JPH10332948A - Terminating cabinet for coated optical cable fiber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily secure a fitting space and to obtain neatness. SOLUTION: A take-up part 22 which is formed, for example, elliptically is wound with a surplus part of a coated optical cable fiber 50 and after the coated optical cable fiber 50 is terminated through a terminating means and connectors 60 and 61, a cover body 30 is mounted on a cabinet main body 20 to fit the cabinet main body 20 at the same position with a protector 40, easily secure the fitting space, and also obtain neatness. Further, the inside of the cabinet main body 20 is closed with the cover body 30, so the inside of the cabinet main body 20, etc., is made nearly hermetic, and the protector 40, connectors 60 and 61 are held in a stable state without being exposed to wind and rain.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a termination cabinet for an optical fiber cable for terminating a surplus portion of the optical fiber cable, and more particularly to a security device for protecting communication equipment from surge voltage or the like. The present invention relates to a termination cabinet for an optical fiber cable, which can be mounted so as to cover up a vessel.

[0002]

2. Description of the Related Art Conventionally, for example, in a termination cabinet for terminating an optical cable, a method has been adopted in which a surplus portion of an optical cable core is collectively stored in a predetermined shape.

In this case, for example, an extra length portion is wound around an elliptical guide projecting from a thin rectangular parallelepiped container. The diameter of the guide maintains the minimum radius of curvature of the optical fiber cable. The dimensions are designed so that the optical fiber cable does not bend or the like.

On the other hand, a subscriber protector is provided at a boundary between an outside line and an inside line in order to protect communication equipment from shocks due to lightning and other abnormal voltages.

[0005]

When the above-mentioned termination cabinets and protectors are attached to, for example, each subscriber's house side, it is necessary to attach them individually. Therefore, it is necessary to secure a space required for these attachments. Not only is it necessary, but there is a problem that the refreshing feeling is impaired.

[0006] The present invention has been made in view of such circumstances, and by mounting the termination cabinet so as to cover the protector, it is possible to easily secure the mounting space and to achieve a refreshing feeling. It is an object of the present invention to provide a termination cabinet of an optical fiber cable, which can provide an optical cable.

[0007]

According to the first aspect of the present invention,
What is claimed is: 1. A termination cabinet for an optical cable having a cabinet body and a cover body, wherein the cabinet body has a hole into which a protector is fitted, and a surplus portion of the optical cable core provided to surround the hole. And a take-up unit for taking up.

According to the present invention, when the cabinet body is attached to a predetermined portion, the protector is attached while being fitted into the hole, and the extra length of the optical cable is wound around the winding portion, and then the cover body is attached to the cabinet body. . Thus, the cabinet main body can be attached to the same part as the protector, and the inside of the cabinet main body is closed by the cover body.

According to a second aspect of the present invention, the cabinet body is provided with a terminating means for terminating the optical fiber cable and the optical cable cable drawn into the subscriber's house. .

According to the present invention, after the extra length of the optical cable is wound around the winding portion, the optical cable and the optical cable drawn into the subscriber's house are terminated by the terminating means. By attaching the cover body to the cabinet body, the inside of the cabinet body is closed by the cover body.

According to a third aspect of the present invention, the winding section includes:
The optical cable may be shaped to maintain a minimum radius of curvature.

According to the present invention, since the winding portion has, for example, an elliptical shape and the radius of curvature is set to maintain the minimum radius of curvature of the optical cable, the optical cable does not bend. Thus, the winding operation can be performed in a minimum space.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 and 2 show an embodiment of a termination cabinet (hereinafter simply referred to as a cabinet) of an optical cable according to the present invention.

As shown in these figures, a cabinet 10 made of, for example, resin is provided with a cabinet body 20 and a cover body 30.

Near the upper center of the cabinet body 20, a notch 21 adapted to the outer dimensions of the protector 40 is provided.
Are formed. Then, when the cabinet body 20 is attached to a predetermined portion, the protector 40 is accommodated in the cabinet body 20 in a protruding state from the notch 21.

