JPH03107935A - Electromagnetic driving device and its driving method - Google Patents

Abstract

PURPOSE:To obtain a miniaturized and simple electromagnetic driving device by utilizing both a permanent magnet and an electromagnetic coil comprising the electromagnetic driving device as actuators. CONSTITUTION:The device is equipped with a first driving member 20 consisting of plural permanent magnets 22, a second driving member 30 consisting of plural electromagnetic coils 32 interposing in the magnetic field of the permanent magnet 22, and regulating means 21b, 27 to regulate the movement of either the first and second driving members 20, 30 in the direction of a pulse current supplied to the electromagnetic coil 32. And both the permanent magnet 22 and the electromagnetic coil 32 comprising the electromagnetic driving device are used as the actuators, and for example, when it is used in the electromagnetic shutter device of a camera, an operation as if two electromagnetic coil arranging members dedicated for an AF operation and an AE operation are provided can be performed. In such a way, the electromagnetic driving device with a powerful and quick driving force and miniaturized and with simple structure can be obtained.

Description

【発明の詳細な説明】 ［産業上の利用分野］ この発明は永久磁石と、この永久磁石の磁界内に設けら
れた電磁コイルとの間に生起する電磁力によって、例え
ばカメラのＡＰ動作ならびにＡＥ動作と言った駆動動作
を行う駆動源として用いられる電磁駆動装置及びその駆
動方法に関する。Detailed Description of the Invention [Industrial Field of Application] This invention utilizes electromagnetic force generated between a permanent magnet and an electromagnetic coil provided within the magnetic field of the permanent magnet to perform, for example, AP operation of a camera and AE. The present invention relates to an electromagnetic drive device used as a drive source for performing a drive operation, and a method for driving the same.

［従来の技術］ 一般に、カメラ等に用いられている電磁駆動装置として
は、例えば特開昭６０−２６０９０９号公報のように、
電磁コイルの配列部材を２部材備え、それぞれをＡＰ動
作専用とＡＥ動作専用としたものがある。このような各
動作専用の駆動源を備えたものは切り替え機構が不要な
為に構造が簡単になるという利点を有する。[Prior Art] In general, as an electromagnetic drive device used in a camera etc., for example, as disclosed in Japanese Patent Application Laid-Open No. 60-260909,
There is one that has two electromagnetic coil array members, one dedicated to AP operation and one dedicated to AE operation. Such a device equipped with a drive source dedicated to each operation has the advantage that the structure is simple because a switching mechanism is not required.

また、１部材の電磁コイル配列部材を有し、この電磁コ
イル配列部材を中立点を堺に、その正転と逆転させるこ
とによってＡＦ動作およびＡＥ動作をさせるようにする
こともできる。この場合、電磁コイルの配列部材が１部
材のみで済む為に部品点数が少なく安価な装置が得られ
る利点を有する。Further, it is also possible to have a single electromagnetic coil array member, and to perform the AF operation and the AE operation by rotating the electromagnetic coil array member forward and reverse, with the neutral point at the center. In this case, since only one member is required for arranging the electromagnetic coils, there is an advantage that an inexpensive device with a small number of parts can be obtained.

［発明が解決しようとする課題〕 しかしながら、前記公報のように、電磁コイルの配列部
材を２部材備えたのでは、磁石とのエアーギャップが２
部材で異なり、磁束密度Ｂがエアーギャップである距離
りの二乗に反比例する関係上（ＢＣＣＩ／Ｌ”）磁石の
磁力を有効に使うことが難しく、エアーギャップの大き
い方の部材の駆動力が弱まり、弱い駆動力を補うのには
減速機構が大きくなるだけでなく、装置の厚みも大きく
なりカメラの小型化に反するという問題点があった。[Problems to be Solved by the Invention] However, when two electromagnetic coil arrangement members are provided as in the above-mentioned publication, the air gap with the magnet is two.
It differs depending on the member, and because the magnetic flux density B is inversely proportional to the square of the distance that is the air gap (BCCI/L”), it is difficult to use the magnetic force of the magnet effectively, and the driving force of the member with a larger air gap is weakened. However, in order to compensate for the weak driving force, not only did the speed reduction mechanism become larger, but the thickness of the device also increased, which went against the trend of miniaturizing cameras.

