JPH11119060A - Optical wiring storing box for optical switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical wiring storing box for an optical switch which can easily connect a tape fiber extended from the optical switch to an external wiring. SOLUTION: The optical wiring storing box 1 stores the excess length of plural tape fibers 8 extended from the optical switch 3 in a housing 2 and exposes the connectors 52 of respective fibers 8 from fiber exists 61 of the housing 2 and the fibers 8 are wired around the surfaces of plate-like excess length storing trays 4, 5 fixed in the housing 2 in a vertically set state of the fibers 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical switch receiving box for an optical switch which is used to store a large number of tape fibers extending from an optical switch.

[0002]

2. Description of the Related Art As an example of a conventional optical switch,
It is disclosed in JP-A-7-72398. The optical switch includes a plurality of first optical fibers fixed to the V-groove of the optical fiber alignment member, a second optical fiber fixed to the movable head, and a movable optical head that moves in the alignment direction of the first optical fiber. And a drive mechanism for moving the tip of the two optical fibers toward the optical fiber alignment member, and the drive mechanism selectively optically couples the desired first optical fiber and second optical fiber. . Also, by bundling the four first optical fibers, a four-core tape fiber is formed, and the first optical fibers are arranged in the optical fiber alignment member in a state of the tape fiber. Furthermore,
The optical switch has a case for preventing dust and the like from entering from outside to affect optical coupling, and the first and second optical fibers and the driving mechanism are sealed in a sealed case. In addition, taking into consideration the workability of connection with external wiring, each of the first
By exposing the optical fiber from the case and providing a connector at the end of each first optical fiber, connection between the external wiring and the first optical fiber is facilitated.

[0003]

However, the first optical fiber fixed to the optical fiber alignment member is simply pulled out of the sealed case of the optical switch, and has a relatively margin in consideration of the workability of connection with the external wiring. Have been withdrawn. Since such a first optical fiber only hangs down from the case, the first optical fibers (tape fibers) are entangled with each other outside the case and are searched for a desired connector when connecting an external wiring to an arbitrary connector. But it took time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and in particular, to provide an optical switch housing box for an optical switch which facilitates connection between a tape fiber extending from an optical switch and external wiring. With the goal.

[0005]

According to a first aspect of the present invention, there is provided an optical switch housing box for an optical switch, wherein a plurality of tape fibers extending from the optical switch are accommodated in a housing for an extra length, and a fiber outlet of the housing is provided. An optical wiring storage box exposing the connector of each tape fiber from
The tape fiber is crawled up vertically on the surface of a plate-shaped extra-length storage tray fixed inside the housing.

In the optical switch housing box for optical switches, the tape fiber extending from the optical switch is crawled around on the extra length storage tray with a margin. Therefore,
When an operator grips any connector exposed from the fiber outlet of the housing and pulls out this connector, the tape fiber is securely pulled out of the housing by an arbitrary length, and the tape fiber is connected to the connector of the external wiring. Connection becomes easy. Further, after the connection operation between the connectors is completed, the connectors can be returned to their original positions by pushing the connectors back toward the housing. Further, if the tape fibers are laid vertically on the surface of the extra length storage tray, the density of the tape fibers on the extra length storage tray can be increased, and a large number of tape fibers can be accommodated in the housing. Becomes possible. Moreover, by placing the tape fiber vertically, the contact area of the tape fiber with the surface of the extra length storage tray is reduced, and the wear of the tape fiber that occurs when the tape fiber is pulled out is reduced, and the tape fiber is added. Contributes to reduction of lateral pressure.

In this case, it is preferable that the tape fibers on the extra-length storage tray be crawled in a waveform. When such a configuration is adopted, the extra length of the tape fiber on the extra length storage tray can be extremely increased while securing the bending radius (for example, 30 mm) of the tape fiber which is a problem in quality control of the tape fiber. . Further, the crawling operation utilizing the elastic direction of the tape fiber can be performed.

It is preferable that the tape fiber be twisted by approximately 90 degrees near the fiber outlet. When such a configuration is employed, the distal end portion of the tape fiber that exits from the housing can be placed in a horizontal state, so that the connector can be appropriately prevented from being laterally blurred.

