JP7432402B2 - toilet equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to toilet devices.

BACKGROUND ART Conventionally, a technique has been proposed in which a chemical solution or the like is discharged into a toilet bowl of a toilet device to sterilize or sterilize bacteria (see, for example, Patent Document 1 described below).

Japanese Patent Application Publication No. 2018-100491

Patent Document 1 discloses a technique in which a chemical solution such as ozonated water is generated and sprayed onto the inner wall surface of a bowl of a toilet device after a predetermined period of time has elapsed. However, generating ozonated water requires devices such as electrodes, and since ozonated water is an unstable substance, it is necessary to spray ozonated water frequently. In addition to the above, the method of spraying a chemical solution onto the inner wall surface of the bowl did not have a sufficient effect of suppressing the growth of fungi such as mold in the water storage area of the toilet bowl.

The present disclosure has been made in view of the above, and an object of the present disclosure is to provide a toilet device that can preferably suppress the growth of fungi such as mold in the toilet bowl.

The present disclosure includes a toilet bowl, and a cleaning device capable of supplying cleaning water and a disinfectant containing an essential oil component into the toilet bowl, and the cleaning device supplies the disinfectant into the toilet bowl. The present invention relates to a toilet device having a disinfectant discharge section that discharges disinfectant.

FIG. 1 is a plan view of a toilet device according to a first embodiment of the present disclosure. FIG. 2 is a longitudinal cross-sectional view of the toilet device according to the embodiment as viewed in the direction of arrow AA in FIG. 1. FIG. FIG. 2 is a longitudinal cross-sectional view of the toilet device of the third embodiment as viewed in the direction of arrow AA in FIG. 1; FIG. 1 is a schematic diagram of a foam generating device according to a first embodiment of the present disclosure. FIG. 3 is a schematic diagram of a foam generating device according to a second embodiment of the present disclosure. This is a photo showing a mold resistance test conducted using a conventional toilet device. This is a photograph showing an anti-mold test conducted using the toilet device of this embodiment.

[First embodiment]
The toilet device 1 according to this embodiment includes a toilet main body 2, a cleaning device 3, and a control section 5, as shown in FIGS. 1 and 2.

The toilet main body 2 includes a toilet bowl 6 for receiving waste, a drain trap 7 provided in the toilet drainage channel 13, and a toilet seat (not shown) and a toilet lid (not shown) that open and close with respect to the toilet bowl 6. . The toilet bowl drainage path 13 is composed of an upward flow path 13A and a downward flow path 13B, and connects the bottom of the toilet bowl 6 and the drain socket 14. The drain socket 14 is connected to a drain pipe (not shown). The toilet seat and the toilet lid may be provided with a toilet seat opening/closing sensor and a toilet lid opening/closing sensor that detect the respective opening/closing states.

A first discharge pipe 81 and a second discharge pipe 82 are arranged above the toilet bowl 6. The first discharge pipe 81 and the second discharge pipe 82 are connected to the water supply device 16 that supplies cleaning water, and discharge the cleaning water. A rim flow channel 91 and a discharge port 92 are formed in the upper part of the inner wall surface of the toilet bowl 6, and the flush water discharged from the first discharge pipe 81 swirls inside the toilet bowl 6 along the rim flow channel 91. It is discharged in such a way. The flushing water discharged from the second discharge pipe 82 merges with the flushing water discharged from the first rim flow channel 91 through the discharge port 92 and is discharged into the toilet bowl 6 . In addition to the above, the second discharge pipe 82 is connected, for example, to the ejector 15 described later. Bubbles generated by the ejector 15 are discharged from the second discharge pipe 82 . Furthermore, the second discharge pipe 82 serving as a disinfectant discharge section supplies a disinfectant containing an essential oil component (hereinafter sometimes simply referred to as "disinfectant"), which will be described later, into the toilet bowl 6 separately from the wash water. Exhale. Washing water collects at the bottom of the toilet bowl 6, forming a water collecting surface WL1.

In addition to the above, the toilet device 1 includes a remote controller (not shown) as an operation section for causing a control section 5 to be described later to execute various controls. The remote controller is attached, for example, to the wall of the toilet room where the toilet device 1 is installed. The remote controller has, for example, a cleaning switch for cleaning the toilet bowl and a human body private parts cleaning switch for cleaning the private parts of the human body.

The cleaning device 3 is a device that can supply cleaning water and disinfectant into the toilet bowl 6. In this embodiment, the cleaning device 3 is a device that can supply cleaning water, cleaning liquid, and disinfectant into the toilet bowl 6. In this specification, "cleaning water" refers to water such as tap water taken from a water supply system, for example. Similarly, the term "cleaning liquid" refers to components used to clean the toilet bowl 6, such as detergents such as surfactants and ionized water produced by electrolyzing water. As shown in FIG. 4, the cleaning device 3 includes a water supply device 16, an ejector 15 as a foam generator, a cleaning liquid supply device 18, and a second discharge pipe 82 as a disinfectant discharge section.

The cleaning device 3 operates under the control of a control unit 5, which will be described later, and can supply cleaning water, cleaning liquid, and disinfectant into the toilet bowl 6. It is preferable that the disinfectant supplied into the toilet bowl 6 by the cleaning device 3 be mixed with a cleaning liquid in advance, supplied to a cleaning liquid tank 23 to be described later, and then supplied into the toilet bowl 6. Alternatively, the cleaning liquid and the disinfectant may be separately supplied to the cleaning liquid tank 23, and the cleaning liquid and the disinfectant may be mixed within the cleaning liquid tank 23. Alternatively, the cleaning liquid and the disinfectant may be mixed in an ejector 15 as a foam generating device, which will be described later. Alternatively, a disinfectant may be mixed into the cleaning liquid within the path through which the cleaning liquid flows. Alternatively, the cleaning liquid and the disinfectant may be separately supplied into the toilet bowl 6. With any of the above-described configurations of the cleaning device 3, the cleaning liquid and the disinfectant are mixed in the water in the toilet bowl 6.

The water supply device 16 takes in wash water from a water supply pipe (not shown) connected to the water supply, and supplies the wash water into the toilet bowl 6 using a pump device (not shown). The water supply device 16 is configured to supply water to the first discharge pipe 81 by, for example, operating a cleaning switch (not shown) on a remote controller by a user of the toilet device 1 (hereinafter sometimes simply referred to as a "user"). Washing water is supplied to the toilet bowl 6 via the second discharge pipe 82. The water supply device 16 can also supply cleaning water to the ejector 15, as shown in FIG.

An ejector 15 as a bubble generator is provided in the flow path 19. The flow path 19 is a flow path through which air, cleaning water, and cleaning liquid flow. The flow path 19 includes an upstream pipe 21 , a downstream pipe 22 , an air supply path 20 , and an on-off valve 17 in addition to the ejector 15 . The upstream pipe 21 is provided upstream of the ejector 15, and the downstream pipe 22 is provided downstream of the ejector 15. The cleaning liquid containing bubbles generated by the ejector 15 is supplied to the second discharge pipe 82 through the downstream pipe 22.

The ejector 15 mixes the cleaning water supplied from the water supply device 16 with the cleaning fluid and sterilizer supplied from the cleaning fluid supply device 18 and the air supplied from the air supply path 20, thereby producing a cleaning solution containing air bubbles. generate. The ejector 15 includes, in order from the upstream side, a reduced diameter part 15a, a small diameter part 15b, and an enlarged diameter part 15c. The reduced diameter portion 15a has a tapered shape whose diameter gradually decreases from the upstream side to the downstream side. An air supply path 20 is connected to the reduced diameter portion 15a. The small diameter portion 15b has a smaller diameter than the upstream reduced diameter portion 15a and the downstream enlarged diameter portion 15c. A cleaning liquid supply path 26 in the cleaning liquid supply device 18 is connected to the small diameter portion 15b. The enlarged diameter portion 15c has a tapered shape whose diameter gradually increases from the upstream side to the downstream side.

The cleaning liquid supply device 18 supplies cleaning liquid and disinfectant to the ejector 15. The cleaning liquid supply device 18 includes a cleaning liquid tank 23, a cleaning liquid pump 24, and cleaning liquid supply paths 25 and 26. In this embodiment, a disinfectant is mixed with the cleaning liquid and stored in the cleaning liquid tank 23. More preferably, the cleaning liquid tank 23 stores a cleaning liquid mixed with a disinfectant in advance. The cleaning liquid tank 23 is connected to a cleaning liquid pump 24 via a cleaning liquid supply path 25. The cleaning liquid pump 24 is connected to the ejector 15 via a cleaning liquid supply path 26. The cleaning liquid pump 24 pumps the cleaning liquid and disinfectant to the ejector 15 via the cleaning liquid supply path 26 .

The air supply path 20 supplies air to the ejector 15. When cleaning water is supplied to the ejector 15 while the on-off valve 17 is open, the air in the air supply path 20 becomes a negative pressure inside the ejector 15 and is drawn into the ejector 15. The on-off valve 17 is provided in the middle of the air supply path 20 and opens and closes the air supply path 20. The on-off valve 17 is connected to the control section 5.

With the above configuration of the cleaning device 3, a cleaning liquid containing air bubbles and a sterilizing agent is generated in the ejector 15. The cleaning liquid containing the air bubbles and the disinfectant is discharged into the toilet bowl 6 through the downstream pipe 22 from a second discharge pipe 82 serving as a disinfectant discharge section. In this embodiment, the cleaning device 3 supplies a cleaning liquid containing the above-mentioned bubbles and a sterilizing agent in addition to the cleaning water. The second discharge pipe 82 discharges the cleaning liquid containing the bubbles and the disinfectant directly to the water surface WL in the toilet bowl 6. In this specification, "directly" means discharging a disinfectant or the like onto the water surface WL without rotating inside the toilet bowl 6. As a result of the above, air bubbles and disinfectant remain on the water surface WL in the toilet bowl 6. The cleaning liquid containing bubbles and the disinfectant may be discharged by operating a remote controller as an operating section. Alternatively, it may be discharged under control by the control unit 5 described below.

The control unit 5 controls the discharge of cleaning water, cleaning liquid, and disinfectant by the cleaning device 3. The control unit 5 controls the on-off valve 17 and the amount of cleaning liquid and disinfectant supplied by the cleaning liquid supply device 18 . It is preferable that the control unit 5 controls the cleaning device 3 so that the cleaning liquid containing air bubbles and a disinfectant is discharged into the toilet bowl 6 at a predetermined time during the night. In addition to the above, the control unit 5 controls the cleaning device 3 so that cleaning liquid containing air bubbles and a disinfectant is discharged into the toilet bowl 6 after a predetermined period of time has passed after the user uses the toilet device 1. is preferred. As a result of the above, it becomes possible to retain the disinfectant in the water stored in the toilet bowl 6 for a long time, and a preferable sterilizing effect of the toilet bowl 6 can be obtained.

The control unit 5 controls the cleaning device 3 so that the cleaning liquid containing air bubbles and a disinfectant is discharged into the toilet bowl 6 after a predetermined period of time has elapsed after determining that the toilet device 1 has been used. As shown in FIG. 2, the control section 5 is connected to a human sensor 4 as a human body detection section. The human sensor 4 is a sensor that detects a human body, and is, for example, an infrared sensor. When a user enters the toilet room where the toilet device 1 is installed, the human sensor 4 detects the human body of the user and sends a signal to the control unit 5. The control unit 5 may include a timer device (not shown).

The control unit 5 determines whether the toilet device 1 has been used by the method described below. The control unit 5 detects, for example, that the signal from the human sensor 4 is no longer received, that the signal acquired from the toilet lid open/close sensor has been switched from an open toilet lid detection signal to a closed toilet lid detection signal, and that the toilet bowl is cleaned. It is determined that the toilet device 1 has been used by at least one of the following: the flushing switch is pressed to flush the toilet bowl. After the above judgment is made, the control unit 5 measures the elapsed time using the timer device. After the above judgment is made, the control unit 5 controls the cleaning device 3 so that the cleaning liquid containing bubbles and a disinfectant is discharged into the toilet bowl 6 after a predetermined period of time has elapsed.

The control unit 5 can obtain the time using the timer device. According to the above, the control unit 5 controls the cleaning device 3 so that the cleaning liquid containing air bubbles and a disinfectant is discharged into the toilet bowl 6 at a predetermined time during the night when the user uses the toilet device 1 less frequently. Can be controlled. Thereby, it becomes possible to retain the disinfectant in the water in the toilet bowl 6 for a long time, and a preferable disinfecting effect can be obtained.

The control unit 5 can control the cleaning device 3 so that cleaning liquid containing air bubbles and a disinfectant is discharged into the toilet bowl 6 in response to a user's operation on a remote controller, which is an operation unit. The control unit 5 is configured to discharge a cleaning liquid containing bubbles and a disinfectant into the toilet bowl 6 after a predetermined period of time has elapsed after the user presses a cleaning switch (not shown) on a remote controller, for example. The cleaning device 3 can be controlled.

The control unit 5 can determine that the toilet device 1 is in the state where the man is about to urinate. The control unit 5 can determine that the man is about to urinate, for example, when the signal acquired from the toilet seat opening/closing sensor of the toilet device 1 switches from a closed toilet seat detection signal to an open toilet seat detection signal. When the control unit 5 determines that the man is about to urinate, the control unit 5 performs control to discharge a cleaning liquid containing air bubbles and a disinfectant to prevent splashing into the toilet bowl 6. In addition to the above, when the control unit 5 determines that the toilet device 1 has been used, it performs control to discharge flush water into the toilet bowl 6. When the above two controls are performed, air bubbles and disinfectant do not remain in the toilet bowl 6 after the toilet device 1 is used. The above two controls are preferably performed during the day. The above control makes it possible to reduce the amount of disinfectant and cleaning fluid consumed during the day when the toilet device 1 is frequently used.

(Bactericide containing essential oil components)
The disinfectant stored in the cleaning liquid tank 23 contains an essential oil component. By including the essential oil component in the disinfectant, a preferable sterilizing effect can be obtained, and the growth of fungi such as mold in the toilet bowl 6 can be suppressed. In addition to the above, since the essential oil component has aromatic properties, added values such as deodorizing effect and relaxing effect can be imparted to the toilet device 1.

In this specification, the essential oil component includes at least one of a natural essential oil component obtained by pressing, distilling, or extracting a plant, and an artificially synthesized synthetic essential oil component. The essential oil component preferably contains a terpene compound. Examples of the terpene compounds include monoterpene alcohols, monoterpene aldehydes, monoterpene ketones, monoterpene esters, monoterpene hydrocarbons, sesquiterpene alcohols, diterpene alcohols, and the like.

Examples of monoterpene alcohols include geraniol, linalool, ethyllinalool, citronellol, terpineol, and eugenol. Examples of monoterpene aldehydes include citral, citronellal, perilaldehyde, and the like. Examples of monoterpene ketones include menthone, carvone, pulegone, camphor, damascone, and nerol. Examples of monoterpene esters include geranyl acetate and citronellyl acetate. Examples of monoterpene hydrocarbons include limonene and the like. Examples of the sesquiterpene alcohol include farnesol, nerolidol, bisabolol, and the like. Examples of diterpene alcohols include phytol, isophytol, and the like.

The terpene compound preferably includes citral. Citral includes geranial, which is a trans form, and neral, which is a cis form. In the disinfectant, citral is preferably contained in an amount of 50% by weight or more, more preferably 70% by weight or more.

Natural essential oil components are not particularly limited, and include, for example, lemongrass essential oil, lavender essential oil, peppermint essential oil, jasmine essential oil, neroli essential oil, bergamot essential oil, orange essential oil, geranium essential oil, petitgrain essential oil, lemon essential oil, citronella essential oil, cinnamon essential oil, Eucalyptus essential oil, lemon eucalyptus essential oil, thyme essential oil, rose otto essential oil, rosemary essential oil, tea tree essential oil, arvensis mint essential oil, wintergreen essential oil, carrot seed essential oil, clove leaf essential oil, palmarosa essential oil, fennel sweet essential oil, May Chan essential oil, eucalyptus Examples include bloom essential oil and frankincense essential oil. Among them, at least one natural essential oil component selected from the group consisting of lemongrass essential oil, rose otto essential oil, neroli essential oil, lavender essential oil, peppermint essential oil, tea tree essential oil, thyme essential oil, carrot seed essential oil, clove leaf essential oil, and Mei Chan essential oil. is preferably included, and more preferably at least one selected from the group consisting of lemongrass essential oil, rose otto essential oil, neroli essential oil, tea tree essential oil, and mei chan essential oil is included. In particular, it is preferable that lemongrass essential oil is included. Natural essential oil components such as lemongrass essential oil may be used in combination with synthetic essential oil components.

The mechanism by which the terpene compounds contained in essential oil components produce the bactericidal effect is presumed to be, for example, as follows. Terpene compounds are adsorbed to ergosterol, which constitutes the cell membranes of bacteria such as molds, and disrupt the phospholipid membranes of the cells. It is thought that this kills the cells of bacteria such as mold and provides a bactericidal effect.

[Second embodiment]
In the following description, descriptions of configurations common to the first embodiment may be omitted. As shown in FIG. 5, the toilet device 1a according to the second embodiment includes a cleaning device 3a and a control section 5a. The cleaning device 3a includes an ejector 15, a cleaning liquid supply device 18, and a disinfectant supply device 27.

The disinfectant supply device 27 supplies a disinfectant to the ejector 15. The disinfectant supply device 27 includes a disinfectant tank 28, a disinfectant pump 29, and disinfectant supply channels 30 and 31. The disinfectant tank 28 stores a disinfectant containing essential oil components. Disinfectant tank 28 is connected to disinfectant pump 29 via disinfectant supply path 30 . The disinfectant pump 29 is connected to the ejector 15 via a disinfectant supply path 31. For example, the sterilizer supply path 31 is connected to the small diameter portion 15b of the ejector 15. The disinfectant pump 29 pumps the disinfectant to the ejector 15 via the disinfectant supply path 31 . In the ejector 15, the cleaning liquid and the disinfectant are mixed, and the cleaning liquid containing the bubbles and the disinfectant is discharged into the toilet bowl 6.

The control unit 5a is connected to the disinfectant pump 29. The control unit 5a controls the amount of cleaning liquid and disinfectant discharged into the toilet bowl 6. The control unit 5a can control the cleaning device 3a so that the cleaning liquid and the disinfectant are discharged into the toilet bowl 6 only at the timing when the disinfecting effect is high. For example, as in the first embodiment, the control unit 5a includes a built-in timer device (not shown), and cleans so that only the cleaning liquid containing air bubbles is discharged during the day when the toilet device 1 is frequently used by the user. The device 3a can be controlled. The control unit 5a can control the cleaning device 3a so that cleaning liquid containing air bubbles and a disinfectant is discharged into the toilet bowl 6 during the night when the user uses the toilet device 1 less frequently.

The control unit 5a can control the cleaning device 3a so that only cleaning water is discharged into the toilet bowl 6, for example, when a cleaning switch (not shown) is pressed by the user. The control unit 5a can control the cleaning device 3a so that the disinfectant is discharged into the toilet bowl 6 together with the cleaning liquid after a predetermined period of time has elapsed since the user pressed the cleaning switch.

The toilet device 1a according to the second embodiment does not store the disinfectant in the cleaning liquid tank 23, but can store it only in the disinfectant tank 28. With the above configuration, the cleaning device 3a can discharge the disinfectant together with the cleaning liquid into the toilet bowl 6 only at the timing when the disinfection effect is high. Therefore, the disinfectant can be retained in the water in the toilet bowl 6 for a long time, and a sufficient sterilizing effect on the toilet bowl 6 can be obtained. In addition to the above, since the amount of disinfectant used can be reduced, running costs can be reduced.

[Third embodiment]
As shown in FIG. 3, the cleaning device 3b in the toilet device 1b of the third embodiment includes a spray device 31 as a disinfectant discharge section that directly sprays a disinfectant toward the water surface WL1 in the toilet bowl 6. The spray device 31 includes a disinfectant tank, a disinfectant pump (not shown), and a spray nozzle (not shown). The spray nozzle sprays the disinfectant supplied from the disinfectant tank into the toilet bowl 6, for example, in the form of a mist.

The control unit 5b is connected to the spray device 31 and can control the amount of disinfectant sprayed into the toilet bowl 6 by the spray device 31. The control unit 5b has a timer device as in the first embodiment, and can control the spray device 31 so that the disinfectant is discharged into the toilet bowl 6 after the user uses the toilet device 1. preferable.

Similar to the second embodiment, the toilet device 1b according to the third embodiment controls the cleaning device 3b so that the cleaning liquid and disinfectant are discharged into the toilet bowl 6 only at the timing when the sterilization effect is high by the control unit 5b. Can be controlled. Thereby, the same effect as the toilet device 1a of the second embodiment can be obtained. In addition to the above, the toilet device 1b according to the third embodiment includes a spray device 31 that directly sprays the disinfectant toward the water reservoir surface WL in the toilet bowl 6, so that the disinfectant is uniformly discharged over the entire reservoir water surface WL1. can. In addition to the above, the disinfectant can be dispensed after the bubble-laden cleaning liquid is dispensed. Thereby, the disinfectant can be uniformly discharged above the bubbles stored on the water surface WL. Therefore, it becomes easier to keep the disinfectant near the surface of the reservoir water surface WL. Therefore, a favorable sterilizing effect can be obtained.

Although preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments. In the second and third embodiments described above, the controllers 5a and 5b are described as controlling the cleaning device 3 so that the disinfectant is discharged into the toilet bowl 6 together with the cleaning liquid containing air bubbles. Not limited. The controllers 5a and 5b may control the cleaning device so that only the disinfectant is discharged into the toilet bowl 6.

[Bactericidal (anti-fungal) evaluation]
Using the bactericide containing the essential oil component according to the above embodiment, bactericidal properties (antifungal properties) were evaluated by the following method.

(Paper disc method)
Antifungal properties were evaluated using the paper disc method. Cladosporium sphaerospermum (NBRC6348) was used as the bacterial species used. Cladosporium adjusted to a spore concentration of 10 ⁴ cells/mL was smeared onto a PDA medium, and a paper disk was placed thereon for testing. A foaming agent (surfactant) as a cleaning liquid and a sample containing 4% by weight of lemongrass essential oil as a disinfectant were dropped onto the paper disk in predetermined amounts (10 μL, 20 μL, 30 μL), respectively, as a cleaning liquid, and Culture was performed at 28°C for 7 days. Regarding the size of the inhibition zone after culture, the following criteria were set and antifungal properties were evaluated. The results are shown in Table 1.
3: The size of the inhibition zone is larger than the diameter of the paper disk 2: The size of the inhibition zone is similar to the diameter of the paper disk 1: The size of the inhibition zone is smaller than the diameter of the paper disk, or the inhibition zone is smaller than the diameter of the paper disk not formed

As shown in Table 1, an inhibition zone with a larger diameter is formed around the paper disk on which the sample containing lemongrass essential oil in addition to the foaming agent is dropped compared to the area around the paper disk on which only the foaming agent is dropped. It was done. This confirmed that the presence of a sterilizing agent containing an essential oil component together with a foaming agent provides a favorable sterilizing effect.

(Rapid test using test piece)
Using a test piece of sanitary ware used for the toilet bowl body 2 including the toilet bowl 6, a rapid test was conducted to generate mold and other bacteria against artificially created limescale using the following method, and the anti-fungal properties were evaluated. . The reason why water scale is created artificially is that the mechanism by which bacteria such as mold grow in the toilet bowl 6, etc. is that dirt is deposited on the water scale that has occurred on the toilet bowl 6, etc., and bacteria such as mold grows on the dirt. This is because they are thought to breed.

First, a test piece was placed against a plastic cup, water was poured so that part of the test piece was submerged, and water was left at a temperature of 45° C. for 7 days to form limescale on the test piece. Water was replenished once a day. Next, the test piece with the water scale created above was placed in a sterile cup and stood upright, and a culture solution mixed with Cladosporium adjusted to a spore concentration of 10 ⁴ /mL and a prescribed sample solution were poured into the sterile cup and tested. Part of the piece was submerged in the liquid. The sterilized cup was cultured for 4 days at a temperature of 28°C. In Table 2 below, sample solution A consists of only a culture solution, sample solution B is a mixture of culture solution and foaming agent (surfactant), and sample solution C is a mixture of culture solution and foaming agent (surfactant). surfactant) and 4% by weight of lemongrass essential oil. Regarding the appearance of the test piece after culturing, antifungal properties were evaluated using the following criteria. The results are shown in Table 2.
3: The propagation of mold and other bacteria is hardly visually confirmed. 2: The propagation of mold and other bacteria is intermittently confirmed visually. 1: The propagation of mold and other bacteria is continuously confirmed visually.

As shown in Table 2, sample solution C in which a foaming agent and lemongrass essential oil were mixed together with culture solution was compared with sample solution A in which only culture solution was mixed, and sample solution B in which only foaming agent was mixed together with culture solution. The results showed that the growth of bacteria on the test piece surface was suppressed. This confirmed that the presence of a disinfectant containing an essential oil component together with a foaming agent can suppress the growth of bacteria such as mold on sanitary ware.

(Practical test using toilet device)
A field test was conducted in a general household using the toilet device. First, mold was allowed to grow inside the toilet bowl of the toilet device without cleaning or sterilizing the toilet device. Next, the generated mold was cleaned using a melamine sponge. A field test was conducted on the toilet devices after the mold was cleaned under the following conditions.

FIG. 6 shows an example of a practical test in which the toilet device after mold cleaning was cleaned with only water after use. FIG. 6 is a photograph of the toilet device taken after three weeks had elapsed with the above-mentioned flushing with only water and no cleaning of the toilet device. FIG. 7 shows a practical test example in which air bubbles and a disinfectant were discharged into the toilet bowl in the toilet device according to the present embodiment after the mold was cleaned. FIG. 7 is a photograph taken of the toilet device after three weeks had elapsed after a cleaning liquid containing bubbles and a disinfectant containing essential oil components were discharged into the toilet bowl once every night at night, but no cleaning was performed. As shown in FIG. 7, in the toilet device according to the present embodiment that discharges the cleaning liquid and disinfectant containing air bubbles into the toilet bowl, no growth of bacteria such as mold was visually confirmed, and only the water shown in FIG. The results showed that the growth of mold and other bacteria in the toilet bowl was suppressed compared to toilet devices that flush with water.

1, 1a, 1b Toilet device, 3, 3a, 3b Cleaning device, 31 Spray device (disinfectant discharge section), 4 Human sensor (human body detection section), 5, 5a, 5b Control section, 6 Toilet bowl, 10 Jet Discharge port (foam generator), 15 Ejector, 18 Cleaning liquid supply device, 82 Second discharge pipe (disinfectant discharge section), WL Reservoir surface

Claims (10)

A toilet bowl and
a cleaning device capable of supplying cleaning water and a disinfectant containing an essential oil component into the toilet bowl;
a control unit that controls the cleaning device ;
The cleaning device has a disinfectant discharge part that discharges the disinfectant into the toilet bowl,
In the toilet device, the control unit discharges the disinfectant into the toilet bowl after a predetermined period of time has elapsed after determining that the toilet device has been used, and causes the disinfectant to remain therein . The toilet device according to claim 1, wherein the disinfectant discharge unit discharges the disinfectant directly toward a water surface in the toilet bowl. The cleaning device is capable of supplying cleaning liquid into the toilet bowl,
The toilet device according to claim 1 or 2, wherein the cleaning liquid and the disinfectant are mixed in the water in the toilet bowl. The toilet device according to claim 1 or 2, wherein the cleaning device discharges a cleaning liquid containing the disinfectant into the toilet bowl. The toilet device according to any one of claims 1 to 3, wherein the cleaning device has a tank that stores the disinfectant and the cleaning liquid. The cleaning device has a foam generating device,
6. The toilet device according to any one of claims 1, 2, 4, and 5, wherein the foam generator internally mixes the wash water, the disinfectant, the wash liquid, and air. The toilet device according to any one of claims 1 to 6, wherein the cleaning device is capable of supplying a cleaning liquid containing bubbles into the toilet bowl. The toilet device according to any one of claims 1 to 7, wherein the control unit discharges the disinfectant into the toilet bowl at a predetermined time during the night. The cleaning device is capable of supplying a cleaning liquid containing bubbles into the toilet bowl separately from the cleaning water,
When the control unit determines that the toilet device is before the man urinates, the control unit discharges the cleaning liquid containing air bubbles into the toilet bowl, and when it determines that the toilet device is after use, it discharges the cleaning liquid containing the bubbles into the toilet bowl. The toilet device according to any one of claims 1 to 8 , wherein water is discharged into the toilet bowl. further comprising an operation unit for operating the cleaning device,
The toilet device according to any one of claims 1 to 9 , wherein the control unit discharges the disinfectant into the toilet bowl in response to an operation on the operation unit by a user.

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