Title:
PIEZOELECTRIC DRIVE DEVICE AND ROBOT
Document Type and Number:
Japanese Patent JP2022117611
Kind Code:
A
Abstract:
To provide a piezoelectric drive device which can be downsized in an opposite direction of a drive force transmission part, and a robot.SOLUTION: A piezoelectric drive device 1 comprises: a vibrator 2 including a vibration part 21 including piezoelectric elements 2a-2f and a drive force transmission part 28 disposed in the vibration part 21 and transmitting a drive force to a driven part (rotor 100); and a spring part 4 including compression springs 43 and 44 energizing the drive force transmission part 28 toward the rotor 100. The vibrator 2 and the spring part 4 are overlapped in a planar view in a direction orthogonal to a vibration plane 20 of the vibration part 21.SELECTED DRAWING: Figure 2
Inventors:
KISHIDA SANSEI
TAKAHASHI TOMOAKI
TAKAHASHI TOMOAKI
Application Number:
JP2021014202A
Publication Date:
August 12, 2022
Filing Date:
February 01, 2021
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
H02N2/12; B25J19/00
Attorney, Agent or Firm:
Satoshi Nakai
Hiroki Matsuoka
Masayuki Imamura
Hiroki Matsuoka
Masayuki Imamura