JP2018009439A - Toilet device and washing method for toilet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet device and a washing method for the toilet device, the washing method being performed using the toilet device, capable of obtaining a high washing effect by making it possible, in irradiating a bowl part with ultraviolet light, to irradiate any positions of the whole surface of an inner surface of the bowl part with ultraviolet light from close distances that are approximately the same.SOLUTION: A toilet device includes at least: a toilet device body; a toilet bowl attached to the toilet device body, the toilet bowl including a bowl part; and an ultraviolet light source for irradiating an inner surface of the bowl part with ultraviolet light. The toilet device includes movement means for making the ultraviolet light source be close to or be apart from the inner surface of the bowl part as well as moving the ultraviolet light source along the inner surface of the bowl part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a toilet device and a method for cleaning a toilet device performed using the toilet device.

  In order to keep the toilet bowl of the toilet device clean, the toilet device is provided with an ultraviolet light source that irradiates ultraviolet rays such as a cold-cathode tube and a light-emitting diode (LED), and during the irradiation of the ultraviolet rays or after the irradiation of the ultraviolet rays is finished. In which functional water such as hypochlorous acid water is sprayed on the bowl of the toilet bowl within a predetermined time (see Patent Document 1).

In the toilet apparatus described in Patent Document 1, a photocatalyst layer is formed on the inner surface of the bowl portion, and by irradiating the photocatalyst layer with ultraviolet rays, active oxygen is generated by surrounding water, oxygen, and the like, The inner surface of the bowl portion is hydrophilized so that the functional water spreads on the inner surface of the bowl portion.
According to this toilet apparatus, the functional water sprayed from the spraying means is distributed, for example, to the back surface of the rim at the rear of the toilet using the flow of air generated by the heat generated by the ultraviolet light source, so that the substantially entire surface of the bowl portion of the toilet is used. It is said that it can be kept clean.

  Further, in Patent Document 2, ultraviolet rays are irradiated from a germicidal lamp such as an ultraviolet light emitting diode (UV-LED) to a water collecting portion of a bowl portion of a toilet bowl or a local washing nozzle of a warm water washing toilet seat. A toilet apparatus that is sterilized is disclosed.

Further, Patent Document 3 discloses a sterilization apparatus in which an inner surface of a bowl portion of a resin toilet bowl is sterilized by irradiation with ultraviolet light.
This sterilization device includes a sterilization unit that emits ultraviolet light, a drive unit that is connected to the sterilization unit and can move the sterilization unit to an arbitrary position, and distance information from the light emission unit of the sterilization unit to the inner surface of the bowl unit And a light emission control unit that controls light emission of the light emitting unit.

JP 2014-163162 A JP 2001-65035 A JP 2015-27326 A JP 2006-20461 A JP, 2006-20462, A Japanese Patent No. 5591305

By the way, the ultraviolet light source disclosed in Patent Document 1 is provided inside the toilet lid, and the distance from the ultraviolet light source to the inner surface of the bowl portion is long, so that the irradiation intensity is not lowered or made uneven due to the diffusion of ultraviolet light. There is nothing.
Moreover, since the toilet apparatus disclosed by patent document 2 irradiates an ultraviolet-ray spotly, the place sterilized is limited.

Furthermore, the sterilization apparatus disclosed in Patent Document 3 uses a xenon tube having a wide irradiation range, and increases the amount of light when irradiating the inner surface of the bowl part far from the light emitting part of the sterilization part. The maximum output of the sterilizing unit needs to be increased in accordance with this, and the power consumption increases as the size of the sterilizing apparatus increases.
Furthermore, it is difficult to irradiate the inner surface of the bowl part far from the light emitting part of the sterilizing part with pinpoint ultraviolet rays, and the sterilizing effect may be uneven due to the difference in the position of the inner surface of the bowl part. .

  In view of such a situation, the present invention can irradiate the bowl part with ultraviolet rays from a substantially similar distance at any position relative to the entire inner surface of the bowl part, It is an object of the present invention to provide a toilet device capable of obtaining a high cleaning effect and a method for cleaning the toilet device performed using the toilet device.

  The inventor applies the concept of so-called scanning irradiation, and while the distance between the ultraviolet light source and the inner surface of the bowl portion that is the irradiated surface of the ultraviolet ray is kept extremely short, If the UV light source can be moved so as to fill the entire inner surface of the bowl, the UV light can be reliably prevented while preventing the UV intensity from decreasing due to diffusion associated with an increase in the distance between the UV light source and the inner surface of the bowl. The present invention has been completed by thinking that a high cleaning effect can be obtained.

That is, the toilet device of the present invention is
Toilet device body,
A toilet attached to the toilet device body and having a bowl portion;
An ultraviolet light source for irradiating the inner surface of the bowl part with ultraviolet light;
A toilet lid that can be opened and closed with respect to the toilet;
A toilet device having at least
The toilet device is
The ultraviolet light source is moved toward or away from the inner surface of the bowl portion, and moving means for moving the ultraviolet light source along the inner surface of the bowl portion is provided.
If such a moving means is provided, it is possible to prevent a decrease in the UV intensity due to diffusion accompanying an increase in the distance between the UV light source and the inner surface of the bowl part, and to ensure that the inner surface of the bowl part is prevented. The entire surface can be irradiated with ultraviolet rays, and a high cleaning effect can be obtained.

The toilet device of the present invention is
The moving means is
The ultraviolet light source is configured to move through a guide rail.
If the ultraviolet light source can be moved through the guide rail in this way, it is possible to reliably irradiate the entire inner surface of the bowl portion with ultraviolet light.

The toilet device of the present invention is
The guide rail is provided on a back surface of a toilet lid provided to be openable and closable with respect to the toilet.
Thus, if the guide rail is provided on the back surface of the toilet lid, the ultraviolet light source and the moving means can be configured separately from the bowl portion, and the maintainability is good.

The toilet device of the present invention is
The ultraviolet light source is configured to be housed in a housing portion provided on the back surface of the toilet lid.
If the UV light source is stored in this way, it is not necessary to look at the UV light source when opening the toilet lid and using the toilet device. If the UV light source opens the toilet lid, Even if it has done, it can prevent having looked directly at the ultraviolet-ray irradiated from the ultraviolet-ray light source.

The toilet device of the present invention is
Comprising a detection sensor for detecting the open / closed state of the toilet lid;
The ultraviolet light source and moving means are activated when the toilet lid is closed.
If such a detection sensor is provided, it is possible to reliably prevent the ultraviolet light source and moving means from being accidentally activated when the toilet lid is in the open state, and furthermore, when the toilet lid is in the closed state. In addition, the ultraviolet light source and the moving means can be automatically activated to set the inner surface of the bowl portion to be cleaned and sterilized.

The toilet device of the present invention is
The guide rail is provided on the back surface of the rim of the bowl portion.
Thus, if it is provided on the back surface of the rim of the bowl portion, for example, when it is necessary to replace the warm water flush toilet seat, the toilet lid can be replaced.
Furthermore, since the back surface of the rim of the bowl portion is usually difficult to visually recognize, the appearance of the toilet device is not impaired and a beautiful appearance can be maintained.

