JPH10135719A - Antenna direction adjustment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and accurately adjust the direction of an antenna with a simple, small sized and light weight structure. SOLUTION: The adjustment device is a device that fixes an antenna 1 to a support 2 in the elevating angle direction and the azimuth angle direction in a freely adjustable way, is provided with a support metallic fixture 10 fixed to the support 2, an antenna metallic fixture 20 fixed to the antenna 1, a center metallic fixture 30 connecting both metallic fixtures interposed between the antenna metallic fixture 20 and the support metallic fixture 10, and the center metallic fixture 30 is fitted turnably around an azimuth angle turning shaft 30 with respect to the support metallic fixture 10 in a direction of an azimuth angle, and the antenna metallic fixture 20 is fitted around an elevating angle rotary shaft 23 with respect to the center metallic fixture 30 in a direction of the elevating angle, the center metallic fixture 30 is adjusted in a direction of the azimuth angle by the azimuth angle adjustment means 40 and the antenna metallic fixture 20 is adjusted in a direction of the elevating angle by the elevating angle adjustment means 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna direction adjusting device for fixing an antenna in an azimuth direction and an elevation angle direction with respect to a support column, and more particularly, to an antenna direction adjustment device having a simple, compact and lightweight structure. The present invention relates to an antenna direction adjustment device suitable for fine adjustment of a relatively small parabolic antenna among microwave antennas.

[0002]

2. Description of the Related Art Conventionally, as this kind of antenna direction adjusting device, for example, a direction adjusting device of an antenna device (antenna) using a parabolic reflector described in Japanese Utility Model Application Laid-Open No. 61-154003 has been known. I have.

FIGS. 4 to 6 are views showing an example of the conventional antenna direction adjusting device. FIG. 4 is a schematic front view of the antenna direction adjusting device, and FIG. 5 is a diagram of the antenna direction adjusting device shown in FIG. FIG. 6 is a partial side view of the antenna direction adjusting device shown in FIG.

[0004] As shown in these figures, this conventional antenna direction adjusting device includes a support 2 for supporting an antenna 100.
00, and an arm 101 fixed to an appropriate position after being rotatably mounted on the arm 101, and a horizontal movable base 1 mounted on the arm 101 and rotated in an azimuth direction about a rotation axis 107.
02, and rotating shafts 104 and 105 attached to the side wall of the horizontal movable base 102 and provided in parallel with the arm 101.
, And a tiltable movable table 103 that rotates in the direction of the elevation angle with respect to the center. The antenna 100 is mounted on the tiltable movable table 103.

[0005] A screw drive mechanism 111 is screwed to a crank mechanism 110 fixed to the tilt movable base 103.
By rotating the handle 111a, the crank mechanism 110 is operated, and the tilt movable table 103 is rotated in the elevation angle direction. On the other hand, the crank mechanism 120 fixed to the horizontal movable base 102 has a screw drive mechanism 121
The crank mechanism 120 operates by rotating the handle 121a, and the horizontal movable base 102 rotates in the azimuth direction.

According to the conventional antenna direction adjusting device having such a configuration, the antenna 100 is raised and lowered about the rotation shafts 104 and 105 shown in FIG. 6 by the crank mechanisms 110 and 120 and the screw driving mechanisms 111 and 121. Rotation is performed in the angular direction and in the azimuth direction about the rotation axis 107 shown in FIG. 5 so that the direction can be adjusted.

In FIG. 4, reference numeral 106 denotes the tilt movable table 103.
Tilting movable table 103 and horizontal movable table 10
2, the tilt movable table 103 after the direction adjustment.
Is fixed to the horizontal movable base 102. 10
Reference numeral 6a denotes a guide hole formed on the tilt movable table 103 side, through which a fixing bolt 106 is movably penetrated.

In FIG. 6, reference numerals 108 and 109 denote fixing bolts of the horizontal movable base 102.
In addition, the horizontal movable table 102 after the direction adjustment is fixed to the arm 101 by integrally penetrating the arm 101. Further, reference numerals 108a and 109a shown in FIG. 5 denote guide holes formed in the arm 101 side.
109 is movably penetrated.

