the ferrule 40 and the tip surface of the optical fiber. it can.
- the shielding plate urging means 93 urges the shielding plate 70A against the urging force of the operation plate urging means 92 in the direction from the non-shielding position to the shielding position.
- the shielding plate 70A is urged to the shielding position by the shielding plate urging means 93.
- the shielding plate 70A shields the tip surface of the ferrule 40 so that the tip force of the optical connector plug 10A is not irradiated with light.
- the plug housing is configured so that the movement of the plug frame 30 is not restricted by the shielding plate 70A and the operation plate 80A coming into contact with the plug frame 30.
- the plug frame holding hole 21 of 20A has a receiving portion 1 for receiving the shielding plate 70A and the operation plate 80A when the shielding plate 70A and the operation plate 80A are in the non-shielding position. 02A is provided.
- the shield plate 70A moves the tip surface of the ferrule 40 only by moving the plug frame 20 within the plug housing 20A. It is possible to easily and surely incline between the shielding position for shielding and the non-shielding position that becomes the optical connection position when the optical connector plug 10A is optically connected. As a result, the tip surface of the ferrule 40 can be shielded so that the tip force light of the optical connector plug 10A can be easily and reliably blocked, and the safety of the optical connector plug 10A can be improved. In addition, the optical connection of the optical connector plug 10A can be easily and reliably performed.
- the outer shape of the optical connector plug 10A should be the same as that of the conventional SC type optical connector plug. Can do. Therefore, the optical connector plug 10A can be connected to the conventional SC type optical connector adapter, and the manufacturing cost and the introduction cost can be reduced.
- a contact portion 27 that contacts the engagement claw 135 of the optical connector adapter 110 is provided on the distal end side of the plug housing 20A, and contacts the plug frame 30. Since the pressing portion 35 for releasing the contact state between the portion 27 and the engaging claw 135 is provided, the shielding plate 70A and the operation plate 80A are shielded when the optical connector plug 10A is connected to the optical connector adapter 110. It can be connected after moving to the non-shielding position from the position force. This can prevent the shielding plate 70A and the operation plate 80A from being destroyed.
- FIG. 11 is a perspective view and a plan view of the optical connector plug according to Embodiment 3
- FIG. 12 is a cross-sectional view taken along the line EE ′ and a cross-sectional view taken along the line FF ′ of FIG. 11 (b).
- symbol is attached
- the optical connector plug 10B holds the ferrule 40, the stop ring 50, and a biasing spring (not shown) similar to those of the first embodiment described above in the plug housing 20B.
- Plug frame 30 is held movably!
- the base end portion on one side of the plug frame holding hole 21 is a shielding plate.
- a shielding plate 70A and an operation plate 80B are provided so as to be tiltable by the shaft 71 and the operation plate shaft 81, respectively.
- the shielding plate 70A is formed in such a length that the tip end is in contact with the other side opposite to the one side where the base end of the plug frame holding hole 21 is held, as in the second embodiment. Yes.
- the operation plate 80B is formed wider than the shielding plate 70A, and a through hole 85 through which the shielding plate 70A is passed is provided at the tip.
- the shielding plate 70A when the shielding plate 70A is in the shielding position, the inclination of the ferrule 40 toward the distal end surface side is restricted by the shielding plate 70A inserted through the through hole 85. For this reason, as the urging holding means 90B of the present embodiment, only the shielding plate urging means 93 is provided at the base end portion of the shielding plate 70A so that the shielding plate 70A urges the non-shielding position force toward the shielding position. .
- the optical connector plug 10B having such a configuration can also obtain the same effects as those of Embodiments 1 and 2 described above.
- the shielding plate urging means 93 is provided on the shielding plate 70A as the urging holding means 90B for positioning and urging the shielding plate 70A and the operation plate 80B, the manufacturing process is simplified. Can be ashamed.
- only the shielding plate urging means 93 for urging the shielding plate 70A from the non-shielding position to the shielding position is provided as the urging holding means 90B.
- the operation plate urging means for urging the operation plate 80B by urging the non-shielding position force toward the shield position as well as the second embodiment described above.
- Both the means 93 and the operation plate urging means 92 may be provided.
- the shielding plate 70A is positioned such that the tip portion is in contact with the inner surface of the plug frame holding hole 21 to position the shielding position.
- the shielding plate 70A is formed by the operation plate 80B. Since the inclination of the ferrule 40 toward the front end surface side is regulated, the length of the front end of the shielding plate may not be in contact with the plug frame holding hole 21, but when the shielding plate is in the non-shielding position. Therefore, it is necessary to make the length not to be extracted from the through hole 85 of the operation plate 80B.
- FIG. 13 is a perspective view and a plan view of an optical connector plug according to Embodiment 4 of the present invention
- FIG. 15 is a cross-sectional view of GG ′ main part and H —: ⁇ main part cross-section of FIG. 14 (b).
- FIG. 14 The above The same members as those in the above-described embodiment are denoted by the same reference numerals, and redundant description is omitted.
- the optical connector plug 10C holds the ferrule 40, the stop ring 50, and a biasing spring (not shown) similar to those of the first embodiment described above in the plug housing 20C.
- the plug frame 30 is held movably.
- the plug housing 20C is provided on one side of the plug frame holding hole 21 with a shielding plate 70B and an operation plate 80C whose base end portions are held by a shielding plate shaft 71 and an operation plate shaft 81 so as to be inclined.
- a pair of notches 72 are provided in opposing regions on both sides in the width direction of the shielding plate 70B, and a narrow portion 73 is provided by the notches 72.
- the operating plate 80C is formed wider than the shielding plate 70B, and is cut out at a substantially central portion on the distal end side so as to open in the distal end edge in the longitudinal direction. 86 is provided.
- the insertion portion 86 is formed with a width smaller than the width of the shielding plate 70B and slightly larger than the narrow portion 73, and the narrow portion 73 of the shielding plate 70B is formed on the insertion portion 86 of the operation plate 80C. In the inserted state, the shielding plate 70B and the operation plate 80C are engaged.
- the shielding plate 70B and the operation plate 80C are engaged on the tip side in this way, when the shielding plate 70B is in the shielding position, the ferrule 40 is inclined toward the tip surface side. Is regulated by the operating plate 80 C. This state is determined by three predetermined positions including the shielding plate shaft 71 of the shielding plate 70B, the operation plate shaft 81 of the operation plate 80C, and the point where the shielding plate 70B and the operation plate 80C intersect.
- the shield plate shaft 71 which is the center of inclination of the shield plate 70B, can be used as the distal end side of the plugno and the winging 20C.
- the action plate 80C is restricted from inclining the ferrule 40 toward the tip surface side by the shielding plate 70B inserted into the insertion portion 86. . Therefore, as the urging holding means 90B of the present embodiment, only the shielding plate urging means 93 that urges the shielding plate 70B toward the shielding position by urging the non-shielding position force to the base end portion of the shielding plate 70B is provided. Yes. Even with the optical connector plug IOC having such a configuration, the same effects as those of the first to third embodiments can be obtained.
- only the shielding plate urging means 93 that urges the shielding plate 70A from the non-shielding position to the shielding position is provided as the urging holding means 90B.
- the operation plate urging means for urging the operation plate 80B by urging the non-shielding position force toward the shield position as well as the second embodiment described above.
- Both the means 93 and the operation plate urging means 92 may be provided.
- optical connector plug and optical connector of this invention are not limited to what was mentioned above.
- force exemplifying LOC for example, not limited to this.
- the present invention can also be applied to an oblique PC connector in which the tip surface of the ferrule is formed in a convex shape inclined with respect to a surface orthogonal to the optical fiber axis.
- any shielding plate of the above-described Embodiments 1 to 4 Even if it is 70-70B, the front end face of the ferrule of the diagonal PC connector can be shielded.
- the shielding plates 70 and 70B of Embodiments 1 and 3 described above are formed with a wide area for substantially shielding the irradiation light, and therefore can more reliably shield the irradiation light.
- the shielding plates 70 to 70B and the operation plate 80 are provided in the plug frame holding hole 21 on the side opposite to the surface on which the key 20a of the plug housing 20 to 20C is provided. ⁇ 80C is provided, but the position where the shielding plate and the operation plate are provided is not particularly limited as long as it is within the plug frame holding hole 21.
- the shielding plates 70 to 70B and the operation plates 80 to 80C are rotatably held in the plug frame holding hole 21 by the shielding plate shaft 71 and the operation plate 81.
- the present invention is not particularly limited to this.
- the shielding plate and the operation plate are used as plate panels.
- the base end portion may be fixed to the shielding plate frame 101 or the plug housings 20A to 20C so as to be freely tiltable within the plug frame holding hole 21. In such a case, since the shielding plate and the operation plate itself act as the bias holding means, it is not necessary to provide a separate bias holding means.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Description
Claims
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JP2004-344532 | 2004-11-29 | ||
JP2004344532A JP4350031B2 (ja) | 2003-12-05 | 2004-11-29 | 光コネクタプラグ及び光コネクタ |
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WO2006057088A1 true WO2006057088A1 (ja) | 2006-06-01 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10300985A (ja) * | 1997-04-23 | 1998-11-13 | Sumitomo Electric Ind Ltd | 多心光コネクタ |
US6210045B1 (en) * | 1998-12-29 | 2001-04-03 | Siecor Operations, Llc | Alignment sleeve for aligning ferrules and associated assembly method |
JP2002023008A (ja) * | 2000-02-04 | 2002-01-23 | Molex Inc | 光コネクタ |
JP2003262762A (ja) * | 2002-03-12 | 2003-09-19 | Furukawa Electric Co Ltd:The | 光コネクタアダプタ用シャッタ部材及び光コネクタアダプタ |
JP2004145005A (ja) * | 2002-10-24 | 2004-05-20 | Japan Aviation Electronics Industry Ltd | 光コネクタ装置 |
JP2004163691A (ja) * | 2002-11-13 | 2004-06-10 | Honda Tsushin Kogyo Co Ltd | シャッタ付き光コネクタ |
JP2005092082A (ja) * | 2003-09-19 | 2005-04-07 | Matsushita Electric Works Ltd | 光ファイバプラグおよび光ファイバコネクタ |
-
2005
- 2005-06-02 WO PCT/JP2005/010108 patent/WO2006057088A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10300985A (ja) * | 1997-04-23 | 1998-11-13 | Sumitomo Electric Ind Ltd | 多心光コネクタ |
US6210045B1 (en) * | 1998-12-29 | 2001-04-03 | Siecor Operations, Llc | Alignment sleeve for aligning ferrules and associated assembly method |
JP2002023008A (ja) * | 2000-02-04 | 2002-01-23 | Molex Inc | 光コネクタ |
JP2003262762A (ja) * | 2002-03-12 | 2003-09-19 | Furukawa Electric Co Ltd:The | 光コネクタアダプタ用シャッタ部材及び光コネクタアダプタ |
JP2004145005A (ja) * | 2002-10-24 | 2004-05-20 | Japan Aviation Electronics Industry Ltd | 光コネクタ装置 |
JP2004163691A (ja) * | 2002-11-13 | 2004-06-10 | Honda Tsushin Kogyo Co Ltd | シャッタ付き光コネクタ |
JP2005092082A (ja) * | 2003-09-19 | 2005-04-07 | Matsushita Electric Works Ltd | 光ファイバプラグおよび光ファイバコネクタ |
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