JPH0357111Y2 - - Google Patents

Description

【考案の詳細な説明】[Detailed explanation of the idea] 【産業上の利用分野】[Industrial application field]

本考案は、複数の出力軸を備え、複数の機器を
同時に駆動するモータアクチユエータに関すし、
特に中空のモータシヤフトに出力軸を連結したモ
ータアクチユエータに関する。 The present invention relates to a motor actuator that is equipped with multiple output shafts and drives multiple devices at the same time.
In particular, the present invention relates to a motor actuator in which an output shaft is connected to a hollow motor shaft.

【従来の技術】 モータアクチユエータにおいて、駆動される各
種機器側の軸の振動、芯ブレ等を緩衝してモータ
を保護するため、モータのシヤフトを中空にし
て、この中空モータシヤフトおよび出力軸に孔を
設け、出力軸に貫通したピンによつて出力軸を中
空モータシヤフトに対し傾動可能に連結する構造
がある。 第４図に示すモータアクチユエータ２０では、
中空のモータシヤフト２１、および出力軸２２に
夫々、軸に直角な連結用の円形の孔２１ａ，２２
ａを穿設し、孔２１ａに遊合、孔２２ａに圧入と
なるピン２３によつて、モータシヤフト２１と出
力軸２２とを連結した後、他の部材を組付け、フ
ロントケース２４に固設され、フロントケース２
４の外側に突出する出力軸用ガイドブツシユ２５
に出力軸２２を挿入し組立てている。 この構造においては、ピン２３と孔２１ａとの
遊合およびモータシヤフト２１と出力軸２２との
隙間によつて、緩衝の機能はあるが、ピン２３と
孔２１ａとがモータ回転方向において遊びを持つ
ため、モータの回転が各種機器側に正確に伝達さ
れないという重大な欠点を有し、組立作業におい
ても、連結用のピン２３の圧入は、モータシヤフ
ト２１にモータシヤフト２１より若干細い出力軸
２２を挿入して、孔２１ａと孔２２ａとを合わせ
て行うことになるので作業がやりにくく、特に、
ピン２３をモータシヤフト２１の両側に均等に突
出させることが困難であるという欠点がある。 また、この構造の出力軸を主出力軸とし、歯車
機構で連動させて副出力軸を設け、主副出力軸
夫々が駆動する機器相互の動作を同期させるため
には、機器側ロツド先端の舌片状突起と係合する
各出力軸先端のスリワリ状の溝（第４図の出力軸
２２の場合２２ｂ）相互のなす角度の精度が重要
であるが、この構造においては、ピン２３と孔２
１ａとが回転方向において遊びをもつので、スリ
ワリ状の溝２２ｂを基準として用いても、機器相
互の動作を精度よく同期させることができないと
いう欠点がある。 緩衝機能をもつ他の連結構造として、出力軸の
モータ側端部を断面小判形とし、これより一回り
大きい小判形の穴をモータシヤフトに設けて嵌め
込み、連結した従来例を第５〜６図に示す。第５
図はモータアクチユエータの部分断面、第６図は
連結部の分解構成図である。 モータアクチユエータ３０は、主出力軸３２お
よび副出力軸３３の２個の出力軸を備え、夫々モ
ータ側端部に断面小判形の連結部３２ａ，３３ａ
を有する。３１はモータシヤフトと一体に形成さ
れた駆動歯車で、歯車側に軸を中心とする段付き
の底付き穴、すなわち、端面側には断面円形の穴
３１ａが、穴３１ａの底部には連結部３２ａより
一回り大きい小判形の穴３１ｂが穿設されてい
る。３４は駆動歯車３１と噛合う従動歯車で、モ
ータ側に軸受板３５の軸受孔３５ａに嵌挿される
軸部３４ａを有し、軸を中心とする段付きの貫通
孔、すなわち、モータ側に連結部３３ａよりも一
回り大きい小判形の孔３４ｂが、出力側にはフロ
ントケース３６に固設された副出力軸用ガイドブ
ツシユ３７のフロントケース３６内側への突出部
３７ａの外周に軸支される断面円形の穴３４ｃが
穿設されている。 しかしながら、この構造においても、緩衝の目
的で連結部３２ａと穴３１ｂ、および、連結部３
３ａと孔３４ｂの嵌め合いに遊びを設けているこ
とから、機器側ロツド先端の舌片状突起と係合す
る主出力軸３２および副出力軸３３夫々の先端の
スリワリ状の溝３２ｂ，３３ｂ相互のなす角度の
精度が得にくく、また、形状が複雑で、特に駆動
歯車３１は、加工方法が焼結等に限定されるの
で、コストが高いという欠点がある。 薄型化のためには、軸受板３５と副出力軸用ガ
イドブツシユ３７の突出部３７ａとを近接させね
ばならないが、従動歯車３４の円滑な動きを得る
ためには各部品の寸法精度および位置精度の向上
が必須で、さらにコストが高くなる。[Prior Art] In a motor actuator, in order to protect the motor by buffering vibrations, core vibrations, etc. of the shaft of various driven devices, the shaft of the motor is made hollow, and the hollow motor shaft and output shaft are There is a structure in which a hole is provided in the shaft and the output shaft is tiltably connected to the hollow motor shaft by a pin passing through the output shaft. In the motor actuator 20 shown in FIG.
The hollow motor shaft 21 and the output shaft 22 are provided with circular holes 21a and 22 for connection perpendicular to the shaft, respectively.
After connecting the motor shaft 21 and the output shaft 22 with a pin 23 that is loosely fitted into the hole 21a and press-fitted into the hole 22a, other members are assembled and fixed to the front case 24. and front case 2
Output shaft guide bush 25 protruding outside of 4
The output shaft 22 is inserted and assembled. In this structure, the play between the pin 23 and the hole 21a and the gap between the motor shaft 21 and the output shaft 22 provide a buffering function, but the pin 23 and the hole 21a have play in the motor rotation direction. Therefore, there is a serious drawback that the rotation of the motor is not accurately transmitted to various devices, and even during assembly work, press-fitting the connecting pin 23 requires inserting the output shaft 22 into the motor shaft 21, which is slightly thinner than the motor shaft 21. The work is difficult because it has to be inserted and the holes 21a and 22a are aligned.
