JPH0542407Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a surplus length storage tool for storing the surplus length of optical fiber cores in an optical fiber cable connection section.

[Conventional technology]

Conventionally, as this type of optical fiber surplus length storage tool, a plastic sheet with grooves for wrapping the optical fiber, or a plastic sheet on which the optical fiber is placed, folded, and stored have been used. There is.

[Problem that the invention attempts to solve]

Conventional tools for storing excess length of plastic sheets in which optical fiber cores are sequentially wound around cut grooves, and tools for storing excess length of plastic sheets in which optical fiber cores are placed, folded, and stored, are difficult to store. There is also the problem that the stored optical fibers may come loose.

[Means for solving problems]

This invention solves the conventional problems and makes it easy and reliable to store the excess length of the optical fiber in the optical fiber cable connection part, while maintaining the transmission characteristics of the optical fiber in the surplus length storage part. The device provides a tool for storing the excess length of the optical fiber, which includes a seat body integrally formed with a separator for fixing the optical fiber connection part and a bag for storing the excess length of the optical fiber, and the sheet body. In particular, the bag for storing the extra length of the optical fiber core is comprised of a bag provided on one edge of the sheet body and a bag provided on the one edge of the sheet body. A mode in which the bag is formed from the other opposing edge to the center of the sheet body, and a mode in which a permissible storage arc of the optical fiber core is printed on the surface of the sheet body, and the sheet body is made of a plastic sheet. It is characterized by

[Effect]

The present invention fixes the connection part of the optical fiber core with a separator integrally formed on the sheet body, and covers the surface where the excess length of the optical fiber core is stored in the bag with an outer lid. Since it has a structure that protects the cable connection portion and the excess length of the optical fiber, it is possible to prevent the optical fibers from coming apart and to make the storage operation easy and reliable. Examples will be described below based on the drawings.

〔Example〕

FIG. 1 shows an outline of the structure of an embodiment of an optical fiber cable connecting section surplus length storage device according to the present invention. This embodiment includes a bag 1 formed along one edge of a sheet body 7 for storing the extra length of the optical fiber core, and
This is an example of a structure in which a bag 2 is formed from the other edge to the center of the sheet body 7. Reference numeral 5 denotes a separator that includes the optical fiber connecting portion and inserts a convex portion into the cut groove 3, and fixes the optical fiber wire connecting portion to the sheet body 7; 6, the convex portion is inserted into the cut groove 4; This is an outer cover that covers and protects the entire seat body that accommodates the optical fiber connection portion and the extra length of the optical fiber. Reference numerals 8 and 9 are printed indications on the sheet body 7 showing the allowable storage arc of the optical fiber core. Note that the sheet main body 7 in this example was formed from a plastic sheet. As shown in this example,
At least a part of the optical fiber is integrally molded into a bag shape that stores the excess length of the optical fiber, and the structure is equipped with a separator. Fixed to the main body. In addition, in this embodiment, the sum of the storage depths of the extra lengths of bags 1 and 2 is approximately 1/2 of the extra length of the sheet body 7, and the extra length of the optical fibers is stored. Then, due to the elastic repulsive force of the optical fiber cores stored in bags 1 and 2, the extra length of the optical fiber cores is inserted to the bottom depth of bags 1 and 2, and the optical fiber cores are separated. Easy to store. After storing the excess length, the seat body 7
By covering the extra length storage surface with the outer lid 6, the storage state is maintained and the whole is fixed.

Further, since the optical fibers are stored and managed in a permissible storage arc along the printed markings 8 and 9 on the sheet body 7, the characteristics of the optical fibers can be maintained.

FIG. 2 shows the state of an embodiment in which the optical fiber core wire surplus length is stored in the surplus length storage tool of the optical fiber cable connection portion of the present invention. The same reference numerals as in FIG. 1 indicate the same parts. In this embodiment, the length W' of the separator 5 that fixes the optical fiber connection part is about 40 mm, the total length h of the sheet body 7 is about 120 mm, the depth h'' of the bag 1 and the bag 2
The sum of the depths h' is h'+h''≦h/2.The diameter D of the allowable storage arc in the printed displays 8 and 9 is 80 mmφ, the width W of the seat body 7 is approximately 200 mm, and the outer lid 6 When the convex portion of the bag 2 was inserted into the cut groove 4 and the outer cover 6 was placed over the sheet body 7, the outer cover 6 overlapped with the bag 2 to a depth h' of about 20 mm.This example As a result, the optical fiber core 10 did not come loose at all, the storage work was easy, and the entire storage section could be stably fixed.

[Effect of idea]

As explained above, the optical fiber cable connecting part surplus length storage device of the present invention has a separator for fixing the optical fiber cable connecting part, and is integrally formed with a bag for storing the surplus length of the optical fiber cable. Since the seat is equipped with a sealed sheet body and an outer cover that protects the entire surface of the seat body, the stored optical fiber cores will not come loose, making the storage process easy and reliable.
The stored state is stably fixed, the characteristics of the optical fiber can be maintained, and it is particularly effective when applied to store excess length in the case of optical cable connection with a large number of optical fibers.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of the structure of an embodiment of an optical fiber cable connecting part extra length storage tool according to the present invention, and Fig. 2 shows an embodiment of the optical fiber cable connecting part surplus length storing tool according to the present invention. It is a state explanatory diagram. 1, 2... Bag, 3, 4... Cut groove, 5... Separator, 6... Outer lid, 7... Sheet body, 8, 9
...Print display, 10...Optical fiber core.

Claims (1)

[Scope of Claim for Utility Model Registration] A separator 5 for fixing the optical fiber connection part, which is an optical fiber cable connection part storage tool for storing an optical fiber connection part and an optical fiber cable surplus part.
and an integrally formed sheet main body 7 with a bag for storing the excess length of the optical fiber core, and an outer lid 6 that protects the entire surface of the sheet main body 7, and the bag is provided with the sheet main body 7. 7, and a bag 2 formed from the other edge opposite to the one edge to the center of the sheet body 7, and the bag 1 has a depth h. ″ and bag 2
The sum of the depths h' is h'+h''≦h/2 with respect to the total length h of the sheet body 7, and the sheet body 7 has a printed display 8 of the allowable storage arc of the optical fiber core on its surface. 2. A tool for storing excess length of an optical fiber cable connection part, characterized in that the sheet main body 7 is made of a plastic sheet.