WO2006019161A1 - 光コネクタ、及び光コネクタの組立方法 - Google Patents
光コネクタ、及び光コネクタの組立方法 Download PDFInfo
- Publication number
- WO2006019161A1 WO2006019161A1 PCT/JP2005/015147 JP2005015147W WO2006019161A1 WO 2006019161 A1 WO2006019161 A1 WO 2006019161A1 JP 2005015147 W JP2005015147 W JP 2005015147W WO 2006019161 A1 WO2006019161 A1 WO 2006019161A1
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- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- jacket
- optical connector
- optical
- holder
- Prior art date
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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
- G02B6/3846—Details of mounting fibres in ferrules; Assembly methods; Manufacture with fibre stubs
-
- 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
-
- 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
-
- 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
- G02B6/3826—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
- G02B6/3829—Bent or angled connectors
-
- 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
- G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
- G02B6/38875—Protection from bending or twisting
-
- 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
Definitions
- the present invention relates to an optical connector that is suitably connected to an optical cable having a tight structure, and an assembling method of the optical connector.
- optical cables such as drop cables and indoor cables are made by coating an optical fiber core wire and a tension member with a cable jacket (sheath), and the optical fiber core wire and the tension member are in close contact with the cable jacket. It is a so-called tight structure.
- a conventional optical connector connected to such an optical cable having a tight structure includes a ferrule and a mechanical splice.
- this optical connector when a wedge is inserted into a mechanical splice that holds a ferrule containing a short optical fiber at its tip, the mechanical splice is opened. Then, the optical fiber core wire is exposed by removing the cable jacket from the optical cable, and further, after the mechanical splice in the optical fiber open state exposed by removing the coating of the optical fiber core wire. Power is introduced. With the front end face of this optical fiber abutted against the rear end face of the short optical fiber, the mechanical splice is closed when the wedge is removed, and the short optical fiber and the optical fiber are closed by the mechanical splice. The butting part is fixed.
- Such an optical connector is disclosed in, for example, Japanese Patent Application Laid-Open No. 11-160563.
- the present invention provides an optical connector in which an optical fiber core wire is easily protected, and an optical connector assembling method that improves workability when assembling the optical connector in the field. With the goal.
- An optical connector holds a ferrule incorporating a short optical fiber at the tip, and an optical fiber core coated with the optical fiber, and a cable jacket covering the optical fiber core
- An optical connector having a mechanical splice that mechanically splices the optical fiber of a tight structure that is closely attached to the optical fiber and is introduced from the rear to fix the butted portion of the optical fiber and the short optical fiber mechanically.
- An outer housing with a pair of flexible arms provided with pawls and a rear end side of the mechanical splice so that the cable jacket is inserted. It is characterized in that it comprises an outer fixed portion for fixing the Buru envelope, the.
- an optical connector is an optical fiber of a tight structure optical cable in which an optical fiber coated with an optical fiber and a cable jacket covering the optical fiber are in close contact with each other.
- An optical connector to be connected comprising: (a) a fleur incorporating a short optical fiber extending in a predetermined axial direction; and (b) a holding part and a fixing part in order from one side to the other side in the predetermined axial direction.
- the optical fiber of the optical cable that has a ferrule that is held by the holding part and that extends to the other side and the optical force of the optical cable that is introduced and abutted against the short optical fiber is fixed mechanically by the fixing part.
- the cable jacket can be configured with a simple configuration. Force Excessive force such as bending of external force acts on the exposed optical fiber during work, and is eliminated. That is, since the cable jacket is fixed by the jacket fixing part connected to the mechanical splice, no force from the outer part is applied to the optical fiber core wire exposed from the cable jacket.
- the outer housing force that accommodates the mechanical splice is connected to the accommodating portion that accommodates the mechanical splice, is located on both sides of the accommodating portion, protrudes toward the connection partner side, and is connected to the distal end side thereof Since it has a pair of flexible arms provided with locking claws for mounting on the other party, the optical connector can be obtained by locking the locking claws to a connection partner such as an adapter. Is easily attached to the connection partner.
- connection partner such as an adapter.
- optical fiber cores may be stored in a storage tray or the like. However, in the optical connector of the present invention, storage in the storage tray or the like is not required, thereby reducing manufacturing costs and improving workability. ing.
- the mechanical splice described above is accommodated in the outer housing so as to be movable in the axial direction and is urged toward the front end side by a panel. That is, in the optical connector of the present invention, it is provided so as to be movable in the predetermined axial direction inside the mechanical splice force accommodating portion, and the outer cover fixing portion force moves in the predetermined axial direction integrally with the mechanical splice. It is preferable that the mechanical splice is connected to the mechanical splice.
- the optical connector of the present invention preferably further includes a panel for urging the mechanical splice to the one side.
- the cover structure for example, when a ferrule back occurs during optical connection with a connection partner, the outer sheath is fixed by being coupled to a mechanical splice provided with the ferrule. Retracts along with the ferrule back of the cable jacket that is fixed to the jacket fixing part. Therefore, the optical fiber core wire exposed by the cable sheath is not bent, and the disconnection during the ferrule back is surely prevented. In addition, loss due to bending of the optical fiber is eliminated.
- the optical connector of the present invention is a connecting member that connects the mechanical splice and the jacket fixing portion, and is a first contact that faces the other side along a plane that intersects a predetermined axis.
- a connecting member having a surface, and a spring push fixed to the outer housing and having a second abutting surface facing the first abutting surface.
- the panel may be provided between the first contact surface and the second contact surface.
- the arm portion preferably includes a rib. According to this rib, the rigidity of the flexible arm portion is appropriately increased. Therefore, the locking claw is securely locked to the connection partner, and optical connection failure due to the occurrence of tally is prevented.
- the accommodating portion includes a protrusion on an outer surface facing the arm portion of the accommodating portion.
- the arm portion comes into contact with the protrusion, the arm portion is prevented from being excessively squeezed inward, and damage is prevented.
- the locking claw is provided on the outside of the arm portion, and the arm portion is previously opened slightly outward. According to this configuration, since the flexible arm portion is folded inward and then opened and the locking claw is locked to the connection partner, the locking claw is securely locked to the connection partner, A good click feeling is generated during the operation.
- the arm portion is provided with a projecting portion projecting outward on the base side, that is, the base end.
- the locking claw is easily locked to the connection partner in a state in which the stagnation of the arm portion due to external force is eliminated.
- the ferrule, mechanical splice, and outer cover fixing part are connected and a ferrule back is generated, it is difficult to attach to the connection partner with the outer cover fixing part. It is particularly effective to attach to the connection partner by pushing the protruding part that protrudes outside the base side of the arm.
- the outer cover fixing portion overlaps the axial direction in the rear end force of the outer housing to the vicinity of the base of the arm portion. That is, it is preferable that the jacket fixing portion overlaps with the vicinity of the end force arm portion on the other side of the outer housing in the predetermined axial direction. According to the powerful configuration, the rigidity against an external force acting when the optical cable is bent and pulled is increased.
- the optical connector of the present invention includes a jacket holder for holding the cable jacket, and the jacket holder is fixed to the jacket fixing portion together with the cable jacket by a clip. That is, it is preferable that the optical connector of the present invention further includes a jacket holder for holding the cable jacket and a clip for fixing the jacket holder to the jacket fixing portion. According to the configuration, both the jacket holder that holds the cable jacket and the cable jacket are attached to the jacket fixing part. Since it is fixed, it is considered to be strong. In addition, by adopting a configuration in which the clip enters between the entire length of the jacket holder, the total length of the optical connector including the jacket fixing portion is shortened.
- the outer cover fixing portion is completely covered with an outer housing or a member connected to the outer housing.
- the optical connector can be easily attached to the connection partner with the outer housing or the member connected to the outer housing.
- the ferrule, mecha-cal splice, and outer cover fixing part are connected and a ferrule back is generated, it is difficult to attach the connecting part with the outer cover fixing part. It is particularly effective to attach to a connection partner having an outer housing or a member connected to the outer housing.
- the outer cover fixing part is divided and includes a main cover fixing part main body connected to the mechanical splice side and a guide part slidable in the axial direction with respect to the main body of the outer cover fixing part.
- a first movable part and a second movable part wherein the first movable part is slid to the tip side in a state where the jacket holder holding the cable jacket is placed and is accommodated in the second movable part.
- the second movable part is slid to the distal end side so that the jacket holder is positioned at a predetermined position in the jacket fixing part main body where the optical fiber from which the cable jacket force is derived also hits the short optical fiber.
- the outer cover fixing part main body is characterized by including a lid part that fixes the outer cover holder to the outer cover fixing part main body by being closed in a state where the outer cover holder is located at a predetermined position.
- the optical connector of the present invention further includes a jacket holder for holding the cable jacket
- the jacket fixing portion includes a jacket fixing portion main body connected to the mechanical splice, and the jacket fixing portion main body.
- a first movable portion and a second movable portion each having a guide portion slidable in a predetermined axial direction with respect to the outer sheath fixing portion main body, and the first movable portion is equipped with an outer sheath holder. In this state, it is slid to one side and accommodated in the second movable part, and the second movable part is exposed to a predetermined position in the jacket fixing part main body where the optical fiber guided from the cable jacket hits the short optical fiber.
- the cover is slid to one side so that the holder is positioned, and the cover fixing part main body is closed with the cover holder being positioned at a predetermined position, thereby closing the cover holder to the cover fixing part main body.
- the jacket holder holding the cable jacket is placed on the first movable part, and the first movable part is slid to the tip side and accommodated in the second movable part.
- This second When the movable part is slid to the tip side and the jacket holder is positioned at a predetermined position in the body of the jacket fixing part, the optical fiber derived from the cable jacket strikes the short optical fiber and the lid is closed.
- the jacket holder is fixed to the jacket fixing part main body. For this reason, the assemblability of the optical connector is improved. Further, the optical connector having such a configuration is particularly effective when used in a rosette.
- a portion related to connection to a connection partner such as an outer housing is configured by any of polyether imide, PPS, PBT, polycarbonate, and PES (polyether sulfone). It is preferable.
- the parts made of the material to be made are ideal for long-term use because of their excellent heat resistance and creep resistance.
- the optical connector of the present invention includes another ferrule incorporating another short optical fiber extending in the predetermined axial direction, and a fixing portion and a holding portion in order from one side to the other side in the predetermined axial direction.
- Another ferrule that is held by the holding part Another short optical fiber that extends to one side and one side force is introduced into the optical fiber of another optical cable that is brought into contact with the other short optical fiber by the fixing part.
- Another mechanical splice that is fixed to the mechanical, a cylindrical portion that extends in a predetermined axial direction and that accommodates another mechanical splice, and an end portion on the other side of the storage portion.
- a separate optical cable A holder that holds the cable jacket of the cable and is disposed at a predetermined position of the base portion and is fixed to the base portion by closing the lid portion.
- the base portion has another mechanism.
- -A mechanical sput collar that has an abutment surface that abuts one end of the callus splice is provided to guide the optical fiber from which the cable sheath force of another optical cable is derived to the fixed part. It is preferable that the groove is provided.
- the optical connector of the present invention is a male optical connector connected to an optical fiber of an optical cable.
- Optical connector plug and a female optical connector (optical adapter) connected to the male optical connector.
- This male optical connector includes the above-described ferrule, mechanical splice, outer housing, and outer cover fixing portion.
- the female optical connector also includes another ferrule, another mechanical splice, a housing, and a holder described above. It is connected to the optical fiber of another optical cable.
- the optical fiber core wire is exposed by removing the tension member of the optical cable, the cable jacket is sandwiched and held in the holder, and the optical connector is The optical fiber is exposed by removing a predetermined length of the coating on the fiber core, the tip is cut, and the light is passed through a slit that is provided on the upper side of the jacket fixing part and communicates with the inside and outside that is opened from the rear side.
- the fiber is positioned inside the jacket fixing part, and the optical fiber is mounted on the optical fiber connecting part to the exposed mechanical splice that is provided so as to be positioned above the jacket fixing part.
- the abutted portion mecha - fixed to cull, after taking the slack of the optical fiber is characterized in that to fix the holder to the outer fixed portion.
- optical connector assembling method it is possible to prevent an excessive force such as bending of an external force from acting on the optical fiber core wire during the operation with a simple configuration and to easily connect the optical fiber to the connection partner.
- the optical connector to be mounted can be assembled easily and stably on site.
- Still another optical connector includes an optical fiber core having a ferrule containing a short optical fiber at the tip, a coated optical fiber, and the optical fiber core.
- a receiving portion for storing the mechanical splice, an adapter provided on the front end side of the receiving portion for connecting the ferrule to the connection partner, a base provided on the rear side of the receiving portion and extending in a predetermined direction And a housing having a lid portion for opening and closing the base portion, and a cable jacket that holds the cable jacket and is arranged at a predetermined position on the housing base portion so that the lid portion is closed. And a holder fixed to the base portion.
- another optical connector is an optical cable having a tight structure in which an optical fiber coated with an optical fiber and a cable jacket covering the optical fiber are in close contact with each other.
- An optical connector connected to a single optical fiber wherein (a) a short extending in a predetermined axial direction A ferrule with a built-in optical fiber; and (b) a short optical fiber having a holding part and a fixing part in order from one side to the other side in a predetermined axial direction and extending to the other side of the ferrule lens held by the holding part And a mechanical splice for fixing the optical fiber of the optical cable abutted against the short optical fiber to the mechanical mechanism by a fixing portion; and (c) a cylindrical shape extending in a predetermined axial direction and mechanical.
- a housing having a base part continuous to the base part, and a lid part for opening and closing the base part, and (d) a base that is arranged at a predetermined position of the base part while holding the cable jacket and is closed. And a Honoreda fixed to.
- the housing constituting the optical connector includes the adapter, the number of connections and the number of components are reduced.
- the holder force that holds the cable jacket is placed on the base of the housing and the lid is closed, so that it is fixed to the nose and udging, so the optical fiber core wire that exposes the cable jacket force with a simple configuration
- an excessive force such as bending is not applied from the outside during the operation.
- the optical fiber core wire is stored in a storage tray or the like.
- the optical connector of the present invention does not require storage in the storage tray or the like, thereby reducing the manufacturing cost and improving the workability. It has been.
- the base portion is provided with a mechanical sp stopper for fixing the mechanical splice from the rear side, and a groove for guiding the optical fiber that also derives the cable sheath force is provided in the mechanical sput collar.
- a mechanical sp stopper for fixing the mechanical splice from the rear side
- a groove for guiding the optical fiber that also derives the cable sheath force is provided in the mechanical sput collar.
- the base is provided with a mechanical sputt flange having a contact surface that contacts the other end of the mechanical splice.
- the mechanical stop top is connected to the optical fiber from which the cable sheath force is derived. It is preferable to have a groove to guide to U ,.
- the groove of the mechanical sputt collar is used as a guide for the optical fiber core wire, and the arrangement of the optical fiber core wire is facilitated, and the workability is improved.
- the optical fiber core wire is prevented from coming into contact with the surroundings, thereby preventing the optical fiber core wire from being disconnected. Further, when this groove is positioned on the upper side, visibility is improved and workability is further improved.
- the holder is provided with a shape for temporarily fixing it to a predetermined position of the base portion, the holder is prevented from being displaced from the predetermined position or dropping before the lid portion is closed, so that workability is improved. Be raised.
- the adapter accommodates and includes an attachment provided with a locking claw for mounting the SC connector to be inserted, and the locking claw is provided on the front end surface of the adapter. It is preferable that the force does not protrude. That is, when this optical connector is an optical connector connected to the SC connector, the optical connector further includes an attachment provided with a locking claw for attaching the SC connector, and the adapter accommodates the attachment. be able to.
- the attachment enables connection to the SC connector, and versatility is improved.
- the locking claw does not protrude from the tip end surface of the adapter, the SC connector can be easily mounted using the adapter as a guide for the SC connector rather than as a guide for the SC connector.
- both the base portion and the lid portion extend in a direction having an angle (excluding 0 °) with respect to the axis of the ferrule. That is, it is preferable that the base portion and the lid portion are bent in a predetermined direction intersecting at a predetermined angle with respect to the predetermined axial direction.
- the optical fiber core is bent so as to be directed in a predetermined direction such as an oblique direction or a right angle direction
- the cable jacket is extended in the predetermined direction without bending the cable jacket (optical cable). Therefore, the length of the optical connector and the optical cable is shortened by bending the optical fiber core wire instead of bending the cable jacket.
- the width and thickness direction of the cable jacket (the direction in which the tension members are juxtaposed) differ by 90 °. It may be necessary to bend the cable jacket in the width-thickness direction of the cable jacket. For this reason, in place of the holder, another holder for holding the cable jacket is provided. The other holder holds the cable jacket in the same direction as the holder, and 90 ° around the axis with respect to the holder. If the shape is fixed to the base while the direction is changed, the width and thickness direction of the cable jacket can be easily changed by 90 ° and bent easily by the other holder. against cabinets and outlets It can be easily applied.
