JPS5937706A - Antenna device - Google Patents

Abstract

PURPOSE:To obtain the levelness of a base regardless of its inclination by rotating the supporter of an antenna in an elevation direction. CONSTITUTION:The antenna 10 is fitted rotatably to a supporting table 14 formed together with a supporter 13 in one body. The supporting table 14 is supported by two supporters 17. Those are linked together by a rotation part 18. When the rotation part 18 is loosened, the supporters 13 and 17 are deformed while held parallel to each other. When the antenna 10 is fitted to a slanting roof, the rotation part 18 is loosened to match the bottom parts of the supporters 13 and 17 with the inclination and after the horizontal surface of the supporting table 14 is held, the rotation part 18 is fixed. The fitting of the antenna is easy and this constitution is effectively applied for the satellite broadcast reception in a general house.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a strut mechanism for an antenna used for wireless profit and loss.

[Technical background of the invention and its problems]

In recent years, practical use of broadcasting using artificial satellites has been progressing. As shown in Fig. 1, this satellite broadcast i1 is intended to stationary a satellite at a position approximately 36,000 km above the equator, for example at 110° east longitude, and to transmit broadcast radio waves to all of Japan from here.

In this case, the receiver must point the antenna toward the satellite, but since the azimuth and elevation angles relative to the satellite differ depending on the receiving point, these two directions must be used to set the antenna pointing direction. adjustment must be made for each receiving point. Furthermore, the directivity of the receiving antenna is such that the beam width becomes extremely narrow in order to increase the antenna gain.

As shown in Fig. 2, an antenna device for receiving satellite broadcasting has been used since s4It, in which the antenna (1) is attached to a support mechanism (3) on a base (2) so as to be rotatable in the elevation direction. It is conceivable that the support mechanism (3) is attached to the base (2) with a mechanism that can rotate in one direction with respect to the east. The azimuth angle indicator is obtained by an indicator (6) provided to interlock with the support mechanism (3) and an azimuth angle display scale (7) attached to the base (2), and the elevation angle indicator This is obtained by the younger sister antenna (indicator 14 provided in conjunction with 11) and the elevation angle display scale (5) provided on the support mechanism (3). When installing this antenna, first ground the base (2) so that it is horizontal, and install it so that the reference of the display scale (7) is in the specified direction. Rotate the support mechanism (3) until the azimuth angle at the receiving point is identified.

Next, rotate the antenna (1) so that the desired angle point within the indicator scale (5) and the indicator (4) move in conjunction with the antenna (υ).
Fix at the point where they match.

Although installation is carried out using the above method, since the beam of the receiving antenna is narrow, errors in both azimuth and elevation angles must be extremely small or the reception will fail. The above method has the disadvantage that the angular accuracy of the elevation angle is greatly affected by the horizontality of the base and the verticality of the support mechanism. In order to obtain levelness, another spacer (8) must be installed, and the base (2) must be grounded after leveling, which is a more difficult task. As a result, a considerable amount of time is spent and installation costs increase. It is still difficult to calibrate the installation misalignment of the base and support mechanism due to changes over time or sudden external factors.

[Purpose of the invention]

The present invention has been made in view of the above points, and an object of the present invention is to provide an antenna device provided with a support that can indicate the direction 751 of the antenna regardless of the horizontality of the base.

[Summary of the Invention J The present invention is an antenna device that is composed of a base, a support mechanism, an antenna, and a display section that displays the azimuth and elevation angle, and the support mechanism can obtain levelness regardless of the inclination of the base.

〔Effect of the invention〕

Since the present invention has a mechanism that rotates the support column in the elevation direction, the top surface of the support support can be maintained horizontally even when installed on any slope, which has the advantage of making antenna installation easy and reducing costs. .

[Embodiments of the invention]

The configuration of an embodiment of the present invention is shown in FIGS. 4 and 5. The antenna (II) that transmits or receives data from the satellite is made up of a parabolic reflector (lυ) and a transmitter/receiver part α, and the antenna is rotatably provided on a support base 116 that is integrally formed with a column (131). +IS is an indicator that indicates the azimuth angle, and the elevation direction is indicated by an indicator 11i) that moves in conjunction with the antenna.

Support f13) Fi four support frames at> and this support frame t
A support stand (14) fixed at right angles to two of the 1η, the support fLa and the support frame (171) have rotating parts (both ends of which are rotatable).
4) is provided by extending the upper sides of two of the support frames aη. The bottom side of the support frame (17) is the fixing screw 17 to the base 4.
It is fixed at 11. The rotating part (1 second) is screw-shaped and has a mechanism that can be fixed by tightening the screw.

Next, when trying to install the antenna tll, when installing it on a flat ground, loosen the rotation part so that the support (1'5) is perpendicular to the base 4, and fix it at the obtained location. As a result, the support Oa, which is identified perpendicular to the two columns of the support frame 07), is parallel to the base ([excellent]. Therefore, the support (mark) is horizontal. Note that the fine adjustment is based on the support ( 14)
All you have to do is adjust while looking at the level on the surface.

Next, when installing the antenna (1G) on an inclined surface, align the rotating direction of the rotating part (1 ladder) with the inclined surface and install the base 1 as shown in Figure 6. With Q81 in a free position, rotate the support frame so that it is horizontal while looking at the spirit level provided on the support stand ++4)K, and when it becomes horizontal, fix the rotating part (IF!J).As a result, the antenna (The support base (14) on which 11 is attached is in a horizontal state.

Thereafter, the antenna (1) may be placed on the support base !+4 so that it is positioned in the desired direction and elevation direction.

As mentioned above, in Japan, when trying to receive satellite broadcasting, it is extremely rare for households to install an antenna on a flat area such as a garden, and it is highly likely that the antenna will be installed on the roof. It is thought that such a situation is very common. When installing on such an inclined surface, the present invention can be easily installed. Furthermore, no other jigs such as spacers are required.

In the present invention, the support frame may be one or more than one, and in the case of multiple support frames, it can be realized in either a circular arrangement or a polygonal arrangement. Alternatively, the support stand may be fixed at right angles to one support rod.

Note that when installing the antenna on an inclined surface, loading a reinforcing angle between the support and the base will further increase the strength of the support.

[Brief explanation of the drawing]

7.1: Figure 41 is an explanatory diagram of satellite broadcasting, Figure 2 is a configuration diagram of a conventional satellite broadcasting antenna device, Figure 3 is a diagram of a conventional antenna device installed on an inclined plane, Figures 4 and 4. FIG. 5 is a block diagram of an antenna device according to an embodiment of the present invention, and FIG. 6 is a diagram showing the antenna device of the present invention installed on an inclined surface. 1...Antenna, 2...Base, 3...Support mechanism, 4
...Indicator, 5...Display scale, 6...Indicator, 7
...Display scale, 8...Spacer, 10...Antenna, 11...Reflector, [2...Transmission/reception 1g capital,
, t 3... Strut, 14... Support stand, 15... Indicator, 115... Indicator, 17... Support rod, 18...
...Rotating part, 19...Base, '20...Both leg screws. Agent Patent Attorney Noriyuki Chika (and 1 other person) Figure 1 Figure 2 Figure 3 Figure 6 Figure 4 Figure 5

Claims (1)

[Claims] An antenna, a pillar on which the antenna is rotatably mounted,
An antenna device comprising a base to which the support is attached, and an azimuth/elevation angle display section, wherein the support is rotatable in a 1↓p angle direction with respect to the base.