A disadvantage is that it is difficult to make the pins 23 protrude evenly on both sides of the motor shaft 21. In addition, the output shaft of this structure is the main output shaft, and a sub-output shaft is provided by interlocking with the gear mechanism.In order to synchronize the operations of the devices driven by the main and sub-output shafts, it is necessary to The precision of the angle between the slotted grooves at the tip of each output shaft (22b in the case of the output shaft 22 in FIG. 4) that engage with the protrusions is important, but in this structure,
1a has play in the direction of rotation, so even if the slotted groove 22b is used as a reference, there is a drawback that the mutual operations of the devices cannot be precisely synchronized. As another connection structure with a buffering function, the motor side end of the output shaft has an oval cross-section, and a slightly larger oval-shaped hole is provided in the motor shaft and inserted into the hole to connect the conventional example, as shown in Figures 5 and 6. Shown below. Fifth
The figure is a partial cross section of the motor actuator, and FIG. 6 is an exploded configuration diagram of the connecting portion. The motor actuator 30 includes two output shafts, a main output shaft 32 and a sub-output shaft 33, each of which has connecting portions 32a and 33a each having an oval cross section at the end on the motor side.
has. 31 is a drive gear formed integrally with the motor shaft, and the gear side has a stepped bottom hole centered around the shaft, that is, the end face side has a hole 31a with a circular cross section, and the bottom of the hole 31a has a connecting part. An oval-shaped hole 31b, which is one size larger than 32a, is bored. 34 is a driven gear that meshes with the drive gear 31, and has a shaft portion 34a on the motor side that is inserted into the bearing hole 35a of the bearing plate 35, and a stepped through hole centered on the shaft, that is, connected to the motor side. An oval-shaped hole 34b, which is one size larger than the part 33a, is provided on the output side with a cross section that is pivotally supported on the outer periphery of the protruding part 37a toward the inside of the front case 36 of the auxiliary output shaft guide bush 37 fixed to the front case 36. A circular hole 34c is bored. However, even in this structure, the connecting portion 32a and the hole 31b and the connecting portion 3 are provided for the purpose of buffering.
3a and the hole 34b, the slot-like grooves 32b and 33b at the tips of the main output shaft 32 and the sub-output shaft 33, which engage with the tongue-like protrusion at the tip of the device side rod, are mutually connected. It is difficult to obtain the precision of the angle formed by the gear, and the shape is complicated. In particular, the driving gear 31 has a drawback that the processing method is limited to sintering or the like, so that the cost is high. In order to reduce the thickness, the bearing plate 35 and the protrusion 37a of the auxiliary output shaft guide bush 37 must be placed close to each other, but in order to obtain smooth movement of the driven gear 34, the dimensional accuracy and positional accuracy of each component must be maintained. Improvements are required and costs will further increase.

