JPH072154B2 - Bathtub speaker and bass sound system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a bathtub speaker using various types of bathtubs such as a polytub, a stainless steel bath, and an enameled bath having good vibration transmission as a sounding body, and a bathtub thereof. The present invention relates to a bass sound system that generates stereo sound using a speaker.

[Conventional technology]

It has been a long time since a sound reproducing device using a wall plate or a ceiling as an acoustic vibrating body, for example, a wall speaker was proposed.

This type of speaker has, for example, the following configuration. That is, by fixing a voice coil to a diaphragm, arranging this in a porcelain circuit composed of a yoke and a magnet, and attaching the diaphragm to a plate such as a wall or ceiling, The sound is generated from the body (see, for example, JP-B-45-23466 and JP-B-53-50410).

By using such a wall-mounted speaker, it is not necessary to provide a speaker box or the like in the room, so that the entire space can be effectively used, and moreover, the entire indoor space can be used as a sound field to uniformly generate effective sound. You can

Therefore, it is particularly suitable for flushing back ground music in factories, offices, hospitals and the like. Further, in recent years, the field of use thereof is not limited to indoor wall portions and ceilings, but has expanded to furniture such as softers and beds.

On the other hand, recently, the role of the "ofuro" has changed dramatically in our homes. From the place of simply warming up in hot water to washing and cleansing our body, we can heal the fatigue of the day and relax our body and soul. It is being reviewed as a place where you can do it.

For this reason, it has become popular to install a bathtub from which air bubbles and jet jets are emitted and to install various kinds of equipment such as multifunctional showers, in addition to making the bathroom wide and bright.

[Problems to be Solved by the Invention]

Although the wall-mounted speaker has various advantages as a sound generator as described above, the generated sound is propagated to the person in the room by using air as a medium, and the person almost only hears it by his / her ear. Since the sound is sensed, the way of enjoying music and the like is not so different from the case of using a general speaker.

Also, when a sound source unit similar to a wall speaker is attached to a softer or bed, not only the acoustic vibration generated by it is transmitted to the user's ear through the air, but also directly through clothes. Since it is also transmitted to the user's body, it is possible to feel the music and feel the pine surge effect due to the vibration, but since the acoustic vibration is transmitted only to the part of the body that is in contact with the soft surface or the bed, the local vibration However, the effect was not sufficient.

Furthermore, as mentioned above, the "ofuro" has been re-examined as a place for relaxation and health promotion where you can relax both physically and mentally.Therefore, various developments have been made regarding the bathroom and its equipment, but in the past it was stable and pleasant. In order to obtain music, the use of music and its acoustic vibration, which are expected to have an extremely large effect, has not been sufficiently achieved.

The present invention has been made in view of the above-mentioned circumstances, and enables the user to experience music with the whole body, double the enjoyment of bathing, heal tiredness while enjoying a comfortable mood, and improve health. The purpose is to do.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a bathtub speaker and a bass sound system as follows.

In the bathtub speaker according to the present invention, a voice coil fixed to a dish-shaped frame is arranged in a magnetic circuit formed by a magnet and a yoke held in the frame via a damper to form a sound source unit. The sound source unit is fixed to the outer surface of the side wall of the bathtub by closely adhering the peripheral portion of the frame, and the sound source unit is caused to vibrate to generate a sound source.

Further, the bass sound system according to the present invention uses at least one pair of the sound source units, and firmly fixes the sound source units to the both side walls of the bathtub having the voids outside the both side walls by closely contacting the peripheral portion of the frame, The left and right channel signals generated by a stereo signal generator such as a cassette disc, a CD player, and an FFM stereo tuner are each amplified by a stereo amplifier,
It is configured to supply separately to the voice coil of each sound source unit fixed to both side walls of the bathtub, and at least the left and right side walls of the bathtub are operated by the operation of each sound source unit according to the signals of the left and right channels. As a sounding body, a stereo sound is generated.

[Action]

The bathtub speaker according to the present invention configured as described above,
When an electric signal whose frequency and amplitude change according to music or the like is applied to the voice coil, the sound source unit vibrates and vibrates the side wall of the bathtub through the frame. As a result, the entire bathtub acts as a sounding body to generate sound, and at the time of bathing, the acoustic vibration is propagated to the whole body of the bather using the bath water in the bathtub as a medium, and at the same time, the air in the bathroom is used as a medium. Is also transmitted to the ear.

Therefore, bathers can not only listen to music from their ears but also feel it through their skin, and since the density of water is much higher than the density of air, the propagation of sound waves is good.
It is transmitted almost uniformly over the part of the body of the bather who is connected to the water (generally from the shoulder down), and it can be felt by the whole body.

Therefore, you can enjoy the sensation of not only listening to your liking music from your ears but also your whole body, and with the effect of improving the blood circulation and relaxing fatigue, you can relax and relieve stress both physically and mentally. it can.

In addition, the vibrational effect on the whole body due to acoustic vibration has a pine surge effect in medicine, which is also effective for promoting health.

Further, the bass sound system according to the present invention is a system for more effectively obtaining the above-mentioned effects by using the bathtub speaker, and stereo sound from both side walls of the bathtub is used in the bathroom. It spreads three-dimensionally in the space of, and bathers can hear it from both ears,
Since you can directly experience it through the bath water, you can experience a magnificent and realistic feeling with your whole body.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of a bathtub speaker according to the present invention, FIG. 2 is a vertical sectional view showing the sound source unit, and FIG. 3 is a front view showing the sound source unit without a moisture prevention plate.

First, the structure of the sound source unit 10 which is the sound source of the bathtub speaker of this embodiment will be described with reference to FIGS.

Reference numeral 1 denotes a dish-shaped frame, which is integrally molded in a dish-like shape with a heat-resistant ABS resin as shown in the drawing, and which has a central recessed portion 1a, a shoulder portion 1b for supporting a sounding and vibrating portion, and a mounting edge portion 1c. There is.

The central concave portion 1a of the frame 1 is composed of an annular magnet 2, a yoke plate 3, and a bottom yoke 6 having an integral structure having a pole portion 4 and a yoke portion 5,
A sounding vibration part 12 forming a magnetic circuit is housed and held by a shoulder part 1b thereof via a damper 7 made of stainless steel.

Further, the central cylindrical portion 8a of the aluminum fixing plate 8 whose outer peripheral portion is fixed to the shoulder portion 1b of the frame 1 is projected into the magnetic circuit between the yoke plate 3 and the pole portion 4 of the bottom yoke 6, A voice coil 9 is provided on the outer circumference of the central cylindrical portion 8a.
Is wrapped around.

Further, inside the mounting edge 1c of the frame 1, a step portion 1d is formed at a position recessed from the mounting surface, and a moisture prevention plate 11 made of an aluminum plate is stretched over the step portion 1d. This is merely provided for the purpose of preventing moisture, and the outer surface of the side wall 20a of the bathtub shown in phantom in FIG. 2 and the mounting edge portion 1c of the frame 1 are not completely adhered to each other, and the moisture from the gap between them is not completely formed. This is for the purpose of preventing the noise from entering and adversely affecting the internal sounding vibration part 12, so that the moisture prevention plate 11 is unnecessary if the above-mentioned adhesion is guaranteed to be perfect.

The sound source unit 10 is attached to the side wall 20a of the bathtub 20 as shown in FIG.
The attachment surface of c is brought into close contact with and fixed to the outer surface of the side wall 21a to form a bathtub speaker.

In addition, when the moisture prevention plate 11 is provided,
When it is not provided, the distance D between the step portion 1d of the frame 1 and the mounting surface of the mounting edge portion 1c of the frame 1 is at least
It is desirable to set it to 5 mm or more.

The reason is that as shown in Fig. 1, the sound source unit 10 is used as a bathtub.
When the bathtub W is placed in the bathtub 20 while being attached to the sidewall 20a of the bathtub 20 to form the bathtub speaker, the sidewall 20a of the bathtub 20 is
Is bent outward due to the weight of the bath water W, and the curved portion does not come into contact with the sounding vibration part 12 and break the adhesive bond between the side wall 20a and the mounting edge 1c of the frame 1. This is because.

In addition, various baths such as synthetic resin, stainless steel, horo bath, etc. are used for the ordinary bathtub, but regardless of the material and form, generally the double structure shown in the figure is used, Since the width E of the space E between the inner wall and the outer wall is about 3 to 5 cm, it is easy to mount the above-mentioned sound source unit 10 which can be formed thin.

In addition, a commercially available heat-resistant adhesive or the like may be used for the attachment.

According to this embodiment, when an electric signal whose frequency and amplitude change according to a source signal such as music is applied to the voice coil 9 of the sound source unit 10 which constitutes the bathtub speaker, it is fixed. Vibration is generated between the voice coil 9 and the movable sounding vibration part 12.

The vibration vibrates the side wall 20a of the bathtub 20 through the frame 1, and the entire bathtub 20 produces a sound.
The acoustic vibration is propagated to the whole body of the bather by using the bath water W in the bathtub 20 as a medium, and at the same time is also propagated to the bather's ear by using the air in the bathroom as a medium.

As a result, the bather can not only listen to music, but also experience it, and since the density of water is much higher than the density of air, the sound waves can propagate well and the bath water of the bather's body It is propagated almost uniformly over the part connected to W (generally from the shoulder down), and it can be felt by the whole body.

Therefore, you can enjoy the pleasure of not only listening to your liking music from your ears but also your whole body, and in addition to the effect of improving the blood circulation with hot water to relieve tiredness, you can relax and relieve stress both physically and mentally. it can.

In addition, the vibration effect on the whole body due to acoustic vibration has a pine surge effect in medicine, which is also effective for promoting health.

In this embodiment, the sound source unit 10 is connected to the side wall 20a of the bath 20.
Although it is attached to the outer surface of the above, it may be attached to the bottom surface or the edge as long as it has a void.

Next, a configuration example of the bass sound system according to the present invention will be described with reference to a fourth example.

In this embodiment, a pair of sound source units 10L and 10R similar to the above-described sound source unit 10 are respectively placed in the gaps E1 and E2 between the opposite left and right side walls 20a, 20b and the outer walls 20c, 20d of the bathtub 20, respectively. Then, the mounting edge portion 1c (see FIG. 2) of each frame 1 is closely attached and fixed to the outer surface of each side wall 20a, 20b to form a stereo bathtub speaker.

Also, on the inner wall surface of the bathroom where the bathtub 20 is installed, an audio device storage portion 21 having a waterproof type opening / closing lid 21a with a window is provided, and an FM stereo tuner, a cassette disk, and a CD player are provided as a stereo signal. An audio device including a generator 22 and an amplifier 23 for amplifying and outputting the signals of the left and right channels generated by the generator 22 is housed and installed.

Then, the left channel signal (Lc
h) is separately supplied to the voice coil 9 of the sound source unit 10L via the signal line 24 (see FIG. 2), and the right channel signal (Rch) is separately supplied to the voice coil 9 of the sound source unit 10R via the signal line 25. .

According to this system, when taking a bath, either FM stereo tuner, cassette disk, or CD player of the stereo signal generator 22 is selected to receive FM stereo broadcast, stereo cassette tape is played back, or a compact disc is used. By reproducing, a stereo signal such as favorite music can be generated, and the left and right channel signals of the stereo signal are amplified by the amplifier 23, respectively, and the side walls 20a of the bathtub 20 are respectively amplified by the respective signals. The pair of sound source units 10L and 10R fixed to the terminals 20 and 20b are operated.

Thereby, the vibrations generated by the sound source units 10L, 10R are transmitted to both side walls 20a, 20b of the bathtub 20, respectively.
Stereo sound is generated by using it as a sounding body.

The respective acoustic vibrations are propagated to the whole body of the bather M by using the bath water W in the bathtub 20 as a medium, as shown by the arrow lines.
The acoustic vibration of a is mainly propagated to the left half of the body, and the acoustic vibration of the side wall 20b is mainly propagated to the right half of the body.

At the same time, the direct sound from the bathtub 20 and the reflected sound from the wall surface and the ceiling are propagated to the left and right ears of the bather M by using the air in the bathroom as a medium.

Therefore, the bather M can not only listen to the stereo sound through his / her ears but also experience it with his / her whole body, and can experience the majestic and magnificent feeling full of reality.

As a result, the effect of relieving stress both physically and mentally and relieving stress is further enhanced.

Further, as in the above-mentioned embodiment, the pine surge effect due to the vibration effect on the whole body by the acoustic vibration can be obtained.

As the stereo signal generator 22, a commercially available one can be used as appropriate, and any one of an FM stereo tuner, a cassette deck (of course for DAT), a CD player, etc.
One unit may be used, or a plurality of units may be combined. Alternatively, the amplifier 23 may be integrated.

The audio device housing 21 may be provided outside the bathroom in order to avoid moisture. In that case, a wireless or wired remote control device is provided to start the stereo signal generator 22 while the bather M takes a bath. It is recommended to be able to remotely control stop and song selection.

Also, install only the stereo signal generator outside the bathroom,
A transmitter may be used to wirelessly transmit a stereo signal, which may be received by a receiver in the bathroom and sent to an amplifier.

〔The invention's effect〕

As described above, when the bathtub speaker according to the present invention is used, the bathtub itself serves as a sounding body to generate a sound corresponding to an electric signal such as music flowing in the voice coil. Not only can you hear it from your ears, but you can also feel it through your skin using the bath water as a medium from the whole bathtub, and because the density of water is much higher than the density of air, the sound wave propagation is good, and It is propagated almost uniformly over the part of the body that is connected to the hot water, and you can experience it throughout the body.

Therefore, in addition to the effect of improving the blood circulation by the hot water to relieve fatigue, the effect of relaxing the stress by relaxing the mind and body is extremely large.

In addition, the vibration effect on the whole body due to acoustic vibration has a pine surge effect in medicine, which is also effective for promoting health.

Also, if you configure a stereo bass sound system,
Stereo sound from both side walls of the bathtub spreads three-dimensionally in the space inside the bathroom, and bathers can hear it from both ears and can directly experience it through the bath, so it is magnificent and magnificent. You can fully enjoy the mood.

[Brief description of drawings]

FIG. 1 is a sectional view of a bathtub speaker according to the present invention, FIG. 2 is a longitudinal sectional view showing the sound source unit, FIG. 3 is a front view showing the sound source unit without a moisture prevention plate, and FIG. FIG. 3 is a schematic diagram of a configuration example of a bass sound system according to FIG. 1 ... Frame, 2 ... Annular magnet 3 ... Yoke plate, 6 ... Bottom yoke 7 ... Damper, 8 ... Fixing plate 8a ... Central cylindrical part, 9 ... Voice coil 10,10L, 10R ... Sound source unit 11 ... Moisture prevention plate, 12 Sounding vibration part 20 ... Bathtub, 20a, 20b ... Side wall 21 ... Audio device housing 22 ... Stereo signal generator 23 ... Amplifier, W ... Bath water, M ... Bather

Claims (2)

[Claims] 1. A sound source unit is constructed by arranging a voice coil fixed to a dish-shaped frame in a magnetic circuit formed by a magnet and a yoke held in the frame through a damper. A bathtub speaker, wherein a sound source unit is fixed to an outer surface of a side wall of a bathtub by closely adhering a peripheral portion of the frame, and vibration is generated by the vibration of the sound source unit using the bathtub as a sounding body. 2. A voice coil fixed to a dish-shaped frame, and at least a pair of sound source units arranged in a magnetic circuit formed by a magnet and a yoke held in the frame via a damper. A bathtub having a gap at least on the outside of both side walls for fixing the sound source unit to the both side walls by closely adhering the peripheral portions of the frame to each other, and a stereo signal generator such as a cassette deck, a CD player, an FM stereo tuner, etc. And a stereo amplifier that amplifies the left and right channel signals generated by the stereo signal generator and supplies them individually to the voice coils of each sound source unit fixed to both side walls of the bathtub. By operating each of the sound source units according to the signals of the left and right channels, at least the left and right side walls of the bathtub are used as sounding bodies. Bus sound system, characterized in that so as to generate stereo sound.