US 11,742,724 B2
Electric actuator
Kenji Kohshoh, Nobeoka (JP); and Shinobu Kamimura, Nobeoka (JP)
Assigned to ASAHI YUKIZAI CORPORATION, Nobeoka (JP)
Appl. No. 17/57,854
Filed by ASAHI YUKIZAI CORPORATION, Nobeoka (JP)
PCT Filed Apr. 24, 2019, PCT No. PCT/JP2019/017494
§ 371(c)(1), (2) Date Nov. 23, 2020,
PCT Pub. No. WO2019/225277, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 2018-100695 (JP), filed on May 25, 2018.
Prior Publication US 2021/0301939 A1, Sep. 30, 2021
Int. Cl. H02K 11/21 (2016.01); H02K 5/04 (2006.01); H02K 7/14 (2006.01); H02K 11/23 (2016.01); F16K 31/05 (2006.01); G01V 11/00 (2006.01)
CPC H02K 11/21 (2016.01) [H02K 5/04 (2013.01); H02K 7/14 (2013.01); H02K 11/23 (2016.01); F16K 31/05 (2013.01); G01V 11/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electric actuator including a housing and an electric driving unit driving an output shaft supported by the housing, said electric actuator comprising:
a selector member having a working end portion protruding inside the housing and an operating end portion protruding outside the housing, said selector member being rotatable about a rotation axis and movable in a direction of the rotation axis by operation of the operating end portion;
a position holding member provided in a portion of the selector member to be arranged inside the housing so as to protrude in a direction intersecting the rotation axis;
a detection object provided at the working end portion of the selector member so as to extend in the direction intersecting the rotation axis;
a detector provided inside the housing to detect the detection object;
a first engagement groove for engaging with the position holding member, provided on a cooperation surface inside the housing; and
a biasing member biasing the selector member in the direction of the rotation axis to make the position holding member approach the cooperation surface,
wherein the first engagement groove is formed so that the detection object is positioned in one of a detectable area where the detection object can be detected by the detector and an undetectable area where the detection object cannot be detected by the detector when the position holding member is engaged with the first engagement groove, and the detector is configured to switch between supply and cutoff of power to the electric driving unit in accordance with whether the detection object is positioned in the detectable area or in the undetectable area.