JPS6336728Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a support for a pipe-shaped antenna column that supports an antenna, particularly an antenna that pivots due to its directivity.

In this type of antenna, the sides of the antenna support have conventionally been fixed only with metal fittings. However, since the center of the antenna support cannot be accurately projected and supported, the antenna swings due to eccentricity during rotation of the antenna, resulting in an undesirable function of the antenna and the antenna rotating machine.

In view of the above-mentioned circumstances, it is an object of the present invention to provide an antenna support support that is capable of self-centering and can reliably support even if the pipe has a certain width of outside diameter.

To explain the present invention, the present invention supports a pipe-shaped antenna support, and includes a support part that supports the lower end surface of the antenna support, and a clamping part that supports the outer peripheral surface of the antenna support from the sides.

The support portion is a support plate having a tapered portion that supports the weight of the antenna by coming into contact with the lower end surface of the antenna support column, that is, the lower end circumferential surface. The tapered portion can be convex and inserted into the pipe, or it can be concave and the pipe can be inserted into the concave tapered portion to stand vertically.

The clamping portion is composed of a plurality of clamping pieces divided into two or three equal parts, for example, centered on the axis of the antenna support, and the plurality of clamping pieces are tightened to press the clamping pieces in the axial direction of the antenna support. means and
and means for fixing the clamping piece to the support plate at the clamped position in order to firmly hold the clamping piece in the clamped position.

The above-mentioned tightening means may be a method in which each clamping piece is connected with a bolt or the like and then tightened, or each clamping piece is formed into a conical shape when combined, and has a conical inner surface that fits this. It is also possible to tighten a combination of nuts.

The embodiments shown in the drawings will be described below.

A is a support part that receives the lower end surface C1 of the pipe-shaped antenna support C1 and supports its weight, B is a clamping part that clamps the side surface of the antenna support, and M is a drive motor that rotates the antenna according to the directivity of the antenna. be.

The support part A has a tapered piece around a cylindrical part 11 provided at the center of the support plate 1 as a tapered part so that it can be inserted into a hole in the lower end surface C1 of the pipe-shaped antenna support and automatically centered. It has a plurality of 12. Of course, instead of providing the tapered piece 12, the columnar part 11 itself may be formed into a tapered shape.
A bolt located at the center of the cylindrical portion 11 is used to connect the shaft of the drive motor M to the support plate 1. A pair of parallel guide protrusions 14, 14 are provided on both sides of the support plate 1, and a clamping piece 2, which will be described later, is provided.
In addition to providing guidance when tightening the support plates 1 and 21, it also serves to bear part of the torque when the support plate 1 is pivoted. Screw holes 15, 15 are provided beside the pair of guide protrusions 14, 14, and the clamping pieces 2 are provided with screw holes 15, 15.
This is to firmly maintain the tightened state of Nos. 1 and 21.

The clamping part B consists of clamping pieces 21, 21 that are divided into two parts about the axis of the antenna support C. Both clamping pieces 21, 21 are made symmetrically, and have a substantially V-shaped groove 22 in the center for accommodating and clamping the antenna support C, and the surface of the groove 22 has a groove 22, which is not necessarily required, but the antenna From the viewpoint of preventing slippage when the support is clamped, a large number of thin protrusions 23 are provided to improve the effect. Lateral flanges 24, 24 extend along the antenna support C on the sides of the clamping pieces 21, and bolts 25 serving as tightening means are screwed into the horizontal flanges to secure the clamping pieces 21, 21 to the antenna. Screw holes 26, 26 are provided for pressing against and clamping the support column C. On the other hand, a bottom flange 27 extends below the clamping piece 21, and the bottom flange 27 includes the guide protrusion 1 described above.
Step portions 30, 30 are provided so as to be able to come into sliding contact with the guide ridges 14,
By tightening the bolt 25, it can be moved and the clamping force can be increased. The bottom flange 27 has a guide protrusion 14
Slide the upper part of the clamping piece 21 at a position with appropriate clamping force.
Elongated holes 28, 28 are provided above the screw holes 15, 15 of the support plate 1 so that the support plate 1 can be fixed to the support plate 1,
For this tightening, a bolt 29 as a fixing means,
29 are available.

Next, the assembly of the present invention having the above structure will be explained.

First, a pair of clamping plates 21, 21 are placed on the support plate 1,
The stepped portions 30, 30 are the guide protrusions 14 of the support plate 1,
14 so as to be in sliding contact with it. Then, as appropriate, bolts 25 and 29 are loosely screwed together. Therefore, at this time, the groove portion 2 of the pair of clamping plates 21, 21
2 and 22 is larger than the outer diameter of the antenna support C.

Next, in this state, the antenna support C is placed between the pair of clamping plates 21, 21 from above and lowered. Then, the lower end surface C1 of the antenna support C engages with the tapered piece 12, and its axis naturally coincides with the axis of the support plate 1, that is, the axis of the motor M. Next, the bolts 25, 25 of the pair of clamping plates 21, 21 are gradually tightened. Then, the V-shaped slope of the groove 22 (thin protrusion 23 for preventing slippage) grips the antenna support C with a strong force due to the wedge action, and its axis is firmly supported. And finally, the pair of clamping plates 21, 21
The work is completed by tightening the bolts 29, 29 in order to fix the clamping position on the support plate.

As described above, the present invention is configured so that the pipe-shaped antenna support is supported from below by a support plate having a tapered surface, and is supported from the side by tightening a plurality of divided clamping pieces. Centering occurs naturally, and its weight is supported by the support plate, and the clamping plate can be supported only by lateral force, ensuring sufficient strength, and also taking into consideration the outer diameter tolerance of the support pipe and, as the case may be, Therefore, even if the pipe has a slightly different diameter, the above effect can be fully exerted without being affected by the difference in outer diameter.In particular, there is no need to prevent swinging of the rotating antenna, and the motor of the antenna rotating machine The effects are remarkable, such as eliminating the load due to eccentricity applied to the shaft.

[Brief explanation of drawings]

FIG. 1 is a partially sectional perspective view showing an embodiment of the present invention. A... Support part, B... Holding part, C... Antenna support, C1... Lower end surface of antenna support, 1... Support plate, 12... Taper part (tapered piece), 21... Holding piece, 25... ...Tightening means (bolt), 29...
Fixing means (bolts).

Claims (1)

[Claims for Utility Model Registration] An antenna strut support that supports a pipe-shaped antenna strut and complies with the following requirements (a), (b), and (c). (a) a support part that supports the lower end surface of the antenna support;
It consists of a clamping part that clamps the outer peripheral surface of the antenna support from the sides. (b) The support section is comprised of a support plate having a tapered section that supports the weight of the antenna by coming into contact with the lower end surface of the antenna column. (c) The clamping portion is composed of a plurality of clamping pieces divided around the axis of the antenna support, and the plurality of clamping pieces include a tightening means for pressing the clamping pieces against the antenna support, and a clamping unit that presses the clamping pieces against the antenna support. and fixing means for fixing to the support plate to firmly maintain the tightened position.