JP2007134864A - Antenna fitting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact antenna fitting apparatus for adjusting an elevating angle and a polarization angle of an antenna system. <P>SOLUTION: The antenna system 1 is fitted to a mast by interposing the mast between a mast support metallic fixture 33 and a fixing fixture 32. The polarization angle can be adjusted by turnably fixing a support part 21 formed projected from an edge of an antenna case 20 to a main body part 31a of an angle adjustment fixture 31. The elevating angle can be adjusted by turnably fixing a pair of upright parts 31d, 31g formed projected from one side of the angle adjustment fixture 31 to a pair of projections 32b, 32c formed projected from one side of the fixing fixture 32. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an antenna mounting device that supports an elevation angle and a polarization angle of an antenna device in an adjustable manner.

  Unlike conventional analog broadcasting, terrestrial digital broadcasting is a digital signal as long as it can receive incoming radio waves at a certain level or higher. Therefore, an antenna that receives terrestrial digital broadcasting does not necessarily have a high gain. For this reason, compared with conventional antennas, antennas that are smaller and easier to handle have been expected, and recently, such antennas have also been produced.

However, although it is not necessary to use a high-gain antenna, if the antenna is adjusted to have a degree of freedom and reception sensitivity becomes higher, the convenience of installation is further improved. Even when the antenna is installed at a location where the mast to which the antenna is attached is slightly inclined, if the antenna can be installed so that the inclination of the mast can be corrected, radio waves can be received better. Furthermore, since radio waves are reflected by buildings in residential areas, building areas, and the like, reception sensitivity may be improved if the antenna is installed slightly upward. Such a case can be solved by adjusting the elevation angle and polarization angle of the antenna.
Conventionally, an antenna mounting device that can adjust the elevation angle and polarization angle of an antenna is known, but such an antenna mounting device is complicated and large in size, and is not suitable for application to a small antenna. There was a problem that.

  Therefore, an object of the present invention is to provide an antenna mounting device applicable to a small antenna capable of adjusting the elevation angle and polarization angle of an antenna device.

  In order to achieve the above object, an antenna mounting device according to the present invention includes a main body portion to which a support portion formed so as to protrude from an edge portion of the antenna device is rotatably fixed in a first plane; And a pair of upright portions formed so as to protrude from one surface of the main body, and are fixed to the protrusion formed on the fixture in a second surface orthogonal to the surface. The most important feature is that it is equipped with an angle adjustment tool.

  According to the present invention, the support portion formed so as to protrude from the edge of the antenna device is rotatably fixed in the first plane, and the second plane orthogonal to the first plane. And an angle adjuster provided with a pair of upstanding portions formed so as to protrude from one surface of the main body portion, while being rotatably fixed to the protruding portion formed on the fixture. Therefore, both the elevation angle and the polarization angle can be adjusted by the angle adjuster, and an antenna mounting device suitable for a small antenna device can be obtained.

FIG. 1 is an exploded perspective view showing a configuration of an antenna device including an antenna mounting device according to an embodiment of the present invention.
The antenna device 1 shown in FIG. 1 includes a small antenna mounting device 3 that can adjust the elevation angle and polarization angle of the antenna unit 2. The antenna unit 2 is planar and has a rectangular parallelepiped antenna case 20 with a reduced thickness. The planar antenna is accommodated in the antenna case 20. This antenna can be an antenna that can receive terrestrial digital broadcasting, for example.

  The antenna case 20 in the antenna portion 2 is formed by molding a radio wave permeable resin material, such as AES (acrylonitrile-ethylene-propylene-diene rubber-styrene copolymer) resin or acrylic resin. The resin material has a low dielectric constant. A small and thin planar antenna such as the planar antenna proposed in Japanese Patent Application No. 2005-205131 is housed inside the antenna case 20. The antenna case 20 has a vertical length of about 230 mm and a horizontal length of about 150 mm, for example, and can have a thickness of about 10 mm to 30 mm, depending on the configuration of the housed antenna. The detailed configuration of the antenna case 20 is shown in FIGS. 4 is a side view showing the configuration of the antenna case 20, FIG. 5 is a rear view showing the configuration of the antenna case 20, and FIG. 6 is a bottom view showing the configuration of the antenna case 20. As shown in these drawings, the support portion 21 is formed so as to protrude downward from the center of one edge portion of the long side on the lower surface of the antenna case 20. The support portion 21 is formed in a tapered shape so that the width gradually decreases from the upper portion toward the lower portion, and the top portion protrudes in a semicircular shape. A through hole 21a is formed in the substantially center of the semicircular portion of the support portion 21, and a radial first sawtooth portion 21b is formed around the through hole 21a on one surface facing outward. It is formed in a ring shape.

