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JPS5353321

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DESCRIPTION JPS5353321
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of an
embodiment of the present invention. 2 to 4 are longitudinal sectional views of another
embodiment of the present invention. 1
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ииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии ?, 6 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 Speakers 7 'и и и и и
Speaker frame.
The present invention relates to a speaker cabinet for improving the characteristics of a speaker.
In the speaker attached to the speaker cabinet, the speaker 7 frame, which is a support of the
vibrating membrane, vibrates as a reaction of the vibration of the vibrating membrane that
generates a sound wave. Since the speaker is usually supported by fixing the speaker frame
piercing portion to the peripheral edge of the speaker opening of the panful plate, the vibration
of the speaker frame due to the reaction of the diaphragm vibration is propagated to the baffle
plate and further propagated to the side plate and back plate The vibration of the plate radiates a
vibrational wave into the air and adversely affects the sound wave from the vibrating membrane.
The present invention is a speaker cabinet intended to block the radiation of vibrational waves
from the outer surface of the cabinet. An embodiment of the invention will now be described with
reference to the drawings. According to the embodiment of the present invention, as shown in
cross section in FIG. 1, an inner box 2 having an opening 1 for a speaker, and a partially elastic
soft rubber such as rubber provided on the outer side of the inner box 2 The outer III body 6
with the speaker opening 5 is provided with the both openings 1 and 5 aligned with the outside
through the soundproofing material 3 and the sound absorbing material 4 such as guswool
provided on the outside @ other than the above part. The front portion of the speaker frame 7 'of
the speaker 7 is fixed to the periphery of the opening 1 of the inner box 2 to complete the
attachment of the speaker to the speaker cabinet of the present example. According to the
present invention, the vibration of the speaker frame 7 'as a reaction caused by the vibration
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1
m11lli (not shown in the figure) of the speaker 7 is transmitted to the inner box 2 and the inner
nuclear box 2 vibrates. The vibration damping member 3 made of a soft elastic body is prevented
from reaching the outer box 6 by solid transmission. Also, the air vibrational wave from the outer
surface of the inner box 2 is absorbed by the sound absorbing material 4 and the arrival of the
air on the inner surface of the outer box 6 is blocked. Accordingly, since the resonance of the
cabinet outer box 6 is blocked, the sound wave from the diaphragm of the speaker 7 is often
subjected to an adverse effect due to the resonance of the cabinet outer box 6. In addition, in FIG.
2 to FIG. 4 showing another embodiment of the present invention, FIG. 2 shows the anti-vibration
material 3 made of a soft elastic material between the inner box 2 and the outer box 6 4jJ. It is an
integral part through part. The third problem is that the vibration insulating material 3 made of a
soft elastic material is provided between the inner box 2 and the outer box 6 without a gap to be
integrated. FIG. 4 is an illustration in which the front of the speaker is attached without being
dented in order to prevent a change in directivity and the like due to the denting and attaching
the speaker.
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