SEATBACK ROTATING DEVICE

Provided is a seatback rotating device. The seatback rotating device includes an electric motor and an application mechanism. The electric motor generates a rotational force that is used to rotationally displace a seatback of a vehicle seat. The application mechanism enables application of the rotational force to the seatback. The application mechanism has a configuration that enables the seatback to be self-rotatable with gravity applied to the seatback in response to the rotational force being applied to the seatback.