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JP2001157294

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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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2001157294
[0001]
BACKGROUND OF THE INVENTION The present invention relates to a center unit in which left
and right surround speakers are mounted on a center unit in which left and right speakers and a
center speaker are integrated so as to be engageable with and disengageable through engaging
means. The present invention relates to a speaker system for a home theater using
[0002]
2. Description of the Related Art In recent years, with the spread of DVDs (digital video discs),
home theater speaker systems are becoming popular. In the speaker system for home theater,
surround channels (channels) are converted to stereo into a total of 5 channels, and 0.1 channel,
which is a low-pass sound effect, is added, and audio for 5.1 channels in total can be reproduced
independently. The same high-quality surround sound as a movie theater will be possible at
home, and you will get the feeling and presence that you feel as if you were in a movie theater.
[0003]
FIG. 6 is a schematic device configuration diagram showing an example of such a home theater
speaker system. The home theater speaker system 41 is roughly configured of a center unit 42, a
woofer unit 43, and left and right surround speaker boxes 44 and 45.
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[0004]
For example, a signal from the DVD player 49 or the like is input to the input terminal of the
center unit 42 mounted on the television receiver 47. At the front of the center unit 42, a left
speaker 51, a center speaker 52, and a right speaker 53 are provided. Left and right surround
speakers 56 and 57 are built in the left and right surround speaker boxes 44 and 45
respectively, and the left and right surround speaker boxes 44 and 45 are supported by the
speaker stand 58 respectively. Furthermore, a woofer speaker 59 is incorporated in the woofer
unit 43.
[0005]
By the way, in the speaker system for home theater as described above, the left and right
surround speaker boxes 44 and 45 are independent from the center unit 42, and surround
speakers when the speaker system for home theater is not used, etc. The boxes 44 and 45 can
not be integrally stored in the center unit 42, which is inconvenient for storage. Furthermore,
even if the surround speaker boxes 44 and 45 are placed adjacent to the center unit 42, there is
a problem in that they are not fixed and unstable, they are inconsistent in design, and they can
not be settled neatly.
[0006]
In addition, when the left and right surround speaker boxes 44 and 45 are integrally formed with
the center unit 42, the left and right surround speaker boxes 44 and 45 can not be freely
disposed. It is an impediment to gaining a sense of reality.
[0007]
Therefore, according to the present invention, the surround speaker box is made independent of
the center unit, and the surround speaker box can be easily stored in the center unit, and the
center unit is designed with uniform design when stored and for home theater using the same. It
aims at providing a speaker system.
[0008]
A center unit according to the present invention is a center unit in which left and right speakers
and a center speaker are integrated, and left and right surround speakers are engaged by
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engagement means on both left and right sides of the center unit. It is characterized in that it is
detachably mounted.
[0009]
The home theater speaker system according to the present invention is a home theater speaker
system including left and right speakers, center speakers, left and right surround speakers, and
woofer speakers, wherein the left and right speakers and the center speaker are integrated on
the left and right sides of the center unit. Each of the left and right surround speakers is mounted
so as to be engageable and disengageable by engagement means.
[0010]
In the center unit according to the present invention, since the left and right surround speakers
are mounted on the left and right sides of the center unit so as to be engageable and
disengageable by the engaging means, the left and right surround speakers are engaged with the
center unit I can do it.
In addition, the left and right surround speakers can be separated from the center unit and can
be arranged freely, which can further enhance the sense of realism.
[0011]
In the speaker system for home theater according to the present invention, the left and right
surround speakers are respectively mounted on the left and right sides of the center unit where
the left and right speakers and the center speaker are integrated by the engagement means so
that the center unit can be engaged and disengaged. The left and right surround speakers can be
engaged and integrated so as to be stored neatly, or the left and right surround speakers can be
separated from the center unit and arranged freely.
[0012]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a speaker
system for a home theater according to the present invention will be described below with
reference to the drawings.
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In the speaker system for home theater, the surround channels are converted to stereo into a
total of 5 channels, and 0.1 channel which is a low-frequency effect sound is added, and a total of
5.1 channels of audio can be reproduced independently.
For this reason, in the speaker system for home theater, the same high-quality surround sound as
that of a movie theater can be realized even at home, and it is possible to obtain the force and
presence as if it were in a movie theater.
[0013]
FIG. 1 is a schematic configuration diagram of a speaker system for home theater according to
the present invention.
The home theater speaker system 1 comprises a center unit body 2, a woofer unit 3, and left and
right surround speaker boxes 5 and 6 which can be attached to and detached from the center
unit body 2.
