| 摘要 |
PROBLEM TO BE SOLVED: To provide the shape of a speaker vibration cone which does not produce an undesirable influence on the strength of the vibration cone without generating turbulence in the sound pressure characteristic of a speaker caused by partial vibration. SOLUTION: The vibration cone is structured in such a way that a plane 1e formed by the external circumference 1c of the body 1a of a speaker vibration cone 1 is inclined against a plane 1d formed by the internal circumference of the body 1a. COPYRIGHT: (C)2005,JPO&NCIPI
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