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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of the
construction of an acoustic device according to the present invention, FIG. 2, FIG. 3 and FIG. 4 are
enlarged views of essential parts of the device, and FIG. FIG. 6 is a perspective view showing
another configuration example of the speaker grille of the □ device, and FIG. 1 is a crosssectional view showing another configuration example of the sound device of the present
invention. 1 ...... acoustic apparatus body, 2 ...... speakers, 3 ...... speaker grill, 4 ...... air holes
(Hokoeana), 5 ..... · crosspieces 5a ...... pivot shaft, 9 ... ... speaker grill -10 ...... mounting rail, 12 ......
rotating shaft.
The present invention relates to an audio device such as a LAN receiver, a tape recorder, a stereo
device, etc., and its purpose is to change the angle of discharge from a speaker attached to the
rear of the speaker grille, [1. In order to be able to listen to the infiltration sound according to the
loser's whistles 1 darkness: in the following, together with the drawings of the present
invention's audio device] with the drawings of j. im, 1 to +; + 2 °, □ 3 o, / 1 /-"84 □
construction. One groove example of the 鷹 10 sound device is shown, in the figure, 1 is a
portable device uR-4e) an acoustic device body which is a radio receiver of Q2 type, 2 is a
speaker built in the acoustic device body 1 Reference numeral 3 denotes a speaker panel in
which the front two speakers 2 are attached to the boss 6 with a mounting bracket 7 and a screw
8. Reference numeral 9 denotes a pivotable speaker grill configured on a part of the speaker
panel 3. Here, the speaker panel 3 and the speaker grille 9 also serve as a cabinet of a sound
device. In this speaker grille 9, as shown in FIG. 4 and FIG. 4, a plurality of rods 5 are arranged in
parallel with each other so as to have a horizontal streak structure, and mounting is provided on
the rotary shaft 5a and all the speaker holes 3. It is rotatably supported in the hole 11 of the
structure 10, and the air hole (speech hole) 4 is formed between the ridges 50 thereof. And each
crucible 6 which comprises the speaker grille 9 can be rotated in the illustrated arrow entering
direction centering | focusing on the rotating shaft 6a. In this further 4-1, now, as shown in 21st
m, each weir 5 which constitutes the speaker grille 9 is a horizontal plane, , The sound of the
speaker attached to the speaker panel 4 ′ and placed behind the speaker grille 9 through the air
hole 4 when the speaker is mounted on the speaker panel 4 ′. Reach the front A part. Here,
among the sounds reproduced by the speaker 2, the high frequency sound does not reach other
than the part A surrounded by the line segments a-a 'and b-h in FIG. If you listen outside, you can
hear the missing high-pitched sound. When listening to the portable audio device at the top of
the shelf and listening to it, if the listener's ear is out of the A section, it will be inconvenient to
hear the high-frequency sound missing. Therefore, in this case, as shown in FIG. S, various kinds
of parts 5 constituting the speaker grille 9 are pivoted downward, and wrapped by the line
segments aa 'and bb' in FIG. 'Set the part to be below the ARB. In this way, the listener can obtain
all 11 reproduced tones without high frequency sound. Contrary to this, if there is Poltupuru
acoustic equipment and a whistle is at the foot of the listener, turn the various parts 5 through
the speaker grill 9 to turn the speaker grill 9 upward, and the listening sparrows are high. It is
possible to listen to the reproduced sound without missing area sound.
'Circle, in the above embodiment, weir 51 of the speaker grill 9' to '4-1. ((Other than this, the
speaker grille 9 is integrally formed with the mounting bag 10 as shown in FIG. 6, and the
rotation shaft provided on this hooked rod 1o It may be configured to rotate the entire speaker
grille 91 around the center 12. Further, although the above-described embodiment has described
the case where the voice call device of the present invention is applied to a monaural sound
device, it can be applied to a stereo sound device other than this. That is, as shown in FIG. 7, it is
necessary to dispense the weir 5 constituting the speaker grille 9 so as to form a fold pattern,
make the bag 5 rotatable or make the speaker grille rotatable. (More from that, it is possible to
obtain a stereo feeling without losing the sense of localization by changing the direction in which
the high frequency sound is output. As described above, according to the present invention, since
the speaker grille arranged in front of the speaker is made rotatable, the direction of the sound
range from the speaker can be freely changed according to the listening side of the loser.最適
can listen to the optimum sound at all times depending on the listening position and habit. ゝ
\〕 6
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