JP3047380B2 - Communication cable distribution box device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to install various equipment such as an amplifier and an emergency power supply for securing transmission quality when grounding various communication cables such as optical fibers. That are ventilated,
The present invention relates to a communication cable distribution box device that ensures ease of maintenance and the like and that takes into consideration systematicness corresponding to the configuration of a communication line system.

[0002]

2. Description of the Related Art In recent years, with the recent so-called multimedia and personalization of information and communication, communication facilities have become enormous, and in response to the beautification of the urban environment and preservation of the natural environment, The various equipment and facilities installed on the ground are gradually becoming underground, and the underground maintenance is being actively developed.

On the other hand, amplifiers are provided in communication cables at regular intervals in order to eliminate the attenuation of the transmission signal, and to cope with a power outage of a power source for operating the amplifiers and the like. Various devices such as an emergency power supply are provided. When communication cables and the like are in an aerial wiring form, these various devices are naturally cooled because they are held in the air by telephone poles and the like, and their maintenance is relatively easy. It was safe because there was nothing.

[0004]

However, when underground maintenance of a communication line using such a communication cable is performed, the above-mentioned various devices attached to the communication cable are used to facilitate construction, inspection, and other maintenance work. In addition, it is installed on the ground at the terminal of the underground track, at the middle, etc. However, if these various devices are exposed as they are, they may hinder traffic, cause deterioration of the urban environment, or become dangerous.

In order to prevent this, a stand-type box device called a pedestal box is arranged just above a handhole or the like provided in the ground, and the various devices described above are arranged inside the box device. These inspections, maintenance and other tasks are facilitated, and the urban environment is beautified.

However, when various devices are arranged in such a box device, the box device itself is exposed to solar radiation, and the internal temperature becomes high due to insufficient internal ventilation. The feeder was severely degraded and could be destroyed. In addition, since the box device itself is as small as possible, it is relatively difficult to install various devices to be disposed inside, and there is not enough room internally. Maintenance and inspection were also very troublesome. Moreover, on a communication trunk line, although it is necessary to appropriately combine amplifiers, emergency power supplies, distributors, and other various devices and distribute them in the box device due to the branch wiring form, etc. The device itself was not configured to be sufficiently capable of these.

Accordingly, the present invention has been made in view of the above-mentioned various circumstances, and when the above-mentioned various devices attached to a communication cable are installed on the ground, the inside of a box body that covers them is installed. Ventilation, easy maintenance, easy inspection, etc. can be ensured. Especially, the internal emergency power supply prevents high temperature, enables stable operation at all times, and supports branch wiring form. It is an object of the present invention to provide a communication cable distribution box device that takes into account systemability that can appropriately cope with the configuration of the communication trunk line.

[0008]

According to the present invention, in order to achieve the above-mentioned object, the present invention is installed on the ground for maintenance and inspection of a communication line system constituted by an underground line system. An amplifier support mechanism 10 for supporting the amplifier A for the communication cable C; an emergency power supply support mechanism 20 for supporting an emergency power supply P for supplying power to the amplifier A in an emergency such as a power failure; The switch box support mechanism 30 supporting the switch box B for the supply device P and the distributor support mechanism 40 supporting the distributor S for each customer are selectively combined to be openable and closable with ventilation means. It is characterized in that it is provided in the box body 1. The ventilation means arranges the left and right side walls 3, 5, the front and rear side walls 4, 6, and the upper side wall 7 as floating wall structures communicating with the outside at the upper and lower edges and the left and right edges, respectively, outside the skeleton-shaped internal frame 2, On the surfaces of the left and right side walls 3, 5 and the front side wall 6, a large number of glaring windows 8 are formed, and the upper side wall 7 covers the outer edges of the surrounding left and right side walls 3, 5 and the front and rear side walls 4, 6 from above. By arranging a slight gap with the upper surface of the inner frame 2, it is possible to form an outer vent for ventilation around the periphery. Amplifier support mechanism 1
Numeral 0 denotes a column member 11 supported in the shape of a standing leg at the front, rear, left and right positions in the box body 1, a horizontal member 13 erected between the column members 11 along the front and rear, and a column member 11, the horizontal member 13 And a support rod 18 laid between the horizontal members 13 to support the amplifier A. The emergency power supply support mechanism 20 includes:
Upper and lower support members 21 and 22 provided above and below the emergency power supply P, and support pins 24 fixed to the inner surface of the rear wall 4 of the box body 1 and fitted into the lower support member 22.
Lower body 23 projecting from the upper surface and box body 1
An upper support 25 fixed to the inner side surface of the rear side wall 4 and an upper intermediate connector 26 for connecting and fixing the upper support 25 and the upper support member 21 to each other. The switch box support mechanism 30 includes the box body 1
And a slide base 32 fixed to the switch box B via a connecting rod 34 protruding from the back of the switch box B and fitted to the outside of the mount base 31; It can be configured to include an insertion support piece 35 fixed to the mounting base 31 so that the insertion piece 33 formed on the base 32 can be inserted therein, and fixing means 36 for fixing the mounting base 31 and the slide base to each other. .

