JP2017142362A - Method for manufacturing optical connector, and tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical connector, capable of facilitating the work of inserting a sheath grip member into an optical connector body.SOLUTION: A method for manufacturing an optical connector, capable of assembling the optical connector by inserting a sheath grip member 30 holding an optical cable 3 into an optical connector body 10 comprises the steps of: preparing a tool including a first member 50 having a housing part 52 for housing the optical connector body 10 and a second member 60 rotatably coupled with the first member 50; inserting the sheath grip member 30 into the optical connector body 10 to the middle; housing the optical connector body 10 in the housing part 52 of the first member 50; and inserting the sheath grip member 30 into the optical connector body 10 by rotating the second member 60 to the first member 50 and pressing the end surface of the sheath grip member 30 by a pressing part 62 provided in an end portion of the second member 60 while contacting the optical connector body 10 with the regulation part of the storage part 52.SELECTED DRAWING: Figure 9

Description

  The present disclosure relates to an optical connector manufacturing method and a tool.

  For example, a field assembly type optical connector is known as an apparatus for connecting optical fibers by abutting end faces of optical fibers. An on-site assembly type optical connector is an optical connector having a structure that can be easily assembled to an end of an optical cable at an optical fiber installation site. A built-in fiber is attached in advance to the ferrule of the optical connector before assembly at the factory, and an end of the built-in fiber is disposed in a clamp part (mechanical splice part). At the assembly work site, the outer gripping member is made to grip the outer sheath of the optical cable, and the end portion of the insertion fiber led out from the optical cable is inserted into the clamp portion, and the optical fibers are butt-connected in the clamp portion. .

  Patent Documents 1 to 3 describe structures of a field assembly type optical connector and a gripping member used for the field assembly type optical connector. In the jacket gripping member described in Patent Document 1 and Patent Document 2, gripping projections are formed on the surfaces of the pair of side wall portions facing each other, and the gripping projections are bitten into the jacket of the optical cable to form a pair of side walls. An optical cable is held and fixed between the sections. Patent Document 3 describes that an on-site assembly type optical connector is assembled using an optical fiber jig holding an optical fiber.

International Publication No. 2013/129485 JP 2006-178289 A Japanese Patent No. 4267620

  In the field assembly type optical connector, when the optical fibers are brought into contact with each other, the outer cover holding member holding the optical cable is inserted into the optical connector main body. At this time, if the jacket gripping member is not sufficiently inserted into the optical connector main body, the optical fibers may be insufficiently matched. However, since the area where the rear end face of the outer cover holding member can be pressed with a finger is narrow, it is difficult to fully insert the outer cover holding member into the optical connector body. In particular, when a force is required to insert the outer gripping member into the optical connector main body, it becomes difficult to insert the outer gripping member into the optical connector main body. turn into.

  Some embodiments of the present invention have an object of facilitating the operation of inserting a jacket holding member into an optical connector body.

  Some embodiments of the present invention are optical connector manufacturing methods for assembling an optical connector by inserting a jacket holding member holding an optical cable into the optical connector main body, and include an accommodating portion for accommodating the optical connector main body. Preparing a tool comprising a first member and a second member rotatably connected to the first member, inserting the jacket holding member halfway into the optical connector body, the light The connector main body is accommodated in the accommodating portion of the first member, and the second member is rotated with respect to the first member, and the optical connector main body is brought into contact with the restricting portion of the accommodating portion. The outer gripping member is further inserted into the optical connector main body by pressing the end surface of the outer gripping member with a pressing portion provided at the end of the two members.

  Other features will be clarified in the description and drawings described later.

  According to some embodiments of the present invention, the operation of inserting the jacket gripping member into the optical connector body is facilitated.

FIG. 1A is a perspective view of the optical connector 100. FIG. 1B is an exploded perspective view of the optical connector 100. 2A and 2B are perspective views of the assembly tool 40. FIG. FIG. 3 is a perspective view of the front member 50. FIG. 4A is a perspective view of the rear member 60. FIG. 4B is a perspective view of the rear member 60 from another angle. FIG. 4C is a top view of the rear member 60. FIG. 5 is a flowchart of the assembly work of the optical connector 100. 6A and 6B are explanatory views showing a state in which the jacket gripping member 30 and the square cable 3A are set on the assembly tool 40. FIG. FIGS. 7A and 7B are explanatory views showing a state in which the jacket gripping member 30 and the round cable 3B are set on the assembly tool 40. FIG. FIG. 8 is an explanatory view showing a state in which the outer covering member 30 is removed from the front member 50. FIG. 9A is an explanatory diagram showing a state in which the optical connector body 10 is set on the front member 50. FIG. 9B is an explanatory diagram showing a state in which the outer gripping member 30 is pushed forward by the pressing portion 62 of the rear member 60. FIG. 10 is an explanatory diagram of the assembly tool 40 of the second embodiment.

  At least the following matters will be apparent from the description and drawings described below.

  An optical connector manufacturing method for assembling an optical connector by inserting an outer gripping member holding an optical cable into the optical connector body, the first member having a housing portion for housing the optical connector body, and the first member Preparing a tool including a second member rotatably coupled to the optical connector body, inserting the jacket gripping member halfway into the optical connector body, and housing the optical connector body with the first member And the second member is rotated with respect to the first member, and the optical connector main body is brought into contact with the restricting portion of the housing portion, and the pressing provided at the end of the second member The optical connector manufacturing method is characterized in that the outer gripping member is further inserted into the optical connector main body by pressing the end face of the outer gripping member with a portion. It made. According to such an optical connector manufacturing method, the operation of inserting the jacket holding member into the optical connector main body becomes easy.

  A curved surface is formed in the pressing portion, and when the second member is rotated with respect to the first member, the end surface of the outer gripping member is pressed by the curved surface of the pressing portion. Is desirable. Thereby, a jacket holding member can be pressed smoothly.

  A pair of pressing portions is formed at the end of the second member, and the optical cable is clamped by the pair of pressing portions when the second member is rotated with respect to the first member. It is desirable that the end faces of the pair of side wall portions of the jacket holding member are pressed. Thereby, a jacket holding member can be pressed uniformly.

  The second member is applied to the first member by applying a force to the operation portion disposed on the opposite side of the pressing portion when viewed from the connecting portion that rotatably connects the first member and the second member. It is desirable to rotate the member. Thereby, the operation | work which pushes in a jacket holding member with a press part becomes easy.

  The distance between the connecting part and the operation part is preferably longer than the distance between the connecting part and the pressing part. Thereby, the outer cover holding member can be pushed in using the principle of leverage.

  It is preferable that the tool has a latch mechanism for fixing rotation of the first member and the second member. Thereby, the operation | work using a tool becomes easy.

  It is desirable that the second member is rotated with respect to the first member until it is fixed by the latch mechanism, and the end surface of the jacket holding member is pressed by the pressing portion. Thereby, the jacket holding member can be inserted into the optical connector main body up to a predetermined insertion amount.

  The first member has a gripping member housing portion for housing the jacket gripping member, and the second member is a cable holding portion for holding the optical cable extending from the jacket gripping member. It is desirable to have

  Processing the optical fiber led out from the optical cable in a state where the outer gripping member is accommodated in the gripping member accommodating portion of the first member and the optical cable is held in the cable holding portion of the second member. It is desirable to do. Thereby, processing of an optical fiber becomes easy.

  After processing the optical fiber, the first member is rotated with respect to the second member, the outer gripping member is removed from the first member, and the optical cable is held by the cable holding portion of the second member. In this state, it is desirable to insert the outer gripping member into the optical connector body. Thereby, the operation | work which inserts a jacket holding member into an optical connector becomes easy.

