JPH01143504A - Antenna system - Google Patents

Abstract

PURPOSE:To obtain an antenna system with less number of components and whose cost is reduced by providing 1st and 2nd through holes to the tip of the pole, fitting the antenna to the 1st through hole by a 1st bolt and adjusting the elevating angle by a 2nd bolt fitted to the 2nd through hole. CONSTITUTION:The 1st through hole 38' is provided on the tip of a pole 37 formed by bending at least the antenna mount part and the 2nd through hole 39' is provided at a location back from the 1st through hole. Then satellite antennas 21-23 are fitted by the 1st bolt 40 around the 1st through hole 38' and the elevating angle of the satellite antenna is adjusted by the 2nd bolt 41 fitted to the 2nd through hole 39'. Through the constitution above, a pole in common use with a mount frame is used to attain incorporation to reduce number of components and to simplify the adjustment. The minute adjusting mechanism is incorporated with the pole to reduce number of components and to simplify the adjustment. The exclusive space for the elevating angle adjusting mechanism is reduced by bending the halfway of the pole.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an antenna device suitable for use, for example, in receiving satellite broadcasting.

[Summary of the invention]

In the present invention, a first through hole is provided at the tip of the pole with at least the bent antenna mounting portion 4, a second through hole is provided at a position retreating from the first through hole, and the first through hole The number of parts can be reduced by attaching the °C satellite antenna to the first bolt using the °C satellite antenna as a fulcrum, and by adjusting the elevation angle of the satellite antenna to the second bolt installed in the second through hole. , which aims to simplify the configuration.

[Conventional technology]

Various types of elevation adjustment mechanisms have been proposed in the past for antenna devices for receiving satellite broadcasting, and FIG. 7 is one example. That is, in FIG. 7, four bolts (2) are installed on the back of the parabolic antenna (1),
A movable mounting frame (3) is attached to these bolts (2). In addition, a mounting frame (5) is attached to the upper end of the pole (4) with U bolts (6) for fixing the horizontal position, and a drive mounting frame (3) is attached to this mounting frame (5) with bolts (7) and (8). is installed. The bolt (8) is for fixing the elevation angle and penetrates into the long direction (9), so that the movable mounting frame (3) can move in the direction of the long direction (9) using the bolt (7) as a fulcrum.
This allows rough adjustment of the elevation angle.

In addition, one end of the elevation angle adjustment pole (10) is locked to the movable mounting frame (3), and the other end has an elevation angle adjustment wing nut (11), a bolt attachment (12), and an elevation angle adjustment fixing wing nut. ) (13) is inserted. The bolt attachment (12) is fixed to the mounting base (5), and by imitating the wing nuts (11) and (13), the bolt (10) moves, allowing fine adjustment of the elevation angle. Become. In addition, bolt attachment (12)
Washers (not shown) are inserted between each of (11) and (13)).

[Problem that the invention seeks to solve]

By the way, in the case of the conventional device having the above-mentioned configuration, the mounting frame includes a movable mounting frame (3), a mounting frame (5), bolts and nuts for fixing them, and a pole (4). Since it has a structure in which it is fixed with a U port (6), it has disadvantages such as a very large number of parts, a complicated structure, and high cost.

In addition, the elevation angle fine adjustment mechanism is also available (10), butterfly nut (
11), (13) Since it consists of six parts including the bolt attachment (13) and two washers, it has the disadvantages of a large number of parts, a complex configuration, and high cost. Ta.

Furthermore, the elevation angle generally covers 28° to 48° in Japan (however, 30° to 46° for 50CII + parabola to ensure gain), but if a straight pole is used as the support column as described above, it will be movable. There were drawbacks such as the metal fittings of the pedestal (3) becoming large and expensive.

The present invention has been made in view of these points, and it is an object of the present invention to provide an antenna device that can simplify the configuration and reduce the cost by reducing the number of parts.

[Means for solving problems]

In the antenna device according to the present invention, a first through hole (38') is provided at least at the tip of a pole (37) having a bent antenna mounting portion.1. A second through hole (39') is provided at a position set back from the first through hole, and the satellite antenna (21 to 23) is attached to the first port (40) using the first through hole as a fulcrum. The second bolt (41) attached to the second through hole is used to adjust the elevation angle of the satellite antenna.

[Effect]

The first through hole (3B') provided at the tip of the pole (37)
) to the satellite antenna (21-2) with the first bolt (40).
3) and adjust the elevation angle of the satellite antenna with the second pole (41) attached to the second through hole (39') of the pole. This reduces the number of parts, simplifies the configuration,
Costs can be reduced. Further, since the pole is bent at least at the antenna mounting portion, the metal fittings of the movable mounting frame (32) to which the pole is mounted can be made smaller, the structure is simple, and the cost is low.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on FIGS. 1 to 6.

