JP7392781B2 - bathroom - Google Patents

Description

The present invention relates to a bathroom.

A sterilizing water discharge device is known that discharges sterilizing water toward the washing area floor of a bathroom (Patent Document 1). It is also known that in such a sterilized water discharge device, electrolyzed water such as hypochlorous acid water produced by electrolyzing flowing water (tap water) can be used as the sterilized water to be discharged. It is being By using such electrolyzed water as sterilizing water, there is no need to prepare or replace a cartridge for storing detergent, etc., and it is very easy to use, compared to the case where detergent is used, for example.

On the other hand, when electrolyzed water such as hypochlorous acid water is used as sterilizing water, the electrolyzed water has the property of sterilizing bacteria and returning to water when it comes into contact with bacteria. Therefore, in order to sterilize the surface of the washing area floor, it is important to allow electrolyzed water to land directly on the surface of the washing area floor.

Japanese Patent Application Publication No. 2009-178470 Patent No. 5371337

However, the washing area floor often has sebum stains and the like that have been washed off from the bodies of bathroom users adhering to its surface. In particular, if the surface of the washroom floor is made hydrophilic to improve drainage, sebum also tends to spread widely over the surface, making it easier for sebum stains to adhere to the surface. Since the surface of the washing area floor is covered with sebum stains, the discharged electrolyzed water cannot directly land on the surface. From this, when a user removes sebum stains by cleaning the bathroom with a sponge or brush, for example, the bacteria that breed using the sebum stains as nutrients cause dark spots on the surface of the bathroom floor where the sebum stains were removed. The problem is that this has occurred. That is, even if electrolyzed water is discharged toward the washing area floor, there is still a possibility that dark spots may occur on a part of the surface of the washing area floor.

SUMMARY OF THE INVENTION An object of the present invention is to provide a bathroom in which electrolyzed water can easily come into contact with the surface of a washroom floor hidden in sebum stains.

