JP3413350B2 - Disguised columnar structure for radio etc. - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a columnar structure erected on the ground, and more particularly to a wireless columnar structure supporting an antenna for wireless transmission and reception.

[0002]

2. Description of the Related Art With the widespread use of mobile phones and mobile phones, wireless tower-like structures have been constructed as relay points. That is, in the wireless tower-shaped structure, since it is necessary to secure a transmission / reception area as wide as possible, a tower body as high as possible is erected, and a transmission / reception antenna is installed at the upper end or the top thereof. It is a thing. However, in this type of wireless tower structure, whether the tower body is made of concrete or steel, the outer surface is exposed, and the higher the tower body, the more uncomfortable the scenery is, It's a problem.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a novel columnar structure for wireless use, which does not cause a sense of discomfort in a landscape. . Therefore, the present invention solves this problem with a basic idea of imitating a tree on a columnar structure. Further, hiding the antenna with branches and leaves attached to the tree is one of the solutions. Furthermore, the present invention is not limited to the wireless columnar structure, and one of its objects is to obtain a solution to a general columnar structure.

[0004]

Specifically, the wireless columnar structure of the present invention has the following constitution. That is, nothing at the top
In a columnar structure that fixedly supports the wire antenna,
The outer appearance of the main body of the structure
A columnar structure for wire, wherein the main body of the columnar structure is made of steel.
And the metal lath adheres to the outer circumference of the body.
And made of synthetic resin material through the metal lath
The bark is fixed and the main body of the columnar structure
A shorter thick branch member is projected, and the thick branch member has branches and leaves.
The fine branch member is coupled through a joint,
Is concealed by the branch member.

The present invention is further suitable for general columnar structures.
Use, that is, a tree-like disguise is applied to the outer periphery of the columnar body.
Both are possible.

(Operation) This wireless columnar structure is as if it were a tree, the material of the main body of the columnar structure does not appear, and the antenna is concealed by the fine branch member, but does not hinder its function. Weather resistance is obtained by the bark applied to the body

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a camouflaged columnar structure of the present invention will be described with reference to the drawings. (Structure of Embodiment) FIGS. 1 to 4 show a camouflaged columnar structure according to one embodiment of the present invention, in which a wireless tower-shaped structure in which an antenna for wireless transmission / reception is arranged is called a wireless tower. An application example is shown. That is, FIG. 1 shows the overall schematic configuration, and FIG.
FIG. 4 shows the detailed structure.

This wireless tower-shaped structure T includes a columnar body 1 made of steel, a thick branch pipe member 2 protruding from the columnar body 1, and a columnar body 1 / thick branch pipe member 2. An artificial bark 4 mounted on the outer periphery via the fixing means 3 and a fine branch member 5 connected to the thick branch tube member 2, and an antenna 6 at the upper end and the top of the columnar body 1, and further. A lightning rod 7 is attached. In addition, the bark 4 is adhered to the columnar body 1 to form the trunk portion 1A,
The bark 4 is attached to the thick branch tube member 2 to form the thick branch member 2A. In this wireless tower-shaped structure T, the columnar body 1 is fixed to the base B, and is vertically installed.

The detailed configuration of each part will be described below. Columnar body 1 The columnar body 1 is made of steel and forms a long hollow columnar body. The columnar body 1 of the present embodiment is one, and
It is tapered so that the diameter decreases from the lower part to the upper part. A fixing plate 10 is fixed to the lower end of the columnar body 1, and is fixed to the base B with anchor bolts and nuts (not shown). In the hollow portion of the columnar body 1, the wiring of the antenna 6 is arranged, and in the case where the columnar body 1 has a large diameter, a worker can enter. A door 11 is provided in the lower portion of the columnar body 1 for communication with the inside. The columnar body 1 does not exclude a tubular columnar body having a straight tubular shape in addition to the tapered tube mode. Further, in addition to one, a plurality of segment pipes may be divided into upper and lower segments, and these segment pipes may be joined together to form a single segment.

