Patent ID: 8045746

Claim:
A speaker device comprising: a generally conical diaphragm having an opening formed in a generally central position of the diaphragm; a voice coil bobbin fixed in an inner circumferential portion of the opening of the diaphragm; and a diaphragm reinforcing annular member disposed near a fixing section fixing together the diaphragm and the voice coil bobbin, wherein the diaphragm includes a bent portion bending from an inclined surface of the diaphragm towards an inner side of the opening of the diaphragm, and the voice coil bobbin is fixed to an inner circumferential surface of the bent portion, the annular member includes, in the form of an integrally formed body, a diaphragm reinforcing portion having an inclined surface which contacts the inclined surface of the diaphragm close to the inner circumferential portion thereof and is fixed to the inclined surface of the diaphragm by an adhesive agent, and a cylindrical portion forming a liquid holding portion and filled with the adhesive agent, the liquid holding portion is formed by a gap defined by the voice coil bobbin, the cylindrical portion, and the bent portion, and the voice coil bobbin, the cylindrical portion, and the bent portion are affixed together by virtue of the adhesive agent contained in the liquid holding portion.