In this case, a moving block that moves on the extra-length storage tray is arranged at the fiber discharge side end of the extra-length storage tray near the fiber outlet, and is twisted by approximately 90 degrees behind the movable block to be laterally moved. It is preferable that the moving block is fixed in the vicinity of the tip of the placed tape fiber.
When such a configuration is adopted, the tape fiber can be changed from a vertical state to a horizontal state before and after the moving block, and this state is maintained on the extra length storage tray by using the moving block. Can be.

[0010] It is preferable that a plurality of fiber alignment pins are erected on the extra length storage tray at positions where the tape fibers are crawled. When such a configuration is adopted,
By utilizing the elastic direction of the tape fiber, the alignment state of the tape fiber on the extra length storage tray is maintained along the fiber alignment pins, facilitating the securing of the extra length path, and allowing the desired length on the extra length accommodation tray. A waveform having a bending radius can be easily created.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a preferred embodiment of an optical wiring receiving box for an optical switch according to the present invention.

FIG. 1 is a perspective view showing an appearance of an optical wiring storage box for an optical switch according to the present embodiment, and FIG.
It is a perspective view which shows the internal structure of an optical wiring accommodation box. The optical wiring housing box 1 shown in these drawings has a housing 2, and an optical switch 3 is arranged at the lowermost portion of the internal space of the housing 2. Above the optical switch 3, two extra-length storage trays 4 and 5 are arranged in a stacked state, and the housing 2 has a flat lid 6 for storing these members 3 to 5.

This optical switch 3 is, as shown in FIG.
It has a rectangular parallelepiped housing 7 and a plurality of (for example, 1
00 tape fibers 8 are exposed. Each of the tape fibers 8 is formed as a four-core tape fiber 8 by bundling the four first optical fibers 9, so that a plurality of the first optical fibers 9 are bundled from the housing 7. Books (for example, 400) are discharged. In addition, the first optical fiber 9 that has been stripped from the tip of each tape fiber 8 is juxtaposed with a two-part optical fiber alignment member 10 housed in a sealed case 11. Then, 200 first optical fibers 9 are bonded and fixed to the first optical fiber alignment member 10a on the left side, and 200 first optical fibers 9 are bonded and fixed to the second optical fiber alignment member 10b on the right side. Have been.

A head base 12 that moves in the direction in which the optical fiber alignment member 10 extends is disposed in the sealed case 11, and a movable arm 14 is fixed to the head base 12. Further, a two-core master-side optical fiber (second optical fiber) 13 is fixed to the tip of the movable arm 14. By operating the movable arm 14, the tip of the master-side optical fiber 13 is aligned with the optical fiber. It will come into contact with the member 10.

[0015] As shown in FIG.
A predetermined number of V-grooves 15 are formed on the surface of No. 0 so as to extend linearly in the optical fiber coupling direction. One side of each V-groove 15 is used as a first optical fiber fixing groove 15a for fixing the 400 optical first optical fibers 9 with an adhesive, and the other side of each V-groove 15 is fixed to the movable arm 14. It is used as the second optical fiber introduction groove 15b for introducing the master optical fiber 13 that has been set. By reducing the pitch of the V-grooves 15, 400 first optical fibers 9 can be arranged in the X direction on the optical fiber arrangement member 10.

Also, as shown in FIG.
A plurality (100) of the tape fibers 8 composed of the optical fibers 9 are led out of the sealed case 11 through the through-holes 11 a provided in the sealed case 11, and the housing 7.
Are led out to the outside through the tape fiber pull-out part 16 provided in the. Further, the master-side optical fiber 13 is led out of the sealed case 11 through a through-hole 11 b provided in the sealed case 11, and is led out through a master-side optical fiber lead-out part 17 provided in the housing 7. . Note that the through holes 11a and 11b are
After the optical fiber 9 and the master-side optical fiber 13 are inserted, they are sealed in a liquid-tight state or sealed with an adhesive.

Further, a coupling position selecting mechanism 21 for driving the head base 12 in the arrangement direction (X direction) of the first optical fibers 9 is provided in the housing 7. The coupling position selecting mechanism 21 includes a screw shaft 22 extending in the arrangement direction (X direction) in the sealed case 11 that houses the head base 12 and the optical fiber arrangement member 10, and a head base 12.
A female screw portion 23 provided on the screw shaft 22 and screwed to the screw shaft 22;
It includes a motor 24 with an encoder 24 a as a drive source for driving the screw shaft 22, and a bearing 25 fixed to the sealed case 11 to support the screw shaft 22. By placing the motor 24 outside the sealed case 11, the motor 24 is not affected by the antireflection agent (for example, silicon oil) sealed in the sealed case 11 and needs to be oil-sealed to the motor 24. Disappears. Reference numeral 26 denotes a control unit that controls the rotation of the motor 24. Guide means (not shown) for guiding the head base 12 in the X direction is provided in the sealed case 11.
Is provided.

Next, the movable arm 14 and the movable arm drive mechanism 31 will be described. As shown in FIGS. 4 to 6, the movable arm 14 includes a plate-shaped first movable arm 32 located above and having a spring property, and a second movable arm 33 located below and having a spring property. It is configured. The base end of the first movable arm 32 is
The base of the second movable arm 33 is fixed to the lower step surface 34b of the mounting table 34 with screws or the like.

At the center of the second movable arm 33, a spring portion 33a made of a single spring plate is provided. This spring portion 33a urges the second movable arm 33 downward in a steady state and , The master side optical fiber 13 is V
In order to correct the displacement when introduced into the groove 15, a lateral displacement is made possible. Further, the second movable arm 3
A movable head 33b in the form of a block is fixed to the distal end of the optical fiber 3 and the master-side optical fiber 13 having two cores is obliquely downwardly disposed on the lower surface of the movable head 33b (the optical fiber array member 10).
15). The first movable arm 32 is also formed of a spring plate and is urged downward in a steady state.

A movable arm drive mechanism 31 is provided adjacent to the side of the movable arm 14 described above. The movable arm drive mechanism 31 includes an electromagnetic solenoid 35 fixed to a mounting base 34, an L-shaped swing part 36 that swings by pressing the plunger 35 a of the solenoid 35, and a mounting base that is located above the plunger 35 a 34, a support shaft 37 extending in the X direction and rotatably supporting the swing portion 36, and a free end of the swing portion 36 being rearward (in the direction of arrow E).
And a winding spring 38, which extends between the mounting base 34 and the swing part 36, extends in the X direction from the upper part of the inner surface of the swing part 36, and has a first movable arm 32 and a second movable arm 33. And the first movable arm 32
And a second operating arm 3 extending from the lower portion of the inner surface of the swing portion 36 in the X direction.
3 and a second operating bar 40 that is arranged below the third movable bar 33 and lifts the second movable arm 33.

Therefore, as shown in FIG.
4 is in a steady state (the so-called V-contact state in which the master-side optical fiber 13 is introduced into the V-groove 15 of the optical fiber array member 10), the plunger 35a is retracted, and the swing portion 36
Is rotated in the direction of arrow E by the urging force of the winding spring 38 to engage the first movable arm 32
The engagement between the movable arm 33 and the second operation bar 40 is released. As a result, the distal end of the second movable arm 33 is pressed by the distal end of the first movable arm 32, so that the master-side optical fiber 13 comes into V-contact with the optical fiber array member 10.

When the movable arm 14 is moved in the arrangement direction (X direction) of the first optical fibers 9 in order to switch the optical connection, the V-contact state of the master-side optical fiber 13 is changed as shown in FIG. Plunger 35
a is moved forward, and the plunger 35a
While pressing, the swing part 36 is rotated in the direction of arrow F about the support shaft 37. As a result, the first movable arm 32 is pushed up by the first operation bar 39, and the second
While pushing up the movable arm 33, the V-contact state of the master-side optical fiber 13 is released.

As shown in FIG. 4, the movable arm drive mechanism 31 is provided with a sensor section 41 for detecting the displacement of the movable arm 14. The sensor section 41 includes an optical sensor 42 fixed to a lower surface 34b of the mounting base 34,
The optical sensor 42 fixed to the tip of the first operation bar 39
And a light-shielding plate 43 which enters and exits the light-shielding plate. Therefore, when the light shielding plate 43 shields the optical sensor 42 by the swing of the swing portion 36, as shown in FIG. 6, the second movable arm 33 descends, and the master-side optical fiber 13 becomes an optical fiber array member. It is determined that the V-groove 15 is in V-contact. When the light shielding of the optical sensor 42 is released, as shown in FIG. 6, the second movable arm 33 is raised, and the master-side optical fiber 13 is connected to the optical fiber array member 1.
It is determined that the V-shaped groove 15 is not in V-contact.

