| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reciprocating vibrator which is capable of preventing the comming-off of a shaft and the like even if there is no outside cover. Ž<P>SOLUTION: The vibration linear actuator is provided with an annular weight 20 having permanent magnets 30, 31 in the inner peripheral side, a first leaf spring 40 where the outer peripheral side suspension parts 41a, 42a are fixed at a first end face 20a of the weight 20, a second leaf spring 50 where the outer peripheral side suspension parts 51a, 52a are fixed at a second end face 20b of the weight 20 and a stator which supports the first and second leaf springs 40, 50 respectively, and has an excitation coil 60 to generate the reciprocal oscillation magnetic field against the weight 20 in the inner peripheral side of the permanent magnets 30, 31. The stator has a metallic end plate 70 where the second leaf spring 50 is fixed by the annular plate part 53 and a spindle 80 of a magnetic material which penetrates through the excitation coil 60 and of which both end parts penetrate through the central plate part 43 of the first leaf spring 40 and the central aperture h of the second leaf spring 50 to come in supporting contact with the metallic end plate 70. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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