  The jacket holding member is configured to be able to hold a first optical cable and a second optical cable having different shapes, and the cable holding unit is configured to be able to hold the first optical cable and the second optical cable. Is desirable. Thereby, it becomes possible to cope with at least two types of optical cables having different shapes.

  The cable holding part preferably has a straight groove for accommodating the first optical cable and a meandering groove meandering across the straight groove to accommodate the second optical cable. Thereby, both a linear groove and a meandering groove | channel can be formed in a narrow area | region.

  The cable holding portion includes a partition wall partitioning the linear groove and the meandering groove, and an elastic piece provided at a position facing the surface of the partition wall on the linear groove side. When the first optical cable is accommodated in the groove, it is preferable that the first optical cable is sandwiched between the partition wall and the elastic piece. Thereby, a 1st optical cable can be hold | maintained at a cable holding part.

  It is desirable that the elastic pieces are arranged on both the left and right sides when viewed from the linear groove. Thereby, a 1st optical cable can be hold | maintained stably.

  The optical connector main body has a locking claw portion for fixing the jacket gripping member, and the jacket gripping member includes a locking portion locked to the locking claw portion, a withdrawal recess, The tool includes a release protrusion for releasing the locking state between the locking claw and the locking portion, and the outer gripping member is removed from the optical connector body by being hooked on the removal recess. It is desirable to have an extraction protrusion for the purpose. Thereby, a jacket holding member can be extracted from an optical connector main body using a tool.

  A tool for inserting an outer cover holding member holding an optical cable into an optical connector body, comprising: a first member; and a second member rotatably connected to the first member, The member has a housing portion that houses the optical connector body, the housing portion has a restricting portion that contacts the optical connector body and restricts movement of the optical connector body, and the second member is When the second member is rotated with respect to the first member while holding the optical connector main body in a state in which the outer gripping member is inserted partway, having a pressing portion, While the optical connector main body is in contact with the restricting portion, the pressing portion is configured to press an end surface of the outer gripping member and push the outer gripping member into the optical connector main body. The tool to become clear. According to such a tool, the operation of inserting the jacket holding member into the optical connector main body becomes easy.

=== First Embodiment ===
<Basic structure of optical connector 100>
FIG. 1A is a perspective view of the optical connector 100. FIG. 1B is an exploded perspective view of the optical connector 100.

  In the description of the optical connector 100, each direction is defined as shown in FIG. 1A. That is, the optical axis direction of the optical cable 3 or the optical fiber 4 is “front-rear direction”, the side where the optical cable 3 extends from the optical connector 100 is “rear”, and the opposite side (the end face side of the ferrule 13 of the optical connector 100) is “Before”. In addition, the insertion / extraction direction of the insertion member 19 is “up / down direction”, the side of the insertion member 19 viewed from the optical connector body 10 is “upper”, and the opposite side is “lower”. Further, the direction perpendicular to the front-rear direction and the up-down direction is referred to as “left-right direction”, the right side when viewing the front side from the rear side is “right”, and the left side is “left”.

  The optical connector 100 is an on-site assembly type optical connector that connects the optical fiber 4 by a mechanical splice method, and is an optical connector that is assembled at the end of the optical cable 3. The optical connector 100 is, for example, an SC type optical connector (F04 type optical connector established in JIS C5973).

  An optical fiber 4 led out from the optical cable 3 can be connected to the optical connector 100. In the present embodiment, the optical cable 3 that can be connected to the optical connector 100 is a square cable 3A or a round cable 3B. In FIG. 1A, the rectangular cable 3 </ b> A is connected to the optical connector 100. On the other hand, the round cable 3B is shown in FIG. 7A, for example. The optical cable 3 includes what is called an optical cord.

  The rectangular cable 3A is an optical cable having a rectangular cross section, for example, a drop cable or an indoor cable. The rectangular cable 3A is an optical cable in which the optical fiber 4 and a pair of linear strength members are collectively covered with a jacket. The pair of strength members are arranged so as to sandwich the optical fiber 4. The direction in which the pair of strength members sandwich the optical fiber 4 is the long-side direction of the cross section of the rectangular cable 3A. On the surface constituting the long side of the cross section of the rectangular cable 3A, a notch for inserting a blade of a jacket dividing tool is formed. Since the rectangular cable 3A is configured by covering the optical fiber 4 and the strength member together with a jacket, the rectangular cable 3A is configured to be relatively hard.

  The round cable 3B (see, for example, FIG. 7A) is an optical cable having a circular cross section, and is an optical cable in which a fibrous tensile body 5 is disposed between the optical fiber 4 and the jacket. The fibrous strength member 5 is, for example, Kevlar (registered trademark). Since the round cable 3B has a layer of inclusions (for example, the fibrous strength member 5) between the optical fiber 4 and the jacket, the jacket is easily deformed and is configured to be relatively soft.

  The optical connector 100 includes an optical connector main body 10, an insertion member 19, and a jacket gripping member 30.

  The optical connector main body 10 includes a front housing 11, a ferrule 12 with a clamp, a spring 15, and a rear housing 16.

  The front housing 11 and the rear housing 16 are housings that house the ferrule 12 with a clamp. The front housing 11 is attached to the rear housing 16.

  The ferrule 12 with a clamp is accommodated in the housing so as to be retractable while being urged forward with respect to the rear housing 16 by a spring 15. The ferrule 12 with a clamp includes a ferrule 13 and a clamp portion 14 (mechanical splice portion). Here, the ferrule 13 is a cylindrical ferrule used for a single-core optical connector. The front end portion of the built-in fiber (not shown) is inserted and fixed to the ferrule 13, and the end face is polished together with the ferrule 13. The rear end portion of the built-in fiber is disposed in the aligning groove of the clamp portion 14. The clamp unit 14 aligns (aligns) the built-in fiber and the optical fiber 4 (inserted fiber) led out from the optical cable 3 by a mechanical splicing method, and fixes the built-in fiber and the inserted fiber together. It is a member (optical fiber connection device).

  The spring 15 is a member for urging the ferrule 13 accommodated in a retractable manner forward.

The rear housing 16 includes a stop ring portion 17 and a fixing portion 18.
The stop ring portion 17 is a part having a function as a stop ring, and is in contact with the rear end of the spring 15.

  The fixing part 18 is a part for fixing the outer covering member 30 and is a part provided on the rear side of the optical connector main body 10. A space surrounded by the inner surface of the fixed portion 18 is a housing space for housing the outer gripping member 30. The housing space is opened at the rear end surface of the fixing portion 18, and the outer cover gripping member 30 is inserted through the opening. The inner surface of the fixed portion 18 serves as a slide surface that slides the jacket gripping member 30 in the front-rear direction.

  The fixing portion 18 has a locking claw portion 18A on the side surface. The locking claw portion 18 </ b> A is a portion for fixing the outer cover gripping member 30 to the fixing portion 18. The locking claw portion 18 </ b> A has a claw (not shown) that protrudes inward from the inner surface. When the outer gripping member 30 is accommodated in the fixing portion 18, the locking claw portion 18 </ b> A Get caught (locked). The locking claw portion 18A locks the locking portion 32A of the jacket gripping member 30, so that the jacket gripping member 30 is fixed to the fixed portion 18, and the jacket gripping member 30 accommodated in the fixed portion 18 is moved to the rear. Can be prevented from coming out to the side.

