JP4805045B2 - Optical / coaxial composite outlet - Google Patents

Description

  The present invention relates to an optical / coaxial composite outlet, and more particularly to an outlet in which an optical fiber and a coaxial cable are attached in advance.

In recent years, FTTH has been promoted not only in urban areas but also in local governments, etc., and it was conceived that the CATV business will be implemented using optical fiber lines at the same time as the installation of notification broadcast receiving terminals by the government. ing. In the prior wiring of the optical fiber cable, it was necessary to polish the connector end face with high accuracy after attaching the connector to the optical fiber core at the site. For that purpose, a special tool is required, and a certain level of skill is required to perform the polishing work with high accuracy, and not all electrical contractors can handle the preceding wiring of optical fiber cables. The shortage of workers who can handle the preceding wiring of the optical fiber cable and the purchase cost of special tools could not deny the promotion of popularization of the preceding wiring. (For example, Patent Document 1).
JP 2005-189531 A

  The problem to be solved by the present invention is that the preceding wiring of the optical fiber cable can be performed, but in order to perform the preceding wiring of the coaxial cable, the wiring work of the coaxial cable has to be performed separately, and the construction is troublesome twice. In particular, local governments are required to efficiently disseminate optical wiring work in depopulated areas other than densely populated houses.

  The present invention solves the above-mentioned problems, manufactures a wiring device with a cable in the factory in advance, and completes the indoor wiring work by reverse pulling from the indoor to the outdoor, so that the indoor work does not require optical technology. Provide an optical / coaxial composite outlet that can be used by construction contractors, and that can implement communications and broadcasting at the same time by simply connecting a single optical / coaxial composite cable. The task is to do.

In order to solve the above-described problems, the optical / coaxial composite outlet according to the present invention is an optical / coaxial composite outlet attached to a distribution board or an indoor wall surface, and the optical / coaxial composite outlet includes a case, an inner cover, and a makeup. And an optical fiber indoor cable with an optical jack connected to the end, and a coaxial cable with an F-type plug connected to the end , which are pre-installed at the factory, on the same side, the insertion portion for inserting the indoor cables and the coaxial cable of the optical fiber, a mounting portion for mounting the optical jack, a mounting portion for mounting the F-type contact tap, is provided in the optical fiber Indoor cable and the coaxial cable is led by a predetermined length from the insertion portion, the minimum track the fiber core of the optical fiber between the respective mounting portion and the insertion portion Songs guide wall for holding on diameter or provided, the gripping member is in said insertion portion for gripping an airtight bushing to keep the inter-inner outside airtight by inserting the respective cable, continuously to the gas-tight bushing for each cable The optical jack and the F-type plug are fixed by the case and the inner cover.

  The indoor cable and the coaxial cable are preferably composed of a composite cable of one optical fiber indoor cable and one coaxial cable, and can be connected by a single composite cable.

  According to the invention of claim 1, since the outdoor work has the advantage that it can proceed regardless of the convenience of the resident, the outdoor work can effectively utilize a construction contractor having the skill of optical connection, and the indoor work is light. Since electric contractors who do not have the skill of connection can be utilized, it is possible to provide a composite outlet that can be shared by the contractor even if the work is concentrated.

  According to the second aspect of the present invention, communication and broadcasting can be performed simultaneously by passing only one optical / coaxial composite cable, so that the construction cost can be reduced and the work efficiency can be improved.

  1A and 1B are a front perspective view and a rear perspective view of an optical / coaxial composite outlet A according to the present invention, and FIG. 2 is an exploded view of the optical / coaxial composite outlet A (hereinafter referred to as a composite outlet) A. A perspective view is shown. This composite outlet A is configured to be installed in a distribution board or on an indoor wall surface. In this composite outlet A, an optical fiber indoor cable 1 and a coaxial cable 2 are attached in advance, and an optical fiber jack 3 and an F-type plug 4 attached to the optical fiber indoor cable 1 and the coaxial cable 2 are combined. It is exposed on the bottom of the outlet A, and can be easily installed even by a construction contractor who has no technology for optical connection of optical fibers. One cable consisting of an optical fiber indoor cable and a coaxial cable. The end of the composite cable B is separated into an optical fiber indoor cable (hereinafter referred to as an indoor cable) 1 and a coaxial cable 2, and an optical fiber jack 3 and an F-type plug 4 are connected to the tip of the cable B. The optical fiber jack 3 and the F-type plug 4 are accommodated in the composite outlet A, and the indoor cable 1 and the coaxial cable 2 are This cable is drawn from the bottom of the combined outlet A. This cable has a length of 10 to 30 meters and a plurality of types of composite outlets A are created in the factory. The composite outlet A can be supplied.