- the holder in which the thickness in one direction of the cable jacket is thinner than the thickness in the other direction perpendicular to the direction holds the cable jacket from both sides in the one direction
- the other direction of the cable jacket and the predetermined axial direction may be arranged in the base portion so as to be substantially the same direction. In this configuration, it is possible to easily bend the cable jacket from which the base portion force is derived in a direction intersecting the predetermined axial direction. Therefore, this optical connector can be easily applied to the cabinet.
- the holder in which the thickness in one direction of the cable jacket is thinner than the thickness in the other direction perpendicular to the direction holds the cable jacket from both sides in the one direction
- the cable jacket is disposed on the base portion so that the other direction of the cable jacket is substantially orthogonal to the predetermined axial direction and the predetermined direction. In this configuration, it is easy to bend the cable jacket led out from the base portion in a direction crossing the predetermined axis direction and further to the predetermined axis direction. Therefore, this optical connector can be easily applied to the outlet.
- the base portion extends linearly rearward and is divided, and is divided and connected to the housing portion.
- a base portion, and the movable base portion is located in a base portion main body in which the optical fiber derived from the cable sheath strikes the short optical fiber in a state where the holder holding the cable sheath is placed.
- the holder is fixed to the base body by being slid toward the tip so that the holder is positioned at a predetermined position and the lid is closed.
- the base portion includes a base portion main body connected to the other end of the accommodating portion, a movable base portion including a guide portion that can slide in a predetermined axial direction with respect to the base portion main body,
- the movable base portion has one holder so that the holder is positioned at a predetermined position in the base portion main body where the optical fiber led out from the cable jacket hits the short optical fiber with the holder mounted.
- the holder may be fixed to the base body by sliding and closing the lid.
- the holder holding the cable jacket is placed on the movable base.
- the optical fiber derived from the cable sheath strikes the short optical fiber and the lid is closed.
- the holder is fixed to the base body.
- the optical connector having such a configuration is particularly effective when used in a rosette.
- the portion related to the connection to the connection partner such as the housing is formed of any one of polyetherimide, PPS, PBT, polycarbonate, and PES.
- a material is excellent in terms of heat resistance and creep resistance, and is optimal for long-term use of the above-mentioned part.
- the optical connector assembling method includes removing the tension member of the optical cable to expose the optical fiber core, holding the cable jacket between the holders, and covering the optical fiber core. Remove the specified length to expose the optical fiber, cut the tip, insert the rear side force of the open mechanical splice, and confirm that the optical fiber has hit the mechanical splice.
- the abutting portion is fixed to the mechanical in a closed state, the holder is temporarily fixed at a predetermined position of the base portion, and then the lid portion is closed to fix the holder to the base portion.
- optical connector assembling method the number of connection times and the number of parts are reduced, and the optical fiber core wire exposed from the cable jacket is easily externally operated during operation.
- Optical connectors that are free from excessive forces such as bending can be assembled easily and stably on site.
- FIG. 1 is a perspective view of a male optical connector according to a first embodiment of the present invention.
- FIG. 2 is a perspective view of the lower side of the male optical connector (before entering the clip) shown in FIG.
- FIG. 3 is a top view of the male optical connector shown in FIG. 1.
- FIG. 4 is a view taken along arrows IV—IV in FIG.
- FIG. 5 is a view taken along arrows V—V in FIG.
- FIG. 6 is a perspective view of the connecting member in FIG.
- FIG. 7 is a perspective view of the spring push in FIG. 5.
- FIG. 8 is a perspective view of the jacket holder in FIG. 5.
- FIG. 10 is a perspective view showing the female optical connector according to the first embodiment of the present invention, which is a connection partner of the male optical connector shown in FIG.
- FIG. 11 is a horizontal sectional view of the female optical connector shown in FIG.
- FIG. 12 is a perspective view of the mechanical sputt collar in FIG. 11.
- FIG. 13 is a perspective view of a jacket holder (for outlet).
- FIG. 14 is a cross-sectional view of the outer cover (for the cabinet) in FIG. 11.
- FIG. 16 A sectional view showing a state where the male optical connector of FIG. 1 and the female optical connector of FIG. 10 are connected.
- FIG. 17 is a horizontal sectional view of another female optical connector that is a connection partner of the male optical connector shown in FIG. 1.
- FIG. 18 is a cross-sectional view showing an indoor cable.
- FIG. 19 is a perspective view of the closed state of the male optical connector (before the optical cable is mounted) according to the second embodiment of the present invention.
- FIG. 20 is a perspective view of the male optical connector shown in FIG. 19 in the open state.
- FIG. 20 is a top view of the male optical connector shown in FIG. 19 in the open state.
- FIG. 22 is a side view of the male optical connector shown in FIG. 19 in the opened state.
- FIG. 20 is a rear view of the male optical connector shown in FIG. 19 in an open state.
- FIG. 24 is a perspective view of the female optical connector according to the second embodiment of the present invention, which is a connection partner of the male optical connector shown in FIG.
- FIG. 25 is a horizontal sectional view of the female optical connector shown in FIG. 24.
- FIG. 26 is a vertical sectional view of the female optical connector shown in FIG. 24.
- FIG. 25 is a perspective view of the female optical connector shown in FIG. 24 in the open state.
- ⁇ 28] A side view of the female optical connector shown in FIG. 24 in the opened state.
- FIG. 30 is a cross-sectional view of the attachment housed in the adapter of FIG. 11.
- FIG. 31 is another perspective view of the female optical connector shown in FIG.
- FIG. 32 is a perspective view of the female optical connector shown in FIG.
- FIG. 1 is a perspective view of a male optical connector according to a first embodiment of the present invention
- FIG. 2 is a perspective view of a lower side of the male optical connector (before inserting a clip) shown in FIG. 1
- FIG. 6 is a perspective view of the connecting member in FIG. 5
- FIG. 7 is a perspective view of the spring push in FIG. 5
- FIGS. 8 and 9 are views showing the male optical connector in FIG.
- FIG. 18 is a cross-sectional view showing an indoor cable.
- the word indicating the direction based on the state shown in Fig. 1 is used. That is, the direction in which the outer jacket fixing portion is positioned with respect to the outer housing is defined as “rear”.
- the optical connector of the present embodiment is a locally assembled single-core optical connector that has a mechanical splice structure and is suitable for on-site assembly, and is used to connect an optical cable with a tight structure such as a drop cable or an indoor cable. It is used.
- the optical cable 19 having a tight structure used in this embodiment is disposed at a position sandwiching the optical fiber core 5 coated with the optical fiber 5a and the optical fiber core 5.
- the tension members 5d and 5d are covered with a cable jacket 13.
- the optical fiber core wire 5 and the tension members 5 d and 5 d are in close contact with the cable jacket 13.
- the diameter of the optical fiber core wire 5 of the present embodiment is 0.25 mm, but optical fiber core wires having various diameters of 0.5 mm or 0.9 mm may be used.
- the male optical connector 1 includes an outer housing 3 that constitutes the distal end side (right side in the drawing) and a rear end side thereof. It has a jacket fixing part 4. An optical cable 19 is inserted into the male optical connector 1 from the rear end side force of the jacket fixing portion 4, and the cable jacket 13 is fixed to the jacket fixing portion 4.
- the outer housing 3 accommodates the mechanical splice 2 as shown in FIGS. It has a mechanical splice housing 9. As shown in FIG. 1 to FIG. 3 and FIG. 5, the outer housing 3 is connected to the mechanical splice housing portion 9 and is located on both sides of the mechanical splice housing portion 9 and faces the distal end side. It has a pair of arms 10 that protrude with force.
- the mechanical splice container 9 has a rectangular tube shape extending in the predetermined axial direction. As shown in FIGS. 4 and 5, the mechanical-splice housing 9 accommodates the ferrule 6 and the mechanical-splice 2 at the front end, and connects the outer cover fixing portion 4 at the rear end. A spring push 12 that engages with the member 8 and the outer housing 3, and is arranged between the spring push 12 and the connecting member 8 to urge the mechanical splice 2 toward the distal end side via the connecting member 8. The spring 11 is accommodated.
- the rear end side of the mechanical splice accommodating portion 9 slides to facilitate the insertion of the spring push 12 therein, as shown in Fig. 3, a pair of slits 3a opened from the rear end side. Is provided. Further, as shown in FIG. 5, an opening 3b for locking the spring push 12 is formed on the peripheral surface of the rear end side of the mechanical splice housing 9.
- the ferrule 6 has a cylindrical shape extending in the predetermined axial direction.
- the ferrule 6 has an optical connection surface 6a at the tip.
