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JPS55155187

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DESCRIPTION JPS55155187
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a half sectional front view showing a
conventional speaker, FIG. 2 is a top view thereof, and FIG. 3 is a half sectional front view
showing one embodiment of the speaker of the present invention, The figure is the top view. 13
ииииии Magnetic circuit, 18 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и ......
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker which is
designed to resist peeling of a gasket due to an external force applied during transportation or
assembly. As a conventional speaker, it was comprised so that it might be shown to-, FIG. 1, FIG.
That is, the frame 6 is coupled to the magnetic circuit 5 constituted by the plate 2 having the
center pole, / ? (ииии 0 ? ? / 2 ring magnet 3, and the ring plate top plate 4 as well). The
peripheral portion of the diaphragm 8 is bonded to the peripheral portion of the diaphragm 8
together with the gasket 7 with an adhesive, the voice coil 9 is connected to the central portion
of the diaphragm 8 and the intermediate portion of the voice coil 9 is held by the damper 10 The
lower portion of the voice coil 9 is fitted into the magnetic gap 11 of the magnetic circuit 5
without eccentricity, and the dust cap 12 is attached to the central upper surface of the
diaphragm 8. Further, several of the force skeletons 7 are incorporated into the peripheral
portion of the frame 6 so as to substantially form a ring, and the rising portions 6 a of the
peripheral portion of the frame 6 are provided with the gasket 7. The height is lower. When the
speaker is transported in such a configuration or incorporated into an acoustic device, when an
external force is applied to the end of the individual piece of the gasket 7-when the bond is
broken and operated It was supposed to generate an 'abnormal' sound such as a cliche. (3) In
particular, since the ends of the individual pieces of the gasket 7 are disposed with an adjacent
piece end and a gap G, the external object is easily caught and susceptible to an external force. It
was easy to wake up. The present invention eliminates the above-mentioned conventional
drawbacks. Hereinafter, an embodiment of the present invention will be described with reference
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to FIG. 3 and FIG. In FIGS. 3 and 4, reference numeral 13 denotes a magnetic circuit, and the
magnetic circuit 13 is composed of a plate 15 having a center pole 14, a ring-shaped magnet 16,
and a ring-shaped upper plate 17. A frame 18 is coupled to the magnetic circuit 13, and an
upward rising portion 19 is provided at the peripheral portion of the frame 18. Furthermore, an
upward projecting piece 2o is provided at several places of the rising portion 19. ing. The
peripheral portion of the frame 18 is joined with an adhesive at the peripheral portion of the
circular plate-shaped gasket 21 and the diaphragm 4 of the cone 4 shape. The end of each piece
of the gasket 21 is located within the width of the projecting piece 20 of the rising portion 19 of
the frame 18, and the gap G between the pieces is covered with the projecting piece 2o.
The height of the projecting piece 2Q is formed to be approximately equal to or slightly lower
than the height of the gasket 21. The voice coil 23 is coupled to the central portion of the
diaphragm 220, the middle portion of the voice coil 23 is held by the damper 24, and the lower
portion of the voice coil 23 is fitted into the magnetic gap 25 of the magnetic circuit 13 without
eccentricity. There is. Further, a dust cap 26 is attached to the upper surface of the central
portion of the diaphragm 22. With such a configuration, the end of each piece of the gasket 21 is
covered by the projecting piece 2 o provided on the rising portion 19 of the frame 18, and
during transportation or assembly into an acoustic device, An external object hits or pulls on the
end of the piece to apply an external force, and the gasket 21 is peeled off, making the fixing of
the peripheral portion of the diaphragm 22 unstable and generating a clinch at the time of
operation. Can be completely prevented. As described above, since the speaker according to the
present invention is configured, the end of the individual piece of the gasket is covered with the
projecting piece provided on the rising portion of the frame, so that external force is not applied
and it is not peeled off. Since the protruding piece serves as a position guide when the gasket is
incorporated, the productivity can be improved, and the value of the apparatus is increased.
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