[0009]

However, in such a conventional antenna direction adjusting device, when fine adjustment in the elevation angle direction is performed, first, the rotating shafts 104 and 105 and the fixing bolt 106 are loosened appropriately and the screw drive is performed. Mechanism 111
The handle 111a is operated to adjust the antenna by the crank mechanism 110, and then the rotating shafts 104 and 105 are adjusted.
In addition, an operation of retightening the fixing bolt 106 was required.

Also, when fine adjustment in the azimuth direction is performed, similarly, the rotating shaft 107 and the fixing bolts 108, 109
Is appropriately loosened, and the handle 121a of the screw drive mechanism 121 is loosened.
, The antenna is adjusted by the crank mechanism 120, and then the rotating shaft 107 and the fixing bolts 108 and 109 are adjusted.
Had to be tightened.

As described above, in the conventional antenna direction adjusting device, there are many operation points at the time of adjusting the direction of the antenna, the adjusting operation is extremely complicated, and the structures of the crank mechanism and the screw mechanism are complicated. Since it is composed of a large number of components, there is a problem that the entire device becomes complicated and the cost increases, and the entire antenna device also becomes heavy.

The provision of such a complicated and large-sized adjusting device which is complicated in the adjustment work obstructs the demands for a small parabolic antenna or the like, in particular, for reducing the size and weight, facilitating handling and operability. Had become.

Further, in this conventional antenna direction adjusting device, since the locking mechanism is not provided on the handle portion of the screw mechanism, which is an operation portion at the time of adjustment, the work of tightening the rotating shaft and the fixing bolt after the direction adjustment is performed. When performing the above, there is a possibility that an adjustment deviation may occur. For this reason, it has been extremely difficult to make a slight fine adjustment of the antenna.

Japanese Patent Application Laid-Open No. 61-288502 discloses an antenna direction in which the angle of the antenna can be adjusted in both directions of elevation and azimuth by operating an adjustment rod having a grip. An adjustment device has been proposed.

According to the antenna direction adjusting device disclosed in Japanese Patent Application Laid-Open No. 61-288502, the direction of the antenna can be surely adjusted by a simple operation. Without happening,
It was possible to effectively prevent the occurrence of an adjustment deviation as in the above-described conventional device.

However, in the antenna direction adjusting device disclosed in Japanese Patent Application Laid-Open No. 61-288502, the structure of the adjusting device is complicated, and the size of the device is increased due to the complicated structure. As with the device of No. 61-154003, the problem of being too large for use in a relatively small antenna could not be solved.

The present invention has been proposed in order to solve such problems of the prior art, and the direction of the antenna can be easily and accurately adjusted by a simple, small, and lightweight structure. An object of the present invention is to provide an antenna direction adjusting device suitable for fine adjustment of a relatively small parabolic antenna or the like.

[0018]

According to a first aspect of the present invention, there is provided an antenna direction adjusting apparatus for fixing an antenna in a manner that the antenna can be adjusted in elevation and azimuth directions with respect to a support column. An adjustment device, comprising: a support fitting fixed to the support, an antenna support fixed to the antenna, a center fitting interposed between the antenna mount and the support support and connecting both the support, and an azimuth adjustment. Means,
Means for adjusting the elevation angle, wherein the center fitting is rotatably mounted in the azimuth direction with respect to the support bracket, and the antenna fitting is mounted so as to be rotatable in the elevation angle direction with respect to the center fitting. And the central fitting is
The azimuth angle adjusting means is adjusted in the azimuth direction, and the antenna fitting is adjusted in the elevation angle direction by the elevation angle adjusting means.

Further, in the antenna direction adjusting apparatus according to the present invention, the column fitting is formed of a plate-like member which is disposed opposite to the column with the column as a center, and the height direction of the column and the periphery of the column. The center metal fitting is formed of a plate-like member having a horizontal plate portion and a vertical plate portion each having a vertical cross section formed in an inverted L-shape. Is mounted on the upper surface of the support bracket so as to be rotatable in an azimuth direction about an azimuth rotation axis, and an inverted L-shaped vertical plate portion is spaced apart from the support bracket and arranged in an elevation angle direction. Wherein the antenna fitting comprises a plate-like member having a short plate part and a long plate part having an L-shaped cross section, and the L-shaped short part is a vertical plate of the center fitting. Is attached to the part so that it can rotate in the elevation angle direction about the elevation angle rotation axis. Together, the long plate portion of the L-shape is fixed to the antenna, the azimuth angle adjusting means comprises a shaft member that is disposed parallel to the horizontal plate portion of the center bracket,
One end of the shaft member is rotatably fixed in the azimuthal direction with respect to the support bracket, and the other end of the shaft member is axially adjustable with respect to the vertical plate portion of the center bracket. Further, the elevation angle adjusting means is formed of a shaft-shaped member disposed in parallel with the short plate portion of the antenna fitting, and one end of the shaft-shaped member is positioned with respect to the long plate portion of the antenna fitting. To be rotatable in the elevation angle direction,
The other end of the shaft-like member is configured to be axially adjustable so as to be adjustable with respect to a screwing plate portion protruding from a vertical plate portion of the center fitting in parallel with a long plate portion of the antenna fitting.

