DESCRIPTION JP3167435

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DESCRIPTION JP3167435
Abstract: [Problem] To provide a guitar case which can be easily applied to an existing guitar
case to enhance versatility and to enhance design freedom in layout. A speaker unit having one
or more speakers 4a and 4b disposed in a panel unit 2n of a case main body 2 in which a neck
portion Gn of a guitar G is accommodated and a back surface Gnr of the neck portion Gn faces.
And at least an externally operable operation portion for adjustment 5 which is disposed in the
case body portion 2 located in the vicinity of the speaker portion 4 and connected to the
amplifier portion 3. Furthermore, a connector unit 6 including a microphone jack disposed in the
case body 2 and connected to at least a microphone connected to the input unit of the amplifier
unit 3, and a power supply unit 7 for supplying DC power to the amplifier unit 3 Prepare.
[Selected figure] Figure 1
ギターケース
[0001]
The present invention relates to a guitar case integrally provided with at least an amplifier unit
and a speaker unit connected to the amplifier unit in a case body.
[0002]
Generally, people called street musicians perform live performances using acoustic guitars in
parks and street corners.
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At this time, in order to increase the singing voice and the guitar sound, a speaker system
equipped with an amplifier unit, a speaker unit, etc. is required in addition to the guitar, but when
using the speaker system, the entire equipment increases and The settings, including the
securing of the power supply, may be difficult, and an operator of the equipment may be
required. In addition, there is a problem that extra storage space is taken even during storage.
[0003]
Therefore, the applicant has already proposed a musical instrument case for solving this problem
according to Patent Document 1. This musical instrument case (guitar case) is a guitar case
provided with a case main body for housing a musical instrument, an amplifier for processing at
least a sound signal obtained from the musical instrument, and a speaker connected to the
output of the amplifier The main body of the case is also used as a cabinet for mounting at least
the amplifier unit and the speaker unit, thereby eliminating the need for a separate loud-speaking
device attached to an instrument such as a guitar and the like, and causing trouble during
transportation. In addition to being able to substantially halve storage space at the time of
storage and storage effort, in particular, the amplifier unit and the speaker unit are attached by
utilizing the empty space created in the case main unit by the curved or protruding portions of
the instrument. In particular, the shape of the conventional case can be used as You can avoid an
increase in the size of the guitar case due to be assembled mosquitoes part.
[0004]
JP 2002-287745 A
[0005]
However, the guitar case (musical instrument case) of Patent Document 1 described above also
has the following problems to be solved.
[0006]
First, the guitar case of Patent Document 1 arranges the speaker portion in the space formed by
the concave portions on both side surfaces of the guitar body, so it is not necessarily desirable
from the viewpoint of versatility.
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That is, in the case of the guitar case, depending on the concave portion of the guitar body, a
sufficient space may not be formed in many cases, and a sufficient space for arranging the
speaker portion may not be secured.
For this reason, in particular, in many cases, it can not be applied to the existing guitar case, and
there is a problem in versatility.
[0007]
Second, the position of the speaker unit is located below, and the position is specified by the
shape of the guitar, and the space for arranging the amplifier unit can not be secured near the
speaker unit, so both the amplifier unit and the speaker unit The design freedom for the entire
layout including the above becomes low, and the wiring connecting the amplifier part and the
speaker part becomes long.
[0008]
The present invention aims to provide a guitar case which solves the problems existing in such
background art.
[0009]
In order to solve the above-described problems, the present invention provides a guitar G when
forming the guitar case 1 integrally including at least the amplifier unit 3 and the speaker unit 4
connected to the output unit 3 e of the amplifier unit 3. A speaker unit 4 having one or more
speakers 4a and 4b disposed in the panel unit 2n of the case main unit 2 in which the neck
portion Gn of the case 2 is accommodated and the back surface Gnr of the neck portion Gn is
opposed; At least the externally operable operation unit 5 connected to the amplifier unit 3 and
the input unit of the amplifier unit 3 The connector unit 6 includes at least the microphone jacks
6a to which the microphones Ma can be connected, and the power supply unit 7 that supplies DC
power to the amplifier unit 3 It is characterized in.
[0010]
In this case, according to a preferred aspect of the invention, the connector 6 can be provided
with one or more of the voice microphone jack 6a, the guitar microphone jack 6b, and the
external sound source input jack 6c, and a processed signal obtained by processing the input
signal. An external output terminal 6d for outputting the
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Further, the power supply unit 7 can include one or more of a battery, batteries 7a1 ... (7b1 ...), a
solar battery, and an input jack 6p of an external power supply.
Furthermore, the case main body 2 can be provided with a folding stand 8 for raising the case
main body 2.
[0011]
According to the guitar case 1 which concerns on this invention which has such a structure, the
following remarkable effects are show | played.
[0012]
(1) The speaker unit 4 having one or more speakers 4a and 4b is disposed in the panel unit 2n of
the case main unit 2 in which the neck portion Gn of the guitar G is accommodated and the back
surface Gnr of the neck portion Gn faces. Since the present invention is provided, the present
invention can be easily applied even to an existing guitar case, and the versatility can be
enhanced.
In particular, in the case of the guitar case 1 accommodating the acoustic guitar G, the structure
of the guitar G tends to create a space, which can be applied easily and reliably.
[0013]
(2) When the guitar case 1 is erected, the position of the speaker portion 4 can be set to a
relatively high position, and the position (height) can be arbitrarily selected.
Moreover, the layout space of the amplifier unit 3 can be easily secured, and the design freedom
on the layout of the amplifier unit 3 and the speaker unit 4 can be enhanced, and the amplifier
unit 3 is disposed at the close position. Thereby, the connection wiring of the amplifier unit 3 and
the speaker unit 4 can be shortened.
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[0014]
(3) According to a preferred embodiment, the connector section 6 is provided with one or more
of the voice microphone jack 6a, the guitar microphone jack 6b, and the external sound source
input jack 6c, and an external output terminal for outputting a processing signal obtained by
processing an input signal. If 6d is provided, both the guitar sound and the voice (singing voice)
can be amplified, so that it is possible to realize an optimal live by setting the relative volume
balance between the guitar sound and the voice. Also, the input signals from the audio
microphone jack 6a, the guitar microphone jack 6b, and the external sound source input jack 6c
are subjected to adjustment processing and mixing processing, and output from the external
output terminal 6d. It can also be used as a monitor when playing on the stage. In this case, in
particular, the player can obtain a good monitor sound by performing adjustment processing and
mixing processing without relying on the sound operator.
[0015]
(4) According to a preferred embodiment, if one or more of battery, battery 7a1 ... (7b1 ...), solar
battery, input jack 6p of external power supply is included in power supply unit 7, a power
supply corresponding to the place of use etc. Since selection is possible, an appropriate power
supply can be reliably secured.
[0016]
(5) If the foldable stand 8 for making the case body 2 stand up is provided in the case body 2
according to a preferred embodiment, both the fold stand 8 and the case body 2 make the case
body 2 The case body 2 can be easily and stably erected at an arbitrary angle.
[0017]
The external appearance front view of the guitar case according to the preferred embodiment of
the present invention, the external appearance side view of the same guitar case, the sectional
side view of the same guitar case, the electric circuit block diagram disposed in the same guitar
case, and the same guitar case Side view showing the state of standing up using a tatami stand,
usage condition explanatory view of the same guitar case,
[0018]
Next, an example of a preferred embodiment according to the present invention will be described
and described in detail based on the drawings.
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[0019]
First, the configuration of the guitar case 1 according to the present embodiment will be
described with reference to FIGS. 1 to 4.
[0020]
The guitar case 1 includes a case body 2 that accommodates the guitar G.
The illustrated guitar G is an acoustic guitar.
As shown in FIG. 2, the case body 2 includes a storage case 21 and a lid 22 that opens and closes
with respect to the storage case 21 via a hinge, and the storage case 21 and the lid 22 Each is
formed as a hard case by a rigid material such as plastic.
Further, as shown in FIG. 3, protective materials 24 such as cushioning materials are laid on
substantially the entire inner surface of the storage case portion 21 and the lid portion 22,
respectively.
In the case body 2, a plurality of (four in the illustrated example) lock keys 25... And a handle 26
are shown.
Thus, the basic configuration of the case body 2 is the same as a known guitar case. In addition,
27 indicates an accessory case (pocket) capable of accommodating replacement strings and the
like, and although not shown, it is provided with necessary functional components such as hooks
for shoulder straps.
[0021]
On the other hand, on the back surface of the case body 2, that is, on the outer surface of the lid
22, a folding stand 8 for raising the case body 2 is provided. As shown in FIG. 3, the foldable
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stand 8 includes a stand main body 8m and a bracket 8b rotatably supporting the upper end of
the stand main body 8m, and as shown in FIG. The stand main body 8m can be spread at a
predetermined angle with respect to the outer surface of the lid 22, and the case main body 2
can be erected, and when not in use, it can overlap the outer surface of the lid 22 as shown in
FIG. It can be folded. In addition, the shape of the illustrated stand main-body part 8m is reverse
V shape seeing from a back surface direction. In addition, if necessary, the position of the stand
12 may be lockable in the use position and the non-use position. If such a folding stand 8 is
provided, the case body 2 can be erected by both the folding stand 8 and the case body 2, so that
the case body 2 can be easily and stably made at any angle. Can stand up.
