JP2723287B2 - Assembled antenna reflector - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial application field) The present invention relates to an assembled antenna reflector suitable for construction in space, for example.

(Prior art) In recent space development, the aperture diameter in outer space is 50-
It is considered to construct an antenna reflector having a reflector surface of 100 m scale. In such an antenna reflector, it is difficult to transport directly from the ground to outer space, so it is effective to use an assembly type that is divided from the ground and transported to outer space, and assembled and used in outer space. It is said that there is.

FIG. 4 shows such a conventional assembling type antenna reflector, in which the mirror surface 1 is divided into a plurality of assemblable split mirror surfaces 1a... And these split mirror surfaces 1a are connected in a parabolic shape. Are formed in a plate shape having a predetermined curvature, and connection pins 2 and connection holes (not shown for convenience of illustration) for positioning and latching are provided at both ends in the radial direction. It is formed corresponding to the connection hole and the connection pin of the adjacent divided mirror surface. In the circumferential direction of the divided mirror surface 1a, a wedge-shaped connecting portion 3 is formed at one end thereof corresponding to a connected portion (not shown) of the divided mirror surface adjacent to one side, and is formed in the other circumferential direction. A connected portion (not shown for the sake of illustration) is formed at the end corresponding to the connection portion of the divided mirror surface adjacent to the other. The split mirror surface 1a has the connection pin 2 mounted in the connection hole of the adjacent split mirror surface, and the connection portion 3 and the connected portion (not shown) connected to the connected portion and the connection portion of the adjacent split mirror surface. And is assembled with predetermined accuracy.

However, in the assembling type athena reflecting mirror, at the time of assembling, the connecting pin 2 and the connecting portion 3 and the connected portion (not shown), which are disposed substantially orthogonal to the plate-shaped split mirror surface 1a, are simultaneously specified. Since the mounting must be performed with high mounting accuracy, there is a problem that the assembling work is troublesome. This is especially true when constructing in outer space, because the work environment requires the use of manipulators, etc., which limits the assembly accuracy in terms of the work environment. Is difficult.

(Problems to be Solved by the Invention) As described above, in the conventional assembled-type antenna reflector, a plurality of connection portions arranged substantially orthogonally at the time of the assembly must be attached almost simultaneously with high accuracy. As a result, there has been a problem that the mounting operation is very troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has a simplified structure, can be simplified in mounting work, and can realize mounting with as high accuracy as possible. The purpose is to provide a mirror.

[Constitution of the Invention] (Means for Solving the Problems) The present invention relates to an assembled antenna reflecting mirror formed by connecting a plurality of divided mirror surfaces to form a mirror surface, wherein the divided mirror surfaces are fixed to a plurality of frame-shaped fixed members. The frame member is formed so as to be expandable and contractible in one direction via a foldable bending member, and to be developed in a box shape having one side having a mirror surface in conjunction with the expansion of the bending member. It is.

(Operation) According to the above configuration, the split mirror surfaces are connected in order in one direction substantially orthogonal to the adjacent split mirror surfaces by the expansion and contraction adjustment between the fixed frame members in conjunction with the folding and unfolding of the bending member. Assembled. Therefore, since these divided mirror surfaces are not assembled while being connected to other adjacent divided mirror surfaces at substantially the same time as in the related art,
Simple and highly accurate assembly is realized.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an assembly type reflector according to an embodiment of the present invention. For example, a plurality of divided mirror surfaces 11 divided in a radial direction and a circumferential direction (in FIG. (Indicated by oblique lines) are connected to form a mirror surface 10 . However, each of these divided mirror surfaces 11 is configured in substantially the same manner, and here, only one of them will be described as a representative.

That is, as shown in FIG. 2, for example, the split reflecting mirror 11 includes a plurality of fixed frame members 11a.
Are arranged at predetermined intervals. This fixed frame member 11a
One end thereof is formed corresponding to the curvature at a predetermined position on the entire mirror surface, and an intermediate portion thereof is reinforced to a predetermined strength via a reinforcing member 11b. These fixed frame members 11a are foldably connected to each other via a plurality of folding members 11c each having an intermediate portion formed so as to be foldable, and are assembled on a box. For example, a mesh-like reflector 12 is attached (see FIG. 1).

The fixed frame members 11a at both ends of the fixed frame members 11a... Opposing the adjacent divided mirror surfaces are provided at predetermined intervals with the first latch mechanism 13 or the first latched mechanism (for convenience of illustration, FIG. (Not shown) of the other divided mirror surface adjacent to each other in the circumferential direction.
Are formed corresponding to the latch mechanism. Further, a second latch mechanism 14 or a second latched mechanism (not shown for convenience of illustration) is provided on the bent frame member 11c on another divided mirror surface which is radially adjacent to the second latch mechanism 14c. It is formed corresponding to the latch mechanism or the second latch mechanism. These first and second latch mechanisms 13 and 14 are, for example, similarly
It has connection pins 13a and 14a for positioning and latching as shown in the figure, and is connected to the first and second latched mechanisms of another adjacent divided mirror surface.

It is not necessary to provide, for example, the second latched mechanism for the divided mirror surface located at the outermost periphery of the mirror surface 10 .

In the above configuration, when assembling the divided mirror surface 11, first, the bending member 11c is bent and folded as shown in FIG. 13 is attached to the first latching mechanism of the circumferentially divided mirror surface already attached, and the circumferential direction is determined. next,
The split mirror surface 11 has its bent members 11c.
After the fixed frame members 11a are extended, the second latch mechanism 14 is attached to the already-attached radially split second mirror-attached mechanism, as shown in FIG.
Radial positioning is performed. Thereafter, the remaining divided mirror surfaces are attached to the attached divided mirror surface 11 in substantially the same manner in order, and the mirror surface 10 is assembled as shown in FIG.

As described above, the assembled antenna reflecting mirror has a split mirror surface 11.
A plurality of fixed frame members each having a predetermined curvature
11a is connected at a predetermined interval via a folding member 11c which can be folded and unfolded, and the reflection member 12 is provided on one surface of the folding member 11c. By expanding and contracting the fixed frame members 11a, it is possible to connect to the other divided mirror surface in one direction at a time substantially orthogonal to the other divided mirror surface. Can do it.

In the above-described embodiment, the case where the present invention is applied to a parabolic antenna reflector is described. However, the present invention is not limited to this shape and can be applied. Therefore, it is needless to say that the present invention is not limited to the above-described embodiment, and that various modifications can be made without departing from the scope of the present invention.

[Effects of the Invention] As described in detail above, according to the present invention, the configuration is simplified, the mounting workability can be simplified, and the mounting with the highest possible accuracy can be realized. An assembled antenna reflector can be provided.

[Brief description of the drawings]

FIG. 1 is a structural view showing an assembled antenna reflector according to an embodiment of the present invention, FIG. 2 is a structural view showing a split mirror surface of FIG. 1 taken out, and FIG. FIG. 4 is a view showing details, and FIG. 4 is a view showing a conventional assembled antenna reflector. 10 mirror surface, 11 split mirror surface, 11a fixed frame member, 11b reinforcing member, 11c bending member, 12 reflective member, 13 first latch mechanism, 14th Latch mechanism 2, 13a, 14a ... Connection pins.

Claims (1)

(57) [Claims] 1. An assembled antenna reflecting mirror comprising a plurality of divided mirror surfaces connected to form a mirror surface, wherein said divided mirror surfaces are connected to each other via a folding member which is capable of folding a plurality of frame-shaped fixed frame members. An assembling-type antenna reflector, wherein the reflector is formed so as to be expandable and contractible in a direction and to be developed in a box shape having a mirror surface on one side in conjunction with the deployment of the bending member.