JP3835886B2 - Optical cable connection storage cabinet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical cable connection box used for connection or branch wiring of an optical cable having an optical fiber core and a tension member. Specifically, each optical fiber cable such as an optical cable including a tension member is connected to a case main body, branched, and stopped. The present invention relates to an optical cable connection portion storage cabinet that is held in a wearing state.
[0002]
[Prior art]
Generally, when connecting an optical fiber with an optical fiber core and a tension member, it is indispensable to fix the tension member. In addition , in the branching / retracting connection of the optical fiber, there is a margin in the core in anticipation of connection failure. Therefore, it is indispensable to perform the extra length treatment, and it is necessary to protect the core wire including these connecting portions. For this reason, conventionally, a large number of storage trays for storing the connection portion and the extra length of the core wire are used after the core wire is connected, and a dustproof and waterproof cover is used.
[0003]
[Problems to be solved by the invention]
However, the conventional optical cable connection box requires a special wire connection processing member that uses a special case, cover, and sheet, has many assembly parts, is difficult to hold the cover, and handles any core wire. It is also a problem in terms of safety of wire connection and workability, handling and structure are complicated, and the cost is high. In addition, since the internal space is small, the extra cable length is difficult to store and the cable connection workability is low. was there.
The present invention intends to eliminate these conventional drawbacks, and can easily open and close the case body, replace and expand the core wire connection, is easy to handle, can perform safe connection processing work, The purpose of the present invention is to provide a low-cost cabinet for storing optical cable connections, which can be greatly improved in performance, can be accommodated in a state where the core wire connection and the extra length are completely separated, and no extra storage member is required. It is what.
[0004]
[Means for Solving the Problems]
The present invention includes a connection module A including a core wire connection portion of an optical cable, and a core wire surplus length storage portion that stores a surplus length of the core wire extending from the core wire connection portion, and a termination module B. The cabinet is provided with a cable holding bracket 5, 5 ₁ , 6 that is provided in the case body 3 so as to be openable and closable, and that holds the cable and tension member of the optical cable introduced into the case body 3 and reaching the core wire connection portion. Te, a plug accommodating tray 13 with a plug 13 ₁ to the case body 3, to which a termination module B comprising polymerizing the deployed slack storage tray 14. pivotably by each tray independently support shaft 15 provided with, each support includes a support shaft 15 to the case body 3 substantially U-shaped cross section of the support plate of the frame 32 provided rotatably in a hinge portion 31 fixed by a bracket 30 to the It is obtained by placing the said termination module B along.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The optical cable connection portion storage cabinet according to the embodiment of the present invention can be opened by inserting a key into a lock portion in the lid case and turning it so that the lock can be released and the lid case can be slid to fit and remove. The cable is clamped to the cable gripping bracket, and the cable tension member is fixed to the tension member gripping part. The drawn core wire is connected to the internal wiring material, and the core wire to be branched is passed through the core wire locking part. It is routed in the case body. Inside the cabinet, the core wire connecting part is housed, and when the frame on which the termination module is placed is pulled down forward with the rotating operation piece, the frame removed from the elastic support can rotate around the hinge part, Rotate the plug storage tray or extra length storage tray around the support shaft in the horizontal state or in the vertical state outside the case body to expose the inside, and work on the termination module depending on the mounting state of the cabinet The termination module can be deployed and placed in a state that is easy to work without being restricted in direction, and the termination module is placed along a support plate having a substantially U-shaped cross section, so that the plug storage tray and the extra length storage tray Each tray can be safely protected and stored, and the termination module can be rearranged in a stable and reliable manner to ensure safe handling and easy operation. Connection work and servicing work by easily and is plug can be easily, cord extra length is housed in housed in slack storage tray engages the elastic support piece causes the frame to return to the original fixed Since it is possible to easily replace and expand the core wire connection, the extra length storage pocket does not apply extra external force to accommodate the extra length of the core wire, it can be easily recognized and has good discrimination, and any heart Wire handling is easy and easy to handle, each core wire extra length is securely stored and held, and the core wire can be fixed with one touch, making connection and branching work safe and easy.
After this core processing is completed, the lid case is closed to the case body, and the lid is locked to the case body by the lock part. Can be stored and protected.
