JPH0347293Y2 - - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は、自動車用ドアの施解錠ノブ操作等を
電導駆動するための電動式ロータリーアクチユエ
ータに関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an electric rotary actuator for electrically driving the locking/unlocking knob operation of an automobile door.

（従来の技術） 自動車の施解錠ノブ操作を行なわせるアクチユ
エータは、施錠位置、解錠位置の２つの機構上の
安定位置両方から、それぞれに他方向の安定位置
に向かう操作力を発生する型式のものが所要され
る。(Prior Art) The actuator that operates the locking/unlocking knob of an automobile is of the type that generates an operating force from two mechanically stable positions, the locked position and the unlocked position, toward each stable position in the other direction. something is needed.

従来の双安定で双方向駆動型リニアアクチユエ
ータは、可動鉄心を双方向に駆動するため、駆動
方向に応じたコイルを２個備え、その一方のコイ
ルは他方が駆動に使用されているときは遊びとな
るため、コイルの容積当りの利用効率が悪く、形
状が大きくなるとともに、重さも大となる欠点が
ある。 Conventional bistable bidirectional drive type linear actuators drive the movable iron core in both directions, so they are equipped with two coils depending on the drive direction, and one coil is used when the other is used for drive. Since there is play, the usage efficiency per volume of the coil is poor, and the disadvantage is that the shape is large and the weight is also large.

さらに、上記リニアアクチユエータは、双方向
駆動のために、駆動方向に応じて設けた２個のコ
イルに、可動鉄心を跨がらせた構造としなければ
ならない関係上、所要ストロークを得るための可
動鉄心の長さにより２個のコイルの間隔分だけ、
可動鉄心の長さを、余分に長くしなければなら
ず、外形寸法がストローク方向に長くなる欠点が
ある。 Furthermore, in order to drive bidirectionally, the linear actuator has to have a structure in which two coils installed according to the driving direction straddle the movable iron core, so it is difficult to obtain the required stroke. Depending on the length of the movable core, the distance between the two coils is
There is a drawback that the length of the movable core must be made extra long, and the external dimensions become longer in the stroke direction.

（本考案が解決しようとする問題点） 本考案は、従来のリニアアクチユエータの欠点
を解消するもので、駆動方向に応じて駆動コイル
に流す電流方向を双方向に制御し、かつ、複数個
のコイルには、遊ばせるコイルをなくして全部の
コイルに同時に電流を流すようにすることによ
り、コイルの利用効率を高めて、不要な容積と重
量を軽減し、かつ、駆動力を発生する可動部材を
回転させることにより、全体の形状を偏平で小型
としたアクチユエータを提供することにある。(Problems to be solved by the present invention) The present invention solves the drawbacks of conventional linear actuators. By eliminating idle coils and allowing current to flow through all coils at the same time, coil usage efficiency is increased, unnecessary volume and weight are reduced, and driving force is generated. An object of the present invention is to provide an actuator whose overall shape is flat and compact by rotating a movable member.

（問題点を解決するための手段） 本考案は、適宜の固定部材へ枢支された導磁性
回転軸と、該回転軸と偏平面を直交して、その回
転軸の途中に固設された円盤状の回転ヨーク部材
と、該回転ヨーク部材の一側面に、回転軸を中心
にして円形に、しかも、互いに隣接するもの同士
が回転軸の軸線方向と平行して磁化された磁化方
向を相互に逆極性に、かつ、円周を等分して偶数
個数設けられた偏平な扇形永久磁石と、該扇形永
久磁石と平行に所要の空隙をもつて対面し、か
つ、同一平面において所要の間隔をとつて円形に
配列された複数個の偏平な分割ヨーク部材と、前
記回転軸と磁気的に連結し、かつ、固定部材に回
転不可に設けられた固定ヨーク部材と複数の分割
ヨーク部材をそれぞれに磁気結合する複数の鉄心
部材と、該複数の鉄心部材それぞれに巻回された
複数個のコイルとを備えてなる鉄心型のロータリ
ーアクチユエータに関する。(Means for Solving the Problems) The present invention consists of a magnetically permeable rotating shaft pivotally supported on an appropriate fixed member, and a magnetically permeable rotating shaft fixed in the middle of the rotating shaft, perpendicular to the rotating shaft and the flat plane. A disc-shaped rotating yoke member and one side of the rotating yoke member are arranged in a circular manner around the rotating shaft, and the magnetization directions of adjacent members are mutually magnetized parallel to the axial direction of the rotating shaft. An even number of flat sector-shaped permanent magnets are provided with opposite polarity and equally dividing the circumference, and facing parallel to the sector-shaped permanent magnets with a required gap, and at a required interval on the same plane. a plurality of flat split yoke members arranged in a circle with a fixed yoke member magnetically connected to the rotating shaft and non-rotatably provided on a fixed member, and a plurality of split yoke members, respectively. The present invention relates to an iron core type rotary actuator comprising a plurality of iron core members magnetically coupled to a plurality of iron core members and a plurality of coils wound around each of the plurality of iron core members.

