JP2010122527A - Splitter module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a splitter module, facilitating routing of an optical cord in a wiring board. <P>SOLUTION: The splitter module 1 includes a lower casing 2 storing an optical splitter 24 for branching a light signal and an upper casing 3 disposed on the lower casing 2. The front end part of the lower casing 2 is provided with an adapter socket holder 12 fitted to rotate in the vertical direction for holding a quadruple output side adapter socket 11. The front end part of the upper casing 3 is provided with an adapter holder 18 fitted to rotate in the vertical direction for holding a quadruple output side adapter socket 17. A front wall part 5 of the lower casing 2 is provided with a movable holding member 20 fitted to rotate in the longitudinal direction for holding an input side adapter socket 19. Thus the direction of a plug socket of the input side adapter socket 19 can be suitably changed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a splitter module having an optical splitter for branching an optical signal.

The splitter module is housed in, for example, a wiring board installed in an apartment house, and branches an optical signal sent by an optical cable pulled down from an aerial and transmits it to each home. As such a splitter module, for example, as described in Patent Document 1, a core receiving unit that receives an optical cable by branching and a plurality of optical fiber cores branched by the core receiving unit are provided for each optical fiber. A box-shaped splitter module having a connector housing portion connected to a socket is known.
JP 2007-121398 A

  The splitter module as in the above prior art is often provided in a wiring board in an existing building. In this case, since other devices, cables, and the like are already accommodated in the wiring board, it may be time-consuming to handle (wiring) the optical cord connected to the splitter module.

  An object of the present invention is to provide a splitter module that can easily handle optical cords in a wiring board.

  The present invention relates to a splitter module having an optical splitter for branching an optical signal incident from an input-side optical fiber core and emitting it to a plurality of output-side optical fiber cores. A socket holder that holds an output-side optical socket that is attached to the body and connected to a plurality of output-side optical fiber cores, and is rotatably attached to the module housing, and is connected to the input-side optical fiber core wires. And a movable holding member for holding the input side optical socket.

  In such a splitter module of the present invention, when the movable holding member for holding the input side optical socket is rotatably attached to the module housing, the input side light is provided when the splitter module is provided on the wiring board. The direction of the plug receptacle of the input side optical socket to which the cord is connected can be changed as appropriate. For example, in a normal state, when the plug receptacle of the input side optical socket faces the opposite side of the plug receptacle of the output side optical socket, when the input side optical cord is introduced from the same direction as the output side optical cord, the movable holding By rotating the member with respect to the module housing, the plug receptacle of the input side optical socket is directed to the same side as the plug receptacle of the output side optical socket. In this state, the splitter module is mounted in the wiring board so that each optical socket is positioned on the optical cord introduction side. In this case, since the plug receptacle of each optical socket faces the optical cord introduction side, there is no need to bend the optical cord unnecessarily. This makes it easier to handle the optical cord in the wiring board.

  Preferably, the module housing includes a lower housing and an upper housing disposed on the lower housing, and the lower housing and the upper housing include a socket holder for holding the output-side optical socket. Each is attached, the optical splitter is housed in either the lower housing or the upper housing, and the movable holding member is mounted to be rotatable in the horizontal direction with respect to either the lower housing or the upper housing. It has been. In this case, even if the number of branches of the optical splitter is large, it is not necessary to increase the width dimension of the splitter module, and the splitter module can be reduced in size. Moreover, the input side optical fiber core wire can be shortened by attaching the movable holding member holding the input side optical socket so as to be rotatable with respect to the casing in which the optical splitter is accommodated.

  At this time, the socket holder is attached to the same one end side of the lower casing and the upper casing, respectively, and the end position on the mounting side of the socket holder in the lower casing is more than the end position on the mounting side of the socket holder in the upper casing. It is preferable that the protrusion also protrudes. By attaching the socket holder to the same one end side of the lower casing and the upper casing, respectively, when all of the plurality of output-side optical cords connected to the output-side optical socket are introduced from the same direction, the output-side optical cord It becomes easier to handle. In addition, by projecting the end position of the socket holder attachment side in the lower housing from the end position of the socket housing attachment side in the upper housing, depending on the projecting length, the socket holder attached to the lower housing may be Without being covered by the casing, the socket holder can be rotated in the vertical direction with respect to the lower casing.

