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JPH04309100

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JPH04309100
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
electrical-mechanical vibration converter that generates a mechanical signal in response to a low
frequency current such as an audio signal.
[0002]
2. Description of the Related Art A body-sensible sound device which receives a signal from an
acoustic device or the like and converts it into mechanical vibration and this vibration is received
by the body together with the sound from a speaker or headphones has long been known by the
present inventors. Research has been advanced, and many patent rights or utility model rights
have been acquired (Japanese Patent Publication No. 58-2517, Japanese Patent Publication No.
57-9272, Japanese Patent Publication No. 58-9640, Japanese Utility Model Publication No. 646622 Japanese Utility Model Publication No. 5-4316, etc.).
[0003]
In each of the above-mentioned publications, the electric-mechanical vibration converter is
embedded in the human body mount or attached to the human body mount, and the vibration
generated by the electric-mechanical vibration converter is It was a structure given to a human
body via a human body placement thing.
[0004]
In the case where the vibration generated by the electric / mechanical vibration converter is to
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be felt by the user's body through the human body mounting member in the prior art, it is
conventional to use electricity, Since the pursuit of function and conversion efficiency has been
given priority over mechanical vibration transducers, consideration to the size and soundability
of the electric / mechanical vibration transducers and the vibration direction of the human body
(vibrator) has been delayed. I was afraid to become.
[0005]
The conventional electric-mechanical vibration converter generates vibration output in the axial
direction (direction orthogonal to the surface of the disk-like electric-mechanical vibration
converter) such as a magnet and a coil. When horizontally mounted on a human body mounted
object such as a rug, bed pad or chair and the human body mounted object is vertically vibrated,
a part of the human body mounted object sometimes acts as a diaphragm with a large area.
[0006]
As described above, when the human body acts as a diaphragm with a large area, there is a
problem that it becomes like a super large woofer and generates unnecessary bass acoustic
radiation.
If the human body mounted with the electrical / mechanical vibration converter emits
unnecessary bass sound, it will break the balance with the sound emitted by the speaker or cause
noise.
What is required of the electrical-mechanical vibration converter is that there is no sound even if
it vibrates.
Furthermore, when vertically vibrating a human body mounted object, there is also a problem
that when the body to be vibrated is lightened, it becomes soft and the vibration transmission
efficiency decreases (the vibration becomes difficult to transmit).
[0007]
In the case of longitudinally vibrating a human body mounting material such as a bed, a bed pad,
or a chair by using a conventionally used magnet and an electric / mechanical vibration
converter of a type generating vibration output in the axial direction such as a coil. In this case,
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the user feels uncomfortable because the user is seated or lying on the top of the part where the
electric / mechanical vibration converter is attached, and in some cases affects the vibration
transmission. There is also a possibility that the electrical-mechanical vibration converter may be
damaged by the load of the user on the human body.
[0008]
From the above, when lateral vibration was applied to the human body from the lateral direction,
generation of unnecessary low frequency sound radiation was eliminated.
This is because the effective area of the vibrating plate can be drastically reduced by making the
vibration of the human body lateral vibration.
This makes it possible to deplete the unwanted bass acoustic radiation and bring it closer to the
ideal state where no sound is produced by vibration.
[0009]
Also, the vibration transmission efficiency has been enhanced by applying lateral vibration to the
human body placing object. This is because even if the plate to be vibrated is soft, the apparent
rigidity is increased when the lateral vibration is applied from the lateral direction, and the
vibration is well transmitted. For example, even with a plastic mesh-like light material, when
lateral vibration is applied, the stiffness in the vibration direction is kept equivalently high, and
the vibration transmission efficiency becomes high. Furthermore, if the lateral vibration is
applied from the lateral direction, the electrical-mechanical vibration converter may not be
provided at the portion of the human body placed on which the user's load is applied.
[0010]
Therefore, in the case of using the conventional electric-mechanical vibration converter to
horizontally vibrate the human body, an L-shaped bracket or the like is attached to the side of the
human body, and the electric / mechanical vibration is attached to this bracket or the like. If the
transducer is mounted vertically and the vibration output generated in the axial direction is
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applied to the human body mounting object via the bracket etc., the human body mounting
object will be laterally vibrated. However, since arranging the electric / mechanical vibration
converter on the side of the human body mounts up the electric / mechanical vibration converter
in this way, it is necessary to place a space and space in the height (thickness) direction for
mounting. There is a problem that it is bothersome and disturbs the user and the appearance is
also impaired.
[0011]
The present invention has been made in view of this point, and makes the overall shape thinner
and causes the vibration to be in the plane direction (the direction parallel to the plane of the flat
vibration converter), Furthermore, it is an object of the present invention to provide an electricmechanical vibration converter capable of obtaining strong vibration.
[0012]
[Means for Solving the Problems] As means for solving the above-mentioned problems, the
present invention is an end portion of a projecting portion of an E-shaped magnetic body at both
ends and a central portion of a rod-like magnetic body. Of the two magnetic bodies are fixed to
the housing while the other is suspended through the damper to receive a low frequency current
such as an audio signal in one of the two magnetic bodies. A coil is wound to connect the coil to a
low frequency signal source, thereby obtaining an electric-mechanical vibration converter.
[0013]
With such a configuration, when a voice current from an acoustic device flows through the coil, a
magnetic circuit generated in the magnetic body wound with the coil and a magnetic circuit
generated in the other magnetic body The magnetic interference action of "suction and
repulsion" occurs between them, and the vibration due to the mass of the magnetic body and the
coil suspended from the damper causes the housing to vibrate in the planar direction.
The vibration of the housing generated in this manner causes the human body mounting member
to vibrate in a lateral direction since the electric / mechanical vibration converter is mounted
horizontally to the human body mounting member.
The housing can be made thinner by arranging the rod-shaped magnetic body and the E-shaped
magnetic body in the plane of the housing and by dividing the coil.
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[0014]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The electrical-mechanical
vibration converter 1 according to the present invention will be described below with reference
to FIG. 1 as a principle diagram and FIGS. 2 to 5 showing an actual structure. 2 is a magnet which
is a rod-like magnetic body. The magnet 2 is magnetized in such a manner that its both ends and
the central part are in three poles. The end of the projecting portion 3a of the E-shaped core 3
which is an E-shaped magnetic body which is not magnetized is provided with a minute air gap d
of about 2 to 5 mm at both ends and the central part of the magnet 2 It is made to face. The
magnet 2 which is both magnetic bodies and the magnet 2 which is one of the magnetic bodies
of the E-shaped core 3 is fixed to the housing 4 by a bolt 5 and the E-shaped core 3 which is the
other magnetic body is a damper 6 , 7 so as to be vibrated from the housing 4.
[0015]
In this embodiment, the housing 4 is formed by joining two plates 4a and 4b as shown in FIGS.
What is necessary is just to be able to accommodate all things, such as a magnet 2, an E-shaped
core 3, and a coil 13 (described later).
[0016]
The specific structure of the support portion of the E-shaped core 3 is such that the end of the
damper 6 consisting of an elastic plate which is partially U-shaped as shown in FIG. The damper
7 is supported by the retainer 8 provided inside, and the damper 7 side fixes the damper 7
having the slits 9 and 10 formed in the plate to the housing 4 with the bolt 12 via the spacer 11
as shown in FIG. There is.
[0017]
Fixing of the damper 6 to the E-shaped core 3 is performed by means such as adhesion to the
end of the bobbin 14 around which the coil 13 is wound, and fixing of the damper 7 to the Eshaped core 3 is performed A boss 16 attached to the base 7 with a bolt 15 is attached to the
base of the core 3 by means such as adhesion.
[0018]
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The core 3 has an E shape, and the coil 13 wound around the bobbin 14 is mounted one by one
on the whole projecting portion 3a.
The coil 13 generates a magnetic force by a low frequency current such as an audio current
which is an output signal of an audio device.
The three coils 13 can be made long enough to earn ampere-turns as much as possible, and the
wire diameter is selected so that the outer diameter does not become too large, and connected in
series or in parallel to achieve the standard impedance. It is done.
[0019]
In the electric-mechanical vibration converter 1 having such a configuration, the rod-like magnet
2 subjected to tripolar magnetization generates magnetic lines of force from beginning to end,
and the lines of magnetic force extend to the E-shaped core 3 side. There is.
In this state, when an audio current processed by a low-pass filter or the like is applied to the coil
13 from the audio device 17 which is a low frequency signal source, the core 3 to be an
electromagnet is thereby instantaneously and instantaneously (shown in FIG. N, S) Polarity
changes. Therefore, a magnetic interference action of "suction, repulsion" is generated between
the magnet 2 and the magnet 2 whose polarity does not change.
[0020]
Due to the magnetic interference action, the vibration of the magnet 2 due to the mass of the Eshaped core 3 suspended by the dampers 6 and 7 and the coil 13 causes the housing 4 to vibrate
strongly in the plane direction. The vibration of the housing 4 generated in this manner causes
the human body mounting member to vibrate in a lateral direction since the electric / mechanical
vibration converter 1 is horizontally mounted on the human body mounting member.
[0021]
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FIG. 6 shows a modification of the electric-mechanical vibration converter 1. A magnet 20 shown
in this figure uses a non-magnetized core 18 in place of the magnet 2 in FIG. 1 and a magnet 20
magnetized in the center of a U-shaped core 19 in place of the E-shaped core 3 in three poles.
The coil 13 is wound around the projecting portion 19a of the core 19 using the magnetic body
21 provided with the above. In this structure, vibration is obtained by the action of increasing or
decreasing the magnetic flux of the magnet 20 which is always generated by the application of
the audio current of the coil 13.
[0022]
The electric-mechanical vibration converter 1 described above has a wire diameter such that an
ampere-turn can be made as much as possible by the three coils 13, 13 and 13 and the external
shape of the coil 13 does not become too large. Choose a winding and connect in series or in
parallel to achieve the standard impedance. The coil 13 is manufactured in this manner, and the
rod-like magnet 2 and the E-shaped core 3 and the like are disposed in a plane, and by dividing
the coil 13 into three parts, the housing 4, that is, the electric-mechanical vibration converter 1
Can be made quite thin.
[0023]
Next, an example of a human body mounting using the electric-mechanical vibration converter 1
of the above structure will be described. 7 and 8 are embedded in the rug 22. FIG. That is, the
electric-mechanical vibration converter 1 is embedded in a rug 22 composed of a net 23 and a
cushion material 24 surrounding the net 23, and the net 23 is caused to generate lateral
vibration as shown in FIG. 9 to 11 show the structure, FIG. 9 is a plan view in a partially cutaway
state, FIG. 10 is a cross section taken along the line D-D in FIG. 9, and FIG. The cross section
which expanded the part shown by arrow E is shown.
[0024]
The modification shown in FIGS. 12 and 13 is a modification of the one shown in FIGS. 7 and 8,
in which the electro-mechanical vibration transducer 1 is embedded in the vicinity of both ends
of the rug 22. In this case, since the vibration of the electric-mechanical vibration converter 1
occurs near both ends of the rug 22, it is suitable for the rug 22 with a large area.
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[0025]
What is shown in FIGS. 14 and 15 is the case of a thick rug 25. The cover 25 is formed by
sandwiching a continuous U-shaped intermediate member 28 between the upper cloth 26 and
the lower cloth 27. The electric-mechanical vibration converter 1 is provided on both sides of the
center of the intermediate member 28. It is something that is supported. In this case, it can be
thicker (higher) than those in FIGS. 7 and 8. Because of the shape of the intermediate member
28, the load from above is strong, and the horizontal vibration is performed well.
[0026]
16 and 17 are also substantially the same as those shown in FIGS. 14 and 15. However, when the
mounting position of the electric-mechanical vibration converter 1 is changed and the electricmechanical vibration transducer 1 is seated, the electric-mechanical vibration is obtained. It is
made to turn to the direction of the converter 1.
[0027]
FIGS. 18 to 21 show the case where the electro-mechanical vibration converter 1 according to
the present invention is applied to the floor 29 for aerobics of a fitness club, 30 is a leg, and 31 is
an insulator.
In the case of this embodiment, upon actuation, vibrations as indicated by arrows in FIG. 19
occur.
[0028]
FIGS. 22 and 23 show an example of application to the bed 32, in which a mat 34 on which
electrical / mechanical vibration transducers 1 are mounted on both sides is placed at the center
of the mattress 33. As shown in FIG. In this case, a vibration as shown by an arrow in FIG. 23 can
be obtained.
[0029]
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FIG. 24 shows the electric-mechanical vibration converter 1 of the present invention applied to a
nap bed 36 in the cab 35 of a large truck. In this case, the electrical-mechanical vibration
converter 1 may be installed on the foot side to generate vibrations as shown by arrows in FIG.
[0030]
FIG. 26 shows the case of application to the mat 38 used in the bath 37. As shown in FIG. In this
case, the electric-mechanical vibration converter 1 is accommodated in a mat 38 in consideration
of waterproofness, and an audio current is supplied to this. Then, a vibration as shown by an
arrow in FIG. 27 is obtained.
[0031]
FIGS. 28 to 30 show a construction in which the electric-mechanical vibration converter 1 is
accommodated in a litter 39 for toilets. In this case, the electric-mechanical vibration converter 1
is attached to the net 40 in the rug 39 so as to apply horizontal vibration to the user's foot as
shown in FIG. In FIG. 29 and FIG. 30, reference numeral 41 denotes a speaker, which is attached
to a wall in a variable angle.
[0032]
31 to 32 show an electric-mechanical vibration converter 1 incorporated in the footrest plate 42
of a person who has seated the electric-mechanical vibration converter 1 according to the
present invention on an office chair. There is a notch 43 formed in a part thereof, which is
engaged with the leg 44 of the chair.
[0033]
What is shown in FIGS. 34 and 35 is the case where the electric-mechanical vibration converter 1
according to the present invention is applied to a sofa 45.
In this case, the seat 46 of the sofa 45 vibrates in the horizontal direction as shown in FIG.
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[0034]
The present invention is an electric-mechanical vibration converter configured as described
above, and can be manufactured to be extremely thin compared to the conventionally used
electric-mechanical vibration converter. Since the vibration direction is the planar direction of the
electric-mechanical vibration converter, it can be mounted horizontally on the human body
mounting body, and the human body mounting body can be laterally vibrated. As a result, the
effective area of the plate to be vibrated can be drastically reduced, and a part of the human body
mount will not act as a diaphragm of a large area, and no unnecessary bass acoustic radiation
will be generated. Therefore, the balance with the sound emitted by the speaker is not broken.
[0035]
As described above, since the electric / mechanical vibration converter can be horizontally
mounted on the human body mounting member and the human body mounting member can be
laterally vibrated, the apparent rigidity of the human body mounting member can be enhanced to
improve the vibration transmission efficiency Vibration is transmitted well. In addition, since the
electric / mechanical vibration converter can be mounted avoiding the sitting or lying position of
the user of the human body, the electric / mechanical vibration converter can be damaged
without giving a sense of discomfort to the user. It disappears. Furthermore, since the electricmechanical vibration transducer is made thin and mounted horizontally on the human body, it
does not require a place in the height (thickness) direction for mounting and a space for the user
to be disturbed. There is no loss of appearance.
[0036]
Brief description of the drawings
[0037]
1 is a schematic view showing the principle of the electric-mechanical vibration converter
according to the present invention.
[0038]
2 is a plan view showing the structure of the electric-mechanical vibration converter according to
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the present invention.
[0039]
3 is a view in the direction of the arrows AA line of FIG.
[0040]
4 is an arrow view along the line B-B in FIG.
[0041]
5 is an arrow view along the line C-C in FIG.
[0042]
6 is a plan view showing a modification of the structure of the electric-mechanical vibration
converter according to the present invention.
[0043]
7 is a perspective view showing an example in which the electric-mechanical vibration converter
according to the present invention is provided in a rug.
[0044]
8 is a side view of FIG.
[0045]
9 is a plan view showing a mounting state of the electric-mechanical vibration converter by
cutting away a part of the one shown in FIG.
[0046]
10 is a cross-sectional view taken along the line DD of FIG.
[0047]
11 is an enlarged sectional view of a portion indicated by arrow E in FIG.
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[0048]
12 is a perspective view showing an example in which the electric-mechanical vibration
converter according to the present invention is provided at both ends in a wide area of the rug.
[0049]
13 is a side view of FIG.
[0050]
14 is a perspective view showing an example in which the electric-mechanical vibration
converter according to the present invention is provided in a thick rug.
[0051]
15 is a side view showing the user standing on the one of FIG.
[0052]
16 is a perspective view showing an example in which the electric-mechanical vibration
converter according to the present invention is provided in a rug having a larger area than that
of FIG.
[0053]
17 is a side view of FIG.
[0054]
18 is a perspective view showing an example of applying the electric-mechanical vibration
converter according to the present invention to a floor for aerobics.
[0055]
19 is a front view of FIG.
[0056]
20 is a plan view of the one of FIG.
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[0057]
21 is a side view of FIG.
[0058]
22 is a perspective view showing an example of application of the electric-mechanical vibration
converter according to the present invention to a bed.
[0059]
23 is a plan view of the one of FIG.
[0060]
24 is a perspective view showing an example of application of the electric-mechanical vibration
converter according to the present invention to a bed for nap in the cab of a large truck.
[0061]
25 is a side view of the sleeping bed of FIG.
[0062]
26 is a perspective view showing an example of applying the electric-mechanical vibration
converter according to the present invention to a mat used in a bath.
[0063]
27 is a schematic view showing the bathtub portion of FIG. 26 in cross section.
[0064]
28 is a perspective view showing an example of application of the electric-mechanical vibration
converter according to the present invention to a rug for the toilet.
[0065]
29 is a plan view of the one of FIG.
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[0066]
30 is a side view showing the use of the one of FIG.
[0067]
31 is a perspective view showing an example in which the electrical-mechanical vibration
converter according to the present invention is incorporated in the footrest plate of a person
seated on an office chair.
[0068]
32 is a side view partially showing the main part of FIG. 31.
[0069]
FIG. 33 is a perspective view showing a state in which the footrest plate of FIG. 32 is released
from the chair.
[0070]
34 is a perspective view showing a case where the electric-mechanical vibration converter
according to the present invention is applied to a sofa.
[0071]
35 is a side view of the one of FIG.
[0072]
Explanation of sign
[0073]
Reference Signs List 1 electric-mechanical vibration converter 2 magnet 3 E-shaped core 3 a
protruding portion 4 housing 6 damper 7 damper 13 coil 17 acoustic device d minute air gap
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