JP4252046B2 - Termination cabinet - Google Patents

Description

  The present invention relates to a termination cabinet in which a termination portion of a drop cable drawn from the outdoor side and a termination portion of an indoor cable drawn from inside a house are connector-connected in a cable housing portion.

In recent years, FTTH services for drawing optical cables into houses and apartments and connecting them to devices have rapidly spread.
Under the spread of such FTTH service, as a cable connection structure when drawing an optical cable from outside into a house, a termination cabinet is installed under the eaves of the house and the drop cable is drawn from the outside to the house. There has been proposed a cable connection structure for connecting a connector of an indoor cable connected to a device in a house in a termination cabinet.

  The termination cabinet having such a structure includes a cabinet body in which a cable housing portion is formed, and a lid that covers an open surface of the cable housing portion, and a first surplus length housing a surplus length of a drop cable in the cable housing portion. There has been proposed one that includes a long storage portion, a second extra length accommodation portion that accommodates the extra length of the indoor cable, and an adapter support portion to which an adapter that connects the termination portions of the cables to each other is attached. For example, see Patent Documents 1 and 2).

JP 2003-139966 A JP 2003-143291 A

  By the way, in the laying work of the optical cable, the outdoor construction company that pulls the drop cable from the outdoor aerial optical closure etc. into the termination cabinet and the indoor construction business that runs the indoor cable from the equipment in the house to the termination cabinet. In such a case, the contractors do not touch each other's construction site in order to clarify the responsibilities for subsequent maintenance and repairs. So be careful.

  However, the conventional termination cabinets shown in Patent Documents 1 and 2 have a configuration in which a first extra-length accommodating portion and a second extra-length accommodating portion are provided in an open state in a common cable accommodating portion. When the cabinets are close to each other due to the downsizing of the cabinet, etc., it becomes difficult to construct the wiring work without touching each other's construction site, and at the time of subsequent maintenance or repair There was a risk of incurring troubles over the division of responsibility.

  An object of the present invention is to perform outdoor work for pulling in a drop cable even when the first extra length storage section for the drop cable and the second extra length storage section for the indoor cable are arranged close to each other due to downsizing of the cabinet or the like. The operator and the in-house operator who constructs the indoor cable wiring can construct the wiring work without touching each other's construction site, and share the responsibility at the time of subsequent maintenance or repair. An object of the present invention is to provide a termination cabinet that does not cause trouble.

In order to achieve the above object, the termination cabinet according to claim 1 according to the present invention includes a cabinet body in which a cable housing portion is formed, and a lid that covers an open surface of the cable housing portion, and the cable. A termination cabinet for connecting a drop cable and an indoor cable in a housing portion, wherein the cable housing portion includes a first extra length housing portion for housing an extra length of the drop cable, and an extra length of the indoor cable. A second extra-length accommodating part to be stored is partitioned and formed by a partition wall , and a third extra-length accommodating part for accommodating an extra length of the drop cable introduced from the outside is provided on the back surface of the cabinet body; The third extra length storage part is integrally formed with the back plate part of the cabinet body, and the drop cable is pulled from either the left or right side of the cabinet body. With distributed as possible, and wherein the guide wall for restricting the path of the drop cable is provided.

A termination cabinet according to a second aspect of the present invention is the termination cabinet according to the first aspect, further comprising an inner lid that covers at least the second extra length storage portion.

According to the termination cabinet according to claim 1 of the present invention, even when the first extra length accommodating portion for the drop cable and the second extra length accommodating portion for the indoor cable are disposed close to each other by downsizing of the cabinet or the like. These extra length storage sections are partitioned and independent from each other, so the outdoor construction operator that pulls in the drop cable and the home construction operator that constructs the wiring of the indoor cable must be within the relevant compartment. As long as construction is performed, wiring work can be performed without touching each other's construction site, and there is no influence by touching the construction site of the other business.
Also, when each business operator connects the cable termination to the connector, the adapter is arranged on the partition wall that divides the first surplus storage section and the second surplus storage section. There is no possibility of causing troubles such as touching and removing the connector of the person, and the responsibility demarcation point that determines the sharing of construction responsibility becomes clear.
In addition, the extra length of the drop cable can be installed on the front and back of the cabinet body respectively, and the extra space storage capacity for the drop cable is increased without increasing the occupied space when attaching the termination cabinet to the eaves etc. It is possible to secure a sufficient extra length of the drop cable to be drawn into the main body, thereby facilitating the subsequent maintenance work.

According to the termination cabinet according to claim 2 of the present invention, at least the second surplus length storage portion is further covered by the inner lid, and therefore the partition wall that partitions the first surplus length storage portion and the second surplus length storage portion. It is possible to reliably prevent the extra length portions of the cables from interfering with each other.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a termination cabinet according to the present invention will be described in detail with reference to the drawings.
1 to 3 show an embodiment of a termination cabinet according to the present invention, and FIG. 1 shows a state in which the inner lid of the cabinet body of the embodiment of the termination cabinet according to the present invention is opened. FIG. 2 is an exploded perspective view of the cabinet main body shown in FIG. 1 before the lid is attached, and FIG. 3 is a perspective view of the third extra length storage portion on the back surface of the cabinet main body shown in FIGS. FIG.

