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JPS58135194

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DESCRIPTION JPS58135194
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a longitudinal sectional view showing a flat plate speaker having a conventional subcone, FIG. 2 is a longitudinal sectional view of the conventional sub-cone, FIG. 3 is a longitudinal
sectional view showing one embodiment of the present invention, FIG. b is a plan view and a side
view of a sub cone which is an essential part of the present invention. In the figure, 1 is a
magnetic circuit unit, 2 is a voice coil, 3 is a voice coil bobbin, 4 is a frame, 5 is a flat diaphragm,
6 is a subcone according to the conventional embodiment, and 7 is a subcone according to the
embodiment of the present invention. In the drawings, the same reference numerals indicate the
same or corresponding parts.
11-05-2019
1
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