JP2000286621A - Communication tower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication tower which is not easily damaged by its meteorological situation or peripheral environment and can particularly improve the durability of a transmitting/receiving device for electromagnetic waves by forming a hollow part covered with a magnetically poermeable material at a part of the communication tower and placing a communication device into the hollow part. SOLUTION: A side wall part 12a of at least a tip part 11a is made of a magnetically permeable material among plural parts 11 and can transmit smoothly the electromagnetic waves in a communication tower 10. A hollow part is formed at the inside of the part 11a having the part 12a, and various communication devices 14 are placed in the hollow part. In such a constitution, a device 14 such as a transmitting/receiving device of electromagnetic waves is never exposed to the outside air and is not easily damaged by its meteorological situation or peripheral environment to improve its durability. At the same time, the influence of the meteorological situation or peripheral environment can be reduced to the tower 10 to decrease the execution frequency of its maintenance jobs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication tower which is provided at a relay point such as a mountaintop as a relay antenna for television broadcasting or the like and has a communication device for transmitting and receiving communication signals.

[0002]

2. Description of the Related Art A communication facility provided at a relay point such as a mountaintop as a relay base of a communication network such as a television broadcast has a small-to-medium-sized communication tower. As shown in FIG. 4, this communication tower is configured such that a pole 2 is erected on the top of a steel tower 1, and a communication device 3 such as an electromagnetic wave transmitting / receiving device is attached to the pole 2.

[0003]

By the way, the conventional communication tower is installed in a state where the communication equipment 3 is exposed to the outside air, and these communication devices are installed in the wind, snow, ice, dust, ultraviolet rays, harmful gas, lightning strike. Since the chances of being directly damaged by weather conditions and the surrounding environment, such as obstacles caused by birds and insects, are increasing, the durability of the communication device 3 is significantly reduced.

[0004] Further, since the tower 1 is greatly damaged by weather conditions and the surrounding environment, large-scale maintenance of the tower 1 itself is performed once every several years.

The present invention has been made in view of the above circumstances, and is a communication system which is hardly damaged by weather conditions and surrounding environment, and which can significantly improve the durability of an electromagnetic wave transmitting / receiving device. It is intended to provide a tower.

[0006]

As means for solving the above problems, a communication tower having the following configuration is employed.
That is, the communication tower according to claim 1 is a communication tower provided with a communication device for transmitting and receiving a communication signal, wherein a hollow portion partially covered with a magnetically permeable material is provided, and the communication portion is provided inside the hollow portion. It is characterized in that equipment is installed.

In the communication tower according to the first aspect of the present invention, the communication equipment such as an electromagnetic wave transmission / reception device is installed inside the hollow portion, so that the communication equipment is not exposed to the outside air, so that the weather condition and the surrounding environment are prevented. Hard to receive damage from Thereby, the durability of the communication device can be significantly improved. In addition, since the influence on the communication tower from the weather condition and the surrounding environment is reduced, the frequency of the maintenance work is reduced.

According to a second aspect of the present invention, in the communication tower of the first aspect, the communication device is arranged along an inner wall surface of the hollow portion.

In the communication tower according to the second aspect, since the communication equipment is arranged along the inner wall surface of the hollow portion, a wide working space in the hollow portion is ensured, so that a worker enters the communication tower. Maintenance work becomes easier to carry out.

According to a third aspect of the present invention, in the communication tower according to the second aspect, a frame for mounting the communication device is provided inside the hollow portion.

In the communication tower according to the third aspect, the communication device is attached to the inside of the hollow portion via the frame, so that the wall surface of the hollow portion made of a magnetically permeable material bears enough strength to support the communication device. Since there is no need, the range of choice of the magnetically permeable material is expanded. As a result, costs related to the construction of the communication tower can be reduced.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a communication tower according to the present invention will be described with reference to FIGS. FIG. 1 shows a communication facility TC provided at a mountaintop or the like as a relay base of a communication network such as a television broadcast. This communication facility TC is provided with a small-to-medium-sized communication tower 10. This communication tower 10
Are formed by connecting cylindrical parts 11, 11,... In the longitudinal direction, and are erected on the ground near the building of the communication facility TC.

In each part 11, the cylindrical side wall portion 12 itself bears the strength and exhibits the strength as a tower. Also,
A pole 13 for mounting a communication device, which is slightly shorter than the length of the communication tower 10, is erected at the center of the tower having a cylindrical shape.

As shown in FIG. 2, of each part 11,
At least the tip part 11a has a structure in which the side wall part 12a is made of a magnetically permeable material and allows electromagnetic waves to pass without any trouble. At the tip of the pole 13 covered by the part 11a, a communication device 14 including an electromagnetic wave transmission / reception device is installed. The various communication devices 14 are directly mounted around the pole 13 and include the parts 11a
The space created between the inner surface of the vehicle and the pole 13 is a work space for maintenance work. In addition, a ladder (not shown) is provided inside the communication tower 10 for the worker to go up and down from the ground to the tip part 11a.