  Moreover, the fixing | fixed part 18 has the slit 18B on the upper surface. The slit 18B is a through hole formed along the front-rear direction. When a release portion 66 (described later: see FIG. 4A) is inserted into the slit 18B, a release protrusion 66A (described later) of the release portion 66 is engaged with a locking claw portion 18A of the fixing portion 18 and a locking portion 32A of the outer cover gripping member 30. And the removal projection 66B (described later) of the release portion 66 engages with the removal recess 32B of the jacket gripping member 30. Since the slit 18B is formed along the front-rear direction, the release portion 66 can be moved to the rear side with the release portion 66 inserted into the slit 18B.

  The insertion member 19 is a member that opens and closes a gap between the clamp portions 14 (mechanical splice portions) of the optical connector body 10. An insertion hole is formed in the upper surface of the optical connector body 10, and an insertion piece (wedge) extending from the lower side of the insertion member 19 is inserted into the insertion hole.

  The jacket gripping member 30 is a member that can hold the optical cable 3. In the present embodiment, the jacket gripping member 30 can hold the square cable 3A and the round cable 3B. In FIG. 1B, the jacket gripping member 30 grips the jacket of the rectangular cable 3A, but the round cable 3B is held on the jacket gripping member 30 by reversing the front and back of the jacket gripping member 30. It is possible to make it. However, the jacket holding member 30 may be configured to hold only one type of optical cable 3 (for example, one of the square cable 3A and the round cable 3B).

  The envelope gripping member 30 is configured by a bottom wall portion 31 and a pair of side wall portions 32 so as to have a substantially U-shaped cross section. The optical cable 3 is held while the optical cable 3 and the optical fiber 4 are inserted into the space surrounded by the bottom wall portion 31 and the pair of side wall portions 32.

  The jacket gripping member 30 has a rectangular cable housing part 33, a round cable housing part 34, and a central part 35.

  The rectangular cable housing portion 33 is a portion for housing the outer jacket portion of the rectangular cable 3A. The rectangular cable housing part 33 also serves as a part through which the optical fiber 4 of the round cable 3B is inserted. A grip portion is formed on the pair of side wall portions 32 of the rectangular cable housing portion 33. The grip portion is a ridge that protrudes inward from the inner surface of the side wall portion 32 and extends in the vertical direction. When the gripping portion bites into the outer cover of the rectangular cable 3A, the rectangular cable 3A becomes difficult to come off from the outer cover holding member 30.

  The round cable housing part 34 is a part for housing a jacket portion of the round cable 3B. The round cable housing part 34 is provided on the opposite side of the square cable housing part 33. As a result, by reversing the front and back of the jacket gripping member 30, it is possible to cause the jacket gripping member 30 to hold the round cable 3B. The round cable housing portion 34 also serves as a portion through which the optical fiber 4 of the square cable 3A is inserted. A grip portion is also formed on the pair of side wall portions 32 of the round cable housing portion 34.

  The central portion 35 is a portion between the rectangular cable housing portion 33 and the round cable housing portion 34. A discharge groove 35 </ b> A is formed in the side wall portion 32 of the central portion 35. The discharge groove 35A is a groove for discharging the fibrous strength member 5 of the round cable 3B to the outside of the side wall portion 32 (see, for example, FIG. 7B). The discharge groove 35 </ b> A is a cut-out portion formed from the upper edge of the side wall portion 32. When the lead-out portion (end portion of the jacket) of the round cable 3B is housed in the round cable housing portion 34, the fibrous tensile body 5 extending from the end portion of the jacket of the round cable 3B is discharged into the discharge groove. It is possible to discharge from 35 </ b> A to the outside of the side wall portion 32, and to wrap around the bottom wall portion 31 of the covering member 30. Thereby, the covering member 30 can be fixed to the fixing portion 18 in a state where the fibrous strength member 5 is sandwiched between the bottom wall portion 31 of the covering member 30 and the fixing portion 18. Since the round cable 3B is soft, the gripping portion of the round cable housing portion 34 cannot be firmly bitten into the jacket like the gripping portion of the square cable housing portion 33. By inserting the fibrous strength member 5 between the wall portion 31 and the fixing portion 18, it is possible to suppress the round cable 3 </ b> B from coming off from the jacket gripping member 30 fixed to the fixing portion 18.

<Assembly tool 40>
2A and 2B are perspective views of the assembly tool 40. FIG.

  In the description of the assembly tool 40, each direction is defined as shown in FIG. 2A. That is, under the usage condition in which the assembly tool 40 holds the outer gripping member 30 and the rectangular cable 3A (see FIG. 6A), the optical axis direction of the optical fiber 4 is set to the “front-rear direction”, and the assembly tool 40 to the optical cable. 3 is defined as “rear”, and the opposite side (side from which the optical fiber 4 extends) is defined as “front”. The insertion / extraction direction of the outer gripping member 30 and the optical cable 3 with respect to the assembly tool 40 is “up / down direction”, the side into which the outer gripping member 30 and the optical cable 3 are inserted as viewed from the assembly tool 40 is “upward”, and the reverse side Is “down”. Further, a direction perpendicular to the front-rear direction and the vertical direction is referred to as “left-right direction”, the right side when viewing the front side from the rear side is referred to as “right”, and the opposite side is referred to as “left”.

  The assembly tool 40 is a tool used when the optical connector 100 is assembled. Note that the assembly tool 40 of the first embodiment also has a function as a holder that holds the jacket gripping member 30 when the optical fiber 4 is processed.

  The assembly tool 40 includes a front member 50 and a rear member 60. The front side member 50 and the rear side member 60 are connected so as to be relatively rotatable about the rotation shaft 51 (see FIG. 2B).

  FIG. 3 is a perspective view of the front member 50. The front member 50 has a function of pressing the optical connector main body 10 when the outer cover holding member 30 is inserted into the optical connector main body 10 (specifically, the fixing portion 18) (see FIG. 9A: described later). The front member 50 also has a function of holding the jacket holding member 30 during processing of the optical fiber 4 led out from the optical cable 3 (see FIGS. 6A and 7A: described later). The front member 50 includes a rotation shaft 51, a first housing portion 52, a second housing portion 53, an opening portion 54, an insertion groove 55, and a latch claw 56.

  The rotating shaft 51 is a connecting portion that rotatably connects the front member 50 and the rear member 60, and is a portion that serves as a central axis of rotation of the front member 50 relative to the rear member 60. The rotating shaft 51 is an axial (bar-shaped) part parallel to the left-right direction. The rotating shaft 51 is provided on the rear side of the front member 50.

  The first housing portion 52 is a housing portion for housing the optical connector body 10. In the present embodiment, the first accommodating portion 52 accommodates a part (lower portion) of the fixing portion 18 of the rear housing 16 (see FIG. 9A: described later). May be accommodated. Moreover, the 1st accommodating part 52 may accommodate not only a part of optical connector main body 10 but the whole optical connector main body 10. FIG.

  The 1st accommodating part 52 has 52 A of front side control parts. The front-side restricting portion 52A is a restricting portion that comes into contact with the optical connector main body 10 and restricts (limits) movement of the optical connector main body 10 toward the front side. The front regulating portion 52 </ b> A is configured by the front wall surface of the first housing portion 52. Since the front member 50 includes the front regulating portion 52A, it is possible to prevent the optical connector main body 10 from being displaced when the outer cover holding member 30 is inserted into the optical connector main body 10 (specifically, the fixing portion 18). In other words, the front regulating portion 52 </ b> A serves as a positioning portion that positions the front side of the optical connector body 10. In the present embodiment, the front regulating portion 52A regulates the movement of the optical connector body 10 to the front side by contacting the front end surface of the fixed portion 18 (see FIG. 9A: described later). The movement of the optical connector main body 10 toward the front side may be regulated by contacting with other parts of the main body 10.