The antenna mounting device 3 includes a butterfly bolt 22, an angle adjusting tool 31, a fixture 32, a mast receiving bracket 33, a U-shaped bolt 34, a butterfly bolt 35, and a pair of butterfly nuts 36. The angle adjusting tool 31 and the fixing tool 32 are made of a resin material such as AES resin or made of metal, and the mast receiving metal fitting 33 is made by processing a metal plate.
A detailed configuration of the angle adjuster 31 is shown in FIGS. 7 is a front view showing the configuration of the angle adjuster 31, FIG. 8 is a side view showing the configuration of the angle adjuster 31, FIG. 9 is a rear view showing the configuration of the angle adjuster 31, and FIG. FIG. 3 is a plan view showing a configuration of an angle adjuster 31.

  As shown in these drawings, the angle adjuster 31 has a rectangular shape in the upper part and a tapered shape in which the width gradually decreases from the central part toward the lower part, and the tapered top part is formed in a semicircular shape. The main body portion 31a is provided, and a screw hole 31c is formed in a substantially semicircular center of the main body portion 31a. On one surface of the main body 31a, a radial second sawtooth portion 31b is formed in a ring shape around the screw hole 31c. In addition, a pair of a first upright portion 31d and a second upright portion 31g are provided on the upper surface of the other surface of the main body 31a so as to face each other. The first upright part 31d and the second upright part 31g are formed along the direction from the upper part to the lower part with the tip part formed in a semicircular shape. A first insertion hole 31f is formed substantially at the center of the semicircular portion of the first standing portion 31d, and a radial third sawtooth portion 31e is formed on one surface of the first standing portion 31d around the first insertion hole 31f. Has been. Further, a second insertion hole 31h is formed substantially at the center of the semicircular part of the second upright part 31g, and a radial sawtooth part (not shown) around the second insertion hole 31h is the second upright part 31g. It is formed on one side.

The detailed structure of the fixture 32 is shown in FIGS. 17 is a front view showing the configuration of the fixture 32, FIG. 18 is a rear view showing the configuration of the fixture 32, FIG. 19 is a side view showing the configuration of the fixture 32, and FIG. It is a top view which shows the structure of 32. FIG.
As shown in these drawings, the fixture 32 is composed of an elongated rectangular main body 32a, and a V-shaped groove 32f is formed in the vertical direction at the center of one surface of the main body 32a. A mast to which the antenna device 1 is fixed is held in the V-shaped groove 32 f so that the mast is clamped between the mast receiving bracket 33. A first through hole 32d and a second through hole 32e are formed on both sides of the V-shaped groove 32f. In addition, a circular recess in which the head of a screw inserted through the first through hole 32d and the second through hole 32e can be accommodated around the first through hole 32d and the second through hole 32e on the other surface of the main body 32a. Is provided. Further, a U-shaped groove 32h is formed in the lateral direction connecting the first through hole 32d and the second through hole 32e. A U-shaped bolt 34 described later is accommodated in the U-shaped groove 32h. In this case, both sides of the U-shaped bolt 34 are inserted into the first through hole 32d and the second through hole 32e.

  A first protrusion 32b and a second protrusion 32c are formed outside the first through hole 32d and the second through hole 32e so as to protrude from the other surface of the main body 32a. In this case, the 1st protrusion part 32b is formed inside the side edge, and the front-end | tip part of the 1st protrusion part 32b and the 2nd protrusion part 32c is formed in semicircle shape, and is formed in the vertical direction. A screw hole 32j is formed in the semicircular center of the first protrusion 32b, and a radial fifth serrated part 32i is formed in a ring shape around the screw hole 32j on one surface of the first protrusion 32b. Is formed. Further, as shown in FIGS. 18 and 20, a shaft portion 32g having a predetermined length is formed from one surface of the second projecting portion 32c and from a substantially semicircular center so as to extend toward the first projecting portion 32b. A radial sixth sawtooth portion 32k (see FIG. 26) is formed around the root of the shaft portion 32g of the second projecting portion 32c.

