JPH036004Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a mounting base for an antenna for receiving SHF broadcasting.

[Conventional technology]

When receiving SHF broadcasts on the ground, it is necessary to adjust both the horizontal angle and the elevation angle so that the antenna faces directly toward the broadcasting satellite. Therefore, an antenna mount that combines a horizontal movable part for horizontal angle adjustment and a vertical movable part for elevation angle adjustment has been proposed.

For example, in the one shown in FIG. 5, a horizontal movable part 43 having a level (not shown) is provided on a base 42 to which extendable legs 41 are attached, and a vertical movable part 44 is attached to this horizontal movable part 43. . This vertically movable part 4
Attach the offset parabolic antenna 23 to the antenna 4 and rotate the vertical movable part 44 in the vertical direction to obtain an elevation angle (the angle between the radio wave arrival direction and the horizontal plane) at the reception point calculated in advance, for example, 25 degrees. The pointer of the vertical movable part 44 was aligned with 25 degrees of the elevation angle scale of the horizontal movable part 43, which was kept horizontally.

[Problem that the invention attempts to solve]

However, in order to set an antenna other than the offset parabolic antenna, such as the parabolic antenna 24, at the same elevation angle of 25 degrees as the offset parabolic antenna using the antenna mounting base shown in FIG. Since it is parallel to a plane 47 including the edge, it is necessary to interpose an angle correction adapter 46 having a predetermined angle between the mounting surface 45 and the vertically movable portion 44, as shown in FIG.

Therefore, it is necessary to prepare as many conventional antenna mounting stands as there are types of antennas, or to prepare angle correction adapters as described above for each type of antenna. However, it is extremely uneconomical to prepare a large number of antenna mounting bases or a large number of angle correction adapters, and the selection and installation work of angle correction adapters is complicated. Another drawback is that it takes time.

The present invention has been devised in view of the above points, and aims to provide an antenna mounting base that can be easily set without an insert such as an angle correction adapter even when the types of antennas are different.

[Means for solving problems]

The structure of the present invention for achieving the above object will be explained using FIGS. 1 to 4 corresponding to embodiments. A horizontal horizontal axis 10 is provided protruding from the horizontal movable part 3 which is horizontally rotatably mounted on the horizontally arranged support base 1, and one end of the second elevation adjustment movable part 11 is rotatable on this horizontal axis. The first elevation adjustment movable part 16, which has an antenna mounting surface parallel to the horizontal axis 10 at the other end of the second elevation adjustment movable part 11, can be rotated on an axis parallel to the horizontal axis 10. At the same time, one of the sets of the first elevation adjustment movable part 16 and the second elevation adjustment movable part 11 and the set of the second elevation adjustment movable part 11 and the horizontal movable part 3 is attached to the antenna type. and the other set is set at the elevation angle reference position corresponding to the receiving point.

[Effect]

To set the antenna on the antenna mount,
First, the inclination of the support stand 1 oriented in a predetermined direction is adjusted so that the horizontal movable part 3 attached thereto becomes horizontal. Then, for example, the first elevation adjustment movable part 16 is rotated up and down with respect to the second elevation adjustment movable part 11, and set on the movable part 11 at an elevation reference position corresponding to the type of antenna to be attached. Next, the second elevation adjustment movable part 11 is rotated up and down with respect to the horizontal movable part 3, and is set on the movable part 3 at the elevation angle position at the receiving point. On the contrary, if the first set is set at the elevation angle position at the receiving point, the latter set is set at the elevation angle reference position depending on the type of antenna. When the elevation angle setting of the antenna is completed in this way, the horizontal angle of the horizontally movable part 3 is adjusted so that the antenna faces directly toward the broadcasting satellite.

Next, in order to mount an antenna of a different type to the installed antenna on the mounting base, the elevation angle at the reception point is constant regardless of the type of antenna, so one of the above pairs should be adjusted to the elevation angle corresponding to the new antenna type. Just set it at the reference position and then replace the old and new antennas.

Note that the antenna is attached in advance to the first elevation adjustment movable part 16.
It may be attached to the movable part 16 before operation, or may be attached to the movable part 16 during the operation process.

〔Example〕

Embodiments of the present invention will be described based on the drawings. 1st
In Figures to Figures 4, 1 is a base on which three telescopic legs 2 are attached so that they can be opened and closed, and 3 is a spirit level 3 attached to the main body 5.
1 and is horizontally rotatably attached to a stepped fixed shaft 4 fixed to the base 1, and is fixed by screwing a screw into a slit 6 formed in the main body 5 and reaching the stepped fixed shaft 4. This is done by tightening a clamp knob 8 which is attached to the main body 5 through a shaft 7.

The horizontal movable part 3 has a horizontal shaft 10 protruding from one side of the main body part 5, and one end of the second elevation adjustment movable part 11 is rotatably attached to this. This movable part 11 is fixed by inserting a screw shaft 13 into a slit 12 that reaches the horizontal shaft 10.
This is done by tightening the pern rod 14 which passes through the movable part 11 and is attached to the movable part 11. Second elevation adjustment movable part 11
has a horizontal shaft 15 projecting from the other end in parallel with the horizontal shaft 10 of the horizontal movable section 3, and a first elevation adjustment movable section 16 is rotatably attached to the horizontal shaft 15.

The first elevation adjustment movable part 16 is provided with an antenna mounting seat 17 having a mounting surface 32 parallel to the horizontal axis 15,
A positioning pin 18 and a clamp bolt 19 are attached to this mounting seat 17.

Note that 20 is a bolt for positioning and fixing the first elevation adjustment movable part 16 to the second elevation adjustment movable part 11;
Reference numeral 22 denotes a contact plate attached to the support shaft 15 with bolts 21, which restricts movement of the movable part 16 in the axial direction with the back surface 34 of the movable part 11.

Next, the procedure for setting the antenna on the antenna mount will be explained. First, align the reference line (not shown) of the presser plate 9, which is fixed to the top surface of the fixed shaft 4 and also serves to prevent the horizontal movable part 3 from falling off, with the pointer of the compass
When set, the height of the leg 2 is adjusted so that the level 31 of the horizontal movable part 3 points to the horizontal plane. When the adjustment is completed, the first
The movable part 16 for adjusting the elevation angle is rotated up and down, and the movable part 16 is fixed to the movable part 11 with the bolt 20 at an elevation reference position corresponding to the type of antenna to be attached. In this embodiment, when the antenna is an offset parabolic antenna, the pointer 26 of the movable part 16 is aligned with the scale _P1 of the antenna selection scale plate 25, which is located in front of the movable part 11 and whose center is on the axis of the horizontal axis 15.
When using parabolic antenna 24, scale pointer 26
It is set according to P ₂ . When the setting is completed, fix the antenna to the mounting seat 17 with the positioning pin 18 and clamp bolt 19, and then
The pan rod 14 rotates the movable part 11 up and down with respect to the horizontal movable part 3 to take the elevation angle position at the receiving point.
in the tightening direction to connect the movable part 11 to the horizontal movable part 3
Set to . In this embodiment, as shown in FIG.
The pointer 30 of the movable part 11 is aligned with the elevation angle scale at the reception point of the antenna elevation angle scale plate 29 attached to the plate 28 which prevents the antenna from coming off.

When the elevation angle setting is completed, the horizontal movable part 3 is rotated using the pan rod 14, and the scale corresponding to the receiving location of the azimuth scale (not shown) engraved along the periphery of the holding plate 9 on the top surface of the main body part 5 is set on the holding plate. By setting the horizontal movable part 3 on the base 1 using the clamp knob 8 in alignment with the reference line 9, the antenna is made to directly face the direction of the broadcasting satellite.

In this embodiment, the elevation angle reference position, elevation angle and azimuth angle at the receiving point are set according to the type of antenna using a pointer and a scale plate. Other known scale plates may also be used. In addition, instead of the pointer and scale plate, the output signal from the receiver can be inputted into the electric field strength meter of the tuner dedicated to satellite broadcasting, and the elevation angle etc. can be set at the position where the maximum electric field strength is obtained, or other suitable electrical means can be used. Good too. . Further, in this embodiment, the bolt 20 connecting the movable parts 11 and 16 is provided on the mounting surface 32 of the antenna mounting seat 17, but the mounting surface 32
If the antenna is provided at a location other than the movable portion 16, the antenna can be attached to the mounting seat 17 from the very end.

[Effect of idea]

As explained above, according to the present invention, different types of antennas can be set at a common predetermined elevation angle (elevation angle at the receiving site) by changing the elevation angle reference position depending on the type, so that antennas of different types can be set at a common predetermined elevation angle (elevation angle at the receiving site). It is not necessary to prepare an antenna mount or an angle correction adapter, which is truly economical, and the antenna can be exchanged very easily since it is only necessary to change the elevation angle reference position to exchange it with a different type of antenna. Furthermore, since it has a relatively simple configuration, it can be provided at low cost.

[Brief explanation of the drawing]

Fig. 1 is a side view of an embodiment of the present invention, Fig. 2 is a front view of an antenna mounting angle adjustment device of an embodiment of the invention, Fig. 3 is a side view of the same partially cut away, and Fig. 4 is the same as Fig. 3. 5 and 6 are side views of a conventional product with an antenna attached, respectively. 1...Horizontal support stand (base), 3...Horizontal movable part,
10... Horizontal axis, 11... Second elevation adjustment movable part,
16... First elevation adjustment movable part, 23... Offset parabolic antenna, 24... Parabolic antenna.

Claims (1)

[Scope of utility model registration request] A horizontal horizontal axis is protruded from a horizontal movable part that can be horizontally rotated on a horizontal support base, and one end of the second elevation adjustment movable part is rotatably attached to the horizontal axis, and the second elevation angle adjustment is performed. A first elevation adjustment movable part having an antenna mounting surface parallel to the horizontal axis is attached to the first elevation adjustment movable part so as to be rotatable on an axis parallel to the horizontal axis, and the first elevation adjustment movable part and the second elevation angle Set one of the set of the adjustment movable part, the second elevation angle adjustment movable part, and the horizontal movable part at the elevation reference position according to the type of antenna, and set the other set at the elevation angle position at the reception point. An antenna mounting stand characterized by being configured such that it can be set.