JP2009064044A - Optical outlet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To protect the connecting section of optical fibers from dust and moisture or the like and to improve workability at a work site. <P>SOLUTION: An external casing comprises a main case 10 having an opening section at the front and a sub-case 20 which is to be mounted in the front opening section of the main case 10. Moreover, an optical fiber adaptor 30 having a connector connecting section 21231, to which a connector provided at one end of an equipment side optical fiber is to be connected, and a holding member 50 on which the optical fiber adaptor 30 is to be mounted and is to be mounted inside the main case 10, are included. A first engaging section comprising a fitting groove 51 and a fitting protruding part 32, which are engaged together by a fitting operation, are provided between the holding member 50 and the optical fiber adaptor 30 and the optical fiber adaptor 30 is mounted onto the holding member 50 through the first engaging section. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an optical outlet for optically connecting a trunk-side optical fiber installed on a wall surface in a home and used for in-home wiring with a device-side optical fiber extending from an optical fiber connecting device placed in the home.

Along with the development of optical communication technology, there is an increasing number of users who are demanding a new construction of a facility such as a LAN line using an optical fiber cable (hereinafter sometimes simply referred to as “optical fiber”) in a general house. Yes.
With the development of ultra-high-speed Internet connection technology, so-called FTTH (Fiber To The Home), an Internet connection service using an optical fiber cable (hereinafter sometimes simply referred to as “optical fiber”) as an access line in ordinary homes. ) Is being introduced.
In order to promote the spread of optical fiber in-house wiring to ordinary homes, it is essential to develop indoor wiring equipment (that is, optical outlets) that can easily connect optical fibers in each room in the house.

  Under such circumstances, optical outlets having various structures have been proposed in recent years (see, for example, Patent Documents 1 and 2). However, these conventional optical outlets have not been fully studied for various problems that may occur in actual facility locations.

  For example, the connecting portion of the optical fiber is configured by a relay adapter called a relay jack type optical connector, an optical adapter, an optical receptacle, etc., and if dust or moisture enters the inside of the relay adapter, The information transmission function may be impaired. However, the conventional optical outlet has a configuration in which the connecting portion of the optical fiber is exposed on the back side (inside the wall) (see Patent Document 2) or is simply covered with an embedded box (Patent Document 1). reference). Dust and moisture easily enter the walls of the house from the outside. Therefore, even if the connector of the optical fiber cable is inserted into the relay adapter, dust and moisture in the wall enter from a slight gap between the relay adapter and the connector, and the information transmission function of the optical fiber is impaired. There was a fear.

Furthermore, the optical fiber connected by the optical outlet is an extremely delicate part compared to the electrical cable used for general indoor wiring, so it must be handled with care, but the workability during construction is taken into consideration. There are few things. If the workability at the time of construction is poor, there is a high possibility that the tip end face of the optical fiber will be damaged or that it will be forcibly damaged by bending stress.
Japanese Unexamined Patent Publication No. 63-257701 JP-A-1-297604

  The present invention has been made in view of the above-described circumstances, and an object thereof is to protect the connection portion of the optical fiber from dust, moisture, and the like, and to improve workability at a construction site.

In order to achieve the above object, the present invention optically connects a trunk-side optical fiber installed on a wall surface in a house and used for in-home wiring with a device-side optical fiber extending from an optical fiber connection device placed in the house. An optical outlet to connect,
An external housing composed of a main case having an opening on the front and a sub case attached to the front opening of the main case;
An optical fiber connecting member for connecting the main optical fiber and the equipment optical fiber,
An optical fiber connecting member is mounted, and a holding member mounted inside the main case is provided.

  In the present invention configured as described above, since the optical fiber connecting member is housed in the outer casing constituted by the main case and the sub case, the optical fiber is transmitted from factors that adversely affect the information transmission function of the optical fiber such as dust and moisture. The fiber connection can be protected.

Furthermore, the present invention is characterized in that a first engaging portion is provided between the holding member and the optical fiber connecting member, and the optical fiber connecting member is attached to the holding member via the first engaging portion. .
For example, the first engaging portion includes a dovetail-shaped fitting groove formed on one of the holding member and the optical fiber connecting member, and a fitting convex formed on the other and slide-fitted into the fitting groove. It can be composed of parts.
Further, the first engaging portion is constituted by a locking groove formed in one of the holding member and the optical fiber connecting member and an engaging leg portion formed in the other and engaged with the locking groove. You can also.
As a result, the optical fiber connecting member can be attached to the holding member only by a simple fitting operation without using a tool, and the workability on the construction site is extremely good.

Further, according to the present invention, a second engagement portion that engages with a fitting operation is provided between the main case and the holding member, and the holding member is attached to the main case via the second engagement portion. Features. For example, the second engaging portion is constituted by a locking claw formed on one of the main case and the holding member and an engagement piece formed on the other and elastically engaging with the locking claw. be able to.
As a result, the holding member can be attached to the main case by a simple fitting operation without requiring a tool, and the workability at the construction site is further improved.

The present invention includes a guide member that guides and supports the trunk side optical fiber inside the outer casing,
The holding member may be configured such that this guide member is also mounted.
Here, the guide member is configured to have a cylindrical guide body around which the trunk side optical fiber is wound, and mounting shafts protruding from both end faces of the guide body, while the mounting shaft is fitted into the holding member. A bearing part is formed.
If comprised in this way, a guide member can be attached to a holding member by simple operation which does not require a tool and only fits the mounting shaft of a guide member in the bearing part of a holding member, and workability on a construction site is improved. Very good.

The holding member may have a curved guide portion that guides and supports the trunk-side optical fiber inside the external housing.
If comprised in this way, a number of parts will reduce and also the operation | work which mounts a guide member to a holding member as mentioned above will become unnecessary, and workability | operativity in a construction site will improve further.

  The guide member and the guide part have a function of avoiding a situation where the optical fiber on the main line side is forcibly bent beyond the allowable range due to the action of bending stress.

  The holding member can be assembled and integrated with the main case, and can be configured to be rotatable with respect to the main case. By comprising in this way, the complexity of the assembly work accompanying the dispersion | variation in a component is eliminated, and the handling at a construction site becomes easy.

The present invention comprises a main member-side optical fiber insertion port on the back surface of the main case, and a seal member that closes a gap between the main line-side optical fiber drawn from the insertion port and the insertion port. You can also
By comprising in this way, the penetration | invasion of the dust and moisture into the external housing | casing from an insertion port can be interrupted | blocked.

  Here, according to the present invention, the main case is formed with the seal member arrangement portion continuous with the insertion port, and the holding member is formed with a pressing portion that presses and holds the seal member arranged in the arrangement portion. The seal member pressed and held by the pressing portion to the arrangement portion may be configured to contact the insertion port and close the insertion port.

Further, the main case may be formed with a notch portion continuous with the insertion port, and an optical fiber connector attached to the main optical fiber can be inserted from the notch portion. In this case, the holding member is preferably formed with a back cover part that closes the notch part.
By forming a notch, one end of the trunk side optical fiber is terminated with an optical fiber connector, and then the connector is led inward from the back side of the main case through the notch and connected to the optical fiber connecting member. It becomes possible.

If the main case is formed of a transparent plastic material, the arrangement state of the seal member on the arrangement portion can be visually recognized from the outside.
In addition, if the holding member is provided with a temporary holding part to which the seal member can be detachably attached, and the seal member is attached to the temporary holding part at the time of shipment from the factory, the seal member, which is a fine part, can be transported or on site. Can be lost.

According to the optical outlet of the present invention, it is possible to optically connect the optical fiber on the equipment side and the main line side, one end of which is preliminarily processed by the male optical fiber connector.
In this case, it is preferable that the optical fiber connecting member is composed of an optical fiber adapter that can connect and connect the male optical fiber connectors from opposite directions.

In addition, according to the optical outlet of the present invention, it is possible to optically connect the equipment side optical fiber whose one end is preliminarily treated with the male optical fiber connector and the main line side optical fiber.
In this case, it is preferable that one end of the trunk-side optical fiber is terminated in advance with a female optical fiber connector, and the optical fiber connecting member is configured with the female optical fiber connector.

The present invention is an optical outlet that is optically connected to a device-side optical fiber that extends from an optical fiber connection device that is installed in a home and is used for home wiring and is installed on a wall surface of the home,
An external housing including a main case having an opening on the front surface, a sub case attached to the front opening of the main case, and a back case attached to the back of the main case;
An optical fiber connecting member for connecting the main optical fiber and the equipment optical fiber,
The optical fiber connecting member is mounted, and a holding member mounted inside the main case can be provided.