  Moreover, it is preferable that the socket holder is attached to the lower housing and the upper housing so as to be rotatable in the vertical direction. In such a configuration, for example, when the splitter module is mounted in the wiring board so that the socket holder is on the lower side, the socket holder can be rotated and directed toward the front side (front side). In this case, it becomes easy to insert and remove the optical connector plug attached to the end of the optical cord with respect to the optical socket.

  Furthermore, it is preferable that the upper housing is rotatable in the horizontal direction with respect to the lower housing. In such a configuration, for example, even when a plurality of output-side optical cords are introduced into the wiring board in a state of being divided into halves, the upper housing is placed in a horizontal direction with respect to the lower housing according to the introduction direction. By rotating, it becomes easier to handle each output side optical cord.

  According to the present invention, it becomes easy to route the optical cord connected to the splitter module in the wiring board, so that workability can be improved.

  Hereinafter, a preferred embodiment of a splitter module according to the present invention will be described in detail with reference to the drawings.

  1 and 2 are perspective views showing the appearance of an embodiment of a splitter module according to the present invention. In each figure, the splitter module 1 of the present embodiment includes a lower housing 2 and an upper housing 3 disposed on the lower housing 2.

  As shown in FIG. 3, the lower housing 2 has a substantially box shape with one end side (front end side) opened. The lower housing 2 has a side wall part 4 and a front side wall part 5 and a rear side wall part 6 provided to face the side wall part 4. The front side wall part 5 is provided at a position outside the rear side wall part 6. For this reason, the width dimension of the front side part of the lower housing | casing 2 is larger than the width dimension of the rear side part of the lower housing | casing 2. FIG. The length of the front side wall part 5 is substantially equal to the length of the rear side wall part 6. Cylindrical support shaft portions 7 a and 7 b are provided at the rear end of the front side wall portion 5.

  In the vicinity of the side wall portion 4 in the lower housing 2, a splitter accommodating portion 8 for arranging an optical splitter 24 (see FIG. 8) described later is formed. Between the side wall part 4 and the rear side wall part 6 in the lower housing 2, a cylindrical part 9 for connecting the upper housing 3 to the lower housing 2 so as to be rotatable in the horizontal direction is projected. ing. A rod-shaped shaft portion 10 extending in the width direction of the lower housing 2 is coupled to the inner wall surfaces of the side wall portion 4 and the front side wall portion 5.

  An adapter socket holder 12 that holds the four output-side adapter sockets 11 is attached to the front end side portion of the lower housing 2. The output-side adapter socket 11 has four socket portions 11a on both sides for fitting with optical connector plugs (not shown) attached to the end portions of the optical fiber core wires, and connects the optical fiber core wires to each other. Connector parts. As the output side adapter socket 11, for example, an SC type adapter socket is used.

  The adapter socket holder 12 is attached to the lower housing 2 so as to be rotatable in the vertical direction. Specifically, a support portion (not shown) provided at the rear portion of the adapter socket holder 12 is engaged with the rod-shaped shaft portion 10 of the lower housing 2, so that the adapter socket holder 12 is centered on the rod-shaped shaft portion 10. As a shaft, it can be rotated in the vertical direction with respect to the lower housing 2.

  As shown in FIG. 3, the upper housing 3 has a substantially box shape with one end side (front end side) opened. The longitudinal dimension of the upper casing 3 is shorter than the longitudinal dimension of the lower casing 2. The upper housing 3 has side wall portions 13 and 14. Moreover, the upper housing | casing 3 has the cover part 3a which covers the area | region except the front side part. The width dimension of the upper casing 3 is equal to the width dimension of the front portion of the lower casing 2.

  On the bottom surface of the upper housing 3, a projection (not shown) that fits into the cylindrical portion 9 of the lower housing 2 is provided. A rod-shaped shaft portion 16 extending in the width direction of the upper housing 3 is coupled to the inner wall surfaces of the side wall portions 13 and 14 in the front end side portion of the upper housing 3.

  An adapter socket holder 18 that holds the four output-side adapter sockets 17 is attached to the front end side portion of the upper housing 3. The output side adapter socket 17 is exactly the same as the output side adapter socket 11 described above, and has four socket portions 17a on each side. The adapter socket holder 18 is exactly the same as the adapter socket holder 12 described above.

  The adapter socket holder 18 is attached to the upper housing 3 so as to be rotatable in the vertical direction. The structure for rotating the adapter socket holder 18 is the same as the structure for rotating the adapter socket holder 12 described above. That is, a support portion (not shown) provided at the rear portion of the adapter socket holder 18 engages with the rod-shaped shaft portion 16 of the upper housing 3, so that the adapter socket holder 18 is located at the upper portion with the rod-shaped shaft portion 16 as a central axis. It is possible to rotate in the vertical direction with respect to the housing 3.