The bathroom of the first invention is a bathroom equipped with an electrolyzed water discharge device capable of discharging electrolyzed water having a sterilizing effect toward a washing area floor, and the surface of the washing area floor is arranged so that the washing area floor is exposed to the atmosphere. In the electrolyzed water discharging device, the oil contact angle, which is the contact angle of the oil droplets when 1 μL of oil droplets made of oleic acid are present on the surface while being held horizontally at room temperature, is 16° or more. The electrolyzed water is characterized in that the downward discharge angle with respect to the horizontal direction is 0° or more and 16° or less.
According to the first invention, electrolyzed water can be discharged obliquely toward the surface of the washing area floor at a discharge angle that is sharper than the oil contact angle of the washing area floor. The electrolyzed water sharply discharged from an oblique direction tends to get between the sebum dirt and the surface of the washing area floor 520. Therefore, it becomes easier for the electrolyzed water to come into contact with parts of the surface of the washing area floor that are hidden by sebum stains, and as a result, the surface of the washing area floor can be thoroughly sterilized.
Although the surface of the washing area floor is made hydrophilic, the oil repellency should not be too low (oil contact angle α should be 16° or more) to suppress the spread of sebum stains on the surface and allow sebum stains to adhere widely to the surface. You can avoid it. Then, by discharging the electrolyzed water at a sharp discharge angle (0° or more and 16° or less) that is less than the oil contact angle, the electrolyzed water can be penetrated between the sebum stain and the surface of the washing area floor.
The electrolyzed water that has entered between the sebum stains and the surface of the washing area floor has a sterilizing effect on the surface of the washing area floor, and then returns to water, making it easier for the sebum stains to be discharged into the drain along with the water. . As a result, an effect unexpected by those skilled in the art was created, in that sebum stains are less likely to come into contact with the surface of the washroom floor that has been sterilized.
In a second invention, in the first invention, the surface of the washing area floor is inclined, and the electrolyzed water discharge device is configured to supply the electrolyzed water to the washing area so that the electrolyzed water enters from below on the inclined surface of the washing area floor. The water is discharged so as to land at an angle of 0° or more and 16° or less with respect to the floor surface.
According to the second aspect of the invention, sebum stains adhering to the surface of the inclined washroom floor tend to be inclined in the direction of inclination due to gravity. In this state, the electrolyzed water is discharged so that it enters from below on the sloped surface of the washing area floor and lands on the surface of the washing area floor at a landing angle of 0° or more and 16° or less. . This allows the electrolyzed water to more effectively penetrate between the sebum stain and the surface of the washing area floor.
A third invention is based on the second invention, further comprising an operation part that discharges electrolyzed water when operated by the user, and when the operation part is operated, the tap water that is not electrolyzed water is first tilted. After discharging the electrolyzed water at a downward discharge angle of 0° or more and 16° or less with respect to the horizontal direction, the electrolyzed water enters from below on the sloped surface of the washing place floor. , the discharge is performed at a downward discharge angle of 0° or more and 16° or less with respect to the horizontal direction.
According to the third invention, tap water has the effect of separating sebum stains from the surface of the washing area floor, and electrolyzed water has the effect of entering between the sebum stains and the surface of the washing area floor to sterilize the surface of the washing area floor. can be made to Therefore, it is possible to prevent the electrolyzed water from unnecessarily contacting sebum stains in order to separate the sebum stains from the surface of the washing area floor, and it is possible to cause the electrolyzed water to act more effectively on the surface of the washing area floor.
A fourth invention is based on the third invention, when the operation part is operated, tap water that is not electrolyzed water is first directed downward in the horizontal direction so that it enters from below on the sloped surface of the washing area floor. After discharging at a discharge angle of 0° or more and 16° or less, the electrolyzed water and tap water are not discharged until a predetermined time has elapsed, and after the predetermined time has elapsed, the electrolyzed water is discharged onto the surface of the slanted washing area floor. It is characterized in that the liquid is ejected at a downward ejection angle of 0° or more and 16° or less with respect to the horizontal direction so as to enter from below.
According to the fourth invention, if the electrolyzed water is discharged onto the washing area floor immediately after the tap water lands on the washing area floor, the concentration of the sterilizing component of the electrolyzed water will be reduced by the remaining tap water. It gets diluted. Therefore, after discharging tap water onto the washing area floor, the electrolyzed water and tap water are not discharged until a predetermined time has elapsed, and after that predetermined time has elapsed, the electrolyzed water is discharged toward the washing area floor. Electrolyzed water can be effectively applied to the surface of the washing area floor.
A fifth invention is characterized in that in the third or fourth invention, the tap water that is not the electrolyzed water is discharged not only onto the washing area floor but also onto an inner wall of a bathroom forming a bathroom.
According to the fifth invention, the tap water can be inserted between the sebum stain and the surface of the washing area floor so as to sandwich the sebum stain from both sides, and the sebum stain can be more effectively separated from the surface of the washing area floor. I can do it.
In a sixth invention, in any one of the third to fifth inventions, the tap water that is not electrolyzed water is discharged at a downward discharge angle of 0° or more with respect to the horizontal direction, and the water landing position is It is characterized by water being spouted in a moving manner.
According to the sixth invention, it is possible to form a water flow that penetrates between sebum stains and the surface from various directions, and it is possible to more reliably float sebum stains.

According to the bathroom of the present invention, a bathroom is provided in which electrolyzed water can easily come into contact with the surface of the washing area floor hidden in sebum stains.

FIG. 1 is a system block diagram showing the overall configuration of a bathroom cleaning device according to an embodiment. FIG. 1 is a schematic perspective view of a bathroom according to an embodiment. FIG. 1 is a perspective view of an electrolyzed water discharge device according to an embodiment. FIG. 3 is a side view schematically showing a trajectory of discharged electrolyzed water until it lands in the embodiment. FIG. 3 is a schematic diagram showing the sterilization and cleaning action of the washing area floor in the embodiment. FIG. 3 is a schematic diagram showing the sterilization and cleaning action of the washing area floor in the embodiment. FIG. 3 is a schematic diagram showing the sterilization and cleaning action of the washing area floor in the embodiment. (a) is a water discharge time chart of electrolyzed water in the embodiment, and (b) is a water discharge time chart of tap water and electrolyzed water in the embodiment.

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

FIG. 1 is a system block diagram showing the overall configuration of a bathroom cleaning device 1 according to an embodiment.

The bathroom cleaning device 1 includes a power source 30, a control device 40, an operation section 35, and an electrolyzed water discharge device 100. The electrolyzed water discharge device 100 is installed on a bathroom counter.

FIG. 2(a) is a schematic perspective view of a bathroom 500 according to the embodiment.
FIG. 2(b) is an enlarged schematic perspective view of the vicinity of the counter 530 in the bathroom 500.

As shown in FIG. 2(a), the bathroom 500 is surrounded by four walls 541 to 544 and a ceiling 545. Inside the bathroom 500, a bathtub 510, a washing area floor 520, and a counter 530 are provided. Further, the bathroom 500 is appropriately equipped with a mirror, a faucet device, a hand shower, and the like.

