JPS641765Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an antenna support device used when an antenna is supported by a support. More specifically, this invention relates to an antenna support device that allows the horizontal direction of the antenna to be adjusted in the supported state. It is related to the device.

In a conventional antenna support device, a part of the antenna is provided with an attachment, a U-shaped bolt is placed opposite the attachment, and the upper part of the support is inserted between the attachment and the U-shaped bolt to secure the support. When installing antennas that are tightened and fixed, the weight of the antenna must be supported by hand until the tightening is completed, which may be time-consuming or dangerous. There were flaws. In addition, when adjusting the horizontal direction of the antenna described above, the tightening must be loosened, so it is necessary to carry out the adjustment while supporting the weight of the antenna with your hand. It also had the disadvantage of being extremely poor.

Therefore, the present invention aims to eliminate the above-mentioned drawbacks and provide an antenna support device that can be attached to a support pole extremely quickly and safely, and can also be easily adjusted in horizontal direction. That is.

The drawings showing the embodiments of the present application will be described below.

1 is a support, the lower end of which is fixed to the ground or a building. 2 is a support device attached to the upper part of the support column 1, and 3 is an antenna supported by the support device. Although a parabolic antenna is shown as an example, other antennas may be used. The parabolic antenna 3 has a well-known configuration and includes a reflecting mirror 4, a supporting arm 5, a horizontal support rod 6, a wave receiving device 7, and the like. The wave receiving device 7 also includes a converter 8, a primary radiator 9, and the like.

Next, the support device 2 will be explained in detail.
Reference numeral 11 denotes a cylindrical body, which is sized to have an inner diameter slightly larger than the outer diameter of the column 1 so that the column 1 can be inserted therein. This cylindrical body 11 is composed of an upper member 12 and a lower member 13 that are relatively rotatable. First, in the upper member 12, a stopper 14 is formed in a shape to close the upper end of the upper member 12. Reference numeral 15 denotes an antenna support portion, which is fixed to the upper member 12 by welding means. Further, the reflector 4 of the antenna 3 is fixed to this support portion 15 with a set screw 16. A driven piece 17 is fixed to the upper member 12 by welding means. Next, in the lower member 13, 18 indicates a thick portion. The thick portion 18 may be formed by forming a part of the lower member 13 thickly or by welding a nut to the lower member 13. 19 is a screw hole, 20 is a fixture screwed into the screw hole 19,
Bolt is used as an example. 21, 21
denotes a support piece, each base part of which is interconnected by a connecting part 22, forming a U-shape as a whole. The base part and connecting part 2 of these support pieces 21
2 is fixed to the upper member 13 by welding means. Reference numeral 23 indicates a thick portion formed near the tip of the support piece 21. This thick portion 23 is formed in the same manner as the thick portion 18 described above. Reference numeral 24 indicates a screw hole, and reference numeral 25 indicates a screw rod for adjustment, and as is clear from FIGS. 3 and 4, the respective tips 25a and 25a are screwed into the screw holes 24 and 24, respectively, with their tips 25a and 25a facing each other. The driven piece 17 is positioned between them.

Next, we will explain how to use the above structure. First, the support device 2 is attached to the upper part of the support column 1. This attachment is carried out by placing the cylindrical body 11 over the upper part of the fixed column 1 and bringing it into the state shown in FIG. 2. Next, antenna support part 1
5, fix the antenna 3 with a set screw 16. Incidentally, the antenna 3 may be fixed to the support portion 15 before the support device 2 is attached to the support column 1. Next, the cylindrical body 11 is rotated about the support 1, and the antenna 3 is directed in a desired direction, that is, in a direction in which incoming radio waves can be received well.
In this operation, the stopper 14 comes into contact with the upper end of the support column 1, and the entire weight of the support device 2 and the antenna 3 is transferred to the support column 1.
Since the antenna 3 is supported by, for example, the reflector 4 of the antenna 3 can be easily held by hand and rotated around the support 1.

