JPH0222562B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an antenna support device, and more particularly to an antenna support device that can finely adjust the horizontal orientation of an antenna.

[Prior art]

2. Description of the Related Art Conventionally, antenna support devices have been used in which the orientation of an antenna, for example, an antenna with a wireless device, can be adjusted vertically and horizontally. 8th
9 and 9 show the structure of a conventional general antenna support device. Referring to these figures, this support device includes a cylindrical column 1 extending in the vertical direction, and an outer cylinder 2 is fitted to the upper end of the column 1 so as to be horizontally rotatable. A vertical adjustment device 3 is attached to the upper part of the outer cylindrical body 2 for vertically adjusting the direction of an antenna with a wireless device (not shown). A ring 4 is fitted around the outer periphery of the column 1, and the ring 4 is fixed to the column 1 by a set screw 5 that is threaded into a screw hole in the ring 4. A fixed arm 6 and a movable arm 7 extending radially outward are attached to the ring 4 and the outer cylinder 2, respectively. A bolt 9 is rotatably held in a holder 8 held by the fixed arm 6, and this bolt 9 is screwed into a nut member 10 held by the movable arm 7. The outer cylindrical body 2 is fixed to the column 1 by a set screw 11 that is screwed into a screw hole in the outer cylindrical body 2.

[Problem that the invention seeks to solve]

In the conventional antenna support device having the above configuration, by rotating the bolt 9 relative to the nut member 10, the outer cylinder 2 can be rotated horizontally, that is, around the central axis of the support column 1, together with the antenna. However, the bolt 9 and nut member 10
The range of fine adjustment due to the work and nut parts 1
There was a drawback that it was necessary to return the screwing position of the bolt 9 to the initial position. Furthermore, in the antenna support device having the above configuration, the outer cylinder body 2 and the ring 4 are fixed to the support column 1 by pressing the setscrews 5 and 11, which are threaded into their screw holes, against the outer peripheral surface of the support column 1. Therefore, it was difficult to obtain sufficient fixing strength, and the fixation became uncertain.

Therefore, the antenna support device is capable of easily fine-tuning the horizontal direction of the antenna over 360 degrees, and can also securely fix the antenna in the horizontal direction, without complicating its structure. There is a need for an antenna support device that can achieve fine tuning and fixation of the antenna.

(Means for Solving the Problems) As a means for solving the above problems, according to the present invention, the lower end of the movable support connected to the antenna is attached to the upper end of the fixed support fixed to the installation surface. Fitting of a fitting protrusion with a cylindrical recess formed around an axis in the vertical direction and separable from each other, and opposing flanges extending radially from the recess 24a and the fitting protrusion 27, respectively. a worm wheel rotatable by collision with a surface, fixed to the center of the fitting protrusion and protruding beyond the fitting protrusion; and a shaft provided at an eccentric position orthogonal to the axis in the recess. is provided with a worm gear which can be rotated from the outside, and a fastening means capable of fastening and fixing the rotation of the flange in the axial direction at an arbitrary position, and with the fastening means in a relaxed state, rotation of the shaft of the worm gear causes the worm gear to rotate. There is provided an antenna support device characterized in that the movable support body is rotated by mutual rotation around the axis of a worm wheel that meshes with the antenna support body.

[Effect]

In the antenna support device according to the present invention, by rotating the worm gear using the shaft, the worm wheel can be rotated at a reduced speed, so that the horizontal direction of the movable support can be finely adjusted. Since the worm gear can rotate the worm wheel over 360 degrees, the movable support can be finely adjusted over 360 degrees. In addition, since the facing surfaces of the flanges provided on the fixed support and the movable support can be brought into contact with each other and fastened and fixed in the vertical axis direction by the fastening means, the movable support can be firmly attached to the fixed support. Moreover, it can be fixed securely.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 7 of the drawings.

1 to 5 show one embodiment of the present invention. First, referring to FIG. 2, the antenna with wireless device 20 includes a wireless device main body 22 integrally provided at the rear of a reflecting mirror 21. As shown in FIG. The antenna support device 23 includes a fixed support body 24 fixed to the installation surface. A movable support 25 is provided at the upper end of the fixed support 24, and the movable support 25 is connected to the antenna 20 via a vertical adjustment device 26 for vertically adjusting the orientation of the antenna 20. .

Referring to FIGS. 1 and 3, the fixed support 2
A cylindrical recess 24a extending along the vertical axis X is provided at the upper end of the movable support 25, and a fitting protrusion rotatably fits into the recess 24a at the lower end of the movable support 25. 27 are provided. By fitting these recesses 24a and the fitting protrusions 27,
The movable support 25 is horizontally rotatable relative to the fixed support 24.

