JPS594767A - Iron tower or communication - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a communication tower that can be easily moved and erected and adapted to the terrain conditions.

(2) Background of the Technology There are many demands for erecting steel towers for communications, various electronic devices, etc. in a manner that is easily transportable. For example, communication is performed sequentially from a moving point to other points or between bases.

This is the case when you need to move for a short period of time or when you need to set up an emergency line due to a disaster, etc. In such cases, it is necessary to easily erect and remove the steel tower in a short time, and sometimes it is necessary to be able to move it using only human power.

(3) Prior Art and Problems Conventionally, erecting this type of communication tower requires a long time to build a strong foundation on the ground and construct a sturdy tower, which is inappropriate.

Alternatively, it is possible to use branch wires to keep the steel tower upright, but this requires a large installation area because the branch wires are stretched at the top and middle of the tower, and it depends on the topography, such as in mountainous areas. There is a problem that the installation area is limited.

From the above, the simplest method is to load the entire storage container 2 inside a relatively large frame 1, as shown in Figure 1, and to prevent it from tipping over due to wind pressure, etc., install a communication antenna on the upper side of the frame. It is also possible to install a parabolic antenna (parabolic antenna) 3, but in addition to the preparation of sandbags, there are inconveniences such as obstacles such as trees and stones because the antenna is not high enough above the ground.

(4) Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems. 2. The purpose of the present invention is to provide a structure that is portable and easy to move, particularly capable of being erected by human power alone, and that can be deployed according to the terrain. The purpose is to provide communication towers that can be installed.

(5) Structure of the Invention The above object is achieved 9. According to the structure of the present invention, there is provided a frame-column-shaped base for completely erecting a steel tower, and a frame-column-shaped base for erecting the entire steel tower;
at least three split-leg type support legs, each of which can be extended by detachably connecting a plurality of leg members, and lobes and chains that can be set to a predetermined length to restrain the base and the support legs; The steel tower can be placed on the top of the base and erected easily and reliably.

(6) Embodiments of the Invention Below, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 2 is a perspective view of an example of a communication tower according to the present invention, and shows the antenna tower in a collapsed state. In the figure, a base 51 protruding from the ground is provided below a columnar base 5 having a rectangular frame body, and monkey bars 52 are provided at the four corners. An overhanging plate member 53 is provided at each upper corner, and a pair of bearings 54 (only one of which is shown in gold in the figure) is fixed to the upper surface.

A manual winch 55 is attached to one side of the base 5, and the other side is open as will be described later.

Two holes are bored in the overhanging plate material 53.

A shaft bolt 61 is inserted into the upper hole, and this bolt 61
A column-shaped support leg 6 is attached, the end of which is pivotably supported and tiltable.

A ground plate 62 is similarly rotatably attached to the other end of the support leg 6, that is, the downward direction, and an intermediate support leg 63 is attached to the middle part with seven langes 64.
It is removably attached with bolts and nuts. This intermediate support leg 63Vi can be removed, but it is also possible to extend it by connecting a plurality of them in tandem. Support leg 6
In this case, overhanging plate materials 53 are provided at the four corners of the base 5,
Although they are attached to each side, only two sides are shown facing down in the figure to make it easier to understand.

As shown in the figure, these supporting legs 6 are spread out from the corner to the end with the shaft bolt 61 at the center, and a shackle 66 attached to the lower hole of the plate 53 is inserted between the rotation center of the ground plate 62 and the shackle 66. The third chains 73 are connected to the hooks and restrained.

One end of the chain is engaged with each ring using a hook, etc.

The other end is engaged with the turnbuckle 74 at a desired length position and tensioned.

A shaft 81 is mounted and supported on the bearing 54 on the base 5, and is supported by a shaft 81, which is constructed of a combination of angle irons in a prismatic shape and protrudes completely through the steel tower 8 near the center of gravity. The length on the right side of the figure is approximately equal to the height of the base 5. A wire rope 82 is attached to the right end of the steel tower 8 in the figure, and the other end passes below the base 5 and is wound around the winch 55.

At the left end of the steel tower 8 in the figure, the antenna device 9 has an angle adjustment device 91,
A transmitting/receiving device 92 is attached.

Each of the configurations according to the present invention described above can be disassembled into a single unit, and each can be transported. Therefore, it is transported to the required location by manual transport using the width of a vehicle, etc., as necessary. Then, the base 5 is installed vertically at the point where it is to be erected, the support legs 6 are opened, and the intermediate support legs 63 are appropriately set so as to be in a stable state, and the ground plate 62 is grounded in accordance with the topography.