  The mast receiving bracket 33 made by processing a metal plate is formed in a horizontally long shape, and a V-shaped portion 33a bent in a V-shape is formed at a substantially central portion. The mast bracket 33 is bent so that the upper edge and the lower edge are substantially orthogonal to the inside so as to be strong against bending load, and the inner side of the V-shaped portion 33a of the bent portion at the upper edge and the lower edge. A plurality of pointed teeth that bite into the mast are formed. A long groove 33b is formed on the right side of the V-shaped portion 33a, and a long hole 33c is formed on the left side of the V-shaped portion 33a. The ends of the U-shaped bolts 34 are respectively inserted into the long grooves 33b and the long holes 33c. A pair of wing nuts 36 are screwed onto the tips of the U-shaped bolts 34 which are inserted through the long grooves 33b and the long holes 33c and project. Further, a butterfly bolt 35 is inserted into the through hole 21 a of the support portion 21 formed in the antenna case 20 and is screwed into the screw hole 31 c in the main body portion 31 a of the angle adjuster 31. Furthermore, the shaft part 32g formed in the 2nd protrusion part 32c in the fixing tool 32 is inserted in the 1st insertion hole 31f of the 1st standing part 31d in the angle adjustment tool 31, and the 2nd standing in the angle adjustment tool 31 is included. The butterfly bolt 22 is inserted into the second insertion hole 31h of the portion 31g and screwed into the screw hole 32j of the first protrusion 32b of the fixture 32.

FIG. 2 is a side view showing a configuration of an antenna device 1 including an antenna mounting device 3 according to an embodiment of the present invention, and FIG. 3 is a side view showing a state when the antenna device 1 is rotated by 90 ° in a vertical plane. Shown in However, in FIG. 2 and FIG. 3, the mast catch 33, the U-shaped bolt 34, and the wing nut 36 are omitted.
As shown in FIGS. 2 and 3, the support portion 21 provided on the antenna case 20 by the antenna mounting device 3 is fixed to the main body portion 31 a of the angle adjuster 31 by a butterfly bolt 35. In this case, the antenna case 20 can rotate about the butterfly bolt 35 with respect to the angle adjuster 31 by loosening the butterfly bolt 35. As a result, the polarization angle of the antenna unit 2 can be set to receive horizontal polarization as shown in FIG. 2, and the antenna case 20 is rotated by about 90 ° with respect to the angle adjuster 31. As shown in FIG. 3, it can be set to receive vertically polarized waves.

  Furthermore, the shaft part 32g formed in the 2nd protrusion part 32c in the fixing tool 32 is inserted in the 1st insertion hole 31f of the 1st standing part 31d in the angle adjustment tool 31, and the 2nd standing in the angle adjustment tool 31 is included. The butterfly bolt 22 is inserted into the second insertion hole 31h of the portion 31g, and is screwed and fixed to the screw hole 32j of the first protrusion 32b of the fixture 32. In this case, by loosening the butterfly bolt 22, the antenna case 20 to which the angle adjusting tool 31 is fixed can be rotated with respect to the fixture around the butterfly bolt 22 and the shaft portion 32g. Thereby, the elevation angle of the antenna unit 2 can be adjusted to an arbitrary elevation angle. The elevation angle can be set at least from -90 ° to + 90 °. It should be noted that the elevation angle can be adjusted in the same manner whether the horizontal polarization shown in FIG. 2 is received or the vertical polarization shown in FIG. 3 is received.

Next, details of the mechanism for adjusting the polarization angle and the elevation angle will be described. 11 and 12 show an assembly process of the mechanism for adjusting the polarization angle. FIG. 11 is a perspective view showing a state of a preparation process for fixing the antenna case 20 to the angle adjusting tool 31, and FIG. 12 is a perspective view showing a state where the antenna case 20 is fixed to the angle adjusting tool 31.
In order to fix the antenna case 20 to the angle adjuster 31, as shown in FIG. 11, the through hole 21 a in the support portion 21 formed in the antenna case 20 is formed in the main body 31 a of the angle adjuster 31. Align with the screw hole 31c. Then, the butterfly bolt 35 is inserted into the through hole 21 a in the support portion 21 and screwed into the screw hole 31 c in the angle adjuster 31. Thereby, as shown in the perspective view of FIG. 12, the support portion 21 formed on the antenna case 20 by the butterfly bolt 35 is fixed to the angle adjuster 31. In this case, the antenna case 20 is rotatably fixed to the angle adjuster 31 with the butterfly bolt 35 as the rotation center.