（実施例） 第１図乃至第７図は、本考案の一実施例を示す
もので、以下図面に基づき本考案を説明する。(Embodiment) FIGS. 1 to 7 show an embodiment of the present invention, and the present invention will be explained below based on the drawings.

１は偏平なケースを兼ねた固定部材で、該固定
部材１は、内部が中空なベース本体１ａと蓋１ｂ
とが適宜ねじ止め等をもつて固定されてなる。 Reference numeral 1 denotes a fixing member that also serves as a flat case, and the fixing member 1 includes a hollow base body 1a and a lid 1b.
and are fixed with appropriate screws or the like.

２は、回転可動体で、該回転可動体２は、円盤
状の回転ヨーク部材３が、その偏平な平面を、当
該回転可動体の回転軸４の軸線と直交させて、回
転軸４の途中に固設されている。 Reference numeral 2 denotes a rotary movable body, and the rotary movable body 2 has a disc-shaped rotary yoke member 3 that is rotated midway along the rotary shaft 4 with its flat plane orthogonal to the axis of the rotary shaft 4 of the rotary movable body. It is fixedly installed.

回転軸４は、比較的透磁率の高い鉄等の磁性体
でなり、その回転軸４は、固定部材１の中央にお
いて、ベース本体１ａの偏平面に対して回転軸４
を直交して、その固定部材１の中空内に回転自在
に設けられている。 The rotating shaft 4 is made of a magnetic material such as iron that has relatively high magnetic permeability, and the rotating shaft 4 is located at the center of the fixed member 1 so that the rotating shaft 4 is aligned with the flat surface of the base body 1a.
are rotatably provided in the hollow of the fixing member 1, orthogonal to each other.

回転可動体２の回転ヨーク部材３が底壁１ｃと
対向する側には、円周を偶数等分する複数個の偏
平な扇形永久磁石、例えば、円周を４分割する４
個の偏平な扇型永久磁石５ａ，５ｂ，５ｃ，５ｄ
が固設されている。 On the side where the rotary yoke member 3 of the rotary movable body 2 faces the bottom wall 1c, there are a plurality of flat sector-shaped permanent magnets that divide the circumference into an even number of equal parts, for example, four flat sector-shaped permanent magnets that divide the circumference into four.
flat fan-shaped permanent magnets 5a, 5b, 5c, 5d
is permanently installed.

各扇型永久磁石５ａ〜５ｄは、磁化方向が回転
軸４の軸線と平行する方向（第１図に示す磁石の
厚み方向）に磁化されており、かつ、互いに隣接
する磁石同士は、逆極性にしてあり、しかも、各
扇型永久磁石５ａ〜５ｄの配列状態は、中心部が
円形に切り取られた偏平なドーナツ状を呈してい
る。 Each of the fan-shaped permanent magnets 5a to 5d is magnetized in a direction parallel to the axis of the rotating shaft 4 (thickness direction of the magnet shown in FIG. 1), and adjacent magnets have opposite polarity. In addition, the fan-shaped permanent magnets 5a to 5d are arranged in a flat donut shape with a circular cutout in the center.

ベース本体１ａの底壁１ｃの内面には、偏平な
固定子６が設けられている。 A flat stator 6 is provided on the inner surface of the bottom wall 1c of the base body 1a.

固定子６は、底壁１ｃに接着材等で固定された
固定ヨーク部材８ａ，８ｂ，８ｃ，８ｄと、固定
ヨーク部材７と、偏平な平面形が扇型永久磁石５
ａ〜５ｄに相似して扇形を呈する分割ヨーク部材
７と各分割ヨーク部材８ａ〜８ｄをそれぞれに磁
気的に連結する鉄心部材９ａ，９ｂ，９ｃ，９ｄ
と、各鉄心部材９ａ〜９ｄそれぞれに巻回された
コイル１０ａ，１０ｂ，１０ｃ，１０ｄとを備え
ている。 The stator 6 includes fixed yoke members 8a, 8b, 8c, and 8d fixed to the bottom wall 1c with an adhesive or the like, a fixed yoke member 7, and a flat permanent magnet 5 having a fan-shaped planar shape.
Iron core members 9a, 9b, 9c, and 9d magnetically connect the divided yoke member 7 similar to a to 5d and exhibiting a fan shape, and each of the divided yoke members 8a to 8d.
and coils 10a, 10b, 10c, and 10d wound around each of the iron core members 9a to 9d.

