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JPS5353322

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DESCRIPTION JPS5353322
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of an
embodiment of the present invention. FIG. 2 apb is a partial cross-sectional view of another
bonding example of the special plate used in the present invention. 1.2 · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · speaker '... Speaker frame.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speaker cabinet
for improving the characteristics of the speaker. In a speaker attached to a speaker cabinet, a
speaker frame, which is a support of the vibrating membrane, vibrates as a reaction to the
vibration of the vibrating membrane that generates sound waves. Since the speaker is usually
supported by fixing the front portion of the speaker frame to the peripheral edge of the opening
for the speaker of the baffle plate, a false upper signal due to the reaction of the vibrating
membrane vibration? The vibration of the λG2 jl peaker frame propagates to the baffle plate
and further to the side plate and the Ik plate, and the vibration of these plates radiates a
vibrational wave into the air and does not affect the sound wave from the moving film. . 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. In the embodiment of the present invention, as shown in FIG. 1 in
cross section, a vibration insulating material made of a soft elastic material such as rubber is
used as a core material 3 between two sheets 1.2 of a board material for cabinets such as Lauan
plywood, particle board etc. Core members 3 made of the above-mentioned soft elastic body are
brought into contact with each other without causing a K shift to form a speaker cabinet having a
speaker opening 5. The front portion of the speaker frame 6 'is fixed to complete the mounting of
the speaker 60 to the speaker cabinet of the present invention. According to the present
invention, the vibration of the diaphragm 6 (not shown in the figure) of the speaker 6 vibrates
and the vibration of the single frame 6 'as a reaction by K is transmitted to the inner plate 2 of
the special plate 4 Although 2 vibrates, it is prevented that a rattan vibration is absorbed by the
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core material 3 which consists of a vibration-proof material of a soft elastic body, and arrives at
the side plate 1. Therefore, the sound wave from the diaphragm of the speaker 6 is not adversely
affected by the radiation of the vibration wave from the outer surface of the cabinet because the
resonance of the cabinet outer plate 1 is prevented. 2 (a) and 2 (b) are partial cross-sectional
views showing another bonding embodiment of the special plate 4 used in the present invention.
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