JP3851573B2 - Optical cable communication line termination cabinet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a termination cabinet for attaching termination processing between an outer line and an inner line of an optical cable communication line.
[0002]
[Prior art]
In general, the termination cabinet according to the prior art is composed of a cabinet main body 150 that stores termination processing of the outer line and the inner line of the optical cable communication line 10 and a cover body (not shown) that covers the cabinet main body 150. Further, in the termination cabinet, the optical cable communication line 10 drawn from the outside line and the optical cable communication line 10 drawn from the extension line are inserted into the cabinet body 150 and positioned at both lower ends of the cabinet body 150 in FIG. As shown, a cable insertion portion 140 is provided.
[0003]
The cable insertion portion 140 is for fixing the optical cable communication line 10, and a wedge-shaped insertion base portion 141 is provided integrally with the cabinet body 150, and a wedge piece portion having a shape that fits with the insertion base portion 141. 145 is detachable.
[0004]
The wedge piece portion 145 includes a first wedge piece portion 146 and a second wedge piece portion 147, and insertion grooves 148 through which the optical cable communication line 10 is inserted are respectively provided in the center portions of the opposing surfaces in the axial direction. Yes. In a state where the optical cable communication line 10 is inserted into the one insertion groove 148, the first wedge piece 146 and the second wedge piece 147 are combined, the optical cable communication line 10 is sandwiched, and the wedge surface 1461 of the wedge piece 145 is inserted. The optical cable communication line 10 is fixed to the cabinet body 150 by fitting 1471 into the insertion base 141.
[0005]
However, it has been difficult to insert a plurality of optical cable communication lines into the insertion groove.
[0006]
An optical cable communication line having a diameter smaller than the diameter of the insertion groove has no sticking force even if it can be inserted, and it is difficult to position the optical cable communication line through the termination cabinet.
[0007]
In addition, work has to be performed using dedicated parts and tools for fixing the optical cable communication line, which requires many work steps and costs.
[0008]
Furthermore, since the wedge piece was configured separately from the termination cabinet, it was difficult to handle and could be lost.
[0009]
[Problems to be solved by the invention]
The present invention is an invention made in response to the above circumstances, and an optical cable communication line termination cabinet capable of inserting a plurality of optical cable communication lines into the termination cabinet and fixing optical cable communication lines of different diameters. The purpose is to provide.
[0010]
It is another object of the present invention to provide a termination cabinet for an optical cable communication line that does not use any dedicated members or tools for fixing the optical cable communication line.
[0011]
[Means for Solving the Problems]
In view of the above problems, the present invention employs the following means.
[0012]
That is, according to the first aspect of the present invention, there is provided a termination cabinet having a cable insertion portion for inserting an outer line and an inner line of an optical cable communication line, and for terminating the outer line and the inner line of the optical cable communication line. Is composed of an optical cable core wire, a protective wire that protects the optical cable core wire, and a covering layer that covers the protective wire. The cable insertion portion extends from the cabinet body of the termination cabinet, and a plurality of optical cable communication wires can be inserted. A central groove; a guide groove through which a plurality of protective wires covered with a coating layer sandwiching the central groove can be inserted; and retaining means that are edges formed in the guide groove; and the guide groove is the cabinet An inverted L-shape is formed from one side of the main body toward the inside of the cabinet and communicates with the outside, and the outer wall of the guide groove extends from the cabinet main body. Comprises a first guide extending piece and the second guide extending piece which is set, by cutting into the edge is bent back retaining means protection lines covered by the coating layer, it is inserted in the central groove the protective wire and the retaining means is covered with coating layer bent back plugged into the guide groove and cable communication line, characterized in that it is held back in the cable insertion section.
[0013]
This means eliminates the need for a retaining member or tool dedicated to the optical cable communication line. A plurality of optical cable communication lines are inserted.
Further, the protective line covered with the bent back coating layer bites into the edge, so that the optical cable communication line is reliably prevented from coming off.
[0014]
According to a second aspect of the present invention , in the termination cabinet for the optical cable communication line according to the first aspect, the central groove of the cable insertion portion can be inserted through the maximum diameter of the optical cable communication line.
