JP3679654B2 - Fake tree communication tower - Google Patents

Description

[0001]
【Technical field】
The present invention relates to a communication tower disguised as a tree, that is, a pseudo-tree communication tower.
[0002]
[Background]
In the present age when various communication devices such as mobile phones are widely used, it is required to install communication antennas everywhere so that communication is possible anywhere. In places where buildings, bridges and other structures exist, antennas can be attached to these existing structures.
[0003]
However, in a place where there is no existing structure, a column or tower (which is called a communication tower) for mounting an antenna must be erected. Because the communication tower is artificial, it may not match the landscape or damage the landscape. Therefore, there is a natural tower, for example, a communication tower disguised as a tree, but this communication tower must withstand wind and snow.
[0004]
DISCLOSURE OF THE INVENTION
The present invention provides an artificial tree communication tower devised to withstand wind and snow or devised to prevent the occurrence of an accident due to wind and snow.
[0005]
In the pseudo-tree communication tower according to the present invention, a metal branch mounting pipe is installed at a base end in a direction in which a branch is to be extended at a position where a branch of a metal support column which is a trunk standing on the ground or a structure is to be attached. It is fixed by welding, and a pipe that becomes a branch made of synthetic resin is connected to this branch mounting pipe.
[0006]
Since the metal branch attachment pipe for attaching the branch is fixed to the metal support by welding, the branch attachment pipe is firmly fixed to the support. Since a branch pipe is connected to the branch attachment pipe, the attachment of the branch is also strong.
[0007]
In one embodiment, the branch mounting pipe and the base end of the branch pipe are inserted into the coupling cylinder, the branch mounting pipe and the coupling cylinder, and the base end of the branch pipe and the coupling cylinder. The body is fixed by fasteners (for example, bolts and nuts). Since the branch pipe is connected to the branch attachment pipe using the connecting cylinder, the connection of the branch pipe becomes strong.
[0008]
Furthermore, in the present invention, the stay provided on the branch attachment pipe and a predetermined portion of the branch pipe are connected by the fall prevention rope, and this rope passes through the branch attachment pipe and the branch pipe.
[0009]
Even if the branch pipe is about to fall for some reason or breaks in the middle, the branch pipe is connected to the branch mounting pipe by a rope passing through the inside of the pipe, so it will not fall completely. Occurrence can be prevented.
[0010]
A large branch can also be constituted by connecting a plurality of synthetic resin pipes. In this case, the stay of the branch mounting pipe and the predetermined portion of the synthetic resin pipe provided at the forefront are connected by a fall prevention rope, and this rope is connected to the branch mounting pipe and the plurality of synthetic resin pipes. Configured to pass through.
[0011]
In one embodiment, a synthetic resin pipe constituting the branch is covered with a synthetic resin subjected to pseudo wood processing.
[0012]
A small branch is attached to a large branch, such as a medium branch on a large branch and a branch on a large or medium branch. In one embodiment, such attachment of the middle branch or twig is as follows.
[0013]
A hole is made in the synthetic resin pipe constituting the main branch or the middle branch, and the synthetic resin pipe or twig constituting the middle branch is inserted into and joined to the hole. It is covered with synthetic resin that has been processed with pseudo wood.
[0014]
According to the present invention, the attachment of pseudo leaves to the twig has the following configuration. A twig is provided directly on the main branch or through a middle branch or twig, and the tip of the most advanced twig is inserted into a hole formed in the petiole of the pseudo leaf, and the tip of the twig and the pseudo leaf A heat-shrinkable tube is provided so as to cover the petiole, and this heat-shrinkable tube is heated to shrink. The hole may be open at both ends or closed at one end.
[0015]
The shrinkage of the heat-shrinkable tube makes it difficult for the pseudo leaves to come off the twigs.
[0016]
In a preferred embodiment, a thicker retaining portion is formed at the tip of the twig than the other portions, and this retaining portion is exposed through a hole in the foliar petiole. This makes it more difficult for the pseudo leaves to come off.
[0017]
In one embodiment, a working structure is provided on the top of the column. Branches and pseudo leaves are provided to hide the working structure.
[0018]
In other embodiments, a communications antenna is attached to the top of the support or other location (eg, a work structure).
[0019]
【Example】
1 and 2 show the whole pseudo tree communication tower.