A first wall 541 and a second wall 542 are provided on a pair of short sides of the bathtub 510 to face each other. A fourth wall 544 is provided on one long side of the bathtub 510. Opposing the fourth wall 544, a third wall 543 is provided on the washing area floor 520 side.

A drainage port 521 is provided on the washing area floor 520. In the example shown in FIG. 2A, the drain port 521 is located near the edge of the washing area floor 520 on the bathtub 510 side, and approximately at the center of the washing area floor 520 in the longitudinal direction.

On the surface (floor surface) of the washing area floor 520, there are holes extending toward the drain port 521 from an edge on the first wall 541 side, an edge on the second wall 542 side, and an edge on the third wall 543 side. A gentle downward slope (drainage slope) is provided.

Counter 530 is attached to second wall 542, for example. The counter 530 is installed spaced upward from the surface of the washing area floor 520. The counter 530 has a generally rectangular shape with long sides extending along the short sides of the washing area floor 520 when viewed from above.

As shown in FIG. 2(b), the counter 530 includes a top plate 531 and a cover 532 that covers the bottom of the top plate 531. The electrolyzed water discharging device 100 shown in FIG. 1 is housed inside a counter 530 surrounded by a top plate 531 and a cover 532, except for some elements (water stopcock 50, water spouting part 10).

The water spouting part (nozzle part) 10 is provided so as to protrude below the counter 530, as shown in FIG. 2(b). The water spouting section 10 is spaced apart from the surface of the washing area floor 520. Further, the water spouting section 10 is installed near the center of the counter 530 in the width direction (short direction). That is, the water spouting part 10 is installed on one end side in the longitudinal direction of the washing area floor 520 and near the center in the short side direction. The rotational operation of the water spouting section 10, which will be described later, at this position makes it easier to spout tap water and electrolyzed water over substantially the entire washing area floor 520.

The water stop valve 50 shown in FIG. 1 is connected to a water supply pipe through which tap water is supplied. The stopcock 50 is connected to a strainer 51. The downstream side of the strainer 51 is connected to a constant flow valve 52, and the downstream side of the constant flow valve 52 branches into two pipes 61 and 62.

One of the pipes 61 is provided with a solenoid valve 53 , and the downstream side of the solenoid valve 53 is connected to the first water spout 11 of the water spout section 10 . Further, for example, in a cold region, a drain valve 54 is connected between the electromagnetic valve 53 and the water spouting section 10 as necessary.

Connected to the other pipe 62 are, in order from the upstream side, a strainer 55, a solenoid valve 56, a pressure regulating valve 57, a check valve 59, an electrolyzed water generating section 20, a strainer 65, and a second water spout 12 of the water spout section 10. has been done. Further, a safety valve 58 is connected between the pressure regulating valve 57 and the check valve 59.

Further, the electrolyzed water discharging device 100 includes a motor (for example, a stepping motor) 66 that rotates (swivels) the water discharging section 10 . This motor 66 is also housed inside the counter 530.

The control device 40 controls the operations of the electromagnetic valve 53, the electromagnetic valve 56, the electrolyzed water generation section 20, and the motor 66. A power supply 30 supplies power to them. Further, the power supply 30 supplies power to the operation unit 35. The power supply 30 is installed, for example, behind the ceiling 545 of the bathroom 500, as shown in FIG. 2(a). The control device 40 is installed inside the counter 530 or behind the ceiling 545 of the bathroom 500.

The solenoid valve 53 is opened and closed under the control of the control device 40. When the solenoid valve 53 opens, tap water is spouted from the first spout 11. When the solenoid valve 53 is closed, tap water is not spouted from the first spout 11.

The solenoid valve 56 is opened and closed under the control of the control device 40. When the electromagnetic valve 56 opens, tap water is supplied to the electrolyzed water generating section 20, and the electrolyzed water generated in the electrolyzed water generating section 20 is spouted from the second spout 12. When the electromagnetic valve 56 is closed, electrolyzed water is not spouted from the second water spout 12 .

By controlling the pressure of tap water using the pressure regulating valve 57, the flow rate of tap water supplied to the electrolyzed water generation section 20 is adjusted. By adjusting the flow rate of the tap water supplied to the electrolyzed water generation section 20, the flow rate of the electrolyzed water spouted from the second water spout 12 is adjusted.

Moreover, the flow rate of tap water supplied downstream can be adjusted by the electromagnetic valves 53 and 56.

