JP3778021B2 - Optical fiber cord surplus length processing apparatus and optical fiber cable housing apparatus incorporating the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber cord surplus length processing apparatus and an optical fiber cable housing apparatus incorporating the same. The present invention relates to an optical fiber cord surplus length processing device for processing the above and an optical fiber cable housing device incorporating the same.
[0002]
[Prior art]
Usually, an optical fiber cable is drawn into an entrance of an optical fiber cable housing device (hereinafter simply referred to as “device”) and fixed, and then its core wire is connected to the optical fiber cord, and the optical fiber cord is wired in the device. . This connection is made by fusion work, but the length of the optical fiber cord in the apparatus is not constant. In addition, there are generally a large number of optical fiber cable cores, and it is difficult to construct the optical fiber cords connected by fusion work in accordance with the wiring length required in the apparatus. For this reason, an extra length of the optical fiber cord is generated in the apparatus, and an extra length processing unit is provided for processing the extra length.
[0003]
Conventionally, the extra length processing unit has performed extra length processing using a reel or a bobbin. 8 to 10 schematically show a general configuration of a surplus length processing unit when a reel is used as a conventional surplus length process. 8 to 10, 4 is a reel, 11 is an optical fiber cable, 12 is an optical fiber cord, 13 is an optical fiber cable fixing bracket, 14 is an optical module, and 16 is an optical connector. The extra length processing in the case where the fixed optical fiber cable 11 is connected to the optical fiber cord 12 by fusion work and the optical connector 16 connected to the end of the optical fiber cord 12 is connected to the optical module 14 will be described. . It is assumed that the distance between the optical fiber cable 11 and the optical connector 16 is 100 mm and the outer periphery of the reel 4 is 200 mm.
[0004]
FIG. 8 shows a case where the extra length is completely processed. That is, the length of the optical fiber cord 12 required for the extra length processing is 300 mm, the length of the optical fiber cord 12 wound by the reel 4 is 200 mm in one turn, and the optical fiber cable 11 and the optical connector 16 Since the distance between them is 100 mm, the total length is 300 mm, and the extra length of the optical fiber cord 12 is completely processed.
[0005]
On the other hand, in the case of FIG. 9, the length of the optical fiber cord 12 necessary for the extra length processing is 400 mm, and the length of the optical fiber cord 12 wound by the reel 4 is 200 mm for one turn. Since the distance between the optical connector 11 and the optical connector 16 is 100 mm, the optical fiber cord 12 is not subjected to the extra length processing of 100 mm and is left behind.
[0006]
Further, in the case of FIG. 10, the same conditions as in FIG. 9 are used. However, if the number of windings by the reel 4 is 2, the length of the optical fiber cord 12 wound by the reel 4 becomes 400 mm. The optical fiber cord 12 does not reach the optical module 14, and the extra length of the optical fiber cord 12 cannot be processed well.
[0007]
[Problems to be solved by the invention]
However, the surplus length processing part of the optical fiber cord represented by the surplus length processing using a reel or bobbin has occupied a considerable part in the apparatus. The reason is that the minimum bending radius of the optical fiber cord is defined in advance, and if the optical fiber cord is bent with a smaller radius than that, the optical fiber cord itself breaks. Therefore, the extra length processing part is required to have a certain size. It is. Furthermore, in order to improve workability such as fusion work of optical fiber cords and switching of optical connectors, a considerable amount of space is allocated in the extra length processing section, and fixing brackets are used so that the optical fiber cords are not broken. It was fixed.
[0008]
In recent years, as the number of optical channels accommodated by devices has increased, the size of devices has been reduced, and high-density mounting has been promoted, a large number of optical fiber cables have been accommodated. Has occupied most of the equipment. Accordingly, there is a demand for downsizing the surplus length processing unit and improving workability.
[0009]
In addition, since the line (channel) is switched by changing the connection of the optical connector of the optical fiber cord, when the number of lines (number of channels) increases, the number of optical connectors for connection change also increases and the frequency of attachment / detachment increases. Become. However, workability is extremely difficult because a sufficient space for connection change is not secured.
[0010]
Therefore, it is difficult to associate the optical fiber cord connected to the optical module, and the optical fiber cord of the optical channel of the circuit to be relocated cannot be accurately identified in the relocation work. There have been problems such as disconnecting, accidentally pulling the optical fiber cord of the line that should not be relocated, and breaking the optical fiber cord in the worst case.