[0020]
A metal column 10 is erected on a concrete foundation provided on the ground. In some cases, the column 10 may be erected on a structure such as a building or in an appropriate position. The support column 10 is configured by connecting a plurality of steel pipes (or iron pipes) 10A to 10C via flanges provided at both ends thereof. Of course, the support column 10 may be constituted by a single steel pipe. The surface of the column 10 is painted in a color that looks like a tree (for example, brown), or the outer periphery of the steel pipe is covered with a synthetic resin (for example, FRP) that is colored brown, so that the surface of the synthetic resin represents the bark. Mold (pseudo wood processing). The column 10 represents the trunk of the pseudo tree.
[0021]
Protrusions (scaffolds, footrests) 11 are provided on the column 10 using bolts or the like at appropriate intervals so that they can be moved up and down for maintenance, inspection, and the like. The column 10 is hollow, and a communication line, a ground line, etc. pass through the inside of the column 10. For maintenance and inspection of these electrical facilities, boxes 12 and 13 with doors are provided at the lower and upper portions of the column 10. In addition, a lightning rod 14 is provided on the top of the column so as to face directly above. The lightning rod 14 is naturally grounded.
[0022]
A structure 20 for work such as maintenance and inspection is provided on the upper portion of the column 10. The structure 20 includes horizontal frames 21 and 22 that extend radially outward from the support column 10 at two upper and lower positions, circular frames 23 and 24 that connect the tips of the horizontal frames 21 and 22, and these circular frames. It consists of a vertical frame 25 connecting 23 and 24, and a wire mesh 26 as a floor stretched on the lower horizontal frame 21. These frames 21 to 25 and the wire mesh 26 are made of metal (iron, steel, etc.). The communication antenna 29 is attached to a part of the side surface of the working structure 20. Needless to say, the shape, number, direction, and the like of the antenna 29 are determined in consideration of the communication function to be achieved. The work structure 20 is also painted brown.
[0023]
Several (plural) large branches 30 are provided on the upper portion of the support column 10, and these large branches 30 generally extend obliquely upward. A number of middle branches 40 are attached to each branch 30. Several twigs 50 are further attached to the middle branch 40. The twig 50 may be attached to the large branch 30. A pseudo leaf 60 is attached to the tip of the twig 50. Although the pseudo leaves 60 are hiba in this embodiment, they may be any kind of tree leaves. However, leaves of evergreen trees are preferred. Needless to say, the branches are not limited to three stages of large branches, middle branches, and twigs, but may be four or more stages. In any case, a plurality of branches are attached in order from a large branch to a small branch.
[0024]
The number of these branches (including large branches), the mounting position, the extending direction, and the leaves may be determined by comprehensively considering from various viewpoints. For example, the slightly lower branches and leaves are provided so as to hide the work structure 20. Slightly upper branches and leaves are provided to hide the lightning rod 14. Further, the branches and leaves are provided so as not to obstruct or interfere with the communication by the antenna 29. Since the artificial leaf or its petiole may contain metal fibers and may cause radio interference, the antenna 29 is provided so as to be exposed to the outside of the artificial leaf or the like. Further, the leaves and branches are provided in consideration of the strength of the column 10 and other parts, that is, they can withstand the load caused by wind and snow. In the drawing, only a part of branches and leaves is shown for the sake of simplicity of expression.
[0025]
3 to 5 show the structure of the branch and how the branch is attached. The branch shown here extends from the bottom of the branch 30 shown in FIG.
[0026]
A hole is drilled at a position where the branch 30 of the support column 10 (steel pipe 10B) is to be attached, and the base end of the metal branch attachment tube 15 is inserted into this hole, and the branch attachment tube 15 is fixed to the support column 10 by welding. (The weld location is indicated by 15A). The metal branch mounting pipe 15 is, for example, an iron pipe or a steel pipe. The branch attachment tube 15 is fixed in a posture toward the direction in which the large branch 30 should be extended.
[0027]
On the other hand, the large branch 30 is constituted by connecting (connecting) three synthetic resin (for example, FRP, vinyl chloride, etc.) pipes 31, 32, 33. The pipes 31, 32, and 33 are narrowed in this order. The branch 30 shown here is the longest, so it is formed by connecting three pipes. However, even if two pipes are connected to form a branch, one branch is used to form a branch. Alternatively, four or more pipes can be connected to form a branch.
[0028]
A metal connecting cylinder 16 is provided. This cylinder 16 is also an iron pipe or a steel pipe. The lower ends of the branch mounting pipe 15 and the lowermost pipe 31 are inserted into the connecting cylinder 16. The tip of the branch mounting pipe 15 and the lower end of the pipe 31 are almost in contact with each other in the cylindrical body 16.
