JPH1013119A - Tv reception antenna - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely execute attachment to the external wall, etc., of a building and to attain sufficient resistance against the long term usage without being easily affected by means of wind pressure and snowbound by providing a pair of shape-holding sheets on both surfaces of an antenna main body, so as to permit the antenna main body to be held between them. SOLUTION: The planar antenna main body 1 where an antenna element is arranged in an antenna sheet is provided. The pair of shape-holding sheets 29 and 30 are provided on the both surfaces of the antenna main body 1, to hold the antenna main body 1 between them. Therefore, the pair of shape- holding sheets 29 and 30 hold the antenna main body 1 between them, so that the antenna main body 1 is firmly held in shape by the pair of the shape-holding sheets 29 and 30. Moreover, the antenna main body 1 is effectively protected by the pair of shape-holding sheets 29, and 30 and the damage to the antenna main body 1 is surely prevented by them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TV receiving antenna provided with a planar antenna body having an antenna element provided on an antenna sheet.

[0002]

2. Description of the Related Art An antenna element is provided on an antenna sheet so as not to impair the appearance of a building or to cause damage or radio interference due to external factors such as wind and rain. There has been proposed a TV receiving antenna in which a planar antenna main body is configured, and the planar antenna main body for TV reception is integrated with a building material such as a roof material or an outer wall material.

In this type of conventional TV receiving antenna, there is an antenna provided integrally with a building material such as a roof material or an outer wall material by, for example, attaching a planar antenna body to a lower surface of a roof material (eg, for example). JP-A-7-106834).

[0004]

However, in the conventional case,
The planar antenna body itself before being attached to building materials such as roofing materials has high flexibility and is very flexible, so the antenna body itself can be constructed separately from building materials such as roofing materials and outer walls. It was difficult to attach it to an arbitrary place such as an outer wall of the vehicle.
Also, since the antenna body is very flexible and poor in shape retention,
When the antenna body is directly mounted on the outer wall of a building or the like, there is a problem that the antenna body is damaged by short-term use under the influence of wind pressure and snow.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a TV that can be easily and securely attached to an outer wall of a building, is less susceptible to wind pressure and snow, and can sufficiently withstand long-term use. It is intended to provide a receiving antenna.

[0006]

The technical means of the present invention for solving this technical problem is a TV receiving antenna having a planar antenna body 1 in which an antenna element 3 is provided on an antenna sheet 2. A pair of shape retaining sheets 29,
30 is provided on both sides of the antenna main body 1 so as to sandwich the antenna main body 1.

Accordingly, since the antenna main body 1 is sandwiched between the pair of shape retaining sheets 29, 30, the pair of shape retaining sheets 29, 30 is provided.
The shape of the antenna main body 1 can be firmly maintained by 30. Further, the antenna main body 1 can be effectively protected by the pair of shape retaining sheets 29, 30.
0 reliably prevents the antenna main body 1 from being damaged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. In the drawing, reference numeral 1 denotes a planar antenna body, two antenna sheets 2 made of a plastic film, and a TV arranged between the antenna sheets 2.
And a receiving antenna element 3. Antenna element 3
Is applied to the surface of one antenna sheet 2 by applying a conductive paint or attaching a conductor such as a conductive metal foil,
The other antenna sheet 2 is superposed on the one antenna sheet 2 so as to sandwich the antenna element 3 in a sandwich shape, and the antenna sheets 2 are bonded to each other with an adhesive or the like.

The antenna element 3 has a pair of sides 5, another side 6, and a pair of feeding sides 7 projecting inward from one end of the pair of sides 5. A pair of feed points 8 are provided at opposite ends of the pair of feed sides 7. Note that a bent portion 11 is interposed between a pair of sides 5 of the antenna element 3. The bent portion 11 has characteristics similar to a linear side portion obtained by extending the bent portion 11 linearly, and can be replaced with a long linear side portion of the antenna element 3. Therefore, by interposing the bent portion 11 between the pair of sides 5, the pair of sides 5 of the antenna element 3 facing each other can be formed short, and the size of the entire antenna element 3 can be reduced. I have.