[0014]
According to the present invention, by providing the left and right surround speaker boxes 5 and
6 in the center unit main body 2 in a removable manner, the left and right surround speaker
boxes 5 and 6 can be arranged at free positions with the convenience of storage.
[0015]
The center unit body 2 is mounted, for example, on the television receiver 7, and a signal from
the DVD player 9 or the like is input to the input terminal.
A left speaker 11 and a right speaker 12 are disposed on the left and right sides of the front
panel 10 of the center unit body 2, and a center speaker 13 is disposed at the center.
An operation unit 14 for operating the center unit 2 is provided between, for example, the center
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speaker 13 and the right speaker 12 of the front panel 10. Engaging portions 16 and 16 'for
engaging with the left and right surround speaker boxes 5 and 6 are provided on the left and
right sides of the center unit body 2, respectively.
[0016]
Left and right surround speakers 17 and 18 are built in the left and right surround speaker
boxes 5 and 6 respectively, and engaging portions 19 and 20 for engaging with the center unit
body 2 are provided on the respective side surfaces. Furthermore, the woofer speaker 22 is built
in the woofer unit 3. The engaging portions 16 and 16 'of the center unit body 2 and the
engaging portions 19 and 20 of the left and right surround speaker boxes 5 and 6 will be
described in detail later.
[0017]
FIG. 2 is a block diagram of a speaker system for a home theater according to the present
invention. An input signal from the DVD player 9 is input to the preamplifier 25 of the center
unit body 2 and processed. The preamplifier 25 performs amplification processing to raise the
level until the power amplifier 28 and the woofer amplifier 29 described later can operate. The
signal amplified and processed by the preamplifier 25 is restored to 5.1 ch by the 5.1 ch decoder
26. 5.1Of the signals restored by the ch decoder 26, 5 ch signals are input to the power amplifier
28 of the woofer unit 3, amplified by the power amplifier 28, and left and right speakers 11, 12
of the center unit 2, the center speaker 13, and left and right The sound is output from the left
and right surround speakers 17 and 18 of the surround speaker boxes 5 and 6.
[0018]
On the other hand, of the signals restored by the 5.1 ch decoder 26, the 0.1 ch signal which is a
low frequency effect sound is amplified by the woofer amplifier 29 for driving the woofer
speaker 22 of the woofer unit 3, and the woofer speaker 22 It is output as a sound.
[0019]
Next, the engaging portions 16 and 16 'of the center unit body 2 as engaging means and the
engaging portions 19 and 20 of the left and right surround speaker boxes 5 and 6 will be
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described.
Since the engaging portions 16 and 16 'of the center unit body 2 have the same shape, only the
engaging portion 16' on the right side surface of the center unit body 2 will be described. FIG. 3
is a side view of the center unit body. A speaker cover 31 is attached to the front panel 10 of the
center unit body 2. A rectangular engagement groove 32 is cut on the side surface of the center
unit main body 2, and pressing plate portions 33 are vertically protruded at upper and lower side
edges of the rectangular engagement groove 32, respectively. A small rectangular groove 35 is
further engraved at the rear center of the rectangular engaging groove 32, and the engaging
projection 36 is supported in an expandable manner in the small rectangular groove 35.
[0020]
The engagement projection 36 is formed of a forward inclined surface 36a and a projection 36b
which is a locking means provided on the top of the inclined surface 36a, and is urged in a
resiliently projecting direction. When the engagement projection 36 is in a projecting state, the
projection 36 b is projected into the rectangular engagement groove 32. That is, the engaging
portion 16 ′ is configured by the rectangular engaging groove 32, the pair of pressing plates
33, the small rectangular groove 35, and the engaging protrusion 36.
[0021]
Since the left and right surround speaker boxes 5 and 6 have the same shape, only the right
surround speaker box 6 will be described. FIG. 4 is a side view of the engagement portion 20 side
of the right surround speaker box 6. A speaker cover 37 is attached to the front of the right
surround speaker box 6. A pair of engagement projections 38 are juxtaposed on the side surface
of the right surround speaker box 6 at predetermined intervals in the vertical direction.
[0022]
At the rear of the portion between the pair of engagement projections 38, a projection 39 having
an engagement groove 39a which is a locking means for engaging with the projection 36b of the
engagement projection 36 of the center unit body 2. Is provided. The pair of engagement
projections 38 engage with the rectangular engagement groove 32 of the center unit main body
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2, and the pair of pressing plates 33 are configured to prevent the detachment in the left-right
direction. That is, the engaging portion 20 is configured by the pair of the engagement projection
38 and the projection 39.
