JP2013190489A - Optical connector storage case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical connector storage case which allows efficient optical cable connection work using an optical connector in the storage case.SOLUTION: A storage case 1 is vertically attached to an attachment object part so that a hinge axis of a hinge part is perpendicular, and a first tray 4 and a second tray 5 are mounted so that they can be opened and closed forward and backward via hinge shafts 40a and 50a provided in side end parts. A plurality of optical connector holding frames 48 and 58 which fit into and hold optical connectors are arranged in optical connector storage chambers 42 and 52 of the first tray 4 and the second tray 5 so that each of the optical connector holding frames can be pulled forward and turned via an upper pivot part. Holding frames 44 and 54 having, in their lower parts, cable holding parts 45 and 55 with holding grooves for deriving an optical cable are arranged surrounding the plurality of optical connector holding frames so that they can be pulled forward and turned via the upper pivot part.

Description

  The present invention relates to an optical connector storage case that is installed mainly on a pull-up pipe and stores an optical connector that connects a subscriber-side optical cable and a station-side optical cable.

  For example, a storage case described in Patent Document 1 below is known as an optical connector storage case for drawing an optical cable on the office side into a building such as an apartment house and storing an optical connector connected to the optical cable on the subscriber side. Yes.

JP 2011-191333 A

  The storage case includes a tray-shaped case with a shallow depth. The storage case is provided with a storage portion for storing the optical connectors side by side in the case, and an extra length storage portion for storing the extra length portion of the optical fiber by winding the optical connector. The two cases are pivotally supported by a pin so as to be pivotable up and down, and are arranged side by side on the base.

  The base is housed in an optical junction box and installed in the optical junction box. The optical cable on the station side (flat cable with an optical fiber strand covered with a tension member and a similar optical drop cable on the subscriber side). A connection portion to which the optical connector is connected is provided at an end of each case, and an optical splitter module for connecting an optical fiber strand introduced into the case via the optical connector of the connection portion, and an optical fiber strand The extra length storage part is provided in the same case.

  However, the conventional storage case is arranged in a narrow storage space in the same case in a state where the optical splitter module part and the extra length storage part are not separated as they are, and further, an optical connector storage part is provided at the end of the case. As a result, a large number of optical fiber strands and optical cables are congested within the case, and the existing work of the optical fiber strands is likely to be adversely affected as the workability of the connection work deteriorates.

  In particular, when the optical splitter module and the extra length storage unit are arranged in the same case, an optical cable entering the optical splitter module, a number of optical fiber strands derived from the optical splitter module, and an optical fiber strand from the optical connector, Furthermore, an optical fiber strand or the like introduced into the case alone through an optical connector is very complicated.

  For this reason, when an operator performs an optical cable connection work in the optical junction box, if the existing optical fiber is touched and moved greatly, the transmission loss of the optical fiber is easily deteriorated. Therefore, there is a problem that it is difficult to efficiently connect the optical cable.

  The present invention solves the above-described problems, and an object thereof is to provide an optical connector storage case that can efficiently and properly connect an optical cable using an optical connector stored in the storage case.

The optical connector storage case according to the present invention is an optical connector storage case in which a tray for storing a plurality of optical connectors is rotatably disposed in the storage case.
A base tray having a mounting portion attached to the mounted portion on the back surface and having a splitter storage chamber for storing the optical splitter module inside,
It is attached to the front side of the base tray so as to be openable and closable via a hinge portion, and has a surplus length processing chamber for accommodating a surplus length portion of the optical fiber on the back side and accommodates the plurality of optical connectors on the front side. A first tray having an optical connector storage chamber;
The first tray is attached to the front side through the hinge portion so as to be openable and closable, and has a surplus length processing chamber for accommodating a surplus length portion of the optical fiber on the back side, and the plurality of optical connectors on the front side. A second tray having an optical connector storage chamber for storing
A cover surrounding the first tray and the second tray and attached to the base tray;
The storage case is vertically attached to the attached portion with the hinge axis of the hinge portion being vertical, and the first tray and the second tray are opened and closed forward and backward via the hinge shaft provided at the side end portion. Installed as possible,
In the optical connector storage chambers of the first tray and the second tray, a plurality of optical connector holding frames for fitting and holding the optical connectors are respectively arranged so as to be able to be pulled forward and pivoted through the upper support portions. A holding frame provided with a cable holding portion having a holding groove for drawing out an optical cable at the lower portion is capable of being rotated forwardly through the upper support portion so as to surround the plurality of optical connector holding frames. It is arranged.

  According to the optical connector storage case of the present invention, the first tray and the second tray that can be opened and closed are provided with the extra length processing chamber on the back surface side, and the optical connector storage chamber is provided on the front surface side. The connector connection operation can be performed separately, and the state where the optical fiber and the optical cable are congested in the case can be avoided, and the optical connector can be connected appropriately and efficiently.

  In addition, since each optical connector holding frame that holds the optical connector is pivotally supported so that it can be drawn forward and rotated, when connecting the optical connector connector plug into the connector socket, each optical connector holding frame is moved forward. It can be pulled out and connected easily. Further, when the holding frame is pulled forward, the existing optical connector held by the optical connector holding frame and the optical cable connected thereto are drawn forward, so that the connector plug is connected to the unconnected optical connector in the second tray. When connecting an optical fiber or an optical fiber, the existing optical connector or optical cable does not get in the way, and the connection can be performed safely without touching the existing optical fiber.

  Here, in the upper part of the tray body of the first tray and the second tray, there are a plurality of curved grooves for passing the optical fiber wires from the extra length processing section on the back surface side together with an opening communicating with the back surface side. It is preferable that the upper curved groove is formed corresponding to the position of each optical connector holding frame. According to this, the optical fiber is passed through the opening and the curved groove, and is converged or bent from the surplus length processing part on the back side to the optical connector in each optical connector holding frame of the optical connector housing part on the front side. Without the need for wiring.

  In addition, it is preferable to provide an introduction cable gripping portion and a lead-out cable gripping portion for introducing and leading out the optical cable at the lower part on the back side of the tray body of the second tray. According to this, the optical fiber strand of the optical cable introduced through the introduction cable gripping part can be immediately put into the extra length processing chamber for extra length processing, and the connector plug from the optical connector on the surface side to lead out. Thus, the optical cable having the optical fiber introduced into the surplus length processing section through the cable can be safely led out through the lead-out cable gripping section.

  In addition, a lower curved groove portion having a plurality of curved grooves for passing the optical fiber from the surplus length processing portion on the back surface side together with an opening communicating with the back surface side is provided at the lower portion of the tray body of the second tray. It is preferable to form it corresponding to the position of each optical connector holding frame. According to this, the optical fiber from the optical connector plug connected to the optical connector in the optical connector housing chamber of the second tray can be safely wired to the extra length processing chamber on the back side through the curved groove. .

  The optical connector holding frames in the optical connector housing chambers of the first tray and the second tray are each provided with a locking portion that is locked at the optical connector storage position, and the locking portion is the optical connector. It is preferable to be able to be locked and unlocked by operating the holding frame.

  According to this, each optical connector holding frame holding the optical connector is held at a fixed position in the optical connector storage chamber, while the connector plug of the optical connector is easily connected to the connector socket. The connection work can be easily performed by releasing the lock and pulling and rotating the optical connector holding frame.

  According to the optical connector storage case of the present invention, the optical cable on the station side, the optical cable on the subscriber side, and the like can be appropriately and efficiently connected via the optical connector stored in the storage case.

It is a perspective view of the optical connector storage case which shows one Embodiment of this invention. It is the perspective view seen from the back of the optical connector storage case. It is a perspective view from the front of the state which removed the cover. It is a front view of the state which removed the cover. It is a right view of the state which removed the cover. It is a perspective view in the state where the 1st tray and the 2nd tray were opened to the base tray. It is the perspective view seen from the side surface of the state which opened the 1st tray and the 2nd tray with respect to the base tray. It is a perspective view of a 1st tray or a 2nd tray. It is a disassembled perspective view of the state which removed the optical connector holding frame and the cable holding part of the 1st tray or the 2nd tray. It is a perspective view of the state where a part of optical connector holding frame was pulled out and rotated. It is a perspective view of the tray main body of a 1st tray or a 2nd tray. It is the perspective view seen from the diagonal lower side of the tray main body. It is the perspective view seen from the back side of the tray main body. It is the perspective view (a) of the optical connector holding frame seen from the right side, and the perspective view (b) of the optical connector holding frame seen from the back side. It is the perspective view (a) of the holding frame seen from the right side, and the perspective view (b) of the holding frame seen from the back side. It is a perspective view of the state where the grip frame was pulled out and rotated. It is a perspective view of the state where the optical connector holding frame was pulled out and rotated. It is the perspective view seen from the right side of the state which assembled | attached the optical connector to the optical connector holding frame, and pulled and rotated the holding | grip frame. It is the perspective view seen from the left side of the state which assembled | attached the optical connector to the optical connector holding frame and pulled out and rotated the holding frame. It is a front view of the optical connector storage case which shows a usage pattern. It is a rear view of the optical connector storage case. It is a front view which shows another usage pattern.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3 and the like, the optical connector storage case 1 has a tube clamp 28 as an attachment portion attached to an attachment portion such as a pull-up tube P on the back surface, and an optical splitter module 10 (FIG. 7). The base tray 2 having a splitter storage chamber 21 for storing the inside of the base tray 2 is attached to the front side of the base tray 2 so as to be openable and closable via a hinge portion 40a. A first tray 4 having an extra length processing chamber 49 for storing the optical connector storage chamber 42 for storing the plurality of optical connectors on the front surface side, and a hinge portion 50a on the front surface side of the first tray 4 via a hinge portion 50a. A second mounting chamber 59 that is attached so as to be openable and closable, has a surplus length processing chamber 59 for accommodating a surplus length portion of the optical fiber on the back side, and has an optical connector housing chamber 52 for accommodating the plurality of optical connectors on the front side. Tray 5 and second Configured to include a cover 3 attached to the base tray 2, the tray 4 and the second tray 5 surrounds.