[0009]

In the communication cable distribution box device according to the present invention, the ventilation means formed in the box body 1 generates a convection in the box body 1 communicating with the outside of the box body 1. The hot air is dissipated to the outside, and the inside of the box body 1 is maintained at an appropriate temperature to prevent the emergency power supply P housed in the box body 1 from becoming hot. The amplifier support mechanism 10, the emergency power supply support mechanism 20, the switch box support mechanism 30, and the distributor support mechanism 40 selectively provided in the box body 1
Various devices such as the amplifier A, the emergency power supply P, the switch box B, and the distributor S can be arranged in a proper combination in the box main body 1 by the combination thereof. To support various inspections, maintenance, etc. The amplifier support mechanism 10 supports a predetermined amplifier A in the box main body 1 and securely positions and fixes the amplifier A while adjusting the vertical and horizontal positions in the box main body 1 by a simple operation. 1, a space is formed around the amplifier A itself, and a sufficient wiring space for the communication cable C is ensured. The emergency power supply support mechanism 20 is connected to the rear wall 4 of the box body 1.
The emergency power supply P is firmly supported and fixed to the inner surface, and the support and fixation is performed only from the front side of the emergency power supply P. The switch box support mechanism 30 securely supports and fixes the switch box B on the inner side surface of the rear side wall 4 of the box body 1, and slides the switch box B itself to support and fix the switch box B, thereby performing the work from the front side. Let

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
An amplifier A for amplifying the transmission signal of various communication cables C such as a CATV, an emergency power supply P serving as a power supply for operating the amplifier A in an emergency such as a power failure, and switches for turning on and off the P Is a box body that accommodates a switch box B in which is stored, a distributor S that distributes a transmission signal for each customer, and the like in an appropriate combination. As shown in FIG. 12, the box main body 1 is provided with a channel steel material on the ground on a handhole H provided in the ground at a position where the inspection, maintenance and the like are required in a communication line system formed in the ground. It is installed in a standing shape via an installation member D such as.

The box body 1 is an extra-large type (in which an amplifier A, an emergency power supply P, a switch box B, and a distributor S are accommodated, corresponding to the contents of maintenance and inspection in a communication line system). 11), an amplifier A, an emergency power supply P, a large type accommodating the switch box B (see FIGS. 1 to 4), and an amplifier A and a medium type accommodating the distributor S (see FIG. 9). The width, height, depth, and the like are appropriately set so as to have a volume corresponding to a small type (see FIG. 10) in which only the distributor S is stored. In the main embodiment of the present invention, the large type is explained, but the other types are basically the same, so that the differences will be explained.

That is, as shown in FIGS. 1 to 8, an amplifier support mechanism 10 for supporting an amplifier A and an emergency power supply for supporting an emergency power supply P are shown in FIGS. There is provided a support mechanism 20 and a switch box support mechanism 30 for supporting the switch box B. These mechanisms 10, 20, 30 are provided in the box body 1.

