Invention Grant
US09401667B2 Vibration-type driving device 有权
振动式驱动装置

Vibration-type driving device
Abstract:
A vibration-type driving device includes a vibrator including an electro-mechanical transducer and an elastic portion supported by a shaft, and a rotor the position of which relative to the vibrator changes. The rotor includes a first rotor having a threaded portion engaging with a first threaded portion formed on the elastic portion, and a second rotor having a threaded portion engaging with a second threaded portion formed on the shaft. The first rotor and the second rotor are configured to be driven integrally with each other, with a spring member between the first rotor and the second rotor.
Public/Granted literature
Information query
Patent Agency Ranking
0/0