JP2004088367A - Parabolic antenna support - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a parabolic antenna support enabling the parabolic antenna to receive radio waves transmitted from a horizontal direction by using an offset parabolic antenna which is conventionally used. <P>SOLUTION: The support is provided with a base 61, a fixing plate 60, and holding plates 3 for a pole 50 which is mounted on the fixing plate 61 so as to be able to be pressed by fastening operations of bolts 4a. The lower portion of the plate 60 is fitted on a fitting point provided on the lower portion of the base 61 so that the base 61 can move freely, long grooves 64 being long in the moving direction are provided on the upper portion of the base 61, and a bolt 65 for preventing the fixing plate from moving is provided in each of the long grooves 61 from the base 51 side. Further, the base 61 is provided with an antenna pole 2 which is held by the base 61, and the pole 2 is formed so that an angle between an axial line of an antenna mounting portion 2a being an open end of the pole 2 and a line perpendicular to the plane formed by the base 61 is 40-60°. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for supporting a parabolic antenna.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a parabolic antenna support device includes a support for mounting a parabolic antenna on a support, and an antenna support connected to the support for supporting the parabolic antenna. The antenna support has an I-shaped or L-shaped configuration. One end of the support column is held by the support portion by, for example, welding.
That is, when the parabolic antenna support device is mounted on a support, the parabolic antenna is mounted on or near the end of the antenna mounting portion, which is the open end side of the antenna support, and the antenna support is installed vertically. Had a configuration.
[0003]
[Problems to be solved by the invention]
However, in the conventional parabolic antenna support device, since the antenna attached to the antenna support device is mainly an offset parabolic antenna, the elevation angle can be easily adjusted in the arrival direction of the radio wave from the satellite broadcast received by the parabolic antenna. It was configured as follows.
However, with the recent technological progress and the construction of new systems, not only systems that receive radio waves from satellites, for example, but also systems that transmit and receive similar radio waves from terrestrial base stations are considered. It is done.
However, as described above, if an attempt is made to use a conventional antenna support device to receive radio waves from a terrestrial base station, that is, a radio wave from the horizontal direction, it is necessary to redesign the antenna device, which leads to development costs. This causes problems such as an increase in the number of types of parts and an accompanying management cost.
In addition, if a new support pole for receiving radio waves from the horizontal direction is created by a new design, it is necessary to install a new support pole in addition to the support pole with the existing satellite antenna. Costs and material costs will increase.
The present invention has been made in view of these problems,
The purpose is to provide a parabolic antenna support device for mounting a parabolic antenna.
Another object is to provide a parabolic antenna support that can be mounted on a pole.
Another object is to provide a parabolic antenna support device to which a conventional offset parabolic antenna can be attached.
Another object of the present invention is to provide a parabolic antenna supporting device that can receive radio waves from a horizontal direction using a conventional offset parabolic antenna.
Another object of the present invention is to provide a parabolic antenna support device in which the axis of the antenna mounting portion on the open end side of the antenna support column is offset from the mounting surface of the parabolic antenna support device.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the invention of claim 1 includes a base, a fixing plate, and a pressing plate for a structure which is assembled to the fixing plate so as to be able to be pressed by a bolt tightening operation. The fixing plate is pivotally attached to a pivot point provided on the base to allow the base to swing freely, and the base is provided with a long groove in the swing direction, and the long groove is provided in the long groove. From the side of the base, a fastening tool for locking the fixed plate
Further, the base is provided with an antenna column held by the base,
The axis of the antenna attachment portion on the open end side of the antenna support and the vertical line of the plane formed by the base are formed so as not to be orthogonal to each other.
[0005]
According to a second aspect of the present invention, the axis of the antenna mounting portion on the open end side of the antenna support and the vertical line of the plane formed by the base have an angle of 40 to 60 °.
[0006]
According to a third aspect of the present invention, the antenna support is formed to have a bent portion bent toward the outside of the structure.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment embodying the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an example in which an antenna device 102 is mounted on a mounting column 50 of an existing satellite antenna 101 (for example, a BS parabolic antenna) using the parabolic antenna support device 110 of the present application. Reference numeral 103 denotes an installation location of a satellite antenna represented by, for example, the roof of a building. The column 50 is vertically attached to the support 104.
