WO2022050224A1 - 光ファイバ接続用治具及び光コネクタ - Google Patents
光ファイバ接続用治具及び光コネクタ Download PDFInfo
- Publication number
- WO2022050224A1 WO2022050224A1 PCT/JP2021/031752 JP2021031752W WO2022050224A1 WO 2022050224 A1 WO2022050224 A1 WO 2022050224A1 JP 2021031752 W JP2021031752 W JP 2021031752W WO 2022050224 A1 WO2022050224 A1 WO 2022050224A1
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- WIPO (PCT)
- Prior art keywords
- optical connector
- base
- optical fiber
- optical
- width direction
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 175
- 239000013307 optical fiber Substances 0.000 title claims abstract description 98
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000003780 insertion Methods 0.000 description 16
- 230000037431 insertion Effects 0.000 description 16
- 238000005192 partition Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
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
-
- 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
-
- 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
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—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
- G02B6/3898—Tools, e.g. handheld; Tuning wrenches; Jigs used with connectors, e.g. for extracting, removing or inserting in a panel, for engaging or coupling connectors, for assembling or disassembling components within the connector, for applying clips to hold two connectors together or for crimping
-
- 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
- G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
- G02B6/3806—Semi-permanent connections, i.e. wherein the mechanical means keeping the fibres aligned allow for removal of the fibres
Definitions
- the present disclosure relates to an optical fiber connection jig and an optical connector.
- This application claims priority based on Japanese Application No. 2020-148895 of September 4, 2020, and incorporates all the contents described in the Japanese application.
- Patent Document 1 describes a mechanical splice type optical connector and a jig for an optical connector.
- the optical connector has a capillary with a built-in short optical fiber.
- the capillary is provided with a V-groove substrate and a holding lid side by side.
- the V-groove board and the holding lid are sandwiched by a U-shaped clamp spring.
- a slit-shaped wedge insertion hole is formed in the V-groove substrate and the holding lid.
- the jig for the optical connector has a convex wedge on the lower surface of the wedge plate.
- the optical connector jig includes a pair of arms protruding from the wedge plate portion, a pair of columns, and a lock portion. Each of the pair of struts engages the optical connector, and the locking section regulates the pair of arms from approaching each other.
- Patent Document 2 describes a tool for an optical connector and an optical connector with a tool.
- the optical connector tool includes a connector holder portion, an insertion member driving portion, and an insertion member.
- the connector holder portion is assembled to the outside of the optical connector.
- the insertion member drive portion has a ring shape in which the connector holder portion is incorporated.
- the insertion member is inserted into an optical connector that protrudes from the insertion member driving portion and is held in the connector holder portion.
- the insertion member is pulled out from the optical connector by applying a lateral pressure to the ring-shaped insertion member driving portion.
- Patent Document 3 describes an optical fiber connection tool and an optical connector with an optical fiber connection tool.
- the optical fiber connection tool includes an insertion portion for opening and closing the clamp portion of the optical connector, a pair of arms for holding the optical connector, and an insertion portion into which a convex portion formed on the outside of the optical connector is inserted.
- the arm has a holding portion for holding the optical connector and a driving portion for removing the insertion portion from the clamp portion.
- Patent Document 4 describes an optical fiber connection jig used when connecting an optical fiber to a mechanical splice type optical connector.
- the optical fiber connection jig includes a substantially rectangular parallelepiped base and a rotating arm. On the upper surface of the base, a connector mounting portion on which the optical connector plug is mounted and a fiber guide portion for guiding the optical fiber strands are provided.
- a pair of wedges is provided on the upper surface of the rotating arm. The wedge is inserted into the wedge insertion slot provided at the bottom of the mechanical splice, and the fiber insertion space of the mechanical splice is opened.
- the rotating arm has an operating portion, and the rotating arm is rotated by the operation of the operating portion, and the wedge is pulled out from the wedge insertion port.
- Japanese Unexamined Patent Publication No. 2010-06121 Japanese Unexamined Patent Publication No. 2006-139212 Japanese Unexamined Patent Publication No. 2018-163303 Japanese Unexamined Patent Publication No. 2007-121886
- the optical fiber connection jig is an optical fiber connection jig used for an optical connector having a mechanical splice for connecting an optical fiber and a built-in fiber to each other.
- the optical fiber connection jig extends in the direction in which the optical fiber and the built-in fiber extend, and has a plate-shaped base that is placed on the optical connector so as to cover the optical connector and a plate-shaped base that protrudes from the base and is inserted into the mechanical splice. It is provided on both sides of the width direction of the base, and the operation part that protrudes in the width direction from the optical connector, and on both sides of the width direction of the base on one side in the longitudinal direction of the base. It is provided and is provided on each of a pair of first engaging portions projecting toward the optical connector and both sides in the width direction of the base on the other side in the longitudinal direction of the base, and projecting toward the optical connector. It comprises a pair of second engaging portions.
