Patent ID: 7643648

Claim:
A speaker device comprising: a voice coil bobbin; a diaphragm which is mounted on the voice coil bobbin; and a cap which is positioned in front of the diaphragm and at a position covering the voice coil bobbin, wherein the diaphragm has a first fixing portion in a vicinity of an outer peripheral portion thereof and a second fixing portion in a vicinity of a middle portion thereof, and wherein an outer peripheral portion of the cap is bonded to the outer peripheral portion of the diaphragm or the first fixing portion, wherein plural projecting portions, formed on the cap at positions closer to a center of the cap than the outer peripheral portion of the cap, are bonded to the second fixing portion, wherein the first fixing portion has a projecting portion on a side opposite to the cap and the outer peripheral portion of the cap has a hook-shape claw portion on a side opposite to the diaphragm, and wherein the claw portion and the projecting portion contact to be bonded.