- a short optical fiber 7 is fixed in advance with an adhesive or the like and incorporated.
- the short optical fiber 7 has a distal end surface exposed to the outside at the optical connection surface 6a, and a rear end portion (right side in the drawing) extending backward from the ferrule 6 force. That is, the short optical fiber 7 is held by the ferrule 6 across one side in the predetermined axial direction, and extends from the ferrule 6 to the other side in the predetermined axial direction.
- the mecha-cal splice 2 is disposed so as to cover the rear end portion of the ferrule 6 and extends rearward. Further, the mechanical splice 2 has a gap inside, and accommodates the optical fiber 5a exposed from the cable jacket 13 of the short optical fiber 7 and the optical cable 19 extended by the ferrule 6 force.
- This mecha-cal splice 2 contains mecha-cal splice.
- the mechanical splice 2 can be changed from the open state to the closed state by removing the wedge (not shown) inserted from the wedge insertion port 9b (see FIGS. 2 and 4) formed in the portion 9. As described above, the mechanical splice 2 is configured to fix the abutting portion between the short optical fiber 7 and the optical fiber 5a to the mechanical by being changed from the open state to the closed state.
- the mechanical splice 2 has a holding portion and a fixing portion in order from one side (front end side) to the other side (rear end side) in the predetermined axial direction. Ferrule 6 is held in this holding portion.
- the fixed portion has the gap described above. The end face of the short optical fiber 7 extending from the ferrule 6 and the end face of the optical fiber 5a are abutted in this gap. After being abutted in this way, the short optical fiber 7 and the optical fiber 5a are fixed to the fixing part of the mecha-calus Blythe 2.
- a pair of protrusions 2 a for locking the connecting member 8 is provided on the peripheral surface of the rear end portion of the mechanical splice 2. That is, on the peripheral surface of the fixed part of the mechanical splice 2, a pair of protrusions 2a protruding in a direction intersecting the predetermined axis is provided.
- the connecting member 8 is arranged so as to cover the rear end portion of the mechanical splice 2.
- the connecting member 8 has a substantially cylindrical shape extending in the predetermined axial direction.
- the front end side (right side in the drawing) of the connecting member 8 has a larger diameter than the rear end side through a step surface 8f (first contact surface).
- the step surface 8f faces the other side in the predetermined axial direction.
- a pair of cutout portions 8b that are opened from the front end side and extend in a predetermined axial direction are formed on the peripheral surface 8a on the front end side of the connecting member 8, and positions orthogonal to the cutout portions 8b are formed. Is provided with a pair of openings 8c. A projection 2a (see FIG. 4) of the mechanical splice 2 is engaged with the opening 8c.
- the connecting member 8 has a pair of flexible extending portions 8d on the rear end side.
- the connecting member 8 has a pair of locking claws 8e for locking the jacket fixing portion 4 on the rear end side of the extending portion 8d.
- the connecting member 8 accommodates a cylindrical spacer (optical fiber insertion portion) 20 between the extending portions 8d and 8d as shown in FIGS.
- the spacer 20 is made of, for example, metal or plastic. As shown in the figure, a tapered portion 20a having an opening enlarged toward the rear end side that facilitates easy passage of the optical fiber 5a from the rear end side is provided.
- the spring push 12 has a substantially rectangular tube shape extending in the predetermined axial direction.
- a pair of locking claws 12d are provided on the distal end side (right side in the figure) of the spring push 12, and the locking claws 12d are locked to the opening 3b of the mechanical splice accommodating portion 9.
- the spring push 12 accommodates a connecting member 8 and a spring 11 disposed outside the connecting member 8.
- the spring 11 is sandwiched between the inner surface of the spring push 12, that is, the second contact surface facing the step surface 8f, and the step surface 8f of the connecting member 8.
- the mecha-calus Blythe 2 is urged to the front end side through the member 8.
- This arm portion 10 has a plate shape and is flexible in a direction to come in contact with and away from the mechanical splice housing portion 9, and is slightly opened outward to make it easy to attach to the connection partner. ing.
- a locking claw 10a that protrudes outward and can be attached to a connection partner is provided on the distal end side (the right side in the figure) of the arm portion 10. That is, the base end of the arm portion 10 is supported by the mechanical splice housing portion 9.
- the arm portion 10 has a locking claw 10a on the distal end side opposite to the base end.
- a pair of projecting portions 10c projecting outward is provided on the base side, that is, the base end of the arm portion 10. The pair of projecting portions 10c is used when mounting to a connection partner.
- a rib 10 b is attached to the surface of the arm portion 10 facing the mechanical splice housing portion 9.
- the rib 10b is formed so that the midway force of the arm 10 is also at the root.
- the rigidity of the arm portion 10 is moderately increased by the rib 10b.
- the maximum principal stress of the arm 10 including the locking claw 10a is 29.4 MPa (3 kgf / mm 2 ) or less at a pressing load of 9.8 N (lkgf)!
- the jacket fixing part 4 constituting the rear end side of the male optical connector 1
- the jacket fixing portion 4 has a rectangular tube shape extending in the predetermined axial direction.
- the outer casing fixing portion 4 is provided with a partition wall 4a that defines the inside of the outer casing fixing portion 4 as a front end side region and a rear end side region.
- the partition wall 4a is provided with an opening 4b that communicates the region on the front end side and the region on the rear end side.
- the rear end force of the outer housing 3 and the rear end force of the outer housing 3 are also accommodated in the region on the front end side of the outer jacket fixing portion 4 up to the vicinity of the base of the arm portion 10.
- a jacket holder 14 that holds the cable jacket 13 is accommodated in the area on the rear end side of the jacket fixing portion 4.
- the cable jacket 13 and the jacket holder 14 are fixed to the jacket fixing portion 4 by clips 15. Further, as shown in FIGS. 4 and 5, the tapered portion 20a of the spacer 20 that has passed through the opening 4b is accommodated in the region on the rear end side of the outer jacket fixing portion 4!
- the partition wall 4a is provided with a pair of openings 4c.
- the pair of openings 4c extends in the partition wall 4a by being directed toward the outer surface of the jacket fixing portion 4. Locking claws 8e of the connecting member 8 are locked to these openings 4c.
- the upper surface of the jacket fixing portion 4 is provided with a slit 16 opened from the rear side and leading to the inside.
- the slit 16 is provided to facilitate the insertion of the optical fiber core wire 5 into the jacket fixing portion 4.
- the taper portion 20a (see FIGS. 3 and 4) of the spacer can be spread on the upper surface and the lower surface of the jacket fixing portion 4. Thatched window 17 is provided.
- the jacket holder 14 holds the cable jacket 13 sandwiched therein.
- the jacket holder 14 has a through-hole 14a that penetrates vertically across the entire length of the jacket holder 14, and a clamping plate 15a of a clip 15 to be described later is inserted into the through-hole 14a. It is configured to enter.
- the clip 15 is configured in a substantially U shape having a pair of clamping plates 15a, 15b in the axial direction, and is formed with slits 15c formed in the clamping plates 15a, 15b, respectively. (See Fig. 2), 15d (See Fig. 9).
- the clip 15 enters the hole on the opposite side of the holes 4x and 4y formed in the jacket fixing portion 4, and as shown in FIGS. 14 is fixed to the jacket fixing part 4 together with the cable jacket 13.
- the cable jacket 1 Since both the jacket holder 14 holding the cable 3 and the cable jacket 13 are fixed to the jacket fixing part 4, it is firmly fixed.
- the clamping plate 15a of the clip 15 enters the through portion 14a of the jacket holder 14 since the structure in which the clamping plate 15a of the clip 15 enters the through portion 14a of the jacket holder 14 is employed, the total length of the male optical connector 1 including the jacket fixing portion 4 is shortened.
- a key protrusion 22a is provided on the inner surface of the rear end side of the jacket fixing portion 4, and the key holder 22 has a key protrusion at a position corresponding to the key protrusion 22a.
- a notch 22b that allows entry of 22a is formed. This prevents the jacket holder 14 in an inverted state from being inserted into the jacket fixing part 4.
- a cap made of resin for example, is used as a fall-off prevention means to prevent the clip 15 from dropping during transportation and handling. Eighteen.
- the clip 15 is temporarily fixed by a cap 18 in a state where the clip 15 is inserted into the holes 4x and 4y of the jacket fixing portion 4. Further, as shown in FIG. 9, the cap 18 includes a slit 18a at a position corresponding to the slit 16 of the jacket fixing portion 4.
- an optical cable 19 shown in FIG. 18 is formed at a position covering the optical fiber core 5! /, And is divided by a thin-walled portion 5c to include a cable jacket including tension members 5d on both sides. 13 is divided, the optical fiber core wire 5 at the center is exposed for a predetermined length, and the cable jacket 13 covering the tension member 5d is cut.
- the cable jacket 13 is sandwiched and held by the jacket holder 14.
- the coating at the tip of the exposed optical fiber core wire 5 is removed, and the optical fiber 5a is stripped to expose a predetermined length.
- the exposed optical fiber 5a is cleaned, and the tip of the optical fiber 5a is cut so as to be suitable for optical connection.
- the optical fiber 5a is passed through the slit 18a of the cap shown in FIG. 9 and the rear side force of the slit 16 of the jacket fixing part 4 so that the rear end side of the jacket fixing part 4 shown in FIG. 4 and FIG. Located in the area of. Then, as shown in FIG. 9, confirm that the notch 22b of the jacket holder 14 is at a position corresponding to the key protrusion 22a of the jacket fixing part 4, and as shown in FIGS. The optical fiber 5a is moved to the tip side and inserted into the tapered portion 20a of the spacer.
- the insertion is continued, and the jacket holder 14 is accommodated in the area on the rear end side of the jacket fixing portion 4, After confirming that the optical fiber 5a hits the short optical fiber 7 by visually observing the looseness of the optical fiber core 5 or by touching the hand, remove the wedge and close the mechanical splice 2 The short optical fiber 7 and the optical fiber 5a are fixed mechanically.
- FIGS. 10 and 11 are views showing the female optical connector
- FIG. 12 is a perspective view of the mechanical thrust collar in FIG. 11
- FIG. 14 is a perspective view of the jacket holder (for cabinet) in FIG. 13 is a cross-sectional view of another jacket holder (for outlet)
- FIG. 15 is an internal view of the base portion in FIG.
- the female optical connector 101 includes a housing 104 that forms the outer shape thereof.
- the housing 104 includes an adapter 103 that constitutes the front end side (right side in the figure), a mechanical splice accommodation portion 109 that accommodates the mechanical splice 102 (see FIG. 11), a base portion 110 that is connected to the rear end side, and A lid 111 is provided. That is, the housing 104 has an adapter 103, a mechanical splice housing 109, and a base 110 in order from one side (front end side) to the other side (rear end side) in the predetermined axial direction.
- the housing 104 also has a lid portion 111 that opens and closes the base portion 110.
- As the material of the housing 104 polyetherimide, PPS, PBT, polycarbonate, or PES is adopted. Since these materials are excellent in heat resistance and creep resistance, they are optimal for long-term use.
- the optical cable 19 is also inserted with the rear end side force of the mechanical-splice housing portion 109, and the cable jacket 13 is fixed to the base portion 110.
- the adapter 103 has a rectangular tube shape extending in a predetermined axial direction, and includes a cylindrical portion 103a inside as shown in FIG. In the cylindrical portion 103a, a ferrule 106 and a split sleeve 105 for alignment that covers the ferrule 106 are accommodated.
- the ferrule 106 has a cylindrical shape extending in the predetermined axial direction, and incorporates a short optical fiber 7. This short optical fiber 7 extends from the ferrule 106 to the other side in a predetermined axial direction.
- the split sleeve 105 is a substantially cylindrical member and is provided coaxially with the ferrule 106.
- This adapter 103 has a pair of opposing side surfaces 103b, and a pair of side surfaces 103b is connected to a rear end side of the pair of side surfaces 103b for locking a male optical connector 1 as a connection partner.
- An opening 103c is provided.
- the connection partner is a male optical connector having an SC structure
- the opening 103c is used to lock the SC connector attachment housed in the adapter 103 (details will be described later).
- the mechanical splice 102 is closed by removing the wedge, and the short optical fiber 7 and the optical fiber extended from the ferrule 6 are closed. Fix the butt with 5a to the mechanical. That is, the mechanical splice 102 has a holding part and a fixing part in order in a predetermined axial direction. The holding portion holds the ferrule 106, and the fixing portion fixes the short optical fiber 7 extending from the ferrule 106 and the optical fiber 5a in contact with each other.
- the base portion 110 and the lid portion 111 are configured to lead out the cable jacket 13 in a direction that forms 90 ° with the axial direction of the ferrule 106 with a predetermined curvature. That is, the base portion 110 and the lid portion 111 are bent in a predetermined direction that forms a predetermined angle with the predetermined axial direction.
- the base portion 110 accommodates a mechanical thrust bar 108 for fixing the mechanical splice 102 from the rear and an outer cover holder 115 for holding the cable outer cover 13 therebetween.
- the base portion 110 includes a mechanical sp stopper accommodating portion 110a for accommodating the mechanical sput collar 108 and a pair of guide convex portions 110d for guiding the mechanical sput collar 108 in the axial direction of the ferrule 6 (FIG. 15). (Refer to FIG. 4), and a recess 110b into which the protrusion 115a of the jacket holder 115 enters.
- the recess 110b is provided with a protrusion 110c (a shape for temporarily fixing the holder to a predetermined position of the base portion) for temporarily fixing the jacket holder 115 with frictional resistance.
- a pair of openings (not shown) for locking the mechanical sput collar 108 are formed in the mechanical sput brim accommodating portion 110a.
- a surface 108a (contact surface) for pressing the splice 102 is provided.
- the surface 108a is a surface along a surface intersecting a predetermined axis, and is in contact with the end portion on the rear end side of the mechanical splice 102.
- the mechanical stopper 108 includes a curved surface 108b having a curvature so as to lead out the optical fiber core wire 5 in a predetermined direction.
- a groove 108c for guiding the optical fiber core wire 5 is formed on the curved surface 108b.
- the mechanical sput collar 108 has a guide concave portion 108d, and the guide convex portion 11 Od of the base portion 110 shown in FIG. 15 enters the guide concave portion 108d.
- the mechanical thrust collar 108 has a pair of locking claws 108e, and the locking claws 108e are formed in the above-described opening of the base portion 110. By being engaged with a part (not shown), the base part 110 is held.
- the jacket holder 115 is provided with a protrusion 115a, and the protrusion 115a enters the recess 110b of the base 110 as shown in FIG. Therefore, it is accommodated in the base part 110.
- the jacket holder 115 is provided with a claw portion 115b.
- the width of the glove jacket 13 (the upper and lower surfaces in FIG. 18) is held between the outer sleeve 115 and the hook 115b.
- the jacket holder 115 whose thickness in one direction of the cable jacket 13 is thinner than the thickness of the cable jacket 13 in the other direction orthogonal to the one direction, Both side forces are also pinched.
- the jacket holder 115 is arranged on the base 110 so that the other direction of the cable jacket 13 and the predetermined axial direction (the X-axis direction shown in FIG. 31) are substantially the same direction. ing. As a result, the cable jacket 13 (optical cable 19) can be easily bent in a direction crossing the predetermined axial direction.
- the lid 111 is attached to the rear end side of the mechanical splice housing 109 by a hinge.
- the lid portion 111 includes a pair of locking claws 11 la, and is closed by locking the locking claws 11 la to the base portion 110.
- the outer cover holder 115 is pressed against the base 110 while covering the outer cover 115.
- the tension member 5d is removed from the optical cable 19 shown in FIG. 18, and the optical fiber core wire 5 is exposed for a predetermined length.
- the cable jacket 13 is sandwiched between the jacket holders 115 (see FIG. 11) and held.
- the coating at the tip of the exposed optical fiber core wire 5 is removed, and the optical fiber 5a is stripped and exposed for a predetermined length.
- the exposed optical fiber 5a is cleaned, and the tip of the optical fiber 5a is cut so as to be suitable for optical connection.
- the wedge is pulled out and the mechanical splice 102 is closed.
- the butted portion is fixed to the mechanical, and then the optical fiber core wire 5 is guided and bent into the groove portion of the mechanical spreader 108, and the protruding portion 115a of the jacket holder 115 is pushed into the recessed portion 110b of the base portion 110, and the protruding portion 110c Temporarily fix.
- the lid 111 is closed and the jacket holder 115 is fixed to the base 110, so that the female optical connector 101 shown in FIGS. 10 and 11 is obtained.
- FIG. 16 is a state diagram showing a joined state between the male optical connector 1 and the female optical connector 101.
- FIG. First, the outer housing 3 of the male optical connector 1 with the rear end side of the female optical connector 101 facing one side in the predetermined axial direction and the front end side of the female optical connector 101 facing the other side.
- the male optical connector 1 is inserted into the adapter 103 by pushing the projection 10c.
- the male optical connector 1 is inserted, and the locking claw 10a of the outer housing 3 is properly locked to the opening 103c of the adapter 103. In this way, as shown in FIG.
- the distal end side of the outer housing 3 is accommodated in the adapter 103, and the male optical connector 1 and the female optical connector 101 are connected.
- the ferrule 6 is accommodated in the split sleeve 105 and contacts the ferrule 106, and the short optical fibers 7 and 7 are optically connected to each other.
- a locking claw 10a is provided on both sides of the mechanical splice housing 9 that is connected to the chair housing 9 and protrudes toward the connection partner side, and is attached to the connection partner on the tip side. Since the pair of flexible arms 10 are provided, the male optical connector 1 can be easily attached to the connection partner by locking the locking claw 10a to the connection partner such as the adapter 103 described above. The As a result, workability is improved. Further, conventionally, the optical fiber core wire 5 may be stored in a storage tray or the like. In the male optical connector 1 of the present invention, storage in a storage tray or the like is not required. As a result, manufacturing costs are reduced and workability is improved.
- the mechanical splice 2 is housed in the outer housing 3 so as to be movable in the axial direction, and is biased toward the distal end side by the spring 11, so that the female optical connector 101 and
- a ferrule back occurs, such as with optical connection
- the outer cover fixing part 4 connected to the mechanical splice 2 with the ferrule 6 and the outer part of the cable fixed to the outer cover fixing part 4 Cover 13 moves backward with the ferrule back. For this reason, the optical fiber core wire 5 exposed from the cable jacket 13 is not bent, and disconnection at the time of knocking the ferrule is surely prevented, and loss due to bending of the optical fiber core wire 5 is eliminated.
- the locking claw 10a is provided on the outer side of the arm part 10, and the arm part 10 is opened to a certain amount outward in advance. Therefore, when connecting to the female optical connector 101, the opening and closing claw 10a is locked to the adapter 103 after the flexible arm portion 10 is bent inward. For this reason, the locking claw 10a is securely locked to the adapter 103, and a good click feeling is generated at the time of locking.
- the locking claw 10a can be easily engaged with the adapter 103 in a state in which the arm portion 10 is not squeezed by an external force. Stopped.
- the ferrule 6, the mecha-cal splice 2, and the jacket fixing part 4 are connected, In the case of a configuration in which ferrule back occurs, it is difficult to mount the female optical connector 101 with the outer cover fixing portion 4, and therefore it is particularly effective to mount the female optical connector 101 by pushing the protruding portion 10c. .
- the arm portion 10 includes the rib 10b and the rigidity of the flexible arm portion 10 is appropriately increased, the locking claw 10a is securely locked to the adapter 103 and light is generated by the occurrence of creep. Connection failure is prevented.
- the projection 9a is provided on the outer surface of the mechanical splice housing portion 9 that faces the arm portion 10, the arm portion 10 abuts against the projection 9a, so that the arm portion 10 is excessively bent inward. L3 ⁇ 4 loss is prevented.
- the spacer 20 includes a tapered portion 20a whose opening is enlarged toward the rear end side, the backward force of the spacer 20 is also tapered when the optical fiber 5a is inserted.
- the portion 20a is used as a guide for inserting the optical fiber 5a, so that workability is improved.
- the jacket fixing part 4 includes a slit 16, and the optical fiber core wire 5 is positioned in the rear end side region of the upper force jacket fixing part 4 through the slit 16 as shown in FIG.
- the tip of the optical fiber core wire 5 can be brought close to the tapered portion 20a of the spacer, so that the male optical connector 1 can be assembled easily and stably on site.
- the outer cover fixing portion 4 includes the piercing window 17, and the insertion of the optical fiber 5a into the tapered portion 20a of the spacer and the slackness of the optical fiber 5a can be confirmed, workability is improved.
- the wing windows 17 of the jacket fixing portion 4 are provided on a plurality of surfaces, the daylighting property is improved and the visibility is improved.
- the window 17 of the outer cover fixing part 4 is on the upper and lower surfaces, when using a tool (not shown) with a wedge that is inserted into and removed from the mechanical force splice 2, the tool side The V-protrusion (not shown) that guides the optical fiber core wire 5 to the spacer 20 can be inserted into the outer cover fixing portion 4, thereby improving workability.
- the rear end force of the outer housing 3 is also accommodated in the region near the base of the arm portion 10 in the distal end side of the outer cover fixing portion 4, and the outer cover fixing portion 4 is overlapped in the axial direction. Therefore, the rigidity against the external force acting when the optical cable 19 is bent and pulled is increased.
- the outer cover fixing portion 4 has the cap 18 in place, and when working in the field, the clip 15 is pushed in with the cap 18 attached, so that the cape Since the outer cover 13 can be fixed to the outer cover fixing part 4, the loss of the clip 15 is eliminated and it is not necessary to prepare the clip 15 on site. Also, workability is improved
- the rear end of the spacer 20 may be configured in a groove shape having a semicircular cross section so that the optical fiber can be placed on the upper surface.
- the guide width may be increased toward the upper side.
- a substantially V-shaped guide portion may be provided in addition to the upper portion of the groove shape.
- the housing 104 constituting the female optical connector 101 since the housing 104 constituting the female optical connector 101 includes the adapter 103, the number of times of connection and parts compared to the case where a relay adapter is used. The score is reduced. As a result, low cost is achieved.
- the jacket holder 115 holding the cable jacket 13 is arranged on the base portion 110 of the housing 104 and the lid portion 111 is closed, it is fixed to the housing 104. Unreasonable forces such as bending from the outside are not applied to the optical fiber core 5 exposed from 13 when working. As a result, the optical fiber core wire is easily protected.
- the optical fiber core wire 5 may be stored in a storage tray or the like, but the female optical connector 101 of the present invention does not require storage in the storage tray or the like. As a result, manufacturing costs can be reduced and workability can be improved.
- the number of connection operations and the number of parts are reduced, and the operation is performed on the optical fiber core 5 exposed from the cable jacket 13 with a simple configuration.
- the female optical connector 101 which sometimes eliminates excessive force such as bending from the outside, is easily and stably assembled at the site, and the workability is improved.
- the base portion 110 includes a mechanical sputt bar 108 for fixing the mechanical splice 102 from the rear side. Since the groove 108c for guiding the core wire 5 is provided, the groove 108c serves as a guide for the optical fiber core wire 5 to facilitate the arrangement and improve workability, and the optical fiber core wire 5 is connected to the surroundings. Contact is prevented and disconnection of the optical fiber core wire 5 is prevented.
- the groove 108c is positioned on the upper side when the female optical connector is assembled. If it exists, visibility will be improved and workability
- both the base portion 110 and the lid portion 111 are configured to extend in a direction having a predetermined curvature of 90 ° with respect to the axis of the ferrule 106.
- the cable jacket 13 (optical cable 19) can be extended in the above-mentioned extending direction without bending the cable jacket 13, and the optical fiber core 5 is bent without bending the cable jacket 13. Accordingly, the lengths of the female optical connector 101 and the optical cable 19 are shortened.
- the female optical connector 101 since the female optical connector 101 has a shape for temporarily fixing the outer cover holder 115 to a predetermined position of the base portion 110, the outer cover holder 115 is not closed until the lid portion 111 is closed. Shifting from a predetermined position or falling off is prevented, and workability is improved.
- the width and thickness direction of the cable jacket 13 (the direction in which the tension members are juxtaposed) differ by 90 °. It may be necessary to bend the cable jacket 13 in the width-thickness direction. In such a case, another jacket holder 114 that holds the cable jacket 13 can be used instead of the jacket holder 115.
- this other jacket holder 114 holds the cable jacket 13 in the same direction as the jacket holder 115, and is 90 ° around the axis with respect to the jacket holder 115. ° It has a shape that is fixed to the base part 110 with its direction changed. That is, as shown in FIG. 32, in the jacket holder 114, the other direction of the cable jacket 13 in the base portion 110 is the predetermined axial direction (axis X direction shown in FIG. 32) and the predetermined direction (shown in FIG. 32). It is arranged on the base part 110 so as to be substantially orthogonal to the (Y direction).
- the jacket holder 114 is provided with claw portions 114b that sandwich the width-thin direction force of the cable jacket 13 (upper and lower surfaces in FIG. 18). 17 and the protrusion 114a enters the recess 110b of the female optical connector 100 shown in FIG. 11, as shown in FIG.
- the other jacket holder 114 allows the width and thickness direction of the cable jacket 13 to be easily changed by 90 ° and bend easily, and can be easily applied to cabinets and outlets.
- the female optical connector 100 shown in FIG. 17 includes a concave portion 110b in which the jacket holder 114 is mounted on the base portion 110 thereof.