  The second housing portion 53 is a housing portion for housing the outer gripping member 30. The 2nd accommodating part 53 accommodates the jacket holding member 30 holding the optical cable 3 (refer FIG. 6A and FIG. 7A: below-mentioned). The front member 50 may not include the second housing portion 53.

  The opening 54 is a part where the rear side of the first housing part 52 is opened. The opening 54 is configured by forming a concave rear wall portion of the front member 50. In the opening 54, the pressing portion 62 of the rear member 60 is disposed (see FIG. 2A). Further, when the optical connector main body 10 (specifically, the fixing portion 18) is accommodated in the first accommodating portion 52, the jacket member 30 that protrudes from the rear side of the optical connector main body 10 is disposed in the opening 54. (See FIG. 9B: described later).

  The insertion groove 55 is a groove for inserting the optical fiber 4. The insertion groove 55 is formed in the center of the front wall portion of the front member 50 along the front-rear direction, and is positioned on the front side of the second housing portion 53. When the outer gripping member 30 is accommodated in the second accommodating portion 53, the optical fiber 4 squeezed out from the optical cable 3 held by the outer gripping member 30 is inserted into the insertion groove 55 (see FIGS. 6A and 7A: Later). If the front member 50 does not include the second housing portion 53, the front member 50 may not have the insertion groove 55.

  The latch claw 56 is a part for fixing the rear member 60. In this embodiment, the latch claw 56 fixes the rear member 60 by engaging with a latch portion 62B (described later: see FIG. 4A) formed on the side surface of the pressing portion 62 of the rear member 60. Thus, the latch claw 56 is a part which constitutes a latch mechanism together with the latch part 62B. However, the latch claw 56 may engage with other parts of the rear member 60. Further, the front member 50 may not include the latch claw 56. However, since the front member 50 includes the latch claw 56, the rear member 60 can be fixed in the state shown in FIG. 2A, so that the assembly work of the optical connector 100 is facilitated.

  FIG. 4A is a perspective view of the rear member 60. FIG. 4B is a perspective view of the rear member 60 from another angle. FIG. 4C is a top view of the rear member 60. The rear member 60 has a function of pressing the outer gripping member 30 when the outer gripping member 30 is inserted into the optical connector main body 10 (specifically, the fixing portion 18) (see FIG. 9B: described later). The rear member 60 of the first embodiment also has a function of holding the optical cable 3 (see FIGS. 6A and 7A: described later). The rear member 60 includes a bearing portion 61, a pressing portion 62, and a cable holding portion 63.

  The bearing portion 61 is a part constituting a connecting portion that rotatably connects the front member 50 and the rear member 60 together with the rotation shaft 51 of the front member 50, and supports the rotation shaft 51 of the front member 50 rotatably. It is a part. The bearing portion 61 is configured on the front side of the rear member 60. The bearing portion 61 is configured so that the rotary shaft 51 can be attached to and detached from the lower surface of the rear member 60. However, the bearing portion 61 and the rotating shaft 51 may not be configured to be detachable. Alternatively, the bearing portion 61 may be formed on the front member 50 and the rotating shaft 51 may be formed on the rear member 60.

  The pressing part 62 is a part for pressing the outer gripping member 30 when the outer gripping member 30 is inserted into the fixing part 18 of the optical connector body 10. The pressing portion 62 is formed to protrude to the front side of the rear member 60. In the state shown in FIG. 2A, the pressing portion 62 is disposed inside the opening 54 of the front member 50.

  The rear member 60 has a pair of pressing portions 62. A pair of press part 62 is located in a line with the left-right direction, and presses the rear end surface of a pair of side wall part 32 of the jacket holding member 30 (after-mentioned: refer FIG. 9B). Since the pair of side wall portions 32 of the jacket holding member 30 can be pressed, the jacket holding member 30 can be pressed evenly. Between the pair of pressing portions 62, the optical cable 3 extending rearward from the jacket holding member 30 is inserted (see, for example, FIGS. 6A, 7A, and 9A).

  The pressing portion 62 is formed so as to protrude forward from the bearing portion 61 (connecting portion). 2B, when the rear member 60 is rotated with respect to the front member 50, the pressing portion 62 can be removed from the opening 54 of the front member 50. Further, when the rear member 60 is rotated from the state shown in FIG. 2B to the state shown in FIG. 2A, the pressing part 62 enters the opening 54 of the front member 50 so that the front edge of the pressing part 62 moves to the front side. . Thereby, the rear end surface of the jacket gripping member 30 can be pressed forward by the front edge of the pressing portion 62 (see FIG. 9B: described later).

  The pressing part 62 has a curved surface 62A. The curved surface 62A is a surface curved in a convex shape on the lower side (the bearing portion 61 side). Since the pressing portion 62 has the curved surface 62A, the outer gripping member 30 can be pressed smoothly.

  On the side surface of the pressing portion 62, a latch portion 62B is formed. The latch portion 62 </ b> B engages with the latch claw 56 of the front member 50, and thereby the rear member 60 is fixed to the front member 50.

  The cable holding part 63 is a part that holds the optical cable 3. In the present embodiment, the cable holding portion 63 can hold both the square cable 3A and the round cable 3B. However, the cable holding unit 63 may be configured to hold only one type of optical cable 3. In addition, when the rear member 60 has only a function of pressing the outer gripping member 30 and does not need a function of holding the optical cable 3, the rear member 60 may not include the cable holding portion 63. .

  The cable holding part 63 includes a straight groove 631, a meandering groove 632, a partition wall part 633, and an elastic piece 634.

  The straight groove 631 is a straight groove for accommodating the rectangular cable 3A (see also FIGS. 6A and 6B). The straight groove 631 is formed in the front-rear direction at the left and right central portions of the rear member 60. Since the upper side of the linear groove 631 is open, the rectangular cable 3A can be inserted into the linear groove 631 from the upper side. When the rectangular cable 3A is accommodated in the straight groove 631, the rectangular cable 3A is sandwiched from the left and right, and the rectangular cable 3A is held by the assembly tool 40.

  The meandering groove 632 is a groove for accommodating the round cable 3B (see also FIGS. 7A and 7B). Since the round cable 3B is soft, it is difficult to obtain a sufficient holding force even if the round cable 3B is sandwiched from the left and right by the straight groove 631 as in the square cable 3A. By holding the cable 3B meanderingly, the holding power of the round cable 3B is increased. The meandering groove 632 is formed in a zigzag manner on the left and right so as to cross the linear groove 631. Thereby, both the straight groove 631 and the meandering groove 632 can be formed in a narrow region.

  The partition wall 633 is a wall-shaped part that partitions the straight groove 631 and the meandering groove 632. One surface of the partition wall 633 is a plane that forms the straight groove 631. The other surface of the partition wall portion 633 has a curved surface constituting the meandering groove 632.

  The elastic piece 634 is a part for holding the rectangular cable 3 </ b> A accommodated in the linear groove 631. The elastic piece 634 is formed at a position facing the plane of the partition wall portion 633, and sandwiches the rectangular cable 3 </ b> A with the partition wall portion 633. Since the elastic piece 634 is elastically deformed, the rectangular cable 3A can be easily accommodated in the linear groove 631.

  The elastic piece 634 protrudes from the inner surfaces of the left and right wall portions of the rear member 60 toward the linear groove 631. The elastic piece 634 has a thin plate shape here, but may have another shape such as a rod shape or a column shape. However, the vertical dimension of the elastic piece 634 is desirably larger than the vertical dimension of the rectangular cable 3A. Thereby, the retention strength with respect to the square cable 3A improves.