A worm wheel 28 is arranged in the recess 24a of the fixed support 24 coaxially with the recess 24a, and the worm wheel 28 is fixed to the fitting projection 27 by a set screw 29. Recess 24a
A recess 30 is provided on the side surface of the recess 30 , and a worm gear 31 that meshes with the worm wheel 28 is disposed within the recess 30 . Worm gear 3
1 are provided with washers 32 and 33 for adjusting the gap, respectively. Two holes 34 and 35 opening into the recess 30 are coaxially provided in the fixed support 24, and a shaft 36 extending through the worm gear 31 and washers 32 and 33 is rotatably provided in these two holes 34 and 35. Possibly supported. The worm gear 31 is fixed to the shaft 36 by a set screw 37. Both ends of the shaft 36 protrude from the fixed support 24 through the holes 34 and 35. One end of the shaft 36 has a large diameter head 38
A groove 39 for mounting a retaining ring 40 is provided on the other end side of the shaft 36. The shaft 36 is prevented from coming off from the holes 34 and 35 by a retaining ring 40 attached to the groove 39 and the head 38. A handle or the like for rotating the shaft 36 may be connected to the head 38 of the shaft 36, but here a groove 41 is provided for engagement with a tool such as a screwdriver.

The fixed support 24 and the movable support 25 are each integrally provided with flanges 42 and 43 that abut each other, and the flanges 42 and 43 are fastened in the direction of the axis X between the flanges 42 and 43. Fastening means are provided for securing. here,
The fastening means includes eight screw holes 44 provided in the flange 42 on the fixed support side and extending parallel to the axis X.
and four elongated holes 45 provided in the flange 43 on the movable support side and extending along the circumference centered on the axis X; Each elongated hole 45 is formed so as to overlap with any one of the screw holes 44 in any rotational position of the movable support 25.

FIG. 4 shows a method of assembling the worm gear 31 and shaft 36 in the antenna support device. As shown in this figure, the worm gear 31 is inserted into the recess 30 together with the washers 32 and 33, and then the shaft 36 is inserted into the fixed support 24.
These parts can be easily removed by passing them through the hole 34 from the outside, inserting them into the washers 32, 33 in the recess 30 and the worm gear 31, passing them through the hole 35, and installing the retaining ring 40 in the groove 39 of the shaft 36. can be assembled into.

FIG. 5 shows a method of assembling the fixed support 24 and the movable support 25. A worm wheel 28 is fixed to the movable support 25 in advance,
Further, a worm gear 31 is attached to the fixed support body 24 in advance.
etc. are installed. For this reason, the movable support 2
It is difficult to insert the worm wheel 28 on the 5th side into the recess 24a on the fixed support 24 side in the direction of the axis X because of the interference of the gear. However, as shown in this figure, if the worm wheel 28 is inserted into the recess 24a with the movable support 25 tilted, the assembly can be completed without any problem.

In the antenna support device having the above configuration, by rotating the worm gear 31 using the shaft 36, the worm wheel 28 can be rotated at a reduced speed.
The horizontal direction of the antenna 20 connected to the antenna 20 can be finely adjusted. And Worm Gear 3
1 allows the worm wheel 28 to be rotated through 360°, so that the antenna 20 connected to the movable support 25 can be finely adjusted over 360°. Further, when the bolt 46 is tightened, the flanges 42 and 43 provided on the fixed support 24 and the movable support 25 are fastened in a state that they abut each other, so a large fastening force is obtained and reliable fixation is achieved. be able to do it. No matter which rotational position the movable support 25 is in, the elongated hole 45
overlaps with any of the screw holes 44, so that the movable support 25 can be fixed to the fixed support 24 at any rotational position.

Since the worm wheel 28 and the worm gear 31 are arranged in a sealed space between the fixed support 24 and the movable support 25, it is possible to prevent dust and moisture from adhering to the worm wheel and maintain smooth movement over a long period of time. become.

FIG. 6 shows another embodiment of the invention. In this figure, the same components as in the above embodiment are given the same reference numerals as in the above embodiment. Here, the recess 24a is provided at the lower end of the movable support 25, and the fitting protrusion 27 that rotatably fits into the recess 24a is attached to the fixed support 25.
It is provided at the upper end of the. Worm wheel 2
8 is fixed to the fitting protrusion 27 in the recess 24a of the movable support 25, and the worm gear 31 is disposed in a recess 30 provided on the side surface of the recess 24a and is meshed with the worm wheel 28. A shaft 36 for rotating the worm gear 31 is rotatably supported on the movable support 25 and fixed to the worm gear 31 in the same manner as in the previous embodiment. Head 38 of shaft 36
protrudes to the outside of the movable support 25.

The other configurations are the same as those of the above embodiment. Therefore, in this embodiment as well, the same direction adjustment effect and fixing effect as in the above embodiment can be achieved. In particular, in this embodiment, since the recess 24a is provided above the fixed support 24, the recess 24a
There is an advantage that rainwater etc. will not enter and accumulate in the interior 4a.

In this embodiment, the positions of the worm gear 31 and shaft 36 do not change relative to the antenna 20, so if the worm gear 31 and shaft 36 are placed behind the antenna 20, the direction of the antenna 20 will be changed. This has the advantage of making the direction adjustment work easier.

