| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electromagnetic operation type opening/closing device capable of shortening an oil leak or oil damper adjustment time.SOLUTION: The electromagnetic operation type opening/closing device comprises: a movable electrode 4 forming a switch; a movable element 8d connected to the movable electrode and driven by an electromagnetic force for opening or closing the movable electrode; and an electromagnetic force damper 9 connected to the movable element and capable of absorbing kinetic energy of the movable element. The electromagnetic force damper uses a braking force reverse to a moving direction caused by an eddy current generated in a magnetic substance 9a when the magnetic substance relatively moves within a magnetic path.</p> |
