JPS62128202A - Sub reflection mirror drive mechanism - Google Patents
Sub reflection mirror drive mechanismInfo
- Publication number
- JPS62128202A JPS62128202A JP26845485A JP26845485A JPS62128202A JP S62128202 A JPS62128202 A JP S62128202A JP 26845485 A JP26845485 A JP 26845485A JP 26845485 A JP26845485 A JP 26845485A JP S62128202 A JPS62128202 A JP S62128202A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- sub
- memory alloy
- reflection mirror
- shape memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、副反射鏡の適切な位置調整を行う駆動機構
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drive mechanism for appropriately adjusting the position of a sub-reflector.
例えば第２図は従来の副反射鏡駆動機構の正面図（イ）
および側面図（ロ）である。（１）は副反射４支」寺社
、（２）は副反射鏡、（３）は副反射鏡支持柱１ζ固定
されたピン受け、＋４＋ 、 ）５１はそれぞれ副反射
鏡Ｃζ固定されたピン受け、（６）はビン、＋７］ 、
＋８１はそれぞれ上記副反射鑓支持柱と副反射鏡をつ
なぐロッド、（９）は駆動モータ、（１１はこの駆動モ
ータの回転軸につながるギアヘッド、ａυはこのギアヘ
ッドＥζつながるウオーム減速機、ｔｌ？Ｊはばねであ
る。For example, Figure 2 is a front view of a conventional sub-reflector drive mechanism (A).
and a side view (b). (1) is the sub-reflector 4-branch temple and shrine, (2) is the sub-reflector, (3) is the pin holder fixed to the sub-reflector support column 1ζ, +4+, )51 is the pin holder fixed to the sub-reflector Cζ, respectively. , (6) is a bottle, +7],
+81 is a rod connecting the above-mentioned sub-reflector support column and the sub-reflector, (9) is a drive motor, (11 is a gear head connected to the rotating shaft of this drive motor, aυ is a worm reducer connected to this gear head Eζ, tl?J It is a spring.
従来の副反射鏡駆動機構は上記のよう１ζ溝成されてい
るので、駆動を行うｆこあたり、駆動モータ（９）を回
転させ、この駆動モータ田）の回転軸の回転をギアヘッ
ド’１１で減速し、さら１ζウオーム誠速自ｕＤで減速
させ、同時１ζ回転軸方向を９０”変えてウオーム減速
ａｕυの回転軸ｆζ連結固定されたロッド（８）を動作
させる。このロッド（８）は副反射鏡ｆζ固定されたピ
ン受はへ５）とビン（６）を介して結合されている。Since the conventional sub-reflector drive mechanism has a 1ζ groove as described above, the drive motor (9) is rotated to perform the drive, and the rotation of the rotation axis of this drive motor (9) is controlled by the gear head '11. The worm deceleration is decelerated, further decelerated by the 1ζ worm true speed uD, and at the same time the 1ζ rotation axis direction is changed by 90'' to operate the rod (8) connected and fixed to the rotation axis fζ of the worm deceleration auυ.This rod (8) is The pin receiver to which the reflecting mirror fζ is fixed is connected to the mirror fζ via a pin (6).
また副反射鏡支持柱１ζ固定されたピン受け（３）と副
反射鏡ｉζ固定されたピン受け＋４１とロッド（７）が
、ビン（６）を介して結合されている。上記２本のロッ
ドｔ７１ 、 ＋８１はそれらの延長線の交点に副反射
鏡回転中心がくるように設置されている。従−λで上記
２本のロッドと副反射鏡（２）は４節リンクを溝成し、
ロッドＢ １．８＋の動作によ−って、副反射鏡（２）
は副反射鏡回転中心を中心として近似的１ζ回転運動を
行う。Further, the pin receiver (3) to which the sub-reflector support column 1ζ is fixed, the pin receiver +41 to which the sub-reflector iζ is fixed, and the rod (7) are coupled via a pin (6). The two rods t71 and +81 are installed so that the center of rotation of the sub-reflector is located at the intersection of their extended lines. At secondary -λ, the above two rods and the secondary reflector (2) form a four-bar link,
By the operation of rod B 1.8+, the sub-reflector (2)
performs an approximate 1ζ rotational motion around the rotation center of the sub-reflector.
ばねじはウオーム減速機（１１）のバックラッシュ除去
ｆζ使用されている。The spring screw is used to eliminate backlash fζ of the worm reducer (11).
従来の副反射鏡駆動機溝は以上のように構成されている
ので、副反射鏡を動作させるためＣζ、駆動モータ軸の
高速回転を減速せねばならず、減速機の使用、さらにバ
ックラッシュの除去などの機構が不可決であるため、機
構が複雑で重量も大きくなる。また駆動モータの騒音、
駆動モータの故障や減速機の歯車の摩耗等Ｃζよるメン
テナンスＥζ手間がかかるなどの問題点があった。Since the conventional sub-reflector drive groove is configured as described above, in order to operate the sub-reflector, Cζ, the high-speed rotation of the drive motor shaft must be decelerated, requiring the use of a speed reducer and further reducing backlash. Since the removal mechanism is unreliable, the mechanism is complicated and heavy. Also, the noise of the drive motor,
There were problems such as failure of the drive motor, wear of the gears of the reducer, etc., which required maintenance Eζ due to Cζ.
この発明は上記のような問題点を解消するためＥζ、駆
動モータ、減速機を使用せずに簡単な機構で軽量な副反
射鏡駆動（ａ構を得ることを目的とする。In order to solve the above-mentioned problems, the present invention aims to obtain a lightweight sub-reflector drive (a-structure) with a simple mechanism without using an Eζ, a drive motor, or a speed reducer.
この発明Ｅζ係る副反射鏡駆動機構は、形状記、は合金
製のばねとそのばねを加熱するヒータとそれらを仕切る
隔壁とパイアスカを発生させるためのばねからなるアー
ムを、副反射鏡支持柱と副反射鏡のインタフェースとし
て取り付けたものである。The sub-reflector drive mechanism according to this invention Eζ has an arm consisting of an alloy spring, a heater for heating the spring, a partition wall separating them, and a spring for generating a piascus, as a sub-reflector support column. It was installed as an interface for the sub-reflector.
この発明１ζおける形状記憶合金製のバネは、熱Ｅζよ
る一定量の伸縮により、アームの長さを変化させ副反射
鏡の動きを調整する。The spring made of shape memory alloy in this invention 1ζ changes the length of the arm by expanding and contracting a certain amount due to heat Eζ, and adjusts the movement of the sub-reflector.
第１図はこの発明の一実施例を示す正直図である。 FIG. 1 is a straight view showing an embodiment of the present invention.
（ｉ）ｅ １２１ ｓ ｔａ＋ ｅ １４１ ＃ １ｂ
＋ −ｔｂ＋ ｓ （７１は上記従来装置と全く同一の
ものである。ｌ１３は副反射鏡支持柱（１）１ζ固定さ
れたピン受Ｄ１α委は副反射鏡支持柱（１）にピン結合
された外枠、Ｃ９（１０Ｕηは各々、形状記ｔホ合金製
ばね、叩ｕｌ（社）は各々、形状記憶合金製はね四、（
頂、（１ηを加熱する外枠−ｆζ固定されたヒータであ
り、各々電源をＯＮ、ＯＦＦできるようｆζなっている
。(i) e 121 s ta+ e 141 # 1b
+ -tb+ s (71 is exactly the same as the above conventional device. 113 is the sub-reflector support column (1) 1ζ is fixed pin receiver D1α is pin-coupled to the sub-reflector support column (1) Outer frame, C9 (10Uη each, shape t E alloy spring, Tatul (company) each, shape memory alloy spring 4, (
The outer frame -fζ that heats the top (1η) is a fixed heater, and the power supply is set to fζ so that the power can be turned on and off.
＋２１１ Ｄ Ｅは各々上記外枠間中をｊ＆動する、上
記形状記憶合金製ばねを仕切る隔壁である。形状記は合
金製ばね［１５１の端は、外枠−上端と隔壁しＤに固定
され、形状記憶合金製ばね（ｌ山の端は隔壁シυと隔壁
ｆ２２１１ζ固定され、形状記憶合金製ばねＣ７１の端
は、隔壁のと隔壁１２３１に固定されている。（２４Ｉ
は隔壁１２３１１ζ固定されたピン受け、（２ｊはロッ
ドである。ロッド１２５）は、ピン（６）を介してピン
受けＣ４Ｊとピン受け＋４１に結合している。（澗はそ
の端が外枠ｕ滲と副反射鏡（２）に固定されたばねであ
り、外枠Ｌ１４１と副反射鏡（２）の間にパイアスカが
常に発生している。+211 DE and E are partition walls that partition the shape memory alloy springs, respectively, moving between the outer frames. The shape of the alloy spring [151 is fixed to the outer frame-upper end and the partition wall D, and the end of the shape memory alloy spring (the end of the crest is fixed to the partition wall S υ and the partition wall f2211ζ, and the end of the shape memory alloy spring C71 is fixed to the partition wall υ and the partition wall D). is fixed to the partition wall and the partition wall 1231. (24I
is a pin receiver fixed to the partition wall 12311ζ, (2j is a rod. Rod 125) is connected to pin receiver C4J and pin receiver +41 via a pin (6). (The edge is a spring whose end is fixed to the outer frame L141 and the sub-reflector (2), and a piascus always occurs between the outer frame L141 and the sub-reflector (2).
上記のようｆζ溝成された副反射鏡駆動機構において、
形状記憶合金製ばね（１５１はヒータ（Ｉｇｌｌζよっ
て加熱されると一定遣伸び、ヒータ＋＋８１１ζよる加
熱を止めると縮み元の状態に戻る。形状記憶合金製ばね
（１６）はヒータｕｇ）によ−】で、形状記憶合金製ば
ね１１７１はヒータｔ２０１１ζよって同様の動作を行
う。隔壁しυはヒータ（１５１の熱の拡散の防止と形状
記憶合金製ばねＵωを一定方向１ζ動作させるガイドの
役割をする。In the sub-reflector drive mechanism formed with the fζ groove as described above,
The shape memory alloy spring (151 is heated by the heater (Igllζ) and expands at a constant rate, and when the heating by the heater ++811ζ is stopped, it contracts and returns to its original state. The shape memory alloy spring (16) is heated by the heater ug)] The shape memory alloy spring 1171 performs the same operation by the heater t2011ζ.The partition wall υ serves to prevent the heat diffusion of the heater (151) and to guide the shape memory alloy spring Uω to move in a constant direction 1ζ.
他の隔壁＠ｄも同様の動きを行う。ばねωは副反射鏡（
２）の上下方向の動きの不安定さを防止するために取り
付けられている。従って、上記の各々のヒータ電源のＯ
Ｎ 、 ＯＦＦ ｔζよって、例えば上記形状記憶合金
製ばねの長さの比を４：２：１ ＋ζなるよう（こす
れば、２＝８とおりの組合せをもち、各々の組合せＥζ
おいて副反射鏡（２１はロッド（７）とロッド（８）と
副反射鏡（２）からなる４節リンク構造から、副反射鏡
回転中心を中ＩＩ＞ Ｉζ近似的Ｉζ回転運動を行う。The other partition walls @d also perform similar movements. The spring ω is the sub-reflector (
2) is installed to prevent instability of vertical movement. Therefore, the O of each of the above heater power supplies is
N, OFF tζ Therefore, for example, the length ratio of the shape memory alloy spring should be 4:2:1 +ζ (If you rub it, you will have 2=8 combinations, and each combination Eζ
The sub-reflector (21) has a four-bar link structure consisting of a rod (7), a rod (8), and a sub-reflector (2), and performs an approximate Iζ rotation movement about the rotation center of the sub-reflector.
なお、上記実施例では、形状記憶合金製ばねが８個の場
合であ−Ｊたが、細かい駆動制御を行うためＣζ、さら
ｆζ幾つかの形状記憶合金製ばねを組合せてもよい。In the above embodiment, there are eight shape memory alloy springs, but in order to perform fine drive control, several shape memory alloy springs may be combined.
また、上記実施例では副反射鏡駆動の場合Ｃζついて説
明したが、Ａ２回転駆動やＥＬ回転駆動ｔζおいても上
記実施例と同様の効果を奏する。Further, in the above embodiment, the explanation has been given for Cζ in the case of sub-reflector drive, but the same effects as in the above embodiment can be achieved also in A2 rotation drive and EL rotation drive tζ.
以上のよう１ζ、この発明によれば形状記憶合金製ばね
とヒータとそれらを仕切るｈａを組み合せた簡単な構造
で、騒音を発生せず、バラクラシュを持たず、それぞれ
の為素において摩耗を発生せず、か−】軽量な副反射駆
動機構が得られる効果がある。As described above, the present invention has a simple structure that combines a shape memory alloy spring, a heater, and a ha that separates them, and does not generate noise, has no bala crash, and does not cause wear in each element. This has the effect of providing a lightweight sub-reflection drive mechanism.
第１図はこの発明の副反射鏡駆動典購−実施例を示す正
面図、第２図は従来の副反射鏡駆動機溝を示す正直図お
よび側面図である。
図１ζおいて、（１）は副反射鏡支持柱、ｔ２＋は副反
射鏡、刊は外枠、＋１５１ 、 ＋１６１ 、 ｔｌη
は形状記憶合金製ばね、ｕ８１ 、 ［９） 、 ＋２
０１はヒータ、ｔａｌｌ 、 ｄ 、 Ｑｌは隔壁、■
はロッド、（至）はばねである。
なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a front view showing an embodiment of the sub-reflector drive mechanism of the present invention, and FIG. 2 is a front view and a side view showing a conventional sub-reflector drive groove. In Figure 1ζ, (1) is the sub-reflector support column, t2+ is the sub-reflector, column is the outer frame, +151, +161, tlη
is a shape memory alloy spring, u81, [9), +2
01 is the heater, tall, d, Ql is the partition, ■
is a rod, and (to) is a spring. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (3)
ねおよびその変形手段を取付け、このばねの変形により
副反射鏡の駆動を行うことを特徴とする副反射鏡駆動機
構。(1) A sub-reflector driving mechanism characterized in that a shape-memory alloy spring and its deformation means are installed between the sub-reflector and its support column, and the sub-reflector is driven by the deformation of the spring.
求の範囲第１項記載の副反射鏡駆動機構。(2) The sub-reflector drive mechanism according to claim 1, wherein the deforming means has a heater.
状記憶合金製ばねの端に取付けたことを特徴とする特許
請求の範囲第２項記載の副反射鏡駆動機構。(3) The sub-reflector drive mechanism according to claim 2, wherein the deforming means has a partition that partitions the shape memory alloy spring attached to an end of the shape memory alloy spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60268454A JPH0666574B2 (en) | 1985-11-28 | 1985-11-28 | Subreflector drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60268454A JPH0666574B2 (en) | 1985-11-28 | 1985-11-28 | Subreflector drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62128202A true JPS62128202A (en) | 1987-06-10 |
| JPH0666574B2 JPH0666574B2 (en) | 1994-08-24 |
Family
ID=17458728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60268454A Expired - Fee Related JPH0666574B2 (en) | 1985-11-28 | 1985-11-28 | Subreflector drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0666574B2 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59120791A (en) * | 1982-12-27 | 1984-07-12 | Keihin Seiki Mfg Co Ltd | Heating for driving body made of shape memorizing alloy |
| JPS60103A (en) * | 1983-06-15 | 1985-01-05 | Fujitsu Ltd | Beam width variable antenna |
| JPS604009U (en) * | 1983-06-23 | 1985-01-12 | 株式会社東芝 | antenna device |
| JPS606135U (en) * | 1983-06-25 | 1985-01-17 | 富士ゼロックス株式会社 | Lens moving device in variable magnification copying machine |
| JPS60172836A (en) * | 1984-02-06 | 1985-09-06 | Nippon Telegr & Teleph Corp <Ntt> | Earth station tracking drive system |
| JPS60233377A (en) * | 1984-05-02 | 1985-11-20 | Sendai Mech Kogyo Kk | Driving mechanism in normal temperature, low temperature and vacuum |
| JPS60261374A (en) * | 1984-06-08 | 1985-12-24 | Ulvac Corp | Operating device in vacuum |
-
1985
- 1985-11-28 JP JP60268454A patent/JPH0666574B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59120791A (en) * | 1982-12-27 | 1984-07-12 | Keihin Seiki Mfg Co Ltd | Heating for driving body made of shape memorizing alloy |
| JPS60103A (en) * | 1983-06-15 | 1985-01-05 | Fujitsu Ltd | Beam width variable antenna |
| JPS604009U (en) * | 1983-06-23 | 1985-01-12 | 株式会社東芝 | antenna device |
| JPS606135U (en) * | 1983-06-25 | 1985-01-17 | 富士ゼロックス株式会社 | Lens moving device in variable magnification copying machine |
| JPS60172836A (en) * | 1984-02-06 | 1985-09-06 | Nippon Telegr & Teleph Corp <Ntt> | Earth station tracking drive system |
| JPS60233377A (en) * | 1984-05-02 | 1985-11-20 | Sendai Mech Kogyo Kk | Driving mechanism in normal temperature, low temperature and vacuum |
| JPS60261374A (en) * | 1984-06-08 | 1985-12-24 | Ulvac Corp | Operating device in vacuum |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0666574B2 (en) | 1994-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |