Patent ID: 8311263

Claim:
A spider arrangement for an electromagnetic vibrator which comprises an induction coil supported within a supporting frame to electromagnetically communicate with a magnetic element in an axially movable manner so as to generate a vibration force at a diaphragm, wherein said spider arrangement comprises: an outer rim adapted for mounting to said supporting frame; an inner rim coaxially aligning with said outer rim for mounting to said induction coil; a plurality of suspension arms radially and evenly extended from said inner rim to said outer rim to enable said inner rim to be moved axially in responsive to an electromagnetic force between said induction coil and said magnetic element, wherein said outer rim, said inner rim, and said suspension arms are molded that said suspension arms are integrally extended between said inner and outer rims to form a one-piece spider structure, wherein each of said suspension arms provides a restoring force towards said inner rim for allowing said induction coil to alignedly move in a pistonic motion with respect to said magnetic element in a stable manner, wherein said suspension arms are provided in an even number such that said suspension arms provide evenly restoring forces towards said inner rim; and an integral wiring arrangement for operatively coupling with said induction coil, wherein said integral wiring arrangement comprises two or more induction wires integrally embedded with two or more of said suspension arms respectively, wherein each of said induction wires has a first terminal extended to said inner rim for electrically coupling with said induction coil and a second terminal extended towards said outer rim for externally connection of said induction coil.