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JPS55142082

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DESCRIPTION JPS55142082
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional coaxial
speaker, FIG. 2 is a cross-sectional view of a coaxial speaker according to an embodiment of the
present invention, and FIG. 3 is another embodiment of the present invention. It is a sectional
view showing an example. In the drawing, 1 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 Woofer
frame, 10 и и и и и и inner frame 11 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
ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии
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 plate ... 20 ... ... frame. In the drawings, the same reference
numerals indicate the same or corresponding parts.
[Detailed Description of the Invention] The present invention has a speaker structure
incorporating a speaker (hereinafter referred to as tweeter) for reproducing another high
frequency band at the center of a speaker (hereinafter referred to as a woofer) for reproducing a
low frequency band. It is about Conventionally, there is a coaxial speaker having a structure in
which a tweeter (1) ? / ?] ? ? ? ? is incorporated at the center of a woofer having a ringshaped diaphragm. An example of this type of speaker is 1 is shown. Fig. 1 is a cross-sectional
view of the speaker, in which (1) is a yoke, (2) is a magnet, and (a magnetic circuit of a part of the
louver is adhered by adhering and bonding these three components together with a sla plate. The
woofer frame (4) is fixed to this. And a diaphragm (5) 1 spider (6) and a voice coil (7) are
adhered to this by adhesion, and a woofer is completed. (8) is an outer edge for supporting the
diaphragm, and (9) is an inner edge. @ Addiction is an inner frame that doubles as a mount for
fixing the inner edge (9) and for identifying the tweeter as a woofer, and is screwed on the plate
(3) . on the other hand. A part of the tweeter is a Qll pole piece, a magnet of (2), and a plate ofform a magnetic circuit like a part of a woofer, to which a tweeter frame a is fixed by screwing.
And a diaphragm, a voice coil (2), a spider (2) to this. The vibrating yarn of the dust cap (4) is
fixed by an adhesive. A part of the tweeter is fixed to the inner frame by a mounting screw. As
described above, in the conventional coaxial speaker, the structure is complicated and the
02-05-2019
1
assembling operation is very complicated. Another problem with the prior art is that the
mounting screw () is visible from the outside and that there is a gap between the inner frame
weir and the tweeter frame a-making it unsightly in appearance. In this regard, in the recent
audio market, the appearance beauty of the speaker is strongly demanded, and the weight of the
design element in the commercial value tends to increase. An object of the present invention is to
provide a speaker excellent in economy by reducing the number of parts constituting the speaker
by integrating the inner frame axis and the tweeter frame in the above description. One
embodiment of the present invention is shown in FIG. 2. In FIG. 2, the inner frame axis and the
tweeter frame rod in the conventional speaker are integral (3) 'frame structure in the frame- It is
fixed to the upper surface of the plate (3).
A diaphragm (part of the tweeter) is fixed to the inner periphery of the frame, and an inner edge
(9) is fixed to the outer periphery by adhesion. As described above, according to the present
invention, the structure is simplified, and not only the economic advantage ?, but also the design
problem which has been a problem in the prior art, ie, the elimination of the mounting screws
There is no boundary (gap) between the inner frame a and the tweeter frame I, and the product
becomes beautiful and fC, and its commercial value can be greatly enhanced. In the above
embodiment, the magnetic circuit of a part of the tweeter is fixed to the bottom surface of the
rear face of 7 rem on the upper surface of the plate, but as shown in FIG. It may be fixed to the
bottom. In the embodiment, the case where the tweeter is partially a cone-shaped speaker has
been described. However, the present invention can be similarly applied to flat-plate, domeshaped or horn-shaped speakers, and the same effect can be obtained. ? (4) Knee: As described
above, according to the present invention, it is possible to provide a coaxial speaker which is
inexpensive and has a good appearance and a high value for goods.
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