  As shown in FIG. 7, the base tray 2 that is the base of the storage case 1 and is formed in a shallow tray shape is provided with a splitter storage chamber 21 for storing the optical splitter module 10 inside. The splitter storage chamber 21 is provided with a module stopper 25 for stopping the optical splitter module 10 at a fixed position. In addition, a pair of support posts 22 for hinges are erected on one side of the inside of the base tray 2 at the top and bottom, and as shown in FIG. The first tray 4 and the second tray 5 are supported by the pair of hinge support shafts 23 via the hinge portions 40a and 50a so as to be opened and closed.

As shown in FIGS. 1 and 2, fitting grooves 24 are formed along the vertical sides on both sides of the base tray 2. When the cover 3 is covered, the side edges on both sides of the cover 3 are fitted into the fitting grooves. 24 is inserted and a cover is inserted. In addition, locking portions 3 a are provided at both lower portions of the cover 3, and the locking portions 3 a are locked to the locking portions at the bottom of the base tray 2 when the cover 3 is covered. The cover 3 is formed in a size that covers the entire first tray 4 and second tray 5 on the base tray 2. The first tray 4 and the second tray 5 are basically trays having the same structure. It can be formed using the same mold. However, the functions of the first tray 4 and the second tray 5 are different as will be described later, and in the second tray 5 on the front side, as shown in FIG. On the other hand, in the inner first tray 4, the groove provided in the lower portion of the tray main body 40 is not used.

  As shown in FIGS. 11 to 13, the tray bodies 40 and 50 of the first tray 4 and the second tray 5 are provided with upper curved grooves 41 and 51 at the upper part of the surface and lower curved grooves 43 and 53 at the lower part. The optical connector housing chambers 42, 52 are provided between the upper curved groove portions 41, 51 and the lower curved groove portions 43, 53. The optical connector housing chambers 42, 52 include a number of optical connector holding frames 48, 58 is arranged in parallel so as to be rotatable about the upper pivot portion. In addition, gripping frames 44 and 54 for gripping the optical cable are pivotally supported so as to be pulled out toward the front so as to surround the optical connector holding frames 48 and 58 provided side by side.

  As shown in FIG. 13, surplus length processing chambers 49 and 59 are provided on the back surfaces of the tray main bodies 40 and 50. In the surplus length processing chambers 49 and 59, the surplus length portions of the optical fiber strands are secured. Circular frames 49a and 59a for winding with a curvature of a bending radius (for example, a radius of 15 mm or more) are provided, and an optical fiber strand is wound around the circular frames 49a and 59a to prevent bending, and an extra length is obtained. Processing is to be performed.

  In addition, in the lower part of the back surface side of the tray body 50 of the second tray 5, an introduction cable holding portion 26 that holds and holds the incoming optical cable IDC to be inserted in the groove and an outgoing optical cable ODC that is led out are fitted in the groove. In this example, a maximum of two incoming optical cables IDC can be introduced from the outside through the introduction cable gripping part 26, and a maximum of four outgoing optical cables ODC are connected to the outside. The lead-out cable gripper 27 can be led out.

  The surplus length processing chambers 49 and 59 are formed by dividing the upper surplus length chamber and the lower surplus length chamber through a partition, and the upper surplus length chamber is introduced into the upper surplus length chamber through the introduction cable gripping portion 26. The IDC optical fiber strand enters, and the surplus length chamber in the lower part is processed for the surplus length of the optical fiber strand of the outgoing optical cable ODC led out through the lead-out cable gripping portion 27, thereby introducing and leading out. Congestion of optical fiber strands for use is prevented.

  A plurality of curved curved grooves 41a and 51a are formed in the upper curved groove portions 41 and 51 provided on the upper surface side of the tray main bodies 40 and 50 so as to open from the central position of the upper portion to the left and right sides. In these curved grooves 41 a and 51 a, an optical fiber strand led out from the optical splitter module 10 of the base tray 2 or an optical fiber strand introduced from the extra length processing chamber 59 on the back surface of the second tray 5 is bare. Each line passes separately and is introduced into the optical fiber storage chambers 42 and 52 on the front side of the tray main bodies 40 and 50.

  On the other hand, the lower curved groove portions 43 and 53 provided on the lower surface side of the tray main bodies 40 and 50 are provided with curved grooves 43a and 53a that are opposite to the upper and lower sides, and are provided below the optical connector storage chambers 42 and 52. The optical fiber strands led out to the right and left sides are bent and formed so as to be gathered in the center through grooves arranged on both the left and right sides. In particular, the tray main body 50 of the second tray 5 causes the optical connector strands that have passed through the curved grooves 53a to be led out to the back side, and is led out through the extra cable length processing chamber 59 on the back side and through the lead-out cable gripping portion 27. It has a structure.

