| 摘要 |
PROBLEM TO BE SOLVED: To obtain an oscillatory linear actuator that makes it possible to enhance assemblability and adjust the natural frequency of a magnetic block. SOLUTION: The oscillatory linear actuator 1 includes: an electromagnetic core block 3 having an electromagnet 2; a magnetic block 6 having a permanent magnet 4 and a back yoke 5; a natural frequency setting member 18 having a coupling portion 7 coupling the electromagnetic core block 3 and the magnetic block 6 with each other with a predetermined gap in-between and a coupling spring portion 8 for setting mainly the natural frequency of the magnetic block 6 relative to the electromagnetic core block 3. The linear actuator is detachably provided with an auxiliary spring 20 for coupling a driving element 14 and a coupling portion 15 with each other and adjusting the natural frequency of the magnetic block 6. COPYRIGHT: (C)2009,JPO&INPIT |
