JP4568208B2 - Optical connector - Google Patents

Description

  The present invention relates to an optical connector that includes a connector socket and a connector plug and connects optical fibers to each other.

As one of conventional optical connectors, there is a mechanical splice type optical connector as described in Patent Document 1, for example. The mechanical splice type optical connector includes a housing and a splice member that is disposed in the housing and holds a short optical fiber. The optical fiber is introduced into the housing and the splice member is brought into contact with the short optical fiber. It is to clamp.
JP-A-11-160563

  In recent years, from the viewpoint of reducing the types of parts used and reducing the cost, for example, the housing of a mechanical splice type optical connector as in the above prior art is also used as an optical connector housing without a splice member. It is desired to make a housing member for a connector common to various types of optical connectors. However, in this case, it is necessary not to affect the transmission characteristics of the optical fiber.

  An object of the present invention is to provide an optical connector in which a housing member can be made common to various connectors without substantially affecting the characteristics of the optical fiber.

The present invention provides an optical connector including a connector plug and a connector socket that is detachably coupled to the connector plug. The connector plug is disposed in the plug housing and the plug housing, and holds the first optical fiber. A first boot ferrule, a plug boot inserted into the plug housing from the rear end side of the plug housing and introducing the first optical fiber into the plug housing, and a plug boot attached to the rear end of the plug housing. In order to define the distance between the bending stop member that suppresses bending, the first stop ring that is disposed between the first ferrule and the plug boot and is fixed to the plug housing, and the first ferrule and the first stop ring. and a first spacer, a connector socket mates with the plug housing socket A housing, disposed within the socket housing, and a second ferrule for holding a first optical fiber and second optical fibers to be optically connected is inserted from the rear end side of the socket housing in the socket housing, a second optical fiber A socket boot to be introduced into the socket housing, a second stop ring disposed between the second ferrule and the socket boot and fixed to the socket housing, and a distance between the second ferrule and the second stop ring. have a second spacer to define, first and second spacers, together consist of common spacers having the same structure, opposite the direction to the front end of the first ferrule and the direction to the front end of the second ferrule each other Either one of the first stop ring and the second stop ring Reduction is disposed so as to contact the one end surface of the spacer and the other of the first stop ring and a second stop ring, that you have been arranged to fit with the projection formed at the other end of the common spacer It is a feature.

  In such an optical connector, when the plug housing is originally made as a housing member for a connector plug of a different type, when the plug boot is assembled to the plug housing, the boot insertion portion of the plug housing This structure does not match the plug boot, so that the plug boot may be easily bent. In this case, since the bending rigidity of the plug boot is lowered, the characteristics of the first optical fiber inserted through the plug boot may be adversely affected. On the other hand, in the present invention, the plug boot is restrained with respect to the plug housing by the bend preventing member by attaching the bend preventing member for suppressing the bending of the plug boot to the rear end portion of the plug housing. Thereby, although the structure of the boot insertion portion of the plug housing does not match the plug boot, the rigidity against bending of the plug boot is ensured, so that the influence on the characteristics of the first optical fiber can be reduced. it can.

The connector plug and the connector socket are completely different in the types, number, structure, etc. of the parts used such as the housing member, ferrule, and stop ring. Therefore, a first spacer for defining the distance between the first ferrule and the first stop ring in the connector plug, and a second spacer for defining the distance between the second ferrule and the second stop ring in the connector socket; May be required. At this time, a common spacer having the same structure is used as the first spacer and the second spacer, and the common spacer is arranged so that the direction with respect to the front end of the first ferrule and the direction with respect to the front end of the second ferrule are opposite to each other. This makes it possible to adjust the distance between the ferrule and the stop ring in both the connector plug and the connector socket while further reducing the types of components used.
Further, by changing the width dimension of the protrusion, the interval between the first ferrule and the first stop ring or the interval between the second ferrule and the second stop ring can be easily adjusted.

