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DESCRIPTION JPS50103629

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DESCRIPTION JPS50103629
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an x-peaci cabinet, FIG. 2
is an exploded view thereof, FIG. 3 is a longitudinal sectional side view showing an embodiment
of the present invention, FIG. 4 is an example of an elastic body FIG. 5A is a three-dimensional
graph showing the acceleration amplitude of each part of the front plate and the rear plate, FIG. B
is a three-dimensional graph showing the acceleration amplitude of each part of the top plate,
both side plates and the ground plate, Is a graph showing the measurement result of the
vibration propagation amount to the side plate. E back plate, s ... Kamiki. Fig. 2 Fig. 3 Fig. - 61 - ~
Henri Actual Show 50 - 1 '0 3629 (3) Figure 6 2050? 0020050010002000 ■ pLL (Hz) φ 1 63
-
DETAILED DESCRIPTION OF THE PROBLEM The present invention relates to improvement of a
speaker cabinet, and aims to improve sound quality by suppressing vibration of a cabinet. FIG. 1
shows a speaker cabinet, and FIG. 2 shows an exploded view thereof. 1 is a radish, 2, 2 'are side
plates, 3 is a rear plate, 4 is a base plate, and 5 is a front plate. In the conventional speaker
cabinet, since the respective plates were directly set to each other directly, the vibration #jJ of
each plate communicated with each other, especially the vibration at the low tone is serious, It
was superimposed with bamboo, causing so-called intermodulation, which had the disadvantage
that clear (1)] + 3 declined. Fig. 15 (K shows the results of measuring the acceleration amplitude
of each part of the front plate 5 and the rear plate 3, contradiction 51 (B) shows the acceleration
amplitude of each part of the top plate 1, the base plate 4, the side & 2 + 2 ' It shows the
measurement result. As is clear from this measurement result, the front plate 5 and the back
plate 3 are more vibrated than the other top board 1, the ground & 4 and the side plates 2, 2 '. In
view of this point, the present invention focuses on this point, separates the vibrating front plate
5 and the rear plate 3 from other persons 1.1 d] 1 provisional 2, 2 'and the main plate 4 so that
vibration of the entire speaker cabinet , And FIG. 3 shows the embodiment thereof. That is, the
top plate 1, the side plates 2, 2 ', and the base plate 4 are directly fixed in a conventional manner.
18-10-2018
1
7 is a corner tree bonded to each of the front plate 5 and the rear plate 3 in order to fix the front
plate 5 and the back plate 3 to the other top plate 1, the side plates 2, 2 'and the base plate 4 this corner 7 is the front plate 5 In the present invention, an elastic body 6 such as rubber is
interposed between the corner 7 and the front plate 5 or (2) -) rear plate 3, . When configured as
described above, the imaging energy of the front plate and rear plate 3 is absorbed by the elastic
body 6, and the other top plates 1. * 1 The shooting motion transmitted to the IF 2, 2 and the
ground plane 4 decreases. 3 - 4 (1 is an example of gold of the elastic body 6, 8 is a groove cut in
the elastic body 6, 1, which is provided at random in the hammerhead, 1, When the compliance
is C and the trade% is M, it is represented by its natural frequency fl '1 f = 2 □ 5 □. However,
when the elastic body 6 is sectioned by the groove 8 as described above, the elastic body 6 is
divided into the front plate 5 Alternatively, since it comes into contact with the rear plate 3 with
a random area, it is possible to widen the frequency width at which the interworking wave
number is rounded and rounded. Figure 16 shows the results of comparing the conventional 7 ''
(') & t 7) l!
lQi "- tD * ljh @ NttD measurement 112", the solid line is the conventional one, the dashed line c
shows the acceleration amplitude of the side roots at each frequency of the implementation of
this invention. If this figure is made obvious (3) Ka, if you devise the idea, the vibration of 1 dolly
board decreases. As mentioned above, since the front board and the back board are shown
through the elastic body to the radish, both sides, and the ground plate, the O consideration
straddles the front plate and after the violent shooting The energy of the shooting motion
propagated from the plate to the other plates is absorbed by the elastic body and the shooting
motion as a whole of the speaker cabinet is reduced. As a result, the intermodulation due to the
shooting of the speaker cabinet decreases, and the low Clarity in the sound range improves.
18-10-2018
2
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