JPS6213474B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tower for mounting an antenna used in a wireless communication line, and more particularly to a method for constructing a stacked tower and the tower.

Generally, a tower equipped with a parabolic antenna is permanently installed for a wireless communication line, such as a microwave communication line. However, there are cases where the communication line is cut off due to a disaster such as a typhoon and a tower collapses, or due to a failure such as a failure of communication equipment, and it may not be possible to repair it immediately. In such cases, it is normal to temporarily construct a temporary parabolic antenna mounting tower as quickly as possible to restore communication lines and use it until the permanent tower is repaired. Therefore, since the construction of such a temporary tower is urgent, a construction method that can be constructed in the shortest possible time and is highly safe should be adopted, and it is also desirable that the construction cost be low. Therefore, in the construction of such a tower, there are cases in which a method is adopted in which the constituent members of the tower body, which can be easily transported by a truck or the like, are quickly transported to the site and then stacked and combined at the site.

Conventionally, as a method of constructing this type of tower, a method as shown in FIG. 6 has been adopted. That is, as shown in the figure, a construction ball jig 35 is specially manufactured and attached to the upper side surface of the tower component 33c, and the pulley 36
This is a construction method in which the tower component 33d to be stacked next is simply lifted up via the rope 37. However, this construction method is not preferable and has the following problems. First of all, it is necessary to specially manufacture the construction ball jig 35, and in the process of stacking the tower body components, the pole jig 35 is already stacked each time for the tower body component to be lifted next. It is necessary to relocate and install it to the top of the tower body component. That is, in FIG. 6, for example, when the third tower component 33c is lifted, the construction pole jig 35 is fixed to the second tower component 33b, and the third tower component 33c is lifted up. Tower body component 33
After the stacking and joining of the parts 33c and 33c is completed, the parts 33c and 33c are moved and fixed to the third tower component 33c as shown in the figure. In this way, this construction pole jig 35
In preparation for lifting, each tower component must be removed, relocated, and reinstalled each time, which is very time-consuming. Also,
After the tower is completed, it will no longer be needed, so it will need to be removed, which is a big waste. The second problem is that during the process of lifting the tower components, there is no means to control the movement of the tower components, and the tower components are suspended in the air, making the work extremely unstable and unsafe. It is also extremely undesirable from a physical standpoint, and can be very dangerous, especially when there is wind.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to improve such drawbacks and to eliminate the need for construction pole jigs in the prior art, by skillfully utilizing a pole-equipped pedestal for a tower as a construction jig. To provide a method for constructing a stacking tower that eliminates conventional waste, greatly improves workability, and has high safety, and the tower.

According to the present invention, the tower body constituent members of the tower to be constructed are made into units, each tower body unit is formed by a framework having a guide rail in the longitudinal direction on one side thereof, and the tower body unit is formed by a framework having a guide rail in the longitudinal direction on one side thereof, and is capable of slidingly fitting with the guide rail. Attach a pedestal with poles for the tower to be constructed to the tower unit and use it as a pole jig for tower construction, and finally fix it to the upper side of the top tower unit as an antenna mounting pole. This is achieved by

Next, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

1 to 5 are diagrams showing embodiments of the present invention. FIG. 1 is a perspective view of a tower unit 1 having a triangular cross section and formed into a unit. An end horizontal member 1c that fixes 1a to each other and a corner support 1a
It consists of a diagonal member 1d fixed in a sawtooth shape between them, and a tower branch line attachment hook 1e fixed to the outside of the upper part of the corner support 1a, and further extends in the longitudinal direction on one side and has a Z-shaped cross section. A pair of guide rails 1f are attached in parallel with their edges facing each other. The flange 1b is provided with a bolt hole 1g and is used for overlapping a similarly formed flange of an adjacent tower unit to bolt the tower units together through the bolt hole.

