JPH0559909U - Antenna elevation angle indicator - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide an antenna elevation angle indicating mechanism capable of setting an elevation angle in a directivity direction of a planar antenna 10 to a predetermined angle by a simple operation. [Structure] The planar antenna 10 is provided on the back side of the planar antenna 10 so as to be swingable on an antenna support member by a horizontal central axis 18 orthogonal to the antenna pointing direction. In addition, a map 24 is drawn on the outer side surface of the fixing member 22 provided on the back side of the planar antenna 10 substantially orthogonal to the central axis 18, and a pointer 26 is provided on the antenna supporting member.
To provide. Then, an instruction line 28 connecting the point on the map 24 and the position indicated by the pointer 26 when the plane antenna 10 is set to a predetermined elevation angle at this point is drawn on the map 24.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an elevation angle indicating mechanism for an antenna, which allows the antenna to be easily set to a predetermined elevation angle at a point where the antenna is used.

[0002]

[Prior Art]

 In order to obtain high sensitivity, the antenna used for satellite communication and reception of satellite broadcasting must be directed to the satellite accurately. This type of conventional antenna is a relatively large fixed type antenna, and the pointing direction is adjusted only once during installation.

[0003]

[Problems to be solved by the device]

 In recent years, research and development of antennas used for satellite communication and reception of satellite broadcasts have made remarkable progress, and small and lightweight indoor antennas have also been provided. This small and lightweight antenna is likely to be frequently relocated and temporarily stored. For this reason, it is desirable to be able to accurately direct the pointing direction of the antenna to the satellite by a simple adjustment operation.

The present invention has been made in view of the above circumstances, and the antenna is set to a predetermined elevation angle at the point by adjusting the pointer so as to correspond to the point on the map. To provide an elevation angle indicating mechanism for the antenna.

[0005]

[Means for Solving the Problems]

 In order to achieve such an object, the elevation angle indicating mechanism of an antenna of the present invention is arranged so that the antenna is swingably mounted on the back side of the antenna support member by a horizontal central axis orthogonal to the antenna pointing direction. Draw a map on the outer surface of the member fixed to the back side of the antenna that is substantially orthogonal to the central axis, provide a pointer on the antenna support member, and adjust the pointer so that it corresponds to a certain point on the map. Then, the antenna is configured to be set to a predetermined elevation angle at the certain point.

Further, an instruction line connecting a point on the map and a position indicated by the pointer when the antenna is set to a predetermined elevation angle at this point may be drawn on the map.

[0007]

[Work]

 By making the pointer correspond to a point on the map where the antenna is used, the antenna can be automatically adjusted to a predetermined elevation angle at the point.

Furthermore, by drawing the indication line on the map, it becomes easy to associate the position indicated by the pointer with the point on the map, and a great degree of freedom can be obtained in drawing the map.

[0009]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 is a front view of an embodiment of an elevation angle indicating mechanism of an antenna of the present invention, FIG. 2 is a side view of a main part of FIG. 1, and FIG. 3 is a view for adjusting the elevation angle of FIG. 4 is a partially cutaway view showing the structure of the antenna support member of FIG. 4, and FIG. 4 is a sectional view taken along the line AA of FIG.

In FIG. 1 to FIG. 4, on the back side of the planar antenna 10, an antenna support member composed of three legs including two fixed legs 12 and 12 and one movable leg 14 is arranged. .. One end of the movable leg 14 is swingably disposed on the back side of the planar antenna 10 on a horizontal central axis 18 orthogonal to the antenna pointing direction. A fixed member 22 having a semicircular shape centering on the central axis 18 and having a gap 20 in which the movable leg 14 can swing is disposed on the back side of the planar antenna 10. The fixing member 22 has an outer side surface that is substantially perpendicular to the central axis 18, and a map (for example, a map of the Japanese archipelago) 24 is drawn on the outer side surface. In addition, a pointer 26 interlocking with the movable leg 14 is provided. Furthermore, a plurality of indicator lines 28 are drawn on the map 24 so as to connect a certain point on the map 24 and the position indicated by the pointer 26 when the plane antenna 10 is set at a predetermined elevation angle at this point. ..

Further, the movable structure of the movable leg 14 will be described. One end of a rod 30 is swingably disposed on a central shaft 18 arranged on the back side of the planar antenna 10, and a free end of the rod 30 has a length protruding from the fixing member 22 to some extent. A male screw is engraved. Then, the spacer 32 and the annular member 34 provided with the pointer 26 are inserted into the free end portion of the rod 30. The one end of the spacer 32 has an oval shape so that it cannot be rotated by being inserted into the gap 20 of the fixing member 22, and the step portion is pressed against the outer peripheral edge of the fixing member 22. Further, the annular member 34 is configured so as not to rotate relative to the spacer 32. Then, the male screw of the rod 30 is screwed with the female screw engraved on the tip surface of the adjusting rod 36. At the tip of the adjusting rod 36, there is provided a knob 38 having an outer periphery provided with a slip stopper or the like. Cushion members 40, 40, 40 are provided at the free ends of the adjusting rod 36 and the fixed legs 12, 12, respectively.