[0015]
In this means, optical cable communication lines having different diameters are inserted.
[0016]
According to a third aspect of the present invention , in the termination cabinet for the optical cable communication line according to the first or second aspect , in the interior of the cabinet body, a winding for winding up the support portion for attaching the termination treatment and the extra length portion of the optical cable communication line. A termination unit having a take-up portion and a guide portion for guiding an optical cable communication line is installed.
[0017]
With this means, termination of the optical cable communication line is processed inside the cabinet body.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of the inside of a cabinet body according to the embodiment, FIG. 2 is an enlarged perspective view of a cable insertion portion of the embodiment, and FIG. 3 is an enlarged perspective view showing an insertion state of the optical cable communication line of the embodiment. FIG. 5 is an enlarged front view of the embodiment, FIG. 6 is a front view when the protector unit is juxtaposed with the termination cabinet of the embodiment. In addition, the same code | symbol is attached | subjected to the same meaning as a prior art example, and detailed description is abbreviate | omitted.
[0019]
The termination cabinet 100 of the optical cable communication line 10 of the present invention includes a cable insertion part 140 for inserting the outer line and the inner line of the optical cable communication line 10, and performs a termination process between the outer line and the inner line of the optical cable communication line 10. In the termination cabinet 100, the optical cable communication line 10 is composed of an optical cable core wire 12 and a protective wire 13 that protects the optical cable core wire 12, and the cable insertion part 140 extends from the cabinet body 150 of the termination cabinet 100. A central groove 141 into which a plurality of optical cable communication lines 10 can be inserted, a guide groove 142 into which a plurality of protective wires 13 can be inserted across the central groove 141, and a retaining means provided in the guide groove 142. The optical cable communication line 10 inserted into the central groove 141 and the guide groove 142 are bent back and bent back. It is configured to be held back in the cable insertion section 140 by the protection line 13 and is retaining means.
[0020]
In addition, a holder body 160 in which the termination unit 40 to which the termination means 20 of the optical cable communication line 10 is attached is detachably provided in the cabinet body 150 from the cabinet body 150. Inside the holder body 160, a support part 110 for attaching the termination means 20, a winding part 120 for winding up the extra length part 11 of the optical cable communication line 10, and a guide part 130 for guiding the optical cable communication line 10, It is the schematic structure by which the termination | terminus unit 40 which has is installed.
[0021]
The optical cable communication line 10 includes an optical cable core line 12 inserted into the holder body 160, a protection line 13 that protects the optical cable core line 12 disposed in the center, and a covering layer 14 that covers these. The optical cable communication line 10 A notch portion 15 is provided along the axial direction.
[0022]
The protection wires 13 are provided on the left and right sides of the optical cable core 12, and prevent the optical cable core 12 from being externally contacted. The diameter L4 of the protection wire 13 is desirably larger than the diameter L3 of the optical cable core wire 12. In the embodiment, a protective wire having a diameter of the protective wire 13 of 0.4 mm is used, and an optical cable core wire having a diameter of the optical cable core wire 12 of 0.25 mm is used.
[0023]
The holder body 160 has a box shape, for example, a configuration having substantially the same shape as the cabinet body 150. The material used is polyethylene. In addition, two insertion holes 1600 for inserting the optical cable core 12 into the inside are provided at two locations on the left and right sides below the holder body 160. Further, the holder body 160 includes a lid body 162 and a tray 161 stored in the cabinet body 150.
[0024]
The lid 162 is provided so that it can be opened and closed from the tray 161 by a hinge portion 167 provided at one end of the lid 162. The lid 162 is substantially the same as the plate hole 164 provided at both ends of the center of the lid 162 and the guide protrusion 131 provided at the center of the lid 162 and projecting from the center of the tray 161. A fitting hole 165 having a shape and a biting portion 168 provided for fitting with a protruding portion 169 protruding from one end side surface 166 of the tray 161 are configured.
[0025]
The cable insertion portion 140 is for inserting the outer line and the inner line of the optical cable communication line 10 and holding the optical cable communication line 10, and is provided at two locations on the left and right sides below the tray 161. The cable insertion portion 140 includes a central groove 141 between a first extending piece 1430 and a second extending piece 1431 extending from the cabinet body 150, and guide grooves 142 on the left and right sides of the central groove 141. It is the structure formed.