The toilet device of the present invention is
The ultraviolet light source is configured to be stored in a storage unit provided in the toilet device body.
In this way, if the ultraviolet light source is stored in the storage unit provided in the toilet device body, when using the toilet device, it is not necessary to look at the ultraviolet light source, and when the ultraviolet light source opens the toilet lid, Even if it is activated, it is possible to prevent the ultraviolet rays irradiated from the ultraviolet light source from being viewed directly.

The toilet device of the present invention is
The guide rail is arranged in any one of a circular shape, an elliptical shape, a spiral shape, a U shape, a U shape, and a rectangular shape.
If the guide rail has such an arrangement shape, the entire inner surface of the bowl portion can be reliably irradiated with ultraviolet rays.

The toilet device of the present invention is
The wavelength of ultraviolet rays emitted from the ultraviolet light source is 400 nm or less.
Thus, when the wavelength is 400 nm or less, the photocatalytic activation effect and the bactericidal effect described later can be further enhanced.

The toilet device of the present invention is
The ultraviolet light emitted from the ultraviolet light source has at least two different peak wavelengths.
In this way, if the ultraviolet rays have at least two types of peak wavelengths, in addition to the normal sterilization effect, a sterilization effect by a mechanism of damaging DNA, which is another sterilization mechanism, can be obtained. The effect of preventing infectious diseases can be further enhanced.

The toilet device of the present invention is
When the ultraviolet light source is brought close to the inner surface of the bowl part through the moving means,
The distance between the inner surface of the bowl part and the ultraviolet light source is in the range of 0.5 to 15.0 cm.
Within such a distance range, the effect of cleaning and sterilizing the inner surface of the bowl portion by the ultraviolet rays irradiated from the ultraviolet light source can be surely obtained.

The toilet device of the present invention is
The ultraviolet light source is
A light emitting diode module having a substantially rectangular ultraviolet light emitting surface and having a plurality of ultraviolet light emitting diodes.
Such a light-emitting diode module is suitable as an ultraviolet light source because it can be reduced in size, saved in power, extended in life, not used in mercury, instantaneously turned on / off, and the like.

The toilet device of the present invention is
The ultraviolet light source is
It is a rod-shaped light source module having a plurality of ultraviolet light emitting diodes on the side surface of a cylindrical substrate.
Even such a rod-like light source module can be reduced in size, saved in power, extended in life, not used in mercury, instantaneously turned on and off, and is suitable as an ultraviolet light source.

The toilet device of the present invention is
The inner surface of the bowl portion is subjected to a hydrophilic treatment.
If hydrophilic treatment is performed in this manner, the inner surface of the bowl portion is hardly contaminated, and the stain can be easily washed away even when the stain adheres.

The toilet device of the present invention is
An OH radical source aqueous solution consisting of a nonionic substance that decomposes by ultraviolet irradiation in the presence of water and generates OH radicals (hydroxyl radicals) or an aqueous solution in which ions are dissolved is attached to the inner surface of the bowl portion. It has an OH radical source aqueous solution supply means.
Thus, if it has an OH radical source aqueous solution supply means, it can wash away the dirt on the inner surface of a bowl part more certainly than the case where water is simply poured.

The toilet device of the present invention is
The OH radical source aqueous solution is
It is characterized by comprising an aqueous solution in which at least one selected from nitrate ion, nitrite ion and hydrogen peroxide is dissolved.
With such an OH radical source aqueous solution, the dirt on the inner surface of the bowl portion can be surely washed away.

In addition, the method for cleaning the toilet device of the present invention includes:
A toilet device main body, a toilet bowl attached to the toilet device main body, having a bowl portion, an ultraviolet light source for irradiating ultraviolet light to the inner surface of the bowl portion, and the ultraviolet light source approaching or approaching the inner surface of the bowl portion And a moving means for moving the ultraviolet light source along the inner surface of the bowl part, and at least a cleaning method for a toilet apparatus,
The step of bringing the ultraviolet light source closer to the inner surface of the bowl part via the moving means;
Irradiating the inner surface of the bowl part with ultraviolet light while moving the approached ultraviolet light source along the inner surface of the bowl part;
It is characterized by having at least.
If it is the washing | cleaning method of the toilet apparatus which passed through such a process, in any position with respect to the whole inner surface of a bowl part, it can irradiate with an ultraviolet-ray from the substantially comparable distance, and a bowl part is safe and reliable. The inner surface can be cleaned.

In addition, the method for cleaning the toilet device of the present invention includes:
Before the step of bringing the ultraviolet light source close to the inner surface of the bowl part,
An OH radical source aqueous solution consisting of a nonionic substance that decomposes by ultraviolet irradiation in the presence of water in the presence of water through an OH radical source aqueous solution supply means or an aqueous solution in which ions are dissolved, Supplying and adhering to,
It is characterized by having.

  If there is a step of supplying and attaching such an aqueous solution of OH radical source to the inner surface of the bowl part, excrement is caused by the original cleaning function of the flush toilet device, that is, water flow such as so-called rim water discharge and jet water discharge And stubborn organic dirt that cannot be cleaned only by the function of washing and flowing sewage into a sewage or septic tank, or darkening due to growth of mold, etc., can be surely washed away from the inner surface of the bowl.

According to the toilet device and the cleaning method of the toilet device of the present invention, UV rays are reliably applied to the inner surface of the bowl portion while preventing a decrease in the UV intensity due to diffusion accompanying an increase in the distance from the ultraviolet light source to the inner surface of the bowl portion. Irradiation is possible, and a high cleaning effect can be obtained.
As a result, in a toilet apparatus in which the inner surface of the bowl portion is configured with a photocatalyst as described in Patent Document 1, for example, the decomposition action, hydrophilic action and antibacterial action by the photocatalyst can be obtained more reliably.

  Moreover, in the toilet apparatus which sterilizes by irradiation of ultraviolet rays as described in Patent Literature 2 or Patent Literature 3, sterilization of the inner surface of the bowl portion by ultraviolet rays can be performed more effectively and reliably.

  Furthermore, even when an ultraviolet light source such as a light emitting diode (LED) having a narrow irradiation range and a small output is used, such an effect can be reliably obtained. In the toilet apparatus of the present invention, since the ultraviolet light source can be moved through the guide rail, even the small ultraviolet light source that irradiates only a part can irradiate the entire inner surface of the bowl portion by moving the ultraviolet light source. Therefore, the toilet device can be made compact.

  In addition, when the UV light source is not used, storing the UV light source in the back of the toilet lid or the storage part provided on the toilet device body not only makes the entire toilet device compact, but also impairs the design (aesthetics). Furthermore, it is possible to prevent the ultraviolet light source from becoming dirty.

  Further, by using the moving means, the distance between the inner surface of the bowl portion and the ultraviolet light source can be made as short as possible to irradiate ultraviolet rays. Thereby, it becomes possible to irradiate the inner surface of the bowl part while maintaining the output intensity without diffusing ultraviolet rays, and a high cleaning effect can be obtained.

Further, according to the toilet apparatus of the present invention, the photocatalyst is obtained by performing a combination of spraying of the aqueous solution of the OH radical source on the inner surface of the bowl portion and ultraviolet (UV) irradiation on the inner surface of the bowl portion. Even if the action is not utilized, organic dirt such as dirt and mold attached to the bowl portion of the toilet bowl can be decomposed and removed by the strong oxidizing power of OH radicals.
At this time, the toilet device is always kept clean by automatically washing the combination of the OH radical source aqueous solution and ultraviolet (UV) irradiation when the toilet device is not used (for example, when the toilet lid is closed). It can be kept in a state, and the labor of cleaning the toilet can be greatly reduced.

  In addition, by irradiating with ultraviolet rays having a wavelength suitable for cleaning and sterilization and other ultraviolet rays having different wavelengths (so-called sterilization lines (ultraviolet rays having a wavelength of about 260 nm)), A sterilizing effect by a mechanism of damaging DNA different from the sterilizing mechanism using OH radicals can be obtained, and the preventive effect of infectious diseases via the toilet device can be further enhanced.

FIG. 1 is a schematic view of a toilet apparatus according to an embodiment of the present invention. FIG. 2 is a schematic view for explaining an embodiment of the moving means in the toilet apparatus of the present invention. FIG. 3 is a schematic view for explaining another embodiment of the moving means in the toilet apparatus of the present invention. FIG. 4 is a schematic view of an ultraviolet light source with a spray nozzle in the toilet apparatus of the present invention. FIG. 5 is a schematic view for explaining another embodiment of the ultraviolet light source in the toilet apparatus of the present invention. FIG. 6 is a schematic view of a toilet apparatus provided with the ultraviolet light source shown in FIG. FIG. 7 is a schematic view of a toilet apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
The present invention relates to a toilet device and a method for cleaning the toilet device performed using the toilet device.
As shown in FIG. 1, a toilet device 100B according to an embodiment of the present invention includes a toilet device main body 10, a toilet 30 attached to the toilet device main body 10 and having a bowl portion 20, and an inner surface of the bowl portion 20. And the toilet lid 40 that can be opened and closed with respect to the toilet 30.
Such a toilet apparatus 100B has moving means 80 that moves the ultraviolet light source 60 along the inner surface of the bowl portion 20 while moving the ultraviolet light source 60 closer to or away from the inner surface of the bowl portion 20. ing.

  As described above, the toilet device 100B of the present invention has the same basic structure and mechanism as a conventional general flush toilet device (for example, the toilet device disclosed in Patent Document 1), and further described above. This is a particularly characteristic configuration in that the moving means 80 is provided. Hereinafter, the toilet device 100B according to the present invention will be described focusing on differences from the conventional toilet device.

  First, as the ultraviolet light source 60 in the toilet apparatus 100B of the present invention, an ultraviolet (UV) lamp (hereinafter also referred to as a UV lamp) such as a mercury lamp or an excimer lamp, an ultraviolet light emitting diode (hereinafter also referred to as a UV-LED), or the like is used. can do.

Among these ultraviolet light sources 60, it is preferable to use a UV-LED for reasons such as miniaturization, power saving, long life, no use of mercury, and instant lighting / extinguishing.
In the case of using the UV-LED, a plurality of UV-LEDs 71 and 71 ′ are used and the substrates 72 and 72 ′ have substantially rectangular ultraviolet emission surfaces 73 and 73 ′, respectively. The two housing units 74 and 74 ′ that accommodate 71 ′ may be a light emitting diode module (hereinafter also referred to as an LED module) 70 that is connected by a connecting member 75 such as a hinge.

In this specification, the LED module 70 includes a mechanical or electrical control circuit or a part thereof, and a plurality of optically configured elements that can be handled as one unit, or an assembly thereof. That means.
If comprised in this way, when the moving means 80 is used, the toilet apparatus 100B can be made more compact, and it is preferable.

In the case of using a UV lamp, the UV lamp discharge tube itself may be used to emit light radially, or may be housed in a lamp house in combination with a reflector, etc. The ultraviolet light may be emitted from the ultraviolet light emission part of the lamp house by controlling.
Here, ultraviolet rays mean light having a wavelength of 400 nm or less, and from the viewpoint of photocatalytic activation, it is preferable to use ultraviolet rays having a wavelength of 200 nm or more and 390 nm or less.
On the other hand, from the viewpoint of ultraviolet sterilization, it is preferable to use ultraviolet rays having a wavelength of 250 nm to 300 nm.

  Therefore, in order to obtain the above-described photocatalytic activation effect and ultraviolet sterilization effect at the same time, a UV-LED that emits ultraviolet light having a peak wavelength in a wavelength region of 250 nm to 300 nm and a peak wavelength in a wavelength region of 300 nm to 400 nm. It is preferable to use together with UV-LED which emits the ultraviolet-ray which has.

  Such an LED module 70 can be irradiated with high-intensity ultraviolet rays, and the directivity angle (half-value angle) from the ultraviolet emission surfaces 73 and 73 ′ of the respective housing units 74 and 74 ′ is preferably 40 ° or less and 0 ° or more. More preferably, ultraviolet rays are emitted as a strip-shaped light flux of 30 ° or less and 0 ° or more.

  As described above, the toilet apparatus 100B according to the present invention includes the moving unit 80 for moving the ultraviolet light source 60 in order to make the apparatus compact and to further ensure the irradiation effect of the ultraviolet light.

  As the moving means 80, the ultraviolet light source 60 is moved along the peripheral edge of the bowl portion 20 while maintaining the state in which the ultraviolet emission surfaces 73 and 73 ′ face the inner surface of the bowl portion 20. Although not particularly limited, for example, the arrangement shape may be configured to move via a guide rail having a circular shape, an elliptical shape, a spiral shape, a U shape, a U shape, or a rectangular shape. preferable.

In particular, when the guide rail is a circular shape or an elliptical shape having a circumferential ring shape, a higher cleaning effect can be obtained on the inner surface of the bowl portion 20 by rotating the ultraviolet light source 60 once or a plurality of times.
Specifically, as shown in FIG. 2, the ultraviolet light source 60 is preferably configured to move through a guide rail 81 provided on the back surface 41 of the toilet lid 40.

  Examples of the power and trajectory control system for moving the ultraviolet light source 60 and sliding on the guide rail 81 include an electric motor, an electric actuator combining a sprocket and a chain, and a hydraulic pressure or pneumatic cylinder using a hydraulic cylinder or a pneumatic cylinder. There are pneumatic actuators and the like, and there is no particular limitation.

Further, the moving means 80 moves the stool to the ultraviolet light source 60 held at the “non-use holding position” provided on the back surface of the toilet lid 40 when the toilet lid 40 that can be opened and closed with respect to the toilet 30 is open. When the lid 40 is closed,
(1) a first movement in which the ultraviolet light source 60 moves so as to face the inner surface of the bowl portion 20 at a predetermined position;
(2) From the position where the ultraviolet light source 60 is moved by the first movement, while maintaining the state where the ultraviolet light source 60 is opposed to the inner surface of the bowl part 20, the ultraviolet light is emitted along the peripheral edge of the bowl part 20. A second movement of moving the light source 60 and returning it back to the position moved by the first movement;
(3) a third movement for returning the ultraviolet light source 60 from the position returned by the second movement to the “non-use holding position” on the back surface of the toilet lid 40;
Are preferably performed in this order.

  At this time, the position where the ultraviolet light source 60 is arranged by the first movement (hereinafter also referred to as “standby position”) is such that the ultraviolet light source 60 faces the inner surface of the bowl portion 20 at an arbitrary predetermined position. Position.

For example, when the ultraviolet light source 60 has ultraviolet light emitting surfaces 73 and 73 ′ that are flat or gently curved like the inner surface of the bowl portion 20, the ultraviolet light source 60 (ultraviolet light emitting surfaces 73 and 73 ′) and the bowl portion are used. When the distance to the inner surface of 20 is within a range of 0.5 to 5.0 cm, preferably within a range of 1.0 to 3.0 cm, an ultraviolet light source 60 (ultraviolet emitting surface) is formed with respect to the inner surface of the bowl portion 20. 73, 73 ′) are positions facing each other so as to be parallel or substantially parallel.
In the second movement, the distance between the ultraviolet light source 60 (ultraviolet emission surfaces 73 and 73 ′) and the inner surface of the bowl portion 20 facing the ultraviolet light source 60 is always within a range of 0.5 to 15.0 cm, preferably It is preferable to be within a range of 0.5 to 10.0 cm, and most preferably within a range of 0.5 to 5.0 cm.

In the toilet apparatus 100B shown in FIG. 1 and FIG. 2, the inner surface of the bowl portion 20 is made of an aqueous solution in which nonionic substances or ions that are decomposed by ultraviolet irradiation in the presence of water to generate OH radicals are dissolved. An OH radical source aqueous solution supply means 50 for supplying and attaching an OH radical source aqueous solution is provided. In addition, the code | symbol 51 in a figure is a spray nozzle.
Further, in FIG. 1, the OH radical source aqueous solution supply means 50 is provided in the toilet 30, but the “local cleaning nozzle” of the so-called warm water cleaning toilet seat that is widely used in the toilet apparatus body 10 and general toilet apparatuses. It may be attached to.

  It is preferable that the OH radical source aqueous solution is an aqueous solution substantially free of ozone. Here, “substantially free of ozone” in the OH radical source aqueous solution means that ozone is not actively added, and inevitable contamination as an impurity is allowed. The lower the concentration of these components inevitably mixed as impurities, the better, but usually it is 1 ppm or less, preferably 0.1 ppm or less, most preferably 0.01 ppm or less on a mass basis.

  In addition, “nonionic substances or ions that decompose by ultraviolet irradiation in the presence of water to generate OH radicals” are non-ionic substances or ions other than ozone and known for such functions. Can be used without any particular limitation. Here, the “nonionic substance that generates OH radicals” means all substances that generate OH radicals that do not become ions that generate OH radicals when the substance is dissolved in water.

  Examples of these nonionic substances or ions include nitrate ions, nitrite ions, urethane compounds, cellulose derivatives, and hydrogen peroxide. Among these, from the viewpoint of easy handling and OH radical generation efficiency, it is preferably at least one selected from nitrate ion, nitrite ion and hydrogen peroxide, and is it nitrate ion and / or nitrite ion? Most preferred is hydrogen peroxide.

The higher the concentration of nonionic substances or ions in the aqueous OH radical source solution, the easier it is to generate OH radicals. However, if the concentration is too high, the OH radicals that are generated at different angles react and disappear, which is not efficient and the solute precipitates. The problem of doing will also occur.
For these reasons, the concentration of these nonionic substances or ions in the aqueous OH radical source solution is preferably 0.01 mM to 10 M, particularly preferably 0.05 mM to 5 M, and 0.1 mM to 1 M. Most preferably. Here, M represents (mol / liter).

In order to make ions that decompose by irradiation with ultraviolet light in the presence of water to generate OH radicals exist in the aqueous solution, the acid or salt of these ions may be dissolved in water.
Nitric acid and nitrates such as sodium nitrate, potassium nitrate, calcium nitrate, and lithium nitrate can be suitably used as the substance that dissolves to give nitrate ions, and nitrous acid and nitrous acid as substances that dissolve to give nitrite ions. Nitrite such as sodium nitrate and potassium nitrite can be preferably used.

It is known that nitrate ions undergo a reaction that directly generates OH radicals when irradiated with ultraviolet rays having a wavelength of 240 nm or less (Bull. Korean Chem. Soc. 2011, Vol. 32, No. 8, 3039-3044, and Techneau, D2.4.1.1, 1-27).
It is also known that once reduced to nitrite ions, OH radicals are generated, and the reduction reaction at that time is promoted by the coexistence of ethylenediaminetetraacetic acid (EDTA), glycine, glycolic acid, and the like. (Journal of Japan Society on Water Environment Vol.30, No.11, pp661-664, (2007)).
It is likely that both reactions occur when UV light is actually irradiated.

  On the other hand, nitrite ions have absorption at 300 to 400 nm, and in terms of binding energy, it is more advantageous to generate OH radicals from nitrite ions than to directly generate OH radicals from nitrate ions, and the energy is higher. It is considered that the quantum efficiency of the photoreaction is further increased by irradiating with ultraviolet rays (of a short wavelength).

  Therefore, when nitrate ions are used, substances such as ethylenediaminetetraacetic acid (EDTA), glycine, and glycolic acid are used in an amount of about 0.1 to 1.2 times the amount of nitrate ions (molar or gram ions) ( Moles or gram molecules).

Hydrogen peroxide absorbs a wavelength of 290 nm or less and generates OH radicals. When hydrogen peroxide and a salt of an inorganic acid such as a water-soluble organic substance or carbonate coexist, it is known that the apparent lifetime of the OH radical generated by the chain reaction is prolonged.
Therefore, when the cleaning liquid contains hydrogen peroxide, it may further contain 1 to 100 ppm by mass of a water-soluble organic substance and / or carbonate composed of a lower (C1-5) alcohol such as isopropanol. preferable.

  The longevity of OH radicals due to chain reactions when water-soluble organic substances are added can be expected even when nitrate ions and / or nitrite ions are used. Therefore, nitrate ions and / or nitrite ions are used. It is preferable to contain 1 to 100 ppm by mass of a water-soluble organic substance composed of a lower (C1 to C5) alcohol such as isopropanol.

  Such an OH radical source aqueous solution gives a nonionic substance that decomposes by irradiation with ultraviolet rays in the presence of water to generate OH radicals or an ion that decomposes by irradiation with ultraviolet rays in the presence of water to generate OH radicals. It can be prepared by dissolving a substance in a predetermined amount of water.

  At this time, a stock solution having a high concentration may be prepared and diluted with water as appropriate. Moreover, these OH radical source aqueous solution and stock solution can also distribute | circulate themselves as goods. In that case, it is preferable to seal in an ultraviolet shielding container and store in a cool and dark place. The form of the container is not particularly limited, and a bottle or a pouch can be employed.

The toilet apparatus 100B of the present invention preferably has a tank (not shown) for storing the above aqueous solution of OH radical source. It is more preferable to supply the stock solution and water to this tank to prepare and store an OH radical source aqueous solution.
Furthermore, when the water level in the tank is detected and the water level drops to a predetermined value, the stock solution and water are automatically replenished so that the amount of the OH radical source aqueous solution does not fall below the predetermined amount. Is preferred.

The OH radical source aqueous solution supply means 50 usually has a pump, piping, and a spray nozzle 51. The OH radical source aqueous solution stored in the tank is pumped by the pump to the inner surface of the bowl portion 20 from the spray nozzle 51. Supply.
The OH radical source aqueous solution supply means 50 is not particularly limited as long as it has a function of supplying and attaching the OH radical source aqueous solution to the inner surface of the bowl portion 20. For example, the same as the spray means disclosed in Patent Document 1 The following means can be applied.

When supplying and attaching the OH radical source aqueous solution to the inner surface of the bowl portion 20, the inner surface of the bowl portion 20 is subjected to a hydrophilization treatment so that the OH radical source aqueous solution easily spreads on the inner surface of the bowl portion 20. It is preferable to keep it.
In order to impart hydrophilicity to the inner surface of the bowl 20, for example, hydrophilicity as described in Patent Document 4 (Japanese Patent Laid-Open No. 2006-20461) or Patent Document 5 (Japanese Patent Laid-Open No. 2006-20462). It is only necessary to apply a crystallization process method.

  That is, the following 1. Or 2. The hydrophilic treatment method may be applied.

1. A surface layer containing an inorganic compound that is a surface layer of the bowl portion 20 is treated with a silane coupling agent containing a radical reactive functional group, and the surface layer bonded to the silane coupling agent is used.
(A) “having a radical reactive functional group and an alkali metal salt of a sulfonic acid group, a hydrophilic compound other than the end of the molecular chain and no branched chain, a radical polymerization initiator, and polarity Hydrophilic treatment coating composition containing a compatibilizer "or
(B) “containing a radical-reactive functional group and a sulfonic acid group, a compound not containing a hydrophilic part other than the molecular chain end and a branched chain, a radical polymerization initiator, and a compatibilizer having polarity. Hydrophilic treatment paint composition "
A hydrophilization treatment method of applying and reacting.

2. A surface layer containing an inorganic compound that is a surface layer of the bowl portion 20 is treated with a silane coupling agent containing at least one reactive functional group selected from an isocyanate group, an epoxy group, an amino group, and a mercapto group, On the surface layer combined with the coupling agent,
(c) “containing at least one selected from an amino group, a hydroxyl group, and a mercapto group, a functional group that reacts with the reactive functional group of the silane coupling agent, and an alkali metal salt of a sulfonic acid or a sulfonic acid group. , A hydrophilic treatment coating composition containing a hydrophilic compound that does not contain a hydrophilic part other than the end of the molecular chain, and a compatibilizer having polarity "or
(D) “At least one selected from an amino group, a hydroxyl group, and a mercapto group, which contains a functional group that reacts with a reactive functional group of the silane coupling agent and a sulfonic acid group, in addition to the end of the molecular chain Hydrophilic treatment paint composition containing a hydrophilic compound not containing a hydrophilic part and a polar compatibilizer "
A hydrophilization treatment method of applying and reacting.

  Since the inner surface of the bowl part 20 made hydrophilic by such a hydrophilic treatment method can always keep the inner surface of the bowl part 20 in a hydrophilic state irrespective of the presence or absence of ultraviolet irradiation, Even if the OH radical source aqueous solution is supplied at such timing, the OH radical source aqueous solution can be wet spread on the inner surface of the bowl portion 20.

  Further, it is not necessary to supply and adhere the OH radical source aqueous solution over the entire inner surface of the bowl portion 20 at a time. It only needs to be supplied and adhered.

In this way, the generation efficiency (quantum efficiency) of OH radicals is increased by irradiating the inner surface of the bowl portion 20 to which the OH radical source aqueous solution is supplied and attached with ultraviolet rays having a short wavelength of 400 nm or less. Can do.
(See https://dspace.wul.waseda.ac.jp/dspace/handle/2065/5349, Sota Nakagawa “Degradation process of trace organic substances in wastewater by accelerated oxidation method” p10, Table 1.5)

In addition, if ultraviolet rays having a wavelength of less than 200 nm are not used, it is unlikely to be absorbed by a substance such as oxygen in the atmosphere and cause a decrease in strength. The inner surface of the bowl portion 20 can be irradiated.
Furthermore, when ultraviolet rays including ultraviolet rays having a wavelength of less than 200 nm are emitted using a mercury lamp or an excimer lamp, harmful ozone may be generated, but if ultraviolet rays having a wavelength of less than 200 nm are not used, Generation of harmful ozone can be prevented.

On the other hand, in the toilet apparatus body 10 of the toilet apparatus 100B, as in the conventional toilet apparatus as disclosed in Patent Document 1, various types of sensors such as a control unit, a seating sensor, and a detection sensor that detects the open / closed state of the toilet lid 40 are provided. It has a sensor and an opening / closing drive device (not shown) for the toilet lid 40, and the opening / closing drive device for the toilet lid 40, the ultraviolet light source 60, and the OH radical source aqueous solution supply means 50 are controlled via the controller. .
In the conventional toilet apparatus as disclosed in Patent Document 1, the spraying of functional water or sterilizing water is performed while the toilet lid is closed, during irradiation with ultraviolet light, or after irradiation with ultraviolet light is completed. It is controlled to be performed within a predetermined time.

However, in the toilet apparatus 100B of the present invention, it is necessary to control so that the ultraviolet irradiation is performed in a state where the aqueous solution of the OH radical source is supplied and attached to the inner surface of the bowl portion 20. At this time, it is preferable to control the irradiation of ultraviolet rays so that the toilet lid 40 is closed for safety.
The supply of the OH radical source aqueous solution to the inner surface of the bowl portion 20 is also preferably performed with the toilet lid 40 closed, but this may be performed with the toilet lid 40 open. .

  The toilet 30, the bowl part 20 and the toilet lid 40 of the toilet apparatus 100B of the present invention are the same as the conventional toilet apparatus as disclosed in Patent Document 1, but the inner surface of the bowl part 20 is disclosed in Patent Document It is not necessary to be formed of a photocatalyst as disclosed in No. 1. Instead, it is preferable that the inner surface of the bowl portion 20 is subjected to a hydrophilic treatment so as to have hydrophilicity.

In the toilet apparatus 100 </ b> B, the LED module 70 is normally held at the “non-use holding position” on the back surface of the toilet lid 40. In addition, when the storage part is provided in the back surface of the toilet lid 40, the inside of this storage part becomes a "non-use holding position".
Then, the toilet lid 40 is closed, and the OH radical source aqueous solution supply means 50 supplies the OH radical source aqueous solution to the inner surface of the bowl portion 20 and adheres it.
That is, an OH radical source aqueous solution composed of a nonionic substance that decomposes by ultraviolet irradiation in the presence of water in the presence of water through the OH radical source aqueous solution supply means 50 or an aqueous solution in which ions are dissolved is added to the bowl portion 20. The process of supplying and attaching to the inner surface of this is performed.

Thereafter, as a first movement by the moving means 80, the ultraviolet light source 60 (UV-LED 71, 71 ′) held at the “non-use holding position” is used. It arrange | positions so that it may oppose the inner surface of the defined position.
That is, a step of bringing the ultraviolet light source 60 closer to the inner surface of the bowl portion 20 through the moving means 80 is performed.

Thereafter, the ultraviolet light source 60 (UV-LEDs 71, 71 ′) is turned on to start irradiation with ultraviolet rays. When irradiating with ultraviolet rays, the LED module 70 moves the ultraviolet light source 60 from the position (standby position) where the ultraviolet light source 60 is arranged by the first movement as the second movement by the moving means 80. While maintaining a state of being opposed to the inner surface of the portion 20, it is made to circulate one or more times along the peripheral edge of the bowl portion 20 via the guide rail 81 while being circularly moved. Is returned.
That is, the process of irradiating the inner surface of the bowl part 20 with the ultraviolet light source 60 moved close to the inner surface of the bowl part 20 along the inner surface of the bowl part 20 is performed.
Thereafter, the ultraviolet light source 60 is returned from the “standby position” to the “non-use holding position” by the moving unit 80 again as a third movement.

The movement of the ultraviolet light source 60 (LED module 70) by the moving means 80 will be described in detail with reference to FIG.
The ultraviolet light source 60 (LED module 70) shown in FIG. 2 shows a state in the middle of the first movement (<1> in the figure) or the third movement (<3> in the figure). In the figure, <2> represents the second movement.

In the first movement, the ultraviolet light source 60 (LED module 70) rotates around the connecting portion with the circular guide rail 81 from the “non-use holding position” so that the back surface 41 of the toilet lid 40 rotates. The ultraviolet light emission surfaces 73 and 73 ′ of the ultraviolet light source 60 (LED module 70) face the inner surface at a predetermined position of the bowl portion 20 and are inclined to the inner surface 21 of the bowl portion 20. It moves to a “standby position” that is a position along the line.
At this time, the housing unit 74 ′ of the ultraviolet light source 60 (LED module 70) is rotated in the closing direction with the connecting member 75 as the rotation axis, and finally the “<” shape as shown in FIG. Become.

Then, in the second movement, the ultraviolet light source 60 (LED module 70) makes one or more rounds along the peripheral edge of the bowl portion 20 via the circular guide rail 81 while maintaining this state. Returning to the “standby position”, the irradiation of ultraviolet rays is stopped.
Thereafter, in the third movement, the reverse of the first movement is followed to return to the “non-use holding position” again.

At this time, supply and adhesion of the OH radical source aqueous solution to the inner surface of the bowl portion 20, specifically, spraying of the OH radical source aqueous solution from the spray nozzle 51 of the OH radical source aqueous solution supply means 50 is performed by the toilet lid 40. In the closed state, it is performed before the first movement is started.
In addition, the LED module 70 is not configured to be driven from a straight state to a “<” shape, as described above, in which the housing unit 74 and the housing unit 74 ′ are connected by the connecting member 75. Alternatively, a configuration including only the housing unit 74 may be used.
What is necessary is just to determine suitably according to the shape and size of the bowl part 20 about how to comprise.

Next, the toilet device 100C shown in FIG. 3 will be described.
The toilet device 100C shown in FIG. 3 has an elliptical guide rail 81a similar to the shape of the opening of the bowl 20 instead of the circular guide rail 81 in the toilet device 100B shown in FIGS. Used.

  Further, the ultraviolet light source 60 (LED module 70a) having the housing units 74a and 74a ′ that are slightly longer than the housing units 74 and 74 ′ of the ultraviolet light source 60 (LED module 70) in the toilet apparatus 100B shown in FIGS. ) Is used. In the figure, reference numeral 21 'denotes an inclination of the front part (left side in FIG. 3) on the inner surface of the bowl part 20, and reference numeral 75a denotes a connecting member.

Further, in the second movement, the distance between the inner surface of the bowl portion 20 and the ultraviolet light emission surface of the ultraviolet light source 60 (LED module 70a) is kept as constant as possible.
Others are similar to the toilet apparatus 100B shown in FIGS. 1 and 2, and the spraying of the OH radical source aqueous solution is performed in the same manner from the spray nozzle 51 of the OH radical source aqueous solution supply means 50.

After spraying from the spray nozzle 51 of the OH radical source aqueous solution supply means 50, supply and adhesion of the OH radical source aqueous solution to the inner surface of the bowl portion 20 is performed, and the moving means 80 operates. Make the first move.
At this time, in the “standby position” 90 of the LED module 70a shown in FIG. 3, the housing unit 74a ′ does not face the inner surface of the bowl part 20, but faces the water surface of the water stored in the bowl part 20. It is like that.

In the subsequent second movement, the LED module 70a moves from the “standby position” 90 to the “position when rotated 180 °” 91 (which is a position opposite to the standby position 90). The angle between the rear surface 41 and the housing unit 74a is gradually narrowed, and the angle formed between the housing unit 74a and the housing unit 74a ′ is gradually increased so as not to exceed 180 °.
Further, when proceeding from “position 91 at the time of 180 ° rotation” to “standby position 90”, conversely, while gradually increasing the angle formed between the back surface 41 of the toilet lid 40 and the housing unit 74a, the housing unit 74a. And the housing unit 74a ′ move while gradually narrowing the angle.
By moving in this way, the distance between the inner surface of the bowl portion 20 and the ultraviolet light emitting surface of the ultraviolet light source 60 (LED module 70a) can be kept as constant as possible in the second movement.

Therefore, the diffusion of light due to the increased distance between the inner surface of the bowl portion 20 and the ultraviolet light emitting surface of the ultraviolet light source 60 (LED module 70a) is prevented, and the inner surface of the bowl portion 20 is exposed to ultraviolet rays without reducing the ultraviolet intensity. Can be irradiated.
At this time, the ultraviolet rays are also irradiated toward the water surface of the water stored in the water storage part of the bowl part 20.
The inner surface of the bowl portion 20 in the vicinity of the water surface is also the most easily contaminated portion, and the cleaning effect and the antifouling effect of the toilet device 100C can be further enhanced by reliably irradiating such portions with ultraviolet rays. it can.

In the toilet apparatus 100B shown in FIGS. 1 and 2 and the toilet apparatus 100C shown in FIG. 3, the OH radical source aqueous solution is sprayed from the spray nozzle 51 of the OH radical source aqueous solution supply means 50 at a time in the bowl 20. It is supplied and adhered over the entire inner surface.
However, you may make it scan the sprayed OH radical source aqueous solution using the ultraviolet light source 60 (LED module 70b) as shown in FIG.

The ultraviolet light source 60 (LED module 70b) shown in FIG. 4 has substantially rectangular ultraviolet light emission surfaces 73b and 73b ′, and two housing units 74b that house a plurality of UV-LEDs 71b and 71b ′, respectively. , 74b ′ have a structure connected by a connecting member 75b.
The spray nozzles 51b and 51b 'are arranged next to the ultraviolet light exit surfaces 73b and 73b' on the front side in the traveling direction in the second movement. That is, the ultraviolet light source 60 (LED module 70a) and the OH radical source aqueous solution supply means 50 are integrated.
It is of course possible to spray functional water such as hypochlorous acid water as disclosed in Patent Document 1 from the spray nozzles 51b and 51b ′ instead of the OH radical source aqueous solution.

  By using such an ultraviolet light source 60 (LED module 70b), for example, an aqueous solution of an OH radical source is sprayed immediately before the irradiation of ultraviolet rays, or an OH radical source is firstly applied to almost the entire inner surface of the bowl portion 20. The aqueous solution can be supplied and adhered, and then, the entire inner surface of the bowl portion 20 can be irradiated with ultraviolet rays again.

  FIG. 4 shows an example in which the spray nozzles 51b and 51b ′ are integrated with the ultraviolet light source 60 (LED module 70b). However, the spray nozzles 51b and 51b are arranged on a rod-shaped base, and the moving means 80 applies ultraviolet light. The same movement as the light source 60 (LED module 70b) can also be performed.

In the toilet apparatus of the present invention, the rod-shaped light source module 200 shown in FIG. 5 can be used as the ultraviolet light source 60 in addition to the LED modules 70, 70 a and 70 b shown in FIGS.
The rod-shaped light source module 200 shown in FIG. 5 has a structure basically similar to that disclosed in Patent Document 6 (Japanese Patent No. 5591305), and collects ultraviolet rays emitted from a large number of UV-LEDs. Thus, high-intensity ultraviolet rays can be emitted as band-like parallel light.

Such a rod-shaped light source module 200 includes:
“An output side housing 211 having an output side reflection mirror made of an ellipse reflection mirror and a condensing side reflection mirror made of an oblong reflection mirror having the same shape as the output side reflection mirror inside, A main body 210 having a condensing side housing 212 provided with an opening for ultraviolet light emission in the vicinity of the focal axis of the elliptical reflecting mirror constituting the mirror;
A plurality of ultraviolet light emitting elements (not shown) are arranged on the side surface of the cylindrical substrate 221 so that the optical axis of each ultraviolet light emitting element passes through the central axis of the cylindrical substrate 221, and the ultraviolet rays are centered on this. A rod-shaped light source 220 that is emitted radially with respect to an axis;
A collimating optical system 230 disposed in the ultraviolet light emitting opening,
The rod-shaped light source 220 is
Arranged on the focal axis 213 of the exit side reflection mirror, the exit side housing 211 and the condensing side housing 212 have the condensing axis 214 of the exit side reflection mirror coincident with the focal axis 215 of the condensing side reflection mirror. The converging optical system converts the condensed ultraviolet light into a substantially parallel light beam and emits it.

Furthermore, the rod-shaped light source 220 is
“On the side surface of the cylindrical substrate 221, a plurality of ultraviolet light emitting elements (not shown) are arranged so that the optical axis of each ultraviolet light emitting element passes through the central axis of the cylindrical substrate 221, and the ultraviolet light is centered. An ultraviolet light emitting element arrangement base configured to be emitted radially with respect to an axis;
A cover 222 formed of a UV transmissive material,
Cover 222 is
The ultraviolet light emitting element arrangement base is covered and the inert gas or dry air is sealed inside, and the ultraviolet light emission element arrangement base is hermetically mounted, and the cooling medium flow path is provided inside the cylindrical base body 221. 223 is formed and the cooling medium 224 is circulated through the cooling medium flow path 223.

FIG. 6 shows a schematic diagram of a toilet apparatus 100D using the rod-shaped light source module 200 shown in FIG. 5 as an ultraviolet light source 60. [I] in FIG. -B represents a view of arrow.
The toilet apparatus 100D shown in FIG. 6 has a storage portion 42 for storing the rod-shaped light source module 200 on the back surface 41 of the toilet lid 40.

  The inside of the storage portion 42 is a “non-use holding position”, and the rod-shaped light source module 200 is stored in the storage portion 42 when the toilet lid 40 is open. In order to make the toilet device 100D compact and make the convex part height of the back surface 41 of the toilet lid 40 as low as possible so as not to impair the aesthetic appearance, the rod-shaped light source module 200 includes a collimating optical system 230 serving as an ultraviolet emission surface. Is stored inside the storage portion 42 so as to face sideways (perpendicular to the back surface 41 of the toilet lid 40).

  Then, in the first movement by the moving means 80, the rod-shaped light source module 200 moves away from the back surface 41 of the toilet lid 40 so as to rotate around the connecting portion with the guide rail 81b as the center of rotation. Move to “Position”. At the same time, the collimating optical system 230 is rotated by 90 ° with the arm 82 as the rotation center so as to face the inner surface of the bowl portion 20.

Then, in the second movement, the rod-shaped light source module 200 is guided from the “standby position” to the elliptical guide rail 81 b, and returns to the standby position after one or more rounds along the periphery of the bowl portion 20.
Thereafter, in the third movement, the reverse of the first movement is followed to return to the “non-use holding position”.

  The toilet devices 100B, 100C, and 100D of the present invention have been described above with reference to the drawings. However, the toilet device of the present invention is not limited to these.

  For example, instead of the OH radical source aqueous solution, functional water as described in Patent Document 1 may be sprayed, or these may not be sprayed at all, and only ultraviolet irradiation may be performed.

  Further, the arrangement shape of the guide rail is not limited to the circular shape or the elliptical shape as described above, and may be a spiral shape, a U shape, a U shape, a rectangular shape, or the like. In the case of a U-shape or U-shape that is not an annular ring, after moving from the “standby position” to the end on one side, it returns to the “standby position” again, and this time on the other side. After moving to the end, it may be finally returned to the “standby position”. Further, the movement of moving the ultraviolet light source 60 up and down in the direction of the direction of the inner surface of the bowl portion 20 may be combined and moved so as to draw a spiral trajectory.

  Further, as the ultraviolet light source 60, a UV-LED and a light guide plate serving as an ultraviolet emitting part are optically connected using an optical fiber or the like, and the UV-LED is installed in the toilet apparatus body 10 ( (Not shown) or in a place away from the bowl part 20 such as the back surface 41 of the toilet lid 40, and only the ultraviolet light emitting part may be moved by the moving means 80.

Further, in the toilet apparatus 100B, 100C, 100D of the present invention, the guide rail 81 is provided on the back surface of the toilet lid 40, but this is not particularly limited, and for example, the toilet apparatus 100E shown in FIG. As described above, the guide rail 81 c may be provided on the back surface of the rim 22 of the bowl portion 20. In FIG. 7, for convenience of explanation, the toilet lid 40 is removed.
Thus, the toilet device of the present invention and the toilet device cleaning method performed using the toilet device can be variously modified without departing from the object of the present invention.

DESCRIPTION OF SYMBOLS 10 Toilet apparatus main body 20 Bowl part 21,21 'Inclination 22 Rim 30 Toilet 40 Toilet lid 41 Back surface 42 Storage part 50 OH radical source aqueous solution supply means 51, 51b, 51b' Spray nozzle 60 Ultraviolet light source 70, 70a, 70b Light emitting diode module (LED module)
71, 71 ′, 71b, 71b ′ Ultraviolet light emitting diode (UV-LED)
72, 72 'Substrates 73, 73', 73b, 73b 'Ultraviolet light exit surfaces 74, 74', 74a, 74a ', 74b, 74b' Housing units 75, 75a, 75b Connecting member 80 Moving means 81, 81a, 81b, 81c Guide rail 82 Arm 90 Standby position 91 Positions 100B, 100C, 100D, and 100E at the time of 180 ° rotation Toilet device 200 Bar-shaped light source module 210 Main body 211 Outgoing side housing 212 Condensing side housing 213 Focal axis 214 of outgoing side reflection mirror Outgoing side reflection Condensing axis 215 of the mirror Focusing axis 220 of the reflecting mirror on the condensing side Bar-shaped light source 221 Base 222 Cover 223 Cooling medium flow path 224 Cooling medium 230 Collimating optical system

That is, the toilet device of the present invention is
Toilet device body,
A toilet attached to the toilet device body and having a bowl portion;
An ultraviolet light source for irradiating the inner surface of the bowl part with ultraviolet light ;
And at least with the toilet device,
The toilet device is
The bowl portion facing the ultraviolet light source and the ultraviolet light source after making the ultraviolet light source approach or separate from the inner surface of the bowl portion and making the ultraviolet light source approach the inner surface of the bowl portion And a moving means for moving the ultraviolet light source along the inner surface of the bowl portion so as to keep the distance between the inner surface and the inner surface as constant as possible .
If such a moving means is provided, it is possible to prevent a decrease in the UV intensity due to diffusion accompanying an increase in the distance between the UV light source and the inner surface of the bowl part, and to ensure that the inner surface of the bowl part is prevented. The entire surface can be irradiated with ultraviolet rays, and a high cleaning effect can be obtained.

The toilet device of the present invention is
The ultraviolet light source irradiates the inner surface of the bowl part with ultraviolet light including ultraviolet light having a wavelength of 260 nm.
The toilet device of the present invention is
The moving means is
It is configured to move the ultraviolet light source via a guide rail ,
The guide rail is provided on a back surface of a toilet lid provided to be openable and closable with respect to the toilet .
If the ultraviolet light source can be moved through the guide rail in this way, it is possible to reliably irradiate the entire inner surface of the bowl portion with ultraviolet light.

Further, if the guide rail is provided on the back surface of the toilet lid, the ultraviolet light source and the moving means can be configured separately from the bowl portion, and the maintainability is good.

The toilet device of the present invention is
The moving means is
It is configured to move the ultraviolet light source via a guide rail,
The guide rail is provided on the back surface of the rim of the bowl portion.
Thus, if it is provided on the back surface of the rim of the bowl portion, for example, when it is necessary to replace the warm water flush toilet seat, the toilet lid can be replaced.
Furthermore, since the back surface of the rim of the bowl portion is usually difficult to visually recognize, the appearance of the toilet device is not impaired and a beautiful appearance can be maintained.

In addition, the method for cleaning the toilet device of the present invention includes:
A toilet device main body, a toilet bowl attached to the toilet device main body, having a bowl portion, an ultraviolet light source for irradiating ultraviolet light to the inner surface of the bowl portion, and the ultraviolet light source approaching or approaching the inner surface of the bowl portion And a moving means for moving the ultraviolet light source along the inner surface of the bowl part, and at least a cleaning method for a toilet apparatus,
The step of bringing the ultraviolet light source closer to the inner surface of the bowl part via the moving means;
The approached ultraviolet light source is kept along the inner surface of the bowl part so as to keep the distance between the ultraviolet light source and the inner surface of the bowl part facing the ultraviolet light source as constant as possible. Irradiating the inner surface of the bowl part with ultraviolet rays while moving;
It is characterized by having at least.
If it is the washing | cleaning method of the toilet apparatus which passed through such a process, in any position with respect to the whole inner surface of a bowl part, it can irradiate with an ultraviolet-ray from the substantially comparable distance, and a bowl part is safe and reliable. The inner surface can be cleaned.

Hydrogen peroxide absorbs a wavelength of 290 nm or less and generates OH radicals. When hydrogen peroxide and a salt of an inorganic acid such as a water-soluble organic substance or carbonate coexist, it is known that the apparent lifetime of the OH radical generated by the chain reaction is prolonged.
Therefore, when the cleaning liquid contains hydrogen peroxide, further Isopuropa Roh Lumpur such as lower (1-5 carbon atoms) to a water-soluble organic and / or carbonates consisting alcohol include 1 to 100 ppm by weight Is preferred.

Claims (11)

Toilet device body,
A toilet attached to the toilet device body and having a bowl portion;
An ultraviolet light source for irradiating the inner surface of the bowl part with ultraviolet light;
A toilet device having at least
The toilet device is
A toilet apparatus characterized by having moving means for moving the ultraviolet light source along the inner surface of the bowl portion while moving the ultraviolet light source toward or away from the inner surface of the bowl portion. The moving means is
The toilet device according to claim 1, wherein the ultraviolet light source is moved through a guide rail.   The toilet apparatus according to claim 2, wherein the guide rail is provided on a back surface of a toilet lid provided to be openable and closable with respect to the toilet.   The toilet device according to claim 3, wherein the ultraviolet light source is configured to be stored in a storage unit provided on a back surface of the toilet lid. Comprising a detection sensor for detecting the open / closed state of the toilet lid;
The toilet device according to claim 3 or 4, wherein the ultraviolet light source and the moving means are activated when the toilet lid is in a closed state.   The toilet device according to claim 2, wherein the guide rail is provided on a back surface of the rim of the bowl portion.   The toilet apparatus according to claim 6, wherein the ultraviolet light source is configured to be stored in a storage unit provided in the toilet apparatus main body.   The arrangement shape of the guide rail is any one of a circular shape, an elliptical shape, a spiral shape, a U shape, a U shape, and a rectangular shape. Toilet equipment. When the ultraviolet light source is brought close to the inner surface of the bowl part through the moving means,
The distance between the inner surface of the bowl part and the ultraviolet light source is in the range of 0.5 to 15.0 cm, The toilet device according to any one of claims 1 to 8. The ultraviolet light source is
The toilet device according to any one of claims 1 to 9, which is a light emitting diode module having a substantially rectangular ultraviolet light emitting surface and having a plurality of ultraviolet light emitting diodes. A toilet device main body, a toilet bowl attached to the toilet device main body, having a bowl portion, an ultraviolet light source for irradiating ultraviolet light to the inner surface of the bowl portion, and the ultraviolet light source approaching or approaching the inner surface of the bowl portion And a moving means for moving the ultraviolet light source along the inner surface of the bowl part, and at least a cleaning method for a toilet apparatus,
The step of bringing the ultraviolet light source closer to the inner surface of the bowl part via the moving means;
Irradiating the inner surface of the bowl part with ultraviolet light while moving the approached ultraviolet light source along the inner surface of the bowl part;
A method for cleaning a toilet device, comprising:

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