FIG. 7 shows another embodiment of the fastening means according to the present invention. Here, the fastening means includes a plurality of screw holes 47 provided in the flange 42 on the fixed support 24 side radially outward of the flange 43 on the movable support 25 side and extending parallel to the rotational axis of the movable support 25. , bolts 48 that are screwed into each screw hole 47 , and clamp claws 49 that are held by each bolt 48 . Clamp claw 49 is bolt 4
The flange 43 is fixed to the flange 4 by the tightening force of 8.
2 in the direction of the axis of rotation of the movable support 25. Also in this embodiment, the movable support 25
can be firmly and reliably fixed to the fixed support 24 at any rotational position.

Although the illustrated embodiments have been described above, the present invention is not limited to the embodiments described above, and various changes may be made to each component within the scope of the invention described in the claims. Can be done.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, by rotating the worm gear with the shaft, the worm wheel can be rotated at a reduced speed. can be fine-tuned,
Moreover, since the worm gear can rotate the worm wheel over 360 degrees, the antenna can be easily finely adjusted over 360 degrees. In addition, when fixing the movable support to the fixed support, the flanges provided on the fixed support and the movable support are fastened in the vertical axial direction with the fastening means with their opposing surfaces abutting each other. Therefore, the movable support can be firmly and reliably fixed to the fixed support. Therefore, it is possible to provide an antenna support device that allows the horizontal direction of the antenna to be easily finely adjusted over 360 degrees, and that can be reliably fixed in the horizontal direction.

Further, according to the present invention, the fixed support and the movable support are separably fitted, and can be rotated and fastened by abutment with the opposing surfaces of the flanges between them, so that the structure is improved. is extremely simple and the fixed support can be easily assembled. That is, since the antenna support device according to the present invention is easy to disassemble and assemble, it is not only easy to maintain and manage, but also easy to move.

[Brief explanation of drawings]

FIG. 1 is a side view of a partial vertical cross-section of an essential part of an antenna support device showing an embodiment of the present invention, FIG. 2 is a side view showing a state in which the antenna support device shown in FIG. 1 and the antenna are connected, and FIG. 1 is a cross-sectional view of the antenna support device shown in FIG. 1 taken along line - in FIG. The figure is a partial cross-sectional side view showing a method of assembling the fixed support and movable support of the antenna support device shown in FIG. 1, and FIG. 6 is a partial cross-section diagram of the antenna support device showing another embodiment of the present invention. Part side view, No. 7
The figure is a cross-sectional view of the main part of the antenna support device showing another aspect of the fastening means in the device of the present invention, FIG. 8 is a partial cross-sectional side view of the main part showing the structure of the conventional antenna support device, and FIG. FIG. 2 is a plan view of main parts of the antenna support device shown in FIG. 24... fixed support body, 24a... recess, 25...
...Movable support, 27... Fitting protrusion, 28... Worm wheel, 30... Recess, 31... Worm gear, 36... Shaft, 42, 43... Flange, 44... Screw hole, 45... Length Hole, 46...bolt.

Claims (1)

[Claims] 1. The upper end of the fixed support 24 fixed to the installation surface and the lower end of the movable support 25 connected to the antenna are formed around a vertical axis and have a cylindrical shape that can be separated from each other. The fitting between the recess 24a and the fitting protrusion 27 and the abutment between the recess 24a and the opposing surfaces of the flanges 42 and 43 extending radially from the fitting protrusion 27 enable rotation. A worm wheel 28 is fixed to the center of the mating projection 27 and protrudes beyond the mating projection 27, and a shaft 36 is provided at an eccentric position perpendicular to the axis in the recess 24a and can be rotated from the outside. The worm gear 31 and the flanges 42, 4
Fastening means 44, 45, 46; 47, 48, which can be fastened and fixed in the axial direction at any rotational position of
49, and the fastening means 44, 45,
46; With 47, 48, and 49 in a relaxed state, rotation of the shaft 36 of the worm gear 31 rotates the movable support 25 by mutual rotation around the axis of the worm gear 31 and the worm wheel 28 meshing with the worm gear 31. Features: Antenna support device. 2. Claim 1, characterized in that the fixed support 24 is provided with a recess 24a and a worm gear 31, and the movable support 25 is provided with a fitting protrusion 27 and a worm wheel 28. Antenna support device as described. 3 The fixed support 25 is provided with a fitting protrusion 27 and a worm wheel 28, and the movable support 2
5. The antenna support device according to claim 1, wherein a recess 24a and a worm gear 31 are provided in the antenna support device 5. 4. The fastening means is provided in one of the flanges 42, 43 and has a plurality of screw holes 44 extending parallel to the axis, and the other flange is provided with a plurality of screw holes 44 and extends along a circumference centered on the axis. It consists of a plurality of elongated holes 45 and a plurality of bolts 46 that pass through each elongated hole 45 and are screwed into one of the screw holes 44, and the movable support body 25 is in any rotational position. 2. The antenna support device according to claim 1, wherein each of the elongated holes 45 is formed to overlap with one of the screw holes 44. 5. The fastening means is provided in one of the flanges 42, 43 on the radially outer side of the other flange, and includes a plurality of screw holes 47 extending parallel to the axis, and bolts 48 screwed into the screw holes 47.
and a clamp claw 49 which is held by the bolt 48 and which presses the other flange against the one flange in the direction of the axis by the tightening force of the bolt 48. The antenna support device according to item 1.