The optical switch 3 configured as described above is disposed in the housing 2 as shown in FIG.
A large number (100) of the tape fibers 8 discharged from the optical switch 3 are distributed to the lower excess storage tray 4 and the upper excess storage tray 5 by 50. In this case, 50 tape fibers 8 fixed to the first optical fiber alignment member 10a are introduced into the lower extra length storage tray 4, and the second optical fiber is inserted into the upper extra length storage tray 5. The fifty tape fibers 8 fixed to the fiber alignment member 10b are introduced. And each extra length storage tray 4,5
Are fixed to the inner wall surface of the housing 2 by appropriate screw fastening so as to be laminated at a predetermined interval.

As shown in FIGS. 8 and 9, a block-shaped fiber fixing member 50 made of silicone rubber is provided at the fiber introduction side end 4a on the upper surface of the lower excess storage tray 4. A plurality are arranged. The fiber fixing members 50 are arranged in a line at the same pitch while being fixed on the upper surface of the extra length storage tray 4 with an adhesive. In addition, a gap is provided between the fiber fixing members 50 such that about two to four tape fibers 8 can be sandwiched in an upright state. Further, each fiber fixing member 50 is fixed in such a manner as to pierce a positioning pin 51 protruding from the upper surface of the extra length storage tray 4.

More specifically, a cylindrical pin insertion hole 50a is formed in the center of the fiber fixing member 50, and the positioning pin 51 is fitted into the pin insertion hole 50a, thereby displacing the position of the fiber fixing member 50. Preventing. Therefore, even if the bonding surface of the fiber fixing member 50 is peeled off for some reason, the fiber fixing member 50 is not displaced by the positioning pin 51, and is held at the fiber introduction side end 4a of the extra length storage tray 4. The plurality of fiber fixing members 50 are always kept in a line. In addition, by adopting silicon rubber for the fiber fixing member 50, the tape fiber 8 can be easily inserted between the fiber fixing members 50, and the workability of assembling the tape fiber 8 is improved.

As shown in FIGS. 8 and 10, a connector 52 is provided at the tip of each tape fiber 8 crawled in a waveform on the extra length storage tray 4, and each connector 52 is connected to an external wiring (not shown). It is connected to the connector.
Further, a rectangular parallelepiped moving block 53 is fixed to the vicinity of the tip of the tape fiber 8 with an adhesive, and the two tape fibers 8 are bundled by each moving block 53. As shown in FIGS. 11 and 12, the moving block 53 has a through hole 54 therein, and after inserting two tape fibers 8 into the through hole 54, the adhesive is poured into the through hole 54. Thus, the moving block 53 can be fixed at a predetermined position of the tape fiber 8. In addition, a funnel 54 a having a divergent shape is provided at one end of the through hole 54.
With such a funnel 54a, the tape fiber 8
Is easily passed through the through hole 54, and the adhesive is also easily poured.

As shown in FIGS. 8 and 13, a guide portion 5 for guiding each moving block 53 is provided on the fiber discharge side end 4 b on the upper surface of the extra length storage tray 4.
5 are arranged in plurality. Each guide part 55 is formed as a pair of left and right elongated guide pieces 55A and 55B, and guides the moving block 53 so as to sandwich it from both sides. Therefore, the moving block 53 can be slid along the direction in which the guide portion 55 extends. The guides 55 are arranged in a line at the fiber discharge end 4b of the extra length storage tray 4.

As shown in FIG. 14, the extra length storage tray 4
Has a metal tape guide plate 56 made of a thin plate,
The tape guide plate 56 is provided with the above-described guide pieces 55A, 55A.
B is created. In producing each guide portion 55, first, a U-shaped cut portion 57 is formed into a mirror-symmetric shape by pressing a thin plate, and then the cut portion 5 is formed.
By bending the part surrounded by 7 in the same direction,
Two parallel guide pieces 55A and 55B are formed. The moving block 5 is provided between the guide pieces 55A and 55B.
3 are formed at intervals such that they can slide.