  Even in such a configuration, since the optical fiber connection member is housed in the outer casing composed of the main case, the sub case, and the back case, factors that adversely affect the information transmission function of the optical fiber such as dust and moisture From this, it is possible to protect the connection portion of the optical fiber.

  Here, the optical fiber connecting member can be constituted by an optical fiber jack from which a connecting optical fiber of an arbitrary length for connecting the main line side optical fiber extends.

In that case, the main case has an outlet that guides the connecting optical fiber to the rear side, and the rear case is mounted on the rear surface of the main case so as to cover the outlet, and the insertion port for the trunk side optical fiber is provided. And a seal member that closes a gap between the main line side optical fiber passing through the insertion port and the insertion port.
By comprising in this way, the penetration | invasion of the dust and moisture into the external housing | casing from an insertion port can be interrupted | blocked.

In addition, the rear case is formed with an arrangement portion of the seal member continuous with the insertion port, and the arrangement portion of the seal member is formed on the rear surface of the main case so as to face the arrangement portion, and is sandwiched between these arrangement portions. It is preferable that the sealing member arranged as described above is configured to contact the insertion port and close the insertion port.
Thereby, positioning of a sealing member can be performed easily and position shift of a sealing member can be prevented.

Furthermore, the main line side optical fiber fixing means for fixing the main line side optical fiber in the vicinity of the arrangement portion of the seal member can be provided on the back surface of the main case. Further, the main case can be formed with a surplus length winding portion capable of winding and holding the surplus length portions of the connection optical fiber and the main line side optical fiber on the back surface.
With such a configuration, it is possible to easily perform the extra length processing of the connecting optical fiber and the trunk side optical fiber.
In addition, it is preferable to provide a pop-out preventing claw on the outer periphery facing the surplus winding portion.

Moreover, it is preferable that the optical outlet of the present invention includes a reinforcing sleeve that covers and reinforces the connecting portion between the connecting optical fiber and the connecting portion of the trunk side optical fiber.
In this case, the main case is formed with a sleeve accommodating portion for accommodating and arranging the reinforcing sleeve on the back surface. Furthermore, it is preferable that the sleeve storage portion is provided with a sleeve fixing means for fixing the reinforcing sleeve.

The holding member may have a curved guide portion that guides and supports the connection optical fiber inside the external housing.
If comprised in this way, a number of parts will reduce and also the operation | work which mounts a guide member to a holding member as mentioned above will become unnecessary, and workability | operativity in a construction site will improve further.
In addition, the said guide part has a function which avoids the situation where the optical fiber by the side of a trunk line is bent more than an allowable range by the effect of bending stress.

  The holding member can be assembled and integrated with the main case, and can be configured to be rotatable with respect to the main case. By comprising in this way, the complexity of the assembly work accompanying the dispersion | variation in a component is eliminated, and the handling at a construction site becomes easy.

In the optical outlet of the present invention described above, the external casing is formed to have a size that can be attached to a standardized wiring fixture mounting frame on which a wiring fixture such as a switch or an outlet is mounted. It can be set as the structure containing the attaching part to match.
By configuring in this way, an optical outlet can be provided on a wall surface in the house using an existing standardized wiring fixture mounting frame, similarly to a wiring fixture such as a switch or an outlet.
Note that the basic dimensions and the like of the wiring fixture mounting frame are standardized, for example, in Japan Industrial Standard (JIS).

  As described above, according to the present invention, it is possible to protect the connection portion of the optical fiber from dust, moisture, and the like, and to improve workability at the construction site.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
<< First Embodiment >>
1 to 10 are diagrams showing the configuration of the optical outlet according to the first embodiment of the present invention. FIG. 1 shows a completed state in which each part is incorporated, and FIG. 2 shows a state in which each part is disassembled. FIG. 3 shows the facility situation on the wall surface of the optical outlet. 4 to 10 show the respective components of the optical outlet.

  As shown in FIG. 2, the optical outlet according to the present embodiment includes a main case 10, a sub case 20 (also referred to as a cover), an optical fiber adapter 30 (optical fiber connection member), a guide member 40, and a holding member 50. The main part is composed.

The main case 10 and the sub case 20 are parts that constitute an external casing of the optical outlet. As shown in FIG. 4, the main case 10 has an opening at the front, and other components (such as the holding member 50) are incorporated into the inside from the front opening. A plurality of locking claws 11 are formed on the outer surface of the main case 10.
As shown in FIG. 5, the sub case 20 has an open back surface, and a plurality of engagement pieces 21 protrude from the peripheral edge of the back opening portion. These engaging pieces 21 have a notch hole 21a in the center portion of the plane, and can be flexed flexibly.
The sub case 20 is attached to the main case 10 such that the rear opening is aligned with the front opening of the main case 10. At this time, the edge part of the notch hole 21a formed in each engagement piece 21 of the sub case 20 engages with the latching claw 11 of the main case 10, and the main case 10 and the sub case 20 are integrated. As a result, a box-shaped external housing is formed.
The optical fiber adapter 30, the guide member 40, and the holding member 50 are incorporated in an external housing configured by the main case 10 and the sub case 20.

An insertion port 12 through which the main line side optical fiber 62 is inserted is formed on the back side of the main case 10. On the other hand, the insertion port 22 for the device-side optical fiber 70 is formed on the front side of the sub case 20.
Here, the “main line side optical fiber” is an optical fiber used for home wiring, and one end is disposed inside the optical outlet and the other end is routed around the wall etc. Connected. The “apparatus-side optical fiber” is an optical fiber that connects an optical fiber connection device installed in a room in the house and the optical outlet.

  The main line side optical fiber 62 and the equipment side optical fiber 70 used in the present embodiment are provided with connectors 63 and 71 at one end (see FIG. 7). Each of the connectors 63 and 71 is a male optical fiber connector. For example, a general-purpose optical fiber connector referred to as an SC connector can be applied to the male optical fiber connector.

  As shown in FIG. 6, the optical fiber adapter 30 has a cylindrical configuration, and a connector connecting portion 31 is formed in the hollow portion. As shown in FIG. 7, the optical fiber adapter 30 can be inserted from the direction in which the connectors 63 and 71 of the trunk side optical fiber 62 and the equipment side optical fiber 70 face each other. It has a function as an optical fiber connecting member for optically connecting 63 and 71.

  On the outer back surface of the optical fiber adapter 30, as shown in FIGS. 6B, 6C, and 6G, fitting convex portions 32 having wedges on both sides are formed. This fitting convex part 32 is extended in the up-down direction of FIG.6 (g), and the latching claw 33 which elastically bends in the center part of the back surface protrudes.

  As shown in FIG. 8, the guide member 40 includes a cylindrical guide main body 41 and mounting shafts 42 protruding from the center portions of both end faces of the guide main body 41. As shown in FIG. 1, the outer peripheral surface of the guide main body 41 has a function of winding and supporting the trunk side optical fiber 62. As shown in FIG. 8, a guide groove 41a is formed in the circumferential direction on the outer peripheral surface of the guide main body 41, and the main line side optical fiber 62 is simply wound around the guide groove 41a. 62 can be easily and properly carried out.

The holding member 50 has a function as a base for mounting the optical fiber adapter 30 and the guide member 40 to the main case 10.
As shown in FIG. 9, the holding member 50 has a dovetail fitting groove 51 formed on the front surface of the box-shaped main body. The fitting groove 51 extends in the vertical direction of FIG. 9A, and the fitting state can be formed by fitting the fitting convex portion 32 of the optical fiber adapter 30 from the upper end side and sliding it downward. . The fitting groove 51 and the fitting convex portion 32 constitute a first engaging portion for attaching the optical fiber adapter 30 to the holding member 50.
In this embodiment, as shown to Fig.9 (a), the two fitting grooves 51 and 51 are formed side by side, and the optical fiber adapter 30 can be attached to each.

  A notch engaging portion 52 is formed at the center of the bottom surface of the fitting groove 51. When the fitting convex portion 32 is slidably fitted into the fitting groove 51, the engagement claw 33 of the optical fiber adapter 30 is engaged with the notch engaging portion 52, and the fitting convex portion 32 from the fitting groove 51 is engaged. Is controlled (see FIG. 6H). In addition, the notch engaging part 52 penetrates the back surface of the holding member 50, and the engagement state of the locking claw 33 with respect to the notch engaging part 52 is released by pushing out the locking claw 33 from the back surface side. Can do.

  9A, 9C, and 9D, support arms 53 extend upward from both sides of the upper surface of the main body, and the upper ends of the support arms 53 have a concave shape. The bearing portion 54 is formed. The mounting shaft 42 of the guide member 40 shown in FIG. With this fitting operation, the guide member 40 can be attached to the holding member 50.

