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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side emissive view of a conventional speaker,
FIG. 2 is a side sectional view showing a joint portion between a voice coil bobbin and a
diaphragm of the speaker, and FIG. 3 is a voice of the speaker FIG. 4 is a side cross-sectional view
of a speaker according to an embodiment of the present invention, and FIG. 5 is a side showing
the joint portion between the speaker No-Hoice coil bobbin and the diaphragm. 6 is a vector
diagram showing the force relationship acting on the voice coil bobbin of the same speaker and
the diaphragm, and FIG. 7 shows the conventional speaker shown in FIG. 1 and the speaker of
this embodiment shown in FIG. It is a characteristic view which compares and shows a sound
pressure frequency characteristic. 1 ииииии Plate with pole piece, 2 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 и voice coil bobbin, opening angle of the diaphragm of the 5a и и и и и и
voice coil EP, beta и и и и и и opening angle of the second diaphragm. Fig.1 Fig.2 Fig.3 -81- ? 5 51155636 (2) Fig.4 Fig.5 Fig.6 Fig.7 Number of liquid solutions 7: (Hz) -82
[Detailed description of the invention] With regard to the present invention department Nubica, it
is a% O with the purpose of making it equal to the number of perifusion fluid. The conventional
speaker has a ring shape between the pole piece-equipped great 1 and the top plate 2 as an
example of which is shown in the jl E 1 figure! Dane, Toa is formed to form a field section, and
the upper 111K of the top plate 2 has 7 frames 4 attached and the center hole aII of the top plate
2 and the plate 1 with a pole piece 1) pole piece @ 1 m + ! : A voice coil 6B is placed on the OMK
coil coil 2BCIIhIll, and the voice coil is placed on the damper 6 whose one end is the chamber 6
and the voice coil 6 is attached to the frame 4. The first vibration 1 [7] and the $ 120 111 111 1
plate & plate covering the mouth of the bobbin unit are spring-loaded to the upper end portion of
the voice coil bobbin 6 and the first vibration 1 [7]. The other end of 7 is identified as 7 lame 4
by Gaske #) * and is a soda structure. In this way, the voice coil bobbin 6 and the 3 g 1 attached
to the bobbin 6 and the second work duty 7 ░ OS + are measured with reference to the wall
surface of the bobbin 6 as shown in FIG. Second movable plate 718f) Opening angles ? and ?
are different from each other. For this reason, the force F generated from the voice coil 6a is the
first one. It disperses on the second diaphragm according to the difference of the opening angles
? and ??. Considering this as a vector ll1K indicating the 35th K, a composite stress T of the
stress 12 of the first diaphragm 7 and the stress 12 of the twentieth line a, etc., qfK The
horizontal stress component thereof is the diameter of the bobbin 6? (?: acting as a stress, the
above I & & ? ? & ?? ?? ?? ?? ?? 3 ') 3 vibrations, voice coil 8a ? driving force is via
the motor 76 & 7 . It is not transmitted well to a. Considering this in terms of the I] # @
characteristic, it is difficult to reproduce the high-pitched range, and inconveniences occur in
sound quality. The present invention is intended to solve the above-mentioned conventional
defects, and let us describe the drawings of the fourth and subsequent mls in the following with
reference to the drawings, the first part 4L shows the present example q) speaker, The parts
having the same functions as those of the conventional speaker shown in FIG. As shown in the
enlarged view of M5, the voice coil bobbin 6 and # 1. The second vibration 1 [T, in the part of @.
That is, the first 1. measured on the basis of the e surface of the bobbin 6.
Second diaphragm 7. The same angle for setting the opening angle II l? of II is at the same
setting point. The force F generated by the voice coil ?a) is increased by the factor K. The second
diaphragm 7.8 is transmitted to a weir or the like, and as shown in turtle 6-, the first 1112 t) @
moving plate 7. The stress F + and Fz of S become equal. 4 Therefore, the above stress F + and
FzO stress 1 'act in the direction along the inside of I of voice coil povin 5, that is, in the opposite
direction to the generated force l), and voice coil maCI III working Km * There is no deformation
of Povin 6 When the pressure frequency t of the conventional speaker with the above-mentioned
Example O speaker and the front shield is measured, a result as shown in TWJ is obtained, and at
Tm11, 110 is the characteristic of the conventional speaker -it, a * 11 Shows the characteristic
line of the loudspeaker of the embodiment. As shown in FIG. 7 or bT14, it can be seen that the
sound pressure level of the work treble range is birdier than that of the speaker of the present
1IjI 11111 and the conventional speaker, and the treble range reproduction is excellent. As
described above, in the speaker of the present invention, the voice coil povin iC is connected with
the virtual opening angle of the 29 IA virtually connected to the speaker of the present invention.
It is an excellent, light-in-the-life quality that can be traced to life.
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