  As described above, since the support portion 21 formed on the antenna case 20 is rotatably fixed to the angle adjuster 31, the antenna case 20 is rotated when the butterfly bolt 35 is loosened in the configuration shown in FIG. 2. On the other hand, since the rotation is possible with the butterfly bolt 35 as the rotation center, the polarization angle of the antenna unit 2 can be adjusted. The state with respect to the angle adjustment tool 31 of the support part 21 formed in the antenna case 20 when adjusting the polarization angle is shown in FIGS. FIG. 13 is a diagram illustrating a state in which the polarization angle is set to 0 ° and the horizontal adjustment is received, and the angle adjuster 31 and the support portion 21 formed on the antenna case 20 are parallel to each other. FIG. 14 is a view showing a state in which the polarization angle is adjusted to about 30 °, and the support portion 21 formed on the antenna case 20 is fixed to the angle adjuster 31 with an inclination of about 30 °. Become so. Further, FIG. 29 is a diagram showing a state in which the polarization angle is adjusted to about 60 °, and the support portion 21 formed on the antenna case 20 is fixed to the angle adjuster 31 with an inclination of about 60 °. Become so. Furthermore, FIG. 30 is a diagram showing a state in which the polarization angle can be adjusted to about 90 ° to receive vertical polarization, and the support portion 21 formed in the antenna case 20 with respect to the angle adjustment tool 31. Is fixed at an angle of about 90 °. Thus, when the adjustment of the polarization angle in the antenna portion 2 is completed, the first sawtooth shape formed on one surface of the support portion 21 formed in the antenna case 20 by tightening the butterfly bolt 35. The portion 21b meshes with the second serrated portion 31b formed on one surface of the angle adjuster 31. Thereby, the antenna part 2 becomes non-rotatable with respect to the angle adjuster 31, and can maintain the adjusted polarization angle.

Next, the assembly process of the mechanism for adjusting the elevation angle is shown in FIGS. FIG. 21 is a perspective view showing a state of a preparation process for fixing the angle adjusting tool 31 to the fixing tool 32, and FIG. 22 is a perspective view showing a state where the angle adjusting tool 31 is fixed to the fixing tool 32.
In order to fix the angle adjusting tool 31 to the fixing tool 32, the first standing part 31d of the angle adjusting tool 31 is aligned with the second projecting part 32c of the fixing tool 32 as shown in FIG. 31 g is aligned with the first protrusion 32 b of the fixture 32. Then, the first insertion hole 31f formed in the first upright portion 31d is inserted into the shaft portion 32g formed in the second projecting portion 32c. Next, the butterfly bolt 22 is inserted into the second insertion hole 31h formed in the second upright portion 31g and screwed into the screw hole 32j formed in the first protruding portion 32b. As a result, the angle adjuster 31 is fixed to the fixture 32 by the butterfly bolt 22 as shown in FIG. In this case, the angle adjusting tool 31 is fixed to the fixing tool 32 so as to be rotatable about the butterfly bolt 22 and the shaft portion 32g.

  Since the angle adjuster 31 is rotatably fixed to the fixture 32 as described above, when the butterfly bolt 22 is loosened in the configuration shown in FIG. 2, the antenna case 20 is vertically moved with the butterfly bolt 22 and the shaft portion 32g as the center of rotation. Can be rotated. The manner in which rotation is possible is shown in FIGS. The state of the side view shown in FIG. 23 is a state in which the angle adjustment tool 31 is not rotated with respect to the fixing tool 32 and the elevation angle is directed in the horizontal direction, and the state of the side view shown in FIG. The angle adjustment tool 31 is rotated upward with respect to the fixture 32 so that the elevation angle is directed upward. The state of the side view shown in FIG. 31 is rotated downward so that the elevation angle is directed downward. In this way, the elevation angle of the antenna unit 2 can be adjusted by a desired angle. After the elevation angle of the antenna unit 2 is adjusted, the butterfly bolt 22 is tightened to form one surface of the first upright portion 31d. The third serrated portion 31e and the sixth sawtooth portion 32k formed around the shaft portion 32g of the second projecting portion 32c come into mesh with each other, and are formed on one surface of the second upstanding portion 31g. The serrated portion and the fifth serrated portion 32i formed on one surface of the first protrusion 32b come into mesh with each other. As described above, as a result of the engagement between the serrated portions, the angle adjusting tool 31 cannot rotate with respect to the fixing tool 32, and the adjusted elevation angle can be maintained.