[0029]
Holes 17A and 18A are formed in the branch mounting pipe 15 and holes 17B and 18B corresponding to the cylindrical body 16, respectively. Connection bolts 17 and 18 are passed through these holes 17A, 17B, 18A and 18B, respectively, and tightened with nuts. ing. The two bolts 17 and 18 are arranged orthogonally. As a result, the cylinder 16 is firmly fixed to the branch mounting pipe 15.
[0030]
Similarly, the connecting bolt 36 passes through the hole formed in the lower end portion of the pipe 31 and the upper portion of the cylindrical body 16, and is tightened with a nut. As a result, the lower portion of the pipe 31 is connected to the cylindrical body 16.
[0031]
The lower end portion of the pipe 32 is inserted into the tip portion of the pipe 31, holes are formed in these overlapping portions, connecting bolts 37 are passed through these holes, and tightened with nuts. As a result, the pipe 32 is connected to the pipe 31.
[0032]
Similarly, the lower end portion of the pipe 33 is inserted into the tip end portion of the pipe 32, holes are formed in these overlapping portions, the connecting bolts 38 are passed through these holes, and the nuts are tightened with nuts. As a result, the pipe 33 is connected to the pipe 32.
[0033]
A U bolt 34 is attached to the tip of the pipe 33, and a lower end of a rope (including a wire, preferably made of metal or steel) 34A is connected to the U bolt 34. The upper end of the rope 34 </ b> A is connected to a proper position at the top of the support column 10 or a proper position of the structure 20.
[0034]
A round bar (iron or steel bar) (stay) (may be a bolt) 19 is fixed in the radial direction inside the distal end portion of the branch mounting pipe 15. A fall prevention rope (including a wire, preferably made of steel) 39 passes through the pipes 31, 32, 33. One end of this rope is fixed to the round bar 19, and the other end is connected to the bolt 38.
[0035]
These cylindrical body 16, pipes 31, 32, and 33 are covered with a synthetic resin (for example, FRP) 35 that is processed with a pseudo-wood (colored brown) (in FIG. 3, the synthetic resin 35 is not shown). )
[0036]
Thus, the branch attachment pipe 15 is used to attach the large branch 30, and this pipe 15 is fixed to the support column 10 by welding. Therefore, the large branch 30 is firmly attached to the support column 10 with high strength. Since the pipe 31 of the branch 30 and the branch attachment pipe 15 are inserted into the coupling cylinder 16 and are connected to each other by bolts (fasteners), the strength of this portion is also high.
[0037]
Further, the large branch 30 is formed by connecting a plurality of synthetic resin pipes 31, 32, 33. The most advanced pipe 33 and the branch mounting pipe 15 are firmly connected by a fall prevention rope 39. Therefore, even if the branch is broken in the middle, it will not fall and the occurrence of an accident can be prevented. This is the same even when the branch is composed of one pipe. In the pipe 33, one end of the rope 39 is hung on a connecting bolt 38 between the pipes 33 and 32, and another bolt or a round bar (stay) is fixed in the pipe 33, and the rope is attached to the bolt or the round bar. One end of 39 may be tied.
[0038]
Further, the rope 34A is tied to the tip of the branch 30 and is pulled upward by the rope 34A, so the safety is further enhanced.
[0039]
Next, referring to FIG. 6, regarding the attachment of the middle branch 40 to the branch 30 and the attachment of the branch 50 to the middle branch 40 (or branch 30), the pipe 32 constituting the branch 30 and the pipe 32 are attached. A description will be given taking the pipe 42 constituting the middle branch as an example.
[0040]
A hole 32A is formed in a portion where the middle branch 40 of the pipe 32 is to be provided (see FIG. 3, FIG. 3 also shows holes 31A and 33A formed in the pipes 31 and 33). A base portion of a synthetic resin pipe (for example, FRP, vinyl chloride, etc.) 42 forming the middle branch 40 is inserted into the hole 32A. The outer peripheral surfaces of the pipes 31 to 33 and the pipes 42 and 43 including the insertion portion of the pipe 42 are all covered with a synthetic resin (for example, FRP) 35. The synthetic resin 35 is processed with pseudo wood. In this way, the pipe 42 is firmly fixed to the pipe 32 because the periphery of the pipe 42 including the portion inserted into the hole of the pipe 32 is hardened with the synthetic resin.
[0041]
Similarly, the attachment to the middle branch 40 (or the branch 30) of the twig 50 is also perforated at the position where the branch 50 of the pipes 42 and 43 (or the pipe 33 constituting the branch) of the middle branch 40 is to be attached. , The base of the twig 50 is inserted into this hole, and the entire periphery thereof is covered with the synthetic resin 35. Twig 50 is also made of synthetic resin.
