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JPS56165491

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DESCRIPTION JPS56165491
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a diaphragm
portion of a conventional flat speaker, FIG. 2 is a cross-sectional view showing a diaphragm
portion of one embodiment of the present invention, and FIG. 2 is an enlarged sectional view
showing a part of FIG. 2, FIG. 4 is a sectional view showing a diaphragm portion according to
another embodiment of the present invention, and FIG. Is an output sound pressure frequency
characteristic diagram shown in comparison with FIG. 10 ииииии Flat diaphragm, 11 ииииии Frame, 13
ииииииииииииии
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fine speaker
having a flat plate mounted on a frame by means of an edge. In such a conventional flat speaker,
as shown in Th + FIGS. A and b, the diaphragm 3 is supported by the 7ylA, 2D multi-kno> and the
frame 4 using the roll edge 1 and the reverse roll edge 2, respectively. For this reason,
unevenness occurs in edge 1 or 2 particularly in the T # range, and a single folding effect due to
the shape of this edge causes another disturbance that can be seen in 9 intervals of the length
shown by a solid line in the 5th row. It comes to occur in f frequency period ? ti characteristic.
In addition, due to the sound loss due to direct resonance due to the edge resonance that occurs
in the middle range, increase in disturbance of sound pressure circumference 1 wave # y%
property and tube harmonic distortion that can be seen in Fig. 5 C, residence and B? It occurs. In
fact, the shoulder effect at edge 1 1. Thin shaft or about half a is a t и, + much ?? no kana ?
sense table as the circumference are shown by C1 effective vibration area or FIG. 1 aKO as
Suhika that can contribute to. To the east, there were many problems, such as the fact that each
building of the circle 1Ill & I 1 minute of the edge 1 or the diaphragm 3 had a luk supply, and the
low-range regeneration of the Nubica was limited. This device was not considered in the abovementioned conventional intermittent point KM, and the purpose of the device is the sound
piezoelectricity ? C ? ? ? ? ? ? ?? ?? ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
? ?It is an object of the present invention to provide a planar slider capable of suppressing the
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distortion addition and widening the area of stationary vibration of the diaphragm. An
embodiment of the present invention will now be described with reference to the drawings. &
The motive 10 does not have a direct residence which is slightly smaller than that of the side of
the frame 11, and between the side compensation and the frame 11. It is supported on the frame
11 by an edge 12 which is interposed between a shield and an adhesive or the like and is formed
by # a tight speaker tfc continuous voice. As the nerve valve main body, urethane, butyl rubber,
and the like having 11 uniform elastic modulus can be used in the range of the inseparable
amplitude in the stretching and shrinking directions, and the inertia is small and small. In the
case of the above-mentioned speaker C.sub.0, when the diaphragm 10 is moved, the foam itself
or the film shown in FIG. 3C is expanded and contracted as shown in FIGS. By the way, when the
vibrating plate 10 vibrates, the pressure difference between the inner washing of the scratch side
plate 10 and the outside may occur, the air may be supplied to the edge 11, the nitrogen may
pass through the edge 11, and enter and exit as arrow. At this time to the edge, that 81!
Depending on the foaming ratio of the bait and the shape of the ball, such as the hardness and
the length, the appropriate viscosity resistance is given, so that the ? does not occur in
comparison with the amplitude.
The flat loudspeaker described above offers many advantages as follows. (11 Compared with the
noise in FIG. 1, the effective 1 f Ipj of the diaphragm can be expanded as shown by D in FIG. 2,
and the output sound pressure level can be raised as shown by the value line in FIG. 5! 5 Can be
done in 5 (2) Since unevenness as in the prior art does not occur in the edge, the disturbance in
the post pressure / succeeding wave number characteristic that has conventionally occurred in
the zone of Fig. 5 in Fig. 5 is small 7! ?????? (31 Etsuji) The 3 compensation of Fig. 5 by ?
?? ? ? fc ? fc fc fc ?? No distortion occurs. (4) The material with a large internal loss is used
as a foldable foam, and division of the diaphragm outer leg can be damped by appropriately
setting the contact surface N between the sparks and the diaphragm. . (5) Since the air
permeability of the edge makes it possible to reduce the stiffness inside the diaphragm, as
apparent from the comparison between the conventional one shown by the center line in FIG. 5
and the one according to the present invention shown by the broken line, The low field
resonance sharpness can be reduced by 2 while expanding the low eye reproduction field. (6)
Since the edge can be made by extracting the heat from the nut-like sum in a jig like the pic 1, it
is cost 0! : It is hairy to less. (7) Finally, as shown in the fourth section, also in the place where
this device is placed on a moving mu flat-blood slinker that moves in and out & inside and
outside as shown in the fourth section, the interval t between the inner and outer diaphragms It
can be reduced to a smaller limit. 4. The ratio of 1 on the 4th page 11 is the conventional E1. 1
shows the diaphragm portion of the flat loudspeaker, 12 shows the action of the device
according to the present invention (-disappearing seconds 1). 2 is an enlarged cross sectional
view of -S in FIG. 2, and FIG. 4 is a cross sectional view showing a diaphragm portion of another
embodiment of the present invention, 1.sup.19. -The 51st Buddha is an output sound
perspiration arm wave number characteristic diagram which makes the characteristic of the
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loudspeaker according to the present invention as a relative axis to the conventional example. 10
иии + surface vibration plate 11 иии и и и и и и и и и и и и и и и и и и и 13 и и и и и и и и и 13 и и и Eji to practical model
registration out ++ person Bionibu Co., Ltd. agent. jfJ4r (Vz) 1 in FIG. 1 to (1 (O) 4/2 (b) f 4 4 in
FIG. :; ?; ? i ? i i 121 Figure 3 (G) (b) (C) 01 010! Dormitory it 211it 111 utility model
registration applicant pai back near co ltd 165 491 agent Hideo Kanno 7! dr (%) FIG. 10 ? 1 ?
FIG. 5 ? A s ?-ha and 1i Ifi book ?, 5491 S. Utility model registration applicant Pioneer
Corporation Hideo Kuwano
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