JPH087658Y2 - Optical fiber cable surplus length handling structure for optical communication equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an optical fiber cable surplus length processing structure for an optical communication device.

[Conventional technology]

FIG. 4 is a side view showing an example of an optical fiber cable surplus length processing structure of a conventional optical communication device.

Since the optical fiber surplus length processing bracket 10 is fixed inside the device housing 13 by the nylon rivets 9, the cable surplus length processing work such as winding the optical fiber cable 12 around the cable holder 11 is performed inside the device housing 13. Had to do.

[Problems to be solved by the device]

In the conventional optical fiber cable surplus length processing structure of the optical communication device described above, since the cable housing is completely fixed inside the device housing, the optical fiber cable surplus length processing work must be performed inside the device housing. The workability is poor, and in order to process the extra length, a space for inserting a hand must be provided inside the housing, which is disadvantageous for downsizing the housing of the device.

In addition, some of the housings for performing only the extra length treatment of the optical fiber cable have tried to solve the above problems by rotating or laterally moving the cable housing, but in these cases, Since the cable length up to the cable housing portion changes before and after the movement, there is a drawback that a complete extra length treatment cannot be performed.

[Means for solving the problem]

A plurality of cable holders for holding a circularly wound optical fiber cable according to the present invention, and a cable holder attached to the housing in a rotatable structure with a fulcrum near a path into which the cable holder is introduced. A bracket and a lock mechanism for fixing the bracket to the housing in a state where the bracket is housed in the housing.

〔Example〕

Next, the present invention will be described with reference to the drawings. 1 and 2 are a side view and a front view of an embodiment of the present invention, and FIG. 3 is a diagram showing a process from the optical fiber extra length processing to the fixing to an apparatus housing of this embodiment.

In FIG. 1, a plurality of cable holders 1 for holding the optical fiber cable 2, a bracket 4 for accommodating the optical fiber cable 2 to which the cable holder 1 and one fixing mechanism 7 are attached, and one fixing mechanism 7 are engaged. Bracket 4
It comprises a housing 8 provided with the other fixing mechanism 6 for mounting, and a mechanism for rotating the bracket 4 by providing a fulcrum of the housing 8 on a path into which the extra-length optical fiber cable 2 is introduced.

With this configuration, when the extra length of the optical fiber cable 2 is processed inside the device housing 8, the lock mechanisms 6 and 7 that fix the device housing 8 and the bracket 4 to the device housing 8 are released, and the bracket 4 is released. After being pulled out of the device housing 8 by using the lock mechanism 7 attached to the device and also serving as a handle, the optical fiber cable 2 is guided through the cable clamp 3 and wound around the cable holder 1. Perform extra length processing. Next, the bracket 4
As shown in A → B → C in the figure, the device is rotated and fixed in the state of C to the device housing 8 by the lock mechanisms 6 and 7, and the optical fiber cable 2 that has been subjected to the extra length is led out through the cable clamp 3a, It is connected to an optical connector (not shown in the figure) provided inside the housing 8.

[Effect of device]

As described above, according to the present invention, the optical fiber extra length processing can be performed outside the housing by rotating and moving the optical fiber extra length processing unit, and the work efficiency can be improved. In addition, the space of the optical fiber surplus length processing structure inside the housing can be minimized, which is advantageous for downsizing of the device housing. In addition, by providing a fulcrum of rotation movement near the cable introduction path, the length of the optical fiber cable on the introduction side up to the excess length processing section becomes the same in the state of A and C in FIG. Can be done.

[Brief description of drawings]

1 and 2 are a side view and a front view of an embodiment of the present invention, FIG. 3 is a diagram showing a process from the optical fiber extra length processing to the fixing to an apparatus housing, and FIG. FIG. 11 is a side view showing an example of an optical fiber cable surplus length processing mechanism of a conventional optical communication device. 1 ... Cable holder, 2 ... Optical fiber cable, 3,
3a ... Cable clamp, 4 ... Bracket, 5 ... fulcrum, 6 ... Lock mechanism (fixed side), 7 ... Lock mechanism (moving side), 8 ... Device housing.

Continuation of the front page (72) Norio Saito, No. 2 Raijin, Yoshioka, Yamato-cho, Kurokawa-gun, Miyagi Prefecture, Miyagi NEC Corporation (56) References JP-A-63-19898 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A plurality of cable holders for holding an optical fiber cable wound in a circle, and a housing having a rotatable structure with a fulcrum near a path to which the cable holder is attached and into which the optical fiber cable is introduced. An optical fiber cable surplus length processing structure for an optical communication device, comprising: a bracket to be attached; and a lock mechanism for fixing the bracket to the housing while the bracket is housed in the housing.