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JPS5279924

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DESCRIPTION JPS5279924
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half sectional view of a vibration system
component constituting a conventional speaker, FIG. 2 is a half sectional view showing one
embodiment of the speaker of the present invention, and FIG. Fig. 4 is a perspective view of a
dome-shaped diaphragm provided with a voice coil to be configured, Fig. 4 is a bottom view
thereof, and Fig. 5 is a cross-sectional view thereof. 8 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 19 .... Magnetic
gap. Fig.1 Fig.2 1-57 1 開 52-79924 (2) Fig.3 fq Fig.4 Fig.5 -58-
DETAILED DESCRIPTION OF THE INVENTION In the present invention, several parts of the
peripheral portion of the dome-shaped diaphragm are cut up and projected downward, and this
cut-and-raised piece is mounted on: r. It is an object of the present invention to provide an X
buoy kt-integrated and resonance-free characteristic O excellent speaker. Vibrations * Saa, t
shown in 11i3, which are generally more complicated than domed diaphragms and voice pails! I
am 5K III threatened. That is, a voice in which a coil is wound around filzebin 4 on a domeshaped diaphragm 3 provided with a dome 1111 and a flat horseshoe II 2 by forming a metal foil
in a metal and alum 4 beryllium -6). It was composed by joining with Phil 6 剣 7. As described
above, in the case where vibration 1 [S and voice twill 6 are bonded by adhesive 7, depending on
the adhesion amount of adhesive 7, the connection may not be complete and resonance may
occur, and vibration of voice pail 6 may be generated. H-5'k which has the disadvantage that it
can not be absorbed by this one agent to give it the desired properties. The present invention
also eliminates the above-mentioned conventional drawbacks. The following is a description of
the invention: Example f) Ell Fig. Aml-116 ◇ Eight company field section described with
reference to Fig. 11 Because it is made up of the same ring-shaped upper great 12 as well. The
dome-shaped S * slope 14 has been established through the ring ring s on the ζO asc. 8) Do-AlB
18 is formed in the central part by this dome-shaped diaphragm 14a% titanium, ami-cum,
beryllium, etc. O-gold 1 foil, and a flat plate-like peripheral part 16 is formed at the edge of CO-
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do h @ 16014. A plurality of 0 IFI raised pieces 17 are provided on the peripheral edge 1116
and this is projected downward to form a coil bobbin for a voice coil, and the coil 18 is attached
to the cut and raised piece 17 to make a voice film. 1ta is integrally provided 6 る そ し て And
this voice coil portion 19 磁 気 the magnetic gap 20 of the above-mentioned field 鄭 8 O t こ O O
O ド ー ム ド ー ム ド ー ム 形 形 [[[[140 140 140 周 縁 140 140 140 140 A cover 111 is
attached to make a λ beaker こ の This 5 # C, dome shape! ! By providing the voice coil [119]
integrally with the 111 m job 14, the occurrence of resonance in the coupled lll IC is completely
eliminated "I? Scold. As described above, the present invention OX beaker is @ * made, and the
resonance occurs in the voice coil, the diaphragm and the 0III joint) 4), and the inertia is greatly
deteriorated-<10.
With stable characteristics, -1 the vibration of the voice coil is completely dome-shaped vibration
1 [K transmitted and held up, and it is also possible to widen the reproduction band, and it is also
possible to make it @ quantity metallically, It has many advantages, such as the ability to
measure pottery of efficiency, and is of great practical value.
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