  The termination cabinet 1 of this embodiment is used in an FTTH service or the like that draws an optical cable into a house or a condominium and connects it to a device. The cabinet main body 5 in which the cable housing portion 3 is formed, the cable housing It is the structure provided with the cover body 7 which covers the open surface of the part 3, and is attached and used under the eaves etc. of a house.

  In the cable housing portion 3, the termination portion 9 a of the drop cable 9 drawn into the cable housing portion 3 from the outdoor side and the termination portion 11 a of the indoor cable 11 drawn into the cable housing portion 3 from inside the house connect the adapter 13. It is connected via a connector.

In the case of this embodiment, the connector of the termination portion 9a of the drop cable 9 employs a type of connector that can be directly connected to the distal end portion of the drop cable 9, but employs a locally attached SC connector. You may do it.
The connector of the termination portion 11a of the indoor cable 11 may be an on-site SC connector, but a cord with a single-ended connector is fusion-bonded to the tip of the indoor cable 11, or a mechanical splice is attached to the tip of the indoor cable 11. It is good also as a structure.

The cabinet body 5 has a cable housing portion opened to the front surface side by standing up the bottom plate portion 5b and the side plate portion 5c along the outer periphery of the back plate portion 5a whose upper outer periphery is semicircular and whose lower outer periphery is rectangular. 3 is formed.
A first cable lead-in port 21 for drawing the drop cable 9 into the cable housing 3 and a second cable lead-in for drawing the indoor cable 11 into the cable housing 3 are provided near the left and right ends of the bottom plate 5b. A mouth 23 is opened.

  In the case of the present embodiment, the cable housing portion 3 is drawn into the cable housing portion 3 and the first extra length housing portion 15 capable of housing the extra length of the drop cable 9 drawn into the cable housing portion 3. A second surplus length storage portion 17 that can store the surplus length of the indoor cable 11 is partitioned by the partition walls 19a, 19b, and 19c.

The partition wall 19 a forms a substantially groove-shaped cable housing portion 25 that houses the drop cable 9 along a semicircular portion of the side plate portion 5 c erected on the cabinet body 5.
The partition wall 19b is disposed so as to face the partition wall 19a and crosses substantially the center of the cable housing portion 3 to divide the cable housing portion 3 substantially vertically.
The partition wall 19c communicates between the distal end portion of the partition wall 19b and the proximal end portion of the partition wall 19a. The adapter 13 for connecting the terminations 9a and 11a of each cable to the connector is fitted and attached to a mounting groove (not shown) of the partition wall 19c.

The first surplus length accommodating portion 15 is configured by a cable accommodating portion 25 extending in a semicircular arc shape and a lower half region of the cable accommodating portion 3 to which the cable accommodating portion 25 communicates.
The second extra length storage portion 17 occupies a substantially upper half area of the cable storage portion 3.

In the case of the present embodiment, separately from the lid body 7, as shown in FIG. 1, an inner lid 27 that covers at least the open portion of the second extra length storage portion 17 is further provided. The inner lid 27 is hinged on one side to the side plate portion 5c of the cabinet body 5, and is provided so as to be openable and closable with the hinge coupling portion as a fulcrum.
When the inner lid 27 is in a closed state, as shown in FIG. 2, the indoor cable 11 accommodated in the second extra length accommodating portion 17 and its termination portion 11a are covered by the inner lid 27 and touched from the outside. I can't do that.

The lid body 7 includes a surface plate portion 7a that covers the entire front surface side of the cabinet body 5, a side plate portion 7b that extends on the outer periphery of the surface plate portion 7a and covers the outside of the side plate portion 5c of the cabinet body 5, and As shown in FIG. 3, the structure includes a locking flange portion 7c that extends from the tip of the upper side plate portion 7b and engages with the outer surface of the back plate portion 5a.
As shown in FIG. 2, the lid body 7 is placed on the cabinet body 5 from the upper side of the cabinet body 5 and is slid to the lower side of the cabinet body 5 to be engaged and fixed to the cabinet body 5. The

In the case of the present embodiment, as shown in FIG. 3, the back surface of the cabinet body 5 is provided with a third surplus length storage portion 29 that can store the surplus length of the drop cable 9 introduced from the outdoors. Yes.
A drop cable 9 introduced from a position closer to the upper portion of the side plate portion 5c of the cabinet body 5 is dropped in the third extra length storage portion 29 so that it can be pulled out from either the left or right of the lower portion of the cabinet body 5. Guide walls 31a and 31b for distributing the cable 9 to the left and right are provided. The depth dimension of the third extra length storage part 29 (the dimension in the thickness direction of the back plate part 5a) is set to 5 mm or less so that the termination cabinet 1 does not have a very large thickness dimension.

