JPS585636B2 - Acoustic vibration element for installation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention generates bodily sensation vibrations using audio signals in the bass range, in order to make people feel heavy bass through vibrations of the eardrum and bodily sensation vibrations, The present invention relates to an acoustic vibration element that can be placed on a cushion material so that the device can be used as a human body device for sensing deep bass sounds.

As the frequency of sound decreases from around 150 Hz, the proportion of the sound that is felt by the body as air vibration as sound pressure increases, rather than being confirmed with the ears due to the vibration of the eardrum.

So-called heavy bass sounds are air vibrations whose sound pressure is felt not only by the ears but also by the skin and body, and when the vibrations felt by the body and the auditory sense overlap, a person can truly feel deep bass sounds. .

Therefore, in order to ideally increase the feeling of heavy bass,
2. Description of the Related Art An object placed on a human body has been developed that generates bodily-sensible vibrations that are synchronized with an audio signal that drives a speaker or the like.

However, conventionally, human body mounts used for acoustics are
The structure itself is different from those commercially available, and therefore the human body support must be purchased separately.

Therefore, the present invention is a commercially available human body mount, and if it is furniture that has cushioning material attached to the surface side, the commercially available human body mount can be used for acoustic purposes by simply laying it on the surface side. The device is characterized in that it can be used as a human body mount.

Embodiments of the present invention will be described below with reference to the drawings.

First, the structure of the electro-mechanical vibration converter V in the present invention will be explained.

In Fig. 1, a case body 1 of an electro-mechanical vibration converter is shown.
is composed of frames 2 and 3 with a four-shaped cross section;
A horizontally extending plate-shaped flange portion is integrally provided on the peripheral edge of the opening of 3, and the flange portions 4 and 5 They are combined by pitting like-minded people against each other.

An outer peripheral edge 6a of an annular damper 6 made of an elastic material is sandwiched between the flanges 4 and 5 of the frames 2 and 3, and the inner peripheral edge 6a of the damper 6 is directed in the opposite direction to the flanges 4 and 5. It extends horizontally inward of the frames 2 and 3.

Next, a yoke including a magnetic pole 10 installed inside the case body 1 will be described.

The yoke 8 has a bottom plate 9 having a columnar part 9a in the center.
and an annular top plate 11.

An annular magnetic pole 10 is mounted and fixed on the bottom plate 9 with a columnar part 9a loosely fitted therein, and a top plate 11 is attached to the magnetic pole 10.
The inner edge 11a of the bottom plate 9 and the outer edge 9 of the columnar part 9a of the bottom plate 9
A magnetic annular gap 12 is formed between the bottom plate 9, the magnetic pole 10, and the top plate 11, and a magnetic circuit extending south through the gap 12 is formed.

Then, in order to support the yoke 8 in the case body 1 at a plane position including the air gap 12, the outer edge of the top plate 11 and the magnetic pole 1
An inner circumferential edge 6b of a damper 6 is integrally fixed to a step 13 formed by the end face of the damper 6, and the damper 6 allows the case body 1 and the yoke 1 to be relatively displaceable.

In addition, in this embodiment, the yoke 8 is attached to the case body 1 with a gap 1.
2, the top plate 11
Although the damper 6 is integrally fixed to the stepped portion 13 between the yoke 8 and the magnetic pole 10, the mounting structure of the yoke 8 and the damper 6 is not limited to this. Any structure may be used as long as it can be disposed inside the case and its outer peripheral edge 6a can be fixed to the case body 1, and its inner peripheral edge can be fixed to the yoke 8.

In this case, the gap 12 includes a gap 12 that is perpendicular to the axis of the gap 12 (the axis extending in the vertical direction in FIG. 1) and that passes through the center of the vertical width of the gap 12 in FIG. It is most desirable that the yoke 8 be supported by the damper 6 on the case body 1 in a flat position.

Furthermore, the frames 2 and 3 are not limited to those having a dish-like cross section. It may be of any shape.

An opening 14 is formed in the center of the frame 3, and the opening 14
has a cylindrical coil frame 1 attached to a plate 15a.
5 are fitted, and the plate 15a is connected to the coil frame 15b.
is integrally fixed to the frame 3, and a coil 16 wound around the coil frame 15 is disposed within the gap 12.

Next, the relationship between the electro-mechanical vibration converter and the diaphragm described above will be explained based on FIGS. 1 to 3.

Reference numeral 17 denotes a flat diaphragm, and the diaphragm 17 is made of foam, such as polyurethane foam with a foaming degree of 20 to 30 times, and vibrates well in the bass range, and is lightweight and rigid.
Furthermore, it is made of a flexible member that can be laid along the cushioning material 19 attached to the upper surface of the human body support.

A mounting hole 18 is bored in the diaphragm 17, and while the electro-mechanical vibration converter is loosely fitted into the mounting hole 18, the flanges 4 and 5 of the case body 1 are attached to the plate surface of the diaphragm 17. It is placed and fixed in the diaphragm 17 and embedded in the diaphragm 17.

The thickness of the diaphragm 17 is slightly thicker than the thickness of the electro-mechanical vibration converter, and together with its own rigidity, it prevents the case body 1 from coming into direct contact with a rigid body. ing.

Furthermore, since the diaphragm 17 has fixed rigidity, the diaphragm 17
It has the function of distributing and supporting the load of the human body, etc. applied to the diaphragm 17.
It is designed to vibrate effectively.

Note that the diaphragm 17 is not limited to a foam material such as foamed polyurethane, but should vibrate well in the low frequency range, be lightweight, and be flexible enough to be laid along the cushioning material 19. If the case body 1 is rigid enough to disperse and support the weight of a human body, etc. when it is added to it, and prevent the case body 1 from coming into direct contact with the rigid body. A diaphragm of the same type is also suitable.

Note that the cushioning material 19 includes a urethane foam attached to the body-mounted object, a cloth stretched over the frame of the human-body-mounted object, etc. In short, the cushioning material 19 is attached to the human body-mounted object and includes a material on which the diaphragm 17 is placed. The cushioning material 19 may be any cushioning material for a human body placement device as long as it works so as not to suppress the vibration of the diaphragm 17 in the case where the cushioning material 19 is placed on a human body.

Furthermore, an elastic body 20 such as urethane phonium or sponge is pasted on the surface of the diaphragm 17 on the side that comes into contact with the human body, so as to eliminate discomfort when the diaphragm 17 comes into contact with the human body.

21 is a connector for connecting the electro-mechanical vibration converter V to a low-pass filter (not shown).

On the back side of the diaphragm 17, there is a cushioning material 1 for the human body holder.
9 is used and nothing is pasted on it, so the case body 1 is exposed, so a protection plate 22 is attached to protect the electro-mechanical vibration converter V.

Although the protective plate 22 is added in the embodiment, it is not necessarily necessary.

It should be noted that examples of objects placed on a human body include cushions, chairs (including not only household chairs but also chairs for vehicles), sofas, beds, and the like.

In this device, a diaphragm 17 is laid along a cushion material 19 of the human body support.

In this way, the cushioning material 19 prevents the diaphragm 17 from coming into direct contact with a rigid body such as a floor surface.

In this state, when the coil 16 is energized with an audio signal that drives a speaker of an audio device through a low-pass filter, the magnetic interference between the magnetic force generated in the coil 16 and the magnetic force of the magnetic pole 10 causes the signal to be transmitted to the case via the damper 6. Main body 1
The yoke 8 supported by the yoke 8 and the case body 1 are displaced relative to each other, and a bodily vibration is generated.

This vibration is transmitted to the diaphragm 17 through the case body 1, the diaphragm 17 vibrates, and the vibration is transmitted to the human body via the elastic body 20.

The vibration of the diaphragm 17 is synchronized with the audio signal heard by the ears and is based on the audio signal in the bass range, so it is effective as a vibration when feeling deep bass.

Note that a more desirable vibration effect can be obtained by variously changing the material or thickness of the damper.

Further, the cutoff frequency of the low-pass filter varies depending on the sound source, but it is preferably about 150Hz.

In this case, when a person lowers his or her hips onto the diaphragm 17,
The load is distributed and supported by the diaphragm 17 itself, and the cushioning material 19 prevents the transducer V from coming into direct contact with the floor etc.
Therefore, the vibration of the diaphragm 17 is no longer suppressed, and it will continue to vibrate under any conditions.

It should be noted that since the person listening to music through the speakers is far from the speakers and there is a distance between them and the converter V, it is effective to connect a delay circuit.

As described above, the present invention has a structure in which an electro-mechanical vibration converter has a structure in which a yoke is installed inside a case body so that the case body and the yoke can be relatively displaced, and an output is taken out from the case body. is embedded in the diaphragm so that it does not protrude from the front and back surfaces of the diaphragm, and this diaphragm is laid along the cushioning material of the human body placement device, so it can be used simply on commercially available human body placement devices. This device placed on the human body can be used as a device for sensing deep bass sounds, and is extremely economically valuable.

In addition, the electro-mechanical vibration converter is embedded within the diaphragm so that it does not protrude from the front and back surfaces of the diaphragm, and the overall thickness of the diaphragm can be reduced, so the user does not feel any discomfort when using it. .

Furthermore, it is effective not only for listening to music but also for medical purposes depending on the selection of music to be played.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the relationship between a diaphragm and an electro-mechanical vibration converter in the present invention. FIG. 2 is a plan view of the acoustic vibration element according to the present invention with the elastic body removed. FIG. 3 is a sectional view showing the state of use. 1...Case body, 17...Diaphragm,
20...Elastic body, V...Electro-mechanical vibration converter.

Claims (1)

[Claims] 1. An electro-mechanical vibration transducer that is driven by a low-frequency audio signal and outputs vibration to its case body is transmitted through the case body to an electromechanical vibration converter that has good vibration, is lightweight, and is rigid, and is also able to fit along the cushioning material of the human body placement device. The electro-mechanical vibration converter is installed on a diaphragm that can be laid down, and the electro-mechanical vibration converter is buried within the diaphragm so that it does not protrude from the front and back surfaces of the diaphragm, and the electro-mechanical vibration converter is installed on one side of the diaphragm to prevent discomfort from contact with the diaphragm. An acoustic vibration element for installation, characterized in that it is provided with an elastic body that is removed.