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DESCRIPTION JP2001169373

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DESCRIPTION JP2001169373
[0001]
The present invention can reproduce music recorded in a music source such as a cassette, an MD
(mini disc), a CD (compact disc) or the like, and can listen to an audio signal output from a radio
or the like. The present invention relates to an acoustic device that converts sound into sound
and outputs the sound.
[0002]
2. Description of the Related Art FIG. 14 is a plan view of the interior of a car showing the
arrangement of a center speaker installed as an auxiliary speaker of a conventional on-vehicle
acoustic apparatus. In this figure, 30 is a driver's seat, 31 is a passenger seat, 32 is a rear seat,
33 is an acoustic device installed on the console panel, 34, 35 are front speakers, 36, 37 are rear
speakers, 38 is an acoustic device 33. It is a center speaker connected by the wiring 39.
[0003]
The center speaker 38 is disposed substantially at the center of the front speakers 34 and 35 so
that vocal sound and the like can be heard aurally from the approximately center of the front
speakers 34 and 35. The center speaker 38 is installed on a dashboard or the like in the vehicle,
which is a substantially central position of the front speakers 34 and 35, and is connected to the
acoustic device 33 by the wiring 39.
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[0004]
SUMMARY OF THE INVENTION However, in the conventional audio system, it is necessary to
connect the center speaker with the audio system mounted separately in the car and attach it to
a place such as a dashboard. . Even when the center speaker is not used, it is necessary to install
at least one speaker such as a front speaker or a rear speaker in order to hear the sound, and it is
necessary to wire and attach these speakers.
[0005]
This invention is made in view of this point, and an object of the present invention is to provide
an acoustic device which can make the work of wiring and attachment of a speaker unnecessary.
[0006]
An acoustic device according to the present invention comprises an acoustic device body, a
partition plate provided on the acoustic device body and forming an acoustic space together with
a front panel portion of the acoustic device body, and the partition A speaker is provided on a
board to which an audio signal is supplied from an audio output circuit in the audio device body,
and a bass reflex port provided on a peripheral wall surface covering the audio space.
[0007]
According to this configuration, since the speaker is provided in the sound device main body, it is
not necessary to use another speaker, and it is possible to omit the attachment and wiring work
of the speaker.
When another speaker is used, high-quality sound can be output in combination with the
speaker, or different sounds can be output.
In addition to the voice, the voice includes a sound that can be recognized by hearing such as
music. In addition, since the bass reflex port is provided in the sound device body, it is possible to
enjoy rich sound with bass.
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[0008]
Further, according to the sound device of the present invention, in the sound device, the busless
port is provided at least in the front panel portion.
[0009]
Further, according to the sound device of the present invention, in the above-mentioned sound
device, the front panel portion can be freely inserted in and out from the sound device main
body, and the bass reflex port is provided on at least one of the front surface or the side surface
of the panel portion.
[0010]
Further, according to the sound device of the present invention, the sound device further
includes a mechanical portion for moving the front panel portion into and out of the sound
device main body using a motor as a motive power.
[0011]
According to this configuration, since the front panel portion can be automatically put in and out
of the sound device main body, usability is improved.
[0012]
Further, according to the audio device of the present invention, in the above-mentioned audio
device, the speaker provided on the partition plate is a first speaker, and a second speaker to
which an audio signal is supplied from an audio output circuit in the audio device main body. A
speaker receptacle accommodating the second speaker and movable on the front panel; and a
bass reflex port provided on the front panel with the bass reflex port and opening and closing
according to the movement of the loudspeaker receptacle. A configuration including a lid portion
is adopted.
[0013]
According to this configuration, the first speaker and the bass reflex port can provide a sound
with enhanced low range, and the second speaker can provide a medium-high range sound, so
that rich sounds can be enjoyed.
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In addition, when the acoustic device is not used, the bass reflex port can be closed by the bass
reflex port cover, so that dust and the like can be prevented from entering the acoustic device
main body through the bass reflex port.
[0014]
Further, according to the audio device of the present invention, in the above-mentioned audio
device, the speaker provided on the partition plate is a first speaker, and a second speaker to
which an audio signal is supplied from an audio output circuit in the audio device main body.
And a speaker accommodating portion for accommodating the second speaker and moving on
the front panel portion to open and close the bass reflex port.
[0015]
According to this configuration, when the acoustic device is not used, the bass reflex port can be
closed by the speaker accommodating portion, so that dust and the like can be prevented from
entering the acoustic device main body through the bass reflex port.
[0016]
Further, according to the sound device of the present invention, in the above-mentioned sound
device, the speaker housing portion has a rotation axis in the front panel portion to rotationally
move on the front panel portion, and the speaker housing portion of the speaker housing portion
The bass reflex port is opened and closed on the front side.
[0017]
Further, according to the sound device of the present invention, in the sound device described
above, the first speaker is a speaker dedicated to middle and low tones, and the second speaker is
a speaker dedicated to high sound.
[0018]
According to this configuration, almost the entire audio frequency band can be covered with the
first speaker dedicated to middle / low tones and the second speaker dedicated to high tones, so
rich sounds can be enjoyed.
[0019]
Further, according to the sound device of the present invention, in the above-described sound
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device, the speaker accommodating portion includes a motor as a power source for moving.
[0020]
Further, according to the sound device of the present invention, in the sound device, the speaker
is used as a center speaker.
[0021]
Further, according to the sound device of the present invention, in the sound device, at least one
of the first speaker and the second speaker is used as a center speaker.
[0022]
The acoustic device of the present invention is the above-mentioned acoustic device, wherein the
acoustic device main body is an on-vehicle audio device.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION In the main point of the present invention, a
speaker is provided on a partition plate which forms an acoustic space together with a front
panel of an acoustic device body, and an audio signal is supplied to this speaker from an audio
output circuit. is there.
[0024]
Hereinafter, embodiments of the present invention will be described using the drawings.
(First Embodiment) FIG. 1 is a perspective view showing the appearance of an acoustic device
according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view
taken along the line A-A of FIG.
[0025]
As shown in FIG. 2, in the acoustic device according to the first embodiment, a partition plate 2
forming an acoustic space 3 with the operation panel unit 1A of the acoustic device body 1 inside
the acoustic device body 1, and acoustics It comprises the two busless ports 4 formed in the
lower part of the operation panel section 1A of the apparatus main body 1, and the speaker 5
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attached to the partition plate 2 with the front side facing the inside of the acoustic space 3.
[0026]
The audio device main body 1 is provided with a CD player 6 for reproducing a CD (compact
disc) and an MD player 7 for reproducing an MD (mini disc), and a display unit, a control circuit
and a sound (not shown). An output circuit or the like is provided.
The display section displays the operating states (play, stop, skip, etc.) of the CD player 6 and the
MD player 7.
When the sound device body 1 is equipped with a radio, the display of frequency etc. is also
performed.
[0027]
The operation panel unit 1A is provided with an operation switch (not shown).
The speaker 5 is connected to an audio output circuit (not shown) in the acoustic device body 1
by a wiring member.
By using this speaker 5 as a center speaker together with other speakers (not shown), it is
possible to obtain a realistic sound effect.
In particular, since the bass region is enhanced by the acoustic space 3 and the bassless port 4,
rich bass can be enjoyed.
[0028]
In addition, it is possible to listen to radio broadcasting while listening to music, for example, by
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making the speaker 5 flow the sound of a source different from that of other speakers.
Of course, the speaker 5 may be used alone.
In addition, as the speaker 5, the thing of the full range type which can cover from a low sound
area to a high sound area is suitable.
[0029]
As described above, according to the audio device of the first embodiment, the speaker 5 is
provided in the audio device main body 1, so that it is not necessary to use another speaker, and
the attachment and wiring work of the speaker can be omitted.
If you ask the contractor for wiring and installation work, the installation fee will be increased
and the cost will increase, but it does not happen.
When another speaker is used, high-quality sound can be output or a different sound can be
output in combination with the speaker.
Moreover, since the speaker 5 can be used as a center speaker, there is no deterioration in the
appearance due to the retrofitting of the center speaker.
[0030]
Further, since the acoustic space 3 is formed by the operation panel portion 1A of the acoustic
device main body 1 and the partition plate 2 and the busless port 4 is provided at the lower
portion of the operation panel portion 1A, rich bass with effective acoustic effects You can enjoy
Although the audio apparatus according to the first embodiment has the CD player 6 and the MD
player 7 mounted thereon, other than this, a cassette player may be mounted, or a plurality of
these may be mounted. It may be
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[0031]
Second Embodiment FIGS. 3 and 4 are perspective views showing the appearance of an acoustic
device according to a second embodiment of the present invention.
The acoustic device according to the second embodiment is an application example of the
acoustic device according to the first embodiment, and the operation panel unit 10A is formed in
a cylindrical shape that can be taken in and out of the acoustic device main body 10, and further
left and right The bass reflex port is formed on both sides.
FIG. 4 is a view showing a state in which the operation panel unit 10A is moved forward.
[0032]
The bass reflex port 11 is not limited to the left and right sides of the operation panel 10A, and
may be formed on the upper surface or the lower surface.
In addition, the bass reflex port may be formed on either one of the left and right side surfaces of
the operation panel unit 10A or on either of the upper and lower surfaces.
[0033]
FIG.5 and FIG.6 is a schematic block diagram of the moving mechanism 12 which moves 10 A of
operation panel parts forward and backward. The moving mechanism 12 includes a motor 13
having a gear 14 attached to its rotation shaft, a long plate-like gear 15 having a toothed shape
meshing with the gear 14 attached to the motor 13, and the gear 15 horizontal. And a support
member (not shown) for supporting in the direction. One end of the gear 15 is fixed inside the
operation panel portion 10A.
[0034]
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In the moving mechanism 12, when the motor 13 is moved in the direction in which the gear 14
rotates right, the gear 15 is conveyed forward, and the operation panel unit 10A moves forward.
On the other hand, when the motor 14 is moved in the direction in which the gear 14 rotates left,
the gear 15 is transported backward, and the operation panel unit 10A is moved backward.
Control of the motor 13 of the moving mechanism 12 is performed by a control circuit (not
shown) by switch operation of the operation panel unit 10A.
[0035]
The mechanism for moving the operation panel unit 10A in the front-rear direction is not limited
to the moving mechanism 12, and any mechanism may be used as long as the operation panel
unit 10A can be moved in the front-rear direction. Moreover, you may use a spring other than a
motor as a motive power source. When a spring is used, for example, the operation panel unit
10A is moved backward and stored in the acoustic device main body 10, so that the operation
panel unit 10A is biased and attached to the operation panel unit 10A in that state The key is
hooked to the sound device body 10.
[0036]
Then, in the case of moving the operation panel unit 10A forward with the key being locked, the
key may be removed by pushing the operation panel unit 10A by hand once. By removing the
key, the operation panel portion 10A is pushed forward by the biasing force of the spring. In
order to put the operation panel 10A into the storage state from the state of being pushed
forward, the operation panel portion 10A may be pushed backward and stopped when the key is
locked.
[0037]
Third Embodiment FIGS. 7 and 8 are perspective views showing the appearance of an acoustic
device according to a third embodiment of the present invention, FIG. 9 is a sectional view taken
along the line B--B of FIG. It is CC sectional view taken on the line of FIG. The acoustic device
according to the third embodiment is an application example of the acoustic device according to
the first embodiment, and leads to the acoustic space 21 in the acoustic device body 20 on the
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front left side of the operation panel unit 20A of the acoustic device body 20. A bass reflex port
22 is formed, and a loudspeaker accommodating portion 24 which accommodates a new
loudspeaker 23 and is horizontally rotatable on the operation panel portion 20A is provided.
[0038]
The speaker housing portion (bass reflex port lid portion) 24 also acts as a lid for opening and
closing the bass reflex port 22 in addition to housing the speaker 23. The bass reflex port 22 is
formed slightly larger than the speaker 23 so that the front surface of the loudspeaker 23 is in
close contact with the bass reflex port 22.
[0039]
FIG. 7 shows a state in which the bass reflex port 22 is closed by the speaker 23, and FIG. 8
shows a state in which the bass reflex port 22 is opened. Normally, the bass reflex port 22 is
opened when in use, and closed when not in use. By closing the bass reflex port 22 when not in
use, it is possible to prevent the contamination due to the intrusion of dust or the like into the
acoustic device main body 20.
[0040]
The speaker housing portion 24 is rotatably supported by an open / close hinge 25 formed of a
movable portion 25A, a fixed portion 25B, and a motor 25C (see FIG. 9) incorporated in the fixed
portion 25B. Control of the motor 25C is performed by a control circuit (not shown) by switch
operation of the operation panel unit 20A. In addition, you may use a spring other than moving
the speaker accommodating part 24 by motor 25C. The speaker 23 is connected to an audio
output circuit (not shown) as the speaker 5 is.
[0041]
As described above, since the sound device according to the third embodiment includes the
speaker 23 in addition to the speaker 5, it is possible to enjoy richer sound than the sound
devices according to the first and second embodiments. . Further, by using the speaker 23
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dedicated to the high-frequency range and the speaker 5 to use the medium tone to the low tone
only, almost the entire audible frequency band can be covered, so that richer sounds can be
enjoyed. is there.
[0042]
In the sound apparatus according to the third embodiment, only one speaker 23 is provided.
However, by providing another same one, the stereo effect can be enjoyed. Further, although the
audio apparatus according to the third embodiment is mounted only with the MD player 7 as
shown in the figure, it is of course that the CD player 6 is also mounted similarly to the audio
apparatus according to the first and second embodiments. It may be something.
[0043]
Fourth Embodiment FIGS. 11 and 12 are perspective views showing the appearance of an
acoustic device according to a fourth embodiment of the present invention. In this case, FIG. 11
shows a state in which the bass reflex port 22 is closed by the speaker 23, and FIG. 12 shows a
state in which the bass reflex port 22 is opened. FIG. 13 is a cross-sectional view taken along the
line D-D of FIG.
[0044]
The acoustic device according to the fourth embodiment is a modification of the acoustic device
according to the third embodiment, and the structure of the opening / closing hinge is changed.
The opening / closing hinge 25 of the audio apparatus according to the fourth embodiment is
configured to include a movable portion 25A formed of two arms that support the speaker
accommodating portion 24 in a sandwiched manner, and a motor 25B built in the movable
portion 25A. It is done.
[0045]
The movable portion 25A slides in the horizontal direction by the power of the motor 25B.
Control of the motor 25B is performed by a control circuit (not shown) by switch operation of the
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operation panel unit 20A. A spring may be used other than moving the movable part 25A by the
motor 25B.
[0046]
In the sound apparatus according to the fourth embodiment, only one speaker 23 is provided.
However, by providing another same one, the stereo effect can be enjoyed. Further, although the
audio apparatus according to the fourth embodiment is mounted only with the MD player 7 as
shown in the figure, it is of course that the CD player 6 is also mounted in the same manner as
the audio apparatus according to the first and second embodiments. It may be something.
[0047]
As described above, according to the present invention, since the speaker is provided in the main
body of the apparatus, it is not necessary to use another speaker, and the work of attaching and
wiring the speaker can be omitted. If you ask the contractor for wiring and installation work, the
installation fee will be increased and the cost will increase, but it does not happen.
[0048]
When another speaker is used, high-quality sound can be output or a different sound can be
output in combination with the speaker. In addition, since the speaker provided in the apparatus
main body can be used as a center speaker, there is no expense for attaching a new center
speaker, and there is no deterioration in appearance due to retrofitting.
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