JPH056917U - Flat antenna device for satellite broadcasting reception - Google Patents

Abstract

(57) [Abstract] [Purpose] Concerning the planar antenna device for satellite broadcasting reception, the structure is simple and economical, the handling is simple,
We will try to prevent the invasion of the living space after installation and reduce the effect of wind pressure. A foldable flexure / extension body 3 is provided on a back surface of a planar antenna 1 having a fan-shaped beam directivity in an elevation direction.
An azimuth angle adjusting mechanism 2 including a combination of A and 3B and opening degree fixing tools 13A and 13B is provided. [Effect] The planar antenna 1 has the directivity, and the azimuth angle adjusting mechanism 2 includes the bending and extending bodies 3A and 3B and the opening degree fixing tool 1.
Since it is mainly composed of 3A and 13B, the intended purpose can be achieved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flat antenna device for receiving satellite broadcasting (BS) from a broadcasting satellite.

[0002]

[Prior Art]

 In general, a plane antenna for BS is equipped with a back metal fitting in the center of the back surface thereof, and when mounting such a plane antenna, it was mounted on the back metal fitting, the window frame, handrail, wall surface, etc. of the building. The support fitting is connected.

Most of the plane antennas for BS have directivity in the direction orthogonal to the antenna surface, and therefore when the antenna is set at a predetermined elevation angle, the antenna surface is inclined with respect to the ground.

[0004]

[Problems to be solved by the device]

 In the case of the above-mentioned BS planar antenna, expensive supporting metal fittings are indispensable in addition to the rear metal fittings, and the metal fittings have to be assembled and connected to each other, resulting in cost increase of the product and difficulty in handling. Accompany. In addition, in order to incline the antenna surface, the planar antenna must be mounted in a take-out type, which easily causes wind pressure, which causes a problem that a large force is applied to the antenna mounting portion. In particular, when using a south-facing area of a building (eg a veranda) as an antenna installation site, the antenna equipment that occupies a useful part of the building invades the living space and interferes with life. ..

In view of such technical problems, the present invention aims at simplicity of construction and economic efficiency, convenience of handling, prevention of invasion of living space after attachment, and mitigation of influence of wind pressure. It is intended to provide a flat antenna device for satellite broadcasting reception which can be performed.

[0006]

[Means for Solving the Problems]

 In order to achieve the intended purpose, the planar antenna device for receiving satellite broadcasting according to the present invention is such that the planar antenna has a fan-shaped beam-like directivity with respect to the elevation angle direction. The azimuth angle adjustment mechanism provided on the back side extends across the members of the folding and stretching body to fix the left and right folding angles of the folding and stretching body that opens and closes left and right via the hinges on both sides. It is characterized in that it consists of a combination with an opening degree fixing device that can be attached.

[0007]

[Action]

 The flat antenna device for satellite broadcasting reception according to the present invention is mounted by fixing the bending body on the back surface of the flat antenna to, for example, a part of a building. Since this planar antenna has a fan-shaped beam-like directivity with respect to the elevation angle direction, adjustment of this direction is unnecessary. The azimuth angle of the planar antenna is adjusted by opening and closing the left and right sides of the flexure / extension body having the hinge part, and thus, when the plane antenna is set to a predetermined azimuth angle, the flexion / extension device is set through the opening fixing tool. Fix the left-right opening angle of the body.

[0008]

【Example】

 A planar antenna device for receiving satellite broadcasting according to the present invention will be described based on an illustrated embodiment.

The plane antenna device illustrated in FIGS. 1 to 3 includes a plane antenna 1 and an azimuth angle adjusting mechanism 2 provided on the back surface of the plane antenna 1.

The plane antenna 1 is beam-tilted so that the directivity thereof is 30 ° to 40 ° upward with respect to the aperture surface, and has a wide 3 dB width in the elevation direction. , 3 dB narrower in the azimuth direction is set. Thus, the planar antenna 1 does not require adjustment for the elevation angle.

The azimuth angle adjusting mechanism 2 is composed of a combination of two sets of bending / extending bodies 3A and 3B having a folding type bending / extending structure and a plurality of opening fixing tools 13A and 13B having different lengths.

In the case of the above-mentioned bending / extending bodies 3A, 3B, the long members 4, 5, 6 for constituting them have a large number of setting holes 7 formed at intervals in the length direction, respectively. ing. Each of the bending / extending bodies 3A, 3B is configured such that the connecting ends of these members 4, 5, 6 are pivotally attached by a shaft pin 8 so as to be able to bend and extend. 3 hinge portions 9 and 10. The bending and extending bodies 3A and 3B having such a configuration are vertically and horizontally applied to the back surface of the planar antenna 1, and one member 4 thereof is fixed to the back surface of the antenna by a known or well-known means. Thus, the bending and stretching bodies 3A and 3B are attached to the back surface of the planar antenna 1.

In addition, a pair of fittings 11 and 12 that can be tightened via, for example, bolts and nuts are provided on the back surface of each of the bending and stretching bodies 3A and 3B. Of these, one of the fittings 11 is It is fixed to one member 6 of each of the bending / extending bodies 3A and 3B through known or known means.

Each of the opening degree fixing tools 13 A and 13 B described above has a pin hole 15 at both ends thereof, and a bolt type pin 16 and a nut type fastening tool 17 are provided therein.

In FIG. 1 to FIG. 3, 21 indicates a fence of a veranda, 22 indicates upper and lower horizontal rods (handrails and lower frames) of the fence 21, and 23 indicates vertical lattices of the fence 21.