- the optical connector according to one aspect of the present disclosure includes the above-mentioned optical fiber connection jig and mechanical splice, and the wedge portion of the optical fiber connection jig is inserted into the mechanical splice.
- FIG. 3 is a cross-sectional view schematically showing an optical fiber extending from a mechanical splice, a ferrule, a built-in fiber, and a cable of the optical connector of FIG. 1. It is a figure which shows typically the state which the wedge part is inserted into the mechanical splice of FIG.
- FIG. 8 is a side view of the optical connector connecting jig of FIG. 8 as viewed from one side in the longitudinal direction thereof. It is a side view which looked at the optical connector connection jig of FIG. 8 from the other side in the longitudinal direction.
- the optical fiber connection jig when the optical fiber connection jig is attached to the optical connector and the optical fiber connection jig does not have the function of preventing the optical fiber from coming off from the optical connector, vibration or impact is generated when the optical connector is transported. There is a concern that the optical fiber connection jig may fall off due to such factors.
- the above-mentioned optical fiber connecting jig having a wedge may be provided with another component for preventing the optical fiber from coming off from the optical connector. In this case, since it is necessary to remove the wedge after releasing the separate part, two actions are required before removing the wedge. Therefore, there is room for improvement in the operability of the operation of removing the wedge.
- the present disclosure discloses an optical fiber connection jig and an optical fiber connection jig that can prevent the optical connector connection jig from falling off from the optical connector and improve operability when the optical connector connection jig is removed from the optical connector. It is intended to provide an optical connector.
- the optical connector connection jig is an optical fiber connection jig used for an optical connector having a mechanical splice for connecting an optical fiber and a built-in fiber to each other.
- the optical fiber connection jig extends in the direction in which the optical fiber and the built-in fiber extend, and has a plate-shaped base that is placed on the optical connector so as to cover the optical connector and a plate-shaped base that protrudes from the base and is inserted into the mechanical splice.
- This optical connector connecting jig has first engaging portions provided on both sides in the width direction of the base on one side in the longitudinal direction of the base, and both sides in the width direction of the base on the other side in the longitudinal direction of the base. It is provided with a second engaging portion provided in each of the above. Therefore, since the optical connector is engaged with the optical connector on one side and the other side in the longitudinal direction of the base and on one side and the other side in the width direction of the base, the optical connector connecting jig is prevented from falling off from the optical connector. Can be suppressed. Even if each of the four engaging parts of the optical connector connecting jig receives vibration or impact due to engagement with the optical connector, the optical connector connecting jig is less likely to fall off. Can be done.
- This optical connector connecting jig includes an operation unit that protrudes on both sides in the width direction from the optical connector. Therefore, the optical connector connecting jig can be removed by one action by pinching the operation portions protruding on both sides in the width direction and pulling up the optical connector connecting jig from the optical connector. Therefore, the operability of the operation of removing the optical connector connection jig can be improved.
- Each of the pair of first engaging portions may be engaged with an inner housing accommodating the mechanical splice.
- Each of the pair of second engaging portions may engage the outer housing that houses the inner housing.
- the portion of the optical connector with which the first engaging portion is engaged can be made different from the portion of the optical connector with which the second engaging portion is engaged.
- the height at both ends of the operation unit in the width direction with respect to the base may be higher than the height at the center portion in the width direction of the operation unit with respect to the base.
- the height of the pair of both ends of the operating portion is higher than the height of the central portion, it is possible to pinch the pair of both ends to make it easier to pull up the operating portion. Therefore, the operability of pulling out the optical connector connecting jig can be further improved.
- the operation unit may be located near the connection portion where the optical fiber and the built-in fiber are connected to each other in the base portion. In this case, the operation unit is provided at a position closer to the connection unit. Therefore, when the optical connector connection jig is pulled up from the optical connector by the operation unit, the optical fiber and the built-in fiber can be immediately connected at the connection unit. Therefore, the optical fiber and the built-in fiber can be connected in advance.
- At least a part of the base and the wedge part may be made of a transparent resin.
- the optical connector can be visually recognized via the base and the wedge portion.
- the connection state of the optical fiber and the built-in fiber can be confirmed by the leaked light from the connection point.
- the above-mentioned optical connector connection jig may be provided with a convex lens protruding from the base to the opposite side of the wedge portion. In this case, the leaked light from the connection points of the optical fiber and the built-in fiber can be magnified by the convex lens, so that the connection state can be confirmed more easily.
- the optical connector according to the embodiment includes the above-mentioned optical fiber connection jig and mechanical splice, and the wedge portion of the optical fiber connection jig may be inserted into the mechanical splice.
- the optical connector connecting jig since the optical connector connecting jig is attached to the optical connector, it is not necessary to attach the optical connector connecting jig at the site of the connection work. Therefore, the work of connecting the optical fiber to the optical connector 1 can be performed more easily.
- FIG. 1 is a perspective view showing an exemplary optical connector 1 according to an embodiment.
