To constitute an electric actuator which is suppressed in the enlargement of a size and a rise of a cost without impairing a function for making an output member linearly appear and retract by a drive force of an electric motor.SOLUTION: An electric actuator comprises: a drive gear 2 which rotates by a drive force of an electric motor 1, and has a helical drive tooth part 2t; a driven gear 3 which rotates with an output axial core Y as a center, and has a helical driven tooth part 3t which is geared with the drive tooth part 2t; an output rod 4 arranged on the same axial core as that of the output axial core Y; and a conversion mechanism T for converting a rotation motion of the driven gear 3 to a linear motion, and transmitting it to the output rod 4. The conversion mechanism T comprises a screw part having a nut part 16 which rotates integrally with the driven gear 3, and a male screw part 4s which is formed at the output rod 4 so as to be geared with a female screw part 16s of the nut part 16, and thus, the conversion mechanism is constituted into a slide screw type.SELECTED DRAWING: Figure 1

    【課題】電動モータの駆動力により出力部材を直線的に出退させる機能を損なうことなく、大型化とコスト上昇とを抑制した電動アクチュエータを構成する。【解決手段】電動モータ1の駆動力で駆動軸芯Xを中心に回転しヘリカル型の駆動歯部2tを有するドライブギヤ2と、出力軸芯Yを中心に回転し駆動歯部2tに咬合するヘリカル型の従動歯部3tを有するドリブンギヤ3と、出力軸芯Yと同軸芯上に配置された出力ロッド4と、ドリブンギヤ3の回転運動を直線運動に変換して出力ロッド4に伝える変換機構Tとを備え、変換機構Tが、ドリブンギヤ3と一体的に回転するナット部16、及び、ナット部16の雌ネジ部16sに咬み合うように出力ロッド4に形成された雄ネジ部4sを有するネジ部を備えてすべりネジ型に構成した。【選択図】図1


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    Titel :

    ELECTRIC ACTUATOR


    Weitere Titelangaben:

    電動アクチュエータ


    Beteiligte:
    SHIGEMATSU TAKUYA (Autor:in) / KOJIMA FUMIO (Autor:in) / MAKI KAZUHIRO (Autor:in) / NAGATA HIDEMICHI (Autor:in) / OKABE YUKI (Autor:in)

    Erscheinungsdatum :

    2018-12-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F16H Getriebe , GEARING / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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