JP2582376Y2 - Optical fiber cable extra length processing structure for optical communication equipment - 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 fiber cable extra length processing structure for an optical communication device.

[0002]

2. Description of the Related Art Conventionally, in an optical communication device using an optical fiber cable, an extra length of the optical fiber cable has been housed in a side portion of a device housing so as to be rounded and bundled. This will be described with reference to FIG.

FIG. 4 is a front view showing a structure for processing an extra length of an optical fiber cable of a conventional optical communication apparatus. In the figure,
1 is a device housing of the optical communication device, and 2 is an optical fiber cable. Reference numeral 3 denotes a surplus processing bracket for holding the surplus portion 2a of the optical fiber cable 2. The surplus processing bracket 3 has a structure in which the optical fiber cable 2 is wound around a cable holder 4 and held. It is fixed to a side surface of the device housing 1 by a nylon rivet 5.

In the conventional extra-length processing structure configured as described above, the extra-length portion 2a of the optical fiber cable 2 is wound around the cable holder 4 of the extra-length processing bracket 3 to perform the extra length processing operation. .

[0005]

However, in the above-described conventional optical fiber cable extra length processing structure, since the optical fiber cable 2 is wound around the cable holder 4 of the extra length processing bracket, the extra length is required. The throughput was limited. In order to increase the amount of extra processing, a large extra processing bracket must be used, resulting in an increase in the size of the apparatus. In addition, the optical fiber cable 2 has to be wound a plurality of times in the apparatus housing 1 and the workability is low.

[0006]

According to the present invention, an optical fiber cable extra length processing structure for an optical communication device is provided in an optical communication device.
A plurality of optical communication devices are arranged side by side in the downward direction,
The optical fiber cable that protrudes from the optical communication equipment.
The small-diameter part to be in contact with, and the
Cable holding member consisting of a flange
The optical fiber cable in the cable holding member is attached to the cable holding member by hanging the terminal side of the optical fiber cable on the cable holding member and hanging an extra length thereof on the side of the optical communication device. The upper surface of the small diameter portion is an arc surface formed with a radius of curvature allowed when bending the optical fiber cable.

[0007]

[Action] extra length portion of the optical fiber cable of optical communication devices
Since it is hung up and down on the side, it is not necessary to wind the extra length part in multiple layers, and the extra length processing is performed with a length corresponding to the height of the optical communication devices arranged side by side . Also, each
These optical communication devices are provided with dedicated cable holding members
From other optical communication devices during maintenance, etc.
It is not confused with a bar cable. Moreover, the optical fiber
Connect the extra length of the bar cable to the lower cable holding
Hold by passing between the flange and the optical communication device
Can be

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1 is a front view of an optical communication device employing an optical fiber cable extra length processing structure according to the present invention. 2A and 2B are side views of an optical communication device employing the optical fiber cable extra length processing structure according to the present invention. FIG. 2A shows a case where the extra length is long, and FIG. Indicates a short case. 3A and 3B are views showing a cable holding member used in the optical fiber cable extra length processing structure according to the present invention, wherein FIG. 3A is a front view and FIG. 3B is a side view. In these figures, reference numeral 11 denotes an optical communication device, and reference numeral 12 denotes a device housing for housing the optical communication device 11. The optical communication device 11
Are installed vertically in the apparatus housing 12.

The device housing 12 is provided with a cable introduction space 13 beside the optical communication device installation portion. The cable introduction space 13 is provided on the side plate 12 a of the device housing 12.
Is provided so as to vertically penetrate the inside of the device housing 12 along the line.

Reference numeral 14 denotes an optical fiber cable. The optical fiber cable 14 is introduced into the cable introduction space 13 from above, and the extra length portion 14a is rounded down in the cable introduction space 13 to form an optical communication device. The connection side end is hung on the cable holding member 15. The front end of the optical fiber cable 14 on the optical communication device side is connected to the optical communication device 11 on the front side of the device housing 11 via an optical connector (not shown).

The cable holding member 15 is provided for each of the above optical communication devices.
11 at the same position on the side and cable entry space 1
3, a plurality of them are mounted at intervals in the vertical direction. This cable holding member 15 is shown in FIG.
As shown in FIGS. 1A and 1B, the semi-cylindrical small-diameter portion 16 fixed to the apparatus housing 12 and a flange 17 integrally provided on the protruding end side of the small-diameter portion 16 are provided. ing.

The small-diameter portion 16 is attached to the apparatus housing 12 with the arc surface 16a facing upward, and the flange 17 is formed in a semicircular shape when viewed from the front and radially outward from the small-diameter portion 16. It has a large diameter so as to protrude.
Further, the arc surface 16a serving as the upper surface of the small diameter portion 16 is formed with a minimum radius of curvature allowed when the optical fiber cable 14 is bent.

That is, the optical fiber cable 14 is hung on the cable holding member 15 in a state of being in contact with the arcuate surface 16 a of the small diameter portion 16, and is prevented from falling off from the small diameter portion 16 by the flange 17. Will be blocked.