  The elastic piece 634 is disposed so as to be inclined with respect to the front-rear direction so that the distal end portion 634B is positioned on the front side with respect to the proximal end portion 634A. As a result, when the rectangular cable 3A is accommodated in the rear member 60 while the outer covering member 30 is accommodated in the front member 50 (see FIG. 6A: described later), the outer covering member 30 and the rectangular cable 3A are rearward. It is possible to allow the jacket holding member 30 and the optical cable 3 to move to the front side while suppressing the movement to the side. As a result, it becomes easier to position the front gripping member 30 relative to the assembly tool 40.

  The distance between the tip 634B of the elastic piece 634 and the flat surface of the partition wall 633 (gap in the left-right direction) is set to be narrower than the width (size in the left-right direction) of the rectangular cable 3A. Accordingly, when the rectangular cable 3A is accommodated in the linear groove 631, the elastic piece 634 is elastically deformed (see FIG. 6B), and the rectangular cable 3A is connected to the partition wall 633 by the restoring force of the elastic piece 634. It will be pinched. In addition, it is desirable that the tip portion 634B of the elastic piece 634 is rounded in order to suppress damage to the rectangular cable 3A.

  A plurality of elastic pieces 634 are arranged at intervals in the front-rear direction. Thereby, the force applied to the square cable 3A can be dispersed, and the square cable 3A can be stably held.

  The elastic piece 634 is formed on the opposite side to the meandering groove 632 (or partition wall 633) side when viewed from the straight groove 631. Thereby, the elastic piece 634 can be efficiently arranged together with the linear groove 631 and the meandering groove 632 in a narrow region.

  The elastic piece 634 is desirably provided on either the left or right side as viewed from the straight groove 631. Thereby, the square cable 3A can be stably held as compared with the case where the elastic pieces 634 are provided only on the left and right sides when viewed from the straight groove 631.

  The rear member 60 further includes a discharge groove 64, an operation part 65, and a release part 66.

  The discharge groove 64 is a groove for discharging the fibrous tensile body 5 of the round cable 3B to the outside (see, for example, FIG. 7B). By discharging the fibrous strength member 5 of the round cable 3B to the outside from the discharge groove 64, the fibrous strength member 5 does not get in the way.

The operation unit 65 is a part (part where force is applied) for operating the rear member 60 when the rear member 60 is rotated with respect to the front member 50. A concave portion is formed on the lower surface of the rear member 60 so that the operator's finger can be easily hooked on the rear portion of the concave portion when the rear member 60 is operated. That is, the rear portion of the concave portion on the lower surface of the rear member 60 becomes the operation portion 65. However, the shape of the operation unit 65 is not limited to this.
The operation unit 65 is disposed on the side opposite to the pressing unit 62 when viewed from the rotation shaft 51. Thereby, the operation of rotating the rear member 60 relative to the front member 50 and pushing the outer gripping member 30 with the pressing portion 62 is facilitated.
The distance between the operation unit 65 and the rotating shaft 51 is longer than the distance between the pressing unit 62 and the rotating shaft 51. Thus, when the outer gripping member 30 is pressed against the optical connector main body 10 by the pressing portion 62, the outer gripping member 30 can be pushed in with a small force using the lever principle.

  The release part 66 is a part for removing the outer gripping member 30 fixed to the optical connector main body 10 (specifically, the fixing part 18). The release portion 66 has a release protrusion 66A and a removal protrusion 66B. When the release portion 66 is inserted into the slit 18 </ b> B (see FIGS. 1A and 1B) of the fixing portion 18 of the optical connector main body 10, the release protrusion 66 </ b> A engages the locking claw portion 18 </ b> A of the fixing portion 18 and the outer cover holding member 30. The engagement with the stop portion 32 </ b> A is released, and the removal projection 66 </ b> B engages with the removal recess 32 </ b> B of the outer covering member 30. Then, by moving the release portion 66 to the rear side with the release portion 66 inserted into the slit 18B, the extraction projection 66B is hooked on the extraction recess 32B of the outer gripping member 30, and the outer cover is removed from the fixing portion 18. The gripping member 30 can be removed. Note that, on the side surface of the rear member 60, the direction in which the release portion 66 should be moved when the outer gripping member 30 is removed is indicated by an arrow.

<Assembly work of optical connector 100>
FIG. 5 is a flowchart of the assembly work of the optical connector 100.

  First, the operator leads out the optical fiber 4 from the optical cable 3 (square cable 3A or round cable 3B) (S001), and sets the optical cable 3 on the jacket holding member 30 (S002).

  When the rectangular cable 3 </ b> A is set on the outer cover holding member 30, the outer cover of the rectangular cable 3 </ b> A is stored in the rectangular cable storage portion 33 of the outer cover holding member 30. At this time, the grip portion of the rectangular cable housing portion 33 bites into the outer cover of the rectangular cable 3 </ b> A, so that the rectangular cable 3 </ b> A is not easily detached from the outer cover holding member 30.

  When the round cable 3B is set on the jacket gripping member 30, the end of the jacket of the round cable 3B is accommodated in the round cable housing portion 34 with the front and back of the jacket gripping member 30 reversed. Then, the outer cable holding member 30 holds the round cable 3B. Further, since the fibrous strength member 5 extends from the opening portion (end portion of the jacket) of the round cable 3B, the operator removes the fibrous strength member 5 from the discharge groove 35A to the outside of the side wall portion 32. While being discharged, it is made to wrap around the bottom wall portion 31 of the covering member 30.

  Next, the operator sets the jacket gripping member 30 and the optical cable 3 on the assembly tool 40 (S003). At this time, the operator engages the latch portion 62B of the rear member 60 with the latch claw 56 (see FIG. 2B) of the front member 50 in advance, so that the rear side with respect to the front member 50 as shown in FIG. 2A. The member 60 is fixed and the assembly tool 40 is prepared.

  6A and 6B are explanatory views showing a state in which the jacket gripping member 30 and the square cable 3A are set on the assembly tool 40. FIG. As shown in the figure, the operator sets the outer cover gripping member 30 in the second accommodating portion 53 of the front member 50. Further, as illustrated, the operator sets the square cable 3 </ b> A in the straight groove 631 of the rear member 60. When the square cable 3A is accommodated in the straight groove 631, the elastic piece 634 is elastically deformed (see FIG. 6B), and the square cable 3A is sandwiched between the partition wall 633 by the restoring force of the elastic piece 634.

FIGS. 7A and 7B are explanatory views showing a state in which the jacket gripping member 30 and the round cable 3B are set on the assembly tool 40. FIG. As shown in the figure, the operator sets the outer cover gripping member 30 in the second accommodating portion 53 of the front member 50. Further, as illustrated, the operator sets the round cable 3 </ b> B in the meandering groove 632 of the rear member 60. Since the round cable 3B is soft, it is difficult to obtain a sufficient holding force even if the round cable 3B is clamped from the left and right by the straight groove 631 like the square cable 3A. By holding them, the holding power of the round cable 3B is increased.
As already described, during the operation of S002, the fibrous strength member 5 extending from the lead-out portion (end portion of the jacket) of the round cable 3B is outside the discharge groove 35A of the jacket gripping member 30. And wraps around the bottom wall portion 31 of the jacket gripping member 30. When the operator sets the round cable 3B in the assembly tool 40, the fibrous tensile strength member 5 of the round cable 3B is attached to the pair of pressing portions 62 of the rear member 60 as shown in FIGS. 7A and 7B. It is discharged to the outside from the discharge groove 64 via the gap. Thereby, when the round cable 3B is set in the meandering groove 632, the fibrous strength member 5 does not get in the way. This also prevents the fibrous strength member 5 from getting in the way when the outer gripping member 30 is inserted into the fixing portion 18 of the optical connector body 10 (described later: S007).