この固定子６における固定ヨーク部材の中央に
は、若干内側に折曲された筒状の磁気連結部７ａ
が設けられ、該磁気連結部７ａには回転軸４の一
端（第１図中下端）が嵌合され、これにより、回
転可動体２の回転ヨーク部材３と、固定子６の固
定ヨーク部材７とを回転軸を介して磁気結合して
いる。 In the center of the fixed yoke member of the stator 6, there is a cylindrical magnetic coupling part 7a bent slightly inward.
One end (lower end in FIG. 1) of the rotating shaft 4 is fitted into the magnetic coupling portion 7a, thereby connecting the rotating yoke member 3 of the rotary movable body 2 and the fixed yoke member 7 of the stator 6. and are magnetically coupled via a rotating shaft.

なお、回転軸４の軸受は、磁気連結部７ａが軸
受を兼ねてもよいし、べつに底壁１ｃに軸受孔を
設けて軸受してもよく、また、回転軸４の他端
（第１図中上端）は、蓋１ｂの中央において外側
に突設されたボス１ｄのボス孔１ｅに嵌合され
て、軸受されている。 As for the bearing of the rotating shaft 4, the magnetic coupling part 7a may also serve as a bearing, or a bearing hole may be separately provided in the bottom wall 1c to receive the bearing, or the other end of the rotating shaft 4 (see FIG. The middle upper end) is fitted into a boss hole 1e of a boss 1d projecting outward at the center of the lid 1b, and is supported by a bearing.

分割ヨーク部材８ａ〜８ｄは、第２図に示す如
く、扇形永久磁石５ａ〜５ｄと同様に、その扇形
永久磁石５ａ〜５ｄの配列平面と平行する同一平
面に円形に配列され、かつ、互いに隣接して径方
向を向く縁同士は、所要の空隙Ｇをもつて離間し
ている。 As shown in FIG. 2, like the sector-shaped permanent magnets 5a-5d, the divided yoke members 8a-8d are arranged circularly on the same plane parallel to the arrangement plane of the sector-shaped permanent magnets 5a-5d, and are adjacent to each other. The edges facing in the radial direction are separated by a required gap G.

また、扇形永久磁石５ａ〜５ｄと分割ヨーク部
材８ａ〜８ｄは、回転軸４の軸心と同心をなし、
かつ、対向面を正対させて円形に配列され、その
対向面同士は、所要の空隙ｇを離間して平行して
いる。 Further, the sector-shaped permanent magnets 5a to 5d and the divided yoke members 8a to 8d are concentric with the axis of the rotating shaft 4,
Moreover, they are arranged in a circle with opposing surfaces directly facing each other, and the opposing surfaces are parallel to each other with a required gap g between them.

固定ヨーク部材７と各分割ヨーク部材８ａ〜８
ｄは、それぞれに鉄心部材９ａ〜９ｄを介して磁
気的に結合され、その鉄心部材９ａ〜９ｄには、
固定ヨーク部材７と分割ヨーク部材８ａ〜８ｄと
の間隔を決めるスペーサを兼ねた巻芯材１１を嵌
合して、その巻芯材１１にコイル１０ａ〜１０ｄ
が巻回されている。 Fixed yoke member 7 and each divided yoke member 8a to 8
d are magnetically coupled to each other via iron core members 9a to 9d, and the iron core members 9a to 9d include
A winding core material 11 that also serves as a spacer for determining the distance between the fixed yoke member 7 and the divided yoke members 8a to 8d is fitted, and the coils 10a to 10d are fitted onto the winding core material 11.
is wound.

鉄心部材９ａ〜９ｄの両端は、固定ヨーク部材
７並びに分割ヨーク部材８ａ〜８ｄにそれぞれカ
シメ止めされている。 Both ends of the iron core members 9a to 9d are caulked to the fixed yoke member 7 and the divided yoke members 8a to 8d, respectively.

