JPH09107217A - Antenna attaching pedestal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely set an attaching pedestal on a flat place like the roof of a building without using an anchor by putting weights on a radial weight base to constitute a pedestal part and putting an antenna attaching part on them. SOLUTION: After a weight base 10 is carried up to the roof of the building, a required number of weights 20 are piled up on the center part of the weight base 10. The number of weights 20 is changed to easily control the overall weight. When weights 20 are piled up, respective bolt holes are positioned to bolt holes of the weight base 10. After they are piled up, an antenna attaching part 30 is assembled and is placed on the weight 20 in the highest stage. Bolts 40 are inserted to bolt holes of the weight base 10, weights 20, and the antenna attaching part 30 and are fastened by nuts. Thus, weights 20 are fixed on the weight base 10, and the antenna attaching part 30 is fixed on them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna mounting base suitable for installing a relay antenna of a simple mobile phone system on a rooftop of a building.

[0002]

2. Description of the Related Art Simple mobile phone systems are becoming widespread. However, since many relay antennas are required for their widespread use, relay antennas are being installed on rooftops of tall buildings.

When a relay antenna is installed on the roof of a building, an antenna mount is required, and the mount is now firmly fixed to the roof by an anchor.

[0004]

However, if the antenna mounting base is fixed to the roof by an anchor, the roof will be damaged and its waterproofness will be deteriorated. In addition, the construction will be a major undertaking.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an antenna mounting base that can be easily and firmly installed on a roof of a building without damaging the roof.

[0006]

In the antenna mounting base according to the present invention, a plurality of flat weights are stacked on a central portion of an assembling type weight base which is constructed by radially combining a plurality of horizontal members. The gantry includes a pedestal portion fixed on the central portion by a plurality of bolts, and an antenna mounting portion in which a pole to which an antenna is attached is erected on the pedestal portion by a plurality of bolts.

The antenna mounting portion is usually fixed on the central portion of the uppermost weight, but it can also be fixed on the end portion of the horizontal member forming the weight base. When the antenna mounting portion is fixed to the end of the horizontal member, there is an advantage that, when the antenna is installed in the corner of the roof of the building, the antenna can be installed in the most corner.

When the antenna mounting portion is fixed on the central portion of the uppermost weight, it is preferable to use a bolt for fixing the weight on the central intersecting portion of the weight base from the viewpoint of simplifying the structure. In this case, it is economical and desirable to use a commercially available BS / CS antenna mounting base as the base body.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the entire structure of an example of an antenna mounting base embodying the present invention, FIG. 2 is a plan view of the antenna mounting base, and FIG. 3 is a plan view of a weight base used in the antenna mounting base. FIG. 4 is a front view of the weight base, FIG. 5 is a plan view of one horizontal member constituting the weight base, and FIG. 6 is a plan view of the other horizontal member.

This antenna mounting base is shown in FIGS.
As shown in FIG. 4, a radial weight base 10 placed on a rooftop of a building, a plurality of flat plate-like weights 20 stacked on the central portion of the weight base 10, and four bolts 40 connecting them together. And. These form a pedestal part. And the weight of the mount, especially the weight 20,
The antenna mounting portion 30 is fixed to the upper part of the antenna using the bolt 40.

The weight base 10 constituting the mount is
As shown in FIGS. 3 and 4, two horizontal members 1
It is configured by combining 1 and 12 in a cross shape.

As shown in FIG. 5, one horizontal member 11 is composed of a single channel steel 13 having an opening downward. Seat plates 14 and 14 are provided on the lower surfaces of both ends of the channel steel 13.
Are welded together, and the other horizontal member 1 is attached to both sides of the central part.
A pair of projections 15 and 15 are provided in the longitudinal direction of the channel steel 13 at intervals in order to position the two. Also,
Bolt holes 19 are located equidistant from the center of the top surface,
19 are provided.

As shown in FIG. 6, the other horizontal member 12 has a structure in which two short groove-shaped steels 16, 16 are connected at intervals in the longitudinal direction by a connecting plate 17 which also serves as a central seat plate. Has become. The gap formed between the channel steels 16 and 16 has substantially the same dimension as the lateral width so that the channel steel 13 fits. Seat plates 14 and 14 are welded to the lower surfaces of the opposite ends of the channel steels 16 and 16, and bolt holes 19 and 19 are provided on the upper surfaces of the seat plates 14 and 14, respectively.

