WO2019087584A1 - Élément de maintien et connecteur optique - Google Patents

Élément de maintien et connecteur optique Download PDF

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Publication number
WO2019087584A1
WO2019087584A1 PCT/JP2018/034098 JP2018034098W WO2019087584A1 WO 2019087584 A1 WO2019087584 A1 WO 2019087584A1 JP 2018034098 W JP2018034098 W JP 2018034098W WO 2019087584 A1 WO2019087584 A1 WO 2019087584A1
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WO
WIPO (PCT)
Prior art keywords
optical fiber
gripping member
optical
slit
fiber
Prior art date
Application number
PCT/JP2018/034098
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English (en)
Japanese (ja)
Inventor
山口　敬
勝則 寺本
Original Assignee
株式会社フジクラ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社フジクラ filed Critical 株式会社フジクラ
Priority to CN201880069072.8A priority Critical patent/CN111263909A/zh
Publication of WO2019087584A1 publication Critical patent/WO2019087584A1/fr

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    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables

Definitions

  • the present invention relates to a gripping member and an optical connector.
  • a field assembly type optical connector is known as a device for connecting optical fibers by abutting the end faces of the optical fibers.
  • the field assembly type optical connector is an optical connector having a structure that can be easily assembled at the end of the optical cable at the optical fiber installation site.
  • a built-in fiber is attached in advance at the factory, and the end of the built-in fiber is disposed at the mechanical splice portion.
  • the end of the insertion fiber which is extracted from the optical cable is inserted into the mechanical splice portion, and the optical fibers are butt connected in the mechanical splice portion .
  • Patent Document 1 describes the structure of a gripping member used in a field assembly type optical connector.
  • gripping protrusions are formed on the mutually facing surfaces of the pair of side wall portions, and the gripping protrusions are bitten into the sheath of the optical cable to make the optical cable between the pair of side wall portions. Holding fixed.
  • optical fiber of the optical cable gripped by the gripping member will bend when it strikes the built-in fiber of the mechanical splice. For this reason, the optical connector needs to have an internal structure that allows deflection of the optical fiber.
  • An object of the present invention is to provide a structure in which it is easy to secure a space for allowing the deflection of an optical fiber.
  • the main invention for achieving the above object is a gripping member comprising: a gripping portion for gripping an optical cable having an optical fiber; and an insertion portion for inserting the optical fiber out of the optical cable gripped by the gripping portion
  • the insertion portion has a pair of side wall portions, and a slit is formed by the opposed inner wall surfaces of the pair of side wall portions, and the slit is formed on the outer surface of the holding member having a rectangular cross section. It is a holding member characterized by being inclined and formed.
  • FIG. 1A is a perspective view of the optical connector 100 of the present embodiment.
  • FIG. 1B is an exploded perspective view of the optical connector 100 of the present embodiment.
  • 2A and 2B are explanatory diagrams of the internal structure of the optical connector 100.
  • FIG. FIG. 6 is a perspective view of a gripping member 30 in a state in which the optical cable 3 is gripped. It is AA sectional drawing of FIG. 2B.
  • FIG. 5A is a perspective view of the gripping member 30 of the second embodiment.
  • FIG. 5B is a cross-sectional view of the internal structure of the optical connector 100 according to the second embodiment. It is sectional drawing of the internal structure of the optical connector 100 of 3rd Embodiment.
  • FIG. 7A is a perspective view of the optical connector 100 according to the fourth embodiment.
  • FIG. 7B is a cross-sectional view of the inside of the rear housing 15 of the optical connector 100 according to the fourth embodiment. It is sectional drawing of the internal structure of the optical connector 100 of 5th Embodiment.
  • a holding member comprising: a holding portion holding an optical cable having an optical fiber; and an insertion portion for inserting the optical fiber which is extracted from the optical cable held by the holding portion, the insertion portion includes a pair of side walls And a slit is formed by the opposing inner wall surfaces of the pair of side wall portions, and the slit is formed to be inclined with respect to the outer surface of the holding member having a rectangular cross section.
  • the characteristic gripping member is clarified. According to such a gripping member, the optical fiber can be bent obliquely with respect to the outer surface of the gripping member. Therefore, it is easy to secure a space that allows the deflection of the optical fiber.
  • a guiding portion for guiding the optical fiber to the inclined portion of the slit is formed at the front end of the side wall portion.
  • the entire optical fiber in the insertion portion can be displaced along the slit.
  • the optical fiber can be moved toward the slit (the inner wall surface of the side wall portion) when the optical fiber strikes.
  • the slit is opened at a first surface of the holding member and a second surface opposite to the first surface. Thereby, the restriction of the deflection direction of the optical fiber can be eliminated.
  • the slit does not open in the side wall portion. Thereby, the twisting force can be prevented from being applied to the gripping member.
  • the slits are formed diagonally on the end face of the gripping member. This allows for a large deflection of the optical fiber.
  • a holding member for holding an optical cable having an optical fiber, a mechanical splice in which a built-in fiber abutted against the optical fiber is disposed, a housing portion for housing the mechanical splice, a fixing portion for fixing the holding member, And a housing having a fiber insertion portion for inserting the optical fiber between the accommodation portion and the fixing portion, the fiber insertion portion includes a slit inclined with respect to the outer surface of the holding member having a rectangular cross section.
  • An optical connector characterized by having it becomes clear. According to such an optical connector, the optical fiber can be bent at an angle with respect to the outer surface of the holding member. Therefore, it is easy to secure a space that allows the deflection of the optical fiber.
  • the holding member includes: a holding portion holding an optical cable having an optical fiber; and an insertion portion for inserting the optical fiber extracted from the optical cable held by the holding portion, wherein the insertion portion includes a pair And a slit is formed by the opposing inner wall surfaces of the pair of side walls, and the slit is formed in the major axis direction of the holding member having an elliptical shape in cross section.
  • the gripping member to be According to such a holding member, the optical fiber can be bent in the major axis direction of the cross-sectional elliptical shape. Therefore, it is easy to secure a space that allows the deflection of the optical fiber.
  • a holding member for holding an optical cable having an optical fiber, a mechanical splice in which a built-in fiber abutted against the optical fiber is disposed, a housing portion for housing the mechanical splice, a fixing portion for fixing the holding member, And a housing having a fiber insertion part for inserting the optical fiber between the accommodation part and the fixed part, wherein the fiber insertion part has a slit in the major axis direction of the holding member having an elliptical cross section.
  • the optical connector to be characterized becomes clear. According to such an optical connector, the optical fiber can be flexed in the major axis direction of the holding member having an elliptical cross section. Therefore, it is easy to secure a space that allows the deflection of the optical fiber.
  • FIG. 1A is a perspective view of the optical connector 100 of the present embodiment.
  • FIG. 1B is an exploded perspective view of the optical connector 100 of the present embodiment.
  • 2A and 2B are explanatory diagrams of the internal structure of the optical connector 100.
  • FIG. 1A is a perspective view of the optical connector 100 of the present embodiment.
  • FIG. 1B is an exploded perspective view of the optical connector 100 of the present embodiment.
  • 2A and 2B are explanatory diagrams of the internal structure of the optical connector 100.
  • FIG. 1A is a perspective view of the optical connector 100 of the present embodiment.
  • FIG. 1B is an exploded perspective view of the optical connector 100 of the present embodiment.
  • 2A and 2B are explanatory diagrams of the internal structure of the optical connector 100.
  • each direction is defined as shown in FIG. 1A. That is, the optical axis direction of the optical cable 3 or the optical fiber 4 is "front-to-back direction", the extension side of the optical cable 3 is “rear”, and the opposite side (end face side of the ferrule 11 of the optical connector 100) is "front”.
  • the insertion and removal direction of the insertion member 19 is the vertical direction, the side from which the insertion member 19 is pulled out from the optical connector main body 10 (see FIG. 1B) is “down”, and the opposite side is “up”.
  • a direction perpendicular to the front-rear direction and the vertical direction is referred to as “left-right direction”, the right side when viewed from the rear side as “right”, and the left side as “left”.
  • the optical connector 100 of the present embodiment is a field assembly type optical connector for connecting optical fibers by a mechanical splice method, and is an optical connector assembled at the end of an optical cable. Further, the optical connector 100 of the present embodiment is an LC type optical connector which is smaller than the SC type optical connector and capable of high density mounting.
  • the optical connector 100 includes an optical connector main body 10, a gripping member 30, and an optical cable 3.
  • the optical connector main body 10 has a ferrule 11, a mechanical splice portion 12, a housing 13 and an insertion member 19.
  • the ferrule 11 is a cylindrical ferrule used here for a single-core optical connector.
  • the mechanical splice portion 12 aligns (aligns) the built-in fiber (not shown) with the insertion fiber (here, the optical fiber 4 of the optical cable 3) by mechanical splice method, and a member (fixing the built-in fiber and insertion fiber) Optical fiber connecting device).
  • the front end of the built-in fiber is inserted into and fixed to the ferrule 11, and the end face is polished along with the ferrule 11.
  • the back end of the built-in fiber is disposed at the mechanical splice portion 12.
  • the mechanical splice 12 also has an opening 12A at the rear end.
  • the opening 12A is an insertion port of an insertion fiber (optical fiber 4).
  • the housing 13 includes a front housing 14 and a rear housing 15.
  • the front housing 14 is a portion that constitutes the front of the housing 13 and has a front accommodation portion 14A.
  • the front accommodation portion 14A is a portion for accommodating the front portion of the mechanical splice portion 12.
  • the rear housing 15 is a portion that constitutes the rear side of the housing 13.
  • the internal structure of the rear housing 15 is illustrated in FIGS. 2A and 2B.
  • the rear housing 15 has a rear accommodation portion 151, a fixing portion 152, and a fiber insertion portion 153.
  • the rear accommodation portion 151 is a portion for accommodating the rear side portion of the mechanical splice portion 12 and is provided on the front side of the rear housing 15.
  • the fixing portion 152 is a portion to which the gripping member 30 is fixed, and is disposed on the rear side of the rear housing 15. As shown in FIG. 1A, the fixing portion 152 has an inner wall surface 15A and a locking portion 15B.
  • the inner wall surface 15A is a surface on the inner side of the fixed portion 152, and is a surface that forms a storage space for storing the gripping member 30. For this reason, the inner wall surface 15A is formed in a rectangular shape corresponding to the outer shape (cross-sectionally rectangular shape) of the gripping member 30.
  • the above-mentioned accommodation space is opened at the rear end face of the fixed portion 152, and the holding member 30 is inserted from this opening.
  • the inner wall surface 15A is a sliding surface on which the gripping member 30 is slid in the front-rear direction.
  • the locking portions 15B are formed on the left and right side walls of the fixed portion 152.
  • the locking portion 15B is a portion for locking a claw portion 321 (described later) formed on the side wall of the gripping member 30.
  • the fiber insertion portion 153 is a portion through which the optical fiber 4 is inserted between the fixing portion 152 and the rear accommodation portion 151 (mechanical splice portion 12). As shown in FIGS. 2A and 2B, in the fiber insertion portion 153, the space is gradually narrowed toward the front side. This is to guide the optical fiber 4 to the opening 12 A of the mechanical splice portion 12. In addition, the space of the fiber insertion portion 153 is gradually expanded toward the rear side. This is to secure a space for allowing the deflection of the optical fiber 4 as shown in FIG. 2B. At the rear end of the fiber insertion portion 153 (the position of the AA cross section in FIG. 2B), the fiber insertion portion 153 has a shape (space) that conforms to the outer shape of the gripping member 30.
  • the insertion member 19 is a member that opens and closes the gap of the mechanical splice portion 12 of the optical connector main body 10.
  • An insertion hole (not shown) is formed on the lower surface of the optical connector main body 10, and a wedge 19A extending from the upper side of the insertion member 19 is inserted into the insertion hole.
  • the gripping member 30 is a member for gripping the optical cable 3.
  • the gripping member 30 is inserted into the fixing portion 152 of the optical connector main body 10 in a state in which the optical cable 3 is gripped.
  • the configuration of the gripping member 30 of the present embodiment will be described later.
  • the optical cable 3 assumes a drop cable and an indoor cable.
  • the optical cable 3 such as a drop cable or an indoor cable is an angular cross-sectional optical cable in which the optical fiber 4 and a pair of linear tensile members are collectively covered with a jacket.
  • the jacket is relatively hard, it is relatively easy to grip the optical cable 3 by causing the gripping projections (described later) of the gripping members 30 to bite into the jacket.