Next, when the direction of the antenna 3 is approximately determined as described above, the fixture 20 is rotated and its tip is pressed against the support 1 to fix the lower member 13 of the cylindrical body 11 to the support 1. After that, antenna 3
To fine-tune the direction of the antenna, use the adjustment screw on the side opposite to the direction in which you want to turn the antenna 3, for example, if you want to turn the antenna 3 to the right, turn the adjustment screw on the left side when looking from the back of the antenna 3. Loosen the rod 25. Thereafter, when the adjusting screw rod 25 on the opposite side is turned so that its tip 25a moves toward the left screw rod 25, the driven piece 17 moves toward the screw rod 25 on the left side.
is pushed by the tip 25a and moves toward the position shown by the solid line in FIG. As a result, the upper member 12 is rotated slightly to the right in the above case with respect to the lower member 13, and the antenna 3 can be directed in a desired direction. Once the antenna 3 is oriented in the desired direction in this way, the adjustment screw rod 25 on the left side
Tighten. That is, the tips 25a, 25a of the threaded rods 25, 25 are pressed against the driven piece 17. By doing this, rotation of the upper member 12 is completely prevented, and the antenna 3 is completely fixed in a state facing the desired direction.

Note that the relationship between the upper member 12 and the lower member 13 is relative, and the antenna support portion 15 may be attached to the lower member 13 and the fixture 20 may be attached to the upper member 12. Also, the driven piece 17 is connected to the lower member 13.
The supporting piece 21 and the adjusting threaded rod 25 may be attached to the upper member 12, respectively.

Next, FIG. 7 shows a different embodiment of the present invention, and shows an example in which the upper member can be preliminarily fixed to the support column. In the figure, reference numeral 31 indicates a thick portion, which is formed for reinforcing the upper member 12e. 32 is a screw hole, and 33 is a screw rod for fixing.

In the case of such a structure, the upper member 12e can be more firmly fixed to the support column 1e by tightening the threaded rod 33 after finely adjusting the horizontal direction as described above. I can do it. Therefore, even if the antenna 3e is a parabolic antenna as described above and a large wind pressure is applied to it, it can be firmly fixed to the support column. It should be noted that the same reference numerals as those in the previous figure are appended with an alphanumeric letter "e" for parts that are functionally the same or equivalent to those in the previous figure, and redundant explanations are omitted.

As described above, in this invention, (a) Since the upper part of the cylinder 11 is provided with the stopper 14, when attaching it to the column 1, the cylinder 11 is simply attached to the column 1 in a overlapping manner. The stopper 14 comes into contact with the upper end of the support column 1 and the support device can be temporarily supported there (the entire weight of the support device is supported by the support support 1), and the installation work can be carried out quickly and safely. There is.

(b) Moreover, when adjusting the horizontal direction of the antenna 3 after the above installation, since the weight is supported as described above, apply a slight force in the horizontal rotation direction to center the antenna 3 on the support 1. The antenna 3 can be directed in the direction in which the radio waves arrive by simply swinging the head, which has the effect of facilitating adjustment operations.

(c) Furthermore, after completing the swing adjustment as described above, the state can be fixed using the fixture 20, and in the fixed state (while ensuring that the direction of the antenna does not change due to wind, etc.) ) By turning the adjusting screw rods 25, 25 to move the driven piece 17, the above-mentioned swing direction can be finely adjusted, and there is also the effect that the antenna 3 can be directed in the direction of arrival of radio waves with great accuracy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a side view showing how the antenna is attached to the support column, FIG. 2 is a longitudinal cross-sectional view showing the relationship between the support support and the cylinder, and FIG. 3 is a view taken in the direction of the arrow. , FIG. 4 is a sectional view taken along the - line, FIG. 5 is a sectional view taken along the - line, FIG. 6 is a partial plan view showing an adjusted state, and FIG. 7 is a view similar to FIG. 2 showing a different embodiment. DESCRIPTION OF SYMBOLS 1... Strut, 11... Cylindrical body, 12... Upper member, 13... Lower member, 15... Antenna support part, 20... Fixture, 17... Driven piece, 21...
Support piece, 25...Adjustment screw rod.

Claims (1)

[Scope of utility model registration request] The upper part of the cylindrical body having an inner diameter into which the column can be inserted is provided with a stopper that prevents the cylindrical body inserted from below from slipping out upwardly, and the cylindrical body further includes: In an antenna support device comprising an antenna support part for supporting an antenna and a fixture for fixing a cylinder to the pillar, the cylinder has an upper member and a lower member that are rotatable relative to each other. The antenna support section is divided into two parts, one of which is provided with the antenna support part, and the other with the fixing tool, and one of the two members is spaced apart from each other in the lateral direction. Two supporting pieces are provided in parallel with each other and protrude from each other, and each of the supporting pieces has a threaded rod for adjustment screwed therein so that each tip of the threaded rod faces each other. An antenna support device characterized in that a driven piece is provided protruding from the other of the two members, and the driven piece is positioned between the tips of the adjusting screw rod.