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JPS5710179

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DESCRIPTION JPS5710179
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional flat
plate speaker, and FIG. 2 is a plan view of a flat plate diaphragm of the present invention. 1 'is an
edge portion, 2 is a vibrating portion, 3 is a damper portion, 4.6 is a slit, 5 is a rib.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flat diaphragm
in which a main body vibration portion, a peripheral edge portion, and a part of a central damper
are simultaneously formed. Conventionally, as shown in FIG. 1, a magnetic circuit is constituted
by the center pole 7, the magnet 8 and the plate 9, a magnetic gap is formed by the center pole 7
and the plate 9, and the number of turns of the voice coil 10 at the center of the magnetic gap.
Place the department. Attach the center shaft 11 to one curve of the center pole 7 and stick the
entire surface of the damper 12 on the upper surface of the center shaft 11 Attach the inner
edge of plate 18/6/772 edge, and attach the inner circumference of edge 14 to the outer edge of
flat plate diaphragm 13, and attach the outer edge of 2 in 14 to the outward acid of Grate 9 It
was This 4 takes the trouble of sticking sound at the time of speaker assembly, and there was a
lack which produces variation in a speaker custom-made. The present invention has been devised
to remove the above-mentioned defects, and the embodiment shown in the drawing will be
described with reference to FIG. 2. As shown in FIG. It is a flat plate type moving plate in which
U-corrected node 4 is drilled, many radial reinforcing ribs 5 are formed in main body vibrating
part 2, and many arc-shaped slits 6 are drilled in center da / pa part 8. is there. Attach the center
of the lower surface of the center and lower surface of the part 8 to the upper surface of the
center pole 7 and attach it to the upper surface of the center and axis 11. The upper end of the
voice coil 10 is attached to the lower surface peripheral portion of the central damper portion 3
to form a flat plate speaker. Since the structure according to the present invention 1d d is
formed, the main body reed part, the center / damper part and the peripheral edge part are
simultaneously formed and manufactured, so that the speaker assembly is simplified, the
vibrating part While reinforcing the diaphragm main body by the reinforcing rib 5 of 2, there is
11-05-2019
1
an effect that the variation of the custom made speaker is small. In order to prevent the flow of
air, we shall take measures to prevent the flow of air in the wedge center damper part and each
slit of the peripheral edge part.
11-05-2019
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