各分割ヨーク部材８ａ〜８ｄの扇形面における
鉄心部材９ａ〜９ｄの取付け位置は、磁気的な作
用に関して特定する必要がなく、例えば、実施例
における４個の各コイル１０ａ〜１０ｄが、その
コイル１０ａ〜１０ｄが並べられる空間におい
て、最も多くの巻線が施せる位置、即ち、最大の
巻径が得られ位置等に適宜定めることができる。 The mounting positions of the iron core members 9a to 9d on the fan-shaped surfaces of the divided yoke members 8a to 8d do not need to be specified in terms of magnetic action, and for example, each of the four coils 10a to 10d in the embodiment is In the space where ~10d are arranged, the position where the largest number of windings can be applied, that is, the position where the maximum winding diameter can be obtained, can be appropriately determined.

このようにしてなる固定子６は、前記回転軸４
と固定ヨーク部材７を磁気結合する磁気結合部７
ａを介して、扇形永久磁石５ａ〜５ｄの両面を結
ぶ静的な磁力線を通す磁路を形成し、その磁路を
通つた磁力線は、扇形永久磁石５ａ〜５ｄと分割
ヨーク部材８ａ〜８ｄの間の空隙Ｇに集束してい
る。 The stator 6 formed in this way is constructed by the rotating shaft 4
and the fixed yoke member 7.
a, a magnetic path is formed through which static lines of magnetic force connect both sides of the sector-shaped permanent magnets 5a to 5d. They are concentrated in the gap G between them.

また、コイル１０ａ〜１０ｄは、分割ヨーク部
材８ａ〜８ｄに継がる各磁路に磁力線を重畳しう
るように結合している。 Further, the coils 10a to 10d are coupled so that lines of magnetic force can be superimposed on each magnetic path connected to the divided yoke members 8a to 8d.

扇形永久磁石５ａ〜５ｄと分割ヨーク部材８ａ
〜８ｄの重なり具合は、分割ヨーク部材８ａ〜８
ｄ間の空隙の方向線をＸ−X′線、Ｙ−Y′線とし、
扇形永久磁石５ａ〜５ｄの合わせ目、即ち、磁極
の境界をｘ−x′線、ｙ−y′線とするとき、Ｘ−
X′線、Ｙ−Y′線に対するｘ−x′線、ｙ−y′線は、
第６図に示す正回転（同図時計廻り）駆動開始位
置ではθ_A度、例えば、実施例ではθ_A＝15度、ま
た、第８図に示す逆回転（同図反時計廻り）駆動
開始位置では、θ_B度、例えば、実施例ではθ_B＝15
度、それぞれの回転方向へ向けて進み角度でずれ
ている。 Sector-shaped permanent magnets 5a to 5d and split yoke member 8a
The overlapping condition of ~8d is the split yoke members 8a~8.
Let the direction lines of the gap between d be X-X' line and Y-Y' line,
When the joints of the sector-shaped permanent magnets 5a to 5d, that is, the boundaries of the magnetic poles, are x-x' lines and y-y' lines, X-
The x-x' line and y-y' line for the X' line and Y-Y' line are
At the forward rotation (clockwise in the figure) drive start position shown in Figure 6, θ _A degrees, for example, θ _A = 15 degrees in the example, and in the reverse rotation (counterclockwise in the figure) drive start position shown in Figure 8. In position, θ _B degrees, for example θ _B = 15 in the example
degree, and are shifted by an advancing angle toward each direction of rotation.

この正回転駆動開始位置、及び、逆回転駆動開
始位置を得るための回転可動体２の位置決め手段
は、本考案の要旨とするところではないが、一例
を示すと、第５図に示す如く、回転軸４から、そ
の回転力を外部へ取り出す出力レバー１２の回転
範囲適所に、その出力レバー１２の余分な方向へ
の回転を邪魔する、ストツパ１３ａ，１３ｂを設
けるとよい。 The means for positioning the rotary movable body 2 to obtain the forward rotation drive start position and the reverse rotation drive start position are not the gist of the present invention, but as an example, as shown in FIG. It is preferable to provide stoppers 13a and 13b at appropriate positions in the rotation range of the output lever 12, which extracts the rotational force from the rotating shaft 4 to the outside, to prevent the output lever 12 from rotating in an unnecessary direction.

（作用） 第７図は、第６図に示す回転可動体２の正回転
駆動開始位置における、各鉄心部材９ａ〜９ｄの
中心を結ぶ線Ｑの展開図、同じく、第９図は、第
８図に示す回転可動体２の逆回転駆動開始位置お
ける、各鉄心部材９ａ〜９ｄの中心を結ぶ線Ｑの
展開図で、以下、この展開図に基づいて駆動作用
を説明する。(Function) FIG. 7 is a developed view of a line Q connecting the centers of each iron core member 9a to 9d at the forward rotation drive start position of the rotary movable body 2 shown in FIG. This is a developed view of a line Q connecting the centers of each of the iron core members 9a to 9d at the reverse rotation drive start position of the rotary movable body 2 shown in the figure, and the driving action will be described below based on this developed view.

正回転駆動時に各コイル１０ａ〜１０ｄに流す
電流方向、即ち、、鉄心部材９ａ〜９ｄの励磁方
向は、各鉄心部材９ａ〜９ｄと磁気的に結合して
いる各分割ヨーク部材８ａ〜８ｄそれぞれと、そ
の分割ヨーク部材８ａ〜８ｄに対向している扇形
永久磁石５ａ〜５ｄとの重なり面積が最も大きな
扇形永久磁石５ａ〜５ｄの磁界方向と逆向きの磁
界（電磁作用としては、反発する向き）となるよ
うに、各コイル１０ａ〜１０ｄへ同時に電流が流
される。その際の各磁極の極性は、第７図に示す
如くなる。 The direction of current flowing through each of the coils 10a to 10d during normal rotational driving, that is, the direction of excitation of the core members 9a to 9d, is the same as that of each of the divided yoke members 8a to 8d, which are magnetically coupled to each of the core members 9a to 9d. , a magnetic field in the opposite direction to the magnetic field direction of the sector-shaped permanent magnets 5a-5d that have the largest overlapping area with the sector-shaped permanent magnets 5a-5d facing the divided yoke members 8a-8d (in terms of electromagnetic action, the direction of repulsion) Current is simultaneously applied to each of the coils 10a to 10d so that. The polarity of each magnetic pole at this time is as shown in FIG.

このコイル１０ａ〜１０ｄによつて各鉄心部材
９ａ〜９ｄに発生される磁力線は、前述の如く各
扇形永久磁石５ａ〜５ｄが出す磁力線んを通す磁
路内において、その磁力線と重畳する。 The lines of magnetic force generated in the core members 9a-9d by the coils 10a-10d overlap with the lines of magnetic force generated by the sector-shaped permanent magnets 5a-5d in the magnetic path passing through them, as described above.

固定子６に対する回転可動体２の位相は、前述
の如く、扇形永久磁石５ａ〜５ｄと分割ヨーク部
材８ａ〜８ｄの各扇型が正対する位置より角度θ_A
だけ予め正回転方向に進めてあり、それにより、
各扇形永久磁石５ａ〜５ｄは、進み角度θ_Aにほぼ
等しい分だけ同一磁化方向（磁気作用として吸引
する向き）に磁化された鉄心部材９ａ〜９ｄに係
る分割ヨーク部材８ａ〜８ｄとの重なりをもつ。 As described above, the phase of the rotary movable body 2 with respect to the stator 6 is determined by an angle _θ
has been advanced in the forward rotation direction in advance, and as a result,
Each of the sector-shaped permanent magnets 5a to _5d overlaps with the divided yoke members 8a to 8d related to the iron core members 9a to 9d, which are magnetized in the same magnetization direction (the direction of attraction as a magnetic action) by an amount approximately equal to the advance angle θ A. Motsu.

この結果、図示の如く各鉄心部材９ａ〜９ｄが
磁化されると、少ない面積の重なりをもつて扇形
永久磁石５ａ〜５ｄと同一磁化方向（吸引する方
向）に磁化された鉄心の方向に、その扇形永久磁
石５ａ〜５ｄが吸引されて、回転可動体２に正方
向の回転力を発生する。 As a result, when each of the core members 9a to 9d is magnetized as shown in the figure, the core members 9a to 9d are magnetized in the same magnetization direction (attracting direction) as the sector-shaped permanent magnets 5a to 5d, with a small area of overlap. The sector-shaped permanent magnets 5a to 5d are attracted and generate a positive rotational force in the rotary movable body 2.

この回転力は、扇形永久磁石５ａ〜５ｄの磁化
方向と同一磁化方向をもつ鉄心部材９ａ〜９ｄの
分割ヨーク部材８ａ〜８ｄと、当該扇形永久磁石
５ａ〜５ｄとの重なり面積が最大となるまで、矢
印Ａで示す正方向に発生する。 This rotational force is applied until the overlapping area of the sector-shaped permanent magnets 5a-5d and the divided yoke members 8a-8d of the iron core members 9a-9d, which have the same magnetization direction as the sector-shaped permanent magnets 5a-5d, reaches the maximum. , occurs in the positive direction shown by arrow A.

