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JP2016116093

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DESCRIPTION JP2016116093
Abstract: To provide a speaker device capable of reproducing unique sound. In a speaker device,
an outer housing and an inner housing are arranged substantially concentrically, and a sound
absorbing material is disposed in the inner housing. According to the speaker device 1, the sound
absorbing material 9 in the inner casing 7 can make the sound in the internal space 7 </ b> A not
resonate. Further, in the speaker device 1 of the present invention, the outer space 6 between the
metal outer housing 3 and the metal inner housing 7 can make the sound resonating with the
sound here. Then, the non-resonant sound emitted from the inner space 7A and the resonating
sound emitted from the outer space 6 can be synthesized to emit a unique sound. [Selected
figure] Figure 2
Speaker device
[0001]
The present invention relates to a speaker device, and more particularly to a speaker device
provided with an outer housing and an inner housing.
[0002]
As the speaker device, those having a box-like or spherical-like shape are widely known.
However, in these speaker devices, there are cases where phase characteristics and the like are
disturbed, and there are cases where faithful reproduction of the original sound wave is difficult.
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Therefore, various speaker devices have been developed to more faithfully reproduce the source
sound wave. For example, it is a speaker apparatus which has a cylindrical-shaped housing ¦
casing (for example, refer patent document 1). According to this speaker device, the
reproducibility of sound is said to be improved. By the way, the speaker device is not only
required to reproduce the original sound faithfully. In other words, people who listen to sound
have various sensitivities depending on the person, and at present there is always a search for a
speaker device that reproduces an unprecedented unique sound.
[0003]
Japanese Patent Application Publication No. 2001-224089
[0004]
The present invention is made in view of the above-mentioned present situation, and an object of
the present invention is to provide a speaker device which can reproduce original sound.
[0005]
In order to solve the above-mentioned problems, the invention according to claim 1 comprises a
cylindrical outer housing, a speaker unit attached near the upper end of the outer housing, and
the inside of the outer housing. It is a speaker apparatus provided with the cylindrical inner case,
Comprising: The said outer case and the said inner case are arrange ¦ positioned substantially
concentrically, A sound absorbing material is distribute ¦ arranged in the said inner case A
speaker device characterized in that
[0006]
The invention according to claim 2 is the speaker device according to claim 1, wherein a space is
formed between the outer housing and the inner housing.
[0007]
The invention according to claim 3 is characterized in that the sound emitted from the inner case
and the sound emitted from the cavity between the outer case and the inner case are synthesized.
It is a speaker apparatus of Claim 1 or 2.
[0008]
In the invention according to claim 4, the diaphragm of the speaker unit is disposed to face
upward, and a sound reflecting portion is provided above the diaphragm at a predetermined
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distance from the diaphragm, and the outer casing The speaker device according to any one of
claims 1 to 3, wherein an upper end of the at least one reflection portion and the reflection
portion are connected by a connection portion.
[0009]
The speaker device according to any one of claims 1 to 4, wherein the outer casing is mainly
made of metal, and the inner casing is mainly made of metal. It is.
[0010]
The invention according to claim 6 is the speaker device according to any one of claims 1 to 5,
wherein the reflecting portion is provided with a resin-made reflecting plate.
[0011]
The invention according to claim 7 is such that the connecting portion gradually widens upward
in the middle than in the middle, and the connecting portion gradually goes downward in the
middle than the middle. The speaker device according to any one of claims 4 to 6, wherein the
speaker device according to any one of claims 4 to 6, wherein the outer shape of the connecting
portion is a curved line.
[0012]
The invention according to claim 8 is the speaker device according to any one of claims 4 to 7,
characterized in that only one connecting portion is formed.
[0013]
The invention according to claim 9 is characterized in that, of the outer housing, a seat portion to
which the frame of the speaker unit is attached is configured using a metal which is not attracted
to a magnet. 8 is the speaker device according to any one of 8;
[0014]
A speaker device according to the present invention includes a tubular outer casing, a speaker
unit attached near the upper end of the outer casing, and a tubular inner casing provided inside
the outer casing. It is an apparatus.
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The outer housing and the inner housing are disposed substantially concentrically, and a sound
absorbing material is disposed in the inner housing.
According to the present speaker device, the sound absorbing material in the inner casing can
change the sound, and can reproduce its own sound.
[0015]
In addition, when the space between the outer housing and the inner housing is hollow, the
sound of the hollow portion and the sound in the inner housing can be different.
[0016]
In addition, if the sound emitted from the inner case and the sound emitted from the cavity
between the outer case and the inner case are synthesized, the sound synthesis makes it possible
to produce a unique sound. Become.