- FIG. 2 is a vertical cross-sectional view of the optical connector 1 of FIG.
- the optical connector 1 according to the present embodiment is arranged inside the connector main body 2, the optical fiber connection portion 3 incorporated in the connector main body 2, and the connector main body 2, for example. It includes a spring 4 and an outer housing 10 (hereinafter, also referred to as a “knob”) that covers the connector main body 2.
- the optical fiber connection portion 3 has, for example, a mechanical splice 5 and a ferrule 6 attached to the mechanical splice 5.
- the directions in which the ferrule 6 is provided when viewed from the mechanical splice 5 may be described as “front”, “front side”, “front”, and the opposite directions may be described as “rear”, “rear side”, and “rear”. .. However, these directions are for convenience of explanation and do not limit the position or arrangement of the parts.
- the optical connector 1 has, for example, a long shape extending along the optical cable C.
- the connector main body 2 includes, for example, an inner housing 7 extending along the longitudinal direction D1 of the optical connector 1 and a rear cover 8 covering the inner housing 7.
- the directions in which the rear cover 8 is provided with respect to the inner housing 7 may be described as “upper”, “upper”, “upper”, and the opposite directions are referred to as “lower”, “lower”, and “lower”. ..
- the direction in which the inner housing 7 and the rear cover 8 are lined up will be described as the height direction D2, and the direction orthogonal to both the longitudinal direction D1 and the height direction D2 will be described as the width direction D3.
- these directions do not limit the position or arrangement of the parts.
- the optical connector 1 is a field-installed optical connector.
- the optical connector 1 is connected to an optical cable C having an optical fiber C1.
- the optical cable C includes, for example, an optical fiber C1 having an optical fiber core wire and an outer cover C2 covering the optical fiber C1.
- the connector main body 2 includes, for example, an outer cover fixing portion 9 accommodated between the inner housing 7 and the rear cover 8.
- the outer cover C2 of the optical cable C is fixed to the outer cover fixing portion 9.
- the rear cover 8 is rotatable with respect to the inner housing 7 via, for example, the shaft portion 8b.
- the shaft portion 8b is located at the front end portion of the rear cover 8 and extends in the width direction D3.
- the optical fiber C1 of the optical cable C extends from the outer cover fixing portion 9 to the inside of the mechanical splice 5 through the internal space 7b of the inner housing 7.
- the optical fiber C1 is bent in either the height direction D2 or the width direction D3 in the internal space 7b of the inner housing 7.
- the shape of the internal space 7b seen along the height direction D2 and the shape of the internal space 7b seen along the width direction D3 are, for example, arcuate.
- the inner housing 7 has a connection portion accommodating portion 7c for accommodating the optical fiber connection portion 3 and a guide portion 7d for guiding the optical fiber C1 extending from the optical cable C.
- the inner housing 7 is made of, for example, integrally molded with a resin and has no seams.
- a spring 4, a mechanical splice 5, and a ferrule 6 are accommodated in the connection portion accommodating portion 7c.
- the ferrule 6 is provided with a removable ferrule cap 11 that seals the ferrule 6 from the opposite side of the mechanical splice 5.
- the guide portion 7d has a curved surface 7f facing the bent optical fiber C1.
- the curved surface 7f defines the internal space 7b of the inner housing 7 described above.
- FIG. 2 is a cross-sectional view when the optical connector 1 is cut by a plane extending in the longitudinal direction D1 and the height direction D2.
- FIG. 3 is a cross-sectional view when the optical connector 1 is cut by a plane extending in the longitudinal direction D1 and the width direction D3.
- the mechanical splice 5 is housed in the outer housing 10.
- a through hole 10b is formed in the outer housing 10.
- a wedge portion 21 of an optical connector connecting jig 20 that expands the optical fiber arrangement space 5b of the mechanical splice 5 is inserted into the through hole 10b.
- the outer housing 10 has, for example, two through holes 10b arranged along the longitudinal direction D1, and the wedge portion 21 is inserted into each through hole 10b.
- the outer housing 10 has, for example, two through holes 10b arranged along the longitudinal direction D1, and the wedge portion 21 is inserted into each through hole 10b.
- the optical connector connecting jig 20 will be described in detail later.
- the mechanical splice 5 has a pair of holding members 5c, a V groove 5d, and a clamp 5f.
- the pair of holding members 5c are arranged along the width direction D3.
- the V-groove 5d defines an optical fiber arrangement space 5b formed between the pair of holding members 5c.
- the clamp 5f is a spring member that urges the pair of holding members 5c in the direction in which the optical fiber arrangement space 5b closes.
- the internal space 7b extending from the V groove 5d to the outer cover fixing portion 9 is a bending region of the optical fiber C1.
- the inner housing 7 includes a partition wall 7g that separates the connection portion accommodating portion 7c and the guide portion 7d.
- the partition wall 7g has a cylindrical protrusion 7h protruding from the connection portion accommodating portion 7c.
- the protrusion 7h protrudes to the opposite side of the guide portion 7d.
- the internal space 7b which is a bending region of the optical fiber C1, is extended to the connection portion accommodating portion 7c side by the protrusion 7h.
- the mechanical splice 5 is arranged so as to be separated from the partition wall 7 g on the ferrule 6 side.
- a part of the spring 4 is arranged so as to surround the protrusion 7h.
- the spring 4 is interposed between the mechanical splice 5 and the partition wall 7g, and urges the mechanical splice 5 and the ferrule 6 connected to the mechanical splice 5 to the front side.
- the mechanical splice 5 is housed in the connection portion accommodating portion 7c of the inner housing 7 in a state of being movable along the longitudinal direction D1.
- the internal space 7b which is a bending space of the optical fiber C1, extends from the hole portion 7s formed inside the protrusion 7h to the guide portion 7d.
- the curved surface 7f of the guide portion 7d extends in a conical shape from the partition wall 7g.
- the shape of the curved surface 7f seen along the height direction D2 and the shape of the curved surface 7f seen along the width direction D3 are arcuate.
- FIG. 4 is a perspective view showing the outer housing 10 and the optical connector connecting jig 20.
- FIG. 5 is a cross-sectional view schematically showing an optical fiber connection portion 3 including a mechanical splice 5 and a ferrule 6 located inside the outer housing 10. As shown in FIGS. 4 and 5, the optical fiber arrangement space 5b is expanded in a state where the wedge portion 21 of the optical connector connecting jig 20 is inserted into the through hole 10b of the outer housing 10.
- the built-in fiber F is held inside the ferrule 6 and in the optical fiber arrangement space 5b of the mechanical splice 5. That is, the built-in fiber F is provided in advance inside the ferrule 6.
- the mechanical splice 5 connects the built-in fiber F and the optical fiber C1 to each other.
- the connection portion P between the optical fiber C1 and the built-in fiber F is located, for example, below the wedge portion 21 on the front side (ferrule 6 side).
- the wedge portion 21 of the optical connector connecting jig 20 is previously inserted into the mechanical splice 5. That is, the wedge portion 21 of the optical connector connecting jig 20 is in a state of preliminarily expanding the optical fiber arrangement space 5b until the optical connector 1 is conveyed to the site of the connection work.
- the optical fiber C1 from the optical cable C is inserted into the optical fiber arrangement space 5b, the optical fiber C1 is connected to the built-in fiber F, and then the optical connector connection jig 20 is removed. Then, the optical fiber arrangement space 5b is closed. Then, the optical fiber C1 that has entered the V-groove 5d is held in the mechanical splice 5 together with the built-in fiber F.
- FIG. 8 is a perspective view showing the optical connector connecting jig 20.
- the optical connector connecting jig 20 engages with the base 22, the operation unit 23 operated when the optical connector connecting jig 20 is pulled out, and the optical connector 1. It includes a pair of first engaging portions 24 and a pair of second engaging portions 25.
- the wedge portion 21 and the base 22 are made of, for example, a transparent resin.
- the entire optical connector connecting jig 20 may be made of transparent resin.
- the base 22 is a plate-shaped portion extending along the longitudinal direction D1 in which the optical fiber C1 and the built-in fiber F extend.
- the base 22 has a plate shape having a width in the width direction D3 and a thickness in the height direction D2.
- FIG. 9 is a front view of the optical connector connecting jig 20 as viewed from the front side.
- the operation unit 23 is located on the front side (the end side of the optical connector 1 in the longitudinal direction D1).
- the operation unit 23 is provided on both sides of the base 22 in the width direction D3.
- the operation unit 23 protrudes from the optical connector 1 in the width direction D3.
- the operation unit 23 has a central portion 26 located at the center of the optical connector connecting jig 20 in the width direction D3, and both end portions 27 located at both ends of the central portion 26 in the width direction D3.
- the central portion 26 is provided on the extension of the base 22 in the longitudinal direction D1. That is, the central portion 26 corresponds to a portion protruding forward from the base 22.
- the central portion 26 has, for example, a flat surface 26b that is directed upward and a pair of convex portions 26c that project downward and are aligned along the width direction D3.
- a concave portion 26d recessed upward in an arc shape is formed between the pair of convex portions 26c.
- Both ends 27 have through holes 27b penetrating in the height direction D2.
- the through hole 27b makes the operation portion 23 lighter and makes it easier to bend both ends 27 upward with a finger or the like.
- the both end portions 27 have an inclined surface 27c that inclines diagonally upward from the central portion 26 toward both ends in the width direction D3, and a top surface 27d located at both ends of each inclined surface 27c in the width direction D3.
- the inclined surface 27c is, for example, a curved surface that gradually increases toward both ends in the width direction D3.
- the top surface 27d is, for example, a flat surface.
