JP7457933B2 - Flush toilets and toilet devices - Google Patents

Description

The present disclosure relates to flush toilets and toilet bowl devices.

Patent Document 1 discloses a flush toilet bowl. In the flush toilet disclosed in Patent Document 1, the toilet drainage channel communicates with the downstream side of the ascending flow channel that communicates with the lower part of the toilet bowl portion and extends upward. The toilet bowl part, the ascending channel, and the toilet bowl drainage channel are integrally formed of ceramic and constitute the main part of the toilet bowl body of the flush toilet.

The toilet bowl part forms a rim passageway at the upper periphery. In a flush toilet, when the toilet is flushed, the flush water stored in the flush tank flows out into the rim passageway of the toilet bowl. The flushing water that has flowed into the rim passageway gradually flows down onto the surface of the toilet bowl while flowing in one direction through the rim passageway. Therefore, in a plan view of the toilet bowl section, the flushing water flows down the surface of the toilet bowl section while swirling in one direction, and flows into the ascending channel. The ascending flow path rises diagonally upward toward the rear of the toilet bowl body.

In the flush toilet disclosed in Patent Document 1, when flush water is stored in the toilet bowl, the space inside the toilet bowl and the space on the downstream side of the toilet drainage channel are separated from each other in the toilet bowl. It is divided by the stored wash water.

However, when draining water, the space inside the toilet bowl portion and the space on the downstream side of the toilet drainage channel communicate with each other.

JP2014-95206A

The present disclosure was invented in view of the above-mentioned conventional problems, and an object of the present disclosure is to provide a flush toilet and a toilet bowl device in which the space inside the bowl portion and the space on the downstream side of the drain port are difficult to communicate with each other.

In order to solve the above problems, one embodiment of a flush toilet according to the present disclosure includes a bowl portion. The bowl portion has a bowl surface that receives dirt and washing water, and is open upward. The bowl portion has a drain port in a bottom portion facing in a discharge direction for discharging the washing water from the bowl portion. A collision surface is provided at a peripheral edge of the drain port on the bowl surface, with which the wash water collides in a direction opposite to the discharge direction.

A toilet device according to one embodiment of the present disclosure includes the flush toilet, a movable trap device, and a control section. The movable trap device is disposed on the downstream side of the drain port, and the downstream end of the trap tube moves upward to store the wash water in the bowl part, and the downstream end of the trap tube moves upward to collect the wash water. It is possible to switch between a state in which the washing water in the bowl portion is discharged by moving downward. The control unit controls the movable trap device.

In the flush toilet and toilet device according to the present disclosure, it is difficult for the space within the bowl portion to communicate with the space on the downstream side of the drain port.

FIG. 1 is a plan view of a toilet device according to one embodiment. FIG. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a sectional view taken along line BB in FIG. FIG. 4 is a plan view of the bowl portion of the flush toilet of the above toilet device. 5A and 5B are cross-sectional views of the main part of the movable trap device of the toilet bowl apparatus, showing a state in which the downstream end of the trap cylinder of the movable trap device is positioned upward and downward, respectively. FIG. 6 is a block diagram showing a control system of the above toilet device. FIG. 7 is a perspective view of the toilet device in a cutaway state.

The present disclosure relates to a flush toilet and a toilet bowl device, and more particularly to a flush toilet and a toilet bowl device that includes a bowl portion that opens upward and has a bowl surface that receives filth and flush water.

Hereinafter, a flush toilet and a toilet bowl device according to one embodiment will be described based on FIGS. 1 to 7. The toilet device includes a flush toilet 1, a movable trap device 8 (see FIG. 5), and a control section 15 (see FIG. 6).

As shown in FIGS. 1 to 4, the flush toilet 1 includes a bowl part 2 and a rim part 3.

The inner surface of the bowl portion 2 serves as a bowl surface 20 for receiving dirt and washing water, and is open upward. The bowl portion 2 has a bottom portion 21 at its center, and a drain port portion 22 is provided at the bottom portion 21. Note that the bottom portion 21 does not need to be formed in the exact center of the bowl portion 2.

Here, front, rear, left, and right are defined as shown in FIGS. 1 to 4. In the flush toilet bowl 1, the orientation of the user sitting on the toilet seat (not shown) is assumed in the design, and the direction toward which the user sitting on the toilet seat faces is defined as the front. The rear, left, and right sides are determined relative to the front.