[0022]
On the other hand, a loudspeaker circuit C of the electrical system shown in FIG. As shown in the
figure, the loudspeaker circuit C roughly includes a connector 6, an amplifier 3, an adjusting
operation unit 5, a speaker 4, and a power supply 7.
[0023]
The speaker unit 4 is configured using two speakers 4a and 4b, and the two speakers 4a and 4b
have a back surface Gnr of the neck portion Gn at a portion where the neck portion Gn of the
guitar (acoustic guitar) G is accommodated. It arrange | positions in the panel part 2n of the case
main body part 2 which opposes. In the guitar (acoustic guitar) G, since the neck Gn usually
extends from the vicinity of the sound hole of the body Gb, an elongated space S exists in the
case body 2 on the back Gnr side of the neck Gn. For this reason, the speakers 4a and 4b are
attached using this space S. At the time of mounting, two holes are arranged in the panel portion
2n, and the speakers 4a and 4b are accommodated in the two holes, respectively, and attached to
the panel portion 2n from the outside by using a fixing tool such as a screw. The front sides of
the speakers 4a and 4b are covered with grills 28a and 28b having a plurality of slits or small
holes, and the back sides of the speakers 4a and 4b are covered with a box-like speaker
protection cover 29. The speaker protective cover 29 is attached to the inside of the panel
portion 2n. Furthermore, the adjustment operation unit 5 is provided with a jack capable of
attaching and detaching the headphone 4 h.
[0024]
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At least the adjustment operation portion 5 that can be operated from the outside is disposed in
the case main body portion 2 located in the vicinity of the speaker portion 4. In this case, when
the panel unit 2n in which the speaker unit 4 is disposed is the front, the adjustment operation
unit 5 is disposed in the panel unit 2s located on the side surface. The adjustment operation unit
5 includes, for example, a plurality of adjustment knobs 5c including volume adjustment, sound
quality adjustment (high-pitched adjustment, bass adjustment, etc.), sound effect adjustment, etc.,
and various switches including a changeover switch and a selection switch. Type 5s, and further,
various lamps 5e are provided.
[0025]
Further, the connector portion 6 is disposed on the panel portion 2s located at the lower portion
when the case main body portion 2 is erected. The connector portion 6 is provided with one or
more of a voice microphone jack 6a, a guitar microphone jack 6b, and an external sound source
input jack 6c, and an external output terminal 6d for outputting a processing signal obtained by
processing an input signal. In this case, for example, a handsfree type voice microphone Ma as
shown in FIG. 6, a guitar microphone (pickup) built in the guitar G or an external microphone Mb
(FIG. 4) can be connected to the microphone jacks 6a. As a result, both the guitar sound and the
voice (singing voice) can be amplified, so that it is possible to realize an optimal live performance
by setting the relative volume balance between the guitar sound and the voice. On the other
hand, an external sound source 42 such as a CD player or a karaoke machine can be connected
to the external sound source input jack 6c, and a recording material 43 such as an IC recorder
can be connected to the external output terminal 6d. By providing such a connector portion 6,
the input signals from the audio microphone jack 6a, the guitar microphone jack 6b, and the
external sound source input jack 6c are subjected to adjustment processing and mixing
processing, and output from the external output terminal 6d. It can function as It can also be
used as a monitor when playing on a large stage. In this case, in particular, the player can obtain
a good monitor sound by performing adjustment processing and mixing processing without
relying on the sound operator. The connector portion 6 further includes a general-purpose input
jack 6 e and the like as well as the input jack 6 p of the external power supply 41.
[0026]
Further, a circuit box 30 containing the amplifier unit 3 is attached to the back side of the
adjustment operation unit 5. Therefore, the circuit box 30 can cover both the back side of the
amplifier unit 3 and the adjustment operation unit 5 as illustrated. As shown in FIG. 4, the
amplifier unit 3 includes a tuning meter 31, an input amplifier unit 32, a sound effect generator
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33, an equalizer unit 34, a mixing unit 35, and an output amplifier unit 36. The sound effect
generation unit 33 has a function of performing various signal processing such as stereophonic
conversion (surrounding) of a monaural signal as well as the generation of sound effects. The
equalizer unit 34 has a sound quality adjustment function and a howling prevention function of
each input signal. The mixing unit 35 may be an audio microphone Ma, a guitar microphone
(pickup) Mb or an external microphone Mb. The signals from the external sound source 42 and
the sound effect generator 33 can be respectively adjusted in volume and mixed. Further, the
mixed signal can be recorded by the recording device 43 or can be sent to the external sound
device 44. The output amplifier unit 36 has a function of performing signal amplification
processing. In this case, the wiring connecting the input unit 3i of the amplifier unit 3 and the
connector unit 6 is disposed along the inner surface of the panel unit 2s, and the wiring is
covered by the wiring cover 38. In addition, since wiring is along the inner surface of the panel
part 2s, it does not become an obstacle. Further, speakers 4a and 4b are connected to the output
unit 3e of the amplifier unit 3, respectively. In addition, the amplifier unit 3 may be provided
with an audio signal processing circuit such as a compressor, a limiter, a filter, a gate, and an
expander.