一方、電磁コイルの配列部材を１部材だけ備えたもので
は、上記のような問題点は解消出来る反面、中位点を設
ける必要の有り、全体としては小型化し難くいという問
題点があった。On the other hand, with a device having only one electromagnetic coil arrangement member, the above-mentioned problems can be solved, but on the other hand, there is a problem that it is necessary to provide a midpoint, and it is difficult to miniaturize the device as a whole.

［発明の目的コ 本発明は、このような従来の技術における諸問題点に鑑
みて成されたもので、電磁駆動装置を構成する永久磁石
と電磁コイルの両方をアクチュエータとして利用可能と
することによって、例えばカメラの電磁駆動シャッタ装
置に利用した場合、あたかもＡＦ動作専用ならびにＡＥ
動作専用の電磁コイル配列部材を２部材備えたように動
作し得る等、小型で構造簡単な電磁駆動装置、及びその
駆動方法を提供することを目的としている。[Purpose of the Invention] The present invention has been made in view of the various problems in the conventional technology, and is achieved by making it possible to use both the permanent magnet and the electromagnetic coil that constitute the electromagnetic drive device as an actuator. For example, when used in a camera's electromagnetic shutter device, it is as if it were used only for AF operation and for AE operation.
It is an object of the present invention to provide an electromagnetic drive device that is small and has a simple structure, such as being able to operate as if it were equipped with two electromagnetic coil array members dedicated to operation, and a method for driving the same.

［課題を解決するための手段］ 上記目的を達成するための本発明の要旨とするところは
、 装置フレームにそれぞれ可動自在に支持された複数個の
永久磁石からなる第一の駆動部材、及び前記永久磁石の
磁界内に介在する複数個の電磁コイルからなる第二の駆
動部材と、前記電磁コイルに供給するパルス電流の方向
で第一及び第二の駆動部材の一方の移動を規制する規制
手段とを備えた電磁駆動装置であって、又この電磁駆動
装置に於いて、上記電磁コイルに供給する第一の方向の
パルス電流で上記第一の駆動部材の移動を上記規制手段
で規制し、上記第二の駆動部材を一方向に可動させ、前
記第一の方向とは逆の第二の方向のパルス電流で前記第
二の駆動部材の移動を前記規制手段で規制し、前記第一
の駆動部材を前記第二の駆動部材の可動方向とは逆方向
に可動させるようにしたものである。[Means for Solving the Problems] The gist of the present invention for achieving the above object is as follows: A first driving member consisting of a plurality of permanent magnets each movably supported on an apparatus frame; a second driving member consisting of a plurality of electromagnetic coils interposed in the magnetic field of the permanent magnet; and a regulating means for regulating movement of one of the first and second driving members in the direction of a pulse current supplied to the electromagnetic coil. an electromagnetic drive device, further comprising: regulating movement of the first drive member by the regulating means using a pulse current in a first direction supplied to the electromagnetic coil; The second driving member is moved in one direction, the movement of the second driving member is regulated by the regulating means with a pulse current in a second direction opposite to the first direction, and the movement of the second driving member is regulated by the regulating means. The drive member is configured to move in a direction opposite to the movable direction of the second drive member.

［作用コ 上記構成において、例えばカメラ用電磁駆動シャッタ装
置としてその作用を説明すると、複数個の永久磁石から
なる第一の駆動部材を自動焦点調節動作（ＡＦ動作）用
の第１の駆動源とし、複数個の電磁コイルの配列部材と
した第二の駆動部材をシャツタ開閉動作（ＡＥ動作）用
の第２の駆動源とする。[Function] In the above configuration, for example, to explain the function as an electromagnetic drive shutter device for a camera, the first drive member made of a plurality of permanent magnets is used as the first drive source for automatic focus adjustment operation (AF operation). A second drive member, which is an array member of a plurality of electromagnetic coils, is used as a second drive source for the shirt opening/closing operation (AE operation).

第二の駆動部材に正のパルスが入力されると、第１の駆
動源と第２の駆動源、すなわち第一の駆動部材と第二の
駆動部材とは互いに作用・反作用の関係により反対方向
の回転駆動力を発生し、相反方向に回転しようとする。When a positive pulse is input to the second driving member, the first driving source and the second driving source, that is, the first driving member and the second driving member, move in opposite directions due to the relationship of action and reaction. generates rotational driving force and attempts to rotate in opposite directions.

