JP3179194U - Directional antenna elevation setting attachment device - Google Patents

Abstract

An elevation angle setting attachment device for a directional antenna that enables two elevations of two multi-element antennas or two planar antennas to be set together toward a radio wave emission source at a high place, and then allows the elevation angles to be fixed together. provide.
A laterally staying stylus 3 is attached to a mounting plate 2 which can be fixed to a substantially vertical column 1 after horizontal rotation adjustment so as to be fixed after rotation about an axis. The directional antennas 4 are provided in the same horizontal direction so as to be orthogonal to both sides of the stay 3, and the stay 3 is temporarily pivotally supported by the attachment portions with weak attachment force. Rotate horizontally around 1. Further, while the antenna 4 is positioned above or below the radio wave emission source at a high place, the stay 3 is rotated together with the antenna 4 about the axis, and the elevation angles of the directional antennas 4 are collectively set. By fixing each attachment portion in the state, the set elevation angles can be fixed together.
[Selection] Figure 1

Description

  The present invention includes two multi-element antennas or two planar antennas for high-frequency radio emission sources, such as relay radio transmission antennas at Yamagami satellite relay stations and various broadcast radio emission antennas at radio emission towers such as Tokyo Skytree. It is related with the elevation angle setting attachment apparatus of a directional antenna suitable when installing an antenna with this set elevation angle fixed, after setting an elevation angle precisely.

  In the weak electric field area where the incoming radio waves from the high-frequency radio wave emission sources are weak, in order to receive this incoming radio wave as much as possible, four elevations of four multi-element directional antennas connected in a horizontal and vertical stack are collected. For setting, for example, an elevation angle setting attachment device for a multi-element directional antenna proposed in Japanese Patent Application Laid-Open No. 2005-260637 (Patent Document 1) previously proposed by the present applicant is well known.

  In this patent document, an upper stay is attached to a pivoting plate attached to an upper outer peripheral surface of a support in a horizontal direction, and one antenna is measured above and below a left and right long vertical stay provided on both sides. While the four sticks are installed, a lower stay with left and right bent parts is attached horizontally to the mounting plate attached to the middle part of the column, and the left and right sides are rolled to the outer peripheral surface of each vertical stay. This is an elevation angle setting attachment device for a multi-element directional antenna.

  In the conventional example of the above-mentioned Patent Document 1, the left and right vertical stays are vertically fixed together with the upper and lower horizontal stays in the temporarily fixed state in which the respective attachment parts are loosened. The four multi-element directional antennas are combined and directed upward or downward from a radio wave emission source at a high place.

  Thereafter, the lower stay is rotated about the axis to displace the left and right bent parts back and forth, and the lower part of the left and right longitudinal stays are turned together with the four antennas around the upper stay in the direction of the radio wave emission source. As a result, after the four antennas are collectively set at an elevation angle, the loosened attachment portions can be fixed and the four multi-element directional antennas can be installed toward a radio wave emission source at a high place.

  However, this conventional example is very convenient for setting the elevation angle of four multi-element directional antennas connected horizontally and vertically in a weak electric field region. When the angle of elevation is set by attaching two connected directional antennas to the support column, if the configuration of Patent Document 1 is used as it is, the overall configuration is too large, and it is extremely heavy in terms of weight and space. There is an essential and big problem that it is disadvantageous.

  That is, in order to attach two unidirectional multi-element antennas or two unidirectional planar antennas to a support and set the elevation angle, the lower left and right plates in Patent Document 1 are used, and the left and right long dimensions are used. The vertical sticks and the total of 6 U-shaped bolts, etc., are unnecessary and useless, and have a fundamental and serious problem that they are extremely uneconomical and violate national policies.

JP 2005260637 A

  In this device, the elevation setting setting configuration of four directional antennas in Patent Document 1 is greatly changed to the elevation setting setting configuration of two unidirectional multi-element antennas or two unidirectional planar antennas. It aims at simplifying and eliminating the waste of a use member.

  The purpose of the present invention is to install two unidirectional multi-element antennas or two unidirectional planar antennas on a substantially vertical column top with the elevation angle set to a radio wave emission source at a high place. Attach a mounting plate to the upper outer peripheral surface of the bracket so that it can be fixed after horizontal rotation. This was achieved by providing the antennas orthogonally and in the same direction.