[0023]
Next, a method of engaging and integrating the engaging portions 16 and 16 'of the center unit
body 2 and the engaging portions 19 and 20 of the left and right surround speaker boxes 5 and
6 will be described. First, the ends of the pair of engaging projecting pieces 38 of the engaging
portion 20 of the right surround speaker box 6 are inserted into the rear end of the engaging
groove 32 of the engaging portion 16 'of the center unit body 2 Slide 6 forward. Then, when the
front ends of the pair of engaging projecting pieces 38 of the right surround speaker box 6 abut
on the front end of the engaging groove 32, the pair of engaging projecting pieces 38 slip out in
the left-right direction by the pair of pressing plates 33. At the same time, the projection 36 b of
the engagement projection 36 of the center unit body 2 is engaged with the engagement groove
39 a of the projection 39 while being pushed into the projection 39 of the right surround
speaker box 6. Is locked in the back and forth direction.
[0024]
The engagement between the engaging portion 16 of the center unit body 2 and the engaging
portion 19 of the left surround speaker box 5 is also the same as described above. Thus, as
shown in FIG. 5, the left and right surround speaker boxes 5 and 6 are engaged with and
integrated with the left and right sides of the center unit body 2, respectively.
[0025]
Then, for example, when the right surround speaker box 6 is slid backward with respect to the
center unit body 2 with the left and right surround speaker boxes 5 and 6 engaged with and
integrated with the left and right sides of the center unit body 2 respectively, The engagement
between the pair of engaging projecting pieces 38 of the surround speaker box 6 and the pair of
pressing plates 33 of the center unit body 2 is released, and at the same time, the engaging
groove 39a of the projection 39 of the right surround speaker box 6 and the center The
engagement with the projection 36 b of the engagement projection 36 of the unit body 2 is
released, and the right surround speaker box 6 is detached from the center unit body 2. In this
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manner, the left and right surround speaker boxes 5 and 6 can be separated from the center unit
body 2 and can be freely disposed.
[0026]
Therefore, since the engaging portions 16 and 16 'are provided on the left and right sides of the
center unit body 2 and the engaging portions 19 and 20 are provided on the left and right
surround speaker boxes 5 and 6, respectively, engagement of the center unit body 2 is achieved.
The mating portions 16, 16 'and the engaging portions 19, 20 of the left and right surround
speaker boxes 5, 6 can be engaged and integrated, and the left, right surround speaker boxes 5,
6 can be stored in a very simple and clean form, It is possible to achieve uniform design when
stored.
[0027]
In addition, when the engagement between the engaging portions 16 and 16 'of the center unit
body 2 and the engaging portions 19 and 20 of the left and right surround speaker boxes 5 and
6 is released, the left and right surround speaker boxes 5 and 6 can be freely disposed. The
flexibility of arrangement can be increased, and the sense of reality can be further enhanced.
[0028]
In the above embodiment, the left and right surround speaker boxes 5 and 6 are engaged with
the center unit body 2 by sliding them in the front and rear direction, but the present invention is
not limited to this. Of course, the surround speaker boxes 5 and 6 may be mounted so as to be
engaged with and disengaged by other engaging means such as slidingly engaged in the vertical
direction, engaging with a link member, or the like.
[0029]
Although the input is made to the center unit body 2 from the DVD player, the present invention
is not limited to this, and the input may be made to the center unit body 2 from another disc
player such as an LD (laser disc) player or a CD (compact disc) player. Of course.
[0030]
5.1
Although the ch decoder 26 is provided in the center unit body 2, the present invention is not
limited to this, and the 5.1 ch decoder 26 may be provided in the woofer unit 3.
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Furthermore, although the power amplifier 28 is provided in the woofer unit 3, the present
invention is not limited to this, and the power amplifier 28 may be provided in the center unit
body 2.
[0031]
As described above, according to the present invention, the left and right surround speakers are
mounted on the left and right sides of the center unit so as to be engageable and disengageable
by the engaging means. It can be integrated, integrated and stored securely.
Furthermore, design uniformity at the time of storage can be taken, and the aesthetics can be
improved clearly.
[0032]
In addition, when the left and right surround speakers are separated from the center unit, the left
and right surround speakers can be freely disposed, the degree of freedom of arrangement can
be increased, and the sense of reality can be further enhanced.
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