JPH0573067A - Surround device - Google Patents

Abstract

PURPOSE:To secure a large surface sound source without occupying any large interior space by connecting a hollow surround edge which has sound holes bored above the cabinets of speaker systems through guide cylinders. CONSTITUTION:This surround device consists of a couple of speaker systems 2a and 2b for a high-frequency range and a low-frequency range, the guide cylinders 3a and 3b provided above them, and the hollow surround edge 4 which is arranged to the whole periphery in the room. For the purpose, the surround device 1 is connected to a visual device 14 and then sounds from the speaker units can be outputted to the inside of the room from the sound holes 12 of the hollow surround edge 4 through the guide cylinders 3a and 3b, so that the surround device can function as the large surface sound source.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surround device used in a room acoustic system.

[0002]

2. Description of the Related Art In recent years, various inexpensive and high-performance audio systems have been provided, and many people have come to enjoy listening to music. In addition, various types of systems in which an audio system and a visual device are combined are provided, and it is becoming possible to obtain the same sense of presence and unity as in a movie theater, for example, even at home. Against this background, a dedicated listening room can be built in a house to enjoy listening to music individually or by several people, or by installing a visual device in the listening room and combining it with a stereo device to enjoy a movie as a home theater. The number of people who cheat is increasing.

[0003]

By the way, in recent years, a stereo device and a visual device having a surround mechanism are provided so that a more realistic and unified feeling can be obtained when enjoying watching a movie in this way. However, in order to make full use of such a surround mechanism, it is necessary to provide another speaker in addition to the speaker provided in the stereo device and the visual device, but there is a problem that the space cannot be taken when the room is small. is there. In addition, it is desirable to install speakers behind or on the side of the viewer in the room in order to obtain a more sense of presence and unity, but there are problems with the above space when many speakers are prepared. There is an inconvenience that the price will be high.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a surround device which is inexpensive and can be arranged over a wide area in a room.

[0005]

In the surround device of the present invention, a speaker system in which a speaker unit is disposed inside a cabinet with the speaker unit facing upward, and a tube disposed directly above the speaker unit in the cabinet. -Shaped guide tube and a hollow peripheral edge that is arranged in the room and communicates with the guide tube. The inside of the guide tube is made to communicate with the inside of the cabinet, and a plurality of sounds that open toward the room at the peripheral edge. The provision of the through hole was a means for solving the above problems.

[0006]

According to the surround device of the present invention, the sound from the speaker unit is connected to a stereo device such as a player and an amplifier, and various visual devices, so that the sound from the speaker unit can be provided in a plurality of peripheral edges arranged in the room through the guide tube. It can be poured from the sound output hole.

[0007]

1 to 5 are views showing an embodiment of a surround device of the present invention. In these drawings, reference numeral 1 is a surround device. The surround device 1 includes a pair of speaker systems 2a for bass and treble,
2b, guide cylinders 3a and 3b respectively provided on the upper parts of the speaker systems 2a and 2b, and a hollow peripheral edge 4 arranged over the entire circumference of the room.

The speaker system 2a (2b) is shown in FIG.
As shown in, it is placed on the front wall side of the room,
As shown in FIG. 2, the cabinet 5 has a hollow rectangular parallelepiped shape and a speaker unit 6 such as a cone unit provided inside the cabinet 5. On the upper surface of the cabinet 5, a cylindrical connecting tube 7 is provided so as to communicate with the inside of the cabinet 5. Speaker unit 6
Is the same as that used in a known speaker device, and is arranged and mounted in an upward direction just below the connecting cylinder 7 of a mounting plate 8 horizontally arranged in the cabinet 5. It is a thing. Further, as shown in FIG. 2, a sound absorbing material 9 such as glass wool is filled below the speaker unit 6, whereby vibrations from the rear of the speaker unit 6 are absorbed by the sound absorbing material 9 and converted into heat energy. It has become so.

The guide cylinder 3a (3b) is a cylindrical member made of resin or the like which is externally inserted into the connecting cylinder 7 and airtightly connected thereto, and is opposite to the connecting cylinder 7 as shown in FIG. 3 or 4. The side is connected to the rim 4. The peripheral edge 4 serves as a parting edge between the ceiling and the wall, and the base portion 4a that is in contact with and attached to the ceiling and the wall and the decorative surface 4b that is disposed on the indoor side are integrally formed by making the inside hollow. It is composed of. In addition, this peripheral edge 4 is made of resin, wood,
The partition plate 10 is made of metal or the like, and a partition plate 10 that divides the decorative surface 4b into two parts is disposed inside thereof along the length direction. The partition plate 10 divides the hollow portion in the peripheral edge 4 into an upper hollow portion 11a and a lower hollow portion 11b, which are independent from each other, and prevent the sounds flowing through them from being transmitted to the other hollow portion. It was done.

Further, on the decorative surface 4b of the peripheral edge 4, as shown in FIG. 1, a plurality of sound emitting holes 12 are formed along the length direction thereof.
Are formed. These sound output holes 12 ... Are the decorative surfaces 4b
Are arranged along the length direction, and the shape of the opening is an ellipse, and the longitudinal direction thereof is aligned with the arrangement direction. Note that 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.

As shown in FIG. 1, these sound output holes 12 are provided only on the side of the upper hollow portion 11a partitioned by the partition plate 10 on the side of the guide cylinder 3a, and on the side of the lower hollow portion 11b on the side of the guide cylinder 3b. Are arranged respectively. Since the guide tube 3a is connected to the upper hollow portion 11a side as shown in FIG. 3 and the guide tube 3b is connected to the lower hollow portion 11b side as shown in FIG. 4, it is connected from the speaker system 2a. Sound from the upper hollow portion 11a side of the peripheral edge 4 via the guide tube 3a, and sound from the speaker system 2b from the lower hollow portion 11b side of the peripheral edge 4 via the guide cylinder 3b.

The sound output holes 12 are provided with caps 13 for closing the respective openings.
The cap 13 is made of a soft resin, rubber or the like, and is detachably fitted into the opening of the sound output hole 12 to prevent sound from flowing through the sound output hole 12.

To use the surround device 1 having such a structure, for example, as shown in FIG. 1, speaker systems 2a and 2b are arranged behind a visual device 14 placed on the front wall side of the listening room, and these speaker systems are arranged. The systems 2a and 2b are wired and connected to the visual device 14 having a built-in surround function. Here, it goes without saying that the speaker systems 2a, 2b are connected to the peripheral edge 4 via the guide cylinders 3a, 3b.

Then, a reclining seat or the like is placed toward the visual device 14, and the visual device 14 is played by sitting there. Then, an image is displayed on the screen 15, and an electric signal from the visual device 14 becomes a sound through the speaker units 6 and 6 of the speaker systems 2a and 2b, and the guide tubes 3a and 3b and the peripheral edge 4 are produced.
Through the front side (side of the guide cylinders 3a, 3b) of the sound output hole 1
It flows from 2 ... As the sound flows out from the sound output holes 12 on the left and right of the peripheral edge 4 and on the back side in this manner, the person sitting in the center can sense the wide sound. That is, each sound output hole 12 ...
Since the sound that flows from each of the sound sources spreads, the sound flows from the plurality of sound output holes 12 at the same time, so that the entire sound source becomes a surface sound source and reaches the sitting person with a large spread.

Further, the surround device 1 sends a sound together with the speakers 15 and 15 of the visual device 14, so that the sound effect can be heard in the surround by the surround function built in the visual device 14.
It is possible to further enjoy the movie or the like displayed on the screen 15.

Further, it is possible to close the sound output holes 12 at appropriate positions with a cap 13 and change the sound outlet from the peripheral edge 4 according to the taste of the listener, so that the sound can be further enjoyed. You can

In such a surround device 1,
By connecting to the visual device 14 or the like, the sound from the speaker unit 6 can be made to flow from the sound emitting holes 12 ... Of the peripheral edge 4 via the guide tubes 3a and 3b, thereby functioning as a large surface sound source. .. Also, since the part where the sound finally flows is set as the rim, it does not occupy a large space in the room even though a large surface sound source can be secured, and it has a sufficient presence in a small room,
It creates a sense of unity. Furthermore, since the entire structure is simple and the rims that are normally arranged in the room are used, the cost is reduced even though the sound output holes can be arranged in the whole room.

Although the sound output hole 12 has an oval shape in the above embodiment, all shapes such as an ellipse, a circle, a rectangle, a square, a rhombus, and other polygons can be adopted. The directivity of sound can be changed depending on the shape.

[0019]

As described above, in the surround device of the present invention, when connected to a visual device or the like, the sound from the speaker unit can be made to flow from the sound output hole of the peripheral edge through the guide tube, and thus It functions as a large surface sound source, which can create a sense of presence and unity. Also, since the part where the sound finally flows is set as the rim, it does not occupy a large space in the room even though a large surface sound source can be secured, and it creates a sense of realism and unity even in a small room. You can Furthermore, since the entire structure has a simple structure and the rim that is normally arranged in the room is used, it is possible to form the whole structure at low cost even though the sound output holes can be arranged in the whole room.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a surround device of the present invention.

FIG. 2 is a side sectional view of a main part of the surround device shown in FIG.

3 is a side sectional view of a main part of the surround device shown in FIG.

FIG. 4 is a side sectional view of a main part of the surround device shown in FIG.

5 is a plan view showing a schematic configuration of the surround device shown in FIG. 1. FIG.

[Explanation of symbols]

 1 Surround device 2a Speaker system 2b Speaker system 3a Guide tube 3b Guide tube 4 Surrounding edge 5 Cabinet 6 Speaker unit 12 Sound output hole

Claims (1)

[Claims] 1. A speaker system in which a speaker unit is arranged inside a cabinet so as to face upward,
The upper part of the cabinet is composed of a tubular guide tube disposed directly above the speaker unit, and a hollow peripheral edge which is communicated with the guide tube and is disposed inside the room. The inside of the guide tube is communicated with the inside of the cabinet. The surround device is provided with a plurality of sound output holes that are open toward the room at the peripheral edge.