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JPS60134394

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DESCRIPTION JPS60134394
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a longitudinal sectional view showing a papermaking process of cone paper in a
conventional manufacturing apparatus for a speaker diaphragm, and FIG. 2 is a longitudinal
sectional view for explaining a hot pressing process of the same cone paper. FIG. 4 is a
perspective view showing an outline of a conventional hot press, and FIG. 4 is a partially cut
away side view showing the main part of the press, and FIG. Fig. 6 is a longitudinal sectional view
showing an outline of a heater used in the same press, and Fig. 7 is a part showing a main part of
a hot press used in a manufacturing apparatus of a speaker diaphragm according to the present
invention FIG. 8 is a plan view seen from the line II--II in FIG. 7, and FIG. 9 is a partially cut away
side view showing the main part of a hot press according to another embodiment. 10 is a plan
view seen from the line---in FIG. 9, and FIG. 11 is at the same position as the line-in FIG. 7 and
FIG. A plan view showing a main portion of the hot press according to another embodiment as
viewed, Fig. 12 is a side view cut a part of the main part. 1 ... upper mold, 3 ... lower mold 7, 8 ...
heater.
11-05-2019
1
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