US 12,231,863 B2
Sound output device
Takumi Endoh, Tokyo (JP); Nobukazu Suzuki, Tokyo (JP); and Takayoshi Seki, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 18/005,100
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Jun. 14, 2021, PCT No. PCT/JP2021/022574
§ 371(c)(1), (2) Date Jan. 11, 2023,
PCT Pub. No. WO2022/019004, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 2020-123986 (JP), filed on Jul. 20, 2020.
Prior Publication US 2023/0269541 A1, Aug. 24, 2023
Int. Cl. H04R 9/06 (2006.01); H04R 9/04 (2006.01)
CPC H04R 9/06 (2013.01) [H04R 9/045 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A sound output device, comprising:
an actuator configured to output a driving force based on a drive signal;
a vibrating body that includes a plurality of receiving parts, wherein the actuator is further configured to vibrate the vibrating body based on the driving force;
a transmission plate that includes a plurality of pressing parts, wherein the plurality of pressing parts is configured to press the plurality of receiving parts, respectively;
a coil spring configured to apply a biasing force to the transmission plate, wherein the transmission plate is configured to press the plurality of pressing parts against the plurality of receiving parts, respectively; and
a base body configured to receive a first face of the actuator, wherein
the coil spring is further configured to press the vibrating body against a second face of the actuator based on the biasing force.