As shown in FIG. 2, the drain port portion 22 is the lowest portion of the bottom portion 21, and is a portion to which the drain tube portion 5 is connected from the rear. The drain cylinder part 5 is integrally connected to the bowl part 2 so that the internal space of the drain cylinder part 5 is continuous with the reservoir recess 221 which is the internal space of the drain port part 22. The downstream end of the reservoir water concave portion 221 in the bottom portion 21 of the bowl portion 2 becomes the drain port 220 of the bowl portion 2. The drain port 220 faces a discharge direction 222 for discharging washing water from the bowl part 2. In this embodiment, the drain port 220 is opened so as to face rearward. Note that the direction in which the drain port 220 opens (ie, the discharge direction 222) is rearward in this embodiment, but is not limited to the rearward direction. That is, the discharge direction 222 may include one or more of leftward, rightward, upward, and downward components.

The rear end opening of the drain tube portion 5 is open toward the rear. A movable trap device 8 is provided on the downstream side of the drain port 220 (particularly on the downstream side of the drain pipe section 5) for discharging the accumulated water and filth in the bowl section 2.

As shown in FIGS. 5A and 5B, the movable trap device 8 includes a trap cylinder 81 and a trap drive section 82 that drives the trap cylinder 81.

The trap tube 81 has a curved cylindrical shape. The trap tube 81 is made of a material such as rubber or resin that is expandable and deformable and does not have water permeability. The upstream end of the trap tube 81 is connected to the downstream end of the drain tube section 5, and the inside of the trap tube 81 and the inside of the bowl section 2 communicate with each other. The downstream end of the trap tube 81 serves as an outlet 80 for cleaning water, dirt, and the like.

The trap drive unit 82 includes a drive source such as a motor, and a power transmission unit 822 that moves the downstream end opening up and down using power generated by the drive source. An arm serving as a power transmission section 822 is connected to an output shaft 821 of a drive source consisting of a motor, and as the arm rotates, the downstream side of the trap tube 81 moves up and down, and the direction of the outlet 80 changes. As shown in FIG. 6, the movable trap device 8 (particularly the trap drive section 82) is controlled by the control section 15.

The control unit 15 is composed of, for example, a microcomputer, and controls the operation of the movable trap device 8 and other elements by executing a program stored in a ROM (Read Only Memory). It can be used as appropriate, and detailed explanation will be omitted.

The toilet device is equipped with a flush water supply unit 16. The flush water supply unit 16 supplies flush water into the bowl portion 2. Although not shown in the figure in this embodiment, the flush water supply unit 16 is equipped with a water supply passage connected to the upstream end of the water supply pipe 14 (see Figures 3 and 4) and an on-off valve provided midway through the water supply passage. The upstream end of the water supply passage is connected to a water source such as a water main. The water supply pipe 14 is provided at the rear of the right side of the upper part of the bowl portion 2. In this embodiment, the on-off valve is configured as a solenoid valve, but the on-off valve does not have to be configured as a solenoid valve. The flush water supply unit 16 (particularly the on-off valve) is controlled by the control unit 15.

In the movable trap device 8, as shown in FIG. 5A, the downstream end of the trap tube 81 moves upward and the outlet 80 faces upward (although it does not have to be strictly vertically upward), and the bowl Reservoir water can be formed within the portion 2. In this state, when the wash water supplied from the wash water supply section 16 is stored as reservoir water in the bowl section 2, a trap is formed and backflow of odor from the downstream side of the drain port 220 is suppressed.

Further, as shown in FIG. 5B, when the downstream end of the trap tube 81 moves downward and the outlet 80 faces downward (although it does not have to be strictly vertically downward), accumulated water and filth are deposited in the bowl part 2. is discharged.

Note that such a movable trap device 8 does not need to be provided, and a fixed trap tube 81 may be connected to the rear end of the drain tube portion 5.

The flush toilet 1 is integrated with a movable trap device 8 to constitute a toilet device. In addition to the movable trap device 8, the toilet device may be appropriately equipped with various devices such as a deodorizing device and a private parts cleaning device.

A rim portion 3 is provided at the upper edge of the bowl portion 2. A toilet seat is placed on the upper surface 31 of the rim portion 3. As shown in FIGS. 2 and 3, the inner edge of the rim portion 3 is located inside the upper end portion of the bowl portion 2 (the upper edge opening 201 of the bowl surface 20) in plan view.