The box body 1 itself has an opening at the bottom so as to communicate with the upper opening of the handhole H, and has a substantially rectangular parallelepiped shape that is thin and vertically long and can be opened and closed. As shown in FIG. 4, left and right side walls 3 and 5 having a large number of glazing windows 8 formed on the surface, front and rear side walls 4 and 6, and an upper side wall 7 having a central portion bulging slightly upward, as shown in FIG. Is what it is. Also,
The left and right side walls 3, 5 and the front and rear side walls 4, 6 and the upper side wall 7, which are arranged outside the inner frame 2, respectively, have a floating wall structure which communicates with the outside at upper and lower edges, left and right edges, A convection occurs inside the inside of the wall, and a ventilation means is formed so that the air inside the box body 1 is exhausted to the outside. More specifically, the inner frame 2 has a frame-like structure, and the inner frame 2 has a stepped upper portion.
A right side wall 3 fixed to the right side of the inner frame 2, a rear side wall 4 similarly fixed to the rear side of the internal frame 2 with an upper portion in the form of a step, and an open portion at the front side. A left side wall 5 formed into an openable door shape, and an appropriate section which is divided into two to form an open portion, and the left and right portions are pivotally pivoted to the internal frame 2 at the left and right portions to form an openable openable door shape. Side wall 6
By providing a slight gap with the upper surface of the inner frame 2 so as to cover the outer edges of the left and right side walls 3 and 5, the rear side wall 4, and the front side wall 6 from the upper surface, a ventilation outer outlet is formed around the periphery. And an upper side wall 7. Further, the box body 1 itself is suspended and installed at a predetermined position by an eye bolt 9 projecting from the upper surface of the upper side wall 7 in connection with the inner frame 2. , Which are closed by suitable blind bolts.

Each of the left side wall 5 and the front side wall 6 can be attached and detached at a shaft support portion and locked by an appropriate locking means against intrusion from outside if necessary, for example, during maintenance and inspection work. Furthermore, in order to facilitate the work by attaching and detaching the upper side wall 7, to eliminate the protrusions from the outside in consideration of the safety of the traffic on the ground, and to improve the weather resistance, for example, after the hot-dip galvanizing treatment, The body is to be painted. The surface treatment may be performed by baking after the hot-dip galvanizing treatment, or by powder coating or baking after the primer treatment.

On the other hand, as shown in FIGS. 1 to 3 and 5, the amplifier support mechanism 10 can freely adjust two amplifiers A on the left side of the box body 1 in the vertical and horizontal positions. It is arranged and fixed so that For this reason, the amplifier support mechanism 10 includes a column member 11 supported in the shape of a standing leg at the front, rear, left and right positions in the box body 1, a horizontal member 13 bridged between the column members 11 along the front and rear, and a column member 11 And fastening means 15 for fastening the horizontal members 13 to each other, and a support rod 18 laid between the horizontal members 13 to support the amplifier A.

The support member 11 is formed of a vertically elongated strip-shaped flat plate having an appropriate thickness, and is fixed to the upper and lower portions of the internal frame 2 by upper and lower ends thereof with screws or the like.
It is supported inside the box body 1 in a standing shape. And, along the length direction, the upper and lower edges,
A large number of connection holes 12 having, for example, a vertically long rectangular shape having different left and right edges are formed at substantially equal intervals.

The horizontal support member 13 is formed of a horizontally long strip-shaped flat plate having an appropriate thickness. The horizontal support member 13 is fixed between the column members 11 along the front-rear direction of the box main body 1 by the left and right ends thereof. 1 is provided along the front-rear direction. For example, a U-shaped support groove 14 is cut out at an upper edge of the horizontal member 13 at predetermined intervals.

The fastening means 15 for fastening the support member 11 and the horizontal support member 13 is capable of one-side construction, and as shown in FIG. 5, after the support member 11 is inserted into the connection hole 12 in the support member 11. A square root-shaped fastening bolt 16 having a rectangular cut-out head, which can be engaged by the rotation of, is screwed with a nut 17 or the like in a rotatable state on the horizontal member 13. is there. Thereby, the connection hole 12
After the head of the vertically long fastening bolt 16 that can be inserted into the connection hole 12 is inserted into the connection hole 12,
If the nut 17 is screwed in a state in which it is engaged with the peripheral edge, the horizontal member 13 can be fastened and fixed to the column member 11 by one-side construction from the nut 17 side.