  As described above, since the first serrated portion 21b of the antenna case 20 meshes with the second serrated portion 31b of the angle adjuster 31, the antenna case 20 has a predetermined distance with respect to the angle adjuster 31. It will be possible to rotate by angle. In addition, the serrated portions formed on one surface of the third serrated portion 31e and the second upright portion 31g in the angle adjuster 31 are respectively formed on the fifth serrated portion 32i and the sixth serrated portion 32k in the fixture 32. Since the teeth are engaged, the angle adjusting tool 31 can rotate with respect to the fixing tool 32 by a predetermined angle. These predetermined angles are determined by the distance between the crests and the crests of the toothed portions that mesh with each other, and are set to about 15 °, for example. However, this angle is preferably determined according to the directivity sharpness (half-value angle) of the antenna unit 2. If the directivity is sharp, set the predetermined angle to 10 ° or 5 ° by reducing the interval between the crests of the toothed portion that meshes, and if the directivity is broad, the meshing It is preferable that the predetermined angle is set to 20 ° or 25 ° by increasing the interval between the crests of the serrated portion.

Next, an operation process for attaching the antenna device 1 including the antenna attachment device 3 according to the embodiment of the present invention to the mast is shown in FIGS. 30 is a perspective view showing a preparation process for attaching the antenna device 1 to the mast, FIG. 31 is a perspective view showing a first step of attaching the antenna device 1 to the mast, and FIG. 32 is a diagram showing the antenna device 1 attached to the mast. It is a perspective view which shows a state. However, the mast is omitted in each figure.
In order to attach the antenna device 1 to the mast, as shown in FIG. 30, both ends bent in a U-shape provided with a screw portion of a U-shaped bolt 34 are formed in the main body 32 a of the fixture 32. The first through hole 32d and the second through hole 32e are inserted from the other surface side of the fixture 32 to a state shown in FIG. In this case, the central portion of the U-shaped bolt 34 is fitted into a U-shaped groove 32h configured as shown in FIG. 18 formed on the other surface of the main body portion 32a. Thereby, even if the angle adjusting tool 31 is attached to the fixing tool 32, the U-shaped bolt 34 can be prevented from coming into contact with or coming into contact with the angle adjusting tool 31. Next, both ends of the U-shaped bolt 34 protruding from the one surface side of the fixing tool 32 are inserted into the long groove 33b and the long hole 33c of the mast receiving metal fitting 33 which are aligned with the fixing tool 32 so that the mast is positioned therebetween. Then, the wing nuts 36 are respectively screwed into both ends of the U-shaped bolts 34 which are inserted through the long grooves 33b and the long holes 33c of the mast receiving bracket 33 and project. A state in which the wing nut 36 is screwed to both ends of the U-shaped bolt 34 is the state shown in FIG. Thus, although not shown in FIGS. 31 and 32, the mast to which the antenna device 1 is attached is sandwiched between the fixture 32 and the mast bracket 33, and the wing nut 36 is attached to both the U-shaped bolts 34. By screwing to the tip, a plurality of pointed teeth formed inside the V-shaped portion 33a bite into the mast held in the V-shaped groove portion 32f formed in the main body portion 32a, and reliably It becomes fixed.

  The antenna mounting device 3 according to the present invention can be mounted on the wall of a building instead of the mast. When attaching to the wall surface, as shown in FIG. 33, a pair of screws 38 are inserted from the other surface side of the fixture 32 into the first through hole 32d and the second through hole 32e formed in the main body 32a, respectively. And so on. The screw 38 is a screw according to the material of the wall surface to be attached, such as a wood screw, a tap screw, or a concrete screw. Note that the head of the screw 38 is housed in a circular recess formed in the bottom surface of the U-shaped groove 32h around the first through hole 32d and the second through hole 32e shown in FIG.

FIG. 26 shows a partially enlarged view of a mechanism for pivotally supporting the first standing portion 31d of the angle adjusting tool 31 described with reference to FIGS. 21 and 22 to the second projecting portion 32c of the fixing tool 32. FIG. Since the mechanism of FIG. 26 is as described above, description thereof is omitted, but this mechanism is an example, and an example of another mechanism is shown in FIG.
In the mechanism shown in FIG. 27, a screw hole 31i is formed in the first upright portion 31d, and an insertion hole 32m is formed in the second protruding portion 32c. A butterfly bolt is formed from the other surface side of the insertion hole 32m. 37 is inserted and screwed into the screw hole 31i of the first upright portion 31d. As a result, the first upright portion 31d is rotatably supported by the second protruding portion 32c. A radial sixth sawtooth portion 32k is formed around the insertion hole 32m on one surface of the second protrusion 32c. Here, when the butterfly bolt 37 is loosened, the first upright portion 31d is rotatable with respect to the second projecting portion 32c. When the butterfly bolt 37 is tightened, the first upright portion 31d is formed on the other surface. The serrated portion and the sixth sawtooth portion 32k formed on one surface of the second projecting portion 32c come into mesh with each other, and the first upright portion 31d cannot rotate with respect to the first projecting portion 32b. The antenna unit 2 can maintain the adjusted elevation angle. Since the first upright portion 31d and the second upright portion 31g are simultaneously rotated, the first upright portion 31g is inserted into the second insertion hole 31h of the second upright portion 31g and screwed into the screw hole 32j of the first protruding portion 32b. The butterfly bolt 22 and the butterfly bolt 37 are loosened at the same time so as to be rotatable, and at the same time, the butterfly bolt 22 and the butterfly bolt 37 are firmly fixed so as not to rotate.

