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JPS6115499

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DESCRIPTION JPS6115499
[0001]
BACKGROUND OF THE INVENTION The present invention relates to a speaker device. The
structure of the prior art 7 and its problems In recent years, urethane edges have come to be
widely used for Hi-Fi speakers, particularly for woofer. A conventional speaker device will be
described below. FIG. 1 is a half sectional view of the conventional speaker device, 1 is an edge, 2
is an arrow, 3 is a sealing pad, 4 is a cabinet, 5 is a frame, 6 is a diaphragm, 7 is a coupling cone,
8 is Is a voice coil, 9 is a field section, and 10 is a damper. The operation of the loudspeaker
apparatus configured as described above will be described below. This sneaker applies an electric
current to the voice coil 8 stored in the magnetic field unit 9 and transmits the force generated
there to the diaphragm 6 via the coupling cone 7 to make a sound. However, in the abovedescribed conventional configuration, it is necessary to insert the sealing pad 3 so that air
leakage does not occur from the gap when the frame 5 is attached to the cabinet 4, the number
of parts increases, and the assembly man-hour is also amplified. It had the problem of. The object
of the present invention is to solve the above-mentioned conventional problems, and it is an
object of the present invention to provide a speaker device which does not cause air leakage even
if there is no sealing patch. The present invention is a speaker device having a urethane edge
whose thickness of a non-moving part is thicker than that of other parts, and a part of the cabinet
is in close contact with the thick part of this edge. Because of the thickened edge, the sealing pad
can be omitted. Description of the embodiment Fig. 2 shows a half sectional view of a speaker
device according to an embodiment of the present invention. In FIG. 2, 1 is an edge integrally
formed of a foam material, 2 is an arrow, 4 is a cabinet, 6 is a frame, 6 is a diaphragm, 7 is a
coupling cone, 8 is a voice coil, and 9 is a field. Part 10 is a damper. As described above,
according to the present embodiment, by thickening the portion 1b fixed to the frame 5 on the
outer periphery of the edge 1, the portion 1b serves as a sealing patch between the cabinet 4 and
the frame 50. Can prevent air leakage. As a result, there is no need for the sealing pad 3 used
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conventionally, the number of parts is reduced, and the number of assembling steps is also
reduced. Thickening the portion 1b fixed to the frame 5 at the outer periphery of the edge 1 can
be realized without increasing the cost of the mold, and it is very economical without leading to
the cost increase of the edge 1.
According to the present invention, since the thickness of the non-moving part of the foam
material is made thicker than that of the other part, the edge also has the role of a sealing pad
between the cabinet and the frame. The sealing pad can be eliminated, and the number of parts
of the speaker device can be reduced to reduce the number of setup steps. Moreover, by
thickening the non-moving part of the edge, the manufacturing cost of the edge itself does not
increase.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a half sectional view of a conventional speaker apparatus, and FIG. 2 is a half sectional
view of a speaker apparatus according to an embodiment of the present invention.
1 · · · · · · · · · · · · · · · · · · · · · · · · · · パ Patzkin for sealing, 4 · · · Cabinets, 5 · · · · · · · · · · · · · · · · · · · · ...
Diaphragm 7,. Name of Agent Attorney Nakao Toshio Other 1 person Figure 1 Figure 2
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