しかし、第２の駆動源は係止手段（第二の係止手段）で
係止されているから回転することができず、一方の第１
の駆動源、すなわち第二の駆動部材のみが回転する。こ
の第１の駆動源はＡＦ動作用であるから、すなわち上記
動作によって焦点調節がなされたことになる。However, since the second drive source is locked by the locking means (second locking means), it cannot rotate;
Only the drive source, ie the second drive member, rotates. Since this first drive source is for AF operation, focus adjustment is performed by the above operation.

次に、負のパルスが入力されると、前記第１の駆動源は
係止手段（第一の係止手段）によって係止されて不動と
なるから、前駆動源の間に生じる回転駆動力は一方の第
２の駆動源、すなわち第二の駆動部材のみを回転させる
。しかして、この第２の駆動源はＡＥ動作用であるから
、前記動作はすなわちシャッタの開閉動作である。Next, when a negative pulse is input, the first driving source is locked by the locking means (first locking means) and becomes immobile, so the rotational driving force generated between the front driving sources rotates only one second drive source, that is, the second drive member. Since this second drive source is for AE operation, the operation is the opening/closing operation of the shutter.

［実施例］ 以下、カメラ用電磁駆動シャッタ装置の駆動源として利
用した本発明の第１実施例に関し第１図〜第５図に基づ
き説明する。[Embodiment] A first embodiment of the present invention, which is used as a drive source for an electromagnetic shutter device for a camera, will be described below with reference to FIGS. 1 to 5.

カメラの電磁駆動シャッタ１０は、第１図に示すように
電磁駆動力を発生する第１の駆動源であるマグネットリ
ング２０（第一の駆動部材）と、コイルリング３０（第
二の駆動部材）とを中心にして構成されている。As shown in FIG. 1, the electromagnetically driven shutter 10 of the camera includes a magnet ring 20 (first driving member), which is a first driving source that generates electromagnetic driving force, and a coil ring 30 (second driving member). It is structured around.

マグネットリング２０は、中心Ｇこ露光開口２１ａを有
し、外周に第１の係止手段であるラチェツト歯２１ｂを
刻設してなるリング体２１と、該リング体２１に放射状
に植設された多数の永久磁石２２とから成っている。永
久磁石２２の極性は隣接するものが交互に反対になるよ
うに配列され、本実施例では１６個の永久磁石２２が２
２．５度の等間隔をおいて植設されている。The magnet ring 20 includes a ring body 21 having an exposure opening 21a at the center G, and ratchet teeth 21b, which are first locking means, carved on the outer periphery, and a ring body 21 that is radially implanted in the ring body 21. It consists of a large number of permanent magnets 22. The polarity of the permanent magnets 22 is arranged so that adjacent ones are alternately opposite, and in this embodiment, 16 permanent magnets 22 are
They are planted at equal intervals of 2.5 degrees.

コイルリング３０は、やはり中心部に露光開口３１ａを
有するコイル枠３１の上に、複数個の電磁コイル体３２
を接着して成っている。The coil ring 30 includes a plurality of electromagnetic coil bodies 32 on a coil frame 31 that also has an exposure opening 31a in the center.
It consists of glued together.

電磁コイル体３２の配列は第５図に示すように、３２　
Ａ１．３２　Ａ２．３２　Ａ３．３２　Ａ４、の４個の
電磁コイル体３２は開口３１の周囲で９０°の等間隔で
放射状に配置され、３２　Ｂｌ、３２　Ｂ２．３２　Ｂ
３．３２Ｂ４、は前記３２Ａ１〜３２Ａ４に対し、それ
ぞれ、４０．ブの間隔を隔て９０°等間隔で放射状に配
置されている。The arrangement of the electromagnetic coil body 32 is as shown in FIG.
The four electromagnetic coil bodies 32 A1.32 A2.32 A3.32 A4 are arranged radially around the opening 31 at equal intervals of 90°, 32 Bl, 32 B2.32 B
3.32B4 is 40. for each of the above 32A1 to 32A4. They are arranged radially at equal intervals of 90 degrees, with intervals of 90 degrees apart.

コイルリング３０にはさらに第１図に示すように、コイ
ル枠３１の下部にシャッタ羽根５０に係合して開閉させ
る一対の羽根開閉ビン３３が突設されている。As shown in FIG. 1, the coil ring 30 is further provided with a pair of blade opening/closing pins 33 protruding from the lower part of the coil frame 31, which are engaged with the shutter blades 50 to open and close them.

マグネットリング２０とコイルリング３０との間には、
コイルリング３０とともに回転し、各電磁コイル休３２
に結合されるプリントリング３５が設けられており、コ
イルリング３０の貫通穴３１ｂを貫通して係合し、通電
手段を兼ねた第２の係止手段である導通ビン３６が植設
されている。。Between the magnet ring 20 and the coil ring 30,
It rotates together with the coil ring 30, and each electromagnetic coil rest 32
A printed ring 35 is provided, which is coupled to the coil ring 30, and a conduction pin 36, which is a second locking means that penetrates and engages the through hole 31b of the coil ring 30 and also serves as a current supply means, is implanted. . .

マグネットリング２０による磁力は、該マグネットリン
グ２０の上面を覆う第１ヨーク２３とコイルリング３０
の下部に配設される第２ヨーク２６とによって、コイル
リング３０の各電磁コイル体３２を通る強力な磁界を形
成している。The magnetic force by the magnet ring 20 is applied to the first yoke 23 covering the upper surface of the magnet ring 20 and the coil ring 30.
A strong magnetic field passing through each electromagnetic coil body 32 of the coil ring 30 is formed by the second yoke 26 disposed at the lower part of the coil ring 30 .

第１ヨーク２３には、第２ヨーク２６と磁気的に吸引接
合され磁路を形成する嵌合部２３ａが突設されており、
マグネットリング２０、プリントリング３５およびコイ
ルリング３０の各中心部を貫通して第２ヨーク２６の開
口２６ａに接合している。The first yoke 23 is provided with a protruding fitting portion 23a that is magnetically attracted to the second yoke 26 and forms a magnetic path.
It penetrates through the center of each of the magnet ring 20, print ring 35, and coil ring 30 and is joined to the opening 26a of the second yoke 26.

第１ヨーク２３にはレンズ鏡筒と係合する係合ビン２４
が植設されており、さらに、この第１ヨーク２３、マグ
ネットリング２０および第２ヨーク２６を一体にして一
方向に付勢する付勢ばね２５が設けられている。The first yoke 23 has an engagement pin 24 that engages with the lens barrel.
Further, a biasing spring 25 is provided which integrally biases the first yoke 23, the magnet ring 20, and the second yoke 26 in one direction.

第１ヨーク２３の上部にはベアリング３９を介して第１
押え板４０がカバー４２と一体になって覆っており、第
２ヨーク下部にはベアリング３９を介して第２押え板４
４が設けられている。なお、前記第１押え板４０には、
マグネットリング３０のリング体外周に刻設されたラチ
ェツト歯２１ｂに噛合するラチェツト爪２７（第１の係
止手段）の枢支軸４１が植設されている。The upper part of the first yoke 23 has a first
A presser plate 40 integrally covers the cover 42, and the second presser plate 4 is attached to the lower part of the second yoke via a bearing 39.
4 is provided. Note that the first presser plate 40 includes:
A pivot shaft 41 of a ratchet pawl 27 (first locking means) that meshes with ratchet teeth 21b carved on the outer periphery of the ring body of the magnet ring 30 is implanted.

前記ラチェツト爪２７は、第４図に示すように前記ラチ
ェツト歯２１ｂに噛合する方向に付勢する付勢ばね２８
が配設されている。The ratchet pawl 27 is biased by a biasing spring 28 that biases the ratchet pawl 27 in the direction of meshing with the ratchet tooth 21b, as shown in FIG.
is installed.

第２押え板４４には、プリントリング３５の導通ピン３
６が回動可能に挿通する導通ビン穴４４ａ（第２の係止
手段）と、コイルリング３０に設けられた羽根開閉ビン
３３が回動可能に挿通する開閉ピン穴４４ｂが穿設され
ている。The second holding plate 44 has a conductive pin 3 of the print ring 35.
A conductive pin hole 44a (second locking means) into which the coil ring 30 is rotatably inserted, and an opening/closing pin hole 44b through which the blade opening/closing pin 33 provided on the coil ring 30 is rotatably inserted. .

第２押え板４４とその下部に設けられたセクタ地板４５
との間には一対のシャッタ羽根５０が配設されている。The second holding plate 44 and the sector base plate 45 provided below it
A pair of shutter blades 50 are arranged between the two.

支する羽根枢支ピン４６が植設されている。A supporting blade pivot pin 46 is implanted.

一方、シャッタ羽根５０には、前記羽根枢支ピン４６に
回動自在に枢着する軸穴５０ａと、コイルリング３０の
羽根開閉ビン３３に係合する開閉用穴５０ｂが穿設され
ている。On the other hand, the shutter blade 50 has a shaft hole 50a rotatably attached to the blade pivot pin 46, and an opening/closing hole 50b that engages with the blade opening/closing pin 33 of the coil ring 30.

セクタ地板４５にはまた、前記羽根開閉ピン３３が回動
可能に挿通する開閉ピン通し穴４５ａおよびプリントリ
ング３５の導通ピン３６の通る導通ピン通し穴４５ｂが
穿設されている。そして、この導通ピン３６には導通部
材を兼ねた付勢ばね４７が結合されている。The sector base plate 45 is also provided with an opening/closing pin through hole 45a through which the blade opening/closing pin 33 is rotatably inserted, and a conductive pin through hole 45b through which the conductive pin 36 of the print ring 35 passes. A biasing spring 47 that also serves as a conductive member is coupled to the conductive pin 36.

前記付勢ばね４７は、前記導通ピン３６がセクタ地板４
５の導通ピン通し穴４５ｂを貫通した先でコイルリング
３０と結合しており、コイルリング３０及プリントリン
グ３５とを一方向に付勢するものである。The biasing spring 47 is arranged such that the conductive pin 36 is connected to the sector base plate 4.
It is connected to the coil ring 30 at the end that passes through the conductive pin through hole 45b of No. 5, and urges the coil ring 30 and the printed ring 35 in one direction.

尚、第一の係止手段であるラチェツト歯２１ｂとラチェ
ツト爪２７、及び第二の係止手段である導通ピン３６と
導通ピン穴４４ａとを単一の係止手段で構成してもよい
。Incidentally, the ratchet teeth 21b and the ratchet pawl 27, which are the first locking means, and the conduction pin 36 and the conduction pin hole 44a, which are the second locking means, may be constituted by a single locking means.

次に動作を説明する。Next, the operation will be explained.

そこで、いま第１図において、電磁コイル体３２に正方
向の信号パルスが入力されたとすると、コイルリング３
０は図において時計方向に回動しようとし、マグネット
リング２０は反時計方向に回動しようとする。しかるに
、コイルリング３０とともに回動しようとするプリント
リング３５の導通ピン３６は常に付勢ばね４７によって
第２押え板４４の導通ピン通し穴４４ｂの一方の端に係
止しているから、コイルリング３０ともども回動するこ
とができない。Therefore, in FIG. 1, if a positive signal pulse is input to the electromagnetic coil body 32, the coil ring 3
0 tries to rotate clockwise in the figure, and the magnet ring 20 tries to rotate counterclockwise. However, since the conductive pin 36 of the printed ring 35 that is about to rotate together with the coil ring 30 is always locked to one end of the conductive pin through hole 44b of the second holding plate 44 by the biasing spring 47, the coil ring Both 30 and 30 cannot be rotated.

一方、反時計方向に回転駆動力を受けるマグネットリン
グ２０は、第４図に示すように、この方向にはラチェツ
ト爪２７はリング体２１外周のラチェツト歯２１ｂには
噛合しないから、自在に回動し、このマグネットリング
２０とともに回動する第１ヨーク２３の係合ピン２４に
よって、レンズ鏡筒が駆動され、ＡＰ動作がなされる。On the other hand, the magnet ring 20, which receives rotational driving force in the counterclockwise direction, can freely rotate because the ratchet pawl 27 does not mesh with the ratchet teeth 21b on the outer periphery of the ring body 21 in this direction, as shown in FIG. However, the lens barrel is driven by the engaging pin 24 of the first yoke 23 that rotates together with the magnet ring 20, and AP operation is performed.