【問題点を解決する為の手段】[Means to solve problems]

本考案は、上記従来の欠点に鑑み成されたもの
で、中空のモータシヤフト先端に、主出力軸に貫
通されたピンと滑合するスリツトを設けることに
より、このスリツトを基準として、主出力軸およ
び副出力軸の取付け角度の精度を向上し、従動歯
車をフロントケースに固設した副出力軸用ガイド
ブツシユの外周に片持ちで軸支することでモータ
アクチユエータの薄型化を低コストで可能にした
ものである。 The present invention was developed in view of the above-mentioned drawbacks of the conventional motor shaft, and by providing a slit at the tip of the hollow motor shaft that slides with a pin passed through the main output shaft, the main output shaft and By improving the accuracy of the mounting angle of the sub-output shaft and supporting the driven gear in a cantilever manner on the outer circumference of the guide bush for the sub-output shaft fixed to the front case, it is possible to make the motor actuator thinner at low cost. This is what I did.

【実施例】【Example】

以下、実施例を示す第１〜３図を用いて、本考
案を説明する。第１図は分解構成図、第２図は断
面図、第３図は第２図のAA断面である。 モータアクチユエータ１は、ステツプモータで
あるモータ部１ａ、および、歯車箱部１ｂを備
え、主出力軸機構２は、主出力軸４、主出力軸用
ガイドブツシユ５、連結用のピン６、駆動歯車
７、および、中空モータシヤフト８からなり、副
出力軸機構３は、副出力軸９、副出力軸用ガイド
ブツシユ１０、連結用のピン６′、従動歯車１１
からなる。 主出力軸４は中空モータシヤフト８の内径より
若干細く、モータ側端部に軸直角に貫通する孔４
ａを穿設され、孔４ａには両端を主出力軸４の両
側に略同一長さ突出するようにピン６が圧入さ
れ、出力側端部には孔４ａと直交するスリワリ状
の溝４ｂが設けられている。ピン６の長さは中空
モータシヤフト８の外径より若干大きい。主出力
軸用ガイドブツシユ５は、フロントケース１２に
固設され、主出力軸４と遊合する。モータ部１ａ
に組込まれた中空モータシヤフト８の先端にはピ
ン６の径よりわずかに大きい巾で、ピン６が充分
沈み込む深さのスリツト８ａが中空モータシヤフ
ト８の円周を２分する位置に２ケ所設けられてい
る。駆動歯車７には、軸を中心とする段付きの貫
通孔、すなわち、モータ部１ａ側には中空モータ
シヤフト８の外径に嵌着する円形の穴７ａとピン
６がスリツト８ａ内を横方向に動いたときの２ケ
所のニゲ溝７ｃとで構成される穴が、フロントケ
ース１２側には中空モータシヤフト８の内径と略
等しい円形の孔７ｂが穿設されている。 副出力軸９は、モータ側端部に軸直角に貫通す
る孔９ａを穿設され、孔９ａには両端を副出力軸
９の両側に略同一長さ突出してピン６′が圧入さ
れ、出力側端部には孔９ａと直交するスリワリ状
の溝９ｂが設けられている。副出力軸用ガイドブ
ツシユ１０は、フロントケース１２に固設され、
副出力軸９と遊合する。従動歯車１１は軸を中心
とする段付きの貫通孔、すなわち、モータ部１ａ
側には副出力軸９の径より若干大きい径の円形の
孔１１ａと、孔１１ａの円周を２分する位置にピ
ン６′の径よりわずかに大きい巾でピン６′が副出
力軸９から突出している長さより若干深いスリツ
ト１１ｂとで構成される孔が、フロントケース１
２側には副出力軸用ガイドブツシユ１０のモータ
部１ａ側への突出部１０ａの外周に従動歯車１１
を軸支する円形の穴１１ｃが穿設されている。 組立にあたつては、ピン６を圧入した主出力軸
４を、予め、組立を完了したモータ部１ａに組み
込まれた中空モータシヤフト８のスリツト８ａに
嵌め込み、駆動歯車７をかぶせて中空モータシヤ
フト８に駆動歯車７の孔の段部が突き当たるまで
圧入し、従動歯車１１を駆動歯車７と噛み合せて
所定の位置に置き、ピン６′を圧入した副出力軸
９を従動歯車１１に嵌め込み、主出力軸用ガイド
ブツシユ５および副出力軸用ガイドブツシユ１０
を固設したフロントケース１２をかぶせて固定す
る。 なお、従動歯車１１のスラスト方向の受圧手段
は、駆動歯車７のモータ部１ａ側にフランジを張
り出して従動歯車１１を受ける等種々あるがここ
では省略する。 中空モータシヤフト８が回転すると、スリツト
８ａに係合したピン６により主出力軸４、およ
び、主出力軸４と駆動歯車７、従動歯車１１、ピ
ン６′を介して連動する副出力軸９が、夫々反対
方向に回転する。 主出力軸４に圧入したピン６がスリツト８ａ内
を滑動し、ピン６が中空モータシヤフト８の外周
より外に突出てもニゲ溝７ｃ内に収まり、また、
ピン６のスリツト８ａ内の滑動とピン６を軸とす
る傾動とで、全方向に傾動でき、主出力軸４によ
つて駆動される機器側の軸に振動、芯ブレ等があ
つても、緩衝できる。 同様に、副出力軸９においても、副出力軸９に
圧入されたピン６′のスリツト１１ｂ内の滑動と、
ピン６′を軸とする傾動とで、全方向に傾動でき、
副出力軸９によつて駆動される機器側の軸に振
動、芯ブレ等があつても、緩衝できる。 また、ピン６，６′は、夫々スリツト８ａ，１
１ｂと滑合となつているので、回転方向には殆ど
遊びがなく、中空モータシヤフト８の回転を精度
よく各種機器側に伝達できる。 この実施例では、副出力軸が１個であるが、同
様の副出力軸機構を主出力軸機構の周囲に配設す
ることにより、２個以上の副出力軸機構を、設け
ることが可能である。また、主出力軸と副出力軸
の回転方向を反対にしたが、輪列を変えることで
同方向とすることができる。 中空モータシヤフトと主出力軸との連結構造
は、単一の出力軸のモータアクチユエータにおい
ても適用することができ、加工および組立が容易
となるばかりでなく、モータの回転を精度よく各