  The introduction cable gripping portion 26 and the lead-out cable gripping portion 27 provided at the lower portion of the tray main body 50 of the second tray are portions for introducing or leading out an optical cable having one or more optical fiber strands. In other words, the introduction-side optical cable IDC having one or more optical fiber strands is introduced into the storage case 1 through the introduction cable gripping portion 26 of the second tray, and these optical fiber strands are After the extra length processing is performed in the upper extra length processing chamber 49, the connector socket CS enters the optical connector storage chamber 42 through the upper curved groove portion 41 on the front side and is stored in the optical connector holding frame 48 of the optical connector storage chamber 42. Are connected via a connector plug CP.

  Each optical connector holding frame 48 of the optical connector storage chamber 42 holds a connector socket CS, and a lead-out side connector plug CP is connected to the lower part of the connector socket CS. The lead-out optical fiber or the optical cable connected to the lead-out connector plug CP enters the back surface of the second tray 5 through the curved groove 43a of the lower curved groove 43, and the extra length processing chamber 49 performs extra length processing. After that, it is led out from the lead-out cable gripping portion 27 as the outgoing optical cable ODC as it is. Alternatively, the optical cable led out from the lower part of the connector socket CS through the connector plug CP on the lead-out side passes through the side part of the second tray 5 from the opening provided in the tray main body 40 of the first tray 4, and the base tray Are connected so as to enter the splitter splitter chamber 21 and the optical splitter module 10 (FIG. 7).

  As shown in FIG. 9, in the optical connector storage chamber 42 provided on the front side of the tray bodies 40, 50 of the first tray 4 and the second tray 5, a large number of optical connector holding frames 48, 58 are pivoted on the upper part thereof. Via the support parts 48a and 58a, they are arranged side by side in the horizontal direction so that they can be drawn forward and rotated. As shown in FIG. 14, the optical connector holding frames 48 and 58 are formed in a vertically long angle member shape having a U-shaped cross section, and a standardized connector socket CS can be closely fitted therein. Is formed.

  The optical connector holding frames 48 and 58 are provided with a fitting portion at the bottom thereof, and when the connector socket CS is inserted into a fixed position in the optical connector holding frames 48 and 58, the fitting portions are fitted. Thus, the connector socket CS is held in the holding frame.

  Further, locking portions 48b and 58b are provided on the back side of the lower part of the optical connector holding frames 48 and 58, and the optical connector holding frames 48 and 58 are returned to the optical connector storage chambers 42 and 52 in the tray main bodies 40 and 50. When the optical connector housing chambers 42 and 52 are rotated, the optical connector housing frames 48 and 58 are locked to locking projections 42 a and 52 a (FIG. 12) provided on the surfaces of the optical connector housing chambers 42 and 52. It is a structure held in position.

  On the other hand, when removing the locking portions 48b and 58b and rotating the optical connector holding frames 48 and 58 toward the front, the handle portions 48c and 58c provided at the lower portions of the optical connector holding frames 48 and 58 are held. If the optical connector holding frames 48 and 58 are bent toward the locking side, the locking portions 48b and 58b are configured to be detached from the locking projections 42a and 52a. In addition, as shown in FIG. 17, when the optical connector holding frames 48 and 58 are pulled out from the fixed positions of the optical connector storage chambers 42 and 52 and rotated, for example, they stop at an angle of about 30 with respect to the vertical line. Is provided with a locking portion.

  Further, as shown in FIG. 9, the front side of each tray body 40, 50 of the first tray 4 and the second tray 5 is arranged so as to surround the optical connector holding frames 48, 58 of the optical connector storage chamber 42. Character-shaped gripping frames 44 and 54 are attached to the front so as to be able to be pulled out and rotated. As shown in FIG. 15, the grip frames 44 and 54 are formed in an upward U-shaped frame shape, cable grip portions 45 and 55 are provided in the lower portion, and pivot portions 44 a and 54 a are formed in the upper end portions. . As shown in FIG. 9, the grip frames 44, 54 are pivotally fitted to upper pivot portions 47, 57 provided on the upper portions of the tray bodies 40, 50 as shown in FIG. As shown in FIG. 2, the drawer can be rotated forward to an angle of, for example, about 30 degrees with respect to the vertical line.

  Further, as shown in FIG. 15, cable gripping portions 45 and 55 in which a large number of lead-out gripping grooves 46 and 56 are formed at predetermined intervals are horizontally provided below the gripping frames 44 and 54. The lead holding grooves 46 and 56 of the cable holding portions 45 and 55 are arranged in parallel at a predetermined interval by the same number (for example, eight) as the optical connector holding frames 48 and 58, and the connectors in the optical connector holding frames 48 and 58. When the optical cable connected to the socket CS is passed through, it is arranged at a position directly under which it can be stably held. A plurality of convex portions are formed inside the lead-out holding grooves 46, 56, and can be easily held by simply pushing the optical cable into the lead-out holding grooves 46, 56 from the front side during wiring. The grip frames 44 and 54 are structured to stop at a predetermined position when the grip frames 44 and 54 are pulled out to a predetermined angle as shown in FIG. 16, and when they are returned to the storage positions inside the tray main bodies 40 and 50, Locking portions to be locked are provided in the tray main bodies 40 and 50.

