To provide a novel electric actuator with a double nut which is more hardly loosened.SOLUTION: The electric actuator includes, for example, an electric driving device, a thread screw member having a male screw and moving linearly in response to actuation of the driving device, a first female screw member including a first surface that receives an external force in an axial direction of a central axis of the male screw, a second face opposite to the first face, and a first female screw engaged with the male screw, and an inner circumferential surface configuring a clearance with the male screw spaced from the male screw in the radial direction of the central axis between the first female screw and the second surface, and a second female screw member including a third surface for pressing the second surface and a second female screw engaged with the male screw.SELECTED DRAWING: Figure 3

    【課題】例えば、より緩み難いダブルナットを有した新規な電動アクチュエータを得る。【解決手段】電動アクチュエータは、例えば、電動式の作動装置と、雄ねじを有し作動装置の作動に応じて直動する雄ねじ部材と、雄ねじの中心軸の軸方向に外力を受ける第一面と、当該第一面とは反対側の第二面と、雄ねじと噛み合う第一雌ねじと、第一雌ねじと第二面との間において雄ねじから中心軸の径方向に離れ当該雄ねじとの間にクリアランスを構成する内周面と、を有した第一雌ねじ部材と、第二面を押圧する第三面と、雄ねじと噛み合う第二雌ねじと、を有した第二雌ねじ部材と、を備えている。【選択図】図3


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    Title :

    ELECTRIC ACTUATOR


    Additional title:

    電動アクチュエータ


    Contributors:

    Publication date :

    2019-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile



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