The antenna direction adjusting device according to a third aspect of the present invention includes a fixing bolt for integrally fixing the center metal fitting and the column metal fitting, and the azimuthal rotation includes a fixing bolt penetrating the center metal fitting. A long guide hole is formed in the circumferential direction of the shaft.

Further, the antenna direction adjusting device according to a fourth aspect of the present invention includes a fixing bolt for integrally fixing the center fitting and the antenna fitting, and the elevation angle rotation, wherein the fixing bolt penetrates the antenna fitting. A long guide hole is formed in the circumferential direction of the shaft.

According to the antenna direction adjusting apparatus of the present invention having such a configuration, the direction of the antenna can be easily adjusted in both the azimuth angle and the elevation angle by operating the azimuth angle adjusting means and the elevation angle adjusting means. Also, even after the desired antenna angle is obtained, the azimuth angle adjusting means and the elevation angle adjusting means are fixed to the center metal fitting and the screw plate part, respectively. Even if the adjustment is performed, no misalignment occurs.

The direction of the antenna can be adjusted by rotating the antenna bracket and the center bracket about the respective rotation axes in the elevation and azimuth directions by the azimuth angle adjustment means and the elevation angle adjustment means. The antenna can be easily and reliably fine-tuned in both directions of elevation and azimuth simply by operating each adjustment means in a state in which the antenna is fixed to the antenna.

Further, in the present antenna direction adjusting device, since the antenna adjusting mechanism is constituted only by basic mechanical structures such as bolts and nuts, the entire device has an extremely simple structure, and is reduced in size and weight. Can be realized.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the antenna direction adjusting apparatus according to the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing an antenna direction adjusting apparatus according to the present embodiment, FIG. 2 is a left side view thereof, and FIG.
FIG.

As shown in these figures, the antenna direction adjusting device of the present embodiment is a device for fixing the antenna 1 to the column 2 so as to be adjustable in the elevation and azimuth directions. The fixed support pillar 10 and the antenna 1
And a center fitting 30 interposed between the antenna fitting 20 and the support fitting 10 and connecting the two fittings, and further comprising an azimuth angle adjusting means 40 and an elevation angle adjusting means 50. It has become.

The support fitting 10 is composed of a pair of plate-like members (one metal fitting 10a and another metal fitting 10b) formed in a U-shape in vertical cross section with openings facing each other. It is arranged so as to be adjustable in the height direction of the support and in the direction around the support.

As shown in FIG. 1, the support bracket 10 has a notch at the center of the opposing surface of one of the brackets 10a and the other of the brackets 10b so that the support 2 can be clamped by being fitted on the outer periphery of the support 2. A part is formed. And this support bracket 10
Are fixed to the column 2 by four fixing bolts 11.

The center fitting 30 is a plate-like member comprising a horizontal plate portion 31 and a vertical plate portion 32 having a vertical cross section formed in an inverted L-shape. It is attached to the upper surface of one metal fitting 10a so as to be rotatable in the azimuth direction about the azimuth rotation axis 33.

The inverted L-shaped vertical plate portion 32 of the center metal member 30 is used to hold the column metal member 10 when the center metal member 30 rotates.
The metal fittings 10a are arranged along the elevation angle direction so as to be spaced apart from each other with a gap that does not interfere with one of the metal fittings 10a.

