JPH0761195B2 - Electric / mechanical vibration converter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromechanical vibration converter which receives a low-frequency current such as a voice signal to generate a mechanical signal.

The present inventor et al. Have long researched a perceptual acoustic device that receives a signal from an acoustic device or the like, converts it into mechanical vibration, and receives this vibration along with the sound from a speaker or headphones. Many patent rights or utility model rights have been acquired (Japanese Patent Publication No. 58-251).
No. 7, JP-B-57-9272, JP-B-58-
9640 JP, Japanese Utility Model 64-6622, JP-Utility Model
58-4316, etc.).

In each of these publications, an electric / mechanical vibration converter is embedded in a human body placing object or attached to a human body placing object so that the vibration generated by the electric / mechanical vibration converting element is generated. The structure was given to the human body through the human body placing object.

[0004]

In the case where the vibration of the electric / mechanical vibration converter is sensed by the user's body through the human body placing object as described above, the conventional electric / mechanical vibration converter is used.
Since the priority was placed on the function and conversion efficiency of the mechanical vibration converter, there was a tendency to delay consideration of the size and sound output of the electric / mechanical vibration converter and the vibration direction of the human body placing object. . That is, conventional electricity
Mechanical vibration converters generate vibration output in the axial direction such as magnets and coils.When this is horizontally mounted on a human body placing object such as a rug, and the human body placing object is vertically vibrated, the human body placing object is A part may act as a large-area diaphragm. Thus, there is a problem in that when the human body placement object acts as a diaphragm, unnecessary low-frequency sound radiation may occur. When the human body mounting object to which the electric / mechanical vibration converter is attached emits low-frequency sound, the balance with the sound emitted from the speaker is destroyed. What is required of the electric / mechanical vibration converter is that no sound is generated even if it vibrates.

Further, in the case of vertically vibrating a human body placing object such as a rug using an electric / mechanical vibration converter of a type in which a vibration output is generated in the axial direction of a magnet, a coil, etc., in view of its structure. , The user may feel uncomfortable because he / she will sit or lie on the top of the part to which the electric / mechanical vibration converter is attached, and in some cases, it may affect the vibration transmission efficiency. There is a risk that the electric / mechanical vibration converter may be damaged by the load of the user or the like on the human body placing object.

For this reason, when lateral vibration is applied to the human body placing object in the lateral direction, unnecessary low-tone acoustic radiation does not occur. This is because the rigidity of the human body placing object is increased and only the necessary vibration is transmitted well. Further, if the lateral vibration is applied from the lateral direction, it is not necessary to dispose the electric / mechanical vibration converter at the portion of the human body placement object on which the user's load is applied. Therefore, in the case of laterally vibrating a human body placing object using a conventional electric / mechanical vibration converter, an L-shaped bracket or the like is attached to a side portion of the human body placing object, and the electric / mechanical vibration converter is attached to the bracket or the like. If it is mounted vertically and a vibration output generated in the axial direction is applied to the human body placing object via a bracket or the like, the human body placing object will vibrate laterally. However, if the electric / mechanical vibration converter is arranged vertically to the side of the human body mounting object in this way, it will be a hindrance to the user and the appearance will be poor.

The present invention has been made in view of this point, and it is an object of the present invention to provide an electromechanical vibration converter whose overall shape is thin and whose vibration direction is the plane direction thereof. .

[0008]

As a means for solving the above problems, the present invention provides a rod on the inner wall of a flat housing.
Jo of a magnetic material is fixed, it is opposed to both ends of the U-shaped magnetic member at both ends of the magnetic body of said rod-like by providing a small gap, 該Ko shaped
Supporting the magnetic body in the housing via a damper
In addition, a coil for receiving a low-frequency current such as an audio signal is wound and the coil is connected to a low-frequency signal source to obtain an electromechanical vibration converter.

[0009]

According to this structure, when the voice current from the acoustic device is applied to the coil, the magnetic circuit is generated between the magnetic body wound around the coil and the magnetic circuit generated in the other magnetic body. "suction, repel" the by magnetic interference effect occurs that would be vibrated along the mass flat surface Howe <br/> managing against the magnetic body which is supported by the damper. this
Mount with the flat surface of the housing aligned with the surface of the human body mounting object
By virtue of this, lateral vibration is applied to the human body placing object. In addition, the coil is divided into two at both ends of the U-shaped magnetic body.
The housing can be reduced in thickness by winding it around.

[0010]

EXAMPLE An electric / mechanical vibration converter 1 according to the present invention is described below.
The principle will be described with reference to FIG. 1 and FIGS. 2 to 5 showing the actual structure. Reference numeral 2 is a rod-shaped magnetic body, and in this case, it is a magnetized magnet. Both ends of a core 3 which is a non-magnetized magnetic body are opposed to the magnet 2 with a minute gap d of about 3 to 5 mm provided. The magnet 2 which is both magnetic bodies and the magnet 2 which is one of the magnetic bodies of the core 3 are fixed to the inner wall of the flat housing 4 by the bolts 5, and the other magnetic body is a U-shape. The core 3 of the
It is vibratably supported inside . As the housing 4, in this embodiment, as shown in FIGS.
Formed in a thin shape by joining two plates 4a and 4b together
is doing.

As a concrete structure of the supporting portion of the core 3, as shown in FIG. 4, on the damper 6 side, the end portion of the damper 6 formed of an elastic plate having a U-shaped portion is placed inside the housing 4. It is supported by a retainer 8 provided, and the damper 7 side is provided with a hole 9 in the center and a large number of slits 10 on the outside thereof as shown in FIG. It is fixed. The damper 6 side is fixed to the core 3 by means such as adhesion to the end of the bobbin 14 around which the coil 13 is wound, and the damper 7 side is fixed to the core 3 by the damper 7.
This is done by adhering the boss 16 attached to the damper 7 to the damper 7 or the like.

The core 3 is U-shaped, and two coils 13 wound around a bobbin 14 are mounted on the parallel portion of the core 3. The coil 13 generates a magnetic force by a low frequency current such as a voice current which is an output signal of the audio device.
The two coils 13 are selected in a wire diameter such that amperage turns are made as much as possible and the outer shape does not become too large, and the two coils 13 are wound and connected in series or in parallel so as to obtain a standard impedance.

An electric / mechanical vibration converter 1 having such a configuration
Since one of the magnetic bodies is the magnet 2, the magnetic force lines are constantly generated, and the magnetic force lines extend to the core 3 side. In this state, when an audio current that has been signal-processed, such as being passed through a low-pass filter, is passed from the audio device 17, which is a signal source, to the coil 13, the core 3 that becomes an electromagnet by this
Changes its polarity instantaneously (N, S shown in FIG. 1). Therefore, a magnetic interference action of "attraction and repulsion" is generated between the magnet 2 and the magnet 2 whose polarity does not change. Due to this magnetic interference effect, the quality of the core 3 suspended by the damper
Vibrate the housing 4 with respect to the quantity . And conventional
The flat surface of the housing 4 is placed on the human body according to the mounting method.
By mounting the electric / mechanical vibration converter 1 in conformity with the surface of the human body, the human body placing object is laterally vibrated.

6 and 7 show a modification of the electromechanical vibration converter 1. In FIG. 6, a core 18 is used instead of the magnet 2 in FIG. 1, a magnet 19 is placed in the center instead of the core 3, and a magnetic body 21 in which a core 20 is bonded to both ends of the core 19 is used. Is assumed to have been wound. In FIG. 7, the relationship between the magnet 19 and the core 20 shown in FIG. 6 is reversed, and the coil 20 is wound around the core 20. In these structures, the magnetic field lines of the magnet 19 that are constantly generated are
Vibration is obtained by the action of strengthening or weakening the sound current applied to 13.

The electric / mechanical vibration converter 1 described above is
The ampere turn can be earned as much as possible for the two coils 13, 13.
In addition, a coil having a wire diameter that does not make the outer shape of the coil 13 too large is selected and wound, and connected in series or in parallel so as to obtain a standard impedance. By manufacturing the coil 13 in this way and disposing the core 3 and the like in the horizontal plane, the electromechanical vibration converter 1 can be made considerably thin.

Next, the electric / mechanical vibration converter 1 having the above structure.
An example of a human body placing object using is explained. 8 and 9 are embedded in the rug 22, and the electric / mechanical vibration converter 1 is embedded in the rug 22 that is composed of the net 23 and the cushioning material 24 surrounding the net 23, and as shown in FIG. It generates a large lateral vibration. 10 to 12 show the structure, and FIG. 10 shows a plan view with a part cut away.
11 is a cross section taken along the line DD of FIG. 10, and FIG. 12 is an enlarged cross section of the portion indicated by arrow E in FIG.

The structure shown in FIGS. 13 and 14 is an improvement of the structure shown in FIGS. 8 and 9 so that an electric / electrical material is provided in the vicinity of both ends of the rug 22.
The mechanical vibration converter 1 is embedded. In this case, the vibration of the electric / mechanical vibration converter 1 is generated in the vicinity of both ends of the rug 22, which is suitable for the rug 22 having a large area.

A thick rug 25 is shown in FIGS. 15 and 16.
Is the case. This rug 25 is one in which a continuous U-shaped intermediate member 28 is sandwiched between an upper cloth 26 and a lower cloth 27, and the electric / mechanical vibration converter 1 is provided on both sides of the center of the intermediate member 28. It was supported. In this case, it can be made thicker (higher) than those in FIGS. Intermediate member
From the shape of 28, it is strong against a load from above, and the vibration in the horizontal direction is well performed.

The ones shown in FIGS. 17 and 18 are also shown in FIGS.
Although it is almost the same as that shown in 16, the mounting location of the electric / mechanical vibration converter 1 is changed so that it faces when seated.

FIGS. 19 to 22 show a case where the electromechanical vibration converter 1 according to the present invention is applied to a floor 29 for aerobics of a fitness club, where 30 is a leg and 31 is an insulator. In the case of this embodiment, when actuated, vibration as indicated by the arrow in FIG. 21 is generated.

23 to 24 show an application example to the bed 32, in which the mat 34 having the electromechanical vibration converter 1 mounted on both sides is placed at the center of the mattress 33. In this case, the vibration shown by the arrow in FIG. 24 can be obtained.

FIG. 25 shows the electric / mechanical vibration converter 1 of the present invention applied to a nap bed 36 in the cab of a large truck. In this case, it is preferable that the electric / mechanical vibration converter 1 is installed on the foot side to generate vibration as shown by an arrow in FIG.

FIG. 27 shows a case where the mat 38 used in the bath 37 is applied. In this case, the electric / mechanical vibration converter 1 is housed in the mat 38 in consideration of waterproofness, and a voice current is passed through it. Then, the vibration shown by the arrow in FIG. 28 is obtained.

29 to 31 show a rug 39 for a toilet in which the electric / mechanical vibration converter 1 is housed.
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. Figure 30 and Figure 31
Reference numeral 41 in FIG. 1 denotes a speaker, which is mounted on the wall so that the angle can be varied.

FIGS. 32 to 34 show the electric / mechanical vibration converter 1 of the present invention incorporated in the footrest plate 42 of a person sitting on an office chair. There is a notch 43 formed in a part of the notch 43 and the notch 43 is engaged with the leg 44 of the chair.

FIGS. 35 and 36 show the case where the electromechanical vibration converter 1 according to the present invention is applied to the sofa 45. In this case, the seat portion of the sofa 45 vibrates laterally.

[0027]

The present invention is an electric / mechanical vibration converter configured as described above, and the vibration direction of the electric / mechanical vibration converter that has been widely used in the past is orthogonal to the mounting surface.
Therefore, it was easy to generate low-pitched sound radiation.
・ If the mechanical vibration converter is installed in the same way as in the past , lateral vibration can be applied to the human body object. For this reason, a part of the human body placement object does not act as a large-area diaphragm, and unnecessary low-tone acoustic radiation is not generated. Therefore, the balance with the sound radiated by the speaker is not lost.

In this way, the electric / mechanical vibration converter is flattened.
Since the horizontal surface can be applied to the human body mounting object by aligning the flat surface with the surface of the human body mounting object, mount the electric / mechanical vibration converter avoiding the position where the human body mounting object is seated or lying down by the user. You can Therefore, the user does not feel uncomfortable and there is no risk of damaging the electric / mechanical vibration converter. Further, it does not affect the vibration transmission efficiency. Further, since the electric / mechanical vibration converter is manufactured to be thin and mounted horizontally on the human body mounting object, it does not disturb the user and the appearance does not deteriorate.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing the principle of an electric / mechanical vibration converter according to the present invention.

FIG. 2 is a plan view showing the structure of an electric / mechanical vibration converter according to the present invention.

FIG. 3 is an arrow view of the structure shown in FIG. 2 taken along line AA.

FIG. 4 is a view of the thing of FIG. 2 seen along the line BB.

FIG. 5 is a view of the thing of FIG. 2 seen along the line CC.

FIG. 6 is a plan view showing a modification of the structure of the electromechanical vibration converter according to the present invention.

FIG. 7 is a plan view showing another modification of the structure of the electromechanical vibration converter according to the present invention.

FIG. 8 is a perspective view showing an example in which the electromechanical vibration converter according to the present invention is provided in a rug.

9 is a side view of that of FIG. 8. FIG.

FIG. 10 is a plan view showing a mounting state of the electric / mechanical vibration converter with a part of FIG. 8 cut away.

11 is a cross-sectional view taken along the line DD of FIG.

12 is an enlarged view of a portion indicated by an arrow E in FIG.

FIG. 13 is a perspective view showing an example in which the electromechanical vibration converter according to the present invention is provided at both ends in a rug having a large area.

FIG. 14 is a side view of that of FIG.

FIG. 15 is a perspective view showing an example in which the electromechanical vibration converter according to the present invention is provided in a thick rug.

FIG. 16 is a side view showing a state in which the user stands up on the one shown in FIG. 15.

FIG. 17 shows an electric / mechanical vibration converter according to the present invention.
It is a perspective view which shows the example provided in the rug of a larger area than the thing.

FIG. 18 is a side view of that of FIG.

FIG. 19 is a perspective view showing an example in which the electric / mechanical vibration converter according to the present invention is applied to an aerobic floor.

20 is a front view of that of FIG. 19. FIG.

FIG. 21 is a plan view of that of FIG.

22 is a side view of that of FIG. 19. FIG.

FIG. 23 is a perspective view showing an example in which the electromechanical vibration converter according to the present invention is applied to a bed.

FIG. 24 is a plan view of that of FIG. 23.

FIG. 25 is a perspective view showing an example in which the electric / mechanical vibration converter according to the present invention is applied to a nap bed in the cab of a large truck.

FIG. 26 is a side view of that of FIG. 25.

FIG. 27 is a perspective view showing an example in which the electromechanical vibration converter according to the present invention is applied to a mat used in a bathtub.

28 is a side view showing a cross section of the bathtub portion of FIG. 27. FIG.

FIG. 29 is a perspective view showing an example in which the electric / mechanical vibration converter according to the present invention is applied to a toilet rug.

30 is a plan view of that of FIG. 29. FIG.

FIG. 31 is a side view showing a usage state of the thing of FIG. 29.

FIG. 32 is a perspective view showing an example in which the electric / mechanical vibration converter according to the present invention is incorporated in a footrest plate of a person sitting on an office chair.

FIG. 33 is a side view showing a partial cross section of a main part of FIG. 32.

34 is a perspective view showing a state where the footrest plate in FIG. 32 is separated from the chair. FIG.

FIG. 35 is a perspective view showing a case where the electric / mechanical vibration converter according to the present invention is applied to a sofa.

FIG. 36 is a side view of that of FIG. 35.

[Explanation of symbols]

 1 Electro-mechanical vibration converter 2 Magnet 3 Core 4 Housing 6 Damper 7 Damper 13 Coil 17 Acoustic equipment

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display area H04R 5/02 G

Claims (1)

[Claims] 1. A rod-shaped magnetic body on the inner wall of a flat housing.
Were fixed, both ends of the U-shaped magnetic member at both ends of the magnetic body of the rod-shaped are opposed by providing microvoids, before the該Ko shaped magnetic member
An electromechanical vibration converter, characterized in that the coil is supported on the housing via a damper, and a coil that receives a low-frequency current such as an audio signal is wound and the coil is connected to a low-frequency signal source.