JPS6338564Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is based on the direction of the antenna such as a parabolic antenna.
In particular, the present invention relates to an antenna direction adjustment device that adjusts the vertical direction.

Conventionally, this type of antenna direction adjusting device has been configured as shown in FIG. 1, for example. In the figure, reference numeral 1 denotes an antenna mounting fitting formed in an L-shape, and a frame 3 fixed to the back surface of a reflector 2 of a parabolic antenna, for example, is attached to a vertical piece 1a of the antenna fitting 1. One end of the flange 4 on the horizontal piece 1b of the antenna mounting bracket 1 is rotatably supported by a support portion 8 provided on the upper end flange 7 of the support column 6 via a fixing bolt 5. By tightening, the antenna mounting bracket 1 can be set at any angle. In addition, antenna mounting bracket 1
The upper end of an adjustment bolt 10 is rotatably supported at the other end of the flange 4 via a fixing bolt 9, and can be fixed by tightening the fixing bolt 9. The adjustment bolt 10 is attached to the support 6
It is inserted into a hole provided in the upper end flange 7, and its vertical movement can be adjusted using nuts 11 and 12.

The support column 6 is fixed to a bottom plate 13 as shown in FIG. 2 with fixing bolts 14, and this bottom plate 13 is fixed to a rigid plane with anchor bolts or the like. In addition, in FIG. 3, 15 is a handle provided on the upper part of the support column 6.

In the antenna direction adjustment device having such a configuration, fine adjustment of the vertical direction of the reflector 2 is performed using the fixing bolt 5.
This is done by loosening the adjustment bolt 9 and adjusting the nuts 11 and 12. Further, fine adjustment in the horizontal direction is performed by loosening the fixing bolt 14, grasping the handle 15, and rotating the support column 6.

However, this antenna direction adjustment device does not have a wide adjustment range in the vertical direction, and coarse adjustment is difficult.Furthermore, the device is large, complex, heavy, and has low productivity, resulting in high price. There were flaws.

This idea was made in view of the above circumstances,
The purpose is to provide an antenna direction adjustment device that has a wide adjustment range in the vertical direction, is easy to finely adjust and coarsely adjust, is lightweight, has high productivity, and is inexpensive.

An embodiment of this invention will be described below with reference to the drawings. In FIG. 4, reference numeral 21 denotes an L-shaped mount (pan head), and this mount 21 is attached, for example, to the back side of a reflector 22 of a parabolic antenna. The mount 21 has an arcuate portion 23, and an arcuate groove 24 is formed along the arcuate portion 23. An angle scale 25 of, for example, 10 to 80 degrees is carved along the groove 24 in the upper part of the groove 24. 26 is a scale indicator plate having a convex scale indicator 27. The scale indicator plate 26 has a width slightly wider than the width of the groove 24, and has two holes 29 formed therein for insertion of the U-shaped bolts 28. That is, the U-shaped bolt 28 is inserted into the scale indicator plate 26 through the groove 24 from the back side of the mount 21 with the support 30 in between.
The lower part of the mount 21 is fixed to the support column 30 by inserting it into the hole 29 and tightening a nut 31. Further, in the mount 21, arc-shaped grooves 32 and 33 smaller than the groove 24 are formed opposite to each other above the groove 24.
That is, by inserting the U-shaped bolt 34 from the back side of the mount 21 through the grooves 32 and 33 and into the hole of the pad 35 with the support 30 in between, and tightening the nuts 36 and 37, the upper part of the mount 21 is attached to the support 30. It is now fixed to

38 is a vertical fine adjustment mechanism. This fine adjustment mechanism 38 is composed of a bolt holding fitting 39 and a direction adjustment bolt 40. The bolt holding fitting 39 has a bottom portion formed wide by the groove 24, and both ends bent at right angles to form a U-shape, as shown in FIG. The bolt holding fitting 39 has direction adjustment bolts 40 on both end faces thereof.
Holes 41 and 42 into which the screws are inserted are formed facing each other, and a hole 43 for bolt fixing is formed at the bottom of the holes 41 and 42, respectively. This bolt holding fitting 39 allows the fixing bolt 44 to be inserted into the groove 2 from the back side of the mount 21.
4 and into the hole 43, and is fixed to the mount 21 by tightening the fixing bolt 44. One end of the direction adjusting bolt 40 is bent into an L-shape as shown in FIG. On the other hand, engagement holes 45 and 46 are formed at both ends of the scale indicating plate 26, and the engagement hole 45 on the side closer to the direction adjustment bolt 40 of these engagement holes 45 and 46 is used for direction adjustment. The L-shaped end of bolt 40 is engaged. Further, the threaded portion of the direction adjustment bolt 40 is connected to the hole 4 of the bolt holding fitting 39.
1 and 42, the bolt holding fittings 39 are clamped, and nuts 47 and 48 are screwed into the threaded portions. That is, Natsuto 47,4
By tightening and adjusting 8, the mount 21 is rotated around the grooves 32 and 33, and the vertical direction of the reflecting mirror 22 is aligned.

Reference numeral 49 denotes an adjustment bracket for horizontal adjustment, and as shown in FIG. 6, both ends of the adjustment bracket 49 are bent at right angles in the vertical direction. A hole 51 for attaching a U-shaped bolt is formed in a vertical piece (post attachment part) 50 extending downward of the adjustment bracket 49, and a hole 51 for attaching a U-shaped bolt is formed in a vertical piece (adjustment bolt attachment part) 52 extending upward. Two holes 53, 53 are formed. That is, this adjustment bracket 49 has its vertical piece 50
Insert the U-shaped bolt 54 into the hole 51 and tighten the nut 55.
The mount 21 is fixed to the support 30 by tightening the mount 21, and the lower end of the mount 21 comes into contact with the horizontal portion 56 of the support 30. Further, an adjustment bolt 57 is screwed into the hole 53 of the vertical piece 52 of the adjustment bracket 49, and its tip is brought into contact with the lower end of the mount 21.