The electrolyzed water generation section 20 generates electrolyzed water. This electrolyzed water is sterilized water that has a sterilizing effect. The electrolyzed water generation unit 20 is, for example, an electrolytic cell having an anode and a cathode. By applying a voltage between the anode and the cathode to electrolyze the tap water flowing between the anode and the cathode, the tap water is denatured into electrolyzed water. Since tap water contains chloride ions, hypochlorous acid is produced by electrolyzing the chloride ions.

Hypochlorous acid has the ability to kill bacteria and further inhibit the growth of bacteria. Therefore, electrolyzed water is sterilized water that contains hypochlorous acid and has a sterilizing effect.

FIG. 3 is a perspective view of the water spouting section 10.

The water spouting part 10 is formed in a cylindrical shape, and a first water spout 11 and a second water spout 12 are provided on the lower side surface thereof. The first water spout 11 and the second water spout 12 are each formed in the shape of a vertically long slit.

The first water spout 11 and the second water spout 12 are arranged side by side in the circumferential direction of the cylindrical water spout 10 . Alternatively, the first water spout 11 and the second water spout 12 may be arranged side by side in the height direction.

From the first spout 11, tap water that is not electrolyzed water is spouted onto the washing area floor 520. From the second spout 12, the electrolyzed water (sterilized water) described above is spouted onto the washing area floor 520. Tap water or electrolyzed water can be temporarily stored in the cylindrical water spouting part 10, and the water spouting pressure can be increased.

Tap water that spreads out in a fan shape in the vertical direction (vertical direction) can be spouted from the vertically long first water spout 11. Electrolyzed water that spreads out in a fan shape in the vertical direction (vertical direction) can be spouted from the second water spout 12, which is also vertically long.

By driving the motor 66 described above, the cylindrical water spouting part 10 can be rotated around its central axis (indicated by a dashed line in FIG. 3), and the direction in which tap water or electrolyzed water is spouted can be changed. .

The washing area floor 520 has a base material made of, for example, FRP (Fiber Reinforced Plastic), and its surface is hydrophilic and oil-repellent.

The oil repellency of the surface of the washing area floor 520 here can be defined as follows.
As shown in FIG. 5(a), the contact angle of the oil droplet 300 when the washing area floor 520 is held horizontally at room temperature in the atmosphere and a 1 μL oil droplet 300 made of oleic acid is present on the surface. The oil contact angle α is 16° or more and 40° or less.

Further, the hydrophilicity of the surface of the washing area floor 520 can be defined as a contact angle between water and the surface of the washing area floor 520 of 0° or more and 50° or less.

FIG. 4 is a side view schematically showing the trajectory of the electrolyzed water discharged from the water spouting unit 10 until it lands on the water.

The water discharging unit 10 can discharge electrolyzed water obliquely toward the washing area floor 520. As described above, the electrolyzed water that is discharged in a fan-like manner in the vertical direction includes a discharge component whose downward discharge angle with respect to the horizontal direction is 0° or more and 16° or less.

FIG. 4 illustrates trajectories of three lines of electrolyzed water discharged at discharge angles of θ1, θ2, and θ3, which are discharge angles within a range of 0° or more and 16° or less. The discharge angle of electrolyzed water discharged in the horizontal direction (direction along the broken line in FIG. 4) is 0°.

Similar to electrolyzed water, the water discharging unit 10 can discharge tap water that is not electrolyzed water diagonally toward the washing area floor 520, and the tap water that is discharged in a fan-like manner in the vertical direction is directed downwardly with respect to the horizontal direction. Contains a discharge component whose discharge angle is 0° or more and 16° or less.

FIG. 8(a) is a water discharge time chart of electrolyzed water in the embodiment.

When the user operates the operating section 35 shown in FIGS. 1 and 2(a) (when the operating section 35 is turned ON), the operating section 35 transmits an execution command for discharging electrolyzed water to the control device 40. After receiving the execution command for discharging electrolyzed water from the operation unit 35, the control device 40 executes control so that the water discharging unit 10 discharges electrolyzed water for a period of time T1.

According to the embodiment, electrolyzed water can be discharged obliquely toward the surface of the washing area floor 520 at a discharge angle that is sharper (smaller) than the oil contact angle α of the washing area floor 520. The electrolyzed water sharply discharged from an oblique direction tends to get between the sebum dirt and the surface of the washing area floor 520.

