JPH0136330Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention relates to an antenna azimuth adjustment device, for example, coarse adjustment of the azimuth and elevation angle of a parabolic antenna,
This invention relates to an adjustment device that is effective for fine adjustment.

[Technical background of the invention]

Conventionally, the mechanism supporting the parabolic antenna was
The structure is as shown in the figure. In Figure 1, 1
Reference numeral 1 designates a prismatic pole, and at the tip of the pole 11 is a first metal fitting 1 that surrounds three sides of the pole 11 and has wing pieces 14a and 14b at its upper end.
4 is installed. The first metal fitting 14 is rotatable in the direction of the arrow (A←→B) shown in the figure around the mounting shaft 15, and when fixing its rotational position, it is tightened to the pole 11 with a bolt 13. Fixed. Further, when making a fine rotation in the direction of arrow A in the figure, the bolt 12 passing through the pole 11 is rotated, and the tip of the bolt 12 presses the side plate (not shown) of the first metal fitting 14. It is then finely adjusted.

Next, a mounting shaft 17 is attached to the upper surface of the first metal fitting 14.
A flat plate-shaped second metal fitting 16 is placed which is rotatable in the direction of the illustrated arrow (C←→D) about the center. The attachment shaft 17 passes through the second metal fitting 16 and is attached to a wing piece (not shown) of the first metal fitting 14. When adjusting the second metal fitting 16 in the direction of the illustrated arrow (C←→D), the bolts 18 and 19 are loosened and the bolt 22 is turned. Bolts 18, 19
pass through the elongated holes 20 and 21 of the second metal fitting 16, respectively, and are screwed into screw holes or nuts provided in the wing pieces 14a and 14b. Also, bolt 22
is rotatably passed through the side plate 14c of the first metal fitting 14 and is screwed into the nut 23. This nut 23 is held in a nut accommodating portion 24 provided in the second metal fitting 16 so as not to rotate. Therefore, when the bolt 22 is rotated, the second metal fitting 16 can receive the driving force from the nut 23 and rotate in the direction of the illustrated arrow (C←→D). The bolt 22 passes through the side plate 14c of the first metal fitting 14, but is stopped by a ring or the like so that it does not move in the axial direction with respect to the side plate 14c.

The third metal fitting 25 is used when it is desired to further change the elevation angle of the antenna, and is attached to the side plates 16a, 16b of the second metal fitting 16 with mounting shafts 26, 27.
It is rotatably mounted in the direction of the arrow (E←→F) shown in the figure. For the second metal fitting 16, the third
When adjusting the elevation angle of the metal fitting 25, use the bolt 2
8, 29 are removed and the appropriate screw holes 30a,
30b, 30c,..., 31a, 31b, 31c
) are selected and fixed at the positions of bolts 28 and 29.

[Problems with background technology]

According to the above conventional antenna support device, when the bolt 12 is rotated to adjust the elevation angle, the first metal fitting 14
rotates about the mounting shaft 15 in the direction of arrow A or B shown in the figure. As a result, the wing piece 1 of the first metal fitting 14
4a and 14b do not necessarily remain horizontal, but are tilted with respect to the horizontal plane by adjusting the elevation angle.

In this way, when the wing pieces 14a and 14b are tilted with respect to the horizontal plane, if the second metal fitting 16 is rotated about the mounting shaft 17 to adjust the azimuth angle, the parabolic antenna will be tilted from the front. From the perspective,
It has the disadvantage that its vertical axis is tilted.

[Purpose of invention]

This idea was made in view of the above circumstances, and has a simple configuration that allows direction adjustment independently of the pole, and even if the elevation angle is adjusted and the azimuth angle is adjusted, the vertical axis of the antenna remains unchanged. It is an object of the present invention to provide an antenna orientation adjustment device that does not have any influence.

[Summary of the idea]

In this invention, the azimuth angle adjuster 42 is
9. The elevation adjustment tool 35 is driven by the azimuth adjustment nut part 49 that is engaged with the fixing fitting 48, and the elevation adjustment tool 35 is driven by the elevation adjustment bolt 37 and the elevation adjustment nut part 38, and adjusts the elevation angle. In case of
The orientation adjustment horizontal plane is not affected so that the vertical axis of the antenna always points in a stable direction.

[Example of idea]

Examples of this invention will be described below with reference to the drawings. In FIG. 2, 35 is an elevation adjuster;
When viewed from the front, it is almost U-shaped, and the side plates 35a, 3
5b and a top plate 35c. An antenna 36 is attached to the vertically standing side plates 35a and 35b with bolts or the like. An elevation adjustment bolt 37 is rotatably attached to approximately the center of the top plate 35c of the elevation adjustment tool 35 and passes through the top plate 35c. The elevation adjustment bolt 37 is rotatable relative to the top plate 35c, but is attached using a ring or the like so that it does not move in the axial direction.

The tip of the bolt 37 is screwed into an elevation adjustment nut part 38 disposed between the side plates 35a and 35b. This elevation adjustment nut component 38 is, for example, a metal flat plate bent into a U-shape, a hole is made in the top plate portion of the metal plate, and a nut is welded coaxially with the hole. Furthermore, a bolt 39 is passed through the side plates 38a and 38b of the elevation adjustment nut component 38. This bolt 39 is screwed into an azimuth adjustment nut component 49 disposed between the side plates 38a and 38b.

The bolt 39 can freely rotate with respect to the side plates 38a and 38b, and is also movable in the axial direction. Furthermore, both ends of the bolt 39 also pass through the side plates 42a, 42b of the azimuth angle adjuster 42 and the side plates 35a, 35b of the elevation angle adjuster 35. Both ends of the bolt 39 are connected to side plates 42a, 42b and 35.
Although a and 35b can be tightened and fixed, since both are applicable, only one will be explained. That is,
One end of the bolt 39 passes through an elongated hole 43 formed in a curved manner in the side plate 35a. Also, in this case,
It also passes through the round holes formed in the side plates 42a, 42b of the azimuth adjustment tool 42. The bolt 39 is rotatable with respect to the side plate 35a of the elevation angle adjuster 35 and the side plate of the azimuth angle adjuster 42 overlapping with the side plate 35a, but is attached using a ring or the like so as not to move in the axial direction.

Next, the side plates 35a and 35b of the elevation adjuster 35
is on the side plates 42a, 42b of the azimuth adjustment tool 42,
The illustrated arrow (G←→
It is mounted so that it can rotate freely in the H) direction.

Therefore, when the elevation angle adjuster 35 is adjusted in the direction of arrow G or H shown in the figure, the nut 45 is loosened and the bolt 37 is turned. With this, the bolt 37 connects the top plate 35c and the elevation adjustment nut part 3.
8 is varied, that is, the elevation angle of the elevation angle adjuster 35 is adjusted. In this case, the bolt 39 is in an immovable position in the vertical direction. In other words, only the elevation angle adjuster 35 is attached to the mounting shaft 4 within the range of the elongated hole 43.
4a and 44b are pivots. Once the elevation adjustment position is determined, the nut 45 is tightened. This nut 45 is connected to the side plate 35a of the elevation angle adjuster 35.
By tightening the side plate 42a of the azimuth adjustment tool 42, the elevation angle of the elevation adjustment tool 35 can be fixed.

That is, as shown in FIG. 3, the nut 45 is screwed onto the outer periphery of a bearing 46 that passes through a round hole in the side plate 44a and an elongated hole 43 in the side plate 35a. The bearing 46 is
The bolt 39 is rotatably held. Therefore,
When the nut 45 is tightened, the side plates 35a and 44a are tightly fixed, and the elevation angle adjuster 35 is fixed.

Next, when the bolt 39 is rotated, the azimuth adjuster 42 and the elevation adjuster 35 attached thereto integrally move in the direction of the arrow (J←→K) shown in the figure with the mounting shaft 47 as the center. Can be rotated.

That is, the azimuth angle adjuster 42 is attached to the fixture 48 by the attachment shaft 47 so as to be freely rotatable in the direction of the arrow (J←→K) shown in the figure. When the bolt 39 is rotated, the azimuth adjustment tool 42 can be rotated in the direction of the arrow shown in the figure (J←→K) by the action of the bolt 39 and the azimuth adjustment nut part 49.

That is, as shown in FIGS. 4a and 4b, the azimuth adjustment nut component 49 has the bolt 39 screwed thereon, is placed on the elongated hole 50 of the bottom plate 42c of the azimuth adjustment tool 42, and is inserted into the elongated hole 50. It is engaged with a locking tool 48a of a fixing metal fitting 48 that protrudes from the lower surface through it. Fixing bracket 4
Reference numeral 8 indicates an immovable item that is placed and fixed on a pole, the ground, a wall, or the like. Therefore, when the bolt 39 is rotated, since the azimuth adjustment nut 49 remains stationary, the azimuth adjustment tool 42 rotates in the direction of the arrow (J←→K) shown in the figure while maintaining its horizontal position around the mounting shaft 47. , that is, azimuth adjustment can be obtained.

After the azimuth angle has been adjusted, bolts 51 and 52 tighten and fix the fixing fitting 48 and the bottom plate 42c of the azimuth angle adjuster 42 in order to maintain the azimuth angle. Although this tightening means is not shown,
Nuts for threading the tips of the bolts 51 and 52, respectively, are fixed to the bottom plate 42c by welding, and elongated holes are formed in the fixing fitting 48 to correspond to the respective bolts 51 and 52. It is composed of Then, bolts 51, 5 along the elongated hole.
2 is moved, and the bolt and nut are tightened at the position where the azimuth angle is determined.

This invention is not limited to the above embodiment, and as shown in FIG. 5, the bolt 39 may be used to further penetrate the mounting piece 36a of the antenna 36. In this way, by using the end of the bolt 39, the nut 45 can not only tighten the side plate 35a and the side plate 42a, but also tighten the mounting piece 36a of the antenna 36. The number can be reduced.

[Effect of idea]

As mentioned above, this idea has a simple configuration and allows elevation and azimuth adjustment independently of fixed parts such as poles, and even when the elevation angle is adjusted, the horizontal plane of the azimuth angle adjuster does not affect it as in the past. Any inconvenience caused will be eliminated. This ensures that the vertical axis of the antenna is always stable. Although there are parabolic antennas and elliptical transmitting antennas, stabilizing their posture is effective when setting the transmitting area to a specific area. Furthermore, even in the case of a receiving antenna, the present device is effective in stabilizing the aperture surface for horizontally polarized waves and vertically polarized waves.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional antenna azimuth adjustment device, Fig. 2 is a perspective view showing an embodiment of this invention, and Figs. 3 and 4 are partial cross-sectional views of the device shown in Fig. 2. , FIG. 5 is a perspective view showing another embodiment of this invention. 35... Elevation angle adjuster, 37... Elevation angle adjustment bolt, 38... Elevation angle adjustment nut part, 39... Bolt, 49... Azimuth angle adjustment nut part, 42... Azimuth angle adjuster, 43... Elongated hole, 44a, 44b...
Mounting shaft, 45... Nut, 46... Bearing, 47...
...Mounting shaft, 48...Fixing bracket.

Claims (1)

[Scope of Claim for Utility Model Registration] A bolt that is placed on a fixture so that it can freely rotate in the horizontal direction about a first mounting shaft, and whose axial movement is restricted between side plates on both sides in the direction of rotation. an azimuth adjustment tool to which is attached; a first elongated hole formed in the bottom plate of the azimuth adjustment tool in an elongated manner in the direction of rotation of the azimuth adjustment tool; between an azimuth adjustment nut part placed so as to straddle the fixing metal fitting through the first elongated hole and to which the bolt is screwed; and the side plate of the azimuth adjustment tool. a repression angle adjusting nut component attached to the bolt so that the bolt is rotatable; and a threaded portion of the elevation angle adjusting nut component so as to stand obliquely with respect to the bottom plate of the azimuth angle adjuster. An elevation adjustment bolt having one end portion screwed together; a top plate having a portion substantially in the center that rotatably bears the other end portion of the elevation adjustment bolt while restricting axial movement; and the azimuth adjustment tool. an elevation angle adjuster having a side plate that overlaps with a side plate; and an azimuth angle adjuster that responds to a change in the distance between the top plate and the elevation adjustment nut component by rotating the elevation adjustment bolt. a second mounting shaft that pivots the side plate of the azimuth angle adjuster and the side plate of the elevation angle adjuster so that the elevation angle formed by the elevation angle adjuster changes; and an end portion of the bolt formed on the side plate of the elevation angle adjuster; a second elongated hole that extends through the elevation angle adjuster and is curved in the rotational direction of the elevation angle adjuster; and means for tightening a side plate of the elevation angle adjuster and a side plate of the azimuth angle adjuster at the second elongated hole portion. An antenna orientation adjustment device characterized by: