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DESCRIPTION JPS54113535

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DESCRIPTION JPS54113535
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a conventional speaker box,
FIG. 2 is a sectional view taken along the line AA in FIG. 1, FIG. 3 is a sectional view showing
another conventional duct, , And FIG. 5 is a cross-sectional view showing the net sticking state of
the duct portion according to the present invention. 1 ... speaker box, 6 ... duct, 8 ° 9 ... net, 10 ...
opening hole section.
DETAILED DESCRIPTION OF THE PROBLEM The present invention relates to an improvement of
a duct part used for a speaker box of a bass reflex or dumbbath reflex structure. Speaker boxes of
general Nivasref or Dumbbass reflex structure are constructed as shown in Fig. 1 and Fig. 2. In
Figure 1, 1 is a speaker box, 2 is a baffle board, 3 Â ° 4.5 is a speaker for high, medium and low
sound, the duct part c is the proper aperture and length by the self-answer product etc. of the
used speaker and cabinet Are required, and as shown in Fig. 2, PVC fissure or paper made -> F
soe 1 ψ 1 pipe duct 6 is often used. Moreover, in the duct part, in many cases, the next
dustproof nail 8 is attached as dressing by the saranne soup garnet gauze wire netting, the
punching metal etc., in many cases. In this case, since it requires the decorating ring 7, it
becomes expensive, and as shown in Fig. 5, it is possible to directly attach the dustproof natto the
duct, so that there are many cases to use the paper duct duct y. The netate stuck on the bass
reflex duct is unlikely to stick to the height which is the flowing part of the air, and the nat itself
is digged to generate a tingling noise, but it is extremely difficult to fix nat to the front part of the
tubular duct without slack It was a bad work. The present invention is a book which obtains a
bass reflex duct for a speaker box which solves such a drawback and can easily paste a net.
Hereinafter, the path reflex duct for the speaker cabinet according to the present invention will
be described with reference to FIG. 1 and FIG. Explain by examples. FIG. 4 and FIG. 5 are cross
sectional views of the bass reflex duct part, in which the full board 2 is provided with an opening
10 into which a cylindrical tact 6 is inserted, and is provided with a duct 6 are press-fitted. As
shown in FIG. 5, on the back surface of the parfurf plate 2, a nest 9 having stretchability wrapped
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with a synthetic fiber etc. is affixed with surplus around the opening 1 fl 10, and the duct 6 is
attached from the front face of the parflur plate 2 Fitted in the opening 10. As the duct 6 enters
the inside of the speaker box, the duct 60 tip 1111 extends the nat 9. Then, when the duct 6 is
completely inserted, the nut 9 is tensioned so as to cover the opening of the tact 6 at the tip of
the duct 6. As described above, according to the present invention, the duct can be mounted on a
flat plate-shaped plate. Installation work becomes easy, and you can easily paste nets onto the
duct 0
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