JPS5297533

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DESCRIPTION JPS5297533
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front view of a known home radio,
FIG. 2 is a schematic side view of an acoustic device according to the present invention, and FIGS.
3 and 4 are main parts of the present invention. It is side surface sectional drawing of each state
ranging before and behind operation | movement. DESCRIPTION OF SYMBOLS 1 ... Speaker 2, 2
... sound device, 3 ... speaker gullet, 4,5 ... sound transmission hole.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an acoustic device
provided with acoustic pointing control means such as radio, and a member for arbitrarily
performing openable acoustic transmission and acoustic reflection in which this acoustic
direction is interrogated to a speaker. , To control, to be t4I. For example, in the home radio
second called ?Digita? and ?Itta? and ?ni? shown in FIG. 1 in which the speaker is pushed
upward, the meeting speaker does not face the 1IIII hand. Degraded sound quality; listening to
the eye (1) ? 2 ohms Keml interferes with the radio's original function. In order to improve this
effect, this device is provided with a reflector in the vicinity of the speaker so as to be openable
and closable, and opened to smooth the sound emission of the KFi speaker when closed. The
above-mentioned flexible-layer tube construction is provided so as to close the Km mouth so as
to be reflected in the sound emission and the work position. ; + @ 211 tfjl D-implementation "0" 0
outline 0-1 is a speaker, 2 is a home radio, 5 Fi reflector-Reflector 5 reflects the sound emitted
from the speaker 1 to the other side as indicated by a solid arrow, Emphasize the direction
towards the prisoner. As shown in FIG. 5, a plurality of through holes 4 and 5 are provided by
overlapping ninety two plates 6 and 7 as shown in FIG. WK is implanted with bins 8.9 and 10.11,
and these bins 8, 9 are rotatably mounted with connecting plates 12 and 13 in the center of the
pipe, respectively (3) Slots 14 and 15 provided in 12 and 13 are suitable for bins 10 and 11,
respectively. Furthermore, the is end drawing of the plate 7 is * in the home radio first body *?
The attached support shaft 16 is rotatably attached to the center, and the center #C plates 6 and
7 are attached to the speaker 1 so that the support shaft 16 can be opened and closed freely. FIG.
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3 shows the case where the plates 6 and 7 are closed to the speaker 1, and in this case, the
through holes 4 and 5 are in communication, and the speaker 10 emits noise upward as it is @
Protect corn paper etc. from mechanical failure. On the other hand, as shown in FIG. 4, when the
plates 6 and 7 are opened by putting a finger on the finger hook 11468 at the tip of the plate 6,
the rear of the Ii body 60 hits the notch edge 211 and Guided downward along the elongated
holes 14 and 15 of the 10.11 Fi rungs 12 and 13, therefore, the through holes 4 and 5 dominate
each other and are 1111 bored. In this case, the discharge from the speaker 1 is carried out by
the plates 6 and 7 blocking the through holes 4p and 5 in the forward direction #CC summer,
and goes up inside the finger for the listener (s) who is in the forward direction.
Thus, the directionality can be changed arbitrarily from the plate 6 and yoway K). As described
above, according to the present invention, the speaker grille is provided freely openable and
closable to the sound of the speaker I # -IJHc ? i, and the speaker grille is closed. In an open
state ll Ic or i having an acoustic transmission hole, the acoustic transmission hole is closed and
as an acoustic reflection plate! 2) By increasing K, it is possible to improve the directivity
characteristics of a radio or the like in which a speaker is attached to 1 pottery such as an alarm
radio, and to improve the sound IIP noise to be heard. 4.51141 Brief Description fIIE1 Figure
shows a schematic positive IIII of a known home radio. FIG. 2 is a schematic view of the acoustic
device according to the present invention, and FIG. 3 and FIG. 4 are diagrams of the precious
case 1IvWi of each state in the operation i ** of the present invention. '-: I1------------------------Speaker 2-----------------------------------------------------------------------Speaker Speaker (4) 4.5 иииииииии Sound
transmission Hole utility model registration applicant Sony Corporation, и ?. Tsuno (&) Fig. 1 Fig.
1 Fig. 1 ? 3 ((? = ? 12 '2' Fig. 3 5 5 8 8 8 8 8 4 Figure 4640715 r; 1 5 5, 5 / / 3 g 7533
Applicants Sony Corporation-Ichi 5, other inventor address 526-2 Komai, Sabae city, Tokyo Name
gate 'ei' i address, Tokyo Ota Ward Kitasenbe 1-59-9 Name Tokuhiko Wakyu
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