The azimuth rotation shaft 33 is a shaft-shaped member that penetrates through the horizontal plate portion 31 of the center fitting 30 and serves as a rotation axis. In the present embodiment, the azimuth rotation shaft 33 of the horizontal plate portion 31 and the support It is constituted by a bolt integrally penetrating one metal fitting 10a. In the vicinity of the azimuth rotation shaft 33, a fixing bolt 34 is provided, which penetrates the horizontal plate portion 31 of the center fitting 30 and one fitting 10a of the support fitting 10 integrally.

Further, the horizontal plate portion 31 of the center fitting 30
On the circumference centered on the azimuth rotation axis 33, a curved guide hole 31a, which is long in the circumferential direction of the azimuth rotation axis 33 and through which the fixing bolt 34 penetrates, is formed. The center fitting 30 through which the fixing bolt 34 passes can rotate around the azimuth rotation axis 33 while being guided by the guide hole 31a.

The guide hole 31a of the center metal fitting 30 is
In the present embodiment, it is formed in a curved shape along the circumferential direction with the azimuth rotation axis 33 as the center. It is not particularly limited to a curved shape.

Here, the azimuth rotation shaft 33 and the fixing bolt 34 are used to connect the center metal member 30 to the one metal member 1 of the column metal member 10.
It also functions as a fixing bolt for fixing to 0a. That is, the azimuth rotation shaft 33 and the fixing bolt 34 become the rotation shaft and the guide shaft of the center metal member 30 when the screw is loosened, and when the screw is tightened, the center metal member 30 is connected to the metal member 10a It functions as a fixing bolt for fixing to.

The antenna fitting 20 is a plate-like member comprising a short plate portion 21 and a long plate portion 22 having an L-shaped cross section, and the L-shaped short plate portion 21 is perpendicular to the center fitting 30. It is attached to the plate portion 32 so as to be rotatable in the elevation angle direction about the elevation angle rotation shaft 23. The L-shaped long plate portion 22 of the antenna fitting 20 is, as shown in FIG.
It protrudes in the horizontal direction and is fixed to the back surface of the antenna 1.

The elevation angle rotation shaft 23 is a shaft-shaped member that penetrates the short plate portion 21 of the antenna fitting 20 and serves as a rotation axis. In the present embodiment, the short plate portion 21 of the antenna fitting 20 and the center fitting 30 It is constituted by a bolt integrally penetrating the vertical plate portion 32. A fixing bolt 24 is provided in the vicinity of the elevation angle rotation shaft 23 so as to integrally penetrate the vertical plate portion 32 of the center fitting 30 and the short plate portion 21 of the antenna fitting 20.

Further, the short plate portion 2 of the antenna fitting 20
In FIG. 1, a curved guide hole 21a, which is long in the circumferential direction of the elevation angle rotation shaft 23 and through which a fixing bolt 24 penetrates, is formed on the circumference centered on the elevation angle rotation shaft 23. Bracket 20 through which the fixing bolt 24 passes
Can rotate while being guided by the guide hole 21a about the elevation rotation axis 23.

The guide hole 2 of the antenna fitting 20
1a, the guide hole 31 of the center fitting 30 described above is also used.
Similarly to a, in the present embodiment, it is formed in a curved shape along the circumferential shape of the elevation angle rotation shaft 23, but if the antenna fitting 20 through which the fixing bolt 24 is penetrated is a rotatable long hole shape. The shape is not particularly limited to a curved shape.

Further, the elevation angle rotation shaft 23 and the fixing bolt 24 also function as fixing bolts for fixing the antenna fitting 20 to the vertical plate 32 of the center fitting 30. That is, the elevation angle rotating shaft 23 and the fixing bolt 24 function as a rotating shaft and a guide shaft of the antenna fitting 20 when the screw is loosened, and function as fixing bolts for fixing the antenna fitting 20 to the center fitting 30 when tightened. doing.

As shown in FIG. 3, the azimuth angle adjusting means 40 is a shaft-shaped member provided in parallel with the horizontal plate 31 of the center metal fitting 30, and includes an adjusting bolt 41, a rotating metal fitting 42, and an adjusting nut. 43.

Then, one end of the shaft-shaped adjusting bolt 41 is connected to one of the pair of column fittings 10 by a fitting 10a.
2, the other end of the adjusting bolt 41 penetrates the vertical plate portion 32 of the center metal fitting 30, and the adjusting nut 43 is screwed into the adjusting bolt 41 to be axially adjustable. It is fixed to.

