WO2019087585A1 - Optical connector, holding member, and method for manufacturing optical connector - Google Patents
Optical connector, holding member, and method for manufacturing optical connector Download PDFInfo
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- WO2019087585A1 WO2019087585A1 PCT/JP2018/034099 JP2018034099W WO2019087585A1 WO 2019087585 A1 WO2019087585 A1 WO 2019087585A1 JP 2018034099 W JP2018034099 W JP 2018034099W WO 2019087585 A1 WO2019087585 A1 WO 2019087585A1
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- WIPO (PCT)
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- cap
- optical connector
- main body
- optical
- optical cable
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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
Definitions
- the present invention relates to an optical connector, a gripping member, and a method of manufacturing the 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 to an end of an optical cable (including a square optical cable and a round optical cord) at an 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 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 a fixing cap is screwed to a fixing part having a screw formed on an outer peripheral surface, and a fibrous tensile member of an optical cable (including an optical cord) is sandwiched between the fixing part and the fixing cap. It is described to hold down the fiber tensile strength of the optical cable.
- An object of the present invention is to provide a structure for retaining a fibrous tensile body without twisting.
- the main invention for achieving the above object is an optical connector comprising a holding member for holding an optical cable having an optical fiber, and a housing having a fixing portion for fixing the holding member, wherein the holding member is
- the apparatus has a main body having a pair of side walls, and a cap attached to the main body, and the side walls are formed with a slit for taking out the fibrous tension member of the optical cable from the inside to the outside. By sliding the cap relative to the main body, the cap can be attached to the main body with the fibrous tensile member sandwiched between the outer surface of the side wall and the inner surface of the cap.
- the fibrous tensile body can be retained without being twisted.
- FIG. 1A is a perspective view of the optical connector 100.
- FIG. FIG. 1B is an exploded perspective view of the optical connector 100.
- 2A is a perspective view of the gripping member 30, and
- FIG. 2B is an exploded perspective view of the gripping member 30.
- FIG. FIGS. 3A to 3C are explanatory views of the gripping member 30.
- FIG. 3A is a top view of the gripping member 30, and the fixing portion 152 of the rear housing 15 and the cap 50 are shown in cross section.
- FIG. 3B is an explanatory view of a state in which the optical code 6 is gripped.
- FIG. 3C is an explanatory view of a state in which the optical cable 3 is gripped.
- FIG. 7 is an explanatory view of an assembling method of the optical connector 100 in the case of using the round optical cable 6;
- FIG. 7 is an explanatory view of an assembling method of the optical connector 100 in the case of using the round optical cable 6;
- FIG. 7 is an explanatory view of an assembling method of the optical connector 100 in the case of using the round optical cable 6;
- FIG. 10 is an explanatory view of an assembling method of the optical connector 100 in the case of using the rectangular optical cable 3;
- FIG. 10 is an explanatory view of an assembling method of the optical connector 100 in the case of using the rectangular optical cable 3;
- It is an explanatory view of composition of cap 50 of a 2nd embodiment. It is explanatory drawing of the holding member 30 of 3rd Embodiment.
- An optical connector comprising: a holding member for holding an optical cable having an optical fiber; and a housing having a fixing portion for fixing the holding member, wherein the holding member is a main body having a pair of side walls, A cap attached to the main body, and the side wall is provided with a slit for bringing out the fibrous tensile member of the optical cable from the inside to the outside, and the cap is slid relative to the main body
- the optical connector is characterized in that the cap can be attached to the main body in a state where the fibrous tensile body is sandwiched between the outer surface of the side wall and the inner surface of the cap. According to such an optical connector, it is possible to hold the fibrous tensile member without twisting.
- the gripping member is fixed to the fixing portion in a state in which the fibrous tension member is sandwiched between the outer surface of the cap and the inner surface of the fixing portion by sliding the gripping member with respect to the fixing portion of the housing. It is desirable to be able to fix the Thereby, the gripping member can be pressed from the outside, and the gripping force of the fibrous tension member by the gripping member can be increased.
- a stepped portion is formed in the main body portion, and the fibrous tensile strength body sandwiched between the outer surface of the side wall portion and the inner surface of the cap is folded back between the stepped portion and the end surface of the cap.
- the fibrous tensile body is sandwiched between the outer surface of the cap and the inner surface of the fixing portion. This can further increase the gripping force of the fibrous tensile member.
- the folded fiber tensile strength body be sandwiched between the stepped portion and the end face of the cap. This can further increase the holding force of the fibrous tensile body.
- an anti-slip agent which increases the frictional force, be applied to the portion where the fibrous tensile member is sandwiched. This makes it possible to prevent the slip of the fibrous tensile member and to increase the retaining force.
- a cap fixing portion be provided on each of the main body portion and the cap. Thereby, the main body portion and the cap can be fixed in a state in which the fibrous tensile strength body is sandwiched between the outer surface of the side wall portion and the inner surface of the cap.
- the housing and the main body have engaging portions respectively. Thereby, the housing and the main body can be fixed.
- a projection that protrudes inward is formed on the inner surface of the pair of side walls.
- the protrusion can be bitten into the sheath of the optical cable to grip the optical cable.
- the gripping force of the rectangular optical cable can be increased.
- the plurality of caps are formed by integral molding. This can reduce the cost.
- a gripping member comprising a gripping portion for gripping an optical cable having an optical fiber, comprising: a main body having a pair of side wall portions; and a cap attached to the main body portion; A slit is formed for bringing out the fibrous tensile strength body from the inside to the outside, and by sliding the cap relative to the main body, the fiber is provided between the outer surface of the side wall and the inner surface of the cap.
- the gripping member is characterized in that the cap can be attached to the main body in a state in which the tension tensile body is sandwiched.
- the optical connector is assembled by inserting a holding member holding an optical cable into a main body of the optical connector, the holding member includes a main body having a pair of side walls, and the main body A cap attached to the housing, the optical cable being accommodated between the pair of side walls of the main body, and the pair of fibrous tensile members of the optical cable being inserted through the slits formed in the side wall. And the step of pulling the cap against the main body, thereby sandwiching the fibrous tensile body between the outer surface of the side wall and the inner surface of the cap. And a step of attaching the cap to the main body, and a method of manufacturing an optical connector is clarified.
- FIG. 1A is a perspective view of the optical connector 100.
- FIG. FIG. 1B is an exploded perspective view of the optical connector 100.
- the optical axis direction of the optical cable or optical fiber is "front-back direction”
- the extension side of the optical cable is "rear”
- the opposite side end face side of the ferrule 11 of the optical connector 100
- 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 (square optical cable 3 and round optical cable 6).
- the optical connector main body 10 has a ferrule 11, a mechanical splice portion 12, a housing 13, a spring 16 and an insertion member 19.
- the ferrule 11 is a cylindrical ferrule used here for a single-core optical connector.
- the mechanical splice section 12 aligns (aligns) the built-in fiber (not shown) with the insertion fiber (the optical fiber 4 of the rectangular optical cable 3 or the optical fiber 7 of the round optical cable 6) by mechanical splicing. It is a member (optical fiber connecting device) which fixes a fiber and an insertion fiber. 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.
- 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 rear housing 15 has a rear housing portion (not shown) and a fixing portion 152.
- the rear housing portion is a portion for housing the rear 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 inner wall surface 15A presses the gripping member 30 from the outside.
- the gripping force of the fibrous tension member 8 by the gripping member 30 is improved.
- the force of sandwiching the fibrous tensile body 8 between the main body 40 of the gripping member 30 and the cap 50 is improved.
- the side wall 42 (described later) of the gripping member 30 is pressed inward to improve the force of sandwiching the jacket of the rectangular optical cable 3 between the side walls 42.
- the inner wall surface 15A of the fixing portion 152 also has a function of sandwiching the fibrous tensile body 8 between the round optical cable 6 and the gripping member 30 (specifically, the cap 50).
- the locking portion 15B (corresponding to the engaging portion) is formed on the side wall of the fixing portion 152.
- the locking portion 15B locks a claw portion 441 (described later) formed on the side wall of the gripping member 30.
- the spring 16 is a member for biasing the retractably accommodated ferrule 11 to the front side.
- 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 in the optical connector main body 10, and a wedge (not shown) extending from the insertion member 19 is inserted into the insertion hole.
- the gripping member 30 is a member that grips the optical cable.
- 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 is gripped.
- the gripping member 30 of the present embodiment can grip the rectangular optical cable 3 and the round optical cable 6 as optical cables. The configuration of the gripping member 30 of the present embodiment will be described later.
- the rectangular optical cable 3 is, for example, a cable such as a drop cable or an indoor cable.
- the square optical cable 3 is an angular cross section optical cable in which the optical fiber 4 and a pair of linear tensile strength members are collectively covered with an outer jacket. Since the outer sheath of the rectangular optical cable 3 is relatively hard, it is relatively easy to grip the optical cable 3 by causing the projections 421 (described later) of the gripping members 30 to bite into the outer sheath.
- the rectangular optical cable 3 may be simply referred to as "optical cable 3".
- the round optical cable 6 is a round optical cable in which a fibrous tensile member 8 is disposed around the optical fiber 7 and covered with an outer jacket.
- the fibrous tensile body 8 is, for example, Kevlar (registered trademark).
- the round optical cable 6 may be referred to as "optical code 6".
- Such an optical cord 6 has a soft jacket, and therefore, like the optical cable 3, it is difficult to grip and hold the jacket. Therefore, the optical cord 6 is attracted to the optical connector 100 by holding the fibrous tensile member 8 by the holding member 30.
- FIG. 3A to 3C are explanatory views of the gripping member 30.
- FIG. 3A is a top view of the gripping member 30, and the fixing portion 152 of the rear housing 15 and the cap 50 are shown in cross section.
- FIG. 3B is an explanatory view of a state in which the optical code 6 is gripped.
- FIG. 3C is an explanatory view of a state in which the optical cable 3 is gripped.
- the horizontal direction and the vertical direction are defined.
- the ridge line direction of the protrusion 421 is “vertical direction”
- the side of the bottom wall 41 with respect to the protrusion 421 is “lower”
- the opposite side (open side) is upper.
- 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 gripping member 30 of the present embodiment includes a main body 40 and a cap 50.
- the main body portion 40 is a portion that constitutes the main body of the gripping member 30, and has a gripping portion 40A and an insertion portion 40B.
- the gripping portion 40A is a portion for gripping the optical cable 3 and the optical cord 6, and is provided on the rear side of the main body portion 40.
- the grip portion 40A has a bottom wall portion 41 and a pair of side wall portions 42.
- the bottom wall portion 41 is a portion that constitutes the lower portion (bottom portion) of the grip portion 40A.
- the pair of side wall portions 42 is erected from the left and right ends of the bottom wall portion 41.
- Each of the pair of side wall portions 42 includes a protrusion 421, a cap claw 422, a slit 423, a grip outer surface 424, and a step 425.
- the protruding portion 421 is a protruding portion (pronged eye) which protrudes inward from the facing surface (inner surface) of the side wall portion 42 and extends in the vertical direction.
- the protrusion 421 is formed in a substantially triangular cross section so that the protruding side (inner side) is sharp when viewed from above.
- the ridgeline of the protrusion 421 is parallel to the vertical direction.
- the protrusion 421 of one side wall 42 is disposed to face the protrusion 421 of the other side wall 42.
- the cap claw portion 422 (corresponding to a cap fixing portion) is a portion for fixing the cap 50. When the cap 50 is attached, the cap claw 422 engages with the engagement hole 53A of the cap 50.
- the slit 423 is a groove-like portion for discharging the fibrous tensile member 8 from the inside to the outside of the pair of side wall portions 42.
- the grip outer surface 424 is an outer surface of the pair of side walls 42.
- the grip outer surface 424 is a surface pressed from the inner surface of the cap 50 (cap inner surface 53B described later). By being pushed from the cap 50, the grip outer surface 424 deforms the pair of side wall portions 42 inward, and bites the left and right protrusions 421 into the sheath of the optical cable 3 and the optical cord 6. Thereby, the gripping force of each optical cable (in particular, the optical cable 3) is improved.
- the grip portion outer surface 424 is a portion for sandwiching the fibrous tensile body 8 with the cap 50. The position of the portion is the outer surface of the side wall portion 42 on the front side of the slit 423 in the grip portion outer surface 424 (see FIG. 3B).
- the stepped portion 425 is a portion for sandwiching the fibrous tensile body 8 with the front end surface 50 ⁇ / b> B of the cap 50 when gripping the optical cord 6.
- the stepped portion 425 is provided at the front end of the grip portion outer surface 424. Further, the stepped portion 425 is provided (boundary) between the grip portion 40A and the insertion portion 42B.
- the insertion part 40B is a site
- the insertion portion 40B has a bottom wall portion 43 and a pair of side wall portions 44.
- the bottom wall portion 43 is a portion continuous with the bottom wall portion 41 of the grip portion 40A, and constitutes a lower portion (bottom portion) of the insertion portion 40B.
- the pair of side wall portions 44 is provided upright on the left and right ends of the bottom wall portion 43. Further, claws 441 (corresponding to engaging portions) are provided on the pair of side wall portions 44.
- the claws 441 are provided on the outer surfaces of the pair of side walls 44 respectively.
- the cap 50 is a member that fits with the grip portion 40A of the main body portion 40 and covers the grip portion 40A.
- the cap 50 has a cylindrical portion 50A, a front end surface 50B, and a rear plate portion 50C.
- the cylindrical portion 50A is a cylindrical portion of the cap 50.
- the cylindrical portion 50A of the present embodiment is formed in a rectangular cylindrical shape, and includes an upper plate portion 51, a bottom plate portion 52, and a pair of side plate portions 53.
- the upper plate portion 51 is a plate-like portion that constitutes the upper portion of the cap 50.
- the bottom plate portion 52 is a plate-like portion that constitutes the lower portion (bottom portion) of the cap 50.
- the pair of side plate portions 53 is a plate-like portion that constitutes the left and right side portions of the cap 50.
- the pair of side plate portions 53 presses the pair of side wall portions 42 of the grip portion 40A from the outside. Further, the pair of side plate portions 53 receives a pressing force from the inner wall surface 15A of the fixing portion 152 of the optical connector main body 10 (rear housing 15).
- the pair of side plate portions 53 each have an engagement hole 53A (corresponding to a fixing portion for a cap) and a cap inner surface 53B.
- the engagement hole 53A engages with the cap claw 422 of the grip 40A of the main body 40.
- the cap 50 is fixed to the main body 40.
- the cap inner surface 53B is an opposing surface (inner surface) of the pair of side plate portions 53, and is a surface that presses the outer surface (gripping portion outer surface 424) of the pair of side wall portions 42 of the gripping portion 40A from the outside.
- the gripping force is improved by the cap inner surface 53B pressing the gripping portion outer surfaces 424 of the pair of side wall portions 42 of the gripping portion 40A.
- the pressing force from the fixing portion 152 of the housing 13 (rear side housing 15) of the optical connector main body 10 can be set small by improving the gripping force, the thickness of the housing 13 (rear side housing 15) The thickness can be reduced.
- the cap inner surface 53B presses the pair of sidewall portions 42 of the gripping portion 40A from the outside, and the pair of sidewall portions 42 It is deformed inward, and the left and right protrusions 421 are bitten into the sheath of the optical cable 3. Thereby, the gripping force of the optical cable 3 is improved.
- a portion of the cap inner surface 53B facing the side wall portion 42 (grip portion outer surface 424) on the front side of the slit 423 has a fibrous tension between the grip portion outer surface 424 of the main body 40 It becomes a part which inserts the body 8 (see FIG. 3B).
- the inner surface of the cylindrical portion 50A is formed in a shape that conforms to the outer shape of the grip portion 40A of the main body portion 40.
- the cap 50 can be slid (parallelly moved) with respect to the grip portion 40A of the main body portion 40.
- the cylindrical portion 50A is formed in a square cylindrical shape, when the cap 50 is slid, the cap 50 does not rotate with respect to the gripping portion 40A. Thereby, the twist of the fibrous tension member 8 can be prevented.
- the cap outer surface 53C is an outer surface (outer surface) of the pair of side plate portions 53 and is a surface that receives a pressing force from the inner wall surface 15A of the fixing portion 152 of the optical connector main body 10.
- the fiber tensile strength body 8 is sandwiched between the optical cord 6 and the optical connector main body 10 (the fixing portion 152 of the rear housing 15).
- the front end surface 50B is an end surface on the front side of the cylindrical portion 50A.
- the front end face 50B is a portion where the fibrous tensile body 8 is sandwiched between the front end face 50B and the step 425 of the main body 40.
- the rear plate portion 50C is a portion on the rear side of the cylindrical portion 50A, and an insertion hole 55 is provided to penetrate in the front-rear direction.
- the insertion hole 55 is a hole for inserting the optical cable 3 and the optical cord 6.
- the first fitting portion 61, the second fitting portion 62, and the butt portion are formed by the main body portion 40, the cap 50, and the housing 13 (rear housing 15).
- a folded back portion 63 is formed.
- the first fitting portion 61 is configured of a grip portion outer surface 424 of the main body portion 40 and a cap inner surface 53 B of the cap 50.