  • the present invention is not limited thereto.
  • it may be an optical cord (cord having a round cross section) in which a fibrous tensile member is disposed around an optical fiber and covered with an outer sheath.
  • the optical fiber 4 is taken out from the optical cable 3 (out). Then, the gripping member 30 grips the optical cable 3.
  • the coating on the tip of the optical fiber 4 is removed, and the optical fiber 4 is cut at a predetermined length.
  • the optical fiber 4 gripped by the gripping member 30 is fixed to the fixing portion 152 of the housing 13 (rear housing 15) (see FIG. 2B).
  • the optical fiber 4 held by the holding member 30 abuts against the built-in fiber (not shown) of the mechanical splice portion 12 and is bent inside the rear housing 15 (see FIG. 2B).
  • the gap of the mechanical splice portion 12 is removed by removing the insertion member 19 from the optical connector main body 10 (extracting the wedge 19A). Is closed and the optical fiber is fixed to the mechanical splice 12.
  • FIG. 3 is a perspective view of the gripping member 30 in a state in which the optical cable 3 is gripped.
  • the gripping member 30 includes a bottom wall 31, a pair of side walls 32, a lid 33, a gripping portion 34, an insertion portion 35, a slit 36, a regulating portion 37, and a gap 38. ing.
  • the bottom wall portion 31 is a portion that constitutes the lower portion (bottom portion) of the gripping member 30.
  • the pair of side wall portions 32 is provided upright on the left and right ends of the bottom wall portion 31.
  • the pair of side wall portions 32 have claw portions 321, respectively.
  • the claws 321 protrude from the outer surface of the pair of side walls 32.
  • the lid 33 is configured to be able to open and close with respect to the bottom wall portion 31 and the pair of side wall portions 32 of the gripping member 30.
  • the lid 33 is provided only on the gripping portion 34.
  • the gripping portion 34 is a portion for gripping the optical cable 3.
  • a gripping protrusion (not shown) is provided on the opposing surface (inner surface) of the pair of side wall portions 32.
  • the gripping protrusion is It bites into the sheath of the optical cable 3.
  • the optical cable 3 can be gripped.
  • the lid 33 is closed in a state where the optical cable 3 is accommodated between the pair of side wall portions 32, the optical cable 3 can be pinched (held) in the vertical direction by the lid 33 and the bottom wall portion 31. If a projection is provided on the inner surface of the lid 33 and the bottom wall portion 31 and bited into the sheath of the optical cable 3, the optical cable 3 can be gripped more reliably.
  • the insertion portion 35 is a portion through which the optical fiber 4 which is pulled out from the optical cable 3 is inserted, and is provided on the front side of the grip portion 34.
  • a slit 36 is formed between the pair of side wall portions 32.
  • FIG. 4 is a cross-sectional view taken along line AA of FIG. 2B. 4 is a front view of the cross section AA of FIG. 2B. The shape of the slit 36 of the gripping member 30 is shown in FIG. Further, FIG. 4 shows an example of the position (P1) of the optical fiber 4 before the abutment and the position (P2) of the optical fiber 4 after the abutment (the bent state). The positions P1 and P2 of the optical fiber 4 are positions in the cross section AA.
  • the slits 36 are formed by the opposing inner wall surfaces of the pair of side wall portions 32.
  • the inner wall surface is inclined with respect to the vertical direction and the lateral direction. That is, the slit 36 is formed to be inclined with respect to the outer surface of the holding member 30 having a rectangular cross section.
  • the opposing inner wall surfaces of the pair of side wall portions 32 constituting the slit 36 are also referred to as an inclined surface 36A (however, the left side wall portion 32 is referred to as an inclined surface 36A ').
  • the inclined surface 36A of the right side wall portion 32 is an inclined surface (lower surface normal to the left) inclined downward to the lower left, and the surface is positioned more to the left as the upper side. Thereby, as shown in FIG. 4, when the optical fiber 4 moves upward from the position of P1 (when bent upward), the inclined surface 36A of the right side wall portion 32 is guided to the left side (position of P2) Have a function to For this reason, the inclined surface 36A of the right sidewall 32 is disposed at least immediately above the initial position P1 of the optical fiber 4.
  • the inclined surface 36A 'of the left side wall portion 32 is opposed to the inclined surface 36A of the right side wall portion 32.
  • the inclined surface 36A 'of the left side wall portion 32 is an inclined surface facing the upper right (the inclined surface whose normal is directed upward to the right), and the surface is positioned on the upper side as it is to the left.
