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JPH0573067

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPH0573067
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
surround unit used for an indoor sound system.
[0002]
2. Description of the Related Art In recent years, various inexpensive and high-performance audio
systems have been provided, and many people are enjoying music appreciation. In addition,
various systems in which an audio system and a visual device are combined are variously
provided, and for example, in a home, it is possible to obtain a sense of reality and a sense of
unity similar to a movie theater. Then, from this background, create a dedicated listening room in
the house, enjoy music appreciation with individuals or a few people, install visual equipment in
the listening room and combine it with a stereo device, and enjoy movie appreciation as a home
theater There are more and more people.
[0003]
By the way, in recent years, there have been provided stereo devices and visual devices having a
surround mechanism so as to obtain a sense of realism and a sense of unity when enjoying movie
viewing in this way. However, in order to take advantage of such a surround mechanism, it is
naturally necessary to provide another speaker in addition to the stereo device and the speaker
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provided in the visual device, but there is a problem that the space can not be taken if the room
is narrow. is there. In addition, although it is desirable to install speakers behind and to the side
of the viewer in the room in order to obtain a more realistic feeling and a sense of oneness, there
are problems with the space to prepare many speakers, and further There is a disadvantage that
the cost is high.
[0004]
The present invention has been made in view of the above-mentioned circumstances, and an
object of the present invention is to provide a surround device which is inexpensive and can be
disposed over a wide range in a room.
[0005]
[Means for Solving the Problems] In the surround device of the present invention, a speaker
system in which a speaker unit is disposed upward in a cabinet, and a tube disposed immediately
above the speaker unit in the upper part of the cabinet. The guide cylinder and the hollow
peripheral edge disposed in the chamber in communication with the guide cylinder, the interior
of the guide cylinder is in communication with the interior of the cabinet, and a plurality of
sounds open toward the chamber in the peripheral edge The solution of the above-mentioned
problem is that the delivery hole is bored.
[0006]
According to the surround device of the present invention, by connecting to stereo equipment
such as a player and an amplifier and various visual equipment, the sound from the speaker unit
can be divided into a plurality of peripheral edges arranged in the room through the guide tube.
It becomes possible to flow from the sounding hole.
[0007]
1 to 5 are views showing an embodiment of a surround device according to the present
invention. In these drawings, reference numeral 1 denotes a surround device.
The surround device 1 includes a pair of speaker systems 2a and 2b for bass and treble, guide
cylinders 3a and 3b provided on top of the speaker systems 2a and 2b, and the entire
circumference of the room. It is composed of the arranged hollow peripheral edge 4.
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[0008]
The speaker system 2a (2b) is disposed on the front wall side of the room as shown in FIG. 1, and
the hollow rectangular parallelepiped cabinet 5 and the cone provided inside the cabinet 5 as
shown in FIG. It consists of a speaker unit 6 such as a unit.
A cylindrical connecting cylinder 7 is provided on the upper surface of the cabinet 5 in
communication with the inside of the cabinet 5.
The speaker unit 6 is equivalent to that used in a known speaker device, and is disposed upward
directly below the connecting cylinder 7 of the mounting plate 8 disposed horizontally in the
cabinet 5 Was installed. Further, a sound absorbing material 9 such as glass wool is filled below
the speaker unit 6 as shown in FIG. 2, whereby the vibration from the rear of the speaker unit 6
is absorbed by the sound absorbing material 9 and converted to thermal energy. It has become
so.
[0009]
The guide cylinder 3a (3b) is a cylindrical member made of resin etc. which is externally inserted
and airtightly connected to the connection cylinder 7, and as shown in FIG. 3 or FIG. Connected
to The peripheral edge 4 is a parting edge between the ceiling and the wall, and the base portion
4a that abuts on and is attached to the ceiling and the wall, and the decorative surface 4b
disposed on the indoor side are hollow and integral Was constructed. Further, the peripheral
edge 4 is formed of resin, wood, metal or the like, and a partition plate 10 for dividing the
decorative surface 4b into two along the length direction is disposed inside thereof. The partition
plate 10 is obtained by dividing the hollow portion in the peripheral edge 4 into the upper
hollow portion 11a and the lower hollow portion 11b and making them independent of each
other, so that the sound flowing in each is not transmitted to the other hollow portion. It is
[0010]
Further, as shown in FIG. 1, a plurality of sounding holes 12 are formed in the decorative surface
4b of the peripheral edge 4 along the length direction. These sound producing holes 12 are
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arranged along the length direction of the decorative surface 4b, and the shape of the opening is
oblong, and the longitudinal direction is made to coincide with the arrangement direction. These
sound output holes 12 are not formed on the front side of the room where the speaker systems
2a and 2b are arranged side by side, but are formed on the side wall side and the back side of the
room as shown in FIG. There is.
