JP2624207B2 - Portable antenna device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable antenna device used for a mobile earth station or the like in a satellite communication system, and more particularly, to a foldable portable antenna device which moves by folding each part constituting the antenna device. About.

[0002]

2. Description of the Related Art In a satellite communication system, a parabolic antenna, a planar array antenna, or the like used for a mobile earth station or the like is provided with a primary radiator,
2. Description of the Related Art A portable antenna device that is disassembled and transported to various parts such as a reflector and a support base and assembled and used at a destination is widely used.

As a technology of such a portable antenna device, there is, for example, a portable antenna device described in Japanese Patent Application Laid-Open No. 63-302606. FIG.
FIG. 1 is an overall side view showing a portable antenna device described in JP-A-302606.

As shown in FIG. 1, this conventional portable antenna device comprises a reflecting mirror 15, a sub-reflecting mirror 16, and a supporting frame 11, a tripod mount 12, and a turntable 13 on which these are mounted. It is configured to be disassembled.

A conventional portable antenna device having such a configuration is used as follows. First, when the antenna device is used, the tripod stand 12 is installed at an arbitrary position of the movement destination, and the turntable 1 is mounted on the tripod stand 12.
3 is fixed.

Next, the supporting frame 11 and the reflecting mirror 15 are sequentially mounted on the turntable 13, and the sub-reflecting mirror 16 is attached to the tip of the supporting frame 11. afterwards,
The height adjustment jacks 12a and 12b of the tripod stand 12 adjust the level in the horizontal direction, the adjustment jack 14 on the back side of the support frame 11 adjusts the elevation angle of the antenna, and the turntable 13 adjusts the azimuth. Was.

[0007] When the antenna device is moved after use, the antenna device is disassembled into various parts and transported and moved by a procedure reverse to the above-described assembly procedure.

[0008]

By the way, in general, this type of portable antenna device is easy to carry and move, can start using the antenna quickly and easily, and can move to the next destination. For smooth movement of the antenna device, it is also required that work such as installation, assembly, and storage after use of the antenna device be easy and quick.

That is, the portable antenna device needs to quickly transfer radio waves from the ground station by the transponder, and matches the respective beam directions (radiation patterns) of the elevation angle and the azimuth angle to the geostationary satellite station. The quickness of the initial setting work is required.

However, in the above-mentioned conventional portable antenna device, all parts constituting the antenna device are disassembled and moved, and they are all reassembled again at the destination. There is a problem that it takes time and effort, and lacks quickness and easiness.

In the conventional portable antenna device, the horizontality, the azimuth, and the elevation of the antenna are adjusted by separately mounting and adjusting means such as a tripod base, a rotary base, and an adjustment jack, respectively. I had to do it with an antenna.

For this reason, the apparatus becomes large, complicated, and expensive, and the disassembling and assembling work of the apparatus requires much labor and time, and the number of parts to be transported and the weight increase. In addition, if separate adjustment means are provided, adjustment of the azimuth angle and the like will take time, and initial setting will be delayed. There was a limit to responding to requests.

In general, the adjustment of the azimuth of the portable antenna and the like is basically rarely performed once the initial setting is made at the destination. Therefore, it is necessary and sufficient to provide separate adjustment means for the azimuth angle and the like as in the conventional antenna device, but this can reduce the speed of installation and moving work originally required for a portable antenna. Inhibition is not preferred.

Further, in such a disassembled / assembled type antenna device, while disassembling and assembling of each part of the device are repeated,
There was also a risk of wear, damage, etc. occurring in each part.

The present invention has been proposed in order to solve such problems of the conventional technology. The components constituting the antenna device are small, light and inexpensive, and the components constituting the antenna device are disassembled.
It is an object of the present invention to provide a portable antenna device in which an antenna can be installed, stored, and transported without assembling, and the angle of the antenna can be adjusted in a short time.