The weight base 10 is assembled by fitting the central portion of the long groove-shaped steel 13 forming the horizontal member 11 between the two short groove-shaped steels 16 forming the horizontal member 12. To be In addition, the channel steel 16,
If the channel steel 13 is extracted from between 16, the weight base 10 is easily disassembled into two horizontal members 11 and 12.

The lengths of the horizontal members 11 and 12 are about 1.5 m, and the weight thereof is about 40 kg.

The weight 20 which constitutes the pedestal part together with the weight base 10 is made of a steel plate having a side of about 40 cm and a weight of about 25 kg. The weight 20 has four bolt holes 19 of the weight base 10.
4 bolt holes are provided so as to correspond to.

The antenna mounting portion 30 installed on the pedestal portion having the above structure is an antenna mounting pedestal commercially available for BS / CS antennas. This pedestal consists of a vertical pole 31 and a mounting base 32 provided at its lower end.
And four diagonal members 35. The mounting base 32 is
A vertical member 3 having an L-shaped cross section at both ends of a horizontal member 33 having a π-shaped cross section
4 is screwed, and the lower end of the pole 31 is inserted into the center of the cross member 33 and screwed. Vertical members 34,3
The total of four bolt holes provided at both ends of 4 correspond to the four bolt holes 19 of the weight base 10 and the four bolt holes 21 of the weight 20. The four diagonal members 35 support the pole 31 by having the upper end screwed to the pole 31 and the lower end screwed to the vertical member 34. Then, the relay antenna of the simple mobile phone system is attached to the pole 31.

The weight of the gantry body 30 is ten and several kilograms.

A method of using the present antenna mounting base will be described for a case where a relay antenna of a simple mobile phone system is installed on the roof of a building.

The antenna mounting base is used as the weight base 1
0, the weight 20 and the antenna mounting portion 30 are disassembled, and the weight base 10 is further divided into two horizontal members 11 and 1.
In the state that it was disassembled into 2, carry each to the roof of the building. Since the antenna mounting portion 30 is a ready-made product, the antenna mounting portion 30 is carried to the rooftop in the packed state.

At this time, an elevator can be used up to the top floor of the building, but it is common to carry it from the top floor to the rooftop by hand.

The weight base 10 is disassembled into two horizontal members 11 and 12, each weighing 40 k.
Since it is about g, it can be carried up to the roof without using an elevator. As for the weight 20, one piece is 2
Since it weighs about 5 kg, it can be easily transported to the rooftop. Since the weight of the antenna mounting portion 30 is more than 10 kg, it can be easily carried.

When the horizontal members 11 and 12, the required number of weights 20 and the antenna mounting portion 30 are carried up to the rooftop, first, the horizontal members 11 and 12 are assembled on the rooftop to form the weight base 10. Next, the required number of weights 20 are stacked on the central portion of the weight base 10. By changing the number of weights 20, the total weight can be easily adjusted. When stacking the weights 20, the respective bolt holes 21 are set to the bolt holes 1 of the weight base 10.
Align to 9. After the weights 20 are stacked, the antenna mounting portion 30 is assembled and placed on the uppermost weight 20. Then, the bolt 40 is passed through each bolt hole of the weight base 10, the weight 20, and the antenna mounting portion 30, and the nut is tightened therein. As a result, the weight 20 is fixed on the weight base 10, and the antenna mounting portion 30 is fixed on the weight 20.

Thus, the antenna mounting base is installed on the roof without using an anchor. When the installation of the antenna mount is completed, the pole 31 of the antenna mount 30 is
Install the relay antenna on.

The installed antenna mounting base has good stability because of the radial weight base 10 and the weight 20 stacked on the central portion thereof. If the stability is insufficient, the weight 20 may be added. In any case, the antenna mount is firmly installed on the roof without using an anchor.

Compared to the case where the gantry body 30 is directly anchored to the roof, the weight base 10 and the weight 2 are
Although 0 is additionally required, since the weight base 10 and the weight 20 are disassembled and assembled, they can be transported without using the elevator as described above.

FIG. 7 is a front view showing the entire structure of another example of the antenna mounting base embodying the present invention, FIG. 8 is a plan view of the antenna mounting base, and FIG. 9 is a side view of the antenna mounting base. .

