| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, if conventional solenoid actuators are applied to a small actuator group for inducing the displacement of two positions, the two positions cannot be stably self-retained and the respective actuators are difficult to efficiently be arranged in a matrix shape. SOLUTION: A direct acting actuator group comprises a first electromagnet, a second electromagnet arranged separately therefrom, and a permanent magnet arranged in a gap. On the permanent magnet, the cylindrical actuators which have movable parts connected in a row arrangement with driving arms folded in parallel with the translational moving direction of the permanent magnet and in which the driving arms are arranged so as to protrude from the gaps between the respective actuators are arranged in a matrix shape. COPYRIGHT: (C)2004,JPO
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