Figure 1 shows the assembled state of this embodiment. In the figure, (20) is a rear cover, and a lower plate (21) made of metal or metallized plastic is placed on the rear cover (20). ) is provided, and further a fillo substrate (22) is provided on the lower plate (21). A patch type planar resonator type printed element is printed on this film substrate (22) (Japanese Patent Application No. 62-2
63157). Furthermore, an upper plate (23) of metal or metallized plastic is provided on the film substrate (22). This upper play ) (
A waveguide cap (upper waveguide) (24) is provided near the center of the film substrate (22) corresponding to the feeding point of the film substrate (22), and a patch type planar resonance of the film substrate (22) is provided near the center of the film substrate (22). A plurality of holes (25) are provided corresponding to the container-shaped printed elements.

A support cushion (26) made of, for example, low foam polystyrene is further provided on the upper play (23), and a radome (27) is placed over it. That's it
A plurality of clips (28) are fitted around the C1 rear cover (20) and radome (27) to fix them. First molding (29) for multiple straight sections from above
and a second molding (30) for a plurality of corner sections.

In addition, on the back of the rear cover (20), there are a plurality of bolts (3
1) has been implanted in advance, and align this hole (31) with the hole (33) of the movable mounting frame (32).
(34) to fix the movable mounting frame (32) to the rear cover (20) side. The movable mounting frame (32) has a pair of protrusions (32a) and a pair of larger protrusions (32b) on the upper and lower sides, respectively, and the protrusions (32a) have holes (
35) is provided, and a long hole (36) is provided in the protrusion (32b). In addition, the pole (37) on which the mounting frame is stacked is connected to the protrusions (32a) and (32b) of the movable mounting frame (32).
A pair of pole support members (38) and (39) correspond to
), and these support members (38) and (39)
have a hole (35) and a protrusion (32b) in the protrusion (32a), respectively.
) Through holes (3g') and (39') passing through the pole (37) are provided corresponding to the elongated holes (36).

Then, align the hole (35) with the through hole (38'), align the hole (36) with the through hole (39'), and insert the bolts (40) and (41) respectively into the nuts (42), (
43), and attach the movable mounting frame (37) to the pole (37).
32) Install. If you move the movable mounting frame (32) with the Nara (42) and (43) loosened, the movable mounting frame (32) will be able to rotate within the slot (36) using the Pole (40) as a fulcrum. , this allows the elevation angle to be roughly adjusted.

Also, the support members (38) and (39) of the pole (37)
A through hole (44) passing through the pole (37) is provided in between, and a hollow (45) is fixed by welding or the like to the - side of the pole (37) opposite to this through hole (44), and the hole (45) is fixed from the upper side. (46) is inserted) (4)
5) is screwed together. Pol) (46)
When the bolt (46) is screwed in, the tip of the bolt (46) will come into contact with the movable mounting frame (32), and when the bolt (46) is screwed in further, the nut (42) will come out.

When (43) is loose, the movable mounting frame (32) will move to the opposite side against the pressure of (46). This allows fine adjustment of the elevation angle. In (46), the elevation angle can be finely adjusted within a predetermined range of, for example, 16°.

Further, the pole (37) is bent at a predetermined angle, for example, 20', at least near the antenna mounting portion, for example, the support member (39). Therefore, there is no need to swing the movable mount (32) greatly to obtain a predetermined elevation angle, and the elongation (36) may be small, so the metal fittings of the movable mount (32) can be made smaller accordingly.

Then, a cover (47) is placed over the movable mounting base (32) so as to cover the tip of the pole (37).

The cover (47) has a notch 111B (47a) on its lower side through which the pole (37) comes out, and engaging portions (47b) on both sides thereof that engage with the converter case (52).

In addition, a pair of bosses (48) are provided on the back of the rear cover (20).
) and a predetermined number of bosses (49), for example four, are provided, and the converter (50) is attached to the pair of bosses (48) with screws. After a gasket (51) is provided around the converter (50), a converter case (52) is attached to the boss (49) with screws. At this time, the tip of the converter case (52) is connected to the engaging portion (4) of the cover (47).
7b) is engaged with.

Figure 2 shows the entire antenna device assembled as described above, seen from the back.The antenna body is offset from the vertical direction by a predetermined angle, for example, 10 degrees, and the antenna can be assembled by bending the pole (37) as described above. Main body and pole (
37) is offset by 20 degrees, so by finely adjusting the elevation angle fine adjustment pole (46), the elevation angle can be changed between 30" and 46 degrees in this case. Of course, this angle will vary depending on each region. It can be set arbitrarily depending on the reception state of radio waves.

ffFigure 13 and Figure 4 show specific details when installing the molding and clip, as shown in Figure 3.
A waterproof groove (53) of a predetermined shape is provided in the rear cover (20). This is the radome (27) and rear cover (20
) is used to maintain waterproofness by breaking the surface tension of water at this point. Also, there is a mall (29) or (30) around the led-no (27).
) is provided with a protrusion (54) for hooking it, and a molding (29) or (30) is also provided around the rear cover (20).
A protrusion (55) (Fig. 4B) for hanging is provided. Thereby, the moldings (29) and (3o) can be reliably fastened with one touch without using screws.