According to another aspect of the present invention, there is provided an optical connector including a connector plug and a connector socket that is detachably coupled to the connector plug. The connector plug is disposed in the plug housing and the first optical fiber. A first ferrule that holds the plug, a plug boot that is inserted into the plug housing from the rear end side of the plug housing and introduces the first optical fiber into the plug housing, and is disposed between the first ferrule and the plug boot. And a first spacer that is fixed to the plug housing and a first spacer for defining a distance between the first ferrule and the first stop ring, and the connector socket is a socket that fits into the plug housing. A housing and a first optical fiber disposed in the socket housing and optically connected to the first optical fiber; A second ferrule that holds the optical fiber, a socket boot that is inserted into the socket housing from the rear end side of the socket housing, introduces the second optical fiber into the socket housing, and is attached to the rear end portion of the socket housing; A bend preventing member that suppresses bending of the socket boot, a second stop ring that is disposed between the second ferrule and the socket boot and is fixed to the socket housing, and a distance between the second ferrule and the second stop ring have a second spacer for defining the first and second spacers, together consist of common spacers having the same structure, the direction to the front end of the first ferrule and the direction to the front end of the second ferrule each other Arranged in reverse, either the first stop ring or the second stop ring The other one of the first stop ring and the second stop ring is disposed so as to fit into a protrusion formed at the other end of the common spacer. Tei is Rukoto characterized in.

  In such an optical connector, when the socket housing is originally made as a housing member for a connector socket of a different type, when the socket boot is assembled to the socket housing, the boot insertion portion of the socket housing This structure does not match the socket boot, so the socket boot may be easily bent. In this case, since the bending rigidity of the socket boot is lowered, the characteristics of the second optical fiber inserted through the socket boot may be adversely affected. On the other hand, in the present invention, the socket boot is restrained against the socket housing by the bend preventing member by attaching the bend preventing member for suppressing the bending of the socket boot to the rear end portion of the socket housing. Thereby, although the structure of the socket insertion portion of the socket housing does not match the socket boot, the rigidity against bending of the socket boot is ensured, so that the influence on the characteristics of the second optical fiber can be reduced. it can.

Also, a common spacer having the same structure is used as the first spacer and the second spacer, and the common spacer is arranged so that the direction with respect to the front end of the first ferrule and the direction with respect to the front end of the second ferrule are opposite to each other. Thus, the distance between the ferrule and the stop ring can be adjusted in both the connector plug and the connector socket, while further reducing the types of components used.

Further , by changing the width dimension of the protrusion, the interval between the first ferrule and the first stop ring or the interval between the second ferrule and the second stop ring can be easily adjusted.

  According to the present invention, the housing member can be made common to various optical connectors without substantially affecting the characteristics of the optical fiber. As a result, since the types of parts used are reduced, the design / manufacturing cost can be reduced.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an optical connector according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an embodiment of an optical connector according to the present invention. In the figure, an optical connector 1 according to this embodiment includes a connector plug 2 and a connector socket 3 that is detachably coupled to the connector plug 2. Both the connector plug 2 and the connector socket 3 are cord gripping types.

  2 is an exploded perspective view of the connector plug 2, FIG. 3 is a horizontal cross-sectional view of the connector plug 2, and FIG. 4 is a vertical cross-sectional view of the connector plug 2 (cross-sectional view taken along line IV-IV in FIG. 3). is there.

  In each figure, the connector plug 2 has a plug housing 4 having a substantially rectangular cross section. In the plug housing 4, a ferrule 5, a spacer 6, a stop ring 7, and a caulking ring 8 are arranged in this order from the front end surface (joint end surface) side to the rear end side of the plug housing 4. Further, a boot 10 for introducing an optical cord 9 incorporating an optical fiber 9 a is inserted into the plug housing 4 from the rear end side of the plug housing 4.

  The ferrule 5 has a substantially cylindrical shape, and holds the distal end portion of the optical fiber 9 a of the optical cord 9 introduced from the rear end side of the plug housing 4. The spacer 6 is a ring-shaped member for defining (adjusting) the interval between the rear end of the ferrule 5 and the front end of the stop ring 7, and is configured as a common spacer 90 as shown in FIG.

  A small inner diameter portion 90 a having an inner diameter equivalent to the maximum outer diameter of the ferrule 5 is formed on one end side of the common spacer 90. On the other end side of the common spacer 90, a large inner diameter portion 90b having an inner diameter larger than the inner diameter of the small inner diameter portion 90a is formed continuously with the small inner diameter portion 90a. An annular protrusion 90c is provided at one end of the common spacer 90 (the end on the small inner diameter portion 90a side).