Further, the holding member 50 is formed with a plurality of locking claws 55 on the outer surface (see FIG. 9C). On the other hand, as shown in FIG. 4D, a plurality of engagement pieces 13 are formed in the main case 10 so as to protrude to the front side. These engagement pieces 13 have a notch hole 13a in the center portion of the plane, and can be flexed flexibly.
When the holding member 50 is fitted into the region surrounded by the engagement pieces 13 provided in the main case 10 from the front side, the edges of the cutout holes 13a formed in the respective engagement pieces 13 of the main case 10 are held. The member 50 is elastically engaged with the locking claw 55 of the member 50. With this operation, the holding member 50 is attached to the main case 10. That is, the locking claw 55 of the holding member 50 and the engaging piece 13 of the main case 10 constitute a second engaging portion for mounting the holding member 50 to the main case 10.

  FIGS. 10A to 10C show the transparent window 80 attached to the sub case 20. The front side of the sub case 20 is notched near the insertion port 22 of the device-side optical fiber 70 (see FIG. 5D), and a transparent window 80 is attached to the notch. Through this transparent window 80, the connector 71 of the device-side optical fiber 70 inserted into the insertion port 22 can be seen.

FIGS. 10D to 10F show the mounting bracket 81 attached to the sub case 20. The mounting bracket 81 is attached to both sides of the sub case 20 as shown in FIG.
In the optical outlet according to the present embodiment, the external casing constituted by the main case 10 and the sub case 20 can be attached to a standardized wiring fixture mounting frame 100 to which a wiring fixture such as a switch or an outlet is attached. Dimensional shape is formed.
The mounting bracket 81 has a mounting portion that engages with the standardized wiring fixture mounting frame 100. By engaging this mounting portion with the wiring fixture mounting frame 100, as shown in FIG. In addition, the optical outlet 1 according to the present embodiment can be installed on the wall surface 101 of the home via the wiring fixture mounting frame 100 as in the case of wiring appliances such as switches and outlets.

Next, an example of an optical fiber home construction method using the optical outlet of the present embodiment will be described (see FIGS. 1 to 3).
First, the attachment port 102 is opened in the indoor wall surface 101 or the like where the optical outlet is installed. The main optical fiber 62 is inserted into the wall from the attachment port 102 from one end where the termination is not performed, and the inside of the wall, under the floor, or ceiling is routed to the drawing cabinet installed on the outer wall of the building. Store one end in the cabinet.

Next, the connector 63 provided at the other end of the main optical fiber 62 is inserted into the optical fiber adapter 30, and the fitting convex portion 32 of the optical fiber adapter 30 is slid into the fitting groove 51 of the holding member 50. The optical fiber adapter 30 is attached to the holding member 50.
Subsequently, the trunk side optical fiber 62 is wound along the guide groove 41 a on the outer peripheral surface formed in the guide main body 41 of the guide member 40, and the mounting shaft 42 of the guide member 40 is fitted into the bearing portion 54 of the holding member 50.
Thereby, the optical fiber adapter 30 and the guide member 40 are attached to the holding member 50, and these members are integrated. In this state, when the holding member 50 is fitted inside the engaging piece 13 provided on the main case 10, the engaging claw 55 of the connecting member is engaged with the engaging piece 13, and the holding member 50 is attached to the main case 10. Is installed.

After that, the mounting operation of the optical outlet 1 is completed by mounting the sub case 20 on the front side of the main case 10 with the mounting bracket 81 mounted on the sub case 20. The transparent window 80 is attached to the sub case 20 in advance.
The optical outlet 1 assembled in this manner is mounted on the wiring fixture mounting frame 100 as shown in FIG. 3 and, like the wiring fixture, using a fastener 103 such as a support fitting or a screw, The wiring device mounting frame 100 is attached to the opened mounting opening 102. In this way, the optical outlet 1 is installed on the wall surface 101 in the room. Finally, the decorative plate 104 is mounted around the optical outlet 1, and the facility work is completed (see FIG. 3B).

<< Second Embodiment >>
11 to 17 are views showing the configuration of the optical outlet according to the second embodiment of the present invention. FIG. 11 shows a completed state in which each part is incorporated, and FIG. 12 shows a state in which each part is disassembled. ing. 13 to 17 show components of the optical outlet.
In the optical outlet according to the present embodiment, the same or corresponding parts as those of the optical outlet according to the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 12, the optical outlet according to the present embodiment includes a main case 10, a sub case 20, a holding member 50, and an optical fiber adapter 30 (optical fiber connection member).
In the optical outlet of the present embodiment, a guide portion 56 that guides and supports the main optical fiber 62 is integrally formed on the upper portion of the holding member 50, thereby reducing the number of components.
As shown in FIG. 15, the guide portion 56 has a curved outer peripheral surface, and the trunk side optical fiber 62 extending from the optical fiber adapter 30 is guided and supported by the outer peripheral surface on the back surface of the main case 10. It guide | induces to a certain insertion port 12 (refer FIG.11 (b)).

In the present embodiment, a plastic optical fiber generally called POF is used as the device-side optical fiber 62. The connector 63 provided at one end of the optical fiber 62 and the optical fiber adapter 30 for connecting the connector 63 are: The structure is suitable for such a POF optical fiber (see FIGS. 16 and 17). Generally, this optical fiber for POF is used for LAN wiring for connecting between rooms in a house or equipment.
The device-side optical fiber used in the first embodiment uses a silica-based glass optical fiber suitable for FTTH, and the optical fiber connector 60 and the optical fiber adapter 30 for connecting the optical fiber connector are as follows: The structure is suitable for such a silica glass optical fiber suitable for FTTH (see FIGS. 6 and 7).
However, the present invention is not limited to the type of optical fiber, and the optical outlet having the structure shown in the first embodiment can be configured to be connected to an optical fiber for POF. The optical outlet shown in the embodiment can be configured to be connected to a silica-based glass optical fiber suitable for FTTH.

In this embodiment, as shown in FIGS. 16 (f) and 16 (g), two engaging legs 35 having spring properties are provided so as to protrude from the outer back portion of the optical fiber adapter 30. The front end of the engaging leg 35 is curved like a bowl.
On the other hand, two fitting grooves 51 are formed side by side on the front surface of the holding member 50 as shown in FIGS. 15 (a) and 16 (g). These fitting grooves 51 extend in the vertical direction in FIG. 16A, and are fitted by fitting the hook-like portions of the respective engaging legs 35 formed on the optical fiber adapter 30 from the upper end side and sliding them downward. A combined state can be formed (see FIG. 16G).
In the present embodiment, the fitting groove 51 and the engagement leg portion 35 constitute a first engagement portion for attaching the optical fiber adapter 30 to the holding member 50.

In the present embodiment, a two-core optical fiber adapter 30 is used. As shown in FIG. 16C, the two-core optical fiber adapter 30 is formed with two connector connection portions 31 and 31 in the hollow portion, and the main line side optical fiber is connected to each connector connection portion 31 and 31, respectively. 62 and the connectors 63 and 71 of the device-side optical fiber 70 can be inserted from opposite directions.
Two optical fiber core wires are built in the main line side optical fiber 62. At one end of the main line side optical fiber 62, a connector 63 is formed by a male optical fiber connector for two cores (see FIGS. 17A and 17B).

Furthermore, in this embodiment, the arrangement | positioning part 15 is formed in the vicinity of the insertion port 12 formed in the back surface of the main case 10, as shown in FIG.11 (b). The placement portion 15 is a recess formed between the main case 10 and the holding member 50, and an annular seal member 90 as shown in FIGS. 17C and 17D is placed in the placement portion 15. .
The seal member 90 is made of an elastic material such as rubber, and is disposed on the placement portion 15 in a state of being fitted on the outer peripheral surface of the trunk-side optical fiber 62 (see FIG. 11B). As shown in FIG. 17D, the seal member 90 is provided with a notch 91. When the seal member 90 is externally fitted to the main line side optical fiber 62, the seal member 90 is expanded from the notch 91 and the main line side optical fiber is expanded. 62 may be inserted.
By this seal member 90, the gap between the main line side optical fiber 62 drawn out from the insertion port and the insertion port 12 can be blocked, and the entry of dust and moisture from the insertion port 12 into the external housing can be blocked.
Further, if the sealing member 90 is press-contacted or bonded to the outer peripheral surface of the main line side optical fiber 62, when a tensile load is applied to the main line side optical fiber 62 from the outside, the sealing member 90 is connected to the connector 63 for the optical fiber adapter 30. It also functions as a retainer.