[0042]
Finally, attachment of the pseudo leaves 60 to the twigs 50 will be described with reference to FIGS.
[0043]
The tip 51 of the twig 50 is preferably swollen more than the other parts, is formed in a conical shape, and is prevented from being removed.
[0044]
On the other hand, a hole 62 is formed in the base of the petiole 61 of the pseudo leaf 60. The hole 62 is shown with both ends open, but there are also those with one end closed.
[0045]
The base portion of the stem 61 of the pseudo leaf 60 and the tip of the twig 50 are inserted into a heat-shrinkable tube (for example, made of polyethylene) 70, and the tip of the twig 50 is inserted into the hole 62 of the stem 61 in this state. The retaining 51 of the twig 50 passes through the hole 62 and protrudes from the other end. In this state, the heat-shrinkable tube 70 is heated. The tube 70 contracts, and is almost exactly along (adhering to) the outer surfaces of the petiole 61 and the twig 50, and these are tightened slightly. In this way, the pseudo leaves 60 are not easily detached from the twigs 50. The tube 70 is preferably green, which is approximately the same as the pseudo leaves 60. The twig 50 is generally brown.
[Brief description of the drawings]
FIG. 1 is a front view showing an entire pseudo tree communication tower.
FIG. 2 is a plan view showing the whole pseudo tree communication tower.
FIG. 3 is a front view showing an internal structure of a large branch.
4 is an enlarged front view showing a part of FIG. 3; FIG.
FIG. 5 is a cross-sectional view of a part of the support and the branch shown in FIG. 4;
FIG. 6 is a partially broken perspective view showing a mounting structure between branches.
FIG. 7 is an assembled perspective view showing a mounting structure of pseudo leaves.
FIG. 8 is a cross-sectional view showing a mounting structure of pseudo leaves.
[Explanation of symbols]
10 props
15 Branch mounting pipe
16 Coupling cylinder
30 branch
35 Coated synthetic resin
39 Fall prevention rope
40 Nakaeda
50 twigs
60 fake leaves
62 holes
70 heat shrinkable tube

Claims (9)

A metal branch mounting pipe is fixed at the base end by welding at the base end in the direction where the branch should be extended at the place where the main branch of the metal support column standing on the ground or structure is to be installed. boughs pipe as a limb of a synthetic resin tube is coupled,
The stay provided on the branch mounting pipe and a predetermined portion of the branch pipe are connected by a fall prevention rope, and this rope passes through the branch mounting pipe and the branch pipe.
Mimicry communication tower.   The branch mounting pipe and the base end of the branch pipe are inserted into the coupling cylinder, and the branch mounting pipe and the coupling cylinder are fastened, and the base end of the branch pipe and the coupling cylinder are fastened. The pseudo-tree communication tower according to claim 1, which is fixed by a tool. A large branch is formed by connecting a plurality of synthetic resin pipes, and the stay of the branch mounting pipe is connected to a predetermined portion of the synthetic resin pipe provided at the foremost end by a fall prevention rope. mounting tube and passes through the plurality of synthetic resin pipe,擬木communication tower according to claim 1. A twig is provided directly on the large branch or via a middle branch or a twig, and the tip of the most advanced twig is inserted into a hole formed in the petiole of the pseudo leaf, and the tip of the twig and the pseudo leaf The pseudo-tree communication tower according to any one of claims 1 to 3 , wherein a heat-shrinkable tube is provided so as to cover the petiole, and the heat-shrinkable tube is heated and shrunk. Thick retained portion from the other portion to the tip portion of the twigs and is formed, retaining portion is exposed through the holes of the petiole擬葉,擬木communication tower according to claim 4. The pseudo-tree communication tower according to any one of claims 1 to 3 , wherein the synthetic resin pipe constituting the branch is covered with a synthetic resin subjected to pseudo-tree processing. A hole is made in the synthetic resin pipe constituting the main branch or the middle branch, and the synthetic resin pipe or twig constituting the middle branch is inserted into the hole and joined together. the included covered with擬木processed synthetic resin,擬木communication tower as claimed in any one of claims 1 to 6. The pseudo-tree communication tower according to any one of claims 1 to 7 , wherein a communication antenna is attached to an upper predetermined portion. The pseudo-tree communication tower according to any one of claims 1 to 8 , wherein a work structure is provided on an upper portion of the support column.

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