An elliptical winding portion 22 is provided around the notch 21. Here, the radius of curvature of the winding section 22 is set to maintain the minimum radius of curvature of the optical cable 50. In addition, when the optical cable 50 is wound around the winding section 22, the winding is performed several times, depending on the extra length of the optical cable 50, and the extra length is wound. The winding around the take-up portion 22 not only suppresses the occurrence of warping or the like with respect to the optical cable 50, but also suppresses the occurrence of bending or the like with respect to the optical cable 50.

On the right side of the winding section 22, an auxiliary projection 23 is formed to protrude in accordance with the external dimensions of the winding section 22. Here, substantially the same space is secured between the auxiliary projection 23 and the winding portion 22 and between the outer peripheral projection 24 projecting from the outer peripheral edge of the cabinet body 20 and the winding portion 22. In addition, the optical cable 50 wound around the winding section 22 is protected by the auxiliary projection 23 and the outer peripheral projection 24.

At the lower end of the winding section 22, a cable drawing groove 22a (not shown) connected to the protector 40 is formed.

Further, near the lower end of the outer peripheral projection 24,
A groove 25a for drawing out the optical cable 50 and a groove 2 for drawing a cable (not shown) connected to the protector 40.
4a is formed

A support member 26 having a guide groove 25 is provided side by side in the middle of the cabinet body 20. The guide groove 25 of the support member 26 has the connector 6
When the support plate 71 of the adapter 70 for mounting 0, 61 is inserted, the adapter 70 is held and fixed between the support members 26.

Near the lower end of the cabinet body 20,
A drawing block 82 having a drawing hole 80 for the optical cable core 50 is fixed by a screw 84. A support block 29 provided with a hole 29a for drawing out the optical cable 50 provided at the lower end of the cabinet body 20 is provided with a drawing block 83 having a hole 81 for drawing out the optical cable 50 and a screw 84. Is to be fixed by.

On both sides of the cabinet body 20, pressure contact pieces 27 are provided which are pressed against and held inside the side pieces 31 of the cover body 30, and when the cover body 30 is mounted on the cabinet body 20, The positioning of the cover body 30 with respect to the cabinet body 20 is performed by fitting the positioning block 28 of the cabinet body 20 inside the positioning protrusion 32 of the cover body 30.

The extra length processing of the optical cable 50 in the cabinet 10 having such a configuration is performed as follows.

First, as shown in FIG. 2, the cabinet body 20 before the components are assembled is attached to a predetermined portion. At this time, the cabinet body 20 is attached so that the protector 40 fits into the notch 21 formed near the upper center of the cabinet body 20.

Next, after passing the extra length of the optical cable 50 through the hole 29a for drawing out of the support block 29 and the groove 25a for drawing out the outer peripheral projection 24, the blocks 82 and 83 for drawing out are pulled out of the cabinet body 20. A screw 84 is screwed near the lower end to prevent the optical fiber 50 from coming off.

In this state, the extra length of the optical cable 50 is wound around the winding section 22. At this time, the winding unit 22
Since an appropriate space is secured on both sides of the optical cable 50 by the auxiliary protrusion 23 and the outer peripheral protrusion 24, the extra length of the optical cable 50 is wound into the space so that the extra length is wound into the extra length. The winding process is performed without applying excessive force.

The extra length of the optical cable 50 wound around the winding section 22 is accommodated in a state protected by the auxiliary projection 23 and the outer peripheral projection 24.

Next, the end of the extra length of the optical cable 50 is attached to the connector 60 side. On the other hand, the connector 61
On the side, there is an optical cable core 5 for drawing in to the subscriber's house side.
0 is attached. Then, these connectors 60 and 61 are mounted on the adapter 70 to terminate the optical cable 50.

After the attachment of the connectors 60 and 61 to the adapter 70 is completed, the support plate 71 of the adapter 70 is inserted into the guide groove 25 of the support member 26 arranged side by side in the middle of the cabinet body 20 at one side. . Thereby, the holding and fixing of the adapter 70 are completed.

In this state, the cover 30 is mounted on the cabinet body 20. At this time, by pressing the side pieces 31 of the cover body 30 into the pressure contact pieces 27 provided on both sides of the cabinet main body 20, the pressure contact pieces 27 press against the inside of the side pieces 31 of the cover body 30. At this time, the positioning block 28 of the cabinet body 20 fits inside the positioning protrusion 32 of the cover body 30, thereby positioning the cover body 30 with respect to the cabinet body 20.

As a result, the extra length processing of the optical cable 50 is completed, and the interior of the cabinet body 20 is closed by mounting the cover body 30 on the cabinet body 20, so that the protector 40 is covered and concealed. The inside of the main body 20 is substantially closed, and the protector 40 and the connectors 60 and 61 are held in a stable state without being exposed to the wind and rain.

As described above, in this embodiment, the optical cable 50 is attached to the winding portion 22 having, for example, an elliptical shape.
And the connector 60 as a termination means,
After terminating the optical cable 50 via 61, the cover 30 is attached to the cabinet body 20,
The cabinet main body 20 can be attached to the same site as the protector 40, so that an installation space can be easily secured and a refreshing feeling can be given.

Further, since the inside of the cabinet body 20 is closed by the cover body 30, the inside of the cabinet body 20 is substantially sealed, and the protector 40 and the connector 6 are closed.
0, 61, etc. are kept in a stable state without being exposed to the wind and rain.

Further, the radius of curvature of the winding section 22 is set to maintain the minimum radius of curvature of the optical cable 50, so that the optical cable 50 does not bend or the like, and the radius of curvature in the minimum space is reduced. Winding work becomes possible.

FIGS. 3 and 4 show another embodiment in which the configuration of the cabinet 10 of FIGS. 1 and 2 is changed. In the drawings described below, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and redundant description will be omitted.

As shown in these figures, an elliptical winding portion 90 is provided near the upper center of the cabinet body 20. Here, the radius of curvature of the winding unit 90 is
Similarly to the above, the dimensions are set to maintain the minimum radius of curvature of the optical cable 50. Further, when the optical cable 50 is wound around the winding section 90, the winding is performed several times in the same manner as described above, although it depends on the extra length of the optical cable 50. Rolling part 90
The winding of not only prevents the optical cable core 50 from being twisted, but also suppresses the optical cable core 50 from being bent.

At the upper and lower portions of the winding section 90, crescent-shaped concave portions 91 and 92 are provided. In the lower concave portion 92, cable extraction holes 93 and 94 (not shown) connected to the protector 40 are formed.

An elliptical concave portion 95 is provided at the center of the winding portion 90. At the bottom of the concave portion 95, a cutout portion 21 for fitting the protector 40 is formed.

A termination 96 for terminating the optical cable 50 is provided near one side of the middle of the cabinet body 20.
A connector 97 for connecting the optical fiber cable 0 to the optical fiber cable 50 from the house is attached to the termination 96.

The extra length processing of the optical cable 50 in the cabinet 10 having such a configuration is performed as follows.

First, as shown in FIG. 4, the cabinet body 20 before the components are assembled is attached to a predetermined portion. At this time, in the same manner as described above, the notch 21 formed near the upper center of the cabinet body 20 is provided with the protector 4.
The cabinet main body 20 is attached so that 0 is fitted.

Next, the extra length of the optical cable 50 is inserted into the extraction hole 29a of the support block 29 in the same manner as described above.
After passing through the drawing groove 25a of the outer peripheral projection 24, the drawing blocks 82 and 83 are screwed near the lower end of the cabinet body 20 with screws 84 to prevent the optical cable 50 from coming off.

