JPH1010333A - Cabinet for housing optical fiber cable connection part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable connection part housing container with high workability capable of housing relatively a large number of cable connection parts. SOLUTION: This cabinet is provided with a support part 11 detachably supporting the cable connection part, an extra length housing part 16 housing the extra length of the optical fiber prolonging from the connection part, a cabinet body 1c covering the periphery of the support part 11 and the extra length housing part 16 and an engagement means 22 engaging the optical fiber led into the cabinet body 1 and led to the extra length housing part 16 with a prescribed position in the cabinet body 1, and the left/right both side surfaces and the front of the cabinet body 1 are made freely opened/closed doors 2 through hinges provided on the rear parts of the cabinet body 1. Further, the extra length housing parts 16 are provided on left/right of the support part 11, and the means 22 are provided on left/right of the extra length housing parts 16, and as the means 22, a magic fastener holding an optical fiber between two pieces of cloth made attachable/detachable through mutual contact surfaces and engaging with it is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for accommodating a connection portion of an optical fiber cable.

[0002]

2. Description of the Related Art Conventionally, when an optical fiber cable (hereinafter abbreviated as "cable") is connected outdoors, for example, the optical fibers are connected to each other in a container generally called a closure installed on a telephone pole or the like. To protect the cable connection.

[0003]

However, since the closure is small in size, the number of connectable cables is small, and there has been a problem that it is difficult to cope with the recent increase in the amount of cable laid. In addition, since the internal space is small, there is a problem that it is difficult to store the extra length of the optical fiber and the workability when connecting the cable is low.

The present invention has been made in view of the above circumstances, and relates to a container for accommodating a cable connection portion, and in particular, to provide a container capable of accommodating a relatively large number of cable connection portions and having high workability. For that purpose.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a cabinet for accommodating a connection portion of an optical fiber cable, the support portion removably supporting the connection portion, and an optical fiber extending from the connection portion. An extra length storage portion for storing the extra length, a cabinet body that covers the periphery of the support portion and the extra length storage portion, and the optical fiber that is introduced into the cabinet body and reaches the extra length storage portion in the cabinet body. Locking means for locking at a predetermined position of the cabinet, wherein the extra length storage portion is provided on the left and right sides of the support portion, and the locking means is provided on the left and right sides of the extra length storage portion, and the cabinet The left and right side surfaces and the front surface of the main body are doors that can be opened and closed via hinges provided at the rear part of the cabinet main body, and the locking means is detachable through mutual contact surfaces. It is set to its features in that the fabric pieces are magic fastener for locking by sandwiching the optical fiber.

Here, it is desirable that at least one of the contact surfaces supports an elastic piece, such as a sponge piece, for preventing movement of the optical fiber sandwiched between the magic fasteners.

The cloth piece is preferably composed of a fixing piece fixed at the predetermined position, and a plurality of strip-like strips detachably attached to the fixing piece.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the drawings. FIG. 1 shows an external view of a cabinet for storing an optical fiber cable connection portion (hereinafter, abbreviated as a cabinet) according to the present invention. In the figure, reference numeral 1 denotes a cabinet main body. The cabinet main body 1 is roughly composed of a pedestal 1a, a roof part 1b covering the upper side, and a wall part 1c covering the side. Is a door 2 which can be opened and closed in a double-opening manner from side to side via a hinge (not shown) provided at the rear of the cabinet body 1. Here, in order to ensure airtightness inside the cabinet when the cabinet is installed outdoors or the like, the door 2 is sealed when closed.

Reference numeral 3 denotes a lock mechanism for preventing the closed door 2 from being released, and reference numeral 4 denotes a bridge between the pedestal 1a and the roof 1b on the front side of the cabinet body 1 so as to cover the roof 1b. This is a stay that supports the cabinet body 1 and prevents a decrease in the strength of the cabinet body 1 due to the formation of the door 2. This stay 4
Is detachably provided on the pedestal 1a through a hole 5 formed in the pedestal 1a.

Reference numeral 6 denotes a plurality of pipes erected on both right and left ends of the pedestal 1a.
Are respectively opened on the upper surface of. Reference numeral 7 denotes a pair of left and right plates erected on the pedestal 1a in the vicinity of the pipe 6, from which a pair of upper and lower support arms 8, 9 project above the pipe 6, respectively.

