Toilet equipment

Abstract

To provide a technique capable of satisfactorily washing a toilet bowl part with a specific washing medium.SOLUTION: The toilet bowl device comprises: a toilet bowl body 14 having a toilet bowl part 12; and a discharge part 36A that discharges a washing medium containing washing foam into the toilet bowl part 12 from a discharge hole 34A to one side in a circumferential direction, wherein the washing medium is a specific washing medium composed of the washing foam, an alkaline liquid, or an acidic liquid, a left and right center line Lc1 that bisects left and right dimensions of an upper end opening of the toilet bowl part 12 and a front and rear center line Lc2 that bisects front and rear dimensions of the upper end opening are assumed in plan view, these lines divide the toilet bowl part 12 into four divided areas, and the discharge hole 34A is provided in a divided area Da1 when a front divided area adjacent to one side in the circumferential direction with respect to the front-rear center line Lc2 is the divided area Da1.SELECTED DRAWING: Figure 3

Description

Technical Field

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[0001] This disclosure relates to a toilet device.

Background Art

[0002] Patent Document 1 describes a toilet device including a toilet body having a toilet bowl portion. This toilet device includes a discharge portion that discharges a cleaning medium from a discharge hole to one side in the circumferential direction within the toilet bowl portion, and cleans the inside of the toilet bowl portion using cleaning foam as the cleaning medium.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] As a result of studying the prior art, the inventor of the present application obtained the following new recognition. A cleaning medium composed of any one of cleaning foam, an alkaline liquid, and an acidic liquid is referred to as a specific cleaning medium. The front central region (described later) of the toilet bowl portion is likely to be soiled by urine. Similarly, the rear central region (described later) of the toilet bowl portion is likely to be soiled by each of urine and feces. In order to keep such easily soiled portions clean, it is preferable to be able to easily deliver the specific cleaning medium to at least one of the front central region and the rear central region. No technique that has made such a contrivance in relation to the specific cleaning medium has been proposed yet.

[0005] One object of this disclosure is to provide a technique capable of satisfactorily cleaning a toilet bowl portion with a specific cleaning medium.

Means for Solving the Problems

[0006] The first aspect of this disclosure for solving the aforementioned problems is a toilet device. The toilet device of the first aspect comprises a toilet body having a toilet bowl portion, and a discharge portion that discharges a cleaning medium from a discharge hole to one side in the circumferential direction into the toilet bowl portion, wherein the cleaning medium is a specific cleaning medium consisting of cleaning foam, an alkaline liquid, and an acidic liquid, and in a plan view, a left-right center line that bisects the left-right dimension of the upper end opening of the toilet bowl portion, and a front-rear center line that bisects the front-rear dimension of the upper end opening, and the toilet bowl portion is divided into four divided regions by these lines, and one side in the circumferential direction relative to the front-rear center line When the front dividing region adjacent to the first dividing region is designated as the first dividing region, and the three dividing regions sequentially provided on one side in the circumferential direction relative to the first dividing region are designated as the second dividing region, the third dividing region, and the fourth dividing region, then either of the following conditions (a) or (b) is satisfied, where condition (a) is that the discharge hole is provided in either the first dividing region or the second dividing region, and condition (b) is that the discharge hole is provided in the third dividing region and discharges the specific cleaning medium backward. [Brief explanation of the drawing]

[0007] [Figure 1] This is a side cross-sectional view showing a part of the toilet device of the first embodiment. [Figure 2] This is a plan view showing a part of the toilet device of the first embodiment. [Figure 3] This is a plan view showing the toilet bowl body of the first embodiment. [Figure 4] This is a block diagram showing some of the functions of the toilet device according to the first embodiment. [Figure 5] This is a diagram showing the configuration of the supply device according to the first embodiment. [Figure 6A] This is a schematic diagram showing the flow of the cleaning medium in the cleaning mode of the first embodiment. [Figure 6B] This is a schematic diagram showing the flow of the cleaning medium in the first supply mode of the first embodiment. [Figure 6C] This is a schematic diagram showing the flow of the cleaning medium in the second supply mode of the first embodiment. [Figure 7]This is a schematic plan view showing the flow of the cleaning medium in the cleaning mode of the first embodiment. [Figure 8] This is a schematic plan view showing the flow of the cleaning medium in the first supply mode of the first embodiment. [Figure 9] This is a schematic plan view illustrating the flow of the cleaning medium in the second supply mode of the first embodiment. [Figure 10] This is a schematic plan view showing the flow of the cleaning medium in the first supply mode of the second embodiment. [Figure 11] This is a schematic plan view showing the flow of the cleaning medium in the second supply mode of the second embodiment. [Figure 12] This is a schematic plan view showing the flow of the cleaning medium in the first supply mode of the third embodiment. [Figure 13] This is a schematic plan view illustrating the flow of the cleaning medium in the second supply mode of the third embodiment. [Modes for carrying out the invention]

[0008] Identical components are denoted by the same reference numeral, and redundant explanations are omitted. In each drawing, components are omitted, enlarged, or reduced as appropriate for ease of explanation. Drawings should be viewed in accordance with the orientation of the reference numerals. The shapes referred to in this specification include not only shapes that strictly match the referred shape, but also shapes that deviate by errors such as dimensional tolerances and manufacturing tolerances.

[0009] (First Embodiment) Refer to Figures 1 and 2. Figure 1 is also a cross-sectional view AA of Figure 2. Figure 2 also shows some of the functional blocks of the toilet device 10. In this specification, we will use three mutually orthogonal directions for explanation. These directions are the front-to-back direction X, the left-to-right direction Y, and the up-and-down direction Z. The front-to-back direction X and the left-to-right direction Y are horizontal directions and correspond to the front, back, left, and right of a user sitting in a normal posture on the toilet seat 16, which will be described later. The up-and-down direction Z is the vertical direction.

[0010] The toilet device 10 includes a toilet body 14 having a toilet bowl portion 12, a toilet seat 16 attached to the toilet body 14, and a drainage pipe 18 connected to the bottom of the toilet bowl portion 12.

[0011] In this embodiment, the toilet seat 16 is attached to the toilet body 14 via a casing 19 mounted on the rear portion of the toilet body 14. Various mechanical devices such as a local cleaning device (not shown) are housed in the casing 19.

[0012] The drainage pipe 18 is connected to a drain pipe (not shown) installed in a building and serves as a passage for waste and water discharged from the toilet bowl portion 12 into the drain pipe. The drainage pipe 18 of this embodiment includes a toilet drainage channel 21 provided in the toilet body 14 and connected to the drain pipe. The toilet drainage channel 21 is connected to the drain pipe via, for example, a drainage socket (not shown). An upward flow channel 22 that constitutes a water seal storage portion 20 is provided in the drainage pipe 18. A water seal 24 that blocks the flow of air in the drainage pipe 18 is stored in the water seal storage portion 20.

[0013] The toilet body 14 of this embodiment is made of pottery. The material of the toilet body 14 is not particularly limited and may be, for example, resin or the like. The toilet body 14 of this embodiment is a Western-style toilet having a toilet bowl portion 12. The toilet bowl portion 12 includes a bowl-shaped waste receiving surface 26 for receiving waste, a rim portion 28 that constitutes the upper end side portion of the toilet bowl portion 12, and a water storage portion 30 that is recessed downward from the lower end edge of the waste receiving surface 26. The inner peripheral surface of the rim portion 28 constitutes a partial range that extends downward from the upper end opening 32 of the toilet bowl portion 12. In this embodiment, it is the range from the upper end opening 32 of the toilet bowl portion 12 to the upper end edge portion of the waste receiving surface 26. The water storage portion 30 forms the bottom of the toilet bowl portion 12 and has a bottomed shape. An inlet 18a of the drainage pipe 18 opens in the water storage portion 30, and the stored water 25 is stored therein.

[0014] The toilet device 10 includes a discharge portion 36 that discharges a cleaning medium for cleaning the inside of the toilet bowl portion 12 from a discharge hole 34 into the toilet bowl portion 12. The discharge portion 36 of this embodiment is constituted by a part of the toilet body 14. In addition, the toilet device 10 of this embodiment includes a jet water discharge portion 38 that discharges water toward the downstream side of the drainage pipe 18.

[0015] The discharge part 36 of this embodiment includes a first discharge part 36A provided with a first discharge hole 34A and a second discharge part 36B provided with a second discharge hole 34B. The first discharge hole 34A and the second discharge hole 34B open to the inner peripheral surface of the toilet bowl part 12. The first discharge hole 34A opens forward on one side in the circumferential direction. Here, "one side in the circumferential direction" is counterclockwise in the plane of FIG. 2 and will be simply referred to as counterclockwise hereinafter. The first discharge part 36A discharges the cleaning medium counterclockwise and forward from the first discharge hole 34A into the toilet bowl part 12. The second discharge hole 34B opens counterclockwise and backward. The second discharge part 36B discharges the cleaning medium counterclockwise and backward from the second discharge hole 34B into the toilet bowl part 12. The first discharge hole 34A and the second discharge hole 34B form a swirling flow that swirls counterclockwise in the toilet bowl part 12 by discharging the cleaning medium.

[0016] The first discharge part 36A can discharge a specific cleaning medium supplied from a supply device 56 (described later) as the cleaning medium. Here, the specific cleaning medium consists of any one of cleaning foam, an alkaline liquid, and an acidic liquid. The specific cleaning medium in this embodiment is cleaning foam. In addition, the first discharge part 36A of this embodiment can discharge cleaning water supplied from the supply device 56 as the cleaning medium. The second discharge part 36B of this embodiment can discharge cleaning water supplied from the supply device 56 as the cleaning medium.

[0017] Here, "washing water" refers to a single-phase flow of water with a hydrogen ion concentration (hereinafter referred to as pH) of 6 or higher and less than 8. "Washing foam" refers to a multi-phase flow of liquid and air. This liquid may be water with a pH of 6 or higher and less than 8, or it may be either an alkaline liquid or an acidic liquid. "Alkaline liquid" refers to a single-phase flow of a liquid with a pH of less than 6. This alkaline liquid is, for example, a solution of baking soda, oxygen-based bleach (e.g., sodium percarbonate), or chlorine-based bleach. Other alkaline liquids include, for example, liquids containing alkaline enzymes. Alkaline liquids are used to remove limescale. "Acidic liquid" refers to a single-phase flow of a liquid with a pH of 8 or higher. This acidic liquid is, for example, a solution of citric acid or urine scale remover. Other acidic liquids include, for example, liquids containing hydrochloric acid, organic acids, or acidic enzymes. Acidic liquids are used to remove black mold.

[0018] The discharge section 36 is equipped with a passage 40 into which the cleaning medium supplied from the supply device 56 (described later) flows. The passage 40 includes a first passage 40A provided by the first discharge section 36A and a second passage 40B provided by the second discharge section 36B. The first passage 40A is formed to extend counterclockwise from the rear of the toilet bowl section 12, and a first discharge hole 34A is formed at its end. The second passage 40B is formed to extend circumferentially to the other side (hereinafter also referred to as "clockwise") from the rear of the toilet bowl section 12. A folded-back section 41 is formed in the middle of the second passage 40B, and a second discharge hole 34B is formed at its end. Each discharge section 36A, 36B discharges the cleaning medium supplied from the supply device 56 from its own discharge holes 34A, 34B.

[0019] In the second passage 40B, a flow straightening section 42 is formed downstream of the return section 41. The flow straightening section 42 can straighten the flow of the cleaning medium that has passed through the return section 41. To achieve this, the dimensions of the flow straightening section 42 along the flow direction are set to be larger than the width Lw of the second discharge hole 34B, preferably five times or more the width Lw. This allows the cleaning medium to be straightened by the flow straightening section 42 and discharged from the second discharge hole 34B even if the flow of the cleaning medium is disturbed in the process of passing through the return section 41. This flow direction is along the central axis of the flow straightening section 42. This width Lw refers to the dimensions of the second discharge hole 34B along the direction perpendicular to the flow direction in a plan view. Here, the width Lw refers to the average of the measured values ​​of the width at the 1 / 4, 2 / 4, and 3 / 4 positions, which divide the second discharge hole 34B into four equal parts in the vertical direction.

[0020] Refer to Figure 3. Assume there is a left-right center line Lc1 that bisects the left-right dimension Dy of the upper end opening 32 of the toilet bowl portion 12, and a front-rear center line Lc2 that bisects its front-rear dimension Dx. The left-right center line Lc1 is a straight line extending along the front-rear direction X, and the front-rear center line Lc2 is a straight line extending along the left-right direction Y. The left-right dimension Dy refers to the maximum dimension in the left-right direction Y with respect to the inner surface of the upper end opening 32 of the toilet bowl portion 12. The front-rear dimension Dx refers to the maximum dimension in the front-rear direction X with respect to the inner surface of the upper end opening 32 of the toilet bowl portion 12. The intersection of the left-right center line Lc1 and the front-rear center line Lc2 is called Pi.

[0021] The toilet bowl portion 12 is divided into four divisional regions Da1 to Da4 by the left-right center line Lc1 and the front-to-back center line Lc2. The four divisional regions Da1 to Da4 are separate parts of the toilet bowl portion 12 that are separated by the left-right center line Lc1 and the front-to-back center line Lc2 in a plan view. Of the four divisional regions Da1 to Da4, the front divisional region adjacent to the front-to-back center line Lc2 in a counterclockwise direction (one side in the circumferential direction) is designated as the first divisional region Da1. Of the four divisional regions Da1 to Da4, the remaining divisional regions that are provided in order counterclockwise (one side in the circumferential direction) from the first divisional region Da1 are designated as the second divisional region Da2, the third divisional region Da3, and the fourth divisional region Da4, respectively. In this embodiment, the first to fourth divisional regions Da1 to Da4 can be considered to be located in the first to fourth quadrants in mathematics.

[0022] The first discharge hole 34A is provided in the first divided region Da1. The second discharge hole 34B is provided in a divided region different from the first divided region Da1. In this embodiment, the second discharge hole 34B is provided in the third divided region Da3, which is on the rear side opposite to the first divided region Da1 with respect to the aforementioned intersection Pi. In this embodiment, the first discharge hole 34A is provided on one side with respect to the left-right center line Lc1, and the second discharge hole 34B is provided on the opposite side of the left-right center line Lc1 from the first discharge hole 34A. The second discharge hole 34B is provided behind the front-rear center line Lc2.