The planar antenna device illustrated in FIGS. 1 to 3 is attached to the fence 21 of the veranda as follows. First, one fixture 11 is applied from the outside of the veranda across the vertical lattices 23 of the fence 21, and then the other fixture 12 is superposed on the one fixture 11 from the inside of the balcony, and then these fixtures 11 are placed. , 12 are tightly connected to each other by bolts and nuts to sandwich the vertical lattice 23, and thus the planar antenna 1 is held on the outer surface of the fence 21.

As described above, since the planar antenna 1 in the attached state does not require adjustment in the elevation direction, the azimuth of the antenna is adjusted via the bending and extending bodies 3A and 3B as shown in FIG. At this time, the left and right sides of each of the bending and stretching bodies 3A and 3B having the hinge portions 9 and 10 are opened and closed to set the opening angle α between the members 4 and 5 and the opening angle β between the members 5 and 6, respectively. When the adjustment is made and the predetermined azimuth of the planar antenna 1 is obtained, the opening fixing tool 13A is placed between the members 4 and 5, and the opening fixing tool 13B is placed between the members 5 and 6, respectively. The pin 16 is inserted into the set hole 7 and the pin hole 15 which are aligned with each other, and the pin 17 is tightened with the fastener 17. Thus, the azimuth angle of the planar antenna 1 is fixed.

In the case of the planar antenna device according to the present invention, the following embodiments can also be adopted. Regarding the number of each of the bending and stretching bodies 3A and 3B, this can be increased or decreased as compared with the illustrated example. However, when there is only one flexor, it is enlarged and attached to the center of the back surface of the planar antenna 1. The number of main members 4, 5, and 6 of the bending / stretching body (single body) can be increased or decreased as compared with the illustrated example. However, when there are two members that are pivotally attached to each other (eg, when the members 4 and 6), the end of one member 4 is pivotally attached to the back surface of the planar antenna 1 and the end of the other member 6 is attached. The attachment 11 is pivotally attached.

The relative fixing means of each member 4, 5 and 6 and each opening fixing tool 13A, 13B is replaced with a pin 16 and a fastening tool 17, and a hook which can be engaged with each other is provided, or Any one can be adopted, such as combining a separate clamp tool. Depending on the case, a clamp tool may be provided at the end of each opening fixing tool 13A, 13B.

The fixtures 11 and 12 can also be changed to vices (vices), tightening bands (made of metal or synthetic resin), screw-fastened saddles, and the like. When the planar antenna 1 is attached to a horizontal structure such as the horizontal rod 22 instead of the vertical structure such as the vertical grating 23, a mounting tool corresponding to this may be adopted.

[0021]

【The invention's effect】

 The plane antenna device for satellite broadcasting reception according to the present invention has the following effects.

Since it is not necessary to adjust the plane antenna in the elevation direction, the adjustment mechanism for that can be omitted, and further, a separate support fitting is not required, and the bending / stretching body provided on the back surface of the plane antenna can be omitted. Since it is only necessary to attach it to a part of the building with the fixture, it is possible to ensure simplicity of construction and economy.

Since it is only necessary to adjust the azimuth angle of the planar antenna, the handling at the time of antenna mounting adjustment becomes easy, and the foldable bending body having hinge parts on both sides allows the antenna azimuth angle to be adjusted. Can be adjusted accurately. Of course, the antenna azimuth angle adjusted in this way can be stably fixed by the opening fixing tool, and subsequent readjustment can be easily performed by detaching the opening fixing tool.

The flat antenna can be closely mounted close to the building by the amount that elevation angle adjustment is unnecessary, and the amount of wind pressure load that is associated with it can be reduced, thereby increasing the structural durability.

When an existing structure such as a fence of a veranda is used as the antenna support, a flat antenna can be attached to the outer surface of the fence, so that the device including the flat antenna does not impair the living space. ..

[Brief description of drawings]

FIG. 1 is a rear view showing an embodiment of a planar antenna device according to the present invention in a mounted state.

FIG. 2 is a side view schematically showing a state before the adjustment of the planar antenna in the one embodiment.

FIG. 3 is a plan view schematically showing a state after the adjustment of the planar antenna in the one embodiment.

[Explanation of symbols]

 1 Planar Antenna 2 Azimuth Adjustment Mechanism 3A Stretchable Body 3B Stretchable Body 4 Stretchable Body Member 5 Stretchable Body Member 6 Stretchable Body Member 7 Set Holes for Each Member 8 Stretchable Body Pins 9 Stretchable Body Hinge Part 10 Hinge part of a stretchable body 11 Fixture for antenna 12 Fixture for antenna 13A Opening fixing tool 13B Opening fixing tool 15 Pin hole of opening fixing tool 16 Pin of opening fixing tool 17 Tightening opening fixing tool Tool α Opening angle β Opening angle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Ryuji Matsui 2-6-1, Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd.

Claims (1)

[Claims for utility model registration] [Claim 1] The planar antenna has a fan-shaped directivity with respect to the elevation direction, and the azimuth angle adjusting mechanism provided on the back surface of the planar antenna is provided on both sides. Satellite broadcasting consisting of a foldable bending / extending body that opens and closes left and right via a hinge, and an opening degree fixing device that is mounted between the members of the bending / extending body to fix the left / right opening angle of the bending / extending body Planar antenna device for reception.