JPH07112306B2 - Speaker device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a speaker device, more specifically, in a theater, a concert hall, or in a radio cassette or the like. The present invention relates to a speaker device that can be skipped to a wide range, and thus can provide an excellent realistic sensation over a wide range.

[0002]

2. Description of the Related Art Conventionally, a speaker that has been installed in a theater, a concert hall, etc., and in which a sound in a low range or a middle range, in particular, can be similarly provided not only near the installation site but also in a relatively distant place. Various devices have been proposed and are commercially available.

This type of speaker device is provided with a plurality of speaker units arranged on the same plane in front of them, or in such a manner that their mounting directions are parallel to each other.

[0004]

However, the above-mentioned conventional speaker device can provide excellent presence not only in the vicinity of the installation place but also in a relatively distant place, but it is still insufficient. there were.

Therefore, the present invention has been made to solve the above-mentioned drawbacks of the conventional speaker device.
It can be installed in theatres, concert halls, etc., or used in radio cassettes, etc., and in particular, low-range or mid-range sounds can be blown farther than conventional speakers, so that a great sense of presence can be obtained over a wide range. It is to provide a speaker device.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above object, and its gist is to provide a speaker device having a plurality of speaker units in one speaker cabinet, wherein the cabinet includes the speakers. The unit is supported so that the mounting direction axes thereof intersect with each other in front of the unit, and the unit is used together with the back load horn to define the space between the horn and the unit.
The partition that forms an opening near the rear middle of each unit.
And a member .

Further, the gist of the present invention is a speaker device having a plurality of speaker units in one speaker cabinet, wherein the cabinets intersect with each other in the mounting direction axis of each speaker unit. And a guide member for converging the sounds from the respective speaker units and then joining them, a truncated front pyramid-shaped front load horn connected to the guide member, and the front inside the cabinet.
The space of the load horn and the speaker unit
Partitioned outside, and the front load horn
And a supporting member for supporting the speaker device. Here is a truncated pyramid-shaped front load
A horn is a front load horn connected to a guide member.
The base opening and the expanded output opening are substantially similar
Formed in related polygonal shape and output from the base opening
Each surface leading to the opening was expanded by a predetermined functional system
Something, including some that are slightly curved (Figs. 3 and 4)
reference).

Here, the mounting direction axis is an axis in the direction in which sound is emitted from the speaker unit.

[0009]

According to the speaker device of the present invention, a plurality of speaker units are supported in one speaker cabinet such that their mounting direction axes intersect each other in front of the unit, and a back load horn and the horn. Over
And the space of the unit is divided, and
With a partition member that forms an opening near the rear middle part, the forward sound from each speaker unit intersects and interferes, creating a larger sound, and the rear sound from each speaker unit is also cabinet. Interfering within and creating a louder sound, which is the rear middle part of each unit
After intensively passing through the opening of the partitioning member provided in the vicinity, the phase is inverted through the back load horn, and again interferes with the larger sound created by the sound in the front direction to create an even larger sound.

Further, the speaker device of the present invention supports a plurality of speaker units so that the mounting direction axes thereof intersect with each other in front of the units, and the sound from each speaker unit is once converged by the guide member. ,
In addition, they merge and interfere with each other, and
Create a louder sound through the sound horn . This time,
The front load horn and the cabinet in the cabinet
And the space of the speaker unit on the outside.
And a support portion that supports the front load horn
Depending on the material,
The sound pressure of the live sound is applied to the back of the front load horn.
Reduces and cancels the sound that is merged and interfered by the guide member
To eliminate such anxiety. In addition, the flap connected to the guide member
By making the front road horn a truncated pyramid cylinder,
The guide member once converges, and then merges and interferes.
The sound from the speaker unit
The efficiency of the above
Created by leading to the Londo Road Horn.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a speaker device according to the present invention will be described below with reference to the accompanying drawings.

1 (a) and 1 (b) respectively show a schematic front view of a speaker device of the present invention and a sectional view taken along line Ib-Ib of FIG. 1 (a).

As shown in these figures, a speaker cabinet 10 is provided with a back load horn 12, and is a box shape composed of an upper plate 13, two side plates 14, a lower plate 15, and a back plate 16. And a baffle plate 1 provided below the opening 12a of the back load horn 12 on the front side thereof.
7 and two bass speaker units 18 attached to the baffle plate 17.

The back load horn 12 is for partitioning the interior of the cabinet 10 into the back load horn 12 and the space of the speaker unit 18, and for passing the reproduced sound from the rear surface of the speaker unit 18 to the back load horn 12. The opening 19a and the sound plate 2 attached to the partition member 19 via the connecting member 20a with a slight inclination to guide the reproduced sound from the opening 19a.
0, and sound moving plates 21 and 22 that are connected to the passage formed by the sound moving plate 20 and the back plate 16 by bending at a substantially right angle and form a passage that extends toward the end. Reference numeral 23 is a bar member that reinforces the back plate 16 of the cabinet 10 and prevents vibration, and efficiently guides a reproduced sound to the back load horn 12, and 24 is a reinforcing plate.

The baffle plate 17 is composed of two flat plates, which are connected to each other by two connecting plates 25 which are inclined inward and face each other, so that the speaker unit 18 has its mounting direction axis line. 18a (shown by an imaginary line in the drawing) intersects at the front. The connection angle of the baffle plate 17, that is, the unit 18
The angle α formed by is appropriately selected according to the size of the cabinet 10 and the installation location, for example, the size of the concert hall or the room.

FIG. 2 is a partially cutaway schematic front view of a speaker device of the present invention different from the speaker device of FIG. Speaker cabinet 5 of the speaker device shown in this figure
0 has a box shape composed of an upper plate 54, two side plates 55, a lower plate 56, and a back plate 57, and upper and lower chambers 52a and 53a (Fig. Three
Front load horns 52 and 53, respectively. Reference numeral 57a is a joining plate that is attached to the back plate 57 to reinforce and join the side plate 55.

3 to 5 respectively show a side sectional view taken along line III-III, a plan sectional view taken along line IV-IV and a plan sectional view taken along line VV in FIG.

2, 3 and 5, the cross sectional shape of the front load horn 52 is an exponential horn shape, and this horn is screwed to a partition member 52b partitioning the chamber 52a at substantially the center. It is connected to the adapter 52c of the speaker unit for high sound, and the speaker unit 52d for high sound is further connected to this adapter 52c.

2 to 4, and further explained, the front load horn 53 is also the front load horn 5.
Similar to 2, the cross-sectional shape thereof has an exponential horn shape, and the rear end portion of this horn is supported by a supporting member 59 that further partitions the chamber 53a and a reinforcing member 59a that reinforces the same. Further, the rear ends of the horns are guided to the two speaker units 60 that are inclined so as to face each other inward so that the reproduced sound from each unit 60 does not leak and does not diverge. And a sound moving plate 61a for connecting the reproduced sounds.

The sound plates 61 and 61a prevent noise other than the reproduced sound from entering, for example, noise from the outside to prevent the noise from being combined with the reproduced sound and to synthesize only the reproduced sounds. it can. Therefore, each speaker unit 6
0 is an arrangement in which the mounting direction axis 60a (shown by an imaginary line in the drawing) intersects at the front. Note that the unit 60 is similar to the angle α formed by the speaker unit 18 described above.
The angle β formed by is appropriately selected according to the size and installation location of the cabinet 50, such as the size of the concert hall or room.

Reference numeral 62 is a joining plate attached to the back plate 57 for reinforcing and joining the side plate 55.
2'is attached to the back plate 57 for reinforcement and upper and lower plates 5
A bonding plate for bonding with 4, 56, and 63,
Reference numerals 64 are openings for handles provided in the front and the rear of the side plate 55, respectively.

Next, each speaker cabinet 10, 5
The acoustic operation of No. 0 will be described with reference to FIGS.

First, as shown in FIG. 1B, in the speaker cabinet 10, the reproduced sound traveling forward from each speaker unit 18 crosses and interferes at the front, and the reproduced sound traveling rearward is reproduced. And travels through the back load horn 12 from the opening 19a (see the arrow in the figure) and again interferes with the reproduced sound that interferes in the front, and a larger reproduced sound is created and radiated to the outside. It should be noted that the playback sound that travels backward has the same phase as that of the playback sound that travels forward when the sound travels through the backroad horn 12, and thus has the same phase as the playback sound that travels forward. A larger reproduced sound is synthesized without canceling each other. Further, the speaker units 18 are connected to each other with the same polarity and are driven by the same phase voltage so that the reproduced sounds in front of each other are not reproduced sounds having opposite phases, that is, reproduced sounds having phases canceling each other.

Next, as shown in FIG. 4, in the speaker cabinet 50, the reproduced sound traveling forward from each speaker unit 60 is guided by the sound moving plate 61 (in the figure,
(See arrow), the reproduced sound from each speaker unit 60 crosses and interferes between the sound plates 61a, a larger reproduced sound is created, passes through the front load horn 53, and is radiated to the outside. It should be noted that each speaker unit 60, like the speaker unit 18, reproduces sounds having opposite phases,
That is, they are connected to the same polarity so as not to generate reproduced sounds having phases that cancel each other, and are driven by the same phase voltage.

Although not shown in the figure, a sound absorbing material such as glass wool or felt is attached to the inner peripheral surface of the speaker cabinet, and the output terminal of the speaker unit is attached to the back plate of the cabinet. Is installed. Further, the output terminal is connected to an external device such as an amplifier by wiring in a known manner.

The number of speaker units is not limited as long as the mounting direction axes of the units intersect with each other in the front of the same cabinet. Further, in the same cabinet as the speaker cabinet 50 of the present embodiment, conventionally arranged high-pitched speaker units and the like can be combined as desired.

Further, a plurality of speaker cabinets of this embodiment may be combined or installed upside down or lying down so that the vertical and horizontal relationships are reversed.

[0028]

As described above, in the speaker device of the present invention, a plurality of speaker units are supported in one speaker cabinet such that their mounting direction axes intersect each other in front of the unit, and the back load is performed. Dividing the space between the horn and the horn and the unit
Together with this, an opening is formed near the rear middle part of each unit.
Since a partition member is provided, forward sounds from each speaker unit intersect and interfere with each other to create a larger sound, and backward sounds from each speaker unit also interfere with each other, resulting in a larger sound. been created, this is the Yu
Open the opening of the partition member provided near the rear middle part of the knit.
After a concentrated pass, it can be phase-reversed through the backroad horn and re-interact with the larger sound created by the forward sound, creating a larger sound, and thus a better sound over a wider range than conventional speaker devices. A space can be provided.

Further, in the speaker device of the present invention, a plurality of speaker units are supported in one speaker cabinet such that their mounting direction axes intersect each other in front of the unit, and the sound from each speaker unit is temporarily output. a guide member for converges and merges, the guide inside
Front load horn in the shape of a truncated pyramid connected to wood
And the front load ho in the cabinet
The space between the speaker and the speaker unit outside.
Support for supporting the front load horn.
Because and a support member, by the sound from the speaker unit by the guide members may interfere intersect, Ruue able to create large sound, depending on the support member
The sound of the playback sound that travels backward from the speaker unit.
Reduces pressure on the back of the front load horn,
Canceling the sound that is merged and interfered by the guide member
You can eliminate anxiety. Also, connect it to the guide member.
Because the front load horn is a truncated pyramid,
The above guide members once converged and merged to cause interference
The sound from the speaker unit leaks inside the guide member.
The above CFCs can be used efficiently and without diverging
Can be created by guiding to a trode horn. Therefore, it is possible to provide a better sound field space over a wider area than the conventional speaker device.

[Brief description of drawings]

1A is a schematic front view of a speaker device of the present invention, and FIG. 1B is a sectional view taken along line Ib-Ib of FIG.

FIG. 2 shows a partially cutaway schematic front view of a speaker device of the present invention which is different from the speaker device of FIG.

3 shows a side sectional view along the line III-III in FIG.

FIG. 4 shows a plan sectional view along the line IV-IV in FIG.

5 shows a plan sectional view along the line VV in FIG.

[Explanation of symbols]

 10,50 Speaker cabinet 12 Back load horn 18,60 Speaker unit 18a, 60a Mounting direction axis 61, 61a Guide member

Claims (2)

[Claims] 1. A speaker device comprising a plurality of speaker units in one speaker cabinet,
The cabinet supports the speaker units such that their mounting direction axes intersect with each other in front of the unit, and also includes a back load horn and the cabinet.
Partition the space of the horn and the unit
And form an opening near the rear middle of each unit.
Speaker apparatus characterized by comprising a partition member that. 2. A speaker device comprising a plurality of speaker units in one speaker cabinet,
The cabinet supports the speaker units such that their mounting direction axes intersect each other in front of the units, and guides the sound from the speaker units to converge and then join the sound, and the guide member. a front loading horn truncated pyramidal tubular shape connected to the calibration
The front load horn and the suspension in the vignette
The space of the peaker unit is divided outside,
And a supporting member for supporting the front load horn .