As shown in FIGS. 15 and 16, a rectangular parallelepiped aluminum height regulating block 58 is arranged between the guide portions 55, and the lower extra length storage tray 4 and the upper extra length tray are arranged. By sandwiching the height regulation block 58 between the long storage tray 5 and the lower excess storage tray 4 and the upper excess storage tray 5, the interval is always kept constant.
That is, a constant gap can always be created between the extra length storage trays 4 and 5 by the height of the height regulating block 58, and a height space in which the moving block 53 can move is easily and reliably created. Each height regulating block 58 is fixed to the extra length storage tray 4 with a screw. At this time, the height regulating block 58 and the extra length accommodation tray 4 sandwich the plate-shaped tape guide plate 56,
The fixing of the tape guide plate 56 is achieved.

As described above, even when the moving block 53 is sandwiched between the extra-length storage trays 4 and 5, the moving block 53 can reliably slide along the guide pieces 55A and 55B. Therefore, the operator grasps the connector 52 and pulls the connector 52, so that the tape fiber 8
Will be reliably drawn by any length. By pushing back the connector 52, the tape fiber 8
Can be reliably pushed back to the original position. In addition,
Such a height regulating block 58 includes guide pieces 55A,
This is a component that is used when it is difficult to control the height of the moving block 53B.
In some cases, when the sliding is ensured, it may not be adopted.

As shown in FIGS. 16 and 17, a stopper 59 is provided on the moving path of the moving block 53 so that the tape fiber 8 is not pulled out of the housing 2 more than necessary. The stopper portion 59 is located at a position facing the front end of the guide portion 55, and
A and a portion sandwiched between the guide piece 55B and A
From the lower surface of the upper extra length storage tray 5, the guide pieces 55A, 55
5B and protrudes to a position where it abuts on the moving block 53. Therefore, the connector 52
Is sufficiently pulled out, the moving block 53 hits the stopper portion 59, whereby it is possible to appropriately prevent the tape fiber 8 from being pulled out excessively due to carelessness of the operator,
Core fiber breakage of the tape fiber 8 is properly avoided. The stoppers 59 are individually provided corresponding to the respective moving blocks 53. However, the stoppers 59 may be formed integrally in a slender rod shape so as to correspond to the entire moving blocks 53. Good.

As shown in FIG. 8, the fiber fixing member 50 and the guide portion 55 are arranged diagonally on the substantially rectangular extra-length storage tray 4, and the fiber fixing member 5
Between the zero and the moving block 53, the tape fibers 8 are crawling in a waveform in a state of being arranged. In order to secure this waveform, a plurality of fiber alignment pins 60 are erected on the upper surface of the extra length storage tray 4 at equal intervals corresponding to the positions where the tape fibers 8 crawl along the waveform. Also,
On the extra length storage tray 4, the tape fiber 8 maintains an upright state (ie, a “vertical state”) along the fiber alignment pins 60 by utilizing the elasticity of the bending direction of the tape fiber 8 itself. While crawling, the tape fiber 8 has a bending radius of 30 mm, which is a problem in quality control. The “vertical state” refers to a state in which the flat surface in the width direction formed by aligning the optical fibers in the tape fiber 8 is substantially perpendicular to the surface of the extra length storage tray 4.

When the tape fiber 8 is placed vertically, the side surface of the tape fiber 8 comes into contact with the surface of the extra length storage tray 4. The contact area becomes small, and the tape fiber 8 generated when the tape fiber 8 is pulled out is reduced.
And reduces the lateral pressure applied to the tape fiber 8. Further, not only can a large number of tape fibers 8 be regularly arranged on the extra length storage tray 4, but also a desired interval is formed between adjacent tape fibers 8 to increase the extra length of the tape fibers 8. Can be. The arrangement relationship of the fiber alignment pins 60 is arbitrary as long as the tape fiber 8 can be formed into a waveform in a vertical state.

Further, the tape fiber 8 is forcibly maintained in the vertical position on the extra-length storage tray 4, but between the moving block 53 and the connector 52, the connector 52 is provided with a horizontal bra. For proper prevention, the tape fiber 8 needs to be laid down (that is, in the “horizontal state”). Therefore, as shown in FIG. 15, the tape fiber 8 is twisted substantially 90 degrees behind the moving block 53, and the vicinity of the tip of the tape fiber 8 in the horizontal state is fixed to the moving block 53. The “horizontal state” refers to a state in which the flat surface in the width direction formed by aligning the optical fibers in the tape fiber 8 is substantially parallel to the surface of the extra length storage tray 4.

As shown in FIGS. 1 and 17, the connector 5
2 needs to be exposed from the housing 2 in consideration of connection with external wiring. Therefore, a plurality of fiber outlets 61 aligned in a straight line are formed on the front surface of the housing 2, and each fiber outlet 61 is formed at a position facing each guide portion 55. Immediately below the fiber outlet 61, an inclined connector mounting surface 62 for mounting each connector 52 is provided, and the connector mounting surface 62 is formed by projecting the front surface of the housing 2 forward. Produced. Therefore, by placing the connector 52 on the connector mounting surface 62, the connector 52 is properly prevented from being bragged.

Next, when the number of the tape fibers 8 accommodated in the housing 2 is extremely large, the tape fibers 8 are crowded on the lower surplus accommodation tray 4, and the tape fibers 8 are entangled with each other. There is a fear. Therefore,
Another extra length storage tray 5 is placed above the lower extra length storage tray 4.
Is provided.

As shown in FIG. 19, the upper surplus storage tray 5 has substantially the same configuration as the lower surplus storage tray 4, so that the same reference numerals are given to the drawings so that the structure is the same. Keep the description simple. The difference between the upper surplus storage tray 5 and the lower surplus storage tray 4 (see FIG. 8) is that when positioning the fiber fixing member 50 to one side of the fiber introduction side end 5a, It faces the position of the fiber fixing member 50 (see FIG. 8) arranged at the fiber introduction side end 4a. That is, in the lower excess storage tray 4, the fiber fixing members 50 are arranged on the left side of the paper surface of FIG. 8, and in the upper excess storage tray 5, the fiber fixing members 50 are arranged on the right side of the paper surface of FIG. Are lined up.

Similarly, in positioning the guide portion 55 to one side of the fiber discharge side end 5b, this position is determined by the guide portions 55 arranged on the fiber discharge side end 5b.
(See FIG. 8). That is, in the lower excess storage tray 4, the guide portions 55 are arranged on the right side of the paper of FIG.
The guide portions 55 are arranged on the left side of the paper of FIG.
By doing so, as shown in FIG. 1, the fiber outlets 61 can be arranged in a line, and at the same time, 100 tape fibers 8 coming out of the housing 7 of the optical switch 3 are connected to 5
It can be sorted right and left by exactly 0 lines (see FIG. 2). In addition, as shown in FIG. 16, since the height regulating block 58 is disposed between the upper excess storage tray 5 and the lid 6, the movement block 53 slides on the excess storage tray 5. Secured.

As described above, the tape fiber 8 coming out of the optical switch 1 is arranged in a waveform while maintaining the standing state on the extra length storage trays 4 and 5, so that a margin is generated. 8 is extra length. Therefore, when an operator grips an arbitrary connector 52 discharged from the fiber outlet 61 of the housing 2 and pulls the connector 52, the tape fiber 8 is pulled out by an amount by which the moving block 53 can move. By such a pull-out operation, the connector 52 and the connector of the external wiring (not shown)
Connection work with the device can be performed reliably.

After the connection work or disconnection between the connector 52 and the external wiring connector is completed, the connector 52 is pushed toward the housing 2 to return the connector 52 to its original position. As described above, the connector 52 is pulled out when it is necessary to connect the external wiring connector or when disconnecting the external wiring connector. The entanglement between the eight hardly occurs.

The present invention is not limited to the above-described embodiment, and the number of extra length storage trays is determined by the number of cores of the tape fiber 8 (for example, 4, 8, 12, or 16). It is optional according to the number. Further, the optical switch 3 and the optical wiring housing box can be formed separately.
By placing the optical switch 3 in the optical wiring housing box 1, the inconvenience of separating the optical switch 3 from the optical switch 3 is eliminated. In addition, such an optical wiring housing box 1 may be used as a single unit or may be an existing optical branching module housing frame (so-called FTM (Fiber Terminatio)).
n Module) It may be installed and used at the bottom of the frame. Further, the number of tape fibers 8 to be discharged from the optical switch 3 is not limited to 100, and may be 100 or more.