[0026]
The central groove 141 is a groove provided so that a plurality of optical cable communication lines 10 on the inner line side and the outer line side can be inserted. The groove depth H of the central groove 141 is provided at a groove depth larger than the diameter L2 of the optical cable communication line 10. Further, the groove width W1 of the central groove 141 is provided such that the maximum diameter L1 of the optical cable communication line can be inserted.
[0027]
The guide groove 142 has the same depth as the central groove 141 and is arranged symmetrically with the central groove 141 interposed therebetween. The guide groove 142 is, for example, a groove having an inverted L shape from one side surface of the cabinet body 150 toward the inside of the cabinet. Furthermore, in the embodiment, the first guide extension piece 1490 and the second guide extension piece 1491 extending from the cabinet body 150 along the inverted L-shaped guide groove 142 sandwich the central groove 141. It is provided symmetrically. The opposing first and second extending pieces 1490 and 1491 have a gap 1492 that is approximately the same as the groove width W 1 of the central groove 141.
[0028]
Further, the groove width W <b> 2 of the guide groove 142 has such a width that the bent protection wire 13 and the covering layer 14 covering the protection wire 13 can be inserted.
[0029]
Further, the guide groove 142 has retaining means.
[0030]
The retaining means is means for preventing the optical cable communication line 10 from falling out of the cable insertion portion 140 and holding the retaining to the inside of the cabinet. The retaining means is, for example, an edge 1420 formed inside the guide groove 142.
[0031]
The edge 1420 is provided on the first extending piece 1430 and the second extending piece 1431 and is an angle that contacts the inner portion when the optical cable communication line 10 is bent back.
[0032]
Next, description will be given for inserting and fixing the optical cable communication line 10 through the cable insertion portion 140 having the above-described configuration.
[0033]
First, as shown in FIG. 3, the covering layer 14 is cut left and right from the notch 15 of the optical cable communication line 10 to expose the optical cable core 12.
[0034]
Next, the protective wire 13 that is torn to the left and right and covered with the coating layer 14 is bent back, and this state is maintained.
[0035]
Then, in the above state, the optical cable communication line 10 is inserted into the central groove 141, and the protective line 13 covered with the coating layer 14 is inserted along the guide groove 142. At this time, the edge 1420 provided inside the guide groove 142 is bent back, and the protective wire 13 covered with the coating layer 14 can be retained while being bent back. At this time, no external force such as pressing force is applied to the optical cable core wire.
[0036]
For example, when a downward axial tensile force F1 is applied to the optical cable communication line 10 due to an external impact or the like, the protective line 13 covered with the covering layer 14 is connected to the center of the cable insertion part 140 as shown in FIG. As a result, the protective wire 13 covered with the coating layer 14 is bitten into the edge 1420. As a result, not only in a normal insertion state in which the optical cable core wire can be attracted to the cable insertion portion 140 without applying any external force such as a pressing force, but also the tensile force F1 applied to the optical cable communication line 10 due to an external impact or the like. Even in the state in which is added, the optical cable communication line 10 can be fixed inside the cabinet body 150.
[0037]
After the optical cable core wire 12 is inserted through the gap 1492 from the central groove 141, the optical cable core wire 12 is inserted into the cabinet through the insertion port 1600 provided below the tray 161.
[0038]
The support portions 110 are arranged on both sides near the middle side surface of the cabinet body 150, and either one can be selected.
[0039]
One support portion 110 is configured by providing a guide groove 111 and a protrusion 112 at one end of the guide groove 111. The plate portion 24 of the adapter 23 of the termination means 20 is inserted into the guide groove 111 and held and fixed. Connectors 21 and 22 are attached to the adapter 23, and an optical cable communication line 10 drawn from the outside line side and an optical cable communication line 10 drawn to the subscriber side are terminated.
[0040]
The winding unit 120 has a structure in which the optical cable communication line 10 can be wound without being bent or bent, and includes a partition wall 121 and a plurality of protrusions.
