JP7159575B2 - Cleaning equipment for bathroom floor - Google Patents

Description

The present invention relates to a bathroom wash floor dedicated device for cleaning a bathroom wash floor.

Dirt on the floor of the bathroom floor includes scum from soaps and shampoos used to wash the human body, and dirt generated from the human body (proteins, carbohydrates, oils and fats, salts, etc.).

The applicant of the present application has already developed and obtained a patent for a cleaning device for removing such stains and suppressing the growth of mold on the bathroom floor (Patent Document 1).

Japanese Patent No. 4035662

The inventor of the present invention has been researching for many years about a technology capable of suppressing the growth of mold on the floor of the washing area, which is the most requested by customers in the bathroom.

Among the techniques disclosed in Patent Literature 1, the applicant of the present application actually commercialized the technique of Ag sterilizing the drain of a bathroom (trade name: Numerima Wash). However, while a high sterilization effect can be expected for the drain port, Ag sterilization water has the characteristic of being lagging on the floor of the washing place, so it cannot exhibit a sufficient effect. was not enough. Specifically, Ag sterilized water has a low immediate effect, so there is a problem that it flows from the floor of the washing place to the drain before it attacks the mold.

If a large amount of Ag-sterilized water is continuously poured onto the floor of the washing area, the mold can be attacked for a long period of time, so an effect can be expected. However, in that case, the problem of water saving remains.

In order to enhance the effect against mold bacteria on the floor of the washing place, which is highly demanded by customers, the inventor of the present invention has repeatedly studied the application of the technology using hypochlorous acid. Since the technology using hypochlorous acid can be expected to be effective immediately, it was expected to be effective in terms of attacking fungi, but it was necessary to solve the following problems.

First, the bathroom has a certain amount of space and the water discharge distance is somewhat long. That is, in order to expect a sufficient attack effect against fungi after watering, it was considered necessary to use hypochlorous acid at a fairly high concentration in consideration of the attenuation.

However, the amount of chlorine contained in tap water is limited, and it has not been easy to increase the concentration. A method such as addition of chlorine was also considered, but it was not practical due to various troubles associated with the process of adding chlorine.

Furthermore, even if a high concentration can be achieved, if water is sprinkled (sprayed) with a reduced flow rate, a problem may arise in that corrosion countermeasures for facilities and equipment will be required as the cleaning time is prolonged.

After many years of research, the inventor of the present invention has found that even when water containing hypochlorous acid is used for washing the bathroom floor, it is suitable without the need to adopt a high-concentration technology such as adding chlorine. We have found a practically excellent cleaning technology that can greatly reduce the growth of mold on the bathroom floor.

In other words, the inventor of the present invention is not a bactericidal action that kills black mold and pink slime after they have occurred as in the past, but a substance that causes the growth of black mold and pink slime that can occur in the bathroom. It has been found that it is effective to suppress or kill the We have discovered a practically excellent bathroom cleaning technology based on preventive measures to remove the source of the problem, rather than post-event measures.

Specifically, black mold countermeasures are implemented by removing keratin, which is the cause of black mold, from the floor surface, and the floor of the washing area is washed and replaced with methylobacterium-free water that does not contain methylobacterium, which is the cause of pink slime. It has been found that it is effective to suppress pink slime by

Note that FIG. 34 is a diagram showing experimental results for explaining that residual keratin is the main factor in the generation of black mold. This was obtained by adding mold spores (Cladosporium) at 2500 cfu/ml to a mixture of each soil component at 500 ppm and culturing for 7 days in an environment of 25° C. and 80% Rh. As shown in FIG. 34, the results of culturing the horny layer confirmed the remarkable occurrence of black mold.

The present invention has been made based on the above findings. SUMMARY OF THE INVENTION An object of the present invention is to provide a bathroom washing space floor cleaning apparatus capable of suppressing the growth of mold on the bathroom washing space floor.

The present invention is a bathroom washing floor cleaning apparatus for washing a washing space floor having a drain port, wherein the first washing water consisting of tap water or low-concentration sterilized water and methylobacterium are removed from the washing space floor. washing means for sprinkling the second washing water, a rotating part for rotating the washing means, a control part for controlling the washing means and the rotating part, and an operation part operable by a user , wherein The control unit includes a black mold suppressing step of discharging the keratin remaining on the floor of the washing place into the drain port by sprinkling the first washing water, and a pink mold of replacing the residual water remaining on the floor of the washing place with the second washing water. and a slime suppression step, wherein the control of the cleaning means causes keratin that causes black mold remaining on the floor of the washing place to flow from the floor of the washing place to the drain port. A black mold suppressing step of sprinkling the washing water so as to be discharged, and the residual water containing Methylobacterium remaining on the floor of the washing place is replaced with washing water from which Methylobacterium has been removed. , and a pink slime suppression step of sprinkling the washing water, and the control unit performs a first mode of spouting water at a predetermined flow rate in order to change the water spout flow rate in the black mold suppression step. and a second mode in which a water discharge flow rate is smaller than that in the first mode and a third mode in which a water discharge flow rate is larger than that in the first mode, which can be selected according to a signal operated by the operation section . This is a bathroom washing place floor cleaning device characterized by:

In the black mold control process, it is important to remove the keratin remaining on the floor of the washing place and discharge it without leaving it in the drain port. When the keratin is removed only by sprinkling water, it is important to soften the keratin and peel it off, and it is desirable to increase the amount and pressure of water.

On the other hand, in the pink slime control process in which washing water containing no methylobacterium is prepared and sprinkled to replace residual water, if the removal of methylobacterium is insufficient, the water-sprinkled methylobacterium causes pink slime. Therefore, high removal performance is required. In addition, if the washing water used in the pink slime suppression process does not have bactericidal properties, or if the concentration of the bactericidal component is low, the generated pink slime cannot be removed. high precision is required for the removal performance of

Thus, there are different requirements in the two steps of the present invention. For example, when the pink slime suppression step is performed with the amount and force of water sprayed in the black mold suppression step, Methylobacterium can be removed with high accuracy before watering. In order to do so, a removing means with very high performance is required.

In the present invention, based on the peculiar knowledge of the present inventor that there is no requirement to soften or peel off the keratin in the pink slime suppression process, the requirements for both processes are satisfied with a simple configuration that optimally changes the watering method. We have found a practically excellent embodiment that satisfies a high level and enhances the performance of removing methylobacterium.

In addition to the discovery of an embodiment excellent in practical use, it was found that the adherence of keratin to the floor of the washing space varies depending on the number of users, the season, and the like. Since the degree of adhesion of keratin to the floor of the washing place changes, the black mold inhibiting process is configured so that the first mode, second mode, and third mode with different water discharge flow rates can be selected. With this configuration, when the degree of adhesion of keratin is high, the third mode is executed, and when the degree of adhesion of keratin is low, the first mode is executed. Even keratin can be discharged into the drain.

In the present invention, the control unit comprises the first mode that continues for a preset predetermined time, the second mode that continues for a time shorter than the predetermined time in the first mode, and the mode that is longer than the predetermined time in the first mode. It is preferable to change the water discharge flow rate by selecting the third mode that continues for a long time.

By changing the duration of the first mode, the second mode, and the third mode in this way to change the water discharge flow rate, it becomes unnecessary to change the water pressure, and the structure does not become complicated. , the water discharge flow rate can be changed.

In the present invention, it is preferable that the control section is configured to change durations of the first mode, the second mode, and the third mode by changing the number of rotations of the rotating section.

By changing the number of revolutions in the first mode, the second mode, and the third mode in this way to change the water discharge flow rate, it becomes unnecessary to change the water pressure, and the structure becomes complicated. It is possible to change the water discharge flow rate without

In the present invention, it is preferable that the controller does not change the water discharge flow rate in the pink slime suppression step even when any one of the first mode, the second mode, and the third mode is set. .

With this configuration, since keratin is removed from the floor of the washing place in the black mold suppression step, in the pink slime suppression step, the washing water remaining on the floor of the washing place is washed water from which methylobacterium has been removed. should be replaced with Therefore, even if any one of the first mode, the second mode, and the third mode is set in the black mold suppression step, by not changing the water discharge flow rate in the pink slime suppression step, wasteful sprinkling of water can be avoided. can be prevented.

Based on the peculiar knowledge of the present inventor that the pink slime suppression process does not require softening or peeling off the keratin, the black mold suppression process and the pink slime suppression process can be performed with a simple configuration that optimally changes the watering method. Both requirements can be satisfied at a high level.

Advantageous Effects of Invention According to the present invention, it is possible to provide a bathroom washing space floor cleaning apparatus capable of suppressing the growth of mold on the bathroom washing space floor.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic perspective view showing an example of a bathroom in which a washing device for a bathroom washing place according to one embodiment of the present invention is installed; FIG. 2 is a schematic perspective view enlarging the vicinity of the counter in FIG. 1; 1 is a schematic diagram illustrating a washing device for a bathroom washing place according to an embodiment of the present invention; FIG. 2A and 2B are a front view and a cross-sectional view illustrating the details of the configuration of the nozzle portion of FIG. 1; FIG. 3A and 3B are a perspective view, a side view, and a plan view illustrating the details of the configuration of the nozzle portion of FIG. 1; FIG. It is a schematic diagram showing a control flow of the washing apparatus for bathroom washing place according to one embodiment of the present invention. FIG. 3 is a schematic diagram showing an example of the rotation operation of the nozzle section of FIG. 1; FIG. 10 is a plan view showing the floor of the washing place corresponding to the black mold suppression step; It is the schematic which shows the time chart in a black mold suppression process. FIG. 10 is a plan view showing a washing floor corresponding to a pink slime suppression step; It is the schematic which shows the time chart in a pink slime suppression process. FIG. 10 is a plan view of the floor of the washing place showing experimental results about the effect of the pink slime suppression process. 4 is a table showing the amount of water sprinkled in each step when executing a black mold suppression step and a pink slime suppression step; FIG. 14(a) is a schematic perspective view and FIG. 14 ( b) is a schematic cross-sectional view; Fig. 15(a) is a schematic perspective view and Fig. 15(b) is a schematic cross-sectional view showing another configuration example of a low-concentration sterilized water generating unit and a removing device; FIG. 4 is a view equivalent to FIG. 3, showing a first alternative example of a low-concentration sterilized water generator; FIG. 4 is a view equivalent to FIG. 3, showing a second alternative example of the low-concentration sterilized water generator; FIG. 4 is a view equivalent to FIG. 3, showing a first modified example of a low-concentration sterilized water generator; It is a top view explaining the partial sterilization effect. 4 is a graph showing the relationship between black mold and pink slime sterilization time after generation in a bathroom and water spray amount for each available chlorine concentration. It is a graph which shows the density|concentration attenuation|damping after watering for every effective chlorine density|concentration. Fig. 10 is a graph showing the death time of Methylobacterium for each available chlorine concentration. 23(a) is a schematic plan view and FIG. 23(b). ) to FIG. 23(d) are schematic sectional views. It is a chart which put together an example of suitable watering conditions. FIG. 4 is a schematic diagram showing an example of a watering range of tap water and low-concentration sterilizing water. It is a schematic diagram showing an example of a spray range of low-concentration sterilization water. It is a schematic diagram showing an example of temporary stop control in front of the drain port. FIG. 4 is a schematic diagram showing a time chart in the black mold suppressing process employing temporary stop control in front of the drain port; It is a schematic diagram showing a time chart in the pink slime suppression process that employs the temporary stop control in front of the drain outlet. FIG. 30(a) is a schematic plan view and FIG. 30(b) is a schematic cross-sectional view showing how waves carry keratin. FIG. 10 is a schematic diagram showing how reattachment of keratin is likely to occur due to a decrease in water level. FIG. 4 is a schematic diagram showing how the first water landing portion and the second water landing portion merge. Furthermore, it is a schematic diagram which shows the state of the confluence|merging of the 3rd landing part. FIG. 10 is a diagram showing experimental results for explaining that residual keratin is the main factor in the occurrence of black mold.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same reference numerals are given to the same components in each drawing as much as possible, and duplicate descriptions are omitted. In addition, this invention is not limited by the embodiment shown below.

<Example of bathroom>
First, an example of a bathroom in which the washing device 100 for a bathroom washing place according to one 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 washing device 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 sides of a rectangular parallelepiped. 544 is provided. 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 wall on the back side in FIG. 1) to the first wall 541 (the wall on the front side in FIG. 1) is referred to as "forward", and the opposite direction. shall be referred to as "rear". 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, both the bathtub 510 and the floor 520 of the washing area extend in the front-rear direction and are arranged in the horizontal direction. The washroom floor 520 is in contact with part of the first wall 541 and part of the second wall 542 in addition to the third wall 543 .

A drain port 521 is provided in the floor 520 of the washing place. The drain port 521 is provided near the center of the washing space floor 520 in the front-rear direction and at the edge of the washing space floor 520 in the lateral direction on the bathtub 510 side. The washing space floor 520 is provided with a gradual (for example, about 1 to 5°) drainage gradient (inclination) toward the drainage port 521 . In addition, the surface of the washing space 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 floor 520 of the washing area 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 has a top plate 531 and a lower cover 532 and is spaced upward from the washing space floor 520 . The counter 530 has a substantially rectangular shape elongated 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 floor 520 in the horizontal direction.

<Water channel of washing device for bathroom wash area>
Next, FIG. 3 is a schematic diagram illustrating a washing apparatus for a bathroom washing place according to one embodiment of the present invention, showing a state where the counter 530 is viewed from the side. As shown in FIG. 3 , a bathroom washing place cleaning device 100 (hereinafter, for convenience of explanation, abbreviated as “cleaning device 100”) according to the present embodiment includes a nozzle portion 10a protruding below a counter 530 and a counter 530 and a control unit 30 (serving as both a watering control unit and a rotation control unit as described later) housed in the inside.

As also shown in FIG. 2, the nozzle part 10a is arranged below the counter 530 at a position spaced apart from the floor 520 of the washing space. The nozzle portion 10a of the present embodiment is installed near the center of the counter 530 in the horizontal direction. That is, the nozzle part 10a is installed near the center of the floor 520 in the horizontal direction.

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 to the washing device 100 from the water supply pipe 51 .

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

One flow path on the downstream side of the first strainer 53a supplies 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 portion 10a by opening the first solenoid valve 54a.

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

The first solenoid valve 54a and the second solenoid valve 54b are adapted to open and close the tap water channel, respectively.

The pressure regulating valve 55 controls the pressure of the supplied tap water. As a result, the flow rate of tap water supplied to the low-concentration sterilizing water generator 20 (an example of a sterilizing agent generator), which will be described 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, instead of the pressure regulating valve 55, or in addition to the pressure regulating valve 55, the second solenoid valve 54b may be used to adjust the flow rate of tap water.)

The low-concentration sterilized water generator 20 is an electrolytic chamber (electrolytic bath) having an anode and a cathode. The low-concentration sterilizing water generator 20 applies a voltage between the anode and the cathode to electrolyze tap water flowing between the electrodes to generate low-concentration hypochlorous acid. ing. Since tap water contains chloride ions, hypochlorous acid is produced by electrolyzing the chloride ions.

Then, the downstream part of the low-concentration sterilized water generating unit 20 of the present embodiment is a removing device 20b, and the hypochlorous acid generation tank 20a (sterilant generation An example of the apparatus) is used to kill Methylobacterium in tap water using the hypochlorous acid generated, thereby generating Methylobacterium-free wash water. The effective chlorine concentration of the wash water in the outlet area of the low-concentration sterilizing water generator 20 is 0.4 to 1.0 ppm (the effective chlorine concentration of tap water is usually 0.1 to 0.3 ppm). As a result, the low-concentration sterilizing water generator 20 generates low-concentration sterilizing water (an example of washing water containing no methylobacterium) from tap water without complicating the flow path configuration. .

The low-concentration sterilizing water may be water containing metal ions (eg, 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 pH increases near the cathode. That is, alkaline water is produced in the vicinity of the cathode. On the other hand, alkali (OH ⁻ ) is consumed at the anode, and pH drops in the vicinity of the anode. That is, acid water is produced in the vicinity of the anode. By changing the flow rate in the low-concentration sterilized water generator 20, the concentrations of the components contained in the low-concentration sterilized water can be controlled. However, the low-concentration sterilized water generator 20 is not limited to the electrolytic chamber.

At least a part of the strainers 53a and 53b, the solenoid valves 54a and 54b, the pressure regulating valve 55, the vacuum breaker 57, the check valve 56, the low-concentration sterilized water generating unit 20 and the control unit 30 is outside the counter 530 and the bathroom 500. It can also be provided outside the For example, it is possible to provide the control unit 30 outside the bathroom 500, as indicated by the dashed line in FIG.

The first solenoid valve 54a, the second solenoid valve 54b, the pressure regulating valve 55, and the low-concentration sterilized water generator 20 are appropriately controlled by a controller 30 as a water spray controller. As a result, it is possible to independently control the spraying of tap water (an example of water) from the nozzle portion 10a and the spraying of low-concentration sterilizing water from the nozzle portion 10a.

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 . This controls the flow rate of the tap water supplied to the downstream side. Also, the low-concentration sterilized water generator 20 switches ON/OFF of the electrolytic chamber based on a signal from the controller 30 . In this way, the control unit 30 controls the concentration of various constituents in the low-concentration sterilized water, the instantaneous flow rate (flow rate per unit time) of the spouted cleansing water (tap water or low-concentration sterilized water), and the spouted cleansing water. of total water, can be controlled.

<Details of the nozzle part of the washing device for the bathroom>
In this embodiment, the position and orientation of the nozzle part 10a can be varied so as to change the area on the washing place floor 520 on which washing water (tap water or low-concentration sterilizing water) is sprinkled. Specifically, the nozzle portion 10 a is rotationally driven by an electric motor 17 . The electric motor 17 is, for example, a stepping motor.

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

FIG. 4(a) is a front view illustrating the details of the configuration of the nozzle portion of the present embodiment, and FIG. 4(b) is a cross-sectional view taken along the line AA of FIG. 4(a). 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 and .

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

However, the water reservoir and the nozzle opening may be shared by both tap water and low-concentration sterilizing water. When such a configuration is adopted, the configuration of the nozzle portion 10a is simplified, but it is not possible to simultaneously spray tap water and low-concentration sterilizing water.

FIG. 5(a) is a perspective view showing how low-concentration sterilizing water is sprayed as washing water from the second nozzle opening 12a, and FIG. 5(b) is tap water as washing water from the first nozzle opening 11a. is a perspective view showing how water is discharged.

5(c) and 5(d) are side views of the states shown in FIGS. 5(a) and 5(b), respectively, viewed along the X direction in the drawing. In this manner, the washing water is spouted from the first nozzle opening 11a and the second nozzle opening 12a in a fan-like or triangular shape extending in the Z-direction perpendicular to the X-direction.

FIGS. 5(e) and 5(f) are plan views of the states shown in FIGS. 5(a) and 5(b), respectively, viewed along the Z direction. The spread of the jetted cleansing water when viewed along the Z direction is narrower than the spread of the jetted cleansing water when viewed along the X direction. For example, each of the first nozzle opening 11a and the second nozzle opening 12a jets cleansing water in a line when viewed along the Z direction. The spread of the sprayed cleansing water can be adjusted by the shapes of the first nozzle opening 11a and the second nozzle opening 12a.

Further, the nozzle portion 10a has an axis 10x extending in the Z direction. In this example, the nozzle portion 10a is arranged such that the axis 10x is substantially parallel to the vertical direction (vertical direction). The nozzle portion 10a can receive the driving force of the electric motor 17 and rotate around the axis 10x. Since the nozzle portion 10a spouts cleansing water in a direction intersecting with the axis 10x, the area from which cleansing water is spouted can be changed by rotating the nozzle portion 10a.

In this specification, the "spouting direction" refers to the direction in which cleansing water is spouted when viewed along the axis 10x. That is, in this example, the "spouting direction" is the direction in which cleansing water is spouted when viewed from above. When the cleaning water is sprayed in a plurality of directions when viewed from above, the center of the plurality of directions can be defined as the "spraying direction". Alternatively, when the wash water is spouted in a fan-like or triangular shape around the nozzle openings 11a and 12a when viewed from above, the direction that roughly bisects the fan-like or triangular range is the "spouting direction." ” can be used.

<Action of this embodiment>
Next, an operation example (function) of the cleaning apparatus 100 of this embodiment having the above configuration will be described. FIG. 6 is a schematic diagram showing the control flow of the cleaning device 100 of this embodiment.

The control unit 30 of the cleaning device 100 of the present embodiment serves as a water spray control unit to spray tap water (an example of water) from the nozzle unit 10a onto the floor 520 of the washing place, thereby washing the keratin on the floor 520 of the washing place with tap water. A black mold suppressing step S1 of flushing the water into the drain port 521 together is carried out. Here, the control unit 30 of the present embodiment, as a rotation control unit, controls the electric motor 17 when the black mold suppressing step S1 is performed, and continuously rotates the nozzle while the nozzle unit 10a is rotating. Tap water is sprinkled on the floor 520 of the washing place from the part 10a.

Then, the control unit 30 of the present embodiment, as a watering control unit, sprays low-concentration sterilization, which is an example of washing water not containing methylobacterium, onto the bathroom floor 520 from the nozzle unit 10a after the black mold suppression step S1. By sprinkling water, the tap water on the floor of the washing place 520 is allowed to flow to the drain port 521, thereby performing the pink slime suppression step S3 of replacing the tap water on the floor of the washing place 520 with low-concentration sterilized water. (The low-concentration sterilizing water in this embodiment is only an example of washing water aiming for zero methylobacterium, but if it has a sterilizing effect, a secondary effect described later with reference to FIG. 19 can be obtained. be able to). Here, the control unit 30 of the present embodiment, as a rotation control unit, controls the electric motor 17 to continuously rotate the nozzle unit 10a even when the pink slime suppression step S3 is performed. Low-concentration sterilizing water is sprinkled on the washing place floor 520 from the nozzle part 10a.

Here, FIG. 7 is a schematic diagram showing an example of the rotation operation of the nozzle portion 10a of this embodiment. In each arrow in FIG. 7, when the nozzle section 10 rotates in the direction indicated by the dashed line, the nozzle section 10 does not spout cleansing water (tap water or low-concentration sterilizing water). Conversely, when the nozzle section 10 rotates in the direction indicated by the solid line, it means that the nozzle section 10 spouts cleansing water (tap water or low-concentration sterilizing water).

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

As will be described later, in this embodiment, the nozzle portion 10a is moved to such an initial position P1 after the pink slime suppression step S3 is completed. However, for some reason, the nozzle portion 10a may further rotate after that. Therefore, first, the nozzle portion 10a is moved to such an initial position P1 as necessary (origin finding step A01). ). During the origin search step A01, tap water is not started to be spouted.

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

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. Here, the average rotation speed from the initial position P1 to the fourth position P4 is made higher than the average rotation speed from the fourth position P4 to the second position P2.

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

As shown in FIG. 9, the control unit 30 of the present embodiment, as a rotation control unit, performs control such that the electric motor 17 alternately repeats the rotating state and the stopped state (see FIG. 30). waves (pulsations) of flowing water are formed as will be described later). The controller 30 changes the average rotational speed of the nozzle part 10a by changing the length of time of the stopped state. As shown in FIG. 9, by increasing the length of time in the stopped state from the fourth position P4 to the second position P2 and from the first position P1 to the fourth position P4, the nozzle The average rotational speed of the portion 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 to be described later), "1" in the graph indicated as "rotation of the nozzle section" indicates that the nozzle section 10a rotates clockwise (forward rotation operation). "0" indicates that the nozzle portion 10a has stopped rotating, and "-1" indicates that the nozzle portion 10a is rotating in the counterclockwise direction (reverse rotation operation).

After that, the nozzle part 10a continues forward rotation in the clockwise direction (second forward rotation) from the second position P2 (the position where tap water can land toward the drain port 521) to the initial position P1. Action A03). However, during this period, the first electromagnetic valve 54a is closed (ON), tap water is not spouted, and the rotational speed of the nozzle portion 10a is also made high.

Then, when the nozzle portion 10a reaches the initial position P1, the reverse rotation operation in the counterclockwise direction 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 spouted, and the second half of the black mold suppressing step S1 is performed.

After that, the nozzle part 10a continues the counterclockwise reverse rotation operation (second reverse rotation operation A05). During this period, the first electromagnetic valve 54a is closed (ON), tap water is not spouted, and the rotation speed of the nozzle portion 10a is also made high (water stopping step S2).

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

Furthermore, according to the black mold suppressing 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, the tap water spout is designed to continuously land on the area on the downstream side from the area on the upstream side of the drainage gradient. As a result, the keratin on the floor 520 of the washing space can be more effectively flushed to the drain port 521 together with the tap water.

Next, the nozzle part 10a is directed from the initial position P1 (the first position where the low-concentration sterilized water can land on one side of the drain port 521) toward the drain port 521. forward rotation operation in the clockwise direction (replacement first forward rotation operation A06) until reaching a position (second position P2) where low-concentration sterilizing water can be landed. During this time, the first electromagnetic valve 54a is returned to the closed state (OFF), the second electromagnetic valve 54b is opened (ON), low-concentration sterilized water is discharged, and the first half of the pink slime suppression step S3 is performed. be 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. In (the first half of) the pink slime suppression step S3, similarly to (the first half of) the black mold suppression step S1, the average rotation speed from the initial position P1 to the fourth position P4 is reduced to the average rotation speed from the fourth position P4 to the second position P2. Higher than average rotation speed.

FIG. 10 is a schematic plan view showing the area of the washing space floor 520 where the pink slime suppression step S3 is performed according to the control flow of this embodiment, and FIG. 11 is a time chart in the pink slime suppression step S3. 1 is a schematic diagram showing the .

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

Further, in the present embodiment, the average rotation speed when the black mold suppression step S1 shown in FIG. 9 is performed differs from the average rotation speed when the pink slime suppression step S3 shown in FIG. 11 is performed. That is, the optimum 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 during the pink slime suppression step S3 is lower than the average rotation speed during the black mold suppression step S1. Therefore, the pink slime suppression step S3 is carried out more slowly than the black mold suppression step S1 (FIGS. 8 and 10 show the rotation time of the nozzle part 10a for each region of the washing place floor 520). Along with this, for example, the low-concentration sterilizing water sprinkling area (water discharge distance) in the pink slime suppression step S3 is set wider (longer) than the tap water sprinkling area (water discharge distance) in the black mold suppression step S1. becomes easier. In this case, the tap water sprinkled on the bathroom floor 520 can be more reliably replaced with the low-concentration sterilized water. Such an example is described below with reference to FIGS. 25 and 26. FIG.

After that, the nozzle part 10a continues forward rotation in the clockwise direction (replacement first 2 Forward rotation operation A07). However, during this time, the second electromagnetic valve 54b is closed (ON), the low-concentration sterilizing water is not spouted, and the nozzle portion 10a rotates at a high speed.

Then, when the nozzle portion 10a reaches the initial position P1, the reverse rotation operation in the counterclockwise direction 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), low-concentration sterilizing water is spouted, and the second half of the pink slime suppression step S3 is performed. .

After that, the nozzle part 10a of the present embodiment is temporarily stopped at the second position P2 (the position where the low-concentration sterilizing water can land toward the drain port 521), and the tap water of the drain port 521 is concentrated. Alternatively, low-concentration sterilized water may be substituted. The pause time is, for example, 50 seconds.

After that, the nozzle part 10a continues the reverse rotation operation in the counterclockwise direction from the second position P2 (the position where the low-concentration sterilizing water can land toward the drain port 521) to the initial position P1 (second 2 Reverse rotation operation A09). During this period, the second solenoid valve 54b is closed (ON), tap water is not spouted, and the rotational speed of the nozzle portion 10a is also increased (water stop step S4).

According to the pink slime suppression step S3 according to the control flow as described above, low-concentration sterilizing water is continuously sprinkled from the nozzle portion 10a onto the floor 520 of the washing place while the nozzle portion 10a is rotating. The concentrated sterilizing water turns into a water flow that is urged with the rotation of the nozzle part 10a, and can effectively wash away the tap water on the floor 520 of the washing place.

Furthermore, according to the pink slime suppression step S3 according to 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 is performed. Not performed during A07. That is, the spouted low-concentration sterilizing water continuously lands on the area on the upstream side of the drainage gradient and the area on the downstream side. As a result, the tap water on the floor of the washing space 520 is allowed to flow through the drain port 521 more effectively, and the tap water on the floor of the washing space 520 can be more effectively replaced with the low-concentration sterilized water.

In FIG. 12, the region of the washing space floor 520 where only the black mold suppression step S1 is performed and the region of the washing space floor 520 where the pink slime suppression step S3 is performed after the black mold suppression step S1 are repeated for one month after the bather bathes. It is the result of an actual experiment that was carried out. In the area of the floor 520 where only the black mold suppression step S1 was performed, the remaining amount of keratin was almost zero, and although black mold was not observed, pink slime was observed. On the other hand, in the area of the washing place 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, no black mold was observed, and no pink slime was observed. .

FIG. 13 is a table showing the amount of water sprinkled in each step when the black mold suppression step S1 and the pink slime suppression step S3 of this embodiment are performed. The black mold suppression step S1 has a plurality of modes, a first mode in which a predetermined amount of water is sprinkled, a second mode in which the amount of water is less than that in the first mode, and a and a third mode in which the amount of water to be sprinkled is greater than the amount of water to be sprinkled. These multiple modes can be selected and set by an operation unit (not shown) operated by the user when starting washing. The control unit 30 receives a signal operated by this operation unit (not shown), and the control unit 30 controls the motor 17 and the first electromagnetic valve 54a.

In order to change the amount of water sprayed in the first mode, the second mode, and the third mode, the control unit 30 controls to change the amount of water sprayed by changing the time for maintaining the open state of the first electromagnetic valve 54a. do. For example, the open state maintenance time of the first solenoid valve 54a in the second mode is set shorter than the open state maintenance time of the first solenoid valve 54a in the first mode, and the open state maintenance time of the first solenoid valve 54a in the first mode is shortened. By lengthening the open state maintenance time of the first solenoid valve 54a in the third mode, the total amount of water sprayed in the black mold suppressing step S1 is changed.

In addition, the control unit 30 controls to change the number of rotations of the nozzle unit 10a in order to change the amount of sprayed water among the first mode, the second mode, and the third mode. For example, the control unit 30 controls the number of rotations of the nozzle section 10a to make two rotations in the first mode, controls the number of rotations of the nozzle section 10a to make one rotation in the second mode, and controls the number of rotations of the nozzle section 10a to make one rotation in the third mode. Now, by controlling the number of rotations of the nozzle part 10a to rotate three times, the total amount of water sprayed in the black mold suppressing step S1 is changed. When changing the number of rotations to change the spray amount, the rotation speed of the nozzle part 10a in the first mode, the second mode, and the third mode shall be the same.

The control unit 30 is configured to change the amount of water sprayed in each mode in the black mold suppression step S1. Even so, the total amount of water sprayed in the pink slime suppression step S3 is not changed, and control is performed so that water is sprayed at a constant amount.

As described above, according to the present embodiment, the amount of methylobacterium is reduced after the black mold suppression step S1 of removing keratin on the washing place floor 520 by sprinkling tap water (an example of water). By performing the pink slime suppression step S3 of replacing the tap water on the floor of the washing place 520 with the low-concentration sterilized water by sprinkling low-concentration sterilized water, the amount of methylobacterium remaining on the floor of the washing place 520 can be significantly reduced. can be reduced to As a result, it is possible to effectively suppress the occurrence of slime on the floor 520 of the washing space.

Further, according to the present embodiment, as shown in FIG. 9, the average rotation speed of the nozzle part 10a is reduced while rotating from the fourth position P4 to the second position P2, and the dispersion of tap water per unit area is reduced. Water volume is increased. This is because the area of the washing space floor 520 where tap water is sprinkled (area relatively far from the nozzle portion 10a) while rotating from the fourth position P4 to the second position P2 is shifted from the first position P1 to the fourth position P4. Compared to the area of the washing place floor 520 (the area relatively close to the nozzle part 10a) where tap water is sprinkled while rotating up to , it corresponds to the fact that organic matter such as dirt generated from the human body tends to remain. It is. In this way, for areas where organic matter, especially keratin, tends to remain (or has a large amount of residual), the amount of water sprinkled per unit area is increased, the amount of water sprinkled per unit time is increased, or the total amount of water is increased. is increased, the occurrence of black mold on the floor of the washing space 520 can be more effectively suppressed.

Then, according to the present embodiment, as shown in FIG. 11, while rotating from the fourth position P4 to the second position P2, the average rotational speed of the nozzle part 10a is reduced, and the low-concentration sterilized water per unit area watering amount is increased. This is because the amount of tap water sprayed per unit area while rotating from the fourth position P4 to the second position P2 is the same as the amount of tap water sprayed while rotating from the first position P1 to the fourth position P4. This corresponds to the amount of water sprinkled per unit area. In this way, for areas where the amount of tap water sprinkled is large, the amount of low-concentration sterilizing water sprinkled per unit area can be increased, the amount of low-concentration sterilizing water sprinkled per unit time can be increased, or the low-concentration sterilizing water can be By increasing the total amount of water, it is possible to more effectively suppress the occurrence of slime on the floor 520 of the washing place.

In addition, the control unit 30 of the present embodiment controls the rotation speed of the nozzle unit 10a when performing the black mold suppression step S1 and/or when performing the pink slime suppression step S3. The time for sprinkling tap water or low-concentration sterilizing water on the washing place floor 520 can be changed. As a result, the black mold suppression step S1 and/or the pink slime suppression step S3 can be performed under fine control conditions for each region of the floor 520 of the washing space. In addition, the fact that the cleaning device 100 of the present embodiment has such a function of changing the watering time allows the desired watering amount to be achieved when the water supply pressure of tap water is low (the water supply amount per unit time is small). It is effective in realizing

<Effects of this embodiment>
As described above, the washing apparatus 100 of the present embodiment is a bathroom floor washing apparatus that constitutes the washing area of the bathroom 500 and cleans the washing area floor 520 having the drain port 521. Washing water is supplied onto the washing area floor 520. A nozzle portion 10a, which is a washing means for spraying water, and a control portion 30 for controlling the nozzle portion 10a are provided. Then, the control unit 30 controls the nozzle unit 10a to spray washing water so that the keratin that causes black mold remaining on the floor 520 of the washing area is discharged from the floor 520 of the washing area to the drain port 521. Suppressing step S1, and pink slime suppressing step S3 in which washing water is sprayed so that residual water containing methylobacterium remaining on the washing place floor 520 is replaced with washing water from which methylobacterium has been removed. implement.

According to the cleaning apparatus 100 of the present embodiment, the black mold suppressing step S1 of removing keratin that causes black mold remaining on the floor 520 of the washing place and the residual water containing methylobacterium remaining on the floor 520 of the washing place is removed. By performing the pink slime suppression step S3, it is possible to significantly reduce keratin and methylobacterium on the floor of the washing space 520, and furthermore, it is possible to significantly suppress the generation of mold on the floor of the washing space 520. .

In particular, in the pink slime suppression step S3, the residual water containing methylobacterium remaining on the floor of the washing area 520 is replaced with low-concentration sterilized water from which methylobacterium has been removed, resulting in a high-concentration immediate effect. Methylobacterium on the washing area floor 520 can be significantly reduced without the use of certain sterile water. Then, it is not necessary to sterilize the bacteria in the bathroom 500, nor to kill or remove all the nutrient sources. The low-concentration sterilizing water does not need to be high-concentration, fast-acting sterilizing water, which was conventionally considered, and running costs can be kept low.

It can be said that the cleaning apparatus 100 of the present embodiment is not a post-incident technology for sterilizing mold or pink slime after they are generated, but a proactive technology for hitting the sources of the mold or pink slime before they occur. The types of mold that occur in the bathroom 500 are black mold and pink slime. According to the cleaning device 100 of the present embodiment, by suppressing these molds, customer satisfaction of 99% or more can be achieved.

The inventor of the present invention has identified (discovered) the causative substances that cause black mold and pink slime in the bathroom 500 . That is, the inventors of the present invention found that the cause of black mold is keratin (see FIG. 34), and that the cause of pink slime is a minute amount of methylobacterium in tap water, which proliferates on the floor of the washing area. Found out that pink slime occurs. The identification of these factors has made it possible to develop a technique for removing the causative substances of mold and pink slime before they occur, rather than destroying them after they occur. Then, the present embodiment was established as a cleaning technique that does not require high-concentration sterilizing water or long-term sterilization.

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

As a result, the first washing water is sprayed in the black mold suppressing step S1 for washing so as to peel off the keratin from the floor surface, and the second washing water is sprayed to replace the first washing water in the pink slime suppressing step S3. , can be performed independently. For example, while the former water force and water volume are necessary to some extent, the latter water force and water volume are not so necessary. As for the latter, it is necessary to use filters and sterilizers to remove or kill Methylobacterium. can.

In addition, when the control unit 30 focuses on adhesion of keratin in the step of removing keratin in the black mold suppression step S1, it has been found that adhesion of keratin to the floor 520 of the washing space varies depending on the number of users and the season. . Therefore, even when the degree of adhesion of keratin to the washing place floor 520 changes, the first mode, the second mode and the third mode in which the total amount of water sprayed in the black mold suppression step S1 is different in order to discharge the keratin to the drain port 521. It is configured so that the mode can be selected and executed. As a result, even when the degree of adhesion of the keratin to the washing floor 520 changes, the keratin can be discharged to the drain port.

Further, when changing the total amount of water sprayed in the first mode, the second mode, and the third mode, the control unit 30 changes the operations of the first solenoid valve 54a and the motor 17 for control. The control unit 30 changes the water spray amount by changing the open state maintenance time of the first solenoid valve 54a. This eliminates the need to adjust the water supply pressure of the supplied water or the degree of opening of the first solenoid valve 54a, making it possible to change the water spray amount with simple control. Similarly, when changing the amount of sprayed water, it is possible to change the amount of sprayed water with simple control by changing the number of rotations of the nozzle portion 10a.

Further, in the present embodiment, in addition to the nozzle portion 10a for discharging tap water as the first washing water and low-concentration sterilizing water as the second washing water, a flow upstream of the nozzle portion 10a is provided as the washing means. A low-concentration sterilized water generator 20 is provided in the channel as a removal device for removing methylobacterium from tap water. The second wash water is water from which no methylobacterium exists prior to being sprayed on the floor 520 of the washing area by removing the methylobacterium.

In short, the keratin remaining on the washing place floor 520 can be removed with water. If it is water, it is possible to easily secure the force and amount of water necessary for stripping off the keratin. As a result, it is possible to reliably remove dead skin cells at a low cost. On the other hand, in order to remove Methylobacterium that has been sprinkled over a wide floor surface, a large amount of the second washing water, which is replacement water, is required. This is because if removal failure occurs, it will cause the generation of pink slime. Therefore, a removal device is provided in the flow path upstream of the nozzle part 10a, and the removal device removes Methylobacterium before sprinkling water. It can be replaced with water that does not. As a result, methylobacterium can be reliably removed, and the generation of pink slime can be prevented with a small amount of water and in a short period of time.

As described above, the cleaning apparatus 100 of the present embodiment is a practically extremely excellent bathroom cleaning technique that can inexpensively, reliably, and in a short time prevent the occurrence of black mold or pink slime on the floor 520 of the bathroom wash area. It is established.

Further, in this embodiment, the black mold suppression step S1 is always performed first, and the pink slime suppression step S3 is always performed after.

In the black mold suppression step S1, cheap tap water is used as the first washing water, and water containing methylobacterium is sprinkled. Therefore, if this is done in a post-process, the cause of pink slime will be created again. Therefore, by performing the black mold suppression step S1 first and then spraying the second washing water, it is possible to reliably suppress the generation of black mold and pink slime.

Further, in the present embodiment, the control unit 300 controls the nozzle unit 10a, which is the cleaning means, to perform a water stopping step as a standing step in which sprinkling of water is prohibited after the pink slime suppression step S3. ing.

As a result, washing water containing methylobacterium is not sprayed by mistake, so the growth of pink slime can be effectively suppressed.

Further, in the present embodiment, the second washing water is water containing hypochlorous acid, or water containing hypochlorous acid whose sterilization concentration has been lowered. In addition, the low-concentration sterilizing water generator 20 has a hypochlorous acid generation tank 20a, and a removal device 20b is provided continuously with the hypochlorous acid generation tank 20a. Then, the tap water passes through the removing device 20b, and the methylobacterium is removed by the bactericidal action of the hypochlorous acid produced by the hypochlorous acid production tank 20a to become the second washing water. The hypochlorous acid generation tank 20a is adapted to generate hypochlorous acid by electrolyzing tap water. When the hypochlorous acid generation tank 20a is energized, at least the second washing water It is designed to continue at all times while water is being discharged from.

For the purpose of cleaning the bathroom 500, the use of water containing hypochlorous acid has been considered. However, according to the conventional technical knowledge, the concentration of hypochlorous acid must be high in order to achieve a sufficient fungicidal action after watering. Specifically, at the concentration of hypochlorous acid generated from chlorine in tap water, the bactericidal action is low, and the bactericidal action (bactericidal power) is further attenuated by the concentration decrease in the sprinkling water (spraying water). A special treatment for concentration was required, and a long time was required for sterilization treatment.

However, hypochlorous acid of low concentration can also be used as the second washing water of the present embodiment. Further, the second washing water of the present embodiment only needs to remove Methylobacterium, and may become simple water after losing its bactericidal action after watering.

Furthermore, since the removal device of this embodiment is provided in the hypochlorous acid generation tank 20, the generation of the second washing water can be achieved with an extremely simple configuration.

Further, in this case, since the hypochlorous acid generation tank 20 continues to be energized until the water discharge from the nozzle part 10a of the second washing water is completed, it is possible to reliably prevent the sprinkling of fresh water while the control is simple. be able to. This makes it possible to easily and reliably prevent the generation of pink slime due to erroneous fresh water sprinkling.

The bathroom 500 of the present embodiment includes a washing space floor 520 that constitutes the washing space of the bathroom 500 and has a drain port 521, the washing device 100, a counter 530 installed on one side of the bathroom 500, and the and bathroom walls 541 to 544 provided on the periphery of the bathroom 500. The nozzle portion 10a as the washing means is arranged on the counter 530 side, but the nozzle portion 10a as the washing means is located in the washing area. The first wash water and/or the second wash water may land on the bathroom walls 541 to 544 upstream of the drain port 521 in the drainage flow flowing through the floor 520 toward the drain port 521. .

The part of the floor where keratin and methylobacterium are most likely to remain is the position of the counter 530 where people wash their bodies. By arranging the nozzle part 10a, which is a washing device, at this position, for example, when water from which methylobacterium has been removed using hypochlorous acid is adopted as the second washing water, the concentration attenuates during water discharge (sprinkling). Since the degree of is low, the concentration of hypochlorous acid can be even lower.

Further, in this case, a high water force can be provided in the vicinity of the drain port 521 by the drainage flow flowing toward the drain port 521, and the water force can act to push keratin and the like toward the drain port 521. can. In general, it is difficult to remove keratin in the vicinity of the drain port 521 because keratin re-adheres due to a decrease in the water level due to diffusion of water. In particular, the nozzle portion 10a as a washing means supplies the first washing water and/or the second washing water to the bathroom walls 541 to 433 on the upstream side of the drain port 521 in the drainage flow flowing through the floor 520 of the washing place toward the drain port 521. If it is designed to let water land on it, the keratin can be removed more reliably.

Moreover, the surface of the floor 520 of the washing area is preferably coated with a hydrophilic coating. In this case, even if keratin and methylobacterium adhere to the floor 520 of the washing area, the high affinity between the floor 520 of the washing area and water acts extremely effectively in removing keratin and bacteria. That is, even with a small amount of washing water and a low washing water pressure, it is possible to quickly and sufficiently suppress black mold (keratin removal) or pink slime (replacement with water containing no methylobacterium).

Further, it is preferable that grooves 522 extending in a direction non-parallel to the direction in which the first wash water and/or the second wash water land are formed in the floor 520 of the washing place (FIG. 30(b)). reference). In this case, when the sprayed washing water collides with the floor 520 of the washing place or flows on the floor 520 of the washing place, the water collides with the grooves 522 and forms vertical waves (pulsation of water). Such turbulent flow of water makes it easier for keratin and methylobacterium to come off the floor 520 of the washing area. In addition, even when the washing water spreads over the floor of the washing place 520 and flows, the waves suppress reattachment of keratin and methylobacterium to the floor. As a result, the keratin and methylobacterium can be reliably removed from the floor even if the force and amount of water sprayed are small.

Furthermore, the control section 300 controls the nozzle section 10a as the cleaning means to prevent the first washing water from being discharged to the drain port 521 after the black mold suppression step S1 and before the pink slime suppression step S3. It is preferable to carry out a waiting watering standby process. In this case, only a small amount of the second wash water is required to replace the first wash water with the second wash water.

Further, when washing the washing space floor 520 of the bathroom 500 using the washing apparatus 100 of the present embodiment, it is more desirable to adopt a regulation that matches the mode of use of the user. Specifically, if water is sprayed from the cleaning device 100 against the user's intention, the sprayed water may collide with a person, and the collision may affect the ability to remove and replace dead skin cells. It is also important to prevent scattering outside the bathroom.

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

<Variation of watering control>
The washing apparatus 100 of the present embodiment is a washing apparatus for the bathroom washing floor, which constitutes the washing area of the bathroom 500 and cleans the washing area floor 520 having the drain port 521, and is a washing means for spraying washing water on the washing area floor 520. and a control unit 30 for controlling the nozzle unit 10a. Then, the control unit 30 controls the nozzle unit 10a to sprinkle washing water so that the keratin that causes black mold remaining on the floor 520 of the washing area is discharged from the floor 520 of the washing area to the drain port 521. a suppression step S1, and a pink slime suppression step S3 in which washing water is sprayed so that residual water containing methylobacterium remaining on the floor 520 of the washing place is replaced with washing water from which the methylobacterium has been removed. It is to be implemented. The control unit 300 is configured to change the amount of water sprinkled on the washing floor 520 in the black mold suppression step S1 and the pink slime suppression step S3.

In the black mold suppression step S1, it is important to remove the keratin remaining on the floor 520 of the washing place and discharge it without leaving it in the drain port 521. When the keratin is removed only by sprinkling water, it is important to soften the keratin and peel it off, and it is desirable to increase the amount and pressure of water.

On the other hand, in the pink slime suppression step S3 of making washing water containing no methylobacterium and sprinkling it to replace residual water, if the removal of methylobacterium is insufficient, the water-sprinkled methylobacterium Umu creates pink slime. Therefore, high removal performance is required. In addition, if the washing water sprayed in the pink slime suppression step S3 does not have bactericidal properties or if the concentration of the bactericidal component is low, the generated pink slime cannot be removed. A high degree of precision is required for the performance of removing fumes.
As described above, different requirements exist in the two steps of the present embodiment. In order to remove with precision, a removing means with very high performance is required.
In the present embodiment, the pink slime suppression step S3 does not require softening or peeling off the keratin. It satisfies the requirements at a high level and enhances the removal performance of Methylobacterium.

The nozzle portion 10a as the washing means is configured to use water as washing water used in the black mold suppression step S1. S3 is implemented.
Here, in both the black mold suppression step S1 and the pink slime suppression step S3, the control unit 30 controls the washing space floor 520 and the lower portions of the bathroom walls 541 to 544 that rise around the washing space floor 520 by controlling the nozzle unit 10a. It is more preferable that water is sprayed on the pink slime suppression step S3, which is performed after the black mold suppression step S1, from the watering position on the bottom of the bathroom walls 541 to 544 with tap water in the black mold suppression step S1. It is more preferable that the spraying position for the lower part of the bathroom walls 541 to 544 with the cleaning water from which the bacterium has been removed is higher.

The inventors of the present invention found that most of the causes of black mold in the bathroom 500 are keratin, and also found that water can be used to remove keratin. Therefore, it is preferable to carry out the black mold suppression step S1 with the cheapest and safest water, such as tap water.
On the other hand, when the black mold suppression step S1 is performed with water, water is also sprinkled so as to increase the amount of methylobacterium in the water. Therefore, it is preferable that the black mold suppression step S1 is always performed before the pink slime suppression step S3.
By adopting the simple control mode as described above, it is possible to solve the problem of suppressing black mold caused by water.
Furthermore, since keratin is generated when the user is washing his/her body, it tends to accumulate near the walls of the bathroom walls 541 to 544 under the influence of a shower or the like. For this reason, by spraying water in the black mold suppressing step S1 to the lower part of the wall, it is possible to reliably remove keratin along the wall.
On the other hand, if Methylobacterium is sprinkled along the wall, the possibility of pink slime growing along the wall also increases. For this reason, the watering area of the pink slime suppression step S3 is made wider than the latter so as to cover all the watering areas of the black mold suppression step S1, that is, the bathroom walls 541 to 544 are positioned higher in the pink slime suppression step S3. It is preferable to water to As a result, washing with water can be realized with simple control and at low cost, and practically extremely useful effects can be provided.

In addition, the control unit 30 controls the nozzle unit 10a, which is the cleaning means, so that the amount of water sprayed per unit time in the pink slime suppression step S3 is less than the amount of water sprayed per unit time in the black mold suppression step S1. Preferably, it is designed to

In the pink slime suppression step S3, for example, water is sprinkled after removing the methylobacterium in the water before sprinkling, but the performance of softening or peeling off keratin sticking to the floor surface is not required. That is, in the pink slime suppression step S3, even a small amount of water sprinkled per unit time is sufficient. And removing the methylobacterium before watering is easy if the amount of watering is small.
On the other hand, if the amount of water sprayed (flow rate) in the pink slime suppression step S3 is increased, the replacement performance can be enhanced and the replacement time can be shortened. However, it is necessary to have a high generating performance to ensure the amount of washing water that does not contain methylobacterium.
In short, in the pink slime suppression step S3, it is preferable to reduce the amount of water sprayed per unit time based on the knowledge that the amount of water and the force of water for watering are unnecessary. As a result, it is possible to build a system that can reliably perform residual water replacement at a low cost.

Further, the control unit 30 controls the nozzle unit 10a, which is the cleaning means, to perform a watering standby step of stopping watering after the black mold suppression step S1 and before the pink slime suppression step S3. It is preferable that

For example, in the black mold suppressing step S1 performed with water, a lot of residual water remains due to the sprinkling of a lot of water. To completely replace all this with Methylobacterium-free wash water would require a large production of Methylobacterium-free wash water. Therefore, it is preferable to provide a standby process for waiting for the residual water remaining after watering in the black mold suppressing process S<b>1 to be drained to the drain port 521 . As a result, it is possible to further reduce the amount of washing water that does not contain methylobacterium, and it is possible to achieve a more inexpensive and simple configuration.

Furthermore, the control unit 30 controls the nozzle part 10a as the washing means so that the water spraying force per unit time in the pink slime suppressing step S3 is smaller than the water spraying force per unit time in the black mold suppressing step S1. Preferably, it is designed to

According to this, scattering of Methylobacterium in the remaining water on the floor of the washing place 520 to the bathroom walls 541 to 544 and the like due to watering in the pink slime suppression step S3 can be suppressed. As a result, it is possible to prevent the residual water splashed on the bathroom walls 541 to 544 from subsequently splashing again onto the replaced washing space floor 520 and generating pink slime on the washing space floor 520 .

In addition, the control unit 30 causes the total amount of water sprinkled per unit area of the washing space floor 520 in the pink slime suppression step S3 to be greater than the total amount of water sprinkled per unit area of the washing space floor 520 in the black mold suppression step S1. Thus, it is preferable that the nozzle portion 10a, which is the cleaning means, is controlled.

In the bathroom 500, even if the water level is high at the position where the water is sprinkled, the water spreads over the floor surface of the bathroom 500 in the process of draining water toward the drain port 521, and the water level drops, and the drainage velocity also decreases. Therefore, in the pink slime suppression step S3 (replacement step), there is a risk that the methylobacterium in the residual water will remain attached to the floor surface, resulting in defective replacement. Therefore, in the pink slime suppression step S3 (replacement step), even if the amount of water sprinkled per unit time is reduced, the amount of water sprinkled per unit area of the floor surface of the floor of the washing space 520 is increased so that replacement can be achieved. It is possible to effectively prevent the occurrence of residue.

In addition, the control unit 30 controls the nozzle unit 10a, which is the cleaning means, so that the total amount of water sprayed in the pink slime suppression step S3 is greater than the total amount of water sprayed in the black mold suppression step S1. preferably.

A control mode in which washing water containing no methylobacterium is generated slowly and with high precision, and a small amount of water is slowly sprinkled while the total amount of water sprinkled over the whole is increased is the most inexpensive and reliable pink slime method. can prevent the occurrence of

In addition, the nozzle part 10a, which is the washing means, is provided on one side of the bathroom 500 and rotates to sequentially wash the washing place floor 520. The control part 30 controls the rotation of the nozzle part 10a, which is the washing means. Further, the control unit 30 controls the rotation speed of the nozzle unit 10a in the pink slime suppression step S3 to be smaller than the rotation speed of the nozzle unit 10a in the black mold suppression step S1. It is preferable that the nozzle portion 10a is controlled in such a manner.

In other words, the watering for removing keratin in the black mold suppressing step S1 involves spraying a large amount of vigorous water and increasing the rotation speed of the nozzle portion 10a, which is the cleaning means, to reduce the flow rate of the waste water and increase the flow speed of the waste water. It is desirable to reliably prevent redeposition of keratin to the floor surface, which is more likely to occur as the level of keratin decreases. In addition, it is desirable to lower the rotation speed of the cleaning means so that the water level is lowered due to the decrease in the amount of water and the replacement residue does not occur.

<Changes according to the status of watering control>
The washing apparatus 100 of the present embodiment is a washing apparatus for the bathroom washing floor, which constitutes the washing area of the bathroom 500 and cleans the washing area floor 520 having the drain port 521, and is a washing means for spraying washing water on the washing area floor 520. and a control unit 30 for controlling the nozzle unit 10a. Then, the control unit 30 controls the nozzle unit 10a to sprinkle washing water so that the keratin that causes black mold remaining on the floor 520 of the washing area is discharged from the floor 520 of the washing area to the drain port 521. a suppression step S1, and a pink slime suppression step S3 in which washing water is sprayed so that residual water containing methylobacterium remaining on the floor 520 of the washing place is replaced with washing water from which the methylobacterium has been removed. implement.
Further, the control unit 30 of the present embodiment has an execution condition changing means 30a that changes the watering of the washing space floor 520 in at least one of the black mold suppression step S1 and the pink slime suppression step S3 according to preset conditions. (See Figure 3).

In developing a cleaning technique for suppressing mold in the bathroom 500, the inventors of the present invention were able to obtain knowledge on preventive measures rather than a technique for sterilizing generated mold. This makes it possible to suppress the growth of mold for an extremely long period of time by using simple washing water such as water without using a high-concentration disinfectant or the like and in a short period of time.
When water, bacteria-free water, or low-concentration sterilizing water is used as washing water, if black mold or pink slime occurs, the washing water cannot sterilize the water. Black mold and pink slime growth cannot be stopped. Therefore, it is important how to prevent the generation of black mold and pink slime.
To explain in more detail, keratin can basically be removed with water, but if there is a lot of keratin or if the keratin has dried and stuck to the floor, the keratin may be removed. Difficult to remove and may remain. This is what causes black mold. In addition, once the pink slime is generated, it is covered with mucous membranes, so it is difficult to remove with water, and it is necessary to use something with high sterilization performance.
Therefore, it is preferable to provide the execution condition changing means 30a, set the condition according to the risk of mold generation in advance, and carefully change the water sprinkling control of each step S1 and S3 according to the situation. be. As a result, it succeeded in suppressing the generation of mold and pink slime dramatically compared to manual control or constant (fixed) control.

For example, the preset conditions are conditions based on the leaving time from after bathing to the start of washing.
If the time left after bathing until the start of washing becomes longer, the dead skin cells will dry out and the thin dead skin cells will stick firmly to the floor surface. Methylobacterium in the water also adheres to the washing area floor 520 upon drying. In a state where dead skin adheres to the floor 520 of the washing area, it is necessary to take measures to improve the performance of removing dead skin.
Therefore, for example, it is determined that the longer the standing time is, the more the drying progresses and the sticking progresses, and the shorter the standing time is, the less the sticking progresses. is preferably implemented. This makes it possible to improve both water saving and removability.

Alternatively, for example, the preset conditions are conditions based on any of bathroom temperature, humidity, and season.
The higher the temperature, the quicker the keratin dries and the more likely it is to stick. In addition, when the humidity is high, the growth of fungi and the like becomes more intense. Information on temperature and humidity may be estimated based on time (seasonal) information, in addition to using these measurement results. By adopting control corresponding to these, it is possible to suppress the generation of 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 bathroom 500 .
By using the washing place for many years, scratches and irregularities are formed on the floor of the washing place 520, and keratin and pink slime are likely to adhere. 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 performance due to adhesion of dirt and deterioration of the coating. 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 usage period of the bathroom 500, the effect of the present invention can be enhanced while the configuration is simple and troublesome.

Alternatively, for example, the preset conditions are conditions based on the number of bathers.
As the number of bathers increases, the amount of keratin increases and the amount of water used increases, so the amount of residual methylobacterium increases. If washing control suitable for the number of bathers is adopted, water saving can be maintained and black mold and pink slime can be suppressed optimally.

Furthermore, in at least one of the black mold suppression step S1 and the pink slime suppression step S3, the execution condition changing means 30a changes the execution time of the steps S1 and S3, the washing water of the steps S1 and S3, and The total amount of water sprinkled per unit area, the water pressure of the washing water in the steps S1 and S2, the water 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. Preferably, at least one of the concentration is changed.
Since at least one of the water volume, water pressure, water temperature, and sterilization concentration changes according to the usage condition of the bathroom 500 when exfoliating or replacing with washing water that does not contain methylobacterium, the washing strength can be changed. Optimal cleaning for the condition can be achieved.

In particular, the execution condition changing means 30a changes the total amount of water sprinkled per unit area of the washing water in each of the steps S1 and S3 in both the black mold suppression step S1 and the pink slime suppression step S3 according to preset conditions. It is preferably designed to
For example, as a countermeasure against sticking to the floor surface due to dryness of keratin and methylobacterium, it is desirable to re-soak the keratin as it can be handled with water, and it is desirable to use washing water that does not contain methylobacterium. As for replacement, it is desirable to increase the reliability of replacement by increasing the amount of sprinkled water. Therefore, by changing the total amount of water sprayed per unit area of the washing water in each step S1, S3, it is possible to reliably and inexpensively remove the causes of black mold and pink slime.

In addition, the control unit 30 of the present embodiment further includes a manual change means 30b for changing the watering for the washing space floor 520 in at least one of the black mold suppression step S1 and the pink slime suppression step S3 according to the conditions input by the user (Fig. 3). The manual change means 30b is connected to the operation section 35 (see FIG. 1).
The washing space floor 520 can be kept "clean" for a long time by automatic control based on preset conditions as described above. However, we have made it possible to respond to individual evaluations of "clean condition", variation in usage conditions (severity), and requests to keep it even more "clean condition" than usual when guests come over. By providing a manual change means 30b that can manually adjust the contents of control according to input conditions by the user, user satisfaction and ease of use can be further improved.

In addition, the control unit 30 performs a preliminary response control consisting of exfoliation and replacement watering that generates and sprinkles water that does not contain methylobacterium as a preliminary response, and mold or pink slime generated on the floor surface of the washing space floor 520. It is preferable that both post-facto control for sterilizing as a post-facto response can be performed.
Not only proactive control to keep the floor 520 of the bathroom 500 clean by removing the causes of mold and pink slime, but also conventional post-event control that can deal with mold and pink slime. By having both, the "clean state" of the floor 520 of the bathroom 500 can be more reliably maintained for a long period of time, and the labor for cleaning can be considerably reduced.

In this case, the control unit 30 is configured to perform proactive control in a predetermined first cycle, and to perform reactive control in a predetermined second cycle longer than the first cycle. More preferably.
In this way, by optimizing the frequency of each of proactive control and reactive control, it is possible to maintain a "clean state" more reliably for a long time while optimizing running costs. .

In addition, it is preferable that the control unit 30 can freely and irregularly perform post-event control in accordance with conditions input by the user.
The washing space floor 520 can be kept "clean" for a long time by automatic control based on preset conditions as described above. However, it is difficult to reliably prevent the generation of mold under any circumstances. For example, pink slime occurs when mold grows due to accumulation of nutrients other than keratin, when Methylobacterium scatters, or when water other than replacement water is sprinkled after replacement. If black mold or pink slime develops, they cannot be removed with water or wash water that does not contain methylobacterium. So, for example, if you set up a manual mode that performs cleaning with enhanced sterilization, in addition to the long-lasting function of "clean state", you can also implement a function to sterilize mold that has occurred, and user satisfaction is further enhanced.

<Effect of pink slime control process>
The washing apparatus 100 of the present embodiment is a washing apparatus for the bathroom washing floor, which constitutes the washing area of the bathroom 500 and cleans the washing area floor 520 having the drain port 521, and is a washing means for spraying washing water on the washing area floor 520. and a control unit 30 for controlling the nozzle unit 10a. Then, the control unit 30 controls the nozzle unit 10a so that the residual water containing the methylobacterium remaining on the floor 520 of the washing place is replaced with the washing water from which the methylobacterium has been removed. A pink slime suppression step S3 of sprinkling is to be carried out.

According to the present embodiment, the pink slime suppression step S3 of removing the residual water containing methylobacterium remaining on the floor 520 of the washing place prevents bacteria, especially methylobacterium, on the floor 520 of the washing place. can be remarkably reduced, and the occurrence of mold on the floor 520 of the washing space can be remarkably suppressed.

In particular, in the pink slime suppression step S3, residual water containing methylobacterium remaining on the floor of the washing area 520 is replaced with wash water containing no methylobacterium produced by removing methylobacterium in tap water. As a result, the methylobacterium on the floor 520 of the washing area can be significantly reduced without using high-concentration, fast-acting sterilizing water. Then, it is not necessary to sterilize the bacteria in the bathroom 500, nor to kill or remove all the nutrient sources. The washing water does not need to be high-concentration, fast-acting sterilizing water, which was conventionally considered, and running costs can be kept low.

It can be said that the present embodiment is not a reactive technology for sterilizing pink slime after it is generated, but a proactive technology for hitting the source of the generation before it happens. With regard to the pink slime generated in the bathroom 500, according to the cleaning device 100 of the present embodiment, customer satisfaction of 99% or more can be achieved by this suppression.

The inventor of the present invention has identified (discovered) the causative agent that causes the generation of pink slime in the bathroom 500 . That is, the inventors of the present invention have found that pink slime is caused by a minute amount of methylobacterium in tap water, and pink slime is caused by the proliferation of this on the floor 520 of the washing area. And by being able to identify this, it became possible to develop a technology that removes the causative substances in advance instead of killing the pink slime after it occurs. As a result, the washing apparatus 100 of the present embodiment has been established as a washing technique that does not require high-concentration sterilizing water or long-term sterilization.

In addition to the nozzle portion 10a for spouting tap water as the first wash water and low-concentration sterilizing water as the second wash water, the washing means is provided in the flow path upstream of the nozzle portion 10a. It has a low-concentration sterilized water generator 20 including a removal device 20b for removing methylobacterium. The second wash water is water from which no methylobacterium exists prior to being sprayed on the floor 520 of the washing area by removing the methylobacterium.

In order to kill the Methylobacterium in the water sprinkled on the floor 520 of the wide wash area, a large amount of sterilized water is required for reliable attack on the Methylobacterium. Also, if an attack failure occurs, it will cause pink slime to occur. Therefore, a removal device is provided in the flow path upstream of the nozzle part 10a, and the removal device removes Methylobacterium before sprinkling water, and the remaining water remaining on the floor 520 of the washing place is treated as water free of Methylobacterium. By adopting the configuration of replacing with , it is possible to reliably remove methylobacterium. As a result, the generation of pink slime due to poor killing can be prevented with a smaller amount of water and in a shorter period of time.

In addition, in the bathroom 500 of the present embodiment, the floor 520 of the washing area is formed so as to be inclined toward the drain port 521, and the nozzle part 10a, which is the washing means, is installed on one side of the bathroom 500. The nozzle part 10a is arranged on the counter 530 side and is arranged to be upstream from the drain port 521 in the drainage flow flowing through the washing place floor 520 toward the drain port 521. The controller 30 rotates so as to spray water sequentially from the upstream side of the nozzle 520 toward the drain port 521. In the pink slime suppression step S3, the control unit 30 first sprays water from the nozzle unit 10a to wash the washing place floor 520. The rotation speed of the nozzle portion 10a is changed so that the washing water that comes later lands on the upstream side of the washing water that is flowing in the nozzle portion 10a.

As a result, the landed water becomes a drainage flow and flows along the slope of the washing place floor 520 to the drainage port 521, and the rotation of the nozzle part 10a sequentially sprays water toward the drainage port 521. Concomitantly, the washing water that has landed on the floor 520 of the washing place can be easily driven into the drain port 521, and the entire floor surface of the floor 520 of the washing place can be easily replaced.

Also, the washing water that has been sprayed first lands on the floor 520 of the washing place, and then flows along the slope of the floor 520 of the washing place while forming a water film. Since the water film of washing water flowing on the washing place floor 520 spreads toward the drain port 521, the water film is torn, and there are places where the washing water passes and places where it does not. Here, by changing the rotation speed so that the later washing water lands on the upstream side of the washing water that has been sprayed earlier and is flowing on the washing floor 520, the washing floor 520 that has landed earlier is changed. The water film is replenished with washing water to be sprinkled later, and the water film is prevented from breaking. As a result, the entire surface of the washing place floor 520 can be more reliably replaced with washing water.
Furthermore, even if the state of the water film can be maintained, water splattering occurs when the subsequent wash water lands on the downstream side of the previously sprayed wash water. As a result, the water containing methylobacterium scatters, and although the water containing bacteria is replaced with the washing water, the water containing bacteria scatters in the replaced region. Therefore, by causing the water to land on the upstream side of the washing water that has previously been sprayed to form a water film, it is possible to prevent the water containing bacteria from scattering when it lands on the water.

At least part of the washing water sprayed from the nozzle portion 10a preferably lands on the bathroom walls 541 to 544 rising upward from the floor 520 of the washing place.

The water containing methylobacterium also adheres to the bathroom walls 541 to 544 due to the user's bathing action. And if it adheres to the bathroom walls 541-544 for a long time, pink slime will be generated on the bathroom walls 541-544. Therefore, by causing at least part of the wash water to land on the bathroom walls 541 to 544, the bathroom walls 541 to 544 can also be replaced with water that does not contain methylobacterium. Also, since the washing water flows after flowing through the bathroom walls 541 to 544 at the joints between the bathroom walls 541 to 544 and the washing place floor 520, reliable replacement can be carried out. That is, it is possible to reliably replace the corners between the bathroom walls 541 to 544 and the floor 520 of the washing area.

In addition, it is preferable that the nozzle portion 10 a sprays water from the wall surface on the upper side of the drainage flow flowing toward the drainage port 521 .

By sprinkling water from the upper inclined wall surface of the washing place floor 520 , the washing water reflected by the wall surface forms a flow toward the drain port 521 . As a result, the water containing methylobacterium present on the washing place floor 520 can be efficiently drained to the drain port 521 by the flow of the washing water reflected by the wall surface. As a result, water containing methylobacterium can be prevented from accumulating under the walls of the bathroom walls 541 to 544, and the generation of pink slime can be effectively prevented.

In addition, it is preferable that the control unit 30 rotate the nozzle unit 10a as the washing means at a speed slower than the speed of the waste water flowing down the slope of the floor 520 of the washing place.

The washing water reflected by the wall surface forms a water film as it advances on the floor 520 of the washing place. There will be places that do not. Therefore, by devising the rotation speed, it is possible to prevent the water film from being broken, and to more reliably replace the entire washing place floor 520 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 place floor 520 close to the nozzle portion 10a, which is the washing means, has a high velocity component in the water spouting (spraying) direction by the nozzle portion 10a, which is the washing means, when it lands, and tries to move further toward the wall surface. . Proceeding toward the wall surface increases the possibility that Methylobacterium will gather on the wall surface side and cause pink slime. Therefore, by landing the water at a high position on the wall surface, while increasing the energy toward the drain port 521, the water that flows after landing on the wall surface and the water that has landed earlier are merged, and the water that has landed earlier is made to land on the water surface first. It is effective to prevent the water that has been standing on the wall from going to the wall.
If the water is made to land on a high wall surface far from the nozzle part 10a which is the washing means, it may pass over the sloping ridgeline of the floor surface of the floor 520 of the washing place. That is, backflow may occur, and water containing bacteria may reach a region where replacement with water containing no bacteria has been completed. Therefore, by causing the water to land at a lower position on the wall surface that is far from the nozzle portion 10a, which is the cleaning means, the speed components of the water that has landed on the floor surface and the water from the wall surface can be offset. It is possible to effectively suppress the occurrence of such a backflow.

In addition, it is preferable that a storage section for storing the appliances of the bathroom 500 is further provided, and the storage section is provided above the floor surface of the floor 520 of the washing area.

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

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

After executing the pink slime suppression step S3, when the concentrated water spraying process is executed for the storage section, the washing water in the concentrated watering process passes through the area after the washing place floor 520 has been replaced with the washing water. 520 permutations may eventually end up in an insufficient state. Therefore, by performing the pink slime suppression step S3 after performing the concentrated watering step for the storage portion, it is possible to prevent the occurrence of insufficiently replaced regions.

Further, regarding the effect of the pink slime suppression step S3, it is preferable that the surface of the washing space floor 520 is hydrophilically coated.
In this case, even if methylobacterium adheres to the floor 520 of the washing area, the high affinity between the floor 520 of the washing area and water acts extremely effectively in removing the bacteria. That is, even with a small amount of washing water and a low washing water pressure, it is possible to quickly and sufficiently suppress pink slime (substitution with water containing no methylobacterium).

Further, with respect to the effect of the pink slime suppression step S3, it is preferable that grooves 522 extending in a direction non-parallel to the direction in which the wash water lands are formed in the floor 520 of the washing place (Fig. 30(b) )reference).
In this case, when the sprayed washing water collides with the floor 520 of the washing place or flows on the floor 520 of the washing place, the water collides with the grooves 522 and forms vertical waves (pulsation of water). Such turbulent flow of water facilitates the separation of Methylobacterium from the floor 520 of the washing area. In addition, even when the washing water spreads over the floor 520 of the washing place, the waves suppress reattachment of Methylobacterium to the floor. As a result, Methylobacterium can be reliably removed from the floor even if the water pressure and amount of water sprayed is small.

<Variation of Low Concentration Sterilized Water Generation>
The washing apparatus 100 of the present embodiment is a washing apparatus for the bathroom washing floor, which constitutes the washing area of the bathroom 500 and cleans the washing area floor 520 having the drain port 521, and is a washing means for spraying washing water on the washing area floor 520. and a control unit 30 for controlling the nozzle unit 10a. Then, the control unit 30 controls the nozzle unit 10a so that the residual water containing the methylobacterium remaining on the floor 520 of the washing place is replaced with the washing water from which the methylobacterium has been removed. A pink slime suppression step S3 of watering is carried out.

In addition to the nozzle portion 10a for spouting tap water as the first washing water and low-concentration sterilizing water as the second washing water, the washing means includes water in the flow path upstream of the nozzle portion 10a. It has a low-concentration sterilized water generator 20 including a removal device 20b that removes methylobacterium from.
More specifically, as shown in FIG. 14, the downstream part of the low-concentration sterilized water generator 20 of the present embodiment is the removing device 20b, which is the upstream part of the low-concentration sterilized water generator 20. Methylobacterium-free wash water is produced by killing methylobacterium in tap water using hypochlorous acid produced in a hypochlorous acid production tank 20a, which is an example of a disinfectant production apparatus. It is designed to
The removal device 20b is a raw water containing hypochlorous acid (an example of a sterilant) generated in a hypochlorous acid generation tank 20a, which is an example of a sterilant generation device that is an upstream part of the low-concentration sterilized water generation unit 20. It has a dispersing part 20c that kills Methylobacterium in the raw water by dispersing the concentration and generates washing water that does not contain Methylobacterium. Specifically, the distributed portion 20c is formed by partition walls 20d arranged alternately. In addition, in FIG. 14, 20e is an electrode and 20f is an outer case.

Here, as shown in FIG. 15, the removal device 20b may be configured separately from the hypochlorous acid generation tank 20a. In this case, the removal device 20b is provided between the hypochlorous acid generation tank 20a and the nozzle portion 10a.

Moreover, FIG. 16 is a schematic diagram showing a first alternative example of the low-concentration sterilized water generator. In the case of FIG. 16, instead of adopting the hypochlorous acid production tank 20a and the removal device 20b, a coil 21 is provided for killing the methylobacterium in the tap water by applying heat to the tap water flowing in the pipe. is provided. With such a configuration as well, it is possible to kill Methylobacterium in the raw water and produce wash water containing no Methylobacterium.

