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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing an embodiment
of the present invention, and FIG. 2 is a back view showing a back cover removed. DESCRIPTION
OF SYMBOLS 1 ... Body, 2 ... Buzzer unit, 3 ... IJ, 4 ... Battery cover, 5 ... Disk-like frame, 6 ...
Vibratory plate 1.7: .. Piezoelectric element , 8 ... annular groove, 9, 16 ... rim, 10.18 ... 0 ring, 11
... fixing ring, 13 ... patkin, 14 ... foot, 15, 20 ...・ Sound emission opening, 21.22 ... opening.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a buzzer of a
watch with an alum. In the buzzer in which the piezoelectric element is fixed to the diaphragm,
the outside of the diaphragm communicates with the outside through the sound release port, the
diaphragm is watertightly fixed, and the diaphragm is prevented from squeezing in the paddy
field. Because the reinforcing plate is sunk close to the inside of the case, the number of parts is
large and it takes time to assemble and replace the buzzer. The present invention is intended to
solve such a problem (1) // Z3 noise, and is characterized in that the diaphragm and the
reinforcing plate are integrated. This will be described below with reference to the drawings. In
the figure, 1 is the base of the watch case, and on the back side of the buzzer unit 2, the back
cover 3 and the battery cover 4 are mounted on the back side, respectively. 5 and a diaphragm 6,
and the back side 11 of the diaphragm is fixed to the piezoelectric element 7. The frame 5 has an
annular groove 8 and a flange 9 at the outer periphery, and the lingo 10 is fitted in the annular
groove, and the rim 6 of the diaphragm 6 is fixed by caulking the flange 9 by caulking. Huser
equipment is integrated. The frame 5 is provided with four communication holes 12 for
connecting the electric circuit in the main body and the piezoelectric element 7 in a dry manner!
It is being cut. The frame 5 can prevent the diaphragm (when it is assembled) from being
touched by the hand, and can prevent the diaphragm from being bent by the water pressure of
the water that has entered the moon. The buzzer unit 2 thus formed into a unit is 1-to-1 and this
unit is press-fitted and fixed to 1011 yen of the cylinder 1 by turning the pancake / 13. The (2)
buzzer unit is fixed in proximity to a pair of feet 14 for connecting-one of the bunts, and between
the feet 14 inside and outside at a position where they are not blocked by the arm K when
carrying. The communicating sound emission port 15 is formed by a notch. The back cover 3 is
fitted and fixed to the back of the body so as to close the open side-side of the sound emission
port 15. Although the back cover 3 is fitted to the barrel by the projecting edge 16, the
projecting edge 20 is provided with a notch at a position corresponding to the output port 15
also at the projecting edge. The battery case 4 and the back cover 16 are provided with openings
21.22 for accommodating batteries, respectively. It is screwed in and fixed, and at the same time
the back cover is also constant at the torso. As described above, according to the present
invention, according to the present invention, the diaphragm of the hood is fixed to the frame,
and the frame also serves as a reinforcing plate. As a result, the assembly and replacement work
can be extremely simplified.