Patent ID: 8705790

Claim:
A speaker comprising: a speaker diaphragm including a body having an outer circumference portion and vibrating to generate a sound, an edge provided on the outer circumference portion of the body, the edge being made of material different from material of the body, and molded together with the body by a double molding, a projection provided on an upper surface of the edge, the projection being made of material identical to the material of the edge, and a gasket provided on a lower surface of the edge, the gasket being made of material identical to the material of the body: a voice coil fixed onto a lower surface of the body of the speaker diaphragm; a magnetic circuit having a magnetic gap into which the voice coil is inserted; a protector contacting the projection of the speaker diaphragm; and a frame fixes the diaphragm between the protector and the frame such that the projection is compressed by the gasket and the protector.