In this state, the extra length of the optical cable 50 is wound around the winding section 90. At this time, the winding unit 90
Is provided with a space enough to drop the extra length of the optical cable 50, so that the extra length of the optical cable 50 is wound into the space so as to drop the extra length. The winding process is performed without applying excessive force to the winding.

Next, the end of the extra length of the optical fiber 50 from outside and the end of the optical fiber 50 for drawing in to the subscriber's home side are connected via a connector 97 at the termination 96. After that, the connector 97 is attached to the termination portion 96, and the optical cable 50 is terminated.

In this state, the cover 30 is mounted on the cabinet body 20. At this time, similarly, as described above, the side piece 31 of the cover body 30 is pushed into the press contact pieces 27 provided on both sides of the cabinet body 20 so that the press contact piece 27 is inside the side piece 31 of the cover body 30. Press against
At this time, the positioning block 28 of the cabinet body 20 fits inside the positioning projection 32 of the cover body 30, so that the cover 3
Zero positioning is performed.

As a result, the extra length processing of the optical cable 50 is completed, and the interior of the cabinet body 20 is substantially closed as described above by attaching the cover body 30 to the cabinet body 20. The container 40 and the connectors 60 and 61 are held in a stable state without being exposed to the weather.

As described above, in this embodiment, the extra length of the optical cable 50 is wound around the winding section 90, and the optical cable 50 is terminated at the termination section 90 as termination means. After that, the cover body 30 is attached to the cabinet body 20 and the cabinet body 20 is attached to the same site as the protector 40, so that the mounting space can be easily secured and a refreshing feeling can be given as described above. Can be

As described above, since the inside of the cabinet body 20 is closed by the cover body 30 and the inside of the cabinet body 20 is substantially closed, the protector 40
And the connectors 60 and 61 are held in a stable state without being exposed to the weather.

In each of the above embodiments, the case where the winding portions 22 and 90 have an elliptical shape has been described. However, the present invention is not limited to this example, and may have another curved shape such as a circle.

Further, a folded piece extending outward may be formed at the upper end of the winding portions 22 and 90. In this case, the displacement of the optical cable 50 wound around the winding portions 22 and 90 is suppressed. can do.

Further, the present invention is not limited to the above example, and a pin-shaped protrusion may be protruded and disposed in another curved shape such as an elliptical shape or a circle. You may make it provide the hook part bent toward it.

[0052]

As described above, according to the cabinet for terminating an optical cable according to the present invention, when the cabinet body is attached to a predetermined portion, the protector is attached while being fitted into the hole, and the optical cable is attached to the winding section. After winding the extra length, a cover body is attached to the cabinet body, and the cabinet body is attached to the same part as the protector, so that it is easy to secure the mounting space and the cover body By closing the inside of the cabinet body, a refreshing feeling can be given.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a termination cabinet of an optical cable according to the present invention.

FIG. 2 is an exploded perspective view showing the termination cabinet of FIG.

FIG. 3 is a perspective view showing another embodiment in which the configuration of the termination cabinet of FIG. 1 is changed.

FIG. 4 is an exploded perspective view showing the termination cabinet of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cabinet 20 Cabinet main body 21 Notch part 22, 90 Rewinding part 23 Auxiliary projection 24 Outer peripheral projection 25a Extraction groove 25 Guide groove 26 Support member 30 Cover body 40 Protector 50 Optical cable core wire 60, 61 Connector 70 Adapter 82, 83 Drawer block

Claims (3)

[Claims] 1. A termination cabinet of an optical cable core having a cabinet body and a cover body, wherein the cabinet body has a hole into which a protector is fitted, and the optical cable core provided to surround the hole. A termination cabinet for an optical fiber cable, comprising: a winding section for winding a surplus portion of the cable. 2. The optical cable according to claim 1, wherein the cabinet body is provided with a terminating means for terminating the optical cable and the optical cable drawn into the subscriber's house. Termination cabinet of the core wire. 3. The cabinet according to claim 1, wherein the winding portion has a shape that maintains a minimum radius of curvature of the optical cable core.