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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a conventional domeshaped diaphragm, FIG. 2 is a sound pressure-frequency characteristic diagram of a speaker
using the diaphragm, and FIG. 3 is a dome-shaped vibration of the present invention. FIG. 4 is a
cross-sectional view showing an embodiment of the plate, and FIG. 4 is a graph showing the
sound pressure versus frequency characteristics of the speaker using the same diaphragm. 3 ииииии
Dome part, 4 ииииии Edge part. Fig. 1 'Fig. 2-73-Japanese Utility Model Application No. 50-116428
(2) Fig. 3 Fig. 4 = 74-
[Detailed description of the invention] 1 specification 1, the harmful name of the draft iI "domeshaped diaphragm 2, accommodative chasm control-claims ? ring 1 Illt thin, dove forged once to
become a shore A dome-shaped vibration cylinder 3 equipped with a KIIIR dome portion, a ** rJ
# [e description] The present invention is a high-performance vibration tube often used for a
speaker for high-pitched range It is a turtle that is trying to measure. In general, dome-shaped
vibrators are often used as speakers only for middle and high tone ranges. This is because the
dome-shaped vibration 1 & has a 41i WI tube which can be configured to be very small in
comparison with the lead-shaped peristaltic feature, and can be a directional characteristic tube
a. In this conventional dome-shaped vibration weir, synthetic rubber oil such as temen, alminium
and metal such as-leek ? chill, pulp and cloth etc. are equalized in JP,? , In this? In the film 7 'in
the interview threatening film thickness of 30 ~ s10? 4 good (used-beauty 2-1). ? And, as
shown in FIG. 1, the lII is connected to the tweezers s1 to form the dome lR12 with a constant
thickness. In such an incense song, the characteristic of the "It It ? lIt number of the ? ? ? ?
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? i i i ? i ? ? I I members of Ii-.
From such a thing, recently, using a cloth called soft dome carving 4I motive has come to be
squeezed in many ways if it is beaten by one effect. The cloth is formed by impregnating cloth Kl
and the respective impregnating agents. There is no 41 peaks due to this ll ?1 because there is
no -1 degree of ml111m number, and the sound quality is also -j, but the material of the cloth is
made of the soaking layer 15 of the impregnating agent or the soaking layer Of the product, and
the product mIkJ? ░ stable diaphragm can not be beaten. Water groove livestock entrusts the
above conventional defects. In the following, -N Fuji aE% & 4 Fig. Of the home * * 1 "1 kJ
example] a и 1 ░ ?. и In other words, as shown in FIG. 3, the present invention makes the Jj 1
portion of the dome portion a thin and thickened in the past, and becomes continuous with this
circumference + 1 bit. i! 41-4. If you say good, j11flAo thickness 02 o / 7 & Su na, ? i! Make B
60 ?. In such a configuration, when pulp fiber is made into a sheet shape with a dome-shaped
wire mesh and pressed with a mold, the stagnation 10 is changed, and in such a method, the self
weight is shown to the third piece K It is possible to obtain a vibration bed like this. !
As shown in Fig. 4, it is possible to inject gold from the port and make it into the case of gold
bridge or synthetic grease, or to make it possible to obtain a seal of more than 'em'. Sound
pressure-pigeon a * @ can be considered stable. This is a soft dome that has a certain number of
co-cycles, and it is close to characteristics. Is obtained. 41 ░, quality and material variation can
be reduced, and many teeth with stable and specific characteristics can be prepared. As described
above, the dome-shaped diaphragm of the present invention can be made stable in both time and
direction (2) and is of great practical value.
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