In the communication tower 10 constructed as described above, the inside of the tip part 11a having the side wall 12a made of a magnetically permeable material is hollow, and various communication devices 14 are installed in this hollow part. Communication equipment 14
Is no longer exposed to the outside air, so that it is less susceptible to damage from weather conditions and the surrounding environment. Communication tower 1 from the surrounding environment
0 is less affected, and the frequency of maintenance work is reduced.

In the present embodiment, the communication tower 10 has a structure in which the connected parts 11 themselves exhibit strength, but the structure of the communication tower is not limited to this.
For example, the outer truss frame may have a cylindrical shape in which an outer wall material made of a magnetically permeable material is attached to the outside of the truss frame.

Next, a second embodiment of the communication tower according to the present invention will be described with reference to FIG. Note that components already described in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG. 3, inside the front part 11a, a plurality of annular mounting frames 15 are arranged along the inner wall surface at predetermined intervals in the vertical direction. It is attached to this attachment frame 15. Also, inside the communication tower 10 is a pole 1
3 is not provided.

In this communication tower, since the communication device 14 is arranged along the inner wall surface of the part 11a, a large work space inside the part 11a is ensured. Is easier to implement. In addition, by arranging the communication device 14 along the inner wall surface, the space inside the tower can be fully utilized, so that it is not necessary to construct a communication tower having a large cross section.

Further, the communication device 14 is mounted on the inside of the front part 11a via the mounting frame 15, so that the communication device 1 is attached to the part 11a made of a magnetically permeable material.
Since there is no need to bear sufficient strength to support the magnetic material 4, the range of choice of the magnetically permeable material is widened. As a result, it is possible to reduce costs related to the construction of the communication tower 10.

In the present embodiment, the communication device 14 is mounted on the communication tower 10 via the mounting frame 15, but the part 1 is not connected via the mounting frame 15.
It may be directly attached to the inner wall surface of 1a.

In each of the first and second embodiments, the communication tower 10 is formed by connecting the parts 11 having a circular cross section.
However, the cross-sectional shape of the part may be any shape. In addition, the whole from the ground to the tip does not have to be hollow, and only the part where the communication device is installed may be hollow.

Further, as the magnetically permeable material, a chemical fiber reinforced resin, for example, a resin reinforced with glass fiber, aramid fiber, nylon or the like, particularly, a glass fiber reinforced resin is preferably used.

[0023]

As described above, the communication tower according to the first aspect of the present invention is a communication tower provided with a communication device for transmitting and receiving a communication signal, and has a hollow portion partially covered with a magnetically permeable material. Is provided, and the communication device is installed inside the hollow portion, so that the communication device such as an electromagnetic wave transmission / reception device is not exposed to the outside air, and the communication device installed inside is As it is hard to receive damage from the environment,
The durability of various communication devices can be significantly improved. In addition, since the influence on the communication tower from the weather condition and the surrounding environment is reduced, the frequency of the maintenance work is reduced.

According to the communication tower of the second aspect, since the communication equipment is arranged along the inner wall surface of the hollow portion, a wide working space in the hollow portion is ensured, so that a worker enters the inside. The workability of the maintenance work to be performed can be improved.

According to the communication tower of the third aspect, the communication device is attached to the inside of the hollow portion via the frame,
Since it is not necessary to provide the hollow portion made of the magnetically permeable material with a strength sufficient to support the communication device, the range of choice of the magnetically permeable material is expanded. Therefore, if an inexpensive magnetically permeable material is selected, it is possible to reduce the cost related to the construction of the communication tower.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram and a main part enlarged perspective view showing a first embodiment of a communication tower according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view of a main part showing a first embodiment of the communication tower according to the present invention.

FIG. 4 is a schematic configuration diagram illustrating an example of a conventional communication tower.

[Explanation of symbols]

 Reference Signs List 1 steel tower 2 pole 3 communication equipment 10 communication tower 11 part 12 side wall 13 pole 14 communication equipment 15 mounting frame TC communication facility

Claims (3)

[Claims] 1. A communication tower provided with a communication device for transmitting and receiving a communication signal, wherein a hollow portion partially covered with a magnetically permeable material is provided, and the communication device is installed inside the hollow portion. A communication tower. 2. The communication tower according to claim 1, wherein said communication device is arranged along an inner wall surface of said hollow portion. 3. The communication tower according to claim 2, wherein a frame for mounting the communication device is provided inside the hollow portion.