JPH0220901A - Knocked-down antenna reflecting mirror - Google Patents

Abstract

PURPOSE:To easily assemble the title reflecting mirror by a manipulator by constituting the mirror so that one piece of guide pin for determining a relative direction to a primary mirror of a split mirror is provided per one piece of split mirror, the split mirror executes successively translation, rotation and translation to the primary mirror and executes positioning, and the primary mirror and each split mirror are fixed by a latch. CONSTITUTION:A split mirror 2 has a guide pin 4. This guide pin 4 is inserted into a guide hole 3. That is, when the guide pin 4 is inserted into the guide hole 3 to some extent, and a relative direction to a primary mirror 1 of the split mirror 2 is determined except a rotational position in the periphery of an axis of the guide pin 4, when the split mirror 2 is rotated to a prescribed rotational position, and furthermore, the split mirror 2 is moved to the primary mirror 1, the primary mirror 1 and the split mirror 2 are fixed by an action of each latch pin 5 and each latch mechanism 6, and also, each split mirror 2 is fixed. In such a way, the primary mirror 1 and the split mirror 2 are fixed by a strong drag against the direction for separating each of them.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a prefabricated antenna reflector, and particularly to a prefabricated antenna reflector used in outer space.

[Conventional technology]

When installing a large reflector antenna, such as a parabolic antenna, in space, the parabolic reflector is divided into a central mirror and multiple split mirrors surrounding the primary mirror, each of which is transported to space. It is considered to be assembled. This assembly will be performed remotely using a manipulator.

FIG. 2 is a partially exploded perspective view of an example of a prefabricated antenna reflector that has been conventionally proposed as suitable for such a construction environment.

The conventional example shown in FIG. 2 is divided into seven parts, one primary mirror 7 and six divided mirrors 8. Each split mirror 8 is provided with two guide bins 4 and a latch mechanism 6 on a surface that contacts the primary mirror 7. On the other hand, the primary mirror 7 is provided with a guide hole 3 for receiving each guide bin and a latch pin 5 corresponding to each latch mechanism 6. Further, on both side surfaces of each split mirror 8 (surfaces in contact with adjacent split mirrors 8), a latch pin 5 is provided on one side, and a latch mechanism 6 is provided on the other side.

When the tips of the two guide pins 4 of the split mirror 8 are inserted into the guide holes 3 of the primary mirror 7 and the split mirror 8 is further moved toward the primary mirror 7, the primary mirror is moved by the action of the guide pins 4 and the guide holes 30. The relative direction of the divided mirror 8 with respect to the primary mirror 7 is determined, and the divided mirror 8 becomes the primary mirror 7.
, the latch pin 5 of the primary mirror 7 is held by the corresponding latch mechanism 6 of the split mirror 8, and the primary mirror 7 and the split mirror 8 are fixed.

At this time, the split mirror 8 comes into contact with the neighboring split mirror 8 that has already been assembled, and the split mirrors 8 are also fixed by the latch pin 5 and the latch mechanism 6.

[Problem to be solved by the invention]

In the conventional assembly type antenna reflector described above, it is necessary to insert two guide pins into the guide holes at the beginning of assembling each split mirror. Since this requires positioning at two locations relative to the opening of the guide hole, it is difficult to assemble using a manipulator.

In order to solve this problem, the number of guide pins for each split mirror light is reduced to one, and the guide pin is inserted into the guide hole with the split mirror tilted in a certain direction with respect to the primary mirror around the axis of the guide pin. Furthermore, move the split mirror toward the primary mirror, rotate the split mirror around the axis of the guide pin with the split mirror in contact with the primary mirror, and when the correct rotational position is reached, the primary mirror and each split mirror will latch together. A structure has also been proposed in which the split mirror is fixed at the end, and further rotation of each split mirror is stopped. This structure is easy to assemble because only one position is required when inserting the guide pin into the guide hole. Therefore, it is necessary to provide a certain amount of clearance between the primary mirror and each divided mirror in the assembled state, and between each divided mirror for rotational movement, and also to allow rotation around the axis of the guide pin. Since the axial fixing force of the latch that stops the split mirror is small, it has the disadvantage that a large fixing force cannot be obtained between it and the split mirror.

[Means to solve the problem]

The prefabricated antenna reflector of the present invention is a prefabricated antenna reflector in which a plurality of segmented mirrors are combined with a primary mirror to form a reflective mirror surface, in which each surface of the primary mirror is in contact with each of the segmented mirrors in an assembled state. or a guide pin provided on either one of the surfaces of each of the split mirrors in contact with the primary mirror, and a guide hole provided in either of the split mirrors or the primary mirror to receive the guide pin; When the guide pin is partially inserted into the guide hole and the divided mirror is adjusted to a required rotational position around the axis of the guide pin, and then moved in the axial direction of the guide pin and comes into contact with the primary mirror. and a latch for fixing each of the divided mirrors to the primary mirror.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a partially exploded perspective view of an embodiment of the present invention.

The embodiment shown in FIG. 1 is divided into seven parts, one primary mirror 1 and six divided mirrors 2.
It has the same external shape as the conventional example shown in the figure. Primary mirror 1 and split mirror 2
is a latch pin 5 and a latch mechanism 6 that connect both of them.
The main features of the conventional example shown in FIG. It is the same as mirror 7 and split mirror 8.

Since the split mirror 2 has only one guide pin 4,
It is easy to insert this guide pin 4 into the guide hole 3. When the guide pin 4 is inserted into the guide hole 3 to some extent and the relative direction of the split mirror 2 to the primary mirror 1 is determined except for the rotational position around the axis of the guide pin 4, the split mirror 2 is rotated to a predetermined rotation position, When the split mirror 2 is further moved toward the primary mirror l, each latch bin 5. By the action of each latch mechanism 6, the primary mirror 1 and the divided mirror 2 are fixed, and the divided mirrors 2 are fixed together, as in the conventional example shown in FIG.

A latch bin 5 provided on the primary mirror 1 is held by a latch mechanism 6 provided on the split mirror 2, and the primary mirror 1 and the split mirror 2 are fixed with strong resistance against the direction in which they are separated from each other. In addition, each segmented mirror 2 performs a translational movement relative to the primary mirror 1, then rotates, and further translates for final positioning. There is no need to provide a particular gap between the two.

In addition, if a stopper is provided to limit the rotation range of the guide pin 4 relative to the guide hole 3, and the relative direction of the split mirror 2 to the primary mirror 1 is determined when the rotation is stopped by this stopper, the rotation around the axis of the guide pin 4 can be determined. It is also extremely easy to locate the rotational position of.

Alternatively, the guide pin 4 may be provided on the primary mirror 1 and the guide hole 3 may be provided on the split mirror 2. Furthermore, if there is no need for strength, the latch for fixing the split mirrors to each other may not be provided.

〔Effect of the invention〕

As explained above, the present invention uses one guide pin for each divided mirror to determine the relative direction of the divided mirror with respect to the primary mirror, and the divided mirror sequentially performs translational movement, rotational movement, and translational movement with respect to the primary mirror. By using a structure in which the primary mirror and each divided mirror are fixed with a latch, and each divided mirror is fixed with a chi, it can be easily assembled by a manipulator. There is no need to provide a particular gap between the primary mirror and each divided mirror or between each divided mirror, and there is also an effect that the divided mirror can be firmly fixed to the primary mirror.

[Brief explanation of the drawing]

FIG. 1 is a partially exploded perspective view of an embodiment of the present invention, and FIG. 2 is a partially exploded perspective view of an example of a conventional prefabricated antenna reflector. 1...Primary mirror, 2...Divided mirror, 3...
...Guide hole, 4...Guide pin, 5...
... Latch bin, 6... Latch mechanism. Agent Patent Attorney Susumu Uchihara

Claims (1)

[Claims] In a prefabricated antenna reflector in which a plurality of divided mirrors are combined with a primary mirror to form a reflecting mirror surface, each surface of the primary mirror in contact with each of the divided mirrors in the assembled state or each of the divided mirrors in contact with the primary mirror A guide pin provided on either one of the surfaces of the mirror, a guide hole provided in either the split mirror or the primary mirror to receive the guide pin, and the guide pin partially inserted into the guide hole. After inserting the split mirror into the guide pin and adjusting the split mirror to a required rotational position around the axis of the guide pin, when the split mirror is moved in the axial direction of the guide pin and brought into contact with the primary mirror, each split mirror is brought into contact with the primary mirror. A prefabricated antenna reflector comprising: a latch for fixing the mirror;