[0011]
Further, as shown in FIG. 1, these sound producing holes 12 are arranged only on the upper
hollow portion 11a side divided by the partition plate 10 on the guide cylinder 3a side, and only
on the lower hollow portion 11b side on the guide cylinder 3b side. It is set up. Since the guide
cylinder 3a is connected to the upper hollow portion 11a side as shown in FIG. 3 and the guide
cylinder 3b is connected to the lower hollow portion 11b side as shown in FIG. 4 from the
speaker system 2a The sound from the speaker system 2b flows from the upper hollow portion
11a side of the peripheral edge 4 through the guide cylinder 3a, and the sound from the speaker
system 2b flows from the lower hollow portion 11b side from the peripheral edge 4 through the
guide cylinder 3b.
[0012]
Further, the sound producing holes 12 are provided with caps 13 for closing the respective
openings. The cap 13 is made of soft resin, rubber or the like, and is detachably fitted in the
opening of the sounding hole 12 so that sound does not flow from the sounding hole 12.
[0013]
In order to use the surround device 1 having such a configuration, for example, as shown in FIG.
1, the speaker systems 2a and 2b are disposed behind the visual device 14 placed on the front
wall side of the listening room. 2b are respectively connected by wiring to the visual device 14
with a built-in surround function. Here, it goes without saying that the speaker systems 2a and
2b are connected to the peripheral edge 4 via the guide cylinders 3a and 3b.
[0014]
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Then, a reclining seat or the like is placed toward the visual device 14, and the user sits on the
seat to play the visual device 14. Then, an image is displayed on the screen 15, and an electric
signal from the visual device 14 becomes sound through the speaker units 6, 6 of the speaker
systems 2a, 2b, and the guide cylinders 3a, 3b, front side of the peripheral edge 4 (guide It flows
from the sound emitting holes 12 through the tubes 3a and 3b). Then, when the sound flows out
from the sounding holes 12 on the left and right and behind the peripheral edge 4 in this
manner, the person sitting in the center can sense the sound with a spread. That is, since the
sound flowing from each of the sound producing holes 12... Spreads, the sound simultaneously
flows from the plurality of sound producing holes 12. .
[0015]
In addition, when the surround device 1 sends sound together with the speakers 15 and 15 of
the visual device 14, the surround function incorporated in the visual device 14 can listen to
sound effects etc. in the surround, and the movie displayed on the screen 15 Etc. can be enjoyed
more.
[0016]
Furthermore, it is possible to close the sound emitting holes 12 at appropriate positions with the
cap 13 and to change the sound outlet from the peripheral edge 4 according to the preference of
the listener, thereby further enjoying the sound.
[0017]
In such a surround device 1, the sound from the speaker unit 6 can be made to flow from the
sound producing holes 12 of the peripheral edge 4 through the guide cylinders 3a and 3b by
being connected to the visual device 14 or the like. This functions as a large surface sound
source.
In addition, because it made the edge where the sound finally flows around, it does not occupy a
large space in the room despite being able to secure a large surface sound source, and it creates
a sense of realism and a sense of unity even in a narrow room It becomes.
Furthermore, the overall configuration is simple, and the use of the peripheral edge normally
disposed in the room makes the overall cost low despite the fact that the sounding holes can be
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arranged throughout the room.
[0018]
In the above embodiment, the shape of the opening of the sounding hole 12 is oval, but all
shapes such as oval, circular, rectangular, square, rhombus, and other polygons can be adopted.
Can change the directionality of
[0019]
As described above, according to the surround device of the present invention, the sound from
the speaker unit can be made to flow from the sound output hole of the peripheral edge through
the guide tube by being connected to the visual device or the like. It functions as a large surface
sound source, and can thus create a sense of presence and a sense of togetherness.
In addition, since the edge of the sound finally flows around, it is possible to secure a large
surface sound source without occupying a large space in the room and creating a sense of
presence and a sense of unity even in a narrow room. Can. Furthermore, since the entire
configuration is simple and the peripheral edge normally disposed in the room is used, it is
possible to form the whole at low cost despite the fact that the sounding holes can be disposed in
the entire room.
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