[0011]
Further, as described above, even when a reel or bobbin is used for the surplus length process, the surplus length cannot be adjusted for the last one turn of the reel. Therefore, even if extra length processing is performed, an optical fiber cord corresponding to the length of one reel at the maximum is generated at the connection portion of the optical connector of the optical module as extra length, and wiring becomes complicated and installation work is further increased. The workability was poor.
[0012]
Therefore, the present invention has been made to solve the problems of the prior art, and the object of the present invention is to reduce the length of the surplus length processing unit, reduce the proportion of the device, and It is an object of the present invention to provide an excellent optical fiber cord surplus length processing apparatus capable of improving workability by completely processing the surplus length of an optical fiber cable and an optical fiber cable housing apparatus incorporating the same.
[0013]
[Means for Solving the Problems]
According to the present invention, there is provided an optical fiber cord surplus length processing apparatus for processing a surplus length of a predetermined length of an optical fiber cord in which one end is fixed and the other end is connected to an optical module,
A reel member that is rotatably supported by a pre-fixed central axis and winds up the extra length of the optical fiber cord on the one end side, a peripheral wall that guides the optical fiber cord on the other end side, and the central axis are inserted. A slide member which is movable with respect to the reel member along the guide groove, and a guide function for fixing the central axis and accommodating the slide member while moving the slide member And a cover member that can be inserted into and withdrawn from the fiber optic cable housing device, and an extra portion of the optical fiber cord on the other end side according to the moving distance of the slide member. An optical fiber cord surplus length processing apparatus characterized by processing the length is obtained.
[0015]
The guide groove is formed in the center of the slide member and is an oval having a long diameter in the moving direction of the slide member, the peripheral wall is disposed at an end of the slide member, and the chord direction is the guide groove It is characterized by being a curved surface opposite to.
[0016]
And a storage recess for storing a surplus length processing portion formed from the cover member, the slide member, and the reel member, and fixing one end side of the optical fiber cord to the storage recess, Guide the optical fiber cord on the other end side, wind up the extra length of the optical fiber cord on the one end side in the reel member, and move the slide member so that the distance between the reel member and the peripheral wall is minimized, The extra length processing part is inserted into the receiving recess, the extra length processing part is fixed to the receiving recess, the optical fiber cord on the other end side is connected to the optical module, and the slide is increased to increase the distance. The extra length of the optical fiber cord on the other end side is processed by moving the member.
[0017]
Further, the peripheral wall has a radius larger than a predetermined allowable radius of curvature of the optical fiber cord.
[0018]
According to the present invention, a plurality of fixed optical fiber cables are converted into optical fiber cords of a predetermined length that are connected to the optical module, and a plurality of optical fibers that respectively process the extra lengths of these optical fiber cords. An optical fiber cable housing device incorporating a fiber cord surplus length processing device, wherein the optical fiber cord surplus length processing device is rotatably supported on a central axis fixed in advance and is optical fiber cord on the side of the optical fiber cable A reel member that winds up the extra length, a peripheral wall that guides the optical fiber cord on the optical module side, and a guide groove in which the central axis is inserted, and moves along the guide groove with respect to the reel member A flexible slide member, a guide function for moving the slide member while holding the slide member while fixing the central axis, and the light And a cover member capable of withdrawal from the insertion and the fiber cable receiving device to Aibakeburu accommodating apparatus in accordance with the movement distance of the slide member, processing the extra length of the optical fiber cord of the optical module side Is obtained.
[0019]
Further, according to the present invention, an optical fiber cable having a plurality of fixed core wires is converted into an optical fiber cord of a predetermined length connected to an optical module for each of the plurality of core wires, and An optical fiber cable housing device incorporating a plurality of optical fiber cord surplus length processing devices for respectively processing surplus lengths, wherein the optical fiber cord surplus length processing device is rotatably supported by a central axis fixed in advance. A reel member that winds up an extra length of the optical fiber cord on the optical fiber cable side, a peripheral wall that guides the optical fiber cord on the optical module side, and a guide groove into which the central axis is inserted; A slide member that is movable with respect to the reel member along with the center axis, and for moving the slide member while accommodating the slide member Has a guide function and includes a cover member capable of withdrawal from the insertion and the fiber cable receiving device to the optical fiber cable housing device, in accordance with the movement distance of the slide member, the optical fiber of the optical module side An optical fiber cable accommodating device characterized in that the extra length of the cord is processed is obtained.