Here, the rotation fitting 42 (42a, 42b)
Is composed of one U-shaped metal fitting 42a and another U-shaped metal fitting 42b. The one U-shaped metal fitting 42a is fixed to the one metal fitting 10a of the support metal fitting 10, and the other U-shaped metal fitting is formed. 4
2b is pivotally mounted by a bolt 42c so as to be rotatable in the azimuth direction with respect to one U-shaped bracket 42a.

One end of an adjustment bolt 41 penetrating through the vertical plate portion 32 of the center metal fitting 30 and the one U-shaped metal fitting 42a is fixed to another U-shaped metal fitting 42b of the rotating metal fitting 42. I have. Further, the other end of the adjusting bolt 41 penetrates the vertical plate portion 32 of the center metal fitting 30, and
A pair of adjustment nuts 43a and 43b are screwed so as to sandwich the vertical plate 32 of the center metal fitting 30.

Thus, as described later, by adjusting the positions of the adjustment nuts 43a and 43b with respect to the adjustment bolt 41, the adjustment bolt 41 is adjusted in the axial direction.
The center fitting 30 is rotated and adjusted in the azimuth direction with respect to the support fitting 10.

Although not shown, the vertical plate 32 of the center fitting 30 through which one end of the adjusting bolt 41 passes and the through-hole of the U-shaped fitting 42a are elongated holes in the azimuth direction. The adjustment bolt 41 can move in the azimuthal direction with the rotation of the center metal fitting 30.

On the other hand, the elevation angle adjusting means 50 is, as shown in FIG. 2, a shaft-shaped member provided in parallel with the short plate portion 21 of the antenna fitting 20, and comprises an adjusting bolt 51, a rotating fitting 52 and an adjusting means. It consists of a nut 53 for use.

One end of the shaft-shaped adjusting bolt 51 is fixed to the long plate portion 22 of the antenna fitting 20 by a rotating fitting 52 so as to be rotatable in the elevation angle direction. Penetrates a screwing plate portion 54 projecting from the vertical plate portion 32 of the center fitting 30 in parallel with the long plate portion 22 of the antenna fitting 20, and an adjusting nut 53 is screwed into the fitting portion so as to be adjustable in the axial direction. Has been fixed.

Here, the rotation fitting 52 (52a, 52b)
Consists of one U-shaped bracket 52a and another U-shaped bracket 52b, and one U-shaped bracket 52a is
And the other U-shaped metal fitting 5
2b is pivotally mounted on one U-shaped bracket 52a by a bolt 52c so as to be rotatable in the elevation angle direction.

One end of an adjusting bolt 51 is fixed to another U-shaped metal fitting 52b of the rotating metal fitting 52. The other end of the adjusting bolt 51 is connected to a vertical plate of the center metal fitting 30. In the portion 32, a threaded plate portion 54 projecting in parallel with the long plate portion 22 of the antenna fitting 20 is penetrated, and a pair of adjusting nuts 53a, 53b are screwed so as to sandwich the screwed plate portion 54. .

Thus, as will be described later, by adjusting the positions of the adjusting nuts 53a and 53b with respect to the adjusting bolt 51, the adjusting bolt 51 is adjusted in the axial direction.
The antenna bracket 20 is rotated and adjusted in the elevation angle direction with respect to the center bracket 30.

Next, the operation of the antenna direction adjusting apparatus according to the present embodiment having such a configuration will be described. First, coarse adjustment of the height and azimuth of the antenna 1 with respect to the support 2 is performed.

That is, the antenna fitting 20 is fixed to the back surface of the antenna 1, and the antenna fitting 20, the center fitting 30, and the support fitting 1 attached to the antenna 1 are mounted.
Assemble with 0.

Then, the pillar fitting 10 assembled with the antenna 1, the antenna fitting 20, and the center fitting 30 is roughly adjusted by positioning it at a desired height and azimuth of the pillar 2. And a pair of support brackets 10 (10
a, 10b) to hold the support column 2 and four bolts 1
1 is used to fix the support 2.

In this state, fine adjustment of the azimuth angle and the elevation angle direction of the antenna 1 is performed as follows. First, when adjusting the azimuth direction of the antenna 1, the azimuth rotation shaft 33 of the center bracket 30, the fixing bolt 34, and the adjustment nuts 43 a and 43 b of the azimuth adjustment means 40 are appropriately loosened. When the antenna 1 is directed to the right from the initial azimuth angle of the coarse adjustment, the adjustment nut 43 is used.
tighten a.