  As a result, when the gripping frames 44 and 54 are pulled out and rotated forward, if the optical cable is gripped by the cable gripping portions 45 and 55, the optical cable is also pulled forward. Therefore, if the locking portions 48b and 58b of the optical connector holding frames 48 and 58 in which the connector socket CS to which the optical cable is connected are accommodated are removed, the optical connector holding frames 48 and 58 holding the connector socket CS are removed. Is pivoted forward through the upper pivotal support portions 48a and 58a, so that the optical connector holding frames 48 and 58 to which the optical cable is not connected remain in the optical connector storage chamber 42.

  Therefore, when a new connector socket CS is inserted into the optical connector holding frames 48 and 58 to connect the connector plug CP or the like, the connection can be easily made without touching the already connected connector socket CS or connector plug CP. Work can be done. Further, since the optical connector holding frames 48 and 58 for holding the connector socket CS can each be independently pulled out through the upper pivotal support portions 48a and 58a, the necessary optical connector holding frames 48 and 58 are provided. The connector socket CS can be easily fitted by pulling 58 forward, and the connector plug CP at the end of the optical cable or the optical fiber can be easily inserted and connected to the upper and lower portions.

  As shown in FIGS. 10, 18, and 19, the first tray 4 is attached to the top of the base tray 2 (front) so as to be openable and closable via the hinge portion 40 a, but the top of the first tray 4 (front). The second tray 5 is attached so that the hinge part 50a can be opened and closed. The hinge part 40a and the hinge part 50a are pivotally supported by the same spindle 23 (FIG. 6). In the first tray 4 of this example, basically, a plurality of optical fiber strands branched and led out from the optical splitter module 10 are subjected to surplus length processing in a surplus length processing chamber 49, and then the front side connector socket CS. The single-core drop cables are led out to the outside through the lead-out gripping grooves 46 of the gripping frame 44.

  The second tray 5 is a tray having the same configuration as that of the first tray 4, and a large number of optical connector holding frames 58 can be pulled out and rotated through the pivotal support portion 58 a in the optical connector storage chamber 52 inside the second tray 5. Further, a U-shaped gripping frame 54 is drawn out to the front via the upper support 57 so as to surround the periphery of the optical connector storage chamber 52 in which the optical connector holding frame 58 is stored. Mounted movably.

  As shown in FIG. 16, the second tray 5 is provided with an introduction cable gripping portion 26 and a lead-out cable gripping portion 27 at the lower part on the back side of the tray main body 50, and introduces the incoming optical cable IDC introduced from the outside. Through the cable gripping portion 26, it is introduced into an extra length processing chamber 59 provided on the back surface of the second tray 5, and the outgoing optical cable ODC is led out through the lead-out cable gripping portion 27. The optical cable led out to the outside through the lead-out cable gripping portion 27 is an optical cable having two or more optical fiber strands inside, and in this case, the lead-out cable gripping portion 27 is used. In addition, the single core drop cable having one optical fiber to be pulled down to the subscriber side is used for each of the cable gripping portion 45 below the first tray 4 and the cable gripping portion 55 below the second tray 5. It is led out through the holding grooves 46 and 56.

  Next, a usage mode of the optical connector storage case having the above configuration will be described. For example, in a building such as a housing complex, an optical cable pull-up pipe P is exposed from the underground with the upper portion exposed and buried vertically, and the optical cable on the station side may be drawn into the building through the pull-up pipe P. In such a case, as shown in FIGS. 2, 20, and 21, the optical connector storage case 1 is fixed to the pull-up pipe P using a pipe clamp 28 provided on the back surface of the base tray 2, or FIG. As described above, the support pipe SP provided adjacent to the pulling pipe P is fixed in a standing posture.

  2, 20, and 21, the upper portion of the pull-up pipe P is opened, and the incoming optical cable IDC is drawn out therefrom, and the incoming optical cable IDC is introduced into the storage case 1. When the existing terminal box TK is attached to the upper part of the pulling pipe P as shown in FIG. 22, the support pipe SP is attached to the adjacent position of the pulling pipe P via the mounting bracket TB. The storage case 1 is attached and fixed to the upper part. Note that the storage case 1 can be attached to a wall surface or the like in addition to the pulling pipe P and the support pipe SP.

  In the optical connector storage chamber 42 of the first tray 4 and the optical connector storage chamber 52 of the second tray 5 in the storage case 1, a required number of connector sockets CS are connected to the optical connector holding frame 48 in the optical connector storage chamber 42. And it is fitted and fitted to the optical connector holding frame 58 in the optical connector storage chamber 52. In the case of this example, a maximum of 16 connector sockets CS are stored in the optical connector holding frames 48 and 58 of the optical connector storage chambers 42 and 52 of the first tray 4 and the second tray 5 and used for connecting optical cables. can do.