[0008]
The parabolic antenna support device 110 is configured to be able to receive a radio wave from a horizontal direction by using the antenna device 102 attached to the existing column 50. The antenna device 102 uses an existing parabolic antenna mirror surface 102a, support arm 102b, and mirror surface support device 102c, and the converter 102d and the primary radiator 102e are each designed so as to satisfy electrical characteristics according to a received radio wave. Is what is done.
[0009]
Next, the details of the parabolic antenna support device 110 of the present application will be described with reference to FIG. The parabolic antenna support device 110 is composed of one of a base 61 having a substantially U-shaped cross section and having both side plates 61a and 61a, and a structure such as a column 50, which is pivotally attached to a pivot point provided on the base 61. A fixed plate 60 to be contacted from the side, two sets of abutting plates 3 to be in contact with the opposite surface of the support column 50, four bolts 4 a for fastening the fixed plate 60 and the abutting plate 3, and welding to the base 61. , And a pipe-shaped antenna support 2 having one end 2c held therein.
[0010]
Next, a fixing plate 60 bent in an M shape is assembled to the base 61 so as to face the opening side of the base 61. One screw hole 62 is provided on each of the upper and lower sides of the both side plates 60a, 60a of the fixing plate 60, and the upper and lower sides of the both side plates 61a, 61a of the base body 61 are provided with the screw holes 62 respectively. Bolt insertion holes 63 (one is hidden and invisible) and 64 are formed at corresponding positions, and the bolt insertion holes 64 are formed in arc-shaped long grooves centered on the bolt insertion holes 63 formed in the lower part. Has become.
[0011]
The base 61 can be fixed to the fixing plate 60 by aligning the screw holes with the bolts 65, and by loosening the bolts 65, the base 61 is centered on the fixing point with respect to the fixing plate 60. As a point, the elevation angle can be adjusted by relatively rotating.
One end 2c of the substantially elliptical antenna support column 2 is held, for example, by welding at a substantially central portion of the outer surface of the substrate 61.
An offset parabolic antenna is mounted on the antenna mounting portion 2a on the open end side of the antenna support 2, but in the present application, the axis of the antenna mounting portion 2a of the antenna support 2 and the base 61 are formed. The antenna support 2 is formed such that the angle θ between the vertical line and the plane is 40 to 60 °. This relationship is shown in FIG.
[0012]
Next, the support plate 3 is formed by bending the long side of the rectangular metal plate toward the column 50 so as to have a substantially U-shaped cross section, and contacting the column 50 substantially at the center of the bent metal plate. A curved portion 9 is formed. Bolt holes are provided at both ends of the support plate 3. Then, the fixed plate 60 bent in an M-shape and the curved portion 9 of the support plate 3 are brought into contact with the column 50, and the bolt 4 a is provided from the bolt hole of the support plate 3 to the flat portion 60 b of the fixed plate 60. It is configured to pass through the screw holes 66a, 66b and 66c, 66d (66d is hidden by the side plate 60a and is not shown) so as to fasten the fixing plate 3.
In the embodiment of the present application, the screw holes 66a, 66b, 66c, and 66d are examples in which the nuts are fixed by, for example, welding so that the nuts match the screw holes formed in the flat portion 60b. Although the method for fastening the bolt 4a is described above, a method in which the fixing plate is provided with a screw hole having a thread to which the bolt 4a can be fastened may be used.
[0013]
Next, a second use example of the parabolic antenna support device 110 of the present invention will be described with reference to FIG. In the following description, the same components as those of the parabolic antenna support device 110 of the first embodiment are denoted by the same reference numerals, and the detailed description will be omitted.
The second embodiment is a method of increasing the mounting strength of the antenna support 2 to the base 61 as compared with the first embodiment.
In the present application, the antenna support 2 is formed in a substantially V shape, and one end side 2c of the antenna support 2 is fixed from the upper end surface to the lower end surface of the base 61 by, for example, welding. As a result, the antenna support 2 is firmly adhered to the base 61. A cap 2b is provided at the end of one end 2c of the antenna support 2.
Also in this case, similarly to the first embodiment, the angle θ between the axis of the antenna mounting portion 2a on the open end side of the antenna support 2 and the vertical line to the plane formed by the base 61 is set to 40 to 60 °. The antenna support 2 is formed in such a manner as to be formed.
[0014]
Next, a third embodiment of a parabolic antenna support device 110 according to the present invention will be described with reference to FIG.
In this embodiment, an antenna support member 61b provided by bending is provided on the outer surface of the base 61 so that the azimuth of the antenna device 102 can be adjusted.