- the first fitting portion 61 presses (compresses) the grip portion outer surface 424 from the outside with the cap inner surface 53B.
- the pair of side wall portions 42 is deformed inward, and the left and right protrusions 421 bite into the sheath of the optical cable 3.
- the gripping force of the optical cable 3 is improved.
- the fibrous tensile body 8 is sandwiched between the grip portion outer surface 424 and the cap inner surface 53B.
- the dimensions A and X (see FIG. 3A) of the first fitting portion 61 differ depending on the type (outer shape) of the optical cable (square optical cable 3 and round optical cable 6). Further, in the case of the optical cord 6, even if the outer shape is the same, the dimensions A and X (see FIG. 3A) of the first fitting portion 61 differ according to the amount of the fibrous tension member 8.
- Dimension A is the length between the left and right cap inner surfaces 53 B of the cap 50.
- the dimension X is a length between the outer surfaces of the pair of side wall portions 42 (the left and right grip portion outer surfaces 424).
- the distance between the pair of side walls 42 (the grip 40A is substantially U-shaped in cross section by the bottom wall 41 and the pair of side walls 42) In particular, the upper end side may spread.
- the dimension X is increased, even if the dimension X and the dimension A have the same design value, the pair of side wall portions 42 can be deformed inward by attaching the cap 50.
- the dimension A needs to be slightly smaller than the dimension X in order for the cap 50 to deform the pair of side walls 42 inward.
- the appropriate dimensions A and X differ depending on the amount of the fibrous tensile body 8.
- the second fitting portion 62 is configured of a cap outer surface 53C and an inner surface (inner wall surface 15A) of the fixing portion 152 of the housing 13 (rear housing 15).
- the second fitting portion 62 is a portion for pressing the gripping member 30 from the outside by the fixing portion 152 of the housing 13 (the rear housing 15).
- the second fitting portion 62 improves the force of sandwiching the fibrous tensile body 8 of the second fitting portion 62. Further, the force for sandwiching the fibrous tensile member 8 of the first fitting portion 61 is improved. Further, the force for sandwiching the fibrous tensile member 8 of the second fitting portion 62 is improved.
- the second fitting portion 62 squeezes the side wall portion 42 of the gripping member 30 (main body portion 40) to the inside to improve the force of sandwiching the jacket between the side wall portions 42.
- the dimensions C and Z (see FIG. 3A) of the second fitting portion 62 differ depending on the type (outer shape) of the optical cable (square optical cable 3 or round optical cable 6).
- Dimension C is the length between the left and right cap outer surfaces 53 C of the cap 50.
- the half of the difference between the dimension C and the dimension A is the thickness of the side plate portion 53.
- the dimension Z is a length between the left and right inner wall surfaces 15A of the fixed portion 152.
- the dimension C may be enlarged (expanded). In this case, even if the dimension C and the dimension Z are the same design value, the holding member 152 can be pressed from the outside by the fixing portion 152.
- the dimension C does not change, when the gripping member 30 (cap 50) is inserted into the fixing portion 152, the dimension C is slightly smaller than the dimension Z in order to press the gripping member 30 from the outside by the fixing portion 152 It is necessary.
- the abutment portion 63 (folded back portion) is configured by the step portion 425 of the main body portion 40 and the front end surface 50 B of the cap 50.
- the butting portion 63 has a function of turning back the fibrous tensile body 8 between the step portion 425 of the main body portion 40 and the front end surface 50 B of the cap 50.
- the holding force of the fibrous tensile body 8 (the gripping force of the fibrous tensile body 8 by the first fitting portion 61 and the second fitting portion 62) is improved.
- the fibrous tensile strength body 8 may be sandwiched (or pressed) by the step 425 of the main body 40 and the front end face 50B of the cap 50.
- the holding force of the fibrous tensile member 8 is further improved.
- the appropriate dimensions B and Y differ according to the type of the optical code 6.
- Dimension B is the length between the front end surface 50B of the cap 50 and the engagement hole 53A.
- the dimension Y is a length between the step 425 of the grip 40A and the cap claw 422.
- the dimension Y may be slightly larger than the dimension B (the same amount may be sufficient).
- the fiber tensile strength body 8 is disposed (or sandwiched) between the step 425 of the main body 40 and the front end surface 50B of the cap 50. The dimensions B and Y will be different.
- the adaptability to the type of optical cable is enhanced. .
- the frictional force is increased or slippage occurs in the portion (the first fitting portion 61, the second fitting portion 62, the butting portion 63) for sandwiching the fibrous tensile body 8 Applying a stopper.
- the anti-slip agent for example, a mixture of a synthetic resin and an organic solvent can be used. After the anti-slip agent is applied by a spray or the like, the remaining resin acts as a non-slip by the exertion of the organic solvent. Thereby, the slip of the fibrous tensile member 8 can be prevented, and the holding force can be increased.
- FIG. 4A, FIG. 4B, and FIG. 4C are explanatory drawings of the assembling method of the optical connector 100 at the time of using the round optical cable 6 (optical code 6). Note that only FIG. 4C (c) is shown upside down.
- an assembly tool 70 is used when assembling the optical connector 100. First, the configuration of the assembly tool 70 will be briefly described.
- the assembly tool 70 is a tool used when assembling the optical connector 100.
- the assembly tool 70 of the present embodiment corresponds to both the optical cable 3 and the optical code 6.
- the assembly tool 70 has a front side member 80 and a rear side member 90.
- the front side member 80 and the rear side member 90 are connected to be relatively rotatable around a rotation axis (not shown).
- the front side member 80 has a function of holding the holding member 30 when processing an optical fiber (the optical fiber 4 extracted from the optical cable 3 and the optical fiber 7 extracted from the optical cord 6).
- the rear side member 90 has a function of holding the optical cable when the gripping member 30 is inserted into the optical connector main body 10 (specifically, the fixing portion 152). Both the optical cable 3 and the optical code 6 can be held.
- the rear side member 90 has a cable holding portion 91 and a fibrous tensile strength member holding portion 92.
- the cable holding portion 91 is a linear groove-shaped portion for inserting and holding an optical cable (the optical cable 3 and the optical cord 6).
- the fibrous tensile member holding portion 92 is a groove-like portion that holds the fibrous tensile member 8 extending from the gripping member 30 (between the main body 40 and the cap 50).
- the fibrous tensile strength member holding portions 92 are respectively provided on the left and right sides sandwiching the cable holding portion 91.
- the worker inserts the optical cord 6 into the insertion hole 55 of the cap 50 (FIG. 4A (a)).
- the optical code 6 is inserted into the cap 50 (FIG. 4A (b)).
- the worker removes the jacket on the tip end side (front side) of the optical cord 6 and picks up the optical fiber 7 and the fibrous tension member 8 (FIG. 4A (c)).
- the worker sets the optical cord 6 in the main body 40 of the gripping member 30 (FIG. 4A (d)).
- the distal end portion of the jacket of the optical cord 6 is accommodated between the pair of side walls 42 of the grip 40A of the main body 40, and fibers are formed from the inside of the side wall 42 to the outside of the side wall 42 via the slits 423.
- the tensile strength body 8 is released (FIG. 4A (e)).
- the inserted optical fiber 7 is inserted into the insertion portion 40B of the main body 40.
- the fibrous tensile body 8 is sandwiched between the grip outer surface 424 of the main body 40 and the cap inner surface 53B of the cap 50 (first fitting portion 61: see FIG. 3B).
- the fibrous tensile member 8 is sandwiched between the step 425 and the cap inner surface 53B (abutment portion 63: see FIG. 3B).
- the fibrous tensile strength body 8 is sandwiched between the grip outer surface 424 of the main body 40 and the cap inner surface 53 B of the cap 50 by sliding the cap 50 forward. Can be held to not twist.
- the worker folds back the fibrous tensile member 8 coming out between the main body 40 and the cap 50 (toward the cap outer surface 53C).
- the worker attaches the light cord 6 to the rear member 90 of the assembly tool 70 (FIG. 4B (a)).
- the optical cord 6 is disposed in the cable holding portion 91 of the rear side member 90, and the fibrous tensile body 8 is arranged in the fibrous tensile body holding portion 92 of the rear side member 90 (FIG. 4B (b)).
- the front side member 80 of the assembly tool 70 is rotated with respect to the rear side member 90, and is inclined downward.
- the worker rotates the front side member 80 upward (FIG. 4B (c)) and causes the front side member 80 to hold the gripping member 30.
- the optical fiber 7 out of the optical cord 6 comes out before the front end of the front member 80.
- the operator removes the coating on the end of the optical fiber 7 and cuts the end of the optical fiber 7.
- the worker rotates the front side member 80 downward to remove the front side member 80 from the gripping member 30.
- the gripping member 30 is inserted into the fixing portion 152 of the optical connector main body 10 (FIG. 4B (d)).
- the claw portion 441 of the gripping member 30 is caught on the locking portion 15B of the rear housing 15, and the gripping member 30 is fixed to the optical connector main body 10 (FIG. 4B (e)).
- the end of the optical fiber 7 is inserted into the opening 12A of the mechanical splice portion 12, and is butt-connected to the internal fiber of the ferrule 11.
- the second fitting portion 62 of the inner wall surface 15A of the fixing portion 152 of the housing 13 (the rear housing 15) and the cap outer surface 53C is formed, and the fibrous tension member 8 is the second fitting. It is sandwiched between the coupling portions 62 (between the inner wall surface 15A and the cap outer surface 53C) (see FIG. 3B).
- the worker removes the insertion member 19 from the optical connector main body 10 (FIG. 4B (f)).
- the wedge (not shown) of the insertion member 19 is pulled out, the gap of the mechanical splice portion 12 is closed, and the optical fiber 7 of the optical cord 6 and the built-in fiber (not shown) are fixed in a state where they abut.
- FIG. 5A and FIG. 5B are explanatory drawings of the assembling method of the optical connector 100 at the time of using the square-shaped optical cable 3 (optical cable 3). Note that only FIG. 5B (f) is shown upside down. Also in this assembly method, an assembly tool 70 is used.
- the worker removes the jacket of the tip of the optical cable 3 and opens the optical fiber 4 (FIG. 5A (a)). Then, the optical cable 3 is inserted into the insertion hole 55 of the cap 50 and inserted into the cap 50 (FIG. 5A (b)).
- the worker sets the optical cable 3 in the main body 40 (FIG. 5A (c)).
- the distal end portion of the jacket of the optical cable 3 is accommodated between the pair of side wall portions 42 of the grip portion 40A of the main body portion 40.
- the protrusions 421 of the pair of side wall portions 42 bite into the sheath of the optical cable 3 and the optical cable 3 is gripped.
- the distance between the pair of side wall portions 42 may increase (the dimension X in FIG. 3A may increase).
- the inserted optical fiber 4 is inserted into the insertion portion 40B.
- the worker attaches the cap 50 to the grip portion 40A of the main body 40 (FIG. 5A (d)).
- the engagement hole 53A of the cap 50 engages with the cap claw 422 of the grip 40A, and the cap 50 is fixed to the main body 40.
- the grip outer surface 424 of the main body 40 is pressed (pressed) from the outer side by the cap inner surface 53B of the cap 50, and the pair of side wall portions 42 is deformed inward.
- the projection 421 bites into the sheath of the optical cable 3 (the biting becomes large), and the gripping force is improved.
- the cap 50 when the distance between the pair of side wall portions 42 is increased when setting the optical cable 3 in the main body portion 40, when the cap 50 is slid, the protrusion 421 of the optical cable 3 in the outer cover growing. In addition, after attaching the cap 50, the cap outer surface 53C on either side may swell (the dimension C of FIG. 3A becomes large).
- the worker attaches the optical cable 3 to the rear member 90 of the assembly tool 70 (FIG. 5A (e)).
- the optical cable 3 is disposed in the cable holding portion 91 of the rear side member 90 (FIG. 5A (f)).
- the front side member 80 of the assembly tool 70 is rotated with respect to the rear side member 90, and is inclined downward.
- the operator rotates the front side member 80 of the assembly tool 70 upward to hold the gripping member 30 on the front side member 80 (FIG. 5B (a)).
- the optical fiber 4 out of the optical cable 3 comes out before the front end of the front side member 80.
- the operator removes the coating on the end of the optical fiber 4 and cuts the end of the optical fiber 4.
- the worker rotates the front side member 80 downward to remove the front side member 80 from the gripping member 30.
- the gripping member 30 is inserted into the fixing portion 152 of the optical connector main body 10 (FIG. 5B (b)).
- the claws 441 of the gripping member 30 are caught on the locking portions 15B of the rear housing 15, and the gripping member 30 is fixed to the optical connector main body 10 (FIG. 5B (c)).
- the end of the optical fiber 4 is inserted into the opening 12A of the mechanical splice portion 12, and is butt-connected to the internal fiber of the ferrule 11.
- the second fitting portion 62 of the inner wall surface 15A of the fixed portion 152 of the housing 13 (rear housing 15) and the cap outer surface 53C is formed, and the inner wall surface 15A forms the side plate portion 53 of the cap 50. Is pressed inward.
- the pair of side wall portions 42 of the grip portion 40A is further pressed inward.
- the gripping force of the optical cable 3 can be further improved.
- the left and right cap outer surfaces 53C of the cap 50 are expanded, the left and right side plate portions 53 of the cap 50 and the pair of side wall portions 42 of the grip portion 40A are inward by the inner wall surface 15A of the fixed portion 152. It is pressed.
- the cap inner surface 53B of the cap 50 presses the grip outer surface 424 of the main body 40 from the outside.
- the gripping force can be obtained. That is, even if the thickness of the fixing portion 152 of the rear housing 15 is thin and the pressing force of the gripping member 30 by the rear housing 15 is weak, the gripping force of the optical cable 3 by the gripping member 30 can be improved.
- the worker removes the insertion member 19 from the optical connector main body 10 (FIG. 5B (d)).
- the wedge (not shown) of the insertion member 19 is pulled out, the gap of the mechanical splice portion 12 is closed, and the optical fiber 7 of the optical cord 6 and the built-in fiber (not shown) are fixed in a state where they abut.
- the optical connector 100 includes the holding member 30 for holding the optical cord 6 (corresponding to an optical cable) having the optical fiber 7 and the rear housing 15 having the fixing portion 152 for fixing the holding member 30. (Housing 13) is provided.
- the gripping member 30 also has a main body 40 having a pair of side walls 42 and a cap 50 attached to the main body 40.
- the pair of side wall portions 42 is formed with a slit 423 for drawing out the fibrous tensile strength body 8 of the optical cord 6 from the inside to the outside. Then, as shown in FIG.
- the cap outer surface 53C (the outer surface of the cap 50 is slid by sliding the gripping member 30 forward with respect to the fixed portion 152 of the rear housing 15).
- the inner surface 15A (corresponding to the inner surface) of the fixing portion 152, the gripping member 30 is fixed to the fixing portion 152 in a state in which the fibrous tensile member 8 is sandwiched (see FIG. 3B). Thereby, the retention force of the fibrous tension member 8 can be increased.
- the stepped portion 425 is formed in the main body portion 40, and the grip outer surface 424 of the side wall portion 42 is formed between the stepped portion 425 and the front end surface 50B (corresponding to the end surface) of the cap 50.
- the cap inner surface 53B of the cap 50 is folded back, and the fibrous tensile body 8 is sandwiched between the cap outer surface 53C of the cap 50 and the inner wall surface 15A of the fixing portion 152. ing.
- the gripping force of the fibrous tensile member 8 can be further enhanced.
- the folded fiber-like tensile strength body 8 is sandwiched between the stepped portion 425 and the front end surface 50B of the cap 50. Thereby, the retention force of the fibrous tensile body 8 can be further enhanced.
- the anti-slip agent is applied to the portion (the first fitting portion 61, the second fitting portion 62, the abutment portion 63) for sandwiching the fibrous tensile member 8 to increase the frictional force. ing. Thereby, the slip of the fibrous tensile member 8 can be prevented, and the holding force can be increased.
- the main body 40 of the gripping member 30 has the cap claw 422 (corresponding to the cap fixing part), and the cap 50 engages with the cap claw 422 in the engagement hole 53A. (Corresponding to a fixing portion for a cap). Thereby, the main body 40 and the cap 50 can be fixed in a state where the fibrous tensile strength body 8 is sandwiched between the grip outer surface 424 of the side wall 42 and the cap inner surface 53B of the cap 50.
- the main body portion 40 has the claw portion 441 (corresponding to the engaging portion), and the rear housing 15 engages with the claw portion 441 (corresponding to the engaging portion) have. Thereby, the main body 40 and the rear housing 15 can be fixed.
- the protrusions 421 protruding inward are formed on the inner surfaces of the pair of side wall portions 42. Therefore, when the light cord 6 is accommodated between the pair of side wall portions 42, the projection 421 can be bitten into the jacket of the light cord 6 and can be generally fixed. In particular, in the case of the optical cable 3, the gripping force can be increased.
- FIG. 6 is an explanatory view of the configuration of the cap 50 of the second embodiment.
- caps 50 are prepared for the gripping member 30 (main body 40).