[0023] The inner circumferential surface of the rim portion 28 includes, in plan view, a first bending region 43 provided in a circumferential range spanning the left and right centerlines Lc1 from the first discharge hole 34A, and a second bending region 44 provided in a circumferential range spanning the left and right centerlines Lc1 from the second discharge hole 34B. In this embodiment, the starting end 43a of the first bending region 43 is provided in the first dividing region Da1, and its ending end 43b is provided in the second dividing region Da2. In this embodiment, the starting end 44a of the second bending region 44 is provided in the third dividing region Da3, and its ending end 44b is provided in the fourth dividing region Da4.

[0024] The first bending region 43 has a transition curve shape in the circumferential range in which the first bending region 43 is provided. The second bending region 44 has a transition curve shape in the circumferential range in which the second bending region 44 is provided. Here, a transition curve refers to a curve in which, in a plan view, the curvature changes monotonically as you move away from the discharge hole 34 in a counterclockwise direction (one side in the circumferential direction). Monotonic change refers to either monotonically increasing or monotonically decreasing, and in this embodiment, it is monotonically increasing. In this embodiment, this transition curve is a clothoid curve in which the curvature increases uniformly. Specific examples of the transition curve are not limited to this, and may also include a cubic parabola, a sine half-wavelength diminishing curve, etc. In this specification, "shape" includes not only shapes that geometrically exactly match the shape referred to by the preceding term, but also shapes that are similar to the shape referred to by that term.

[0025] The first bending region 43 is connected to the first constant curvature region 46 provided on the inner circumferential surface of the rim portion 28 in the second divided region Da2. The first constant curvature region 46 has the shape of a curve with constant curvature in a plan view. A curve with constant curvature is a circular arc. The second bending region 44 is connected to the second constant curvature region 48 provided on the inner circumferential surface of the rim portion 28 in the fourth divided region Da4. The second constant curvature region 48 has the shape of a curve with constant curvature in a plan view.

[0026] The effects of the above improvements will now be explained. The first discharge hole 34A is provided in the first divided region Da1 of the toilet bowl 12. Therefore, compared to the case where the first discharge hole 34A is provided in the fourth divided region Da4 of the toilet bowl 12, it becomes easier to deliver a large portion of the specific cleaning medium discharged from the first discharge hole 34A to the front central region 12b of the toilet bowl 12, which is prone to soiling. Consequently, the toilet bowl 12 can be thoroughly cleaned with the specific cleaning medium. The front central region 12b refers to the area closer to the left-right center line Lc1, which is located in front of the water reservoir 30 of the toilet bowl 12, and is the area that is most likely to be hit by urine when a user in a seated position urinates.

[0027] Compared to the case where the first discharge hole 34A is provided in the fourth divided region Da4 of the toilet bowl 12, it becomes easier to accumulate more washing foam in the front central region 12b of the toilet bowl 12. Consequently, when a user in a seated position urinates, the urine can be directed onto this accumulated washing foam, thereby suppressing the scattering of droplets.

[0028] (A) The inner circumferential surface of the rim portion 28 is provided with a saturated curve-shaped first bending region 43 that spans from the first discharge hole 34A across the left and right center lines Lc1. Therefore, compared to the case where an inflection point is provided on the inner circumferential surface of the rim portion 28 at an intermediate position in the circumferential range from the first discharge hole 34A to the left and right center lines Lc1, the specific cleaning medium discharged from the first discharge hole 34A is able to maintain its momentum more easily. Consequently, the specific cleaning medium discharged from the first discharge hole 34A can be made to reach further. In turn, the cleaning range within the toilet bowl portion 12 by the specific cleaning medium can be widened. In addition, compared to the case where an inflection point is provided on the inner circumferential surface of the rim portion 28, a situation in which a large centrifugal force is applied to the specific cleaning medium due to a sudden change in curvature can be avoided. Consequently, the specific cleaning medium can be prevented from splashing out.

[0029] (B) The second discharge port 34B is provided in a division region different from the first division region Da1 of the toilet bowl portion 12. Therefore, the area of ​​cleaning within the toilet bowl portion 12 by the cleaning medium can be widened compared to the case where the second discharge port 36B is not present.

[0030] The second discharge hole 34B is located in the third divided region Da3. Therefore, compared to the case where the second discharge hole 34B is located in another divided region of the toilet bowl 12, it becomes easier to deliver more cleaning medium to the rear central region 12c of the toilet bowl 12, which is prone to soiling. Consequently, the rear central region 12c can be thoroughly cleaned with the cleaning medium. The rear central region 12c here refers to the area located behind the water surface of the accumulated water 25, closer to the left-right center line Lc1. The rear central region 12c is prone to soiling when a user urinates in a standing position and when a user defecates in a sitting position.

[0031] (C) The inner circumferential surface of the rim portion 28 is provided with a saturation curve-shaped second bending region 44 that spans from the second discharge hole 34B across the left and right center line Lc1. Therefore, compared to the case where an inflection point is provided on the inner circumferential surface of the rim portion 28 at an intermediate position in the circumferential range from the second discharge hole 34B to the left and right center line Lc1, the cleaning medium discharged from the second discharge hole 34B is able to maintain its momentum more easily. Consequently, the cleaning medium discharged from the second discharge hole 34B can be made to reach further. In turn, the cleaning range within the toilet bowl portion 12 by the cleaning medium can be widened. In addition, compared to the case where an inflection point is provided on the inner circumferential surface of the rim portion 28, a situation in which a large centrifugal force is applied to the cleaning medium due to a sudden change in curvature can be avoided. Consequently, the sudden ejection of the cleaning medium can be prevented.

[0032] Other features of the toilet device 10 will be described. Refer to Figures 1 and 3. The rim portion 28 is provided with guideways 50 that guide the cleaning medium discharged from the discharge holes 34 to swirl. The guideways 50 include a first guideway 50A corresponding to the first discharge hole 34A and a second guideway 50B corresponding to the second discharge hole 34B. The guideways 50 are formed in the rim portion 28 so as to extend counterclockwise from the corresponding discharge holes 34. The guideways 50 are provided with upward-facing shelf surfaces 52 that receive the cleaning medium discharged from the corresponding discharge holes 34. In this embodiment, the guideways 50 are provided on the inner circumferential surface of the rim portion 28 in a circumferential range including bending regions 43, 44.

[0033] An overhang portion 54 is provided on the upper part of the inner circumferential surface of the rim portion 28, protruding inward. In this embodiment, the overhang portion 54 is provided only in the circumferential range from the upstream end to the downstream end of the bending regions 43, 44, and not in other circumferential ranges. From another point of view, the overhang portion 54 is provided only in a part of the circumferential range extending counterclockwise from the discharge hole 34, and not in other circumferential ranges. Here, the overhang portion 54 refers to the portion having a downward-facing surface 54a with an angle θ (see Figure 1) of 60° or more with respect to the vertical plane Vp.

[0034] The overhang portion 54 is solid and plate-shaped. This means that, when viewed from above, there is no hollow portion in the overhang portion 54 at a position that overlaps with the inner circumferential surface of the overhang portion 54. In the toilet bowl body 14, at locations Pa (see Figure 1) other than the overhang portion 54, radially outward from the inner circumferential surface of the rim portion 28, either a solid structure or a hollow structure may be provided.

[0035] (D) This makes it possible to reduce the height dimension of the overhang portion 54 compared to when a hollow portion is provided in the overhang portion 54. Consequently, the height range of areas that are difficult for the cleaning medium to reach (for example, areas close to the upper end opening 32 of the toilet bowl portion) can be narrowed. This means that the height range of areas where dirt tends to accumulate can be narrowed, thereby improving cleanliness.

[0036] Refer to Figure 4. Each block shown in the block diagrams of this specification can be implemented in hardware terms by mechanical devices (including circuit elements), such as a computer's CPU (Central Processing Unit), and in software terms by computer programs, etc. Each block can be implemented in various ways by at least one of hardware and software.

[0037] The toilet device 10 includes a supply device 56 (see also Figure 2) that supplies a cleaning medium to the toilet bowl body 14, a control unit 58 that controls the supply device 56, a command output unit 60 that outputs commands to the control unit 58, and an action detection unit 62 that can detect specific actions of the user. The supply device 56 and the control unit 58 will be described later.

[0038] The command output unit 60 includes a washing command output unit 60A that outputs a washing command for executing a washing mode, which will be described later. In addition, the command output unit 60 includes a first supply command output unit 60B that outputs a first supply command for executing a first supply mode, which will be described later, and a second supply command output unit 60C that outputs a second supply command for executing a second supply mode, which will be described later. Each command output unit 60 is provided on an operating device such as a controller or a portable terminal. The controller is installed, for example, around the toilet unit 10 or in the casing 19 (see Figure 1). When such a command output unit 60 receives a push operation from a user, it generates a command corresponding to itself and outputs it to the control unit 58.

[0039] The motion detection unit 62 of this embodiment can detect a specific user action, such as sitting down on the toilet seat 16. Here, "sitting down" refers to the action of sitting on the toilet seat itself. The motion detection unit 62 of this embodiment is composed of, for example, a photoelectric sensor, a touch sensor, a pressure sensor, etc. The photoelectric sensor is, for example, an infrared sensor. The motion detection unit 62 is installed, for example, in the casing 19. When the motion detection unit 62 detects a specific user action, it generates an action detection signal indicating this and outputs it to the control unit 58.

[0040] Refer to Figures 2 and 5. The supply device 56 comprises a water supply mechanism 64 for supplying cleaning water and a supply mechanism 66 for supplying a specific cleaning medium. In this embodiment, the supply mechanism 66 supplies cleaning foam as the specific cleaning medium. In addition, the supply device 56 comprises a supply pipe 68 that supplies the cleaning medium supplied from the water supply mechanism 64 and the supply mechanism 66 to the toilet bowl body 14.

[0041] The water supply mechanism 64 includes a water supply channel 70 that supplies water from a water source as cleaning water to a supply pipe 68, and a first on-off valve 72 that opens and closes the water supply channel 70. The water source here is, for example, either a public water supply or a tank. The first on-off valve 72 is an electrically driven valve such as a solenoid valve, and its open or closed state is switched by the control unit 58. Whether or not cleaning water is supplied from the water supply channel 70 to the supply pipe 68 is switched by opening or closing the first on-off valve 72. When the first on-off valve 72 is in the open state, cleaning water is supplied from the water supply channel 70 to the supply pipe 68, and when the first on-off valve 72 is in the closed state, the supply of cleaning water from the water supply channel 70 to the supply pipe 68 is stopped.

[0042] The supply mechanism 66 includes a supply channel 74 through which water is supplied from a water source, a second on-off valve 76 for opening and closing the supply channel 74, and an ejector 78 provided in the middle of the supply channel 74 downstream of the second on-off valve 76. The supply mechanism 66 further includes a detergent tank 80 for storing liquid detergent, a detergent supply channel 82 connecting the detergent tank 80 and the ejector 78, and a detergent pump 84 provided in the detergent supply channel 82.

[0043] The second on-off valve 76 is an electrically driven valve such as a solenoid valve, and its open / closed state is switched by the control unit 58. When the second on-off valve 76 is opened, water is sent to the ejector 78 through the upstream portion of the supply passage 74. The operation of the detergent pump 84 is controlled by the control unit 58. When the detergent pump 84 is driven, detergent is sent to the ejector 78 through the detergent supply passage 82. When detergent and water are sent to the ejector 78, it uses the ejector effect to take in outside air and mixes the detergent, water and outside air to generate cleaning foam, and sends the generated cleaning foam to the downstream portion of the supply passage 74. In this way, cleaning foam is supplied from the supply passage 74 to the supply pipe 68. This cleaning foam is composed of a gas-liquid mixture of water, detergent and air.

[0044] When cleaning water is supplied from the water supply mechanism 64 to the supply pipe 68, the supply device 56 supplies the cleaning water to the discharge section 36 via the supply pipe 68. In this embodiment, the cleaning water is distributed and supplied to the respective discharge sections 36A and 36B. When a specific cleaning medium is supplied from the supply mechanism 66 to the supply pipe 68, the supply device 56 mainly supplies the specific cleaning medium to the first discharge section 36A via the supply pipe 68. The supply device 56 is capable of generating a specific cleaning medium using detergent and supplying the generated specific cleaning medium to the first discharge section 36A.

[0045] Refer to Figures 6A to 6C. The control unit 58 can cause the supply device 56 to execute the following cleaning mode, first supply mode, and second supply mode. The cleaning mode is a mode in which a predetermined amount of cleaning water W is supplied from the supply device 56 to the discharge units 36A and 36B, thereby discharging the waste in the toilet bowl 12.

[0046] The first supply mode is a mode in which a specific cleaning medium F with a first detergent concentration is supplied to the first discharge unit 36A, as shown in Figure 6B. In this embodiment, cleaning water W is also supplied from the supply device 56 to the second discharge unit 36B. The detergent concentration referred to here is the mass concentration of the detergent, obtained by dividing the mass of the detergent by the total mass of the cleaning medium in the cleaning medium supplied to the discharge unit 36 ​​per unit time.

[0047] The second supply mode, as shown in Figure 6C, is a mode in which a specific cleaning medium F with a second detergent concentration greater than the first detergent concentration is supplied to the first discharge unit 36A. In this embodiment, no cleaning medium is supplied to the second discharge unit 36B from the supply device 56.

[0048] The details of each mode will be explained below. The cleaning mode is performed when predetermined cleaning conditions are met. In this embodiment, the cleaning condition is that the control unit 58 receives a cleaning command output from the cleaning command output unit 60A.

[0049] The washing mode is performed by controlling the water supply mechanism 64 to supply washing water for a predetermined period of time. More specifically, this is performed by controlling the first on-off valve 72 of the water supply mechanism 64 to be switched to the open state. As a result, washing water W is supplied from the supply device 56 to each discharge port 36 of the toilet bowl body 14, and the washing water W is discharged as a washing medium from the discharge holes 34 of each discharge port 36.

[0050] The first supply mode is executed when a predetermined first supply condition is met. In this embodiment, the first supply condition is the same as the cleaning condition: the control unit 58 receives a cleaning command. The control unit 58, upon receiving the cleaning command, causes the supply device 56 to execute the first supply mode, followed by the cleaning mode. By the supply device 56 executing the first supply mode first, the toilet bowl 12 is cleaned with the specific cleaning medium F. After the first supply mode, the supply device 56 executes the cleaning mode, causing any remaining specific cleaning medium in the toilet bowl 12 to be washed away with cleaning water and then discharged through the drain pipe 18.

[0051] The first supply mode of this embodiment is performed by controlling the water supply mechanism 64 to supply washing water W for a predetermined time, and by controlling the supply mechanism 66 to supply a specific washing medium F of a second detergent concentration. At this time, the water supply mechanism 64 is controlled to switch the first on-off valve 72 to the open state. The supply mechanism 66 is controlled to switch the second on-off valve 76 to the open state and to drive the detergent pump 84.

[0052] As a result, the cleaning water W and the specific cleaning medium F (cleaning foam) at the second detergent concentration are mixed inside the supply pipe 68, and the specific cleaning medium F is reduced to the first detergent concentration. The specific cleaning medium F at the first detergent concentration is supplied from the supply device 56 to the first discharge section 36A as the cleaning medium, and this specific cleaning medium F is discharged from the first discharge hole 34A of the first discharge section 36A. As a result, the first discharge section 36A can discharge a low-viscosity specific cleaning medium F with a low detergent concentration. The cleaning water W is supplied from the supply device 56 to the second discharge section 36B as the cleaning medium, and the cleaning water W is discharged from the second discharge hole 34B of the second discharge section 36B.

[0053] The second supply mode is executed when a predetermined second supply condition is met. In this embodiment, the second supply condition is that the control unit 58 acquires the operation detection signal output from the operation detection unit 62. In other words, the control unit 58 causes the supply device 56 to execute the second supply mode when the operation detection unit 62 detects a specific operation by the user.

[0054] The second supply mode of this embodiment is performed by controlling the supply mechanism 66 to supply a specific cleaning medium F at a second detergent concentration for a predetermined time. At this time, the control unit 58 controls the water supply mechanism 64 to stop supplying the cleaning water W. As a result, unlike the first supply mode, the specific cleaning medium F at the second detergent concentration supplied by the supply mechanism 66 is supplied directly from the supply device 56 to the first discharge unit 36A. At this time, unlike the first supply mode, the first discharge unit 36A can discharge a highly viscous specific cleaning medium F with a high detergent concentration.

[0055] Next, the flow of the cleaning medium within the toilet bowl body 14 will be explained. Refer to Figures 7 and 8. Below, the flow direction of the cleaning medium is indicated by arrows. A black arrow Fa indicates that the cleaning medium is mainly cleaning water W, and a white arrow Fb indicates that the cleaning medium is a specific cleaning medium F.

[0056] Consider the case where cleaning water W is supplied to each discharge port 36, as in the cleaning mode (see Figure 7). In this case, each discharge port 36 discharges the cleaning water W supplied from the supply device 56 into the toilet bowl section 12 from the discharge port 34 in a counterclockwise direction (i.e., one side in the circumferential direction). This creates a swirling flow Fw within the toilet bowl section 12 using the cleaning water W. The swirling flow Fw gradually flows down towards the bottom side (water reservoir section 30 side) of the toilet bowl section 12 while swirling within it. As the cleaning water W flows down within the toilet bowl section 12, the waste in the water reservoir section 30 of the toilet bowl section 12 is discharged through the drainage pipe 18.

[0057] In this embodiment, when cleaning water W is supplied from the water supply mechanism 64, cleaning water is supplied from the water supply mechanism 64 to the jet discharge section 38 (see Figure 1), and the cleaning water is discharged from the jet discharge section 38 toward the downstream side of the drainage pipe 18. The jet discharge section 38 discharges water while the water is flowing downstream in the drainage pipe 18 due to the cleaning water W supplied from the water supply mechanism 64, thereby amplifying the water pressure of the flow toward the downstream side in the drainage pipe 18. As a result, waste in the toilet bowl section 12 is effectively discharged through the drainage pipe 18.

[0058] Refer to Figures 8 and 9. Consider the case where a specific cleaning medium F is supplied to the first discharge unit 36A, as in the first supply mode (see Figure 8) and the second supply mode (see Figure 9). In this case, the first discharge unit 36A discharges the specific cleaning medium F supplied from the supply device 56 into the toilet bowl section 12 from the first discharge hole 34A in a counterclockwise direction (one side in the circumferential direction).

[0059] As in the first supply mode, when a low-viscosity specific cleaning medium F with a low detergent concentration is discharged from the first discharge hole 34A, the specific cleaning medium F can easily reach areas far from the first discharge hole 34A. In this embodiment, the specific cleaning medium F can reach the rear central region 12c of the toilet bowl 12. This makes it easier to clean the rear central region 12c of the toilet bowl 12 with the specific cleaning medium F.

[0060] In the first supply mode, similar to the washing mode, each discharge unit 36 ​​discharges the cleaning medium supplied from the supply device 56 into the toilet bowl section 12 through the discharge holes 34 in a counterclockwise direction. As a result, similar to the washing mode, a swirling flow Fw is formed within the toilet bowl section 12 by the cleaning medium.

[0061] On the other hand, as in the second supply mode, when a highly viscous specific cleaning medium F with a high detergent concentration is discharged from the first discharge port 34A, the cleaning foam, which is the specific cleaning medium F, tends to remain in the toilet bowl 12 near the first discharge port 34A. More specifically, the cleaning foam tends to remain in the front central region 12b of the toilet bowl 12 near the first discharge port 34A, and accumulates there. This helps to suppress the scattering of droplets when a user in a seated position urinates.

[0062] The first discharge port 34A discharges a low-viscosity specific cleaning medium F in the first supply mode and a high-viscosity specific cleaning medium F in the second supply mode. Therefore, in the first supply mode, the specific cleaning medium F discharged from the first discharge port 34A swirls faster as it flows through the toilet bowl section 12 compared to the second supply mode.

[0063] (E) Thus, the control unit 58 can cause the supply device 56 to execute a first supply mode that supplies a specific cleaning medium F at a first detergent concentration and a second supply mode that supplies a specific cleaning medium F at a second detergent concentration. Therefore, the specific cleaning medium F at an appropriate detergent concentration can be discharged from the discharge hole 34 into the toilet bowl 12 according to the application, improving the usability of the toilet device 10.

[0064] (F) When the control unit 58 detects a specific action using the action detection unit 62, it causes the supply device 56 to execute a supply mode for supplying a specific cleaning medium F. Therefore, the specific cleaning medium F can be supplied into the toilet bowl 12 in advance before the user attempts to use the toilet in a seated position on the toilet seat 16. This makes it easier to accumulate the cleaning foam in the toilet bowl 12 when using cleaning foam as the specific cleaning medium F. As a result, when using the toilet in a seated position, it becomes easier for the user to accumulate cleaning foam in the toilet bowl 12 without any special operation. This results in a good user experience.

[0065] (G) In particular, the control unit 58 of this embodiment supplies cleaning foam at a second detergent concentration when it detects a specific operation using the operation detection unit 62. It can also be said that when the control unit 58 detects a specific operation using the operation detection unit 62, it causes the supply device 56 to execute the second supply mode instead of the first supply mode. Therefore, it becomes easier to accumulate cleaning foam in the toilet bowl 12 compared to when cleaning foam at a first detergent concentration is supplied. Consequently, a better user experience can be obtained.

[0066] (Second Embodiment) Refer to Figures 10 and 11. Unlike the previously described embodiment, the supply device 56 of the second embodiment supplies the specific cleaning medium F to the second discharge unit 36B. This will be described in detail below.