[0020]
The operation of the present invention will be described. When performing extra length processing of a predetermined length of optical fiber cord connected to the optical module, a slide member provided with a peripheral wall for guiding the optical fiber cord and a guide groove, and a central shaft inserted and fixed in the guide groove A surplus length processing device comprising a reel member rotatably supported by a shaft, and a cover member having a center axis of the reel member fixed to receive a slide member and having a guide function for moving the slide member. . The extra length of the fixed optical fiber cord on one end side is wound up by a reel member, the optical fiber cord on the other end side is guided to the peripheral wall, and the slide member is pulled out to a position where the distance between the reel member and the peripheral wall is minimized. Thereafter, the surplus length processing device is fixed to the optical fiber cable housing device. Thereafter, the slide member is pushed in to increase the distance between the reel member and the peripheral wall, whereby the slack of the optical fiber cord on the other end side is pulled by the peripheral wall, and the extra length of the optical fiber cord on the optical module side is processed. As a result, it is possible to completely process the extra length of the optical fiber cord, and the workability is improved by performing the extra length processing outside the optical fiber cable housing apparatus.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an external perspective view in which a part of the surface of an optical fiber cable housing device having a built-in optical fiber cord extra length processing device according to an embodiment of the present invention is cut away. 2 and 3 show a front view and a left side view of the internal state of the optical fiber cable housing device shown in FIG. 1, respectively. 1 to 3, 11a to 11d are optical fiber cables, 13a to 13d are optical fiber cable fixing brackets, and the optical fiber cables 11a to 11d are optical fibers according to the present invention by the optical fiber cable fixing brackets 13a to 13d, respectively. It is fixed to an optical fiber cable housing device (hereinafter simply referred to as “device”) housing 15 incorporating a fiber cord surplus length processing device. Reference numerals 12a to 12d denote optical fiber cords having a predetermined length, which are connected to the optical fiber cables 11a to 11d, respectively.
[0022]
On the other hand, 10a to 10d are optical fiber cord surplus length processing apparatuses (hereinafter, simply referred to as “extra length processing section”) according to the present invention, which are respectively fixedly accommodated in the surplus length processing accommodating section 20. Further, 14a to 14d are optical modules, and 16a to 16d are optical connectors. Here, the optical fiber cables 11a to 11d correspond to the optical modules 14a to 14d, respectively, and after being connected to the optical fiber cords 12a to 12d, the extra length processing units 10a to 10d respectively perform extra length processing. It is the structure connected to the optical modules 14a-14d via the optical connectors 16a-16d.
[0023]
Next, the configuration of the surplus length processing units 10a to 10d will be described with reference to FIG. FIG. 4 is an exploded perspective view for explaining details of the optical fiber cord surplus length processing apparatus in the embodiment of the present invention. In addition, all the surplus length process parts 10a-10d shall have the same structure. In FIG. 4, the surplus length processing unit 10 includes screws 6a and 6b, a cover 1, a slide plate 2, a mechanism piece 3, a reel 4, a washer 5, and a screw 6c.
[0024]
The cover 1 has an opening recess 17 and flanges 18a and 18b. The opening recess 17 has a screw hole 1c for fixing the central axis of the reel 4, and the flanges 18a and 18b are fixed to the extra length processing accommodating portion 20. Screw holes 1a and 1b are provided respectively. The slide plate 2 has a guide slot 8 which is an oval groove at the center, optical fiber cord guides 7a and 7b each having two peripheral walls for guiding the optical fiber cord at the end, and optical fiber cord guides 7a, A handle 9 for moving operation is provided at each end opposite to 7b. The center of the screw hole 1c is provided on the long axis of the guide slot 8, and the optical fiber cord guides 7a and 7b are provided in such a direction that the guide slot 8 side is in the chord direction, and the allowable radius of curvature of the optical fiber cord is provided. It is assumed that it is made of a curved surface that draws an arc having a larger bending radius.
