JPH0621333U - Cable storage box - Google Patents

Abstract

(57) [Abstract] [Purpose] A cable storage box that can save labor in piping, reduce costs, shorten the construction period, and lay it even on gently curved roads. I will provide a. [Structure] Cable storage box body 1
A pipe line 2 having a cable insertion hole 3 integrally formed with the box body 1 in the lengthwise direction is provided at least at one position inside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cable storage box in which various cables such as power lines, telephone lines or optical fibers are aggregated and buried in the ground. More specifically, it is used for an all-in-one wiring system in an urban area or a detached house area. It is used at the bottom of the sidewalk.

[0002]

[Prior art]

 Conventionally, distribution lines such as power lines have been installed between utility poles, but recently, distribution lines have been secondarily grounded from the viewpoints of improving the cityscape, ensuring a safe and comfortable walking space, and preventing urban disasters. The number of people is increasing. There are generally direct burying method, pipe method, supply pipe joint groove method, etc. for undergrounding of these electric wires, and they are carried out by an appropriate method in consideration of the situation of the area and route.

Although the direct burial method is the cheapest construction method, it requires pedestrian traffic and road maintenance because it requires excavation every time a new demand occurs, as well as maintenance of electric wires for the accommodation property. There are many problems from the viewpoint of maintenance of the accommodation property.

Further, the pipeline system is a system in which a human hole and a pipeline are laid in advance and a cable is drawn into the pipeline, which is considerably more expensive than the direct embedding system, but an extra pipe is required. This is a convenient method for additional expansion after installation.

However, not only is it necessary to dig up on a large scale on the road surface in the event of another new cable demand or new pull-in, but it is also necessary for each person to go underground individually. This is a construction method that remains problematic in areas with high cable demand, from the perspective of uneconomical efficiency and effective use of limited road space.

Furthermore, the supply pipe common groove accommodates not only electric wires but also water and sewage, gas pipes, etc. at the same time, and it is maintained from the viewpoint of preventing digging back of the sidewalk, and at the same time, the electric wires can be underground. Although this is the most effective means of protecting the road environment, it has problems such as the area being limited due to the large scale, high construction costs, and the time required to adjust the occupants. It was

As described above, since each method has its own problems, recently, various cables such as power lines and telephone lines have been aggregated, and various cables have been accommodated together in a limited space. Even when maintaining and repairing cables, a cable storage box has been proposed that consists of a U-shaped structure with a lid that allows you to perform the required work in a short time and without digging up the road by simply opening and closing the lid.

[0008]

[Problems to be solved by the device]

 However, as shown in FIG. 10, the cable storage box of the U-shaped structure with a lid is provided with support bases 32 on the upper, middle, and lower stages of one side wall surface of the storage box 31, and the cable is mounted on the support base 32. The steel pipe or the synthetic resin pipe 33 is arranged and fixed for each type, and then the cable 34 is inserted into the pipe.

Therefore, since it is necessary to prepare a tube body of various sizes such as a large diameter, a medium diameter, and a small diameter for each cable type, it is very troublesome and it is deformed by the tension when the cable is pulled in such as a bent portion. There was a problem in strength as well. In addition, the conventional cable storage box could be used on straight roads, but could not be used on curved roads because it could not be connected.

The present invention solves such a problem, can save labor of piping, can reduce cost and shorten construction period, and can be installed even on a gently curved road. The present invention provides a cable storage box that can be used.

[0011]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the cable storage box of the present invention is provided with a conduit having a cable insertion hole integrally formed with the box main body in the longitudinal direction at least at one location inside the cable storage box main body. It is a thing.

Further, a concrete perforated pipe is arranged in at least one position inside the cable storage box main body in the length direction, and is attached to the box main body with the concrete perforated pipe and a fixture. Furthermore, the front and rear wall surfaces of the main body of the cable storage box are formed not at right angles to the length direction but at an inclined surface with a small angle inclination.

[0013]

[Action]

 If the main body of the cable storage box is installed, about half of the pipelines for wiring cables will be installed, which will greatly reduce the labor of piping work, shorten the construction period, and reduce the cost. Also, by using a cable storage box with the front and rear end walls inclined at a small angle, it can be used on curved roads, and complicated piping work at curved parts will be facilitated.

[0014]

【Example】

 Hereinafter, drawings showing an embodiment of the present invention will be described. Reference numeral 1 is a concrete cable storage box body, which is a U-shaped one in which both side walls 1a, 1a and a bottom plate 1b are integrally formed. Reference numeral 2 denotes a square pipe line integrally formed with the box body 1 at the lower corner of one side wall, which is provided in the longitudinal direction.

The pipe 2 has four holes vertically extending in two stages for inserting a cable. The number of the insertion holes 3 is not limited to four and may be four or more and may be four or less. The sizes of the holes are not the same in the upper and lower sides, and the upper part may have a small diameter and the lower part may have a large diameter. There is also. Reference numeral 4 denotes a support table attached to one side wall 1a, on which pipe 4a for inserting various cables is placed.

Reference numeral 5 is a lid plate that closes the upper opening 1c of the cable storage box body 1, and both lower ends of the lid plate 5 are convex portions 5a that fit into the concave portions 1d of the upper surface portion of the cable storage box body. ing. Reference numeral 6 denotes a bolt hole which is longitudinally provided at a lower end portion of the cable storage box body 1 in a substantially width direction, and 7 denotes a connection provided at front and rear ends of the outer wall surface of the cable storage box body 1 at a substantially center in a height direction. It is a fixing plate for hardware.

The use mode of the cable storage box of the present invention configured as described above will be described. The cable storage box main body 1 is placed in a groove excavated under the sidewalk of a road, and the adjacent front and rear box main bodies 1, 1 The front and rear end faces of are fitted and sequentially arranged.

Thereafter, the bolt 8 is inserted into the bolt hole 6, and the long nut 9 fixed to the countersunk hole 6 a provided at the end of the bolt hole 6 is screwed into the long nut 9 so that the adjacent box main body 1 is lowered. In addition to connecting the parts, the connecting hardware 10 is fixed to the connecting hardware fixture 7 provided at the center of the outer wall surface of the cable storage box body 1 in the height direction, and the connecting box main bodies 1 and 1 are also connected and fixed. ing.

When the storage box bodies 1 and 1 are fixed, the power line cable is introduced into the cable insertion hole 3 of the pipe line 2 and the pipe body 4a mounted on the upper support base 4 attached to the one side wall 1a. Insert the CATV cable and the illumination cable, and insert the communication cable into the tube body 4b of the lower support 4. After that, the cover plate 3 is placed on the upper opening, and the cover plate 3 becomes a sidewalk.

FIG. 7 shows another embodiment. In the above-mentioned embodiment, the pipe line 2 was integrally formed with the storage box body 1, but in this embodiment, the storage box is The concrete perforated tube 12 of the same length as the box main body 11 is provided in advance, and this concrete perforated tube 12 is arranged at the corner of the storage box main body 11, and the upper surface of the storage box main body 11 is located at the front and rear portions thereof. The steel strip band 13 which is in contact with one side surface is fastened and the ends thereof are fastened to the one side wall surface 11a and the bottom plate 11b with bolts 14 and 14.

In each of the above-described embodiments, the description has been made on the condition that the conduit is provided only at one corner, but the same conduit may be provided at the other corner. Further, although the conduit has a square shape, it is needless to say that the conduit may have other shapes such as a triangular shape.

Further, FIG. 8 shows another embodiment. In the above embodiment, the cable storage box installed when the road is a straight line has been described. Even if it is a curved portion, it can be dealt with. That is, the front and rear end wall surfaces 21a and 21b of the cable storage box body 21 are storage boxes in which the front and rear end wall surfaces 21a and 21b are not inclined at right angles to the longitudinal direction but are inclined at a small angle α ° and are formed on inclined surfaces. Is. The storage box body 21 can be installed even on a curved road as shown in FIG. 9 if it is connected in the same manner as in the above embodiment.

[0023]

[Effect of device]

 According to the present invention, at least one location inside the cable storage box main body is provided with a conduit having a cable insertion hole integrally formed with the box main body in the longitudinal direction. The piping of the pipeline has been completed, and it is possible to significantly save energy and shorten the construction period.

Further, the cost is reduced due to the reduction of the piping work and the cost of the pipe material, and by integrating the cable body 1 and the pipe line, the strength is stronger than the pipe by the single pipe, and the cable at the bent portion is stronger. It is sufficiently stable even when the pull-in tension is increased.

Further, by making the tube body separate from the box body, there is the convenience that it can be used for the existing box body. Furthermore, since the front and rear wall surfaces of the storage box body are inclined at a small angle on the plane, not at a right angle to the length direction, the bent portion can be laid like the straight portion.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a cable storage box of the present invention.

FIG. 2 is a front view of the cable storage box of the present invention.

FIG. 3 is a vertical sectional side view of the cable storage box of the present invention.

FIG. 4 is a vertical sectional side view showing a connected state of the cable storage box of the present invention.

FIG. 5 is a vertical cross-sectional side view of the cable storage box of the present invention with cables stored therein.

FIG. 6 is a simplified enlarged cross-sectional view of a main part connecting the cable storage boxes to each other.

FIG. 7 is a front view of a cable storage box showing another embodiment.

FIG. 8 is a plan view of a cable storage box showing another embodiment.

FIG. 9 is a plan view showing a connected state.

FIG. 10 is a front view of a conventional cable storage box.

[Explanation of symbols]

(1), (11), (21)… Cable storage box (2)… Pipe line (3)… Cable insertion hole (12)… Perforated pipe (13)… Fixture (21a)… Front end wall (21b) ) ... rear end wall

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takeshi Kaneko 5-14-10 Nishitenma, Kita-ku, Osaka City Kinki Concrete Industrial Co., Ltd. (72) Ichiro Sakurai 5-14-10 Nishitenma, Kita-ku, Osaka Kinki Concrete Industry Co., Ltd.

Claims (3)

[Scope of utility model registration request] 1. A cable storage box comprising a cable storage box body 1 having a conduit 2 having a cable insertion hole 3 integrally formed with the box body 1 in at least one position inside the cable storage box body 1. . 2. A concrete perforated pipe 12 is arranged in the length direction at least at one location inside the cable storage box main body 11, and the concrete perforated pipe 12 is attached to the box main body 11 with a fixture 13. Cable storage box. 3. The cable according to claim 1, wherein the front and rear end wall surfaces 21a and 21b of the cable storage box body 21 are not right angles to the length direction but are formed as inclined surfaces inclined by a small angle α °. Storage box.