JP2011140772A - Sanitary washing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary washing apparatus that improves amenity of a toilet space with a hypersonic effect, and can be configured to be compact at low cost. <P>SOLUTION: The sanitary washing apparatus includes: a toilet seat 6 placing on a toilet bowl 2; a toilet cover 5 for covering an opening of the toilet bowl 2 and the toilet seat; an apparatus body 15 pivotally supporting the toilet seat and the toilet cover 5; a high frequency signal generating unit 10 for generating a high frequency signal which has a predetermined period within 20 kHz to 100 kHz; a high frequency sound supply unit 16 for converting a sinusoidal signal generated in the high frequency signal generating unit 10 into a high frequency sound; and a control unit 27. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a sanitary washing apparatus having audio equipment.

  As a sanitary washing device for washing a user's local area at the time of a stool, various improvements have been made in order to improve the comfort felt by the user by making the toilet room a relaxing space. As one of the means, there has been proposed a means for reproducing favorite music in a toilet room by adding sound equipment to a sanitary washing apparatus.

  For example, as shown in FIG. 10 (see FIG. 1 of Patent Document 1), a remote controller device 101 and a player 102 are provided in a toilet room 100 in which a toilet is disposed, and a speaker 104 is provided in a storage case 103 for use. There has been proposed a toilet seat device having a toilet acoustic system in which music played by the player 102 is played by the speaker 104 by the user operating the remote controller device 101 and the reproduced sound is flown into the toilet room 100 ( (See Patent Document 1).

  Further, in recent years, it has been experimentally proved that a hypersonic effect can be obtained by applying an environmental sound in a frequency range exceeding the audible frequency range to a human together with a sound in the audible frequency range.

  As specific means, there is one as shown in FIG. As shown in the figure, the signal disc 105 in the SACD format, the SACD player 106 that reproduces the signal disc 105, and the electric signal from the SACD player 106 are separated into an audible frequency component (LF) and a high frequency component (HF). There has been proposed an environment setting device including an amplifier 107, a power amplifier 108 that amplifies the electric signals separated by the preamplifier 107, a speaker 109 that reproduces audible frequency components, and a super tweeter 110 that reproduces high-frequency sound. (See FIG. 61 of Patent Document 2).

  In the urban space type environment, there are many sources of sound of 10 KHz or less, and even if there is a sound source of high frequency components, the sound of high frequency components is easily attenuated due to the influence of disturbed buildings, etc. Type environment sound).

  In the rainforest environment, because there are few obstacles, the sound of high frequency components is difficult to attenuate. Therefore, the environment is full of rainforest type environmental sounds that contain a lot of sound of high frequency components below 50KHz in addition to the audible noise. It can be said.

  The latter invention creates an environment full of tropical rainforest natural environment sounds including frequency components of 20 KHz or more, and activates the human brain core to realize an environment that is friendly to the human brain.

JP 2004-116092 A Japanese Patent Laid-Open No. 2005-111261

However, the toilet acoustic system shown in Patent Document 1 is a compact disc (CD
When recording sound on a recording medium such as a mini-disc (MD), the sound signal is recorded and reproduced while being sampled with a sampling signal of 44.1 kHz, so only a sound signal up to about 20 KHz can be reproduced. The technology of Patent Document 2 cannot be simply applied to the acoustic system of Patent Document 1.

  Therefore, in order to obtain the hypersonic effect, a large-capacity memory for storing sound information including a high frequency component of 20 KHz or more is required, and a device for reproducing the information stored in the memory is also required. However, these devices are not cheap and there is room for improvement from the viewpoint of providing an inexpensive system.

  In addition, the conventional environment setting device described in Patent Document 2 described above requires many circuit blocks in order to obtain the hypersonic effect, and requires a super tweeter 110 and a speaker 109, like a toilet space. There is a problem that the apparatus is too large to be installed in a limited space.

  Further, in the above-mentioned Patent Document 2, regarding the rainforest type environmental sound, “unsteady fluctuation structure (fluctuation sound structure having no fixed period) is a sound source used for the research of the present inventors in the subsequent examination. It is necessary to replace this super-high-frequency component with a steady-state band noise that has the same average power spectrum and without fluctuations, or change it into a periodic sine wave. It is because it loses or leads to a negative effect ”(see paragraph [0565] of Patent Document 2).

  The present invention has been made in view of the above-described problems of the prior art, and the present inventors have conducted experiments to study the room for improvement and have come to the present invention. An object of the present invention is to provide a sanitary washing apparatus that can improve the comfort of a toilet space by the hypersonic effect and can be configured at low cost and in a small size.

  As a result of intensive studies to achieve the above-mentioned object, the present inventors have proposed “unsteady fluctuation structure (constant constant)” proposed in Patent Document 2 even when a sinusoidal sound having periodicity is used. In the same manner as in the case of using the “fluctuation structure not having the period of“

  That is, the sanitary washing device of the present invention is a device main body placed on a toilet having an opening for toilet, and is pivotally supported by the device main body and placed on the opening of the toilet. A toilet seat having a seating surface on which a user sits in a state in which the user sits, a toilet lid pivotally supported by the apparatus body to cover the opening and the toilet seat, and a range of 20 kHz to 100 kHz A high-frequency signal generator that generates a sine wave signal having a predetermined period, a high-frequency sound supply unit that converts the sine wave signal into a high-frequency sound, and a controller that controls at least the operation of the high-frequency signal generator. (Claim 1).

