| 摘要 |
PURPOSE:To reduce the length of the voice coil in the axial line direction and thus lessen the weight by providing the voice coil to the node of the division vibration of the flat plate type diaphragm and then fixing the outer circumference of the yoke which supports the diaphragm. CONSTITUTION:Magnet 3 is loaded between the lower and upper plates 1 and 2, and yoke 4 featuring the proper space to the outer circumference of plate 2 is fixed to plate 1. Angle 5b of outer frame 5 is fixed to the outer circumference of yoke 4 via screw 6, and tweeter 9 is attached to inner frame 8 which is fixed to plate 2. Flat plate type diaphragm 14 is supported to frames 5 and 8 via edges 15 and 16 each, and voice coil 11 is attached to the node of the division vibration of plate 14 via the adhering tool featuring the square cross-section. Coil 11 is furthermore supported by angle 5b of frame 5 via spider 12. |