When the adjustment nut 43a is tightened,
In FIG. 3, the position of the adjustment nut 43 a moves on the screwed adjustment bolt 41 in the left direction in the drawing, that is, in the direction opposite to the column 2. As a result, the adjustment bolt 41
Is adjusted toward the column 2 along the axial direction, and the center fitting 30 is pushed in the opposite direction to the column 2 by the adjustment bolt 41 and the adjustment nut 43a.

Then, the center metal 3
0 is the guide hole 31a about the azimuth rotation axis 33.
As a result, the antenna 1 is adjusted in the azimuth direction toward the right. At this time, the adjustment bolt 41 fixed to the center fitting 30 is rotated by the U-shaped fitting 42 so that
The end on the side rotates with the center metal fitting 30.

On the other hand, when the antenna 1 is directed to the left from the initial azimuth angle of the coarse adjustment, the center fitting 30 is fixed by tightening the adjustment nut 43b in a manner opposite to the above case. The antenna 1 is adjusted leftward by being pulled to the two sides. At this time, the adjustment bolt 41 fixed to the center metal fitting 30 is rotated by the rotation of the U-shaped metal fitting 42 so that the end on the support column 2 side is rotated with the center metal fitting 30.

Next, when adjusting the elevation angle direction,
First, the elevation rotation shaft 23, the fixing bolt 24, and the adjustment nuts 53a and 53b are appropriately loosened. In this state, when the antenna 1 is directed downward from the initial elevation angle, the adjustment nut 53b is tightened.

When the adjusting nut 53b is tightened,
In FIG. 2, the adjustment nut 53 b is placed on the adjustment bolt 51 screwed to the left side in the drawing, that is, the antenna 1.
Move in the direction of. As a result, the adjustment bolt 51 is adjusted along the axial direction in a direction opposite to the antenna 1, and the antenna fitting 20 is adjusted by the adjustment bolt 51 and the adjustment nut 5.
3b causes the antenna 1 to be pulled in the opposite direction.

By this pulling force, the antenna fitting 20 rotates downward around the elevation angle rotation axis 23 while being guided by the guide holes 21a, whereby the antenna 1 moves downward in the elevation angle direction. Will be adjusted. At this time, the adjustment bolt 51 fixed to the antenna fitting 20 is maintained in a state of being disposed in parallel with the short plate portion 21 of the antenna fitting 20 due to the rotation of the U-shaped fitting 52. You.

On the other hand, when the antenna 1 is directed upward from the initial elevation angle, the adjustment nut 53a is tightened, contrary to the above-described case. Adjustment nut 53
a, the adjusting nut 5 in FIG.
3a moves on the screwed adjustment bolt 51 in the right direction in the drawing, that is, in the direction opposite to the antenna 1, so that the antenna fitting 20 has the adjustment bolt 51 and the adjustment nut 5
Pushed in the direction of the antenna 1 by 3a, the antenna 1 is adjusted upward.

Also at this time, the adjusting bolt 51 fixed to the antenna fitting 20 is arranged in parallel with the short plate portion 21 of the antenna fitting 20 by turning the U-shaped fitting 52. The state is maintained as it is.

When the azimuth and the elevation angle of the antenna 1 have reached desired values by the above operation, the adjusting nuts 43a, 43b and 53a, 53b are tightened and fixed. Bolt 24,
Tighten 34 again. Thus, the direction adjustment of the antenna 1 is completed.

As described above, according to the antenna direction adjusting device of this embodiment, the fine adjustment of the antenna 1 can be easily performed in both the azimuth angle and the elevation angle by operating the azimuth angle adjusting means 40 and the elevation angle adjusting means 50. Can be performed, and it is possible to tighten and fix with the adjustment nut on the corn where the desired antenna angle is obtained, so even after performing the tightening work with each rotating shaft and fixing bolt,
There is no misalignment of the antenna 1.

Further, the antenna fitting 20 and the center fitting 30 can be turned in the elevation and azimuth directions about each rotation axis in accordance with the tightening position of the adjusting nut. Only by operating the adjustment nut in the fixed state, the antenna 1 can be finely adjusted easily and reliably in both the elevation angle and the azimuth angle.