種機器側に伝達できるという効果を有する。 The present invention will be described below with reference to FIGS. 1 to 3 showing examples. FIG. 1 is an exploded configuration diagram, FIG. 2 is a sectional view, and FIG. 3 is a cross section along AA of FIG. 2. The motor actuator 1 includes a motor section 1a, which is a step motor, and a gear box section 1b, and the main output shaft mechanism 2 includes a main output shaft 4, a guide bush 5 for the main output shaft, a connecting pin 6, and a drive shaft. Consisting of a gear 7 and a hollow motor shaft 8, the sub-output shaft mechanism 3 includes a sub-output shaft 9, a guide bush 10 for the sub-output shaft, a connecting pin 6', and a driven gear 11.
Consisting of The main output shaft 4 is slightly thinner than the inner diameter of the hollow motor shaft 8, and has a hole 4 passing through the motor side end at right angles to the shaft.
A pin 6 is press-fitted into the hole 4a so that both ends protrude to both sides of the main output shaft 4 by approximately the same length, and a slit-shaped groove 4b perpendicular to the hole 4a is formed at the output side end. It is provided. The length of the pin 6 is slightly larger than the outer diameter of the hollow motor shaft 8. The main output shaft guide bush 5 is fixed to the front case 12 and loosely engages with the main output shaft 4. Motor part 1a
At the tip of the hollow motor shaft 8 incorporated in the hollow motor shaft 8, two slits 8a having a width slightly larger than the diameter of the pin 6 and deep enough for the pin 6 to sink are located at two locations dividing the circumference of the hollow motor shaft 8 into two. It is provided. The drive gear 7 has a stepped through hole centered around the shaft, that is, a circular hole 7a that fits on the outer diameter of the hollow motor shaft 8 on the motor part 1a side, and a pin 6 that extends laterally inside the slit 8a. A circular hole 7b having a diameter substantially equal to the inner diameter of the hollow motor shaft 8 is bored on the front case 12 side, which is formed by two grooves 7c when the motor is moved. The auxiliary output shaft 9 has a hole 9a penetrating at right angles to the axis at the end on the motor side, and a pin 6' is press-fitted into the hole 9a with both ends protruding by approximately the same length on both sides of the auxiliary output shaft 9. A slit-shaped groove 9b is provided at the side end portion and is perpendicular to the hole 9a. The auxiliary output shaft guide bush 10 is fixed to the front case 12,
It plays with the sub output shaft 9. The driven gear 11 has a stepped through hole centered around the shaft, that is, the motor portion 1a.
A circular hole 11a with a diameter slightly larger than the diameter of the sub-output shaft 9 is provided on the side, and a pin 6' with a width slightly larger than the diameter of the pin 6' is inserted into the sub-output shaft 9 at a position that bisects the circumference of the hole 11a. A hole consisting of a slit 11b that is slightly deeper than the length protruding from the front case 1
On the second side, there is a driven gear 11 on the outer periphery of the protrusion 10a of the sub-output shaft guide bush 10 toward the motor section 1a.
A circular hole 11c is bored for pivotally supporting the. During assembly, the main output shaft 4 with the pin 6 press-fitted therein is fitted in advance into the slit 8a of the hollow motor shaft 8 incorporated into the assembled motor part 1a, and the drive gear 7 is placed over the hollow motor shaft. 8 until the stepped part of the hole of the drive gear 7 butts, the driven gear 11 is meshed with the drive gear 7 and placed in a predetermined position, the sub output shaft 9 with the pin 6' press-fitted is fitted into the driven gear 11, and the main Output shaft guide bush 5 and auxiliary output shaft guide bush 10
Cover and fix with the front case 12 which is fixedly attached. There are various means for receiving pressure in the thrust direction of the driven gear 11, such as a flange projecting out from the motor portion 1a side of the driving gear 7 to receive the driven gear 11, but these are omitted here. When the hollow motor shaft 8 rotates, the pin 6 engaged with the slit 8a causes the main output shaft 4 and the auxiliary output shaft 9, which is interlocked with the main output shaft 4 via the driving gear 7, the driven gear 11, and the pin 6', to rotate. , rotate in opposite directions. The pin 6 press-fitted into the main output shaft 4 slides within the slit 8a, and even if the pin 6 protrudes beyond the outer periphery of the hollow motor shaft 8, it remains within the nip groove 7c.
The sliding motion of the pin 6 in the slit 8a and the tilting movement around the pin 6 allow for tilting in all directions, and even if the shaft on the equipment side driven by the main output shaft 4 experiences vibrations, core wobble, etc. Can be buffered. Similarly, in the sub-output shaft 9, the pin 6' press-fitted into the sub-output shaft 9 slides in the slit 11b.
It can be tilted in all directions by tilting around pin 6'.
Even if the shaft on the equipment side driven by the sub-output shaft 9 experiences vibrations, core vibrations, etc., it can be buffered. Further, the pins 6, 6' have slits 8a, 1, respectively.
1b, there is almost no play in the rotational direction, and the rotation of the hollow motor shaft 8 can be accurately transmitted to various devices. In this embodiment, there is one sub-output shaft, but by arranging similar sub-output shaft mechanisms around the main output shaft mechanism, it is possible to provide two or more sub-output shaft mechanisms. be. Furthermore, although the rotation directions of the main output shaft and the sub-output shaft are reversed, they can be made to rotate in the same direction by changing the wheel train. The connection structure between the hollow motor shaft and the main output shaft can be applied to motor actuators with a single output shaft, which not only facilitates processing and assembly, but also allows the rotation of the motor to be accurately controlled in various devices. It has the effect of being able to transmit information to the side.