- the base portion 110 and the lid portion 111 lead the cable jacket 13 in a direction that forms a 90 ° angle with the axial direction of the ferrule 106 with a predetermined curvature. It is good also as a structure which leads out the cable jacket 13 in the other direction (for example, diagonal direction except 0 degree) with respect to the axial direction of the ferrule 106.
- FIG. 19 is a perspective view of the male optical connector (before the optical cable is attached) in a closed state
- FIGS. 20 to 23 are views showing the opened state of the female optical connector in FIG.
- the male optical connector 31 of the second embodiment differs from the male optical connector 1 of the first embodiment in that the outer optical connector 31 shown in FIGS. 19 to 23 is used instead of the outer cover fixing portion 4 shown in FIG.
- a fixed portion 32 is provided, an outer cover holder 37 shown in FIG. 21 is provided instead of the outer cover holder 14 shown in FIG. 5, and the clip 15 shown in FIG. 5 is eliminated.
- the jacket fixing part 32 is connected to the mechanical splice via a connecting member having the same function as that of the first embodiment.
- Part main body 33, first movable part 35 and second movable part 34 slidable in the axial direction with respect to outer cover fixing part main body 33, and lid 36 that can be opened and closed.
- lid 36 that can be opened and closed.
- the jacket fixing portion main body 33 is disposed so as to cover the rear end side of the outer housing 3, and has a V-groove 33a (Fig. 20) on which the optical fiber is placed. See). Further, as shown in FIGS. 19 and 23, a pair of convex portions projecting outward extend in the axial direction on the side surface of the outer casing fixing portion main body 33, and the convex portions support the second movable portion 34. It is a guide part 33 b for guiding.
- the second movable portion 34 is configured to cover the bottom surface and both side surfaces of the outer jacket fixing portion main body 33.
- the side surface of the second movable portion 34 is supported by the proposed inner portion 33b of the outer casing fixing portion main body 33 at a position corresponding to the guide portion 33b of the outer casing fixing portion main body 33.
- a guide part 34a which is a concave part is provided.
- the second movable part 34 is configured to be slidable with respect to the axial direction of the jacket fixing part main body 33 by the guide part 34 a and the guide part 33 b of the jacket fixing part main body 33. Further, as shown in FIG.
- an opening 34b is opened from the rear end side at the bottom of the second movable portion 34, and the axial peripheral edge forming the opening 34b is shown in FIG.
- a recess extends, and this recess serves as a guide portion 34c for guiding the first movable portion 35.
- the first movable portion 35 is formed in a plate shape, and the outer cover holder 37 is placed thereon. As shown in FIGS. 19 and 23, the end surface of the first movable portion 35 in the axial direction is supported by the guide portion 34c of the second movable portion 34 at a position corresponding to the guide portion 34c of the second movable portion 34. Guide portions 35a, which are convex portions, are provided. The first movable portion 35 is configured to be slidable in the axial direction of the second movable portion 34 by the guide portion 35a and the guide portion 34c of the second movable portion 34.
- the jacket holder 37 is provided with a concave portion opened from the upper side, and is configured to hold the cable jacket sandwiched between the protrusions. .
- the lid 36 is attached to the upper surface of the jacket fixing portion 32 by a hinge.
- the lid portion 36 is provided with a pair of locking claws 36a on the rear end side, and is closed by locking the locking claws 36a to the second movable portion 34, so that the cable jacket and the jacket holder are closed.
- the cover 37 is covered and fixed to the jacket fixing part 32.
- the optical fiber core wire 5 is exposed for a predetermined length from the optical cable 19, and the tip of the optical fiber 5a is cut so as to be suitable for optical connection.
- the cable jacket 13 of the optical cable 19 is sandwiched and held by the jacket holder 37, and the jacket holder 37 is placed on the first movable portion 35.
- the optical fiber 5a is placed in the V-groove 33a.
- the first movable part 35 is slid to the front end side and is accommodated in the second movable part 34.
- the second movable part 34 is slid to the front end side, and the second movable part 34 is accommodated in the jacket fixing part main body 33.
- the mechanical splice 2 is closed and the short optical fiber 7 is closed.
- optical fiber 5a are fixed mechanically.
- the lid portion 36 is closed, and the jacket holder 37 is fixed to the jacket fixing portion 32 to obtain a male optical connector 31 (a cable or the like is not shown).
- the male optical connector 31 having such a configuration is particularly effective when used in a rosette.
- FIG. 24 is a perspective view of a female optical connector to which the male optical connector shown in FIG. 19 is connected.
- FIGS. 25 and 26 are cross-sectional views of the female optical connector shown in FIG. 24.
- FIG. 27 and FIG. FIG. 25 is a diagram illustrating the female optical connector shown in FIG. 24 in an open state.
- the female optical connector 131 is different from the female optical connector 101 shown in FIGS. 10 and 11 in that the housing 104 including the base portion 110 and the lid portion 111 is replaced with FIGS.
- the housing 134 includes the base portion 140 and the lid portion 141 shown in FIG. 11, and instead of the mechanical support lever 108 and the outer cover holder 114 shown in FIG. 11, the mechanical push stopper 138 and the outer cover holder 135 shown in FIGS. It is a point.
- the housing 134 has a substantially rectangular tube shape, and a mechanical-calsplice accommodating portion 139 that accommodates the adapter 103 and mecha-calsplice 102.
- the mechanical splice accommodating portion 139 is provided with a base portion 140 and a lid portion 141 provided on the rear side and extending linearly rearward.
- the base part 140 is divided into a base part main body 142 connected to the mechanical splice housing part 139 and a movable base part 143 slidable in the axial direction with respect to the base part main body 142.
- the mechanical splice accommodating portion 139 and the base portion main body 142 constitute a housing main body 136.
- the mechanical splice accommodating portion 139 includes a pair of opening portions 139a for accommodating the mechanical sp stopper 138 therein and locking the mechanical sput collar 138 on the opposite side walls. Yes.
- the mechanical sput collar 138 has a substantially cylindrical shape and is disposed so as to cover the rear end side of the mechanical splice 102. As shown in FIG. 138a is engaged with the opening 139a of the mechanical-scalar splice accommodating part 139, and the mechanical-scalar splice 102 is fixed to the mechanical-scalar splice accommodating part 139 from the rear end side.
- the opening is enlarged toward the rear end side, and the mounting of the upper force is facilitated.
- a slit that connects the inside and the outside is preferably provided with a tapered portion 138b formed in the upper part of the rear end.
- the movable base portion 143 has its side wall disposed outside the side wall of the housing body 136, and as shown in Fig. 26, the outer plate holder 135 is provided on the bottom plate 143a. It is placed. As shown in FIG. 27, a guide part 143b which is a concave part is formed on the opposite side wall of the movable base part 143, and this guide part 143b is supported by the guide part 142b of the housing body 136.
- the movable base portion 143 is configured to be slidable in the axial direction of the base portion main body 142 by the guide portion 143b and the guide portion 142b of the nodding main body 136.
- the jacket holder 135 is configured to hold the cable jacket with the width and thickness direction of the cable jacket in the horizontal direction. It is also acceptable to use a jacket holder that holds the cable jacket in the vertical direction.
- the lid 141 is attached to the upper surface of the base body 142 by a hinge, as shown in Figs.
- the lid portion 141 includes a pair of locking claws 141a on the rear end side, and the locking claws 141a are locked to the base portion main body 142 to close the cable jacket and the jacket holder 135. It is configured to cover and fix them to the base body 142.
- the optical fiber core wire 5 is exposed from the optical cable 19 for a predetermined length in the same manner as the method for assembling the male optical connector 1 of the first embodiment.
- the cable jacket 13 of the optical cable 19 is sandwiched and held by the jacket holder 135, and the tip of the optical fiber 5a is cut so as to be suitable for optical connection.
- the jacket holder 135 is placed on the movable base part 143. At this time, it is placed in the groove of the taper portion 138b of the mechanical sputt collar through the slit.
- the movable base portion 143 is slid to the distal end side to be accommodated in the base portion main body 142. After confirming that the optical fiber 5a hits the short optical fiber 7 by visually observing that the optical fiber core 5 is loosened or by touching the hand, close the mechanical splice 2 and close the short optical fiber 5a. The fiber 7 and the optical fiber 5a are fixed mechanically.
- the lid portion 141 is closed, and the jacket holder 135 is fixed to the base portion 140 to obtain the female optical connector 131 (optical cable and the like are not shown).
- the female optical connector 131 may be configured to have a shape (an optical cable or the like is not shown) for temporarily fixing the jacket holder 135 to the movable base portion 143.