The station-side incoming optical cable IDC introduced through the pull-up pipe P opens the second tray 5 and is introduced into the storage case 1 from the introduction cable gripping portion 26 on the lower back side thereof. In this example, one or two incoming optical cables IDC are introduced through the holding groove 26a (FIG. 13) of the introduction cable holding portion 26, and each incoming optical cable IDC is pushed into the holding groove 26a, thereby entering the groove. It can be easily held. The introduced entrance optical cable IDC enters the extra length processing chamber 59 on the back side of the second tray 5 from the introduction cable gripping portion 26, where the exposed optical fiber is peeled off from the coating layer of the optical cable. The excess length is wound around a circular frame 59a in the excess length processing chamber 59 and processed. Furthermore, the front end side of the optical fiber strand enters the front side through the upper opening of the second tray 5, and the connector plug CP is connected to the front end of each optical fiber strand. Each connector plug CP is inserted and connected to the connector socket CS in the optical connector holding frame 58 in the optical connector storage chamber 52 from above.
(First usage pattern)
For example, when a plurality (1 to 8) of optical fiber strands are included in the input side optical cable IDC gripped by the introduction cable gripping portion 26, each of the optical fiber strands is subjected to extra length processing, and then each light A connector plug CP is connected to the tip of the fiber strand, and each optical fiber strand passes from the upper opening of the second tray 5 through the curved groove 51a of the upper curved groove portion 51, and is arranged in parallel in the optical connector storage chamber 52. Are inserted into the respective connector sockets CS in the optical connector holding frame 58 from above. At this time, each optical fiber strand is spread so as to be distributed in a plane through the curved groove 51a of the upper curved groove portion 51 and enters the optical connector storage chamber 52, so that a plurality of optical fiber strands can be congested. Proper wiring is possible. Further, when the connector plug CP is connected to each connector socket CS, the optical connector holding frame 58 of the connector socket CS can be independently pulled out and rotated, so that as shown in FIG. The connector plug CP can be easily connected by pulling it forward by a certain number.

  When the outgoing optical cable ODC including a plurality of optical fiber strands is used as the outgoing cable, the outgoing optical cable ODC is gripped by the outgoing cable gripping portion 27 at the lower rear side of the second tray 5 and wired for leading. In this case, for example, a maximum of four outgoing-side optical cables ODC including 2 to 8 optical fiber strands are gripped in the gripping groove 27a (FIG. 13) of the lead-out cable gripping portion 27 of the second tray 5, Can be used. The outgoing-side outgoing optical cable ODC that has passed through the holding groove 27a of the outgoing cable holding portion 27 and has entered the back side of the second tray 5 peels off the coating layer to expose 2 to 8 optical fiber strands, After the extra length processing of these optical fiber strands in the extra length processing chamber 59, the tip of the optical fiber strand is pulled out from the extra length processing chamber 59 to the front side of the tray through the opening of the tray, and each curved groove of the lower curved groove portion 53 is drawn. The optical connector storage chamber 52 is inserted through 53a.

  A predetermined connector plug CP is connected to the tip of each optical fiber, and each connector plug CP is inserted below the connector socket CS in each optical connector holding frame 58 arranged in parallel in the optical connector storage chamber 52. Connected. As a result, the incoming optical cable IDC including the plurality of optical fiber strands introduced through the introduction cable gripping portion 26 is subjected to the extra length processing, and the optical connector including the connector socket CS and the connector plug CP of the optical connector storage chamber 52. Then, the outgoing optical cable ODC including a plurality of optical fiber strands is led out through the lead-out cable gripping portion 27.

In such connection work, for example, when the drop cable is already connected and wired to some of the connector sockets CS through the cable gripping portion 55 below the gripping frame 54 of the second tray 5, the cable gripping portion 55 is When the locking portion 58b of the optical connector holding frame 58 is unlocked when the drawer is turned forward as shown in FIG. 19, the already connected drop cable DC is connected to the connector socket CS of the optical connector holding frame 58. At the same time, it is pulled out and rotated. For this reason, the connector socket CS in the optical connector holding frame 58 remaining in the optical connector storage chamber 52 of the second tray 5 does not touch the already-dropped drop cable DC or optical fiber strand, and the drop cable or optical fiber. The strands do not interfere with the work and can be easily connected.
(Second usage pattern)
On the other hand, when the drop cable DC connected to the subscriber side is connected to the lower side of each connector socket CS held by each optical connector holding frame 58 in the optical connector storage chamber 52, as shown in FIG. A maximum of eight drop cables DC (single-core fiber cables) are wired so as to be pushed into the lead-out holding grooves 56 of the cable holding portion 55 below the holding frame 54 of the second tray 5. At the tip of each drop cable DC having a single-core optical fiber, the coating layer is peeled off, and a connector plug CP is connected to the tip of the optical fiber. The connector plug CP of each drop cable DC is inserted and connected to the lower side of each connector socket CS held by each optical connector holding frame 58 in the optical connector storage chamber 52.