Next, still another example of a mechanism for pivotally supporting the first standing portion 31d of the angle adjusting tool 31 on the second protruding portion 32c of the fixing tool 32 is shown in FIG.
In the mechanism shown in FIG. 19, a disc-shaped boss portion 32n is formed on one surface of the second protrusion 32c, and a fitting recess 31j in which the boss portion 32n is fitted on the other surface of the first upright portion 31d. Is formed. A radial sixth sawtooth portion 32k is formed on the top surface of the boss portion 32n, and a radial sawtooth portion that engages the sixth sawtooth portion 32k is formed on the bottom surface of the fitting recess 31j. Yes. In a state where the boss portion 32n is fitted in the fitting recess 31j, the butterfly bolt 22 inserted through the second insertion hole 31h of the second upright portion 31g and screwed into the screw hole 32j of the first protruding portion 32b is loosened. In this case, the first upright portion 31d is rotatably supported with respect to the second protruding portion 32c. When the butterfly bolt 22 is fastened to the screw hole 32j, the sawtooth portion formed on the bottom surface of the fitting recess 31j of the first upright portion 31d and the upper surface of the boss portion 32n of the second projecting portion 32c are formed. The six serrated portions 32k mesh with each other, the first upright portion 31d cannot rotate with respect to the second protruding portion 32c, and the antenna portion 2 can maintain the adjusted elevation angle.

Next, still another example of a mechanism for pivotally supporting the first upright portion 31d of the angle adjusting tool 31 on the second protruding portion 32c of the fixing tool 32 is shown in FIG.
In the mechanism shown in FIG. 29, a convex sawtooth portion 32p is formed on one surface of the second projecting portion 32c in a conical shape and a radial sawtooth portion is formed, and a first upright portion 31d is provided. The other surface is provided with a concave serrated portion 31k having a conical concave center and a radial serrated portion formed therein. In a state where the convex serrated portion 32p is fitted to the concave serrated portion 31k, the butterfly is inserted into the second insertion hole 31h of the second upright portion 31g and screwed into the screw hole 32j of the first protruding portion 32b. When the bolt 22 is loosened, the first upright portion 31d is rotatably supported with respect to the second protruding portion 32c. When the butterfly bolt 22 is tightened into the screw hole 32j, the convex sawtooth portion 32p and the concave sawtooth portion 31k of the second protrusion portion 32c come into mesh with each other, and the first upright portion 31d is in contact with the second protrusion portion 32c. The antenna unit 2 can maintain the adjusted elevation angle.
In the antenna mounting device 3 according to the present invention, any one of the configurations shown in FIGS. 26 to 29 can be adopted.

The antenna device including the antenna mounting device according to the embodiment of the present invention can be an antenna device that receives terrestrial digital broadcasting. The present invention can also be applied to an antenna device that transmits and receives a UHF band.
In the above description, butterfly bolts and butterfly nuts are used. However, the present invention is not limited to this, and generally used bolts and nuts can be used. Furthermore, although the sawtooth portion is formed in a circular shape or a ring shape, the sawtooth portion may be formed in a polygonal shape or a fan shape.

It is a disassembled perspective view which shows the structure of an antenna apparatus provided with the antenna attachment apparatus concerning the Example of this invention. It is a side view which shows the structure of an antenna apparatus provided with the antenna attachment apparatus concerning the Example of this invention. It is a side view which shows the state at the time of rotating an antenna apparatus provided with the antenna attachment apparatus concerning the Example of this invention 90 degrees in a vertical surface. It is a side view which shows the structure of the antenna case in the antenna attachment apparatus of the Example of this invention. It is a rear view which shows the structure of the antenna case in the antenna attachment apparatus of the Example of this invention. It is a bottom view which shows the structure of the antenna case in the antenna attachment apparatus of the Example of this invention. It is a front view which shows the structure of the angle adjustment tool in the antenna attachment apparatus of the Example of this invention. It is a side view which shows the structure of the angle adjustment tool in the antenna attachment apparatus of the Example of this invention. It is a rear view which shows the structure of the angle adjustment tool in the antenna attachment apparatus of the Example of this invention. It is a top view which shows the structure of the angle adjustment tool in the antenna attachment apparatus of the Example of this invention. It is a perspective view which shows the state of the preparation process which adheres the angle adjustment tool in the antenna attachment apparatus of the Example of this invention to an antenna case. It is a perspective view which shows the state which fixed the angle adjustment tool in the antenna attachment apparatus of the Example of this invention to the antenna case. It is a figure which shows the state at the time of adjusting a polarization angle to 0 degree in the antenna attachment apparatus of the Example of this invention. It is a figure which shows the state at the time of adjusting a polarization angle to about 30 degrees in the antenna mounting apparatus of the Example of this invention. It is a figure which shows the state at the time of adjusting a polarization angle to about 60 degrees in the antenna attachment apparatus of the Example of this invention. It is a figure which shows the state at the time of adjusting a polarization angle to about 90 degrees in the antenna attachment apparatus of the Example of this invention. It is a front view which shows the structure of the fixing tool in the antenna attachment apparatus of the Example of this invention. It is a rear view which shows the structure of the fixing tool in the antenna attachment apparatus of the Example of this invention. It is a side view which shows the structure of the fixing tool in the antenna attachment apparatus of the Example of this invention. It is a top view which shows the structure of the fixing tool in the antenna attachment apparatus of the Example of this invention. It is a perspective view which shows the state of the preparatory process which adheres the angle adjustment tool to the fixing tool in the antenna attachment apparatus of the Example of this invention. It is a perspective view which shows the state which fixed the angle adjustment tool to the fixing tool in the antenna attachment apparatus of the Example of this invention. It is a side view which shows the state which set the elevation angle to the horizontal direction in the antenna attachment apparatus of the Example of this invention. It is a side view which shows the state which set the elevation angle to the downward direction in the antenna attachment apparatus of the Example of this invention. It is a side view which shows the state which set the elevation angle to the upper direction in the antenna attachment apparatus of the Example of this invention. It is a perspective view which shows an example of the structure which pivotally supports the 1st standing part in the 2nd protrusion part in the antenna attachment apparatus of the Example of this invention. It is a perspective view which shows the other example of the structure which pivotally supports the 1st standing part in the 2nd protrusion part in the antenna attachment apparatus of the Example of this invention. It is a perspective view which shows the further another example of the structure which pivotally supports the 1st standing part in the 2nd protrusion part in the antenna attachment apparatus of the Example of this invention. It is a perspective view which shows the further another example of the structure which pivotally supports the 1st standing part in the 2nd protrusion part in the antenna attachment apparatus of the Example of this invention. It is a perspective view which shows the preparation process which attaches the antenna apparatus in the antenna attachment apparatus of the Example of this invention to a mast. It is a perspective view which shows the 1st process of attaching the antenna apparatus in the antenna mounting apparatus of the Example of this invention to a mast. It is a perspective view which shows the state which attached the antenna apparatus in the antenna mounting apparatus of the Example of this invention to the mast. It is a perspective view which shows the case where the antenna apparatus in the antenna attachment apparatus of the Example of this invention is attached to a wall surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna apparatus, 2 Antenna part, 3 Antenna mounting apparatus, 20 Antenna case, 21 Support part, 21a Through-hole, 21b 1st serrated part, 22 Butterfly bolt, 31 Angle adjustment tool, 31a Main body part, 31b 2nd serrated form Part, 31c screw hole, 31d first standing part, 31e third serrated part, 31f first insertion hole, 31g second standing part, 31h second insertion hole, 31i screw hole, 31j fitting recess, 31k concave serrated Part, 32 fixing tool, 32a body part, 32b first projecting part, 32c second projecting part, 32d first through hole, 32e second through hole, 32f U-shaped groove part, 32g shaft part, 32h V-shaped groove, 32i 5th serrated part, 32j screw hole, 32k 6th serrated part, 32m insertion hole, 32n boss part, 32p convex serrated part, 33 mast catch metal fitting, 33a V-shaped part, 3b long groove, 33c long holes, 34 U bolts, 35 wing bolt, 36 butterfly nut, 37 wing bolt, 38 Screw