  As a result, as shown in FIG. 4, the plug receptacles of the socket portions 17 a of the output side adapter socket 17 held by the adapter socket holder 18 can be directed upward with respect to the lower housing 3.

  A protrusion (not shown) provided on the bottom surface of the upper housing 3 is inserted into a cylindrical portion 9 provided on the lower housing 2 so that the upper housing 3 is disposed on the lower housing 2. The Rukoto.

  Further, as described above, since the length dimension of the upper casing 3 is shorter than the length dimension of the lower casing 2, the front end position of the lower casing 2 is protruded from the front end position of the upper casing 3. . The protruding length of the lower housing 2 relative to the upper housing 3 is such that the adapter socket holder 12 attached to the lower housing 2 is not covered by the upper housing 3.

  Therefore, since the adapter socket holder 12 can be rotated in the vertical direction with respect to the lower housing 2, each socket portion 11 a of the output-side adapter socket 11 held by the adapter socket holder 12 as shown in FIG. 4. The plug receptacle can be directed upward with respect to the lower housing 2.

  A movable holding member 20 that holds the input-side adapter socket 19 is rotatably attached to the front side wall portion 5 of the lower housing 2. The input-side adapter socket 19 has one socket portion 19a on each side for fitting with an optical connector plug attached to the end portion of the optical fiber core wire. Here, an SC type adapter socket is used as the input side adapter socket 19.

  As shown in FIG. 3, the movable holding member 20 is a member having an L-shaped cross section having a side wall portion 21. A cylindrical support shaft portion 22 is provided at one end portion (base end portion) of the side wall portion 21. A holding wall portion 23 for holding the input side adapter socket 19 in cooperation with the side wall portion 21 is opposed to the side wall portion 21 at the distal end side (opposite side of the support shaft portion 22) of the movable holding member 20. Is provided.

  The length dimension of the movable holding member 20 is substantially equal to the length dimension of the rear side wall portion 6 of the lower housing 2. As described above, the rear side wall 6 of the lower housing 2 is provided at a position inside the front side wall 5 because the movable holding member 20 is accommodated in the rear portion of the lower housing 2. It is for forming.

  The movable holding member 20 penetrates a hinge pin (not shown) through the support shaft portions 7a, 7b, 22 in a state where the support shaft portion 22 is disposed between the support shaft portions 7a, 7b of the lower housing 2. By doing so, as shown in FIG. 5, it can be rotated in the horizontal direction with respect to the lower housing 2. That is, as shown in FIGS. 1 and 2, the movable holding member 20 has a side wall portion 21 from the housing housing position covered by the upper housing 3 as shown in FIG. It can be rotated 180 degrees in the front-rear direction to a position where it abuts on the portion 5. At this time, the movable holding member 20 is configured to be able to be held (still) at an arbitrary angle with respect to the lower housing 2 by, for example, using a hinge structure for the hinge pin.

  As shown in FIG. 6, the upper housing 3 can be rotated 360 degrees horizontally with respect to the lower housing 2 around the cylindrical portion 9 of the lower housing 2. The upper housing 3 can be held at an arbitrary angle with respect to the lower housing 2.

  As shown in FIG. 7, an optical splitter 24 for branching an optical signal into a plurality of branches (here, eight branches) is housed and fixed in the splitter housing portion 8 of the lower housing 2. An input side optical fiber core wire 25 is connected to one end of the optical splitter 24, and a plurality (eight in this case) of output side optical fiber core wires 26 are connected to the other end of the optical splitter 24. As a result, the optical signal incident from the input side optical fiber core 25 is branched by the optical splitter 24 and emitted to each output side optical fiber core 26.

  An optical connector plug 27 is attached to the distal end portion of the input side optical fiber core 25, and this optical connector plug 27 is fitted into a socket portion 19 a on one side (inside the casing) of the input side adapter socket 19. . An optical connector plug 28 is attached to the distal end portion of each output side optical fiber core 26, and these optical connector plugs 28 are connected to the socket portions 11a on one side (inside the casing) of the output side adapter sockets 11 and 17, respectively. 17a, respectively.

  At this time, the movable holding member 20 that holds the input adapter socket 19 is rotatably attached to the lower housing 2 in which the optical splitter 24 is accommodated. Thereby, the length of the input side optical fiber core wire 25 can be shortened.

