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JPS49938

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DESCRIPTION JPS49938
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a Sbiker vibrating
membrane used in the present invention, FIG. 2 is a perspective view showing a support of the
Sbica vibrating membrane, and FIGS. 3 and 4 are views of the present invention. It is a sectional
side view of each example which expands and shows the support structure which is an important
section. 1 ································································································································································· 3,3 ′
··································· 41 · · · · · Flat carrier sound 1 Figure 1 Figure 2-81-opening 49-938 (2) Figure 3
Figure 4-82-
DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a piezoelectric
material obtained by polarization treatment of a composite material of a polymer material and a
ferroelectric material is used as a pimorph sheet and formed into a three-dimensional shape such
as a cylindrical shape5. The speaker diaphragm relating to the support 11g'iMK. Hereinafter, the
present invention will be described with reference to a rumor example of the drawing, which is
shown in FIG. 1 and obtained by polarization treatment of a composite material of a polymer
material and a ferroelectric as described above (1) 49-938- A speaker vibrating film / obtained
by forming the piezoelectric body obtained in the above 02 as a bimorph sheet and forming it
into a cylindrical shape. The present invention provides a support structure KQ for supporting
such a speaker diaphragm 1 on a support body 2 'shown in FIG. 12, for example, a speaker
diaphragm 1Fi having such a three-dimensional shape, and its support end It is necessary for W
/, / 'to be sufficiently large-to have a compliance. For this reason, the present invention is
designed to support the support end / ', f'0 support without using two different materials, and
the above-mentioned cylinder is shown in FIG. The case of supporting the support end f, / 'of the
shaped loudspeaker oscillation 11 / will be described. 3 is an enlarged view of the supporting
portion, and a bending portion 3 is provided at an end portion of the speaker vibration 1khrill /
(a flat PL # extended from the bending portion 3 is supported as described above. The body is
adhesively supported by an adhesive. The compliance can be increased by this bending 1ift, JK,
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and furthermore, several w of the bending portion 3 may be provided, or (, (z) 49-938-03 or k
may be selected as the end of its shape. Therefore, obtaining sufficiently large compliance
becomes IftT. In the other cold case of the present invention, the bending portion 3 'is generally
formed on only one of the two sheets constituting the single-force vibration WsI, and the flat
portion represented by # from the bending portion In order to adhere and support the part 'on
the support (in the case of k, after forming only one of the above sheets into a cylindrical shape
in advance, the other seven sheets can be pasted thereon) So, it will be advantageous for the
casting process. Also in this case of dyeing, as in the embodiment described above, it is needless
to say that a sufficiently large compliance can be obtained by increasing the number of bent
portions 3 'or by appropriately setting the shape thereof; Although the speaker vibration # is a
circle s shadow in the following embodiment, the present invention is not limited to this, and can
be made into a three-dimensional shape of specification. The present invention uses the (3) 4938-04 electric material obtained by dividing the stable material of 1 high molecular material
and ferroelectric material as mentioned above as bimorphcy F, and uses this A support structure
in which a bent portion is provided at the end of the speaker diaphragm on a speaker diaphragm
formed in a three-dimensional shape, and a flat portion extended from the bend is supported by a
support. Providing a sufficiently high compliance, without the need to use a separate material for
this, and by means of the loudspeaker diaphragm itself to solve this compliance and support
means so!
Have the following features.
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