  • the inclined surface 36A 'of the left side wall portion 32 has a function of guiding upward when the optical fiber 4 is moved leftward. Therefore, the inclined surface 36A ′ of the left sidewall 32 is disposed at least on the left side of the initial position P1 of the optical fiber 4.
  • the slit 36 has a guiding portion 36B.
  • the guiding portion 36B is an inclined surface formed at the front end of the inclined surface 36A of the right sidewall 32.
  • the guiding portion 36B is an inclined surface facing left front and down, and the normal has not only the lower left component but also the front component.
  • the guiding portion 36B guides the optical fiber 4 displaced at the front end of the gripping member 30 to the inclined surface 36A (corresponding to the inclined portion). As a result, the entire optical fiber 4 in the insertion portion 35 can be displaced along the slit 36.
  • derivation part 36B may not be.
  • the restricting portion 37 is a portion that restricts the moving direction of the optical fiber 4.
  • the restricting portion 37 of the present embodiment is formed to restrict the movement of the optical fiber 4 in the right direction and the downward direction. Thus, since the rightward and downward movement of the optical fiber 4 is restricted, the optical fiber 4 is moved toward the inclined surface 36A (or the inclined surface 36A ') when the optical fiber 4 is butted. Become.
  • the gap 38 is formed between the opposite side surfaces of the pair of side wall portions 32.
  • the gap 38 is a portion for allowing inward displacement of the pair of side wall portions 32.
  • the opening of the slit 36 is open on the upper surface of the gripping member 30. This is because a twisting force is not easily applied to the gripping member 30 when the pair of side wall portions 32 receives a force from the inner wall surface 15A of the fixed portion 152 of the housing 13 (rear housing 15) and displaces inward. is there. If the opening of the slit 36 is open at the side wall portion 32, there is a possibility that a twisting force may be applied to the gripping member 30 when receiving a pressing force from the fixing portion 152 of the rear housing 15. Therefore, in the present embodiment, the opening of the slit 36 is provided on the upper surface of the gripping member 30.
  • the holding member 30 includes the holding portion 34 for holding the optical cable 3 having the optical fiber 4 and the insertion portion 35 for inserting the optical fiber 4 which is exposed from the optical cable 3.
  • the insertion portion 35 has a pair of side wall portions 32, and a slit 36 is formed by the inclined surfaces 36A and 36A '(inner wall surface) of the pair of side wall portions 32 opposed to each other. That is, the slit 36 is formed to be inclined with respect to the outer surface of the holding member 30 having a rectangular cross section.
  • a guiding portion 36B for guiding the optical fiber 4 to the inclined surface 36A (inclined portion) of the slit 36 is formed at the front end of the side wall portion 32.
  • the optical fiber 4 displaced at the front end of the gripping member 30 can be guided to the inclined surface 36A, and the entire optical fiber 4 in the insertion portion 35 can be displaced along the slit 36.
  • the gripping member 30 of the present embodiment has a regulating portion 37 which regulates the bending direction of the optical fiber 4.
  • the optical fiber 4 can be reliably guided to the inclined surface 36A.
  • FIG. 5A is a perspective view of the gripping member 30 of the second embodiment.
  • FIG. 5B is a cross-sectional view of the internal structure of the optical connector 100 according to the second embodiment. 5B is a view of the AA cross section of FIG. 2B as viewed from the front.
  • the opposing inner wall surfaces (inclined surfaces 36A and 36A ') of the pair of side wall portions 32 are continuous from the upper end to the lower end of the gripping member 30. It is formed. That is, in the gripping member 30 of the second embodiment, the slit 36 is opened at the upper surface and the lower surface of the gripping member 30.
  • the right inclined surface 36A is disposed at least immediately above and to the right of the initial position P1 of the optical fiber 4.
  • the left inclined surface 36A ' is disposed at least immediately below and to the left of the initial position P1 of the optical fiber 4.
  • the holding member 30 of 2nd Embodiment there is no control part like the above-mentioned embodiment or the bottom wall part (below the slit 36).
  • limiting of the bending direction at the time of the abutting of the optical fiber 4 can be eliminated.
  • the optical fiber 4 moves upward from the position P1 (when bent upward)
  • the optical fiber 4 is guided to the position P2 by the inclined surface 36A of the right side wall portion 32.
  • the optical fiber 4 moves downward from the position P1 (when bent downward)
  • the optical fiber 4 is guided to the position P3 by the inclined surface 36A 'of the left side wall portion 32. Be done.
  • the opening of the slit 36 is not provided in the side wall portion 32 (the slit 36 is not open in the side wall portion 32).
  • the gripping member 30 is fixed to the fixing portion 152, and when the side wall portion 32 receives a pressing force in the left-right direction from the inner wall surface 15A of the fixing portion 152, the gripping member 32 is hardly twisted and deformed.
  • the slits 36 are opened on the upper surface and the lower surface of the gripping member 30, the restriction of the bending direction of the optical fiber 4 can be eliminated.
  • FIG. 6 is a cross-sectional view of the internal structure of the optical connector 100 of the third embodiment. 6 is a front view of the cross section AA of FIG. 2B.
  • a slit 36 is formed on a diagonal line connecting the upper left corner and the lower right corner on the front end face of the holding member 30 having a rectangular cross section.
  • the position of the optical fiber 4 from the position P1 to the position P2 or the position You will be guided to the position of P3.
  • the slits 36 are formed on the diagonal of the gripping member 30, the distance between P1 and P2 and between P1 and P3 are better than in the second embodiment (FIG. 5B). It is possible to increase the distance of That is, in the third embodiment, the deflection can be further increased.
  • the slits 36 are formed diagonally on the front end surface of the gripping member 30, large deflection of the optical fiber 4 can be tolerated.
  • FIG. 7A is a perspective view of the optical connector 100 according to the fourth embodiment.
  • FIG. 7B is a cross-sectional view of the inside of the rear housing 15 of the optical connector 100 according to the fourth embodiment. 7B is a view of the rear end of the fiber insertion portion 153 of the rear housing 15 as viewed from the rear.
  • the gripping member 30 according to the third embodiment (the slit 36 is formed diagonally) is used.
  • the slit 16 is provided in the fiber insertion portion 153 of the rear housing 15.
  • the slits 16 are provided to correspond to the slits 36 of the gripping member 30 (on a diagonal line connecting the upper left and lower right).
  • the inclined surface 16A on the right side of the slit 16 is disposed at least immediately above and to the right of the initial position P1 of the optical fiber 4, and the inclined surface 16A 'on the left side of the slit 16 is at least It is disposed immediately below and to the left of the initial position P1.
  • the slit 16 may be provided on the side of the rear housing 15 (housing 13). Thereby, the optical fiber 4 after the abutment can be bent in the diagonal direction.
  • the slit 36 is formed also in the holding member 30.
  • the slit 16 may be provided only in the fiber insertion portion 153 of the rear housing 15 .
  • the optical fiber 4 can be bent in the diagonal direction, and a large deflection of the optical fiber 4 can be tolerated.
  • FIG. 8 is a cross-sectional view of the internal structure of the optical connector 100 according to the fifth embodiment.
  • FIG. 8 is a front view of the cross section AA of FIG. 2B.
  • the gripping member 30 of the fifth embodiment has an oval shape (cross section) that is long in the vertical direction. Further, the inner wall surface of the fixing portion 152 of the rear housing 15 also has an elliptical shape corresponding to the outer shape of the gripping member 30.
  • the gripping member 30 has a pair of side wall portions 32, and the slits 36 are formed by the opposing inner wall surfaces of the pair of side wall portions 32.
  • the inner wall surface of the side wall portion 32 constituting the slit 36 is parallel to the major axis direction (here, the vertical direction). That is, in the fifth embodiment, the slit 36 is formed in the major axis direction of the holding member 30 having an elliptical cross section.
  • the optical fiber 4 when the optical fiber 4 abuts, the optical fiber 4 is guided by the slit 36 in the major axis direction of the ellipse (deflection in the major axis direction). For example, the optical fiber 4 is guided from the position of P1 to the position of P2. Thereby, a large deflection of the optical fiber 4 can be tolerated.
  • the fiber insertion portion 153 of the housing 13 may be provided with a slit.
  • the slits may be formed in the major axis direction of the holding member 30 having an elliptical cross section.
  • the optical fiber 4 can be guided toward the end of the major axis of the ellipse when the optical fiber 4 is butted, deflection can be increased.
  • the slit 36 of the gripping member 30 may be omitted.
  • optical cables 4 optical fibers, 10
  • Optical connector body 11 ferrules, 12 mechanical splices, 12A openings, 13 housing, 14 front housing, 14A front housing portion, 15 rear housing, 15A inner wall surface, 15B locking part, 16 slits, 19 Interposition member, 19A wedge, 30 grip members, 31 bottom wall, 32 side walls, 32A claws, 33 lid, 34 grip portion, 35 insertion portion, 36 slits, 36A inclined surface, 36B induction part, 37 restrictions, 38 gaps, 151 rear housing portion, 152 fixing portion, 153 fiber insertion portion