[0015]
The antenna support 2 used here is substantially in the shape of a letter as shown in FIG. 5, and one end 2c of the antenna support 2 (in FIG. 5, it is inserted into the antenna support member 1a and cannot be seen) is It is inserted into the space on the inner surface side of the antenna support member 61b. That is, the dimension of the space on the inner surface side of the antenna support member 61b is formed to be slightly larger than the diameter of the antenna support 2, and a flange 2d is provided on a part of the outer periphery of the antenna support 2, and the flange 2d is provided. By forming the antenna support member 61b so as to be in contact with the upper end portion, the antenna support 2 is configured to be rotatable with respect to the base 1.
[0016]
Further, a nut 1c is fixed to the antenna support member 61b by, for example, welding to fix the insertion portion (2c) of the antenna support 2 to the base 61. A bolt 61d is provided which is screwed to the nut 61c and can be tightened and loosened from the outer surface direction. The bolt 61d prevents the antenna column 2 from being pulled out. Further, the direction of the antenna device 102 attached to the antenna support 2 can be freely adjusted, and when the direction adjustment is completed, the direction is completely fixed by tightening the bolt 61d.
[0017]
By reassembling the mounting plate 3 so that the bending direction of the long side of the metal plate is on the opposite side of the vertical bone, the metal plate can be fixed to a plurality of vertical bones of the fence. Furthermore, if the pitch between the main body base holes 66a, 66b and 66c, 66d and the pitch between the main body base holes 66a, 66c, 66b, 66d are made the same, the support plate 3 can be vertically moved from the conventional horizontal direction. By reattaching it in the direction, it can be fixed to the lateral bone of the fence, so it has a structure that can be installed anywhere.
[0018]
In the third embodiment, the method of mounting the one end 2c of the antenna support 2 from the upper end of the antenna support member 61b provided on the base 61 has been described. A method of mounting from the lower end direction of the antenna support member 61b may be used. In this case, after the one end 2c of the antenna support 2 is inserted, a flange may be fixed to the end of the one end 2c of the antenna support 2.
[0019]
The usage state of the parabolic antenna support device 110 attached as described above will be described. The mirror surface 102a of a conventionally used offset parabolic antenna (for example, an offset parabolic antenna for receiving BS satellite broadcasting) is provided at or near the end of the antenna mounting portion 2a on the open end side of the antenna support 2 of the supporting device 110. , A support arm 102b and a mirror surface support device 102c are used. However, each component of the above-described conventionally used offset parabolic antenna, when mounted on the antenna support 2 provided in the vertical direction, has an elevation angle of, for example, approximately ± 10 ° with a center of approximately 40 °. It is configured such that the direction can be adjusted for radio waves coming from above.
[0020]
Therefore, in order to use the above-described components of the conventionally used offset parabolic antenna as they are and to use the antenna device 102 for receiving a radio wave coming from the horizontal direction, the antenna device 102 must be replaced with the conventional vertical parabolic antenna. The antenna may be mounted so as to be inclined approximately 40 ° downward from the vertical direction as compared with the case where the antenna is mounted on the antenna support 2.
[0021]
Therefore, in the parabolic antenna support device 110 of the present application, as described above, the angle θ between the axis of the antenna mounting portion 2a of the antenna support 2 of the support device 110 and the vertical line with respect to the plane formed by the base 61 is set to 40 to 40. Since the antenna column 2 is formed so as to be at an angle of 60 °, the directivity of the antenna is directed in the horizontal direction, which is the direction of arrival of radio waves, simply by mounting the conventional offset parabolic antenna on the antenna column 2. Further, the mirror support device 102c provided in the antenna device 102 can adjust the angle in the range of approximately ± 10 ° as described above, so that the fine adjustment of the elevation angle can be easily performed.
[0022]
Furthermore, in the third embodiment, the bolts 1b provided on the antenna support member 1a are loosened and tightened when mounted on a fence or the like as described above, so that the antenna support 2 is adjusted when the azimuth is adjusted. Of the antenna device 102 attached to the parabolic antenna support device 110 of the present application is configured to be rotatable within a range of approximately ± 90 °, and to completely fix the antenna support 2 when the direction adjustment is completed. The azimuth can be easily adjusted.
[0023]
As described above, the parabolic antenna support device 110 of the present application has an angle formed by the axis of the antenna mounting portion 2a on the open end side of the antenna support 2 on which the antenna device 102 is mounted and the vertical line formed by the plane of the main body base 1. Since the antenna support 2a is formed so that θ is set to 40 to 60 °, a parabolic antenna which can easily receive a radio wave from a horizontal direction by using each component of a conventionally used offset parabolic antenna. A support device 110 can be provided.