所定のＡＰ動作が終わると、電磁コイル体３２には逆方
向信号パルスが入力され、上記とは逆に、コイルリング
３０は反時計方向に、マグネットリング２０は時計方向
の回転駆動力を受ける。When the predetermined AP operation is completed, a reverse direction signal pulse is input to the electromagnetic coil body 32, and contrary to the above, the coil ring 30 receives a rotational driving force in a counterclockwise direction, and the magnet ring 20 receives a rotational driving force in a clockwise direction.

このような駆動力によって、マグネットリング２０は回
転しようとしても、今度はラチェツト爪２７がリング体
２１のラチェツト歯２１ｂに噛合して回動することがで
きず、ＡＰ動作完了位置で停止している。Due to such driving force, even if the magnet ring 20 attempts to rotate, the ratchet pawl 27 meshes with the ratchet teeth 21b of the ring body 21 and cannot rotate, so that it stops at the AP operation completion position. .

一方のコイルリング３０は反時計方向に回動するが、こ
の際同時に回動するプリントリング３５の導通ピン３６
は、付勢ばね４７に抗しながら第２押え板４４の導通ピ
ン穴４４ａおよびセクタ地板４５の導通ピン通し穴４５
ｂを回動し、このときコイルリング３０の羽根開閉ピン
３３はシャッタ羽根５０を開く、そして所定の露光時間
を経過した後、前記信号パルスの入力が絶たれると、付
勢ばね４７はプリントリング３５を引き戻し、これによ
ってコイルリング３０も同時に引き戻される。そして、
コイルリング３０の時計方向の戻り回転によって、羽根
開閉ピン３３はシャッタ羽根５０を閉方向に駆動し、Ａ
Ｅ動作が完了する。One coil ring 30 rotates counterclockwise, but at the same time the conductive pin 36 of the printed ring 35 rotates.
is the conductive pin hole 44a of the second holding plate 44 and the conductive pin through hole 45 of the sector base plate 45 while resisting the biasing spring 47.
At this time, the blade opening/closing pin 33 of the coil ring 30 opens the shutter blade 50, and when the input of the signal pulse is cut off after a predetermined exposure time, the biasing spring 47 closes the print ring. 35 is pulled back, whereby the coil ring 30 is also pulled back at the same time. and,
By the clockwise return rotation of the coil ring 30, the blade opening/closing pin 33 drives the shutter blade 50 in the closing direction.
E operation is completed.

また、前記信号パルスの入力停止とともに、マグネット
Ｍｇへ通電し、マグネットＭｇによりラチェツト爪２７
がラチェツト歯２１より離間し係合が解除されることに
よって、マグネットリング２０とともに回動する第１ヨ
ーク２３は付勢ばね２５によって時計方向に回転し、図
示しない復帰カム機構により、レンズ鏡筒も原位置に復
帰する。Further, when the input of the signal pulse is stopped, the magnet Mg is energized, and the ratchet pawl 27 is activated by the magnet Mg.
is separated from the ratchet teeth 21 and the engagement is released, the first yoke 23 rotating together with the magnet ring 20 is rotated clockwise by the biasing spring 25, and the lens barrel is also rotated by a return cam mechanism (not shown). Return to original position.

［発明の効果コ 以上詳述したように、本発明に係る電磁駆動装置によれ
ば、電磁駆動装置を構成する永久磁石と電磁コイルの両
方をアクチュエータとして利用可能とすることによって
、例えばカメラの電磁駆動シャッタ装置に利用した場合
、あたかもＡＰ動作専用ならびにＡＥ動作専用の電磁コ
イル配列部材を２部材備えたように動作し得る等２強力
で速やかな駆動力を発揮でき、小型で構造簡単な電磁駆
動装置、及びその駆動方法が提供出来た。[Effects of the Invention] As detailed above, according to the electromagnetic drive device according to the present invention, by making it possible to use both the permanent magnet and the electromagnetic coil that constitute the electromagnetic drive device as actuators, for example, the electromagnetic drive device of a camera can be used. When used in a drive shutter device, it can operate as if it were equipped with two electromagnetic coil array members, one dedicated to AP operation and one dedicated to AE operation, etc. 2. An electromagnetic drive with a small size and simple structure that can exert powerful and quick driving force. We were able to provide the device and its driving method.