  The splitter module 1 configured as described above is provided in a main wiring board, a distribution board (hereinafter collectively referred to as a wiring board) installed on a wall in a building such as an apartment house. Specifically, for example, the splitter module 1 is attached to a predetermined space in the wiring board, and the input side optical cord is connected to the socket portion 19a on the other side (outside the casing) of the input side adapter socket 19 to connect a plurality of pieces. The output side optical cord is connected to the sockets 11a and 17a on the other side (outside of the casing) of the output side adapter sockets 11 and 17 by connectors.

  At this time, when many other devices, cables, and the like are already accommodated in the wiring board, it is difficult to secure an accommodation space for attaching the splitter module 1. Cord handling (wiring) may be difficult.

  However, since the splitter module 1 of the present embodiment has a two-stage upper and lower structure having the lower casing 2 and the upper casing 3, the width dimension of the splitter module 1 despite the large number of branches of the optical splitter 24. The splitter module 1 is downsized. For this reason, for example, even if the accommodation space in the wiring board is limited, the splitter module 1 can be attached.

  Moreover, since the movable holding member 20 which holds the input side adapter socket 19 is attached to the lower housing 2 so as to be able to rotate 180 degrees in the front and rear directions, the orientation of the plug receptacle of the input side adapter socket 19 can be changed as necessary. Can be adjusted accordingly.

  For example, when the input side optical cord and the output side optical cord are introduced into the wiring board from opposite sides, the movable holding member 20 is arranged at the housing accommodation position as shown in FIGS. The plug receiving port of the input side adapter socket 19 connected to the input side optical cord with the connector is directed to the opposite side of the plug receiving port of the output side adapter sockets 11 and 17 connected to the output side optical cord with the connector.

  Further, when the input side optical cord and the output side optical cord are introduced into the wiring board from the same side, as shown in FIG. 5B, the movable holding member 20 is rotated 180 degrees from the housing accommodation position. Thus, the plug receptacle of the input side adapter socket 19 connected to the input side optical cord and the connector is directed to the same side as the plug receptacles of the output side adapter sockets 11 and 17 connected to the output side optical cord and the connector.

  For example, when the splitter module 1 is attached to the wiring board so that the output side adapter sockets 11 and 17 are on the lower side, if the input side adapter socket 19 is positioned on the upper side, the input side introduced into the wiring board In order to connect the optical cord to the input-side adapter socket 19, it is necessary to bend the input-side optical cord into a U shape. At this time, when the splitter module 1 is attached to the left corner of the wiring board, the input side optical cord introduced from the lower side may not be connected to the input side adapter socket 19 by a connector. Even if the input-side optical cord can be connected to the input-side adapter socket 19, the input-side optical cord is forcibly bent, so that the input-side optical cord is damaged. Therefore, in such a case, by directing the plug receptacle of the input adapter socket 19 to the same side as the plug receptacles of the output adapter sockets 11, 17, the input side optical cord introduced into the wiring board is forcedly forced. The input side optical cord can be connected to the input side adapter socket 11 by a connector without bending.

  Also, for example, when the output side optical cord is introduced into the wiring board from the lower side and the input side optical cord is introduced from the lateral side (right side) into the wiring board, there is sufficient storage space in the wiring board. 5A, by rotating the movable holding member 20 by 90 degrees from the housing housing position, the plug receiving port of the input side adapter socket 19 connected to the input side optical cord is connected to the output side. The output adapter sockets 11 and 17 connected to the optical cord and the connector are oriented perpendicularly to the plug receptacles.

  Thus, the direction of the plug receptacle of the input side adapter socket 19 can be freely changed according to the accommodation situation of the devices and cables in the wiring board, so that the input side optical cord can be input without unnecessary routing. The side optical cord can be easily connected to the input adapter socket 19 by a connector. This facilitates the handling (wiring) of the input side optical cord and the output side optical cord in the wiring board, so that the workability of installing the splitter module 1 can be improved.

  When the splitter module 1 is attached to the wiring board so that the output side adapter sockets 11 and 17 are on the lower side, the adapter socket holders 12 and 18 are attached to the lower casing 2 and the upper casing 3 as shown in FIG. , The plug receptacles of the output side adapter sockets 11 and 17 are directed toward the front side. This makes it easy to insert / remove the optical connector plug attached to the tip of the output side optical cord with respect to the output side adapter sockets 11 and 17. Therefore, the workability of installing the splitter module 1 can be further improved.