[0006]
【Example】
1 to 4, an optical fiber cable connection portion storage cabinet (hereinafter abbreviated as “cabinet”) detachably supports an optical cable core connection portion. A case main body 3 including a connection module A including a support portion 1 to be connected, a core wire surplus length storage portion 2 for storing a surplus length of the core wire extending from the core wire connection portion, and a termination module B, and the case The main body 3 includes a lid case 4 that can be freely opened and closed. The pull-in cable gripper 5 that holds the optical cable and the tension member of the optical cable C that is introduced into the case main body 3 and reaches the core wire connection portion is pulled down. be those equipped a cable grippers 5 ₁ and the floor cable gripper 6, the plug housing tray 13 with a plug 13 ₁ to the case body 3, and polymerized deployed to It provided with pivotably by the support shaft 15 of the termination module B having a length storage tray 14. independently each tray, respectively, pivot at the hinge portion 31 fixed by a bracket 30 to support shaft 15 in the case body 3 The termination module B can be led out of the case body in a frame 32 provided freely.
[0007]
In this case, the plug storage tray 13 and the extra-length storage tray 14 of the termination module B are each placed on the frame 32 so as to be independently pivotable on the support shaft 15.
The frame 32 uses a support plate having a substantially U-shaped cross section, and the termination module B is fixed along each support plate, and is detachably disposed on an elastic support piece 33 fixed to the case body. It can be rotated and fixed together.
[0008]
Incidentally, the frame 32 is a one provided with a rotating operating handle 34, is as a developing easily configured in a horizontal state outside of the case body 3.
Furthermore, the termination includes a lid 14 ₁ to slack storage tray 14 as a module B, each tray by heavy loading place the該余length storage tray 14 on the plug housing tray 13 is internal to maintain Closed Useful for protection.
[0009]
The cable gripping tool faces the cable routing hole of the case main body 3 and is attached with the tightening screw 7. However, the cable gripping piece 16 and the tension member fixing piece 17 are protruded and pulled down from the cable gripping tool 5. cable gripper 5 ₁ Tonishi, are to simplify the clamping of the floor cable gripper 6 respectively between both cable gripper 5,5 ₁ by removably deployed in the mounting screws 7 optical cable.
[0010]
As the connection module A, as shown in FIG. 4, a core wire winding portion that becomes the support portion 1 of the connection portion and the core wire extra length storage portion 2, a tray 20 having a cable presser 28 at the cable outlet, and the tray A cover 21 covered with 20 includes a cable clamp 22, an opening 23, and a cable winding piece 24 so that the cover 21 can be fitted to the tray 20 by a locking portion 25 and an attachment tongue piece 26. 27 is fixed to the case body 3 and used.
[0011]
Further, a cable clamp 61 having a cable presser having a substantially E-shaped cross section is fastened to the floor cable gripping tool 6 with a screw. The cable clamp 61 is preferably configured to be able to grip a plurality of floor cables collectively.
[0012]
In the specific example of FIG. 5, the case body 3 is provided with a termination module B that is rotatable and detachable, and the termination module B is attached to a plug storage tray 13 and an extra-length storage tray 14. be those separated into two upper and lower stages draw pivoted to the case body 3 outside the connection structure can be pivoted in mutually supporting shaft 15, connected to inspection and by opening the lid of the core wire excess length accommodating a plug 13 ₁ The work can be easily performed, and the holding core wire storage sheet 11 is attached if necessary.
[0013]
Incidentally, core wire comprise a tie 10, further wherein the pull cable gripper 5 in a grounded 9 between the said case body 3 connecting module A and debit cable gripper 5 ₁ and the floor cable gripper 6 It is preferable to use the one in which the tension member clamp is fitted to the tension member fixing piece 17. The connection module A includes a cable clamp 22 having a cable insertion groove, a surplus pocket portion 19 that accommodates the core wire extending from the cable clamp 22 in a circle shape through a connection portion that holds the core wire in the support portion 1, and the surplus What is provided with an opening / closing door provided in the long pocket portion 19 is detachably provided on the case body 3 by a bracket 27.