It should be noted that the present application is not limited to the above-described embodiment, and may be implemented by appropriately changing the shape and configuration of each part without departing from the spirit of the present invention.
[0024]
【The invention's effect】
As described in detail above, according to the first aspect of the present invention, there is provided a base, a fixing plate, and a pressing plate for a structure which is assembled to the fixing plate so as to be pressed by a bolt tightening operation. The fixed plate is pivotally attached to a pivot point provided on the base to allow the base to swing freely, and the base is provided with a long groove in the swing direction, and a long groove is provided in the long groove. Is provided with a fastener for stopping the rotation of the fixing plate from the base side,
Further, the base is provided with an antenna column held by the base,
Since the axis of the open end of the antenna support and the vertical line of the plane formed by the base are not orthogonal to each other, if the parabolic antenna support device of the present invention is used, a conventional offset parabolic antenna can be used. Since it can easily receive not only radio waves from conventional satellites but also radio waves from other directions, there is no need to develop a new antenna device, reducing development costs, increasing the number of parts, and accompanying management. It is possible to provide a parabolic antenna support device having high effectiveness, such as reduction in cost.
[0025]
According to the second aspect of the present invention, the axis of the antenna mounting portion on the open end side of the antenna support and the vertical line of the plane formed by the base are formed to have an angle of 40 to 60 degrees. Since it is possible to easily receive radio waves from the horizontal direction using an offset parabolic antenna from Japan, there is no need to develop a new antenna device, reducing development costs, increasing the number of parts, and managing costs associated therewith. Thus, it is possible to provide a parabolic antenna supporting device having a high effectiveness, such as a reduction in the number of components.
[0026]
According to the third aspect of the present invention, since the portion for holding the antenna support on the main body base and the antenna mounting portion on the open end side for mounting the parabolic antenna are integrally formed, the cost is low and the number of parts is small. A parabolic antenna support device that can be easily assembled can be provided.
[Brief description of the drawings]
FIG. 1 shows an example of use when a parabolic antenna support device according to the present invention is mounted on a column for an existing satellite antenna.
FIG. 2 shows a first embodiment of a parabolic antenna support device according to the present invention.
FIG. 3 shows the relationship between the axis of the antenna support according to the present invention and a vertical line to a plane formed by the main body base.
FIG. 4 shows a parabolic antenna supporting apparatus according to a second embodiment of the present invention.
FIG. 5 shows a third embodiment of the parabolic antenna support device according to the present invention.
[Explanation of symbols]
2 ... antenna support, 2a ... antenna mounting part (open end), 2b ... cap, 2c ... one end, 2d ... flange, 3 ... support plate, 4a ... bolt, 9 ... bending part, 50 ... support, 60 ... fixed Plate, 60a side plate, 60b flat portion, 61 base, 61a side plate, 61b antenna support member, 61c nut, 61d bolt, 62 screw hole, 63 bolt insertion hole, 64 bolt insertion hole ( Long groove), 65 bolt, 66a, 66b, 66c, 66d screw hole, 110 parabolic antenna supporting device, 101 satellite antenna (for example, a parabolic antenna for BS), 102 antenna device, 102a mirror surface of parabolic antenna, 102b ... Support arm, 102c: mirror support device, 102d: converter, 102e: primary radiator, 103: rooftop, 104: support base, 105: coaxial cable .

Claims (3)

A base, a fixing plate, and a holding plate for a structure which is assembled to the fixing plate so as to be able to be pressed by a bolt tightening operation, while the fixing plate has a pivot point provided on the base. The base is pivoted to allow the base to move freely, and the base is provided with a long groove in the direction of movement, into which a fastener for locking the fixed plate from stopping is projected from the base. Set
Further, the base is provided with an antenna support held by the base,
A parabolic antenna support device, wherein an axis of an antenna mounting portion on an open end side of the antenna support and a vertical line of a plane formed by the base are formed so as not to be orthogonal to each other. 2. The antenna according to claim 1, wherein the axis of the antenna mounting portion on the open end side of the antenna support and the vertical line of the plane formed by the base have an angle of 40 to 60 [deg.]. Parabolic antenna support device. 3. The parabolic antenna support device according to claim 1, wherein the antenna support has a bent portion bent toward the outside of the structure.

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