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

Abstract

[Problème] Fournir une structure qui facilite l'allocation d'un espace pour permettre la flexion d'une fibre optique. [Solution] La présente invention concerne un élément de maintien pourvu de : une section de maintien pour maintenir un câble optique comprenant une fibre optique ; et une section d'insertion à travers laquelle la fibre optique exposée à partir du câble optique maintenu par la section de maintien est insérée, la section d'insertion comportant une paire de sections de paroi latérale, les faces de paroi interne opposées de la paire de sections de paroi latérale formant une fente, et la fente est formée à une inclinaison par rapport à la surface externe de l'élément de maintien ayant une forme de section transversale rectangulaire.
PCT/JP2018/034098 2017-11-02 2018-09-14 Élément de maintien et connecteur optique WO2019087584A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880069072.8A CN111263909A (zh) 2017-11-02 2018-09-14 把持部件以及光连接器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017212848A JP6483786B1 (ja) 2017-11-02 2017-11-02 把持部材
JP2017-212848 2017-11-02

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WO2019087584A1 true WO2019087584A1 (fr) 2019-05-09

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PCT/JP2018/034098 WO2019087584A1 (fr) 2017-11-02 2018-09-14 Élément de maintien et connecteur optique

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CN (1) CN111263909A (fr)
WO (1) WO2019087584A1 (fr)

Cited By (1)

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KR20230058433A (ko) 2020-09-04 2023-05-03 니혼 츠신 덴자이 리미티드 광 커넥터

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Publication number Priority date Publication date Assignee Title
JP7215959B2 (ja) 2019-04-26 2023-01-31 株式会社小松製作所 再生装置、分析支援システム及び再生方法
WO2022049792A1 (fr) * 2020-09-07 2022-03-10 株式会社フジクラ Connecteur optique et procédé de fabrication de connecteur optique
JP2024075804A (ja) * 2021-03-30 2024-06-05 株式会社フジクラ 光コネクタおよび光コネクタの製造方法

Citations (9)

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