しかし、実質的には、前記重なり面積が最大と
なる位相、即ち、、ｘ−x′線とＹ−Y′線が重なる
位相の少し手前の角度θ_Bでストツパ１３ｂによ
り、回転可動体２の回転は抑止され、その時点で
各コイル１０ａ〜１０ｄの電流は同時に遮断され
る。 However, in reality, the rotation movable body 2 is rotated by the stopper 13b at an angle θ _B slightly before the phase where the overlapping area is maximum, that is, the phase where the x-x' line and the Y-Y' line overlap. Rotation is inhibited, and at that point the current in each coil 10a-10d is cut off simultaneously.

このストツパ１３ｂによる停止位置は、正回転
駆動時のストロークエンドであり、かつ、逆回転
駆動の駆動開始点でもあり、この位置での停止状
態を第８図、第９図に示す。 The stop position by this stopper 13b is the stroke end during forward rotation drive, and is also the start point of reverse rotation drive, and the stopped state at this position is shown in FIGS. 8 and 9.

逆回転駆動開始位置においては、前記の如く矢
印Ｂで示す逆回転（第８図反時計廻り）方向に角
度θ_Bだけ、ｘ−x′線とＹ−Y′線が重なる最大の整
合位置（死点）から回転可動体２が予め進められ
た位置にあつて、扇形永久磁石５ａ〜５ｄと分割
ヨーク部材８ａ〜８ｄの重なり面積の少ない方の
扇形永久磁石５ａ〜５ｄと同一磁化方向に磁化さ
れた鉄心の方向に、その扇形永久磁石５ａ〜５ｄ
が吸引されて、回転可動体２に逆方向の回転力を
発生する。 At the _reverse rotation drive start position, as described above, the maximum alignment position ( When the rotating movable body 2 is in the advanced position from the dead center (dead center), it is magnetized in the same magnetization direction as the sector-shaped permanent magnets 5a-5d that have a smaller overlapping area between the sector-shaped permanent magnets 5a-5d and the divided yoke members 8a-8d. The fan-shaped permanent magnets 5a to 5d are placed in the direction of the iron core.
is attracted and generates a rotational force in the opposite direction in the rotary movable body 2.

この正回転及び逆回転にストローク角αは、扇
形永久磁石５ａ〜５ｄ及び分割ヨーク部材８ａ〜
８ｄの扇形の開き角度βから、前記それぞれの駆
動方向への進み角度θ_A、θ_Bの和を引いた角度とな
り、実施例では、扇形が４個で円形を形成してい
ることから、β＝90°となり、また、θ_A＝15°、θ_B
＝15°であるとから、ストローク角αは60°として
得られる。 The stroke angle α for this forward rotation and reverse rotation is determined by the sector-shaped permanent magnets 5a to 5d and the divided yoke members 8a to
It is the angle obtained by subtracting the sum of the advancing angles θ _A and θ _B in the respective driving directions from the opening angle β of the fan shape of 8d. In the example, since four sectors form a circle, β = 90°, and θ _A = 15°, θ _B
= 15°, the stroke angle α is obtained as 60°.

駆動方向に係る各進み角度θ_A、θ_Bは、必要とさ
れる起動トルクによつて任意に、かつ、各進み角
度θ_A、θ_B毎に別々に設定することができ、この進
み角度θ_A、θ_Bが大きくなると起動トルクは大きく
なるが、ストローク角度αは小さくなる。 Each advance angle θ _A and θ _B related to the drive direction can be arbitrarily set depending on the required starting torque and separately for each advance angle θ _A and θ _B. As _A and θ _B increase, the starting torque increases, but the stroke angle α decreases.

また、進み角度θ_A、θ_Bによつて、正逆駆動方向
のストロークエンドにおける出力トルクを変化す
ることができる。例えば、正回転駆動におけるス
トロークエンドは、逆回転方向の進み角度θ_Bの位
置で停止させられるが、ｘ−x′線がＹ−Y′線と重
なる位置で最大の吸引力が回転可動体１と固定子
６の間に作用することから、進み角度θ_Bが小さい
程、正回転時のストロークエンドにおける出力ト
ルクの値は大となる。 Further, the output torque at the stroke end in the forward and reverse drive directions can be changed by adjusting the advance angles θ _A and θ _B. For example, the stroke end in forward rotation drive is stopped at the advance angle θ _B in the reverse rotation direction, but the maximum suction force is applied to the rotating movable body at the position where the x-x' line overlaps the Y-Y' line. and the stator 6, the smaller the advancing angle θ _B , the larger the value of the output torque at the stroke end during forward rotation.

