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JPS4814226

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DESCRIPTION JPS4814226
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a conventional acoustic
device, and FIG. 2 is a sectional view showing an embodiment of the present invention. 1 · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · air
chamber, 4 · · · · · thin air layer. 2 2 1 63
【Detailed description of the invention】 The main shock plan, i even if Yu. ,, 2 ° 4. This is a
four-in-one 1 'I'll, whose purpose is a surface treatment. 'It's easy to provide small size and
feature more sound 4 instruments, one example, Ike. fR7Fchっ? Conventional. □1*、!
In the following explanation, 1 is a diaphragm, 2 is a piezoelectric element 15, 3 is a damper, 4 is
a case, S is a cover 6, and the case 3 is a damper 3. Piezoelectric element It is a forgery which
mounts I & 劾 1 · Board 1 'Ia next order and mounts it, and the cover 56 □ is mounted and faked
in a shape which doubles with the high frequency l 1 WI & I. 'Because of a structure such as two
or more, the number of parts is large and the size is large)) 1)> 1. l & J-4QJLl-λ λ. k−1・、。
{Circle over (1)}-□ There was a drawback. The present invention is made to improve the abovementioned drawbacks. The present invention will now be described by way of one embodiment
shown in FIG. 2. A film 1 having a piezoelectric effect is a film having a conductive film formed
by conductor plating or gold-vapor deposition on the surface of the film. Make t11 i. The case
2KtK contact attachment "forming a diaphragm is formed while applying a certain phase 9 force.
Case 2 above is a slow motion 41i1. スチフネス! In order to make it vm, 1 air layer 1 and its I,
10 air chamber 3 can be made on the side of MI 10 with middle spring 2a so as to make pseudostone, and to make negative terminal, case 2 is plated with conductive resin on resin. Or use a
conductor such as pull i. . This invention is a stone with the above structure. Therefore, the
number of parts is smaller than that of the conventional product, and A is easy to manufacture
and 1S small in size, and it has an advantage that it can obtain flat and moderate frequency
characteristics as compared with the conventional oFEts sound sheet si. One figure direction
o111JIIikm clear λ L '-' IJ, ζ,-Figure 1 is a conventional O acoustic device 0-1. Fig. 2 is a cross-
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sectional view rIn (2) showing one embodiment of the invention Al 1-11 Li) L-h's 1 ". 1-film
wiping piezoelectric element, 2-case 6-care, 4-thin air-r ',',: ',%. Attorney Attorney Attorney Minor
(r) 0 + 5i% ') 7 °. 1、=。! -11 1-1 7 1 11: 5: 2 'F @ 2 m) → this 2 j, j 11 + 11 records of the
turtle I attached document (1) specification, Lr (, 1 drawing till 1 f (1 ー 4 ー 1 躇 OH 1 躇 1 1 1
1 1 ー 削 削 4 エ ° 4 t ° character deleted 1 益 41-宇; = = L Two letters removed ·) · 1 no ("
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