JP2018047059A - Washing equipment for bathroom wash place floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide washing equipment for a bathroom wash place floor capable of suppressing mold growth on a bathroom wash place floor.SOLUTION: Washing equipment for a bathroom wash place floor includes washing means for spraying washing water on a wash place floor and a control part for controlling the washing means. The control part carries out a black mold suppression process for spraying the washing water so that keratin which is a cause of black mold growth remaining on a wash place floor is discharged from the wash place floor to an exhaust port by controlling the washing means, and a pink slime suppression process for spraying the washing water so that residual water containing Methylobacterium remaining on the wash place floor is substituted by the washing water from which Methylobacterium is removed.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a bathroom washing floor floor cleaning apparatus for cleaning a bathroom floor.

  Dirt on the bathroom wash floor includes debris such as soap and shampoo used to clean the human body, and dirt (protein, carbohydrate, oil, salt, etc.) generated from the human body.

  The present applicant has already developed a cleaning apparatus for removing such dirt and suppressing the occurrence of mold on the bathroom washing floor, and has obtained a patent (Patent Document 1).

  In the technique disclosed in Patent Document 1, sterilizing water having an antibacterial metal is sprinkled on the bathroom wash floor and the bathroom wash floor is sterilized (antibacterial process).

Japanese Patent No. 4035662

  The inventor of the present invention has been researching for many years on the technology that can suppress the occurrence of mold on the washing floor, which has the highest customer needs in the bathroom.

  Among the techniques disclosed in Patent Document 1, the technique of sterilizing the drain outlet of the bathroom with Ag was actually commercialized by the present applicant (trade name: slime washing). However, a high sterilizing effect can be expected for the drain outlet, but Ag sterilized water has the property of lagging the washing floor, so that it cannot exhibit a sufficient effect, and is a viewpoint of mold control for the washing floor. Was not enough. Specifically, since Ag sterilized water has a low immediate effect, there was a problem that it flowed from the washing floor to the drain before being attacked by fungi.

  If a large amount of Ag sterilized water is allowed to flow to the washing floor, an effect can be expected because it can be attacked against mold bacteria for a long time. In that case, however, there are still water saving issues.

  In order to increase the effect on molds in the washing floor where customer needs are high, the present inventors have repeatedly examined the application of technology using hypochlorous acid. Since the technique using hypochlorous acid can be expected to be effective immediately, it was expected to be effective in terms of attack against mold fungi. However, it was necessary to solve the following problems.

  First, since the bathroom has a certain size and the water discharge distance becomes long to some extent, the concentration of hypochlorous acid is “attenuated”. That is, in order to expect a sufficient attack effect against mold after sprinkling, it has been considered that it is necessary to use hypochlorous acid with a considerably high concentration in consideration of the attenuation.

  However, the chlorine component contained in tap water is limited, and it has not been easy to increase the concentration. Although methods such as adding chlorine were also considered, various troubles associated with the process of adding chlorine were generated, which was not practical.

  Furthermore, even if a high concentration can be realized, if water is sprinkled (water discharged) with the flow rate reduced, there may be a problem that countermeasures against corrosion of the equipment are required as the cleaning time becomes longer.

  This inventor is suitable for the bathroom washroom floor after many years of research, even when water containing hypochlorous acid is used for washing, and it is not necessary to adopt high concentration technology such as chlorine addition. In addition, we found a practically superior cleaning technique that can greatly reduce the occurrence of mold on the bathroom floor.

  In other words, the present inventor is not a bactericidal action of killing black mold and pink slime after having occurred conventionally, but a substance that causes their growth against black mold and pink slime that can occur in the bathroom. It has been found that it is effective to suppress or kill the plant. We have found a bathroom cleaning technique that is practically superior, not based on post-occurrence countermeasure techniques after generation, but on the countermeasure technique of removing the source.

  Specifically, black mold is removed from the floor by removing black mold from the floor, and the washing floor is washed and replaced with methylobacterium-less water that does not contain methylobacterium that causes pink slime. It has been found that it is effective to carry out pink slime suppression.

  FIG. 33 is a diagram showing an experimental result for explaining that the remaining keratin is a main factor in black mold generation. This is obtained by adding 2500 cfu / ml of mold spores (Cladosporium) to a mixture of 500 ppm of each soil component and culturing under an environment of 25 ° C. and 80% Rh for 7 days. As shown in FIG. 33, remarkable generation of black mold was confirmed in the culture results for the stratum corneum.

  The present invention has been made based on the above findings. An object of the present invention is to provide a bathroom washing floor cleaning apparatus that can suppress the occurrence of mold on the bathroom washing floor.

  The present invention is a bathroom washing place floor washing apparatus that constitutes a washing place in a bathroom and that washes a washing place floor having a drain, and includes a washing means for spraying washing water on the washing place floor, and a control for controlling the washing means. And the controller controls the cleaning means so that the keratin that causes black mold remaining on the washing floor is discharged from the washing floor to the drain. A pink mold that sprays the washing water so that the residual water containing methylobacterium remaining on the washing floor is replaced with washing water from which the methylobacterium has been removed. And a slime-suppressing step.

  According to the present invention, the black mold suppression step of removing the keratin that causes black mold remaining on the washing floor, and the pink slime suppression step of removing residual water containing methylobacterium remaining on the washing floor. By carrying out, stratum corneum and methylobacterium on the washing floor can be remarkably reduced, and as a result, generation of mold on the washing floor can be remarkably suppressed.

  In particular, in the pink slime suppression step, residual water containing methylobacterium remaining on the washing floor is replaced with washing water from which methylobacterium has been removed, so that high-concentration quick-acting sterilization can be achieved. Even without using water, methylobacterium on the washing floor can be significantly reduced. And, instead of sterilizing the fungus in the bathroom, it does not mean that all nutrients are killed or removed, it is only necessary to kill a small amount of methylobacterium, so the washing water sprayed in the pink slime control process Is not required to be a high-concentration sterilized water having a high concentration as previously considered, and the running cost can be kept low.

  It can be said that the present invention is not a reactive technique that sterilizes after generation of mold or pink slime, but a proactive technique that hits the source of the occurrence in advance. The types of mold generated in the bathroom are black mold and pink slime, and according to the present invention, 99% or more customer satisfaction can be achieved by suppressing these.

  The present inventor has identified a causative substance that causes black mold and pink slime in the bathroom (discovery). That is, the inventor of the present invention generates pink slime when black mold is caused by keratin, and pink slime is produced by a trace amount of methylobacterium in tap water, which grows on the washing floor. I found out. And the identification of these has made it possible to develop a technique that removes these causative substances before they occur, without killing mold or pink slime. And it came to establish this invention as a washing | cleaning technique which does not require high concentration of sterilization water and long-time sterilization.

  For example, in the black mold suppression step, first washing water is sprinkled to remove keratin from the washing floor, and in the pink slime inhibition step, second washing water is used to remove methylobacterium from the washing floor. It is preferable that the black mold suppression step and the pink slime suppression step are each performed in a mode separated from each other in time.

  In this case, watering of the 1st washing water in the black mold suppression process for washing so that exfoliation is exfoliated from the floor surface, and watering of the 2nd washing water replaced with the 1st washing water in the pink slime prevention process, It can be carried out independently. For example, the former water force and water amount are necessary to some extent, while the latter water force and water amount are not so necessary. However, the latter requires treatment using a filter or sterilizer that removes or kills methylobacterium. In other words, the conditions can be set independently when watering two wash waters having different requirements.

  Further, for example, the cleaning means is provided in a nozzle part for discharging the first cleaning water and the second cleaning water, and in a flow channel upstream from the nozzle part, so that methylobacterium can be extracted from the water. And a removing device for removing the first washing water, and the second washing water is obtained by removing methylobacterium before the water is sprayed on the washing floor. The water is preferably water in which bacteria are not present in the water.

  In other words, the present inventor has found that the keratin remaining on the washing floor can be removed with water. If it is water, the water force and the amount of water necessary for exfoliating the keratin can be easily secured. Thereby, exfoliation can be realized reliably and inexpensively. Furthermore, for the removal of methylobacterium, in order to surely remove the methylobacterium sprayed on the large floor surface, a large amount of the second washing water as the replacement water is required. This is because if removal failure occurs, it may cause pink slime. Therefore, a removal device is provided in the flow channel upstream of the nozzle part, and the removal device removes the methylobacterium before watering, so that the remaining water remaining on the washing floor floor is water free from methylobacterium. It succeeded in replacing with. This makes it possible to reliably remove methylobacterium, and to prevent the generation of pink slime in a small amount of water and in a short time. As described above, the present inventors have established a practically excellent bathroom cleaning technique capable of preventing the occurrence of black mold or pink slime on the bathroom washing ground floor at a low cost, reliably and in a short time.

  Preferably, the black mold suppression step is always performed first, and the pink slime suppression step is always performed later.

  For example, if cheap water is used as the first wash water in the black mold control process, water containing methylobacterium will be sprinkled, so if this is done in a later process, the cause of pink slime will be recreated. Become. Therefore, by performing the black mold suppressing step first and then spraying the second washing water, the generation of black mold and pink slime can be reliably suppressed.

  Moreover, it is preferable that the said control part implements the leaving process by which water sprinkling is prohibited after the said pink slime suppression process by controlling the said washing | cleaning means.

  In this case, since the wash water containing methylobacterium is not sprinkled by mistake, the growth of pink slime can be effectively suppressed.

  Further, the second washing water is water containing hypochlorous acid or water containing hypochlorous acid after the sterilization concentration is lowered, and the washing means generates hypochlorous acid. The removal device is provided in the hypochlorous acid production tank or between the hypochlorous acid production tank and the nozzle unit, and tap water is removed from the tank. By passing through the apparatus, methylobacterium is removed by the sterilizing action of hypochlorous acid produced by the hypochlorous acid production tank to become the second wash water, and the hypochlorous acid production tank is Hypochlorous acid is generated by electrolyzing tap water, and energization of the hypochlorous acid generation tank is always performed at least while the second washing water is discharged from the nozzle portion. It is preferable that it is continued.

  The use of water containing hypochlorous acid has been studied for the purpose of washing the bathroom. However, in the conventional technical common sense, the concentration of hypochlorous acid needs to be high in order to have a sufficient effect of disinfecting mold after watering. Specifically, the concentration at which hypochlorous acid is generated from chlorine in tap water has a low bactericidal action, and the bactericidal action (bactericidal power) is further attenuated by a decrease in the concentration of sprinkling water (water discharge). A special treatment for concentration was required and a long time was required for the sterilization treatment.

  However, the present inventors have found that the second cleaning water of the present invention can be used even with a low concentration of hypochlorous acid. Further, the second washing water only needs to remove methylobacterium, and may lose its bactericidal action after sprinkling and become simple water.

  Furthermore, since the removal device may be provided in the hypochlorous acid generation tank or between the hypochlorous acid generation tank and the nozzle part, the generation of the second wash water can be performed with a very simple configuration. Can be realized.

  Further, in this case, since energization of the hypochlorous acid generation tank is continued until water discharge from the nozzle portion of the second washing water is completed, it is possible to reliably prevent sprinkling of fresh water while being simple control. it can. Thereby, generation | occurrence | production of the pink slime by incorrect fresh water sprinkling can be prevented easily and reliably.

  The present invention also provides a washing floor that constitutes a bathroom washing area and has a drain, a bathroom washing floor cleaning device having any of the above characteristics, a counter installed on one side of the bathroom, and the bathroom. A bathroom wall provided at a peripheral edge of the bathroom, wherein the washing means is disposed on the counter side, and the washing means flows through the washing floor toward the drain outlet. In the bathroom, the first washing water and / or the second washing water is allowed to land on the bathroom wall upstream of the drain port.

  The part of the floor where stratum corneum and methylobacterium are most likely to remain is where the person has a counter to wash the body. When a cleaning device is arranged at this position and water from which methylobacterium has been removed using hypochlorous acid, for example, is adopted as the second cleaning water, the degree of concentration attenuation in the water discharge (watering) can be reduced. The concentration of hypochlorous acid may be even lower.

  Further, according to the present invention, a high water flow can be provided in the vicinity of the water discharge port by the water discharge flow flowing toward the water discharge port, and the water force can act to push the keratin or the like toward the water discharge port. . Generally, in the vicinity of the drainage port, it may be difficult to remove the keratin, for example, the keratin may be reattached due to a decrease in the water level due to the diffusion of water. In particular, the cleaning means lands the first cleaning water and / or the second cleaning water on the bathroom wall upstream of the drain outlet in the drain flow flowing through the washing floor toward the drain outlet. By being made to do, the keratin can be removed more reliably.

  Moreover, it is preferable that the surface of the washing floor is hydrophilic-coated. In this case, even if keratin and methylobacterium adhere to the washing floor, the high affinity between the washing floor and water works extremely effectively when removing the keratin and bacteria. That is, black mold suppression (removal of keratin) or pink slime suppression (replacement with water not containing methylobacterium) can be achieved quickly and sufficiently even with a small amount of washing water and a low washing water flow.

  Moreover, it is preferable that a groove extending in a direction that is not parallel to a direction in which the first washing water and / or the second washing water is landed is formed in the washing floor. In this case, when the sprinkled washing water collides with the washing ground floor or flows on the washing ground floor, the washing water collides with the groove to form a vertical wave (water pulsation). As the water flow is disturbed in this way, the keratin and methylobacterium are easily peeled off from the washing floor. In addition, when the washing water spreads and flows on the washing floor, the wave suppresses the reattachment of the keratin and methylobacterium to the floor. Thereby, even if the water flow and the amount of water to be sprinkled are small, the stratum corneum and methylobacterium can be reliably removed from the floor.

  In addition, the control unit controls the cleaning unit to perform a sprinkling standby step of waiting for the first cleaning water to be drained to the drain outlet after the black mold suppression step and before the pink slime suppression step. It is preferable to implement.

  In this case, the amount of the second washing water required for replacing the first washing water with the second washing water is small.

  When the bathroom floor is cleaned using the cleaning device of the present invention, it is more desirable to adopt regulations that are suited to the user's usage. Specifically, if water is sprayed from the cleaning device against the user's intention, the water spray collides with a person, and the impact of the stratum corneum removability and replaceability remains due to the collision. It is also important to prevent scattering outside the bathroom.

For example, it is preferable that the control unit prohibits the execution of the black mold suppression step and / or the pink slime suppression step or makes an emergency stop under a preset condition.
Specifically, for example, based on a signal indicating that there is a user in the bathroom, the control unit prohibits the execution of the black mold suppression step and / or the pink slime suppression step or causes an emergency stop. It is preferable that Alternatively, for example, based on a signal indicating that a bathroom door is open, the control unit prohibits the black mold suppression step and / or the pink slime suppression step from being performed, or causes an emergency stop. It is preferable.

  According to the present invention, the black mold suppression step of removing the keratin that causes black mold remaining on the washing floor, and the pink slime suppression step of removing residual water containing methylobacterium remaining on the washing floor. By carrying out, stratum corneum and methylobacterium on the washing floor can be remarkably reduced, and as a result, generation of mold on the washing floor can be remarkably suppressed.

It is a typical perspective view showing an example of the bathroom by which the washing apparatus for bathroom washing places by one Embodiment of this invention is installed. It is the typical perspective view which expanded the vicinity of the counter of FIG. It is a schematic diagram which illustrates the washing | cleaning apparatus for bathroom washing places which concerns on one Embodiment of this invention. FIG. 2 is a front view and a cross-sectional view illustrating details of a configuration of a nozzle portion in FIG. 1. FIG. 2 is a perspective view, a side view, and a plan view illustrating details of a configuration of a nozzle portion in FIG. 1. It is the schematic which shows the control flow of the washing | cleaning apparatus for bathroom washing places concerning one Embodiment of this invention. It is the schematic which shows an example of rotation operation of the nozzle part of FIG. It is a top view which shows the washing place floor matched with the black mold suppression process. It is the schematic which shows the time chart in a black mold suppression process. It is a top view which shows the washing-room floor matched with the pink slime suppression process. It is the schematic which shows the time chart in a pink slime suppression process. It is a top view of the washing floor which shows the experimental result about the effect of a pink slime suppression process. FIG. 13A is a schematic perspective view illustrating a relationship between a low-concentration sterilized water generating unit and a removal device in a bathroom washing place cleaning apparatus according to an embodiment of the present invention, and FIG. b) is a schematic sectional view. It is a schematic diagram which shows the other structural example of a low concentration germicidal water production | generation part and a removal apparatus, Fig.14 (a) is a schematic perspective view, FIG.14 (b) is a schematic sectional drawing. It is the equivalent figure of FIG. 3 which shows the 1st alternative example of a low concentration germicidal water production | generation part. It is the equivalent figure of FIG. 3 which shows the 2nd alternative example of a low concentration germicidal water production | generation part. It is the equivalent figure of FIG. 3 which shows the 1st modification of a low concentration germicidal water production | generation part. It is a top view explaining the partial disinfection effect. It is a graph which shows the relationship between the black mold and pink slime sterilization time after generation | occurrence | production in a bathroom, and the amount of sprinkling for every effective chlorine concentration. It is a graph which shows the concentration attenuation | damping after watering for every effective chlorine concentration. It is a graph which shows the death time of methylobacterium for every effective chlorine concentration. It is the schematic which shows the flow state of the 1st flowing water (1st wave) and the 2nd flowing water (2nd wave) of this embodiment, FIG.22 (a) is a schematic plan view, FIG.22 (b) ) To 22 (d) are schematic cross-sectional views. It is the chart which summarized an example of suitable sprinkling conditions. It is the schematic which shows an example of the watering range of a tap water and low concentration disinfection water. It is the schematic which shows an example of the watering range of low concentration germicidal water. It is the schematic which shows an example of the temporary stop control before a drain outlet. It is the schematic which shows the time chart in the black mold suppression process which employ | adopted the temporary stop control before a drain outlet. It is the schematic which shows the time chart in the pink slime suppression process which employ | adopted temporary stop control before a drain outlet. It is a schematic diagram which shows a mode that a wave conveys keratin, FIG. 29 (a) is a schematic plan view, and FIG.29 (b) is a schematic sectional drawing. It is a schematic diagram which shows a mode that the reattachment of the keratin becomes easy to occur by the fall of a water level. It is a schematic diagram which shows the mode of a merging of a 1st water landing part and a 2nd water landing part. Furthermore, it is a schematic diagram which shows the mode of the confluence | merging of a 3rd landing part. It is a figure which shows the experimental result for demonstrating that the remaining of keratin is a main factor of black mold generation.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding, the same components are denoted by the same reference numerals as much as possible in the drawings, and redundant description is omitted.

<Example of bathroom>
First, an example of a bathroom in which a bathroom washing apparatus 100 according to an embodiment of the present invention is installed will be described. FIG. 1 is a schematic perspective view showing an example of such a bathroom.

  As shown in FIG. 1, a bathroom 500 in which the bathroom washing place cleaning apparatus 100 is installed has a first wall 541, a second wall 542, a third wall 543, and a fourth wall arranged substantially corresponding to four side surfaces of a rectangular parallelepiped. 544. The second wall 542 faces the first wall 541, and the fourth wall 544 faces the third wall 543. The first wall 541 and the second wall 542 are connected to the third wall 543 and the fourth wall 544, respectively.

  For convenience of explanation, in this specification, the direction from the second wall 542 (the back wall in FIG. 1) to the first wall 541 (the near wall in FIG. 1) is defined as “front”, and the opposite direction. Is “backward”. Further, a direction perpendicular to the front-rear direction and the up-down direction is defined as a lateral direction.

  A bathtub 510 is provided on the fourth wall 544 side, and a washing floor 520 (bathroom washing floor) is provided between the bathtub 510 and the third wall 543. That is, the bathtub 510 and the washing ground floor 520 both extend in the front-rear direction and are arranged in the horizontal direction. The washing floor 520 is in contact with a part of the first wall 541 and a part of the second wall 542 in addition to the third wall 543.

  The washing floor 520 is provided with a drain outlet 521. The drain outlet 521 is provided in the vicinity of the center in the front-rear direction of the washing floor 520 and at the end on the bathtub 510 side in the lateral direction of the washing floor 520. The washing floor 520 is provided with a gentle (for example, about 1 to 5 °) drainage gradient (inclination) toward the drain outlet 521. Further, the surface of the washing floor 520 is coated with a hydrophilic coating.

  A counter 530 is provided on a part of the second wall 542 (on the rear side of the bathroom 500) with which the washing floor 520 is in contact. The second wall 542 of the bathroom 500 is appropriately provided with a mirror, a water tap, a shower hose, and the like.

  FIG. 2 is a schematic perspective view in which the vicinity of the counter 530 is enlarged. As shown in FIG. 2, the counter 530 includes a top plate 531 and a lower cover 532, and is disposed so as to be spaced upward from the washing floor 520. The counter 530 has a substantially rectangular shape that is long in the lateral direction when viewed from above. The width of the counter 530 in the front-rear direction of the bathroom 500 is 80 cm, and the width (length) of the counter 530 in the horizontal direction of the bathroom 500 is equal to the width of the washing floor 520 in the horizontal direction.

<Waterway of washing device for bathroom washing area>
Next, FIG. 3 is a schematic view illustrating a bathroom washing place cleaning apparatus according to an embodiment of the present invention, and shows a state where the counter 530 is viewed from the side. As shown in FIG. 3, the bathroom washing place cleaning apparatus 100 according to the present embodiment (hereinafter, abbreviated as “cleaning apparatus 100” for convenience of description) includes a nozzle portion 10 a that protrudes below a counter 530, and a counter 530. And a control unit 30 (also serving as a watering control unit and a rotation control unit as will be described later).

  As shown also in FIG. 2, the nozzle portion 10 a is disposed at a position separated from the washing floor 520 under the counter 530. The nozzle portion 10a of the present embodiment is installed near the center of the counter 530 in the lateral direction. That is, the nozzle part 10a is installed near the center in the lateral direction of the washing floor 520.

  Returning to FIG. 3, a water supply pipe 51 and a hot water supply pipe 52 are provided outside the bathroom 500 (for example, behind the second wall 542). The water supply pipe 51 is connected to a water pipe (not shown). As a result, tap water is supplied from the water supply pipe 51 to the cleaning device 100.

  Inside the counter 530 (between the top plate 531 and the lower cover 532), the first strainer 53a, the first electromagnetic valve 54a, the second electromagnetic valve 54b, the pressure regulating valve 55, the vacuum breaker 57, and the reverse A stop valve 56, a sterilized water generator 20, a second strainer 53b, and a controller 30 are provided. The 1st strainer 53a is connected with the water supply pipe 51, and the flow path of tap water has branched into two in the downstream of the 1st strainer 53a.

  One flow path on the downstream side of the first strainer 53a is configured to supply tap water (which is an example of water) directly to the nozzle portion 10a via the first electromagnetic valve 54a. Tap water is supplied to the nozzle part 10a by opening the first electromagnetic valve 54a.

  In the other flow path on the downstream side of the first strainer 53a, in order from the upstream side, the second electromagnetic valve 54b, the pressure regulating valve 55, the vacuum breaker 57, the check valve 56, the low-concentration sterilized water generator 20, the second strainer 53b is connected to supply low concentration sterilized water to the nozzle portion 10a.

  The first electromagnetic valve 54a and the second electromagnetic valve 54b are configured to perform an operation of opening the tap water channel and an operation of closing the tap water channel, respectively.

  The pressure regulating valve 55 controls the pressure of the supplied tap water. Thereby, the flow volume of the tap water supplied to the low concentration germicidal water production | generation part 20 (an example of a germicide production | generation apparatus) mentioned later can be adjusted as desired. By adjusting the flow rate of tap water supplied to the low-concentration sterilized water generating unit 20, the flow rate of low-concentration sterilized water supplied to the nozzle unit 10a is adjusted. (However, the flow rate of tap water may be adjusted using the second electromagnetic valve 54b instead of or in addition to the pressure regulating valve 55.)

  The low concentration sterilizing water generator 20 is an electrolysis chamber (electrolyzer) having an anode and a cathode. The low-concentration sterilizing water generator 20 generates a low-concentration hypochlorous acid by applying a voltage between the anode and the cathode and electrolyzing tap water flowing between the electrodes. ing. Since tap water contains chloride ions, hypochlorous acid is generated by electrolyzing the chloride ions.

  And the downstream part of the low concentration sterilization water production | generation part 20 of this embodiment becomes the removal apparatus 20b, and the hypochlorous acid production tank 20a (bactericidal agent production | generation) which is the upstream part of the said low concentration sterilization water production | generation part 20 By using the hypochlorous acid produced in the example of the apparatus to kill the methylobacterium in the tap water, washing water containing no methylobacterium is produced. The chlorine concentration of the washing water in the exit region of the low-concentration sterilizing water generator 20 is 0.4 to 1.0 ppm (the chlorine concentration of tap water is usually 0.1 to 0.3 ppm). Thereby, the low concentration sterilization water production | generation part 20 produces | generates low concentration sterilization water (an example of the wash water which does not contain methylobacterium) from tap water, without complicating a flow-path structure. .

The low-concentration sterilized water may be metal ion water (for example, water containing metal ions such as silver ions, copper ions or zinc ions) or water containing ozone. For example, when tap water is electrolyzed, acid (H ⁺ ) is consumed at the cathode, and the pH increases near the cathode. That is, alkaline water is generated in the vicinity of the cathode. On the other hand, alkali (OH ⁻ ) is consumed at the anode, and the pH is lowered in the vicinity of the anode. That is, acidic water is generated in the vicinity of the anode. By changing the flow rate in the low-concentration sterilized water generation unit 20, the concentration of the component contained in the low-concentration sterilized water can be controlled. But the low concentration germicidal water production | generation part 20 is not necessarily limited to an electrolysis chamber.

  It should be noted that at least a part of the strainers 53a and 53b, the electromagnetic valves 54a and 54b, the pressure regulating valve 55, the vacuum breaker 57, the check valve 56, the low-concentration sterilized water generator 20 and the controller 30 are provided outside the counter 530 and the bathroom 500. It is also possible to provide it outside. For example, as indicated by a broken line in FIG. 1, the control unit 30 can be provided outside the bathroom 500.

  The 1st solenoid valve 54a, the 2nd solenoid valve 54b, the pressure regulation valve 55, and the low concentration germicidal water production | generation part 20 are suitably controlled by the control part 30 as a watering control part. Thereby, the watering of the tap water (an example of water) from the nozzle part 10a and the watering of the low concentration germicidal water from the nozzle part 10a can be controlled independently of each other.

  Specifically, the first electromagnetic valve 54 a and the second electromagnetic valve 54 b open and close the tap water flow path based on a signal from the control unit 30. Thereby, the flow volume of the tap water supplied downstream is controlled. Further, the low-concentration sterilized water generator 20 switches the electrolysis chamber ON / OFF and the like based on a signal from the controller 30. In this way, the control unit 30 controls the concentration of various components in the low-concentration sterilized water, the instantaneous flow rate (flow rate per unit time) of wash water (tap water or low-concentration sterilized water) to be discharged, and the wash water to be discharged. The total water volume can be controlled.

<Details of the nozzle part of the cleaning device for bathrooms>
In the present embodiment, the position and orientation of the nozzle portion 10a can be varied so as to change the area on the washing floor 520 where the washing water (tap water or low-concentration sterilized water) is sprinkled. Specifically, the nozzle portion 10 a is driven to rotate by the electric motor 17. The electric motor 17 is composed of, for example, a stepping motor.

  The electric motor 17 is controlled by a control unit 30 as a rotation control unit. Thereby, the rotation angle and the rotation speed of the nozzle unit 10a are changed by controlling the electric motor 17 based on the signal from the control unit 30. In addition, an operation unit 35 is connected to the control unit 30 so that a bathroom user can perform an appropriate operation.

  FIG. 4A is a front view illustrating details of the configuration of the nozzle portion of this embodiment, and FIG. 4B is a cross-sectional view taken along line AA in FIG. As shown in FIGS. 4A and 4B, the nozzle portion 10a of the present embodiment includes a first water storage portion 14a, a second water storage portion 14b, a first nozzle opening 11a, and a second nozzle opening. 12a.

  The first nozzle opening 11a is a hole that connects the inside and the outside of the first water reservoir 14a, and the second nozzle opening 12a is a hole that connects the inside and the outside of the second water reservoir 14b. The tap water that has passed through the first electromagnetic valve 54a is supplied into the first water reservoir 14a and discharged from the first nozzle opening 11a. The low-concentration sterilized water generated by the low-concentration sterilized water generation unit 20 is supplied into the second water storage unit 14b and discharged from the second nozzle opening 12a.

  However, the water storage section and the nozzle opening may be shared by tap water and low-concentration sterilized water. When such a configuration is employed, the configuration of the nozzle portion 10a is simplified, but it is not possible to simultaneously perform both watering of tap water and watering of low-concentration sterilized water.

  Fig.5 (a) is a perspective view showing a mode that low concentration sterilization water is discharged as washing water from the 2nd nozzle opening 12a, FIG.5 (b) is tap water as washing water from the 1st nozzle opening 11a. It is a perspective view showing a mode that water is discharged.

  FIG. 5C and FIG. 5D are side views of the state shown in FIG. 5A and FIG. 5B, respectively, viewed along the X direction in the figure. As described above, the cleaning water is discharged from each of the first nozzle opening 11a and the second nozzle opening 12a in a fan shape or a triangular shape extending in the Z direction perpendicular to the X direction.

  FIG. 5E and FIG. 5F are plan views of the state shown in FIG. 5A and FIG. 5B viewed along the Z direction, respectively. The spread of the discharged wash water when viewed along the Z direction is narrower than the spread of the discharged wash water when viewed along the X direction. For example, each of the first nozzle opening 11a and the second nozzle opening 12a discharges cleaning water in a line when viewed along the Z direction. Depending on the shape of the first nozzle opening 11a and the second nozzle opening 12a, it is possible to adjust the manner in which the discharged cleaning water spreads.

  Moreover, the nozzle part 10a has the axis | shaft 10x extended in a Z direction. In this example, the nozzle portion 10a is disposed so that the axis 10x is substantially parallel to the vertical direction (up and down direction). The nozzle portion 10a can rotate around the shaft 10x under the driving force of the electric motor 17. Since the nozzle portion 10a discharges the cleaning water in the direction intersecting the axis 10x, the region where the cleaning water is discharged can be changed by the rotation of the nozzle portion 10a.

  In the present specification, the “water discharge direction” refers to the direction in which the wash water is discharged when viewed along the axis 10x. That is, in this example, the “water discharge direction” is a direction in which the wash water is discharged when viewed from above. When the wash water spreads in a plurality of directions and is discharged when viewed from above, the center of the plurality of directions can be set as the “water discharge direction”. Alternatively, when the cleaning water is discharged in a fan shape or a triangle shape around the nozzle openings 11a and 12a when viewed from above, the direction in which the fan-shaped or triangular range is roughly bisected is expressed as “water discharge direction. ".

<Operation of this embodiment>
Next, an operation example (action) of the cleaning apparatus 100 of the present embodiment configured as described above will be described. FIG. 6 is a schematic diagram showing a control flow of the cleaning apparatus 100 of the present embodiment.

  The control unit 30 of the cleaning device 100 according to the present embodiment sprays tap water (an example of water) from the nozzle unit 10a onto the wash floor 520 as a water spray control unit, thereby converting the horny substance on the wash floor 520 into tap water. The black mold suppression step S1 that flows to the drain port 521 together is performed. Here, the control unit 30 of the present embodiment controls the electric motor 17 as the rotation control unit during the black mold suppression step S1, and continuously performs the nozzle operation while the nozzle unit 10a is rotating. The tap water is sprinkled on the washing floor 520 from the section 10a.

  And the control part 30 of this embodiment is a low concentration disinfection which is an example of the wash water which does not contain methylobacterium from the nozzle part 10a on the bathroom washing-room floor 520 after the black mold suppression process S1 as a watering control part. By spraying water, the tap water on the washing floor 520 is caused to flow to the drain outlet 521, so that the pink slime suppression step S3 is performed to replace the tap water on the washing floor 520 with low-concentration sterilized water. (The low-concentration sterilized water in this embodiment is only an example of wash water aimed at zero methylobacterium, but if there is a sterilization action, the secondary effect described later with reference to FIG. 18 is obtained. be able to). Here, the control unit 30 of the present embodiment controls the electric motor 17 as a rotation control unit even during the execution of the pink slime suppression step S3, and continuously while the nozzle unit 10a is rotating. The low-concentration sterilized water is sprayed on the washing floor 520 from the nozzle portion 10a.

  Here, FIG. 7 is a schematic diagram illustrating an example of the rotation operation of the nozzle portion 10a of the present embodiment. In each arrow of FIG. 7, when the nozzle part 10 rotates in the direction shown with the broken line, it represents that the nozzle part 10 does not discharge cleaning water (tap water or low concentration sterilized water). On the contrary, when the nozzle part 10 rotates in the direction represented by the solid line, it represents that the nozzle part 10 discharges cleaning water (tap water or low-concentration sterilized water).

  In the present embodiment, when the black mold suppressing step S1 is started, the nozzle 10a can land tap water substantially vertically toward the second wall 542 below the counter 530 (initial position P1). Thus, the rotation of the nozzle portion 10a is started.

  As will be described later, in the present embodiment, after the end of the pink slime suppression step S3, the nozzle portion 10a is moved to such an initial position P1. However, since the nozzle portion 10a may be further rotated for some reason, the nozzle portion 10a is first moved to such an initial position P1 as necessary (origin finding step A01). ). During the origin finding process A01, tap water discharge is not started.

  Next, the nozzle portion 10a is moved from the initial position P1 (first position where tap water can be landed at a position on one side with respect to the drain port 521) to the drain port 521. A forward rotation operation in the clockwise direction is performed until reaching a position where the tap water can be landed (second position P2) (first forward rotation operation A02). During this time, the first electromagnetic valve 54a is opened (ON), tap water is discharged, and the first half of the black mold suppression step S1 is performed.

  During this forward rotation operation, as shown in FIG. 8, the nozzle portion 10a passes through a fourth position P4 that is symmetrical to the second position P2 when viewed in the lateral direction. However, as shown in FIG. Then, the average rotational speed from the initial position P1 to the fourth position P4 is set higher than the average rotational speed from the fourth position P4 to the second position P2.

  FIG. 8 is a schematic plan view showing a region of the washing floor 520 where the black mold suppressing step S1 is performed according to the control flow of the present embodiment. FIG. 9 is a schematic diagram showing a time chart in the black mold suppressing step S1.

  As shown in FIG. 9, the control unit 30 of the present embodiment performs control such that the electric motor 17 alternately repeats the rotation state and the stop state as a rotation control unit (thereby referring to FIG. 29). In this way, a wave (pulsation) of flowing water as described later is formed). And the control part 30 changes the average rotational speed of the nozzle part 10a by changing the length of time of a stop state. As shown in FIG. 9, the length of the stop state is increased between the fourth position P4 and the second position P2 and between the first position P1 and the fourth position P4. The average rotation speed of the part 10a is reduced. According to this, the average rotation speed of the nozzle part 10a can be changed very easily and with high accuracy.

  In FIG. 9 (and FIG. 11 described later), “1” in the graph shown as “nozzle portion rotation” represents that the nozzle portion 10a is rotating in the clockwise direction (forward rotation operation). “0” represents that the nozzle portion 10a has stopped rotating, and “−1” represents that the nozzle portion 10a is rotating counterclockwise (reverse rotation operation).

  Thereafter, the nozzle portion 10a continues the forward rotation operation in the clockwise direction from the second position P2 (position where tap water can be landed toward the drain port 521) to the initial position P1 (second forward rotation). Operation A03). However, during this time, the first electromagnetic valve 54a is closed (ON), tap water is not discharged, and the rotation speed of the nozzle portion 10a is also increased.

  Then, when the nozzle portion 10a reaches the initial position P1, this time, the counterclockwise reverse rotation operation is started (first reverse rotation operation A04). During the reverse rotation operation until returning to the second position P2, the first electromagnetic valve 54a is opened (ON), tap water is discharged, and the second half of the black mold suppression step S1 is performed.

  Thereafter, the nozzle portion 10a continues the counterclockwise reverse rotation operation from the second position P2 (position where tap water can be landed toward the drain port 521) to the initial position P1 (second reverse). Rotating operation A05). During this period, the first electromagnetic valve 54a is closed (ON), tap water is not discharged, and the rotational speed of the nozzle portion 10a is also increased (water stopping step S2).

  According to the black mold suppressing step S1 as described above, tap water is continuously sprayed from the nozzle unit 10a onto the washing floor 520 while the nozzle unit 10a is rotating. It becomes the water flow energized with rotation, and the keratin on the washing place floor 520 can be washed away effectively.

  Furthermore, according to the black mold suppression step S1, tap water is discharged during the first forward rotation operation A02 and during the first reverse rotation operation A04, and during the second forward rotation operation A03. Not. That is, tap water is continuously discharged from the upstream region of the drainage gradient to the downstream region. Accordingly, the stratum corneum on the washing floor 520 can be more effectively flowed to the drain outlet 521 together with tap water.

  Next, the nozzle part 10a is directed from the initial position P1 (first position where low-concentration sterilizing water can be landed at a position on one side of the drainage port 521) toward the drainage port 521. Then, the forward rotation operation in the clockwise direction is performed until the position (second position P2) where the low-concentration sterilizing water can be landed (replacement first forward rotation operation A06). During this time, the first solenoid valve 54a is returned to the closed state (OFF), the second solenoid valve 54b is opened (ON), the low-concentration sterilizing water is discharged, and the first half of the pink slime suppression step S3 is performed. Is done.

  During this forward rotation operation, as shown in FIG. 10, the nozzle portion 10a passes through a fourth position P4 that is symmetrical to the second position P2 when viewed in the lateral direction. However, as shown in FIG. In the pink slime suppression step S3 (first half), the average rotational speed from the initial position P1 to the fourth position P4 is changed from the fourth position P4 to the second position P2, as in the black mold suppression step S1 (first half). It is higher than the average rotation speed.

  FIG. 10 is a schematic plan view showing a region of the washing floor 520 where the pink slime suppression step S3 is performed according to the control flow of the present embodiment, and FIG. 11 is a time chart in the pink slime suppression step S3. FIG.

  As shown in FIG. 11, the control unit 30 of the present embodiment performs control such that the electric motor 17 alternately repeats the rotation state and the stop state as a rotation control unit. And the control part 30 changes the average rotational speed of the nozzle part 10a by changing the length of time of a stop state. As shown in FIG. 11, the length of the stop state is increased between the fourth position P4 and the second position P2, and between the first position P1 and the fourth position P4. The average rotation speed of the part 10a is reduced. According to this, the average rotation speed of the nozzle part 10a can be changed very easily and with high accuracy.

  Moreover, in this embodiment, the average rotational speed at the time of implementation of the black mold suppression process S1 shown in FIG. 9 and the average rotational speed at the time of implementation of the pink slime suppression process S3 shown in FIG. 11 are different. That is, the optimal average rotation speed of the nozzle portion 10a is adopted for each of the black mold suppression step S1 and the pink slime suppression step S3.

  In particular, in the present embodiment, the average rotation speed when the pink slime suppression process S3 is performed is smaller than the average rotation speed when the black mold suppression process S1 is performed. Therefore, the pink slime suppression step S3 is performed more slowly than the black mold suppression step S1 (the rotation time of the nozzle portion 10a for each region of the washing floor 520 is shown in FIGS. 8 and 10). Along with this, for example, the low-concentration sterilizing water sprinkling region (spouting distance) in the pink slime suppression step S3 is set wider (longer) than the tap water sprinkling region (spouting distance) in the black mold suppression step S1. Becomes easy. In this case, the tap water sprayed on the bathroom washroom floor 520 can be more reliably replaced with the low-concentration sterilized water. Such an example will be described later with reference to FIGS.

  Thereafter, the nozzle portion 10a continues the forward rotation operation in the clockwise direction from the second position P2 (position where the low-concentration sterilizing water can be landed toward the drain port 521) to the initial position P1 (replacement second). 2 forward rotation operation A07). However, during this time, the second electromagnetic valve 54b is closed (ON), the low concentration sterilizing water is not discharged, and the rotation speed of the nozzle portion 10a is also increased.

  Then, when the nozzle portion 10a reaches the initial position P1, this time, the counterclockwise reverse rotation operation is started (replacement first reverse rotation operation A08). During the reverse rotation operation until returning to the second position P2, the second electromagnetic valve 54b is opened (ON), the low concentration sterilizing water is discharged, and the latter half of the pink slime suppression step S3 is performed. .

  Thereafter, the nozzle portion 10a of the present embodiment temporarily stops at the second position P2 (position where the low-concentration sterilized water can be landed toward the drain port 521) and concentrates the tap water at the drain port 521. Alternatively, it may be replaced with low-concentration sterilized water. The pause time is, for example, 50 seconds.

  Thereafter, the nozzle portion 10a continues the counterclockwise reverse rotation operation from the second position P2 (a position where the low-concentration sterilized water can be landed toward the drain port 521) to the initial position P1 (the first counterclockwise direction). 2 reverse rotation operation A09). During this time, the second electromagnetic valve 54b is closed (ON), tap water is not discharged, and the rotation speed of the nozzle portion 10a is also increased (water stopping step S4).

  According to the pink slime suppression step S3 based on the control flow as described above, since the low-concentration sterilizing water is sprinkled on the washing floor 520 continuously from the nozzle portion 10a while the nozzle portion 10a is rotating, The concentration sterilized water becomes a water flow energized with the rotation of the nozzle portion 10a, and the tap water on the washing floor 520 can be washed away effectively.

  Furthermore, according to the pink slime suppression step S3 based on the control flow, the low-concentration sterilizing water is discharged between the first forward rotation operation A06 and the first reverse rotation operation A08, and the second forward rotation operation. It is not implemented during A07. That is, the water discharged from the low-concentration sterilized water is continuously landed from the upstream region to the downstream region of the drainage gradient. Thus, the tap water on the washing floor 520 can be more effectively replaced with the low-concentration sterilized water by flowing the tap water on the washing floor 520 to the drain outlet 521 more effectively.

  FIG. 12 shows that the region of the wash floor 520 in which only the black mold suppression step S1 is performed and the region of the wash floor 520 in which the pink slime suppression step S3 is performed after the black mold suppression step S1 are repeated for 1 month after bathing by the bather. It is a result of an actual experiment conducted. In the area of the washing floor 520 where only the black mold suppression step S1 was performed, the amount of stratum corneum remaining was almost zero, and although black mold was not generated, pink slime was generated. On the other hand, in the area of the washing floor 520 where the pink slime suppression step S3 was performed after the black mold suppression step S1, the remaining amount of keratin was almost zero, the generation of black mold was not observed, and the generation of pink slime was also not observed. .

  As described above, according to the present embodiment, the amount of methylobacterium is reduced after the black mold suppression step S1 in which the keratin on the washing floor 520 is removed by spraying tap water (an example of water). The amount of methylobacterium remaining on the washing floor 520 is marked by performing the pink slime suppression step S3 in which the tap water on the washing ground floor 520 is replaced with the low concentration sterile water by spraying the low concentration sterile water. Can be reduced. Thereby, generation | occurrence | production of slime in the washing floor 520 can be suppressed effectively.

  Moreover, according to this embodiment, as shown in FIG. 9, while rotating from the 4th position P4 to the 2nd position P2, the average rotational speed of the nozzle part 10a is made small, and the per unit area of tap water is scattered. The amount of water is increasing. This is because the area of the washing floor 520 where water is sprinkled while rotating from the fourth position P4 to the second position P2 (area relatively far from the nozzle portion 10a) from the first position P1 to the fourth position P4. Compared to the area of the washing floor 520 where the tap water is sprinkled while rotating until the area (relatively close to the nozzle portion 10a), organic substances such as dirt generated from the human body tend to remain. Is. In this way, for areas where organic matter, especially stratum corneum, has a high residual tendency (or a large residual amount), increase the amount of water per unit area, increase the amount of water per unit time, or the total amount of water. By increasing the number, the occurrence of black mold on the washing floor 520 can be more effectively suppressed.

  And according to this embodiment, as shown in FIG. 11, while rotating from the 4th position P4 to the 2nd position P2, the average rotational speed of the nozzle part 10a is made small, and per unit area of low concentration sterilization water The amount of water sprinkled is increasing. This is because the amount of water sprayed per unit area of tap water sprayed while rotating from the fourth position P4 to the second position P2 is sprinkled while rotating from the first position P1 to the fourth position P4. It corresponds to more than the amount of watering per unit area. In this way, for areas with a large amount of water sprayed from tap water, the amount of low-concentration sterilized water per unit area can be increased, the amount of low-concentration sterilized water per unit time can be increased, or low-concentration sterilization can be performed. By increasing the total amount of water, the occurrence of slime on the washing floor 520 can be more effectively suppressed.

  Moreover, the control part 30 of this embodiment controls the rotational speed of the nozzle part 10a at the time of implementation of the black mold suppression process S1 and / or the pink slime suppression process S3. The time for spraying tap water or low-concentration sterilized water on the washing floor 520 can be changed. Thereby, black mold suppression process S1 and / or pink slime suppression process S3 can be implemented for each area | region of the washing-room floor 520 on a fine control condition. In addition, the cleaning device 100 according to the present embodiment has such a sprinkling time changing function when the tap water supply pressure is low (the water supply amount per unit time is small) or the like. It is effective in realizing.

<Effect of this embodiment>
As described above, the cleaning device 100 according to the present embodiment is a cleaning device for a bathroom washing floor that constitutes a washing place of the bathroom 500 and also has a drainage port 521, and is configured to wash the washing water on the washing floor 520. The nozzle part 10a which is a washing | cleaning means to sprinkle water, and the control part 30 which controls the nozzle part 10a are provided. And the control part 30 controls the nozzle part 10a, and the black mold which sprinkles washing water so that the keratin which is the cause of generation | occurrence | production of the black mold which remains on the washing place floor 520 is discharged | emitted from the said washing place floor 520 to the drain outlet 521 is carried out. A suppression step S1, and a pink slime suppression step S3 for sprinkling the wash water so that the residual water containing methylobacterium remaining on the washing floor 520 is replaced with the wash water from which the methylobacterium has been removed. carry out.

  According to the cleaning apparatus 100 of the present embodiment, the black mold suppression step S1 for removing the keratin that causes black mold remaining on the washing floor 520, and the residual water containing methylobacterium remaining on the washing floor 520 are removed. By performing the pink slime suppression step S3, the stratum corneum and methylobacterium on the washing floor 520 can be remarkably reduced, and as a result, generation of mold on the washing floor 520 can be remarkably suppressed. .

  In particular, in the pink slime suppression step S3, the residual water containing methylobacterium remaining on the washing floor 520 is replaced with low-concentration sterilized water from which methylobacterium has been removed, so that a high-concentration immediate effect is obtained. Even without using sterilized water, the methylobacterium on the washing floor 520 can be significantly reduced. And it does not mean that all nutrients are killed or removed rather than sterilizing the bacteria in the bathroom 500, and it is only necessary to kill a small amount of methylobacterium, so that water is sprayed in the pink slime suppression step S3. The low-concentration sterilized water does not need to be a high-concentration immediate-effective sterilized water as conventionally thought, and the running cost can be kept low.

  It can be said that the cleaning apparatus 100 according to the present embodiment is not a reactive technique that sterilizes after generation of mold or pink slime, but a preliminary technique that hits the generation source in advance. The types of mold generated in the bathroom 500 are black mold and pink slime. According to the cleaning device 100 of this embodiment, 99% or more customer satisfaction can be achieved by suppressing these.

  The present inventor has found a causative substance that causes black mold and pink slime in the bathroom 500 (discovery). That is, the present inventor confirmed that the black mold generation factor is keratin (see FIG. 33), and that the pink slime generation factor is a trace amount of methylobacterium in tap water, which grows on the washing floor. They found that pink slime was generated. And the identification of these has made it possible to develop a technique that removes these causative substances before they occur, without killing mold or pink slime. The present embodiment has been established as a cleaning technique that does not require high concentration of sterilizing water or long-term sterilization.

  In this embodiment, in the black mold suppression step S1, tap water as the first washing water is sprinkled to remove the keratin from the washing floor 520, and in the pink slime suppression step S3, methylobacterium is removed from the washing floor 520. In order to do this, low-concentration sterilized water as the second washing water is sprayed, and the black mold suppression step S1 and the pink slime suppression step S3 are each performed in a manner that is temporally separated from each other.

  Thereby, the 1st washing water sprinkling in black mold suppression process S1 for wash | cleaning so that exfoliation may be peeled off from a floor surface, and the 2nd washing water sprinkling replaced with the 1st washing water in pink slime suppression process S3, Can be performed independently. For example, the former water force and water amount are necessary to some extent, while the latter water force and water amount are not so necessary. In addition, the latter requires treatment using a filter or sterilizer that removes or kills methylobacterium, and the conditions can be set independently for the two sprinkling waters with different requirements. it can.

  Moreover, in this embodiment, in addition to the nozzle part 10a for discharging the tap water as 1st washing water and the low concentration sterilization water as 2nd washing water as a washing | cleaning means, a flow upstream from the nozzle part 10a. The road has a low-concentration sterilized water generator 20 as a removal device for removing methylobacterium from tap water. The second washing water is water in which methylobacterium is not present in the water before being sprayed on the washing floor 520 by removing methylobacterium.

  In short, the keratin remaining on the washing floor 520 can be removed with water. If it is water, the water force and the amount of water necessary for exfoliating the keratin can be easily secured. Thereby, exfoliation can be realized reliably and inexpensively. On the other hand, with respect to the removal of methylobacterium, in order to surely remove the methylobacterium sprayed on the wide floor surface, a large amount of the second washing water as the replacement water is required. This is because if removal failure occurs, it may cause pink slime. Therefore, a removal device is provided in the flow path upstream of the nozzle portion 10a, and methylobacterium is removed before watering by the removal device, so that residual water remaining on the washing floor 520 is present. It can be replaced with water that does not. This makes it possible to reliably remove methylobacterium, and to prevent the generation of pink slime in a small amount of water and in a short time.

  As described above, the cleaning apparatus 100 according to the present embodiment has a practically excellent bathroom cleaning technique capable of preventing the occurrence of black mold or pink slime on the bathroom washing floor 520 at a low cost, reliably and in a short time. Established.

  In the present embodiment, the black mold suppression step S1 is always performed first, and the pink slime suppression step S3 is always performed later.

  In the black mold suppression step S1, water containing methylobacterium is sprinkled using inexpensive tap water as the first wash water. For this reason, if this is performed in a later step, the cause of the occurrence of pink slime will be created again. Therefore, by performing the black mold suppression step S1 first and then spraying the second washing water, the generation of black mold and pink slime can be reliably suppressed.

  Moreover, in this embodiment, the control part 300 implements the water stop process as a leaving process in which water sprinkling is prohibited after the pink slime suppression process S3 by controlling the nozzle part 10a which is a washing | cleaning means. ing.

  Thereby, since the wash water containing methylobacterium is not sprinkled accidentally, the growth of pink slime can be effectively suppressed.

  In the present embodiment, the second washing water is water containing hypochlorous acid or water containing hypochlorous acid after the sterilization concentration is lowered. Moreover, the low concentration germicidal water production | generation part 20 has the hypochlorous acid production tank 20a, and the removal apparatus 20b is continuously provided in the said hypochlorous acid production tank 20a. And when tap water passes the said removal apparatus 20b, methylobacterium is removed by the disinfection action of hypochlorous acid produced | generated by the hypochlorous acid production tank 20a, and it becomes 2nd wash water. The hypochlorous acid generation tank 20a is adapted to generate hypochlorous acid by electrolyzing tap water, and at least the second washing water is used in the nozzle section 10a for energization of the hypochlorous acid generation tank 20a. As long as the water is discharged from the water, it is always continued.

  The use of water containing hypochlorous acid has been studied for the purpose of cleaning the bathroom 500. However, in the conventional technical common sense, the concentration of hypochlorous acid needs to be high in order to have a sufficient effect of disinfecting mold after watering. Specifically, the concentration at which hypochlorous acid is generated from chlorine in tap water has a low bactericidal action, and the bactericidal action (bactericidal power) is further attenuated by a decrease in the concentration of sprinkling water (water discharge). A special treatment for concentration was required and a long time was required for the sterilization treatment.

  However, low-concentration hypochlorous acid can be used as the second cleaning water of the present embodiment. Moreover, the 2nd wash water of this embodiment should just remove methylobacterium, Comprising: It loses a bactericidal action after watering, and may just turn into water.

  Furthermore, since the removal apparatus of the present embodiment is provided in the hypochlorous acid generation tank 20, the generation of the second cleaning water can be realized with a very simple configuration.

  In this case, since energization of the hypochlorous acid generation tank 20 is continued until the water discharge from the nozzle portion 10a of the second washing water is completed, sprinkling of fresh water is surely prevented even with simple control. be able to. Thereby, generation | occurrence | production of the pink slime by incorrect fresh water sprinkling can be prevented easily and reliably.

  The bathroom 500 of the present embodiment constitutes a washing place for the bathroom 500 and has a washing floor 520 having a drain 521, the washing apparatus 100, a counter 530 installed on one side of the bathroom 500, the Bathroom walls 541 to 544 provided at the peripheral edge of the bathroom 500, and the nozzle unit 10a serving as a cleaning unit is disposed on the counter 530 side, but the nozzle unit 10a serving as the cleaning unit is In the drainage flow flowing through the floor 520 toward the drainage port 521, the first washing water and / or the second washing water may be landed on the bathroom walls 541 to 544 upstream of the drainage port 521. .

  The part of the floor where keratin and methylobacterium are most likely to remain is the position where the counter 530 is used to wash the body. By disposing the nozzle unit 10a, which is a cleaning device, at this position, for example, when water from which methylobacterium has been removed using hypochlorous acid is used as the second cleaning water, the concentration in the water discharge (sprinkling) is attenuated. Therefore, the concentration of hypochlorous acid may be even lower.

  Further, in this case, a high water flow can be provided in the vicinity of the water discharge port 521 by the flow of the water flowing toward the water discharge port 521, and the water force acts to push keratin or the like toward the water discharge port 521. it can. In general, in the vicinity of the drainage port 521, the keratin may be difficult to remove, for example, the keratin may be reattached due to a decrease in the water level due to the diffusion of water. In particular, the nozzle unit 10a serving as a cleaning means has a first cleaning water and / or a second cleaning in the bathroom walls 541 to 433 upstream of the drainage port 521 in the drainage flow flowing through the washing floor 520 toward the drainage port 521. When water is allowed to land, keratin can be removed more reliably.

  Further, the surface of the washing floor 520 is preferably hydrophilic-coated. In this case, even if keratin and methylobacterium adhere to the washing floor 520, the high affinity between the washing floor 520 and water works extremely effectively when removing the keratin and bacteria. That is, black mold suppression (removal of keratin) or pink slime suppression (replacement with water not containing methylobacterium) can be achieved quickly and sufficiently even with a small amount of washing water and a low washing water flow.

  Further, it is preferable that a groove 522 extending in a direction that is not parallel to the direction in which the first cleaning water and / or the second cleaning water land is formed in the washing floor 520 (FIG. 29B). reference). In this case, when the sprayed washing water collides with the washing ground floor 520 or flows on the washing ground floor 520, the washing water collides with the groove 522 and a vertical wave (water pulsation) is formed. As the water flow is disturbed in this way, the keratin and methylobacterium are easily peeled off from the washing floor 520. Further, even when the washing water spreads and flows on the washing floor 520, the wave prevents the keratin and methylobacterium from reattaching to the floor. Thereby, even if the water flow and the amount of water to be sprinkled are small, the stratum corneum and methylobacterium can be reliably removed from the floor.

  Further, the control unit 300 controls the nozzle unit 10a as a cleaning unit so that the first cleaning water is drained to the drain outlet 521 after the black mold suppression step S1 and before the pink slime suppression step S3. It is preferable that the waiting watering waiting process is implemented. In this case, the amount of the second washing water required for replacing the first washing water with the second washing water is small.

  In addition, when the washing floor 520 of the bathroom 500 is washed using the washing apparatus 100 of the present embodiment, it is more desirable to adopt a regulation that matches the use mode of the user. Specifically, if water is sprayed from the cleaning device 100 against the user's intention, the water spray collides with a person, or the impact remains on the keratin removal and replacement. It is also important to prevent scattering outside the bathroom.

  For example, it is preferable that the control unit 300 prohibits the execution of the black mold suppression step S1 and / or the pink slime suppression step S3 or makes an emergency stop under a preset condition. Specifically, for example, based on a signal indicating that there is a user in bathroom 500, control unit 300 prohibits the black mold suppression step S1 and / or pink slime suppression step S3, or makes an emergency stop. It is preferable that it is such. Alternatively, for example, based on a signal indicating that the door of the bathroom 500 is open, the control unit 300 prohibits the black mold suppression step S1 and / or the pink slime suppression step S3, or causes an emergency stop. It is preferable that

<Variation of watering control>
The cleaning device 100 according to the present embodiment is a cleaning device for a bathroom washing place floor that constitutes a washing place of the bathroom 500 and washes the washing place floor 520 having the drain port 521, and is a washing unit that sprays washing water on the washing place floor 520. The nozzle part 10a which is and the control part 30 which controls the nozzle part 10a are provided. And the control part 30 controls the nozzle part 10a, and the black mold which sprinkles washing water so that the keratin which is the cause of generation | occurrence | production of the black mold which remains on the washing place floor 520 is discharged | emitted from the said washing place floor 520 to the drain outlet 521 is carried out. A suppression step S1, and a pink slime suppression step S3 for sprinkling the wash water so that the residual water containing methylobacterium remaining on the washing floor 520 is replaced with the wash water from which the methylobacterium has been removed. It is supposed to be implemented. And the control part 300 is comprised so that the watering with respect to the washing-room floor 520 may be changed in the black mold suppression process S1 and the pink slime suppression process S3.

  In the black mold suppression step S <b> 1, it is important to remove the keratin remaining on the washing floor 520 without discharging it to the drain outlet 521. When removing the stratum corneum only by watering, it is important to remove the stratum corneum, and it is desirable to increase the amount of water and water.

On the other hand, in the pink slime suppression step S3 in which washing water that does not contain methylobacterium is made, and this is sprinkled to replace the remaining water, if the removal of methylobacterium is insufficient, the sprayed methylobacterium Umm causes pink slime. Therefore, high removal performance is required. In addition, when the washing water sprayed in the pink slime suppression step S3 has no bactericidal properties, or when the sterilizing component has a low concentration, the generated pink slime cannot be removed. High accuracy is required for the performance of removing um.
Thus, there are different requirements in the two steps of the present embodiment. For example, if the pink slime suppression step S3 is performed with the amount of water or the water flow in the black mold suppression step S1, the methylobacterium is increased before watering. In order to remove it with high accuracy, it is required that the removal means has a very high performance.
In this embodiment, in the pink slime suppression step S3, based on the inventor's unique knowledge that there is no need to soften or peel the keratin, the simple method of changing the method of water spraying optimally changes both methods. Satisfies the requirements at a high level and improves the removal performance of methylobacterium.

In addition, the nozzle part 10a as a washing | cleaning means is comprised so that water may be used as the washing water used for the black mold suppression process S1, and the control part 30 performs the pink slime suppression process after performing the black mold suppression process S1. S3 is implemented.
Here, the control unit 30 controls the nozzle unit 10a to lower the bathroom walls 541 to 544 standing around the washing floor 520 and the washing floor 520 in both the black mold suppression step S1 and the pink slime suppression step S3. It is more preferable that water is sprayed on the floor, and from the water spraying position with respect to the lower part of the bathroom walls 541 to 544 by tap water in the black mold suppression step S1, the methylo in the pink slime suppression step S3 performed after the black mold suppression step S1. It is more preferable that the water sprinkling position with respect to the lower part of the bathroom walls 541 to 544 by the washing water from which the bacteria are removed is higher.

The inventor of the present invention also found that most of the factors causing black mold in the bathroom 500 are keratin, and also found that water can be used if keratin is removed. Therefore, it is preferable to carry out the black mold suppression step S1 with the cheapest and safest water, for example, tap water.
On the other hand, when performing black mold suppression process S1 with water, it will also sprinkle so that the methylobacterium in water may be increased. Therefore, it is preferable that the black mold suppression step S1 is always executed before the pink slime suppression step S3.
By adopting the simple control mode as described above, the problem of black mold suppression by water can be solved.
Furthermore, since keratin is generated when the user washes the body, it tends to accumulate on the walls of the bathroom walls 541 to 544 due to the influence of a shower or the like. Therefore, the stratum corneum near the wall can be surely removed by allowing the water spray of the black mold suppressing step S1 to reach the lower part of the wall.
On the other hand, if methylobacterium is sprinkled on the wall, the possibility that pink slime is generated on the wall increases. For this reason, the water spray area | region of pink slime suppression process S3 is made into a wider range than the latter so that all the water spray area | regions of black mold suppression process S1 may be covered. It is preferable to spray water. As a result, it is possible to realize cleaning with simple control and inexpensive water, and to provide an extremely useful effect in practice.

  Moreover, the control part 30 controls the nozzle part 10a which is a washing | cleaning means so that the amount of water sprayed per unit time of the pink slime suppression process S3 may decrease compared with the amount of water sprayed per unit time of the black mold suppression process S1. It is preferable to do so.

In the pink slime suppression step S3, for example, water obtained by removing methylobacterium in water before watering is sprinkled, but it is not necessary to have the ability to soften or peel the keratin attached to the floor surface. That is, in the pink slime suppression step S3, it is sufficient that the amount of water sprayed per unit time is small. And it is easy to remove methylobacterium before watering if the amount of watering is small.
On the other hand, if the amount of sprinkling (flow rate) in the pink slime suppression step S3 is increased, the replacement performance is improved and the time required for replacement can be shortened. However, the thing with high production | generation performance for ensuring the production amount of the washing water which does not contain methylobacterium will be needed.
In short, in the pink slime suppression step S3, it is preferable to reduce the amount of sprinkled water per unit time based on the knowledge that the amount of water and the water flow with respect to the water spray are unnecessary. This makes it possible to construct a system that can reliably replace the remaining water while being inexpensive.

  In addition, the control unit 30 controls the nozzle unit 10a, which is a cleaning unit, to perform a watering standby process for stopping watering after the black mold suppression process S1 and before the pink slime suppression process S3. It is preferable that it is such.

  For example, in black mold suppression process S1 performed with water, a lot of residual water remains due to a lot of water spray. In order to completely replace this with washing water that does not contain methylobacterium, a lot of washing water that does not contain methylobacterium is required. Therefore, it is preferable to provide a standby process for waiting for the remaining water remaining after water spraying in the black mold suppressing process S1 to be drained to the drain outlet 521. This makes it possible to further reduce the amount of washing water that does not contain methylobacterium, and to make the structure cheaper and simpler.

  Furthermore, the control unit 30 controls the nozzle unit 10a, which is a cleaning unit, so that the water sprayed water per unit time in the pink slime suppressing process S3 is smaller than the water sprayed water per unit time in the black mold suppressing process S1. It is preferable to do so.

  According to this, it can suppress that methylobacterium in the residual water of the washing-room floor 520 is scattered to the bathroom walls 541-544 etc. with the watering in pink slime suppression process S3. As a result, it is possible to suppress the remaining water scattered on the bathroom walls 541 to 544 from being scattered again on the replacement washing floor 520 and generating pink slime on the washing floor 520.

  Further, the control unit 30 increases the total amount of water sprayed per unit area of the washing ground floor 520 in the pink slime suppression step S3 as compared with the total amount of water sprayed per unit area of the washing ground floor 520 in the black mold suppression step S1. Thus, it is preferable to control the nozzle part 10a which is a washing | cleaning means.

  In the bathroom 500, even if the water level at the sprinkling landing position is high, the water level drops on the floor surface of the bathroom 500 during the drainage process toward the drain outlet 521, and the drainage flow rate also decreases. For this reason, in pink slime suppression process S3 (replacement process), there exists a risk of maintaining the state which methylobacterium in residual water adhered to the floor surface, and causing poor replacement. Therefore, in the pink slime suppression step S3 (replacement process), even if the amount of sprinkling water per unit time is reduced, the amount of sprinkling water per unit area of the floor surface of the washing floor 520 is increased to replace the water. It is possible to effectively prevent the residue from occurring.

  Moreover, the control part 30 comes to control the nozzle part 10a which is a washing | cleaning means so that the total amount of the sprinkled water in pink slime suppression process S3 may increase compared with the total amount of the sprinkled water in black mold suppression process S1. It is preferable.

  The cheapest and most reliable pink slime is the control mode in which washing water containing no methylobacterium is slowly and accurately generated, and a small amount of water is sprinkled slowly, while the total amount sprayed is increased. Can be prevented.

  Moreover, the nozzle part 10a which is a washing | cleaning means is provided in one side of the bathroom 500, and wash | cleans the washing floor 520 sequentially, rotating, and the control part 30 rotates rotation of the nozzle part 10a which is a washing | cleaning means. In addition, the controller 30 is configured to control the rotation speed, and the controller 30 further reduces the rotation speed of the nozzle portion 10a in the pink slime suppression step S3 as compared to the rotation speed of the nozzle portion 10a in the black mold suppression step S1. Thus, it is preferable to control the nozzle part 10a.

  In other words, the water spraying for the removal of keratin in the black mold suppression step S1 sprinkles a lot of vigorous water and increases the rotational speed of the nozzle 10a, which is a cleaning means, to reduce the drainage flow rate and the drainage flow rate. It is desirable to surely prevent re-deposition of the keratin on the floor surface, which is likely to occur as a result of the decrease, and replacement with washing water that does not contain bacteria in the pink slime suppression step S3 does not scatter little washing water. It is desirable that the washing means is rotated at a low speed so that no substitution residue occurs due to a drop in the water level accompanying a drop in the amount of water.

<Change according to the situation of watering control>
The cleaning device 100 according to the present embodiment is a cleaning device for a bathroom washing place floor that constitutes a washing place of the bathroom 500 and washes the washing place floor 520 having the drain port 521, and is a washing unit that sprays washing water on the washing place floor 520. The nozzle part 10a which is and the control part 30 which controls the nozzle part 10a are provided. And the control part 30 controls the nozzle part 10a, and the black mold which sprinkles washing water so that the keratin which is the cause of generation | occurrence | production of the black mold which remains on the washing place floor 520 is discharged | emitted from the said washing place floor 520 to the drain outlet 521 is carried out. A suppression step S1, and a pink slime suppression step S3 for sprinkling the wash water so that the residual water containing methylobacterium remaining on the washing floor 520 is replaced with the wash water from which the methylobacterium has been removed. carry out.
Furthermore, the control unit 30 according to the present embodiment includes an execution condition changing unit 30a that changes the water spraying on the washing floor 520 in at least one of the black mold suppressing step S1 and the pink slime suppressing step S3 according to a preset condition. (See FIG. 3).

The present inventor was able to obtain prior knowledge, not a technique for sterilizing the generated mold, in developing a cleaning technique for suppressing mold in the bathroom 500. This can suppress the occurrence of molds for a very long time in a short time by using easy washing water such as water without using a high-concentration disinfectant or the like.
When water, bacteria-free water, or low-concentration sterilized water is used as washing water, if black mold or pink slime is generated, it cannot be sterilized by watering the washing water. The growth of black mold and pink slime cannot be stopped. Therefore, it is important how to prevent black mold and pink slime from being generated.
To explain in more detail, removal of stratum corneum is basically possible with water, but if the stratum corneum is abundant or if the stratum corneum has dried and stuck to the floor surface, Removal may be difficult and may remain. This causes black mold. In addition, once pink slime is generated, it is covered with mucous membrane, so it is difficult to remove it with water, and it is necessary to take measures using a high sterilizing performance.
Therefore, it is preferable to provide the execution condition changing means 30a, set the conditions according to the risk of mold occurrence in advance, and carefully change the watering control of each step S1, S3 according to the situation. is there. As a result, the generation of mold and pink slime has been successfully suppressed as compared with the manual control and the constant (fixed) control.

For example, the preset condition is a condition based on the standing time from bathing to the start of cleaning.
If the standing time from bathing to the start of washing becomes longer, the keratin is dried and the thin keratin sticks firmly to the floor surface. In addition, methylobacterium in water also adheres to the wash floor 520 by drying. In a state where the keratin is fixed to the washing floor 520, it is necessary to take measures to improve the keratin removal performance.
Therefore, for example, the longer the standing time, the more the drying proceeds and the fixing proceeds, and if the standing time is short, it is determined that the fixing does not proceed so much. It is preferable to implement. Thereby, it is possible to improve both water saving and removability.

Alternatively, for example, the preset condition is a condition based on any of bathroom temperature, humidity, and time.
If the temperature is high, the keratin is dried quickly, and sticking is likely to occur. In addition, when the humidity increases, the growth of mold and the like becomes severe. The temperature and humidity information may be estimated based on time (season) information in addition to using these measurement results. By adopting control corresponding to these, it is possible to suppress the generation of finally unpleasant things such as mold and pink slime in the bathroom 500 for a long period of time.

Alternatively, for example, the preset condition is a condition based on the usage period of the bathroom 500.
By using the washing place for many years, scratches and irregularities are formed on the washing place floor 520, and keratin and pink slime are easily fixed. In addition, there is a growing concern that keratin and pink slime are likely to remain on the floor surface due to deterioration of drainage due to adhesion of dirt, deterioration of coating, and the like. Therefore, it is preferable to employ cleaning control that matches the state of the bathroom 500 that changes over time. If the aging correction is performed according to the period of use of the bathroom 500, the effect of the present invention can be enhanced while having a simple configuration and no inconvenience.

Alternatively, for example, the preset condition is a condition based on the number of bathers.
If the number of bathers increases, the amount of stratum corneum increases and the amount of water used increases, so that the remaining methylobacterium also increases. If cleaning control corresponding to the number of bathers is adopted, the optimum suppression of black mold and pink slime can be realized while maintaining water saving.

Further, the execution condition changing means 30a, according to a preset condition, in at least one of the black mold suppression step S1 and the pink slime suppression step S3, the execution time of the steps S1, S3, the washing water of the steps S1, S3 The total amount of sprinkled water per unit area, the water flow of the washing water in the steps S1 and S2, the temperature of the washing water in the steps S1 and S3, and dichloric acid when the washing water in the steps S1 and S3 contains dichloric acid It is preferable to change at least one of the concentrations.
At the time of exfoliation and replacement with washing water that does not contain methylobacterium, depending on the usage state of the bathroom 500, at least one of the water amount, water force, water temperature, bactericidal concentration changes, the washing strength can be changed, Optimal cleaning for the state can be realized.

In particular, the execution condition changing means 30a changes the total amount of sprinkled water per unit area of the washing water in each of the steps S1 and S3 in both the black mold suppressing step S1 and the pink slime suppressing step S3 in accordance with preset conditions. It is preferable to do so.
For example, as a measure against sticking to the floor due to dryness of keratin and methylobacterium, such remedy is preferable because it can be re-foamed with water. Regarding replacement, it is desirable to increase the certainty of replacement by increasing the amount of sprinkling water. Therefore, by changing the total amount of sprinkling water per unit area of the washing water in each of steps S1 and S3, it is possible to reliably remove the factors causing black mold and pink slime at low cost.

Moreover, the control part 30 of this embodiment further has the manual change means 30b which changes the watering with respect to the washing-room floor 520 in at least one of the black mold suppression process S1 and the pink slime suppression process S3 according to the input conditions by a user (FIG. 3). The manual change means 30b is connected to the operation part 35 (refer FIG. 1).
Even by automatic control based on preset conditions as described above, the washing floor 520 can last for a long time. However, to be able to respond to requests such as individual evaluation values for “clean condition”, variations in use condition (harshness), and wanting to keep “clean condition” even more than usual when visiting customers, etc. If the manual changing means 30b is provided so that the control contents can be manually adjusted according to the input conditions by the user, the user's satisfaction and usability can be further improved.

In addition, the control part 30 is the advance correspondence control which consists of the substitution sprinkling which produces | generates water which does not contain keratin removal, and methylobacterium is sprinkled in advance, and mold | fungi or pink slime which generate | occur | produced on the floor surface of the washroom floor 520 It is preferable to be able to carry out both the post-response control for sterilizing as a post-response.
By removing the cause of mold and pink slime, not only proactive control that lasts the “clean state” of the washroom floor 520 of the bathroom 500, but also conventional reactive control that can also handle mold and pink slime. By having both, the “clean state” of the washing floor 520 of the bathroom 500 can be more reliably maintained for a long period of time, and the amount of time and effort for cleaning can be reduced considerably.

In this case, the control unit 30 is configured to execute the preliminary response control in the first predetermined cycle, and to execute the reactive control in the second predetermined cycle longer than the first cycle. More preferably.
In this way, by adjusting the frequency of each of the prior response control and the reactive response control to be optimized, the “clean state” can be more reliably maintained for a long time while optimizing the running cost. .

In addition, it is preferable that the control unit 30 can freely perform the reactive response control irregularly according to the input conditions by the user.
Even by automatic control based on preset conditions as described above, the washing floor 520 can last for a long time. However, it is difficult to reliably prevent the occurrence of mold under any circumstances. For example, pink slime is generated when mold is generated due to the accumulation of nutrients other than stratum corneum, methylobacterium is scattered, or water that is not replacement water is sprinkled after replacement. If black mold and pink slime are generated, they cannot be removed with water or washing water that does not contain methylobacterium. Therefore, for example, if a manual mode for cleaning with enhanced sterilization is provided, in addition to the long-lasting function of “clean state”, a function to sterilize mold that has occurred can also be implemented, and user satisfaction Is further enhanced.

<Effect of pink slime suppression process>
The cleaning device 100 according to the present embodiment is a cleaning device for a bathroom washing place floor that constitutes a washing place of the bathroom 500 and washes the washing place floor 520 having the drain port 521, and is a washing unit that sprays washing water on the washing place floor 520. The nozzle part 10a which is and the control part 30 which controls the nozzle part 10a are provided. Then, the control unit 30 controls the nozzle unit 10a so that the remaining water containing methylobacterium remaining on the washing floor 520 is replaced with the washing water from which the methylobacterium has been removed. The pink slime suppression process S3 which sprays water is implemented.

  According to the present embodiment, by performing the pink slime suppression step S3 that removes residual water containing methylobacterium remaining on the washing floor 520, bacteria on the washing floor 520, particularly methylobacterium, Can be significantly reduced, and as a result, generation of mold on the washing floor 520 can be significantly suppressed.

  In particular, in the pink slime suppression step S3, the remaining water containing methylobacterium remaining on the washing floor 520 is replaced with washing water not containing methylobacterium, which is generated by removing methylobacterium in tap water. By doing so, methylobacterium on the washing ground floor 520 can be remarkably reduced without using high-concentration immediate-effect sterilizing water. And it does not mean that all nutrients are killed or removed rather than sterilizing the bacteria in the bathroom 500, and it is only necessary to kill a small amount of methylobacterium, so that water is sprayed in the pink slime suppression step S3. The washing water does not need to be a highly concentrated sterilizing water having a high concentration as conventionally considered, and the running cost can be kept low.

  It can be said that this embodiment is not a reactive technique that sterilizes after the occurrence of pink slime, but a preliminary technique that hits the source in advance. With regard to pink slime generated in the bathroom 500, according to the cleaning device 100 of the present embodiment, 99% or more customer satisfaction can be achieved by this suppression.

  The inventor of the present invention has found a causative substance that causes pink slime in the bathroom 500 (discovery). That is, the present inventor has found that the generation factor of pink slime is a trace amount of methylobacterium in tap water, and that pink slime is generated by growing on the washing floor 520. And this identification has made it possible to develop a technology that removes the causative substance before it occurs, rather than killing it. As a cleaning technique that does not require high concentration of sterilizing water or long-term sterilization, the cleaning apparatus 100 of this embodiment has been established.

  In addition to the nozzle portion 10a for discharging tap water as the first wash water and the low-concentration sterilized water as the second wash water, the cleaning means includes tap water in the flow channel upstream of the nozzle portion 10a. It has a low-concentration sterilized water generator 20 including a removal device 20b that removes methylobacterium. The second washing water is water in which methylobacterium is not present in the water before being sprayed on the washing floor 520 by removing methylobacterium.

  In order to kill the methylobacterium in the water sprinkled on the large washroom floor 520, a large amount of sterilized water is required for a reliable attack on the methylobacterium. In addition, when an attack failure occurs, it causes pink slime. Therefore, a removal device is provided in the flow channel upstream of the nozzle portion 10a, and the removal device removes methylobacterium before watering, and the residual water remaining on the washing floor 520 is water free from methylobacterium. By adopting the configuration of replacing with, it is possible to reliably remove methylobacterium. Thereby, generation | occurrence | production of the pink slime by the death defect can be prevented in a shorter time with a smaller amount of water.

  Further, in the bathroom 500 of the present embodiment, the washing floor 520 is formed so as to be inclined toward the drain outlet 521, and the nozzle unit 10 a serving as a cleaning means is installed on one side in the bathroom 500. It is arranged on the counter 530 side, and is arranged so as to be upstream from the drainage port 521 in the drainage flow flowing through the washing ground floor 520 toward the drainage port 521, and the nozzle part 10a as a cleaning means The controller 30 is rotated so as to sprinkle sequentially from the upstream side of the 520 toward the drain outlet 521, and in the pink slime suppression step S3, the control unit 30 is sprinkled first from the nozzle unit 10a and washed. The rotation speed of the nozzle portion 10a is changed so that the cleaning water from the rear reaches the upstream side of the cleaning water flowing through the nozzle.

  Thereby, the water that has landed becomes a drainage flow and flows to the drainage port 521 along the inclination of the washing floor 520, and the water spraying sequentially toward the drainage port 521 by the rotation of the nozzle portion 10a. Together, it becomes easy to drive the washing water that has landed on the washing floor 520 into the drain outlet 521 and to easily replace the entire floor surface of the washing floor 520.

In addition, after the water sprayed on the washing ground reaches the washing floor 520, the washing water flows along the inclination of the washing floor 520 while forming a water film. Since the water film of the washing water flowing through the washing floor 520 spreads toward the drain outlet 521 while spreading, the water film is broken, and a place where the washing water passes and a place where the washing water does not pass are generated. Here, the washing floor 520 that has landed first is changed by changing the rotation speed so that the washing water from the rear reaches the upstream side of the washing water that has been sprayed and flowing through the washing floor 520. The water film is replenished with washing water sprayed later, and the water film is prevented from being broken. As a result, the entire surface of the washing floor 520 can be more reliably replaced with the washing water.
In addition, even if the water film state can be maintained, if the cleaning water later arrives on the downstream side of the previously sprayed cleaning water, water splashes will occur at the time of landing. Thus, water containing methylobacterium scatters, and water containing bacteria scatters in the replaced area even though the water containing bacteria is replaced with washing water. Therefore, the water containing bacteria at the time of landing can be prevented from being scattered by landing on the upstream side of the washing water which has been previously sprayed and formed a water film.

  In addition, it is preferable that at least a part of the cleaning water sprayed from the nozzle portion 10a reaches the bathroom walls 541 to 544 rising upward from the washing floor 520.

  Water containing methylobacterium adheres to the bathroom walls 541 to 544 by the user's bathing action. And when it adheres to the bathroom walls 541-544 for a long time, the pink slime will generate | occur | produce in the said bathroom walls 541-544. Therefore, by allowing at least a part of the washing water to land on the bathroom walls 541 to 544, the bathroom walls 541 to 544 can also be replaced with water containing no methylobacterium. Moreover, since the wash water after flowing through the bathroom walls 541 to 544 also flows at the connection portion between the bathroom walls 541 to 544 and the washing floor 520, reliable replacement can be performed. That is, replacement of the corners between the wall surfaces of the bathroom walls 541 to 544 and the washing floor 520 can be reliably performed.

  Moreover, it is preferable that the nozzle part 10a sprinkles from the wall surface which becomes an upper side in the waste_water | drain flow which flows toward the drain outlet 521. FIG.

  By spraying water from the wall surface on the upper side of the inclination of the washing floor 520, the flow of the cleaning water reflected by the wall surface toward the drain port 521 is formed. Thereby, the water containing methylobacterium present on the washing floor 520 can be efficiently drained to the drain outlet 521 by the flow of the washing water reflected by the wall surface. Thereby, it is possible to prevent water containing methylobacterium from staying below the wall surfaces of the bathroom walls 541 to 544, and it is possible to effectively prevent the generation of pink slime.

  Moreover, it is preferable that the control part 30 rotates the nozzle part 10a which is a washing | cleaning means at a speed slower than the speed of the waste-water flow which flows through the inclination of the washing place floor 520. FIG.

  The washing water reflected by the wall surface proceeds on the washing floor 520 while forming a water film, but as the water advances, the water film spreads, the water film tears, and the washing water passes through The part which does not become will occur. Therefore, by devising the rotation speed, the water film can be prevented from being broken, and the entire washing floor 520 can be more reliably replaced with washing water.

  Furthermore, it is preferable that the washing water that lands on the wall surface near the counter 530 lands at a position above the washing water that lands on the wall surface far from the counter 530.

The water that lands on the washing floor 520 near the nozzle unit 10a serving as the cleaning means has a high velocity component in the direction of water discharge (jetting) by the nozzle unit 10a serving as the cleaning means, and tends to move further toward the wall surface. . Proceeding toward the wall surface, methylobacterium collects on the wall surface side, increasing the possibility of pink slime. Therefore, by landing at a high position on the wall surface, the energy flowing toward the drain port 521 is increased, and the water that flows after landing on the wall surface and the water that has landed first are merged and landed first. It is effective to prevent the water that has been left from heading to the wall surface.
If water is landed at a high position on the wall surface far from the nozzle portion 10a that is the cleaning means, the inclined ridgeline of the floor surface of the washing floor 520 may be passed. That is, backflow may occur and water containing bacteria may reach the area where the replacement is completed with water that does not contain bacteria. Therefore, the wall surface far from the nozzle portion 10a, which is the cleaning means, is landed at a lower position, so that the velocity components of the water landed on the floor surface and the water from the wall surface are canceled out, and so on. It is possible to effectively suppress the occurrence of reverse flow.

  In addition, it is preferable that a storage unit that stores appliances of the bathroom 500 is further provided, and the storage unit is provided above the floor surface of the washing floor 520.

  When the appliances of the bathroom 500 are placed on the floor surface of the washing floor 520, the washing water drainage flow toward the drain port 521 formed by the wall surface may be blocked, and the entire floor surface of the washing floor 520 may be blocked. It may not be possible to replace it. Therefore, by providing a storage unit for storing the appliances of the bathroom 500 above the floor surface of the washroom floor 520, the appliances of the bathroom 500 are prevented from being placed on the floor surface of the washroom floor 520. The entire surface of the washing floor 520 can be replaced without blocking the drainage flow of the washing water.

  In this case, it is more preferable that the control unit 30 performs the pink slime suppression step S3 after performing the concentrated watering step on the storage unit by controlling the nozzle unit 10a which is a cleaning unit.

  When the concentrated watering process for the storage unit is performed after the pink slime suppression process S3 is performed, the washing water at the time of the concentrated watering process passes through the area after the washing floor 520 is replaced with the washing water. There is a risk that the replacement of 520 will eventually end in an insufficient state. Then, after performing the concentrated watering process with respect to a storage part, it can prevent that the area | region where substitution is insufficient occurs by performing pink slime suppression process S3.

Moreover, also regarding the effect of pink slime suppression process S3, it is preferable that the surface of the washroom floor 520 is hydrophilically coated.
In this case, even if methylobacterium adheres to the washing floor 520, the high affinity between the washing floor 520 and water works extremely effectively when removing bacteria. That is, pink slime suppression (substitution with water containing no methylobacterium) can be achieved quickly and sufficiently even with a small amount of washing water and a low washing water flow.

Further, regarding the effect of the pink slime suppressing step S3, it is preferable that the washing floor 520 is formed with a groove 522 extending in a direction that is non-parallel to the direction in which the washing water lands (FIG. 29B). )reference).
In this case, when the sprayed washing water collides with the washing ground floor 520 or flows on the washing ground floor 520, the washing water collides with the groove 522 and a vertical wave (water pulsation) is formed. By disturbing the flow of water in this manner, methylobacterium is easily peeled off from the washing floor 520. Further, even when the washing water spreads and flows on the washing floor 520, the wave prevents the reattachment of methylobacterium to the floor. This makes it possible to reliably remove methylobacterium from the floor even when the water flow and the amount of water to be sprayed are small.

<Variation of low concentration sterilized water generation>
The cleaning device 100 according to the present embodiment is a cleaning device for a bathroom washing place floor that constitutes a washing place of the bathroom 500 and washes the washing place floor 520 having the drain port 521, and is a washing unit that sprays washing water on the washing place floor 520. The nozzle part 10a which is and the control part 30 which controls the nozzle part 10a are provided. Then, the control unit 30 controls the nozzle unit 10a so that the remaining water containing methylobacterium remaining on the washing floor 520 is replaced with the washing water from which the methylobacterium has been removed. The pink slime suppression process S3 which sprays water is implemented.

In addition to the nozzle portion 10a for discharging tap water as the first wash water and the low-concentration sterilized water as the second wash water, the cleaning means includes water in the flow channel upstream of the nozzle portion 10a. It has a low-concentration sterilized water generating unit 20 including a removing device 20b for removing methylobacterium from the water.
More specifically, as shown in FIG. 13, the downstream portion of the low-concentration sterilized water generation unit 20 of the present embodiment is a removal device 20 b and is the upstream portion of the low-concentration sterilized water generation unit 20. By using hypochlorous acid produced in the hypochlorous acid production tank 20a, which is an example of a disinfectant producing apparatus, the methylobacterium in tap water is killed to produce washing water that does not contain methylobacterium. It is supposed to be.
The removing device 20b includes raw water containing hypochlorous acid (an example of a sterilizing agent) generated in a hypochlorous acid generation tank 20a that is an example of a sterilizing agent generating device that is an upstream portion of the low-concentration sterilizing water generating unit 20. By dispersing the concentration, the dispersion unit 20c generates killing water that does not contain methylobacterium by killing methylobacterium in the raw water. Specifically, the dispersion part 20c is formed by partition walls 20d arranged alternately. In addition, in FIG. 13, 20e is an electrode and 20f is an outer case.

  Here, as shown in FIG. 14, the removing device 20b may be configured separately from the hypochlorous acid generation tank 20a. In this case, the removing device 20b is provided between the hypochlorous acid generation tank 20a and the nozzle portion 10a.

  FIG. 15 is a schematic diagram showing a first alternative example of the low-concentration sterilizing water generator. In the case of FIG. 15, instead of adopting the hypochlorous acid generation tank 20a and the removing device 20b, a coil 21 for killing methylobacterium in tap water by applying heat to the tap water flowing in the pipe is provided. Is provided. Even with such a configuration, it is possible to kill the methylobacterium in the raw water and generate wash water that does not contain methylobacterium.

  Furthermore, FIG. 16 is a schematic diagram showing a second alternative example of the low-concentration sterilizing water generator. In the case of FIG. 16, instead of adopting the hypochlorous acid generation tank 20a and the removing device 20b, the methylobacterium in the tap water is killed by irradiating the tap water flowing in the pipe having ultraviolet permeability with ultraviolet rays. An ultraviolet lamp 22 is provided. Even with such a configuration, it is possible to kill the methylobacterium in the raw water and generate wash water that does not contain methylobacterium.

  FIG. 17 is a schematic diagram showing a first modification of the low-concentration sterilizing water generator. In the case of FIG. 17, in addition to the hypochlorous acid production tank 20a of FIG. 3, the coil 21 of FIG. 15 is also provided, and a salt addition device 23 for adding salt to the hypochlorous acid production tank 20a is further added. . According to such a structure, the methylobacterium in raw | natural water can be killed, and the germicidal water which does not contain methylobacterium and has a desired germicidal action can be produced | generated.

  3 and FIG. 15 to FIG. 17, the removal is performed at the stage of bacteria called methylobacterium instead of pink slime, and the methylobacterium is removed from the water before watering. Therefore, it is possible to efficiently generate washing water that does not contain methylobacterium.

  Among these, when the configuration of FIG. 3 is adopted, that is, the removal device 20b disposed in the flow channel upstream of the nozzle portion 10a and the hypothesis disposed in the flow channel upstream of the removal device 20b. When a chloric acid production tank (an example of a disinfectant production device) 20a is used, even if it has immediate effect, it is very inexpensive and surely applied to the floor of the washing place even with extremely low concentration of hypochlorous acid. Pink slime that can be generated can be suppressed.

Note that the removal device 20b of the present embodiment has low sterilization ability in the first range shorter than the entire length of the bathroom 500 even after the washing water after killing methylobacterium is discharged from the nozzle portion 10a. The sterilizing water is generated as cleaning water.
Thus, in the pink slime suppression step S3, sterilization and replacement are performed in the first range of the washing floor 520, and only replacement is performed in the second range that is outside the first range of the washing floor 520. It can be achieved.
By replacing the remaining water with washing water that does not contain methylobacterium, the generation of pink slime can be dramatically improved, and a clean state can be maintained for a long time. However, in the bathroom 500, washing and watering of the bucket are also performed, so it is difficult to maintain a state in which methylobacterium is completely absent. Once pink slime is generated by methylobacterium, it cannot be removed with washing water that does not contain non-bactericidal methylobacterium. Removal using a disinfectant is necessary.
On the other hand, if killed at the stage of bacteria called methylobacterium, the disinfectant is less deteriorated and it is easy to maintain a low concentration of bactericidal properties even after killing, There is no difficulty in producing a bactericidal agent, and if the bactericidal property is low, the influence on the device is small.
Therefore, in the present embodiment, as a preferable aspect, the sterilization is not maintained for the entire washing place floor 520, but water spray that ensures the sterilization safely and easily in the first range can be realized. ing. In this range, in addition to maintaining “clean” by replacing residual water, it is possible to maintain bactericidal properties to remove or generate methylobacterium water that has been sprinkled after replacement. Attacking the pink slime that has fallen. As a result, the “cleanness” can be further maintained, and the labor of cleaning can be greatly reduced.

Moreover, the nozzle part 10a of this embodiment is arrange | positioned at the counter 530 side of the bathroom 500, and the counter 530 and the drain port 521 are contained in the said 1st range.
As described above, in the first range, in addition to maintaining “clean” by replacement, sterilization can be ensured. Therefore, by devising so that the counter 530 and the drain outlet 521 are located within the first range, bactericidal properties can be ensured for the portion where methylobacterium is likely to remain and the occurrence of pink slime is high. That is, the maximum effect can be obtained in the bathroom 500 by a simple arrangement.
FIG. 18 is a schematic view showing an example of such a sterilization region and a replacement region. In this example, approximately half of the counter 530 side (nozzle part 10a side) of the washing floor 520 is a sterilization area, and approximately half on the side far from the counter 530 (and nozzle part 10a) is a replacement area. ing.

In relation to the sterilizing effect, the control unit 30 can spray the cleaning water by controlling the nozzle unit 10a serving as a cleaning unit so that the cleaning water directly reaches the drain port 521 via the air. More preferably,
When the washing water reaches the drain outlet 521 via the washing floor 520, the sterilization concentration of the washing water may be lowered due to contact with organic matter or residual water, and the sterilization effect may not be expected. If you want to avoid this, if you adopt the control to land directly on the drainage port 521 via the air, the replacement of the drainage port 521 with a high risk of pink slime is more reliable with a simple configuration. Can be implemented.
In this case, it is more preferable that the nozzle portion 10 a is disposed on the counter 530 side and close to the drain port 521.
Even if the bactericidal agent passes through the air, the bactericidal concentration is lowered by contact with air, so that the concentration may become low and the effect may not be expected. Therefore, by disposing the nozzle portion 10a near the drain port 521, attenuation of the bactericidal concentration can be suppressed with a simple configuration, that is, it is not necessary to make the bactericidal agent high in concentration, that is, methylobacterium. By the disinfectant after the sterilization, the sterilization of the pink slime with respect to the drain outlet 521 can be realized.

Furthermore, in the pink slime suppression step S3, in the first range, the washing water is sprayed so as to land on the lower wall surfaces of the bathroom walls 541 to 544 that rise from the periphery of the floor surface of the washing floor 520. In addition, it is preferable that water is sprayed such that the height of water landing on the wall surface on the counter 530 side is the highest.
In the vicinity of the counter 530, there is a lot of water splashed by bathers and showers, and the wall surface of the bathroom wall 542 on the counter 530 side has a high risk of pink slime. Therefore, it is possible to more reliably suppress the occurrence of pink slime by allowing replacement water to land on the wall surface on the counter 530 side so that replacement can be performed reliably, and also maintaining the bactericidal action in the high-risk area. , "Clean state" can last a long time.

Further, the nozzle portion 10 a of this embodiment is disposed below the counter 530.
Below the counter 530 is the largest amount of splashed water, and the wall below the counter 530 has the highest risk of pink slime. By arranging the nozzle part 10a below the counter 530, such a risk can be remarkably reduced.

Moreover, the control part 30 of this embodiment can change the said 1st range by controlling the removal apparatus 20b.
Replacement with washing water in the pink slime suppression step S3 can maintain a clean state, but once pink slime is generated due to water being sprayed after replacement, etc., washing without methylobacterium Water spraying cannot be used. Making the entire area of the washing floor 520 the first range in which the bactericidal action is ensured requires a high concentration, which may be wasteful and may cause corrosion of the apparatus. Therefore, it is beneficial to provide a flexible response to various needs of users by making the first range variable, that is, by adjusting the concentration of the sterilizing component of the washing water. Thereby, the problems of the replacement technique can be reduced while achieving practically useful effects such as the reduction of the time and effort of cleaning and the maintenance of the equipment and the reduction of the cleaning time accompanying the decrease in the frequency of high concentration.
Specifically, according to the control unit 30 of the present embodiment, by controlling the removing device 20b, the first range of the washing floor 520 is set to zero and the entire floor surface of the washing floor 520 is set as the second range. In addition, it is possible to implement a mode in which the second range of the washing floor 520 is set to zero and the entire floor surface of the washing floor 520 is set to the first range.

Moreover, the low concentration germicidal water production | generation part 20 (an example of a germicidal agent production | generation apparatus) of this embodiment is hypochlorous acid by decomposing | disassembling the chlorine in tap water with the electrode which is a disinfection component production | generation means as a quick-acting germicide. The removal device 20b generates wash water that does not contain methylobacterium by killing methylobacterium in tap water using the generated hypochlorous acid. It is like that.
In this way, if tap water can be used, it is convenient to use chlorine in tap water to produce hypochlorous acid with a low concentration but immediate effect. Hypochlorous acid has a large amount of air attenuation, so the second range becomes large. However, if a removal device 20b for removing methylobacterium is placed in the vicinity, methylobacterium can be killed. Therefore, it is practically useful because sufficient bactericidal properties can be easily secured.

<Chlorine concentration in low-concentration sterilized water>
In the present embodiment, as described above, hypochlorous acid is generated by electrolyzing tap water whose chlorine concentration is usually 0.1 to 0.3 ppm, and the hypochlorous acid is used to By killing methylobacterium, washing water not containing methylobacterium is generated. Thereby, the low concentration sterilization water production | generation part 20 comes to be able to produce | generate efficiently low concentration sterilization water (an example of the wash water which does not contain methylobacterium) from tap water, without complicating a flow-path structure. ing.
And the chlorine concentration of the wash water in the inside of the removal apparatus 20b, especially the exit area | region is adjusted to 0.4-1.0 ppm. The present inventor says that the cleaning water effective in the pink slime suppression step S3 is cleaning water having a chlorine concentration of 0.4 to 1.0 ppm in the inside of the removing device 20b, particularly in the outlet region. It is based on the knowledge of.

  In order to remove the pink slime once generated on the washing floor 520, it is necessary to use sterilized water having a high chlorine concentration. The concentration required to kill pink slime is 1 ppm or more. However, in this embodiment, the concentration of the chlorine component contained in the raw water (0.1 ppm in regions where the chlorine concentration is low, the average value of the chlorine concentration of tap water in the country is 0.3 ppm) is slightly increased, It is possible to remove methylobacterium, which is a cause of pink slime, only by setting the content to 0.4 to 1.0 ppm.

As described above with reference to FIG. 13, the removal device 20 b of the present embodiment is generated in a hypochlorous acid generation tank 20 a that is an example of a disinfectant generation device that is an upstream portion of the low-concentration sterilization water generation unit 20. By dispersing the concentration of raw water containing hypochlorous acid (an example of a bactericidal agent), a dispersion unit 20c is formed that kills methylobacterium in the raw water and generates wash water that does not contain methylobacterium. doing.
Hypochlorous acid that can be locally generated in the hypochlorous acid generation tank 20a is effectively dispersed in the raw water in the dispersion portion 20c, so that even if it is hypochlorous acid having a low chlorine concentration, it is more reliable. Can be reacted with methylobacterium, and methylobacterium in the raw water can be effectively removed.

In addition, as described above, the removing device 20b of the present embodiment has the sterilizing ability in the first range shorter than the total length of the bathroom 500 even after the cleaning water after killing methylobacterium is discharged from the nozzle portion 10a. As a result, sterilized water such that the water remains is generated as washing water.
Thus, in the pink slime suppression step S3, sterilization and replacement are performed in the first range of the washing floor 520, and only replacement is performed in the second range that is outside the first range of the washing floor 520. It can be achieved.
And in the case of this embodiment, it is preferable that the chlorine concentration of the wash water after landing on the 1st range of the washing floor 520 is 0.4 ppm or more.
By replacing the remaining water with washing water that does not contain methylobacterium, the generation of pink slime can be dramatically improved, and a clean state can be maintained for a long time. However, in the bathroom 500, washing and watering of the bucket are also performed, so it is difficult to maintain a state in which methylobacterium is completely absent. Once pink slime is generated by methylobacterium, it cannot be removed with washing water that does not contain non-bactericidal methylobacterium. Removal using a disinfectant is necessary.
On the other hand, if killed at the stage of bacteria called methylobacterium, the disinfectant is less deteriorated and it is easy to maintain a low concentration of bactericidal properties even after killing, There is no difficulty in producing a bactericidal agent, and if the bactericidal property is low, the influence on the device is small.
Therefore, in the present embodiment, as a preferable aspect, the sterilization is not maintained for the entire washing place floor 520, but water spray that ensures the sterilization safely and easily in the first range can be realized. ing. In this range, in addition to maintaining “clean” by replacing residual water, it is possible to maintain bactericidal properties to remove or generate methylobacterium water that has been sprinkled after replacement. Attacking the pink slime that has fallen. As a result, the “cleanness” can be further maintained, and the labor of cleaning can be greatly reduced.

Here, it is more preferable that the chlorine concentration of the washing water after landing in the first range of the washing floor 520 is 0.8 ppm or more.
As an item with a high customer requirement regarding the bathroom 500, there is a measure against black mold. Among these, after the user's bathing action, there is a particularly high demand for the suppression of black mold generation at the drainage port 521 and the trap, where the keratin that causes black mold tends to gather and be stored. In addition to methylobacterium, black mold can also be removed by setting the chlorine concentration of the washing water that reaches the first range including the counter 530 and the drain port 521 to 0.8 ppm or more.

Further, it is more preferable that the nozzle unit 10a, which is a cleaning means, has a concentration increasing means (for example, a salt addition device 23) for increasing the chlorine concentration in the cleaning water generated by the removing device 20b (see FIG. 17). . In this case, the control part 30 can implement the high concentration removal process in which sterilization and replacement are performed on the entire floor surface of the washing floor 520 by controlling the high concentration means. In this case, it is preferable that the pink slime suppression step S3 and the high concentration removal step are selectively performed.
In bathrooms with a large number of users (a lot of bacteria causing stains) and bathrooms that have not been used for a long period of time, there may be methylobacterium or black mold on the entire washroom floor 520 (black mold). Is floating in the air). Since the wash water sprayed in the pink slime suppression step S3 has a low chlorine concentration, methylobacterium and black mold cannot be sterilized in such a situation. Therefore, in order to cope with such a situation, it is possible to sterilize methylobacterium and black mold in a bathroom with many users or a bathroom that has not been used for a long time by preparing a concentration removal process. Can do.

The following three graphs are further used to explain the above effects.
FIG. 19 is a graph showing the relationship between the black mold and pink slime sterilization time after generation in the bathroom and the amount of water spray for each effective chlorine concentration. According to this, it can be confirmed that the black mold and pink slime sterilization time and the amount of water spray are in a trade-off relationship with each other. It can also be confirmed that the higher the effective chlorine concentration, the shorter the black mold and pink slime sterilization time can be reduced, or the amount of water spray can be reduced.
However, even if the effective chlorine concentration after watering is set to 1 ppm, the amount of watering has not been significantly reduced, that is, a corresponding amount of watering is still required.
As in the present embodiment, it is very effective in terms of water saving to perform the pink slime suppression step S3 using the wash water that has killed the bacteria before watering.
FIG. 20 is a graph showing concentration attenuation after watering for each effective chlorine concentration. As shown in FIG. 20, even if the effective chlorine concentration before sprinkling is 1 ppm, the effective chlorine concentration after landing is greatly reduced due to the concentration attenuation in the sprinkling in the bathroom.
When cleaning water is blown over the entire bathroom 500 (watering distance of about 2 m) and an attempt is made to achieve an effective chlorine concentration of 0.4 ppm after landing in the entire bathroom 500, as shown in FIG. The concentration needs to be about 2 ppm. However, it is not easy to achieve such a high effective chlorine concentration from the effective chlorine component in tap water (a high concentration means is required).
FIG. 21 is a graph showing the killing time of methylobacterium having an effective chlorine concentration. As shown in FIG. 21, if the effective chlorine concentration is 0.4 ppm, the methylobacterium is almost instantaneously killed. That is, it is possible to suppress the occurrence of pink slime by replacing the residual water with the washing water of the concentration by the pretreatment before watering (before attenuation). (Conversely, when the effective chlorine concentration is 0.3 ppm, it can be said that methylobacterium survives.)

<Effect of black mold control process>
The bathroom 500 of the present embodiment includes a washing floor 520 that constitutes a washing area of the bathroom 500, a drain port 521 provided in the washing floor 520 for draining residual water on the washing floor 520, and a surrounding area of the washing floor 520. Bathroom walls 541 to 544 standing up from the water, cleaning means having a nozzle part 10a for spraying cleaning water on the washing floor 520, and a control part 30 for controlling the nozzle part 10a of the cleaning means. And the control part 30 controls the nozzle part 10a, and the black mold which sprinkles washing water so that the keratin which is the cause of generation | occurrence | production of the black mold which remains on the washing place floor 520 is discharged | emitted from the said washing place floor 520 to the drain outlet 521 is carried out. The suppression step S1 is performed.
Further, the washing water sprayed from the nozzle portion 10a in the black mold suppressing step S1 removes the keratin of the washing floor 520, while the removed keratin accumulates around the washing floor 520 and corners of the bathroom walls 541 to 544. It is designed to flow so as not to let it go.
According to the present embodiment, by performing the black mold suppression step S1 for removing the keratin that is the cause of black mold remaining on the washing floor 520, the keratin on the washing floor 520 can be remarkably reduced, and consequently the washing place. Mold generation on the floor 520 can be significantly suppressed.

When carrying out the black mold suppressing step S <b> 1, it is important to remove the keratin remaining on the washing floor 520 and remove it completely to the drain outlet 521. When removing the keratin only by watering, it is important that the keratin reaches the drain outlet 521 without reattaching to the floor surface of the washing floor 520.
Further, even though the keratin can be sprinkled to remove the keratin from the washing floor 520 and the keratin can be removed, the washing water sprayed from the nozzle portion 10a is sprinkled in one direction, so that it is on the extension line in that direction. The corner of the washing floor 520 and the bathroom walls 541 to 544 reaches the corner, and the cut off horny substance collides with the corner and accumulates on the corner, thereby suppressing the occurrence of black mold on the washing floor 520. However, there is a problem in that the occurrence of black mold at the corner cannot be sufficiently suppressed.
According to the cleaning apparatus 100 of the present embodiment, the cleaning water sprayed from the nozzle part 10a in the black mold suppressing step S1 removes the keratin of the washing floor 520, while removing the horny substance around the washing floor 520 and the bathroom wall 541. By flowing so as not to be deposited at the corners of ˜544, generation of black mold not only at the washing floor 520 but also at the corners can be suppressed.

In addition, the control part 30 of this embodiment controls the nozzle part 10a, and in order to prevent the keratin removed from the washing floor 520 from adhering again to the washing floor 520, the reattachment which sprinkles washing water further It is preferable to perform the prevention watering process.
Even if the stratum corneum is peeled off by the sprinkled washing water, the stratum corneum contained in the washing water may reattach to the washing floor 520 in the flow process to the drain port 521. For this reason, in order to prevent the keratin removed from the wash floor 520 from reattaching to the wash basin floor 520, the reattachment prevention sprinkling step of further spraying the wash water ensures more accurate reattachment of the keratin. It is possible to prevent the keratin from the washing floor 520 without fail.

  Further, as shown in FIG. 22, the washing water sprayed from the nozzle portion 10a in the black mold suppressing step S1 of the present embodiment first comes into contact with the keratin remaining on the washing floor 520, and the keratin is washed into the washing floor 520. First flowing water for peeling from the washing floor and second flowing water for transporting the stratum corneum peeled off from the washing floor 520 to the drain outlet 521. FIG. 22 is a schematic diagram illustrating a flow state of the first flowing water (first wave) and the second flowing water (second wave) according to the present embodiment.

Even if the stratum corneum is peeled off by the washing water sprayed, the stratum corneum that has been contained in the washing water is diffused in the flow process leading to the drain port 521 and the water level of the washing water is lowered. In particular, it easily reattaches to the washing floor 520 near the drain outlet 521 or the like. For this reason, the first flowing water for first contacting the stratum corneum remaining on the washing floor 520 to peel off the stratum corneum from the washing floor, and the first fluid for transporting the stratum corneum peeled from the washing floor to the drainage port 521. It is effective to sprinkle (flow) the two flowing water separately.
If only the first fluid for stripping off the stratum corneum is used to prevent the stratum corneum from reattaching to the washing floor due to the drop in water level due to the diffusion of the wash water in the flow process up to the drain outlet 521, a large amount of wash water It is necessary to spray water all at once so as not to cause keratin reattachment due to a drop in water level. If the first flowing water and the second flowing water are separated, the first flowing water is sprinkled to peel off the stratum corneum, and the second flowing water is sprinkled to transport the peeled stratum corneum, resulting in less With the amount of washing water, the keratin is removed from the washing floor 520 and can be reliably discharged to the drain outlet 521.

Further, in the present embodiment, the first fluidized water is configured to flow on a predetermined portion of the washing floor 520, and the second fluidized water is obtained after a lapse of a predetermined time after the first fluidized water reaches. It flows on the predetermined part.
If the first flowing water and the second flowing water are sprinkled at the same time, the purpose of separating and controlling the two sprinklings will not be utilized, but if the time between the two sprinklings is too long, the stratum corneum will dry. Since it becomes easy to reattach, it is not preferable. Therefore, it is effective to moderately control the time between the two water sprays. In the present embodiment, the first flowing water flows on a predetermined portion of the washing floor 520, and the second flowing water moves on the predetermined portion after a predetermined time has elapsed since the first flowing water arrived. Since it is configured to flow, it is possible to reliably prevent keratin re-adhesion with a small amount of washing water while having a simple configuration.

In the present embodiment, the flow rate of the second flowing water toward the drain port 521 is faster than the flow rate of the first flowing water toward the drain port 521 on the predetermined portion. By the time it reaches the port 521, it merges with the first fluidized water.
As the drainage port 521 is approached, the stratum corneum easily reattaches due to the water level decrease due to the diffusion of the first fluidized water. Therefore, rather than controlling the time from the arrival of the first fluid to the arrival of the second fluid at a part of the washing floor 520, the time is shortened as it approaches the drain 521, and further reaches the drain 521. It is effective to catch up and join together. Thereby, the water level fall by spreading | diffusion of 1st flowing water can be compensated effectively, and the reattachment of keratin can be prevented more reliably.

In addition, the nozzle unit 10a of the present embodiment is configured to rotate around an axis center perpendicular to the washing floor 520, and the rotation of the nozzle unit 10a is controlled by the control unit 30, thereby The flow rate of the second flowing water toward the drain port 521 is adjusted to be faster than the flow rate of the first flowing water toward the drain port 521.
That is, by controlling the feed rate of the rotation of the nozzle portion 10a, the flow rate of the first flowing water toward the drain port 521 and / or the flow rate of the second flowing water toward the drain port 521 is relatively easy. Therefore, it is possible to adjust the delay time between them and the merging position between them relatively easily.

Further, in the present embodiment, when the control unit 30 lands the cleaning water on the region far from the nozzle unit 10a, the nozzle unit is compared with the case where the cleaning water lands on the region near the nozzle unit 10a. The rotation of the nozzle portion 10a is controlled such that the rotation speed of 10a is low.
The farther the sprinkling distance is, the lower the water power of the water sprayed is, so the speed of the cleaning water flowing toward the drain outlet 521 is also reduced. In order to compensate for this tendency, the sprinkling control of the first flowing water and the sprinkling control of the second flowing water are performed with simple control by increasing the sprinkling water amount by lowering the rotation speed as the sprinkling distance is longer. Each optimization can be achieved.

<Effect of watering control from both sides of the drain>
The bathroom 500 of the present embodiment includes a washing floor 520 that constitutes a washing area of the bathroom 500, a drain port 521 provided in the washing floor 520 for draining residual water on the washing floor 520, and a surrounding area of the washing floor 520. Bathroom walls 541 to 544 that rise from the side, a cleaning unit that is provided on one side of the bathroom 500 and has a nozzle unit 10a that sprinkles cleaning water on the washing floor 520 while rotating, and a control that controls the nozzle unit 10a of the cleaning unit Part 30. And the control part 30 controls the nozzle part 10a, and the black mold which sprinkles washing water so that the keratin which is the cause of generation | occurrence | production of the black mold which remains on the washing place floor 520 is discharged | emitted from the said washing place floor 520 to the drain outlet 521 is carried out. The suppression step S1 is performed.
In addition, the rotation position of the nozzle portion 10a is controlled in the black mold suppressing step S1, so that the landing position of the washing water sprayed from the nozzle portion 10a moves from one side of the bathroom 500 toward the drain port 521. The washing water landing position sprayed from the nozzle portion 10a moves from the other side of the bathroom 500 toward the drain port 521 by controlling the rotation of the nozzle portion 10a and the washing step (first black mold suppressing step). The second cleaning step (second half black mold suppression step) is to be carried out

  When the black mold control step S1 is performed, it is important to peel off the keratin remaining on the washing floor 520 and reliably transport the keratin to the drain outlet 521 while preventing re-attachment of the keratin washing floor 520 to the floor surface. is there. For this purpose, in the case of simple watering, the keratin may be collected and accumulated at the corner between the peripheral edge of the washroom floor 520 and the bathroom walls 541 to 544 and may not be reliably conveyed to the drain outlet 541. is there.

  According to this embodiment, this problem is surely solved by devising how to wash the cleaning water. Specifically, the nozzle portion 10a that sprinkles cleaning water on the washing floor 520 while rotating is adopted, and the landing position of the cleaning water sprayed from the nozzle portion 10a by controlling the rotation of the nozzle portion 10a. Is moved from one side of the bathroom 500 toward the drain port 521, and the landing position of the washing water sprayed from the nozzle part 10a by controlling the rotation of the nozzle part 10a is different from that of the bathroom 500. By carrying out the second cleaning step that moves from the side toward the drain outlet 521, the stratum corneum can be reliably conveyed to the drain outlet 521.

  In the present embodiment, the first cleaning step (the first half black mold suppressing step) ends in a state where the landing position of the cleaning water sprayed from the nozzle portion 10 a includes the drain port 521. As a result, the exfoliated keratin is reliably discharged to the drain outlet 521, and the exfoliated exfoliate is prevented from depositing on the corners beyond the outlet 521.

  In addition, the region that is not cleaned in the first cleaning step (first half black mold suppressing step) (second cleaning region) is separated and cleaned in the second cleaning step (second black mold suppressing step), whereby the second cleaning region. The keratin is also reliably discharged to the drain outlet 521 in the same manner.

  In this way, by adopting a simple watering form of separating and cleaning up to the drain port 521, the cleaning device 100 of the present embodiment reliably transports to the drain port 521 while stripping off the keratin remaining on the floor surface. Therefore, no keratin is deposited on the corners between the floor surface of the washing floor 520 and the bathroom walls 541 to 544.

In addition, the washing floor 520 of the present embodiment is substantially rectangular in plan view, and a counter 530 is installed on the first side of the washing floor 520, and the nozzle portion 10a is arranged on the counter 530 side, The drainage port 521 is disposed on the third side, which is one of both sides excluding the first side of the washing floor 520 and the second side facing the first side.
Thus, by not arranging the nozzle portion 10a and the drainage port 521 on the same side, accumulation of keratin at the corner portion can be effectively prevented. When the nozzle portion 10a and the drainage port 521 are arranged on the same side, even if the stratum corneum is peeled off and scraped off by cleaning and the cleaning is stopped at the drainage port position, the stratum corneum accumulates at the corner portion of the first side. The risk of becoming higher. In the present embodiment, such a risk is reduced by the arrangement as described above.
In particular, the keratin removal performance is enhanced by arranging the nozzle portion 10a on the counter 530 side (first side). Specifically, when the body is washed, a lot of keratin remains in front of the counter 530, but by arranging the nozzle part 10a on the first side, it is possible to secure a large amount of water or amount of washing water, Stripping can be performed more reliably.
Furthermore, if the drain port 521 is arranged on the second side, the drain port 521 faces the direction of spraying the cleaning water from the nozzle portion 10a. There is a high risk that the stratum corneum accumulates (remains) on the second side due to the water flow of the washing water sprayed. In this case, it becomes difficult to reliably convey the keratin to the drainage port 521. On the other hand, in the present embodiment, the drainage port 521 is arranged on the third side side, so that the keratin is reliably guided to the discharge port 521 without accumulating (remaining) in any corners. it can.

The nozzle portion 10a of the present embodiment is disposed in the middle between the third side and the fourth side facing the third side, but is disposed on the side of the fourth side with respect to the middle. May be.
Wash water containing a large amount of keratin peeled off by the wash water finally arrives around the drain outlet 521. Further, the washing water diffuses in the process of flowing from the upstream, and the water level and flow velocity are reduced downstream. Due to these factors, the keratin easily reattaches to the floor surface around the drain outlet 521. Taking this tendency into consideration, by disposing the nozzle portion 10a on the side of the fourth side including the middle between the third side and the fourth side, the washing water sprayed from the nozzle portion 10a is directed toward the drain outlet. If it is oriented, it is easy to directly wash the periphery of the drainage port 521 where the keratin easily reattaches, and the water level of the washing water (drainage flow) on the washing floor 520 is increased, and the drainage port 521 It is also easy to increase the force for pushing the keratin. Thereby, the reattachment of the keratin around the drain outlet 521 can be effectively suppressed.

Moreover, the 1st washing | cleaning process (first half black mold suppression process) of this embodiment includes the state in which the landing position of a part of washing water sprayed from the nozzle part 10a is the drain outlet 521, and the 2nd washing | cleaning process ( The latter half of the black mold suppressing step) also includes a state in which the landing position of a part of the washing water sprayed from the nozzle portion 10 a is the drain outlet 521.
As described above, the keratin scraped by the washing water easily accumulates around the drain outlet 521, and the risk of black mold is high. In addition, when stopping the spraying of the washing water around the drain port 521, the drainage of the washing water to the drain port 521 is enhanced, but there is a concern that a part of the keratin is reattached around the drain port 521. Therefore, in both the first washing process and the second washing process, a part of the washing water is directly landed on the drain outlet 521, that is, carefully around the drain outlet 521 where the keratin is likely to reattach twice. By washing, the keratin residue can be more effectively suppressed.

Further, in the first cleaning process (first black mold suppressing process) of the present embodiment, the landing position of the cleaning water sprayed from the nozzle portion 10a is the first side, the fourth side, and the second side of the washing floor 520. 2 side and the said 3rd side are moved in order, and in the 2nd washing | cleaning process (second black mold suppression process), the landing position of the washing water sprayed from the nozzle part 10a is the said of the washing floor 520. The first side and the third side are moved in this order. And after the 1st washing process is carried out, the 2nd washing process is carried out.
When the first cleaning step and the second cleaning step are performed step by step at different times, when the cleaning of one cleaning region is finished, a part of the cleaning water containing keratin spreads to the other cleaning region. In other words, there is a risk that the keratin contained in a part of the washing water will be reattached to the other washing region. Furthermore, if the time from the end of one washing process to the start of the other washing process is long, the risk of the keratin reattaching to the washing floor 520 increases due to the drainage of the washing water. Therefore, it is desirable that the time between the two cleaning steps is short. Therefore, as in the present embodiment, the cleaning is performed by each of the first cleaning process and the second cleaning process so that the time from the end of one cleaning process to the start of the other cleaning process is shortened. The risk of keratin reattachment can be reduced by providing a difference in the region in advance and performing a wider range of cleaning first.

  In the present embodiment, a drainage gradient toward the drainage port 521 is set on the floor surface of the washroom floor 520. For this reason, it is preferable to precede the cleaning of the fourth side on the opposite side of the drainage port 521. In this case, the washing water that has landed on the side of the fourth side can vigorously flow toward the drain outlet 521 due to the drainage gradient, and can scatter into the area to be washed only by the second washing step. Since the two cleaning steps are performed later, no problem occurs. On the other hand, the cleaning water sprayed in the second cleaning process can also be scattered into the area cleaned only by the first cleaning process, but the flow rate is slow because of the flow direction that goes up the drainage gradient, and the degree of scattering is remarkable. Low.

In addition, before a 1st washing | cleaning process is implemented, the 1st edge washing | cleaning process by which the landing position of the washing water sprayed from the nozzle part 10a is maintained by the said 1st edge of the washing floor 520 may be implemented. .
There is a lot of keratin remaining around the counter 530, and keratin tends to accumulate particularly on the back of the counter 530. Therefore, by first performing the first side cleaning step for performing the cleaning of the first side, the keratin is driven from the side of the first side to each cleaning region to be cleaned in the first cleaning step and the second cleaning step. As a result, the cleaning performance around the counter 530 can be improved.

Moreover, in this embodiment, the number of the nozzle parts 10a is one, and after performing the 1st washing | cleaning process, the control part 30 stops sprinkling of the washing water from the nozzle part 10a (or may reduce the amount). ), After rotating the nozzle portion 10a to the start position of the second cleaning step, the second cleaning step is performed.
The first cleaning step and the second cleaning step may be performed separately from two nozzle portions provided separately. For example, water can be sprayed at the same time so that the drain port 521 is sandwiched from both sides. However, providing two nozzle parts is expensive. According to the present embodiment, it has been confirmed that even if there is only one nozzle part, it is possible to achieve substantially the same effect as providing two nozzle parts. That is, after the first cleaning process is performed, the spraying of the cleaning water from the nozzle part 10a is stopped (or reduced), the nozzle part 10a is rotated to the start position of the second cleaning process, and then the second cleaning process is performed. By implementing, high exfoliation performance can be realized. The reason why the sprinkling of the washing water is stopped or reduced after the first washing process is to prevent the peeled keratin from being transported to the first side (second washing region) in addition to water saving.

<Specific examples of more suitable watering control conditions>
As a result of various experiments relating to the cleaning apparatus 100 of the present embodiment, in order to more reliably suppress the occurrence of slime in the washing floor 520, the control unit 30 performs the black mold suppression step during the execution of the pink slime suppression step S3. It is preferable that 80 to 100% of tap water remaining on the washing floor 520 after S1 is replaced with low-concentration sterilized water.

  In order to achieve such a substitution rate, according to the knowledge obtained by the present inventors from various experiments, the control unit 30 has 0.4 to 4.0 L per unit time when the black mold suppression step S1 is performed. It is preferable that the tap water is sprinkled on the washing floor 520 from the nozzle portion 10a with a water spray amount of / min, and the control unit 30 performs the per unit time during the pink slime suppression step S3. It is preferable that low-concentration sterilizing water is sprayed on the washing floor 520 from the nozzle portion 10a with a water spray amount of 0.2 to 2.0 L / min. According to the verification by the present inventors, in the intercomparison between the amount of water sprayed per unit time in the black mold suppression step S1 and the amount of water sprayed per unit time in the low-concentration sterilized water in the pink slime suppression step S3, It is possible to make the latter less than the former. When such a balance of watering amount per unit time is adopted, a high replacement rate can be realized.

From another viewpoint (according to another parameter), according to the knowledge obtained by the present inventor, the control unit 30 can perform 0.05 to 0.5 L / per unit area during the black mold suppression step S1. It is preferable that the tap water is sprayed from the nozzle portion 10a onto the washing floor 520 with a water spray amount of cm ² , and the control unit 30 performs per unit area during the pink slime suppression step S3. It is preferable that low-concentration sterilizing water is sprayed onto the washing floor 520 from the nozzle portion 10a with a water spray amount of 0.06 to 0.6 L / cm ² . When such a balance of the amount of water sprayed per unit area is adopted, a high replacement rate can be realized.

  In yet another viewpoint (according to another parameter), according to the knowledge obtained by the present inventors, the control unit 30 has a total water amount of 0.8 to 8.0 L when the black mold suppression step S1 is performed. It is preferable that the tap water is sprinkled on the washing floor 520 from the nozzle portion 10a with the amount of water sprayed, and the control unit 30 performs a total water volume of 1.0 to It is preferable that low-concentration sterilizing water is sprayed from the nozzle portion 10a onto the washing floor 520 with a water spray amount of 10.0L. According to the verification by the present inventors, in the mutual comparison between the total amount of tap water sprayed in the black mold suppression step S1 and the total amount of low concentration sterilized water sprayed in the pink slime suppression step S3, the latter Can be less than the former. When such a balance of the total water amount is adopted, a high replacement rate can be realized.

  In yet another viewpoint (according to another parameter), according to the knowledge obtained by the present inventor, the control unit 30 has a flow velocity of 0.8 to 8.0 m / s when performing the black mold suppression step S1. It is preferable that the tap water is sprinkled from the nozzle part 10a onto the washing floor 520, and the controller 30 has a flow rate of 0.8-8. It is preferable that low-concentration sterilized water is sprinkled on the washing floor 520 from the nozzle portion 10a at m / s. When such a flow rate balance is employed, a high replacement rate can be realized.

  In yet another point of view (according to another parameter), according to the knowledge obtained by the present inventors, the control unit 30 has a particle size of 100 to 500 μm from the nozzle unit 10a when the black mold suppression step S1 is performed. It is preferable that the tap water is sprinkled on the washing floor 520, and the controller 30 has a particle size of 100 to 300 μm from the nozzle section 10a when the pink slime suppression step S3 is performed. It is preferable that low-concentration sterilized water is sprayed on the top. When such a particle size balance is employed, a high substitution rate can be realized.

  An example of the suitable watering conditions described above is summarized in FIG.

  Further, as described above, in order to suppress the occurrence of black mold, it is effective not to leave (remove) the keratin on the washing floor 520. Therefore, the control unit 30 sprays tap water from the nozzle unit 10a onto the washing floor 520 when the black mold suppressing step S1 is performed, and in particular, the keratin on the washing floor 520 together with the tap water is drained 521. It is preferable that it is made to flow. Specifically, for example, if there is information about the remaining amount (or remaining tendency) of keratin for each region on the washing floor 520, it is desirable to use such information when performing the black mold suppression step S1. For example, for areas where there is a lot of keratin remaining (or a high tendency to remain), increase the amount of tap water per unit area, increase the amount of tap water per unit time, Corrections such as increasing the total amount of water or increasing the flow rate of tap water are effective.

  Moreover, in order to more reliably implement the replacement of tap water with low-concentration sterilized water, the control unit 30 performs the black mold suppression step as shown in FIGS. 24 and 25 when the pink slime suppression step S3 is performed. It is preferable that the low-concentration sterilized water is sprayed from the nozzle portion 10a in a wider area than the area where tap water is sprinkled on the washing floor 520 in the implementation of S1. This can be realized by controlling the flow rate at the time of discharging low-concentration sterilizing water to be larger than the flow rate at the time of discharging tap water.

<Pause control before the drain>
According to further examination by the present inventors, in the black mold suppression step S1, the rotation of the nozzle portion 10a is temporarily stopped at a position just before the region where tap water is sprayed from the nozzle portion 10a approaches the drain port 521, Alternatively, it is preferable to reduce the average rotation speed of the nozzle portion 10a in the rotation region including the position to an extremely low speed (for example, about 1 to 3 ° / s).

  When such control is adopted, as shown in FIG. 26, the state where the tap water sprinkled from the nozzle portion 10a becomes a water flow and flows into the drain port 521 can be temporarily maintained. Thereby, the stratum corneum on the washing floor 520 can be effectively washed away to the drain outlet 521.

  FIG. 27 is a schematic diagram showing a time chart in the black mold suppression step S1 adopting the temporary stop control before the drain port.

  As shown in FIG. 27, the control unit 30 of the present embodiment has a drain port 521 in which the tap water is sprinkled from the nozzle unit 10a while the nozzle unit 10a is being rotated from the fourth position P4 to the second position P2. The rotation of the nozzle portion 10a is temporarily stopped by extending the length of the stop time of the electric motor 17 (for example, about 20 seconds) at the near position P5. Thereby, the state in which the tap water sprinkled from the nozzle part 10a becomes a water flow and is flowing into the drain outlet 521 can be maintained temporarily.

  Here, furthermore, the area where tap water is sprinkled from the nozzle portion 10a is a position P5 just before reaching the drain outlet 521, and the tap water has an acute angle θ (for example, 5 to 85 °) in plan view with respect to the second wall 542. If the water reaches the water as it is, the tap water that has landed on the second wall 542 flows as a reflected water flow reflected by the second wall 542 to the drain port 521, and further rotates the nozzle portion 10a. Since the state is temporarily maintained by temporarily stopping (or decelerating), the stratum corneum on the washing floor 520 can be washed away to the drain outlet 521 more effectively.

  Similarly, according to further investigation by the present inventors, in the pink slime suppression step S3, the region where the low-concentration sterilized water is sprayed from the nozzle portion 10a is in a position just before the drain port 521, and the nozzle portion 10a It is preferable to temporarily stop the rotation or to reduce the average rotation speed of the nozzle portion 10a in the rotation region including the position to an extremely low speed.

  When such control is employed, similarly, as shown in FIG. 27, the state where the low-concentration sterilized water sprayed from the nozzle portion 10a is flowing into the drain port 521 as a water flow is temporarily maintained. be able to. Thereby, the tap water on the washing floor 520 can be effectively washed out to the drain outlet 521.

  FIG. 28 is a schematic diagram showing a time chart in the pink slime suppressing process adopting the temporary stop control before the drain outlet.

  As shown in FIG. 28, the control unit 30 of the present embodiment drains a region where low-concentration sterilized water is sprinkled from the nozzle unit 10 a during the rotation of the nozzle unit 10 a from the fourth position P4 to the second position P2. The rotation of the nozzle portion 10a is temporarily stopped by extending the length of the stop time of the electric motor 17 (for example, about 40 seconds) at a position P5 just before the mouth 521. Thereby, the state where the low concentration sterilized water sprayed from the nozzle part 10a becomes a water flow and flows into the drain port 521 can be temporarily maintained.

  Here again, the region where the low-concentration sterilizing water is sprayed from the nozzle portion 10a is at a position P5 in front of the drain port 521, and the low-concentration sterilizing water has an acute angle θ (for example, 5 to 5) in plan view with respect to the second wall 542. 85 °), the low-concentration sterilized water that has landed on the second wall 542 flows into the drain outlet 521 as a reflected water stream reflected by the second wall 542, Furthermore, since the state is temporarily maintained by temporarily stopping (or decelerating) the rotation of the nozzle portion 10a, the tap water on the washing floor 520 can be more effectively washed out to the drain outlet 521.

<Utilization of wall reflection water>
The bathroom 500 of the present embodiment described above includes a washing floor 520 that constitutes a washing place of the bathroom 500, a drain outlet 521 provided in the washing place floor 520 for draining residual water on the washing place floor 520, The bathroom walls 541 to 544 that rise from the periphery of the washing floor, the cleaning means that is provided on one side of the bathroom 500 and has a nozzle portion 10a that sprays cleaning water into the bathroom 500, and the nozzle portion 10a of the cleaning means are controlled. And a control unit 30. And the control part 30 controls the nozzle part 10a, and the black mold which sprinkles washing water so that the keratin which is the cause of generation | occurrence | production of the black mold which remains on the washing place floor 520 is discharged | emitted from the said washing place floor 520 to the drain outlet 521 is carried out. The suppression step S1 is performed.
Further, the washing water sprayed from the nozzle portion 10a in the black mold suppressing step S1 removes the keratin of the washing floor 520, while the removed keratin accumulates around the washing floor 520 and corners of the bathroom walls 541 to 544. It is designed to flow so as not to let it go.
In the present embodiment, at least a part of the cleaning water sprayed from the nozzle portion 10a in the black mold suppressing step S1 also reaches the bathroom walls 541 to 544, and the bathroom walls 541 to 544 The washed water that has landed is reflected in the direction of the drain outlet 521 by collision with the bathroom walls 541 to 544 to generate wall surface reflected water, and the wall surface reflected water is generated around the washing floor 520 and the bathroom. While exfoliating the stratum corneum deposited at the corners of the walls 541 to 544, the exfoliated exfoliation flows so as to guide the drainage port 521.

  According to such an embodiment, by performing the black mold suppression step S1 that removes the keratin that is the cause of black mold remaining on the washing floor 520, the keratin on the washing floor 520 can be significantly reduced, As a result, generation | occurrence | production of the mold | fungi in the washing-room floor 520 can be suppressed notably.

Then, when the black mold suppression step S <b> 1 is performed, it is important to remove the keratin remaining on the washing floor 520 and remove it completely in the drainage port 521. When removing the keratin only by watering, it is important that the keratin reaches the drain outlet 521 without reattaching to the floor surface of the washing floor 520.
Here, it is considered that if a plurality of nozzle portions are set at different angles so as to be directed to the drain outlet 521, it is effective to remove them well without leaving keratin. However, such a measure is not practical because it is necessary to install a plurality of nozzle portions in the bathroom 500 and there is a problem in space, and the water supply piping for each nozzle portion is complicated, resulting in high costs.
Although it is common to set the single nozzle part 10a to the one side of the bathroom 500 like this embodiment, in this case, all the washing water sprayed from the nozzle part 10a is drained 521. It may not be easy to direct the water, and a situation may occur in which keratin is repelled by the wall of the bathroom 500 due to the power of the washing water sprayed, and as a result, black mold may be generated.
Specifically, keratin may be deposited around the washing floor 520 and the corners of the bathroom walls 541 to 544 due to a shower or hot water. When removing the accumulated stratum corneum, if water is sprayed from one side, the force to peel off the stratum corneum from all corners cannot be applied, and at least a part of the sprinkling force presses the stratum corneum to the corners. It will act as follows. Even when water is sprayed on the floor surface where the stratum corneum is to be peeled off, the stratum corneum peeled off from the floor surface by watering may act so as to be positively deposited on the corner.
The present inventor is excellent in that the keratin can be well removed without increasing the cost in the form of spraying the washing water from one side of the washing floor 520, and the keratin is not collected by chasing the wall. The watering form has been found.
Specifically, a part of the cleaning water sprayed from the nozzle portion 10a is sprayed so as to positively collide with the wall. With such a simple configuration, it is possible to change the direction of the washing water that is sprayed from the nozzle portion 10a and is not directed toward the drain outlet 521 in the direction of the drain outlet 521. That is, with the simple contrivance of adopting reflection by the bathroom wall 500, the sprayed washing water flows while flowing in the direction of the drain port 521 to remove the keratin, and the removed keratin is guided to the drain port 521. Is made possible. The wall surface reflected water can peel off the horny material around the washing floor 520 and the corners of the bathroom walls 541 to 544 (by the wall of the washing floor 520) by dropping from the wall, and the keratin deposits at the corners. Can be prevented, and the keratin can be surely flowed to the drain port 521.

  In the present embodiment, a counter 530 is installed on one side of the bathroom 500, and the nozzle portion 10a is arranged on the counter 530 side. In the black mold suppressing step S1, at least a part of the washing water sprayed from the nozzle portion 10a reaches the bathroom wall 542 on the counter 530 side. In the black mold suppressing step S1, the nozzle portion 10a At least a part of the water to be sprayed falls on the bathroom walls 541, 543, and 544 different from the bathroom wall 542 on the counter 530 side, and has landed on the bathroom wall 542 on the counter side. The water surface reflected water generated by the wash water is higher than the wall reflected water generated by the wash water that has landed on the bathroom walls 541, 543, and 544 different from the bathroom wall on the counter side. .

  The part where the keratin remains most is a part on the counter 530 side where a person cleans the body. In addition, in this part, the stratum corneum may be firmly attached to the floor surface by the user stepping on. Therefore, by providing the nozzle portion 10a on the counter 530 side, the washing water flow for washing the washing floor 520 on the counter 530 side can be kept high. As a result, even if the keratin is firmly attached, it can be reliably removed.

  Moreover, in this embodiment, the nozzle part 10a sprinkles washing water on the bathroom walls 541 to 544 and the washing floor 520 while rotating, and the washing water sprayed on the washing floor 520 is preceded. Then, the water collides with the wall surface reflected water generated by the washing water sprayed on the bathroom walls 541 to 544 and directly on the corner of the washing floor 520 and the bathroom walls 541 to 544. Does not work.

  Since the wash water reflected by the walls diffuses due to the reflection, a high degree of washing control is necessary to remove the keratin so as not to leave any keratin left over the entire surface of the washing floor 520. In addition, when washing water is sprinkled from one side in the washing floor 520, the washing water flowing toward the corner facing the one side collides with the bathroom wall (perpendicularly), so that the stratum corneum is pressed against the corner. The effect will occur. Therefore, in addition to removing the stratum corneum with the wall reflection water, the washing floor 520 is washed with the washing water landing on the washing floor 520, and further, the washing water landing on the washing floor 520 is used. In order not to generate the action of pressing the stratum corneum on the corner, the stratum corneum removal is performed by colliding with the wall surface reflected water generated by the washing water that has been previously sprinkled and landed on the bathroom walls 541 to 544, The removal of keratin on the floor can be ensured. Moreover, since it is sufficient to arrange one nozzle portion 10a, the cost can be greatly reduced and the construction is easy.

  Moreover, the nozzle part 10a of this embodiment has a nozzle opening whose vertical direction is longer than the horizontal direction.

For example, when the cleaning water is sprinkled while the nozzle portion 10a rotates, the reflection angles by the bathroom walls 541 to 544 change sequentially. If the washing water sprayed on the wall surface reflected water whose reflection angle changes in this way may block the reflection, it may cause poor removal of the keratin at the corner or force the horn against the corner. May cause it to work. That is, it is preferable to stably perform reflection by the bathroom walls 541 to 544 in any situation.
Therefore, it is effective to narrow and stabilize the watering position by adopting the nozzle openings 11a and 12a whose vertical direction is longer than the horizontal direction. Thereby, the influence of the change of the reflection angle of wall surface reflected water can be suppressed, and the stable exfoliation becomes possible. Moreover, the watering to the bathroom walls 541-544 and the watering to the washing-room floor 520 can be performed simultaneously with one nozzle part 10a. Furthermore, it is one nozzle part 10a also about the control made to collide with the wall surface reflected water produced | generated by the washing water which watered the washing water landing on the washing floor 520 in advance and landed on the bathroom walls 541-544. Therefore, the timing of watering can be stabilized and can be implemented reliably. Therefore, it is possible to more reliably prevent the action of pressing the stratum corneum on the corner.

<Utilization of watering that does not overtake reflected water on the wall>
From another viewpoint, the bathroom 500 of the present embodiment described above is provided on the washing floor 520 that constitutes the washing place of the bathroom 500 and the washing floor 520 in order to drain the remaining water on the washing floor 520. Washing means having a drain outlet 521, bathroom walls 541 to 544 that rise from the periphery of the washroom floor, and a single nozzle portion 10a that is provided on one side of the bathroom 500 and sprays wash water on the washroom floor 520 while rotating. And a control unit 30 that controls the nozzle unit 10a of the cleaning means. When the control unit 30 controls the nozzle unit 10a, the keratin that is the cause of black mold remaining on the washing floor 520 is The black mold suppression step S1 for spraying the cleaning water so as to be discharged from the washing floor 520 to the drain outlet 521 is performed.
And the cleaning water sprayed at the same time from the single nozzle part 10a in black mold suppression process S1 lands on the 1st landing part which lands on the lower part of bathroom walls 541-544, and the floor surface of the washroom floor 520. And a second landing portion for landing.
The first water landing portion is reflected by the lower portions of the bathroom walls 541 to 544 to generate wall surface reflected water, and the wall surface reflected water is changed in the direction of the drain port 521 to be washed in the washing floor. While removing the keratin remaining on the floor surface of 520, the fluid flows on the floor surface of the washing floor 520 toward the drain outlet 521.
Further, when the control unit 30 performs the black mold suppression step S1, the wall surface reflected water generated by the first landing portion of the cleaning water sprayed at a predetermined first time is on the floor surface of the washing floor 520. In the process of flowing, the wall surface reflected water follows the region where the wall surface reflected water flows so that the wall surface reflected water is not overtaken by the second landing portion of the washing water sprayed at a predetermined second time thereafter. In addition, the rotation of the nozzle portion 10a is controlled.

  According to such an embodiment, by performing the black mold suppression step S1 that removes the keratin that is the cause of black mold remaining on the washing floor 520, the keratin on the washing floor 520 can be significantly reduced, As a result, generation | occurrence | production of the mold | fungi in the washing-room floor 520 can be suppressed notably.

Then, when the black mold suppression step S <b> 1 is performed, it is important to remove the keratin remaining on the washing floor 520 and remove it completely in the drainage port 521. When removing the keratin only by watering, it is important that the keratin reaches the drain outlet 521 without reattaching to the floor surface of the washing floor 520.
Here, it is considered that if a plurality of nozzle portions are set at different angles so as to be directed to the drain outlet 521, it is effective to remove them well without leaving keratin. However, such a measure is not practical because it is necessary to install a plurality of nozzle portions in the bathroom 500 and there is a problem in space, and the water supply piping for each nozzle portion is complicated, resulting in high costs.
Although it is common to set the single nozzle part 10a to the one side of the bathroom 500 like this embodiment, in this case, all the washing water sprayed from the nozzle part 10a is drained 521. It may not be easy to direct the water, and a situation may occur in which keratin is repelled by the wall of the bathroom 500 due to the power of the washing water sprayed, and as a result, black mold may be generated.
The present inventor is excellent in that the keratin can be well removed without increasing the cost in the form of spraying the washing water from one side of the washing floor 520, and the keratin is not collected by chasing the wall. The watering form has been found.
Specifically, a part of the cleaning water sprayed from the nozzle portion 10a is sprayed so as to positively collide with the wall. With such a simple configuration, it is possible to change the direction of the washing water that is sprayed from the nozzle portion 10a and is not directed toward the drain outlet 521 in the direction of the drain outlet 521. That is, with the simple contrivance of adopting reflection by the bathroom wall 500, the sprayed washing water flows while flowing in the direction of the drain port 521 to remove the keratin, and the removed keratin is guided to the drain port 521. Is made possible. The wall surface reflected water can peel off the horny material around the washing floor 520 and the corners of the bathroom walls 541 to 544 (by the wall of the washing floor 520) by dropping from the wall, and the keratin deposits at the corners. Can be prevented, and the keratin can be surely flowed to the drain port 521.
Furthermore, the present inventor has found that it is also effective to control the rotation of the nozzle portion 10a, particularly the rotation speed. Since the wall surface reflected water flows through the washing floor 520 first, it can contain the most remaining stratum corneum. By spraying water so as not to overtake this, it is possible to prevent the keratin from which the corners have been removed from returning to the region where the cleaning has been completed or reattaching. By performing further washing water spraying to the washing place floor 520 in such a manner, the removability of the keratin can be enhanced. Thereby, even if it is one nozzle part 10a, the long-lasting "clean state" of the washing-room floor 520 is realizable.

In addition, the control unit 30 of the present embodiment is configured such that the second landing portion of the cleaning water sprayed in the second time after the first time is the first landing portion of the cleaning water sprayed in the first time. Of the nozzle portion 10a so as to compensate for the diffusion and the water level drop that occur in the process in which the wall surface reflected water flows on the floor surface of the washing floor 520 Rotation is controlled.
The washing water sprayed on the washing floor 520 is diffused in the process of flowing through the washing floor 520, and the water level is always lowered. Due to such a decrease in the water level, the keratin from which the corners have been removed may be reattached to the washing floor. Therefore, the second landing part is landed at a later time so as to merge (follow up, follow) without overtaking the wall surface reflected water generated by the first landing part that has landed first. In addition, by controlling the rotation of the nozzle portion 10a, it is possible to improve exfoliation removability. In particular, the reattachment of keratin can be effectively suppressed by suppressing the decrease in the water level accompanying diffusion.

In addition, the control unit 30 of the present embodiment is configured such that the second landing portion of the cleaning water sprayed in the second time after the first time is the first landing portion of the cleaning water sprayed in the first time. The rotation of the nozzle portion 10a is controlled such that the wall surface reflected water generated by the flow is merged without overtaking, and a propulsive force that causes the wall surface reflected water to flow in the direction of the drain port 521 is applied. .
Giving propulsive force means that the speed of the wall reflection water (drainage flow) after the merging is maintained or increased. In this case, it is possible to increase the feed rate to the keratinous drainage port 521 that can be contained in the wall surface reflection water. If the moving speed is low, not only will the exfoliation power of the stratum corneum decrease, but the reattachment of the stratum corneum will also increase. it can.

Moreover, the control part 30 of this embodiment is comprised so that the rotational speed of the nozzle part 10a may be changed in the position determined beforehand.
The washing water changes the reflected force depending on the reflection angle by the bathroom walls 541 to 544. In addition, if the sprinkling distance is long, the sprinkling energy is lowered, the force reflected by the wall is also lowered, and the flow rate of the washing water after landing is lowered. In accordance with such a tendency, by adjusting the rotation speed of the nozzle portion 10a and adjusting the amount of sprinkling water, the keratin removal force and the reattachment prevention performance can be maintained or improved.

Furthermore, the control unit 30 of the present embodiment, when landing the washing water to a region far from the nozzle unit 10a, compared to the case of landing the washing water to a region near the nozzle unit 10a, the nozzle unit 10a. The rotation of the nozzle portion 10a is controlled so that the rotation speed of the nozzle 10a is low.
When the sprinkling distance is long, the sprinkling energy is lowered, the force reflected by the wall is also lowered, and the flow rate of the washing water after landing is reduced. In accordance with such a tendency, by adjusting the rotation speed of the nozzle portion 10a and adjusting the amount of sprinkling water, the keratin removal force and the reattachment prevention performance can be maintained or improved.

<Effect of pulsating flowing water>
The cleaning device 100 according to the present embodiment described above is a cleaning device for a bathroom washing place floor that constitutes a washing place of the bathroom 500 and washes the washing place floor 520 having the drain port 521, and the washing water is placed on the washing place floor 520. Cleaning means having a nozzle part 10a for spraying water and a control part 30 for controlling the nozzle part 10a. And the control part 30 controls the nozzle part 10a, and the black mold which sprinkles washing water so that the keratin which is the cause of generation | occurrence | production of the black mold which remains on the washing place floor 520 is discharged | emitted from the said washing place floor 520 to the drain outlet 521 is carried out. The suppression step S1 is performed.
In the present embodiment, the washing water sprayed on the washing floor 520 is the drain outlet 521 so that the energy for peeling off the keratin adhering to the washing floor 520 is generated by the energy rising in the wave at the black mold suppressing step S1. Until then, it flows while generating continuous waves.

When carrying out the black mold suppressing step S <b> 1, it is important to remove the keratin remaining on the washing floor 520 and remove it completely to the drain outlet 521. When removing the keratin only by watering, it is necessary to take measures such as spraying a large amount of washing water if the keratin is attached to the washing floor 520. However, sprinkling a large amount of cleaning water is disadvantageous in terms of cost, and since it is not possible to enter the bathroom 500 during cleaning, there is also a problem in terms of convenience such that long-term entrance restrictions are required. .
After many years of research, the present inventor has found a technique for exfoliating the keratin attached to the washing floor 520 in a short time without sprinkling a large amount of washing water. At the same time, the present inventors have found a technique that can solve the problem that the stratum corneum is reattached to the washing floor in the process of peeling the stratum corneum and discharging it to the drain outlet 521.
Specifically, in the present embodiment, the cleaning water sprayed on the washing floor 520 flows while generating continuous waves during the process of reaching the drain outlet 521. Due to the generation of the amplitude accompanying the generation of the waves, energy is generated in the upward direction with respect to the floor surface of the washing floor 520. Due to the increased energy, the keratin adhering to the washing floor 520 can be peeled off from the washing floor 520. And once the keratin is peeled off from the washing floor 520, it floats on the water surface or is contained in the water, so that the degree of being affected by the downward energy associated with the wave amplitude is low. That is, for the stratum corneum, the influence of the wave is significantly greater due to the increased energy.
In short, by generating a wave (pulsation), it is possible to exfoliate the skin well and cleanly. In addition, it is particularly effective to continuously generate this wave in the process up to the drain port 521. As a result, the keratin can be uniformly removed on the entire surface of the washing floor 520, and the rising energy can be continuously applied to the peeled keratin, so that the reattachment of the keratin to the washing floor 520 can be more reliably suppressed. .
FIGS. 29A and 29B are schematic views showing how the wave carries the keratin, FIG. 29A is a schematic plan view, and FIG. 29B is a schematic cross-sectional view.

In the present embodiment, the washing water sprayed from the nozzle portion 10a in the black mold suppressing step S1 first comes into contact with the keratin adhering to the washing floor 520, and the first water landing for peeling the keratin from the washing floor 520. Part (becomes first fluidized water: see FIG. 22), and a second landing part (becomes second fluidized water: see FIG. 22) that lands on the passage site of the wash floor 520 of the first landing part. ,have.
And in this embodiment, when the control part 30 implements black mold suppression process S1, in the process in which the 1st water landing part flows the said passage part of the washing ground floor 520, the said 1st water landing part is 2nd landing. The rotation of the nozzle portion 10a is controlled so that the propulsive force in the direction toward the drain port 521 is increased by the water portion.
In the bathroom 500, the sprinkled washing water travels while widely diffusing to the washing floor 520 in the process of moving the washing floor 520 toward the drain outlet 521, so the water level of the washing water decreases. Due to this drop in water level, the keratin comes into contact with the washing floor 520, so that the keratin is easily reattached (see FIG. 30). According to this embodiment, the water level can be raised by the merging. That is, not only the rising energy of the waves but also the effect of increasing the water level can enhance the effect of preventing the reattachment of keratin.
Furthermore, in this embodiment, the rising energy of the wave can be generated reliably. That is, the rotation speed of the nozzle portion 10a so that the second landing portion increases the driving force in the direction of the drain port 521 with respect to the first landing portion when the second landing portion joins the first landing portion. Is controlled so that the second landing portion joins the first landing portion so as to increase the momentum, and the rising energy of the wave of the first landing portion can be reliably generated (see FIG. 31). Thereby, the 1st landing part comes to be able to peel off more keratin, and can remove the keratin on the washing floor more efficiently.

  Furthermore, in this embodiment, the wash water sprayed from the nozzle part 10a in the black mold suppression step S1 is the second passage site of the wash floor 520 of the first landing part after being merged by the second landing part. And a third landing portion for landing on the water. And, when the control unit 30 performs the black mold suppression step S1, in the process in which the first landing portion after being joined by the second landing portion flows through the second passage portion of the wash floor 520, The rotation of the nozzle portion 10a is controlled so that the first landing portion is further joined by the third landing portion and the propulsive force in the direction toward the drain port 521 is further increased (see FIG. 32).

  In this embodiment, wave rising energy can be generated more reliably. That is, when the third landing portion joins the first landing portion after being merged by the second landing portion, the third landing portion is propelled toward the drain port 521 with respect to the first landing portion. By controlling the rotational speed of the nozzle portion 10a to further increase the force, the third landing portion joins the first landing portion so as to increase the momentum, and the wave of the first landing portion is increased. Can be generated more reliably. Thereby, the 1st water landing part merged by the 2nd water landing part and the 3rd water landing part comes to be able to peel off more keratin, and can remove the keratin of the washing floor more efficiently. Furthermore, after that, after the 4th landing part, the rising energy of the wave of the said 1st landing part may be produced more reliably.

Further, as shown in FIG. 29B, the washing floor 520 of the present embodiment has a groove 522 that extends in a direction that is not parallel to the direction in which the first landing portion or the second landing portion lands. Is formed.
As a result, when the sprinkled washing water (first landing portion or second landing portion) collides with the washing floor 520 or flows on the washing floor 520, the washing water also collides with the groove 522. Vertical waves (water pulsations) are formed. As the water flow is disturbed in this way, the keratin is easily peeled off from the washing floor 520. Further, even when the washing water spreads and flows on the washing floor 520, the wave is suppressed from reattaching to the keratinous floor. Thereby, even if the water flow and the amount of water of the sprayed water are small, the keratin can be reliably removed from the floor.

Moreover, when the control part 30 of this embodiment lands a 2nd watering part toward the bathroom wall 541 facing the said nozzle part 10a from the nozzle part 10a, the rotational speed of the nozzle part 10a is low. In this way, the rotation of the nozzle portion 10a is controlled.
When the sprinkling distance is long, the sprinkling energy is reduced, and the flow rate of the washing water after landing is reduced. By adjusting the rotation speed of the nozzle part 10a according to such a tendency, particularly the tendency of the second landing part, it becomes easy to adjust the formation of continuous waves by merging with the first landing part, It is possible to maintain or improve the exfoliating power and anti-redeposition performance.

<Effect of generating large and small waves>
Furthermore, in the present embodiment, the continuous wave includes at least two types of waves: a small wave having a relatively small amplitude and a large wave having a relatively large amplitude.

  According to the present embodiment, the small wave mainly acts as a wave for preventing reattachment, and the large wave acts as a wave that generates a large force to peel off the keratin from the floor surface. For example, by optimizing the location where a large wave is generated, it is possible to aim at a place where the keratin is likely to accumulate. Thereby, the stratum corneum that is difficult to peel off with the rising energy of the small wave can be effectively removed, and the stratum corneum removal performance can be further enhanced.

  Further, in the present embodiment, a small wave (mainly due to the pulsation of the stepping motor) and a large wave (mainly due to the merging of the flowing water) are superimposed and generated on the washing floor 520. In the process up to the drain outlet 521, the sprinkled washing water flows such that the frequency of occurrence of small waves is higher than the frequency of occurrence of large waves.

  In an embodiment in which washing water is flowed in an orderly manner on the floor surface of the wash floor 520, it may be difficult to peel off the stratum corneum, and the peeled stratum corneum easily reattaches to the wash floor 520. Therefore, it is effective for preventing the reattachment of the stratum corneum to generate the small waves as frequently as it can be said to be continuous by increasing the frequency of the small waves more than the frequency of generating the large waves as in this embodiment. On the other hand, on the periphery of the washing floor 520 where the keratin is likely to be deposited, there is a case where only the sprinkling of the washing water has strong adhesion and is difficult to peel off. The stratum corneum can be removed more reliably by making a large wave so as to match such a region.

Further, the small wave and the large wave of the present embodiment are generated by changing the rotational feed speed of the nozzle portion 10a.
Various forms can be adopted as a wave generation method. For example, a method of applying vibration to the floor surface of the washing floor 520 or a method of generating vibration by an air current can be adopted. However, waves can be generated more easily by changing the rotational feed speed of the rotating nozzle portion 10a. In this case, although it is a simple and inexpensive aspect, it is an optimal structure in the bathroom 500, and a more reliable effect can be obtained.

Moreover, in this embodiment, in black mold suppression process S1, the wash water sprayed from the nozzle part 10a at the same time is the 1st water landing part which lands on the lower part of the bathroom walls 541-544, and the washing floor 520. A second landing part that lands on the floor surface, the first landing part is reflected by the lower part of the bathroom walls 541 to 544 to generate wall surface reflected water, The wall surface reflected water is changed in the direction of the drainage port 521 and flows on the floor surface of the washing floor 520 toward the drainage port 521 while removing the keratin remaining on the floor surface of the washing floor 520. ing.
And when the control part 30 implements black mold suppression process S1, the wall surface reflected water produced | generated by the 1st landing part of the washing water sprinkled at predetermined 1st time flows on the floor surface of the washing floor 520. In the process, the wall surface reflected water is joined by the second landing part of the washing water sprinkled at a predetermined second time thereafter, and a propulsive force that moves in the direction of the drain port 521 is added. The rotation of the nozzle portion 10a is controlled so as to follow the region where the wall surface reflected water flows. And the said large wave is generated by the confluence | merging with the 2nd landing part of the wash water sprayed on the said wall surface reflected water and the said predetermined 2nd time.
According to the present embodiment, with the simple idea of adopting reflection by the bathroom walls 541 to 544, the sprayed washing water flows while reliably directing in the direction of the drain port 521 to remove the keratin and drain the removed keratin. It is possible to lead to the mouth 521. The wall surface reflected water can surely flow the keratin to the drain outlet 521 without accumulating keratin on the wall of the washing floor 520.
The stratum corneum easily accumulates at the corners of the wash floor 520 and the bathroom walls 541 to 544, and it is difficult to generate a force to peel off the stratum corneum deposited at the corners by watering. However, since the wall surface reflected water flows so as to peel off the stratum corneum, the stratum corneum can be peeled off even in a region where the stratum corneum is difficult to peel off.
Further, the stratum corneum can be ensured by adding a propulsive force that moves in the direction of the drain port 521 after the wall surface reflected water is joined by the second landing portion of the washing water sprinkled at a predetermined second time thereafter. In addition, it can be transported to the drain outlet 521 and removed, and reattachment of keratin can be prevented.
Furthermore, since a large wave is generated by the merge of the wall surface reflected water and the second landing part of the washing water sprayed at the predetermined second time, the large wave is surely generated at the aimed position. It can be generated, and the stratum corneum can be effectively peeled off even in a region where the stratum corneum is difficult to peel off. The method is also relatively easy because it is sufficient to control the rotation speed of the nozzle portion 10a so that the merging timing is matched.
In the bathroom 500, the sprinkled washing water travels while widely diffusing to the washing floor 520 in the process of moving the washing floor 520 toward the drain outlet 521, so the water level of the washing water decreases. Due to this drop in water level, the keratin comes into contact with the washing floor 520, so that the keratin is easily reattached. According to this embodiment, the water level can be raised by the merging. That is, not only the rising energy of the waves but also the effect of increasing the water level can enhance the effect of preventing the reattachment of keratin.

The rotation of the nozzle portion 10a in the present embodiment is driven by a stepping motor as described above. The small wave is generated by applying a minute speed change to the rotation of the nozzle portion 10a by the speed change of the stepping motor.
In general, it is not easy to control the generation of small waves and large waves by polymerizing them. In particular, since a large wave needs timing adjustment, detailed design or control is necessary. However, it is preferable that the wavelet be generated with a simple configuration because it is sufficient that the wavelet is generated substantially continuously to prevent the reattachment of the keratin.
In the present embodiment, since the stepping motor is a driving system that sends one step at a time, the structure causes a speed change automatically (mechanically) every time one step is sent. In other words, it is an intermittent feeding method. And even if the speed change of the stepping motor is so small that it cannot be visually recognized, if it is enlarged by the rotation of the nozzle portion 10a, it is greatly enlarged at the landing position and can appear as a larger speed change. And by the said speed change, the change of the sprinkling amount in a water landing position is produced, and a small wave can be generated.
That is, if a stepping motor is used as in the present embodiment, a small wave can be created simply by automatically feeding the nozzle portion 10a. In other words, a practically useful small wave can be easily created by a mechanical configuration in which a stepping motor is employed and minute vibrations are expanded by the nozzle portion 10a.

In addition, as described above with reference to FIG. 26 and the like, it is preferable that the nozzle portion 10a of the present embodiment once again stops rotating at a predetermined position and then rotates again.
There may be a region where the nozzle portion 10a must be rotated very slowly in order to optimize the merging timing in all regions with respect to the wall surface reflected water flowing in the direction of the drain outlet 521 through the washing floor 520. This is because in the region where the reflection power is weak, the flow velocity at which the wall surface reflected water flows is slow. It is not easy to control the rotation of the nozzle part 10a very slowly, that is, if water is sprayed in the process of slowly moving, it becomes easy to merge at the wrong timing, and the keratin may even be returned to the upstream side. . Therefore, timing optimization control can be performed more easily and accurately by temporarily stopping the feeding.

Further, the control unit 30 can perform both the temporary stop control of the nozzle unit 10a at the predetermined position and the variable speed control for each predetermined region of the nozzle unit 10a. More preferably.
With respect to the speed control of the rotation of the nozzle unit 10a, by executing both the stop control and the variable speed control, it is possible to control the preferable merging timing with a higher degree of freedom.

Further, the control unit 30 of the present embodiment, when landing the cleaning water to the region far from the nozzle unit 10a, compared to the case of landing the cleaning water to the region near the nozzle unit 10a, the nozzle unit 10a. The rotation of the nozzle portion 10a is controlled so that the rotation speed of the nozzle 10a is low (see FIGS. 8 to 11, 27, and 28).
The predetermined position is preferably a position where the washing water landing position corresponds to the corner portion of the washing floor 520 (see FIG. 26).
In the region where the sprinkling distance is long, the flow rate of the water reflected from the wall surface is low because the flow rate of the washing water is low. Furthermore, at the corners, which are the four corners of the wash floor 520, the wash water can be reflected by two walls. And at the corners of the four corners, the keratin easily accumulates, and it is important that the keratin is discharged well from the corners, and it is avoided that the second irrigation part of the washing water sprinkled with delay comes back. Should.
In such a corner portion, it is preferable to stop the rotation of the nozzle portion 10a and encourage the wall surface reflected water to slowly flow toward the drain port 521, and the wall surface reflected water sufficiently flows in the direction of the drain port 521. In order to avoid returning the washing water to the corner portion, it is effective to join the second landing portion of the washing water sprinkled later.
If the rotation of the nozzle part 10a is stopped and the merging is delayed, there is a possibility that the keratin reattachment due to the lowering of the water level may increase, but since the water sprinkled in the corner part is expected, a sufficient amount of water can be expected. It has been confirmed that re-adhesion due to lowering of the water level does not occur even if the time is delayed.

Moreover, the drainage gradient toward the drain outlet 521 is set in the washing floor 520 of the present embodiment. The predetermined position is a position corresponding to the corner portion of the washing floor 520 where the washing water landing position is downstream of the drainage gradient, and the nozzle portion 10a has the washing water landing position for draining. There may be a case where it is preferable to temporarily stop or decelerate for a time shorter than the stop time at the predetermined position at a position corresponding to another corner portion of the washing floor 520 upstream of the gradient. is there.
The keratin collected from the upstream side tends to accumulate in the corner portion on the downstream side, for example, on the side where the drain port 521 is set. In addition, the corner portion is a region where the drainage gradient ends, and after the cleaning water collides with the wall and its velocity becomes zero, the corner portion further moves laterally and proceeds to the drainage port 521. Accordingly, since the washing water is scattered due to the collision with the wall and the flow is slow, the merging timing of the second landing portion of the washing water sprinkled with delay is sufficient for the wall surface reflected water to settle down and to the drain outlet 521 sufficiently It is preferable that it is after starting to move sideways. Therefore, it is preferable that the rotation of the nozzle portion 10a is temporarily stopped at a position corresponding to such a corner portion. In this case, the wash water second landing portion sprayed with a delay can cleanly remove the wash water scattered including the keratin.
In addition, the upstream corner portion is also temporarily stopped or decelerated for a time shorter than the stop time at the position corresponding to the downstream corner portion in order to improve the keratin removal performance. preferable.

<Measures against dirt on the nozzle>
In the above embodiment, when starting the black mold suppression step S1, the nozzle portion 10a can land tap water substantially vertically toward the second wall 542 below the counter 530 (initial position P1). ), The rotation of the nozzle portion 10a is started. For this reason, even if the nozzle portion 10a is contaminated at the start of the black mold suppressing step, the influence of temporary disturbance in the tap water discharge direction that may be caused by the contamination is substantially vertical toward the second wall 542. However, since the dirt is immediately blown away by the tap water discharge and disappears, it does not appear when the water is subsequently discharged to the center of the washing floor 520. Accordingly, even if the nozzle portion is temporarily soiled, the water discharge control in the black mold suppressing step S1 to the center portion of the washing floor 520 can be performed as designed.

  According to the present inventor, the initial position at which the black mold suppression step S1 is started is not limited to a position where tap water can be landed substantially vertically toward the second wall 542, and the nozzle of the second wall 542 If it is a position where tap water can be landed within a range of ± 10 ° centering on a portion closest to the portion 10a, the above-described effect can be obtained.

  Moreover, when the counter 530 is provided adjacent to a part of bathroom wall like this embodiment, it is preferable that the nozzle part 10a is arrange | positioned under the counter 530. FIG. In this case, since the nozzle portion 10a is hidden by the counter 530, the nozzle portion 10a is prevented from being contaminated by the residue of soap or shampoo used for washing the human body. At this time, the shortest distance between the 2nd wall 542 and the nozzle part 10a is 80 cm or less, for example.

  Moreover, it is preferable that the nozzle part 10a is arrange | positioned in the position lower than the height of a bathtub wall like this embodiment. In this case, if the water discharge direction of the tap water or low-concentration sterilization water from the nozzle part 10a is designed to be equal to or less than the horizontal direction, the tap water or low-concentration sterilization water discharged from the nozzle part 10a exceeds the bathtub wall. It never gets inside.

<Relationship with door>
The bathroom 500 generally further includes an entrance and a door that opens and closes the entrance. When the black mold control step S1 is performed, the control unit 30 causes the tap water to land on the area in front of the door on the washing floor 520 from the nozzle unit 10a, and does not spray the door. When the pink slime suppressing step S3 is performed, it is preferable that the low concentration sterilizing water is landed from the nozzle portion 10a to the area in front of the door on the washing floor 520, and the door is not sprinkled.

  In this case, even if the black mold suppression step S1 and the pink slime suppression step S3 are performed while the door is open, it is possible to prevent tap water and low-concentration sterilized water from splashing outside the bathroom 500.

DESCRIPTION OF SYMBOLS 10a Nozzle part 10x Rotating shaft 11a 1st nozzle opening 12a 2nd nozzle opening 13 Water storage part 14a 1st water storage part 14b 2nd water storage part 17 Motor 20 Low concentration sterilized water production | generation part 30 Control part (Watering control part, rotation control part) )
30a execution condition change means 30b manual change means 35 operation part 51 water supply pipe 52 hot water supply pipe 53a, 53b strainer 54a first electromagnetic valve 54b second electromagnetic valve 55 pressure regulating valve 56 check valve 57 vacuum breaker 100 cleaning device 500 bathroom 510 bath 520 Washing floor 521 Drain outlet 530 Counter 531 Top plate 532 Lower cover 541-544 1st wall-4th wall

Claims (13)

A bathroom washing room floor cleaning device that constitutes a bathroom washing area and that also washes a washing floor having a drain.
Cleaning means for spraying cleaning water on the washing floor;
A control unit for controlling the cleaning means;
With
The control unit controls the cleaning unit,
A black mold suppressing step of sprinkling the washing water so that keratin that is the cause of black mold remaining on the washing floor is discharged from the washing floor to the drain outlet;
A pink slime suppression step of sprinkling the washing water so that the remaining water containing methylobacterium remaining on the washing floor is replaced with washing water from which methylobacterium has been removed;
A bathroom washing room floor cleaning device, characterized in that: In the black mold suppression step, the first washing water is sprinkled to remove the keratin from the washing floor,
In the pink slime suppression step, the second washing water is sprinkled to remove methylobacterium from the washing floor,
2. The bathroom washer floor cleaning apparatus according to claim 1, wherein the black mold suppressing step and the pink slime suppressing step are each performed in a manner separated from each other in time. The cleaning means includes
A nozzle portion for discharging the first washing water and the second washing water;
A removal device that is provided in a flow path upstream of the nozzle portion and removes methylobacterium from water;
Have
The first wash water is water;
3. The second wash water is water in which methylobacterium is not present in the water before being sprayed on the washing floor by removing methylobacterium. The bathroom washing floor floor cleaning device as described in 1. The black mold suppression step is always performed first,
The bathroom washing room floor cleaning apparatus according to claim 3, wherein the pink slime suppressing step is always performed later. 5. The control unit according to claim 4, wherein the controller is configured to perform a leaving step in which water sprinkling is prohibited after the pink slime suppressing step by controlling the cleaning means. Bathroom washing room floor cleaning equipment. The second washing water is water containing hypochlorous acid, or water containing hypochlorous acid and having a reduced sterilization concentration,
The cleaning means has a hypochlorous acid production tank,
The removal device is provided in the hypochlorous acid generation tank or between the hypochlorous acid generation tank and the nozzle part,
By passing the tap water through the removal device, methylobacterium is removed by the sterilizing action of hypochlorous acid generated by the hypochlorous acid generation tank to become the second wash water,
The hypochlorous acid production tank is adapted to produce hypochlorous acid by electrolyzing tap water,
6. The bathroom washing area according to claim 5, wherein energization of the hypochlorous acid generation tank is continuously continued at least while the second washing water is discharged from the nozzle portion. Floor cleaning equipment. A washroom floor that constitutes a bathroom washroom and has a drain;
The bathroom washer floor cleaning device according to claim 6;
A counter installed on one side of the bathroom;
A bathroom wall provided at the periphery of the bathroom;
A bathroom with
The cleaning means is disposed on the counter side,
The cleaning means causes the first cleaning water and / or the second cleaning water to land on the bathroom wall upstream of the drain outlet in the drain flow flowing through the washing floor toward the drain outlet. The bathroom is characterized by being. The bathroom according to claim 7, wherein a surface of the washing floor is hydrophilic-coated. 9. The groove that extends in a direction that is not parallel to a direction in which the first cleaning water and / or the second cleaning water lands is formed in the washing floor. Bathroom. The control unit performs a sprinkling waiting step of waiting for the first wash water to be drained to the drain outlet after the black mold suppression step and before the pink slime suppression step by controlling the cleaning means. The bathroom washing place floor cleaning apparatus according to claim 5, wherein The said control part prohibits implementation of the said black mold suppression process and / or the said pink slime suppression process on the conditions set beforehand, or it is made to carry out an emergency stop. The bathroom washing floor floor cleaning device as described in 1. The control unit is configured to prohibit or urgently stop the execution of the black mold suppression step and / or the pink slime suppression step based on a signal indicating that there is a user in the bathroom. The bathroom washing place floor cleaning apparatus according to claim 11. Based on a signal indicating that the bathroom door is open, the control unit prohibits the execution of the black mold suppression step and / or the pink slime suppression step, or makes an emergency stop. The bathroom washer floor cleaning apparatus according to claim 11.