[0016]

In order to achieve the above object, a portable antenna device according to the first aspect of the present invention comprises two parallel pipes having a reflector mounted on the front surface. A reflector support frame, one pipe which is provided to penetrate the lower end of the reflector support frame at right angles, and is connected to the reflector support frame so as to be rotatable around an axis, and respectively attached to both ends of the pipe. Independently adjustable
Two front jacks, a reinforcing member erected on the upper end side between two pipes constituting the reflector supporting frame, and one rear portion rotatably attached to the center of the reinforcing member. A jack, and a sub-reflector support frame provided with a sub-reflector at its tip, protruding from the upper end of the reflector support frame toward the reflector, and the sub-reflector support frame comprises a reflector support frame. It is configured to have a bent portion that is bent to the side.

In the portable antenna device according to the present invention, a base flange for fixing an antenna to an installation surface is provided at an end of the front jack and the rear jack on an antenna installation surface side. is there.

Further, the portable antenna device according to a third aspect of the present invention is configured such that a bent portion of the sub-reflector support frame has a stopper function that stops at a position where the sub-reflector does not come into contact with the reflector. .

[0019]

According to the portable antenna device of the present invention having the above-described structure, the reflector support frame has two jack mechanisms at the front part and one jack mechanism at the rear part, and has a base flange at the end of the jack mechanism. Since the antenna is installed, a stand for installing the antenna is not required, and the horizontal level adjustment and the elevation direction adjustment of the antenna can be simultaneously performed by a set of adjustment mechanisms. Therefore, the antenna device is lightweight and inexpensive, and the direction of the antenna is adjusted. Can be done in a short time.

Further, since the sub-reflector support frame and the three jacks are configured to be foldable with respect to the reflector support frame, installation and storage operations can be performed in a short time.
In addition, since the antenna is so compact that it can be housed in one box, the carrying work becomes extremely easy.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the portable antenna device of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing one embodiment of the portable antenna device of the present invention.
FIG. 2 is a side view of the portable antenna device shown in FIG. 1, and a dashed line in the figure indicates a state of the antenna device during transportation, and a two-dot chain line indicates a size of a storage box of the entire antenna during transportation. Indicates

In these figures, reference numeral 1 denotes a reflector supporting frame, which is constituted by two pipes arranged in parallel, and a reflector 8 is mounted on the front surface. Further, between the two pipes of the reflector supporting frame 1, bar-shaped reinforcing members 1a and 1b are provided on the upper end side and the lower end side by welding or the like for reinforcing and mounting the reflecting mirror 8. .

At the lower end of the reflector supporting frame 1, a single pipe 2 penetrates at right angles and is connected to the reflector supporting frame 1 so as to be rotatable around an axis. That is,
When the pipe 2 penetrates through the through hole at the lower end of the reflector support frame 1, both are rotatable about the pipe 2 as a central axis.

The ends of the pipe 2 are independently adjusted.
An adjustable front jack 3 (3a, 3b) is provided perpendicular to the antenna mounting surface. Also, these two front jacks
The end of the installation surface side of 3a, 3b is a base flange 4 (4a, 4b) for fixing the antenna to the installation surface. As the front jack 3, various types of jacks such as a general rack drive type, a hydraulic type, and a type using a worm wheel or a turn buckle can be used.

The reinforcing member 1a on the upper end side of the reflector supporting frame 1 is provided with one rear jack 5 at the center in a rotatable manner. A base flange 4c is also formed on the installation surface side of the rear jack 5 similarly to the front jack 3, so that the antenna is supported on the installation surface. In addition,
As the rear jack 5, various types of jacks can be used similarly to the above-described front jack 3.

Reference numeral 6 denotes a sub-reflecting mirror support frame, which protrudes from the upper end of the reflecting mirror supporting frame 1 toward the reflecting mirror 8 and has a sub-reflecting mirror 7 attached to the end thereof. As shown in FIG. 3, the sub-reflector support frame 6 has a bent portion 6a which is bent toward the reflector support frame 1 at an intermediate portion. That is, in the present embodiment, the bent portion 6a
The sub-reflector support frame 6 is divided in the middle into two parts, which are rotatably joined by pins.

In this embodiment, when the sub-reflector support frame 6 is bent, the sub-reflector 7 is
Bent part 6 joined with a pin to prevent contact with
3A, a stopper 6b formed by a projection or the like is provided as shown in FIG. 3, so that the reflector support frame 1 and the sub-reflector support frame 7 are parallel as indicated by a dashed line in FIG. It is like that.

The bent portion 6a and the stopper 6b
The present invention is not limited to the embodiment as long as the sub-reflector support frame 6 can be bent at a fixed angle. For example, other means such as a ball bearing and a link mechanism may be used.
The stopper can also be configured to correspond to these means.

Next, a method of installing and storing the portable antenna device having the above-described configuration according to the present embodiment will be described. When installing, first, two front jacks 3
a, 3b and the rear jack 5 are deployed, and the respective base flanges 4a, 4b, 4c are installed on the installation surface.

Further, in the portable antenna device of the present embodiment, since the independent azimuth adjustment mechanism is omitted, the azimuth of the reflector 8 is adjusted at the same time when the antenna is installed. That is, the reflecting mirror 8 is directed to a predetermined azimuth angle, the base flanges 4a, 4b, 4c are set on the installation surface, and the base flanges 4a, 4c are set.
Fine adjustment is performed by moving the positions b and 4c, respectively.

As a result, the installation of the antenna device is completed.
Is set and the front jack 3 is adjusted to adjust the level of the antenna in the horizontal direction. At the same time, the rear jack 5 is adjusted to adjust the elevation angle of the antenna.

After use, it is stored in the reverse order of the above-mentioned assembly. That is, as shown by the dashed line in FIG.
The sub-reflector supporting frame 6 is bent toward the reflecting mirror 8 to store the sub-reflecting mirror 7, and the front jack 3 and the rear jack 5 are rotated and rotated to be parallel to the reflecting mirror supporting frame 1.
As a result, the entire antenna device is folded to the size indicated by the two-dot chain line in FIG. 2, and is moved and transported by storing it in a suitably prepared storage box.

As described above, according to the portable antenna device of the present embodiment, the base flanges 4a, 4b, 4c at the installation surface side ends of the two front jacks 3 and one rear jack 5 are provided.
As a result, the antenna installation base is not required, and the horizontal level adjustment and the elevation direction adjustment of the antenna can be performed at the same time, so that the antenna device is lightweight and inexpensive, and the direction adjustment of the antenna can be performed in a short time. Can be performed.

Since the sub-reflector support frame 6 and the three jacks 3a, 3b, 5 are foldable with respect to the reflector support frame 1, installation and storage operations can be performed in a very short time. The antenna device is so compact that the entire antenna device can be accommodated in a single box, and the installation, storage and transport operations are extremely easy.

[0035]

As described above, according to the portable antenna device of the present invention, the size of the antenna device is small, light, and low in price. Also, when moving, the components constituting the antenna device are disassembled and assembled. Install antenna without
It can be stored and transported, and the angle of the antenna can be adjusted in a very short time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a portable antenna device of the present invention.

FIG. 2 shows a side view of the portable antenna device shown in FIG.

FIG. 3 is a perspective view showing a bent portion of a sub-reflector support frame of the portable antenna device shown in FIG.

FIG. 4 is a side view showing a conventional portable antenna device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Reflector support frame 2 ... Pipe 3 ... Front jack 4 ... Base flange 5 ... Rear jack 6 ... Secondary reflector support frame 6a ... Bending part 7 ... Secondary reflector 8 ... Reflector

Claims (3)

(57) [Claims] 1. A reflecting mirror supporting frame comprising two parallelly disposed pipes on which a reflecting mirror is mounted on a front surface thereof; A pipe rotatably coupled to the reflector supporting frame; and independent pipes attached to both ends of the pipe.
Two adjustable front jacks, a reinforcing member erected on the upper end side between two pipes constituting the reflector supporting frame, and one rotatably attached to the center of the reinforcing member A rear jack, and a sub-reflector support frame provided with a sub-reflector at its tip, protruding from the upper end of the reflector support frame toward the reflector, and the sub-reflector support frame is a reflector. A portable antenna device comprising a bent portion on a support frame side. 2. The portable antenna device according to claim 1, wherein a base flange for fixing the antenna to an installation surface is provided at an end of the front jack and the rear jack on the antenna installation surface side. 3. A bent portion of the sub-reflector support frame,
The portable antenna device according to claim 1 or 2, further comprising a stopper function that stops at a position where the sub-reflection mirror does not contact the reflection mirror.