[0025]
The reel 4 has a U-shaped cross section, and its center is attached to the central shaft 3 a of the mechanism piece 3 using a screw 6 c through a washer 5. The slide plate 2 is housed in the opening recess 17 of the cover 1, and the central shaft 3a of the mechanism piece 3 to which the reel 4 is attached is inserted into the guide slot 8 and fixed to the screw hole 1c. The reel 4 is attached in a state where it is rotatably supported by the central shaft 3a, and the slide plate 2 is structured to be movable along the guide slot 8 with respect to the cover 1 having a guide function. That is, the distance between the reel 4 and the optical fiber cord guides 7a and 7b can be changed by moving the slide plate 2 with respect to the cover 1.
[0026]
Next, a procedure for performing the extra length processing of the optical fiber cord using the optical fiber cord extra length processing apparatus in the embodiment of the present invention will be described. 5 and 6 are diagrams for explaining a procedure for attaching the optical fiber cord surplus length processing apparatus in the embodiment of the present invention to the optical fiber cable housing apparatus and performing the surplus length processing of the optical fiber cord. 5 and 6, the same parts as those in FIGS. 1 to 4 are denoted by the same reference numerals. 5 and 6 are views of the device housing 15 as viewed from the left side, and the portion of the extra length processing accommodating portion 20 is shown in a simplified manner.
[0027]
First, in FIG. 5A, the optical fiber cable 11 is fixed at the upper part of the apparatus housing 15, and the core wire of the optical fiber cable 11 is converted into an optical fiber cord 12 and wired in the apparatus housing 15. Then, the optical fiber cord 12 is wound around the reel 4 of the extra length processing unit 10 outside the apparatus housing 15 and rotated in the counterclockwise direction. At this time, the slide plate 2 may be positioned so as not to interfere with the winding of the optical fiber cord 12 around the reel 4.
[0028]
Next, in FIG. 5B, among the optical fiber cords 12 wound around the reel 4, the optical fiber cord 12 on the optical connector 16 side is passed between the optical fiber cord guides 7a and 7b. At this time, the handle 9 is pulled out to move the slide plate 2 to the left, and the distance between the reel 4 and the optical fiber cord guides 7a and 7b is kept close.
[0029]
Then, in FIG. 5C, the surplus length processing unit 10 is inserted into the surplus length processing storage unit 20 of the apparatus housing 15. At this time, the reel 4 is rotated while moving the slide plate 2 leftward, the optical fiber cord 12 on the optical fiber cable 11 side is wound around the reel 4, and the extra length of the optical fiber cord 12 on the optical fiber cable 11 side is processed. I will do it.
[0030]
Next, in FIG. 6A, the handle 9 is pulled out, the slide plate 2 is moved until the central axis 3a of the reel 4 comes to the right end of the guide slot 8, and the reel 4 and the optical fiber cord guides 7a and 7b are moved. In the state where the distance is minimized, the extra length of the optical fiber cord 12 on the optical fiber cable 11 side is completely processed by the reel 4. Thereafter, the screws 6a and 6b are inserted into the screw holes 1a and 1b of the flanges 18a and 18b, respectively, and the surplus length processing unit 10 is fixed to the surplus length processing storage unit 20.
[0031]
In FIG. 6B, the optical connector 16 at the tip of the optical fiber cord 12 is connected to the optical module 14, the handle 9 is pushed in, and the slide plate 2 is moved along the guide slot 8 to the depth of the extra length processing storage unit 20. Move in the direction. At this time, the reel 4 is fixed without rotating while maintaining the state in which the extra length processing of the optical fiber cord 12 on the optical fiber cable 11 side is performed.
[0032]
Finally, in FIG. 6C, the optical fiber cord 12 on the optical connector 16 side is pulled by the optical fiber cord guides 7a and 7b by moving the slide plate 2 in the depth direction of the excess length processing storage unit 20. The extra length of the optical fiber cord 12 on the optical connector 16 side is processed, and the optical fiber cord 12 is set in a state in which the slack is eliminated.
[0033]
Note that when the optical connector 16 is removed from the optical module 14 and the connection is changed, the procedure shown in FIGS. 5A to 6C can be easily performed in reverse. However, the description is omitted here.
[0034]
As described above, by using the surplus length processing unit according to the present invention, it becomes possible to completely process the surplus length of the last one reel of the reel, which has been impossible in the past, The optical fiber cord can be neatly wired outside the apparatus regardless of whether or not there is a work space in the apparatus.
