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JPH01228296

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DESCRIPTION JPH01228296
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker apparatus mounted on a ceiling, a wall or the like for use in direction-rotation type. 2.
Related Art Conventionally, as a speaker device of this type, a configuration in which a speaker is
directly attached to a ceiling, a wall or the like is known. Hereinafter, the above-mentioned
conventional speaker device will be described with reference to FIG. As shown in FIG. 6, for
example, the speaker attachment formed on the ceiling 51 is such that the speaker 53 is inserted
into the hole 52, the attachment of the speaker 53 is superimposed on the outer edge of the hole
52, and the attachment is a part A speaker mount 54 is fixed to the outer edge of the hole 52 by
a screw 55. SUMMARY OF THE INVENTION However, in the above-described conventional
speaker device 56, the speaker 53 can not be changed in any direction after the speaker device
56 is installed in order to fix the speaker 53 to the ceiling 51 etc. . Therefore, when the speaker
53 is mounted at a non-optimal position due to the above restrictions etc., 7 ratter echo may be
generated between the ceiling and the floor, which may cause disturbance of the sound field. As
shown in FIG. 5, the cover area 57 of the speaker 53 is determined as indicated by hatching, so
that depending on the position of the listener M, there is a problem that a good sound can not be
supplied to the listener M. The present invention solves such conventional problems, and even
after the speaker is installed on a ceiling, a wall, etc., its direction can be changed, and the
occurrence of flutter-echo can be prevented. The attachment which can supply a good sound to a
listener aims at providing a direction rotation type speaker device. Means for Solving the
Problems In order to achieve the above object, the present invention provides a speaker having a
spherical portion at least at a part of a speaker box, and rotatably supports the spherical portion
of the speaker, a ceiling and a wall The speaker attachment is attached to the speaker attachment
is attached to the seat, the ring-shaped speaker pressing member which holds the spherical part
of the speaker to allow rotation to the speaker attachment, and the speaker attachment is the
03-05-2019
1
seat and speaker pressing member And a connecting member made of an elastic material that
connects the two. Function The present invention has the following function by the above
configuration. That is, by using the spherical portion of the speaker box, the speaker is slid
relative to the seat and the speaker pressing member by the speaker attachment, and is freely
rotated in both the horizontal direction and the vertical direction. Can be changed to
Examples of the present invention will be described below with reference to the drawings. 1 to 4
show an embodiment of the present invention in which the attachment is a direction-rotation
type speaker device, FIG. 1 is an exploded perspective view, FIG. 2 is a side view of the completed
attachment, and FIG. FIG. 4 is an explanatory view of a cover area of the speaker device, in which
the direction of FIG. In FIG. 1, reference numeral 1 denotes a speaker, and the sound radiating
portion 3 of the speaker unit is exposed to a part of the speaker box 2, and the whole is formed
substantially spherically 64 is a seat for the speaker attachment, a tapered portion The annular
mounting portion 6 is connected to the large diameter portion 5 side, and the receiving portion
made of cushioning material is heated to the small diameter portion side of the tapered portion 5
and this receiving portion 7 is the speaker box 2 It is formed to be smaller than the maximum
diameter. In the tapered portion 5, cylindrical fixing portions 8 and hook-like locking portions 9
are alternately provided at equal intervals of 4 places on the circumference, and screw insertion
holes 10 are formed at a plurality of places in the portion 6 for mounting It is done. An annular
speaker pressing member 11 has an inner diameter smaller than the maximum diameter of the
speaker box 2, and holes 12 are formed at four equally spaced positions on the circumference.
Reference numeral 13 denotes a pair of connecting members for connecting the seat 4 and the
speaker pressing member 11 in the speaker attachment, and is formed of an elastic material such
as rubber. Each connecting member 13 is inserted into the adjacent hole 12 in the speaker
pressing member 11, one end of the speaker attachment is inserted into the cylindrical fixing
portion 8 of the seat 4, and a knot is formed by a locking means (not shown) At the other end, a
ring-shaped locking portion 14 is provided which is fixed to the locking portion 9 of the seat 4 at
the other end. Next, the order of attaching the speaker 1 to the ceiling according to the above
embodiment will be described. As shown in FIGS. 2 and 3, first of all, the spherical portion of the
speaker box 2 of the speaker 1 is supported by the portion 7 for receiving the seat 4 and the
sound emitting portion 3 is mounted for the seat 4 Position in the opening. Next, the speaker
pressing member 11 is placed on the other side of the spherical portion of the speaker box 2,
and the locking portion 14 of each connecting member 13 is locked to the locking portion 9 of
the seat 4. As described above, the speaker attachment for supporting the speaker box 2 so as to
squeeze is by connecting the seat 4 and the speaker pressing member 11 by the connecting
member 13 having elasticity, the speaker attachment for the speaker box 2 is the seat 4 and the
speaker pressing member 11 The sound emitting unit 3 can be oriented in any direction by
supporting the speaker box 2 in a fixed state and forcibly sliding and rotating the speaker box 2.
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2
Then, the speaker mounting formed on the ceiling 5 inserts the speaker 1 etc. from the front side
into the hole 16, the speaker mounting superposes the portion 6 of the mounting of the seat 4 on
the outer surface of the surface of the hole 16 and the mounting The speaker main body 1 can be
attached to the ceiling 15 by screwing the screw insertion hole 10 and the screw 17 into the
screw hole 18 formed in the outer edge of the hole 16. As shown in FIG. 4, the speaker device 19
is mounted at a non-optimum position due to the above restriction etc., and the cover area 20
becomes as shown by a chain line and the above does not reach the listener M As described
above, the speaker 1 is forced to slide relative to the seat 4 and the speaker press 11 by the
speaker attachment, and the attachment is changed by the direction as desired to change the
cover area 20 as indicated by oblique lines and better for the listener M It can supply sound.
Further, as described above, by changing the direction of the attachment of the speaker 1, it is
possible to prevent the occurrence of flutter-echo between the ceiling 15 and the floor 21 and to
create an optimal sound field. In the above embodiment, the whole of the speaker 1 is formed in
a spherical shape, but at least the speaker attachment in the speaker box 2 is formed in a
spherical shape in a portion that slides in contact with the seat 4 and the speaker pressing
member 11 Good. Effects of the Invention As described above, according to the present
invention, the speaker attachment supports the spherical portion of the speaker box on the seat,
and the spherical portion of the speaker box is held by the speaker pressing member, and the
elastic connecting member is used. Since the speaker attachment connects the seat and the
speaker pressing member and supports the speaker box so that it can be rotated, the attachment
of the speaker can be freely rotated both horizontally and vertically to change it in any direction.
be able to. Therefore, the speaker installation can supply a good sound to the listener by
changing the direction even if the installation sound does not reach the listening sound at a nonoptimal position due to the restriction etc. of the installation above. . In addition, the generation
of flutter-echo between the ceiling and the floor can be prevented, and an optimum sound field
can be created.
[0002]
Brief description of the drawings
[0003]
1 to 4 show an embodiment of the present invention in which the attachment is a directionrotation type speaker device, FIG. 1 is an exploded perspective view, FIG. 2 is a side view of the
completed attachment, and FIG. Fig. 4 is an explanatory view of a cover area of the speaker
device, Fig. 5 is an explanatory view of a cover area of the conventional speaker device, and Fig.
6 is a view showing the conventional speaker device. FIG.
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3
1 ... speaker, 2 ... speaker box, 4 ... speaker mounting seat, 11 ... speaker holding member, 13 ...
coupling member, 15 ... ceiling, 19 ... speaker device. Name of Agent Attorney Nakao Toshio and
others 1 person Figure 1 Figure 2 Figure 4 Figure 5 Figure 6
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4
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