Thick-branch pipe member 2 The thick-branch pipe member 2 is made of a thin straight tube made of steel, and is joined to the outer surface of the columnar body 1 at an upper portion of the columnar body 1 at right angles or at an angle. To be done. As the joining mode, it is possible to adopt a screwing mode as well as being fixed by welding. That is, in the screwed mode, a threaded hole is formed in the columnar member 1, and a screw threaded at the end of the thick branch tube member 2 is screwed into this threaded hole to be fixed. The other end of the thick branch tube member 2 is for joining the thin branch member 5.

Fixing Means 3 and Artificial Bark 4 The artificial bark 4 is attached to the outer circumference of the columnar body 1 and the thick branch tube member 2 via the fixing means 3. More specifically, the fixing means 3 adopts a metal lath mode and is fixed to the outer circumferences of the columnar body 1 and the thick branch tube member 2 by spot welding. The metal lath 3 is preferably fixed on the entire outer surfaces of the columnar body 1 and the thick branch tube member 2, but may be partially arranged if the adhesive strength can be maintained. Artificial bark 4
Is attached to the outer circumference of the columnar member 1 and the thick branch member 2 with a predetermined thickness via the metal lath 3.

(Artificial Bark 4) In the present embodiment, the artificial bark 4 is molded into a bark having a certain thickness with a synthetic resin, particularly an unsaturated polyester resin or an epoxy resin. The unsaturated polyester resin / epoxy resin is a kind of so-called thermosetting resin for low-pressure molding. A pigment having a color of bark is mixed with the resin and applied to the outer surface of the columnar body 1 through the metal lath 3 in the uncured state. Then, it is cured by a certain heat treatment process and molded. In this molding process, unevenness is manually added to imitate the surface roughness of the bark. The strength of the bark 4 can be increased by mixing reinforcing fibers such as glass fibers into the unsaturated polyester resin or epoxy resin. Furthermore, the surface of the hardened bark 4 may be surface-treated with a gel coat to improve the weather resistance.

Twig member 5 (see FIG. 2) The twig member 5 is composed of artificial twigs and leaves, has a required strength by itself, and is connected to the thick twig member 2A. More specifically, the twig member 5 is a core material 1 that retains strength.
5 and the bark 16 and leaves 17 attached to the core material 15. As the core material 15, a material that is as light and strong as possible is used. As such a material, a light metal such as aluminum or a hard synthetic resin such as vinyl chloride resin is selected. A joint rod 18 is fixed to one end of the core material 15 in a protruding shape, and is inserted into a joint portion with the thick branch member 2A. Bark 16 and leaves 17
Is formed of a synthetic resin material, preferably bark 1
6 is molded with the same unsaturated polyester resin or epoxy resin as the trunk 1A, and the leaves 17 are molded with vinyl chloride resin. The fine branch members 5 are densely attached to the upper part of the columnar body 1, that is, near the installation position of the antenna 6, and the branches and leaves conceal the antenna 6.

(Joint Structure) (See FIG. 4) The thick branch member 2A and the thin branch member 5 are joined with a required joint structure. That is, the joint structure of the present embodiment has the structure shown in FIG.
As shown in the details thereof, a bolt insertion hole 20 is formed in the thick branch tube member 2 at the end of the thick branch member 2A,
A bark 4 is provided with a concave hole 21 continuous with the bolt insertion hole 20 and having a diameter larger than that of the bolt insertion hole 20. On the other hand, the joint rod 18 of the fine branch member 5 has the bolt insertion hole 2 of the thick branch member 2A.
A bolt insertion hole 22 is similarly opened corresponding to 0. When the joining rod 18 is inserted into the thick branch member 2A, the bolt insertion holes 20 and 22 are aligned with each other, and one bolt 25 of the fastening tool 24 is inserted into the bolt insertion holes 20 and 22 to tighten the fastening tool 24. The other nut 26 is screwed and tightened. Head of bolt 25 and nut 26
Are embedded in the recess 21 of the artificial bark 4. The joint structure is not limited to this mode, and other appropriate structures are adopted.
An example is a mode in which the joining material 18 is tightly fitted in the inner hole of the thick branch tube member 2.

