DESCRIPTION JPS5551545

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DESCRIPTION JPS5551545
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a coaxial speaker according to
the present invention, FIG. 2 is a cross-sectional view taken along the line tt-n in FIG. 1, and FIG.
It is the side view which cut a part and FIG. 4 shows the top view. 3
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flat diaphragm, 7 и и и inner edge, 8 и и и и и и и и и - inner pole, 11 ...... through chamber, 16 ...... leg, 18
...... frame, 19 ...... tweeter flat speaker, 20 ... и и и и и Flat diaphragm, 23 и и и и и и 1 damper, 24 и и и и и и и
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и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и interface surface.
DETAILED DESCRIPTION OF THE INVENTION The present invention is a coaxial type speaker in
which a high-tone flat direction speaker is disposed separably in the center of a low-pitch flat
type speaker, in which both speakers are joined [the IO gap is closed by a damping material
Therefore, it is intended to prevent the back pressure of the low sound speaker LIIIi speaker
leaking from the lumbar gap, thereby eliminating the generation of harmonics. Hereinafter, the
present invention will be described in detail by the illustrated embodiment (11 ?-and 4-4 in Fig.,
In the figure, 1 is 7 frames, 2 is a blind hole, 3 is a flat type loudspeaker for bass, 4 is the flat
diaphragm. A square chamber hole 5 is formed at the center of this plane vibration 1 [4, 6 is the
outer edge 7 is the inner edge, 08 is the magnetic circuit, and 9 is the! Gnett, 10 is an inner pole,
and a through chamber 11 is formed by the inner space of the inner ball and the chamber hole 5.
Reference numeral 12 is a plate, 13 is a voice coil, 14 is a damper, and 15Fi damper is a single
unit 016 is a plurality of legs, and these legs 16 are fixed to the inner pole IOK by screws 17. 18
is a square frame fixedly supported by the above-mentioned leg 16 and O 19 having one edge of
the above-mentioned inner edge 7 attached to the upper surface of the wedge frame 18 is a flat
type speaker for high sound The sub-speaker 19 is formed at the center of the low-pitched
speaker IIW speaker 3 and disposed in the nine through-chambers 11. The reference numeral 2
o is a flat diaphragm, 21 is a voice coil, 22 tily bar, a 23 ? damper, and 24 is a frame
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continuously (2) ? to one damper 23. The equalizer 25 is fixed to the frame 24. The magnetic
circuit 26 is a magnetic circuit, the magnet 27 is a plate, and the plate 28 is a plate. The damper
23 is fixed to the upper surface of the plate 28. Further, the outer peripheral edge 28m of the
plate 28 engages with the above-described locking step surface 16m of the leg 16 to position the
high sound use speaker ff11 in the rear direction to falsify. Reference numeral 29 is a connected
gold odor, and 30.31 is a screw. Both speakers 3 and 19 are connected by the connected gold
odor and screw. Therefore, in the through room 11 of the low-pitch flat-panel speaker 3 (in the
case where the high-pitch flat-panel speaker 19 is housed and shown in FIG. 3, a frame 18 on the
low-pitch 11 m speaker 3 side) The frame 24 on the high-tone flat-panel speaker 19 side is
joined. In this case, if there is a gap on the joint surface A, the frame 18 is fixed at predetermined
intervals by the plurality of legs 16 so that the back pressure of the flat diaphragm 4 is between
the legs 16 described above. Leaks to the outside through iiA. As a result, the third harmonic is
generated and the sound pressure frequency characteristic is deteriorated.
Therefore, in the present invention, the above-mentioned bonding surface is filled with a
damping material of liquid, and the dust in the bonding surface A is closed to prevent the back
pressure from leaking, thereby generating the third harmonic. 0 completely removed
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