Invention Grant
- Patent Title: Vibration-type driving device
- Patent Title (中): 振动式驱动装置
-
Application No.: US14193891Application Date: 2014-02-28
-
Publication No.: US09401667B2Publication Date: 2016-07-26
- Inventor: Akira Shimada
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA Inc. IP Division
- Priority: JP2013-041158 20130301
- Main IPC: H02N2/00
- IPC: H02N2/00 ; H01L41/09 ; H02N2/02 ; H02N2/10

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
- US20140246953A1 VIBRATION-TYPE DRIVING DEVICE Public/Granted day:2014-09-04
Information query