  In this device, the mounting force of each mounting part in the above means is slightly weakened, and the horizontal stay is rotated in the horizontal direction around the support column together with each antenna and the mounting plate in a temporarily pivoted state. Then, after turning the two antennas together in the direction of the radio wave emission source at a high location, the above-mentioned antennas are turned toward the radio wave emission source at a high location by rotating the stay with the two antennas about the axis. There is an excellent effect that two antennas can be easily set as an elevation angle, and then the set elevation angles of the respective antennas can be easily fixed together by fixing each attachment portion in the temporary pivot state. .

  That is, according to the present invention, the four antenna mounting configurations in Patent Document 1 can be greatly simplified to the mounting configuration of two unidirectional multi-element antennas or two unidirectional planar antennas. In addition, the weight, space, and price are remarkably advantageous, and the antenna horizontal orientation setting and the elevation angle setting work are greatly facilitated.

  According to the invention of claim 2 in the present invention, in addition to the above-mentioned many effects, a unidirectional planar antenna that is flat in the direction of the incoming radio wave is adopted as the directional antenna. The degree of freedom of the installation location has improved compared to the element directional antenna, and the excellent effect of reducing the weight increase and the gain decrease due to snowfall can be added.

The perspective view which shows an example of embodiment of this invention The perspective view which made the state different from FIG. A perspective view showing an example of a mounting plate used in the present invention The perspective view which shows an example of other embodiment of this invention The perspective view which made the state different from FIG.

  The embodiment of the present invention stands upright from the rooftop of a building or the outer wall of a building toward a radio wave emission source at a high place, such as a relay radio wave transmission antenna of a Yamagami satellite station or a terrestrial digital broadcasting radio wave emission antenna above the Tokyo Sky Tree. When the two unidirectional multi-element antennas 4 are installed on the support 1 as shown in FIG. 1 so that the elevation angle can be set as shown in FIG. 2, in the present invention, the upper outer peripheral surface of the support 1 as shown in FIG. The upper and lower U-shaped bolts U straddling the support column 1 are projected to the front side through the holes of the mounting plate 2 while the rear surface of the mounting plate 2 is applied, and the tightening nut N screwed into the protruding portion The mounting plate 2 is attached to the support column 1 so as to be fixed with respect to the support column 1 by the tightening force after being adjusted in the horizontal direction.

  Next, the outer peripheral surface of the laterally oriented stay 3 made of a round pipe is inserted between the front surface of the mounting plate 2 and the inner surfaces of the left and right U-shaped bolts U as shown in FIG. By tightening the tightening nut N, the laterally oriented stay 3 is attached horizontally to the mounting plate 2 so that it can be fixed around the axis around the center of the mounting plate 2 after being adjusted for rotation.

  Further, as shown in FIG. 1, the anti-rotation recesses 3A are respectively provided on the upper surfaces near the left and right end portions of the stay 3, and the currently used general attachment portions 4A for the unidirectional multi-element antenna 4 are provided in the recesses 3A. As shown in FIG. 1, a lower portion 5A of a tapered male screw 5 with a butterfly-shaped projecting piece inserted from above into a vertical hole provided in this portion is screwed into a lower surface hole of the stay 3, and this lower portion 5A of the male screw is inserted. Is projected from the lower surface of the stay 3 as shown in the above figures, and the antenna mounting portion 4A is screwed into the stay recess 3A so that the antenna 4 is fixed to the right and left ends of the stay 3 at right angles with the mounting portion 4A. It was able to project horizontally.

  In each of the drawings, a portion indicated by reference numeral 6 is a wing nut for assembly of the multi-element antenna 4, and a portion indicated by reference numeral C is a waterproof cap that covers the opening ends of the stay 3 and the column 1.

In addition to the projecting means,
However, in order to horizontally project the respective antennas 4 on both sides of the laterally facing stay 3, the antenna mounting tool for mounting the multi-element antenna horizontally on a general working pole (not shown because it may be well known). ) Is attached to both sides of the laterally facing stay 3 and the antenna element is leveled and the mounting portion is clamped and fixed to the mounting fixture, so that the antenna is horizontally projected in the orthogonal direction by the mounting portion 4A on both sides of the laterally facing stay 3. Can be set.

  In addition, the left and right ends of the stay 3 may be flattened into a plate shape, and a plurality of longitudinal portions of the mounting portion 4A may be screwed to each plate-like portion. The stay 3 and the antenna attaching portion 4A may be fixedly attached to each concave surface of the attachment member, and the attachment plate 2, U-shaped bolt and nut as shown in FIG. The antenna mounting portion 4A can be placed in a horizontal projection so as to be orthogonal to each other.

Next, specific examples of the material and dimensions of each member in the present invention will be listed.
The strut 1 is made of a tough and lightweight straight pipe material such as metal having a diameter of about 35 mm. In addition to the roof horse installation type, a strut standing on the building outer wall or veranda can be used.
The mounting plate 2 was made of a tough plate material such as metal having a thickness of about 2 to 5 mm.

The sideways stick 3 was made of a tough tube material such as metal having a diameter of about 30 mm, or a reinforced plastic tube material that was strong against direct sunlight, such as rain gutter material, and had a length of about 50 to 140 cm. Use properly depending on the antenna installation situation and electric field strength.
As the unidirectional multi-element antenna 4, a currently used unidirectional multi-element antenna having a total length of about 1.3 meters and a weight of about 1.5 kg is used in a horizontal stack connection.

  The U-bolt mounting interval with respect to the mounting plate 2 was about 100 mm between the two upper and lower columns for the support and about 80 mm between the two left and right for the sideways stick. As the facing interval and the bolt diameter between the U-shaped bolts, those according to the outer diameter of the support column 1 and the stay were appropriately selected and used.

  Since the elevation angle setting attachment device for a directional antenna according to the present invention has the above-described configuration, in order to use it, first, except for the attachment portion of the antenna attachment portion 4A itself, in each of the attachment portions. In a temporarily pivoted state of each attachment portion with the tightening nut N slightly loosened, the laterally oriented stay 3 is rotated horizontally together with the mounting plate 2 and the antenna 4 around the support column 1 so that two unidirectional The element antenna 4 is directed above or below a high-frequency radio wave emission source (not shown).

  Thereafter, or before that, by rotating the horizontal stay 3 together with the antennas about the axis with respect to the mounting plate 2, the antennas 4 are rotated obliquely upward as shown in FIG. After setting the two to the radio wave emission source accurately and setting the elevation angle precisely, the loosened tightening nuts N in each of the temporary pivotally mounted portions are firmly tightened, so that the respective fixed portions are immovable. The set elevation angle of each directional antenna 4 can be fixed together.

  As a specific example of the above-described elevation angle setting procedure, first, a well-known coaxial cable (not shown) is used to output a horizontal stack of incoming radio waves in the UHF band such as terrestrial digital radio waves received by two multi-element antennas 4 during the elevation angle setting. To the antenna input terminal of the television receiver, and track and maintain the screen so that the screen image is in the best condition. While tracking and maintaining the indicated value, each of the left and right antennas 4 is rotated vertically, horizontally, and diagonally so as to be accurately directed to a radio wave emission source at a high place by the procedure described above, thereby Two elevation angles of the directional multi-element antenna 4 can be accurately set as shown in FIG.

  Next, in a state where the set elevation angle of each antenna 4 is best held together, while maintaining the above-mentioned television projection best or securing the fluctuation display value of the antenna input instruction screen, this time, Each mounting portion can be fixed by firmly tightening the loosened tightening nuts N, and the set elevation angles of the two multi-element antennas 4 accurately directed to the radio wave emission source at a high place are shown in the above drawings. As shown above, the antenna 4 can receive the incoming waves of horizontally polarized waves in the UHF band, for example, in a stable manner over a long period of time in the best condition of the TV screen as described above. I was able to watch it.

  In the above embodiment, an example in which a unidirectional multi-element antenna is used for each of the two directional antennas 4 has been described. However, the present invention has already been connected in a vertical stack as shown in FIG. Of course, this is also applied to the unidirectional planar antenna 4, but in this case, it is sandwiched between the surface of the mounting seat 7 attached to the center of the back surface of the planar antenna 4 with a set screw n as shown in FIG. 4, one side of each side of the laterally facing stay 3 is inserted between the flange 8 </ b> A of the plate 8 as shown in FIG. 4, and a plurality of set screws n are used to attach the vicinity of both ends of each stay 3 with the clamping plate 8. The stay 3 and the sandwiching plate 8 are screwed together with a male screw 5 with a butterfly projection as shown in FIG.

