close

Вход

Забыли?

вход по аккаунту

?

JPH0514996

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPH0514996
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
thin electric-mechanical vibration converter which generates mechanical vibration in response to
a low frequency current such as an audio signal.
[0002]
2. Description of the Related Art For example, in a line telephone, the line is vibrated by the
sound wave of the voice spoken by itself, and this vibration transmits the voice to the other party.
The vibration direction of the yarn at this time is hereinafter referred to as vibration in the sound
propagation direction. The vibrating body described below corresponds to the yarn of the abovementioned yarn telephone. Therefore, when the mechanical vibration is generated in the electric
/ mechanical vibration converter by attaching the electric / mechanical vibration converter to the
body to be vibrated of the human body mounting object such as a rug, bed pad or chair, the
generated vibration is a human body mounting object Will be transmitted to However, depending
on how the vibration is applied to the body to be vibrated, the human body mounting object is a
large-area diaphragm, and there is an inherent technical problem that it produces unnecessary
low frequency sound radiation like a super large woofer. If a human body mounted with an
electric-mechanical vibration converter generates such unnecessary bass acoustic radiation, it
will break the balance with the sound emitted by the speaker or cause noise. The mechanical
vibration converter is required to have no sound even if vibration is transmitted to the human
body mounted object. In addition to the above-mentioned sound problem, it is desirable to have a
good vibration transmission efficiency to the human body placing object.
10-05-2019
1
[0003]
In addition, in the case of transmitting the vibration to the human body by using the electricmechanical vibration transducer, if the vibration of the electric-mechanical vibration transducer
itself is directly attached to the human body, the vibration is It may be transmitted to the human
body excessively, which may cause discomfort. Therefore, it is desirable to mount the electromechanical vibration transducer at a position where the vibration does not directly strike the
human body. Furthermore, if the human body is positioned above the part where the electrical /
mechanical vibration transducer is mounted, the electrical / mechanical vibration transducer is
held down by the human body, which affects the vibration transmission or the load on the human
body. In some cases, there is a possibility that the electrical-mechanical vibration converter may
be damaged. Therefore, it is desirable that the vibration of the electric / mechanical vibration
converter does not directly hit the human body at the mounting position of the electric /
mechanical vibration converter in consideration of the unnaturalness.
[0004]
Heretofore, the inventors of the present invention have conducted researches on body-sensing
acoustic devices that receive signals from acoustic devices etc. and convert them into mechanical
vibrations, and give this vibration to the body together with the sound from speakers or
headphones. (See Japanese Patent Publication Nos. 58-2517, 57-9272, 58-9640, 64-6622, 54316, etc.).
[0005]
The above-mentioned prior art electric-mechanical vibration converter generates vibration in a
direction perpendicular to the plane of the disk-shaped electric-mechanical vibration converter,
and this is horizontally mounted on the body to be vibrated of the human body. A vibration in a
direction perpendicular to the sound propagation direction (hereinafter, the vibration in the
vibration direction is referred to as a longitudinal vibration) is given to the human body mounted
object.
[0006]
The above-described prior art electric-mechanical vibration converter generates vibration in the
direction orthogonal to the plane of the disk-shaped electric-mechanical vibration converter for
10-05-2019
2
the purpose of giving longitudinal vibration to a human body mounting object. In the case of
mounting on a human body mount, especially thin and light ones, in the direction in which the
longitudinal vibration is given to the human body mount, that is, in addition to mounting the disc
surface of the electric / mechanical vibration transducer along the human body mount. Could not
be installed as it is.
As described above, when longitudinal vibration is applied to the human body mounted body, the
human body mounted becomes a large diaphragm and acts like a so-called super large woofer to
break the balance with the sound emitted from the speaker or cause noise. Problems occur.
[0007]
Further, in order to longitudinally vibrate the human body mount, it is necessary to arrange the
electric-mechanical vibration transducers so as to be scattered in the plane of the human body
mount.
