Patent ID: 8531085

Claim:
A vibration actuator comprising: a vibration portion which contacts a relative movement portion, and which produces necessary vibration for a relative movement of the relative movement portion; a first member which is provided so as to hold the relative movement portion between the first member and the vibration portion, and which moves relative to the vibration portion in response to movement of the relative movement portion with respect to the vibration portion; a second member which faces the first member via a rolling member, and which supports the first member so that the first member is movable relative to the vibration portion; and a pressing member which gives rise to a pressing force between the second member and the vibration portion so that the vibration portion and the relative movement portion are in contact with each other; and wherein the first member comprises a plastic substance and joining portion which joins to the relative movement portion in a direction of relative movement of the relative movement portion, and in a direction orthogonal to the direction of the pressing force, and the joining portion joins to the relative movement portion via a vibration absorption member in the direction of the pressing force.