[0017]
In addition, the diaphragm of the speaker unit is disposed to face upward, and a sound reflecting
portion is provided above the diaphragm at a predetermined distance from the diaphragm, and
the upper end of the outer casing and the reflecting portion are connected to each other The
following effects are achieved when connected by:
That is, in this case, the sound emitted upward from the diaphragm can be reflected and diffused
by the reflection plate.
[0018]
Further, the outer casing is mainly made of metal, and when the inner casing is mainly made of
metal, the outer casing is more easily reflected than in the case of a wooden or resin casing and
has its own sound.
[0019]
Further, in the case where the reflection portion is provided with a resin reflection plate, the
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weight of the reflection portion can be made lighter than that of metal, so that the weight balance
of the speaker device is improved.
[0020]
In addition, the connecting portion is configured such that the width gradually increases upward
from the middle, and the connecting portion is configured such that the width gradually extends
downward from the middle, When the outline is a curved line, the following effects can be
obtained.
In general, in the case of a square connection part, the sound is likely to be disturbed when it
spreads, but in the case where the connection part is in the form of a curve whose width
gradually expands like this, it is difficult to disturb the spread of sound.
In addition, when the connecting part has such a form, the designability is high.
[0021]
Moreover, when only one connection part is formed, it is hard to be disturbed when a sound
spreads.
[0022]
Moreover, when the seat part to which the frame of a speaker unit is attached among an outer
case is comprised using the metal which can not be attracted to a magnet, attachment of a
speaker unit is easy.
[0023]
The invention will be further described in the following detailed description referring to the nonlimiting examples of exemplary embodiments according to the invention and with reference to
the several figures referred to, but like reference numerals in the drawings. Similar parts are
shown throughout the several figures.
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It is a figure (front view) showing typically the speaker apparatus concerning an example.
It is an explanatory view which fractured a part of speaker device concerning an example.
It is explanatory drawing (perspective view) which shows the outer side housing ¦ casing of the
speaker apparatus based on an Example, and an inner side housing ¦ casing.
It is an explanatory view (perspective view) showing the inner case of the speaker apparatus
concerning an example.
It is explanatory drawing (perspective view) which shows the outer side housing ¦ casing of the
speaker apparatus based on an Example.
It is a principal part expanded sectional view of a speaker apparatus concerning an example.
It is an explanatory view (a front view) showing the upper case of the outside case in the speaker
apparatus concerning an example.
It is an explanatory view showing the outside case in the speaker apparatus concerning an
example.
It is an explanatory view (exploded perspective view) showing the upper case of the outside case
in the speaker apparatus concerning an example.
It is an explanatory view (back view) showing the upper case of the outside case in the speaker
apparatus concerning an example.
It is an explanatory view (bottom view) showing the upper case of the outside case in the speaker
apparatus concerning an example.
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It is an explanatory view (side view) showing the upper case of the outside case in the speaker
apparatus concerning an example. It is explanatory drawing (side view) which shows the
installation state of the speaker apparatus which concerns on an Example.
[0024]
The matter set forth herein is illustrative and is for the purpose of illustrating the embodiments
of the invention and is intended to provide the most effective and easily understood explanation
of the principles and conceptual features of the invention. It is stated for the purpose of
providing what seems to be. In this respect, it is not intended to show the structural details of the
present invention beyond what is necessary for a fundamental understanding of the present
invention, and some forms of the present invention will It will be apparent to those skilled in the
art how it may be embodied in practice.
[0025]
The speaker device (1) according to the present embodiment includes a cylindrical outer casing
(3), a speaker unit (5) attached to the upper end of the outer casing (3), and an inner side of the
outer casing (3) And a cylindrical inner housing (7). The outer housing (3) and the inner housing
(7) are arranged substantially concentrically. And in the inside case (7), a sound absorbing
material (9) is disposed.
[0026]
The material of the outer casing (3) is not particularly limited, and can be selected as appropriate.
For example, it can be made of metal. Further, a part of the outer casing (3) may be made of a
material different from that of the other parts. Of the outer housing (3), the seat portion (3A) to
which the frame (5A) of the speaker unit (5) is attached is preferably made of metal that can not
be attracted to the magnet. The material of the inner case (7) is not particularly limited, and can
be selected as appropriate. For example, it can be made of metal. Further, a part of the outer
casing (3) may be made of a material different from that of the other parts.
[0027]
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The sound absorbing material (9) is not particularly limited and can be appropriately selected.