  The rear end portion of the ferrule 5 is disposed so as to be inserted into the common spacer 90 (spacer 6) from the small inner diameter portion 90a side (annular protrusion 90c side). Moreover, the stop ring 7 is arrange | positioned so that it may contact | abut the end surface by the side of the large internal diameter part 90b of the common spacer 90 (spacer 6).

  The stop ring 7 is fixed to the plug housing 4 by a locking portion 7a provided on the outer peripheral surface thereof. An annular groove 7 b that engages with a locking portion 10 a formed on the boot 10 is formed on the outer peripheral surface of the stop ring 7.

  A rear end side portion of the stop ring 7 is inserted into the caulking ring 8. A Kepler 9b exposed from the outer cover of the optical cord 9 is sandwiched between the stop ring 7 and the caulking ring 8, and the caulking ring 8 is caulked against the stop ring 7 in this state. The caulking ring 8 is accommodated in the boot 10 via the ring 11.

  Further, at the rear end of the plug housing 4, two anti-bending plates 12 for suppressing the bending of the boot 10 are attached to the left and right sides so as to sandwich the boot 10. By providing such a bend-preventing plate 12, the boot 10 is restrained in the left-right direction with respect to the plug housing 4, so that the strength of the boot 10 against bending is increased and the influence on the optical cord 9 is reduced. can do.

  A pair of latch portions 13 that hold the fitting state of the plug housing 2 and the connector socket 3 are integrally provided on two opposite side surfaces 4 a of the plug housing 4. Each latch portion 13 has a latch arm 14 fixed to the side surface 4a of the plug housing 4 so as to extend from the front end portion of the plug housing 4 toward the rear end side. The latch arm 14 can be elastically deformed in the width direction of the plug housing 4. On the outer surface of the latch arm 14 (surface opposite to the plug housing 4), a locking claw 15 that engages with the connector socket 3 is projected. Further, a knob 16 for releasing the engagement of the locking claw 15 with respect to the connector socket 3 is provided at the tip of the latch arm 14.

  The latch arm 14 of each latch portion 13 extends inclining with respect to the side surface 4 a of the plug housing 4 so as to open toward the rear end side of the plug housing 4. Further, the inner surface of the knob 16 (the surface on the plug housing 4 side) has an inclination angle (for example, 8 to 12) larger than the inclination angle (for example, 2 to 3 degrees) of the latch arm 14 with respect to the side surface 4a of the plug housing 4. Configured to open at a degree). This structure is configured so that the amount of elastic deformation of the latch arm 14 is reduced when the locking claw 15 is engaged with the connector socket 3 and when the engagement of the locking claw 15 with respect to the connector socket 3 is released (described later). This is to increase the volume and generate a large click sound.

  The plug housing 4 and the latch part 13 are preferably integrally molded as one molded part from the viewpoint of cost reduction. The resin material for forming the plug housing 4 and the latch portion 13 is polyetherimide (PEI) or polyether because it can be precisely molded, has excellent heat resistance and reliability, and has creep resistance. It is preferable to use sulfone (PES) or the like.

  6 is an exploded perspective view of the connector socket 3, FIG. 7 is a horizontal sectional view of the connector socket 3, and FIG. 8 is a vertical sectional view of the connector socket 3 (sectional view taken along line VIII-VIII in FIG. 7). is there.

  In each figure, the connector socket 3 has a socket housing 17 having a substantially rectangular cross section that fits with the plug housing 4 of the connector plug 2. Locking receiving window portions 18 that engage with the locking claws 15 of the latch portion 13 are provided on the two opposing side surfaces 17 a of the socket housing 17. The resin material forming the socket housing 17 is the same as the resin material forming the plug housing 4 and the latch portion 13 of the connector plug 2, for example.

  In the socket housing 17, a split sleeve 19, a ferrule 20, a spacer 21, a stop ring 22, and a caulking ring 23 are arranged in this order from the front end surface (joint end surface) side to the rear end side of the socket housing 17. Further, a boot 25 for introducing an optical cord 24 in which an optical fiber 24 a is incorporated is inserted into the socket housing 17 from the rear end side of the socket housing 17.

  The ferrule 20 has the same structure as the ferrule 5, for example, and holds the distal end portion of the optical fiber 24 a of the optical cord 24 introduced into the socket housing 17 from the rear end side of the socket housing 17. The front end side portion of the ferrule 20 is inserted into the rear end side portion of the split sleeve 19. The front end portion of the ferrule 5 is inserted into the front end portion of the split sleeve 19 when the connector plug 2 and the connector socket 3 are coupled. The split sleeve 19 is fixed to the socket housing 17 by a sleeve stopper 26.

  The spacer 21 is a ring-shaped member for defining (adjusting) the distance between the rear end of the ferrule 20 and the front end of the stop ring 22 and is configured as a common spacer 90 as shown in FIG. Has been.

  The arrangement direction of the spacer 21 with respect to the front end face of the ferrule 20 is opposite to the arrangement direction of the spacer 6 with respect to the front end face of the ferrule 5. Specifically, the rear end side portion of the ferrule 20 is inserted into the common spacer 90 (spacer 21) from the large inner diameter portion 90b side (opposite side of the annular protrusion 90c). Further, the front end portion of the stop ring 22 is fitted into the annular protrusion 90c of the common spacer 90 (spacer 21). At this time, the distance between the rear end of the ferrule 20 and the front end of the stop ring 22 can be easily adjusted by appropriately changing the width dimension W (see FIG. 5) of the annular protrusion 90c. In addition, a spring 27 that biases toward the ferrule 20 is disposed on the large inner diameter portion 90 b of the spacer 21.

  The stop ring 22 has the same structure as the stop ring 7 of the connector plug 2. That is, the stop ring 22 is fixed to the socket housing 17 by the locking portion 22a provided on the outer peripheral surface thereof. An annular groove 22 b that engages with a locking portion 25 a formed on the boot 25 is formed on the outer peripheral surface of the stop ring 22.

  A rear end side portion of the stop ring 22 is inserted into the caulking ring 23. A Kepler 24 b exposed from the outer cover of the optical cord 24 is sandwiched between the stop ring 22 and the caulking ring 23, and the caulking ring 23 is caulked against the stop ring 22 in this state. The caulking ring 23 is accommodated in the boot 25 via a ring 28.

  Further, at the rear end of the socket housing 17, two anti-bending plates 29 for suppressing the bending of the boot 25 are attached vertically so as to sandwich the boot 25. The bending prevention plate 29 has the same structure as the bending prevention plate 12 of the connector plug 2. By providing such a bend-preventing plate 29, the boot 25 is restrained in the vertical direction with respect to the socket housing 17, so that the strength of the boot 25 against bending increases and the influence on the optical cord 24 can be reduced. it can.

  When the connector plug 2 configured as described above and the socket housing 3 are coupled, the front end surface of the connector plug 2 and the front end surface of the connector socket 3 are opposed to each other as shown in FIG. Then, as shown in FIG. 10, the connector plug 2 is inserted and pushed into the connector socket 3 so that the ferrule 5 of the connector plug 2 is inserted into the split sleeve 19 of the connector socket 3. At this time, the latch portion 13 abuts against the inner wall surface of the socket housing 17, so that the latch portion 13 is elastically deformed toward the plug housing 4 against the urging force of the latch portion 13.

  In this state, when the connector plug 2 is further pushed in, the locking claw 15 of the latch portion 13 reaches the position of the locking receiving window portion 18 of the socket housing 17. Then, the latch portion 13 spreads outside the plug housing 4 to return to the initial state due to the urging force of the latch portion 13, so that the latching pawl 15 is caught by the latch receiving window portion 18 as shown in FIG. become. As a result, the connector plug 2 and the connector socket 3 are locked. In this state, the ferrule 5 hits the ferrule 20, and the optical fibers 9a and 24a are optically connected.

  Here, since the spring 27 that biases the ferrule 20 is interposed between the ferrule 20 and the spacer 21 of the connector socket 3, when the ferrule 5 hits the ferrule 20, the biasing force of the spring 27 is reduced. On the contrary, the ferrule 20 is slightly retracted. However, there is a small space inside the optical cord 24 to the extent that the optical fiber 24a can be bent somewhat. For this reason, since the optical fiber 24a exposed from the outer sheath of the optical cord 24 is not suddenly bent in the socket housing 17, the transmission characteristics of the optical fiber 24a are hardly adversely affected.

  On the other hand, when the connection between the connector plug 2 and the connector socket 3 is released, the knob 16 of each latch portion 13 is held so as to abut against the side surface 4 a of the plug housing 4, and the locking receiving window portion 18 of the socket housing 17. The engagement of the locking claw 15 with respect to is released. As a result, the locked state between the connector plug 2 and the connector socket 3 is released. In this state, the connector plug 2 is pulled out from the connector socket 3 while holding both the knobs 16.

  In the optical connector 1 of the present embodiment as described above, since the bending prevention plate 12 for suppressing the bending of the boot 10 is provided, the plug housing 4 is manufactured as a housing member of a type different from the connector plug 2. Even if it is a thing, the quality as the connector plug 2 is securable. In other words, since the plug housing 4 is not intended for the connector plug 2, the structure of the boot insertion portion of the plug housing 4 does not match the plug boot 10, and the boot 10 is easily bent. However, by attaching the anti-bending plate 12 to the rear end portion of the plug housing 4, the bending rigidity of the boot 10 and the optical cord 9 is increased and the strength of the connector plug 2 is increased. Therefore, the optical fiber 9 a in the connector plug 2 is increased. Can be suppressed, and the influence on the transmission characteristics of the optical fiber 9a can be reduced.

  In addition, since the bending prevention plate 29 for suppressing the bending of the boot 25 is provided, even if the socket housing 17 is manufactured as a housing member of a type different from the connector socket 3, the quality as the connector socket 3 is improved. Can be secured. That is, similarly to the connector plug 2 described above, by attaching the anti-bending plate 29 to the rear end portion of the socket housing 17, the bending rigidity of the boot 25 and the optical cord 24 is increased, and the strength of the connector socket 3 is increased. The bending of the optical fiber 24a in the connector socket 3 is suppressed, and the influence on the transmission characteristics of the optical fiber 24a can be reduced.

  In this way, the plug housing 4 can be shared by two types of connector plugs, and the socket housing 17 can be shared by two types of connector sockets. As a result, the types of components used in the optical connector can be reduced, and the design / manufacturing cost can be reduced.

  Further, since the common spacer 90 having the same structure is used as the spacers 7 and 21, the distance between the ferrule 5 and the stop ring 7 in the connector plug 2 and the distance between the ferrule 20 and the stop ring 22 in the connector socket 3 are adjusted. In order to do so, it becomes unnecessary to produce two types of spacers having different structures. This is also advantageous in terms of cost because the types of components used in the optical connector can be reduced.

  FIG. 12 is a perspective view showing another optical connector provided with a connector plug having the above plug housing 4 and a connector socket having the above socket housing 17. In the figure, the same or equivalent members as those of the optical connector 1 described above are denoted by the same reference numerals, and the description thereof is omitted.

  In the figure, an optical connector 40 includes a connector plug 41 and a connector socket 42 that is detachably coupled to the connector plug 41. The connector plug 41 and the connector socket 42 are both of a core wire gripping type.

  13 is an exploded perspective view of the connector plug 41, FIG. 14 is a horizontal sectional view of the connector plug 42, and FIG. 15 is a vertical sectional view of the connector plug 42 (cross sectional view taken along the line XV-XV in FIG. 14). is there. In each figure, the connector plug 41 has a plug housing 4 and a pair of latch portions 13 as in the case of the connector plug 2 described above.

  A mechanical splice 43 and a stopper 44 are disposed in the plug housing 4. The plug housing 4 is originally manufactured not for the connector plug 2 but for the connector plug 41, and the above-described bending prevention plate 12 becomes unnecessary.

  The mechanical splice 43 has a splice member 45 composed of a base portion and a cover portion, and two clamp members 46 that clamp the splice member 45, and is introduced into the plug housing 4 from the rear end side of the plug housing 4. The tip of the optical fiber 47 is held. A short fiber 48 connected to the optical fiber 47 is built in the front end side portion of the splice member 45.

  The mechanical splice 43 is formed with two slits 49 into which wedges (not shown) for pushing open the base portion and the cover portion of the splice member 45 against the pressing force of the clamp member 46 are inserted. ing. Two wedge windows 50 into which wedges are inserted are formed at positions corresponding to the slits 49 in the plug housing 4.

  The stopper 44 is disposed at the rear part of the plug housing 4 and has a cylindrical part 51. The stopper 44 is fixed to the plug housing 4 by a locking part 51 a provided in the cylindrical part 51.

  16 is an exploded perspective view of the connector socket 42, FIG. 17 is a horizontal sectional view of the connector socket 42, and FIG. 18 is a vertical sectional view of the connector socket 42 (cross sectional view taken along the line XVIII-XVIII in FIG. 17). is there. In each figure, the connector socket 42 has the socket housing 17 similarly to the connector socket 3 described above.

  In the socket housing 17, a split sleeve 53, a mechanical splice 54, and a stopper 55 are sequentially arranged from the front end surface side to the rear end side of the socket housing 17. The socket housing 17 is originally manufactured not for the connector socket 3 but for the connector socket 42, and the bend preventing plate 29 of the above embodiment is not necessary.

  The mechanical splice 54 has a splice member 56 composed of a base portion and a cover portion, and two clamp members 57 that clamp the splice member 56, and is introduced into the socket housing 17 from the rear end side of the socket housing 17. The tip of the optical fiber 58 is held. A short fiber 59 connected to the optical fiber 58 is built in the front end portion of the mechanical splice 54. The mechanical splice 54 is formed with two slits 60 into which the wedges (not shown) are inserted. Two wedge windows 61 into which wedges are inserted are formed at positions corresponding to the slits 60 in the socket housing 17.

  A front end side portion (ferrule portion) 56 a of the splice member 56 is inserted into the rear end side of the split sleeve 53. A front end side portion (ferrule portion) 45 a of the splice member 45 is inserted into the front end side of the split sleeve 53 when the connector plug 41 and the connector socket 42 are coupled. The split sleeve 53 is fixed to the socket housing 17 by a through stopper 62.

  The stopper 55 is disposed at the rear portion of the socket housing 17 and has a cylindrical portion 63. The stopper 55 is fixed to the socket housing 17 by a locking portion 63 a provided on the cylindrical portion 63. In addition, a spring 65 that biases toward the mechanical splice 54 is disposed in the cylindrical portion 63.

  In the optical connector 40 as described above, when the connector plug 41 and the connector socket 42 are coupled, the connector plug 41 is inserted into the connector socket 42 and pushed in as shown in FIG. At this time, when the locking claw 15 of each latch part 13 reaches the position of the locking receiving window 18 of the socket housing 17, the locking claw 15 is caught by the locking receiving window 18, and the connector plug 41 and the connector The socket 42 is locked. On the other hand, when the knob 16 of each latch part 13 is grasped and the engagement of the locking claw 15 with respect to the socket housing 17 is released, the connector plug 41 and the connector socket 42 are released from the locked state.

  In addition, this invention is not limited to the said embodiment. For example, the optical connector 1 of the above-described embodiment couples a cord gripping type connector plug 2 and a cord gripping type connector socket 3, but the core wire gripping type connector plug 41 is the same as the connector plug 2. The connector socket 42 having the plug housing 4 and having the core wire holding type has the same socket housing 17 as the connector socket 3. Therefore, as a form of the optical connector, the connector plug 2 and the connector socket 42 may be coupled, or the connector plug 41 and the connector socket 3 may be coupled.

  Moreover, although the optical connector 1 of the said embodiment connects single optical fibers, this invention is applicable also to what connects multiple optical fibers.

