Title:
LATCH TYPE PIEZOELECTRIC ACTUATOR
Document Type and Number:
Japanese Patent JPS61168275
Kind Code:
A
Abstract:
PURPOSE:To eliminate a magnetic interference with a simple structure, small- size, low power and low heating by applying a drive force to an inverting spring mechanism by a piezoelectric element. CONSTITUTION:A movable contact 3 is accelerated as a flying member by the forces generated at the first or second piezoelectric elements 5, 7 at voltage applying time, flown and a movable member is inverted. Thus, the stroke of the contact 3 of the magnitude of the times of several tens to several hundreds of the displacements of the elements 5, 7 can be obtained, and large contacting force is obtained. Further, since the piezoelectric element known as having high energy conversion efficiency is used as the drive source of the contact 3 as the member, magnetic interference is eliminated at low heating.
Inventors:
UCHIKAWA TADAYASU
OOTA TAKASHI
OOTA TAKASHI
Application Number:
JP861385A
Publication Date:
July 29, 1986
Filing Date:
January 21, 1985
Export Citation:
Assignee:
NEC CORP
International Classes:
H01L41/09; H01H57/00; H02N2/00; (IPC1-7): H01L41/08; H02N2/00
Domestic Patent References:
| JP56130247B |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)