[0035]
1 to 3 show a case where a plurality of optical fiber cables are drawn into and fixed to the apparatus housing. However, since there are generally a large number of optical fiber cable cores, Similarly, when the optical fiber cable is pulled into the apparatus housing and fixed, it is necessary to perform the extra length processing of the optical fiber cord. FIG. 7 shows an external appearance of an optical fiber cable housing device incorporating an optical fiber cord surplus length processing device according to another embodiment of the present invention. This shows a configuration example of the surplus length processing unit in a state where the multi-core optical fiber cable is drawn into the apparatus, and the same parts as those in FIG. 1 are denoted by the same reference numerals.
[0036]
In such a configuration, the multi-core optical fiber cable 11 is fixed on the upper portion of the apparatus housing 15 by the optical fiber cable fixing bracket 13 and connected to the optical fiber cords 12a to 12d for each core wire. Then, the extra length processing units 10a to 10d perform extra length processing, and are connected to the optical modules 14a to 14d via the optical connectors 16a to 16d. Since the extra length processing procedure of the optical fiber cords 12a to 12d in this case is the same as the procedure of FIGS. 5A to 6C described in the above-described embodiment, detailed description thereof is omitted.
[0037]
In the above embodiment, when the optical fiber cord surplus length processing apparatus according to the present invention is applied to an optical fiber cable housing apparatus, it is assumed that the number is four. The number of surplus length processing devices is not limited to this, and the number of optical fiber cord surplus length processing devices can be arbitrarily set as the number of optical channels accommodated by the optical fiber cable accommodating device increases. it is obvious.
[0038]
【The invention's effect】
As described above, according to the present invention, since the extra length of the optical fiber cord remaining after winding with the reel is processed by moving the slide plate that can be operated outside the apparatus, the extra length is reduced. It can be processed completely without leaving. In addition, since the ratio of the extra length processing unit to the device can be reduced, a work space for changing connectors, relocating optical channels, and maintenance can be secured in the device, and workability is improved. Is effective.
[0039]
Furthermore, according to the present invention, in a large apparatus that draws a large number of optical fiber cables, an increase in the number of mounted optical channels can be expected as the ratio occupied by the extra length processing section decreases, and the frequency of optical connector attachment / detachment can be increased. Even if it increases, maintenance and expansion work can be easily performed. In addition, a small apparatus with a small number of optical channels has an effect of further miniaturization.
[Brief description of the drawings]
FIG. 1 is an external perspective view of an optical fiber cable housing device incorporating an optical fiber cord surplus length processing device according to an embodiment of the present invention.
FIG. 2 is a front view of an optical fiber cable housing device incorporating an optical fiber cord surplus length processing device in an embodiment of the present invention.
FIG. 3 is a left side view of an optical fiber cable housing device incorporating an optical fiber cord surplus length processing device in an embodiment of the present invention.
FIG. 4 is an exploded perspective view of the optical fiber cord surplus length processing apparatus in the embodiment of the present invention.
FIG. 5 is a diagram for explaining a procedure for attaching the optical fiber cord surplus length processing apparatus in the embodiment of the present invention to the optical fiber cable housing apparatus;
FIG. 6 is a diagram illustrating a procedure for attaching the optical fiber cord surplus length processing apparatus to the optical fiber cable housing apparatus in the embodiment of the present invention.
FIG. 7 is an external perspective view of an optical fiber cable housing device incorporating an optical fiber cord surplus length processing device according to another embodiment of the present invention.
FIG. 8 is a diagram schematically illustrating a state in which a surplus length is completely processed when a reel is used in a conventional surplus length processing unit.
FIG. 9 is a diagram schematically showing a state where a surplus length is not processed well when a reel is used in a conventional surplus length processing unit.