  The composite outlet A includes a case 10, an inner cover 11 that covers the case 10, and a decorative cover 12 that prevents the case 10 from being affected by dust and the like. Screw holes 15 are formed so as to be able to be fixed to the wall surface of the room or indoor with screws, a mounting portion 16 for mounting the optical fiber jack 3, a mounting portion 17 for mounting the F-type plug 4, and a minimum fiber core wire. A bending guide wall 20 that holds the bending radius or more, a gripping member 25 that grips the indoor cable 1 and the coaxial cable 2, and a dustproof / airtight bushing 26 are accommodated, and the indoor cable 1 and the coaxial cable 2 are accommodated in the case 10. An insertion portion 27 for insertion is provided. An insertion hole 28 through which the cables 1 and 2 are inserted into the insertion portion 27, an insertion hole 29 for inserting a fiber plug into the optical fiber jack 3, and a notch 30 through which the tip of the F-type plug 4 protrudes are formed on the bottom surface. Is formed.

  The gripping member 25 is a metal that is bent in a U-shape when viewed from the side, and U-shaped cuts 31 are formed on the front and back surfaces. The airtight bushing 26 is made of an elastic member such as rubber, and an insertion hole 32 through which the cable is inserted in the front-rear direction is formed. The airtight bushing 26 is disposed outside the gripping member 25 of the insertion portion 27 so that dust is contained inside the case 10. Etc. to prevent intrusion.

  The curved guide wall 20 is composed of an inner wall 21 and an outer wall 22 arranged side by side at a predetermined interval, and the inner wall 21 has a radius that is approximately equal to or larger than the minimum allowable bending dimension R15 of the optical fiber core wire 18. The outer wall 22 is formed in a circular shape, the outer wall 22 is formed in a semicircular shape, and both ends are formed with straight walls 22a and 22b extending substantially linearly toward the lower side of the case. A guide wall that reaches the wall surface and individually guides the indoor cable 1 and the coaxial cable 2 on the input side to the curved guide wall 20 is formed, and the other straight wall 22b is formed to protrude downward from the inner wall 21. A mounting portion 16 for mounting the optical fiber jack 3 is constituted by the wall 23.

  The inner cover 11 has a plate shape and is formed with four locking portions 35 projecting from the surface side. The inner cover 11 can be fixed to the case 10 with a screw 37 through the hole 36, and the front surface of the case 10 can be closed at the time of fixing. It is like that. At the lower end, an overhang portion 40 for closing the insertion portion 27 of the case 10 and an overhang portion 41 for fixing the F-type plug 4 of the coaxial cable are formed. One end of the insertion hole 28 is formed in the overhang portion 40. Is formed. One end of the insertion hole 30 is formed in the overhanging portion 41.

  The decorative cover 12 is formed with a hook (not shown) that is engaged with the engaging portion 35 of the inner cover 11 protruding from the back surface, and the hook is pressed from above in a state of being overlapped with the inner cover 11, so that the hook of the inner cover 11 is formed. It is locked by the locking portion 35, covers the front surface of the inner cover 11, and can be fixed to the case 10 via the inner cover 11.

  The composite outlet configured as described above separates the terminal of the composite cable B of one core of the indoor cable and one core of the coaxial cable into the indoor cable 1 and the coaxial cable 2, and inserts the insertion hole 32 of the airtight bushing 26 into each end. The optical fiber jack 3 and the F-type plug 4 are connected to the part.

  Next, after the optical fiber jack 3 is fitted into the mounting portion 16 and the F-type plug 4 is fitted into the mounting portion 17, the indoor cable 1 is routed along the inner wall 21 and the coaxial cable 2 is routed along the outer wall 22. The airtight bushing 26 is accommodated in the insertion portion 27 while the cables 1 and 2 are inserted into the notches 31 of the gripping member 25 disposed in the insertion portion 27, and the case 10 is attached to the case 10 as shown in FIGS. The indoor cable 1 to which the optical fiber jack 3 is attached and the coaxial cable 2 to which the F-type plug 4 is attached are accommodated.

  Next, the inner cover 11 is overlaid on the case 10 and fixed with screws 37, so that the case 10 is sealed with the inner cover 11, and the insertion portion 27 of the case 10 is closed and stretched with the overhanging portion 40 of the inner cover. The F-type plug 4 of the coaxial cable can be fixed at the outlet 41.

  When the decorative cover 12 is overlaid on the inner cover 11 and pressed from above, the hook is locked to the locking portion 35 of the inner cover 11 and the decorative cover 12 is fixed to the inner cover 11 as shown in FIG. Thus, the optical fiber jack 3 and the F-type plug 4 are exposed from the lower part of the composite outlet A, and the composite outlet A to which the composite cable B is attached can be assembled.

  This assembly is performed at the factory, and the composite outlet A with the composite cable B having a predetermined length attached may be shipped.

  Next, installation of the composite outlet A will be described. For outdoor construction, the optical fiber drop cable 41 is connected to the optical cable 43 wired up to the utility pole on the pole, pulled down, and drawn into the V-ONU 42 installed on the shop side.

  Next, in-house wiring work will be performed at the convenience of the residents. As described above, the optical / coaxial composite outlet A is installed on the wall as described above, and the composite cable B coming out from the composite outlet A is simultaneously pulled out to the outside through the in-wall piping route and combined into the V-ONU 42. The end of the cable B is pulled in, the tip of the composite cable B is separated into the indoor cable 1 and the coaxial cable 2, and an F-type plug connector is connected to the end of one of the separated coaxial cables 2. Since the construction up to this point does not require advanced optical connection technology, it can be carried out by a general electrician.

  Thereafter, the optical fiber drop cable 41 that was first drawn in as an outdoor work by a construction company having a technology capable of performing the optical connection work is connected to the optical fiber line of the V-ONU 42 and the composite cable B from the inside in the V-ONU 42. The two-core indoor cable 1 is connected to the F-type plug of the V-ONU 42 by plugging in the F-type plug connector attached to the coaxial cable 2 and the work is completed. You can do it.

  As described above, according to the composite outlet of the present invention, the installation work of FTTH can be carried out by a different construction contractor for indoors and outdoors, and the construction contractor having the optical connection skill and the optical connection skill can be reduced. It becomes possible to correspond to each contractor who does not have, and it is possible to provide an optimal outlet when the installation work is concentrated by a limited number of contractors.

Front perspective view and rear perspective view of a composite outlet according to the present invention Exploded perspective view of the above composite outlet Front view and front perspective view for explaining a state in which the optical cable and the coaxial cable are accommodated in the case Illustration of the installation status of the above composite outlet

DESCRIPTION OF SYMBOLS 1 Optical fiber indoor cable 2 Coaxial cable 3 Optical fiber jack 4 F type plug 10 Case 11 Inner cover 12 Cosmetic cover 16 Mounting part 17 Mounting part 20 Curved guide wall 25 Gripping member 26 Airtight bushing 27 Insertion part A Optical / coaxial composite outlet

Claims (2)

It is a light / coaxial composite outlet that is attached to the inside of a distribution board or an indoor wall, and the light / coaxial composite outlet comprises a case, an inner cover, and a decorative cover .
An optical fiber indoor cable with an optical jack connected to the end and a coaxial cable with an F-type plug connected to the end are pre-installed at the factory,
To the same side, and the insertion portion for inserting the indoor cables and the coaxial cable of the optical fiber, a mounting portion for mounting the optical jack, a mounting portion for mounting the F-type contact tap, is provided,
The optical fiber indoor cable and the coaxial cable are drawn out at a predetermined length from the insertion portion,
Between each mounting portion and the insertion portion is provided songs guide wall for holding the fiber of the optical fiber greater than or equal to the minimum track radius, in the above insertion portion between the inner external by inserting each cable An airtight bushing that maintains an airtight state and a gripping member that grips each cable continuously to the airtight bushing are disposed, and the optical jack and the F-type plug are fixed by the case and the inner cover. Optical / coaxial composite outlet.   The optical / coaxial composite outlet according to claim 1, wherein the indoor cable and the coaxial cable are composed of a composite cable of one optical fiber indoor cable and one coaxial cable.

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