Next, an example of an optical fiber home construction method using the optical outlet according to the present embodiment will be described (see FIGS. 11 and 12).
First, an opening is opened in the indoor wall surface where the optical outlet is installed. The main line side optical fiber 62 is inserted into the wall from the attachment port from one end which is not terminated, and the inside of the wall, under the floor, the ceiling, and the like are routed to connect the respective rooms with an optical LAN.

Next, the seal member 90 is externally fitted to the main line side optical fiber 62, the connector 63 provided at the other end of the main line side optical fiber 62 is inserted into the optical fiber adapter 30, and the engaging leg portion 35 of the optical fiber adapter 30 is further inserted. Is fitted in the fitting groove 51 of the holding member 50, and the optical fiber adapter 30 is attached to the holding member 50.
Thereby, the optical fiber adapter 30 is attached to the holding member 50, and these members are integrated. In this state, when the holding member 50 is fitted inside the engaging piece 13 provided on the main case 10, the engaging claw 55 of the holding member 50 engages with the engaging piece 13, and the holding member 50 is attached to the main case 10. 50 is mounted.
At this time, the trunk-side optical fiber 62 extending from the connector 63 is disposed along the guide portion 56 formed in the holding member 50 and guided to the insertion port 12. In addition, the seal member 90 that is externally fitted to the main line side optical fiber 62 is arranged in the arrangement portion 15 formed between the main case 10 and the holding member 50.

After that, the mounting operation of the optical outlet 1 is completed by mounting the sub case 20 on the front side of the main case 10 with the mounting bracket 81 mounted on the sub case 20.
Attach the optical outlet assembled in this way to the wiring fixture mounting frame and, like the wiring fixture, attach the wiring fixture mounting frame to the mounting opening opened on the indoor wall surface using fasteners such as support brackets and screws. Install. In this way, the optical outlet is installed on the wall surface in the room. Finally, the decorative plate 104 is mounted around the optical outlet, and the facility work is completed.

<< Third Embodiment >>
FIGS. 19A to 19E are views showing the overall configuration of an optical outlet according to the third embodiment of the present invention, and FIGS. 20A to 20C and FIGS. 21A and 21B are the assembly order. It is a figure which shows the structure of the same optical outlet along.
In the optical outlet according to the present embodiment, the same or corresponding parts as those of the optical outlet according to the first and second embodiments described above are denoted by the same reference numerals, and detailed description thereof is omitted. Sometimes.

  The main part of the optical outlet of the present embodiment is composed of the main case 10, the sub case 20 (also referred to as a cover), the optical fiber adapter 30 (optical fiber connection member), and the holding member 50.

The main case 10 and the sub case 20 are parts that constitute an external casing of the optical outlet.
The main case 10 is open at the front (see, for example, FIG. 20A), and the sub case 20 is attached to the front opening 10a (see FIG. 19D). The main case 10 is made of a transparent plastic material.

  A plurality of locking claws 11 are formed on the peripheral surface of the main case 10, while a plurality of engagement pieces 21 extend from the peripheral edge of the sub case 20. Then, the sub case 20 is attached to the main case 10 by the engagement of the engagement pieces 21 and the locking claws 11.

  An insertion port 12 for inserting the main line side optical fiber 62 is formed on the back surface of the main case 10 (see FIG. 19D). In the present embodiment, a notch 16 for inserting a connector is also formed continuously from the insertion opening 12. The notch 16 is an opening through which the connector 63 attached to the distal end of the main line side optical fiber 62 is led from the back side of the main case 10 to the inside.

  Furthermore, the arrangement | positioning part 15 of the sealing member 90 is formed in the inner back surface part of the main case 10 continuously from the insertion port 12 so that it may be surrounded by a standing wall. The optical outlet according to the present embodiment includes a seal member 90 configured as shown in FIGS. The seal member 90 is made of an elastic material such as rubber. As shown in FIG. 19 (d), the seal member 90 is arranged in the arrangement portion 15 in a state of being fitted on the main line side optical fiber 62. The seal member 90 disposed in the placement portion 15 contacts the insertion port 12, thereby closing the insertion port 12.

  Here, a guide wall 17 is formed on the inner back surface of the main case 10 to guide the seal member 90 attached to the trunk side optical fiber 62 to the placement portion 15 in accordance with the turning operation of the holding member 50 described later. (See FIGS. 20A and 20B). That is, the guide wall 17 has an inclined surface extending from the upper end of the arrangement portion 15, and the seal member 90 is guided to the arrangement portion 15 along the inclined surface.

  In the front surface of the sub case 20, as shown in FIG. 19 (e), the insertion port 22 of the device side optical fiber 62 is opened downward. Metal fittings 81 are attached to both side portions of the sub case 20. The mounting bracket 81 is for mounting an optical outlet on a wall surface of a house using a general-purpose wiring fixture mounting frame, and has a size and shape suitable for the wiring fixture mounting frame as will be described later.

  The optical fiber adapter 30 is a component that connects one end of the trunk-side optical fiber 62 and one end of the device-side optical fiber. In this embodiment, a plastic optical fiber called POF is used as each optical fiber. Such a plastic optical fiber has an advantage that it is more resistant to bending than a quartz optical fiber and is easily terminated.

  Connectors suitable for termination of plastic optical fibers are commercially available in various configurations. In this embodiment, a POF connector called an SMI plug is used. Therefore, the optical fiber adapter 30 has a configuration suitable for the connection of this SMI plug.

22 to 25 are diagrams showing a configuration of the optical fiber adapter 30 according to the present embodiment.
The optical fiber adapter 30 is connected to the first connection component 36 (see FIG. 22) to which the connector 63 provided at one end of the main line side optical fiber 62 is connected, and the connector 63 provided at one end of the equipment side optical fiber. The second connection component 37 (see FIG. 23) and a fixed frame 38 (see FIG. 24) for holding each connection component with their one end surfaces overlapped.
In the optical fiber adapter 30 shown in the figure, the first connection component 36 can be used as the second connection component, and the first connection component 36 can be used as the second connection component.

  In this embodiment, the commercially available SMI relay optical connector is improved and the optical fiber adapter 30 is manufactured. As shown in FIGS. 22 (a) and 23 (a), the commercially available SMI relay optical connector has flanges 36a and 37a (hatched portions in the figure) extending from the side edges of the connection parts 36 and 37. The flanges 36a and 37a are screwed and the connection parts 36 and 37 are overlapped.

The optical fiber adapter 30 of the present embodiment is reduced in size by deleting the flanges 36a and 37a of the connection parts 36 and 37, and can be accommodated in the main case 10 thereby. The overlapping of the connection parts 36 and 37 is realized by a fixed frame 38 shown in FIG.
The fixed frame 38 is formed of a thin-walled metal component that is curved and shaped to hold the outer peripheral surface of each connection component 36, 37. The upper surface of the fixed frame 38 is notched at the intermediate portion, and a locking claw 38a is formed on the inner edge thereof. Further, an engagement piece 38 b is bent at the side edge of the fixed frame 38. Projections 36b and 37b are formed on the upper end surfaces of the connection parts 36 and 37, and notches 36c and 37c extending in the vertical direction are formed on the side surfaces of the connection parts 36 and 37. It is.

  The optical fiber adapter 30 is easily assembled by first overlapping the end surfaces of the connection parts 36 and 37 and then fitting the fixing frame 38 into the overlapping portion from above (see FIG. 25). At this time, the locking claws 38a of the fixed frame 38 are engaged with the protrusions 36b and 37b of the connection parts, and the engagement pieces 38b of the fixed frame 38 are engaged with the cutout grooves 36c and 37c of the connection parts. Thereby, the assembly state is maintained.

  The fixing frame 38 described above is formed with an engaging claw portion 38c extending to be attached to a holding member 50 described later.

  As shown in FIGS. 20A to 20C, the holding member 50 is rotatably mounted inside the main case 10. That is, a bearing piece 57 extends from the base end portion of the holding member 50, and a long hole 57 a is formed in the bearing piece 57. On the other hand, a support shaft 18 is formed inside the main case 10, and this support shaft 18 is engaged with the elongated hole 57a. As a result, the holding member 50 is rotatable with respect to the support shaft 18 and is slidable by the length of the long hole 57a.

  As shown in FIG. 25 (e), a locking groove 58 is formed on the front surface of the holding member 50, and the locking claw 38 c of the fixing frame 38 is inserted and locked into the locking groove 58. The optical fiber adapter 30 is held.

