Patent ID: 8139811

Claim:
A speaker comprising: a frame; a magnetic circuit attached to the frame; and a vibrating unit having a diaphragm, a voice coil to which voice currents are supplied, a drive cone for transmitting a vibration of the voice coil to the diaphragm, and first and second edge units, wherein the diaphragm is supported by the frame with the first edge unit, wherein the drive cone is supported by the frame with the second edge unit, and the outer edge of the diaphragm is connected to the first edge unit, an inner edge of the drive cone is connected to the voice coil and an outer edge unit of the drive cone is connected to the second edge, the diaphragm is connected to a part between the inner edge and the outer edge of the drive cone, wherein the second edge unit is formed in an arc shaped section, and the arc shaped section includes a plurality of roll parts arranged in a radial direction.