FIG. 2 is a perspective view of the pole-attached pedestal 3 of the tower, which is fixed to the top of the stacked tower unit and an antenna, such as a parabolic antenna (see FIG. 5), is attached to the pole 3a. As shown in the figure, this pole-equipped pedestal 3 consists of a pedestal 3b framed in a hexahedral shape, and a pole 3a fixed upright at approximately the center of the top surface of the pedestal, and is further mounted on one side of the pedestal 3b parallel to the longitudinal direction of the pole 3a. In this state, a pair of fitting members 3c having a U-shaped cross section are attached parallel to each other with the groove portions 3'c facing outward. This fitting member 3c is connected to the tower unit 1 as shown in FIG.
The guide rail 1f is formed to slidably fit into the guide rail 1f, and is further provided with a bolt hole 3''c.Furthermore, a rope attachment hook 3d (first (See Figure 3) is attached to the top surface of the pedestal 3b (see Figure 3).
Although the upright surface (a) is not shown to simplify the drawing, it also serves as a foothold for workers, so appropriate members such as mesh plates are actually attached to it.

Figure 3 shows the tower unit 1 and the pedestal with poles 3.
and the respective guide rails 1f and fitting members 3c.
FIG. 3 is a top view showing a state in which the parts are slidably combined with each other via the parts. In the figure, above the tower unit 1, pulleys 5a and 5b, for example, a single pulley with a suspension ring, can be attached to the end horizontal member 1c using a commonly used appropriate attachment (for example, wire, etc.) that can be easily attached and detached. can. One end of the rope 7 hooked to the pulleys 5a and 5b is connected to the hook 3d, and the other end is led downward (toward the ground). The pole-equipped pedestal 3 is configured to move up and down via this rope 7.

Next, the stacking construction method of the tower will be explained based on FIG. In Fig. 4 A, the pedestal with pole 3
The lowermost tower unit 1', which is a combination of (as they are relatively short, they can be stacked manually) and bolted together via flanges 1b (see Figure 1), and then the tower branch line 11 is attached to the branch line attachment hook 1e (see Figure 1) at the top of the second tower unit. The ends of the pulleys 5a and 5b are fixed to the ground via appropriate members.
As explained in Fig. 3, the second column unit 1''
Then, the rope 7, which has been previously connected to the pole-equipped pedestal 3, is engaged with the pulleys 5a and 5b, and its ends are guided to the ground. Next, the third tower unit 1 is brought close to the pole 3a from the direction of arrow A, and placed on the pedestal 3b with the pole 3a sandwiched between the guide rails 1f of the tower unit 1. Place it. Next, the guide rail 1f of the tower unit 1 and the horizontal member 1 are attached to the pole 3a.
c or diagonal member 1d at two locations, upper and lower, with appropriate mounting tools,
For example, a strong wire or a simple fixture such as a U-bolt is used to temporarily connect the parts in a rotatable manner. Next, the end 7a of the rope 7 is pulled toward the ground, and the pole-equipped pedestal 3 on which the tower unit 1 is mounted is lifted along the guide rail 1f. Depending on the weight of the lifting tower unit, the rope 7 may be pulled manually or by a manual or power winch (not shown) installed at the bottom of the lowermost tower unit.
These winches (not shown) may also be used. This guide rail 1f completely restricts the movement of the pole-equipped pedestal 3 in directions other than the vertical direction, so that the tower unit 1 can be lifted up extremely safely and quickly even in strong winds.
In FIG. 4B, when the lower surface of the third tower unit 1 has been pulled up to the upper surface position of the second tower unit 1'', the end 7a of the rope 7 is fixed to fix the pole-equipped pedestal 3, and Turn the tower unit 1 180° in the direction of arrow B (the opposite direction is also possible), and connect the second tower while loosening the temporary connecting member 6 between the pole 3a and the third tower unit as appropriate. Mutual flanges 1 on body unit 1''
b are stacked so that they match, and are bolted together through the bolt holes 1g (see FIG. 1) of the flange 1b. Thereafter, the pole-equipped frame 3 is lowered onto the base plate 9, and then the pulleys 5a and 5b are moved to the upper part of the third tower unit 1 as shown in FIG. 4C. This work of relocating and attaching the pulleys 5a and 5b can be done by easily attaching and detaching the pulleys 5a and 5b as explained in FIG. Compared to the installation work, it can be done in a very short time and easily. continue,
The same process as above is repeated from the fourth to the last tower unit to sequentially stack and connect them.Finally, the pole-equipped pedestal 3 is lifted and the bolt hole 3''c (Fig. 2) is inserted into the top side of the top tower unit. ) to complete the construction of the stacking tower.As shown in Figure 5, as a result of using the above stacking tower construction method, each stacked tower unit 1 A pair of guide rails 1f that are linear in the longitudinal direction are formed on one side, and a pole-equipped frame 3 that is slidably fitted to the guide rails 1f is fixed to the top side of the uppermost tower unit 1. Furthermore, the method of constructing a stacking tower according to the present invention and its tower are as useful during disassembly as during construction, and the workability is greatly improved and construction work can be carried out quickly and safely. This also contributes to reducing manufacturing costs.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the tower unit, Fig. 2 is a perspective view of the pedestal with poles, and Fig. 3 is a top view showing the combination of the tower unit and pedestal with poles in Figs. 1 and 2. Figure 4 A to C are explanatory diagrams of the construction method of the stacking tower, Figure 5 is a completed diagram of the stacking tower,
FIG. 6 is an explanatory diagram of a conventional method of constructing a stacked construction tower. 1, 1', 1'', 1... tower unit, 1b...
...Flange, 1f... Guide rail, 3... Frame with pole, 3a... Pole, 3b... Frame, 3c
... Fitting member, 5a, 5b ... Pulley, 6 ... Temporary connection member, 7 ... Rope, 9 ... Board, 11 ... Tower branch line.

Claims (1)

[Scope of Claims] 1. In a method of constructing a stacked tower in which tower units are successively stacked and connected, each tower unit is formed by a framework having a guide rail in the longitudinal direction on one side, and the maximum to be constructed is The lower tower unit is fixed upright on a portable foundation member, and a pole-equipped pedestal is attached to the lowermost tower unit so that it can be slidably fitted to the guide rail, and the tower units are stacked above the tower unit. The second tower unit to be connected is temporarily connected rotatably to a pole and placed on a pole-equipped pedestal, and the pole-equipped pedestal on which the second tower unit is mounted is lifted by any lifting means. Lift it above the bottom tower unit and lift the second tower unit above with the pole as the center.
Turn it 180 degrees and align it on top of the bottom column unit and join them to build the second column unit, and then build the top column unit from the third column unit in the same way. A method for constructing a stacked tower, characterized by repeating the process and stacking them one by one, and finally fixing a pedestal with poles to the top tower unit. 2. A stacking type tower formed by sequentially stacking a plurality of tower units 1, wherein a pair of guide rails 1f forming a straight line in the longitudinal direction are formed on one side of each of the stacked tower units 1, and the guide rails 1f are formed in a straight line in the longitudinal direction. A pedestal with poles 3 slidably fitted to the rail 1f is fixed to the top side surface of the uppermost tower unit 1, and each of the tower units 1 has a plurality of corner supports 1a constituting the unit 1. 1g bolt hole on the end face of
flanges 1b each having a diameter are fixedly installed and are bolted to each other via the flanges 1b, and each guide rail 1f of each tower unit 1 is formed in a Z-shaped cross section, with side edges facing each other. The pole-equipped frame 3 has a U-shaped cross section on one side thereof, and the pair of guide rails 1f
A stacking type tower characterized in that a pair of fitting members 3c are provided, each having a groove portion 3'c to be fitted with a side edge of the tower.