Furthermore, FIG. 17 is a schematic diagram showing a second alternative example of the low-concentration sterilized water generator. In the case of FIG. 17, instead of adopting the hypochlorous acid generation tank 20a and the removal device 20b, the tap water flowing in the pipe having ultraviolet transparency is irradiated with ultraviolet rays to kill methylobacterium in the tap water. An ultraviolet lamp 22 is provided for illuminating. With such a configuration as well, it is possible to kill Methylobacterium in the raw water and produce wash water containing no Methylobacterium.

Moreover, FIG. 18 is a schematic diagram showing a first modified example of the low-concentration sterilized water generator. In the case of FIG. 18, in addition to the hypochlorous acid generation tank 20a of FIG. 3, the coil 21 of FIG. . According to such a configuration, it is possible to kill Methylobacterium in raw water and produce sterilized water containing no Methylobacterium and having a desired sterilizing effect.

3 and 16 to 18 are adopted, removal at the bacterial stage of Methylobacterium rather than pink slime is performed, and Methylobacterium is removed from the water before sprinkling. Therefore, washing water containing no methylobacterium can be efficiently produced.

Among these, when the configuration of FIG. When the chloric acid generation tank (an example of a disinfectant generation device) 20a is used, even hypochlorous acid of extremely low concentration can be very inexpensively and reliably applied to the floor of the washing area as long as it has immediate effect. Can suppress pink slime that may occur.

In the removal device 20b of the present embodiment, even after the washing water after killing Methylobacterium is discharged from the nozzle portion 10a, a low sterilization ability remains in the first range shorter than the full length of the bathroom 500. It is designed to generate sterilized water as washing water.
As a result, in the pink slime suppression step S3, sterilization and replacement are performed in the first range of the washing space floor 520, and only replacement is performed in the second range outside the first range of the washing space floor 520. It can be realized that it will be done.
By replacing residual water with washing water that does not contain methylobacterium, the generation of pink slime can be dramatically improved and the clean state can be maintained for a long time. However, in the bathroom 500, washing and bucket watering are also performed, so it is difficult to maintain a state completely free of Methylobacterium. Once pink slime is generated by Methylobacterium, it cannot be removed by washing water that does not contain Methylobacterium, which is not bactericidal. removal with a disinfectant) is required.
On the other hand, if it is killed at the stage of a bacterium called Methylobacterium, the deterioration of the disinfectant is low, and it is easy to maintain a low concentration of disinfectant even after it is killed. There is no difficulty in producing a disinfectant, and if it is bactericidal at a low concentration, the effect on the equipment is small.
Therefore, in the present embodiment, as a preferred aspect, instead of maintaining sterilization for the entire washing space floor 520, it is possible to safely and easily spray water while ensuring sterilization within the first range. ing. In this range, in addition to maintaining "cleanness" by replacing residual water, it is possible to maintain sterilization, remove Methylobacterium in water that has been sown after replacement, and prevent it from occurring. Attack the pink slime that has fallen. As a result, it is possible to maintain even more "cleanliness" and greatly reduce the time and effort required for cleaning.

Further, the nozzle part 10a of the present embodiment is arranged on the counter 530 side of the bathroom 500, and the counter 530 and the drain port 521 are included in the first range.
As described above, in the first range, sterilization can be ensured in addition to maintenance of "cleanliness" by replacement. Therefore, by devising so that the counter 530 and the drain port 521 are positioned within the first range, it is possible to ensure the sterilization of the portion where methylobacterium is likely to remain and where the pink slime is highly likely to occur. That is, the maximum effect can be obtained in the bathroom 500 by simply devising the arrangement.
FIG. 19 is a schematic diagram showing an example of such a sterilization area and a replacement area. In this example, approximately half of the washing space floor 520 on the counter 530 side (nozzle portion 10a side) is the sterilization area, and approximately half on the far side from the counter 530 (and the nozzle portion 10a) is the replacement area. ing.

In relation to the sterilization effect, the control unit 30 can spray wash water by controlling the nozzle unit 10a, which is the washing means, so that the wash water passes through the air and lands directly on the drain port 521. It is more preferable that
When the wash water reaches the drain port 521 through the floor 520 of the washing place, the sterilization concentration of the wash water may decrease due to contact with organic matter or residual water, and the sterilization effect may not be expected. If it is desired to avoid this, by adopting a control such that the water lands directly on the drain port 521 via the air, it is possible to more reliably replace the drain port 521 with a high risk of generating pink slime with a simple configuration. can be implemented.
In this case, it is more preferable that the nozzle portion 10a is arranged on the counter 530 side and close to the drain port 521. As shown in FIG.
Since the bactericidal concentration of the bactericidal agent decreases due to contact with the air, even if the bactericidal agent passes through the air, the concentration may become low and the effect cannot be expected. Therefore, by arranging the nozzle part 10a near the drain port 521, it is possible to suppress the attenuation of the bactericidal concentration with a simple configuration, that is, without the need to increase the concentration of the bactericidal agent, that is, the methylobacteria. The sterilization of the pink slime to the drainage port 521 can be realized by the sterilization agent after sterilization.

Further, in the pink slime suppression step S3, in the first area, the wash water is sprayed so as to reach the lower part of the bathroom walls 541 to 544 rising from the periphery of the floor surface of the washing place floor 520. In addition, it is preferable that water is sprayed so that the height of the water landing on the wall surface on the counter 530 side is the highest.
Around the counter 530, a lot of water is splashed by a bather when bathing or showering, and the risk of generating pink slime is particularly high on the wall surface of the bathroom wall 542 on the counter 530 side. Therefore, replacement water is made to land on the wall surface on the counter 530 side so that replacement can be performed reliably, and further, by maintaining the bactericidal action in the area where the risk is high, the occurrence of pink slime is more reliably suppressed. , you can keep it "clean" for a long time.

Further, the nozzle part 10a of this embodiment is arranged below the counter 530 .
The area below the counter 530 has the most splashed water, and the wall surface below the counter 530 has the highest risk of generating pink slime. By arranging the nozzle part 10a below the counter 530, such a risk can be significantly reduced.

Further, the control unit 30 of this embodiment can change the first range by controlling the removing device 20b.
The replacement with the cleaning water in the pink slime suppression step S3 makes it possible to keep the clean state for a long time, but once pink slime is generated due to the water etc. being sprinkled after replacement, the washing water that does not contain methylobacterium can be used. It cannot be dealt with by sprinkling water. Making the entire area of the washing place floor 520 the first area where the sterilization action is ensured requires a high concentration, which may lead to waste, and there are concerns about equipment corrosion and the like. Therefore, it is beneficial to flexibly respond to various needs of users by making the first range variable, that is, by adjusting the concentration of the sterilizing component in the wash water. As a result, it is possible to reduce the problems of replacement technology while producing practically useful effects such as reducing the time and effort of cleaning, and shortening the maintenance and cleaning time of equipment accompanying the decrease in the frequency of high concentration.
Specifically, according to the control unit 30 of the present embodiment, by controlling the removal device 20b, the first range of the washing space floor 520 is set to zero, and the entire floor surface of the washing space floor 520 is set to the second range. In addition, it is also possible to implement a mode in which the second range of the washing space floor 520 is zero and the entire floor surface of the washing space floor 520 is the first range.

In addition, the low-concentration sterilizing water generating unit 20 (an example of a sterilizing agent generating device) of the present embodiment uses hypochlorite as a fast-acting sterilizing agent by decomposing chlorine in tap water with an electrode that is a sterilizing component generating means. The remover 20b is adapted to generate acid, and the generated hypochlorous acid is used to kill Methylobacterium in the tap water, thereby generating Methylobacterium-free wash water. It's like
Thus, when tap water is available, it is convenient to use chlorine in tap water to generate low-concentration but fast-acting hypochlorous acid. Hypochlorous acid is also attenuated by air at a high rate, so the second range is large. It is practically useful because it can easily ensure sufficient sterilization.

<Effective chlorine concentration in low-concentration sterilized water>
In the present embodiment, as described above, hypochlorous acid is generated by electrolyzing tap water whose effective chlorine concentration is usually 0.1 to 0.3 ppm, and the hypochlorous acid is used in tap water. of Methylobacterium to produce Methylobacterium-free wash water. As a result, the low-concentration sterilizing water generator 20 can efficiently generate low-concentration sterilizing water (an example of washing water containing no methylobacterium) from tap water without complicating the flow path configuration. ing.
The effective chlorine concentration of the cleaning water inside the removal device 20b, particularly in the outlet region, is adjusted to 0.4 to 1.0 ppm. This is because the cleaning water effective in the pink slime suppression step S3 is cleaning water having an effective chlorine concentration of 0.4 to 1.0 ppm in the inside of the removal 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 floor 520 of the washing place, it is necessary to use sterilized water with a high effective chlorine concentration. The concentration required to kill pink slime is 1 ppm or higher. However, in this embodiment, the concentration of the chlorine component contained in the raw water (0.1 ppm in areas where the effective chlorine concentration is low, the average effective chlorine concentration of tap water nationwide is 0.3 ppm) is slightly increased. Methylobacterium, which is the cause of pink slime, can be removed with only 0.4 to 1.0 ppm.

As described above with reference to FIG. 14, the removal device 20b of the present embodiment is generated in the hypochlorous acid generation tank 20a, which is an example of a sterilant generation device that is upstream of the low-concentration sterilization water generation unit 20. It has a dispersing part 20c that kills methylobacterium in the raw water by dispersing the concentration of the raw water containing hypochlorous acid (an example of a disinfectant) to generate washing water that does not contain methylobacterium. is doing.
By effectively dispersing the hypochlorous acid that can be locally generated in the hypochlorous acid generation tank 20a in the raw water in the dispersing unit 20c, even hypochlorous acid with a low effective chlorine concentration can be more It can surely react with Methylobacterium and effectively remove Methylobacterium in raw water.

In addition, as described above, the removal device 20b of the present embodiment has the sterilization capability in the first range shorter than the full length of the bathroom 500 even after the washing water after killing Methylobacterium is discharged from the nozzle portion 10a. remains as sterilized water as washing water.
As a result, in the pink slime suppression step S3, sterilization and replacement are performed in the first range of the washing space floor 520, and only replacement is performed in the second range outside the first range of the washing space floor 520. It can be realized that it will be done.
In the case of this embodiment, it is preferable that the available chlorine concentration of the wash water after it has landed on the first area of the floor 520 of the washing place is 0.4 ppm or more.
By replacing residual water with washing water that does not contain methylobacterium, the generation of pink slime can be dramatically improved and the clean state can be maintained for a long time. However, in the bathroom 500, washing and bucket watering are also performed, so it is difficult to maintain a state completely free of Methylobacterium. Once pink slime is generated by Methylobacterium, it cannot be removed by washing water that does not contain Methylobacterium, which is not bactericidal. removal with a disinfectant) is required.
On the other hand, if it is killed at the stage of a bacterium called Methylobacterium, the deterioration of the disinfectant is low, and it is easy to maintain a low concentration of disinfectant even after it is killed. There is no difficulty in producing a disinfectant, and if it is bactericidal at a low concentration, the effect on the equipment is small.
Therefore, in the present embodiment, as a preferred aspect, instead of maintaining sterilization for the entire washing space floor 520, it is possible to safely and easily spray water while ensuring sterilization within the first range. ing. In this range, in addition to maintaining "cleanness" by replacing residual water, it is possible to maintain sterilization, remove Methylobacterium in water that has been sown after replacement, and prevent it from occurring. Attack the pink slime that has fallen. As a result, it is possible to maintain even more "cleanliness" and greatly reduce the time and effort required for cleaning.

Here, it is more preferable that the effective chlorine concentration of the wash water after it has landed on the first area of the wash floor 520 is 0.8 ppm or more.
Another item of high customer demand for the bathroom 500 is measures against black mold. Among these, there is a particularly high demand for suppressing the generation of black mold in the drain port 521 and the trap where keratin, which is the cause of black mold, tends to collect and accumulate after the user takes a bath. By setting the effective chlorine concentration of the wash water that lands on the first area including the counter 530 and the drain port 521 to 0.8 ppm or higher, it is possible to remove black mold in addition to methylobacterium.

Further, it is more preferable that the nozzle part 10a, which is the cleaning means, has a concentration increasing means (for example, a salt addition device 23) for increasing the effective chlorine concentration in the cleaning water generated by the removal device 20b (see FIG. 18). ). In this case, the control unit 30 can perform a high-concentration removal process in which sterilization and replacement are performed on the entire floor surface of the washing place floor 520 by controlling the concentration increasing 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 (there are many stain-causing bacteria) or in bathrooms that have not been used for a long time, there is a possibility that methylobacterium and black mold exist on the entire washing area floor 520 (black mold is floating in the air). Since the washing water sprayed in the pink slime suppression step S3 has a low effective chlorine concentration, it cannot kill Methylobacterium and black mold under such circumstances. Therefore, in order to cope with such a situation, by preparing a high-concentration removal process, it is possible to sterilize methylobacterium and black mold in bathrooms with many users or bathrooms that have not been used for a long time. can be done.

The following three graphs are used for the explanation of the above effects.
FIG. 20 is a graph showing the relationship between the sterilization time for black mold and pink slime after generation in a bathroom and the amount of water sprayed for each effective chlorine concentration. According to this, it can be confirmed that there is a trade-off relationship between black mold and pink slime sterilization time and water sprinkling amount. It can also be confirmed that the higher the effective chlorine concentration, the shorter the black mold and pink slime sterilization time, or the less water spraying can be done.
However, even if the effective chlorine concentration after watering is 1 ppm, the amount of watering is not significantly reduced, that is, a reasonable amount of watering is still required.
As in the present embodiment, carrying out the pink slime suppression step S3 using washing water in which bacteria have been killed before watering is very effective in terms of water saving.
FIG. 21 is a graph showing concentration attenuation after watering for each available chlorine concentration. As shown in FIG. 21, even if the available chlorine concentration before watering is 1 ppm, the available chlorine concentration after landing on the water drops significantly due to the concentration attenuation during watering in the bathroom.
When it is attempted to achieve an effective chlorine concentration of 0.4 ppm after landing in the entire bathroom 500 by spraying washing water over the entire bathroom 500 (sprinkling distance of about 2 m), as shown in FIG. The concentration should 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 (means for increasing the concentration is required).
FIG. 22 is a graph showing the death time of Methylobacterium at available chlorine concentrations. As shown in FIG. 22, when the effective chlorine concentration is 0.4 ppm, Methylobacterium is almost instantaneously killed. That is, it is possible to suppress the occurrence of pink slime by replacing residual water with washing water of the concentration in the pretreatment (before attenuation) before watering. (Conversely, it can be said that Methylobacterium survives at an available chlorine concentration of 0.3 ppm.)

<Effect of black mold suppression process>
The bathroom 500 of this embodiment includes a washing space floor 520 constituting a washing space of the bathroom 500, a drain port 521 provided in the washing space floor 520 for draining residual water on the washing space floor 520, and the surroundings of the washing space floor 520. It comprises bathroom walls 541 to 544 rising from the wall, washing means having a nozzle portion 10a for spraying washing water on the washing place floor 520, and a control portion 30 for controlling the nozzle portion 10a of the washing means. Then, the control unit 30 controls the nozzle unit 10a to sprinkle washing water so that the keratin that causes black mold remaining on the floor 520 of the washing area is discharged from the floor 520 of the washing area to the drain port 521. Suppression process S1 is implemented.
Further, in the black mold suppressing step S1, the washing water sprayed from the nozzle part 10a removes the keratin of the washing place floor 520, while the removed keratin accumulates on the corners between the circumference of the washing place floor 520 and the bathroom walls 541 to 544. Don't let it flow.
According to this embodiment, by performing the black mold suppressing step S1 of removing keratin that causes black mold remaining on the floor of the washing place 520, keratin on the floor of the washing place 520 can be significantly reduced, and in turn, the keratin on the floor of the washing place can be reduced. The growth of mold on the floor 520 can be significantly suppressed.

When performing the black mold suppressing step S1, it is important to strip off the keratin remaining on the floor 520 of the washing area and remove all of it in the drain port 521 . When this keratin removal is performed only by sprinkling water, it is important that the keratin reaches the drain port 521 without redepositing it on the floor surface of the washing place floor 520 .
In addition, even if the keratin can be removed by spraying water to remove the keratin from the washing space floor 520, the washing water sprayed from the nozzle portion 10a is oriented in one direction and sprayed in one direction. When reaching the corners of a certain washing space floor 520 and the bathroom walls 541 to 544, the keratin stripped off collides with the corners and accumulates on the corners, thereby suppressing the occurrence of black mold on the washing space floor 520. However, there is a problem that black mold generation at the corner cannot be sufficiently suppressed.
According to the cleaning apparatus 100 of the present embodiment, the washing water sprayed from the nozzle portion 10a in the black mold suppressing step S1 removes the keratin of the washing place floor 520, while the removed keratin is removed around the washing place floor 520 and the bathroom wall 541. 544, it is possible to suppress the occurrence of black mold not only on the floor 520 of the washing area but also on the corners.

In addition, the control unit 30 of the present embodiment controls the nozzle unit 10a to prevent the dead skin cells removed from the washing floor 520 from reattaching to the washing floor 520 by sprinkling more washing water. It is preferably adapted to perform a preventive watering step.
Even if the keratin is stripped off by the sprayed washing water, the keratin contained in the washing water may re-adhere to the floor 520 of the washing area in the process of flowing to the drain port 521 . For this reason, in order to prevent the keratin removed from the washing place floor 520 from re-adhering to the washing place floor 520, a re-adhesion prevention sprinkling step of further sprinkling cleansing water is performed, whereby the keratin re-adheres more reliably. It can be prevented, and the keratin can be reliably removed from the washing place floor 520. - 特許庁

In addition, as shown in FIG. 23, 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 floor 520 of the washing place and removes the keratin from the floor 520 of the washing place. and a second flowing water for conveying the keratin peeled off from the washing place floor 520 to the drain port 521. - 特許庁FIG. 23 is a schematic diagram showing the flowing state of the first flowing water (first wave) and the second flowing water (second wave) in this embodiment.

Even if the keratin is stripped off by the sprayed washing water, the keratin 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 drops. , especially in the vicinity of the drain port 521, etc., it is likely to re-adhere to the floor 520 of the washing place. For this reason, the first flowing water for first coming into contact with the keratin remaining on the washing place floor 520 and peeling off the keratin from the washing place floor and the first flowing water for conveying the keratin peeled off from the washing place floor to the drain port 521 2 It is effective to spray (flow) the water separately.
If only the first flowing water for stripping off the keratin is used to suppress the redeposition of the keratin to the floor of the washing place due to the decrease in the water level accompanying the diffusion of the washing water in the flow process to the drain port 521, a large amount of washing water is required. It is necessary to spray water all at once so as not to cause redeposition of keratin due to a drop in the water level. If the first flowing water and the second flowing water are separated, and the first flowing water is sprinkled to peel off the keratin, and the second flowing water is sprinkled to convey the peeled keratin, the result is less With the amount of washing water, the keratin can be removed from the floor 520 of the washing place and discharged to the drain port 521 without fail.

In addition, in this embodiment, the first fluidized water flows over a predetermined portion of the floor of the washing place 520, and the second fluidized water is applied after a predetermined time has passed since the arrival of the first fluidized water. It is designed to flow over the predetermined portion.
If the first fluid water and the second fluid water are sprayed at the same time, the purpose of separating and controlling the two waters is not utilized. It is not preferable because it becomes easy to re-adhere. Therefore, it is effective to moderately control the time between both waterings. In this embodiment, the first fluidized water flows over a predetermined portion of the washing place floor 520, and the second fluidized water flows over the predetermined portion after a predetermined time has elapsed since the first fluidized water arrived. Since it is made to flow, it is possible to reliably prevent redeposition of keratin with a small amount of washing water while having a simple structure.

Further, in the present embodiment, the flow speed of the second flowing water toward the drain port 521 on the predetermined portion is faster than the flow speed of the first flowing water toward the drain port 521, and the second flowing water flows toward the drain port 521. By the time it reaches the port 521, it merges with the first flowing water.
As the water outlet 521 is approached, the water level drops due to the diffusion of the first flowing water, making it easier for the keratin to reattach. Therefore, rather than controlling the time from the arrival of the first flowing water to the arrival of the second flowing water at each part of the washing space floor 520 to be constant, the time is shortened as it approaches the drain port 521, and furthermore, the time reaches the drain port 521. It is effective to let them catch up and join in front. As a result, it is possible to effectively compensate for the lowering of the water level due to the diffusion of the first flowing water, and to more reliably prevent reattachment of keratin.

Further, the nozzle part 10a of the present embodiment is configured to rotate around an axis perpendicular to the floor 520 of the washing place, and the rotation of the nozzle part 10a is controlled by the control unit 30, thereby causing the nozzle part 10a to rotate on the predetermined part. , the flow speed of the second flowing water toward the drain port 521 is adjusted to be faster than the flow speed of the first flowing water toward the drain port 521 .
That is, by controlling the feed speed of the rotation of the nozzle part 10a, the flow speed of the first flowing water toward the drain port 521 and/or the flow speed of the second flowing water toward the drain port 521 can be controlled relatively easily. Therefore, it is possible to relatively easily adjust the delay time between the two and the confluence position of the two.

In addition, in the present embodiment, when the control unit 30 causes the cleaning water to land on an area far from the nozzle unit 10a, the nozzle unit 30 is more likely to cause the cleaning water to land on an area near the nozzle unit 10a. The rotation of the nozzle portion 10a is controlled such that the rotational speed of the nozzle portion 10a is low.
As the water spraying distance increases, the flow rate of the sprayed cleansing water decreases. In order to compensate for this tendency, the longer the watering distance is, the lower the rotation speed is and the more the amount of water is sprinkled. Each can be optimized.

<Effect of controlling watering from both sides of the drain>
The bathroom 500 of this embodiment includes a washing space floor 520 constituting a washing space of the bathroom 500, a drain port 521 provided in the washing space floor 520 for draining residual water on the washing space floor 520, and the surroundings of the washing space floor 520. bathroom walls 541 to 544 rising from the bottom, washing means having a nozzle portion 10a provided on one side of the bathroom 500 and rotating while spraying washing water on the floor 520 of the washing place, and control for controlling the nozzle portion 10a of the washing means. a portion 30; Then, the control unit 30 controls the nozzle unit 10a to sprinkle washing water so that the keratin that causes black mold remaining on the floor 520 of the washing area is discharged from the floor 520 of the washing area to the drain port 521. Suppression process S1 is implemented.
Further, by controlling the rotation of the nozzle portion 10a in the black mold suppressing step S1, 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. By controlling the washing process (first half black mold suppressing process) and the rotation of the nozzle part 10a, the landing position of the washing water sprayed from the nozzle part 10a moves from the other side of the bathroom 500 toward the drain port 521. The second washing process (the latter half of the black mold suppression process) is to be carried out.

When performing the black mold suppressing step S1, it is important to strip off the keratin remaining on the floor 520 of the washing area, and to reliably transport the keratin to the drain port 521 while preventing reattachment of the keratin to the floor surface of the floor 520 of the washing area. be. For this purpose, when simple watering is used, dead skin cells may be collected and deposited at the corners between the peripheral edge of the floor 520 and the bathroom walls 541 to 544, and may not be reliably transported to the drain port 541. be.

According to the present embodiment, this problem can be reliably solved by devising a method of sprinkling cleaning water. Specifically, the nozzle part 10a that sprays washing water onto the floor 520 of the washing place while rotating is employed, and the rotation of the nozzle part 10a is controlled so that the washing water that is sprayed from the nozzle part 10a lands on the position. is moved from one side of the bathroom 500 toward the drain outlet 521, and the rotation of the nozzle portion 10a is controlled so that the washing water sprayed from the nozzle portion 10a reaches another position in the bathroom 500. By performing the second washing step of moving from the side toward the drain port 521 , the dead skin cells can be reliably transported to the drain port 521 .

In the present embodiment, the first cleaning process (black mold suppression process in the first half) ends in a state in which the landing position of the cleaning water sprayed from the nozzle portion 10 a includes the drain port 521 . As a result, the stripped keratin is reliably discharged to the drain port 521, and the stripped keratin is prevented from exceeding the drain port 521 and accumulating on the corners.

In addition, a region (second cleaning region) that is not cleaned in the first cleaning step (black mold suppression step in the first half) is separated and cleaned in the second cleaning step (black mold suppression step in the second half), thereby obtaining a second cleaning region. The keratin of the skin is also reliably discharged to the drain port 521 in the same manner.

In this way, by adopting a simple form of spraying water to separate and wash up to the drain port 521, the cleaning device 100 of the present embodiment reliably transports the floor to the drain port 521 while reliably stripping off the keratin remaining on the floor surface. This prevents keratin from accumulating on the corners between the floor surface of the washing place floor 520 and the bathroom walls 541-544.

In addition, the washing space floor 520 of the present embodiment has a substantially rectangular shape in a plan view, a counter 530 is installed on the first side of the washing space floor 520, and the nozzle part 10a is arranged on the counter 530 side. The drain port 521 is arranged on the third side, which is one of the two sides of the washing space floor 520 excluding the first side and the second side opposite to the first side.
In this way, by not arranging the nozzle portion 10a and the drain port 521 on the same side, it is possible to effectively prevent the dead skin from accumulating on the corners. When the nozzle portion 10a and the drain port 521 are arranged on the same side, the dead skin cells are scraped off and collected by washing, and even if the cleaning is stopped at the drain port position, the dead skin cells are deposited on the corners of the first side. The risk of getting caught will be higher. In this embodiment, such a risk is reduced by devising the arrangement as described above.
In particular, by arranging the nozzle portion 10a on the counter 530 side (first side), the exfoliation performance is enhanced. Specifically, when the body is washed, a large amount of keratin remains in front of the counter 530, but by arranging the nozzle portion 10a on the first side, a large amount of washing water can be secured, and the keratin can be removed. Stripping can be performed more reliably.
Furthermore, when the drain port 521 is arranged on the second side, the drain port 521 faces the direction in which the cleaning water is sprayed from the nozzle portion 10a. , there is a high risk that keratin deposits (residues) on the second side due to the force of the sprayed washing water. In this case, it becomes difficult to reliably transport the keratin to the drain port 521 . On the other hand, in this embodiment, by arranging the drain port 521 on the side of the third side, it is possible to reliably guide the keratin to the drain port 521 without accumulating (remaining) it in any of the corners. can.

The nozzle part 10a of the present embodiment is arranged in the middle between the third side and the fourth side opposite to the third side, but is arranged on the side of the fourth side with respect to the middle. may
Washing water containing a large amount of exfoliated keratin finally reaches around the drain port 521 . Further, the wash water diffuses in the process of flowing from the upstream, and the water level and flow velocity decrease downstream. Due to these factors, keratin tends to reattach to the floor surface around the drain port 521 . In consideration of this tendency, by arranging 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 port. If oriented, it is easy to directly wash the area around the drain port 521 where keratin tends to reattach. It is also easy to increase the force that pushes the keratin. As a result, redeposition of keratin around the drain port 521 can be effectively suppressed.

In addition, the first cleaning step (black mold suppression step in the first half) of the present embodiment includes a state in which part of the cleaning water sprayed from the nozzle portion 10a lands on the drain port 521, and the second cleaning step ( The latter half of the black mold suppression step) also includes a state in which part of the washing water sprayed from the nozzle portion 10 a lands on the drain port 521 .
As described above, the keratin scraped up by the washing water tends to accumulate around the drain port 521, and the risk of black mold is high. Also, when the spraying of cleansing water is stopped around the drain port 521 , although the discharge of cleansing water to the drain port 521 is enhanced, there remains a concern that part of the keratin reattaches to the periphery of the drain port 521 . Therefore, in both the first washing process and the second washing process, a portion of the washing water is made to land directly on the drain port 521. In other words, the periphery of the drain port 521 where keratin tends to reattach is carefully washed twice. By washing, residual keratin can be more effectively suppressed.

In addition, in the first washing step (first half of the black mold suppressing step) of the present embodiment, the landing positions of the washing water sprayed from the nozzle portion 10a are the first side, the fourth side, and the fourth side of the washing place floor 520. In the second washing process (the latter black mold suppressing process), the landing position of the washing water sprayed from the nozzle part 10a is the above-mentioned position on the floor 520 of the washing place. It moves in order of the 1st edge|side and the said 3rd edge|side. After the first cleaning process is performed, the second cleaning process is performed.
When the first washing process and the second washing process are performed stepwise with a time lag, when one washing area is finished washing, part of the washing water containing dead skin cells spreads over the other washing area. As a result, there is a risk that the keratin contained in a part of the washing water will re-adhere to the other washing area. Furthermore, if the time between the end of one cleaning process and the start of the other cleaning process is long, the risk of the cleaning water draining and the keratin reattaching to the floor 520 of the washing place increases. Therefore, a short time between two washing steps is desirable. Therefore, as in the present embodiment, 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 redeposition of keratin can be reduced by pre-determining differences in areas and washing a wider area first.

Further, in the present embodiment, the floor surface of the floor 520 of the washing area is provided with a drainage gradient toward the drainage port 521 . Therefore, it is preferable to first wash the fourth side, which is the opposite side of the drain port 521 . In this case, the washing water that has landed on the side of the fourth side can flow vigorously toward the drain port 521 due to the drainage gradient, and can be splashed into the area to be washed only in the second washing process. No problem arises since two washing steps are performed later. On the other hand, the washing water sprayed in the second washing process can also scatter into the area to be washed only in the first washing process. low.

Note that, before the first cleaning process is performed, a first side cleaning process may be performed in which the landing position of the cleaning water sprayed from the nozzle portion 10a is maintained on the first side of the washing place floor 520. .
A large amount of dead skin remains around the counter 530, and especially behind the counter 530, the dead skin tends to accumulate. Therefore, the first side cleaning step for cleaning the first side is performed separately, so that the keratin is expelled from the first side to each cleaning area 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.

Further, in the present embodiment, the number of nozzle portions 10a is one, and the control portion 30 stops sprinkling of washing water from the nozzle portions 10a after the first washing step (or may reduce the amount of washing water). ), the nozzle portion 10a is rotated to the starting position of the second cleaning process, and then the second cleaning process is performed.
The first cleaning process and the second cleaning process can also be performed separately from the respective nozzle sections by providing two nozzle sections. For example, water can be sprinkled simultaneously so as to sandwich the drain port 521 from both sides. However, providing two nozzle sections is costly. According to the present embodiment, it has been confirmed that substantially the same effect as that provided with two nozzle portions can be achieved even with one nozzle portion. That is, after the first cleaning step is performed, the spraying of cleaning water from the nozzle portion 10a is stopped (or the amount is reduced), and the nozzle portion 10a is rotated to the starting position of the second cleaning step, and then the second cleaning step is performed. High exfoliation performance can also be achieved by implementing. The reason for stopping or reducing the amount of washing water after the first washing step is not only to save water but also to prevent the exfoliated keratin from being transported to the first side (second washing area).

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

In order to achieve such a replacement rate, according to the knowledge obtained by the inventors from various experiments, the control unit 30 is set to 0.4 to 4.0 L per unit time when the black mold suppression step S1 is performed. /min of tap water from the nozzle part 10a onto the floor 520 of the washing place. It is preferable that low-concentration sterilized water is sprayed onto the floor 520 of the washing place from the nozzle part 10a at a spray rate of 0.2 to 2.0 L/min. According to the verification by the present inventor, in the mutual comparison between the amount of tap water sprinkled per unit time in the black mold suppression step S1 and the sprinkled amount of low-concentration sterilized water per unit time in the pink slime suppression step S3, , the latter can be less than the former. A high replacement rate can be achieved when such a balance of the water sprinkling amount per unit time is adopted.

From another point of view (according to another parameter), according to the knowledge obtained by the inventors of the present invention, the control unit 30 controls the amount of 0.05 to 0.5 L/ It is preferable that the tap water is sprayed from the nozzle part 10a onto the floor 520 of the washing place with a spray amount of cm ² It is preferable that low-concentration sterilized water is sprayed onto the washing place floor 520 from the nozzle part 10a at a spraying rate of 0.06 to 0.6 L/cm ² . A high replacement rate can be achieved when such a balance of the amount of water sprayed per unit area is adopted.

From another point of view (according to another parameter), according to the knowledge obtained by the inventors of the present invention, the control unit 30 controls the total amount of water of 0.8 to 8.0 L when performing the black mold suppression step S1. It is preferable that tap water is sprayed from the nozzle part 10a onto the floor 520 of the washing place with the amount of water sprayed. It is preferable that low-concentration sterilized water is sprayed onto the floor 520 of the washing place from the nozzle part 10a with a spray amount of 10.0L. According to the verification by the inventor of the present invention, in the mutual comparison between the total amount of water sprinkled with tap water in the black mold suppression step S1 and the total amount of water sprinkled with low-concentration sterilized water in the pink slime suppression step S3, the latter can be less than the former. A high substitution rate can be achieved when such a total water balance is employed.

From a different point of view (according to another parameter), according to the knowledge obtained by the inventors of the present invention, the control unit 30, when performing the black mold suppression step S1, has a flow velocity of 0.8 to 8.0 m/s It is preferable that the tap water is sprinkled from the nozzle part 10a onto the floor 520 of the washing place. It is preferable that low-concentration sterilized water is sprayed onto the floor 520 of the washing area from the nozzle part 10a at m/s. A high replacement rate can be achieved when such a balance of flow rates is employed.

From a different point of view (according to another parameter), according to the knowledge obtained by the inventors of the present invention, the control unit 30, when performing the black mold suppressing step S1, controls the It is preferable that tap water is sprinkled on the floor 520 of the washing place. It is preferable that low-concentration sterilized water is sprinkled thereon. A high substitution rate can be achieved when such a balance of particle sizes is employed.

An example of suitable watering conditions described above is collectively shown in FIG.

In addition, as described above, in order to suppress the occurrence of black mold, it is effective not to leave keratin on the floor of the washing place 520 (remove it). Therefore, when the black mold suppression step S1 is carried out, the control unit 30 sprays tap water from the nozzle unit 10a onto the floor 520 of the washing space, so that the keratin on the floor 520 of the washing space is removed together with the tap water. It is preferable that the Specifically, for example, if there is information about the amount (or tendency to remain) of keratin in each area on the floor 520 of the washing area, it is desirable to use such information when performing the black mold suppression step S1. For example, for areas with a large amount of keratin remaining (or a high tendency to remain), increase the amount of tap water sprinkled per unit area, or increase the amount of tap water sprinkled per unit time. Modifications such as increasing the total amount of water or increasing the flow rate of tap water are effective.

In addition, in order to more reliably replace tap water with low-concentration sterilized water, the control unit 30 performs the black mold suppression step as shown in FIGS. It is preferable that low-concentration sterilizing water is sprayed from the nozzle part 10a over a wider area than the area over which the tap water was sprinkled on the floor 520 of the washing place when S1 was carried out. This can be realized by, for example, controlling the flow rate of the low-concentration sterilizing water when spouting to be higher than the flow rate of tap water when spouting.

<Pause control in front of the drain>
According to further studies by the present inventor, in the black mold suppressing step S1, at a position before the area where tap water is sprayed from the nozzle portion 10a reaches the drain port 521, the rotation of the nozzle portion 10a is temporarily stopped, or Alternatively, it is preferable to decelerate the average rotation speed of the nozzle part 10a in the rotation area including the position to a very low speed (for example, about 1 to 3°/s).

When such control is adopted, as shown in FIG. 27, the state in which the tap water sprayed from the nozzle portion 10a is flowing to the drain port 521 can be temporarily maintained. As a result, the keratin on the washing place floor 520 can be effectively washed away to the drain port 521 .

FIG. 28 is a schematic diagram showing a time chart in the black mold suppressing step S1 employing temporary stop control before the drain port.

As shown in FIG. 28, the control unit 30 of the present embodiment causes the area where the tap water is sprayed from the nozzle unit 10a to be a drain port 521 during the rotation of the nozzle unit 10a from the fourth position P4 to the second position P2. At the position P5 before approaching the tip, the rotation of the nozzle part 10a is temporarily stopped by extending the stop time of the electric motor 17 (for example, about 20 seconds). As a result, it is possible to temporarily maintain the state in which the tap water sprayed from the nozzle portion 10a flows to the drain port 521 as a stream.

Further, at a position P5 before the area where the tap water is sprayed from the nozzle portion 10a reaches the drain port 521, the tap water forms an acute angle θ (for example, 5 to 85°) with respect to the second wall 542 in plan view. If the tap water lands on the second wall 542, the tap water lands on the second wall 542 becomes a reflected water flow reflected by the second wall 542 and flows to the drain port 521, and further the nozzle part 10a rotates. Since this state is temporarily maintained by pausing (or decelerating) the washing area floor 520, the keratin on the washing floor 520 can be washed away to the drain port 521 more effectively.