[0027]
On the other hand, a power supply unit 7 for supplying DC power to the amplifier unit 3 is
disposed inside the case main body unit 2. The power supply unit 7 includes two batteries. In this
case, the two batteries may be disposed at the positions 7a1 and 7a2 in FIG. 1 or may be
disposed at the positions 7b1 and 7b2. Also, both may have a total of four batteries. In addition,
as the power supply unit 7, an external power supply 41 that can be input from the abovedescribed input jack 6p of the external power supply can be used, including a dry cell and a solar
cell. These may be one or two or more. (7b1...), Solar cell, input jack 6p of external power supply
in this manner, it is possible to select the power supply corresponding to the place of use etc. As
a result, it is possible to ensure an appropriate power supply. In addition, in FIG. 4, 7 m denotes a
power distribution unit and a charging unit provided in the power supply unit 7, and 7 da and 7
db denote backflow prevention diodes, respectively.
[0028]
Next, the usage method and the function of the guitar case 1 according to the present
embodiment will be described with reference to FIGS.
[0029]
First, the guitar case 1 can basically be used as a normal guitar case that accommodates a guitar
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(acoustic guitar) G.
[0030]
On the other hand, the empty case after taking out the guitar G from the guitar case 1 can be
used as a loudspeaker as it is.
In use, as shown in FIG. 5, the stand body 8m is spread at a predetermined angle with respect to
the outer surface of the lid 22, and the guitar case 1 is erected on the ground E or the like.
Further, as shown in FIG. 6, the handsfree type voice microphone Ma attached to the player H is
connected to the microphone jack 6a via the connection cable La, and the guitar microphone Mb
built in the guitar G is a connection cable Connect to the microphone jack 6b via Lb.
[0031]
Then, if necessary adjustments such as volume adjustment, sound quality adjustment (high tone
adjustment, bass adjustment, etc.), sound effect adjustment, balance adjustment, etc. are
performed using the adjustment operation unit 5, the guitar case 1 serving as a loudspeaker is
used. You can play live.
[0032]
As described above, according to the guitar case 1 according to the present embodiment, the
neck portion Gn of the guitar G is accommodated, and one or two of the panel portion 2n of the
case main portion 2 facing the back surface Gnr of the neck portion Gn Since the speaker unit 4
having the above-described speakers 4a and 4b is disposed, the present invention can be easily
applied even to an existing guitar case, and the versatility can be enhanced.
In particular, in the case of the guitar case 1 accommodating the acoustic guitar G, the structure
of the guitar G tends to create a space, which can be applied easily and reliably. In addition, when
the guitar case 1 is erected, the position of the speaker unit 4 can be set to a relatively high
position, and the position (height) can be arbitrarily selected. Moreover, the layout space of the
amplifier unit 3 can be easily secured, and the design freedom on the layout of the amplifier unit
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3 and the speaker unit 4 can be enhanced, and the amplifier unit 3 is disposed at the close
position. Thereby, the connection wiring of the amplifier unit 3 and the speaker unit 4 can be
shortened.
[0033]
The preferred embodiment has been described above in detail, but the present invention is not
limited to such an embodiment, and the configuration, shape, material, number, and the like of
the details do not deviate from the scope of the present invention. , Can be arbitrarily changed,
added, deleted. For example, since the case body 2 can stand on its own, it is not always
necessary to provide the folding stand 8. Moreover, you may provide the pocket which can
accommodate a musical score, an accessory, etc. in the outer surface of the case main-body part
2 as needed. The neck portion Gn is a concept including a head portion.
[0034]
The guitar case according to the present invention can be used to house a guitar such as an
acoustic guitar and to integrally form a loudspeaker circuit in the case body.
[0035]
1: Guitar case, 2: Case body, 2n: panel, 3: amplifier, 3i: input of amplifier, 3e: output of amplifier,
4: speaker, 4a: speaker, 4b: speaker, 5: adjustment operation unit 6: 6: connector unit 6a:
microphone jack (voice microphone jack) 6b: microphone jack (guitar microphone jack) 6c:
external sound source input jack 6d: external output terminal 7: power supply unit 7a1: battery,
7b1: battery, 6p: external power input jack, 8: folding stand, G: guitar (acoustic guitar), Gn: neck,
Gnr: back of neck, Ma: microphone
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