The support rod 18 is made of a round bar having a predetermined diameter, and has a vertically elongated shape in the vicinity of both ends by being crushed from the left and right directions in which the positioning is restricted and fitted into the support groove 14. An engagement portion 19 is formed. The crushed width of the engagement portion 19 is substantially equal to the width of the inner edge of the support groove 14, so that the rotation of the support rod 18 itself when fitted into the support groove 14 is also prevented. Considered. The support rod 18 includes the support rod 1.
The amplifier A is supported so as to be slidable along the length direction of the amplifier 8. For example, the amplifier A is suspended from the support rod 18 and supported by an engagement fitting formed on the upper end surface of the amplifier A. .

The emergency power supply support mechanism 20 includes:
As shown in FIGS. 1 to 3, 6, and 7, the back of the emergency power supply P is supported and fixed to the upper right side of the box body 1. Therefore, the emergency power supply support mechanism 20 includes upper and lower support members 21 and 22 provided above and below the emergency power supply P.
And a lower support 23 fixed to the inner surface of the rear wall 4 of the box body 1 and having a support pin 24 fitted into the lower support member 22 projecting from the upper surface, and fixed to the inner surface of the rear wall 4 of the box body 1. Upper support 25 and the upper support 2
5. An upper intermediate connector 26 for connecting and fixing the upper support members 21 to each other.

The upper and lower support members 21 and 22 at the back of the emergency power supply P are formed so as to protrude substantially horizontally on the back of the emergency power supply P, and are made of, for example, an angle material. A support hole is formed near the portion.

The lower support 23 is made of, for example, an angle material. The lower support 23 is fixed to the inner surface of the rear side wall 4 at its vertical portion, and a pair of left and right support pins 24 projecting from the upper surface of the horizontal portion. The lower support member 22 supports the lower portion of the emergency power supply P by being fitted into the support hole.

The upper support 25 is made of, for example, an angle material similar to the lower support 23, and the horizontal portion thereof is positioned at a position substantially corresponding to the upper surface of the emergency power supply P which is disposed and fixed. It is fixed to the inner surface of the side wall 4.

The upper intermediate connector 26 is connected to the upper support member 21 fixed to the upper side of the back of the emergency power supply P.
Is fixedly connected to the upper support 25 corresponding to the upper surface position of the emergency power supply P when the emergency power supply P is arranged and fixed, by one-side construction. To support the upper part. Therefore, the lower connecting portion 2 which is screwed to the upper supporting member 21 is connected.
7A at the lower end and upper connecting portions 27B at the upper end for screw connection to the upper support 25, respectively, and the left and right connections set at a height corresponding to the distance from the upper support member 21 to the upper support 25. By connecting the bodies 27 with the connecting board 28, the whole is formed to have a substantially H-shape. The screw connection between the upper connecting portion 27B and the upper support 25 is connected by a connecting means 29 similar to the fastening means 15 described above. 27B or a square root-shaped connecting bolt having a rectangular-cut head formed to be engageable by rotation after being inserted into a rectangular connecting hole formed in either the upper support 25. , And is screwed with a nut or the like in a rotatable state to either the upper support 25 or the lower connecting portion 27A.

According to the emergency power supply support mechanism 20, the upper intermediate connector 26 is connected to the upper support member 21 at the back of the emergency power supply P, and the lower support fixed to the inner surface of the rear wall 4 is fixed. After the lower support member 22 is fitted to the support pin 24 of the body 23, the upper connecting portion 27B of the upper intermediate connecting body 26 and the upper support 25 are aligned vertically, and the connecting bolt in the connecting means 29 is inserted and rotated. The emergency power supply P can be arranged and fixed only by working from the front side of the emergency power supply P.

Further, the switch box support mechanism 30 includes:
As shown in FIG. 1 to FIG. 3, FIG. 6, and FIG. 7, by supporting the back of the switch box B, it is arranged and fixed at the lower right side of the box main body 1. Therefore, the switch box support mechanism 30 is fixed to the switch box B via a mounting base 31 fixed to the inner surface of the rear wall 4 of the box main body 1 and a connecting rod 34 protruding from the back of the switch box B. A slide base 32 fitted to the outside of the base 31, an insertion support piece 35 fixed to the mounting base 31 so that the insertion piece 33 formed on the slide base 32 can be inserted, and the mounting base 31 and the slide base 32. And fixing means 36 for fixing.

The mounting base 31 is formed, for example, in the shape of a square pipe and fixed to the inner side surface of the rear side wall 4 along the left-right direction.
Further, a fixing hole for the fixing means 36 which coincides vertically is formed in the other end side.

The slide base 32 is attached to the mounting base 31.
It is formed in a channel shape with a lateral opening that fits outside, and is integrated with the switch box B by fixing the side part outer surface to the tip of the connecting rod 34 protruding on the left and right of the back of the switch box B, By sliding from the other end side with respect to the mounting base 31, it can be fitted to the mounting base 31. A protruding side portion remaining by cutting off the upper and lower portions of the channel body is provided as an insertion piece 33 at the distal end side of the slide base 32, and a fixing hole for fixing means 36 is provided at the rear end side. Has been perforated.

The insertion support piece 35 is formed in the shape of a channel, and the upper and lower portions are attached while a gap not smaller than the thickness of the insertion piece 33 is formed between the insertion support piece 35 and the side surface of the attachment base 31. By being fixed to the upper and lower surfaces of the base 31, it is integrally connected to the mounting base 31.

The fixing means 36 is provided with a pin which is inserted after fitting the fixing holes formed respectively so as to integrate the mounting base 31 and the slide base 32 which is slid and fitted on the mounting base 31. Or in the form of a rod, and in the illustrated example, it is a bolt that is screwed.

According to the switch box support mechanism 30, the slide base 32 via the connecting rod 34 at the back of the switch box B is fitted to the mounting base 31 fixed to the inner surface of the rear side wall 4, and is slid to be inserted.
Can be inserted into the insertion support piece 35, and then the slide base 32 can be fixed to the mounting base 31 by the fixing means 36, so that the arrangement and fixing of the switch box B in the box body 1 can be easily performed. it can.

As described above, the amplifier A, the emergency power supply P, and the switch box B are disposed on the large-sized box body 1 via the support mechanisms 10, 20, and 30. Separately, the distributor support mechanism 40 for supporting the distributor S in the box main body 1 is, for example, shown in FIG.
As shown in FIG. 0, for example, there is a wooden panel appropriately disposed on the inner side surface of the rear side wall 4 of the box body 1, and the distributor S is fixed to this wooden panel surface with a wood screw or the like. Has become. As shown in FIG. 9, for example, the amplifier support mechanism 10 is fixed to a support rod 41 similar to the support rod 18 supported via the horizontal member 13 via an appropriate support tool.

Reference numeral 45 in the figure denotes a cable holding means for holding the communication cable C and the like connected to the amplifier A and the like in the box body 1, for example, via the horizontal support member 13 in the amplifier support mechanism 10. Support rod 18 supported
And a washer 47 having a concave portion fixed to a support rod 46 similar to the above.

Thus, as described above, the amplifier support mechanism 10, the emergency power supply support mechanism 20, the switch box support mechanism 30, the distributor support mechanism 40, and the cable holding means 45 are appropriately combined, Each type of box device for maintenance and inspection on the communication line system is systematically configured. That is, when a large-sized type accommodating the amplifier A, the emergency power supply P, and the switch box B is housed, the amplifier support mechanism 10 and the emergency power supply are provided in the box body 1 as shown in FIGS. The support mechanism 20, the switch box support mechanism 30, and the cable holding means 45 are incorporated. When a medium-sized type accommodating the amplifier A and the distributor S is used, the amplifier support mechanism 1 is installed in the box body 1 as shown in FIG.
0, the distributor support mechanism 40 and the cable holding means 45 are incorporated. When a small type housing the distributor S is used, as shown in FIG.
The distributor support mechanism 40 is incorporated therein. When a large-sized type accommodating the amplifier A, the emergency power supply P, and the switch box B is housed, the amplifier support mechanism 10, the emergency power supply support mechanism 20, Switch box support mechanism 3
0, the distributor support mechanism 40 and the cable holding means 45 are incorporated.

As shown in FIG. 12, each of these types of box devices is provided on a handhole H which is installed underground at a position where inspection, maintenance and the like are required in a communication line system formed underground. , And are provided sequentially according to the distribution form from the supply source to the consumer. The power for the amplifier A is wired so as to be normally supplied from the power box W.