- the four caps 50 (501 to 504) are formed, for example, by resin integral molding and can be used separately.
- the shapes (dimensions A, B, and C described above) of the caps 50 are determined according to the type (outer shape) of the optical cable 3 and the optical cord 6, the size of the insertion hole 55, and the like.
- the cap 501 is adapted to the 3.1 ⁇ 2.0 mm square optical cable 3 and the cap 502 is adapted to the 2.0 ⁇ 1.6 mm square optical cable 3.
- the cap 503 is adapted to the round optical cable 6 (optical code 6) of 2 mm in diameter
- the cap 504 is adapted to the round optical cable 6 of 3 mm in diameter.
- the worker can select and use one corresponding to the optical cable (optical cable 3, optical cord 6) used for the optical connector 100.
- the adaptability to the type of optical cable can be enhanced, and the cost can be reduced.
- FIG. 7 is an explanatory view of the gripping member 30 of the third embodiment.
- the optical connector 100 of the present embodiment is a small LC type optical connector
- the cap 50 used for the gripping member 30 is very small in size. Therefore, the cap 50 may be lost.
- the main-body part 40 of the holding member 30 and the cap 50 are connected by the connection part 32 previously.
- the connecting portion 32 is cut to separate the main body portion 40 and the cap 50 from each other. Thereby, the cap 50 can be made difficult to lose.
- the cap 50 is fixed to the main body 40 of the gripping member 30, and the main body 40 (gripping member 30) to which the cap 50 is fixed is fixed to the fixing portion 152 of the housing 13 (rear housing 15).
- the cap 50 may not be directly fixed to the main body 40 of the gripping member 30.
- a cap engaging hole (corresponding to a cap fixing portion) is formed in the fixing portion 152 of the housing 13 (rear housing 15), and a cap side claw portion (cap fixing portion) is formed on the outer surface of the side plate portion 53 of the cap 50. ) May be formed. Then, the gripping member 30 (the main body 40 and the cap 50) may be fixed to the fixing portion 152 of the housing 13 by engaging the cap side claws with the cap engagement holes.
- the aforementioned gripping member 30 is configured to be able to grip both the rectangular optical cable 3 and the round optical cable 6 (optical cord 6). However, although the holding member 30 can hold the round optical cable 6, the holding member 30 may not hold the square optical cable 3.
- the above-mentioned holding member 30 is comprised so that holding of multiple types of round optical cable 6 is possible, it may be a shape which respond
- optical cables square optical cables
- 4 optical fibers 6 optical cord (round optical cable), 7 optical fiber, 8 fiber tensile strength
- 10 Optical connector body 11 ferrules, 12 mechanical splices, 12A openings, 13 housings, 14 front housing, 14A front housing, 15 Rear housing, 15A inner wall surface, 15B locking part, 16 springs, 19 insertion members, 30 gripping members, 32 connecting parts, 40 body part, 40A grip part, 40B insertion part, 41 bottom wall, 42 side walls, 44 side walls, 50 cap, 50A tube, 50B front end face, 50C rear plate, 51 top plate, 52 bottom plate, 53 side plate, 53A engagement hole, 53B cap inner surface, 53C cap outer surface, 55 insertion holes, 61 first fitting portion, 62 second fitting portion, 63 butting portion (folded portion), 70 assembly tools, 80 front members, 90 rear members, 91 cable holder, 92 fibrous tension rod holder, 100 optical connector, 421 projection, claw for 422 cap, 423 slit,
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
[Problem] To anchor a fibrous tensile strength body without being twisted. [Solution] This optical connector is provided with: a holding member that holds an optical cable having an optical fiber; a housing that has a fixing part for fixing the holding member. The holding member has a body part having a pair of side wall sections, and a cap attached to the body part. In the side wall sections, slits are formed for drawing a fibrous tensile strength body of the optical cable from the inside to the outside thereof. By sliding the cap with respect to the body part, the cap can be attached to the body part with the fibrous tensile strength body interposed between the internal surface of the cap and the external surfaces of the side wall sections.
Description
本発明は、光コネクタ、把持部材、及び、光コネクタの製造方法に関する。
The present invention relates to an optical connector, a gripping member, and a method of manufacturing the optical connector.
光ファイバの端面同士を突き合わせることによって光ファイバを接続する装置として、例えば現場組立型光コネクタが知られている。現場組立型光コネクタは、光ファイバ敷設現場において光ケーブル(角型光ケーブルや丸型光コードを含む)の端末に容易に組み立て可能な構造の光コネクタである。組立前の光コネクタのフェルールには、工場にて予め内蔵ファイバが取り付けられているとともに、内蔵ファイバの端部はメカニカルスプライス部に配置されている。組み立て作業現場において、把持部材に光ケーブルを把持させるとともに、光ケーブルから口出しされた挿入ファイバの端部がメカニカルスプライス部に挿入され、メカニカルスプライス部において光ファイバ同士が突き合わせ接続されることになる。
For example, 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 to an end of an optical cable (including a square optical cable and a round optical cord) at an optical fiber installation site. In the ferrule of the optical connector before assembly, 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. At an assembly work site, while holding the optical cable by the holding member, the end of the insertion fiber extracted from the optical cable is inserted into the mechanical splice portion, and the optical fibers are butt-connected in the mechanical splice portion.
特許文献1には、外周面にネジ部の形成された固定部に固定キャップをネジ留めし、光ケーブル(光コードを含む)の繊維状抗張力体を固定部と固定キャップとの間に挟み込むことによって、光ケーブルの繊維状抗張力体を引き留めることが記載されている。
In Patent Document 1, a fixing cap is screwed to a fixing part having a screw formed on an outer peripheral surface, and a fibrous tensile member of an optical cable (including an optical cord) is sandwiched between the fixing part and the fixing cap. It is described to hold down the fiber tensile strength of the optical cable.
特許文献1記載の技術では、繊維状抗張力体を引き留める際に固定キャップをネジ留めするため、固定キャップに挟み込まれた繊維状抗張力体がツイストしてしまう。この結果、光コネクタに引き留められた光ケーブルに予期せぬ負荷がかかるおそれがある。
According to the technique described in Patent Document 1, when holding the fibrous tensile member, the fixing cap is screwed, so the fibrous tensile member sandwiched by the fixing cap is twisted. As a result, there is a possibility that an unexpected load may be applied to the optical cable retained at the optical connector.
本発明は、繊維状抗張力体をツイストさせずに引き留める構造を提供することを目的とする。
An object of the present invention is to provide a structure for retaining a fibrous tensile body without twisting.
上記目的を達成するための主たる発明は、光ファイバを有する光ケーブルを把持する把持部材と、前記把持部材を固定する固定部を有するハウジングと、を備えた光コネクタであって、前記把持部材は、一対の側壁部を有する本体部と、前記本体部に取り付けるキャップとを有し、前記側壁部には、前記光ケーブルの繊維状抗張力体を内側から外側に出すためのスリットが形成されており、前記本体部に対して前記キャップをスライドさせることによって、前記側壁部の外面と前記キャップの内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記本体部に前記キャップを取り付け可能であることを特徴とする光コネクタである。
The main invention for achieving the above object is an optical connector comprising a holding member for holding an optical cable having an optical fiber, and a housing having a fixing portion for fixing the holding member, wherein the holding member is The apparatus has a main body having a pair of side walls, and a cap attached to the main body, and the side walls are formed with a slit for taking out the fibrous tension member of the optical cable from the inside to the outside. By sliding the cap relative to the main body, the cap can be attached to the main body with the fibrous tensile member sandwiched between the outer surface of the side wall and the inner surface of the cap. An optical connector characterized by
本発明の他の特徴については、後述する明細書及び図面の記載により明らかにする。
Other features of the present invention will become apparent from the description of the specification and the drawings described below.
本発明によれば、繊維状抗張力体をツイストさせずに引き留めることができる。
According to the present invention, the fibrous tensile body can be retained without being twisted.
後述する明細書及び図面の記載から、少なくとも以下の事項が明らかとなる。
At least the following matters will be clear from the description of the specification and drawings to be described later.
光ファイバを有する光ケーブルを把持する把持部材と、前記把持部材を固定する固定部を有するハウジングと、を備えた光コネクタであって、前記把持部材は、一対の側壁部を有する本体部と、前記本体部に取り付けるキャップとを有し、前記側壁部には、前記光ケーブルの繊維状抗張力体を内側から外側に出すためのスリットが形成されており、前記本体部に対して前記キャップをスライドさせることによって、前記側壁部の外面と前記キャップの内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記本体部に前記キャップを取り付け可能であることを特徴とする光コネクタが明らかとなる。このような光コネクタによれば、繊維状抗張力体をツイストさせずに引き留めることができる。
An optical connector comprising: a holding member for holding an optical cable having an optical fiber; and a housing having a fixing portion for fixing the holding member, wherein the holding member is a main body having a pair of side walls, A cap attached to the main body, and the side wall is provided with a slit for bringing out the fibrous tensile member of the optical cable from the inside to the outside, and the cap is slid relative to the main body Thus, the optical connector is characterized in that the cap can be attached to the main body in a state where the fibrous tensile body is sandwiched between the outer surface of the side wall and the inner surface of the cap. According to such an optical connector, it is possible to hold the fibrous tensile member without twisting.
前記ハウジングの前記固定部に対して前記把持部材をスライドさせることによって、前記キャップの外面と前記固定部の内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記固定部に前記把持部材を固定可能であることが望ましい。これにより、把持部材を外側から押圧することができ、把持部材による繊維状抗張力体の把持力を高めることができる。
The gripping member is fixed to the fixing portion in a state in which the fibrous tension member is sandwiched between the outer surface of the cap and the inner surface of the fixing portion by sliding the gripping member with respect to the fixing portion of the housing. It is desirable to be able to fix the Thereby, the gripping member can be pressed from the outside, and the gripping force of the fibrous tension member by the gripping member can be increased.
前記本体部に段差部が形成されており、前記段差部と前記キャップの端面との間において、前記側壁部の外面と前記キャップの内面との間で挟まれた前記繊維状抗張力体が折り返されて、前記キャップの外面と前記固定部の内面との間で前記繊維状抗張力体が挟み込まれることが望ましい。これにより、繊維状抗張力体の把持力をより高めるができる。
A stepped portion is formed in the main body portion, and the fibrous tensile strength body sandwiched between the outer surface of the side wall portion and the inner surface of the cap is folded back between the stepped portion and the end surface of the cap. Preferably, the fibrous tensile body is sandwiched between the outer surface of the cap and the inner surface of the fixing portion. This can further increase the gripping force of the fibrous tensile member.
前記段差部と前記キャップの端面との間において、折り返された前記繊維状抗張力体が挟み込まれることが望ましい。これにより、繊維状抗張力体の引き留め力をさらに高めることができる。
It is desirable that the folded fiber tensile strength body be sandwiched between the stepped portion and the end face of the cap. This can further increase the holding force of the fibrous tensile body.
前記繊維状抗張力体を挟み込む部位に、摩擦力を増す、滑り止め剤が塗布されていることが望ましい。これにより、繊維状抗張力体の滑りを防止でき、引き留め力を高めることができる。
It is desirable that an anti-slip agent, which increases the frictional force, be applied to the portion where the fibrous tensile member is sandwiched. This makes it possible to prevent the slip of the fibrous tensile member and to increase the retaining force.
前記本体部と前記キャップのそれぞれにキャップ用固定部を有することが望ましい。これにより、側壁部の外面とキャップの内面との間に繊維状抗張力体を挟み込んだ状態で本体部とキャップとを固定することができる。
It is desirable that a cap fixing portion be provided on each of the main body portion and the cap. Thereby, the main body portion and the cap can be fixed in a state in which the fibrous tensile strength body is sandwiched between the outer surface of the side wall portion and the inner surface of the cap.
前記ハウジングと前記本体部のそれぞれに係合部を有することが望ましい。これにより、ハウジングと本体部とを固定することができる。
It is desirable that the housing and the main body have engaging portions respectively. Thereby, the housing and the main body can be fixed.
前記一対の側壁部の内面に、内側に突出する突起部が形成されていることが望ましい。これにより、突起部を光ケーブルの外被に食い込ませて、光ケーブルを把持することができる。特に、角型光ケーブルの把持力を高めることができる。
It is desirable that a projection that protrudes inward is formed on the inner surface of the pair of side walls. Thus, the protrusion can be bitten into the sheath of the optical cable to grip the optical cable. In particular, the gripping force of the rectangular optical cable can be increased.
前記光ケーブルの前記繊維状抗張力体の量に応じた前記キャップを複数有することが望ましい。これにより、光ケーブルの種類に対する対応性を高めることができる。
It is desirable to have a plurality of caps according to the amount of the fibrous tensile member of the optical cable. This can improve the adaptability to the type of optical cable.
複数の前記キャップは一体成型によって形成されていることが望ましい。これにより、コストを低減することができる。
Preferably, the plurality of caps are formed by integral molding. This can reduce the cost.
前記本体部と前記キャップが予め連結されていることが望ましい。これにより、キャップを紛失しにくくすることができる。
It is desirable that the body portion and the cap be connected in advance. This makes it difficult to lose the cap.
また、光ファイバを有する光ケーブルを把持する把持部を備えた把持部材であって、一対の側壁部を有する本体部と、前記本体部に取り付けるキャップとを有し、前記側壁部には、前記光ケーブルの繊維状抗張力体を内側から外側に出すためのスリットが形成されており、前記本体部に対して前記キャップをスライドさせることによって、前記側壁部の外面と前記キャップの内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記本体部に前記キャップを取り付け可能であることを特徴とする把持部材が明らかとなる。
A gripping member comprising a gripping portion for gripping an optical cable having an optical fiber, comprising: a main body having a pair of side wall portions; and a cap attached to the main body portion; A slit is formed for bringing out the fibrous tensile strength body from the inside to the outside, and by sliding the cap relative to the main body, the fiber is provided between the outer surface of the side wall and the inner surface of the cap The gripping member is characterized in that the cap can be attached to the main body in a state in which the tension tensile body is sandwiched.
また、光ケーブルを保持した把持部材を光コネクタの本体部に挿入することによって前記光コネクタを組み立てる光コネクタ製造方法であって、前記把持部材は、一対の側壁部を有する本体部と、前記本体部に取り付けるキャップとを備えており、前記本体部の前記一対の側壁部の間に前記光ケーブルを収容するとともに、前記側壁部に形成されたスリットを介して、前記光ケーブルの繊維状抗張力体を前記一対の側壁部の内側から外側に出す工程と、前記本体部に対して前記キャップをスライドさせることによって、前記側壁部の外面と前記キャップの内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記本体部に前記キャップを取り付ける工程と、を行うことを特徴とする光コネクタ製造方法が明らかとなる。
In the optical connector manufacturing method, the optical connector is assembled by inserting a holding member holding an optical cable into a main body of the optical connector, the holding member includes a main body having a pair of side walls, and the main body A cap attached to the housing, the optical cable being accommodated between the pair of side walls of the main body, and the pair of fibrous tensile members of the optical cable being inserted through the slits formed in the side wall. And the step of pulling the cap against the main body, thereby sandwiching the fibrous tensile body between the outer surface of the side wall and the inner surface of the cap. And a step of attaching the cap to the main body, and a method of manufacturing an optical connector is clarified.
====第1実施形態===
<基本構成>
図1Aは、光コネクタ100の斜視図である。図1Bは、光コネクタ100の分解斜視図である。以下の説明では、図1Aに示すように光ケーブルや光ファイバの光軸方向を「前後方向」とし、光ケーブルの延び出た側を「後」とし、逆側(光コネクタ100のフェルール11の端面側)を「前」とする。 === First Embodiment ===
<Basic configuration>
FIG. 1A is a perspective view of theoptical connector 100. FIG. FIG. 1B is an exploded perspective view of the optical connector 100. In the following description, as shown in FIG. 1A, the optical axis direction of the optical cable or optical fiber is "front-back direction", the extension side of the optical cable is "rear", and the opposite side (end face side of the ferrule 11 of the optical connector 100) Let ") be" front ".
<基本構成>
図1Aは、光コネクタ100の斜視図である。図1Bは、光コネクタ100の分解斜視図である。以下の説明では、図1Aに示すように光ケーブルや光ファイバの光軸方向を「前後方向」とし、光ケーブルの延び出た側を「後」とし、逆側(光コネクタ100のフェルール11の端面側)を「前」とする。 === First Embodiment ===
<Basic configuration>
FIG. 1A is a perspective view of the
本実施形態の光コネクタ100は、メカニカルスプライス法により光ファイバを接続する現場組立型光コネクタであり、光ケーブルの端末に組み立てられる光コネクタである。また、本実施形態の光コネクタ100は、SC形光コネクタよりも小型で高密度実装が可能なLC形光コネクタである。
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.
光コネクタ100は、光コネクタ本体10と、把持部材30と、光ケーブル(角形光ケーブル3、丸型光ケーブル6)とを備えている。
The optical connector 100 includes an optical connector main body 10, a gripping member 30, and an optical cable (square optical cable 3 and round optical cable 6).
