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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing the squica
according to the present invention, FIG. 2 is a cross-sectional view of a diaphragm used in the
squica, and FIG. X coil, 9 ...... coil bobbin 10 ...... Tatsuueu unit, 11 ° ° .... Gomushi Ichito. Fig. 1
Fig. 2-75-50-52931 (2) Fig. 3 1 1 1 11 11 24 11 1 11 1 11 1- to 1 4- 1. One thousand one
thousand two-one 1 r / 1. / ■ ■ 1 1 ■ ■ ■ ■ ■ ■ ■ ■ ■ 11 11 11 1 1 ■ 1 (11-番 1.11 I
111 1 1 ゝ OO υ 7 * i. 2K 2826 N 5 KIO # c 12 20 20 K shoulder J skin Toichi Ichi -76-
[Detailed description of the invention] The present invention dr-m fist diaphragm voice coil
suspended 11Frr4R cost-a different voice to the rubber different--Sail full name <2 Young
Emperor 1 mm, sound pressure- In the speaker which used the dome-shaped vibration m1it, it
was algi foil, deme / foil, as a gutter board. f) Mylar film, Mylar 74, No. 5, etc. are left as tmaterial or city t-jllt material, impregnated with phenol 檎 2 fat, matured, and coated with elastic
44 poda emetel resin. The thing is used. In such a diaphragm, since the rising coil sK voice coil is
coupled with the coil and the coil is incorporated with the adhesive and incorporated in the field
section etc., the Young's modulus becomes almost constant, and the sound pressure-frequency
am property is There was a drawback that it could not be translated freely. The present invention
eliminates the above-mentioned conventional drawbacks. Hereinafter, the present invention will
be described with reference to the drawings of one embodiment. A ring-shaped i-Danet 3 is
disposed on the plate 1 and a top plate 4 is disposed on the magnet 3 so as to have a field plate i
+ tat. Configured. A dome-shaped vibrating plate is attached to the upper portion K1 ′ ′ 1+) of
the field section 6 6 kR, and a coil bobbin 9 on which a coil coil S is wound is suspended at the
rising edge of the vibrating plate T . The diaphragm T is made by impregnating a cloth base
material with a phenol crosslinking solution and applying a synthetic rubber latex, and the
structure is as shown in Fig. 1 and in addition, as shown in IIM z ■, rise # 10 to # 10. The rubber
sheet 11 is heat-sealed, and the coil povin is rolled on this. There is a system K> 15 on this
rubber sheet 11, I [Jll! By selecting in advance, the sound pressure-frequency upper limit of the
frequency ** is made to go to bed in a selective design. Su & b, dome shape shaking! The high
frequency reproduction limit frequency of h1 [is obtained by the following equation. h−AI、
’+? = J)-, × 10 'ga ×-Note that Mv is a poison mass, MD is a vibration mass, H is a pan-bowl
height 1, Dtl swing Wk plate up-lifting part 1 and a bowl with a rubber sheet The composite
bearing ratio of the diaphragm, the door is IFII of the material of the diaphragm, and A is a
constant. From such a thing, it is possible to change the high frequency reproduction limit
frequency /, by changing the Young's modulus 5. That is, as for the speaker KsP, its frequency
characteristic is that only the range of the low frequency reproduction eye field frequency and
the high frequency re-jfl field liquid number is threatened with the re-light, and the oll reregeneration limit frequency beautify Then, speakers of various frequency characteristics can be
This Mlll is applied 1 to 5, the Young's modulus of the present invention is constant, the Young's
modulus of the diaphragm is made constant, the flexibility and the material of the rubber sheet to
be intervened S of the sliding plate and the voice niil pobin If the Young's modulus of the rubber
sheet is selected to improve it, it is possible to make the sound pressure-frequency characteristic
adjustable by changing the synthetic ratio l. The sound pressure-frequency characteristics of the
experimental connection, Gomwon-L hardness 80, 9Q ′ ′, 91 ′ ′ r ′ ′) became as shown
in the third column. That is,-shown by -1-4 is @@ 5o-11! 1ll leo °, failure t + 98 "v:% cvfys, and
at or high II major / X stretch = 1 has become. As such, the speaker of the present invention has
a large value of 11 kl '%, which is of great practical value. 4.1i 11 Brief Description IIA1m # i A
sectional view of a 4-fold sliding board used for a new 26S ++ Fi 閤 speaker showing the speaker
of the present invention, and 蒙 3 are between the sound pressure-frequency characteristics. 6 &
Industry Ills, 7 ... diaphragm, ... die coil, 9-bobbin, 10-rising portion, 11 ... rubber sheet. Attorney
Nakao Toshio, who is an attorney's name patent attorney, or one person Figure 1 q6f μ'fθ 25 2
1 1 1 1 (] standing-name of an agent attorney Toshio Nakao et al 1 person 1 figure 3 pi ~) 8 會60
L--------------------1-□-\-Jl JO I A +, 2 g 2 to 264 916-2326 Shoulder J skin-substitute for one agent
Toshio Nakao L'in "z □ 1 □, 6 6 other than the above mentioned other treasures and agents (1)
inventor address Osaka Prefecture Kadoma city Oji Kadoma address 1006 Matsushita Electric
Industrial Co., Ltd. within the company オ, ,, husband (2) agent Housing +, Osaka
Prefecture Kadoma City Ogata Kadoma 1006 Matsushita Electric Industrial Co., Ltd. Mr. Il G 152)
Patent Attorney Shigeno Shigeno
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