Patent ID: 7550885
Filing Date: 2009-06-23
Classification: B06B

Abstract:
1. A reciprocal vibration generator provided with a case body supporting an elastic member from which a weight is suspended in a space, a permanent magnet attached to the weight, and a bottom lid carrying an excitation coil for making the weight vibrate in the up-down direction by magnetic attraction or magnetic repulsion of this permanent magnet and closing a bottom opening of the case body, wherein the bottom lid is an insert molded board comprised of first and second terminal boards, each having an end connection terminal part connecting an end of the excitation coil inside the case body, insulated and separated from each other by a molding plastic, the terminal boards having board connection patterns projecting downward from a bottom surface of the molding plastic, wherein said board connection pattern surfaces are outside surfaces of recesses formed in the terminal boards in the thickness direction.