[0067] In this embodiment, when the supply device 56 is in the first supply mode (see Figure 10), it supplies cleaning water W to the first discharge unit 36A and a specific cleaning medium F to the second discharge unit 36B. As a result, the first discharge unit 36A discharges cleaning water W as the cleaning medium (see arrow Fa), and the second discharge unit 36B discharges the specific cleaning medium (see arrow Fb). At this time, the supply device 56 supplies a specific cleaning medium F with a low viscosity and a first detergent concentration to the second discharge unit 36B. Therefore, the specific cleaning medium F discharged from the second discharge hole 34B can easily reach areas far from the second discharge hole 34B of the second discharge unit 36B. In this embodiment, cleaning foam F can reach the front central region 12b of the toilet bowl 12. This makes it easier to clean a wide area including the front central region 12b of the toilet bowl 12.

[0068] In this embodiment, when the supply device 56 is in the second supply mode (see Figure 11), it does not supply washing water W to the first discharge unit 36A, but instead supplies a specific washing medium F to the second discharge unit 36B. As a result, the first discharge unit 36A does not discharge the washing medium, and the second discharge unit 36B discharges the specific washing medium F (see arrow Fb). At this time, the supply device 56 supplies a specific washing medium F with a high viscosity and a second detergent concentration to the second discharge unit 36B. Therefore, near the second discharge hole 34B, the washing foam, which is the specific washing medium F discharged from the second discharge hole 34B, is more easily accumulated in the toilet bowl 12. In this embodiment, near the second discharge hole 34B, the washing foam is more easily accumulated in the rear central region 12c of the toilet bowl 12. This suppresses the scattering of droplets when a user urinates in a standing position, and when a user defecates in a sitting position.

[0069] (H) The second discharge hole 34B is provided in the third divided region Da3 of the toilet bowl 12, similar to the first embodiment. Therefore, compared to the case where the second discharge hole 34B is provided in the fourth divided region Da4 of the toilet bowl 12, it becomes easier to deliver a large portion of the specific cleaning medium discharged from the second discharge hole 34B to the rear central region 12c of the toilet bowl 12, which is prone to soiling. Consequently, the toilet bowl 12 can be thoroughly cleaned with the specific cleaning medium.

[0070] (I) Compared to the case where the second discharge hole 34B is provided in the fourth divided region Da4 of the toilet bowl 12, it becomes easier to accumulate a large amount of cleaning foam in the rear central region 12c of the toilet bowl 12. Consequently, when the user applies the waste to this accumulated cleaning foam, the scattering of splashes can be suppressed.

[0071] (J) The second discharge hole 34B is provided in the third divided region Da3 and discharges the specific cleaning medium F backward. Therefore, compared to the case where the specific cleaning medium is discharged from the second discharge hole 34B in the third divided region Da3 along the left-right direction, it becomes easier to apply the specific cleaning medium F with force to the inner surface of the rim portion 28 around the rear end portion 12d of the toilet bowl portion 12. Consequently, the specific cleaning medium F spreads more easily vertically on the inner surface of the rim portion 28. As a result, the toilet bowl portion 12 can be cleaned well by the specific cleaning medium F.

[0072] In addition, the toilet device 10 of this embodiment includes components (not shown) described in (A) to (G) above, and can obtain the effects corresponding to those descriptions.

[0073] (Third Embodiment) Refer to Figures 12 and 13. Unlike the previously described embodiments, the supply device 56 of the third embodiment supplies the specific cleaning medium F to each discharge unit 36A and 36B. This will be described in detail below.

[0074] In this embodiment, when the supply device 56 is in the first supply mode (see Figure 12), it supplies a specific cleaning medium F with a low viscosity and a first detergent concentration to each discharge unit 36A and 36B. As a result, the discharge holes 34A and 34B of each discharge unit 36A and 36B discharge the specific cleaning medium F (see arrow Fb). In this embodiment, the specific cleaning medium F discharged from the first discharge hole 34A can reach the rear central region 12c of the toilet bowl 12. At the same time, the specific cleaning medium F discharged from the second discharge hole 34B can reach the front central region 12b of the toilet bowl 12.

[0075] In this embodiment, when the supply device 56 is in the second supply mode (see Figure 13), it supplies a specific cleaning medium F with a high viscosity and a second detergent concentration to each discharge unit 36A and 36B. As a result, the discharge holes 34A and 34B of each discharge unit 36A and 36B discharge the specific cleaning medium F (see arrow Fb). The specific cleaning medium F discharged from the first discharge hole 34A tends to accumulate in the front central region 12b of the toilet bowl 12. At the same time, the specific cleaning medium F discharged from the second discharge hole 34B tends to accumulate in the rear central region 12c of the toilet bowl 12.

[0076] In this embodiment, each discharge port 34A and 34B can discharge the specific cleaning medium F. Therefore, the front central region 12b and the rear central region 12c of the toilet bowl 12, which are prone to soiling, can be effectively cleaned with the specific cleaning medium F. In order to obtain the effects described here, it is sufficient that each discharge port 34A and 34B can discharge the specific cleaning medium F; the timing of their discharge does not need to be simultaneous.

[0077] In addition, the toilet device 10 of this embodiment includes components (not shown) described in (A) to (G) above, and can obtain the effects corresponding to those descriptions.

[0078] Other variations of each component are described below.

[0079] In this embodiment, an example was described in which "one side in the circumferential direction" is counterclockwise and "the other side in the circumferential direction" is clockwise. However, "one side in the circumferential direction" may be clockwise and "the other side in the circumferential direction" may be counterclockwise. For example, the discharge direction of the discharge hole 34 may be clockwise. In this case, the terms "counterclockwise" and "clockwise" in the embodiment should be replaced with the terms "clockwise" and "counterclockwise," respectively.

[0080] If the toilet device 10 is provided with a first discharge hole 34A in the first divided region Da1, it does not need to be provided with a second discharge section 36B.

[0081] The toilet device 10 may be provided with a second discharge hole 34B in the second divided region Da2 as an alternative to the third divided region Da3. In this case as well, the effects of (H), (I), (J), etc. described above can be obtained. In this case, it is not essential to discharge the specific cleaning medium backward in order to obtain the effect of (J). In this case as well, the inner circumferential surface of the rim portion 28 may be provided with a bending region 44 that spans the circumferential range from the second discharge hole 34B across the left and right center line Lc1. This allows the effect of (C) described above to be obtained.

[0082] If the toilet device 10 is provided with a second discharge hole 34B in either the second divided region Da2 or the third divided region Da3, it does not need to be provided with a first discharge section 36A. In this case, the first discharge hole 34A of the first discharge section 36A may also be provided in a divided region other than the first divided region Da1.

[0083] The toilet device 10 does not necessarily have to be equipped with a jet water outlet 38.

[0084] Unlike in this embodiment, the first discharge section 36A and the second discharge section 36B may be provided separately from the toilet bowl body 14.

[0085] The conduit 50 is provided only in the circumferential range from the upstream end to the downstream end of the bending regions 43 and 44, and does not need to be provided in other circumferential ranges.

[0086] The circumferential range in which the overhang portion 54 is provided is not particularly limited. For example, the overhang portion 54 may be provided over the entire circumference of the rim portion 28. The overhang portion 54 may also have a hollow section.

[0087] From the viewpoint of obtaining the effect of (A) described above, the first bending region 43 may, in a plan view, have a curve shape with constant curvature instead of a transition curve shape. The first bending region 43 does not have to have either a curve shape with constant curvature or a transition curve shape.

