| 摘要 |
A spider arrangement for an electromagnetic vibrator includes an outer rim adapted for mounting to a supporting frame of the electromagnetic vibrator, an inner rim coaxially aligning with the outer rim for mounting to an induction coil of the electromagnetic vibrator, and a plurality of suspension arms radially and evenly extended from the inner rim to the outer rim to enable the inner rim to be moved axially in responsive to an electromagnetic force between the induction coil and a magnetic element. Each of the suspension arms provides a restoring force towards the inner rim for allowing the induction coil to alignedly move in a pistonic motion with respect to the magnetic element in a stable manner. |
