US 12,294,271 B2
Vibration actuator and vibration presenting apparatus
Yuki Takahashi, Tokyo (JP); and Tomoya Ishitani, Tokyo (JP)
Assigned to MINEBEA MITSUMI Inc., Nagano (JP)
Filed by Yuki Takahashi, Tokyo (JP); and Tomoya Ishitani, Tokyo (JP)
Filed on Nov. 22, 2023, as Appl. No. 18/517,023.
Application 18/517,023 is a continuation of application No. 18/053,392, filed on Nov. 8, 2022, granted, now 11,863,039.
Application 18/053,392 is a continuation of application No. 16/669,567, filed on Oct. 31, 2019, granted, now 11,522,429, issued on Dec. 6, 2022.
Claims priority of application No. 2018-206111 (JP), filed on Oct. 31, 2018.
Prior Publication US 2024/0097544 A1, Mar. 21, 2024
Int. Cl. H02K 33/06 (2006.01); H02K 33/16 (2006.01); B06B 1/04 (2006.01); H02K 33/00 (2006.01); H02K 33/02 (2006.01); H02K 33/04 (2006.01)
CPC H02K 33/06 (2013.01) [H02K 33/16 (2013.01); B06B 1/045 (2013.01); H02K 33/00 (2013.01); H02K 33/02 (2013.01); H02K 33/04 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A vibration actuator, comprising:
a metal plate including a through hole at a center portion;
a plate-shaped electromagnet obtained by winding a coil at a center portion of a plate-shaped core; and
a support part configured to elastically support the plate-shaped electromagnet with respect to the metal plate with the coil disposed to face a through hole, such that the plate-shaped electromagnet is displaced in the opposing direction of the coil and the through hole, wherein
when the plate-shaped electromagnet suctions the metal plate in the opposing direction with a magnetic force generated by energization to the coil, a vibration of the vibration actuator is generated.