Toilet device

Abstract

The toilet device may be provided with: a toilet main body having a toilet bowl; a flushing part which flushes the washing water from a flushing port and enables the washing water to flow on the surface of the toilet bowl; the cleaning water having a surface flow rate of 0.5 m / s or more is caused to flow.

Description

Technical Field

[0001] The technology disclosed in this specification relates to a toilet device. Background Art

[0002] Japanese Patent Application Laid-Open No. 2010-265693 discloses a flush toilet having a spiral guide flow path for controlling the flow direction of water flowing in a bowl. Summary of the invention

[0003] Technical problem to be solved by the invention

[0004] When a toilet is used, dirt may adhere to the periphery of the upper edge of the toilet bowl. In this specification, a technology for maintaining a toilet bowl clean by washing with washing water is provided.

[0005] Technical solutions for solving technical problems

[0006] In the first technology disclosed in this specification, the toilet device may include: a toilet body having a toilet bowl; a flushing portion that allows cleaning water to flow on the surface of the toilet bowl; and the flushing portion allows the cleaning water to flow at a flow rate of more than 0.5 m / s on the surface of the cleaning water.

[0007] In the second technology disclosed in the present specification, it may be that the toilet device comprises: a toilet body, which has a toilet bowl; a flushing part, which flushes out cleaning water in multiple directions and uses the pressure of the cleaning water to make the cleaning water flow on the surface of the toilet bowl; for the flushing part, by at least one of making the cleaning water supplied by the supply pipe extending from the water supply path flow directly on the surface of the toilet bowl and making the cleaning water pressurized by a pump flow on the surface of the toilet bowl, the cleaning water is made to flow toward the surface of the toilet bowl, the cleaning water is flushed out in a first direction among the multiple directions, the cleaning water is made to flow in a first area on the surface of the toilet bowl, and the cleaning water is flushed out in a second direction among the multiple directions, the cleaning water is made to flow in a second area on the surface of the toilet bowl that is different from the first area.

[0008] The details and further improvements of the technology disclosed in this specification are described in the following “Detailed Description of the Invention”. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A perspective view showing a toilet device according to an embodiment.

[0010] Figure 2 A cross-sectional view showing a toilet body and a toilet seat taken along a cross section perpendicular to the left-right direction at the center of the left-right direction.

[0011] Figure 3express Figure 2 End view of the toilet bowl in section III-III.

[0012] Figure 4 express Figure 2 A cross-sectional view of the interior of the toilet bowl and the upper flange portion in section IV-IV.

[0013] Figure 5 This is a plan view showing a toilet body and a toilet seat according to the first embodiment.

[0014] Figure 6 It is a plan view showing the toilet body according to the first embodiment.

[0015] Figure 7 A plan view of the toilet body showing the first region according to the first embodiment is shown.

[0016] Figure 8 A plan view of the toilet body showing the second region of the first embodiment is shown.

[0017] Fig. 9 A plan view of the toilet body showing the third region of the first embodiment is shown.

[0018] Fig.10 A diagram illustrating the direction of flush water flushing out from the flush water outlet of the first embodiment is shown.

[0019] Fig.11 A diagram illustrating the direction of flush water flushing out from the flush water outlet of the first embodiment is shown.

[0020] Fig.12 A cross-sectional view showing a toilet body and a toilet seat taken along a cross section perpendicular to the left-right direction at the center of the left-right direction.

[0021] Fig.13 A schematic block diagram showing a punching unit according to the first embodiment.

[0022] Fig.14 A schematic block diagram showing a punching unit according to a second embodiment.

[0023] Fig.15 A diagram illustrating the direction of flush water flushing out from the flush water outlet according to the third embodiment is shown.

[0024] Fig.16 Indicates a modified example Fig.12 An enlarged cross-sectional view of area AR.

[0025] Fig.17 Indicates a modified example Fig.12 An enlarged cross-sectional view of area AR. DETAILED DESCRIPTION

[0026] (Structure of Toilet Device 10)

[0027] like Figure 1 As shown, the toilet device 10 is a flush toilet. The toilet device 10 is fixed to the ground for use. The toilet device 10 may also be a so-called wall-mounted flush toilet fixed to a wall, for example.

[0028] The toilet device 10 includes a toilet portion 12, a toilet seat 14, a functional portion 16, and a water tank 18 (see Figure 2 ) and the punching portion 40 (refer to Fig.13 ).like Figure 1 As shown, the toilet portion 12 includes a toilet body 20 and an upper flange portion 30. The toilet body 20 is made of pottery. The toilet body 20 includes a toilet bowl 21 for receiving waste. In the toilet body 20, a water tank 18 is stored below the toilet bowl 21. The water tank 18 stores cleaning water for cleaning the toilet bowl 21. The toilet device 10 includes a cleaning button (not shown) electrically connected to the water tank 18. If the user operates the cleaning button, cleaning water is flushed from the water tank 18 to the toilet bowl 21 via the flushing portion 40. The functional portion 16 may also have functions such as an opening and closing function of a toilet lid (not shown) that is automatically opened and closed according to the user's actions, a local cleaning function, a warm air drying function, and a deodorizing function.

[0029] In the toilet device 10, the flushing water in the water tank 18 can be supplied to the toilet bowl 21 by operating a lever provided in the toilet device 10 in addition to operating the flushing button. The flushing button can also be provided in a remote controller electrically connected to the water tank 18 by either wired or wireless means. Even without the user's operation, the flushing water in the water tank 18 can be supplied to the toilet bowl 21. For example, the flushing water in the water tank 18 can be supplied to the toilet bowl 21 when the user is no longer detected by the sensor.

[0030] The toilet seat 14 is attached to the toilet body 20 so as to be openable and closable. A user sits on the toilet seat 14. The toilet seat 14 has an opening 14a.

[0031] Hereinafter, the direction in which the toilet seat 14 and the functional portion 16 are arranged is referred to as the front-to-back direction. In the front-to-back direction, the side on which the toilet seat 14 is arranged relative to the functional portion 16 is referred to as the front side of the front-to-back direction, and the opposite side is referred to as the rear side. The horizontal direction perpendicular to the front-to-back direction is referred to as the left-right direction. Figure 1 The inner side of the paper is called the right side. Figure 1 The front-to-back direction of the paper is called the left side. The directions of the left and right sides are consistent with the left and right sides observed by the user facing the toilet device 10. The vertical direction perpendicular to the front-to-back direction is called the up-down direction. In the up-down direction, the side where the water tank 18 is arranged relative to the toilet body 20 is called the lower side, and the opposite side is called the upper side.

[0032] The toilet bowl 21 as a whole has a shape that is recessed downward. The toilet body 20 includes a drain portion 32 disposed at the lower end of the toilet bowl 21, a drain pipe 36 connected to the drain portion 32, and a drain port 34 opened to the drain portion 32. The drain portion 32 is recessed downward from the lower end portion 21u of the toilet bowl 21. The drain portion 32 is connected to the drain pipe 36 via the drain port 34. The drain pipe 36 extends upward from the drain port 34. The drain portion 32 bends downward at a bending position 36a and extends downward. The drain pipe 36 extends to the outside of the toilet portion 12.

[0033] The drain port 34 is arranged at a position behind the opening 14a of the toilet seat 14 in the front-to-back direction. The drain port 34 may be arranged at a position behind the 3 / 8 area from the rear end of the opening 14a of the toilet seat 14 when the opening 14a of the toilet seat 14 is divided into eight equal parts in the front-to-back direction (see Figure 2 ). The drain port 34 can be arranged at a position behind the position where the feces discharged by the user fall.

[0034] At the upper end of the toilet bowl 21, an upper edge 21e defining the upper end of the toilet bowl 21 is surrounded. An upper flange portion 30 is provided. The upper flange portion 30 is placed on the upper end of the toilet body 20. The upper flange portion 30 surrounds the upper edge 21e of the toilet bowl 21 at the upper end of the toilet bowl 21. The upper flange portion 30 protrudes from the upper edge 21e to the inner circumference in a manner that the upper edge 21e of the toilet bowl 21 is opposed to the surface of the toilet bowl 21. The lower surface 30a of the upper flange portion 30 is arranged parallel to the front-rear direction and the left-right direction.

[0035] (Shape of the potty)

[0036] Wash water supplied to the toilet bowl 21 is accumulated in the toilet bowl 21. The accumulated water is accumulated at the curved position 36a of the drain pipe 36. The surface of the toilet bowl 21 has a water accumulation area 21b below the water surface WF of the accumulated water and an upper area 21c above the water surface WF.

[0037] like Figure 6 As shown in FIG. 1 , the upper region 21c is above the water surface WF and surrounds the periphery of the water surface WF. The upper region 21c includes a front region 22, a side region 26, and a rear region 24. The front region 22 is Figure 6 The front area 22 is an area ahead of the front end WF1 of the water surface WF. The side area 26 is Figure 6 The area 26 is colored gray in the figure and extends from the rear end of the front area 22 along the left and right ends of the water surface WF to the rear. The side area 26 extends to the rear end WF2 of the water surface WF. The rear area 24 is Figure 6The area in FIG. 1 is drawn with a plurality of parallel horizontal lines, and is an area connecting the rear ends of the side areas 26 on the left and right sides along the rear end WF2 of the water surface WF.

[0038] Figure 2 A cross-sectional view perpendicular to the left-right direction and located in the center of the left-right direction of the toilet bowl 21. In the cross-sectional view perpendicular to the left-right direction and located in the center of the left-right direction of the toilet bowl 21, the front region 22 has: a straight shape 22a that inclines toward the rear, i.e., the water surface WF, as it moves downward from the upper edge 21e; ​​and a curved shape 22b that curves downward from the lower end of the straight shape 22a toward the water surface WF, i.e., the lower end of the upper region 21c. In the "curved shape that curves downward", in the cross-sectional view perpendicular to the left-right direction, the line segment representing the surface between any two points of the curved shape is located below the straight line connecting the two points. The straight shape 22a extends in the tangent direction of the curved shape 22b. The boundary between the straight shape 22a and the curved shape 22b has no height difference and is smoothly continuous. As shown in FIG. Figure 3 As shown, the front area 22 has a curved shape that curves downward in a cross section perpendicular to the front-to-back direction at any position in the front-to-back direction. The same is true for the front area 22 in a cross section perpendicular to the left-to-right direction at any position in the left-to-right direction of the toilet bowl 21. The front area 22 does not have a bulging shape upward.

[0039] In a cross section perpendicular to the left-right direction at the center of the toilet bowl 21, the water storage area 21b located below the front area 22 has a straight line shape that inclines toward the rear, that is, the water surface WF, as it goes downward.

[0040] The straight shape 22a has a plane that is inclined toward the water surface WF as it moves downward from the upper edge 21e in a cross section perpendicular to the front-to-back direction at any position in the front-to-back direction. The curved shape 22b curves downward from the lower end of the straight shape 22a to the water surface WF, that is, the lower end of the upper region 21c in a cross section perpendicular to the front-to-back direction at any position in the front-to-back direction.

[0041] In a modified example, in a cross section perpendicular to the left-right direction at the center of the toilet bowl 21 in the left-right direction, the front area 22 may have a shape other than the straight shape 22a and the curved shape 22b. For example, the front area 22 may have a straight shape 22a, a curved shape that curves downward at the middle position from the lower end of the straight shape 22a to the water surface WF, and a straight shape that tilts toward the water surface WF as it moves downward from the lower end of the curved shape to the water surface WF. For example, the front area 22 may have a curved shape that curves downward from the upper edge 21e. In the front area 22, curved shapes with different curvatures may be continuously arranged. The front area 22 may be composed of only one of the straight shape 22a and the curved shape 22b. The same is true for the front area 22 in a cross section perpendicular to the front-back direction. In the case where the front area 22 is composed of only the curved shape 22b and the water storage area 21b is composed of a straight shape, the radius of curvature of the front area 22 is smaller than the radius of curvature of the water storage area 21b. In a modified example, the water storage area 21b located below the front area 22 may have a curved shape that curves downward in a cross section perpendicular to the left-right direction at the center of the toilet bowl 21 in the left-right direction. In this case, the curvature radius of the front area 22 in the cross section perpendicular to the left-right direction at the center of the toilet bowl 21 in the left-right direction may be smaller than or equal to the curvature radius of the water storage area 21b.

[0042] like Figure 3 As shown, the side area 26 has a curved shape that is continuous from the front area 22 and bends downward in the front part in a cross section perpendicular to the front-back direction. The curved shape extends downward over the water surface WF and extends to the water storage area 21b. Figure 4 As shown, the side area 26 has a straight shape 26a that is inclined toward the water surface WF as it moves downward from the upper edge 21e in the rear portion, a curved shape 26b that curves downward from the lower end of the straight shape 26a to the middle position of the water surface WF, and a curved shape 26c that curves upward from the lower end of the curved shape 26b to the water surface WF. The curved shape 26c extends across the water surface WF to the water storage area 21b. The portion having the curved shape 26c is the rear portion, and the portion not having the curved shape 26c is the front portion. The boundary between the front portion and the rear portion may be the front end of the drainage portion 32.

[0043] In a modified example, the side region 26 may be entirely composed of at least one of the straight shape 26a and the curved shape 26b, or may not have the curved shape 26c. In this case, the water storage region 21b below the side region 26 may have a curved shape that curves upward.

[0044] like Figure 2As shown, in a cross section perpendicular to the left-right direction at the center of the toilet bowl 21 in the left-right direction, the rear area 24 has a straight shape 24a that is inclined toward the front, that is, the water surface WF as it moves downward from the upper edge 21e, a curved shape 24b that bends downward from the lower end of the straight shape 24a to the middle position of the water surface WF, and a curved shape 24c that bends upward from the lower end of the curved shape 24b to the water surface WF. The straight shape 24a can be parallel to the up-down direction. The rear area 24 is located at a position behind the rear end edge of the opening 14a of the toilet seat 14. As a result, it is difficult for the user to see the rear area 24.

[0045] (Water storage method)

[0046] The water surface WF of the water accumulated in the toilet bowl 21 is stable at the same height as the lower end of the curved position 36a where the drain pipe 36 extends upward and then curves downward. Figure 6 As shown, in a state where water is stored stably, if the toilet body 20 is observed from above, the area of ​​the water surface WF on the inner side of the upper flange portion 30 and the area outside the water surface WF, that is, the area ratio of the upper area 21c when observed from above, is the area of ​​the water surface WF: the area outside the water surface WF = 4:6. In a modified example, the area of ​​the water surface WF and the area outside the water surface WF can be larger than the area of ​​the water surface WF: the area outside the water surface WF = 4:6. For example, the area of ​​the water surface WF: the area outside the water surface WF = 4:6 to 10:0 can be used. On the inner side of the upper end edge 21e of the toilet bowl 21, the area of ​​the water surface WF: the area outside the water surface WF = 4:6 to 10:0 can be used.

[0047] like Fig.12 As shown, the water is filled from the water storage area 21b of the toilet bowl 21 to the bottom surface of the drainage portion 32. In the cross section perpendicular to the left-right direction at the center of the toilet bowl 21 in the left-right direction, at any point 1 / 8 to 3 / 8 from the rear end of the opening 14a when the opening 14a is divided into eight equal parts in the front-back direction, the vertical distance D1 from the upper end of the toilet body 20, that is, the upper end of the upper end flange 30 to the bottom surface of the toilet body 20 located vertically downward, that is, the lower end of the bowl 21 and the bottom surface of the drainage portion 32 is equal to the front-back distance D2 from the position P to the front edge F of the water. In a modified example, the distance D1 may be smaller than the distance D2.

[0048] like Figure 5As shown, when the toilet seat 14 is placed on the toilet body 20, when the toilet body 20 is viewed from above, the area of ​​the water surface WF is larger than the area of ​​the water surface WF: the area of ​​the water surface WF = 5:5 at the opening of the toilet seat 14. In a modified example, the area of ​​the water surface WF may be larger than the area of ​​the water surface WF: the area of ​​the water surface WF = 5:5 compared to the area other than the water surface WF. For example, the area of ​​the water surface WF: the area other than the water surface WF = 5:5 to 10:0 may be used.

[0049] (Structure of punching part)

[0050] The flushing portion 40 flushes the cleaning water in the water tank 18 toward the toilet bowl 21. Fig.13 As shown, the flushing unit 40 includes a pump 52, a switching valve 54, a plurality of connecting pipes 56a, 56b, 56c, 56d, and a plurality of flushing ports 42, 44, 46, 48. Fig.13 In FIG. 4 , the connection method of each part 42, 44, 46, 48, 52, 54, 56a, 56b, 56c, and 56d included in the punching portion 40 is shown. Fig.13 In FIG. 4 , flushing ports 42, 44, 46, and 48 indicate their respective locations. Fig.13 , the structures of the flushing ports 42, 44, 46, and 48 are not shown. When the cleaning water in the water tank 18 is flushed toward the toilet bowl 21, the cleaning water is sucked from the water tank 18 by the pump 52. The pump 52 increases the pressure of the cleaning water and sends it to the switching valve 54. The switching valve 54 connects the pump 52 with any one of the plurality of connecting pipes 56a, 56b, 56c, and 56d, and sends the cleaning water from the pump 52 to the connecting pipe connected to the pump 52. The pump 52 and the switching valve 54 are arranged at the rear of the toilet body 20.

[0051] When the washing water is allowed to flow, first, the switching valve 54 maintains a state in which the connecting pipe 56b connected to the flushing port 44 arranged on the left side is connected to the pump 52, and maintains a state in which the connecting pipes 56a, 56c, and 56d connected to the other flushing ports 42, 46, and 48 are not connected to the pump 52. The washing water pressurized by the pump 52 is flushed from the flushing port 44 to the toilet bowl 21 through the connecting pipe 56b.

[0052] like Fig.10 As shown, the flushing port 44 is arranged at the front end of the nozzle 45, and the nozzle 45 has a shape that expands in both the upward and downward directions from the connecting pipe 56b. Figure 4As shown, the toilet body 20 has a tubular opening 44a extending from the rear to the front along the inner surface of the toilet bowl 21. The nozzle 45 is arranged in the opening 44a. The flush port 44 has an elongated shape extending in the up-down direction. The ratio of the length of the flush port 44 in the short side direction to the length of the long side direction is 1:4. The ratio of the length of the flush port 44 in the short side direction to the length of the long side direction may also be either 1:2 and 1:3. The opening 44a has an elongated shape extending in the up-down direction. The ratio of the length of the opening 44a in the short side direction to the length of the long side direction is 1:4. The ratio of the length of the opening 44a in the short side direction to the length of the long side direction may also be either 1:2 and 1:3. As Fig.10 As shown in FIG. 1 , the washing water that reaches the nozzle 45 through the connecting pipe 56b flows in an upward and downward direction in accordance with the shape of the nozzle 45 as shown by the arrow. As a result, the washing water flushed out from the flushing port 44 flows straight from the flushing port 44 in parallel with the front-rear direction and flows in an upward and downward direction. The washing water flowing upward contacts the upper flange portion 30 and flows forward along the upper flange portion 30 at the upper edge 21e of the toilet bowl 21. Fig.11 As shown, the washing water rushes out from the flushing port 44 and the side area 26 in a direction roughly parallel to each other as shown by the arrow. The roughly parallel state can be parallel to the side area 26, that is, 0°. The state of rushing out in a roughly parallel state includes the state in which the flow direction of the washing water rushing out toward the side area 26 is rushed out at an angle of less than 30° relative to the side area 26. According to this structure, the pressure of the washing water rushing out from the flushing port 44 can be suppressed from being reduced due to the collision with the side area 26. The decrease in the flow rate of the washing water rushing out from the flushing port 44 can be suppressed. The flushing port 44 is arranged on the inner peripheral surface of the toilet bowl 21.

[0053] like Figure 7 As shown, the washing water flushed out from the flush port 44 flows toward the first area 21x in the upper area 21c of the toilet bowl 21. The first area 21x represented by a plurality of parallel oblique lines reaches the upper edge 21e from the flush port 44 to the front end of the toilet bowl 21. In other words, the washing water flowing in the first area 21x flows from the flush port 44 to the front end of the toilet bowl 21 toward the lower surface of the upper end flange portion 30. Thus, the washing water flowing in the first area 21x can clean the lower surface of the upper end flange portion 30 on the left side. The lower end of the first area 21x reaches the water surface WF where the water is stored. The first area 21x extends to the right side beyond the front end of the toilet bowl 21.

[0054] The shape and direction of the flushing port 44 and the pressure of the washing water brought by the pump 52 are adjusted so that the washing water flushed out from the flushing port 44 is maintained below 5.0 mm throughout the entire area of ​​the first area 21x. The pump 52 increases the pressure in such a way that the flow rate of the washing water flowing in the first area 21x is at least 0.5 m / s or more at a position 1.0 mm from the surface of the toilet bowl 21 throughout the entire area of ​​the first area 21x. The flow rate of the washing water in the thickness direction of the washing water is slowest on the surface of the toilet bowl 21 and gradually becomes faster as it moves away from the toilet bowl 21. Therefore, the washing water that is above 0.5 m / s at a position 1.0 mm from the surface of the toilet bowl 21 is also above 0.5 m / s on the surface of the washing water.

[0055] The switching valve 54 switches the connecting pipe 56b connected to the flushing port 44 arranged on the left side and the pump 52 from a connected state to a disconnected state. Then, the switching valve 54 maintains the connecting pipe 56a connected to the flushing port 42 arranged on the rear side and the pump 52 in a connected state, and maintains the other connecting pipes 56b, 56c, 56d in a non-connected state with the pump 52. The washing water pressurized by the pump 52 is flushed from the flushing port 42 to the toilet bowl 21 through the connecting pipe 56a.

[0056] The flushing port 42 is arranged at the upper end of the rear area 24. A sprinkler 42a is arranged at the flushing port 42. The sprinkler 42a has a plate-like member arranged so as to have a gap through which the washing water can pass in front of the flushing port 42. The washing water flushed out from the flushing port 42 collides with the sprinkler 42a and flows in a spreading manner in the vertical and horizontal directions.

[0057] like Fig. 9 As shown, the washing water flushed out from the flushing port 42 flows to the third area 21z covering the entire rear area 24. The lower end of the third area 21z reaches the water surface WF where the water is stored. The upper end of the third area 21z reaches the lower surface of the upper end flange portion 30. The third area 21z expands in the left and right directions across the rear area 24. The third area 21z has an area 21q that overlaps with a part at the rear end of the first area 21x. The area of ​​the area 21q is less than 1 / 2 of the area of ​​the first area 21x. The area of ​​the area 21q may also be less than 1 / 4 of the area of ​​the first area 21x. The area of ​​the area 21q is less than 1 / 2 of the area of ​​the third area 21z. The area of ​​the area 21q may also be less than 1 / 4 of the area of ​​the third area 21z.

[0058] After switching to a state where the connecting pipe 56b and the pump 52 are not connected, the switching valve 54 switches to a state where the connecting pipe 56a and the pump 52 are connected. That is, after the flushing of the washing water flowing in the first area 21x is completed, the washing water flowing to the third area 21z starts to be flushed out. Thus, when the washing water flows in the third area 21z, in the area overlapping with the first area 21x, it is possible to avoid a situation where the flow rate of the washing water flowing in the third area 21z is reduced by the washing water flowing in the first area 21x.

[0059] The switching valve 54 switches from a state in which the connecting pipe 56a and the pump 52 are connected to a state in which they are not connected. Then, the switching valve 54 maintains a state in which the connecting pipe 56c connected to the flushing port 46 disposed on the right side is connected to the pump 52, and maintains a state in which the other connecting pipes 56a, 56b, and 56d are not connected to the pump 52. The washing water pressurized by the pump 52 passes through the connecting pipe 56c and is flushed from the flushing port 46 to the toilet bowl 21.

[0060] The flushing port 46 is arranged at the front end of the nozzle 47 which is the same as the flushing port 44. The nozzle 47 is arranged at the opening 46a which is the same as the opening 44a. The flushing port 46, the opening 46a and the nozzle 47 are arranged plane-symmetrically with the flushing port 44 and the nozzle 45 at the center of the left-right direction of the toilet bowl 21 with respect to a plane perpendicular to the left-right direction. The washing water reaching the nozzle 47 through the connecting pipe 56c flows in an upward and downward direction in accordance with the shape of the nozzle 47. As a result, the washing water flushed out from the flushing port 44 flows straightly from the flushing port 46 in parallel with the front-back direction and flows in an upward and downward direction in an upward and downward direction. The washing water flowing upward contacts the upper flange portion 30 and flows forward along the upper flange portion 30 at the upper edge 21e of the toilet bowl 21.

[0061] like Figure 8 As shown, the cleaning water flushed out from the flush port 46 flows toward the second area 21y in the upper area 21c of the toilet bowl 21. In the second area 21y depicted by a plurality of points, the cleaning water flows from the flush port 46 to the front end of the toilet bowl 21 and reaches the upper edge 21e. In other words, the cleaning water flowing in the second area 21y flows from the flush port 46 to the front end of the toilet bowl 21 to the lower surface of the upper end flange portion 30. Thus, the cleaning water flowing in the second area 21y can clean the lower surface of the upper end flange portion 30 on the right side. The lower end of the second area 21y reaches the water surface WF where the water is stored. The second area 21y extends to the left side beyond the front end of the toilet bowl 21. The first area 21x and the second area y extend in opposite directions beyond the front end of the toilet bowl 21 in the left-right direction, respectively. The first area 21x and the second area y have areas 21p that overlap with each other. The second area 21y and the third area z have areas 21r that overlap with each other (refer to Fig. 9). The area of ​​the region 21p is less than 1 / 2 of the area of ​​the first region 21x. The area of ​​the region 21p may also be less than 1 / 4 of the area of ​​the first region 21x. The area of ​​the region 21p is less than 1 / 2 of the area of ​​the second region 21y. The area of ​​the region 21p may be less than 1 / 4 of the area of ​​the second region 21y. The area of ​​the region 21r is less than 1 / 2 of the area of ​​the second region 21y. The area of ​​the region 21r may be less than 1 / 4 of the area of ​​the second region 21y. The area of ​​the region 21r is less than 1 / 2 of the area of ​​the third region 21z. The area of ​​the region 21r may be less than 1 / 4 of the area of ​​the third region 21z.

[0062] The shape and direction of the flushing port 46 and the pressure of the washing water brought by the pump 52 are adjusted so that the thickness of the washing water flushed out from the flushing port 46 is maintained at 5.0 mm or less throughout the entire area of ​​the second area 21y. The pump 52 increases the pressure so that the flow rate of the washing water flowing in the second area 21y becomes 0.5 m / s or more at least instantaneously at a position 1.0 mm from the surface of the toilet bowl 21 throughout the entire area of ​​the second area 21y.

[0063] After switching to a state where the connecting pipe 56a and the pump 52 are not connected, the switching valve 54 is switched to a state where the connecting pipe 56c and the pump 52 are connected. That is, after the flushing of the washing water flowing in the third area 21z is completed, the washing water flowing to the second area 21y starts to be flushed out. As a result, when the washing water flows in the second area 21y, in the area overlapping with the third area 21z, it is possible to avoid the situation where the flow rate of the washing water flowing in the third area 21z is reduced by the washing water flowing in the second area 21y. Similarly, at the moment when the washing water starts to flow in the second area 21y, the supply of washing water to the first area 21x is stopped. In the area overlapping with the first area 21x, it is possible to avoid the situation where the flow rate of the washing water flowing in the second area 21y is reduced by the washing water flowing in the first area 21x.

[0064] The switching valve 54 switches from the state of connecting the connecting pipe 56c and the pump 52 to the state of not connecting. Then, the switching valve 54 maintains the state of connecting the connecting pipe 56d connected to the flushing port 48 arranged at the front end of the drainage part 32 and the pump 52, and maintains the state of not connecting the other connecting pipes 56a, 56b, 56c and the pump 52. The washing water pressurized by the pump 52 is flushed from the flushing port 48 to the toilet bowl 21.

[0065] The washing water flushed from the flush port 44 washes the entire area of ​​the first area 21x. The washing water flushed from the flush ports 42 and 46 other than the flush port 44 washes a portion of the first area 21x. The first area 21x is washed by the washing water flushed from the flush ports 42, 44, and 46, respectively. More than 1 / 4 of the first area 21x is washed only by the washing water flushed from the flush port 44. Alternatively, more than 1 / 2 of the first area 21x is washed only by the washing water flushed from the flush port 44. Similarly, the second area 21y is washed by the washing water flushed from the flush ports 42, 44, and 46, respectively. More than 1 / 4 of the second area 21y is washed only by the washing water flushed from the flush port 46. Alternatively, more than 1 / 2 of the second area 21y is washed only by the washing water flushed from the flush port 46. Similarly, the third area 21z is washed by the washing water flushed from the flush ports 42, 44, and 46, respectively. A 1 / 4 or more area of ​​the third area 21z is cleaned only by the cleaning water flushed out from the flush water port 42. A 1 / 2 or more area of ​​the third area 21z may be cleaned only by the cleaning water flushed out from the flush water port 42.

[0066] The flushing port 48 is disposed in a through hole provided in the toilet body 20. Excrement and the like washed by the flushing water flushed out from the flushing ports 42, 44, and 46 are accumulated in the drain portion 32. The flushing water flushed out from the flushing port 48 causes the excrement and the like accumulated in the drain portion 32 to flow from the drain port 34 to the drain pipe 36 together with the accumulated water.

[0067] (Effect)

[0068] The flushing portion 40 allows the washing water to flow from each flushing port 44, 46 in the left and right directions to the upper edge 21e. The washing water flushed from the flushing port 44 flows over the front end of the toilet bowl 21 from the center in the left and right directions to the right side at the upper edge 21e. The washing water flushed from the flushing port 46 flows over the front end of the toilet bowl 21 from the center in the left and right directions to the left side at the upper edge 21e. As a result, the washing water can be washed to the upper edge 21e of the toilet bowl 21 in the entire area on the front side of the flushing ports 44, 46.

[0069] In the flushing ports 44 and 46, the cleaning water is flushed upward by the nozzles 45 and 47. The cleaning water can flow toward the upper edge 21e. In the flushing port 44, the cleaning water is flushed downward by the nozzle 45. The cleaning water can flow appropriately toward the first area 21x. In the flushing port 46, the cleaning water is flushed downward by the nozzle 47. The cleaning water can flow appropriately toward the second area 21y. In the modified example, the shapes of the nozzles 45 and 47 and the flushing ports 44 and 46 can be any shape as long as the cleaning water is flushed upward and downward from the flushing ports 44 and 46.

[0070] A sprinkler 42a is disposed at the flushing port 42. The washing water flushed out from the flushing port 42 flows in an expanding manner through the sprinkler 42a. The washing water flushed out from the flushing port 42 reaches the lower surface of the upper flange portion 30. Thus, the entire area behind the flushing ports 44 and 46 can be washed by the washing water up to the upper edge 21e of the toilet bowl 21.

[0071] The washing water flushed out from the flushing ports 42, 44, and 46 can clean the entire circumference of the toilet bowl 21 to the upper edge 21e. The lower surface of the upper flange 30 can be cleaned throughout the entire circumference of the upper flange 30. In a modified example, the washing water may flow at least 1 / 2 to 1 / 4 of the entire circumference of the upper edge 21e. In a modified example, the washing water may flow at a flow rate of 0.5 m / s or more at least 1 / 2 to 1 / 4 of the entire circumference of the upper edge 21e.

[0072] The front area 22 of the toilet bowl 21 is composed of a straight shape 22a and a curved shape 22b. In the front area 22, in a cross section perpendicular to the left-right direction at any position in the left-right direction, it is composed of a straight shape 22a and a curved shape 22b that bends downward. The front area 22 does not have a shape that bulges upward. The same applies to any position in the front-back direction. In the front area 22, there is no shape that protrudes upward that hinders the flow of cleaning water. According to this structure, cleaning water flows smoothly from the top to the bottom. In a modified example, the front area 22 may also be composed of a straight shape 22a and a curved shape 22b in the left-right direction within the length range of the drain portion 32. In this case, the front area 22 may also have a shape that bulges upward in the portion that is closer to the outside than the length range of the drain portion 32 in the left-right direction.

[0073] In the front part of side area 26, there is no shape protruding upward that would hinder the flow of washing water, similarly to front area 22. With this structure, washing water flows smoothly from above to below.

[0074] The front area 22 and the front part of the side area 26 are easily contaminated by excrement etc. According to the toilet device 10, the flow rate of the washing water can be suppressed from decreasing in the front area 22 and the front part of the side area 26 where contamination is easily contaminated, and excrement etc. can be easily washed away by the washing water.

[0075] The washing water flows at a surface velocity of 0.5 m / s or more throughout the entire area of ​​each of the first area 21x and the second area 21y. Thus, excrement and the like can be easily washed by the washing water. In the front part of the front area 22 and the side area 26, the decrease in flow velocity is suppressed, so the initial velocity of the washing water flushed out from the flushing ports 44 and 46 can be suppressed. In a modified example, the washing water can flow at a surface velocity of 0.6 m / s, 0.7 m / s, 0.8 m / s, 0.9 m / s, and 1.0 m / s or more. In a modified example, the washing water can flow at a surface velocity of 0.5 m / s or more in a part of each of the first area 21x and the second area 21y, for example, at the upper edge 21e.

[0076] At a distance of 1.0 mm from the surface of the toilet bowl 21, the flow rate of the cleaning water is maintained at 0.5 m / s or more. Excrement and the like attached to the toilet bowl 21 are mostly at a height of 1.0 mm from the surface of the toilet bowl 21. By maintaining the flow rate at a distance of 1.0 mm from the surface of the toilet bowl 21, excrement and the like attached to the toilet bowl 21 can be easily cleaned. In a modified example, the flow rate of the cleaning water at a distance of 1.0 mm from the surface of the toilet bowl 21 may be any one of 0.6 m / s, 0.7 m / s, 0.8 m / s, 0.9 m / s and 1.0 m / s or more.

[0077] The thickness of the cleaning water flowing in the toilet bowl 21 is suppressed to be less than 5.0 mm. The amount of cleaning water used for cleaning the toilet bowl 21 can be suppressed. In the case where dirt such as excrement adheres to the toilet bowl 21, the dirt can be cleaned by flowing the cleaning water near the bonding surface with the toilet bowl 21. Therefore, even if the thickness of the cleaning water is set to be less than 5.0 mm, a decrease in the cleaning ability can be avoided. In a modified example, the thickness of the cleaning water flowing in the toilet bowl 21 is suppressed to be less than any one of 3.0 mm, 4.0 mm, 6.0 mm, and 7.0 mm.

[0078] For water storage, when observing the upper area 21c from above, the area of ​​the water surface WF: the area outside the water surface WF = 4:6. In addition, at the opening of the toilet seat 14, the area of ​​the water surface WF: the area outside the water surface WF = 5:5. According to this structure, by increasing the area of ​​the water surface WF, it is possible to prevent excrement from directly contacting the toilet bowl 21 and adhering to the toilet bowl 21. In a modified example, when observing the toilet body 20 from above, the area of ​​the water surface WF: the area outside the water surface WF = may not be between 4:6 and 10:0. For example, instead of 10:0, it may be any one of 9:1, 8:2, 7:3, 6:4 and 5:5, and instead of 4:6, it may be any one of 5:5, 6:4, 7:3, 8:2 and 9:1. In a modified example, when the toilet seat 14 is placed on top of the toilet body 20 and observed from the opening of the toilet seat 14, the ratio of area of ​​the water surface WF: area outside the water surface WF = 5:5 to 10:0 may be different. For example, 10:0 may be replaced by any one of 9:1, 8:2, 7:3 and 6:4, and 5:5 may be replaced by any one of 6:4, 7:3, 8:2 and 9:1.

[0079] The vertical distance D1 from the upper end of the toilet body 20 to the position P is equal to the front-to-back distance D2 from the position P to the front edge F of the water reservoir. If the feces excreted by the user contacts the surface of the toilet bowl 21 and the drainage portion 32, they are often poured forward along the shape of the toilet bowl 21. By setting the distance D1 to be less than the distance D2, it is possible to prevent the feces from passing over the water reservoir and directly contacting the toilet bowl 21.

[0080] (Second embodiment)

[0081] like Fig.14 As shown, the toilet device 10 of this embodiment may also be provided with four opening and closing valves 252, 254, 256, 258 instead of the switching valve 54. The four opening and closing valves 252, 254, 256, 258 are respectively arranged at the four connecting pipes 56a, 56b, 56c, 56d. The four opening and closing valves 252, 254, 256, 258 are respectively switched to open and close the connecting pipes 56a, 56b, 56c, 56d respectively provided with the four opening and closing valves 252, 254, 256, 258. When washing water is supplied to the toilet bowl 21, the opening and closing valves 252, 254, 256, 258 respectively switch the four connecting pipes 56a, 56b, 56c, 56d from the open state to the closed state in sequence, thereby flushing out the washing water in the order of the flushing ports 44, 42, 46, 48. The other structures are the same as those of the first embodiment.

[0082] (Third Embodiment)

[0083] like Fig.15 As shown, the toilet device 10 of this embodiment includes a motor 345 for changing the direction of the nozzle 45, and an operation button for the user to change the direction of the nozzle 45. In the default state, the nozzle 45 is oriented Fig.10 When the user operates the action button, Fig.15 As shown by the dotted line, the nozzle 45 moves downward. In this case, the washing water flushed from the flushing port 44 flows only to a portion behind the first area 21x. According to this structure, the washing water can flow toward the part where dirt is attached. The nozzle 47 can also be configured with a motor that changes direction in the same way as the nozzle 45.

[0084] (Fourth Embodiment)

[0085] In the toilet device 10 of the present embodiment, the pump 52 controls the flow rate of the washing water by adjusting the pressure of the washing water. The toilet device 10 is provided with an operation button for the user to adjust the flow rate of the washing water. When the user operates the operation button, the pump 52 causes the washing water of the flow rate adjusted by the user to be flushed out from at least one of the flushing ports 42, 44, 46, 48. According to this structure, the flow rate of the washing water can be adjusted according to the degree of dirtiness of the toilet bowl 21. In a modified example, the pump 52 can also change the flow rate of the washing water flushed out from at least one of the flushing ports 42, 44, 46, 48 during the period from the start to the end of the supply of the washing water.

[0086] The above is a description of specific examples of the technology disclosed in this specification. These are only examples and do not limit the claims. The technology described in the claims includes various modifications and changes to the specific examples illustrated above. The following lists the modified examples of the above embodiment.

[0087] (1) The number of flushing ports disposed in the toilet device 10 is not limited. For example, the number of flushing ports may be three or less, or five or more. The position of the flushing ports is also not limited. For example, the flushing ports may be disposed near the front end of the toilet body 20 .

[0088] (2) The upper flange 30 may not be provided. In this case, the lower surface of the toilet seat 14 may be in contact with the upper edge 21e. Washing water may flow toward the lower surface of the toilet seat 14. The lower surface of the toilet seat 14 may be washed by the washing water. In this modification, the toilet seat 14 is an example of a "protrusion". The protrusion may go around the upper edge of the toilet bowl 21. In other words, the upper edge 21e may be provided at the upper end of the toilet body 20. The upper edge 21e may be provided below the upper end of the toilet body 20. For example, in the case where a waterproof component that intercepts the flow of washing water is provided on the toilet body 20 like the upper flange 30, the upper edge 21e may be provided below the waterproof component. For example, in the case where the toilet body 20 has a folded portion at the upper end that folds back downward toward the toilet bowl 21, in the case where the lower end of the folded portion functions as a waterproof component, the upper edge 21e may be consistent with the lower end of the folded portion. When the lower end of the folded portion is arranged with a gap between the toilet bowl 21 and the upper end of the folded portion, that is, the upper end portion of the toilet bowl body 20 functions as a waterproof member, the upper end edge 21e may coincide with the upper end portion of the toilet bowl body 20. The upper end edge 21e may also be the upper end portion of the area designed so that the washing water flows.

[0089] (3) If Fig.16 and Fig.17 As shown, the shape near the upper edge 21e of the toilet bowl 21 may also have a shape in which the lower part of the upper edge 21e is recessed more than the upper edge 21e. In these modified examples, the upper flange portion 30 may be provided or not provided. When the upper flange portion 30 is not provided, the toilet seat 14 may be in contact with the upper edge 21e as in the modified example (2).

[0090] (4) The flushing portion 40 may not include at least one of the flushing ports 42 , 44 , 46 , and 48 disposed in the toilet body 20 . The flushing portion 40 may flush flush water from the functional portion 16 .

[0091] (5) After flushing water starts to be flushed out from flushing port 44, flushing portion 40 may start flushing out washing water from at least one of flushing ports 42 and 46 after the flow rate of washing water flowing in first area 21x becomes either less than 1 / 2 or less than 1 / 4 of the maximum flow rate. The flushing order of flushing ports 42, 44, and 46 is not particularly limited.

[0092] (6) Flushing portion 40 may start flushing out flush water from flush port 46 when flushing out flush water from flush port 44. The flushing water flushed out from flush port 44 may merge with the flushing water flushed out from flush port 46 at toilet bowl 21, for example, front area 22.

[0093] (7) The number and position of the flushing ports arranged in the flushing portion 40 are not particularly limited. For example, the flushing portion 40 may have only one flushing port arranged at a position closer to the right than the center of the toilet bowl 21 in the left-right direction and closer to the front than the drainage portion 32. In this case, the flushing port may also flush the cleaning water toward the rear. For example, the flushing portion 40 may have one flushing port each at a position closer to the left and right than the center of the toilet bowl 21 in the left-right direction, for a total of two flushing ports. The flushing port of one of the two flushing ports may also be arranged at a position closer to the front than the center of the toilet bowl 21 in the front-to-back direction. The flushing port of the other of the two flushing ports may be arranged at a position closer to the rear than the center of the toilet bowl 21 in the front-to-back direction. The two flushing ports may also face either clockwise or counterclockwise when viewed from above, and flush the cleaning water in the same direction.

[0094] The technical elements described in this specification or drawings can be used alone or in various combinations to achieve technical practicality, and are not limited to the combinations described in the claims at the time of application. The technology exemplified in this specification or drawings can achieve multiple purposes at the same time, and achieving one of the purposes itself has technical practicality.

[0095] Description of Reference Numerals

[0096] 10: toilet device, 12: toilet part, 14: toilet seat, 14a: opening, 20: toilet body, 21: toilet bowl, 21b: water storage area, 21c: upper area, 21e: upper edge, 21u: lower end, 21x: first area, 21y: second area, 21z: third area, 22: front area, 22a: straight shape, 22b: curved shape, 24: rear area, 24a: straight shape, 24b: curved shape, 24c: curved shape, 26: lateral area, 26a: straight shape, 26b: curved shape, 26c: curved shape, 30: upper end flange portion, 32: drainage portion, 34: drainage outlet, 36: drainage pipe, 36a: curved position, 40: flushing portion, 42, 44, 46, 48: flushing outlet, 42a: sprinkler, 45, 47: nozzle, 52: pump, 54: switching valve, 56: connecting pipe, 56a: connecting pipe, 56b: connecting pipe, 56c: connecting pipe, 56d: connecting pipe.

Claims

1. A toilet device, characterized in that: have: A toilet body having a toilet bowl; a flushing portion for causing the cleaning water to flow on the surface of the toilet bowl; The flushing portion causes the cleaning water to flow at a flow velocity of 0.5 m / s or more on the surface of the cleaning water.

2. The toilet device according to claim 1, wherein: The flushing portion causes the flushing water to flow on the surface of the toilet bowl in a specific area with a thickness of 5.0 mm or less.

3. The toilet device according to claim 1 or 2, wherein: The flushing portion causes the cleaning water to flow at a flow rate of 0.5 m / s or more on the surface of the cleaning water at a position 1.0 mm from the surface of the toilet bowl in a specific area.

4. The toilet device according to any one of claims 1 to 3, wherein: The flushing portion flushes the washing water at an angle ranging from 0° relative to the surface of the toilet bowl to 30° toward the surface.

5. The toilet device according to any one of claims 1 to 4, wherein: For the punching portion, A flushing port is provided on either side of the toilet bowl relative to the center in the left-right direction. The cleaning water is caused to flow toward the other left or right side relative to the left-right center of the toilet bowl at a surface flow velocity of 0.5 m / s or more.

6. The toilet device according to any one of claims 1 to 5, wherein: The flushing portion allows the cleaning water to flow to the surface of the water in the toilet bowl while maintaining a flow velocity of the cleaning water on the surface of the cleaning water at a level of 0.5 m / s or more.

7. The toilet device according to any one of claims 1 to 6, wherein: The flushing portion flushes the washing water toward the downward direction.

8. The toilet device according to any one of claims 1 to 7, wherein: The flushing portion flushes out the washing water in a direction along the upper end edge of the toilet bowl so that the washing water flows along the upper end edge.

9. The toilet device according to any one of claims 1 to 8, wherein: The toilet body has a drainage portion that is recessed downward from the bottom of the toilet bowl. The toilet bowl has a water storage area extending from the upper end of the drainage portion to the surface of the water stored in the toilet bowl in the vertical direction, and an upper area extending from the upper end of the water storage area to the upper edge of the toilet bowl. In a cross section perpendicular to the left-right direction at the center of the toilet bowl in the left-right direction, a surface of the upper region forward of the water storage area is composed of at least one of a downwardly curved shape and a straight line shape inclined downward toward the water surface of the stored water.

10. The toilet device according to any one of claims 1 to 9, wherein: When the toilet bowl is viewed from above, a ratio of a first area of ​​a water surface of the retained water stored in the toilet bowl to a second area of ​​the retained water other than the water surface is 4:6 to 10:

0.

11. The toilet device according to any one of claims 1 to 10, wherein: For the punching portion, Flushing the cleaning water in multiple directions so that the cleaning water flows on the surface of the toilet bowl; The washing water is caused to flow on the surface of the toilet bowl by at least one of utilizing the pressure of the washing water supplied from the supply pipe extending from the water supply path to flow the washing water on the surface of the toilet bowl and causing the washing water pressurized by a pump to flow on the surface of the toilet bowl, flushing the washing water in a first direction among the plurality of directions so that the washing water flows in a first area of ​​the surface of the toilet bowl, The washing water is flushed out in a second direction among the plurality of directions so that the washing water flows in a second area of ​​the surface of the toilet bowl that is different from the first area.

12. A toilet device, characterized in that: have: A toilet body having a toilet bowl; A flushing portion flushes out the cleaning water in multiple directions so that the cleaning water flows on the surface of the toilet bowl; For the punching portion, The washing water is caused to flow on the surface of the toilet bowl by at least one of utilizing the pressure of the washing water supplied from the supply pipe extending from the water supply path to flow the washing water on the surface of the toilet bowl and causing the washing water pressurized by a pump to flow on the surface of the toilet bowl, flushing the washing water in a first direction among the plurality of directions so that the washing water flows in a first area of ​​the surface of the toilet bowl, The washing water is flushed out in a second direction among the plurality of directions so that the washing water flows in a second area of ​​the surface of the toilet bowl that is different from the first area.

13. The toilet device according to claim 12, wherein: For the punching portion, The washing water is caused to flow over the entire first area at a surface flow velocity of 0.5 m / s or more. The washing water is caused to flow over the entire second region at a flow velocity of 0.5 m / s or more on the surface of the washing water.

14. The toilet device according to any one of claims 12 to 13, wherein: The toilet bowl is composed of at least one of a shape curved downward and a planar shape inclined downward toward the water surface of the stored water in a cross section perpendicular to the left-right direction at the center of the toilet bowl in the left-right direction, in front of the water surface of the stored water.

15. The toilet device according to any one of claims 12 to 14, wherein: The flushing portion starts flushing the washing water in the first direction at a first time, and starts flushing the washing water in the second direction at a second time different from the first time.

16. The toilet device according to claim 15, wherein: The flushing portion starts flushing the washing water in the second direction at the second timing when the flow rate of the washing water flushing in the first direction is lower than the flow rate of the washing water flushing in the second direction.

17. The toilet device according to any one of claims 12 to 16, wherein: The flushing portion includes a valve device, which is capable of switching between a state in which the cleaning water is flushed out in the first direction and a state in which the cleaning water is not flushed out in the first direction. The valve device is capable of switching between a state in which the cleaning water is flushed out in the second direction without flushing out in the first direction, and a state in which the cleaning water is flushed out in the first direction but is not flushed out in the second direction.

18. The toilet device according to claim 17, wherein: The valve device comprises: a first switching valve for switching between a state in which the washing water is flushed out in the first direction and a state in which the washing water is not flushed out in the first direction; The second switching valve switches between a state in which the washing water is flushed out in the second direction and a state in which the washing water is not flushed out in the second direction.

19. The toilet device according to any one of claims 12 to 18, wherein: The first region and the second region have a mutually overlapping portion.

20. The toilet device according to any one of claims 12 to 19, wherein: The punching portion comprises: a first flushing port for flushing out cleaning water in the first direction; a second flushing port for flushing out cleaning water in the second direction; The first flush port is arranged at a position to the left of the center of the toilet bowl in the left-right direction. The second flush port is arranged on the right side of the center of the toilet bowl in the left-right direction.

21. The toilet device according to any one of claims 12 to 20, wherein: The flushing portion includes a flow rate changing portion that changes a maximum flow rate from the start to the end of flushing of the washing water.

22. The toilet device according to any one of claims 12 to 21, wherein: The flushing unit includes a mode switching unit that switches between a first mode for flushing the washing water in the first direction so that the washing water flows throughout the first area and a second mode for flushing the washing water in the first direction so that the washing water flows in a portion of the first area.

23. The toilet device according to any one of claims 12 to 22, wherein: The flushing portion flushes out the washing water in a direction along the upper end edge of the toilet bowl so that the washing water flows along the upper end edge.

24. The toilet device according to any one of claims 12 to 23, wherein: The toilet body has a drainage portion that is recessed downward from the bottom of the toilet bowl. The toilet bowl has a water storage area extending from the upper end of the drainage portion to the surface of water stored in the toilet bowl in the vertical direction, and an upper area extending from the upper end of the water storage area to the upper edge of the toilet bowl. In a cross section perpendicular to the left-right direction at the center of the toilet bowl in the left-right direction, a surface of the upper region forward of the water storage area is composed of at least one of a downwardly curved shape and a straight line shape inclined downward toward the water surface of the stored water.

25. The toilet device according to any one of claims 12 to 24, wherein: When the toilet bowl is viewed from above, a ratio of a first area of ​​a water surface of the retained water stored in the toilet bowl to a second area of ​​the retained water other than the water surface is 4:6 to 10:

0.

26. The toilet device according to any one of claims 12 to 25, wherein: The flushing portion causes the cleaning water to flow at a flow velocity of 0.5 m / s or more on the surface of the cleaning water.

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