The tension member fixing piece 17 includes a guide holding piece that can insert and remove the ring fixed to the cable, so that the insertion and removal of the cable can be simplified.
Further, in the case of a lead-in cable, it is preferable that the tension member is directly screwed to the fixing portion with a screw to which the fixing ring is attached with the ground 9 in order to take the ground.
[0014]
The cable clamp 22 provided in the connection module A is composed of a plurality of comb-like partition plates erected at a predetermined interval or a group of support members erected at intervals. It is provided facing the opening 23, and can be supported by vertically inserting the core wires into the gaps formed between the partition plates from above.
[0015]
The cabinet is formed by resin injection molding or the like, and a cable introduction wiring hole is formed. A dustproof cover is fitted into the cable wiring hole, and a plurality of optical fiber core wires and tension members are provided from here. introducing an optical cable, Yes to allow fixing to the case body 3 with end fittings 5,5 _1, slack storage tray of the plug housing trays 13 and core wire extra length with plug 13 ₁ and / or connector for optical cable connections 14 and a connection module A are housed.
[0016]
Incidentally, the termination module B is a hinge portion 31 is freely be engaged detachably furnished rotate the case body 3, slack storage section of the wire aligning a inner lid 36 ₁ of the protective cover with a lock 35 Is sure.
Further, although the connection module A is detachably screwed to the case body 3, the connection module A may be fitted with a fitting locking part formed corresponding to the case body wall and the extra length storage part wall. A mounting hole may be used.
[0017]
In the optical cable connecting storage case according to this embodiment, when connecting the branch optical cable and the lead-in optical cable, first, the case body 3 of the cabinet is fixed to the outer wall surface of the building using a screw 36 or the like, and the branch optical cable is connected. And the drawing optical cable through the wiring groove, for example, the branching optical cable is passed through one wiring hole and the drawing optical cable is passed through the other wiring hole. And the optical fiber core wire of each optical cable is pushed and fixed to the cable clamp 22 or the core wire binding tool 10 and led to the connection portion support portion 1 and the extra length storage portion 2 of the connection module A and connected by the connector, and the extra length is obtained. Hold the part wound.
[0018]
Then, the case main body 3 is covered with the lid case 4 and closed to be locked by the lock portion 29 to maintain the closed state. When the lid is opened, the lid case 4 can be opened by inserting a key into the lock portion 29 and turning 90 degrees, and the lid case 4 can be removed from the case body 3 and wiring work inside the case body 3 can be facilitated.
[0019]
The inner wiring material termination module B is a tape having a ferrule at one end branched into a number by the single-core separation unit, a plug 13 ₁ of SC Simple plug or MPO simple plug to the other end of each single fiber It is convenient to use a ready-made conversion core wire provided, and it is also possible to use a ready-made core wire provided with an SC connector or an MPO connector at one end as a wiring material in the connection module.
Furthermore, each termination module B can be individually attached to and detached from the bracket with a mounting member, and facilitates the wiring inspection processing work, and is also supported when fixed and facilitates handling of arbitrary core wires. In addition, it can be removed and removed as needed, making it easy to understand at a glance and providing good identification, and the optical fiber core of each optical cable is led to the cable winding / connection part, and the extra length is removed. Since it is wound and held in the core wire storage section, the wiring processing work can be facilitated, and switching and replacement and expansion can be performed by a simple operation simply by inserting this module.
[0020]
Exchange and expansion of the connector is that you had to allow a simple operation of differentially cable and connectors write Mudake, moreover Yes to allow the easy handling of any core, core extra length pockets It can be accommodated by the part, and can be distinguished easily with a wiring form that can be seen at a glance by opening the door.