  Further, for example, when a plurality of output side optical cords are introduced side by side into the wiring board, or are divided into two predetermined pieces and introduced into the wiring board, as shown in FIG. By rotating the housing 3 to the left and right with respect to the lower housing 2, the optical connector plug attached to the distal end of the output side optical cord is connected to the output side adapter without performing unnecessary routing of the output side optical cord. It can be inserted into the sockets 11 and 17. Further, for example, if the output side optical cords are wired together, a load (rigidity) is applied to these output side optical cords. Therefore, the upper casing 3 is rotated left and right with respect to the lower casing 2. Thus, it is possible to distribute (reduce) the load applied to each output-side optical cord.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, the movable holding member 20 that holds the input-side adapter socket 19 is rotatably attached to the lower housing 2, but the movable holding member 20 is rotatably attached to the upper housing 3. It is good also as a structure. In this case, it is desirable to accommodate the optical splitter 24 in the upper housing 3 in order to shorten the input side optical fiber core wire 25 that connects the input side adapter socket 19 and the optical splitter 24.

  Further, in the above embodiment, the movable holding member 20 is rotatable in the horizontal direction with respect to the lower housing 2 around the support shaft portion 22 parallel to the vertical direction (thickness direction) of the lower housing 2. However, as shown in FIGS. 8 and 9, it may be rotatable about a support shaft 30 parallel to the width direction of the lower housing 2.

  Furthermore, the splitter module 1 of the above embodiment has an upper and lower two-stage structure having an upper housing 2 and a lower housing 3, but when the number of branches of the optical splitter 24 is small (in the above embodiment, four branches). ), In particular, the splitter module casing (module casing) may be one instead of having a two-stage structure.

It is a perspective view which shows the external appearance of one Embodiment of the splitter module which concerns on this invention. It is a perspective view which shows an external appearance when the splitter module shown in FIG. 1 is seen from the opposite side. FIG. 3 is an exploded perspective view of a lower housing, an upper housing, and a movable holding member shown in FIGS. 1 and 2. It is a perspective view which shows the state which rotated the adapter socket holder shown in FIG. 1 upwards with respect to the housing | casing. It is a perspective view which shows the state which rotated the movable holding member shown in FIG. 1 ahead with respect to the lower housing | casing. It is a perspective view which shows the state which rotated the upper housing | casing shown in FIG. 1 to the left with respect to the lower housing | casing. It is a top view which shows the wiring state inside a lower housing | casing and a movable holding member shown in FIG. It is a perspective view which shows the external appearance of other embodiment of the splitter module which concerns on this invention. FIG. 9 is an exploded perspective view of the lower housing and the movable holding member shown in FIG. 8.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Splitter module, 2 ... Lower housing | casing (module housing | casing), 3 ... Upper housing | casing (module housing | casing), 11 ... Output side adapter socket (output side optical socket), 12 ... Adapter socket holder, 17 ... Output side Adapter socket (output side optical socket), 18 ... Adapter socket holder, 19 ... Input side adapter socket (input side optical socket), 20 ... Movable holding member, 24 ... Optical splitter, 25 ... Input side optical fiber core wire, 26 ... Output side optical fiber.

Claims (5)

In a splitter module having an optical splitter that branches an optical signal incident from an input side optical fiber core and emits it to a plurality of output side optical fiber cores,
A module housing that houses the optical splitter;
A socket holder that is attached to the module housing and holds an output-side optical socket connected to the plurality of output-side optical fibers;
A splitter module comprising: a movable holding member that is rotatably attached to the module housing and holds an input side optical socket connected to the input side optical fiber core wire. The module housing has a lower housing and an upper housing disposed on the lower housing,
The lower housing and the upper housing are each attached with the socket holders for holding the output side optical socket,
The optical splitter is housed in either the lower housing or the upper housing,
The splitter module according to claim 1, wherein the movable holding member is attached to the one of the lower housing and the upper housing so as to be rotatable in a horizontal direction. The socket holders are respectively attached to the same one end side of the lower housing and the upper housing,
3. The splitter module according to claim 2, wherein an end position on the attachment side of the socket holder in the lower casing protrudes from an end position on the attachment side of the socket holder in the upper casing.   4. The splitter module according to claim 2, wherein the socket holder is attached to the lower housing and the upper housing so as to be rotatable in the vertical direction. The splitter module according to any one of claims 2 to 4, wherein the upper casing is rotatable in a horizontal direction with respect to the lower casing.

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