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JPS5356819

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DESCRIPTION JPS5356819
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an embodiment of the
present invention. FIG. 2 is a longitudinal sectional view of the embodiment of the present
invention shown in FIG. 1 ...... speaker mount, 2 ...... screws, 3 ...... backing plate, 4 ...... opening, 5
...... annular vibration-proof material , 6 · · · · · · · Baffle plate · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · magnetic circuit Parts, 10 ····································· Speaker frame.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a loudspeaker
system for improving the characteristics of a bass loudspeaker (hereinafter referred to simply as
a loudspeaker). ! In the speaker attached to the speaker cabinet on page 2-3-1-7, the speaker
frame, which is a support of the diaphragm, vibrates as a reaction of the vibration of the imaging
plate that generates sound waves. The vibration of the speaker frame is transmitted to a panful
plate which is a support of the speaker, and the vibration wave from the baffle plate adversely
affects the sound wave from the diaphragm. The present invention is a speaker device for the
purpose of preventing transmission of vibration of a speaker frame to a panfull board. An
embodiment of the invention will now be described with reference to the drawings. In the
embodiment of the present invention, in FIG. 1 showing the appearance and FIG. 2 showing the
cross section, the back plate 3 in which the speaker mount 1 is fixed with the screw 2 inside, the
opening 4 for the speaker forehead and A baffle plate 6 having an annular vibration-proof
material 5 made of a soft elastic material such as rubber on the periphery of the opening 4 and a
vibration-proof material 7 made of a soft elastic material made of rubber shredded to constitute a
cabinet. The back of the magnetic circuit M9 of the speaker 8 is placed on the back of the
speaker 8 and fixed with a screw 10, and the front portion of the speaker frame 11 is in contact
with the annular vibration isolator 5 which is 3 negative provided at the periphery of the opening
40. According to the embodiment of the present invention, since the speaker circuit 9 of the
speaker 8 is fixed to the back plate 3 via the speaker mount 1, the speaker frame 11 as a
reaction by the vibration of the diaphragm 8 '. The vibration is transmitted to the heavy back
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plate 3 and consumes most of the vibration energy to be attenuated, and the vibration of the
back & 3 is prevented from being transmitted to the baffle plate 6 by the anti-vibration material
7. Also, between the front portion of the speaker frame II and the peripheral edge of the opening
4 of the baffle plate 6 are connected without gaps by the annular vibration-proof material 5, but
the baffle plate 6 and the speaker frame 11 have a relationship between a support and a support
Rather, due to the extremely flexible connection by the soft 5% body, the transmission of the
vibration of the speaker frame 11 to the baffle plate via the vibration-proof material 5 is
prevented. Therefore, since the transmission of the vibration from the speaker frame 11 to the
baffle plate 6 is blocked, the sound wave from the speaker vibration & 8 'is not subject to the bad
effect due to the resonance of the baffle plate 6. The fixing of the speaker to the cabinet 4 page
plate other than the baffle plate may be not only the magnetic circuit portion but also the
speaker frame or the speaker frame and the magnetic circuit portion.
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