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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a piezoelectric
acoustic device embodying the present invention, FIG. 2 is an enlarged view of a portion of FIG. ,
7 · · · · · · · holes or recesses. O 1 · turn ha-43-real opening 49-3519 (2) o? Area (mouth) one 44
【Detailed description of the invention】 礪 称 圧 電 膏 膏 、 新 新 新 新 働 0 0 圧 電 圧 電 11 0
11 11 11 11 11 圧 電 圧 電 圧 電 す み す み す み す み 011mallK hole or I ! Set III, chain hole
"tit! Considering a piezoelectric acoustic device which is filled with ItII K11 bonded steel to hold
the composite adhered to the composite 9 and 7 . Stno * * st ** a true support of the
composite on the base of the piezoelectric acoustic device It relates to the device. The
piezoelectric acoustic device has silver electrodes attached at both ends as shown in 111I. The
nine piezoelectric elements (1) and the diaphragm C are integrated to form a composite, which is
provided with -II K of the case (g) The complex is adhesively supported by the protrusion (2) K11
adhesive (·), the complex is electrically oscillated by the lead wire (3) (3′1) (4) KII, bent and
vibrated to form a square or a square. It is a tour of sound waves. In this structure, the bonding
strength between the case and the adhesive is small O, and the composite may not come off the
case due to a shutter or the like. (1) 49-3519-[12 The above solutions argue the above O defect
■ ■ can be considered O "cIh. The following is a brief description of the embodiment shown
below. The second company company number 1110 value bell 暢 Os minutes O wipes in ■ (i)
the intestine is broken ■ Cabinet, # 4 Ia is between strabismus To. At-(n is rolled into the
support OSS section @ and is a tapered hole, glued hole N, adhesive N) to fill this hole. (Η) may
be a weir or a recess. −) In the conventional O also, the support is Ooki II @ and the 'peripheral 1
@ o4KJ1 adhesive agent' is attached at Oki II @, so that the adhesion is released by impact etc.>
Then, the above-mentioned projection-a hole in the center (n or 90 is provided with a recess,
bonding 1 m (@) is an O-hole or! 111B (adhesion with the raw filled composite of η will be
significantly increased. The adhesive (6) is also not a hard one such as araldite (epoxy resin layer)
but a rubber-based one, and the adhesive strength supporting the running section O node-the
bond strength to increase the adhesion-product However, the conversion efficiency is reduced as
the X-ray energy (2) 49-3519-03 increases. In the 11IIK, sound waves from the complex 0 WI4
@ are to be 斃 IJL slaughtered to Mugangang, but the effect of the present invention is not
changed even in a device in which the sound of ム or i does not change. When a piezoelectric
element of 35φ xo, st, a composite of 50φ x 0, 5t phosphor steel plate 11 and an lO resin 6
support is supported with an adhesive, the conventional one and the 4 ht of the structure of the
present invention) The tensile strength and the drop test are conducted as follows.
葺 な お j テ ス テ ス) 嵐 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S s) As described above,
according to the present invention, the projections 1gII of the support are provided with holes or
recesses, and the K11 steel is filled and supported, so that the support strength of the composite
increases (5) 49-3519-04 The advantage that comes out is the best. Even if it is 1k, the support
may be the case itself <, jlK. (A simple to 1 ■ ■ ■ ■ 1st Cabinet implements the proposal
Piezoelectric 1 sound device 0III ■ ■, 2nd Cabinet (to) 1st ■ IL)-Minutes O expansion group,Garden Oka Okasu Show. (1) · · · Piezoelectric element (2) · · · sea, n + · · ·) aS% (6) · · · · · · · · · · · 1(2) adhesive steel, (接着-A book, a hole or-place. Substitute tll 薫 (4) 49-3519-055? , 1'1A '. 6A51
'U' 33 'Fang? "2 f" ロ (ro) J / 7 generation Ori Seika @ 9149-3519-06
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