  However, in order to fix the planar antenna 4 one by one in the vicinity of both sides of the laterally facing stay 3, in addition to the above-mentioned means, the mounting seat 7 or the planar antenna 4 is directly mounted near the left and right ends of the laterally facing stay 3. It may be screwed to the center mounting portion of the back surface with a plurality of long screws, and the left and right end portions of the stay 3 are flattened to form a plate shape. The antenna 4 may be screwed onto the mounting portion.

  In this way, even when two unidirectional planar antennas 4 connected in a vertical stack are further used in a horizontal stack connection, in order to use this, except for the attachment portion of the planar antenna 4 itself, In the temporarily pivoted state of each attachment portion with each attachment portion loosened, the laterally facing stay 3 is rotated together with the antenna through the mounting plate 2 in the horizontal direction around the support column 1 so that the two directional planar antennas 4 Two receiving surfaces are gathered and faced above or below a high-frequency radio wave emission source.

  Thereafter or before that, by rotating the stay 3 with respect to the mounting plate 2 together with each of the two planar antennas 4 about the axis as shown in FIG. 5, the receiving surface of the directional planar antenna 4 becomes the same as FIG. The two surfaces can be rotated together obliquely upward, and the reception surface of the planar antenna 4 is collectively set to an elevation angle toward a radio wave emission source at a high place, and then each of the attachment portions in the provisional pivot state is described above. By firmly fixing as described above, two set elevation angles of the directional planar antenna 4 can be fixed together.

  However, the directional planar antenna 4 is used for a current general weak / medium electric field area having a vertical, horizontal, and thickness of about 600, 270, and 70 mm, a weight of about 2 kg, and an operation gain of about 8 to 10 dB. A commercially available directional planar antenna with a twin delta twin loop vertical stack connected by Nippon Antenna Co., Ltd. was used in a horizontal stack connection.

  In addition, an annular groove (not shown) is formed at two locations on the outer peripheral surface of the mounting portion of the laterally facing stay 3 with respect to the mounting plate 2 and at two locations on the upper outer peripheral surface of the column 1 according to the position of the U-bolt. For example, it is possible to position the U-bolt with this annular groove, and it is possible to stably maintain the provisional pivot state of each attachment part slightly loosened from each attachment part. It becomes easy.

  If known directional antennas for receiving vertically polarized waves are used for the two types of unidirectional antennas 4, it is possible to naturally receive the vertically arriving radio waves in the UHF band and VHF band.

DESCRIPTION OF SYMBOLS 1 ... Almost vertical support | pillar 2 ... Mounting plate 3 ... Sideward stick 3A ... Idling stop recessed part 4 ... Unidirectional antenna 4A ... Antenna mounting part 5 ... Male screw 5A with butterfly-shaped projecting piece ... Lower part 6 ... Wing nut 7 ... Mounting seat 8 ... Clamping plate 8A ... Hook recess U of clamping plate U ... U bolt N ... Clamping nut n ... Set screw C ... Waterproof cap

Claims (2)

  Attach the mounting plate to the upper part of the vertical pillar so that it can be fixed after horizontal rotation, and fix the laterally stick to this mounting plate so that it can be fixed around the axis around the center. The unidirectional multi-element antennas are projected one by one in the same horizontal direction so as to be orthogonal to each other in the vicinity of the section, thereby constituting an antenna post mounting device and temporary mounting of each mounting section loosened. In the pivoted state, the horizontal stays are rotated together with the mounting plate and antenna around the support column, and the antennas are turned together in the direction of the radio wave emission source at a high place, while the horizontal stays are rotated together with the antennas about the axis. By moving the two antennas toward the radio wave emission source at a high place, the elevation angle is set together, and then each mounting part in the temporary pivot state is fixed, so that each antenna has been set. It is possible to fix two elevation angles together Elevation settings mounting device of directional antennas.   Attach the mounting plate to an almost vertical support so that it can be fixed after horizontal rotation. Attach the sidewise stick to this mounting plate so that it can be fixed after rotating around its axis, and make it perpendicular to the left and right ends of this stay. By providing unidirectional planar antennas one by one in the same direction, an antenna post mounting device is constructed. The mounting surface and the antenna are rotated around the support column, and the receiving surface of the planar antenna is directed toward the radio wave emission source, while the horizontal stay is rotated around the axis along with the planar antenna so that the antenna receiving surface is raised. After setting the elevation angle with the two surfaces facing the radio wave emission source together, it is possible to fix the set elevation angle of each antenna together by fixing each attachment part in the temporary pivot state. Directional antenna Corner set mounting device.

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