  The upper portion of the holding member 50 is a guide portion 56 formed in a curved shape (see FIG. 19D). The trunk-side optical fiber 62 drawn into the main case 10 is disposed along the curved guide portion 62, thereby preventing excessive bending of the optical fiber 62.

  On the back surface of the holding member 50, a protruding wall 59 (back cover) for closing the notch 16 for inserting the connector 63 formed on the back of the main case 10 is formed (FIG. 20A). To (c)). Further, the holding member 50 is formed with a pressing portion 60 for pressing and holding the seal member 90 to the arrangement portion 15 of the main case 10 (see FIG. 19D). In addition, a temporary holding portion 61 for detachably holding the seal member 90 is formed on the side surface of the holding member 50 (see FIG. 20A). By attaching the seal member 90 to the temporary holding portion 61 at the time of shipment from the factory, it is possible to prevent the seal member 90 that is a fine part from being lost during transportation or at the site.

  The holding member 50 is fitted to the inside of the main case 10 by a turning operation. In order to hold the fitted state, a plurality of engagement pieces 13 are formed inside the main case 10, and the holding member 50 is held. A plurality of locking claws 55 are formed on the side surface of the member 50. The holding member 50 is held by the main case 10 by the engagement of the engaging pieces 13 and the locking claws 55.

FIGS. 26A to 26C show the mounting bracket 81 attached to the sub case 20. The mounting bracket 81 is attached to both sides of the sub case 20 as shown in FIG.
That is, as shown in FIG. 27 (a), mounting portions 20c projecting in the lateral direction are formed on both sides of the sub case 20, and mounting brackets 81 are held at both ends of the mounting portion 20c. A locking claw 20a is formed. Further, the sub case 20 is formed with a positioning portion 20b at a predetermined location (in FIG. 27, the central portion at the base end edge of the mounting portion 20c).

  On the other hand, both ends of the mounting bracket 81 are engaging portions 81a. The engaging portion 81a can be formed, for example, by processing both end portions of the mounting bracket 81 into a U-shaped cross section. Further, the mounting bracket 81 is formed with a positioning engagement portion 81 b that engages with the positioning portion 20 b of the sub case 20. In this embodiment, as shown in FIGS. 26 and 27, the positioning portion 20b of the sub case 20 is formed as a convex portion, and the positioning engaging portion 81b of the mounting bracket 81 is formed as a concave portion. The mounting bracket 81 is positioned with the engagement. In addition, the positioning part 20b can be formed with a recessed part, and the positioning engaging part 81b can also be formed with a convex part.

  The mounting bracket 81 is mounted by elastically engaging the engaging portion 81a of the mounting bracket 81 with the locking claw 20a of the mounting portion 20c simply by fitting into the mounting portion 20c of the sub case 20 from the lateral direction. At this time, the positioning portion 20b of the sub case 20 and the positioning engagement portion 81b of the mounting bracket 81 are engaged, and the mounting bracket 81 is held at an appropriate position.

  Of course, the configuration of the mounting bracket 81 and the sub case 20 described above can also be applied to the optical outlet of the above-described embodiment.

In addition, the optical outlet of this embodiment is also a standardized wiring in which an external housing composed of the main case 10 and the sub case 20 is mounted with a wiring device such as a switch or an outlet, as in the above-described embodiment. It is formed in a dimensional shape that can be mounted on the instrument mounting frame 100.
The mounting bracket 81 has a mounting portion that engages with the standardized wiring fixture mounting frame 100. By engaging this mounting portion with the wiring fixture mounting frame 100, as shown in FIG. In addition, the optical outlet 1 according to the present embodiment can be installed on the wall surface 101 of the home via the wiring fixture mounting frame 100 as in the case of wiring appliances such as switches and outlets.
The mounting portion that engages with the wiring device mounting frame 100 is formed by the mounting bracket 81.

Next, an in-house construction method for an optical fiber using the optical outlet according to the present embodiment will be described (see FIGS. 20 and 21).
First, the seal member 90 attached to the temporary holding portion of the holding member 50 is removed, and fitted into the trunk side optical fiber 62 from its tip. Next, the optical connector 63 is attached to the tip of the main line side optical fiber 62 and terminated. As a method for terminating the optical fiber for POF, for example, a hot plate method is known. In this method, the tip of the optical fiber is inserted into the hole of the optical connector 63, the tip is cut, and then the tip of the optical fiber is heated and deformed using a heating tool called a hot rate tool. It is a method of pressing.

Thereafter, the optical connector 63 is led inwardly from the back side of the main case 10 through the notch 16 for inserting the connector 63 formed in the main case 10 and connected to the optical fiber adapter 30 (FIG. 20A). Subsequently, the position of the seal member 90 is adjusted so as to face the guide wall 17, and the holding member 50 is rotated and fitted to the back side of the main case 10. As the holding member 50 is rotated, the seal member 90 is guided by the guide wall 17 and placed on the placement portion 15, and the seal member 90 is pressed and held on the placement portion 15 by the pressing portion 60 of the holding member 50. (FIGS. 20B and 20C).
With this operation, the insertion port 12 of the main case 10 is closed by the seal member 90, and the protruding wall portion 59 of the holding member 50 is fitted into the cutout portion 16 of the main case 10 to close the cutout portion 16. Further, since the seal member 90 is pressed and held by the placement portion 15, free movement of the trunk side optical fiber 62 in the axial direction is also restricted.

  Since the main case 10 is formed of a transparent plastic material, the arrangement state of the seal member 90 on the arrangement portion 15 can be visually recognized from the outside. If the seal member 90 is displaced from the placement portion 15, the above rotation operation of the holding member 50 may be performed again.

  Next, the sub case 20 is mounted on the front surface of the main case 10 (FIGS. 21A and 21B). In this way, assembly at the construction site of the optical outlet can be easily performed. The optical outlet is attached to the wiring fixture mounting frame provided on the wall surface in the house.

<< Fourth Embodiment >>
FIG. 28 is a diagram showing the overall configuration of the optical outlet according to the fourth embodiment of the present invention, and FIGS. 29 to 31 are diagrams showing the configuration of the optical outlet in the assembling order.
In the optical outlet according to the present embodiment, the same or corresponding parts as those of the optical outlets according to the first to third embodiments described above are denoted by the same reference numerals and detailed description thereof is omitted. Sometimes.

  The optical outlet of this embodiment is mainly composed of the main case 10, the sub case 20 (also referred to as a cover), the back case 200 (also referred to as a back cover), the optical fiber jack 210 (optical fiber connection member), and the holding member 50. The part is composed. Among these, the main case 10, the sub case 20, and the back case 200 are components that constitute the external casing of the optical outlet. The back case 200 is attached to the back of the main case 10 (see FIG. 28). The holding member 50 is rotatably attached to the front side of the main case 10, and the optical fiber jack 210 is attached to the holding member 50 (see FIG. 29).

In this embodiment, an optical fiber jack 210 shown in FIG. 32 is used as the optical fiber connecting member.
As shown in FIG. 32 (e), the optical fiber jack 210 has one end of a connecting optical fiber 213 connected in advance to a connector connecting portion 212 provided inside the jack body 211, and this connecting optical fiber 213. Is extended from the jack body 211.
Also in this embodiment, the main line side optical fiber 62 uses an optical fiber having a single core wire or a two-core tape core wire.
As shown in FIG. 30, one end of the connection optical fiber 213 and one end of the core of the trunk side optical fiber are connected by thermal fusion. Further, the connecting portion is reinforced by using a tubular reinforcing sleeve 214.

FIGS. 32A and 32B show a configuration example of an optical fiber jack having a two-core structure capable of connecting two device-side optical fibers. FIGS. 32C and FIG. 32D show one device-side optical fiber. 1 shows a configuration example of an optical fiber jack having a single-core structure that can be connected to each other.
An optical fiber jack 210 having a two-core structure shown in FIGS. 32A and 32B includes two jack main bodies 211, and connecting optical fibers 213 extend from the jack main bodies 211. The two jack bodies 211 provided side by side are connected by a fixing bracket 215. Further, in the optical fiber jack 210 having a single-core structure shown in FIGS. 32C and 32D, a connecting optical fiber 213 extends from one jack body 211. The two-fiber optical fiber jack 210 may have a structure in which two jack main bodies 211 are integrally formed. However, in the present embodiment shown in the figure, the same jack main body 211 as the single-fiber optical fiber jack 210 is provided. By using it and connecting it with the fixing bracket 215, the parts are shared, and the number of parts is reduced.

  The fixing bracket 215 can be constituted by, for example, an L-shaped metal plate as shown in FIGS. On the upper surface of the fixing bracket 215, a sandwiching piece 215a is cut and raised. The sandwiching piece 215a is used to configure a two-fiber structure optical fiber jack 210 by connecting two jack bodies 211 side by side. As shown in FIG. 32 (a), a long groove 211a that engages with the holding piece 215a is formed on the upper surface of the jack body 211, and the two jack main bodies are obtained by hooking the holding piece 215a into the long groove 211a. 211 is clamped by the clamping piece 215a, and the connected state is maintained.

In the present embodiment, the fixing bracket 215 also has a function of attaching the optical fiber jack 210 to the holding member 50 as described later. For this reason, the fixture 215 is attached to the jack main body 211 also for the single-fiber optical fiber jack 210 (see FIGS. 32C and 32D). In order to attach to the optical fiber jack 210 having a single-core structure, a grip piece 215b is cut and raised on the upper surface of the fixture 215. The upper surface of the jack body 211 is gripped by the gripping piece 215 b, and the fixing bracket 215 is attached to the jack body 211.
A locking claw 215 c for mounting to the holding member 50 is formed on the back surface that is bent and extended from the upper surface of the fixing bracket 215.

  The fixing bracket 215 is used by selecting one of the sandwiching piece 215a and the gripping piece 215b according to the above-described use and cutting one which is not necessary. In this way, by using the fixing bracket 215 as a common component, the number of components can be reduced.

FIGS. 33A to 33C are views showing a state in which the optical fiber jack having a two-core structure is attached to the holding member, and FIGS. 34A to 34C are diagrams showing the optical fiber jack having a single-core structure to the holding member. It is a figure which shows the state mounted | worn.
The holding member 50 is formed with an engagement slit 50a on the front surface, and the optical fiber jack 210 is attached to the holding member 50 by inserting the engaging claw 215c of the fixing bracket 215 into the engagement slit 50a. Is done. When the single optical fiber jack 210 is attached to the holding member 50, spacers 216 configured as shown in FIGS. 34 (d) and 34 (e) are attached to both sides of the jack body 211. The width of the spacer 216 matches the width of the optical fiber jack 210 having a two-core structure. By mounting this spacer 216, the outer shape of the single-fiber optical fiber jack 210 is the same as that of the two-core structure. Thus, any optical fiber jack 210 can be attached to the holding member 50 under the same conditions without changing the shape and dimensions of the peripheral components.

  Further, the upper portion of the holding member 50 is a guide portion 56 formed in a curved shape. The guide portion 56 is formed with a plurality of guide grooves 56a for guiding the connection optical fiber 213 to the back side, and the connection optical fiber 213 extending from the optical fiber jack 210 is any suitable guide groove 56a. This prevents excessive bending of the connecting optical fiber 213 (see FIGS. 33A to 33C and FIGS. 34A to 34C).

  As shown in FIG. 29, the holding member 50 is rotatably mounted inside the main case 10. That is, a bearing piece 57 extends from the base end portion of the holding member 50, and a long hole 57 a is formed in the bearing piece 57. On the other hand, a support shaft 18 is formed inside the main case 10, and this support shaft 18 is engaged with the elongated hole 57a. As a result, the holding member 50 is rotatable with respect to the support shaft 18 and is slidable by the length of the long hole 57a.

  The holding member 50 is fitted to the inside of the main case 10 by a turning operation. In order to hold the fitted state, a plurality of engagement pieces 13 are formed inside the main case 10, and the holding member 50 is held. A plurality of locking claws 55 are formed on the side surface of the member 50. The holding member 50 is held by the main case 10 by the engagement of the engaging pieces 13 and the locking claws 55.

The main case 10 has an open front (for example, see FIG. 29A), and the sub case 20 is attached to the front opening 10a (see FIG. 30).
A plurality of locking claws 11 are formed on the peripheral surface of the main case 10, while a plurality of engagement pieces 21 extend from the peripheral edge of the sub case 20. Then, the sub case 20 is attached to the main case 10 by the engagement of the engagement pieces 21 and the locking claws 11.

  In the front surface of the sub case 20, as shown in FIG. 28A, the insertion port 22 of the device side optical fiber 62 is opened downward. It should be noted that metal fittings 81 shown in FIG. 26 are attached to both sides of the sub case 20 as in the third embodiment. The mounting bracket 81 is for mounting an optical outlet on a wall surface of a house using a general-purpose wiring fixture mounting frame, and has a size and shape suitable for the wiring fixture mounting frame as described above. .

  On the back wall of the main case 10, an outlet 220 for guiding the connecting optical fiber 213 to the back side is formed (see FIG. 29). The end portion of the connection optical fiber 213 drawn out from the outlet 220 is connected to one end of the trunk side optical fiber 62, and the connection portion is reinforced using the reinforcing sleeve 214. In addition, an annular seal member 90 made of an elastic material such as rubber is attached (externally fitted) to the main line side optical fiber 62 before being connected to the connection optical fiber 213 (FIG. 30). reference)

  As shown in FIG. 31 (b), an extra length winding portion for winding and holding extra length portions of the connecting optical fiber 213 and the trunk side optical fiber 62 connected to each other on the outer back surface portion of the main case 10. 221 is formed. The extra length winding portion 221 is configured by two annular standing walls, and extra length portions of the connection optical fiber 213 and the main line side optical fiber 62 are wound around the outer periphery thereof.

A sleeve storage portion 222 for storing and arranging the reinforcing sleeve 214 is formed on the outer back surface of the main case 10. The sleeve storage portion 222 has a concave shape, and a dovetail groove 222a for mounting the sleeve fixture 223 is formed on the side wall thereof.

  As shown in FIGS. 35 (a) and 35 (b), the sleeve fixing tool 223 (sleeve fixing means) is fitted into a dovetail groove 222a and a recess 223a having a U-shaped cross section that elastically grips the reinforcing sleeve 214. Part 223b. The sleeve fixing tool 223 is attached to the sleeve storage portion 222 and holds the reinforcing sleeve 214 in the recess 223a.

As shown in FIG. 28, the back case 200 is attached to the back side of the main case 10 so as to cover the outlet 220 of the main case 10. The back case 200 is formed with an insertion port 201 for the trunk-side optical fiber 62, and the trunk-side optical fiber 62 is drawn into the back side of the main case 10 through the insertion port 201. Further, the rear case 200 is formed with an arrangement portion 202 of the seal member 90 inside the insertion port 201 so as to be continuous with the insertion port 201. The arrangement portion 202 is a concave portion that matches the outer shape of the seal member 90.
An arrangement portion 15 of the seal member 90 is also formed on the outer back surface portion of the main case 10 at a position facing the arrangement portion 202 of the back case 200. The arrangement portion 15 is also a concave portion that matches the outer shape of the seal member 90.
The seal member 90 attached to the main line side optical fiber 62 is arranged in the arrangement portion 15 of the main case 10, and the back case 200 is attached to the back side of the main case 10 in this state. At this time, the seal member 90 is accommodated in the arrangement portion 202 of the back case 200. The seal member 90 is placed between the main case 10 and the back case 200 in a state surrounded by the placement portions 15 and 202, and closes the insertion port 201 of the back case 200 from the inside. Thereby, the entrance of moisture and dust from the insertion port 201 is prevented.

  As shown in FIGS. 29 and 31, a trunk-side optical fiber stopper 203 (trunk-side optical fiber fixing means) is attached to a position near the placement portion 15 formed in the main case 10. The main line side optical fiber stopper 203 is formed of a U-shaped metal fitting as shown in FIGS. 35 (c) and 35 (d), and has a structure in which the main line side optical fiber is inserted and the outer sheath is held and fixed. (See FIG. 31).

In addition, the optical outlet of the present embodiment is also standardized in which the external casing composed of the main case 10, the sub case 20, and the back case 200 is mounted with a wiring device such as a switch or an outlet, as in the above-described embodiment. It is formed in a dimensional shape that can be mounted on the mounted wiring device mounting frame 100.
The mounting bracket 81 has a mounting portion that engages with the standardized wiring fixture mounting frame 100. By engaging this mounting portion with the wiring fixture mounting frame 100, as shown in FIG. In addition, the optical outlet 1 according to the present embodiment can be installed on the wall surface 101 of the home via the wiring fixture mounting frame 100 as in the case of wiring appliances such as switches and outlets.
As described above, the mounting portion that engages with the wiring device mounting frame 100 is formed by the mounting bracket 81 (see FIG. 26).