- the height H at both ends 27 of the operation unit 23 in the width direction D3 with respect to the base 22 is higher than the height at the central portion 26 of the operation unit 23 with respect to the base 22.
- the height of the central portion 26 is, for example, the same as the height of the upper surface of the base 22. Since both end portions 27 are higher than the central portion 26 with respect to the upper surface of the base 22, it is easy to bend each end portion 27 upward with respect to the central portion 26.
- the thickness of both ends 27, that is, the length in the height direction D2 becomes thicker toward both ends in the width direction D3, and at this point as well, the ends 27 are easily bent upward.
- the first engaging portion 24 is located on one side (for example, the rear side) of the longitudinal direction D1 of the base 22. As shown in FIG. 4, the first engaging portion 24 engages with the side portion 7t of the inner housing 7 facing outward in the width direction D3.
- the side portion 7t includes a flat surface 7v and a convex portion 7w protruding from the flat surface 7v in the width direction D3, and the first engaging portion 24 engages with the lower surface of the convex portion 7w.
- FIG. 10 is a rear view of the optical connector connecting jig 20 as viewed from the rear.
- the pair of first engaging portions 24 are provided so as to line up along the width direction D3.
- the optical connector connecting jig 20 includes a connecting portion 28 that connects a pair of first engaging portions 24 to each other.
- the connecting portion 28 has a convex portion 28b projecting upward behind the base 22, a protruding portion 28c projecting rearward in a region including the center of the width direction D3 of the convex portion 28b, and a hole portion 28d recessed in the convex portion 28b.
- the upper surface of the convex portion 28b is, for example, a flat surface, and the protruding portion 28c extends diagonally downward from the convex portion 28b.
- the hole 28d has a circular shape.
- the first engaging portion 24 is provided at both ends of the connecting portion 28 in the width direction D3.
- the first engaging portion 24 becomes smaller toward the bottom, and a convex portion 24f is formed at the lower end of the first engaging portion 24.
- the first engaging portion 24 is, for example, from a root portion 24b located on both ends in the width direction D3 of the connecting portion 28, a first plate-shaped portion 24c extending downward from the root portion 24b, and a first plate-shaped portion 24c. It is provided with a second plate-shaped portion 24d extending downward.
- the width of the second plate-shaped portion 24d in the longitudinal direction D1 becomes narrower toward the bottom.
- a convex portion 24f protruding inward in the width direction D3 is formed inside the second plate-shaped portion 24d in the width direction D3.
- the first engaging portion 24 engages with the side portion 7t of the inner housing 7 by abutting the upper surface of the convex portion 24f on the lower surface of the convex portion 7w of the inner housing 7.
- the surface of the convex portion 24f has a curved surface shape, and the convex portion 24f extends in the longitudinal direction D1. Since the surface of the convex portion 24f is curved, the first engaging portion 24 can be pulled out from the optical connector 1 with a relatively weak force.
- the second engaging portion 25 is located on the other side (for example, the front side) of the base 22 in the longitudinal direction D1. As shown in FIG. 4, the second engaging portion 25 engages with the outer housing 10.
- the outer housing 10 has a side portion 10d that faces outward in the width direction D3.
- the side portion 10d includes a pair of convex portions 10c arranged along the height direction D2, a concave portion 10f formed between the pair of convex portions 10c, and an opening 10g that exposes the inner housing 7 on the rear side of the concave portion 10f.
- the second engaging portion 25 engages with the lower surface of the upper convex portion 10c of the pair of convex portions 10c directed outward in the width direction D3 of the outer housing 10.
- a pair of second engaging portions 25 are provided so as to be arranged along the width direction D3.
- the second engaging portion 25 is provided, for example, on both ends of the operating portion 23 in the width direction D3.
- the second engaging portion 25 projects downward from the lower surface 23b of the operating portion 23 located on both ends of the convex portion 26c of the central portion 26 in the operating portion 23 in the width direction D3.
- the second engaging portion 25 is provided on the lower surface 23b at a position near both ends in the width direction D3, and the operating portion 23 projects from the second engaging portion 25 toward both ends in the width direction D3.
- the length of the second engaging portion 25 in the height direction D2 is shorter than the length of the first engaging portion 24 in the height direction D2.
- the second engaging portion 25 is provided on both ends of the width direction D3 with respect to the first engaging portion 24.
- the second engaging portion 25 extends downward from the operating portion 23 in a straight line, for example, and a convex portion 25c is formed at the lower end of the second engaging portion 25.
- the second engaging portion 25 includes, for example, a plate-shaped portion 25b extending downward from the lower surface 23b of the operating portion 23, and a convex portion 25c protruding inward in the width direction D3 at the lower end of the plate-shaped portion 25b.
- the second engaging portion 25 engages with the side portion 10d of the outer housing 10 by abutting the upper surface of the convex portion 25c on the lower surface of the convex portion 10c of the outer housing 10.
