JPH0634828A - Indoor optical distribution pipeline - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an indoor optical distribution pipeline in which both a power line and an optical fiber can be laid and which can be easily executed by a simple operation when changing wiring. [Structure] Inside the main body 1, an empty conduit 2 is housed. Two plate-shaped conductors 4 are provided on both sides thereof. The conductor 4 is exposed on the surface where the main body 1 contacts the lid 3. The lid 3 has a conductor 4 on the body 1 side.
An electric conductor 5 is provided so as to contact with. Body 1
By shifting the connection position between the lid 3 and the lid 3, the conductor 5 straddles the conductors 4 of the main body 1 to improve electrical connection. The conductor can be used as a power line. Also,
The hollow conduit 3 projects at one end of the main body 1 and is hollow at the opposite end. The projected empty conduit is inserted into a recess of another conduit to connect the conduits, and a conduit for inserting an optical fiber. Make up.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor optical wiring pipeline used for wiring an optical indoor line, and to a pipeline power line composite having a power line in the pipeline.

[0002]

2. Description of the Related Art Conventionally, an optical indoor line has been installed indoors such as a building, and communication is performed using this optical indoor line. Various indoor wiring materials are used for laying optical indoor lines. For example, the document "Aiming to Build an Intelligent Building" is used as a member to store the installed optical indoor line.
A technique using a wire protector or a raceway is disclosed, as described on page 133 by the Telecommunications Association. Further, on page 132 of the same document, a flat optical fiber cable is described as another optical indoor wiring material.

FIG. 6 is a schematic view showing an example of a conventionally used indoor wiring material. FIG. 6 (A) is a conventional wire protector, FIG. 6 (B) is a conventional raceway, and FIG.
(C) is a schematic diagram of the conventional flat optical fiber cable. The conventional indoor wiring method is shown in FIG. 6 (A) and FIG. 6 (B).
The wire protector and the raceway as shown in Fig. 2 are installed indoors, and the optical indoor line is housed in the empty conduit provided therein and laid. In addition, FIG.
Flat fiber optic cable as shown in
A method of wiring under the carpet is also used.

For indoor wiring, it is often required to change the wiring route due to changes in the floor layout and equipment. Therefore, it is necessary to take out the optical indoor line that has been laid for a long time from the wire protector or raceway, remove the fixed wire protector or raceway, and lay it again, but this work is complicated. Further, even in the method of laying the flat optical fiber cable under the carpet, the work of peeling off the carpet and rewiring is required, which is also complicated. It is possible to install a new optical fiber and reconnect it in the middle, but connecting a cut optical fiber is a task that requires extremely difficult technology and can be used every time the wiring route is changed. Not technology.

A photoelectric converter is usually connected to the tip of the wired optical indoor line, and after converting into an electric signal,
It is connected to electrical equipment such as telephones and terminals. Therefore, it is necessary to install the power supply line at the same time as the optical indoor line. However, it is wasteful in terms of construction and space utilization to install two articles of the optical indoor line and the power supply line, and improvement is required.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and both power lines and optical fibers can be laid, and a simple operation is required when changing wiring. It is an object of the present invention to provide an indoor optical distribution line that can be easily executed.

[0007]

According to a first aspect of the present invention, in an indoor optical distribution line used for wiring an optical indoor line, a connection mechanism is provided at both ends, and It is characterized in that at least one empty pipe line and a conductor along the empty pipe line are provided inside.

Further, in the invention described in claim 2,
The indoor optical wiring pipeline according to claim 1 is characterized in that a plate-shaped conductor is used as a conductor, and the conductor is arranged perpendicular to a bottom surface of the conduit.

Further, in the invention according to claim 3, in the indoor optical wiring conduit according to claim 1 or 2, the conductor is exposed toward one surface of the conduit outer surface, and the main body. And a lid body having a conductor that contacts the exposed conductor.

[0010]

According to the present invention, since the conductor is provided along the empty conduit for laying the optical indoor line, it is not necessary to separately lay the power line by using this conductor as the power line. In addition, by providing a plate-shaped conductor along the empty conduit and arranging it vertically aligned with the bottom surface of the conduit,
The strength of the pipeline can be increased. Further, by having the connection mechanism at both ends of the conduit and being able to be fitted therein, for example, even when the wiring is changed, the connection can be easily performed by a simple operation. At that time, the laying of power lines is also changed.

Further, the pipe is provided with a main body whose conductor is released toward one surface of the outside of the pipe, and two or more conductors placed on the main body to conduct the released conductor. It is configured by the lid that includes, and by making the connection position of the seam of the main body and the seam of the lid do not match at the time of installation,
It is possible to reliably connect the conductors.

[0012]

1 is a schematic view showing an embodiment of an indoor optical distribution line of the present invention. In the figure, 1 is a main body, 2 is an empty conduit, 3
Are lids, and 4 and 5 are conductors. In this embodiment, the conductors 4 and 5 are copper plates. The main body 1 is a box-shaped body having a rectangular cross section, and one empty pipeline 2 is housed inside. The empty pipeline 2 can be formed by an appropriate method such as a method of forming a tubular pipeline therein, or a method of forming a void during molding of the main body. Two conductors 4 are provided on both sides of the empty conduit 2 perpendicularly to the bottom surface. The conductor 4 is exposed on the surface where the main body 1 contacts the lid 3. The lid 3 is configured to abut one surface of the main body 1, and a conductor 5 is provided on the surface abutting the main body 1 so as to contact the conductor 4 on the main body 1 side and be electrically connected. It Electric power can be supplied using the conductors 4 and 5. The empty pipe line 3 projects on one end side of the main body 1, and the opposite end side of the main body 1 is cylindrically recessed with the outer diameter of the empty pipe line as the inner diameter. By inserting this protruding empty pipeline into the recess of another pipeline, the pipeline can be connected and extended.

In the case of connecting and extending the conduit at the end, if the conductor 4 between the main bodies 1 is poorly contacted, electric power cannot be stably sent. Therefore, by installing the lid body 3 so as to straddle the connecting portion of the main body 1, the conductor 4 between the main bodies 1
Can be conducted. In addition, the upper part of the conductor 4 is L
When the conductor 4 and the conductor 5 are bent so that the area of the exposed portion is widened, the contact between the conductor 4 and the conductor 5 can be improved. The conductor 4 may be exposed only in the vicinity of the connecting portion of the main body 1, and the lid 3 may be arranged only in the vicinity of the connecting portion.

Further, in this embodiment, since the conductor 4 having a plate-shaped cross section is arranged in the pipe line in a state perpendicular to the bottom surface, the resistance against the lateral pressure is large and it is suitable for underfloor laying and the like. It has a structure.

Further, in this embodiment, the conductors 4 and 5 are arranged on both sides of the empty pipe line 2, but they may be arranged on one side. However, in that case, since the distance between the conductors becomes small, a problem such as a short circuit may occur when the lid 3 is installed. Therefore, it is necessary to take measures such as providing a fitting portion for positioning. Is. This measure is also necessary when three or more conductors are installed.

The indoor optical distribution pipeline of the present invention is manufactured by using indoor optical distribution pipelines of various shapes as parts, as in the conventional wire protector shown in FIG. The desired pipeline can be constructed. FIG. 2 shows an example of an indoor optical distribution line suitable for use in a bend. In the figure, the portions corresponding to those in FIG. In this case also, the cross-sectional shape is similar to that of FIG. 1, and the empty pipe line 2 projects at one end of the pipe line, and has a recess into which the empty pipe line 2 can be inserted at the other end.
Further, it is preferable that the end portions of the connecting portion of the main body 1 and the connecting portion of the lid body 3 are displaced in the longitudinal direction so that the connecting portions are not at the same connecting position.

FIG. 3 is a schematic view showing a modified example of the lid in an embodiment of the indoor optical wiring line of the present invention. 5 in the figure
Is a conductor and 6 is an outlet. As described with reference to FIG. 1, since the conductor 5 is also arranged on the lid to supply the electric power, the electric power can be taken out from the conductor 5 only by providing the outlet. Instead of the lid body 3 as shown in FIG. 1, the outlet body 6 as shown in FIG.

In addition to these, an indoor optical wiring line for start-up and the like can be produced in the same manner, and a desired pipeline can be constructed using such various indoor optical wiring lines. it can. In addition, since the conduits can be combined in this way, when it is necessary to change the route, the optical fiber is pulled back, the conduit is reassembled, and the optical fiber is sent again to disconnect and connect the optical fiber. It is possible to easily change the wiring network without performing the operation.

Here, in order to send the optical fiber to the empty conduit, it is possible to use a conventional air-laying technique for the optical fiber. This technique is disclosed, for example, in Japanese Examined Patent Publication No. 22922/1990, which is a method of laying an optical fiber in a pipe line previously installed by the flow of a pressure gas.

FIG. 4 is a schematic view showing another embodiment of the indoor optical distribution line of the present invention. In the figure, 11 is a main body, 12 is an empty conduit, 13 is a lid, and 14, 15 and 16 are conductors.
In this embodiment, two empty conduits 12 are provided, and conductors 14 and 16 are provided on both sides of the empty conduit 12, and three conductors of a grounding conductor 15 are provided between them. The lid 13 is also provided with three rows of conductors, and the conductors 14 arranged in the main body 11,
It is configured to come into contact with the upper portions of 15, 16. Here, since the conductors 14, 15 and 16 are similar conductors, they can be used for single-phase three-wire type or three-phase AC wiring to perform power transmission. As described above, it is also possible to provide a plurality of empty pipe lines, and in this case, even if three or more conductors are provided, there is little concern about short circuits.

A specific example of the indoor optical wiring line of the present invention will be described. Inside the main body 1, an empty polyethylene pipe line 2 having an inner diameter of 4 mm and an outer diameter of 6 mm is provided, which has a structure that is strongly pushed from one end and protrudes to the other end. The protruding dimension of the empty pipeline is 30 mm. On both sides of this empty conduit 2,
Two conductors of a shape in which a copper plate having a thickness of 0.5 mm is bent into an L shape by 4 mm are arranged so that the bottom line of the L shape protrudes to the left and right, and they are integrated with polyethylene to prepare a main body 1 having a length of 1 m. . Also, with the same main body configuration, a radius of 100 mm, 9
A bend line with a 0 ° bend was made.

A large number of main bodies each having a length of 1 m are produced, and the main body 10
The base was connected in series, and the protrusion was fitted in the dented portion to form a 10 m long conduit. We made two 10m long pipe lines,
Connection was made via a bend line to form a 21 m line.

Here, the length of the pipe lid for the bent portion is 30 cm shorter at both ends than that of the main body, and is only about 40 cm. The part that is not covered by the lid for this bend,
The lids on both sides were covered so as to completely cover, and by repeating this, the lid on the straight conduit was placed so as to straddle the connecting portion between the main bodies.

In this way, the conduits could be installed by simply connecting the components of the conduits and mounting the lid. In addition, each conductor was connected to the pipeline installed in this way, and there was no problem in power transmission.

When actually using such a pipeline,
By digging a rectangular groove in a floor material or the like in advance and burying it therein, no protrusion is formed on the floor and good installation can be performed.

FIG. 5 is a sectional view showing the structure of an optical fiber core wire which is used by being sent to the indoor optical wiring conduit of the present invention.
In the figure, 21 is an optical fiber, 22 is a Kevlar fiber, and 23 is Teflon. The optical fiber 21 has an outer shape of 250 μm.
And is covered with an ultraviolet curable resin. Two optical fibers 21 are used, Kevlar fibers 22 are vertically attached, and
It is covered with Teflon 23 to form an optical fiber core wire having an outer diameter of 0.8 mm. Here, the reason why Teflon is used for coating is to keep the friction on the surface as small as possible.

This optical fiber core wire is connected to the above-mentioned Japanese Patent Publication No.
Using the device shown in FIG. 4 in Japanese Patent No. 22921,
When an air of ² kg / cm ² pressure was used to try to communicate with the pipeline having a total length of 21 m described in the above specific example,
The optical fiber core wire could be passed in 1.5 minutes. Further, it was possible to collect the optical fiber core wire by introducing air of the same pressure from the opposite end.

[0028]

As is apparent from the above description, according to the present invention, since the power line is provided in the indoor optical distribution line, the work of laying the power line is eliminated, and the space space is efficiently used. be able to. Further, when changing the wiring of the composite line, it can be easily executed by a simple work, and it is particularly useful when used for wiring the floor system of an office building. Furthermore, by arranging the main body and the lid body in the longitudinal direction of the conduit so as to be displaced from each other, it is possible to achieve stable power transmission.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of an indoor optical distribution line of the present invention.

FIG. 2 is a schematic view showing a modified example of the embodiment of the indoor optical distribution line of the present invention.

FIG. 3 is a schematic view showing a modified example of the lid body in one embodiment of the indoor optical wiring line of the present invention.

FIG. 4 is a schematic view showing another embodiment of the indoor optical distribution line of the present invention.

FIG. 5 is a cross-sectional view showing a structure of an optical fiber core wire that is used by being sent to an indoor optical wiring pipeline of the present invention.

FIG. 6 is a schematic view showing an example of a conventionally used indoor wiring member.

[Explanation of symbols]

 1 main body 2 empty conduit 3 lid 4, 5 conductor

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yoshiaki Terasawa 1 Taya-cho, Sakae-ku, Yokohama-shi, Kanagawa Sumitomo Electric Industries, Ltd. Yokohama Works (72) Inventor Takenori Moritsumitsu 1-6-1, Uchisaiwaicho, Chiyoda-ku, Tokyo No. Japan Telegraph and Telephone Corporation

Claims (3)

[Claims] 1. An indoor optical distribution pipeline used for wiring an optical indoor line, wherein connection mechanisms are provided at both ends, and at least one empty conduit and an electric conductor along the empty conduit are provided inside. An indoor optical distribution line characterized by being provided with. 2. The indoor optical distribution pipeline according to claim 1, wherein a plate-shaped conductor is used as the conductor, and the conductor is arranged perpendicular to the bottom surface of the conduit. 3. A main body in which an electric conductor is exposed toward one outer surface of a conduit, and a lid body having the electric conductor placed on the main body and in contact with the exposed electric conductor. The indoor optical distribution pipeline according to claim 1 or 2, characterized in that.