At the feed point 8 of the antenna element 3,
As shown in FIG. 2, a power supply box 13 made of plastic or the like is provided. The power supply box 13 is provided between a flange 14 of the power supply box 13 and the lid member 15.
By sandwiching the pair of antenna sheets 2, the antenna elements 3 are attached to the feeding points 8 of the antenna element 3 so as to protrude.

An insertion hole 17 is provided at the bottom of the power supply box 13. A screw shaft 18 is inserted through the insertion hole 17, and nuts 19 and 20 screwed to the screw shaft 18 allow the screw shaft 1 to be inserted.
8 is fastened and fixed to the bottom of the power supply box 13. The screw shaft 18 is connected to the connector 23 of the coaxial cable 22.
Is detachably attached, the pair of feeding points 8 of the antenna element 3 are connected to the transformer 25 in the feeding box 13.
And a coaxial cable 2 through an electric wire fitted inside the screw shaft 18.
2 are connected. The coaxial cable 22 is for connecting the antenna element 3 to the receiver.

The antenna main body 1 is composed of the antenna element 3, the two antenna sheets 2, the power supply box 13, and the like. The antenna sheet 2 of the antenna body 1 has great flexibility and flexibility, and the antenna body 1 also has great flexibility and flexibility. Reference numerals 29 and 30 denote a pair of shape-preserving sheets, which are formed of hard plastic or the like into a thin plate shape corresponding to the antenna body 1. The pair of shape retaining sheets 29 and 30 are provided on both surfaces of the antenna main body 1 by sticking or the like so as to sandwich the antenna main body 1.

An opening 31 corresponding to the power supply box 13 is provided in one shape retaining sheet 29, and a concave portion 32 corresponding to the lid member 15 is provided in the other shape retaining sheet 30. The box 13 is inserted into the box 13, and one shape-retaining sheet 29 is inserted into the feed box 1 of the antenna body 2.
3 on one side, and adheres the shape-retaining sheet 29 to the antenna element 3 with an adhesive or the like.
Are fixed to the antenna body 1 by polymerization. Also, the other shape-retaining sheet 30 is arranged on the surface of the antenna body 1 opposite to the power supply box 13 so that the cover member 15 is fitted into the concave portion 32, and the shape-retaining sheet 30 is bonded to the antenna body 1. The shape-retaining sheet 30 is fixed to the antenna main body 1 by bonding with a material or the like. Thereby, the pair of shape retaining sheets 29 and 30 sandwich the antenna body 1 so that
Provided on both sides of the antenna body 1,
0 firmly holds the antenna main body 1.

[0014]

According to the present invention, a pair of shape retaining sheets 2 are provided.
Since the antenna bodies 9 and 30 are provided on both sides of the antenna main body 1 so as to sandwich the antenna main body 1 between the pair of shape retaining sheets 29 and 30, the antenna main body 1 is large in flexibility and rich in flexibility. Even if the antenna body 1 can be firmly maintained by the pair of shape-retaining sheets 29 and 30, the antenna body 1 can be arbitrarily formed on the outer wall of a building without incorporating the antenna body 1 into a building material such as a roof material or an outer wall. Can be easily attached to In addition, the antenna body 1 includes a pair of shape-retaining sheets 2.
The antenna body 1 is held between the antennas 9 and 30.
Even if it is directly attached to the outer wall of the building, it will not be damaged by short-term use due to the influence of wind pressure and snow, it is less susceptible to wind pressure and snow, and it can fully withstand long-term use be able to.

[Brief description of the drawings]

FIG. 1 is an exploded side sectional view showing an embodiment of the present invention.

FIG. 2 is a side sectional view of the power supply box portion.

FIG. 3 is a front view of the antenna main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna main body 2 Antenna sheet 3 Antenna element 29 Shape keeping sheet 30 Shape keeping sheet

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kensuke Ishida 2-47 Shishitsu Higashi, Naniwa-ku, Osaka-shi, Osaka Kubota Corporation

Claims (1)

[Claims] 1. A TV receiving antenna comprising a planar antenna body (1) in which an antenna element (3) is provided on an antenna sheet (2), wherein a pair of shape-retaining sheets (29) and (30) is A TV receiving antenna provided on both sides of an antenna body (1) so as to sandwich (1).