- the surface of the convex portion 25c has a curved surface shape, and the convex portion 25c extends in the longitudinal direction D1. Since the surface of the convex portion 25c is curved, the second engaging portion 25 can be pulled out from the optical connector 1 with a relatively weak force.
- the optical connector connecting jig 20 includes a pair of wedge portions 21 arranged along the longitudinal direction D1.
- the wedge portion 21 located on the first engaging portion 24 side expands the optical fiber arrangement space 5b through which the coating C3 of the optical fiber C1 passes.
- the wedge portion 21 located on the second engaging portion 25 side of the pair of wedge portions 21 expands the optical fiber arrangement space 5b in the connection portion P in which the optical fiber C1 is connected to the built-in fiber F.
- the optical connector connection jig 20 includes a convex lens 29 protruding from the base 22 to the opposite side of the wedge portion 21.
- the convex lens 29 is located above the wedge portion 21 that expands the optical fiber arrangement space 5b of the connection portion P.
- the wedge portion 21 and the convex lens 29 are made of a transparent resin. Therefore, when the light is leaking from the connection portion P, the light reaches the convex lens 29 through the wedge portion 21, and the light emission from the convex lens 29 is visually confirmed to confirm the leakage of the light from the connection portion P. can do.
- the optical connector connecting jig 20 has a first engaging portion 24 provided on both sides of the width direction D3 of the base 22 on one side of the longitudinal direction D1 of the base 22 and the other side of the longitudinal direction D1 of the base 22.
- a second engaging portion 25 provided on each of both sides of the base 22 in the width direction D3 is provided. Therefore, one side and the other side of the base 22 in the longitudinal direction D1 and one side and the other side of the width direction D3 of the base 22 are engaged with the optical connector 1. As a result, it is possible to prevent the optical connector connecting jig 20 from falling off from the optical connector 1.
- the optical connector connecting jig 20 includes an operation unit 23 projecting from both sides of the optical connector 1 in the width direction D3. Therefore, the optical connector connecting jig 20 can be removed by one action by picking the operation portions 23 protruding from both sides in the width direction D3 and pulling up the optical connector connecting jig 20 from the optical connector 1. .. Therefore, the operability of the operation of removing the optical connector connecting jig 20 can be improved.
- Each of the pair of first engaging portions 24 may be engaged with the inner housing 7 accommodating the mechanical splice 5.
- Each of the pair of second engaging portions 25 may engage with the outer housing 10 that houses the inner housing 7. In this case, the portion of the optical connector 1 with which the first engaging portion 24 is engaged can be made different from the portion with which the second engaging portion 25 is engaged.
- the height H at both ends 27 of the width direction D3 of the operation unit 23 with respect to the base 22 may be higher than the height at the central portion 26 of the width direction D3 of the operation unit 23 with respect to the base 22.
- the height H of the pair of both end portions 27 of the operation portion 23 is higher than the height of the central portion 26, the pair of both end portions 27 can be picked up to make it easier to pull up the operation portion 23. Therefore, the operability of pulling out the optical connector connecting jig 20 can be further improved.
- the position of the operation unit 23 in the longitudinal direction D1 may coincide with the end portion on the connection portion P side where the optical fiber C1 and the built-in fiber F are connected to each other.
- the operation unit 23 is provided at a position closer to the connection unit P. Therefore, when the optical connector connection jig 20 is pulled up from the optical connector 1 by the operation unit 23, the optical fiber C1 and the built-in fiber F in the operation unit 23 can be immediately connected. That is, when the operation unit 23 is pulled up, the wedge portion 21 on the connection portion P side (front side) comes out before the wedge portion 21 on the rear side, so that the connection portion P can be fixed first. Therefore, the glass fibers of the optical fiber C1 and the built-in fiber F can be fixed to each other in advance.
- At least a part of the base 22 and the wedge portion 21 may be made of a transparent resin.
- the optical connector 1 can be visually recognized via the base 22 and the wedge portion 21, and the connection state of the optical fiber C1 and the built-in fiber F can be confirmed by the leaked light from the connection portion P.
- the optical connector connection jig 20 may include a convex lens 29 protruding from the base 22 to the opposite side of the wedge portion 21. In this case, since the leaked light from the connection portion P of the optical fiber C1 and the built-in fiber F can be magnified by the convex lens 29, the connection state can be confirmed more easily.
- the optical connector 1 includes an optical connector connecting jig 20 and a mechanical splice 5, and a wedge portion 21 of the optical connector connecting jig 20 may be inserted.
- the optical connector connecting jig 20 is attached to the optical connector 1. Therefore, it is not necessary to attach the optical connector connecting jig 20 at the site of the connection work. Therefore, the connection work of the optical fiber C1 of the optical cable C to the optical connector 1 can be performed more easily.
- optical connector connection jig and the optical connector according to the present disclosure has been described above.
- the present invention is not limited to the above-described embodiment. That is, it is easily understood by those skilled in the art that the present invention can be modified and modified in various ways within the scope of the claims.