  When the covering member 30 and the optical cable 3 are set on the assembly tool 40, the optical fiber 4 led out from the optical cable 3 extends forward from the insertion groove 55 of the front member 50 (see FIGS. 6A and 7A).

  Next, the worker removes the coating on the end portion of the optical fiber 4 led out from the optical cable 3 (S004), and cuts the end portion of the optical fiber 4 (S005). As a result, the optical fiber 4 having a predetermined size (the bare optical fiber portion 4A and the covering portion 4B) extends forward from the outer gripping member 30, and the bare optical fiber portion 4A having a predetermined size is provided at the end of the optical fiber 4. It is done. Note that the operator performs processing of the optical fiber 4 (the coating removal in S004 and the end cutting in S005) in a state where the covering member 30 and the optical cable 3 are set on the assembly tool 40.

  Next, the operator removes the outer covering member 30 from the front member 50 in order to insert the outer covering member 30 into the fixing portion 18 of the optical connector body 10 (S006). FIG. 8 is an explanatory view showing a state in which the outer covering member 30 is removed from the front member 50.

  As shown in the figure, the operator removes the outer covering member 30 from the front member 50 while holding the optical cable 3 on the rear member 60. At this stage, since the optical cable 3 is held by the rear member 60, the operation of inserting the outer gripping member 30 into the fixing portion 18 of the optical connector body 10 (described later: S007) is facilitated.

  Further, as illustrated, since the front member 50 and the rear member 60 are rotatably connected, if the front member 50 is rotated with respect to the rear member 60 around the rotation shaft 51, the rear side The outer gripping member 30 can be removed from the front member 50 while being connected to the member 60. For this reason, it is possible to remove the covering member 30 from the front member 50 in a state where the optical cable 3 is held by the rear member 60 without separating the front member 50 and the rear member 60.

  In FIG. 8, the optical cable 3 is a rectangular cable 3A. Similarly, when the optical cable 3 is a round cable 3B, the front member 50 is also moved from the state shown in FIG. By rotating the member 60 relative to the member 60, it is possible to remove the jacket gripping member 30 from the front member 50 while being connected to the rear member 60.

  Next, the operator inserts the outer covering member 30 into the fixing portion 18 of the optical connector body 10 (S007). When the outer gripping member 30 is inserted into the optical connector main body 10, the end of the optical fiber 4 led out from the optical cable 3 is inserted into the clamp portion 14 (see FIG. 1B), and the optical fiber 4 and the built-in fiber ( (Not shown) and butt connection. In the present embodiment, since the optical cable 3 is held by the rear member 60 as shown in FIG. 8, the work of inserting the jacket holding member 30 into the fixing portion 18 of the optical connector body 10 is easy.

  By the way, if the jacket holding member 30 is not sufficiently inserted into the optical connector main body 10, there is a possibility that the optical fibers are not sufficiently matched. However, at the stage of S007, the outer cover holding member 30 may be inserted only halfway into the optical connector body 10. For this reason, the work of S007 is easy compared with the work which has to fully insert the jacket gripping member 30.

  Next, the operator removes the optical cable 3 from the rear member 60 (S008). At this stage, the assembly tool 40 is temporarily detached from the jacket gripping member 30 and the optical cable 3.

Next, the operator sets the optical connector main body 10 in the first housing portion 52 of the front member 50 (S009). FIG. 9A is an explanatory diagram showing a state in which the optical connector body 10 is set on the front member 50.
The front wall surface of the first housing portion 52 is a front regulating portion 52A (see FIG. 3). When the optical connector body 10 is set in the first housing portion 52 of the front member 50, the fixing portion 18 of the optical connector body 10 is fixed. The front end face comes into contact with the front regulating portion 52A (the optical connector body 10 is positioned).

  Next, the operator rotates the rear member 60 relative to the front member 50 around the rotation shaft 51 from the state shown in FIG. 9A, and the outer gripping member 30 is moved to the front side by the pressing portion 62 of the rear member 60. Is pushed into the optical connector body 10 (S010). FIG. 9B is an explanatory diagram showing a state in which the outer gripping member 30 is pushed forward by the pressing portion 62 of the rear member 60.

  Since the outer gripping member 30 is inserted only halfway into the optical connector main body 10 in S007 described above, the outer gripping member 30 is moved from the optical connector main body 10 (specifically, the fixing portion 18) as shown in FIG. 9B. It is in a state protruding slightly to the side. When the rear member 60 is rotated relative to the front member 50 around the rotation shaft 51, the pressing portion 62 enters the opening 54 of the front member 50, and the front edge of the pressing portion 62 is behind the outer gripping member 30. Touch the end face. After the front edge of the pressing portion 62 comes into contact with the rear end surface of the outer gripping member 30, when the operator further rotates the rear member 60 relative to the front member 50, the front edge of the pressing portion 62 moves to the front side. The rear end face of the jacket gripping member 30 can be pressed forward by the front edge of the pressing portion 62. At this time, the front-side regulating portion 52A of the front-side member 50 is in contact with the optical connector main body 10 (specifically, the fixing portion 18) and the movement of the optical connector main body 10 to the front side is restricted. Can be pushed into the optical connector body 10. In the present embodiment, instead of pushing the rear end face of the outer cover holding member 30 with a finger, the rear member 60 only needs to be rotated with respect to the front member 50, so that the outer cover holding member 30 is attached to the optical connector main body 10. Insertion work becomes easy.

  In the present embodiment, the operator keeps the rear member 60 until the latch 62B of the rear member 60 engages with the latch claw 56 of the front member 50 in a state where the movement of the optical connector main body 10 to the front side is restricted. Is rotated with respect to the front member 50. Thereby, since the outer cover holding member 30 can be inserted into the fixing portion 18 of the optical connector main body 10 to a predetermined insertion amount, the outer cover holding member 30 can be sufficiently inserted into the optical connector main body 10. When the outer cover holding member 30 is fully inserted into the optical connector main body 10, the end face of the optical fiber 4 of the optical cable 3 is brought into abutment with a built-in fiber (not shown). The optical fiber 4 is slightly bent.

  In the present embodiment, the curved surface 62A (see FIG. 4B) of the pressing portion 62 contacts the rear end surface of the outer gripping member 30, and the rear end surface of the outer gripping member 30 is moved forward by the curved surface 62A of the pressing portion 62. Is pressed. Thereby, when the rear side member 60 is rotated with respect to the front side member 50, the jacket holding member 30 can be smoothly pressed.

  After inserting the outer gripping member 30 into the optical connector body 10 (after S010), the operator removes the optical connector body 10 from the assembly tool 40 (S011), and removes the insertion member 19 from the optical connector body 10 ( S012). When the insertion member 19 is removed, the optical fiber 4 and the built-in fiber (not shown) of the optical cable 3 are fixed. Thereby, the assembly work of the optical connector 100 is completed (the manufacturing work of the optical connector 100 is completed).

=== Second Embodiment ===
FIG. 10 is an explanatory diagram of the assembly tool 40 of the second embodiment.

  The assembly tool 40 of the second embodiment has a front side member 50 and a rear side member 60. The front member 50 and the rear member 60 are coupled so as to be relatively rotatable about the rotation shaft 51.