  The guide walls 31a and 31b are integrally formed with the back plate portion 5a of the cabinet body 5, so that the drop cable 9 introduced into the third extra length storage portion 29 is not laid beyond the allowable bending radius of the optical fiber. The path of the introduced drop cable 9 is regulated.

In the case of the termination cabinet 1 described above, the drop cable 9 is passed through the third extra length storage portion 29 formed on the back surface side of the cabinet body 5, and then pulled out outward and then reversed, and then the front side The first cable lead-in port 21 provided in the bottom plate portion 5b is drawn into the cable housing portion 3 and passes around the partition wall 19a through the cable housing portion 25, and then is partitioned by the partition walls 19b and 19c. The termination connector 9 a is connected to the adapter 13 through the extra length storage portion 15.
The indoor cable 11 is drawn into the cable housing part 3 through the second cable lead-in port 23 provided in the bottom plate part 5b of the cabinet body 5, and is separated by the partition walls 19a, 19b, 19c. After the extra length is circulated, the connector 11 a at the termination portion is connected to the adapter 13.

According to the termination cabinet 1 described above, the first extra length accommodating portion 15 for the drop cable 9 and the second extra length accommodating portion 17 for the indoor cable 11 are arranged close to each other due to the miniaturization of the cabinet or the like. However, since each of these extra length storage parts 15 and 17 is partitioned and independent from each other, the outdoor construction company that pulls in the drop cable 9 and the indoor construction company that constructs the wiring of the indoor cable 11 are different. As long as construction is performed within the assigned section, wiring work can be performed without touching each other's construction site, and the construction site of the other business is not affected.
Therefore, each business operator can surely fulfill each other's construction responsibility, and there is no possibility of incurring troubles concerning responsibility sharing at the time of subsequent maintenance or repair.

  Moreover, according to the termination cabinet 1 of the said embodiment, even if each company connects a cable termination part to the adapter 13 with a connector, the connector connection part of the termination part of the cable which an other company shares a construction. However, because it is not necessary to touch the partition wall 19c because it is out of the division that it is assigned to, the risk of accidents such as accidentally removing the connector of the partner is eliminated, and the responsibility demarcation point that determines the sharing of construction responsibility Becomes clear.

  Moreover, according to the termination cabinet 1 of the said embodiment, since the 2nd surplus length accommodating part 17 is further covered with the inner cover 27, between the 1st surplus length accommodating part 15 and the 2nd surplus length accommodating part 17 is divided. Therefore, it is possible to reliably prevent the extra length portions of the cables from interfering with each other beyond the partition walls 19a, 19b, and 19c, thereby further improving the reliability of responsibility sharing.

  Moreover, according to the termination cabinet 1 of the said embodiment, the extra length accommodating part which accommodates the extra length of the drop cable 9 will be each ensured on the front and back of the cabinet main body 5, and when attaching to the eaves bottom etc. Without increasing the occupied space, the extra length storage capacity for the drop cable 9 can be increased, and a sufficient extra length can be secured for the drop cable 9 drawn into the cabinet body 5 to facilitate later maintenance work and the like.

  In addition, the attachment position of the termination cabinet which concerns on this invention is not restricted to the eaves of the house shown in the said embodiment. Since the entire area of the open part of the cabinet body 5 is covered with the lid body 7 and a waterproof effect is exhibited, it is attached on the outer wall surface of the house or at an appropriate place indoors (for example, an equipment room such as a building or an apartment). You can also.

It is a perspective view of the state where the lid was removed from the cabinet body of one embodiment of the termination cabinet concerning the present invention, and the inner lid was opened. It is a disassembled perspective view before attaching a cover body to the cabinet main body shown in FIG. It is a perspective view which shows the 3rd extra length storage part of the back surface of the cabinet main body shown in FIG.1 and FIG.2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Termination cabinet 3 Cable accommodating part 5 Cabinet main body 7 Cover body 9 Drop cable 11 Indoor cable 13 Adapter 15 1st extra length accommodating part 17 2nd extra length accommodating part 21 1st cable lead-in port 23 2nd cable lead-in port 25 Cable housing portion 27 Inner lid 29 Third extra length housing portion 31a, 31b Guide wall

Claims (2)

A cabinet body in which a cable housing portion is formed, a lid that covers an open surface of the cable housing portion, and a termination cabinet that connects a drop cable and an indoor cable in the cable housing portion,
In the cable housing portion, a first extra length accommodating portion that accommodates an extra length of the drop cable and a second extra length accommodating portion that accommodates an extra length of the indoor cable are partitioned and formed by a partition wall , and The back surface of the cabinet body is provided with a third surplus length storage portion for storing the surplus length of the drop cable introduced from the outside, and the third surplus length storage portion is integrally formed with the back plate portion of the cabinet body. The termination cabinet is provided with a guide wall for distributing the drop cable so that the drop cable can be pulled out from either of the left and right sides of the cabinet body and restricting the path of the drop cable . The termination cabinet according to claim 1, further comprising an inner lid that covers at least the second extra length storage portion.

Images