- the shape, size, number, material, and arrangement of each part of the optical connector connecting jig and the optical connector can be appropriately changed within the scope of the above gist.
- the first engaging portion 24 engages with the lower surface of the convex portion 7w of the inner housing 7, and the second engaging portion 25 is directed to the outside of the outer housing 10 in the width direction D3.
- An example of engaging with the lower surface of the upper convex portion 10c among the convex portions 10c has been described.
- the first engaging portion may be engaged so as to embrace the entire inner housing 7, and the second engaging portion may be engaged so as to embrace the entire outer housing 10.
- the first engaging portion and the second engaging portion may be engaged so as to hold the entire optical connector.
- the target portion with which the first engaging portion engages and the target portion with which the second engaging portion engages are not particularly limited.
- Concave part 10g Opening 11 ... Ferrule cap 20 ... Optical fiber connection jig 21 ... Rabbit part 22 ... Base 23 ... Operation part 23b ... Bottom surface 24 ... First engaging part 24b ... Root portion 24c ... First plate-shaped portion 24d ... Second plate-shaped portion 24f ... Convex portion 25 ... Second engaging portion 25b ... Plate-shaped portion 25c ... Convex portion 26 ... Central portion 26b ... Flat surface 26c ... Convex portion 26d ... Recessed portion 27 ... Both ends 27b ... Through hole 27c ... Inclined surface 27d ... Top surface 28 ... Connection portion 28b ... Convex portion 28c ... Protruding portion 28d ...
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
本出願は、2020年9月4日の日本出願第2020-148895号に基づく優先権を主張し、前記日本出願に記載された全ての記載内容を援用するものである。
最初に本開示の実施形態の内容を列記して説明する。一実施形態に係る光コネクタ接続用治具は、光ファイバと内蔵ファイバとを互いに接続するメカニカルスプライスを備えた光コネクタに用いられる光ファイバ接続用治具である。光ファイバ接続用治具は、光ファイバ及び内蔵ファイバが延びる方向に延在しており、光コネクタを覆うように光コネクタに載せられる板状のベースと、ベースから突出しており、メカニカルスプライスに挿入されるクサビ部と、ベースの幅方向の両側のそれぞれに設けられており、光コネクタよりも幅方向に突出する操作部と、ベースの長手方向の一方側においてベースの幅方向の両側のそれぞれに設けられており、光コネクタに向かって突出する一対の第1係合部と、ベースの長手方向の他方側においてベースの幅方向の両側のそれぞれに設けられており、光コネクタに向かって突出する一対の第2係合部と、を備える。
実施形態に係る光コネクタ接続用治具及び光コネクタの具体例を以下で図面を参照しながら説明する。なお、本発明は、後述する各例に限定されるものではなく、請求の範囲に示され、請求の範囲と均等の範囲における全ての変更が含まれることが意図される。図面の説明において、同一又は相当する要素には同一の符号を付し、重複する説明を適宜省略する。図面は、理解の容易のため、一部を簡略化又は誇張して描いている場合があり、寸法比率等は図面に記載のものに限定されない。
3…光ファイバ接続部
4…バネ
5…メカニカルスプライス
5b…光ファイバ配置空間
5c…保持部材
5d…V溝
5f…クランプ
6…フェルール
7…インナーハウジング
7b…内部空間
7c…接続部収容部
7d…ガイド部
7f…曲面
7g…隔壁
7h…突起
7s…孔部
7t…側部
7v…平坦面
7w…凸部
8…リアカバー
8b…軸部
9…外被固定部
10…アウターハウジング
10b…貫通孔
10c…凸部
10d…側部
10f…凹部
10g…開口
11…フェルールキャップ
20…光コネクタ接続用治具
21…クサビ部
22…ベース
23…操作部
23b…下面
24…第1係合部
24b…根元部
24c…第1板状部
24d…第2板状部
24f…凸部
25…第2係合部
25b…板状部
25c…凸部
26…中央部
26b…平坦面
26c…凸部
26d…凹部
27…両端部
27b…貫通孔
27c…傾斜面
27d…頂面
28…接続部
28b…凸部
28c…突出部
28d…穴部
29…凸レンズ
C…光ケーブル
C1…光ファイバ
C2…外被
C3…被覆
D1…長手方向
D2…高さ方向
D3…幅方向
F…内蔵ファイバ
P…接続部
Claims (7)
- 光ファイバと内蔵ファイバとを互いに接続するメカニカルスプライスを備えた光コネクタに用いられる光ファイバ接続用治具であって、
前記光ファイバ及び前記内蔵ファイバが延びる方向に延在しており、前記光コネクタを覆うように前記光コネクタに載せられる板状のベースと、
前記ベースから突出しており、前記メカニカルスプライスに挿入されるクサビ部と、
前記ベースの幅方向の両側のそれぞれに設けられており、前記光コネクタよりも前記幅方向に突出する操作部と、
前記ベースの長手方向の一方側において前記ベースの幅方向の両側のそれぞれに設けられており、前記光コネクタに向かって突出する一対の第1係合部と、
前記ベースの長手方向の他方側において前記ベースの幅方向の両側のそれぞれに設けられており、前記光コネクタに向かって突出する一対の第2係合部と、
を備える光ファイバ接続用治具。 - 前記一対の第1係合部のそれぞれは、前記メカニカルスプライスを収容するインナーハウジングに係合し、
前記一対の第2係合部のそれぞれは、前記インナーハウジングを収容するアウターハウジングに係合する、
請求項1に記載の光ファイバ接続用治具。 - 前記ベースに対する前記操作部の前記幅方向の両端部における高さは、前記ベースに対する前記操作部の前記幅方向の中央部における高さよりも高い、
