| 摘要 |
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. |