Further, according to the antenna direction adjusting apparatus, since the antenna direction adjusting apparatus is composed only of basic mechanical structures such as bolts and nuts, the whole apparatus has a very simple structure and can be reduced in size and weight. Can be.

[0067]

As described above, according to the antenna direction adjusting apparatus of the present invention, the direction of the antenna can be accurately and easily adjusted by a simple, small, and lightweight structure. It is suitable for fine adjustment of a parabolic antenna or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an antenna direction adjusting device according to the present invention.

FIG. 2 is a left side view showing an embodiment of the antenna direction adjusting device of the present invention.

FIG. 3 is a rear view showing an embodiment of the antenna direction adjusting device of the present invention.

FIG. 4 is a schematic front view of a conventional antenna direction adjusting device.

FIG. 5 is a perspective view of a main part of a conventional antenna direction adjusting device.

FIG. 6 is a partial side view of a conventional antenna direction adjusting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Post 10 Post bracket 20 Antenna bracket 30 Center bracket 40 Azimuth angle adjustment means 50 Elevation angle adjustment means

Claims (4)

[Claims] 1. An antenna direction adjusting device for fixing an antenna in an elevation direction and an azimuth direction with respect to a support so as to be adjustable, comprising: a support fitting fixed to the support; and an antenna support fixed to the antenna. A center fitting interposed between the antenna fitting and the support fitting to connect the two fittings; an azimuth angle adjusting means; and an elevation angle adjusting means, wherein the center fitting has an orientation relative to the support fitting. Attached so as to be rotatable in the angular direction, the antenna fitting is attached so as to be rotatable in the elevation angle direction with respect to the center fitting, and the center fitting is adjusted in the azimuthal direction by the azimuth adjusting means, and The antenna direction adjusting device, wherein the antenna fitting is adjusted in the elevation angle direction by the elevation angle adjusting means. 2. The method according to claim 1, wherein the support bracket is formed of a plate-like member disposed to face the support with the support centered therebetween, and is fixed so as to be adjustable in the height direction of the support and in the circumferential direction of the support. The center metal fitting is made of a plate-shaped member having a horizontal plate part and a vertical plate part whose vertical cross section is formed in an inverted L-shape, and the inverted L-shaped horizontal plate part is azimuthally mounted on the upper surface of the support bracket. Attached so as to be rotatable in the azimuthal direction about the rotation axis, an inverted L-shaped vertical plate portion is disposed in the elevation angle direction apart from the support bracket, and the antenna bracket has a transverse cross section. It is composed of a plate-shaped member having a short plate portion and a long plate portion formed in an L-shape, and the L-shaped short plate portion is raised on a vertical plate portion of the center metal fitting around an elevation angle rotation axis. The antenna is rotatably mounted in an angular direction, and the L-shaped long plate portion is The azimuth adjusting means is fixed, and the azimuth adjusting means is formed of a shaft member disposed in parallel with the horizontal plate portion of the center metal fitting, and one end of the shaft member is rotated in the azimuth direction with respect to the support bracket. While being freely fixed, the other end of the shaft-shaped member is fixed so as to be adjustable in the axial direction with respect to the vertical plate portion of the center metal fitting. Further, the elevation angle adjusting means includes a short plate portion of the antenna metal fitting. And one end of the shaft member is rotatably fixed to the long plate portion of the antenna fitting in the elevation angle direction, and the other end of the shaft member. The antenna direction adjusting device according to claim 1, wherein the antenna direction adjusting device is axially adjustable with respect to a screwing plate portion projecting from a vertical plate portion of the center metal fitting in parallel with a long plate portion of the antenna metal fitting. 3. A fixing bolt for integrally fixing the center metal fitting and the column metal fitting, and a guide hole which is long in a circumferential direction of the azimuth rotation axis and through which the fixing bolt penetrates, is provided in the center metal fitting. Claim 2 established
An antenna direction adjusting device as described in the above. 4. A fixing bolt for integrally fixing the center metal fitting and the antenna metal fitting, and a guide hole long in a circumferential direction of the elevation angle rotation axis, through which the fixing bolt passes, is formed in the antenna metal fitting. The antenna direction adjusting device according to claim 2 or 3, wherein the antenna direction adjusting device is provided.