光コネクタ本体10は、フェルール11と、メカニカルスプライス部12と、ハウジング13と、スプリング16と、介挿部材19とを有している。
The optical connector main body 10 has a ferrule 11, a mechanical splice portion 12, a housing 13, a spring 16 and an insertion member 19.
フェルール11は、ここでは単心光コネクタに使用される円筒形状のフェルールである。
The ferrule 11 is a cylindrical ferrule used here for a single-core optical connector.
メカニカルスプライス部12は、メカニカルスプライス法により内蔵ファイバ(不図示)と挿入ファイバ(角型光ケーブル3の光ファイバ4や丸型光ケーブル6の光ファイバ7)とを軸合わせ(調心)するとともに、内蔵ファイバ及び挿入ファイバを固定する部材(光ファイバ接続装置)である。内蔵ファイバの前端は、フェルール11に内挿固定されるとともに、フェルール11とともに端面が研磨されている。内蔵ファイバの後端は、メカニカルスプライス部12に配置されている。
The mechanical splice section 12 aligns (aligns) the built-in fiber (not shown) with the insertion fiber (the optical fiber 4 of the rectangular optical cable 3 or the optical fiber 7 of the round optical cable 6) by mechanical splicing. It is a member (optical fiber connecting device) which fixes a fiber and an insertion fiber. 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.
また、メカニカルスプライス部12は、後端に開口部12Aを有している。開口部12Aは、挿入ファイバの挿入口である。
The mechanical splice 12 also has an opening 12A at the rear end. The opening 12A is an insertion port of an insertion fiber.
ハウジング13は、前側ハウジング14と後側ハウジング15を備えている。
The housing 13 includes a front housing 14 and a rear housing 15.
前側ハウジング14は、ハウジング13の前側を構成する部位であり、前側収容部14Aを有している。前側収容部14Aは、メカニカルスプライス部12の前側部分を収容する部位である。
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.
後側ハウジング15は、ハウジング13の後側を構成する部位である。後側ハウジング15は、後側収容部(不図示)と、固定部152とを有している。
The rear housing 15 is a portion that constitutes the rear side of the housing 13. The rear housing 15 has a rear housing portion (not shown) and a fixing portion 152.
後側収容部は、メカニカルスプライス部12の後側部分を収容する部位であり、後側ハウジング15の前側に設けられている。
The rear housing portion is a portion for housing the rear portion of the mechanical splice portion 12 and is provided on the front side of the rear housing 15.
固定部152は、把持部材30を固定する部位であり、後側ハウジング15の後側に配置されている。固定部152は、図1Aに示すように、内壁面15Aと、係止部15Bとを有している。
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.
内壁面15Aは、固定部152の内側の面であり、把持部材30を収容するための収容空間を形成する面である。このため、内壁面15Aは、把持部材30の外形(断面矩形状)に対応する矩形状に形成されている。上記の収容空間は、固定部152の後端面で開口しており、この開口から把持部材30を挿入することになる。内壁面15Aは、把持部材30を前後方向にスライドさせるスライド面となる。
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.
また、固定部152に把持部材30を挿入したとき、内壁面15Aは、把持部材30を外側から押圧する。これにより、丸型光ケーブル6の場合、把持部材30による繊維状抗張力体8の把持力が向上する。また、把持部材30の本体部40とキャップ50との間で繊維状抗張力体8を挟み込む力が向上する。また、角形光ケーブル3の場合、把持部材30の側壁部42(後述)を内側に圧迫して、側壁部42の間で角形光ケーブル3の外被を挟み込む力が向上する。
Further, when the gripping member 30 is inserted into the fixing portion 152, the inner wall surface 15A presses the gripping member 30 from the outside. Thereby, in the case of the round optical cable 6, the gripping force of the fibrous tension member 8 by the gripping member 30 is improved. In addition, the force of sandwiching the fibrous tensile body 8 between the main body 40 of the gripping member 30 and the cap 50 is improved. Further, in the case of the rectangular optical cable 3, the side wall 42 (described later) of the gripping member 30 is pressed inward to improve the force of sandwiching the jacket of the rectangular optical cable 3 between the side walls 42.
また、固定部152の内壁面15Aは、丸型光ケーブル6に対して、把持部材30(詳しくはキャップ50)との間で、繊維状抗張力体8を挟み込む機能も有する。
Further, the inner wall surface 15A of the fixing portion 152 also has a function of sandwiching the fibrous tensile body 8 between the round optical cable 6 and the gripping member 30 (specifically, the cap 50).
係止部15B(係合部に相当)は、固定部152の側壁に形成されている。係止部15Bは、把持部材30の側壁に形成された爪部441(後述)を係止する。
The locking portion 15B (corresponding to the engaging portion) is formed on the side wall of the fixing portion 152. The locking portion 15B locks a claw portion 441 (described later) formed on the side wall of the gripping member 30.
スプリング16は、後退可能に収容されたフェルール11を前側に付勢するための部材である。
The spring 16 is a member for biasing the retractably accommodated ferrule 11 to the front side.
介挿部材19は、光コネクタ本体10のメカニカルスプライス部12の隙間を開閉させる部材である。光コネクタ本体10には挿通穴(不図示)が形成されており、この挿通穴に、介挿部材19から延び出たくさび(不図示)が挿通される。
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 in the optical connector main body 10, and a wedge (not shown) extending from the insertion member 19 is inserted into the insertion hole.
把持部材30は、光ケーブルを把持する部材である。把持部材30は、光ケーブルを把持した状態で光コネクタ本体10の固定部152に挿入される。本実施形態の把持部材30は、光ケーブルとして、角型光ケーブル3及び丸型光ケーブル6を把持可能である。本実施形態の把持部材30の構成については後述する。
The gripping member 30 is a member that grips the optical cable. 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 is gripped. The gripping member 30 of the present embodiment can grip the rectangular optical cable 3 and the round optical cable 6 as optical cables. The configuration of the gripping member 30 of the present embodiment will be described later.
角形光ケーブル3は、例えば、ドロップケーブルやインドアケーブルなどのケーブルである。角形光ケーブル3は、光ファイバ4と一対の線状の抗張力体とを外被で一括被覆した断面角型の光ケーブルである。このような角形光ケーブル3は、外被が比較的硬いので、把持部材30の突起部421(後述)を外被に食い込ませて光ケーブル3を把持することが比較的容易である。以下の説明では、角型光ケーブル3のことを単に「光ケーブル3」と呼ぶことがある。
The rectangular optical cable 3 is, for example, a cable such as a drop cable or an indoor cable. The square optical cable 3 is an angular cross section optical cable in which the optical fiber 4 and a pair of linear tensile strength members are collectively covered with an outer jacket. Since the outer sheath of the rectangular optical cable 3 is relatively hard, it is relatively easy to grip the optical cable 3 by causing the projections 421 (described later) of the gripping members 30 to bite into the outer sheath. In the following description, the rectangular optical cable 3 may be simply referred to as "optical cable 3".
丸型光ケーブル6は、光ファイバ7の周囲に繊維状抗張力体8を配置して外被で被覆した断面丸型の光ケーブルである。繊維状抗張力体8は、例えばケブラー(登録商標)である。以下の説明では、丸型光ケーブル6のことを「光コード6」と呼ぶことがある。このような光コード6は、外被が柔らかいので光ケーブル3のように、外被を把持して引き留めることが難しい。このため、把持部材30に繊維状抗張力体8を把持させることによって、光コード6を光コネクタ100に引き留めている。
The round optical cable 6 is a round optical cable in which a fibrous tensile member 8 is disposed around the optical fiber 7 and covered with an outer jacket. The fibrous tensile body 8 is, for example, Kevlar (registered trademark). In the following description, the round optical cable 6 may be referred to as "optical code 6". Such an optical cord 6 has a soft jacket, and therefore, like the optical cable 3, it is difficult to grip and hold the jacket. Therefore, the optical cord 6 is attracted to the optical connector 100 by holding the fibrous tensile member 8 by the holding member 30.
<把持部材30の構成>
図2Aは、把持部材30の斜視図であり、図2Bは、把持部材30の分解斜視図である。また、図3A~図3Cは、把持部材30の説明図である。図3Aは、把持部材30を上から見た図であり、後側ハウジング15の固定部152とキャップ50は断面図で示している。図3Bは、光コード6を把持した状態の説明図である。図3Cは、光ケーブル3を把持した状態の説明図である。以下の説明では図に示すように、左右方向と上下方向を定義する。すなわち、突起部421の稜線方向を「上下方向」とし、突起部421に対して底壁部41の側を「下」とし、反対側(開放側)を上とする。また、前後方向及び上下方向に垂直な方向を「左右方向」とし、後側から前側を見たときの右側を「右」とし、左側を「左」とする。 <Configuration of GraspingMember 30>
2A is a perspective view of the grippingmember 30, and FIG. 2B is an exploded perspective view of the gripping member 30. FIG. 3A to 3C are explanatory views of the gripping member 30. FIG. FIG. 3A is a top view of the gripping member 30, and the fixing portion 152 of the rear housing 15 and the cap 50 are shown in cross section. FIG. 3B is an explanatory view of a state in which the optical code 6 is gripped. FIG. 3C is an explanatory view of a state in which the optical cable 3 is gripped. In the following description, as shown in the drawings, the horizontal direction and the vertical direction are defined. That is, the ridge line direction of the protrusion 421 is "vertical direction", the side of the bottom wall 41 with respect to the protrusion 421 is "lower", and the opposite side (open side) is upper. In addition, 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”.
図2Aは、把持部材30の斜視図であり、図2Bは、把持部材30の分解斜視図である。また、図3A~図3Cは、把持部材30の説明図である。図3Aは、把持部材30を上から見た図であり、後側ハウジング15の固定部152とキャップ50は断面図で示している。図3Bは、光コード6を把持した状態の説明図である。図3Cは、光ケーブル3を把持した状態の説明図である。以下の説明では図に示すように、左右方向と上下方向を定義する。すなわち、突起部421の稜線方向を「上下方向」とし、突起部421に対して底壁部41の側を「下」とし、反対側(開放側)を上とする。また、前後方向及び上下方向に垂直な方向を「左右方向」とし、後側から前側を見たときの右側を「右」とし、左側を「左」とする。 <Configuration of Grasping
2A is a perspective view of the gripping
本実施形態の把持部材30は、本体部40とキャップ50を備えている。
The gripping member 30 of the present embodiment includes a main body 40 and a cap 50.
本体部40は、把持部材30の本体を構成する部位であり、把持部40Aと挿通部40Bを有している。
The main body portion 40 is a portion that constitutes the main body of the gripping member 30, and has a gripping portion 40A and an insertion portion 40B.
把持部40Aは、光ケーブル3や光コード6を把持する部位であり、本体部40の後側に設けられている。把持部40Aは、底壁部41と、一対の側壁部42を有している。
The gripping portion 40A is a portion for gripping the optical cable 3 and the optical cord 6, and is provided on the rear side of the main body portion 40. The grip portion 40A has a bottom wall portion 41 and a pair of side wall portions 42.
底壁部41は、把持部40Aの下部(底部)を構成する部位である。
The bottom wall portion 41 is a portion that constitutes the lower portion (bottom portion) of the grip portion 40A.
一対の側壁部42は、底壁部41の左右の両端から立設している。一対の側壁部42は、それぞれ、突起部421と、キャップ用爪部422と、スリット423と、把持部外面424と、段差部425とを有している。
The pair of side wall portions 42 is erected from the left and right ends of the bottom wall portion 41. Each of the pair of side wall portions 42 includes a protrusion 421, a cap claw 422, a slit 423, a grip outer surface 424, and a step 425.
突起部421は、側壁部42の対向する面(内面)から内側に突出し、上下方向に沿った突起(鬼目)である。突起部421は、上から見たとき、突出側(内側)が鋭くなるように断面略三角形に形成されている。突起部421の稜線は、上下方向に平行である。一方の側壁部42の突起部421は、他方の側壁部42の突起部421と対向するように配置されている。光ケーブル(光ケーブル3や光コード6)を一対の側壁部42の間に収容すると、突起部421が光ケーブルの外被に食い込む。但し、光コード6の場合は、前述したように、光ケーブル3と比べて外皮が柔らかいため、十分な把持力が得られにくい。
The protruding portion 421 is a protruding portion (pronged eye) which protrudes inward from the facing surface (inner surface) of the side wall portion 42 and extends in the vertical direction. The protrusion 421 is formed in a substantially triangular cross section so that the protruding side (inner side) is sharp when viewed from above. The ridgeline of the protrusion 421 is parallel to the vertical direction. The protrusion 421 of one side wall 42 is disposed to face the protrusion 421 of the other side wall 42. When the optical cable (the optical cable 3 and the optical cord 6) is accommodated between the pair of side walls 42, the projection 421 bites into the sheath of the optical cable. However, in the case of the optical cord 6, as described above, since the outer shell is softer than the optical cable 3, it is difficult to obtain a sufficient gripping force.
キャップ用爪部422(キャップ用固定部に相当)は、キャップ50を固定させるための部位である。キャップ50を取り付けたときに、キャップ用爪部422は、キャップ50の係合穴53Aと係合する。
The cap claw portion 422 (corresponding to a cap fixing portion) is a portion for fixing the cap 50. When the cap 50 is attached, the cap claw 422 engages with the engagement hole 53A of the cap 50.
スリット423は、一対の側壁部42の内側から外側に繊維状抗張力体8を排出させるための溝状の部位である。
The slit 423 is a groove-like portion for discharging the fibrous tensile member 8 from the inside to the outside of the pair of side wall portions 42.
把持部外面424は、一対の側壁部42の外側の面である。把持部外面424は、キャップ50の内面(後述するキャップ内面53B)から押圧される面である。キャップ50から押されることによって、把持部外面424は、一対の側壁部42を内側に変形させ、左右の突起部421を光ケーブル3や光コード6の外被に食い込ませる。これにより各光ケーブル(特に光ケーブル3)の把持力が向上する。また、光コード6の場合、把持部外面424は、キャップ50との間で繊維状抗張力体8を挟み込む部位となる。当該部位の位置は、把持部外面424のうち、スリット423よりも前側の側壁部42の外面である(図3B参照)。
The grip outer surface 424 is an outer surface of the pair of side walls 42. The grip outer surface 424 is a surface pressed from the inner surface of the cap 50 (cap inner surface 53B described later). By being pushed from the cap 50, the grip outer surface 424 deforms the pair of side wall portions 42 inward, and bites the left and right protrusions 421 into the sheath of the optical cable 3 and the optical cord 6. Thereby, the gripping force of each optical cable (in particular, the optical cable 3) is improved. Further, in the case of the optical cord 6, the grip portion outer surface 424 is a portion for sandwiching the fibrous tensile body 8 with the cap 50. The position of the portion is the outer surface of the side wall portion 42 on the front side of the slit 423 in the grip portion outer surface 424 (see FIG. 3B).
段差部425は、光コード6を把持する場合に、キャップ50の前端面50Bとの間で繊維状抗張力体8を挟み込む部位である。段差部425は、把持部外面424の前端に設けられている。また、段差部425は、把持部40Aと挿通部42Bとの間(境界)に設けられている。
The stepped portion 425 is a portion for sandwiching the fibrous tensile body 8 with the front end surface 50 </ b> B of the cap 50 when gripping the optical cord 6. The stepped portion 425 is provided at the front end of the grip portion outer surface 424. Further, the stepped portion 425 is provided (boundary) between the grip portion 40A and the insertion portion 42B.
挿通部40Bは、光ファイバ(光ケーブル3の光ファイバ4や、光コード6の光ファイバ7)を挿通させる部位であり、把持部40Aよりも前側に設けられている。挿通部40Bは、底壁部43と、一対の側壁部44と、を有する。
The insertion part 40B is a site | part which penetrates an optical fiber (The optical fiber 4 of the optical cable 3, the optical fiber 7 of the optical code 6), and is provided ahead rather than the holding part 40A. The insertion portion 40B has a bottom wall portion 43 and a pair of side wall portions 44.
底壁部43は、把持部40Aの底壁部41と連続した部位であり、挿通部40Bの下部(底部)を構成する。
The bottom wall portion 43 is a portion continuous with the bottom wall portion 41 of the grip portion 40A, and constitutes a lower portion (bottom portion) of the insertion portion 40B.
一対の側壁部44は、底壁部43の左右両端に立設している。また、一対の側壁部44には爪部441(係合部に相当)が設けられている。
The pair of side wall portions 44 is provided upright on the left and right ends of the bottom wall portion 43. Further, claws 441 (corresponding to engaging portions) are provided on the pair of side wall portions 44.
爪部441は、一対の側壁部44の外側の面にそれぞれ設けられている。把持部材30を光コネクタ本体10の後側ハウジング15の固定部152に挿入すると、把持部外面424が固定部152の係止部15Bに引っ掛かる。これにより、把持部材30を光コネクタ本体10に固定することができる。
The claws 441 are provided on the outer surfaces of the pair of side walls 44 respectively. When the gripping member 30 is inserted into the fixing portion 152 of the rear housing 15 of the optical connector main body 10, the gripping portion outer surface 424 is caught by the locking portion 15 B of the fixing portion 152. Thus, the gripping member 30 can be fixed to the optical connector main body 10.
キャップ50は、本体部40の把持部40Aと嵌合し、把持部40Aを覆う部材である。キャップ50は、筒部50Aと、前端面50Bと、後板部50Cとを有している。
The cap 50 is a member that fits with the grip portion 40A of the main body portion 40 and covers the grip portion 40A. The cap 50 has a cylindrical portion 50A, a front end surface 50B, and a rear plate portion 50C.
筒部50Aは、キャップ50の筒状の部位である。本実施形態の筒部50Aは、角筒状に形成されており、上板部51と、底板部52と、一対の側板部53とを有している。
The cylindrical portion 50A is a cylindrical portion of the cap 50. The cylindrical portion 50A of the present embodiment is formed in a rectangular cylindrical shape, and includes an upper plate portion 51, a bottom plate portion 52, and a pair of side plate portions 53.
上板部51は、キャップ50の上部を構成する板状の部位である。
The upper plate portion 51 is a plate-like portion that constitutes the upper portion of the cap 50.
底板部52は、キャップ50の下部(底部)を構成する板状の部位である。
The bottom plate portion 52 is a plate-like portion that constitutes the lower portion (bottom portion) of the cap 50.
一対の側板部53は、キャップ50の左右の両側部を構成する板状の部位である。一対の側板部53は、把持部40Aの一対の側壁部42を外側から押圧する。また、一対の側板部53は、光コネクタ本体10(後側ハウジング15)の固定部152の内壁面15Aから押圧力を受ける。
The pair of side plate portions 53 is a plate-like portion that constitutes the left and right side portions of the cap 50. The pair of side plate portions 53 presses the pair of side wall portions 42 of the grip portion 40A from the outside. Further, the pair of side plate portions 53 receives a pressing force from the inner wall surface 15A of the fixing portion 152 of the optical connector main body 10 (rear housing 15).
また、一対の側板部53は、それぞれ、係合穴53A(キャップ用固定部に相当)と、キャップ内面53Bとを有している。
Further, the pair of side plate portions 53 each have an engagement hole 53A (corresponding to a fixing portion for a cap) and a cap inner surface 53B.
係合穴53Aは、本体部40の把持部40Aのキャップ用爪部422と係合する。これにより、本体部40にキャップ50が固定される。
The engagement hole 53A engages with the cap claw 422 of the grip 40A of the main body 40. Thus, the cap 50 is fixed to the main body 40.
キャップ内面53Bは、一対の側板部53の対向する面(内面)であり、把持部40Aの一対の側壁部42の外面(把持部外面424)を外側から押圧する面である。このように、キャップ内面53Bが把持部40Aの一対の側壁部42の把持部外面424を押圧することにより、把持力が向上する。また、把持力が向上することにより、光コネクタ本体10のハウジング13(後側ハウジング15)の固定部152からの押圧力を小さく設定できるようになるため、ハウジング13(後側ハウジング15)の肉厚を薄くできる。
The cap inner surface 53B is an opposing surface (inner surface) of the pair of side plate portions 53, and is a surface that presses the outer surface (gripping portion outer surface 424) of the pair of side wall portions 42 of the gripping portion 40A from the outside. Thus, the gripping force is improved by the cap inner surface 53B pressing the gripping portion outer surfaces 424 of the pair of side wall portions 42 of the gripping portion 40A. Further, since the pressing force from the fixing portion 152 of the housing 13 (rear side housing 15) of the optical connector main body 10 can be set small by improving the gripping force, the thickness of the housing 13 (rear side housing 15) The thickness can be reduced.
また、光ケーブル3の場合、キャップ内面53B(側板部53の内面、特に把持部外面424と対向する内面)は、把持部40Aの一対の側壁部42を外側から押圧し、一対の側壁部42を内側に変形させ、左右の突起部421を光ケーブル3の外被に食い込ませる。これにより、光ケーブル3の把持力が向上する。
Further, in the case of the optical cable 3, the cap inner surface 53B (the inner surface of the side plate portion 53, particularly the inner surface facing the gripping portion outer surface 424) presses the pair of sidewall portions 42 of the gripping portion 40A from the outside, and the pair of sidewall portions 42 It is deformed inward, and the left and right protrusions 421 are bitten into the sheath of the optical cable 3. Thereby, the gripping force of the optical cable 3 is improved.
また、光コード6の場合、キャップ内面53Bのうち、スリット423よりも前側の側壁部42(把持部外面424)と対向する部位は、本体部40の把持部外面424との間で繊維状抗張力体8を挟み込む部位となる(図3B参照)。
Further, in the case of the optical cord 6, a portion of the cap inner surface 53B facing the side wall portion 42 (grip portion outer surface 424) on the front side of the slit 423 has a fibrous tension between the grip portion outer surface 424 of the main body 40 It becomes a part which inserts the body 8 (see FIG. 3B).
なお、筒部50Aの内面は、本体部40の把持部40Aの外形に適合した形状に構成されている。これにより、本体部40の把持部40Aに対して、キャップ50をスライド移動(平行移動)させることができる。本実施形態では、筒部50Aが角筒状に形成されているため、キャップ50をスライドさせたときに、キャップ50が把持部40Aに対して回転しない。これにより、繊維状抗張力体8のツイストを防止することができる。
The inner surface of the cylindrical portion 50A is formed in a shape that conforms to the outer shape of the grip portion 40A of the main body portion 40. Thus, the cap 50 can be slid (parallelly moved) with respect to the grip portion 40A of the main body portion 40. In the present embodiment, since the cylindrical portion 50A is formed in a square cylindrical shape, when the cap 50 is slid, the cap 50 does not rotate with respect to the gripping portion 40A. Thereby, the twist of the fibrous tension member 8 can be prevented.
キャップ外面53Cは、一対の側板部53の外側の面(外面)であり、光コネクタ本体10の固定部152の内壁面15Aから押圧力を受ける面である。また、光コード6の場合に、光コネクタ本体10(後側ハウジング15の固定部152)との間で繊維状抗張力体8を挟み込む部位である。
The cap outer surface 53C is an outer surface (outer surface) of the pair of side plate portions 53 and is a surface that receives a pressing force from the inner wall surface 15A of the fixing portion 152 of the optical connector main body 10. In the case of the optical cord 6, the fiber tensile strength body 8 is sandwiched between the optical cord 6 and the optical connector main body 10 (the fixing portion 152 of the rear housing 15).
前端面50Bは、筒部50A前側の端面である。前端面50Bは、光コード6の場合に、本体部40の段差部425との間で、繊維状抗張力体8を挟み込む部位である。
The front end surface 50B is an end surface on the front side of the cylindrical portion 50A. In the case of the optical cord 6, the front end face 50B is a portion where the fibrous tensile body 8 is sandwiched between the front end face 50B and the step 425 of the main body 40.
後板部50Cは、筒部50Aの後側の部位であり、挿通穴55が前後方向に貫通して設けられている。挿通穴55は、光ケーブル3や光コード6を挿通させるための穴である。
The rear plate portion 50C is a portion on the rear side of the cylindrical portion 50A, and an insertion hole 55 is provided to penetrate in the front-rear direction. The insertion hole 55 is a hole for inserting the optical cable 3 and the optical cord 6.
また、図3B及び図3Cに示すように、本体部40とキャップ50とハウジング13(後側ハウジング15)とによって、第1嵌合部61と、第2嵌合部62と、突き当て部(折り返し部)63が形成されている。
Further, as shown in FIGS. 3B and 3C, the first fitting portion 61, the second fitting portion 62, and the butt portion (the rear portion) are formed by the main body portion 40, the cap 50, and the housing 13 (rear housing 15). A folded back portion 63 is formed.
第1嵌合部61は、本体部40の把持部外面424と、キャップ50のキャップ内面53Bで構成されている。第1嵌合部61は、キャップ内面53Bで把持部外面424を外側から押圧(圧迫)する。これにより、光ケーブル3の場合、一対の側壁部42を内側に変形させ、左右の突起部421が光ケーブル3の外被に食い込む。よって光ケーブル3の把持力が向上する。また、光コード6の場合、把持部外面424とキャップ内面53Bとの間で、繊維状抗張力体8を挟み込む。
The first fitting portion 61 is configured of a grip portion outer surface 424 of the main body portion 40 and a cap inner surface 53 B of the cap 50. The first fitting portion 61 presses (compresses) the grip portion outer surface 424 from the outside with the cap inner surface 53B. Thus, in the case of the optical cable 3, the pair of side wall portions 42 is deformed inward, and the left and right protrusions 421 bite into the sheath of the optical cable 3. Thus, the gripping force of the optical cable 3 is improved. Further, in the case of the optical cord 6, the fibrous tensile body 8 is sandwiched between the grip portion outer surface 424 and the cap inner surface 53B.
なお、光ケーブル(角型光ケーブル3や丸型光ケーブル6)の種類(外形形状)に応じて、第1嵌合部61の寸法A,X(図3A参照)が異なる。また、光コード6の場合、仮に外形形状が同じであっても、繊維状抗張力体8の量に応じて第1嵌合部61の寸法A,X(図3A参照)が異なる。
The dimensions A and X (see FIG. 3A) of the first fitting portion 61 differ depending on the type (outer shape) of the optical cable (square optical cable 3 and round optical cable 6). Further, in the case of the optical cord 6, even if the outer shape is the same, the dimensions A and X (see FIG. 3A) of the first fitting portion 61 differ according to the amount of the fibrous tension member 8.
寸法Aは、キャップ50の左右のキャップ内面53Bの間の長さである。
Dimension A is the length between the left and right cap inner surfaces 53 B of the cap 50.
寸法Xは、一対の側壁部42の外面(左右の把持部外面424)の間の長さである。
The dimension X is a length between the outer surfaces of the pair of side wall portions 42 (the left and right grip portion outer surfaces 424).
光ケーブル3の場合、キャップ内面53Bと側壁部42との間には何も挟まれない。但し、把持部40Aは、底壁部41と一対の側壁部42による断面略U字状であるため、一対の側壁部42の間に光ケーブル3を収容したとき、一対の側壁部42の間隔(特に上端側)が広がることがある。この場合、寸法Xが大きくなるので、寸法Xと寸法Aが同じ設計値であっても、キャップ50を取り付けることで、一対の側壁部42を内側に変形させることができる。一方、一対の側壁部42の間隔が広がらない場合には、キャップ50で一対の側壁部42を内側に変形させるには、寸法Aが寸法Xよりもやや小さいことが必要である。
In the case of the optical cable 3, nothing is pinched between the cap inner surface 53 </ b> B and the side wall portion 42. However, when the optical cable 3 is accommodated between the pair of side walls 42, the distance between the pair of side walls 42 (the grip 40A is substantially U-shaped in cross section by the bottom wall 41 and the pair of side walls 42) In particular, the upper end side may spread. In this case, since the dimension X is increased, even if the dimension X and the dimension A have the same design value, the pair of side wall portions 42 can be deformed inward by attaching the cap 50. On the other hand, when the distance between the pair of side walls 42 does not increase, the dimension A needs to be slightly smaller than the dimension X in order for the cap 50 to deform the pair of side walls 42 inward.
また、光コード6の場合、把持部外面424とキャップ内面53Bとの間に繊維状抗張力体8を挟み込むため、繊維状抗張力体8の量に応じて、適切な寸法A,Xが異なることになる。
Further, in the case of the optical cord 6, since the fibrous tensile body 8 is sandwiched between the grip outer surface 424 and the cap inner surface 53B, the appropriate dimensions A and X differ depending on the amount of the fibrous tensile body 8. Become.
第2嵌合部62は、キャップ外面53Cとハウジング13(後側ハウジング15)の固定部152の内面(内壁面15A)とで構成されている。第2嵌合部62は、ハウジング13(後側ハウジング15)の固定部152で把持部材30を外側から押圧する部位である。
The second fitting portion 62 is configured of a cap outer surface 53C and an inner surface (inner wall surface 15A) of the fixing portion 152 of the housing 13 (rear housing 15). The second fitting portion 62 is a portion for pressing the gripping member 30 from the outside by the fixing portion 152 of the housing 13 (the rear housing 15).
光コード6の場合、第2嵌合部62により、当該第2嵌合部62の繊維状抗張力体8を挟み込む力が向上する。また、第1嵌合部61の繊維状抗張力体8を挟み込む力が向上する。また、第2嵌合部62の繊維状抗張力体8を挟み込む力が向上する。
In the case of the optical cord 6, the second fitting portion 62 improves the force of sandwiching the fibrous tensile body 8 of the second fitting portion 62. Further, the force for sandwiching the fibrous tensile member 8 of the first fitting portion 61 is improved. Further, the force for sandwiching the fibrous tensile member 8 of the second fitting portion 62 is improved.
また、光ケーブル3の場合、第2嵌合部62により、把持部材30(本体部40)の側壁部42を内側に圧迫して、側壁部42の間で外被を挟み込む力が向上する。
Further, in the case of the optical cable 3, the second fitting portion 62 squeezes the side wall portion 42 of the gripping member 30 (main body portion 40) to the inside to improve the force of sandwiching the jacket between the side wall portions 42.
なお、光ケーブル(角型光ケーブル3や丸型光ケーブル6)の種類(外形形状)に応じて、第2嵌合部62の寸法C,Z(図3A参照)が異なる。
The dimensions C and Z (see FIG. 3A) of the second fitting portion 62 differ depending on the type (outer shape) of the optical cable (square optical cable 3 or round optical cable 6).
寸法Cは、キャップ50の左右のキャップ外面53Cの間の長さである。寸法Cと寸法Aとの差分の半分が側板部53の厚さとなる。
Dimension C is the length between the left and right cap outer surfaces 53 C of the cap 50. The half of the difference between the dimension C and the dimension A is the thickness of the side plate portion 53.
寸法Zは、固定部152の左右の内壁面15Aの間の長さである。
The dimension Z is a length between the left and right inner wall surfaces 15A of the fixed portion 152.
光ケーブル3の場合、キャップ外面53Cと固定部152の内壁面15Aとの間には何も挟まれない。但し、把持部材30に光ケーブル3を把持させることで寸法Cが大きくなる(膨らむ)ことがある。この場合、寸法Cと寸法Zが同じ設計値であっても、固定部152で把持部材30を外側から押圧することができる。一方、寸法Cが変化しない場合、固定部152に把持部材30(キャップ50)を挿入したときに、固定部152で把持部材30を外側から押圧するには、寸法Cが寸法Zよりもやや小さいことが必要である。
In the case of the optical cable 3, nothing is pinched between the cap outer surface 53 </ b> C and the inner wall surface 15 </ b> A of the fixing portion 152. However, when the optical cable 3 is gripped by the gripping member 30, the dimension C may be enlarged (expanded). In this case, even if the dimension C and the dimension Z are the same design value, the holding member 152 can be pressed from the outside by the fixing portion 152. On the other hand, when the dimension C does not change, when the gripping member 30 (cap 50) is inserted into the fixing portion 152, the dimension C is slightly smaller than the dimension Z in order to press the gripping member 30 from the outside by the fixing portion 152 It is necessary.
また、光コード6の場合、キャップ外面53Cと固定部152の内壁面15Aとの間に繊維状抗張力体8を挟み込むため、繊維状抗張力体8の量に応じて、適切な寸法C,Zが異なることになる。
Further, in the case of the optical cord 6, in order to sandwich the fibrous tensile body 8 between the cap outer surface 53C and the inner wall surface 15A of the fixing portion 152, appropriate dimensions C and Z are determined according to the amount of the fibrous tensile body 8. It will be different.
突き当て部63(折り返し部)は、本体部40の段差部425とキャップ50の前端面50Bとで構成されている。突き当て部63は、本体部40の段差部425とキャップ50の前端面50Bの間で繊維状抗張力体8を折り返す機能を有している。これにより、繊維状抗張力体8の引き留め力(第1嵌合部61及び第2嵌合部62による繊維状抗張力体8の把持力)が向上する。
The abutment portion 63 (folded back portion) is configured by the step portion 425 of the main body portion 40 and the front end surface 50 B of the cap 50. The butting portion 63 has a function of turning back the fibrous tensile body 8 between the step portion 425 of the main body portion 40 and the front end surface 50 B of the cap 50. As a result, the holding force of the fibrous tensile body 8 (the gripping force of the fibrous tensile body 8 by the first fitting portion 61 and the second fitting portion 62) is improved.
また、本体部40の段差部425とキャップ50の前端面50Bとにより繊維状抗張力体8を挟み込んでもよい(押圧してもよい)。この場合、繊維状抗張力体8の引き留め力(第1嵌合部61及び第2嵌合部62による繊維状抗張力体8の把持力)がさらに向上する。
Alternatively, the fibrous tensile strength body 8 may be sandwiched (or pressed) by the step 425 of the main body 40 and the front end face 50B of the cap 50. In this case, the holding force of the fibrous tensile member 8 (gripping force of the fibrous tensile member 8 by the first fitting portion 61 and the second fitting portion 62) is further improved.
なお、光コード6の種類に応じて繊維状抗張力体8の量が異なるため、光コード6の種類に応じて、適切な寸法B,Yが異なる。
In addition, since the amount of the fibrous tensile member 8 differs according to the type of the optical code 6, the appropriate dimensions B and Y differ according to the type of the optical code 6.
寸法Bは、キャップ50の前端面50Bと係合穴53Aとの間の長さである。
Dimension B is the length between the front end surface 50B of the cap 50 and the engagement hole 53A.
寸法Yは、把持部40Aの段差部425とキャップ用爪部422との間の長さである。
The dimension Y is a length between the step 425 of the grip 40A and the cap claw 422.
光ケーブル3の場合、寸法Yが寸法Bよりもやや大きければよい(同じくらいでよい)。光コード6の場合、本体部40の段差部425とキャップ50の前端面50Bの間に繊維状抗張力体8を配置する(あるいは挟み込む)ため、繊維状抗張力体8の量に応じて、適切な寸法B,Yが異なることになる。
In the case of the optical cable 3, the dimension Y may be slightly larger than the dimension B (the same amount may be sufficient). In the case of the optical cord 6, the fiber tensile strength body 8 is disposed (or sandwiched) between the step 425 of the main body 40 and the front end surface 50B of the cap 50. The dimensions B and Y will be different.
よって、光ケーブル(角型光ケーブル3、丸型光ケーブル6)の種類に応じた本体部40とキャップ50をそれぞれ用意し、適宜選択して用いるようにすることで、光ケーブルの種類に対する対応性が高くなる。
Therefore, by preparing the main body 40 and the cap 50 according to the type of the optical cable (square optical cable 3 and round optical cable 6) and selecting them appropriately, the adaptability to the type of optical cable is enhanced. .
なお、本実施形態では、光コード6の場合に、繊維状抗張力体8を挟み込む部位(第1嵌合部61、第2嵌合部62、突き当て部63)に、摩擦力を増す、滑り止め剤を塗布している。滑り止め剤としては、例えば、合成樹脂を有機溶剤に混ぜたものを使用できる。滑り止め剤をスプレー等で塗布後、有機溶剤の発揮により残った樹脂が滑り止めの作用を奏する。これにより、繊維状抗張力体8の滑りを防止でき、引き留め力を高めることができる。
In the present embodiment, in the case of the optical cord 6, the frictional force is increased or slippage occurs in the portion (the first fitting portion 61, the second fitting portion 62, the butting portion 63) for sandwiching the fibrous tensile body 8 Applying a stopper. As the anti-slip agent, for example, a mixture of a synthetic resin and an organic solvent can be used. After the anti-slip agent is applied by a spray or the like, the remaining resin acts as a non-slip by the exertion of the organic solvent. Thereby, the slip of the fibrous tensile member 8 can be prevented, and the holding force can be increased.
<光コネクタの組立方法1>
図4A、図4B、図4Cは、丸型光ケーブル6(光コード6)を用いた場合の光コネクタ100の組立方法の説明図である。なお、図4C(c)のみ上下を逆にして示している。 <Method 1 of assembling the optical connector>
FIG. 4A, FIG. 4B, and FIG. 4C are explanatory drawings of the assembling method of theoptical connector 100 at the time of using the round optical cable 6 (optical code 6). Note that only FIG. 4C (c) is shown upside down.
図4A、図4B、図4Cは、丸型光ケーブル6(光コード6)を用いた場合の光コネクタ100の組立方法の説明図である。なお、図4C(c)のみ上下を逆にして示している。 <
FIG. 4A, FIG. 4B, and FIG. 4C are explanatory drawings of the assembling method of the
本実施形態では、光コネクタ100の組み立ての際に組立工具70を使用する。最初に、組立工具70の構成について簡単に説明する。
In the present embodiment, an assembly tool 70 is used when assembling the optical connector 100. First, the configuration of the assembly tool 70 will be briefly described.
組立工具70は、光コネクタ100の組み立て時に用いられる工具である。本実施形態の組立工具70は、光ケーブル3及び光コード6の両方に対応している。組立工具70は、前側部材80と後側部材90とを有する。前側部材80及び後側部材90は、回転軸(不図示)を中心にして相対的に回転可能に連結されている。
The assembly tool 70 is a tool used when assembling the optical connector 100. The assembly tool 70 of the present embodiment corresponds to both the optical cable 3 and the optical code 6. The assembly tool 70 has a front side member 80 and a rear side member 90. The front side member 80 and the rear side member 90 are connected to be relatively rotatable around a rotation axis (not shown).
前側部材80は、光ファイバ(光ケーブル3から口出しした光ファイバ4や光コード6から口出しした光ファイバ7)の加工時に、把持部材30を保持する機能を有する。
The front side member 80 has a function of holding the holding member 30 when processing an optical fiber (the optical fiber 4 extracted from the optical cable 3 and the optical fiber 7 extracted from the optical cord 6).
後側部材90は、光コネクタ本体10(詳しくは固定部152)に把持部材30を挿入する際に、光ケーブルを保持する機能を有する。光ケーブル3及び光コード6の両方を保持可能である。後側部材90は、ケーブル保持部91及び繊維状抗張力体保持部92を有している。
The rear side member 90 has a function of holding the optical cable when the gripping member 30 is inserted into the optical connector main body 10 (specifically, the fixing portion 152). Both the optical cable 3 and the optical code 6 can be held. The rear side member 90 has a cable holding portion 91 and a fibrous tensile strength member holding portion 92.
ケーブル保持部91は、光ケーブル(光ケーブル3、光コード6)を挿入して保持する直線溝状の部位である。
The cable holding portion 91 is a linear groove-shaped portion for inserting and holding an optical cable (the optical cable 3 and the optical cord 6).
繊維状抗張力体保持部92は、光コード6の場合に、把持部材30(本体部40とキャップ50との間)から延び出た繊維状抗張力体8を保持する溝状の部位である。繊維状抗張力体保持部92は、ケーブル保持部91を挟む左右両側にそれぞれ設けられている。
In the case of the optical cord 6, the fibrous tensile member holding portion 92 is a groove-like portion that holds the fibrous tensile member 8 extending from the gripping member 30 (between the main body 40 and the cap 50). The fibrous tensile strength member holding portions 92 are respectively provided on the left and right sides sandwiching the cable holding portion 91.
以下、図4A、図4B、図4Cを参照しつつ、丸型光ケーブル6(光コード6)を用いた場合の光コネクタ100の組み立て方法について説明する。
Hereinafter, an assembling method of the optical connector 100 in the case of using the round optical cable 6 (optical cord 6) will be described with reference to FIGS. 4A, 4B, and 4C.
まず、作業者は、光コード6をキャップ50の挿通穴55に差し込む(図4A(a))。こうして、光コード6をキャップ50に挿入する(図4A(b))。
First, the worker inserts the optical cord 6 into the insertion hole 55 of the cap 50 (FIG. 4A (a)). Thus, the optical code 6 is inserted into the cap 50 (FIG. 4A (b)).
次に、作業者は、光コード6の先端側(前側)の外被を除去し、光ファイバ7及び繊維状抗張力体8を口出しする(図4A(c))。
Next, the worker removes the jacket on the tip end side (front side) of the optical cord 6 and picks up the optical fiber 7 and the fibrous tension member 8 (FIG. 4A (c)).
次に、作業者は、光コード6を把持部材30の本体部40にセットする(図4A(d))。本体部40の把持部40Aの一対の側壁部42の間には光コード6の外被の先端部分を収容するとともに、スリット423を介して、側壁部42の内側から側壁部42の外側に繊維状抗張力体8を出す(図4A(e))。また、本体部40の挿通部40Bには口出しした光ファイバ7を挿通させる。
Next, the worker sets the optical cord 6 in the main body 40 of the gripping member 30 (FIG. 4A (d)). The distal end portion of the jacket of the optical cord 6 is accommodated between the pair of side walls 42 of the grip 40A of the main body 40, and fibers are formed from the inside of the side wall 42 to the outside of the side wall 42 via the slits 423. The tensile strength body 8 is released (FIG. 4A (e)). The inserted optical fiber 7 is inserted into the insertion portion 40B of the main body 40.
次に、作業者は、キャップ50を本体部40の把持部40Aに取り付ける(図4A(f))。
Next, the worker attaches the cap 50 to the grip 40A of the main body 40 (FIG. 4A (f)).
キャップ50を前側にスライドさせることにより、キャップ50の係合穴53Aが、把持部40Aのキャップ用爪部422と係合し、本体部40にキャップ50が固定される。このキャップ50の取り付けにより、繊維状抗張力体8は本体部40の把持部外面424とキャップ50のキャップ内面53Bとの間(第1嵌合部61:図3B参照)に挟み込まれる。また、繊維状抗張力体8は段差部425とキャップ内面53Bとの間(突き当て部63:図3B参照)に挟み込まれる。本実施形態では、キャップ50を前側にスライドさせることにより、本体部40の把持部外面424とキャップ50のキャップ内面53Bとの間に繊維状抗張力体8を挟み込んでいるので、繊維状抗張力体8をツイストしないように引き留めることができる。
By sliding the cap 50 forward, the engagement hole 53A of the cap 50 engages with the cap claw 422 of the grip 40A, and the cap 50 is fixed to the main body 40. By the attachment of the cap 50, the fibrous tensile body 8 is sandwiched between the grip outer surface 424 of the main body 40 and the cap inner surface 53B of the cap 50 (first fitting portion 61: see FIG. 3B). In addition, the fibrous tensile member 8 is sandwiched between the step 425 and the cap inner surface 53B (abutment portion 63: see FIG. 3B). In the present embodiment, the fibrous tensile strength body 8 is sandwiched between the grip outer surface 424 of the main body 40 and the cap inner surface 53 B of the cap 50 by sliding the cap 50 forward. Can be held to not twist.
さらに、作業者は、本体部40とキャップ50の間から出た繊維状抗張力体8を後方に(キャップ外面53Cに向けて)折り返す。
Furthermore, the worker folds back the fibrous tensile member 8 coming out between the main body 40 and the cap 50 (toward the cap outer surface 53C).
次に、作業者は、光コード6を組立工具70の後側部材90に取り付ける(図4B(a))。光コード6は、後側部材90のケーブル保持部91に配置し、繊維状抗張力体8は、後側部材90の繊維状抗張力体保持部92に配置する(図4B(b))。なお、このとき、組立工具70の前側部材80は、後側部材90に対して回転されており、下側に傾斜した状態となっている。
Next, the worker attaches the light cord 6 to the rear member 90 of the assembly tool 70 (FIG. 4B (a)). The optical cord 6 is disposed in the cable holding portion 91 of the rear side member 90, and the fibrous tensile body 8 is arranged in the fibrous tensile body holding portion 92 of the rear side member 90 (FIG. 4B (b)). At this time, the front side member 80 of the assembly tool 70 is rotated with respect to the rear side member 90, and is inclined downward.
次に、作業者は、前側部材80を上向きに回転させ(図4B(c))、前側部材80に把持部材30を保持させる。このとき、光コード6から口出しした光ファイバ7が、前側部材80の前端よりも前に出る。作業者は、その光ファイバ7の端部の被覆を除去し、光ファイバ7の端部をカットする。
Next, the worker rotates the front side member 80 upward (FIG. 4B (c)) and causes the front side member 80 to hold the gripping member 30. At this time, the optical fiber 7 out of the optical cord 6 comes out before the front end of the front member 80. The operator removes the coating on the end of the optical fiber 7 and cuts the end of the optical fiber 7.
次に、作業者は、前側部材80を下向きに回転させて把持部材30から前側部材80を外す。そして、把持部材30を光コネクタ本体10の固定部152に挿入する(図4B(d))。挿入していくと、把持部材30の爪部441が後側ハウジング15の係止部15Bに引っ掛かり、把持部材30が光コネクタ本体10に固定される(図4B(e))。この把持部材30の挿入により、光ファイバ7の端部がメカニカルスプライス部12の開口部12Aに挿入され、フェルール11の内蔵ファイバと突き合わせ接続されることになる。
Next, the worker rotates the front side member 80 downward to remove the front side member 80 from the gripping member 30. Then, the gripping member 30 is inserted into the fixing portion 152 of the optical connector main body 10 (FIG. 4B (d)). As it is inserted, the claw portion 441 of the gripping member 30 is caught on the locking portion 15B of the rear housing 15, and the gripping member 30 is fixed to the optical connector main body 10 (FIG. 4B (e)). By the insertion of the holding member 30, the end of the optical fiber 7 is inserted into the opening 12A of the mechanical splice portion 12, and is butt-connected to the internal fiber of the ferrule 11.
また、この挿入により、ハウジング13(後側ハウジング15)の固定部152の内壁面15Aと、キャップ外面53Cとの第2嵌合部62が形成され、繊維状抗張力体8は、この第2嵌合部62の間(内壁面15Aとキャップ外面53Cとの間)に挟まれる(図3B参照)。
Further, by this insertion, the second fitting portion 62 of the inner wall surface 15A of the fixing portion 152 of the housing 13 (the rear housing 15) and the cap outer surface 53C is formed, and the fibrous tension member 8 is the second fitting. It is sandwiched between the coupling portions 62 (between the inner wall surface 15A and the cap outer surface 53C) (see FIG. 3B).
次に作業者は、光コネクタ本体10から介挿部材19を外す(図4B(f))。介挿部材19のくさび(不図示)が引き抜かれることにより、メカニカルスプライス部12の隙間が閉じ、光コード6の光ファイバ7と内蔵ファイバ(不図示)とが突き合わされた状態で固定される。
Next, the worker removes the insertion member 19 from the optical connector main body 10 (FIG. 4B (f)). When the wedge (not shown) of the insertion member 19 is pulled out, the gap of the mechanical splice portion 12 is closed, and the optical fiber 7 of the optical cord 6 and the built-in fiber (not shown) are fixed in a state where they abut.
次に作業者は、組立工具70を取り外し(図4C(a))、光コネクタ本体10から延び出ている繊維状抗張力体8をカットする(図4C(b))。これにより、光コネクタ100の組み立て作業が完了する(図4C(c))。
Next, the worker removes the assembly tool 70 (FIG. 4C (a)), and cuts the fibrous tensile body 8 extending from the optical connector body 10 (FIG. 4C (b)). Thus, the assembling operation of the optical connector 100 is completed (FIG. 4C (c)).
<光コネクタの組立方法2>
図5A、図5Bは、角型光ケーブル3(光ケーブル3)を用いた場合の光コネクタ100の組立方法の説明図である。なお、図5B(f)のみ上下を逆にして示している。
この組立方法においても、組立工具70を使用する。 <Method 2 of assembling the optical connector>
FIG. 5A and FIG. 5B are explanatory drawings of the assembling method of theoptical connector 100 at the time of using the square-shaped optical cable 3 (optical cable 3). Note that only FIG. 5B (f) is shown upside down.
Also in this assembly method, anassembly tool 70 is used.
図5A、図5Bは、角型光ケーブル3(光ケーブル3)を用いた場合の光コネクタ100の組立方法の説明図である。なお、図5B(f)のみ上下を逆にして示している。
この組立方法においても、組立工具70を使用する。 <Method 2 of assembling the optical connector>
FIG. 5A and FIG. 5B are explanatory drawings of the assembling method of the
Also in this assembly method, an
まず、作業者は、光ケーブル3の先端の外被を除去して光ファイバ4を口出しする(図5A(a))。そして、光ケーブル3を、キャップ50の挿通穴55に差し込んでキャップ50に挿入する(図5A(b))。
First, the worker removes the jacket of the tip of the optical cable 3 and opens the optical fiber 4 (FIG. 5A (a)). Then, the optical cable 3 is inserted into the insertion hole 55 of the cap 50 and inserted into the cap 50 (FIG. 5A (b)).
次に、作業者は、光ケーブル3を本体部40にセットする(図5A(c))。本体部40の把持部40Aの一対の側壁部42の間には光ケーブル3の外被の先端部分を収容させる。これにより、一対の側壁部42の突起部421が光ケーブル3の外被に食い込み、光ケーブル3が把持される。なお、このとき、前述したように、一対の側壁部42の間隔が広がる(図3Aの寸法Xが大きくなる)ことがある。また、挿通部40Bには、口出しした光ファイバ4を挿通させる。
Next, the worker sets the optical cable 3 in the main body 40 (FIG. 5A (c)). The distal end portion of the jacket of the optical cable 3 is accommodated between the pair of side wall portions 42 of the grip portion 40A of the main body portion 40. Thereby, the protrusions 421 of the pair of side wall portions 42 bite into the sheath of the optical cable 3 and the optical cable 3 is gripped. At this time, as described above, the distance between the pair of side wall portions 42 may increase (the dimension X in FIG. 3A may increase). In addition, the inserted optical fiber 4 is inserted into the insertion portion 40B.