[0036]

The present invention is configured as described above.
For this reason, the amplifier A attached to the communication cable C constituting the underground communication line system, and the amplifier A in the event of an emergency such as a power failure.
Emergency power supply P for supplying power to the power supply, a switch box B containing switches for turning on and off the power supply,
When the distributors S and other various devices for each customer are installed on the ground, the ventilation inside the box body 1 that covers them,
This facilitates maintenance and inspection. In particular, since the ventilation inside the box body 1 is sufficiently ensured, it is possible to prevent the emergency power supply P disposed inside from becoming high in temperature, and to enable stable operation at all times.
Inside the box main body 1, an important structure of the communication line system is provided by selectively configuring the support mechanism 10, 20, 30, 40, etc., which supports various devices corresponding to the branch wiring configuration. The configuration can be easily dealt with.

That is, in the present invention, the ventilation means is provided by selectively combining the amplifier support mechanism 10, the emergency power supply support mechanism 20, the switch box support mechanism 30, and the distributor support mechanism 40 in the present invention. This is because it is provided in the box body 1 that can be opened and closed, and each mechanism 10, 2
An appropriate combination of 0, 30, and 40 enables a systematic configuration of various devices for maintenance and inspection at important points along the communication line.

The ventilation means is provided with a slight gap so that the outer edges of the left and right side walls 3 and 5, the front side wall 6 and the rear side wall 4 each having the glaring window group 8 formed on the surface are covered by the upper side wall 7 from the upper surface. As a result, the convection inside and outside the box main body 1 is generated, the hot air inside the box main body 1 can be radiated to the outside, and the high temperature of the emergency power supply P stored in the box main body 1 And P can always be operated stably.

In the amplifier support mechanism 10, the support members 11 arranged on the standing legs, the horizontal support members 13 provided between the support members 11 by the fastening means 15, and the support rods 18 provided between the horizontal support members 13 are provided. This allows the amplifier A to be arranged and fixed in the box main body 1 and can be arranged and adjusted while adjusting the vertical and horizontal positions thereof, so that a space is formed around the amplifier A itself. A sufficient wiring connection space with the communication cable C can be secured, and workability can be improved.

The emergency power supply support mechanism 20 includes upper and lower support members 21 and 22 at the back of the emergency power supply P, and support pins 2 fixed to the inner surface of the rear wall 4 of the box body 1.
A lower support 23 with 4, an upper support 25,
Since the upper support 25 and the upper intermediate connector 26 for connecting and fixing the upper support members 21 to each other are provided, the emergency power supply P can be firmly supported and fixed to the inner surface of the rear wall 4 of the box body 1. In addition, when the support is fixed, the lower side of the emergency power supply P is temporarily aligned by the support pins 24, and then the upper side of the emergency power supply P is fixed via the upper intermediate connector 26. Therefore, the operation can be performed very easily and easily only from the front side of the emergency power supply P.

In the switch box support mechanism 30,
Since the slide base 32 on the back of the switch box B is slid and fitted to the mounting base 31 fixed to the rear side wall 4, the insertion piece 33 is inserted into the insertion support piece 35, and is fixed by the fixing means 36. The switch box B can be firmly supported and fixed to the inner side surface of the rear side wall 4, and the switch box B itself can be slid on the front side of the switch box B in supporting and fixing the switch box B. is there.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an arrangement example of a large type internal structure according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view.

FIG. 3 is a partially cutaway plan view.

FIG. 4 is an external perspective view of the same.

FIG. 5 is an exploded perspective view of a main part of the amplifier support mechanism.

FIG. 6 is a side view of an emergency power supply support mechanism and a switch box support mechanism.

FIG. 7 is an exploded perspective view of the emergency power supply support mechanism as viewed from the rear side.

FIG. 8 is an exploded perspective view of the switch box support mechanism as viewed from the rear side.

FIG. 9 is a partially cutaway front view showing an example of an arrangement inside a medium-sized type according to another example of the present invention.

FIG. 10 is a partially cutaway front view showing an example of an internal arrangement of a small type in another example of the present invention.

FIG. 11 is a partially cutaway front view showing an example of an internal arrangement of an extra-large type according to another example of the present invention.

FIG. 12 is a conceptual perspective view illustrating an underground retracting state according to the present invention.