【考案の効果】[Effect of the idea]

以上述べた本考案によるモータアクチユエータ
においては、主出力軸に貫通されたピンを、中空
モータシヤフト先端部の２ケ所のスリツトに滑合
させ、駆動歯車で中空モータシヤフトの先端を覆
つて、中空モータシヤフトと主出力軸とを連結
し、同様に副出力軸に貫通されたピンと従動歯車
の２ケ所のスリツトとを滑合させて主出力軸およ
び副出力軸の回転方向の遊びを殆どなくしている
ので、ピンの滑動とピンを軸とする傾動とで各種
機器側の軸の振動、芯ブレ等を緩衝するばかりで
なく、モータの回転を精度よく各種機器側に伝達
できる。また、主出力軸および副出力軸相互の角
度を精度よく組立てることができ、主副出力軸
夫々が駆動する機器の動作を精度よく同期させる
ことができる。 また、従動歯車をフロントケースに固設した副
出力軸用ガイドブツシユの外径に片持ちで軸支し
ているので、特に各部品の寸法精度および位置精
度を向上させずに低コストで薄型化が可能であ
る。 また、各構成部品の構造が単純なので、加工が
容易であり、主副出力軸夫々に予めピンを取付
け、各部品を順次重ねて組立てられるので、組立
が容易なため、低コストで製作できる。 In the motor actuator according to the present invention described above, the pin passed through the main output shaft is slid into two slits at the tip of the hollow motor shaft, and the drive gear covers the tip of the hollow motor shaft. The hollow motor shaft and the main output shaft are connected, and the pin passed through the sub-output shaft and the two slits in the driven gear are slid together to almost eliminate play in the rotational direction of the main output shaft and the sub-output shaft. Therefore, the sliding motion of the pin and the tilting movement around the pin not only buffer vibrations and core vibrations of the shafts of various devices, but also accurately transmit the rotation of the motor to the various devices. Further, the mutual angles of the main output shaft and the sub output shaft can be assembled with high precision, and the operations of the devices driven by the main and sub output shafts can be synchronized with high precision. In addition, since the driven gear is cantilevered on the outer diameter of the auxiliary output shaft guide bushing fixed to the front case, it can be made thinner at low cost without particularly improving the dimensional accuracy and positional accuracy of each component. It is possible. Furthermore, since the structure of each component is simple, it is easy to process. Pins are attached to each of the main and sub-output shafts in advance, and the parts can be stacked one on top of the other in order, so assembly is easy and it can be manufactured at low cost.