Similarly, according to further studies by the present inventors, even in the pink slime suppression step S3, the area where the low-concentration sterilizing water is sprayed from the nozzle part 10a is at a position before reaching the drain port 521, and the nozzle part 10a It is preferable to temporarily stop the rotation, or to decelerate the average rotation speed of the nozzle part 10a in the rotation area including the position in question to a very low speed.

When such control is adopted, similarly, as shown in FIG. 28, the state in which the low-concentration sterilizing water sprayed from the nozzle portion 10a becomes a stream and flows to the drain port 521 is temporarily maintained. be able to. As a result, the tap water on the washing place floor 520 can be effectively washed away to the drain port 521 .

FIG. 29 is a schematic diagram showing a time chart in the pink slime suppression process employing temporary stop control in front of the drain.

As shown in FIG. 29, the control unit 30 of the present embodiment causes the nozzle unit 10a to spray the low-concentration sterilizing water during the rotation of the nozzle unit 10a from the fourth position P4 to the second position P2. At a position P5 before reaching the mouth 521, the rotation of the nozzle part 10a is temporarily stopped by extending the stop time of the electric motor 17 (for example, about 40 seconds). As a result, it is possible to temporarily maintain the state in which the low-concentration sterilizing water sprayed from the nozzle portion 10a flows to the drain port 521 as a stream.

Also here, at the position P5 before the area where the low-concentration sterilizing water is sprayed from the nozzle part 10a reaches the drain port 521, the low-concentration sterilizing water is at an acute angle θ (for example, 5 to 85. Furthermore, this state is temporarily maintained by temporarily stopping (or decelerating) the rotation of the nozzle portion 10a, so that the tap water on the washing floor 520 can be washed away to the drain port 521 more effectively.

<Utilization of Wall Reflected Water>
The bathroom 500 of this embodiment described above includes a washing space floor 520 constituting a washing space of the bathroom 500, a drain port 521 provided in the washing space floor 520 for draining residual water on the washing space floor 520, Bathroom walls 541 to 544 rising from the periphery of the floor of the washing place, washing means having a nozzle part 10a provided on one side of the bathroom 500 for spraying washing water in the bathroom 500, and the nozzle part 10a of the washing means are controlled. A control unit 30 is provided. Then, the control unit 30 controls the nozzle unit 10a to spray washing water so that the keratin that causes black mold remaining on the floor 520 of the washing area is discharged from the floor 520 of the washing area to the drain port 521. Suppression process S1 is implemented.
Further, in the black mold suppressing step S1, the washing water sprayed from the nozzle part 10a removes the keratin of the washing place floor 520, while the removed keratin accumulates on the corners between the circumference of the washing place floor 520 and the bathroom walls 541 to 544. Don't let it flow.
In this embodiment, at least part of the washing water sprayed from the nozzle portion 10a in the black mold suppressing step S1 also lands on the bathroom walls 541 to 544. The washing water that lands on the bathroom walls 541 to 544 is reflected in the direction of the drain port 521 by collision with the bathroom walls 541 to 544 to generate wall-surface-reflected water. While the keratin deposited on the corners of the walls 541 to 544 is stripped off, the keratin that has been stripped off flows to the drain port 521 .

According to such an embodiment, by performing the black mold suppressing step S1 of removing keratin that causes black mold that remains on the floor of the washing space 520, keratin on the floor of the washing space 520 can be significantly reduced. As a result, it is possible to remarkably suppress the generation of mold on the floor 520 of the washing place.

When performing the black mold suppressing step S1, it is important to strip off the keratin remaining on the floor 520 of the washing area and remove it completely through the drain port 521. FIG. When this keratin removal is performed only by sprinkling water, it is important that the keratin reaches the drain port 521 without redepositing it on the floor surface of the washing place floor 520 .
Here, if a plurality of nozzle portions are set at different angles so as to point toward the drain port 521, it is considered effective to effectively remove dead skin cells without leaving any dead skin cells. However, such a solution requires installation of a plurality of nozzles in the bathroom 500, which poses a space problem, and the water supply piping for each nozzle is complicated, resulting in high cost and impractical.
As in this embodiment, it is common to set a single nozzle portion 10a on one side of the bathroom 500. In this case, all of the washing water sprayed from the nozzle portion 10a is It is not easy to orient it to the right direction, and a situation may occur in which the keratin is driven to the wall of the bathroom 500 by the force of the sprayed washing water, and as a result, black mold may occur.
Specifically, keratin may accumulate on the corners between the surroundings of the floor 520 of the washing area and the walls 541 to 544 of the bathrooms due to showering and pouring hot water. When water is sprayed from one side to remove the accumulated keratin, the force of stripping the keratin from the corners cannot be applied in all directions, and at least part of it is pressed against the corners by the force of water spraying. It works like this. Even when water is sprinkled on the floor surface from which the keratin is to be removed, the keratin stripped from the floor surface by the water spray may act to be actively deposited on the corners.
The inventor of the present invention is excellent in that the method of sprinkling washing water from one side of the floor 520 of the washing place can skillfully remove dead skin cells without increasing the cost, and does not drive and collect dead skin cells near the wall. This is the one that discovered the sprinkling form.
Specifically, part of the washing water sprayed from the nozzle portion 10a is sprayed so as to actively collide with the wall. With such a simple configuration, it is possible to change the direction of the washing water sprayed from the nozzle portion 10a that is not directed toward the drain port 521 toward the drain port 521 . In other words, by simply adopting the reflection by the bathroom wall 500, the sprayed cleansing water flows in the direction of the drain port 521 to remove the dead skin cells and guide the removed dead skin cells to the drain port 521. made possible. This wall-reflected water can peel off the keratin at the corners between the surroundings of the washing space floor 520 and the bathroom walls 541 to 544 (at the walls of the washing space floor 520) by falling from the walls, and the keratin deposits at the corners. Also, the dead skin cells can be reliably drained to the drain port 521 .

Further, in this 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 part of the washing water sprayed from the nozzle portion 10a lands on the bathroom wall 542 on the counter 530 side. At least another part of the sprayed washing water is designed to land on bathroom walls 541, 543, and 544 different from the bathroom wall 542 on the counter 530 side, and landed on the bathroom wall 542 on the counter side. The water force of the wall surface reflected water generated by the wash water is higher than the water force of the wall surface reflected water generated by the wash water that has landed on the bathroom walls 541, 543, and 544 that are different from the bathroom wall on the counter side. .

The most keratin remains on the counter 530 side where people wash their bodies. Also, at this site, the keratin may be firmly attached to the floor surface by being stepped on by the user. Therefore, by providing the nozzle portion 10a on the counter 530 side, it is possible to maintain a high flow of washing water for washing the washing place floor 520 on the counter 530 side. As a result, even firmly stuck keratin can be reliably removed.

In addition, in this embodiment, the nozzle part 10a is designed to spray washing water onto the bathroom walls 541 to 544 and the washing floor 520 while rotating, and the washing water sprayed onto the washing floor 520 advances. It is designed to collide with the wall surface reflection water generated by the washing water that is sprinkled and landed on the bathroom walls 541 to 544, and directly hits the corners between the surroundings of the washing space floor 520 and the bathroom walls 541 to 544. is disabled.

Since the washing water reflected by the walls is diffused by the reflection, a high degree of washing control is required to reliably remove dead skin cells over the entire surface of the washing place floor 520 so that no dead skin cells remain. In addition, when washing water is sprinkled from one side of the washing space floor 520, the force of the washing water toward the corner facing the one side collides (perpendicularly) with the bathroom wall, so that the keratin is pressed against the corner. action will occur. Therefore, not only the keratin on the corners is removed by the wall surface reflected water, but also the washing of the floor 520 of the washing place is performed by the washing water that lands on the floor 520 of the washing place. In order not to press the keratin on the corners, the keratin is removed from the corners by colliding with the wall-reflected water generated by the washing water that has been sprinkled and landed on the bathroom walls 541 to 544. Exfoliation of the floor can be ensured. In addition, since it is sufficient to arrange only one nozzle portion 10a, the cost can be greatly reduced, and construction is easy.

Further, the nozzle portion 10a of the present embodiment has a nozzle opening that is longer in the vertical direction than in the horizontal direction.

For example, when washing water is sprayed while the nozzle portion 10a is rotating, the angles of reflection by the bathroom walls 541 to 544 change successively. In this way, if the sprayed washing water blocks the reflection of the reflected water from the wall, which changes the angle of reflection, it may lead to poor exfoliation at the corners or reduce the force that presses the dead skin cells against the corners. It may work. That is, it is preferable that the bathroom walls 541 to 544 reflect light stably in any situation.
Therefore, by adopting the nozzle openings 11a and 12a that are longer in the vertical direction than in the horizontal direction, it is effective to stabilize the spraying position narrowly. As a result, it is possible to suppress the influence of the change in the angle of reflection of the wall-reflected water, and it is possible to stably remove dead skin cells. In addition, water can be sprayed on the bathroom walls 541 to 544 and on the washing space floor 520 at the same time with one nozzle portion 10a. Furthermore, one nozzle part 10a is also responsible for the control of causing the wash water that lands on the washing place floor 520 to collide with the wall-reflected water generated by the wash water that was sprayed first and landed on the bathroom walls 541 to 544. Therefore, the timing of watering can be stabilized and can be carried out reliably. Therefore, it is possible to more reliably prevent the action of pressing the keratin against the corner.

<Utilization of water spray that does not overtake the reflected water on the wall>
From another point of view, the bathroom 500 of the present embodiment described above has a washing space floor 520 that constitutes the washing space of the bathroom 500, and a washing space floor 520 for draining residual water on the washing space floor 520. A washing means having a drain outlet 521, bathroom walls 541 to 544 rising from the periphery of the floor of the washing place, and a single nozzle part 10a provided on one side of the bathroom 500 and rotating to sprinkle washing water on the floor 520 of the washing place. and a control unit 30 for controlling the nozzle unit 10a of the washing means. A black mold suppressing step S1 of sprinkling washing water so as to be discharged from the floor 520 of the washing place to the drain port 521 is carried out.
Then, in the black mold suppression step S1, the washing water sprayed from the single nozzle portion 10a at the same time is applied to the first water landing portions that land on the lower portions of the bathroom walls 541 to 544 and on the floor surface of the washing place floor 520. and a second landing portion on which water is landed.
The first water landing part is reflected by the lower part of the bathroom walls 541 to 544 to generate wall surface reflected water, and the wall surface reflected water is redirected in the direction of the drain port 521 to reach the floor of the washing area. While removing keratin remaining on the floor surface of the floor 520, it flows on the floor surface of the washing place floor 520 toward the drain port 521. - 特許庁
Further, when the black mold suppressing step S1 is performed, the control unit 30 controls the wall-surface reflected water generated by the first landing portion of the washing water sprayed at the predetermined first time to flow on the floor surface of the washing place floor 520. In the process of flowing, the wall-reflected water follows the flowing area so that the wall-reflected water is not overtaken by the second landing portion of the washing water to be sprayed at a predetermined second time thereafter. control the rotation of the nozzle portion 10a.

According to such an embodiment, by performing the black mold suppressing step S1 of removing keratin that causes black mold that remains on the floor of the washing space 520, keratin on the floor of the washing space 520 can be significantly reduced. As a result, it is possible to remarkably suppress the generation of mold on the floor 520 of the washing place.

When performing the black mold suppressing step S1, it is important to strip off the keratin remaining on the floor 520 of the washing area and remove it completely through the drain port 521. FIG. When this keratin removal is performed only by sprinkling water, it is important that the keratin reaches the drain port 521 without redepositing it on the floor surface of the washing place floor 520 .
Here, if a plurality of nozzle portions are set at different angles so as to point toward the drain port 521, it is considered effective to effectively remove dead skin cells without leaving any dead skin cells. However, such a solution requires installation of a plurality of nozzles in the bathroom 500, which poses a space problem, and the water supply piping for each nozzle is complicated, resulting in high cost and impractical.
As in this embodiment, it is common to set a single nozzle portion 10a on one side of the bathroom 500. In this case, all of the washing water sprayed from the nozzle portion 10a is It is not easy to orient it to the right direction, and a situation may occur in which the keratin is driven to the wall of the bathroom 500 by the force of the sprayed washing water, and as a result, black mold may occur.
The inventor of the present invention is excellent in that the method of sprinkling washing water from one side of the floor 520 of the washing place can skillfully remove dead skin cells without increasing the cost, and does not drive and collect dead skin cells near the wall. We discovered a form of sprinkling.
Specifically, part of the washing water sprayed from the nozzle portion 10a is sprayed so as to actively collide with the wall. With such a simple configuration, it is possible to change the direction of the washing water sprayed from the nozzle portion 10a and not directed toward the drain port 521 toward the drain port 521 . In other words, by simply adopting the reflection by the bathroom wall 500, the sprayed cleansing water flows in the direction of the drain port 521 to remove the dead skin cells and guide the removed dead skin cells to the drain port 521. made possible. This wall-reflected water can peel off the keratin at the corners between the surroundings of the washing space floor 520 and the bathroom walls 541 to 544 (at the walls of the washing space floor 520) by falling from the walls, and the keratin deposits at the corners. Also, the dead skin cells can be reliably drained to the drain port 521 .
Furthermore, the inventors of the present invention have found that it is also effective to control the rotation of the nozzle portion 10a, particularly the rotation speed. Since the wall-reflected water flows first on the floor 520 of the washing area, it can contain the most remaining keratin. By sprinkling water so as not to overtake this, it is possible to prevent the removed keratin from returning to the area where washing has been completed and re-adhering to the area. By further sprinkling washing water onto the washing place floor 520 in such a manner, exfoliation of dead skin cells can be enhanced. As a result, even with a single nozzle portion 10a, the wash floor 520 can be kept "clean" for a long time.

Further, the control unit 30 of the present embodiment changes the second landing portion of cleansing water sprayed during the second time after the first time to the first water landing portion of cleansing water sprayed during the first time. By merging the wall-reflected water generated by the nozzle part 10a without overtaking it, the wall-reflected water compensates for the diffusion and water level drop that occur in the process of flowing on the floor surface of the washing place floor 520. It is designed to control rotation.
The washing water sprinkled on the floor 520 of the washing place spreads while flowing on the floor 520 of the washing place, and the water level inevitably drops. Due to such a decrease in water level, it is possible that dead skin cells that have been painstakingly removed will re-adhere to the floor of the washroom. Therefore, the second water landing part is made to land at a later time so that the wall-reflected water generated by the first water landing part that has landed earlier is joined (chased, followed) without overtaking. Also, by controlling the rotation of the nozzle portion 10a, the exfoliation property can be improved. In particular, redeposition of keratin can be effectively suppressed by suppressing a decrease in water level accompanying diffusion.

Further, the control unit 30 of the present embodiment causes the second water landing portion of the cleansing water to be sprayed during the second time after the first time to be the first water landing portion of the cleansing water to be watered during the first time. The rotation of the nozzle part 10a is controlled in such a way that the water reflected on the wall surface is joined without overtaking the water reflected on the wall surface, and the driving force is applied to flow the water reflected on the wall surface in the direction of the drain port 521. .
Giving a driving force means maintaining or increasing the velocity of the wall-reflected water (drainage flow) after merging. In this case, it is possible to increase the feeding speed to the drain port 521 for the keratin, which may be contained in the wall-surface reflected water. If the moving speed is low, not only does the exfoliating power of the keratin decrease, but also the reattachment of the keratin increases. can.

Further, the control unit 30 of the present embodiment is configured to change the rotation speed of the nozzle unit 10a at a predetermined position.
The reflected power of the washing water changes depending on the angle of reflection by the bathroom walls 541-544. Further, when the watering distance is long, the watering energy is low, the force reflected by the wall is also low, and the flow speed of the wash water after landing is low. By adjusting the rotation speed of the nozzle part 10a and adjusting the amount of water sprayed in accordance with such a tendency, the ability to remove dead skin cells and the anti-redeposition performance can be maintained or improved.

Furthermore, the control unit 30 of the present embodiment, when causing the cleaning water to land on an area far from the nozzle part 10a, causes the nozzle part 10a to reach a larger area than when causing the cleaning water to land on an area closer to the nozzle part 10a. The rotation speed of the nozzle portion 10a is controlled such that the rotation speed of the nozzle portion 10a is low.
When the watering distance is long, the watering energy is low and the force reflected by the wall is also low, resulting in a low flow velocity of the wash water after landing. By adjusting the rotation speed of the nozzle portion 10a and adjusting the amount of water sprayed in accordance with such a tendency, the ability to remove dead skin cells and the anti-redeposition performance can be maintained or improved.

<Effect of pulsating flowing water>
The washing apparatus 100 of the present embodiment described above is a bathroom floor washing apparatus that constitutes the washing area of the bathroom 500 and cleans the washing area floor 520 having the drain port 521. and a control unit 30 for controlling the nozzle portion 10a. Then, the control unit 30 controls the nozzle unit 10a to sprinkle washing water so that the keratin that causes black mold remaining on the floor 520 of the washing area is discharged from the floor 520 of the washing area to the drain port 521. Suppression process S1 is implemented.
In the present embodiment, during the black mold suppression step S1, the washing water sprayed on the floor 520 of the washing place is discharged through the drain port 521 so that the energy for peeling off the keratin adhering to the floor 520 of the washing place is generated by the rising energy of the waves. It is designed to flow while generating continuous waves.

When performing the black mold suppressing step S1, it is important to strip off the keratin remaining on the floor 520 of the washing area and remove all of it in the drain port 521 . When the keratin is removed only by spraying water, if the keratin adheres to the floor 520 of the washing place, it is necessary to take measures such as spraying a large amount of washing water. However, spraying a large amount of cleansing water is disadvantageous in terms of cost, and there is also a problem in terms of convenience in that entry into the bathroom 500 must be restricted for a long period of time because it is not possible to enter the bathroom 500 during cleaning. .
After many years of research, the inventor of the present invention has found a technique for neatly stripping off the keratin adhering to the washing place 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 dead skin re-adheres to the floor of the washing place during the transportation process in which the dead skin is peeled off and discharged to the drain port 521 .
Specifically, this embodiment is characterized in that the washing water sprayed on the floor 520 of the washing place flows while generating continuous waves during the process of reaching the drain port 521 . Due to the generation of amplitude accompanying the generation of waves, energy is generated upward with respect to the floor surface of the floor of the washing space 520 . With this rising energy, keratin adhering to the floor 520 of the washing place can be peeled off from the floor 520 of the washing place. Once the keratin is removed from the floor 520 of the washing area, it floats on the surface of the water or is contained in the water. That is, for the stratum corneum, the contribution of the rising energy is significantly greater than that of the waves.
In short, by generating waves (pulsations), it is possible to skillfully and cleanly peel off dead skin cells. Moreover, it is particularly effective to continuously generate this wave in the process up to the drain port 521 . As a result, keratin can be removed evenly over the entire surface of the washing place floor 520, and rising energy can be continuously applied to the peeled keratin, so that redeposition of keratin to the washing place floor 520 can be more reliably suppressed. .
30A and 30B are schematic diagrams showing how waves carry keratin, FIG. 30A is a schematic plan view, and FIG. 30B 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 floor 520 of the washing place, and first lands on the keratin to peel off the keratin from the floor 520 of the washing place. part (to become the first flowing water: see FIG. 23), and a second water landing part (to become the second flowing water: see FIG. 23) that lands on the passing portion of the washing place floor 520 of the first water landing part. ,have.
In the present embodiment, when the black mold suppressing step S1 is performed, the control unit 30 causes the first water landing portion to move to the second landing portion during the process of the first water landing portion flowing through the passage portion of the washing place floor 520. The rotation of the nozzle portion 10a is controlled so that the driving force in the direction toward the drain port 521 is increased by being joined by the water portion.
In the bathroom 500, the water level of the washing water drops as the sprayed washing water spreads over the washing floor 520 while moving toward the drain port 521 on the washing floor 520. - 特許庁This lowering of the water level causes keratin to come into contact with the floor 520 of the washing area, making it easier for the keratin to reattach (see FIG. 31). According to this embodiment, the water level can be raised by the confluence. In other words, not only the rising energy of the waves but also the effect of increasing the water level can enhance the effect of preventing redeposition of dead skin cells.
Furthermore, in this embodiment, it is possible to reliably create wave rising energy. That is, when the second water landing portion joins the first water landing portion, the rotational speed of the nozzle portion 10a is increased so that the second water landing portion increases the driving force toward the drain port 521 with respect to the first water landing portion. is controlled, the second landing portion joins the first landing portion so as to gain momentum, and the rising energy of the waves of the first landing portion can be reliably generated (see FIG. 32). As a result, the first water landing portion can strip off more keratin, and the keratin on the floor of the washing space can be removed more efficiently.

Furthermore, in the present embodiment, the washing water sprayed from the nozzle portion 10a in the black mold suppressing step S1 is joined by the second water landing portion and then is joined to the second passage portion of the washing floor 520 of the first water landing portion. It further has a third landing portion that lands on the water. Then, when performing the black mold suppression step S1, the control unit 30, in the process in which the first water landing portion after being joined by the second water landing portion flows through the second passage portion of the washing place floor 520, The rotation of the nozzle portion 10a is controlled so that the first water landing portion is further joined by the third water landing portion and the propulsive force in the direction toward the drain port 521 is further increased (Fig. 33).

In this embodiment, the rising energy of waves can be produced more reliably. That is, when the third water landing portion joins the first water landing portion after being joined by the second water landing portion, the third water landing portion is propelled toward the drain port 521 with respect to the first water landing portion. By controlling the rotation speed of the nozzle part 10a to further increase the force, the third water landing part joins the first water landing part with increasing momentum, and the wave of the first water landing part can more reliably produce the rising energy of As a result, the first water landing portion joined by the second water landing portion and the third water landing portion can strip off more keratin, and the keratin on the floor of the washing space can be removed more efficiently. Furthermore, after that, the waves from the fourth landing portion onwards are sequentially merged, and the rising energy of the wave of the first landing portion may be generated more reliably.

In addition, as shown in FIG. 30(b), the washing place floor 520 of this embodiment has grooves 522 extending in a direction non-parallel to the direction in which the first or second water landing portion lands on water. is formed.
As a result, when the sprayed washing water (first or second landing portion) collides with the floor 520 of the washing place or flows on the floor 520 of the washing place, the washing water collides with the grooves 522 to Vertical waves (water pulsations) are formed. Such turbulent flow of water makes it easier for the keratin to peel off from the washing place floor 520 . In addition, even when the wash water spreads over the floor of the washing place 520 and flows, the waves suppress reattachment of keratin to the floor. As a result, the keratin can be reliably removed from the floor even if the sprayed washing water has a small force or a small amount of water.

Further, when the control unit 30 of the present embodiment causes the second water landing portion to land on the bathroom wall 541 facing the nozzle portion 10a from the nozzle portion 10a, the rotation speed of the nozzle portion 10a is low. Thus, the rotation of the nozzle portion 10a is controlled.
When the watering distance is long, the watering energy is reduced, and the flow speed of the wash water after landing is low. By adjusting the rotation speed of the nozzle part 10a in accordance with such a tendency, particularly the tendency of the second water landing part, it becomes easier to adjust the formation of continuous waves due to merging into the first water landing part, It is possible to maintain or improve the keratin removal power and anti-redeposition performance.

<Effect of generating large waves and small waves>
Further, in this embodiment, the continuous waves include at least two types of waves: small waves with relatively small amplitudes and large waves with relatively large amplitudes.

According to this embodiment, the small waves mainly act as waves for preventing redeposition, and the large waves act as waves that generate a large force to peel off dead skin cells from the floor surface. For example, by optimizing the location where large waves are generated, it is possible to target locations where keratin tends to accumulate. As a result, it is possible to effectively remove the keratin that is difficult to remove with the rising energy of the small waves, thereby further enhancing the keratin removal performance.

Further, in this embodiment, small waves (mainly caused by the pulsation of the stepping motor) and large waves (mainly caused by the confluence of the flowing water) are superimposed and generated. The sprayed washing water flows in such a way that small waves occur more frequently than large waves in the course of reaching the drain port 521 .

In the mode in which the cleansing water is simply flowed on the floor surface of the washing place floor 520 , it may be difficult to remove dead skin cells, and the peeled dead skin cells are likely to adhere to the washing space floor 520 again. Therefore, it is effective to prevent redeposition of dead skin cells by making the frequency of small waves higher than that of large waves and generating small waves so frequently that they can be said to be continuous, as in the present embodiment. On the other hand, on the periphery of the washing place floor 520 where keratin tends to accumulate, it may be difficult to peel off by sprinkling washing water alone due to strong adhesion. By creating large waves to match such areas, dead skin cells can be removed more reliably.

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

Further, in the present embodiment, in the black mold suppressing step S1, the washing water sprayed from the nozzle portion 10a at the same time is applied to the first water-receiving portion that lands on the lower portions of the bathroom walls 541 to 544 and the washing-place floor 520. and a second water landing portion that lands on the floor surface, and the first water landing portion is reflected by the lower part of the bathroom walls 541 to 544 to generate wall surface reflected water, The wall-reflected water is changed in direction toward the drain port 521 and flows on the floor surface of the washing space floor 520 toward the drain port 521 while removing dead skin cells remaining on the floor surface of the washing space floor 520 . ing.
Then, when performing the black mold suppression step S1, the control unit 30 causes the wall-reflected water generated by the first landing portion of the washing water sprayed at the predetermined first time to flow on the floor surface of the washing space floor 520. In the process of washing, the wall-reflected water is joined by the second landing portion of the wash water sprayed at a predetermined second time thereafter, and a driving force is applied to move in the direction of the drain port 521. The rotation of the nozzle portion 10a is controlled so as to follow the flow area of the wall-reflected water. The large wave is generated by the confluence of the wall-reflected water and the second landing portion of the washing water sprayed at the predetermined second time.
According to this embodiment, by simply adopting the reflection from the bathroom walls 541 to 544, the sprayed cleansing water reliably flows toward the drain port 521 to remove dead skin cells and drain the removed dead skin cells. It is possible to lead to mouth 521 . Due to this wall surface reflected water, the keratin can be reliably drained to the drain port 521 without accumulating the keratin near the wall of the washing place floor 520.例文帳に追加
The keratin tends to accumulate on the corners of the rim of the washing space floor 520 and the bathroom walls 541 to 544, and it is difficult to generate a force to remove the keratin accumulated on the corners by spraying water. However, since the wall-reflected water flows so as to strip off the keratin, the keratin can be removed even in areas such as corners where the keratin is difficult to remove.
In addition, the wall-reflected water is joined by the second landing part of the washing water sprayed at a predetermined second time thereafter, and a driving force is added to move in the direction of the drain port 521, so that the keratin can be reliably removed. The keratin can be transported to the drain port 521 and removed, and reattachment of keratin can be prevented.
Furthermore, the confluence of the wall-reflected water and the second landing portion of the washing water sprayed at the predetermined second time causes a large wave to be generated, so that the large wave is reliably generated at the target position. The keratin can be effectively removed even in areas where the keratin can be generated and is difficult to remove. The technique is also relatively easy because it is sufficient to control the feed speed of the rotation of the nozzle portion 10a so as to match the merging timing.
In the bathroom 500, the water level of the washing water drops as the sprayed washing water spreads over the washing floor 520 while moving toward the drain port 521 on the washing floor 520. - 特許庁This lowering of the water level causes keratin to come into contact with the floor 520 of the washing area, making it easier for the keratin to reattach. According to this embodiment, the water level can be raised by the confluence. In other words, not only the rising energy of the waves but also the effect of increasing the water level can enhance the effect of preventing redeposition of dead skin cells.

The rotation of the nozzle portion 10a in this embodiment is driven by a stepping motor, as described above. The small waves are generated by applying minute speed changes to the rotation of the nozzle portion 10a due to speed changes of the stepping motor.
Generally, it is not easy to control the superposition of small waves and large waves. In particular, large waves require detailed design or control because they require timing matching. However, since the small waves have a property that it is sufficient if they are generated substantially continuously in order to prevent redeposition of keratin, they are preferably generated by a simple configuration.
In this embodiment, since the stepping motor is driven by one step, the speed is automatically (mechanically) changed each time the stepping motor is advanced one step. In other words, it is an intermittent feed scheme. Even if the speed change of the stepping motor is minute and cannot be visually recognized, when it is magnified by the rotation of the nozzle part 10a, it is greatly magnified at the water landing position and can appear as a large speed change. Then, the speed change may produce a change in the amount of water sprayed at the landing position, and small waves may be generated.
That is, if a stepping motor is used as in the present embodiment, small waves can be generated simply by automatically feeding the nozzle portion 10a. In other words, a practically useful small wave can be easily generated by a mechanical configuration in which a stepping motor is employed and the minute vibration is magnified by the nozzle portion 10a.

Moreover, as described above with reference to FIG. 27 and the like, the nozzle portion 10a of the present embodiment is preferably designed to stop rotating at a predetermined position and then rotate again.
In order to optimize the merging timing in all areas of the wall-reflected water flowing on the washing floor 520 in the direction of the drain port 521, there may be areas where the nozzle part 10a must be rotated very slowly. This is because the flow velocity of wall-reflected water is slow in areas where the reflectivity is weak. It is not easy to control the rotation of the nozzle part 10a very slowly, that is, if water is sprinkled in the process of slowly moving, it is likely to merge at the wrong timing, and the keratin may even return to the upstream side. . Therefore, by temporarily stopping the feed, the timing optimization control can be performed more easily and accurately.

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

In addition, when the control unit 30 of the present embodiment causes the cleaning water to land on an area far from the nozzle part 10a, the nozzle part 10a is more likely to land on an area closer to the nozzle part 10a than when the cleaning water is caused to land on an area near the nozzle part 10a. The rotation speed of the nozzle portion 10a is controlled so that the rotation speed of the nozzle portion 10a is low (see FIGS. 8 to 11, 28 and 29).
It is preferable that the predetermined position is a position corresponding to the corner portion of the washing place floor 520 where the cleansing water lands (see FIG. 27).
In a region where the water spray distance is long, the flow velocity of the wall-reflected water is also low because the flow velocity of the washing water is low. Furthermore, at the four corners of the washing floor 520, the washing water can be reflected by two walls. In addition, keratin tends to accumulate at the corners of the four corners, and it is important to discharge the keratin well from the corners, so as to avoid backtracking at the second landing part of the washing water that is sprayed with a delay. Should.
At such corners, it is preferable to stop the rotation of the nozzle portion 10a to encourage the wall-reflected water to slowly flow toward the drain port 521, and furthermore, the wall-reflected water should flow sufficiently toward the drain port 521. It is also effective in avoiding return of the wash water to the corner portion to merge the second water-landing portion of the wash water that is sprayed later.
If the rotation of the nozzle part 10a is stopped and the merging is delayed, there is a possibility that the re-adhesion of keratin due to the lowering of the water level may increase. It has been confirmed that re-adhesion does not occur due to a drop in water level even if the time is delayed.

In addition, the washing floor 520 of this embodiment is provided with a drainage gradient toward the drainage port 521 . The predetermined position is a position corresponding to the corner portion of the washing place floor 520, which is located downstream of the drainage gradient, where the washing water lands. It may be preferable to pause or decelerate at a position corresponding to another corner of the wash floor 520 upstream of the gradient for a time shorter than the stop time at the predetermined position. be.
The keratin collected from the upstream side tends to accumulate at the corner portion on the downstream side, for example, the side where the drain port 521 is set. Also, the corner portion is the area where the drainage slope ends, where the washing water collides with the wall and the speed becomes zero, and then it moves further in the lateral direction and advances to the drainage port 521 . Therefore, the cleansing water splashes due to the collision with the wall, and the flow is slow. preferably after it begins to traverse to the 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 washing water containing the keratin and scattered can be removed cleanly by the second washing water landing portion, which is sprayed with a delay.
Also, for the upstream corners, it is necessary to temporarily stop or decelerate for a shorter time than the stop time at the position corresponding to the downstream corners, in order to improve the exfoliation performance. preferable.

<Measures against dirt on the nozzle>
In the above embodiment, when the black mold suppressing step S1 is started, the nozzle part 10a is at a position (initial position P1 ), the rotation of the nozzle portion 10a is started. Therefore, even if the nozzle portion 10a is soiled when the black mold suppressing process is started, the effect of the temporary disturbance of the tap water spouting direction caused by the soiling is almost perpendicular to the second wall 542. Since the dirt is immediately blown away by the tap water and disappears, it does not appear when the water is discharged to the center of the washing space floor 520 thereafter. Therefore, even if the nozzle part is temporarily soiled, the water discharge control of the black mold suppressing step S1 to the central part of the washing place floor 520 can be performed as designed.

According to the inventors of the present invention, the initial position for starting the execution of the black mold suppression step S1 is not limited to a position where tap water can be landed substantially vertically toward the second wall 542. The above effect can be obtained as long as tap water can be landed within a range of ±10° centering on the portion closest to the portion 10a.

Moreover, when the counter 530 is provided adjacent to a part of the bathroom wall as in this embodiment, the nozzle part 10a is preferably arranged below the counter 530 . In this case, since the nozzle portion 10a is hidden by the counter 530, the nozzle portion 10a is prevented from being soiled by dregs such as soap and shampoo used for washing the human body. At this time, the shortest distance between the second wall 542 and the nozzle portion 10a is, for example, within 80 cm.

Moreover, as in the present embodiment, the nozzle portion 10a is preferably arranged at a position lower than the height of the bathtub wall. In this case, if the direction of tap water or low-concentration sterilizing water discharged from the nozzle portion 10a is designed to be horizontal or less, the tap water or low-concentration sterilizing water discharged from the nozzle portion 10a will flow beyond the bathtub wall. You can't go inside.

<Relationship with door>
Also, the bathroom 500 generally further includes an entrance and a door for opening and closing the entrance. When the black mold suppressing step S1 is performed, the control unit 30 causes tap water from the nozzle unit 10a to land on the area in front of the door on the floor of the washing space 520, and does not spray the door, and When performing the pink slime suppression step S3, it is preferable that the low-concentration sterilizing water is made to land on the floor of the washing place 520 in front of the door from the nozzle part 10a, and the door is not sprayed with water.

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

10a nozzle part 10x rotating shaft 11a first nozzle opening 12a second nozzle opening 13 water storage part 14a first water storage part 14b second water storage part 17 motor 20 low-concentration sterilized water generator 30 control unit (watering control unit, rotation control unit )
30a execution condition changing means 30b manual changing means 35 operation unit 51 water supply pipe 52 hot water supply pipe 53a, 53b strainer 54a first solenoid valve 54b second solenoid valve 55 pressure regulating valve 56 check valve 57 vacuum breaker 100 washing device 500 bathroom 510 bathtub 520 Washing place floor 521 Drain port 530 Counter 531 Top plate 532 Lower cover 541-544 1st wall to 4th wall

Claims (2)

A bathroom washing space floor cleaning device for washing a washing space floor having a drain port, comprising:
washing means for spraying first washing water made of tap water or low-concentration sterilized water and second washing water from which methylobacterium has been removed onto the floor of the washing place;
a rotating part that rotates the cleaning means;
a control unit that controls the cleaning means and the rotating unit;
an operation unit operable by a user,
The control unit
a black mold suppressing step of discharging keratin remaining on the floor of the washing place into the drain port by spraying the first washing water;
a pink slime suppression step of replacing residual water remaining on the floor of the washing place with the second wash water, and
By controlling the cleaning means,
a black mold suppressing step of sprinkling the washing water so that keratin that causes black mold remaining on the floor of the washing space is discharged from the floor of the washing space into the drain port;
a pink slime suppression step of sprinkling the washing water so that the residual water containing methylobacterium remaining on the floor of the washing place is replaced with the washing water from which the methylobacterium has been removed. has become
In order to change the water discharge flow rate in the black mold suppressing step, the control unit includes a first mode in which a predetermined flow rate is discharged, a second mode in which the water discharge rate is less than the first mode, and a water discharge rate lower than the first mode. A third mode with a large water discharge flow rate can be selected according to a signal operated by the operation unit ,
The control unit
The first mode continues for a preset predetermined time, the second mode continues for a time shorter than the predetermined time in the first mode, and the third mode continues for a time longer than the predetermined time in the first mode. It is configured to change the water discharge flow rate by selecting and
The control unit
The duration of the first mode, the second mode, and the third mode is configured to be changed by changing the rotation speed of the rotating part.
A cleaning device for a bathroom floor, characterized by: The control unit
2. The bathroom according to claim 1 , wherein even when any one of the first mode, the second mode, and the third mode is set, the water discharge flow rate in the pink slime suppression step is not changed. Cleaning equipment for washing floors.

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