Title:
VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/044958
Kind Code:
A1
Abstract:
Provided is a vibration device that is small and yet has a large driving force. A vibration device 1 includes: a support member 5 having a first side portion 5a and a second side portion 5b facing each other; a first displacement plate 6 supported by the first side portion 5a and extending toward the second side portion 5b so as to have a free end; a second displacement plate 7 supported by the second side portion 5b and extending toward the first side portion 5a so as to have a free end; first and second piezoelectric vibration elements provided on the first displacement plate 6 and the second displacement plate 7 respectively; and a mass adding member 9 connected to the respective free end side portions of the first displacement plate 6 and the second displacement plate 7.
Inventors:
KAGAYAMA KENJI (JP)
Application Number:
PCT/JP2018/032081
Publication Date:
March 07, 2019
Filing Date:
August 30, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
B06B1/06
Foreign References:
| CN105975088A | 2016-09-28 | |||
| JP2001193786A | 2001-07-17 | |||
| JP2000233157A | 2000-08-29 |
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
Download PDF: