JPH0411097Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting column for a parabolic antenna for receiving satellite broadcasting. Due to the shape of a parabolic antenna for receiving satellite broadcasting, the wind pressure differs greatly between the front and the sides. Furthermore, when installing a parabolic antenna, it is necessary to determine the azimuth and elevation angles and to minimize the error in the directivity angle in order to ensure reception quality. requires extremely high precision.

Therefore, in order to keep the direction of the parabolic antenna accurately fixed for a long period of time even under the influence of wind pressure, etc., it is necessary to use a pole for antenna mounting that is stronger than necessary. transportation,
Workability and other handling become difficult, the cost becomes high, and, for example, if the pillar material has a circular cross section, there is a risk of slight rotation in the circumferential direction when the antenna is attached.

The present invention was developed in view of these problems, and uses a pillar material with an irregular cross-sectional shape, and mounts the antenna with the front of the parabolic antenna oriented in the direction of its bending rigidity. The present invention provides a satellite broadcast receiving antenna column whose foundation can be constructed in consideration of the direction of the antenna.

The embodiments of the present invention will be explained with reference to the drawings: 1
is a pillar material for mounting an antenna, and Fig. 3 shows a hollow elliptical cross section with a major axis and a minor axis, and Fig. 4 shows a pillar material with a width between the front and rear surfaces larger than the width between both sides. Figures 5 and 6 show pillars with irregular cross-sections such as grooves and I-shapes with flanges on the front and rear sides, respectively. The direction in which the bending rigidity (strength) is large, that is, the long diameter direction in Fig. 1, and the front (front) direction where the wind receiving area of the parabolic antenna 2 is maximum is in the longitudinal direction in Figs. 2 to 4. A parabolic antenna 2 is attached to the tip of a pillar 1 using an appropriate fixing fitting such as a U-bolt or a flange member.

3 is a support plate in which the lower end surface of the pillar material 1 is fixed integrally to the center of the upper surface by means such as welding or screwing;
It is formed into a rectangular shape that is long in the front and back direction, and a plurality of mounting holes 4 and 5 are bored at both the front and rear ends.

Reference numeral 6 denotes a driving anchor formed into a cross-shaped cross section by the front and rear wing pieces 7, 7 and both side wing pieces 8, 8, and the width dimension W between the both side end surfaces of both side wing pieces 8, 8 is determined by
It is formed to be larger than the width W between the front and rear end surfaces, and the lower end is formed into a sharp end 9.

Reference numeral 10 denotes a mounting plate that is integrally fixed to the upper end surface of this anchor 6 by welding or the like, and is attached to the support plate 3 of the pillar material 1.
It is formed into a rectangular shape that is approximately the same size and long in the front and back direction, and has a plurality of bolts 1 at its front and rear ends.
1 and 12 are erected and fixed.

With this configuration, the anchor 6 was driven into the ground with the protruding direction of the front and rear wing pieces 7, 7 having a short protruding width facing in the longitudinal direction, that is, in the front direction of the parabolic antenna 2 to be installed. Later, mounting plate 1
The lower end support plate 3 of the pillar material 1 is superposed on top of the bolt 1.
Mounting holes 4 and 5 are inserted through holes 1 and 12, and nuts 13 are screwed to vertically erect and fix the column 1.

Next, the parabolic antenna 2 is attached to the upper end of the pillar 1, with its front facing in the front-back direction where the bending rigidity of the pillar 1 is large, and the angle of elevation etc. is adjusted.
It is firmly fixed using an appropriate metal fitting 14 such as a bolt.

As described above, in the present invention, the upper end of the column 1 having an irregular cross section such as an ellipse, a rectangle, or an I-shape is provided.
The parabolic antenna can be mounted with its front facing in the direction of greater bending rigidity, and a rectangular support plate 3 whose dimensions are elongated in the direction of greater bending rigidity is integrally fixed to the lower end of this pillar 1. ,moreover,
A driving anchor 6 having the same shape as the support plate 3 is attached to the upper end of a driving anchor 6 formed into a cross-shaped cross section by front and rear wing pieces 7, 7 and both side wing pieces 8, 8 which are wider than the front and rear wing pieces 7, 7. The bending rigidity of the pillar material 1 is limited because it relates to a receiving antenna pillar for satellite broadcasting which is constructed by fixing the plate 10 and integrally connecting the support plate 3 to the mounting plate 10 with bolts and nuts. Parabolic antenna 2 with a large wind receiving area using the directionality of
Since the front side of the parabolic antenna 2 is mounted facing the same direction, the parabolic antenna can always be installed accurately even if it is affected by wind pressure, etc. Even if the thickness of 1 is made small, there will be no problem,
Therefore, it is possible to reduce the amount of materials, minimize the overall size and weight, and improve workability and handling.

Furthermore, since the pillar material 1 has an irregular cross section, even if the parabolic antenna 2 tries to rotate in the circumferential direction, it can be strongly prevented, and therefore, the azimuth angle, elevation angle, etc. can be maintained accurately at all times. It is something.

In addition, since the driving anchor 6 on which the pillar material 1 is erected has a cross-shaped cross section, the driving resistance against the ground is extremely small, and it can be driven accurately and easily.
Even if the column 1 tries to rotate in the circumferential direction due to wind pressure, the front and rear wing pieces 7, 7 and the side wing pieces 8, 8, which form a cross shape, are held by the ground, and the column 1 is rotated in the circumferential direction. It is possible to form a base portion that firmly prevents rotation.

Further, the pillar material 1 and the driving anchor 6 are connected by overlapping and integrating the support plate 3 and the mounting plate 10, which are formed long in the direction of the bending rigidity, and the anchor 6 is connected to its front and rear wings. piece 7,7
Since the wing pieces 8, 8 on both sides are formed wider than the above, the wind pressure acting on the parabolic antenna 2 can be firmly received by the anchor 6 driven into the ground via the support plate 3 and the mounting plate 10. Therefore, the parabolic antenna 2 can be stably erected for a long period of time.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention: Fig. 1 is a side view, Fig. 2 is a plan view, Fig. 3 is a simplified perspective view of the main parts, and Figs. FIG. 7 is a perspective view of an anchor. 1... Pillar material, 2... Parabolic antenna, 3...
Support plate, 6... Driving anchor.

Claims (1)

[Scope of utility model registration request] A parabolic antenna can be attached to the upper end of a pillar 1 having an irregular cross section such as an ellipse, a rectangle, an I-shape, etc. with the front facing in the direction of the pillar 1 having the highest bending rigidity, and the lower end of the pillar 1 A rectangular support plate 3 whose dimensions are longer in the direction of greater bending rigidity is integrally fixed to the front and rear wing pieces 7, and both side wing pieces 8, 8, which are wider than the front and rear wing pieces 7, 7, are integrally fixed to each other. Driving anchor 6 formed into a cross-shaped cross section by
A satellite broadcast receiving antenna column is constructed such that a mounting plate 10 having the same shape as the support plate 3 is fixed to the upper end of the support plate 3, and the support plate 3 is integrally connected to the mounting plate 10 with bolts and nuts.