In such a configuration, the knob 38 is rotated to rotate the adjusting rod 36 to loosen the tightening of the spacer 32 with respect to the outer peripheral edge of the fixing member 22, and the pointer 26 is set to a point on the map 24 of the use place. The adjustment rod 36 is swung so as to coincide with the tied instruction line 28, and the adjustment rod 36 is rotated in the opposite direction. At that position, the spacer 32 is tightened by pressure contact with the outer peripheral edge of the fixing member 22, and the adjustment rod 36 is adjusted. To fix. Then, by mounting the planar antenna 10 on a horizontal plane by the fixed legs 12 and 12 and the movable leg 14, the elevation angle of the planar antenna 10 is set to a predetermined angle at the place of use.

Another embodiment of the present invention will be described with reference to FIG. FIG. 5 is a front view of another embodiment of the elevation angle indicating mechanism of the antenna of the present invention.

In FIG. 5, a U-shaped bracket 50 is arranged on the back side of the planar antenna 10. The bracket 50 is configured to be swingable with respect to the pole grip 52 by a horizontal central axis 54 that is orthogonal to the antenna directing direction while sandwiching the pole grip 52. Further, the bracket 50 is provided with an arc-shaped elongated hole 56 having a center axis 54 as a center, and a retaining screw 58 which penetrates the elongated hole 56 and is screwed into the pole grip 52 is provided to the pole grip 52. Fixed. Then, a map 60 is drawn on the outer surface of the bracket 50 that is substantially orthogonal to the central axis 54. Further, a pointer 62 is provided on the pole grip 52, and an instruction is made to connect a certain point on the map 60 to a position indicated by the pointer 62 when the plane antenna 10 is set at a predetermined elevation angle at this point. A line 64 is drawn on the map 60. The pole grip 52 is placed on the upper end of a vertical support column 66 and fixed to the support column 66 by fixing screws 68, 68.

In such a configuration, the pole grip 52 and the column 66 form an antenna support member. Then, the set screw 58 is loosened, the bracket 50 is swung with respect to the pole grip 52, the indicator line 64 at the place of use is aligned with the pointer 62, and the set screw 58 is tightened to fix the bracket 50. The pointing direction of the antenna 10 is set to a predetermined elevation angle.

The antenna support member is not limited to that of the above embodiment, and may have any structure as long as it can adjust the elevation angle of the planar antenna. Further, the map is not limited to the Japanese geographical map, as long as it is an area where the product is likely to be used, and it is sufficient if a point on the geographical map can be recognized, and the shape is appropriately deformed or inverted. It is easy to understand what is good. The pointer that matches the pointing line drawn on the map may be provided on the antenna support member, and may have any structure. Further, the position of the map may be directly indicated by the pointer by appropriately forming and arranging the map without drawing the indication line. Further, the present invention is not limited to indoor use, and it is needless to say that the present invention may be applied to a parabolic antenna other than the planar antenna.

[0017]

[Effect of the device]

 As described above, since the antenna elevation angle indicating mechanism of the present invention is configured, the following special effects are achieved.

In the elevation angle indicating mechanism of the antenna according to the first aspect, by making the pointer correspond to a point on the map, the antenna can be automatically adjusted to a predetermined elevation angle at the point, which is technically impossible. Even a person without knowledge can easily and reliably direct the pointing direction of the antenna to a predetermined satellite.

Furthermore, in the elevation angle indicating mechanism of the antenna according to the second aspect, by drawing the indicating line, the point on the map and the position indicated by the pointer can be made to correspond to each other quite freely. The degree of freedom in terms of shape, size and drawing position is great, and design and design are easy.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of an elevation angle indicating mechanism of an antenna of the present invention.

FIG. 2 is a side view of a main part of FIG.

3 is a partially cutaway view showing the structure of an antenna support member for adjusting the elevation angle of FIG. 1. FIG.

4 is a sectional view taken along the line AA of FIG.

FIG. 5 is a front view of another embodiment of the elevation angle indicating mechanism of the antenna of the present invention.

[Explanation of symbols]

 10 Planar antenna 12 Fixed leg 14 Movable leg 18,54 Center axis 22 Fixing member 24,60 Map 26,62 Pointer 28,64 Indicator line 50 Bracket 52 Pole grip 66 Strut

Claims (2)

[Scope of utility model registration request] 1. An antenna is disposed on the back side of the antenna supporting member so as to be swingable with respect to an antenna supporting member by a horizontal center axis orthogonal to the antenna pointing direction, and the central axis of a member fixed to the back side of the antenna is used. By drawing a map on the substantially orthogonal outer surface, providing a pointer on the antenna support member, and adjusting so that the pointer corresponds to a certain point on the map,
An elevation angle indicating mechanism for an antenna, wherein the antenna is configured to be set to a predetermined elevation angle at the certain point. 2. The elevation angle indicating mechanism for an antenna according to claim 1, wherein an indication line connecting a point on the map and a position indicated by the pointer when the antenna is set to a predetermined elevation angle at this point, An elevation angle indicating mechanism for an antenna, which is drawn on the map.