  The front member 50 has a housing portion 52 that houses the optical connector body 10. The accommodating part 52 has the front side regulation part 52A which contacts the optical connector body 10 and regulates (limits) the movement of the optical connector body 10 to the front side. In addition, the front side member 50 of 2nd Embodiment is not provided with the accommodating part (2nd accommodating part 53) for accommodating the outer covering holding member 30. FIG.

  The rear member 60 has a pressing portion 62 at the end. Note that the rear member 60 of the second embodiment does not include the cable holding portion 63. Further, the rear member 60 of the second embodiment does not include the operation unit 65 or the release unit 66.

  In the second embodiment, the operator prepares the assembly tool 40 in the drawing when the optical connector 100 is assembled. However, in the second embodiment, the operator removes the coating of the optical fiber 4 of the optical cable 3 held by the jacket gripping member 30 without using the assembly tool 40 in the figure, and ends the end of the optical fiber 4. To cut. Further, the operator inserts the jacket holding member 30 halfway into the optical connector main body 10 without using the assembly tool 40 in the drawing.

  Thereafter, as shown in the drawing, the operator accommodates the optical connector main body 10 in a state in which the jacket gripping member 30 is inserted halfway in the accommodating portion 52 of the front side member 50. When the operator rotates the rear member 60 with respect to the front member 50 in the state shown in the figure, the front side end surface of the fixing portion 18 of the optical connector body 10 contacts the front side regulating portion 52A of the front side member 50, and the rear side The pressing portion 62 of the member 60 presses the rear end face of the outer cover holding member 30, and the outer cover holding member 30 is pushed into the optical connector main body 10.

=== Summary ===
According to the above-described embodiment, the front member 50 (corresponding to the first member) having the accommodating portion 52 that accommodates the optical connector main body 10 and the rear member 60 (the first member) rotatably connected to the front member 50. An assembly tool 40 (corresponding to two members) is prepared, and the outer gripping member 30 is inserted partway into the optical connector main body 10 so that the optical connector main body 10 is accommodated in the accommodating portion 52. (For example, see FIG. 9A and FIG. 10). And according to said embodiment, the press provided in the edge part of the rear member 60, rotating the rear member 60 with respect to the front member 50, and making the optical connector main body 10 contact the front side control part 52A. The outer gripping member 30 is further inserted into the optical connector main body 10 by pressing the rear end surface of the outer gripping member 30 with the portion 62 (see, for example, FIG. 9B and FIG. 10). Thereby, compared with the case where the outer cover holding member 30 is pushed into the optical connector main body 10 with a finger, the work of inserting the outer cover holding member 30 into the optical connector main body 10 can be facilitated.

  In addition, according to the above embodiment, the pressing portion 62 has the curved surface 62A, and when the rear member 60 is rotated with respect to the front member 50, the outer cover is formed by the curved surface 62A of the pressing portion 62. The rear end surface of the gripping member 30 is pressed. Thereby, the jacket holding member 30 can be smoothly pressed. However, the curved surface 62 </ b> A may not be formed on the pressing portion 62.

  In addition, according to the above-described embodiment, the pair of pressing portions 62 is formed at the end of the rear member 60, and the pair of pressing portions 62 causes the rear side of the pair of side wall portions 32 of the jacket member 30. Each end face is pressed. Thereby, the jacket holding member 30 can be pressed uniformly. However, even if there is only one pressing portion 62 at the end of the rear member 60, it is possible to press the rear end surface of the outer gripping member 30.

  Further, according to the first embodiment, the operation unit 65 is provided on the side opposite to the pressing unit 62 when viewed from the rotating shaft 51 (corresponding to a connecting unit that rotatably connects the first member and the second member). The rear member 60 is rotated with respect to the front member 50 by applying a force to the operation portion 65. Thereby, the operation of rotating the rear member 60 relative to the front member 50 and pushing the outer gripping member 30 with the pressing portion 62 is facilitated. In addition, the operation part 65 does not need to be formed in the rear side member 60 like 2nd Embodiment.

  Moreover, according to said 1st Embodiment, the distance of the rotating shaft 51 (equivalent to the connection part which connects a 1st member and a 2nd member rotatably) and the operation part 65 is the rotating shaft 51 and a press part. Longer than 62. Thereby, the jacket holding member 30 can be pushed in using the principle of leverage.

  Moreover, according to said embodiment, the assembly tool 40 (equivalent to a tool) has the latch mechanism (the latch nail | claw 56 and the latch part 62B) for fixing rotation with the front side member 50 and the rear side member 60. FIG. Thereby, the operation | work using the assembly tool 40 becomes easy. Note that the assembly tool 40 may not include the latch mechanism.

  Further, according to the above-described embodiment, the rear member 60 is rotated with respect to the front member 50 until it is fixed by the latch mechanism (the latch claw 56 and the latch portion 62B), and the outer gripping member 30 is moved by the pressing portion 62. Press the end face. Thereby, the jacket holding member 30 can be inserted into the optical connector main body 10 up to a predetermined insertion amount.

  Further, according to the first embodiment, the front member 50 has the second housing portion 53 (corresponding to the gripping member housing portion) for housing the jacket gripping member 30, and the rear member Reference numeral 60 denotes a cable holding portion 63 that holds the optical cable 3 extending from the jacket holding member 30. However, as shown in the second embodiment, the second housing portion 53 and the cable holding portion 63 may not be provided.

  Further, according to the first embodiment, the outer gripping member 30 is accommodated in the second accommodating portion 53 and the optical fiber 4 is processed (cover removal) while the optical cable 3 is retained by the cable retaining portion 63. And end cut). Thereby, processing of optical fiber 4 becomes easy.

  Further, according to the first embodiment, after the processing of the optical fiber 4, the front member 50 is rotated with respect to the rear member 60, and the covering member 30 is removed from the front member 50 (S006 in FIG. 5). 8), the outer gripping member 30 is inserted into the optical connector main body 10 with the optical cable 3 held by the cable holding portion 63. Thereby, the operation | work which inserts the jacket holding member 30 in the optical connector main body 10 becomes easy.

  Further, according to the first embodiment, the jacket gripping member 30 is configured to be able to hold the rectangular cable 3A (corresponding to the first optical cable) and the round cable 3B (corresponding to the second optical cable) having different shapes. The cable holding portion 63 is configured to hold both the square cable 3A and the round cable 3B. Thereby, it becomes possible to cope with at least two types of optical cables 3 having different shapes.

  Further, according to the first embodiment, the cable holding unit 63 includes the linear groove 631 and the meandering groove 632 meandering so as to cross the linear groove 631. Thereby, both the straight groove 631 and the meandering groove 632 can be formed in a narrow region.

  In addition, according to the first embodiment, the cable holding portion 63 includes the partition wall portion 633 and the elastic piece 634. When the rectangular cable 3A is accommodated in the linear groove 631, the partition wall portion 633 The rectangular cable 3 </ b> A is sandwiched between the elastic piece 634. Thereby, the rectangular cable 3 </ b> A can be held by the cable holding portion 63.

  Further, according to the first embodiment, the elastic pieces 634 are disposed on both the left and right sides when viewed from the straight groove 631. Thereby, the square cable 3A can be stably held.

  Further, according to the first embodiment, the optical connector body 10 has the locking claw portion 18A, and the outer cover gripping member 30 has the locking portion 32A and the withdrawal recess 32B. The outer gripping member 30 is fixed to the optical connector main body 10 by the claw portion 18A locking the locking portion 32A. On the other hand, the assembly tool 40 has a release protrusion 66A and a removal protrusion 66B. Accordingly, the assembly tool 40 is used to release the locking state between the locking claw portion 18A and the locking portion 32A, and the extraction projection 66B is hooked on the extraction recess 32B, so that the outer connector 10 is covered with the outer cover. The gripping member 30 can be removed. However, the assembly tool 40 does not have to include the release portion 66 as in the second embodiment.

