| 摘要 |
PROBLEM TO BE SOLVED: To provide a loudspeaker including an edge supporting a diaphragm and having a linear portion and a nonlinear portion, which reduces a difference between strokes of the edges of the linear and nonlinear portions to output more excellent sounds. SOLUTION: The loudspeaker includes the diaphragm, a magnetic circuit which vibrates the diaphragm, a frame connected to the magnetic circuit portion, and the edge provided in the frame and supporting an outer periphery of the diaphragm. The outer periphery of the diaphragm includes the linear and nonlinear portions. The edge includes a linear edge in the shape of a straight line supporting the outer periphery of the diaphragm and a nonlinear edge not in the shape of a straight line supporting the outer periphery of the diaphragm. The nonlinear edge has the same stiffness as that of the linear edge. COPYRIGHT: (C)2011,JPO&INPIT
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