請求項1または請求項2に記載の光ファイバ接続用治具。 - 前記操作部は、前記ベースにおける前記光ファイバ及び前記内蔵ファイバが互いに接続する接続部に近い部分に位置している、
請求項1から請求項3のいずれか一項に記載の光ファイバ接続用治具。 - 前記ベース及び前記クサビ部の少なくとも一部が透明樹脂によって構成されている、
請求項1から請求項4のいずれか一項に記載の光ファイバ接続用治具。 - 前記ベースから前記クサビ部の反対側に突出する凸レンズを備える、
請求項5に記載の光ファイバ接続用治具。 - 請求項1から請求項6のいずれか一項に記載の光ファイバ接続用治具と前記メカニカルスプライスとを備え、
前記光ファイバ接続用治具のクサビ部が前記メカニカルスプライスに挿入されている、
光コネクタ。
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JP2022546308A JPWO2022050224A1 (ja) | 2020-09-04 | 2021-08-30 | |
GB2303145.3A GB2613110A (en) | 2020-09-04 | 2021-08-30 | Optical fiber connecting jig and optical connector |
US18/020,171 US20230314729A1 (en) | 2020-09-04 | 2021-08-30 | Optical fiber connecting jig and optical connector |
CN202180056090.4A CN116075757A (zh) | 2020-09-04 | 2021-08-30 | 光纤连接用夹具以及光连接器 |
BR112023002470A BR112023002470A2 (pt) | 2020-09-04 | 2021-08-30 | Gabarito de conexão de fibra óptica e conector óptico |
KR1020237009634A KR20230060508A (ko) | 2020-09-04 | 2021-08-30 | 광 파이버 접속용 지그 및 광 커넥터 |
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JP (1) | JPWO2022050224A1 (ja) |
KR (1) | KR20230060508A (ja) |
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BR (1) | BR112023002470A2 (ja) |
GB (1) | GB2613110A (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP4398014A1 (en) * | 2023-01-05 | 2024-07-10 | Corning Research & Development Corporation | Fiber optic connector with actuation element and method of installing the same |
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US20200264381A1 (en) * | 2019-02-18 | 2020-08-20 | Senko Advanced Components, Inc | Mechanical splice assembly for splicing opposing optical fibers within a fiber optic connector and method of performing the same |
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JP4361465B2 (ja) | 2004-11-15 | 2009-11-11 | 株式会社フジクラ | 光コネクタ用工具、工具付き光コネクタ |
JP4537935B2 (ja) | 2005-10-31 | 2010-09-08 | 住友電気工業株式会社 | 光ファイバ接続用治具 |
EP2312353B1 (en) | 2008-08-04 | 2019-03-13 | Sumitomo Electric Industries, Ltd. | Jig for optical connector |
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2021
- 2021-08-30 US US18/020,171 patent/US20230314729A1/en active Pending
- 2021-08-30 WO PCT/JP2021/031752 patent/WO2022050224A1/ja active Application Filing
- 2021-08-30 JP JP2022546308A patent/JPWO2022050224A1/ja active Pending
- 2021-08-30 GB GB2303145.3A patent/GB2613110A/en active Pending
- 2021-08-30 KR KR1020237009634A patent/KR20230060508A/ko unknown
- 2021-08-30 CN CN202180056090.4A patent/CN116075757A/zh active Pending
- 2021-08-30 BR BR112023002470A patent/BR112023002470A2/pt not_active Application Discontinuation
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Patent Citations (4)
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JP2011027760A (ja) * | 2009-07-21 | 2011-02-10 | Three M Innovative Properties Co | 圧接カバーを備えた光ファイバ用コネクタ |
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EP4398014A1 (en) * | 2023-01-05 | 2024-07-10 | Corning Research & Development Corporation | Fiber optic connector with actuation element and method of installing the same |
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CN116075757A (zh) | 2023-05-05 |
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TW202227862A (zh) | 2022-07-16 |
BR112023002470A2 (pt) | 2023-03-28 |
GB202303145D0 (en) | 2023-04-19 |
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US20230314729A1 (en) | 2023-10-05 |
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