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JPS5051573

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complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPS5051573
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of an embodiment of the present
invention, and FIG. 2 is a diagram for explaining the operation of the present invention. C
elements, 4 ...... flexible elastic body, 5 ...... pressure plate. 図 t-183-real open 50-51 573 (2) li 7ha stii spz 2 times-184 =
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the improvement
of a vibrator for a multistage air-to-air conversion device such as a pino-no-anocar carie, a
microphone. Heretofore, since the vibrator in the related art is configured by bonding a pair of
vibrators with an adhesive, manufacturing and assembly become complicated, and man-hours
and costs are unnecessarily necessitated. SUMMARY OF THE INVENTION In view of the abovementioned drawbacks, the present invention provides a non-adhesive bimorph oscillator which
does not require bonding of a pair of oscillators. The embodiment of the present invention will be
described below with reference to the drawings. In FIG. 1, 1 is a support made of an insulator, 2
is a bending piece made of a conductive metal or the like, one end is fixed to the support, and the
other end is bent up and down freely. A pressure sensitive element 3 made of a piezoelectric
ceramic or a semiconductor is provided at an intermediate portion of the bending piece 2, and a
flexible elastic body 4 such as rubber, sponge or the like is provided on the upper portion
thereof. Reference numeral 5 denotes a pressure contact plate made of a rigid body for pressing
the flexible elastic body 4 and the pressure sensitive element 3 with an appropriate force. A pair
of bolts 6 are provided at both ends of the pressure-contact plate 5 so as to prevent the pressuresensitive element 3 from falling off and follow the movement of the bending piece 2. . As a means
for press-contacting the pressure-contact plate 5, any appropriate method can be adopted.
Electrodes 8 are provided on both sides of the two pressure-sensitive elements 3. The operation
will be described as follows: The pressing strength at which the pressure-sensitive element is in
pressure contact with the pressure contact plate is gradually increased. 鰺) It is possible to
sufficiently follow and reproduce the gentle movement of the bending piece. The figure which
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showed this is FIG. Line A is when the pressure contact force is small, and line H is when the
pressure contact force is sufficiently increased. This is the relative displacement at the contact
interface between the pressure sensitive element and the flexible elastic body. This is because as
the pressing force increases, the driving force is effectively transmitted. Therefore, application to
something like Pinocano pucker is also effective because it can be used for a wide range of
frequencies, and so on. ○ As mentioned above, since the present invention does not need to be
bonded, manufacturing and assembly are easy It contributes to the reduction of man-hours, and
the impact resistance is also enhanced, and the mechanical strength is improved. Furthermore,
since the pressure-sensitive element is uniformly in pressure contact with a flexible elastic body,
in the micro-vibration region, the same effect as bonding the pressure-sensitive element to a
bending piece can be expected. It is large.
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