Furthermore, in this embodiment, as shown in Figures 2 and 3, a skirt portion 11 made of resin is integrally fixed to the rim portion 3. The skirt portion 11 covers the front, left, and right sides of the bowl portion 2. In this embodiment, the bowl portion 2, the rim portion 3, and the skirt portion 11 are integrally formed to constitute the flush toilet 1.

Furthermore, in this embodiment, as shown in FIG. 3, a metal frame part 12 is provided to supplementarily support the bowl part 2, rim part 3, and skirt part 11, which are integrally formed of resin.

In this embodiment, the flush toilet bowl 1 is provided with the rim portion 3 and the skirt portion 11, but the flush toilet bowl 1 may not be provided with the rim portion 3 and the skirt portion 11.

As shown in FIG. 4, the bowl surface 20 has, as a part thereof, a surface for causing cleaning water passed in the circumferential direction of the bowl (arrow 10 in FIG. 4) to flow along the upper edge opening 201 of the bowl surface 20. It has a shelf 4.

The shelf 4 is formed in a ring shape in a plan view along the upper edge opening 201 at a predetermined height below the upper edge opening 201 of the bowl surface 20 (30 mm below the upper edge opening 201).

In this embodiment, the shelf portion 4 is formed in an annular shape in plan view, but the shelf portion 4 may be formed in a C-shape in plan view. Further, in the present embodiment, the shelf portion 4 is formed at a portion 30 mm below the upper edge opening 201 of the bowl surface 20, but the value may be, for example, 5 mm to 100 mm, and is not limited.

As shown in Figures 2 and 3, the shelf portion 4 has an upper surface 40 facing upward. The normal of the upper surface 40 faces in a direction that forms an angle of 20 degrees or less with respect to the vertical upward direction. In this embodiment, the upper surface 40 and the portion of the bowl surface 20 immediately below the upper surface 40 are continuous by a smooth curve in a cross section perpendicular to the bowl circumferential direction, but this is not particularly limited.

As shown in Figures 2 and 3, the bowl surface 20 has, as a part thereof, an upper wall surface 23 rising from the end of the upper surface 40 of the shelf portion 4 on the outer side of the bowl diameter (i.e., the side opposite the center of the bowl surface 20 in a plan view). The upper wall surface 23 is formed in an annular shape in a plan view, and its normal line faces the inner side of the bowl diameter. The normal line of the upper wall surface 23 forms an angle of 0 to 40 degrees upward with respect to the horizontal direction. The upper end of the upper wall surface 23 becomes the upper edge opening 201 of the bowl surface 20. In this embodiment, the above-mentioned rim portion 3 is provided so as to be continuous with the upper edge opening 201 of the bowl portion 2. The upper wall surface 32, whose normal line faces downward from the horizontal direction, is located above the upper surface 40 of the shelf portion 4.

The flush toilet bowl 1 has a cover wall portion 42 that projects upward on a portion of the upper surface 40 of the shelf portion 4 in the bowl circumferential direction. In this embodiment, as shown in FIG. 4, a cover wall portion 42 having a center angle of approximately 15 to 20 degrees in the circumferential direction of the bowl is provided on the right rear portion of the bowl surface 20.

The space between the cover wall 42 on the top surface 40 of the shelf 4 and the upper wall surface 23 becomes the water supply space 13 to which water is supplied from the water supply pipe 14. The water supply pipe 14 has a water supply outlet 140 that discharges water at its downstream end, and the water supply outlet 140 is introduced into the water supply space 13. Note that a water supply nozzle as the water supply pipe 14 may be placed in advance in the water supply space 13, and an external water supply pipe for supplying water from a water source may be connected to this water supply nozzle. Also, the water supply outlet 140 may be formed by integral molding with the part that constitutes the water supply space 13 without using a water supply nozzle.

As shown in FIG. 4, a portion of the upper surface 40 of the shelf 4 corresponding to the water supply space 13 becomes a water supply surface 130. A portion of the upper surface 40 of the shelf section 4 on the downstream side of the water supply surface 130 becomes a shelf surface 43 that is not covered by the cover wall section 42.

