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JPS63121399

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DESCRIPTION JPS63121399
[0001]
FIELD OF THE INVENTION The present invention relates to a coaxial speaker unit having an
improved assembly method. Prior Art FIG. 2 is a half sectional view of a conventional coaxial
speaker unit, in which 1 is a tweeter diaphragm, 2 is a tweeter frame for holding a scraping
portion, and 3 is a tweeter magnet. Reference numeral 4 denotes a tweeter yoke provided in
contact with one end surface of the magnet a which is to be a magnetic pole. Reference numeral
6 denotes a fixed frame for fixing the tweeter, which is bonded to the half-range yoke 9. The
reference numeral 13 is a Mitsudrange diaphragm, 6 is a mint range frame, and 7 is a
Mitsudrange magnet. A first frame 1Q is a fixed frame for fixing the Mitsudore, which is bonded
to the woofer yoke 11. 12 is a worker magnet, 14 is a woofer diaphragm, and 16 Ifi woofer
frame. The reference numeral 8 denotes a screw for fastening the tweeter yoke 4 and the middle
range yoke 9, and the reference numeral 16 denotes a screw for fastening the miso joke 9 and
the middle range fixing frame 1o. The assembly method of the conventional coaxial speaker unit
configured as described above will be described below. First, the main body and the tweeter main
body are fastened with the tweeter fastening screw 8. Next, the above-mentioned main body
equipped with a tweeter is attached to the woofer main body, and this is fastened with the min-V
range fastening screw 16. Problems to be solved by the invention However, according to the
configuration as described above, since several minodrange fastening screws 1θ are used, it is
difficult to align the tap position of the midrange with the screw hole of the midrange fixing
frame. In conjunction with the tightening of the cause of the increase in man-hours. In addition,
the material cost has risen because it is necessary to cut several taps in the Mitsudorizen yoke.
SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention
is to provide a coaxial speaker unit f which can reduce the number of steps and the material cost.
Means for Solving the Problems In order to solve the above problems, the coaxial speaker unit of
the present invention is mounted on a frame for fixing a midrange attached to a woofer field, a
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1
field for a midrange range, and a field for a radrange field. In this tweeter fixing frame, the
tweeter and the middle range are fastened together to the middle range fixing frame with one
screw passing through. In the operation described above, the screw fastener for fastening the
thermostat is abolished, and the screw hole for fastening the yoke of the midrange lever is also
eliminated, thereby reducing the number of assembling steps of the unit.
Embodiment 1 FIG. 1 is a half cross-sectional view of a coaxial speaker unit according to an
embodiment of the present invention. In FIG. Numeral 9 is a mini drain joke and there is no
screw hole for fastening it to the stationary frame fixing frame 1o. Reference numeral 8 denotes
a mitt range, a tweeter fastening screw, and the like, which is fastened from the midd range fixing
frame 1o to the tweeter yoke 4. The assembly method of the coaxial speaker unit configured as
described above will be described below. The MITOH range main body and the MIT range main
body are fitted with the tweeter main body, and the od end range and the tweeter fastening
screw 8 are fastened together to the middle range fixed frame 1o. As described above, according
to the present embodiment, the screw for fastening the pedal range yoke 9 and the mid range
fixing frame 10 is eliminated as compared to the conventional case where the tweeter body and
the mid range are fastened and the mid range and the woofer body are fastened. At the same
time, the assembly process and the material cost can be significantly reduced since the so-and-towoofer are fastened together with one screw. Effects of the Invention As described above, the
present invention eliminates the screw for fastening the midrange yoke and the midrange fixing
frame by co-fastening the tweeter and the midrange with the one frame with the single half. Can
significantly reduce the number of assembly steps and material costs. (2) The screw holes of the
mini drain joke provided for fastening the miso drain joke and the mid range fixing frame can be
abolished, the material cost can be reduced, the screw holes of the mid range, and the screw
holes of the mid range fixing frame It is not necessary to perform alignment to match with V. It is
possible to significantly reduce the number of assembling steps. Excellent effects such as
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a half sectional view showing a coaxial speaker unit according to an embodiment of the
present invention, and FIG. 2 is a half sectional view of a conventional coaxial speaker unit.
4 ...... tweeter York, 5 ... river-tweeter fixed frame, 8 ...... Mitsudorenji, tweeter fastening screw, 9
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2
..... pet de range yoke, 10 ... India and Mitsudorenji fixed frame , 11 · · · · · · · · · · ·.
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3
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