[0041]
The partition wall 121 has a constant interval so that the radius of curvature of the optical cable communication line 10 can be maintained so that the optical cable communication line 10 can be wound many times, and is provided in layers from the inner peripheral side to the outer peripheral side. It is the structure which was made.
[0042]
The plurality of protrusions are protrusions provided so that the optical cable communication line 10 to be accommodated does not deviate from the inside of the tray 161. The protrusions are provided in the horizontal direction from the outer peripheral side of the tray 161 and are provided toward the inner peripheral side. 1 protrusion 122 and the 2nd protrusion 123 which stood in the horizontal direction from the inner peripheral side of the tray 161, and was provided toward the outer peripheral side. The first protrusion 122 is provided on the side surface 166 and the partition wall 121 of the tray 161, and the second protrusion 123 is provided on the guiding portion 130.
[0043]
The guide unit 130 is a guide protrusion 131 provided to prevent twisting and twisting of the optical cable communication line 10 wound inside the tray 161 and efficiently store it, and protrudes from the center of the tray 161. For example, it has a substantially elliptical shape. In the drawing, two guide portions 130 are arranged in parallel above and below the center of the tray 161.
[0044]
A mounting method using the termination cabinet 100 configured as described above will be described. The following procedure is an example, and it goes without saying that other procedures may be performed.
[0045]
First, the holder body 160 is fitted into the cabinet body 150.
[0046]
Next, the lid body 162 is opened, the protective wire 13 of the optical cable communication line 10 is bent back, and the optical cable core wire 12 is exposed. The optical cable communication line 10 is inserted into the central groove 141 of the cable insertion part 140, and the bent protection wire 13 is inserted into the guide groove 142. Insertion of the optical cable core 12 and prevention of disconnection of the optical cable communication line 10 are performed.
[0047]
The optical cable core 12 is inserted into the cabinet through the insertion port 1600 after passing through the gap 1492 from the central groove 142.
[0048]
The extra length portions 13a of the two bent protective wires 13 are twisted together and inserted into the metal insertion groove 1531 of the cabinet body 150, and are connected to the ground.
[0049]
Next, the extra length portion 11 of the optical cable communication line 10 is wound around the winding unit 120. Since the winding unit 120 has an appropriate space secured by the partition wall 121 and the first and second protrusions 122 and 123, the winding unit 120 is wound so that the extra length portion 11 of the optical cable communication line 10 is dropped into the space. In addition, the guide unit 130 guides the winding of the optical cable communication line 10 and prevents twisting and twisting. Thereby, the winding process is performed without applying an excessive force to the surplus length portion 11.
[0050]
Next, the end of the extra length portion 11 of the optical cable communication line 10 is attached to the connector 21 side. Then, one end of the other optical cable communication line 10 is attached to the connector 22 side, and the other end is drawn out from the remaining cable insertion portion 140 in the same manner as described above. Then, these connectors 21 and 22 are attached to the adapter 23 and the optical cable communication line 10 is terminated. Then, the plate portion 24 of the adapter 23 is inserted into the guide groove 111 of the support portion 110. Thereby, the fixing of the adapter 23 is completed.
[0051]
In addition, the protector unit 30 can also be juxtaposed to the lid 162 here. A method for attaching the protector unit 30 will be described below.
[0052]
First, the ground plate 31 is attached to the lid 162. The ground plate 31 is fixed by screwing the female fitting portion 320 and the fitting hole 1522 of the cabinet body 150 with the screws 32.
[0053]
At the same time, the protector unit 30 is screwed to the female screw portion 310 of the ground plate 31 with the screw 33. The metal communication line 35 is connected to the terminal 34 of the protector unit 30, and the ground terminal 36 is attached to the ground hole 330 in the center of the ground plate 31. The metal communication line 35 and the wiring 39 of the ground terminal 36 are drawn into the metal insertion groove 1531 of the cabinet body 150.
[0054]
Thereby, the attachment of the termination unit 40 and the protector unit 30 is completed.