Antenna 6 and the like (see FIG. 3) The antenna 6 is arranged in one or a plurality (4 in this embodiment) on the upper end of the columnar body 1 via the mounting rod 28, and in the present embodiment, these four The antennas 6 are arranged at equal intervals (90 °) and at the same height. The antenna 6 is arranged at a position as far as possible from the center of the columnar body 1 by the mounting rod 28, but is hidden by the fine branch member 5. The arrangement of the antenna 6 is not limited to this embodiment, and 18 antennas are provided in the case of two antennas.
Although it is arranged at 0 ° intervals and at 120 ° intervals in the case of three antennas, the branch members 5 are arranged between these antennas 6 in any of the modes. The lightning rod 7 is built on the top of the columnar body 1. The lightning rod 7 is not an essential item in the present invention.

With the above structure, the wireless tower-shaped structure T has a pseudo-tree structure as a whole. Then, for this artificial tree, a tree species corresponding to the surrounding environment and landscape is selected. That is, although a broad-leaved tree mode is adopted in the illustrated example, a coniferous tree may be used. If the surrounding area is a cedar forest, the form of cedar is adopted.
It should be noted that the branch members 2 and 5 are densely arranged on the upper part of the overall shape of the wireless tower structure T. The antenna 6 is hidden by the densely arranged branch members.

Installation Mode This wireless tower-shaped structure T is manufactured in a factory by dividing it into respective parts. That is, the bark 4 is adhered to the columnar body 1 and the thick branch member 2 to be manufactured. Further, the fine branch member 5 is manufactured by attaching the branches and leaves 16 and 17 to the core material 15. After that, each member is delivered to the installation site separately. At the installation site, the thin branch member 5 is attached to the thick branch member 2A of the columnar body 1 via the joint structure, and thereafter, the whole is erected by the crane device and fixed to the prefabricated base B. After that, the antenna 6 and the lightning rod 7 are hung up to the top of the columnar body 1 and attached to the top and the top of the columnar body 1.

(Operation / Effect of Embodiment) This wireless tower-shaped structure T has a pseudo tree structure, and the antenna 6 attached to the upper part thereof is hidden by the branches and leaves of the thin branch member 5. As a result, the wireless tower-shaped structure T is regarded as an ordinary tree and does not give a sense of discomfort in the landscape. Further, during assembly, the thin branch member 5 is simply and firmly fixed to the thick branch member 2 with a joint structure.

The present invention is not limited to the above-mentioned embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention. The present invention is not limited to the wireless tower-shaped structure, but is also applied to general columnar structures such as electric poles and signal pillars.

[0020]

According to the wireless columnar structure of the present invention, it has a pseudo-tree structure, and the antenna attached to the upper part thereof is hidden by the branches and leaves of the thin branch member, so that it is regarded as a normal tree and on the landscape. It doesn't make you feel uncomfortable.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view showing the overall configuration of an embodiment of a camouflaged columnar structure of the present invention.

FIG. 2 is a sectional view showing the structure of a fine branch member.

FIG. 3 is a view on arrow III in FIG.

FIG. 4 is an enlarged exploded view of a portion IV in FIG.

[Explanation of symbols]

T ... Wireless tower-like structure, 1 ... Columnar body, 2 ... Thick branch member, 3
... Fixing member (metal lath), 4 ... Artificial bark, 5 ... Twig member, 6 ... Antenna

Continued front page       (56) References Japanese Patent Laid-Open No. 5-330330 (JP, A)                 JP-A-9-58198 (JP, A)                 57-168615 (JP, U)

Claims (3)

(57) [Claims] 1. A column for fixing and supporting a wireless antenna on the upper part
In the structure, a tree aspect is provided on the outer circumference of the main body of the columnar structure.
And a main body of the columnar structure is made of steel.
A metal lath is fixed to the outer periphery of the
When the artificial bark made of synthetic resin material is fixed,
In addition, a short thick branch member is projected from the main body of the columnar structure, and a thin branch member having branches and leaves is connected to the thick branch member via a joint portion.
Combined, the antenna is concealed by the twig member
A wireless columnar structure characterized by the above. 2. The thick branch member according to claim 1, wherein the thick branch member is made of steel.
A metal lath is fixed to the outer periphery of the
Artificial bark made of synthetic resin material is fixed
Characteristic wireless columnar structure. 3. The columnar structure for wireless according to claim 1, wherein either unsaturated polyester resin or epoxy resin is selected as the synthetic resin.