Therefore, it becomes easier for the electrolyzed water to come into contact with parts of the surface of the washing area floor 520 that are hidden by sebum stains, and as a result, the surface of the washing area floor 520 can be thoroughly sterilized.

Although the surface of the washing area floor 520 is made hydrophilic, the oil repellency is not too low (the oil contact angle α is 16° or more), and the spread of sebum stains on the surface is suppressed, so that the sebum stains are spread over the surface. Can be prevented from adhering. Then, by discharging the electrolyzed water at a sharp discharge angle (0° or more and 16° or less) that is equal to or less than the oil contact angle, the electrolyzed water can be penetrated between the sebum stain and the surface of the washing area floor 520.

The electrolyzed water that has entered between the sebum stains and the surface of the washing area floor 520 has a sterilizing effect on the surface of the washing area floor 520 and then returns to water, and the sebum stains are directly discharged to the drain along with the water. It becomes easier. For this reason, an effect unexpected by those skilled in the art was also produced, in that sebum stains are less likely to come into contact with the surface of the washroom floor 520 that has been sterilized.

A drainage slope is formed on the surface of the washing area floor 520, and as shown in FIG. 5(b), the surface of the washing area floor 520 is inclined. The sebum stain 200 attached to the surface of the washroom floor 520 whose inclined surface is oil-repellent tends to be inclined in the direction of inclination due to gravity.

In this state, the electrolyzed water enters from below on the surface of the slanted washing area floor 520 at a landing angle β of 0° or more and 16° or less (the above-mentioned discharge angle (There is a complicated relationship with) This allows the electrolyzed water to more effectively enter between the sebum stain 200 and the surface of the washing area floor 520.

FIG. 8(b) is a water discharge time chart of tap water and electrolyzed water in the embodiment.

In this example, before electrolyzed water is discharged diagonally toward the wash floor 520, tap water that is not electrolyzed water is discharged diagonally toward the wash floor 520.

When the user operates the operating section 35 (when the operating section 35 is turned ON), first, tap water, which is not electrolyzed water, enters from below on the sloped surface of the washing area floor 520 as shown in FIG. 6(a). Discharge is performed at the above-mentioned discharge angle of 0° or more and 16° or less. After operating the operating section 35, tap water is first discharged from the water discharging section 10 for a time t1.

After a time t2 has elapsed after the tap water has been discharged, as shown in FIG. 6(b), the electrolyzed water is introduced from below onto the surface of the washing area floor 520 at the above-mentioned discharge angle of 0° or more and 16°. Discharge as follows. Electrolyzed water is discharged for a time t3 (=t1).

As a result, the tap water has the effect of separating the sebum stain 200 from the surface of the washing area floor 520, and the electrolytic water has the effect of sterilizing the surface of the washing area floor 520 by entering between the sebum stain 200 and the surface of the washing area floor 520. It can be made into water. Therefore, it is possible to prevent the electrolyzed water from unnecessarily contacting the sebum stain 200 in order to separate the sebum stain 200 from the surface of the wash area floor 520, and to make the electrolyzed water act more effectively on the surface of the wash area floor 520. be able to.

Further, the operation unit 35 is operated by the user, and after first discharging tap water, which is not electrolyzed water, at a discharge angle of 0° or more and 16° or less so that it enters the surface of the washing area floor 520 from below, for a predetermined period of time. Neither electrolyzed water nor tap water is discharged until t2 has elapsed. After the predetermined time t2 has elapsed, the electrolyzed water is discharged at a discharge angle of 0° or more and 16° or less so as to enter the surface of the washing area floor 520 from below.

If the electrolyzed water is discharged onto the washing area floor 520 immediately after tap water lands on the washing area floor 520, the concentration of the sterilizing component of the electrolyzed water will be diluted by the remaining tap water. Therefore, after discharging tap water onto the washing area floor 520, electrolyzed water and tap water are not discharged until a predetermined time t2 (for example, 30 seconds or more and 1 minute or less) has elapsed. By discharging water toward the washing area floor 520, the electrolyzed water can be applied to the surface of the washing area floor 520 more effectively.

Further, tap water that is not electrolyzed water is discharged not only onto the washing area floor 520 but also onto the inner wall of the bathroom forming the bathroom. Tap water for separating sebum stains from the surface of the washing area floor 520 is intentionally discharged not only onto the surface of the washing area floor 520 but also onto the inner wall of the bathroom forming the bathroom.

