JPH01166006A - Reflection mirror developing system - Google Patents

Abstract

PURPOSE:To store a reflection mirror which is large-sized as much as possible in a limited storage capacity by providing the revolving shaft of the reflection mirror, which is divided into two constituting parts and is expanded and stored by rotating both constituting parts around the common shaft, ahead of the reflection face. CONSTITUTION:A reflection mirror 1 is divided into two constituting parts 1a and 1b, and both constituting parts are attached to a revolving shaft 3 provided ahead of a center position 8 of the reflection mirror face, namely, on the reflection face side. When the reflection mirror is stored, the revolving shaft 3 and a rotation mechanism part do not require an excess storage capacity because the revolving shaft 3 is stored in a space between both constituting parts which face each other and are stored; and when the reflection mirror is developed, the revolving shaft 3 does not hinder the reflection mirror in light reception or light condensation because it exists in a space between reflection faces. Thus, this system is effective as the developing and storing method for storage of the large-sized reflection mirror in a limited vessel because dimensions of the reflection mirror at the time of storage are reduced.

Description

【発明の詳細な説明】 ［産業上の利用分野］ この発明は宇宙において太陽光あるいはレーザ光の受光
または集光に用いられる反射鏡の展開、収納方式に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for deploying and storing a reflecting mirror used for receiving or condensing sunlight or laser light in space.

〔従来の技術１ 従来、剛性が高く折曲げ不可能な反射面を有する反射鏡
を宇宙で用いる場合には、打上げ時に反射鏡を一体とし
て反射鏡の端部に設けた軸回りに回転して収納し、宇宙
で正規の位置に回転して使用する跳上げ展開式の反射鏡
（第４図参照）あるいは反射鏡を複数個の構成部分に分
割し、それぞれの構成部分を反射鏡面の後方に設けた軸
回りに回転して折畳んで打上げた後宇宙で正規の位置に
回転して使用する方式の折畳み式反射鏡（第５図参照）
が用いられていた。つまり第４図および第５図は例えば
宇宙科学研究所における第１回宇宙構造物研究会（昭和
６０年）のプロシーディングに示された跳上げ展開式お
よび折畳み式の反射鏡の構造を示す概念図である。[Conventional technology 1] Conventionally, when a reflector with a highly rigid and unbendable reflecting surface is used in space, the reflector is rotated as a unit around an axis provided at the end of the reflector during launch. A flip-up deployable reflector that is stored and rotated to its normal position in space (see Figure 4), or a reflector that is divided into multiple components and each component placed behind the reflector surface. A folding reflector that rotates around a set axis, folds, is launched, and then rotates to its normal position in space for use (see Figure 5).
was used. In other words, Figures 4 and 5 are concepts showing the structures of flip-up and folding reflectors, as shown in the proceedings of the first Space Structures Study Group (1985) at the Institute of Space and Astronautical Science. It is a diagram.

第４図の跳上げ展開式の反射鏡では反射鏡（１）（Ｄ＝
１．８ｍ）は反射鏡端部の跳上げ駆動機構（２）を用い
て軸（３）の回りに回転することにより収納状態（４）
から跳上げ状態（５）に展開され運用可能になる。In the flip-up type reflector shown in Figure 4, reflector (1) (D=
1.8m) can be moved to the stored state (4) by rotating it around the axis (3) using the flip-up drive mechanism (2) at the end of the reflector.
It is then deployed to the raised state (5) and becomes operational.

また第５図の折畳み式反射鏡では反射鏡（１）は三つの
構成部分（ｌａ）、（ｌｂ）、（ｌｃ）に分割して構成
されており、構成部分（ｌａ）。Further, in the folding type reflecting mirror shown in FIG. 5, the reflecting mirror (1) is divided into three constituent parts (la), (lb), and (lc), and the constituent part (la).

（ＩＣ）は同（１ｂ）の背面に取付けられた支持構造（
６）に設けられたヒンジ部（７ａ）ないしく７ｄ）によ
って（１ｂ）に結合されている。反射鏡を展開する際に
は図には示されていない駆動機構によりヒンジ部（７ａ
）’、（７ｂ）に共通の回転軸（３ａ）およびヒンジ部
（７ｃ）、（７ｄ）に共通の回転軸（３ｂ）の回りに構
成部分（１ａ）、（ｌｃ）を回転して収納状態（４）か
ら展開状態（５）に移行し運用可能とする。(IC) is a support structure (IC) attached to the back of IC (1b).
It is connected to (1b) by a hinge part (7a) or 7d) provided at (6). When unfolding the reflector, the hinge part (7a) is moved by a drive mechanism (not shown).
)', (7b) and around the rotation axis (3b) common to the hinge parts (7c) and (7d), the component parts (1a) and (lc) are rotated to the stored state. Transition from (4) to deployment state (5) and enable operation.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来宇宙で用いられている展開形反射鏡では跳上げ展開
式の反射鏡の場合、反射鏡の外形以上の収納面積が必要
になる欠点があり、折畳み式の反射鏡の場合には折曲げ
軸が反射面の背後にあって回転機構の容積が反射鏡の収
納容積に追加されるため収納効率が低下し、特に限られ
た容積に大形の反射鏡を収納する必要のある宇宙用反射
鏡の展開方式としては問題があった。Conventional deployable reflectors used in space have the disadvantage that the flip-up type reflector requires a storage area larger than the outer size of the reflector, and the folding type reflector requires a storage area larger than the outer size of the reflector. is located behind the reflecting surface and the volume of the rotating mechanism is added to the storage volume of the reflector, reducing storage efficiency, especially for space reflectors where it is necessary to store a large reflector in a limited volume. There was a problem with the way it was deployed.

この発明は上記のような問題を解決するためになされた
もので、特に０ＲＩＩ　（Ｏｒｂｉｔａｌ　Ｒｅｐｌａ
ｃｅｍｅｎｔＵｎｉｔ　：収納容積は例えば１ｍＸ１ｍ
Ｘ２ｍ）のような限られた収納容積中に可能な限り大形
の反射鏡を収納することのできる反射鏡展開方式を得る
ことを目的としている。This invention was made to solve the above problems, and in particular, 0RII (Orbital Repla
cementUnit: Storage volume is, for example, 1mX1m
The purpose of this invention is to obtain a reflector deployment system that can accommodate as large a reflector as possible in a limited storage volume such as 2 m).

［問題点を解決するための手段］ この発明による反射鏡展開方式は、反射鏡を二つの構成
部分に分割して両構成部分を共通の軸回りに互いに回転
して展開、収納する方式の反射鏡において共通の回転軸
を反射面より前方に設けると共に、展開時に画構成部分
間に隙間を設けるものである。[Means for Solving the Problems] The reflective mirror deployment method according to the present invention is a reflective mirror deployment system in which a reflective mirror is divided into two component parts, and both component parts are deployed and stored by rotating each other around a common axis. A common rotation axis is provided in front of the reflecting surface in the mirror, and a gap is provided between the image constituent parts when unfolded.

［作用］ この発明による反射鏡展開方式では反射鏡の両構成部分
の回転軸は、反射鏡収納時には、向い合って収納された
両構成部分の間の隙間に収納されるため、回転軸と回転
機構部は余分な収納容積な必要とせず、反射鏡展開時に
は両構成部分の構成する反射面間の隙間にあるため反射
鏡による受光あるいは集光の妨げとならない。[Function] In the reflector unfolding method according to the present invention, when the reflector is stored, the rotation axes of both component parts of the reflector are stored in the gap between the two component parts that are stored facing each other, so that the rotation axes and the rotation axes are The mechanism does not require extra storage space, and when the mirror is deployed, it is located in the gap between the reflective surfaces of both components, so it does not interfere with light reception or focusing by the mirror.

［発明の実施例］ 次にこの発明の一実施例を図によって説明する。第１図
において、反射鏡（１）は二つの構成部分（１ａ）と（
１ｂ）に分割されており、両構成部分は反射鏡面の中心
位置（８）の前方即ち反射面側に設けられた回転軸（３
）に図示されていないヒンジ部によって取付けられてい
る。第１図の反射鏡展開方式では、例えば構成部分（１
ａ）を軸（３）の回りに軸受を介して回転可能に取付け
、同（１ｂ）を軸（３）に一体に取付けることにより、
（１ａ）側をプラットフォーム構造物等に固定した状態
で軸（３）に付設した駆動機構により軸（３）を回転し
て反射鏡を収納状態（４）から展開状態（５）に移行で
きる。[Embodiment of the Invention] Next, an embodiment of the present invention will be described with reference to the drawings. In Figure 1, the reflector (1) has two components (1a) and (
1b), and both components are separated by a rotation axis (3
) is attached by a hinge part (not shown). In the reflector development method shown in Fig. 1, for example, the component (1
By attaching a) rotatably around the shaft (3) via a bearing, and integrally attaching the same (1b) to the shaft (3),
With the (1a) side fixed to a platform structure or the like, the shaft (3) is rotated by a drive mechanism attached to the shaft (3), so that the reflector can be moved from the stored state (4) to the deployed state (5).

次に第１図に示す反射鏡展開方式の特徴を第２図によっ
て説明する。第２図は反射鏡の構成部分（１ａ）を軸（
３）（紙面に直角）の方向から見た状態の概形を示して
おり、図において（５）は反射鏡の展開状態、（４ａ）
は軸（３）を反射鏡面の中心位置（８）の後方（９）に
設けた場合（従来）の反射鏡構成部分（１ａ）の収納状
態を示しており、（４ｂ）は軸（３）を、反射鏡面の中
心位置（８）の前方（１０）に設けた場合（本発明）の
反射鏡の構成部分（１ａ）の収納状態を示している。Next, the features of the reflecting mirror deployment method shown in FIG. 1 will be explained with reference to FIG. Figure 2 shows the component part (1a) of the reflecting mirror as the axis (
3) shows the outline of the state as seen from the direction (perpendicular to the page), in the figure (5) is the unfolded state of the reflector, (4a)
(4b) shows the retracted state of the reflecting mirror component (1a) when the shaft (3) is provided at the rear (9) of the center position (8) of the reflecting mirror surface (conventional); This figure shows the storage state of the component (1a) of the reflective mirror when it is provided in front (10) of the center position (8) of the reflective mirror surface (in accordance with the present invention).

収納状態（４ａ）と（４ｂ）は、収納状態で反射鏡の構
成部分（１ａ）と（１ｂ）が接触する状態即ち収納限界
を示しており、（１１ａ）と（１１ｂ）はそれぞれの場
合の収納容積のおよその断面形状を示している。（ｌｌ
ａ）と（１ｌ　ｂ）を比較することにより本発明による
展開方式は特にＸ方向の収納寸法が従来の展開方式を用
いる場合に比較して著しく減少する効果があり、特にＯ
ＲＵを用いる場合のように限定された大きさの容器に大
形の反射鏡を収納する上で有効な方式である。Storage states (4a) and (4b) indicate the state where the components (1a) and (1b) of the reflecting mirror are in contact in the storage state, that is, the storage limit, and (11a) and (11b) represent the storage limits in each case. The approximate cross-sectional shape of the storage volume is shown. (ll
Comparing a) and (1l b), it can be seen that the deployment method according to the present invention has the effect of significantly reducing the storage size in the X direction compared to the case of using the conventional deployment method.
This is an effective method for storing a large reflecting mirror in a container of limited size, such as when using RU.

本発明の展開方式では軸（３）を反射面の前方に設けて
いるが、反射鏡（１）の構成部分（１ａ）と（１ｂ）の
間に隙間を設けているため軸（３）は反射鏡（１）への
入射光および（１）からの反射光のいずれに対しても障
害にならない。In the deployment method of the present invention, the shaft (3) is provided in front of the reflecting surface, but since there is a gap between the components (1a) and (1b) of the reflecting mirror (1), the shaft (3) is It does not interfere with either the light incident on the reflecting mirror (1) or the light reflected from the reflecting mirror (1).

以上の実施例では反射鏡（１）の両構成部分（ｌａ）、
（ｌｂ）はそれぞれ一体に構成されている例を示したが
、本発明による展開方式は（ｌａ）および（１ｂ）を小
形のセグメント鏡に分割して構成した反射鏡にも適用可
能である。第３図は擬似六角形（ｊ２２＝３０ｃｍ）の
小形セグメント鏡（１２）を支持構造（６）に取付けて
（１ａ）と（１ｂ）を構成した反射鏡に本発明による展
開方式を適用した例であり、開口径的１．６ｍに相当す
る反射鏡（隙間゛β、＝１０ｃｍ）を反射面の前方に設
けた軸（３）の回りに回転することによってｌｍＸｌｍ
Ｘ２ｍのＯＲＵの収納限界（１１）内に収納可能である
ことを示している（Ｌ＋　＝Ｌ２　＝　１ｍ、Ｌ３　＝
２ｍ）が、収納容積になお余裕があるためセグメント鏡
を大形化して、更に大形の反射鏡を同一寸法のＯＲＵ内
に収納可能である。また第３図の反射鏡では最も収納限
界（１１）の近くにあるセグメン］・鏡例えば（１３）
を別の位置（例えば１３ａ）等に移すことによりより大
形の反射鏡を同一寸法の［）ＲＵ内に収納できる利点が
ある。In the above embodiment, both component parts (la) of the reflecting mirror (1),
Although (lb) has been shown as an example in which each mirror is integrally constructed, the development method according to the present invention is also applicable to a reflecting mirror in which (la) and (1b) are divided into small segment mirrors. Figure 3 shows an example in which the deployment method according to the present invention is applied to a reflector configured by attaching a pseudo-hexagonal (j22 = 30 cm) small segment mirror (12) to a support structure (6) to configure (1a) and (1b). By rotating a reflecting mirror (gap β, = 10 cm) corresponding to an aperture diameter of 1.6 m around the axis (3) provided in front of the reflecting surface, lmXlm
This shows that it can be stored within the ORU storage limit (11) of x2m (L+ = L2 = 1m, L3 =
2m), but since there is still plenty of storage space, it is possible to enlarge the segment mirror and store a larger reflecting mirror in the ORU of the same size. In addition, in the reflector shown in Figure 3, the segment closest to the storage limit (11)]・Mirror For example, (13)
By moving the reflector to another position (for example, 13a), there is an advantage that a larger reflecting mirror can be accommodated within the [)RU of the same size.