The wire rope 82 is supported by the upper bearing 54, and a wire rope 82 is attached to one end thereof, and the antenna 9. Attach all transmitting/receiving devices 92.

In this state, when the winch 55 is operated to wind up the wire rope 82, the steel tower 8 rotates around the shaft 81, with the right side in the figure pulled downwards from the base 5, and the antenna 9 side rotates upward.
That is, it rotates in the standing direction. If the winch 55 is wound up, the steel tower 8 will eventually become vertical and the lobe 82 side will enter the inside of the base 5, so the steel tower 8 is fixed to the base 5 with bolts, hooks, etc. (not shown).

In this state, the base 5. Steel tower 8. Since the heavy loads such as the antenna 9 act in the direction of gravity, loads distributed in the direction of opening act on the supporting legs 6, but since they are restrained by the chains, the chains are properly tensioned and stability is reduced. Since the tower body does not move or vibrate due to external forces such as wind force acting on the tower body, good communication conditions can be maintained. Of course, the direction of the black directional antenna 9 of the parabolic antenna is finely adjusted and positioned by remotely controlling the angle adjustment device 91 from below.

The chain support for the base 5 is particularly stable against torsion because it is supported by four chains, and all of the chains are engaged in a tensile direction, and the supporting legs 6KFi compressive force acts, so it is in a stable upright state. .

When moving or removing the main steel tower, remove the fixation between the steel tower 8 and the base 5, and operate the winch 55 to fully rewind, the tower 8 will be in a horizontal state, and the antenna 9 etc. will be removed, and then each By disassembling it into constituent units, it can be easily transported or stored.

Figure 3 shows the above-mentioned steel tower in an erected state. Figure 3 shows the case where it is installed on a slope, with the supporting legs 6 on the mountain side being shortened, and the supporting legs 6 on the valley side being extended and extended, and the opening angle of each leg is determined to be optimal. There is. The chain is also engaged with the longer main part at the point where the chain becomes longer.

The leg shown in Fig. 4 is used when the support leg 6 is installed at a location where the opening range is not sufficient, and the chain 75 is engaged with the stake 10 driven into an appropriate position to connect the branch line. An example is shown below.

FIG. 5 shows a different embodiment, in which the chain 75 does not use the supporting leg 6.
Although it has been described as a material when it is secured and locked to the pile 10 as a branch line, it is possible to use materials such as those made of light alloys such as aluminum, and not only square columns but also cylinders, etc. It may also be a combined steel tower that can be separated as needed. In addition, if the tower is telescopically expandable, it is possible to install communication equipment at even higher places, and it can also be made smaller when it is portable.

The chain may be a rope such as a wire rope or a fiber rope, and the holding part may be simple, and the length may be adjusted to an appropriate length using a wire clip.In this way, a completely arbitrary length can be set steplessly. can.

The winch is not limited to the mechanical type, but may also be an electric type with all power sources such as batteries and a motor generator. Furthermore, it is possible to quickly erect large steel towers, and it can also be used for telescopic towers. −
It is possible.

Although the number of support legs is described as four, the minimum number should be three, and more stable support is possible.Depending on the installation condition, it may be possible to extend support from the top of the tower as full support for the branch line. When engaged, stability can be further improved.

(7) Effect of invention As described in detail above, the communication tower according to the present invention is provided.

By providing tiltable support legs around the frame columnar base, restraining the base and support legs with lobes, chains, etc., and erecting the steel tower against this base, it is extremely easy and stable. construction, and also its movement and storage]1
1> The practical effects that can be achieved in a decomposed state are remarkable.

It goes without saying that the communication tower of the present invention can be used not only for communication but also for various electronic devices such as foot measuring devices, observation devices, and optical devices.

[Brief explanation of the drawing]

Fig. 1 is a conventional example, Fig. 2 is a perspective view of a main part of an embodiment of a communication tower according to the present invention, Fig. 3 is an upright state, Fig. 41,
FIG. 5 shows a different embodiment with the steel tower omitted. In the figure, 5 is the base, 55-inch winch, 6 is the support leg, 71-75
is a chain, 8 is a steel tower, and 9 is an antenna.

Claims (1)

[Scope of Claims] A frame-column base for completely erecting a steel tower, and at least a plurality of leg members, each of which is rotatably supported around the base and can be extended by being connected to a plurality of leg members that can be fully attached and detached. three spread legs, a rope or chain that can be installed to a certain length to restrain between the base and the supporting legs, and the steel tower on the top of the base.