  In this case, as shown in FIG. 18, the gripping frame 54 can be pulled out and rotated to pull out the cable gripping portion 55. When the locking portion 58b of the optical connector holding frame 58 is unlocked, Since each optical connector holding frame 58 holding the connector socket CS can be pulled out and rotated forward, the connection of the drop cable DC and the connection of the connector plug CP can be easily performed.

  At this time, the already connected drop cable DC is drawn out and rotated together with the connector socket CS of the optical connector holding frame 58. For this reason, the connector socket CS in the optical connector holding frame 58 remaining in the optical connector storage chamber 52 of the second tray 5 does not touch the already-dropped drop cable DC or optical fiber strand, and the drop cable DC or optical fiber is not touched. The fiber strand does not interfere with the work, and the connection work can be easily performed.

  In this way, when there are a plurality of drop cables DC on the lead-out side (single-core fiber cables dropped to the subscriber side) (here, a maximum of eight), each drop cable DC is connected to the cable gripping portion 55 of the second tray 5. The drop cable DC is inserted into the optical connector storage chamber 52 through the lead-out holding groove 56, and each drop cable DC is pushed into the lead-out holding groove 56 of the cable gripping portion 55 at the bottom of the holding frame 54, so that the inside of the storage case 1 can be easily obtained. Can be held.

When connecting the drop cable DC to each connector socket CS in the optical connector holding frame 58, the connector plug CP is connected to the tip of the optical fiber of each drop cable DC, and each connector plug CP is connected to each connector. In this case, the optical connector holding frame 58 holding each connector socket CS can be pulled out from the optical connector storage chamber 52 of the second tray 5 and rotated. The connection work to the connector socket CS can be easily performed.
(Third usage pattern)
On the other hand, when the optical cable introduced into the optical connector storage chamber 52 of the second tray 5 or a part of the optical fiber strand is branched and led out to a plurality of optical fiber strands through the optical splitter module 10, the base tray 2 is used.

  That is, the optical cable on the input side of the optical splitter module 10 is placed below the connector socket CS held by the corresponding optical connector holding frame 58 in the optical connector storage chamber 52. The connector plug CP at the tip is inserted and connected.

  Also in this case, since the optical connector holding frame 58 holding the connector socket CS can be pulled out and rotated independently, the connection work can be easily performed. Further, when the drop cable DC is already connected to the connector socket CS of a part of the optical connector holding frame 58 through the cable gripping portion 55 below the gripping frame 54, the locking portion of the optical connector holding frame 58. If 58b is removed and the gripping frame 54 is rotated so as to be pulled out toward the front, connection work can be performed without touching the already wired optical fiber or optical cable.

  When each of the optical fiber strands branched by the optical splitter module 10 is connected to a drop cable and led out to the subscriber side, the drop cable DC to the subscribing subscriber side is a first cable as shown in FIG. The tray 4 is gripped so as to be fitted in a lead-out grip groove 46 provided in the cable gripping portion 45 below the gripping frame 44 and is pulled into the storage case 1. At the tip of the drop cable DC, the coating layer is peeled off, and the connector plug CP is connected to the tip of the exposed optical fiber, and these connector plugs CP are held in the optical connector holding frame 48 of the optical connector storage chamber 42. Is inserted into the lower part of the connector socket CS to be connected.

  In this way, when the optical fiber strands of the introduced optical cable are branched and wired through the optical splitter module 10 into a plurality of optical fiber strands, the plurality of optical fiber strands on the branch output side of the optical splitter module 10 are Then, after entering the surplus length processing chamber 49 of the first tray 4 above the splitter storage chamber 21 in the base tray 2 and processing the surplus length there, a plurality of optical fiber strands are first passed through the opening at the top of the tray. It passes through each curved groove 41 a of the upper curved groove portion 41 on the front side of the tray 4 and enters the upper portion of the optical connector storage chamber 42.

  Also in this case, the plurality of optical fiber strands are distributed in a plane and wired to the optical connector housing chamber 42 by passing through the respective curved grooves 41a of the upper curved groove portion 41, as described above. Can be wired without causing congestion. Connector plugs CP are connected to the ends of the branched optical fiber strands, and these connector plugs CP are in the optical connector holding frames 48 arranged in parallel in the optical connector storage chamber 42 of the first tray 4. It is inserted and connected to the upper part of the connector socket CS.

  As a result, in the optical cable introduced through the introduction cable gripping portion 26, a part of the optical fiber strands are branched into a plurality by the optical splitter module 10, and the branched optical fiber strands are separated from each light of the first tray 4. Connected to the connector socket CS in the connector holding frame 48 and connected to each drop cable DC of the single-core fiber gripped by the cable gripping portion 45 below the gripping frame 44 via the connector socket CS, the subscriber-side drop cable It is derived from the cable gripping portion 45 as DC.