なお第３図においてはセグメント鏡の形を擬似六角形の
構成した場合を示したが、セグメント鏡の形状はこの形
状に限定されるものではなく矩形あるいは円形等信の形
状のセグメント鏡を用いても同様の効果が得られる。Although Fig. 3 shows a case in which the segment mirror is configured in a pseudo-hexagonal shape, the shape of the segment mirror is not limited to this shape, and a segment mirror in a rectangular or circular shape may be used. A similar effect can be obtained.

［発明の効果］ 以上のようにこの発明による展開方式では反射鏡を二つ
に分割して両構成部分の間に展開状態において隙間を設
けるとともに、反射面の前方に設けた共通の軸回りに両
構成部分を回転して展開、収納することにより従来の展
開方式による反射鏡に比べて収納時の寸法を小さくでき
るため、特にＯＲＵのように寸法の限られた容器内に大
形の反射鏡を収納する際の展開、収納方法として有効で
ある。[Effects of the Invention] As described above, in the unfolding method according to the present invention, the reflecting mirror is divided into two parts, a gap is provided between the two constituent parts in the unfolded state, and a space is provided around the common axis provided in front of the reflecting surface. By rotating both components to unfold and store them, the size of the mirror when stored can be made smaller than that of a reflector that uses the conventional unfolding method. It is effective as a method of expansion and storage when storing.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの発明の一実施例による反射鏡の展開方式を
示す概念図、第２図はこの発明による反射鏡の展開方式
により収納寸法を小さくできることを示す模式図、第３
図はこの発明による反射鏡の展開方式と併せて反射鏡を
セグメントに分割することにより更に大形の反射鏡を同
一の収納容積に収納できることを示す構造図、第４図お
よび第５図は従来の反射鏡の展開方式を示す概念図であ
る。 図において（１）および（１ａ）等は反射鏡とその構成
部分、（３）は反射鏡の展開、収納時の回転軸、（４）
と（５）は反射鏡の収納状態と展開状態、（１１）は収
納限界。 なお、図中同一符号は同一または相当部分を示す。 代理人　弁理士　　大　　岩　　増　　雄喀 （ｂ） ５図 （ａ）FIG. 1 is a conceptual diagram showing a method for deploying a reflector according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing that the storage size can be reduced by the method for deploying a reflector according to the present invention, and FIG.
The figure is a structural diagram showing that a larger reflector can be stored in the same storage volume by dividing the reflector into segments in addition to the unfolding method of the reflector according to the present invention. FIG. In the figure, (1) and (1a), etc. are the reflector and its constituent parts, (3) is the rotation axis when the reflector is unfolded and stored, and (4)
and (5) are the storage and unfolded states of the reflector, and (11) is the storage limit. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent: Patent attorney Masu Oiwa (b) Figure 5 (a)

Claims (3)

【特許請求の範囲】[Claims] （１）二分割された反射鏡の両構成部分を共通の軸周り
に互いに回転することにより展開あるいは収納する方式
において、共通の回転軸を反射鏡の反射面より前方に設
けたことを特徴とする反射鏡展開方式。(1) A method in which both constituent parts of a two-part reflector are rotated around a common axis to deploy or store them, and the feature is that the common axis of rotation is provided in front of the reflecting surface of the reflector. Reflector deployment method. （２）二分割された反射鏡の両構成部分は展開した際に
両構成部分の間に隙間を有することを特徴とする特許請
求の範囲第１項記載の反射鏡展開方式。(2) The reflecting mirror unfolding method according to claim 1, wherein both constituent parts of the two-divided reflecting mirror have a gap between the two constituent parts when unfolded. （３）二分割された反射鏡の両構成部分を剛性が高く折
曲げ不可能な反射面で構成していることを特徴とする特
許請求の範囲第１項または第２項記載の反射鏡展開方式
。(3) Development of a reflecting mirror according to claim 1 or 2, characterized in that both constituent parts of the two-split reflecting mirror are made of highly rigid and unbendable reflecting surfaces. method.