JPH0513042Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a parabolic antenna for satellite communication, and more particularly to an elevation adjustment mechanism for directing the elevation angle of the parabolic antenna toward a satellite.

[Conventional technology]

Conventionally, as known from Utility Model Application Publication No. 60-55102, this type of elevation angle adjustment mechanism has been developed by fixing a mounting base frame consisting of a center piece and side pieces to the upper end of a column, and A support frame is placed directly above the through hole provided at the rear end, a vertical movement frame is suspended from the center piece through a bolt for fine adjustment of the elevation angle, and a support tube is passed through the vertical movement frame so that both ends thereof are Attach the mounting plate to the mounting base by aligning it with the long holes provided on both end pieces of the mounting base frame, inserting the bolt rods into the support cylinder and the long holes, and further inserting them into the through holes provided on the mounting plate. It is assembled to the frame to form a fine adjustment mechanism for the elevation angle, and the mounting plate has
At the rear part, a plurality of through holes are provided on the same circumference centered around the insertion hole of the bolt rod where the support tube and the mounting base frame are assembled, and screws are inserted and fixed into any of these through holes. This allows selective rough adjustment of the elevation angle.

[Problem that the invention attempts to solve]

However, in the conventional elevation angle adjustment mechanism as described above, the antenna is moved using an ordinary bolt and fixed using a long hole. This method has the disadvantage that it cannot be used for parabolic antennas subject to large wind pressures, as it is necessary to stop the movement of the antenna due to wind pressure.

[Means for solving problems]

The elevation angle adjustment mechanism of the parabolic antenna according to the present invention is attached to the back side of the parabolic reflector at intervals on the left and right, and a rotation pin hole for inserting a pin is drilled on the back side of each side. It is sandwiched between two outer brackets that have multiple angle adjustment holes drilled at intervals on the same circumference with the pin hole in the center, and the lower surface is attached to the pole in a horizontal state. a lower bracket which is fixed and whose one end is pivotally supported by the pin, and whose other end supports a lower block that is rotatable about an axis parallel to the pivot support; The block is arranged opposite to the bracket, one end is pivotally supported by the pin together with the lower bracket, the other end supports an upper block which is rotatable about an axis parallel to the pivot, and the pivoted position is an upper bracket that is bolted to a selected one of the plurality of holes for angle adjustment at a position spaced from the upper bracket by the circumferential distance from the upper bracket, and is bolted to a selected one of the plurality of holes for adjusting the angle, and allows rough adjustment of the opening angle between the upper bracket and the lower bracket; The present invention is characterized in that coupling adjustment means is provided between the upper block and the lower block for finely adjusting the hearing angle between the upper bracket and the lower bracket.

[Example of idea]

Next, a mechanism for adjusting the elevation angle of a parabolic antenna according to the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the structure of an embodiment of the present invention. In this figure, 1 and 2 are left and right brackets, 5 is an upper bracket, 6 is a lower bracket, 11a and 11b are blocks, and 17 is a pole. The left and right brackets 1 and 2 each have a rotation pin hole 3 and a plurality of angle adjustment holes 4 spaced apart on the same circumference around the pin hole 3. The upper bracket 5 and the lower bracket 6 have brackets 1 and 1 on the left and right, respectively.
2, and the brackets 1 and 2, the upper bracket 5, and the lower bracket 6 are rotatably connected to each other through a pin 9 inserted into the rotation pin hole 3. has been done.

The upper bracket 5 has a bolt 1 inserted into a hole 7 made in the folded portion thereof and an arbitrary one of the plurality of holes 4 made in the left and right brackets 1 and 2.
By inserting 0, the angle between the brackets 1, 2 and the upper bracket 5 can be set arbitrarily. This mechanism allows coarse adjustment of the elevation angle of the parabolic antenna.

Blocks 11a and 11b are rotatably coupled between the upper bracket 5 and the lower bracket 6 by coupling adjustment bolts 12, nuts 13, 14, and lock nuts 15, 16, respectively.
Therefore, loosen lock nut 15 and tighten nut 1.
3 and 14, the opening angle between the upper bracket 5 and the lower bracket 6 can be changed, thereby making it possible to finely adjust the elevation angle of the parabolic antenna. After this fine adjustment,
It is firmly fixed by tightening the lock nut 15.

Note that the lower bracket 6 is kept horizontal, and its lower part is fixed to a pole 17. Further, the left and right brackets 1 and 2 are fixed to the back surface of the parabolic reflecting mirror 18, as seen in the side view of FIG.

[Effect of idea]

As is clear from the above explanation, according to the present invention, the elevation angle of the parabolic antenna can be finely adjusted using a simple and strong fastening mechanism using ordinary bolts. The effect obtained when applied to parabolic antennas subjected to wind pressure is significant.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the structure of an embodiment of the present invention, and FIG. 2 is a side view showing the overall appearance of a parabolic antenna to which the embodiment of FIG. 1 is applied. In the figure, 1 and 2 are brackets, 3 is a pin hole, 4 is a hole, 5 is an upper bracket, 6 is a lower bracket, 7 and 8 are folded parts, 9 is a pin, 10 is a fixing bolt, and 11a and 11b are blocks. , 12 is a bolt, 13 and 14 are nuts, 15 and 16 are lock nuts, 17 is a pole, and 18 is a parabolic reflector.

Claims (1)

[Scope of Claim for Utility Model Registration] A parabolic reflector is attached to the back side of the mirror at intervals on the left and right, and a rotation pin hole for inserting a pin is drilled in each back side, and the pin hole is centered at the center of the parabolic reflector. It is sandwiched between two outer brackets with multiple angle adjustment holes drilled at intervals on the same circumference, and the lower surface is fixed to a pole in a horizontal state, with one end a lower bracket which is pivotally supported by the pin and whose other end supports a lower block which is rotatable about an axis parallel to the pivotal support; and a lower bracket which is also sandwiched between the outer bracket and faces the lower bracket one end is pivotally supported by the pin together with the lower bracket;
A rotatable upper block is supported at the other end by an axis parallel to the pivot support, and a selection from among the plurality of holes for adjusting the angle is provided at a position separated from the pivot support position by the circumference distance. an upper bracket bolted to the lower bracket to allow coarse adjustment of the opening angle between the upper and lower brackets; A mechanism for adjusting the elevation angle of a parabolic antenna, characterized in that it is provided with coupling adjustment means for finely adjusting the angle.