It is a perspective view showing one embodiment of an optical connector concerning the present invention. It is a disassembled perspective view of the connector plug shown in FIG. FIG. 2 is a horizontal sectional view of the connector plug shown in FIG. 1. FIG. 4 is a vertical sectional view of the connector plug shown in FIG. 1 (a sectional view taken along line IV-IV in FIG. 3). FIG. 3 is an enlarged cross-sectional view of the spacer (common spacer) shown in FIG. 2. It is a disassembled perspective view of the connector socket shown in FIG. FIG. 2 is a horizontal sectional view of the connector socket shown in FIG. 1. FIG. 8 is a vertical sectional view of the connector socket shown in FIG. 1 (sectional view taken along line VIII-VIII in FIG. 7). FIG. 2 is a horizontal sectional view showing a state before the connector plug and the connector socket shown in FIG. 1 are coupled. It is a horizontal direction sectional view which shows the state in the middle of the connector plug and connector socket shown in FIG. 1 being couple | bonded. FIG. 2 is a horizontal sectional view showing a state in which the connector plug and the connector socket shown in FIG. 1 are coupled. It is a perspective view which shows the other optical connector using the plug housing and socket housing shown in FIG. It is a disassembled perspective view of the connector plug shown in FIG. FIG. 13 is a horizontal sectional view of the connector plug shown in FIG. 12. FIG. 15 is a vertical sectional view of the connector plug shown in FIG. 12 (cross sectional view taken along the line XV-XV in FIG. 14). It is a disassembled perspective view of the connector socket shown in FIG. FIG. 13 is a horizontal sectional view of the connector socket shown in FIG. 12. FIG. 13 is a vertical cross-sectional view of the connector socket shown in FIG. 12 (cross-sectional view taken along line XVIII-XVIII in FIG. 17). FIG. 13 is a horizontal sectional view showing a state before and after the connector plug and the connector socket shown in FIG. 12 are coupled together.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Optical connector, 2 ... Connector plug, 3 ... Connector socket, 4 ... Plug housing, 5 ... Ferrule (1st ferrule), 6 ... Spacer (1st spacer), 7 ... Stop ring (1st stop ring), 9a ... Optical fiber (first optical fiber), 10 ... Boot (plug boot), 12 ... Bending plate (bending member), 17 ... Socket housing, 20 ... Ferrule (second ferrule), 21 ... Spacer (second Spacer), 22 ... Stop ring (second stop ring), 24a ... Optical fiber (second optical fiber), 25 ... Boot (socket boot), 29 ... Bending plate (bending member), 90 ... Common spacer , 90c ... annular projection.

Claims (2)

In an optical connector comprising a connector plug and a connector socket detachably coupled to the connector plug,
The connector plug is inserted into the plug housing from a rear end side of the plug housing, a first ferrule that is disposed in the plug housing, is disposed in the plug housing, and holds the first optical fiber, and is inserted into the plug housing. Between the first ferrule and the plug boot, and a plug boot that introduces the plug boot into the plug housing, a bend preventing member that is attached to a rear end portion of the plug housing and suppresses bending of the plug boot, A first stop ring disposed and fixed to the plug housing, and a first spacer for defining a distance between the first ferrule and the first stop ring ,
The connector socket includes a socket housing that fits into the plug housing, a second ferrule that is disposed in the socket housing and holds a second optical fiber that is optically connected to the first optical fiber, and the socket housing. A socket boot inserted into the socket housing from the rear end side to introduce the second optical fiber into the socket housing, and disposed between the second ferrule and the socket boot and the socket housing a second stop ring which is fixed, and a second spacer for defining the interval between the second stop ring and the second ferrule possess in,
The first spacer and the second spacer are made of a common spacer having the same structure, and are arranged such that the direction with respect to the front end of the first ferrule and the direction with respect to the front end of the second ferrule are opposite to each other,
Either one of the first stop ring and the second stop ring is disposed so as to contact an end surface of the common spacer,
The first stop ring and the other of the second stop ring is an optical connector which is characterized that you have been arranged to fit into the common projection formed on the other end of the spacer. In an optical connector comprising a connector plug and a connector socket detachably coupled to the connector plug,
The connector plug is inserted into the plug housing from a rear end side of the plug housing, a first ferrule that is disposed in the plug housing, is disposed in the plug housing, and holds the first optical fiber, and is inserted into the plug housing. Is inserted between the first ferrule and the plug boot, and is fixed to the plug housing, and the first ferrule and the first boot ring. A first spacer for defining a distance from one stop ring ;
The connector socket includes a socket housing that fits into the plug housing, a second ferrule that is disposed in the socket housing and holds a second optical fiber that is optically connected to the first optical fiber, and the socket housing. A socket boot inserted into the socket housing from the rear end side to introduce the second optical fiber into the socket housing, and a bend attached to the rear end portion of the socket housing to suppress bending of the socket boot. A stop member , a second stop ring disposed between the second ferrule and the socket boot and fixed to the socket housing, and a distance between the second ferrule and the second stop ring are defined. have a second spacer for,
The first spacer and the second spacer are made of a common spacer having the same structure, and are arranged such that the direction with respect to the front end of the first ferrule and the direction with respect to the front end of the second ferrule are opposite to each other,
Either one of the first stop ring and the second stop ring is disposed so as to contact an end surface of the common spacer,
The first stop ring and the other of the second stop ring is an optical connector which is characterized that you have been arranged to fit into the common projection formed on the other end of the spacer.

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