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JPS60181983

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DESCRIPTION JPS60181983
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a cross-sectional view showing a conventional electrodynamic vibration unit, FIG. 2 is a
cross-sectional view showing one embodiment of the present invention, and FIG. 3 is an
electrodynamic vibration unit according to the present invention applied to a car door 4 shows a
case where the unit is applied to a vibrating chair, a is a perspective view, and b is a crosssectional view. DESCRIPTION OF SYMBOLS 1 ... Cover, 2 ... Halter-flate, 3 ... Trough flate, 4 ...
Moving coil, 5 ... Damper, 6 ... Case, 7 ... Magnet, 8 ... Pole yoke 9, magnetic gap, 10 to 17 parts of
medium and high-tone reproduction speaker, 18 punching cover, 19 electrodynamic vibration
unit according to the present invention 20 ambient Diaphragm, 21 ... car door, 22 ... oscillating
chair.
01-05-2019
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