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

第１〜３図は本考案の実施例で、第１図は分解
構成図、第２図は断面図、第３図は第２図のAA
断面図、第４図は従来例の部分断面図、第５〜６
図は別の従来例で、第５図は部分断面図、第６図
は要部の分解構成図である。 １はモータアクチユエータ、１ａはモータ部、
２は主出力軸機構、３は副出力軸機構、４は主出
力軸、６、６′はピン、７は駆動歯車、８は中空
モータシヤフト、８ａはスリツト、９は副出力
軸、１０は副出力軸用ガイドブツシユ、１１は従
動歯車、１１ｂはスリツト、１２はフロントケー
スである。 Figures 1 to 3 show examples of the present invention; Figure 1 is an exploded configuration diagram, Figure 2 is a sectional view, and Figure 3 is the AA of Figure 2.
Cross-sectional view, Figure 4 is a partial cross-sectional view of the conventional example, Figures 5-6
The figures show another conventional example, with FIG. 5 being a partial sectional view and FIG. 6 being an exploded configuration diagram of the main parts. 1 is a motor actuator, 1a is a motor part,
2 is the main output shaft mechanism, 3 is the sub output shaft mechanism, 4 is the main output shaft, 6, 6' are pins, 7 is the drive gear, 8 is the hollow motor shaft, 8a is the slit, 9 is the sub output shaft, 10 is the 11 is a driven gear, 11b is a slit, and 12 is a front case.

Claims (1)

【実用新案登録請求の範囲】 モータの中空シヤフトに連結された主出力軸お
よび、歯車機構で主出力軸と連動する副出力軸を
備え、各種機器を駆動するモータアクチユエータ
において、 主出力軸のモータ側端部に軸直角に貫通され両
端が該主出力軸の両側に略同一長さ突出したピン
を、中空モータシヤフトの先端部に設けた２ケ所
のスリツト内に滑合させ、該主出力軸を挿通し該
中空モータシヤフトの外径に嵌着する駆動歯車で
該中空モータシヤフトの先端を覆つた主出力軸機
構と、 副出力軸のモータ側端部に軸直角に貫通され両
端が該副出力軸の両側に略同一長さ突出したピン
を、フロントケースに固設された該副出力軸用ガ
イドブツシユの外周に軸支され該駆動歯車と噛合
い該副出力軸を挿通する従動歯車に設けた２ケ所
のスリツト内に滑合させた副出力軸機構の１個以
上とを備えたモータアクチユエータ。[Scope of Claim for Utility Model Registration] In a motor actuator that drives various devices, the main output shaft is equipped with a main output shaft connected to a hollow shaft of the motor and a sub-output shaft interlocked with the main output shaft through a gear mechanism. A pin that passes through the motor side end at right angles to the axis and has both ends projecting approximately the same length on both sides of the main output shaft is slid into two slits provided at the tip of the hollow motor shaft. A main output shaft mechanism that covers the tip of the hollow motor shaft with a drive gear that inserts the output shaft and fits on the outer diameter of the hollow motor shaft, and a sub output shaft that passes through the motor side end of the sub output shaft at right angles to the axis and has both ends. A driven gear having pins projecting approximately the same length on both sides of the auxiliary output shaft is pivotally supported on the outer periphery of a guide bush for the auxiliary output shaft fixed to the front case, meshing with the drive gear and passing through the auxiliary output shaft. A motor actuator comprising one or more auxiliary output shaft mechanisms slidably fitted in two slits provided in the motor actuator.