JPH0245841Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an optical termination device for organizing and storing surplus portions of optical fibers, which are interconnecting portions of optical fibers.

[Conventional technology]

When connecting optical fiber cores with each other using fusion splicing or connectors, or when changing connections between cores, extra core lengths are provided to facilitate the connection work. It is being Conventionally, the extra length of the core wire is wound around each core wire to have an appropriate diameter, and each core wire is stored in a separate storage section. In addition, for example, if each outer sheath of the optical fiber is made of different materials such as FRP material and nylon material, the radius of curvature of the winding portion of the optical fiber will be different when processing the excess length. Therefore, extra length storage sections of various sizes are provided. FIG. 3 is a diagram showing an example of a conventional optical termination device of this type.
02 is the FRP optical fiber surplus length processing storage section.
03 is a storage section for processing the excess length of the optical fiber cable in the office made of nylon optical fiber, and 03 is located between the storage sections 01 and 02, and is used to store the FRP optical fiber and the optical fiber cable in the office. 04 is a holding part for the connection part that removably holds the fusion spliced part between the FRP optical fiber core wire and the nylon optical fiber core wire, 05 is a connector holding portion that holds the connector of the connector connection portion.

[Problem that the invention attempts to solve]

As described above, in the conventional optical termination device, it is necessary to configure various surplus length processing storage sections 01 to 03, and furthermore, the connection section holding section 04 and the connector holding section 05 are arranged in each storage section 01 to 03, respectively. Since it is necessary to arrange it at a separate location, the overall structure of the optical termination device becomes complicated and has the disadvantage of increasing its size. Furthermore, since the overall structure is complicated, there is a problem in that it is not possible to smoothly insert and remove the optical fiber.

In order to solve the above-mentioned conventional problems, the present invention has the same shape for each extra-length fiber storage section, so that even if the winding diameters are different, the extra-length fibers can be stored in the same storage section, and the overall structure is It is an object of the present invention to provide an optical termination device that can be made smaller and simpler, and can also facilitate optical termination operations such as storing and organizing optical fibers.

[Means for solving problems]

The optical termination device according to the present invention includes at least one extra-length fiber storage section for winding and storing the extra-length fibers, and a shelf board of the extra-length fiber storage section on the extra-length fiber entry/exit side. A holder that is attached to a substantially central end portion and holds a core wire connection portion; and a partition wall that is provided approximately in the center of the shelf board in the depth direction and that is smaller than the depth dimension of the shelf board. It is characterized by using the same type of storage sections as the extra length fiber storage sections, and each storage section has a removable holder for holding the fiber connection section, and each storage section is divided into partitions. It is made up of walls.

[Effect]

According to the present invention, each extra length fiber storage section has the same shape, and even if the extra fiber length sections have different winding diameters, they can be stored in the same storage section, and the overall configuration of the optical termination device is is made smaller and simpler. In addition, termination work such as storing and organizing optical fiber wires becomes easier.

〔Example〕

FIGS. 1A, B, and C are views showing an embodiment of the present invention, in which reference numeral 1 denotes an extra-length fiber storage section for the optical fiber, which is structured in five stages in this embodiment. Reference numeral 2 designates a shelf board of the extra-length fiber storage section 1. As shown in FIG. It is smaller than the size of the partition wall 12, that is, it is arranged with a gap 13 between both ends of the partition wall 12. The height of this partition wall 12 is formed to be at least equal to or less than the distance from other shelf boards stacked on top of each other. Reference numeral 3 denotes a holder that is removably attached to the approximately central end of the extra length fiber inlet/output side of the shelf board 2 and holds the fiber connection portion, and this holder 3 holds the fusion splice portion and the connector connection. It is designed to hold both core wire connection parts of the part. Reference numeral 4 denotes a board on which the extra length fiber storage section 1 is attached, 5 and 6 are side walls of the fiber storage section 1, and these side walls 5 and 6 are attached to the shelf board 2.
The side walls 5,
Grooves etc. are formed in the thickness direction of 6. Reference numeral 7 designates metal fittings for arranging the side walls 5 and 6 at substantially predetermined intervals and for attaching the shelf board 2 within the predetermined intervals. Further, the holder 3 for holding the core wire connection portion is removably attached within a gap 13 formed at one end of the partition wall 12, as shown in FIG.

To explain the operation of the embodiment of the present invention, the optical fiber is introduced into the extra-length fiber accommodating portion 1 via a fiber clasp provided in the optical termination device. For example, in the case of FRP optical fibers, the fibers introduced into the extra-length fiber storage section 1 are placed on the surface 11 of the shelf board 2 at intervals of 13, with the partition wall 12 approximately in the center.
The ends of each core wire are connected and the connecting portions are attached to the holder 3, and the wires are further wound and arranged on the upper part of the wound core wire, and the end portions are wrapped around the excess length. It is led out from the core wire storage section 1.

Next, in the case of an optical fiber coated with a relatively soft coating material other than FRP coated optical fiber, for example, a nylon-based coating, the coated optical fiber introduced into the extra length coated fiber storage section 1 is placed on a shelf board. 2, that is, the left half partitioned by the partition wall 12, and the connecting portion thereof is arranged so as to be freely attachable to the holder 3,
The further wound optical fiber core wire is then stored in the right half of the shelf board 2, that is, the right half partitioned by the partition wall 12, and its end portion is led out from the extra length core wire storage section 1.

Furthermore, in the case of optical fibers having different coating materials, such as an FRP optical fiber and another optical fiber (including optical cord cable), the FRP optical fiber is The shelf board 2 is wound entirely around the partition wall 12 of the shelf board 2 through the intervals 13, 13, with the partition wall 12 of the shelf board 2 approximately at the center. It should be placed on the left half or right half of the partition. The mutual connection portions of these core wires are attached to the holder 3.

[Effect of idea]

According to the present invention, each extra-length fiber storage section has the same shape, and the extra-length fibers can be stored in the same extra-length fiber storage section without being differentiated depending on the type of the fibers to be stored. Even if the winding diameter of the wire is different, the size of the winding diameter (for example, in the case of FRP, the diameter is 200
mm or more (80 mm in the case of nylon), it can be easily stored using partition walls and holders. This makes it possible to smoothly wind the extra length of the core wire, thereby preventing the occurrence of optical loss or breakage of the core wire, and also making it possible to downsize and simplify the overall configuration. Excellent effects such as optical termination work such as storing and organizing optical fibers can be achieved easily.

[Brief explanation of the drawing]

Figures 1A, B, and C are diagrams showing the configuration of an embodiment of the present invention, respectively, with Figure 1A being a front view and Figure 1B being a front view.
is a side view, Figure 1C is a bottom view, Figure 2 is Figure 1A.
FIG. 3 is a detailed view of the shelf board of FIG. 3, which shows a conventional example. 1... Extra length fiber storage section, 2... Shelf board, 3... Holder, 12... Partition wall.

Claims (1)

[Scope of utility model registration request] At least one extra-length fiber storage section for winding and storing the extra-length fibers, and a shelf board of the extra-length fiber storage section, which is attached to an end approximately in the center on the extra-length fiber entry/exit side; A light comprising: a holder for holding a core wire connection portion; and a partition wall provided substantially in the center of the shelf board in the depth direction and smaller than the depth dimension of the shelf board. Termination device.