- the male optical connector 51 is a male optical connector having an SC structure. This male optical connector 51 is different from the male optical connector 1 shown in FIG. 1 in that it does not have a locking claw 10a (arm portion 10) for locking to a connection partner as shown in FIG.
- the outer housing 53 is covered with the second outer housing 60 connected to the outer housing 53, and the outer cover fixing portion 54 is connected to the outer housing 53 by being extrapolated and extends backward. This is the point covered by the spring push 61.
- Reference numeral 58 denotes a connecting member that connects the mechanical splice 2 and the jacket fixing portion 54.
- FIG. 30 is a cross-sectional view of the attachment housed in the adapter 103 of FIG.
- This attachment 151 is accommodated in the adapter 103 of the female optical connector 101 shown in FIG. 11, and is used when the male optical connector 51 having the SC structure is connected.
- the attachment 151 includes a pair of locking claws 151a extending on the distal end side for mounting the male optical connector 51 to be connected, and the locking claws 151a are attached to the attachment.
- the rear end side of the attachment 151 is provided with a pair of convex portions 151b shown in FIG. 30 that protrudes outward and enters the opening 103c of the adapter 103 shown in FIG.
- an opening 151c for inserting the cylindrical portion 103a of the female optical connector 101 shown in FIG. 11 is formed in the attachment 151 in the axial direction.
- connection between the male optical connector 51 shown in FIG. 29 and the female optical connector 101 shown in FIG. 11 will be described.
- the attachment 151 shown in FIG. 30 is inserted into the adapter 103 shown in FIG. 11, and the convex portion 151b shown in FIG. 30 is locked to the opening 103c shown in FIG.
- the cylindrical portion 103a shown in FIG. 11 is inserted into the opening 151c shown in FIG. 30, and the locking claw 15la shown in FIG. 30 protrudes from the tip surface force of the adapter 103 shown in FIG. It is in a state.
- the male optical connector 51 shown in FIG. 29 is inserted into the adapter 103 shown in FIG. 11, holding the second outer housing 60 or the spring push 61, and the locking claw shown in FIG.
- the 151a is mounted on the second water housing 60 shown in FIG. 29, and the ferrules are brought into contact with each other to complete the connection between the male optical connector 51 and the female optical connector 101.
- the second outer housing 60 or the spring push 61 can be connected (the jacket fixing portion 54 is covered by the spring push 61). Therefore, even if the ferrule back is generated, it can be easily attached to the female optical connector 101.
- the adapter 103 of the female optical connector 101 accommodates and includes the attachment 151, the connection to the male optical connector 51 having the SC structure is possible, and the versatility is improved and the locking is achieved. Since the claw 151a is configured not to protrude the tip surface force of the adapter 103, the adapter 103 is used as a guide for the male optical connector 51 instead of the locking claw 151a as a guide for the male optical connector 51. The type optical connector 51 is easily attached.
- the force that the spring push 61 covers the jacket fixing portion 54 is configured so that the second outer housing 60 is the jacket fixing portion. It is good also as a structure which covers 54.
- the attachment 151 is not applicable only to the female optical connector 101.
- the present invention can also be applied to the female optical connector 100 shown in FIG. 17 and the female optical connector 131 shown in FIG.
- connection partner of the female optical connectors 100, 101, 131 having the attachment 151 is not limited to the male optical connector 51 having the above-mentioned shape, and is a commercially available SC optical male connector. But of course.
- the present invention has been specifically described above based on the embodiment, the present invention is not limited to the above embodiment.
- the male optical connector 1 and the female optical connector 101 are connected, and the male optical connector 31 and the female optical connectors 100 and 1 31 are connected.
- the optical connector 1 can be connected to the female optical connectors 100 and 131, and the male optical connector 31 and the female optical connector 101 can be connected to each other. is not.
- the male optical connectors 1 and 31 including the arm portion 10 of the above-described embodiment are provided with an outer housing or an outer housing in the same manner as the outer cover fixing portions 4 and 32 shown in FIG.
- This configuration which can be completely covered by a member connected to the spring (for example, a spring push), enables easy installation even when ferrule back occurs, as in FIG.
- the spring for example, a spring push
- optical connectors 1, 31, 51, 100, 101, and 131 of the above embodiment have been described as single-core optical connectors, but may be adopted as multi-fiber optical connectors.
- the optical connector of the present invention since an excessive force such as bending from the outside does not act on the optical fiber core wire during operation with a simple configuration, the optical fiber core wire is Workability is improved because it is easily protected and the optical connector is easily attached to the connection partner. Further, according to the optical connector assembling method of the present invention, since such an optical connector can be assembled easily and stably at the site, workability is improved.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020077006228A KR101167344B1 (ko) | 2004-08-20 | 2005-08-19 | 광 커넥터 및 광 커넥터의 조립 방법 |
JP2006531877A JP4457111B2 (ja) | 2004-08-20 | 2005-08-19 | 光コネクタ、及び光コネクタの組立方法 |
US11/660,539 US8297850B2 (en) | 2004-08-20 | 2005-08-19 | Optical connector, and method of assembling optical connector |
EP05780448A EP1793250A4 (en) | 2004-08-20 | 2005-08-19 | OPTICAL CONNECTOR AND METHOD FOR ASSEMBLING OPTICAL CONNECTOR |
US13/012,346 US20110116745A1 (en) | 2004-08-20 | 2011-01-24 | Optical connector, and assembling method of optical connector |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004241407 | 2004-08-20 | ||
JP2004241446 | 2004-08-20 | ||
JP2004-241446 | 2004-08-20 | ||
JP2004-241407 | 2004-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006019161A1 true WO2006019161A1 (ja) | 2006-02-23 |
Family
ID=35907544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015147 WO2006019161A1 (ja) | 2004-08-20 | 2005-08-19 | 光コネクタ、及び光コネクタの組立方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US8297850B2 (ja) |
EP (1) | EP1793250A4 (ja) |
JP (1) | JP4457111B2 (ja) |
KR (1) | KR101167344B1 (ja) |
CN (1) | CN100533191C (ja) |
WO (1) | WO2006019161A1 (ja) |
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Cited By (13)
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JP2007240855A (ja) * | 2006-03-08 | 2007-09-20 | Fujikura Ltd | 光コネクタ |
JP2008176146A (ja) * | 2007-01-19 | 2008-07-31 | Sumitomo Electric Ind Ltd | 光コネクタ |
JP2008281751A (ja) * | 2007-05-10 | 2008-11-20 | Fujikura Ltd | 光コンセント |
JP2009139837A (ja) * | 2007-12-10 | 2009-06-25 | Furukawa Electric Co Ltd:The | 光コネクタ |
US8478100B2 (en) | 2008-11-10 | 2013-07-02 | Sumitomo Electric Industries, Ltd. | Optical cable gripping member |
WO2010053003A1 (ja) | 2008-11-10 | 2010-05-14 | 住友電気工業株式会社 | 光接続用ケーブル把持部材 |
US8403569B2 (en) | 2009-01-19 | 2013-03-26 | Corning Cable Systems Llc | Termination system for fiber optic connection |
US8459880B2 (en) | 2009-07-31 | 2013-06-11 | Corning Cable Systems Llc | Fiber optic connectors, cable assemblies and methods for making the same |
WO2018135235A1 (ja) * | 2017-01-20 | 2018-07-26 | 日本通信電材株式会社 | 光コネクタ |
JPWO2018135235A1 (ja) * | 2017-01-20 | 2019-11-07 | 日本通信電材株式会社 | 光コネクタ |
US10866365B2 (en) | 2017-01-20 | 2020-12-15 | Japan Communication Accessories Manufacturing Co., Ltd. | Optical connector |
JP7089485B2 (ja) | 2017-01-20 | 2022-06-22 | 日本通信電材株式会社 | 光コネクタ |
KR20230058433A (ko) | 2020-09-04 | 2023-05-03 | 니혼 츠신 덴자이 리미티드 | 광 커넥터 |
Also Published As
Publication number | Publication date |
---|---|
CN1969212A (zh) | 2007-05-23 |
EP1793250A1 (en) | 2007-06-06 |
JP4457111B2 (ja) | 2010-04-28 |
EP1793250A4 (en) | 2007-11-14 |
KR20070043053A (ko) | 2007-04-24 |
CN100533191C (zh) | 2009-08-26 |
JPWO2006019161A1 (ja) | 2008-05-08 |
KR101167344B1 (ko) | 2012-07-19 |
US20110116745A1 (en) | 2011-05-19 |
US20080107381A1 (en) | 2008-05-08 |
US8297850B2 (en) | 2012-10-30 |
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