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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 AtB shows a conventional piezoelectric element
and its movable piece mounting method, FIG. 1A is a front view, and FIG. 1B is a plan view. FIGS.
2A and 2B show a piezoelectric element according to the present invention and a method of
attaching a movable piece thereof, and FIG. 2A is a front view and FIG. 2B is a plan view. 1・・
. · · · Piezoelectric element, 2, 2 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · movable piece to transmit vibration to the piezoelectric element, A bonding member attached
to expand the area of the corner point of the piezoelectric element. ¥ 714, A) / 3) 72 / ¥) small,
β) -73
DETAILED DESCRIPTION OF THE INVENTION In the present invention, the area of the apex of a
Rochelle salt or barium titanate used for transducers for vibrating a microphone, etc. is enlarged
to prevent damage to the piezoelectric element, improve its characteristics, and stabilize its
mounting, It relates to the structure of the piezoelectric element whose measured volume has
been reduced. Referring to the drawings, FIG. 1 shows a method for attaching a piezoelectric
element according to the prior art, wherein u and u are pedestals for attaching the piezoelectric
element l to the container body K11, 3 is a movable piece for transmitting the piezoelectric
element / Kit motion, The stress action range of the chain ah piezoelectric element of the da is
shown. The ideal usage of the piezoelectric element is that stress is applied to the center end of
the corner, but the corner of the piezoelectric element has a small area near the tip and the area
is small and broken. Since the base and the movable piece of J are attached to the inner surface
of the corner O of the piezoelectric element as shown in FIG. 1, the stress acting area of the
piezoelectric element is reduced to reduce the efficiency of the piezoelectric element. - In order to
eliminate this kind of defect from the present invention, as shown in the first figure, a junction
member such as Kflm, metal, etc. is added as shown by 1 piezoelectric element io square tip 11mj
as shown in FIG. It is 4 of the enlarged. Because of this busy condition, the stress acting area l of
the piezoelectric element l can be increased, and the color of the dust-containing portion and the
movable piece of J can be stably fixed. As mentioned above, as a result of expanding the corner
point area of the piezoelectric element, the mechanical strength of the piezoelectric element is
increased, the electric shock is increased, the rigidity of the piezoelectric element is reduced, and
the space factor of the piezoelectric element is practically reduced. Since it can be tampered with,
it is possible to increase the strength of the transducer, reduce its size, and increase its