JP3004237B2 - Optical connection box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical connection box used for connecting an optical fiber cable.

[0002]

2. Description of the Related Art To splice optical fiber cables along the way, an optical junction box having a fusion tray inside is used. However, in the conventional optical connection box, as shown in FIG. 7, the cable clamps 2 and 2 for input and output and the tension member clamps 3 and 3 are fixed on the upper part of the box body 1, and the inside of the box body 1 is fixed. Since the fusion tray 4 and the connector connection base 5 are fixed to each other, there is no problem when the input and output of the optical fiber cable is performed from the upper part of the box main body 1. If it is desired to start from the beginning, the entire box had to be turned upside down.

Further, when an optical fiber cable is to be inserted from the upper part of the box body 1 and to be output from the lower part,
This optical connection box could not be used, and a separately designed and manufactured optical connection box had to be used. For this reason, the conventional optical connection box has no flexibility in the direction of the incoming and outgoing lines of the optical fiber cable, and there is a disadvantage that it is inconvenient to use it on site.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems and to provide an optical connection box having a degree of freedom in the directions of the input and output lines of an optical fiber cable. .

[0005]

The optical connection box according to the present invention, which has been made to solve the above-mentioned problems, is provided with an optical connection box on either the upper or lower side of the box.
In addition to allowing incoming wire from the direction , outgoing wire members and extra length
The storage unit is mounted so that it can be turned upside down. Moreover, while enabling incoming from the vertical in either direction of the box, or to the mounting position can upside down with respect to the box body fusion tray and outgoing member, to allow incoming from the vertical in either direction of the box Along with
The code reel base on which the outgoing wire member and the extra length storage section are mounted may be mounted so that it can be turned upside down. As described above, the optical connection box according to the present invention has an outgoing line member and an extra length storage portion, regardless of whether the incoming and outgoing direction of the optical fiber cable is up or down .
Or fusion tray and outgoing member, or outgoing member and extra length
It is possible to cope only by reversing the mounting position of the code reel base on which the storage unit is mounted , and there is an advantage that it is convenient to use on site. Hereinafter, preferred embodiments of the present invention will be described.

[0006]

1 and 2 show a first embodiment of the present invention, in which 1 is a box main body, and 2 is a cable clamp as an input wire member fixed on the left and upper sides of the box body, respectively. is there. The optical fiber cable (not shown) is pulled into the box body 1 by being clamped by these cable clamps 2 and by clamping the tension wire inside thereof to the tension member clamp 3 at the left central portion of the box body 1. Note that the tension member clamp 3 is also an input member, but in this case, by installing the non-directional tension member clamp 3 at the center on the left side of the box body 1, it is possible to cope with the case where the input direction of the optical fiber cable is up or down. It is like that. Of course, the tension member clamps 3 may be arranged above and below the box body 1 in correspondence with the respective cable clamps 2.

On the right side of the box body 1, a fusion tray 4 and a cord clamp 6 as an outgoing wire member are arranged. In the present invention, the outgoing wire member can be reversibly attached to any of the upper and lower positions of the box main body 1. In the first embodiment, in particular, the cord clamp 6, which is the outgoing wire member, The attachment position of the fusion tray 4 to the box body 1 can be turned upside down. Such a change of the attachment position can be easily performed by arranging a plurality of attachment holes in the base plate 7 and providing detachable attachment means on the fusion tray 4 and the cord clamp 6.

The fusion tray 4 is used to draw in the cords and cords of the optical fiber cable, fuse the cords inside the cords, and store the extra length portion in a loop shape and house it. Is not the gist of the present invention, and the description is omitted.

In the optical connection box according to the first embodiment, since the cable clamps 2 as input members are provided on the upper and lower sides of the box main body 1, there is no problem even if the optical fiber cable is input in either the upper or lower direction. When the outgoing line is directed downward, the cord clamp 6 may be attached to the lower portion of the box body 1 and the fusion tray 4 may be attached slightly above as shown in FIG. When the outgoing direction of the optical fiber cable is upward, the cord clamp 6 may be replaced with the upper part of the box body 1 as shown in FIG. 2, and the fusion tray 4 may be attached to the lower side.

