Title:
PIEZOELECTRIC ACTUATOR AND ELECTRONIC TIMEPIECE
Document Type and Number:
WIPO Patent Application WO/2016/152224
Kind Code:
A1
Abstract:
Provided are a piezoelectric actuator with good drive efficiency and an electronic timepiece such that factors that would cause the peak resonance frequency of the piezoelectric actuator to fluctuate are reduced, thereby facilitating drive frequency setting and device installation. The piezoelectric actuator is provided with: two piezoelectric components 1a, 1b that are arranged in a V-shape so as to form a predetermined angle therebetween and deform when a voltage is applied thereto; a base 2 that is disposed on the side where the two piezoelectric components 1a, 1b intersect with each other and secures the intersection-side ends of the two piezoelectric components 1a, 1b; a thin plate-like elastic member 4 that bridges the expanding sides of the two piezoelectric components 1a, 1b and is fixed to the expanding side ends of the two piezoelectric components 1a, 1b; and a transmission part 43 that is disposed on the center part of the elastic member 4 in the direction in which the elastic member 4 bridges the two piezoelectric components 1a, 1b.
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Inventors:
KUROKAWA TOMOYASU (JP)
Application Number:
PCT/JP2016/051746
Publication Date:
September 29, 2016
Filing Date:
January 21, 2016
Export Citation:
Assignee:
CASIO COMPUTER CO LTD (JP)
International Classes:
H02N2/00
Foreign References:
| JP2001141633A | 2001-05-25 | |||
| JP2001161083A | 2001-06-12 | |||
| JP2013070447A | 2013-04-18 | |||
| JPH05157858A | 1993-06-25 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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