Patent ID: 9641104
Date: 2017-05-02
CPC Classifications: H02N

Claim:
1. An actuator comprising: a vibrator including a vibration plate and a piezoelectric device that generates a vibration in the vibration plate; a holding member that holds the vibrator; a friction member configured to contact the vibrator with friction, so that the vibration by the vibrator causes a relative movement between the friction member and the vibrator, wherein the vibration plate includes a center portion including a surface on a first side on which the piezoelectric device is fixed and a contact portion to contact the friction member on a second side opposite to the first side, a fixing portion for fixing the vibration plate to the holding member, and a connection portion for connecting the center portion and the fixing portion, and wherein the fixing portion is offset from a first plane including the surface of the first side of the center portion and is located between the first plane and a second plane which includes the contact portion, wherein the second plane is parallel to the first plane.