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DESCRIPTION JPS5189435

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DESCRIPTION JPS5189435
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing one embodiment
of a loudspeaker box according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a
side view thereof, and FIG. 4 is a plan view thereof is there. 1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·. FIG. 1 -85 = Japanese Utility Model
Publication No. 51-89435 (2) FIG. 2 FIG. 3: 86 -
DETAILED DESCRIPTION OF THE PROBLEM The present invention relates to improvement of a
speakerphone. With the development of audio technology in recent years, the performance of the
record player, the telex deck, the tuner, the preamp, the main amp and the speaker has been
improved in a stepwise manner, and good quality music can be relatively easily made 114 L.
Also, many of these machine numbers are excellent for decoration and design. In the above
"inside O" 1441 there is a remarkable development with respect to a speaker box in recent years.
That is, what is called a speaker system and inside the speaker box is a speaker such as Uno ~, ス
ー ー -1 =,) cauca, tweeter etc installed and housed is popular in the ruffed market. Recently, the
above speaker box on the above mentioned speaker box sticks a material to be worn, called a
saran net for decoration, attached to the wooden frame so that the arrangement state of each
speaker can be seen from the outside, before docking iio 11m In response, the wooden frame is
removable. Since the wooden frame is removable 6, it is preferable that a metallic conservation
net be attached to the front face or a mouth portion of the speaker, as the cone clasp of the
speaker or the like may be damaged by the impact from the outside S. Therefore, However, this &
li net protrudes thickly on the front face of the baffle plate of the speaker box especially when it
is attached to the woofer speaker. For this reason, the thickness of the wooden frame also
increases according to the conservation non-conforming protrusion, so that the propagation of
the sound generated from the speaker to the 1ll part of the wooden frame is very poor. In other
words, although listening to the speaker box is perfect for listeners who listen to the speaker box,
I listen it, but II can not pick up noise for people convicted in the crate of the wooden box that I
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placed. Especially - it becomes disgusted as it becomes me and it becomes less as it becomes the
bass part. This invention eliminates the drawbacks mentioned above, it is possible to improve the
optimum listening range by improving the direction 41, and to provide a speaker box t which is
exclusive to the amulet and can provide a superior structure - to provide it It aims. In order to
achieve the above object, the present invention provides a speaker box body detachably provided
on a front portion of a speaker box main body, and a plurality of plate-like sound wave diffusion
passage devices As shown in FIG. An embodiment of the present invention will be described with
reference to one aspect below. 1 to 4 show an embodiment of a speaker box according to the
present invention. In the first shame to 4111, reference numeral 1 denotes a speaker box main
body, a front portion of the speaker box main body 1, that is, a baffle plate 2 Each speaker (not
shown sparrow) such as a woofer, a squawker, a tweeter, etc. is deposited.
Reference numeral 3 denotes a frame-like object which is detachably provided in front of the
speaker box main body 1, and to which anti-rotation and decorative 01 runnets are attached.
Both portions of this J-a-covering 3 are opened, and a plate-shaped member 5 bent into a
substantially U-shaped shape is inserted into this opening into a sound wave diffusion passage 6
a. @ B, @ e,... Are formed at predetermined intervals by a plurality of holding members 7. As
described above, the sound wave diffusion passage 6 a. sb + se @ · · Because it is fully installed, it
is propagated forward through the acoustic waved object 4 t - emitted from the speaker and
propagated diagonally forward through the sound wave diffusion path "+ 6 b + 56 @ e ·. For this
reason, since the range that can be heard as a strict sound is expanded to a large extent, the
directivity characteristics can be improved. In this embodiment, the listening range can be freely
varied by changing the directional characteristics of the passages 1ia, 6b, 6e,..., Φ. As described
above, according to the speaker box of the present invention, a plurality of plate-like acoustic
diffusing passages (not shown) are provided on the side of the frame member of the member to
be self-contained which is provided on the front side of the main body of the speaker box, As we
made it possible to do so, it is possible to expand the range -4-2 to big wheels by Kyoto raw it
good Kii scatter). According to this invention, the front part of the speaker box main body can be
made to have a decorative superior structure, such as excellent effect of harvest.
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