[0088] From the viewpoint of obtaining the effect of (B) described above, the second discharge hole 34B may be provided in either the second divided region Da2 or the fourth divided region Da4, as a divided region different from the first divided region Da1.

[0089] From the viewpoint of obtaining the effect of (C) described above, the second bending region 44 may, in a plan view, have a curve shape with constant curvature instead of a transition curve shape. The second bending region 44 does not have to have either a curve shape with constant curvature or a transition curve shape.

[0090] The supply device 56 does not necessarily have to include a water supply mechanism 64. The supply mechanism 66 is described in an example where cleaning foam is generated using an ejector. This specific example is not particularly limited, and cleaning foam may also be generated using a swirling flow, a porous body, etc.

[0091] The specified cleaning medium may be either an alkaline liquid or an acidic liquid. The supply device 56 may generate the alkaline liquid and the acidic liquid as the specified cleaning medium using either an alkaline or acidic detergent liquid.

[0092] Unlike in the embodiment, the cleaning foam, which is the specific cleaning medium F, does not have to contain detergent. In this case, the cleaning foam may consist of, for example, water mixed with bubbles that does not contain detergent. The foam diameter of the cleaning foam is not particularly limited. This foam diameter may be, for example, on the order of nm, μm, or mm.

[0093] The control unit 58 only needs to be able to supply a specific cleaning medium F to the supply device 56 when it detects a specific action by the user. For example, when it detects a specific action by the user, it may cause the supply device 56 to execute the first supply mode from among the first and second supply modes. The control unit 58 may perform such control using a supply device 56 in which the detergent concentration of the cleaning medium cannot be changed. The control unit 58 may also switch the supply mode that it causes the supply device 56 to execute when it detects a specific action by the user using an operating device.

[0094] The motion detection unit 62 may also be capable of detecting pre-sitting actions on the toilet seat 16 as specific user actions. In other words, it is sufficient if it can detect either the sitting action or the pre-sitting action as specific user actions. The pre-sitting action here refers to a predetermined action performed before attempting to sit on the toilet seat. This pre-sitting action refers to, for example, the action of entering the installation room where the toilet equipment 10 is installed, or the action of approaching the toilet seat 16. The installation room here refers to a toilet booth if there is at least one toilet booth in the toilet room, or the toilet room itself if there is no such toilet booth. The toilet booth here refers to a space partitioned off by a partition installed in the toilet room. When detecting this pre-sitting action, the motion detection unit 62 is configured, for example, by a human motion sensor.

[0095] The cleaning conditions may also include operations performed on operating components such as levers.

[0096] The first supply condition is not limited to the content of the embodiment. The first supply condition may, for example, satisfy at least one of a first condition in which the control unit 58 acquires a cleaning command and a second condition in which the control unit 58 acquires a first supply command. Unlike the cleaning condition, the first supply condition does not necessarily require the control unit 58 to acquire a cleaning command.

[0097] The second supply condition is not limited to the content of the embodiment. The second supply condition may, for example, satisfy at least one of the first condition in which the control unit 58 acquires an operation detection signal and the second condition in which the control unit 58 acquires a second supply command.

[0098] The control method for changing the detergent concentration of the specific cleaning medium F in the first supply mode and the second supply mode is not limited to the embodiments described. For example, only the supply mechanism 66 may be controlled to satisfy similar conditions. To achieve this, for example, the rotation speed of the detergent pump 84 of the supply mechanism 66 may be controlled. Specifically, the detergent pump 84 may be driven at a first rotation speed in the first supply mode and at a second rotation speed greater than the first rotation speed in the second supply mode. This makes it possible to reduce the detergent concentration of the specific cleaning medium F supplied from the supply mechanism 66 in the first supply mode and increase the detergent concentration of the specific cleaning medium F supplied from the supply mechanism 66 in the second supply mode.

[0099] When the control unit 58 instructs the supply device 56 to execute the supply mode followed by the washing mode, it may use an acidic liquid as the specific washing medium, unlike in the embodiment. In this case, after washing away limescale, calcium contained in urine, etc., adhering to the toilet bowl 12 with the acidic liquid, it becomes easier to wash away the dirt in the toilet bowl 12 with the acidic liquid.

[0100] The control unit 58 may operate the supply device 56 in the order of washing mode, then supply mode. In performing such control, any of washing foam, alkaline liquid, or acidic liquid may be used as the specific washing medium. Let's consider the case where an acidic liquid is used as the specific washing medium. In this case, after washing away the waste in the toilet bowl 12 with washing water, it becomes easier to wash away limescale, calcium contained in urine, etc. that has adhered to the toilet bowl 12 with the acidic liquid. In addition, let's consider the case where an alkaline liquid is used as the specific washing medium. In this case, after washing away the waste in the toilet bowl 12 with washing water, supplying an alkaline liquid to the toilet bowl 12 can prevent mold and other contaminants from adhering to the toilet bowl 12.

[0101] In addition, the control unit 58 may cause the supply device 56 to execute a supply mode, a cleaning mode, and then another supply mode in that order. In this case, the specific cleaning medium used in the earlier supply mode may be different from the specific cleaning medium used in the later supply mode. For example, in the earlier supply mode, the supply device 56 may supply an acidic liquid as the specific cleaning medium, and in the later supply mode, the supply device 56 may supply an alkaline liquid as the specific cleaning medium.

[0102] The embodiments and modifications have been described above. The embodiments and modifications are merely examples. The contents of the embodiments and modifications should not be interpreted as limiting, and many design changes such as changes, additions, and deletions of components are possible. In the embodiments described above, the content in which such design changes are possible is emphasized with the notation "embodiment". However, design changes are also permitted in content without such notation. The hatching applied to the cross-section in the drawings does not limit the material to which the hatching is applied. Any combination of the above components is also valid.

[0103] From the above embodiments and modifications, the technical ideas described in the following sections can be abstracted.

[0104] (Item 1) A toilet bowl comprising: a toilet bowl body having a toilet bowl portion; a discharge portion that discharges a cleaning medium from a discharge hole to one side in the circumferential direction into the toilet bowl portion; a supply device that supplies the cleaning medium to the discharge portion; and a control unit that controls the supply device, wherein the supply device is capable of generating the cleaning medium using detergent, and the control unit is capable of causing the supply device to execute a first supply mode that supplies cleaning medium at a first detergent concentration and a second supply mode that supplies cleaning medium at a second detergent concentration greater than the first detergent concentration.

[0105] (Item 2) A toilet bowl device comprising: a toilet bowl body having a toilet bowl portion; a discharge portion that discharges a cleaning medium from a discharge hole to one side in the circumferential direction into the toilet bowl portion; a supply device that supplies the cleaning medium to the discharge portion; a control unit that controls the supply device; and an action detection unit that can detect either a sitting motion on the toilet seat or a pre-sitting motion as a specific action of the user, wherein the cleaning medium is a specific cleaning medium consisting of cleaning foam, an alkaline liquid, or an acidic liquid, and the control unit causes the supply device to supply the cleaning medium when the action detection unit detects the specific action.

