Patent ID: 9680399
Date: 2017-06-13
CPC Classifications: G02B,H01L,H02N

Claim:
1. A driving apparatus comprising: a vibrator, the vibrator having a piezoelectric element; a contact member, the contact member contacting the vibrator; a holding part, the holding part holding the vibrator, which is applied, by an elastic member, a pressing force to press the vibrator against the contact member, wherein the contact member and the holding part are able to be relatively moved by an excitation of the piezoelectric element; a first transmission member, the first transmission member being movable in association with the relative movement of the contact member and the holding part; a first guide part, the first guide part being movable with the vibrator and the first transmission member relative to the contact member; a rolling part being rollably held between the first guide part and a second guide part, the second guide part being movable with the contact member relative to the vibrator; and a body to be driven, the body to be driven having a second transmission member that is pivotably supported and is movable with the first transmission member in a direction of the relative movement, wherein, the second transmission member comprises a bias part that abuts on the first transmission member and applies a biasing force of biasing the holding part to the rolling part to the first transmission member, and the rolling part is held by a resultant force of the pressing force or a reaction force of the pressing force, and the biasing force.