In order to carry out the extra length processing by the optical fiber cable extra length processing structure according to the present invention, the optical fiber cable 14 is first introduced into the cable introduction space 13 from above, and the optical communication is performed. The device side end is hung on the cable holding member 15. At this time, the cable holding member 15 is selected near the optical communication device 11 to be connected.

When the optical fiber cable 14 is hung on the cable holding member 15, the extra length portion 14a is dropped into the cable introduction space 13 so that the optical fiber cable 14 draws a loop as shown in FIG. The lowermost portion of the extra length portion 14a is turned back in the cable introduction space 13. At this time, when the extra length portion 14a is short, the loop of the optical fiber cable 14 formed in the cable introduction space 13 becomes small as shown in FIG. Even when the optical fiber cable 14 is attached to the small diameter portion 16 of the cable holding member 15 as described above, the optical fiber cable 14 is not forcibly bent and the performance is deteriorated at the attached portion. There is nothing to do.

In addition to the optical fiber cable 14 being introduced into the cable introduction space 13 from above, the optical fiber cable 14 can be guided into the cable introduction space 13 from below.

Accordingly, since the extra length portion 14a of the optical fiber cable 14 is vertically suspended on the side of the optical communication device 11 , the work of winding the extra length portion 14a in multiple layers becomes unnecessary, and the extra length portions 14a are juxtaposed. The extra length processing can be performed with a length corresponding to the height of the optical communication device 11 . Ma
In addition, a cable holding unit dedicated to each optical communication device 11
Since the material 15 is provided, other light
Confused with the optical fiber cable 14 of the communication device 11
And not. Moreover, the extra length of the optical fiber cable 14
The part 14 a is connected to the flange 1 of the lower cable holding member 15.
7 by passing between the optical communication device 11 and
be able to.

[0018]

As described above, the optical fiber cable extra length processing structure of the optical communication device according to the present invention is as described above.
Are arranged in the vertical direction, and the same
Optical fiber cable protruding from the optical communication device
The diameter of the small diameter part to be abutted and the tip of the small diameter part on the empty side
Cable holding member consisting of a flange
The cable holding member is formed by hanging the terminal side of the optical fiber cable on the cable holding member, and an excess length thereof is hung down on the side of the optical communication device. The small diameter portion of the cable holding member to which the optical fiber cable is attached is attached. Since the upper surface is an arc surface formed with a radius of curvature allowed when the optical fiber cable is bent, the extra length of the optical fiber cable hangs up and down on the side of the optical communication device. work is not required to over and over again wound, optical communication instrumentation
Extra length processing is performed with a length corresponding to the height of the position . Therefore, even when a plurality of optical fiber cables having different surplus lengths are connected, the surplus length processing operation can be efficiently performed, and the surplus length processing portion occupies the device housing accommodating the optical communication device. The space can be minimized, which is advantageous for miniaturization of the device. In addition, it is juxtaposed
Since the extra length processing can be performed with a length corresponding to the height of the optical communication device , the extra length processing amount can be increased. In addition
Each optical communication device has a dedicated cable holding member
Because it is provided, other optical communication devices during maintenance etc.
Not to be confused with fiber optic cable. Only
The extra length of fiber optic cable to the lower cable
Between the optical communication device and the flange of the
Therefore, it can be held.

[Brief description of the drawings]

FIG. 1 is a front view of an optical communication device employing an optical fiber cable extra length processing structure according to the present invention.

FIGS. 2A and 2B are side views of the optical communication device employing the optical fiber cable extra length processing structure according to the present invention, wherein FIG. 2A shows a case where the extra length is long, and FIG. Indicates a short case.

FIGS. 3A and 3B are diagrams showing a cable holding member used in the optical fiber cable extra length processing structure according to the present invention, wherein FIG. 3A is a front view and FIG. 3B is a side view.

FIG. 4 is a front view showing an optical fiber cable extra length processing structure of a conventional optical communication device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Optical communication apparatus 12 Device housing 13 Cable introduction space 14 Optical fiber cable 14a Extra length 15 Cable holding member 16 Small diameter part 16a Arc surface 17 Flange

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-72204 (JP, A) JP-A-60-11306 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G02B 6/00 336

Claims (1)

(57) [Scope of request for utility model registration] A plurality of optical communication devices arranged in a vertical direction;
At the same position of each optical communication device, project from the optical communication device.
And the small diameter part to which the optical fiber cable is attached
Flanges that protrude radially from the tip of the protruding side of the diameter part
Each of the gable holding members is provided, and the terminal side of the optical fiber cable is hung on the cable holding member, and the extra length thereof is hung on the side of the optical communication device, and the optical fiber cable in the cable holding member is An optical fiber cable extra length processing structure for an optical communication device, wherein the upper surface of the small diameter portion to be attached is an arc surface formed with a radius of curvature allowed when the optical fiber cable is bent.