| 摘要 |
PURPOSE:To suppress divisional vibration and to upgrade the strength of a speaker diaphragm by dividing an circular core shaped electrokinetic type speaker diaphragm into fan-shape segments, making the shape of the diaphragm asymmetrical. CONSTITUTION:The diaphragm 1 is divided into division pieces 2, 3 in a fan- shape, and the pieces, 2, 3 are made different in shape with each other. By dividing the diaphragm into the pieces and by varying the shape of the division pieces as above, the divisional vibration of the diaphragm can be suppressed, and also the diaphragm is reinforced by rib-shaped step formed at the joining boundary of the division pieces.
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