[0055]
Next, the lid 162 is closed, and the cover (not shown) is attached to the cabinet body 150. The cover body and the cabinet body 150 are positioned and mounted by a mounting portion or the like provided at an appropriate position on the outer periphery of the side to constitute the termination cabinet 100. Thus, the installation of the termination cabinet 100 is completed.
[0056]
As the optical cable communication line in the embodiment of the present invention, a single optical cable core is used. However, the optical cable communication line is also applied to, for example, an optical cable having two or many optical cables.
[0057]
[Effect of the present invention]
As described above in detail, the present invention has an excellent effect that a plurality of optical cable communication lines can be inserted into the termination cabinet and optical cable communication lines having different diameters can be fixed.
[0058]
Moreover, it has the outstanding effect that it can be stopped by the cable insertion part, without giving external forces, such as pressing force, to an optical cable core wire at all.
[0059]
Furthermore, it has the outstanding effect that a dedicated member and a tool are unnecessary.
[Brief description of the drawings]
FIG. 1 is a perspective view of the inside of a cabinet body according to an embodiment.
FIG. 2 is an enlarged perspective view of a cable insertion portion of the embodiment.
FIG. 3 is an enlarged perspective view showing an insertion state of the optical cable communication line according to the embodiment.
FIG. 4 is a sectional view taken along line AA of the embodiment.
FIG. 5 is an enlarged front view of the embodiment.
FIG. 6 is a front view when the protector unit is juxtaposed with the termination cabinet of the embodiment.
FIG. 7 is an enlarged perspective view of a conventional cable insertion portion.
[Explanation of symbols]
100 Termination cabinet 110 Supporting part 111 Guide groove 112 Protrusion part 120 Winding part 121 Partition 122 First protrusion 123 Second protrusion 130 Guide part 131 Guide protrusion 140 Cable insertion part 141 Central groove 142 Guide groove H Groove height W1, W2 Groove width 1430 First extending piece 1431 Second extending piece 1490 First guide extending piece 1491 Second guide extending piece 145 Wedge piece 146 First wedge piece 147 Second wedge piece 1461 Wedge surface 1471 Wedge surface 148 Insertion groove 150 Cabinet body 1531 Metal insertion groove 160 Holder body 1600 Insertion opening 161 Tray 162 Cover body 164 Plate hole part 165 Fitting hole part 166 Side face 167 Hinge part 168 Biting part 169 Projection part 10 Optical cable communication line L1 Optical cable communication line Maximum diameter L2 Diameter of optical cable communication line 11 Extra length 12 Light Buru core L3 diameter 14 coating layers of surplus portions L4 protection line diameter 13 protected line 13a protection line of the optical cable core wire 20 termination unit 21, 22 connector 23 adapter 24 plate portion

Claims (3)

A termination cabinet having a cable insertion section for inserting an outer line and an inner line of an optical cable communication line, and for terminating the outer line and the inner line of the optical cable communication line. The optical cable communication line includes an optical cable core and an optical cable core. The cable insertion part extends from the cabinet main body of the termination cabinet, and a central groove into which a plurality of optical cable communication lines can be inserted, and a central groove. A guide groove through which a plurality of protective wires covered by a covering layer can be inserted, and a retaining means that is an edge formed in the guide groove;
The guide groove is formed in an inverted L shape from one side surface of the cabinet body toward the inside of the cabinet and communicates with the outside, and an outer wall of the guide groove extends from the cabinet body. It consists of a piece and the second guide extending piece, by cutting into the edge is bent back retaining means protection lines covered by the coating layer, the guide groove and cable communication line to be inserted into the central groove A termination cabinet for an optical cable communication line, characterized in that a protective wire covered with a cover layer inserted and bent back is secured to a cable insertion portion by a retaining means.   2. An optical cable communication line termination cabinet according to claim 1, wherein the central groove of the cable insertion portion is capable of inserting the maximum diameter of the optical cable communication line.   3. The termination cabinet for an optical cable communication line according to claim 1 or 2, wherein inside the cabinet body, a support part for attaching a termination process, a winding part for winding up an extra length part of the optical cable communication line, and an optical cable A termination cabinet for an optical cable communication line, wherein a termination unit having a guiding part for guiding the communication line is installed.

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