Patent ID: 8755557

Claim:
A loudspeaker diaphragm, comprising: a diaphragm portion; and an edge portion, which is molded integrally with the diaphragm portion and made of a material different from a material for the diaphragm portion, wherein: the diaphragm portion comprises, at an outer peripheral end thereof, an outer wall portion provided upright in a direction substantially parallel to a vibrating direction of the diaphragm portion; an inner peripheral surface of the edge portion is bonded onto an outer peripheral surface of the outer wall portion; and the outer wall portion has a height larger than a thickness of the diaphragm portion, wherein: the outer wall portion comprises a protruding portion protruding in a radial direction; and the protruding portion comprises a plurality of protruding portions provided at substantially equal intervals in a circumferential direction of the outer wall portion.