JP2958942B2 - Optical fiber extra length storage shelf - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extra length storage shelf in which extra length storage trays for storing extra lengths of optical fiber cores are stacked in multiple stages.

[0002]

2. Description of the Related Art FIG. 2 is an explanatory view of an example of a conventional optical fiber extra length storage shelf, wherein FIG. 2 (1) is a state diagram at the time of storage, and FIG. 2 (2) is a state diagram at the time of work. are shown, respectively (b) shows a side view, (b) drawing (b) arrow view of _{X 1 -X 1, X 2 -X} 2 of FIG. In the drawing, reference numeral 1 denotes a book-type extra length storage tray that stores an extra length 9 in a connection portion 8 of an optical fiber core 7, and on one side surface, an adjacent tray 1 is connected to a hinge 2 by a hinge 2.
To form a stacked shelf. Then, the lowermost tray 1a of the tray 1 having the shelf shape is directly mounted and fixed to the substrate 3 with mounting screws 6 or the like. And
During the work, the work is performed by exposing the necessary upper surface of the tray 1 as shown in FIG.

FIGS. 3A and 3B are explanatory views of another example of a conventional optical fiber extra length storage shelf, wherein FIG. 3A is a side view at the time of storage and FIG. 3B is a side view at the time of work. . In the present structural example, similarly to the above, a shelf-like body in which a plurality of extra-length storage trays 1 are stacked in multiple stages is formed by mounting the lowermost tray 1a on a mounting table 4 provided on the substrate 3 so as to protrude in the vertical direction. It is attached by. At the time of work, as shown in FIG. 2B, the upper tray 1 is tilted toward the substrate 3 and the necessary upper surface of the tray 1 is opened to perform the work.

[0004]

In the above-mentioned conventional optical fiber extra length storage shelf, the structure shown in FIG. 2 has a storage surface for the optical fiber core since the extra length storage tray is directly attached to the substrate. Is vertical, and there is a problem that it is difficult to perform the processing operation of the optical fiber. Further, as shown in FIG. 3, in the structure in which the extra length storage tray is mounted on a mounting stand protruding in the vertical direction of the substrate, it is necessary to secure an open space for the extra length storage tray, and the optical fiber core connection portion is not provided. There is a problem that the occupied space becomes large.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and provides an optical fiber extra length storage shelf which can reduce the space occupied by the optical fiber cable connecting portion and has good workability. The feature is that a plurality of extra-length storage trays are mounted on one side, and adjacent trays are connected by hinges, and a stacked shelf is provided movably in the vertical direction with respect to the substrate. The bottom tray was fixedly attached to the table.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view of a specific example of an optical fiber extra length storage shelf according to the present invention. FIG. 1 (a) is a side view at the time of storage, and FIG. 1 (b) is a side view at the time of work. is there. As shown in the drawing, a plurality of extra-length storage trays 1 storing the extra lengths of the optical fiber core connection portions are arranged on one side thereof with adjacent trays 1.
Are connected by a hinge 2 to form a stacked shelf.
The lowermost tray 1a is mounted on a mounting table 4 movable vertically by a slide mechanism 5 with respect to the substrate 3 with mounting screws 6. At the time of work, the open space of the tray 1 can be secured by moving the mounting table 4 in the direction of the arrow in the figure by the slide mechanism 5 as shown in FIG. The optical fiber core housing surface can be exposed, and since the optical fiber core housing surface is always kept horizontal, workability is good. After the work such as connection, the tray 1 is moved to the position shown in FIG.
In this way, the space occupied by the core wire connecting portion can be reduced.

FIG. 4 shows an example in which the optical fiber extra length storage shelf of the present invention is applied to the extra length storage portion of the optical fiber fusion splicing portion of the optical fiber cable connection box, and FIG. 4) is a front view showing a main part, and FIG. 4B is a side view showing a main part. In the drawing, 10 is the junction box body, 11
Is a door, and 12 is a base plate installed on the back of the main body 10. On the base plate 12, a wiring duct 15, a pipe guide 16,
The extra length storage shelf 18 of the present invention having the movable mounting base 22, the tension member holder 19, and the cable fixing bracket 20 are provided. On the other hand, a flat handle 13 is provided on the door 11. On the lower side of the main body 1, there is a cable inlet 21 for introducing an optical fiber cable into the main body 1, and on the upper side there is a cable connector 17 for a pipe cable 23 consisting of a pipe through which an optical fiber core is passed. A pipe cable 23 is connected to 17. Further, a pipe connector 14 is provided in the junction box main body 1 for removing the jacket of the pipe cable and fixing the individual pipes one by one.

[0008]

As described above, according to the optical fiber extra length storage shelf of the present invention, the mounting table on which the optical fiber extra length storage tray is mounted can be moved vertically with respect to the substrate. With this arrangement, the space occupied by the optical fiber core connection portion can be reduced, and the workability is good. Therefore, it is very effective when used in a connection box or a connection frame of an optical LAN system requiring many connections in a small space.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a specific example of an optical fiber extra length storage shelf of the present invention. FIG. 1 (a) is a side view at the time of storage, and FIG. 1 (b) is a side view at the time of work.

FIGS. 2A and 2B are explanatory diagrams of an example of a conventional optical fiber extra length storage shelf, wherein FIG. 2A shows a state diagram at the time of storage, and FIG. 2B shows a state diagram at the time of work; (A) The figure is a side view,
(B) drawing is an arrow view of _{X 1 -X 1, X 2 -X} 2 in (b) FIG.

FIGS. 3A and 3B are explanatory views of another example of the conventional optical fiber extra length storage shelf, in which FIG. 3A is a side view at the time of storage and FIG. 3B is a side view at the time of work.

FIG. 4 shows an example in which the optical fiber extra length storage shelf of the present invention is applied to the extra length storage portion of the optical fiber cable connection box;
FIG. 4A is a front view showing the main part, and FIG.
FIG. 3 is a side view showing a main part.

[Explanation of symbols]

 1 Extra Length Storage Tray 2 Hinge 3 Substrate 4 Extra Length Storage Shelf Mount 5 Slide Mechanism

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Claims (1)

(57) [Claims] 1. A shelf formed by stacking a plurality of extra-length storage trays each storing an extra length of an optical fiber cable connecting portion and connecting adjacent trays on one side thereof with a hinge to a substrate. An optical fiber extra-length storage shelf, wherein a lowermost tray is fixedly attached to a mounting table provided so as to be movable in a vertical direction.