[0043]

According to the optical switch receiving box for an optical switch according to the present invention, a plurality of tape fibers extending from the optical switch are stored in the housing for an extra length, and the connector of each tape fiber is exposed from the fiber outlet of the housing. The optical fiber storage box, the tip of the tape fiber extending from the optical switch by crawling the tape fiber vertically on the surface of a plate-shaped extra-length storage tray fixed inside the housing. To facilitate the connection work between the connector provided in the connector and the external wiring connector.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an optical wiring storage box according to the present invention.

FIG. 2 is a perspective view showing an internal structure of the optical wiring housing box.

FIG. 3 is a sectional view showing the internal structure of the optical switch.

FIG. 4 is a perspective view showing a movable arm and a movable arm driving mechanism applied to the optical switch.

FIG. 5 is a plan view of the movable arm and the movable arm drive mechanism shown in FIG.

FIG. 6 is a side view showing a state in which a master-side optical fiber provided on a movable arm is lowered, and this optical fiber is brought into V-contact with an optical fiber array member.

FIG. 7 is a side view showing a state in which the master side optical fiber is raised and the V-contact state is released.

FIG. 8 is a plan view showing a lower extra length storage tray applied to the optical wiring storage box of the present invention.

FIG. 9 is a perspective view showing a fiber fixing member.

FIG. 10 is a perspective view showing a state in which the moving block is fixed to a tape fiber.

FIG. 11 is a sectional view of a moving block.

FIG. 12 is a front view of a moving block.

FIG. 13 is a perspective view showing a state in which a moving block is arranged between guide pieces.

FIG. 14 is a perspective view showing an arrangement state of guide pieces.

FIG. 15 is a perspective view showing a height regulating block.

FIG. 16 is a cross-sectional view showing a state where upper and lower extra length storage trays of the optical wiring storage box are assembled in a housing.

FIG. 17 is a sectional view taken along the line AA of FIG. 16;

FIG. 18 is a perspective view showing an arrangement relationship of fiber alignment pins.

FIG. 19 is a plan view showing an upper excess length storage tray applied to the optical wiring storage box of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Optical wiring accommodation box, 2 ... Housing, 3 ... Optical switch, 4, 5 ... Extra length accommodation tray, 4a, 5a ... Fiber introduction side end, 4b, 5b ... Fiber discharge side end, 8 ... Tape fiber, 53: moving block, 55: guide section,
55A, 55B: guide piece, 60: fiber alignment pin,
61: Fiber outlet.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuya Ito 1 Tayacho, Sakae-ku, Yokohama-shi, Kanagawa Prefecture Sumitomo Electric Industries, Ltd. Yokohama Works (72) Inventor Kenichi Tomita 3-9-1-2 Nishishinjuku, Shinjuku-ku, Tokyo No. Within Nippon Telegraph and Telephone Corporation (72) Kenji Yoshioka, Inventor 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo No. Japan Telegraph and Telephone Corporation

Claims (5)

[Claims] 1. An optical wiring storage box in which a plurality of tape fibers extending from an optical switch are accommodated in a housing for an extra length, and a connector of each of the tape fibers is exposed from a fiber outlet of the housing. An optical wiring storage box for an optical switch, wherein the tape fiber is crawled vertically on a surface of a plate-shaped extra-length storage tray fixed inside a housing. 2. The optical wiring storage box for an optical switch according to claim 1, wherein said tape fiber on said extra length storage tray is wrapped around in a waveform. 3. The tape fiber according to claim 1, wherein the tape fiber is twisted by approximately 90 degrees near the fiber outlet.
An optical wiring storage box for an optical switch as described in the above. 4. A moving block that moves on the extra-length storage tray is disposed at a fiber discharge side end of the extra-length storage tray near the fiber outlet. The optical wiring storage box for an optical switch according to any one of claims 1 to 3, wherein the moving block is fixed in the vicinity of the tip of the tape fiber which is placed horizontally. 5. The optical switch according to claim 1, wherein a plurality of fiber alignment pins are erected on the extra length storage tray at a position where the tape fiber is crawled. For optical wiring storage box.