| 摘要 |
An electromagnetic actuator operable with a source of electric current has two overlapping, oppositely movable armatures that are mounted on resiliently flexible cantilever spring members and coupled together by resiliently flexible spring elements, to provide coordinated cooperative movements of the armatures when energized. The armatures have conductive coils thereon that are connectable to the current source through the spring members and spring elements. A permanent magnet and a pair of flux return plates are disposed near the armatures to provide a suitable magnetic path through the coils. Current flowing through the coils in the magnetic path generates oppositely directed forces on the two armatures. Structure is provided for constraining the coupling spring elements to move in only one direction when such forces are generated, thereby facilitating coordination of desired armature movements in directions substantially opposite to each other and perpendicular to the one direction.
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