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JPS5052932

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DESCRIPTION JPS5052932
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half sectional view showing a general Sbica,
FIG. 2 is a half cross sectional front view of a conventional Sbica subcone, and FIG. 3 is an
embodiment of the Sbica subcone of the present invention. Fig. 4 is a half sectional front view
showing Fig. 4 and Fig. 5 is a half sectional view of Sveica showing an application example of the
same saf cone. 15 ...... conical surface 16, 17 ...... stepped portion, 18 ...... coupling portion. Fig. 1
Fig. 2-77-Japanese Utility Model Application Publication No. 50-52932 (2) Fig. 3 Fig. 4-78-
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement
of a spill force sub-cone for applying a bumpy y-edge Km of a voice film coupled to a diaphragm
in order to extend the high range of sound pressure-frequency characteristics. In general, as an
excellent speaker in the high frequency range, there is one configured as shown in 11th l. That is,
the plate 2 with the center ball 1, ring-shaped! The 7th frame 6 is connected to the field 11118
formed by the gnet 3 and the upper plate 4, and a gasket door and a diaphragm are attached to
the 7th frame 60, and a voice is formed in the center of the diaphragm 8; 11. Join the fill bobbin
1 o wound at the bottom with 2. The middle portion of the coil bobbin 10 is supported by the
damper 11 and the sub cone 12 is coupled to the upper end of the coil bobbin 1 o. The
conventional sub-cone 12 is conical as shown in FIG. 2, and the coil is formed with a coupling
s13 to the pin 1o at its central portion. As described above, in the case where the connection s13
to the coil bobbin 10 is provided only in part, if the type of the speaker is changed and the
diameter of the fill bobbin 10 is different, the sub cone 12 having the connection portion 13
having a size matching the diameter It had to be manufactured, it was not possible to share parts,
it was not preferable in terms of productivity, and it was disadvantageous in terms of cost. The
present invention eliminates the above-mentioned conventional drawbacks. That is, the speaker
nappoon according to the present invention is configured as shown in 31IllK. The subcone 14
made of pulp fiber and formed into an eight-lobe shape, this subcone 140 conical surface 18 is
provided with several steps 3 · 16.17 as a connecting portion to the fill bobbin 1o, and the
12-05-2019
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central portion Because the bond 11115m is also formed. By this configuration, not only the job
shown in FIG. 1 but also FIG. As shown in FIG. 1s6, the Ii1 portion 16, 1 of the conical surface 16
can be incorporated into the fill bobbin 10. That is, the present invention can be applied to fill
bobbins 10 having different diameters by the number of steps provided on the conical surface
15. The speaker sub cone of the present invention configured as described above can be used as
a turtle with different voice twill diameters and can be used for several types of speakers, and
can be standardized completely, and can be produced in large quantities and used. From this
point, it is advantageous to wear in terms of pressing, and it is a stone with a great practical
value.
12-05-2019
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