The present antenna mounting base has the same mounting base as the above antenna mounting base. The difference is the structure and installation position of the antenna mounting part. The antenna mounting portion 50 has upper and lower two poles 51 and 52. The lower pole 51 is connected to a rear portion of a bracket 53 having a U-shaped cross section by two upper and lower U bolts 54. The lower end of the bracket 53 straddles the end of the horizontal member 12 that constitutes the weight base 10, and is joined to the end by two bolts 55. As a result, the upper and lower two poles 51 of the antenna mounting portion 50,
52 will be erected on the end of the horizontal member 12.
A bolt hole 18 is provided at each end of the horizontal members 11 and 12 so that the antenna mounting portion 50 can be attached to each end.

The antenna mounting portion 50 is attached to the horizontal members 11, 1
The advantage of installing on the end of 2 is as described above. Further, the antenna mounting portion 50 is attached to the horizontal members 11, 12
Even if the antenna mounting base is installed on the end of the antenna mounting base, the antenna mounting base is stably installed on the roof or the like without using an anchor for the same reason as the antenna mounting base.

The upper and lower two poles 51, 52 are vertical two
The rotating plates 56 and 57 are connected to each other. The lower part of one rotating plate 56 is connected to the upper end part of the lower pole 51, and the upper disk part overlaps the lower disk part of the other rotating plate 57. The upper part of the rotating plate 57 is the upper pole 5
It is joined to the lower end of 2. The two overlapping discs are rotatably coupled at the center, and bolts 59, 59 penetrating arc-shaped elongated holes 58, which are concentrically provided with respect to the center, allow arbitrary rotational positions. Fixed to. This makes it possible to adjust the angle of the upper pole 52. The advantage of changing the angle of the pole of the antenna mounting portion 50 is that radio waves can be easily received regardless of the installation location.

FIG. 10 is a front view showing the entire structure of another example of the antenna mounting base embodying the present invention, FIG.
FIG. 1 is a side view of the antenna mounting base.

Compared with the above-mentioned antenna mounting base, this antenna mounting base has a structure of the antenna mounting portion 50,
In particular, only the angle adjustment mechanism of the pole is different. That is,
In the antenna mounting portion 50, the upper and lower two poles 51,
The opposite end face of 52 is cut obliquely, and circular rotating plates 56 and 57 are attached to the end face. This also makes it possible to adjust the angle of the upper pole 52.

The antenna mounting base according to the present invention is not limited to the relay antenna of the simple mobile phone system,
It can also be used to attach the original BS / CS antenna. Needless to say, the installation location is not limited to the rooftop of the building.

[0034]

As described above, in the antenna mounting base according to the present invention, the weight is mounted on the radial weight base to form the mounting base portion, and the antenna mounting portion is mounted on the weight mounting base. It can be installed stably on a flat place like the roof of the car without using an anchor. Therefore, there is no fear of deteriorating the waterproof property. Moreover, since the weight base is an assembling type and the weight is a flat type stacking type, even when the elevator cannot be used, it can be manually transported to the installation location. Further, the total weight can be easily adjusted depending on the number of weights.

[Brief description of the drawings]

FIG. 1 is a front view showing the overall structure of an example of an antenna mounting base embodying the present invention.

FIG. 2 is a plan view of the antenna mounting base.

FIG. 3 is a plan view of a weight base used for the antenna mounting base.

FIG. 4 is a front view of the weight base.

FIG. 5 is a plan view of one horizontal member forming the weight base.

FIG. 6 is a plan view of the other horizontal member.

FIG. 7 is a front view showing the overall structure of another example of the antenna mounting base embodying the present invention.

FIG. 8 is a plan view of the antenna mounting base.

FIG. 9 is a side view of the antenna mounting base.

FIG. 10 is a front view showing the overall structure of still another example of the antenna mounting base embodying the present invention.

FIG. 11 is a side view of the antenna mounting base.

[Explanation of symbols]

 10 Weight base 11,12 Horizontal member 20 Weight 30,50 Antenna mounting part 31,51,52 Pole

Claims (4)

[Claims] 1. A plurality of flat weights are stacked on a central portion of an assembling type weight base formed by radially combining a plurality of horizontal members and fixed on the central portion by a plurality of bolts. An antenna mounting base, comprising: a base unit and an antenna mounting unit in which a pole to which an antenna is mounted is formed by standing a plurality of bolts on the base unit. 2. The antenna mounting part according to claim 1, wherein the antenna mounting part is fixed on the center part of the uppermost weight by using a bolt for fixing the weight on the center part of the weight base. Frame. 3. The antenna mount according to claim 2, wherein the antenna mount is a BS / CS antenna mount. 4. The antenna mounting base according to claim 1, wherein an antenna mounting portion is fixed to an end portion of a horizontal member forming the weight base.