| 摘要 |
PURPOSE:To adequately reproduce low sounds even when the diaphragm is not circular, by forming the diaphragm at different corrugation intervals by the radiation direction and by using a suspension which has notches on the part of it. CONSTITUTION:On suspensions 5, 6, corrugations 7, 8 are so formed that their intervals are different according to the direction of radiation. Furthermore, notches 9, 10 are made radially on the suspension 5, 6. Thus, by forming the corrugations 7, 8 at different intervals by the direction of radiation, the suspensions can be made as large as possible according to the outer shape of the loudspeaker. Furthermore, since notches 9, 10 are provided in the radial directions, tension is mitigated even if its part is deformed, and proper flexibility is provided to the suspension 5, 6. As a result, it becomes possible to lower the resonance frequency resulting in improvement of reproduction capacity comparing with those which have not notches. |