次に、作業者は、本体部40の把持部40Aにキャップ50を取り付ける(図5A(d))。キャップ50を前側にスライドさせることにより、キャップ50の係合穴53Aが、把持部40Aのキャップ用爪部422と係合し、本体部40にキャップ50が固定される。このとき、キャップ50のキャップ内面53Bで、本体部40の把持部外面424が外側から押圧(圧迫)され、一対の側壁部42が内側に変形する。このため、突起部421が光ケーブル3の外被により食い込むようになり(食い込みが大きくなり)、把持力が向上する。特に、光ケーブル3を本体部40にセットする際に一対の側壁部42の間隔が広がっていた場合には、キャップ50をスライドさせたときに、光ケーブル3の外被への突起部421の食い込みが大きくなる。なお、キャップ50を取り付け後、左右のキャップ外面53Cが膨らむ(図3Aの寸法Cが大きくなる)ことがある。
Next, the worker attaches the cap 50 to the grip portion 40A of the main body 40 (FIG. 5A (d)). By sliding the cap 50 forward, the engagement hole 53A of the cap 50 engages with the cap claw 422 of the grip 40A, and the cap 50 is fixed to the main body 40. At this time, the grip outer surface 424 of the main body 40 is pressed (pressed) from the outer side by the cap inner surface 53B of the cap 50, and the pair of side wall portions 42 is deformed inward. As a result, the projection 421 bites into the sheath of the optical cable 3 (the biting becomes large), and the gripping force is improved. In particular, when the distance between the pair of side wall portions 42 is increased when setting the optical cable 3 in the main body portion 40, when the cap 50 is slid, the protrusion 421 of the optical cable 3 in the outer cover growing. In addition, after attaching the cap 50, the cap outer surface 53C on either side may swell (the dimension C of FIG. 3A becomes large).
次に、作業者は、光ケーブル3を組立工具70の後側部材90に取り付ける(図5A(e))。光ケーブル3は後側部材90のケーブル保持部91に配置させる(図5A(f))。なお、このとき、組立工具70の前側部材80は、後側部材90に対して回転されており、下側に傾斜した状態となっている。
Next, the worker attaches the optical cable 3 to the rear member 90 of the assembly tool 70 (FIG. 5A (e)). The optical cable 3 is disposed in the cable holding portion 91 of the rear side member 90 (FIG. 5A (f)). At this time, the front side member 80 of the assembly tool 70 is rotated with respect to the rear side member 90, and is inclined downward.
次に、作業者は、組立工具70の前側部材80を上向きに回転させ、前側部材80に把持部材30を保持させる(図5B(a))。このとき、光ケーブル3から口出しした光ファイバ4が、前側部材80の前端よりも前に出る。作業者は、その光ファイバ4の端部の被覆を除去し、光ファイバ4の端部をカットする。
Next, the operator rotates the front side member 80 of the assembly tool 70 upward to hold the gripping member 30 on the front side member 80 (FIG. 5B (a)). At this time, the optical fiber 4 out of the optical cable 3 comes out before the front end of the front side member 80. The operator removes the coating on the end of the optical fiber 4 and cuts the end of the optical fiber 4.
次に、作業者は、前側部材80を下向きに回転させて把持部材30から前側部材80を外す。そして、把持部材30を光コネクタ本体10の固定部152に挿入する(図5B(b))。挿入していくと、把持部材30の爪部441が後側ハウジング15の係止部15Bに引っ掛かり、把持部材30が光コネクタ本体10に固定される固定される(図5B(c))。この把持部材30の挿入により、光ファイバ4の端部がメカニカルスプライス部12の開口部12Aに挿入され、フェルール11の内蔵ファイバと突き合わせ接続されることになる。
Next, the worker rotates the front side member 80 downward to remove the front side member 80 from the gripping member 30. Then, the gripping member 30 is inserted into the fixing portion 152 of the optical connector main body 10 (FIG. 5B (b)). As it is inserted, the claws 441 of the gripping member 30 are caught on the locking portions 15B of the rear housing 15, and the gripping member 30 is fixed to the optical connector main body 10 (FIG. 5B (c)). By the insertion of the holding member 30, the end of the optical fiber 4 is inserted into the opening 12A of the mechanical splice portion 12, and is butt-connected to the internal fiber of the ferrule 11.
また、この挿入により、ハウジング13(後側ハウジング15)の固定部152の内壁面15Aと、キャップ外面53Cとの第2嵌合部62が形成され、内壁面15Aによって、キャップ50の側板部53が内側に押圧される。これにより、把持部40Aの一対の側壁部42がさらに内側に押圧される。よって、光ケーブル3の把持力をさらに向上させることができる。特に、キャップ50の左右のキャップ外面53Cが膨らんでいる場合であっても、固定部152の内壁面15Aによって、キャップ50の左右の側板部53や把持部40Aの一対の側壁部42が内側に押圧される。本実施形態では、固定部152の内壁面15Aによる内側への押圧力が小さくても、キャップ50のキャップ内面53Bで、本体部40の把持部外面424を外側から押圧しているので、十分な把持力を得ることができる。つまり、後側ハウジング15の固定部152の肉厚が薄く、後側ハウジング15による把持部材30の押圧力が弱くても、把持部材30による光ケーブル3の把持力を向上させることができる。
Further, by this insertion, the second fitting portion 62 of the inner wall surface 15A of the fixed portion 152 of the housing 13 (rear housing 15) and the cap outer surface 53C is formed, and the inner wall surface 15A forms the side plate portion 53 of the cap 50. Is pressed inward. Thus, the pair of side wall portions 42 of the grip portion 40A is further pressed inward. Thus, the gripping force of the optical cable 3 can be further improved. In particular, even when the left and right cap outer surfaces 53C of the cap 50 are expanded, the left and right side plate portions 53 of the cap 50 and the pair of side wall portions 42 of the grip portion 40A are inward by the inner wall surface 15A of the fixed portion 152. It is pressed. In the present embodiment, even if the pressing force by the inner wall surface 15A of the fixing portion 152 to the inside is small, the cap inner surface 53B of the cap 50 presses the grip outer surface 424 of the main body 40 from the outside. The gripping force can be obtained. That is, even if the thickness of the fixing portion 152 of the rear housing 15 is thin and the pressing force of the gripping member 30 by the rear housing 15 is weak, the gripping force of the optical cable 3 by the gripping member 30 can be improved.
次に作業者は、光コネクタ本体10から介挿部材19を外す(図5B(d))。介挿部材19のくさび(不図示)が引き抜かれることにより、メカニカルスプライス部12の隙間が閉じ、光コード6の光ファイバ7と内蔵ファイバ(不図示)とが突き合わされた状態で固定される。
Next, the worker removes the insertion member 19 from the optical connector main body 10 (FIG. 5B (d)). When the wedge (not shown) of the insertion member 19 is pulled out, the gap of the mechanical splice portion 12 is closed, and the optical fiber 7 of the optical cord 6 and the built-in fiber (not shown) are fixed in a state where they abut.
次に作業者は、組立工具70を取り外す(図5B(e))。これにより、光コネクタ100の組み立て作業が完了する(図5B(f))。
Next, the worker removes the assembly tool 70 (FIG. 5B (e)). Thus, the assembly operation of the optical connector 100 is completed (FIG. 5B (f)).
<小括>
上記の本実施形態によれば、光コネクタ100は、光ファイバ7を有する光コード6(光ケーブルに相当)を把持する把持部材30と、把持部材30を固定する固定部152を有する後側ハウジング15(ハウジング13)を備えている。また、把持部材30は、一対の側壁部42を有する本体部40と、本体部40に取り付けるキャップ50を有している。一対の側壁部42には、光コード6の繊維状抗張力体8を内側から外側に出すためのスリット423が形成されている。そして、図4A(f)に示すように、本体部40に対してキャップ50を前側にスライドさせることによって、側壁部42の把持部外面424(外面に相当)とキャップ50のキャップ内面53B(内面に相当)との間に繊維状抗張力体8を挟み込んだ状態で、本体部40にキャップ50を取り付けている(図3B参照)。これにより、繊維状抗張力体8をツイストさせずに引き留めることができる。 <Summary>
According to the above-described embodiment, theoptical connector 100 includes the holding member 30 for holding the optical cord 6 (corresponding to an optical cable) having the optical fiber 7 and the rear housing 15 having the fixing portion 152 for fixing the holding member 30. (Housing 13) is provided. The gripping member 30 also has a main body 40 having a pair of side walls 42 and a cap 50 attached to the main body 40. The pair of side wall portions 42 is formed with a slit 423 for drawing out the fibrous tensile strength body 8 of the optical cord 6 from the inside to the outside. Then, as shown in FIG. 4A (f), by sliding the cap 50 forward with respect to the main body 40, the grip outer surface 424 (corresponding to the outer surface) of the side wall 42 and the cap inner surface 53B (inner surface) of the cap 50 (See FIG. 3B) with the fibrous tensile member 8 interposed therebetween. Thereby, the fibrous tensile member 8 can be retained without being twisted.
上記の本実施形態によれば、光コネクタ100は、光ファイバ7を有する光コード6(光ケーブルに相当)を把持する把持部材30と、把持部材30を固定する固定部152を有する後側ハウジング15(ハウジング13)を備えている。また、把持部材30は、一対の側壁部42を有する本体部40と、本体部40に取り付けるキャップ50を有している。一対の側壁部42には、光コード6の繊維状抗張力体8を内側から外側に出すためのスリット423が形成されている。そして、図4A(f)に示すように、本体部40に対してキャップ50を前側にスライドさせることによって、側壁部42の把持部外面424(外面に相当)とキャップ50のキャップ内面53B(内面に相当)との間に繊維状抗張力体8を挟み込んだ状態で、本体部40にキャップ50を取り付けている(図3B参照)。これにより、繊維状抗張力体8をツイストさせずに引き留めることができる。 <Summary>
According to the above-described embodiment, the
また、本実施形態によれば、図4B(d)に示すように、後側ハウジング15の固定部152に対して、把持部材30を前側にスライドさせることによって、キャップ50のキャップ外面53C(外面に相当)と固定部152の内壁面15A(内面に相当)との間に繊維状抗張力体8を挟み込んだ状態で固定部152に把持部材30を固定している(図3B参照)。これにより、繊維状抗張力体8の引き留め力を高めることができる。
Further, according to the present embodiment, as shown in FIG. 4B (d), the cap outer surface 53C (the outer surface of the cap 50 is slid by sliding the gripping member 30 forward with respect to the fixed portion 152 of the rear housing 15). And the inner surface 15A (corresponding to the inner surface) of the fixing portion 152, the gripping member 30 is fixed to the fixing portion 152 in a state in which the fibrous tensile member 8 is sandwiched (see FIG. 3B). Thereby, the retention force of the fibrous tension member 8 can be increased.
また、本実施形態によれば、本体部40に段差部425が形成されており、段差部425とキャップ50の前端面50B(端面に相当)との間において、側壁部42の把持部外面424とキャップ50のキャップ内面53Bとの間で挟まれた繊維状抗張力体8が折り返されて、キャップ50のキャップ外面53Cと固定部152の内壁面15Aとの間で繊維状抗張力体8が挟み込まれている。これにより、繊維状抗張力体8の把持力をより高めることができる。
Further, according to the present embodiment, the stepped portion 425 is formed in the main body portion 40, and the grip outer surface 424 of the side wall portion 42 is formed between the stepped portion 425 and the front end surface 50B (corresponding to the end surface) of the cap 50. And the cap inner surface 53B of the cap 50 is folded back, and the fibrous tensile body 8 is sandwiched between the cap outer surface 53C of the cap 50 and the inner wall surface 15A of the fixing portion 152. ing. Thereby, the gripping force of the fibrous tensile member 8 can be further enhanced.
また、本実施形態によれば、段差部425とキャップ50の前端面50Bとの間において、折り返された繊維状抗張力体8が挟み込まれている。これにより、繊維状抗張力体8の引き留め力をさらに高めることができる。
Further, according to the present embodiment, the folded fiber-like tensile strength body 8 is sandwiched between the stepped portion 425 and the front end surface 50B of the cap 50. Thereby, the retention force of the fibrous tensile body 8 can be further enhanced.
また、本実施形態によれば、繊維状抗張力体8を挟み込む部位(第1嵌合部61、第2嵌合部62、突き当て部63)に、摩擦力を増す、滑り止め剤が塗布されている。これにより、繊維状抗張力体8の滑りを防止でき、引き留め力を高めることができる。
Further, according to the present embodiment, the anti-slip agent is applied to the portion (the first fitting portion 61, the second fitting portion 62, the abutment portion 63) for sandwiching the fibrous tensile member 8 to increase the frictional force. ing. Thereby, the slip of the fibrous tensile member 8 can be prevented, and the holding force can be increased.
また、本実施形態によれば、把持部材30の本体部40はキャップ用爪部422(キャップ用固定部に相当)を有し、キャップ50はキャップ用爪部422と係合する係合穴53A(キャップ用固定部に相当)を有している。これにより、側壁部42の把持部外面424とキャップ50のキャップ内面53Bとの間に繊維状抗張力体8を挟み込んだ状態で本体部40とキャップ50とを固定することができる。
Further, according to the present embodiment, the main body 40 of the gripping member 30 has the cap claw 422 (corresponding to the cap fixing part), and the cap 50 engages with the cap claw 422 in the engagement hole 53A. (Corresponding to a fixing portion for a cap). Thereby, the main body 40 and the cap 50 can be fixed in a state where the fibrous tensile strength body 8 is sandwiched between the grip outer surface 424 of the side wall 42 and the cap inner surface 53B of the cap 50.
また、本実施形態によれば、本体部40は爪部441(係合部に相当)を有し、後側ハウジング15は爪部441と係合する係止部15B(係合部に相当)を有している。これにより、本体部40と後側ハウジング15を固定することができる。
Further, according to the present embodiment, the main body portion 40 has the claw portion 441 (corresponding to the engaging portion), and the rear housing 15 engages with the claw portion 441 (corresponding to the engaging portion) have. Thereby, the main body 40 and the rear housing 15 can be fixed.
また、本実施形態によれば、一対の側壁部42の内面に、内側に突出する突起部421が形成されている。これにより、光コード6を一対の側壁部42の間に収容したときに、光コード6の外被に突起部421を食い込ませることができ、概ね固定することができる。特に、光ケーブル3の場合に把持力を高めることができる。
Further, according to the present embodiment, the protrusions 421 protruding inward are formed on the inner surfaces of the pair of side wall portions 42. Thereby, when the light cord 6 is accommodated between the pair of side wall portions 42, the projection 421 can be bitten into the jacket of the light cord 6 and can be generally fixed. In particular, in the case of the optical cable 3, the gripping force can be increased.
===第2実施形態===
図6は、第2実施形態のキャップ50の構成の説明図である。 === Second Embodiment ===
FIG. 6 is an explanatory view of the configuration of thecap 50 of the second embodiment.
図6は、第2実施形態のキャップ50の構成の説明図である。 === Second Embodiment ===
FIG. 6 is an explanatory view of the configuration of the
第2実施形態では、把持部材30(本体部40)に対して、4つのキャップ50(501~504とする)が用意されている。この4つのキャップ50(501~504)は、例えば樹脂による一体成形にて形成されており、切り離して使用することができる。
In the second embodiment, four caps 50 (501 to 504) are prepared for the gripping member 30 (main body 40). The four caps 50 (501 to 504) are formed, for example, by resin integral molding and can be used separately.
各キャップ50(501~504)は、光ケーブル3や光コード6の種類(外形)に応じて形状(前述の寸法A,B,C)や挿通穴55の大きさなどが定められている。
The shapes (dimensions A, B, and C described above) of the caps 50 (501 to 504) are determined according to the type (outer shape) of the optical cable 3 and the optical cord 6, the size of the insertion hole 55, and the like.
例えば、本実施形態の場合、キャップ501は、3.1×2.0mmの角型光ケーブル3に適合し、キャップ502は2.0×1.6mmの角型光ケーブル3に適合している。また、キャップ503は、直径2mmの丸型光ケーブル6(光コード6)に適合し、キャップ504は、直径3mmの丸型光ケーブル6に適合している。
For example, in the case of the present embodiment, the cap 501 is adapted to the 3.1 × 2.0 mm square optical cable 3 and the cap 502 is adapted to the 2.0 × 1.6 mm square optical cable 3. Also, the cap 503 is adapted to the round optical cable 6 (optical code 6) of 2 mm in diameter, and the cap 504 is adapted to the round optical cable 6 of 3 mm in diameter.
作業者は、光コネクタ100に用いる光ケーブル(光ケーブル3、光コード6)に対応したものを選択して使用することができる。
The worker can select and use one corresponding to the optical cable (optical cable 3, optical cord 6) used for the optical connector 100.
このように、形状の異なる複数(ここでは4つ)のキャップ50を一体成形によって形成することにより、光ケーブルの種類に対する対応性を高めることができ、また、コストを低減することができる。
As described above, by forming the plurality (four in this case) of caps 50 having different shapes by integral molding, the adaptability to the type of optical cable can be enhanced, and the cost can be reduced.
===第3実施形態===
図7は、第3実施形態の把持部材30の説明図である。 === Third Embodiment ===
FIG. 7 is an explanatory view of the grippingmember 30 of the third embodiment.
