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JPS57122993

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPS57122993
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a recently
commercialized speaker, FIG. 2 is a half-sectional view of a conventional gasket, and FIG. 3 is a
half of a gasket in an embodiment of the speaker of the present invention. FIG. 4 is an exploded
sectional view of the gasket and the main part of the frame, FIG. 5 is a top view of the main part
of the frame, and FIG. 6 is a sectional view of the main part of the speaker. 1 · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · diaphragms , 9 .....
Edge 1.10 ..... ... Voice coil, 11 ..... Damper, 12 ..... Magnetic gap, 14 ..... 15 ..... Coupling hole.
DETAILED DESCRIPTION OF THE INVENTION In the present invention, the area of the rim of the
frame to which the edge of the diaphragm is attached is increased, and the gasket connected to
the rim of the frame is improved to improve the bonding strength of the gasket 7 It is an object
of the present invention to provide a reliable speaker by reliably fixing the diaphragm edge.
Recently, as a speaker system for incorporating the multi-way system as a speaker system, the
area of the adhesive part of the gasket and diaphragm edge of the frame peripheral portion is
shown to make it look like an aperture to balance with the aperture size of the low frequency
speaker Things that make it bigger have been developed and put to practical use. In addition,
such a configuration is effective not only for making the diameter of the aperture larger, but also
for the purpose of improving the adhesion strength to the baffle plate. A representative example
will be described with reference to FIG. A magnetic circuit 1 includes a plate 3 having a center
pole 2, a ring-shaped magnet 4, and a ring-shaped upper plate 6. A frame ebxM is combined with
such a magnetic path 1, and the horizontal peripheral portion 6 'of the frame 6 is configured to
have a large 而 0 553 product. An edge 9 of a diaphragm 8 is bonded to a peripheral portion d of
the frame 6 together with a ring-shaped gasket 7 made of a thin synthetic resin by bonding or
the like, and a voice coil 1o is coupled to the diaphragm 8. The lower part of the voice coil 1o fits
into the magnetic gap 12 of the magnetic circuit 1 without eccentricity, and the dust cap 13 is
attached to the central upper surface of the diaphragm 8 There is. In addition, although the thing
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of a cone type was shown as the imaging | photography moving plate 8 in the said example, it
can be set as the structure using a flat diaphragm. In such a speaker, conventionally, a thin
gasket 7 having a thickness formed by punching an AB'S resin or the like in a ring shape is used,
or this gasket 7 is formed thin in consideration of the radiation of the sound. As shown in FIG. 2,
in many cases both ends are curved upward, and it is sufficient to attach Eno 0564 D9 to frame 6
even if it is attached to the edge 6 'of frame 6 together It is not possible to firmly fix to the
peripheral portion 6 ', and there is a defect that the adhesion is peeled off at the time of the
operation of the speaker. The present invention eliminates the above-mentioned conventional
drawbacks. Hereinafter, an embodiment of the present invention will be described with reference
to FIGS.
The speaker in the present invention is basically the same as the configuration shown in FIG. 1,
and here, the configuration of the gasket door and the peripheral portion d of the frame 6 which
are the features of the present invention will be described. That is, the gasket 7 is formed in a
thin ring shape made of ABS resin, phenol resin, synthetic rubber or the like, and is slightly
curved in advance so that the inner and outer cylindrical rims project downward. It is done.
Moreover, in the width direction 1) of the lower surface of the gasket 7, several protrusions 14
are formed at a central portion so as to project downward, and the protrusions 14 have a small
diameter at the lower end 105 '/' 6. It is in the shape of an inverted truncated cone whose
diameter increases as it goes upward. The rim 6 'of the frame 6 corresponding to the projection
14 of the gasket 7 is provided with a star-shaped connecting hole 16 having several V-shaped
snap-in pieces on the inner periphery, and blowing of the connecting hole 15 The edge 9 of the
diaphragm 8 is arranged at the peripheral portion 6 'of the frame 60 of such a configuration,
which is formed so that the dimension between the pieces is equal to the diameter of the lower
end of the projection 14, and the position corresponding to the coupling hole 15 The projections
14 are positioned at the upper end of the gasket 14 and the projections 14 are pressed into the
coupling holes 15. When the gasket 7 is sufficiently pressed against the peripheral portion 6 'of
the frame 6, the projection 14 is pressed into the joint hole 16 to the root and the lead-in piece of
the joint hole 16 is fitted into the projection 14 and fixed. The curvature of 1b is corrected, and
the edge 9 is squeezed to the peripheral portion d of the frame 6 all over the lower surface of the
gasket 7. Incidentally, the peripheral portion 6 'of the frame 6 and the edge 9, the edge 9 and the
gasket 7 may be bonded using an adhesive, and if the bonding force between the projection 14
and the coupling hole 16 is large 058e, the adhesive is omitted. It can also be done. It is also one
method to provide a hole Y equal to the diameter of the lower end of the projection 14 at a
position corresponding to the coupling hole 16 of the edge 9. As described above, since the
speaker of the present invention is configured, the edge of the diaphragm is surely suppressed
and coupled to the peripheral portion of the frame even if a thin and large-sized gasket is used.
There is no generation of sound, and the bond strength becomes large, and the occurrence of the
upward bending as an edge can be prevented by the downward bending in advance, becoming
highly reliable, and of practical value. It is big.
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