[Explanation of symbols]

A ... Amplifier B ... Switch box C ... Communication cable D ... Installation member H ... Hand hole P ... Emergency power supply S ... Distributor W ... Power box 1 ... Box body 2 ... Inner frame 3 ... Right wall 4 ... Rear wall DESCRIPTION OF SYMBOLS 5 ... Left wall 6 ... Front wall 7 ... Upper wall 8 ... Gully window group 9 ... Eyebolt 10 ... Amplifier support mechanism 11 ... Post material 12 ... Connecting hole 13 ... Horizontal material 14 ... Support groove 15 ... Fastening means 16 ... Fastening bolt DESCRIPTION OF SYMBOLS 17 ... Nut 18 ... Support rod 19 ... Engagement part 20 ... Emergency power supply support mechanism 21 ... Upper support member 22 ... Lower support member 23 ... Lower support 24 ... Support pin 25 ... Upper support 26 ... Upper middle connection Body 27 ... Connected body 27A ... Lower connection part 27B ... Upper connection part 28 ... Connection board 29 ... Connection means 30 ... Switch box support mechanism 31 ... Mounting base 32 ... Slide base 3 ... inserting piece 34 ... connecting rod 35 ... insertion support piece 36 ... fixing means 40 ... distributor support mechanism 45 ... cable retention means 46 ... supporting rod 47 ... washer

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tadao Makita 4-8-33 Shibaura, Minato-ku, Tokyo Inside Kandenko Co., Ltd. Ground: Within the Shirai Plant of Doi Manufacturing Co., Ltd. (72) Noboru Shudai, Hiraizuka Shirai Plant, Hiraizuka-machi, Inba-gun, Chiba Pref. Hiratsuka Shirai Second Industrial Park Shirai Plant, Doi Manufacturing Co., Ltd. (72) Inventor Shin Imai Hiratsuka Shirai Second Industrial Park Shirai Town, Inba-gun, Chiba Prefecture Doi Manufacturing Co., Ltd.Shirai Plant (56) References JP 6 -233418 (JP, A) JP-A-4-217803 (JP, A) JP-A-2-10729 (JP, U) JP-A-2-91403 (JP, U) (58) Fields investigated (Int. C) l. ⁷ , DB name) H02B 1/56 H02G 3/08 H02G 9/10

Claims (3)

(57) [Claims] 1. A communication cable distribution box device installed on the ground for maintenance and inspection of a communication line system constituted by an underground cable system, comprising: an amplifier support mechanism for supporting an amplifier for a communication cable; An emergency power supply support mechanism that supports an emergency power supply that supplies power to the amplifier in the event of an emergency, a switch box support mechanism that supports a switch box for the emergency power supply, and a distributor for each customer The distributor support mechanism to be supported is selectively combined and provided in an openable / closable box body provided with ventilation means, and the emergency power supply support mechanism is provided above and below the emergency power supply back. The upper and lower support members, the lower support member fixed to the inner surface of the rear wall of the box body, and a support pin fitted into the lower support member is provided on the upper surface, and the lower pin is fixed to the inner surface of the rear wall of the box body. Upper support, and this upper support,
An upper intermediate connector for connecting and fixing the upper support members to each other, wherein the switch box support mechanism includes a mounting base fixed to an inner surface of a rear wall of a box body;
A slide base fixed to the switch box via a connecting rod projecting from the back of the switch box and fitted to the outside of the mounting base, and a plug fixed to the mounting base so that a plug piece formed on the slide base can be inserted. A communication cable distribution box device comprising a support piece, and a fixing means for fixing the mounting base and the slide base to each other. 2. The ventilation means includes a left and right side wall, a front and rear side wall, and an upper side wall as floating wall structures communicating with the outside at upper and lower edges and left and right edges, respectively, outside the skeleton-shaped inner frame. A large number of glazing windows are formed on the front wall surface, and the upper wall is provided with a slight gap from the upper surface of the internal frame so as to cover the outer edges of the surrounding left and right side walls and front and rear side walls from the upper surface. 2. The communication cable distribution box device according to claim 1, wherein an external outlet for ventilation is formed. 3. The amplifier support mechanism comprises: a support member which is supported in a standing shape at front, rear, left and right positions in a box body; a cross member which is bridged between the front and rear support members; 3. The communication cable distribution box device according to claim 1, further comprising: fastening means for fastening the two members, and a support rod which is laid between the horizontal members so as to support the amplifier.