図7は、第3実施形態の把持部材30の説明図である。 === Third Embodiment ===
FIG. 7 is an explanatory view of the gripping
前述したように本実施形態の光コネクタ100は小型のLC形光コネクタであるので、把持部材30に用いられるキャップ50は非常にサイズが小さい。このためキャップ50を紛失するおそれがある。
As described above, since the optical connector 100 of the present embodiment is a small LC type optical connector, the cap 50 used for the gripping member 30 is very small in size. Therefore, the cap 50 may be lost.
そこで、第3実施形態では、図7に示すように、把持部材30の本体部40とキャップ50とを予め連結部32で連結している。光コネクタ100の組み立て時には、連結部32を切断して、本体部40とキャップ50を切り離す。
これにより、キャップ50を紛失しにくくすることができる。 So, in 3rd Embodiment, as shown in FIG. 7, the main-body part 40 of the holding member 30 and the cap 50 are connected by the connection part 32 previously. When assembling the optical connector 100, the connecting portion 32 is cut to separate the main body portion 40 and the cap 50 from each other.
Thereby, thecap 50 can be made difficult to lose.
これにより、キャップ50を紛失しにくくすることができる。 So, in 3rd Embodiment, as shown in FIG. 7, the main-
Thereby, the
===第4実施形態===
前述の光コネクタ100では、キャップ50は把持部材30の本体部40に固定され、キャップ50の固定された本体部40(把持部材30)がハウジング13(後側ハウジング15の固定部152に固定されていた。但し、キャップ50が把持部材30の本体部40に直接固定されていなくても良い。 === Fourth Embodiment ===
In the above-describedoptical connector 100, the cap 50 is fixed to the main body 40 of the gripping member 30, and the main body 40 (gripping member 30) to which the cap 50 is fixed is fixed to the fixing portion 152 of the housing 13 (rear housing 15). However, the cap 50 may not be directly fixed to the main body 40 of the gripping member 30.
前述の光コネクタ100では、キャップ50は把持部材30の本体部40に固定され、キャップ50の固定された本体部40(把持部材30)がハウジング13(後側ハウジング15の固定部152に固定されていた。但し、キャップ50が把持部材30の本体部40に直接固定されていなくても良い。 === Fourth Embodiment ===
In the above-described
例えば、ハウジング13(後側ハウジング15)の固定部152にキャップ用係合穴(キャップ用固定部に相当)が形成され、キャップ50の側板部53の外面にキャップ側爪部(キャップ用固定部に相当)が形成されていてもよい。そして、キャップ用係合穴にキャップ側爪部が係合することによって、把持部材30(本体部40及びキャップ50)がハウジング13の固定部152に固定されても良い。
For example, a cap engaging hole (corresponding to a cap fixing portion) is formed in the fixing portion 152 of the housing 13 (rear housing 15), and a cap side claw portion (cap fixing portion) is formed on the outer surface of the side plate portion 53 of the cap 50. ) May be formed. Then, the gripping member 30 (the main body 40 and the cap 50) may be fixed to the fixing portion 152 of the housing 13 by engaging the cap side claws with the cap engagement holes.
===その他===
上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更・改良され得ると共に、本発明には、その等価物が含まれることは言うまでもない。 === Others ===
The above embodiments are for the purpose of facilitating the understanding of the present invention, and are not for the purpose of limiting the present invention. It goes without saying that the present invention can be modified and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.
上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更・改良され得ると共に、本発明には、その等価物が含まれることは言うまでもない。 === Others ===
The above embodiments are for the purpose of facilitating the understanding of the present invention, and are not for the purpose of limiting the present invention. It goes without saying that the present invention can be modified and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.
<把持部材30について>
前述の把持部材30は、角型光ケーブル3と丸型光ケーブル6(光コード6)の両方を把持可能に構成されている。但し、把持部材30は、丸型光ケーブル6を把持可能であるが、角型光ケーブル3を把持できない構成でも良い。 <About the grippingmember 30>
The aforementioned grippingmember 30 is configured to be able to grip both the rectangular optical cable 3 and the round optical cable 6 (optical cord 6). However, although the holding member 30 can hold the round optical cable 6, the holding member 30 may not hold the square optical cable 3.
前述の把持部材30は、角型光ケーブル3と丸型光ケーブル6(光コード6)の両方を把持可能に構成されている。但し、把持部材30は、丸型光ケーブル6を把持可能であるが、角型光ケーブル3を把持できない構成でも良い。 <About the gripping
The aforementioned gripping
また、前述の把持部材30は、複数種類の丸型光ケーブル6を把持可能に構成されているが、特定種類の丸型光ケーブル6だけに対応するような形状であっても良い。
Moreover, although the above-mentioned holding member 30 is comprised so that holding of multiple types of round optical cable 6 is possible, it may be a shape which respond | corresponds only to the specific type of round optical cable 6. FIG.
3 光ケーブル(角型光ケーブル)、4 光ファイバ、
6 光コード(丸型光ケーブル)、7 光ファイバ、8 繊維状抗張力体、
10 光コネクタ本体、11 フェルール、
12 メカニカルスプライス部、12A 開口部、13 ハウジング、
14 前側ハウジング、14A 前側収容部、
15 後側ハウジング、15A 内壁面、15B 係止部、
16 スプリング、19 介挿部材、
30 把持部材、32 連結部、
40 本体部、40A 把持部、40B 挿通部、
41 底壁部、42 側壁部、44 側壁部、
50 キャップ、50A 筒部、50B 前端面、50C 後板部、
51 上板部、52 底板部、53 側板部、
53A 係合穴、53B キャップ内面、53C キャップ外面、
55 挿通穴、
61 第1嵌合部、62 第2嵌合部、63 突き当て部(折り返し部)、
70 組立工具、80 前側部材、90 後側部材、
91 ケーブル保持部、92 繊維状抗張力体保持部、
100 光コネクタ、
421 突起部、422 キャップ用爪部、423 スリット、
424 把持部外面、425 段差部、
441 爪部、
501,502,503,504 キャップ 3 optical cables (square optical cables), 4 optical fibers,
6 optical cord (round optical cable), 7 optical fiber, 8 fiber tensile strength,
10 Optical connector body, 11 ferrules,
12 mechanical splices, 12A openings, 13 housings,
14 front housing, 14A front housing,
15 Rear housing, 15A inner wall surface, 15B locking part,
16 springs, 19 insertion members,
30 gripping members, 32 connecting parts,
40 body part, 40A grip part, 40B insertion part,
41 bottom wall, 42 side walls, 44 side walls,
50 cap, 50A tube, 50B front end face, 50C rear plate,
51 top plate, 52 bottom plate, 53 side plate,
53A engagement hole, 53B cap inner surface, 53C cap outer surface,
55 insertion holes,
61 first fitting portion, 62 second fitting portion, 63 butting portion (folded portion),
70 assembly tools, 80 front members, 90 rear members,
91 cable holder, 92 fibrous tension rod holder,
100 optical connector,
421 projection, claw for 422 cap, 423 slit,
424 grip surface, 425 step,
441 nails,
501, 502, 503, 504 cap
6 光コード(丸型光ケーブル)、7 光ファイバ、8 繊維状抗張力体、
10 光コネクタ本体、11 フェルール、
12 メカニカルスプライス部、12A 開口部、13 ハウジング、
14 前側ハウジング、14A 前側収容部、
15 後側ハウジング、15A 内壁面、15B 係止部、
16 スプリング、19 介挿部材、
30 把持部材、32 連結部、
40 本体部、40A 把持部、40B 挿通部、
41 底壁部、42 側壁部、44 側壁部、
50 キャップ、50A 筒部、50B 前端面、50C 後板部、
51 上板部、52 底板部、53 側板部、
53A 係合穴、53B キャップ内面、53C キャップ外面、
55 挿通穴、
61 第1嵌合部、62 第2嵌合部、63 突き当て部(折り返し部)、
70 組立工具、80 前側部材、90 後側部材、
91 ケーブル保持部、92 繊維状抗張力体保持部、
100 光コネクタ、
421 突起部、422 キャップ用爪部、423 スリット、
424 把持部外面、425 段差部、
441 爪部、
501,502,503,504 キャップ 3 optical cables (square optical cables), 4 optical fibers,
6 optical cord (round optical cable), 7 optical fiber, 8 fiber tensile strength,
10 Optical connector body, 11 ferrules,
12 mechanical splices, 12A openings, 13 housings,
14 front housing, 14A front housing,
15 Rear housing, 15A inner wall surface, 15B locking part,
16 springs, 19 insertion members,
30 gripping members, 32 connecting parts,
40 body part, 40A grip part, 40B insertion part,
41 bottom wall, 42 side walls, 44 side walls,
50 cap, 50A tube, 50B front end face, 50C rear plate,
51 top plate, 52 bottom plate, 53 side plate,
53A engagement hole, 53B cap inner surface, 53C cap outer surface,
55 insertion holes,
61 first fitting portion, 62 second fitting portion, 63 butting portion (folded portion),
70 assembly tools, 80 front members, 90 rear members,
91 cable holder, 92 fibrous tension rod holder,
100 optical connector,
421 projection, claw for 422 cap, 423 slit,
424 grip surface, 425 step,
441 nails,
501, 502, 503, 504 cap
Claims (13)
- 光ファイバを有する光ケーブルを把持する把持部材と、
前記把持部材を固定する固定部を有するハウジングと、
を備えた光コネクタであって、
前記把持部材は、一対の側壁部を有する本体部と、前記本体部に取り付けるキャップとを有し、
前記側壁部には、前記光ケーブルの繊維状抗張力体を内側から外側に出すためのスリットが形成されており、
前記本体部に対して前記キャップをスライドさせることによって、前記側壁部の外面と前記キャップの内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記本体部に前記キャップを取り付け可能である、
ことを特徴とする光コネクタ。 A gripping member for gripping an optical cable having an optical fiber;
A housing having a fixing portion for fixing the gripping member;
An optical connector provided with
The gripping member has a main body having a pair of side walls, and a cap attached to the main body,
The side wall portion is formed with a slit for bringing out the fibrous tensile member of the optical cable from the inside to the outside,
By sliding the cap relative to the main body, the cap can be attached to the main body in a state in which the fibrous tensile body is sandwiched between the outer surface of the side wall and the inner surface of the cap. ,
An optical connector characterized by - 請求項1に記載の光コネクタであって、
前記ハウジングの前記固定部に対して前記把持部材をスライドさせることによって、前記キャップの外面と前記固定部の内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記固定部に前記把持部材を固定可能である、
ことを特徴とする光コネクタ。 The optical connector according to claim 1, wherein
The gripping member is fixed to the fixing portion in a state in which the fibrous tension member is sandwiched between the outer surface of the cap and the inner surface of the fixing portion by sliding the gripping member with respect to the fixing portion of the housing. Can be fixed,
An optical connector characterized by - 請求項2に記載の光コネクタであって、
前記本体部に段差部が形成されており、前記段差部と前記キャップの端面との間において、前記側壁部の外面と前記キャップの内面との間で挟まれた前記繊維状抗張力体が折り返されて、前記キャップの外面と前記固定部の内面との間で前記繊維状抗張力体が挟み込まれる、
ことを特徴とする光コネクタ。 The optical connector according to claim 2, wherein
A stepped portion is formed in the main body portion, and the fibrous tensile strength body sandwiched between the outer surface of the side wall portion and the inner surface of the cap is folded back between the stepped portion and the end surface of the cap. And the fibrous tensile body is sandwiched between the outer surface of the cap and the inner surface of the fixed portion,
An optical connector characterized by - 請求項3に記載の光コネクタであって、
前記段差部と前記キャップの端面との間において、折り返された前記繊維状抗張力体が挟み込まれる、
ことを特徴とする光コネクタ。 The optical connector according to claim 3, wherein
Between the step portion and the end face of the cap, the folded fiber tensile strength body is sandwiched;
An optical connector characterized by - 請求項1~4の何れかに記載の光コネクタであって、
前記繊維状抗張力体を挟み込む部位に、摩擦力を増す、滑り止め剤が塗布されている
ことを特徴とする光コネクタ。 The optical connector according to any one of claims 1 to 4, wherein
An optical connector characterized in that an anti-slip agent is applied to a portion for sandwiching the fibrous tensile member, which increases the frictional force. - 請求項1~5の何れかに記載の光コネクタであって、
前記本体部と前記キャップのそれぞれにキャップ用固定部を有する、
ことを特徴とする光コネクタ。 The optical connector according to any one of claims 1 to 5, wherein
A cap fixing portion on each of the main body portion and the cap;
An optical connector characterized by - 請求項1~6の何れかに記載の光コネクタであって、
前記ハウジングと前記本体部のそれぞれに係合部を有する、
ことを特徴とする光コネクタ。 The optical connector according to any one of claims 1 to 6, wherein
Each of the housing and the main body has an engaging portion,
An optical connector characterized by - 請求項1~7の何れかに記載の光コネクタであって、
前記一対の側壁部の内面に、内側に突出する突起部が形成されている、
ことを特徴とする光コネクタ。 The optical connector according to any one of claims 1 to 7, wherein
An inward projection is formed on the inner surface of the pair of side walls.
An optical connector characterized by - 請求項1~8の何れかに記載の光コネクタであって、
前記光ケーブルの前記繊維状抗張力体の量に応じた前記キャップを複数有する、
ことを特徴とする光コネクタ。 The optical connector according to any one of claims 1 to 8, wherein
Having a plurality of the caps according to the amount of the fibrous tensile member of the optical cable,
An optical connector characterized by - 請求項9に記載の光コネクタであって、
複数の前記キャップは一体成型によって形成されている
ことを特徴とする光コネクタ The optical connector according to claim 9,
An optical connector characterized in that the plurality of caps are formed by integral molding. - 請求項1~8の何れかに記載の光コネクタであって、
前記本体部と前記キャップが予め連結されている
ことを特徴とする光コネクタ。 The optical connector according to any one of claims 1 to 8, wherein
An optical connector, wherein the main body portion and the cap are connected in advance. - 光ファイバを有する光ケーブルを把持する把持部を備えた把持部材であって、
一対の側壁部を有する本体部と、前記本体部に取り付けるキャップとを有し、
前記側壁部には、前記光ケーブルの繊維状抗張力体を内側から外側に出すためのスリットが形成されており、
前記本体部に対して前記キャップをスライドさせることによって、前記側壁部の外面と前記キャップの内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記本体部に前記キャップを取り付け可能である、
ことを特徴とする把持部材。 A gripping member comprising a gripping portion for gripping an optical cable having an optical fiber, comprising:
A main body having a pair of side walls, and a cap attached to the main body;
The side wall portion is formed with a slit for bringing out the fibrous tensile member of the optical cable from the inside to the outside,
By sliding the cap relative to the main body, the cap can be attached to the main body in a state in which the fibrous tensile body is sandwiched between the outer surface of the side wall and the inner surface of the cap. ,
A gripping member characterized by; - 光ケーブルを保持した把持部材を光コネクタの本体部に挿入することによって前記光コネクタを組み立てる光コネクタ製造方法であって、
前記把持部材は、一対の側壁部を有する本体部と、前記本体部に取り付けるキャップとを備えており、
前記本体部の前記一対の側壁部の間に前記光ケーブルを収容するとともに、前記側壁部に形成されたスリットを介して、前記光ケーブルの繊維状抗張力体を前記一対の側壁部の内側から外側に出す工程と、
前記本体部に対して前記キャップをスライドさせることによって、前記側壁部の外面と前記キャップの内面との間に前記繊維状抗張力体を挟み込んだ状態で、前記本体部に前記キャップを取り付ける工程と、
を行うことを特徴とする光コネクタ製造方法。 An optical connector manufacturing method for assembling the optical connector by inserting a holding member holding an optical cable into a main body of the optical connector,
The holding member includes a main body having a pair of side walls, and a cap attached to the main body.
The optical cable is accommodated between the pair of side walls of the main body, and the fibrous tension member of the optical cable is drawn out from the inside to the outside of the pair of side walls through the slits formed in the side wall. Process,
Attaching the cap to the main body in a state in which the fibrous tensile body is held between the outer surface of the side wall and the inner surface of the cap by sliding the cap relative to the main body;
A method of manufacturing an optical connector, comprising:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201880068799.4A CN111247468A (en) | 2017-11-02 | 2018-09-14 | Optical connector, holding member, and method for manufacturing optical connector |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2017-212823 | 2017-11-02 | ||
JP2017212823A JP6823577B2 (en) | 2017-11-02 | 2017-11-02 | Optical connector and manufacturing method of optical connector |
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- 2018-09-14 WO PCT/JP2018/034099 patent/WO2019087585A1/en active Application Filing
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JPS62127507U (en) * | 1986-02-03 | 1987-08-13 | ||
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JP2011107507A (en) * | 2009-11-19 | 2011-06-02 | Fujikura Ltd | Optical connector |
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JP2017129628A (en) * | 2016-01-18 | 2017-07-27 | 株式会社フジクラ | Optical connector and method of manufacturing optical connector |
US20180231719A1 (en) * | 2017-02-14 | 2018-08-16 | Furukawa Electric Latam S.A. | Connector for optic fiber cable and crimping tool for optic fiber cable |
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JP6823577B2 (en) | 2021-02-03 |
CN111247468A (en) | 2020-06-05 |
JP2019086571A (en) | 2019-06-06 |
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