Claims (8)

An antenna mounting device that supports an elevation angle and a polarization angle of a planar antenna device in an adjustable manner,
A support portion formed to protrude from an edge of the antenna device;
A main body part that supports the support part in a first surface so as to be rotatable, and a main body part that is rotatably supported with respect to a fixture in a second surface orthogonal to the first surface. An angle adjuster comprising a pair of upright portions formed protruding from one surface of the portion;
A pair of projecting portions that rotatably support the pair of upstanding portions in the second surface are formed on one surface, and a holding device that holds the supported object to which the antenna device is attached on the other surface. Said fixture in which means is formed;
An antenna mounting device comprising:   A radial first sawtooth portion is formed on one surface of the support portion, and a radial second sawtooth portion meshing with the first sawtooth portion is formed on the main body portion of the angle adjuster. It is formed on one surface, and the support part can be fixed to the main body part by screwing means, and the support part can be rotated with respect to the main body part when the screwing means is loosened. When the screwing means is tightened, the first sawtooth portion and the second sawtooth portion are engaged with each other so that the support portion is attached to the body portion so as not to rotate. The antenna mounting device according to claim 1, wherein   A radial third sawtooth portion is formed on one surface of the upright portion of the angle adjuster, and a radial fourth sawtooth portion meshing with the third sawtooth portion is provided in the fixture. The standing portion is formed on one surface of the protruding portion so that the rising portion can be fixed to the protruding portion by screwing means, and the rising portion rotates with respect to the protruding portion when the screwing means is loosened. When the screwing means is tightened, the third sawtooth portion and the fourth sawtooth portion mesh with each other, so that the upright portion cannot rotate with respect to the projecting portion. The antenna mounting device according to claim 1, wherein the antenna mounting device is attached to the antenna.   A shaft portion is provided on one of the pair of protrusions, and the shaft portion is inserted into an insertion hole provided in one of the pair of upright portions, and an insertion provided in the other of the upright portions. The bolt means inserted into the hole is screwed into a hole provided in the other of the projecting parts, so that the pair of upright parts can be fixed to the pair of projecting parts, and the bolt means When the bolts are loosened, the pair of uprights can rotate with respect to the pair of protrusions, and when the bolt means is tightened, the pair of uprights rotate with respect to the pair of protrusions. 2. The antenna mounting device according to claim 1, wherein the antenna mounting device is disabled.   Bolt means inserted into an insertion hole provided in one of the pair of protrusions is screwed into a hole provided in one of the pair of upright portions and formed in the other of the upright portions. The bolt means inserted through the inserted through hole is screwed into a hole provided in the other of the projecting parts, so that the upright part can be fixed to the projecting part, and the both bolts When the means is loosened, the pair of uprights can rotate with respect to the pair of protrusions, and when the both bolt means are tightened, the pair of uprights are relative to the pair of protrusions. 2. The antenna mounting device according to claim 1, wherein the antenna mounting device is mounted so as not to rotate.   A boss projecting in a cylindrical shape provided on one surface of the pair of projecting parts is fitted into a cylindrical fitting recess provided in one of the pair of upright parts, and The bolt means inserted into the insertion hole formed in the other of the standing parts is screwed into the hole provided in the other of the protruding parts so that the rising part can be fixed to the protruding part. When the bolt means is loosened, the pair of upright portions can rotate with respect to the pair of protrusions, and when the bolt means is tightened, the pair of upright portions become the pair of protrusions. The antenna mounting device according to claim 1, wherein the antenna mounting device is mounted so as not to rotate with respect to the portion.   A convex portion projecting in a conical shape provided on one surface of the pair of projecting portions is fitted into a conical concave portion provided in one of the pair of upright portions, and The bolt means inserted into the insertion hole formed in the other of the standing parts is screwed into the hole provided in the other of the projecting parts, so that the pair of standing parts become the pair of projecting parts. When the bolt means is loosened, the pair of upright portions can rotate with respect to the pair of protrusions, and when the bolt means is tightened, the pair of upright portions can be fixed. The antenna mounting device according to claim 1, wherein the antenna mounting device is non-rotatably attached to the pair of protrusions. A receiving metal fitting is arranged so as to face the fixing tool, and a nut means is screwed onto the fixing tool and a U-shaped bolt fitted to the receiving metal fitting so that a gap between the fixing tool and the receiving metal fitting is obtained. The antenna mounting device according to claim 1, wherein the antenna mounting device is fixed to the supported object sandwiched between the two.

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