[0106] The following is a description of each claim in the claims of the original application. (Claim 1) A toilet bowl body having a toilet bowl section, The toilet bowl portion is equipped with a discharge section that discharges a cleaning medium from a discharge hole to one side in the circumferential direction, The aforementioned cleaning medium is a specific cleaning medium consisting of cleaning foam, an alkaline liquid, and an acidic liquid. In a plan view, assuming a left-right center line that bisects the left-right dimension of the upper end opening of the toilet bowl and a front-rear center line that bisects the front-rear dimension of the upper end opening, the toilet bowl is divided into four divided regions by these lines, the front divided region adjacent to one side in the circumferential direction with respect to the front-rear center line is designated as the first divided region, and the three divided regions sequentially provided on one side in the circumferential direction relative to the first divided region are designated as the second divided region, the third divided region, and the fourth divided region, respectively. If either of the following conditions (a) or (b) is met, The above condition (a) is that the discharge hole is provided in either the first divided region or the second divided region. Condition (b) is a toilet device in which the discharge hole is provided in the third divided region and discharges the specific cleaning medium backward. (Claim 2) The toilet bowl portion includes a rim portion that forms the upper end portion of the toilet bowl portion, The toilet device according to claim 1, wherein the inner circumferential surface of the rim portion is provided in a circumferential range that spans the left and right centerlines from the discharge hole in a plan view, and comprises a curved region that is either a curved shape or a transitional curved shape with a constant curvature. (Claim 3) The toilet device according to any one of claims 1 to 2, wherein the discharge hole is provided in the first divided region. (Claim 4) The discharge hole is a first discharge hole provided in the first divided region, The aforementioned discharge section is a first discharge section, The toilet bowl portion is provided with a second discharge section that discharges a cleaning medium from a second discharge hole to one side in the circumferential direction, The toilet device according to claim 3, wherein the second discharge hole is provided in a division region different from the first division region. (Claim 5) The toilet device according to claim 4, wherein the second discharge port discharges a specific cleaning medium. (Claim 6) The toilet device according to any one of claims 4 to 5, wherein the second discharge hole is provided in either the second divided region or the third divided region. (Claim 7) The toilet bowl portion includes a rim portion that forms the upper end portion of the toilet bowl portion, The toilet device according to claim 6, wherein the inner circumferential surface of the rim portion is provided in a circumferential range in a plan view that spans the left and right centerlines from the second discharge hole, and comprises a curved region that is either a curved shape or a transitional curved shape with a constant curvature. (Claim 8) The toilet bowl portion includes a rim portion that forms the upper end portion of the toilet bowl portion, The toilet device according to any one of claims 1 to 7, wherein the rim portion is provided with a solid overhang portion. (Claim 9) A supply device for supplying the specified cleaning medium to the discharge unit, The system comprises a control unit for controlling the supply device, The supply device is capable of generating the specific cleaning medium using detergent. The toilet device according to any one of claims 1 to 8, wherein the control unit is capable of causing the supply device to perform a first supply mode of supplying the specific cleaning medium at a first detergent concentration and a second supply mode of supplying the specific cleaning medium at a second detergent concentration greater than the first detergent concentration. (Claim 10) A supply device for supplying the specified cleaning medium to the discharge unit, A control unit that controls the supply device, The system includes an action detection unit capable of detecting either the sitting motion on the toilet seat or the pre-sitting motion as a specific user action, The toilet device according to any one of claims 1 to 9, wherein the control unit causes the control unit to supply the specific cleaning medium to the supply device when it detects the specific operation. [Explanation of Symbols]

[0107] Da1~Da4…Divided region, Da1…First divided region, Lc1…Left-right center line, Lc2…Front-back center line, 10…Toilet device, 12…Toilet bowl section, 14…Toilet body, 16…Toilet seat, 28…Rim section, 32…Upper end opening, 34A…First discharge hole, 34B…Second discharge hole, 36A…First discharge section, 36B…Second discharge section, 43…First bending region, 44…Second bending region, 54…Overhang section, 56…Supply device, 58…Control unit, 62…Motion detection unit.

Claims

1. A toilet bowl body having a toilet bowl section, The toilet bowl portion includes a discharge section that discharges cleaning foam from a discharge hole to one side in the circumferential direction, The system includes a supply device that supplies the cleaning foam generated using the detergent dispensed by the detergent pump to the discharge section, In a plan view, assuming a left-right center line that bisects the left-right dimension of the upper end opening of the toilet bowl and a front-rear center line that bisects the front-rear dimension of the upper end opening, the toilet bowl is divided into four divided regions by these lines, the front divided region adjacent to one side in the circumferential direction with respect to the front-rear center line is designated as the first divided region, and the three divided regions sequentially provided on one side in the circumferential direction relative to the first divided region are designated as the second divided region, the third divided region, and the fourth divided region, respectively. Satisfying either of the following conditions (a) and (b): The condition (a) is that the discharge hole is provided in either the first divided region or the second divided region, and that the cleaning foam discharged from the discharge hole can reach the rear central region of the toilet bowl. The above condition (b) is a toilet device in which the discharge hole is provided in the third divided region and is open to the rear, and the washing foam discharged from the discharge hole to the front central region of the toilet bowl is made to reach the front central region.

2. The toilet device according to claim 1, wherein the condition (a) is that the discharge hole is provided in the second divided region, and the washing foam discharged from the discharge hole can reach the rear central region of the toilet bowl.

3. A second discharge hole is provided in one of the four divided regions, which is different from the divided region in which the first discharge hole, which is the discharge hole, is provided. The toilet device according to claim 1 or 2, wherein the toilet device is configured to discharge the washing foam from one of the first discharge hole and the second discharge hole, and to discharge washing water from the other of the first discharge hole and the second discharge hole.

4. The toilet bowl portion includes a rim portion that forms the upper end portion of the toilet bowl portion, The toilet device according to any one of claims 1 to 3, wherein the inner circumferential surface of the rim portion is provided in a circumferential range that spans the left and right centerlines from the discharge hole in a plan view, and comprises a curved region that is either a curved shape or a transitional curved shape with a constant curvature.

5. The toilet device according to claim 1, wherein the discharge hole is provided in the first divided region.

6. The discharge hole is a first discharge hole provided in the first divided region, The aforementioned discharge section is a first discharge section, The toilet bowl portion is provided with a second discharge section that discharges a cleaning medium from a second discharge hole to one side in the circumferential direction, The toilet device according to claim 5, wherein the second discharge hole is provided in a division region different from the first division region.

7. The toilet device according to claim 6, wherein the second discharge port discharges cleaning foam.

8. The toilet device according to any one of claims 6 to 7, wherein the second discharge hole is provided in either the second divided region or the third divided region.

9. The toilet bowl portion includes a rim portion that forms the upper end portion of the toilet bowl portion, The toilet device according to claim 8, wherein the inner circumferential surface of the rim portion is provided in a circumferential range in a plan view that spans the left and right centerlines from the second discharge hole, and comprises a curved region that is either a curved shape or a transitional curved shape with a constant curvature.

10. The toilet bowl portion includes a rim portion that forms the upper end portion of the toilet bowl portion, The toilet device according to any one of claims 1 to 9, wherein the rim portion is provided with a solid overhang portion.

11. A control unit that controls the supply device, The system includes an action detection unit capable of detecting either the sitting motion on the toilet seat or the pre-sitting motion as a specific user action, The toilet device according to any one of claims 1 to 10, wherein the control unit causes the control unit to supply the washing foam to the supply device when it detects the specific operation.

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