| 摘要 |
PURPOSE:To improve a frequency characteristic of the titled speaker and to easily assemble by installing a damper between a step part having prescribed stiffness installed at the intermediate part of the coupler which drives a flat diaphragm and a step part of the frame. CONSTITUTION:The flat diaphragm 1 and a bobbin 5 are linked through a coupler 14. A voice coil 6 is wound at the bobbin 5, a damper 8 fixing an outer circumference is bonded at step part 11 of a frame 10, and oscillating in the A direction of the arrow, the coupler 14 is driven. In the coupler 14, a step part 17 is installed at the intermediate part, a prescribed stiffness is held and the damper 13 is bonded between a step part 17 and a step part 12 formed at the frame 10. Thus, by the mechanical low band filter action of the coupler, good frequency characteristics are obtained and the assembling work is easily executed. |
