| 摘要 |
PROBLEM TO BE SOLVED: To obtain an actuator which provides a greater thrust, and more preferably, a more shocking thrust by a small-sized and a comparatively simple structure. SOLUTION: The actuator converts a rotary motion of a magnetization cylinder 3c into an advancing motion of a linear motion body 4 by magnetic connection of spiral magnets 21N, 21S provided on a rotary body (magnetization cylinder 3c) and spiral projecting strips 4a (4a1, 4a2) provided on the rod-like linear motion body 4 inserted into the cylinder of the magnetization cylinder 3c. By providing a travel regulating mechanism for regulating travel of the linear motion body 4 toward one side in the axial direction, and by making the magnets 21N, 21S and the projecting strips 4a (4a1, 4a2) to step out by the travel regulating mechanism, the linear motion body 4 is made to continuously or reciprocatingly operate. COPYRIGHT: (C)2007,JPO&INPIT
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