JPH0342727Y2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to a communication antenna tower, and particularly to a support structure for a column in a simple construction antenna tower.

(2) Background of the technology A simple construction type antenna tower that can be transported to a relay point and erected in an emergency includes a branch type antenna tower that is supported by wires from three or four sides around the pillar or a base that has support legs. There is a free-standing antenna tower with pillars erected. When constructing free-standing antenna towers at relay points, the support legs of the base must be level-adjustable to cope with the slope or unevenness of the ground at the construction site, and the supporting structural members of such columns must be It is desired to reduce the number of parts, improve transportability, and facilitate assembly.

(3) Conventional technology and problems Figure 1 shows a conventional easily constructed freestanding antenna tower. A column 2 having an antenna 1 at the top is supported by a base 3. Support legs 4 are rigidly fixed to the base 3 at corners of the base 3 corresponding to the four corners of the pillar 2. A level adjustment jack 5 is provided at the end of each support leg 4. A central jack 6 is provided at the bottom of the base 3. In the pillar support structure of such an antenna tower, the supporting legs of the base are of a rigid structure, so construction on sloped land is not easy, and especially on steep slopes that exceed the adjustment range of the jack, it is necessary to level the ground. Moreover, the construction work was troublesome. Furthermore, the support leg structure with such jacks has a large number of parts, is heavy, takes time to transport, and is not easy to assemble.

(4) Purpose of the invention The present invention was devised in view of the above-mentioned shortcomings of the prior art, and it is an object of the present invention to provide a support structure for communication antenna columns that has a simple structure, good transportability, and can be easily constructed even on steep slopes. purpose.

(5) Structure of the invention In order to achieve the above object, the support structure for a communication antenna pole of the present invention includes a base that supports one side of the communication antenna pole and a base that supports the pillar. The support leg is hingedly connected to the upper part and is arranged inclined in the front-rear direction and the left-right direction, and tension members are provided between the ends of the adjacent support legs and between the ends of the support leg and the lower part of the base. It is characterized by being combined.

(6) Embodiment of the invention FIG. 2 is a perspective view of the column support structure of the antenna tower according to the invention. A column 12 having an antenna 11 at the top is fixed to and supported by a base 13. Base 1
3 is constructed by constructing a rectangular outer frame of angle material, pipe material, etc., and further reinforcing the middle part with a reinforcing material (not shown). When supporting the column 12 on the base 13 and installing it upright, first place the bottom of the column 12 on the base 13.
The column 12 is supported at a predetermined pivot position, and the column 12 is laid down, and then the column 12 is erected by the winch 17 via the wire 18, using the pivot position as a fulcrum. The pillar 12 is stretched. Pillar 1
When the front side of the pillar 2 touches the base 13 and stands upright, the pillar 12
is fixed to the base 13 by suitable fixing means such as bolts. Support legs 14 are hingedly connected to the upper part of the base 13 and are tilted in the front-rear direction and the left-right direction. The support leg 14 may be made of pipe material or angle material and divided into two or more stages so that a part can be removed and added to, or it may have an expandable structure so that the length of the support leg 14 can be changed. desirable. The ends of adjacent support legs 14 are all connected by chains 15, respectively. 16 is a turnbuckle. Further, the end of each support leg 14 and the bottom of the base 13 are similarly connected by a chain 15. Each chain 15 tensilely connects the support leg ends to each other and the support leg ends to the base bottom so that the support leg ends do not spread outward. The two support legs 14a and 14b on the front surface of the base 13 are assembled into a triangular support structure by bringing their ends into contact with each other, so that the base 13 can be assembled into a triangular support structure.
Twisting is prevented.

(7) Effects of the invention As explained above, in the pillar support structure of the antenna tower according to the invention, the supporting leg is hinged to the base that abuts one side of the pillar and supports it, so that the support structure is improved. The angle of the legs can be freely changed according to the slope of the site, and the column can be easily supported in the optimal posture even on steep slopes. In addition, since the bottom of the support leg is tensilely connected with tension members such as wires and chains, the support leg is reliably maintained in an optimal posture even in areas with extremely uneven surfaces such as rocky areas, and the column is supported reliably. . In addition, the number of parts is reduced, the structure is simple and lightweight, transportation work is easy, and assembly is easy.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an antenna tower equipped with a conventional pillar support structure, and FIG. 2 is a perspective view of an antenna tower equipped with a pillar support structure according to the present invention. 12... Pillar, 13... Base, 14, 14a, 1
4b...Support leg, 15...Chain.

Claims (1)

[Scope of utility model registration request] It consists of a base that comes into contact with one side of a communications antenna pole to support the pole, and support legs that are hinged to the top of the base and are tilted in the front-rear direction and the left-right direction, and 1. A support structure for a communication antenna column, characterized in that the ends of the support legs and the ends of the support legs and the lower part of the base are each connected by tension members.