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

第１図〜第５図は発明の第１実施例を示しており、第１
図は装！の分解斜視図、第２図は同じく縦断面図、第３
図はマグネットリングの平面図、第４図は第１の停止手
段の要部説明図、第５図はコイルリングの配置図である
。 ２０　マグネットリング（第１の駆動源）２１ｂ　　ラ
チェツト歯（第１の係止手段）２２　永久磁石、 ３ ２７ ０ ２ ６ ４ａ 　０ １ 第１ヨーク　　　２６　第２ヨーク ラチエツト爪（第１の係止手段） コイルリング（第２の駆動源） 電磁コイル体 導通ピン（第２の係止手段） 導通ピン穴（第２の係止手段） シャッタ羽根 セクタギヤ機構（第１の係止手段） 第２図 Ｏ 第４図 ０ 第３図（ａ） 第３図（１））1 to 5 show a first embodiment of the invention,
The illustration is attached! Figure 2 is also a vertical sectional view, Figure 3 is an exploded perspective view of
4 is a plan view of the magnet ring, FIG. 4 is an explanatory diagram of the main part of the first stopping means, and FIG. 5 is a layout diagram of the coil ring. 20 Magnet ring (first drive source) 21b Ratchet teeth (first locking means) 22 Permanent magnet, 3 27 0 2 6 4a 0 1 First yoke 26 Second yoke ratchet pawl (first locking means) Coil Ring (second drive source) Electromagnetic coil conduction pin (second locking means) Conductive pin hole (second locking means) Shutter blade sector gear mechanism (first locking means) Fig. 2 O Fig. 4 Figure 0 Figure 3 (a) Figure 3 (1))

Claims (2)

【特許請求の範囲】[Claims] （１）装置フレームにそれぞれ可動自在に支持された複
数個の永久磁石からなる第一の駆動部材、及び前記永久
磁石の磁界内に介在する複数個の電磁コイルからなる第
二の駆動部材と、前記電磁コイルに供給するパルス電流
の方向で第一及び第二の駆動部材の一方の移動を規制す
る規制手段とを備えた電磁駆動装置。(1) a first driving member consisting of a plurality of permanent magnets each movably supported on a device frame; and a second driving member consisting of a plurality of electromagnetic coils interposed within the magnetic field of the permanent magnets; An electromagnetic drive device comprising: a regulating means for regulating movement of one of the first and second drive members in the direction of the pulse current supplied to the electromagnetic coil. （２）装置フレームにそれぞれ可動自在に支持された複
数個の永久磁石からなる第一の駆動部材、及び前記永久
磁石の磁界内に介在する複数個の電磁コイルからなる第
二の駆動部材と、前記電磁コイルに供給するパルス電流
の方向で第一及び第二の駆動部材の一方の移動を規制す
る規制手段とを備えた電磁駆動装置に於いて、 上記電磁コイルに供給する第一の方向のパルス電流で上
記第一の駆動部材の移動を上記規制手段で規制し、上記
第二の駆動部材を一方向に可動させ、前記第一の方向と
は逆の第二の方向のパルス電流で前記第二の駆動部材の
移動を前記規制手段で規制し、前記第一の駆動部材を前
記第二の駆動部材の可動方向とは逆方向に可動させるよ
うにしたことを特徴とする電磁駆動装置の駆動方法。(2) a first driving member made of a plurality of permanent magnets each movably supported on a device frame; and a second driving member made of a plurality of electromagnetic coils interposed in the magnetic field of the permanent magnets; In the electromagnetic drive device, the electromagnetic drive device includes a regulating means for regulating the movement of one of the first and second drive members in the direction of the pulse current supplied to the electromagnetic coil, The movement of the first drive member is regulated by the regulating means using a pulse current, the second drive member is moved in one direction, and the movement of the first drive member is controlled by the pulse current in a second direction opposite to the first direction. An electromagnetic drive device characterized in that the movement of the second drive member is regulated by the regulating means, and the first drive member is moved in a direction opposite to the direction in which the second drive member moves. Driving method.