  With this configuration, when the user sits on the toilet seat and activates the device, a high-frequency sound of a predetermined frequency is emitted from the high-frequency sound supply unit, and the stimulation of the high-frequency sound is transmitted from the user's ear or skin to the brain. Hypersonic effect to relax the person can be obtained, and the comfort when staying in the toilet space can be improved. Further, since this satellite cleaning device can be configured with a small number of circuit blocks without using a storage medium such as a CD or a memory, the entire device can be configured in a small size and at low cost.

  Furthermore, in the sanitary washing device of the present invention, it is preferable that the high-frequency signal generating unit is provided in the apparatus main body, and the high-frequency sound supply unit is provided in the toilet lid (claim 2).

  As a result, high-frequency sound emitted from the high-frequency sound supply unit is transmitted to the user from the close distance of the user's back without being affected by obstacles, etc., and does not attenuate high-frequency sound that propagates in the space. The high frequency sound that the person accepts can be increased. Accordingly, the hypersonic effect can be surely given to the user, and the comfort of the toilet space can be improved.

  Furthermore, in the sanitary washing device of the present invention, it is preferable that the high-frequency signal generation unit and the high-frequency sound supply unit are provided on the toilet lid (claim 3).

  As a result, the high-frequency sound emitted from the high-frequency sound supply unit is transmitted to the user from the close distance of the user's back without being affected by obstacles, so the high-frequency sound that is propagating in the space is not attenuated. The high frequency sound that the user accepts can be increased. And a hypersonic effect can be reliably given to a user, and the comfort of a toilet space can be improved. Furthermore, by providing the high-frequency signal generator and the high-frequency sound supply unit close to each other, it is possible to prevent incoming noise from being mixed when an electrical signal is transmitted between the high-frequency signal generator and the high-frequency sound supply unit. And high-frequency sound without distortion.

  In the sanitary washing apparatus of the present invention, it is preferable that at least the high-frequency sound supply unit is provided in the apparatus body.

  Thus, by supplying high-frequency sound from a short distance to the user, attenuation of high-frequency sound in the air can be reduced, and high-frequency sound accepted by the user can be increased. For this reason, a hypersonic effect can be reliably given to the user, and the comfort of the toilet space can be improved. In addition, the weight of the toilet lid can be reduced, and the load on the toilet lid movable part can be reduced.

  Furthermore, the sanitary washing device of the present invention preferably has a remote controller provided separately from the device main body, and a high-frequency signal generator and a high-frequency sound supply unit are preferably provided in the remote controller ( Claim 5).

  With this configuration, if the remote controller is installed on the wall of the toilet space, etc., the high-frequency sound emitted from the high-frequency sound supply unit is supplied to the user from the close range of the user without being affected by obstacles, etc. A hypersonic effect can be reliably given to the user, and the comfort of the toilet space can be improved. Further, if the remote controller is removed from the wall or the like, the high-frequency sound supply unit can be carried, and a hypersonic effect can be given to the user even if the user is in a space other than the toilet space.

  Moreover, it is preferable that the sanitary washing apparatus of this invention is used in the range whose distance of a high frequency sound supply part and a user is 10 cm-100 cm (Claim 6).

  With this configuration, it is possible to transmit the high frequency sound emitted from the high frequency sound supply unit to the user without being attenuated, increase the high frequency sound that the user accepts, and obtain the hypersonic effect more effectively, The comfort in the toilet space can be sufficiently improved.

  Furthermore, it is preferable that the sanitary washing device of the present invention has an informing means for informing the operating state of the high-frequency sound supply unit (claim 7).

  Thereby, the high-frequency sound can be visually displayed by the notification means, and it can be easily visually determined whether or not the high-frequency sound is supplied.

  Further, the sanitary washing device of the present invention preferably controls the operation of the high-frequency signal generator so that the sound pressure level of the high-frequency sound is higher than the sound pressure level of the noise in the toilet space. .

  As a result, the high-frequency sound emitted from the high-frequency sound supply unit transmits a stimulus from the user's ear to the brain, and a hypersonic effect that relaxes the user is obtained, so comfort when staying in the toilet space Can be improved.

  According to the sanitary washing device of the present invention, a high-frequency sound of a predetermined period is supplied to a user seated on a toilet seat, and the stimulation of the high-frequency sound is transmitted from the user's ear or skin to the brain, thereby relaxing the user. Can be obtained and the comfort of the toilet space can be improved. Further, the entire apparatus can be configured with a small number of circuit blocks, and the entire apparatus can be configured in a small size and at low cost.

1 is an external view of a sanitary washing device according to a first embodiment of the present invention. A perspective view showing an example of a remote controller in the sanitary washing device The block diagram which shows the circuit structure of the remote controller and apparatus main body in the sanitary washing apparatus External view showing a sanitary washing device according to a second embodiment of the present invention. The perspective view which shows an example of the remote controller in the sanitary washing apparatus which concerns on 3rd Embodiment of this invention. Schematic of the remote controller in the sanitary washing device according to the fourth embodiment of the present invention. Sound quality subjective evaluation chart in the embodiment EEG changes diagram in the example Sound pressure level diagram of high-frequency sound supply unit in the embodiment External view showing a conventional sanitary washing device described in Patent Document 1 Block diagram of a conventional environment setting device described in Patent Document 2

  Hereinafter, preferred embodiments of the sanitary washing device of the present invention will be described in detail with reference to the drawings. In the following description, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
Hereinafter, the sanitary washing device 1 of the first embodiment will be described. FIG. 1 is an external view showing a first embodiment of a sanitary washing device of the present invention.

  As shown in FIG. 1, a toilet room (toilet space) 3 includes a toilet 2 having a toilet opening, a wash water tank 19 storing wash water to be supplied to the toilet 2, and washing from a water pipe. A water supply pipe (not shown) for supplying cleaning water to the water tank 19 is provided.

  The sanitary washing device 1 mainly includes a human body detection unit 4, a toilet lid 5, a toilet seat 6, a remote controller 14, a device main body 15, and an electric cable 7. The satellite cleaning device 1 is placed on the opening of the toilet 2, and the electric cable 7 is connected to an outlet provided on the wall surface of the toilet room 3. In addition, the remote controller 14 of the sanitary washing device 1 is usually provided with a fixture (not shown) at a predetermined location on the wall of the toilet room 3 and is detachably accommodated in the fixture.

  First, the toilet seat 6 will be described.

  The toilet seat 6 is pivotally supported with respect to the apparatus main body 15 and has a seating surface on which a user sits in a state of being placed on the opening of the toilet bowl 2. A heater (not shown) for heating the seating surface is built in the toilet seat 6.

  Next, the human body detection unit 4 will be described.

  The human body detection unit 4 shown in FIG. 1 detects whether or not the user has entered the toilet room and transmits the detection information to the apparatus main body 15. The human body detection unit 4 is attached in a place where it is easy to detect a user who enters or leaves the toilet room 3 in the installation environment of the sanitary washing device 1, for example, near the entrance of the toilet room 3.

  For example, an optical sensor such as a reflective infrared sensor having an infrared light emitting unit and an infrared light receiving unit is preferably used as the human body detection unit 4. When an infrared sensor is employed as the human body detection unit 4, the human body detection unit 4 reflects the infrared rays emitted from the light emitting unit against the user's body entering the toilet room 3, and detects the reflected infrared rays as a seating detection. Light is received by the light receiving unit of the unit 18 and information indicating whether the user has entered the toilet room 3 is detected.

  Next, the remote controller 14 will be described.

  FIG. 2 is a schematic diagram illustrating an example of a remote controller in the sanitary washing device.

  As shown in FIG. 2, switches such as a butt switch 20, a bidet switch 21, a drying switch 22, an indicator 23, an adjustment switch 24, a stop switch 25, and a healing switch 26 are provided on the front surface of the remote controller 14. .

  When the user operates each of the switches, the remote controller 14 is configured to wirelessly transmit a predetermined signal corresponding to the operation of each switch from the remote controller 14 to the control unit 27 (see FIG. 3) of the apparatus body 15. ing. Further, a control unit 27 (see FIG. 3) of the apparatus main body 15 to be described later is configured to control operations of the respective components of the apparatus main body 15 and the toilet seat 6 based on signals received from the remote controller 14.

  For example, when the user operates the butt switch 20 or the bidet switch 21, the control unit 27 is activated in accordance with the switch operation, and washing water is ejected from the nozzle 8 (see FIGS. 1 and 4) to the user's local area. It is comprised so that. Then, when the user operates the adjustment switch 24, the flow rate, pressure, and the like (washing water strength) of the washing water ejected to the user's local area can be adjusted.

  As shown in FIG. 2, an indicator 23 is provided on the left side of the adjustment switch 24 on the front surface of the remote controller 14. The indicator 23 can display the strength of the cleaning water that is changed by the operation of the adjustment switch 24 in five steps, and can visually recognize the user in five steps.

  Further, when the user operates the stop switch 25, the control unit 27 is activated according to the operation of the stop switch 25, and the washing water ejected from the nozzle 8 to the user's local part is stopped.

Further, when the user operates the drying switch 22, the control unit 27 is activated according to the operation of the drying switch 22, and hot air blows out from the drying means 9 (see FIG. 3) toward the user's local area and its surroundings. It is configured as follows. And if a user operates the adjustment switch 24, the temperature of the warm air blown can be adjusted. In addition, when the adjustment switch 24 is operated while blowing warm air, the indicator 23 displays the temperature of the warm air that is changed by the operation of the adjustment switch 24 in five stages. Further, when the user operates the stop switch 25, the control unit 27 is operated according to the operation of the stop switch 25, and the blowing of warm air from the drying means 9 to the local part of the user is stopped.

  When the user operates the healing switch 26, the control unit 27 is activated in accordance with the operation of the healing switch 26, and a high-frequency signal is generated by the high-frequency signal generating unit 10 (see FIG. 3) described later. The supply part 16 (refer FIG. 1, FIG. 3) is comprised so that the high frequency signal may be converted into a high frequency sound and supplied to a user.

  Further, at this time, when the user operates the adjustment switch 24, the volume of the high-frequency sound supplied to the user from the high-frequency sound supply unit 16, which will be described later, can be adjusted. It can be adjusted to the magnitude of the high frequency sound. That is, when the user operates the adjustment switch 24, the ultrasonic control unit 11 (see FIG. 3) controls the control signal given to the oscillation circuit 12, thereby oscillating output (high frequency signal) of the oscillation circuit 12 (see FIG. 3). ) Is changed, and the sound pressure level of the high frequency sound emitted from the high frequency sound supply unit 16 is adjusted so that a moderately high frequency sound can be supplied to the user.

  When the user operates the stop switch 25, the control unit 27 is activated according to the operation of the stop switch 25, the generation of the high-frequency signal by the high-frequency signal generation unit 10 is stopped, and the high-frequency sound supply unit 16 sends it to the user. The high frequency sound supplied is configured to stop.

  As means for stopping the high frequency signal, the control signal supplied from the ultrasonic control unit 11 to the oscillation circuit 12 is set to zero, the oscillation output of the oscillation circuit 12 is set to zero, and the high frequency sound output from the high frequency sound supply unit 16 is output. You may stop, and you may interrupt | block the wiring which connects between the oscillation circuit 12 and the high frequency sound supply part 16. FIG. Further, the power supply voltage supplied to the power supply line (not shown) of the high frequency signal generator 10 including the oscillation circuit 12 may be cut off.

  Next, the toilet lid 5 will be described.

  The toilet lid 5 is pivotally supported with respect to the apparatus main body 15 so as to be rotatable. A high-frequency sound supply unit 16 is disposed on the back surface of the toilet lid 5, and converts a high-frequency signal generated by the high-frequency signal generation unit 10 into a high-frequency sound so that a high-frequency sound is transmitted to the user from a close distance behind the user. It is configured to supply. Here, the back surface of the toilet lid 5 is a surface facing the back surface of the user seated on the toilet seat 6.

  Next, the apparatus main body 15 will be described.

  FIG. 3 is a block diagram showing configurations of the remote controller 14 and the apparatus main body 15 in the sanitary washing apparatus shown in FIG.

  As shown in FIGS. 1 and 3, the apparatus main body 15 mainly includes a cleaning nozzle 8 that jets cleaning water to the user's local area, and a drying that blows warm air to the user's local area and its periphery after the cleaning. Means 9, high-frequency signal generator 10 for generating a high-frequency signal, high-frequency sound supply unit 16 for converting a high-frequency signal generated by high-frequency signal generator 10 into a high-frequency sound, and seating detection for detecting that a user is seated The unit 18 and the control unit 27 are included.

  The control unit 27 controls operations of the cleaning nozzle 8, the drying unit 9, and the high frequency signal generation unit 10 based on signals transmitted from the human body detection unit 4, the remote controller 14, and the seating detection unit 18. Further, the apparatus body 15 incorporates a toilet lid automatic opening / closing mechanism (not shown) that automatically opens and closes the toilet lid 5 based on a detection signal detected by the human body detection unit 4 when the user enters the room.

  Next, the seating detection unit 18 will be described.

  As shown in FIG. 1, the seating detection unit 18 is provided on the upper surface of the apparatus body 15, that is, at a position higher than the toilet seat 6. For example, an optical sensor such as a reflective infrared sensor having an infrared light emitting unit and an infrared light receiving unit. A sensor is preferably employed. When an infrared sensor is adopted as the seating detection unit 18, the seating detection unit 18 reflects the reflected infrared light by reflecting the infrared rays emitted from the infrared light emitting unit against the user's body seated on the seating surface of the toilet seat 6. Light can be received by the infrared light receiving unit of the seating detection unit 18 to detect whether the user is seated.

  Next, the high frequency signal generator 10 will be described.

  As shown in FIG. 3, the high-frequency signal generator 10 includes an ultrasonic controller 11 and an oscillation circuit 12.

  The ultrasonic control unit 11 is connected to the control unit 27, generates two analog control signals based on the digital control signal from the control unit 27, and oscillates according to the first and second analog control signals. The operation of the circuit 12 is controlled.

  In addition, the oscillation frequency of the oscillation circuit 12 is determined by the constants of the circuit elements constituting the circuit, and the oscillation frequency can be modulated by changing the constants of the circuit elements according to the level of the first analog control signal. It oscillates with a sine wave (voltage) with a predetermined period that is frequency-modulated within a frequency range of ˜100 kHz. Then, the oscillation output level of the oscillation circuit 12 is controlled by the second analog control signal applied from the ultrasonic control unit 11. The output of the oscillation circuit 12 is connected to the high-frequency sound supply unit 16 via the connection cord 17, and the amplitude of the high-frequency signal can be modulated according to the level of the second control signal.

  The oscillation circuit 12 may be configured by a circuit network in which a capacitor (not shown), a resistance element (not shown), and a variable resistance circuit (not shown) are combined. In this case, the oscillation frequency can be varied by controlling the first analog control signal applied to the variable resistance circuit to vary the resistance characteristic of the variable resistance circuit.

  Moreover, the oscillation circuit 12 may comprise a resonance circuit by a gyrator circuit (not shown) and a capacitor (not shown), and an oscillation circuit may be constituted by a circuit network including the resonance circuit. In this case, the oscillation frequency depending on the resonance frequency can be varied by controlling the first analog control signal applied to the gyrator circuit to vary the inductance value characteristic of the gyrator circuit. Further, an oscillation circuit may be configured by incorporating a vibrator such as a piezoelectric element.

  Next, the high frequency sound supply unit 16 converts the high frequency signal applied from the output of the high frequency signal generation unit 10 (or the oscillation circuit 12) into a high frequency sound and outputs it. Thereby, the high frequency sound supply part 16 can supply a high frequency sound of 20 kHz to 100 kHz to the user. The high-frequency sound supply unit 16 is not particularly limited as long as it can convert an electrical signal into a sound wave. For example, a piezoelectric device or a speaker can be used.

  Hereinafter, the control operation in the control unit 27 will be described with reference to FIGS. 1, 2, and 3.

  When the user enters the toilet room 3, the human body detection unit 4 detects the user's room entry, and the human body detection unit 4 transmits a human body detection signal to the control unit 27 of the apparatus main body 15. At the same time, the toilet lid 5 is automatically opened. Thereafter, when the user operates the healing switch 26 of the remote controller 14, the operation signal is transmitted to the control unit 27, and the control unit 27 transmits a digital control signal to the ultrasonic control unit 11. Then, the ultrasonic control unit 11 generates first and second analog control signals corresponding to the digital control signal, and supplies the control signal to the oscillation circuit 12.

  The oscillation circuit 12 oscillates with a sine wave having a predetermined period of 20 kHz to 100 kHz, and supplies a high frequency signal as an oscillation output to the high frequency sound supply unit 16. The high frequency sound supply unit 16 converts the high frequency signal into a high frequency sound wave and supplies the high frequency sound to the user.

  As shown in FIG. 1, when the user sits on the toilet seat 6 with the high-frequency sound supply unit 16 provided on the back surface of the toilet lid 5 and with the toilet lid 5 opened and inverted, the user can approach the user from a distance close to the user's back surface. Since the high-frequency sound can be supplied toward the user, the high-frequency sound can be prevented from being attenuated before reaching the user from the high-frequency sound supply unit 16, and the high-frequency sound accepted by the user can be increased. And the hypersonic effect which relaxes a user's brain is fully acquired, and the comfort in a toilet space can be improved. Further, the sanitary washing apparatus of the present invention does not need to store and reproduce high-frequency sound in a memory, so that the circuit is configured simply, and the entire sanitary washing apparatus can be configured in a small size and at low cost.

  In addition, since the high-frequency sound supply unit 16 is provided on the toilet lid 5, high-frequency sound emitted from the high-frequency sound supply unit 16 is supplied to the user without being affected by obstacles. The hypersonic effect can be given to the toilet and the comfort of the toilet space can be improved.

  In addition, by supplying high frequency sound from a distance close to the back of the user, attenuation of high frequency sound in the air can be reduced, and high frequency sound accepted by the user can be increased. Then, by reducing the wiring distance between the high-frequency signal generator 10 and the high-frequency sound supply unit 16, it is possible to suppress noise from being mixed into the wiring connecting the high-frequency signal generator 10 and the high-frequency sound supply unit 16. Therefore, it is possible to supply high-frequency sound with less noise and distortion to the user.

  In addition, although this embodiment mentioned above demonstrated the form which provided the high frequency signal generation part 10 in the apparatus main body 15, and provided the high frequency sound supply part 16 in the toilet lid 5, it is not limited to this, A high frequency signal Even if the generator 10 and the high-frequency sound supply unit 16 are provided on the toilet lid 5, the same effect can be obtained.

(Second Embodiment)
Hereinafter, a sanitary washing device according to a second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 4 is an external view showing the sanitary washing device of the second embodiment.

  The sanitary washing apparatus according to the second embodiment is different from the sanitary washing apparatus according to the first embodiment in that the high-frequency signal generating unit 10 and the high-frequency sound supply unit 16 are provided in the apparatus body 15. The same parts as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As in the first embodiment described above, it is preferable to provide a gap between the high-frequency sound supply unit 16 and the user from the viewpoint of more reliably giving the user a hypersonic effect. Therefore, the distance between the high frequency sound supply unit 16 and the user is preferably 10 cm to 100 cm.

  Therefore, when the high frequency sound supply unit 16 is provided in the apparatus main body 15, it is preferably provided in the sleeve portion 15 a of the apparatus main body 15.

  With this configuration, it is possible to reduce the attenuation of high-frequency sound in the air by supplying high-frequency sound from a close distance to the user, and increase the high-frequency sound accepted by the user. For this reason, a hypersonic effect can be reliably given to the user, and the comfort of the toilet space can be improved.

  Moreover, since the high-frequency signal generation unit 10 and the high-frequency sound supply unit are provided in the apparatus main body 15, the toilet lid 5 can be reduced in weight, and the load on the toilet lid movable unit can be reduced.

(Third embodiment)
Hereinafter, a sanitary washing device according to a third embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is an external view showing the sanitary washing device of the third embodiment.

  The sanitary washing device according to the third embodiment is different from the sanitary washing devices according to the first and second embodiments in that the high-frequency signal generator 10 and the high-frequency sound supply unit 16 are provided in the remote controller 14. Yes, the same parts as those of the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 5, by providing the high frequency sound supply unit 16 in the remote controller 14, the high frequency sound supplied from the high frequency sound supply unit 16 is supplied to the user without being affected by an obstacle, The hypersonic effect can be surely given to the user, and the comfort when the user is in the toilet room 3 can be improved.

  Further, the remote controller 14 incorporating the high-frequency sound supply unit 16 can be freely carried by a person, and can give a hypersonic effect to the user even in a living space other than the toilet room 3 where the remote controller 14 is carried. it can.

(Fourth embodiment)
Hereinafter, a sanitary washing device according to a fourth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 6 is a schematic view showing a remote controller in the sanitary washing device of the fourth embodiment.

  The sanitary washing apparatus according to the fourth embodiment is different from the sanitary washing apparatus according to the first to third embodiments in that a notification means 30 is provided in the remote controller 14 and the first to third embodiments. The same parts are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 6, the notification means 30 visually notifies the user that the high-frequency signal generating unit 10 is operating, and when the high-frequency sound supply unit 16 emits high-frequency sound. It may be a display element such as a lighted LED or a lamp, or may be a display device that displays ON / OFF of the operating state in a printed form, or a display device that displays the magnitude of the high-frequency signal.

  The sanitary washing device obtains a hypersonic effect that relaxes the mental state of the user by giving a high-frequency sound stimulus of 20 KHz or more from the high-frequency sound supply unit 16 to the user's brain. It improves comfort when you are inside. However, whether or not the high-frequency sound supply unit 16 emits a high-frequency sound cannot be determined by human hearing.

By turning on the notification means 30 according to the operation of the high-frequency signal generator 10, it can be determined that a high-frequency sound is emitted from the high-frequency sound supply section 16, and when the notification means 30 is turned on, the high-frequency sound When is stopped, the user can judge visually.

  Therefore, when the user has made a mistake in operating the healing switch 26 of the remote controller 14 and the frequency signal generation unit 10 of the sanitary washing device has not been activated, the user is informed that the notification means 30 has been turned off. Can be confirmed and the stop state of the frequency signal generator 10 can be confirmed. Then, when the user operates the healing switch 26 again, the frequency signal generating unit 10 can be operated to obtain the hypersonic effect. In addition, it can be confirmed that the sanitary washing device is stopped when the notification means 30 is turned off, and the operating state of the sanitary washing device can be visually confirmed even if high-frequency sound is not heard by human ears. Can do.

  Hereinafter, the sanitary washing apparatus of the present invention will be described in more detail with reference to examples and comparative examples, but the present invention is not limited to these examples.

  In general, from the viewpoint of effectively providing the user with a hypersonic effect, the high-frequency sound supplied to the user is not a stable sound with a fixed period, but a natural environment in a high-frequency region having an unsteady fluctuation structure. It was said that sound is desirable and music with an unsteady fluctuation structure is needed.

  However, as a result of intensive studies, the present inventors have used a high-frequency sound (artificial sound) with a predetermined period instead of a high-frequency natural environment sound having an unsteady fluctuation structure even in a noise environment such as white noise. Even so, it has been found that the hypersonic effect can be obtained in the same manner as the natural environmental sound in the high frequency range.

  Hereinafter, the result will be described in detail.

Example 1
Under the conditions shown below, a sound including a high-frequency sound supplied to the user from the high-frequency sound supply unit 16 of the sanitary washing device shown in FIGS. 1 and 3 was generated.

  That is, as a high-frequency signal having a predetermined period, a sine wave signal centered at a center frequency of 40 kHz is frequency-modulated in a triangular wave shape in a range of 45 kHz to 35 kHz with a period of 0.1 second, and the amplitude (sound pressure) of the sine wave signal is ) With a period of 2 seconds, a high frequency signal is generated that is amplitude-modulated in a triangular wave shape in the range of +5 dB to -5 dB. Then, the high-frequency signal having the predetermined period is supplied to the high-frequency sound supply unit 16 together with the white noise to generate a sound including the high-frequency sound and the white noise.

(Comparative Example 1)
White noise was supplied as audible noise.

(Comparative Example 2)
As a natural environment sound (a sound including a high frequency sound having a fluctuation structure that does not have a constant period), an audible frequency of 20 kHz or less is removed from the music including the high frequency sound, and only the high frequency sound is extracted and white noise is mixed. And supplied.

The white noise described in the first embodiment, the first comparative example, and the second comparative example is assumed to be noise in the toilet space (noise having a sound pressure level of approximately 20 dB to 40 dB). In Example 1, Comparative Example 1, and Comparative Example 2, the sound pressure level of white noise is 40 dB. This is a high value as noise in the toilet, and is a sound pressure level that the user feels noisy as a toilet in the home.

[Sound quality subjective evaluation]
In the sound of Example 1, the sound pressure ratio between high-frequency sound and white noise with a predetermined period was changed and supplied to the subject, and subjective sound quality evaluation was performed. The subjective evaluation of sound quality was performed as perceived by five subjects. Further, the distance between the subject and the speaker (manufactured by Panasonic Corporation, model number SB-SF100) is 10 cm.

  The result of sound quality sovereignty evaluation is shown in FIG. In FIG. 7, the horizontal axis represents the sound pressure ratio between the high frequency sound and white noise supplied to the subject. In addition, the vertical axis is an evaluation of the comfort of sound quality in seven stages, and the subject feels that the subject becomes very uncomfortable as it approaches “0” shown in the vertical axis in FIG. 7, and the vertical axis in FIG. The subject feels that the closer to “6” shown, the more comfortable the subject is.

  Specifically, “0” is “very uncomfortable”, “1” is “uncomfortable”, “2” is “somewhat uncomfortable”, “3” is “neither”, and “4” is “somewhat comfortable”. , “5” was set as “comfortable” and “6” was set as “very comfortable”.

  As is apparent from the results shown in FIG. 7, even when artificial high-frequency sound is supplied to the user, when the sound pressure ratio between the high-frequency sound and white noise supplied to the subject is 1 or more, the subject It was confirmed that the user feels more comfortable than when the sound pressure ratio between the high frequency sound and the white noise is zero (when no high frequency sound is supplied).

[Electroencephalogram measurement]
Three healthy adult male subjects without hearing abnormalities were supplied with the sounds of Example 1, Comparative Example 1, and Comparative Example 2 from a speaker (Panasonic Corporation, model number SB-SF100). EEG was measured. The distance between the subject and the speaker is 100 cm. Further, the sound pressure ratio between the high frequency sound and white noise supplied to the subject is set to “1”.

  Electroencephalogram measurement uses an electroencephalograph (Human Sensing Co., Ltd., product name: Central Rhythm Monitor) to ground the right earlobe and collect brain waves from the occipital region Pz (international 10/20 method) using the left earlobe as a reference. The α wave (8 to 13 Hz) content and β (13 to 30 Hz) content were measured, and the α / β ratio was calculated.

FIG. 8 shows the results of measuring the brain waves (α content / β content) of the subject when the sounds of Example 1, Comparative Example 1, and Comparative Example 2 were supplied. In FIG. 8, the subjects were Example 1, Comparative Example 1,
The α / β ratio of the brain wave of the subject before supplying each sound of Comparative Example 2 is set to “1”. In FIG. 8, the vertical axis represents the amount of change in the α / β ratio of the subject's brain waves.

  In general, in the measurement of the electroencephalogram α / β ratio, it is said that the subject is more relaxed as the α content increases. Therefore, in FIG. 8, compared with the α / β ratio of the brain wave of the subject before supplying each sound of Example 1, Comparative Example 1 and Comparative Example 2 to the subject, Example 1 is compared with the subject. It shows that the subject feels more comfortable as the α / β ratio of the brain wave of the subject increases when the sounds of Example 1 and Comparative Example 2 are supplied.

  Conversely, compared with the α / β ratio of the brain waves of the subject before supplying each subject with the sounds of Example 1, Comparative Example 1, and Comparative Example 2, Example 1, Comparative Example 1, and Comparison It shows that the subject feels uncomfortable as the α / β ratio of the subject's brain wave decreases when each sound of Example 2 is supplied.

  As is apparent from the experimental results shown in FIG. 8, when the white noise sound of Comparative Example 1 is supplied to the subject, the subject's α / β ratio decreases, and the subject listens to the white noise sound in the audible range. It was confirmed that I felt uncomfortable.

  In addition, when the sound of Comparative Example 2 is supplied to the subject, the α / β ratio is prevented from lowering in spite of being in an uncomfortable environment by letting the subject hear the audible white noise sound. It was confirmed that the comfort was improved by the supply.

  Further, when the sound of Example 1 is supplied to the subject, it is recognized that the α / β ratio increases as in the case of Comparative Example 2 or higher, and the user feels by supplying high-frequency sound of a predetermined period. It was confirmed that comfort was further improved.

  From the above experimental results, even when artificial sound is used, a hypersonic effect is obtained by supplying high-frequency sound with a predetermined cycle at a sound pressure level equal to or higher than toilet space noise (about 20 to 40 dB). Can be judged.

[High-frequency sound attenuation reduction effect]
The attenuation reduction effect of high frequency sound according to the distance from the high frequency sound supply unit to the user was measured.

  The measurement of the attenuation reduction effect of high-frequency sound is assumed to be a size that can be incorporated into the toilet lid 5 as a high-frequency sound supply unit, and a 1.2 cm super tweeter (model number SB-SF100, manufactured by Panasonic) that can reproduce up to 98 kHz. As a user, a sound collecting microphone (manufactured by Bruel & Kjer, model number 4136) was used.

  Specifically, a sine wave high frequency signal having a frequency of 20 kHz to 90 kHz was created by a personal computer. The high-frequency signal was amplified by an audio interface (made by NI, trade name AUDIO KONTRLOR1) and an amplifier (manufactured by Panasonic, model number SU-XR57), and the amplified high-frequency signal was reproduced as high-frequency sound from a speaker. Then, the reproduced sound is collected by the above-described sound collecting microphone, and then amplified by an amplifier (manufactured by Kemo, model number VBF8), and then the output voltage of the sound collecting microphone (manufactured by Bruel & Kjer, model number 4136) is The frequency characteristics were analyzed. Further, the output voltage of the sound collecting microphone was measured at five measurement points of 1 cm, 5 cm, 30 cm, 50 cm, and 100 cm as the distance between the sound collecting microphone and the speaker.

FIG. 9 is a characteristic diagram showing the sound pressure level of the high frequency sound with respect to the distance from the high frequency sound supply unit 16 to the user. In FIG. 9, the horizontal axis represents the frequency of the high frequency sound, and the vertical axis represents the dB value converted from the output voltage of the sound collecting microphone.

  FIG. 9 shows that the higher the dB value of the output voltage of the sound collecting microphone, the higher the frequency sound reaches the installation position of the sound collecting microphone, and the higher the distance between the speaker and the sound collecting microphone, the higher the frequency. It was confirmed that the output voltage value of the sound collecting microphone at each frequency of sound decreased.

  Assuming 40 dB as the noise in the toilet space, as shown in FIG. 7, the sound pressure ratio between the high frequency sound and the noise is set to “1” or more from the viewpoint of more effectively giving the user a hypersonic effect. It is preferable to do. From this viewpoint, the distance between the user and the high-frequency sound supply unit 16 is preferably 30 cm or more.

  Even when the distance between the user and the high-frequency sound supply unit 16 is more than 30 cm, the volume of the high-frequency sound is increased so that the sound pressure ratio between the high-frequency sound and the noise becomes “1” or more. As a result, the hypersonic effect can be efficiently given to the user.

  As described above, the sanitary washing device of the present invention reduces the attenuation of high-frequency sound by adopting a configuration that presents high-frequency sound at a close range of the user, and aims to improve comfort by the hypersonic effect. It can also be used for purposes such as improving comfort.

DESCRIPTION OF SYMBOLS 1 Sanitary washing apparatus 2 Toilet bowl 3 Toilet room 4 Human body detection part 5 Toilet lid 6 Toilet seat 7 Electric cable 8 Cleaning nozzle 10 High frequency signal generation part 15 Apparatus main body 16 High frequency sound supply part 18 Seating detection part

Claims (8)

An apparatus body placed on a toilet having an opening for stool;
A toilet seat having a seating surface on which a user sits in a state of being pivotally supported by the apparatus main body and mounted on the opening of the toilet;
A toilet lid that is pivotally supported by the apparatus main body and covers the opening and the toilet seat of the toilet;
A high-frequency signal generator that generates a sine wave signal having a predetermined period within a range of 20 kHz to 100 kHz;
A high-frequency sound supply unit that converts the sine wave signal into a high-frequency sound;
A controller that controls at least the operation of the high-frequency signal generator;
Sanitary washing device equipped with. The sanitary washing device according to claim 1, wherein the high-frequency signal generating unit is provided in the apparatus main body, and the high-frequency sound supply unit is provided in the toilet lid. The sanitary washing device according to claim 1, wherein the high-frequency signal generation unit and the high-frequency sound supply unit are provided on the toilet lid. The sanitary washing device according to claim 1, wherein at least the high-frequency sound supply unit is provided in the device main body. It has a remote controller provided separately from the device body,
The sanitary washing device according to claim 1, wherein the high-frequency signal generation unit and the high-frequency sound supply unit are provided in the remote controller. The sanitary washing device according to any one of claims 1 to 5, wherein a distance between the high-frequency sound supply unit and the user is 10 cm to 100 cm. The sanitary washing device according to any one of claims 1 to 6, further comprising an informing means for informing an operating state of the high-frequency sound supply unit. The said control part controls any operation | movement of the said high frequency signal generation part so that the sound pressure level of the said high frequency sound may become larger than the sound pressure level of the noise in a toilet space. The sanitary washing device according to item.