As described above, the optical connection box according to the present invention can be used regardless of whether the direction of the input and output lines of the optical fiber cable is up or down. Since there is no need to use a box with specifications, it is convenient for use on site. In addition, in order to be able to freely change the positions of the input and output lines of the optical fiber cable in this way, concave portions for inputting and outputting the optical fiber cable are provided at two upper positions and two lower positions of the box body 1. Preferably, the unused recesses can be closed by blinds 8.

As shown in FIG. 3, in this embodiment, the blind 8 is composed of two plates 8a and 8b, and a tongue 8c is formed at the upper end thereof and bent inwardly of the box body 1. . The box body 1 is provided with a recess 9 as shown in the figure, and the two plates 8a and 8b of the blind 8 can be inserted into the side plate 1a of the recess 9 of the box body 1. An inward projection 1b is formed on the side plate 1a, a hole 8d is provided at a corresponding position on the plate 8b inside the blind 8, and the projection 1b is inserted when the blind 8 is inserted to a predetermined depth. It is preferable to fit in the hole 8d.

After the unused recess 9 is closed by the blind 8 in this manner, the box body 1 is covered with a lid 10 and fixed with screws or the like. In this example, an appropriate number of notches 11 are formed in the side plate 1a of the box body 1 as shown in FIG.
A bent plate 12 is formed at a corresponding position on the side plate 10a. Therefore, positioning when the lid 10 is attached to the box body 1 is easy.

FIG. 5 and FIG. 6 are views showing a second embodiment of the present invention. Also in this embodiment, a cable clamp 2 as an input wire member is provided on each of the upper and lower sides of the left side of the box main body 1, and a tension member clamp 3 is provided on a left central portion of the box main body 1. The fusing tray 4 is fixed to the center of the box body 1.

On the other hand, on the right side of the box main body 1, a code reel base 14 having a cord clamp 6 as an outgoing wire member and an extra length storage section 13 is attached to the box main body 1 so as to be able to be turned upside down. . The optical fiber drawn in from the cable clamp 2 is fused in the fusion tray 4, the extra length cord is wound around the extra length storage portion 13, and the wire is output from the portion of the cord clamp 6 to the outside.

The optical connection box according to the second embodiment also has a cord reel base 14 according to the outgoing direction of the optical fiber cable.
5 or FIG. 6, the optical fiber cable can respond to the incoming and outgoing lines in any direction, such as the conventional case. Since it is not necessary to use a box with a different specification, it is convenient for use on site.

[0016]

As described above, the optical connection box according to the present invention allows a wire to be inserted from either the upper or lower direction of the box body, and also includes an outgoing wire member and an extra length storage portion, or a fusion tray.
-And outgoing members, or outgoing members and extra length storage
The cord reel base is attached upside down so that the direction of the optical fiber cable input and output lines can be given a degree of freedom, so that workers can easily respond to the direction of the input and output lines at the site. There is.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment.

FIG. 2 is a front view showing a state where the outgoing line direction is set to the upper side.

FIG. 3 is a perspective view of a blind portion.

FIG. 4 is a perspective view showing a fitted state of the lid and the box body.

FIG. 5 is a front view showing a second embodiment.

FIG. 6 is a front view showing a state in which the outgoing line direction is on the upper side.

FIG. 7 is a front view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box main body 1a Side plate 1b Projection 2 Cable clamp 3 Tension member clamp 4 Fusion tray 5 Connector connection stand 6 Cord clamp 7 Base plate 8 Blind 8a Plate 8b Plate 8c Tongue piece 8d Hole 9 Depression 10 Cover 10a Side plate 11 Notch 12 Bending Piece 13 Extra storage section 14 Code reel stand

Claims (3)

(57) [Claims] 1. An optical connection box, wherein a wire can be inserted in any direction from above and below the box, and an outgoing wire member and an extra length storage portion are mounted so as to be able to be turned upside down. 2. An optical connection box, wherein a wire can be inserted in any direction from the top and bottom of the box, and the mounting positions of the fusion tray and the outgoing wire member with respect to the box body can be turned upside down. 3. An optical connection box characterized in that a wire can be inserted in any direction from above and below the box, and a code reel base on which an outgoing wire member and an extra length storage section are mounted is mounted so as to be able to be turned upside down.