このことは、施解錠装置等の往復機構において
は、往時の操作力と復時の操作力が相違すること
があつても、起動トルクとストロークエンドの出
力トルクとを、進み角度θ_A、θ_Bの選択によつて適
合させることができる。 This means that in a reciprocating mechanism such as a lock/unlock device, even if the previous operating force and the returning operating force are different, the starting torque and the output torque at the end of the stroke can be adjusted to advance angles θ _A , θ It can be adapted by selecting _B.

さらに、起動トルク、出力トルク等は、各扇形
永久磁石５ａ〜５ｄ固有の磁束密度及び各コイル
１０ａ〜１０ｄが発生する磁束密度にもよるが、
それらを一定とした場合、各扇形永久磁石５ａ〜
５ｄと各分割ヨーク部材８ａ〜８ｄとの重なり面
積によつてトルクが決まり、各コイル１０ａ〜１
０ｄの位置、即ち、鉄心部材９ａ〜９ｄと取付け
位置は、起動トルク、出力トルク等を決める重要
な要素にはなつていない。 Furthermore, the starting torque, output torque, etc. depend on the magnetic flux density specific to each sector-shaped permanent magnet 5a to 5d and the magnetic flux density generated by each coil 10a to 10d.
If these are constant, each sector-shaped permanent magnet 5a~
5d and each of the divided yoke members 8a to 8d determines the torque, and each coil 10a to 1
The position of 0d, that is, the iron core members 9a to 9d and the mounting position is not an important factor in determining the starting torque, output torque, etc.

これにより、各コイル１０ａ〜１０ｄの位置
は、回転可動体２の構造に対して拘束されず、比
較的自由に、ベース本体１ａの空間内に配置する
ことができるため、コイルを配置しうる限られた
空間内において、コイルの中心位置を考慮するこ
となく、コイルの巻径を最大としうる鉄心の位置
を定めて、狭い空間にコイルを効率良く配置する
ことができる。 As a result, the positions of the coils 10a to 10d are not restricted to the structure of the rotary movable body 2, and can be relatively freely arranged within the space of the base body 1a, so that the coils can be arranged within the limits. The coil can be efficiently arranged in a narrow space by determining the position of the core where the winding diameter of the coil can be maximized without considering the center position of the coil.

また、各コイル１０ａ〜１０ｄの巻方及び形状
は、特殊なものでなく、一般的な円形の多層単巻
コイルでよく、本考案に係るコイルの好ましい形
状は、コイル長が巻径に比較して非常に短した偏
平な形状をもつことである。なお、各コイル１０
ａ〜１０ｄは、プリント配線技術によつて得られ
るシートコイルを多層構造にしたものであつても
よい。 Further, the winding method and shape of each of the coils 10a to 10d are not special, and may be general circular multilayer single-turn coils. It has a very short and flat shape. In addition, each coil 10
A to 10d may be multilayered sheet coils obtained by printed wiring technology.

（効果） 以上の如く、本考案によれば、複数個のコイル
全部に同時に電流を流すことにより、駆動力の発
生に寄与しない遊びコイルをなくしたためコイル
の利用効率が高く、かつ大きな駆動力を得ること
ができるとともに、従来のものと同一駆動力を得
るには容積を小さくすることができる。(Effects) As described above, according to the present invention, by passing current through all multiple coils at the same time, idle coils that do not contribute to the generation of driving force are eliminated, resulting in high coil utilization efficiency and large driving force. At the same time, the volume can be reduced to obtain the same driving force as the conventional one.

また、可動体を回転式にすることにより、必要
とするリニアストロークに係らず磁気作用部の構
造をコンパクトにするとともに、アクチユエータ
としての全体形状を偏平なものとし、かつ、その
偏平な構造の中でコイルを収容する限られた偏平
な空間に、自由度の高いコイル配置を可能にし
て、コイル利用効率を高め、もつて、小型偏平で
効率の高いアクチユエータを提供することができ
る。 In addition, by making the movable body rotary, the structure of the magnetic action part can be made compact regardless of the required linear stroke, and the overall shape of the actuator can be made flat. This makes it possible to arrange the coils with a high degree of freedom in a limited flat space in which the coils are accommodated, thereby increasing coil utilization efficiency, and thereby providing a compact, flat and highly efficient actuator.

