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JP2016005153

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DESCRIPTION JP2016005153
[PROBLEMS] To provide a speaker device capable of producing a clear sound in a wide range
with a secured volume. SOLUTION: A vibration generating means 4 is provided at an end of a
vibration transmitting means 2, and the vibration generated by the vibration generating means 4
is transmitted to the sound generating body 3 by the vibration transmitting means 2 and radiated
from the sound generating body 3 as sound. Ru. The vibration transmitting means 2 can be
provided with a plurality of sound generating bodies 3 at appropriate positions, and is formed of
a rod-like body having a fiber structure for transmitting vibration. The sound generator 3 is
formed on a curved surface having a fiber structure, and the vibration transfer means 2 is
provided with at least one sound generator 3. [Selected figure] Figure 1
Speaker device
[0001]
The present invention relates to a speaker device.
[0002]
Conventionally, a speaker device is a device that stimulates human hearing and listens to sound,
and after an electric signal is input to a vibration device and converted into vibration by the
vibration device, it is transmitted to a sound generation part and emitted as sound Various
speaker devices are considered.
[0003]
However, in the speaker device disclosed in Patent Document 1 below, the vibration generated
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from the sound source is the same as the paper, which is the speaker provided in the same part
of the rod-shaped member made of wood or bamboo via the rod-shaped member However, there
is a problem that it is only transmitted to the spout member made of expanded polystyrene, and
the tone range is narrow, for example, there is no sound of bass or treble.
[0004]
2009-159248 gazette
[0005]
The present invention has been made in view of the above problems, and an object of the present
invention is to provide a speaker device capable of producing a wide range of sound.
[0006]
In the speaker according to the present invention, the vibration generating means is provided at
the end of the vibration transmitting means, and the vibration generated by the vibration
generating means is transmitted to the sound generating body by the vibration transmitting
means and radiated from the sound generating body as sound. A speaker, wherein the vibration
transmitting means can be provided with a plurality of the sound generating bodies at
appropriate positions and formed by a rod-like body having a fiber structure for transmitting
vibration, and the sound generating body is formed in a curved surface The vibration
transmission means is provided with at least one or more of the sound producing members.
It is preferable that the vibration transmitting means is formed of an air-drying material of a
plant stem, a leaf, a branch, an epidermis, and a woody part, and a groove for detachably
attaching the sound generating body is formed.
The sound generator preferably has a fiber structure.
The speaker device is provided with a vibration generating means at an end of the vibration
transmitting means, and the vibration generated by the vibration generating means is
transmitted to the sound generating body by the vibration transmitting means and radiated from
the sound generating body as a sound. The vibration transmitting means can be provided with a
plurality of the sound generating bodies at appropriate positions and can be formed by a rod-like
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body having a fiber structure for transmitting vibration, and the sound generating body can be
formed into a curved surface having a fiber structure The speaker device is provided with at least
one or more of the sound generating members in the vibration transmitting means, wherein the
vibration generating means is provided with amplification means, and the amplification means is
provided with fixing means, and fixing means It is desirable that a groove or projection
connecting means be provided near the central axis of the vibration for connecting the vibration
transmitting means to the vibration generating means.
The vibration generating means is preferably provided with an amplifying means whose end is
free at the driving body of the vibration.
[0007]
The present invention is a speaker device in which vibration generating means is provided at an
end of the vibration transmitting means, and the vibration generated by the vibration generating
means is transmitted to the sound generating body by the vibration transmitting means and
radiated from the sound generating body as sound. The vibration transmitting means is formed
of a rod-like body having a fiber structure capable of providing a plurality of the sound
generating bodies at appropriate positions and transmitting the vibration, and the sound
generating body is formed in a curved surface, Since the vibration transmitting means is provided
with at least one or more of the above-mentioned sounding bodies, different sound generating
bodies can be attached to the vibration transmitting means according to preference, and music
can be made in the desired range Has the effect of being able to listen to
According to the second aspect of the present invention, the vibration transmitting means is
composed of a plant's stem, leaf, branch, skin, air-drying material of wood part, and a groove for
detachably attaching the sound generator is formed. There is an effect that there is no sound
attenuation and a clear sound comes out. According to the third aspect of the present invention,
in the sound generator having a fiber structure, there is an effect that there is no attenuation of
sound and clear sound is produced. According to the fourth aspect of the present invention, the
vibration generating means is provided at the end of the vibration transmitting means, and the
vibration generated by the vibration generating means is transmitted to the sound generating
body by the vibration transmitting means and radiated from the sound generating body as sound.
In the speaker device, the vibration transmitting means can be provided with a plurality of sound
generating bodies provided at appropriate positions and formed by a rod-like body having a fiber
structure for transmitting vibration, and the sound generating body is a fiber It is a speaker
device which is formed on a curved surface having a structure and in which at least one or more
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sound generating bodies are provided in the vibration transmitting means, wherein the vibration
generating means is provided with an amplifying means and fixed to the amplifying means. A
means is provided, and the fixing means is provided with a groove or projection coupling means
for coupling the vibration transmitting means to the vibration generating means in the vicinity of
the central axis of the vibration. It is those capable of amplifying the instantaneous strong
vibration and ongoing weak vibration, be amplified instantaneous strong vibration has the effect
of not causing vibration cracking (chatter). According to the fifth aspect of the invention, in the
vibration generating means, in the case where the driving body of the vibration is provided with
the amplifying means whose end is free, the vibration generated by the vibrating body is further
amplified and the vibration is strong. Has the effect of generating
[0008]
FIG. 1 is an external perspective view of a speaker device according to a first embodiment of the
present invention. FIG. 2 is an explanatory view showing an example of a vibration transmission
member used in the present invention. FIG. 3 is an explanatory view showing an example of a
sound generator used in the present invention. FIG. 4 is an external perspective view showing an
example of a vibration generating device used in the present invention. FIG. 5 is a cross-sectional
view showing an example of a vibration generator used in the present invention. FIG. 6 is an
external perspective view of the speaker device according to the second embodiment. FIG. 7 is an
external perspective view of the speaker device according to the third embodiment. FIG. 8 is an
external perspective view of a speaker device according to a fourth embodiment. FIG. 9 is an
explanatory view of a speaker device according to a fifth embodiment. FIG. 10 is an explanatory
view of a speaker device according to a sixth embodiment.
[0009]
Hereinafter, a first embodiment of the invention of the speaker according to the present
invention will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, the speaker device
1 according to the first embodiment includes a vibration transfer unit 2, a plurality of sound
generators 3 and a vibration generator 4. The sound generator 3 is formed in three different
shapes 3 (a), 3 (b) and 3 (c), and the range of sound generated by the difference of the curved
surface shape is different, and an appropriate shape selection and an appropriate position are
made. By disposing the speaker in a speaker, it is possible to obtain a speaker having a wide
sound range and a wide directivity of the sound.
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[0010]
The vibration transmission means 2 is formed of a rod-like body having a fiber structure. For
example, it is formed of an air-drying material of plant stems, leaves, branches, epidermis, and
wood parts. By drying the thin, long and strong fiber structure that is naturally produced by the
vitality of plants, the sound transmission is dramatically enhanced. For example, the motion of a
small insect attached when the cut straw or straw is dry can make a loud noise or the
woodpecker can transmit the sound of sticking to the treetop when the woodpecker makes a
burrow in a dead tree A loud sound that resonates with the sound is generated. Moreover, in the
measurement of Young's modulus (deflection strength) of wood, a known test method using a
dent is used as the strength of the fiber structure which is a measure of the deflection strength.
The edge of the felled wood is tapped gently at the end and the nicking sound is measured at the
other end, but it can be said to be a method using the sound transmission characteristics of the
intracellular fiber structure of the wood. . The fiber structure of the plant is provided with the
fixing means 43 when used as the vibration transmitting means 2 since the fiber structure of
drying contains the appropriate air layer inside and enhances the sound transmission
characteristics without being affected by excess moisture. By coming into contact with the
coupling hole 44, the vibration generated from the actuator 40 of the vibration generating means
4 is transmitted to the amplifying means 42 by the driving means 41 and amplified, and the
amplified strong vibration is transmitted to the fixing means 43, and the vibration transmitting
means In the second embodiment, since the sound is transmitted while being amplified inside the
fiber structure by being coupled to the fixing means 43, even if a plurality of sound generators 3
are provided, the transmission loss is small and vibration can be transmitted to the end.
[0011]
When a stem or the like having a low bending strength of plants and the like is used as the
vibration transmitting means 2, the inside may be reinforced with a metal or plastic core
material. In addition, it may be a product in which glass fibers such as carbon fiber or FRP are
reinforced, or a sheet or fabric may be reinforced and formed in a rod shape, but preferably it is
produced by natural generation. It is better to use the natural fiber material formed. Natural fiber
materials include stems and leaves of grasses, branches and skins, solid wood of wood materials,
solid wood, laminated wood, plywood, wood fiber board, bamboo fibers and branches of bamboo,
etc. is not. More preferably, air-dried wood is good. In this case, the rod-like body has sufficient
strength to support the sound generating body, and the strong vibration transmitted from the
vibration generating means 4 is generated as sound by a suitable internal loss (stress) inside the
fiber structure of the vibration transmitting means 2. Since the vibration is transmitted to the end
while emitting, there is an effect that there is no attenuation of the sound as a whole while
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resonating with the sound emitted as sound from the sound generator and a clear sound is
produced.
[0012]
More preferably, the air-drying material of tree branches is good. In this case, the fiber structure
of the portion branched by the natural growth power is complicated including the core of the
tree but the fibers are continuous without interruption from the original to the tip, so as shown in
FIG. Grooves for attaching the body can be provided accordingly. By way of example, an oblique
groove 24 can be provided at any position of the branch, a groove 23 can be provided in the
branched tine, and a groove 22 can be provided at the bifurcated branch point, and the end of
the branch By providing the groove 21 in the part, the flow of vibration transmission can be
received. Moreover, since the coupling means 20 for inserting in the coupling hole 44 (FIG. 4 and
FIG. 5) of the fixing means 43 (FIG. 4 and FIG. 5)) is formed at one end, The vibration
transmission means 2 is integrated with the vibration generation means 4 through the
amplification means 42, and the vibration generated by the vibration generation means 4 is
interrupted from the coupling means 20 of the vibration transmission means 2 to 21 of the tip
portion as amplified strong vibration. Vibration can be efficiently transmitted to the end of the
sound generator and the vibration transmission means 2 by a continuous fiber structure.
[0013]
The sound generator 3 forms a curved surface by bonding the front and back ends of a sheet-like
thin plate, and by applying stress (internal loss) to the inside of the sheet-like thin plate, vibration
is generated in the sound and emitted. It is In FIG. 3, 3 (a) is a conical tubular shape, and 3 (b) is a
plan view of a sheet formed in a cylindrical shape. The sound generator 3 (a) of FIG. 1 of the
loudspeaker is obtained by 3 (a) of FIG. 3, and the sound generator 3 (b) is obtained by 3 (b) of
FIG. The conical cylindrical shape of (a) of FIG. 3 is obtained by bonding the end 3 (a1) on the
right side of the surface and the upper 3 (a2) of the left side corresponding to the reverse side in
a twisted manner. b) The cylindrical shape has a large curved surface area and is transmitted by
a sound generator with a large internal loss by bonding so that the end 3 (b1) on the right side of
the surface and the end 3 (ab) on the left side corresponding to the back are bent together. The
generated vibration is generated and emitted as sound. Since a sheet-like sound generator can
not obtain a large volume or bass only by the curved surface due to the deflection of its own
weight, it is necessary to forcibly bend and form it, and the volume is obtained by the stress
(internal loss) inside the curved surface. By bonding the ends together, rigidity is generated, and
the rigidity generates tension in the fiber structure to generate and emit low-pitched sound. In
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the sound generator 3 (a), the volume including the bass is obtained, in the sound generator 3
(b), the high sound is obtained, and in the sound generator 3 (c), the soft middle sound is
obtained.
[0014]
The material of the sound generator 3 is preferably a material excellent in vibration transmission
having a fiber structure and having a large internal loss as well as the conditions suitable for the
formation of the above-mentioned curved surface. Since the size of the internal loss is an
important factor for the transmitted vibration to be generated as sound, the material that is
exemplified as a material having a fiber structure is sliced fiber skins, leaves, and wood parts of
grass. It may be a sheet-like thin plate, paper, or a laminate of paper or wood laminated with
plastic or metal, or it may be a thin plate in which a fabric is reinforced, carbon fiber or glass
fiber. Preferably, natural plant fibers produced by the vitality of plants are preferable, and more
preferably, a sheet-like wood in which a thin plate (transwood) sliced from plain wood is
reinforced with Japanese paper is preferable. In this case, although the vibration transmitted by
appropriate internal loss and bending is efficiently generated and emitted as sound, it is not
restricted by these. In addition, by strengthening with Japanese paper, the sound generator is not
broken or broken even by momentary strong vibration or continuous excitation, and there is an
effect that sound is not attenuated and clear sound is produced. It is.
[0015]
Although the method of driving the actuator 40 for converting the electrical signal as the
vibration generating means 4 into physical vibration is appropriately selected, the actuator used
in the present invention is a perspective view of FIGS. 4 (a) and 4 (b), As shown in the crosssectional views of the vibration generating means 4 in (a) and (b), an amplification means 42 is
provided in the drive means 41 corresponding to the drive portion of the actuator, and a fixing
means 43 is provided in the vicinity of the central position of the drive means 41, A coupling
hole 44 is provided in the vicinity of the central axis of the driving means 41 of the fixing means
43. In Patent Document 1, as a sound source, one end of a supporting portion (formed integrally
with the voice coil) supporting a voice coil in a suspended state is attached to a lid of a storage
case (housing), and a tip of a rod-like member is a supporting portion The vibration is
transmitted to the rod-like member in contact with the recess of the housing, but the lid for fixing
the support that supports the voice coil in a suspended state is considered to correspond to a
diaphragm and is made of a hard material such as plastic It is used. The vibration generated by
the voice coil is not amplified, and the support is supported by the voice coil in a suspended
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state, and the rigid material (plastic) serving as the diaphragm for fixing the support is used to
generate the vibration. It is considered that the transmission loss of the vibration must be
increased in the vicinity. Therefore, only weak vibration is transmitted to the blade member
provided at the rod-like tip, and the range is narrow. For example, there is a problem that no lowpitched sound or high-pitched sound is produced. In the present invention, the drive unit (voice
coil) of the actuator is fixed so as not to come off, the amplification means 42 is provided via the
drive means 41, the fixing means 43 is provided near the central position of the drive means 41,
and the fixing means A coupling hole 44 is provided in the vicinity of the central axis of the drive
means 41 of 43, and the amplified vibration is transmitted to the vibration transmission means 2
in a state where there is no transmission loss. That is, the coupling hole 44 is provided in the
vicinity of the drive shaft center line 45 of the actuator, and the center axis of the vibration
transfer means 2 coincides with the center axis of the actuator by bringing the vibration transfer
means 2 into contact. The vibration generated is transmitted to the end of the vibration
transmitting means 2, and the vibration generated by the vibration generating means 4 is
coaxially fixed by the fixing means 43 to the end of the vibration transmitting means 2. The
vibration generated by the vibration generating means 4 is amplified and transmitted as a strong
vibration to the vibration transmitting means 2 as appropriate, and the sound range is wide due
to the appropriate internal loss of the member formed of the material having the fiber structure.
A sound is generated.
[0016]
The amplification means 42 can amplify momentary strong vibration and continuous weak
vibration of the vibration generated by the actuator when the end is in the free state shown in
FIG. 4A, otherwise, for example, both ends In the case of using an amplification plate having a
fixed part, contradiction occurs when trying to amplify strong vibration and weak vibration
repeatedly. Reaction amplification is accompanied by momentary strong vibration amplification,
and attenuation may occur conversely due to the provision of an amplification plate fixed at both
ends, and continuous weak vibration is less effective, and If it is attempted to match the
continuous weak vibration, vibration cracking occurs in strong vibration. 4 (a), or an
amplification means 42 whose end is formed in an appropriate form close to free FIG. 4 (b) (for
example, three or four points on the concentric circle of the central axis of the drive means 41)
By providing a form of being connected in a state where the width of the degree is narrow, it is
possible to amplify both strong vibration and weak vibration, and even if momentary strong
vibration is amplified, vibration cracking does not occur. It can be amplified. Therefore, as shown
in the perspective views of FIGS. 4A and 4B and the cross sectional views of the vibration
generating means 4 of FIGS. 5A and 5B, the end of the drive means 41 corresponding to the
drive portion of the actuator is free. Amplifying means 42 (for example, a form in which three or
four points on the concentric circle of the central axis of drive means 41 are narrowly connected)
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formed in an appropriate form close to or free of The fixing means 43 is provided in the vicinity
of the central position of the means 41, and the coupling hole 44 is provided in the vicinity of the
central axis of the driving means 41 of the fixing means 43 to amplify the vibration to strong
vibration without causing vibration cracking. It is
[0017]
The material of the fixing means 43 provided in the amplifying means 42 is appropriately
selected. For example, the fixing means 43 may be made of metal, plastic, wood, or solid wood,
but is preferably made of dry solid wood. In this case, when the coupling means 20 formed at the
end of the vibration transmitting means 2 abuts on the coupling hole 44 of the fixing means 43,
the portion abutted by the internal stress due to compression of wood, ie, the repulsive force is
tightened In this state, the amplification means 42, the drive means 41 and the actuator 40 are
integrated through the fixing means 43, and the vibration generated by the vibration device is
easily transmitted to the end of the vibration transmission means 2 efficiently. In this case, the
coupling hole 44 needs to be provided in the vicinity of the vicinity of the center line 45 of the
drive shaft of the actuator, but the vicinity of the vicinity means that the center line 45 is
included in the size range of the coupling hole. That is, if the bonding hole is a circle with a
diameter of 3 mm, it is in the range of 3 mm, and if the bonding hole is a circle with a diameter
of 9 mm, it is in a range of 9 mm. Although accuracy is required, the dimensions of the coupling
holes are not bound by these explanations.
[0018]
The coupling means 20 formed at the end of the vibration transmission means 2 is appropriately
formed of the material of the fixing means 43. When the material of the fixing means 43 is metal,
plastic or solid wood, the bonding means 20 is preferably made of the same material as the
vibration transmitting means 2, but it is a plywood or wood fiber board even if it is a wood
material. In the case of the fixing means 43 formed, both screws are attached to the end of the
vibration transmitting means 2 and the end of the fixing means 43 and the end of the vibration
transmitting means 2 are in close contact by screwing into the coupling hole 44 of the fixing
means 43 There is a conceivable way to The vibration transmission means 2 is tightened to the
fixing means 43 by this method.
[0019]
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FIG. 6 is a perspective view of the second embodiment of the present invention. This is an
example in which three sound generators 3 (a) and one 3 (c) provided at the end of the
separately formed vibration transmitting means 2 are bundled into one and coupled to the
vibration generating means 4 . In this case, a soft sound, a large bass and a volume can be
obtained, and the directivity of the sound can be widely obtained. The vibration transmission
means 2 is not formed of only one material, but may be a case where a plurality of thin vibration
transmission means 2 are collectively gathered and tightened, and it is stronger like a braid. The
vibration transmitting means 2 is configured, and the cross section of the vibration transmitting
means 2 is formed by an appropriate shape for efficiently transmitting the vibration.
[0020]
FIG. 7 is a perspective view of the third embodiment of the present invention. The configuration
is the same as that of the second embodiment. Three sound generators 3 (a) and one 3 (c)
provided at the end of the vibration transmission means 2 are bundled into one and coupled to
the vibration generating means as one, and the speaker main body is pressed by the pedestal
This is an example of enhancing the stability of In this case, a soft sound, a large bass and a
volume can be obtained, and at the same time, the vibration is transmitted to the pedestal 5 to
generate a sound, a deep bass having a profound feeling can be obtained, and the directivity of
the sound can be widely obtained. Also, if the speaker of the present invention is ikebana, the
sound generator 3 may be disposed cleanly to produce a fresh sound like a single flower.
[0021]
FIG. 8 is a perspective view of the fourth embodiment of the present invention. Sound generator
3 (a) is provided on a thin and long point like a tall single sunflower, and it can distribute the
sound to a distant place without a sound source or power source, and where many people gather
It is possible to selectively deliver sound in a spot manner. The vibration transmission means 2
can be made long as long as it is bent by its own weight, broken and broken. For example, the
sound can be delivered to the center of a circle 4 meters away or where many people gather.
Also, the sound generator 3 (a) can be removed and brought into contact with another sound
generator at a location away from the tip to generate and emit sound. For example, even with
ceilings, walls, floors, furniture and furniture, sound is generated and emitted.
[0022]
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FIG. 9 is an explanatory diagram of the fifth embodiment of the present invention. The speaker 1
according to the present invention can be used as the speaker 1 by connecting to an output
device 10, for example, an amplifier of a personal computer or an audio device, a television, a
portable player, a portable telephone or the like by the connection line 11.
[0023]
FIG. 10 is an explanatory diagram of the sixth embodiment of the present invention. The speaker
1 according to the present invention can be used as the speaker 1 by the wireless run 13 by
incorporating a battery and an amplifier in the vibration generating means 4. It receives various
music distributions via the Internet via mobile wireless equipment 12 (such as mobile phones
and smartphones), generates sound as a sound, and radiates it, so it can be used even in places
without electrical equipment or audio equipment . In this case, the vibration generating means 4
can also be obtained by a commercially available vibration speaker. For example, BT-SP100V
made by JENESIS HOLDINGS CO., LTD. And UMA-BVS01 made by HAFFA Q CELLS JAPAN CO.,
LTD. Are exemplified, but it is a product having a similar structure even if it is a product other
than the two companies. It does not matter if it is.
[0024]
1 Speaker 2 Vibration Transmission Means 3 Sound Generator 4 Vibration Generation Means
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