A water supply outlet position where the water supply outlet 140 is arranged at a predetermined position and orientation is determined at a portion on one end side in the circumferential direction of the bowl, which is the upstream end of the water supply space 13 . 3 and 4 show a state in which the water supply pipe 14 is arranged in the water supply space 13, and the water supply outlet 140 is arranged in a predetermined position and orientation at the water supply outlet position. The predetermined position of the water supply outlet 140 is near the rear end of the water supply space 13 as shown in FIG. 4 in the bowl circumferential direction.

The predetermined direction of the water supply outlet 140 is a direction in which the direction of the cleaning water discharged from the water supply outlet 140 (see arrow 141 in the figure) is on the downstream side in the circumferential direction of the bowl (the front side in FIG. 4). The other end in the circumferential direction of the bowl, which is the downstream end of the water supply space 13, serves as a water spout 44 that discharges water onto the shelf surface 43.

In the flush toilet bowl 1, flush water is first discharged from the water supply outlet 140 in the direction of the arrow 141, and then discharged from the water spout 44 onto the shelf surface 43. The cleaning water discharged onto the shelf surface 43 becomes a swirling flow that swirls on the bowl surface 20, as shown by an arrow 142. In this embodiment, the discharged cleaning water forms a swirling flow that rotates counterclockwise in plan view. The position of the spout 44 does not have to be at the rear of the bowl portion 2, but may be at the front. Further, two or more water spouts 44 may be provided.

The washing water gradually falls downward on the bowl surface 20 while swirling around the drain outlet 22, flows into the water storage recess 221, and finally flows out of the bowl section 2 through the drain outlet 220. The washing water that flows out of the bowl section 2 through the drain outlet 220 passes through the drain tube section 5 and the movable trap device 8 and is discharged as sewer water.

As shown in FIG. 5B, when the downstream end of the trap tube 81 moves downward and the outlet 80 faces downward, the accumulated water and waste are discharged into the bowl portion 2. At this time, the control unit 15 controls the cleaning water supply unit 16 to discharge cleaning water from the water spout 44 . As a result, when the discharge operation of the accumulated water and waste is completed and the downstream end of the trap tube 81 moves upward as shown in FIG. 5A, accumulated water is formed in the bowl portion 2.

During the discharge operation of accumulated water and waste (see FIG. 5B), since accumulated water is not formed within the bowl portion 2, the space within the bowl portion 2 and the space on the downstream side of the drain port 220 are easily communicated. When the space inside the bowl section 2 and the space downstream of the drain port 220 communicate with each other, odor tends to flow back toward the space inside the bowl section 2 from the downstream side of the drain port 220.

Therefore, the flush toilet 1 according to the present disclosure has a collision surface 6 at the peripheral edge of the drain port 220 of the bowl surface 20, as shown in FIGS. 2, 3, and 7. The collision surface 6 is a surface facing in a direction 223 opposite to the ejection direction 222 (see FIG. 2). The collision surface 6 is a surface with which the cleaning water collides. It is preferable that the collision surface 6 has a radial length of the drain port 220 of 8 mm or more (preferably 10 mm or more, more preferably 15 mm or more) when viewed in the discharge direction 222 as shown in FIG.

In the present embodiment, the collision surfaces 6 are formed on both the left and right peripheral edges of the drain port 220 when facing the discharge direction 222, and on the upper peripheral edge. That is, the collision surface 6 is formed in the upper half circumference around the drain port 220 from the left side of the drain port 220 to the right side circumference via the upper peripheral edge of the bowl surface 20 of the bottom part 21. There is.

In this embodiment, as shown in FIG. 4, the cleaning water discharged from the water spout 44 lowers its altitude while swirling on the bowl surface 20, and reaches the drain port portion 22. A portion of the wash water flowing in the discharge direction 222 through the drain port portion 22 is discharged from the drain port 220 without colliding with the collision surface 6. The remaining wash water flowing through the drain port 22 in the discharge direction 222 is eventually discharged from the drain port 220, but collides with the collision surface 6 before being discharged from the drain port 220. As shown in FIG. 7, the cleaning water that has collided with the collision surface 6 changes its course along the collision surface 6, but some of it changes its course away from the drain port 220, and the rest goes away from the drain port 220. Change course to approach. The cleaning water that collides with the collision surface 6 and changes its course toward the drain port 220 leaves the collision surface 6 and forms a water film 60 that covers the drain port 220. Although it is preferable that the water film 60 completely cover the drain port 220, it is not necessary to completely cover the drain port 220, and should be at least half the area of the drain port 220 (preferably 80% of the area of the drain port 220, or even Preferably, 90% of the area of the drain port 220 may be covered.

