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JPS6140090

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DESCRIPTION JPS6140090
[0001]
Brief description of the drawings
[0002]
1 is a longitudinal sectional view showing one embodiment of the present invention, FIG. 2 is a
bottom view of a voice coil bobbin showing another embodiment of the present invention, FIG. 3
is a longitudinal sectional view of the same, and FIG. FIG. 5 is a longitudinal sectional view
showing the technology, and FIG. 5 is a diagram showing frequency characteristics in the prior
art. 1: Yoke, 1b: Center pole, 2: Magnet, 3: Plate, 3a: Inner circumferential surface,. 4: Magnetic
air gap, 5: frame, 6: diaphragm for bass, 7: gasket, 8: voice coil bobbin for bass, 9: voice coil for
bass, 10: damper, 11: diaphragm for treble, 12: voice for treble Coil bobbin, 13: voice coil for
high-pitched sound, 14.14 ′, 15: silicone rubber, A: width of installed coil, B: thickness of the
plate 3.
01-05-2019
1
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