Further, as shown in FIG. 4, a positioning rib (20a) is provided around the inside of the rear cover (2o), and the radome (27) is placed on it using this as a guide. And the radome (
27) and the rear cover (20), a plurality of clips (28) are fitted in predetermined positions around them with one touch. In order to securely attach this clip (28), a clip recess (20b) is provided in the rear cover (20) as shown in FIG. 4B.

Next, fit the moldings (29) and (30) with one touch, and as shown in Figure B, the protrusions <54) and (55
). Mall (29), (30)
is divided into a predetermined number of parts, for example, 8 parts, so that they can be easily manufactured as parts, the straight part molding (29) is made by simple extrusion molding, and the corner part molding (30) is made by injection molding.

Figure 5 shows the change in elevation angle due to the elevation angle fine adjustment POL (46), the solid line is the state in which POL) (46) is pulled out into the - cup, and the chain line is POL) (46) screwed into the - cup. state. Here, the elevation and azimuth angles a! ! To explain the procedure, first temporarily fix the pole (37), then tighten the nut (42).
, (43) and roughly move the movable mounting frame (32) to bring the elevation angle close to the angle corresponding to the area, for example 38° for Tokyo and 31° for Sapporo. Then, adjust the elevation angle fine adjustment pole (46) to make the elevation angle almost exactly correspond to the area. Next, rotate the pole (37) and move the antenna to the southwest (in our country)
turn to This will roughly determine the azimuth. Next, after receiving the desired radio wave and adjusting the pole (46) again to finally determine the elevation angle, the angle of elevation is determined (42), (43).
Tighten to fix the movable mounting frame (32) to the pole (37). Next, the pole (37) is rotated slightly again to finally determine the azimuth, and the pole (37) is fixed. Thereby, desired radio waves can be reliably received.

No. 653 shows an example of how to install the pole (37), for example, fix it to the fence (56) of a balcony facing south using the fixing plate (57), U port (5B) and nut (59). do. Of course, the mounting method is not limited to this method.

In this way, in this embodiment, the number of parts can be reduced and the configuration can be made smaller by integrating the parts using a pole that also serves as a mounting frame. Furthermore, by integrating the fine adjustment mechanism with the pole, the number of parts can be reduced and adjustment can be made easier. Furthermore, by bending the pole in the middle, the space dedicated to the elevation adjustment mechanism itself can be reduced.

Furthermore, since the rear cover (20) does not require horizontal holes for screws, it can be made using a mold with a simple cavity and core structure and without a horizontal slide, improving productivity. Also, the rear cover (20) and radome (27) can be fixed with clips (
28) can be done with one touch and mall (29),
(30) can be installed with one touch, improving work efficiency. Furthermore, since the moldings (29) and (30) are divided into a plurality of straight parts and corner parts, it becomes easier to make parts, improving productivity. Furthermore, by providing a waterproof groove, the desired waterproofness can be maintained even without a backing.

〔Effect of the invention〕

As described above, according to the present invention, the satellite antenna is mounted using the first bolt using at least the first through hole provided at the tip of the bent antenna mounting pole as a fulcrum, and the elevation angle of the antenna is set at the first through hole. The second position is set back from the through hole.
Since the adjustment is made using the second bolt attached to the through hole, the number of parts can be reduced, and the structure can be simplified and costs can be reduced. Furthermore, since the pole is bent at the antenna mounting portion, the metal fittings of the movable mounting frame to which the pole is mounted can be made smaller, thereby simplifying the structure and reducing costs.

[Brief explanation of the drawing]

Fig. 1 is an assembly diagram showing an embodiment of the present invention, Fig. 2 is a perspective view showing an antenna device according to the invention, Figs. 3 and 4 are installation diagrams of parts according to the invention, and Fig. 5 is an elevation angle. Figure 6 is a diagram for explaining the adjustment of the pole,
FIG. 7 is a configuration diagram showing an example of a conventional device. (20) is the rear cover, (21) is the lower plate, (2
2) is the fill 11 substrate, (23) is the upper plate, (2)
7) is the radome, (32) is the movable mounting frame, (37)
is the pole, (38'), (39') is the through hole, (
40) and (41) are bolts.

Claims (1)

[Claims] A first through hole is provided at the tip of the pole with at least the bent antenna mounting portion, a second through hole is provided at a position retreating from the first through hole, and the first through hole is provided at a position retreating from the first through hole. An antenna device characterized in that a satellite antenna is attached using a first bolt using the through hole as a fulcrum, and the elevation angle of the antenna is adjusted using a second bolt attached to the second through hole.