By forming such a water film 60, the drain port 220 is covered with the water film 60 even if no accumulated water is formed in the bowl portion 2 during the operation of discharging the accumulated water and waste (see FIG. 5B). Therefore, it becomes difficult for the space inside the bowl portion 2 to communicate with the space on the downstream side of the drain port 220. As a result, it becomes difficult for odor to flow back toward the space inside the bowl portion 2 from the downstream side of the drain port 220.

In particular, in the case of a toilet device having a movable trap device 8, most of the accumulated water in the bowl part 2 is discharged during the operation of discharging the accumulated water and filth, and the odor is spread from the downstream side of the drain port 220 to the space in the bowl part 2. There will be almost no obstructions. When the flush toilet 1 having the collision surface 6 is installed in a toilet device having such a movable trap device 8, the odor flowing back from the downstream side of the drain port 220 toward the space inside the bowl portion 2 can be significantly reduced. It becomes easier.

Further, since the collision surface 6 is formed on the upper peripheral edge of the drain port 220 on the bowl surface 20, it becomes easier to generate the water film 60 efficiently. That is, since the cleaning water flows from the upper side to the lower side of the bowl surface 20, it passes through the upper part of the drain port 220 before reaching the drain port 220, and collides with the collision surface formed above the drain port 220. 6, and a water film 60 is likely to occur.

Further, the collision surface 6 is at least the side where the wash water swirling around the drain port 220 is located when it faces the discharge direction 222, of the left and right sides of the drain port 220 when facing the discharge direction 222. It is preferable that the drain port 220 is formed at the periphery of the drain port 220. In the present embodiment, the discharged cleaning water has a swirling flow that rotates counterclockwise in a plan view, and when the cleaning water faces the discharge direction 222 near the drain port 220, the cleaning water flows toward the drain port 220. It is easy to locate on the left side of. Therefore, if the collision surface 6 is formed at least on the left peripheral edge of the drain port 220 when facing the discharge direction 222, the cleaning water will easily collide with the collision surface 6, and the water film 60 will be easily formed. .

Further, when the discharged cleaning water turns clockwise in a plan view, if the collision surface 6 is formed on the right peripheral edge of the drain port 220, the cleaning water will easily collide with the collision surface 6. , a water film 60 is likely to be formed.

Furthermore, in this embodiment, the bowl part 2 has a guide shelf surface 7 which is annular around the drain port 220 of the bowl surface 20 in plan view.

The guide shelf surface 7 is formed in the area around the drain outlet 22 of the bottom 21 of the bowl portion 2. As shown in Figures 1 to 3 and 7, the normal of the guide shelf surface 7 faces in a direction that forms an angle of 20 degrees or less with respect to the vertical upward direction.

As shown in FIG. 2, the guide shelf surface 7 is inclined so that it is located at a higher position toward the discharge direction 222 (in this embodiment, toward the rear). As a result, the swirling flow that swirls around the drain port portion 22 becomes inclined upward when heading rearward, stalls, and tends to fall. As a result, when it tries to turn around the drain port 22, it tends to fall into the reservoir water recess 221 and collide with the collision surface 6 on the peripheral edge of the drain port 22. Since the water film 60 spreads more easily when the cleaning water collides with the colliding surface in a direction perpendicular to the colliding surface, the colliding surface 6 is set so that the direction of the colliding swirling flow (cleaning water) is approximately at right angles. ing.

As is clear from the present embodiment described above, the flush toilet (1) of the first aspect includes a bowl portion (2). The bowl part (2) has a bowl surface (20) for receiving dirt and washing water, and is open upward. The bowl part (2) has a drain port (220) in the bottom part (21) facing in a discharge direction (222) for discharging washing water from the bowl part (2). The bowl surface (20) has a collision surface (6) on the periphery of the drain port (220) facing in a direction (223) opposite to the discharge direction (222) and against which the wash water collides.

According to the first aspect, even if accumulated water is not formed in the bowl part (2) during the discharge operation of accumulated water and waste, the water is drained by the water film (60) generated by colliding with the collision surface (6). Since the opening (220) is covered, it becomes difficult for the space inside the bowl part (2) to communicate with the space on the downstream side of the drain port (220).