As shown in FIG. 7(a), the tap water discharged onto the inner wall of the bathroom flows along the downward slope of the surface of the sloped washing area floor 520, and the tap water is applied to the sebum stains 200 so as to sandwich the sebum stains 200 from both sides. and the surface of the washing area floor 520, and the sebum stain 200 can be more effectively separated from the surface of the washing area floor.

After the predetermined time has elapsed, as shown in FIG. 7(b), the electrolyzed water is discharged at the discharge angle of 0° or more and 16° or less so that it enters the surface of the washing area floor 520 from below, and the sebum It is caused to get between the dirt 200 and the surface of the washing area floor 520.

As described above, the water discharging unit 10 is rotated around its central axis (indicated by a dashed line in FIG. 3), and the direction in which tap water or electrolyzed water is discharged can be changed. Therefore, the tap water is discharged at a downward discharge angle of 0° or more with respect to the horizontal direction, and the water is discharged so that the landing position on the surface of the washing area floor 520 moves.

This makes it possible to form water currents that penetrate between the sebum stain and the surface from various directions, making it possible to more reliably lift the sebum stain.

If the discharge flow rate of electrolyzed water or tap water from the water spouting part 10 is slow, the electrolyzed water or tap water will land in a parabolic manner, making it difficult to obtain a landing angle that allows the water to easily get between sebum stains and the surface of the washing area floor. Become. Therefore, for example, the discharge flow rate of electrolyzed water from the water spouting part 10 is set to 9 (m/s) or more and 11 (m/s) or less, and the discharge flow rate of tap water from the water spouting part 10 is set to 5.6 (m/s). When set, electrolyzed water or tap water is discharged at a downward discharge angle of 0° or more and 40° or less with respect to the horizontal direction, so that the electrolyzed water or tap water can easily enter between sebum stains and the surface of the washing area floor.

Furthermore, the electrolyzed water and the tap water are each discharged in granular form. For example, the particle size of electrolyzed water is 800 (μm), and the particle size of tap water is 0.3 (mm) or more and 3.5 (mm) or less.

The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited thereto, and various modifications can be made based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1... Bathroom cleaning device, 10... Water discharge part, 20... Electrolyzed water generation part, 35... Operation part, 100... Electrolyzed water discharge device, 520... Washing place floor

Claims (5)

A bathroom equipped with a water discharge device capable of discharging sterilized water having a sterilization effect and tap water toward the washing area floor,
The surface of the washing area floor has an oil contact angle, which is the contact angle of the oil droplet when the washing area floor is held horizontally at room temperature in the atmosphere and a 1 μL oil droplet made of oleic acid is present on the surface. is 16° or more,
A downward discharge angle of the sterilized water with respect to the horizontal direction in the water discharge device is 0° or more and 16° or less,
The landing angle of the sterilizing water on the surface of the washing area floor is 0° or more and 16° or less,
A bathroom characterized in that the discharge angle and the water landing angle are smaller than the oil contact angle of the washing area floor. further comprising an operation unit that discharges the sterilized water and the tap water when operated by a user,
The surface of the washing area floor is sloped,
When the operation section is operated,
First , the tap water was discharged on the inclined surface of the washing area floor from a direction where the height of the washing area floor was low to a direction where the height of the washing area floor was high at a downward discharge angle of 0° or more and 16° or less with respect to the horizontal direction. rear,
Discharging the sterilizing water on the inclined surface of the washing area floor from a direction where the height of the washing area floor is low to a direction where the height of the washing area floor is high at a downward discharge angle of 0° or more and 16° or less with respect to the horizontal direction. The bathroom according to claim 1, characterized in that: When the operation section is operated,
First , the tap water was discharged on the inclined surface of the washing area floor from a direction where the height of the washing area floor was low to a direction where the height of the washing area floor was high at a downward discharge angle of 0° or more and 16° or less with respect to the horizontal direction. rear,
The sterilized water and the tap water are not discharged until a predetermined period of time has elapsed;
After the predetermined period of time has elapsed, the sterilizing water is discharged on the inclined surface of the washing area floor from a direction where the height of the washing area floor is low to a direction where the height of the washing area floor is high, at a downward discharge angle of 0° or more with respect to the horizontal direction, and 3. The bathroom according to claim 2, wherein the water is discharged at an angle of 16 degrees or less. 4. The bathroom according to claim 3, wherein the tap water is discharged not only onto the washing area floor but also onto an inner wall of the bathroom forming the bathroom. The bathroom according to claim 3 or 4, wherein the tap water is discharged at a downward discharge angle of 0° or more with respect to the horizontal direction, and the water is discharged so that the water landing position moves.