For example, a glass wool based sound absorbing material, a coarse felt felt based sound
absorbing material, a synthetic fiber based sound absorbing material such as acetate or
polyamide (nylon), a urethane based sound absorbing material, a wool based sound absorbing
material or the like can be used.
[0028]
A sound absorbing material may be disposed between the outer housing (3) and the inner
housing (7), but this portion is preferably hollow.
[0029]
Preferably, the sound emitted from the inner housing (7) and the sound emitted from the cavity
between the outer housing (3) and the inner housing (7) are synthesized.
In this case, it is preferable to provide a synthesis chamber (11) for synthesis. This is because the
sound synthesis can be performed surely by providing the synthesis room (11).
[0030]
The diaphragm (5B) of the speaker unit (5) is usually arranged to face upward. Further, in the
present embodiment, it is preferable that a sound reflecting portion 13 be provided at an upper
side of the diaphragm (5B) at a predetermined distance. By providing the reflection portion (13),
it is possible to diffuse the sound. In this case, the upper end of the outer casing (3) and the
reflecting portion (13) are connected by the connecting portion (15).
[0031]
The material of the reflective portion (13) is not particularly limited, and can be selected as
appropriate. For example, it can be made of resin. In addition, the form of the reflective portion
(13) is not particularly limited. The reflective portion (13) can, for example, be configured to
have a conical portion that protrudes downward. It is because the sound of diaphragm (5B) can
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be diffused efficiently if it is shape which has a cone part. A specific form is a form in which a
cone is attached to the bottom of a cylinder. In addition, it is preferable that a reflection part (13)
is solid. This is because when the reflective portion (13) is hollow, the efficiency of reflection
tends to decrease. In the case of a solid, it is preferable to use a resin. This is because if the solid
structure made of metal is heavy, the weight balance of the speaker device (1) becomes worse.
[0032]
The form of the connection part (15) is not particularly limited, and can be selected
appropriately. Further, the number of connecting portions (15) is not particularly limited, and
may be singular or plural. The connecting portion (15) is preferably singular. It is preferable that
the connecting portion (15) has a form in which the width gradually widens upward from the
middle, and a form in which the width gradually widens downward from the middle. It is
preferable that the connecting portion (15) further has a curved outline. It is because it will
become difficult to inhibit the spread of sound if a connection part (15) is such a form. Moreover,
it is because the designability of a connection part (15) becomes high. Moreover, it is preferable
that the connection part (15) is distribute ¦ arranged to the back side of a speaker apparatus (1)
among the upper ends of an outer side housing ¦ casing (3). When the connection portion (15) is
disposed at this position, the sound emitted to the front side is not blocked by the connection
portion (15).
[0033]
In the speaker device (1) according to the present embodiment, the outer housing (3) and the
inner housing (7) are arranged substantially concentrically, and a sound absorbing material (in
the inner housing (7) 9) are arranged. According to this speaker device (1), the sound absorbing
material (9) in the inner case (7) can change the sound, and can reproduce its own sound.
[0034]
In addition, the code ¦ symbol in the parenthesis of each structure described by the said
embodiment shows the correspondence with the specific structure as described in the Example
mentioned later.
[0035]
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Hereinafter, the present invention will be more specifically described by way of examples with
reference to the drawings.
Embodiment 1 (1) Configuration of Speaker Device The speaker device 1 according to this
embodiment includes a cylindrical outer housing 3, a speaker unit 5 attached near the upper end
of the outer housing 3, and an outer housing And a cylindrical inner case 7 provided on the inner
side. The outer housing 3 and the inner housing 7 are arranged substantially concentrically. The
sound absorbing material 9 is disposed in the inner case 7.
[0036]
As shown in FIG. 1, the speaker device 1 according to the present embodiment is a longitudinally
long speaker device 1 as a whole. The outer housing 3 includes an upper housing 17 and a lower
housing 19, both of which are detachably assembled by fastening members such as screws (not
shown). As the outer casing 3, a circular pipe of a general structural rolled steel material (SS
material) having an outer diameter of 100 mm to 160 mm and a thickness of 3 to 4 mm is used.
As shown in FIG. 7, the upper housing 17 is an assembled body 21 assembled integrally with the
reflecting portion 13 via the connecting portion 15.
[0037]
The upper housing 17 is formed by processing one cut out from a circular pipe. As shown in
FIGS. 8 and 9, a stainless steel seat portion 3A is attached to the upper housing 17, and a frame
5A of the speaker unit 5 is assembled to the seat portion 3A. As shown in FIG. 9, the reflecting
portion 13 includes an annular portion 13A and a resin reflection plate 13B fixed in a state of
being fitted to the inside of the annular portion 13A. The reflecting plate 13B is made of, for
example, an acrylic resin. As shown in FIG. 9, a weir 23 is formed at the upper end of the
reflection plate 13B, and the weir 23 is hooked on the top of the annular portion 13A. The ridges
23 prevent the reflection plate 13B from falling off the annular portion 13A.
[0038]
As shown in FIGS. 10 and 13, an attachment portion 25 for attaching a fall prevention member
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for preventing a fall is formed on the back side of the upper housing 17. As shown in FIG. 11, a
central hole 27 communicating with the inner space 7A of the inner housing 7 and a plurality of
peripheral holes 29 surrounding the periphery of the central hole 27 are formed on the lower
surface of the upper housing 17. ing. The peripheral hole 29 is in communication with the outer
space 6 formed between the outer housing 3 and the inner housing 7. The central hole 27 has a
substantially circular shape. The center hole 27 is formed with a bridge portion 31 connecting
the edge while passing through the center thereof. The bridge portion 31 has a cross shape. The
bridge portion 31 has a function of stopping the sound absorbing material 9 disposed inside the
inner case 7 from coming out from above. The peripheral holes 29 are substantially circular.
[0039]
As shown in FIG. 12, in a side view, the distance L1 from the lower end of the reflecting plate
13B of the reflecting portion 13 to the upper end of the upper housing 17 is smaller than the
depth L2 of the speaker unit 5. By doing this, the speaker unit 5 can be easily removed to
prevent inadvertent disassembly.
[0040]
The inner case 7 has a tubular shape as a whole, as shown in FIG. For the inner casing 7, a
circular pipe of general structural rolled steel (SS material) having an outer diameter of 70 mm to
90 mm and a thickness of 1 to 2.5 mm is used. An upper flange portion 33 is formed in the
vicinity of the upper end portion of the inner case 7. The upper collar portion 33 has an annular
shape. A plurality of through holes 35 are formed in the upper collar portion 33 at positions
corresponding to the peripheral holes 29 of the upper housing 17 of the outer housing 3. The
through hole 35 has a substantially circular shape. In the vicinity of the lower end portion of the
inner case 7, as shown in FIG. 4, a lower flange portion 37 is formed. The lower heel portion 37
has an annular shape. In the lower flange portion 37, a plurality of through holes 39 are formed
at positions substantially directly below the through holes 35 of the upper flange portion 33. The
through hole 39 has a substantially circular shape.
[0041]
A part of the sound emitted from diaphragm 5B of speaker unit 5 is introduced into outer space
6 between outer housing 3 and inner housing 7 through peripheral hole 29 and through hole 35,
and through through hole 39 , And is introduced into the synthesis chamber 11 shown in FIG.
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[0042]
As shown in FIG. 4, the lower end of the inner case 7 is closed by a plate 45 made of metal or the
like in which a plurality of holes 43 are formed.
The hole 43 of the plate member 45 has a substantially circular shape with a size (for example, a
diameter of 2 to 10 mm) that does not allow the sound absorbing material 9 to pass
therethrough, and prevents the sound absorbing material 9 from falling. Also has a function of
introducing the A part of the sound emitted from the diaphragm 5B of the speaker unit 5 is
introduced into the inner space 7A in the inner casing 7 through the center hole 27 and passes
through the hole 43 of the plate 45 to the synthesis chamber 11 shown in FIG. It is supposed to
be introduced.
[0043]
The synthesis chamber 11 is located below the inner case 7 as shown in FIG. The synthesis
chamber 11 communicates with both the inner space 7A and the outer space 6 at its upper part.
A plurality of through holes 47 are formed below the synthesis chamber 11, and sound is emitted
from the through holes 47.
[0044]
(2) Operation of Speaker Device Next, the operation of the speaker device 1 configured as
described above will be described. The sound emitted upward from the speaker unit 5 is reflected
by the reflection unit 13. At this time, since the reflecting plate 13B of the reflecting portion 13
has a conical portion projecting downward, the sound diffuses so as to spread 360 °.
[0045]
On the other hand, the sound emitted downward from the speaker unit 5 is introduced into the
inner space 7A and the outer space 6. Then, the non-resonant sound in the inner space 7A and
the resonating sound in the outer space 6 are synthesized in the synthesis chamber 11 and
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emitted from the through hole 47.
[0046]
(3) Effects of the Embodiment In the speaker device 1 of the present embodiment, the outer
housing 3 and the inner housing 7 are arranged substantially concentrically, and the sound
absorbing material 9 is disposed in the inner housing 7. It is done. According to the speaker
device 1, the sound absorbing material 9 in the inner casing 7 can make the sound in the internal
space 7 </ b> A not resonate. Further, in the speaker device 1 of the present embodiment, the
outer space 6 between the metal outer housing 3 and the metal inner housing 7 can make the
sound resonating with this sound. Then, the non-resonant sound emitted from the inner space 7A
and the resonating sound emitted from the outer space 6 can be synthesized to emit a unique
sound.
[0047]
Further, in the speaker device 1 of the present embodiment, the diaphragm 5A of the speaker
unit 5 is disposed to face upward, and a sound reflecting portion 13 is provided above the
diaphragm 5B at a predetermined distance. There is. The sound emitted upward from the
diaphragm 5B is reflected by the reflection plate 13B and diffused.
[0048]
In the speaker device 1 of the present embodiment, since both the sound synthesized in the
synthesis chamber 11 and the sound reflected by the reflection unit 13 are emitted, a unique
sound not found in the conventional speaker device 1 is produced.
[0049]
Further, in the speaker device 1 of the present embodiment, since the reflection portion 13 is
provided with the resin reflection plate 13B, the weight of the reflection portion 13 can be made
lighter than that of metal, and the weight balance of the speaker device 1 can be improved. Get
better.
[0050]
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13
In addition, the connecting portion 15 for connecting the reflecting portion 13 has a form in
which the width gradually widens upward from the middle, and the width gradually widens
downward from the middle The outline is a curved line.
In general, the connecting portion 15 having a square shape is likely to be an obstacle when the
sound spreads, but in the present embodiment, since the outer shape of the connecting portion
15 is a curve, it is difficult to disturb the spread of the sound.
Moreover, since the connection part 13 is provided in the back side of the speaker apparatus 1, it
is hard to disturb the sound which goes to the listener of a front.
[0051]
Further, in the speaker device 1 of the present embodiment, a cross-shaped bridge portion 31 is
disposed at a position above the center hole 7B of the inner casing 7. With such a bridge 31, the
sound absorbing material 9 inside the inner case 7 can be stopped from coming out from above.
[0052]
In the present invention, the present invention is not limited to the above-described embodiment,
and can be variously modified within the scope of the present invention according to the purpose
and application.
[0053]
In the first embodiment, the bridge portion 31 has a cross shape, but the shape of the bridge
portion 31 is not particularly limited.
It may be a single bridge.
[0054]
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In the first embodiment, an example using a circular pipe of a general structural rolled steel
material (SS material) having an outer diameter of 100 mm to 160 mm and a thickness of 3 to 4
mm has been described as the outer housing 3. Moreover, the example using the circular pipe of
the general-structure rolled steel materials (SS material) whose outer diameter is 70 mm-90 mm
and whose thickness is 1-2.5 mm was mentioned and demonstrated to the inner side housing ¦
casing 7. FIG. In the present invention, the outer diameter, thickness, and material of the outer
housing 3 and the inner housing 7 are not particularly limited, and can be selected appropriately.
However, it is preferable that the thickness of the inner case 7 be thinner than the thickness of
the outer case 3. In this way, it is possible to make it sound like a unique sound.
[0055]
The foregoing examples are for illustrative purposes only and are not to be construed as
limitations on the present invention. While the present invention has been described by way of
exemplary embodiments, it is understood that the words used in the description and illustration
of the present invention are illustrative and exemplary rather than restrictive. Changes may be
made within the scope of the appended claims without departing from the scope or spirit of the
invention in its form, as detailed herein. While the specification herein has been directed to
specific structures, materials, and examples, the present invention is not intended to be limited to
the particulars disclosed herein, but rather is as follows: It shall cover all functionally equivalent
structures, methods, and uses within the scope.
[0056]
The invention is not limited to the embodiments detailed above, but various modifications or
alterations are possible within the scope of the claims of the invention.
[0057]
It is widely used as a technology related to a speaker device.
[0058]
1; speaker device 3; outer housing 3A; seat portion 5; speaker unit 5A; frame 5B; diaphragm 6;
outer space 7; inner housing 7A; inner space 7B; center hole 9; sound absorbing material 11;
Reflecting portion 13A; Ring portion 13B; Reflecting plate 15; Connecting portion 17: Upper case
19; Lower case 21; Assembled body 23; Plate 25; Mounting portion 27; Center hole 29;
Surrounding hole 31; Bridge portion 33 Upper collar portion 35; through hole 37; lower collar
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portion 39; through hole 43; hole 45; plate member 47; through hole
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