Next, an adjustment method of this antenna direction adjustment device will be explained. First, to adjust the vertical direction, pass the support 30 through the two U-shaped bolts 28 and 34 until the tips abut the stopper 58 as shown in FIG. The mount 21 attached to the section is temporarily fixed with nuts 36 and 37. Next, in this state, mount 21
is moved along the longitudinal direction of the groove 24 to perform coarse adjustment. After that, the direction adjustment bolt 40 is inserted into the holes 41 and 42 of the bolt holding fitting 39, and the bolt holding fitting 39 is held between the nuts 47 and 48.
The L-shaped end of the direction adjustment bolt 40 is engaged with one engagement hole 45 of the scale indicator plate 26, and the fixing bolt 44 is screwed into the hole 43 of the bolt holding fitting 39 from the back side of the mount 21 through the groove 24. do. Next, the scale indicating portion 27 of the scale indicating plate 26
Adjust the nuts 47 and 48 while visually checking the indication scale, and rotate the mount 21 to make fine adjustments in the vertical direction. After completing this fine adjustment, Natsu 3
1, 31, 36, and 37 to firmly fix the mount 21 to the support column 30.

Next, horizontal adjustment will be explained. First, the mount 21 is temporarily fixed to the support column 30 in the same manner as in the case of vertical adjustment described above. Next, in this state, the mount 21 is rotated around the support column 30 to perform rough adjustment. After that, adjust the adjustment bracket 49
The vertical piece 50 is firmly fixed to the column 30 using a U-shaped bolt 54 and a nut 55 so that the lower end of the mount 21 abuts the horizontal portion 56. Next, the vertical piece 52 of this adjustment bracket 49
Adjustment bolts 57, 57 in holes 53, 53, respectively.
This adjustment bolt 57, 57 is screwed together.
Adjust and press the tips of each onto the lower end of the mount 21. Then, fine adjustment in the horizontal direction is performed by rotating the mount 21 around the support column 30. When this fine adjustment is completed, the nuts 31, 31, 36,
37 to firmly fix the mount 21 to the column 30. Incidentally, once the adjustment in the vertical and horizontal directions is completed, the adjustment bracket 49, the U-shaped bolt 54, and the adjustment bolt 57 may be removed.

In this antenna direction adjustment device, the vertical adjustment range is the arcuate groove 24 of the mount 21.
It is possible to increase the size considerably depending on the size of , and both fine and coarse adjustments can be easily made. Also,
The device has a simple configuration, is lightweight, and is suitable for mass production, resulting in a low product price.

In the above embodiments, the attached antenna is described as a parabolic antenna, but the present invention is not limited to this and can be applied to other electromagnetic horns and the like.

As described above, the antenna direction adjustment device of the present invention has a larger adjustment range in the vertical direction than the conventional one, is easy to finely adjust and coarsely adjust, is lightweight, has good productivity, and is inexpensive.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional antenna direction adjustment device, Fig. 2 is a plan view of the bottom plate used in the device shown in Fig. 1, Fig. 3 is a perspective view of main parts of the device shown in Fig. 1, and Fig. 4 is a side view showing a conventional antenna direction adjustment device. The figure is a front view of an antenna direction adjustment device according to an embodiment of the invention, and FIG. 5 is a side view, partially in section, of the vertical direction fine adjustment mechanism in the device of FIG.
6 is a side view of the apparatus of FIG. 4; FIG. 21...L-shaped mount, 22...Reflector, 2
3...Circular arc part, 24...Groove, 25...Angle scale,
26... Scale indicator plate, 27... Scale indicator, 28
... U-shaped bolt, 30 ... Support column, 32, 33 ...
Groove, 34... U-shaped bolt, 39... Bolt holding fitting, 40... Direction adjustment bolt, 41, 42...
Hole, 45, 46...Engagement hole, 47, 48...Nut, 49...Adjustment bracket, 50...Vertical piece (post attachment part), 52...Vertical piece (adjustment bolt attachment part), 54... U-shaped bolt.

Claims (1)

[Scope of utility model registration request] An antenna direction adjustment device for adjusting the vertical direction of an antenna attached to a support, comprising: an antenna mounting plate having an antenna mounting portion to which the antenna is mounted and an arcuate portion; and an arcuate shape formed along the arcuate portion of the antenna mounting plate. a groove, a vertical angle scale provided along the groove, a scale indicator plate for indicating the vertical angle scale, and an engagement hole at both ends, and the scale indicator plate. a fixing means for fixing the antenna mounting plate to the column with a groove in the antenna mounting plate in between; a fixing means for fixing the antenna mounting plate to the column; a U-shaped bolt holding fitting having screw holes at both ends; A direction adjustment bolt whose part is bent into an L-shape and whose threaded part is screwed into the screw hole of the U-shaped bolt holding fitting and the direction adjustment by holding the U-shaped bolt holding fitting together. and a fixing means for fixing the U-shaped bolt holding fitting to the groove of the antenna mounting plate, and temporarily fixing the antenna mounting plate to the support. After that, the L-shaped end of the direction adjustment bolt is engaged with one of the engagement holes of the scale indicating plate, and the U-shaped bolt holding fitting is fixed in the groove, and then the nut is adjusted, and the An antenna direction adjustment device characterized in that the vertical direction of the antenna is adjusted by rotating an antenna mounting plate.