Next, an in-house construction method for an optical fiber using the optical outlet according to the present embodiment will be described (see FIGS. 29 to 31 and FIG. 28).
The optical fiber jack 210 is attached to the holding member 50 in advance at the time of shipment from the factory, the connecting optical fiber 213 is passed from the outlet 220 to the back side, and the holding member 50 is attached to the inner side of the main case 10. 20 is preferably attached to the front side of the main case 10. Further, it is preferable that the sleeve fixing tool 223 and the main line side optical fiber stopper 203 are also attached to the main case 10 in advance at the time of factory shipment.

  At the construction site, first, the main line side optical fiber 62 is passed through the insertion port 201 of the back case 200, the seal member 90 is preliminarily fitted on the main line side optical fiber 62, and an arbitrary length from one end of the optical fiber 62. Only the jacket is peeled off to expose the core wire (see FIG. 30). Then, the core wire of the trunk side optical fiber 62 and the core wire of the connection optical fiber 213 are connected by thermal fusion, and the connection portion is reinforced using the reinforcing sleeve 214. The reinforcing sleeve 214 is arranged so as to be fitted around the connection portions of the optical fibers 62 and 213, and is fixed to the connection portions of the optical fibers 62 and 213 by heat fusion using a dedicated tool. .

  Next, the extra length portions of the main line side optical fiber 62 and the connecting optical fiber 213 are wound around the extra length winding portion 221 of the main case 10 and the reinforcing sleeve 214 is inserted into the sleeve fixture 223 and the sleeve of the main case 10 is inserted. It is stored and arranged in the storage unit 222. Further, the seal member 90 is arranged on the arrangement portion 15 of the main case 10, and the main line side optical fiber 62 is inserted and fixed to the main line side optical fiber stopper 203. By fixing the main line side optical fiber 62 with the main line side optical fiber stopper 203, the seal member 90 is held by the arrangement portion 15 of the main case 10.

  Thereafter, the back case 200 is attached to the back side of the main case 10 to complete the assembly of the optical outlet. In this way, the optical outlet of the present embodiment can be easily assembled at the construction site. After the assembly, the optical outlet is mounted on the wiring equipment mounting frame provided on the wall surface in the house.

<Modifications / Applications>
In addition, this invention is not limited to embodiment mentioned above.
For example, if one end of the main line side optical fiber is terminated with an optical fiber connector at the time of factory production, the work at the construction site becomes very easy, but it can also be terminated at the construction site if necessary. it can. In this case, the sealing member 90 used in the second embodiment may be configured to be inserted from one end of the trunk-side optical fiber that is not terminated without providing a cut.

  Also, the optical fiber adapter 30 and the female optical fiber connector 65 shown in FIGS. 6 and 18 can be applied to the optical outlet according to the third embodiment. Furthermore, the optical fiber adapter 30 shown in FIG. The present invention can also be applied to the optical outlets according to the first and second embodiments.

  The fitting protrusions 32 constituting the first engaging portion are manufactured as separate parts from the optical fiber adapter 30 and the female optical fiber connector 65 shown in FIGS. 6 and 18, and these are formed using a double-sided adhesive tape or the like. It is good also as a structure attached to the optical fiber adapter 30 or the female optical fiber connector 65. FIG. If comprised in this way, the fitting convex part 32 can be provided also in the existing optical fiber adapter and female optical fiber connector. It is preferable that a locking claw 33 is also formed on the part constituting the fitting convex portion 32.

In the first to third embodiments, a male optical fiber connector is used to form a connector at one end of the trunk-side optical fiber. This is configured by a female optical fiber connector 65 as shown in FIG. You can also In this case, the female optical fiber connector can also be used as an optical fiber connecting member for connecting the connector of the device side optical fiber.
A fitting projection 32 and a locking claw 33 are formed on the back surface of the female optical fiber connector 65. The fitting projection 32 is fitted into the fitting groove 51 of the holding member 50, and the locking claw 33 is Engages with the notch engaging portion 52. If comprised in this way, an optical fiber adapter can be abbreviate | omitted and a number of parts will be reduced.

  In the configuration of the third embodiment, the notch 16 for inserting the optical connector 63 formed on the back surface of the main case 10 can be omitted. If the trunk-side optical fiber 62 is passed through the insertion port 20112 in advance, and then the end of the optical fiber is terminated, there is no hindrance to assembling work at the site even without the notch 16.

In the configuration of the fourth embodiment, as shown in FIG. 31 (b), it is preferable to provide optical fiber jump-out preventing claws 225 at several locations on the outer periphery of the extra length winding portion 221. The optical fiber core has elasticity, and its elastic force increases as it approaches the allowable minimum bending radius, and tends to easily protrude from the extra length winding portion 221.
Therefore, if a protrusion preventing claw 225 having an L-shaped cross section is provided on the outer periphery so as to face the excessive length winding part 221, the protrusion is restricted by the protrusion preventing claw 225 and wound around the excessive length winding part 221. The optical fiber can be prevented from jumping out.

  Further, as shown in enlarged views in FIGS. 36A and 36B, if a recess 226 is formed in the peripheral surface portion of the extra length winding portion 221 facing the pop-out preventing claw 225, the extra length winding portion (groove). A protrusion preventing claw 225 having a length substantially the same as the width of the protrusion 221 can be provided, and an optical fiber is guided from the recess 226 to the inside of the protrusion preventing claw 225 so that it can easily reach the peripheral surface of the extra length winding portion 221. Even if some tension is applied to the optical fiber core during the winding operation, even if the minimum bending radius is reached along the inner wall of the extra length winding portion, it will come off from the pop-out prevention claw 225. Therefore, the extra length winding workability is further improved.

It is a figure which shows the whole structure of the optical outlet concerning the 1st Embodiment of this invention, (a) is a front view, (b) is side sectional drawing, (c) is a rear view. It is sectional drawing which decomposes | disassembles and shows the optical outlet concerning the 1st Embodiment of this invention. (A) is a perspective view which shows the plant | facility condition to the wall surface of the optical outlet based on the 1st Embodiment of this invention, (b) is a perspective view of the optical outlet installed in the wall surface of a house. It is a figure which shows a main case, (a) is a front view, (b) is a side view, (c) is a bottom view, (d) is side sectional drawing, (e) is a rear view. It is a figure which shows a subcase, (a) is a front view, (b) is a side view, (c) is a bottom view, (d) is side sectional drawing, (e) is a rear view. It is a figure which shows an optical fiber adapter, (a) is a front view, (b) is a top view, (c) is a bottom view, (d) is a side sectional view, (e) is a plan sectional view, and (f) is a side view. (G) is a rear view, (h) is a side sectional view showing a mounting state on a holding member, and (i) is a plan view. It is a front view which shows an optical fiber adapter, a trunk line side optical fiber, and an apparatus side optical fiber. It is a figure which shows a guide member, (a) is a front view, (b) is a side view, (c) is a rear view. It is a figure which shows a holding member, (a) is a front view, (b) is a top view, (c) is a side view, (d) is side sectional drawing, (e) is a front view which expands and shows a fitting groove | channel. , (F) are also plan views. (A) is a front view of a transparent window, (b) is a bottom sectional view, and (c) is a side view. (D) is a front view of the mounting bracket, (b) is a bottom view, and (f) is a side view. It is a figure which shows the whole structure of the optical outlet concerning the 2nd Embodiment of this invention, (a) is a front view, (b) is side sectional drawing, (c) is a facing view, (d) is a rear view. is there. It is sectional drawing which decomposes | disassembles and shows the optical outlet concerning the 2nd Embodiment of this invention. It is a figure which shows the main case 10, (a) is a front view, (b) is a side view, (c) is a bottom view, (d) is a side sectional view, (e) is a rear view. It is a figure which shows a subcase, (a) is a front view, (b) is a side view, (c) is a bottom view, (d) is side sectional drawing, (e) is a rear view. It is a figure which shows a holding member, (a) is a front view, (b) is a side view, (c) is a rear view, (d) is a top view. It is a figure which shows an optical fiber adapter, (a) is a front view, (b) is a side view, (c) is a plane sectional view, (d) is a side sectional view, (e) is a rear view, and (f) is a bottom view. FIG. 4G is a bottom cross-sectional view showing a mounting state of the holding member. (A) is a front view showing a connector of a trunk side optical fiber, (b) is a bottom view, (c) is a front view of a seal member, and (d) is a bottom view. It is a figure which shows a female type | mold optical fiber connector, (a) is a front view, (b) is a side view, (c) is side sectional drawing, (d) is a rear view, (e) is a bottom view. It is a figure which shows the whole structure of the optical outlet concerning the 3rd Embodiment of this invention, (a) is a front view, (b) is a side view, (c) is a rear view, (d) is side sectional drawing, (E) is a bottom view. (A) thru | or (c) is side surface sectional drawing which shows the optical outlet shown in FIG. 19 along an assembly order, (d) is a front view of the sealing member 90, (e) is a side view of a sealing member. . (A) (b) is side surface sectional drawing which shows the optical outlet of FIG. 19 along the assembly order following FIG. (A) is the left view which shows the 1st connection component of the conventional optical fiber adapter, (b) is a top view which shows the 1st connection component of the optical fiber adapter which concerns on 3rd Embodiment, (c) is a plane similarly Sectional drawing, (d) is a left side view, (e) is a front view, and (f) is a right side view. (A) is a right side view showing a second connection part of a conventional optical fiber adapter, (b) is a plan view showing a second connection part of the optical fiber adapter according to the third embodiment, and (c) is a plan view. Sectional drawing, (d) is also a front view, and (e) is a right side view. (A) is a top view which shows the fixed frame of the optical fiber adapter which concerns on 3rd Embodiment, (b) is a front view, (c) is a right view. (A) is a plan view of an optical fiber adapter according to the third embodiment, (b) is also a front view, (c) is also a left side view, (d) is a plan sectional view, and (e) is a holding member. It is a left view which shows the mounting | wearing state. (A) is a front view of the mounting bracket, (b) is a bottom view, and (f) is a side view. (A) is a front view of a subcase, (b) is a side view similarly. It is a figure which shows the whole structure of the optical outlet concerning the 4th Embodiment of this invention, (a) is side sectional drawing, (b) is a side view, (c) is a rear view. It is side surface sectional drawing which shows the optical outlet shown in FIG. 28 along an assembly order. FIG. 30 is a side cross-sectional view showing the optical outlet shown in FIG. 28 following FIG. 29 in the assembling order. FIG. 31 is a view showing the optical outlet shown in FIG. 28 following the assembly sequence in the assembling order, wherein (a) is a side view and (b) is a side sectional view. (A) is a plan view showing an optical fiber jack having a two-core structure, (b) is also a rear view, (c) is a plan view showing an optical fiber jack having a single-core structure, (d) is also a rear view, and (e ) Is a side sectional view of the optical fiber jack, (f) is a plan view of the fixing bracket, (g) is also a side view, (h) is also a rear view, and (i) is a fixing bracket showing a state in which a gripping piece is cut off. (J) is a top view which shows the state which cut off the clamping piece. It is a figure which shows the state which mounted | wore the holding member with the optical fiber jack of a 2 core structure, (a) is a front view, (b) is a side view, (c) is a top view. (A) thru | or (c) is a figure which shows the state which mounted | wore the holding member with the optical fiber jack of a single core structure, (a) is a front view, (b) is a side view, (c) is a top view. (D) is a top view which shows a spacer, (e) is a rear view similarly. (A) is a front view of a sleeve fixing tool, (b) is a side view, (c) is a front view of a trunk side optical fiber stopper, and (c) is a plan view. It is a figure which shows the modification with respect to the 4th Embodiment of this invention.

Explanation of symbols

10: Main case, 11: Locking claw, 12: Insertion port 201, 13: Engagement piece, 13a: Notch hole, 15: Arrangement part, 16: Notch part, 17: Guide wall, 18: Support shaft 20: Deputy Case, 20a: locking claw, 20b: positioning portion, 20c: mounting portion, 21: engagement piece, 21a: notch hole, 22: insertion port,
30: optical fiber adapter, 31: connector connecting part, 32: fitting convex part, 33: locking claw, 35: engaging leg part, 36: first connecting part, 36b: protrusion, 36c: notch groove, 37 : Second connection part, 37b: protrusion, 37c: notch groove, 38: fixed frame, 38a: locking claw, 38b: engagement piece, 38c: engagement claw part 40: guide member, 41: guide body, 41a: guide groove, 42: mounting shaft,
50: holding member, 51: fitting groove, 52: notch engaging portion, 53: support arm, 54: bearing portion, 55: locking claw, 56: guide portion, 57: bearing piece, 57a: long hole, 58 : Locking groove part, 59: protruding wall part, 60: pressing part, 61: temporary holding part,
62: trunk side optical fiber, 63: connector, 65: female optical fiber connector,
70: device side optical fiber, 71: connector,
80: transparent window, 81: mounting bracket, 81a: engagement portion, 81b: positioning engagement portion,
90: seal member, 91: notch,
DESCRIPTION OF SYMBOLS 100: Wiring fixture mounting frame, 101: Wall surface, 102: Mounting port, 103: Fastener, 104: Decorative plate 200: Back case, 201: Insertion port, 202: Arrangement part, 203: Trunk side optical fiber stopper 210: Optical fiber jack, 211: Jack main body, 212: Connector connecting part, 214: Reinforcing sleeve, 215: Fixing bracket, 215a: Holding piece, 215b: Holding piece, 215c: Locking claw, 216: Spacer 220: Pull-out port, 221 : Extra length winding part, 222: sleeve storage part, 222a: dovetail groove, 223: sleeve fixing tool, 225: pop-out prevention claw, 226: concave part

Claims (16)

An optical outlet that is installed on a wall surface in a house and is used to optically connect a trunk-side optical fiber used for in-home wiring with a device-side optical fiber that extends from an optical fiber connection device placed in the house,
An external housing including a main case having an opening on the front surface and a sub case attached to the front opening of the main case;
An optical fiber connecting member for connecting the trunk side optical fiber and the device side optical fiber,
The optical fiber connecting member is mounted and a holding member mounted inside the main case, and
Furthermore, the holding member has a curved guide portion that guides and supports the trunk side optical fiber inside the outer casing. The optical outlet according to claim 1, wherein the holding member is integrated with the main case and is rotatable with respect to the main case. 2. The first engaging portion is provided between the holding member and the optical fiber connecting member, and the optical fiber connecting member is attached to the holding member through the first engaging portion. Or 2 optical outlets. The first engaging portion is a dovetail fitting groove formed in one of the holding member and the optical fiber connecting member, and a fitting formed on the other and slide-fitted into the fitting groove. 4. The optical outlet according to claim 3, wherein the optical outlet comprises a convex portion. The first engaging portion includes a locking groove formed in one of the holding member and the optical fiber connecting member, and an engaging leg portion formed in the other and engaged with the locking groove. The optical outlet according to claim 3, wherein A second engagement portion that engages with a fitting operation is provided between the main case and the holding member, and the holding member is attached to the main case via the second engagement portion. The optical outlet according to any one of claims 1 to 5. The second engaging portion includes a locking claw formed on one of the main case and the holding member, and an engagement piece formed on the other and elastically engaging with the locking claw. The optical outlet according to claim 6, wherein the optical outlet is provided. The back surface of the main case has an insertion port for the trunk-side optical fiber, and further includes a seal member that closes a gap between the trunk-side optical fiber drawn from the insertion port and the insertion port. The optical outlet according to any one of claims 1 to 7. The optical outlet according to claim 8, wherein the holding member includes a temporary holding portion to which the seal member can be detachably attached. In the main case, an arrangement portion of the seal member is formed continuously to the insertion port,
The holding member is formed with a pressing portion that presses and holds the seal member arranged in the arrangement portion.
The optical outlet according to claim 8 or 9, wherein the sealing member pressed and held by the pressing portion on the arrangement portion is configured to contact the insertion port and close the insertion port. The optical outlet according to claim 10, wherein the main case is formed of a transparent plastic material, and an arrangement state of the seal member on the arrangement portion can be visually recognized from the outside. The main case has a notch formed continuously to the insertion port, and the notch can be inserted into an optical fiber connector attached to the trunk side optical fiber. The optical outlet according to any one of 1 to 11. 13. The optical outlet according to claim 12, wherein a back cover portion that closes the notch portion is formed on the holding member. The optical outlet according to any one of claims 1 to 13, wherein one end is optically connected to each optical fiber on the equipment side and the trunk line side that has been terminated in advance by a male optical fiber connector.
An optical outlet characterized in that the optical fiber connecting member is constituted by an optical fiber adapter capable of inserting and connecting the male optical fiber connectors from opposite directions. The optical outlet according to any one of claims 1 to 13, wherein one end is optically connected to an apparatus-side optical fiber that is pre-terminated with a male optical fiber connector, and a trunk-side optical fiber.
One end of the trunk side optical fiber is terminated in advance with a female optical fiber connector, and the optical fiber connecting member is configured with the female optical fiber connector. The external casing is formed to have a size that can be attached to a standardized wiring fixture mounting frame on which a wiring fixture such as a switch or an outlet is mounted, and includes an attachment portion that engages with the wiring fixture mounting frame. The optical outlet according to any one of claims 1 to 15.

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