The second aspect is realized by a combination with the first aspect. In a second aspect, the flush toilet bowl (1) has an impact surface (6) on the upper peripheral edge of the drain port (220).

According to the second aspect, the water film (60) is easily generated efficiently.

The third aspect is realized by a combination with the first aspect or the second aspect. In the third aspect, the bowl portion (2) has a spout (44) that discharges the wash water so that the wash water swirls around the drain port (220) on the bowl surface (20) in plan view. The flush toilet (1) is configured to either the left side or the right side of the drain port (220) when facing the discharge direction (222), when the flush water swirling around the drain port (220) faces the discharge direction (222). A collision surface (6) is provided at the peripheral edge of the drain port (220) on the side where the cleaning water is located.

According to the third aspect, the water film (60) is more likely to be generated efficiently.

The fourth aspect is realized by a combination with any one of the first to third aspects. In the fourth aspect, the bowl portion (2) has a guide shelf surface (7) that is annular around the drain port (220) of the bowl surface (20) in plan view. The guide shelf surface (7) is inclined so that it is located at a higher position as it goes toward the discharge direction (222).

According to the fourth aspect, when trying to turn around the drain port (22), the water tends to fall into the reservoir recess (221) and hits the collision surface (6) at the peripheral edge of the drain port (22). collisions become more likely.

A toilet device according to a fifth aspect includes the flush toilet (1) according to any one of the first to fourth aspects, a movable trap device (8), and a control section (15) that controls the movable trap device (8). , is provided. The movable trap device (8) is arranged on the downstream side of the drain port (220), and the downstream end of the trap tube (81) moves upward so that cleaning water can be stored in the bowl portion (2). It is possible to switch between a state in which the downstream end of the trap tube (81) moves downward and discharges the wash water in the bowl part (2).

According to the fifth aspect, in the case of the toilet device having the movable trap device (8), most of the accumulated water in the bowl part (2) is drained during the operation of discharging the accumulated water and filth, and the drain opening (220) is drained. There is almost no obstruction from the downstream side to the space inside the bowl part (2). When a flush toilet (1) having a collision surface (6) is installed in a toilet device having such a movable trap device (8), the space inside the bowl portion (2) is filled from the downstream side of the drain port (220). This makes it easier to significantly reduce odors flowing back toward the target.

1 Flush toilet 2 Bowl part 20 Bowl surface 21 Bottom part 220 Drain port 222 Discharge direction 223 Opposite direction 44 Spout port 6 Collision surface 7 Guide shelf surface 8 Movable trap device 81 Trap tube

Claims (5)

It has a bowl surface that receives dirt and washing water, and has a bowl part that opens upward,
The bowl portion has a drain port at the bottom for discharging the washing water from the bowl portion,
A collision surface is provided at a peripheral edge of the drain port on the bowl surface, with which the flushing water to be discharged collides;
The bowl portion has a spout that discharges the wash water so that the wash water swirls around the drain port on the bowl surface in a plan view,
A flush toilet, wherein the length of the collision surface in the radial direction of the drain port is 8 mm or more. The flush toilet according to claim 1, wherein the collision surface is provided on the peripheral edge above the drain port. It has a bowl surface that receives dirt and washing water, and has a bowl part that opens upward,
The bowl portion has a drain port at the bottom for discharging the washing water from the bowl portion,
A collision surface is provided at a peripheral edge of the drain port on the bowl surface, with which the flushing water to be discharged collides;
The bowl portion has a spout that discharges the wash water so that the wash water swirls around the drain port on the bowl surface in a plan view,
Of the left and right sides of the drain port when looking downstream in the discharge direction of the wash water, the position of the wash water swirling around the drain port when looking downstream in the discharge direction of the wash water. The flushing toilet has the collision surface on the peripheral edge of the drain port on the side where the water is flushed. The bowl portion has an annular guide shelf surface around the drain port on the bowl surface in plan view,
The flush toilet according to any one of claims 1 to 3, wherein the guide shelf surface is inclined so that the further downstream in the direction of discharge of the flush water from the drain port , the higher the guide shelf is located. . The flush toilet according to any one of claims 1 to 4,
On the downstream side of the drain port, the downstream end of the trap tube moves upward to collect the wash water in the bowl section, and the downstream end of the trap tube moves downward to store the wash water in the bowl section. a movable trap device capable of switching between a state in which the washing water is discharged;
A toilet device, comprising: a control section that controls the movable trap device.

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