  As described above, the extra length processing chambers 49 and 59 are provided on the back side of the first tray 4 and the second tray 5 that can be opened and closed, and the optical connector storage chambers 42 and 52 are provided on the front side. The optical connector and the optical connector can be separated from each other, the optical fiber strand and the optical cable are prevented from being congested in the case, and the optical connector can be connected appropriately and efficiently.

  Further, since the optical connector holding frames 48 and 58 for holding the optical connectors are pivotally supported so as to be drawn forward and turnable, when the connector plug CP is inserted into the connector socket CS and connected, the optical connector holding frames 48 are provided. , 58 can be easily pulled out by pulling forward. Further, when the grip frames 44 and 54 are pulled forward, the existing optical connectors held by the optical connector holding frames 48 and 58 and the optical cables connected thereto are pulled forward, so When connecting the connector plug CP or the optical fiber strand to the connected optical connector, the existing optical connector or optical cable does not get in the way, and the connection work can be performed safely without touching the existing optical fiber strand.

DESCRIPTION OF SYMBOLS 1 Storage case 2 Base tray 3 Cover 3a Locking part 4 1st tray 5 2nd tray 10 Optical splitter module 21 Splitter storage chamber 22 Support | pillar 23 Supporting shaft 24 Fitting groove 26 Introduction cable holding part 26a Holding groove 27 Derived cable holding part 27a Grip groove 28 Tube clamp 40 Tray body 40a Hinge part 41 Upper curved groove part 41a Curved groove 42 Optical connector storage chamber 42a Locking convex part 43 Lower curved groove part 43a Curved groove 44 Grip frame 44a Pivot part 45 Cable grip part 46 Deriving grip Groove 47 Upper pivot portion 48 Optical connector holding frame 48a Pivot portion 48b Locking portion 48c Handle portion 49 Extra length processing chamber 49a Circular frame 50 Tray body 50a Hinge portion 51 Upper curved groove portion 51a Curved groove 52 Optical connector storage chamber 53 Lower curved groove portion 53a Curved groove 54 Grip frame 5 cable gripper 56 derives gripping grooves 57 on pivot portion 58 optical connector holding frame 58a pivotally supporting 58b engaging portion 59 extra length handling chamber 59a circular frame

Claims (5)

In an optical connector storage case in which a tray for storing a plurality of optical connectors is rotatably disposed in the storage case,
A base tray having a mounting portion attached to the mounted portion on the back surface and having a splitter storage chamber for storing the optical splitter module inside,
It is attached to the front side of the base tray so as to be openable and closable via a hinge portion, and has a surplus length processing chamber for accommodating a surplus length portion of the optical fiber on the back side and accommodates the plurality of optical connectors on the front side. A first tray having an optical connector storage chamber;
The first tray is attached to the front side through the hinge portion so as to be openable and closable, and has a surplus length processing chamber for accommodating a surplus length portion of the optical fiber on the back side, and the plurality of optical connectors on the front side. A second tray having an optical connector storage chamber for storing
A cover surrounding the first tray and the second tray and attached to the base tray;
The storage case is vertically attached to the attached portion with the hinge axis of the hinge portion being vertical, and the first tray and the second tray are opened and closed forward and backward via the hinge shaft provided at the side end portion. Installed as possible,
In the optical connector storage chambers of the first tray and the second tray, a plurality of optical connector holding frames for fitting and holding the optical connectors are respectively arranged so as to be able to be pulled forward and pivoted through the upper support portions. A holding frame provided with a cable holding portion having a holding groove for drawing out an optical cable at the lower portion is capable of being rotated forwardly through the upper support portion so as to surround the plurality of optical connector holding frames. An optical connector storage case characterized by being arranged.   The upper curved groove portion having a plurality of curved grooves for passing the optical fiber from the surplus length processing portion on the back surface side together with an opening communicating with the back surface side at the upper portion of the tray body of the first tray and the second tray The optical connector storage case according to claim 1, wherein the optical connector storage case is formed corresponding to a position of each optical connector holding frame.   2. The optical connector storage case according to claim 1, wherein an introduction cable gripping part for introducing an optical cable and a lead-out cable gripping part for leading out the optical cable are provided at a lower part on the back side of the tray body of the second tray. .   In the lower part of the tray body of the second tray, a lower curved groove portion having a plurality of curved grooves for passing an optical fiber from an extra length processing portion on the back surface side together with an opening communicating with the back surface side, 2. The optical connector storage case according to claim 1, wherein the optical connector storage case is formed corresponding to the position of the optical connector holding frame.   The optical connector holding frames in the optical connector storage chambers of the first tray and the second tray are each provided with a locking portion that is locked at the optical connector storage position, and the locking portion is the optical connector. 2. The optical connector storage case according to claim 1, wherein the optical connector storage case is formed so as to be locked and unlocked by operating the holding frame.

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