FIG. 10 is a diagram schematically illustrating a state in which a surplus length is not processed well when a reel is used in a conventional surplus length processing unit.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cover 1a, 1b, 1c Screw hole 2 Slide plate 3 Mechanism piece 3a Center shaft 4 Reel 5 Washer 6a, 6b, 6c Screw 7a, 7b Optical fiber cord guide 8 Guide slot 9 Handle 10, 10a, 10b, 10c, 10d Light Fiber cord extra length processing devices 11, 11a, 11b, 11c, 11d Optical fiber cables 12a, 12b, 12c, 12d Optical fiber cords 13, 13a, 13b, 13c, 13d Optical fiber cable fixing brackets 14, 14a, 14b, 14c , 14d Optical module 15 Optical fiber cable housing case 16a, 16b, 16c, 16d with built-in optical fiber cable surplus length processing device Optical connector 17 Opening recess 18a, 18b 鍔 20 Surplus length processing housing

Claims (7)

An optical fiber cord surplus length processing apparatus for processing a surplus length of a predetermined length of optical fiber cord having one end fixed and the other end connected to an optical module,
A reel member that is rotatably supported by a pre-fixed central axis and winds up the extra length of the optical fiber cord on the one end side;
A slide member which has a peripheral wall for guiding the optical fiber cord on the other end side and a guide groove into which the central axis is inserted, and is movable with respect to the reel member along the guide groove;
A cover member that fixes the central shaft and accommodates the slide member, has a guide function for moving the slide member, and can be inserted into the fiber optic cable housing device and pulled out from the fiber cable housing device Including
An optical fiber cord surplus length processing apparatus that processes the surplus length of the optical fiber cord on the other end side in accordance with the moving distance of the slide member. The guide groove is formed in a central portion of the slide member and is an oval having a long diameter in the moving direction of the slide member, the peripheral wall is disposed at an end of the slide member, and a chord direction faces the guide groove. 2. The optical fiber cord surplus length processing apparatus according to claim 1 , wherein the apparatus is a curved surface. A storage recess for storing an excess length processing portion formed from the cover member, the slide member, and the reel member;
The one end side of the optical fiber cord is fixed to the housing recess, the optical fiber cord on the other end side is guided to the peripheral wall, the extra length of the optical fiber cord on the one end side is wound on the reel member, and the reel The slide member is moved so that the distance between the member and the peripheral wall is minimized, the surplus length processing portion is inserted into the storage recess, the surplus length processing portion is fixed to the storage recess, and the other end side connect the optical fiber cord in the optical module, light according to claim 1 or 2, wherein the moving the slide member to allowed to increase the distance to handle extra length of the optical fiber cord of the other end Fiber cord surplus length processing equipment. The peripheral wall, the optical fiber cord excess length processing apparatus according to any one of claims 1, wherein 3 to have large becomes a radius greater than a predetermined allowable radius of curvature of the optical fiber cord. A plurality of fixed optical fiber cables are converted into optical fiber cords of a predetermined length to be connected to the optical module, and a plurality of optical fiber cord surplus length processing devices for processing the surplus lengths of these optical fiber cords are incorporated. An optical fiber cable housing device,
The optical fiber cord surplus length processing device is:
A reel member that is rotatably supported by a pre-fixed central axis and winds up the extra length of the optical fiber cord on the optical fiber cable side;
A slide member which has a peripheral wall for guiding the optical fiber cord on the optical module side and a guide groove into which the central axis is inserted, and is movable with respect to the reel member along the guide groove;
A cover that fixes the central axis and accommodates the slide member, has a guide function for moving the slide member, and can be inserted into the optical fiber cable accommodation device and pulled out from the fiber cable accommodation device Including members,
The extra length of the optical fiber cord on the optical module side is processed according to the moving distance of the slide member. An optical fiber cable having a plurality of fixed core wires is converted into an optical fiber cord of a predetermined length connected to the optical module for each of the plurality of core wires, and a plurality of optical fiber cords each processing the extra length of the optical fiber cord. An optical fiber cable housing device incorporating an optical fiber cord extra length processing device,
The optical fiber cord surplus length processing device is:
A reel member that is rotatably supported by a pre-fixed central axis and winds up the extra length of the optical fiber cord on the optical fiber cable side;
A slide member which has a peripheral wall for guiding the optical fiber cord on the optical module side and a guide groove into which the central axis is inserted, and is movable with respect to the reel member along the guide groove;
A cover that fixes the central axis and accommodates the slide member, has a guide function for moving the slide member, and can be inserted into the optical fiber cable accommodation device and pulled out from the fiber cable accommodation device Including members,
The extra length of the optical fiber cord on the optical module side is processed according to the moving distance of the slide member. The optical fiber cable housing device according to claim 5 or 6 , wherein the peripheral wall has a radius larger than a predetermined allowable radius of curvature of the optical fiber cord.

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