Reference numeral 11 denotes a supporting portion for detachably supporting the cable connecting portion. As shown in FIG. 2, the support portion 11 has a plurality of partition plates 13 erected at the front end of an arm 12 projecting forward from a wall 1c on the back side of the cabinet through a gap having a predetermined width. On the left and right sides of the partition plate 13, there are provided guide portions 14 that hang down gradually as the distance from the partition plate 13 increases.

Reference numeral 15 denotes a pair of plates, which protrude vertically from the wall 1c on the back side of the cabinet on the left and right sides of the support portion 11, respectively.
The extra length storage section 16 is supported. This extra length storage section 16
As shown in FIG. 2, a rectangular frame-shaped holder 17 provided on each of the right and left lower sides of the guide plate 14 and a tubular extra-length storage body detachably supported by the holder 17 are provided. 18 and the schematic configuration.

The extra length storage body 18 is formed in a thin sheath shape having a U-shaped bottom surface, and the width of the space formed therein (the symbol W in the figure) is smaller than the minimum bending diameter of the optical fiber. It is set large. Further, the extra length storage body 18 is supported by the holder 17 by inserting the extra length storage body 18 into the holder 17 from above with the wide side surface facing in the front-rear direction. Further, the number of extra-length storage members 18 that can be supported by the holder 17 is the same as the number of connection portions that can be supported by the support portion 11.

Reference numeral 17a denotes a concave portion formed at both left and right ends of the upper end of the holder 17, and the concave portion 17a
8 and the projection 18a protruding left and right from the upper end,
The extra length storage body 18 is supported at a predetermined position in the holder 17. Further, a semicircular guide portion 19 protruding upward is provided on the side of the holder 17 opposite to the support portion 11, that is, on the side surface on the locking means 8 side. Reference numeral 20 is
The guide plate is provided upright before and after the guide portion 19 to prevent the optical fiber from dropping from the guide portion 19.

Here, in order to improve the workability at the time of connecting the cable, the support portion 11 and the extra length storage portion 16 are arranged so as to be slightly inclined so that the upper portions thereof face the front side of the cabinet. On the other hand, the reference numeral 21 projects forward of the cabinet so as to be sandwiched between the extra length storage bodies 18 from left and right,
This is a bar for hanging an optical fiber during connection work or unconnected.

Reference numeral 22 denotes locking means provided on the side of the plate 15 facing the door 3 side. The locking means 22 is a magic fastener made of cloth pieces detachable via their contact surfaces, and these cloth pieces are fixed pieces 22a fixed to the side surfaces of the plate 15;
It is composed of a plurality of strip-shaped strips 22b detachably attached to the fixed piece 22a. In addition, the release piece 22
An elastic piece 23 such as a sponge piece is provided on the contact surface b.
Has been fixed.

When storing the cable connection portion in the cabinet having the above configuration, first, the door 3 is opened, and the stay 4 bridged between the pedestal 1a and the roof portion 1b is removed. Next, cables (not shown) into which the input side and output side optical fibers 31 are respectively inserted are introduced into the cabinet from below through the left and right pipes 6, respectively.
The upper end of the cable is clamped by the support arm 8. The optical fiber 31 led out of the cable is bundled by the support arm 9 in plurals.

Further, as shown in FIG.
After vertical is disposed on the base end portion on the fixing piece 22a of the locking means 22, as shown in FIG. 3 arrow P _1, on a fixed piece 22a, installing the engaging piece 22b vertically. Then, the locking piece 22
a and the peeling piece 22b are in close contact with each other, and the elastic piece 23 fixed to the contact face of the peeling piece 22b abuts against the optical fiber 31 from the side, and as a result, the fixed piece 22a and the peeling piece 22b The movement of the optical fiber 31 sandwiched between
The optical fiber 31 is blocked by contact with the elastic piece 23,
Is locked between the fixing piece 22a and the peeling piece 22b.

On the other hand, the optical fibers 31 are connected to each other by inserting the tip of the optical fibers 31 led out to the center of the cabinet into the optical fiber connecting case 32 from the left and right. Then, as shown in Figure 2 in the arrow P _2, in a state where the optical fiber 31 was suspended in the left and right respectively, the case 32 by inserting from above vertically into the gap formed between the partition plate 13, the case 32 is supported by the support portion 11.

Further, the excess length of optical fiber 31 between the locking means 22 and the case 32, as shown by arrow in FIG P _3, each optical fiber 31 inserted in the same case 32, guide portions 14 , 19 from above along the extra length storage body 18
By being inserted into the inside, it is stored in the extra length storage section 18. When the storage of the cable connection portion is completed, the stay 4 is returned to the original position, and the door 3 is closed.

Here, as shown in FIG. 1, the cabinet according to the present invention can be provided with a support portion 11 and a surplus length storage portion 16 capable of storing a large number of cable connection portions as shown in FIG. ing. Therefore, according to the cabinet of the present invention, a relatively large number of cable connection portions can be stored as compared with the conventional closure. In addition, since the door 3 is formed on both left and right side surfaces and the front surface of the wall 1c, the door 3
By opening, the left and right side surfaces and the front surface of the wall portion 1c are released, and high workability is obtained.

Further, the optical fiber 31 led out from the cable 32 is fixed to the fixing piece 22a of the locking means 22 and the peeling piece 22.
b, the optical fiber 3 in the cabinet
1 is easily supported. In addition, due to the elasticity of the elastic piece 23, even when the optical fiber 31 is brought into contact with the elastic piece 23, the stress acting on the optical fiber 31 can be reduced. Note that the elastic piece 23 may be provided on the contact surface of the fixed piece 22a instead of the peeling piece 22b.

Further, the case 33 is inserted into the gap between the partition plates 13 from above, and the extra length of the optical fiber 31 is inserted into the extra length storage body 18 from above along the guide portions 14 and 19. The cable connection portion can be easily stored. In addition, since the upper portions of the support portion 11 and the extra length storage portion 16 face the front side of the cabinet, the above operation is further facilitated.

On the other hand, since the extra-length storage members 18 are detachably supported by the holder 17, the necessary minimum number of extra-length storage members 18 are stored in the holder 17 in accordance with the number of cable connections to be stored.
It may be supported inside. As a result, the extra length storage body 18
Can be used efficiently without waste.

[0025]

As described above, according to the cabinet of the present invention, it is possible to store a relatively large number of cable connection portions, and it is possible to improve the workability.

[Brief description of the drawings]

FIG. 1 is an upper perspective view showing the structure of a cabinet according to the present invention.

FIG. 2 is an upper perspective view showing a structure of a support portion and a surplus storage portion used in the cabinet according to the present invention.

FIG. 3 is a diagram showing a structure of a locking means used in the cabinet according to the present invention.

[Explanation of symbols]

1 ... cabinet body, 2 ... door, 11 ... support,
16 extra length storage section, 22 locking means, 22a fixing piece, 22b peeling piece, 23 elastic piece, 31 optical fiber

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshikazu Nomura 1440 Mutsuzaki, Sakura City, Chiba Prefecture Inside Fujikura Sakura Plant

Claims (4)

[Claims] 1. A cabinet for accommodating a connection portion of an optical fiber cable, a support portion for detachably supporting the connection portion, and an extra length storage for storing an extra length of an optical fiber extending from the connection portion. A cabinet body that covers the periphery of the support portion and the extra length storage portion; and a member that locks the optical fiber that is introduced into the cabinet body and reaches the extra length storage portion at a predetermined position in the cabinet body. Locking means are provided on the left and right sides of the support portion, and the locking means are provided on the left and right sides of the extra length storing portion, and the left and right side surfaces and the front surface of the cabinet body are provided. A door which can be opened and closed via a hinge provided at a rear portion of the cabinet main body, and wherein the locking means has the optical fiber between the pieces of cloth which are detachable via their contact surfaces. Optical fiber cable connection cabinet with which it is a magic fastener for locking across the bus. 2. The light according to claim 1, wherein an elastic piece for preventing movement of the optical fiber sandwiched between the cloth pieces is supported on at least one of the contact surfaces of the magic fastener. Cabinet for storing fiber cable connections. 3. The cabinet according to claim 2, wherein said elastic piece is a sponge piece. 4. The apparatus according to claim 1, wherein the cloth piece is composed of a fixed piece fixed at the predetermined position and a plurality of strip-shaped strips detachably attached to the fixed piece. The cabinet for accommodating an optical fiber cable connection part according to any one of claims 1 to 3.