[0021]
【The invention's effect】
The present invention includes a connection module A including a core wire connecting portion of an optical cable and a core wire surplus length storage portion that stores a surplus length of the core wire extending from the core wire connecting portion, and a termination module B. A cabinet provided with a cable gripping fitting for holding a cable case and a tension member of an optical cable that is provided in the case main body so as to be opened and closed, and is introduced into the case main body and reaches the core wire connecting portion, and includes a plug in the case main body and a plug housing tray, the termination module B comprising a slack storage tray polymerized deployed provided with pivotably by each tray independently shaft thereto, are fixed by bracket support shaft on said case body a hinge portion by providing the frame of the schematic sectional provided rotatably U-shaped support plate along the support plates and placed the termination module B was, core wire contact Can be easily replaced and expanded, the accommodation of the extra length of the core is simplified, the wiring can be understood at a glance, the discrimination is good, and the termination module can be fixed and deployed to handle any core. It is easy to handle, can perform safe connection processing work, and the plug storage tray and extra length storage tray can be independently deployed on the horizontal or vertical surface with respect to the case body, so it can be converted into a termination module depending on the mounting state of the cabinet The termination module can be unfolded and placed in a state where it is easy to work without being restricted by the work direction, and the termination module is placed along a support plate with a substantially U-shaped cross section. Each tray of the storage tray can be safely protected and stored, and the termination module can be rearranged stably and surely to improve handling safety and work. With securing have state improves the easy and workability by a large margin, to the and the excess length core wire connection portion is housed in a completely separated state, it is sufficient only fixed cable and cord connection portion, extra This method has a practical effect such that a large storage member is not required and can be produced at low cost.
Further, in the present invention, the space is effectively used by gripping the cable inside the cabinet and ensuring the cable wiring, so that compactness and workability can be improved, the switching operation can be easily performed, and the core wire and The cable gripping can be greatly improved with a minimum tool, and the extra cable length can be stored easily, and the cable can be securely and securely wired, the configuration is simple, and the optical cable connection storage cabinet is easy to handle and inexpensive. it can.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 shows an embodiment of the present invention and shows the inside thereof, (a) is a front view thereof, (b) is a cut plan view, (c) is a cut left view, and (d) is a cut right view. FIG.
2 shows the termination module of the example of FIG. 1, wherein (a) is a front view of the unfolded state, and (b) is a front view of the separated state.
3 shows a frame for the termination module in the example of FIG. 1, wherein (a) is a front view thereof, (b) is a left side view, (c) is a bottom view, and (d) is a right side view. .
4A and 4B show a connection module used in the present invention, in which FIG. 4A is a front view, FIG. 4B is a bottom view, and FIG.
5A and 5B show a state in which a lid case is cut out in another example used in the present invention, in which FIG. 5A is a front view showing the inside by cutting the lid case, FIG. 5B is a partially cutaway plan view, and FIG. ) Is a partially cutaway side view.
[Explanation of symbols]
A connection module B terminated module C optical cable <br/> 1 support 2 core wire excess length storage section 3 case body 4 lid case 5,5 ₁ cable clamping hardware 6 floors cable gripper 9 ground 10 core binder 11 Retention core storage sheet 12 Hinge portion 13 Plug storage tray 13 ₁ Plug 14 Extra length storage tray
14 ₁ Opening / closing lid 15 Support shaft 16 Cable gripping piece 17 Tension member fixing piece 29 Lock part 30 Bracket 31 Hinge part 32 Frame 33 Elastic support piece
34 rotation operation handle 61 cable clamp

Claims (3)

The case body 3 includes a connection module A including a core wire connection portion of the optical cable and a core wire surplus length storage portion that accommodates a surplus length of the core wire extending from the core wire connection portion. Which is openable and closable, and is provided with cable gripping metal fittings 5, 5 ₁ , 6 for holding the cable and tension member of the optical cable C introduced into the case body 3 and reaching the core wire connecting portion, a plug housing tray 13 with a plug 13 ₁ in the case main body 3, provided with pivotally the termination module B comprising polymerizing the deployed slack storage tray 14. the support shaft 15 independently each tray respectively thereto, includes a support shaft 15 to the case body 3 substantially U-shaped cross section of the support plate of the frame 32 provided rotatably in a hinge portion 31 fixed by a bracket 30 to along the supporting plates Optical cable connecting section cabinet with, characterized in that the stationary the termination module B. The cabinet according to claim 1, wherein the frame (32) is detachably disposed on an elastic support piece (33) that fixes the termination module (B) and is fixed to the case body (3). The cabinet according to claim 1 or 2, wherein the frame (32) is provided with a rotation operation handle (34) and can be unfolded horizontally outside the case body (3).

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