Therefore, when the human body gets on the human body mounting body, the human body may
be positioned on the electric-mechanical vibration converter, in which case problems such as
discomfort, reduction in vibration transmission efficiency and damage may occur. Furthermore,
in the case where the human body mounting object is made to be thin and light, for example, a
cover or a bed pad, by causing longitudinal vibration to vibrate the body to be vibrated, vibration
transmission is caused by the relationship of the hardness of the vibration receiving body. There
was also a problem that the efficiency became worse.
[0008]
It has been clarified by experiments that the cause of the above-mentioned conventional
problems is that longitudinal vibration is applied to a body to be vibrated to cause longitudinal
vibration of a human body mounted object. Therefore, the inventor has developed an electricmechanical vibration converter that applies vibration in the sound propagation direction
(hereinafter referred to as lateral vibration) to the vibration target.
[0009]
The present invention has been made based on the above-described experiment, and it is possible
10-05-2019
3
to make the overall shape thinner, generate lateral vibration with respect to the vibrator, and
obtain high vibration transmission efficiency. It is an attempt to provide a vibration transducer.
[0010]
The means according to the present invention for solving the above-mentioned problems is
characterized in that the protruding portions of the E-shaped magnetic material are provided on
both sides of a rod-like magnetic material in the same plane. And one of the rod-like magnetic
body and the E-shaped magnetic body is fixed to the housing while the other is floatingly
supported on the housing via a damper, and an audio signal or the like is applied to one of the
two magnetic bodies. The coil is connected to a low frequency signal source by winding a coil
receiving low frequency current.
[0011]
Since the present invention is configured as described above, when an audio current from the
acoustic device is supplied to the coil, the magnetic circuit generated in the magnetic body
wound with the coil and the magnetic body generated in the other magnetic body A magnetic
interference action of "suction, repulsion" is generated between the circuit and the circuit, and
vibration is generated due to the mass of the magnetic body suspended and supported by the
damper.
Since the bar-shaped magnetic body and the E-shaped magnetic body are disposed in the same
plane, this vibration causes the housing to vibrate in the plane direction (the direction parallel to
the plane of the thin electric-mechanical vibration converter). become.
[0012]
Furthermore, the diameter of the coil bobbin is reduced by arranging the rod-shaped magnetic
body and the E-shaped magnetic body in the same plane, and dividing one of the magnetic bodies
into an E-shape to divide and wind the coil. As a result, the thickness of the housing can be
reduced, and the weight ratio of the bar-shaped magnetic body to the E-shaped magnetic body
can be increased.
Thus, since the vibration of the housing for transmitting the vibration to the vibrating body is
10-05-2019
4
generated in the plane direction, the electric / mechanical vibration converter is made thin
according to the thin covering or the like. As a result, it is possible to give lateral vibration to the
vibrating body.
[0013]
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. The reference
numeral 2 denotes a magnetized magnet which is a rod-like magnetic body. On both sides of the
magnet 2, cores 3 which are E-shaped magnetic bodies which are not magnetized are disposed in
the same plane with the protruding portion 3 a side facing the magnet 2. The end portions of the
magnet 2 and the projecting portion 3a of the core 3 are opposed to each other by providing a
minute gap d of about 2 mm to 5 mm. The magnet 2 is fixed to the mounting portion 5
adhesively fixed to the housing 4 with its both end portions supported, and the E-shaped cores 3
on both sides of the magnet 2 are vibrated to the housing 4 by the damper 6. It is freely
suspended and supported.
[0014]
The damper 6 has a slit 7 formed in the plate (see FIG. 4), and the damper 6 is fixed to the
housing 4 by means such as adhesion to a spacer 9 fixed to the housing 4 by bolts 8. Further, the
fixing of the damper 6 to the E-shaped core 3 is performed by means such as adhesion to the
boss 11 fixed to the bolt 6 by the bolt 10. Furthermore, the cores 3 provided on both sides of the
magnet 2 are connected to each other by the U-shaped connecting member 12 (see FIG. 2) that is
fixed to the upper and lower sides of the magnet 2 (see FIG. 3). ing.
[0015]
A bobbin 14 on which a coil 13 is wound is mounted on each of the projecting portions 3 a of the
E-shaped core 3 provided on both sides of the magnet 2. Therefore, the coil 13 is divided into six
bobbins 14 and wound around the projecting portion 3a. These coils 13 are respectively
connected in series or in parallel so as to obtain an impedance of winding standard by selecting a
wire diameter that can obtain an ampere turn as much as possible and the outer diameter does
not become too large. . In addition, the coil 13 generates a magnetic force at a low frequency
10-05-2019
5
current such as an audio current which is an output signal of the audio device 15.
[0016]
The housing 4 is formed by combining two boxes 16 and 17 in this embodiment as shown in FIG.
5 in this embodiment, but may be another structure, and the main point is the magnet 2, core 3,
coil It is sufficient if it can accommodate all of 13 and so on.
[0017]
The operation of this embodiment configured in this way will be described next.
Since one of the magnetic members of the electric-mechanical vibration converter 1 is the
magnet 2, magnetic lines of force are generated from beginning to end, and the magnetic lines of
force extend to the core 3 side. In this state, when an audio current subjected to signal
processing such as passing through a low pass filter is supplied to the coil 13 from the audio
device 15 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" occurs between the magnet 2 and the magnet 2 whose
polarity does not change.
[0018]
Due to this magnetic interference action, the vibration due to the mass of the two cores 3
floatingly supported by the damper 6 and connected by the connecting member 12 causes the
housing 4 to vibrate. Since the magnet 2 and the E-shaped core 3 are disposed in the same plane
in this vibration direction, the housing 4 is vibrated in a plane direction (a direction parallel to
the surface of the thin electric-mechanical vibration converter 1). It will be.
[0019]
Further, the magnet 2 and the E-shaped core 3 are disposed in the same plane, and the coil 13 is
divided into six projecting portions 3 a of the E-shaped core 3 so that the diameter of the winding
bundle of the winding coil 13 is By making smaller, it becomes possible to make the housing
10-05-2019
6
thinner and to increase the weight ratio between the magnet 2 and the E-shaped core 3 to
generate a large vibrational force. As described above, since the electric-mechanical vibration
converter 1 is made thin and vibration in the plane direction is generated, the electric-mechanical
vibration converter 1 is attached to be attached to a thin and light covering or the like. It
becomes possible to give lateral vibration to the vibrating body.
[0020]
As described above, the electric / mechanical vibration converter 1 is attached to the body to be
vibrated of the human body mounting, and the effective area of the body to be vibrated (human
body mounting) can be drastically reduced by applying lateral vibration. Sound emission can be
reduced. Furthermore, by applying the lateral vibration, even if the vibrating body is thin and
light, the apparent rigidity is increased. For example, as the tension of the thread of the thread
telephone is larger, the sound transmission is better as well. Transmission efficiency can be
increased. That is, even if the body to be vibrated is like a thin mesh light weight material made
of plastic, the stiffness in the vibration direction (stiffness) in the vibration direction is kept high
equivalently by applying the lateral vibration, and the vibration transmission efficiency Improve.
[0021]
What is shown in FIG. 6 is a modification of the electric-mechanical vibration converter 1. The
one shown in this figure uses the unmagnetized core 18 in place of the magnet 2 in FIG. 1, and
further, it is magnetized in the center of the U-shaped core 19 instead of the E-shaped core 3 into
three poles. The coil 13 is wound around the protruding portion 19a of the U-shaped core 19
using the magnetic body 21 to which the magnet 20 is attached. In this structure, the line of
magnetic force of the magnet 20 which is constantly generated is vibrated by the action of
increasing or decreasing the sound current application to the coil 13.
[0022]
Next, the usage aspect of the electric-mechanical vibration converter 1 of the said Example is
illustrated and demonstrated. FIGS. 7 and 8 show an electric / mechanical vibration converter 1
attached to a thin covering 24 which is a human-body-place material comprising a net 22 which
is a vibrating body and a cushion material 23 surrounding the net 22. The transducer 1 is
approximately the same thickness as the rug 24. And, since the vibration of the housing 4 is
10-05-2019
7
generated parallel to the surface of the thin-type electric-mechanical vibration converter 1, by
embedding the electric-mechanical vibration converter 1 parallel to the edge of the rug 24,
Lateral vibration can be applied to the net 22 to allow the human body sitting on the rug 24 to
experience the vibration (see FIG. 8).
[0023]
By applying lateral vibration to the net 22 in this manner, the rug 24 does not longitudinally
vibrate and does not act like a woofer. As a result, unnecessary low-pitched sound emission can
be reduced and the sound can be brought closer to the ideal state even if the human body is
laterally vibrated. In addition, since the electric-mechanical vibration converter 1 is embedded in
the edge of the rug 24 to apply lateral vibration in this manner, the lateral vibration is
transmitted to the entire rug 24 and the electric-mechanical vibration converter 1 is transmitted
to the human body. It will not be pushed, so there will be no discomfort. 9 to 11 show the
structure of FIG. 7, FIG. 9 is a plan view in a partially cut away state, FIG. 10 is a cross-sectional
view taken along the line D-D of FIG. FIG. 10 shows an enlarged cross-sectional view of a portion
indicated by arrow E in FIG.
[0024]
FIGS. 12 and 13 show an electrical-mechanical vibration converter 1 attached to both ends of a
large area of the floor 24. In this case as well, it acts like a woofer like the one shown in FIG.
Vibration transmission efficiency is also improved. In addition, since the electro-mechanical
vibration transducer 1 is embedded at the edge of the rug 24, it is not pushed by a person and
there is no discomfort or damage due to it.
[0025]
What is shown in FIG. 14 and FIG. 15 shows that in which the electric-mechanical vibration
converter 1 is attached to the approximate middle part of the rug 25 which is a thick humanbody-placed article. The cover 25 is formed by arranging a U-shaped intermediate member 28
which is a continuous vibrating body with high rigidity between the upper cloth 26 and the lower
cloth 27. The human body standing on the cover 25 obtains the sensation of lateral vibration as
shown in FIG. 15 by the lateral vibration applied to the intermediate member 28. Also in this
case, it does not act like a woofer like the one shown in FIG. 7, and its vibration transmission
10-05-2019
8
efficiency is also good. Furthermore, since it is not pressed by the human body, the sense of
incongruity and damage are also eliminated.
[0026]
16 and 17 are also substantially the same as those shown in FIGS. 14 and 15, except that the
electrical-mechanical vibration converter 1 is mounted near the edge of the rug 25. The vibration
is given a lateral vibration as shown in FIG. Also in this case, it does not act like a woofer like the
one shown in FIG. 7, and the vibration transmission efficiency is also improved. Furthermore,
since it is not pushed by a person, there is no risk of discomfort or damage.
[0027]
FIGS. 18 to 21 show the case where the electro-mechanical vibration transducer 1 is applied to
the floor 29 for aerobics of a fitness club which is a human body and which is a vibrating body,
and 30 is a leg, 31 is an insulator. In the case of this embodiment, when the electric-mechanical
vibration converter 1 operates, lateral vibration as shown by an arrow in FIG. 19 is obtained. Also
in this case, it does not act like a woofer like the one shown in FIG. 7, the vibration transmission
efficiency is improved, and furthermore, since the floor 29 is hard, the electro-mechanical
vibration converter 1 may be pushed by a person. There is no risk of discomfort or damage.
[0028]
22 and 23 show an example of application to the bed 32, and the bed 34 is a mat 34 which is a
human body mounted body on which the electric / mechanical vibration converter 1 is attached
to both side edges of the net 34A which is a vibrating body. It is placed on the center part of the
mattress 33 of FIG. In this case, a vibration as shown by an arrow in FIG. 23 can be obtained.
Also in this case, as in the case shown in FIG. 7, it does not act like a woofer, the vibration
transmission efficiency is improved, and there is no possibility of being pushed by a person, so
there is no sense of discomfort or damage.
[0029]
10-05-2019
9
FIGS. 24 and 25 show an example in which the electric-mechanical vibration converter 1 is
attached to a core 32A which is a vibrating body and is incorporated into a bed 32 which is a
human-body mounted object. As shown in the figure, the electric-mechanical vibration converter
1 is incorporated in the waist portion of a layman. Since the bed 32 has a spring structure, lateral
vibration is facilitated, and since the upper surface of the spring assembly structure is driven,
there is no sense of incompatibility as it is rumbling, and the assembly is also easy. In this case,
the vibration is obtained as shown by an arrow in FIG. The electric / mechanical vibration
converter 1 can be attached to the side of the bed 32 at the waist or the foot. When it is attached
to the foot side, it is possible to obtain a gentle somatoacoustic vibration from the foot side,
which is effective for sleepiness and the like. Also in this case, as in the case shown in FIG. 7, it
does not act like a woofer, the vibration transmission efficiency is improved, and there is no
possibility of being pushed by a person, so there is no sense of discomfort or damage.
[0030]
The electric / mechanical vibration converter 1 according to the present invention is applied to a
vibration target 36A placed on a nap bed 36, which is a human body mounted in the cab 35 of a
large truck, as shown in FIGS. 26 and 27. It is In this case, the electric-mechanical vibration
converter 1 is installed on the foot side, and vibration as shown by an arrow in FIG. 27 is given.
Also in this case, as in the case shown in FIG. 7, it does not act like a woofer, the vibration
transmission efficiency is improved, and there is no possibility of being pushed by a person, so
there is no sense of discomfort or damage.
[0031]
What is shown in FIG. 28 is the case where it is applied to the mat 38 used in the bath 37. 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. 29 is obtained. Also in this case, as in the case shown in FIG. 7, it does not act like a
woofer, the vibration transmission efficiency is improved, and there is no possibility of being
pushed by a person, so there is no sense of discomfort or damage.
[0032]
The one shown in FIG. 30 to FIG. 32 is the one in which the electric-mechanical vibration
10-05-2019
10
converter 1 is accommodated in the floor covering 39 for the toilet. In this case, the electricalmechanical 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. The reference numeral 41 in FIGS. 31 and 32
denotes a speaker, which is attached to the wall in a variable angle. Also in this case, as in the
case shown in FIG. 7, it does not act like a woofer, the vibration transmission efficiency is
improved, and there is no possibility of being pushed by a person, so there is no sense of
discomfort or damage.
[0033]
33 to 35 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 of the present invention
on an office chair, The notch 43 formed in the part is made to be locked to the leg 44 of a chair.
Also in this case, as in the case shown in FIG. 7, it does not act like a woofer, the vibration
transmission efficiency is improved, and there is no possibility of being pushed by a person, so
there is no sense of discomfort or damage.
[0034]
What is shown in FIGS. 36 and 37 is the case where the electric-mechanical vibration converter 1
according to the present invention is applied to a sofa 45. In this case, lateral vibration is given to
the seat 46 of the sofa 45. Also in this case, as in the case shown in FIG. 7, it does not act like a
woofer, the vibration transmission efficiency is improved, and there is no possibility of being
pushed by a person, so there is no sense of discomfort or damage.
[0035]
As described above, according to the present invention, the rod-shaped magnetic body and the Eshaped magnetic body are disposed in the same plane, and the coil is divided and wound. The
vibration transducer can be formed thin. In addition, since the vibration direction of the housing
for giving vibration to the vibration target is the planar direction of the electric-mechanical
vibration converter, the human-body mounting object can be obtained by attaching a thin
electric-mechanical vibration converter to the human-body mounting object. Can give lateral
vibration. As a result, a part of the human body mounting member does not act as a diaphragm
with a large area, and it is not possible to generate unnecessary bass acoustic radiation.
10-05-2019
11
Therefore, the balance with the sound emitted by the speaker is not broken.
[0036]
As described above, since the electric / mechanical vibration transducer can be attached to the
human body mounting object to give lateral vibration to the human body mounting object, the
human body can be mounted even if the electric / mechanical vibration transducer is attached to
the edge of the human body mounting object The lateral vibration is transmitted to the whole
mounting object, and the electric / mechanical vibration converter can be mounted avoiding the
position where the user of the human mounting object is seated or lying down. Therefore, there
is no possibility that the electric / mechanical vibration converter is damaged by being pushed by
the user without giving a sense of discomfort to the user. In addition, since the lateral vibration is
applied to the vibrating body, the vibration transmission efficiency is improved.
10-05-2019
12
Документ
Категория
Без категории
Просмотров
0
Размер файла
23 Кб
Теги
jph0514996
1/--страниц
Пожаловаться на содержимое документа