  According to the above embodiment, the assembly tool 40 (corresponding to a tool) includes a front member 50 (corresponding to a first member) and a rear member 60 (second member) that is rotatably connected to the front member 50. The front member 50 has a housing portion 52 that houses the optical connector body 10, the housing portion 52 has a front regulating portion 52A, and the rear member 60 is pressed. A portion 62 is provided. According to the above-described embodiment, the optical connector main body 10 in a state in which the jacket gripping member 30 is inserted halfway is accommodated in the accommodating portion 52 (see FIG. 9A and FIG. 10), with respect to the front member 50. When the rear member 60 is rotated, the pressing portion 62 presses the rear end surface of the outer gripping member 30 while the optical connector main body 10 is in contact with the front regulating portion 52A, and the outer gripping member 30 is moved to the optical connector. It is configured to be pushed into the main body 10. Thereby, the operation | work which inserts the jacket holding member 30 in the optical connector main body 10 becomes easy.

=== Others ===
The above-described embodiments are for facilitating the understanding of the present invention, and are not intended to limit the present invention. The present invention can be modified and improved without departing from the gist thereof, and it goes without saying that the present invention includes equivalents thereof.

3 Optical cable,
3A square cable (first optical cable),
3B round cable (second optical cable),
4 optical fiber, 4A bare optical fiber, 4B coating,
5 Fibrous tensile body,
10 optical connector body, 11 front housing,
12 Ferrule with clamp, 13 Ferrule,
14 Clamp part, 15 Spring,
16 Rear housing, 17 Stop ring part,
18 fixing part, 18A locking claw part,
18B slit, 19 insertion member,
30 outer gripping member (gripping member),
31 bottom wall, 32 side wall,
32A locking portion, 32B recess for removal,
33 square cable housing, 34 round cable housing,
35 center, 35A discharge groove,
40 Assembly tool (tool),
50 front member (first member), 51 rotating shaft (connecting portion),
52 1st accommodating part (accommodating part), 52A front side regulation part,
53 second accommodating portion (gripping member accommodating portion), 54 opening,
55 insertion groove, 56 latch claw,
60 rear side member (second member), 61 bearing portion (connecting portion),
62 pressing part, 62A curved surface, 62B latch part,
63 Cable holder,
631 Straight groove (square cable housing),
632 meandering groove (round cable housing),
633 Partition, 634 elastic piece,
634A proximal end, 634B distal end,
64 discharge groove, 65 operation part, 66 release part,
66A Release protrusion, 66B Removal protrusion,
100 optical connector (on-site assembly type optical connector)

Claims (16)

An optical connector manufacturing method for assembling an optical connector by inserting a sheath holding member holding an optical cable into an optical connector body,
Preparing a tool comprising a first member having a housing portion for housing the optical connector body, and a second member rotatably connected to the first member;
Inserting the jacket gripping member halfway into the optical connector body,
Housing the optical connector body in the housing portion of the first member, rotating the second member relative to the first member, and contacting the optical connector body to the regulating portion of the housing portion, An optical connector, wherein the outer gripping member is further inserted into the optical connector body by pressing an end surface of the outer gripping member with a pressing portion provided at an end of the second member. Production method. The optical connector manufacturing method according to claim 1,
The pressing portion is formed with a curved surface,
An optical connector manufacturing method, wherein when the second member is rotated with respect to the first member, an end surface of the outer gripping member is pressed by the curved surface of the pressing portion. The optical connector manufacturing method according to claim 2,
A pair of pressing portions is formed at the end of the second member,
When the second member is rotated with respect to the first member, the pair of pressing portions respectively press the end surfaces of the pair of side wall portions of the jacket gripping member that sandwich the optical cable. An optical connector manufacturing method. An optical connector manufacturing method according to any one of claims 1 to 3,
The second member is applied to the first member by applying a force to the operation portion disposed on the opposite side of the pressing portion when viewed from the connecting portion that rotatably connects the first member and the second member. An optical connector manufacturing method comprising rotating a member. The optical connector manufacturing method according to claim 4,
The distance between the said connection part and the said operation part is longer than the distance of the said connection part and the said press part, The optical connector manufacturing method characterized by the above-mentioned. An optical connector manufacturing method according to any one of claims 1 to 5,
The said tool has a latch mechanism for fixing rotation of a said 1st member and a said 2nd member, The optical connector manufacturing method characterized by the above-mentioned. The optical connector manufacturing method according to claim 6,
The method of manufacturing an optical connector, wherein the second member is rotated with respect to the first member until it is fixed by the latch mechanism, and the end surface of the outer gripping member is pressed by the pressing portion. It is an optical connector manufacturing method in any one of Claims 1-7,
The first member has a gripping member accommodating portion for accommodating the jacket gripping member,
The method for manufacturing an optical connector, wherein the second member has a cable holding portion for holding the optical cable extending from the gripping member. The optical connector manufacturing method according to claim 8,
Processing the optical fiber led out from the optical cable in a state where the outer gripping member is accommodated in the gripping member accommodating portion of the first member and the optical cable is held in the cable holding portion of the second member. An optical connector manufacturing method characterized by: The optical connector manufacturing method according to claim 9,
After processing the optical fiber, the first member is rotated with respect to the second member, the outer gripping member is removed from the first member,
The optical connector manufacturing method, wherein the outer gripping member is inserted into the optical connector main body while the optical cable is held by the cable holding portion of the second member. It is an optical connector manufacturing method in any one of Claims 8-10,
The jacket gripping member is configured to be able to hold a first optical cable and a second optical cable having different shapes,
The method of manufacturing an optical connector, wherein the cable holding portion is configured to be able to hold the first optical cable and the second optical cable. The optical connector manufacturing method according to claim 11,
The cable holding part has a linear groove for accommodating the first optical cable, and a meandering groove meandering across the linear groove for accommodating the second optical cable. Method. The optical connector manufacturing method according to claim 12,
The cable holding part includes a partition part that partitions the linear groove and the meandering groove, and an elastic piece provided at a position facing the surface of the partition part on the linear groove side,
When the first optical cable is accommodated in the linear groove, the first optical cable is sandwiched between the partition wall and the elastic piece. The optical connector manufacturing method according to claim 13,
The method of manufacturing an optical connector, wherein the elastic pieces are arranged on both left and right sides when viewed from the linear groove. It is an optical connector manufacturing method in any one of Claims 1-14, Comprising:
The optical connector body has a locking claw portion for fixing the jacket gripping member,
The jacket gripping member has a locking portion locked to the locking claw portion, and a recess for removal,
The tool includes a release protrusion for releasing the locking state between the locking claw portion and the locking portion, and an extraction for hooking the extraction recess to remove the outer gripping member from the optical connector main body. An optical connector manufacturing method comprising: a projection for use. A tool for inserting a jacket holding member holding an optical cable into an optical connector body,
A first member;
A second member rotatably connected to the first member;
The first member has an accommodating portion for accommodating the optical connector main body,
The accommodating portion has a restricting portion that contacts the optical connector main body and restricts movement of the optical connector main body,
The second member has a pressing portion,
When the second member is rotated with respect to the first member while the optical connector main body in a state where the outer gripping member is inserted halfway is accommodated in the accommodating portion, the light is applied to the restricting portion. The tool is configured such that the pressing portion presses an end surface of the outer gripping member while the connector main body contacts, and pushes the outer gripping member into the optical connector main body.

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