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JPS56165492

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complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPS56165492
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of a conventional diaphragm, and FIG. 2
is an enlarged view of a joint thereof. FIG. 3 is a top view of an embodiment of the present
invention, and FIG. 4 is a cross-sectional view thereof. FIG. 5 is a top view of another embodiment
of the present invention, and FIG. 6 is a cross-sectional view thereof. FIG. 7 is a top view of
another embodiment of the present invention, and FIG. 8 is a cross-sectional view thereof. 1 is a
diaphragm for low frequency range, 2 is a diaphragm, 3 is a viscoelastic connection member, 4 is
an adhesive, 5 is an edge member, 6 is a cut, 7 is a sheet-like substance, 8 is a viscoelastic
substance, 9 is a voice coil It is.
[Detailed description of the invention] The draft of this ministry relates to the speaker swing W
(plate. In the conventional flat diaphragm, as shown in FIG. 1 and FIG. 2, the diaphragm is divided
into the low frequency range diaphragm 1 and the high frequency range diaphragm 2 and an
adhesive is interposed between the visco-elastic connecting material 3 at the boundary. Bonding
is done by 4. Due to the viscosity of the adhesive 4 and the flexibility of the visco-elastic
connector 3 in order to coat both sides of the visco-elastic connector 3, even-VC contact! It is
difficult to use a special jig, etc., and there is a disadvantage that the mechanical filter
characteristics become uneven due to the extension of the adhesive 4 and the eccentricity of the
viscoelastic connecting material 3σ). j5ノ。 ’J、IiFks(iE*t! > ヶ, 1. 1. □ 5 (1)
/ / μ 設 provided with a sheet-like material K aims to provide a moving plate that is more
uniform and easier to build. FIG. 3 is a top view of an embodiment of the present invention, in
which the fourth weir 1 is a cross-sectional view of FIG. The cut 6 is provided in the curve of the
low frequency range swing plate 1 and the moving plate 2 provided with the voice coil 9, and is
adhered to the sort-like substance 7 with the adhesive 4. The moving plate 2 is connected, and
the cut end 6 is closed with a sheet-like substance 7. The sheet-like substance 7 can
accommodate the edge portion 5. The vibration of the moving plate 2 driven by the voice coil 9
causes the elasticity of the sheet material 7 which blocks the cutting rod 6 so that the low
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frequency range σ) vibration is transmitted to the sound emitting zone J & electric plate 1 The
trend is not transmitted. Since the vibration area of the high sound range is limited to the
imaging plate 2 and the tremor surface area is small, the homologous characteristics of the high
sound range can be broadened, and a flat diaphragm having a flat sound pressure frequency
characteristic can be provided. In addition, since each diaphragm is in contact with the sheet-like
material, the W observation operation is simple, and an adhesive can be protruded or the sticking
position may be deviated << a uniform vibration-J plate can be provided. (2) FIG. 5 is a top view
of another embodiment of the present invention, and FIG. 6 is a cross-sectional view thereof. A
cut 6 is provided between the low frequency range diaphragm 1 'and the imaging plate 2
provided with the voice coil 9, and a part of the material of the cut 6 of the cut 6 is left uncut,
facing or face, The sheet-like article Iii [7, 7 'is adhered to the back with the adhesive 4 to obtain
the same effect as described above. The uncut portion of the cut end of the same moving plate
may be removed after sticking. The adhesion surface of the sheet-like substance is not limited to
the entire surface of the diaphragm. In addition, it is possible to improve the hygroscopic
property more than K by providing an internal loss appropriate for filling the viscoelastic
substance 8 in the portion of the cut end 6. FIG. 7 is a top view of another embodiment of the
present invention, and FIG. 8 is a cross-sectional view thereof. An imaging plate 2 provided with a
low range imaging plate 1m and a middle range, a low range imaging plate 1 # and a poise coil 9
and a cut fi ', 6' is attached with a sheet-like substance 7.7 'with an adhesive 4. Do.
By setting the sheet-like substance 7.7 ′ to be different, or changing the width of the cut 6 ′, 6
′ ′ or the width w ′, w ′ ′ of the sheet-like substance 1 ′ ′ ′ and the mid-bass area
shooting It is possible to change the pitch range of the 9 females to transmit to the moving plate
1 #. A voice coil may be thrown and driven mutually on each shaking (3) moving plate. In the
above configuration, the diaphragms are arranged concentrically, but there is no limitation, and it
is possible to provide a cut in an arbitrary V shape, and an example of the bonding method and
adhesion is described, but fusion and the like can also be used and it is not limited. Therefore, the
effect of being able to be manufactured by simple work and to provide an @ 1 plate with less
variation and uniform characteristics is great.
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