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

図は本考案の一実施例を示すもので、第１図
は、本考案に係るロータリーアクチユエータの中
央縦断面図、第２図は第１図の−線横断平面
図、第３図は、第２図の−線縦断面図、第４
図は、第１図の−線横断平面図、第５図は、
第１図の平面図、第６図は、正転駆動開始位置に
おける第１図の−線横断面図、第７図は、第
６図の各鉄心を結ぶ中心線Ｑにおける展開図、第
８図は、逆転駆動開始位置における第６図と同様
な横断面図、第９図は、第８図の各鉄心を結ぶ中
心線Ｑにおける展開図である。 １……固定部材、１ａ……ベース本体、１ｂ…
…蓋、１ｃ……底壁、１ｄ……ボス、１ｅ……ボ
ス孔、２……回転可動体、３……回転ヨーク部
材、４……回転軸、５ａ〜５ｄ……扇形永久磁
石、６……固定子、７……固定ヨーク部材、７ａ
……磁気連結部、８ａ〜８ｄ……分割ヨーク部
材、９ａ〜９ｄ……鉄心部材、１０ａ〜１０ｄ…
…コイル、１１……巻芯材、１２……出力レバ
ー、１３ａ，１３ｂ……ストツパ。 The drawings show an embodiment of the present invention, in which Fig. 1 is a central vertical sectional view of a rotary actuator according to the invention, Fig. 2 is a cross-sectional plan view taken along the - line in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line - , - line vertical sectional view of Fig. 2, No. 4
The figure is a - line cross-sectional plan view of Fig. 1, and Fig. 5 is a
1 is a plan view, FIG. 6 is a cross-sectional view taken along the - line in FIG. 1 at the normal rotation drive start position, FIG. The figure is a cross-sectional view similar to FIG. 6 at the reverse drive start position, and FIG. 9 is a developed view at the center line Q connecting each iron core in FIG. 8. 1... Fixed member, 1a... Base body, 1b...
... Lid, 1c ... Bottom wall, 1d ... Boss, 1e ... Boss hole, 2 ... Rotating movable body, 3 ... Rotating yoke member, 4 ... Rotating shaft, 5a to 5d ... Fan-shaped permanent magnet, 6 ... Stator, 7 ... Fixed yoke member, 7a
...Magnetic connection portion, 8a-8d...Divided yoke member, 9a-9d...Iron core member, 10a-10d...
... Coil, 11 ... Winding core material, 12 ... Output lever, 13a, 13b ... Stopper.

Claims (1)

【実用新案登録請求の範囲】 適宜の固定部材へ枢支された導磁性回転軸と、
該回転軸と偏平面を直交して、その回転軸の途中
に固設された円盤状回転ヨーク部材と、 該回転ヨーク部材の一側面に、回転軸を中心に
して円形に、しかも、互いに隣接するもの同士が
回転軸の軸線方向と平行して磁化された磁化方向
を相互に逆極性に、かつ、円周を等分して偶数個
設けられた偏平な扇形永久磁石と、 該扇形永久磁石と平行に所要の空隙をもつて対
面し、かつ、同一平面において所要の間隔をとつ
て円形に配列された複数個の偏平な分割ヨーク部
材と、 前記回転軸と磁気的に連結し、かつ、固定部材
に回転不可に設けられた固定ヨーク部材と、 該固定ヨーク部材と複数の分割ヨーク部材をそ
れぞれに磁気結合する複数の鉄心部材と、 該複数の鉄心部材それぞれに巻回された複数個
のコイルとを備えてなることを特徴とする鉄心型
ロータリーアクチユエータ。[Claims for Utility Model Registration] A magnetically permeable rotating shaft pivotally supported on an appropriate fixed member;
A disk-shaped rotating yoke member is fixed in the middle of the rotating axis, perpendicular to the rotating axis and the flat plane; an even number of flat sector-shaped permanent magnets, each of which is magnetized parallel to the axial direction of the rotating shaft and whose magnetization directions are opposite to each other, and whose circumference is equally divided; and the sector-shaped permanent magnet. a plurality of flat divided yoke members facing each other with a required gap in parallel with the rotation axis and arranged in a circle at a required interval on the same plane; magnetically coupled to the rotating shaft; A fixed yoke member non-rotatably provided on the fixed member; a plurality of core members magnetically coupling the fixed yoke member and the plurality of split yoke members to each other; and a plurality of core members wound around each of the plurality of core members. An iron core rotary actuator characterized by comprising a coil.